BAG WITH ADJUSTABLE FIRMNESS AND USING METHOD THEREOF

Abstract

A bag with adjustable firmness and a using method thereof, which relate to the field of travel goods. The bag includes a bag body and an inflatable airbag. An airbag accommodating space is arranged around an inner side of the bag body. The inflatable airbags are arranged in the airbag accommodating space and around the inner side of the bag body in a circle with space between each other. Inflation of the airbag increases the firmness of bag panel to achieve structured and three-dimensional shape for the bag body. Deflation of the bag decreases the firmness of bag panel to allow bag body to be softer and easier to store. The expansion or contraction of airbag can adjust the firmness of bag body according to actual usage scenarios, solving the problem in conventional bags where flexibility and rigidity of fabric cannot be adjusted to suit different usage needs.

Claims

1. A bag with adjustable firmness, comprising: a bag body having an airbag accommodating space formed inside; the airbag accommodating space is arranged around an inner side of the bag body; and an inflatable airbag arranged in the airbag accommodating space, and the inflatable airbag is arranged around the inner side of the bag body.

2. The bag with adjustable firmness according to claim 1, wherein the inflatable airbag comprises a plurality of first airbags, the plurality of first airbags are arranged in the airbag accommodating space, and the plurality of first airbags are arranged around the inner side of the bag body in a circle with space between each other; the bag with adjustable firmness comprises a plurality of inflation and deflation ports, each of the inflation and deflation ports is provided on the bag body and connected to one first airbag; and a sealing element is detachably provided on the inflation and deflation port.

3. The bag with adjustable firmness according to claim 2, wherein the sealing element is a sealing cover or a sealing plug.

4. The bag with adjustable firmness according to claim 1, wherein the inflatable airbag comprises a plurality of second airbags; the plurality of second airbags are arranged in the airbag accommodating space, and the plurality of second airbags are arranged around the inner side of the bag body in a circle with space between each other; a first air tube is provided between two adjacent second airbags, and the first air tube is configured to connect the two adjacent second airbags; the bag with adjustable firmness comprises a first deflation port and a first inflation port, and at least one first deflation port and at least one first inflation port are provided; the at least one first deflation port is disposed on the bag body and connected to the second airbag; and the at least one first inflation port is disposed on the bag body and connected to the second airbag.

5. The bag with adjustable firmness according to claim 4, wherein the bag with adjustable firmness comprises a first inflation check valve and a first deflation check valve; the first inflation check valve is disposed on the first inflation port, and the first inflation check valve is configured to prevent the air in the second airbag from escaping; and the first deflation check valve is disposed on the first deflation port, and the first deflation check valve is configured to prevent external air from entering the second airbag.

6. The bag with adjustable firmness according to claim 5, wherein the first deflation check valve is provided with a pressure threshold, when a pressure inside the second airbag is greater than the pressure threshold, the first deflation check valve opens, allowing air in the second airbag to be released to outside, and until the pressure inside the second airbag is less than or equal to the pressure threshold, the first deflation check valve closes.

7. The bag with adjustable firmness according to claim 1, wherein a supporting and accommodating space is formed inside the bag body, and the supporting and accommodating space is arranged to be next to a back of a user; and a third airbag is arranged in the supporting and accommodating space, and the third airbag is configured to support human spine.

8. The bag with adjustable firmness according to claim 7, wherein a plurality of third airbags are provided, and the plurality of third airbags are arranged inside the supporting and accommodating space; a second air tube is provided between two adjacent third airbags, and the second air tube is configured to connect the two adjacent third airbags; the bag with adjustable firmness comprises a second deflation port and a second inflation port, and at least one second deflation port and at least one second inflation port are provided; the at least one second deflation port is disposed on the bag body and connected to the third airbag; and the at least one second inflation port is disposed on the bag body and connected to the third airbag.

9. The bag with adjustable firmness according to claim 7, wherein the airbag accommodating space can be opened or closed, and the inflatable airbag is detachably arranged in the airbag accommodating space; and the supporting and accommodating space can be opened or closed, and the third airbag is detachably arranged in the airbag accommodating space.

10. A using method for a bag with adjustable firmness, the method is applied to the bag with adjustable firmness according to claim 1, the method comprising: inflating the inflatable airbag when a firmness of the bag needs to be increased, expanding and hardening the bag body; deflating the inflatable airbag when the firmness of the bag needs to be reduced, contracting and softening the bag body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For those skilled in the art, other drawings can be obtained based on these drawings without involving creative work.

[0042] FIG. 1 is a schematic diagram of the structure of a first airbag of a bag with adjustable firmness in a bag body according to an embodiment of the present application;

[0043] FIG. 2 is an enlarged cross-sectional view of portion A of a bag with adjustable firmness according to an embodiment of the present application;

[0044] FIG. 3 is a schematic diagram of the structure of a second airbag of a bag with adjustable firmness in a bag body according to an embodiment of the present application;

[0045] FIG. 4 is a schematic diagram of the structure of a third airbag of a bag with adjustable firmness in a rear bag panel according to an embodiment of the present application;

[0046] FIG. 5 is a schematic diagram of the structure of an inflatable airbag of a bag with adjustable firmness being installed and magnetically connected to a bag body according to an embodiment of the present application;

[0047] FIG. 6 is a flow chart of a using method for a bag with adjustable firmness in an embodiment of the present application.

DETAILED DESCRIPTION OF EMBODIMENTS

[0048] In order to enable those skilled in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0049] The present application is further described in detail below in conjunction with the accompanying drawings.

[0050] The embodiment of the present application discloses a bag with adjustable firmness and a method of using the bag.

[0051] As shown in FIG. 1, FIG. 2 and FIG. 3, a bag with adjustable firmness includes a bag body and an inflatable airbag, and an airbag accommodating space is formed inside the bag body; the airbag accommodating space is arranged around an inner side of the bag body;

[0052] The inflatable airbag is arranged inside the airbag accommodating space, and the inflatable airbag is arranged around the inner side of the bag body.

[0053] Inflation of the airbag can increase the firmness of the bag panel, making the bag body stiff and three-dimensional. Deflation of the airbag can reduce the firmness of the bag panel, making the bag body softer and easier to store. The expansion or contraction of the airbag can adjust the hardness of the bag body according to the actual use scenario, solving the problem that the existing bag body cannot adjust the firmness of the bag body fabric according to the use scenario.

[0054] The bag body is in the shape of a cube as a whole, and includes an upper bag panel 11, a lower bag panel 12, a left bag panel 13, a right bag panel 14, a front bag panel 17, and a rear bag panel 18. The upper bag panel 11, the lower bag panel 12, the left bag panel 13, the right bag panel 14, the front bag panel 17, and the rear bag panel 18 are enclosed together to form a cube shape as a whole, that is, the front bag panel 17 and the rear bag panel 18 are equivalent to the top and bottom surfaces of the cube, and the upper bag panel 11, the lower bag panel 12, the left bag panel 13, and the right bag panel 14 are equivalent to the sides of the cube.

[0055] The rear bag panel 18 is used to fit against the back of the user.

[0056] The bag body also includes connecting bag panels, which are generally curved arc-shaped. There are four connecting bag panels, which are respectively arranged at the connection between the upper bag panel 11 and the right bag panel 14, the connection between the right bag panel 14 and the lower bag panel 12, the connection between the lower bag panel 12 and the left bag panel 13, and the connection between the left bag panel 13 and the upper bag panel 11.

[0057] The upper packing piece 11, the lower packing piece 12, the left packing piece 13, the right packing piece 14, the front packing piece 17, the rear packing piece 18 and the connecting packing piece are all composed of an outer fabric 15 and a lining fabric 16. The outer fabric 15 and the lining fabric 16 can be composed of one or more fabrics selected from natural fibers (from plants and animals, such as cotton, linen, silk, wool, etc.), synthetic fibers (polyester, nylon, acrylic, etc.), natural leather, and synthetic leather, so as to achieve the properties of waterproof, tear-resistant, and wear-resistant of the bag body.

[0058] An airbag accommodating space is formed between the outer fabric 15 and the lining fabric 16.

[0059] The airbag accommodating space includes an upper accommodating space, a lower accommodating space, a left accommodating space and a right accommodating space.

[0060] The airbag accommodating space of the upper bag panel 11 is the upper accommodating space, the airbag accommodating space of the lower bag panel 12 is the lower accommodating space, the airbag accommodating space of the left bag panel 13 is the left accommodating space, and the airbag accommodating space of the right bag panel 14 is the right accommodating space.

[0061] The upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space are connected end-to-end.

[0062] At least one inflatable airbag is respectively arranged in the upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space.

[0063] In the present embodiment, one inflatable airbag is provided in each of the upper bag panel 11, the lower bag panel 12, the left bag panel 13 and the right bag panel 14, and the shape of the inflatable airbag is a long strip matching the length of the upper bag panel 11, the lower bag panel 12, the left bag panel 13 and the right bag panel 14 respectively.

[0064] The inflatable airbag is an airtight elastic airbag, and the inflatable airbag can be one of a plastic airbag, a PVC (polyvinyl chloride) airbag, and a rubber airbag.

[0065] There are multiple hollow cavities inside the inflatable airbag, which are interconnected and the air between the cavities can flow freely. The inflatable airbag can be inflated with air by mouth, manual air blowing (leather tiger), or electric pump to expand the cavity of the inflatable airbag, so that the bag body becomes stiff and supportive due to inflation.

[0066] As shown in FIG. 1, FIG. 3 and FIG. 5, the airbag accommodating space can be opened or closed.

[0067] The bag body is provided with a first zipper 5, and the first zipper 5 can open the airbag accommodating space.

[0068] In the present embodiment, a plurality of first zippers 5 are provided, the number of the first zippers 5 corresponds to the number of the inflatable airbags, and each first zipper 5 is provided near the position of the corresponding inflatable airbag.

[0069] The first zipper 5 can be opened to fix the corresponding inflatable airbag into the airbag accommodating space, thereby realizing the insertion-type fixation and replaceable function of the inflatable airbag.

[0070] Furthermore, the inflatable airbag is detachably arranged in the airbag accommodating space.

[0071] The disassembly method between the inflatable airbag and the airbag accommodating space can adopt various methods such as magnetic attraction, adhesive bonding and snapping. It is only necessary to ensure that the inflatable airbag is detachably set in the airbag accommodating space. No restriction is made on the detachable manner in which the inflatable airbag is set in the airbag accommodating space.

[0072] The following is examples of using magnetic attraction and adhesive bonding, respectively.

[0073] In one implementation of the embodiment of the present application, the inflatable airbag is magnetically attracted to the inner wall of the bag body.

[0074] A first magnetic element 24 is disposed on the inflatable airbag, and a second magnetic element 19 is disposed on the inner wall of the bag body. The first magnetic element 24 and the second magnetic element 19 have mutual attraction.

[0075] A plurality of second magnetic elements 19 are provided, and the plurality of second magnetic elements 19 are respectively provided on the outer fabric 15 and the lining fabric 16.

[0076] A plurality of first magnetic elements 24 are provided, and the number of the first magnetic elements 24 corresponds to the number of the second magnetic elements 19. The plurality of first magnetic elements 24 are arranged on both sides of the inflatable airbag. When the zipper is unzipped and the inflatable airbag is placed into the airbag accommodating space, each first magnetic element 24 corresponds to the plurality of second magnetic elements 19 one by one, and the inflatable airbag is fixed in the airbag accommodating space.

[0077] It should be noted that there is no restriction on the polarity of the end of the first magnetic element 24 facing the corresponding second magnetic element 19, and there is no restriction on the polarity of the end of the second magnetic element 19 facing the corresponding first magnetic element 24.

[0078] That is, the polarity of the end of the first magnetic element 24 facing the corresponding second magnetic element 19 can be either the N pole or the S pole. Similarly, the polarity of the end of the second magnetic element 19 facing the corresponding first magnetic element 24 can be either the N pole or the S pole.

[0079] It is only necessary to ensure that the first magnetic element 24 and the corresponding second magnetic element 19 have mutual attraction.

[0080] In the present embodiment, two first magnetic elements 24 are arranged with space between each other on one side of one inflatable airbag, and the polarities of the two first magnetic elements 24 facing the inner wall of the bag body are respectively N pole and S pole. Then the polarities of the corresponding second magnetic elements 19 on the inner wall of the bag body facing the first magnetic elements 24 are respectively S pole and N pole.

[0081] Such arrangement can prevent the first magnet from being attracted to a wrong position when the inflatable airbag is fixed to the airbag accommodating space.

[0082] In another implementation of the present application, the inflatable airbag is adhered to the inner wall of the bag body, a first adhesive element is provided on the inflatable airbag, and a second adhesive element is provided on the inner wall of the bag body, and the first adhesive element and the second adhesive element can be bonded to each other.

[0083] In the present embodiment, the first adhesive element and the second adhesive element are Velcro adhesives that are bonded to each other.

[0084] A plurality of second adhesive elements are provided, and are respectively arranged on the outer fabric 15 and the lining fabric 16.

[0085] A plurality of first adhesive elements are provided, and the number of the first adhesive elements corresponds to the number of the second adhesive elements. The plurality of first adhesive elements are provided on both sides of the inflatable airbag. When the zipper is unzipped and the inflatable airbag is placed into the airbag accommodating space, each first adhesive element corresponds to the plurality of second adhesive elements one by one, and the inflatable airbag is fixed in the airbag accommodating space.

[0086] As shown in FIG. 1, in one implementation of the embodiment of the present application, the inflatable airbag includes a first airbag 21, and a plurality of first airbags 21 are provided, and the plurality of first airbags 21 are arranged in the airbag accommodating space, and the plurality of first airbags 21 are arranged around the inner side of the bag body in a circle with space between each other;

[0087] The bag with adjustable firmness includes an inflation and deflation port 211, and a plurality of inflation and deflation ports 211 are provided, each of which is provided on the bag body and connected to one of the first airbags 21;

[0088] A detachable sealing element is provided on the inflation and deflation port 211.

[0089] At least one first airbag 21 is disposed in each of the upper accommodating space, the left accommodating space, the lower accommodating space, and the right accommodating space.

[0090] In the present embodiment, each of the upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space has one first airbag 21 arranged.

[0091] The first airbags 21 in the upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space are independent of each other and are not connected.

[0092] The number of the inflation and deflation ports 211 is consistent with the number of first airbags 21. The outer shell of each inflation and deflation port 211 is fixed to the bag body at a position corresponding to the first airbag 21, and the pipeline portion extends into the airbag accommodating space to communicate with the corresponding first airbag 21. The first airbag 21 can be inflated or deflated through the inflation and deflation ports 211.

[0093] The first airbags 21 in the upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space are independent of each other and are not connected, so that the inflation amount of the first airbag 21 in each accommodating space can be adjusted individually according to actual needs, thereby adjusting the hardness of the bag panel to adapt to different functional requirements.

[0094] For example, the first airbag 21 in the left accommodating space and the first airbag 21 in the right accommodating space are inflated separately, so that the firmness of the left and right bag panels can be increased while the firmness of the upper, the lower, the front and the rear bag panels remains unchanged, making the left and right sides of the bag body stiff and improving the longitudinal support of the bag body.

[0095] Alternatively, the first airbag 21 in the left accommodating space and the first airbag 21 in the right accommodating space can be deflated separately, so that the hardness of the upper, the lower, the front and the rear bag panels remains unchanged, and the left and right sides of the bag body are softened, reducing the longitudinal support of the bag body.

[0096] The sealing element is used to connect or disconnect the inflation and deflation port 211 to the outside, and the sealing element may be a sealing cover or a sealing plug.

[0097] In practical applications, the outer fabric 15 and the lining fabric 16 are both made of nylon, and the first airbag 21 is an airbag that can be repeatedly inflated and deflated.

[0098] When horizontal storage is required, the first airbag 21 in the upper accommodating space and the first airbag 21 in the lower accommodating space are deflated, so that the hardness of the upper bag panel 11 and the lower bag panel 12 is reduced, thereby reducing the lateral hardness and support of the bag body, making it easier to roll up the bag body horizontally and compress its volume, thereby facilitating the overall storage of the bag body.

[0099] When longitudinal storage is required, the first airbag 21 in the left accommodating space and the first airbag 21 in the right accommodating space are deflated, so that the hardness of the left bag panel 13 and the right bag panel 14 is reduced, making it easier to roll up and compress the volume of the bag longitudinally, thereby facilitating the overall storage of the bag.

[0100] When support is needed, the upper bag panel 11, the lower bag panel 12, the left bag panel 13 and the right bag panel 14 are inflated through the inflation and deflation ports 211 by an electric pump, so that multiple hollow structure cavities expand, thereby increasing the hardness of all the upper bag panels 11, the lower bag panels 12, the left bag panels 13 and the right bag panels 14; when the suitable hardness is reached, the electric pump is turned off to stop inflation, so that the bag body maintains the three-dimensional shape and the beauty, and stands independently on the ground.

[0101] As shown in FIG. 3, in another implementation of the embodiment of the present application, the inflatable airbag includes a second airbag 22;

[0102] A plurality of second airbags 22 are provided, and the plurality of second airbags 22 are arranged in the airbag accommodating space, and the plurality of second airbags 22 are arranged around the inner side of the bag body in a circle with space between each other;

[0103] A first air tube 3 is provided between two adjacent second airbags 22, and the first air tube 3 is used to connect the two adjacent second airbags 22;

[0104] The bag with adjustable firmness includes a first inflation port 221 and a first deflation port 222, and at least one first inflation port 221 and at least one first deflation port 222 are provided;

[0105] The at least one first inflation port 221 is disposed on the bag body and connected to the second airbag 22;

[0106] The at least one first deflation port 222 is disposed on the bag body and connected to the second airbag 22.

[0107] In one implementation, at least four second airbags 22 are provided.

[0108] Each of the upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space has at least one second airbag 22 arranged.

[0109] In the present embodiment, four second airbags 22 are provided, and each of the upper accommodating space, the left accommodating space, the lower accommodating space and the right accommodating space is provided with one second airbag 22.

[0110] One first inflation port 221 and one second deflation port 232 are provided.

[0111] The shell of the first inflation port 221 is fixed at the position of the bag body corresponding to the second airbag 22, and the tube portion extends into the airbag accommodating space to communicate with the corresponding second airbag 22.

[0112] The shell of the first deflation port 222 is fixed at the position of the bag body corresponding to the second airbag 22, and the tube portion extends into the airbag accommodating space to communicate with the corresponding second airbag 22.

[0113] In order to facilitate the flow of air in the second airbag 22 and thus facilitate the inflation and deflation of the bag panel, a second airbag 22 provided with a first inflation port 221 and a second airbag 22 provided with a first deflation port 222 are arranged relative to each other, that is, the two second airbags 22 have four arrangements: one is arranged in the upper accommodating space and the other is arranged in the lower accommodating space; or one is arranged in the lower accommodating space and the other is arranged in the upper accommodating space; or one is arranged in the left accommodating space and the other is arranged in the right accommodating space; or one is arranged in the right accommodating space and the other is arranged in the left accommodating space.

[0114] In the present embodiment, the second airbag 22 with the first inflation port 221 is arranged in the upper accommodating space, and the second airbag 22 with the first deflation port 222 is arranged in the lower accommodating space. The other two second airbags 22 without inflation ports are arranged in the left accommodating space and the right accommodating space respectively.

[0115] Four first air tubes 3 are provided, and the four first air tubes 3 are respectively arranged in four connecting accommodating spaces located at the top corners. The two ends of the first air tube 3 in each connecting accommodating space are respectively connected to two adjacent second airbags 22, so that the four second airbags 22 form a closed annular channel connected to each other, and the air can flow in the annular channel.

[0116] Therefore, the four second airbags 22 can be inflated and deflated as a whole only by inflating the annular channel through the first inflation port 221 and exhausting the air to the outside through the first deflation port 222.

[0117] Furthermore, the first inflation port 221 and the first deflation port 222 are respectively disposed at opposite ends of the two second airbags 22.

[0118] After the air enters the annular channel from the first inflation port 221 of the upper accommodating space, there are two flow paths, one of which is from the left side, passing through the second airbag 22 located in the left accommodating space and finally flowing to the first deflation port 222 located in the lower accommodating space, and the other is from the right side, passing through the second airbag 22 located in the right accommodating space and finally flowing to the first deflation port 222 located in the lower accommodating space.

[0119] The first inflation port 221 and the first deflation port 222 are respectively arranged at the opposite ends of the two second airbags 22, so that the path lengths of the two flow paths are the same, thereby reducing the difference in expansion changes of the second airbags 22 at various locations in the airbag accommodating space, and preventing the situation where the second airbag 22 on one side is inflated while the second airbag 22 on the other side is still in a deflated state.

[0120] The bag with adjustable firmness includes a first inflation check valve and a first deflation check valve;

[0121] The first inflation check valve is disposed on the first inflation port 221, and the first inflation check valve is used to prevent the air in the second airbag 22 from being discharged;

[0122] The first deflation check valve is disposed on the first deflation port 222, and the first deflation check valve is used to prevent external air from entering into the second airbag 22.

[0123] The first inflation check valve is disposed at the first inflation port 221 of the upper accommodating space, and the first deflation check valve is disposed at the first deflation port 222 of the lower accommodating space.

[0124] The first inflation check valve can control the air flow direction, and the first deflation check valve can prevent the air in the second airbag 22 of the upper accommodating space from flowing back to the outside of the second airbag 22 when the second airbag 22 stops inflating, so as to maintain the overall sealing of the inflated airbag after inflation.

[0125] The first deflation check valve can also control the direction of air flow. The first deflation check valve can prevent external air from flowing back into the second airbag 22 in the lower accommodating space when the second airbag 22 stops exhausting, so as to maintain the overall sealing of the inflatable airbag after deflation.

[0126] The first deflation check valve is provided with a pressure threshold. When the pressure in the second airbag 22 is greater than the pressure threshold, the first deflation check valve opens, allowing the air in the second airbag 22 to be released to the outside, until the pressure in the second airbag 22 is less than or equal to the pressure threshold, and the first deflation check valve closes.

[0127] The pressure threshold is a safe pressure value that the second airbag 22 can withstand, and the pressure threshold is less than or equal to the limit pressure value that the second airbag 22 can withstand.

[0128] When the pressure in the second airbag 22 exceeds a certain set pressure threshold, the first deflation check valve opens to allow air to be released until the pressure drops to a preset level, then the sealed state is restored. The setting of the pressure threshold can prevent the air in the second airbag 22 from being damaged or bursting when the pressure is too high.

[0129] In actual application, when the bag needs to be stored, the first deflation port 222 on the second airbag 22 in the lower accommodating space is deflated to discharge the air in the cavity of the second airbag 22, thereby reducing the hardness of all bag pieces, and reducing the hardness and support of the bag, making it easier to roll up and compress the volume, thereby facilitating the overall storage of the bag.

[0130] When the bag body needs support, the first inflation port 221 on the second airbag 22 in the upper accommodating space is inflated through an electric pump, so that multiple cavities expand and the hardness of all bag pieces increases; when the appropriate hardness is reached, the electric pump is turned off to stop inflation, and the check valve of the inflation part seals the airbag, effectively preventing the air in the airbag from flowing back to the outside of the airbag, allowing the bag body to maintain its three-dimensional shape and beauty, and stand independently on the ground.

[0131] As shown in FIG. 4, a supporting and accommodating space is formed in the bag body, and the supporting and accommodating space is arranged to be next to the back of the user;

[0132] A third airbag 23 is arranged in the supporting and accommodating space, and the third airbag 23 is used to support the human spine.

[0133] The supporting and accommodating space is formed by the rear bag panel 18.

[0134] A plurality of third airbags 23 are provided, and the plurality of third airbags 23 are arranged in the supporting and accommodating space;

[0135] A second air tube 4 is provided between two adjacent third airbags 23, and the second air tube 4 is used to connect the two adjacent third airbags 23;

[0136] The bag with adjustable firmness includes a second deflation port 232 and a second inflation port 231, and at least one second deflation port 232 and at least one second inflation port 231 are provided;

[0137] The at least one second deflation port 232 is disposed on the bag body and connected to the third airbag 23;

[0138] The at least one second inflation port 231 is disposed on the bag body and connected to the third airbag 23.

[0139] As shown in FIG. 4 and FIG. 5, the supporting and accommodating space can be opened or closed.

[0140] The bag body is also provided with a second zipper 6, which can be unzipped to open the supporting and accommodating space.

[0141] The second zipper 6 is arranged close to the third airbag 23, and the second zipper 6 can be opened to fix the corresponding third airbag 23 into the supporting and accommodating space, thereby realizing the insertion-type fixing and replaceable functions of the third airbag 23.

[0142] Furthermore, the third airbag is detachably arranged in the supporting and accommodating space.

[0143] The disassembly method between the third airbag and the supporting and accommodating space can adopt various snap-in methods such as magnetic attraction, adhesive bonding and snapping. It is only necessary to ensure that the third airbag is detachably set in the supporting and accommodating space. No restriction is made on how the third airbag is detachably connected in the supporting and accommodating space.

[0144] Similarly, when the third airbag is magnetically attracted to the supporting and accommodating space, each third airbag 23 and the corresponding inner wall of the bag panel are respectively provided with a third magnetic element and a fourth magnetic element, and there is mutual attraction between the third magnetic element and the fourth magnetic element.

[0145] The number and distribution of the third magnetic elements on each third airbag 23 and the number and distribution of the fourth magnetic elements in the rear bag panel 18 are consistent with the arrangement of the inflatable airbag in the airbag accommodating space, and will not be repeated here.

[0146] When the third airbags are adhered to the supporting and accommodating space, each third airbag 23 and the inner wall of the corresponding bag panel are respectively provided with a third adhesive element and a fourth adhesive element, and the third adhesive element and the fourth adhesive element can be bonded to each other.

[0147] The number and distribution of the third adhesives on each third airbag 23 and the number and distribution of the fourth adhesives in the rear bag panel 18 are consistent with the arrangement of the inflatable airbag in the airbag accommodating space, and will not be repeated here.

[0148] It should be noted that there are many combinations of the installation method of the inflatable airbag in the airbag accommodating space and the installation method of the third airbag 23 in the supporting and accommodating space, that is, the installation method of the inflatable airbag in the airbag accommodating space may be magnetic attraction and the installation method of the third airbag 23 in the supporting and accommodating space may be adhesive bonding; or the installation method of the inflatable airbag in the airbag accommodating space may be adhesive bonding and the installation method of the third airbag 23 in the supporting and accommodating space may be magnetic attraction.

[0149] There is no restriction on the matching manner between the installation manner of the inflatable airbag in the airbag accommodating space and the installation manner of the third airbag in the supporting and accommodating space.

[0150] A plurality of third airbags 23 are arranged in the rear accommodating space.

[0151] Adjacent third airbags 23 are connected via the second air tube 4, and the two third airbags 23 located at both ends are respectively connected to the second inflation port 231 and the second deflation port 232.

[0152] That is, one second inflation port 231 and one second deflation port 232 are provided, the second inflation port 231 is provided close to one of the third airbags 23 located at one end, and the second deflation port 232 is provided close to the third airbag 23 located at another end.

[0153] The shell of the second inflation port 231 is fixed at the position of the bag body corresponding to the third airbag 23, and the tube portion extends into the rear accommodating space to communicate with the corresponding third airbag 23.

[0154] The shell of the second deflation port 232 is fixed at the position of the bag body corresponding to the third airbag 23, and the tube portion extends into the rear accommodating space to communicate with the corresponding third airbag 23.

[0155] Furthermore, the second inflation port 231 and the second deflation port 232 are respectively provided with a second inflation check valve and a second deflation check valve. The second inflation check valve and the second deflation check valve have the same effect as the first inflation check valve and the first deflation check valve, and will not be repeated here.

[0156] In addition, the second deflation check valve can also be provided with a pressure threshold. When the pressure inside the third airbag 23 is greater than the pressure threshold, the second deflation check valve opens, allowing the air inside the third airbag 23 to be released to the outside until the pressure inside the third airbag 23 is less than or equal to the pressure threshold, and the second deflation check valve closes.

[0157] Furthermore, after the third airbag 23 is inflated, it becomes a curved strip, so as to better match the spinal curve of the user.

[0158] It should be noted that in the present embodiment, the supporting and accommodating space is connected to the airbag accommodating space, but it is not limited thereto, and the supporting and accommodating space may also be disconnected from the airbag accommodating space.

[0159] In actual application, the expansion degree of the third airbag 23 in the supporting and accommodating space is adjusted by inflation and deflation, thereby adjusting the hardness, and forming a vertical spine-like support on the rear bag panel 18.

[0160] The third airbag 23 has a three-dimensional curve when inflated, and the curvature of the curve matches the curve of the human spine, which is in line with ergonomic design.

[0161] When support is needed, the third airbag 23 is inflated by an electric pump to expand the multiple hollow structures; when the suitable hardness is reached, the electric pump is turned off to stop inflation, and the check valve of the third airbag 23 seals the third airbag 23 to isolate the third airbag 23 from air exchange with the outside world.

[0162] The provision of multiple third airbags 23 plays a supporting and cushioning role, improving the user's carrying experience.

[0163] When the third airbags 23 in the supporting and accommodating space are inflated, gaps are formed between the plurality of three-dimensional curved third airbags 23 to improve ventilation effect, thereby improving air flow along the back of the user, which helps to keep the back of the human body dry and dissipate heat.

[0164] It should be noted that the first airbag 21, the second airbag 22 and the third airbag 23 are any one of air column cushions or gourd membrane cushions.

[0165] As shown in FIG. 6, the present application further discloses a bag with adjustable firmness as described above and a using method thereof, the method includes the steps of:

[0166] S100: Inflating the inflatable airbag when a firmness of the bag needs to be increased, expanding and hardening the bag body.

[0167] The inflatable airbag is the first airbag 21. When horizontally storage is required, the first airbag 21 in the upper accommodating space and the first airbag 21 in the lower accommodating space are deflated, so that the hardness of the upper bag panel 11 and the lower bag panel 12 is reduced, thereby reducing the lateral hardness and support of the bag body, making it easy to roll up the bag body horizontally and compress its volume, thereby facilitating the overall storage of the bag body.

[0168] When longitudinal storage is required, the first airbag 21 in the left accommodating space and the first airbag 21 in the right accommodating space are deflated, so that the hardness of the left bag panel 13 and the right bag panel 14 is reduced, making it easier to roll up and compress the volume of the bag longitudinally, thereby facilitating the overall storage of the bag.

[0169] When support is required, the upper bag panel 11, the lower bag panel 12, the left bag panel 13 and the right bag panel 14 are inflated through the inflation and deflation ports 211 by an electric pump, so that multiple hollow structures expand, thereby increasing the hardness of all the upper bag panels 11, the lower bag panels 12, the left bag panels 13 and the right bag panels 14; when the suitable hardness is reached, the electric pump is turned off to stop inflation, so that the bag body maintains its three-dimensional shape and beauty, and stands independently on the ground.

[0170] The inflatable airbag is the second airbag. When the bag body needs to be stored, the first deflation port 222 on the second airbag 22 in the lower accommodating space is deflated to discharge the air in the cavity of the second airbag 22, thereby reducing the hardness of all bag pieces, and reducing the hardness and support of the bag, making it easier to roll up and compress the volume, thereby facilitating the overall storage of the bag.

[0171] When the bag body needs support, the first inflation port 221 on the second airbag 22 in the upper accommodating space is inflated through an electric pump, so that multiple hollow structures expand and the hardness of all bag pieces increases; when the appropriate hardness is reached, the electric pump is turned off to stop inflation, and the check valve of the inflation part seals the airbag, effectively preventing the air in the airbag from flowing back to the outside of the airbag, allowing the bag body to maintain its three-dimensional shape and beauty, and stand independently on the ground.

[0172] S200: Deflating the inflatable airbag when the firmness of the bag needs to be reduced, contracting and softening the bag body.

[0173] In summary, a bag with adjustable firmness and a using method thereof are provided, the bag includes a bag body and an inflatable airbag, an airbag accommodating space is formed inside the bag body; the airbag accommodating space is arranged around the inner side of the bag body;

[0174] The inflatable airbag is arranged in the airbag accommodating space, and the inflatable airbag is arranged around the inner side of the bag body.

[0175] Inflation of the airbag can increase the hardness of the bag panel, making the bag body stiff and three-dimensional. Deflation of the airbag can reduce the hardness of the bag panel, making the bag body softer and easier to store. The expansion or contraction of the airbag can adjust the hardness of the bag body according to the actual use scenario, solving the problem that the existing bag body cannot adjust the firmness of the bag body fabric according to the use scenario.

[0176] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0177] It should be noted that the present application provides a bag with adjustable firmness and a using method thereof as examples to introduce the structure and working principle of the present application, and the present application is not only related to the bag with adjustable firmness and the using method thereof, but also can be applied to the production and use of other similar workpieces.

[0178] It should be understood that the present application is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

[0179] The above description is only some embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present application should be included in the protection scope of the present application.