ELECTRIC LIFTING BED

Abstract

An electric lifting bed is provided, which includes a bed frame, a fence and two sets of lifting assemblies respectively connected to a head and a tail of the bed frame. Each set of lifting assemblies includes two lifting bed legs and screw nut assemblies in the two lifting bed legs. The electric lifting bed further includes at least one driving motor, at least one motor cover plate and at least one shielding plate. The motor cover plate covers the driving motor, the shielding plate is connected with the bed frame and used for shielding the lifting assemblies, the driving motor and wiring harnesses arranged on the bed frame. The electric lifting bed can prevent the wiring harnesses, wiring harness connectors, transmission rods of the lifting assemblies and the driving motors from being exposed, ensuring good safety during use, and making maintenance of wirings simple and convenient.

Claims

1. An electric lifting bed, comprising: a bed frame, a fence connected to the bed frame, and two sets of lifting assemblies respectively connected to a head and a tail of the bed frame, wherein each set of lifting assemblies comprises two lifting bed legs and screw nut assemblies in the two lifting bed legs; at least one driving motor, disposed on a lower side of the bed frame, wherein the at least one driving motor is in driving connection with the screw nut assemblies; at least one motor cover plate, connected with the bed frame and covering the at least one driving motor; and at least one shielding plate, connected with the bed frame, wherein the at least one shielding plate is for shielding the lifting assemblies, the at least one driving motor and wiring harnesses arranged on the bed frame.

2. The electric lifting bed according to claim 1, wherein the shielding plate comprises a first connecting portion connected with the motor cover plate and a second connecting portion disposed opposite to the first connecting portion; a shielding portion is disposed between the first connecting portion and the second connecting portion of the shielding plate, a first pivoting portion extending along a length direction of the shielding plate is disposed between the shielding portion and the first connecting portion, a second pivoting portion extending along the length direction of the shielding plate is disposed between the shielding portion and the second connecting portion, and the first connecting portion, the shielding portion, and the second connecting portion are disposed around and on an outer side of a portion of the lifting assembly, the driving motor, and the wiring harnesses; or wherein the shielding plate comprises a shielding portion connected to the motor cover plate and a second connecting portion connected to the shielding portion, a second pivoting portion extending along a length direction of the shielding plate is disposed between the shielding portion and the second connecting portion, and the shielding portion and the second connecting portion are disposed around and on an outer side of a portion of the lifting assembly, the driving motor and the wiring harnesses.

3. The electric lifting bed according to claim 2, wherein the first connecting portion passes through the bed frame from bottom to top and is detachably connected to a top of the motor cover plate; or the shielding portion is detachably connected to a side of the motor cover plate.

4. The electric lifting bed according to claim 3, wherein the first connecting portion is connected to the top of the motor cover plate through a hook-and-loop fastener; or the shielding portion is connected to the side of the motor cover plate through a hook-and-loop fastener.

5. The electric lifting bed according to claim 4, wherein the shielding plate is made of felt; or the shielding plate comprises a fabric outer sleeve and a base plate disposed inside the sleeve, and the base plate comprises a first plate corresponding to the first connecting portion, a second plate corresponding to the shielding portion and a third plate corresponding to the second connecting portion, the outer sleeve is sewn with a first stitching portion between the first plate and the second plate, and a second stitching portion between the second plate and the third plate, the first stitching portion serves as the first pivoting portion, and the second stitching portion serves as the second pivoting portion.

6. The electric lifting bed according to claim 2, wherein the first connecting portion is provided with a clearance groove for accommodating a longitudinal rod of the bed frame, and the clearance groove at least partially extends to the shielding portion.

7. The electric lifting bed according to claim 1, wherein the fence comprises a bed head assembly connected to the head of the bed frame and a bed tail assembly connected to the tail of the bed frame, and the second connecting portion of the shielding plate is connected to a bottom of the bed head assembly or a bottom of the bed tail assembly.

8. The electric lifting bed according to claim 1, wherein at least one motor cover plate is connected to an edge position or a center position of the bed frame; and at least one shielding plate is connected to the edge position or the center position of the bed frame and corresponds to a position of the motor cover plate.

9. The electric lifting bed according to claim 8, wherein a number of the motor cover plates is two, and the motor cover plates are respectively connected to the head and the tail of the bed frame; and a number of the shielding plates is two, and the shielding plates are respectively disposed at the head and the tail of the bed frame.

10. The electric lifting bed according to claim 1, wherein a number of the driving motors is four, and each of the driving motors is in driving connection with the screw nut assembly in the corresponding lifting bed leg; or the number of the driving motors is two, and each of the driving motors is in driving connection with two screw nut assemblies in the corresponding lifting assembly through a transmission rod; or the number of the driving motors is one, and the driving motor is in driving connection with screw nut assemblies in the four lifting bed legs through transmission rods.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0025] FIG. 1 is a schematic structural diagram of an electric lifting bed according to some embodiments of the present application.

[0026] FIG. 2 is a transverse sectional view of an electric lifting bed according to some embodiments of the present application.

[0027] FIG. 3 is a longitudinal sectional view of an electric lifting bed according to some embodiments of the present application.

[0028] FIG. 4 is an enlarged structural view of part A in FIG. 3.

[0029] FIG. 5 is a schematic structural diagram of a bottom of an electric lifting bed according to some embodiments of the present application.

[0030] FIG. 6 is a schematic diagram illustrating an installation of a shielding plate of an electric lifting bed according to some embodiments of the present application.

[0031] FIG. 7 is a schematic structural diagram illustrating an installation of a shielding plate of an electric lifting bed from another angle according to some embodiments of the present application.

[0032] FIG. 8 is a schematic structural diagram of a shielding plate of an electric lifting bed according to some embodiments of the present application.

[0033] Description of drawing references: [0034] 1Bed frame, 100bed beam, 101row frame assembly, 2fence, 200bed head assembly, 201bed tail assembly, 3lifting assembly, 300lifting bed leg, 301transmission rod, 302driving motor, 303controller, 304manual controller, 4shielding plate, 400first connecting portion, 401, second connecting portion, 402shielding portion, 403clearance groove, 404first pivoting portion, 405second pivoting portion, 5motor cover plate.

DETAILED DESCRIPTION

[0035] First, those skilled in the art should understand that these implementations are merely used to explain the technical principles of the embodiments of this application, and are not intended to limit the protection scope of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0036] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, terms connected and connection should be understood broadly. For example, the connection may be a fixed connection, a detachable connection, or an integrated connection; may be a mechanical connection, or an electrical connection; may be a direct connection, or may be an indirect connection through an intermediate medium. A person of ordinary skill in the art may understand specific meanings of the foregoing terms in the embodiments of this application.

[0037] In this embodiment of this application, unless explicitly specified and defined otherwise, a first feature being on or under a second feature may be the first feature and the second feature being in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Also, the first feature being above, upon, and on the second feature may be the first feature being directly above or obliquely above the second feature, or merely indicates that the first feature is horizontally higher than the second feature. The first feature being below, beneath, and under the second feature may be the first feature being directly below or obliquely below the second feature, or merely indicates that the first feature is horizontally less than the second feature.

[0038] The following further describes this application in detail with reference to the accompanying drawings and specific embodiments.

[0039] Referring to FIG. 1 to FIG. 8, an embodiment of the present application discloses an electric lifting bed, structurally including a bed frame 1, a fence 2 connected to the bed frame 1, and two sets of lifting assemblies 3 respectively connected to a head and a tail of the bed frame 1. The bed frame 1 is a steel or steel-wood structure, and includes two internally-hollow bed beams 100 arranged along a length direction of the bed frame 1 and a row frame assembly 101 connected between the two bed beams 100. Each set of lifting assemblies 3 includes two lifting bed legs 300 and screw nut assemblies in the two lifting bed legs 300. The electric lifting bed includes at least one driving motor 302 disposed on a lower side of the bed frame 1, and the driving motor 302 is in driving connection with the screw nut assemblies for driving the lifting bed legs 300 to lift. In some examples, the electric lifting bed further includes a manual controller 304 and a controller 303, where the controller 303 is connected beside the lifting bed legs 300 of one set of lifting assemblies 3, and the manual controller 304 is installed on a location facilitating a user to touch, which is on the bed beam 100 on a side of the bed frame 1.

[0040] Specifically, in this embodiment, the electric lifting bed has two driving motors 302. That is, the electric lifting bed is driven by dual driving motors. The two driving motors 302 are provided to correspond to the two lifting assemblies 3, respectively, and each of the driving motors 302 is in driving connection with screw nut assemblies of two lifting bed legs 300 in the corresponding lifting assembly 3 through a transmission rod 301; in some examples, each lifting bed leg 300 has a screw nut assembly inside. Therefore, on each of the head and the tail of the bed frame 1, a transmission rod 301 and a driving motor 302 are provided and connected thereto.

[0041] In some examples, a power wiring of the controller 303 of the electric lifting bed of this embodiment extends downwards along one of the lifting bed legs 300 to connect with an indoor power so as to provide power to the electric lifting bed, and the controller 303 is connected to the head of the bed frame 1. The controller 303 is electrically connected with the driving motors 302 on the two lifting assemblies 3 through wiring harnesses. Specifically, the driving motor 302 on one set of lifting assemblies 3 is connected to the controller 303 through a wiring harness, where the wiring harness is arranged at the head of the bed frame 1. The driving motor 302 on the other set of lifting assemblies 3 is connected to the controller 303 through a wiring harness passing through an inner hole of the bed beam 100, where the wiring harness is at least partially arranged at the tail of the bed frame 1. The wiring harness of the manual controller 304 passes through a part of the bed beam 100 and is electrically connected to the controller 303 located at the bed head, where the wiring is also arranged at the head of the bed frame 1. In addition, other accessories of the electric lifting bed are also electrically connected to the controller 303. For example, a lamp below the bed frame 1 and a personnel detection unit on the bed frame 1 are also needed to electrically connect the controller 303 through a wiring harness, and the wiring harnesses and the wiring harness connectors thereof are both arranged at the head or the tail of the bed frame 1. Therefore, in addition to the driving motor 302 and the transmission rod 301 of the lifting assembly 3, the controller 303 and each wiring harness are also installed at the head or the tail of the bed frame 1, so that the user can see the transmission rod 301 of the lifting assembly 3 and the driving motor 302, the controller 303 and each wiring harness on the lifting assembly 3 under the bed frame 1. That is, the transmission rod 301, the driving motor 302, the controller 303 and each wiring harness of the lifting assembly 3 are exposed out of the bed frame 1, which has great potential safety hazards.

[0042] In order to prevent the transmission rod 301, the driving motor 302, the controller 303 and each wiring harness at the head or the tail of the bed frame 1 from being exposed, and also to facilitate wiring maintenance, referring to FIG. 3, FIG. 4 and FIG. 5, the electric lifting bed further includes at least one motor cover plate 5 and at least one shielding plate 4. The motor cover plate 5 is connected to an edge position of the bed frame, that is, the motor cover plate 5 is connected to the head or the tail of the bed frame 1 and covers the driving motor 302 corresponding to the lifting assembly 3. The shielding plate 4 is connected to the edge position of the bed frame, that is, the shielding plate 4 is arranged at the head or the tail of the bed frame 1 and corresponds to the motor cover plate 5. The shielding plate 4 is used for shielding the transmission rod 301, the driving motor 302 and the wiring harness arranged at the head or the tail of the bed frame 1, so that the transmission rod 301, the driving motor 302, the wiring harness and the wiring harness connector of the lifting assembly 3 are prevented from being exposed, improving the use safety of the electric lifting bed. In addition, when the whole wiring of the electric lifting bed is maintained, the wiring harness can be detected and the wiring harness connector can be plugged and pulled only by disassembling the shielding plate 4, so that the wiring maintenance operation is simple and convenient. Moreover, after wiring maintenance is completed, only the shielding plate 4 needs to be connected with the bed frame 1, which is very simple and labor-saving to install.

[0043] For example, referring to FIG. 4, FIG. 5, FIG. 6 and FIG. 7, there are two motor cover plates 5 respectively connected to the head and the tail of the bed frame 1, and there are two shielding plates 4 respectively arranged at the head and the tail of the bed frame 1. The motor cover plate 5 is a wooden plate and is laid between the two bed beams 100 of the bed frame 1, and top of the motor cover plate 5 is flush with the row frame assembly 101 of the bed frame 1. The motor cover plate 5 is above the lifting assembly 3 and vertically covers the transmission rod 301 of the lifting assembly 3 and the driving motor 302 on the lifting assembly 3. The shielding plate 4 is arranged below the bed frame 1, and a length direction of the shielding plate 4 is consistent with a width direction of the bed frame 1.

[0044] Further, in this embodiment, referring to FIG. 4, FIG. 6 and FIG. 7, the fence 2 includes a bed head assembly 200 connected to the head of the bed frame 1 and a bed tail assembly 201 connected to the tail of the bed frame 1. The bed head assembly 200 and the bed tail assembly 201 are respectively used for shielding the head and the tail of the bed frame 1. And the fence 2 further includes a front fence assembly located on a side of the bed frame 1 and a rear fence assembly located on the other side of the bed frame 1 in the length direction.

[0045] In this embodiment, the shielding plate 4 is a thin sheet with a relatively small thickness. Referring to FIG. 6, FIG. 7 and FIG. 8, the shielding plate 4 has a first connecting portion 400 connected to the motor cover plate 5 and a second connecting portion 401 disposed opposite to the first connecting portion 400. A shielding portion 402 is disposed between the first connecting portion 400 and the second connecting portion 401 of the shielding plate 4. A first pivoting portion 404 extending along a length direction of the shielding plate 4 is disposed between the shielding portion 402 and the first connecting portion 400. And a second pivoting portion 405 extending along the length direction of the shielding plate 4 is disposed between the shielding portion 402 and the second connecting portion 401. The first connecting portion 400, the shielding portion 402 and the second connecting portion 401 are disposed around and on an outside of a portion of the lifting assembly, that is, the transmission rod 301, the driving motor 302 and the wiring harness. In other words, the shielding plate 4 is composed of three parts of sheets, i.e., a first connecting portion 400, a shielding portion 402 and a second connecting portion 401. The first connecting portion 400 can rotate around the first pivoting portion 404 relative to the shielding portion 402, and the second connecting portion 401 can rotate around the second pivoting portion 405 relative to the shielding portion 402, so as to facilitate installation of the shielding plate 4. During the installation, the first connecting portion 400 and the second connecting portion 401 can rotate to a proper angle relative to the shielding portion 402 and are respectively connected with the motor cover plate 5 and the bottom of the fence 2 or the bed frame 1. Similarly, when the product is packaged for leaving the factory, the shielding plate 4 can be rotated and folded to reduce the package volume.

[0046] Further, in this embodiment, the first connecting portion 400 of the shielding plate 4 is connected to the top of the motor cover plate 5. The shielding portion 402 of the shielding plate 4 extends downwards along a height direction of the bed frame 1. The second connecting portion 401 extends horizontally towards the head or tail of the bed frame 1 to reach the bottom of the fence 2, and is connected to the bottom of the fence 2 through screws, so that the shielding plate 4, the motor cover plate 5 and the fence 2 form a shielding space for shielding the transmission rods 301, the driving motors 302, the wiring harnesses and the wiring harness connectors.

[0047] Specifically, in order to facilitate installation of the shielding plate 4 and disassembly of the shielding plate 4 for wiring maintenance, the first connecting portion 400 of the shielding plate 4 passes through the bed frame 1 from bottom to top and is detachably connected to the top of the motor cover plate 5. The second connecting portion 401 of the shielding plate 4 located at the head of the bed frame 1 is connected to the bottom of the bed head assembly 200 by screws. The second connecting portion 401 of the shielding plate 4 located at the tail of the bed frame 1 is connected to bottom of the bed tail assembly 201 by screws.

[0048] In some examples, the first connecting portion 400 is connected to the top of the motor cover plate 5 through a hook-and-loop fastener. That is, the hook-and-loop fastener is connected to the top of the motor cover plate 5, the first connecting portion 400 of the shielding plate 4 passes through the bed frame 1 from bottom to top, and the first connecting portion 400 horizontally covers top of the motor cover plate 5 and is connected to the hook-and-loop fastener on the motor cover plate 5. Then the second connecting portion 401 is turned around the second pivoting portion 405 so as to be horizontal. At this time, an outer side of the second connecting portion 401 is located at bottom of the fence 2 (for example, bed head assembly 200 or bed tail assembly 201). Then the second connecting portion 401 is fixedly connected to the bottom of the fence 2 through screws or other fasteners. When the shielding plate 4 is detached, the shielding plate 4 can be opened to expose the wiring harness only by disconnecting the first connecting portion 400 from the hook-and-loop fastener on the motor cover plate 5, which facilitates maintenance of the maintenance personnel. After the maintenance is completed, the first connecting portion 400 of the shielding plate 4 is covered again, that is, the first connecting portion 400 of the shielding plate 4 is adhered to the hook-and-loop fastener on the motor cover plate 5 again.

[0049] Further, in this embodiment, the shielding plate 4 is made of felt. The shielding plate 4 not only can be bonded with the hook-and-loop fastener on the motor cover plate 5, but also facilitates shaping or bending. And the first pivoting portion 404 and the second pivoting portion 405 on the shielding plate 4 may be indentations or grooves on the shielding plate 4. Thickness of the indentations or grooves is less than thickness of the shielding plate 4, facilitating rotation of the first connecting portion 400 and the second connecting portion 401.

[0050] In other embodiments, the shielding plate 4 may also have other structures, for example, the shielding plate includes a fabric outer sleeve and a base plate set inside the sleeve. And the base plate includes a first plate corresponding to the first connecting portion, a second plate corresponding to the shielding portion, and a third plate corresponding to the second connecting portion. The outer sleeve is sewn with a first stitching portion between the first plate and the second plate, and the outer sleeve is sewn with a second stitching portion between the second plate and the third plate. The first stitching portion forms a first pivoting portion, and the second stitching portion forms a second pivoting portion. In this way, it is also convenient to bond with the hook-and-loop fastener on the motor cover plate, and it is convenient to rotatably mount the first connecting portion and the second connecting portion of the shielding plate.

[0051] In order to make the shielding plate 4 more tightly combined with the bed frame 1, referring to FIG. 7 and FIG. 8, in this embodiment, the first connecting portion 400 of the shielding plate 4 is provided with a clearance groove 403 for accommodating a longitudinal rod of the bed frame 1, and the clearance groove 403 at least partially extends to the shielding portion 402. Therefore, after the shielding plate 4 is installed, the first connecting portion 400 of the shielding plate 4 is parallel to a top surface of the bed frame 1, the shielding portion 402 is parallel to a height direction of the bed frame 1, and the second connecting portion 401 of the shielding plate 4 is parallel to the first connecting portion 400. In this way, not only can the transmission rod 301, the driving motor 302, the wiring harness and the controller 303 be better shielded, but also the bottom of the bed frame 1 is more tidy and high in aesthetics.

[0052] In some embodiments, the first connecting portion 400 may be removed from the shielding plate 4, that is, the shielding plate 4 only has the shielding portion 402 connected to the motor cover plate 5 and the second connecting portion 401 connected to the shielding portion 402. A second pivoting portion 405 extending along a length direction of the shielding plate 402 is disposed between the shielding portion 402 and the second connecting portion 401. And the shielding portion 402 and the second connecting portion 401 are disposed around and on an outside of a portion of the lifting assembly 3, that is, the transmission rod, the driving motor 302, and the wiring harness. Specifically, during connection, the shielding portion 402 of the shielding plate 4 is connected with a side (or side portion) of the motor cover plate 5. And the second connecting portion 401 rotates relative to the shielding portion 402 around the second pivoting portion 405 to reach below the fence 2 or the bed frame 1 and is connected with the bottom of the fence or the bed frame 1. Similarly, in this embodiment, the shielding portion 402 of the shielding plate 4 is connected with the side (or side portion) of the motor cover plate 5 through a hook-and-loop fastener, and the second connecting portion 401 is connected with the bottom of the fence 2 or the bed frame 1 through screws.

[0053] In some embodiments, the electric lifting bed may also have only one driving motor, i.e., driven by a single driving motor. The driving motor is installed at a middle position of the bed frame in the length direction, and the driving motor is connected to the screw nut assemblies in the four lifting bed legs through a plurality of transmission rods. Specifically, transmission rods in driving connection with the screw nut assemblies in the lifting bed legs of the two lifting assemblies are respectively connected in the two bed beams of the bed frame. An intermediate transmission rod is in transmission connection between the two transmission rods, where the intermediate transmission rod is in transmission connection with the driving motor. The driving motor drives the intermediate transmission rod to rotate, and the two lifting assemblies are driven to lift through the two transmission rods in the two bed beams. In the electric lifting bed driven by the single driving motor, one motor cover plate and one shielding plate are arranged. And the motor cover plate is arranged in the middle of the bed frame and covers the driving motor, that is, the motor cover plate is connected to a center position of the bed frame, and the shielding plate is also connected to the center position of the bed frame and corresponds to a position of the motor cover plate.

[0054] In some embodiments, the electric lifting bed may also have four driving motors, i.e., driven by four driving motors, and each driving motor is in driving connection with a screw nut assembly in a corresponding lifting bed leg. That is, there is no transmission rod between the two lifting bed legs of the electric lifting bed, but there are still more wiring harnesses gathered between the two lifting bed legs of each set of lifting assemblies, so that there are two motor cover plates and two shielding plates of the electric lifting bed. And the mounting manner of the two motor cover plates and the two shielding plates is consistent with the mounting manner of the electric lifting bed driven by the dual driving motors, which is not repeatedly described in this embodiment.

[0055] In the description of the embodiments of this application, it should be noted that, in the description of this application, terms such as terms inner and outer that indicate directions or positional relationships are based on directions or positional relationships shown in the accompanying drawings. This is merely for ease of description, rather than indicating or implying that the apparatus or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0056] In the description of this application, reference terms one embodiment, some embodiments, in this embodiment, a specific example, some examples, or the like are intended to mean that specific features, mechanisms, materials, or features described in connection with this embodiment or example are included in at least one embodiment or example of this application. In this specification, schematic expressions of the above terms are not necessarily directed to the same embodiments or examples. Moreover, the specific features, mechanisms, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradicting each other.

[0057] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceivable by those skilled in the art within the technical scope disclosed by the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be defined by the protection scope of the claims.