BENDABLE ELASTIC CUSHION AND ADJUSTMENT MECHANISM THEREOF

Abstract

An adjustment mechanism of a bendable elastic cushion includes a base, a backrest frame, and one or more curved guide rails. The one or more curved guide rails are fixedly connected to the base, and the backrest frame is slidably connected to the one or more curved guide rails, so as to change an angle between the backrest frame and a horizontal plane by sliding the backrest frame along a direction in which the one or more curved guide rails extend.

Claims

1. An adjustment mechanism of a bendable elastic cushion, comprising: a base, a backrest frame, and one or more curved guide rails, wherein: the one or more curved guide rails are fixedly connected to the base, and the backrest frame is slidably connected to the one or more curved guide rails, so as to change an angle between the backrest frame and a horizontal plane by sliding the backrest frame along a direction in which the one or more curved guide rails extend.

2. The adjustment mechanism of the bendable elastic cushion according to claim 1, comprising: one or more elastic locking members for fixing one or more relative positions of the backrest frame and the one or more curved guide rails, wherein: the one or more elastic locking members are configured to be switched from a locked state to an unlocked state due to an external force, when the one or more elastic locking members are in the locked state, the backrest frame and the one or more elastic locking members are interlocked with each other in the direction in which the one or more curved guide rails extend, and when the one or more elastic locking members are in the unlocked state, the backrest frame and the one or more elastic locking members are released from an interlocking connection in the direction in which the one or more curved guide rails extend.

3. The adjustment mechanism of the bendable elastic cushion according to claim 2, wherein: each of the one or more elastic locking members comprises a positioning pin and a spring, a first end of the spring abuts the base to form a fixed end, a second end of the spring abuts the positioning pin to form a movable end, and when the one or more elastic locking members are in the unlocked state, the positioning pin compresses the spring to accumulate an elastic reset force.

4. The adjustment mechanism of the bendable elastic cushion according to claim 3, wherein: the one or more curved guide rails are two curved guide rails, the two curved guide rails are arranged at intervals along a width direction of the base, the one or more elastic locking members are two elastic locking members in a one-to-one correspondence with the two curved guide rails, two sides of the positioning pins of the two elastic locking members facing each other are connected by a release rope, and the release rope is configured to be pulled by a second external force to drive the positioning pins to compress the springs, so that the two elastic locking members are moved to be in the unlocked state.

5. The adjustment mechanism of the bendable elastic cushion according to claim 1, wherein: the base comprises a first part configured to be placed on ground and a second part extending away from the first part, and the second part has a clamping chamber for accommodating the one or more curved guide rails.

6. The adjustment mechanism of the bendable elastic cushion according to claim 4, wherein: the backrest frame is in a door-shape, and two vertical rods of the backrest frame are respectively slidably connected to the two curved guide rails.

7. The adjustment mechanism of the bendable elastic cushion according to claim 1, wherein: the backrest frame comprises a walking mechanism that slides with the one or more curved guide rails.

8. The adjustment mechanism of the bendable elastic cushion according to claim 7, wherein: the walking mechanism is located in the one or more curved guide rails and comprises one or more rollers that are matched with an inner walls of the one or more curved guide rails.

9. The adjustment mechanism of the bendable elastic cushion according to claim 7, wherein: the walking mechanism is sleeved on outsides of the one or more curved guide rails, and the walking mechanism comprises one or more first rollers cooperating with an upper surface of the one or more curved guide rails and one or more second rollers cooperating with a lower surface of the one or more curved guide rails.

10. A bendable elastic cushion equipped with the adjustment mechanism according to claim 1.

11. The bendable elastic cushion according to claim 10, comprising: a soft cushion, and a plurality of elastic units arranged in an array, wherein: the plurality of elastic units are divided into a mattress area arranged on the base and a backrest area configured to move along with the backrest frame according to areas where the mattress area and the backrest area are located.

12. The bendable elastic cushion according to claim 11, wherein: two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area are connected by a center distance adjustment mechanism, when the angle between the backrest frame and the horizontal plane is increased, the center distance adjustment mechanism drives a center distance between the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area to increase, and when the angle between the backrest frame and the horizontal plane is decreased, the center distance adjustment mechanism drives the center distance between the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area to decrease.

13. The bendable elastic cushion according to claim 12, wherein: the backrest area is divided into a waist sub-area and a back sub-area, the two adjacent rows of the plurality of elastic units respectively in the mattress area and the waist sub-area are connected by the center distance adjustment mechanism, and two adjacent rows of the plurality of elastic units respectively in the waist sub-area and the back sub-area are connected by a second center distance adjustment mechanism.

14. The bendable elastic cushion according to claim 12, wherein: the center distance adjustment mechanism comprises a groove provided on a first row of the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area and a sliding block provided on a second row of the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area, the groove extends along a direction of the center distance between the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area, and the sliding block is configured to slide along the groove to change the center distance between the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area.

15. The bendable elastic cushion according to claim 14, wherein: the center distance adjustment mechanism comprises connecting straps respectively fixedly disposed on the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area and extending along a width direction of the plurality of elastic units, two ends of each of the connecting straps protrude outward from two sides of one or more corresponding elastic units of the plurality of elastic units along the width direction of the plurality of elastic units, a first end of each of the connecting straps is provided with the sliding block, a second end of each of the connecting straps is provided with the groove, between the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area, the sliding block of one elastic unit of the second row of the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area is placed in the groove of another elastic unit of the first row of the two adjacent rows of the plurality of elastic units respectively in the mattress area and the backrest area, the sliding block has translational freedom in a direction extending along the groove, and the sliding block has rotational freedom around an axial direction of the sliding block.

16. The bendable elastic cushion according to claim 11, wherein: the base has a plane for placing the plurality of elastic units, and one of: the one or more curved guide rails are located above the plane of the base, or the one or more curved guide rails are two curved guide rails and a part of the two curved guide rail is located above the plane.

17. The bendable elastic cushion according to claim 10, comprising: a push-pull mechanism for pushing or pulling the backrest frame to move along the one or more curved guide rails.

18. The bendable elastic cushion according to claim 17, wherein: the push-pull mechanism is an electric push rod or a controllable gas spring.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG. 1 is a schematic diagram of a bendable elastic cushion in a flat lying state in Embodiment 1 of the present disclosure.

[0028] FIG. 2 is a schematic diagram of the bendable elastic cushion in a backrest state in Embodiment 1 of the present disclosure.

[0029] FIG. 3 is a schematic diagram of elastic units in Embodiment 1 of the present disclosure connected by a center distance adjustment mechanism.

[0030] FIGS. 4 and 5 are schematic diagrams of an angle adjustment process of a backrest frame in Embodiment 1 of the present disclosure.

[0031] FIG. 6 is a schematic diagram of an elastic locking member in Embodiment 1 of the present disclosure.

[0032] FIG. 7 is a top view of a base in Embodiment 1 of the present disclosure.

[0033] FIG. 8 is a schematic diagram of the backrest frame in Embodiment 1 of the present disclosure.

[0034] FIG. 9 is a schematic diagram of a bendable elastic cushion in a flat lying state in Embodiment 2 of the present disclosure.

[0035] FIG. 10 is a schematic diagram of the bendable elastic cushion in a backrest state in Embodiment 2 of the present disclosure.

[0036] FIG. 11 is a schematic diagram of an adjustment mechanism in Embodiment 2 of the present disclosure.

[0037] FIG. 12 is a schematic diagram of a bendable elastic cushion in a flat lying state in Embodiment 3 of the present disclosure.

[0038] FIG. 13 is a schematic diagram of the bendable elastic cushion in a backrest state in Embodiment 3 of the present disclosure.

[0039] FIGS. 14 and 15 are schematic diagrams of an angle adjustment process of a backrest frame in Embodiment 3 of the present disclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making creative work are within the scope of protection of the present disclosure.

[0041] In the description of the present disclosure, it should be noted that, unless otherwise clearly stipulated and limited, the terms installed, provided with, sleeved, connected, etc. should be understood in a broad sense. For example, connection can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

Embodiment 1

[0042] Referring to FIGS. 1 to 8, this embodiment provides a bendable elastic cushion 1, and the bendable elastic cushion 1 is equipped with an adjustment mechanism 2, so that a bending angle of the bendable elastic cushion 1 can be adjusted by the adjustment mechanism 2.

[0043] The adjustment mechanism 2 comprises a base 21, a backrest frame 22, and one or more curved guide rails 23. The one or more curved guide rails 23 are fixedly connected to the base 21, and the backrest frame 22 is slidably connected to the one or more curved guide rails 23, so as to change an angle between the backrest frame 22 and a horizontal plane by sliding the backrest frame 22 along a direction in which the one or more curved guide rails 23 extend.

[0044] The bendable elastic cushion 1 comprises a soft cushion 11 and a plurality of elastic units arranged in an array. The plurality of elastic units are divided into a mattress area 12 arranged on the base 21 and a backrest area 13 moving along with the backrest frame 22 in areas where the mattress area 12 and the backrest area 13 are located. In this way, when the backrest frame 22 slides along the direction in which the one or more curved guide rails 23 extend, a first group of the plurality of elastic units in the backrest area 13 also moves relative to a second group of the plurality of elastic units in the mattress area 12, thereby achieving bending of the bendable elastic cushion 1.

[0045] To avoid the first group of the plurality of elastic units in the backrest area 13 from interfering with the second group of the plurality of elastic units in the mattress area 12 during movement relative to the second group of the plurality of elastic units in the mattress area 12, two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 are connected by a center distance adjustment mechanism 14. When the angle between the backrest frame 22 and the horizontal plane becomes larger, the center distance adjustment mechanism 14 drives a center distance between the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 to increase. When the angle between the backrest frame 22 and the horizontal plane becomes smaller, the center distance adjustment mechanism 14 drives the center distance between the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 to decrease. In this way, when the bendable elastic cushion 1 is bent, that is, when the bendable elastic cushion 1 switches from a lying mode to a backrest mode, a distance between adjacent elastic units of the plurality of elastic units in the mattress area 12 and the backrest area 13 becomes larger, thereby providing a space for bending. When the adjacent elastic units of the plurality of elastic units in the mattress area 12 and the backrest area 13 are in a same plane, that is, when the bendable elastic cushion 1 is in the lying mode, the center distance between the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 will also decrease accordingly. This can avoid a feeling of collapse caused by a large center distance of the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 when the bendable elastic cushion 1 is in a flat state, thereby effectively improving a user experience.

[0046] In this embodiment, to adjust the center distance, the center distance adjustment mechanism 14 comprises a groove 141 provided on a first row of the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 and a sliding block 142 provided on a second row of the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13. The groove 141 extends along a direction of the center distance between the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13, and the sliding block 142 slides along the groove 141 to change the center distance between the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13. Since the center distance adjustment mechanism 14 is directly provided on the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13, and the first group of the plurality of elastic units in the backrest area 13 moves along with sliding of the backrest frame 22, during movement of the first group of the plurality of elastic units in the backrest area 13, the sliding block 142 correspondingly slides in the groove 141, thereby increasing or decreasing the center distance, and the user does not need to adjust the center distance separately, which makes the operation more convenient and smooth.

[0047] In order to further subdivide different areas, the backrest area 13 in this embodiment is divided into a waist sub-area 131 and a back sub-area 132. The two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 (i.e., the waist sub-area 131) are connected by the center distance adjustment mechanism 14. Two adjacent rows of the plurality of elastic units in the waist sub-area 131 and the back sub-area 132 are connected by a second center distance adjustment mechanism 14a, which has a same structure as the center distance adjustment mechanism 14. In this way, a center distance between the waist sub-area 131 and the back sub-area 132 can also be adjusted as the bending angle increases.

[0048] The center distance adjustment mechanism 14 in this embodiment is specifically configured as follows. The center distance adjustment mechanism 14 comprises connecting straps 143 respectively fixedly disposed on the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 and extending along a width direction of the plurality of elastic units (i.e., X-axis shown in FIG. 3), and two ends of each of the connecting straps 143 protrude outward from two sides of one or more corresponding elastic units of the plurality of elastic units along the width direction of the plurality of elastic units. A first end of each of the connecting straps 143 is provided with the sliding block 142, and a second end of each of the connecting straps 143 is provided with the groove 141. Between the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13, the sliding block 142 of one elastic unit of the second row of the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13 is placed in the groove 141 of another elastic unit of the first row of the two adjacent rows of the plurality of elastic units in the mattress area 12 and the backrest area 13. The sliding block 142 has translational freedom in a direction extending along the groove 141, and the sliding block 142 has rotational freedom around an axial direction of the sliding block 142.

[0049] The above structure can ensure that the first group of the plurality of elastic units in the backrest area 13 will not interfere with the second group of the plurality of elastic units in the mattress area 12 during a process of adjusting the bending angle. To ensure that the bendable elastic cushion 1 can be fixed at any bending angle, the adjustment mechanism 2 further comprises one or more elastic locking members 24 for fixing relative positions of the backrest frame 22 and the one or more curved guide rails 23. The one or more elastic locking members 24 can be switched from a locked state to an unlocked state due to an external force. When the one or more elastic locking members 24 are in the locked state, the backrest frame 22 and the one or more elastic locking members 24 are interlocked with each other in the direction in which the one or more curved guide rails 23 extend. When the one or more elastic locking members 24 are in the unlocked state, the backrest frame 22 and the one or more elastic locking members 24 are released from an interlocking connection in the direction in which the one or more curved guide rails 23 extend.

[0050] In this embodiment, each of the one or more elastic locking members 24 comprises a positioning pin 241 and a spring 242. A first end of the spring 242 abuts the base 21 to form a fixed end, and a second end of the spring 242 abuts the positioning pin 241 to form a movable end. When the one or more elastic locking members 24 are in the unlocked state, the positioning pin 241 compresses the spring 242 to accumulate elastic reset force.

[0051] To increase stability during angle adjustment, the one or more curved guide rails 23 are two curved guide rails 23, and the two curved guide rails 23 are arranged at intervals along a width direction of the base 21. The one or more elastic locking members 24 are in a one-to-one correspondence with the one or more curved guide rails 23 (i.e., the one or more elastic locking members 24 are two elastic locking members 24). Two sides of the positioning pins 241 of the two elastic locking members 24 facing each other are connected by a release rope 25, and the release rope 25 is configured to be pulled by an external force to drive the positioning pins 241 to compress the springs 242, so that the two elastic locking members 24 are moved to be in the unlocked state. Corresponding to the two curved guide rails 23, the backrest frame 22 in this embodiment has a door-shape, and two vertical rods 221 of the backrest frame 22 are respectively slidably connected to the two curved guide rails 23.

[0052] To install the plurality of elastic units and the two curved guide rails 23, the base 21 comprises a first part 211 configured to be placed on ground and a second part 212 extending away from the first part 211, and the first part 211 has a plane for placing the plurality of elastic units. The second part 212 has a clamping chamber for accommodating the two curved guide rails 23. In this embodiment, parts of the two curved guide rails 23 are located above the plane. In this way, a radius of each of the two curved guide rails 23 can be larger, the adjustment angle changes slowly, and fine adjustment can be easily performed.

[0053] To achieve a sliding connection between the backrest frame 22 and the two curved guide rails 23, in this embodiment, the backrest frame 22 comprises a walking mechanism 27 that slides with the two curved guide rails 23. Specifically, the walking mechanism 27 is located in the two curved guide rails 23 and comprises rollers 271 that are matched with inner walls of the two curved guide rails 23.

[0054] In addition, the present embodiment further comprises a push-pull mechanism 26 for pushing or pulling the backrest frame 22 to move along the two curved guide rails 23, so that the backrest frame 22 can be adjusted by the push-pull mechanism 26 without manual adjustment. The push-pull mechanism can be an electric push rod or a controllable gas spring widely used in the existing techniques.

Embodiment 2

[0055] Referring to FIGS. 9 to 11, the difference between this embodiment and Embodiment 1 is that the two curved guide rails 23 in this embodiment are located above the plane of the base 21 on which the plurality of elastic units are placed, so that the two curved guide rails 23 can be hidden inside an array defined by the plurality of elastic units, which is more beautiful. The disadvantage is that the radius of each of the two curved guide rails 23 is relatively small, and the change extent of the adjusting angle is relatively large.

Embodiment 3

[0056] Referring to FIGS. 12 to 15, the difference between this embodiment and Embodiment 1 is that the walking mechanism 27 in this embodiment is sleeved on outsides of the two curved guide rails 23, and the walking mechanism 27 comprises one or more first rollers 272 cooperating with upper surfaces of the two curved guide rails 23 and one or more second rollers 273 cooperating with lower surfaces of the two curved guide rails 23.

[0057] The above description is only a preferred specific implementation mode of the present disclosure, and does not limit the patent scope of the present disclosure. Any technical equivalent changes made using the contents of the present disclosure specification shall fall within the protection scope of the present disclosure.