Self-adaptive backrest elastic supporting piece

Abstract

The utility model discloses a self-adaptive backrest elastic supporting piece which comprises an elastic piece, a first connecting piece is formed at the upper end of the elastic piece and used for being connected with a backrest, a second connecting piece is formed at the lower end of the elastic piece and used for being connected with a connecting base, and the two ends of the elastic piece comprise an upper plate and a lower plate. A plurality of laminations are arranged between the upper plate and the lower plate, first connecting blocks and second connecting blocks are arranged between the laminations at intervals, the first connecting blocks and the second connecting blocks are arranged on the two side faces of the laminations respectively, and the first connecting blocks and the second connecting blocks are distributed in a staggered mode at intervals. The problem that hard connection between the backrest and the connecting seat is uncomfortable is solved, the first connecting blocks and the second connecting blocks are sequentially arranged between the adjacent laminations at intervals, so that the laminations deform with the first connecting blocks or the second connecting blocks as fulcrums, the whole supporting piece can deform at any angle, and the comfort of the backrest is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to an adaptive backrest elastic support member. Background Art

[0002] In order to adjust the front and rear position of the backrest, the existing seats generally use a sliding plug-in to drive the backrest to move, such as the backrest adjustment mechanism provided in patent CN202320464076.4, which controls the extension length of the backrest by sliding the connecting seat and the transverse sliding sleeve, thereby adjusting the position of the backrest;

[0003] The connecting seat is connected to the backrest by bolts, and the backrest can be slightly deformed by wrapping rubber pads on the outside of the bolts. When supporting the user's back, the backrest is not soft and comfortable enough because it is connected and supported by bolts. Therefore, in order to improve the comfort of using the backrest, an adaptive backrest elastic support is designed. Utility Model Content

[0004] The purpose of the utility model is to provide an adaptive elastic support member for the backrest, which is deformed by stacking the laminations to deform the support member as a whole, thereby further changing the hard support between the backrest and the connecting seat, making the support between the backrest and the connecting seat softer and more comfortable, and the deformation of the support member enables the backrest to fit completely on the back, thereby improving the comfort of the backrest.

[0005] The utility model provides the following technical solutions: an adaptive backrest elastic support member, comprising an elastic member, a first connecting member is formed at the upper end of the elastic member, the first connecting member is used to be connected to the backrest, a second connecting member is formed at the lower end of the elastic member, the second connecting member is used to be connected to a connecting seat, the two ends of the elastic member comprise an upper plate and a lower plate, a plurality of laminates are arranged between the upper plate and the lower plate, a first connecting block and a second connecting block are arranged between the laminates at intervals, the first connecting block and the second connecting block are respectively arranged on both side surfaces of the laminates, and the first connecting block and the second connecting block are staggeredly distributed in interlayers.

[0006] In order to increase the variability of the laminate and make the laminate bear force evenly, the first connecting block and the second connecting block are distributed in a cross shape.

[0007] In order to allow the laminate to deform, a mounting hole is provided at the center of each laminate.

[0008] In order to prevent the uppermost lamination from being deformed and causing the elastic member to break, an intermediate connecting block is formed on the lower surface of the uppermost lamination.

[0009] In another embodiment, in order to limit the deformation stroke of the support member, a limiting column is formed on the intermediate connecting block, the limiting column is located in the mounting hole, and a gap is left between the limiting column and the inner wall of the laminate.

[0010] In another embodiment, the first connecting block includes a middle connecting point, and symmetrically distributed semicircular clamping plates are formed on both end surfaces of the connecting point, and both ends of the semicircular clamping plates are respectively connected to adjacent laminations.

[0011] In order to enhance the connection strength between the first connecting member and the backrest, a plug hole is provided at the center of the first connecting member, and the middle connecting block is formed at the lower end of the plug hole.

[0012] In order to facilitate the connection between the second connecting member and the connecting seat, the second connecting member includes a fixing block, which is formed at the lower end of the lowest stack. The lower end of the fixing block is also formed with two symmetrically arranged insertion strips, and one end face of the insertion strip is located on the outside of the fixing block.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] (1) By sequentially arranging the first connecting block and the second connecting block between adjacent laminates, the laminates are deflected and deformed with the first connecting block or the second connecting block as a fulcrum, so that the entire support member is deformed, thereby improving the original hard support between the backrest and the connecting seat, making the connection between the backrest and the connecting seat softer, and the deformation of the support member can change the position of the cushion, thereby improving the comfort of the backrest;

[0015] (2) This component is an injection molded part that can be molded by mold injection. Compared with the original structural parts, it has high production efficiency, can be produced in large quantities, and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the elastic support member of the utility model;

[0018] Figure 2 It is a front view of the elastic support member of the utility model;

[0019] Figure 3 It is a side view of the elastic support member of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the elastic support member of the utility model from another perspective;

[0021] Figure 5 This is an installation position diagram of the elastic support member of the utility model;

[0022] Figure 6 It is a schematic diagram of the internal structure of the second embodiment of the utility model;

[0023] Figure 7 It is a three-dimensional diagram of the third embodiment of the utility model;

[0024] Figure 8 It is a three-dimensional diagram of another viewing angle of the third embodiment of the utility model;

[0025] In the figure: 1. first connecting member; 11. plug-in hole; 2. elastic member; 21. laminate; 22. first connecting block; 23. second connecting block; 24. middle connecting block; 25. mounting hole; 27. upper plate; 28. lower plate; 29. ​​limiting column; 3. second connecting member; 31. fixing block; 32. insert; 4. backrest; 5. elastic support member; 6. connecting seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] See also Figures 1 to 3 and Figure 5The utility model provides a technical solution: an adaptive backrest elastic support member 5, including an elastic member 2, a first connecting member 1 is formed on the upper end of the elastic member 2, and the first connecting member 1 is used to connect with the backrest 4, and a second connecting member 3 is formed on the lower end of the elastic member 2, and the second connecting member 3 is used to connect with the connecting seat 6, and the two ends of the elastic member 2 include an upper plate 27 and a lower plate 28, and a plurality of laminates 21 are arranged between the upper plate 27 and the lower plate 28, and a first connecting block 22 and a second connecting block 23 are arranged between the laminates 21, and the first connecting block 22 and the second connecting block 23 are arranged between the plurality of laminates 21. In this embodiment, the first connecting block 22 and the second connecting block 23 are respectively arranged on the upper and lower side surfaces of the laminate 21, and a layer between the laminates 21 is the first connecting block 22, and the next layer is the first connecting block 23. The first connecting block 22 and the second connecting block 23 are distributed between the plurality of laminates 21 in an alternating order. The first connecting block 22 or the second connecting block 23 divides the gap between adjacent laminates 21 into two parts. The laminate 21 deflects with the first connecting block 22 or the second connecting block 23 as a fulcrum, so that when one part of the gap is squeezed, the other part will expand, thereby deforming the entire elastic member 2, and the deformation angle is determined by the pressure received, resulting in the elastic member 2 being able to deform at any angle, so that the backrest 4 fits completely on the back, thereby improving the comfort of the backrest. At the same time, the structure is an injection molded part with high production efficiency and can be mass-produced. Compared with the existing structural parts composed of rubber sheets, the labor cost is reduced.

[0029] like Figure 2 and 3 As shown, the first connecting block 22 and the second connecting block 23 are cross-distributed, so that the first connecting block 22 and the second connecting block 23 are cross-staggered on the laminate 21, so that the laminate 21 is evenly stressed when deformed, thereby extending the service life of the elastic support member 5 and being able to change the deformation direction of the laminate 21, so that the elastic support member 5 can be stretched or compressed in any direction.

[0030] like Figure 4 As shown, a mounting hole 25 is opened at the center of each laminate 21, which reduces the rigidity of the laminate 21, makes the laminate 21 more prone to deformation, and further improves the supporting flexibility of the elastic support member 5.

[0031] like Figure 4 As shown, an intermediate connecting block 24 is formed on the lower surface of the upper plate 27 , and the intermediate connecting block 24 enhances the rigidity of the uppermost lamination 21 , prevents the uppermost lamination 21 from being deformed, and further prevents the uppermost lamination 21 from being broken.

[0032] like Figure 1 and 4As shown, a plug hole 11 is provided at the center of the first connecting member 1 , and an intermediate connecting block 24 is formed at the lower end of the plug hole 11 . The intermediate connecting block 24 enhances the rigidity of the first connecting member 1 and the connection strength between the first connecting member 1 and the backrest 4 .

[0033] The second connecting member 3 includes a fixing block 31, which is formed at the lower end of the lower plate 28. Two symmetrically arranged inserting strips 32 are also formed at the lower end of the fixing block 31. One end surface of the inserting strip 32 is located on the outer side of the fixing block 31. The second connecting member 3 is plugged into the connecting seat 6 through the inserting strip 32. The elastic support member 5 and the connecting seat 6 are easy to install, thereby improving the installation efficiency.

[0034] Embodiment 2

[0035] like Figure 6 As shown, other structures are the same as those in the first embodiment, except that a limiting column 29 is formed on the middle connecting block 24, and the limiting column 29 is located in the mounting hole 25. A gap is left between the limiting column 29 and the inner wall of the stack 21. The limiting column 29 is used to limit the deformation stroke to avoid a large twisting of the stack 21 under pressure, thereby reducing the possibility of the stack 21 being torn and extending the service life.

[0036] Embodiment 3

[0037] like Figure 7 and 8 As shown, in the present embodiment, the first connecting block 22 and the second connecting block 23 have the same structure. The first connecting block 22 includes a middle connecting point, and symmetrically distributed semicircular splints are formed on both end surfaces of the connecting point. The two ends of the semicircular splints are respectively connected to the adjacent laminations 21. The elasticity of the semicircular splints is used to deform the support as a whole. The gap between the semicircular splints is too large, and it is easy to insert fingers into it, causing safety hazards.

[0038] Furthermore, the upper plate 27 and the laminate 21 are connected by a folding plate, and the connection is in a "π" shape, and the lower plate 28 and the laminate 21 are connected, and the connection is in an "I" shape, both of which improve the connection strength, avoid the connection between the upper plate 27 and the laminate 21 and the connection between the lower plate 28 and the laminate 21 from being torn, and extend the service life.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An adaptive backrest elastic support member, comprising an elastic member, characterized in that: A first connecting piece is formed at the upper end of the elastic piece, and the first connecting piece is used to be connected to the backrest. A second connecting piece is formed at the lower end of the elastic piece, and the second connecting piece is used to be connected to the connecting seat. The two ends of the elastic piece include an upper plate and a lower plate, and a plurality of laminates are arranged between the upper plate and the lower plate. The first connecting block and the second connecting block are arranged between the laminates at intervals. The first connecting block and the second connecting block are respectively arranged on both side surfaces of the laminate, and the first connecting block and the second connecting block are staggered in the interlayer distribution.

2. The adaptive backrest elastic support member according to claim 1, characterized in that: The first connecting blocks and the second connecting blocks are arranged in a cross shape.

3. The adaptive backrest elastic support member according to claim 1, characterized in that: The centers of the laminations are all provided with mounting holes.

4. The adaptive backrest elastic support member according to claim 1, characterized in that: An intermediate connecting block is formed on the lower surface of the upper plate.

5. The adaptive backrest elastic support member according to claim 4, characterized in that: A limiting column is formed on the middle connecting block, and the limiting column is located in the mounting hole, and a gap is left between the limiting column and the inner wall of the stack.

6. The adaptive backrest elastic support member according to claim 1, characterized in that: The first connecting block includes a middle connecting point, and symmetrically distributed semicircular clamping plates are formed on both end surfaces of the connecting point, and both ends of the semicircular clamping plates are respectively connected to adjacent laminates.

7. The adaptive backrest elastic support member according to claim 4, characterized in that: A plug hole is provided at the center of the first connecting member, and the middle connecting block is formed at the lower end of the plug hole.

8. The adaptive backrest elastic support member according to claim 1, characterized in that: The second connecting member comprises a fixing block, which is formed at the lower end of the lower plate. The lower end of the fixing block is also formed with two symmetrically arranged inserting strips, and one end surface of the inserting strip is located outside the fixing block.

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