Locking structure and seat

Abstract

The utility model provides a locking structure and a seat, and aims to solve the technical problems that armrests of the conventional seat cannot be adjusted and the use requirements of users cannot be met. The utility model discloses a locking structure and a seat, which comprise a working plate, a first locking piece is arranged on the working plate, an armrest is arranged on the working plate in an adjustable lifting manner, a second locking piece is rotatably arranged at one end of the armrest, a stress plate is fixedly arranged between the second locking piece and the armrest, and the stress plate is fixedly connected with the working plate. The second locking piece is rotationally connected with the stress plate in a clamped mode, the second locking piece is connected with the first locking piece in a clamped mode, the handrail cannot move in the length direction of the working plate, the upper portion of the working plate is wide, the lower portion of the working plate is narrow, the height of the handrail can be adjusted only by rotating the second locking piece, and convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair technical field especially relates to a locking structure and seat. BACKGROUND

[0002] The chair is a kind of seat with backrest, some also have armrest.

[0003] The chair is composed of multiple components, and generally has two armrests.Most of the existing armrests are fixedly installed on the two sides of the chair back, and the chair with this structure cannot be adjusted, which is difficult to meet the various application needs of users.In addition, it is inconvenient to install and transport. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a locking structure and seat to solve the technical problems that the existing chair armrest cannot be adjusted and cannot meet the use needs of users.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A locking structure and seat, comprising a workboard, a first locking piece is arranged on the workboard, an armrest is adjustably and vertically arranged on the workboard, a second locking piece is rotatably arranged at one end of the armrest, a stress plate is fixedly arranged between the second locking piece and the armrest, the second locking piece is rotatably connected with the stress plate, and the second locking piece is connected with the first locking piece, so that the armrest cannot move along the length direction of the workboard, and the workboard is wide at the top and narrow at the bottom.

[0007] Working principle:

[0008] The armrest is adjusted along the length direction of the workboard, and when the height is adjusted to the required height, the second locking piece is rotated, the second locking piece is connected with the stress plate after being contacted, the second locking piece is connected with the first locking piece, so that the armrest cannot be vertically moved, and the armrest is fixed.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. The user can adjust the height of the armrest according to the use needs;

[0011] 2. The height of the armrest can be adjusted by rotating the second locking piece, and the adjustment method is simple and convenient;

[0012] 3. When not in use, the armrest can be removed from one end along the length direction of the workboard. DRAWINGS

[0013] Figure 1 It is a sectional structure schematic view of the utility model embodiment.

[0014] Figure 2 For Figure 1 part of the structure enlarged view;

[0015] Figure 3 For Figure 1 part of the structure bottom view;

[0016] Figure 4 For another view of the structure of the second locking element schematic diagram.

[0017] In the above drawings: 10, the receiving groove; 11, the extension end; 12, the first limiting hole; 13, the force plate; 14, the second limiting hole; 15, the second force end; 16, the first force end; 17, the first clamping groove; 18, the third clamping groove; 19, the dial; 20, the protrusion; 21, the work plate; 22, the third limiting hole; 23, the fourth limiting hole; 24, the fifth clamping groove; 25, the clamping block; 26, the limiting block; 27, the second clamping groove; 28, the rotating end. DETAILED DESCRIPTION

[0018] The technical solutions in the utility model are further described below with reference to the drawings and examples.

[0019] Example 1:

[0020] As Figure 1 and Figure 2 shown, a locking structure and a seat, comprising a work plate 21, the work plate 21 is provided with a first locking element, the work plate 21 is provided with an armrest adjustable in height, one end of the armrest is rotatably provided with a second locking element, the second locking element and the armrest are fixedly provided with a force plate 13, the second locking element is rotatably clamped with the force plate 13, and the second locking element is clamped with the first locking element, so that the armrest cannot move along the length direction of the work plate 21, and the work plate 21 is wide at the top and narrow at the bottom.

[0021] The armrest comprises a first force end 16 and a second force end 15, the first force end 16 is slidably arranged on the work plate 21, the first force end 16 is provided with a first clamping groove 17, the first clamping groove 17 is provided with a dial 19, the dial 19 is a conventional technical means, so it is not described in detail in the specification. The extension end of the dial 19 abuts against the first locking element.

[0022] The work plate 21 is provided with a second clamping groove 27 on both sides, and the second clamping groove 27 is adapted to the first clamping groove 17.

[0023] The second locking member comprises a rotating end 28 and an extension end 11. The rotating end 28 is provided with a first limiting hole 12. The rotating end 28 is rotatably arranged on one side of the first stress end 16. Two limiting blocks 26 are fixedly arranged on one side of the rotating end 28. The two limiting blocks 26 are matched with the first locking member to prevent the handrail from moving. The extension end 11 is provided with a receiving groove 10. A clamping block 25 is fixedly arranged in the receiving groove 10.

[0024] As shown in Figure 4 , one end of the stress plate 13 is provided with a fifth clamping groove 24. The end faces on both sides of the fifth clamping groove 24 are different in height. The end face on the side close to the extension end 11 is lower in height, so that the clamping block 25 can pass through the side end face and deform, thereby ensuring that the clamping block 25 can be clamped by the end face. Two second limiting holes 14 are arranged in the fifth clamping groove 24. When the second locking member is attached to the stress plate 13, the clamping block 25 extends into the fifth clamping groove 24.

[0025] As shown in Figure 3 , one side of the second stress end 15 is provided with a third clamping groove 18. The stress plate 13 is fixedly arranged in the third clamping groove 18. The rotating end 28 is rotatably arranged in the third clamping groove 18. The third clamping groove 18 is provided with a fourth limiting hole 23. A threaded rod with a nut is inserted through the first limiting hole 12 and is screwed with the fourth limiting hole 23, so that the second locking member is rotatably connected with the handrail. The third clamping groove 18 is provided with two third limiting holes 22. The two third limiting holes 22 correspond to the two second limiting holes 14. Two threaded rods with nuts are inserted through the two third limiting holes 22 and are screwed with the two second limiting holes 14, so that the stress plate 13 is fixed to one end of the handrail.

[0026] The first locking member comprises a plurality of protrusions 20 arranged at equal intervals along the working plate 21. When the second locking member is rotated, the two limiting blocks 26 are clamped between any three protrusions 20, thereby fixing the handrail.

[0027] Embodiment 2

[0028] A seat comprises two locking structures.

[0029] Working principle:

[0030] First, the working plate 21 is slidably arranged in the first clamping groove 17. The telescopic end of the knob 19 is clamped between the corresponding two protrusions 20, thereby limiting the handrail. At this time, the handrail cannot move up and down without external force, and has a certain stability. The second locking member is rotated. The second locking member rotates around the first limiting hole 12. The extension end 11 and the rotating end 28 rotate with the second locking member. The rotating end 28 drives the limiting blocks 26 to rotate. The two limiting blocks 26 are clamped between the three protrusions 20. The extension end 11 drives the clamping block 25 to rotate. The clamping block 25 is clamped in the fifth clamping groove 24.

[0031] Finally, it is pointed out that the above examples are merely to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A locking structure, characterized in that, The utility model provides a workbench, including: The workboard (21) is provided with first locking piece, the workboard (21) is adjustable lifting and is provided with handrail, one end of the handrail is rotatably provided with second locking piece, the second locking piece is fixed with force plate (13) between the handrail, the second locking piece rotates and is clamped with force plate (13), and second locking piece is clamped with first locking piece, so that the handrail cannot move along the length direction of workboard (21), the workboard (21) is wide down narrow.

2. The locking structure of claim 1, wherein: The handrail includes first force end (16) and second force end (15), the first force end (16) is slidably arranged on the workboard (21), the first force end (16) is provided with first clamping groove (17), the first clamping groove (17) is provided with knob (19), the knob (19) telescopic end is abutted with the first locking piece.

3. A locking arrangement according to claim 2, wherein: The both sides of the workboard (21) are provided with second clamping groove (27), and the second clamping groove (27) is matched with the first clamping groove (17).

4. The locking structure of claim 2, wherein: The second locking piece includes rotating end (28) and extension end (11), the rotating end (28) is rotatably arranged on one side of the first force end (16), the rotating end (28) is fixed with two limiting blocks (26) on one side, and the two limiting blocks (26) are matched with the first locking piece to prevent the handrail from moving, and the extension end (11) is provided with receiving groove (10), and the receiving groove (10) is fixed with clamping block (25).

5. A locking arrangement according to claim 4, wherein: One end of the force plate (13) is provided with fifth clamping groove (24), when the second locking piece is attached to the force plate (13), the clamping block (25) is inserted into the fifth clamping groove (24).

6. The locking structure of claim 4, wherein: One side of the second force end (15) is provided with third clamping groove (18), and the force plate (13) is fixed in the third clamping groove (18), and the rotating end (28) is rotatably arranged in the third clamping groove (18).

7. The locking structure of claim 1, wherein: The first locking piece includes a plurality of convex (20) arranged at equal intervals along the workboard (21).

8. A seat, characterized by The two locking structures of any one of claims 1-7. The two locking structures of any one of claims 1-7.

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