Quick-release waist rest and seat

Abstract

The utility model provides a quick-release waist rest and a chair, which are used for solving the technical problems that the waist rest of the existing office chair is inconvenient to detach and more time is wasted. The utility model discloses a quick release waist rest and a seat, which comprise a waist rest, one end of the waist rest is fixedly provided with a mounting block, one end of the mounting block is sleeved with a connecting sheet in a sliding manner, the connecting sheet is used for being fixed with a backrest, the other end of the mounting block is rotatably provided with two supporting rods, the supporting rods are used for clamping the connecting sheet, and after the supporting rods are rotated, the connecting sheet is fixed on the mounting block. When the waist rest needs to be replaced, the waist rest can be taken down by rotating the two supporting rods, a new waist rest can be replaced, and convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to office chair or seat technical field especially relates to a quick detachable waist rest and seat. BACKGROUND

[0002] Office chair refers to the backrest chair that people sit on when working on the desktop in a sitting position.

[0003] The existing office chair is provided with a waist rest, which is generally fixed on the office chair by screws. When the waist rest needs to be disassembled, it is very inconvenient to rotate the screws again, which is time-consuming. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model provides a quick detachable waist rest and seat to solve the technical problems of inconvenient disassembly of the waist rest of the existing office chair and time-consuming.

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

[0006] A quick detachable waist rest comprises a waist rest, an installation block fixed at one end of the waist rest, a connecting piece slidingly sleeved at one end of the installation block, the connecting piece being used for fixing with a backrest, two support rods rotatably arranged at the other end of the installation block, and the support rods being used for clamping the connecting piece.

[0007] Working principle:

[0008] When the waist rest needs to be removed, the two support rods are manually rotated, the one end of the two support rods extending out of the installation block is pressed, the support rods are rotated, the waist rest is moved upward, the installation block is moved by the waist rest, the installation block is moved relative to the connecting piece, and the waist rest is removed from the connecting piece.

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

[0010] 1. Only the two support rods need to be rotated to replace the waist rest, which is convenient and time-saving.

[0011] According to different requirements, different waist rests are replaced to improve the comfort of the user. DRAWINGS

[0012] Figure 1 It is an explosion structure schematic view of the utility model embodiment;

[0013] Figure 2 It is another perspective explosion structure schematic view of the utility model embodiment.

[0014] In the above drawings: 10, sliding groove; 11, connecting piece; 12, backrest; 13, mounting block; 14, mounting groove; 15, limiting block; 16, elastic piece; 17, connecting block; 18, waist rest; 19, spring; 20, clamping groove; 21, support rod; 22, second force rod; 23, first force rod; 24, arc-shaped groove; 25, groove; 26, opening; 27, limiting strip. DETAILED DESCRIPTION

[0015] The technical solutions in the utility model will be further explained below in combination with the drawings and examples.

[0016] Example 1

[0017] As shown in Figs. Figure 1 and Figure 2 A quick-release waist rest, the waist rest 18, comprises: the waist rest 18 is fixed with a mounting block 13 at one end, the mounting block 13 is slidingly sleeved with a connecting piece 11 at one end, the connecting piece 11 is used for being fixed with a backrest 12, the mounting block 13 is rotatably provided with two support rods 21 at the other end, the support rods 21 are used for clamping the connecting piece 11, after the support rods 21 are rotated, the support rods 21 are separated from the connecting piece 11.

[0018] The side of the waist rest 18 away from the backrest 12 can be mounted with a sponge or the like, the sponge has a heat preservation effect, and the sponge can improve the comfort of a user, when the temperature is relatively low, the waist rest with the sponge is used, when the temperature is relatively high, the waist rest with the sponge is taken off, and the waist rest without the sponge is replaced, so that better ventilation effect is achieved.

[0019] When the waist rest 18 needs to be taken off, the two support rods 21 are manually rotated, the ends of the two support rods 21 extending out of the mounting block 13 are pressed, the support rods 21 are rotated, the waist rest 18 is moved upward, the waist rest 18 drives the mounting block 13 to move, the mounting block 13 moves relative to the connecting piece 11, and the waist rest 18 is taken off from the connecting piece 11, and another waist rest 18 is replaced.

[0020] The mounting block 13 is provided with a sliding groove 10 at one end, the lower end of the sliding groove 10 is communicated with the outside, the connecting piece 11 is slidably arranged in the sliding groove 10, and the connecting piece 11 can slide away from below the sliding groove 10. The edge of the mounting block 13 is chamfered to prevent injury to the user. The other end of the mounting block 13 is provided with two clamping grooves 20, the two clamping grooves 20 are communicated with the sliding groove 10, two supporting rods 21 are arranged in the corresponding clamping grooves 20, one end of the two supporting rods 21 extends out of the clamping groove 20, the other end of the supporting rod 21 is fixedly provided with a first stress rod 23, the end of the first stress rod 23 away from the supporting rod 21 is an arc surface, the arc surface limits the connecting piece 11 from leaving the sliding groove 10, and the connecting piece 11 is conveniently re-entered into the sliding groove 10 from the outside, the first stress rod 23 clamps the connecting piece 11, and the supporting rod 21 is a bent rod, the second stress rod 22 is fixedly arranged at the bending position of the supporting rod 21, and the spring 19 is sleeved on the outer periphery of the second stress rod 22. The other end of the spring 19 abuts against the inner wall of the corresponding clamping groove 20.

[0021] The mounting block 13 is provided with an arc-shaped groove 24 at one end, and the end of the mounting block 13 is fixedly provided with a limiting block 15. The limiting block 15 closes the clamping groove 20, the limiting block 15 is provided with a mounting groove 14 in penetration, the arc-shaped groove 24 is opposite to the mounting groove 14, the end of the limiting block 15 close to the mounting block 13 is fixedly provided with two limiting strips 27, the two limiting strips 27 are matched with the corresponding clamping groove 20, the limiting strip 27 can extend into the corresponding clamping groove 20, and the limiting strip 20 plays a positioning role, so that the limiting block 15 and the mounting block 13 are more conveniently fixed.

[0022] The arc-shaped groove 24 is fixedly provided with an elastic element 16, the elastic element 16 penetrates through the mounting groove 14, the elastic element 16 is soft glue, when a user leans on the waist rest 18, the soft glue is elastically deformed, so that the waist rest 18 is more closely attached to the waist of the user, recesses 25 are formed in the two sides of the elastic element 16, the recesses 25 improve the deformation degree of the soft glue, and an opening 26 is formed in the end of the elastic element 16 close to the waist rest, and the opening 26 further improves the deformation effect of the elastic element 16.

[0023] The waist rest 18 is provided with a connecting block 17 at one end, the elastic element 16 is fixedly connected with the connecting block 17, one end of the elastic element 16 extends into the connecting block 17, and the stability between the elastic element 16 and the waist rest 18 is improved.

[0024] Embodiment 2:

[0025] A seat comprises a quick-release waist rest, wherein the connecting piece 11 is fixedly arranged on the seat.

[0026] When it is needed to use, the two supporting rods 21 are rotated, and the mounting block 13 is taken off from the connecting piece 11.

[0027] Working principle:

[0028] When the lumbar support 18 needs to be replaced, the two support rods 21 are manually pressed to extend out of one end of the mounting block 13, so that the two support rods 21 are close to each other at the end, the two support rods 21 drive the two first force rods 23 to be far away from each other, the lumbar support 18 is manually driven to move upward, the lumbar support 18 drives the mounting block 13 to move through the elastic element 16, the mounting block 13 moves upward and is out of contact with the connecting piece 11, the two support rods 21 of the other lumbar support 18 are pressed, so that the connecting piece 11 enters the sliding groove 10 of the other lumbar support 18.

[0029] Finally, it should be pointed out that the above embodiments are only used 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, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A quick release lumbar support characterized by, The waist rest (18) comprises: one end of the waist rest (18) is fixed with a mounting block (13), one end of the mounting block (13) is slidably sleeved with a connecting piece (11), the connecting piece (11) is used for being fixed with a backrest (12), the other end of the mounting block (13) is rotatably provided with two support rods (21), and the support rods (21) are used for clamping the connecting piece (11); after the support rods (21) are rotated, the support rods (21) are separated from the connecting piece (11).

2. A quick release lumbar support according to claim 1, wherein: One end of the mounting block (13) is provided with a sliding groove (10), and the connecting piece (11) is slidably arranged in the sliding groove (10).

3. A quick release lumbar support according to claim 2, wherein: The edge of the mounting block (13) is chamfered.

4. A quick release lumbar support according to claim 2, wherein: The other end of the mounting block (13) is provided with two clamping grooves (20), the two clamping grooves (20) are communicated with the sliding groove (10), the two support rods (21) are arranged in the corresponding clamping grooves (20), one end of the two support rods (21) protrudes out of the clamping grooves (20), the other end of the support rod (21) is fixedly provided with a first stress rod (23), the first stress rod (23) clamps the connecting piece (11), the support rod (21) is a bent rod, a second stress rod (22) is fixedly arranged at the bending position of the support rod (21), a spring (19) is sleeved on the outer periphery of the second stress rod (22), and the other end of the spring (19) abuts against the inner wall of the corresponding clamping groove (20).

5. A quick release lumbar support according to claim 4, wherein: One end of the mounting block (13) is provided with an arc-shaped groove (24), the end of the mounting block (13) is fixedly provided with a limiting block (15), the limiting block (15) closes the clamping grooves (20), the limiting block (15) is provided with a mounting groove (14) penetrating through, and the arc-shaped groove (24) is opposite to the mounting groove (14).

6. A quick release lumbar support according to claim 5, wherein: The arc-shaped groove (24) is fixedly provided with an elastic element (16), and the elastic element (16) penetrates through the mounting groove (14).

7. A quick release lumbar support according to claim 6, wherein: One end of the waist rest (18) is provided with a connecting block (17), and the elastic element (16) is fixedly connected with the connecting block (17).

8. A quick release lumbar support according to claim 6, wherein: The elastic element (16) is soft glue.

9. A quick release lumbar support according to claim 6, wherein: Grooves (25) are formed on both sides of the elastic element (16).

10. A seat, characterized by The fast release waist rest comprises: The fast release waist rest according to any one of claims 1-9.

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