CN220403554U

CN220403554U - Foldable office chair armrest

Info

Publication number: CN220403554U
Application number: CN202322093767.0U
Authority: CN
Inventors: 叶剑文
Original assignee: Foshan Shunde Manke Furniture Co ltd
Current assignee: Foshan Shunde Manke Furniture Co ltd
Priority date: 2023-08-05
Filing date: 2023-08-05
Publication date: 2024-01-30
Anticipated expiration: 2033-08-05

Abstract

The utility model discloses a foldable office chair armrest, which comprises a long armrest block and a short armrest block, wherein the right side of the long armrest block is provided with the short armrest block, the lower ends of the long armrest block and the short armrest block are symmetrically provided with hinges, the lower end of the long armrest block is provided with a groove, a moving block is arranged in the groove, the moving block is symmetrically and slidingly connected with a fixed rod, the fixed rod is fixedly connected with the inner wall of the groove, the right end of the moving block is provided with a clamping block I, the clamping block I passes through the groove, the left end of the short armrest block is provided with a clamping groove I corresponding to the clamping block I, and the right end of the short armrest block is provided with a clamping groove II. According to the utility model, the long handrail block and the short handrail block are folded and attached together, the extension rod is retracted into the hollow rod, the hollow rod is rotated, so that the long handrail block and the short handrail block are rotated to the lower part of the office chair, finally the hollow rod is released, and the hollow rod is driven to reset through the spring III, so that the folding hiding of the long handrail block and the short handrail block is completed, and the practical use of the office chair is facilitated.

Description

Foldable office chair armrest

Technical Field

The utility model relates to the field of office chairs, in particular to a foldable office chair armrest.

Background

Office chairs are various chairs equipped for convenience in daily work and social activities. The armrests of the office chair in the prior art can only be lifted simply and cannot be folded and hidden, and as the armrests are fixed on two sides of the office chair, office staff cannot put a plurality of office chairs side by side to lie down for sleeping, and can only lie prone for sleeping or lean against the chair for sleeping, so that the office chair is uncomfortable and inconvenient to use. Accordingly, one skilled in the art would provide a foldable armrest for office chairs that addresses the problems set forth in the background above.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a foldable office chair armrest, which comprises a long armrest block and a short armrest block, wherein the right side of the long armrest block is provided with the short armrest block, the lower ends of the long armrest block and the short armrest block are symmetrically provided with hinges, the lower end of the long armrest block is provided with a groove, a moving block is arranged in the groove, the inside of the moving block is symmetrically and slidingly connected with a fixed rod, the fixed rod is fixedly connected with the inner wall of the groove, the right end of the moving block is provided with a clamping block I, the clamping block I passes through the groove, the left end of the short armrest block is provided with a clamping groove I corresponding to the clamping block I, and the right end of the short armrest block is provided with a clamping groove II;

the left part of the lower end of the long handrail block is provided with an extension rod, the upper part in the extension rod is provided with a through hole, the inner wall of the through hole is symmetrically provided with a sliding groove, the second side surface of the clamping block is in sliding connection with a second clamping block, the sliding block is positioned in the sliding groove, the left end of the sliding block is provided with a second spring, the lower side of the extension rod is provided with a hollow rod, the inner side of the hollow rod is in sliding connection with a limiting block, the lower end of the extension rod passes through the hollow rod and is fixedly connected with the limiting block, the rear end of the limiting block is provided with an elastic lug, the rear end of the hollow rod is provided with a plurality of clamping holes, and the clamping holes correspond to the positions of the elastic lugs;

the fixed block is installed to hollow pole lower extreme, fixed block front end symmetry installation locating piece, fixed block front end installation pull rod, the pull rod front side sets up the cooperation pipe, cooperation intraductal sliding connection circle piece, and the pull rod front end passes cooperation pipe fixed connection circle piece, and the spring is established to the pull rod surface cover, and the spring is three to be located the cooperation intraductal, cooperation pipe surface symmetry installation cooperation piece, the inside locating hole of seting up of cooperation piece, and the position of locating hole correspondence locating piece.

Preferably: the first spring is sleeved on the outer surface of the fixed rod, and the first spring is positioned on the left side of the moving block.

Preferably: the pushing block is arranged at the lower end of the moving block.

Preferably: and a pull ring is arranged at the left end of the second clamping block.

Preferably: the front end of the matching pipe is provided with a mounting plate, and a plurality of mounting holes are formed in the mounting plate.

The utility model has the technical effects and advantages that:

according to the utility model, the first clamping block leaves the first clamping groove, the short handrail block is rotated, so that the long handrail block and the short handrail block are folded and attached together, the elastic protruding block is matched with the lowest Fang Kakong, the protruding rod is retracted into the hollow rod, then the hollow rod is pulled to move outwards, the hollow rod is rotated, the long handrail block and the short handrail block are rotated to the lower part of the office chair, finally the hollow rod is released, and the hollow rod is driven to reset through the third spring, so that the folding hiding of the long handrail block and the short handrail block is completed, and the practical use of the office chair is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present application;

FIG. 2 is a folding schematic of the present application;

FIG. 3 is a schematic structural view of the groove of the present application;

FIG. 4 is a schematic view of the structure of the extension rod of the present application;

FIG. 5 is a schematic view of the fitting tube of the present application;

in the figure:

1. a long armrest block; 2. a short armrest block; 3. a hinge; 4. a groove; 5. a moving block; 6. a fixed rod; 7. a first spring; 8. a clamping block I; 9. a pushing block; 10. a clamping groove I;

11. a clamping groove II; 12. an extension rod; 13. a through hole; 14. a chute; 15. a clamping block II; 16. a pull ring; 17. a slide block; 18. a second spring; 19. a limiting block; 20. an elastic bump;

21. a hollow rod; 22. a clamping hole; 23. a fixed block; 24. a positioning block; 25. a mating tube; 26. a mating block; 27. positioning holes; 28. a mounting plate; 29. a mounting hole; 30. round blocks;

31. a pull rod; 32. and a third spring.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Referring to fig. 1-5, in this embodiment, a foldable office chair armrest is provided, which includes a long armrest block 1 and a short armrest block 2, the right side of the long armrest block 1 is provided with the short armrest block 2, the lower ends of the long armrest block 1 and the short armrest block 2 are symmetrically provided with a hinge 3, the lower end of the long armrest block 1 is provided with a groove 4, a moving block 5 is arranged in the groove 4, the moving block 5 is symmetrically and slidingly connected with a fixing rod 6, the fixing rod 6 is fixedly connected with the inner wall of the groove 4, the right end of the moving block 5 is provided with a clamping block I8, the clamping block I8 passes through the groove 4, the outer surface of the fixing rod 6 is sleeved with a spring I7, the spring I7 is positioned at the left side of the moving block 5, the lower end of the moving block 5 is provided with a pushing block 9, the left end of the short armrest block 2 is provided with a clamping groove I10 corresponding to the position of the clamping block I8, the right end of the short armrest block 2 is provided with a clamping groove II 11, the left end of the lower end of the long armrest block 1 is provided with a protruding rod 12, the upper part of the protruding rod 12 is provided with a through hole 13, the inner wall of the through hole 13 is symmetrically provided with a sliding groove 14, a second clamping block 15 is connected in a sliding way in the through hole 13, a pull ring 16 is arranged at the left end of the second clamping block 15, a sliding block 17 is symmetrically arranged at the side surface of the second clamping block 15, the sliding block 17 is positioned in the sliding groove 14, a second spring 18 is arranged at the left end of the sliding block 17, a hollow rod 21 is arranged at the lower side of the extending rod 12, a limiting block 19 is connected in a sliding way in the hollow rod 21, the lower end of the extending rod 12 penetrates through the hollow rod 21 to be fixedly connected with the limiting block 19, an elastic lug 20 is arranged at the rear end of the limiting block 19, a plurality of clamping holes 22 are formed at the rear end of the hollow rod 21, the clamping holes 22 correspond to the positions of the elastic lug 20, a fixing block 23 is arranged at the lower end of the hollow rod 21, a locating block 24 is symmetrically arranged at the front end of the fixing block 23, a pull rod 31 is arranged at the front end of the fixing block 23, a matching pipe 25 is arranged at the front side of the pull rod 31, a round block 30 is connected in a sliding way inside the matching pipe 25, the front end of the pull rod 31 penetrates through the matching pipe 25 to be fixedly connected with the round block 30, the third spring 32 is sleeved on the outer surface of the pull rod 31, the third spring 32 is positioned in the matching pipe 25, the matching block 26 is symmetrically arranged on the outer surface of the matching pipe 25, the positioning hole 27 is formed in the matching block 26, the positioning hole 27 corresponds to the position of the positioning block 24, the mounting plate 28 is arranged at the front end of the matching pipe 25, and a plurality of mounting holes 29 are formed in the mounting plate 28.

The working principle of the utility model is as follows: the device is arranged on two sides of an office chair through the mounting holes 29 and bolts, the long handrail block 1 and the short handrail block 2 provide supporting force, arms are convenient to place, and the heights of the long handrail block 1 and the short handrail block 2 are adjusted through the matching of the elastic protruding blocks 20 and the clamping holes 22 at different positions, so that the device is convenient to use;

when the handrail needs to be folded, the movable block 5 is pushed to move by the pushing block 9, the movable block 5 drives the clamping block I8 to leave the clamping groove I10, the spring I7 is compressed by the movable block 5, the short handrail block 2 is rotated by the hinge 3, the back surfaces of the long handrail block 1 and the short handrail block 2 are parallel, the sliding block 17 is pushed to move by the spring II 18, the sliding block 17 drives the clamping block II 15 to be inserted into the clamping groove II 11, and the position of the short handrail block 2 is fixed, so that the long handrail block 1 and the short handrail block 2 are folded and adhered together;

the extension rod 12 is retracted into the hollow rod 21 through the cooperation of the elastic lug 20 and the lowest Fang Kakong, then the hollow rod 21 is pulled to move outwards, the hollow rod 21 drives the pull rod 31 and the round block 30 to move in the cooperation pipe 25, the third spring 32 is compressed by the round block 30, the positioning block 24 is separated from the positioning hole 27, then the hollow rod 21 is rotated, the round block 30 rotates in the cooperation pipe 25, the long handrail block 1 and the short handrail block 2 are rotated to the lower part of the office chair, the hollow rod 21 is released, the round block 30 is pushed to reset through the third spring 32, the round block 30 drives the hollow rod 21 to reset through the pull rod 31, and the positioning block 24 is inserted into the positioning hole 27, so that the folding hiding of the long handrail block 1 and the short handrail block 2 is completed.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The foldable office chair armrest comprises a long armrest block (1) and a short armrest block (2), and is characterized in that the short armrest block (2) is arranged on the right side of the long armrest block (1), hinges (3) are symmetrically arranged at the lower ends of the long armrest block (1) and the short armrest block (2), grooves (4) are formed in the lower ends of the long armrest block (1), moving blocks (5) are arranged in the grooves (4), fixing rods (6) are symmetrically and slidingly connected in the moving blocks (5), the fixing rods (6) are fixedly connected with the inner walls of the grooves (4), clamping blocks I (8) are arranged at the right ends of the moving blocks (5), the clamping blocks I (8) penetrate through the grooves (4), clamping grooves I (10) are formed in the positions, corresponding to the clamping blocks I (8), and clamping grooves II (11) are formed in the right ends of the short armrest block (2);

the left part of the lower end of the long handrail block (1) is provided with an extension rod (12), the upper part in the extension rod (12) is provided with a through hole (13), the inner wall of the through hole (13) is symmetrically provided with a sliding groove (14), the inner sliding of the through hole (13) is connected with a clamping block II (15), the side surface of the clamping block II (15) is symmetrically provided with a sliding block (17), the sliding block (17) is positioned in the sliding groove (14), the left end of the sliding block (17) is provided with a spring II (18), the lower side of the extension rod (12) is provided with a hollow rod (21), the inner sliding of the hollow rod (21) is connected with a limiting block (19), the lower end of the extension rod (12) penetrates through the hollow rod (21) to be fixedly connected with the limiting block (19), the rear end of the limiting block (19) is provided with an elastic lug (20), the rear end of the hollow rod (21) is provided with a plurality of clamping holes (22), and the clamping holes (22) correspond to the positions of the elastic lugs (20).

The fixed block (23) is installed to hollow pole (21) lower extreme, fixed block (23) front end symmetry installation locating piece (24), fixed block (23) front end installation pull rod (31), pull rod (31) front side sets up cooperation pipe (25), inside sliding connection circle piece (30) of cooperation pipe (25), pull rod (31) front end passes cooperation pipe (25) fixed connection circle piece (30), spring three (32) are established to pull rod (31) surface cover, and spring three (32) are located cooperation pipe (25), cooperation pipe (25) surface symmetry installation cooperation piece (26), locating hole (27) are seted up to cooperation piece (26) inside, and the position of locating piece (24) is corresponding to locating hole (27).

2. A foldable office chair armrest according to claim 1, characterized in that the outer surface of the fixed rod (6) is sleeved with a first spring (7), and the first spring (7) is positioned on the left side of the movable block (5).

3. A foldable office chair armrest according to claim 1, characterized in that the lower end of the moving block (5) is provided with a push block (9).

4. A foldable office chair armrest according to claim 1, characterized in that the left end of the second latch (15) is provided with a pull ring (16).

5. A foldable office chair armrest according to claim 1, characterized in that the front end of the fitting tube (25) is provided with a mounting plate (28), and the mounting plate (28) is internally provided with a plurality of mounting holes (29).