Office chair with adjustable armrest

Abstract

The utility model discloses an office chair with adjustable handrails relates to the field of chairs. Including the cushion, the top end edge fixed connection of cushion has the back, the top of back is provided with the headrest, under the setting of two groups of fixed blocks, two groups of first sliding slot and two groups of fixed disc, rotates two groups of thread rods, drives two groups of rotating blocks along the inner wall of two groups of fixed sleeves and rotates, under the setting of two groups of second sliding slot, two groups of movable blocks drive two groups of movable pipes along the inner wall of two groups of fixed pipes and vertically rise, while two groups of scale pointers slide along the outer wall of two groups of scale boards, drive two groups of chair handrails and rise, through watching two groups of scale pointers and two groups of scale boards, ensure the height consistency of two groups of chair handrails, avoid body inclination, produce the case of high and low shoulder.

Description

Technical Field

[0001] This utility model relates to the field of chair technology, specifically to an office chair with adjustable armrests. Background Technology

[0002] A chair is a piece of everyday furniture. When users work or rest in a chair, they often rest their arms on the armrests for support. Since the armrests are nested inside the chair, the height of the two sets of armrests needs to be adjusted. The height of the two sets of armrests cannot be seen directly. When the height of the two sets of armrests is not the same, placing the arms on the two sets of armrests will cause the body to tilt, which can lead to uneven shoulders over time.

[0003] Therefore, improvements are needed to the armrest structure of the chair to enhance its adaptability. To this end, we propose an office chair with adjustable armrests. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides an office chair with adjustable armrests, which solves the problem of inconsistent height adjustment of the armrests of the two sets of chairs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an office chair with adjustable armrests, including a seat cushion, a backrest fixedly connected to the top edge of the seat cushion, a headrest provided at the top of the backrest, two sets of fixed tubes fixedly connected to the left and right sides of the top of the seat cushion, a movable tube movably nested in the inner wall of the fixed tube, a chair armrest fixedly connected to the top of the movable tube, a support leg fixedly connected to the bottom of the seat cushion, and an adjustment component nested in the outer wall of the fixed tube;

[0006] The adjustment assembly mainly includes a fixed block, a first sliding groove is formed at the nesting part of the fixed tube and the fixed block, a fixed disk is fixedly connected to the outer wall of the fixed block, a threaded rod is threadedly connected to the inner wall of the fixed disk, a rotating block is fixedly connected to the top of the threaded rod, a fixed sleeve is nested in the outer wall of the rotating block, a movable block is fixedly connected to the outer wall of the fixed sleeve, a second sliding groove is formed at the nesting part of the movable tube and the movable block, a scale plate is fixedly connected to the outer wall of the movable tube, and a scale pointer is fixedly connected to the top of the fixed disk.

[0007] Preferably, the adjustment component is located behind the fixed tube.

[0008] Preferably, the cross-section of the fixed block is convex, and the cross-section of the movable block is convex.

[0009] Preferably, the cross-section of the rotating block is convex.

[0010] Preferably, the opening directions of the first groove and the second groove are the same.

[0011] Preferably, the scale plate is provided with scale lines.

[0012] Preferably, the top of the scale pointer is in contact with the outer wall of the scale plate.

[0013] This utility model discloses an office chair with adjustable armrests, which has the following beneficial effects:

[0014] This office chair with adjustable armrests, with two sets of fixed blocks, two sets of first sliding grooves, and two sets of fixed plates, rotates two sets of threaded rods, causing two sets of rotating blocks to rotate along the inner walls of two sets of fixed sleeves. With two sets of second sliding grooves, two sets of movable blocks drive two sets of movable tubes to rise vertically along the inner walls of two sets of fixed tubes. At the same time, two sets of scale pointers slide along the outer walls of two sets of scale plates, causing the two sets of chair armrests to rise. By observing the two sets of scale pointers and the two sets of scale plates, it is ensured that the height of the two sets of chair armrests is consistent, avoiding body tilting and uneven shoulders. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixed tube connection part of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the movable tube connection part of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connecting part of the fixing sleeve of this utility model.

[0020] In the diagram: 1. Seat cushion; 2. Backrest; 3. Headrest; 4. Fixed tube; 5. Movable tube; 6. Chair armrest; 7. Support leg; 8. Fixed block; 9. First slide groove; 10. Fixed plate; 11. Threaded rod; 12. Rotating block; 13. Fixed sleeve; 14. Movable block; 15. Second slide groove; 16. Scale plate; 17. Scale pointer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] This application embodiment provides an office chair with adjustable armrests, including a seat cushion 1, a backrest 2 fixedly connected to the top edge of the seat cushion 1, a headrest 3 provided at the top of the backrest 2, two sets of fixed tubes 4 fixedly connected to the left and right sides of the top of the seat cushion 1, movable tubes 5 movably nested in the inner wall of the fixed tubes 4, chair armrests 6 fixedly connected to the top of the movable tubes 5, and support legs 7 fixedly connected to the bottom of the seat cushion 1. Adjustment components are nested in the outer wall of the fixed tubes 4, which is conducive to office workers sitting on the seat cushion 1 with their back against the backrest 2 and their head against the headrest 3. With the support legs 7, the chair armrests 6 support the arms.

[0023] The adjustment assembly mainly includes a fixed block 8, a first groove 9 formed at the nesting part between the fixed tube 4 and the fixed block 8, a fixed disk 10 fixedly connected to the outer wall of the fixed block 8, a threaded rod 11 threadedly connected to the inner wall of the fixed disk 10, a rotating block 12 fixedly connected to the top of the threaded rod 11, a fixed sleeve 13 nested in the outer wall of the rotating block 12, a movable block 14 fixedly connected to the outer wall of the fixed sleeve 13, a second groove 15 formed at the nesting part between the movable tube 5 and the movable block 14, a scale plate 16 fixedly connected to the outer wall of the movable tube 5, and a scale plate 16 fixedly connected to the top of the fixed disk 10. The pointer 17 facilitates the rotation of two sets of threaded rods 11 under the arrangement of two sets of fixed blocks 8, two sets of first sliding grooves 9 and two sets of fixed plates 10, which drives two sets of rotating blocks 12 to rotate along the inner walls of two sets of fixed sleeves 13. Under the arrangement of two sets of second sliding grooves 15, two sets of movable blocks 14 drive two sets of movable tubes 5 to rise vertically along the inner walls of two sets of fixed tubes 4. At the same time, two sets of scale pointers 17 slide along the outer walls of two sets of scale plates 16, which drives two sets of chair armrests 6 to rise. By observing the two sets of scale pointers 17 and the two sets of scale plates 16, it can be ensured that the height of the two sets of chair armrests 6 is consistent.

[0024] Furthermore, the adjustment component is located behind the fixed tube 4, which helps to reduce the chance of the rapidly moving arm touching the adjustment component and prevent injury.

[0025] Furthermore, the fixed block 8 has a convex cross-section, and the movable block 14 has a convex cross-section to prevent the adjustment components from falling off.

[0026] Furthermore, the cross-section of the rotating block 12 is convex to prevent the rotating block 12 from separating from the fixed sleeve 13 when it descends.

[0027] Furthermore, the opening directions of the first slide groove 9 and the second slide groove 15 are consistent, which facilitates the sliding of the fixed block 8 along the first slide groove 9, while the movable block 14 slides along the second slide groove 15, and finally separates from the fixed tube 4 and the movable tube 5.

[0028] Furthermore, the scale plate 16 is equipped with scale lines, which helps the adjuster to quickly understand the height of the chair armrest 6.

[0029] Furthermore, the top of the scale pointer 17 is in contact with the outer wall of the scale plate 16, which helps to avoid errors when the person making the adjustment is looking at it.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] Working principle: The office worker sits on the seat cushion 1, with their back against the backrest 2 and their head against the headrest 3. With the support legs 7 in place, the armrests 6 support the armrests.

[0032] With two sets of fixed blocks 8, two sets of first sliding grooves 9, and two sets of fixed plates 10, rotating two sets of threaded rods 11 drives two sets of rotating blocks 12 to rotate along the inner walls of two sets of fixed sleeves 13. With two sets of second sliding grooves 15, two sets of movable blocks 14 drive two sets of movable tubes 5 to rise vertically along the inner walls of two sets of fixed tubes 4. At the same time, two sets of scale pointers 17 slide along the outer walls of two sets of scale plates 16, driving two sets of chair armrests 6 to rise. By observing the two sets of scale pointers 17 and the two sets of scale plates 16, it is ensured that the heights of the two sets of chair armrests 6 are consistent.

[0033] When the chair armrest 6 needs to be adjusted, pull the adjustment component. Finally, the adjustment component separates from the fixed tube 4 and the movable tube 5, and the movable tube 5 is removed from the fixed tube 4.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An office chair with adjustable armrests, comprising a seat cushion (1), characterized in that: The top left and right sides of the seat cushion (1) are fixedly connected to two sets of fixed tubes (4), the inner wall of the fixed tube (4) is movably nested with a movable tube (5), the top of the movable tube (5) is fixedly connected to a chair armrest (6), and the outer wall of the fixed tube (4) is nested with an adjustment component. The adjustment assembly mainly includes a fixed block (8), a first groove (9) is provided at the nesting part of the fixed tube (4) and the fixed block (8), a fixed plate (10) is fixedly connected to the outer wall of the fixed block (8), a threaded rod (11) is threadedly connected to the inner wall of the fixed plate (10), a rotating block (12) is fixedly connected to the top of the threaded rod (11), a fixed sleeve (13) is nested in the outer wall of the rotating block (12), a movable block (14) is fixedly connected to the outer wall of the fixed sleeve (13), a second groove (15) is provided at the nesting part of the movable tube (5) and the movable block (14), a scale plate (16) is fixedly connected to the outer wall of the movable tube (5), a scale pointer (17) is fixedly connected to the top of the fixed plate (10), scale lines are provided on the scale plate (16), and the top of the scale pointer (17) is in contact with the outer wall of the scale plate (16).

2. An office chair with adjustable armrests according to claim 1, characterized in that: The bottom end of the cushion (1) is fixedly connected to a support leg (7).

3. An office chair with adjustable armrests according to claim 1, characterized in that: The top edge of the cushion (1) is fixedly connected to a backrest (2), and a headrest (3) is provided at the top of the backrest (2).

4. An office chair with adjustable armrests according to claim 1, characterized in that: The adjustment component is located behind the fixed tube (4).

5. An office chair with adjustable armrests according to claim 1, characterized in that: The fixed block (8) has a convex cross-section, and the movable block (14) has a convex cross-section.

6. An office chair with adjustable armrests according to claim 1, characterized in that: The cross-section of the rotating block (12) is convex.

7. An office chair with adjustable armrests according to claim 1, characterized in that: The opening directions of the first groove (9) and the second groove (15) are the same.

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