An office chair with adjustable armrest damping

Abstract

This utility model discloses an office chair with adjustable armrest damping, comprising an office chair, a support plate installed under the seat cushion, lifting mechanisms installed at both ends of the top of the support plate, a damping adjustment mechanism installed on the top of the lifting mechanism, a rotating rod installed on the damping adjustment mechanism, and an armrest installed on the top of the rotating rod. The lifting mechanism can adjust the height of the armrest, and the damping adjustment mechanism can adjust the rotational damping force of the rotating rod. This utility model allows for armrest height adjustment via the lifting mechanism, making it convenient for people of different heights to use and providing comfortable arm support. Simultaneously, the damping adjustment mechanism can adjust the rotational damping of the armrest, allowing users to adjust the armrest damping according to their needs and avoiding excessive or insufficient damping that could hinder use.

Description

Technical Field

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

[0002] Office chair armrests are an important component of office chairs, primarily used to support the arms, reduce pressure on the shoulders and neck, and provide additional stability. They are usually located on both sides of the seat, and their height and angle can be adjusted according to the user's height and usage habits to ensure optimal comfort and ergonomics. Armrests are made of various materials, commonly including plastic, metal, and wood, and are usually covered with a soft pad to increase comfort and reduce arm fatigue. In terms of design, the shape and size of the armrests are also optimized according to different usage scenarios and user needs. For example, some armrests are designed to be foldable for easy storage and transportation of the chair, while others add extra support points to accommodate the needs of long hours of office work.

[0003] Currently, office chair armrests can be adjusted to fit the position of the arms by rotating them. However, the resistance of rotating office chair armrests is fixed. If the resistance is too small, the armrest will rotate with a slight twist when placed on it. If the resistance is too large, it is very difficult to rotate and inconvenient to adjust.

[0004] Therefore, an office chair with adjustable armrest damping was proposed to solve the above problems. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an office chair with adjustable armrest damping. This aims to solve the problem that while existing office chair armrests can be rotated to adjust their angle to suit the position of the arms, the damping of the current office chair armrests is fixed. If the damping is too small, even a slight twist of the arm will cause the armrest to rotate; if the damping is too large, it is very difficult to rotate and inconvenient to adjust.

[0007] 2. Technical Solution To achieve the above objectives, this utility model provides the following technical solution:

[0008] An office chair with adjustable armrest damping includes an office chair, a support plate installed under the seat cushion, lifting mechanisms installed at both ends of the top of the support plate, a damping adjustment mechanism installed on the top of the lifting mechanism, a rotating rod installed on the damping adjustment mechanism, and an armrest installed on the top of the rotating rod. The lifting mechanism can adjust the height of the armrest, and the damping adjustment mechanism can adjust the rotation damping force of the rotating rod.

[0009] Furthermore, a sleeve is installed on the lifting mechanism, the bottom of the sleeve is installed on the top of the support plate, and multiple adjustment holes with equal spacing are symmetrically opened on both sides of the sleeve. A support column is slidably installed on the inner side of the sleeve, and a press-and-retractable locking block matching the size of the adjustment hole is symmetrically installed on both sides of the bottom of the support column.

[0010] With the above technical solution, the support column can slide up and down inside the sleeve, and the height of the support column can be adjusted by pressing the telescopic locking block and the adjustment hole.

[0011] Furthermore, limit sliders are symmetrically installed on the inner side of the sleeve, and grooves matching the size of the limit sliders are opened on both sides of the outer ring surface of the support column, and the limit sliders and the grooves are slidably connected.

[0012] Through the above technical solution, the support column can move vertically inside the sleeve, avoiding the problem that the telescopic locking block cannot be aligned with the corresponding height adjustment hole after reaching the height.

[0013] Furthermore, a connecting cylinder is installed on the damping adjustment mechanism, and the bottom center of the connecting cylinder is fixedly connected to the top of the support column.

[0014] Through the above technical solution, the support column can drive the connecting cylinder to adjust its height during the lifting and lowering process.

[0015] Furthermore, the bottom of the rotating rod is inserted from the top center of the connecting cylinder and rotatably connected to the inner bottom center of the connecting cylinder.

[0016] The above technical solution allows for the adjustment of the handrail's height through the lifting and lowering adjustment of the connecting cylinder.

[0017] Furthermore, an adjusting disc is fixedly installed inside the connecting cylinder on the outer ring surface of the rotating rod. A transmission groove is formed on the outer ring surface of the adjusting disc. A threaded sleeve is installed on the top of the outer side of the connecting cylinder. A telescopic rod is slidably installed on the inner side of the threaded sleeve. One end of the telescopic rod is hemispherical and extends into the inner side of a transmission groove on the adjusting disc inside the connecting cylinder. An adjusting cap is rotatably connected to one end of the telescopic rod. There is a gap between the inner side of the adjusting cap and the outer ring surface of the telescopic rod. The adjusting cap is threadedly connected to the outer ring surface of the threaded sleeve.

[0018] Using the above technical solution, the rotation damping of the rotating rod can be adjusted by rotating the adjusting cap, thereby realizing the adjustment of the damping force of the handrail.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This utility model, through the design of an office chair with adjustable armrest damping, achieves the following effects: 1. The support column of this device is installed inside the sleeve. When the telescopic locking block is pressed by hand, the support column can slide up and down inside the sleeve, allowing the telescopic locking block to be switched to different height adjustment holes, thereby adjusting the height of the office chair armrests to meet the needs of people of different heights; 2. The armrest uses a rotating rod to rotate within the connecting cylinder to coordinate with the user's arm direction. When the rotating rod rotates, the adjustment plate will squeeze one end of the telescopic rod to retract. After tightening the adjustment cap, one end of the telescopic rod is closer to the inner side of the transmission groove on the adjustment plate. At this time, the force of the rotating rod will increase. Therefore, the rotational force of the rotating rod can be determined by the distance between the telescopic rod and the transmission groove on the adjustment plate. Thus, by rotating the adjustment cap, the rotational damping of the rotating rod can be controlled, thereby adjusting the rotational damping feel of the armrest. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an office chair with adjustable armrest damping according to the present invention.

[0023] Figure 2 This is an enlarged schematic diagram of the lifting mechanism of an adjustable armrest damping office chair according to the present invention.

[0024] Figure 3 This is a schematic diagram of the damping adjustment mechanism and armrest structure of an office chair with adjustable armrest damping according to the present invention.

[0025] Figure 4 This is an enlarged structural diagram of some components of the damping adjustment mechanism of an office chair with adjustable armrest damping according to the present invention.

[0026] In the diagram: 1. Office chair; 11. Support plate; 2. Lifting mechanism; 21. Sleeve; 22. Adjustment hole; 23. Limit slider; 24. Support column; 25. Press-to-retractable locking block; 26. Slide groove; 3. Damping adjustment mechanism; 31. Connecting cylinder; 32. Rotating rod; 33. Adjustment disc; 34. Adjustment cap; 35. Telescopic rod; 36. Threaded sleeve; 4. Armrest. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0029] Example 1

[0030] Please see Figure 1-4 This embodiment provides an office chair with adjustable armrest damping, including an office chair 1. A support plate 11 is installed under the seat cushion of the office chair 1. Lifting mechanisms 2 are installed at both ends of the top of the support plate 11. A damping adjustment mechanism 3 is installed on the top of the lifting mechanism 2. A rotating rod 32 is installed on the damping adjustment mechanism 3. An armrest 4 is installed on the top of the rotating rod 32. The lifting mechanism 2 can adjust the height of the armrest 4, and the damping adjustment mechanism 3 can adjust the rotation damping force of the rotating rod 32. The height adjustment of the armrest 4 by the lifting mechanism 2 makes it convenient for people of different heights to use, so that the arm support can reach a more comfortable state. At the same time, the damping adjustment mechanism 3 can adjust the rotation damping of the armrest 4, so that users can adjust the damping of the armrest 4 according to their own usage needs, avoiding excessive or insufficient damping that would cause obstacles to use.

[0031] Example 2

[0032] Please see Figure 1-2 Based on Embodiment 1, this embodiment further specifies that a sleeve 21 is installed on the lifting mechanism 2. The bottom of the sleeve 21 is installed on the top of the support plate 11. Multiple adjustment holes 22 with equal spacing and height are symmetrically opened on both sides of the sleeve 21. A support column 24 is slidably installed on the inner side of the sleeve 21. Press-and-retractable locking blocks 25 matching the size of the adjustment holes 22 are symmetrically installed on both sides of the bottom of the support column 24. After pressing the press-and-retractable locking blocks 25 that are locked inside the adjustment holes 22, the support column 24 can be slidably adjusted up and down inside the sleeve 21. The press-and-retractable locking blocks 25 can be locked into the corresponding height adjustment holes 22 according to the usage height, thereby realizing the adjustment of the support height.

[0033] Example 3

[0034] Please see Figure 2Based on Embodiment 1, this embodiment further specifies that limit sliders 23 are symmetrically installed on the inner side of the sleeve 21, and grooves 26 matching the size of the limit sliders 23 are opened on both sides of the outer ring surface of the support column 24. The limit sliders 23 and the grooves 26 are slidably connected. By using the sliding limit between the limit sliders 23 and the grooves 26, the problem of misalignment between the press telescopic block 25 and the corresponding height adjustment hole 22 is avoided due to the support column 24 rotating involuntarily during the lifting process.

[0035] Example 4

[0036] Please see Figure 2-3 Based on Embodiment 1, this embodiment further specifies that an adjusting disc 33 is fixedly installed inside the connecting cylinder 31 on the outer ring surface of the rotating rod 32. A transmission groove is formed on the outer ring surface of the adjusting disc 33. A threaded sleeve 36 is installed on the top of the outer side of the connecting cylinder 31. A telescopic rod 35 is slidably installed on the inner side of the threaded sleeve 36. One end of the telescopic rod 35 is hemispherical and extends into the inner side of a transmission groove on the adjusting disc 33 inside the connecting cylinder 31. An adjusting cap 34 is rotatably connected to one end of the telescopic rod 35. There is a gap between the inner side of the adjusting cap 34 and the outer ring surface of the telescopic rod 35. The adjusting cap 34 is threadedly connected to the outer ring surface of the threaded sleeve 36. When the handrail 4 needs to be rotated, the handrail 4 drives the rotating rod 32 to rotate. The transmission groove of the adjusting disc 33 on the rotating rod 32 intermittently squeezes the hemispherical end of the telescopic rod 35 to achieve rotation. Therefore, the rotating rod 32 has a certain damping feeling during rotation. When the adjusting cap 34 is gradually rotated clockwise, the adjusting cap 34 drives one end of the telescopic rod 35 to gradually extend into the transmission groove on the adjusting disc 33, so that the squeezing force of the adjusting disc 33 on one end of the telescopic rod 35 gradually increases when it rotates, thereby realizing the adjustment of the damping force of the rotating rod 32.

[0037] Working principle: When using this office chair armrest, first press the push-to-retract type latch 25 that is locked inside the adjustment hole 22, and the support column 24 can be adjusted up and down inside the sleeve 21. And when the limit slider 23 is slidably limited between the slide and the slide groove 26, the push-to-retract type latch 25 can be locked into the corresponding height adjustment hole 22 according to the usage height, thereby realizing the adjustment of the support height.

[0038] When the armrest 4 needs to be rotated, the armrest 4 drives the rotating rod 32 to rotate. The transmission groove of the adjustment disc 33 on the rotating rod 32 intermittently squeezes the hemispherical end of the telescopic rod 35 to achieve rotation. Therefore, the rotating rod 32 has a certain damping feel during rotation. When the adjustment cap 34 is gradually rotated clockwise, the adjustment cap 34 drives one end of the telescopic rod 35 to gradually extend into the transmission groove on the adjustment disc 33, so that the squeezing force of the adjustment disc 33 on one end of the telescopic rod 35 gradually increases when it rotates, thereby realizing the adjustment of the damping force of the rotating rod 32. Therefore, the user can adjust the damping feel of the armrest 4 according to their own needs to avoid the obstacle caused by excessive or insufficient damping.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An office chair with adjustable armrest damping, comprising an office chair (1), characterized in that: The office chair (1) has a support plate (11) installed under the seat cushion. The support plate (11) has a lifting mechanism (2) installed at both ends of the top. The lifting mechanism (2) has a damping adjustment mechanism (3) installed on the top. The damping adjustment mechanism (3) has a rotating rod (32) installed on the top. The rotating rod (32) has an armrest (4) installed on the top. The lifting mechanism (2) can adjust the height of the armrest (4). The damping adjustment mechanism (3) can adjust the rotation damping force of the rotating rod (32).

2. The office chair with adjustable armrest damping according to claim 1, characterized in that: A sleeve (21) is installed on the lifting mechanism (2). The bottom of the sleeve (21) is installed on the top of the support plate (11). Multiple adjustment holes (22) with equal spacing are symmetrically opened on both sides of the sleeve (21). A support column (24) is slidably installed on the inner side of the sleeve (21). Press-and-retractable locking blocks (25) matching the size of the adjustment holes (22) are symmetrically installed on both sides of the bottom of the support column (24).

3. An office chair with adjustable armrest damping according to claim 2, characterized in that: Limiting sliders (23) are symmetrically installed on the inner side of the sleeve (21). The outer ring surface of the support column (24) is provided with grooves (26) on both sides that match the size of the limiting sliders (23). The limiting sliders (23) and the grooves (26) are slidably connected.

4. An office chair with adjustable armrest damping according to claim 1, characterized in that: A connecting cylinder (31) is installed on the damping adjustment mechanism (3), and the bottom center of the connecting cylinder (31) is fixedly connected to the top of the support column (24).

5. An office chair with adjustable armrest damping according to claim 1, characterized in that: The bottom of the rotating rod (32) is inserted from the top center of the connecting cylinder (31) and rotates to connect with the bottom center of the inner side of the connecting cylinder (31).

6. An office chair with adjustable armrest damping according to claim 1, characterized in that: An adjusting disc (33) is fixedly installed on the outer ring surface of the rotating rod (32) inside the connecting cylinder (31). A transmission groove is opened on the outer ring surface of the adjusting disc (33). A threaded sleeve (36) is installed on the top of the outer side of the connecting cylinder (31). A telescopic rod (35) is slidably installed on the inner side of the threaded sleeve (36). One end of the telescopic rod (35) is hemispherical and extends into the inner side of a transmission groove on the adjusting disc (33) inside the connecting cylinder (31). An adjusting cap (34) is rotatably connected to one end of the telescopic rod (35). There is a gap between the inner side of the adjusting cap (34) and the outer ring surface of the telescopic rod (35). The adjusting cap (34) is threadedly connected to the outer ring surface of the threaded sleeve (36).

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