Handrail angle adjustment mechanism

Abstract

The utility model discloses a handrail angle adjusting mechanism, in view of the existing e-sports chair handrail angle fixed easy fatigue problem, the mechanism is connected by pivot from fixed part, rotating part, and is matched with locking structure and inclined groove slide post linkage assembly. The locking structure contains the locking clamping plate of rotating part and the three locking grooves of fixed part, and the angle difference of adjacent groove is 20 degrees, realizes multistage adjustment, and the linkage push plate of pressing block and slide post is through the oblique slide groove of locking clamping plate and converts horizontal sliding into longitudinal movement, and completes unlocking and automatic locking with reset spring, and when operating, the pressing block makes locking clamping plate separate from groove, and after manual adjustment, loosening can reset lock, and its advantage lies in compact structure, and it is labor-saving to operate, and the oblique slide groove design reduces friction and improves transmission efficiency, and reset spring ensures automatic homing and stable locking, and the added damper and nylon shock pad optimize the use experience.

Description

Technical Field

[0001] This utility model relates to the field of furniture accessories technology, specifically a multi-angle adjustment and locking mechanism for the armrests of gaming chairs, suitable for office chairs, gaming chairs and other seating furniture that require frequent adjustment of the armrest angle. Background Technology

[0002] As the e-sports industry becomes more popular, users are demanding more refined comfort from e-sports chairs. Currently, the armrests of mainstream e-sports chairs only support height adjustment via gas springs and latches, but the angle between the armrests and the horizontal plane cannot be adjusted. If the armrest angle is fixed, the elbows are forced into an unnatural posture for a long time, which can easily lead to muscle fatigue, joint pain, and seriously reduce the user experience.

[0003] Therefore, there is an urgent need for an angle adjustment mechanism that is simple in structure, easy to operate, and has reliable locking, to fill the functional gaps and meet the diverse needs of users. Utility Model Content

[0004] This utility model proposes a handrail angle adjustment mechanism to achieve convenient adjustment and stable locking of the handrail angle.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A handrail angle adjustment mechanism includes a handrail, which consists of a fixed part and a rotating part, and the rotating part can rotate around the fixed part via a pivot.

[0007] It also has a locking structure, which includes a locking plate disposed on the rotating part and a locking groove disposed on the fixed part. The locking plate is engaged in the locking groove to lock the rotating part onto the fixed part.

[0008] It also has a slanted groove sliding column linkage structure. The locking plate moving structure includes a sliding column and an slanted sliding groove set on the locking plate. When the sliding column slides laterally, the locking plate moves longitudinally due to the presence of the slanted sliding groove.

[0009] It also has a pressing block and a push plate, which are fixedly connected, and the sliding column is fixed on the push plate;

[0010] It also has a return spring, which is located between the pressing block and the rotating part.

[0011] Furthermore, there are three locking grooves, and the angle difference between adjacent locking grooves is 20 degrees.

[0012] Furthermore, the inclination angle α of the inclined groove satisfies 30°≤α≤45°.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model's gaming chair armrest angle adjustment mechanism achieves efficient and reliable angle adjustment through innovative design. It features three locking grooves with a 20-degree angle difference, allowing users to select the appropriate armrest angle according to different scenarios such as office work and rest. During operation, pressing the button unlocks the armrest, and releasing the button after adjustment causes the return spring to automatically engage the locking plate in the corresponding groove, completing the locking process. The process is convenient and intuitive. The locking plate, sliding column, push plate, and return spring are linked by an oblique sliding groove and a rotating shaft, resulting in a compact structure with minimal space occupation. This avoids the complex assembly of traditional ratchet components. The rigid fit between the locking plate and the groove, along with the elastic force of the return spring, effectively prevents accidental loosening of the armrest during use, ensuring stable and reliable adjustment of the angle. The oblique sliding groove controls the lateral movement of the sliding column... The movement is transformed into the longitudinal movement of the locking plate. Utilizing the principle of inclined planes, the operating force is reduced, making unlocking and locking easier. At the same time, the sliding fit and the buffering effect of the spring reduce wear between components and extend the service life of the mechanism. After releasing the pressing block, the return spring will quickly push the component back to the initial position, ensuring that the structure automatically resets and avoiding malfunctions caused by failure to return to the correct position. Furthermore, the tight fit between the locking plate and the groove, as well as the locking force of the spring, can prevent the armrest from being accidentally unlocked when not pressed, improving safety. In addition, this mechanism is suitable for various gaming chairs and office chairs. The number and angle difference of the locking grooves can be adjusted according to different seat designs, making it highly versatile. At the same time, the simple structure and few parts reduce manufacturing and maintenance costs, combining reliability and economy, and has broad market application prospects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall side view structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the locking / unlocking state structure of the locking plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the 20° adjustable cross-sectional structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the 40° adjustable cross-sectional structure of this utility model.

[0021] In the diagram: 1. Fixed part; 11. Locking groove; 2. Rotating part; 21. Locking plate; 211. Angled slide; 22. Sliding column; 23. Pressing block; 24. Push plate; 25. Return spring; 3. Rotating shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] like Figures 1-6 As shown, a handrail angle adjustment mechanism includes a handrail consisting of a fixed part 1 and a rotating part 2. The rotating part 2 can rotate around the fixed part 1 via a rotating shaft 3. It also includes a locking structure comprising a locking plate 21 on the rotating part 2 and a locking groove 11 on the fixed part 1. The locking plate 21 engages with the locking groove 11, locking the rotating part 2 onto the fixed part 1. Furthermore, it includes a sliding column 22 linkage structure. The locking plate 21 moving structure includes a sliding column 22 and an inclined sliding groove 211 on the locking plate 21. When the sliding column 22 slides laterally, the locking plate 21 moves longitudinally due to the presence of the inclined sliding groove 211. It also includes a pressing block 23 and a push plate 24, which are fixedly connected. The sliding column 22 is fixed on the push plate 24. Finally, it includes a return spring 25 disposed between the pressing block 23 and the rotating part 2.

[0025] There are three locking grooves 11, and the angle difference between adjacent locking grooves 11 is 20 degrees.

[0026] The inclination angle α of the inclined slide 211 satisfies 30°≤α≤45°.

[0027] It should be noted that 60Si2MnA spring steel (hardness HRC45-50) was selected as the material for the locking plate 21, and the surface of the inclined slide 211 was chrome-plated (thickness 0.05mm) to reduce the coefficient of friction. The inclination angle of the inclined slide 211 was α=35° (the optimal force transmission efficiency was measured experimentally), and the stiffness coefficient of the return spring 25 was k=8N / mm.

[0028] It should also be noted that a damper is added at the pivot 3 to give the angle adjustment a stepped feel, and a nylon shock-absorbing pad (Shore hardness 80A) is embedded in the locking groove 11.

[0029] Working process: When the user needs to adjust the angle of the handrail, the user overcomes the elastic potential energy of the return spring 25 and presses the pressing block 23. The pressing block 23 drives the push plate 24 to move laterally, and the push plate 24 drives the sliding column 22 to move laterally. Since the sliding column 22 is slidably installed in the inclined slide groove 211, the sliding column 22 pushes the locking plate 21 to move longitudinally, thereby causing the locking plate 21 to disengage from the locking groove 11, releasing the lock between the rotating part 2 and the fixed part 1. Then the user can manually turn the rotating part 2.

[0030] When the rotating part 2 rotates to a certain position, that is, when the locking plate 21 moves to the next locking groove 11, the pressing block 23 is released. Due to the elastic potential energy of the return spring 25, the pressing block 23 will return to the initial position, and the push plate 24 will also move laterally in the opposite direction. The push plate 24 drives the sliding column 22 to move laterally in the opposite direction, which in turn causes the sliding column 22 to push the locking plate 21 to move longitudinally in the opposite direction until the locking plate 21 is inserted into the locking groove 11, thus completing the locking after the angle adjustment of the gaming chair armrest.

[0031] In summary, the handrail angle adjustment mechanism of this utility model provides an innovative solution with broad market application prospects.

[0032] It should be noted that the parts not covered by this utility model are the same as or can be implemented using existing technology.

[0033] Furthermore, in the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art may make modifications or equivalent substitutions to the present utility model without departing from the spirit and scope of the present utility model's technical solution. Such modifications or equivalent substitutions, if they do not depart from the core design principles and functional characteristics of the present utility model, should be included within the scope of the technical solution claimed by the present utility model.

Claims

1. A handrail angle adjustment mechanism, comprising a handrail, characterized in that, The handrail consists of a fixed part (1) and a rotating part (2). The rotating part (2) can rotate around the fixed part via a pivot (3). It also has a locking structure, which includes a locking plate (21) disposed on the rotating part (2) and a locking groove (11) disposed on the fixed part (1). The locking plate (21) is inserted into the locking groove (11) to lock the rotating part (2) onto the fixed part (1). It also has a slanted groove sliding column linkage structure. The locking plate moving structure includes a sliding column (22) and an slanted sliding groove (211) provided on the locking plate (21). When the sliding column (22) slides laterally, the locking plate (21) moves longitudinally due to the presence of the slanted sliding groove (211). It also has a pressing block (23) and a push plate (24), the pressing block (23) and the push plate (24) are fixedly connected, and the sliding column (22) is fixed on the push plate (24); It also has a return spring (25) disposed between the pressing block (23) and the rotating part (2).

2. The armrest angle adjustment mechanism according to claim 1, characterized in that, The locking groove (11) is provided in three parts, and the angle difference between adjacent locking grooves (11) is 20 degrees.

3. The armrest angle adjustment mechanism according to claim 1, characterized in that, The inclination angle α of the inclined groove (211) satisfies 30°≤α≤45°.

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