Novel angle adjusting assembly
By combining the design of limiting components and torsion springs, the problem of complex operation of existing chair angle adjustment mechanisms is solved, realizing step-by-step angle adjustment and automatic fixing, simplifying the operation process and improving the user experience.
Patent Information
- Application Number
- CN202423320500.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing chair angle adjustment mechanisms are complex to operate and require additional securing during use to prevent the backrest from returning to a horizontal position.
A novel angle adjustment component is designed, which uses a combination of a limiting element and a torsion spring. The angle is gradually adjusted and automatically fixed by the meshing of the limiting element with the adjusting teeth. The linkage plate drives the limiting element to rotate so as to achieve flexible adjustment of the angle.
It achieves simple and convenient angle adjustment and automatic fixing, simplifies the operation process, requires no additional fasteners, and is stable and reliable.
Smart Images
Figure CN223614434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding recliner technology, and specifically to a novel angle adjustment component. Background Technology
[0002] Existing chairs can adjust the angle between the backrest and the seat using an angle adjuster installed on the chair. During the manufacturing process, the angle adjuster needs to adjust the backrest to a horizontal position (180 degrees between the backrest and the seat) to save as much loading space as possible. However, during consumer use, the backrest generally does not need to be in a horizontal position. Therefore, the angle adjuster needs to be able to restrict the backrest during use so that it does not return to a horizontal position.
[0003] For example, Chinese Utility Model Patent No. 2019217313586 discloses an intelligent folding recliner, including a frame and a cover set on the frame. The frame includes a horizontal bar, vertical bars connected to the horizontal bar, and diagonal bars hinged to the ends of the horizontal bar. There are three sets of vertical bars. The horizontal bar includes a front bar and a rear bar connected to the diagonal bar. The front bar and the rear bar are connected by a connecting cover. The top of the middle set of vertical bars is fixedly connected to the connecting cover. The ends of the front bar and the rear bar are rotatably connected to the connecting cover by a rotating shaft. The connecting cover is provided with a positioning component to fix the position of the horizontal bar. The ends of the diagonal bars are provided with two elastic plates, forming a connecting groove between the elastic plates. A rotating shaft is provided in the connecting groove. The top of the vertical bar connected to the rear bar and the end of the rear bar are rotatably installed in the connecting groove by the rotating shaft. The end of the rotating shaft extends outside the connecting groove and is formed with an external thread. A wing nut is installed on the rotating shaft. The wing nut and the rotating shaft are threaded together and abut against the elastic plate.
[0004] The angle adjustment mechanism of this recliner is complicated to operate. After adjusting the angle, the wing nut needs to be tightened to prevent rotation and fix it in place. Therefore, further improvements to the structure are needed. Utility Model Content
[0005] The purpose of this invention is to provide a novel angle adjustment component that solves the problem of complex operation in existing structures by using a limiting component.
[0006] The purpose of this utility model is achieved as follows: A novel angle adjustment component includes a rotating part one and a rotating part two. One end of the rotating part one is formed with a mounting part, and one end of the rotating part two is formed with a circular rotating part. A rotating shaft one is provided between the circular rotating part and the mounting part. The outer periphery of the circular rotating part is formed with a plurality of adjusting teeth. The rotating shaft two is provided inside the mounting part. A limiting member is rotatably provided on the outer periphery of the rotating shaft two. A torsion spring abuts between the limiting member and the mounting part. One end of the limiting member is formed with a toothed groove for the adjusting teeth to engage. A linkage plate is installed on the outer periphery of the rotating shaft one. A free stroke portion is opened on one side of the linkage plate. One end of the free stroke portion is formed with a locking part for pushing the limiting member to rotate. A pushing member for pushing the linkage plate to rotate is provided inside the circular rotating part.
[0007] Preferably, one end of the rotating component has two mounting portions, and a mounting cavity is formed between the two mounting portions. A circular rotating portion and a limiting component are respectively provided in the mounting cavity.
[0008] Preferably, one end of the rotating component two is formed with two circular rotating parts, and a mounting cavity two is formed between the two circular rotating parts. A linkage plate and a pushing component are respectively arranged in the mounting cavity two.
[0009] Preferably, the other ends of the first rotating component and the second rotating component are respectively formed with connecting pipes.
[0010] Preferably, the limiting member has a first shaft hole, and the mounting part has a second shaft hole.
[0011] Preferably, the circular rotating part has a shaft hole three, the linkage plate has a shaft hole four, and the mounting part has a shaft hole five.
[0012] The outstanding and beneficial technical effects of this utility model compared to the prior art are:
[0013] 1. This utility model, through the design of the limiting component, can realize the step-by-step adjustment of the angle. Furthermore, through the force of the torsion spring, the adjusting tooth can be automatically locked in the tooth groove. Without the influence of external force, the relative rotation between the rotating component one and the rotating component two is restricted, thereby achieving automatic angle fixing. This operation is simple and convenient, and there is no need to use other fixing components to limit the angle.
[0014] 2. Through the design of the linkage plate, when the rotating part rotates to the maximum angle or the set angle in one direction, it can push the limiting part to rotate away from the adjusting teeth. At this time, the circular rotating part can rotate arbitrarily in both directions without being affected by the adjusting teeth. Then, when the rotating part rotates to the other direction, when it rotates to the set angle, the limiting part can be automatically reset, and the circular rotating part and the limiting part re-engage, so that the angle can be adjusted step by step. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a schematic diagram of the exploded structure of the part of this utility model.
[0017] Figure 3 This is a schematic diagram of the structure of the present invention during rotation. Figure 1 .
[0018] Figure 4 This is a schematic diagram of the structure of the present invention during rotation. Figure 2 .
[0019] Figure 5 This is a schematic diagram of the structure of the present invention during rotation. Figure 3 .
[0020] Figure 6 This is a schematic diagram of the structure of the present invention during rotation. Figure 4 .
[0021] Reference numerals: 1-Rotating component one; 2-Rotating component two; 3-Mounting part; 4-Circular rotating part;
[0022] 5-Shaft 1; 6-Adjusting gear; 7-Shaft 2; 8-Limiting component; 9-Torsion spring; 10-Gear groove; 11-Linking plate; 12-Free travel section; 13-Snap-fit section; 14-Pushing component; 15-Mounting cavity 1; 16-Mounting cavity 2;
[0023] 17-Connecting pipe; 18-Shaft hole one; 19-Shaft hole two; 20-Shaft hole three; 21-Shaft hole four; 22-Shaft hole five. Detailed Implementation
[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0025] Combination Figure 1-6 A novel angle adjustment component includes a rotating part 1 and a rotating part 2. One end of the rotating part 1 has a mounting portion 3, and one end of the rotating part 2 has a circular rotating portion 4. A rotating shaft 5 is provided between the circular rotating portion 4 and the mounting portion 3 to achieve a rotatable connection between them. The outer periphery of the circular rotating portion 4 has several adjusting teeth 6. A rotating shaft 7 is provided inside the mounting portion 3. A limiting member 8 is rotatably provided on the outer periphery of the rotating shaft 7. A torsion spring 9 abuts against the limiting member 8 and the mounting portion 3. One end of the limiting member 8 has a toothed groove 10 for the adjusting teeth 6 to engage. (See details...) Figure 4Normally, when rotating component 1 or rotating component 2, the circular rotating part 4 slides on the surface of the tooth groove 10 through the adjusting tooth 6, thereby realizing the step-by-step adjustment of the angle. After being released, the adjusting tooth 5 can be automatically locked in the tooth groove 10 by the force of the torsion spring 9, thereby restricting the relative rotation between rotating component 1 and rotating component 2, realizing the automatic fixing of the angle. Furthermore, through the cooperative design of the adjusting tooth 6 and the tooth groove 10, the circular rotating part 4 can only maintain counterclockwise rotation, while restricting its rotation in the opposite direction.
[0026] A linkage plate 11 is mounted on the outer periphery of the rotating shaft 5. A free travel portion 12 is provided on one side of the linkage plate 11. One end of the free travel portion 12 is formed with a snap-fit portion 13 for pushing the limiting member 8 to rotate. A pushing member 14 for pushing the linkage plate 11 to rotate is provided inside the circular rotating part 4. (See details...) Figure 5 When the rotating part rotates to the maximum angle, the pushing part 14 will abut against the upper side of the idle stroke part 12, thereby pushing the linkage plate 11 to rotate counterclockwise, which in turn causes the locking part 13 to push the limiting part 8 to rotate away from the adjusting tooth 6 and lock in the tooth groove 10, so that the meshing between the tooth groove 10 of the limiting part 8 and the adjusting tooth 6 is separated. At this time, the circular rotating part 4 can rotate arbitrarily without being affected by the adjusting tooth 6.
[0027] See details Figure 6 In this state, the circular rotating part 4 can be rotated in the opposite direction to make the pushing part 14 abut against the lower side of the idle stroke part 12, thereby pushing the linkage piece 11 to rotate clockwise, and then making the locking part 13 disengage from the tooth groove 10. The limiting part 8 automatically rotates and resets by the elastic force of the torsion spring, and can re-engage with the adjusting tooth.
[0028] This utility model, through the design of the limiting component, can achieve step-by-step adjustment of the angle. Furthermore, through the force of the torsion spring 9, the adjusting tooth 5 can be automatically locked in the tooth groove 10. Without the influence of external force, the relative rotation between the rotating part 1 and the rotating part 2 is restricted, thereby achieving automatic angle fixation. This operation is simple and convenient, and there is no need to use other fixing components to limit the angle.
[0029] This utility model, through the design of the linkage plate, can push the limiting member 8 to rotate away from the adjusting tooth 6 when the rotating member rotates to the maximum angle or the set angle in one direction. At this time, the circular rotating part 4 can rotate arbitrarily in both directions without being affected by the adjusting tooth 6. Then, when the rotating member rotates to the other direction, when it rotates to the set angle, the limiting member 8 can be automatically reset, and the circular rotating part 4 and the limiting member 8 will re-engage, allowing for step-by-step adjustment of the angle.
[0030] Combination Figure 1 and Figure 2The rotating component 1 has two mounting parts 3 formed at one end, and a mounting cavity 15 is formed between the two mounting parts 3. A circular rotating part 4 and a limiting part 8 are respectively provided in the mounting cavity 15. This structure is stable and reliable.
[0031] Combination Figure 1 and Figure 2 The rotating component 2 has two circular rotating parts 4 formed at one end, and a mounting cavity 16 is formed between the two circular rotating parts 4. A linkage plate 11 and a pushing component 14 are respectively arranged in the mounting cavity 16. This structure is stable and reliable and easy to assemble.
[0032] The other ends of the rotating component 1 and the rotating component 2 are respectively formed with connecting pipes 17, so as to connect to the steel pipes on the chair.
[0033] See details Figure 2 The limiting member 8 has a shaft hole 18, and the mounting part 3 has a shaft hole 19. A rotating shaft 7 passes through the shaft hole 18 and the shaft hole 19 to achieve a rotational connection between the limiting member 8 and the mounting part 3.
[0034] See details Figure 2 The circular rotating part 4 has a shaft hole 20, the linkage plate 11 has a shaft hole 21, and the mounting part 3 has a shaft hole 19. A rotating shaft 5 passes through the shaft holes 20, 21, and 19 to achieve a rotating connection between the circular rotating part 4, the linkage plate 11, and the mounting part 3.
[0035] 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. A novel angle adjustment component, characterized in that, It includes a rotating component one (1) and a rotating component two (2). One end of the rotating component one (1) is formed with a mounting part (3), and one end of the rotating component two (2) is formed with a circular rotating part (4). A rotating shaft one (5) is provided between the circular rotating part (4) and the mounting part (3). The outer periphery of the circular rotating part (4) is formed with several adjusting teeth (6). The mounting part (3) is provided with a rotating shaft two (7). The outer periphery of the rotating shaft two (7) is rotatably provided with a limiting member (8). The limiting member (8) and the mounting part are connected. A torsion spring (9) abuts between the mounting parts (3). One end of the limiting member (8) is formed with a toothed groove (10) for the adjusting tooth (6) to engage. A linkage plate (11) is installed on the outer periphery of the rotating shaft (5). A free stroke portion (12) is provided on one side of the linkage plate (11). One end of the free stroke portion (12) is formed with a locking portion (13) for pushing the limiting member (8) to rotate. A pusher (14) for pushing the linkage plate (11) to rotate is provided inside the circular rotating part (4).
2. The novel angle adjustment component according to claim 1, characterized in that: One end of the rotating part (1) is formed with two mounting parts (3), and a mounting cavity (15) is formed between the two mounting parts (3). A circular rotating part (4) and a limiting part (8) are respectively provided in the mounting cavity (15).
3. The novel angle adjustment component according to claim 1 or 2, characterized in that: One end of the rotating part 2 (2) is formed with two circular rotating parts (4), and a mounting cavity 2 (16) is formed between the two circular rotating parts (4). A linkage plate (11) and a pusher (14) are respectively provided in the mounting cavity 2 (16).
4. The novel angle adjustment component according to claim 1, characterized in that: The other ends of the rotating component one (1) and the rotating component two (2) are respectively formed with connecting pipes (17).
5. The novel angle adjustment component according to claim 1, characterized in that: The limiting member (8) has a shaft hole (18) and the mounting part (3) has a shaft hole (19).
6. The novel angle adjustment component according to claim 1, characterized in that: The circular rotating part (4) has a shaft hole three (20), the linkage plate (11) has a shaft hole four (21), and the mounting part (3) also has a shaft hole five (19).