Locking mechanism for a seat adjuster
By using a locking mechanism with a plug-in fixing method, the problems of easy jamming, easy damage, and limited adjustment levels of existing seat foot pedal adjusters are solved, realizing stable locking of the foot pedal and multi-level adjustment to meet the needs of different users.
Patent Information
- Application Number
- CN202522407960.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-13
AI Technical Summary
Existing seat foot pedal adjusters are usually locked by ratchet and pawl, which has problems such as easy jamming, easy damage to the pawl, limited adjustment range, and structural instability.
The foot pedal is fixed by plugging in, and the height and angle of the foot pedal are adjusted by the first locking component and the second locking component respectively. The locking is achieved by the sliding and rotation of the first and second plug rods in the plug hole, thus avoiding the use of ratchet and pawl.
The foot pedals are securely locked and can be freely adjusted in height and angle to suit different heights and postures, thus improving structural stability and service life.
Smart Images
Figure CN224671134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat technology, and in particular to a locking mechanism for a seat adjuster. Background Technology
[0002] Based on their performance characteristics, seats have evolved from the earliest fixed seats to multi-functional power-adjustable seats, including air-cushioned seats, electric seats, stereo seats, recovery seats, and electronically adjustable seats. They are also classified by material, such as leather seats and cloth seats, as well as seats for special users, such as child seats and racing seats.
[0003] Currently, the foot pedals installed on seats are usually unfolded and folded through an adjuster. They are folded for storage when not in use and unfolded when needed. However, the current foot pedal adjusters of seats usually lock the foot pedals with ratchet and pawl, which has problems such as ratchet and pawl being prone to jamming, pawl being easily damaged, limited adjustment range, and structural instability. Therefore, it is necessary to propose a locking mechanism for seat adjusters to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a locking mechanism for a seat adjuster, so as to solve the problems mentioned in the background art, that the existing seat foot pedal adjuster usually locks the position of the foot pedal by means of ratchet and pawl, which has the problems of ratchet and pawl being easy to jam, pawl being easy to be damaged, having few adjustment gears, and unstable structure.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a locking mechanism for a seat adjuster, comprising a seat body and an adjuster, wherein a storage groove is provided at the front end of the seat body, the adjuster is disposed inside the storage groove, the adjuster includes two fixed rods symmetrically distributed about the center line of the storage groove, the fixed rods are fixedly disposed at the top of the inner side of the storage groove, a movable rod is slidably disposed between the two fixed rods through a first locking assembly, and a limit plate is rotatably disposed on the side of the movable rod through a second locking assembly; The first locking assembly includes a plurality of first insertion holes formed inside the fixed rod, the plurality of first insertion holes being equidistantly arranged. The movable rod has a limiting hole that is slidably connected to the fixed rod inside. A sliding groove is formed in the middle of the movable rod, the sliding groove penetrating the upper surface of the movable rod. Movable slots are formed on both sides of the sliding groove, the movable slots communicating with the limiting hole. A first insertion rod is slidably disposed inside the movable slot, the first insertion rod being adapted to the first insertion hole. A push rod is fixedly disposed at one end of the first insertion rod located inside the sliding groove, the upper end of the push rod extending out of the upper surface of the movable rod, and a first spring is fixedly connected between the two push rods.
[0006] Preferably, the second locking assembly includes two connecting boxes respectively fixedly disposed at both ends of the movable rod, a rotating shaft rotatably disposed between the two connecting boxes, a limit plate fixedly disposed at the bottom of the front side of the movable rod, a fixed seat fixedly disposed at the outer ring of the rotating shaft, a foot pedal fixedly disposed on the side of the fixed seat, a driven plate fixedly connected to one end of the rotating shaft that movably extends into the connecting box, a plurality of second insertion holes evenly arranged in a ring fixedly disposed at the outer ring of the driven plate, a second spring fixedly disposed at the bottom of the limit plate, a pull plate fixedly disposed at the lower end of the second spring, and a second insertion rod fixedly disposed at both ends of the top of the pull plate, the two second insertion rods respectively movably extending into the interior of the two connecting boxes, and the upper end of the second insertion rod movably inserting into the interior of the second insertion hole.
[0007] Preferably, two symmetrically distributed support seats are fixedly provided on the front side of the movable rod, and the rotating shaft and the support seats are rotatably connected.
[0008] Preferably, there are several second springs arranged at equal intervals.
[0009] Preferably, the upper surface of the second insertion rod has an arc-shaped structure.
[0010] Preferably, in the initial state, the foot pedal is in a vertical state. After the foot pedal rotates 90 degrees around the central axis of the rotation shaft, the foot pedal is in a horizontal state, and the upper surface of the foot pedal and the limiting plate are in contact.
[0011] Preferably, the side of the foot pedal is fixedly provided with an anti-slip strip.
[0012] The technical effects and advantages of this utility model are as follows: The foot pedal in this invention does not require a ratchet and pawl fixing method. Instead, it uses a more robust plug-in fixing method and allows for free adjustment of the foot pedal support height and angle settings. This solves the problems of existing seat foot pedal adjusters, which typically use ratchet and pawl to lock the foot pedal position, resulting in ratchet and pawl jamming, easy damage to the pawl, limited adjustment settings, and unstable structure. With the installation of the first locking component, when it is necessary to adjust the support height of the foot pedal, the thumb and middle finger of one hand press against the two push rods respectively and push the two push rods closer to each other, thereby causing the first insert rod to disengage from the first socket. The other hand pushes the movable rod up and down to adjust the height of the foot pedal. After adjusting to the appropriate height, the two push rods are released. Under the elastic force of the first spring, the first insert rod is inserted into the first socket, thus fixing the position of the movable rod and locking the height of the foot pedal. This is suitable for users of different heights. With the installation of the second locking component, when it is necessary to adjust the support angle of the foot pedal, similarly, one hand pulls the pull plate down, and the other hand rotates the foot pedal to the appropriate angle. After releasing the pull plate, the second spring returns to its elasticity, and the pull plate and the second insert are pulled up, so that the second insert is inserted into the interior of the second socket, locking the driven plate and the rotating shaft, thereby locking the angle position of the foot pedal. Since there are multiple second sockets, multiple support angles can be adjusted to accommodate different user postures. Attached Figure Description
[0013] Figure 1 This is a three-dimensional view of the locking mechanism of a seat adjuster according to the present invention. Figure 2 This is a top-view three-dimensional structural diagram of the foot pedal of this utility model after it is lowered. Figure 3 This is a schematic diagram of the disassembled structure of the regulator and foot pedal of this utility model; Figure 4 This is a schematic cross-sectional view of the first locking component of this utility model; Figure 5 This is a cross-sectional structural diagram of the second locking component of this utility model.
[0014] In the diagram: 1. Seat body; 2. Storage slot; 3. Fixed rod; 4. Movable rod; 401. Slide groove; 402. Movable groove; 5. First insertion hole; 6. First insertion rod; 7. Push rod; 8. First spring; 9. Connecting box; 10. Support base; 11. Rotating shaft; 12. Driven plate; 13. Fixed base; 14. Foot pedal; 15. Limiting plate; 16. Second insertion hole; 17. Second spring; 18. Pull plate; 19. Second insertion rod; 20. Anti-slip strip. Detailed Implementation
[0015] 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.
[0016] This utility model provides, for example Figures 1-5The locking mechanism of a seat adjuster shown includes a seat body 1 and an adjuster. The front end of the seat body 1 has a storage groove 2. The adjuster is disposed inside the storage groove 2. The adjuster includes two fixed rods 3 symmetrically distributed about the center line of the storage groove 2. The fixed rods 3 are fixedly disposed on the top of the inner side of the storage groove 2. A movable rod 4 is slidably disposed between the two fixed rods 3 through a first locking assembly. A limit plate 15 is rotatably disposed on the side of the movable rod 4 through a second locking assembly.
[0017] The first locking assembly includes several first insertion holes 5 opened inside the fixed rod 3, which are equidistantly arranged. The movable rod 4 has a limiting hole that is slidably connected to the fixed rod 3. A sliding groove 401 is opened in the middle of the movable rod 4, which penetrates the upper surface of the movable rod 4. Movable grooves 402 are opened on both sides of the sliding groove 401, which are connected to the limiting hole. A first insertion rod 6 is slidably arranged inside the movable groove 402. The first insertion rod 6 is adapted to the first insertion hole 5. A push rod 7 is fixedly arranged at one end of the first insertion rod 6 inside the sliding groove 401. The upper end of the push rod 7 extends out of the upper surface of the movable rod 4. A first spring 8 is fixedly connected between the two push rods 7.
[0018] The second locking assembly includes two connecting boxes 9 fixedly mounted at both ends of the movable rod 4. A rotating shaft 11 is rotatably mounted between the two connecting boxes 9. A limit plate 15 is fixedly mounted at the bottom of the front side of the movable rod 4. A fixed seat 13 is fixedly mounted on the outer ring of the rotating shaft 11. A foot pedal 14 is fixedly mounted on the side of the fixed seat 13. A driven plate 12 is fixedly connected to one end of the rotating shaft 11 that extends movably into the connecting box 9. A number of second insertion holes 16 are fixedly opened on the outer ring of the driven plate 12 in a ring-shaped and uniform arrangement. A second spring 17 is fixedly mounted at the bottom of the limit plate 15. A number of second springs 17 are arranged equidistantly. A pull plate 18 is fixedly mounted at the lower end of the second spring 17. A second insertion rod 19 is fixedly mounted at both ends of the top of the pull plate 18. The two second insertion rods 19 extend movably into the interior of the two connecting boxes 9, and the upper ends of the second insertion rods 19 are movably inserted into the interior of the second insertion holes 16.
[0019] Specifically, when not in use, i.e. in the initial state, the foot pedal 14 is folded and stored in a vertical position, thus not occupying space. When in use, one hand pulls down the pull plate 18, causing the second insert rod 19 to move downwards. The second spring 17 is stretched, and after the second insert rod 19 moves downwards, it disengages from the second insert hole 16, thus removing the restriction on the rotating shaft 11 and the driven plate 12. At this time, the other hand rotates the foot pedal 14. When the foot pedal 14 rotates 90 degrees around the central axis of the rotating shaft 11, the foot pedal 14 is in a horizontal state, and the upper surface of the foot pedal 14 is in contact with the upper surface of the limiting plate 15, thus completing the unfolding operation. The limiting plate 15 limits its movement.
[0020] When it is necessary to adjust the support angle of the foot pedal 14, similarly, one hand pulls the pull plate 18 down, and the other hand rotates the foot pedal 14 to the appropriate angle. After releasing the pull plate 18, the second spring 17 returns to its elasticity, and the pull plate 18 and the second insert rod 19 are pulled up, so that the second insert rod 19 is inserted into the interior of the second socket 16, locking the driven plate 12 and the rotating shaft 11, thereby locking the angle position of the foot pedal 14. Since there are multiple second sockets 16, multiple support angles can be adjusted to accommodate different user postures.
[0021] When it is necessary to adjust the support height of the foot pedal 14, the thumb and middle finger of one hand press against the two push rods 7 respectively and push the two push rods 7 closer to each other, so that the first insertion rod 6 disengages from the first insertion hole 5. The other hand pushes the movable rod 4 up and down to adjust the height of the foot pedal 14. After adjusting to the appropriate height, the two push rods 7 are released. Under the elastic force of the first spring 8, the first insertion rod 6 is inserted into the first insertion hole 5, which completes the fixation of the position of the movable rod 4, thereby locking the height position of the foot pedal 14, which is suitable for users of different heights.
[0022] In summary, the foot pedal 14 in this utility model does not require a ratchet and pawl fixing method. Instead, it uses a more robust plug-in fixing method. Furthermore, the height and angle of the foot pedal 14 can be freely adjusted. This solves the problems of existing seat foot pedal 14 adjusters, which typically use ratchet and pawl to lock the position of the foot pedal 14. These problems include ratchet and pawl jamming, easy damage to the pawl, limited adjustment ranges, and unstable structure.
[0023] Furthermore, two symmetrically distributed support seats 10 are fixedly installed on the front side of the movable rod 4. The rotating shaft 11 is rotatably connected to the support seats 10. Through the setting of the support seats 10, the rotating shaft 11 can be further supported, thereby improving the stability of the rotation of the rotating shaft 11.
[0024] Furthermore, the upper surface of the second insertion rod 19 has an arc-shaped structure, which allows the second insertion rod 19 to be inserted more smoothly into the interior of the second insertion hole 16. Furthermore, anti-slip strips 20 are fixedly provided on the side of the foot pedal 14 to increase the friction between the foot pedal 14 and the user's foot.
[0025] Working Principle: When not in use, i.e., in its initial state, the foot pedal 14 is folded and stored vertically, thus not occupying space. In use, one hand pulls down the pull plate 18, causing the second insert rod 19 to move downwards. The second spring 17 is stretched, and the second insert rod 19 disengages from the second insertion hole 16, releasing the restriction on the rotating shaft 11 and the driven plate 12. At this time, the other hand rotates the foot pedal 14. When the foot pedal 14 rotates 90 degrees around the central axis of the rotating shaft 11, the foot pedal 14 is in a horizontal state, and the upper surface of the foot pedal 14 is in contact with the upper surface of the limiting plate 15, thus completing the unfolding operation. The limiting plate 15 limits its movement. When it is necessary to adjust the support angle of the foot pedal 14, similarly, one hand pulls down the pull plate 18, and the other hand rotates the foot pedal 14 to the appropriate angle. After releasing the pull plate 18, the second spring 17 returns to its elasticity, and the pull plate... Pulling the second insertion rod 18 and the second insertion rod 19 upwards causes the second insertion rod 19 to insert into the interior of the second insertion hole 16, locking the driven plate 12 and the rotating shaft 11, thereby locking the angle position of the foot pedal 14. Since there are multiple second insertion holes 16, multiple support angles can be adjusted to accommodate different user postures. When it is necessary to adjust the support height of the foot pedal 14, the thumb and middle finger of one hand press against the two push rods 7 respectively and push the two push rods 7 closer to each other, thereby causing the first insertion rod 6 to disengage from the first insertion hole 5. The other hand pushes the movable rod 4 up and down to adjust the height of the foot pedal 14. After adjusting to a suitable height, the two push rods 7 are released. Under the elastic force of the first spring 8, the first insertion rod 6 is inserted into the interior of the first insertion hole 5, completing the fixation of the position of the movable rod 4, thereby locking the height position of the foot pedal 14, which is suitable for users of different heights.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A locking mechanism for a seat adjuster, comprising a seat body (1) and an adjuster, characterized in that: The front end of the seat body (1) is provided with a storage groove (2). The adjuster is located inside the storage groove (2). The adjuster includes two fixed rods (3) symmetrically distributed about the center line of the storage groove (2). The fixed rods (3) are fixedly located on the top of the inner side of the storage groove (2). A movable rod (4) is slidably provided between the two fixed rods (3) through a first locking assembly. A limit plate (15) is rotatably provided on the side of the movable rod (4) through a second locking assembly. The first locking assembly includes several first insertion holes (5) opened inside the fixed rod (3), and the several first insertion holes (5) are equidistantly distributed. The movable rod (4) has a limiting hole that is slidably connected to the fixed rod (3). A sliding groove (401) is opened in the middle of the movable rod (4). The sliding groove (401) penetrates the upper surface of the movable rod (4). Movable grooves (402) are opened on both sides of the sliding groove (401). The movable grooves (402) are connected to the limiting hole. A first insertion rod (6) is slidably arranged inside the movable groove (402). The first insertion rod (6) is adapted to the first insertion hole (5). A push rod (7) is fixedly arranged at one end of the first insertion rod (6) inside the sliding groove (401). The upper end of the push rod (7) extends out of the upper surface of the movable rod (4). A first spring (8) is fixedly connected between the two push rods (7).
2. The locking mechanism of a seat adjuster according to claim 1, characterized in that: The second locking assembly includes two connecting boxes (9) respectively fixedly disposed at both ends of the movable rod (4), a rotating shaft (11) rotatably disposed between the two connecting boxes (9), a limit plate (15) fixedly disposed at the bottom of the front side of the movable rod (4), a fixed seat (13) fixedly disposed at the outer ring of the rotating shaft (11), a foot pedal (14) fixedly disposed on the side of the fixed seat (13), and a driven plate (12) fixedly connected to one end of the rotating shaft (11) that extends movably into the connecting box (9). A number of second insertion holes (16) are fixedly opened on the outer ring of the driven plate (12) and are evenly distributed in a ring. A second spring (17) is fixedly installed at the bottom of the limiting plate (15). A pull plate (18) is fixedly installed at the lower end of the second spring (17). A second insertion rod (19) is fixedly installed at both ends of the top of the pull plate (18). The two second insertion rods (19) are respectively moved into the interior of the two connecting boxes (9), and the upper end of the second insertion rod (19) is moved into the interior of the second insertion hole (16).
3. The locking mechanism of a seat adjuster according to claim 2, characterized in that: Two symmetrically distributed support seats (10) are fixedly provided on the front side of the movable rod (4), and the rotating shaft (11) and the support seats (10) are rotatably connected.
4. The locking mechanism of a seat adjuster according to claim 2, characterized in that: The second spring (17) is provided in several units, and the several second springs (17) are arranged at equal intervals.
5. The locking mechanism of a seat adjuster according to claim 2, characterized in that: The upper surface of the second insert (19) has an arc-shaped structure.
6. The locking mechanism of a seat adjuster according to claim 2, characterized in that: In the initial state, the foot pedal (14) is in a vertical state. After the foot pedal (14) rotates ninety degrees around the central axis of the rotating shaft (11), the foot pedal (14) is in a horizontal state, and the upper surface of the foot pedal (14) and the limiting plate (15) are in contact.
7. The locking mechanism of a seat adjuster according to claim 6, characterized in that: The foot pedal (14) is fixedly provided with anti-slip strips (20) on its side.