Silent gear regulator

Abstract

The utility model provides a silent gear regulator which comprises a regulating assembly and a regulating sleeve, the regulating assembly is arranged in the regulating sleeve in a drawable mode, a ratchet portion is arranged in the regulating sleeve, the regulating assembly is provided with a rotatable pawl, the ratchet portion is located on one side of the pawl, and the ratchet portion is located on the other side of the pawl. A pawl of the adjusting assembly is matched with a ratchet part in the adjusting sleeve, the adjusting assembly is pulled out of or pushed into the adjusting sleeve, the adjusting assembly is pulled, the pawl is separated from the ratchet part, the adjusting assembly is pushed, the pawl is clamped into the ratchet part, and movement of the adjusting assembly in the pushing direction is limited. Or when the adjusting assembly is pushed, the pawl is separated from the ratchet part, when the adjusting assembly is pulled, the pawl is clamped into the ratchet part, and the movement of the adjusting assembly in the pulling-out direction is limited. The gear adjusting device can be used for being connected between two parts, and gear adjustment of the distance between the two parts is achieved.

Description

Technical Field

[0001] This utility model relates to the field of distance adjustment accessories, and in particular to a silent gear adjuster. Background Technology

[0002] In products such as chairs, sofas, and headboards, some backrests, armrests, or headrests require height or fore-aft adjustment. In such cases, a gear adjuster can be used to adjust the corresponding functions. This utility model aims to provide a new type of gear adjuster. Utility Model Content

[0003] In view of the above-mentioned prior art, the purpose of this utility model is to provide a silent gear adjuster that can be used to adjust the distance between two components by gear.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] This utility model provides a silent gear adjuster, including an adjusting component and an adjusting sleeve. The adjusting component is retractably installed in the adjusting sleeve, and a ratchet portion is provided inside the adjusting sleeve. The adjusting component has a rotatable pawl, and the ratchet portion is located on one side of the pawl. The pawl of the adjusting component engages with the ratchet portion inside the adjusting sleeve. When the adjusting component is pulled out or pushed in from the adjusting sleeve, pulling the adjusting component causes the pawl to disengage from the ratchet portion, pushing the adjusting component causes the pawl to engage with the ratchet portion, and the movement of the adjusting component in the pushing direction is restricted; or, pushing the adjusting component causes the pawl to disengage from the ratchet portion, pulling the adjusting component causes the pawl to engage with the ratchet portion, and the movement of the adjusting component in the pulling direction is restricted.

[0006] Furthermore, in the aforementioned silent gear adjuster, the adjusting component includes an adjusting handle and an adjusting block. The adjusting handle is retractably mounted in the adjusting sleeve, the adjusting block is located in the adjusting sleeve and rotatably connected to one end of the adjusting handle, and the pawl is located on the adjusting block.

[0007] Furthermore, in the silent gear adjuster, the adjusting component further includes an auxiliary member for constraining the rotation range of the adjusting block, the auxiliary member being connected to the adjusting block.

[0008] Furthermore, in the aforementioned silent gear adjuster, the adjusting block is provided with a guide post, and the auxiliary component is provided with a guide groove. The guide post moves within the guide groove. When the guide post is in the first position of the guide groove, the pawl of the adjusting block engages with the ratchet portion. Moving the adjusting handle causes the adjusting block to rotate, and the pawl of the adjusting block disengages from the ratchet portion. When the guide post moves to the second position of the guide groove, further movement of the guide post is restricted. Further movement of the adjusting handle drives the adjusting block to move within the adjusting sleeve. The adjusting block drives the auxiliary component to move via the guide post.

[0009] Furthermore, in the aforementioned silent gear adjuster, the guide groove includes a front guide groove and a rear guide groove, with a bayonet provided between the front guide groove and the rear guide groove, and the front guide groove and the rear guide groove are connected by the bayonet. The adjusting sleeve has a stop portion, which is located on the moving path of the auxiliary member. The adjusting block drives the auxiliary member to move to the location of the stop portion, and the auxiliary member abuts against the stop portion, thus limiting the continued movement of the auxiliary member. However, under the action of external force, the adjusting block continues to move, and the guide post passes through the bayonet.

[0010] Furthermore, in the aforementioned silent gear adjuster, the auxiliary member is movably connected to the adjusting handle, and the adjusting handle is provided with a limiting part for limiting the range of movement of the auxiliary member relative to the adjusting handle.

[0011] Furthermore, in the aforementioned silent gear adjuster, the guide posts are a pair, respectively disposed on the top and bottom surfaces of the adjusting block, and the guide grooves are a pair, respectively assembled and connected to the guide posts on the top and bottom surfaces of the adjusting block.

[0012] Furthermore, in the aforementioned silent gear adjuster, the auxiliary component includes an upper cover and a lower cover, the adjusting block is disposed between the upper cover and the lower cover, and a notch for the pawl to extend or retract is provided on one side of the auxiliary component.

[0013] Furthermore, in the aforementioned silent gear adjuster, the auxiliary component has a movable cavity, the adjusting block is located within the movable cavity, one end of the adjusting handle has a sliding head, the sliding head moves within the movable cavity, and the adjusting block is located within the movable cavity and hinged to the sliding head.

[0014] Furthermore, in the aforementioned silent gear adjuster, the adjusting sleeve includes an upper shell, a lower shell, and a pair of clamping bars. The clamping bars are clamped between the upper and lower shells, and the two clamping bars are spaced apart. The adjusting handle and the auxiliary actuator are installed between the clamping bars and slide between the two clamping bars. The adjusting handle is straight, and the auxiliary actuator is block-shaped. The ratchet is located on the inner side of one clamping bar. One end of the clamping bar is provided with a stop block, which is also clamped between the upper and lower shells. The stop block has a pull-out opening for the adjusting handle to be pulled out or pushed in. At the other end of the clamping bar, the upper and lower shells have plugs. The plugs and the stop block limit the movement of the auxiliary actuator. The adjusting block has a circular protruding end, and the sliding head has a rotating recess. The circular protruding end is installed in the rotating recess. Between the protruding end and the adjusting block is a rotating arm. The rotating recess has an opening, and the rotating arm moves within the opening. The opening restricts the rotation range of the rotating arm.

[0015] Compared to existing technologies, this utility model provides a silent gear adjuster, including an adjusting component and an adjusting sleeve. The adjusting component is retractably installed in the adjusting sleeve, and a ratchet portion is provided inside the adjusting sleeve. The adjusting component has a rotatable pawl, with the ratchet portion located on one side of the pawl. The pawl of the adjusting component engages with the ratchet portion inside the adjusting sleeve. Pulling the adjusting component out of the adjusting sleeve causes the pawl to disengage from the ratchet portion; pushing the adjusting component causes the pawl to engage with the ratchet portion, restricting the movement of the adjusting component in the pushing direction. Alternatively, pushing the adjusting component causes the pawl to disengage from the ratchet portion; pulling the adjusting component causes the pawl to engage with the ratchet portion, restricting the movement of the adjusting component in the pulling direction. This utility model can be used to connect two components to achieve gear adjustment of the distance between the two components. Attached Figure Description

[0016] Figure 1 A schematic diagram of the silent gear adjuster provided by this utility model.

[0017] Figure 2 A schematic diagram of the internal structure of the silent gear adjuster provided by this utility model when the guide column is in the first position.

[0018] Figure 3 A schematic diagram of the internal structure of the silent gear adjuster provided by this utility model when the guide column is in the second position.

[0019] Figure 4 An exploded view of the silent gear adjuster provided by this utility model.

[0020] Figure 5This is a cross-sectional structural diagram of the silent gear adjuster provided by this utility model.

[0021] Attached image annotations:

[0022] Adjustment component 11

[0023] Adjusting sleeve 12

[0024] Ratchet 13

[0025] 14 thorns

[0026] Adjusting handle 15

[0027] Adjusting block 16

[0028] Auxiliary component 17

[0029] Guide column 18

[0030] Guide groove 19

[0031] First position 20

[0032] Second position 21

[0033] Leading groove 22

[0034] Rear guide groove 23

[0035] Checkpoint 24

[0036] Blocking part 25

[0037] Block 26

[0038] 27 plugs

[0039] Top cover 28

[0040] Bottom cover 29

[0041] Gap 30

[0042] Limiting part 31

[0043] Limiting groove 32

[0044] Movable cavity 33

[0045] Sliding head 34

[0046] Top shell 35

[0047] Lower shell 36

[0048] 37 strips

[0049] 38 protruding end

[0050] Rotate the circular socket 39

[0051] Opening 40

[0052] Connecting ring 41 Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0054] It should be noted that when a component is referred to as being "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0055] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0056] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model provides a silent gear adjuster, including an adjusting component 11 and an adjusting sleeve 12. The adjusting component 11 is retractably installed in the adjusting sleeve 12. A ratchet portion 13 is provided inside the adjusting sleeve 12. The adjusting component 11 has a rotatable pawl 14. The ratchet portion 13 is located on one side of the pawl 14. The pawl 14 of the adjusting component 11 engages with the ratchet portion 13 inside the adjusting sleeve 12. When the adjusting component 11 is pulled out or pushed in from the adjusting sleeve 12, pulling the adjusting component 11 causes the pawl 14 to disengage from the ratchet portion 13. Pushing the adjusting component 11 causes the pawl 14 to engage with the ratchet portion 13, thus restricting the movement of the adjusting component 11 in that direction. Alternatively, pushing the adjusting component 11 causes the pawl 14 to disengage from the ratchet portion 13. Pulling the adjusting component 11 causes the pawl 14 to engage with the ratchet portion 13, thus restricting the movement of the adjusting component 11 in that direction. This invention can be used to connect two components to adjust the distance between them.

[0057] The adjustment component 11 can be pulled out or pushed in from the adjustment sleeve 12. Whether the adjustment component 11 is pulled, the pawl 14 disengages from the ratchet portion 13, and the adjustment component 11 is pushed, the pawl 14 engages in the ratchet portion 13, and the movement of the adjustment component 11 in that direction is restricted; or the adjustment component 11 is pushed, the pawl 14 disengages from the ratchet portion 13, and the adjustment component 11 is pulled, the pawl 14 engages in the ratchet portion 13, and the movement of the adjustment component 11 in that direction is restricted, both are unidirectional adjustments with different directions. One is a push-type gear adjustment, and the other is a pull-out type gear adjustment. Those skilled in the art can choose the adjustment direction as needed. As an example, this embodiment uses a pull-out type gear adjustment, meaning that the gear adjuster can be pulled out from the adjustment sleeve 12 when pulled out, and is restricted when pushed in. Furthermore, the silent gear adjuster provided by this utility model includes an adjusting component 11 comprising an adjusting handle 15 and an adjusting block 16. The adjusting handle 15 is retractably mounted in the adjusting sleeve 12. The adjusting block 16 is located in the adjusting sleeve 12 and rotatably connected to one end of the adjusting handle 15. A pawl 14 is located on the adjusting block 16. The adjusting block 16 is connected to one end of the adjusting handle 15, generally in a hinged form. The pawl 14 is integrally formed with the adjusting block 16, with the pawl 14 located on one side of the adjusting block 16, and the ratchet tooth 13 located inside the adjusting sleeve 12 on the side near the pawl 14. In this embodiment, the adjusting handle 15 is mainly in the form of a straight handle, which can realize distance adjustment in a straight line. Of course, the adjusting handle 15 can also be in the form of an arc, etc., so that the direction angle can also change while adjusting the distance.

[0058] Please combine further Figure 4 , Figure 5 Referring further, the silent gear adjuster provided by this utility model includes an auxiliary member 17 for constraining the rotation range of the adjusting block 16 in the adjusting assembly 11. The auxiliary member 17 is connected to the adjusting block 16. In some cases, the auxiliary member 17 can be a damping spring connected between the adjusting handle 15 and the adjusting block 16, which can cause the adjusting block 16 to slowly rebound. Thus, when the adjusting handle 15 is pulled, the pawl 14 gradually moves away from the ratchet 13 in the clockwise direction. The adjusting block 16 rotates, compressing the damping spring, and the pawl 14 disengages from the ratchet 13. Under the action of the damping spring, the adjusting block 16 is slowly pushed. After the pulling of the adjusting handle 15 stops, the pawl 14 slowly engages the corresponding gear, that is, the corresponding ratchet 13.

[0059] Specifically, in the silent gear adjuster provided by this utility model, the adjusting block 16 of this embodiment is provided with a guide post 18, and the auxiliary member 17 is provided with a guide groove 19. The guide post 18 moves in the guide groove 19. When the guide post 18 is located at the first position 20 of the guide groove 19, the pawl 14 of the adjusting block 16 is engaged in the ratchet portion 13. The adjusting handle 15 is moved, causing the adjusting block 16 to rotate. The pawl 14 of the adjusting block 16 disengages from the ratchet portion 13. When the guide post 18 moves to the second position 21 of the guide groove 19, the continued movement of the guide post 18 is restricted. The continued movement of the adjusting handle 15 drives the adjusting block 16 to move in the adjusting sleeve 12. The adjusting block 16 drives the auxiliary member 17 to move through the guide post 18. When the adjusting handle 15 is pulled, the adjusting block 16 is pulled and rotates, causing the pawl 14 to disengage from the ratchet portion 13. The adjusting block 16 is connected to the auxiliary member 17 with limited movement. When the guide post 18 moves to the second position 21, the adjusting handle 15 pulls the adjusting block 16, and the adjusting block 16 will not continue to rotate. The adjusting block 16 will drive the auxiliary member 17 to move. Conversely, when the adjusting handle 15 is pushed forward, the auxiliary member 17 remains stationary, and the adjusting block 16 is pushed forward and rotates towards the ratchet portion 13 until the guide post 18 moves to the first position 20. Further movement of the guide post 18 in this direction is also limited. Then, the adjusting handle 15 pushes the auxiliary member 17 to move together. It should be noted that there is static friction between the auxiliary member 17 and the adjusting sleeve 12. This static friction is large enough that when the guide post 18 moves in the guide groove 19, the auxiliary member 17 remains stationary in the adjusting sleeve 12.

[0060] To further achieve gear shifting, the present invention provides a silent gear shifter. The guide groove 19 includes a front guide groove 22 and a rear guide groove 23. A bayonet 24 is provided between the front guide groove 22 and the rear guide groove 23, and the front guide groove 22 and the rear guide groove 23 are connected by the bayonet 24. The adjusting sleeve 12 has a stop part 25, which is located on the moving path of the auxiliary member 17. The adjusting block 16 drives the auxiliary member 17 to move to the location of the stop part 25. The auxiliary member 17 abuts against the stop part 25, and the continued movement of the auxiliary member 17 is restricted. However, under the action of external force, the adjusting block 16 continues to move. The guide post 18 passes through the bayonet 24. The width of the latch 24 is smaller than the diameter of the guide post 18. Therefore, when the guide post 18 needs to pass through the latch 24, a sufficiently large external force must be applied, working in conjunction with the stop 25, to deform the latch 24 or the guide post 18, allowing it to pass through. This invention cleverly utilizes the front guide groove 22 and the rear guide groove 23. The front guide groove 22 is used for adjusting the gear during unidirectional pulling. The first position 20 and the second position 21 are located at opposite ends of the front guide groove 22. After the guide post 18 is engaged in the rear guide groove 23, the latch 24 restricts the guide post 18 from entering the front guide groove 22. Therefore, when the adjusting handle 15 is pushed forward, the adjusting block 16 is pushed forward, while the guide post 18 is restricted at the latch 24. In this state, with the pawl 14 away from the ratchet 13, the adjusting handle 15 can push the auxiliary member 17 back to its original position.

[0061] Furthermore, in the silent gear shifter provided by this utility model, the auxiliary actuator 17 is movably connected to the adjusting handle 15, and the adjusting handle 15 is provided with a limiting part 31 for limiting the range of movement of the auxiliary actuator 17 relative to the adjusting handle 15. Furthermore, in the silent gear shifter provided by this utility model, the guide posts 18 are a pair, respectively disposed on the top and bottom surfaces of the adjusting block 16, and the guide grooves 19 are a pair, respectively assembled and connected to the guide posts 18 on the top and bottom surfaces of the adjusting block 16. Furthermore, in the silent gear shifter provided by this utility model, the auxiliary actuator 17 includes an upper cover 28 and a lower cover 29, the adjusting block 16 is covered between the upper cover 28 and the lower cover 29, and a notch 30 for the pawl 14 to extend or retract is provided on one side of the auxiliary actuator 17. In this embodiment, the limiting part 31 is a limiting groove 32, and the connecting parts of the two corners of the upper cover 28 and the lower cover 29 slide in the limiting groove 32. These structures can protect the normal movement of the adjusting block 16.

[0062] Specifically, in the silent gear shifter provided by this utility model, the auxiliary actuator 17 has a movable cavity 33, the adjusting block 16 is located in the movable cavity 33, one end of the adjusting handle 15 has a sliding head 34, the sliding head 34 moves in the movable cavity 33, and the adjusting block 16 is located in the movable cavity 33 and hinged to the sliding head 34. More specifically, in the silent gear shifter provided by this utility model, the adjusting sleeve 12 includes an upper shell 35, a lower shell 36, and a pair of clamping strips 37. The clamping strips 37 are clamped between the upper shell 35 and the lower shell 36, and the two clamping strips 37 are spaced apart. The adjusting handle 15 and the auxiliary actuator 17 are installed between the clamping strips 37 and slide between the two clamping strips 37. The adjusting handle 15 is straight, the auxiliary actuator 17 is block-shaped, and the ratchet portion 13 is provided. Inside a clamping strip 37, a stop 26 is provided at one end of the clamping strip 37. The stop 26 is also clamped between the upper shell 35 and the lower shell 36. The stop 26 has a pull-out opening for the adjusting handle 15 to be pulled out or pushed in. At the other end of the clamping strip 37, the upper shell 35 and the lower shell 36 have plugs 27. The plugs 27 and the stop 26 limit the movement of the auxiliary member 17, which are the blocking parts 25 in the two directions mentioned above. The adjusting block 16 has a circular protruding end 38. The sliding head 34 has a rotating recess 39. The circular protruding end 38 is installed in the rotating recess 39. A rotating arm is formed between the protruding end 38 and the adjusting block 16. The rotating recess 39 has an opening 40. The rotating arm moves in the opening 40, and the opening 40 restricts the rotation range of the rotating arm. Thus, this utility model has three states. In the first state, the guide post 18 is located in the first position 20, the pawl 14 of the adjusting block 16 is engaged in the ratchet part 13, and the advancement of the adjusting handle 15 is restricted. In the second state, the guide post 18 is located in the second position 21, the pawl 14 is completely disengaged from the pawl 14 part, and the pawl 14 will not collide with the ratchet part 13 during the pulling of the adjusting handle 15. In the third state, the auxiliary member 17 cooperates with the stop block 26 to make the guide post 18 engage in the rear guide groove 23, and the pawl 14 is completely away from the pawl 14 part. At this time, it is feasible to advance or pull the adjusting handle 15. The adjusting block 16 is restricted to a certain rotation angle. At this time, the auxiliary member 17 can be advanced to the plug 27 at the other end of the adjusting sleeve 12. Under the action of external force, the auxiliary member 17 cooperates with the plug 27 to make the guide post 18 engage back in the front guide groove 22, completing the return. Throughout the entire process, the movement of the pawl 14 and the ratchet 13, as well as the movement of the adjusting block 16 and the auxiliary member 17, occurs without collision, thus enabling silent adjustment of different gears along a length direction. A connecting ring 41 is provided at one end of the adjusting sleeve 12 and the other end of the adjusting handle 15 for easy connection.

[0063] In summary, this invention has three states. In the first state, the guide post is in the first position, the pawl of the adjusting block is engaged in the ratchet, and the advancement of the adjusting handle is limited. In the second state, the guide post is in the second position, the pawl is completely disengaged from the ratchet, and the pawl will not collide with the ratchet during the pulling of the adjusting handle. In the third state, the auxiliary component cooperates with the stop block to make the guide post engage in the rear guide groove, and the pawl is completely away from the ratchet. At this time, both pushing and pulling the adjusting handle are feasible, and the adjusting block is restricted to a certain rotation angle. At this time, the auxiliary component can be pushed to the plug at the other end of the adjusting sleeve. Under the action of external force, the auxiliary component cooperates with the plug, making the guide post engage in the front guide groove, completing the return to the original gear. Throughout the entire process, there is no collision between the movement of the pawl and the ratchet, or between the adjusting block and the auxiliary component, thus achieving silent gear adjustment.

[0064] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A silent gear selector, characterized in that, The device includes an adjustment component (11) and an adjustment sleeve (12). The adjustment component (11) is retractably installed in the adjustment sleeve (12). The adjustment sleeve (12) has a ratchet portion (13). The adjustment component (11) has a rotatable pawl (14). The ratchet portion (13) is located on one side of the pawl (14). The pawl (14) of the adjustment component (11) engages with the ratchet portion (13) in the adjustment sleeve (12). The adjustment component (11) can be pulled out or pushed in from the adjustment sleeve (12). Pulling the adjustment component (11) causes the pawl (14) to disengage from the ratchet (13). Pushing the adjustment component (11) causes the pawl (14) to engage with the ratchet (13), thus restricting the movement of the adjustment component (11) in the pushing direction. Alternatively, pushing the adjustment component (11) causes the pawl (14) to disengage from the ratchet (13). Pulling the adjustment component (11) causes the pawl (14) to engage with the ratchet (13), thus restricting the movement of the adjustment component (11) in the pulling direction.

2. The silent gear adjuster according to claim 1, characterized in that, The adjustment assembly (11) includes an adjustment handle (15) and an adjustment block (16). The adjustment handle (15) is retractably installed in the adjustment sleeve (12). The adjustment block (16) is located in the adjustment sleeve (12) and is rotatably connected to one end of the adjustment handle (15). The pawl (14) is located on the adjustment block (16).

3. The silent gear adjuster according to claim 2, characterized in that, The adjustment assembly (11) further includes an auxiliary member (17) for constraining the rotation range of the adjustment block (16), the auxiliary member (17) being connected to the adjustment block (16).

4. The silent gear adjuster according to claim 3, characterized in that, The adjusting block (16) is provided with a guide post (18), and the auxiliary member (17) is provided with a guide groove (19). The guide post (18) moves in the guide groove (19). When the guide post (18) is in the first position (20) of the guide groove (19), the pawl (14) of the adjusting block (16) is engaged in the ratchet part (13). The adjusting handle (15) is moved, causing the adjusting block (16) to rotate. The pawl (14) of the adjusting block (16) disengages from the ratchet part (13). When the guide post (18) moves to the second position (21) of the guide groove (19), the continued movement of the guide post (18) is restricted. The continued movement of the adjusting handle (15) drives the adjusting block (16) to move in the adjusting sleeve (12). The adjusting block (16) drives the auxiliary member (17) to move through the guide post (18).

5. The silent gear adjuster according to claim 4, characterized in that, The guide groove (19) includes a front guide groove (22) and a rear guide groove (23). A bayonet (24) is provided between the front guide groove (22) and the rear guide groove (23). The front guide groove (22) and the rear guide groove (23) are connected by the bayonet (24). The adjusting sleeve (12) has a stop (25). The stop (25) is located on the moving path of the auxiliary member (17). The adjusting block (16) drives the auxiliary member (17) to move to the location of the stop (25). The auxiliary member (17) and the stop (25) abut against each other. The continued movement of the auxiliary member (17) is restricted. Under the action of external force, the adjusting block (16) continues to move. The guide post (18) passes through the bayonet (24).

6. The silent gear adjuster according to claim 5, characterized in that, The auxiliary member (17) is movably connected to the adjusting handle (15), and the adjusting handle (15) is provided with a limiting part (31) for limiting the range of movement of the auxiliary member (17) relative to the adjusting handle (15).

7. The silent gear adjuster according to claim 4, characterized in that, The guide posts (18) are a pair, respectively disposed on the top and bottom surfaces of the adjusting block (16), and the guide grooves (19) are a pair, respectively assembled and connected to the guide posts (18) on the top and bottom surfaces of the adjusting block (16).

8. The silent gear adjuster according to claim 3, characterized in that, The auxiliary component (17) includes an upper cover (28) and a lower cover (29), and the adjusting block (16) is disposed between the upper cover (28) and the lower cover (29). A notch (30) for the pawl (14) to extend or retract is provided on one side of the auxiliary component (17).

9. The silent gear adjuster according to any one of claims 3-8, characterized in that, The auxiliary actuator (17) has a movable cavity (33), the adjusting block (16) is located in the movable cavity (33), one end of the adjusting handle (15) has a sliding head (34), the sliding head (34) moves in the movable cavity (33), and the adjusting block (16) is located in the movable cavity (33) and is hinged to the sliding head (34).

10. The silent gear adjuster according to claim 9, characterized in that, The adjusting sleeve (12) includes an upper shell (35), a lower shell (36), and a pair of clamping bars (37). The clamping bars (37) are clamped between the upper shell (35) and the lower shell (36), and the two clamping bars (37) are spaced apart. The adjusting handle (15) and the auxiliary member (17) are installed between the clamping bars (37) and slide between the two clamping bars (37). The adjusting handle (15) is straight, and the auxiliary member (17) is strip-shaped. The ratchet (13) is located on the inner side of one clamping bar (37). One end of the clamping bar (37) is provided with a stop (26), which is also clamped between the upper shell (35) and the lower shell (36). The stop (26) has a function for allowing the adjustment to proceed. The adjustment handle (15) has a pull-out or push-in opening, and at the other end of the clamp (37), the upper shell (35) and the lower shell (36) have a plug (27), the plug (27) and the stop block (26) limit the auxiliary member (17), the adjustment block (16) has a circular protruding end (38), the sliding head (34) has a rotating socket (39), the circular protruding end (38) is installed in the rotating socket (39), the protruding end (38) and the adjustment block (16) are a rotating arm, the rotating socket (39) has an opening (40), the rotating arm moves in the opening (40), and the opening (40) restricts the rotation range of the rotating arm.

Images