Shock absorber damping level adjusting device

Abstract

The utility model discloses a shock absorber damping gear adjustment device, including the shock absorber, the shock absorber outer wall is equipped with the adjusting ring, the self locking unit, the self locking unit is placed in the adjusting ring outside, the self locking unit includes the protection box of being equipped with in the shock absorber outside, the protection box inside rotationally connected has the worm, the worm outer wall has the worm wheel, the worm end is connected with the sealing ring, the sealing ring is connected with the handlebar away from the worm one side, when adjusting shock absorber damping gear, rotates the handlebar, and the handlebar drives sealing ring and worm synchronous rotation, and the worm drive outer wall meshed worm wheel rotates, and further drive adjusting ring rotation, complete damping gear adjustment, after adjusting, to avoid vehicle jounce vibration, harsh working condition scratch impact or maintenance false touch and lead handlebar false rotation, cause damping gear unexpected deviation, destroy the suspension smoothness and control stability, need to adjust the ring and implement the anti -rotation limit.

Description

Technical Field

[0001] This utility model relates to the technical field of shock absorber damping gear, specifically to a shock absorber damping gear adjustment device. Background Technology

[0002] Shock absorber damping refers to the resistance characteristic of the damping medium inside the shock absorber, which, during forced flow, converts the mechanical energy of the suspension system's vibration into heat energy and dissipates it through friction, shearing action with the damping channel wall, and the viscous resistance of the medium itself. The shock absorber damping level adjustment device is a mechanical or mechatronic component integrated into the shock absorber system to change the magnitude of the shock absorber's damping force in stages. Its core function is to adapt the shock absorber to different road conditions, loads, or driving modes by adjusting the flow resistance of the damping medium inside the shock absorber.

[0003] Existing shock absorber damping gear adjustment devices mostly adopt an exposed knob structure without a gear locking limit mechanism. Bumps and vibrations during vehicle operation, external scrapes and impacts under harsh working conditions, or accidental touches during maintenance can easily cause the knob to turn accidentally, resulting in unexpected deviation of the damping gear and compromising the suspension ride comfort and handling stability.

[0004] Therefore, a shock absorber damping gear adjustment device is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a damping gear adjustment device for shock absorbers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shock absorber damping level adjustment device, comprising a shock absorber, wherein an adjustment ring is sleeved on the outer wall of the shock absorber. The self-locking unit is located outside the adjusting ring. The self-locking unit includes a protective box sleeved outside the shock absorber. A worm gear is rotatably connected inside the protective box. A worm wheel meshes with the outer wall of the worm gear. A sealing ring is connected to the end of the worm gear. A throttle handle is connected to the side of the sealing ring away from the worm gear. An auxiliary unit is located on the side of the throttle handle away from the sealing ring.

[0007] Preferably, a fixing block is connected to the outer wall of the protective box, a sliding rod is slidably arranged inside the fixing block, a clamp is connected to the end of the sliding rod, and a spring is sleeved on the outer wall of the sliding rod; The side wall of the clamping plate is connected to a connecting block, the outer wall of the connecting block is hinged to a connecting plate, the end of the connecting plate away from the connecting block is hinged to a connecting strip, and the end of the connecting strip away from the connecting plate is connected to a pressure plate.

[0008] Preferably, the clamping plates are arranged in an arc shape, and there are two clamping plates symmetrically distributed around the center of the sealing ring. Under the constraint of the two clamping plates, the outer wall of the sealing ring can be clamped to prevent it from rotating.

[0009] Preferably, the worm gear rotates inside the protective box, and the end of the worm is rotatably connected to the inner wall of the protective box. When the worm rotates, the worm gear it drives rotates accordingly, so that the worm gear drives the adjusting ring to rotate, thereby precisely adjusting the damping level of the shock absorber.

[0010] Preferably, the pressure plate is in contact with the side of the handle away from the sealing ring on the side of the protective box. Under the elastic action of the spring, the pressure plate can be pulled to press down the handle.

[0011] Preferably, the auxiliary unit includes a limiting groove on the side of the throttle away from the sealing ring, a limiting disc is rotatably connected inside the limiting groove, a sliding groove is provided on the side wall of the limiting disc, a first magnetic block is connected to the inner wall of the sliding groove, a second magnetic block is slidably arranged inside the sliding groove, and a hook is connected to the outer wall of the second magnetic block.

[0012] Preferably, the end of the hook is inclined, and there are two hooks symmetrically distributed around the center of the limiting disc. With the two hooks locking and restricting the pressure plate, the pressure plate can be prevented from moving away from the throttle.

[0013] Preferably, the second magnetic block and the first magnetic block are magnetically repulsive. Under the restriction of magnetic repulsion, the hook that is not squeezed can be reset and pushed to engage the pressure plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: In this invention, when adjusting the damping setting of the shock absorber, rotating the throttle causes the sealing ring and worm gear to rotate synchronously. The worm gear drives the worm wheel meshing with the outer wall to rotate, which in turn drives the adjusting ring to rotate, thus completing the damping setting adjustment. After adjustment, to prevent the throttle from being accidentally turned due to vehicle bumps and vibrations, harsh working conditions, or accidental contact during maintenance, which could cause an unexpected shift in the damping setting and compromise suspension ride comfort and handling stability, the adjusting ring needs to be protected against rotation. Utilizing the self-locking characteristic of the worm gear and worm wheel meshing, the rotation of the worm gear can be initially restricted. After the pressure plate is released, the spring elastically returns to its original position, pushing the clamping plate at the end of the slide rod to move in opposite directions, clamping the outer wall of the sealing ring. At the same time, the clamping plate pulls the connecting plate through the connecting block, and the connecting plate drives the connecting bar to move the pressure plate towards the throttle and press it against the throttle. The dual constraint of clamping the sealing ring with the clamping plate and pressing the throttle with the pressure plate further prevents the throttle from driving the worm gear to rotate through the sealing ring. When adjusting the damping gear again, pull the pressure plate. The pressure plate drives the two clamping plates to move in opposite directions through the connecting bar and connecting block, releasing the clamping of the sealing ring. At the same time, the clamping plate drives the slide rod to slide in the fixed block, compressing the spring on the outer wall of the slide rod. At this time, the throttle can be turned to adjust the gear. To prevent spring failure due to vibration, which could cause the clamping plate and pressure plate to lose their restriction on the worm's rotation, this invention adds an auxiliary limiting structure to the pressure plate. When the pressure plate is released, it presses against the inclined surface of the hook end, causing the hook to drive the second magnetic block to slide along the groove. When the pressure plate is between the two hooks and the pressure is released, the magnetic repulsion between the first and second magnetic blocks pushes the two hooks to move in opposite directions and engage with the outer wall of the pressure plate, thus limiting the pressure plate and preventing it from accidentally pulling the clamping plate. To adapt to the position of the pressure plate after the throttle is turned and ensure effective hook engagement, the limiting disc can be rotated along the limiting groove to adjust the relative position of the hooks and the pressure plate to complete the engagement. This structure effectively prevents the worm from mis-rotating due to spring elasticity loosening caused by vibration. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the self-locking unit and auxiliary unit of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the self-locking unit of this utility model.

[0018] Figure 4 This is a cross-sectional exploded view of the self-locking unit of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the auxiliary unit of this utility model.

[0020] Figure 6 This is a cross-sectional exploded view of the structural auxiliary unit of this utility model.

[0021] In the diagram: 1. Shock absorber; 2. Adjusting ring; 3. Self-locking unit; 4. Auxiliary unit; 31. Protective box; 32. Worm gear; 33. Worm wheel; 34. Sealing ring; 35. Throttle; 36. Fixing block; 37. Slide rod; 38. Clamping plate; 39. Spring; 310. Connecting block; 311. Connecting plate; 312. Connecting bar; 313. Pressure plate; 41. Limiting groove; 42. Limiting disc; 43. Slide groove; 44. First magnetic block; 45. Second magnetic block; 46. Hook. Detailed Implementation

[0022] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0023] Example 1: Reference Figures 1-4 This is the first embodiment of the present invention, which provides a shock absorber damping level adjustment device, including a shock absorber 1, with an adjustment ring 2 sleeved on the outer wall of the shock absorber 1. Self-locking unit 3, self-locking unit 3 is placed outside the adjusting ring 2. Self-locking unit 3 includes a protective box 31 sleeved outside the shock absorber 1. A worm 32 is rotatably connected inside the protective box 31. A worm wheel 33 meshes with the outer wall of the worm 32. A sealing ring 34 is connected to the end of the worm 32. A throttle 35 is connected to the side of the sealing ring 34 away from the worm 32. The outer wall of the protective box 31 is connected to a fixing block 36, and a sliding rod 37 is slidably arranged inside the fixing block 36. The end of the sliding rod 37 is connected to a clamping plate 38, and a spring 39 is sleeved on the outer wall of the sliding rod 37. The side wall of the clamping plate 38 is connected to a connecting block 310, the outer wall of the connecting block 310 is hinged to a connecting plate 311, the end of the connecting plate 311 away from the connecting block 310 is hinged to a connecting strip 312, and the end of the connecting strip 312 away from the connecting plate 311 is connected to a pressure plate 313. Auxiliary unit 4 is located on the side of the throttle 35 away from the sealing ring 34.

[0024] The clamping plate 38 is arc-shaped, and there are two clamping plates 38, which are symmetrically distributed around the center of the sealing ring 34. Under the restriction of the two clamping plates 38, the outer wall of the sealing ring 34 can be clamped to prevent it from rotating.

[0025] The worm gear 33 rotates inside the protective box 31, and the end of the worm 32 is rotatably connected to the inner wall of the protective box 31. When the worm 32 rotates, the worm gear 33 it can drive rotates accordingly, so that the worm gear 33 drives the adjusting ring 2 to rotate, and precisely adjusts the damping level of the shock absorber 1.

[0026] Among them, the side of the pressure plate 313 near the protective box 31 is in contact with the side of the handle 35 away from the sealing ring 34. Under the elastic action of the spring 39, the pressure plate 313 can be pulled to press the handle 35.

[0027] When adjusting the damping setting of shock absorber 1, turning the throttle 35 causes the sealing ring 34 and worm gear 32 to rotate, which in turn rotates the worm wheel 33 meshing with the outer wall. This causes the worm wheel 33 to rotate the adjusting ring 2, thus adjusting the damping setting of shock absorber 1. After adjustment, to prevent accidental rotation of the knob due to bumps and vibrations during vehicle operation, external scrapes and impacts under harsh conditions, or accidental contact during maintenance, which could lead to unexpected deviation of the damping setting and compromise suspension ride comfort and handling stability, it is necessary to limit the rotation of the adjusting ring 2. Since the meshing of worm gear 32 and worm wheel 33 has a self-locking effect, this limitation can initially limit the rotation of worm gear 32. After the damping gear of shock absorber 1 is adjusted, the pressure plate 313 is released. Under the elastic action of spring 39, the clamping plate 38 fixedly installed at the end of slide rod 37 can be pushed. The two clamping plates 38 move in opposite directions, clamping the outer wall of sealing ring 34. The clamping plates 38 pull the connecting plate 311 through connecting block 310, causing the connecting plate 311 to pull the pressure plate 313 towards the handle 35 through connecting bar 312. The pressure plate 313 presses against the handle 35. Under the clamping of sealing ring 34 by clamping plate 38 and the pressing of handle 35 by pressure plate 313, it can be further prevented that handle 35 drives worm gear 32 to rotate through sealing ring 34. When adjusting the damping setting of shock absorber 1, pull the pressure plate 313. The pressure plate 313 pulls the connecting block 310 through the connecting bar 312, causing the connecting block 310 to pull the clamping plate 38. This causes the two clamping plates 38 to move in opposite directions, no longer clamping the outer wall of the sealing ring 34. The clamping plate 38 drives the slide rod 37 to slide inside the fixed block 36, compressing the spring 39 sleeved on the outer wall of the slide rod 37. At this time, the throttle 35 can be turned to adjust the damping setting of shock absorber 1.

[0028] Example 2: Reference Figure 5 and Figure 6 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment is further optimized based on the above embodiment, as detailed below: The auxiliary unit 4 includes a limiting groove 41 on the side of the throttle 35 away from the sealing ring 34. A limiting disk 42 is rotatably connected inside the limiting groove 41. A sliding groove 43 is provided on the side wall of the limiting disk 42. A first magnetic block 44 is connected to the inner wall of the sliding groove 43. A second magnetic block 45 is slidably arranged inside the sliding groove 43. A hook 46 is connected to the outer wall of the second magnetic block 45.

[0029] Among them, the end of the hook 46 is set with an angle, and there are two hooks 46, which are symmetrically distributed around the center of the limiting plate 42. Under the locking and limiting of the pressure plate 313 by the two hooks 46, the pressure plate 313 can be prevented from moving away from the throttle 35.

[0030] Among them, the second magnetic block 45 and the first magnetic block 44 are magnetically repulsive. Under the restriction of magnetic repulsion, the hook 46 that is not squeezed can be reset and pushed to engage the pressure plate 313.

[0031] After the damping gear of the shock absorber 1 is adjusted, the pressure plate 313 presses against the throttle 35. To prevent the spring 39 from vibrating and causing the clamping plate 38 and the pressure plate 313 to no longer restrict the rotation of the worm gear 32, the pressure plate 313 needs to be further restricted. When the pressure plate 313 is released, it causes the pressure plate 313 to press against the inclined surface of the end of the hook 46, causing the hook 46 to drive the second magnetic block 45 to slide inside the slide groove 43. When the pressure plate 313 is placed between the two hooks 46 and no longer presses against the hooks 46, under the magnetic repulsion restriction of the first magnetic block 44 and the second magnetic block 45, the two hooks 46 move towards each other and engage with the outer wall of the pressure plate 313, thus restricting the pressure plate 313 and preventing the pressure plate 313 from accidentally pulling the clamping plate 38. As the throttle 35 rotates, to ensure that the latch 46 can engage with the pressure plate 313, the limiting disc 42 is rotated, allowing it to rotate within the limiting groove 41. This adjusts and engages the latch 46 with the pressure plate 313. This structure prevents vibration from causing the spring 39 to loosen due to elasticity, thus avoiding accidental rotation of the worm gear 32.

[0032] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A damping gear adjustment device for a shock absorber, characterized in that, Includes a shock absorber (1), and the outer wall of the shock absorber (1) is fitted with an adjusting ring (2). The self-locking unit (3) is located outside the adjusting ring (2). The self-locking unit (3) includes a protective box (31) sleeved outside the shock absorber (1). A worm gear (32) is rotatably connected inside the protective box (31). A worm wheel (33) meshes with the outer wall of the worm gear (32). A sealing ring (34) is connected to the end of the worm gear (32). A throttle (35) is connected to the side of the sealing ring (34) away from the worm gear (32). Auxiliary unit (4) is located on the side of the throttle (35) away from the sealing ring (34).

2. The damping gear adjustment device for a shock absorber according to claim 1, characterized in that: The outer wall of the protective box (31) is connected to a fixing block (36), and a sliding rod (37) is slidably arranged inside the fixing block (36). A clamping plate (38) is connected to the end of the sliding rod (37), and a spring (39) is sleeved on the outer wall of the sliding rod (37). The side wall of the clamp (38) is connected to a connecting block (310), the outer wall of the connecting block (310) is hinged to a connecting plate (311), the end of the connecting plate (311) away from the connecting block (310) is hinged to a connecting strip (312), and the end of the connecting strip (312) away from the connecting plate (311) is connected to a pressure plate (313).

3. The damper damping gear adjustment device according to claim 2, characterized in that: The clamp (38) is arranged in an arc shape, and there are two clamps (38) symmetrically distributed around the center of the sealing ring (34).

4. The damper damping gear adjustment device according to claim 1, characterized in that: The worm gear (33) rotates inside the protective box (31), and the end of the worm (32) is rotatably connected to the inner wall of the protective box (31).

5. The damper damping gear adjustment device according to claim 2, characterized in that: The pressure plate (313) is in contact with the side of the protective box (31) near the handle (35) away from the sealing ring (34).

6. The damping gear adjustment device for a shock absorber according to claim 2, characterized in that: The auxiliary unit (4) includes a limiting groove (41) on the side of the throttle (35) away from the sealing ring (34). A limiting disk (42) is rotatably connected inside the limiting groove (41). A sliding groove (43) is provided on the side wall of the limiting disk (42). A first magnetic block (44) is connected to the inner wall of the sliding groove (43). A second magnetic block (45) is slidably arranged inside the sliding groove (43). A hook (46) is connected to the outer wall of the second magnetic block (45).

7. The shock absorber damping gear adjustment device according to claim 6, characterized in that: The end of the hook (46) is set with an inclined surface, and there are two hooks (46) symmetrically distributed around the center of the limiting plate (42).

8. The damping gear adjustment device for a shock absorber according to claim 6, characterized in that: The second magnetic block (45) and the first magnetic block (44) are magnetically repulsive.

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