Shock absorber convenient to replace and maintain

Abstract

The utility model relates to the technical field of shock absorbers, and discloses a shock absorber convenient to replace and maintain, which comprises a bevel gear rotationally connected to the inner bottom surface of a fixed frame; the bevel gear is fixedly connected to one end, close to the inner ring, of the rotating shaft and meshed with the bevel gear; the lead screw is fixedly connected to the side wall, close to the inner ring, of the bevel gear; and the fixing mechanism is arranged on the inner ring and the screw rod. When dismounting is needed, a rotating ring is rotated, the rotating ring drives a bevel gear to rotate through a connecting rod, multiple sets of bevel gears drive a lead screw to rotate at the same time, a threaded sleeve drives a fixing block and a fixing rod to be separated from a limiting groove together, the connecting sleeve is lifted upwards, dismounting of the connecting sleeve and the spring tray is achieved, and then the damping cylinder barrel is sleeved with a new connecting sleeve and a new spring tray. And the bottom end of the connecting sleeve is inserted into the fixing frame, and the rotating ring is rotated reversely, so that the fixing block and the fixing rod are inserted into the limiting groove, the connecting sleeve is fixed, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a shock absorber which is easy to replace and maintain. Background Art

[0002] Shock absorbers, also known as shock absorbers or dampers, are components of a vehicle's suspension system. Their primary function is to reduce vibration and bumps caused by road irregularities, improving ride comfort and vehicle stability. Shock absorbers absorb and dissipate impact energy from the wheels and suspension system, converting it into heat, and control the vehicle's spring rebound speed, ensuring good ground contact and stability.

[0003] According to the Chinese utility model disclosure number CN220470526U, a maintenance mechanism and a shock absorber that is easy to maintain are disclosed. It includes a damping cylinder, a piston rod, a spring tray and a maintenance mechanism. The piston rod is inserted into the top of the damping cylinder. The outer sleeve of the damping cylinder is provided with a spring tray. The maintenance mechanism is provided below the spring tray. The maintenance mechanism includes a fixing sleeve and a connecting assembly provided therein. The connecting assembly includes a telescopic guide rod, an arc-shaped fixing plate, a tension spring and a threaded push rod. The utility model is provided with a fixing sleeve located below the spring tray in the damping cylinder. The connecting assembly is provided in the fixing sleeve. Through the mutual cooperation of the telescopic guide rod, the arc-shaped fixing plate, the tension spring and the threaded push rod in the connecting assembly, the spring tray can be detachably installed on the outer side of the damping cylinder. Once the spring tray is damaged, it can be removed and replaced without replacing the entire shock absorber, thereby reducing the cost of maintenance and replacement.

[0004] The above disclosure realizes the individual replacement of the spring tray in the shock absorber, but when releasing the limit of the spring tray, it is necessary to turn multiple handwheel handles on the outside in turn, which is a cumbersome process, and it is also necessary to tighten the handwheel handles in turn to fix the new spring tray. This can easily lead to different numbers of turns of the multiple handwheel handles, resulting in uneven fixation of the circumference of the spring tray, affecting the stability of the subsequent use of the shock absorber. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides a shock absorber that is easy to replace and maintain. It has the advantage of being easy to replace, and solves the problem that it is costly to replace the entire shock absorber after the spring tray in the existing shock absorber is damaged, and the related technology has the problem of cumbersome operation when replacing the spring tray.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a shock absorber that is easy to replace and maintain, comprising a main body assembly, wherein the main body assembly comprises:

[0009] A damping cylinder, the outer sleeve of which is provided with a connecting sleeve;

[0010] A spring tray is arranged on the top of the connecting sleeve;

[0011] The damping cylinder and the connecting sleeve are provided with a replacement component, and the replacement component includes:

[0012] A fixing frame, fixedly connected to the outer side wall of the damping cylinder;

[0013] An inner ring, arranged inside the fixed frame;

[0014] A bevel gear rotatably connected to the inner bottom surface of the fixed frame;

[0015] A connecting rod is symmetrically fixedly connected to the bottom of the replacement assembly, and the bottom end of the connecting rod passes through and extends to the bottom of the fixing frame;

[0016] A swivel, fixedly connected to the bottom of the connecting rod;

[0017] A rotating shaft, symmetrically and rotationally connected to the inner side wall of the fixed frame;

[0018] a bevel gear fixedly connected to one end of the rotating shaft close to the inner ring and meshing with the bevel gear;

[0019] A screw rod is fixedly connected to a side wall of the bevel gear close to the inner ring;

[0020] The fixing mechanism is arranged on the inner ring and the screw rod.

[0021] Preferably, the fixing mechanism includes:

[0022] A threaded sleeve, threadedly connected to the outside of the screw rod, an end of the threaded sleeve away from the screw rod passes through the inner ring, and the threaded sleeve is a rectangular parallelepiped;

[0023] A fixed block, fixedly connected to an end of the threaded sleeve away from the screw rod;

[0024] A fixing rod is symmetrically arranged on a side wall of the fixing block away from the threaded sleeve;

[0025] The limiting grooves are symmetrically arranged on the outer side wall of the connected sleeve.

[0026] Preferably, an optical axis is fixedly connected to a side of the fixing block close to the inner ring, and the optical axis passes through and is slidably connected to the inner ring.

[0027] Preferably, the optical axes are symmetrically arranged in multiple groups, and at least two groups are arranged.

[0028] Preferably, guide blocks are symmetrically provided on the outside of the connecting sleeve, and a guide groove is provided on the top of the fixing frame, and the guide groove corresponds to the position of the guide block.

[0029] Preferably, a limit plate is symmetrically provided on one side of the threaded sleeve close to the screw rod.

[0030] (3) Beneficial effects

[0031] Compared with the prior art, the present invention provides a shock absorber that is easy to replace and maintain, and has the following beneficial effects:

[0032] The shock absorber has the advantage of being easy to replace. When the connecting sleeve and spring tray need to be removed, the staff rotates the swivel, which drives the bevel gear to rotate through the connecting rod. The multiple sets of bevel gears meshing on the top of the bevel gear drive the screw to rotate, so that the threaded sleeve drives the fixed block to move in the direction of the screw. The fixed block and the fixed rod are disengaged from the limit groove. The connecting sleeve is lifted up to achieve the removal of the connecting sleeve and the spring tray. Then, the new connecting sleeve and spring tray are placed on the outside of the damping cylinder, the bottom end of the connecting sleeve is inserted into the fixed frame, and the swivel is rotated in the opposite direction so that the fixed block and the fixed rod are inserted into the limit groove to fix the connecting sleeve. Rotating the swivel can drive multiple sets of fixed blocks and fixed rods to be disengaged or fixed on the connecting sleeve at the same time, thereby increasing the convenience of operation. This solves the problem that the cost of replacing the entire shock absorber after the spring tray in the existing shock absorber is high and the related technology is relatively cumbersome when replacing the spring tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the structure in which the connecting sleeve and the spring tray are removed in the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0036] Figure 4 This is a schematic diagram of the internal structure of the fixed frame in the present utility model;

[0037] Figure 5 This is an enlarged structural diagram of point A in the present invention.

[0038] In the picture:

[0039] 1. Main assembly; 11. Damping cylinder; 12. Connecting sleeve; 13. Spring tray;

[0040] 2. Replacement assembly; 21. Fixing frame; 211. Inner ring; 22. Bevel gear; 23. Swivel; 231. Connecting rod; 24. Rotating shaft; 25. Bevel gear; 26. Screw; 27. Fixing mechanism; 271. Threaded sleeve; 272. Fixing block; 273. Fixing rod; 274. Limiting groove; 275. Limiting plate;

[0041] 3. Optical axis; 4. Guide block; 41. Guide groove. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example 1

[0044] See Figure 1-5 A shock absorber that is easy to replace and maintain includes a main body component 1, the main body component 1 includes: a damping cylinder 11, the outer sleeve of which is provided with a connecting sleeve 12; a spring tray 13, which is arranged on the top of the connecting sleeve 12; a replacement component 2 is provided on the damping cylinder 11 and the connecting sleeve 12, and the replacement component 2 includes: a fixing frame 21, which is fixedly connected to the outer wall of the damping cylinder 11; an inner ring 211, which is arranged inside the fixing frame 21; a bevel gear 22, which is rotatably connected to the inner bottom surface of the fixing frame 21; a connecting rod 231, which is symmetrically fixed Connected to the bottom of the replacement component 2, the bottom end of the connecting rod 231 passes through and extends to the bottom of the fixed frame 21; the rotating ring 23 is fixedly connected to the bottom of the connecting rod 231; the rotating shaft 24 is symmetrically and rotationally connected to the inner wall of the fixed frame 21; the bevel gear 25 is fixedly connected to one end of the rotating shaft 24 close to the inner ring 211 and meshes with the bevel gear 22; the screw rod 26 is fixedly connected to a side wall of the bevel gear 25 close to the inner ring 211; the fixing mechanism 27 is arranged on the inner ring 211 and the screw rod 26. The fixing mechanism 27 includes: a threaded sleeve 271, threadedly connected to the outside of the screw rod 26. The end of the threaded sleeve 271 away from the screw rod 26 passes through the inner ring 211. The threaded sleeve 271 is a rectangular parallelepiped; a fixing block 272, fixedly connected to the end of the threaded sleeve 271 away from the screw rod 26; a fixing rod 273, symmetrically arranged on a side wall of the fixing block 272 away from the threaded sleeve 271; and a limiting groove 274, symmetrically provided on the outer side wall of the connected sleeve 12. The optical axis 3 is fixedly connected to the side of the fixing block 272 near the inner ring 211. The optical axis 3 passes through and is slidably connected to the inner ring 211.

[0045] When it is necessary to disassemble the connecting sleeve 12 and the spring tray 13, the staff rotates the swivel 23, and the swivel 23 drives the bevel gear 22 to rotate through the connecting rod 231. The multiple sets of bevel gears 25 meshing on the top of the bevel gear 22 rotate at the same time, and the bevel gear 25 drives the screw rod 26 to rotate. The threaded sleeve 271 connected to the external thread of the screw rod 26 drives the fixed block 272 to move in the direction of the screw rod 26. The fixed block 272 and the fixed rod 273 are disengaged from the limit groove 274. At this time, the staff lifts the connecting sleeve 12 to realize the disassembly of the connecting sleeve 12 and the spring tray 13, and then puts a new one in. The connecting sleeve 12 and the spring tray 13 are sleeved on the outside of the damping cylinder 11. The bottom end of the connecting sleeve 12 is inserted into the fixed frame 21, and the swivel 23 is rotated in the opposite direction. The swivel 23 drives the bevel gear 22 to rotate in the opposite direction, causing the top screw 26 to rotate in the opposite direction. At this time, the threaded sleeve 271 drives the fixing block 272 and the fixing rod 273 close to the connecting sleeve 12 and inserts them into the limiting groove 274 to fix the connecting sleeve 12. Rotating the swivel 23 can drive multiple groups of fixing blocks 272 and fixing rods 273 to be detached from or fixed to the connecting sleeve 12 at the same time, increasing the convenience of operation. When the fixing block 272 moves, the optical axis 3 of the outer wall slides on the inner ring 211 to increase the stability of the fixing block 272 when moving.

[0046] Example 2

[0047] On the basis of the first embodiment, an auxiliary function is added.

[0048] See Figure 1-5 The optical axis 3 is symmetrically arranged in multiple groups, with at least two groups provided. Guide blocks 4 are symmetrically provided on the exterior of the connecting sleeve 12. A guide groove 41 is defined at the top of the fixing frame 21, corresponding to the position of the guide blocks 4. A limit plate 275 is symmetrically provided on one side of the threaded sleeve 271 near the screw rod 26.

[0049] Multiple groups are symmetrically arranged along the optical axis 3 to guide the fixed block 272 in multiple directions, thereby increasing the stability of the movement of the fixed block 272 and facilitating the fixed block 272 to drive the fixing rod 273 to be inserted into or out of the limiting groove 274 in a timely manner. Before the new connecting sleeve 12 is inserted into the fixed frame 21, the guide block 4 is aligned with the guide groove 41. The guidance of the guide block 4 and the guide groove 41 increases the stability of the connecting sleeve 12 after it is fixed and facilitates the accurate insertion of the fixed block 272 and the fixing rod 273 into the limiting groove 274. When the threaded sleeve 271 moves, the limiting plate 275 limits the movement distance of the threaded sleeve 271 to prevent the threaded sleeve 271 from moving out of the inner ring 211 and affecting the normal fixing effect of the fixed block 272 and the fixing rod 273 on the connecting sleeve 12.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shock absorber that is easy to replace and maintain, comprising a main body assembly (1), wherein the main body assembly (1) comprises: A damping cylinder (11) having an outer sleeve provided with a connecting sleeve (12); A spring tray (13) is arranged on the top of the connecting sleeve (12); The invention is characterized in that a replacement component (2) is provided on the damping cylinder (11) and the connecting sleeve (12), and the replacement component (2) comprises: A fixed frame (21) fixedly connected to the outer side wall of the damping cylinder (11); An inner ring (211) is arranged inside the fixing frame (21); A bevel gear (22) rotatably connected to the inner bottom surface of the fixed frame (21); A connecting rod (231) is symmetrically fixedly connected to the bottom of the replacement assembly (2), and the bottom end of the connecting rod (231) passes through and extends to the bottom of the fixing frame (21); A swivel (23) fixedly connected to the bottom of the connecting rod (231); A rotating shaft (24) is symmetrically and rotationally connected to the inner wall of the fixed frame (21); A bevel gear (25) is fixedly connected to one end of the rotating shaft (24) close to the inner ring (211) and meshes with the bevel gear (22); A screw rod (26) is fixedly connected to a side wall of the bevel gear (25) close to the inner ring (211); The fixing mechanism (27) is arranged on the inner ring (211) and the screw rod (26).

2. The shock absorber that is easy to replace and maintain according to claim 1, characterized in that: The fixing mechanism (27) comprises: A threaded sleeve (271) is threadedly connected to the outside of the screw rod (26), and one end of the threaded sleeve (271) away from the screw rod (26) passes through the inner ring (211). The threaded sleeve (271) is a rectangular parallelepiped; A fixed block (272) fixedly connected to an end of the threaded sleeve (271) away from the screw rod (26); A fixing rod (273) is symmetrically arranged on a side wall of the fixing block (272) away from the threaded sleeve (271); The limiting groove (274) is symmetrically arranged on the outer side wall of the connected sleeve (12).

3. The shock absorber that is easy to replace and maintain according to claim 2, characterized in that: An optical axis (3) is fixedly connected to one side of the fixed block (272) close to the inner ring (211), and the optical axis (3) passes through and is slidably connected to the inner ring (211).

4. The shock absorber that is easy to replace and maintain according to claim 3, characterized in that: The optical axes (3) are symmetrically arranged in multiple groups, and at least two groups are arranged.

5. The shock absorber that is easy to replace and maintain according to claim 4, characterized in that: The connecting sleeve (12) is symmetrically provided with guide blocks (4) on the outside, and the top of the fixing frame (21) is provided with a guide groove (41), and the position of the guide groove (41) corresponds to that of the guide block (4).

6. The shock absorber that is easy to replace and maintain according to claim 5, characterized in that: A limiting plate (275) is symmetrically provided on one side of the threaded sleeve (271) close to the screw rod (26).

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