Shock absorber with damping value convenient to adjust
By designing a shock absorber including a cylinder, an oil chamber, a guide, a sleeve foot, a piston valve, a rod body, a secondary oil cylinder, an upper cover, a damping adjustment chamber, a floating piston, an adjustment plate and a damping spring, the problems of inhumanization of the adjustment mechanism design and insufficient structural stability in the prior art are solved, and simple adjustment of the damping value and structural stability are achieved.
Patent Information
- Application Number
- CN202422045093.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing shock absorbers with adjustable damping value have insufficient humanization in the adjustment mechanism design, inconvenient operation, and poor structural stability, making it difficult to meet different driving conditions and drivers' personalized needs.
A shock absorber including a cylinder, an oil chamber, a guide, a sleeve foot, a piston valve, a rod body, a secondary oil cylinder, an upper cover, a damping adjustment chamber, a floating piston, an adjustment plate and a damping spring are designed. The distance between the adjustment plate and the floating piston is adjusted by the adjustment mechanism, and the pressure of the damping spring is changed, thereby realizing the adjustment of the damping value.
It realizes simple and convenient adjustment of damping values, adapts to different driving conditions and driver needs, and at the same time improves the stability of the structure and avoids failures.
Smart Images
Figure CN222910635U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, in particular to a shock absorber with adjustable damping value for easy adjustment. Background Technique
[0002] With the continuous improvement of people's requirements for vehicle performance, the shock absorber of the vehicle suspension system, as one of the key components affecting vehicle handling performance and riding comfort, has become increasingly prominent. Traditional shock absorbers usually adopt a fixed damping value design, which means that once the shock absorber is manufactured, its damping characteristics are basically fixed. Although this design has a simple structure, it is often difficult to achieve the best performance when facing different driving conditions and driver needs.
[0003] To overcome this limitation, a variety of shock absorbers with adjustable damping values have emerged on the market. These shock absorbers usually adjust the damping value by changing the size or shape of the internal fluid passage, so as to be able to adapt to different driving scenarios to a certain extent. However, the existing shock absorbers with adjustable damping values still have some deficiencies. For example, the adjustment mechanisms of some adjustable shock absorbers are not designed humanely, are inconvenient to operate, and sometimes even require professional tools to complete the adjustment. Or some shock absorbers' adjustment mechanisms are prone to failure and have poor structural stability. In view of the above existing problems, this application aims to provide a shock absorber with adjustable damping value for easy adjustment, which can simply and conveniently adjust the damping value to adapt to different driving conditions and the personalized needs of drivers, and at the same time has high stability. Content of the Utility Model
[0004] The utility model provides a shock absorber with adjustable damping value for easy adjustment, which solves the above problems existing in the prior art during use.
[0005] The technical solution of the utility model is realized as follows: A shock absorber with adjustable damping value for easy adjustment, including a cylinder body, an oil cavity is arranged inside the cylinder body, a guide is arranged at the upper end of the cylinder body, a socket is arranged at the lower end of the cylinder body, a piston valve is movably arranged in the oil cavity, a rod body is connected to the piston valve, and the rod body penetrates upward through the guide. It is characterized in that: a secondary oil cylinder is fixedly connected to the socket, an upper cover is fixedly connected to the upper end of the secondary oil cylinder, a damping adjustment cavity is opened inside the secondary oil cylinder, an oil passage communicating the oil cavity with the damping adjustment cavity is opened inside the socket, a floating piston is movably arranged in the damping adjustment cavity, an adjustment plate is arranged on the upper side of the damping adjustment cavity, an adjustment mechanism for controlling the distance between the adjustment plate and the floating piston is arranged on the upper cover, a damping spring is arranged between the adjustment plate and the floating piston, and both ends of the damping spring respectively abut against the control adjustment plate and the floating piston.
[0006] Preferably, the adjusting mechanism includes a mounting base, a rotary cap, a rotating column, a threaded sleeve, and a driving column. The mounting base is fixedly connected to the upper cover. The rotating column is rotatably fitted on the mounting base. The threaded sleeve is fixed to the lower side of the mounting base. The upper end of the rotating column penetrates through the mounting base and is fixedly connected to the rotary cap. The driving column is threadedly fitted in the threaded sleeve. The lower end of the driving column is fixedly connected to the adjusting plate. An upwardly open slot is formed in the driving column. A plug column is integrally formed at the lower end of the rotating column. The plug column is slidably fitted in the slot and cannot rotate relative to the slot.
[0007] Preferably, the plug column is prismatic, and the shape of the slot matches that of the plug column and is used for the plug column to be fitted therein with a clearance.
[0008] Preferably, sealing rings are provided between the upper cover and the auxiliary oil cylinder, between the mounting base and the upper cover, and between the rotating column and the mounting base.
[0009] Preferably, an annular groove is formed on the lower end surface of the adjusting plate, and a placement groove is formed on the upper side of the floating piston. The upper and lower ends of the damping spring are respectively located in the annular groove and the placement groove.
[0010] Preferably, an anti-detachment mechanism is provided between the plug column and the slot, and the anti-detachment mechanism is used to prevent the plug column from detaching from the slot.
[0011] Preferably, the anti-detachment mechanism includes a plurality of anti-detachment blocks fixedly connected to the lower side of the plug column. The driving column is provided with a chute on the side wall of the slot for the anti-detachment blocks to be slidably fitted therein, and the upper end of the chute abuts against the anti-detachment blocks.
[0012] In summary, the beneficial effects of the present utility model are as follows:
[0013] 1. When the present utility model performs shock absorption work, the rod body drives the piston valve downward, so that the oil in the oil chamber is squeezed into the damping adjustment chamber through the oil passage and pushes the floating piston upward. The present utility model can adjust the distance between the adjusting plate and the floating piston through the adjusting mechanism, so as to change the force of the damping spring pressing on the floating piston at the same height. When the adjusting plate is closer to the floating piston, the oil needs a greater force to push the floating piston to compress the damping spring upward, thus playing a role in damping adjustment. This structure has good stability and is very convenient for adjusting the damping value. More specifically, the present utility model can drive the driving column to rotate in the threaded sleeve through the rotating column by rotating the rotary cap. Due to the threaded fit of the driving column in the threaded sleeve, the driving column will move up and down during rotation. Since the adjusting plate is fixed to the lower end of the driving column, the up and down movement of the adjusting plate is realized, that is, the distance between the adjusting plate and the floating piston is changed. In summary, the present utility model only needs to rotate the rotary cap to achieve damping adjustment, which is very simple and convenient.
[0014] 2. The anti - detachment mechanism is used to prevent the insertion post from detaching from the slot, improving the structural stability and making the utility model less prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 It is a schematic diagram of the structure when the adjusting plate is moved downward by the adjusting mechanism in the present utility model;
[0018] Figure 3 It is Figure 1 a partial enlarged schematic diagram of part A in
[0019] Figure 4 It is an exploded three - dimensional structure schematic diagram of the rotating column and the driving column in the present utility model;
[0020] Figure 5 It is a three - dimensional structure schematic diagram of the driving column in the present utility model.
[0021] In the figure: 1, cylinder body; 2, oil cavity; 3, guide; 4, socket; 5, oil passage; 6, piston valve; 7, rod body; 8, auxiliary oil cylinder; 9, upper cover; 10, damping adjustment cavity; 11, floating piston; 12, placement groove; 13, adjusting plate; 14, annular groove; 15, damping spring; 16, mounting seat; 17, screw cap; 18, rotating column; 19, insertion post; 20, anti - detachment block; 21, threaded sleeve; 22, driving column; 23, slot; 24, sliding groove; 25, sealing ring; 26, upper abutting cap; 27, lower abutting seat; 28, return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following will combine the attached Figures 1-5 drawings in the embodiments of the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0023] Embodiment:
[0024] AsFigures 1 to 5 As shown in the figure, the present utility model discloses a shock absorber facilitating damping value adjustment, which comprises a cylinder body 1. An oil chamber 2 is arranged inside the cylinder body 1. A guide device 3 is arranged at the upper end of the cylinder body 1, and a socket 4 is arranged at the lower end of the cylinder body 1. A piston valve 6 is movably arranged inside the oil chamber 2. A rod body 7 is connected to the piston valve 6. The rod body 7 penetrates upward through the guide device 3. An upper abutting cap 26 is connected to the rod body 7, and a lower abutting seat 27 is connected to the cylinder body 1. A return spring 28 is arranged between the upper abutting cap 26 and the lower abutting seat 27. In the present utility model, a secondary oil cylinder 8 is fixedly connected to the socket 4. The secondary oil cylinder 8 is arranged parallel to the cylinder body 1. An upper cover 9 is fixedly connected to the upper end of the secondary oil cylinder 8. A damping adjustment chamber 10 is formed inside the secondary oil cylinder 8. An oil passage 5 communicating the oil chamber 2 with the damping adjustment chamber 10 is formed inside the socket 4. In addition, a floating piston 11 is movably arranged inside the damping adjustment chamber 10. An adjustment plate 13 is arranged on the upper side of the damping adjustment chamber 10. The adjustment plate 13 is located on the upper side of the floating piston 11. An adjustment mechanism for controlling the distance between the adjustment plate 13 and the floating piston 11 is arranged on the upper cover 9. In addition, a damping spring 15 is arranged between the adjustment plate 13 and the floating piston 11. Two ends of the damping spring 15 respectively abut against the adjustment plate 13 and the floating piston 11. When the present utility model performs shock absorption work, the rod body 7 drives the piston valve 6 downward, so that the oil liquid inside the oil chamber 2 is extruded into the damping adjustment chamber 10 through the oil passage 5 and pushes the floating piston 11 to move upward. The present utility model can adjust the distance between the adjustment plate 13 and the floating piston 11 through the adjustment mechanism, so as to change the force of the damping spring 15 pressing on the floating piston 11 at the same height. When the adjustment mechanism controls the adjustment plate 13 to be closer to the floating piston 11, the force required for the oil liquid to push the adjustment plate 13 upward to the same height will be greater. Therefore, the damping adjustment function is achieved. As shown in Figure 2 the figure, it is a structural schematic diagram when the adjustment plate 13 is moved downward by the adjustment mechanism.
[0025] Specifically, as shown in Figure 3As shown in the figure, the adjusting mechanism includes a mounting base 16, a rotary cap 17, a rotating column 18, a threaded sleeve 21 and a driving column 22. Among them, the mounting base 16 is fixedly connected to the upper cover 9, the rotating column 18 is rotatably fitted on the mounting base 16, and the threaded sleeve 21 is fixed to the lower side of the mounting base 16. The upper end of the rotating column 18 penetrates through the mounting base 16 and is fixedly connected to the rotary cap 17. In addition, the driving column 22 is threadedly fitted in the threaded sleeve 21, and the lower end of the driving column 22 is fixedly connected to the adjusting plate 13. An upward-opening slot 23 is provided in the driving column 22, and a plug post 19 is integrally formed at the lower end of the rotating column 18. The plug post 19 is slidably fitted in the slot 23 and cannot rotate relative to the slot 23, so that the rotating column 18 can drive the driving column 22 to rotate when rotating. When the present utility model adjusts the adjusting plate 13 up and down, by rotating the rotary cap 17, the rotating column 18 can drive the driving column 22 to rotate in the threaded sleeve 21. Due to the threaded fit in the threaded sleeve 21, the driving column 22 will move up and down during rotation. Since the adjusting plate 13 is fixed to the lower end of the driving column 22, the up and down movement of the adjusting plate 13 is realized, that is, the distance between the adjusting plate 13 and the floating piston 11 is changed. To sum up, the present utility model only needs to rotate the rotary cap 17 to achieve damping adjustment, which is very simple and convenient.
[0026] Further, the specific structure in which the plug post 19 cannot rotate relative to the slot 23 is as Figure 4 shown. The plug post 19 is prism-shaped, and the slot 23 matches the shape of the plug post 19 and is used for the plug post 19 to be fitted in with a clearance.
[0027] To improve the sealing performance of the present utility model, sealing rings 25 are provided between the upper cover 9 and the auxiliary oil cylinder 8, between the mounting base 16 and the upper cover 9, and between the rotating column 18 and the mounting base 16.
[0028] To improve the structural stability of the damping spring 15, an annular groove 14 is provided on the lower end surface of the adjusting plate 13, a placement groove 12 is provided on the upper side of the floating piston 11, and the upper and lower ends of the damping spring 15 are respectively located in the annular groove 14 and the placement groove 12.
[0029] In addition, an anti-detachment mechanism is provided between the plug post 19 and the slot 23. The anti-detachment mechanism is used to prevent the plug post 19 from detaching from the slot 23, improve the structural stability, and make the present utility model not prone to failure.
[0030] Specifically, as Figure 4 shown in Figure 5 the figure, the anti-detachment mechanism includes a plurality of anti-detachment blocks 20 fixedly connected to the lower side of the plug post 19, and the driving column 22 is provided with a chute 24 on the side wall of the slot 23 for the anti-detachment blocks 20 to be slidably fitted in. The upper end of the chute 24 abuts against the anti-detachment blocks 20.
[0031] It should be noted that the terms pointed out by the present utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.
[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A shock absorber for adjusting damping value, comprising a cylinder, an oil chamber is arranged in the cylinder, a guide is arranged at the upper end of the cylinder, a sleeve foot is arranged at the lower end of the cylinder, a piston valve is movably arranged in the oil chamber, a rod is connected to the piston valve, and the rod penetrates the guide upward, characterized in that: A secondary oil cylinder is fixedly connected to the sleeve foot, and an upper cover is fixedly connected to the upper end of the secondary oil cylinder. A damping adjustment chamber is provided in the secondary oil cylinder, and an oil passage connecting the oil chamber and the damping adjustment chamber is provided in the sleeve foot. A floating piston is movably arranged in the damping adjustment chamber, and an adjustment plate is provided on the upper side of the damping adjustment chamber. An adjustment mechanism for controlling the distance between the adjustment plate and the floating piston is provided on the upper cover. A damping spring is provided between the adjustment plate and the floating piston, and two ends of the damping spring are respectively abutted against the control adjustment plate and the floating piston.
2. A shock absorber with easily adjustable damping value according to claim 1, characterized in that: The adjusting mechanism includes a mounting seat, a screw cap, a rotating column, a threaded sleeve and a driving column, the mounting seat is fixedly connected to the upper cover, the rotating column is rotatably fitted on the mounting seat, the threaded sleeve is fixed to the lower side of the mounting seat, the upper end of the rotating column penetrates through the mounting seat and is fixedly connected to the screw cap, the driving column is threadedly fitted in the threaded sleeve, the lower end of the driving column is fixedly connected to the adjusting plate, a slot with an opening facing upward is provided in the driving column, and an insertion column is integrally formed at the lower end of the rotating column, the insertion column is slidably fitted in the slot, and the insertion column cannot rotate relative to the slot.
3. A shock absorber with easy-to-adjust damping value according to claim 2, characterized in that: The plug post is in the shape of a prism, and the slot matches the shape of the plug post and is used for the plug post to be gap-fitted therein.
4. A shock absorber with easily adjustable damping value according to claim 2, characterized in that: Sealing rings are arranged between the upper cover and the auxiliary oil cylinder, between the mounting seat and the upper cover, and between the rotating column and the mounting seat.
5. A shock absorber with easily adjustable damping value according to claim 2, characterized in that: The lower end surface of the adjustment plate is provided with an annular groove, the upper side of the floating piston is provided with a placement groove, and the upper and lower ends of the damping spring are respectively located in the annular groove and the placement groove.
6. A shock absorber with easily adjustable damping value according to claim 2, characterized in that: An anti-slip mechanism is provided between the plug post and the slot, and the anti-slip mechanism is used to prevent the plug post from slipping out of the slot.
7. A shock absorber with easily adjustable damping value according to claim 6, characterized in that: The anti-slip mechanism comprises a plurality of anti-slip blocks fixedly connected to the lower side of the plug column, and the driving column is provided with a slide groove on the side wall of the slot for the anti-slip block to slide into, and the upper end of the slide groove forms a resistance to the anti-slip block.