Shock absorber with FSD frequency adaptive damping adjustable valve

Abstract

This utility model relates to the technical field of adjustable regulating valve shock absorbers, specifically to an adjustable regulating valve shock absorber with FSD frequency adaptive damping. It includes a cylinder, an inlet pipe connected to the bottom of the cylinder, an adjusting device connected to the inlet pipe, and an outlet pipe connected to the other side of the adjusting device. The adjusting device includes an adjusting cylinder, a rotating rod disposed within the adjusting cylinder, a spring sleeved on the outside of the rotating rod, and a pressure joint sleeved at the bottom of the rotating rod. The pressure joint is sleeved and connected to a plug. A groove is formed on one side of the adjusting cylinder, with a side opening extending through the middle of the groove. The groove communicates with the external space through the side opening, allowing adjustment of the piston rod's damping effect and enabling active adjustment. The combination of the pressure joint and the plug allows adjustment of the opening size of the groove and the side opening. The side opening and groove are connected, and the external adapter frame contacts the outer wall of the adjusting cylinder. Therefore, oil can enter the collecting groove through the inner groove and flow back to the cylinder through the outlet pipe structure.

Description

Technical Field

[0001] This utility model relates to the technical field of adjustable valve shock absorbers, specifically to an adjustable valve shock absorber with FSD frequency adaptive damping. Background Technology

[0002] Hydraulic shock absorbers are widely used in the automotive industry to suppress residual vibrations from springs. Their internal damping force is primarily generated by the interaction of various oil passages and valve plates. In existing technology, because the diameter of the oil passages and the damping of the valve plates are fixed, the damping force can only be adjusted at the factory and cannot be changed according to actual needs. This prevents the shock absorber from being adjusted accordingly to different vehicle operating conditions, and thus cannot fully meet the damping force requirements of the automotive suspension system, making it difficult to balance ride comfort and handling stability.

[0003] In existing technologies, the regulating valve is horizontally positioned perpendicular to the outer cylinder. This design is prone to interference with other components of the vehicle chassis, increases the space required for the shock absorber, and consequently reduces the chassis space, contradicting the principle of lightweight chassis design. Most existing technologies also utilize an intermediate cylinder design, increasing manufacturing costs and process complexity. This hinders the widespread application and promotion of the product. Utility Model Content

[0004] Technical problems to be solved In view of the above-mentioned shortcomings of the existing technology, this utility model provides a shock absorber with an adjustable damping valve that adapts to frequency and has FSD, which can effectively solve the problems in the existing technology.

[0005] Technical solution

[0006] This utility model provides a shock absorber with an adjustable damping valve featuring FSD frequency adaptation, comprising a cylinder, an inlet pipe connected to the bottom of the cylinder, an adjusting device connected to the inlet pipe, and an outlet pipe connected to the other side of the adjusting device. The adjusting device includes an adjusting cylinder, a rotating rod disposed within the adjusting cylinder, a spring sleeved on the outside of the rotating rod, and a pressure joint sleeved on the bottom of the rotating rod. The pressure joint is sleeved and connected to a plug. One side of the adjusting cylinder has a groove, and a side opening is formed through the middle of the groove. The groove communicates with the external space through the side opening. This side of the adjusting cylinder communicates with a transition frame, and the transition frame has an internal cavity forming a collecting groove. The collecting groove is connected to the groove through an inner groove formed on the side wall of the transition frame. The bottom end of the adjusting cylinder is connected to the inlet pipe, while the outside of the transition frame is connected to the outlet pipe.

[0007] Furthermore, the bottom of the rotating rod is provided with an annular groove, and one side of the blocking block is fitted into the annular groove. The top end of the rotating rod is fixedly connected to the rotating block. The adjusting cylinder has a threaded ring fixed at the top opening, and the outer side of the rotating rod is engaged with the threaded ring.

[0008] Furthermore, the cylinder includes an outer cylinder and an inner cylinder, with an oil separator ring sleeved between the outer cylinder and the inner cylinder. The height of the oil separator ring is between the liquid outlet pipe and the liquid inlet pipe. A piston rod is provided inside the inner cylinder, and the bottom end of the piston rod is fixedly connected to the piston assembly.

[0009] Furthermore, a bottom valve assembly is fixed inside the cavity of the inner cylinder. The top of the bottom valve assembly has a convex structure, and the bottom of the piston assembly has a groove of a matching size.

[0010] Furthermore, the top end of the adjusting cylinder is provided with a mounting bracket structure, and the top end of the spring is located at the bottom of the mounting bracket.

[0011] Furthermore, the blocking block is a long strip structure with the same length as the groove, and the middle part of the blocking block is stuck inside the side opening. Beneficial effects

[0012] This invention utilizes an adjustment device to allow oil in the outer cylinder to flow back into the inner cylinder. The principle of adjustment is to control the adjustment device to achieve the aforementioned operation, enabling adjustable damping. In practical use, the user can rotate the rotating block structure as needed. The rotating block structure drives the bottom rotating rod structure to rotate, which in turn drives the blocking block and pressure connector structure downwards, thereby shortening the diameter of the adjusting cylinder entering the adapter frame. Combined with the viscosity of the oil, this reduces the volume of oil flowing back into the cylinder, thus adjusting the damping effect of the piston rod and achieving active adjustment. The combination of the pressure connector and blocking block structure adjusts the opening size of the slot and side opening. The side opening and slot are connected and contact the outer wall of the external adapter frame and adjusting cylinder, allowing oil to enter the collecting tank through the inner groove and flow back into the cylinder through the outlet pipe structure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the structure of this utility model; Figure 3 This is a front view of the structural cross-section of this utility model; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is an exploded view of the adjusting device in this utility model.

[0015] The labels in the diagram represent: 1. Cylinder; 11. Outer cylinder; 12. Inner cylinder; 13. Oil separator ring; 14. Bottom valve assembly; 15. Piston assembly; 16. Piston rod; 2. Adjusting device; 21. Adjusting cylinder; 211. Side port; 212. Groove; 22. Rotating rod; 221. Block; 23. Spring; 24. Press fitting; 25. Rotating block; 26. Adapter frame; 261. Inner groove; 27. Collection groove; 3. Liquid outlet pipe; 4. Liquid inlet pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example: Shock absorber with FSD frequency-adaptive damping adjustable valve, see attached document. Figure 1 -Appendix Figure 5 The system includes a cylinder 1, an inlet pipe 4 connected to the bottom of the cylinder 1, an adjusting device 2 connected to the inlet pipe 4, and an outlet pipe 3 connected to the other side of the adjusting device 2. The adjusting device 2 includes an adjusting cylinder 21, a rotating rod 22 disposed inside the adjusting cylinder 21, a spring 23 sleeved on the outside of the rotating rod 22, and a pressure connector 24 sleeved on the bottom of the rotating rod 22. The pressure connector 24 is sleeved and connected to a plug 221. A groove 212 is formed on one side of the adjusting cylinder 21. A side opening 211 is provided through the middle of the tube. The cutting groove 212 is connected to the external space through the side opening 211. This side of the adjusting cylinder 21 is connected to the adapter frame 26. The adapter frame 26 has a cavity inside, forming a collecting groove 27. The collecting groove 27 is connected to the cutting groove 212 through an inner groove 261 on the side wall of the adapter frame 26. The bottom end of the adjusting cylinder 21 is connected to the inlet pipe 4, while the outer side of the adapter frame 26 is connected to the outlet pipe 3. The bottom of the rotating rod 22 is provided with an annular groove, and one side of the blocking block 221 is fitted into the annular groove. The top end of the rotating rod 22 is fixedly connected to the rotating block 25. The adjusting cylinder 21 has a threaded ring fixed at the top opening, and the outer side of the rotating rod 22 is engaged with the threaded ring.

[0019] The cylinder 1 includes an outer cylinder 11 and an inner cylinder 12. An oil separator ring 13 is sleeved between the outer cylinder 11 and the inner cylinder 12. The height of the oil separator ring 13 is between the outlet pipe 3 and the inlet pipe 4. A piston rod 16 is provided in the inner cylinder 12. The bottom end of the piston rod 16 is fixedly connected to the piston assembly 15. Through the adjustment device 2, the oil in the outer cylinder 11 can flow back to the inner cylinder 12. Therefore, the principle of adjustment is to control the adjustment device 2 to achieve the above operation and realize the function of adjustable damping. In actual use, the user can rotate the rotating block 25 structure as needed. The rotating block 25 structure drives the bottom rotating rod 22 structure to rotate, driving the block block 221 and the pressure connector 24 structure downward, thereby shortening the diameter of the adjusting cylinder 21 entering the adapter frame 26.

[0020] The inner cylinder 12 has a bottom valve assembly 14 fixed inside its cavity. The top of the bottom valve assembly 14 has a convex structure, and the bottom of the piston assembly 15 has a groove of a matching size. The top of the adjusting cylinder 21 has a mounting bracket structure, and the top of the spring 23 is located at the bottom of the mounting bracket. The plug 221 has a long strip structure, and its length is the same as the length of the groove 212. The middle part of the plug 221 is stuck in the side opening 211. This is in accordance with the viscosity of the oil. Because of its characteristics, the volume of oil flowing back into the cylinder 1 can be reduced, and the damping effect of the piston rod 16 can be adjusted to achieve the function of active adjustment. The combination structure of the pressure connector 24 and the plug block 221 can adjust the opening size of the groove 212 and the side port 211. The side port 211 and the groove 212 are connected and contact the outer side wall of the external adapter frame 26 and the regulating cylinder 21. Therefore, the oil can enter the collecting groove 27 through the inner groove 261 and flow back into the cylinder 1 through the liquid outlet pipe 3 structure.

[0021] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A shock absorber with an adjustable damping control valve that adapts to frequency using FSD, characterized in that, The system includes a cylinder (1), an inlet pipe (4) connected to the bottom of the cylinder (1), an adjusting device (2) connected to the inlet pipe (4), and an outlet pipe (3) connected to the other side of the adjusting device (2). The adjusting device (2) includes an adjusting cylinder (21), a rotating rod (22) disposed inside the adjusting cylinder (21), a spring (23) sleeved on the outside of the rotating rod (22), and a pressure connector (24) sleeved on the bottom of the rotating rod (22). The pressure connector (24) is sleeved and connected to a plug (221). A groove (212) is formed on one side of the adjusting cylinder (21). A side opening (211) is provided through the middle of the 212), and the cutting groove (212) is connected to the external space through the side opening (211). The side of the regulating cylinder (21) is connected to the adapter frame (26), and there is a cavity inside the adapter frame (26) to form a collecting groove (27). The collecting groove (27) is connected to the cutting groove (212) through the inner groove (261) opened on the side wall of the adapter frame (26). The bottom end of the regulating cylinder (21) is connected to the inlet pipe (4), and the outer side of the adapter frame (26) is connected to the outlet pipe (3).

2. The shock absorber with FSD frequency-adaptive damping adjustable regulating valve according to claim 1, characterized in that, The bottom of the rotating rod (22) is provided with an annular groove, and one side of the plug (221) is fitted into the annular groove. The top of the rotating rod (22) is fixedly connected to the rotating block (25). The adjusting cylinder (21) has a threaded ring fixed at the top opening, and the outer side of the rotating rod (22) is engaged with the threaded ring.

3. The shock absorber with FSD frequency-adaptive damping adjustable regulating valve according to claim 1, characterized in that, The cylinder (1) includes an outer cylinder (11) and an inner cylinder (12). An oil separator ring (13) is sleeved between the outer cylinder (11) and the inner cylinder (12). The height of the oil separator ring (13) is between the liquid outlet pipe (3) and the liquid inlet pipe (4). A piston rod (16) is provided inside the inner cylinder (12). The bottom end of the piston rod (16) is fixedly connected to the piston assembly (15).

4. The shock absorber with FSD frequency-adaptive damping adjustable regulating valve according to claim 3, characterized in that, The inner cylinder (12) has a bottom valve assembly (14) fixed inside its cavity. The top of the bottom valve assembly (14) is a convex structure, and the bottom of the piston assembly (15) has a groove of a matching size.

5. The shock absorber with FSD frequency-adaptive damping adjustable regulating valve according to claim 4, characterized in that, The top of the adjusting cylinder (21) is provided with a mounting bracket structure, and the top of the spring (23) is located at the bottom of the mounting bracket.

6. The shock absorber with FSD frequency-adaptive damping adjustable regulating valve according to claim 1, characterized in that, The block (221) is a long strip structure with the same length as the groove (212). The middle part of the block (221) is stuck in the side opening (211).

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