Damping force continuously adjustable shock absorber

Abstract

The utility model relates to adjustable shock absorber technical field, concretely relates to the damper force continuous adjustable shock absorber, including shock absorber and control valve, control valve and shock absorber's bottom keep intercommunication, including valve body, the valve rod of setting in valve body and the piston head fixed in the valve rod bottom in control valve, the inside wall on valve body is fixed with two groups of side plates symmetrically, the piston head is hollow formula structure, and the middle part of piston head is opened with round groove, and the valve rod is fixed in round groove, and the middle part of piston head is hollow formula structure, forms the inner groove, the middle part of piston head is opened with ring groove, and the inner groove keeps intercommunication with ring groove, realizes the function of adjusting inside up and down cavity volume, the angle of rotation can be controlled for the user, and the control of different flow rates can be realized in different positions, and after reaching the requirement, can be fixed through the nut and the top end of valve rod, realizes fixed, so the device reaches the function that the damper force is continuously adjustable when using, satisfies the use demand of the scene.

Description

Technical Field

[0001] This utility model relates to the field of adjustable shock absorber technology, specifically to a shock absorber with continuously adjustable damping force. Background Technology

[0002] Continuous Damping Control System (CDC) is a state-of-the-art automotive vibration reduction system that intelligently identifies road conditions. CDC consists of an electronic control unit, CAN bus, four wheel vertical acceleration sensors, four body vertical acceleration sensors, and four damper proportional valves. The working principle of CDC is that the electronic control unit, based on the signals from the sensors and the control mode provided by the user, performs calculations and analysis before sending commands to the suspension. The suspension can then adjust its stiffness and damping coefficient according to the commands from the electronic control unit, maintaining good stability of the vehicle body during driving and controlling the vibration response of the vehicle body within acceptable limits.

[0003] However, existing continuously damped adjustable shock absorbers have complex structures, high manufacturing costs, and require a lot of time for installation, debugging, and other work, as well as high maintenance costs, which increases the operating costs of vehicles. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a continuously adjustable damping force shock absorber, which can effectively solve the problems in the existing technology.

[0006] Technical solution

[0007] This utility model provides a continuously adjustable damping force shock absorber, including a shock absorber and a control valve. The bottom end of the control valve and the shock absorber are connected. The control valve includes a valve body, a valve stem disposed in the valve body, and a piston head fixed to the bottom of the valve stem. Two sets of side plates are symmetrically fixed on the inner side wall of the valve body. The piston head has a hollow structure, and a circular groove is opened through the middle of the piston head. The valve stem is fixed in the circular groove. The middle of the piston head has a hollow structure, forming an inner groove. An annular groove is opened in the middle of the piston head. The inner groove is connected to the annular groove. An arc-shaped plate is inserted in the inner groove. The top end of the arc-shaped plate is fixedly connected to the valve stem.

[0008] Furthermore, both sides of the piston head are provided with side grooves whose dimensions are adapted to the side plate dimensions.

[0009] Furthermore, the cross-sections of the annular groove and the arc-shaped plate are both semi-circular, and the valve stem is a threaded rod structure.

[0010] Furthermore, the thickness of the arc-shaped plate is adapted to the inner diameter height of the inner groove, and the outer diameter of the arc-shaped plate is larger than the outer diameter of the annular groove.

[0011] Furthermore, the piston head has an upper and lower spliced ​​structure, the top of the valve body is fixed with a valve cover, the valve stem contacts the middle of the valve cover, and a locking nut is sleeved on the outside of the valve stem. A threaded hole is opened in the middle of the valve cover, and the valve stem engages with the threaded hole for fixation. Beneficial effects

[0012] This invention, through its control valve structure, allows for the control of the liquid flow rate at the bottom of the control valve by adjusting the position of the valve stem within the valve body. Due to the high viscosity of the liquid, the system can control the volume of liquid entering the shock absorber within a given unit, thereby controlling the damping force. The specific control steps are as follows: the user rotates the valve stem structure, causing the valve stem and its bottom arc-shaped plate to rotate. Because the valve stem is a threaded rod structure and engages with the valve cover, its height changes during rotation, thus compressing the liquid between the valve cover and the piston head. The medium flows through the annular groove inside the piston head and into the shock absorber. As the arc-shaped plate rotates, it covers a certain space in the upper and lower annular grooves, thus controlling the flow rate of the medium. Since the arc-shaped plate is movably fitted inside the inner groove, the piston head can move up and down along the side plates on both sides, adjusting the volume of the upper and lower cavities inside. The rotation angle can be controlled by the user, and different positions can achieve different flow rates. After the desired flow rate is achieved, the device can be fixed by attaching a nut to the top of the valve stem. Therefore, this device provides continuously adjustable damping force to meet the needs of on-site use. 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;

[0015] Figure 2 This is a cross-sectional view of the control valve of this utility model;

[0016] Figure 3 This is an exploded view of the control valve of this utility model.

[0017] Figure 4 This is an exploded view of the valve stem and piston head in this utility model.

[0018] The labels in the diagram represent: 1. Shock absorber; 2. Control valve; 21. Valve body; 22. Valve stem; 221. Arc plate; 23. Piston head; 231. Side groove; 232. Inner groove; 233. Annular groove; 24. Valve cover; 25. Side plate. Detailed Implementation

[0019] 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.

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Example: Continuously adjustable damping force shock absorber, see attached diagram. Figure 1 - Appendix Figure 4 The system includes a shock absorber 1 and a control valve 2. The bottom ends of the control valve 2 and the shock absorber 1 are connected. The control valve 2 includes a valve body 21, a valve stem 22 disposed in the valve body 21, and a piston head 23 fixed to the bottom of the valve stem 22. Two sets of side plates 25 are symmetrically fixed on the inner side wall of the valve body 21. The piston head 23 has a hollow structure and a circular groove is opened through the middle of the piston head 23. The valve stem 22 is fixed in the circular groove. The middle of the piston head 23 has a hollow structure, forming an inner groove 232. An annular groove 233 is opened in the middle of the piston head 23. The inner groove 232 is connected to the annular groove 233. An arc-shaped plate 221 is inserted into the inner groove 232. The top end of the arc-shaped plate 221 is fixedly connected to the valve stem 22.

[0022] Both sides of the piston head 23 are provided with side grooves 231 whose size is adapted to the side plate 25; the cross-section of the annular groove 233 and the arc plate 221 are both semi-circular structures, and the valve stem 22 is a threaded rod structure.

[0023] The thickness of the arc plate 221 is adapted to the inner diameter and height of the inner groove 232, and the outer diameter of the arc plate 221 is larger than the outer diameter of the annular groove 233; the piston head 23 is a top-bottom spliced ​​structure, the top of the valve body 21 is fixed with a valve cover 24, the valve stem 22 contacts the middle of the valve cover 24, and a locking nut is sleeved on the outer side of the valve stem 22, and a threaded hole is opened in the middle of the valve cover 24, and the valve stem 22 is engaged and fixed with the threaded hole.

[0024] By utilizing the structure of the control valve 2, the flow rate of the liquid passing through the bottom of the control valve 2 can be controlled by the position of the valve stem 22 within the valve body 21. Due to the high viscosity of the liquid, the volume of liquid entering the shock absorber 1 within a unit space can be controlled, thereby controlling the damping force. The specific control steps are as follows: the user can rotate the valve stem 22, causing the valve stem 22 and its bottom arc-shaped plate 221 to rotate. Since the valve stem 22 is a threaded rod structure and engages with the valve cover 24, the height of the valve stem 22 will change during rotation, thereby squeezing the liquid between the valve cover 24 and the piston head 23, allowing it to pass through... The annular groove 233 inside the piston head 23 enters the shock absorber 1. During the rotation of the arc plate 221, the arc plate 221 will cover a certain space of the upper and lower annular grooves 233 to achieve the function of controlling the flow rate of the medium. Since the arc plate 221 is movably sleeved in the inner groove 232, the piston head 23 can move up and down along the side plates 25 on both sides to adjust the volume of the upper and lower internal cavities. The rotation angle can be controlled by the user, and different positions can achieve different flow rate control. After the requirements are met, it can be fixed by the nut to the top of the valve stem 22. Therefore, when this device is used, it achieves the function of continuously adjustable damping force to meet the needs of on-site use.

[0025] 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 continuously adjustable shock absorber of damping force, characterized by, The device includes a shock absorber (1) and a control valve (2), with the bottom ends of the control valve (2) and the shock absorber (1) connected. The control valve (2) includes a valve body (21), a valve stem (22) disposed within the valve body (21), and a piston head (23) fixed to the bottom of the valve stem (22). Two sets of side plates (25) are symmetrically fixed on the inner wall of the valve body (21). The piston head (23) has a hollow structure, and the piston head (23) has a hollow structure. A circular groove is provided through the middle, and the valve stem (22) is fixed in the circular groove. The middle part of the piston head (23) is a hollow structure, forming an inner groove (232). An annular groove (233) is provided in the middle of the piston head (23). The inner groove (232) and the annular groove (233) are in communication. An arc plate (221) is inserted in the inner groove (232). The top end of the arc plate (221) is fixedly connected to the valve stem (22).

2. The continuously adjustable damping force shock absorber according to claim 1, characterized by, Both sides of the piston head (23) are provided with side grooves (231) whose size is adapted to the side plate (25).

3. The continuously adjustable damping force shock absorber according to claim 1, characterized by, The cross-sections of the annular groove (233) and the arc plate (221) are both semi-circular, and the valve stem (22) is a threaded rod structure.

4. The continuously adjustable damping force shock absorber according to claim 1, characterized by, The thickness of the arc plate (221) is adapted to the inner diameter height of the inner groove (232), and the outer diameter of the arc plate (221) is greater than the outer diameter of the annular groove (233).

5. The continuously adjustable damping force shock absorber according to claim 4, characterized by The piston head (23) is a top-bottom splicing structure. The valve cover (24) is fixed at the top of the valve body (21). The valve stem (22) contacts the middle of the valve cover (24). A locking nut is sleeved on the outside of the valve stem (22). A threaded hole is opened in the middle of the valve cover (24). The valve stem (22) is engaged and fixed with the threaded hole.

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