Shaped valve plate

Abstract

A profiled valve disc for a shock absorber valve system, comprising: a disc with a flat middle, a fixed hole in the center of the disc for a piston rod to pass through, a ring-shaped protrusion on the edge of the disc towards one side, the highest point of the ring-shaped protrusion is the contact point. The profiled valve disc is used with a flat valve disc and a small deformation gap adjustment valve disc, the piston rod passes through these valve discs and the piston to form a shock absorber valve system, the profiled valve disc valve system provides appropriate support for the shock absorber when the vehicle is running at high or low speed or over a curve, and provides a comfortable ride for the driver and passengers.

Description

Technical Field

[0001] This invention relates to automotive shock absorber components, specifically a uniquely shaped valve plate for a shock absorber valve system. Background Technology

[0002] Existing automotive shock absorber piston valve systems consist of a piston and a stacked circular flat valve plate. During operation, the shock absorber damping is relatively linear and cannot simultaneously meet the damping requirements of high and low speeds. Generally, an additional oil passage is needed, along with a manual or electric valve to adjust the damping, and the damping must be pre-adjusted. However, increasing the damping provides good support at high speeds or when cornering, but results in poor vibration damping at low speeds, leading to a poor driving experience. Conversely, decreasing the damping provides comfort at low speeds but fails to provide adequate support at high speeds or when cornering, resulting in severe body roll, a risk of rollover, and reduced vehicle maneuverability. Summary of the Invention

[0003] To address the shortcomings of existing shock absorber valve systems in providing adequate damping for both high and low speeds, this invention offers a uniquely shaped valve plate. Using this valve plate, the shock absorber valve system can provide better damping for the vehicle at high and low speeds or during cornering without the need for a bypass valve. Its simple and reliable structure, rapid response, and lack of prior adjustment contribute to a comfortable ride.

[0004] Technical Solution: This irregularly shaped valve plate is a flat circular plate with a fixing hole in the center for the piston rod to pass through. The edge of the plate has annular protrusions facing one direction, with the highest point of the protrusions being the force-receiving point. This irregularly shaped valve plate is used in conjunction with flat valve plates and small deformation clearance adjusting valve plates. The piston rod passes through these valve plates and the piston to form a shock absorber valve system. The assembly is as follows: The valve closest to the piston is a larger, flat valve plate that seals the piston's oil passage. On the other side of the flat valve plate is a smaller, small-deformation-amount adjustment valve plate. This small-deformation-amount adjustment valve plate can be one or more of varying sizes, overlapped to achieve the required gap between the flat valve plate and the shaped valve plate at their contact points. On the other side of the small-deformation-amount adjustment valve plate is a shaped valve plate of similar size to the flat valve plate, with its annular protrusion facing the flat valve plate. Furthermore, the smallest point of the annular protrusion on the shaped valve plate is larger than the outer diameter of the adjacent small-deformation-amount adjustment valve plate. There is a gap between the contact point of the shaped valve plate and the flat valve plate on the other side of the small-deformation-amount adjustment valve plate. On the other side of the shaped valve plate, one or more smaller, varying-sized small-deformation-amount adjustment valve plates overlap, and this small-deformation-amount adjustment valve plate serves as the limit for the piston rod fixing valve system. The valve assembly in the previous section is a valve system on one side of the piston. The shock absorber piston needs valve systems on both sides, and the valve assembly on the other side of the shock absorber piston is the same as the previous valve assembly. Attached Figure Description

[0005] Figure 1 This is a top view of the irregularly shaped valve plate. In the figure: (1) circular plate, (2) annular protrusion, (3) fixing hole;

[0006] Figure 2 This is a cross-sectional schematic diagram of a piston valve system. In the diagram: (4) piston rod, (5) piston, (6) piston oil passage, (7) flat valve plate, (8) small deformation gap adjustment valve plate, (9) irregular valve plate, (10) connection point, (11) limit, (12) oil.

[0007] The invention will be further described in detail through embodiments and in conjunction with the accompanying drawings. The irregularly shaped valve plate (9) includes a flat circular plate (1) in the middle. The center of the circular plate (1) has a fixing hole (3) through which the piston rod (4) passes. The edge of the circular plate (1) has an annular protrusion (2) facing one side. The highest point of the annular protrusion (2) is the receiving point (10). This irregularly shaped valve plate (9) is used in conjunction with the flat valve plate (7) and the small deformation gap adjustment valve plate (8). The piston rod (4) passes through these valve plates and the piston (5) to form a shock absorber valve system. The combination is as follows: the piston (5) is a larger flat valve plate (7) that can seal the piston oil passage (6). The other side of the flat valve plate (7) is a smaller small deformation gap adjustment valve plate (8). The small deformation gap adjustment valve plate (8) can be one or more of different sizes that are overlapped according to the required gap between the flat valve plate (7) and the junction (10) of the shaped valve plate (9). The other side of the small deformation gap adjustment valve plate (8) is a shaped valve plate (9) that is similar in size to the flat valve plate (7). The side of the shaped valve plate (9) with the annular protrusion (2) faces the flat valve plate (7). Moreover, the smallest part of the annular protrusion (2) of the shaped valve plate (9) is larger than the outer diameter of the adjacent small deformation gap adjustment valve plate (8). There is a gap between the junction (10) of the shaped valve plate (9) and the flat valve plate (7) on the other side of the small deformation gap adjustment valve plate (8). On the other side of the irregularly shaped valve plate (9) are one or more smaller, irregularly sized, small deformation gap adjusting valve plates (8) overlapping each other. On the other side of this small deformation gap adjusting valve plate (8) is the limit (11) of the piston rod (4) fixing valve system. The valve plate combination in front is the valve system on one side of the piston (5). The shock absorber piston (5) needs to have valve systems on both sides. The valve plate combination on the other side of the piston (5) is also the same as the valve plate combination in front. When the shock absorber is working, the faster the oil (12) in the shock absorber flows through the piston oil passage (6), the greater the flow rate, and the greater the thrust it exerts on the flat valve plate (7) that closes the oil passage (6). When the valve system of the irregular valve plate (9) is working, the oil (12) pushes the flat valve plate (7) through the piston oil passage (6), causing the flat valve plate (7) to move or deform towards the irregular valve plate (9). Since the middle of the flat valve plate (7) is pressed by the small deformation gap adjustment valve plate (8), it can only be deformed at the edge towards the irregular valve plate (9). When the edge of the flat valve plate (7) is raised higher, eliminating the gap with the connection point (10) of the irregular valve plate (9), the edge of the flat valve plate (7) will transmit the thrust of the oil (12) to the irregular valve plate (9) as a whole through the connection point (10) of the irregular valve plate (9). The irregular valve plate (9) as a whole then moves or deforms to the other side and transmits the thrust to the small deformation gap adjustment valve plate (8) on the other side. The small deformation gap adjustment valve plate (8) is fixed by the limit (11) on the piston rod (4).When the vehicle is traveling at low speed, the valve system of the irregularly shaped valve plate (9) filters the shock absorber by the following method: when the vehicle is traveling at low speed, the frequency of road surface undulations is low, the flow rate of the oil (12) in the shock absorber through the piston oil passage (6) is small, and the thrust of the oil (12) is also small. The edge deformation of the flat valve plate (7) is small and does not contact the contact point (10) of the irregularly shaped valve plate (9). The angle of the piston oil passage (6) opened by the edge of the flat valve plate (7) is sufficient to meet the damping requirements when the vehicle is traveling at low speed. The flow rate of the oil (12); When the vehicle is traveling at high speed or turning, the way the special-shaped valve plate (9) valve system provides support for the shock absorber is as follows: When the vehicle is traveling at high speed or turning, the shock absorber operates at a higher frequency, especially when turning, the outer shock absorber has a larger compression amplitude. At this time, the oil (12) in the shock absorber flows through the piston oil passage (6) at a higher velocity and with a larger flow rate. The thrust of the oil (12) on the flat valve plate (7) is also larger. When a part of the oil (12) pushes the flat valve plate (7) to the side After the edge deformation is eliminated, the gap between the edge of the flat valve plate (7) and the junction (10) of the shaped valve plate (9) is eliminated. Here, the oil (12) in the shock absorber flows to achieve vibration filtering. The thrust of another part of the oil (12) continues to push the edge of the flat valve plate (7). At this time, there is no gap between the edge of the flat valve plate (7) and the junction (10) of the shaped valve plate (9). The thrust of the oil (12) will be transmitted to the shaped valve plate (9) and the other side of the shaped valve plate (9) through the junction (10). The small deformation gap adjustment valve plate (8) is fixed by the limit (11) on the piston rod (4), so that the force required for the deformation of the irregular valve plate (9) and the small deformation gap adjustment valve plate (8) on the other side will suppress and offset the thrust of the oil (12), thereby controlling the thrust of the oil (12) on the flat valve plate (7) when the oil flow rate is large, providing suitable and high damping for the shock absorber, and realizing the support of the shock absorber for the vehicle when the vehicle is traveling at high speed or cornering.

[0008] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A shaped valve disc, comprising: In the middle is a flat circular plate with a fixing hole for the piston rod in the center. There is a ring-shaped protrusion around the edge of the plate facing one side.

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