Circulation valve plate for oil pressure type automobile shock absorber, shock absorber and automobile

Abstract

The utility model discloses a circulation valve plate for an oil pressure type automobile shock absorber, which comprises a valve plate body, a mounting hole is arranged on the valve plate body, the mounting hole is arranged on one side of the central position of the valve plate body, an oil storage groove surrounding the mounting hole is arranged on one surface of the valve plate body, and the oil storage groove is communicated with the mounting hole. A first liquid passing hole and a second liquid passing hole which are symmetrically arranged about the center line of the valve plate body are formed in the valve plate body and located on one side of the mounting hole; according to the structure, the product is convenient to machine and produce, the convenience of installation in the inner space of the shock absorber can be effectively improved, the oil flow path can be optimized, the response sensitivity of the valve plate is enhanced, the abrasion of the valve plate is reduced, the oil supply stability can be improved, the oil flow characteristic can be optimized, the cavitation phenomenon is reduced, and the service life of the valve plate is prolonged; the balance of oil flow distribution can be improved, the response speed and stability of the shock absorber are enhanced, and oil flowing noise is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorber valve plate technology, and more specifically to a flow valve plate for hydraulic automotive shock absorbers. Background Technology

[0002] During the operation of the shock absorber, the valve plates open and close in a timely manner according to the movement of the shock absorber piston, controlling the flow of damping oil or gas between different chambers, thereby generating damping force and reducing the vibration of the frame and body.

[0003] By changing the opening degree, number, shape, or orifice diameter of the valve plates, the damping characteristics of the shock absorber can be adjusted to adapt to different road conditions and driving conditions, providing a comfortable driving experience and stable handling performance. For example, when driving at high speeds, a larger damping force is needed to maintain vehicle stability, and the valve plates will adjust accordingly to reduce the flow of oil or gas; when driving over bumpy roads, the valve plates will appropriately increase the flow of oil or gas to provide a better cushioning effect.

[0004] The valve plates used in existing automotive shock absorbers have high performance requirements and new requirements for their machining accuracy. Generally, they need to be processed and manufactured using high-precision high-pressure punch presses to ensure that the circumference, flatness, thickness tolerance, etc. of the valve plates meet the usage requirements. Otherwise, it may affect the sealing performance and fitting accuracy between the valve plates and the valve seats, which increases the processing cost and production difficulty. Utility Model Content

[0005] The purpose of this invention is to provide a flow valve plate for hydraulic automotive shock absorbers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model employs the following technical means:

[0007] This utility model discloses a flow valve for a hydraulic automotive shock absorber, comprising a valve body, an installation hole on the valve body located at one side of the center position of the valve body, an oil reservoir surrounding the installation hole on one surface of the valve body, and a first fluid passage hole and a second fluid passage hole symmetrically arranged about the center line of the valve body on one side of the installation hole.

[0008] Furthermore, the valve plate body has a circular structure, and an arc-shaped notch is provided on the outer edge of the valve plate body. An arc-shaped protrusion is also provided on one side of the arc-shaped notch on the outer edge of the valve plate body.

[0009] Furthermore, the thickness of the valve plate body is 0.1-0.6 mm.

[0010] Furthermore, the oil storage tank includes a first part and a second part. The first part is a circular groove surrounding the mounting hole. The second part communicates with the first part. The second part has a rectangular structure. One side of the second part is tangent to the first part. The width of the second part is smaller than the diameter of the first part.

[0011] Furthermore, the depth of the oil storage tank is 0.02-0.05 mm.

[0012] Furthermore, both the first liquid passage and the second liquid passage are circular holes.

[0013] Furthermore, both the first liquid passage and the second liquid passage are oblong-shaped holes.

[0014] Furthermore, the first liquid passage includes an inclined first side, with a vertically arranged second side and a third side connected to both ends of the first side, the other end of the second side being connected to a fourth side via an arc segment, the other end of the fourth side being connected to the third side, the fourth side being parallel to the first side, the connection points between the first side and the second and third sides being rounded, and the connection point between the third side and the fourth side being rounded.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model's structural product is easy to process and manufacture, effectively improving the convenience of installation within the shock absorber's internal space. It can optimize the oil flow path, enhance the valve plate's response sensitivity, reduce valve plate wear, improve oil supply stability, optimize oil flow characteristics, reduce cavitation, extend valve plate lifespan, improve the balance of oil flow distribution, enhance the shock absorber's response speed and stability, and reduce oil flow noise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the product structure in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the product structure in an embodiment of this utility model. Detailed Implementation

[0022] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. The following embodiments and drawings are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. The drawings only schematically show the parts related to the technical solution of this application, and do not represent their actual structure as a product.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0027] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0029] In this embodiment, a flow valve for a hydraulic automotive shock absorber includes a valve body 100. The valve body 100 has a mounting hole 200 located on one side of the center position of the valve body 100. An oil reservoir 300 surrounding the mounting hole 200 is formed on one surface of the valve body 100. The valve body 100 has a first fluid passage 400 and a second fluid passage 500 located on one side of the mounting hole 200 and symmetrically arranged with respect to the center line of the valve body 100.

[0030] Based on the above description, this utility model discloses a flow valve for a hydraulic automotive shock absorber. The valve includes a valve body 100, and the mounting hole 200 on the valve body 100 is offset from the center of the valve body 100. That is, the mounting hole 200 on the valve body 100 is eccentric to the valve body 100, which optimizes the oil flow path, enhances the valve's response sensitivity, and reduces valve wear.

[0031] When the oil passes through the valve, due to the eccentricity of the mounting hole 200, the oil enters or flows out of the valve area in an asymmetrical manner. This asymmetrical flow path can generate more complex vortices and turbulence around the valve. During the compression stroke, when the oil passes through the compression valve, the eccentric mounting hole 200 causes the oil to generate a lateral force as it flows through the valve. This helps to break the laminar flow state that the oil might have originally had, allowing the oil to mix and disperse more fully. This allows for more precise control of the oil flow rate under different pressures. During vehicle operation, road conditions are complex and changeable. This precise throttling control can better adapt to impacts of different intensities, thereby providing more suitable damping force, enabling the valve plate to more precisely control the oil flow rate under different pressures.

[0032] In addition, the eccentric mounting hole 200 can change the force on the valve plate. When the oil pressure acts on the valve plate, due to the eccentricity of the mounting hole 200, the valve plate will generate a torque. This torque makes it easier for the valve plate to open or close under a small pressure difference. For example, during the extension stroke, when the oil pressure changes slightly, the torque acting on the valve plate with the eccentric mounting hole 200 will cause the extension valve to open or close faster, thereby enabling the shock absorber to respond more quickly to the rebound of the wheel; and can improve the vehicle's driving comfort and handling stability.

[0033] When a vehicle is traveling at high speed, minor bumps and vibrations on the road surface occur frequently. The valve plate with the eccentric mounting hole 200 can quickly adjust the damping force, effectively filtering these vibrations and keeping the vehicle body stable. Under conditions such as vehicle steering or braking, it can also quickly respond to changes in vehicle body posture and provide timely support and damping.

[0034] In one or more possible embodiments of this utility model, the valve plate body 100 has a circular structure, and an arc-shaped notch 110 is provided on the outer edge of the valve plate body 100. An arc-shaped protrusion 120 located on one side of the arc-shaped notch 110 is also provided on the outer edge of the valve plate body 100, which can reduce the weight of the valve plate body 100, facilitate processing, and reduce the installation difficulty of the equipment.

[0035] In one or more possible embodiments of this utility model, the thickness of the valve plate body 100 is 0.1-0.6 mm.

[0036] In one or more possible embodiments of this utility model, the oil storage tank 300 includes a first part 310 and a second part 320. The first part 310 is a circular groove surrounding the mounting hole 200. The second part 320 communicates with the first part 310 and has a rectangular structure. One side of the second part 320 is tangent to the first part 310, and the width of the second part 320 is smaller than the diameter of the first part 310. By setting the oil storage tank 300, the stability of oil supply can be improved, the oil flow characteristics can be optimized, the occurrence of cavitation can be reduced, and the service life of the valve plate can be extended.

[0037] In one or more possible embodiments of this utility model, the depth of the oil storage tank 300 is 0.02-0.05 mm.

[0038] The shock absorber valve plate disclosed in this utility model is used in hydraulic automotive shock absorbers. The valve plate body 100 has an oil reservoir 300 formed around the mounting hole 200 with an eccentric structure, which can provide a temporary storage space for oil. When the flow rate of oil in the valve area fluctuates instantaneously, such as when the vehicle frequently passes through small bumpy roads during driving, the pressure and flow rate of the oil change rapidly. The oil reservoir 300 can store a certain amount of oil, which can be replenished in time when the oil flow demand suddenly increases, ensuring the stability of the oil supply.

[0039] As the oil passes through the area surrounding the eccentric mounting hole 200, a portion enters the oil reservoir 300 before flowing out. This flow pattern allows the oil to form a more complex circulation in a localized area, which is beneficial for oil mixing and temperature equalization.

[0040] When the oil flows rapidly within the shock absorber, cavitation may occur due to pressure changes. The oil reservoir 300 acts as a buffer zone, reducing the severity of rapid pressure changes. When the oil pressure drops, the oil in the reservoir 300 can be replenished promptly, reducing the formation of localized vacuum areas and effectively preventing cavitation. This is crucial for maintaining the stable performance of the shock absorber and extending its service life.

[0041] The oil reservoir 300 disperses the impact force of the oil on the valve plate. Without the reservoir 300, the oil directly impacts the valve plate, especially near the eccentrically positioned mounting hole 200. Due to the asymmetrical flow of the oil, this can lead to excessive localized stress on the valve plate. The reservoir 300 guides the oil into the reservoir first, then acts gently on the valve plate, resulting in a more even distribution of the impact force. This helps reduce wear and fatigue damage to the valve plate. Extending the valve plate's lifespan reduces shock absorber malfunctions and repairs caused by valve plate damage, thus lowering vehicle maintenance costs.

[0042] In one or more possible embodiments of this utility model, the first liquid passage 400 and the second liquid passage 500 are both circular holes.

[0043] In one or more possible embodiments of this utility model, the first liquid passage 400 and the second liquid passage 500 are both oblong holes.

[0044] In one or more possible embodiments of this utility model, the first liquid passage 400 includes an inclined first side 410, with a vertically arranged second side 420 and a third side 430 respectively connected to both ends of the first side 410. The other end of the second side 420 is connected to a fourth side 440 through an arc 450. The other end of the fourth side 440 is connected to the third side 430. The fourth side 440 is parallel to the first side 410. The connections between the first side 410 and the second side 420 and the third side 430 are rounded. The connection between the third side 430 and the fourth side 440 is also rounded.

[0045] The shock absorber valve plate disclosed in this utility model is used in hydraulic automotive shock absorbers. The valve plate body 100 has an oil reservoir 300 formed around the mounting hole 200 with an eccentric structure, which can provide a temporary storage space for oil. When the flow rate of oil in the valve area fluctuates instantaneously, such as when the vehicle frequently passes through small bumpy roads during driving, the pressure and flow rate of the oil change rapidly. The oil reservoir 300 can store a certain amount of oil, which can be replenished in time when the oil flow demand suddenly increases, ensuring the stability of the oil supply.

[0046] As the oil passes through the area surrounding the eccentric mounting hole 200, a portion enters the oil reservoir 300 before flowing out. This flow pattern allows the oil to form a more complex circulation in a localized area, which is beneficial for oil mixing and temperature equalization.

[0047] When the oil flows rapidly within the shock absorber, cavitation may occur due to pressure changes. The oil reservoir 300 acts as a buffer zone, reducing the severity of rapid pressure changes. When the oil pressure drops, the oil in the reservoir 300 can be replenished promptly, reducing the formation of localized vacuum areas and effectively preventing cavitation. This is crucial for maintaining the stable performance of the shock absorber and extending its service life.

[0048] The oil reservoir 300 disperses the impact force of the oil on the valve plate. Without the reservoir 300, the oil directly impacts the valve plate, especially near the eccentrically positioned mounting hole 200. Due to the asymmetrical flow of the oil, this can lead to excessive localized stress on the valve plate. The reservoir 300 guides the oil into the reservoir first, then acts gently on the valve plate, resulting in a more even distribution of the impact force. This helps reduce wear and fatigue damage to the valve plate. Extending the valve plate's lifespan reduces shock absorber malfunctions and repairs caused by valve plate damage, thus lowering vehicle maintenance costs.

[0049] The specific embodiments disclosed in this utility model fall within the protection scope of the claims of this utility model and are specific subordinate implementations of the feature parts of this utility model. The protection content of the specific embodiments is merely an explanation of the protection scope of the claims of this utility model. The protection scope of this utility model is not limited to the protection content of the specific embodiments, and the protection content of the specific embodiments should not be construed as a limitation on the protection scope of the claims of this utility model.

Claims

1. A flow valve plate for a hydraulic automotive shock absorber, characterized in that: The device includes a valve plate body (100), on which a mounting hole (200) is provided. The mounting hole (200) is located on one side of the center position of the valve plate body (100). An oil storage groove (300) surrounding the mounting hole (200) is provided on one surface of the valve plate body (100). A first liquid passage hole (400) and a second liquid passage hole (500) are provided on the side of the mounting hole (200) and are symmetrically arranged about the center line of the valve plate body (100).

2. The flow valve plate for a hydraulic automotive shock absorber according to claim 1, characterized in that: The valve body (100) has a circular structure. An arc-shaped notch (110) is provided on the outer edge of the valve body (100). An arc-shaped protrusion (120) is also provided on the outer edge of the valve body (100) on one side of the arc-shaped notch (110).

3. A flow valve plate for a hydraulic automotive shock absorber according to claim 1, characterized in that: The thickness of the valve plate body (100) is 0.1-0.6 mm.

4. A flow valve plate for a hydraulic automotive shock absorber according to claim 1, characterized in that: The oil storage tank (300) includes a first part (310) and a second part (320). The first part (310) is a circular groove surrounding the mounting hole (200). The second part (320) communicates with the first part (310). The second part (320) has a rectangular structure. One side of the second part (320) is tangent to the first part (310). The width of the second part (320) is smaller than the diameter of the first part (310).

5. A flow valve plate for a hydraulic automotive shock absorber according to claim 4, characterized in that: The depth of the oil storage tank (300) is 0.02-0.05 mm.

6. A flow valve plate for a hydraulic automotive shock absorber according to claim 1, characterized in that: Both the first liquid passage (400) and the second liquid passage (500) are circular holes.

7. A flow valve plate for a hydraulic automotive shock absorber according to claim 1, characterized in that: Both the first liquid passage (400) and the second liquid passage (500) are oblong holes.

8. A flow valve plate for a hydraulic automotive shock absorber according to claim 1, characterized in that: The first liquid passage (400) includes an inclined first side (410), and the two ends of the first side (410) are respectively connected to a vertically arranged second side (420) and a third side (430). The other end of the second side (420) is connected to a fourth side (440) through an arc (450). The other end of the fourth side (440) is connected to the third side (430). The fourth side (440) is parallel to the first side (410). The connection between the first side (410) and the second side (420) and the third side (430) is rounded. The connection between the third side (430) and the fourth side (440) is also rounded.

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