Compression valve seat for shock absorber

By employing a folding plate and compression spring structure in the shock absorber compression valve seat, precise guidance and control of hydraulic oil are achieved, solving the problem of easy deformation and breakage of the flow baffle, and improving the service life and working effect of the shock absorber.

CN223594843UActive Publication Date: 2025-11-25JINYUN COUNTY SITAIDE ELECTRONIC INSTR CO LTD
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Patent Information

Application Number
CN202520158768.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2025-11-25
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

The compression valve seat baffle of existing shock absorbers is prone to deformation or cracking, leading to oil leakage and affecting the buffering effect and service life.

Method used

The compression valve seat with a folded plate structure includes multiple folded plates, oil guide holes, compression springs, and oil guide columns. The compression springs assist in oil control, and the upper baffle limits the movement of the folded plates, thus achieving precise guidance and control of the hydraulic oil.

Benefits of technology

It improves the flow stability and service life of hydraulic oil, avoids the deformation and oil leakage of the baffle plate, and ensures the working effect and structural compactness of the shock absorber.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of shock absorbers, and discloses a compression valve seat for a shock absorber, which comprises a valve seat body and is characterized in that a plurality of folded plates are fixedly connected to the surface of the valve seat body, a deoiling hole is formed in the middle of the valve seat body in a penetrating manner, and a plurality of oil guide holes are annularly formed in the periphery of the deoiling hole at equal intervals; the oil guide hole is formed in the valve seat body in a penetrating manner; and the bottom of the deoiling hole is fixedly connected with a compression spring. According to the utility model, the compression spring is arranged at the bottom of the deoiling hole, so that the bottom plate and the upper baffle can assist in controlling oil through the movement of the compression spring by the movement of the piston, and the compression spring is arranged in the concave hole, so that the interference to the valve seat body is reduced, and the service life and the elastic effect of the compression spring are ensured; compared with an existing spoiler, the telescopic effect is better and more stable, the service life is longer, the use cost is reduced, meanwhile, the problem of oil leakage caused by breakage of the spoiler is solved, and the working effect of the shock absorber is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to shock absorber technical field, concretely is a compression valve seat for shock absorber. BACKGROUND

[0002] The shock absorber is mostly constituted by inner cylinder, outer cylinder, piston assembly, spring, compression valve seat, wherein the outer cylinder is sleeved on the inner cylinder, and the outer oil cavity is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the inner oil cavity is formed in the inner cylinder, the piston assembly is arranged in the inner oil cavity, the compression valve seat is arranged in the outer cylinder, and the compression valve seat is arranged on the end of the inner cylinder, so as to guide the inner cylinder and the outer cylinder through the oil outlet hole and the oil return hole provided on the compression valve seat.

[0003] The compression valve seat of the existing shock absorber, considering the boosting effect of the piston when moving, usually sets up the flow resistance piece in the inside of the compression valve seat, thereby blocking the oil outlet, the flow resistance piece usually adopts the rubber material, in the long-term use, the flow resistance piece is easy to deform or even break due to the oil guiding pressure, which affects the buffering effect of the shock absorber, and even easily causes the oil seepage and leakage, seriously affects the service life of the shock absorber. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a compression valve seat for shock absorber, which solves the problems mentioned in the background.

[0005] The utility model provides the following technical scheme: a compression valve seat for shock absorber, which comprises a valve seat body, a plurality of flaps fixedly connected to the surface of the valve seat body, an oil removal hole formed through the middle of the valve seat body, a plurality of oil guiding holes equally spaced around the outer periphery of the oil removal hole, and the oil guiding hole being formed through the inside of the valve seat body.

[0006] A compression spring is fixedly connected to the bottom of the oil removal hole, and a bottom plate is fixedly connected to the bottom end of the compression spring, an oil guiding column is fixedly connected to the surface of the bottom plate, and the oil guiding column is arranged inside the oil guiding hole, an upper baffle is fixedly connected to the top end of the oil guiding column, and the upper baffle is arranged on the inner wall of the flap.

[0007] Further, a through hole is formed through the upper baffle and the bottom plate corresponding to the oil removal hole, and the center line of the through hole coincides with the center line of the oil removal hole.

[0008] Further, an L-shaped bending part is arranged above the flap, and the bending part limits the top of the upper baffle.

[0009] Further, the flaps are equally spaced around the surface of the valve seat body, and a flow channel is formed between adjacent flaps.

[0010] Furthermore, the upper baffle, the oil guide column, and the bottom plate are in an overall "I" shape, and the bottom plate forms a transmission structure with the oil guide column through a compression spring.

[0011] Furthermore, the bottom outer wall of the valve seat body is provided with a plurality of mounting grooves at equal intervals, and the mounting grooves are correspondingly provided below the folding plate.

[0012] Furthermore, a recessed hole is provided below the degreasing hole to accommodate a compression spring, and the compression spring is fixedly connected to the outer periphery of the degreasing hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In this utility model, by setting a compression spring at the bottom of the oil drain hole, the bottom plate and the upper baffle can be assisted in oil control by the movement of the piston through the compression spring. Furthermore, by setting the compression spring inside the concave hole, interference with the valve seat body is reduced, ensuring the service life and elasticity of the compression spring. Compared with existing baffles, the extension and contraction effect is more stable and the service life is longer, reducing the cost of use. At the same time, it avoids the oil leakage problem caused by the breakage of the baffle, ensuring the working effect of the shock absorber.

[0015] 2. In this utility model, by setting a folding plate on the surface of the valve seat body, and with the upper baffle plate extending and retracting below the folding plate, the bending part of the folding plate can limit the upper baffle plate, ensuring the movement path of the upper baffle plate driving the oil guide column. This facilitates the formation of a flow cavity above the oil guide hole by the upper baffle plate, allowing the hydraulic oil to move through the flow groove inside the flow cavity. This achieves precise guidance and control of the hydraulic oil, and the structure is compact and easy to maintain. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a compression valve seat for a shock absorber according to the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of a compression valve seat for a shock absorber according to the present invention;

[0018] Figure 3 This is a schematic diagram of the valve seat body and the oil removal hole in this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the valve seat body and the compression spring in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the valve seat body and the base plate in this utility model;

[0021] Figure 6 This is a bottom view of the oil guide hole and compression spring in this utility model.

[0022] In the figure: 1, valve seat body; 2, folding plate; 3, mounting groove; 4, oil removal hole; 5, oil guide hole; 6, compression spring; 7, bottom plate; 8, oil guide column; 9, upper baffle; 10, through hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-6 A compression valve seat for a shock absorber, comprising: a valve seat body 1, a folding plate 2, a mounting groove 3, an oil removal hole 4, an oil guide hole 5, a compression spring 6, a bottom plate 7, an oil guide column 8, an upper baffle 9 and a through hole 10, further comprising: the surface of the valve seat body 1 is fixedly connected with six folding plates 2, and the folding plates 2 are arranged annularly and equidistantly on the surface of the valve seat body 1, so that flow-through grooves are formed between adjacent folding plates 2, facilitating the flow of hydraulic oil between the flow-through grooves. Meanwhile, considering the installation friction between the valve seat body 1 and the cylinder, six mounting grooves 3 are annularly and equidistantly arranged on the outer wall of the bottom of the valve seat body 1, facilitating the user to install the valve seat body 1 between the inner and outer cylinders through the mounting grooves 3, and the mounting grooves 3 are correspondingly arranged below the folding plates 2, so that the valve seat body 1 is compact in structure and ensures the structural balance of the valve seat body 1. Meanwhile, the valve seat body 1 is made of a powder synthetic material, which is the material of the existing compression valve seat and will not be described here.

[0025] Considering the oil passage effect of the valve seat, an oil removal hole 4 is arranged through the middle of the valve seat body 1, and the oil removal hole 4 is arranged on the axis of the valve seat body 1. Meanwhile, eight oil guide holes 5 are annularly and equidistantly arranged on the outer periphery of the oil removal hole 4, and the oil guide holes 5 are arranged through the inside of the valve seat body 1, ensuring the working efficiency of the oil guide holes 5.

[0026] To assist and guide the piston movement of the compression valve seat, a compression spring 6 is fixedly connected to the bottom of the oil drain hole 4. Specifically, a recessed hole for accommodating the compression spring 6 is provided below the oil drain hole 4, and the compression spring 6 is fixedly connected to the outer periphery of the oil drain hole 4, ensuring the working effect and installation stability of the compression spring 6. At the same time, a base plate 7 is fixedly connected to the bottom end of the compression spring 6, and the base plate 7 can close the oil guide hole 5 at the bottom end. An oil guide column 8 is fixedly connected to the surface of the base plate 7, and the oil guide column 8 is inserted through the interior of the oil guide hole 5, facilitating the movement of the oil guide column 8 inside the oil guide hole 5. An upper baffle 9 is fixedly connected to the top of the oil guide column 8, and the upper baffle 9 is raised and lowered on the inner wall of the baffle plate 2. Specifically, the upper baffle 9, the oil guide column 8, and the base plate 7 are arranged in an "I" shape. With the upper baffle 9 and the bottom plate 7 fixedly connected to the upper and lower ends of the oil guide column 8, the bottom plate 7 forms a transmission structure with the oil guide column 8 through the compression spring 6. This facilitates the movement of the oil guide column 8 inside the oil guide hole 5 by the bottom plate 7 and the upper baffle 9. In order to limit the upper baffle 9, an "L"-shaped bend is provided above the folding plate 2. The bend limits the top of the upper baffle 9, so that the hydraulic oil can flow outward through the flow groove through the limit of the upper baffle 9, ensuring the movement path of the hydraulic oil. Moreover, in order to achieve a precise and efficient oil return effect, through holes 10 are provided on the upper baffle 9 and the bottom plate 7 above and below the oil drain hole 4, and the center line of the through hole 10 coincides with the center line of the oil drain hole 4, which facilitates precise oil removal through the oil drain hole 4 and improves the flow efficiency of hydraulic oil inside the cylinder.

[0027] Working principle: During use, the valve seat body 1 is fixedly installed between the inner and outer cylinders through the mounting groove 3. Under the action of the mounting groove 3, the friction of the outer wall of the valve seat body 1 is increased, ensuring the stability of the valve seat body 1. At the same time, by setting the oil guide column 8 inside the oil guide hole 5, and by setting the upper baffle 9 and the bottom plate 7 at the upper and lower ends of the oil guide column 8, the upper baffle 9 and the bottom plate 7 can close the oil guide hole 5 at one end when the piston moves, which facilitates the flow of hydraulic oil through the flow groove between the baffles 2. Moreover, by setting the through holes 10 at the upper and lower ends of the oil drain hole 4, the through holes 10 can improve the flow efficiency of the oil drain hole 4, ensuring the return oil effect. Through this setting, the bottom plate 7 and the upper baffle 9 can stably control the oil guide hole 5. Compared with the existing flow-blocking plate, it avoids the deformation problem and helps to extend the service life. Moreover, by setting the baffle 2, the top of the upper baffle 9 is limited, ensuring the flow space of hydraulic oil and realizing the rationality of hydraulic oil movement.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. 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A compression valve seat for a shock absorber according to claim 1, characterized in that ​ 3. A compression valve seat for a shock absorber according to claim 1, wherein ​ 4. A compression valve seat for a shock absorber according to claim 3, wherein ​ 5. A compression valve seat for a shock absorber according to claim 1, wherein ​ 6. A compression valve seat for a shock absorber according to claim 1, wherein ​ 7. A compression valve seat for a shock absorber according to claim 2, wherein ​