Connecting structure of continuous damping adjustable shock absorber and electromagnetic valve

By setting a connecting body and a sealing ring between the shock absorber and the solenoid valve, the sealing problem of traditional connection structures is solved, achieving higher sealing performance and service life, and reducing maintenance costs.

CN224592594UActive Publication Date: 2026-08-04WUHU BETHEL AUTOMOTIVE SAFETY SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU BETHEL AUTOMOTIVE SAFETY SYST CO LTD
Filing Date
2025-07-16
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The connection structure between traditional shock absorbers and solenoid valves is prone to inaccurate positioning during the welding process, resulting in poor sealing, easy leakage, shortened service life, and increased maintenance costs.

Method used

The system adopts a connection structure between a continuously damped adjustable shock absorber and a solenoid valve. The connecting body is equipped with an oil inlet and an oil passage for the solenoid valve. Combined with axial and radial sealing rings, the sealing performance is enhanced, and a stable connection is achieved through threaded engagement.

Benefits of technology

This improves the sealing performance at the connection between the shock absorber and the solenoid valve, preventing leakage, extending service life, and reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a continuous damping adjustable shock absorber and electromagnetic valve's connecting structure includes continuous damping adjustable shock absorber, solenoid valve and connecting body ontology, connecting body ontology is located between continuous damping adjustable shock absorber and solenoid valve, is equipped with solenoid valve oil inlet hole and oil hole on connecting body ontology, and oil liquid passes solenoid valve oil inlet hole on connecting body ontology and enters solenoid valve, after flowing out from solenoid valve, again, the oil hole on connecting body ontology is returned to continuous damping adjustable shock absorber, and connecting body ontology simple and reliable structure can conveniently connect continuous damping adjustable shock absorber with solenoid valve, be favorable to improving the leakproofness of continuous damping adjustable shock absorber and solenoid valve junction, can avoid the leakage, be favorable to improving the service life, be favorable to reducing maintenance cost.
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Description

Technical Field

[0001] This utility model belongs to the field of vibration damper and solenoid valve connection. Specifically, this utility model relates to a connection structure of a continuously damped adjustable vibration damper and a solenoid valve. Background Technology

[0002] Shock absorbers are a crucial component of automobiles, ensuring smooth driving. The solenoid valve and shock absorber are connected via a connector to achieve functional integration. This connector facilitates a buffer transition between the traditional metal flow hole and the rubber static seal, enabling continuous circulation and exchange of oil between the shock absorber's reservoir and the solenoid valve. However, traditional connection structures are prone to inaccurate positioning of the metal flow hole during welding, leading to localized stress on the rubber and deformation in the axial and radial directions. While airtightness tests may pass shortly after welding, leakage occurs at the shock absorber reservoir and solenoid valve structure after vehicle installation, as the chassis absorbs vibrations from various road surfaces. In severe cases, a large amount of dust and oil accumulates on the surface of the shock absorber reservoir along the cylinder wall, causing premature shock absorber failure, reducing its lifespan, and increasing maintenance costs.

[0003] To address the aforementioned issues, patent application number 202420285272X discloses a connecting device for a solenoid valve body base in an electronically controlled vibration damper, relating to the field of component connection and fastening technology. The solenoid valve body base includes a base component, an intermediate connecting component, and a top component. Upper and lower tooling are used to press-fit the various components of the solenoid valve body base, but this method fails to solve the aforementioned problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, a connection structure for a continuously damped adjustable vibration damper and a solenoid valve is provided. This structure is simple and reliable, facilitates the connection between the vibration damper and the solenoid valve, improves the sealing performance of the connection between the vibration damper and the solenoid valve, prevents leakage, extends service life, and reduces maintenance costs. Utility Model Content

[0005] This utility model is designed to solve the aforementioned problems. Its purpose is to provide a connection structure for a continuously damped adjustable vibration damper and a solenoid valve that is simple and reliable, facilitates easy connection between the damper and solenoid valve, improves the sealing of the connection, prevents leakage, extends service life, and reduces maintenance costs. To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a connection structure between a continuously damped adjustable vibration damper and a solenoid valve, characterized by including a continuously damped adjustable vibration damper, a solenoid valve, and a connecting body. The connecting body is located between the continuously damped adjustable vibration damper and the solenoid valve, and the connecting body is provided with an oil inlet and an oil passage for the solenoid valve.

[0007] In the connection structure between the continuously damped adjustable shock absorber and the solenoid valve provided by this utility model, the solenoid valve may also have the following features: the solenoid valve includes a solenoid valve body, a solenoid valve seat, a solenoid housing, and a coil housing; the solenoid valve body is connected to the solenoid valve seat, the solenoid housing is connected to the solenoid valve body, and the coil housing is connected to the solenoid valve body; the solenoid valve body is provided with evenly distributed oil outlet holes.

[0008] The connection structure between the continuously damped adjustable damper and the solenoid valve provided by this utility model may also have the following feature: the continuously damped adjustable damper includes a damper body and a damper middle cylinder connected to the damper body.

[0009] In the connection structure between the continuously damped adjustable shock absorber and the solenoid valve provided by this utility model, it may also have the following features: the connecting body is provided with a connecting flange, the connecting flange is connected to the solenoid valve seat, and oil passage holes are evenly arranged on the connecting flange; the connecting body is also provided with a connecting boss, and the connecting boss is connected to the middle cylinder of the shock absorber.

[0010] In the connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model, it may also have the following feature: an axial sealing groove is provided on the connecting flange, an axial sealing ring is provided in the axial sealing groove, and the axial sealing ring is located between the solenoid valve body and the connecting body body.

[0011] In the connection structure between the continuously damped adjustable shock absorber and the solenoid valve provided by this utility model, there may also be the following feature: a radial sealing groove is provided on the connecting boss, a radial sealing ring is provided in the radial sealing groove, and the radial sealing ring is located between the solenoid valve body and the connecting body body.

[0012] In the connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model, there may also be the following feature: the solenoid valve seat is provided with a protective sealing groove, and a protective sealing ring is provided in the protective sealing groove. The protective sealing ring is located between the solenoid valve seat and the coil housing.

[0013] In the connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model, the solenoid valve seat is provided with a radial sealing surface, the radial sealing surface is provided with a reinforcing sealing ring, and the reinforcing sealing ring is located between the solenoid valve body and the solenoid valve seat.

[0014] In the connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model, it may also have the following feature: the solenoid valve seat is provided with a limiting flange, and the limiting flange abuts against the connecting body.

[0015] In the connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model, it can also have the following feature: the solenoid valve seat is provided with a threaded section.

[0016] The technical advantages of this utility model are as follows: The connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model includes a continuously damped adjustable vibration damper, a solenoid valve, and a connecting body. The connecting body is located between the continuously damped adjustable vibration damper and the solenoid valve. The connecting body is provided with an oil inlet and an oil passage for the solenoid valve. The oil enters the solenoid valve through the oil inlet on the connecting body, flows out from the solenoid valve, and then returns to the continuously damped adjustable vibration damper through the oil passage on the connecting body. The connecting body has a simple and reliable structure, which can easily connect the continuously damped adjustable vibration damper and the solenoid valve. It is beneficial to improve the sealing performance at the connection between the continuously damped adjustable vibration damper and the solenoid valve, which can prevent leakage, improve service life, and reduce maintenance costs.

[0017] Therefore, the connection structure between the continuously damped adjustable shock absorber and the solenoid valve provided by this utility model is simple and reliable, facilitates the connection between the continuously damped adjustable shock absorber and the solenoid valve, helps to improve the sealing performance at the connection between the shock absorber and the solenoid valve, avoids leakage, helps to extend service life, and helps to reduce maintenance costs. Attached Figure Description

[0018] This manual includes the following figures, which illustrate the following:

[0019] Figure 1 This is a schematic diagram of the connection structure between the continuously damped adjustable vibration damper and the solenoid valve in an embodiment of this utility model.

[0020] Figure 2 This is a cross-sectional view of the connector body in an embodiment of this utility model;

[0021] Figure 3 This is a cross-sectional view of the solenoid valve seat in an embodiment of this utility model.

[0022] The components in the diagram are labeled as follows: Continuously Damped Adjustable Vibration Damper-10, Vibration Damper Body-11, Vibration Damper Middle Cylinder-12, Solenoid Valve-20, Solenoid Valve Body-21, Solenoid Valve Distributed Oil Outlet-211, Solenoid Valve Seat-22, Protective Sealing Groove-221, Radial Sealing Surface-222, Limiting Flange-223, Threaded Section-224, Electromagnetic Housing-23, Coil Housing-24, Connector Body-30, Solenoid Valve Oil Inlet-31, Oil Through Hole-32, Connecting Flange-33, Connecting Boss-34, Axial Sealing Groove-35, Radial Sealing Groove-36, Axial Sealing Ring-40, Radial Sealing Ring-50, Protective Sealing Ring-60, and Reinforcing Sealing Ring-70. Detailed Implementation

[0023] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0024] Figure 1 This is a schematic diagram of the connection structure between the continuously damped adjustable vibration damper and the solenoid valve in an embodiment of this utility model. Figure 2 This is a cross-sectional view of the connector body in an embodiment of this utility model.

[0025] like Figure 1 and Figure 2 As shown, the connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model includes a continuously damped adjustable vibration damper 10, a solenoid valve 20, and a connecting body 30. The connecting body 30 is located between the continuously damped adjustable vibration damper 10 and the solenoid valve 20. The connecting body 30 is provided with a solenoid valve oil inlet 31 and an oil passage 32. Oil enters the solenoid valve 20 through the solenoid valve oil inlet 31 on the connecting body 30, flows out from the solenoid valve 20, and then returns to the continuously damped adjustable vibration damper 10 through the oil passage 32 on the connecting body 30. The connecting body 30 has a simple and reliable structure, which can easily connect the continuously damped adjustable vibration damper 10 and the solenoid valve 20. It is beneficial to improve the sealing performance at the connection between the continuously damped adjustable vibration damper 10 and the solenoid valve 20, avoid leakage, improve service life, and reduce maintenance costs.

[0026] The solenoid valve 20 includes a solenoid valve body 21, a solenoid valve seat 22, a solenoid housing 23, and a coil housing 24. The solenoid valve body 21 is connected to the solenoid valve seat 22, the solenoid housing 23 is connected to the solenoid valve body 21, and the coil housing 24 is connected to the solenoid valve body 21. The solenoid valve body 21 is provided with evenly distributed oil outlet holes 211. Oil enters the solenoid valve 20 through the solenoid valve inlet hole 31 on the connecting body 30, flows out from the evenly distributed oil outlet holes 211 on the solenoid valve body 21, and then returns to the continuously damped adjustable vibration damper 10 through the oil passage hole 32 on the connecting body 30. The continuously damped adjustable vibration damper 10 includes a vibration damper body 11 and a vibration damper middle cylinder 12 connected to the vibration damper body 11.

[0027] Figure 3 This is a cross-sectional view of the solenoid valve seat in an embodiment of this utility model.

[0028] like Figure 2 and Figure 3 As shown, the connecting body 30 is provided with a connecting flange 33, which is connected to the solenoid valve seat 22. The connecting flange 33 is disc-shaped and located on the side of the connecting body 30 near the solenoid valve 20. Oil passage holes 32 are evenly arranged on the connecting flange 33. The connecting body 30 is also provided with a connecting boss 34, which is located on the side of the connecting body 30 near the middle cylinder 12 of the shock absorber, so that the cross-sectional view of the connecting body 30 is "T" shaped. The connecting boss 34 is connected to the middle cylinder 12 of the shock absorber, thereby connecting the continuously damped adjustable shock absorber 10 and the solenoid valve 20 through the connecting body 30.

[0029] An axial sealing groove 35 is provided on the connecting flange 33, and an axial sealing ring 40 is provided in the axial sealing groove 35. The axial sealing ring 40 is located between the solenoid valve body 21 and the connecting body 30 to form an axial seal. A radial sealing groove 36 is provided on the connecting boss 34, and a radial sealing ring 50 is provided in the radial sealing groove 36. The radial sealing ring 50 is located between the solenoid valve body 21 and the connecting body 30 to form a radial seal. The axial sealing ring 40 and the radial sealing ring 50 work together to achieve sealing between the solenoid valve inlet hole 31, the oil passage hole 32 and the solenoid valve evenly distributed oil outlet hole 211, which improves the sealing performance at the connection between the continuously damped adjustable shock absorber 10 and the solenoid valve 20, can avoid leakage, and is conducive to improving service life and reducing maintenance costs.

[0030] like Figure 3As shown, the solenoid valve seat 22 is provided with a protective sealing groove 221, and a protective sealing ring 60 is provided in the protective sealing groove 221. The protective sealing ring 60 is located between the solenoid valve seat 22 and the coil housing 24. The protective sealing ring 60 and the coil housing 24 form a protective seal, which further improves the overall sealing performance, prevents external impurities and dust from entering the interior, further improves the service life, and helps to reduce maintenance costs.

[0031] like Figure 3 As shown, the solenoid valve seat 22 is provided with a radial sealing surface 222, and the radial sealing surface 222 is provided with a reinforcing sealing ring 70. The reinforcing sealing ring 70 is located between the solenoid valve body 21 and the solenoid valve seat 22. The reinforcing sealing ring 70 helps to improve the sealing performance between the solenoid valve body 21 and the solenoid valve seat 22.

[0032] The solenoid valve seat 22 is provided with a limiting flange 223, which abuts against the connecting body 30 and the connecting flange 33. The solenoid valve seat 22 is provided with a threaded section 224. The solenoid valve body 21 is tightened onto the solenoid valve seat 22 by thread engagement. The axial force generated by the thread tightening torque presses the axial sealing ring 40 between the connecting body 30 and the solenoid valve body 21, and transmits the axial force to the connecting body 30, which finally acts on the middle cylinder 12 of the shock absorber. At this time, the middle cylinder 12 of the shock absorber is not subjected to axial force. The axial sealing ring 40 undergoes axial compression deformation under the axial force generated by the thread tightening torque, providing axial preload to the thread and preventing the thread from loosening. A protective sealing ring 60 is provided between the coil housing 24 and the solenoid valve seat 22 to form a protective seal, which is used to seal the solenoid valve 20 from the outside world; the solenoid housing 23 is integrally injection molded with the solenoid coil, and the solenoid coil and the solenoid valve 20 are connected by the interference fit between the solenoid housing 23 and the solenoid valve 20.

[0033] The role and effect of the embodiments

[0034] The connection structure between the continuously damped adjustable vibration damper and the solenoid valve provided by this utility model includes a continuously damped adjustable vibration damper 10, a solenoid valve 20, and a connecting body 30. The connecting body 30 is located between the continuously damped adjustable vibration damper 10 and the solenoid valve 20. The connecting body 30 is provided with an oil inlet 31 and an oil passage 32 for the solenoid valve. Oil enters the solenoid valve 20 through the oil inlet 31 on the connecting body 30, flows out from the solenoid valve 20, and then returns to the continuously damped adjustable vibration damper 10 through the oil passage 32 on the connecting body 30. The connecting body 30 has a simple and reliable structure, which can easily connect the continuously damped adjustable vibration damper 10 and the solenoid valve 20. It is beneficial to improve the sealing performance at the connection between the continuously damped adjustable vibration damper 10 and the solenoid valve 20, avoid leakage, improve service life, and reduce maintenance costs.

[0035] The present invention has been described above by way of example 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 to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A connection structure between a continuously damped adjustable vibration damper and a solenoid valve, characterized in that, It includes a continuously damped adjustable shock absorber (10), a solenoid valve (20) and a connecting body (30). The connecting body (30) is located between the continuously damped adjustable shock absorber (10) and the solenoid valve (20). The connecting body (30) is provided with a solenoid valve oil inlet (31) and an oil passage (32).

2. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 1, characterized in that, The solenoid valve (20) includes a solenoid valve body (21), a solenoid valve seat (22), an electromagnetic housing (23), and a coil housing (24). The solenoid valve body (21) is connected to the solenoid valve seat (22), the electromagnetic housing (23) is connected to the solenoid valve body (21), and the coil housing (24) is connected to the solenoid valve body (21). The solenoid valve body (21) is provided with evenly distributed oil outlet holes (211).

3. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 2, characterized in that, The continuously damped adjustable damper (10) includes a damper body (11) and a damper cylinder (12) connected to the damper body (11).

4. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 3, characterized in that, The connecting body (30) is provided with a connecting flange (33), which is connected to the solenoid valve seat (22), and the oil passage (32) is evenly arranged on the connecting flange (33); the connecting body (30) is also provided with a connecting boss (34), which is connected to the middle cylinder (12) of the shock absorber.

5. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 4, characterized in that, The connecting flange (33) is provided with an axial sealing groove (35), and an axial sealing ring (40) is provided in the axial sealing groove (35). The axial sealing ring (40) is located between the solenoid valve body (21) and the connecting body body (30).

6. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 5, characterized in that, The connecting boss (34) is provided with a radial sealing groove (36), and a radial sealing ring (50) is provided in the radial sealing groove (36). The radial sealing ring (50) is located between the solenoid valve body (21) and the connecting body body (30).

7. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 6, characterized in that, The solenoid valve seat (22) is provided with a protective sealing groove (221), and a protective sealing ring (60) is provided in the protective sealing groove (221). The protective sealing ring (60) is located between the solenoid valve seat (22) and the coil housing (24).

8. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 7, characterized in that, The solenoid valve seat (22) is provided with a radial sealing surface (222), and the radial sealing surface (222) is provided with a reinforcing sealing ring (70). The reinforcing sealing ring (70) is located between the solenoid valve body (21) and the solenoid valve seat (22).

9. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 8, characterized in that, The solenoid valve seat (22) is provided with a limiting flange (223), which abuts against the connecting body (30).

10. The connection structure between the continuously damped adjustable vibration damper and the solenoid valve according to claim 2, characterized in that, The solenoid valve seat (22) is provided with a threaded section (224).