High pressure resistant suspension fill valve

Abstract

The utility model discloses a kind of high-pressure-resistant suspension filling valves, comprising: joint base body, the joint base body is opened with connecting port;Connecting pipe, fixed in the joint base body one side, and the joint base body inside is opened with the valve cavity that is communicated with connecting port and connecting pipe interior;Valve core, by thread portion rotation installation in the valve cavity inside, and the valve core outer surface middle part has sealing ring D, the valve core outer surface one end and connecting pipe corresponding connection has sealing ring C;The utility model is provided with joint base body, valve core, sealing ring C, sealing ring D and snap spring, avoid the more complex structure of traditional valve body, cannot well high-pressure impact, the device structure is small and exquisite, simple structure, beneficial to arrangement installation, and can well high-pressure oil circuit's impact, guarantee stable sealing effect, effectively guarantee the stable operation of automobile suspension system.

Description

Technical Field

[0001] This utility model specifically relates to a high-pressure resistant suspension filling valve. Background Technology

[0002] The automotive suspension is a system in a car that supports the vehicle body and connects to the wheels. Its main purpose is to improve driving stability, comfort, and handling performance. Its primary function is to absorb the impact forces from uneven road surfaces, keeping the vehicle body stable. In the suspension system, hydraulic lines and valves connect to shock absorbers to achieve the damping effect.

[0003] During the production process, shock absorber fluid is usually not added to the PMU pump and pipelines of the suspension system. The fluid is only added later when the PMU pump and pipelines are connected to the shock absorbers, which is time-consuming and affects the assembly efficiency of the whole vehicle. It is not convenient to add a high-pressure resistant valve body at the end of the pipeline to pre-fill the PMU pump and pipelines, so that the fluid can be connected to the shock absorbers after the valve body is opened later, thus reducing the fluid filling time. Therefore, we propose a high-pressure resistant suspension filling valve. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure resistant suspension filling valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure resistant suspension filling valve, comprising:

[0006] A connector base having a connection port;

[0007] A connecting pipe is fixed to one side of the connector base, and a valve cavity communicating with the connecting port and the inside of the connecting pipe is opened on the inner side of the connector base.

[0008] The valve core is rotatably mounted inside the valve cavity via a threaded portion, and a sealing ring D is provided in the middle of the outer surface of the valve core. A sealing ring C is connected to the connecting pipe at one end of the outer surface of the valve core.

[0009] A retaining ring is disposed at one end inside the valve cavity to limit the movement of the valve core.

[0010] Preferably, the valve core is coaxial with the connecting pipe, and the cross-section of the valve core at the end corresponding to the connecting pipe is tapered.

[0011] Preferably, the outer surface of the valve core is provided with a groove corresponding to the sealing ring D, and a second gasket that contacts the sealing ring D is provided inside the groove.

[0012] Preferably, one end of the valve core has an adjusting groove.

[0013] Preferably, a sealing ring A and a first washer are sequentially arranged along the axial direction at the middle of the outer surface of the connecting pipe, and the first washer is in contact with the sealing ring A.

[0014] Preferably, a sealing ring B is fitted onto one end of the outer surface of the connecting pipe.

[0015] Preferably, the connection port and the axis of the connecting pipe are perpendicular to each other, and the connector base, the connection port and the connecting pipe are integrally formed.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model, by incorporating a connector base, valve core, sealing ring C, sealing ring D, and snap ring, avoids the problem of traditional valve body structures being too complex and unable to withstand high-pressure impacts during oil filling. This device is compact and simple in structure, easy to arrange and install, and can effectively withstand the impact of high-pressure oil circuits, ensuring a stable sealing effect and effectively guaranteeing the stable operation of the automotive suspension system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the valve core structure of this utility model.

[0021] In the diagram: 1. Connector base; 2. Connection port - welded pipe - oil filling; 3. Connecting pipe - shock absorber; 4. Valve core; 5. First washer; 6. Sealing ring B; 7. Second washer; 8. Snap ring; 9. Sealing ring C; 10. Sealing ring D; 11. Adjusting groove; 12. Sealing ring A. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a high-pressure resistant suspension filling valve, comprising:

[0024] The connector base 1 has a connection port 2.

[0025] The connecting pipe 3 is fixed to one side of the connector base 1, and a valve cavity communicating with the connecting port 2 and the inside of the connecting pipe 3 is opened on the inner side of the connector base 1.

[0026] It facilitates connection to the pipelines in the suspension system via connection port 2 and connection pipe 3 respectively;

[0027] The valve core 4 is rotatably installed inside the valve cavity via a threaded part, and the valve core 4 has a sealing ring D10 in the middle of its outer surface. One end of the outer surface of the valve core 4 is connected to the connecting pipe 3 with a corresponding sealing ring C9.

[0028] This facilitates the formation of a passage between the connection port 2 and the connection pipe 3 to transport oil in the suspension. The sealing ring D10 can effectively improve the resistance to high pressure impact, while the sealing ring C9 can be used to disconnect the passage and seal it.

[0029] A retaining ring 8 is disposed at one end inside the valve cavity to limit the movement of the valve core 4;

[0030] To prevent the valve core 4 from becoming loose and moving, and from accidentally detaching from the inside of the connector base 1, the retaining ring 8 can be manually removed from the inside of the connector base 1 later to facilitate the replacement and maintenance of the valve core 4.

[0031] In this embodiment, preferably, the valve core 4 is coaxial with the connecting pipe 3, and the cross-section of the valve core 4 and the connecting pipe 3 is tapered, which facilitates the sealing of the connecting pipe 3. The tapered design and the sealing ring C9 are used to improve the good sealing performance under high pressure impact.

[0032] In this embodiment, preferably, the outer surface of the valve core 4 is provided with a groove corresponding to the sealing ring D10, and a second washer 7 that contacts the sealing ring D10 is provided inside the groove.

[0033] The second gasket 7 is used to better support the sealing ring D10, ensuring uniform stress distribution, thereby reducing accidental leakage during sealing and improving the high-pressure sealing effect. The materials of the second gasket 7 and the first gasket 5 are preferably PTFE.

[0034] In this embodiment, preferably, an adjusting groove 11 is provided at one end of the valve core 4;

[0035] This facilitates the adjustment of the position of valve core 4.

[0036] In this embodiment, preferably, a sealing ring A12 and a first washer 5 are sequentially arranged along the axial direction at the middle of the outer surface of the connecting pipe 3, and the first washer 5 is in contact with the sealing ring A12.

[0037] When the joint base 1 is connected to the steel pipe in the suspension through the connecting pipe 3, it provides a good connection and sealing effect at the contact point between the steel pipe and the connecting pipe 3, reducing leakage.

[0038] In this embodiment, preferably, a sealing ring B6 is fitted onto one end of the outer surface of the connecting pipe 3;

[0039] This facilitates better sealing at the connection between the joint base 1 and the external steel pipe, ensuring stable sealing under high pressure impact.

[0040] In this embodiment, preferably, the axis connecting the connection port 2 and the connecting pipe 3 are perpendicular to each other, and the connector base 1, the connection port 2 and the connecting pipe 3 are integrally formed; this facilitates manufacturing and ensures that the filling valve has a small volume, thus facilitating its arrangement and installation.

[0041] The working principle and usage process of this utility model are as follows: During use, the joint base 1 and the steel pipe in the suspension system are welded together to form a pipeline assembly.

[0042] The valve core 4 forms a seal with the sealing ring C9 and the connector base 1. The system can be injected with hydraulic oil through the pipeline. This sealing structure can withstand a pressure of 2MPa and can still maintain a seal after 30 cycles of use.

[0043] When the piping assembly is assembled into the system, the valve core 4 is turned to the right by a wrench to create a passage between the piping and the left port. At this time, the connector base 1 and the valve core 4 are sealed by the second washer 7 and the sealing ring D10, and a retaining ring 8 is used at the right end to limit the movement and prevent the valve core 4 from displacing under pressure.

[0044] When the system is working normally, the connector base 1 forms a seal with the fitting through the left valve core 4 and the first gasket 5, while ensuring that the pipeline is unobstructed and connected to the MPU pump and shock absorber. The system pressure reaches 20-25MPa during normal operation.

[0045] During use, the upper end of connector 2 is fixed to the oil pipe in the suspension system. At this time, valve core 4 abuts against the end of connector pipe 3 to achieve a seal. High-pressure oil is then pumped into the connector base 1, connector 2, and oil pipe in the suspension system via the pump body for temporary storage. Later, after reuse, connector pipe 3 is connected to the shock absorber via a pipeline. At this time, the rotary valve core 4 is moved away from connector pipe 3 to connect connector 2 to connector pipe 3, thus connecting the suspension oil pipe to the shock absorber. This operation is convenient, and the design of this filling valve facilitates ensuring the total oil level in the pipeline. The valve core 4 is designed to provide a seal when hydraulic oil is added, with a filling pressure of 1-2 MPa. After the pipeline is assembled into the suspension system, the overall system pressure reaches 20-25 MPa. The valve core 4 needs to ensure the sealing performance under high-pressure pulse impact of the system, and can meet the pulse sealing performance of 1 million times under 20 MPa pressure. This device can reduce the filling time during the assembly of the entire system by pre-filling oil in the PMU pump and pipeline, thereby reducing the oil filling time during the assembly of the entire system and improving the production efficiency of the vehicle assembly. The system operates at a relatively high pressure.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistant suspension filling valve, characterized in that, include: The connector base (1) has a connection port (2) on it. The connecting pipe (3) is fixed to one side of the connector base (1), and the inner side of the connector base (1) is provided with a valve cavity that communicates with the connecting port (2) and the inside of the connecting pipe (3); The valve core (4) is rotatably installed inside the valve cavity through the threaded part, and the valve core (4) has a sealing ring D (10) in the middle of the outer surface. One end of the outer surface of the valve core (4) is connected to the connecting pipe (3) with a sealing ring C (9). A retaining ring (8) is provided at one end of the inner side of the valve cavity to limit the movement of the valve core (4).

2. The high-pressure resistant suspension filling valve according to claim 1, characterized in that: The valve core (4) is coaxial with the connecting pipe (3), and the cross-section of the valve core (4) and the connecting pipe (3) is tapered.

3. The high-pressure resistant suspension filling valve according to claim 1, characterized in that: The outer surface of the valve core (4) is provided with a groove corresponding to the sealing ring D (10), and a second gasket (7) is provided inside the groove to contact the sealing ring D (10).

4. A high pressure resistant suspension fill valve as defined in claim 1, wherein: One end of the valve core (4) is provided with an adjusting groove (11).

5. A high pressure resistant suspension fill valve as defined in claim 1, wherein: The connecting pipe (3) has a sealing ring A (12) and a first washer (5) arranged sequentially along the axial direction on the middle part of its outer surface, and the first washer (5) is in contact with the sealing ring A (12).

6. A high pressure resistant suspension fill valve as defined in claim 1, wherein: A sealing ring B (6) is fitted on one end of the outer surface of the connecting pipe (3).

7. A high pressure resistant suspension fill valve as defined in claim 1, wherein: The axis of the connection port (2) and the connection pipe (3) are perpendicular to each other, and the connector base (1), the connection port (2) and the connection pipe (3) are integrally formed.

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