High-sealing slow-moving control valve

Abstract

The utility model discloses a high-sealing slow-moving control valve which comprises a valve body, a plurality of connectors are arranged on the valve body, and the connectors are arranged in a hole shape. Each connector is provided with a sealing piece and a loading piece, wherein the sealing piece is used for enabling the outer peripheral wall of the pipeline imbedding end to be connected with the inner peripheral wall of the connector in a sealed mode when the external pipeline imbedding end is imbedded, the loading piece is used for being in linkage fit with the sealing piece so as to apply acting force to the outer peripheral wall of the external pipeline imbedding end, and the sealing piece is detachably connected with the connector. The utility model solves the problem that the sealing strength between the interface and the pipeline on the valve body of the traditional slow-moving control valve is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of slow-moving control valves, in particular to a high-sealing slow-moving control valve. Background Art

[0002] ‌The retarder control valve is a device used to control the slow movement of a vehicle. It adjusts and controls the speed of the vehicle by controlling the valve body assembly to ensure safety and stability during driving. The retarder control valve is installed on the central instrument panel on the right side of the driver. It is a neutral closing control valve used to apply continuous force to keep the vehicle moving at a safe and stable speed when the vehicle is going downhill. There are several interfaces on the traditional valve body, including the tank interface "T" and the adjustment outlet "R" interface. The coordination of the retarder control valve and other equipment is achieved through the connection between the external pipeline and the interface. The traditional interface and the pipeline are usually sealed by a sealing ring, but the sealing strength is low, and it is easy to loosen or shake when the vehicle is bumpy or driving for a long time or the pipeline is subjected to high external stress loading, which further leads to the failure of the connection between the interface and the pipeline, and even the failure of the seal. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a high-sealing slow-moving control valve to solve the problem of low sealing strength between the interface on the valve body of the traditional slow-moving control valve and the pipeline.

[0004] To achieve the above-mentioned purpose, the utility model provides a high-sealing slow-moving control valve, including a valve body, a plurality of interfaces on the valve body, the interfaces being arranged in a hole shape, each of the interfaces being provided with a sealing member for sealingly connecting the outer peripheral wall of the pipeline insertion end with the inner peripheral wall of the interface when the external pipeline insertion end is inserted, and a loading member for cooperating with the sealing member to apply a force to the outer peripheral wall of the external pipeline insertion end, and the sealing member and the interface are detachably connected.

[0005] The advantages of adopting the above technical scheme are as follows: before installing the external pipeline, the seal is installed in the interface, and then the loader cooperates with the seal. When the external pipeline is connected to the interface, the seal seals the gap between the outer peripheral wall of the pipeline insertion end and the inner peripheral wall of the interface, and then the loader applies a force to the outer peripheral wall of the pipeline insertion end, and the loader limits the pipeline insertion end, so as to improve the connection strength between the pipeline insertion end and the interface, thereby avoiding the pipeline loosening and causing a gap between the outer peripheral wall of the pipeline insertion end and the interface, and the sealing strength between the interface and the pipeline is achieved through the combination of the loader and the seal, so as to avoid overflow at the connection between the interface and the pipeline.

[0006] The utility model is further configured as follows: the sealing member comprises a sealing sleeve, the outer peripheral wall of the sealing sleeve is threadedly connected to the inner peripheral wall of the interface, the inner peripheral walls at both ends of the sealing sleeve are affixed with expansion rings for expansion fit with the outer peripheral wall of the external pipeline insertion end, the two expansion rings are arranged opposite to each other, and the expansion rings are made of sealing rubber material.

[0007] The benefits of adopting the above technical solution are: the sealing sleeve can be quickly disassembled and assembled through the threaded cooperation between the sealing sleeve and the interface, so as to facilitate early installation and later maintenance; in the above technology, the sealing between the outer peripheral wall of the pipeline insertion end and the inner peripheral wall of the sealing sleeve is achieved through the expansion cooperation of two relative expansion rings and the pipeline. At the same time, because the expansion ring is made of sealing rubber material, it has a certain sealing strength, and when the expansion cooperation is carried out, a force is applied to the pipeline insertion end to achieve initial limiting of the pipeline insertion end.

[0008] The utility model is further configured as follows: a plurality of loading grooves are provided on the inner circumferential wall of the sealing sleeve along the axial direction of the sealing sleeve, and the plurality of loading grooves are circumferentially arranged on the inner circumferential wall of the sealing sleeve, and a metal spring is provided in each of the loading grooves, and the metal spring is composed of a raised portion raised in the axial direction of the sealing sleeve and two end portions connected to the inner wall of the loading groove, and the outer wall surface of the raised portion is abutting surface for abutting and cooperating with the outer circumferential wall of the external pipeline insertion end.

[0009] The advantages of adopting the above technical solution are as follows: in the above technology, when the pipeline is inserted into the interface and screwed into the axial hole of the sealing sleeve, the outer peripheral wall of the pipeline insertion end will gradually contact the raised part of the metal spring sheet until the pipeline insertion end and the sealing sleeve are plugged and matched. At this time, the plurality of raised parts are all in contact with the outer peripheral wall of the pipeline insertion end, and the metal spring sheet has a certain elasticity, so that when the pipeline is inserted, the raised part of the metal spring sheet will be squeezed and slightly deformed. The elasticity generated by the deformation reset of the metal spring sheet will act on the pipeline insertion end, further realizing the limit of the pipeline insertion end, thereby ensuring that the pipeline can be inserted into the sealing sleeve when the vehicle is bumped. When the pipeline is bumpy or runs for a long time or is subjected to high external stress loading, the pipeline will not shake or loosen at the interface, thereby avoiding shaking or loosening of the pipeline insertion end to cause failure of the connection between the pipeline and the interface, and further avoiding failure of the seal between the pipeline insertion end and the interface; in the above technology, several loading slots can be connected as a whole according to actual production and installation requirements, and similarly, several metal spring sheets can be connected as a whole according to actual production and installation requirements, thereby improving the limiting strength of the pipeline insertion end and realizing the seal between the outer peripheral wall of the pipeline insertion end and the inner peripheral wall of the sealing sleeve.

[0010] The utility model is further configured as follows: a sealing groove is circumferentially provided on the inner peripheral wall of the interface opening, a sealing ring is provided in the sealing groove, the sealing ring is made of elastic sealing rubber material and the inner peripheral wall surface of the sealing ring is a sealing surface for expansion fit with the outer peripheral wall of the sealing sleeve.

[0011] The advantages of adopting the above technical solution are as follows: in the above technology, the expansion and tightening limit of the sealing sleeve is achieved through the cooperation between the sealing groove and the sealing ring, thereby improving the sealing strength between the sealing ring and the sealing sleeve.

[0012] The utility model is further configured that: the raised portion is gradually raised from an end portion close to the interface opening to the other end portion toward the axis direction of the sealing sleeve.

[0013] The benefit of adopting the above technical solution is that: in the above technology, the raised portion is gradually raised from the end close to the interface opening to the other end toward the axial direction of the sealing sleeve, so that the force exerted by the raised portion becomes stronger when the pipeline insertion end is inserted into the sealing sleeve, further achieving the limitation of the pipeline, and at the same time being adaptable to pipelines of different diameters, so that when the pipeline diameter is too small, it can be inserted deeper into the sealing sleeve, and when the pipeline diameter is too large, it can be inserted shallower into the sealing sleeve, thereby improving the adaptation range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional view of the utility model;

[0015] Figure 2 for Figure 1 Section view. DETAILED DESCRIPTION

[0016] The utility model provides a high-seal slow-moving control valve, including a valve body 1, a plurality of interfaces 11 on the valve body 1, the interfaces 11 are arranged in a hole shape, each of the interfaces 11 is provided with a sealing member for sealingly connecting the outer peripheral wall of the pipeline insertion end with the inner peripheral wall of the interface 11 when the external pipeline insertion end is inserted, and a loading member for cooperating with the sealing member to apply a force to the outer peripheral wall of the external pipeline insertion end, the sealing member and the interface 11 are detachably connected, the sealing member includes a sealing sleeve 2, the outer peripheral wall of the sealing sleeve 2 is threadedly connected with the inner peripheral wall of the interface 11, the inner peripheral walls at both ends of the sealing sleeve 2 are affixed with expansion rings 21 for expansion-fitting with the outer peripheral wall of the external pipeline insertion end, the two expansion rings 21 are arranged opposite to each other, the expansion rings 21 are made of sealing rubber material, and the inner peripheral wall of the sealing sleeve 2 is along the axis of the sealing sleeve 2 A plurality of loading grooves 22 are provided in the direction, and the plurality of loading grooves 22 are circumferentially arranged on the inner circumferential wall of the sealing sleeve 2. A metal spring 3 is provided in each of the loading grooves 22. The metal spring 3 is composed of a raised portion 31 raised in the axial direction of the sealing sleeve 2 and two end portions 32 connected to the inner wall of the loading groove 22. The outer wall surface of the raised portion 31 is abutting surface for abutting with the outer circumferential wall of the external pipeline insertion end. A sealing groove 12 is circumferentially provided on the inner circumferential wall at the opening of the interface 11. A sealing ring 121 is provided in the sealing groove 12. The sealing ring 121 is made of elastic sealing rubber material and the inner circumferential wall surface of the sealing ring 121 is a sealing surface for expansion fit with the outer circumferential wall of the sealing sleeve 2. The raised portion 31 is gradually raised in the axial direction of the sealing sleeve 2 from the end 32 close to the opening of the interface 11 to the other end 32.

[0017] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A high-sealing slow-moving control valve, comprising a valve body, a plurality of interfaces on the valve body, characterized in that: The interface is arranged in a hole shape, and each of the interfaces is provided with a sealing member for sealingly connecting the outer peripheral wall of the pipeline insertion end with the inner peripheral wall of the interface when the external pipeline insertion end is inserted, and a loading member for cooperating with the sealing member to apply a force to the outer peripheral wall of the external pipeline insertion end, and the sealing member is detachably connected to the interface.

2. A high-sealing slow-moving control valve according to claim 1, characterized in that: The sealing component includes a sealing sleeve, the outer peripheral wall of the sealing sleeve is threadedly connected to the inner peripheral wall of the interface, and the inner peripheral walls at both ends of the sealing sleeve are affixed with expansion rings for expansion fit with the outer peripheral wall of the external pipeline insertion end, the two expansion rings are arranged opposite to each other, and the expansion rings are made of sealing rubber material.

3. A high-sealing slow-moving control valve according to claim 2, characterized in that: The inner circumferential wall of the sealing sleeve is provided with a plurality of loading grooves along the axial direction of the sealing sleeve, and the plurality of loading grooves are arranged circumferentially on the inner circumferential wall of the sealing sleeve. A metal spring is provided in each of the loading grooves, and the metal spring is composed of a raised portion raised in the axial direction of the sealing sleeve and two end portions connected to the inner wall of the loading groove, and the outer wall surface of the raised portion is abutting surface for abutting and cooperating with the outer circumferential wall of the external pipeline insertion end.

4. A high-sealing slow-moving control valve according to claim 3, characterized in that: A sealing groove is circumferentially provided on the inner peripheral wall of the interface opening, a sealing ring is arranged in the sealing groove, the sealing ring is made of elastic sealing rubber material and the inner peripheral wall surface of the sealing ring is a sealing surface for expansion fit with the outer peripheral wall of the sealing sleeve.

5. A high-sealing slow-moving control valve according to claim 4, characterized in that: The raised portion is gradually raised from an end portion close to the interface opening to the other end portion in the direction of the sealing sleeve axis.

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