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CN-121993530-A - Rigidity valve

CN121993530ACN 121993530 ACN121993530 ACN 121993530ACN-121993530-A

Abstract

The application discloses a rigidity valve, which comprises an end socket, a mandrel and a sealing module, wherein the end socket is provided with a valve port and a first cavity, the sealing module comprises a sealing block, a first gasket and a second gasket, a part of the end socket and a part of the sealing block are approximately enclosed to form the first cavity, the sealing block is provided with a flow hole, the first gasket and the mandrel are arranged into a whole, or the first gasket is provided with a first matching hole, a part of the mandrel is fixedly connected or limited and connected in the first matching hole, the first gasket and the sealing block are fixedly connected or limited and connected with each other, the first gasket is provided with a first communication hole, the second gasket and the sealing block are fixedly connected or limited and connected into a whole, the second gasket is provided with a second matching hole and a second communication hole, one end of the first communication hole is communicated with the first cavity, and the other end of the first communication hole is communicated with the second communication hole, and the second communication hole is communicated with the valve port. The application can relatively reduce the processing difficulty of the flow hole of the sealing block.

Inventors

  • Request for anonymity

Assignees

  • 浙江三花智能控制股份有限公司

Dates

Publication Date
20260508
Application Date
20241106

Claims (10)

  1. 1. The rigidity valve is characterized by comprising a sealing head, a mandrel and a sealing module, wherein the rigidity valve is provided with a valve port and a first cavity, the sealing module can be close to or far away from the valve port, the sealing module comprises a sealing block, a first gasket and a second gasket, part of the sealing head and part of the sealing block are approximately enclosed to form the first cavity, and the sealing block is provided with a flow hole; the first gasket and the mandrel are arranged integrally, or the first gasket is provided with a first matching hole, and part of the mandrel is fixedly connected or limited and connected in the first matching hole; The first gasket with sealing block fixed connection or spacing connection, first gasket is equipped with first communication hole, the second gasket with sealing block fixed connection or spacing connection or locate integrative, the second gasket is equipped with second mating hole and second intercommunicating pore, part dabber fixed connection or spacing connection in the second mating hole, the one end of first communication hole with first cavity intercommunication, the other end of first communication hole with second intercommunicating pore intercommunication, the second intercommunicating pore with the valve port intercommunication.
  2. 2. The stiffness valve according to claim 1, wherein a part of the spindle is located in the flow hole, an annular communication chamber is formed between the flow hole and the spindle, and the annular communication chamber communicates the first communication hole and the second communication hole.
  3. 3. The stiffness valve of claim 2 wherein the first and second gaskets are both located within the flow bore, the first gasket being welded to the sealing block, the first gasket being in interference fit with the mandrel, the second gasket being in interference fit with the sealing block, the second gasket being welded to the mandrel.
  4. 4. A stiffness valve according to claim 3 wherein an end face of the first gasket remote from the valve port is flush with and welded to an end face of the sealing block remote from the valve port.
  5. 5. A stiffness valve according to claim 3 wherein an end face of the second shim adjacent the valve port is flush with and welded to an end face of the mandrel adjacent the valve port.
  6. 6. The stiffness valve according to claim 2, wherein a first step is provided in the flow hole, a first limit step is provided on the periphery of the mandrel, one end of the first gasket, which is close to the valve port, abuts against the first step, and one end of the first gasket, which is far away from the valve port, abuts against the first limit step.
  7. 7. The stiffness valve according to claim 2, wherein a second step is provided in the flow hole, a second limiting step is provided on the periphery of the mandrel, one end of the second gasket, which is close to the valve port, abuts against the second step, and one end of the second gasket, which is far away from the valve port, abuts against the second limiting step.
  8. 8. The stiffness valve according to any of the claims 1 to 7, wherein the stiffness valve comprises a core provided with a core through hole, a part of the mandrel being located in the core through hole, the mandrel being welded to the core.
  9. 9. The stiffness valve of claim 8 wherein an end face of the core distal from the valve port includes a convex surface and a concave surface, the concave surface being closer to the valve port than the convex surface, the weld mark of the core to the mandrel being closer to the valve port than the convex surface.
  10. 10. The stiffness valve according to claim 9, wherein an end face of the mandrel remote from the valve port is flush with and welded to the concave surface of the core iron.

Description

Rigidity valve Technical Field The invention relates to the technical field of valve devices, in particular to a rigidity valve. Background The dual-cavity or three-cavity air spring for adjusting the height of the vehicle frame is arranged on the vehicle frame and is usually subjected to rigidity adjustment by means of an air spring rigidity valve, the air spring rigidity valve is provided with a valve port, the air spring rigidity valve comprises an end socket, an iron core, a valve rod and a sealing block, the valve rod is fixedly connected with the iron core, the valve rod can drive the sealing block to abut against or be far away from the valve port through the excitation action of a coil, when the rigidity valve is in an open state, the cavity volume of the dual-cavity or three-cavity air spring is increased, the compressible gas volume is increased, the rigidity is reduced, when the rigidity valve is in a closed state, the cavity volume of the dual-cavity or three-cavity air spring is reduced, the compressible gas volume is reduced, the rigidity is increased, the sealing block is provided with a circulation hole for balancing the pressure of an upper cavity and a lower cavity, and the processing of the related circulation hole is often required to be processed by adopting special equipment, and the sealing block structure can be further improved and designed for a person skilled in the art. Disclosure of Invention The application provides a rigidity valve which can relatively reduce the processing difficulty of a circulation hole of a sealing block. The application provides a rigidity valve, which comprises an end socket, a mandrel and a sealing module, wherein the rigidity valve is provided with a valve port and a first cavity, the sealing module can be close to or far from the valve port, the sealing module comprises a sealing block, a first gasket and a second gasket, part of the end socket and part of the sealing block are approximately enclosed to form the first cavity, and the sealing block is provided with a flow hole; the first gasket and the mandrel are arranged integrally, or the first gasket is provided with a first matching hole, and part of the mandrel is fixedly connected or limited and connected in the first matching hole; The first gasket with sealing block fixed connection or spacing connection, first gasket is equipped with first communication hole, the second gasket with sealing block fixed connection or spacing connection or locate integrative, the second gasket is equipped with second mating hole and second intercommunicating pore, part dabber fixed connection or spacing connection in the second mating hole, the one end of first communication hole with first cavity intercommunication, the other end of first communication hole with second intercommunicating pore intercommunication, the second intercommunicating pore with the valve port intercommunication. The rigidity valve provided by the application is improved on a sealing module, the sealing module comprises a sealing block, a first gasket and a second gasket, the first gasket and the second gasket are respectively provided with a first communication hole and a second communication hole, one end of the first communication hole is communicated with a first cavity, the other end of the first communication hole is communicated with a second communication hole, the second communication hole is communicated with a valve port, the first gasket is fixedly connected or limited to be connected or arranged into a whole with a mandrel, the first gasket is fixedly connected or limited to be connected with the sealing block, the second gasket is fixedly connected or limited to be connected with the mandrel, the second gasket is fixedly connected or arranged into a whole with the sealing block, the communication holes are formed in the two gaskets, the processing of the communication holes is relatively convenient, the pressure balance between the first cavity and the valve port can be realized, and the processing difficulty of the communication holes on the sealing block can be relatively reduced. Drawings FIG. 1 is a cross-sectional view of an embodiment of a stiffness valve provided by the present application in an open state; FIG. 2 is a cross-sectional view of the stiffness valve of FIG. 1 in a closed state; FIG. 3 is a cross-sectional view of the sealing block, cushion pad, first shim, second shim, mandrel, and seal of FIG. 1; FIG. 4 is a cross-sectional view of the seal block of FIG. 1; FIG. 5 is a top view of the first shim of FIG. 1; FIG. 6 is a top view of the second shim of FIG. 1; FIG. 7 is a perspective exploded view of a portion of the structure of FIG. 1; Fig. 8 is a cross-sectional view of the core iron and mandrel of fig. 1. The reference numerals are explained as follows: The valve comprises a valve seat 1, a valve port 1, a sealing block 2, a flow hole 2a, a first step 2B, a second step 2C, a groove 2D, a sealing piece 3,