Search

CN-121993527-A - Air spring stiffness valve and vehicle system thereof

CN121993527ACN 121993527 ACN121993527 ACN 121993527ACN-121993527-A

Abstract

The invention provides a hollow spring stiffness valve and a vehicle system thereof, wherein a buffer piece is provided with a body part and an abutting part, a gap is arranged between two adjacent abutting parts, when the hollow spring stiffness valve is fully opened, the abutting part can elastically deform to abut against the end face of a sealing plug and/or a sealing head part to realize buffering, on the basis, a cavity on one side of the buffer piece is communicated with a cavity on the other side of the buffer piece through the gap, the stress on two sides of the sealing plug can be relatively ensured to be relatively balanced, and when the hollow spring stiffness valve is electrified, the sealing plug can close a valve opening by using smaller electromagnetic force to drive.

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 (11)

  1. 1. The hollow spring rigidity valve is characterized by comprising a valve seat, a movable core assembly, a sealing head part, a sealing plug and a buffer part, wherein the valve seat is provided with a valve opening, the movable core assembly comprises a movable core and a mandrel, one end part of the mandrel is fixedly connected with the movable core, the other end part of the mandrel is connected with the sealing plug, and the sealing plug can be abutted or separated from the valve opening; One of the sealing plug and the sealing head component is provided with a groove part, the buffer piece comprises a body part and an abutting part protruding from the body part, a gap is arranged between two adjacent abutting parts, and the body part is at least partially limited in the groove part and is tightly matched with the groove part; When the sealing plug is in a fully-opened state, the sealing plug is far away from the valve opening part, the abutting part can elastically deform and abuts against the end face of the other one of the sealing plug and the sealing head part, and the cavity on one side of the buffer part and the cavity on the other side of the buffer part are communicated through the notch.
  2. 2. The air spring rigidity valve according to claim 1, wherein the sealing plug is provided with a first groove portion which is recessed inward from an upper end face of the sealing plug, the body portion is at least partially defined in the first groove portion and is tightly fitted with the first groove portion, the head member is provided with a lower end face, and the abutting portion is capable of being elastically deformed to abut against the lower end face.
  3. 3. The air spring rigidity valve according to claim 1, wherein the head member is provided with a second groove portion which is recessed inward from a lower end face of the head member, the body portion is at least partially defined in the second groove portion and is tightly fitted with the second groove portion, the sealing plug is provided with an upper end face, and the abutting portion is capable of being elastically deformed to abut against the upper end face.
  4. 4. A hollow spring rigidity valve according to claim 3, wherein the head part comprises a first head and a second head, the second head is located at the outer periphery of the first head and fixedly connected with the first head, the first head is provided with the second groove part, the first head is provided with a first duct, the first duct comprises an abutting part and an extending wall, the first duct comprises a guide hole, the sealing plug is in sliding fit with the hole wall of the guide hole, the second head is provided with a second duct, the hole wall of the second duct is in tight fit with the extending wall, and the abutting part abuts against the upper end face of the second head.
  5. 5. The air spring stiffness valve of claim 4 further comprising an elastic member, wherein the elastic member is sleeved on the outer periphery of the mandrel, wherein the first duct further comprises a spring seat hole and a mating hole, wherein the elastic member is partially positioned in the spring seat hole, and wherein the mandrel penetrates through the mating hole.
  6. 6. The air spring stiffness valve according to any one of claims 1 to 5 wherein the body portion includes an annular body, the abutment portion protruding from a body surface of the annular body, the abutment portion including a first sub-portion and a second sub-portion, the first sub-portion being closer to the body portion than the second sub-portion, a wall thickness of the first sub-portion being greater than a wall thickness of the second sub-portion, the wall thickness of the abutment portion tapering from the first sub-portion toward the second sub-portion.
  7. 7. The air spring stiffness valve according to claim 6, wherein the abutting portion is in a tooth structure, the tooth is provided along a circumferential direction of the annular body, and the tooth gathers toward an axis of the body portion.
  8. 8. The air spring stiffness valve according to any one of claims 1 to 5 further comprising a dynamic seal assembly including a seal body, a first seal member and a second seal member, the first seal member being limited to an inner sidewall of the seal body and abutting against the sealing plug, the second seal member abutting against the head member, the dynamic seal assembly being located at an outer peripheral portion of the sealing plug, the valve seat being provided with a first step portion, the seal body abutting against the first step portion.
  9. 9. The air spring stiffness valve according to any one of claims 1 to 5 wherein the sealing plug is provided with a small diameter hole and a large diameter hole, the small diameter hole, the large diameter hole and the duct of the valve port portion are communicated, the small diameter hole comprises a fitting hole penetrating through upper and lower surfaces of the sealing plug and a through hole, the through holes are located on different sides of the fitting hole, and the mandrel is tightly fitted with a wall of the fitting hole.
  10. 10. The hollow spring rigidity valve is characterized by comprising a valve seat, a movable core assembly, a sealing head part, a sealing plug, a first buffer part and a second buffer part, wherein the valve seat is provided with a valve opening, the movable core assembly comprises a movable core and a core shaft, one end part of the core shaft is fixedly connected with the movable core, the other end part of the core shaft is connected with the sealing plug, and the sealing plug can be abutted against or away from the valve opening; The sealing plug is provided with a first groove part, the sealing head part is provided with a second groove part, the first buffer part and the second buffer part respectively comprise a body part and an abutting part protruding from the body part, a gap is arranged between two adjacent abutting parts, the body part of the first buffer part is at least partially limited in the first groove part and is tightly matched with the first groove part, and the body part of the second buffer part is at least partially limited in the second groove part and is tightly matched with the second groove part; when the sealing plug is in a fully-opened state, the sealing plug is far away from the valve opening part, the abutting part of the first buffer piece can elastically deform and abut against the lower end face of the sealing head part, the abutting part of the second buffer piece can elastically deform and abut against the upper end face of the sealing plug, an excessive cavity is formed between the first buffer piece and the second buffer piece, the cavity on one side of the first buffer piece is communicated with the transitional cavity through the notch of the first buffer piece, and the cavity on one side of the second buffer piece is communicated with the transitional cavity through the notch of the second buffer piece.
  11. 11. The vehicle system comprises an air spring, wherein the air spring comprises an air spring stiffness valve and a mounting cavity part, the mounting cavity part is provided with a main cavity and an auxiliary cavity, and the air spring stiffness valve is provided with a valve opening. When the hollow spring stiffness valve is in a power-off state, the valve port part is opened, and the main cavity is communicated with the auxiliary cavity; when the air spring stiffness valve is in an electrified state, the valve port part is closed, the main cavity is not communicated with the auxiliary cavity, a first matching hole part and a second matching hole part are formed in the cavity wall of the auxiliary cavity, a fourth sealing piece and a fifth sealing piece are arranged on the air spring stiffness valve, the fourth sealing piece is in sealing fit with the first matching hole part, the fifth sealing piece is in sealing fit with the second matching hole part, and the air spring stiffness valve is of the air spring stiffness valve structure according to any one of claims 1-10.

Description

Air spring stiffness valve and vehicle system thereof [ Field of technology ] The invention relates to the technical field of automobiles, in particular to an air spring stiffness valve and an automobile system thereof. [ Background Art ] The hollow spring stiffness valve is generally applied to an automobile frame for adjusting the height of the frame, when an uneven road surface or a turn is met, the stability of the vehicle can be improved, the hollow spring stiffness valve comprises a valve seat, a movable core assembly, an end socket and a sealing block component, the valve seat is provided with a valve opening, the movable core assembly comprises a mandrel and a movable core fixedly connected with the mandrel, an O-shaped ring is sleeved on the mandrel for buffering, when the movable core is in a power-off state, the O-shaped ring is abutted against the end socket, the inside and the outside of the O-shaped ring are isolated into two cavities, gas does not circulate, the problem that the stress on two sides of the sealing block component is uneven easily exists is solved, when the movable core is switched into an energizing mode, the movable core needs to move downwards to be attracted with the end socket, and the acting force on the lower side of the sealing block component in the vertical direction is larger, and therefore larger electromagnetic force is required to drive the valve. [ Invention ] The invention aims to provide an air spring stiffness valve and a vehicle system thereof, which can relatively ensure that the stress on two sides of a sealing plug is relatively balanced in a valve opening state on the basis of realizing buffering, and can drive a valve to be closed by relatively using small electromagnetic force when the valve is electrified. The invention provides an empty spring rigidity valve which comprises a valve seat, a movable core assembly, a sealing head part, a sealing plug and a buffer part, wherein the valve seat is provided with a valve opening, the movable core assembly comprises a movable core and a mandrel, one end part of the mandrel is fixedly connected with the movable core, the other end part of the mandrel is connected with the sealing plug, and the sealing plug can be abutted against or away from the valve opening; One of the sealing plug and the sealing head component is provided with a groove part, the buffer piece comprises a body part and an abutting part protruding from the body part, a gap is arranged between two adjacent abutting parts, and the body part is at least partially limited in the groove part and is tightly matched with the groove part; When the sealing plug is in a fully opened state, the sealing plug is far away from the valve opening part, the abutting part can elastically deform and abuts against the end face of the other one of the sealing plug and the sealing head part, the cavity on one side of the buffer part is communicated with the cavity on the other side of the buffer part through the notch, the invention ensures that the buffer part is provided with a body part and abutting parts by improving the design of the air spring stiffness valve structure, a notch is arranged between the two adjacent abutting parts, when the sealing plug is fully opened, the abutting part can elastically deform to abut against the end face of the sealing plug or the sealing head part to realize buffering, on the basis, the cavity on one side of the buffering part is communicated with the cavity on the other side of the buffering part through the notch, at the moment, the stress above the sealing plug is balanced with the stress below the valve opening part, the stress on two sides of the sealing plug can be relatively ensured to be relatively balanced, and when the sealing plug is electrified, the valve opening part can be closed by using smaller electromagnetic force to drive the sealing plug; the invention also provides a hollow spring rigidity valve, which comprises a valve seat, a movable core assembly, a sealing head part, a sealing plug, a first buffer part and a second buffer part, wherein the valve seat is provided with a valve opening, the movable core assembly comprises a movable core and a core shaft, one end part of the core shaft is fixedly connected with the movable core, the other end part of the core shaft is connected with the sealing plug, and the sealing plug can be abutted against or separated from the valve opening; The sealing plug is provided with a first groove part, the sealing head part is provided with a second groove part, the first buffer part and the second buffer part both comprise a body part and an abutting part protruding from the body part, a gap is arranged between two adjacent abutting parts, the body part of the first buffer part is at least partially limited in the first groove part and is tightly matched with the first groove part, and the body part of the second buffer part is at least partially limited in the second groo