CN212479992U

CN212479992U - Damping valve

Info

Publication number: CN212479992U
Application number: CN202020833300.9U
Authority: CN
Inventors: 黄小伟
Original assignee: Changzhou Puchen Electronic Co ltd
Current assignee: Changzhou Puchen Electronic Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-02-05
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a damping valve, which comprises a housin and a valve body, install electromagnet assembly in the casing, be equipped with first hydraulic fluid port and second hydraulic fluid port on the valve body, fixed mounting has the disk seat in the valve body, form the oily passageway of mistake with second hydraulic fluid port intercommunication between disk seat and the valve body, set up the oilhole of crossing with the oily passageway intercommunication on the periphery of disk seat, the inside activity of disk seat is provided with the spring holder, reciprocating motion makes first hydraulic fluid port and cross intercommunication or disconnection between the oilhole in the disk seat of spring holder, swing joint has the case in the valve body, be connected with the pull rod between case and the spring holder, have in the case with cross the first balancing hole of oily passageway intercommunication, have in the spring holder with the second balancing hole of first hydraulic fluid port intercommunication, the electro-magnet circular telegram back, the case moves to the right, it makes first hydraulic fluid port to drive the spring. In this way, the utility model discloses damping valve, damping valve are in balanced state often at the inside oil pressure in the course of the work, simple structure, and drive power is little, and control flow's change is big.

Description

Damping valve

Technical Field

The utility model relates to an automobile and industrial equipment field especially relate to a damping valve.

Background

Some shock absorbers used for vehicle suspensions include a shock absorber with a damping valve that can vary a damping force. The existing damping valve in the application of the shock absorber can cause a small damping force adjusting range due to too small flow. Cannot be applied to a large damping force shock absorber.

Disclosure of Invention

The utility model discloses the main technical problem who solves provides a damping valve, can ensure that the large-traffic damping force of damping valve is adjusted in the application of bumper shock absorber. The damper can be applied to a large damping force damper.

In order to solve the technical problem, the utility model discloses a technical scheme be: the damping valve comprises a shell and a valve body arranged on the shell, wherein an electromagnet assembly is arranged in the shell, a first oil port and a second oil port are formed in the valve body, a valve seat is fixedly arranged in the valve body, an oil passing channel communicated with the second oil port is formed between the valve seat and the valve body, an oil passing hole communicated with the oil passing channel is formed in the periphery of the valve seat, a spring seat is movably arranged in the valve seat, the spring seat reciprocates in the valve seat to enable the first oil port and the oil passing hole to be communicated or disconnected, a valve core located between the electromagnet assembly and the valve seat is movably connected in the valve body, a pull rod is connected between the valve core and the spring seat, the electromagnet assembly drives the valve core to drive the pull rod to enable the spring seat to reciprocate, a first balance hole communicated with the oil passing channel is formed in the valve core, and the spring seat moves to open the, The oil passing channel is communicated with the first balance hole, oil pressure on the left side and the right side of the valve core is the same through the first balance hole, a second balance hole communicated with the first oil port is formed in the spring seat, and the oil pressure on the left side and the right side of the spring seat is the same through the second balance hole.

In a preferred embodiment of the present invention, the valve seat comprises a seat cover, a seat body and a base which are connected in sequence, the seat cover is closely attached to the inner side of the valve body and sealed therebetween, gaps are formed between the seat body and the inner walls of the valve body and between the seat body and the inner walls of the base, and the oil passing holes are symmetrically formed in the left side and the right side of the seat body.

In a preferred embodiment of the present invention, the valve body has a step structure inside, the step structure is located outside the base, and the step structure has a guide opening in an inclined shape.

In a preferred embodiment of the present invention, a locking ring is sleeved on the inner side of the seat cover, and an oil through hole is formed in the locking ring and connects the first oil port with the second balance hole.

In a preferred embodiment of the present invention, the spring seat is movably disposed in the seat, the spring seat has a mounting cavity therein, the mounting cavity is connected with a first elastic member, and the other end of the first elastic member is connected to the locking ring.

In a preferred embodiment of the present invention, a second elastic member is connected between the electromagnet assembly and the right end of the valve core.

In a preferred embodiment of the present invention, the electromagnet assembly is provided with a guide sleeve sleeved outside the second elastic member.

In a preferred embodiment of the present invention, the first balance hole is a through hole formed through the valve element, and the second balance hole is a through hole formed through the spring seat.

In a preferred embodiment of the present invention, the left end of the valve core has a mounting groove, the right end of the pull rod is connected in the mounting groove in a matching manner, and the left end passes through the base and is connected with the right end of the spring seat.

In a preferred embodiment of the present invention, the outside of the valve body is sleeved with an O-ring, and the electromagnet assembly is mounted on the housing through a pressing plate.

The utility model has the advantages that: the utility model discloses the damping valve can ensure that the damping valve is balanced at the inside oil pressure of working process, can not cause the damage because of the oil pressure is too high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

FIG. 1 is a schematic structural view of a preferred embodiment of the damping valve of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

the parts in the drawings are numbered as follows: 1. the valve comprises a shell, 2, a valve body, 201, a step structure, 202, a guide port, 21, a first oil port, 22, a second oil port, 23, a valve seat, 231, an oil passing hole, 232, a seat cover, 233, a seat body, 234, a base, 235, a locking ring, 236, an oil passing hole, 24, an oil passing channel, 25, a spring seat, 251, a second balance hole, 252, a mounting cavity, 253, a first elastic element, 26, a valve core, 261, a first balance hole, 262, a second elastic element, 263, a guide sleeve, 264, a mounting groove, 27, a pull rod, 3, an electromagnet assembly, 4, an O-shaped ring, 5 and a pressure plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 2, a damping valve includes a housing 1 and a valve body 2 disposed on the housing 1, an electromagnet assembly 3 is disposed in the housing 1, a first oil port 21 and a second oil port 22 are disposed on the valve body 1, a valve seat 23 is fixedly disposed in the valve body 2, an oil passage 24 communicated with the second oil port 22 is formed between the valve seat 23 and the valve body 2, an oil passage 231 communicated with the oil passage 24 is disposed on a periphery of the valve seat 23, a spring seat 25 is movably disposed in the valve seat 23, the spring seat 25 reciprocates in an inner cavity of the valve seat 23 to connect or disconnect the first oil port 21 and the oil passage 231, a valve core 26 disposed between the electromagnet assembly 3 and the valve seat 23 is movably connected in the valve body 2, a pull rod 27 is connected between the valve core 26 and the spring seat 25, the electromagnet assembly drives the valve core 26 to drive the pull rod 27 to reciprocate the spring seat 25, a first balance hole 261 communicated with the oil passage 24 is disposed in, the spring seat 25 has a second balance hole 251 therein communicating with the first port 21, and the spring seat 25 moves to open the oil passing hole to communicate the first port 21, the oil passing passage 24, and the first balance hole 261. The first balance hole 261 is a through hole formed through the spool 26, and the second balance hole 251 is a through hole formed through the spring seat 25. The first balance hole 261 ensures that the oil pressures at the left and right ends of the valve core are equal, the second balance hole 251 ensures that the oil pressures at the left and right ends of the spring seat are equal, so that the damping valve is not influenced by the oil pressure during operation, and the spring seat 25 moves only by the acting force of the solenoid valve assembly 3.

In addition, the valve seat 23 includes a seat cover 232, a seat body 233 and a base 234 connected in sequence, the seat cover 232 is closely attached to the inner side of the valve body 2 and sealed therebetween, gaps are provided between the seat body 233 and the base 234 and the inner wall of the valve body 2, and the oil passing holes 231 are symmetrically formed at the left and right sides of the seat body 233.

The valve body 2 has a stepped structure 201 inside, the stepped structure 201 is located outside the base 234, and the stepped structure 201 has a tapered guide port 202.

In addition, a locking ring 235 is sleeved on the inner side of the seat cover 232, an oil through hole 236 is formed in the locking ring 235, and the first oil port 21 is communicated with the second balance hole 251 through the oil through hole 236.

In addition, the spring seat 25 is movably arranged in the seat body 233, a mounting cavity 252 is formed in the spring seat 25, a first elastic piece 253 is connected in the mounting cavity 252, and the other end of the first elastic piece 253 is connected to the locking ring 235. A second elastic member 262 is connected between the electromagnet assembly 3 and the right end of the valve core 26, the second elastic member 262 provides a pushing force to ensure that the spring seat 25 closes the oil passing hole in the closed state of the electromagnet assembly 3, and preferably, the first elastic member 253 and the second elastic member 262 are springs.

In addition, a guide sleeve 263 sleeved outside the second elastic member 262 is arranged on the electromagnet assembly 3.

In addition, the left end of the valve core 26 is provided with a mounting groove 264, the right end of the pull rod 27 is matched and connected in the mounting groove 264, and the left end passes through the inside of the base 234 and is connected with the right end of the spring seat 25.

In addition, the outside cover of valve body 2 is equipped with O shape circle 4, and electromagnet assembly 3 passes through clamp plate 5 to be installed on casing 1.

The utility model discloses the concrete theory of operation of damping valve as follows: in an initial state, the electromagnet assembly 3 is not electrified, the spring seat 25 seals the oil passing hole 231 under the action of the second elastic element 262, when the electromagnet assembly 3 is electrified, the electromagnet assembly 3 drives the valve core 26 and the pull rod 27 to enable the spring seat 25 to start moving rightwards, at the moment, the first oil port 21 is filled with oil, the oil fills the second balance hole 251 and enters the oil passing channel 24 through the oil hole 231, one part of the oil passing through the oil passing channel 24 enters the first balance hole 261 of the valve core 26, and the other part of the oil flows out through the second oil port 22. Similarly, the oil can be discharged from the first oil port 21 through the inlet of the second oil port 22.

Be different from prior art, the utility model discloses the damping valve can ensure that the damping valve is balanced at the inside oil pressure of working process, adjusts big damping bumper shock absorber damping under the condition of miniwatt.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims

1. The damping valve is characterized in that a valve seat is fixedly mounted in the valve body, an oil passing channel communicated with the second oil port is formed between the valve seat and the valve body, an oil passing hole communicated with the oil passing channel is formed in the periphery of the valve seat, a spring seat is movably arranged in the valve seat, the spring seat reciprocates in the valve seat to enable the first oil port and the oil passing hole to be communicated or disconnected, a valve core located between the electromagnet assembly and the valve seat is movably connected in the valve body, a pull rod is connected between the valve core and the spring seat, the electromagnet assembly drives the valve core to drive the pull rod to enable the spring seat to reciprocate, a first balance hole communicated with the oil passing channel is formed in the valve core, and the spring seat moves to open the oil passing hole to enable the first oil port and the second oil port to be opened, The oil passing channel is communicated with the first balance hole, oil pressure on the left side and the right side of the valve core is the same through the first balance hole, a second balance hole communicated with the first oil port is formed in the spring seat, and the oil pressure on the left side and the right side of the spring seat is the same through the second balance hole.

2. The damping valve according to claim 1, wherein the valve seat comprises a seat cover, a seat body and a base which are connected in sequence, the seat cover is closely attached to the inner side of the valve body and is sealed between the seat cover and the valve body, gaps are formed between the seat body and the inner wall of the valve body and between the base and the inner wall of the valve body, and the oil passing holes are symmetrically formed in the outer side of the seat body.

3. The damper valve according to claim 2, wherein the valve body has a stepped structure in an inside thereof, the stepped structure being located outside the seat, the stepped structure having a guide port formed in a slanted shape.

4. The damping valve as claimed in claim 3, wherein a locking ring is sleeved on an inner side of the seat cover, and an oil through hole is opened in the locking ring and communicates the first oil port with the second balance hole.

5. The damping valve according to claim 4, wherein the spring seat is movably disposed in the seat body, a mounting cavity is disposed in the spring seat, a first elastic member is connected in the mounting cavity, and the other end of the first elastic member is connected to the locking ring.

6. The damper valve according to claim 5, wherein a second elastic member is connected between the solenoid assembly and the right end of the spool.

7. The damper valve according to claim 6, wherein the electromagnet assembly is provided with a guide sleeve which is sleeved outside the second elastic member.

8. The damper valve according to any one of claims 1 to 7, wherein the first balance hole is a through hole formed through the spool, and the second balance hole is a through hole formed through the spring seat.

9. The damper valve according to claim 8, wherein the left end of the valve core is provided with a mounting groove, the right end of the pull rod is connected in the mounting groove in a matching manner, and the left end of the pull rod penetrates through the base and is connected with the right end of the spring seat.

10. The damper valve according to claim 8, wherein an O-shaped ring is sleeved on the outer side of the valve body, and the electromagnet assembly is mounted on the shell through a pressure plate.