CN211715643U

CN211715643U - Adjusting valve for shock absorber

Info

Publication number: CN211715643U
Application number: CN202020238688.8U
Authority: CN
Inventors: 朱云彰
Original assignee: Tangshan Baoliang Automobile Fitting Co ltd
Current assignee: Tangshan Baoliang Automobile Fitting Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-10-20
Anticipated expiration: 2030-03-02

Abstract

The utility model relates to a regulating valve for a shock absorber, which comprises a shell, a valve seat, a piston, a valve plate group, a pressure plate, an adjusting rod, a valve seat and a needle valve; the piston, the valve disc group, the pressure plate, the spring and the spring seat are arranged in the shell and are sequentially sleeved on the adjusting rod, the spring is supported by the spring seat, the other end of the spring is pressed to the end face of the pressure plate, the circumferential direction of the spring seat and the circumferential direction of the valve seat are relatively fixed to limit the circumferential direction rotation of the spring seat, and the spring seat is translated to compress the spring so as to drive the pressure plate to compress the valve disc group to control the flow; the inside of adjusting lever is provided with the shoulder hole, the needle valve is packed into the shoulder hole to constitute the fluid passageway with the shoulder hole cooperation, adjust the clearance of the awl section of the pyramis of the first end of needle valve and corresponding shoulder hole, with the flow of adjusting this department, form the two regulation structures of damping.

Description

Adjusting valve for shock absorber

Technical Field

The utility model relates to a bumper shock absorber field, more specifically, the utility model relates to a regulating valve for bumper shock absorber.

Background

The shock absorber has a great influence on the handling characteristics of the vehicle during the transition. These transients include braking, over-bending, transition from steering to acceleration and acceleration, which are known in the art damping adjustment devices, are usually of single-channel construction, which are inserted into the socket of the adjustment member by means of a damping adjustment wrench, may hit parts of the vehicle body, even requiring direct twisting of the adjustment member by hand, and are therefore particularly laborious.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a regulating valve for bumper shock absorber, it has the passageway of two way regulations, disposes two handles simultaneously, realizes two regulations. The utility model discloses an adjusting valve for bumper shock absorber, its exit that can be used for the heat dissipation jar carries out the fluid backward flow volume after cooling and adjusts, the utility model discloses also can be used for the regulation of the flow in the exit of nitrogen gas jar. The utility model discloses a flow control is carried out in the pyramis cooperation of the inside pore of adjusting lever and the first end of needle valve, flows out from the oilhole of crossing on the valve seat lateral wall, the utility model discloses also can be through piston and the cooperation of compression valve disk group, flow control is carried out to the compressive capacity of control valve disk group to the fluid flow that flows out in the oilhole of crossing on the control through the valve seat lateral wall. The utility model discloses can be used for various needs to carry out the occasion of two regulations to oil circuit and/or gas circuit.

The technical scheme of the utility model as follows:

a regulating valve for a shock absorber comprises a shell, a piston, a valve disc group, a pressure plate, an adjusting rod, a valve seat and a needle valve; the piston, the valve disc group, the pressure plate, the spring and the spring seat are arranged in the shell and are sequentially sleeved on the adjusting rod, the spring is supported by the spring seat, the other end of the spring is pressed to the end face of the pressure plate, the circumferential direction of the spring seat and the circumferential direction of the valve seat are relatively fixed to limit the circumferential direction rotation of the spring seat, and the spring seat is translated to compress the spring so as to drive the pressure plate to compress the valve disc group to control the flow; the inside of adjusting lever is provided with the shoulder hole, the needle valve is packed into the shoulder hole to constitute the fluid passageway with the shoulder hole cooperation, adjust the clearance of the awl section of the pyramis of the first end of needle valve and corresponding shoulder hole, with the flow of adjusting this department, form the two regulation structures of damping.

Preferably, the spring seat is circumferentially provided with a first screw hole arranged, the first screw hole is matched with a corresponding second hole of the valve seat, and the rotation of the spring seat relative to the valve seat is limited through a first screw.

Preferably, the set of valves is disposed inside the piston.

Preferably, the valve plate group is placed into the piston from the end part of the piston close to the spring, the valve plate group is pressed tightly by the pressure plate, and flow regulation is performed through gaps among valve plates in the valve plate group.

Preferably, a second hole corresponding to the first screw hole in the valve seat is an elongated hole, so that the spring seat can have a space in the second hole to move axially along the adjusting rod.

Preferably, a first end of the spring presses against the pressure plate, the other end of the pressure plate being in contact with the valve plate set.

Preferably, the set of valve discs is a compressed set of valve discs.

Preferably, a shoulder nut is arranged at the first end of the piston, and a wavy elastic sheet and a rebound valve sheet are arranged between the shoulder nut and the first end of the piston.

Preferably, a first groove is arranged in the piston, a first sealing element is arranged in the first groove, and the first sealing element realizes sealing between the inner side wall of the piston and an adjusting rod positioned in the piston.

Preferably, the side wall of the valve seat is provided with second oil passing holes which are uniformly arranged in the circumferential direction.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses an adjusting valve for bumper shock absorber, its exit that can be used for the heat dissipation jar carries out the fluid backward flow volume after cooling and adjusts, the utility model discloses also can be used for the regulation of the flow in the exit of nitrogen gas jar. The utility model discloses a flow control is carried out in the pyramis cooperation of the inside pore of adjusting lever and the first end of needle valve, flows out from the oilhole of crossing on the valve seat lateral wall, the utility model discloses also can be through piston and the cooperation of compression valve disk group, flow control is carried out to the compressive capacity of control valve disk group to the fluid flow that flows out in the oilhole of crossing on the control through the valve seat lateral wall. The utility model discloses can be used for various needs to carry out the occasion of two regulations to oil circuit and/or gas circuit.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a trim valve for a shock absorber according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

According to the utility model discloses an adjusting valve for bumper shock absorber, it includes shell 1, disk seat 2, piston 3, valve block group 4, pressure disk 5, spring 6, spring holder 7, adjusting lever 8, locking closure 9, needle valve 10, first handle 11 and second handle 12. An oil inlet hole which is vertical to the axis of the piston is arranged on the outer part of the piston. The first handle is configured to adjust the oil passing amount at the position of the compression valve plate group through the translation action of the spring seat so as to adjust the oil passing amount of the first oil passage, and the second handle is fixedly connected with the needle valve through a fastener and drives the needle valve to act so as to adjust the oil passing amount of the oil passage in the rod.

Piston 3, valve block group 4, pressure disk 5, spring 6 and spring holder 7 overlap in proper order to on the adjusting lever, the second end of spring relies on the spring holder to support, and the circumference of spring holder is provided with the first screw hole of arranging, first screw hole with the corresponding second hole cooperation of disk seat makes it fixed for the disk seat through first screw fixed spring holder. The valve plate group is arranged in the piston, preferably, the valve plate group is placed in the piston from the second end of the piston, namely the end part of the piston close to the spring, the valve plate group is pressed tightly by the pressure plate, and flow regulation is carried out through gaps among the valve plates in the valve plate group.

Preferably, the first screw is a socket head cap screw.

Preferably, a first end of the spring presses the pressure plate, and the other end of the pressure plate contacts with the valve plate group, and preferably, the valve plate group is a compression valve plate group.

The first end of piston is provided with takes shoulder nut take shoulder nut with set up wave shell fragment and resilience valve block between the first end of piston, wherein the resilience valve block is pressed close to the first end of piston, the wave shell fragment sets up take shoulder nut with between the resilience valve block, surround between the outside of resilience valve block and the wave shell fragment and form non-contact space. A first groove is formed in the piston, and a first sealing piece is arranged in the first groove. The first seal is configured for sealing between an inner sidewall of the piston and an adjustment rod located inside the piston. The center hole of the shoulder nut and the inner hole of the adjusting rod form an oil passage together.

Preferably, the outer ring of the piston is provided with a third groove, and a second sealing element is arranged in the third groove and is used for sealing between the outer side of the piston and the shell.

Preferably, the outer side wall of the piston is of a stepped structure, the diameter of the outer wall of the first section of the piston is larger than that of the outer wall of the second section of the piston, and a step surface, namely a first shoulder, is formed at the joint of the first section of the outer side wall of the piston and the second section of the outer side wall of the piston. Preferably, the first end of the valve seat snaps to the step face, i.e. to the first shoulder. Wherein the third groove is provided at a first section of an outer side wall of the piston.

Preferably, the spring seat includes a fixed portion and a guide portion, the spring is fitted to the guide portion of the spring seat, and the first screw hole is provided at an outer side wall of the fixed portion of the spring seat. Preferably, an end of the pressure plate contacting the first end of the spring is provided with a fourth groove, and preferably, the first end of the spring is caught to the fourth groove.

Preferably, the adjusting rod is of a stepped structure, a shoulder nut is mounted to the first section of the adjusting rod, and the wave-shaped elastic sheet and the rebound valve sheet are also located at the first section of the adjusting rod.

Preferably, the piston, the set of valves and the pressure plate are mounted to a second section of the adjuster rod.

Preferably, the diameter of the first section of the adjustment rod is smaller than the diameter of the second section of the adjustment rod.

Preferably, the spring seat is mounted to the third section of the adjustment rod.

Preferably, the diameter of the second section of the adjustment rod is smaller than the diameter of the third section of the adjustment rod.

Preferably, a third hole is provided at the center of the piston so that the piston is fitted to the adjusting rod through the third hole.

Preferably, the first end surface of the piston is provided with first oil passing holes distributed along the axial direction, and the center of a circumferential array formed by the first oil passing holes is the center of the first end surface of the piston.

Preferably, a fourth hole is formed in the center of the wave-shaped elastic sheet, a fifth hole is formed in the center of the rebound valve plate, the wave-shaped elastic sheet is sleeved on the adjusting rod through the fourth hole, and the rebound valve plate is sleeved on the adjusting rod through the fifth hole.

The center of the shoulder nut is provided with a sixth hole, the sixth hole is a threaded hole, the sixth hole is an internal threaded hole, and the sixth hole is matched with the external thread of the first end part of the adjusting rod to be fixed.

Preferably, a center of the first section of the adjusting rod, a center of the second section of the adjusting rod and a center of the third section of the adjusting rod are provided with communicated seventh holes. The aperture of the outlet section of the seventh hole is reduced, for example, to a first preset size, by a first transition taper hole section, and then expanded, for example, to a second preset size, by a second transition taper hole section, which extends to the fourth section of the adjustment, the second transition taper hole section communicating with the third oil passing hole.

The needle valve is followed insert in the hole of the second end of adjusting lever the adjusting lever, the pyramis and the cooperation of second transition taper hole section of the first end of needle valve, through second transition taper section with the oil passing amount of this department of clearance adjustment between the lateral wall of the pyramis of needle valve. The oil flows into the spring seat through the third oil passage hole, for example, into the second end of the spring seat, and a fourth oil passage hole is provided at the second end of the spring seat, through which the oil flows into a space between the valve seat and the outside of the second end of the spring seat and flows out of the control valve through the second oil passage hole of the valve seat.

Preferably, a first end of the valve seat is pressed against a shoulder of the piston and a second end of the valve seat engages a locking cap.

Preferably, the center of the pressure plate is provided with a hole through which the pressure plate is sleeved to the adjusting rod, the center of the compression valve plate group is also provided with a hole through which the compression valve plate group is sleeved to the adjusting rod, and preferably, the center of the spring seat is provided with a hole through which the spring seat is sleeved to a corresponding part of the other adjusting rod.

Preferably, the fourth section of the adjusting lever is sized with third oil passing holes uniformly arranged in a circumferential direction thereof. In the working process, the gap between the outlet section of the seventh hole and the first end of the needle valve is controlled through the needle valve, so that the oil passing amount flowing out of the third oil passing hole can pass through.

Preferably, the first section of needle valve is the taper section, the second section of needle valve with set up toper transition portion between the third section of needle valve, the diameter of the second section of needle valve is less than the diameter of needle valve third section.

Preferably, an oil containing space is formed between the second section of the needle valve and the inner bore section of the adjusting rod corresponding to the second section of the needle valve. Preferably, the third section of the needle valve is provided with two-stage sealing grooves which are arranged in parallel, and needle valve sealing elements are arranged in the two sealing grooves and are configured to form sealing between the needle valve and the inner wall of the corresponding adjusting rod, so that oil leakage is prevented.

The fifth section of adjusting lever cooperates with the disk seat, is provided with the spring holding tank of evenly arranging along circumference in the inside of disk seat, is provided with the spring in the spring holding tank, the first end of spring is provided with the ball, and the spring second end is located the tank bottom of spring holding tank. And a groove matched with the ball is arranged on the second surface of the valve seat, when the adjusting valve works, the ball is positioned in the groove on the adjusting rod and the spring adjusting groove, and the ball compresses the spring.

Preferably, a secondary seal is arranged at a contact position of the outer side wall of the adjusting rod and the inner side wall of the valve seat, specifically, a secondary seal accommodating groove is arranged at a corresponding position of the outer side wall of the adjusting rod, and a seal is arranged in each seal accommodating groove to prevent oil leakage between the adjusting rod and the valve seat.

Preferably, a valve seat sealing groove is formed in the outer side wall of the valve seat, and a sealing member is arranged in the valve seat sealing groove and configured to seal between the outer surface of the valve seat and the housing.

Preferably, the second end of the valve seat is provided with a snap spring connected with the housing. Preferably, the clamp spring is clamped into a groove on the inner side wall of the shell.

And a locking cover is arranged at the second end of the valve seat and is fixed with the valve seat through a fastening piece.

Preferably, the center of the locking cap is provided with a center hole so as to be fitted to an outer sidewall of the adjusting lever.

The other end of the locking cover is connected with a first handle, specifically, the first handle is a big handle which is configured for pressure adjustment, the first handle can rotate, a sealing ring is arranged between the first handle and the locking cover, a protrusion is arranged at the end part of the sealing ring, and the protrusion is arranged in an annular groove arranged on the end surface of the first handle so as to avoid oil leakage.

Preferably, a second handle is installed at the second end of the first handle, the second handle is a small handle and is configured for flow regulation, and a sealing ring installation groove is formed in the inner side wall of the second handle at the joint of the first handle, and a sealing ring is arranged in the sealing ring installation groove so as to realize sealing of the joint of the second handle and the first handle.

The second end of the first handle is provided with a spring accommodating groove which is configured for a spring, the spring is pressed by a ball, and one part of the ball is positioned in the ball groove arranged on the first end surface of the second handle.

The second handle is connected to the second end of the adjustment rod by a fastener.

Specifically, the utility model discloses can be used for the exit of heat dissipation jar, the fluid backward flow volume after cooling is adjusted, the utility model discloses also can be used for the regulation of the flow in the exit of nitrogen gas jar. The utility model discloses a flow control is carried out in the pyramis cooperation of the inside pore of adjusting lever and the first end of needle valve, flows out from the oilhole of crossing on the valve seat lateral wall, the utility model discloses also can be through piston and the cooperation of compression valve disk group, flow control is carried out to the compressive capacity of control valve disk group to the fluid flow that flows out in the oilhole of crossing on the control through the valve seat lateral wall. The utility model discloses can be used for various needs to carry out the occasion of two regulations to oil circuit and/or gas circuit.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. Those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "at least three" means two or more unless otherwise specified.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjusting valve for a shock absorber is characterized by comprising a shell, a piston, a valve disc group, a pressure plate, an adjusting rod, a valve seat and a needle valve; the piston, the valve disc group, the pressure plate, the spring and the spring seat are arranged in the shell and are sequentially sleeved on the adjusting rod, the spring is supported by the spring seat, the other end of the spring is pressed to the end face of the pressure plate, the circumferential direction of the spring seat and the circumferential direction of the valve seat are relatively fixed to limit the circumferential direction rotation of the spring seat, and the spring seat is translated to compress the spring so as to drive the pressure plate to compress the valve disc group to control the flow; the inside of adjusting lever is provided with the shoulder hole, the needle valve is packed into the shoulder hole to constitute the fluid passageway with the shoulder hole cooperation, adjust the clearance of the awl section of the pyramis of the first end of needle valve and corresponding shoulder hole, with the flow of adjusting this department, form the two regulation structures of damping.

2. The trim valve for a shock absorber according to claim 1, wherein the spring seat is circumferentially provided with a first screw hole arranged to engage a corresponding second hole of the valve seat, the rotation of the spring seat relative to the valve seat being limited by a first screw.

3. The trim valve for a shock absorber of claim 2, wherein the set of valves is disposed within the interior of the piston.

4. The trim valve for a shock absorber according to claim 3, wherein the valve plate set is inserted into the piston from the end of the piston near the spring and pressed against the valve plate set by a pressure plate, and flow rate adjustment is performed by a gap between the valve plates in the valve plate set.

5. The trim valve for a shock absorber of claim 4 wherein the second bore in the valve seat corresponding to the first screw bore is an elongated bore such that the spring seat has room in the second bore for axial movement along the adjustment stem.

6. The trim valve for a shock absorber of claim 5, wherein a first end of the spring presses against the pressure plate and the other end of the pressure plate contacts the valve plate stack.

7. The trim valve for a shock absorber of claim 6, wherein the set of valves is a compression set of valves.

8. The trim valve for a shock absorber of claim 7, wherein the first end of the piston is provided with a shoulder nut and a wave spring plate and a rebound valve plate are disposed between the shoulder nut and the first end of the piston.

9. The trim valve for a shock absorber of claim 8, wherein the interior of the piston defines a first groove, and wherein a first seal is disposed in the first groove, the first seal sealing between an inner sidewall of the piston and an adjuster rod located within the interior of the piston.

10. The trim valve for a shock absorber according to claim 9, wherein the side wall of the valve seat is provided with second oil passing holes uniformly arranged in a circumferential direction.