CN111043224B - Bottom valve of oil pressure shock absorber - Google Patents
Bottom valve of oil pressure shock absorber Download PDFInfo
- Publication number
- CN111043224B CN111043224B CN201911317776.5A CN201911317776A CN111043224B CN 111043224 B CN111043224 B CN 111043224B CN 201911317776 A CN201911317776 A CN 201911317776A CN 111043224 B CN111043224 B CN 111043224B
- Authority
- CN
- China
- Prior art keywords
- valve
- bottom valve
- valve body
- hole
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
- F16F9/3488—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by features intended to affect valve bias or pre-stress
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3271—Assembly or repair
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3285—Details for filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/446—Adjustment of valve bias or pre-stress
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides a bottom valve of an oil pressure shock absorber. Comprises a bottom valve body, a valve plate, a spring, a valve plate blocking cover, a bottom valve mandrel and a bottom valve system; the bottom valve body comprises a first flow through hole, a second flow through hole and a bottom valve mandrel mounting hole; a filtering device is arranged between the end surface of the first end of the bottom valve body and the end surface of the first end of the valve block cover; a through hole corresponding to the first flow through hole is formed in the first end of the valve block cover; the valve plate is sleeved at the first end of the valve plate blocking cover and covers the second through hole of the bottom valve body, and a spring is arranged between the valve plate and the second end of the valve plate blocking cover; the bottom valve system is arranged at the second end of the bottom valve body and is attached to the end part of the first through hole; the valve block cover is sequentially connected with the bottom valve body and the bottom valve system through a bottom valve mandrel. The invention can realize the one-way flow of oil at the bottom valve and filter particulate impurities in the oil, and prevent the impurities from entering the bottom valve system to influence the damping characteristic of the oil pressure shock absorber.
Description
Technical Field
The invention relates to the technical field of oil pressure vibration reduction, in particular to a bottom valve of an oil pressure vibration reducer.
Background
The oil pressure shock absorber is used as an important part of various vehicles, and the damping characteristic of the oil pressure shock absorber directly influences the safety, the stability and the comfort of the vehicle operation. The bottom valve of the oil pressure shock absorber is an important composition structure for ensuring the damping characteristic of the oil pressure shock absorber, and the stability and the reliability of the performance of the bottom valve directly influence the reliability of the shock absorber.
In the use process of the oil pressure shock absorber, on one hand, particulate matters in a working cavity of the oil pressure shock absorber enter a bottom valve system of a bottom valve along with oil, so that the bottom valve is leaked, and the damping characteristic of the oil pressure shock absorber is influenced; on the other hand, when the oil circulation holes of the components in the bottom valve are not aligned, the oil circulation is not smooth, and the damping characteristic of the oil pressure shock absorber is influenced.
In the production process, the assembly and disassembly of the bottom valve are complex; the factors of poor positioning and centering effects of the bottom valve and the bottom valve mounting seat of the oil pressure vibration absorber cause the damping characteristic of the oil pressure vibration absorber to be unqualified.
In view of the above, there is a need for a base valve of an oil pressure damper to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a bottom valve of an oil pressure shock absorber, which aims to solve the problems of one-way circulation and filtration of oil liquid in the oil pressure shock absorber at the bottom valve.
In order to achieve the aim, the invention provides a bottom valve of an oil pressure shock absorber, which comprises a bottom valve body, a valve plate, a spring, a valve plate blocking cover, a bottom valve mandrel and a bottom valve system, wherein the valve plate blocking cover is arranged on the bottom valve body;
the bottom valve body comprises a first flow through hole and a second flow through hole which penetrate through the bottom valve body, and a bottom valve mandrel mounting hole for mounting a bottom valve mandrel;
a filtering device is arranged between the end face of the first end of the bottom valve body and the end face of the first end of the valve block cover and is used for filtering impurities in oil; a through hole corresponding to the first through hole is formed in the first end of the valve block cover and is used for enabling oil to flow to the bottom valve body through the valve block cover;
the valve plate is sleeved on the first end of the valve plate blocking cover, is in contact with the end face of the first end of the bottom valve body and covers the second through hole of the bottom valve body, and a spring is arranged between the valve plate and the second end of the valve plate blocking cover and used for realizing the opening and closing of the contact face of the valve plate and the end face of the first end of the bottom valve body;
the bottom valve system is arranged at the second end of the bottom valve body and is attached to the end part of the first through hole; the valve block cover is sequentially connected with the bottom valve body and the bottom valve system through a bottom valve mandrel.
Preferably, the first end of the valve plate blocking cover is provided with an annular oil passing groove, and the annular oil passing groove is communicated with the through hole and the first flow through hole to enable oil to smoothly flow into the first flow through hole from the through hole.
Preferably, the bottom valve system comprises a prepressing adjusting gasket and a compression valve plate group; the pre-compression adjusting gasket is arranged between the second end of the bottom valve body and the compression valve plate group and used for adjusting the pre-compression amount of the compression valve plate group.
Preferably, the bottom valve system further comprises a compression valve plate blocking cover, and the compression valve plate blocking cover is installed at one end, far away from the bottom valve body, of the compression valve plate group and used for limiting the compression valve plate group.
Preferably, the compression valve plate set comprises at least one elastic valve plate, and the elastic valve plate can be compressed and deformed under oil pressure to enable oil to flow out of the first through hole.
Preferably, the second end of the bottom valve body is provided with a positioning pin for positioning the bottom valve body and the bottom valve mounting seat in the oil pressure shock absorber.
Preferably, the side surface of the bottom valve body is provided with a conical surface for realizing the coaxial positioning of the bottom valve body and a bottom valve mounting seat in the oil pressure shock absorber.
Preferably, the spring is a pagoda-shaped spring and is used for limiting the valve plate by the valve plate blocking cover.
Preferably, the base valve spindle includes a threaded rod and nut for enabling adjustment of the amount of precompression for the spring and base valve train.
Preferably, the filtering device comprises at least one layer of filtering net for filtering impurities in oil entering the bottom valve system.
The technical scheme of the invention has the following beneficial effects:
(1) according to the invention, through holes corresponding to the first through holes of the bottom valve body are arranged on the valve block cover, the second end of the bottom valve body is provided with the bottom valve system, and the oil flows from the first end of the bottom valve body to the second end of the bottom valve body through the opening and closing of the bottom valve system; by arranging the spring and the valve plate, the valve plate covers the second through hole of the bottom valve body, and the oil flows from the second end of the bottom valve body to the first end of the bottom valve body by opening the valve plate; through set up filter equipment between valve block fender lid and bottom valve body first end, filter equipment includes at least one deck filter screen, can filter the particulate matter impurity in the fluid, prevents that impurity from getting into the bottom valve system and influencing oil damper's damping characteristic.
(2) According to the invention, the annular oil passing groove is arranged at the contact end of the valve block cover and the bottom valve body and is communicated with the through hole and the first flow through hole, and when the through hole is not aligned with the first flow through hole or the number of the through holes is not one of the first flow through holes, oil can smoothly flow into the first flow through hole from the through hole through the annular oil passing groove.
(3) In the invention, the precompression quantity of the compression valve piece group is adjusted by arranging the precompression adjusting gasket between the valve body of the bottom valve and the joint surface of the valve system of the bottom valve and arranging the precompression adjusting gaskets with different axial thicknesses.
(4) According to the invention, the end of the compression valve plate group far away from the bottom valve body is provided with the compression valve plate blocking cover for limiting the compression valve plate group, the adjusting gasket is arranged between the compression valve plate blocking cover and the compression valve plate group, when the diameters of the adjusting gaskets are different, the binding areas of the adjusting gaskets and the compression valve plate group are also different, so that the bending rigidity of the compression valve plate group is different, and the opening gap between the edge of the compression valve plate group and the second end of the bottom valve body is controlled.
(5) According to the invention, the compression valve plate group comprises at least one elastic valve plate, and the opening and closing of the bottom valve system and the binding surface of the bottom valve body are realized through the compression deformation of the elastic valve plate, so that the oil liquid circulation is realized.
(6) According to the invention, the positioning pin is arranged at the second end of the bottom valve body, and the conical surface is arranged on the side surface of the bottom valve body, so that the quick positioning can be realized when the bottom valve body and the bottom valve mounting seat of the oil pressure vibration absorber are assembled, the assembling efficiency is improved, and the damping characteristic of the oil pressure vibration absorber is prevented from being influenced by the assembling error.
(7) According to the invention, the pagoda-shaped spring is used for applying pressure to the valve plate, so that the opening pressure of the valve plate and the opening height of the valve plate relative to the first end of the bottom valve body can be adjusted in a narrow space.
(8) In the invention, the screw nut is used as the mandrel of the bottom valve, and the precompression quantity of the spring and the valve system of the bottom valve can be adjusted by adjusting the connecting position of the screw nut and the screw.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of a base valve of an oil damper according to the present application;
FIG. 2 is a schematic view of a valve plate blocking cover;
FIG. 3 is an enlarged view of portion D of FIG. 1;
the valve comprises a bottom valve body 1, a first flow through hole 1.1, a second flow through hole 1.2, a positioning pin 1.3, a positioning pin 2, a valve plate 3, a spring 4, a valve plate blocking cover 4.1, a through hole 4.2, an annular oil passing groove 5, a bottom valve mandrel 6, a bottom valve system 6.1, a pre-pressing adjusting gasket 6.2, a compression valve plate group 6.3, a compression valve plate blocking cover 7 and a filtering device.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 to 3, the present embodiment is applied to one-way circulation and filtration of oil of an oil pressure damper at a bottom valve.
A bottom valve of an oil pressure shock absorber comprises a bottom valve body 1, a valve plate 2, a spring 3, a valve plate blocking cover 4, a bottom valve mandrel 5 and a bottom valve system 6;
the bottom valve body 1 comprises a first flow through hole 1.1 and a second flow through hole 1.2 which penetrate through the bottom valve body 1, and a bottom valve mandrel mounting hole for mounting a bottom valve mandrel 5;
a filtering device 7 is arranged between the end face of the first end of the bottom valve body 1 and the end face of the first end of the valve block cover 4 and is used for filtering impurities in oil, and preventing particles in the oil from flowing into the bottom valve system 6 along with the oil and staying at the second end of the bottom valve body 1 to cause leakage between the bottom valve system 6 and the second end of the bottom valve body 1, so that the performance of the shock absorber is influenced; a through hole 4.1 corresponding to the first through hole 1.1 is formed in the first end of the valve block cover 4 and used for enabling oil to flow to the bottom valve body 1 through the valve block cover 4;
the valve plate 2 is sleeved on the first end of the valve plate blocking cover 4 and is in contact with the end face of the first end of the bottom valve body 1 to cover the second through hole 1.2 of the bottom valve body 1, and a spring 3 is arranged between the valve plate 2 and the second end of the valve plate blocking cover 4 to realize the opening and closing of the contact surface of the valve plate 2 and the end face of the first end of the bottom valve body 1;
the bottom valve system 6 is arranged at the second end of the bottom valve body 1 and is attached to the end part of the first through hole 1.1; the valve block cover 4 is sequentially connected with the bottom valve body 1 and the bottom valve system 6 through the bottom valve mandrel 5. The working principle of the bottom valve of the oil pressure shock absorber is as follows:
referring to fig. 1, the side a of the bottom valve a of the oil pressure damper is connected with the oil chamber of the working cylinder of the oil pressure damper, when the working cylinder is compressed, the oil pressure at the side a of the bottom valve a of the oil pressure damper rises, so that the oil pressure at the side a of the bottom valve a of the oil pressure damper is greater than the oil pressure at the side B of the bottom valve B of the oil pressure damper, oil in the working cylinder flows to the bottom valve body 1 through the through hole 4.1 of the valve block cover 4, after being filtered by the filter 7, the oil enters the first flow through hole 1.1, the oil generates pressure on the bottom valve system 6, so that a gap is generated between the bottom valve system 6 and the end face of the second end of the bottom valve body 1, and the oil flows into the side B of the bottom valve of the oil pressure damper; when the working cylinder is stretched, the oil pressure of the side A of the bottom valve of the oil pressure damper is reduced, so that the oil pressure of the side A of the bottom valve of the oil pressure damper is smaller than the oil pressure of the side B of the bottom valve of the oil pressure damper, oil flows into the second through hole 1.2 from the side B of the bottom valve of the oil pressure damper, and when the oil pressure is larger than the pressure exerted on the valve block 2 by the spring 3, the oil supports the valve block 2 and flows into the side A of the bottom valve of the oil pressure damper, and therefore one-way circulation and filtration of the oil in the oil pressure damper at the bottom valve are achieved.
Referring to fig. 2, an annular oil passing groove 4.2 is formed in the first end of the valve plate blocking cover 4, the annular oil passing groove 4.2 is communicated with the through hole 4.1 and the first flow through holes 1.1, when the through hole 4.1 is not aligned with the first flow through holes 1.1 or the number of the through holes 4.1 is not one-to-one corresponding to the number of the first flow through holes 1.1, an oil containing cavity is formed by the annular oil passing groove 4.2, and oil flows into the annular oil passing groove 4.2 after entering the through hole 4.1 and then flows into the first flow through holes 1.1.
Referring to fig. 3, the bottom valve train 6 includes a pre-pressure adjusting shim 6.1 and a compression valve plate set 6.2; the pre-compression adjusting gasket 6.1 is arranged between the second end of the bottom valve body 1 and the compression valve plate group 6.2, and the pre-compression amount of the compression valve plate group 6.2 can be adjusted by adjusting the axial thickness of the pre-compression adjusting gasket 6.1.
The bottom valve system 6 further comprises a compression valve block cover 6.3, the compression valve block cover 6.3 is installed at one end, far away from the bottom valve body 1, of the compression valve block 6.2 and used for limiting the compression valve block 6.2, an adjusting gasket is arranged between the compression valve block cover 6.3 and the compression valve block 6.2, when the diameters of the adjusting gaskets are different, the attaching areas of the adjusting gasket and the compression valve block 6.2 are also different, the bending rigidity of the compression valve block 6.2 is different, and therefore the opening gap between the edge of the compression valve block 6.2 and the second end of the bottom valve body 1 is controlled.
Referring to fig. 3, the sealing surface of the bottom valve body 1, which is attached to the bottom valve system 6, is designed as a conical surface, so that the bottom valve system 6 obtains a certain initial compression amount, and the bottom valve system 6 is attached to the second end of the bottom valve body 1.
The compression valve plate group 6.2 comprises at least one elastic valve plate, and oil can flow out of the first through hole 1.1 through compression deformation under the oil pressure.
Referring to fig. 1, the second end of the base valve body 1 is provided with a positioning pin 1.3, when the base valve of the oil pressure shock absorber is assembled to the base valve installation seat of the oil pressure shock absorber, the positioning of the base valve body 1 and the base valve installation seat in the oil pressure shock absorber is realized through the positioning pin 1.3, and the assembly precision and the assembly efficiency are improved.
The side face of the bottom valve body 1 is provided with a conical surface which is used for being matched with a bottom valve mounting seat of an oil pressure vibration absorber in a centering mode, and coaxial positioning of the bottom valve body 1 and the bottom valve mounting seat in the oil pressure vibration absorber is achieved.
Referring to fig. 1, the spring 3 is a pagoda-shaped spring, and applies an elastic force to the valve sheet 2 through a boss at the second end of the valve sheet blocking cover 4, so as to limit the valve sheet 2 by the valve sheet blocking cover 4 and control the opening height of the valve sheet 2 relative to the first end of the bottom valve body 1.
Referring to fig. 1, the bottom valve mandrel 5 comprises a screw and a nut, the precompression amount of the bottom valve system 6 is adjusted by adjusting the degree of the screw in the bottom valve body 1, the valve block blocking cover 4 is fixed by the connection of the nut and the screw, the precompression amount of the spring 3 is adjusted by adjusting the degree of the screw in the bottom valve body 1, when the bottom valve part needs to be disassembled, only the positions of the screw and the nut need to be loosened, and the disassembly is convenient.
The filtering device 7 comprises at least one layer of filter screen for filtering impurities in oil entering the bottom valve system 6.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A bottom valve of an oil pressure shock absorber is characterized by comprising a bottom valve body (1), a valve plate (2), a spring (3), a valve plate blocking cover (4), a bottom valve mandrel (5) and a bottom valve system (6);
the bottom valve body (1) comprises a first flow through hole (1.1) and a second flow through hole (1.2) which penetrate through the bottom valve body (1) and a bottom valve mandrel mounting hole for mounting a bottom valve mandrel (5);
a filtering device (7) is arranged between the end face of the first end of the bottom valve body (1) and the end face of the first end of the valve block cover (4) and is used for filtering impurities in oil; a through hole (4.1) corresponding to the first flow through hole (1.1) is formed in the first end of the valve block cover (4) and used for enabling oil to flow to the bottom valve body (1) through the valve block cover (4); an annular oil passing groove (4.2) is formed in the first end of the valve block cover (4), and the annular oil passing groove (4.2) is communicated with the through hole (4.1) and the first flow through hole (1.1) and used for enabling oil to smoothly flow into the first flow through hole (1.1) from the through hole (4.1);
the valve plate (2) is sleeved on the first end of the valve plate blocking cover (4), is in contact with the end face of the first end of the bottom valve body (1), and covers the second through hole (1.2) of the bottom valve body (1), and a spring (3) is arranged between the valve plate (2) and the second end of the valve plate blocking cover (4) and used for realizing the opening and closing of a contact surface of the valve plate (2) and the end face of the first end of the bottom valve body (1);
the bottom valve system (6) is arranged at the second end of the bottom valve body (1) and is attached to the end part of the first flow through hole (1.1); the valve block cover (4) is sequentially connected with the bottom valve body (1) and the bottom valve system (6) through a bottom valve mandrel (5).
2. An oleo base valve according to claim 1, characterized in that the base valve train (6) comprises a pre-pressure setting shim (6.1) and a compression valve plate set (6.2); the pre-compression adjusting gasket (6.1) is arranged between the second end of the bottom valve body (1) and the compression valve piece group (6.2) and used for adjusting the pre-compression amount of the compression valve piece group (6.2).
3. An oleo base valve according to claim 2, characterized in that the base valve train (6) further comprises a compression flap (6.3), the compression flap (6.3) being mounted at the end of the compression flap (6.2) remote from the base valve body (1) for limiting the compression flap (6.2).
4. An oil damper foot valve according to claim 2, characterized in that the compression vane set (6.2) comprises at least one resilient vane which is capable of being compressed under oil pressure to deform so that oil flows out of the first through-flow opening (1.1).
5. The base valve of an oil pressure shock absorber as claimed in claim 1, characterized in that the second end of the base valve body (1) is provided with a positioning pin (1.3) for positioning the base valve body (1) with a base valve mounting seat in the oil pressure shock absorber.
6. The bottom valve of an oil pressure absorber as claimed in claim 1, wherein the side of the bottom valve body (1) is provided with a conical surface for coaxial positioning of the bottom valve body (1) and a bottom valve mounting seat in the oil pressure absorber.
7. The foot valve for an oil pressure shock absorber as claimed in claim 1, wherein the spring (3) is a pagoda-shaped spring for limiting the valve plate (2) by the valve plate cover (4).
8. A base valve for an oil pressure shock absorber according to claim 1, characterized in that the base valve spindle (5) comprises a screw and nut for adjusting the amount of precompression of the spring (3) and the base valve train (6).
9. An oleo base valve according to claim 1, characterized in that the filtering means (7) comprise at least one layer of filtering mesh for filtering impurities in the oil entering the base valve train (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317776.5A CN111043224B (en) | 2019-12-19 | 2019-12-19 | Bottom valve of oil pressure shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317776.5A CN111043224B (en) | 2019-12-19 | 2019-12-19 | Bottom valve of oil pressure shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111043224A CN111043224A (en) | 2020-04-21 |
| CN111043224B true CN111043224B (en) | 2021-09-28 |
Family
ID=70237673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911317776.5A Active CN111043224B (en) | 2019-12-19 | 2019-12-19 | Bottom valve of oil pressure shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043224B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895030B (en) * | 2020-07-31 | 2022-03-01 | 台州科技职业学院 | Hydraulic compression damping valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101457662B1 (en) * | 2013-03-15 | 2014-11-07 | 주식회사 만도 | Piston assembly of shock absorber |
| CN204327843U (en) * | 2014-12-12 | 2015-05-13 | 浙江永贵电器股份有限公司 | A kind of valve architecture of locomotive vehicle oil hydraulic damper |
| CN106499767A (en) * | 2016-12-30 | 2017-03-15 | 珠海市业成轨道交通设备科技有限公司 | A kind of bottom valve system of high speed motor car with one-way circulation oil-pressure damper |
| CN107654560A (en) * | 2017-11-01 | 2018-02-02 | 四川宁江山川机械有限责任公司 | Vehicle shock absorber compression valve |
-
2019
- 2019-12-19 CN CN201911317776.5A patent/CN111043224B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111043224A (en) | 2020-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102011075518A1 (en) | Arrangement for throttling a fluid flow and corresponding piston pump for conveying fluids | |
| CN109340298B (en) | Piston built-in volume compensation structure for damper | |
| DE102018105320A1 (en) | Pulsation damper and fuel pump device | |
| CN111043224B (en) | Bottom valve of oil pressure shock absorber | |
| DE102010006168A1 (en) | cylinder device | |
| DE102009050738A1 (en) | Main stage valve for adaptive damping | |
| DE10305310B4 (en) | Device for damping pressure pulsations | |
| DE10258815A1 (en) | Vibration damper with amplitude-dependent damping force | |
| CN215521786U (en) | Compression valve system structure and damping shock absorber | |
| CN108119592B (en) | Bidirectional external adjustable oil pressure shock absorber for high-speed marking rail | |
| CN215293096U (en) | Oil pipe joint | |
| CN210265361U (en) | Hydraulic medium filtering device for automatic transmission | |
| CN111255848B (en) | Adjustable damping valve for rail vehicle vibration absorber and adjusting method thereof | |
| US9951841B2 (en) | Damping fluid devices, systems and methods | |
| CN210068837U (en) | Bottom valve assembly for double-circulation anti-snaking oil pressure shock absorber of high-speed motor car | |
| CN110905960B (en) | Two-way discharge vibration damping valve | |
| CN103180610A (en) | Piston pump for delivering fluids and associated vehicle brake system | |
| CN210423755U (en) | Vacuum backflow safety valve | |
| CN112555429A (en) | All-welded zero-leakage-rate pressure reducing valve | |
| CN2888109Y (en) | Fuel pump with pressure regulating valve | |
| CN113738807A (en) | Pressure slow-drop check valve for vibration damper | |
| CN214742967U (en) | One-way circulation valve assembly for shock absorber | |
| CN218624367U (en) | Check valve of oil filter | |
| CN211302248U (en) | Oil filter | |
| CN212960044U (en) | Rollover valve with noise reduction function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |