CN205715028U - A kind of super-pressure hydraulic control check valve - Google Patents

A kind of super-pressure hydraulic control check valve Download PDF

Info

Publication number
CN205715028U
CN205715028U CN201620361441.9U CN201620361441U CN205715028U CN 205715028 U CN205715028 U CN 205715028U CN 201620361441 U CN201620361441 U CN 201620361441U CN 205715028 U CN205715028 U CN 205715028U
Authority
CN
China
Prior art keywords
valve
sliding sleeve
oil
rod
valve body
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
Application number
CN201620361441.9U
Other languages
Chinese (zh)
Inventor
李天涛
王超光
于安才
刘兵
李阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Yourui Nasi Intelligent Equipment Co Ltd
Original Assignee
Tianjin Yourui Nasi Intelligent Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Yourui Nasi Intelligent Equipment Co Ltd filed Critical Tianjin Yourui Nasi Intelligent Equipment Co Ltd
Priority to CN201620361441.9U priority Critical patent/CN205715028U/en
Application granted granted Critical
Publication of CN205715028U publication Critical patent/CN205715028U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

This utility model relates to a kind of super-pressure hydraulic control check valve, including valve rod, spring, valve body and matrix.In this utility model, valve body is integral type structure, bearing capacity is higher, improve service life, and reduce machining accuracy and assembly difficulty, avoid tradition hydraulic control one-way valve leakage point more and be unfavorable for the defect that ultra-high voltage environment uses, cylindrical projection can directly be inserted on the interface of load and pass through seal ring seal, further reduce leakage point when supertension uses, the truncated cone changeover portion made respectively on spool and oil-out and truncated cone seal section, the two seals firmly for face contact type, reliability is higher, overall structure in valve body is simple, be conducive to life-time service, and when maintenance, matrix is pulled down and i.e. other parts can be taken apart, install and safeguard very convenient.

Description

A kind of super-pressure hydraulic control check valve
Technical field
This utility model belongs to super-pressure hydraulic control check valve construction applications, especially a kind of super-pressure hydraulic control check valve.
Background technology
Hydraulic control one-way valve be dependent on control fluid pressure, the valve of check valve reverse circulated can be made, its common structure include valve body, Spool, spring and push rod, push rod is arranged on the side of body cavity body, and opposite side installs spool, the elastic force of spring by spring In the fluid import made in the end of spool is withstood on cavity.When normally working, push rod is away from spool, so fluid is from oil-feed After mouth enters, making spool overcome the elastic force of spring, make spool move to the right, make fluid import open, fluid is on valve body Oil-out flows out, and when oil circuit control hydraulic fluid port enters control fluid, fluid promotes the piston of push rod end, makes push rod move right And spool is promoted to the opposite side of cavity, now fluid import is opened, and fluid can flow into cavity and by oil-in stream from oil-out Go out, be achieved in that the reverse flow of fluid.Said structure there is problems in that 1. oil-outs must use extra joint Can connect, assembling complexity, and add the leakage point of medium, need to use special joint when supertension uses, improve Cost, and be not durable;2. in the cavity of valve body, push rod is installed, the structure complexity of inside, stablizing of use certainly will be increased Property and service life reduction.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that simple in construction, easy of use and reliable and stable Plant super-pressure hydraulic control check valve.
This utility model adopts the technical scheme that:
A kind of super-pressure hydraulic control check valve, it is characterised in that: include valve rod, spring, valve body and matrix, a side end face of matrix Make a groove, be embedded in a side end of described valve body in this groove, in this valve body one side end, make a sliding sleeve chamber, at valve body End side in make a valve-rod cavity, valve-rod cavity is coaxial with sliding sleeve chamber, and valve-rod cavity one side end connects and it with sliding sleeve chamber Diameter is less than sliding sleeve chamber diameter at this, and valve-rod cavity end side is positioned at the end side surface of valve body and makes oil-out, Sliding sleeve intracavity near matrix seals setting-in one sliding sleeve that slides, and arranges a valve rod extended to valve-rod cavity on sliding sleeve, and this valve rod is stretched The end outer rim going out oil-out seals laminating with oil-out inner edge, and the stem diameter in valve-rod cavity is less than the diameter of valve-rod cavity, The valve rod outer rim pocketed springs of sliding sleeve intracavity, this spring one side end top is pressed in the end face of sliding sleeve, the top, other end end of this spring Pressing on the valve body of end, sliding sleeve chamber in this place, described valve rod stretches into the end of groove and installs the piston that can seal slip in groove, Retention gap between the end face that sliding sleeve is relative with piston, makes an opening in body end side, this opening connect with groove and Its diameter, less than the diameter of groove, is made an oil-in connected with sliding sleeve chamber on valve body, is made a connection sliding sleeve on sliding sleeve The restriction in gap between chamber and sliding sleeve and piston.
And, described valve rod stretches out the end of oil-out and makes the diameter spool 1 more than valve rod, this spool and the junction of valve rod Make truncated cone changeover portion, make in oil-out inner edge with truncated cone changeover portion seal against each other laminating truncated cone seal Section..
And, the end side of described valve body makes a cylindrical projection, and the end face of this cylindrical projection makes oil-out, and this is fuel-displaced Fitting with spool outer fringe seal in mouth inner edge, the outer rim in cylindrical projection is set with a sealing ring.
Advantage of the present utility model and good effect be:
In this utility model, valve body is integral type structure, and bearing capacity is higher, improves service life, and reduces processing Precision and assembly difficulty, it is to avoid traditional hydraulic control one-way valve leakage point is more and is unfavorable for the defect that ultra-high voltage environment uses, cylinder Projection can directly be inserted on the interface of load and by seal ring seal, further reduce leakage point when supertension uses, The truncated cone changeover portion made respectively on spool and oil-out and truncated cone seal section, the two seals firmly for face contact type, can Higher by property, overall structure in valve body is simple, beneficially life-time service, and when maintenance, and being pulled down by matrix i.e. can be by Other parts are taken apart, install and safeguard very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, further illustrating this utility model, following embodiment is illustrative, is not determinate, Protection domain of the present utility model can not be limited with following embodiment.
A kind of super-pressure hydraulic control check valve, as it is shown in figure 1, innovation of the present utility model is: include valve rod 7, spring 8, valve Body 4 and matrix 14, a side end face of matrix is made a groove 15, is embedded in made the dashing forward of a side end of described valve body in this groove Play 16, make a sliding sleeve chamber 6 in this valve body one side end, in the end side of valve body, make a valve-rod cavity 18, valve-rod cavity Coaxial with sliding sleeve chamber, valve-rod cavity one side end connects with sliding sleeve chamber and its diameter is less than sliding sleeve chamber diameter at this, and valve-rod cavity is another One side end is positioned at the end side surface of valve body and makes oil-out 19, and the sliding sleeve intracavity near matrix seals slip setting-in one Sliding sleeve 9, arranges the valve rod extended to valve-rod cavity on sliding sleeve, and this valve rod stretches out end outer rim 20 and the oil-out inner edge of oil-out Sealing laminating, the stem diameter in valve-rod cavity is less than the diameter of valve-rod cavity, at the valve rod outer rim pocketed springs of sliding sleeve intracavity, and should Spring one side end top is pressed in the end face of sliding sleeve, and the top, other end end of this spring is pressed on the valve body 17 of end, sliding sleeve chamber in this place, Described valve rod stretches into the end of groove and installs the piston 12 that can seal slip in groove, protects between the end face that sliding sleeve is relative with piston Staying gap 11, make an opening 13 in body end side, this opening connects with groove and its diameter is less than the diameter of groove, Valve body is made an oil-in 5 connected with sliding sleeve chamber, between sliding sleeve being made between a connection sliding sleeve chamber and sliding sleeve and piston The restriction 10 of gap.
In the present embodiment, described valve rod stretches out the end of oil-out and makes the diameter spool 1 more than valve rod, this spool and valve rod Truncated cone changeover portion is made in junction, makes in oil-out inner edge and seals against each other the truncated cone of laminating with truncated cone changeover portion Seal section.The end side of described valve body makes a cylindrical projection 3, and the end face of this cylindrical projection makes oil-out, and this is fuel-displaced Fitting with spool outer fringe seal in mouth inner edge, the outer rim in cylindrical projection is set with a sealing ring 2.All parts all use 316 stainless Steel, improves service life.
When this utility model uses:
1., when oil-in (A) enters supertension fluid, fluid flows in the gap between sliding sleeve and piston from restriction, and promotes Sliding sleeve moves to oil-out direction, and now spool departs from oil-out, makes fluid flow out from oil-out (B) place.
2. oil-out (B) is in supertension state, and spool is extruded and be in closed state, hydraulic control one-way valve by supertension fluid Enter supertension packing state.
3. opening (X) enters and controls fluid and make piston driving valve rod and valve core movement, and now fluid can be entered by oil-out (B) Enter, and flowed out by oil-in (A).
In this utility model, valve body is integral type structure, and bearing capacity is higher, improves service life, and reduces processing Precision and assembly difficulty, it is to avoid traditional hydraulic control one-way valve leakage point is more and is unfavorable for the defect that ultra-high voltage environment uses, cylinder Projection can directly be inserted on the interface of load and by seal ring seal, further reduce leakage point when supertension uses, The truncated cone changeover portion made respectively on spool and oil-out and truncated cone seal section, the two seals firmly for face contact type, can Higher by property, overall structure in valve body is simple, beneficially life-time service, and when maintenance, and being pulled down by matrix i.e. can be by Other parts are taken apart, install and safeguard very convenient.

Claims (3)

1. a super-pressure hydraulic control check valve, it is characterised in that: include valve rod, spring, valve body and matrix, a side of matrix A groove is made in face, is embedded in a side end of described valve body, makes a sliding sleeve chamber, at valve in this valve body one side end in this groove Making a valve-rod cavity in the end side of body, valve-rod cavity is coaxial with sliding sleeve chamber, valve-rod cavity one side end connect with sliding sleeve chamber and Its diameter is less than sliding sleeve chamber diameter at this, and valve-rod cavity end side is positioned at the end side surface of valve body and makes oil-out, Sliding sleeve intracavity near matrix seals setting-in one sliding sleeve that slides, and arranges a valve rod extended to valve-rod cavity on sliding sleeve, and this valve rod is stretched The end outer rim going out oil-out seals laminating with oil-out inner edge, and the stem diameter in valve-rod cavity is less than the diameter of valve-rod cavity, The valve rod outer rim pocketed springs of sliding sleeve intracavity, this spring one side end top is pressed in the end face of sliding sleeve, the top, other end end of this spring Pressing on the valve body of end, sliding sleeve chamber in this place, described valve rod stretches into the end of groove and installs the piston that can seal slip in groove, Retention gap between the end face that sliding sleeve is relative with piston, makes an opening in body end side, this opening connect with groove and Its diameter, less than the diameter of groove, is made an oil-in connected with sliding sleeve chamber on valve body, is made a connection sliding sleeve on sliding sleeve The restriction in gap between chamber and sliding sleeve and piston.
A kind of super-pressure hydraulic control check valve the most according to claim 1, it is characterised in that: described valve rod stretches out oil-out The diameter spool 1 more than valve rod is made in end, and truncated cone changeover portion is made, in oil-out in the junction of this spool and valve rod Edge is made and is sealed against each other the truncated cone seal section of laminating with truncated cone changeover portion.
A kind of super-pressure hydraulic control check valve the most according to claim 2, it is characterised in that: the end side of described valve body Making a cylindrical projection, the end face of this cylindrical projection makes oil-out, and fitting with spool outer fringe seal in this oil-out inner edge, is justifying The outer rim of post projection is set with a sealing ring.
CN201620361441.9U 2016-04-25 2016-04-25 A kind of super-pressure hydraulic control check valve Active CN205715028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620361441.9U CN205715028U (en) 2016-04-25 2016-04-25 A kind of super-pressure hydraulic control check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620361441.9U CN205715028U (en) 2016-04-25 2016-04-25 A kind of super-pressure hydraulic control check valve

Publications (1)

Publication Number Publication Date
CN205715028U true CN205715028U (en) 2016-11-23

Family

ID=57293553

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620361441.9U Active CN205715028U (en) 2016-04-25 2016-04-25 A kind of super-pressure hydraulic control check valve

Country Status (1)

Country Link
CN (1) CN205715028U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107606250A (en) * 2017-09-07 2018-01-19 上海空间推进研究所 A kind of check valve for pneumatic booster
CN109539323A (en) * 2018-12-06 2019-03-29 华帝股份有限公司 Nozzle adjusting device and gas cooking utensils of adaptable multiple air supply
CN111467697A (en) * 2020-04-29 2020-07-31 重庆万州三峡外科医院有限公司 Isolation suit respiratory support device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107606250A (en) * 2017-09-07 2018-01-19 上海空间推进研究所 A kind of check valve for pneumatic booster
CN109539323A (en) * 2018-12-06 2019-03-29 华帝股份有限公司 Nozzle adjusting device and gas cooking utensils of adaptable multiple air supply
CN111467697A (en) * 2020-04-29 2020-07-31 重庆万州三峡外科医院有限公司 Isolation suit respiratory support device
CN111467697B (en) * 2020-04-29 2021-03-23 重庆万州三峡外科医院有限公司 Isolation suit respiratory support device

Similar Documents

Publication Publication Date Title
CN205715028U (en) A kind of super-pressure hydraulic control check valve
CN104006023B (en) One utilizes gap sealed plunger case
CN105065700A (en) Self-sealing gate valve structure
CN203836245U (en) Four-eccentricity all-metal both-way sealing butterfly valve
CN201884786U (en) Two-way cartridge inserted valve
CN106051232B (en) A kind of check valve and its working method suitable for big flow working range
CN206429470U (en) A kind of hydraulic control one-way valve
CN202812225U (en) Double-acting double-sealed balanced type throttle valve
CN201034184Y (en) Standing ball valve seat structure
CN203614826U (en) Stacked unidirectional valve
CN208702831U (en) A kind of oil-returning structure at a slow speed of oil cylinder
CN205446828U (en) One -way valve
CN110805725B (en) Direct-acting electromagnetic one-way valve
CN209385700U (en) A kind of high-performance two-way hard seal spiral valve
CN203516830U (en) High-pressure balanced type three-way control valve
CN206682371U (en) A kind of mandatory check valve
CN207796183U (en) A kind of check-valves
CN203131127U (en) Ultrahigh pressure grease injecting joint
CN207539421U (en) A kind of guide electromagnetic valve
CN219345596U (en) Small-bore lifting check valve clack anti-rotation structure
CN209977379U (en) Integral sealing two-position two-way ball valve
CN108458137A (en) Check valve for anti-backflow
CN108317277A (en) Improving prevents the valve of reflux performance
CN203835861U (en) Hydraulic cylinder locking device
CN108150684B (en) Two-way pressure reducing valve

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant