CN208237165U - Guide's pressure reducing valve - Google Patents
Guide's pressure reducing valve Download PDFInfo
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- CN208237165U CN208237165U CN201820633086.5U CN201820633086U CN208237165U CN 208237165 U CN208237165 U CN 208237165U CN 201820633086 U CN201820633086 U CN 201820633086U CN 208237165 U CN208237165 U CN 208237165U
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Abstract
The utility model relates to pressure control valve technical fields, specifically provide a kind of guide's pressure reducing valve, guide's pressure reducing valve includes valve body, valve body has main valve chamber, main valve seat and main valve plug used in conjunction with are equipped in main valve chamber, air inlet and air outlet are equipped in the two sides of main valve seat on valve body, valve body also has guide's valve chamber, guide's valve seat and pilot valve used in conjunction with are equipped in guide's valve chamber, guide's valve chamber has the air inlet side for being located at guide's valve seat two sides and out gas side, main valve plug is equipped with valve rod, the opening and closing element acted for driving stem to drive main valve plug to be opened is equipped in valve body, it is equipped in valve body and is connected to the gas side that goes out of guide's valve chamber with the opening and closing chamber for driving opening and closing element to act, the valve rod be equipped be connected to the air inlet and the air inlet side to pass through guide's valve chamber when pilot valve is opened to opening and closing The gas passage of chamber input gas.
Description
Technical field
The utility model relates to pressure control valve technical fields, and in particular to a kind of guide's pressure reducing valve.
Background technique
Guide's pressure reducing valve is the flow that medium is adjusted using the aperture of the intracorporal opening and closing element of control valve, by the pressure of medium
It reduces, while adjusting the aperture of opening and closing element by the effect of downstream pressure, keep downstream pressure in a certain range, in import
In the continually changing situation of pressure, outlet pressure is kept to stablize valve body equipment in the range of setting.
Authorization Notice No. is CN205479649U, and authorized announcement date discloses one kind for the Chinese patent of 2016.08.17 and subtracts
Main valve guide device in pressure gas channel, including valve body, mandril and threaded rod, further include diaphragm, and the valve body is surrounded with diaphragm exhales
Chamber to be inhaled, offers stomata on valve body, the end of threaded rod is fixedly connected with elastic component, is also fixedly connected with attachment base on diaphragm,
Elastic component is fixedly connected with attachment base, and mandril is fixed on the side that diaphragm deviates from respiratory cavity.The stomata includes being respectively set
Venthole and air inlet on the side wall of respiratory cavity, venthole and air inlet are separately connected extraneous gas source, and in outlet
It is provided with solenoid valve on hole and air inlet, air inlet is controlled whether into air inlet by solenoid valve or whether controls venthole to go out
Gas.Wherein the problem is that: introduce control gas from outside and increase the overall dimensions of valve body.
Application publication number is CN106870807A, and data of publication of application discloses a kind of high for the Chinese patent of 2017.06.20
Pneumatic pressure-release valve is pressed, which includes pilot valve and main valve, and is sequentially arranged elder generation from top to bottom using second level concentric type structure
The spool of pilot valve and main valve, pilot valve and main valve all uses the cone valve structure of main valve formula self-sealing function admirable, in pilot stage
Pressure compares the enlarger that diaphragm side valve type is used in mechanism.Air inlet and venthole are offered in the valve body of main valve, and
It is logical in the gas that air inlet position is provided with the inner cavity of connection pilot valve in order to realize control of the pilot valve to main valve opening and closing degree
Road avoids from outside and introduces control gas, directlys adopt air inlet as control gas to lead to pilot valve.But present in it
Problem is that in order to guarantee the overall dimensions of valve body, the assembly of pressure reducing valve is extremely compact, and processing gas is logical on the valve body of main valve
Road, difficulty is larger, and gas passage and pilot valve are difficult to ensure the precision of assembly in assembly.
Utility model content
The purpose of this utility model is to provide a kind of guide's pressure reducing valve, it is able to solve and pressure reducing valve is manufactured in the prior art
The problem of assembly difficulty.
To achieve the above object, guide's pressure reducing valve adopts the following technical scheme that in the utility model
Guide's pressure reducing valve, including valve body, valve body have main valve chamber, and main valve seat is equipped in main valve chamber and is used cooperatively with it
Main valve plug, be equipped with air inlet and air outlet in the two sides of main valve seat on valve body, valve body also has guide's valve chamber, in guide's valve chamber
Equipped with guide's valve seat and pilot valve used in conjunction with, guide's valve chamber have positioned at guide's valve seat two sides air inlet side and
Gas side out, main valve plug are equipped with valve rod, and the opening and closing element acted for driving stem to drive main valve plug to be opened, valve are equipped in valve body
It is equipped in body and is connected to the gas side that goes out of guide's valve chamber with the opening and closing chamber for driving opening and closing element to act, the valve rod is equipped with
Be connected to the air inlet and the air inlet side to input gas to opening and closing chamber by guide's valve chamber when pilot valve is opened
Gas passage.
The beneficial effect is that: by the way that gas passage is arranged on valve rod, it is used in the control gas of control guide's valve events
Body can be introduced into pilot valve from main valve plug, the original structure of main valve chamber be utilized to be transformed, technology maturation is convenient for skill
Art personnel realize, and the channel for control gas circulation need not be provided on valve body, and the production for reducing technical staff is difficult
Degree, and is arranged gas passage in main valve plug, and the assembly relation of the gas passage and pilot valve technical staff that is more convenient for adjusts
It is whole, in the connection for completing that gas passage and pilot valve can be completed when the assembly of main valve plug and main valve seat, can effectively solve the problem that
The problem of manufacturing assembly difficulty.
Further, the guide holder being oriented to valve rod along main valve plug open-shut direction, guide holder are equipped in the valve body
With the perforation passed through for valve rod, ventilative through hole is equipped in the side of the perforation on guide holder.
The beneficial effect is that: the guide holder being oriented to valve rod is provided in valve body, when valve rod drives main valve plug
When movement, valve rod makes main valve plug be not susceptible to deflect during movement with guide holder cooperation, and is able to maintain opening process
In stabilization, stablizing the ventilative through hole for playing the role of optimization, and opening up to the pressure of gas outlet can lead to during exercise
Cross more gases, it is easier to realize the requirement of pressure reducing valve big flow.
Further, the perforation on the guide holder is formed by the guide sleeve being installed on the guide holder.
The beneficial effect is that: guide sleeve is set on guide holder, and the contact area of guide sleeve and valve rod is larger, can guarantee to lead
Cover the guiding role to valve rod.
Further, the opening and closing element is the piston being movably arranged in valve body, is equipped with and the outlet in the valve body
The outlet chamber of mouthful connection, has towards the balance pressure-bearing side of the outlet chamber on piston, the opening and closing chamber is located at institute
Piston is stated in the side away from the balance pressure-bearing side.
The beneficial effect is that: piston is set by opening and closing element, piston is differed with the area of main valve plug may not necessarily be too big,
Pilot valve, which only needs to carry out inlet pressure lesser adjusting, can complete driving to piston, and the required precision exported
When higher, first the difference in areas of piston and main valve plug can be jumped big, piston is guaranteeing the variation rdativery sensitive of pressure, pilot valve
Outlet pressure can guarantee higher precision when stablizing again.
Further, it is equipped between the piston and valve rod for by the mobile list to open main valve plug of piston top valve push rod
To pushing tow structure.
The beneficial effect is that: unidirectional pushing tow structure can guarantee piston top valve push rod accuracy of action.
Further, the side away from the balance pressure-bearing side in the valve body in the piston, which is equipped with, was installed with
Cross seat, the pilot valve and the valve rod cooperate along valve rod moving direction and transition seat guiding, piston towards institute
The side and the valve body, transition seat for stating transition seat, which are matched, is encircled into the opening and closing chamber.
The beneficial effect is that: transition seat can carry out a guiding role to the movement of valve rod and pilot valve, guarantee
It is acted in place.
Further, transition seat is installed in the valve body, the pilot valve and the valve rod are along the valve rod side of movement
Cooperate to being oriented in transition seat.
The beneficial effect is that: transition seat can carry out a guiding role to the movement of valve rod and pilot valve, guarantee
It is acted in place, and transition seat can guarantee the sealing effect between main valve chamber and guide's valve chamber, and be provided on transition seat
Transition seat channel reduces the space that gas can occupy, it is only necessary to which the gas of less volume can be realized to piston and master
The sensitive control of spool, precision are higher.
Further, the transition seat is equipped with the first pilot hole cooperated with stem guiding and matches with pilot valve guiding
The second pilot hole closed, the connection corresponding with the second pilot hole of the first pilot hole.
The beneficial effect is that: the first and second pilot hole is provided on transition seat, pilot hole is led with valve rod and pilot valve
To cooperation, the first and second pilot hole is connected to, ensure that the circulation of gas.
Further, the pilot valve is equipped with the guide of the air inlet side of the first pilot hole of connection and guide's valve chamber
Gas channels, the gas channels are connected to by first pilot hole with the gas passage on the valve rod.
The beneficial effect is that: be provided with guide's gas channels in pilot valve, gas passage by the first pilot hole and
Gas passage connection, it is intracavitary to ensure that high pressure gas can enter pilot valve from guide's gas channels.
Further, the transition seat is equipped with the connection opening and closing chamber and the transition seat for going out gas side of guide's valve chamber is logical
Road.
The beneficial effect is that: it is provided with transition seat channel on transition seat, has been connected to opening and closing chamber and guide's valve chamber, guarantees
The feasibility of work.
Detailed description of the invention
Fig. 1 is the side view of guide's pressure reducing valve in the utility model；
Fig. 2 be along Fig. 1 F-F to view；
Fig. 3 is the top view of guide holder in the utility model；
Fig. 4 be along Fig. 3 A-A to view；
Fig. 5 is the top view of piston in the utility model；
Fig. 6 is the view of the B-B direction along Fig. 5.
In figure: 1. main valve bodies；101. air inlet；102. gas outlet；103. inlet plenum；104. outlet chamber；2. main valve
Core；3. main valve seat；4. guide holder；41. ventilative through hole；42. guide sleeve；5. valve rod；51. gas passage；6. piston；61. opening and closing
Chamber；7. transition seat；71. transition seat channel；8. guide's valve seat；81. connected pathways；82. circular passage；9 pilot valves；10. film
Piece；11. lower spring cup；12. pilot valve control chamber；13. guide valve blocks；14. guide's valve spring；15. upper spring seat；16. adjusting
Bar；17. main spool spring；18. blanking cover.
Specific embodiment
It as shown in Figures 1 to 6, is the specific embodiment of guide's pressure reducing valve in the utility model, guide's pressure reducing valve includes
Two parts, respectively main valve and the integrally disposed pilot valve of main valve, the lower part of guide's pressure reducing valve is arranged in main valve and pilot valve is set
It sets on the top of guide's pressure reducing valve.Main valve includes main valve body 1, offers supplied gas respectively on two opposite faces of main valve body 1
The air inlet 101 that enters in main valve body 1 and the gas outlet 102 being discharged after being depressurized the high pressure gas at air inlet 101,
It is provided with the main valve seat 3 for separating the two between air inlet 101 and gas outlet 102, offers on main valve seat 3 for air inlet
101 high pressure gas enters the opening of 102 side of gas outlet, accordingly, is provided in opening and to be blocked to opening
Main valve plug drives the movement of main valve plug that being connected to for air inlet 101 and gas outlet 102 may be implemented by valve rod.In order to guarantee elder generation
The control action of pilot valve is provided with to guide's valve chamber with downstream pressure adjustment structure on the valve rod for driving main valve plug movement
Gas passage, the high pressure gas of air inlet 101 is introduced into guide's valve chamber by gas passage, and is communicated in pilot valve chamber
The opening and closing element of the opening and closing degree of gas outlet 102 is controlled by admission pressure.The high pressure gas entered in guide's valve chamber can
The movement of opening and closing element is controlled, to realize the change of gas outlet opening and closing degree.Gas passage has air inlet side and outlet
The air inlet side of side, gas passage is connected to the air inlet 101 in main valve body 1, and the gas side that goes out of gas passage connects with guide's valve chamber
It is logical.
As a kind of embodiment of optimization, main valve body 1 uses the shape of cylindrical body, in being internally provided with for main valve body 1
The space of various assemblies is accommodated, pilot valve integrated installation offers air inlet on the top of main valve body 1, in the bottom of main valve body 1
101 and gas outlet 102, it is located on the opposite face of main valve body 1, the space in main valve body 1, and air inlet can be connected to
101 and gas outlet 102 be staggeredly arranged, height of the gas outlet 102 apart from ground is higher than the height of air inlet 101, and because
Air inlet 101 is staggeredly arranged with gas outlet 102, cooperates main valve seat 3 and main valve plug and space is separated into close to air inlet 101 1
The outlet chamber 104 of the inlet plenum 103 of side and close 102 side of gas outlet.
Main valve plug includes the main valve plug 2 blocked to the valve port of main valve, and structure is end cap shape, the top surface size of main valve plug
It is greater than the size of valve port, to realize the closure to valve port, and is provided in inlet plenum 103 and main valve plug 2 is carried out
The main spool spring 17 of support is resetted, the bottom of main spool spring 17, which is provided with, to be fixed main spool spring 17 and in main valve body 1
The blanking cover 18 that is blocked of space.Main valve plug further includes the valve rod 5 being threaded through in main valve plug 2, and the air inlet side of valve rod 5 is from main valve
It is pierced by core 2, and the gas side that goes out of valve rod 5 extends directly up, is connected to guide's valve chamber of pilot valve.It is provided in valve rod 5
Step-like gas passage 51, entire valve rod 5 is as the high pressure gas of connection air inlet 101 and the gas passage of guide's valve chamber.
The cooperation with valve port is disengaged because main valve plug 2 will receive the gas top-pressure in outlet chamber 104,2 meeting of main valve plug
Acted with ovable valve stem 5 along the compressing and stretching direction of main spool spring 17, thus be provided in valve port the movement to valve rod 5 into
The guide holder 4 of row guide support.
As advanced optimizing for above embodiment, guide holder 4 includes an annulus as main body, in annulus
The heart offers the through-hole being pierced by for valve rod 5, is provided in through-hole and acts the guide sleeve 42 being oriented to valve rod 5, and valve rod 5 is worn
It is located in guide sleeve 42.And the axis on annulus around guide sleeve 42 is evenly equipped with multiple ventilative through holes 41, can increase gas
The flow of circulation.
It is larger with one in guide valve blocks 13 including the guide valve blocks 13 as guide's valve body for pilot valve
Space, be respectively arranged with above space adjusting rod 16 and by adjusting rod 16 press guide's valve spring 14, pilot valve bullet
The top and bottom of spring 14 are respectively arranged with upper spring seat 15 and lower spring cup 11 to its conscientious fixation.In lower spring cup 11
Lower section is provided with pilot valve control chamber 12, and downstream pressure adjustment structure is provided in guide's valve chamber.
As a kind of embodiment of optimization, in this example using the diaphragm 10 pressed by guide's valve spring 14 as valve
Pressure adjustment structure afterwards, the bottom of guide valve blocks 13 are provided with the guide's valve seat 8 being adapted to it, and guide's valve seat 8 is close to pilot valve
The side of spring 14 is provided with the circular pit to invaginate in one, this circular pit and diaphragm 10 have cooperatively formed pilot valve control
Chamber 12 processed, and the pilot valve 9 being plugged in guide's valve seat 8 is pressed on the lower surface of diaphragm 10.By adjusting adjusting rod
16 position can deform to make guide's valve spring 14 carry out pushing tow diaphragm 10, to realize the variation of 12 volume of pilot valve control chamber
It pushes pilot valve 9 to act with diaphragm 10, so that pilot valve 9 is detached from cooperation with valve port in guide's valve seat 8 and entered with supplied gas
In pilot valve control chamber 12.The stomata for being connected to valve rod 5 is offered in pilot valve 9, and gas can be made from wherein leading to
It crosses hence into pilot valve control chamber 12.
In order to realize that the high pressure gas that will go into pilot valve control chamber 12 controls opening and closing element as control gas
It acts, is provided with the pilot valve passage being made of connected pathways 81 and circular passage 82,81 edge of connected pathways in first guide valve seat 8
In angularly disposed first guide valve seat 8, the side of connected pathways 81 and pilot valve control chamber 12 through setting, connected pathways 81 it is another
Setting is run through in side and the circular passage 82 that first 8 end face of guide valve seat is arranged.High pressure gas can be logical from pilot valve control chamber 12
Connected pathways 81 is crossed to enter in circular passage 82.
As a preferred embodiment, in this example using piston 6 as opening and closing element, piston 6 and main valve plug 2
Area difference is larger, it is only necessary to which lesser pressure can push piston 6 to act.And 6 activity of piston is assemblied on valve rod 5,
The step as the unidirectional pushing tow structure that can cooperate with piston 6 is provided on valve rod 5.
Piston 6 is provided with opening and closing chamber 61 close to the side of pilot valve, and opening and closing chamber 61 is the space of annular, and gas, which enters, to be opened
In closed chamber 61 can ejector piston move downward.
In order to guarantee the sealing effect of pilot valve and main valve, transition seat 7, transition seat are provided between pilot valve and main valve
A sleeve is respectively arranged on 7 two end faces up and down, the gas side that goes out of valve rod 5 is extend into the sleeve of 7 lower section of transition seat, first
Guide valve core 9 is extend into the sleeve of 7 top of transition seat.Sleeve for the guiding cooperation of valve rod 5 is the first pilot hole, and for pilot valve
The sleeve of the guiding cooperation of core 9 is the second pilot hole.Valve rod 5 is connected to by transition seat 7 with pilot valve 9, to make high pressure gas
It enters in pilot valve control chamber 12.In order to enter high pressure gas in the opening and closing chamber 61 of piston 6, it is arranged in transition seat 7
There is the transition seat channel 71 being connected to circular passage 82, realize circular passage 82 and opens and closes the connection of chamber 61.
In the work of guide's pressure reducing valve, the position of adjusting rod 16 is first adjusted, adjusting rod 16 is made to carry out the deformation of pushing tow diaphragm 10, because
Deformation has occurred for diaphragm 10, and change the volume of pilot valve control chamber 12, and 10 pushing tow of diaphragm pilot valve
Core 9 moves downward, and pilot valve 9 makes to produce supplied gas circulation at the valve port of pilot valve departing from the cooperation with guide's valve seat 8
Space.Then the air inlet of main valve 101 is connected into high-pressure air source, high pressure gas enters inlet plenum by air inlet 101
In 103, main valve plug is in close state at this time, and high pressure gas can not enter 104 in outlet chamber room from the valve port of main valve seat 3
It is interior.And high pressure gas is entered in blanking cover 18 by the gap between blanking cover 18 and main valve plug 2, the inner space of blanking cover 18 and valve
The air inlet side of bar 5 is connected to, and high pressure gas enters in transition seat 7 from the gas passage 51 in valve rod 5, because valve rod 5 is without straight
It connects and is connect with pilot valve 9, high pressure gas is collected at the gas side that goes out of valve rod 5, and the stomata by opening up in pilot valve 9 enters
To at the valve port of pilot valve.
Cooperate because 10 pushing tow pilot valve 9 of diaphragm is detached from guide's valve seat 8, high pressure gas can be from the valve port of pilot valve
In enter in pilot valve control chamber 12, high pressure gas is entered after gathering in pilot valve control chamber 12 by connected pathways 81
In circular passage 82, circular passage 82 is connected to transition seat channel 71, the opening and closing chamber 61 for having entered high pressure gas in piston 6
It is interior.High pressure gas generates a pressure to the inner surface in opening and closing chamber 61, to bottom offset after making piston 6 be under pressure, because of valve
Bar 5 and the activity of piston 6 cooperate, and piston 6 is limited by 5 top bar of valve rod, and band ovable valve stem 5 is to bottom offset.Valve rod 5 and main valve plug
There is Stop structure between 2, valve rod 5 drives main valve plug 2 to be detached from the cooperation with main valve seat 3, allows gas to enough through guide holder 4
In ventilative through hole 41 realize by inlet plenum 103 to the movement of outlet chamber 104.
In gas is from air inlet 101 to the motion process of gas outlet 102, to the opening and closing chamber 61 of piston 6 generate one to
Under directed force F 1, balancing pressure-bearing side in the lower end surface of piston 6 is influenced by air pressure in outlet chamber 104, to piston
6 generate the F2 that upwards pressure, and main spool spring 17 generates a upward power F3, while valve rod 5 to valve rod 5 and main valve plug 2
And the upward power F4 that main valve plug 2 is generated by air pressure in inlet plenum 103, when 6 stress balance of piston, it is established that flat
Weigh formula: F1=F2+F3+F4.
When the pressure in outlet chamber 104 be less than be formed by by 16 pushing tow diaphragm 10 of adjusting rod limit pressure when, piston 6
Suffered downward power F1 due to the setting of pilot valve and it is constant, but piston 6 can be changed by upward power F2, to make to put down
Weighing apparatus condition changes, and F1 > F2+F3+F4, piston 6 can move down, so that valve rod 5 be pushed to move down, and matches with valve rod 5
The drive that the main valve plug 2 of conjunction will receive valve rod 5 moves down, and the restriction between main valve plug 2 and the valve port of main valve can become at this time
Greatly, enter more gases in outlet chamber 104 from inlet plenum 103, because gas flow increases, to make gas outlet
Pressure value at 102 is gone up, and piston 6 can be changed by upward power, to reach the equilibrium state of piston again.
When the pressure in outlet chamber 104 be greater than be formed by by 16 pushing tow diaphragm 10 of adjusting rod limit pressure when, piston 6
The F2 that upwarded pressure can become larger, and piston F1 subject to downward force is constant, and the state of piston stress balance is broken again,
Its stress condition just will become F1 < F2+F3+F4, and piston 6 moves up, the restriction between main valve plug 2 and the valve port of main valve
It can become smaller, the gas output of air inlet 101 be reduced, to ensure that the pressure reduction at gas outlet 102.
In other embodiments, the arrangement form of gas passage may be replaced by other forms: for example directly in main valve
It is provided with the conduit of connection guide's valve chamber and air inlet in core, and no longer matches in the spool of the air inlet side and pilot valve that make valve rod
It closes.
In other embodiments, other forms may be replaced by the guide holder that valve rod is supported: for example in main valve
Guide sleeve with valve rod cooperation is first set at the center of the valve port of seat, is arranged on the inner wall of valve port and is supported with to guide sleeve
Support arm, gas can pass through between support arm.
In other embodiments, opening and closing element may be replaced by other forms, such as using diaphragm as adjustment valve rod
The opening and closing element of movement.
In other embodiments, can be connected directly between piston and guide's valve seat it is logical, without be used in piston and pilot valve
Transition seat is set between seat.
Above-described specific embodiment, purpose of utility model, technical scheme and beneficial effects to the utility model
It has been further described, it should be understood that the foregoing is merely specific embodiment of the present utility model, and
Be not used in the restriction protection scope of the utility model, it is all within the spirit and principles of the present invention, done any repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.
Claims (10)
1. guide's pressure reducing valve, including valve body, valve body has main valve chamber, and main valve seat and used in conjunction with is equipped in main valve chamber
Main valve plug, is equipped with air inlet and air outlet in the two sides of main valve seat on valve body, and valve body also has guide's valve chamber, sets in guide's valve chamber
There are guide's valve seat and pilot valve used in conjunction with, guide's valve chamber has the air inlet side for being located at guide's valve seat two sides and goes out
Gas side, main valve plug are equipped with valve rod, and the opening and closing element acted for driving stem to drive main valve plug to be opened, valve body are equipped in valve body
In be equipped with guide's valve chamber go out gas side be connected to for drive opening and closing element movement opening and closing chamber, it is characterised in that: it is described
Valve rod be equipped be connected to the air inlet and the air inlet side to pass through guide's valve chamber when pilot valve is opened to opening and closing chamber
Input the gas passage of gas.
2. guide's pressure reducing valve according to claim 1, it is characterised in that: be equipped in the valve body and opened along main valve plug valve rod
Close the guide holder that direction is oriented to, guide holder has a perforation passed through for valve rod, and the side on guide holder in the perforation is set
There is ventilative through hole.
3. guide's pressure reducing valve according to claim 2, it is characterised in that: the perforation on the guide holder is described by being installed in
Guide sleeve on guide holder is formed.
4. guide's pressure reducing valve according to claim 1 or 2 or 3, it is characterised in that: the opening and closing element is to be movably arranged on valve
Piston in body, is equipped with outlet chamber be connected to the gas outlet in the valve body, with towards the outlet chamber on piston
The balance pressure-bearing side of room, the opening and closing chamber are located at the piston in the side away from the balance pressure-bearing side.
5. guide's pressure reducing valve according to claim 4, it is characterised in that: be equipped between the piston and valve rod for by living
The mobile unidirectional pushing tow structure to open main valve plug of plug pushing tow valve rod.
6. guide's pressure reducing valve according to claim 4, it is characterised in that: in the piston away from described in the valve body
The side of balance pressure-bearing side, which is equipped with, is installed with transition seat, and the pilot valve and the valve rod are along valve rod moving direction and institute
Transition seat guiding cooperation is stated, the side towards the transition seat of piston is matched with the valve body, transition seat is encircled into described open
Closed chamber.
7. guide's pressure reducing valve according to claim 1 or 2 or 3, it is characterised in that: it is installed with transition seat in the valve body,
The pilot valve and the valve rod, which are oriented to along valve rod moving direction in transition seat, to be cooperated.
8. guide's pressure reducing valve according to claim 7, it is characterised in that: the transition seat is equipped with to be cooperated with stem guiding
The first pilot hole and with pilot valve guiding cooperation the second pilot hole, the first pilot hole it is corresponding with the second pilot hole is connected to.
9. guide's pressure reducing valve according to claim 8, it is characterised in that: the pilot valve is equipped with the first guiding of connection
Guide's gas channels of the air inlet side of hole and guide's valve chamber, the gas channels pass through first pilot hole and the valve rod
On gas passage connection.
10. guide's pressure reducing valve according to claim 7, it is characterised in that: the transition seat, which is equipped with, is connected to the opening and closing
The transition seat channel for going out gas side of chamber and guide's valve chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820633086.5U CN208237165U (en) | 2018-04-28 | 2018-04-28 | Guide's pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820633086.5U CN208237165U (en) | 2018-04-28 | 2018-04-28 | Guide's pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237165U true CN208237165U (en) | 2018-12-14 |
Family
ID=64581054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820633086.5U Active CN208237165U (en) | 2018-04-28 | 2018-04-28 | Guide's pressure reducing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN208237165U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506037A (en) * | 2018-12-29 | 2019-03-22 | 捷锐企业(上海)有限公司 | A kind of negative pressure regulating valve of new valve core structure |
| CN110388489A (en) * | 2019-08-29 | 2019-10-29 | 天津航宇卓然科技有限公司 | A kind of pressure reducer of integrated overpressure protection function |
| CN112797221A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot axial flow type safety valve |
| CN113638932A (en) * | 2021-07-29 | 2021-11-12 | 中国人民解放军海军工程大学 | Hydraulic control impact load transmitting valve |
| CN116181940A (en) * | 2023-04-26 | 2023-05-30 | 青岛开元阀门有限公司 | Air pressure reducing valve for ship |
-
2018
- 2018-04-28 CN CN201820633086.5U patent/CN208237165U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506037A (en) * | 2018-12-29 | 2019-03-22 | 捷锐企业(上海)有限公司 | A kind of negative pressure regulating valve of new valve core structure |
| CN110388489A (en) * | 2019-08-29 | 2019-10-29 | 天津航宇卓然科技有限公司 | A kind of pressure reducer of integrated overpressure protection function |
| CN112797221A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot axial flow type safety valve |
| CN113638932A (en) * | 2021-07-29 | 2021-11-12 | 中国人民解放军海军工程大学 | Hydraulic control impact load transmitting valve |
| CN116181940A (en) * | 2023-04-26 | 2023-05-30 | 青岛开元阀门有限公司 | Air pressure reducing valve for ship |
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