CN104527630B - A kind of piston type pneumatic control stop valve - Google Patents
A kind of piston type pneumatic control stop valve Download PDFInfo
- Publication number
- CN104527630B CN104527630B CN201410821490.1A CN201410821490A CN104527630B CN 104527630 B CN104527630 B CN 104527630B CN 201410821490 A CN201410821490 A CN 201410821490A CN 104527630 B CN104527630 B CN 104527630B
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- Prior art keywords
- air inlet
- valve
- piston
- valve body
- control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1226—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston the fluid circulating through the piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of piston type pneumatic control stop valve, in air inlet, sets valve；Between air inlet and gas outlet, if air inlet/outlet connecting hole；Piston is set into the body cavity of valve in control mouth；In the state of being adjacent in one end of piston and control mouth, air inlet is connected with gas outlet by air inlet/outlet connecting hole；In the state of piston is away from control mouth to the limit, the air inlet valve port in air inlet is closed by valve in the end face of the other end of piston.Using above-mentioned technical proposal, whole product design is greatly reduced, mitigate weight；It is more reliable that it installs connection；Gas port gas pressure is controlled on fixed section, so the pressure value that valve opens and closes is constant；Therefore, the opening and closing of gearbox valve out of stock can be directly controlled using control mouth fixation pressure value；This invention simplifies product structure, shortens the production cycle, improves the production capacity and performance of product, reduces production cost.
Description
Technical field
The invention belongs to the technical field of braking system of engineering machinery.A kind of more particularly it relates to piston type pneumatic
Control stop valve.
Background technology
Gas control shutoff valve main composition of the prior art is as shown in figure 1, pass through air inlet and the attachment structure of gas outlet
It is connected in pipeline.
Static position relation：Tip-lever support 2, valve piston 3, diaphragm 4, diaphragm clamping plate 5, nut 6 connect into valve piston assembly；Valve
Door 7 is fixed by spring 8, inlet suction port 10；Inlet suction port 10 is screwed with lower house 9 by screw thread.Upper shell 1 and lower house 9
Connected by bolt 11.
Dynamic position relation (i.e. operation principle)：Control gas port air inlet, when air pressure reaches certain value, the bend tension of diaphragm 4；
But the value can not fix.Valve piston assembly moves down, top valve opening door 7；Simultaneously close off air intake valve, gas outlet air pressure flow direction row
Gas port；Control gas port air pressure is reduced, diaphragm 4 sets back, and valve piston assembly moves up, and valve 7 is in the presence of spring 8 on return
Move, open intake valve port, simultaneously close off gas outlet and exhaust port passageways, the air pressure of air inlet flows to gas outlet again.
Above-described gas control shutoff valve of the prior art uses the structure of diaphragm type, forms piston, its appearance and size
It is bigger；The air pressure of control mouth is acted on diaphragm, and the bearing area of diaphragm is constantly changing, the pressure for causing valve port to open
Value is not fixed；So that the gas control shutoff valve of prior art must be combined with switch valve, the opening and closing of gearbox valve out of stock could be controlled.
The content of the invention
The present invention provides a kind of piston type pneumatic control stop valve, the purpose is to when control mouth atmospheric pressure value reaches steady state value, valve
Mouth opens and closes.
To achieve these goals, the technical scheme taken of the present invention is：
The piston type pneumatic control stop valve of the present invention, including valve body, air inlet, gas outlet, exhaust outlet and control mouth, described
Air inlet in, set valve；Between described air inlet and gas outlet, if air inlet/outlet connecting hole；In described control mouth
Piston is set in the body cavity of interior to described valve；In the state of being adjacent in one end of described piston and control mouth, institute
The air inlet stated is connected with gas outlet by air inlet/outlet connecting hole；In the state of described piston is away from control mouth to the limit,
The air inlet valve port in air inlet is closed by valve the end face of the other end of described piston.
Described piston connects provided with the passage overlapped with its axis, and by transverse holes with exhaust outlet；Institute
The aperture connected with described passage is additionally provided with the piston stated；In described piston and control mouth away from the state of, institute
The gas outlet stated is connected by air inlet/outlet connecting hole, aperture, passage and transverse holes with described exhaust outlet.
Described valve body is provided with two valve body mounting holes, and described valve body is arranged on car by described valve body mounting hole
On chassis.
The specification of described valve body mounting hole is Φ 7.5mm.
Described control mouth is located in control joint, and described control joint is fixed by helicitic texture and described valve body
Connection.
Described control joint is sealed with valve body by O-ring seals.
Described air inlet is located on inlet suction port, and described inlet suction port is fixed by helicitic texture and described valve body
Connection.
Described inlet suction port is sealed with valve body by O-ring seals.
The intracavitary of described valve body, provided with return spring, the elastic force direction of described return spring is to make described piston
It is adjacent to control mouth.
The intracavitary of described valve body, provided with valve spring, the elastic force direction of described valve spring is to make described valve
Block the path of air inlet and exhaust outlet.
The present invention uses above-mentioned technical proposal, greatly reduces whole product design, mitigates weight；Valve body is by two Φ
7.5 holes are arranged on vehicle chassis, and it is more reliable that it installs connection；Especially the present invention uses piston type, controls gas port gas pressure
On fixed section, so the pressure value that valve opens and closes is constant；Therefore, pressure directly can be fixed using control mouth
Force value controls the opening and closing of gearbox valve out of stock；This invention simplifies product structure, shortens the production cycle, improves product
Production capacity and performance, reduce production cost.
Brief description of the drawings
The content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described below：
Fig. 1 is gas control shutoff valve structural representation of the prior art；
Mark in Fig. 1 for：
1st, upper shell, 2, tip-lever support, 3, valve piston, 4, diaphragm, 5, diaphragm clamping plate, 6, nut, 7, valve, 8, spring, 9,
Lower house, 10, inlet suction port, 11, bolt.
Fig. 2 is the structural representation of the present invention；
Mark in Fig. 2 for：
1st, control joint, 2, O-ring seals, 3, piston, 4, O-ring seals, 5, return spring, 6, O-ring seals, 7, valve
Body, 8, valve, 9, valve spring, 10, O-ring seals, 11, inlet suction port, 12, valve body mounting hole, 13, air inlet/outlet connection
Hole, 14, aperture, 15, passage, 16, transverse holes, 17, air inlet valve port.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical scheme
Solution.
The structure of the present invention as shown in Figure 2, is a kind of piston type pneumatic control stop valve, including valve body 7, air inlet, gas outlet,
Exhaust outlet and control mouth, in described air inlet, valve 8 is set；Between described air inlet and gas outlet, if air inlet/outlet
Connecting hole 13.
In order to solve the problems, such as that prior art exists and overcomes its defect, realize when control mouth atmospheric pressure value reaches steady state value
When, valve port is the goal of the invention opened and closed, and the technical scheme that the present invention takes is：
As shown in Fig. 2 the piston type pneumatic control stop valve of the present invention, to the valve of described valve 8 in described control mouth
Piston 3 is set in the inner chamber of body 7；In the state of being adjacent in one end of described piston 3 and control mouth, described air inlet and outlet
Mouth is connected by air inlet/outlet connecting hole 13；In the state of described piston 3 is away from control mouth to the limit, described piston 3
The air inlet valve port 17 in air inlet is closed by valve 8 end face of the other end.
Piston 3 is realized with valve body 7 by O-ring seals 4 and O-ring seals 6 seal respectively.
Gas control shutoff valve and switch valve of the prior art combination control the opening and closing of gearbox valve out of stock, and the present invention
Gas control shutoff valve the present invention structure be piston type, control gas port gas pressure on fixed section, so valve open and
The pressure value of closing is fixed, and the opening and closing of gearbox valve out of stock can be directly controlled using control mouth fixation pressure value.This hair
Bright to simplify product structure, whole product design greatly reduces, and mitigates weight, shortens the production cycle；Improve the production of product
Energy and performance, reduce production cost.
Described piston 3 provided with the passage 15 overlapped with its axis, and connected by transverse holes 16 with exhaust outlet；
The aperture 14 connected with described passage 15 is additionally provided with described piston 3；It is remote in described piston 3 and control mouth
Under state, described gas outlet passes through air inlet/outlet connecting hole 13, aperture 14, passage 15 and transverse holes 16 and described exhaust
Mouth connection.
Described valve body 7 is provided with two valve body mounting holes 12, and described valve body 7 is pacified by described valve body mounting hole 12
On vehicle chassis.The specification of described valve body mounting hole 12 is Φ 7.5mm.I.e. described gas control shutoff valve passes through 2- φ
7.5 are connected on vehicle chassis.
Described control mouth is located in control joint 1, and described control joint 1 passes through helicitic texture and described valve body 7
It is fixedly connected.
Described control joint 1 is sealed with valve body 7 by O-ring seals 2.
Described air inlet is located on inlet suction port 11, and described inlet suction port 11 passes through helicitic texture and described valve body
7 are fixedly connected.
Described inlet suction port 11 is sealed with valve body 7 by O-ring seals 10.
The intracavitary of described valve body 7, provided with return spring 5, the elastic force direction of described return spring 5 is to make described work
Plug 3 is adjacent to control mouth.
The intracavitary of described valve body 7, provided with valve spring 9, the elastic force direction of described valve spring 9 is to make described valve
Door 8 blocks the path of air inlet and exhaust outlet.
The static position relation of the present invention：
Control joint 1 is screwed with valve body 7 by screw thread, and is sealed by O-ring seals 2；Piston 3 is by O-ring seals 4, O
Shape sealing ring 6 seals with valve body 7；Inlet suction port 11 is screwed with valve body 7 by screw thread, and is sealed by O-ring seals 10；Valve
8 are fixed on the intracavitary of valve body 7 by valve spring 9, inlet suction port 11.
Dynamic position relation (i.e. operation principle)：
Gas port air inlet is controlled, when air pressure reaches fixed value, piston 3 overcomes the elastic force of return spring 5 and moved down；Passing through
After a bit of displacement, overcome the elastic force of valve spring 9, top valve opening door 8, simultaneously close off intake valve port, close air inlet
Mouth and the passage of gas outlet, gas outlet air pressure flow to exhaust outlet；
Control gas port air pressure is reduced, piston 3 moves up in the presence of return spring 5, while valve 8 is in valve spring 9
Moved up under elastic force effect, open intake valve port, opened air inlet and the passage of gas outlet, simultaneously close off gas outlet and exhaust outlet
Passage, the air pressure of air inlet flow to gas outlet.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (1)
1. a kind of piston type pneumatic control stop valve, including valve body (7), air inlet, gas outlet, exhaust outlet and control mouth, described
In air inlet, valve (8) is set；Between described air inlet and gas outlet, if air inlet/outlet connecting hole (13)；
It is characterized in that：
Piston (3) is set in described control mouth into valve body (7) inner chamber of described valve (8)；In described piston (3)
One end and control mouth be adjacent in the state of, described air inlet is connected with gas outlet by air inlet/outlet connecting hole (13)；Institute
For the piston (3) stated away from the state of control mouth to the limit, the end face of the other end of described piston (3) will by valve (8)
Air inlet valve port (17) closing in air inlet；
Described piston (3) is provided with the passage (15) overlapped with its axis, and is connected by transverse holes (16) with exhaust outlet；
The aperture (14) connected with described passage (15) is additionally provided with described piston (3)；In described piston (3) and control
For mouth away from the state of, described gas outlet passes through air inlet/outlet connecting hole (13), aperture (14), passage (15) and transverse holes
(16) connected with described exhaust outlet；
Described valve body (7) is provided with two valve body mounting holes (12), and described valve body (7) passes through described valve body mounting hole
(12) it is arranged on vehicle chassis；
The specification of described valve body mounting hole (12) is Φ 7.5mm；
Described control mouth is located in control joint (1), and described control joint (1) passes through helicitic texture and described valve body
(7) it is fixedly connected；
Described control joint (1) is sealed with valve body (7) by O-ring seals (2)；
Described air inlet is located on inlet suction port (11), and described inlet suction port (11) passes through helicitic texture and described valve body
(7) it is fixedly connected；
Described inlet suction port (11) is sealed with valve body (7) by O-ring seals (10)；
The intracavitary of described valve body (7), provided with return spring (5), the elastic force direction of described return spring (5) makes described
Piston (3) is adjacent to control mouth；
The intracavitary of described valve body (7), provided with valve spring (9), the elastic force direction of described valve spring (9) makes described
Valve (8) blocks the path of air inlet and exhaust outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821490.1A CN104527630B (en) | 2014-12-24 | 2014-12-24 | A kind of piston type pneumatic control stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410821490.1A CN104527630B (en) | 2014-12-24 | 2014-12-24 | A kind of piston type pneumatic control stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527630A CN104527630A (en) | 2015-04-22 |
| CN104527630B true CN104527630B (en) | 2018-01-30 |
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ID=52843346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410821490.1A Active CN104527630B (en) | 2014-12-24 | 2014-12-24 | A kind of piston type pneumatic control stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527630B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600057A (en) * | 2017-09-25 | 2018-01-19 | 瑞立集团瑞安汽车零部件有限公司 | A kind of piston type pneumatic control valve for rail vehicle |
| CN108036088A (en) * | 2017-12-05 | 2018-05-15 | 瑞立集团瑞安汽车零部件有限公司 | Plain type pressure regulator valve |
| CN110486489A (en) * | 2019-08-01 | 2019-11-22 | 海瑞恩自动化科技（昆山）有限公司 | A kind of gas control linkage valve gear |
| CN113118799B (en) * | 2021-03-24 | 2022-07-26 | 广州市昊志机电股份有限公司 | Workpiece clamping device and machine tool |
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2014
- 2014-12-24 CN CN201410821490.1A patent/CN104527630B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104527630A (en) | 2015-04-22 |
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| SE01 | Entry into force of request for substantive examination | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A piston type pneumatic shut-off valve Effective date of registration: 20230526 Granted publication date: 20180130 Pledgee: Wuhu Yangzi rural commercial bank Limited by Share Ltd. Pledgor: WUHU SHENGLI TECHNOLOGY SHARES Co.,Ltd. Registration number: Y2023980041837 |