CN104527630A - Piston type pneumatic control stop valve - Google Patents
Piston type pneumatic control stop valve Download PDFInfo
- Publication number
- CN104527630A CN104527630A CN201410821490.1A CN201410821490A CN104527630A CN 104527630 A CN104527630 A CN 104527630A CN 201410821490 A CN201410821490 A CN 201410821490A CN 104527630 A CN104527630 A CN 104527630A
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- China
- Prior art keywords
- valve
- piston
- port
- valve body
- type pneumatic
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- 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.)
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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 piston type pneumatic control stop valve. A valve is arranged at an air inlet, and an air inlet and outlet connecting hole is formed between the air inlet and an air outlet. A piston is arranged from the inside of a control port to an inner cavity of a valve body of the valve, and the air inlet and the air outlet are communicated through the air inlet and outlet connecting hole in the state that one end of the piston is tightly attached to the control port, and the end face of the other end of the piston is used for closing an air inlet valve port in the air inlet through the valve in the state that the piston is far away from the control port to the limit. According to the technical scheme, the appearance of the entire product is greatly decreased, and the weight is lowered; mounting and connecting are more reliable; the air pressure of the control air port acts on a fixed section, and thus the pressure value of the valve is constant no matter whether the valve is turned on or off; hence, the fixed pressure value of the control port can be directly used for controlling a gearbox interrupted valve to be turned on or off; the piston type pneumatic control stop valve simplifies the product structure, shortens the production period, improves the productivity and performance of the product and lowers the production cost.
Description
Technical field
The invention belongs to the technical field of braking system of engineering machinery.More specifically, the present invention relates to a kind of piston type pneumatic control shutoff valve.
Background technology
Gas control shutoff valve main composition of the prior art as shown in Figure 1, is connected in pipeline by the connection structure of admission port and air extractor duct.
Static position relation: tip-lever support 2, valve piston 3, diaphragm 4, diaphragm clamping plate 5, nut 6 connect into valve piston assembly; Valve 7 is fixed by spring 8, inlet suction port 10; Inlet suction port 10 and lower house 9 are screwed by screw thread.Upper shell 1 is connected by bolt 11 with lower house 9.
Dynamic position relation (i.e. principle of work): control gas port air inlet, when air pressure reaches certain value, diaphragm 4 bend tension; But this value can not be fixed.Valve piston assembly moves down, and backs down valve 7; Close air intake valve, air extractor duct air pressure flows to exhausr port simultaneously; Reduce and control gas port air pressure, diaphragm 4 sets back, and valve piston assembly moves, and valve 7 under the effect of spring 8, return moves, and opens intake valve port, and close air extractor duct and exhaust port passageways, the air pressure of admission port flows to air extractor duct again simultaneously.
Above-described gas control shutoff valve of the prior art adopts the structure of diaphragm type, and form piston, its oad is larger; The air pressure controlling mouth acts on diaphragm, and the bearing area of diaphragm is in continuous change, and the force value causing valve port to open is not fixed; Make prior art gas control shutoff valve must and switch valve coupling, the opening and closing of change speed gear box valve out of stock could be controlled.
Summary of the invention
The invention provides a kind of piston type pneumatic control shutoff valve, its objective is that namely valve port opens and closes when controlling mouth atmospheric pressure value and reaching steady state value.
To achieve these goals, the technical scheme that the present invention takes is:
Piston type pneumatic control shutoff valve of the present invention, comprises valve body, admission port, air extractor duct, exhausr port and control mouth, in described admission port, arranges valve; Between described admission port and air extractor duct, if air inlet/outlet connecting bore; In described control mouth, piston is set to the body cavity of described valve; Under the state be adjacent to control mouth in one end of described piston, described admission port is communicated with by air inlet/outlet connecting bore with air extractor duct; Described piston is away from control mouth under the state of the limit, and the admission port valve port in admission port is closed by valve by the end face of the other end of described piston.
Described piston be provided with the air extractor vent with its dead in line, and to be communicated with exhausr port by transverse holes; Described piston is also provided with the aperture be communicated with described air extractor vent; Under the state that described piston and control mouth are adjacent to, described air extractor duct is communicated with described exhausr port by air inlet/outlet connecting bore, aperture, air extractor vent and transverse holes.
Described valve body is provided with two valve body mounting holes, and described valve body is arranged on vehicle chassis by described valve body mounting hole.
The specification of described valve body mounting hole is Φ 7.5mm.
Described control mouth is located at and controls on joint, and described control joint is fixedly connected with described valve body by helicitic texture.
Described control joint and valve body are sealed by O-ring seals.
Described admission port is located on inlet suction port, and described inlet suction port is fixedly connected with described valve body by helicitic texture.
Described inlet suction port and valve body are sealed by O-ring seals.
In the chamber of described valve body, be provided with pull back spring, the elastic force direction of described pull back spring is that described piston is adjacent to control mouth.
In the chamber of described valve body, be provided with valve spring, the elastic force direction of described pull back spring makes described valve shutoff admission port and the path of exhausr port.
The present invention adopts technique scheme, whole product design is reduced greatly, expendable weight; Valve body is arranged on vehicle chassis by two Φ 7.5 holes, and it is more reliable that it installs connection; Especially the present invention adopts piston type, controls gas port gas pressure on fixing cross section, so the force value of valve open and closedown is constant; Therefore, can directly utilize control mouth fixation pressure value to control the opening and closing of change speed gear box valve out of stock; This invention simplifies product structure, shorten the production cycle, improve production capacity and the performance of product, reduce productive costs.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
Fig. 1 is gas control shutoff valve structural representation of the prior art;
Being labeled as in Fig. 1:
1, 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 structural representation of the present invention;
Being labeled as in Fig. 2:
1, joint is controlled, 2, O-ring seals, 3, piston, 4, O-ring seals, 5, pull back 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 connecting bore, 14, aperture, 15, air extractor vent, 16, transverse holes, 17, admission port valve port.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
Structure of the present invention as shown in Figure 2, is a kind of piston type pneumatic control shutoff valve, comprises valve body 7, admission port, air extractor duct, exhausr port and control mouth, in described admission port, arrange valve 8; Between described admission port and air extractor duct, if air inlet/outlet connecting bore 13.
In order to solve prior art Problems existing and overcome its defect, realize when controlling mouth atmospheric pressure value and reaching steady state value, the goal of the invention that namely valve port opens and closes, the technical scheme that the present invention takes is:
As shown in Figure 2, piston type pneumatic control shutoff valve of the present invention, arranges piston 3 in described control mouth to valve body 7 inner chamber of described valve 8; Under the state be adjacent to control mouth in one end of described piston 3, described admission port is communicated with by air inlet/outlet connecting bore 13 with air extractor duct; Described piston 3 is away from control mouth under the state of the limit, and the admission port valve port 17 in admission port is closed by valve 8 by the end face of the other end of described piston 3.
Piston 3 realizes sealing with valve body 7 respectively by O-ring seals 4 and O-ring seals 6.
Gas control shutoff valve of the prior art and switch valve coupling control the opening and closing of change speed gear box valve out of stock, and gas control shutoff valve of the present invention structure of the present invention is piston type, control gas port gas pressure on fixing cross section, so the force value of valve open and closedown is fixing, directly can utilizes and control mouth fixation pressure value to control the opening and closing of change speed gear box valve out of stock.This invention simplifies product structure, whole product design reduces greatly, and expendable weight shortens the production cycle; Improve production capacity and the performance of product, reduce productive costs.
Described piston 3 be provided with the air extractor vent 15 with its dead in line, and to be communicated with exhausr port by transverse holes 16; Described piston 3 is also provided with the aperture 14 be communicated with described air extractor vent 15; Under the state that described piston 3 and control mouth are adjacent to, described air extractor duct is communicated with described exhausr port by air inlet/outlet connecting bore 13, aperture 14, air extractor vent 15 and transverse holes 16.
Described valve body 7 is provided with two valve body mounting holes 12, and described valve body 7 is arranged on vehicle chassis by described valve body mounting hole 12.The specification of described valve body mounting hole 12 is Φ 7.5mm.Namely described gas control shutoff valve is connected on vehicle chassis by 2-φ 7.5.
Described control mouth is located at and controls on joint 1, and described control joint 1 is fixedly connected with described valve body 7 by helicitic texture.
Described control joint 1 is sealed by O-ring seals 2 with valve body 7.
Described admission port is located on inlet suction port 11, and described inlet suction port 11 is fixedly connected with described valve body 7 by helicitic texture.
Described inlet suction port 11 is sealed by O-ring seals 10 with valve body 7.
In the chamber of described valve body 7, be provided with pull back spring 5, the elastic force direction of described pull back spring 5 is that described piston 3 is adjacent to control mouth.
In the chamber of described valve body 7, be provided with valve spring 9, the elastic force direction of described pull back spring 5 makes described valve 8 shutoff admission port and the path of exhausr port.
Static position relation of the present invention:
Control joint 1 to be screwed by screw thread with valve body 7, and sealed by O-ring seals 2; Piston 3 is sealed with valve body 7 by O-ring seals 4, O-ring seals 6; Inlet suction port 11 and valve body 7 are screwed by screw thread, and are sealed by O-ring seals 10; Valve 8 is fixed in the chamber of valve body 7 by valve spring 9, inlet suction port 11.
Dynamic position relation (i.e. principle of work):
Control gas port air inlet, when air pressure reaches fixed value, piston 3 overcomes the elastic force of pull back spring 5 and moves down; After have passed through a bit of miles of relative movement, overcome the elastic force of valve spring 9, back down valve 8, close intake valve port simultaneously, close the passage of admission port and air extractor duct, air extractor duct air pressure flows to exhausr port;
Reduce and control gas port air pressure, piston 3 under the effect of pull back spring 5 on move, simultaneously valve 8 under the elastic force effect of valve spring 9 on move, open intake valve port, open the passage of admission port and air extractor duct, close air extractor duct and exhaust port passageways, the air pressure of admission port flows to air extractor duct simultaneously.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. a piston type pneumatic control shutoff valve, comprises valve body (7), admission port, air extractor duct, exhausr port and control mouth, in described admission port, arranges valve (8); Between described admission port and air extractor duct, if air inlet/outlet connecting bore (13);
It is characterized in that:
In described control mouth, piston (3) is set to valve body (7) inner chamber of described valve (8); Under the state be adjacent to control mouth in one end of described piston (3), described admission port and air extractor duct are communicated with by air inlet/outlet connecting bore (13); Described piston (3) is away from control mouth under the state of the limit, and the admission port valve port (17) in admission port is closed by valve (8) by the end face of the other end of described piston (3).
2. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: being provided with and the air extractor vent of its dead in line (15) of described piston (3), and be communicated with exhausr port by transverse holes (16); Described piston (3) is also provided with the aperture (14) be communicated with described air extractor vent (15); Under the state that described piston (3) and control mouth are adjacent to, described air extractor duct is communicated with described exhausr port by air inlet/outlet connecting bore (13), aperture (14), air extractor vent (15) and transverse holes (16).
3. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: described valve body (7) is provided with two valve body mounting holes (12), described valve body (7) is arranged on vehicle chassis by described valve body mounting hole (12).
4. according to piston type pneumatic control shutoff valve according to claim 3, it is characterized in that: the specification of described valve body mounting hole (12) is Φ 7.5mm.
5. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: described control mouth is located at and controls on joint (1), and described control joint (1) is fixedly connected with described valve body (7) by helicitic texture.
6. according to piston type pneumatic control shutoff valve according to claim 5, it is characterized in that: described control joint (1) and valve body (7) are sealed by O-ring seals (2).
7. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: described admission port is located on inlet suction port (11), described inlet suction port (11) is fixedly connected with described valve body (7) by helicitic texture.
8. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: described inlet suction port (11) and valve body (7) are sealed by O-ring seals (10).
9. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: in the chamber of described valve body (7), be provided with pull back spring (5), the elastic force direction of described pull back spring (5) is that described piston (3) is adjacent to control mouth.
10. according to piston type pneumatic control shutoff valve according to claim 1, it is characterized in that: in the chamber of described valve body (7), be provided with valve spring (9), the elastic force direction of described pull back spring (5) makes described valve (8) shutoff admission port and the path of exhausr port.
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 true CN104527630A (en) | 2015-04-22 |
| CN104527630B CN104527630B (en) | 2018-01-30 |
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| 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 |
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| Country | Link |
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| CN (1) | CN104527630B (en) |
Cited By (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 |
| CN113118799A (en) * | 2021-03-24 | 2021-07-16 | 广州市昊志机电股份有限公司 | Workpiece clamping device and machine tool |
-
2014
- 2014-12-24 CN CN201410821490.1A patent/CN104527630B/en active Active
Cited By (5)
| 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 |
| CN113118799A (en) * | 2021-03-24 | 2021-07-16 | 广州市昊志机电股份有限公司 | Workpiece clamping device and machine tool |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104527630B (en) | 2018-01-30 |
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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 |