CN109780278A - Safety valve and the Pneumatic braking system for using the safety valve - Google Patents
Safety valve and the Pneumatic braking system for using the safety valve Download PDFInfo
- Publication number
- CN109780278A CN109780278A CN201711117592.5A CN201711117592A CN109780278A CN 109780278 A CN109780278 A CN 109780278A CN 201711117592 A CN201711117592 A CN 201711117592A CN 109780278 A CN109780278 A CN 109780278A
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- valve body
- valve
- safety valve
- matrix
- braking system
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- 239000011159 matrix material Substances 0.000 claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 14
- 230000006978 adaptation Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 3
- 206010020852 Hypertonia Diseases 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Abstract
The present invention relates to a kind of safety valve and use the Pneumatic braking system of the safety valve.Valve body with after the matrix close fit being adapted to, valve body installs the connection corresponding with the gas outlet on matrix of the air inlet on side, then valve body and matrix are fastened together by mounting structure, valve body makes the air inlet on valve body installation side is corresponding with the exhaust outlet on matrix to be connected to simultaneously after being fastenedly connected with matrix, it does not need to set up pipeline in the week of valve body in this way, solving the problems, such as existing safety valve, by gas circuit system pipeline caused by piping connection, structure is complicated with corresponding matrix, and the valve body of this safety valve and the matrix that is adapted to are connected to the air inlet on valve body installation side with the exhaust outlet on matrix, assembly manipulation is simple and convenient, connection is reliable, it can be suitable for the more stringent Pneumatic braking system in operating space, such as in rail vehicle braking system.
Description
Technical field
The present invention relates to a kind of safety valve and use the Pneumatic braking system of the safety valve.
Background technique
To avoid hypertonia in braking gas circuit from needing that safety valve is arranged in braking gas circuit in vehicle air braking system,
When braking hypertonia in gas circuit, pressure venting is realized decompression by safety valve opening into atmosphere.For rail vehicle braking
For safety valve in system, due to the limitation of body structure, need to minimize the size in safety valve circumferential direction.On safety valve
Air inlet and air outlet are provided with, the air inlet on existing safety valve is generally located on the side of valve body, and braking gas circuit passes through
Piping connection is on the air inlet on valve body, one as disclosed in the Chinese patent document that Authorization Notice No. is 201575191 U of CN
Kind valve, the valve include valve body and core assembly, and valve body is equipped with air inlet and air outlet, and core assembly includes spring, bullet
Spring abutment and diaphragm, diaphragm closes air inlet and air outlet under the elastic force effect of spring, when the pressure in air inlet is excessive
When air pressure overcome the active force of spring to make diaphragm is upwardly-deformed to open gas outlet, gas through gas outlet be discharged realize decompression.Valve
Body has the installation side for connecting with corresponding base mate, and the inlet, outlet on valve body is the company that valve body two sides are arranged in
Connect hole, valve body, with after the connection of corresponding matrix, connects upper gas piping by installation side on air inlet, by gas piping and
Air circuit connection on matrix thus needs that connection gas circuit is arranged between safety valve and corresponding matrix, causes air-channel system
The problem of pipeline structure complexity.
Summary of the invention
The purpose of the present invention is to provide a kind of safety valves, pass through pipeline to solve existing safety valve with corresponding matrix
Gas circuit system pipeline caused by connection the problem of structure is complicated；Meanwhile the present invention also provides a kind of gas using above-mentioned safety valve
Press braking system.
To achieve the above object, safety valve of the invention adopts the following technical scheme that
The technical solution 1 of safety valve: safety valve, including valve body and core assembly, the valve body are equipped with inlet channel and exhaust
Channel, the valve body have for by safety valve be mounted on adaptation matrix on mounting structure, valve body have for the base
Show consideration for close installation side, the inlet channel have be arranged on the installation side, for the gas outlet on the matrix being adapted to
The air inlet of corresponding connection.For valve body with after the matrix close fit being adapted to, valve body installs going out on air inlet and matrix on side
Valve body and matrix, are then fastened together by mounting structure, after valve body is fastenedly connected with matrix by the corresponding connection of port
Make the air inlet connection corresponding with the exhaust outlet on matrix on valve body installation side simultaneously, does not need to set in the circumferential direction of valve body in this way
Pipeline is set, existing safety valve is solved and is asked with corresponding matrix by the way that gas circuit system pipeline is complicated caused by piping connection
Topic, and the air inlet and base of the valve body of this safety valve and the matrix being adapted to made simultaneously on valve body installation side when being fastenedly connected
Exhaust outlet connection on body, assembly manipulation is simple and convenient, and connection is reliable, can be suitable for the more stringent air pressure system in operating space
In dynamic system, such as in rail vehicle braking system.
The technical solution 2 of safety valve is further improved on the basis of technical solution 1 of safety valve and obtains: the installation
Structure is the mounting hole being arranged on the valve body, and structure is simple, and connection can be realized by bolt, easy for installation.
The technical solution 3 of safety valve is further improved on the basis of technical solution 2 of safety valve and obtains: the valve body
Side be equipped with the connection ear that overhangs to two sides, the mounting hole setting is in the connection ear.
The technical solution 4 of safety valve is further improved on the basis of any one of technical solution 1 ~ 3 of safety valve
To: filter structure is equipped at the air inlet of the inlet channel and at the gas outlet of exhaust passage.
The technical solution 5 of safety valve is further improved on the basis of any one of technical solution 1 ~ 3 of safety valve
To: the core assembly include piston type diaphragm unit and for provide elastic force to the piston type diaphragm unit so that its
It is maintained at the elastic component of closed position.
The technical solution 6 of safety valve is further improved on the basis of technical solution 5 of safety valve and obtains: the valve body
It is equipped with for the valve chamber for piston type diaphragm unit guiding movement assembly, the middle position of the valve chamber bottom is equipped with
The land upwardly extended makes the bottom of valve chamber form annular space in the outside of land, and the inlet channel passes through the annular
Space is connected to the valve chamber, and the exhaust passage is connected to by the channel that land surrounds with valve chamber.
The technical solution 7 of safety valve is further improved on the basis of technical solution 6 of safety valve and obtains: the piston
The periphery of formula diaphragm unit is equipped with the K shape sealing ring that cooperation is slidingly sealed for the inner wall with valve chamber.
Pneumatic braking system of the invention adopts the following technical scheme that
The technical solution 1 of Pneumatic braking system: Pneumatic braking system, including braking gas circuit and the peace being arranged in braking gas circuit
Full valve, the safety valve include valve body and core assembly, and the valve body is equipped with inlet channel and exhaust passage, the valve body tool
There is the mounting structure for being mounted on safety valve on adaptation matrix, valve body has the installation side for being bonded with described matrix,
The inlet channel have be arranged on the installation side, the air inlet of the corresponding connection in the gas outlet on the matrix with adaptation
Mouthful.Valve body is with after the matrix close fit being adapted to, and valve body installs the connection corresponding with the gas outlet on matrix of the air inlet on side, so
Valve body and matrix are fastened together by mounting structure afterwards, valve body makes valve body install side simultaneously after being fastenedly connected with matrix
On air inlet connection corresponding with the exhaust outlet on matrix, do not need setting up pipeline the week of valve body in this way, solve existing
Safety valve and corresponding matrix by gas circuit system pipeline caused by piping connection structure is complicated the problem of, and this safety
The valve body of valve connects with the exhaust outlet on the air inlet and matrix of the matrix being adapted to made simultaneously on valve body installation side when being fastenedly connected
Logical, assembly manipulation is simple and convenient, and connection is reliable, can suitable for the more stringent Pneumatic braking system in operating space, such as
In rail vehicle braking system.
The technical solution 2 of Pneumatic braking system is further improved on the basis of technical solution 1 of Pneumatic braking system
To: the mounting structure is the mounting hole being arranged on the valve body, and structure is simple, and connection can be realized by bolt, installation
It is convenient.
The technical solution 3 of Pneumatic braking system is further improved on the basis of technical solution 2 of Pneumatic braking system
Arrive: the side of the valve body is equipped with the connection ear to overhang to two sides, and the mounting hole is arranged in the connection ear.
The technical solution 4 of Pneumatic braking system, on the basis of any one of technical solution 1 ~ 3 of Pneumatic braking system
Further improvement obtains: being equipped with filter structure at the air inlet of the inlet channel and at the gas outlet of exhaust passage.
The technical solution 5 of Pneumatic braking system, on the basis of any one of technical solution 1 ~ 3 of Pneumatic braking system
Further improvement obtains: the core assembly includes piston type diaphragm unit and is used to provide the piston type diaphragm unit
Elastic force maintains it in the elastic component of closed position.
The technical solution 6 of Pneumatic braking system is further improved on the basis of technical solution 5 of Pneumatic braking system
Arrive: the valve body, which is equipped with, is used for the valve chamber that the confession piston type diaphragm unit guiding movement assembles, in the valve chamber bottom
Between be equipped with the land upwardly extended at position the bottom of valve chamber made to form annular space, the inlet channel in the outside of land
It is connected to by the annular space with the valve chamber, the exhaust passage is connected to by the channel that land surrounds with valve chamber.
The technical solution 7 of Pneumatic braking system is further improved on the basis of technical solution 6 of Pneumatic braking system
To: the periphery of the piston type diaphragm unit is equipped with the K shape sealing ring for being slidingly sealed cooperation for the inner wall with valve chamber.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the safety valve in the embodiment 1 of Pneumatic braking system of the invention；
Fig. 2 is cross-sectional view of the Fig. 1 along the direction A-A；
Fig. 3 is the top view of Fig. 2；
In attached drawing: 1, upper housing screw；2, sealing ring；3, net-filter assembly；4, lower case；5, K shape sealing ring；6, piston type diaphragm
Component；7, spring；8, spring base；9, upper housing；10, bolt is adjusted；11, lead sealing；12, ball rises formula plug；13, filter disc；14, it keeps off
Circle；15, rubber mat；16, fillister head screw；17, rivet seat；41, inlet channel；42, exhaust passage.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment 1 of Pneumatic braking system of the invention, as shown in Figure 1 to Figure 3, Pneumatic braking system include braking
Gas circuit includes and safety valve, safety valve include upper housing 9, lower case 4 and core assembly.Upper housing 9 has vertically side
To a inner cavity is extended, core assembly is mounted in the inner cavity.Core assembly includes piston type diaphragm unit 6 and is used for work
Plug diaphragm unit 6 provides the elastic component that elastic force maintains it in closed position, and elastic component is spring in the present embodiment
7.Piston type diaphragm unit 6 includes piston and the seal being mounted on piston.The upper end of spring 7, which is equipped with, adjusts bolt 10,
The upper end for adjusting bolt 10 is to tighten end, and lower end is cooperated by spring base 8 and spring press.It sets and passes through at the medium position of spring
The screw thread and upper housing 9 cooperate, and lower end presses against on spring base 8 and is rotatably assorted with spring base 8.It is adjusted by tightening end rotation
Screw rod can be moved up and down relative to upper housing 9 when screw rod, so that the decrement of spring be made to be adjusted, make the unlatching of safety valve
Pressure adjustable.It adjusts and is equipped with lead sealing 11 between the upper end and upper housing 9 of bolt 10, avoid arbitrarily adjusting adjusting screw rod, improve peace
Overall coefficient.
Lower case 4 is the valve body of safety valve, and counterbore is equipped at the medium position of lower case 4, which constitutes safety valve
Valve chamber, guiding movement is assemblied in the valve chamber piston type diaphragm unit 6 along the vertical direction, for guarantee piston and valve chamber inner wall
Between leakproofness, K shape sealing ring 5, the friction between K shape sealing ring 5 and the inner wall of valve chamber are installed on the periphery of piston
Power is smaller, can reduce the pressure range of safety valve open and close.The lower end of upper housing 9 is inserted into valve chamber, while upper
Mounting hole is equipped at the periphery of shell 9,9 screw 1 of upper housing, which is inserted into mounting hole, links together upper-lower casing.
The inlet channel 41 and exhaust passage 42 of safety valve are arranged in lower case 4, and the air inlet of inlet channel 41 is set
It sets on the bottom surface of lower case 4, while being equipped with net-filter assembly on the air inlet of inlet channel 41, enter peace for filtering
Gas in full valve is arranged in the sealing ring 2 at the air inlet and improves sealing when can guarantee to connect with corresponding pipe joint
Property, the bottom surface of valve body is the installation side of valve body.The gas outlet of inlet channel 41 is arranged at the marginal position of valve chamber bottom.Into
Gas channel 41 includes horizontal segment and vertical section, and the outer end of horizontal segment is risen the closing of formula plug 12 by ball.The air inlet of exhaust passage
The center position of valve chamber bottom is set, and air inlet, that is, valve chamber bottom middle position of exhaust passage, which is equipped with, to be upwardly extended
Annular protrusion, the sealing element on piston type diaphragm unit 6 can be by the air inlet of exhaust passage after contacting with the annular protrusion
Mouth closing.Valve chamber forms annular space in its bottom by the annular protrusion, and the gas outlet setting of inlet channel is in annular sky
Between bottom on, be connected to by the annular space with valve chamber, the channel that the exhaust outlet of exhaust passage is surrounded by annular space with
Valve chamber connection.Seal uses rubber seal, makes to form soft seal knot between piston type diaphragm unit 6 and lower case 4 in this way
Structure guarantees good sealing performance under lesser resilient force.The side of lower case 4 is arranged in the gas outlet of exhaust passage
On, while filter disc 13 is equipped at the gas outlet, filter disc 13 is fixed by retaining ring 14, and the impurity in external environment is avoided to enter
To pollute safety valve in exhaust passage.The gas outlet of inlet channel 41, which is arranged at the outer ledge position of valve chamber, to be increased
The active area of gas pressure and piston type diaphragm unit 6 in big inlet channel, to improve the air pressure in braking gas circuit
Active force.
The left and right sides of lower case 4 is symmetrically arranged with two connection ears, mounting hole is equipped in two connection ears, when this
It is when air circuit connection on safety valve and related device, the air inlet of 4 upper bottom portion of lower case is corresponding with the interface on device, under making
The bottom surface of shell 4 and the joint face of device are fitted and connected, and finally pass through two mounting holes for lower case 4 and device with attachment screw
It is fastened together.Since the air inlet of inlet channel to be arranged in the bottom position of lower case 4, while board-like company is used again
Binding structure, so that safety valve does not need setting in connection is arranged connecting line in its circumferential direction, valve body is fastenedly connected with matrix
Make the air inlet connection corresponding with the exhaust outlet on matrix on valve body installation side simultaneously afterwards, is not needed in the circumferential direction of valve body in this way
Pipeline is set, it is complicated by gas circuit system pipeline caused by piping connection with corresponding matrix to solve existing safety valve
Problem；And the valve body of this safety valve and the air inlet of the matrix that is adapted to made simultaneously on valve body installation side when being fastenedly connected with
Exhaust outlet connection on matrix, assembly manipulation is simple and convenient, and connection is reliable, can be suitable for the more stringent air pressure in operating space
In braking system, such as in rail vehicle braking system.
Meanwhile this safety valve is direct dynamic structure, the pressure in inlet channel directly matches with the elastic force of spring, makes to pacify
The adjustment of the cracking pressure of full valve is more accurate.And inlet channel and exhaust passage setting are made into safety valve knot in lower case
Structure is simple, and the processing of lower case, assembly process process are good, easy to maintenance.
Screw is arranged in the present embodiment in the embodiment 2 of Pneumatic braking system of the invention in lower case, when installation
It is directly connected by screw with corresponding device, other are same as Example 1, repeat no more.
Four engaging lugs are arranged in the present embodiment in the embodiment 3 of Pneumatic braking system of the invention in lower case
Portion is respectively provided with mounting hole, the in this way fastness of enhancing lower case connection in each connection ear, other are same as Example 1, no
It repeats again.
The embodiment 4 of Pneumatic braking system of the invention, in the present embodiment, the gas outlet of inlet channel are arranged in valve chamber
Medium position at, the air inlet of exhaust passage be arranged in valve chamber by proximal edge position at, other are same as Example 1, no
It repeats again.
The embodiment 5 of Pneumatic braking system of the invention, in the present embodiment, lower case are set as cylindrical, other with
Embodiment 1 is identical, repeats no more.
The embodiment 6 of Pneumatic braking system of the invention, in the present embodiment, the sealing ring being arranged on the periphery of piston is
O-ring seals, other are same as Example 1, repeat no more.
Safety valve in the embodiment of the embodiment of safety valve of the invention, the safety valve and above-mentioned Pneumatic braking system
Structure it is identical, repeat no more.
Claims (10)
1. safety valve, including valve body and core assembly, the valve body is equipped with inlet channel and exhaust passage, it is characterised in that:
The valve body has the mounting structure for being mounted on safety valve on adaptation matrix, and valve body has for being bonded with described matrix
Installation side, the inlet channel have be arranged on the installation side, the gas outlet on the matrix with adaptation it is corresponding company
Logical air inlet.
2. safety valve according to claim 1, it is characterised in that: the mounting structure is the peace being arranged on the valve body
Fill hole.
3. safety valve according to claim 2, it is characterised in that: the side of the valve body is equipped with the company to overhang to two sides
Lug portion, the mounting hole are arranged in the connection ear.
4. safety valve described according to claim 1 ~ any one of 3, it is characterised in that: at the air inlet of the inlet channel
And filter structure is equipped at the gas outlet of exhaust passage.
5. safety valve described according to claim 1 ~ any one of 3, it is characterised in that: the core assembly includes piston type
Diaphragm unit and the elastic component of closed position is maintained it in for providing elastic force to the piston type diaphragm unit.
6. safety valve according to claim 5, it is characterised in that: the valve body is equipped with for supplying the piston type diaphragm
The valve chamber of component guiding movement assembly, the middle position of the valve chamber bottom are equipped with the bottom that the land upwardly extended makes valve chamber
Portion forms annular space in the outside of land, and the inlet channel is connected to by the annular space with the valve chamber, the row
Gas channel is connected to by the channel that land surrounds with valve chamber.
7. safety valve according to claim 6, it is characterised in that: the periphery of the piston type diaphragm unit is equipped with and is used for
The K shape sealing ring of cooperation is slidingly sealed with the inner wall of valve chamber.
8. Pneumatic braking system, including braking gas circuit and the safety valve being arranged in braking gas circuit, the safety valve includes valve
Body and core assembly, the valve body are equipped with inlet channel and exhaust passage, it is characterised in that: the valve body has for that will pacify
Full valve is mounted on the mounting structure on adaptation matrix, and valve body has the installation side for being bonded with described matrix, and the air inlet is logical
Road have be arranged on the installation side, the air inlet of the corresponding connection in the gas outlet on the matrix with adaptation.
9. Pneumatic braking system according to claim 8, it is characterised in that: the mounting structure is to be arranged in the valve body
On mounting hole.
10. Pneumatic braking system according to claim 9, it is characterised in that: the side of the valve body is equipped with to two sides
The connection ear of overhanging, the mounting hole are arranged in the connection ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117592.5A CN109780278A (en) | 2017-11-13 | 2017-11-13 | Safety valve and the Pneumatic braking system for using the safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711117592.5A CN109780278A (en) | 2017-11-13 | 2017-11-13 | Safety valve and the Pneumatic braking system for using the safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780278A true CN109780278A (en) | 2019-05-21 |
Family
ID=66493229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711117592.5A Pending CN109780278A (en) | 2017-11-13 | 2017-11-13 | Safety valve and the Pneumatic braking system for using the safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780278A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH252869A (en) * | 1945-09-15 | 1948-01-31 | Nedergaard Hans Christiern Geo | Safety valve. |
| CN2309466Y (en) * | 1996-12-17 | 1999-03-03 | 宁波神马集团有限公司 | Pneumatic one-way valve |
| CN2432409Y (en) * | 2000-06-06 | 2001-05-30 | 梅金月 | Plate type stabilized pressure regulator |
| CN102062243A (en) * | 2010-12-21 | 2011-05-18 | 芜湖盛力制动有限责任公司 | Overflow valve of vehicle or construction machinery brake system |
| CN201944354U (en) * | 2011-01-24 | 2011-08-24 | 铁道部运输局 | Railway vehicle and safety valve thereof |
| CN203363406U (en) * | 2013-06-25 | 2013-12-25 | 南京福碧源环境技术有限公司 | Connector for installing valve |
| CN103759052A (en) * | 2013-12-11 | 2014-04-30 | 余姚市电波机械有限公司 | Overflow valve of automobile braking system |
| CN203670949U (en) * | 2014-01-06 | 2014-06-25 | 浙江超超安全阀制造有限公司 | Safety valve convenient to adjust |
| CN205190864U (en) * | 2015-10-27 | 2016-04-27 | 江南工业集团有限公司 | Cartridge formula air throttle |
| CN207554893U (en) * | 2017-11-13 | 2018-06-29 | 新乡平原航空设备有限公司 | A kind of safety valve and the Pneumatic braking system using the safety valve |
-
2017
- 2017-11-13 CN CN201711117592.5A patent/CN109780278A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH252869A (en) * | 1945-09-15 | 1948-01-31 | Nedergaard Hans Christiern Geo | Safety valve. |
| CN2309466Y (en) * | 1996-12-17 | 1999-03-03 | 宁波神马集团有限公司 | Pneumatic one-way valve |
| CN2432409Y (en) * | 2000-06-06 | 2001-05-30 | 梅金月 | Plate type stabilized pressure regulator |
| CN102062243A (en) * | 2010-12-21 | 2011-05-18 | 芜湖盛力制动有限责任公司 | Overflow valve of vehicle or construction machinery brake system |
| CN201944354U (en) * | 2011-01-24 | 2011-08-24 | 铁道部运输局 | Railway vehicle and safety valve thereof |
| CN203363406U (en) * | 2013-06-25 | 2013-12-25 | 南京福碧源环境技术有限公司 | Connector for installing valve |
| CN103759052A (en) * | 2013-12-11 | 2014-04-30 | 余姚市电波机械有限公司 | Overflow valve of automobile braking system |
| CN203670949U (en) * | 2014-01-06 | 2014-06-25 | 浙江超超安全阀制造有限公司 | Safety valve convenient to adjust |
| CN205190864U (en) * | 2015-10-27 | 2016-04-27 | 江南工业集团有限公司 | Cartridge formula air throttle |
| CN207554893U (en) * | 2017-11-13 | 2018-06-29 | 新乡平原航空设备有限公司 | A kind of safety valve and the Pneumatic braking system using the safety valve |
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