CN207554893U - A kind of safety valve and the Pneumatic braking system using the safety valve - Google Patents
A kind of safety valve and the Pneumatic braking system using the safety valve Download PDFInfo
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- CN207554893U CN207554893U CN201721506695.6U CN201721506695U CN207554893U CN 207554893 U CN207554893 U CN 207554893U CN 201721506695 U CN201721506695 U CN 201721506695U CN 207554893 U CN207554893 U CN 207554893U
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Abstract
A kind of Pneumatic braking system the utility model is related to safety valve and using the safety valve.Valve body with after the matrix close fit being adapted to, air inlet connection corresponding with the gas outlet on matrix on valve body installation 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 connect simultaneously after being fastenedly connected with matrix, it does not need to set up pipeline in the week of valve body in this way, solve the problems, such as existing safety valve connected with corresponding matrix by pipeline caused by gas circuit system pipeline it is complicated, and the valve body of this safety valve is connected with the air inlet made simultaneously when being fastenedly connected on valve body installation side for the matrix being adapted to 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
A kind of Pneumatic braking system the utility model is related to safety valve and using the safety valve.
Background technology
For hypertonia in braking gas circuit is avoided to need to set safety valve in braking gas circuit in vehicle air braking system,
When braking hypertonia in gas circuit, safety valve, which is opened, will realize decompression in pressure venting to air.For rail vehicle braking
For safety valve in system, due to the limitation of body structure, need to reduce the size in safety valve circumferential direction as possible.On safety valve
It is provided with air inlet and gas outlet, the air inlet on existing safety valve is generally located on the side of valve body, and braking gas circuit passes through
Pipeline is connected 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 gas outlet, and core assembly includes spring, bullet
Spring abutment and diaphragm, diaphragm closes air inlet and gas outlet under the elastic force effect of spring, when the pressure in air inlet is excessive
When air pressure the active force of spring is overcome to make diaphragm is upwardly-deformed to open gas outlet, gas through gas outlet discharge realize decompression.Valve
Body has for the installation side that is connected with corresponding base mate, and the inlet, outlet on valve body is the company for being arranged on valve body both sides
Connect hole, after valve body is connected by installation side with corresponding matrix, the gas piping in connection on air inlet, by gas piping with
Gas circuit connection on matrix thus needs the setting connection gas circuit between safety valve and corresponding matrix, causes air-channel system
The problem of pipeline structure is complicated.
Utility model content
The purpose of this utility model is to provide a kind of safety valves, are passed through with solving existing safety valve with corresponding matrix
The problem of gas circuit system pipeline caused by pipeline connects is complicated；Meanwhile the utility model also provides a kind of use above-mentioned peace
The Pneumatic braking system of full valve.
To achieve the above object, the safety valve of the utility model adopts the following technical scheme that：
The technical solution 1 of safety valve：Safety valve, including valve body and core assembly, the valve body be equipped with inlet channel and
Exhaust passage, the valve body have for by safety valve be mounted on adaptation matrix on mounting structure, valve body have for institute
State matrix fitting installation side, the inlet channel have be arranged on the installation side, for going out on the matrix being adapted to
Gas port corresponds to the air inlet of connection.Valve body with after the matrix close fit being adapted to, on the air inlet and matrix on valve body installation side
Gas outlet correspond to connection, then valve body and matrix are fastened together by mounting structure, valve body and matrix fastening company
It connects rear while makes the connection corresponding with the exhaust outlet on matrix of the air inlet on valve body installation side, do not need to the circumferential direction in valve body in this way
It is complicated to solve gas circuit system pipeline caused by existing safety valve is connected with corresponding matrix by pipeline for upper setting pipeline
The problem of, and the valve body of this safety valve and the air inlet made simultaneously when being fastenedly connected on valve body installation side for the matrix being adapted to
It is connected with the exhaust outlet on matrix, assembly manipulation is simple and convenient, and connection is reliable, can be suitable for the more stringent gas in operating space
It presses in braking system, such as in rail vehicle braking system.
The technical solution 2 of safety valve is further improved to obtain on the basis of the technical solution 1 of safety valve：The installation
Structure is the mounting hole being arranged on the valve body, simple in structure, and connection can be realized by bolt, easy for installation.
The technical solution 3 of safety valve is further improved to obtain on the basis of the technical solution 2 of safety valve：The valve body
Side be equipped with the connection ear that overhangs to both sides, the mounting hole is arranged on described connect in ear.
The technical solution 4 of safety valve is further improved in the technical solution 1 ~ 3 of safety valve on the basis of any one
It arrives：Filtration 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 in the technical solution 1 ~ 3 of safety valve on the basis of any one
It arrives：The core assembly include piston type diaphragm unit and for the piston type diaphragm unit provide elastic force so that its
It is maintained at the elastic component of closed position.
The technical solution 6 of safety valve is further improved to obtain on the basis of the technical solution 5 of safety valve：The valve body
The valve chamber being used for for piston type diaphragm unit guiding movement assembling is equipped with, the middle position of the valve chamber bottom is equipped with
The land upwardly extended causes the bottom of valve chamber to form annular space in the outside of land, and the inlet channel passes through the annular
Space is connected with the valve chamber, and the exhaust passage is connected by the channel that land surrounds with valve chamber.
The technical solution 7 of safety valve is further improved to obtain on the basis of the technical solution 6 of safety valve：The piston
The periphery of formula diaphragm unit is equipped with the K shape sealing rings that cooperation is slidingly sealed for the inner wall with valve chamber.
The Pneumatic braking system of the utility model adopts the following technical scheme that：
The technical solution 1 of Pneumatic braking system：Pneumatic braking system including braking gas circuit and is arranged in braking gas circuit
Safety valve, the safety valve include valve body and core assembly, the valve body be equipped with inlet channel and exhaust passage, the valve
Body has for safety valve to be mounted on to the mounting structure on adaptation matrix, and valve body has the installation for being bonded with described matrix
Side, the inlet channel have be arranged on the installation side, the gas outlet on the matrix with adaptation it is correspondings connect into
Gas port.Valve body with after the matrix close fit being adapted to, the connection corresponding with the gas outlet on matrix of air inlet on valve body installation side,
Then valve body and matrix are fastened together by mounting structure, valve body installs valve body simultaneously after being fastenedly connected with matrix
Air inlet connection corresponding with the exhaust outlet on matrix on side, does not need to set up pipeline in the week of valve body in this way, solve existing
The problem of gas circuit system pipeline caused by some safety valves are connected with corresponding matrix by pipeline is complicated, and this peace
The valve body of full valve and the exhaust outlet on the air inlet and matrix that make simultaneously when being fastenedly connected on valve body installation side for the matrix being adapted to
Connection, assembly manipulation is simple and convenient, and connection is reliable, can suitable for the more stringent Pneumatic braking system in operating space, than
In rail vehicle braking system.
The technical solution 2 of Pneumatic braking system is further improved on the basis of the technical solution 1 of Pneumatic braking system
It arrives：The mounting structure is the mounting hole being arranged on the valve body, simple in structure, 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 the technical solution 2 of Pneumatic braking system
It arrives：The side of the valve body is equipped with the connection ear to overhang to both sides, and the mounting hole is arranged in the connection ear.
The technical solution 4 of Pneumatic braking system, in the technical solution 1 ~ 3 of Pneumatic braking system on the basis of any one
It is further improved to obtain：Filtration is equipped at the air inlet of the inlet channel and at the gas outlet of exhaust passage.
The technical solution 5 of Pneumatic braking system, in the technical solution 1 ~ 3 of Pneumatic braking system on the basis of any one
It is further improved to obtain：The core assembly includes piston type diaphragm unit and for providing 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 the technical solution 5 of Pneumatic braking system
It arrives：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 the land upwardly extended is equipped at position the bottom of valve chamber is caused to form annular space, the inlet channel in the outside of land
It is connected by the annular space with the valve chamber, the exhaust passage is connected by the channel that land surrounds with valve chamber.
The technical solution 7 of Pneumatic braking system is further improved on the basis of the technical solution 6 of Pneumatic braking system
It arrives：The periphery of the piston type diaphragm unit is equipped with the K shape sealing rings that cooperation is slidingly sealed for the inner wall with valve chamber.
Description of the drawings
Fig. 1 is the structure diagram of the safety valve in the embodiment 1 of the Pneumatic braking system of the utility model；
Fig. 2 is sectional views of the Fig. 1 along A-A directions；
Fig. 3 is the vertical view of Fig. 2；
In attached drawing：1st, upper shell screw；2nd, sealing ring；3rd, net-filter assembly；4th, lower housing；5th, K shape sealing rings；6th, piston type
Diaphragm unit；7th, spring；8th, spring base；9th, upper shell；10th, adjusting bolt；11st, lead sealing；12nd, ball rises formula plug；13rd, filter disc；
14th, baffle ring；15th, rubber cushion；16th, fillister head screw；17th, rivet seat；41st, inlet channel；42nd, exhaust passage.
Specific embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment 1 of the Pneumatic braking system of the utility model, as shown in Figure 1 to Figure 3, Pneumatic braking system includes
Braking gas circuit includes and safety valve, safety valve include upper shell 9, lower housing 4 and core assembly.Upper shell 9 has along upper
The inner cavity of lower direction extension, core assembly are mounted in the inner cavity.Core assembly includes piston type diaphragm unit 6 and is used for
The elastic component that elastic force maintains it in closed position is provided piston type diaphragm unit 6, and elastic component is in the present embodiment
Spring 7.Piston type diaphragm unit 6 includes piston and the seal on piston.The upper end of spring 7 is equipped with adjusting bolt
10, the upper end of adjusting bolt 10 is coordinated to tighten end, lower end by spring base 8 and spring top pressure.It is set at the medium position of spring
Coordinated by the screw thread and upper shell 9, lower end top pressure is rotatably assorted on spring base 8 and with spring base 8.By tightening end rotation
Screw rod can be moved up and down relative to upper shell 9 during adjusting screw rod, so as to which the decrement for making spring is adjusted, make safety valve
Opening pressure is adjustable.Lead sealing 11 is equipped between the upper end of adjusting bolt 10 and upper shell 9, avoids arbitrarily adjusting adjusting screw rod, carry
High safety factor.
Lower housing 4 is the valve body of safety valve, and counterbore is equipped at the medium position of lower housing 4, which forms safety valve
Valve chamber, guiding movement is assemblied in the valve chamber piston type diaphragm unit 6 along the vertical direction, to ensure the inner wall of piston and valve chamber
Between leakproofness, K shape sealing rings 5, the friction between K shape sealing rings 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 shell 9 is inserted into valve chamber, while upper
Mounting hole is equipped at the periphery of housing 9,9 screw 1 of upper shell, which is inserted into mounting hole, links together upper-lower casing.
The inlet channel 41 and exhaust passage 42 of safety valve are arranged on lower housing 4, and the air inlet of inlet channel 41 is set
It puts on the bottom surface of lower housing 4, while net-filter assembly is equipped on the air inlet of inlet channel 41, peace is entered for filtering
Gas in full valve is arranged on and sealing is improved when the sealing ring 2 at the air inlet can ensure 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 closed by the ball formula plug 12 that rises.The air inlet of exhaust passage
The center position of valve chamber bottom is arranged on, the middle position of air inlet, that is, valve chamber bottom 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 being contacted with the annular protrusion
Mouth closing.Valve chamber forms annular space in its bottom by the annular protrusion, and the gas outlet of inlet channel is arranged on annular sky
Between bottom on, connected by the annular space with valve chamber, the exhaust outlet of exhaust passage by the channel that annular space surrounds with
Valve chamber connects.Seal uses rubber seal, makes to form soft seal knot between piston type diaphragm unit 6 and lower housing 4 in this way
Structure ensures good sealing performance under smaller resilient force.The gas outlet of exhaust passage is arranged on the side of lower housing 4
On, while filter disc 13 is equipped at the gas outlet, filter disc 13 is fixed by baffle ring 14, and the impurity in external environment is avoided to enter
So as 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, so as to improve the air pressure in braking gas circuit
Active force.
The left and right sides of lower housing 4 is arranged with two connection ears, mounting hole is equipped in two connection ears, when this
It is when safety valve is connect with the gas circuit on related device, the air inlet of 4 upper bottom portion of lower housing is corresponding with the interface on device, under making
The bottom surface of housing 4 and the joint face of device are fitted and connected, and finally pass through two mounting holes by lower housing 4 and device with attachment screw
It is fastened together.Since the air inlet of inlet channel to be arranged on to the bottom position of lower housing 4, while board-like company is used again
Binding structure so that safety valve does not need to setting in connection and sets connecting line in its circumferential direction, and valve body is fastenedly connected with matrix
Make the connection corresponding with the exhaust outlet on matrix of the air inlet on valve body installation side simultaneously afterwards, do not need in this way in the circumferential direction of valve body
Pipeline is set, it is complicated to solve gas circuit system pipeline caused by existing safety valve is connected with corresponding matrix by pipeline
Problem；And the valve body of this safety valve and the air inlet made simultaneously when being fastenedly connected on valve body installation side of matrix that is adapted to
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 is directly matched with the elastic force of spring, makes peace
The adjustment of the Opening pressure of full valve is more accurate.And inlet channel and exhaust passage are arranged on lower housing make safety valve knot
Structure is simple, and the processing of lower housing, assembly process process are good, easy to maintenance.
The embodiment 2 of the Pneumatic braking system of the utility model in the present embodiment, sets screw on lower housing, peace
It is directly connected during dress by screw with corresponding device, other are same as Example 1, repeat no more.
The embodiment 3 of the Pneumatic braking system of the utility model in the present embodiment, sets four connections on lower housing
Ear, each connect are respectively provided with mounting hole, enhance the fastness of lower housing connection in this way in ear, other are same as Example 1,
It repeats no more.
The embodiment 4 of the Pneumatic braking system of the utility model, in the present embodiment, the gas outlet of inlet channel is arranged on
At the medium position of valve chamber, the air inlet of exhaust passage be arranged on valve chamber by the position of proximal edge at, other and 1 phase of embodiment
Together, it repeats no more.
The embodiment 5 of the Pneumatic braking system of the utility model, in the present embodiment, lower housing are set as cylindrical,
He is same as Example 1, repeats no more.
The embodiment 6 of the Pneumatic braking system of the utility model, in the present embodiment, the sealing set on the periphery of piston
It encloses as O-ring seals, other are same as Example 1, repeat no more.
The embodiment of the safety valve of the utility model, the safety valve and the peace in the embodiment of above-mentioned Pneumatic braking system
The structure of full valve is identical, repeats no more.
Claims (14)
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 for safety valve to be mounted on to the mounting structure on adaptation matrix, and valve body has to be 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 correspondings 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 both sides
Lug portion, the mounting hole are arranged in the connection ear.
4. the safety valve according to any one in claim 1 ~ 3, it is characterised in that：At the air inlet of the inlet channel
And it is equipped with filtration at the gas outlet of exhaust passage.
5. the safety valve according to any one in claim 1 ~ 3, it is characterised in that：The core assembly includes piston type
Diaphragm unit and the elastic component for maintaining it in closed position to piston type diaphragm unit offer elastic force.
6. safety valve according to claim 5, it is characterised in that：The valve body, which is equipped with, to be used to supply the piston type diaphragm
The valve chamber of component guiding movement assembling, the middle position of the valve chamber bottom are equipped with the bottom that the land upwardly extended causes valve chamber
Portion forms annular space in the outside of land, and the inlet channel is connected by the annular space with the valve chamber, the row
Gas channel is connected 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 rings of cooperation are slidingly sealed with the inner wall of valve chamber.
8. Pneumatic braking system includes valve including braking gas circuit and the safety valve being arranged in braking gas circuit, the safety 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 to 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 led to
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 is arranged on 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 both sides
The connection ear of overhanging, the mounting hole are arranged in the connection ear.
11. the Pneumatic braking system according to any one in claim 8 ~ 10, it is characterised in that：The inlet channel
Filtration is equipped at air inlet and at the gas outlet of exhaust passage.
12. the Pneumatic braking system according to any one in claim 8 ~ 10, it is characterised in that：The core assembly packet
It includes piston type diaphragm unit and maintains it in closed position for providing elastic force to the piston type diaphragm unit
Elastic component.
13. Pneumatic braking system according to claim 12, it is characterised in that：The valve body, which is equipped with, to be used to supply the work
The valve chamber of plug diaphragm unit guiding movement assembling, the middle position of the valve chamber bottom are equipped with the land upwardly extended and cause
Annular space is formed in the outside of land on the bottom of valve chamber, and the inlet channel is connected by the annular space and the valve chamber
Logical, the exhaust passage is connected by the channel that land surrounds with valve chamber.
14. Pneumatic braking system according to claim 13, it is characterised in that：On the periphery of the piston type diaphragm unit
Equipped with the K shape sealing rings that cooperation is slidingly sealed for the inner wall with valve chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506695.6U CN207554893U (en) | 2017-11-13 | 2017-11-13 | A kind of safety valve and the Pneumatic braking system using the safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721506695.6U CN207554893U (en) | 2017-11-13 | 2017-11-13 | A kind of safety valve and the Pneumatic braking system using the safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554893U true CN207554893U (en) | 2018-06-29 |
Family
ID=62682935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721506695.6U Active CN207554893U (en) | 2017-11-13 | 2017-11-13 | A kind of safety valve and the Pneumatic braking system using the safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780278A (en) * | 2017-11-13 | 2019-05-21 | 新乡航空工业(集团)有限公司 | Safety valve and the Pneumatic braking system for using the safety valve |
-
2017
- 2017-11-13 CN CN201721506695.6U patent/CN207554893U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780278A (en) * | 2017-11-13 | 2019-05-21 | 新乡航空工业(集团)有限公司 | Safety valve and the Pneumatic braking system for using the safety valve |
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