CN208793769U - Pressure reducing valve with extension connection structure - Google Patents
Pressure reducing valve with extension connection structure Download PDFInfo
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- CN208793769U CN208793769U CN201821434052.XU CN201821434052U CN208793769U CN 208793769 U CN208793769 U CN 208793769U CN 201821434052 U CN201821434052 U CN 201821434052U CN 208793769 U CN208793769 U CN 208793769U
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- pressure reducing
- pressure regulation
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Abstract
The utility model provides a kind of pressure reducing valve with extension connection structure comprising valve body, guide's shell, diaphragm unit, pressure regulation column, piston body, elastic component and adjusting bar assembly；Wherein valve body includes input cavity, output cavity and intermediate cavity, input cavity is connected to output cavity by intermediate cavity, first guide cavity is formed between guide's shell and valve body, first guide cavity is divided into epicoele and cavity of resorption by diaphragm unit, pressure regulation column one end is connect with diaphragm unit, and the other end extends to outside through intermediate cavity and valve body, is provided with relief hole on pressure regulation column, piston piece is socketed on pressure regulation column to be driven far from input valve port, and elastic component is used for elastic extrusion piston part sealing input valve port.The pressure reducing valve of the utility model extends to outside valve body and is arranged connection position by the way that relief hole is arranged on pressure regulation column, and by one end of pressure regulation column, makes it that can connect the devices such as silencer or gas collector, corresponding to have the function that reduce noise or recycle the gas that leaks.
Description
Technical field
The utility model relates to pressure reducing valve field, in particular to a kind of pressure reducing valve with extension connection structure.
Background technique
Pressure reducing valve is to open valve by adjusting rod, and by the higher pressure reduction of import to the outlet for meeting requirement
Pressure, and automatically keep outlet pressure by pressure reducing valve internal structure and medium itself and export stable valve；
Fig. 1 is please referred to, wherein Fig. 1 is the structural schematic diagram of pressure reducing valve in the prior art；
In the prior art, generally relief hole can be set on valve body wall corresponding with diaphragm unit 13 on pressure reducing valve
14, gas is inputted from input cavity 11, and relief hole 14 is used for when pressure reducing valve is closed, inside first guide cavity 15 and output cavity 12
Gas discharge, in the king-sized occasion of fluid flow, can generate larger noise；
In addition, remaining gas passes through meeting 14 row of relief hole in output cavity 12 when being closed valve by adjusting rod
Out, the space of valve body wall corresponding with diaphragm unit 13 is too small, be not easy to the connection structures such as threaded hole come with it is corresponding external
Component connection, so that being not easy to recycle the gas of discharge, structure is owed rationally, especially in conveying toxic and harmful gas
When, it is easy to leak and causes environmental pollution, it has not been convenient to use, to limit the application range of pressure reducing valve.
Therefore need to provide a kind of pressure reducing valve with extension connection structure to solve above-mentioned technical problem.
Utility model content
The utility model provides a kind of pressure reducing valve with extension connection structure, by the way that pressure release is arranged on pressure regulation column
Hole, and one end of pressure regulation column is extended to outside valve body and connection position is set, to solve the pressure release of pressure reducing valve in the prior art
The problem of hole exhaust is generation loud noise, and the gas of relief hole discharge is not easily recycled, causes environmental pollution.
In order to solve the above technical problems, the technical solution of the utility model are as follows: a kind of decompression with extension connection structure
Valve, the pressure regulation column with connection position are epitaxially formed the extension connection structure that can be connect with silencer or exhaust gas collector comprising:
Valve body, it is described including input cavity, output cavity and the intermediate cavity between the input cavity and the output cavity
Intermediate cavity is connected to by inputting valve port with the input cavity, is connected to by output valve port with the output cavity；
Guide's shell is fixedly connected on the valve body, and first guide cavity is formed between the valve body, and elder generation's guide cavity is located at
The side of the intermediate cavity；
Diaphragm unit, elastic connection is intracavitary in the guide, and the first guide cavity is divided into epicoele and cavity of resorption, the film
Piece component according to the epicoele and it is described under intracavitary pressure size and corresponding resilient movement occurs, the epicoele passes through guide
Channel is connected to the input cavity, and the epicoele is connected to by pore with the cavity of resorption, and the aperture of the pore is less than the elder generation
The aperture of pathway；
Pressure regulation column, one end are connect with the diaphragm unit close to the side of the cavity of resorption, and the other end runs through the intermediate cavity
Outside is extended to the valve body, is provided on the pressure regulation column and is connected to the cavity of resorption and external relief hole, in the tune
One end that compression leg extends in outside is provided with the connection position for connecting with corresponding external component；
Piston piece is slidably arranged in the valve body and is socketed on the pressure regulation column, and the pressure regulation column is by the diaphragm
The extruding of component drives the piston piece far from the input valve port in turn, so that the input valve port is in opening-wide state；
Elastic component is connected between the piston piece and the inner wall of the valve body, and it is sliding to squeeze the piston piece for elasticity
It moves to seal the input valve port；
Bar assembly is adjusted, is arranged on guide's shell, including adjusting rod and is arranged in close on the adjusting rod
Head is blocked, the sealing end is for sealing the leader channel.
In the present invention, the diaphragm unit includes flexible sheet, connecting plate and fixing piece, in the elastic membrane
On piece, which is provided with, keeps away a hole, and the fixing piece is kept away a hole described in and is fixedly connected with the connecting plate, thus with the elasticity
Diaphragm forms the diaphragm unit, and the connecting hole for connecting with the pressure regulation column is provided on the fixing piece.
Wherein, the peripheral portion of the flexible sheet is clamped between guide's shell and the valve body, the bullet
Property diaphragm shape be round, ellipse, rectangle or triangle.
Further, the cavity of resorption is connected to the output cavity, and the port of the relief hole passes through the connecting hole and institute
State cavity of resorption connection, when the piston piece is far from the input valve port set distance, the port of the relief hole and the connection
Hole is in sealing state, when the piston piece seals the input valve port, the port of the relief hole by the connecting hole and
The cavity of resorption connection.
In the present invention, it is provided with installing port on the valve body, is connected with valve deck on the installing port, in institute
The sliding slot being provided on valve deck for being slidably connected with the piston piece is stated, the pressure regulation column extends to outer through the valve deck
Portion.
Further, the locating slot for the elastic component that is located by connecting, the elasticity are additionally provided on the valve deck
Part is spring, and the locating slot is ring-shaped, the periphery for being enclosed in the sliding slot of the locating slot.
In addition, the first sealing ring is provided between the valve deck and the installing port, in the piston piece or the cunning
The second sealing ring is provided between slot inner wall.
In the present invention, the epicoele is located remotely from one end of the intermediate cavity, and the cavity of resorption is located at close to described
One end of intermediate cavity, the adjusting bar assembly are set far from one end that one end of the sealing end extends to outside guide's shell
It is equipped with release handle.
In the present invention, the connection position is smooth surface hole, external thread part, internal thread hole, smooth surface hole and external thread part
Combination or external thread part and internal thread hole combination, muffler or exhaust gas collector are fixedly connected with the connection position.
In the present invention, it is provided in the one side of the piston piece in sealing contact with the input valve port
Gasket, the gasket are rubber material, and the gasket is connected on the piston piece by the way of encapsulated processing.
The utility model compared to the prior art, it has the advantage that: the pressure reducing valve of the utility model passes through in pressure regulation column
Upper setting relief hole, and one end of pressure regulation column is extended to outside valve body and is arranged connection position, make it that can connect silencer or gas
The devices such as body collector, it is corresponding to have the function that reduce noise or recycle the gas that leaks；
Its clever structure controls the movement of diaphragm unit by the pressure difference of control epicoele and cavity of resorption, to control tune
The movement of compression leg, and then piston piece is controlled at a distance from input valve port, so that input cavity keeps the delivery pressure of setting to output cavity
Power.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below in embodiment
Required attached drawing is briefly described, and the accompanying drawings in the following description is only that the section Example of the utility model is corresponding
Attached drawing.
Fig. 1 is the structural schematic diagram of pressure reducing valve in the prior art.
Fig. 2 is the structural schematic diagram of the preferred embodiment of the pressure reducing valve with extension connection structure of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those skilled in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
In the prior art, the setting of relief hole can generate larger noise, and exclude other be not easily recycled, structure owes to close
Reason, especially when conveying toxic and harmful gas, is easy to leak and causes environmental pollution, it has not been convenient to use, to limit decompression
The application range of valve.
It the following is a kind of decompression with extension connection structure that can solve the above technical problem provided by the utility model
The preferred embodiment of valve.
Referring to figure 2., wherein Fig. 2 be the utility model pressure reducing valve with extension connection structure preferred embodiment
Structural schematic diagram.
The similar unit of structure is to be given the same reference numerals in the figure.
The preferred embodiment of pressure reducing valve provided by the utility model with extension connection structure are as follows: there is one kind extension to connect
The pressure reducing valve of binding structure comprising valve body 21, guide's shell 22, diaphragm unit, pressure regulation column 24, piston body, spring 26 and tune
Pole component, the pressure regulation column 24 with connection position are epitaxially formed the extension connection knot that can be connect with silencer or exhaust gas collector
Structure；
Wherein, valve body 21 is including input cavity 211, output cavity 212 and between input cavity 211 and output cavity 212
Intermediate cavity 213, intermediate cavity 213 are connected to by inputting valve port with input cavity 211, are connected to by output valve port with output cavity 212；
Guide's shell 22 is fixedly connected on valve body 21, and first guide cavity 221 is formed between valve body 21, and first guide cavity 221 is located at
The side of intermediate cavity 213；
In the first guide cavity 221 of diaphragm unit elastic connection, and first guide cavity 221 is divided into epicoele and cavity of resorption (221 institute of serial number
The part of mark be epicoele), diaphragm unit according to epicoele and under intracavitary pressure size and corresponding resilient movement occurs, epicoele
It is connected to by leader channel 222 with input cavity 211, epicoele is connected to by pore with cavity of resorption, and pore is being not shown in the figure, and pore can
It is arranged on flexible sheet 23, may also be arranged on other component, the aperture of pore is less than the aperture of leader channel 222；
24 one end of pressure regulation column and diaphragm unit are connected close to the side of cavity of resorption, and the other end runs through intermediate cavity 213 and valve body 21
Outside is extended to, connection cavity of resorption and external relief hole 241 are provided on pressure regulation column 24, extends in outside in pressure regulation column 24
One end is provided with the connection position for connecting with corresponding external component, and pressure regulation column 24 preferably uses metal material, in remaining spy
Fixed occasion can also use other hard non-metallic materials when using；
Piston piece 25 is slidably arranged in valve body 21 and is socketed on pressure regulation column 24, extruding of the pressure regulation column 24 by diaphragm unit
And then drive piston piece 25 far from input valve port, so that input valve port is in opening-wide state；
Spring 26 is connected between piston piece 25 and the inner wall of valve body 21, is slided for elastic extrusion piston part 25 with close
Envelope input valve port；
It adjusts bar assembly to be arranged on guide's shell 22, including adjusting rod 27 and the sealing being arranged on adjusting rod 27
End, sealing end are not cutd open in figure and are shown for sealing leader channel 222.
In the preferred embodiment, connection position can be but be not limited to smooth surface hole, external thread part, internal thread hole, smooth surface hole with
The combination of external thread part or the combination of external thread part and internal thread hole etc., wherein muffler or useless can be fixedly connected in connection position
The components such as gas collector, so that corresponding have the function that reduce noise or recycle the gas that leaks.
Specifically, diaphragm unit includes flexible sheet 23, connecting plate 231 and fixing piece 232, set on flexible sheet 23
It is equipped with and keeps away a hole, fixing piece 232 passes through and keeps away a hole and be fixedly connected with connecting plate 231, thus with the formation diaphragm group of flexible sheet 23
Part is provided with the connecting hole for connecting with pressure regulation column 24 on fixing piece 232；
Can also be between flexible sheet 23 and connecting plate be integrally machined, riveted, the connection combination such as encapsulated.
Wherein, the peripheral portion of flexible sheet 23 is clamped between guide's shell 22 and valve body 21,22 He of guide's shell
Valve body 21 is fixedly connected by screw 29, and the shape of flexible sheet 23 can be round, ellipse, rectangle or triangle, polygon
Etc. geometries.
Cavity of resorption is connected to 212 through hole 214 of output cavity, and the port of relief hole 241 is connected to by connecting hole with cavity of resorption, works as work
When plug member 25 is far from input valve port set distance, since the larger elastic compression force of spring 26 at this time is conducted to pressure regulation column 24 and solid
Determine between part 232, the port that can make relief hole 241 and connecting hole are in sealing state, while but also input cavity 211 and output
When carrying out the stable conveying of gas between chamber 212, gas-tight,
When piston piece 25 seals input valve port, due to there is no very big squeeze between pressure regulation column 24 and fixing piece 232 at this time
Pressure may make the port of relief hole 241 by connecting hole and cavity of resorption in connected state, while can be by output cavity 212 and cavity of resorption
Interior residual gas is discharged by relief hole；
Optionally, elastomer block is set between adjustable compression leg 24 and fixing piece 232, when so that stablizing conveying gas, relief hole
There is preferable sealing state between 241 port and connecting hole.
In the preferred embodiment, be provided with installing port on valve body 21, the case mesoporous can be used for installing pressure regulation column 24 with
And the equal components of piston piece 25, it is connected with valve deck 28 on installing port, is provided on valve deck 28 and connects for being slided with piston piece 25
The sliding slot connect, pressure regulation column 24 extend to outside through valve deck 28.
Wherein, the locating slot for the spring 26 that is located by connecting is additionally provided on valve deck 28, locating slot is ring-shaped, positioning
The periphery for being enclosed in sliding slot of slot.
In addition, the first sealing ring 281 is provided between valve deck 28 and installing port, between piston piece 25 or sliding slot inner wall
It is provided with the second sealing ring 282, to prevent the gas in the body cavities such as input cavity 211, output cavity 212 from leaking.
In the preferred embodiment, epicoele is located remotely from one end of intermediate cavity 213, and cavity of resorption is located at close to intermediate cavity 213
One end adjusts one end that bar assembly extends to outside guide's shell 22 far from one end of sealing end and is provided with release handle.
In the present invention, it is provided in the one side of piston piece 25 for the gasket in sealing contact with input valve port
251, gasket 251 is rubber material, and gasket 251 is connected on piston piece 25 by the way of encapsulated processing.
Working principle of the utility model is: piston piece 25 seals the input in intermediate cavity 213 before opening the pressure reducing valve
Valve port, to separate input cavity 211 and output cavity 212；
When needing to open the pressure reducing valve, leader channel 222 can be opened by screwing adjusting rod 27, input cavity 211
Gas is input to intracavitary, and input rate is far longer than the delivery rate of the pore between epicoele and cavity of resorption, so that epicoele
Pressure be gradually increased, while gradually compressing diaphragm unit move down, and by pressure regulation column 24 drive piston piece 25 overcome spring 26
Elastic force and move down, input valve port of the piston piece 25 far from intermediate cavity 213 so that between input cavity 211 and output cavity 212
Carry out gas stablizes conveying；
When needing to close the pressure reducing valve, close leader channel 222 by screwing adjusting rod 27, epicoele by pore by
Cavity of resorption is gradually delivered the gas to, epicoele pressure gradually weakens, and the pressure acted on diaphragm unit can not overcome spring 26 gradually
Elastic force so that piston piece 25 moves up and in sealing contact with the input valve port of intermediate cavity 213, and then separate 211 He of input cavity
Output cavity 212；
Wherein, when piston piece 25 seals input valve port, due at this time between pressure regulation column 24 and fixing piece 232 without very big
Extruding force, may make the port of relief hole 241 by connecting hole and cavity of resorption in connected state, output cavity 212 and under it is intracavitary
Residual gas then passes through relief hole 241 and is discharged.
The course of work of the pressure reducing valve with extension connection structure of this preferred embodiment is completed in this way.
The pressure reducing valve with extension connection structure of this preferred embodiment will be adjusted by the way that relief hole is arranged on pressure regulation column
One end of compression leg extends to outside valve body and setting connection position, makes it that can connect the devices such as silencer or gas collector, corresponding
Have the function that reduce noise or recycles the gas that leaks；
Its clever structure controls the movement of diaphragm unit by the pressure difference of control epicoele and cavity of resorption, to control tune
The movement of compression leg, and then piston piece is controlled at a distance from input valve port, so that input cavity keeps the delivery pressure of setting to output cavity
Power.
Although above preferred embodiment is not used in conclusion the utility model is disclosed above with preferred embodiment
To limit the utility model, those skilled in the art can make without departing from the spirit and scope of the utility model
It is various to change and retouch, therefore the protection scope of the utility model subjects to the scope of the claims.
Claims (10)
1. a kind of pressure reducing valve with extension connection structure characterized by comprising
Valve body, including input cavity, output cavity and the intermediate cavity between the input cavity and the output cavity, the centre
Chamber is connected to by inputting valve port with the input cavity, is connected to by output valve port with the output cavity；
Guide's shell is fixedly connected on the valve body, and first guide cavity is formed between the valve body, and elder generation's guide cavity is located at described
The side of intermediate cavity；
Diaphragm unit, elastic connection is intracavitary in the guide, and the first guide cavity is divided into epicoele and cavity of resorption, the diaphragm group
Part according to the epicoele and it is described under intracavitary pressure size and corresponding resilient movement occurs, the epicoele passes through leader channel
It is connected to the input cavity, the epicoele is connected to by pore with the cavity of resorption, and the aperture of the pore is first connected less than described
The aperture in road；
Pressure regulation column, one end are connect with the diaphragm unit close to the side of the cavity of resorption, and the other end runs through the intermediate cavity and institute
It states valve body and extends to outside, be provided on the pressure regulation column and be connected to the cavity of resorption and external relief hole, in the pressure regulation column
Extend in external one end be provided with for the connection position of corresponding external component connection；
Piston piece is slidably arranged in the valve body and is socketed on the pressure regulation column, and the pressure regulation column is by the diaphragm unit
Extruding so that drive the piston piece far from the input valve port so that the input valve port is in opening-wide state；
Elastic component is connected between the piston piece and the inner wall of the valve body, for elasticity squeeze piston piece sliding with
Seal the input valve port；
Bar assembly is adjusted, is arranged on guide's shell, including adjusting rod and the sealed end being arranged on the adjusting rod
Head, the sealing end is for sealing the leader channel.
2. the pressure reducing valve according to claim 1 with extension connection structure, which is characterized in that the diaphragm unit includes
Flexible sheet, connecting plate and fixing piece are provided on the flexible sheet and keep away a hole, and the fixing piece keeps away position across described
Hole is fixedly connected with the connecting plate, to form the diaphragm unit with the flexible sheet, is arranged on the fixing piece
There is the connecting hole for connecting with the pressure regulation column.
3. the pressure reducing valve according to claim 2 with extension connection structure, which is characterized in that the week of the flexible sheet
Side-nip is fixed between guide's shell and the valve body, and the shape of the flexible sheet is round, ellipse, rectangle
Or triangle.
4. the pressure reducing valve according to claim 2 with extension connection structure, which is characterized in that the cavity of resorption with it is described defeated
Chamber is connected to out, and the port of the relief hole is connected to by the connecting hole with the cavity of resorption, when the piston piece is far from described defeated
When entering valve port set distance, the port of the relief hole and the connecting hole are in sealing state, described in piston piece sealing
When inputting valve port, the port of the relief hole is connected to by the connecting hole with the cavity of resorption.
5. the pressure reducing valve according to claim 1 with extension connection structure, which is characterized in that be arranged on the valve body
There is installing port, be connected with valve deck on the installing port, is provided on the valve deck for being slidably connected with the piston piece
Sliding slot, the pressure regulation column extends to outside through the valve deck.
6. the pressure reducing valve according to claim 5 with extension connection structure, which is characterized in that also set on the valve deck
It is equipped with the locating slot for the elastic component that is located by connecting, the elastic component is spring, and the locating slot is ring-shaped, described fixed
The periphery for being enclosed in the sliding slot of position slot.
7. the pressure reducing valve according to claim 5 with extension connection structure, which is characterized in that in the valve deck and described
It is provided with the first sealing ring between installing port, is provided with the second sealing ring between the piston piece or the sliding slot inner wall.
8. the pressure reducing valve according to claim 1 with extension connection structure, which is characterized in that the epicoele is located remotely from
One end of the intermediate cavity, the cavity of resorption are located at close to one end of the intermediate cavity, and the adjusting bar assembly is far from the sealing
One end that one end of end extends to outside guide's shell is provided with release handle.
9. the pressure reducing valve according to claim 1 with extension connection structure, which is characterized in that the connection position is smooth surface
Hole, external thread part, internal thread hole, the combination of smooth surface hole and external thread part or the combination of external thread part and internal thread hole, muffler
Or exhaust gas collector is fixedly connected with the connection position.
10. the pressure reducing valve according to claim 1 with extension connection structure, which is characterized in that in the piston piece
It is provided on one side for the gasket in sealing contact with the input valve port, the gasket is rubber material, the sealing
Pad is connected on the piston piece by the way of encapsulated processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821434052.XU CN208793769U (en) | 2018-09-03 | 2018-09-03 | Pressure reducing valve with extension connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821434052.XU CN208793769U (en) | 2018-09-03 | 2018-09-03 | Pressure reducing valve with extension connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208793769U true CN208793769U (en) | 2019-04-26 |
Family
ID=66208083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821434052.XU Active CN208793769U (en) | 2018-09-03 | 2018-09-03 | Pressure reducing valve with extension connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208793769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028127A (en) * | 2021-05-31 | 2021-06-25 | 沈阳航天新光集团有限公司 | Gas cavity volume adjustable structure of non-mechanical gas pressure reducer |
-
2018
- 2018-09-03 CN CN201821434052.XU patent/CN208793769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028127A (en) * | 2021-05-31 | 2021-06-25 | 沈阳航天新光集团有限公司 | Gas cavity volume adjustable structure of non-mechanical gas pressure reducer |
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