CN206874895U - Gas control pressure opening and closing valve - Google Patents
Gas control pressure opening and closing valve Download PDFInfo
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- CN206874895U CN206874895U CN201720733711.9U CN201720733711U CN206874895U CN 206874895 U CN206874895 U CN 206874895U CN 201720733711 U CN201720733711 U CN 201720733711U CN 206874895 U CN206874895 U CN 206874895U
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Abstract
It the utility model is related to a kind of gas control pressure opening and closing valve of changeable source of the gas supply.The gas control pressure opening and closing valve includes valve body, it is characterised in that：The valve body is provided with main inlet channel, secondary inlet channel and outlet passageway, insertion chamber is provided with the valve body, the insertion chamber all communicates with main inlet channel, secondary inlet channel and outlet passageway, the outside of the insertion chamber is provided with lower spring chamber, and the lower spring chamber is by main inlet channel with penetrating chamber.This gas control pressure opening and closing valve, it can apply in the pneumatic process control system with gas source and secondary source of the gas, in the case where gas source breaks down, pass through the switching of the gas control pressure opening and closing valve, secondary source of the gas can be made to continue to supply, until gas source or steam line recover normal supply.
Description
Technical field
It the utility model is related to a kind of switch valve, and in particular to a kind of gas control pressure opening and closing valve.
Background technology
In pneumatic process control system, source of the gas or supply air line break down, and cause to supply air generation exception.Especially
It is operated pneumatic valve control system, operated pneumatic valve needs gas source feed to open, if gas source goes wrong, then pneumatic operated valve
Goalkeeper can not automatically turn on, and can only manually open, be made troubles to manager.
The content of the invention
In view of deficiency existing for existing basis, the utility model innovation provides a kind of gas control pressure of changeable source of the gas supply
Power switch valve.
The gas control pressure opening and closing valve includes valve body, it is characterised in that：The valve body is provided with main inlet channel, secondary air inlet
Passage and outlet passageway, are provided with insertion chamber in the valve body, the insertion chamber and main inlet channel, secondary inlet channel with
And outlet passageway all communicates, the outside of the insertion chamber is provided with lower spring chamber, and the lower spring chamber is by main inlet channel
With penetrating chamber, matched in the lumen therethrough room and be provided with lower piston, lower spring is provided with the lower spring chamber, under described
Spring is up acted on lower piston, and lower piston can be made to block main inlet channel to be communicated with insertion chamber, the insertion chamber
Interior to be provided with upper piston, the upper piston is located above lower piston, and the outside of the insertion chamber is provided with upper spring chamber, it is described on
Upper spring is provided with spring chamber, the upper spring is up acted on upper piston, and work can be driven by being provided with above the valve body
The drive mechanism that pushes moved down is filled in, the lower piston is provided with the through hole for connecting secondary inlet channel with outlet passageway, institute
Stating can promote lower piston to move down when upper piston moves down, and can block the through hole of lower piston.
It is described push drive mechanism include bonnet, air chamber plate, upper diaphragm, lower diaphragm, upper diaphragm seat, adjusting bolt, with
And adjustment spring, the bonnet are provided with venthole, the air chamber plate is arranged between valve body and bonnet, the lower diaphragm arrangement
Between valve body and air chamber plate, and above upper piston, the upper diaphragm is arranged between bonnet and air chamber plate, the lower film
There is lower chamber between piece and air chamber plate, there is upper chamber, the air chamber plate is provided with will between the upper diaphragm and air chamber plate
Upper chamber and the pressure hole of lower chamber insertion, the air chamber plate are provided with the signal stomata communicated with upper chamber, the upper diaphragm
It is arranged on upper diaphragm seat, the adjustment spring is arranged in bonnet, and the upper diaphragm seat acts under the elastic force of adjustment spring
On air chamber plate, and get lodged on the pressure hole of air chamber plate, the upper diaphragm seat is provided with relief hole, and the relief hole can be by upper gas
Room connects with the inner chamber of bonnet, and the place suitable for reading of the relief hole is placed with steel ball, and the adjusting bolt is located on bonnet, the tune
The lower end of whole screw rod is located above steel ball.
The adjusting bolt is rotatably connected on bonnet, and upper spring seat, institute are threaded with the adjusting bolt
Adjustment spring is stated to be arranged between upper spring seat and upper diaphragm seat.
According to a kind of gas control pressure opening and closing valve provided by the utility model, can apply with gas source and secondary source of the gas
In pneumatic process control system, in the case where gas source breaks down, by the switching of the gas control pressure opening and closing valve, pair can be made
Source of the gas continues to supply, until gas source or steam line recover normal supply.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is sectional view of the present utility model.
Embodiment
As shown in Figures 1 and 2, the gas control pressure opening and closing valve includes valve body 1, on valve body 1 be provided with main inlet channel 10,
Secondary inlet channel 11 and outlet passageway 12, gas source just access from main inlet channel 10, secondary source of the gas just from secondary inlet channel 11,
The gas of gas source or secondary source of the gas comes out by valve body 1 from outlet passageway 12, so as to be supplied for operated pneumatic valve.
In order to switch supply between gas source and secondary source of the gas, the utility model is provided with insertion chamber 13 in valve body 1, should
Insertion chamber 13 all communicates with main inlet channel 10, secondary inlet channel 11 and outlet passageway 12, in the outside of insertion chamber 13
Provided with lower spring chamber 30（Lower spring chamber 30 is in the periphery of insertion chamber 13）, lower spring chamber 30 is by main inlet channel 10
Connected with insertion chamber 13, matched in insertion chamber 13 and be provided with lower piston 2, lower spring 3 is provided with lower spring chamber 30, under
Spring 3, which is acted on lower piston 2, to be made lower piston 2, when lower piston 2 is blocked, lower piston 2 has just blocked main air inlet to lead to moving up
Road 10 communicates with insertion chamber 13.
Upper piston 4 is additionally provided with insertion chamber 13, the upper piston 4 is located at the top of lower piston 2, in insertion chamber 13
Outside is provided with upper spring chamber 50（Lower spring chamber 50 is also at the periphery of insertion chamber 13, is simply positioned at lower spring chamber 30
Top）, upper spring 5 is provided with the upper spring chamber 50, spring 5, which is acted on upper piston 4, on this makes upper piston 4 to moving up,
The through hole 20 for connecting secondary inlet channel 11 with outlet passageway 12 is provided with lower piston 2, the upper piston 4 can promote down when moving down
Piston 2 moves down, and can block the through hole 20 of lower piston 2；Being provided with above valve body 1 can drive what upper piston 4 moved down
Drive mechanism is pushed, the driving of drive mechanism is pushed by this, upper piston 4 just can be moved down so as to promote lower piston 2 to move down.
Operation principle is specifically described below：When the supply of gas source is normal, drive mechanism is pushed by a signal,
This pushes drive mechanism driving upper piston 4 and moved down, and upper piston 4, which moves down, just promotes lower piston 2 to move down, and can block down
The through hole 20 of piston 2, because the through hole 20 of lower piston 2 is obstructed, secondary inlet channel 11 is just separated with outlet passageway 12, and because of lower work
Plug 2 moves down, and lower spring chamber 30 connects main inlet channel 10 with insertion chamber 13, and the supply of such gas source just can be normal
Carry out, i.e., the gas of gas source is successively through main inlet channel 10, lower spring chamber 30, insertion chamber 13, finally from outlet passageway
12 go out.When the supply of gas source breaks down, signal, which is given to, pushes drive mechanism, pushes drive mechanism and no longer drives work
Plug 4 moves down, and such upper piston 4 moves up in the presence of upper spring 5, due to losing the effect of upper piston 4, lower piston
2 just move up in the presence of lower spring 3, and such lower piston 2 has just blocked main inlet channel 10 with penetrating the phase of chamber 13
Logical, the supply of such gas source can not be carried out, and because upper piston 4 no longer blocks the through hole 20 of lower piston 2, the gas of secondary source of the gas
Secondary inlet channel 11, insertion chamber 13, the through hole 20 of lower piston 2 are just passed sequentially through, is finally discharged from outlet passageway 12, it is so secondary
The supply of source of the gas is with regard to that can be normally carried out.
Independent mechanical driving structure can be used by pushing drive mechanism, can also be realized using pneumatic principle, due to
The medium of the switch valve is gas, therefore more reasonable using pneumatic principle, and the gas of gas source can be used as pressure to become
The signal of change, so more directly, structure is also more reasonable.It is of the present utility model in order to realize the driving that pushes of pneumatic structure
Drive mechanism is pushed to include bonnet 9, air chamber plate 6, upper diaphragm 8, lower diaphragm 7, upper diaphragm seat 80, adjusting bolt 91 and adjust
Whole spring 93, venthole 90 is provided with bonnet 9, air chamber plate 6 is arranged between valve body 1 and bonnet 9, and lower diaphragm 7 is arranged on valve
Between body 1 and air chamber plate 6, and positioned at the top of upper piston 4, and upper diaphragm 8 is arranged between bonnet 9 and air chamber plate 6, lower diaphragm 7
There is lower chamber between air chamber plate 6, there is upper chamber between upper diaphragm 8 and air chamber plate 6, air chamber plate 6 is provided with upper chamber
With the pressure hole 60 of lower chamber insertion, the signal stomata 61 communicated with upper chamber is additionally provided with air chamber plate 6, signal gas is from the signal
Stomata 61 enters, and upper diaphragm 8 is arranged on upper diaphragm seat 80, and adjustment spring 93 is arranged in bonnet 9, and upper diaphragm seat 80 is adjusting
Act on air chamber plate 6, and got lodged on the pressure hole 60 of air chamber plate 6 under the elastic force of spring 93, upper diaphragm seat 80 is provided with pressure release
Hole 82, the relief hole 82 can connect upper chamber with the inner chamber of bonnet 9, and the place suitable for reading of relief hole 82 is placed with steel ball 81, adjustment
Screw rod 91 is located on bonnet 9, and the lower end of adjusting bolt 91 is located at the top of steel ball 81.
It is specifically described below and pushes drive mechanism operation principle：Signal gas is directly collected in gas source, and is connect by pipeline
Enter on the signal stomata 61 onto air chamber plate, if gas source does not break down, then signal gas, which also has, meets setting
Air pressure, after signal gas enters in upper chamber, due to certain air pressure, therefore 8 one upward power of upper diaphragm are applied to, this
Sample upper diaphragm 8 can be moved up with upper matrix seat 80, and signal gas is put between matrix seat 80 and air chamber plate 6, due to gas
There is the pressure hole 60 by upper chamber and lower chamber insertion, therefore signal gas is just entered down by the pressure hole 60 on room plate 6
In air chamber, signal gas just acts on lower diaphragm 7 after entering in lower chamber and acted on downwards, so descend diaphragm 7 with regard to driving upper piston 4 to
Lower movement, gas source is with regard to can normally be supplied.When gas source breaks down, and signal gas does not reach setting air pressure, signal gas
Still enter in upper chamber, can also enter between matrix seat 80 and air chamber plate 6, only because air pressure is too low, can not make
Matrix seat 80 is lifted to certain height, and such adjusting bolt 91, which cannot be acted on steel ball 81, makes steel ball 81 to upper diaphragm seat
Relief hole 82 on 80 is sealed, and steel ball 81 forms pressure release in the presence of signal gas with the relief hole 82 on upper diaphragm seat 80
Gap, such signal gas just enter the inner chamber of bonnet 9 by relief hole, are then discharged by the venthole 90 on bonnet 9, by
Put in not enough power on upper piston 4, therefore upper piston 4 moves up in the presence of upper spring 5, lower piston 2 exists
Moved up in the presence of lower spring 3, such gas source stops supply, is switched to secondary source of the gas and is supplied.
It can just be switched in order to facilitate great signal gas air pressure is adjusted, to adapt to different supply occasions, this practicality
New adjusting bolt 91 is rotatably connected on bonnet 9, and is threaded with upper spring seat 92 in the adjusting bolt 91, is adjusted
Whole spring 93 is just arranged between upper spring seat 92 and upper diaphragm seat 80.By rotating adjusting bolt 91, spring just can be adjusted
Seat 92 moves up and down, and then adjustment spring 93 is adjusted to satisfactory elastic force.
Claims (3)
1. gas control pressure opening and closing valve, includes valve body（1）, it is characterised in that：The valve body（1）It is provided with main inlet channel
（10）, secondary inlet channel（11）And outlet passageway（12）, the valve body（1）It is interior to be provided with insertion chamber（13）, the lumen therethrough
Room（13）With main inlet channel（10）, secondary inlet channel（11）And outlet passageway（12）All communicate, the insertion chamber（13）
Outside be provided with lower spring chamber（30）, the lower spring chamber（30）By main inlet channel（10）With penetrating chamber（13）Even
It is logical, the insertion chamber（13）Interior matching is provided with lower piston（2）, the lower spring chamber（30）It is interior to be provided with lower spring（3）, it is described
Lower spring（3）Up act on lower piston（2）On, and lower piston can be made（2）Block main inlet channel（10）With penetrating chamber
（13）Communicate, the insertion chamber（13）It is interior to be provided with upper piston（4）, the upper piston（4）Positioned at lower piston（2）Top, it is described
Penetrate chamber（13）Outside be provided with upper spring chamber（50）, the upper spring chamber（50）It is interior to be provided with upper spring（5）, it is described on
Spring（5）Up act on upper piston（4）On, the valve body（1）Top, which is provided with, can drive upper piston（4）What is moved down pushes
Drive mechanism, the lower piston（2）It is provided with secondary inlet channel（11）With outlet passageway（12）The through hole of connection（20）, it is described
Upper piston（4）Lower piston can be promoted when moving down（2）Move down, and lower piston can be blocked（2）Through hole（20）.
2. gas control pressure opening and closing valve according to claim 1, it is characterised in that：The drive mechanism that pushes includes bonnet
（9）, air chamber plate（6）, upper diaphragm（8）, lower diaphragm（7）, upper diaphragm seat（80）, adjusting bolt（91）And adjustment spring（93）,
The bonnet（9）It is provided with venthole（90）, the air chamber plate（6）Installed in valve body（1）With bonnet（9）Between, the lower film
Piece（7）It is arranged on valve body（1）With air chamber plate（6）Between, and it is located at upper piston（4）Top, the upper diaphragm（8）It is arranged on bonnet
（9）With air chamber plate（6）Between, the lower diaphragm（7）With air chamber plate（6）Between there is lower chamber, the upper diaphragm（8）With air chamber
Plate（6）Between there is upper chamber, the air chamber plate（6）It is provided with the pressure hole by upper chamber and lower chamber insertion（60）, it is described
Air chamber plate（6）It is provided with the signal stomata communicated with upper chamber（61）, the upper diaphragm（8）It is arranged on upper diaphragm seat（80）On,
The adjustment spring（93）It is arranged on bonnet（9）It is interior, the upper diaphragm seat（80）In adjustment spring（93）Elastic force under act on
Air chamber plate（6）On, and get lodged in air chamber plate（6）Pressure hole（60）On, the upper diaphragm seat（80）It is provided with relief hole（82）, institute
State relief hole（82）Upper chamber can be connected with the inner chamber of bonnet, the relief hole（82）Place suitable for reading be placed with steel ball（81）,
The adjusting bolt（91）It is located at bonnet（9）On, the adjusting bolt（91）Lower end be located at steel ball（81）Top.
3. gas control pressure opening and closing valve according to claim 2, it is characterised in that：The adjusting bolt（91）Rotationally connect
It is connected on bonnet（9）On, the adjusting bolt（91）On be threaded with upper spring seat（92）, the adjustment spring（93）It is arranged on
Upper spring seat（92）With upper diaphragm seat（80）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733711.9U CN206874895U (en) | 2017-06-22 | 2017-06-22 | Gas control pressure opening and closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720733711.9U CN206874895U (en) | 2017-06-22 | 2017-06-22 | Gas control pressure opening and closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874895U true CN206874895U (en) | 2018-01-12 |
Family
ID=61334610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720733711.9U Active CN206874895U (en) | 2017-06-22 | 2017-06-22 | Gas control pressure opening and closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044536A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas-detecting device |
| CN110044535A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas detection method |
-
2017
- 2017-06-22 CN CN201720733711.9U patent/CN206874895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044536A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas-detecting device |
| CN110044535A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas detection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |