CN208778824U - A kind of air operated reversing valve - Google Patents
A kind of air operated reversing valve Download PDFInfo
- Publication number
- CN208778824U CN208778824U CN201821138182.9U CN201821138182U CN208778824U CN 208778824 U CN208778824 U CN 208778824U CN 201821138182 U CN201821138182 U CN 201821138182U CN 208778824 U CN208778824 U CN 208778824U
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- China
- Prior art keywords
- end cap
- valve body
- spool
- valve
- left end
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Abstract
The purpose of this utility model is that disclosing a kind of air operated reversing valve, it includes valve body, spool, left end cap and right end cap, and spool is arranged in valve body, and there are three be fixed together piston and air guide between adjacent piston for spool setting；The top of valve body is provided with first row stomata and second row stomata, the lower part of valve body is provided with air inlet, air inlet passes through the mutual air guide of spool with first row stomata and second row stomata respectively, left end cap and right end cap are separately positioned on the left and right side of valve body, it is provided with the first driving port on left end cap, the second driving port is provided on right end cap；It is operated by the way that gas-powered spool is mobile to complete fluid reversing, can detect pressure, the connection stitch of pressure sensor is inserted on pcb board or connecting cable, avoid signal interference, the existing factor of parasitic capacitance is reduced, sensitivity and accuracy are improved, is widely used in gas communication commutation and pressure measurement, it is particularly suitable for requiring temperature constant, the accurate use occasion for measuring pressure.
Description
Technical field
The utility model relates to a kind of air operated reversing valve, in particular to a kind of air operated reversing valve with pressure detecting.
Background technique
In the prior art, existing solenoid directional control valve and Pneumatic solenoid valves, because of the frequent work incessantly of solenoid valve
Make, very big, the gas that heat is transmitted to valve body and passed through of electromagnetic valve coil fever, the gas temperature for making valve body and passing through is unstable
Fixed, according to gas state equation PV=n R T, the variation of gas temperature can cause pressure change, and the measurement of pressure or pressure difference is just not
Accurately and constantly change.
Existing solenoid directional control valve and Pneumatic solenoid valves, because not being avoided that the influence to the temperature of gas, even if pressure
Force snesor has temperature compensation function, also will affect accuracy of measurement, is not suitable for precise measurement pressure or pressure difference.
It is accordingly required in particular to which a kind of air operated reversing valve, above-mentioned existing to solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of air operated reversing valves, in view of the deficiencies of the prior art, not by temperature shadow
It rings, it can precise measurement gas pressure, suitable precise measurement pressure or pressure difference.
The technical issues of the utility model is solved can be realized using following technical scheme:
A kind of air operated reversing valve, which is characterized in that it includes valve body, spool, left end cap and right end cap, the spool setting
In the valve body, there are three be fixed together piston and air guide between adjacent piston for the spool setting；The valve
The top of body is provided with first row stomata and second row stomata, and the lower part of the valve body is provided with air inlet, the air inlet point
Not with the first row stomata and second row stomata by the mutual air guide of spool, the left end cap and the right end cap are respectively set
It is provided with the first driving port in the left and right side of the valve body, the left end cap, is provided with second on the right end cap
Drive port.
In one embodiment of the utility model, cushion is provided between the left end cap and the valve body, it is described
Left end cap is closely connect by bolt with the valve body.
In one embodiment of the utility model, cushion is provided between the right end cap and the valve body, it is described
Right end cap is closely connect by bolt with the valve body.
In one embodiment of the utility model, end face seal is respectively arranged on the left end cap and the right end cap
Circle.
In one embodiment of the utility model, it is provided with gas port in the valve body, is provided on the gas port
The connection stitch of pressure sensor, the pressure sensor patches on pcb board or connecting cable.
Further, the pressure sensor is pressed on the valve body by pressing plate, and the pressing plate passes through bolt and the valve
Body is locked mutually.
The air operated reversing valve of the utility model completes fluid by the movement of gas-powered spool compared with prior art
Switching operation, operation driving medium is compressed air, is easy to get, and environmental protection；It can guarantee that working gas medium temperature does not have
Variation, is not influenced by other device temperatures；It can detecte pressure, what the connection stitch of pressure sensor can be convenient is inserted in
On pcb board or connecting cable, signal interference is avoided, reduces the existing factor of parasitic capacitance, improves sensitivity and accuracy；Tool
Have the advantages that structure is simple, constant temperature, be quick on the draw, be at low cost, is easy to operate, is widely used in gas communication commutation and pressure measurement
In, it is particularly suitable for requiring temperature constant, the purpose of this utility model is realized in the accurate use occasion for measuring pressure.
The characteristics of the utility model, sees the detailed description of the drawings of the present case and following preferable embodiment and obtains clear
Ground understands.
Detailed description of the invention
Fig. 1 is the schematic diagram of the air operated reversing valve main view state of the utility model；
Fig. 2 is the schematic diagram of the air operated reversing valve left view state of the utility model；
Fig. 3 is the schematic diagram of the air operated reversing valve overlooking state of the utility model；
Fig. 4 is the schematic diagram of the air operated reversing valve A-A section view state of the utility model；
Fig. 5 is the schematic diagram of the air operated reversing valve B-B section view state of the utility model；
Fig. 6 is the stereoscopic schematic diagram of the air operated reversing valve of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Embodiment
As shown in Figures 1 to 6, the air operated reversing valve of the utility model, it includes valve body 101, spool 103, left end cap 102
With right end cap 104, spool 103 is arranged in valve body 101, and air inlet P, gas vent C and gas vent D, valve are provided on valve body 101
There are three be fixed together piston and air guide between adjacent piston to the setting of core 103.
Left end cap 102 is equipped with driving port E and cushion 105, and blending bolt 107 is close by left end cap 102 and valve body 101
Connection.
Right end cap 104 is equipped with driving port F and cushion 106, and blending bolt 107 is close by right end cap 104 and valve body 101
Connection.Wherein left end cap 102 and right end cap 104 are equipped with end-face seal ring.
It is provided with gas port G in valve body 101, pressure sensor 109 is provided on gas port G, pressure sensor 109 is by pressing
Plate 110 is pushed down, and blending bolt 108 locks pressing plate 110 and valve body 101.
The connection stitch of pressure sensor 109 patches on pcb board or connecting cable.
The material of cushion 105 and cushion 106 is polytetrafluoroethylene (PTFE), nylon, polyurethane or softer material, can be kept away
The end face for exempting from spool 103 is contacted with cushion 105 and the hard of cushion 106, protects the end face of spool 103.
The working principle of the air operated reversing valve of the utility model is as follows:
When driving port F is to gas, port E is driven to lose gas, spool 103 is moved to the left the cushion 105 of limit, gas from
Air inlet P imports valve chamber, into gas vent D, and is sent to pneumatic equipment；Because of the isolation of the piston of spool 103, air inlet P and row
Stomata C is not turned on.
When driving port F loses gas, drive port E to gas, spool 103 moves right to the cushion 106 of limit, gas from
Air inlet P imports valve chamber, into gas vent C, and is sent to pneumatic equipment；Because of the isolation of the piston of spool 103, air inlet P and row
Stomata D is not turned on.
The air operated reversing valve of the utility model is operated by the way that gas-powered spool is mobile to complete fluid reversing, to reach
Pneumatic control, the purpose of air-flow conducting commutation.While gas imports valve chamber from air inlet P, regardless of air operated reversing valve changes
To gas can directly be detected by the compression film of gas port G contact pressure sensor 109, pressure sensor 109
The pressure of gas.
The connection stitch of pressure sensor 109 can be inserted on pcb board or connecting cable, avoids signal interference.This is practical
Novel air operated reversing valve does not have the contact of solenoid valve, and the factor for not causing gas temperature to change can accurately measure gas
Pressure.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of air operated reversing valve, which is characterized in that it includes valve body, spool, left end cap and right end cap, and the spool setting exists
In the valve body, there are three be fixed together piston and air guide between adjacent piston for the spool setting；The valve body
Top be provided with first row stomata and second row stomata, the lower part of the valve body is provided with air inlet, the air inlet difference
With the first row stomata and second row stomata by the mutual air guide of spool, the left end cap and the right end cap are separately positioned on
The left and right side of the valve body is provided with the first driving port on the left end cap, is provided with the second drive on the right end cap
It takes offence mouth.
2. air operated reversing valve as described in claim 1, which is characterized in that be provided between the left end cap and the valve body slow
Punching pad, the left end cap are closely connect by bolt with the valve body.
3. air operated reversing valve as described in claim 1, which is characterized in that be provided between the right end cap and the valve body slow
Punching pad, the right end cap are closely connect by bolt with the valve body.
4. air operated reversing valve as described in claim 1, which is characterized in that be respectively set on the left end cap and the right end cap
There is end-face seal ring.
5. air operated reversing valve as described in claim 1, which is characterized in that be provided with gas port, the air guide in the valve body
Pressure sensor is provided on hole, the connection stitch of the pressure sensor patches on pcb board or connecting cable.
6. air operated reversing valve as claimed in claim 5, which is characterized in that the pressure sensor is pressed in the valve by pressing plate
On body, the pressing plate is locked mutually by bolt with the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138182.9U CN208778824U (en) | 2018-07-18 | 2018-07-18 | A kind of air operated reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138182.9U CN208778824U (en) | 2018-07-18 | 2018-07-18 | A kind of air operated reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778824U true CN208778824U (en) | 2019-04-23 |
Family
ID=66153680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821138182.9U Active CN208778824U (en) | 2018-07-18 | 2018-07-18 | A kind of air operated reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946878A (en) * | 2020-08-14 | 2020-11-17 | 哲弗智能系统（上海）有限公司 | Sub-control valve, fire extinguishing device and fire extinguishing system |
-
2018
- 2018-07-18 CN CN201821138182.9U patent/CN208778824U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946878A (en) * | 2020-08-14 | 2020-11-17 | 哲弗智能系统（上海）有限公司 | Sub-control valve, fire extinguishing device and fire extinguishing system |
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