CN208778823U - A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body - Google Patents
A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body Download PDFInfo
- Publication number
- CN208778823U CN208778823U CN201821138156.6U CN201821138156U CN208778823U CN 208778823 U CN208778823 U CN 208778823U CN 201821138156 U CN201821138156 U CN 201821138156U CN 208778823 U CN208778823 U CN 208778823U
- Authority
- CN
- China
- Prior art keywords
- resistance
- positive pressure
- cylinder
- valve body
- heavy caliber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Details Of Valves (AREA)
Abstract
The purpose of this utility model is that disclosing a kind of resistance to positive pressure and vacuum heavy caliber integrated valve body, it includes cylinder and valve seat, the cylinder is interconnected by adapter flange and the valve seat, it is respectively arranged with the first joint flange and the second joint flange on the valve seat, is provided with seal head on the piston rod of the cylinder；Compared with prior art, utilize the flexible of cylinder, realization sealing is contacted with cavity wall by piston seal, the thrust of cylinder piston rod makes it, and both resistance to positive pressure can also vacuum-resistant, it can effectively seal, structure is simple and safe, easy disassembly maintenance, both it had saved space and has been also greatly reduced cost, and realized the purpose of this utility model.
Description
Technical field
The utility model relates to a kind of heavy caliber integrated valve body, in particular to the heavy caliber of a kind of resistance to positive pressure and vacuum is integrated
Valve body.
Background technique
In the prior art, both there is the positive pressure of inflation in vacuum helium inspection equipment, and there are rarefied negative pressure, that is, vacuum, pipes
Lu Yaoyou valve controls on-off.Wheel hub helium examines equipment large capacity, vacuumizes and fills helium heavy caliber big flow is needed to improve efficiency,
The positive pressure that resistance to should rush in helium also wants resistance to rarefied vacuum.
Vacuum helium, which examines equipment, needs large quantities of valve bodies using heavy caliber big flow, is the valve of heavy caliber big flow on the market now
Body is expensive, and to reduce cost, it is of great value for developing a both handy also economical and practical integrated valve body.
It is accordingly required in particular to which a kind of resistance to positive pressure and vacuum heavy caliber integrated valve body, above-mentioned existing to solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of resistance to positive pressures and vacuum heavy caliber integrated valve body, for the prior art
Deficiency can effectively resist positive pressure and also be resistant to vacuum, solve insufficient space, problem at high cost.
The technical issues of the utility model is solved can be realized using following technical scheme:
A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body, which is characterized in that it includes cylinder and valve seat, and the cylinder is logical
It crosses adapter flange and the valve seat interconnects, be respectively arranged with the first joint flange and the second joint flange on the valve seat,
Seal head is provided on the piston rod of the cylinder.
In one embodiment of the utility model, first joint flange is by the first fastened by screw in the valve seat
On.
In one embodiment of the utility model, second joint flange is fastened on institute by end caps and screw rod
It states on valve seat.
In one embodiment of the utility model, the cylinder passes through the second fastened by screw on the adapter flange,
The adapter flange is by the second fastened by screw on the valve seat.
In one embodiment of the utility model, first joint flange, the second joint flange, end caps and turn
It is respectively provided with third O-ring between acting flange and the valve seat, prevents valve body gas leakage.
In one embodiment of the utility model, the 4th O-ring is provided between the cylinder and the adapter flange
With the 5th O-ring, valve body gas leakage is prevented.
In one embodiment of the utility model, the seal head is fixed on described by sealed screw and holding screw
On the piston rod of cylinder.
In one embodiment of the utility model, the first O-ring is provided in the end face groove of the seal head.
In one embodiment of the utility model, it is provided with the second O-ring between the seal head and sealed screw, prevents
Only pass through gap air leak.
The resistance to positive pressure and vacuum heavy caliber integrated valve body of the utility model, compared with prior art, using the flexible of cylinder,
Contact with cavity wall realization sealing by piston seal, the thrust of cylinder piston rod make its both resistance to positive pressure can also vacuum-resistant, energy
Enough effective sealings, structure is simple and safe, and easy disassembly maintenance had both saved space and has been also greatly reduced cost, and realized this reality
With novel purpose.
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 resistance to positive pressure of the utility model and the structural schematic diagram of vacuum heavy caliber integrated valve body；
Fig. 2 is the structural schematic diagram of the profile status of the utility model；
Fig. 3 is the structural schematic diagram of the cylinder of the utility model.
Wherein, the first joint flange of 1-, the second joint flange of 2-, 3- screw rod, 4- end caps, 5- valve seat, 6- cylinder, 7-
Sealed screw, the first O-ring of 8-, 9- seal head, the second O-ring of 10-, 11- holding screw, 12- third O-ring, the 4th O of 13-
Type circle, the 5th O-ring of 14-, the first screw of 15-, the second screw of 16-, 17- adapter flange.
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 Figure 1 to Figure 3, the resistance to positive pressure of the utility model and vacuum heavy caliber integrated valve body, it includes cylinder 6 and valve
Seat 5, cylinder 6 are interconnected by adapter flange 17 and valve seat 5, are respectively arranged with the first joint flange 1 and second on valve seat 5 and are connect
Head flange 2 is provided with seal head 9 on the piston rod of cylinder 6.
In the present embodiment, the first joint flange 1 is fastened on valve seat 5 by the first screw 15.Second joint flange 2 is logical
It crosses end caps 4 and screw rod 3 is fastened on valve seat 5.
In the present embodiment, cylinder 6 is fastened on adapter flange 17 by the second screw 16, and adapter flange 17 passes through second
Screw 16 is fastened on valve seat 5.
In the present embodiment, the first joint flange 1, the second joint flange 2, end caps 4 and adapter flange 17 and valve seat 5
Between be respectively provided with third O-ring 12, prevent valve body gas leakage.
In the present embodiment, it is provided with the 4th O-ring 13 and the 5th O-ring 14 between cylinder 6 and adapter flange 17, prevents
Valve body gas leakage.
In the present embodiment, seal head 9 is fixed on the piston rod of cylinder 6 by sealed screw 7 and holding screw 11.It is close
The first O-ring 8 is provided in the end face groove of end socket 9.It is provided with the second O-ring 10 between seal head 9 and sealed screw 7, prevents
Pass through gap air leak.
The resistance to positive pressure of the utility model and the working principle of vacuum heavy caliber integrated valve body are as follows:
First joint flange 1 is fastened on valve seat 5 by the first screw 15, and the second joint flange 2 and end caps 4 pass through
Screw rod 3 is fastened on valve seat 5, and the first joint flange 1 and the second joint flange 2 are connect with the standard flange on pipeline, cylinder 6
It is fastened on adapter flange 17 by the second screw 16, adapter flange 17 is fastened on valve seat 5 by the second screw 16, and first connects
It is respectively provided with third O-ring 12 between head flange 1, the second joint flange 2, end caps 4 and adapter flange 17 and valve seat 5, is prevented
Only valve body gas leakage.
4th O-ring 13 and the 5th O-ring 14 are housed between cylinder 6 and adapter flange 17, prevent valve body gas leakage.Seal head
9 are fixed on the piston rod of cylinder 6 by sealed screw 7 and holding screw 11, and the first O-ring 8 is mounted on the end face of seal head 9
In slot.It when filling helium, when cylinder 6 stretches out, pushes seal head 9 and is moved along the cavity of valve seat 5, until the top of seal head 9 is arrived
End face inner wall squeezes the first O-ring 8, and then seals up upper port.When evacuating, 6 piston rod of cylinder is retracted, and interface is connected.
Second O-ring 10 is housed between sealed screw 7 and seal head 9, prevents from passing through gap air leak.
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 (9)
1. a kind of resistance to positive pressure and vacuum heavy caliber integrated valve body, which is characterized in that it includes cylinder and valve seat, and the cylinder passes through
Adapter flange and the valve seat interconnect, and are respectively arranged with the first joint flange and the second joint flange, institute on the valve seat
It states and is provided with seal head on the piston rod of cylinder.
2. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that first joint flange
Through the first fastened by screw on the valve seat.
3. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that second joint flange
It is fastened on the valve seat by end caps and screw rod.
4. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that the cylinder passes through second
Fastened by screw is on the adapter flange, and the adapter flange is by the second fastened by screw on the valve seat.
5. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that first joint method
Third O-ring is respectively provided between orchid, the second joint flange, end caps and adapter flange and the valve seat.
6. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that the cylinder and described turn
The 4th O-ring and the 5th O-ring are provided between acting flange.
7. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that the seal head passes through close
Envelope screw and holding screw are fixed on the piston rod of the cylinder.
8. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that the end face of the seal head
The first O-ring is provided in slot.
9. resistance to positive pressure as described in claim 1 and vacuum heavy caliber integrated valve body, which is characterized in that the seal head and sealing
The second O-ring is provided between screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138156.6U CN208778823U (en) | 2018-07-18 | 2018-07-18 | A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821138156.6U CN208778823U (en) | 2018-07-18 | 2018-07-18 | A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778823U true CN208778823U (en) | 2019-04-23 |
Family
ID=66153598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821138156.6U Active CN208778823U (en) | 2018-07-18 | 2018-07-18 | A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778823U (en) |
-
2018
- 2018-07-18 CN CN201821138156.6U patent/CN208778823U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106949253A (en) | Inflate piston seal vacuum gate valve | |
| CN208778823U (en) | A kind of resistance to positive pressure and vacuum heavy caliber integrated valve body | |
| CN202629095U (en) | Automatic blocking inflation valve | |
| CN206738788U (en) | A kind of preferably municipal blow-off line of sealing | |
| CN103542219A (en) | Self-operated sealing sleeve compensator | |
| CN103485995B (en) | A kind of high purity ammonia low temperature reciprocating pump | |
| CN201443488U (en) | Filler structure of piston-type compressor | |
| CN208579872U (en) | A kind of outside diameter automatic sealing device | |
| CN203560491U (en) | High-performance welding ball valve | |
| CN107448603A (en) | A kind of piston rod | |
| CN209557837U (en) | A kind of drainage system pipe that air-tightness is good | |
| CN208458946U (en) | A kind of airtight closure tooling of gearbox differential mechanism oil sealing | |
| CN208397543U (en) | A kind of rapid-maintenance pipeline leakage device | |
| CN202371175U (en) | Pneumatic sealing movable joint | |
| CN207647475U (en) | A kind of novel Anti-partial-wear beaming rod connection hoop | |
| CN206738612U (en) | Inflate piston seal vacuum gate valve | |
| CN219453160U (en) | Pipeline connection self-sealing structure for offshore wind power test platform | |
| CN216205294U (en) | Furnace door double-seal ring sealing structure of aluminum brazing furnace | |
| CN219734590U (en) | Pipeline non-stop conveying plugging device suitable for various pipe diameters | |
| CN220647242U (en) | Temporary plugging mechanism for petroleum conveying pipeline | |
| CN214242248U (en) | Ultra-high temperature resistant packaging bag inner bag | |
| CN209688290U (en) | A kind of close metal tube of sealing | |
| CN220268426U (en) | Pipeline sealing ring assembly | |
| CN203549367U (en) | Vacuumizing device | |
| CN220623064U (en) | Integrally formed valve seat for oil circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |