CN201599462U - Fluid decompression safety valve - Google Patents
Fluid decompression safety valve Download PDFInfo
- Publication number
- CN201599462U CN201599462U CN2009201759663U CN200920175966U CN201599462U CN 201599462 U CN201599462 U CN 201599462U CN 2009201759663 U CN2009201759663 U CN 2009201759663U CN 200920175966 U CN200920175966 U CN 200920175966U CN 201599462 U CN201599462 U CN 201599462U
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- piston
- valve
- valve body
- right cylinder
- left cylinder
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Abstract
The utility model relates to a fluid decompression safety valve, which comprises a valve, a left cylinder and a right cylinder, wherein the left cylinder and the right cylinder are disposed on the top of the valve, the top of the left cylinder is communicated with the valve via a pipeline, the left cylinder is communicated with the right cylinder via a pipeline, and manual reset valves are disposed on the pipelines. The fluid decompression safety valve employs liquid mechanics principle, when a gas or liquid pipe network is in leakage and sudden decompression, and the pipelines are closed through a series of actions of a machinery mechanism, thereby realizing the purpose of safety protection. The fluid decompression safety valve can be widely applied on occasions with inconvenient electric power transmission, unstable electric power and inflammable and explosive possibility, and has safe and reliable use and long service life.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of fluid pressure relief safety valve.
Background technique
The protection of leakage such as municipal tap water pipe network, municipal gaspipe network, home-use tap water pipe network, home-use gaspipe network, industrial liquid pipe network and the gas pipeline network in the daily life at present and rapid decompression is mainly blinded off a line by the action of sensor control electromagnetic valve; to reach the purpose of safety protection; but carry inconvenience, unstable power and inflammable and explosive occasion at electric power; this technology exists very big defective, exists potential safety hazard.So be badly in need of now a kind of automatically, stable, the control valve that do not need the inductance signal.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to propose a kind of fluid pressure relief safety valve.
For achieving the above object, the utility model is taked following technological scheme:
A kind of fluid pressure relief safety valve, it comprises valve body, left cylinder and right cylinder, and described left cylinder and right cylinder are located at the top of valve body, and described left cylinder head is communicated with valve body by a pipeline, described left cylinder and right cylinder have the hand reset valve by pipeline connection on the described pipeline.
Described valve body middle part is provided with a liquid jetting device, and described liquid jetting device is fixed on the interior dividing plate of valve body, and described dividing plate front portion is a vacuum chamber; The back of described dividing plate is provided with a trapezoidal fluid stopping plate, is provided with a circular hole in the middle of the described trapezoidal fluid stopping plate.
Described left cylinder is located on the outer wall of the corresponding liquid jetting device of valve body position, and the central position of the corresponding valve outer wall of described left cylinder is provided with a through hole, and the inside of described left cylinder is provided with a big piston, and described big piston and left cylinder contact segment are provided with seal ring; Described big piston central position is provided with a small piston, and described small piston cross section matches with the cross section size of through hole; Described big piston bottom is provided with a big spring that is used to support big piston, and described small piston bottom is provided with a little spring that is used to support small piston.
The central position of described right cylinder is corresponding with the position of described circular hole, is located on the outer wall of valve body, and described right cylinder interior is provided with a piston, and described piston and right cylinder contact segment are provided with seal ring, and described lower part of piston is provided with the spring that is used for support piston; Be provided with a connecting rod in the piston bottom, connecting rod enters in the valve body by another through hole on the outer wall of valve body, the bottom of described connecting rod is provided with a valve plate, described valve plate bottom is pasted with a valve plate sealing gasket, the central position of described piston, connecting rod and valve plate is corresponding with the central position of circular hole, and described valve plate and valve plate sealing gasket match with the cross section size of circular hole.
The utility model is owing to take above technological scheme, and it has the following advantages:
The utility model fluid pressure relief safety valve is to rely on fluid mechanics principle, when gas or Liquid tube net leakage and rapid decompression, leans on the action of a series of mechanical mechanisms to realize closing of pipeline, realizes the purpose of safety protection.The utility model can be widely used in electric power and carry inconvenience, unstable power and inflammable and explosive occasion, and safe and reliable, long service life.
Description of drawings
Fig. 1 is a generalized section of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model fluid pressure relief safety valve, it comprises valve body 1, left cylinder 2 and right cylinder 3, wherein left cylinder 2 and right cylinder 3 are located at the top of valve body 1, cylinder 2 tops, a left side are communicated with valve body 1 by a pipeline 4, left side cylinder 2 and right cylinder 3 are communicated with by pipeline 5, are provided with hand reset valve 51 on pipeline 5.
Described valve body 1 middle part is provided with a liquid jetting device 11, and liquid jetting device 11 is fixed on the dividing plate 12 in the valve body 1, and dividing plate 12 front portions are a vacuum chamber 17; Be provided with a trapezoidal fluid stopping plate 13 in dividing plate 12 back of valve body 1, be provided with a circular hole 14 in the middle of the trapezoidal fluid stopping plate 13.
Described left cylinder 2 is located on the outer wall of valve body 1 corresponding liquid jetting device 11 positions, on the central position of left cylinder 2 corresponding valve body 1 outer walls, be provided with a through hole 15, be provided with a big piston 21 in the inside of left cylinder 2, be provided with seal ring 23 in big piston 21 and left cylinder 2 contact segments; Be provided with a small piston 22 on big piston 21 central positions, small piston 22 cross sections match with the cross section size of through hole 15; Support by a big spring 24 in big piston 21 bottoms, support by a little spring 25 in small piston 22 bottoms.
The central position of described right cylinder 3 is corresponding with the position of described circular hole 14, be located on the outer wall of valve body 1, be provided with a piston 31 in right cylinder 3 inside, be provided with seal ring 32, be provided with the spring 36 that is used for support piston 31 in the bottom of piston 31 in piston 31 and right cylinder 3 contact segments; Be provided with a connecting rod 33 in piston 31 bottoms, connecting rod 33 enters in the valve body 1 by another through hole 16 on the outer wall of valve body 1, be provided with a valve plate 34 in the bottom of connecting rod 33, be pasted with a valve plate sealing gasket 35 in valve plate 34 bottoms, the central position of piston 31, connecting rod 33 and valve plate 34 is corresponding with the central position of circular hole 14, and valve plate 34 and valve plate sealing gasket 35 match with the cross section size of circular hole 14.
The flow velocity of liquid jetting device 11 of flowing through when the pipe leakage at the utility model fluid pressure relief safety valve rear portion or decompression can increase suddenly, gas or liquid are when high speed flow is crossed the jet mouth of liquid jetting device 11 of fluid pressure relief safety valve the inside suddenly, can be at the vacuum chamber 17 shaping vacuum states of liquid jetting device, the big piston 21 of left side cylinder 2 overcomes big spring 24 and little spring 25 under the effect of the vacuum power of the vacuum chamber 17 of liquid jetting device 11 elastic force moves downward, driving small piston 22 simultaneously moves downward, the pipeline 4 at left cylinder 2 tops is opened simultaneously, gas or liquid through valve body 1 enter left cylinder 2 by pipeline 4,5 enter right cylinder 3 by the road again, piston 31 in the right cylinder 3 overcomes spring 35 and down moves under the effect of air pressure or hydraulic pressure, thereby driving valve plate 34 also moves downward, contact on the circular hole 14 until valve plate 34, valve body 1 is cut off flowing of gas or liquid.Though this moment, valve plate 34 cut off the gas of the valve body 1 of flowing through or liquid, still keep-up pressure in the left cylinder 2 makes valve plate 34 remain on closed condition always.The utility model fluid pressure relief safety valve is manually opened hand reset valve 51 and is made right cylinder 3 pressure releases after revealing trouble shooting, and valve plate 34 is opened under the effect of spring 36, and gas or liquid can flow through from valve body 1 again.When not reaching the work rating value as gas or leaked liquid amount, though gas or flow of liquid are crossed liquid jetting device 11 can be in the certain vacuum of vacuum chamber 17 internal shapings, but this vacuum is not enough to overcome the elastic force of big spring 24 and little spring 25, thereby can not promote big piston 21 and small piston 22 moves downward, can not influence normal air feed or water supply.The work rating value of the utility model fluid pressure relief safety valve can be adjusted by regulating stretching of liquid jetting device 11.
A kind of fluid pressure relief safety valve of the utility model is at leakage and rapid decompressions such as the municipal tap water pipe network in the present daily life, municipal gaspipe network, home-use tap water pipe network, home-use gaspipe network, industrial liquid pipe network and gas pipeline networks, and pipe network can not in time be closed automatically and cause the problem of life and property loss to design.The utility model is to rely on fluid mechanics principle, when gas or Liquid tube net leakage and rapid decompression, leans on the action of a series of mechanical mechanisms to realize closing of pipeline, realizes the purpose of safety protection.This technology can be widely used in electric power and carry inconvenience, unstable power and inflammable and explosive occasion.The fluid pressure relief safety valve can be closed when pipeline network leak and rapid decompression automatically.
The utility model only describes with the foregoing description; the structure of each parts, the position is set and connects and all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside protection domain of the present utility model.
Claims (5)
1. fluid pressure relief safety valve, it is characterized in that: it comprises valve body, left cylinder and right cylinder, described left cylinder and right cylinder are located at the top of valve body, described left cylinder head is communicated with valve body by a pipeline, described left cylinder and right cylinder are by pipeline connection, and described pipeline is provided with the hand reset valve.
2. described a kind of fluid pressure relief safety valve as claimed in claim 1 is characterized in that: described valve body middle part is provided with a liquid jetting device, and described liquid jetting device is fixed on the interior dividing plate of valve body, and described dividing plate front portion is a vacuum chamber; The back of described dividing plate is provided with a trapezoidal fluid stopping plate, is provided with a circular hole in the middle of the described trapezoidal fluid stopping plate.
3. described a kind of fluid pressure relief safety valve as claimed in claim 1 or 2, it is characterized in that: described left cylinder is located on the outer wall of the corresponding liquid jetting device of valve body position, the central position of the corresponding valve outer wall of described left cylinder is provided with a through hole, the inside of described left cylinder is provided with a big piston, and described big piston and left cylinder contact segment are provided with seal ring; Described big piston central position is provided with a small piston, and described small piston cross section matches with the cross section size of through hole; Described big piston bottom is provided with a big spring that is used to support big piston, and described small piston bottom is provided with a little spring that is used to support small piston.
4. described a kind of fluid pressure relief safety valve as claimed in claim 1 or 2, it is characterized in that: the central position of described right cylinder is corresponding with the position of described circular hole, be located on the outer wall of valve body, described right cylinder interior is provided with a piston, described piston and right cylinder contact segment are provided with seal ring, and described lower part of piston is provided with the spring that is used for support piston; Be provided with a connecting rod in the piston bottom, connecting rod enters in the valve body by another through hole on the outer wall of valve body, the bottom of described connecting rod is provided with a valve plate, described valve plate bottom is pasted with a valve plate sealing gasket, the central position of described piston, connecting rod and valve plate is corresponding with the central position of circular hole, and described valve plate and valve plate sealing gasket match with the cross section size of circular hole.
5. described a kind of fluid pressure relief safety valve as claimed in claim 3, it is characterized in that: the central position of described right cylinder is corresponding with the position of described circular hole, be located on the outer wall of valve body, described right cylinder interior is provided with a piston, described piston and right cylinder contact segment are provided with seal ring, and described lower part of piston is provided with the spring that is used for support piston; Be provided with a connecting rod in the piston bottom, connecting rod enters in the valve body by another through hole on the outer wall of valve body, the bottom of described connecting rod is provided with a valve plate, described valve plate bottom is pasted with a valve plate sealing gasket, the central position of described piston, connecting rod and valve plate is corresponding with the central position of circular hole, and described valve plate and valve plate sealing gasket match with the cross section size of circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201759663U CN201599462U (en) | 2009-08-28 | 2009-08-28 | Fluid decompression safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201759663U CN201599462U (en) | 2009-08-28 | 2009-08-28 | Fluid decompression safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599462U true CN201599462U (en) | 2010-10-06 |
Family
ID=42810517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201759663U Expired - Fee Related CN201599462U (en) | 2009-08-28 | 2009-08-28 | Fluid decompression safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511087A (en) * | 2014-09-12 | 2017-12-26 | 石狮梵源服饰有限公司 | A kind of blender |
-
2009
- 2009-08-28 CN CN2009201759663U patent/CN201599462U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511087A (en) * | 2014-09-12 | 2017-12-26 | 石狮梵源服饰有限公司 | A kind of blender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20110828 |