CN202187385U - Anti-negative pressure flow switch for pipe network overlaying system - Google Patents
Anti-negative pressure flow switch for pipe network overlaying system Download PDFInfo
- Publication number
- CN202187385U CN202187385U CN2011201987421U CN201120198742U CN202187385U CN 202187385 U CN202187385 U CN 202187385U CN 2011201987421 U CN2011201987421 U CN 2011201987421U CN 201120198742 U CN201120198742 U CN 201120198742U CN 202187385 U CN202187385 U CN 202187385U
- Authority
- CN
- China
- Prior art keywords
- pipe network
- negative pressure
- flow switch
- housing
- pipeline
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an anti-negative pressure flow switch for a pipe network overlaying system, which comprises a casing and a pipeline and is characterized in that an outwards-protruding connector is arranged on the lower portion of the casing, the wall body of the pipeline is provided with a connector corresponding to the connector, and the casing is in butt joint with the connector on the pipeline through the connector. An inspection device is arranged in the casing and connected with a transmission shaft which penetrates through the connector to extend into the pipeline, and blades are distributed along the circumferential direction of the end portion of the transmission shaft. The anti-negative pressure flow switch for the pipe network overlaying system has the advantages of being simple in structure and capable of accurately inspecting data, feeding back more accurate information to a device in time.
Description
Technical field
The utility model relates to flow switch, and particularly a kind of pipe network pressure-superposed system is with anti-negative pressure flow switch.
Background technology
At present, the non-negative pressure water-supply installation that occurs on the market, most vacuum suppresser class devices (pot type) that adopt are realized anti-negative pressure function by air in suction, the drain tank.It is safe inadequately depending merely on protection like this, in case vacuum suppresser breaks down, system is easy to produce negative pressure, thereby destroys a whole set of water system.
The utility model content
The utility model purpose is the deficiency that overcomes prior art, improves the security reliability of equipment, provides a kind of novel pipe network pressure-superposed system with anti-negative pressure flow switch.
The utility model is achieved in that pipe network pressure-superposed system is with anti-negative pressure flow switch; Comprise: housing, pipeline; It is characterized in that: said lower housing portion is provided with the joint of an outside protrusion; The wall body of pipeline is provided with the interface corresponding with this joint, and housing docks with interface on the pipeline through its joint; Enclosure interior is provided with checkout gear, and this checkout gear is connected with a power transmission shaft, and this power transmission shaft passes said joint and extends to pipe interior, circumferentially is furnished with blade in the end of power transmission shaft along it.
Said housing is an all-sealed structure.
Power transmission shaft in the said housing is a stainless steel material.
Said checkout gear is connected with the control system of pipe network pressure-superposed system.
Checkout gear is connected with a set screw in the said housing, and this set screw is passed the sidewall of housing.
The utility model advantage is: simple in structure, accurately detect data, and in time feed back information more accurately to equipment, prevent that supply equipment from excessively aspirating the city planting ductwork water source, anti-locking system produces negative pressure.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
For preventing the generation of pipe network negative pressure, the spy installs a protective device---flow switch at municipal administration water inlet pipe network place.This has strengthened the safety of water system greatly, and further the anti-negative pressure function of enhancement apparatus has really been realized non-negative pressure method of water supply.
Pipe network pressure-superposed system is with anti-negative pressure flow switch; Comprise: housing 1, pipeline 2; It is characterized in that: said housing 1 bottom is provided with the joint 3 of an outside protrusion, and the external surface of joint is provided with external screw thread, and the wall body of pipeline is provided with the interface corresponding with this joint 4; The inboard that is interface is provided with the internal thread that cooperates with this joint external screw thread, and housing docks with interface thread on the pipeline through its joint; Enclosure interior is provided with checkout gear, and this checkout gear is connected with a power transmission shaft 5, and this power transmission shaft passes said joint and extends to pipe interior, circumferentially is furnished with blade 6 in the end of power transmission shaft along it, and blade is immersed in the liquid 7 in the pipeline.
Said housing 1 is an all-sealed structure, and the power transmission shaft 5 in the housing is a stainless steel material, guarantees product operate as normal under various environment to greatest extent.
Said checkout gear is connected with the control system of pipe network pressure-superposed system.
Checkout gear is connected with a set screw 8 in the said housing, and this set screw is passed the sidewall of housing.According to the different flow requirement, can regulate through set screw; The set screw that turns clockwise flow increases, otherwise reduces.Heavy load microswitch with rapid action feature has been guaranteed the instantaneity of flow switch action.
The operating principle of this creation: utilize the variation of the mobile strength that variation produced of fluid flow to drive blade, thereby play the current cutting protection effect.Promptly when institute in the pipe network was lower than the setting flow value through fluid flow, flow switch sent the current cutting protection signal to the control system, makes water system out of service, prevented that pipe network from producing negative pressure.
Below only expressed the embodiment of the utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
The utility model advantage is: simple in structure, accurately detect data, and in time feed back information more accurately to equipment, prevent that supply equipment from excessively aspirating the city planting ductwork water source, anti-locking system produces negative pressure.
Claims (5)
1. pipe network pressure-superposed system is with anti-negative pressure flow switch; Comprise: housing, pipeline; It is characterized in that: said lower housing portion is provided with the outside joint of protrusion, and the wall body of pipeline is provided with the interface corresponding with this joint, and housing passes through its joint and docks with interface on the pipeline; Enclosure interior is provided with checkout gear, and this checkout gear is connected with a power transmission shaft, and this power transmission shaft passes said joint and extends to pipe interior, circumferentially is furnished with blade in the end of power transmission shaft along it.
2. pipe network pressure-superposed system according to claim 1 is with anti-negative pressure flow switch, and it is characterized in that: said housing is an all-sealed structure.
3. pipe network pressure-superposed system according to claim 1 is characterized in that with anti-negative pressure flow switch: the power transmission shaft in the said housing is a stainless steel material.
4. pipe network pressure-superposed system according to claim 1 is with anti-negative pressure flow switch, and it is characterized in that: said checkout gear is connected with the control system of pipe network pressure-superposed system.
5. pipe network pressure-superposed system according to claim 1 is characterized in that with anti-negative pressure flow switch: checkout gear is connected with a set screw in the said housing, and this set screw is passed the sidewall of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201987421U CN202187385U (en) | 2011-06-14 | 2011-06-14 | Anti-negative pressure flow switch for pipe network overlaying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201987421U CN202187385U (en) | 2011-06-14 | 2011-06-14 | Anti-negative pressure flow switch for pipe network overlaying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187385U true CN202187385U (en) | 2012-04-11 |
Family
ID=45918845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201987421U Expired - Fee Related CN202187385U (en) | 2011-06-14 | 2011-06-14 | Anti-negative pressure flow switch for pipe network overlaying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202187385U (en) |
-
2011
- 2011-06-14 CN CN2011201987421U patent/CN202187385U/en not_active Expired - Fee Related
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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: 20120411 Termination date: 20120614 |