CN203130585U - Suction stop valve of self-suction centrifugal pump - Google Patents
Suction stop valve of self-suction centrifugal pump Download PDFInfo
- Publication number
- CN203130585U CN203130585U CN 201320088492 CN201320088492U CN203130585U CN 203130585 U CN203130585 U CN 203130585U CN 201320088492 CN201320088492 CN 201320088492 CN 201320088492 U CN201320088492 U CN 201320088492U CN 203130585 U CN203130585 U CN 203130585U
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- Prior art keywords
- centrifugal pump
- connecting rod
- suction
- spring
- stop valve
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Abstract
The utility model discloses a suction stop valve of a self-suction centrifugal pump. The suction stop valve comprises a centrifugal pump inlet connection pipe and a valve plate, and one side of the valve plate is movably connected with a high flange connection opening of the inlet connection pipe in an embedded mode. The suction stop valve further comprises a first connecting rod, a second connecting rod, a spring seat, a spring, an elastic ball and a sealing seat, wherein the spring is arranged on the pipe wall of the inlet connection pipe and on an air hole, the sealing seat, the elastic ball and the spring are arranged in the spring seat sequentially, the air hole is closed when the elastic ball falls to the sealing seat, one end of the first connecting rod is hinged with the center of the valve plate, the other end of the first connecting rod is hinged with the second connecting rod, the second connecting rod penetrates through the air hole and is hinged with the pipe wall of the inlet connection pipe, and the free end of the second connecting rod abuts against the elastic ball. The suction stop valve is applicable to the self-suction centrifugal pump working in harsh environments, plays a reliable one-way stopping role when the centrifugal pump stops working to enable the centrifugal pump to store sufficient disposable self-suction re-starting liquid, ensures the centrifugal pump can suck and discharge the liquid normally, improves the working efficiency of the centrifugal pump effectively, and prolongs the service life of the centrifugal pump effectively.
Description
Technical field
The utility model relates to a kind of suction stop valve of self priming centrifugal pump.
Background technique
At present most self priming centrifugal pump is when just bringing into use, generally can both normally play the effect of pump drainage liquid, but in actual use, through operation after a while, in some specific places, the suction stop valve in a lot of centrifugal pumps is owing to be subjected to temperature, sewage environment, and the influence of factor such as pump shaft gas leakage, often need manually to intervene and add water, can make the centrifugal pump proper functioning; Untimely as manual intervention, then the infringement to centrifugal pump will be quite big, reduces the working life of centrifugal pump, influences the real work efficient of centrifugal pump.The tradition suction stop valve is arranged in the entrance sleeve of centrifugal pump, stop valve valve plate one side is movably connected in the high-order flange-interface of entrance sleeve, when the pump shaft impeller was carried out work, liquid drive import valve plate became open mode in the impeller-driven pump, realizes the liquid pump drainage, when the pump shaft impeller is in halted state, because the pressure effect dorsad of pump discharge liquid, valve plate is closed, and plays unidirectional by effect, make and store certain effectively liquid in the pump, be convenient to the startup of next pump; But actual such pump in use for some time, often because institute's pump drainage liquid does not totally reach factor affecting such as ambient temperature, the suction stop valve assembly can not play unidirectional by effect fully, if it is untimely that this moment, centrifugal pump started the manual intervention diversion, the pump housing will take place to do to be inhaled, and influences centrifugal pump working efficiency and actual life.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of suction stop valve of self priming centrifugal pump, this stop valve adapts to the self priming centrifugal pump of working under the rugged environment, when self priming centrifugal pump quits work, play reliably unidirectional by effect, make the interior storage of centrifugal pump body q.s can arrange self-priming and restart liquid, guarantee normally suction liquid of centrifugal pump, working efficiency and the working life of effectively improving centrifugal pump.
For solving the problems of the technologies described above, the suction stop valve of the utility model self priming centrifugal pump comprises centrifugal pump entrance sleeve and valve plate, described entrance sleeve connects by flange, described entrance sleeve tube wall is provided with air hole, described valve plate one side activity is spliced in the high-order flange-interface of described entrance sleeve, this stop valve also comprises first connecting rod, second connecting rod, spring seat, spring, hoodle and sealing seat, described spring seat is located at described entrance sleeve tube wall and is positioned on the described air hole, described sealing seat, hoodle and spring are located in the described spring seat successively, described air hole sealing when described hoodle falls to being positioned at described sealing seat, the hinged described valve plate of described first connecting rod one end center, the other end and described second connecting rod one end are hinged, the described second connecting rod the other end passes described air hole and is articulated in described entrance sleeve tube wall, and the free end of described second connecting rod is against described hoodle.
Because the suction stop valve of the utility model self priming centrifugal pump has adopted technique scheme, be that this stop valve comprises centrifugal pump entrance sleeve and valve plate, entrance sleeve connects by flange, the entrance sleeve tube wall is provided with air hole, valve plate one side activity is spliced in the high-order flange-interface of entrance sleeve, this stop valve also comprises first connecting rod, second connecting rod, spring seat, spring, hoodle and sealing seat, spring seat is located at the entrance sleeve tube wall and is positioned on the air hole, sealing seat, hoodle and spring are located in the spring seat successively, air hole sealing when hoodle falls to being positioned at sealing seat, the hinged valve plate of first connecting rod one end center, the other end and second connecting rod are hinged, second connecting rod passes air hole and is articulated in the entrance sleeve tube wall, and the free end of second connecting rod is against hoodle.This stop valve adapts to the self priming centrifugal pump of working under the rugged environment, when self priming centrifugal pump quits work, play reliably unidirectional by effect, make the interior storage of centrifugal pump body q.s can arrange self-priming and restart liquid, guarantee normally suction liquid of centrifugal pump, working efficiency and the working life of effectively improving centrifugal pump.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the suction stop valve structural representation of the utility model self priming centrifugal pump;
The view that Fig. 2 opens for this suction stop valve.
Embodiment
As shown in Figure 1, the suction stop valve of the utility model self priming centrifugal pump comprises centrifugal pump entrance sleeve 1 and valve plate 4, described entrance sleeve 1 connects by flange 2, described entrance sleeve 1 tube wall is provided with air hole 3, described valve plate 4 one side activities are spliced in high-order flange 2 interfaces of described entrance sleeve 1, this stop valve also comprises first connecting rod 5, second connecting rod 6, spring seat 7, spring 9, hoodle 10 and sealing seat 8, described spring seat 7 is located at described entrance sleeve 1 tube wall and is positioned on the described air hole 3, described sealing seat 8, hoodle 10 and spring 9 are located in the described spring seat 7 successively, described air hole 3 sealings when described hoodle 10 falls to being positioned at described sealing seat 8, the hinged described valve plate of described first connecting rod 5 one ends 4 centers, the other end and described second connecting rod 6 one ends are hinged, described second connecting rod 6 the other ends pass described air hole 3 and are articulated in described entrance sleeve 1 tube wall, and the free end of described second connecting rod 6 is against described hoodle 10.
As shown in Figure 2, when the centrifugal pump proper functioning, the liquid entrance sleeve 1 of flowing through boosts valve plate 4, suction stop valve is opened, this moment, valve plate 4 turned an angle by the articulating point of first connecting rod 5 drive second connecting rods 6 along entrance sleeve 1 tube wall, made second connecting rod 6 free ends break away from hoodle 10, and hoodle 10 falls to being positioned on the sealing seat 8 in the effect of spring 9, thereby make air hole 3 sealings, the centrifugal pump proper functioning.When centrifugal pump stops, as shown in Figure 1, valve plate 4 resets under the effect of liquid back pressure and closes, this moment, second connecting rod 6 free ends were against hoodle 10 and overcome spring 9 active forces with hoodle 10 jack-up, air hole 3 is opened and is communicated with atmosphere, make valve plate 4 be in closed condition all the time, thereby effectively cut off liquid in the pump housing, guarantee effective liquid of contain capacity in the pump housing, make things convenient for the startup again of centrifugal pump, avoid the generation of the dried suction phenomenon of the pump housing, thereby guarantee the suction stop valve performance under the factor such as rugged environment in the long-term using process of centrifugal pump, working efficiency and the working life of improving self priming centrifugal pump.
Claims (1)
1. the suction stop valve of a self priming centrifugal pump, comprise centrifugal pump entrance sleeve and valve plate, described entrance sleeve connects by flange, described entrance sleeve tube wall is provided with air hole, described valve plate one side activity is spliced in the high-order flange-interface of described entrance sleeve, it is characterized in that: also comprise first connecting rod, second connecting rod, spring seat, spring, hoodle and sealing seat, described spring seat is located at described entrance sleeve tube wall and is positioned on the described air hole, described sealing seat, hoodle and spring are located in the described spring seat successively, described air hole sealing when described hoodle falls to being positioned at described sealing seat, the hinged described valve plate of described first connecting rod one end center, the other end and described second connecting rod one end are hinged, the described second connecting rod the other end passes described air hole and is articulated in described entrance sleeve tube wall, and the free end of described second connecting rod is against described hoodle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088492 CN203130585U (en) | 2013-02-27 | 2013-02-27 | Suction stop valve of self-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088492 CN203130585U (en) | 2013-02-27 | 2013-02-27 | Suction stop valve of self-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130585U true CN203130585U (en) | 2013-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320088492 Expired - Fee Related CN203130585U (en) | 2013-02-27 | 2013-02-27 | Suction stop valve of self-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321454A (en) * | 2015-06-29 | 2017-01-11 | 上海宝钢工业技术服务有限公司 | Automatic liquid storage device of self-priming centrifugal pump |
-
2013
- 2013-02-27 CN CN 201320088492 patent/CN203130585U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321454A (en) * | 2015-06-29 | 2017-01-11 | 上海宝钢工业技术服务有限公司 | Automatic liquid storage device of self-priming centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20210227 |