CN2816422Y - Rotary-nail type self-suction pump - Google Patents
Rotary-nail type self-suction pump Download PDFInfo
- Publication number
- CN2816422Y CN2816422Y CN 200520044890 CN200520044890U CN2816422Y CN 2816422 Y CN2816422 Y CN 2816422Y CN 200520044890 CN200520044890 CN 200520044890 CN 200520044890 U CN200520044890 U CN 200520044890U CN 2816422 Y CN2816422 Y CN 2816422Y
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- CN
- China
- Prior art keywords
- pump
- pump housing
- screw
- pump body
- described screw
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- Expired - Fee Related
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Abstract
The utility model relates to a rotary-nail type self-suction pump, which is composed of a centrifugal pump, wherein the centrifugal pump is provided with a pump body. An inner cavity of the pump body is provided with an impeller inside. The pump body is provided with an inlet and an outlet inside. A water inlet bend pipe is connected to the inlet. An air and water separating chamber is connected to the outlet. The water inlet bend pipe and the air and water separating chamber are communicated through a liquid return pipe. The pump body is provided with a screw hole which is communicated with the inner cavity of the pump body and is provided with a screw inside. The inserting end of the screw is extended into the inner cavity of the pump body and is similar to the top surface of a rotary surface of a blade. The screw can isolate the inlet and the outlet of the pump body and can effectively generate negative pressure for making the pump generate self-suction. The utility model is simply improved on the basis of ordinary centrifugal pumps, and thus, ordinary centrifugal pumps have the functions of centrifugal pumps and rotary-nail type self-suction pumps and have simple structure and various functions.
Description
Technical field
The utility model relates to water pump, relates in particular to self-priming pump, particularly a kind of nail formula self-priming pump that revolves.
Background technique
Self-priming pump is to produce negative pressure in the ingress of pump water is sucked in the pump chamber from the external world, and discharges through delivery side of pump.In order to form effective negative pressure, when using self-priming pump for the first time, need in pump, pour water from delivery side of pump, can effectively form negative pressure when making pump work with the air in the discharge pump chamber.Simultaneously, when pump was just started working, because the inlet of pump is in negative pressure, and outlet was in malleation, so have isolation between the entrance and exit of pump, so that effectively set up negative pressure in the ingress of pump, thereby produced self-priming.For the requirement above satisfying, there is the shortcoming of complex structure and function singleness in existing self-priming pump.
Summary of the invention
The purpose of this utility model provides a kind of nail formula self-priming pump that revolves, the described this technical problem that nail formula self-priming pump will solve self-priming pump complex structure and function singleness in the prior art of revolving.
This nail formula self-priming pump that revolves of the present utility model is made of centrifugal pump, described centrifugal pump has a pump housing, be provided with impeller in the inner chamber of the described pump housing, be provided with entrance and exit in the described pump housing, wherein, be connected with a water inlet bend pipe on the inlet of the described pump housing, be connected with an air-water separation chamber in the outlet of the described pump housing, described water inlet bend pipe and air-water separation chamber communicate by a liquid return pipe, the described pump housing is provided with a screw that communicates with the inner chamber of the pump housing, be provided with a screw in described screw, described screw matches with described screw, and the insertion end of described screw is outstanding in the inner chamber of the pump housing.
Further, the axis of described screw is positioned at the radial plane of the pump housing.
Further, the axis of described screw in the radial plane of the pump housing and the angle between the pump housing vertical center line be 112 ° 30 '.
Further, the rotation external diameter of the insertion end of described screw and impeller is at a distance of 0.5mm.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model plugs a screw on the pump housing of common centrifugal pump, and the insertion end that makes screw is near the end face of the surface of revolution of described blade, because the end face close proximity of the insertion end of screw and the surface of revolution of blade, so can isolate the entrance and exit of the pump housing, can effectively set up negative pressure, make pump produce self-priming.The utility model simply improves on the basis of Ordinary Centrifugal Pumps, makes common centrifugal pump have centrifugal pump and the function of revolving nail formula self-priming pump simultaneously, and is simple in structure, diverse in function.
Description of drawings
Fig. 1 is the plan view that revolves nail formula self-priming pump of the present utility model.
Fig. 2 is the radial plane sectional view that revolves nail formula self-priming pump of the present utility model.
Fig. 3 is the partial enlarged drawing that revolves nail formula self-priming pump of the present utility model.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the nail formula self-priming pump that revolves of the present utility model, constitute by centrifugal pump, described centrifugal pump has a pump housing 1, be provided with impeller 2 in the inner chamber of the described pump housing 1, be provided with inlet 3 and outlet 4 in the described pump housing 1, wherein, be connected with a water inlet bend pipe 8 on the inlet 3 of the described pump housing 1, be connected with an air-water separation chamber 9 in the outlet 4 of the described pump housing 1, described water inlet bend pipe 8 and air-water separation chamber 9 communicate by a liquid return pipe 10, the described pump housing 1 is provided with a screw 6 that communicates with the inner chamber of the pump housing 1, be provided with a screw 5 in described screw 6, described screw 5 matches with described screw 6, and the insertion end of described screw 5 is outstanding in the inner chamber of the pump housing 1.
Further, the axis of described screw 6 is positioned at the radial plane of the pump housing 1.
Further, the axis of described screw 5 in the radial plane of the pump housing 1 and the angle between the pump housing vertical center line be 112 ° 30 '.
Further, the insertion end of described screw 5 is near the end face 7 of the surface of revolution of described impeller 2.
Further, the rotation external diameter of the insertion end of described screw 5 and impeller 2 is at a distance of 0.5mm.
Working principle of the present utility model is as follows: before pump is started working, adjust screw 5 and make between the end face 7 of insertion end and the surface of revolution of impeller 2 of screw 5 0.5mm apart, isolate so that form effectively between making the inlet 3 of the pump housing 1 and exporting 4, primer pump then, impeller 2 quick rotation form negative pressure at inlet 3 places of the pump housing 1, make water be inhaled in the pump housing 1 from the inlet 3 of the pump housing 1, and outlet 4 discharges of the process pump housing 1, when pump is in proper functioning, screw 5 can be return.After pump quits work, because water inlet bend pipe 8 and air-water separation chamber 9 communicate, make the pressure of water inlet bend pipe 8 and air-water separation chamber 9 equate, thereby the liquid that can effectively prevent the pump housing 2 flow backwards from the inlet 3 of the pump housing 1, so when primer pump once more, need not in pump, to pour water again.
Claims (4)
1. one kind revolves nail formula self-priming pump, constitute by centrifugal pump, described centrifugal pump has a pump housing, be provided with impeller in the inner chamber of the described pump housing, be provided with entrance and exit in the described pump housing, it is characterized in that: be connected with a water inlet bend pipe on the inlet of the described pump housing, be connected with an air-water separation chamber in the outlet of the described pump housing, described water inlet bend pipe and air-water separation chamber communicate by a liquid return pipe, the described pump housing is provided with a screw that communicates with the inner chamber of the pump housing, be provided with a screw in described screw, described screw matches with described screw, and the insertion end of described screw is outstanding in the inner chamber of the pump housing.
2. the nail formula self-priming pump that revolves as claimed in claim 1, it is characterized in that: the axis of described screw is positioned at the radial plane of the pump housing.
3. the nail formula self-priming pump that revolves as claimed in claim 1 is characterized in that: the axis of described screw in the radial plane of the pump housing and the angle between the pump housing vertical center line be 112 ° 30 '.
4. the nail formula self-priming pump that revolves as claimed in claim 1 is characterized in that: the rotation external diameter of the insertion end of described screw and impeller is at a distance of 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044890 CN2816422Y (en) | 2005-09-08 | 2005-09-08 | Rotary-nail type self-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044890 CN2816422Y (en) | 2005-09-08 | 2005-09-08 | Rotary-nail type self-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816422Y true CN2816422Y (en) | 2006-09-13 |
Family
ID=36996231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520044890 Expired - Fee Related CN2816422Y (en) | 2005-09-08 | 2005-09-08 | Rotary-nail type self-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816422Y (en) |
-
2005
- 2005-09-08 CN CN 200520044890 patent/CN2816422Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |