CN201225332Y - Self-sucking pump - Google Patents
Self-sucking pump Download PDFInfo
- Publication number
- CN201225332Y CN201225332Y CNU2008201029628U CN200820102962U CN201225332Y CN 201225332 Y CN201225332 Y CN 201225332Y CN U2008201029628 U CNU2008201029628 U CN U2008201029628U CN 200820102962 U CN200820102962 U CN 200820102962U CN 201225332 Y CN201225332 Y CN 201225332Y
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- CN
- China
- Prior art keywords
- water
- cavity
- pump
- cover
- intake
- 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 discloses a self-priming pump which has low cost, simple structure and stronger self-priming property. In order to realize the purpose, the self-priming pump comprises a water inlet end cover and a water outlet end cover, and a pump body arranged between the water inlet end cover and the water outlet end cover, wherein the pump body is composed of a housing and an impeller casing; the water inlet end cover forms a water inlet cavity, the water outlet end cover forms a water outlet cavity, the impeller casing of the pump body forms a pressure cavity, one or more than one impeller driven by a motor is arranged in the pressure cavity, an annular return water cavity is formed between the impeller casing and the housing, one end of the annular return water cavity is communicated with the water outlet cavity, a self-priming cover is arranged between the water inlet cavity and the pressure cavity, the self-priming cover is provided with an outer cavity communicated with the other end of the return water cavity and an inner cavity communicated with the water inlet cavity, and a channel is arranged between the inner cavity and the outer cavity of the self-priming cover. In this way, because the return water cavity is provided, the utility model reduces the initial water inlet time of the pump and improves the self-priming property and the efficiency of the pump.
Description
Technical field
The utility model relates to pump structure, particularly relates to a kind of structure of self prime pump
Background technique
ZL92221281.3 relates to a kind of self-priming centrifugal water pump, comprises water intake, the pump housing, impeller; The pump housing is a double Shell, and internal layer is induction chamber, impeller and the turbine that joins with water intake, and induction chamber and water intake joining place have an one-way valve, and induction chamber and impeller shaft are same horizontal axis; Outer field top is an air-water separation chamber, and the bottom is a water chamber, and a backwater channel is arranged between air-water separation chamber and the water chamber, and the water inlet of this backwater channel and spiral case bottom joins, and air-water separation chamber communicates with spiral case top.
Though above-mentioned patent is provided with backwater channel, have certain backwater effect, following shortcoming is arranged:
1, above-mentioned pump has been set up water chamber separately, complex structure, manufacture cost height.
Though 2, above-mentioned blowback water channel is arranged to horn-likely, because valve mechanism is not set, causes the water of high pressure and the water of low pressure to mix easily, and has influenced the effect of self-priming.
The model utility content
The purpose of this utility model be to provide a kind of cost low, simple in structure, have strong suction capacity and than the self prime pump of high suction depth.
For achieving the above object, the utility model adopts following structure:
The utility model self prime pump comprises, intake end cover and water outlet end cap, and be arranged at the pump housing between intake end cover and the water outlet end cap, the pump housing is made of shell and impeller housing, intake end cover forms water-inlet cavity, the water outlet end cap forms water cavity, and pump housing impeller housing forms pressurizing chamber, is provided with in pressurizing chamber by motor-driven one or more impeller; Between impeller housing and shell, form the backwater cavity of annular, backwater cavity one end communicates with water chamber, between water-inlet cavity and pressurizing chamber, be provided with from suction cover, self-priming is covered with outer chamber that communicates with the backwater cavity the other end and the inner cavity chamber that communicates with water-inlet cavity, is provided with passage between the inner cavity chamber of suction cover and outer chamber.
The above-mentioned water inlet from the suction cover passage is provided with valve block, and the shape of valve block and water intake shape adapt, and can cover the passage water intake, valve block is undertaken spacing by the guide pillar that is fixed on from the suction cover outer chamber.
Above-mentioned at sidewall from the suction cover outer chamber, relative with water intake, be provided with a projection, be adjacent to outer chamber to avoid valve block.
Be provided with rubber ring at water intake from suction cover.
Be provided with water intake on intake end cover top.
The portion of covering is provided with water outlet in the waterexit end.
Be provided with the venting water hole in the bottom of intake end cover.
The inside and outside shell of intake end cover, water outlet end cap and the pump housing is coaxial.
Be provided with axle sleeve from the suction cover middle part, be provided with mechanical sealing element at water outlet end cap middle part, motor-driven axle is located in from the axle sleeve and the waterexit end of suction cover and covers.
Like this, owing to be provided with backwater cavity, by backwater cavity, the high pressure water of part can be assisted pressurization to entering pressurizing chamber water before, can rapidly water be picked up, and has reduced water pump initial stage flooding time, has improved the efficient of water pump and has inhaled journey; And the valve block that is provided with in the time of can reaching certain value in the pressure difference of pressurizing chamber front and back, is close on the rubber ring of water intake, passage is sealed, then the water that comes out of pressurizing chamber is all flowed out by water outlet, and when avoiding proper functioning, the waste of high pressure water and reduce the efficient of water pump.
Description of drawings
Fig. 1 is a sectional view of the present utility model;
Fig. 2 is a plan view of the present utility model;
Fig. 3 is the A portion partial enlarged drawing of the utility model pump housing.
Fig. 4 is the sectional view of the utility model from suction cover;
Fig. 5 is the plan view of the utility model from suction cover;
Fig. 6 is the rear view of the utility model from suction cover.
The primary clustering symbol description:
1, intake end cover; 11, water-inlet cavity; 12, water intake; 13, venting water hole; 2, water outlet end cap; 21, water chamber; 22, water outlet; 23, mechanical sealing element; 3, the pump housing; 31, pressurizing chamber; 32, backwater cavity; 4, shell; 5, impeller housing; 6, impeller; 7, from suction cover; 71, outer chamber; 72, inner cavity chamber; 73, passage; 731, water intake; 732, rubber ring; 74, valve block; 75, guide pillar; 76, projection; 77, axle sleeve.
Embodiment
The utility model self prime pump comprises intake end cover 1 and water outlet end cap 2, and be arranged at the pump housing 3 between intake end cover 1 and the water outlet end cap 2, the pump housing 3 is made of shell 4 and impeller housing 5, intake end cover 1 forms water-inlet cavity 11, water outlet end cap 2 forms water cavity 21, form pressurizing chamber 31 in impeller housing 5, in pressurizing chamber 31, be provided with by motor-driven one or more impeller 6, between impeller housing 5 and shell 4, form the backwater cavity 32 of annular, backwater cavity 32 1 ends communicate with water chamber 21, between water-inlet cavity 11 and pressurizing chamber 31, be provided with from suction cover 7, be provided with outer chamber 71 that communicates with backwater cavity 32 the other ends and the inner cavity chamber 72 that communicates with water-inlet cavity 11 from suction cover 7, between the inner cavity chamber 72 of suction cover 7 and outer chamber 71, be provided with passage 73.
Be provided with water intake 12 on intake end cover top, be provided with water outlet 22, be provided with venting water hole 13 in the bottom of intake end cover in the waterexit end portion of covering.
The inside and outside shell of intake end cover 1, water outlet end cap 2 and the pump housing 3 is coaxial.
Be provided with axle sleeve 77 from the suction cover middle part, be provided with mechanical sealing element 23 at water outlet end cap middle part, motor-driven axle is located in from the axle sleeve and the waterexit end of suction cover and covers.
Like this, work as electric motor starting, drives impeller is rotated, when drawing water, water enters from the water intake of intake end cover, by water-inlet cavity, after pressurizeing by impeller in pump housing impeller housing, enter the water chamber that the water outlet end cap forms, at this moment, most of water is from the ejection of the water outlet of water outlet end cap, and the high pressure water of a part enters outer chamber from suction cover from water chamber by backwater cavity, passage by outer chamber and inner cavity chamber enters inner cavity chamber, and pressurization is assisted in water inlet.
Owing to be provided with backwater cavity, by backwater cavity, the high pressure water of part can be assisted pressurization to entering pressurizing chamber water before, can rapidly water be picked up, and has reduced water pump initial stage flooding time, has improved the efficient of water pump and has inhaled journey.
When the pump working initial stage, assist water inlet before constantly high pressure water being back to pressurizing chamber, when the pressure difference before and after the pressurizing chamber reaches certain value, the valve block of establishing from suction cover passage water inlet is under pressure, and be close on the rubber ring of water intake, with passage sealing, then the water that comes out of pressurizing chamber is all flowed out by water outlet, and when avoiding proper functioning, the waste of high pressure water and reduce the efficient of water pump.
In addition, be fixed on guide pillar from the suction cover outer chamber can carry out valve block spacing so that valve block accurate and effective seal the passage water intake, and the projection that is provided with in addition avoids valve block to be adjacent to the outer chamber sidewall and cause can't shutoff.
The venting water hole that is provided with in the intake end cover bottom when water pump is collected, can be discharged the water in the water pump.
Claims (9)
1, a kind of self prime pump comprises, intake end cover and water outlet end cap, and be arranged at the pump housing between intake end cover and the water outlet end cap, it is characterized in that: the pump housing is made of shell and impeller housing, intake end cover forms water-inlet cavity, the water outlet end cap forms water cavity, pump housing impeller housing forms pressurizing chamber, in pressurizing chamber, be provided with by motor-driven one or more impeller, between impeller housing and shell, form the backwater cavity of annular, backwater cavity one end communicates with water chamber, between water-inlet cavity and pressurizing chamber, be provided with from suction cover, self-priming is covered with outer chamber that communicates with the backwater cavity the other end and the inner cavity chamber that communicates with water-inlet cavity, is provided with passage between the inner cavity chamber of suction cover and outer chamber.
2, a kind of self prime pump as claimed in claim 1, it is characterized in that: the above-mentioned water inlet from the suction cover passage is provided with valve block, the shape of valve block and water intake shape adapt, and can cover the passage water intake, valve block is undertaken spacing by the guide pillar that is fixed on from the suction cover outer chamber.
3, a kind of self prime pump as claimed in claim 2 is characterized in that: above-mentioned at sidewall from the suction cover outer chamber, and relative with water intake, be provided with a projection, be adjacent to outer chamber to avoid valve block.
4, a kind of self prime pump as claimed in claim 2 is characterized in that: be provided with rubber ring at the water intake from suction cover.
5, a kind of self prime pump as claimed in claim 1 is characterized in that: be provided with water intake on intake end cover top.
6, a kind of self prime pump as claimed in claim 1, it is characterized in that: the portion of covering is provided with water outlet in the waterexit end.
7, a kind of self prime pump as claimed in claim 1 is characterized in that: be provided with the venting water hole in the bottom of intake end cover.
8, a kind of self prime pump as claimed in claim 1 is characterized in that: the inside and outside shell of intake end cover, water outlet end cap and the pump housing is coaxial.
9, a kind of self prime pump as claimed in claim 1 is characterized in that: be provided with axle sleeve from the suction cover middle part, be provided with mechanical sealing element at water outlet end cap middle part, motor-driven axle is located in from the axle sleeve and the waterexit end of suction cover and covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201029628U CN201225332Y (en) | 2008-07-09 | 2008-07-09 | Self-sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201029628U CN201225332Y (en) | 2008-07-09 | 2008-07-09 | Self-sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225332Y true CN201225332Y (en) | 2009-04-22 |
Family
ID=40598218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201029628U Expired - Fee Related CN201225332Y (en) | 2008-07-09 | 2008-07-09 | Self-sucking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225332Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678505A (en) * | 2012-05-19 | 2012-09-19 | 浙江大元泵业有限公司 | Automatic well pump |
| CN109368193A (en) * | 2018-11-23 | 2019-02-22 | 河南中烟工业有限责任公司 | A kind of confession hydraulic type transmission belt cleaning device |
-
2008
- 2008-07-09 CN CNU2008201029628U patent/CN201225332Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678505A (en) * | 2012-05-19 | 2012-09-19 | 浙江大元泵业有限公司 | Automatic well pump |
| CN109368193A (en) * | 2018-11-23 | 2019-02-22 | 河南中烟工业有限责任公司 | A kind of confession hydraulic type transmission belt cleaning device |
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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: 20090422 Termination date: 20160709 |