CN204628091U - A kind of pump head of small-scale sewage pump - Google Patents
A kind of pump head of small-scale sewage pump Download PDFInfo
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- CN204628091U CN204628091U CN201520299020.3U CN201520299020U CN204628091U CN 204628091 U CN204628091 U CN 204628091U CN 201520299020 U CN201520299020 U CN 201520299020U CN 204628091 U CN204628091 U CN 204628091U
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- pump head
- pump
- output connector
- inwall
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Abstract
The utility model provides a kind of pump head of small-scale sewage pump, belongs to technical field.It solve the problems such as existing small-scale sewage pumping head is low.The pump head of this small-scale sewage pump comprises pump head body and is positioned at the outlet pipe on pump head body, pump head body comprises bottom and sidewall, the middle part of bottom offers water intake and water intake is connected with pump head body interior, outlet pipe is arranged on sidewall and the inside of outlet pipe and is connected with the inside of pump head body, outlet pipe comprises the body be connected with sidewall and the water output connector being positioned at body end, body be taper and cone mouth outwardly, the drift angle of body is between 18 ° to 20 °, the central shaft of body and the horizontal plane angle of bottom are between 149 ° to 151 °, water output connector is cylindrical and water output connector and body concentric shafts are arranged, angle between the inwall of water output connector and the inwall of body is between 169 ° to 171 °.It is simple that the utility model has structure, lift advantages of higher.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of sewage pump, particularly a kind of pump head of small-scale sewage pump.
Background technique
In recent years, China pays much attention to environmental renovation and sewage treatment, and all parts of the country are all in construction sewage treatment project, and sewage pump is the visual plant in city conveying sewage.Sewage pump is a kind of Pump and Electromotor disjunctor, and the pump series products worked under simultaneously slipping into liquid, compared with ordinary water pump, sewage pump compact structure, floor space are little, environmentally safe, so be widely used in the industries such as industry, hospital, restaurant, be mainly used to conveying containing a large amount of solid particulate matter as mud, lime-ash etc., and containing a large amount of fibrous solid substances as domestic sewages such as various weaving refuse, vegetables video wastes.
At present, the pump housing of small-scale sewage pump comprises pump shaft, unlimited pump case, the circular base plate being connected to pump case lower end and the water inlet net be connected to below chassis down, the middle part on pump case and chassis is run through in the lower end of pump shaft, one end of pump case upwards extends to form water output connector, in the lower end of pump shaft, cover has impeller, and this impeller is positioned at pump head.Due to reasons such as volume are little, power is low, to cause current small-scale sewage pumping head lower.
For above-mentioned Problems existing, people have made improvement miscellaneous to sewage pump, and some has also applied for patent, such as, disclose a kind of sewage/waste electrical submersible pump pump head [application number: 201320386276.9 in Chinese patent literature data, Authorization Notice No.: CN203335426U], it comprises pump shaft, the pump case opened wide down, the circular base plate being connected to pump case lower end and the water inlet net be connected to below chassis, the middle part on pump case and chassis is run through in the lower end of pump shaft, the lower end of pump shaft is ladder shaft-like, on top step axle, cover has two impellers and a guide vane wheel, impeller and guide vane wheel are all positioned at pump case, wherein arrive impeller between two impellers, edge and the pump housing endophragm of guide vane wheel are fixed, and be lined with axle sleeve between impeller and pump shaft, on pump shaft step axle on the lower, cover has packing ring and nut, impeller and axle sleeve are locked on top step axle by packing ring and nut, gap is left between impeller edge and pump housing endophragm.
Above-mentioned sewage/waste electrical submersible pump pump head, sheathedly on the pump shaft being positioned at pump head adds an impeller and one to impeller.During pump working, two impellers and a guide vane wheel work simultaneously, adds somewhat to the hydraulic pressure in pump head, current are increased and improves lift.But on pump shaft, increase impeller and guide vane wheel makes space in pump head too compact, add installation difficulty; Increase impeller and guide vane wheel can cause motor bearing capacity excessive simultaneously, must change more superpower motor and just can realize normal work; And its water output connector is 90 ° of bending designs, when blowdown water outlet, 90 ° of bending places hinder the mobility reducing sewage greatly, thus also have impact on lift.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of structure simple, can improve the pump head of the small-scale sewage pump of lift.
The purpose of this utility model realizes by following technical proposal: a kind of pump head of small-scale sewage pump, comprise pump head body and be positioned at the outlet pipe on pump head body, described pump head body comprises bottom and sidewall, the middle part of described bottom offers water intake and water intake is connected with pump head body interior, described outlet pipe is arranged on sidewall and the inside of outlet pipe and is connected with the inside of pump head body, it is characterized in that, described outlet pipe comprises the body be connected with sidewall and the water output connector being positioned at body end, described body be taper and cone mouth outwardly, the drift angle of described body is between 18 ° to 20 °, the central shaft of described body and the horizontal plane angle of bottom are between 149 ° to 151 °, described water output connector is cylindrical and water output connector and body concentric shafts are arranged, angle between the inwall of described water output connector and the inwall of body is between 169 ° to 171 °.
The pump head of this small-scale sewage pump, the shaft design of outlet pipe has become taper, redesigns the angle of body and water output connector.Finally draw through a large amount of test, erect when water pump and place, the central shaft of body and the horizontal plane angle of bottom are between 149 ° to 151 °, time angle between the inwall of water output connector and the inwall of body is between 169 ° to 171 °, the resistance of inwall to sewage of pump head is minimum, the water outlet of water pump is more smooth, thus when changing pump head internal structure to improve sewage lift of pump.
In the pump head of above-mentioned a kind of small-scale sewage pump, the outer wall of described bottom have the bulge loop of a circle outwardly convex and flange and bulge loop is positioned at flange, described water intake is positioned at bulge loop and water intake, bulge loop and flange are concentric setting, is connected with some stiffening ribs between described flange and bulge loop.The setting of bulge loop and flange defines a closed annulus, allows the ponding overflowed be stored between bulge loop and flange, makes water outlet form vacuum state, can strengthen the power of drawing water of water pump thus also improve water outlet lift; And arranging of stiffening rib can make the bulge loop of water outlet more firm.
In the pump head of above-mentioned a kind of small-scale sewage pump, the angle between the sidewall of described pump head body and bottom is between 95 ° to 97 °, and the rounding of described sidewall and connection, bottom is between R6 to R8.This structural design makes sidewall outward-dipping, and the inner drainage flow of pump head is more smooth and easy, has help to a certain extent to improving lift.
In the pump head of above-mentioned a kind of small-scale sewage pump, the rounding of the inwall of described body and the joint of pump head inner body wall is between R1 to R2, and the rounding between the inwall of described water output connector and the inwall of body is between R1 to R2.
Compared with prior art, the pump head of this small-scale sewage pump has carried out redesign to the angle of outlet pipe and water inlet adds containment structures, and not only structure is simple and improve lift.
Accompanying drawing explanation
Fig. 1 is the perspective view of the pump head of this small-scale sewage pump.
Fig. 2 is the broken section structural representation of the pump head of this small-scale sewage pump.
In figure, 1, pump head body; 2, bottom; 3, sidewall; 4, outlet pipe; 5, body; 6, water output connector; 7, water intake; 8, bulge loop; 9, flange; 10, stiffening rib.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1, shown in Fig. 2, the pump head of this small-scale sewage pump comprises pump head body 1 and the outlet pipe 4 be positioned on pump head body 1, pump head body 1 comprises bottom 2 and sidewall 3, the middle part of bottom 2 offers water intake 7 and water intake 7 is connected with pump head body 1 inside, outlet pipe 4 is arranged on the sidewall 3 and inside of outlet pipe 4 and is connected with the inside of pump head body 1, outlet pipe 4 comprises the body 5 be connected with sidewall 3 and the water output connector 6 being positioned at body 5 end, body 5 for taper and cone mouth outwardly, the drift angle of body 5 is between 18 ° to 20 °, the central shaft of body 5 and the horizontal plane angle of bottom 2 are between 149 ° to 151 °, water output connector 6 is cylindrical and water output connector 6 and body 5 concentric shafts are arranged, angle between the inwall of water output connector 6 and the inwall of body 5 is between 169 ° to 171 °.
Vacuum is formed in order to make water intake 7 place in the pump head of this small-scale sewage pump, increase power of drawing water thus improve lift, bottom it 2 outer wall on there is the bulge loop 8 of a circle outwardly convex and flange 9 and bulge loop 8 is positioned at flange 9, water intake 7 is positioned at bulge loop 8 and water intake 7, bulge loop 8 and flange 9 are concentric setting, is connected with some stiffening ribs 10 between flange 9 and bulge loop 8.
In order to the pump head inwall drainage flow of the pump head of this small-scale sewage pump is more smooth and easy, angle between the sidewall 3 of its pump head body 1 and bottom 2 is between 95 ° to 97 °, the rounding of sidewall 3 and connection, bottom 2 is between R6 to R8, the rounding of the inwall of body 5 and the joint of pump head body 1 inwall is between R1 to R2, and the rounding between the inwall of water output connector 6 and the inwall of body 5 is between R1 to R2.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as pump head body 1, bottom 2, sidewall 3, outlet pipe 4, body 5, water output connector 6, water intake 7, bulge loop 8, flange 9, stiffening rib 10 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (4)
1. the pump head of a small-scale sewage pump, comprise pump head body (1) and be positioned at the outlet pipe (4) on pump head body (1), described pump head body (1) comprises bottom (2) and sidewall (3), the middle part of described bottom (2) offers water intake (7) and water intake (7) is connected with pump head body (1) inside, described outlet pipe (4) is arranged on sidewall (3) and the inside of outlet pipe (4) and is connected with the inside of pump head body (1), it is characterized in that, described outlet pipe (4) comprises the body (5) be connected with sidewall (3) and the water output connector (6) being positioned at body (5) end, described body (5) for taper and cone mouth outwardly, the drift angle of described body (5) is between 18 ° to 20 °, the central shaft of described body (5) and the horizontal plane angle of bottom (2) are between 149 ° to 151 °, described water output connector (6) is arranged for cylindrical and water output connector (6) and body (5) concentric shafts, angle between the inwall of described water output connector (6) and the inwall of body (5) is between 169 ° to 171 °.
2. the pump head of a kind of small-scale sewage pump according to claim 1, it is characterized in that, the outer wall of described bottom (2) have the bulge loop (8) of a circle outwardly convex and flange (9) and bulge loop (8) is positioned at flange (9), described water intake (7) is positioned at bulge loop (8) and water intake (7), bulge loop (8) and flange (9) are concentric setting, is connected with some stiffening ribs (10) between described flange (9) and bulge loop (8).
3. the pump head of a kind of small-scale sewage pump according to claim 1 and 2, it is characterized in that, angle between the sidewall (3) of described pump head body (1) and bottom (2) is between 95 ° to 97 °, and described sidewall (3) and the rounding of bottom (2) connection are between R6 to R8.
4. the pump head of a kind of small-scale sewage pump according to claim 1, it is characterized in that, the rounding of the inwall of described body (5) and the joint of pump head body (1) inwall is between R1 to R2, and the rounding between the inwall of described water output connector (6) and the inwall of body (5) is between R1 to R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299020.3U CN204628091U (en) | 2015-05-11 | 2015-05-11 | A kind of pump head of small-scale sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299020.3U CN204628091U (en) | 2015-05-11 | 2015-05-11 | A kind of pump head of small-scale sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628091U true CN204628091U (en) | 2015-09-09 |
Family
ID=54047127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520299020.3U Expired - Fee Related CN204628091U (en) | 2015-05-11 | 2015-05-11 | A kind of pump head of small-scale sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628091U (en) |
-
2015
- 2015-05-11 CN CN201520299020.3U patent/CN204628091U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20200511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |