CN210423047U

CN210423047U - Clean water or sewage pump for water pump

Info

Publication number: CN210423047U
Application number: CN201921321164.9U
Authority: CN
Inventors: 孙明辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-28
Anticipated expiration: 2029-08-15

Abstract

A clean water or sewage pump for a water pump relates to a water pump, in particular to a water pump for crop irrigation or sewage extraction of a methane tank. The water inlet mesh grate comprises a machine shell, a base and a top cover, wherein a rotor is installed on the top cover through an upper bearing, an impeller is installed on a rotating shaft at the lower end of the rotor and is located in a volute, a cutting knife is installed at the end part of the rotating shaft, and a water inlet mesh grate is installed between the cutting knife and the impeller on the rotating shaft. The key technology is that a water inlet disc and a cutter are arranged between an impeller and a water inlet net grate on a rotating shaft. The utility model has the advantages that: 1. a cutter is arranged behind the water inlet net grate to carry out secondary cutting on the entanglement such as the aquatic plants and the like which are not thoroughly cut and removed, so that water inlet is smooth, the clean water or sewage pump works smoothly, and the repair rate is greatly reduced. 2. The water inlet disc is arranged between the impeller and the water inlet net grate, so that water is prevented from overflowing towards the water inlet, the amount of water entering the water outlet of the volute is greatly increased, the lift of the water is increased, and the irrigation efficiency is effectively improved.

Description

Clean water or sewage pump for water pump

Technical Field

A clean water or sewage pump for a water pump relates to a water pump, in particular to a water pump for crop irrigation or sewage extraction of a methane tank.

Background

At present, common single-phase and three-phase clean water or sewage pumps are popular with farmers for crop irrigation or sewage extraction of methane tanks. The water-feeding type water-saving pump is provided with a machine shell, a base and a top cover, wherein a rotor is arranged on the top cover through an upper bearing, an impeller is arranged on a rotating shaft at the lower end of the rotor and is positioned in a volute, a cutting knife is arranged at the end part of the rotating shaft and is used for cutting off entanglement such as aquatic weeds and the like which possibly enter the pump, and a water-feeding net grate is arranged between the cutting knife and the impeller on the rotating shaft. Through the multiple improvement of the inventor, the clean water or sewage pump with the structure has the advantages that the rotating shaft is shortened, the concentricity is improved, and the sealing performance is also improved compared with the prior art. However, the following problems still remain in the use of the clean water or sewage pump:

1. when only one cutting knife is installed at the water inlet of the clean water or sewage pump, and the entanglement of the aquatic weeds and the like is more or continuously generated, the cutting knife cannot completely cut the entanglement of the aquatic weeds and the like, the entanglement of the aquatic weeds and the like can enter a volute when the entanglement of the aquatic weeds and the like enters the volute, so that the water inlet is blocked, the work of the clean water or sewage pump is influenced, even the clean water or sewage pump is damaged, the clean water or sewage pump has to be maintained, and the repair rate is increased.

2. Only one water inlet net grate is arranged between the cutting knife and the impeller, the periphery of the water inlet net grate is open, water entering the volute is easy to return to the water inlet net grate and then flows out from a water inlet of a clean water or sewage pump, water entering a water outlet of the volute is greatly reduced, the lift of the water is low, the height of the water is generally 6-8 m, and the irrigation efficiency is greatly influenced.

Disclosure of Invention

The to-be-solved problem of the utility model is to provide a clear water or sewage pump that the extraction clear water or sewage that intake is unobstructed, the lift increases to above not enough. The technical scheme is as follows:

the water inlet mesh grate comprises a machine shell, a base and a top cover, wherein a rotor is installed on the top cover through an upper bearing, an impeller is installed on a rotating shaft at the lower end of the rotor and is located in a volute, a cutting knife is installed at the end part of the rotating shaft, and a water inlet mesh grate is installed between the cutting knife and the impeller on the rotating shaft. The key technology is that a water inlet disc and a cutter are arranged between an impeller and a water inlet net grate on a rotating shaft.

And a cutter mounting seat is arranged on the blade of the impeller close to the shaft hole.

The water inlet disc is a disc, a shaft hole is formed in the middle of the disc, one side of the water inlet disc, which is close to the shaft hole, is provided with a water stop opening, and the other side of the water inlet disc is provided with a cutting table.

The middle of the cutter is provided with a shaft hole, and the periphery of the shaft hole is provided with a pair of symmetrical blades.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

1. a cutter is arranged behind the water inlet net grate to carry out secondary cutting on the entanglement such as the aquatic plants and the like which are not thoroughly cut and removed, so that water inlet is smooth, the clean water or sewage pump works smoothly, and the repair rate is greatly reduced.

2. A water inlet disc is arranged between the impeller and the water inlet mesh grate, water enters the middle of the water inlet disc and is matched with the impeller, the water body is prevented from overflowing towards the water inlet, the water entering the water outlet of the volute is greatly increased, and the lift of the water is increased to 12-15 m. The irrigation efficiency is effectively improved.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the impeller of the present invention;

FIG. 3 is a view of FIGS. 2A-A;

FIG. 4 is a schematic view of the structure of the water intake tray of the present invention;

FIG. 5, is a view of FIGS. 4B-B;

FIG. 6 is a schematic view of the structure of the cutter of the present invention;

FIG. 7, is a view of FIGS. 6C-C;

FIG. 8 is a schematic view of the structure of the water inlet grate of the present invention;

FIG. 9, is the view of FIG. 8D-D;

fig. 10 is a schematic view of the structure of the cutting knife of the present invention;

fig. 11, is a view of fig. 10E-E.

The specific implementation mode is as follows:

referring to fig. 1-11, the utility model discloses a casing 7, base 14 and top cap 9, through upper bearing 10 installation rotor 8 on top cap 9, installation impeller 5 on the pivot 6 of rotor 8 lower extreme, impeller 5 is located volute 13, and cutting knife 1 is installed to 6 tip in the pivot, lies in the cutting knife 1 and installs into water net grate 3 between impeller 5 in the pivot 6. The key technology is that a water inlet disc 4 and a cutter 2 are arranged between an impeller 5 and a water inlet net grate 3 on a rotating shaft 6.

And a cutter mounting seat 5.1 is arranged on the blade of the impeller 5 close to the shaft hole.

The water inlet plate 4 is a disc 4.1, a shaft hole is formed in the middle of the disc 4.1, the water inlet plate 4 is close to the shaft hole, a water stopping hole 4.3 is formed in one surface of the water inlet plate, and a cutting table 4.2 is arranged on the other surface of the water inlet plate. During installation, the cutter 2 is placed on the installation seat 5.1 of the blade and is positioned in the shaft hole of the water inlet disc 4.

The middle of the cutter 2 is provided with a shaft hole, and the periphery of the shaft hole is provided with a pair of symmetrical blades 2.1.

In the figure, 11 denotes a stator.

When the water-saving device works, clear water or sewage enters the volute 13 from the water inlet through the water inlet net grate 3 and is pumped out by the water outlet joint 12. If the water inlet is provided with winding materials such as aquatic plants, the cutting knife 1 firstly cuts off the winding materials to remove the water inlet barriers. If residual materials enter from the water inlet net grate 3 along with clean water or sewage, the cutter 2 cuts the residual materials again, the blade 2.1 of the cutter 2 is matched with the cutting table 4.2, the residual materials are extruded and cut, water inlet barriers are removed again, and the purpose of smoothly pumping water is achieved.

Claims

1. The utility model provides a clear water or sewage pump for water pump, which comprises a housing (7), base (14) and top cap (9), install rotor (8) through upper bearing (10) on top cap (9), install impeller (5) on pivot (6) of rotor (8) lower extreme, impeller (5) are located volute (13), cutting knife (1) is installed to pivot (6) tip, lie in pivot (6) and install into water net castor (3) between cutting knife (1) and impeller (5), characterized by lies in pivot (6) and installs into water dish (4) and cutter (2) between impeller (5) and the net castor of intaking (3).

2. The water pump as claimed in claim 1, characterized in that the blade of the impeller (5) is provided with a cutter mounting (5.1) near the axial hole.

3. The clean water or sewage pump for the water pump as claimed in claim 1, wherein the water intake plate (4) is a circular plate (4.1), the middle of the circular plate (4.1) is provided with a shaft hole, and the position of the water intake plate (4) close to the shaft hole is provided with a water stopping opening (4.3) on one side and a cutting table (4.2) on the other side.

4. The clean water or sewage pump for the water pump as claimed in claim 1, wherein the cutter (2) is provided with a shaft hole in the middle, and a pair of symmetrical blades (2.1) are arranged on the periphery of the shaft hole.