CN220539934U - Water pump impeller and centrifugal water pump - Google Patents

Abstract

The utility model discloses a water pump impeller and a centrifugal water pump, which comprises a pump body provided with an impeller, wherein a plurality of blades are arranged on the impeller, the centrifugal water pump also comprises a rotary drum which is reversely rotated on the impeller, a first shovel member is fixedly arranged on the rotary drum, a second shovel member is fixedly arranged on the blades, the first shovel member and the second shovel member are arranged in a staggered manner, and a plurality of first cutters on the first shovel member and a plurality of second cutters on the second shovel member are staggered. According to the water pump impeller and the centrifugal water pump, fluid enters from the water inlet of the pump body and acts on the rotary drum, so that the rotary drum and the impeller keep rotating reversely, sundries contained in the fluid between the blades are extruded and cut under the action of the first cutters and the second cutters which are movable in a staggered mode, the sundries are enabled to be finer particles and flow to the water outlet of the pump body to be discharged, and blockage of the sundries in the pump body is reduced.

Description

Water pump impeller and centrifugal water pump

Technical Field

The utility model relates to the technical field of water pumps, in particular to a water pump impeller and a centrifugal water pump.

Background

Centrifugal water pumps widely exist in environments such as agriculture, industry and the like, the centrifugal water pumps utilize centrifugal force generated by rotation of impellers to throw water from the center to the edge, and the centrifugal water pumps need to be filled with conveyed liquid before working, and the impellers are driven by pump shafts to rotate at high speed.

According to publication (bulletin) No.: CN209875544U, publication (date): 2019-12-31, discloses a novel water pump impeller, which comprises an impeller body and a cutting device, wherein the impeller body and the cutting device are fixed in a hot melting way. The utility model also provides a centrifugal water pump applying the novel water pump impeller. The novel water pump impeller and the centrifugal water pump are simple and reliable in structure, can reduce or avoid damage of foreign matters such as fibers and solid particles in sewage to the water pump during operation of the water pump, can prolong the service life of the water pump, and can avoid the safety problem caused by the blocking of the water pump.

According to publication (bulletin) No.: CN215170797U, publication (date): 2021-12-14 discloses a water pump impeller and centrifugal water pump, which comprises a base plate, the top one side fixedly connected with motor cabinet of bottom plate, the top fixedly connected with motor of motor cabinet, the top opposite side fixedly connected with second pump body of bottom plate, the center department rotation of the opposite side of second pump body and first pump body is connected with the impeller, the center department fixedly connected with transmission shaft of impeller, the both sides of impeller are provided with the rotating turret, the rotating turret respectively with second pump body, first pump body fixedly connected with, the center department fixedly connected with second suction pipe of one side of second pump body deviating from the first pump body. According to the utility model, the rotating frame is arranged in the pump body and is provided with the baffle rod and the rotating seat, so that large sundries can be blocked by the baffle rod during rotation, flocculent sundries can be arranged on the periphery of the rotating seat, sundries are prevented from entering the impeller, and the blockage of the impeller is reduced.

In the prior art including above-mentioned patent, because impeller is carrying the water in-process, doping multiple debris in the water easily, although can set up the filter screen in advance at the pump body water inlet in prior art and intercept debris, but the filter screen interception is difficult to guarantee to intercept debris totally, therefore have some debris to pass the filter screen and enter into the pump body in, can pile up a large amount of debris in the pump body in the past for a long time, and the debris of piling up causes the pump body to appear blocking easily, causes the impeller to appear damaging the condition even.

Disclosure of Invention

The utility model aims to provide a water pump impeller and a centrifugal water pump, which solve the problem that a pump body is blocked due to the fact that a large amount of sundries are easily accumulated on the impeller.

In order to achieve the above object, the present utility model provides the following technical solutions: the water pump impeller comprises a pump body provided with an impeller, wherein a plurality of blades are arranged on the impeller, the water pump impeller further comprises a rotary drum which is reversely rotated and arranged on the impeller, a first shovel member is fixedly arranged on the rotary drum, and a second shovel member is fixedly arranged on the blades;

the first shovel piece and the second shovel piece are arranged in a staggered mode, and a plurality of first cutters on the first shovel piece and a plurality of second cutters on the second shovel piece are staggered and movable.

Preferably, a plurality of arc barrel pieces are fixedly arranged on the rotary drum, and the arc tops of the arc barrel pieces and the arc tops of the blades are arranged in opposite directions.

Preferably, the rotary drum is matched with a plurality of arc barrel pieces to form an interception cavity, and a diversion hole communicated with the interception cavity is formed in the rotary drum.

Preferably, the first shovel member is divided into a collection arc piece and a shovel piece according to the structure, the flow guide holes are communicated with the collection arc piece, and a plurality of first cutters are fixedly arranged on the shovel piece.

Preferably, a filter screen is fixedly arranged in the diversion hole.

Preferably, the collecting arc piece is fixedly provided with shielding pieces which are symmetrically arranged, and an included angle between the shielding pieces and the collecting arc piece is specifically 60 degrees.

A centrifugal water pump comprising a water pump impeller as described in the above-mentioned scheme.

In the technical scheme, the water pump impeller and the centrifugal water pump provided by the utility model have the following beneficial effects: the fluid enters from the water inlet of the pump body and acts on the rotary drum, so that the rotary drum and the impeller keep rotating reversely, sundries contained in the fluid between the blades are extruded and cut under the action of the first cutters and the second cutters which are staggered, the sundries are enabled to be finer particles and flow to the water outlet of the pump body to be discharged, and blockage of the sundries to the inside of the pump body is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a motor and pump structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a motor and impeller according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an exploded construction of an impeller, drum and drum sheet provided in an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3 at A;

fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

Reference numerals illustrate:

1. a motor; 11. a pump body; 12. an impeller; 13. a blade; 21. a rotating drum; 22. arc tube sheets; 221. an interception chamber; 23. a deflector aperture; 231. a filter screen; 24. a first spade; 241. collecting arc pieces; 242. a shovel blade; 243. a first cutter; 244. a shielding sheet; 25. a second spade; 251. and a second cutter.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-5, a water pump impeller and a centrifugal water pump comprise a pump body 11 provided with an impeller 12, wherein a plurality of blades 13 are arranged on the impeller 12, the centrifugal water pump also comprises a rotary drum 21 which is reversely rotated and arranged on the impeller 12, a first shovel member 24 is fixedly arranged on the rotary drum 21, and a second shovel member 25 is fixedly arranged on the blades 13;

the first shovel member 24 and the second shovel member 25 are arranged in a staggered manner, and a plurality of first cutters 243 on the first shovel member 24 and a plurality of second cutters 251 on the second shovel member 25 are movable in a staggered manner.

Specifically, as shown in fig. 1, 2, 3, 4 and 5, the pump body 11 is connected to the motor 1, and the motor 1 is of the prior art, which is not described herein, and the first shovel 24 and the second shovel 25 are kept in a staggered and opposite manner, i.e. the ports of the first shovel 24 and the second shovel 25 face a center point. Through the fluid entering from the water inlet of the pump body 11 and acting on the rotary drum 21, the rotary drum 21 and the impeller 12 keep rotating reversely, so that sundries contained in the fluid between the blades 13 are extruded and cut under the action of the first cutters 243 and the second cutters 251 which are movable in a staggered mode, the sundries are enabled to be finer particles and flow to the water outlet of the pump body 11 to be discharged, and blockage of the sundries in the pump body 11 is reduced.

As a further provided embodiment of the present utility model, a plurality of arc barrel pieces 22 are fixedly mounted on the drum 21, and the arc tops of the arc barrel pieces 22 are arranged opposite to the arc tops of the blades 13.

Specifically, as shown in fig. 2 and 3, the impeller 12 is driven by the motor 1 to be kept rotating counterclockwise, and the arc tops of the blades 13 are directed counterclockwise; the arc tube piece 22 is obliquely arranged, the included angle between the arc tube piece 22 and the side wall of the rotary drum 21 is specifically 20 degrees, and meanwhile, the arc top of the arc tube piece 22 faces clockwise. The arc top of the arc barrel piece 22 and the arc top of the blade 13 are opposite to each other, so that the rotary drum 21 is impacted by fluid and is reversely deflected with the impeller 12, and the first cutter 243 and the second cutter 251 move towards each other to squeeze and cut sundries.

As yet another embodiment of the present utility model, the drum 21 is matched with a plurality of arc-shaped drum sheets 22 to form the interception chamber 221, and the drum 21 is provided with a diversion hole 23 communicated with the interception chamber 221.

Specifically, as shown in fig. 2 and 3, the fluid enters the interception chamber 221, and part of impurities in the fluid are intercepted and stored, so that the impurities are reduced from entering the impeller 12.

As another embodiment of the present utility model, the first shovel 24 is divided into a collecting arc piece 241 and a shovel piece 242 according to the structure, the flow guiding holes 23 are communicated with the collecting arc piece 241, and a plurality of first cutters 243 are fixedly mounted on the shovel piece 242.

Specifically, as shown in fig. 3, 4 and 5, the counterclockwise driving force of the fluid flowing on the first spade piece 24 is less than the clockwise driving force of the fluid flowing on the arc tube piece 22. During the clockwise rotation of the first shovel 24, part of fine particles generated by cutting sundries by the first cutter 243 and the second cutter 251 flow into the collecting arc piece 241 along the inner wall of the shovel piece 242, so that the collecting arc piece 241 stores the sundries with fine particles and the sundries with fine particles are reduced to be accumulated on the impeller 12; meanwhile, sundries collected in the interception chamber 221 pass through the diversion holes 23 and are accumulated in the collecting arc piece 241, so that blockage of the pump body 11 caused by the sundries is effectively reduced.

As still another embodiment of the present utility model, the filter screen 231 is fixedly installed in the diversion hole 23.

Specifically, as shown in fig. 3, the filter screen 231 is a prior art, and will not be described herein. Sundries collected in the interception cavity 221 are filtered through the filter screen 231, so that more sundries with fine particles enter the collection arc piece 241, sundries with larger particles are collected in the interception cavity 221 for storage, the rotary drum 21 is conveniently taken down and washed when the pump body 11 is dismounted in the later period, the rotary drum 21 is mounted on the impeller 12 and is kept detachable, meanwhile, the mounting mode of the rotary drum 21 is the prior art, and details are omitted, so that the sundries with fine particles in the collection arc piece 241 are discharged out of the pump body 11 under the influence of fluid, and sundries are reduced to be accumulated in the pump body 11.

As still another embodiment of the present utility model, the collecting arc piece 241 is fixedly provided with a shielding piece 244 symmetrically arranged, and an included angle between the shielding piece 244 and the collecting arc piece 241 is specifically 60 °.

Specifically, as shown in fig. 3 and 4, the shielding plates 244 are specifically stainless steel metal plates, and a baffle is disposed at a position of the shielding plates 244 away from the rotation axis of the motor 1, so that fine particulate impurities are stored between the shielding plates 244. The shielding sheets 244 which are obliquely arranged are matched with the table-shaped area formed by the collecting arc sheets 241, so that fine particle impurities in the table-shaped area are not easy to discharge, and when the fine particle impurities in the table-shaped area are excessively accumulated, the impurities can overflow from the port of the shorter bottom surface of the table-shaped area, the overflowed fine particle impurities are discharged from the pump body 11, and the fine particle impurities accumulated in the table-shaped area are uniformly washed when the rotary drum 21 is disassembled.

Working principle: through the entering of fluid from the water inlet of the pump body 11 and acting on the rotary drum 21, the rotary drum 21 and the impeller 12 keep rotating reversely, so that sundries contained in the fluid between the blades 13 are extruded and cut under the action of a plurality of first cutters 243 and second cutters 251 which are movable in a staggered way, and therefore part of fine particles generated by cutting the sundries can flow into the collecting arc piece 241 along the inner wall of the shovel piece 242, the collecting arc piece 241 stores the sundries with the fine particles, and the sundries with the fine particles are reduced to be accumulated on the impeller 12; meanwhile, sundries converged in the interception cavity 221 can pass through the diversion holes 23 and are accumulated in the collection arc piece 241, and meanwhile, the two shielding pieces 244 which are obliquely arranged are matched with the bench-shaped area formed by the collection arc piece 241, so that tiny particle sundries in the bench-shaped area are not easy to discharge, and when too much tiny particle sundries in the bench-shaped area are accumulated, sundries can overflow from the port of the shorter bottom surface of the bench-shaped area, and overflowed tiny particle sundries are discharged from the pump body 11, and tiny particle sundries accumulated in the bench-shaped area are uniformly washed when the rotary drum 21 is disassembled, so that blockage of the sundries to the pump body 11 is effectively reduced.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (7)

1. The water pump impeller comprises a pump body (11) provided with an impeller (12), wherein a plurality of blades (13) are arranged on the impeller (12), and the water pump impeller is characterized by further comprising a rotary drum (21) which is reversely rotated and arranged on the impeller (12), a first shovel member (24) is fixedly arranged on the rotary drum (21), and a second shovel member (25) is fixedly arranged on the blades (13);

the first shovel (24) and the second shovel (25) are arranged in a staggered mode, and a plurality of first cutters (243) on the first shovel (24) and a plurality of second cutters (251) on the second shovel (25) are staggered.

2. A water pump impeller according to claim 1, characterized in that a plurality of arc-shaped barrel pieces (22) are fixedly arranged on the rotary drum (21), and the arc tops of the arc-shaped barrel pieces (22) are arranged opposite to the arc tops of the blades (13).

3. A water pump impeller according to claim 2, wherein the drum (21) is fitted with a plurality of arcuate blades (22) to form an interception chamber (221), and the drum (21) is provided with a diversion hole (23) communicating with the interception chamber (221).

4. A water pump impeller according to claim 3, wherein the first blade member (24) is divided into a collecting arc piece (241) and a blade piece (242) according to the structure, the flow guiding holes (23) are communicated with the collecting arc piece (241), and a plurality of the first cutters (243) are fixedly mounted on the blade piece (242).

5. A water pump impeller according to claim 3, characterized in that a filter screen (231) is fixedly mounted in the guide hole (23).

6. A water pump impeller according to claim 4, characterized in that the collecting arc piece (241) is fixedly provided with shielding pieces (244) which are symmetrically arranged, and the included angle between the shielding pieces (244) and the collecting arc piece (241) is specifically 60 °.

7. A centrifugal water pump comprising a water pump impeller according to any one of claims 1 to 6.