CN219345073U - Pump body structure and water pump - Google Patents

Abstract

The utility model belongs to the technical field of water pumps, and discloses a pump body structure and a water pump, wherein the pump body structure comprises a pump body and an end cover, the pump body is provided with a water inlet, a cavity and a water outlet which are sequentially communicated, and the end cover is covered on the cavity; the cavity is internally provided with a flow guide assembly made by an injection molding process, the flow guide assembly comprises a first flow guide piece and a second flow guide piece which are oppositely arranged, the first flow guide piece is connected with the inner side wall of the cavity, the second flow guide piece is connected with the end cover, the edge of one surface of the first flow guide piece opposite to the second flow guide piece is provided with a first boss, the edge of one surface of the second flow guide piece opposite to the first flow guide piece is provided with a second boss, the first boss is abutted with the second boss, a flow guide channel is formed between the first flow guide piece and the second flow guide piece, the inlet of the flow guide channel is communicated with the water inlet, and the outlet of the flow guide channel is communicated with the water outlet. According to the utility model, the flow guide assembly manufactured by adopting an injection molding process is arranged in the cavity, so that the lift of the water pump can be improved, and the cavity can be prevented from being rusted.

Description

Pump body structure and water pump

Technical Field

The utility model belongs to the technical field of water pumps, and particularly relates to a pump body structure and a water pump.

Background

The water pump is a mechanism for delivering or pressurizing liquid, which transmits mechanical energy of a prime mover or other external energy to the liquid to increase the energy of the liquid, and is mainly used for delivering liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion, liquid metal and the like, and can also be used for delivering liquid, gas mixture and liquid containing suspended solids.

The pump body of the existing water pump is usually cast by cast iron, however, the surface roughness of the cavity body of the pump body produced in the mode is large, when liquid is conveyed, the energy of the liquid can be lost, the lift of the water pump is small, and the pump body can rust after conveying the liquid for a long time, so that the conveyed liquid is polluted.

Accordingly, the prior art is subject to improvement and development.

Disclosure of Invention

The utility model aims to provide a pump body structure and a water pump, which not only can improve the lift of the water pump, but also can avoid the cavity from rusting.

In a first aspect, the utility model provides a pump body structure, which comprises a pump body and an end cover, wherein the pump body is provided with a water inlet, a cavity and a water outlet which are sequentially communicated, and the end cover is covered on the cavity; the cavity is internally provided with a flow guide assembly made by an injection molding process, the flow guide assembly comprises a first flow guide piece and a second flow guide piece which are oppositely arranged, the first flow guide piece is connected with the inner side wall of the cavity, the second flow guide piece is connected with the end cover, the edge of one surface of the first flow guide piece opposite to the second flow guide piece is provided with a first boss, the edge of one surface of the second flow guide piece opposite to the first flow guide piece is provided with a second boss, the first boss is abutted with the second boss, so that a flow guide channel is formed between the first flow guide piece and the second flow guide piece, the inlet of the flow guide channel is communicated with the water inlet, and the outlet of the flow guide channel is communicated with the water outlet.

According to the pump body structure, due to the design of the flow guide assembly manufactured by the injection molding process in the cavity, the lost liquid energy when the water pump conveys liquid is reduced, so that the lift of the water pump is increased, in addition, the flow guide assembly manufactured by the injection molding process is not easy to rust when being contacted with the liquid, and pollution to the conveyed liquid can be avoided.

Further, a first wear-resistant part is arranged on one surface of the first flow guiding part, which is opposite to the second flow guiding part, and a second wear-resistant part is arranged on one surface of the second flow guiding part, which is opposite to the first flow guiding part, and the first wear-resistant part is opposite to the second wear-resistant part.

According to the utility model, the first wear-resistant piece is arranged on the opposite side of the first flow guiding piece and the second wear-resistant piece is arranged on the opposite side of the second flow guiding piece and the first flow guiding piece, so that after the impeller is arranged in the flow guiding channel, the opposite end surfaces of the impeller are respectively abutted with the first wear-resistant piece and the second wear-resistant piece, and compared with the condition that the opposite end surfaces of the impeller are directly abutted with the first flow guiding piece and the second flow guiding piece, the wear resistance of the first flow guiding piece and the second flow guiding piece is effectively improved.

Further, the first wear-resistant member protrudes toward the second guiding member, and the second wear-resistant member protrudes toward the first guiding member.

According to the utility model, the first wear-resistant piece is designed to be protruded towards the second guide piece and the second wear-resistant piece is designed to be protruded towards the first guide piece, so that the blades of the impeller cannot be contacted with the first guide piece and the second guide piece, and the normal work of the impeller is prevented from being influenced by the contact of the blades of the impeller with the first guide piece and the second guide piece.

Further, the first flow guiding piece is provided with a positioning block, and the positioning block is located between the water inlet and the water outlet.

Further, the inlet of the flow guiding channel is provided with a flow guiding inclined plane, so that the inlet of the flow guiding channel is gradually reduced along the flowing direction of the liquid.

Further, the first guide member is connected to the inner side wall of the cavity in an adhesive manner.

Further, the second guide piece and the end cover are integrally formed.

Further, a baffle is arranged at the water inlet.

In a second aspect, the present utility model provides a water pump, including the pump body structure of the first aspect.

Further, the water pump further comprises an impeller and a motor, wherein the impeller is arranged in the diversion channel, and two opposite end surfaces of the impeller are respectively abutted against one surface of the first diversion piece opposite to the second diversion piece and one surface of the second diversion piece opposite to the first diversion piece; and an output shaft of the motor extends into the diversion channel and is connected with the impeller.

According to the pump body structure and the water pump, the design of the flow guide assembly manufactured by the injection molding process is arranged in the cavity, so that the lost liquid energy when the water pump conveys liquid is reduced, the lift of the water pump is increased, in addition, the flow guide assembly manufactured by the injection molding process is not easy to rust when being contacted with the liquid, and pollution to the conveyed liquid can be avoided.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

Fig. 1 is a schematic structural diagram of a pump body structure according to an embodiment of the present utility model.

Fig. 2 is an exploded view of a pump body structure according to an embodiment of the present utility model.

Fig. 3 is a radial cross-sectional view of a pump body structure according to an embodiment of the present utility model.

Fig. 4 is an axial cross-sectional view of a pump body structure according to an embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of a water pump according to an embodiment of the present utility model.

Fig. 6 is a cross-sectional view of a water pump according to an embodiment of the present utility model.

Description of the reference numerals: 10. a pump body; 101. a water inlet; 102. a cavity; 103. a water outlet; 20. an end cap; 30. a first flow guide; 301. a first boss; 302. a first wear member; 303. a positioning block; 40. a second flow guide; 401. a second boss; 402. a second wear member; 50. a diversion channel; 501. a diversion inclined plane; 60. a baffle; 70. an impeller; 80. and a motor.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In a first aspect, as shown in fig. 1, 2, 3 and 4, the pump body structure of the present utility model includes a pump body 10 and an end cap 20. The pump body 10 has a water inlet 101, a cavity 102 and a water outlet 103, which are sequentially communicated, and the end cover 20 is covered on the cavity 102. A flow guiding component manufactured by injection molding technology is arranged in the cavity 102. The guide assembly comprises a first guide piece 30 and a second guide piece 40 which are oppositely arranged, the first guide piece 30 is connected with the inner side wall of the cavity 102, the second guide piece 40 is connected with the end cover 20, a first boss 301 is arranged at the edge of one surface of the first guide piece 30 opposite to the second guide piece 40, a second boss 401 is arranged at the edge of one surface of the second guide piece 40 opposite to the first guide piece 30, the first boss 301 is abutted to the second boss 401, so that a guide channel 50 is formed between the first guide piece 30 and the second guide piece 40, the inlet of the guide channel 50 is communicated with the water inlet 101, and the outlet of the guide channel 50 is communicated with the water outlet 103.

In a specific application, the impeller 70 is arranged in the diversion channel 50, liquid sequentially enters the diversion channel 50 through the water inlet 101 and the inlet of the diversion channel 50, the liquid entering the diversion channel 50 realizes pressurization under the action of the impeller 70, and then is sequentially discharged through the outlet of the diversion channel 50 and the water outlet 103, so that the liquid is conveyed. Because the flow guiding component is made by injection molding, the surface of the flow guiding channel 50 formed between the first flow guiding component 30 and the second flow guiding component 40 is smoother, and compared with the flow of liquid in the flow guiding channel 50 in the cavity 102 cast by cast iron, the energy of the liquid lost by the liquid is relatively reduced, so that a larger lift can be achieved.

Through this technical scheme for the liquid energy that loses when the water pump carried liquid reduces, thereby makes the lift increase of water pump, in addition, the water conservancy diversion subassembly that adopts injection molding to make is difficult for rustting with the contact of liquid, can avoid causing the pollution to the liquid of carrying.

In some preferred embodiments, the first wear member 302 is disposed on a side of the first flow guiding member 30 opposite the second flow guiding member 40, the second wear member 402 is disposed on a side of the second flow guiding member 40 opposite the first flow guiding member 30, and the first wear member 302 is opposite the second wear member 402. In a specific application, the first wear-resistant member 302 is disposed on the opposite side of the first flow guiding member 30 to the second flow guiding member 40, and the second wear-resistant member 402 is disposed on the opposite side of the second flow guiding member 40 to the first flow guiding member 30, so that after the impeller 70 is installed in the flow guiding channel 50, two opposite end surfaces of the impeller 70 are respectively abutted with the first wear-resistant member 302 and the second wear-resistant member 402, and compared with the two opposite end surfaces of the impeller 70 which are directly abutted with the first flow guiding member 30 and the second flow guiding member 40, the wear resistance of the first flow guiding member 30 and the second flow guiding member 40 is effectively improved. Specifically, the first wear-resistant member 302 and the second wear-resistant member 402 are made of copper, the first wear-resistant member 302 and the first guiding member 30 are integrally injection molded, the second wear-resistant member 402 and the second guiding member 40 are integrally injection molded, and the surfaces of the first wear-resistant member 302 and the second wear-resistant member 402 opposite to each other are finished.

In some preferred embodiments, the first wear member 302 is convex toward the second deflector 40 and the second wear member 402 is convex toward the first deflector 30. In a specific application, the first wear-resistant member 302 is designed to be protruded towards the second flow guiding member 40 and the second wear-resistant member 402 is designed to be protruded towards the first flow guiding member 30, so that the blades of the impeller 70 are not contacted with the first flow guiding member 30 and the second flow guiding member 40, that is, the blades of the impeller 70 are spaced from the surface of the first flow guiding member 30 close to the second flow guiding member 40 and the surface of the second flow guiding member 40 close to the first flow guiding member 30, and thus, the contact between the blades of the impeller 70 and the first flow guiding member 30 and the second flow guiding member 40 can be avoided to influence the normal operation of the impeller 70.

In some preferred embodiments, the first flow guiding element 30 has a positioning block 303, and the positioning block 303 is located between the water inlet 101 and the water outlet 103. In a specific application, by arranging the positioning block 303 on the first guiding element 30, the first guiding element 30 can be quickly installed at a predetermined position in the cavity 102, so as to improve the installation efficiency.

In some preferred embodiments, the inlet of the diversion channel 50 has a diversion slope 501, so that the inlet of the diversion channel 50 gradually decreases along the flowing direction of the liquid. In a specific application, by arranging the diversion slope 501 at the inlet of the diversion channel 50, the inlet of the diversion channel 50 gradually decreases along the flowing direction of the liquid, so as to better transition the joint of the inlet of the diversion channel 50 and the water inlet 101, and avoid blocking the liquid due to the larger thickness of the inlet of the diversion channel 50.

In some preferred embodiments, the first flow guide 30 is attached to the inner sidewall of the cavity 102 by gluing. In specific application, the first flow guiding piece 30 is arranged on the inner side wall of the cavity 102 in an adhesive mode, so that the installation is convenient, gaps do not exist between the first flow guiding piece 30 and the inner side wall of the cavity 102, and liquid is prevented from entering between the first flow guiding piece 30 and the inner side wall of the cavity 102, and the cavity 102 is prevented from rusting. It should be noted that the glue used in the gluing mode is waterproof glue.

In some preferred embodiments, the second baffle 40 is integrally formed with the end cap 20. In a specific application, by designing the second guide member 40 and the end cover 20 to be integrally formed, not only the time for assembling the second guide member 40 and the end cover 20 can be saved, but also the precision of the fit between the first guide member 30 and the second guide member 40 can be fully ensured when the end cover 20 is mounted on the pump body 10.

In some preferred embodiments, a baffle 60 is provided at the water inlet 101. In a specific application, the baffle 60 is arranged along the flowing direction of the liquid, and the baffle 60 enables the water inlet 101 to be divided into a plurality of small water inlets 101, so that a blocking effect can be achieved on larger sundries, and the larger sundries are prevented from entering the diversion channel 50.

In a second aspect, as shown in fig. 5 and 6, the present utility model provides a water pump, which includes the pump body structure of the first aspect, and further includes an impeller 70 and a motor 80. The impeller 70 is disposed in the flow guiding channel 50, and opposite end surfaces of the impeller 70 respectively abut against one surface of the first flow guiding member 30 opposite to the second flow guiding member 40 and one surface of the second flow guiding member 40 opposite to the first flow guiding member 30. The output shaft of the motor 80 extends into the inducer channel 50 and is connected to the impeller 70.

In a specific application, the motor 80 generates a driving force to drive the impeller 70 to rotate at a high speed, the liquid entering the diversion channel 50 is thrown to the outer edge of the impeller 70 under the action of the centrifugal force generated by the impeller 70, flows into the water outlet 103 through the diversion channel 50, and forms vacuum after being thrown out under the action of the centrifugal force, the liquid in the water tank is pressed into the diversion channel 50 under the action of the atmospheric pressure, and the impeller 70 continuously rotates to enable the liquid in the diversion channel 50 to continuously flow in and flow out under the action of the impeller 70, so that the purpose of conveying the liquid is achieved.

In summary, according to the pump body structure and the water pump provided by the utility model, due to the design that the flow guide assembly manufactured by the injection molding process is arranged in the cavity, the energy of the liquid lost when the water pump conveys the liquid is reduced, so that the lift of the water pump is increased, in addition, the flow guide assembly manufactured by the injection molding process is not easy to rust when being contacted with the liquid, and the pollution to the conveyed liquid can be avoided.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. The pump body structure comprises a pump body and an end cover, wherein the pump body is provided with a water inlet, a cavity and a water outlet which are sequentially communicated, and the end cover is covered on the cavity; the water inlet and the water outlet are arranged on the inner side of the cavity, the water inlet is connected with the water outlet, the water outlet is connected with the water inlet, the water outlet is connected with the water outlet, and the water outlet is connected with the water outlet.

2. The pump body structure of claim 1, wherein a face of the first flow guide member opposite the second flow guide member has a first wear member, and a face of the second flow guide member opposite the first flow guide member has a second wear member, the first wear member being opposite the second wear member.

3. The pump body structure of claim 2, wherein the first wear member is convex toward the second flow guide member and the second wear member is convex toward the first flow guide member.

4. The pump body structure of claim 1, wherein the first baffle has a locating block located between the water inlet and the water outlet.

5. The pump body structure of claim 1, wherein the inlet of the flow guide channel has a flow guide slope so that the inlet of the flow guide channel gradually decreases in the direction of the flow of the liquid.

6. The pump body structure of claim 1, wherein the first flow guide is adhesively attached to an inner sidewall of the cavity.

7. The pump body structure of claim 1, wherein the second baffle is integrally formed with the end cap.

8. Pump body structure according to claim 1, characterized in that the water inlet is provided with a baffle.

9. A water pump comprising a pump body structure according to any one of claims 1 to 8.

10. The water pump of claim 9, further comprising an impeller and a motor, wherein the impeller is disposed in the flow guide channel, and opposite end surfaces of the impeller respectively abut against a surface of the first flow guide opposite to the second flow guide and a surface of the second flow guide opposite to the first flow guide; and an output shaft of the motor extends into the diversion channel and is connected with the impeller.

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