CN215979973U - Fluid structure of water pump - Google Patents
Fluid structure of water pump Download PDFInfo
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- CN215979973U CN215979973U CN202122703114.0U CN202122703114U CN215979973U CN 215979973 U CN215979973 U CN 215979973U CN 202122703114 U CN202122703114 U CN 202122703114U CN 215979973 U CN215979973 U CN 215979973U
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- impeller
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- water pump
- annular
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Abstract
The utility model belongs to the technical field of water pumps, and relates to a fluid structure of a water pump, which comprises a pump body, a base, a flow guide cover and an impeller, wherein the base is connected to the bottom of the pump body, the flow guide cover and the impeller are arranged in the pump body, the impeller is sleeved on a rotating shaft of a motor, the flow guide cover is fixedly connected with the base, the impeller is assembled between the flow guide cover and the base, a water inlet is formed in the base, a downward annular flange is arranged at the bottom of the impeller and forms a suction inlet, a U-shaped structure is arranged at the water inlet, the annular flange is wrapped by the U-shaped structure, and the U-shaped structure is in clearance fit with the annular flange. The fluid structure of the water pump provided by the utility model reduces the lift loss of the water pump.
Description
Technical Field
The utility model belongs to the technical field of water pumps, and relates to a fluid structure of a water pump.
Background
The water pump generally comprises a pump body, a base, a flow guide cover and an impeller, wherein the base is connected to the bottom of the pump body, the flow guide cover and the impeller are arranged in the pump body, and the impeller is sleeved on a rotating shaft of a motor. When the water pump works, the motor drives the impeller to rotate, liquid is sucked into the impeller from the water inlet of the water pump, and water is thrown to the flow guide cover along with the rotation of the impeller and enters the water outlet flow channel after being guided by the flow guide cover. A gap exists between the outer side of the impeller and the flow guide cover, and part of water thrown to the flow guide cover leaks from the gap and flows out of the water pump along the upper plane of the base, so that the lift loss of the water pump is caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a fluid structure of a water pump, and the lift loss of the water pump is reduced.
In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:
the utility model provides a fluid structure of water pump, the water pump includes the pump body, base, water conservancy diversion lid and impeller, the base is connected in pump body bottom, and water conservancy diversion lid and impeller setting are in the pump body, and the impeller cover is established in the pivot of motor, water conservancy diversion lid and base fixed connection, the impeller assembly is between water conservancy diversion lid and base, be provided with the water inlet on the base, the bottom of impeller is provided with decurrent annular flange and forms the sunction inlet, water inlet department is provided with the U-shaped structure, the annular flange is lived in the U-shaped structure parcel, U-shaped structure and annular flange clearance fit.
In the fluid structure of the water pump, the U-shaped structure includes a first annular portion, an arc-shaped connecting portion and a second annular portion, the first annular portion is connected to the base plane and located outside the annular flange, the second annular portion is located inside the annular flange, and the arc-shaped connecting portion connects the first annular portion and the second annular portion and is located below the annular flange. The first annular portion, the arc-shaped connecting portion and the second annular portion are integrated.
In the fluid structure of the water pump, the first annular part is bent downwards along the plane of the base, and the second annular part is vertically arranged upwards.
In the fluid structure of the water pump, the lower end surface of the annular flange is lower than the upper plane of the base, and the upper end surface of the second annular portion is higher than the upper plane of the base and lower than the lower plane of the impeller.
In the fluid structure of the water pump, the U-shaped structure is integrally formed with the base.
In the fluid structure of the water pump, the U-shaped structure, the annular flange, the impeller, and the deflector cover are coaxially disposed.
In the fluid structure of the water pump, the impeller is a closed impeller.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a novel fluid structure of a water pump, wherein a U-shaped structure is added on a base, and liquid leaked from the outer side of an impeller can flow back to a suction inlet of the impeller through the U-shaped structure, so that the lift loss of the water pump is reduced through the backflow of leaked water.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
reference numerals: 1. a pump body; 2. a base; 3. a flow guide cover; 4. an impeller; 5. a rotating shaft; 6. an annular flange; 7. a U-shaped structure; 7a, a first annular portion; 7b, an annular connecting part; 7c, a second annular portion.
Detailed Description
The utility model is further described in the following with specific embodiments in conjunction with the accompanying drawings, see fig. 1-2:
the utility model provides a fluid structure of water pump, the water pump includes the pump body 1, base 2, water conservancy diversion lid 3 and impeller 4, base 2 is connected in 1 bottom of the pump body, and water conservancy diversion lid 3 sets up in the pump body 1 with impeller 4, and 4 covers of impeller are established on the pivot 5 of motor, water conservancy diversion lid 3 and 2 fixed connection of base, impeller 4 assembles between water conservancy diversion lid 3 and base 2, be provided with the water inlet on the base 2, the bottom of impeller 4 is provided with decurrent annular flange 6 and forms the sunction inlet, water inlet department is provided with U-shaped structure 7, annular flange 6 is lived in 7 parcel of U-shaped structure, U-shaped structure 7 and 6 clearance fit of annular flange.
Referring to fig. 1, the arrow direction in the figure is the water flow direction, and the working process of the utility model is as follows: liquid enters from the water inlet, the water in the water inlet is sucked into the impeller 4 by the rotating impeller 4, the water is thrown to the flow guide cover 3 after being pressurized, the water enters the water outlet flow channel after being guided by the flow guide cover 3, part of the water thrown to the flow guide cover 3 is leaked from the gap at the outer side of the impeller 4 and flows into the U-shaped structure 7 along the upper plane of the base 2, the water flowing into the U-shaped structure 7 cannot flow out of the flow channel pump but is directly sucked into the impeller 4 through the suction inlet of the impeller 4, and the lift loss of the water pump is reduced through the backflow of the leaked water.
To the group of fig. 2, the U-shaped structure 7 includes a first annular portion 7a, an arc-shaped connecting portion and a second annular portion 7c, the first annular portion 7a is connected with the base plane and located outside the annular flange 6, the second annular portion 7c is located inside the annular flange 6, and the arc-shaped connecting portion connects the first annular portion 7a and the second annular portion 7c and is located below the annular flange 6. The first annular portion 7a, the arc-shaped connecting portion and the second annular portion 7c are an integral body.
For better leakage water flow into the U-shaped structure 7, the first annular portion 7a is bent downwards along the base plane, and for better leakage water flow out of the pump, the second annular portion 7c is arranged vertically upwards.
In order to facilitate the impeller 4 to suck the leakage water in the U-shaped structure 7, the lower end surface of the annular flange 6 is lower than the upper plane of the base, and the upper end surface of the second annular part 7c is higher than the upper plane of the base and lower than the lower plane of the impeller.
The U-shaped structure 7 is formed integrally with the base 2.
The U-shaped structure 7, the annular flange 6, the impeller 4 and the flow guide cover 3 are coaxially arranged.
The impeller 4 is a closed impeller.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (7)
1. The utility model provides a fluid structure of water pump, the water pump includes the pump body (1), base (2), water conservancy diversion lid (3) and impeller (4), base (2) are connected in pump body (1) bottom, and water conservancy diversion lid (3) and impeller (4) set up in the pump body (1), and impeller (4) cover is established on pivot (5) of motor, its characterized in that, water conservancy diversion lid (3) and base (2) fixed connection, impeller (4) assembly is between water conservancy diversion lid (3) and base (2), be provided with the water inlet on base (2), the bottom of impeller (4) is provided with decurrent annular flange (6) and forms the sunction inlet, water inlet department is provided with U-shaped structure (7), annular flange (6) are lived in U-shaped structure (7) parcel, U-shaped structure (7) and annular flange (6) clearance fit.
2. A fluid structure of a water pump according to claim 1, characterized in that the U-shaped structure (7) comprises a first annular portion (7a), an annular connection portion (7b) and a second annular portion (7c), the first annular portion (7a) being connected with the base plane and located outside the annular flange (6), the second annular portion (7c) being located inside the annular flange (6), the annular connection portion (7b) connecting the first annular portion (7a) with the second annular portion (7c) and located below the annular flange (6).
3. A fluid structure of a water pump according to claim 2, characterized in that the first annular portion (7a) is bent downwards along the base plane and the second annular portion (7c) is arranged vertically upwards.
4. A fluid structure of a water pump according to claim 3, wherein the lower end surface of the annular flange (6) is lower than the upper plane of the base, and the upper end surface of the second annular portion (7c) is higher than the upper plane of the base and lower than the lower plane of the impeller.
5. A fluid structure of a water pump according to claim 1, characterized in that the U-shaped structure (7) is formed integrally with the base (2).
6. The fluid structure of a water pump according to claim 1, characterized in that the U-shaped structure (7), the annular flange (6), the impeller (4) and the deflector cover (3) are coaxially arranged.
7. A fluid structure of a water pump according to claim 1, characterized in that the impeller (4) is a shrouded impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122703114.0U CN215979973U (en) | 2021-11-02 | 2021-11-02 | Fluid structure of water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122703114.0U CN215979973U (en) | 2021-11-02 | 2021-11-02 | Fluid structure of water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215979973U true CN215979973U (en) | 2022-03-08 |
Family
ID=80571712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122703114.0U Active CN215979973U (en) | 2021-11-02 | 2021-11-02 | Fluid structure of water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215979973U (en) |
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2021
- 2021-11-02 CN CN202122703114.0U patent/CN215979973U/en active Active
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