Water pump with improved pump body structure

By improving the pump body structure and setting a guide slope and a baffle at the tail end of the fan-shaped water outlet channel, the problem of uneven flow was solved, improving fluid delivery and start-up efficiency and ensuring efficient pump operation.

CN224228949UActive Publication Date: 2026-05-12ZHEJIANG TIANCI PUMP IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TIANCI PUMP IND CO LTD
Filing Date
2025-01-03
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing pump body structure results in a shortened flow channel distance, making it difficult to design a smooth flow channel structure, which affects the pump's working efficiency.

Method used

The pump body structure was improved by setting a guide slope in the inlet channel and a fan-shaped structure with a baffle at the end of the outlet channel. The baffle acts as a check valve to prevent fluid backflow, and there are no sharp angles between the channels.

Benefits of technology

It improves fluid transport efficiency and start-up efficiency, prevents backflow, and enhances the overall operating efficiency of the water pump.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224228949U_ABST
Patent Text Reader

Abstract

The utility model provides a water pump with an improved pump body structure, and belongs to the technical field of water pumps. The problem that in the prior art, the conveying efficiency of a flow channel in a pump body is not high enough is solved. The water pump comprises a water pump cover, a water pump body and a water pump motor, the water pump cover is fixedly connected to one side of the water pump body, a water inlet flow channel, a water outlet flow channel, a volute cavity and a water storage cavity are formed in the water pump body, the water inlet flow channel is communicated with a water inlet hole, and the water storage cavity is communicated with a water outlet hole. The volute cavity is located between the water inlet runner and the water outlet runner, the tail end of the water outlet runner is of a fan-shaped structure, a partition plate is arranged in the center of the tail end of the water outlet runner, the water pump body is fixedly connected with one end of the water pump motor, a driving shaft extends out of the water pump motor and extends into the water pump body, and the driving shaft is sleeved with a water pump impeller. The water pump impeller is located in the volute cavity. The pump body has the advantages of being high in conveying efficiency, good in damping performance and convenient to disassemble.
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Description

Technical Field

[0001] This utility model belongs to the field of water pump technology and relates to a water pump with an improved pump body structure. Background Technology

[0002] The pump body not only provides physical support and installation space for internal components, but also ensures efficient fluid flow through a reasonable flow channel design, withstands operating pressure, and assists in heat dissipation. It is a key component to ensure the normal operation of the pump.

[0003] Chinese patent publication number CN209604270U discloses a water pump body with an impeller cavity inside. The pump body is provided with an inlet and an outlet, which are arranged in a triangle with the impeller cavity. The inlet and outlet are located on the same side of the impeller cavity. The pump body is also provided with an inlet chamber and an outlet chamber that communicate with the impeller cavity. The inlet chamber is located between the inlet and the impeller cavity, and the outlet chamber is located between the outlet and the impeller cavity. A drain port is provided at the position of the impeller cavity. There are two outlet ports, including a horizontal outlet and a vertical outlet. The axes of the horizontal outlet and the vertical outlet are perpendicular to each other.

[0004] The patent provides a water pump body in which the inlet, outlet and impeller cavity are arranged in a triangular position to achieve a compact design. However, this structure shortens the flow channel distance inside the pump body and makes it difficult to make the flow channel into a smooth structure, which affects the working efficiency of the water pump. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the prior art by providing a water pump with an improved pump body structure.

[0006] The objective of this utility model can be achieved through the following technical solution: A water pump with an improved pump body structure includes a pump cover, a pump body, and a pump motor. The pump cover is fixedly connected to one side of the pump body. The upper end of the pump body is provided with an inlet hole and an outlet hole. The pump body has an inlet channel, an outlet channel, a volute chamber, and a storage chamber inside. The inlet channel, outlet channel, volute chamber, and storage chamber are interconnected. The inlet channel is connected to the inlet hole, and the storage chamber is connected to the outlet hole. The volute chamber is located between the inlet channel and the outlet channel. The outlet channel has a fan-shaped structure at its tail end, and a baffle is provided at the center of the tail end of the outlet channel. The pump body is fixedly connected to one end of the pump motor. A drive shaft extends out of the pump motor and extends into the pump body. A pump impeller is sleeved on the drive shaft and located inside the volute chamber.

[0007] In the above-mentioned improved pump body structure, a plurality of connecting columns are formed at one end of the pump body, and a plurality of mounting columns are formed at one end of the pump motor, with long bolts fixed in the connecting columns and mounting columns.

[0008] In the water pump with the improved pump body structure described above, a guide slope is provided in the water inlet channel.

[0009] In the water pump with the improved pump body structure described above, an inlet connector and an outlet connector are fixedly installed on the outside of the inlet hole and the outlet hole, respectively.

[0010] Compared with the prior art, the water pump with improved pump body structure provided by this utility model has the following beneficial effects: 1. By setting the guide slope in the inlet channel, the conveying efficiency of the fluid in the inlet channel is improved; 2. By setting the tail end of the outlet channel as a fan-shaped structure and setting a baffle at the tail end of the outlet channel, it acts as a check valve to prevent the fluid from flowing back when this utility model stops working. Moreover, by preventing backflow, the baffle can ensure that this utility model does not need to overcome the resistance of backflow when starting, thereby improving the starting efficiency and overall operating efficiency of this utility model. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the water pump body structure;

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the water pump body.

[0015] In the diagram: 1. Pump cover; 2. Pump body; 21. Inlet hole; 22. Outlet hole; 23. Inlet channel; 231. Guide slope; 24. Outlet channel; 25. Volute chamber; 26. Storage chamber; 27. Baffle plate; 28. Connecting column; 3. Pump motor; 31. Mounting column; 4. Drive shaft; 5. Pump impeller; 6. Long bolt; 7. Inlet connector; 8. Outlet connector. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figures 1 to 4As shown, this embodiment includes a water pump cover 1, a water pump body 2, a water pump motor 3, a drive shaft 4, and a water pump impeller 5. The water pump cover 1 is fixedly connected to one side of the water pump body 2. The water pump body 2 is fixedly connected to one end of the water pump motor 3. The drive shaft 4 extends out of the water pump motor 3 and extends into the water pump body 2. The water pump impeller 5 is sleeved on the drive shaft 4. Several connecting columns 28 are formed at the rear end of the water pump body 2. The front end of the water pump motor 3 is formed with mounting columns 31 that cooperate with the connecting columns 28. Long bolts 6 are fixed through the connecting columns 28 and the mounting columns 31. Through the structural design of the connecting columns 28 and the mounting columns 31, the seismic resistance between the water pump body 2 and the water pump motor 3 is improved, and the assembly and disassembly of the water pump body 2 and the water pump motor 3 are facilitated.

[0018] like Figures 3 to 4 As shown, the pump body 2 has an inlet hole 21 on its upper side and an outlet hole 22 on its upper top surface. The pump body 2 contains an inlet channel 23, an outlet channel 24, a volute chamber 25, and a storage chamber 26, all of which are interconnected. The inlet channel 23 is connected to the inlet hole 21, the storage chamber 26 is connected to the outlet hole 22, and the volute chamber 25 is spirally located at the inlet. Between the flow channel 23 and the outlet flow channel 24, the tail end of the outlet flow channel 24 has a fan-shaped structure, and a baffle 27 is provided at the center of the fan-shaped structure at the tail end of the outlet flow channel 24. The baffle 27 acts as a check valve. The pump impeller 5 is located inside the volute chamber 25, which transports the fluid in the inlet flow channel 23 to the outlet flow channel. There are no sharp angle structures between the inlet flow channel 23, the outlet flow channel 24, the volute chamber 25 and the water storage chamber 26, which reduces the resistance during fluid transport and improves the efficiency of this embodiment.

[0019] To elaborate further, such as Figure 4 As shown, a guide slope 231 is opened at the middle of the water inlet channel 23, and the guide slope 231 extends to the bottom of the water inlet channel 23.

[0020] To elaborate further, such as Figures 1 to 2 As shown, water inlet connector 7 and water outlet connector 8 are fixedly installed on the outside of water inlet hole 21 and water outlet hole 22, respectively.

[0021] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0022] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A water pump with an improved pump body structure, comprising a pump cover (1), a pump body (2), and a pump motor (3), wherein the pump cover (1) is fixedly connected to one side of the pump body (2), characterized in that: The pump body (2) has an inlet hole (21) and an outlet hole (22) on its upper end. The pump body (2) has an inlet channel (23), an outlet channel (24), a volute chamber (25), and a storage chamber (26) inside. The inlet channel (23), outlet channel (24), volute chamber (25), and storage chamber (26) are interconnected. The inlet channel (23) is connected to the inlet hole (21), the storage chamber (26) is connected to the outlet hole (22), and the volute chamber (25) is connected to the outlet hole (22). 25) Located between the inlet channel (23) and the outlet channel (24), the outlet channel (24) has a fan-shaped structure at its tail end, and a baffle (27) is provided at the center of the outlet channel (24). The pump body (2) is fixedly connected to one end of the pump motor (3). A drive shaft (4) extends out of the pump motor (3). The drive shaft (4) extends into the pump body (2). A pump impeller (5) is sleeved on the drive shaft (4). The pump impeller (5) is located inside the volute chamber (25).

2. The water pump with an improved pump body structure according to claim 1, characterized in that: The pump body (2) has a plurality of connecting columns (28) at one end, and the pump motor (3) has a plurality of mounting columns (31) at one end. Long bolts (6) are fixed in the connecting columns (28) and the mounting columns (31).

3. A water pump with an improved pump body structure according to claim 1, characterized in that: The water inlet channel (23) is provided with a guide slope (231).

4. A water pump with an improved pump body structure according to claim 1, characterized in that: The inlet hole (21) and outlet hole (22) are respectively fixedly installed with an inlet connector (7) and an outlet connector (8).