A water pump head

Abstract

The utility model provides a kind of water pump pump head, belong to water pump technical field.It solves the problem of insufficient structural strength of pump head in prior art.The utility model includes pump cover, pump head main body and connecting disc body, pump head main body is integrally formed and pump body main body includes water storage body and impeller body, water storage body and impeller body inside form water storage chamber and impeller chamber respectively, water storage chamber and impeller chamber are interconnected, connecting convex is formed outside impeller body and pump cover is attached with connecting convex and is fixed by bolt, water pump impeller is installed in impeller chamber, the pump head main body of one side of water storage chamber is formed with sealing cylinder, sealing assembly is installed in sealing cylinder, the periphery of pump head main body is formed with a plurality of first connecting columns, the periphery of connecting disc body is formed with a plurality of second connecting columns, first connecting column and second connecting column correspond and the end face of first connecting column and the end face of second connecting column are attached with setting.The utility model has the advantages of higher structural strength.

Description

Technical Field

[0001] This utility model belongs to the field of water pump technology and relates to a water pump head. Background Technology

[0002] The pump head is the core component of a water pump, integrating the pump body, impeller chamber, and other structures. It is responsible for the intake, pressurization, and discharge of fluid. Working in conjunction with the motor, it achieves power conversion through the rotation of the internal impeller, precisely controls fluid delivery, and is suitable for various working conditions. It is a key unit to ensure efficient water delivery and meet the water needs of different scenarios.

[0003] Chinese patent publication number CN221374065U discloses a water pump head. The water pump head is equipped with an exhaust device, which includes an exhaust column and a control ball arranged inside the exhaust column. A sealing ring is provided inside the exhaust column, and the control ball is detachably connected to the sealing ring. A conical channel is provided inside the sealing ring, and the control ball is detachably connected to the conical channel. The cross-section of the conical channel is an arc-shaped structure. The water pump body is provided with an exhaust hole, and the exhaust column is arranged on the exhaust hole. An air-gathering groove is provided on the inner wall of the water pump head, and the exhaust hole is arranged in the middle of the air-gathering groove. The exhaust device also includes an exhaust connector, the end of which extends into the conical channel.

[0004] The patent provides a pump head in which the pump head is a single type of disc structure. The edges of the disc structure are prone to stress concentration due to abrupt changes in shape, which affects the strength and reliability of the pump head. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a water pump head.

[0006] The objective of this utility model can be achieved through the following technical solution: A water pump head includes a pump cover, a pump head body, and a connecting disc. The pump head body is integrally formed and includes a water storage body and an impeller body. The water storage body and the impeller body respectively form a water storage chamber and an impeller chamber, which are interconnected. A connecting protrusion is formed on the outside of the impeller body, and the pump cover is attached to the connecting protrusion and fixed by bolts. A water pump impeller is installed in the impeller chamber. A sealing cylinder is formed on one side of the pump head body of the water storage chamber. A sealing component is installed in the sealing cylinder. A plurality of first connecting posts are formed on the outer periphery of the pump head body and the first connecting posts extend out of one side of the pump head body. A plurality of second connecting posts are formed on the outer periphery of the connecting disc and the second connecting posts extend out of one side of the connecting disc. The first connecting posts and the second connecting posts correspond to each other and the end faces of the first connecting posts and the end faces of the second connecting posts are attached to each other. Long fastening bolts are fixed through the first connecting posts and the second connecting posts.

[0007] In the above-mentioned pump head, a first support block is formed on the inner side of the first connecting column, and a second support block is formed on the inner side of the second connecting column. A first limiting groove and a second limiting groove are formed in the first support block and the second support block, respectively, and the end faces of the first limiting groove and the second limiting groove are in contact with each other.

[0008] In the above-mentioned pump head, an inlet flange with an inlet hole is formed on one side of the upper end of the pump head body, and an outlet flange with an outlet hole is formed at the top of the pump head body. An inlet connector and an outlet connector are fixedly connected to the outside of the inlet flange and the outlet flange, respectively.

[0009] In the above-mentioned pump head, two outlet guide channels are provided between the water storage chamber and the impeller chamber, and an inlet guide channel is provided between the impeller chamber and the inlet hole. A guide slope is formed in the inlet guide channel.

[0010] Compared with the prior art, the water pump head provided by this utility model has the following beneficial effects:

[0011] 1. The structure adopts a corresponding fit between the first and second connecting columns and the long fastening bolts for fixation, forming a connection mode with multiple points of uniform force distribution. This avoids local stress concentration caused by single-point force distribution. The cooperation between the first and second support blocks, through the fit between the end faces of the first and second limiting grooves, further restricts the relative displacement between the pump head body and the connecting plate body. When the water pump vibrates during operation, it can effectively resist lateral forces and enhance the overall connection's resistance to deformation.

[0012] 2. The pump head body adopts an integrated molding process, and the water storage body and impeller body are seamlessly connected, so that the stress distribution of the pump head body is more uniform when it is subjected to water flow pressure and impeller force;

[0013] 3. The guide slope in the water inlet channel not only optimizes the water flow direction and reduces hydraulic loss, but its slope structure also disperses the impact force of the water flow on the channel wall, reducing local wear and stress concentration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0016] Figure 3 This is a schematic diagram of one side of the pump head body;

[0017] Figure 4 This is a schematic diagram of the connecting disk structure;

[0018] Figure 5This is a schematic diagram of the cross-sectional structure of the pump head.

[0019] In the diagram: 1. Pump cover; 2. Pump head body; 21. Water storage body; 211. Water storage chamber; 22. Impeller body; 221. Impeller chamber; 23. Connecting protrusion; 24. Sealing cylinder; 25. First connecting column; 251. First support block; 252. First limiting groove; 26. Inlet flange; 261. Inlet hole; 27. Outlet flange; 271. Outlet hole; 28. Outlet guide channel; 29. ​​Inlet guide channel; 291. Guide slope; 3. Connecting disc; 31. Second connecting column; 311. Second support block; 312. Second limiting groove; 4. Pump impeller; 5. Sealing assembly; 6. Long fastening bolt; 7. Inlet connector; 8. Outlet connector. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 5 As shown, this embodiment includes a pump cover 1, a pump head body 2, and a connecting disc 3. The pump head body 2 is made using an integral molding process. The pump head body 2 consists of a water storage body 21 and an impeller body 22. The water storage body 21 forms a water storage chamber 211 inside, and the impeller body 22 forms an impeller chamber 221 inside. The water storage chamber 211 and the impeller chamber 221 are interconnected, providing a complete channel for water circulation.

[0022] like Figures 1 to 3 As shown, the impeller body 22 has an integrally formed connecting protrusion 23 on its exterior. The pump cover 1 is tightly fitted to the end face of the connecting protrusion 23 and is fixedly connected by bolts to ensure the sealing performance of the impeller chamber 221. The impeller chamber 221 is equipped with a water pump impeller 4 for pressurizing and transporting water. The pump head body 2 on one side of the water storage chamber 211 has an integrally formed sealing cylinder 24. The sealing cylinder 24 is equipped with a sealing component 5, which can effectively prevent liquid leakage.

[0023] like Figures 2 to 4 As shown, a number of first connecting posts 25 are evenly distributed on the outer periphery of the pump head body 2. The first connecting posts 25 extend to the rear side of the pump head body 2. A number of second connecting posts 31 are formed on the outer periphery of the connecting disc 3 corresponding to the positions of the first connecting posts 25. The second connecting posts 31 extend to one side of the connecting disc 3. The first connecting posts 25 and the second connecting posts 31 correspond one-to-one, and the end faces of the first connecting posts 25 and the second connecting posts 31 are tightly fitted. The long fastening bolts 6 pass through the first connecting posts 25 and the second connecting posts 31 and are fastened to achieve a stable connection between the pump head body 2 and the connecting disc 3.

[0024] To elaborate further, such as Figure 3 and Figure 4 As shown, a first support block 251 is integrally formed on the inner side of the first connecting column 25, and a second support block 311 is correspondingly formed on the inner side of the second connecting column 31. A first limiting groove 252 is provided on the first support block 251, and a second limiting groove 312 is provided on the second support block 311. The end faces of the first limiting groove 252 and the second limiting groove 312 are fitted together, which can further limit the relative displacement between the pump head body 2 and the connecting disc body 3 and improve the connection stability.

[0025] To elaborate further, such as Figures 1 to 3 As shown, an inlet flange 26 is integrally formed on one side of the upper end of the pump head body 2, and an inlet hole 261 is provided in the inlet flange 26. An outlet flange 27 is integrally formed on the top of the pump head body 2, and an outlet hole 271 is provided in the outlet flange 27. An inlet connector 7 and an outlet connector 8 are respectively fixedly connected to the outside of the inlet flange 26 and the outlet flange 27 by bolts.

[0026] To elaborate further, such as Figure 5 As shown, two water outlet guide channels 28 are provided between the water storage chamber 211 and the impeller chamber 221 to guide the high-pressure water in the impeller chamber 221 to the water storage chamber 211. A water inlet guide channel 29 is provided between the impeller chamber 221 and the water inlet hole 261. A guide slope 291 is formed in the water inlet guide channel 29 to optimize the water inlet direction, reduce water flow resistance, and improve the working efficiency of this embodiment.

[0027] 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.

[0028] 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 head, comprising a pump cover (1), a pump head body (2), and a connecting disc (3), characterized in that: The pump head body (2) is integrally formed and includes a water storage body (21) and an impeller body (22). The water storage body (21) and the impeller body (22) respectively form a water storage chamber (211) and an impeller chamber (221). The water storage chamber (211) and the impeller chamber (221) are interconnected. A connecting protrusion (23) is formed on the outside of the impeller body (22), and the pump cover (1) is attached to the connecting protrusion (23) and fixed by bolts. A water pump impeller (4) is installed in the impeller chamber (221). A sealing cylinder (24) is formed on one side of the pump head body (2) of the water storage chamber (211). A sealing assembly (5) is installed in the sealing cylinder (24). A plurality of first connecting posts (25) are formed on the outer periphery of the pump head body (2) and the first connecting posts (25) extend out of one side of the pump head body (2). A plurality of second connecting posts (31) are formed on the outer periphery of the connecting disc body (3) and the second connecting posts (31) extend out of one side of the connecting disc body (3). The first connecting posts (25) and the second connecting posts (31) correspond to each other and the end faces of the first connecting posts (25) and the second connecting posts (31) are fitted together. Long fastening bolts (6) are fixed through the first connecting posts (25) and the second connecting posts (31).

2. A water pump head according to claim 1, characterized in that: A first support block (251) is formed on the inner side of the first connecting post (25), and a second support block (311) is formed on the inner side of the second connecting post (31). A first limiting groove (252) and a second limiting groove (312) are formed in the first support block (251) and the second support, respectively. The end faces of the first limiting groove (252) and the second limiting groove (312) are in contact with each other.

3. A water pump head according to claim 1, characterized in that: The pump head body (2) has an inlet flange (26) formed on one side of the upper end and an inlet hole (261) is provided. The pump head body (2) has an outlet flange (27) formed at the top and an outlet hole (271) is provided. The inlet flange (26) and the outlet flange (27) are respectively fixedly connected to the outside of the inlet flange (26) and the outlet flange (27).

4. A water pump head according to claim 1, characterized in that: Two water outlet guide channels (28) are provided between the water storage chamber (211) and the impeller chamber (221), and a water inlet guide channel (29) is provided between the impeller chamber (221) and the water inlet hole (261). A guide slope (291) is formed in the water inlet guide channel (29).

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