A stable sealing connection structure of a water outlet of a water pump

By designing the main connecting pipe and auxiliary sleeve, and utilizing the rotational engagement of the hook and rubber sealing plate, as well as the cooperation of multiple sealing rings, the sealing and stability issues of the water pump outlet connection structure are solved, achieving efficient liquid transportation and stable equipment operation.

CN224453054UActive Publication Date: 2026-07-03HUBEI YANGZIJIANG PUMP (WUHAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI YANGZIJIANG PUMP (WUHAN) CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing water pump outlet connection structure has problems such as poor sealing effect, easy aging, unstable structure and cumbersome operation, which affect the efficiency and safety of liquid transportation.

Method used

The design employs a main connecting pipe and an auxiliary sleeve. The hook embedded in the groove engages with the rubber sealing plate through rotation, and multiple sealing rings work together to form a three-dimensional sealing barrier, achieving convenient connection and a stable structure.

Benefits of technology

It improves sealing performance, prevents liquid leakage, enhances connection stability and coaxiality, and ensures normal operation of the pump system under vibration and pressure.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224453054U_ABST
    Figure CN224453054U_ABST
Patent Text Reader

Abstract

This utility model discloses a stable and sealed connection structure for a water pump outlet, including a main connecting pipe. An auxiliary sleeve is engaged on one side of the main connecting pipe. A connecting flange is fixedly fitted onto one end of the main connecting pipe and one end of the auxiliary sleeve. The connecting flanges correspond to each other. An embedding groove is formed on the surface of the connecting flange. Hooks are fixedly installed on both sides of the inner wall of the embedding groove. Rubber sealing plates are fixedly installed on both sides of the inner wall of the embedding groove. The volume of the rubber sealing plate is the same as the inner volume of the hook. The embedding grooves are engaged with each other by means of the hooks and the rubber sealing plates rotating together. The sealing ring groove of the main connecting pipe mates with the sealing ring three. The sealing ring two of the auxiliary sleeve is parallel and corresponds to the sealing ring one of the main connecting pipe, forming a three-dimensional sealing barrier. The rubber sealing plate fills the inner side of the hook. When the connecting flanges are engaged with each other, the rubber sealing plate fits tightly, effectively preventing liquid leakage. The multiple sealing structures complement each other. Even if one sealing component is slightly worn, the other sealing structures can still ensure the overall sealing performance.
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Description

Technical Field

[0001] This utility model relates to the field of sealing connection structure technology, and in particular to a stable sealing connection structure for a water pump outlet. Background Technology

[0002] In industrial production, urban water supply, and agricultural irrigation, water pumps are crucial equipment for transporting liquids. The connection structure of the pump outlet directly affects the efficiency and safety of liquid transport. For example, in chemical production, if the connection is not properly sealed when transporting corrosive liquids, it may lead to liquid leakage, causing environmental pollution and safety accidents. In urban water supply systems, an unstable connection structure will affect the stability of the water supply and reduce the user experience.

[0003] Currently, there are several problems with common water pump outlet connection structures on the market. Some connection structures use simple flange bolt connections, relying on a single sealing gasket for sealing. Under long-term vibration of the water pump, the sealing gasket is prone to aging and deformation, leading to liquid leakage. Moreover, bolt connections are cumbersome to operate, with time-consuming installation and disassembly, which is detrimental to equipment maintenance and repair. Other connection structures, while having some sealing design, lack structural stability and cannot withstand the large pressure and vibration of the water pump during operation, easily leading to loosening or even detachment of the connection.

[0004] Therefore, we propose a robust and sealed connection structure for the water pump outlet. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a stable and sealed connection structure for the water pump outlet.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A stable and sealed connection structure for a water pump outlet includes a main connecting pipe. An auxiliary sleeve is engaged on one side of the main connecting pipe. A connecting flange is fixedly fitted onto one end of the main connecting pipe and one end of the auxiliary sleeve. The connecting flanges correspond to each other. An embedding groove is formed on the surface of the connecting flange. Hooks are fixedly installed on both sides of the inner wall of the embedding groove. As a further embodiment of this utility model, rubber sealing pieces are fixedly installed on both sides of the inner wall of the embedding groove. The volume of the rubber sealing pieces is the same as the inner volume of the hooks. The embedding grooves are engaged with each other by means of the hooks and the rubber sealing pieces rotating together.

[0008] As a further embodiment of this utility model: the embedded groove is annular in side view, and a sealing ring groove is provided on the inner wall of the main connecting pipe. A sealing ring is fixedly provided on the surface of the connecting flange side of the main connecting pipe.

[0009] As a further improvement of this utility model: a mounting flange is fixedly provided at the other end of the main connecting pipe, and the mounting flange is used to connect to the water pump outlet.

[0010] As a further improvement of this utility model: a protruding tube is fixedly provided on one side of the auxiliary sleeve, and the protruding tube engages with the inner wall of the main connecting tube.

[0011] As a further embodiment of this utility model: the side diameter of the convex tube is the same as that of the main connecting tube, and the convex tube engages with the main connecting tube.

[0012] As a further improvement of this utility model: a second sealing ring is fixedly provided on one side of the auxiliary sleeve, the second sealing ring is parallel to the first sealing ring, and the radius of the second sealing ring is slightly smaller than that of the first sealing ring.

[0013] As a further improvement of this utility model: a sealing ring three is sleeved on the surface of the convex tube, and the sealing ring three engages with the sealing ring groove.

[0014] Compared with the prior art, this utility model provides a stable and sealed connection structure for the water pump outlet, which has the following advantages:

[0015] 1. In this utility model, the sealing ring groove of the main connecting pipe mates with the sealing ring three, and the sealing ring two of the auxiliary sleeve corresponds parallel to the sealing ring one of the main connecting pipe, forming a three-dimensional sealing barrier. The rubber sealing sheet is filled inside the hook. When the connecting flanges rotate and engage, the rubber sealing sheet fits tightly, effectively preventing liquid leakage. The multiple sealing structures complement each other. Even if one of the sealing components experiences slight wear, the other sealing structures can still ensure the overall sealing performance, greatly improving the leak-proof performance of the device. It is suitable for working conditions with extremely high sealing requirements.

[0016] 2. In this utility model, the connecting flange achieves rotational engagement through hooks embedded in the inner wall of the groove and rubber sealing plates. Compared with traditional bolt connections, this connection method is more convenient to operate and can achieve automatic positioning during the connection process. The convex tube of the auxiliary sleeve is tightly engaged with the inner wall of the main connecting pipe. The two have the same side diameter, ensuring the coaxiality of the connection and enhancing the stability of the overall structure. It can not only withstand the vibration and pressure generated when the water pump is working, but also effectively prevent the connection from loosening, extend the service life of the device, and ensure the long-term stable operation of the water pump system.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a water pump outlet stable sealing connection structure proposed in this utility model;

[0019] Figure 2 This is a side view of the connecting flange structure of a water pump outlet stable sealing connection structure proposed in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the auxiliary sleeve for a stable sealing connection structure of a water pump outlet proposed in this utility model.

[0021] Figure 4 This utility model presents a three-dimensional structural diagram of the hook and rubber seal of a water pump outlet stable sealing connection structure.

[0022] In the diagram: 1. Main connecting pipe; 2. Auxiliary sleeve; 3. Connecting flange; 4. Embedded groove; 5. Hook; 6. Rubber sealing plate; 7. Sealing ring groove; 8. Sealing ring one; 9. Mounting flange; 10. Raised pipe; 11. Sealing ring two; 12. Sealing ring three. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example: A robust and sealed connection structure for a water pump outlet, such as... Figures 1-4As shown, the system includes a main connecting pipe 1, an auxiliary sleeve 2 that is engaged on one side of the main connecting pipe 1, and a connecting flange 3 that is fixedly fitted onto one end of the main connecting pipe 1 and one end of the auxiliary sleeve. The connecting flanges 3 correspond to each other, and an embedding groove 4 is formed on the surface of the connecting flange 3. Hooks 5 are fixedly set on both sides of the inner wall of the embedding groove 4, and rubber sealing plates 6 are fixedly set on both sides of the inner wall of the embedding groove 4. The volume of the rubber sealing plate 6 is the same as the inner volume of the hooks 5. The embedding grooves 4 are engaged with each other by rotating the hooks 5 and the rubber sealing plates 6. The embedding groove 4 is annular in side view. A sealing ring groove 7 is formed on the inner wall of the main connecting pipe 1, and a sealing ring 8 is fixedly set on the surface of the connecting flange 3 of the main connecting pipe 1. The connecting flange 3 is engaged with the rubber sealing plate 6 by rotating the hooks 5 on the inner wall of the embedding groove 4. Compared with the traditional bolt connection, this connection method is more convenient to operate and can achieve automatic positioning during the connection process. The protruding tube 10 of the auxiliary sleeve 2 is tightly engaged with the inner wall of the main connecting pipe 1. The two have the same side diameter, which ensures the coaxiality of the connection and enhances the stability of the overall structure.

[0026] like Figures 1-4 As shown, a mounting flange 9 is fixedly installed at the other end of the main connecting pipe 1. The mounting flange 9 is used to connect to the water pump outlet. A protruding pipe 10 is fixedly installed on one side of the auxiliary sleeve. The protruding pipe 10 is engaged with the inner wall of the main connecting pipe 1. The side diameter of the protruding pipe 10 is the same as that of the main connecting pipe 1. The protruding pipe 10 is engaged with the main connecting pipe 1.

[0027] like Figures 1-3 As shown, a second sealing ring 11 is fixedly installed on one side of the auxiliary sleeve. The second sealing ring 11 is parallel to the first sealing ring 8, and the radius of the second sealing ring 11 is slightly smaller than that of the first sealing ring 8. A third sealing ring 12 is fitted on the surface of the convex tube 10. The third sealing ring 12 engages with the sealing ring groove 7. The sealing ring groove 7 of the main connecting pipe 1 cooperates with the third sealing ring 12. The second sealing ring 11 of the auxiliary sleeve 2 is parallel and corresponds to the first sealing ring 8 of the main connecting pipe 1, forming a three-dimensional sealing barrier. The rubber sealing sheet 6 is filled inside the hook 5. When the connecting flange 3 is rotated and engaged, the rubber sealing sheet 6 fits tightly, effectively preventing liquid leakage.

[0028] Working Principle: During installation, first, fix the mounting flange 9 of the main connecting pipe 1 to the water pump outlet. Then, insert the convex tube 10 of the auxiliary sleeve 2 into the inner wall of the main connecting pipe 1, ensuring that the sealing ring 12 on the surface of the convex tube 10 fits tightly with the sealing ring groove 7 on the inner wall of the main connecting pipe 1, achieving initial sealing and positioning. Next, align the connecting flanges 3 of the main connecting pipe 1 and the auxiliary sleeve 2, and rotate them to engage the hook 5 embedded in the groove 4 with the rubber sealing piece 6. At this time, the sealing ring 8 and the sealing ring 11 also fit together, further enhancing the sealing effect. During the operation of the water pump, the liquid flows through the main connecting pipe 1 and the auxiliary sleeve 2 under pressure. The multiple sealing structures prevent liquid leakage from the connection points, while the rotation and engagement and the nested structure of the convex tube 10 ensure that the connection points remain stable under water pump vibration and pressure, guaranteeing the normal operation of the entire water pump system.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A robust and sealed connection structure for a water pump outlet, comprising a main connecting pipe (1), characterized in that: An auxiliary sleeve (2) is engaged on one side of the main connecting pipe (1). A connecting flange (3) is fixedly fitted on one end of the main connecting pipe (1) and one end of the auxiliary sleeve (2). The connecting flanges (3) correspond to each other. An embedding groove (4) is opened on the surface of the connecting flange (3). Hooks (5) are fixedly installed on both sides of the inner wall of the embedding groove (4). Rubber sealing pieces (6) are fixedly installed on both sides of the inner wall of the embedding groove (4). The volume of the rubber sealing piece (6) is the same as the inner volume of the hook (5). The embedding grooves (4) are engaged with each other by means of the hook (5) and the rubber sealing piece (6).

2. The water pump outlet stable sealing connection structure according to claim 1, characterized in that: The embedded groove (4) is annular in side view. A sealing ring groove (7) is provided on the inner wall of the main connecting pipe (1). A sealing ring (8) is fixedly provided on the surface of the connecting flange (3) side of the main connecting pipe (1).

3. The water pump outlet stable sealing connection structure according to claim 1, characterized in that: The other end of the main connecting pipe (1) is fixedly provided with a mounting flange (9), which is used to connect to the water pump outlet.

4. The water pump outlet stable sealing connection structure according to claim 3, characterized in that: A protruding tube (10) is fixedly provided on one side of the auxiliary sleeve (2), and the protruding tube (10) engages with the inner wall of the main connecting tube (1).

5. The water pump outlet stable sealing connection structure according to claim 4, characterized in that: The side diameter of the convex tube (10) is the same as that of the main connecting tube (1), and the convex tube (10) engages with the main connecting tube (1).

6. The water pump outlet stable sealing connection structure according to claim 5, characterized in that: A sealing ring two (11) is fixedly provided on one side of the auxiliary sleeve (2). The sealing ring two (11) is parallel to the sealing ring one (8), and the radius of the sealing ring two (11) is slightly smaller than that of the sealing ring one (8).

7. The water pump outlet stable sealing connection structure according to claim 6, characterized in that: The surface of the convex tube (10) is fitted with a sealing ring three (12), which engages with the sealing ring groove (7).