A rubber water sealing plug structure assembly
By designing the rubber water seal plug assembly and utilizing a combination of threaded connections and locking nuts, the problem of rubber water seal plugs loosening in high-pressure pipelines is solved, achieving better sealing performance and connection strength, making it suitable for leak prevention in high-pressure pipelines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TIMES CHUANGXING ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-31
AI Technical Summary
Existing rubber water seals are prone to loosening in high-pressure pipelines, have insufficient sealing performance, and cannot effectively prevent water or gas leakage.
The system employs a rubber sealing plug assembly, which includes a sealing jacket, an inner core, and a locking water pipe. The design of threaded connection and locking nut increases the friction between the sealing jacket and the inner wall of the pipe, and the metal cable ties are used to fix it to the outer wall of the pipe to improve the connection strength.
It enhances the tightness of the rubber sealing plug with the pipeline, can withstand greater water pressure, prevents leakage, is suitable for high-pressure pipelines, is easy to use and has good sealing performance.
Smart Images

Figure CN224579980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water seal plugs, specifically a rubber water seal plug structural assembly. Background Technology
[0002] A water seal plug is a plug used to seal water pipes or pipelines. Common types include plastic plugs, rubber plugs, and pipe tape. It is mainly used for temporary or permanent sealing of pipes and is typically installed at the joints of various pipes, equipment, or devices to effectively prevent leakage of water, gas, or other liquids. Rubber water seal plugs play a crucial role in water treatment, construction, water supply and drainage, and chemical industries.
[0003] Existing rubber water-sealing plugs typically rely on the friction between the rubber material and the inner wall of the pipe for fixation, and utilize the deformation of the plug head after insertion into the pipe for reinforcement. However, due to the fixed size of the water-sealing plug, the reinforcement force is limited, and it may loosen over time, making it unsuitable for sealing high-pressure pipelines and limiting its application. Therefore, those skilled in the art have provided a rubber water-sealing plug assembly to solve the problems mentioned in the background section. Utility Model Content
[0004] The purpose of this invention is to provide a rubber sealing plug assembly to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A rubber water-sealing plug assembly includes a sealing outer jacket, an inner core, and a locking water pipe. The sealing outer jacket is a cylindrical structure made of rubber. Three rows of triangular-section sealing grooves are provided on the outer bottom of the sealing outer jacket. A metal cylindrical inner core is provided in the upper center half of the sealing outer jacket, and a sealing conical hole is provided in the lower center half of the sealing outer jacket. The locking water pipe is threaded to the inner side of the inner core. The outer side of the locking water pipe is entirely provided with external threads. A locking nut is welded to the upper part of the locking water pipe. A sealing end cap is threaded to the top of the locking water pipe, and the outer side of the sealing end cap is provided with anti-slip texture.
[0007] As a further embodiment of this utility model: a sealing ring mounting groove is provided at the top outer side of the water-sealing jacket, and a rubber sealing ring is provided in the sealing ring mounting groove.
[0008] As a further improvement of this utility model: an annular connecting sleeve is provided below the top of the water-sealing jacket, and an external locking groove is provided in the middle of the outer side of the connecting sleeve, and a metal cable tie is provided in the external locking groove.
[0009] As a further embodiment of this utility model: the upper center part of the water-sealing jacket is provided with a mounting threaded hole, the inner core is threadedly connected to the mounting threaded hole and coated with sealant, the top of the inner core is provided with a connecting flange, and the connecting flange is bonded to the top of the water-sealing jacket.
[0010] As a further improvement of this utility model: a trapezoidal ring is welded to the bottom of the locking water pipe, and the trapezoidal ring is always in contact with the sealing cone hole.
[0011] As a further improvement of this utility model: a sealing gasket is provided on the top inner side of the sealing end cap, and a boss is provided in the center of the sealing gasket to slide and connect with the locking water pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, by rotating the locking nut, the locking water pipe and the inner core rotate relative to each other. The locking water pipe and the inner core are connected by threads, causing the locking water pipe to move towards the top of the sealing jacket. During this process, the trapezoidal ring at the top of the locking water pipe is always in contact with the inner wall of the sealing cone hole, and it squeezes the top of the sealing jacket to make it tightly fit with the inner wall of the pipe, increasing the fixing pressure, improving the friction between the sealing jacket and the inner wall of the pipe, resisting greater water pressure, providing better sealing, and being easy to use.
[0014] 2. In this utility model, an annular connecting sleeve is provided below the top of the water-sealing jacket, and an external locking groove is provided in the middle of the outer side of the connecting sleeve. By providing a metal cable tie in the external locking groove, the metal cable tie is tightened to make the connecting sleeve fit tightly against the outer wall of the pipe and fix it, thereby increasing the connection strength of the water-sealing jacket, preventing the water-sealing jacket from slipping off, and preventing leakage. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a top view of the structure of this utility model;
[0017] Figure 3 This is a structural schematic diagram of cross-section AA in this utility model;
[0018] Figure 4 This is a schematic cross-sectional view of the water-sealing jacket in this utility model;
[0019] Figure 5 This is a schematic diagram of the locking water pipe in this utility model.
[0020] In the diagram: 1. Water-sealing outer jacket; 2. Inner core; 3. Locking water pipe; 4. Sealing end cap; 5. Metal cable tie; 6. Sealing groove; 7. Sealing ring; 8. Sealing conical hole; 9. Locking nut; 10. Sealing gasket; 11. Connecting flange; 12. Mounting threaded hole; 13. External locking groove; 14. Sealing ring mounting groove; 15. Connecting sleeve; 16. Trapezoidal ring; 17. Anti-slip texture. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-5 In this embodiment of the utility model, a rubber water-sealing plug assembly includes a water-sealing outer jacket 1, an inner core 2, and a locking water pipe 3. The water-sealing outer jacket 1 is a cylindrical structure made of rubber. Three rows of triangular-section sealing grooves 6 are provided on the outer bottom of the water-sealing outer jacket 1. The upper half of the center of the water-sealing outer jacket 1 is provided with a metal cylindrical inner core 2, and the lower half of the center of the water-sealing outer jacket 1 is provided with a sealing conical hole 8. The locking water pipe 3 is connected to the inner side of the inner core 2 by threads. The outer side of the locking water pipe 3 is fully provided with external threads. A locking nut 9 is welded to the upper part of the locking water pipe 3. Rotating the locking water pipe 3 causes the locking water pipe 3 to move towards the sealing conical hole 8, squeezing the top of the water-sealing outer jacket 1, increasing the friction between the water-sealing outer jacket 1 and the water pipe, and increasing the reinforcement strength. It can be used for sealing pipes with higher water pressure. It is simple to install and easy to use. The top of the locking water pipe 3 is connected to a sealing end cap 4 by threads. The outer side of the sealing end cap 4 is provided with anti-slip texture 17, which facilitates the connection of external pipes and is easy to use.
[0023] Among them, a sealing ring mounting groove 14 is provided at the top of the outer side of the water-sealing jacket 1, and a rubber sealing ring 7 is provided in the sealing ring mounting groove 14 to improve the sealing performance of the water-sealing jacket 1.
[0024] Among them, an annular connecting sleeve 15 is provided below the top of the water-sealing jacket 1, and an external locking groove 13 is provided in the middle of the outer side of the connecting sleeve 15. A metal cable tie 5 is provided in the external locking groove 13 to fix the water-sealing jacket 1 to the water pipe from the outside.
[0025] The upper center of the water-sealing jacket 1 is provided with a threaded hole 12. The inner core 2 is threadedly connected to the threaded hole 12 and coated with sealant. The top of the inner core 2 is provided with a connecting flange 11, which is bonded to the top of the water-sealing jacket to improve the connection strength of the inner core 2 and prevent it from falling off.
[0026] Among them, a trapezoidal ring 16 is welded to the bottom of the locking water pipe 3. The trapezoidal ring 16 is always in contact with the sealing cone hole 8, and the sliding of the trapezoidal ring 16 and the side of the sealing cone hole 8 is smoother, preventing the top of the locking water pipe 3 from getting stuck and damaging the sealing cone hole 8.
[0027] The sealing end cap 4 has a sealing gasket 10 on its inner top side. The center of the sealing gasket 10 has a boss that slides and connects with the locking water pipe 3, thereby improving the sealing performance of the sealing end cap 4 and preventing leakage.
[0028] The working principle of this utility model is as follows: The waterproof jacket is inserted into the pipe opening to be sealed, so that the top of the pipe is flush with the bottom of the waterproof jacket 1, and the sealing ring 7 is flush with the inner wall of the pipe to prevent leakage. During this process, the waterproof jacket slides into the water pipe, and the sealing groove 6 on the waterproof jacket contracts under elastic action, increasing the friction between the waterproof jacket and the inner wall of the water pipe and improving the connection strength. A metal cable tie 5 is installed in the locking groove 13 on the outside of the connecting sleeve 15. Tightening the metal cable tie 5 makes the connecting sleeve 15 fit tightly against the outer wall of the pipe and fix it, increasing the connection strength of the waterproof jacket 1. Next, use a wrench to turn the locking nut 9 on the locking water pipe 3, causing the locking water pipe 3 and the inner core 2 to rotate relative to each other, so that the locking water pipe 3 moves towards the top of the sealing jacket 1. The trapezoidal ring 16 at the top of the locking water pipe 3 is always in contact with the inner wall of the sealing cone hole 8, squeezing the top of the sealing jacket 1 to make it fit tightly against the inner wall of the pipe, increasing the fixing pressure, improving the friction between the sealing jacket 1 and the inner wall of the pipe, resisting greater water pressure, with a wide range of applications, good sealing performance, and preventing leakage. When an external pipe is required, remove the sealing end cap 4 and connect the external pipe to the locking water pipe 3. It is convenient to use.
[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 rubber water sealing plug structure assembly, comprising a water sealing outer sleeve (1), an inner core (2) and a locking water pipe (3), characterized in that: The water-sealing jacket (1) is a cylindrical structure made of rubber. The bottom outer side of the water-sealing jacket (1) is provided with three rows of triangular sealing grooves (6). The upper half of the center of the water-sealing jacket (1) is provided with a metal cylindrical inner core (2). The lower half of the center of the water-sealing jacket (1) is provided with a sealing cone hole (8). The inner side of the inner core (2) is connected to a locking water pipe (3) by a thread. The outer side of the locking water pipe (3) is fully provided with external threads. A locking nut (9) is welded to the upper part of the locking water pipe (3). The top of the locking water pipe (3) is connected to a sealing end cap (4) by a thread. The outer side of the sealing end cap (4) is provided with anti-slip texture (17).
2. A rubber water sealing plug assembly according to claim 1, wherein: A sealing ring mounting groove (14) is provided at the top of the outer side of the water-sealing jacket (1), and a rubber sealing ring (7) is provided in the sealing ring mounting groove (14).
3. The rubber water seal structure assembly of claim 1, wherein: The top of the water-sealing jacket (1) is provided with an annular connecting sleeve (15), and the outer middle of the connecting sleeve (15) is provided with an external locking groove (13), and a metal cable tie (5) is provided in the external locking groove (13).
4. The rubber water seal structure assembly of claim 1, wherein: The upper center of the water-sealing jacket (1) is provided with a threaded hole (12). The inner core (2) is threadedly connected to the threaded hole (12) and coated with sealant. The top of the inner core (2) is provided with a connecting flange (11), which is bonded to the top of the water-sealing jacket.
5. The rubber water seal structure assembly of claim 1, wherein: The bottom of the locking water pipe (3) is welded with a trapezoidal ring (16), which is always in contact with the sealing cone hole (8).
6. The rubber water seal structure assembly of claim 1, wherein: A sealing gasket (10) is provided on the top inner side of the sealing end cap (4), and a boss is provided in the center of the sealing gasket (10) to slide and connect with the locking water pipe (3).