A fabricated precast component connection mechanism
By using rubber rings and thermoplastic rings in the prefabricated component connection mechanism in conjunction with hot air treatment, the leakage problem at the pipe connection point is solved, achieving a long-term stable sealing effect and extending the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG XUJIANG CONSTR TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, leaks are prone to occur at the joints of prefabricated pipe components in harsh environments, and simple sealing methods are difficult to maintain a sealing effect for a long time.
An assembled prefabricated component connection mechanism is adopted, including a connecting cylinder, a rubber ring, and a thermoplastic ring. By introducing hot gas into the annular groove, the rubber ring softens and the thermoplastic ring contracts, achieving a tight fit. Combined with gas pressure, it provides a long-term stable seal.
It improves the sealing performance and service life of pipe connections, ensuring a long-term stable sealing effect and preventing leakage.
Smart Images

Figure CN224433679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a prefabricated assembly connection mechanism. Background Technology
[0002] Existing pipe prefabrication technology generally involves prefabricating standard pipes and then connecting a certain number of pipes according to actual needs using connectors. These connectors typically use simple flanges and rings for connection, followed by simple sealing with cement or other methods at the joints. However, after long-term use, leaks often occur at the joints, especially in harsh environments where the seals may even fail. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an assembly-type prefabricated component connection mechanism.
[0004] The technical solution adopted by this utility model to solve its technical problem is: an assembled prefabricated component connection mechanism, including a connecting cylinder, the connecting cylinder being a hollow cylinder, an annular groove being provided in the middle of the inner wall of the connecting cylinder, and a sealing mechanism being provided in the annular groove;
[0005] The sealing mechanism includes a rubber ring and a thermoplastic ring. The rubber ring is located at the opening of the annular groove, and the rubber ring and the inside of the annular groove form an annular sealed cavity. The rubber ring is coaxially arranged with the connecting cylinder, and the inner wall of the rubber ring is wavy.
[0006] The thermoplastic ring is located in the annular groove, between the rubber ring and the bottom of the annular groove, the thermoplastic ring is sleeved on the rubber ring, the thermoplastic ring and the rubber ring are coaxially arranged, and the side wall of the thermoplastic ring is provided with several through holes.
[0007] An air valve is provided on the wall of the connecting cylinder. One end of the air valve is connected to the inside of the annular groove, and the other end of the air valve is located on the side wall of the connecting cylinder.
[0008] The outer wall of the rubber ring is provided with several aluminum sheets.
[0009] Preferably, the aluminum sheets of the rubber ring are arranged in an alternating pattern.
[0010] Preferably, the aluminum sheet is strip-shaped and has a limiting hole, and the outer wall of the rubber ring has a limiting post, which is located inside the limiting hole.
[0011] The beneficial effects of this utility model are that the prefabricated assembly connection mechanism, by introducing hot air into the annular groove, not only softens the rubber, but also causes the thermoplastic ring to shrink, so that the rubber ring can better and more closely seal the connection between the two pipes, maintain a long-term stable seal, extend service life, and ensure sealing effect. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a structural schematic diagram of the prefabricated component connection mechanism of this utility model.
[0014] Figure 2 This is a schematic diagram of the thermoplastic ring of the prefabricated component connection mechanism of this utility model.
[0015] Figure 3 This is a schematic diagram of the rubber ring structure of the prefabricated component connection mechanism of this utility model.
[0016] In the diagram: 1. Connecting cylinder, 2. Rubber ring, 3. Thermoplastic ring, 4. Air valve, 5. Aluminum sheet, 6. Limiting post. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0018] like Figure 1-3 As shown, a prefabricated assembly connection mechanism includes a connecting cylinder 1, which is a hollow cylinder. An annular groove is provided in the middle of the inner wall of the connecting cylinder 1, and a sealing mechanism is provided in the annular groove.
[0019] The sealing mechanism includes a rubber ring 2 and a thermoplastic ring 3. The rubber ring 2 is located at the opening of the annular groove. The rubber ring 2 and the inside of the annular groove form an annular sealed cavity. The rubber ring 2 is coaxially arranged with the connecting cylinder 1. The inner wall of the rubber ring 2 is wavy.
[0020] The thermoplastic ring 3 is located in the annular groove. The thermoplastic ring 3 is located between the rubber ring 2 and the bottom of the annular groove. The thermoplastic ring 3 is sleeved on the rubber ring 2. The thermoplastic ring 3 and the rubber ring 2 are coaxially arranged. The side wall of the thermoplastic ring 3 is provided with several through holes.
[0021] The connecting cylinder 1 is provided with an air valve 4 on its cylinder wall. One end of the air valve 4 is connected to the inside of the annular groove, and the other end of the air valve 4 is located on the side wall of the connecting cylinder 1.
[0022] The outer wall of the rubber ring 2 is provided with several aluminum sheets 5.
[0023] Preferably, the aluminum sheets 5 of the rubber ring 2 are arranged in an alternating manner.
[0024] Preferably, the aluminum sheet 5 is strip-shaped and has a limiting hole, and the outer wall of the rubber ring 2 is provided with a limiting post 6, which is located inside the limiting hole.
[0025] During assembly, the ends of the two prefabricated tubes are inserted into the connecting cylinder 1, so that the ends of the two prefabricated tubes are located in the middle of the connecting cylinder 1 and abut against each other. Then, hot air is introduced through the air valve 4. The hot air passes through the through hole on the thermoplastic ring 3 and comes into contact with the rubber ring 2, causing the rubber ring 2 to soften. At the same time, the thermoplastic ring 3 shrinks due to heat and covers the outer wall of the rubber ring 2, becoming tighter and tighter. This makes the rubber ring 2 fit tightly against the connection of the two prefabricated tubes, achieving a sealed connection. Furthermore, the inner wall of the rubber ring 2 is corrugated, which can better improve the sealing performance. The staggered aluminum plates 5 on the rubber ring 2 improve the strength of the rubber ring 2 and enhance the rigidity of the external seal. In addition, after the gas is filled into the annular groove, the gas pressure in the sealed annular groove can also achieve external pressure on the rubber ring 2, providing long-term stable pressure and ensuring that the rubber ring 2 maintains a long-term stable sealing effect.
[0026] Compared with existing technologies, this prefabricated assembly connection mechanism softens the rubber and shrinks the thermoplastic ring 3 by introducing hot air into the annular groove. This allows the rubber ring 2 to better and more closely seal the connection between the two pipes, maintain a stable seal over a long period, extend service life, and ensure sealing performance.
[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A fabricated precast element connection mechanism, characterized by, Includes a connecting cylinder, which is a hollow cylinder, and has an annular groove in the middle of its inner wall, with a sealing mechanism inside the annular groove; The sealing mechanism includes a rubber ring and a thermoplastic ring. The rubber ring is located at the opening of the annular groove, and the rubber ring and the inside of the annular groove form an annular sealed cavity. The rubber ring is coaxially arranged with the connecting cylinder, and the inner wall of the rubber ring is wavy. The thermoplastic ring is located in the annular groove, between the rubber ring and the bottom of the annular groove, the thermoplastic ring is sleeved on the rubber ring, the thermoplastic ring and the rubber ring are coaxially arranged, and the side wall of the thermoplastic ring is provided with several through holes. An air valve is provided on the wall of the connecting cylinder. One end of the air valve is connected to the inside of the annular groove, and the other end of the air valve is located on the side wall of the connecting cylinder. The outer wall of the rubber ring is provided with several aluminum sheets.
2. The fabricated precast element connection of claim 1, wherein, The aluminum sheets of the rubber ring are arranged in an alternating pattern.
3. The fabricated precast connection of claim 1, wherein, The aluminum sheet is strip-shaped and has a limiting hole. The outer wall of the rubber ring has a limiting post, which is located inside the limiting hole.