Urban water supply pipe leakage repairing structure
By using a combination of sleeve, sealing ring and filling layer at the repair site of urban water supply pipeline, the problem of secondary damage caused by settlement at the repair site is solved, and the repair connection is made firm and airtight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-04-03
AI Technical Summary
Urban water supply pipe repair sites are prone to secondary damage due to settlement, resulting in unstable connections.
The system employs a combination structure of sleeve, sealing ring, sealing sleeve, fixing screw, and filler layer. Glue is applied to the surface of the water pipe, and the sleeve and sealing sleeve are fitted on top. The fixing screw and nut are used for connection, and the filler layer is used to enhance the connection's strength.
It effectively prevents secondary damage to the repair site caused by settlement, and ensures the firmness and sealing of the repair connection.
Smart Images

Figure CN224079799U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of urban water supply pipe technology, and in particular relates to a structure for repairing leaks in urban water supply pipes. Background Technology
[0002] Urban water supply pipelines are an important part of urban infrastructure, responsible for transporting and distributing water from sources to users. When water supply pipelines rupture, timely repair is crucial to avoid water waste and further damage. Urban water supply pipeline repair mainly includes steps such as: shutting off valves, cutting off the ruptured pipe, connecting sleeves, reinforcing and sealing, and backfilling and compacting. Quick maintenance of water supply pipelines is related to urban water supply security and residents' quality of life.
[0003] When a city water supply pipe bursts, the pipe needs to be cut off, and then a straight connector needs to be fitted onto the surface of the two pipe sections. Glue is then applied to the port and the inner wall of the straight connector. After the glue cures, the repair is complete. However, the pipe repair site may suffer secondary damage due to settlement. Therefore, a city water supply pipe leakage repair structure is needed. This structure can protect the water supply pipe repair site, preventing secondary damage due to settlement and ensuring the firmness of the connection. Utility Model Content
[0004] The purpose of this utility model is to provide a repair structure for leaking urban water supply pipes. This structure can protect the repaired area of the water supply pipe, preventing secondary damage due to settlement and ensuring the firmness of the connection at the repaired area, thereby solving the aforementioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A repair structure for leaking urban water supply pipes includes two water supply pipes installed in the inner cavity of the soil foundation. A sleeve is fitted over the surface of the two water supply pipes. Sealant I is applied to both sides of the sleeve. A sealing ring is fitted over the surface of the water supply pipes, and the sealing ring is in contact with the sealant I. A sealing sleeve is fitted over the surface of both water supply pipes. The sealant I and the sealing ring are located inside the sealing sleeve. The sealing sleeve is threaded to the sleeve. Sealant II is applied to the opposite side of each of the two sealing sleeves. A limiting ring is fixedly connected to the surface of the sealing sleeve. A flange ring is fitted over the surface of the sealing sleeve. A fixing screw is threaded through the surface of the flange ring. Two fixing screws pass through two symmetrical flange rings and are threaded to a fixing nut. The top and bottom of the water supply pipes and sleeves are filled with a pipe-filling layer. A base filling layer is backfilled above the water supply pipes and sleeves.
[0006] Preferably, a sealing ring is fitted on the surface of the second sealant, and two symmetrical steel hoops are fitted on the surface of the sealing ring, one of which is located on the surface of the water pipe and the other is located on the surface of the sealing sleeve.
[0007] Preferably, the cross-section of the sealing ring near the sealant is an inclined surface, and the inner cavity of the sealing sleeve is in contact with the surfaces of the water pipe and the sleeve, respectively.
[0008] Preferably, the limiting ring is fitted with the flange ring, the fixing nut is a hexagonal nut, and the tube filling layer is a medium-coarse sand filling layer.
[0009] Preferably, the base filling layer is a layer of original soil with gravel removed, the top of the base filling layer is raised, and the inner cavity of the sealing ring fits into the water pipe and the sealing sleeve.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model involves applying glue to the surface of the water supply pipe, fitting a sleeve over the surface of two water supply pipes, and then fitting two sealing sleeves over the sleeve and the two water supply pipes. The fixing screw passes through the flange ring and is threaded to the fixing nut. A pipe-covering filling layer is filled around the water supply pipe and the sleeve, and a base filling layer is filled on top of the pipe-covering filling layer. This achieves the protection of the water supply pipe repair area through the protective structure, preventing secondary damage to the water supply pipe repair area due to settlement and ensuring the firmness of the connection at the water supply pipe repair area.
[0012] 2. This utility model uses the combination of sealing collar and steel hoops. After the sealing sleeve is fixedly connected to the surface of the water pipe, the sealing collar is placed on the surface of the second sealant. Then, two symmetrical steel hoops are placed on the surface of the sealing collar and tightened. This ensures that the sealing collar is tightly fitted to the water pipe and the sealing sleeve, preventing the second sealant from being exposed for a long time and falling off, thus ensuring the sealing performance of the connection between the water pipe and the sealing sleeve. Attached Figure Description
[0013] in:
[0014] Figure 1 This is a front cross-sectional view of one embodiment of the present invention;
[0015] Figure 2 This is a front view schematic diagram of a reinforcement structure according to an embodiment of the present invention;
[0016] Figure 3 This is a front cross-sectional view of a reinforcement structure according to an embodiment of the present invention;
[0017] Figure 4 This is one embodiment of the present utility model. Figure 3 A magnified view of point A in the middle.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] 1. Soil base, 2. Water pipe, 3. Sleeve, 4. Sealant I, 5. Sealing ring, 6. Sealing sleeve, 7. Sealant II, 8. Limiting ring, 9. Flange ring, 10. Fixing bolt, 11. Fixing nut, 12. Pipe filling layer, 13. Base surface filling layer, 14. Sealing sleeve, 15. Steel hoop. Detailed Implementation
[0020] In the following description, embodiments of the urban water supply pipe leakage repair structure of this utility model will be described with reference to the accompanying drawings. Example 1
[0021] Figure 1-4 This invention illustrates a city water supply pipe leakage repair structure according to an embodiment of the present invention. It includes two water pipes 2 disposed within the cavity of a soil foundation 1. Sleeves 3 are fitted over the surfaces of the two water pipes 2. Sealant 4 is applied to both sides of each sleeve 3. Sealing rings 5 are fitted over the surfaces of the water pipes 2. The cross-section of the sealing ring 5 near the sealant 4 is inclined. The inner cavity of a sealing sleeve 6 is in contact with the surfaces of the water pipes 2 and the sleeves 3, respectively. The sealing ring 5 is in contact with the sealant 4. Sealing sleeves 6 are fitted over the surfaces of both water pipes 2. The sealant 4 and the sealing ring 5 are located within the inner cavity of the sealing sleeve 6. The sealing sleeve 6 is threadedly connected to the sleeves 3. Sealant 7 is applied to the opposite sides of each of the two sealing sleeves 6. A sealing ring 14 is fitted over the surface of the sealing ring 7. Two symmetrical steel hoops 15 are fitted over the surface of the sealing ring 14. One steel hoop 15 is located on the surface of the water pipe 2, and the other steel hoop 15 is located on the opposite side. 5 is located on the surface of the sealing sleeve 6. Through the cooperation of the sealing ring 14 and the steel hoop 15, after the sealing sleeve 6 is fixedly connected to the surface of the water pipe 2, the sealing ring 14 is placed on the surface of the sealant 7, and then two symmetrical steel hoops 15 are placed on the surface of the sealing ring 14. The steel hoops 15 are tightened to make the sealing ring 14 fit tightly with the water pipe 2 and the sealing sleeve 6, so as to prevent the sealant 7 from falling off due to long-term exposure, and to ensure the sealing performance of the connection between the water pipe 2 and the sealing sleeve 6. The surface of the sealing sleeve 6 is fixedly connected with the limit ring 8, and the surface of the sealing sleeve 6 is fitted with the flange ring 9. The surface of the flange ring 9 is provided with the fixing screw 10. The two fixing screws 10 pass through the two symmetrical flange rings 9 and are threadedly connected with the fixing nuts 11. The top and bottom of the water pipe 2 and the sleeve 3 are filled with the pipe filling layer 12, and the top of the water pipe 2 and the sleeve 3 is backfilled with the base filling layer 13. Example 2
[0022] Figure 1-4This invention illustrates a city water supply pipe leakage repair structure according to an embodiment of the present invention. It includes two water supply pipes 2 disposed within the cavity of a soil foundation 1. Sleeves 3 are fitted over the surfaces of the two water supply pipes 2. Sealant 4 is applied to both sides of each sleeve 3. Sealing rings 5 are fitted over the surfaces of the water supply pipes 2, adhering to the sealant 4. Sealing sleeves 6 are fitted over the surfaces of both water supply pipes 2. The sealant 4 and sealing rings 5 are located within the cavity of the sealing sleeves 6. The sealing sleeves 6 are threadedly connected to the sleeves 3. Sealant 7 is applied to the opposite sides of each of the two sealing sleeves 6. A limiting ring 8 is fixedly connected to the surface of the sealing sleeve 6. The limiting ring 8 is connected to a flange ring 9. The sealing sleeve 6 is fitted with a hexagonal nut 11, a medium-coarse sand filling layer 12, a flange ring 9 on the surface of the sealing sleeve 6, a fixing screw 10 through the surface of the flange ring 9, two fixing screws 10 through two symmetrical flange rings 9 and threaded to the fixing nut 11, the top and bottom of the water pipe 2 and the sleeve 3 are filled with the filling layer 12, the top of the water pipe 2 and the sleeve 3 is backfilled with a base filling layer 13, the base filling layer 13 is the original soil filling layer after removing gravel, the top of the base filling layer 13 is raised, and the inner cavity of the sealing sleeve 14 fits with the water pipe 2 and the sealing sleeve 6.
[0023] Working principle: When using this utility model, the user applies glue to the surface of two water supply pipes 2, puts the sleeve 3 on the surface of the two water supply pipes 2, and then puts two symmetrical sealing sleeves 6 on the surface of the two symmetrical water supply pipes 2. Turn the sealing sleeve 6 so that the sealing sleeve 6 is threadedly connected to the sleeve 3. After the glue is fixed, the two symmetrical fixing screws 10 pass through the two symmetrical flange rings 9 and are threadedly connected to the fixing nuts 11. After the water supply pipes 2 and sealing sleeves 6 are fixed, the water supply pipes 2, sleeves 3 and sealing sleeves 6 are filled with a pipe-encasing filling layer 12, and then a base filling layer 13 is filled on top of the pipe-encasing filling layer 12 to complete the repair of the water supply pipes 2. This avoids secondary damage to the water supply pipe repair site due to settlement and ensures the firmness of the connection at the water supply pipe repair site.
[0024] In summary, this urban water supply pipe leakage repair structure involves applying adhesive to the surface of the water pipe 2, fitting the sleeve 3 onto the surface of the two water pipes 2, then fitting two sealing sleeves 6 onto the surface of the sleeve 3 and the two water pipes 2, allowing the fixing screw 10 to pass through the flange ring 9 and be threadedly connected to the fixing nut 11, filling the area around the water pipe 2 and the sleeve 3 with a pipe-covering filling layer 12, and then filling the top of the pipe-covering filling layer 12 with a base filling layer 13. This protective structure can protect the water supply pipe repair area, preventing secondary damage due to settlement and ensuring the firmness of the connection at the water supply pipe repair area.
Claims
1. A structure for repairing leaks in urban water supply pipes, characterized in that, The system includes two water pipes (2) installed inside the soil foundation (1). Each water pipe (2) has a sleeve (3) fitted over its surface. Both sides of the sleeve (3) are provided with sealant (4). A sealing ring (5) is fitted over the surface of each water pipe (2), and the sealing ring (5) is in contact with the sealant (4). Each of the two water pipes (2) has a sealing sleeve (6). The sealant (4) and the sealing ring (5) are located inside the sealing sleeve (6). The sealing sleeve (6) is threadedly connected to the sleeve (3). The two sealing sleeves (6) are... Sealing compound 2 (7) is provided on one side of the back. A limiting ring (8) is fixedly connected to the surface of the sealing sleeve (6). A flange ring (9) is fitted on the surface of the sealing sleeve (6). A fixing screw (10) is provided through the surface of the flange ring (9). Two fixing screws (10) pass through two symmetrical flange rings (9) and are threadedly connected to fixing nuts (11). The top and bottom of the water pipe (2) and the sleeve (3) are filled with a pipe filling layer (12). A base filling layer (13) is backfilled on the top of the water pipe (2) and the sleeve (3).
2. The urban water supply pipe leakage repair structure according to claim 1, characterized in that, The surface of the sealant 2 (7) is fitted with a sealing ring (14), and the surface of the sealing ring (14) is fitted with two symmetrical steel hoops (15), one of which is located on the surface of the water pipe (2), and the other is located on the surface of the sealing sleeve (6).
3. The urban water supply pipe leakage repair structure according to claim 2, characterized in that, The cross section of the sealing ring (5) near the sealant (4) is inclined, and the inner cavity of the sealing sleeve (6) is in contact with the surfaces of the water pipe (2) and the sleeve (3).
4. The urban water supply pipe leakage repair structure according to claim 3, characterized in that, The limiting ring (8) is attached to the flange ring (9), the fixing nut (11) is a hexagonal nut, and the tube filling layer (12) is a medium-coarse sand filling layer.
5. The urban water supply pipe leakage repair structure according to claim 4, characterized in that, The base filling layer (13) is the original soil filling layer after removing gravel. The top of the base filling layer (13) is in a raised state. The inner cavity of the sealing sleeve (14) is in contact with the water pipe (2) and the sealing sleeve (6).