A municipal water supply and drainage leak-proof installation structure
By using connection components at the connection points of municipal water supply and drainage pipes, including connection rings, inner support sleeves, and outer cover plates, combined with sealing rings and rubber blocks, the problems of leakage and contamination at pipe connections are solved, achieving higher sealing performance and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUBWAY ENG CO LTD OF CHINA RAILWAY 16TH CONSTR BUREAU
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-26
AI Technical Summary
Existing municipal water supply and drainage pipes are prone to leakage at their connections, and are easily contaminated by dust and rainwater due to long-term exposure to the external environment, affecting water quality.
The connecting components include a connecting ring, an inner support sleeve, and an outer cover plate, which, together with a sealing ring and a rubber ring block, form a multi-layer sealing and support structure, enhancing connection stability and preventing dust and rainwater from seeping in.
It improves the sealing and stability of pipe connections, reduces the probability of leakage and contamination, and enhances the protective effect.
Smart Images

Figure CN224414567U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline installation technology, specifically a leak-proof installation structure for municipal water supply and drainage. Background Technology
[0002] Municipal water supply and drainage pipelines generally refer to urban water supply and drainage systems. Water supply means drawing natural water, purifying it into tap water that meets the standards for production and domestic use, and then delivering the tap water to households through the urban water network. Drainage means discharging sewage and wastewater that has been used for production and domestic purposes after centralized treatment. Water supply and drainage require the use of appropriate water supply and drainage pipelines, and it is necessary to ensure that the pipelines do not leak.
[0003] Chinese patent provides a pipe leak prevention installation device, publication number CN215596640U, which includes a first pipe, a second pipe at one end of the first pipe, a first ring fixedly sleeved on the outer side of one end of the first pipe, and a second ring fixedly sleeved on the outer side of one end of the second pipe.
[0004] The above-mentioned device uses the connection and cooperation of the first screw and the first nut to squeeze and fix the first ring and the second ring, thereby making the first pipe and the second pipe stably connected and not easy to loosen. With the cooperation of the sealing ring, the first ring and the second ring are sealed to prevent water from leaking out from the connection between the first pipe and the second pipe.
[0005] However, its structure is relatively simple, using flanges and bolts for connection. The connection is directly exposed to the outside, and it is easy to bend when subjected to external force, which may cause gaps and leaks. In addition, the connection of the pipe lacks protective measures. When the pipe is laid outdoors for a long time, dust and rainwater can easily seep into the pipe from the gaps, which can easily lead to the contamination of the water transported during the period. Utility Model Content
[0006] The purpose of this utility model is to provide a leak-proof installation structure for municipal water supply and drainage, which can effectively solve the problems in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A municipal water supply and drainage leak-proof installation structure includes a connecting component installed at the connection of water supply and drainage pipe one and water supply and drainage pipe two. The connecting component has a connecting ring, an inner support sleeve, and an outer cover plate. The inner support sleeve is fixedly installed on the inner ring of the connecting ring, and the outer cover plate is fixedly installed on the outer ring of the connecting ring.
[0009] Sealing flanges are provided on the opposite surfaces of the first and second water supply and drainage pipes. The two sides of the connecting ring are fitted with the opposite surfaces of the two sealing flanges, and the connecting ring is connected to the sealing flanges of the first and second water supply and drainage pipes by connecting bolts. Sealing grooves are provided on both sides of the outer ring of the inner support sleeve. Sealing rubber rings are fitted inside the sealing grooves. The outer ring of the inner support sleeve is fitted with the inner walls of the first and second water supply and drainage pipes.
[0010] Preferably, an anti-detachment retaining ring is fixedly connected to the center of the outer ring of the outer cover plate, and rubber ring block one and rubber ring block two are installed on the top surface of the outer cover plate near both sides by fixing bolts.
[0011] Preferably, the opposite surfaces of the first rubber ring block and the second rubber ring block are provided with grooves that are compatible with the anti-detachment retaining ring, and the anti-detachment retaining ring is located in the grooves.
[0012] Preferably, the rubber ring block one and rubber ring block two are arranged in a circular shape, and the inner rings of rubber ring block one and rubber ring block two are tightly fitted with the outer ring of the outer cover plate.
[0013] Preferably, the inner ring of the outer cover plate fits against the outer ring of the sealing flanges of water supply and drainage pipe one and water supply and drainage pipe two, and the length of the outer cover plate is consistent with the combined length of the connecting ring and the two sealing flanges.
[0014] Preferably, the first rubber ring and the second rubber ring are detachably connected to the outer cover plate by fixing bolts, and the connecting ring is detachably connected to the first water supply pipe and the second water supply pipe by connecting bolts.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model, by setting up connecting components, allows for the installation of multiple concave-convex mating structures at the connection point of water supply and drainage pipe one and water supply and drainage pipe two during pipe installation. This improves sealing performance and prevents water from flowing directly out of the connection gap. At the same time, the outer cover plate covering the connection point of water supply and drainage pipe one, water supply and drainage pipe two, and connecting ring reduces the probability of dust and rainwater impurities seeping in, thus improving the protective effect.
[0017] The rubber ring block 1, rubber ring block 2, outer cover plate, and inner support sleeve work together to support the connection between water supply and drainage pipe 1 and water supply and drainage pipe 2 from the inside through the inner support sleeve. The rubber ring block 1 and rubber ring block 2 are fitted onto the outer cover plate to isolate and protect the connection. Moreover, the rubber ring block 1 and rubber ring block 2 are flexible, which will reduce the impact force when subjected to collision, reduce the probability of water supply and drainage pipe 1 and water supply and drainage pipe 2 tilting after impact, and facilitate the improvement of connection stability. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a municipal water supply and drainage leak-proof installation structure according to an embodiment of this utility model;
[0019] Figure 2 This is an exploded view of the overall structure of the water supply and drainage pipe 1, the rubber ring block 1, and the outer cover plate in this embodiment of the utility model.
[0020] Figure 3 This is a cross-sectional view of the connection between the inner support sleeve, water supply and drainage pipe one, and water supply and drainage pipe two in an embodiment of this utility model.
[0021] In the diagram: 1. Water supply and drainage pipe one; 2. Water supply and drainage pipe two; 3. Connecting assembly; 4. Connecting ring; 5. Inner support sleeve; 6. Outer cover plate; 7. Sealing groove; 8. Sealing ring; 9. Connecting bolt; 10. Anti-detachment clasp; 11. Rubber ring block one; 12. Rubber ring block two; 13. Fixing bolt. Detailed Implementation
[0022] 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.
[0023] Example 1
[0024] Combination Figures 1-3 A municipal water supply and drainage leak-proof installation structure includes a connecting component 3 installed at the connection of water supply and drainage pipe 1 and water supply and drainage pipe 2. The connecting component 3 has a connecting ring 4, an inner support sleeve 5, and an outer cover plate 6. The inner support sleeve 5 is fixedly installed on the inner ring of the connecting ring 4, and the outer cover plate 6 is fixedly installed on the outer ring of the connecting ring 4.
[0025] See Figure 2 and Figure 3 Furthermore, it is found that sealing flanges are provided on the opposite surfaces of water supply and drainage pipe 1 and water supply and drainage pipe 2. The two sides of the connecting ring 4 are fitted with the opposite surfaces of the two sealing flanges, and the connecting ring 4 is connected to the sealing flanges of water supply and drainage pipe 1 and water supply and drainage pipe 2 through connecting bolts 9. Sealing grooves 7 are provided on both sides of the outer ring of the inner support sleeve 5. Sealing rubber rings 8 are fitted inside the sealing grooves 7. The outer ring of the inner support sleeve 5 is fitted with the inner wall of water supply and drainage pipe 1 and water supply and drainage pipe 2. The inner ring of the outer cover plate 6 is fitted with the outer ring of the sealing flanges of water supply and drainage pipe 1 and water supply and drainage pipe 2. The length of the outer cover plate 6 is consistent with the combined length of the connecting ring 4 and the two sealing flanges.
[0026] Specifically, before pipe installation, the connecting ring 4 can be placed between the two fixed flanges of water supply and drainage pipe 1 and water supply and drainage pipe 2. After aligning the threaded holes, water supply and drainage pipe 1, connecting ring 4, and water supply and drainage pipe 2 can be fixed by tightening the connecting bolts 9. After fixing, the connecting ring 4, water supply and drainage pipe 2, and water supply and drainage pipe 1 fit together. At the same time, the outer wall of the inner support sleeve 5 is tightly attached to the inner wall of water supply and drainage pipe 1 and water supply and drainage pipe 2. A sealing ring 8 is provided at the connection, thus forming a structure with multiple concave and convex fits to improve sealing. At the same time, an outer cover plate 6 is provided on the connecting ring 4. The inner support sleeve 5 can internally support the connection between water supply and drainage pipe 1 and water supply and drainage pipe 2. The outer cover plate 6 cooperates with the connecting ring 4 to limit the range of motion at the connection between water supply and drainage pipe 1 and water supply and drainage pipe 2, so as to improve the connection stability, reduce the probability of deformation and skewing caused by impact, and improve the safety of use.
[0027] Example 2
[0028] See Figure 2 Furthermore, based on Embodiment 1, the outer cover plate 6 is further provided with an anti-detachment retaining ring 10 fixedly connected at the center of its outer ring. Rubber ring block 11 and rubber ring block 2 12 are installed on the top surface of the outer cover plate 6 near both sides by fixing bolts 13. The opposite surfaces of rubber ring block 11 and rubber ring block 2 12 are provided with slots that are compatible with the anti-detachment retaining ring 10, and the anti-detachment retaining ring 10 is located in the slots. Rubber ring block 11 and rubber ring block 2 12 are arranged in a circular shape, and the inner rings of rubber ring block 11 and rubber ring block 2 12 are tightly fitted with the outer ring of the outer cover plate 6. Rubber ring block 11 and rubber ring block 2 12 are detachably connected to the outer cover plate 6 by fixing bolts 13. The connecting ring 4 is detachably connected to water supply and drainage pipe 1 and water supply and drainage pipe 2 by connecting bolts 9.
[0029] Specifically, after the connecting ring 4, water supply and drainage pipe 1, and water supply and drainage pipe 2 are connected, the outer cover plate 6 covers the connection point to block the gap. Accumulated dust and moisture need to seep in from both sides of the outer cover plate 6 before entering the connection point of water supply and drainage pipe 1, connecting ring 4, and water supply and drainage pipe 2. Without prolonged immersion in water, the probability of dirt penetration can be effectively reduced. At the same time, the outer ring of the outer cover plate 6 is provided with rubber ring block 11 and rubber ring block 22. When the outer cover plate 6 is impacted, the timely and effective deformation of rubber ring block 11 and rubber ring block 22 can buffer minor impacts. When the impact force is large, even if rubber ring block 11 and rubber ring block 22 are broken or detached from the outer cover plate 6, the buffering force can be reduced, preventing the impact force from acting entirely on the outer cover plate 6. This can effectively reduce the probability of the connection point of connecting ring 4, water supply and drainage pipe 1, and water supply and drainage pipe 22 breaking, and the protection effect is good.
[0030] In actual operation, before pipe installation, the connecting ring 4 can be placed between the two fixed flanges of water supply and drainage pipe 1 and water supply and drainage pipe 2. After aligning the threaded holes, the water supply and drainage pipe 1, connecting ring 4, and water supply and drainage pipe 2 can be fixed by tightening the connecting bolt 9. After fixing, the connecting ring 4, water supply and drainage pipe 2, and water supply and drainage pipe 1 fit together, and the outer wall of the inner support sleeve 5 is tightly attached to the inner wall of water supply and drainage pipe 1 and water supply and drainage pipe 2.
[0031] Furthermore, the inner support sleeve 5 is equipped with sealing rings 8 in the outer sealing groove 7, which can form multiple concave and convex structures to improve the sealing performance. At the same time, the connecting ring 4 is equipped with an outer cover plate 6. The inner support sleeve 5 can internally support the connection between water supply and drainage pipe 1 and water supply and drainage pipe 2. The outer cover plate 6 cooperates with the connecting ring 4 to limit the range of motion of the connection between water supply and drainage pipe 1 and water supply and drainage pipe 2, so as to improve the connection stability, reduce the probability of deformation and skewing caused by impact, and improve the safety of use.
[0032] After the connecting ring 4, water supply and drainage pipe 1, and water supply and drainage pipe 2 are connected, the connection gap can be blocked by covering the connection with the outer cover plate 6. The accumulated dust and water need to seep in from both sides of the outer cover plate 6 before entering the connection of water supply and drainage pipe 1, connecting ring 4, and water supply and drainage pipe 2. Without being soaked in water for a long time, the probability of dirt penetration can be effectively reduced.
[0033] Meanwhile, the outer ring of the outer cover plate 6 is provided with rubber ring block 11 and rubber ring block 2 12. When the outer cover plate 6 is impacted, the rubber ring block 11 and rubber ring block 2 12 can effectively and timely deform to buffer the minor impact.
[0034] When the impact force is large, even if the rubber ring block 11 and the rubber ring block 22 are broken, the buffer force can be reduced, and the instantaneous impact force can be avoided to act entirely on the outer cover plate 6. This can effectively reduce the probability of the connection of the connecting ring 4, the water supply and drainage pipe 1, and the water supply and drainage pipe 2 being disconnected, and the protection effect is good.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A leakage-proof installation structure for a municipal water supply and sewerage, characterized by: It includes a connecting component (3) installed at the connection of water supply and drainage pipe one (1) and water supply and drainage pipe two (2). The connecting component (3) has a connecting ring (4), an inner support sleeve (5), and an outer cover plate (6). The inner support sleeve (5) is fixedly installed on the inner ring of the connecting ring (4), and the outer cover plate (6) is fixedly installed on the outer ring of the connecting ring (4). Sealing flanges are provided on the opposite sides of the first water supply and drainage pipe (1) and the second water supply and drainage pipe (2). The two sides of the connecting ring (4) are fitted with the opposite sides of the two sealing flanges. The connecting ring (4) is connected to the sealing flanges of the first water supply and drainage pipe (1) and the second water supply and drainage pipe (2) by connecting bolts (9). Sealing grooves (7) are provided on both sides of the outer ring of the inner support sleeve (5). Sealing rubber rings (8) are fitted inside the sealing grooves (7). The outer ring of the inner support sleeve (5) is fitted with the inner wall of the first water supply and drainage pipe (1) and the second water supply and drainage pipe (2).
2. The leakage-proof installation structure for municipal water supply and drainage according to claim 1, characterized in that: An anti-detachment clasp (10) is fixedly connected to the center of the outer ring of the outer cover plate (6). Rubber ring block one (11) and rubber ring block two (12) are installed on the top surface of the outer cover plate (6) near both sides by fixing bolts (13).
3. The leakage-proof installation structure for municipal water supply and drainage according to claim 2, characterized in that: The opposite surfaces of the first rubber ring block (11) and the second rubber ring block (12) are provided with grooves that are compatible with the anti-detachment shackle (10), and the anti-detachment shackle (10) is located in the groove.
4. The leakage-proof installation structure for municipal water supply and drainage according to claim 2, characterized in that: The rubber ring block one (11) and rubber ring block two (12) are arranged in a circular shape, and the inner rings of rubber ring block one (11) and rubber ring block two (12) are closely fitted with the outer ring of the outer cover plate (6).
5. The leakage-proof installation structure for municipal water supply and drainage according to claim 1, characterized in that: The inner ring of the outer cover plate (6) fits against the outer ring of the sealing flange of the first water supply and drainage pipe (1) and the second water supply and drainage pipe (2), and the length of the outer cover plate (6) is consistent with the combined length of the connecting ring (4) and the two sealing flanges.
6. The municipal water supply and drainage leak-proof installation structure according to claim 2, characterized in that: The first rubber ring (11) and the second rubber ring (12) are detachably connected to the outer cover plate (6) by fixing bolts (13), and the connecting ring (4) is detachably connected to the first water supply and drainage pipe (1) and the second water supply and drainage pipe (2) by connecting bolts (9).