A pipe interface structure for a municipal underground drainage network system

Abstract

The application relates to a pipe joint structure for a municipal underground drainage pipe network system, belonging to the technical field of drainage pipe networks, which comprises a socket part, a spigot part and a sealing ring, a first protrusion is arranged on the inner wall of the socket part, a second protrusion is arranged on the outer wall of the spigot part, the sealing ring is sleeved on the spigot part and contacts the second protrusions on both sides, the outer edge of the middle part of the sealing ring is provided with a recess, the top end of the first protrusion abuts on the recess, a plurality of layers of memory metal nets are inlaid in the sealing ring, the number of layers of the memory metal nets inlaid in the recess is less than that of the memory metal nets inlaid in other parts, and the application has the effects that the pipe joint of the underground drainage pipe network system can be automatically reset after angular deflection, and liquid leakage caused by pipe settlement can be avoided.

Description

Technical Field

[0001] This application relates to the technical field of drainage pipe networks, and in particular to a pipe interface structure for municipal underground drainage pipe network systems. Background Technology

[0002] Municipal drainage networks are vital underground lifelines for cities, and their safe and stable operation directly impacts urban flood control and drainage capabilities as well as public safety. Due to the complex urban underground environment, the foundation beneath these pipelines may experience uneven settlement due to soil consolidation, groundwater level fluctuations, disturbances from surrounding construction, or traffic loads. To address the issue of seal failure at joints caused by settlement, traditional rigid joints incorporate rubber sealing rings. While this can compensate for settlement deviations to some extent, rubber sealing rings have poor compensation capabilities for angular deflections, making them susceptible to failure in complex settlement scenarios. Utility Model Content

[0003] To address the problem that existing sealing rings cannot provide acute compensation for settlement caused by angular deflection at pipe joints, this application provides a pipe joint structure for municipal underground drainage pipe network systems.

[0004] This application provides a pipe interface structure for a municipal underground drainage network system, including a socket, a spigot, and a sealing ring. A first protrusion is provided on the inner wall of the socket, and a second protrusion is provided on the outer wall of the spigot. The sealing ring is fitted onto the spigot and contacts the second protrusion on both sides. The outer edge of the middle part of the sealing ring has a recess. The top of the first protrusion abuts against the recess. Multiple layers of shape memory metal mesh are embedded in the sealing ring. The number of layers of shape memory metal mesh embedded in the recess is less than the number of layers of shape memory metal mesh embedded in other parts.

[0005] By adopting the above technical solution and setting a sealing ring, the sealing performance between the socket and spigot is increased. Since the sealing ring has second protrusions on both sides, axial movement of the sealing ring can be prevented during the connection of the spigot and socket. Furthermore, a recess is provided on the outer edge of the sealing ring, and the first protrusion abuts against the recess. The number of layers of shape memory metal mesh embedded in the recess is less than the number of layers embedded in other parts. When pipeline settlement occurs, the deeper parts of the socket and spigot will have a greater restoring force due to the larger number of shape memory metal mesh layers, further reducing the settlement at the pipeline connection. When angular deflection occurs at the interface, the shape memory metal mesh not only reduces the amount of deflection (i.e., the angle of deflection) but also resets the deflection after the external force disappears or weakens.

[0006] Optionally, a sealing ring may be provided between any two adjacent second protrusions.

[0007] By adopting the above technical solution and this configuration, not only can the complexity and cost of the structure be reduced, but the resistance encountered in the pipe connection can also be reduced.

[0008] Optionally, the recess corresponds to one or more of the first protrusions.

[0009] By adopting the above technical solution, since the first protrusion abuts against the recess, the first protrusion can further reduce the axial movement of the sealing ring and improve the stability of the sealing ring during use.

[0010] This application provides another pipe interface structure for a municipal underground drainage network system, including a socket, a spigot, and a sealing ring. A first protrusion is provided on the inner wall of the socket, and a second protrusion is provided on the outer wall of the spigot. The sealing ring passes through the socket and contacts the first protrusion on both sides. The outer edge of the middle part of the sealing ring has a recess. The top of the second protrusion abuts against the recess. Multiple layers of shape memory metal mesh are embedded in the sealing ring. The number of layers of shape memory metal mesh embedded in the recess is less than the number of layers of shape memory metal mesh embedded in other parts.

[0011] Optionally, a sealing ring may be provided between any two adjacent first protrusions.

[0012] Optionally, the recess corresponds to one or more of the second protrusions.

[0013] Since the technical effects of the three points here are the same as those of the three points in the previous section, they will not be described again.

[0014] Optionally, the first protrusion and the second protrusion have the same structure.

[0015] By adopting the above technical solutions, not only can manufacturing costs be reduced, but design difficulty can also be reduced, making production easier.

[0016] Optionally, the cross-sections of the first protrusion and the second protrusion are semi-circular.

[0017] By adopting the above technical solution, the outer edges of the first and second protrusions are both semi-cylindrical, and the multiple first and second protrusions present streamlined corrugations, which helps to reduce resistance during pipe installation and avoid stress concentration when displacement occurs at the pipe interface, thereby increasing the service life of the pipe.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. Compared with traditional sealing rings, the sealing ring in this application has a memory metal mesh embedded in it, which gives it a stronger deformation compensation and recovery ability, can adapt to a larger settlement, and can still maintain reliable sealing after settlement occurs.

[0019] 2. The multiple first protrusions and multiple second protrusions present a streamlined corrugated pattern, which can reduce the interference of interface deformation on water flow on the one hand, and prevent sludge from accumulating at the interface on the other hand. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 provided in this application; Figure 2 yes Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the structure of Embodiment 2 provided in this application; Figure 4 yes Figure 3 A magnified view of part B in the middle section; Figure 5 This is a schematic diagram of the structure of the mating part between the insertion part and the second protrusion in Embodiment 1 provided in this application; Figure 6 This is a schematic diagram of the structure of the insertion part and the second protrusion mating part according to Embodiment 2 provided in this application; Figure 7 This is a partial structural schematic diagram of the sealing ring involved in Embodiment 1 of this application.

[0021] In the picture: 1. Socket; 2. Seal; 3. Sealing ring; 4. Memory metal mesh; 11. First protrusion; 21. Second protrusion; 31. Protrusion; 32. Depression. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0023] Example 1 Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown in the figure, this application discloses a pipe interface structure for a municipal underground drainage pipe network system. The pipe interface structure includes a socket portion 1, a spigot portion 2, and a sealing ring 3.

[0024] A first protrusion 11 is provided on the inner wall of the socket portion 1, and a second protrusion 21 is provided on the outer wall of the spigot portion 2. A sealing ring 3 is fitted onto the spigot portion 2, with both sides of the sealing ring 3 contacting the second protrusion 21. The outer edge of the middle part of the sealing ring 3 has a recess 32, and the corresponding outer edges at both ends form protrusions 31. After the socket portion 1 and the spigot portion 2 are joined, the protrusions 31 abut against the inner wall of the socket portion 1, and the first protrusion 11 abuts against the recess 32. This design achieves a seal at the pipe joint.

[0025] The sealing ring 3 is made of rubber, and the shape memory metal mesh 4 is embedded within it. The sealing ring 3 reduces settlement at the pipe connection, while the shape memory metal mesh 4 helps the pipe to return to its original position after settlement and to correct angular deflection at the pipe joint, thus ensuring a tight seal and minimizing maintenance. Because the shape memory metal mesh 4 has a strong self-healing ability, when deflection occurs at the pipe joint, the sealing ring 3 not only provides resistance but also deflects in the opposite direction when the external force disappears or weakens, restoring the pipe joint to its normal state.

[0026] Furthermore, the number of layers of memory metal mesh 4 embedded in the protrusion 31 is greater than the number of layers of memory metal mesh 4 embedded in the recess 32. When the pipe settles, there will be a greater displacement at the depth and opening of the socket 1, while the displacement in the middle of the socket 1 is smaller. Therefore, the number of layers of memory metal mesh 4 corresponding to the part with smaller displacement is less than the number of layers of memory metal mesh 4 corresponding to the part with larger displacement.

[0027] It should be noted that, for ease of manufacturing and to reduce production costs, the protrusions 31 and the recesses 32 are allowed to share the same shape memory metal mesh.

[0028] The shape memory metal involved in this application is also known as shape memory alloy, and the material is a common nickel-titanium alloy.

[0029] In a practical application, the first protrusion 11 and the second protrusion 21 have the same structure and are both annular with a semi-circular cross-section, which facilitates manufacturing and reduces costs. Furthermore, there are two of each of the first protrusion 11 and the second protrusion 21, and one sealing ring 3.

[0030] After a sealing ring 3 is provided between the socket portion 1 and the spigot portion 2, the first protrusion 11 contacts the recess 32 of the sealing ring 3, and the second protrusion 21 does not contact the inner wall of the socket portion 1.

[0031] Please refer to Figure 3 , Figure 4 and Figure 6This application discloses a pipe interface structure for a municipal underground drainage pipe network system. The pipe interface structure in this embodiment is similar to that in Embodiment 1, except that the recessed part 32 of the sealing ring 3 corresponds to the second protrusion 21 of the socket part 2, and the two sides of the sealing ring 3 correspond to the first protrusion 11.

[0032] Since the sealing ring in Embodiment 1 and the sealing ring in Embodiment 2 have similar structures, and can be fully reproduced by those skilled in the art in conjunction with other accompanying drawings, further details will not be provided.

[0033] Accordingly, the technical effects produced by this embodiment are the same as those produced by Embodiment 1, which can be fully understood by those skilled in the art, and therefore will not be described in detail.

[0034] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe interface structure for a municipal underground drainage network system, comprising a socket (1), a spigot (2), and a sealing ring (3), characterized in that: The inner wall of the socket (1) is provided with a first protrusion (11), and the outer wall of the insertion part (2) is provided with a second protrusion (21). The sealing ring (3) is sleeved on the insertion part (2) and both sides are in contact with the second protrusion (21). The outer edge of the middle part of the sealing ring (3) has a recess (32). The top of the first protrusion (11) abuts against the recess (32). The sealing ring (3) is embedded with multiple layers of memory metal mesh (4). The number of layers of memory metal mesh (4) embedded in the recess (32) is less than the number of layers of memory metal mesh (4) embedded in other parts.

2. The pipe interface structure for a municipal underground drainage network system according to claim 1, characterized in that: A sealing ring (3) is provided between any two adjacent second protrusions (21).

3. A pipe interface structure for a municipal underground drainage network system according to claim 2, characterized in that: The recess (32) corresponds to one or more of the first protrusions (11).

4. A pipe interface structure for a municipal underground drainage network system, comprising a socket (1), a spigot (2), and a sealing ring (3), characterized in that: The inner wall of the socket (1) is provided with a first protrusion (11), and the outer wall of the insertion part (2) is provided with a second protrusion (21). The sealing ring (3) passes through the socket (1) and contacts the first protrusion (11) on both sides. The outer edge of the middle part of the sealing ring (3) has a recess (32). The top of the second protrusion (21) abuts against the recess (32). The sealing ring (3) is embedded with multiple layers of memory metal mesh (4). The number of layers of memory metal mesh (4) embedded in the recess (32) is less than the number of layers of memory metal mesh (4) embedded in other parts.

5. A pipe interface structure for a municipal underground drainage network system according to claim 4, characterized in that: A sealing ring (3) is provided between any two adjacent first protrusions (11).

6. A pipe interface structure for a municipal underground drainage network system according to claim 5, characterized in that: The recess (32) corresponds to one or more of the second protrusions (21).

7. A pipe interface structure for a municipal underground drainage network system according to any one of claims 1-6, characterized in that: The first protrusion (11) and the second protrusion (21) have the same structure.

8. A pipe interface structure for a municipal underground drainage network system according to claim 7, characterized in that: The cross-sections of the first protrusion (11) and the second protrusion (21) are semi-circular.

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