A municipal sewer pipe

Abstract

This utility model discloses a municipal drainage pipe, including pipe A, which consists of pipe body A and port A. Port A is fixed to the end of pipe body A. Pipe body A consists of core pipe, stainless steel mesh, polyurethane foam, and outer corrugated pipe. By designing the core pipe, stainless steel mesh, polyurethane foam, and outer corrugated pipe, the pipe has a multi-layer structure, which improves the load-bearing capacity of the pipe. This addresses the problem that current municipal drainage pipes are mostly buried under roads and need to withstand the pressure of vehicles, as well as the vertical pressure exerted on the pipe by the weight of the soil above after burial, which increases with burial depth. The composite structure of the pipe disperses the loads such as soil pressure and vehicle pressure over a larger area through the mesh structure of the stainless steel mesh, avoiding local stress concentration and effectively resisting pipe deformation.

Description

Technical Field

[0001] This utility model belongs to the field of drainage pipe technology, specifically relating to a municipal drainage pipe. Background Technology

[0002] Drainage pipelines refer to the systems of pipes and their ancillary facilities that collect and discharge sewage, wastewater, and rainwater. These include main pipes, branch pipes, and pipes leading to treatment plants. HDPE pipes, in particular, possess excellent chemical corrosion resistance, resisting the erosion of various chemical media. They also exhibit good flexibility and wear resistance, adapting to various complex terrains and pipeline layouts. Hot-melt connection technology can be used, resulting in strong and reliable joints. The smooth inner wall of the pipe reduces fluid resistance, reducing energy consumption and improving transportation efficiency.

[0003] After existing municipal drainage pipes are laid, since they are mostly buried under roads, they need to withstand the pressure of vehicles. After the pipes are buried, the weight of the soil above them will exert vertical pressure on the pipes, and the greater the burial depth, the greater the pressure. The load-bearing capacity of the pipes is limited, and they cannot meet the load-bearing requirements in the long term. Therefore, this utility model proposes a municipal drainage pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a municipal drainage pipe to solve the problems mentioned in the background art, such as the inability of HDPE pipes to withstand vehicle pressure for a long time after laying due to the limited load-bearing capacity of the pipes, and the vertical pressure exerted on the pipes by the weight of the soil above after burial.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal drainage pipe, comprising a pipe A, wherein the pipe A is composed of a pipe body A and a port A, the port A being fixed to the end of the pipe body A, the pipe body A being composed of a core pipe, a stainless steel mesh, polyurethane foam, and an outer corrugated pipe, the stainless steel mesh being sleeved on the surface of the core pipe, the outer corrugated pipe being sleeved on the surface of the stainless steel mesh, and the polyurethane foam being filled between the core pipe, the stainless steel mesh, and the outer corrugated pipe.

[0006] Preferably, the outer surface of the outer corrugated pipe has a corrugated structure.

[0007] Preferably, the stainless steel mesh has a hollow cylindrical structure.

[0008] Preferably, a pipe B is provided on the side of the pipe A. The pipe B consists of a pipe body B and a port B, and the port B is fixed to the end of the pipe body B.

[0009] Preferably, a sealing assembly is provided at the mating point of port A and port B. The sealing assembly consists of a sealing gasket and symmetrically arranged engaging components. The symmetrically arranged engaging components are located on both sides of the sealing gasket. Each engaging component consists of a fixing groove and a fixing pad. The fixing grooves are all opened on the surface of port A and the surface of port B. The fixing pad is located inside the fixing groove and is fixed to the side of the sealing gasket.

[0010] Preferably, flanges are fitted on the surface of pipe body A and the surface of pipe body B. Multiple fixing components are provided between the symmetrically arranged flanges. Each fixing component consists of bolts, mounting holes, and nuts. The mounting holes are opened on the inside of the flanges, the bolts pass through the inside of the mounting holes, and the nuts are fitted on the end surface of the bolts.

[0011] Preferably, a support frame is provided at the bottom of both pipe A and pipe B. The support frame consists of a support frame and a support base. The support base is fitted to the bottom of pipe A and the bottom of pipe B. The support frame is located at the bottom end of the support base, and the top two sides of the support frame are welded and fixed to the two ends of the support base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing a core tube, stainless steel mesh, polyurethane foam, and outer corrugated pipe, the pipeline adopts a multi-layered structure, which improves the load-bearing capacity of the pipeline. This addresses the problem that the original municipal drainage pipelines were mostly buried under roads and had to withstand the pressure of vehicles, as well as the vertical pressure exerted by the weight of the soil above the pipeline after burial, with the pressure increasing with burial depth. The current pipelines could not meet the load-bearing requirements in the long term. By using a composite structure, the loads such as the pressure of the soil above and the pressure of vehicles are distributed over a larger area through the mesh structure of the stainless steel mesh, avoiding local stress concentration and effectively resisting pipeline deformation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional view of tube A of this utility model;

[0016] Figure 3 This is a cross-sectional view of the installation location of pipe body A and pipe body B of this utility model.

[0017] Figure 4 This utility model Figure 3 Enlarged schematic diagram of region A in the image;

[0018] In the diagram: 1. Pipe A; 11. Pipe Body A; 101. Core Pipe; 102. Stainless Steel Mesh; 103. Polyurethane Foam; 104. Outer Corrugated Pipe; 12. Port A; 2. Pipe B; 21. Pipe Body B; 22. Port B; 3. Flange; 30. Fixing Assembly; 301. Bolt; 302. Mounting Hole; 303. Nut; 4. Sealing Assembly; 41. Sealing Washer; 42. Snap-fit ​​Assembly; 421. Fixing Groove; 422. Fixing Pad; 5. Support Frame; 51. Support Frame; 52. Support Base. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4This utility model provides a technical solution: a municipal drainage pipe, including pipe A1, which consists of a pipe body A11 and a port A12. The port A12 is fixed to the end of the pipe body A11. The pipe body A11 consists of a core pipe 101, a stainless steel mesh 102, polyurethane foam 103, and an outer corrugated pipe 104. The stainless steel mesh 102 is sleeved on the surface of the core pipe 101, and the outer corrugated pipe 104 is sleeved on the surface of the stainless steel mesh 102. The outer corrugated pipe 104, similar to the principle of an arch bridge, converts vertical pressure into circumferential stress in the outer shell layer, utilizing the "deformation buffering" of the corrugations. The pipe features load-absorbing properties, reducing pressure on the inner wall of the pipe. Polyurethane foam 103 is filled between the core pipe 101, stainless steel mesh 102, and outer corrugated pipe 104. The outer surface of the outer corrugated pipe 104 has a corrugated structure, and the stainless steel mesh 102 has a hollow cylindrical structure. Through the design of the core pipe 101, stainless steel mesh 102, polyurethane foam 103, and outer corrugated pipe 104, the pipe has a multi-layered structure, improving its load-bearing capacity. This addresses the problem that existing municipal drainage pipes, often buried under roads, must withstand vehicle pressure, and the vertical pressure exerted by the soil above after burial (the pressure increases with burial depth), cannot consistently meet load-bearing requirements. The composite structure of the pipe disperses the loads from soil pressure and vehicle pressure over a larger area through the mesh structure of the stainless steel mesh 102, avoiding localized stress concentration and effectively resisting pipe deformation. Pipe B2 is located on the side of pipe A1, and pipe B2 consists of the pipe body... Composed of B21 and port B22, port B22 is fixed to the end of pipe body B21. Flanges 3 are fitted onto the surfaces of pipe body A11 and pipe body B21. Multiple fixing components 30 are arranged symmetrically between the flanges 3. Each fixing component 30 consists of bolts 301, mounting holes 302, and nuts 303. Mounting holes 302 are located inside the flanges 3, bolts 301 pass through the inner side of the mounting holes 302, and nuts 303 are fitted onto the end surface of the bolts 301. Bolt 301 passes through mounting hole 302, and then nut 303 is put on the end of bolt 301 to achieve pipe splicing and fixing. Support frame 5 is provided at the bottom of pipe A1 and the bottom of pipe B2. Support frame 5 consists of support frame 51 and support seat 52. Support seat 52 is fitted to the bottom of pipe A1 and the bottom of pipe B2. Support frame 51 is set at the bottom end of support seat 52, and the top two sides of support frame 51 are welded and fixed to the two ends of support seat 52. The support frame 5 is used to support the pipe.

[0021] In this embodiment, preferably, a sealing component 4 is provided at the mating point of port A12 and port B22. The sealing component 4 consists of a sealing gasket 41 and symmetrically arranged engaging components 42. The symmetrically arranged engaging components 42 are arranged on both sides of the sealing gasket 41. The engaging components 42 consist of a fixing groove 421 and a fixing pad 422. The engaging components 42 that make up the sealing component 4 form a connection between the sealing component 4 and the pipe, so that the sealing component 4 and the pipe can be initially installed and fixed in position during installation, so as to prevent the pipe from falling off during splicing. The fixing grooves 421 are all opened on the surface of port A12 and the surface of port B22. The fixing pad 422 is arranged inside the fixing groove 421 and is fixed to the side of the sealing gasket 41.

[0022] The working principle and usage process of this utility model are as follows: During the production and processing of pipe A1, a core tube 101 is first extruded, and a stainless steel mesh 102 is wrapped around the core tube 101. Then, an outer corrugated tube 104 is extruded to wrap the stainless steel mesh. Finally, polyurethane foam 103 is filled between the core tube 101, the stainless steel mesh 102, and the outer corrugated tube 104. Under centrifugal action, the polyurethane foam 103 can bond the core tube 101, the stainless steel mesh 102, and the outer corrugated tube 104 together, further enhancing the structural stability. Then, flanges 3 are installed on pipe A1 and pipe B2. By fitting flanges 3 onto the surface of pipe A1 and the surface of pipe B2 respectively, and fixing the engagement points of pipe A1, pipe B2, and flanges 3 through heat fusion, sealing component 4 is inserted into the end of pipe A1. Then, the end of pipe A1 is attached to the end of pipe B2, and the fixing component 30 is operated to lock it. During the process, the sealing component 4 is squeezed to seal the joint between pipe A1 and pipe B2.

[0023] 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 these 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 municipal drainage pipe, comprising pipe A (1), characterized in that: The pipe A (1) consists of a pipe body A (11) and a port A (12). The port A (12) is fixed to the end of the pipe body A (11). The pipe body A (11) consists of a core tube (101), a stainless steel mesh (102), polyurethane foam (103), and an outer corrugated pipe (104). The stainless steel mesh (102) is fitted on the surface of the core tube (101), and the outer corrugated pipe (104) is fitted on the surface of the stainless steel mesh (102). The polyurethane foam (103) is filled between the core tube (101), the stainless steel mesh (102), and the outer corrugated pipe (104).

2. A municipal drainage pipe according to claim 1, characterized in that: The outer surface of the outer corrugated pipe (104) has a corrugated structure.

3. A municipal drainage pipe according to claim 1, characterized in that: The stainless steel mesh (102) has a hollow cylindrical structure.

4. A municipal drainage pipe according to claim 1, characterized in that: Pipe B (2) is provided on the side of pipe A (1). Pipe B (2) consists of pipe body B (21) and port B (22). Port B (22) is fixed to the end of pipe body B (21).

5. A municipal drainage pipe according to claim 4, characterized in that: A sealing component (4) is provided at the fitting point of port A (12) and port B (22). The sealing component (4) consists of a sealing gasket (41) and symmetrically arranged engaging components (42). The symmetrically arranged engaging components (42) are located on both sides of the sealing gasket (41). The engaging components (42) consist of a fixing groove (421) and a fixing pad (422). The fixing groove (421) is opened on the surface of port A (12) and the surface of port B (22). The fixing pad (422) is located inside the fixing groove (421). The fixing pad (422) is fixed to the side of the sealing gasket (41).

6. A municipal drainage pipe according to claim 4, characterized in that: Flanges (3) are fitted on the surface of pipe body A (11) and pipe body B (21). Multiple fixing components (30) are provided between the symmetrically arranged flanges (3). Each fixing component (30) consists of a bolt (301), a mounting hole (302), and a nut (303). The mounting hole (302) is opened on the inside of the flange (3). The bolt (301) passes through the inside of the mounting hole (302). The nut (303) is fitted on the end surface of the bolt (301).

7. A municipal drainage pipe according to claim 1, characterized in that: Support frames (5) are provided at the bottom of pipe A (1) and pipe B (2). The support frame (5) consists of a support frame (51) and a support base (52). The support base (52) is attached to the bottom of pipe A (1) and pipe B (2). The support frame (51) is located at the bottom end of the support base (52), and the top two sides of the support frame (51) are welded and fixed to the two ends of the support base (52).

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