High strength drain pipe

Abstract

The application relates to the technical field of drainage pipes, and discloses a high-strength drainage pipe, a spiral outer pipe is connected to the outer side wall of a pipe body through thermal compounding, and a plurality of supporting pipes movably arranged in the outer pipe are arranged in the outer pipe. The application has the advantages of simple structure, high compression resistance of the drainage pipe and low probability of breakage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drainage pipe, in particular to a high-strength drainage pipe. BACKGROUND

[0002] At present, drainage pipes mainly undertake the task of rainwater, sewage, farmland drainage and other drainage. Drainage pipes are divided into plastic drainage pipes, concrete pipes (CP) and reinforced concrete pipes (RCP).

[0003] Drainage pipes are used to transport high-pressure fluids. In order to enhance the strength of the drainage pipe, steel wire steel belts are usually arranged in the pipe of the drainage pipe to enhance the compressive strength. However, when the drainage pipe is recycled, the steel wire steel belt is adhered to the plastic pipe, and it is very difficult to separate the two, which in turn leads to high recycling cost of the drainage pipe. Secondly, arranging the steel wire steel belt in the drainage pipe will affect the ductility of the drainage pipe, that is, the ability of plastic deformation of the drainage pipe.

[0004] In order to improve this problem, a plastic reinforced pipe is disclosed in Chinese patent CN201014074Y, which comprises a pipe body and a fiber net arranged therein. A spiral reinforcing rib is arranged outside the pipe body and is integrated with the pipe body. The spiral reinforcing rib is a plastic spiral rib, which is tightly connected with the outer wall of the pipe body through thermal compounding. Compared with the drainage pipe provided with traditional steel wire steel belts, the pipe body has a lower specific gravity, good elasticity, not easy to bend, high wear resistance, and long service life. However, the compressive strength of the plastic reinforced pipe still needs to be improved. Secondly, when the plastic reinforced pipe is broken at a certain position, the strength of the pipe body at the position of the plastic reinforced pipe breakage will be affected, and the compressive capacity of the pipe body at the position of the plastic reinforced pipe breakage will be weakened, which leads to the breakage of the pipe body at the position of the plastic reinforced pipe breakage. SUMMARY

[0005] The present application aims to provide a high-strength drainage pipe to improve the strength of the drainage pipe and reduce the probability of breakage of the drainage pipe.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-strength drainage pipe, a spiral outer pipe is hot-combined and connected on the outer side wall of the pipe body, and a plurality of support pipes movably arranged in the outer pipe.

[0007] Principles and beneficial effects of the present application: (1) In the prior art, the plastic reinforced pipe adopts a solid structure. When the plastic reinforced pipe breaks, the position of the broken plastic reinforced pipe loses the supporting ability to the pipe body, thereby reducing the compression resistance of the pipe body. The position of the broken plastic reinforced pipe on the pipe body is subjected to an enhanced pressure, and the pipe body is prone to rupture at the position of the broken plastic reinforced pipe, which eventually leads to the failure of the drainage pipe. In the present scheme, when the outer pipe of the spiral heat-combined pipe breaks away from the side wall of the pipe body, the side wall close to the pipe body is still not broken and supports the pipe body, thereby ensuring the compression resistance of the drainage pipe and reducing the probability of rupture of the drainage pipe.

[0008] (2) In the present scheme, the movable supporting pipe is arranged in the outer pipe of the spiral. When the outer pipe is subjected to an impact force, the supporting pipe supports the outer pipe, and the supporting pipe can buffer the force acting on the outer pipe, thereby reducing the probability of rupture of the outer pipe and ensuring the supporting strength of the pipe body. Meanwhile, the supporting pipe continues to support the position of the broken outer pipe, thereby further ensuring the compression strength of the pipe body.

[0009] (3) In the present scheme, when the outer pipe is subjected to a pressing force, the outer pipe deforms, and the outer pipe presses the supporting pipe to move in the outer pipe. When subjected to a pressing force, the movement of the supporting pipe in the outer pipe can consume the pressing kinetic energy, thereby reducing the pressing force acting on the outer pipe and further reducing the probability of rupture of the outer pipe.

[0010] Further, the supporting pipe and the outer pipe are filled with a movable filling layer.

[0011] Beneficial effects: The outer pipe, the filling layer and the supporting pipe form a three-layer supporting structure. After the outer pipe breaks away from the side of the pipe body, the side of the outer pipe close to the pipe body is always connected to the pipe body, thereby always maintaining the support to the pipe body and ensuring the compression strength of the pipe body. Meanwhile, the supporting pipe is still located in the outer pipe, and the supporting pipe can still support the position of the broken pipe body, thereby ensuring the compression strength of the pipe body and reducing the probability of rupture of the pipe body.

[0012] Further, the filling layer is composed of PE material.

[0013] Beneficial effects: PE material is polyethylene material. Polyethylene is odorless, non-toxic, and has a waxy feel. It has excellent low-temperature resistance, good chemical stability, and can resist corrosion of most acids and bases. When the outer pipe is corroded, the filling layer can provide certain protection to the pipe body and reduce the probability of corrosion of the pipe body. Meanwhile, the PE material has a certain elasticity, which can provide a certain buffer to the outer pipe and the supporting pipe when they are subjected to an impact, thereby further reducing the probability of rupture of the supporting pipe and the outer pipe and ensuring the supporting strength of the pipe body.

[0014] Further, the filling layer is composed of sponge material.

[0015] Beneficial effects: The sponge material has certain elasticity, and when the outer pipe and the supporting pipe are impacted, the sponge material can form certain buffering for the outer pipe and the supporting pipe, further reducing the probability of breakage of the supporting pipe and the outer pipe, thereby ensuring the supporting strength of the pipe body.

[0016] Further, the pipe body comprises an inner layer and an outer layer.

[0017] Beneficial effects: The inner layer and the outer layer enhance the compression resistance of the outer part and the inner part of the pipe body through the multi-layer structure.

[0018] Further, the outer layer is made of PE material.

[0019] Beneficial effects: The outer layer is made of PE material, has certain ductility and compression resistance, and has the characteristics of light weight and high strength.

[0020] Further, the inner layer is composed of a fiber mesh.

[0021] Beneficial effects: The fiber mesh is made into the inner layer, and when the outer layer is broken, the fiber mesh forms adhesion to the outer layer, reducing the probability of scattering of the broken outer layer. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a front view of the high-strength drainage pipe in embodiments one and two of the present application;

[0023] Figure 2 is a partial cross-sectional view of the high-strength drainage pipe in embodiments one and two of the present application;

[0024] Figure 3 is a partial cross-sectional view of the high-strength drainage pipe in embodiment three of the present application. DETAILED DESCRIPTION

[0025] The following will be further described in detail through specific embodiments:

[0026] The reference signs in the drawings of the specification include: pipe body 1, outer layer 11, inner layer 12, outer pipe 2, supporting pipe 21, filling layer 22, outer pipe inner wall 23, and outer pipe outer wall 24.

[0027] Embodiment one:

[0028] Basically as shown in the accompanying Figure 1 and the accompanying Figure 2 , a high-strength drainage pipe comprises a pipe body 1, the pipe body 1 comprises an inner layer 12 and an outer layer 11, in this embodiment, the inner layer 12 is hot-combined on the inner wall of the outer layer 11, the inner layer 12 is composed of a fiber mesh, and a corrosion-resistant layer (not shown in the figure) is coated between the fiber mesh and the inner wall of the outer layer 11, the corrosion-resistant layer is composed of corrosion-resistant paint, for example: Teflon paint, and the outer layer 11 is made of PE material.

[0029] The outer tube 2, made of PE material, is thermally bonded to the tube body 1 with a spirally arranged outer tube 2. Several movable support tubes 21 are installed inside the outer tube 2, meaning there is a certain gap between the support tubes 21 and the outer tube 2. In this embodiment, there are two support tubes 21, and the space between the outer tube 2 and the support tubes 21 is filled with air. When the outer tube 2 is compressed, the support tubes 21 will move inside the outer tube 2 under the compression action of the outer tube 2. This dissipates the energy of the compressive force on the outer tube 2, and the support tubes 21 buffer the compressive force on the outer tube 2, reducing the probability of the outer tube 2 being crushed.

[0030] Example 2:

[0031] The difference between Example 2 and Example 1 is as follows: Figure 1 and attached Figure 2 As shown, a movable filler layer 22, composed of granular PE material, is filled between the outer tube 2 and the support tube 21. The specific installation method is as follows: The outer tube 2 is thermally bonded to the outer wall of the outer layer 11. The sidewall where the outer tube 2 is thermally bonded to the outer wall of the outer layer 11 is the inner wall 23 of the outer tube, and the sidewall of the outer tube 2 away from the outer layer 11 is the outer wall 24 of the outer tube. The support tube 21 is inserted into the outer tube 2, and the support tube 21 is arranged along the spiral direction of the outer tube 2. Then, the granular PE material is filled between the outer tube 2 and the support tube 21 to form the filler layer 22. The filler layer 22, composed of granular PE material, disperses the compressive force when the outer tube 2 is subjected to pressure. Simultaneously, when the outer tube 2 compresses the support tube 2, the filler layer 22 does not affect the movement of the support tube 21, and the support tube 21 further absorbs the compressive force on the outer tube 21, thus achieving the purpose of buffering the outer tube 2.

[0032] The specific implementation process is as follows:

[0033] When transporting high-pressure solutions through drain pipes, the corrosion-resistant layer protects the inner wall of the drain pipe, reducing the chance of corrosion. The fiber mesh provides some adhesion to the drain pipe, preventing it from scattering if it breaks.

[0034] In this embodiment, the outer tube 2, the filling layer 22, and the support tube 21, with the support tube 21 filled with air, provide support for the tube body 1, thereby enhancing its compressive strength. Since both the outer tube 2 and the filling layer 22 are made of PE material, which is corrosion-resistant, this reduces the risk of breakage due to corrosion. Furthermore, if the outer tube 2 is subjected to impact, the filling layer 22 and the support tube 21 will act as a buffer, reducing the probability of breakage. Even if the outer tube 2 breaks at one or more locations, the support tube 21 will still support the tube body 1 at the point of breakage, thus ensuring the compressive strength of the tube body 1.

[0035] In this embodiment, when the outer tube 2 ruptures, it is generally the outer wall 24 of the outer tube that ruptures, while the inner wall 23 of the outer tube remains on the tube body 1. The outer wall 24 of the outer tube still effectively supports the tube body 1, although the supporting effect is somewhat reduced. However, since the outer wall 24 of the outer tube is always on the tube body 1, the probability of the tube body 1 rupture is reduced. The support tube 21 and the filling layer 22, located on the inner wall 23 of the outer tube, also maintain their supporting effect on the tube body 1. Because the outer tube 2 contains the filling layer 22 and the support tube 21, the filling layer 22 and the support tube 21 can also enhance the strength of the outer tube 2. The filling layer 22, the support tube 21, and the outer tube 2 are all made of PE material, which has a certain degree of ductility, thus having little impact on the ductility of the tube body 1.

[0036] Example 3:

[0037] The difference between Example 3 and Example 1 is as follows: Figure 3 As shown, three support pipes 21 are installed inside the outer pipe 2, and the three support pipes 21 form a triangular structure. The specific installation method is as follows: First, insert two support pipes 21 close to the inner wall of the outer pipe 2 near the pipe body 1, and then insert one support pipe 21 above the other two support pipes 21. Then, fill the outer pipe 2 with granular PE material, and the granular PE material forms the filling layer 22.

[0038] In this embodiment, the three supporting pipes 21 forming a triangle support the outer pipe 2, enhancing the compressive strength of the outer pipe 2 and reducing the probability of deformation or rupture upon impact. Thus, the reduced probability of rupture in the outer pipe 2 improves the compressive strength of the pipe body 1. Compared to Embodiment 1, even after the outer pipe 2 ruptures away from the outer wall of the pipe body 1, the three supporting pipes 21 and the filling layer 22 can still maintain their supporting capacity for the pipe body 1, thereby ensuring the compressive strength of the pipe body 1. Simultaneously, the filling layer 22 can also buffer the supporting pipes 21 when they are subjected to force, reducing the probability of rupture.

[0039] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the concept of the present application, can also be made several variations and improvements, these should also be considered as the protection scope of the present application, these will not affect the effect and the practicality of the patent of the present application. The omitted description of the present application is a known technology.

Claims

1. A high strength drain pipe comprising a pipe body, characterised in that: The outer tube is spirally connected to the outer side wall of the pipe body by thermal compounding, and a plurality of support tubes movably arranged in the outer tube are arranged in the outer tube; the support tubes and the outer tube have gaps therebetween; and a movable filling layer is filled between the support tubes and the outer tube; the outer tube, the filling layer and the support tubes form a three-layer support structure, and the support tubes are filled with air; Three support tubes are arranged in the outer tube, and the three support tubes form a triangular structure.

2. The high strength drain pipe of claim 1, wherein: The filling layer is made of PE material.

3. The high strength drain pipe of claim 1, wherein: The filling layer is made of sponge material.

4. A high strength drain pipe according to any one of claims 1 to 3, characterised in that: The pipe body comprises an inner layer and an outer layer.

5. The high strength drain pipe of claim 4, wherein: The outer layer is made of PE material.

6. The high strength drain pipe of claim 5, wherein: The inner layer is made of fiber mesh.

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