Pressure-resistant and low-temperature-resistant MPP electric power tube assembly

Abstract

The utility model provides a compression-resistant low-temperature-resistant MPP electric power pipe assembly, which is provided with an inner pipe and a buffer pipe, reinforcing ribs are arranged between the inner pipe and the buffer pipe, partition plates are arranged between the reinforcing ribs, a protective pipe is arranged on the outer side of the buffer pipe, a thermal insulation layer is arranged between the buffer pipe and the protective pipe, the upper part of the protective pipe is semicircular, and the lower part of the protective pipe is semicircular. The bottom face of the protective pipe is rectangular, water leakage holes are formed in the rectangular bottom face and penetrate through the surface of the buffer pipe, a waterproof groove is formed in the rectangular bottom face, the length of the inner pipe is equal to that of the buffer pipe, and the protective pipe is shorter than that of the buffer pipe. The technical problems that when water is accumulated or rain and snow exist, the surface of an existing power pipe is frozen at low temperature, the power pipe is prone to shrinkage and cracking, and the overall strength and the protection effect are affected are solved. The device can be widely applied to power construction.

Description

Technical Field

[0001] The utility model relates to an electric power pipe assembly, in particular to a pressure-resistant and low-temperature-resistant MPP electric power pipe assembly. Background Art

[0002] MPP power pipes, made primarily from modified polypropylene, are ideal for laying pipelines and cables in specialized locations such as roads, railways, buildings, and riverbeds, without requiring extensive excavation or damage to the road surface. Compared to traditional trenching and pipe laying, trenchless power pipe construction better meets current environmental requirements, eliminating the nuisances of dust and traffic congestion caused by traditional construction methods. This technology also allows for pipeline laying in areas where excavation is impractical, such as historic monuments, downtown areas, crop and farmland conservation areas, highways, and rivers.

[0003] The patent application document with application number 202210509700.8 discloses a pressure-resistant and low-temperature resistant MPP power pipe and processing equipment, which solves the problem of low temperature and pressure resistance of power pipes by optimizing the power pipe structure. However, when there is water accumulation or rain or snow at the installation site of the power pipe, the surface of the power pipe is prone to shrinkage and cracking due to low temperature freezing, which in turn affects its strength and protective effect. Summary of the Invention

[0004] The utility model addresses the technical problem that existing power pipes are prone to shrinkage and cracking due to ice forming on the surface of the power pipes at low temperatures when there is water accumulation or rain or snow, thereby affecting the overall strength and protective effect. The utility model provides a pressure-resistant and low-temperature resistant MPP power pipe assembly that can effectively prevent ice and shrinkage on the surface of the power pipes caused by water accumulation, and can better provide thermal insulation and protection effects, increase overall strength, and extend service life.

[0005] To this end, the technical solution of the present invention is a pressure-resistant and low-temperature resistant MPP power pipe assembly, which is provided with an inner tube and a buffer tube, a reinforcing rib is provided between the inner tube and the buffer tube, a partition plate is provided between the reinforcing ribs, a protective tube is provided on the outside of the buffer tube, and an insulation layer is provided between the buffer tube and the protective tube. The upper part of the protective tube is semicircular and the bottom surface is rectangular. A water leakage hole is provided on the rectangular bottom surface, and the water leakage hole penetrates to the surface of the buffer tube. A waterproof groove is provided on the rectangular bottom surface. The inner tube and the buffer tube are equal in length, and the protective tube is shorter than the buffer tube.

[0006] Preferably, a drainage groove is provided inside the protection tube, the drainage groove is located on the lower surface of the lowest point of the buffer tube, and the end of the drainage groove is connected to the drainage pipe.

[0007] Preferably, the drainage trough has a rectangular cross-section, and the drainage pipe has a circular cross-section.

[0008] Preferably, the reinforcing rib is provided with a threading hole.

[0009] Preferably, the inner tube and the reinforcing ribs are integrally extruded and made of MPP material.

[0010] Preferably, the buffer tube and the partition plate are an integrally formed structure and are made of PE low-pressure polyethylene material.

[0011] The beneficial effects of the utility model are:

[0012] (1) This application provides a protective tube with an insulation layer inside, which can better improve the low-temperature resistance of the power pipe. The top of the protective tube is semicircular, which is not easy to accumulate snow, and the lower part is rectangular, which can be easily placed during installation. By providing a drainage hole on the bottom surface of the rectangle, water accumulation in the power pipe can be avoided, thereby minimizing the risk of internal freezing.

[0013] (2) The protective tube is shorter than the buffer tube, which facilitates pipeline connection operations;

[0014] (3) A drainage groove is provided at the lowest point of the buffer tube inside the protective tube. When there is water accumulated inside, it can be discharged through the drainage hole and the drainage groove as much as possible to drain the accumulated water inside and reduce the risk of freezing.

[0015] (4) Wire holes are set on the reinforcement to meet different wiring requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the present utility model;

[0017] Figure 2 This is a front view structural diagram of Example 1 of the present utility model;

[0018] Figure 3 This is a side structural diagram of Example 1 of the present utility model;

[0019] Figure 4 This is a bottom view of the structure of Example 1 of the present utility model;

[0020] Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 6 yes Figure 4 Schematic diagram of the cross-section structure at the middle BB;

[0022] Figure 7 This is a front view structural diagram of Example 2 of the present utility model;

[0023] Figure 8 yes Figure 7 Schematic diagram of the cross-section structure at CC in the middle;

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of Example 3 of the present utility model.

[0025] Explanation of symbols in the figure:

[0026] 1. Inner tube; 2. Buffer tube; 3. Protective tube; 4. Reinforcement rib; 5. Partition plate; 6. Leakage hole; 7. Drain outlet; 8. Drain trough; 9. Threading hole; 10. Waterproof groove; 11. Notch. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the embodiments.

[0028] Example 1

[0029] like Figure 1-6 Figure 1 shows a pressure-resistant and low-temperature-resistant MPP power pipe assembly comprising an inner tube 1 and a buffer tube 2. A reinforcing rib 4 is provided between the inner tube 1 and the buffer tube 1, with a partition 5 provided between the reinforcing ribs 4. A protective tube 3 is provided on the outside of the buffer tube 2, with an insulation layer (not labeled) provided between the buffer tube 2 and the protective tube 3. The protective tube 3 has a semicircular top and a rectangular bottom with a drainage hole 6 extending through the surface of the buffer tube 2. The inner tube 1 and the buffer tube 2 are of equal length, with the protective tube 3 being shorter than the buffer tube 2. A drainage groove 8 is provided inside the protective tube 3, located on the lower surface of the buffer tube at its lowest point, with the end of the groove connected to a drain port 7.

[0030] The drain trough 8 has a rectangular cross-section, while the drain outlet 7 has a circular cross-section, facilitating connection to standard drainage fittings. The inner tube 1 and reinforcement ribs 4 are integrally extruded and made of MPP. The buffer tube 2 and separator 5 are integrally molded and made of PE low-pressure polyethylene.

[0031] The present application provides a protective tube 3 with an insulation layer inside the protective tube 3, which can better improve the low-temperature resistance of the power pipe. The top of the protective tube 3 is semicircular, which is not easy to accumulate snow and water. The lower part is arranged in a rectangular shape, which can be conveniently placed during installation. By arranging a leakage hole 6 on the bottom surface of the rectangle, water accumulation in the power pipe can be avoided, and the accumulated water can be discharged in time to minimize the risk of internal freezing; the protective tube 3 is shorter than the buffer tube 2, which can facilitate pipeline connection operations; a drainage groove 8 is provided at the lowest point of the buffer tube 2 inside the protective tube 3. When there is accumulated water inside, in addition to being discharged through the leakage hole 6, it can also be discharged through the drainage groove 8, so that the internal accumulated water is drained as much as possible to reduce the risk of freezing.

[0032] Example 2

[0033] like Figure 7-8As shown, based on Example 1, wire holes 9 can be provided on the reinforcing rib 4 according to specific circumstances to meet different wiring requirements.

[0034] Example 3

[0035] like Figure 9 As shown, on the basis of Example 1, a waterproof groove 10 is provided at the rectangular bottom surface of the protective tube 3, and a notch 11 is provided at the end of the waterproof groove 10 for communicating with the outside. The depth of the waterproof groove 10 is not less than 5 mm to prevent the bottom surface from being soaked in water; the distance between the surface of the waterproof groove 10 and the outer surface of the rectangular bottom surface (i.e., the wall thickness) is not less than 5 mm to meet the strength requirements.

[0036] However, the above description is merely a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A pressure-resistant and low-temperature-resistant MPP power pipe assembly, characterized in that: An inner tube and a buffer tube are provided, reinforcing ribs are provided between the inner tube and the buffer tube, a partition plate is provided between the reinforcing ribs, a protective tube is provided on the outside of the buffer tube, an insulation layer is provided between the buffer tube and the protective tube, the upper part of the protective tube is semicircular, the bottom surface is rectangular, a water leakage hole is provided on the rectangular bottom surface, the water leakage hole penetrates to the surface of the buffer tube, a waterproof groove is provided on the rectangular bottom surface, the inner tube and the buffer tube are equal in length, and the protective tube is shorter than the buffer tube.

2. The pressure-resistant and low-temperature-resistant MPP power pipe assembly according to claim 1, characterized in that: A drainage groove is provided inside the protection tube. The drainage groove is located on the lower surface of the lowest part of the buffer tube. The end of the drainage groove is connected to the drainage pipe.

3. The pressure-resistant and low-temperature-resistant MPP power pipe assembly according to claim 2, characterized in that: The drainage trough has a rectangular cross section, and the drainage pipe has a circular cross section.

4. The pressure-resistant and low-temperature-resistant MPP power pipe assembly according to claim 1, characterized in that: The reinforcing rib is provided with a threading hole.

5. The pressure-resistant and low-temperature-resistant MPP power pipe assembly according to claim 1, characterized in that: The inner tube and the reinforcing ribs are integrally extruded and made of MPP material.

6. The pressure-resistant and low-temperature-resistant MPP power pipe assembly according to claim 1, characterized in that: The buffer tube and the partition plate are an integrally formed structure and are made of PE low-pressure polyethylene material.

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