PE communication pipe assembly with multi-layer protection

Abstract

The utility model discloses a kind of PE communication pipe assemblies with multilayer protection, it is related to communication pipe technical field, the utility model includes pipe body, first flange and second flange are respectively fixedly arranged in pipe body both ends, the side of first flange away from second flange is fixedly arranged with inner cylinder and outer cylinder, the end of second flange away from first flange is fixedly arranged with the insertion cylinder for inserting between inner cylinder and outer cylinder;Threaded sleeve, rotationally arranged at the outer circumferential surface of second flange, the outer circumferential surface of outer cylinder is provided with the thread groove adapted with threaded sleeve;By inserting cylinder insertion between inner cylinder and outer cylinder increase the sealing property of pipe body connection, and cooperate with the strength of threaded cylinder and outer cylinder thread groove to enhance the pipe body connection place, effectively prevent settlement, by abutting membrane can enhance sealing property, after abutting of insertion cylinder and first flange, by rubber pad and insertion cylinder inner and outer wall abut and in second flange abut, further enhance the sealing property of pipe body connection.

Description

Technical Field

[0001] This utility model relates to the field of communication pipe technology, specifically to a PE communication pipe assembly with multi-layer protection. Background Technology

[0002] PE communication pipe is a type of conduit made primarily of polyethylene (PE) through an extrusion molding process. It is used to protect communication cables (such as optical fibers and electrical cables) and is widely applied in communication engineering, municipal construction, and road construction. It provides physical protection for the cables, preventing external environmental factors (such as soil corrosion, mechanical damage, and damage from plants and animals) from affecting them, thus ensuring the stable operation of the communication system.

[0003] For example, announcement number CN213675758U discloses a PE communication pipe, which includes an outer layer and an inner layer. The outer layer is made of PE material, and the inner layer is made of PP modified material with added LE300 adhesive and 2% color masterbatch by weight. At the same time, the PE communication pipe is made by multi-layer co-extrusion using a screw extruder. Through the composite method of two-layer co-extrusion, flame-retardant and high-strength materials are melted and composited together at high temperature.

[0004] To ensure the security and stability of communication networks, underground laying of communication pipes is the most mainstream method. Underground PE communication pipes are usually connected by heat fusion or electrofusion. However, when heat fusion and electrofusion are not available, most existing PE communication pipes use sockets and spigots with rubber rings for sealing. However, relying solely on sockets and spigots results in lower joint strength and weak resistance to settlement. Long-term use may cause the rubber rings to loosen and leak. Utility Model Content

[0005] The purpose of this invention is to provide a PE communication pipe assembly with multi-layer protection to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PE communication pipe assembly with multi-layer protection, comprising a pipe body, a first flange and a second flange fixedly disposed at both ends of the pipe body, an inner cylinder and an outer cylinder fixedly disposed on the side of the first flange away from the second flange, and an insert for insertion between the inner cylinder and the outer cylinder fixedly disposed at the end of the second flange away from the first flange; a threaded sleeve rotatably disposed on the outer circumferential surface of the second flange, and a threaded groove adapted to the threaded sleeve being formed on the outer circumferential surface of the outer cylinder.

[0007] Preferably, an abutment membrane is fixedly provided between the inner cylinder and the outer cylinder.

[0008] Preferably, a rubber pad is fixedly provided at the end of both the inner cylinder and the outer cylinder away from the tube body.

[0009] Preferably, grooves are provided between the inner cylinder, the outer cylinder and the rubber pad, and limit rings are fixedly provided on both the inner and outer rings of the insert.

[0010] Preferably, multiple support rings are fixedly installed inside the tube.

[0011] Preferably, an anti-corrosion layer is fixedly provided on the outer circumferential surface of the tube. The anti-corrosion layer is made of glass fiber reinforced polypropylene material and has a thickness of 2-3 mm.

[0012] In the above technical solution, the present invention provides a PE communication pipe assembly with multi-layer protection, which has the following beneficial effects: the insertion of the insert between the inner and outer cylinders increases the sealing of the pipe body connection, and the threaded groove of the threaded cylinder and the outer cylinder enhance the strength of the pipe body connection, effectively preventing settlement. The abutment membrane can enhance the sealing performance. After the insert abuts against the first flange, the rubber gasket abuts against the inner and outer walls of the insert and then against the second flange, further enhancing the sealing performance of the pipe body connection. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 A schematic diagram of the structure of the insert provided in an embodiment of this utility model;

[0016] Figure 3 A schematic diagram of the support ring provided in an embodiment of this utility model;

[0017] Figure 4 Provided for the embodiments of this utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Pipe body; 2. Support ring; 3. First flange; 4. Second flange; 5. Inner cylinder; 6. Outer cylinder; 7. Insert; 8. Threaded sleeve; 9. Threaded groove; 10. Ring groove; 11. Abutment membrane; 12. Groove; 13. Rubber gasket; 14. Limiting ring; 15. Anti-corrosion layer. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1-4 A multi-layered protective PE communication pipe assembly, the technical solution of this utility model, includes a pipe body 1, with a first flange 3 and a second flange 4 fixedly disposed at both ends of the pipe body 1. An inner cylinder 5 and an outer cylinder 6 are fixedly disposed on the side of the first flange 3 away from the second flange 4. An insert 7 for insertion between the inner cylinder 5 and the outer cylinder 6 is fixedly disposed on the side of the second flange 4 away from the first flange 3. A threaded sleeve 8 is rotatably disposed on the outer circumferential surface of the second flange 4. A threaded groove 9 adapted to the threaded sleeve 8 is opened on the outer circumferential surface of the outer cylinder 6. The inner cylinder 5 and the outer cylinder 6 are both fixed on the side of the first flange 3 away from the second flange 4. An annular groove 10 is formed between the outer ring of the inner cylinder 5 and the inner ring of the outer cylinder 6. The thickness of the insert 7 is adapted to the height of the annular groove 10, that is, when the insert 7 is inserted into the annular groove 10, the inner ring and the outer ring of the insert 7 are respectively The inner cylinder 5 and outer cylinder 6 are tightly abutted together. One end of the threaded sleeve 8 is rotatably connected to the second flange 4, and the other end is provided with a thread that mates with the threaded groove 9. When it is necessary to connect the two PE communication pipe bodies 1 together, the first flange 3 of the pipe body 1 is aligned with the second flange 4 of the other pipe body 1. At this time, the thread inside the threaded sleeve 8 abuts with the threaded groove 9 on the outer cylinder 6. Rotate the threaded sleeve 8 on the second flange 4. The threaded sleeve 8 and the threaded groove 9 mate with each other to move the first flange 3 toward the second flange 4, thereby inserting the insert 7 between the inner cylinder 5 and the outer cylinder 6. The abutment between the two sides of the insert 7 and the inner cylinder 5 and the outer cylinder 6 seals the connection of the two pipe bodies 1, thereby preventing leakage. At the same time, the connection strength of the pipe bodies 1 is enhanced by the fit between the inner cylinder 5, the outer cylinder 6, and the insert 7, as well as the fit between the threaded sleeve 8 and the outer cylinder 6.

[0022] Specifically, an abutment membrane 11 is fixedly installed between the inner cylinder 5 and the outer cylinder 6. The abutment membrane 11 is annular, with its outer ring fixedly connected to the inner wall of the outer cylinder 6 and its inner ring fixedly connected to the outer wall of the inner cylinder 5. The abutment membrane 11 has a certain elasticity. When the insert 7 is inserted between the inner cylinder 5 and the outer cylinder 6, the insert 7 abuts against the abutment membrane 11. As the insert 7 moves, the abutment membrane 11 is stretched. At this time, the abutment membrane 11 is located between the insert 7 and the inner cylinder 5 and the outer cylinder 6. The abutment membrane 11 and the insert 7 are interference-fitted, thereby covering the insert 7 and increasing the sealing of the connection between the insert 7 and the inner cylinder 5 and the outer cylinder 6.

[0023] Specifically, rubber gaskets 13 are fixedly installed at the ends of the inner cylinder 5 and the outer cylinder 6 away from the pipe body 1. The rubber gasket 13 of the inner cylinder 5 is located on the outer ring of the inner cylinder 5, and the rubber gasket 13 of the outer cylinder 6 is located on the inner ring of the outer cylinder 6. Both rubber gaskets 13 are annular, and the distance between the two rubber gaskets 13 is slightly smaller than the distance between the inner cylinder 5 and the outer cylinder 6. When the insert 7 is inserted between the inner cylinder 5 and the outer cylinder 6, the end of the insert 7 first passes through the two rubber gaskets 13. At this time, the rubber gasket 13 abuts against the inner and outer walls of the insert 7 to produce an interference fit. The end of the rubber gasket 13 away from the pipe body 1 protrudes slightly from the end walls of the inner and outer cylinders. When the threaded sleeve 8 is turned to make the insert 7 fully enter between the inner cylinder 5 and the outer cylinder 6, the rubber gasket 13 abuts against the second flange 4, thereby further strengthening the sealing between the inner cylinder 5, the outer cylinder 6 and the insert 7, and at the same time enhancing the connection sealing between the inner cylinder 5, the outer cylinder 6 and the second flange 4.

[0024] Specifically, grooves 12 are provided between the inner cylinder 5, the outer cylinder 6, and the rubber gasket 13. Limiting rings 14 are fixedly provided on both the inner and outer rings of the insert 7. The cross-section of each limiting ring 14 is triangular. During the process of the insert 7 moving towards the first flange 3, the limiting ring 14 gradually abuts against the corresponding rubber gasket 13. At this time, the rubber gasket 13 deforms to allow the limiting ring 14 to pass through. When the insert 7 abuts against the first flange 3, the limiting ring 14 moves to the corresponding groove 12. At this time, the limiting ring 14 separates from the corresponding rubber gasket 13, thereby resetting the rubber gasket 13. After the rubber gasket 13 is reset, the side wall of the rubber gasket 13 near the tube body 1 abuts against the side wall of the limiting ring 14 away from the first flange 3, thereby enabling the rubber gasket 13 to prevent the limiting ring 14 from moving away from the first flange 3. Combined with the threaded sleeve 8 and the threaded groove 9 on the outer cylinder 6, it can prevent the two tube bodies 1 from moving and creating a gap.

[0025] Specifically, multiple support rings 2 are fixedly installed inside the pipe body 1; the support rings 2 support the PE communication pipe body 1, which can increase the strength of the pipe body 1 and prevent the pipe body 1 from deforming when subjected to external pressure, thus affecting the normal laying of internal communication cables and signal transmission.

[0026] Specifically, an anti-corrosion layer 15 is fixedly provided on the outer circumference of the pipe body 1. The anti-corrosion layer 15 is made of glass fiber reinforced polypropylene material and has a thickness of 2-3mm. The anti-corrosion layer 15 made of glass fiber reinforced polypropylene material has excellent corrosion resistance and effectively resists the erosion of corrosive substances in the soil.

[0027] 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 PE communication pipe assembly with multi-layer protection, comprising a pipe body (1), characterized in that, The pipe body (1) is fixedly provided with a first flange (3) and a second flange (4) at both ends. The first flange (3) is fixedly provided with an inner cylinder (5) and an outer cylinder (6) on the side away from the second flange (4). The second flange (4) is fixedly provided with a plug (7) for inserting between the inner cylinder (5) and the outer cylinder (6) at the end away from the first flange (3). The threaded sleeve (8) is rotatably disposed on the outer circumferential surface of the second flange (4), and the outer circumferential surface of the outer cylinder (6) is provided with a threaded groove (9) that is adapted to the threaded sleeve (8).

2. The PE communication pipe assembly with multi-layer protection according to claim 1, characterized in that, An abutment membrane (11) is fixedly provided between the inner cylinder (5) and the outer cylinder (6).

3. A PE communication pipe assembly with multi-layer protection according to claim 2, characterized in that, Both the inner cylinder (5) and the outer cylinder (6) are fixedly provided with rubber pads (13) at the ends away from the tube body (1).

4. A PE communication pipe assembly with multi-layer protection according to claim 3, characterized in that, Grooves (12) are provided between the inner cylinder (5), the outer cylinder (6) and the rubber pad (13), and limit rings (14) are fixedly provided on both the inner and outer rings of the insert (7).

5. A PE communication pipe assembly with multi-layer protection according to claim 4, characterized in that, Multiple support rings (2) are fixedly installed inside the tube (1).

6. A PE communication pipe assembly with multi-layer protection according to claim 5, characterized in that, The outer circumferential surface of the tube body (1) is fixedly provided with an anti-corrosion layer (15), which is made of glass fiber reinforced polypropylene material and has a thickness of 2-3 mm.

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