Large diameter cable protection pipe union joint

CN224935312UActive Publication Date: 2026-11-03FUJIAN HOSHING PLASTICS
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Patent Information

Application Number
CN202522167164.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2026-11-03
Estimated Expiration
2035-10-14

AI Technical Summary

Technical Problem

The existing hot-melt welded connections of large-diameter modified polypropylene power cable protection pipes cannot be disassembled, leading to inconvenience in maintenance.

Method used

The design employs a flange structure and an integral sealing ring, and the cable protection pipe can be detachably connected through the mechanical connection of flanges No. 1 and No. 2, bolts and nuts.

Benefits of technology

It achieves a highly sealed and detachable cable protection pipe connection, facilitating later maintenance and repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of large-caliber cable protection pipe union joint, including elastic sealing ring, flange, bolt and nut;Flange is composed of two half-ring cylindrical body clamps with outer ear, and half-ring cylindrical body clamps with outer ear include end head hole parallel double piece, end head hole single piece, outer ear, bolt hole and No. 0 bolt hole, elastic sealing ring is located between two large-caliber cable protection pipes, flange is sleeved into one end of large-caliber cable protection pipe, outer ear is the support of large-caliber cable protection pipe, bolt is in contact with the surface of large-caliber cable protection pipe through bolt hole and locked, another flange is also sleeved into one end of another large-caliber cable protection pipe, bolt is sequentially penetrated in No. 0 bolt hole of two flanges, and mechanically connected with nut, that is, the connection of large-caliber cable protection pipe is completed;Large-caliber cable protection pipe union joint not only has high connection sealing strength, but also is detachable, which is convenient for later maintenance.
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Description

Technical Field

[0001] This utility model relates to a union, especially a union for large-diameter cable protection pipes. Background Technology

[0002] For large-diameter modified polypropylene power cable protection pipes, hot-melt welding provides a high-strength seal but prevents disassembly for maintenance. To facilitate repairs, a large-diameter cable protection pipe union with a flange structure and an integral sealing ring is provided. This union offers not only high-strength sealing but also detachability for easy maintenance. Summary of the Invention

[0003] The purpose of this utility model is to provide a large-diameter cable protection pipe fitting for connecting large-diameter cable protection pipes. It adopts a flange structure and is equipped with an integral sealing ring, which not only provides high connection sealing strength but is also detachable for convenient later maintenance.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a large-diameter cable protection pipe joint, including an elastic sealing ring 10, a first flange 20, a second flange 30, a bolt 40, and a nut 50; The elastic sealing ring 10 is annular cylindrical in shape; The first flange 20 includes a first semi-annular cylindrical clamping block 21 with external lugs and a first bolt 22; the first flange 20 is composed of two first semi-annular cylindrical clamping blocks 21 with external lugs. The first semi-annular cylindrical clamping block 21 with external lugs includes a first parallel double piece 211 with a hole at one end, a first single piece 212 with a hole at one end, a first external lug 213, a first bolt hole 214, and a second bolt hole 0. The first parallel double piece 211 with a hole at one end and the first single piece 212 with a hole at one end are respectively disposed at both ends of the first semi-annular cylindrical clamping block 21 with external lugs. The first external lug 213 is symmetrically distributed and protrudes radially outward from the outer edge of the first semi-annular cylindrical clamping block 21 with external lugs. The first bolt hole 214 is located at the top of the first semi-annular cylindrical clamping block 21 with external lugs, and the first bolt hole 213 is located at the top of the first semi-annular cylindrical clamping block 21 with external lugs. 14 has an embedded nut inside. The bolt hole 0 is longitudinally connected to the first end hole parallel double piece 211 and the first end hole single piece 212. The first end hole single piece 212 of one end of the first semi-annular cylindrical clamping block 21 with an external ear is embedded in the middle of the first end hole parallel double piece 211 of the other first semi-annular cylindrical clamping block 21. Then the first end hole single piece 212 of the other end of the first semi-annular cylindrical clamping block 21 with an external ear is also embedded in the middle of the first end hole parallel double piece 211 of the other end of the first semi-annular cylindrical clamping block 21, forming the first flange 20. The second flange 30 includes a second semi-annular cylindrical clamping block 31 with external lugs and a second bolt 32; the second flange 30 is composed of two second semi-annular cylindrical clamping blocks 31 with external lugs. The second semi-annular cylindrical clamping block 31 with external lugs includes a second parallel double piece 311 with a hole at one end, a second single piece 312 with a hole at one end, a second external lug 313, a second bolt hole 314, and a bolt hole 0. The second parallel double piece 311 and the second single piece 312 with a hole at one end are respectively disposed at both ends of the second semi-annular cylindrical clamping block 31 with external lugs. The second external lugs 313 are symmetrically distributed and protrude radially outward from the outer edge of the second semi-annular cylindrical clamping block 31 with external lugs. The second bolt hole 314 is located at the top of the second semi-annular cylindrical clamping block 31 with external lugs. An embedded nut is provided inside 314. The bolt hole 0 of No. 0 runs longitudinally through the parallel double piece 311 with hole at the second end and the single piece 312 with hole at the second end. The single piece 312 with hole at the second end of one end of the semi-annular cylindrical clamping block 31 with external ears is embedded in the middle of the parallel double piece 311 with hole at the second end of one end of the semi-annular cylindrical clamping block 31 with external ears. Then the single piece 312 with hole at the second end of the other end of the semi-annular cylindrical clamping block 31 with external ears is also embedded in the middle of the parallel double piece 311 with hole at the second end of the other end of the semi-annular cylindrical clamping block 31 with external ears, forming the second flange 30. The elastic sealing ring 10 is located between two large-diameter cable protection pipes. The first flange 20 is fitted onto one end of the first large-diameter cable protection pipe. The first external lug 213 is a support for the first large-diameter cable protection pipe. The first bolt 22 passes through the first bolt hole 214 and contacts and locks onto the surface of the first large-diameter cable protection pipe. The second flange 30 is fitted onto one end of the second large-diameter cable protection pipe. The second external lug 313 is a support for the second large-diameter cable protection pipe. The second bolt 32 passes through the second bolt hole 314 and contacts and locks onto the surface of the second large-diameter cable protection pipe. The bolt 40 passes through the bolt hole 0 of the first flange 20 and the bolt hole 0 of the second flange 30 in sequence and is mechanically connected to the nut 50, thus completing the connection between the first large-diameter cable protection pipe and the second cable protection pipe. The elastic sealing ring 10 is made of a material with elastic properties; the first flange 20 and the second flange 30 are made of rigid plastic material.

[0005] The beneficial effects of this utility model are: 1. Flanges are installed at both ends of the large-diameter cable protection pipe. The outer ears of the flanges support the large-diameter cable protection pipe. The flanges can be stacked to realize the interlayer stacking of large-diameter cable protection pipes. 2. The elastic sealing ring not only seals the connection of large-diameter cable protection pipes, but also prevents the connection from being deformed by collision. 3. The bolts on the top of the flange pass through the bolt holes on the top and contact the large-diameter cable protection pipe. The tighter the bolts are tightened, the more secure the connection between the flange and the large-diameter cable protection pipe will be. 4. Bolts are sequentially inserted through flange No. 1 and flange No. 2 and mechanically connected with nuts. The tighter the mechanical connection, the tighter the connection of the large-diameter cable protection pipe. Attached Figure Description

[0006] Figure 1 This is an exploded view of a large-diameter cable protection pipe fitting, where 10 is the elastic sealing ring, 20 is flange number one, 30 is flange number two, 40 is the bolt, and 50 is the nut. Figure 2 This is an exploded and three-dimensional view of flange 20, where 21 is a semi-annular cylindrical clamping block with external lugs, 22 is a bolt, 211 is a parallel double piece with a hole at the end, 212 is a single piece with a hole at the end, 213 is an external lug, 214 is a bolt hole, and 0 is a bolt hole. Figure 3 This is an exploded and three-dimensional view of flange No. 2 30, where 31 is the No. 2 semi-annular cylindrical clamping block with external lugs, 32 is the No. 2 bolt, 311 is the No. 2 parallel double piece with holes at the end, 312 is the No. 2 single piece with holes at the end, 313 is the No. 2 external lug, 314 is the No. 2 bolt hole, and 0 is the No. 0 bolt hole. Figure 4 This is a 3D diagram of the connection of a large-diameter cable protection pipe fitting, where 10 is the elastic sealing ring, 20 is flange number one, 30 is flange number two, 40 is the bolt, and 50 is the nut. Detailed Implementation

[0007] like Figure 1 As shown, the cable protection pipe union includes an elastic sealing ring 10, a first flange 20, a second flange 30, a bolt 40, and a nut 50; the elastic sealing ring 10 is an annular cylindrical shape. like Figure 2 As shown, the first flange 20 includes a first semi-annular cylindrical clamping block 21 with external lugs and a first bolt 22; the first flange 20 is composed of two first semi-annular cylindrical clamping blocks 21 with external lugs. The first semi-annular cylindrical clamping block 21 with external lugs includes a first parallel double piece 211 with a hole at one end, a first single piece 212 with a hole at one end, a first external lug 213, a first bolt hole 214, and a second bolt hole 0. The first parallel double piece 211 with a hole at one end and the first single piece 212 with a hole at one end are respectively disposed at both ends of the first semi-annular cylindrical clamping block 21 with external lugs. The first external lug 213 is symmetrically distributed and protrudes radially outward from the outer edge of the first semi-annular cylindrical clamping block 21 with external lugs. The first bolt hole 214 is located at the top of the first semi-annular cylindrical clamping block 21 with external lugs, and the first bolt hole 213 is located at the top of the first semi-annular cylindrical clamping block 21 with external lugs. 14 has an embedded nut inside. The bolt hole 0 is longitudinally connected to the first end hole parallel double piece 211 and the first end hole single piece 212. The first end hole single piece 212 of one end of the first semi-annular cylindrical clamping block 21 with an external ear is embedded in the middle of the first end hole parallel double piece 211 of the other first semi-annular cylindrical clamping block 21. Then the first end hole single piece 212 of the other end of the first semi-annular cylindrical clamping block 21 with an external ear is also embedded in the middle of the first end hole parallel double piece 211 of the other end of the first semi-annular cylindrical clamping block 21, forming the first flange 20. like Figure 3 As shown, the second flange 30 includes a second semi-annular cylindrical clamping block 31 with external lugs and a second bolt 32; the second flange 30 is composed of two second semi-annular cylindrical clamping blocks 31 with external lugs. The second semi-annular cylindrical clamping block 31 with external lugs includes a second parallel double piece 311 with a hole at one end, a second single piece 312 with a hole at one end, a second external lug 313, a second bolt hole 314, and a bolt hole 0. The second parallel double piece 311 and the second single piece 312 with a hole at one end are respectively disposed at both ends of the second semi-annular cylindrical clamping block 31 with external lugs. The second external lugs 313 are symmetrically distributed and protrude radially outward from the outer edge of the second semi-annular cylindrical clamping block 31 with external lugs. The second bolt hole 314 is located at the top of the second semi-annular cylindrical clamping block 31 with external lugs. An embedded nut is provided inside 314. The bolt hole 0 of No. 0 runs longitudinally through the parallel double piece 311 with hole at the second end and the single piece 312 with hole at the second end. The single piece 312 with hole at the second end of one end of the semi-annular cylindrical clamping block 31 with external ears is embedded in the middle of the parallel double piece 311 with hole at the second end of one end of the semi-annular cylindrical clamping block 31 with external ears. Then the single piece 312 with hole at the second end of the other end of the semi-annular cylindrical clamping block 31 with external ears is also embedded in the middle of the parallel double piece 311 with hole at the second end of the other end of the semi-annular cylindrical clamping block 31 with external ears, forming the second flange 30. like Figure 4As shown, the elastic sealing ring 10 is located between two large-diameter cable protection pipes. The first flange 20 is fitted onto one end of the first large-diameter cable protection pipe. The first external lug 213 is a support for the first large-diameter cable protection pipe. The first bolt 22 passes through the first bolt hole 214 and contacts and locks onto the surface of the first large-diameter cable protection pipe. The second flange 30 is fitted onto one end of the second large-diameter cable protection pipe. The second external lug 313 is a support for the second large-diameter cable protection pipe. The second bolt 32 passes through the second bolt hole 314 and contacts and locks onto the surface of the second large-diameter cable protection pipe. The bolt 40 passes through the bolt hole 0 of the first flange 20 and the bolt hole 0 of the second flange 30 in sequence and is mechanically connected to the nut 50, thus completing the connection between the first large-diameter cable protection pipe and the second cable protection pipe. The elastic sealing ring 10 is made of a material with elastic properties; the first flange 20 and the second flange 30 are made of rigid plastic material.

Claims

1. A large-diameter cable protection conduit union, characterized in that: Includes elastic sealing ring (10), No. 1 flange (20), No. 2 flange (30), bolt (40) and nut (50); The elastic sealing ring (10) is annular cylindrical in shape; The first flange (20) includes a first semi-annular cylindrical clamping block (21) with external lugs and a first bolt (22); the first flange (20) is composed of two first semi-annular cylindrical clamping blocks (21) with external lugs; The first semi-annular cylindrical clamping block (21) with external ears includes a first parallel double piece (211) with a hole at one end, a first single piece (212) with a hole at one end, a first external ear (213), a first bolt hole (214), and a second bolt hole (0). The first parallel double piece (211) and the first single piece (212) with a hole at one end are respectively disposed at both ends of the first semi-annular cylindrical clamping block (21). The first external ear (213) is symmetrically distributed and protrudes radially outward from the outer edge of the first semi-annular cylindrical clamping block (21). The first bolt hole (214) is located at the top of the first semi-annular cylindrical clamping block (21) and the first bolt hole ( 214) An embedded nut is provided inside. The bolt hole (0) of No. 0 runs longitudinally through the parallel double piece (211) with a hole at the first end and the single piece (212) with a hole at the first end. The single piece (212) with a hole at the first end of one of the semi-annular cylindrical clamping blocks (21) with an external ear is embedded in the middle of the parallel double piece (211) with a hole at the first end of one of the semi-annular cylindrical clamping blocks (21) with an external ear. Then the single piece (212) with a hole at the first end of the other end of the semi-annular cylindrical clamping block (21) with an external ear is also embedded in the middle of the parallel double piece (211) with a hole at the first end of the other end of the semi-annular cylindrical clamping block (21), forming the first flange (20). The second flange (30) includes a second semi-annular cylindrical clamping block (31) with external lugs and a second bolt (32); the second flange (30) is composed of two second semi-annular cylindrical clamping blocks (31) with external lugs; The second semi-annular cylindrical clamping block (31) with external lugs includes a second parallel double piece (311) with a hole at the end, a second single piece (312) with a hole at the end, a second external lug (313), a second bolt hole (314), and a bolt hole (0). The second parallel double piece (311) and the second single piece (312) with a hole at the end are respectively disposed at both ends of the second semi-annular cylindrical clamping block (31). The second external lug (313) is symmetrically distributed and protrudes radially outward from the outer edge of the second semi-annular cylindrical clamping block (31). The second bolt hole (314) is located at the top of the second semi-annular cylindrical clamping block (31) and the second bolt hole... (314) An embedded nut is provided inside. The bolt hole (0) of No. 0 runs through the parallel double piece (311) with hole at the second end and the single piece (312) with hole at the second end. The single piece (312) with hole at the second end of one end of the semi-annular cylindrical clamping block (31) with external ear is embedded in the middle of the parallel double piece (311) with hole at the second end of one end of the semi-annular cylindrical clamping block (31) with external ear. Then the single piece (312) with hole at the second end of the other end of the semi-annular cylindrical clamping block (31) with external ear is also embedded in the middle of the parallel double piece (311) with hole at the second end of the semi-annular cylindrical clamping block (31) with external ear, forming the second flange (30). The elastic sealing ring (10) is located between two large-diameter cable protection pipes. The first flange (20) is fitted into one end of the first large-diameter cable protection pipe. The first outer ear (213) is the support of the first large-diameter cable protection pipe. The first bolt (22) passes through the first bolt hole (214) and contacts and locks the surface of the first large-diameter cable protection pipe. The second flange (30) is fitted into one end of the second large-diameter cable protection pipe. The second outer ear (313) is the support of the second large-diameter cable protection pipe. The second bolt (32) passes through the second bolt hole (314) and contacts and locks the surface of the second large-diameter cable protection pipe. The bolt (40) passes through the 0 bolt hole (0) of the first flange (20) and the 0 bolt hole (0) of the second flange (30) in sequence and is mechanically connected to the nut (50), thus completing the connection between the first large-diameter cable protection pipe and the second cable protection pipe.

2. The large-diameter cable protection pipe joint according to claim 1, characterized in that: The elastic sealing ring (10) is made of a material with elastic properties; the first flange (20) and the second flange (30) are made of rigid plastic material.