A CPVC power cable protection pipe with connecting components

CN224709334UActive Publication Date: 2026-09-01JIANGSU FANGZHENG PLASTIC CO LTD
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Patent Information

Application Number
CN202522092820.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-09-01
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

现有保护管连接方式多采用胶水粘接或简单套接,胶水粘接存在固化时间长、受环境温度影响大且长期使用易老化脱落的问题;简单套接则连接稳定性差,易出现松动,导致雨水、泥沙渗入管内,损坏电缆,影响电力传输安全

Benefits of technology

1.通过设置的连接头与管体螺纹连接,达到活动连接状态,使两侧连接头能够被拆分,便于操作人员在CPVC电力电缆保护管连接末端对CPVC电力电缆保护管和使用器材进行连接,快速的达到稳定连接的状态,通过设置的弹性连接爪便于收缩使进入管体内部的电缆电线不易晃动位移,达到稳定连接的状态;

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a CPVC power cable protection pipe with connecting components, including a pipe body and connectors. Two sets of connectors are symmetrically arranged, and the pipe body is threaded between the two sets of connectors. One side of each connector is threaded to the pipe body, and the other side of each connector has symmetrically arranged elastic connecting claws. An inner tube is provided inside the pipe body, and a heat insulation mesh is attached to the outer surface of the inner tube. A reinforcing tube is provided outside the heat insulation mesh, with its inner surface attached to the heat insulation mesh and its outer surface attached to the inner wall of the pipe body. Branching tubes are symmetrically arranged on both sides of the inner tube to divide the cables inside the inner tube and prevent tangling. Internal threads are symmetrically arranged on both sides of the pipe body, and external threads are provided on the inner wall of the connector. The external threads engage with the internal threads, facilitating quick and stable connection between the cable protection pipe and the equipment used by the operator.
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Description

Technical Field

[0001] This utility model relates to the field of power cable protection pipe technology, specifically a CPVC power cable protection pipe with connecting components. Background Technology

[0002] Power cables need to be laid underground. In order to improve the life of the cables and slow down the aging of the insulation sheath, it is often necessary to isolate the cables from the external environment by using protective pipes to seal the cables and prevent damage from the external environment.

[0003] A CPVC power cable protection pipe, disclosed in patent number CN114400607A, includes an outer pipe body, an inner pipe body, a positioning block, an adjusting screw, a fastening block, and a sealing block. Its key feature is that the outer pipe body has a fixing groove on its outer wall and a positioning groove on its inner wall. The inner pipe body is placed inside the outer pipe body and has an inner hole. A bearing groove is provided on the outer wall of the inner pipe body, and fixing rods are provided on both sides of the bearing groove. The fixing rods on the inner pipe body, through connecting rods, drive the positioning block into the positioning groove, improving the stability of the inner pipe body within the outer pipe body. The power cable is then passed through the cavity between the bearing groove and the fastening block, further enhancing the stability of the power cable and improving its protective effect. Furthermore, by selecting an inner pipe body with a corresponding bearing groove according to different cable sizes, the versatility of the CPVC power cable protection pipe is improved, its application range is expanded, and the cost of manufacturing multiple sets of CPVC power cable protection pipes is reduced.

[0004] However, the above-mentioned device still has the following problems during implementation: In actual construction, it is often necessary to connect multiple protective pipes to meet the required laying length. Existing protective pipe connection methods mostly use glue bonding or simple sleeve joints. Glue bonding has problems such as long curing time, great influence from ambient temperature, and easy aging and detachment after long-term use; simple sleeve joints have poor connection stability, are prone to loosening, and allow rainwater and mud to seep into the pipe, damaging the cable and affecting the safety of power transmission. Utility Model Content

[0005] The purpose of this invention is to provide a CPVC power cable protection pipe with connecting components to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A CPVC power cable protection pipe with connecting components includes a pipe body and connectors. Two sets of connectors are symmetrically arranged. The pipe body is threaded between the two sets of connectors. One side of the connector is threaded to the pipe body, and the other side of the connector is symmetrically provided with elastic connecting claws. An inner tube is provided inside the pipe body. A heat insulation mesh is attached to the outer surface of the inner tube. A reinforcing pipe body is provided outside the heat insulation mesh. The inner surface of the reinforcing tube is attached to the heat insulation mesh, and the outer surface of the reinforcing tube is attached to the inner wall of the tube. The inner tube is symmetrically provided with branch tubes on both sides, and the cables inside the inner tube are divided by the branch tubes to avoid tangling.

[0007] Preferably, the two sides of the tube are symmetrically provided with internal threads, and the inner wall of the connector is provided with external threads, which mesh with the internal threads.

[0008] Preferably, a retaining ring is sleeved on the outer surface of the connector, one side of the elastic connecting claw is movably connected to the inner wall of the retaining ring, a positioning inner groove is provided at the connection between the retaining ring and the elastic connecting claw, and a contact pad is fixedly installed on one side of the outer surface of the elastic connecting claw.

[0009] Preferably, the reinforcing tube body includes multiple sets of connecting composite tubes and reinforcing ribs, the multiple sets of connecting composite tubes are equidistantly sleeved on the outer surface of the heat insulation mesh, and the front and rear ends of the connecting composite tubes are provided with tube heads.

[0010] Preferably, multiple sets of pipe holes are symmetrically and evenly distributed on the multiple sets of connecting pipes and pipe heads, and multiple sets of reinforcing ribs are movably inserted into the interior of the multiple sets of pipe holes.

[0011] Preferably, the branch pipe body includes a fixing ring and a partition strip. The fixing ring is symmetrically arranged at the pipe opening of the inner pipe. Multiple sets of partition strips are installed at equal intervals from the inside to the outside around the axis of the fixing ring. A central plate is provided at the central connection of the partition strips. A connecting rod is fixedly connected to one side of the spindle plate, and a limiting ring is fixedly connected to one end of the connecting rod. The limiting ring is matched with the fixing ring and the separator strip. The limiting ring extends into the interior of the elastic connecting claw, which can support the outer wall of the pipeline inside the elastic connecting claw and prevent it from being squeezed by the elastic connecting claw.

[0012] Compared with existing technologies, the beneficial effects of this utility model are: 1. The connection head is threaded with the pipe body to achieve a movable connection state, allowing the two connector heads to be separated. This makes it easy for operators to connect the CPVC power cable protection pipe and the equipment at the connection end of the CPVC power cable protection pipe, quickly achieving a stable connection state. The elastic connecting claws are designed to retract easily, preventing the cables and wires entering the pipe body from shaking or shifting, thus achieving a stable connection state. 2. Multiple sets of cables are installed through the inner tube. The branch tubes symmetrically arranged on both sides of the inner tube facilitate the partitioning of the cables inside the tube, making it less likely for the cables to tangle and cause short circuits. The heat insulation mesh on the outer wall of the inner tube further increases the heat insulation. The reinforced tube casing further increases the overall stability of the tube and prevents frequent collapses that could cause internal cable compression. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main view structure of this utility model; Figure 2 This is a front view schematic diagram of the connector part of this utility model; Figure 3 This is a schematic diagram of the main structure of the branch conduit body in this utility model; Figure 4 This is a schematic diagram of the main structure of the reinforced tube body of this utility model; Figure 5 This is a schematic diagram of the exploded structure of the tube body in this practical application.

[0014] In the diagram: 1. Pipe body; 2. Connector; 3. Flexible connecting claw; 4. Inner pipe; 5. Insulation mesh; 6. Reinforced pipe body; 601. Connecting combination pipe; 602. Reinforcing rib; 7. Branch pipe body; 701. Fixing ring; 702. Separator strip; 8. Anchoring ring; 9. Contact pad; 10. Pipe head; 11. Pipe hole; 12. Core plate; 13. Connecting rod; 14. Limiting ring. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Please see Figures 1-5 This utility model provides a technical solution: Example 1: A CPVC power cable protection pipe with connecting components includes a pipe body 1 and a connector 2. Two sets of connectors 2 are symmetrically arranged. The pipe body 1 is threaded between the two sets of connectors 2. One side of the connector 2 is threaded to the pipe body 1, and the other side of the connector 2 is symmetrically arranged with elastic connecting claws 3. An inner tube 4 is provided inside the pipe body 1. A heat insulation mesh 5 is attached to the outer surface of the inner tube 4. A reinforcing pipe body 6 is provided outside the heat insulation mesh 5. The inner surface of the reinforced pipe 6 is attached to the heat insulation mesh 5, and the outer surface of the reinforced pipe 6 is attached to the inner wall of the pipe 1. The inner pipe 4 is symmetrically provided with branch pipes 7 on both sides inside, and the cables inside the inner pipe 4 are divided by the branch pipes 7 to avoid tangling. The pipe body 1 is symmetrically provided with internal threads on both sides, and the inner wall of the connector 2 is provided with external threads. The external threads mesh with the internal threads, and the connector 2 is threadedly connected to the pipe body 1 to achieve a movable connection state. This allows the connectors 2 on both sides to be separated, making it convenient for operators to connect the CPVC power cable protection pipe and the equipment at the connection end of the CPVC power cable protection pipe, and quickly achieve a stable connection state. A retaining ring 8 is sleeved on the outer surface of the connector 2. One side of the elastic connecting claw 3 is movably connected to the inner wall of the retaining ring 8. A positioning inner groove is provided at the connection between the retaining ring 8 and the elastic connecting claw 3. A contact soft pad 9 is fixedly installed on one side of the outer surface of the elastic connecting claw 3. The elastic connecting claw 3 is designed to be easy to retract so that the cable and wire entering the tube 1 are not easy to shake or move, thus achieving a stable connection. The reinforcing tube 6 includes multiple sets of connecting pipes 601 and reinforcing ribs 602. The multiple sets of connecting pipes 601 are equidistantly sleeved on the outer surface of the insulation mesh 5. The front and rear ends of the connecting pipes 601 are provided with pipe heads 10. Multiple sets of pipe holes 11 are symmetrically distributed at equal intervals on the multiple sets of connecting pipes 601 and pipe heads 10. The multiple sets of reinforcing ribs 602 are movably inserted into the interior of the multiple sets of pipe holes 11. The sleeve of the reinforcing tube 6 further increases the overall stability of the tube 1 and makes it less likely to collapse frequently, causing internal cable compression.

[0017] Example 2: Based on Embodiment 1, this embodiment details the branch conduit 7 in Embodiment 1. The branch conduit 7 includes a fixing ring 701 and a separator 702. The fixing ring 701 is symmetrically arranged at the opening of the inner tube 4. Multiple sets of separators 702 are installed at equal intervals from the inside to the outside around the axis of the fixing ring 701. A central plate 12 is provided at the central connection of the separators 702. The branch conduit 7 facilitates the partitioning of the cables inside the tube, making it less likely for the cables to tangle together and cause short circuits. A connecting rod 13 is fixedly connected to one side of the spindle plate 12. A limit ring 14 is fixedly connected to one end of the connecting rod 13. The limit ring 14 is matched with the fixing ring 701 and the partition strip 702. The limit ring 14 extends into the interior of the elastic connecting claw 3, which can support the outer wall of the pipeline inside the elastic connecting claw 3 and place it under the pressure of the elastic connecting claw 3.

[0018] Working principle: The connector 2 is threadedly connected to the pipe body 1 to achieve a movable connection state, allowing the connectors 2 on both sides to be separated. This makes it easy for operators to connect the CPVC power cable protection pipe and the equipment at the connection end of the CPVC power cable protection pipe, quickly achieving a stable connection state. The elastic connecting claw 3 is designed to retract easily, preventing the cables and wires inside the pipe body 1 from shaking or shifting, thus achieving a stable connection state. Multiple sets of cables are installed in the inner tube 4. The branch tubes 7 symmetrically arranged on both sides of the inner tube 4 facilitate the partitioning of the cables inside the tube, making it less likely for the cables to tangle together and cause short circuits. The heat insulation mesh 5 on the outer wall of the inner tube 4 further increases the heat insulation. The overall stability of the tube 1 is further increased by the reinforced tube body 6, making it less likely for frequent collapses to cause internal cable compression.

[0019] It should be noted that the heat insulation net 5 is a device or equipment that exists in the prior art, or a device or equipment that can be implemented by the prior art. Its power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail.

[0020] Although embodiments of the present utility 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 utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CPVC power cable protection pipe with connecting components, comprising a pipe body (1) and a connector (2), characterized in that: The connector (2) is symmetrically arranged in two sets. The tube body (1) is threaded between the two sets of connectors (2). One side of the connector (2) is threaded to the tube body (1). The other side of the connector (2) is symmetrically arranged with elastic connecting claws (3). The tube body (1) is provided with an inner tube (4). The outer surface of the inner tube (4) is fitted with a heat insulation mesh (5). The outside of the heat insulation mesh (5) is provided with a reinforcing tube body (6). The inner surface of the reinforcing tube (6) is attached to the heat insulation mesh (5), and the outer surface of the reinforcing tube (6) is attached to the inner wall of the tube (1). The inner tube (4) is symmetrically provided with branch tubes (7) on both sides. The cable inside the inner tube (4) is divided into sections by the branch tubes (7) to avoid tangling.

2. A CPVC power cable protection pipe with connecting components according to claim 1, characterized in that: The tube body (1) is symmetrically provided with internal threads on both sides, and the inner wall of the connector (2) is provided with external threads, which mesh with the internal threads.

3. A CPVC power cable protection pipe with connecting components according to claim 1, characterized in that: The outer surface of the connector (2) is fitted with a retaining ring (8), one side of the elastic connecting claw (3) is movably connected to the inner wall of the retaining ring (8), a positioning inner groove is provided at the connection between the retaining ring (8) and the elastic connecting claw (3), and a contact pad (9) is fixedly installed on one side of the outer surface of the elastic connecting claw (3).

4. A CPVC power cable protection pipe with connecting components according to claim 1, characterized in that: The reinforcing tube (6) includes multiple sets of connecting combination tubes (601) and reinforcing ribs (602). The multiple sets of connecting combination tubes (601) are equidistantly sleeved on the outer surface of the heat insulation net (5). The front and rear ends of the connecting combination tubes (601) are provided with tube heads (10).

5. A CPVC power cable protection pipe with connecting components according to claim 4, characterized in that: Multiple sets of pipe holes (11) are symmetrically and evenly distributed on the multiple sets of connecting pipes (601) and pipe heads (10), and multiple sets of reinforcing ribs (602) are movably inserted into the interior of the multiple sets of pipe holes (11).

6. A CPVC power cable protection pipe with connecting components according to claim 1, characterized in that: The branch pipe body (7) includes a fixing ring (701) and a partition strip (702). The fixing ring (701) is symmetrically arranged at the pipe opening of the inner pipe (4). Multiple sets of partition strips (702) are installed at equal intervals from the inside to the outside around the axis of the fixing ring (701). A central plate (12) is provided at the central connection of the partition strips (702). A connecting rod (13) is fixedly connected to one side of the spindle plate (12). A limiting ring (14) is fixedly connected to one end of the connecting rod (13). The limiting ring (14) is matched with the fixing ring (701) and the separator (702). The limiting ring (14) extends into the interior of the elastic connecting claw (3) and can support the outer wall of the pipeline inside the elastic connecting claw (3) and place it to be squeezed by the elastic connecting claw (3).