Recycled material cpvc electrical power pipe
By introducing curved plates and sleeves with protective structures into CPVC power pipes, the problem of breakage at the connection between the power pipe and the expansion joint is solved, achieving stable connection and sealing of the power pipe, and improving the service life and ease of installation of the power pipe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RONGZHENG PIPE IND CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
AI Technical Summary
The connection between the power conduit and the expansion joint is prone to breakage, which can cause soil to enter the conduit and affect its service life.
A CPVC power pipe made of recycled material is designed, which adopts a protective structure including a curved plate and a sleeve plate. Through the cooperation of the curved plate and the sleeve plate, the expansion pipe is protected, preventing the soil from directly pressing the expansion pipe and enhancing the sealing and stability of the connection.
It effectively prevents breakage at the connection between the power conduit and the expansion joint, improves the service life and installation efficiency of the power conduit, and ensures convenient cable branching and good sealing.
Smart Images

Figure CN224418401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of recycled material CPVC power pipe technology, specifically a recycled material CPVC power pipe. Background Technology
[0002] CPVC power pipes are commonly used as cable protection pipes. This product features high strength, good flexibility, high temperature resistance, corrosion resistance, flame retardancy, good insulation performance, no pollution, not easy to age, light weight, and convenient construction.
[0003] For example, a power conduit with authorization announcement number "CN109412093B" includes a pipe, a fixing groove, a fixing block, a connecting plate, an adsorption layer, and a telescopic pipe. The pipe has a fixing groove, a telescopic pipe, and an adsorption layer. The fixing groove contains a fixing block, and the fixing block has a connecting plate. It is very convenient to use, effectively improving the efficiency of power conduit connection and installation, and effectively preventing the entry of moisture and impurities during installation, greatly improving the efficiency of power conduit installation and its service life. However, in the use of power conduits, the telescopic section uses a corrugated pipe, which has poor strength. Since power conduits are often buried in foundation pits, the telescopic section is subjected to soil pressure. When pedestrians and vehicles pass by, they also press on the ground, transferring force to the telescopic section, increasing the load-bearing capacity of the telescopic section, causing the connection between the power conduit and the telescopic end to break, allowing soil to enter the conduit. Utility Model Content
[0004] The purpose of this invention is to solve the problem of soil entering the power pipe due to breakage at the connection between the power pipe and the telescopic end, and to propose a recycled material CPVC power pipe.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] Design a recycled CPVC power pipe, including a first straight pipe and a round block. The front of the inner wall of the first straight pipe is fixedly connected to the outer wall of the round block. The outer wall of the round block is processed with multiple openings. A protective structure is connected above the rear end face of the first straight pipe. A sheath is connected to the rear of the outer wall of the protective structure.
[0007] This feature allows for branching of cables within the power conduit via openings machined into the outer wall of the circular block, making it easier to identify cables during power conduit disassembly and maintenance.
[0008] Preferably, the protective structure includes a curved plate and a sleeve plate, the front side of the curved plate is fixedly connected to the upper rear end face of the first straight tube, the outer wall of the curved plate is slidably connected to the inner wall of the sleeve plate, and the rear end face of the sleeve plate is fixedly connected to a second straight tube.
[0009] This feature uses a combination of curved plates and sleeve plates to shield and protect the expansion joint, preventing the weight of the soil from acting on it.
[0010] Preferably, the outer wall of the second straight tube is fixedly connected to the inner wall of the sheath at the rear.
[0011] This feature ensures a tight seal between the second straight pipe and the ring by using the rubber material of the sheath behind the outer wall of the second straight pipe.
[0012] Preferably, the rear end face of the first straight pipe is connected to a telescopic pipe.
[0013] In this setting, the telescopic tube is a corrugated tube, and the length of the first straight tube can be adjusted by stretching or shortening the corrugated tube.
[0014] Preferably, the rear end face of the telescopic tube is connected to the front face of the second straight tube.
[0015] This feature allows the telescopic tube to be stretched backward by pulling the second straight tube backward, and the telescopic tube to be shortened by moving the second straight tube forward.
[0016] Preferably, a circular ring is fixed to the front of the outer wall of the first straight tube.
[0017] With this feature, a second straight pipe can be inserted into the inner wall of the ring, allowing the ends of the two power pipes to be connected.
[0018] The beneficial effects of the CPVC power pipe made of recycled material proposed in this utility model are as follows: as the second straight pipe in the protective structure moves back and forth, the sleeve plate slides back and forth on the outer wall of the curved plate. The curved plate and the sleeve plate will change with the length of the telescopic pipe. At the same time, the curved plate and the sleeve plate will shield and protect the top of the telescopic pipe, preventing soil from directly pressing the telescopic pipe, preventing the connection between the power pipe and the telescopic end from breaking, and avoiding soil from entering the inside of the power pipe. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the first straight pipe, the telescopic pipe, and the second straight pipe.
[0021] Figure 3 for Figure 1 A schematic diagram showing the connection structure between the middle curved plate and the sleeve plate;
[0022] Figure 4 for Figure 1 A schematic diagram showing the connection between the central circular block and the through-hole.
[0023] In the diagram: 1. First straight pipe, 2. Protective structure, 201. Curved plate, 202. Sleeve plate, 203. Second straight pipe, 3. Sheath, 4. Ring, 5. Circular block, 6. Through port, 7. Telescopic pipe. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings:
[0025] Please see Figure 1-4 In this embodiment, a recycled CPVC power pipe includes a first straight pipe 1 and a circular block 5. The front of the inner wall of the first straight pipe 1 is fixedly connected to the outer wall of the circular block 5. The outer wall of the circular block 5 is processed with multiple openings 6. The openings on the outer wall of the circular block 5 can realize the branching of multiple cables. A protective structure 2 is connected above the rear end face of the first straight pipe 1. A sheath 3 is connected behind the outer wall of the protective structure 2. The sheath 3 is a rubber sleeve.
[0026] The protective structure 2 includes a curved plate 201 and a sleeve plate 202. The front of the curved plate 201 is fixedly connected to the upper rear end face of the first straight pipe 1. The outer wall of the curved plate 201 is slidably connected to the inner wall of the sleeve plate 202. The sleeve plate 202 slides back and forth through the outer wall of the curved plate 201 under force. The rear end face of the sleeve plate 202 is fixedly connected to a second straight pipe 203. The rear of the outer wall of the second straight pipe 203 is fixedly connected to the inner wall of the sheath 3. The rear of the outer wall of the second straight pipe 203 and the sheath 3 can be inserted into the ring 4.
[0027] As the second straight pipe 203 in the protective structure 2 moves back and forth, the sleeve 202 slides back and forth on the outer wall of the curved plate 1. The curved plate 201 and the sleeve 202 will change with the length of the telescopic pipe 7. At the same time, the curved plate 201 and the sleeve 202 will shield and protect the top of the telescopic pipe 7, prevent the soil from directly pressing the telescopic pipe 7, prevent the connection between the power pipe and the telescopic end from breaking, and prevent soil from entering the inside of the power pipe.
[0028] The rear end face of the first straight pipe 1 is connected to a telescopic pipe 7, which is a corrugated pipe. The rear end face of the telescopic pipe 7 is connected to the front face of the second straight pipe 203. A circular ring 4 is fixed to the front of the outer wall of the first straight pipe 1.
[0029] Working principle:
[0030] Power pipe connection:
[0031] Multiple power conduits are placed into the pit. Then, the cables are passed through the opening 6 on the outer wall of the circular block 5. At this point, the joints of the multiple power conduits will form a branch line, which will facilitate the separation of the power conduits and the identification of the cables for maintenance later. Then, the second straight pipe 203 of the front power conduit is inserted into the inner wall of the circular ring 4 at the front end of the rear power conduit. At this time, the sheath 3 will be inserted into the circular ring 4 to complete the connection of the power conduits. At the same time, the sheath 3, through its own rubber material, can ensure the seal at the connection between the second straight pipe 203 and the circular ring 4. Except for the sheath 3, the structure inside the power conduit is made of CPVC material (chlorinated polyvinyl chloride renewable material).
[0032] Expansion joint installation of power conduits:
[0033] When the power pipe is spliced and becomes too long or too short, the second straight pipe 203 can be pulled backward. The second straight pipe 203, along with the telescopic pipe 7 (the telescopic pipe 7 is a corrugated pipe), is pulled backward to lengthen the power pipe when it is too short. The second straight pipe 203 is then pushed forward, compressing the telescopic pipe 7 as a whole to shorten the length of the power pipe. While the second straight pipe 203 moves back and forth, the sleeve plate 202 slides back and forth on the outer wall of the curved plate 1. The curved plate 201 and the sleeve plate 202 will change with the length of the telescopic pipe 7. At the same time, the curved plate 201 and the sleeve plate 202 will shield and protect the top of the telescopic pipe 7 to prevent the soil from directly pressing on the telescopic pipe 7 and to avoid breakage at the connection between the telescopic pipe 7 and the straight pipe.
[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A recycled material CPVC electrical power pipe comprising a first straight pipe (1) and a round block (5), characterized in that: The inner wall of the first straight tube (1) is fixedly connected to the outer wall of the round block (5). The outer wall of the round block (5) is processed with multiple openings (6). A protective structure (2) is connected above the rear end face of the first straight tube (1). A protective sleeve (3) is connected to the rear of the outer wall of the protective structure (2). The protective structure (2) includes a curved plate (201) and a sleeve plate (202). The front side of the curved plate (201) is fixedly connected to the upper rear end face of the first straight pipe (1). The outer wall of the curved plate (201) is slidably connected to the inner wall of the sleeve plate (202). The rear end face of the sleeve plate (202) is fixedly connected to a second straight pipe (203).
2. The recycled material CPVC electrical power pipe according to claim 1, characterized in that: The outer wall of the second straight pipe (203) is fixedly connected to the inner wall of the sheath (3) at the rear.
3. The recycled CPVC power pipe according to claim 2, characterized in that: The rear end face of the first straight pipe (1) is connected to a telescopic pipe (7).
4. The recycled CPVC power pipe according to claim 3, characterized in that: The rear end face of the telescopic tube (7) is connected to the front face of the second straight tube (203).
5. The recycled CPVC power pipe according to claim 1, characterized in that: A circular ring (4) is fixed to the front of the outer wall of the first straight pipe (1).