PE cable protection pipe

Abstract

The application relates to the technical field of cable protection pipes, and discloses a PE cable protection pipe which comprises a protection pipe body, a moving disc for bearing a cable, a motor for providing traction power, and an electric telescopic rod for fixing the cable; the output end of the motor is fixedly connected with a winding rod, the outer ring of the winding rod is movably wound with a first pulling rope; a plurality of clamping openings for positioning the cable are arranged on the moving disc, the telescopic end of the electric telescopic rod is fixedly connected with a clamping plate, the electric telescopic rod is fixedly installed on the moving disc, and the electric telescopic rod drives the clamping plate to clamp or release the cable through extension and contraction; a plurality of pulling pegs are fixedly connected to the moving disc, and each pulling peg is fixedly connected with a second pulling rope. The automatic traction driven by the motor is adopted, the cable threading efficiency is higher than that of the traditional manual mode, the manual input is greatly reduced, and the construction cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of cable protection pipe technology, specifically a PE cable protection pipe. Background Technology

[0002] As the core carrier of energy and information transmission, the safe operation of cables directly affects the stability of urban functions and the efficiency of industrial production. Traditional cable laying mostly uses direct burial, which makes cables susceptible to soil corrosion, external pressure, and mechanical damage, leading to frequent cable failures. Statistics show that the annual failure rate of unprotected cables reaches 8.7%, while the failure rate can be reduced to below 2.3% after using professional protective pipes. The protective role of protective pipes for cables has become an industry consensus.

[0003] In the current technology, when multiple cables need to be run through the inside of a large cable protection pipe, the cable installation mainly relies on manual operation. Traditional manual methods usually require the cooperation of multiple construction workers. During the operation, the construction workers need to manually pull the cables, which is not only labor-intensive but also inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a PE cable protection pipe that solves the problem mentioned in the background art that cable installation mainly relies on manual operation. Traditional manual methods usually require multiple construction workers to work together. During the operation, the construction workers need to manually pull the cable, which is not only labor-intensive but also inefficient.

[0005] This application provides a PE cable protection pipe, including a protection pipe body, a movable reel for carrying the cable, a motor for providing traction power, and an electric telescopic rod for fixing the cable; The output end of the motor is fixedly connected to a winding rod, and a first pulling rope is movably wound around the outer ring of the winding rod. The movable disk has multiple clamping ports for positioning cables. The telescopic end of the electric telescopic rod is fixedly connected to a clamping plate. The electric telescopic rod is fixedly installed on the movable disk. The extension and retraction of the electric telescopic rod drives the clamping plate to clamp or release the cable. The movable disk is fixedly connected to a plurality of pull bolts, and each pull bolt is fixedly connected to a second pull rope. The free ends of the plurality of second pull ropes are combined and fixedly connected to a first pull rope. The outer ring of the movable disk has multiple recesses, and the inner wall of each recess is rotatably connected to a sliding wheel, which makes rolling contact with the inner wall of the protective tube body.

[0006] By adopting the above technical solution, the cable to be threaded is first placed in the multiple clamping slots of the moving reel. The electric telescopic rod is then activated, causing the clamping plate to clamp the cable until the anti-slip clamping layer at the end of the clamping plate is in close contact with the cable surface, ensuring the cable is securely clamped. The winding frame is then fixedly connected to the upper end of the protective tube body using screws: the screws pass through the first bolt hole of the protective tube body and engage with the threaded second bolt hole at the bottom of the winding frame. The motor output is then activated, driving the winding rod to rotate, which in turn winds up the first pull rope. The winding action of the winding rod transmits tension through the first and second pull ropes. The second pull rope moves the pull bolt, which in turn moves the moving reel along the inner wall of the protective tube body. The sliding wheel in the outer ring recess of the moving reel rolls against the inner wall of the protective tube body, effectively reducing movement resistance and ensuring the moving reel smoothly drives the cable. Finally, the electric telescopic rod retracts, causing the clamping plate to release the cable, completing the subsequent operations. The protective conduit adopts a multi-layered composite structure, providing continuous protection for the cable after installation: the outermost protective layer is an annular corrugated pipe structure with built-in spiral steel wire, which can resist mechanical damage such as external compression and impact; the middle pressure-resistant layer further enhances the structural strength through internal pressure-resistant buffer pads and reinforcing ribs, dispersing the pressure of external forces on the internal cable; the support layer is made of alkali-free glass fiber and resin composite braiding, possessing high strength, lightweight, and corrosion resistance, providing stable structural support for the protective conduit. Simultaneously, the buffer assembly between the inner tube and the support layer absorbs external vibrations: when the protective conduit is subjected to vibration, the buffer spring between the first and second buffer arc plates undergoes elastic deformation, converting vibration energy into elastic potential energy and releasing it, preventing vibration from being transmitted to the internal cable, effectively protecting the safe operation of the cable.

[0007] Optionally, the clamping end of the clamping plate is provided with an anti-slip clamping layer, and the clamping end of the anti-slip clamping layer is provided with anti-slip texture or anti-slip rubber pad to increase the friction between the clamping plate and the cable and prevent the cable from slipping during the traction process.

[0008] By adopting the above technical solution, the anti-slip clamping layer increases friction through anti-slip textures or rubber pads to prevent the cable from slipping and shifting during traction.

[0009] Optionally, the upper end of the protective tube body is provided with a first bolt hole, and a screw is threaded into the first bolt hole; a winding frame is movably connected to the upper end of the protective tube body, and a second bolt hole corresponding to the first bolt hole is provided at the bottom of the winding frame; the threaded end of the screw passes through the first bolt hole and is threaded into the second bolt hole, thereby realizing the detachable fixing of the winding frame and the protective tube body.

[0010] By adopting the above technical solution, the winding frame and the main body of the protective tube can be detachably fixed through screw bolt holes, making installation and disassembly convenient and flexible.

[0011] Optionally, the winding rod is rotatably mounted on the winding frame, and the motor is fixedly mounted on the outer wall of the winding frame.

[0012] By adopting the above technical solution, the motor and the winding rod are integrated into the winding frame, which has a compact structure, provides stable support for traction, and facilitates overall debugging and maintenance.

[0013] Optionally, the protective tube body includes, from the outside to the inside, a protective layer, a pressure-resistant layer, a support layer, and an inner tube.

[0014] By adopting the above technical solution, the main body of the protective tube adopts a multi-layer composite structure, which realizes the functions of protection, pressure resistance and support from the outside to the inside, thus ensuring the safety of the cable.

[0015] Optionally, the protective layer is an annular corrugated pipe structure with built-in spiral steel wire to resist external extrusion and impact; the pressure-resistant layer is provided with pressure-resistant buffer pads and reinforcing ribs to further enhance the pressure resistance of the main body of the protective pipe; the support layer is made of alkali-free glass fiber and resin composite weaving, and forms a high-strength, lightweight and corrosion-resistant support structure through pultrusion or winding processes.

[0016] By adopting the above technical solutions, the corrugated pipe protective layer with built-in spiral steel wire resists external extrusion and impact, the pressure-resistant layer buffer pad and reinforcing ribs enhance the pressure resistance, and the fiberglass resin support layer achieves high strength, lightweight and corrosion resistance.

[0017] Optionally, a buffer assembly is provided between the outer wall of the inner tube and the inner wall of the support layer. The buffer assembly includes a second buffer arc plate fixed to the inner wall of the support layer, a first buffer arc plate fixed to the outer wall of the inner tube, and a buffer spring connected between the first buffer arc plate and the second buffer arc plate.

[0018] By adopting the above technical solution, the buffer assembly between the inner tube and the support layer absorbs vibration through the arc plate and spring, which greatly reduces the impact of external vibration on the internal cable.

[0019] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows: The technical solution of this application improves the efficiency of cable laying compared to traditional manual methods through automated traction driven by a motor. Taking the laying of 100 meters of cable in a conduit as an example, traditional manual labor requires 4-6 people and takes 1 day, while this equipment only requires 2 people to operate and can complete the task in 2 hours, significantly reducing labor input and lowering construction costs. The outermost corrugated pipe protective layer with built-in spiral steel wire can resist extrusion and impact, effectively avoiding damage to the cable from external forces such as construction and geological changes; the middle pressure-resistant layer disperses external forces through buffer pads and reinforcing ribs, providing double physical protection for the cable. The buffer component between the inner tube and the support layer can absorb external vibration energy, preventing cable joints from loosening and insulation layer damage caused by vibration in scenarios such as rail transit and industrial plants, thereby reducing the cable failure rate and reducing subsequent maintenance costs. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of a PE cable protection pipe according to the present invention; Figure 2 This is a schematic diagram of the electric telescopic rod structure for a PE cable protection pipe placement box according to the present invention; Figure 3 This invention relates to a PE cable protection pipe. Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the sliding wheel structure of a PE cable protection pipe according to the present invention; Figure 5 This is a schematic diagram of a buffer spring structure for a PE cable protection pipe according to the present invention; Figure 6 This is a schematic diagram of the second pull rope structure of a PE cable protection pipe according to the present invention.

[0021] In the diagram: 1. Protective tube body; 2. Moving disc; 3. Clamping port; 4. Rewinding frame; 5. Screw; 6. First pull rope; 7. First bolt hole; 8. Second bolt hole; 9. Motor; 10. Rewinding rod; 11. Protective layer; 12. Compression-resistant layer; 13. Clamping plate; 14. Clamping layer; 15. Pull bolt; 16. Second pull rope; 17. Notch; 18. Pulley; 19. Inner tube; 20. First buffer arc plate; 21. Buffer spring; 22. Second buffer arc plate; 23. Support layer; 24. Electric telescopic rod. Detailed Implementation

[0022] Please see Figure 1-6This invention provides a technical solution: a PE cable protection pipe, including a protection pipe body 1, a movable disc 2 for carrying the cable, a motor 9 for providing traction power, and an electric telescopic rod 24 for fixing the cable; the output end of the motor 9 is fixedly connected to a winding rod 10, and a first pulling rope 6 is movably wound around the outer ring of the winding rod 10; the movable disc 2 has multiple clamping ports 3 for positioning the cable, and the telescopic end of the electric telescopic rod 24 is fixedly connected to a clamping plate 13. The electric telescopic rod 24 is fixedly installed on the movable disc 2, and the clamping plate 13 clamps or releases the cable by the telescopic movement of the electric telescopic rod 24; multiple pulling bolts 15 are fixedly connected to the movable disc 2, and a second pulling rope 16 is fixedly connected to each pulling bolt 15. The free ends of the multiple second pulling ropes 16 are combined and fixedly connected to the first pulling rope 6; the outer ring of the movable disc 2 has multiple recesses 17, and a sliding wheel 18 is rotatably connected to the inner wall of each recess 17. The sliding wheel 18 rolls in contact with the inner wall of the protection pipe body 1.

[0023] In the above technical solution, the cable to be threaded is first placed in the multiple clamping ports 3 of the moving plate 2. The electric telescopic rod 24 is started, which drives the clamping plate 13 to clamp the cable until the anti-slip clamping layer 14 at the end of the clamping plate 13 is in close contact with the cable surface to ensure that the cable is firmly clamped. The winding frame 4 is fixedly connected to the upper end of the protective tube body 1 by screws 5: the screws 5 pass through the first bolt port 7 of the protective tube body 1 and are threaded into the second bolt port 8 at the bottom of the winding frame 4. The output end of the motor 9 is started to drive the winding rod 10 to rotate, and the winding rod 10 winds up the first pulling rope 6. The winding action of the winding rod 10 transmits tension through the first pulling rope 6 and the second pulling rope 16. The second pulling rope 16 drives the pulling bolt 15 to move, and the pulling bolt 15 drives the moving disc 2 to move along the inner wall of the protective tube body 1. The sliding wheel 18 in the outer ring recess 17 of the moving disc 2 rolls in contact with the inner wall of the protective tube body 1, effectively reducing the moving resistance and ensuring that the moving disc 2 drives the cable smoothly. The electric telescopic rod 24 retracts to drive the clamping plate 13 to release the cable, completing the subsequent operation. The protective tube body 1 adopts a multi-layer composite structure to continuously protect the cable after it is installed: the outermost protective layer 11 is an annular corrugated pipe structure with built-in spiral steel wire, which can resist mechanical damage such as external compression and impact; the middle pressure-resistant layer 12 further improves the structural strength through internal pressure-resistant buffer pads and reinforcing ribs, and disperses the pressure of external forces on the internal cable; the support layer 23 is made of alkali-free glass fiber and resin composite weaving, which has high strength, light weight and corrosion resistance, and provides stable structural support for the protective tube. Meanwhile, the buffer assembly between the inner tube 19 and the support layer 23 can absorb external vibrations: when the protective tube is vibrated, the buffer spring 21 between the first buffer arc plate 20 and the second buffer arc plate 22 will undergo elastic deformation, converting the vibration energy into elastic potential energy and releasing it, thus preventing the vibration from being transmitted to the internal cable and effectively protecting the safe operation of the cable.

[0024] In the technical solution of this invention, such as Figure 4 As shown, the clamping end of the clamping plate 13 is provided with an anti-slip clamping layer 14. The clamping end of the anti-slip clamping layer 14 is provided with anti-slip textures or anti-slip rubber pads to increase the friction between the cable and the cable and prevent the cable from slipping during the traction process. The anti-slip clamping layer 14 increases the friction through anti-slip textures or rubber pads to prevent the cable from slipping and shifting during traction.

[0025] In the technical solution of the present invention, such as Figure 3 As shown, the upper end of the protective tube body 1 is provided with a first bolt hole 7, and a screw 5 is threaded into the first bolt hole 7. A winding frame 4 is movably connected to the upper end of the protective tube body 1. The bottom of the winding frame 4 is provided with a second bolt hole 8 corresponding to the first bolt hole 7. The threaded end of the screw 5 passes through the first bolt hole 7 and is threaded into the second bolt hole 8, so as to realize the detachable fixation of the winding frame 4 and the protective tube body 1. The winding frame 4 and the protective tube body 1 are detachably fixed through the bolt hole of the screw 5, which makes installation and disassembly convenient and flexible.

[0026] In the technical solution of this invention, such as Figure 3 As shown, the winding rod 10 is rotatably mounted on the winding frame 4, and the motor 9 is fixedly mounted on the outer wall of the winding frame 4. The motor 9 and the winding rod 10 are integrated into the winding frame 4, which has a compact structure, provides stable support for traction, and facilitates overall debugging and maintenance.

[0027] In the technical solution of the present invention, such as Figure 5 As shown, the main body of the protective tube 1 includes, from the outside to the inside, a protective layer 11, a pressure-resistant layer 12, a support layer 23, and an inner tube 19. The main body of the protective tube 1 adopts a multi-layer composite structure, which achieves protection, pressure resistance, and support functions from the outside to the inside, ensuring the safety of the cable.

[0028] In the technical solution of this invention, such as Figure 5 As shown, the protective layer 11 is an annular corrugated pipe structure with built-in spiral steel wire, used to resist external extrusion and impact; the pressure-resistant layer 12 is provided with pressure-resistant buffer pads and reinforcing ribs to further enhance the pressure resistance of the protective pipe body 1; the support layer 23 is made of alkali-free glass fiber and resin composite weaving, and forms a high-strength, lightweight and corrosion-resistant support structure through pultrusion or winding process. The corrugated pipe protective layer 11 with built-in spiral steel wire resists external extrusion and impact, the pressure-resistant layer 12 buffer pads and reinforcing ribs enhance the pressure resistance, and the glass fiber resin support layer 23 achieves high strength, lightweight and corrosion resistance.

[0029] In the technical solution of the present invention, such as Figure 5As shown, a buffer assembly is provided between the outer wall of the inner tube 19 and the inner wall of the support layer 23. The buffer assembly includes a second buffer arc plate 22 fixed to the inner wall of the support layer 23, a first buffer arc plate 20 fixed to the outer wall of the inner tube 19, and a buffer spring 21 connected between the first buffer arc plate 20 and the second buffer arc plate 22. The buffer assembly between the inner tube 19 and the support layer 23 absorbs vibration through the arc plate and the spring, greatly reducing the impact of external vibration on the internal cable.

[0030] In use, first place the cable to be threaded into the multiple clamping ports 3 of the moving reel 2, start the electric telescopic rod 24 to drive the clamping plate 13 to clamp the cable until the anti-slip clamping layer 14 at the end of the clamping plate 13 is in close contact with the cable surface to ensure that the cable is firmly clamped. Then, fix the winding frame 4 to the upper end of the protective tube body 1 with screws 5: the screws 5 pass through the first bolt port 7 of the protective tube body 1 and are threaded into the second bolt port 8 at the bottom of the winding frame 4. Start the output end of the motor 9 to drive the winding rod 10 to rotate, and the winding rod 10 winds up the first pulling rope 6. The winding action of the winding rod 10 transmits tension through the first pulling rope 6 and the second pulling rope 16. The second pulling rope 16 drives the pulling bolt 15 to move, and the pulling bolt 15 drives the moving disc 2 to move along the inner wall of the protective tube body 1. The sliding wheel 18 in the outer ring recess 17 of the moving disc 2 rolls in contact with the inner wall of the protective tube body 1, effectively reducing the moving resistance and ensuring that the moving disc 2 drives the cable smoothly. The electric telescopic rod 24 retracts to drive the clamping plate 13 to release the cable, completing the subsequent operation. The protective tube body 1 adopts a multi-layer composite structure to continuously protect the cable after it is installed: the outermost protective layer 11 is an annular corrugated pipe structure with built-in spiral steel wire, which can resist mechanical damage such as external compression and impact; the middle pressure-resistant layer 12 further improves the structural strength through internal pressure-resistant buffer pads and reinforcing ribs, and disperses the pressure of external forces on the internal cable; the support layer 23 is made of alkali-free glass fiber and resin composite weaving, which has high strength, light weight and corrosion resistance, and provides stable structural support for the protective tube. Meanwhile, the buffer assembly between the inner tube 19 and the support layer 23 can absorb external vibrations: when the protective tube is vibrated, the buffer spring 21 between the first buffer arc plate 20 and the second buffer arc plate 22 will undergo elastic deformation, converting the vibration energy into elastic potential energy and releasing it, thus preventing the vibration from being transmitted to the internal cable and effectively protecting the safe operation of the cable.

Claims

1. A PE cable protection pipe, characterized in that: It includes a protective tube body (1), a movable disc (2) for carrying the cable, a motor (9) for providing traction power, and an electric telescopic rod (24) for fixing the cable. The output end of the motor (9) is fixedly connected to a winding rod (10), and a first pulling rope (6) is movably wound around the outer ring of the winding rod (10). The movable disk (2) is provided with multiple clamping ports (3) for positioning cables. The telescopic end of the electric telescopic rod (24) is fixedly connected to a clamping plate (13). The electric telescopic rod (24) is fixedly installed on the movable disk (2). The telescopic rod (24) drives the clamping plate (13) to clamp or release the cable through telescopic movement. The movable disk (2) is fixedly connected to a plurality of pull bolts (15), and each pull bolt (15) is fixedly connected to a second pull rope (16). The free ends of the plurality of second pull ropes (16) are combined and fixedly connected to the first pull rope (6). The outer ring of the movable disk (2) has multiple recesses (17), and the inner wall of each recess (17) is rotatably connected to a sliding wheel (18), which makes rolling contact with the inner wall of the protective tube body (1).

2. The PE cable protection pipe according to claim 1, characterized in that, The clamping end of the clamping plate (13) is provided with an anti-slip clamping layer (14), and the clamping end of the anti-slip clamping layer (14) is provided with anti-slip texture or anti-slip rubber pad to increase the friction between the cable and the cable and prevent the cable from slipping during the traction process.

3. The PE cable protection pipe according to claim 1, characterized in that, The upper end of the protective tube body (1) is provided with a first bolt hole (7), and a screw (5) is threaded into the first bolt hole (7). The upper end of the protective tube body (1) is movably connected to a winding frame (4). The bottom of the winding frame (4) is provided with a second bolt hole (8) corresponding to the first bolt hole (7). The threaded end of the screw (5) passes through the first bolt hole (7) and is threadedly connected to the second bolt hole (8), so as to realize the detachable fixing of the winding frame (4) and the protective tube body (1).

4. A PE cable protection pipe according to claim 1, characterized in that, The winding rod (10) is rotatably mounted on the winding frame (4), and the motor (9) is fixedly mounted on the outer wall of the winding frame (4).

5. A PE cable protection pipe according to claim 1, characterized in that, The protective tube body (1) includes, from the outside to the inside, a protective layer (11), a pressure-resistant layer (12), a support layer (23), and an inner tube (19).

6. A PE cable protection pipe according to claim 5, characterized in that, The protective layer (11) is an annular corrugated tube structure with built-in spiral steel wire, which is used to resist external pressure and impact; The pressure-resistant layer (12) is provided with a pressure-resistant buffer pad and reinforcing ribs to further enhance the pressure resistance of the protective pipe body (1); The support layer (23) is made of alkali-free glass fiber and resin composite weaving, and forms a high-strength, lightweight and corrosion-resistant support structure through pultrusion or winding process.

7. A PE cable protection pipe according to claim 5, characterized in that, A buffer assembly is provided between the outer wall of the inner tube (19) and the inner wall of the support layer (23). The buffer assembly includes a second buffer arc plate (22) fixed to the inner wall of the support layer (23), a first buffer arc plate (20) fixed to the outer wall of the inner tube (19), and a buffer spring (21) connected between the first buffer arc plate (20) and the second buffer arc plate (22).

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