Composite cable protection pipe

Abstract

The utility model relates to cable protection pipe technical field, and disclose a kind of composite cable protection pipe, including first protection pipe main body and second protection pipe main body, the right side surface of first protection pipe main body is equipped with connecting block, multiple clamping mechanisms are provided in the inside of connecting block, clamping mechanism includes telescopic link installed in the inside of connecting block.The utility model is equipped with the clamping mechanism of clamping bead and the clamping groove adaptation, buffer support with telescopic link and spring, the stable and close connection of first protection pipe main body and second protection pipe main body is realized, installation dismounting does not need complex tool, can substantially improve construction efficiency, reduce maintenance cost, in urban pipe network, industrial plant and open-air engineering etc. Scene, can provide reliable and long-acting protection for cable, the contact surface design of clamping mechanism can enhance friction and stability, while supporting modularization splicing, and main body material is environment-friendly, transport is light, while having sustainability advantage when guaranteeing cable safety.

Description

Technical Field

[0001] This utility model relates to the field of cable protection pipe technology, specifically a composite cable protection pipe. Background Technology

[0002] In modern power transmission systems, cable protection pipes (also known as cable conduits, power cable conduits, cement cable conduits, power ducts, power cable protection pipes, etc.) are key infrastructure for ensuring the safe and stable operation of power cables. Their performance and quality directly affect the reliability and service life of the power system. With the acceleration of urbanization, the continuous expansion of the power grid, and the emergence of various complex engineering scenarios, such as the construction of urban underground integrated pipe corridors, power laying along highways and railways, and power supporting projects in industrial parks, more stringent requirements have been placed on the performance of cable protection pipes.

[0003] However, existing cable protection pipes are usually fixed by bolt connection or heat fusion. This connection method has inconveniences in actual operation. It is not convenient to quickly connect and disassemble the protection pipe, and it will also affect the construction progress and efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a composite cable protection pipe that facilitates the connection and disassembly of the pipe, and can effectively ensure the progress and efficiency of construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite cable protection pipe, comprising a first protection pipe body and a second protection pipe body, wherein a connecting block is installed on the right side of the first protection pipe body, and multiple locking mechanisms are provided inside the connecting block, wherein the locking mechanism includes a telescopic rod installed inside the connecting block, a spring is sleeved on the outer surface of the telescopic rod, a movable plate is installed at the telescopic end of the telescopic rod, two sliders are connected to the outer surface of the movable plate, a connecting rod is installed on the upper surface of the movable plate, and a locking bead is installed at the top end of the connecting rod.

[0006] Preferably, the connecting block has multiple sliding grooves inside, and the outer surface of each slider is slidably connected to the inside of the sliding groove. The second protective tube body is located on the right side of the first protective tube body, and the left side of the second protective tube body is provided with an installation groove. The installation groove has multiple slots inside that are adapted to the locking beads.

[0007] Preferably, both the first protective tube body and the second protective tube body have an inner layer, an insulating layer, a flame-retardant layer and an outer layer inside.

[0008] Preferably, the inner layer is made of ultra-high molecular weight polyethylene.

[0009] Preferably, the insulating layer uses polytetrafluoroethylene as the insulating layer material.

[0010] Preferably, the flame-retardant layer is made of flame-retardant glass fiber reinforced unsaturated polyester resin composite material.

[0011] Preferably, the outer layer is made of chlorinated polyvinyl chloride.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves a stable and tight connection between the first and second protective tube bodies through a snap-fit ​​mechanism that matches the snap-fit ​​beads and slots, combined with the buffer support of the telescopic rod and spring. Installation and disassembly require no complicated tools, which can significantly improve construction efficiency and reduce maintenance costs. In urban pipe networks, industrial plants, and field engineering scenarios, it can provide reliable and long-term protection for cables. The contact surface design of the snap-fit ​​mechanism can enhance friction and stability, and the materials used are corrosion-resistant and fatigue-resistant, extending service life. At the same time, it supports modular splicing, and the main body materials are environmentally friendly and easy to transport, ensuring cable safety while also having sustainability advantages. Attached Figure Description

[0013] Figure 1 A left view of a composite cable protection tube provided by this utility model; Figure 2 Right view of a composite cable protection tube provided by this utility model; Figure 3 A three-dimensional structural diagram of a snap-fit ​​mechanism in a composite cable protection pipe provided by this utility model; Figure 4 The composite cable protection pipe provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the internal structure of a composite cable protection pipe provided by this utility model.

[0014] In the diagram: 1. First protective tube body; 2. Connecting block; 3. Snap-fit ​​mechanism; 301. Telescopic rod; 302. Spring; 303. Movable plate; 304. Slider; 305. Connecting rod; 306. Snap ball; 4. Slide groove; 5. Second protective tube body; 6. Mounting groove; 7. Snap-fit ​​groove; 8. Inner layer; 9. Insulation layer; 10. Flame retardant layer; 11. Outer layer. Detailed Implementation

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

[0016] Please see Figure 1-5 As shown, a composite cable protection pipe includes a first protection pipe body 1 and a second protection pipe body 5. A connecting block 2 is installed on the right side of the first protection pipe body 1. Multiple locking mechanisms 3 are provided inside the connecting block 2. Each locking mechanism 3 includes a telescopic rod 301 installed inside the connecting block 2. A spring 302 is sleeved on the outer surface of the telescopic rod 301. A movable plate 303 is installed at the telescopic end of the telescopic rod 301. Two sliders 304 are connected to the outer surface of the movable plate 303. A connecting rod 305 is installed on the upper surface of the movable plate 303. The top of the connecting rod 305 is equipped with a retaining bead 306. The telescopic rod 301 is fitted with a spring 302. The movable plate 303 at its telescopic end slides against the inner wall of the connecting block 2 through a slider 304. The retaining bead 306 is fixed at the top of the connecting rod 305 above the movable plate 303. When the second protective tube body 5 is connected to the connecting block 2, the retaining bead 306 is squeezed, causing the telescopic rod 301 to compress the spring 302. After entering the corresponding slot 7, the spring 302 returns to its original position, and the retaining bead 306 is embedded in the slot 7 to achieve locking. The structure is compact and easy to assemble and disassemble.

[0017] The connecting block 2 has multiple sliding grooves 4 inside, and the outer surface of each slider 304 is slidably connected to the inside of the sliding groove 4. The second protective tube body 5 is located on the right side of the first protective tube body 1, and the left side of the second protective tube body 5 is provided with an installation groove 6. The installation groove 6 has multiple slots 7 that are adapted to the locking bead 306 inside.

[0018] Preferably, the interior of the first protective tube body 1 and the second protective tube body 5 are provided with an inner layer 8, an insulating layer 9, a flame-retardant layer 10 and an outer layer 11.

[0019] The inner layer 8 is made of ultra-high molecular weight polyethylene (UHMWPE). UHMWPE has an extremely low coefficient of friction, which can significantly reduce the resistance of the cable through the conduit and reduce the wear of the cable sheath.

[0020] The insulation layer 9 uses polytetrafluoroethylene as the insulation material. Polytetrafluoroethylene has extremely low dielectric constant and dielectric loss factor, excellent insulation performance, and can maintain stable insulation within a certain temperature range.

[0021] The flame retardant layer 10 is made of flame retardant glass fiber reinforced unsaturated polyester resin composite material. The flame retardant glass fiber reinforced unsaturated polyester resin composite material has a high-efficiency flame retardant added to the glass fiber reinforced plastic, which greatly improves its oxygen index and has excellent flame retardant performance.

[0022] The outer layer 11 is made of chlorinated polyvinyl chloride, which has excellent weather resistance, chemical corrosion resistance and UV resistance, and can withstand long-term exposure to wind and sun, rain erosion and chemical corrosion.

[0023] Working principle: When installing the composite cable protection pipe, the first protection pipe body 1 is connected to the second protection pipe body 5. Pushing the second protection pipe body 5 closer to the first protection pipe body 1 activates the locking mechanism 3 within the connecting block 2. The locking bead 306, compressed by the second protection pipe body 5, moves the connecting rod 305 and the movable plate 303 into the connecting block 2. The telescopic rod 301 retracts, and the spring 302 is compressed. Simultaneously, the slider 304 on the movable plate 303 slides within the groove 4, ensuring smooth movement of the locking mechanism 3. When the locking groove 7 on the second protection pipe body 5 aligns with the locking bead 306, the elastic potential energy of the spring 302 is released, pushing the movable plate 303 back to its original position. The telescopic rod 301 extends, and the locking bead 306 embeds into the locking groove 7. A stable connection is achieved between the first protective tube body 1 and the second protective tube body 5. In terms of cable protection, the layered structure of the first protective tube body 1 and the second protective tube body 5 each perform their respective functions. The inner layer 8 is made of ultra-high molecular weight polyethylene, which has good wear resistance and self-lubricating properties, and can effectively reduce the friction between the cable and the inner wall of the protective tube. The insulation layer 9 is made of polytetrafluoroethylene, which has excellent electrical insulation properties and prevents current leakage. The flame retardant layer 10 uses flame retardant glass fiber reinforced unsaturated polyester resin composite material, which can prevent the spread of flames and reduce the risk of fire when exposed to fire. The outer layer 11 is made of chlorinated polyvinyl chloride, which has high strength and corrosion resistance, and can resist external physical impact and chemical corrosion, providing comprehensive protection for the safe and stable operation of the cable.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] 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 composite cable protection pipe comprising a first protection pipe body (1) and a second protection pipe body (5), characterized in that, A connecting block (2) is installed on the right side of the first protective tube body (1). Multiple snap-fit ​​mechanisms (3) are provided inside the connecting block (2). The snap-fit ​​mechanism (3) includes a telescopic rod (301) installed inside the connecting block (2). A spring (302) is sleeved on the outer surface of the telescopic rod (301). A movable plate (303) is installed at the telescopic end of the telescopic rod (301). Two sliders (304) are connected to the outer surface of the movable plate (303). A connecting rod (305) is installed on the upper surface of the movable plate (303). A locking bead (306) is installed at the top of the connecting rod (305).

2. A composite cable protection tube according to claim 1, characterised in that: The connecting block (2) has multiple sliding grooves (4) inside, and the outer surface of each slider (304) is slidably connected to the inside of the sliding groove (4). The second protective tube body (5) is located on the right side of the first protective tube body (1), and the left side of the second protective tube body (5) is provided with an installation groove (6). The installation groove (6) has multiple slots (7) inside that are compatible with the locking bead (306).

3. A composite cable protection pipe according to claim 1, characterised in that: The first protective tube body (1) and the second protective tube body (5) are each provided with an inner layer (8), an insulating layer (9), a flame retardant layer (10) and an outer layer (11).

4. A composite cable protection pipe according to claim 3, characterised in that: The inner layer (8) is made of ultra-high molecular weight polyethylene.

5. A composite cable protection pipe according to claim 3, characterized in that: The insulating layer (9) is made of polytetrafluoroethylene.

6. A composite cable protection pipe according to claim 3, characterized in that: The flame retardant layer (10) is made of flame retardant glass fiber reinforced unsaturated polyester resin composite material.

7. A composite cable protection pipe according to claim 3, characterized in that: The outer layer (11) is made of chlorinated polyvinyl chloride.

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