High-strength armored flame-retardant power cables

Abstract

This utility model relates to the field of power cable technology and discloses a high-strength armored flame-retardant power cable, including a power cable body and an insulating sleeve. The surface of the insulating sleeve is wound with steel strip, and a flame-retardant sleeve is fitted onto the surface of the steel strip. The power cable body is installed on the inner wall surface of the insulating sleeve. The power cable body includes a flame-retardant sleeve, and a connecting horizontal plate is fixedly connected to the inner wall surface of the flame-retardant sleeve. A conductor assembly is inserted into the inner wall surface of the flame-retardant sleeve. This high-strength armored flame-retardant power cable, by setting up clamping blocks, limiting inserts, an insulating layer, and a connecting horizontal plate, uses inserts to clamp and fix the clamping blocks and the cylindrical conductor, making it easier to detach the clamping blocks from the flame-retardant sleeve. This allows for quick and convenient replacement of the cylindrical conductor without spending a lot of time, protecting the safety of the cylindrical conductor and the insulating layer. It also facilitates the disassembly and replacement of the clamping blocks and the insulating layer, increasing their service life.

Description

Technical Field

[0001] This utility model relates to the field of power cable technology, specifically to high-strength armored flame-retardant power cables. Background Technology

[0002] High-strength armored flame-retardant power cables are a type of special cable that combines mechanical protection and fire safety features. Their core advantage lies in the synergistic effect of the metal armor layer and flame-retardant materials, enabling the cable to operate safely and stably in complex environments.

[0003] The existing power cables have conductors wrapped and filled in layers to determine their position and ensure a tight connection between them. When replacing a conductor, the entire power cable needs to be cut to replace it, making the replacement process complicated and time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength armored flame-retardant power cable to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength armored flame-retardant power cable, comprising a power cable body and an insulating sleeve, wherein a steel strip is wound around the surface of the insulating sleeve, and a flame-retardant sleeve is fitted onto the surface of the steel strip, and the power cable body is installed on the inner wall surface of the insulating sleeve.

[0006] The main body of the power cable includes a flame-retardant sleeve, a connecting cross plate is fixedly connected to the inner wall surface of the flame-retardant sleeve, and a conductor assembly is inserted into the inner wall surface of the flame-retardant sleeve.

[0007] The conductor assembly includes a clamp, with a plug inserted into one outward end of the clamp and a limiting plug inserted into one outward end of the clamp. An insulating layer is installed at one inward end of the clamp, and a filler layer is filled on the inner wall surface of the insulating layer. A cylindrical conductor is installed on the inner wall of the filler layer. A connecting plug is fixedly connected to one inward end of the clamp, and a flame retardant can be filled between the flame retardant sleeve and the clamp.

[0008] Preferably, the connecting plug is movably connected to the inner wall surface of the connecting horizontal plate, and the connection between the connecting plug and the connecting horizontal plate determines the position of the clamping block and prevents the clamping block from shaking.

[0009] Preferably, the clamping block is inserted into the inner wall surface of the flame-retardant sleeve, and the clamping block is slidably connected to the surface of the connecting horizontal plate. The flame-retardant sleeve and the connecting horizontal plate determine the position of the clamping block and the position of the cylindrical conductor.

[0010] Preferably, the flame-retardant sleeve one is installed on the inner wall surface of the insulating sleeve. The flame-retardant sleeve one, the steel strip, and the flame-retardant sleeve two protect the cylindrical conductor, prevent damage to the cylindrical conductor, and increase the service life of the cylindrical conductor.

[0011] Preferably, the clamping blocks are divided into four groups, and the four groups of clamping blocks are distributed inside the flame-retardant sleeve. One group of clamping blocks clamps and fixes the insulation layer to protect the safety of the insulation layer.

[0012] Preferably, the cylindrical conductor is made of a highly conductive material such as copper or aluminum to ensure power transmission efficiency.

[0013] Preferably, the flame-retardant sleeve is made of cross-linked polyethylene. Cross-linked polyethylene has excellent heat resistance, does not decompose below 200°C, has a thermal life of up to 40 years, and its combustion products are mainly water and carbon dioxide, making it more environmentally friendly.

[0014] Preferably, the clamping blocks are divided into two sets, with five clamping blocks in each set, for a total of ten clamping blocks. The two sets of clamping blocks can hold and fix the insulation layer, thus protecting the safety of the insulation layer.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This high-strength armored flame-retardant power cable is equipped with clamping blocks, limiting plugs, insulation layers, and connecting cross plates. The plug rods clamp and fix the clamping blocks and cylindrical conductors, making it easier to detach the clamping blocks from the flame-retardant sleeve. This makes it quick and convenient to replace the cylindrical conductors without spending a lot of time, protecting the safety of the cylindrical conductors and insulation layers. At the same time, it is convenient to disassemble and replace the clamping blocks and insulation layers, increasing their service life.

[0016] 2. This high-strength armored flame-retardant power cable is equipped with a flame-retardant sleeve, a clamping block, and an insulation layer. The clamping block is inserted into the inner wall surface of the flame-retardant sleeve and the connecting cross plate, which can clamp and fix the insulation layer, thus protecting the safety of the insulation layer and the cylindrical conductor. At the same time, flame retardant can be filled between the flame-retardant sleeve and the insulation layer to protect the safety of the cylindrical conductor. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the entire utility model; Figure 2 This is a three-dimensional schematic diagram of the main steel strip and insulating sleeve of the power cable of this utility model; Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the diagram; Figure 4 This is a three-dimensional schematic diagram of the main body of the power cable of this utility model; Figure 5 This is a three-dimensional schematic diagram of the conductor assembly of this utility model.

[0018] In the diagram: 1. Main body of power cable; 11. Flame-retardant sleeve one; 12. Connecting horizontal plate; 13. Conductor assembly; 131. Clamping block; 132. Insert rod; 133. Limiting insert block; 134. Insulation layer; 135. Connecting insert block; 136. Filling layer; 137. Cylindrical conductor; 2. Flame-retardant sleeve two; 3. Steel strip; 4. Insulation sleeve. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 The present invention provides the following technical solution: The high-strength armored flame-retardant power cable includes a power cable body 1 and an insulating sleeve 4. The surface of the insulating sleeve 4 is wrapped with a steel strip 3, and the surface of the steel strip 3 is fitted with a flame-retardant sleeve 2. The flame-retardant sleeve 2 is made of cross-linked polyethylene. Cross-linked polyethylene has excellent heat resistance, does not decompose below 200℃, has a thermal life of up to 40 years, and its combustion products are mainly water and carbon dioxide, making it more environmentally friendly. The power cable body 1 is installed on the inner wall surface of the insulating sleeve 4.

[0021] The main body 1 of the power cable includes a flame-retardant sleeve 11, a connecting cross plate 12 is fixedly connected to the inner wall surface of the flame-retardant sleeve 11, and a conductor assembly 13 is inserted into the inner wall surface of the flame-retardant sleeve 11.

[0022] The conductor assembly 13 includes a clamp 131, with a plug rod 132 inserted into one outward end of the clamp 131, and a limit plug 133 inserted into one outward end of the clamp 131. An insulating layer 134 is installed on the inward end of the clamping block 131. A set of clamping blocks 131 is divided into two sets, with five clamping blocks in each set, for a total of ten. The two sets of clamping blocks 131 can hold and fix the insulating layer 134, thus protecting the safety of the insulating layer 134. The clamping blocks 131 are divided into four groups, which are distributed inside the flame-retardant sleeve 11. One set of clamping blocks 131 holds and fixes the insulating layer 134, thus protecting the safety of the insulating layer 134. The inner wall surface of the insulation layer 134 is filled with a filling layer 136. A cylindrical conductor 137 is installed on the inner wall of the filling layer 136. The clamping block 131 is inserted into the inner wall surface of the flame-retardant sleeve 11. The clamping block 131 is slidably connected to the surface of the connecting horizontal plate 12. The flame-retardant sleeve 11 and the connecting horizontal plate 12 determine the position of the clamping block 131 and the position of the cylindrical conductor 137. The cylindrical conductor 137 is made of highly conductive materials such as copper or aluminum to ensure power transmission efficiency. The flame-retardant sleeve 11 is installed on the inner wall surface of the insulation sleeve 4. The flame-retardant sleeve 11, the steel strip 3 and the flame-retardant sleeve 2 protect the cylindrical conductor 137 to prevent damage to the cylindrical conductor 137 and increase the service life of the cylindrical conductor 137. A connecting plug 135 is fixedly connected to one inward end of the clamping block 131. The connecting plug 135 is movably connected to the inner wall surface of the connecting horizontal plate 12. The connecting plug 135 and the connecting horizontal plate 12 are connected to determine the position of the clamping block 131 and prevent the clamping block 131 from shaking. Flame retardant can be filled between the flame retardant sleeve 11 and the clamping block 131.

[0023] When the power cable is in use and the inside of the cable is burning, the insulation layer 134 can perform initial flame retardant operation. At the same time, the flame retardant sleeve 11, the connecting cross plate 12 and the clamping block 131 can clamp and fix the insulation layer 134. Flame retardant is filled between the clamping block 131 and the flame retardant sleeve 11. The flame retardant can perform secondary flame retardant operation, and the flame retardant sleeve 11 performs tertiary flame retardant operation. The insulation sleeve 4 can also prevent leakage.

[0024] Meanwhile, the steel strip 3 between the flame-retardant sleeve 2 and the insulating sleeve 4 can protect the conductor assembly 13 inside the flame-retardant sleeve 11. At the same time, the clamping block 131 and the flame-retardant sleeve 11 clamp and fix the insulating layer 134, protect the safety of the insulating layer 134, avoid damage to the surface of the insulating layer 134, and protect the safety of the insulating layer 134 and the cylindrical conductor 137.

[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 the 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 high-strength armored flame-retardant power cable, comprising a power cable body (1) and an insulating sleeve (4), characterized in that: The surface of the insulating sleeve (4) is wrapped with a steel strip (3), and the surface of the steel strip (3) is fitted with a flame-retardant sleeve (2). The main body (1) of the power cable is installed on the inner wall surface of the insulating sleeve (4). The main body (1) of the power cable includes a flame-retardant sleeve (11), a connecting cross plate (12) is fixedly connected to the inner wall surface of the flame-retardant sleeve (11), and a conductor assembly (13) is inserted into the inner wall surface of the flame-retardant sleeve (11). The conductor assembly (13) includes a clamp (131), with a plug rod (132) inserted into the outward end of the clamp (131), a limiting plug (133) inserted into the outward end of the clamp (131), an insulating layer (134) installed at the inward end of the clamp (131), a filling layer (136) filling the inner surface of the insulating layer (134), a cylindrical conductor (137) installed on the inner wall of the filling layer (136), and a connecting plug (135) fixedly connected to the inward end of the clamp (131).

2. The high-strength armored flame-retardant power cable according to claim 1, characterized in that: The connecting plug (135) is movably connected to the inner wall surface of the connecting cross plate (12).

3. The high-strength armored flame-retardant power cable according to claim 2, characterized in that: The clamp (131) is inserted into the inner wall surface of the flame-retardant sleeve (11), and the clamp (131) is slidably connected to the surface of the connecting horizontal plate (12).

4. The high-strength armored flame-retardant power cable according to claim 3, characterized in that: The flame-retardant sleeve (11) is installed on the inner wall surface of the insulating sleeve (4).

5. The high-strength armored flame-retardant power cable according to claim 4, characterized in that: The clamping blocks (131) are divided into four groups, and the four groups of clamping blocks (131) are distributed inside the flame-retardant sleeve (11).

6. The high-strength armored flame-retardant power cable according to claim 5, characterized in that: The cylindrical conductor (137) is made of copper or aluminum, which are highly conductive materials, to ensure power transmission efficiency.

7. The high-strength armored flame-retardant power cable according to claim 6, characterized in that: The flame-retardant sleeve 2 (2) is made of cross-linked polyethylene.

8. The high-strength armored flame-retardant power cable according to claim 7, characterized in that: The set of clamping blocks (131) is divided into two sets, with each set containing five clamping blocks (131), for a total of ten blocks.

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