Polyvinyl chloride sheath aluminum plastic tape shielding power cable

Abstract

A polyvinyl chloride sheath aluminum plastic tape shielding power cable disclosed by the present application comprises a cable body and a reinforcing unit, the cable body comprises a sheath, a flame-retardant layer and a wrapping layer, the wrapping layer is internally provided with a plurality of core wires and a plurality of flame-retardant filling ropes, each core wire comprises a conductor and an insulating layer, the flame-retardant layer has a first abutting surface, and the first abutting surface is provided with a second abutting surface. The first abutting surface is provided with two strip-shaped embedding grooves, the reinforcing unit is provided with a second abutting surface, the second abutting surface is provided with two strip-shaped embedding strips, and the sheath is provided with a containing groove. The power cable provided by the utility model has relatively good flame-retardant performance and shielding performance. The power cable is suitable for some occasions where short-distance installation is needed and the cable needs to be hung, and the fixing unit enables the cable to be hung and installed more conveniently.

Description

Technical Field

[0001] The utility model relates to the field of cables, and more specifically to a polyvinyl chloride sheathed aluminum-plastic belt shielded power cable. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. They are widely used in urban power grids, industrial plants, large buildings, transportation, underwater power transmission, mountain power transmission, petroleum industry, etc. They can efficiently transmit electrical energy to the destination, ensure the stable and safe operation of the power system, and make important contributions to the economic development and energy supply of modern society.

[0003] Existing power cables have poor flame retardancy. When a fire occurs, the cables may burn more easily, causing the fire to spread rapidly, increasing the risk of fire. Some cables may also produce more toxic smoke and harmful gases when burning, posing a threat to the life safety and health of personnel. In addition, ordinary power cables are not convenient for hanging installation and may lack suitable fixing and supporting devices, making hanging installation complicated or difficult, increasing installation time and cost. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provides a polyvinyl chloride sheathed aluminum-plastic belt shielded power cable.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power cable, comprising a cable body and a reinforcement unit, the cable body comprising a sheath, a flame retardant layer and a wrapping layer arranged in sequence from the outside to the inside, the wrapping layer having a plurality of core wires and a plurality of flame retardant filling ropes, the core wire comprising a conductor and an insulating layer covering the conductor, the reinforcement unit being located between the sheath and the flame retardant layer, the flame retardant layer having a first abutting surface, the first abutting surface having two strip embedding grooves, the reinforcement unit having a second abutting surface capable of abutting the first abutting surface, the second abutting surface having two strip embedding strips cooperating with the strip embedding grooves, the sheath having a receiving groove, the reinforcement unit having a groove portion cooperating with the receiving groove, the reinforcement unit being made of plastic, the sheath being a polyvinyl chloride sheath, the flame retardant layer being a low-smoke halogen-free flame retardant layer, and the wrapping layer being an aluminum-plastic tape wrapping layer.

[0006] Furthermore, at least one fixing unit is installed on the outside of the cable body, and the fixing unit includes an embedded plate, an arc panel and two mounting plates fixedly connected to the arc panel. The embedded plate can be embedded in the accommodating groove, the embedded plate has a stud that can extend out of the accommodating groove, the arc panel has a mounting hole matching the stud, the embedded plate and the arc panel are fixedly connected through the stud and nut, the arc panel can abut the outer surface of the sheath, and the mounting plate has a strip-shaped through hole.

[0007] The strip-shaped through holes are thus convenient for hanging and installing cables.

[0008] Furthermore, the two mounting plates are arranged in parallel.

[0009] Thereby the cable suspension installation is more stable.

[0010] Furthermore, the strip-shaped embedding strip extends along the length direction of the cable.

[0011] This makes it easy to assemble the flame retardant layer and the reinforcement unit in cooperation with the strip embedding groove.

[0012] Furthermore, the accommodating groove extends along the length direction of the cable.

[0013] Therefore, the fixing unit can be installed at a selected location according to the requirements, thereby enhancing the flexibility and adaptability of the cable installation.

[0014] Furthermore, there are three core wires, and the three core wires are distributed in a ring shape with equal intervals.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The power cable of the present application has a polyvinyl chloride sheath, a flame-retardant filling rope, and a low-smoke halogen-free flame-retardant layer, which makes the cable have good flame-retardant properties and can effectively prevent the fire from spreading further.

[0017] 2. The power cable of the present application has an aluminum-plastic tape wrapped around the sheath, which enables the cable to have good shielding performance, can effectively reduce interference to the cable, and improve the transmission stability of the cable.

[0018] 3. The power cable of the present application is suitable for some short-distance installations and occasions where cables need to be mounted. The fixing unit makes cable hanging installation more convenient.

[0019] 4. In the power cable of the present application, the fixing unit is matched with the reinforcing unit, so that when the fixing unit and the cable body are matched, the damage to the cable body is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first viewing angle of Example 1;

[0021] Figure 2 This is a schematic diagram of a second viewing angle of Example 1;

[0022] Figure 3 This is a schematic diagram of component separation in Example 2;

[0023] Figure 4 A schematic diagram of preparing an embedding receiving groove for an embedding plate;

[0024] Figure 5 This is a schematic diagram of the fixed unit after installation.

[0025] Explanation of the reference numerals: 1 sheath; 1.1 receiving groove; 2 flame retardant layer; 3 winding layer; 4 core wire; 4.1 conductor; 4.2 insulating layer; 5 flame retardant filling rope; 6 reinforcement unit; 6.1 strip embedded strip; 6.2 groove portion; 7 embedded plate; 7.1 stud; 8 arc panel; 9 mounting plate; 9.1 strip through hole; 10 nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] This embodiment provides Figure 1-2 A polyvinyl chloride sheathed aluminum-plastic tape shielded power cable shown in the figure comprises a cable body and a reinforcement unit 6, wherein the cable body comprises a sheath 1, a flame retardant layer 2 and a wrapping layer 3 which are arranged in sequence from the outside to the inside, wherein the wrapping layer 3 comprises a plurality of core wires 4 and a plurality of flame retardant filling ropes 5, wherein the core wire 4 comprises a conductor 4.1 and an insulating layer 4.2 wrapping the conductor 4.1, wherein the reinforcement unit 6 is located between the sheath 1 and the flame retardant layer 2, wherein the flame retardant layer 2 has a first abutting surface, wherein the first abutting surface has two strip embedding grooves, wherein the reinforcement unit 6 has a second abutting surface capable of abutting the first abutting surface, wherein the second abutting surface has two strip embedding strips 6.1 which cooperate with the strip embedding grooves, wherein the sheath 1 has a receiving groove 1.1, wherein the reinforcement unit 6 has a groove portion 6.2 which cooperates with the receiving groove 1.1, wherein the reinforcement unit 6 is made of plastic, wherein the sheath 1 is a polyvinyl chloride sheath, wherein the flame retardant layer 2 is a low-smoke halogen-free flame retardant layer, and the wrapping layer 3 is an aluminum-plastic tape wrapping layer. The strip-shaped embedding strip 6.1 extends along the length direction of the cable; the accommodating groove 1.1 extends along the length direction of the cable; there are three core wires 4, and the three core wires 4 are distributed in a ring shape with equal intervals.

[0029] Working principle: The power cable of the present application has good flame retardant performance due to the setting of polyvinyl chloride sheath, flame retardant filling rope and low smoke halogen-free flame retardant layer, which can effectively prevent the fire from spreading further. The setting of aluminum-plastic tape wrapping layer makes the cable have good shielding performance, which can effectively reduce the interference to the cable and improve the transmission stability of the cable.

[0030] Example 2

[0031] like Figure 3-5 As shown, the difference between Example 2 and Example 1 is that at least one fixing unit is installed on the outer side of the cable body, and the fixing unit includes an embedded plate 7, a curved plate 8, and two mounting plates 9 fixedly connected to the curved plate 8, the embedded plate 7 can be embedded in the receiving groove 1.1, the embedded plate 7 has a stud 7.1 that can extend out of the receiving groove 1.1, the curved plate 8 has a mounting hole matching the stud 7.1, the embedded plate 7 and the curved plate 8 are fixedly connected with the nut 10 through the stud 7.1, the curved plate 8 can abut the outer surface of the sheath 1, and the mounting plate 9 has a strip-shaped through hole 9.1. Two mounting plates 9 are arranged in parallel.

[0032] Working principle: The power cable of this application is suitable for some short-distance installations and occasions where cables need to be mounted. The fixing unit makes cable hanging installation more convenient. Due to the coordination of the strengthening unit, the fixing unit and the cable body are coordinated, so that the damage to the cable body is small.

[0033] When assembling, firstly, the two strip-shaped embedding strips of the reinforcement unit are respectively embedded into the two strip-shaped embedding grooves of the flame retardant layer, so as to realize the assembly of the reinforcement unit and the flame retardant layer, and then extrude the sheath after the assembly. Figure 4 As shown, first make the stud lie flat, then insert the embedded plate into the receiving groove, then rotate the stud 90 degrees, and then fix the embedded plate to the curved plate through the stud and nut, so that the cable can be conveniently hung at the desired position through the strip through hole at the mounting plate.

[0034] Although the present invention has been illustrated and described with respect to preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A polyvinyl chloride sheathed aluminum-plastic tape shielded power cable, characterized in that: It includes a cable body and a reinforcement unit. The cable body includes a sheath, a flame retardant layer and a wrapping layer which are arranged in sequence from the outside to the inside. The wrapping layer has multiple core wires and multiple flame retardant filling ropes. The core wire includes a conductor and an insulating layer covering the conductor. The reinforcement unit is located between the sheath and the flame retardant layer. The flame retardant layer has a first abutting surface, and the first abutting surface has two strip embedding grooves. The reinforcement unit has a second abutting surface capable of abutting the first abutting surface, and the second abutting surface has two strip embedding strips that cooperate with the strip embedding grooves. The sheath has a receiving groove, and the reinforcement unit has a groove portion that cooperates with the receiving groove. The reinforcement unit is made of plastic, the sheath is a polyvinyl chloride sheath, the flame retardant layer is a low-smoke halogen-free flame retardant layer, and the wrapping layer is an aluminum-plastic tape wrapping layer.

2. The PVC sheathed aluminum-plastic tape shielded power cable according to claim 1, characterized in that: At least one fixing unit is installed on the outside of the cable body, and the fixing unit includes an embedded plate, an arc panel and two mounting plates fixedly connected to the arc panel. The embedded plate can be embedded in the accommodating groove, the embedded plate has a stud that can extend out of the accommodating groove, the arc panel has a mounting hole matching the stud, the embedded plate and the arc panel are fixedly connected through the stud and nut, the arc panel can abut the outer surface of the sheath, and the mounting plate has a strip-shaped through hole.

3. The PVC sheathed aluminum-plastic tape shielded power cable according to claim 2, characterized in that: The two mounting plates are arranged in parallel.

4. The PVC sheathed aluminum-plastic tape shielded power cable according to claim 1, characterized in that: The strip-shaped embedding strip extends along the length direction of the cable.

5. The PVC sheathed aluminum-plastic tape shielded power cable according to claim 1, characterized in that: The accommodating groove extends along the length direction of the cable.

6. The PVC sheathed aluminum-plastic tape shielded power cable according to claim 1, characterized in that: The number of core wires is three, and the three core wires are distributed in a ring shape with equal intervals.

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