Bending-resistant polyvinyl chloride sheath power cable

Abstract

The utility model discloses a bending-resistant polyvinyl chloride sheath power cable which comprises an insulating outer layer, the inner side of the insulating outer layer is fixedly connected with a first armor layer, the inner side of the first armor layer is fixedly connected with a waterproof layer, the inner side of the waterproof layer is fixedly connected with a shielding layer, the inner side of the shielding layer is fixedly connected with a flame-retardant layer, and the inner side of the flame-retardant layer is fixedly connected with a polyvinyl chloride sheath. The inner side of the flame-retardant layer is fixedly connected with an antibacterial layer, the inner side of the antibacterial layer is fixedly connected with a second armor layer, the inner side of the second armor layer is fixedly connected with a coating layer, and the inner side of the coating layer is provided with a filling layer. The bending-resistant polyvinyl chloride sheath power cable is reasonable in structural design, adopts the design of multiple steel wire mesh protection, can improve the bending resistance and twisting resistance of the power cable in all directions, prevents signal transmission interruption caused by skin or internal damage, avoids unnecessary trouble and loss, and can meet multi-directional use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a polyvinyl chloride sheathed power cable with anti-bending property. Background Technique

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer, and is a wire for transmitting electricity or information from one place to another. There are power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single-stranded or multi-stranded wires and insulating layers, and are used to connect circuits, electrical appliances, etc.

[0003] At present, most traditional cables do not have good anti-bending effect. During laying, they are prone to skin or internal damage due to bending, which may lead to transmission interruption, bringing unnecessary troubles and losses. Therefore, we propose a polyvinyl chloride sheathed power cable with anti-bending property to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a polyvinyl chloride sheathed power cable with anti-bending property to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A polyvinyl chloride sheathed power cable with anti-bending property, including an insulating outer layer, the inner side of the insulating outer layer is fixedly connected with a first armor layer, the inner side of the first armor layer is fixedly connected with a waterproof layer, the inner side of the waterproof layer is fixedly connected with a shielding layer, the inner side of the shielding layer is fixedly connected with a flame retardant layer, the inner side of the flame retardant layer is fixedly connected with an antibacterial layer, the inner side of the antibacterial layer is fixedly connected with a second armor layer, the inner side of the second armor layer is fixedly connected with a covering layer, a filling layer is arranged inside the covering layer, a central strip is fixedly connected at the central position inside the filling layer, and a number of wire core protection components are equidistantly arranged around between the outer side of the central strip and the inner wall of the covering layer, and a cable body is arranged inside the wire core protection components.

[0006] Further, the wire core protection component includes a first connecting strip and a second connecting strip, the first connecting strip and the second connecting strip are respectively fixedly connected to the outer side of the central strip and the inner wall of the covering layer, and a third armor layer is fixedly connected between the first connecting strip and the second connecting strip.

[0007] Further, the cable body includes an insulating inner layer, the outer side of the insulating inner layer is attached to the inner wall of the third armor layer, and a number of wire cores are arranged inside the insulating inner layer.

[0008] Further, the wire core is formed by stranding a bundle of wire harnesses, and each wire harness is formed by stranding copper wires with a diameter of.mm.

[0009] Further, a protective protrusion is fixedly connected to the outer side of the insulating outer layer, and the number of the protective protrusions is not less than twenty and they are installed around the outer surface of the insulating outer layer at equal intervals.

[0010] Further, a support frame is arranged inside the filling layer at a position corresponding to between two adjacent core protection components, and both ends of the support frame are fixedly connected to the outer sides of two third armor layers respectively.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, a first armor layer and a second armor layer are successively arranged from outside to inside on the outer side of the covering layer, and a wire mesh is used for manufacturing design, so that the power cable has better bending resistance and anti-twisting performance. At the same time, a third armor layer is arranged on the outer side of the cable body, which can further form protection from the outside. A first connecting strip and a second connecting strip are respectively arranged on the outer side of the third armor layer and are connected to the central strip and the covering layer. With the cooperation of a plurality of support frames, effective positioning of the cable body can be realized, improving the installation stability and protection performance. And a waterproof layer, a flame retardant layer and an antibacterial layer are provided, so that the cable also has good waterproof, fireproof and antibacterial capabilities. The bend-resistant PVC sheathed power cable has a reasonable structural design and adopts a design of multiple wire mesh protections, which can comprehensively improve the bending resistance and anti-torsion performance of the power cable, prevent signal transmission interruption caused by skin or internal damage, avoid unnecessary troubles and losses, and can meet multi-faceted use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural sectional view of the present utility model;

[0014] Figure 2 is a structural sectional view of the core protection component of the present utility model.

[0015] In the figure: 1 insulating outer layer, 2 first armor layer, 3 waterproof layer, 4 shielding layer, 5 flame retardant layer, 6 antibacterial layer, 7 second armor layer, 8 covering layer, 9 filling layer, 10 central strip, 11 core protection component, 111 first connecting strip, 112 second connecting strip, 113 third armor layer, 12 cable body, 121 insulating inner layer, 122 wire core, 13 protective protrusion, 14 support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figure 1-2 , a bend-resistant PVC sheathed power cable, including an insulating outer layer 1 made of PVC material. A first armor layer 2 is fixedly connected to the inner side of the insulating outer layer 1. A waterproof layer 3 is fixedly connected to the inner side of the first armor layer 2. A shielding layer 4 is fixedly connected to the inner side of the waterproof layer 3. A flame-retardant layer 5 is fixedly connected to the inner side of the shielding layer 4. An antibacterial layer 6 is fixedly connected to the inner side of the flame-retardant layer 5. A second armor layer 7 is fixedly connected to the inner side of the antibacterial layer 6. A covering layer 8 is fixedly connected to the inner side of the second armor layer 7. A filling layer 9 is provided inside the covering layer 8. A central strip 10 is fixedly connected to the central position inside the filling layer 9. The length of the central strip 10 is the same as the length of the cable and is made of rubber material. A number of wire core protection components 11 are equidistantly installed in a circumferential manner between the outer side of the central strip 10 and the inner wall of the covering layer 8. A cable body 12 is provided inside the wire core protection components 11.

[0018] Specifically, the wire core protection component 11 includes a first connecting strip 111 and a second connecting strip 112. The first connecting strip 111 and the second connecting strip 112 are respectively fixedly connected to the outer side of the central strip 10 and the inner wall of the covering layer 8. Both the first connecting strip 111 and the second connecting strip 112 are made of rubber and have the same length as the cable body 12. A third armor layer 113 is fixedly connected between the first connecting strip 111 and the second connecting strip 112. The first armor layer 2, the second armor layer 7, and the third armor layer 113 are specifically made of steel wire mesh.

[0019] Specifically, the cable body 12 includes an insulating inner layer 121. The outer side of the insulating inner layer 121 is in contact with the inner wall of the third armor layer 113. A number of conductor cores 122 are provided inside the insulating inner layer 121.

[0020] Specifically, the conductor core 122 is formed by stranding 20 bundles of wire harnesses, and each bundle of wire harnesses is formed by stranding 100 copper wires with a diameter of 0.2 mm.

[0021] Specifically, a protection protrusion 13 is fixedly connected to the outer side of the insulating outer layer 1. The number of the protection protrusions 13 is not less than twenty and they are equidistantly installed on the outer surface of the insulating outer layer 1.

[0022] Specifically, a support frame 14 is provided inside the filling layer 9 and corresponding to the position between two adjacent core protection components 11. The two ends of the support frame 14 are respectively fixedly connected to the outer sides of the two third armor layers 113.

[0023] In the utility model, a first armor layer 2 and a second armor layer 7 are sequentially arranged from outside to inside on the outer side of the coating layer 8. The design is made by using a steel wire mesh, so that the power cable has good bending resistance and anti-twisting performance. At the same time, a third armor layer 113 is arranged on the outer side of the cable body 12, which can further form protection from the outside. A first connecting strip 111 and a second connecting strip 112 are respectively arranged on the outer side of the third armor layer 113 and form connections with the center strip 10 and the coating layer 8. With the cooperation of a plurality of support frames 14, the effective positioning of the cable body 12 can be realized, the installation stability and the protection performance are improved, and a waterproof layer 3, a flame retardant layer 5 and an antibacterial layer 6 are provided, so that the cable also has good waterproof, fireproof and antibacterial capabilities. The PVC sheath power cable with bending resistance has a reasonable structural design and adopts a design of multiple steel wire mesh protections, which can comprehensively improve the bending resistance and anti-torsion performance of the power cable, prevent signal transmission interruption caused by skin or internal damage, avoid unnecessary troubles and losses, and can meet multi-faceted use requirements.

[0024] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A bending-resistant polyvinyl chloride sheathed power cable, comprising an insulating outer layer (1), characterized in that: The inner side of the insulating outer layer (1) is fixedly connected to a first armor layer (2), the inner side of the first armor layer (2) is fixedly connected to a waterproof layer (3), the inner side of the waterproof layer (3) is fixedly connected to a shielding layer (4), the inner side of the shielding layer (4) is fixedly connected to a flame retardant layer (5), the inner side of the flame retardant layer (5) is fixedly connected to an antibacterial layer (6), the inner side of the antibacterial layer (6) is fixedly connected to a second armor layer (7), the inner side of the second armor layer (7) is fixedly connected to a coating layer (8), a filling layer (9) is provided on the inner side of the coating layer (8), a center bar (10) is fixedly connected at a central position inside the filling layer (9), a plurality of wire core protection components (11) are equidistantly mounted around the outer side of the center bar (10) and the inner wall of the coating layer (8), and a cable body (12) is provided on the inner side of the wire core protection component (11).

2. A bending-resistant polyvinyl chloride sheathed power cable according to claim 1, characterized in that: The wire core protection component (11) comprises a first connecting strip (111) and a second connecting strip (112), wherein the first connecting strip (111) and the second connecting strip (112) are respectively fixedly connected to the outer side of the center strip (10) and the inner wall of the coating layer (8), and a third armor layer (113) is fixedly connected between the first connecting strip (111) and the second connecting strip (112).

3. A bending-resistant polyvinyl chloride sheathed power cable according to claim 2, characterized in that: The cable body (12) comprises an insulating inner layer (121), the outer side of the insulating inner layer (121) is in contact with the inner wall of the third armor layer (113), and a plurality of conductor cores (122) are arranged on the inner side of the insulating inner layer (121).

4. The bending-resistant polyvinyl chloride sheathed power cable according to claim 3, characterized in that: The conductor core (122) is formed by twisting 20 wire bundles, and each wire bundle is formed by twisting 100 copper wires with a diameter of 0.2 mm.

5. The bending-resistant polyvinyl chloride sheathed power cable according to claim 4, characterized in that: The outer side of the insulating outer layer (1) is fixedly connected with protective protrusions (13), the number of the protective protrusions (13) is no less than twenty and they are equidistantly mounted around the outer surface of the insulating outer layer (1).

6. The bending-resistant polyvinyl chloride sheathed power cable according to claim 5, characterized in that: A support frame (14) is provided inside the filling layer (9) and at a position corresponding to between two adjacent wire core protection components (11), and two ends of the support frame (14) are respectively fixedly connected to the outsides of the two third armor layers (113).

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