Tensile cable

Abstract

The utility model relates to the technical field of cables, in particular to a tensile cable, which comprises a cable core, an inner sheath layer is arranged on the outer side of the cable core, a supporting compression-resistant mechanism is arranged in the inner sheath layer, a reinforcing layer, a fire-resistant layer, an insulating layer and a tensile layer are sequentially arranged on the outer side of the inner sheath layer, a tensile woven mesh is arranged on the outer side of the tensile layer, and the tensile woven mesh is arranged on the outer side of the cable core. According to the utility model, when the cable is dragged, the tensile woven meshes interact with one another, the reinforced protective layer structure eliminates external tension, and meanwhile, the elastic supporting pieces are arranged in the filling protective layer, so that when the cable is extruded, the cable is prevented from being damaged, and the cable is prevented from being damaged. The arc-shaped supporting plates at the two ends of the elastic supporting piece play a good supporting and protecting role, when the cable needs to be dragged, a rope is directly wound on the pull ring, then the rotary knob is rotated to enable the screw rod to drive the arc-shaped fixing abutting piece to fix the cable outer protection layer and the rope, and the cable is convenient to drag and drag.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a tension-resistant cable. Background Art

[0002] High-voltage cable is a type of power cable. It is a bridge between power supply equipment and power-consuming equipment. It plays the role of transmitting electric energy and is widely used. It is an indispensable tool for long-distance power transmission. Traditional high-voltage cables have low tensile strength, and during maintenance and repair operations, the cables often need to be pulled frequently, which can easily cause the cables to crack or even break. This shortens the service life of the cables and increases the frequency of cable repairs.

[0003] The prior art refers to a tensile and compression-resistant cable disclosed in the announcement number CN216957540U, which has good flame retardancy, insulation, and high temperature resistance. The pressure is dispersed and weakened by the compression layer, and the protective layer and the elastic support plate work together to effectively protect the cable core from being damaged by extrusion, thereby improving the compression resistance of the cable body. At the same time, the elastic support plate can further improve the tensile resistance of the cable body, thereby improving the performance of the entire cable body and extending the service life;

[0004] However, the prior art usually requires additional ropes to fix the cable during dragging, which is cumbersome to operate. In addition, the cable surface is smooth and the rope and cable are prone to slipping off each other. Therefore, we have designed a tensile-resistant cable. Utility Model Content

[0005] The utility model aims to solve the problem that in the prior art, when dragging and pulling a cable, an additional rope is usually required to fix it during dragging, which is troublesome to operate, and the rope and the cable are prone to slipping away from each other due to the smooth surface of the cable, and thus a tensile-resistant cable is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tensile-resistant cable comprises a cable core, an inner sheath layer is arranged on the outer side of the cable core, a filling protective layer is arranged inside the inner sheath layer, a supporting and compressive-resistant mechanism is arranged inside the inner sheath layer for providing good supporting and protective effects when the cable is squeezed, a reinforcement layer, a fire-resistant layer, an insulating layer and a tensile-resistant layer are arranged in sequence on the outer side of the inner sheath layer, a tensile-resistant braided mesh is arranged on the outer side of the tensile-resistant layer, an outer sheath is arranged on the outer side of the tensile-resistant braided mesh, and a towing mechanism for conveniently towing the cable is provided on the outer sheath.

[0008] Preferably, the support and compression-resistant mechanism comprises:

[0009] An elastic support member and a plurality of arc-shaped support plates, wherein the elastic support member is arranged in a hollow triangular prism shape in the middle, and the plurality of arc-shaped support plates are respectively connected to the elastic support member through a plurality of connecting members, and the plurality of arc-shaped support plates are distributed on the inner side of the inner sheath layer in a circular array.

[0010] Preferably, the elastic support separates the multiple conductors in the cable core.

[0011] Preferably, the dragging mechanism comprises:

[0012] A pull ring, wherein the pull ring is sleeved on the outer sheath, and a threaded mounting hole is provided on the side wall of the pull ring;

[0013] A screw rod, a knob and an arc-shaped fixed butt piece, wherein the screw rod is inserted into the threaded mounting hole, one end of the screw rod located on the inner side wall of the pull ring is rotatably connected to the arc-shaped fixed butt piece, and the other end is coaxially fixedly connected to the knob.

[0014] Preferably, the tensile woven mesh is made of aramid fiber.

[0015] Preferably, a rubber pad is provided on the inner wall of the arc-shaped fixed abutment for preventing the pull ring from damaging the outer protective layer.

[0016] The beneficial effects of the utility model are:

[0017] 1. In the utility model, when the cable is dragged, the tensile braided meshes interact with each other, and the reinforced sheath structure dissolves the external tension to prevent the cable from being twisted unnecessarily. At the same time, an elastic support is provided inside the filling protective layer. When the cable is squeezed, the arc-shaped support plates at both ends of the elastic support play a good supporting and protective role, preventing the inner sheath layer from being squeezed and deformed, thereby causing the cable core to be squeezed. It has the advantages of high mechanical stress resistance, drag resistance, and twist resistance, and reduces the diameter of the outer sheath, saves installation space, reduces the weight of the cable, and facilitates the installation of the cable.

[0018] 2. The utility model sets a pull ring on the outer sheath of the cable, and a threaded installation hole is opened on the pull ring. When the cable needs to be dragged, the rope is directly wrapped around the pull ring, and then the knob is rotated to make the screw drive the arc-shaped fixed piece to fix the outer sheath of the cable and the rope, which is convenient for dragging the cable, and the pull ring bears most of the pulling force, reducing the burden on the outer sheath of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a tensile-resistant cable proposed by the utility model;

[0020] Figure 2 This is a front view of a tensile cable proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of a supporting and compressive resistance mechanism of a tensile cable proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the tensile braided mesh structure of a tensile-resistant cable.

[0023] In the figure: 1. Cable core; 2. Filling protective layer; 3. Elastic support member; 4. Arc support plate; 5. Inner sheath layer; 6. Reinforcement layer; 7. Fire-resistant layer; 8. Insulation layer; 9. Tensile layer; 10. Outer sheath; 11. Tensile braided mesh; 12. Pull ring; 13. Screw; 14. Knob; 15. Arc fixing plate; 16. Rubber pad. DETAILED DESCRIPTION

[0024] Reference Figure 1-Figure 4 A tensile cable comprises a cable core 1, an inner sheath layer 5 is arranged outside the cable core 1, a filling protective layer 2 is arranged inside the inner sheath layer 5, and a supporting and compressive resistance mechanism is arranged inside the inner sheath layer 5, and the supporting and compressive resistance mechanism is used to play a good supporting and protective role when the cable is squeezed;

[0025] The supporting pressure-resistant mechanism includes an elastic support member 3 and a plurality of arc-shaped support plates 4. The elastic support member 3 is arranged in a hollow triangular prism shape in the middle. The plurality of arc-shaped support plates 4 are respectively connected to the elastic support member 3 through a plurality of connectors, and the plurality of arc-shaped support plates 4 are distributed on the inner side of the inner sheath layer 5 in a circular array. The elastic support member 3 separates the plurality of conductors in the cable core 1. When the cable is squeezed, the arc-shaped support plates 4 fixedly connected to the outer wall of the elastic support member 3 play a good supporting and protective role, and the triangle has a certain structural stability, which prevents the inner sheath layer 5 from being squeezed and deformed, and prevents the cable core 1 from being squeezed. At the same time, the elastic support member 3 separates the plurality of conductors in the cable core 1 and protects them by filling the protective layer 2, thereby effectively increasing the compression resistance of the cable.

[0026] Reference Figure 1 and Figure 4 The outer side of the inner sheath layer 5 is provided with a reinforcement layer 6, a fire-resistant layer 7, an insulating layer 8 and a tensile layer 9 in sequence, the outer side of the tensile layer 9 is provided with a tensile braided mesh 11, the outer side of the tensile braided mesh 11 is provided with an outer sheath 10, and the outer sheath 10 is provided with a dragging mechanism, which is used to facilitate the dragging and traction of the cable;

[0027] The dragging mechanism includes a pull ring 12, a screw rod 13, a knob 14 and an arc-shaped fixed butt plate 15. The pull ring 12 is sleeved on the outer sheath 10. A threaded mounting hole is opened on the side wall of the pull ring 12. The screw rod 13 is inserted into the threaded mounting hole. One end of the screw rod 13 is located on the inner wall of the pull ring 12 and is rotatably connected to the arc-shaped fixed butt plate 15, and the other end is coaxially fixedly connected to the knob 14. By sleeved the pull ring 12 on the outer sheath 10 of the cable, and opening the threaded mounting hole on the pull ring 12, when the cable needs to be dragged, the rope is directly wrapped around the pull ring 12, and then the knob 14 is rotated so that the screw rod 13 drives the arc-shaped fixed butt plate 15 to fix the outer sheath 10 of the cable and the rope, which is convenient for dragging the towing cable, wherein the pull ring 12 bears most of the towed force, reducing the burden on the outer sheath 10 of the cable.

[0028] Reference Figure 4 The material of the tensile braided mesh 11 is aramid fiber. The effect of this arrangement is that when the cable is dragged, the tensile braided meshes 11 interact with each other, and the reinforced sheath structure dissolves the external tension, prevents unnecessary twisting of the cable, and effectively increases the tensile resistance of the cable.

[0029] Reference Figure 1 A rubber pad 16 is provided on the inner wall of the arc-shaped fixed butt piece 15 to prevent the pull ring 12 from damaging the outer sheath 10 .

[0030] The working principle of the utility model is as follows:

[0031] By laying a tensile woven mesh 11 made of aramid fiber on the outer surface of the tensile layer 9, the tensile woven meshes 11 interact with each other when the cable is dragged, and the reinforced sheath structure dissipates the external tension to prevent unnecessary twisting of the cable. At the same time, an elastic support member 3 is provided inside the filling protective layer 2. When the cable is squeezed, the arc-shaped support plate 4 fixedly connected to the outer wall of the elastic support member 3 plays a good supporting and protective role, preventing the inner sheath layer 5 from being squeezed and deformed, and preventing the cable core 1 from being squeezed. When the cable needs to be dragged, the rope is directly wrapped around the pull ring 12, and then the knob 14 is rotated so that the screw 13 drives the arc-shaped fixed abutment 15 to fix the outer sheath 10 of the cable and the rope, which is convenient for dragging the traction cable, wherein the pull ring 12 bears most of the pulled force, reducing the burden on the outer sheath 10 of the cable.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensile cable, comprising a cable core (1), characterized in that: An inner sheath layer (5) is provided on the outer side of the cable core (1), a filling protective layer (2) is provided on the inner sheath layer (5), a supporting and compressive resistance mechanism is provided on the inner sheath layer (5) for providing good supporting and protective effects when the cable is squeezed, a reinforcing layer (6), a fire-resistant layer (7), an insulating layer (8) and a tensile layer (9) are provided on the outer side of the inner sheath layer (5) in sequence, a tensile braided mesh (11) is provided on the outer side of the tensile braided mesh (11), an outer sheath layer (10) is provided on the outer sheath layer (10), and a towing mechanism for conveniently towing the traction cable is provided on the outer sheath layer (10).

2. A tensile cable according to claim 1, characterized in that: The support and compression-resistant mechanism comprises: An elastic support member (3) and a plurality of arc-shaped support plates (4), wherein the elastic support member (3) is arranged in the shape of a hollow triangular prism in the middle, the plurality of arc-shaped support plates (4) are respectively connected to the elastic support member (3) via a plurality of connecting members, and the plurality of arc-shaped support plates (4) are distributed on the inner side of the inner sheath layer (5) in a circular array.

3. A tensile cable according to claim 2, characterized in that: The elastic support member (3) separates the multiple conductors in the cable core (1).

4. A tensile cable according to claim 1, characterized in that: The dragging mechanism comprises: A pull ring (12), wherein the pull ring (12) is sleeved on the outer protective layer (10), and a threaded mounting hole is provided on the side wall of the pull ring (12); A screw rod (13), a knob (14) and an arc-shaped fixed butt piece (15), wherein the screw rod (13) is inserted into the threaded mounting hole, one end of the screw rod (13) located on the inner side wall of the pull ring (12) is rotatably connected to the arc-shaped fixed butt piece (15), and the other end is coaxially fixedly connected to the knob (14).

5. A tensile cable according to claim 1, characterized in that: The material of the tensile braided mesh (11) is aramid fiber.

6. A tensile cable according to claim 4, characterized in that: A rubber pad (16) is provided on the inner wall of the arc-shaped fixed butt piece (15) for preventing the pull ring (12) from causing damage to the outer protective layer (10).

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