CN219872919U - A highly elastic cable - Google Patents

Abstract

The utility model discloses a highly elastic cable, which includes a copper conductor. The outer side of the copper conductor is wrapped with a shielding layer and an insulating layer. The insulating layer is made of an insulating rubber assembly. An elastic layer is provided on the outside of the insulating layer. There are several through holes in the elastic layer, the insulating layer is located in the through holes, an elastic column is provided in the middle of the elastic layer, a tensile core is provided in the middle of the elastic column, and the outer layer of the elastic layer is covered with a braid. layer, the outside of the braided layer is wrapped with a flame retardant layer, and the flame retardant layer is used to protect the interior. The outside of the flame retardant layer is sleeved with an outer sheath. The advantages of this utility model are: high elasticity and high tensile strength , improving the overall flame retardant ability of the cable.

Description

A highly elastic cable

Technical field

The utility model relates to the technical field of cables, and specifically refers to a highly elastic cable.

Background technique

Wires and cables refer to materials used for power, electrical and related transmission purposes. In order to emphasize important or additional features, the features are written to the front or before the corresponding structural description. The existing protective cables have poor elasticity and are subject to external squeeze during use. Pressure can easily lead to wire deformation, affecting power transmission, poor safety and stability, and difficult to meet usage requirements. Publication No. CN218826281U discloses a highly elastic and anti-extrusion cable. This highly elastic and anti-extrusion cable has a combination of outer filler and inner filler The cable can have a certain buffering effect under the action, and the anti-compression spring on the fixed plate can resist the cable when it is squeezed to protect the cable. The anti-compression spring gives the cable a reaction force, and cooperates with the external force. The filler protects the cable in both directions, making the cable good elasticity and pressure resistance, protecting the internal core of the cable, and extending the service life of the cable. Highly elastic cables use a large amount of insulating rubber as the manufacturing material of the cable. , and rubber is easy to melt and catch fire at high temperatures, and is prone to irreversible deformation during high-strength stretching. Therefore, it is necessary to improve the protection of high-elastic cables.

Utility model content

The utility model solves the above problems and provides a cable that improves the overall elasticity of the cable through an elastic layer and an elastic column, reserves a deformation area of the elastic column to improve its deformation recovery ability, and limits the stretching through a tensile core to improve the The tensile strength of the cable is a highly elastic cable that is surrounded by a flame retardant layer to improve the overall flame retardancy of the cable.

In order to solve the above technical problems, the technical solution provided by the utility model is: a highly elastic cable, including a copper conductor, the outer side of the copper conductor is wrapped with a shielding layer and an insulating layer, the insulating layer is made of insulating rubber, and the insulation There is an elastic layer on the outside of the layer, a number of through holes are provided in the elastic layer, the insulating layer is located in the through hole, an elastic column is provided in the middle of the elastic layer, and a tensile core is provided in the middle of the elastic column. The outer layer of the elastic layer is covered with a braided layer. The outside of the braided layer is wrapped with a flame retardant layer. The flame retardant layer is used to protect the interior. The outside of the flame retardant layer is covered with an outer sheath.

There is internal filler between the through hole and the insulating layer.

The shielding layer is composed of semi-conductive nylon tape and silver-plated nickel wire braid.

Several deformation cavities are provided along the circumferential direction in the elastic column, and both the elastic column and the elastic layer are made of silicone rubber.

The tensile core is composed of multiple strands of asbestos wire wound as the central filling material of the elastic column.

The braided layer is composed of composite fibers wound around the outside of the elastic layer.

The flame retardant layer is composed of flame retardant polyolefin.

The outer sheath is made of neoprene.

The advantages of the utility model are that: the shielding layer and the insulating layer are provided to isolate and protect the copper conductor; the elastic layer is provided to surround the copper conductor through the through hole and the inner filling material; and the elastic column has good elasticity. Deformation ability, the deformation cavity better buffers the deformation of the elastic layer and elastic column, the tensile core is set in the central area to improve the internal tensile strength of the cable, and the braided layer is set to improve the tensile resistance of the outside of the cable Strength, the provided flame retardant layer improves the overall flame retardant effect of the cable. The utility model has high elasticity and high tensile strength, which improves the overall flame retardant ability of the cable.

Description of the drawings

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a schematic diagram of the shielding layer structure of the present invention.

Figure 3 is a schematic diagram of the braided layer structure of the present invention.

As shown in the figure: 1. Shielding layer; 2. Insulating layer; 3. Elastic layer; 4. Through hole; 5. Elastic column; 6. Tensile core; 7. Braided layer; 8. Flame retardant layer; 9. Outer Sheath; 10. Semi-conductive nylon tape; 11. Silver-plated nickel wire braid; 12. Deformation cavity.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings.

With reference to Figures 1, 2, and 3, a highly elastic cable includes a copper conductor. The copper conductor is wrapped with a shielding layer 1 and an insulating layer 2. The insulating layer 2 is made of insulating rubber. The insulating layer There is an elastic layer 3 on the outside of 2, which uses elasticity to buffer the pressure on the whole. There are several through holes 4 in the elastic layer 3, and the insulating layer 2 is located in the through holes 4. The elastic layer 3 is provided with an elastic column 5 in the middle, and a tensile core 6 is provided in the middle of the elastic column 5. The elastic layer 3 is covered with a braided layer 7, and the outside of the braided layer 7 is wrapped with a flame retardant layer 8. The flame-retardant layer 8 is used to protect the interior to prevent damage to the cable as a whole due to high external temperatures. An outer sheath 9 is connected to the outside of the flame-retardant layer 8 .

There is internal filling material between the through hole 4 and the insulating layer 2 .

The shielding layer 1 is composed of a semi-conductive nylon tape 10 and a silver-plated nickel wire braid 117.

Several deformation cavities 12 are provided in the circumferential direction of the elastic column 5. The elastic column 5 and the elastic layer 3 are both made of silicone rubber. The elastic column 5 can improve the compression and tensile deformation and recovery of the overall cable. Recovery ability and improve the overall elasticity of the cable.

The tensile core 6 is composed of multiple strands of asbestos wire wound as the central filling material of the elastic column 5. The tensile core improves the overall tensile structural strength of the cable.

The braided layer 7 is composed of composite fibers wound around the outside of the elastic layer 3 .

The flame retardant layer 8 is composed of flame retardant polyolefin.

The outer sheath 9 is made of neoprene rubber.

During the specific implementation of the utility model, when being squeezed: the elastic layer and the elastic column are deformed, the inner filling material blocks the insulator and the elastic layer, and the deformation cavity is deformed to protect the copper conductor.

When being stretched: the braided layer is stressed on the outside, and the tensile core is stressed on the inside, which strengthens the overall stress-bearing structure of the cable and reduces the deformation of the elastic layer.

When a fire breaks out, the flame-retardant layer blocks the heat after the outer sheath melts, preventing further fires inside the cable.

The present utility model and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the utility model, and the actual structure is not limited thereto. In short, if a person of ordinary skill in the art is inspired by it and without departing from the creative purpose of the present utility model, can design a similar structural method and embodiment to the technical solution without creativity, they shall all fall under the protection of the present utility model. scope.

Claims (8)

1. A high elasticity cable comprising a copper conductor, characterized in that: the copper conductor outside parcel has shielding layer (1), insulating layer (2), the outside of insulating layer (2) is equipped with elastic layer (3), be equipped with a plurality of through-hole (4) in elastic layer (3), insulating layer (2) are located through-hole (4), be equipped with elasticity post (5) in the middle of elastic layer (3), be equipped with tensile core (6) in the middle of elasticity post (5), elastic layer (3) outer cover is equipped with weaving layer (7), weaving layer (7) outside parcel has flame retardant coating (8), oversheath (9) have been cup jointed in the flame retardant coating (8) outside.

2. A highly elastic cable according to claim 1, characterized in that: an inner filling material is arranged between the inside of the through hole (4) and the insulating layer (2).

3. A highly elastic cable according to claim 1, characterized in that: the shielding layer (1) is composed of a semiconductive nylon belt (10) and a silver-plated nickel wire weaving layer (11).

4. A highly elastic cable according to claim 1, characterized in that: a plurality of deformation cavities (12) are formed in the elastic column (5) along the circumferential direction, and the elastic column (5) and the elastic layer (3) are both made of silicon rubber.

5. A highly elastic cable according to claim 1, characterized in that: the tensile core (6) is formed by winding a plurality of asbestos threads and is used as a central filling material of the elastic column (5).

6. A highly elastic cable according to claim 1, characterized in that: the braiding layer (7) is formed by interweaving composite fibers wound on the outer side of the elastic layer (3).

7. A highly elastic cable according to claim 1, characterized in that: the flame retardant layer (8) is composed of flame retardant polyolefin.

8. A highly elastic cable according to claim 1, characterized in that: the outer sheath (9) is made of neoprene.