Low-voltage cable with reinforcing structure

Abstract

The utility model discloses a low-voltage cable with a reinforcing structure. The low-voltage cable comprises a rubber layer. A first cavity is formed in the center in the rubber layer; a second cavity is formed in the periphery of the first cavity in a surrounding manner; a deformation cavity is further formed in the rubber layer; a main conductor; the main conductor is located in the first cavity; a sub-conductor; the auxiliary conductor is located in the second cavity; the first cavity and the second cavity are filled with filler. The outer side of the rubber layer is wrapped with a flame-retardant layer; a shielding layer is arranged outside the flame-retardant layer in a wrapping manner; the outer side of the shielding layer is wrapped with a wear-resistant layer; and a protective sleeve is arranged on the outer side of the wear-resistant layer. By arranging the rubber layer with the first cavity and the second cavity, the cable can have a certain displacement amount in the rubber layer, when the cable is bent, the cable cannot directly extrude the rubber layer, and the rubber layer is prevented from being pressed to cause fracture; meanwhile, the deformation cavity is formed in the rubber layer, so that the deformation resistance of the rubber layer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission cables, in particular to a low-voltage cable with a reinforcement structure. Background Art

[0002] A cable is a device for transmitting electrical energy or signals, typically consisting of a conductor, insulation, and protective covering. In the field of power transmission technology, cables are essential equipment, responsible for transmitting electrical energy from the power source to various devices. Cables are known for their reliability, the absence of poles, lack of floor space, unobstructed appearance, and minimal impact from external influences.

[0003] During the use of existing cables, due to their own weight and bending stress, the cables may bend downward. When the bending reaches the limit, the rubber layer and protective layer on the surface will rupture, causing the internal fireproof cotton to fall off, causing damage to the cable and even causing danger. Utility Model Content

[0004] The purpose of the utility model is to provide a low-voltage cable with a reinforced structure to solve the problem that the rubber shell of the cable is easily broken due to gravity during the use of the cable.

[0005] A low-voltage cable with a reinforced structure, comprising

[0006] A rubber layer; a first cavity is provided at the center of the rubber layer; a second cavity is provided around the first cavity; a deformation cavity is also provided in the rubber layer;

[0007] The main conductor is located in the first cavity;

[0008] A secondary conductor; the secondary conductor is located in the second cavity;

[0009] The first cavity and the second cavity are filled with fillers;

[0010] The outer side of the rubber layer is wrapped with a flame retardant layer; the outer side of the flame retardant layer is wrapped with a shielding layer; the outer side of the shielding layer is wrapped with a wear-resistant layer; and the outer side of the wear-resistant layer is provided with a protective cover.

[0011] Furthermore, the first cavity is located at the center of the rubber layer; the cross section of the first cavity is circular;

[0012] The second cavities are arranged in four groups, and are arranged at 90° intervals in pairs; the cross-section of the second cavity is set to be elliptical.

[0013] Furthermore, the main conductor and the secondary conductor are wrapped with an insulating layer.

[0014] Furthermore, the cross section of the deformation cavity is circular; and there are four deformation cavities, each located between two second cavities.

[0015] Furthermore, the filler is configured as a fireproof sponge.

[0016] Furthermore, the shielding layer is configured as braided tinned wire.

[0017] The beneficial effects of the utility model are:

[0018] By providing a rubber layer with a first cavity and a second cavity, the cable can have a certain displacement within the rubber layer. When the cable is bent, the rubber layer will not be directly squeezed, thus preventing the rubber layer from being compressed and causing breakage. At the same time, the deformation cavity provided in the rubber layer increases the deformation resistance of the rubber layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] In the figure, 1, rubber layer; 11, first cavity; 12, second cavity; 13, deformation cavity; 2, main conductor; 3, secondary conductor; 4, filler; 5, flame retardant layer; 6, shielding layer; 7, wear-resistant layer; 8, protective cover; 9, insulation layer. DETAILED DESCRIPTION

[0021] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0023] Example 1

[0024] like Figure 1 As shown:

[0025] A low-voltage cable with a reinforced structure, comprising

[0026] Rubber layer 1; a first cavity 11 is provided at the center of the rubber layer 1; a second cavity 12 is provided surrounding the first cavity 11; the first cavity 11 is located at the center of the rubber layer 1; the first cavity 11 has a circular cross-section; the second cavities 12 are arranged in four groups, spaced 90 degrees apart; the second cavities 12 have an elliptical cross-section. The first and second cavities 11, 12 are filled with a filler 4; the filler 4 is a fireproof sponge. Specifically, the fireproof sponge has flame retardancy, breathability, and shock absorption properties. Filling the cavity with the fireproof sponge reduces cable vibration and prevents the cable from being suspended in the cavity.

[0027] The rubber layer 1 is further provided with a deformation cavity 13; the deformation cavity 13 has a circular cross-section; four deformation cavities 13 are provided, each located between two second cavities 12. The purpose of providing the deformation cavity 13 is to provide deformation space for the rubber layer 1, thereby better relieving external pressure, thereby improving the cable's compressive resistance and protective capabilities.

[0028] The main conductor 2 is located in the first cavity 11; the secondary conductor 3 is located in the second cavity 12; the main conductor 2 and the secondary conductor 3 are wrapped with an insulating layer 9.

[0029] The rubber layer 1 is wrapped with a flame retardant layer 5, which is then wrapped with a shielding layer 6. The shielding layer 6 is a braided tinned wire. The shielding layer 6 is wrapped with a wear-resistant layer 7, which is then covered with a protective cover 8.

[0030] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A low-voltage cable with a reinforced structure, characterized in that: include A rubber layer (1); a first cavity (11) is provided at the center of the rubber layer (1); a second cavity (12) is provided around the first cavity (11); a deformation cavity (13) is also provided in the rubber layer (1); A main conductor (2); the main conductor (2) is located in the first cavity (11); A secondary conductor (3); the secondary conductor (3) is located in the second cavity (12); The first cavity (11) and the second cavity (12) are filled with a filler (4); The outer side of the rubber layer (1) is wrapped with a flame retardant layer (5); the outer side of the flame retardant layer (5) is wrapped with a shielding layer (6); the outer side of the shielding layer (6) is wrapped with a wear-resistant layer (7); and the outer side of the wear-resistant layer (7) is provided with a protective cover (8).

2. A low-voltage cable with a reinforced structure according to claim 1, characterized in that: The first cavity (11) is located at the center of the rubber layer (1); the cross section of the first cavity (11) is circular; The second cavities (12) are arranged in four groups, and are arranged at 90° intervals in pairs; the cross-section of the second cavities (12) is arranged in an elliptical shape.

3. The low-voltage cable with a reinforcement structure according to claim 1, characterized in that: The main conductor (2) and the secondary conductor (3) are wrapped with an insulating layer (9).

4. The low-voltage cable with a reinforcement structure according to claim 1, characterized in that: The cross section of the deformation cavity (13) is circular; the deformation cavity (13) is arranged in four pieces, and is respectively located between two second cavities (12).

5. The low-voltage cable with a reinforcement structure according to claim 1, characterized in that: The filler (4) is configured as a fireproof sponge.

6. The low-voltage cable with a reinforcement structure according to claim 1, characterized in that: The shielding layer (6) is configured as braided tinned wire.

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