Anti-fracture low-voltage cable

Abstract

The utility model discloses an anti-fracture low-voltage cable. The anti-fracture low-voltage cable comprises a conductor, an insulating layer is arranged on the outer side of the conductor; a fixing layer is arranged on the outer side of the insulating layer; a filling layer is arranged on the outer side of the fixing layer; a shielding layer is arranged on the outer side of the filling layer; a wrapping layer is arranged on the outer side of the shielding layer; an anti-bending layer is arranged on the outer side of the wrapping layer; an outer protective layer is arranged on the outer side of the anti-bending layer; and an annular groove is formed in the anti-bending layer. Through the anti-bending layer with the annular grooves, when the cable is bent, the bending part firstly extrudes and deforms the annular grooves, the overall structure of rubber cannot be damaged, meanwhile, due to the fact that the annular grooves are formed in the anti-bending layer, the inner wall and the outer wall can be prevented from being broken at the same time, and due to the fact that the annular grooves in the inner wall and the outer wall are arranged in a staggered mode, the bending resistance of the cable is improved. The thickness of the anti-bending layer is not reduced, the structural strength of the anti-bending layer is guaranteed, and meanwhile the probability of rubber damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a fracture-proof low-voltage cable. Background Art

[0002] A low-voltage 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, low-voltage cables are essential equipment, responsible for transmitting electrical energy from the power source to various devices. Low-voltage 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 low-voltage cables, the cables may bend downward due to their own weight and bending stress. 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 utility model aims to provide a low-voltage cable that is resistant to breakage, so as to solve the problem that the rubber layer is easily broken due to gravity during the use of the cable.

[0005] A break-resistant low-voltage cable comprising

[0006] Conductor; an insulating layer is provided on the outside of the conductor; a fixing layer is provided on the outside of the insulating layer; a filling layer is provided on the outside of the fixing layer; a shielding layer is provided on the outside of the filling layer; a wrapping layer is provided on the outside of the shielding layer; an anti-bending layer is provided on the outside of the wrapping layer; an outer sheath is provided on the outside of the anti-bending layer;

[0007] An annular groove is provided on the anti-bending layer.

[0008] Furthermore, the anti-bending layer is configured to be chloroprene rubber; annular grooves are provided on both the inner and outer walls of the anti-bending layer, and the annular grooves on the inner wall and the annular grooves on the outer wall are arranged alternately.

[0009] Furthermore, the cross section of the annular groove is a triangular notch.

[0010] Furthermore, the shielding layer is configured as a tinned wire mesh structure.

[0011] Furthermore, a signal cable is arranged in the filling layer; and the signal cable is arranged around the outside of the fixing layer.

[0012] Furthermore, the filling layer is configured as fire-resistant wool.

[0013] Furthermore, the wrapping layer is configured as a polyester film.

[0014] Furthermore, the outer protective layer is configured to be polyurethane.

[0015] The beneficial effects of the utility model are:

[0016] The anti-bending layer has annular grooves, so when the cable bends, the bending part first squeezes and deforms the annular grooves, which will not damage the overall structure of the rubber. At the same time, since there are also annular grooves inside the anti-bending layer, the rupture of the inner and outer walls can be avoided at the same time. At the same time, since the annular grooves on the inner and outer walls are staggered, the thickness of the anti-bending layer will not be reduced, which ensures the structural strength of the anti-bending layer while reducing the probability of rubber damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model;

[0018] Figure 2 This is a cross-sectional view of the device;

[0019] Figure 3 Schematic diagram of the bending-resistant layer.

[0020] In the figure, 1, conductor; 2, insulation layer; 3, fixing layer; 4, filling layer; 5, shielding layer; 6, wrapping layer; 7, anti-bending layer; 71, annular groove; 8, outer sheath; 9, signal cable. 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 Figures 1 to 3 As shown:

[0025] A break-resistant low-voltage cable comprising

[0026] Conductor 1: Specifically, conductor 1 is made of high-purity oxygen-free copper. High-purity oxygen-free copper has good electrical conductivity, stable transmission, low consumption during use, and energy-saving and power-saving.

[0027] An insulating layer 2 is provided on the outside of the conductor 1; specifically, the insulating layer 2 is configured as polyvinyl chloride. The uniformly thick insulating layer effectively prevents current breakdown, ensuring safe cable use, while also being wear-resistant, oil-resistant, fire-resistant, and frost-resistant. A fixing layer 3 is provided on the outside of the insulating layer 2; specifically, the fixing layer 3 is configured as a loose tube, which is a tube made of polypropylene or nylon that protects the optical fiber from internal stress and external lateral pressure. A filling layer 4 is provided on the outside of the fixing layer 3; the filling layer 4 is configured as fire-resistant cotton.

[0028] A signal cable 9 is arranged in the filling layer 4 ; the signal cable 9 is arranged around the outside of the fixing layer 3 .

[0029] A shielding layer 5 is provided outside the filling layer 4 ; the shielding layer 5 is provided as a tinned wire mesh structure.

[0030] A wrapping layer 6 is provided on the outside of the shielding layer 5; the wrapping layer 6 is set to be a polyester film, which can increase the waterproof and insulating properties of the structure. When the material inside the wrapping layer 6 is damaged, the wrapping layer 6 can further protect it to avoid the internal conductor 1 being directly exposed to the outside world and causing the risk of leakage.

[0031] The outer surface of the wrapping layer 6 is provided with an anti-bending layer 7, which is provided with an annular groove 71. The anti-bending layer 7 is made of chloroprene rubber. Both the inner and outer walls of the anti-bending layer 7 are provided with annular grooves 71, with the inner and outer wall annular grooves 71 arranged alternately. The cross-section of the annular grooves 71 is a triangular notch.

[0032] By having the anti-bending layer 7 with the annular groove 71, when the cable is bent, the bending part will first squeeze and deform the annular groove 71, which will not damage the overall structure of the rubber. At the same time, since there are also annular grooves 71 inside the anti-bending layer 7, the rupture of the inner and outer walls can be avoided at the same time. At the same time, since the annular grooves 71 on the inner and outer walls are arranged in an staggered manner, the thickness of the anti-bending layer 7 will not be reduced, thereby ensuring the structural strength of the anti-bending layer 7 while reducing the probability of rubber damage.

[0033] An outer protective layer 8 is provided on the outer side of the anti-bending layer 7; the outer protective layer 8 is provided with polyurethane.

[0034] 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 break-resistant low-voltage cable, characterized in that: include A conductor (1); an insulating layer (2) is provided on the outside of the conductor (1); a fixing layer (3) is provided on the outside of the insulating layer (2); a filling layer (4) is provided on the outside of the fixing layer (3); a shielding layer (5) is provided on the outside of the filling layer (4); a wrapping layer (6) is provided on the outside of the shielding layer (5); an anti-bending layer (7) is provided on the outside of the wrapping layer (6); an outer protective layer (8) is provided on the outside of the anti-bending layer (7); An annular groove (71) is provided on the anti-bending layer (7).

2. The anti-fracture low-voltage cable according to claim 1, characterized in that: The anti-bending layer (7) is configured as chloroprene rubber; annular grooves (71) are provided on both the inner and outer walls of the anti-bending layer (7), and the inner wall annular grooves (71) and the outer wall annular grooves (71) are arranged in a staggered manner.

3. The anti-fracture low-voltage cable according to claim 1, characterized in that: The cross section of the annular groove (71) is a triangular notch.

4. The anti-fracture low-voltage cable according to claim 1, characterized in that: The shielding layer (5) is configured as a tinned wire mesh structure.

5. The anti-fracture low-voltage cable according to claim 1, characterized in that: A signal cable (9) is arranged in the filling layer (4); the signal cable (9) is arranged around the outside of the fixing layer (3).

6. The anti-fracture low-voltage cable according to claim 1, characterized in that: The filling layer (4) is configured as fire-resistant wool.

7. The anti-fracture low-voltage cable according to claim 1, characterized in that: The wrapping layer (6) is configured as a polyester film.

8. The anti-fracture low-voltage cable according to claim 1, characterized in that: The outer protective layer (8) is configured as polyurethane.

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