Bending-resistant flexible cable

Abstract

The utility model provides an anti-bending flexible cable, and relates to the technical field of cables. The cable comprises a cable main body, a cable filling layer is wrapped outside the cable main body, a braided sheath is wrapped outside the cable filling layer, a protective layer is arranged outside the braided sheath, and a rubber elastic particle layer is arranged between the braided sheath and the protective layer. According to the utility model, the braided sheath, the protection layer, the rubber elastic particle layer, the stranded steel wire layer and other components are arranged, the braided sheath can improve the impact resistance of the cable, the damage to the interior of the cable caused by external extrusion is avoided, and a good physical protection effect is provided for the cable; the protection layer can be staggered according to the bending degree of the cable and generate a certain degree of deformation, so that the bending resistance of the device is improved, the twisted steel wire layer can improve the toughness of the cable, the interior of the cable is protected, the cable is prevented from being broken during stretching, and it is ensured that the cable can stably transmit signals.

Description

Technical Field

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

[0002] Cables are used in different types according to different requirements and environments. Flexible cables are one type of cables. Flexible cables are the preferred cables for signal transmission carriers in drag chain motion systems. They are also known as: drag chain cables, towing cables, mobile cables, robot cables, etc. They can meet various cable requirements such as bending, wear resistance and protection.

[0003] According to patent number CN219916782U, a flexible cable is disclosed, including a protective cover, a fireproof layer is fixedly connected to the inner wall of the protective cover, a flexible folding layer is fixedly connected to the inner wall of the fireproof layer, an electromagnetic shielding layer is fixedly connected to the inner wall of the flexible folding layer, and a first insulating layer is fixedly connected to the inner wall of the electromagnetic shielding layer.

[0004] During the implementation of the above solution, the springs between the limit rings can prevent the cable protective cover from rubbing against the ground. However, during the implementation of the above solution, the cable's bending resistance is insufficient, and the cable is prone to internal breakage after repeated bending, thereby affecting the stability of the cable transmission signal. In severe cases, it may even cause safety accidents such as leakage. To this end, we provide a bending-resistant flexible cable to solve the above problem. Utility Model Content

[0005] The purpose of the present invention is to provide a bending-resistant flexible cable in order to solve the above problems, so as to solve the problem in the prior art that the bending resistance of the cable is insufficient and the internal components thereof are easily damaged, thus affecting the normal use of the cable.

[0006] The utility model is achieved through the following technical solutions: a bending-resistant flexible cable, comprising a cable body, the outside of the cable body is wrapped with a cable filling layer, the outside of the cable filling layer is wrapped with a braided sheath, the outside of the braided sheath is provided with a protective layer, a rubber elastic particle layer is provided between the braided sheath and the protective layer, and the outside of the protective layer is wrapped with a twisted steel wire layer.

[0007] Preferably, the braided sheath, the protective layer and the rubber elastic particle layer are bonded together by an adhesive, so that the braided sheath can play a role of physical protection.

[0008] Preferably, the cable insulation sleeve is arranged on the outside of the cable copper wire, and the cable insulation sleeve is made of XLPE material, and the cable insulation sleeve plays a role in blocking the power supply.

[0009] Preferably, the cable body comprises a plurality of cable wires twisted together, the cable wires are composed of cable copper wires and a cable insulation sheath, and the cable insulation sheath plays a role of insulation protection.

[0010] Preferably, the outside of the twisted steel wire layer is wrapped with a fireproof and heat-insulating layer, and the outside of the fireproof and heat-insulating layer is wrapped with a cable sheath, and the fireproof and heat-insulating layer has the effect of fireproofing and heat-insulating.

[0011] Preferably, the outer sheath of the cable is provided with a plurality of corrugated bending tubes, which are distributed outside the cable sheath according to actual cable burial requirements. The corrugated bending tubes can reduce the degree of damage to the cable sheath caused by friction with the ground.

[0012] The utility model provides a bending-resistant flexible cable, which has the following beneficial effects:

[0013] The utility model is provided with components such as a braided sheath, a protective layer, a rubber elastic granular layer and a twisted steel wire layer. The braided sheath can improve the impact resistance of the cable, prevent external extrusion from damaging the inside of the cable, and provide better physical protection for the cable. The rubber elastic granular layer can be dislocated and produce a certain degree of deformation according to the bending degree of the cable, thereby improving the bending resistance of the device. The twisted steel wire layer can improve the toughness of the cable and protect the inside of the cable, preventing the cable from breaking when stretched, ensuring that the cable can transmit signals stably, and reducing the probability of safety accidents such as leakage of the cable.

[0014] The utility model can block fire and high temperature to a certain extent by setting a fireproof and heat-insulating layer, reduce the damage of fire to cables, and improve the protection effect of cables. The setting of the corrugated bending tube can prevent the cable outer skin from contacting with the ground, avoid the cable outer skin from being damaged due to friction with the ground during laying, and improve the safety of cable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a disassembled diagram of the overall structure of the utility model;

[0017] Figure 3 It is a structural cross-sectional view of the present utility model.

[0018]

Main component symbol description

[0019] 1. Cable body; 11. Cable line; 112. Cable copper wire; 113. Cable insulation sleeve; 3. Cable filling layer; 4. Braided sheath; 5. Protective layer; 6. Rubber elastic granular layer; 7. Twisted steel wire layer; 8. Fireproof and heat-insulating layer; 9. Cable outer sheath; 10. Corrugated bent tube. DETAILED DESCRIPTION

[0020] An embodiment of the utility model provides a bending-resistant flexible cable.

[0021] See also Figure 1 、 Figure 2 and Figure 3 , including the cable body 1, the materials and objects used or involved in this application are all existing technologies, and will not be described in detail in this application.

[0022] The cable body 1 includes multiple strands of cable wire 11 twisted together. The cable wire 11 is composed of cable copper wire 112 and cable insulation sleeve 113. The cable insulation sleeve 113 is arranged on the outside of the cable copper wire 112. The cable insulation sleeve 113 is made of XLPE material, which provides good electrical insulation effect for the cable, prevents current leakage, short circuit and external interference in the cable, ensures signal quality and safe operation of cable equipment. The cable copper wire 112 is made of pure copper, which can provide excellent electrical conductivity and ensure that electrical signals can be transmitted efficiently.

[0023] The outside of the cable body 1 is wrapped with a cable filling layer 3. The cable filling layer 3 is made of polypropylene, which can not only fill the gaps inside the cable, increase flexibility, and provide additional insulation protection, but also increase the protection between the multiple cable strands 11, reduce the probability of the cable insulation sleeve 113 being damaged due to friction between the multiple cable strands 11 when the cable is bent, extend the service life of the cable, and effectively reduce the situation where the cable breaks after multiple bending.

[0024] The outside of the cable filling layer 3 is wrapped with a braided sheath 4. The braided sheath 4 is made of aramid fiber material and has the advantages of high strength, high modulus, high temperature resistance, corrosion resistance, and low density. It is non-conductive itself and can form secondary insulation protection for the cable body 1. It has good impact resistance and can prevent the cable from being stepped on during the laying process and causing damage to the internal cable line 11. It has good fatigue resistance and wear resistance, will not hinder the bending of the cable, and can provide better physical protection for the cable.

[0025] A protective layer 5 is provided on the outside of the braided sheath 4, and a rubber elastic granular layer 6 is provided between the braided sheath 4 and the protective layer 5. The braided sheath 4, the protective layer 5 and the rubber elastic granular layer 6 are bonded together by an adhesive. When the cable is bent, the rubber elastic granular layer 6 will be dislocated and produce a certain degree of deformation according to the degree of bending, thereby increasing the bending resistance of the device and improving the recovery ability of the cable.

[0026] The outer part of the protective layer 5 is wrapped with a twisted steel wire layer 7, which is composed of a plurality of thin steel wires twisted together. The winding mode can increase the toughness of the steel wire, prevent the steel wire from breaking after being bent multiple times, increase the elasticity of the steel wire, improve the bending resistance of the device, protect the internal cable, prevent the cable from breaking under a large stretching force, and improve the flexibility of the device to facilitate the bending and automatic recovery of the cable after bending.

[0027] The outer part of the twisted steel wire layer 7 is wrapped with a fireproof and heat insulation layer 8, which can prevent fire and heat. When a fire occurs outside the cable, the fireproof and heat insulation layer 8 can block the fire and high temperature to a certain extent, reduce the damage of the fire to the cable, and improve the protection effect of the cable.

[0028] The outer part of the fireproof and heat insulation layer 8 is wrapped with a cable outer skin 9, which is mainly made of polyvinyl chloride (PVC), polyethylene (PE), polytetrafluoroethylene (F46), nylon, and polyolefin. It has good physical and mechanical properties, weather resistance, bendability, chemical resistance, and electrical insulation performance, which can protect the cable from external environmental factors such as mechanical damage, moisture intrusion, and chemical corrosion.

[0029] The cable outer skin 9 is externally provided with a plurality of corrugated bending pipes 10, which are distributed on the outer part of the cable outer skin 9 according to the actual cable burying requirements. The adjacent corrugated bending pipes 10 are spaced apart by a certain distance, and the specific distance is determined according to the actual installation requirements of the cable. The corrugated bending pipe 10 can bend with the cable, which can protect the cable outer skin 9. Through the setting of the corrugated bending pipe 10, the cable outer skin 9 can avoid contact with the ground, and the cable can avoid damage to the outer skin caused by friction with the ground during laying, thereby improving the safety of the cable.

[0030] Working principle: In the present application, the cable filling layer 3 can increase the flexibility of the cable and reduce the probability of damage to the cable insulation sleeve 113 caused by the mutual friction of the multiple cable wires 11 during bending. The braided sheath 4 can improve the impact resistance of the cable, avoid damage to the internal cable caused by external pressure, and provide better physical protection for the cable. The rubber elastic particle layer 6 can increase the bending resistance of the cable and improve the recovery ability of the cable when the cable is bent. The twisted steel wire layer 7 can increase the toughness of the cable and protect the internal cable, thereby preventing the cable from breaking during stretching and ensuring the normal use of the device.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A bending-resistant flexible cable, comprising a cable body (1), characterized in that: The cable body (1) is wrapped with a cable filling layer (3) on the outside, the cable filling layer (3) is wrapped with a braided sheath (4) on the outside, a protective layer (5) is provided on the outside of the braided sheath (4), a rubber elastic particle layer (6) is provided between the braided sheath (4) and the protective layer (5), and the protective layer (5) is wrapped with a twisted steel wire layer (7) on the outside.

2. The anti-bending flexible cable according to claim 1, characterized in that: The braided sheath (4), the protective layer (5) and the rubber elastic particle layer (6) are bonded together by an adhesive.

3. The anti-bending flexible cable according to claim 1, characterized in that: The cable body (1) comprises a plurality of cable wires (11) twisted together, and the cable wires (11) are composed of cable copper wires (112) and a cable insulation sheath (113).

4. The anti-bending flexible cable according to claim 3, characterized in that: The cable insulation sleeve (113) is sleeved on the outside of the cable copper wire (112), and the cable insulation sleeve (113) is made of XLPE material.

5. The anti-bending flexible cable according to claim 1, characterized in that: The twisted steel wire layer (7) is wrapped with a fireproof and heat-insulating layer (8) on the outside, and the fireproof and heat-insulating layer (8) is wrapped with a cable sheath (9) on the outside.

6. The anti-bending flexible cable according to claim 5, characterized in that: The cable sheath (9) is externally sheathed with a plurality of corrugated bending tubes (10), and the corrugated bending tubes (10) are distributed outside the cable sheath (9) according to actual cable burial requirements.

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