Magnetic control air pushing type anti-bending cable
A technology of anti-bending and magnetic control, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of cable bending point fatigue, easy cracks, hidden safety hazards, etc., achieve good effect, good bending resistance, and prevent crack effect
Active Publication Date: 2021-07-09
YUNNAN QIANLIE CABLE GRP
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Problems solved by technology
[0003] Cables are generally rolled in rolls during transportation, so the cables have a certain resistance to bending. However, during the installation or use of cables, accidental bends often occur that are much larger than the bending degree of rolling. When a large bend occurs and the original shape cannot be restored in time, it is easy to cause the bending point of the cable to be in a fatigue state all the time, and it is easy to cause this place to age faster than other parts, and it is easy to generate cracks, and even partial damage in severe cases. , there is a certain security risk
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Embodiment 1
[0044] see Figure 1-2 , a magnetically controlled air-push anti-bending cable, which sequentially includes a plurality of cores 3, an insulating layer 2, and a rubber sheath 1 from the inside to the outside, and the insulating layer 2 is filled between the rubber sheath 1 and the plurality of cores 3 In the enclosed space, the outer end of the rubber sheath 1 is fixedly connected with a plurality of evenly distributed magnetic control strips 4. Along the direction of the cable, two adjacent magnetic control strips 4 on non-same straight lines are misaligned with each other, so that the cable is subjected to When the bending force is applied, the distance between two adjacent magnetic control strips 4 on the same straight line is not easy to form an easy bending point of the cable, so that the bending resistance of the cable is better.
[0045] see Figure 3-4 , the inside of the magnetic control strip 4 is dug with a pneumatic magnetic cavity 5, and the wall thickness of the...
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The invention discloses a magnetic control air pushing type anti-bending cable, and belongs to the field of cables. The magnetic control air pushing type anti-bending cable comprises a plurality of wire cores, an insulating layer and a rubber sheath in sequence from inside to outside, when the cable is subjected to bending force, the bending position of the cable can be concentrated in the middle of a magnetic control strip, so that a plurality of magnetic swing cracking balls move towards the two sides respectively, and therefore the cable can be bent conveniently. The inert gas is pushed to gather to the middle part, so that a certain supporting force is generated in the magnetic control strip, and in the process, the bending force needs to overcome the magnetic attraction force between the two separated magnetic swing cracking balls and the supporting force of the gas, so that the actual stress of the rubber sheath at the bending part is reduced, and the cable is further effectively protected from being cracked and damaged due to stress bending; and when the bending force is too large, the movement range of the magnetic pendulum cracking balls is too large, so that a magnetic pendulum rod is broken, at the moment, a rubber repairing liquid in the magnetic pendulum rod overflows, cracks possibly generated when the cable is subjected to the relatively large bending force are effectively repaired, and potential safety hazards are effectively reduced.
Description
technical field [0001] The invention relates to the field of cables, and more specifically relates to a magnetically controlled air push type anti-bending cable. Background technique [0002] The cable is mainly composed of the following 4 parts. ① Conductive wire core: made of high conductivity material (copper or aluminum). According to the requirements of cable softness under laying conditions, each wire core may be formed by twisting a single wire or multiple wires. ②Insulation layer: The insulation material used for cables should have high insulation resistance, high breakdown electric field strength, low dielectric loss and low dielectric constant. Commonly used insulating materials in cables are oil-impregnated paper, polyvinyl chloride, polyethylene, cross-linked polyethylene, rubber, etc. ③ Sealing sheath: protect the insulated wire core from mechanical, moisture, moisture, chemicals, light, etc. damage. For insulation susceptible to moisture, lead or aluminum e...
Claims
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IPC IPC(8): H01B7/18H01B7/02H01B7/17
CPCH01B7/18H01B7/17H01B7/02
Inventor 卜凡强周宗民李龙龙
Owner YUNNAN QIANLIE CABLE GRP