Composite flexible cable

Abstract

The invention discloses a composite flexible cable, which comprises an elastic base pipe. There is a sealed channel in the middle of the base pipe. More than two clamping grooves are formed on the outer wall of the base tube around the base tube. An elastic outer protective layer is installed in the slots, one end of the support part is inserted into the slot and fixed, the outer protective part is bent relative to the support part and serves as the outermost protective layer of the cable, and the inner surface of the arc-shaped wrapping part is fixed and installed There is a cable core wire, and a supporting airbag is filled in the filling cavity. When the supporting airbag is damaged, the elastic outer protective layer is wound around the outside of the cable core wire starting from the arc-shaped wrapping part. The cable of the present invention has very good elastic cushioning ability after being sheared and squeezed, and can destroy the supporting airbag after being subjected to extreme shearing, and the elastic outer protective layer originally used for cushioning and supporting is wrapped around the cable core wire The exterior strengthens the external strength of the cable core wire, thereby providing secondary protection.

Description

technical field [0001] The invention relates to the field of cables, in particular to a composite flexible cable. Background technique [0002] Cables are used for signal and power transmission. Cables are laid in a wide range of fields, but most of them are laid in the ground. The cables laid in the ground cannot be seen from the outside, so they are easy to be damaged by external equipment cutting, so Buried cables require better buffering capabilities and higher strength. Therefore, it is necessary to arrange a buffer structure and a reinforcement structure inside the cable. Once the shear force is too large, the buffer structure generally has no effect and directly relies on the reinforcement structure to resist shearing. However, in many cases, the reinforcement structure does not need to be used. The general external force passes The buffer structure can be buffered and supported, so it is necessary to set up both a strengthening structure and a buffer structure, resu...

AI Technical Summary

Problems solved by technology

[0002] Cables are used for signal and power transmission. Cables are laid in a wide range of fields, but most of them are laid in the ground. The cables laid in the ground cannot be seen from the outside, so they are easy to be damaged by external equipment cutting, so Buried cables require better buffering and higher strength

Therefore, it is necessary to arrange a buffer structure and a reinforcement structure inside the cable. Once the shear force is too large, the buffer structure generally has no effect and directly relies on the reinforcement structure to resist shearing. However, in many cases, the reinforcement structure does not need to be used. The general external force passes The buffer structure can buffer the support, so it is necessary to set up both the reinforcement structure and the buffer structure, resulting in a complicated internal structure of the cable, and the safety cannot be guaranteed

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