Wire guiding sheath for vehicle

Abstract

The invention relates to a wire guiding sheath for a vehicle. The wire guiding sheath comprises an inner pipe; and a metal layer which comprises at least one wire rod which is wound on the outer peripheral surface of the inner pipe along an axial direction of the inner pipe, wherein the at least one wire rod is physically covered on the outer peripheral surface of the inner pipe and can be physically and completely stripped from the inner pipe. The guiding sheath further comprises an outer layer wrapping the metal layer, the outer layer is physically connected to the peripheral face of the metal layer in a covering mode and can be physically and completely stripped from the metal layer, the metal layer can be fixed and prevented from being abraded and corroded, and classification treatmentis facilitated after replacement. The at least one wire rod is radially embedded into the outer layer; the depth of the at least one wire embedded into the outer layer is not less than that of the rotary concave part, so that the bonding stability among the layers can be improved to avoid mutual dislocation. The thickness of the metal layer is larger than that of the outer layer, and the situation that the catheter is not prone to being bent and installed due to the fact that the outer layer is too thick is avoided.

Description

technical field [0001] The present invention relates to a conduit for vehicles. Background technique [0002] The brake device and speed change device of a general bicycle are controlled by traction through a wire, and the wire includes an inner wire and a set of guide tubes arranged on the outer periphery of the inner wire. The conduit allows the inner wire to pass through so that the inner wire can slide in the inner space of the conduit, and provides moisture-proof and impact-resistant effects to protect the inner wire. [0003] The existing catheter includes an inner tube, which is usually made of plastic material to provide a smooth inner peripheral surface, which facilitates the sliding movement of the inner wire in the inner tube. However, the inner tube also has a smooth outer peripheral surface which is not conducive to combining with other layers, resulting in misalignment of the inner tube and the layers disposed on its outer periphery during use, resulting in po...

AI Technical Summary

Problems solved by technology

However, the inner tube also has a smooth outer peripheral surface which is not conducive to combining with other layers, resulting in misalignment of the inner tube and the layers arranged on its outer periphery during use, resulting in poor structural stability

In addition, the existing catheters are made of plastic and metal materials, and the layers of the catheters are nested with each other, which also makes it difficult to classify the replaced catheters, and there are shortcomings that need to be improved urgently

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