Waterproof plastic sleeve for inner conductor

Abstract

The invention discloses a waterproof plastic sleeve for an inner conductor. The waterproof plastic sleeve comprises the inner conductor and a rubber sleeve, wherein the inner conductor comprises a guide head body front cover and a guide head body, and the guide head body front cover is connected with the guide head body; the rubber sleeve is in a straight cylinder shape, the upper end and the lower end of the rubber sleeve are open, the upper end of the cylinder opening is contracted to form an upper port, wherein the diameter of the upper port is smaller than the diameter of the guide head body, the upper port is used for sealing and sleeving the top end of the guide head body and being in contact with the guide head body front cover, and the diameter of the lower port of the cylinder opening is larger than the maximum diameter of the inner conductor. According to the waterproof plastic sleeve, the structure with the upper end contracted and the lower end opened is adopted, so that the difficulty during installing is reduced; the straight cylinder-shaped structure with the upper end contracted is adopted, so that once the sealing property of the upper end is not enough and the water leakage phenomenon occurs, water can be discharged or evaporated from the lower end of the opening along the inner wall of the plastic pipe, and the phenomenon of water accumulation is avoided; andmeanwhile, when the structure is adopted for processing and injection molding, only one set of mold is needed, and demolding is easy, so that the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of waterproof casings, in particular to a waterproof plastic casing for inner conductors. Background technique [0002] The existing inner conductor waterproof plastic sleeve has tight closures on the top and the bottom, and great strength is required during installation, which requires relatively high physical strength for the installers. Because the top end and the bottom end have different closing sizes, multiple sets of molds are required for injection molding, and demoulding is very difficult, resulting in low production efficiency and high cost. At the same time, due to long-term use, the sealing effect of the waterproof plastic sleeve is weakened, and water leakage will occur. Because the bottom end is also tightly closed, water will remain in the casing and cannot be discharged, causing the inner conductor to soak for a long time and short circuit. Contents of the invention [0003] In order to solve the ab...

AI Technical Summary

Problems solved by technology

Due to the different sizes of the top end and the bottom end, multiple sets of molds are required for injection molding and it is very difficult to demould, resulting in low production efficiency and high cost

At the same time, the sealing effect of the waterproof plastic sleeve is weakened due to long-term use, and there will be water leakage, because the bottom end is also tightly closed, and the water will remain in the sleeve and cannot be discharged, causing the inner conductor to soak for a long time and short circuit

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