Cable inlet sealing device and distribution box with the sealing device

Abstract

An electric cable incoming line sealing device includes a structural main body, a sealing piece sleeved on the electric cable incoming line in a hooping manner, and a mounting piece used for mounting the structural main body on a distribution box, wherein the structural main body includes a cubic lower cover and a cubic upper cover; the end part of the cover opening of the lower cover is matched with a wiring opening of the distribution box, and is connected with the distribution box through the mounting piece; the upper cover is sleeved at the outer part of the lower cover, and is fixed on the lower cover through hardware; at least one corresponding through hole is arranged in the cover top surface, opposite to the cover opening, of the upper cover, and at least one corresponding through hole is arranged in the cover top surface, opposite to the cover opening, of the lower cover, and the through holes are electric cable entrance holes; the sealing piece is a diaphragm seal made of flexible glue with enough toughness; and the diaphragm seal is clamped between the upper cover and the lower cover, and separates the electric cable entrance holes of the upper and the lower covers on the two sides of the diaphragm seal. The electric cable incoming line sealing device provided by the invention has a simple structure and is low in cost, holes are not needed to be field formed in the distribution box, and the sealing device adapts to various cables of different diameters for entrance.

Description

technical field [0001] The present invention relates to a sealing device used on an outdoor power distribution box for sealing when entering lines, in particular to a sealing device that adopts a soft rubber film to realize sealing, and also to a power distribution box with the sealing device . Background technique [0002] The distribution box is a power distribution device that assembles switchgear, measuring instruments, protective appliances and auxiliary equipment in the box according to the requirements of electrical wiring. The distribution box for outdoor work requires that the hole where the cable enters and exits on the side wall can be sealed to prevent the entry of rainwater and dust. The prior art usually uses cable entry glands to achieve this. like figure 1 , 2 As shown, the existing cable inlet gland is a cable inlet and outlet accessory similar to a bolt structure with a through hole, generally consisting of a gland main body 21', a gland fastening nut 22...

AI Technical Summary

Problems solved by technology

Its shortcoming is that when the distribution box is distributed and wired on site, the cable through hole on the distribution box needs to be opened when the site is constructed, because the diameter and quantity of the cable often change due to different power distribution needs. It has great randomness, and the sealing of the cable inlet and outlet can only be completed after the holes are opened at the installation site of the distribution box according to the actual situation of the cable and the inlet glands of the corresponding specifications are equipped.

In this process, it is easy to cause problems such as poor sealing due to the construction skills of the construction personnel, so that water and dust enter the distribution box and cause accidents.

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