CN201554961U - A sealing structure for the incoming cable of the electric box - Google Patents

Abstract

A sealing structure of inlet cables of an electronic box comprises an electronic box (1), an inlet pipe (2) and an inlet pipe sealing rubber sleeve (3), and is characterized in that the box body of the electronic box (1) is fixed with and is hermetically connected with the inlet pipe (2) provided with inner screw threads, and the inlet pipe (2) is simultaneously used as an inlet pipe of a cable, the inlet pipe sealing rubber sleeve (3) is arranged in the inlet pipe (2), an inlet pipe pressing sleeve (4) is arranged close to the outer side of the inlet pipe sealing rubber sleeve (3), and the outer end of the inlet pipe pressing sleeve (4) is provided with a hollow hold-down bolt (5) which is connected with the inlet pipe (2) through screw threads. The sealing structure has the advantages of reasonable and compact structure, convenient installation, reliable sealing and low cost, and the inlet pipe of the box body and the inlet cable are sealed without winding any strips.

Description

A sealing structure for the incoming cable of the electric box

technical field

The utility model relates to a sealing structure for an incoming cable of an electric box.

Background technique

In the power system, the existing high and low voltage distribution boxes for outdoor use, the cable grounding box in the cable grounding device, the cable grounding protection box, the cable cross interconnection box, etc., are almost all made of stainless steel in order to ensure sufficient mechanical properties. The contact resistance of the copper conductor in the box and the electrical performance requirements such as the withstand voltage of the box wall are easy to meet, but because the outdoor high and low voltage distribution box, cable grounding box, cable grounding protection box, and cable cross-connection box are in the cable There are strict sealing requirements in the operation of the line, especially the sealing of the box inlet pipe and the inlet cable, often only rely on the tape used for sealing, such as waterproof tape, waterproof glue, etc. If the seal is more reliable, only the The distance between the inlet pipes should be increased to facilitate the wrapping of the sealing strip, but this can only increase the size of the box, and the use of strip sealing requires high installation technology and high requirements for the strip. High, its sealing performance is poor, and it is time-consuming and laborious to install.

Invention content:

The technical problem to be solved by the utility model is to provide an electrical box inlet wire with reasonable structure, compact structure, no need to wrap any strips for sealing the inlet pipe of the box body and the inlet cable, easy installation, reliable sealing, and low cost. Cable sealing structure.

In order to solve the above-mentioned problems, a sealing structure of an electric box incoming cable of the utility model includes an electric box, an incoming pipe, a sealing rubber sleeve for an incoming pipe, a crimping sleeve for an incoming pipe, and a compression bolt; it is characterized in that: On the box body of the electric box, the inlet pipe with internal thread is fixed and sealed and connected, which is also used as the inlet hole of the cable. The outer end of the sealing rubber sleeve is provided with a crimping sleeve for the inlet pipe, and the inner cavity of the crimping sleeve for the inlet pipe is tapered; a hollow compression bolt is provided at the outer end of the crimping sleeve for the inlet pipe. Inlet pipe threaded connection.

The inner and outer diameters of the sealing rubber sleeve of the inlet pipe are interference fit with the outer diameter of the incoming cable and the inner diameter of the inlet pipe respectively.

The utility model adopts a sealing structure for the incoming cable of the electric box, which has a reasonable and compact structure, the sealing of the incoming pipe of the box body and the incoming cable does not need to be wrapped with any tape, convenient installation, reliable sealing, and low cost The advantages.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic view of the utility model in use.

Detailed ways

As shown in Figures 1 to 2, a sealing structure of an electric box incoming cable of the present invention includes an electric box 1, an incoming pipe 2, an incoming pipe sealing rubber sleeve 3, an incoming pipe crimping sleeve 4 and Compression bolt 5; It is characterized in that: fixed and sealed connection is provided with the inlet pipe 2 of inner thread on the box body of described electrical box 1, and it simultaneously serves as the wire inlet hole of cable, is provided with in the inlet pipe 2 The inlet pipe sealing rubber sleeve 3 is provided with an inlet pipe crimping sleeve 4 close to the outer end of the inlet pipe sealing rubber sleeve 3, and the inner cavity of the inlet pipe crimping sleeve 4 is tapered; The outer end of the pipe crimping sleeve 4 is provided with a hollow compression bolt 5 which is threadedly connected with the inlet pipe 2 .

The inner and outer diameters of the inlet pipe sealing rubber sleeve 3 are interference fit with the outer diameter of the incoming cable 6 and the inner diameter of the inlet pipe 2 respectively.

The inlet pipe sealing rubber sleeve 3 is made of silicon rubber material.

The above-described embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model. Therefore, all equivalent changes made according to the shape, structure and principle of the present utility model should be included in the scope of the present utility model. Within the protection scope of the present utility model.

Claims (3)

1. A sealing structure for an electric box inlet cable, comprising an electric box (1), an inlet pipe (2) and an inlet pipe sealing rubber sleeve (3); it is characterized in that: in the electric box (1) The inlet pipe (2) with internal thread is fixed and sealed on the box body, and it is also used as the inlet hole of the cable. The inlet pipe (2) is provided with an inlet pipe sealing rubber sleeve (3). A line pipe crimping sleeve (4) is provided on the outer end of the line pipe sealing rubber sleeve (3), and a hollow compression bolt (5) is provided on the outer end of the line pipe crimping sleeve (4), which is connected with the The inlet pipe (2) is threaded. 2. The sealing structure of the incoming cable of the electric box according to claim 1, characterized in that: the inner cavity of the crimping sleeve (4) of the incoming pipe is tapered. 3. A sealing structure for an incoming cable of an electric box according to claim 1, characterized in that: the inner and outer diameters of the sealing rubber sleeve (3) of the incoming line pipe are respectively the same as the outer diameter of the incoming cable (6). diameter, the inner diameter of the inlet pipe (2) is an interference fit.