Connecting piece, sealing connector and waterproof wire duct

Abstract

The invention relates to the technical field of waterproof wire ducts, and discloses a connecting piece, a sealing connector and a waterproof wire duct, the connecting piece comprises a transverse piece and a side piece, one end of the transverse piece is vertically connected with one end of the side piece, the other end of the transverse piece is provided with at least one connecting part A, andthe other end of the side piece is provided with at least one connecting part B; a sealing gasket A and a sealing gasket B are laid on the inner wall of the transverse piece and the inner wall of theside piece respectively, the connecting face of the connecting part B is an inclined face, a matching piece is further included, the matching piece is provided with a matching face connected with theconnecting face of the connecting part B in a matched mode, and the matching piece, the connecting part A and the connecting part B of the other connecting piece are connected through connecting pieces. The connecting surface of the connecting part B is an inclined surface, and when the connecting part B is locked through the connecting piece, the matching piece can apply transverse and longitudinal forces to the side pieces, so that the two connecting pieces are connected more tightly, and the sealing performance of the sealing connector is enhanced.

Description

technical field [0001] The invention relates to the technical field of waterproof wire grooves, in particular to a connecting piece, a sealed connector and a waterproof wire groove. Background technique [0002] At present, many cities in China are developing rail transit, especially the construction of subways. Since the subway is built in the tens of meters below the surface, groundwater will seep into the infrastructure of the subway platform. At present, the marble or tiles on the floor of the subway platform are dry-pasted, and the dry-pasted gray and yellow sand account for the vast majority. , the internal crispness is bound to be permeable, and these permeable water contains strong alkaline components brought by the building structure concrete, which is very corrosive. After the laying of ground pipelines for a considerable part of the AFC system of subways, the strong and weak current pipelines are all infiltrated by groundwater, especially in coastal cities along ...

AI Technical Summary

Problems solved by technology

[0003] If water accumulates in the AFC ground trunking for a long time, the following hazards will occur: firstly, the insulation layer of the cable is easily corroded if the cable is soaked in alkaline water for a long time, which may cause short circuit of the equipment, system paralysis, or electric shock accident; The accumulated water in the ground trunking of the AFC will generate water vapor due to the heating of the cable when it is energized. Electricity on the casing of the machine will cause electric shock to passengers. First, it will cause direct safety accidents for passengers. Second, it will cause confusion in the flow of people and even cause stampede accidents.

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