Double-door combination sealing piece for plate cold bending electric switch chassis

Abstract

The invention relates to a double-door combination sealing piece for a plate cold bending electric switch chassis. The double-door combination sealing piece comprises a boss clamped with a rectangularclamping hole in an electric box main body, and a coating structure matched with the edge port of the outer vertical surface of the electric box main body; the coating structure is connected with theboss through a connecting part; and concave clamping grooves with a height difference are formed between the surface of the connecting part and the highest point surfaces of the coating structure andthe boss. The double-door combination sealing piece is simple in structure and convenient to use, and effectively improves the dust and water prevention sealing grade of the double-door electric boxto IP55; through arrangement of a four-edge frustum, the clamping fit with an electric box column body can be realized; an outer profile edge is provided for matching with grooves on left and right doors of the electric box main body; and through arrangement of tension holes, the excellent elastic recovery capacity under the working condition of frequent door sheet compression is achieved.

Description

technical field [0001] The invention relates to the field of sealing equipment for electrical switch boxes, in particular to a double-door combined seal used for plate-type cold-bending electrical switch boxes. Background technique [0002] At present, for the sealing of the overlapping part of the door panels of the traditional side-by-side electric switch box, the existing conventional method is to use the purchased sponge foam strip with one-sided adhesive glue on the overlapping part of the door panels and the overlapping part of the box body. Can play a short-term dustproof and waterproof, users complain from time to time. There are four hidden dangers of this purchased sponge strip: first, the cutting surface is sticky to dust and absorb water; second, the internal micropores that have been foamed are connected to each other, which is a permeation channel for dust and water to mix; third, the adhesive has poor weather resistance. Opening the door panel in the area may...

AI Technical Summary

Problems solved by technology

There are four hidden dangers of this purchased sponge strip: first, the cutting surface is sticky to dust and absorb water; second, the internal micropores that have been foamed are connected to each other, which is a permeation channel for dust and water to mix; third, the adhesive has poor weather resistance. Opening the door panel in the area may fall off, causing the cabinet to lose its IP rating; Fourth, the door panel is frequently opened and pressed, and the elastic recovery of the sponge foam strip is insufficient, resulting in loss of sealing performance

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