Tumbler switch for tanks and armored vehicles

Abstract

The invention discloses a tumbler switch for tanks and armored vehicles, and relates to the technical field of structures of electronic switches. The tumbler switch comprises an upper shell and a lower shell which are fixedly connected; a sealing washer is arranged between the upper shell and the lower shell; the inside of a cavity formed by the upper shell and the lower shell is provided with a shifting fork and four movable contact arms respectively; the bottom of the lower shell is fixed with four contact columns matched with the four movable contact arms; the upper part of the shifting fork is connected with a ball handle of which the upper part is arranged in a middle hole of the upper shell; and the tumbler switch is characterized in that: the upper end of the upper shell is fixedly connected with a cover plate; the center of the cover plate is provided with a through hole adapted to the ball handle; a sealing gasket is arranged between the cover plate and the upper shell; a copper gasket is arranged between the sealing gasket and the upper shell; and an epoxy resin sealing layer is arranged between the contact columns and the lower shell. The product has good leakproofness, particularly can be used for circuit connection / disconnection or change on surface equipment matched with the tanks and the armored vehicles, and the like, and can keep for 96 hours in a constant temperature and humidity resistant test.

Description

technical field [0001] The invention relates to the structural technical field of electronic switches. Background technique [0002] Usually, the toggle switch is mainly composed of upper and lower housings, handles, contact posts, forks and movable contact arms inside. Since the handle is arranged in the middle hole of the upper housing, the sealing of the middle hole is not strong. Under the conditions of high temperature and high humidity, it is easy to fail, and the tolerance of the product is poor. Contents of the invention [0003] The purpose of the present invention is to design a toggle switch for tanks and armored vehicles with good airtightness, so as to be suitable for high-temperature, high-humidity harsh environments. [0004] The present invention comprises fixedly connected upper and lower casings, a sealing gasket is arranged between the upper and lower casings, a fork and four movable contact arms are respectively arranged in the cavities formed by the u...

AI Technical Summary

Problems solved by technology

[0002] Usually, the toggle switch is mainly composed of upper and lower housings, handles, contact posts, forks and movable contact arms inside. Since the handle is arranged in the middle hole of the upper housing, the sealing of the middle hole is not strong. Under high temperature and high humidity conditions, it is easy to fail, and the product has poor tolerance

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