Air braking system warning lamp switch for automobile and engineering machinery

Abstract

The invention discloses an air braking system warning lamp switch for automobile and engineering machinery. The switch comprises a switch body (1), a contact ring assembly (3), a contact disc assembly (4) and a pressure spring (5), and the pressure spring (5) acts on the contact disc assembly (4); the contact ring assembly (3) is provided with a silver contact (6), and the silver contact (6) is fixed to the contact ring assembly (3) through a riveted structure. By the adoption of the technical scheme of the air braking system warning lamp switch, by improving the product structure, performance of a warning lamp is improved, the failure rate is lowered, the service life of the warning lamp is prolonged, the warning function achieved when the pressure of a braking system is insufficient is guaranteed, and the foundation is laid for large-scale assembling of each type of vehicles.

Description

technical field [0001] The invention belongs to the technical field of automobiles and engineering machinery, and relates to the braking system technology thereof. More specifically, the present invention relates to a warning lamp switch of an automobile and an engineering machinery pneumatic brake system. Background technique [0002] Such as figure 1 As shown, in the prior art, the brake warning light switch of automobile and construction machinery pneumatic brake system is to directly determine the working pressure through the return spring, and the pressure spring 5 with different pressure needs to be produced for the different pressure requirements of the operator; The contact disc assembly 4 and the contact ring assembly 3 which function as a switch are arranged in the switch body; the silver welding rod is arranged on the contact disc assembly 4; the silver solder sheet on the contact ring assembly 3; This will cause the contacts to burn out, resulting in a decrease...

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Problems solved by technology

[0002] like figure 1 As shown, in the prior art, the brake warning light switch of automobile and construction machinery pneumatic brake system is to directly determine the working pressure through the return spring, and the pressure spring 5 with different pressure needs to be produced for the different pressure requirements of the operator; The contact disc assembly 4 and the contact ring assembly 3 which function as a switch are arranged in the switch body; the silver welding rod is arranged on the contact disc assembly 4; the silver solder sheet on the contact ring assembly 3; Causes the contacts to burn out, resulting in a decrease in the reliability of the alarm light and affecting the service life of the alarm

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