Dustproof flameout switch

Abstract

The invention discloses a dustproof flameout switch, and belongs to the field of a stop switch for a gasoline engine. The switch is used for the gasoline engine. A rotary handle is connected with a switch seat through a handle shaft, a steel ball pressure spring is arranged in a steel ball positioning hole, and the other end of the steel ball pressure spring is contacted with a positioning steel ball and presses the positioning steel ball on a steel ball guide rail. A movable contact spring is placed in the contact pressure spring limiting hole, and the other end of the movable contact springis pressed on the movable contact. The moving contact piece is installed in the clamping jaw fixing groove and rotates along with the rotating handle. The moving contact piece makes contact with the static contact A and the static contact B9. A dustproof ring is clamped in the dustproof ring fixing groove, and the dustproof ring, the rotating handle and the switch base form a closed cavity for accommodating the static contact A, the static contact B and the moving contact piece. A static contact B is arranged in the static contact B fixing groove, and a static contact A is arranged in the static contact A fixing groove. Protrusions allowing the positioning steel balls to cross are arranged on the steel ball guide rails. Poor contact of a switch outlet head can be avoided, normal work of agasoline engine is guaranteed, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of a flameout switch for a gasoline engine, in particular to a dust-proof flameout switch. Background technique [0002] At present, the flameout switch for gasoline engines in the prior art generally achieves the disengagement or contact of the dynamic and static contacts of the switch by means of rotation or pressing, so as to achieve the purpose of starting and flameout of the gasoline engine; The machines and tools used are different, and the working environment is also different. If it is used in a dusty environment or in the rain, the dynamic and static contacts of the flameout switch will often be covered by dust, resulting in poor contact, or caused by accumulated water. A short circuit occurs in the communication, which increases the failure rate of the gasoline engine. After a long time, it will rust and even fail to work normally. Contents of the invention [0003] The purpose of the present invention is...

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Problems solved by technology

[0002] At present, the flameout switch for gasoline engines in the prior art generally achieves the disengagement or contact of the dynamic and static contacts of the switch by means of rotation or pressing, so as to achieve the purpose of starting and flameout of the gasoline engine; The machines and tools used are different, and the working environment is also different. If it is used in a dusty environment or in the rain, the dynamic and static contacts of the flameout switch will often be covered by dust, resulting in poor contact, or caused by accumulated water. A short circuit will occur in the communication, which will increase the failure rate of the gasoline engine, cause corrosion over time, and even fail to work normally.

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