Starting switch structure

A starting switch structure comprising:

• a body that is a hollow housing;
• a plunger piston movable in the body, wherein the plunger piston has a first accommodating portion at an end of an axis of the plunger piston for accommodating an end of a guide pin reciprocally moving therein, wherein the guide pin has a head at the end thereof and in the first accommodating portion, wherein the head has a planar surface at an end thereof close to a bottom surface of the first accommodating portion, wherein the guide pin has a contact point at the other end thereof and outside the body, wherein the first accommodating portion has a butting portion, formed as a single piece with the plunger piston, at the bottom surface thereof, wherein the butting portion defines a ring-shaped planar surface perpendicular to the axis and is configured to make surface-to-surface type contact with the planar surface of the head;
• an excitation portion wound in the body and around the end of the plunger piston arranged with the first accommodating portion, wherein the plunger piston and the guide pin move in a first direction when the excitation portion excites, while the plunger piston and the guide pin move in a second direction after the excitation portion has finished exciting;
• a butting part being removable from the plunger piston and fixed at an open end of the first accommodating portion of the plunger piston, wherein a first through hole in the butting part receives the guide pin;
• and
• a cover that is a hollow housing for receiving the body and covering the contact point, wherein a first terminal and a second terminal are arranged corresponding to the contact point, wherein the contact point is led to contact the first and second terminals and thus electrically connect the first terminal to the second terminal when the plunger piston and the guide pin move in the first direction, while the contact point is led to separate from the first and second terminals such that a broken circuit is led between the first terminal and the second terminal when the plunger piston and the guide pin move in the second direction.