Push button structure with curved lever

A push button structure with a curved lever, comprising:

• a casing having a surface formed with an opening, wherein the opening extends through the surface;
• and
• a button body integrally formed with the casing by injection molding, the button body being formed within the opening and having an outer surface and an inner surface, wherein the outer surface is exposed on the surface of the casing so as to be pressed, and the inner surface is provided with the curved lever, which extends inward of the casing, the curved lever having an end fixedly connected to an inner wall of the casing at a position adjacent to the opening, the button body further having an outer periphery spaced from an inner periphery of the opening such that the button body is movably positioned within the opening, wherein, when the outer surface of the button body is pressed, the button body is displaced inward of the casing due to elasticity of the curved lever, thereby triggering an electronic switch in the casing, and when the outer surface of the button body is no longer pressed, the button body resumes an original position thereof due to the elasticity of the curved lever.