The lamp is mainly composed of lower acid, alkaline battery, upper components, etc. He is different from the explosion-proof head lamp, the upper component of the mine lamp includes the lamp cap and the upper cover of two parts, the lamp cap is composed of the lamp shell, lamp cap ring, tempered glass, reflector, bulb, bulb holder, charging switch and cap hook and other parts. The lamp cap circle is fixed on the lamp cap shell with triangle screw (insurance screw), and cannot be opened without special tools, so as not to cause gas explosion accidents in coal mines due to the spark generated when the bulb leaves the bulb spring.