Electric torch

Abstract

An electric torch comprises a light source assembly arranged at the head of a torch cylinder, a circuit assembly installed inside the torch cylinder and electrically connected with the light source assembly, and a rear cap assembly for enclosing the end of the torch cylinder. The electric torch is characterized in that the rear cap assembly comprises a rear cap, and a trigger button, a gasket, a clamping ring, a spring plate and a screw which are sequentially connected and arranged in the rear cap; the rear cap comprises a cylindrical cap wall and a cap top enclosed at one end of the cap wall; the inner surface of the cap wall is provided with internal threads; the trigger button comprises an elastic support piece and a metal piece inlaid in the support piece; the trigger button is arranged in the rear cap; the support piece presses against the inner side of the cap top; the gasket is an annular gasket; the clamping ring is in a circular structure; the clamping ring presses the gasket and the trigger button against the cap top of the rear cap; the metal piece of the trigger button penetrates through the gasket and the clamping ring sequentially, and contacts the spring plate. The structure greatly improves waterproof performance.

Description

【Technical field】 [0001] The invention relates to a portable lighting device, in particular to a torch. 【Background technique】 [0002] A flashlight is a commonly used portable lighting device. Usually includes lamp tube, light source assembly, battery, switch, back cover and other components. In the traditional technology, the lamp tube is usually a hollow cylindrical tubular structure, with a light source assembly installed at one end, called the head; and an opening at the other end, called the tail. The light source assembly is usually a funnel-shaped structure, the bottom of the funnel is fixed on the head of the lamp tube, and the funnel-shaped design plays a role in concentrating light. The battery is usually cylindrical. When installing, the battery is usually inserted into the lamp tube from the end and pushed into the inside of the lamp tube to complete the installation. The back cover is installed at the tail of the lamp tube to fix the battery. [0003] In th...

AI Technical Summary

Problems solved by technology

In the traditional technology, due to the existence of this opening, the inner and outer sides of the side wall of the lamp tube are in a connected state, and the waterproof performance is poor

If the flashlight is immersed in water, water will seep into the inner side of the side wall of the lamp through the opening, affecting the work of the internal components of the flashlight

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