Focusing flashlight

Abstract

The invention relates to a focusing flashlight which comprises a flashlight main body and a light holder assembly. A light source is installed at the left end of the flashlight main body, and the light holder assembly comprises a lens base and a lens installed on the lens base. The focusing flashlight is characterized by further comprising a focusing ring, a connector and a light holder bracket. The right end of the connector is connected with the flashlight main body, while a connecting sleeve is arranged at the left end of the connector in an extending manner. The connecting sleeve is provided with at least one opening which extends along the connecting sleeve axially. The lens base is located in the connecting sleeve, a bump is arranged at the right end of the lens base, and the bump protrudes out of the outer wall of the connecting sleeve. The focusing ring is moveably sleeved on the connector, and the inner wall of the focusing ring is in threaded connection with the bump. The light holder assembly further comprises an attacking head. A scale for indicating the zoom ratio of the flashlight is arranged on the peripheral face of the attacking head. The invention provides a focusing flashlight which can focus quickly and accurately, does not damage the light source in the focusing process, and can better help users for self-defense and escape once emergent events occur.

Description

technical field [0001] The invention relates to the technical field of flashlights, in particular to a focus-adjustable flashlight. Background technique [0002] There are many kinds of flashlights in the prior art with different functions. Among them, there is a focus-adjustable flashlight, which can adjust the concentration of the light beam emitted by the light according to the user's needs. This focus-adjustable flashlight is widely used. The focus adjustment action of the focus-adjustable flashlight is realized by adjusting the distance between the light source and the lens, but the focus-adjustable flashlight in the prior art is limited by its structure, and most of the focus adjustment methods are by moving the light source while the lens does not move The focal length of the flashlight can be adjusted by means of this method. In the design of this focusing method, although it is only necessary to install a threaded sleeve at the lamp head that can drive the light sou...

AI Technical Summary

Problems solved by technology

The focus adjustment action of the focus-adjustable flashlight is realized by adjusting the distance between the light source and the lens, but the focus-adjustable flashlight in the prior art is limited by its structure, and most of the focus adjustment methods are by moving the light source while the lens does not move The focal length of the flashlight can be adjusted by means of this method. In the design of this focusing method, although it is only necessary to install a threaded sleeve at the lamp head that can drive the light source to move back and forth, the forward and backward movement of the light source is realized by the rotation of the thread. , During the rotation process, the wires connected to the light source will rotate synchronously. After a long time of use or the user rotates too much in one direction, the wires are easy to stretch or even break, resulting in unstable power supply to the light source or even open circuit or short circuit. In addition, Since the light source accessories are hidden in the flashlight housing for movement, the zoom ratio can only be estimated by visually measuring the size of the aperture irradiated by the flashlight, and the zoom ratio of the aperture cannot be displayed more accurately and quickly by setting the scale line (because even in the The outer peripheral surface of the light source accessories is set with scale lines to display the zoom ratio, which will also be blocked by the flashlight shell and cannot be seen by the user)

In addition, the flashlight in the prior art is generally only used for emergency lighting, and people often carry it with them. When an emergency occurs, it only has a lighting function, and cannot better help users self-defense and escape.

To sum up, the focus-adjustable flashlights in the prior art have the disadvantages of being unable to focus quickly and accurately during focus adjustment, and in the event of emergencies, they cannot better help users self-defense and escape.

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