Anti-loosening device for light-distribution regulation of lamp and lamp using anti-loosening device

Abstract

The invention relates to an anti-loosening device for the light-distribution regulation of a lamp and a lamp using the anti-loosening device. The anti-loosening device comprises a rotating ring rotationally sleeved on a lamp main body, and an anti-loosening elastic sheet fixed on the lamp main body, wherein the rotating ring rotates to drives a light-distribution regulation device which is connected with the rotating ring to adjust the focus of the lamp; and a plurality of continuous anti-loosening parts are further arranged on the inner surface of the rotating ring, and the end part of the anti-loosening elastic sheet is sequentially contacted with the side surfaces of the plurality of anti-loosening parts during the rotating process of the rotating ring, so as to generate a resistance opposite with the rotating direction of the rotating ring. The lamp comprises the lamp main body, the light-distribution regulation device and the anti-loosening device. The anti-loosening device for the light-distribution regulation of a lamp and the lamp using the anti-loosening device disclosed by the invention achieve the anti-loosening purpose by utilizing the matching of the anti-loosening elastic sheet and the anti-loosening parts on the inner surface of the rotating ring, and can effectively prevent the problem of unstable light distribution due to the loosening which is brought by vibration, rapid movement and the like during a light-distribution regulation process; and the lamp using the anti-loosening device is more accurate in light distribution.

Description

technical field [0001] The invention relates to a lamp, and more specifically, to a light distribution adjusting and anti-loosening device for a lamp and a lamp using the anti-loosening device. Background technique [0002] Most of the light distribution adjustment structures of existing lamps, especially flashlights, are cylindrical sliding type, and the distance between the reflector in the lamp head and the light source is adjusted through the sliding of the cylinder to meet the demand for light distribution adjustment. This structure cannot control the adjustment range, and cannot prevent loosening during the adjustment process, and it is easy to loosen in a vibration environment, resulting in misalignment of light distribution. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a light distribution adjustment anti-loosening device for light distribution adjustment devices in the prior art, which is not easy to ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a light distribution adjustment anti-loosening device for light distribution adjustment devices in the prior art, which is not easy to control the adjustment range, and is easy to loosen and retreat in a vibration environment, resulting in misalignment of light distribution. Device and lamps using the anti-loosening device

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