Helmet lens slightly-opening mechanism

Abstract

The invention relates to a helmet lens slightly-opening mechanism which is characterized by comprising a limiting part arranged on a lens, a rail, and a maintaining mechanism used for applying a force to the lens so as to maintain the limiting part to generate pressure on a slightly-opening limiting position, wherein a rail surface is provided with the slightly-opening limiting position and a slope surface higher than the slightly-opening limiting position; and the limiting part is limited by the slightly-opened limiting position through the maintaining mechanism so as to keep the slightly-opened state of the lens, and when the lens is continuously opened, the limiting part moves on the slope surface. According to the slightly-opening structure provided by the invention, the lens can be stably kept in a micro-opening state, the slightly-opening state is not or rarely influenced by changes of external conditions, ventilation inside and outside the helmet is further ensured, and the situation that fog is generated on the lens is stably avoided.

Description

technical field [0001] The invention relates to a helmet part, in particular to a slightly opening mechanism of a helmet lens. Background technique [0002] When wearing a helmet, the lens of the helmet often fogs up, and the fogging will affect the field of vision, thereby causing potential safety hazards. The existing technology prevents fogging of the lens by setting the slightly open position of the lens on the helmet, turning the lens to the slightly open position to open the lens slightly to form a gap that allows water vapor to escape, allowing the inside and outside of the helmet to circulate to avoid fogging , At the same time, this way of slightly opening will not affect the protective effect of the lens on the eyes. [0003] There are still some problems with the slightly open position of the existing helmet. In one case, due to the weight of the lens itself, the slightly open helmet will return to the closed state when the helmet shakes. When driving a motor ve...

AI Technical Summary

Problems solved by technology

[0003] There are still some problems with the slightly open position of the existing helmet. In one case, due to the weight of the lens itself, the slightly open helmet will return to the closed state when the helmet shakes. When driving a motor vehicle or a non-motor vehicle, the wind speed is too fast to cause the lens to rise, resulting in the lens not being able to protect the face well. The third situation is that although the slightly open position is set, due to fit problems or parts The problem of error leads to the problem that even if the lens is adjusted to the slightly open position, due to these errors or the lack of tight fit, there is actually no problem of slightly opening effect

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