Transformable jaw-protective structured helmet

Abstract

The invention belongs to the technical field of helmets and relates to a transformable jaw-protective structured helmet. The transformable jaw-protective structured helmet comprises a helmet housing body, two templates, and a jaw protector. The two templates are arranged on two sides of the helmet housing body. The jaw protector is provided with two prongs, and each prong is provided with two moving pins. Each template is provided with an approximately herringbone main rail and an approximately inverted-omega-shaped auxiliary rail, wherein the rails are used for limiting motion track of the two moving pins. Auxiliary pins and limit rails are disposed on the templates or / and prongs, so that rails required to fit with the moving pins can be selected accurately when the moving pins are at a primary track turnout. A track selection mechanism is simplified, so that the jaw protector is more reliable in structural transformation, and jamming and friction between the moving pins and the rails are reduced. In addition, the parts such as the templates, eye-protection spectacles and shields are more convenient and freer to mount, fix, assemble and regulate.

Description

technical field [0001] The invention relates to a helmet for protecting human head safety, in particular to a helmet for drivers of motor vehicles, boats and aircrafts, which can adjust the position of the jaw guard. Background technique [0002] Drivers of motor vehicles, boats, and aircraft are required to wear helmets to protect the head. A typical helmet structure includes parts such as the main body of the helmet shell, goggles, shields, and jaws. The goggles, shields, and jaws are all Installed on the main body of the helmet shell, the function of the goggles is to protect people's eyes from sunlight and other strong light, the function of the shield is to prevent harmful particles such as sand and dust from intruding into the helmet, and the function of the jaw guard is to In the event of an accidental collision, it can effectively protect the driver's chin and other parts from being injured. In the process of wearing the helmet, the driver sometimes needs to lift th...

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Problems solved by technology

[0004] However, it has been found in practice that the above-mentioned technical solution proposed by the patent ZL201010538198.0 still has some points worthy of improvement: first, when one of the moving nails (assumed to be the moving nail 6a) is approaching and crossing the branch rail crossing, the other The movable pin (assumed to be the movable pin 6b) must pre-press one of the two shrapnel and make it deform and shrink, so that the movable nail 6a can enter the track at the fork, while the other shrapnel is not affected by the The movable pin 6b bounces up and protrudes in a certain track at the fork, thereby preventing the movable pin 6a from entering the wrong track. Obviously, the above-mentioned track selection method will inevitably cause the movable pin to collide and rub against the shrapnel. As a result, This causes the jaw guard to be stuck during operation and produces a large friction noise (note that this part is just facing and close to the driver's ear); secondly, the setting of the above-mentioned shrapnel increases the complexity of the helmet structure, mainly Due to the sinking structure, stopper and elastic recovery structure of the shrapnel, its layout, installation and even expansion need to occupy a large space. Where the components are installed at a high concentration, especially the opening and closing mechanism and the spring-up device of the goggles and the shield are located in this narrow space, so the existence of the shrapnel makes the layout of the above-mentioned components very difficult. It is also very difficult to install, fix, assemble and adjust the various parts of the

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