Safety helmet with self-buckling rigid lower jaw belt
A self-fastening, hard hat technology, applied in the field of hard hats, can solve the problem of easy falling off of hard hats, and achieve the effect of facilitating large-scale production and manufacturing, simple structure, and improving safety
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Embodiment 1
[0035] as attached figure 1 As shown, the safety helmet with a self-fastening rigid chin strap includes a cap body 1, and the inner wall of the cap body 1 is fixedly connected with a chinstrap. Wherein the cap strap includes a telescopic band 3 and two rigid bands 2 . The opposite sides of the inner wall of the cap body 1 are respectively fixedly connected with two rigid belts 2 made of leather by rivets. A telescopic band 3 made of elastic rubber is fixed by rivet between the bottom ends of the two rigid bands 2 . When the telescopic band 3 was in a free state, the elastic band was parallel to the bottom surface of the safety helmet. The downward facing outer wall of the telescopic belt 3 is evenly provided with some granular protrusions.
[0036] The specific implementation process is as follows: during the wearing process, the rigid parts on both sides are located on both sides of the wearer's face to achieve the technical effect of being close to the wearer's face. The...
Embodiment 2
[0038] as attached figure 2 As shown, the difference between this embodiment and the first embodiment is that the stretchable belt 3 is made of inelastic rubber material. One end of the telescopic band 3 is fixed with the rigid band 2 rivets on the right side of the cap body 1 . The rigid band 2 at the left end is fixed with a first metal buckle 4, the first metal buckle 4 is hinged with a first metal pin, and the surface of the left end of the telescopic band 3 is evenly provided with a number of first positioning pins that are plugged and matched with the first metal pin. Hole 5.
[0039] The specific implementation process is as follows: when adjusting the length of the telescopic belt 3 in this technical solution, it is only necessary to turn and open the first metal needle from the first metal buckle 4, and extend the left end of the telescopic belt 3 into the first metal buckle 4 for adjustment. When adjusting the stretchable belt 3 to a specific length, turn the firs...
Embodiment 3
[0041] as attached image 3 As shown, the difference between the present embodiment and the first embodiment is that the rigid belt 2 on the right side is hinged with the inner wall of the cap body 1 , and the inner wall of the cap body 1 is rivet-fixed with a second metal buckle 6 . A second metal pin is hinged on the second metal buckle 6, and a plurality of second positioning holes 7 that are plugged and matched with the second metal pin are evenly opened on the surface of the rigid belt 2 on the left side.
[0042] The specific implementation process is as follows: when the helmet is not in use, the rigid part is folded and rotated into the cap cavity, so that the rigid part can hinder the wearing of the helmet, and at the same time it can reduce the space occupied by the entire helmet, which facilitates the stacking of the helmet , Handling, etc. When the length of the chin strap needs to be adjusted, it is only necessary to rotate and open the second metal needle from t...
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