Abstract: A safety helmet with a rotary impact buffering function comprises a shell and an elastic liner arranged in the shell, wherein a gap is formed between the shell and the elastic liner, and a rotary impact buffering device enabling the shell to rotate relative to the elastic liner is arranged between the shell and the elastic liner. When the safety helmet is impacted by external force, the shell has the tendency to rotate relative to the elastic liner under the effect of component force applied to the shell in the tangential direction; however, through tangential deformation of the rotary impact buffering device, the shell can rotate relative to the elastic liner by a certain angle on the premise of keeping the elastic liner unmoved, and thus the impact to users from external force is greatly reduced.

Abstract: Provided is a buffer structure of a helmet. An elastic lining is arranged on an inner side of a shell of the helmet, a plurality of through holes are formed in the elastic lining, buffer elements composed of an elastic material are arranged at the through holes, each buffer element includes a top plate fixed to the shell and a plurality of buffer columns arranged on the top plate, lower end portions of the buffer columns stretch out of the through holes and protrude out of an inner surface of the elastic lining, and clearances are formed between the adjacent buffer columns and between the buffer columns and inner walls of the through holes correspondingly. The helmet of the present invention has a quite good normal and tangential buffer effect, the head of a user is not prone to being injured and the sense of comfort of the user is good when the helmet is subjected to impact of external force, and the protection effect of the helmet on the user is greatly improved.

Abstract: A safety helmet with a rotary impact buffering function comprises a shell and an elastic liner arranged in the shell, wherein a gap is formed between the shell and the elastic liner, and a rotary impact buffering device enabling the shell to rotate relative to the elastic liner is arranged between the shell and the elastic liner. When the safety helmet is impacted by external force, the shell has the tendency to rotate relative to the elastic liner under the effect of component force applied to the shell in the tangential direction; however, through tangential deformation of the rotary impact buffering device, the shell can rotate relative to the elastic liner by a certain angle on the premise of keeping the elastic liner unmoved, and thus the impact to users from external force is greatly reduced.