Buffer structure of helmet

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.

What is claimed is: 
     
         1 . A buffer structure of a helmet comprising a shell, wherein an elastic lining is arranged on an inner side of the shell, 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 of the buffer elements comprises 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. 
     
     
         2 . The buffer structure of the helmet according to  claim 1 , wherein the buffer columns are parallel to one another and perpendicular to the top plates, and transition bosses are arranged at positions where the buffer columns are connected with the top plates. 
     
     
         3 . The buffer structure of the helmet according to  claim 1 , wherein each of the buffer columns comprises a column body connected with the corresponding top plate and an abutting portion arranged at a tail end of the column body, a bottom surface of each of the abutting portions forms an abutting surface, each of the abutting surfaces is annular, an expansion groove is formed in a center of each of the abutting surfaces, and the top plates, the column bodies and the abutting portions are of integrated homogeneous structures. 
     
     
         4 . The buffer structure of the helmet according to  claim 3 , wherein the column body of each of the buffer columns is in a big-end-up circular truncated cone shape, each of the abutting portions is of a hexagonal blocky structure, a diameter of an incircle of each hexagon is greater than a maximum diameter of the corresponding column body, and a necking portion is arranged at a position where each of the abutting portions is connected with the corresponding column body, wherein the connecting position adopts arc-shaped transition; and the expansion groove formed in the center of each of the abutting surfaces is in a hexagonal pyramid shape, an included angle between two opposite oblique high lines of each of the hexagonal pyramids is 80 to 100 degrees, and arc-shaped transition structures are arranged at edges and corners of the hexagons and the hexagonal pyramids correspondingly. 
     
     
         5 . The buffer structure of the helmet according to  claim 3 , wherein a height of the column body of each of the buffer columns is 75% to 85% of a total height of the buffer column, the height of each of the column bodies is equivalent to a thickness of the elastic lining, and the abutting portions protrude out of the inner surface of the elastic lining. 
     
     
         6 . The buffer structure of the helmet according to  claim 1 , wherein the elastic lining is composed of a plurality of foam belts in a connected mode, the foam belts include a U-shaped belt located at a top of a head and a semicircular belt surrounding a front side of the head, and the through holes are formed in the foam belts. 
     
     
         7 . The buffer structure of the helmet according to  claim 6 , wherein four to ten buffer elements are arranged on the semicircular belt, wherein at least two of the buffer elements are located on a forehead portion of the helmet, and two of the buffer elements are located on two sides of the helmet; and five to twelve buffer elements are arranged on the U-shaped belt, wherein two of the buffer elements are at least arranged on each of two straight-line segments, located at a top of the helmet, of the U-shaped belt, and one of the buffer elements is at least arranged at an arc-shaped segment, located on a rear portion of the helmet, of the U-shaped belt. 
     
     
         8 . The buffer structure of the helmet according to  claim 1 , wherein the top plates are polygonal or circular, and five to fifteen buffer columns are uniformly arranged on each of the top plates. 
     
     
         9 . The buffer structure of the helmet according to  claim 1 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         10 . The buffer structure of the helmet according to  claim 2 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         11 . The buffer structure of the helmet according to  claim 3 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         12 . The buffer structure of the helmet according to  claim 4 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         13 . The buffer structure of the helmet according to  claim 5 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         14 . The buffer structure of the helmet according to  claim 6 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         15 . The buffer structure of the helmet according to  claim 7 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode. 
     
     
         16 . The buffer structure of the helmet according to  claim 8 , wherein hook & loop fasteners are arranged between the top plates and the shell, the top plates are connected and fixed to the shell through the hook & loop fasteners, and the buffer elements are arranged on the helmet in a bilateral symmetry mode.