Three-dimensional printed buffer structure for helmets

A three-dimensional printed buffer structure for helmets, comprising:

• a first buffer layer comprising:
• an outer surface portion, comprising a plurality of first rods, wherein the plurality of first rods is arranged to intersect and form a grid, with the plurality of first rods defining an outer contour near a helmet shell;
• an inner surface portion, comprising a plurality of second rods, wherein the plurality of second rods extend continuously and are spaced apart, remaining adjacent to one another without intersecting, with the plurality of second rods defining an inner contour close to a user;
• and
• a plurality of supporting parts, disposed between the outer surface portion and the inner surface portion, with each of the plurality of supporting parts having a first end and a second end, wherein the first end and the second end of any one of the plurality of supporting parts are respectively connected to any one of the plurality of first rods and any one of the plurality of second rods,
• wherein, the plurality of first rods, the plurality of second rods, and the plurality of supporting parts are integrally formed by three-dimensional printing.