US 12,292,264 B2
Frustum embedded fabricated composite protective structure
Yuyan Sun, Qingdao (CN); Ziguo Wang, Qingdao (CN); Zuquan Jin, Qingdao (CN); Yong Yu, Qingdao (CN); and Xiaomei Wan, Qingdao (CN)
Assigned to Qingdao University of Technology, Qingdao (CN)
Filed by Qingdao University of Technology, Qingdao (CN)
Filed on Feb. 3, 2023, as Appl. No. 18/164,457.
Application 18/164,457 is a continuation of application No. PCT/CN2022/074353, filed on Jan. 27, 2022.
Prior Publication US 2023/0194215 A1, Jun. 22, 2023
Int. Cl. F41H 5/007 (2006.01); F41H 5/04 (2006.01); F41H 5/22 (2006.01); F41H 5/24 (2006.01)
CPC F41H 5/007 (2013.01) [F41H 5/0435 (2013.01); F41H 5/0492 (2013.01); F41H 5/226 (2013.01); F41H 5/24 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A frustum embedded fabricated composite protective structure, comprising a restraint frame, a back plate, an infill block and a buffer block, wherein the restraint frame is arranged on the back plate, the infill block is in a frustum shape, the buffer block is arranged on the smaller end of the infill block, and the restraint frame is provided with a plurality of through holes matching a size of the infill block to form mounting holes, the buffer block and the infill blocks are installed in the mounting holes of the restraint frame, and the infill block is wedged into the mounting hole of the restraint frame through a wedge surface mating, while the buffer block is constrained at a bottom of the mounting hole, and the infill block, the buffer block and the back plate are fastened by fasteners;
the restraint frame is formed by connecting a plurality of hoops matching a shape of the infill block, and an inner cavity of each of the plurality of hoops forms the mounting hole;
a cover plate is arranged on an opening side of the restraint frame, the restraint frame is clamped between the back plate and the cover plate; the fasteners comprise bolts and nuts, and at least one bolt hole penetrates through the cover plate, the infill block, the buffer block and the back plate; and the cover plate and the back plate fixedly connect the infill block and the buffer block with each other through the bolts and the nuts.