公开(公告)号：US11158530B1

公开(公告)日：2021-10-26

申请号：US17151556

申请日：2021-01-18

Applicant: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO. LTD.

Inventor： Yuan Wen

IPC: H01L21/673 ,  B25H3/04

Abstract: A materials rack carrying support plates inside, and able to secure or release the support plates by lifting or dropping a handle at the top, includes a frame, a stop assembly, and an assembly for the handle. The stop assembly includes a stop rod, a first pressing plate on an end of the stop rod, and an elastic member resisting against the top frame and the first pressing plate. The handle assembly includes a rotating shaft, the handle and a second pressing plate being fixed to the rotating shaft. By the handle, the second pressing plate can be moved towards the first pressing plate to press down the first pressing plate or moved away from the first pressing plate to release a downward pressure of the first pressing plate.