... connection devices, specifically relates to a plate connected to plate connector. Background Technology All kinds of plates like sheet wood, plywood ... of the left and right sets of surface contact between pin and hole positioning. Resolved by plate-based products in factory ... , 4, eccentric gear, 5, lift plate, 6, helical gear, 7 pin, 8, positioning holes, 9, plywood, 10 journal sets, 11, spiral ...