Door-valve transmission structure of plated film equipment

The utility model discloses a door-valve transmission structure, which has accurate transmission and good sealing effect. The utility model comprises a cylinder, and a door plate component disposed on the support, which is constituted by a briquetting, a toggle, a door-valve pressing base and a door-valve plate through the transmission connection. The cylinder is connected with a main shaft through a rack-and-pinion transmission structure, and between the main shaft and the briquetting is provide with the transmission connection to drive the door plate component. The transmission method provided in the utility model has advantages of simplicity and practicability, high transmission efficiency, accurate control, tight structure, flexible transmission, no blind angle by rotating the door-valve, a vacuum chamber formed by the tight attaching of the door-valve, ideal sealing effect. Because the rack-and-pinion transmission is very flexible and accurate, all parts can be disassembled easily, thereby the parts can