The utility model relates to the technical field of
shutter, concretely is a double -
deck hollow
shutter, including the mounting frame, the position of one side inner wall of mounting frame near top and bottom all are established and placed the groove, and the position of inside and outside both sides of mounting frame near top and bottom all are established and installed the groove, the position of one side of top inner wall and bottom inner wall of mounting frame all are installed with
micro motor. Through
micro motor, drive gear, driven gear, rotating rod, connecting plate,
shutter body, limit rod, protection board, electric push rod, sliding block, dustproof board and
heat sink etc. The
spare part setting can effectively solve the existing double -
deck hollow shutter in the process of using existing existing double -
deck hollow shutter exists such as need to open the shutter of outside, can only first open the shutter of inside, thereby causes the problem of complicated procedure, and only one side shutter can be opened in single time when using, cannot realize the shutter of inside and outside both sides simultaneously open or close operation.