Disclosed is an opening/closing device for a gate passage, the device comprising a door (1), a base (2), a frame (3), a guide rail mechanism (4) arranged on the base (2) and connected to the door (1) in a movable fitting manner, a linkage swinging mechanism (5) arranged on the frame (3), and a drive mechanism (6), wherein one end of the linkage swinging mechanism (5) is rotatably connected to the door (1), and is used to enable the door (1) to move in a reciprocating motion on the guide rail mechanism (4) between a door closing position and a door opening position on the gate passage; and the drive mechanism (6) is rotatably connected to the other end of the linkage swinging mechanism (5), and is used to drive the linkage swinging mechanism (5) to swing. The opening/closing device for a gate passage can control the door to open and close without a support shaft or a gearbox, such that the transmission structure is simple, and the linkage swinging mechanism operates stably.
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