Gate machine with anti-collision shell

The gate machine comprises a gate machine body, a swing gate and an anti-collision plate, the right side of the gate machine body is movably connected with the left side of the swing gate through a shaft pin, the anti-collision plate is arranged on the left side of the gate machine body, the right side of the anti-collision plate is fixedly connected with a replacement assembly, and a vibration detector is arranged at the top of the rear side of the right side of the anti-collision plate. Through the arrangement of the vibration detector, vibration generated by collision of the anti-collision plate can be conducted to the vibration detector and detected by the vibration detector, if the vibration frequency detected by the vibration detector is too large, the acousto-optic prompter is started to prompt a user to timely come to check the anti-collision plate, the problem that a prompt structure is lacked is solved, and the service life of the anti-collision plate is prolonged. The problems that the anti-collisi