Gate opening and closing device

The utility model relates to a gate opening and closing device which comprises a gate groove, a gate body is arranged between a left side plate and a right side plate of the gate groove, a driving mechanism for driving the gate body to move up and down is arranged on the gate groove, a left limiting component and a right limiting component are arranged on the gate groove and the gate body in a bilateral symmetry mode, and the left limiting component comprises a limiting groove. Limiting plate sets are arranged at the left end and the right end of the peripheral wall of the limiting groove and comprise a plurality of limiting plates, a sealing plate is arranged at the upper end of the limiting groove, a connecting rod is arranged between the limiting plate sets, clamping plates are connected to the front end and the rear end of the peripheral wall of the lower portion of the connecting rod, and the upper end of the connecting rod penetrates through the sealing plate and the gate groove top plate and is located