Protective device for gate winch

The utility model relates to the technical field of winches, and discloses a gate winch protection device which comprises a protection box, a protection cover is fixedly arranged at the upper end of the protection box, a fixing block is fixedly arranged at the upper end of the protection cover, an emergency stop mechanism is arranged in the fixing block in a sliding mode, and the emergency stop mechanism comprises a clamping plate. A pressing rod is fixedly arranged at the upper end of the clamping plate, a motor is fixedly arranged on one side of the front end of the bottom face in the protection box, a threaded rod is fixedly arranged at the output end of the motor, and a threaded box is fixedly arranged on the outer surface of the threaded rod. According to the utility model, by arranging the emergency stop mechanism, operation can be stopped in time and further damage can be prevented when internal parts go wrong, by arranging the pay-off and take-up mechanism, accumulation of steel wires during take-up c