Rope hole automatic sealing device for radial gate hoist

The invention relates to a rope hole automatic sealing device for a radial gate hoist and belongs to the technical field hydraulic and hydro-power engineering equipment. The rope hole automatic sealing device for the radial gate hoist comprises a positive and negative variable frequency motor, a speed reducer, a sealing unit, a laser displacement sensor, a microcomputer PLC (Programmable Logic Controller), a display, a keyboard and an SD (Secure Digital) card storage; the positive and negative variable frequency motor is connected with the speed reducer by a gear; a gear shaft rod of the speed reducer is provided with a tooth ring with ring teeth; the sealing unit consists of a return spring and a sealing batten with plate teeth; the plate teeth are positioned below the surface of the sealing batten and are meshed with the ring teeth of a gear shaft of the speed reducer; the laser displacement sensor is connected with the microcomputer PLC by a data line; the display, the keyboard, the SD card storage and the