Lubricating method and device of surface hole arc gate water seals

The invention discloses a lubricating method and device of surface hole arc gate water seals. A water tank is arranged at a gate abutment pier, a water source is pumped into the water tank through a water pump for standby application. The water in the water tank is guided to an overhaul platform position of each arc gate water seal through a main pipe and then is guided to water seal tops of the two sides of each arc gate through branch pipes. When each arc gate is needed to be opened, a magnetic valve on each branch pipe at each arc gate water seal is turned on through remote control, and the water in the water tank is utilized to conduct water lubrication on each arc gate water seal. The lubricating method and the lubricating device can automatically conduct lubrication on the surface hole arc gate water seals by turning on the magnetic valves, a worker does not need to go to a site, take water from a reservoir area and carry the water to the lateral water seal positions for watering lubrication, and the la