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○ hydraulic automatic well cover: the hydraulic well cover is opened and closed by hydraulic pump station and oil cylinder drive. This structure is suitable for various road conditions; The installed well cover is flush with the ground and slightly higher than the ground, which solves the problem of pavement waterproof;

○ emergency control of the hydraulic well cover: the hydraulic station is equipped with a manual pump. When the well cover cannot be opened and closed due to power failure or unexpected conditions of the solenoid valve, the manual pump or the special anti-theft lock at the manhole cover can be used to open and close the well cover, which solves the problems of emergency and anti-theft;

○ remote control of hydraulic well cover: the terminal electric control system is integrated on the hydraulic station, operated by button or remote controller, receives the signal from the electric control system to control the oil cylinder to open or close the well cover, and controls the start and stop of the motor through the position sensor;

○ detection of hazardous gas by hydraulic well cover: set hazardous gas sensor according to the pipeline properties. When there are dangerous hidden dangers such as gas leakage and excessive concentration of hazardous gas in the pipeline, the alarm immediately receives the signal, feeds back to the management platform and mobile app in time, and notifies the management personnel to deal with it in time. The problem that harmful gas may cause explosion in the well is well solved.