The invention provides a hydraulic type water-surface power generating device and relates to the technical field of
wave power generation. The hydraulic type water-surface power generating device is mainly composed of a shell body, a counterweight body and a plurality of floating feet, wherein a water feeding
turbine machine, a backwater
turbine machine, a power generator set and a
water channel are arranged in the shell body, the floating feet are connected with a
hydraulic pump through a transmission rod, the
hydraulic pump is a
plunger type
hydraulic pump, one end of the hydraulic pump is connected with the transmission rod through a
plunger, a
plunger cylinder at the other end of the hydraulic pump is provided with a water outlet and a water inlet, the water outlet and the water inlet are respectively provided with a
check valve, the water outlet and the water inlet of the hydraulic pump are respectively connected with the water feeding
turbine machine and the backwater turbine machine through pipelines, the water feeding turbine machine and the backwater turbine machine are connected with the
water channel through pipelines, and the water feeding turbine machine and the backwater turbine machine are both connected with the power generator set. According to the hydraulic type water-surface power generating device, the
vertical displacement of
waves are used by the symmetrically arranged floating feet, vertical
waves are transformed to
mechanical energy to drive the turbine machines to generate power, the structure is reasonable, the effective
working hours are long, the wave energy transforming efficiency is improved, and the manufacturing cost is low.