Wave energy acquisition device with upper-lower layer bag structure

The invention relates to a wave energy acquisition device of wave energy generating equipment. The device is of a snakelike bag structure; a main floating body can be deformed along with the fluctuation of wave; two bags are arranged in the main floating body and distributed on the upper and lower parts of the floating body; the upper and lower bags are connected through a pipeline; and a generator device is connected between the two pipelines. When the floating body floats up and down along with wave, deformation is generated; the wave peak ensures that the upper bag body generates negative pressure relative to the lower bag body; and the wave trough ensures that the lower bag body generates negative pressure relative to the upper bag body. As a result of pressure difference, liquid flow is generated between the bag bodies, and the liquid flows through the generator to drive the generator to move, so that electric energy is generated. By adopting the device, wave energy can be utilized efficiently. Besides, the device is strong in adaptability. A proper length of the bag body can be designed according to the wavelength of sea wave in different sea areas, so that the maximum energy utilization rate is achieved. The device is suitable for industrial power generation, is simple in production and low in cost, and has high application value.