Grinding and filtering device for plant protein extraction

The invention relates to the technical field of grinding and filtering for plant protein extraction, and discloses a grinding and filtering device for plant protein extraction, wherein the device comprises a support platform, a filter box and inverted U-shaped frames fixed on two side walls of the support platform; a funnel-shaped discharge port is arranged at the bottom of the filter box, and a telescopic hose is communicated with the top of the filter box; the top end of the filter box is communicated with a through feeding pipe fixed to the transverse ends of the inverted U-shaped frames, impact blocks are fixed to the left corner and the right corner of the top of the filter box and movably arranged at the bottoms of the transverse ends of the inverted U-shaped frames through hinged supports, and the side walls of the two vertical ends of the inverted U-shaped frames are each provided with an energy recovery box; and each energy recovery box is communicated with an air bag arranged in the filter box throu