Width-adjustable water tank bottom surface light receiving equipment

The width-adjustable water tank bottom surface light receiving equipment comprises a base, a light receiving device body, a belt and a light receiving rod, the light receiving device body is arranged in the middle of the top end of the base, first fixing plates are arranged on the left side and the right side of the light receiving device body respectively, and the bottom ends of the first fixing plates are fixed to the top end of the base; the front ends and the rear ends of the sides, close to the light receiving device body, of the two first fixing plates are connected through connecting rods, a second fixing plate is arranged at the end, away from the light receiving device body, of the first fixing plate on the right side, and the bottom end of the second fixing plate is fixed to the top end of the base. According to the polishing device, the polishing rod is limited through the moving plate, the moving width of the polishing rod is adjusted, rotation of the two sets of reverse lead screws can be achieve