Tidal seedbed with adjustable spacing

The utility model discloses a tidal seedbed with an adjustable distance, which belongs to the technical field of seedbeds and comprises a frame body, two groups of supporting columns are fixedly connected to the bottom surface of the frame body, two sliding grooves are formed in the upper surface of the frame body, a group of sliding blocks are connected to the inner wall of each sliding groove in a sliding manner, and the sliding blocks are arranged in the sliding grooves. The upper surface of each sliding block is fixedly connected with a control plate, the side faces, close to each other, of the two control plates are jointly and fixedly connected with a set of carrying plates, water can enter the frame body through a water inlet pipe, and the water can flow on the tide disc through a flow guide groove to irrigate seedlings; through cooperation of a sliding groove and a sliding block, the sliding block can drive a control panel to slide, a worker can adjust the distance between carrying plates, and the pro