Multi-span greenhouse connecting structure

The utility model discloses a multi-span greenhouse connecting structure, and relates to the technical field of greenhouses, the multi-span greenhouse connecting structure comprises a greenhouse body, a fixed block and a movable block are respectively arranged at the side parts, far away from each other, of the greenhouse body, and a movable cavity is formed in the fixed block. According to the greenhouse, when installation is needed, a fixing block is pushed, the fixing block moves to enable a top plate to move, then the top plate is fixed through a reset spring and a trapezoidal clamping block, the fixing block is fixed, the two greenhouse bodies are connected, meanwhile, the top plate moves to extrude a movable block, and then a limiting plate moves through a connecting plate and a sliding plate; and when disassembly is needed, a worker pulls a pull handle to enable a trapezoidal clamping block to move, then fixing of the top plate is relieved, at the moment, a sliding plate is reset under the elastic effe