Three-dimensional planting frame for soilless culture

The utility model discloses a three-dimensional planting frame for soilless culture, which comprises a planting cylinder, planting holes are arranged on two sides of the planting cylinder, mounting heads are mounted at two ends of the planting cylinder, splicing components are arranged on two sides of each mounting head, one end of each mounting head is provided with a connector, and the other end of each mounting head is provided with a connecting rod. A connecting pipe is movably inserted into the connector in a penetrating mode, the connecting pipe is inserted into the connector, when the connecting pipe makes contact with a sealing block, the sealing block is driven to move, the sealing block moves along a sliding rod and compresses a supporting spring, and a water outlet is inserted into a mounting head, so that the connecting pipe is connected with the mounting head; the nutrient solution can flow in the planting cylinder, the connecting pipe is connected with the connector through the threaded sleeve s