Automatic column-installing valve

The utility model discloses an automatic column-installing valve which comprises a valve body and a valve base which are fixedly connected with each other. A slide block is arranged in the valve body, the outer end of the slide block penetrates through the valve base, a column body is arranged in the slide block, the outer end of the column body penetrates through the valve body, the column body is hollow so that a cavity can be formed, a through hole communicated with the cavity is formed in the near end portion of the outer end of the slide block, an elastic mechanism is arranged between the slide block and the valve body, and a limit mechanism is arranged between the slide block and the inner side of the valve body. The automatic column-installing valve has the advantages that only external mechanisms are required to be arranged, an air circuit is switched, and operations of column assembling, column disassembling and cleaning of the column-installing valve can be automatically achieved. Compared with the prior art, the automatic column-installing valve has the advantages that pistons and a lifting mechanism are not required to be disassembled, and operation is convenient.