Bottom adjusting jack dismounting device

The utility model discloses a dismounting and mounting device for a bottom adjusting jack. The bottom adjusting device comprises a base and a bottom adjusting jack, the base comprises a first side plate, a second side plate and a cover plate connected between the first side plate and the second side plate, the first side plate and the second side plate are oppositely arranged, an extending hole isformed in the second side plate, the bottom adjusting jack comprises a cylinder body and a piston rod in driving connection with the cylinder body, and the extending hole is located in a telescopic path of the cylinder body; the cover plate is provided with a taking-out hole used for taking out the bottom adjusting jack, and the taking-out hole and the bottom adjusting jack are oppositely arranged. The pressing piece comprises a mounting end and an abutting end which are oppositely arranged, the mounting end is detachably mounted on the first side plate, the end face, back on to the cylinderbody, of the piston rod ab