Detachable reinforcement cage inner supporting structure

The utility model belongs to the technical field of reinforcement cage supporting structures, and discloses a detachable reinforcement cage inner supporting structure which comprises a double-internal-thread sleeve rod, and the outer surface of the double-internal-thread sleeve rod is fixedly sleeved with a rubber sleeve. By arranging the first screw rod, the second screw rod and the square rod, one end of the steel fork is inserted into a reinforcement cage, so that the steel fork fixes the first screw rod through the connecting rod, and then the rubber sleeve is rotated, so that the double-internal-thread sleeve rod spirally moves along the outer surface of the first screw rod; therefore, the double-internal-thread sleeve rod drives the other connecting rod and the steel fork to move oppositely through the second screw rod, the square rod and the square opening limit the second screw rod until the other steel fork is inserted into the reinforcement cage to be supported, and then the rubber sleeve is rotated