Inner barrel supporting piece

The utility model discloses an inner barrel supporting piece which comprises a ground well, the ground well comprises an outer barrel and an inner barrel, a supporting mechanism is arranged on one side of the top of the inner barrel and comprises a U-shaped buckle, the U-shaped buckle is connected with the top of the inner barrel in an inserted mode, one side of the U-shaped buckle is in threaded connection with a set screw, and the other side of the U-shaped buckle is in threaded connection with the set screw. A U-shaped buckle is arranged in the inner barrel, a set screw is arranged in the U-shaped buckle, the threaded end of the set screw penetrates through the U-shaped buckle and extends into the inner barrel, a screw rod is fixedly connected to the side, away from the set screw, of the U-shaped buckle, and a spring is arranged on the surface of the screw rod in a sleeved mode. According to the inner barrel supporting piece, the supporting mechanism is additionally arranged between the inner barrel and th