Supporting device for punching bag

A supporting device for a punching bag, comprising:

• 1) a hollow tubular pillar;
• 2) a connector;
• 3) a flange body;
• 4) a rubber shock absorber;
• and
• 5) a support tray;
• wherein:
• the connector is tubular, and comprises a first end and a second end;
• the second end is bigger than the first end in diameter;
• the first end is disposed into the hollow tubular pillar;
• the connector comprises a first connection hole, and the hollow tubular pillar comprises a second connection hole;
• the connector and the hollow tubular pillar are fixed by a locking screw through the first connection hole and the second connection hole;
• the flange body comprises a central blind hole, and the second end of the connector is disposed into the central blind hole;
• the flange body further comprises a radial base;
• a circumference of the radial base comprises a plurality of mounting holes configured to receive a counterweight unit to stabilize the supporting device;
• the support tray is a disc structure, comprising at least two support rods;
• one end of each support rod is fixed to the hollow tubular pillar, and the other end is fixed to the support tray;
• and the support tray is configured to support a punching bag body;
• and
• the rubber shock absorber comprises a central hole;
• the hollow tubular pillar is disposed through the central hole;
• and the rubber shock absorber is disposed below and leans against the support tray.