Telescopic supporting rod

The invention provides a telescopic supporting rod, which comprises an inner pipe, an outer pipe and a locking device, wherein the locking device is arranged at the right end of the outer pipe, a limiting groove is formed in the inner pipe, the locking device comprises a locking base, a push handle assembly and a limiting block, the limiting block is installed on the locking base, a first screw rod is further sleeved with a torsional spring, the push handle assembly comprises a handle, a tension spring, a limiting locking base and an unlocking handle, the handle is installed on the locking base, the limiting locking base is installed at the lower end of the handle, the unlocking handle is installed at the left end of the limiting locking base, second limiting teeth are arranged at the lower right end of the limiting locking base, the locking base is provided with a first limiting screw rod and a second limiting screw rod, one end of the tension spring is installed on the first limitingscrew rod, and the other