Tightening structure of bionic handheld gun shooting device

The utility model discloses a tightening structure of a bionic handheld gun shooting device, which comprises a fixed protective shell, an air cylinder, a stay wire connector and an auxiliary device, and is characterized in that the auxiliary device is arranged on the outer side of the fixed protective shell, an adjusting mechanism is arranged in the auxiliary device, and the adjusting mechanism can be manually driven; under driving, the fixed protective shell can drive the air cylinder to adjust the front-back angle position, after rotation, the ratchet wheel assembly is matched with the locking piece on the inner side of the hand wheel for stabilization, and deviation is avoided. A rotating mechanism is further installed in the auxiliary device and driven by an independent motor to move through a worm and a worm gear under driving, and the overall left-right angle position adjustment is achieved. The buffering mechanism is installed at the lowest end of the auxiliary device and can slide front and back in a