Powder box locking mechanism of powder collecting vehicle

The utility model relates to the technical field of locking mechanisms, and discloses a locking mechanism for a powder box of a powder collecting vehicle, which comprises a box body and a box cover, a feeding pipe is arranged at the top of the box cover, a locking device is arranged in the middle of the front surface of the box cover, and a fixing device is arranged on the side surface of the locking device. According to the powder box locking mechanism of the powder collecting vehicle, a clamping block on the front face of a box cover is aligned with a clamping groove in the top of a clamping base, the clamping block is inserted into the clamping groove, the bottom of the clamping block makes contact with the top of the clamping groove, then an inserting strip is inserted into an inserting groove, the inserting strip is moved upwards, a connecting block part on the top of the inserting strip is moved into an adjusting groove, and then the inserting strip is rotated by 90 degrees; the direction of the connect