Quality detection device for equipment based on gas supply system

The utility model discloses a quality detection device for equipment based on a gas supply system. The quality detection device comprises a detector, a shell and two fixing blocks, through cooperative use of the positioning mechanism and the transmission mechanism, after the transmission mechanism drives the positioning mechanism to move to a proper position, the interior of the detector can be overhauled by taking out the shell, after overhauling is completed, the shell is in butt joint with the detector, the transmission mechanism is loosened, and the positioning mechanism can fix the shell while resetting; according to the invention, the detector is overhauled, and the problems that a certain internal damage is caused in the long-term operation process of an existing detector, the detector needs to be dismounted and overhauled regularly in order to avoid the damage of the detector, the shell of the detector is fixed with the detector through a thread assembly, and the detector is inconvenient to maintain a