Expansion mechanism of decontamination equipment

The utility model discloses a capacity expansion mechanism of decontamination equipment. The capacity expansion mechanism comprises a torsional spring I, a side baffle I, a capacity expansion bottom plate, a shaft sleeve, a side baffle II, a rotating pin shaft, a rear plate fixing pin shaft, a torsional spring II, a rear baffle I, a check ring, a torsional spring III, a bottom plate, a rear baffle II and a rear plate rotating pin shaft. The expansion device is characterized in that shaft sleeves are arranged on the periphery of the expansion bottom plate, the first side baffle is connected with the shaft sleeves through the rotary pin shafts, the second side baffle is connected with the shaft sleeves through the rotary pin shafts, the first rear baffle is connected with the shaft sleeves through the rear plate fixing pin shafts, and the second side baffle is connected with the shaft sleeves through the rear plate fixing pin shafts. The second rear baffle is connected with the shaft sleeve through the fixing p