Protective formaldehyde comprehensive detector

The utility model provides a protective comprehensive formaldehyde detector which comprises a detector body, a rotary protective assembly is arranged on one side of the outer wall of the detector body, the rotary protective assembly comprises a connecting block, a gas spring is arranged in an inner cavity of the connecting block, a lower turntable is arranged at the lower end of the gas spring, and an upper turntable is arranged at the upper end of the gas spring. A plurality of clamping blocks are arranged around the eccentric position of the upper surface of the upper rotating disc at equal intervals, all the clamping blocks are matched with the clamping grooves, all the clamping grooves are arranged around the upper surface of an inner cavity of the connecting block at equal intervals, a pressing block is arranged at the circle center position of the upper surface of the upper rotating disc, the pressing block is movably connected with a U-shaped protective cover, and a rotating shaft is arranged on the lo