The present application relates to a kind of
drug production detection devices, to the bottled
drug carries out airtightness detection, the device includes base, arc rod, positioning seat, electric telescopic rod and
isolator cover, its core is in
isolator cover inside and is provided with a set of air curtain generation mechanism, the mechanism is formed by multiple arc-shaped plates, organ plate connected adjacent arc-shaped plate and a top sealing cover, form a adjustable
diameter annular cavity, by adjusting
motor drive screw and connecting rod mechanism, the position of all arc-shaped plates can be changed simultaneously, to adapt to different size
medicine bottle.External
gas supply is supplied to the cavity by the air inlet
pipe on the sealing cover, when detecting, the
back pressure change of air curtain area is monitored by
pressure sensor installed in positioning seat, when
bottle mouth is sealed well, pressure is stable, when there is leakage, pressure drops, according to this to judge airtightness;The device effectively isolates external interference, realizes non-contact detection, and has the
advantage of fast adjustment.