The utility model discloses a quick trapping devices of chemical industry line with rubber equipment provides the one screw rod in the perforation of line with rubber equipment, screw rod and perforation looks adaptation in equipment is stretched into to the inner end of screw rod, at fixed bag carriage of the inner end of screw rod terminal surface, provide corrosion -resistant offset plate and corrosion -resistant cushion sequentially between bag carriage and device wall, and cushion and device wall in close contact with at the outer end of screw rod fixation nut, provide the gasket, in close contact with between gasket and the equipment outer wall between nut and equipment outer wall. Adopting above -mentioned technical scheme, can plugging up the small opening fast, do not influence production, the technical scheme puts into production the task busy hour, and is applicable very much, this device simple structure, installation convenient operation. The utility model discloses it is low to reduce maintenance intensity of labour and cost of maintenance.