Preceding mounting sleeve before fire protection work

摘要

(57) Abstract Objective Before the fire-resistant canning constructing whose installation job on site is easyThe preferential installation sleeve is offered. Constitution In one end of longitudinal direction of rectangular plate 21 in crosswisePutting in place interval, as sudden facilities it does multiple person in charge stopper claws 22, other end sideTo provide the person in charge stopper claw sequence aperture 23, at the same time the center line paralleling of the plateThe channel of the width which is suitable to the thickness of the web size section of the beam in series to multiple placesYou snap the grooved pawl 24 of the concave form which possesses 241 and cause possibilityTo form, rounding off particular plate 21, person in charge stopper claw 22 the person in charge stopper clawThose where it does and passes to the aperture 23 and makes cylindrical shape condition the web size section of the beamWith the grooved pawl 24 where the Interpolation it passes to the perforation hole, snaps and causes the web size sectionPutting, it tried to lock.