Slip subassembly of sliding door is hung to formula of traversing for building

The utility model discloses a slip subassembly of sliding door is hung to formula of traversing for building, it includes: an upper ledge strip, its inside double -phase offside towards interior buckle respectively form a slide rail, form a passageway between two slide rails, a plurality of nicks of each slide rail medial surface formation, a plurality of nicks separate the setting each other to the extension of the sliding rail direction of facing is extended, and period number puts and locates a recessed formation limiting guide groove in each slide rail medial surface, two limiting guide groove extend along the extension of the sliding rail direction. The utility model discloses the slip subassembly of sliding door is hung to the formula of traversing, through each cyclic annular convexpart spacing in the limiting guide groove of two slide rails, the reduction slider is for the lateral movement of upper ledge strip, the produced noise of pulley side direction striking upper ledge strip when the reduction d