Sectional type self-tapping screw

The utility model discloses a sectional type self-tapping screw which comprises a screw sleeve and a screw rod, a connecting block is arranged at the bottom end of the screw sleeve, the connecting block is of an L-shaped structure and matched with a second groove, the second groove is formed in the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WAN JIANLIANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a sectional type self-tapping screw which comprises a screw sleeve and a screw rod, a connecting block is arranged at the bottom end of the screw sleeve, the connecting block is of an L-shaped structure and matched with a second groove, the second groove is formed in the top end of the screw rod, a magnet is fixedly arranged in the second groove, and the magnet is matched with the screw rod. A cavity is formed in the screw sleeve, a push plate is movably installed in the cavity, multiple filling columns are fixedly and vertically connected to the bottom end of the push plate, the filling columns are arranged in parallel, and a first groove is further formed in the top end of the screw rod and matched with the filling columns. The screw sleeve and the screw rod can be connected to form a sectional type self-tapping screw, and after the screw rod is screwed into an installation object, the screw sleeve and the screw rod can be separated through the connecting block, so that after the