Anti-looseness bolt fastener

An anti-looseness bolt fastener comprises a screw head, a cross recess, a screw rod, a rubber washer, a through hole, a spring and steel balls. The cross recess is formed in the upper end face of the screw head. The rubber washer is arranged between the screw head and the screw rod. A through hole i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MAO QISHENG
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:	An anti-looseness bolt fastener comprises a screw head, a cross recess, a screw rod, a rubber washer, a through hole, a spring and steel balls. The cross recess is formed in the upper end face of the screw head. The rubber washer is arranged between the screw head and the screw rod. A through hole is formed in the upper portion of the screw rod. The spring is arranged inside the through hole. The two ends of the spring are provided with the steel balls respectively. According to the anti-looseness bolt fastener, due to the fact that the spring and the steel balls are arranged on the screw rod, when the anti-looseness bolt fastener is used for installing or fastening an object, the spring and the steel balls are locked on the object, a bolt is not easily loosened, and practicability and safety are improved.