Bolt

The utility model discloses a bolt and belongs to the field of mechanical parts, an anti-abrasion device is arranged on the lower surface of a head body and comprises a protective ring, the protective ring is located below the head body, two mounting blocks are fixedly connected to the lower surface...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG AIHUA, HUANG XU, OU YANGHAI, YU SHUN, HUANG JIAKUN, CHEN AILIAN
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 bolt and belongs to the field of mechanical parts, an anti-abrasion device is arranged on the lower surface of a head body and comprises a protective ring, the protective ring is located below the head body, two mounting blocks are fixedly connected to the lower surface of the head body, two mounting holes are formed in the surface of the protective ring, and the mounting blocks are connected with the mounting holes in a clamped mode. Two rectangular grooves are formed in the surface of the mounting block, the inner walls of the rectangular grooves are slidably connected with stop blocks, and rectangular blocks are fixedly connected to the two sides of the inner wall of the mounting hole in the surface of the protection ring. According to the unmanned aerial vehicle, by arranging the anti-abrasion device, the equipment can be conveniently protected, the phenomenon that friction is likely to be caused between the equipment and the surface of the unmanned aerial vehicle during inst