The invention discloses a fastener, and particularly relates to a high-strength automobile anti-theft bolt which comprises a screw rod and a head part. The end face of the head part is provided with an annularly-unfolded sinking groove, the center of the sinking groove is provided with an insertion piece, and the inner side wall of the sinking groove is provided with a plurality of inner protrusions protruding towards the center of the sinking groove. A plurality of outer protrusions protruding outwards are arranged on the outer side wall of the insertion piece. A first female die groove is formed by a first boundary and a third boundary, a second female die groove is formed by a second boundary and a fourth boundary, and the first female die groove and the second female die groove are both of special-shaped structures, so that the bolts are difficult to screw without a special tool, and the bolts have good anti-theft performance. And meanwhile, the first female die groove and the second female die groove are coaxially arranged and are both formed in the sinking groove, and the bolts can be screwed only by inserting the special tool with only one end opening into the sinking groove, so that the convenience of screwing the bolts is improved, and the efficiency of mounting and dismounting the bolts is also improved.

    本发明公开了一种紧固件,尤其涉及一种高强度汽车防盗螺栓,包括螺杆和头部,头部的端面上设有环形展开的陷入槽,陷入槽的中心设有插入件,陷入槽的内侧壁上设有若干朝向陷入槽中心凸出的内部凸起,插入件的外侧壁上设有若干朝向外部凸出的外部凸起。通过第一边界和第三边界构成第一阴模槽,第二边界和第四边界构成第二阴模槽,第一阴模槽和第二阴模槽均为异形结构,在没有专用工具的情况下难以拧动螺栓,使螺栓具有良好防盗性能。同时第一阴模槽和第二阴模槽同轴设置,均在陷入槽内部构成,只需一个端口的专用工具插入陷入槽内即可拧动螺栓,提高了拧动螺栓的便利性,提高螺栓安装与拆卸的效率。


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    Titel :

    High-strength automobile anti-theft bolt and mounting method thereof


    Weitere Titelangaben:

    一种高强度汽车防盗螺栓及其安装方法


    Erscheinungsdatum :

    2021-06-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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