The invention belongs to aviation skin connecting devices, and particularly relates to a fastening structure which comprises a nail body, the head end of the nail body is provided with a countersunk head, the tail end of the nail body is provided with a conical section, and the radius of the conical section is gradually reduced from the tail end to the head end; the inner diameter of the conical ring is not smaller than the maximum diameter of the conical section; a conical groove is formed in the position, corresponding to the conical section of the nail body, of the connecting piece, a conical ring groove for containing the conical ring is formed between the conical groove and the conical section, the conical ring is wedged into the conical ring groove through external force, and a fastening device for axially limiting the nail body is formed. The invention not only provides a solution for the problem of double-sided countersunk head connection, but also has the advantages of low weight, good matching, favorable bearing, and good fastener processing and assembly manufacturability.
本申请属于航空蒙皮连接装置,特别涉及一种紧固结构,包括:钉体,钉体的首端具有沉头,钉体的末端具有锥段,所述锥段的半径由末端向首端逐渐减小;锥形圈,锥形圈的内径不小于所述锥段的最大直径;连接件,连接件在钉体锥段对应位置处具有锥型槽,所述锥型槽与所述锥段之间形成容纳所述锥形圈的锥形环槽,锥形圈通过外力楔入所述锥形环槽中,形成对钉体轴向限位的紧固装置,本申请不仅提供了一种双面沉头连接问题的解决途径,而其重量低、配合好、利于承载、紧固件加工及装配工艺性好。
Fastening structure
一种紧固结构
2022-09-02
Patent
Electronic Resource
Chinese
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 / B64C AEROPLANES , Flugzeuge |
FASTENING DEVICE, FASTENING STRUCTURE, AND FASTENING METHOD
European Patent Office | 2018
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