| 摘要 |
PURPOSE: A coupling bolt is provided to securely fix structures or constructions by inserting the coupling bolt into the structures or constructions, and then, fastening the coupling bolt using a fastening nut. CONSTITUTION: A coupling bolt(11) includes a body section(16). The body section(16) has a head section at one end thereof. The body section(16) is formed with a screw part(13), which is coupled with a nut(14). A fastening rod(15) inserted into an assembling hole is formed at a lower end of the coupling bolt(11). A locking chuck(17) having a locking part(18) is provided at a bottom of the coupling bolt(11). A resting slot(21) is formed in the body section(16) of the coupling bolt(11). The coupling bolt(11) is provided with a spring. A bolt fixing member is provided at an end of the body section(16).
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