Anti-disengagement bolt mechanism

• Main Authors: SUN SHUYUN, ZHANG LINLI, SU MINLIANG
• Format: Patent
• Language: Chinese; English
• Published: 08.09.2023
• Subjects: AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; BLASTING; COSMONAUTICS; 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; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PARACHUTES; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The utility model provides an anti-disengagement bolt mechanism, and relates to the technical field of design, manufacturing and assembly of aircraft seats. The anti-disengagement bolt mechanism comprises an anti-disengagement device and an installed bolt, a bolt head and a bolt rod of the installed bolt are locally enlarged, the installed bolt penetrates through the anti-disengagement device to be connected with an airplane preset nut, and the anti-disengagement device controls the fastening degree of the installed bolt through a tightening screw on a cushion column. The utility model has the advantages of simple assembly, convenient operation, high reliability, and no need of special tool equipment for assembly and maintenance. The bolt head and the rod diameter of the bolt are locally increased to ensure that the fastening force of the bolt is not lower than a design value. The tightening position of the tightening screw is adjusted, so that the installation bolt can rotate freely and cannot be separated f