Hole cover fixation structure capable of preventing stopper rotation in disassembly process

• Main Authors: XUE HUA, LIU JIN, WANG JUN, YANG JINHOU, ZHAO LIANG, WANG HONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 20.06.2012
• Subjects: 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

The invention provides a hole cover fixation structure capable of preventing stopper rotation in a disassembly process, wherein a stopper is plugged into an opening hole on the outer surface of a shell; a hole cover is covered on the opening hole on the outer surface of the shell; the hole cover is fixedly connected with the stopper through a single bolt; the center axis of the bolt is parallel to that of the opening hole on the outer surface of the shell; and the centre axis of the bolt is not overlapped with that of the opening hole on the outer surface of the shell. According to the hole cover fixation structure provided by the invention, through adjusting the center axis of the bolt, the moment generated in the process of dissembling the bolt is not overlapped with the center line of the opening hole on the outer surface of the shell, and neither not overlapped with the center axis of the stopper, so that the generated moment cannot enable the stopper to rotate when the bolt is rotated, therefore the disa