Theftproof nut and installing tool

• Main Authors: ZHAO LEICHENG, CHEN MINGJU, CHEN SIFU, HU YONGTAO
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2012
• 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; HAND TOOLS; HEATING; LIGHTING; MANIPULATORS; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; THERMAL INSULATION IN GENERAL; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING; WEAPONS

The utility model relates to a theftproof nut and an installing tool; the theftproof nut comprises a nut body and a protective outer sleeve, wherein the protective outer sleeve is internally provided with a barrel-shaped structure which is used for restraining the nut body and is externally provided with a cylinder structure; the nut body is provided with an extended outer edge above the protective outer sleeve; the nut body is also provided with a dowel which passes through the protective outer sleeve to be connected with the nut body; and the dowel is provided with an outgoing head outside the protective outer sleeve. The dowel is provided with a score break at a gap between the nut body and the protective outer sleeve. The installing tool of the theftproof nut comprises a tool body and is characterized in that the tool body is internally provided with a barrel which is used for restraining the exterior of a hollow structure of the theftproof nut, and a boss which is used for controlling the outgoing head o