Lock type anchor bolt and installation structure on concrete

• Main Authors: Xu Yuehua, Xu Jieyuan
• Format: Patent
• Language: Chinese; English
• Published: 17.08.2016
• 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 lock type anchor bolt. The anchor bolt comprises a lower balancing chisel expansion and retreat stop connecting portion which is located on the conehead side of a screw and arranged on the screw in a sleeving mode, an upper balancing retreat stop connecting portion arranged outside the screw in a sleeving mode, and an impulsion pipe arranged on the screw in a sleeving mode. The invention further provides an installation structure on concrete by means of the anchor bolt. According to the anchor bolt and the installation structure, secondary bottom hole expansion is not needed, installation cost and safety risk caused by careless construction are reduced extremely, an unstressed upright balance back locking whole-ring cut-in concrete surface which is firmer than previous bottom hole expansion structures can be formed in concrete online in real time, so that the vertical bearing capacity of the anchor bolt in reinforced concrete is increased, null displacement of anchor bolt performance