Anti-knock casing of anchor bolt

• Main Author: JIEYUAN XU
• Format: Patent
• Language: English
• Published: 20.09.2006
• 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 utility model discloses an anti-knock casing of an anchor bolt. One end of the anti-knock casing is provided with a plurality of notches which are evenly distributed in a circumferential direction and extend in an axial direction. The length of the notch corresponds with the length of an opening of a petal pad on the anchor bolt. Resistance force caused by the addition of the anti-knock casing can be reduced and even eliminated in the precondition of no decrease of an anti-knock function through a method that the notches are arranged on the anti-knock casing. Thereby, the installation and the fixation of the anchor bolt with the anti-knock casing are convenient. After a connecting rib is arranged on an opening of the notch, the unexpected expansion of the end of the anti-knock casing before installation can be effectively prevented. Thus, the successful installation of the anchor bolt can be ensured. The petal pad can be prevented from freely passing through the anti-knock casing by the means that a circular ring structure is arranged on the end of the anti-knock casing. Impact to the bottom wall of an installation hole of the utility model by the end of the anchor bolt can be effectively decreased by the means that a circular closing plate is arranged on the end of the anti-knock casing. Thus, an anti-knock function can be implemented.