Lock type anchor bolt and installation structure on concrete
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...
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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
17.08.2016
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Subjects | |
Online Access | Get full text |
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Summary: | 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 |
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Bibliography: | Application Number: CN20161400484 |