| 摘要 |
An anchoring apparatus includes an upper anchoring assembly located at a lower end of the inner tube of a pulling bar assembly and a lower anchoring assembly located at a lower end of the middle tube of the pulling bar assembly. The lower anchoring assembly has a lower engaging seat which has a coupling bore and an aperture formed on the side walls for housing a lower extensible button. When the bottom end of the upper anchoring assembly is located above the top end of the lower anchoring assembly, a jutting stub of the lower extensible button may be urged to retract and an anchor bolt may be extended to engage with the anchor bore of the outer tube of the pulling bar assembly to thereby keep the pulling bar in a steady and secured condition.
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