| 摘要 |
A telescopic safety post for use in erecting temporary safety fences between floor slabs on construction sites. More particularly, the invention relates to a spring loaded telescopic safety post with a threaded collar and pin expansion mechanism. The post has an outer tube and an inner tube slidably connected thereto. The outer tube incorporates a threaded section and a cooperating threaded collar. A lock pin is fitted through a slot in the treaded portion of outer tube and a port in the inner tube and is supported on top of the threaded collar. This allows for the vertical adjustment of the inner tube relative to the outer tube by rotation of the threaded collar. This makes the post length adjustment operation familiar to workers and requires little or no training.
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