| 摘要 |
The present invention provides an apparatus to extend a length of a supporting post (10) composed of a plurality of support members (20) which includes an extension member (30) engaged and coupled to a connector (21) formed on an end of the support member (20), wherein the extension member (30) has a holder (41) to connect the connector (21) to be engaged with the connector (21) by a connection pin (32) on one end. As such, the present invention is able to enhance operational reliability and durability due to a reduction in damage as well as being structurally stable while being rapid and convenient during operation. |
