| 摘要 |
A support stand includes a mounting assembly mountable on a table top, a suspension arm coupled to a vertically arranged rod member of the mounting assembly to hold a rotary barrel, a swinging arm pivotally connected with its bottom end to the rotary barrel of the suspension arm, a stretcher mounted in a frame bar of the swinging arm and a holder frame assembly coupled to the top end of the swinging arm to support an object. The stretcher includes a sleeve that has its bottom end coupled to arched sliding slots of the frame bar of the swinging arm by a pivot pin, a connection frame plate pivotally coupled between the pivot pin at the bottom end of the sleeve and a mounting lug at the rotary barrel, a spring member mounted around the sleeve and stopped above a stop flange of the sleeve and an adjustment screw assembly mounted in the sleeve and stopped above the spring member for allowing adjustment of the elevation of the supported object with less effort and positive positioning of the supported object after an elevation adjustment.
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