Bracket assembly and retaining device for collapsible stand
A bracket assembly is provided with a shell, a pivotal first curved member on one end of a recessed shell bottom, a pivotal second curved member on the other end of the shell bottom, a link including a slot, a first pin driven through the first curved member and the slot to fasten the first curved member and the link together, and a third hole at an other end, a cylindrical first actuation member, a cylindrical second actuation member, a second pin for fastening the first actuation member and the link together; a biasing member biased between the first stop member and the first actuation member; and a knob at a cap. A retaining device is also provided so that the sliding tube can slide in a transverse channel of retaining device, thereby adjusting length of the sliding tube.
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Chin-Chin
Chang