| CPC B25G 1/04 (2013.01) [F16B 7/105 (2013.01)] | 8 Claims |
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1. A telescopic rod device capable of quick adjustment, comprising:
an outer tube having a lengthwise axis, and including an outer tube wall that surrounds an outer tube inner space, and a plurality of adjustment holes that penetrate through said outer tube wall and that are spaced apart from each other along the lengthwise axis;
an inner tube mounted inside said outer tube, and being movable along the lengthwise axis, and having
an inner tube wall that surrounds an inner tube space, and
a through hole that is formed through said inner tube wall;
an actuator unit mounted inside said inner tube, being movable in the lengthwise axis, and having at least one actuating portion; and
an adjustment control unit installed inside said inner tube, and having
an restraining member that has at least one restraining portion to interact with said at least one actuating portion, and that is movable along a first widthwise axis of said outer tube, which is perpendicular to the lengthwise axis,
a resilient member that is interconnected to said restraining member, and
a lug connected to said resilient member and protruding from said through hole of said inner tube to engage with one of said adjustment holes of said outer tube wall of said outer tube;
wherein said at least one actuating portion is an inclined slide surface that is inclined with the lengthwise axis and the first widthwise axis, and said at least one restraining portion is a guide post slidable on said inclined slide surface;
wherein said resilient member constantly biases said lug to extend out of said through hole of said inner tube and engage one of said adjustment holes, and when said actuator unit moves relative to said inner tube along the lengthwise axis, said at least one actuating portion of said actuator unit actuates movement of said at least one restraining portion of said restraining member along the first widthwise axis, and said restraining member acts on said resilient member so that said lug disengages from said one of said adjustment holes, thereby converting said lug between an engaging position and a disengaging position;
wherein said resilient member has a U-shaped curved portion and two end portions extending from opposite ends of said curved portion, said lug being connected to one of said two end portions, and said one of said two end portions resiliently urging said restraining member; and
wherein, when said actuating portion of said actuator unit actuates said at least one restraining portion of said restraining member, said restraining member causes said resilient member and said lug to move and allows said lug to change between said engaging position and said disengaging positon.
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