Patent ID: 11953127
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 2:
3. The telescopic tube assembly according to claim 2, wherein the first tube is provided with a first open hole at a predetermined position of the outward offset arc portion, and the position limiter is placed between the outward offset arc portion and the second tube; the fastening structure includes a first nut and a first screw with a knob, the first nut is disposed between the position limiter and the outward offset arc portion, and the first screw with the knob is inserted through the first open hole to couple with the first nut; by locking the first screw with the knob, the position limiter is pressed by the first screw with the knob to push the second tube against the inward offset arc portion such that the second tube is clamped by the position limiter and the inward offset arc portion, thereby fixing the second tube and the first tube with respect to each other; by loosening the first screw with the knob, the second tube is released from the position limiter and the inward offset arc portion such that the second tube and the first tube are movable relative to each other.