Fully automatic telescopic rod
AssigneeXiamen Mingho Brothers Mfg Co., Ltd.
InventorsTien-Cheng Chen, Sun-Feng Sung
Life of this patent
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Abstract
A fully automatic telescopic rod includes at least two sleeves and one operation handle. The operation handle is fitted to a lower end of an outer sleeve of the at least two sleeves. A first inner sleeve of the at least two sleeves is movably fitted in the outer sleeve. The operation handle includes a power mechanism therein. The power mechanism is connected to a screw rod extending into the first inner sleeve and drives the screw rod to rotate in a forward or reverse direction. A nut is mated with the screw rod and fixed to a lower end of the first inner sleeve. The first inner sleeve can be unfolded and folded relative to the outer sleeve and can be positioned at any position.
Claims18
A fully automatic telescopic rod, comprising:
- at least two sleeves and one operation handle, the operation handle being fitted to a lower end of an outer sleeve of the at least two sleeves;
- a first inner sleeve of the at least two sleeves being movably fitted in the outer sleeve;
- the operation handle including a power mechanism therein, the power mechanism being connected to a screw rod extending into the first inner sleeve;
- a nut being mated with the screw rod, the nut being fixed to a lower end of the first inner sleeve;
- the power mechanism driving the screw rod to rotate in a forward or reverse direction;
- wherein an upper end of the outer sleeve is provided with a limit mechanism, thereby preventing the first inner sleeve from disengaging from the upper end of the outer sleeve;
- wherein the limit mechanism includes an outer sleeve fixing ring to confine the first inner sleeve, and the nut is fixed to the first inner sleeve through a first inner sleeve plug disposed at the lower end of the first inner sleeve;
- wherein the fully automatic telescopic rod is composed of three sleeves, a second inner sleeve and an adjusting pull rope are provided in the first inner sleeve, the adjusting pull rope includes an opening rope and a closing rope, first ends of the opening rope and the closing rope are fixed to a second inner sleeve plug provided at a lower end of the second inner sleeve;
- a second end of the opening rope is inserted between the second inner sleeve and the first inner sleeve to extend out of the first inner sleeve and pass through a first inner sleeve fixing ring pulley provided at an upper end of the first inner sleeve and then is fixed to a lower end of the outer sleeve;
- a second end of the closing rope is inserted between the second inner sleeve and the first inner sleeve to extend out of the first inner sleeve and pass through a first inner plug pulley provided on the first inner sleeve plug at the lower end of the first inner sleeve and then is fixed to the upper end of the outer sleeve or the outer sleeve fixing ring at the upper end of the outer sleeve.
Dependencies are inferred from the claim text.