Title:
TELESCOPIC TUBE
Document Type and Number:
WIPO Patent Application WO/2024/082464
Kind Code:
A1
Abstract:
A telescopic tube, comprising: an outer tube (100), which is provided with a mounting slot (110) extending along the length direction and a detachment-prevention slot (120) that is in communication with a side part of the mounting slot and extends along the circumferential direction of the outer tube; and an inner tube (200), a first protrusion (310) and a second protrusion (320) protruding from an outer wall thereof. The first protrusion and the second protrusion can move back and forth along the length direction of the mounting slot, and the first protrusion can rotate about an axis of the outer tube, so as to be fixed in the mounting slot; when the telescopic tube must be extended, the inner tube extends out relative to the outer tube, and the first protrusion rotates about the axis of the outer tube when the second protrusion moves to one side of the detachment-prevention slot, and the second protrusion can enter the detachment-prevention slot by means of the mounting slot to limit relative extension and contraction of the inner tube and the outer tube, thereby limiting relative movement of the inner tube and the outer tube along the axial direction and the circumferential direction. In this way, the supporting stability of the telescopic tube is improved and the safety of photography equipment is guaranteed. In addition, the described telescopic tube is simple and ingenious in structure and convenient to extend and contract.
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Inventors:
WEN WENHUI (CN)
Application Number:
PCT/CN2023/071337
Publication Date:
April 25, 2024
Filing Date:
January 09, 2023
Export Citation:
Assignee:
ZHONGSHAN BAOYI METAL & PLASTIC PRODUCTS CO LTD (CN)
International Classes:
F16B7/14
Domestic Patent References:
| WO2018024045A1 | 2018-02-08 |
Foreign References:
| EP2574799A1 | 2013-04-03 | |||
| CN113757236A | 2021-12-07 | |||
| CN204985212U | 2016-01-20 | |||
| CN205423433U | 2016-08-03 | |||
| CN217003891U | 2022-07-19 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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