Telescopic tube support leg for photography

By incorporating a tensioning component and a drive component combined with a transmission rod in the telescopic support leg for photography, the unidirectional self-locking problem of the locking mechanism is solved, achieving bidirectional locking force and simplifying operation, thereby improving the safety and reliability of the product.

CN224364643UActive Publication Date: 2026-06-16DONGGUAN LIZHI INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIZHI INTELLIGENT TECH CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

The locking mechanism of existing telescopic support legs for photography has insufficient unidirectional self-locking force, which makes the leg tube easy to slip out or fall off. The operation is cumbersome and the structure is complex, which increases manufacturing costs and reduces reliability and service life.

⚗Method used

By combining a tensioning assembly and a drive assembly with a transmission rod, bidirectional locking is achieved by squeezing the anti-slip plate through a rotating sleeve. This simplifies the operation process and reduces the number of parts. The torsion spring provides rotational torque, and the friction of the anti-slip plate enhances the locking effect.

🎯Benefits of technology

It achieves bidirectional locking force during extension and retraction, improving safety and convenience, simplifying the operation process, reducing the number of parts, and enhancing product reliability and service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224364643U_ABST
    Figure CN224364643U_ABST
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Abstract

The utility model relates to photography equipment field, concretely is a telescopic tube support leg for photography, including at least one hollow outer sleeve and the inside sleeve that can move up and down in the outer sleeve, still include expansion assembly, drive assembly and transmission rod. Expansion assembly sets up at the junction of inside sleeve and outer sleeve, can pass through expansion and contraction to carry out position locking and position release, drive assembly is used for controlling expansion assembly to carry out expansion or contraction, the upper end of transmission rod and drive assembly are connected, and the lower end is arranged in expansion assembly and is transmission connection with it. Expansion assembly includes fixed base, rotary sleeve, torsional spring, fixed sleeve and abutting ring structure, still is equipped with the slide stop piece, and the slide stop piece sets up at the junction of inside sleeve and outer sleeve and is located between both. Drive assembly includes connecting seat, shift piece and limit sleeve. The utility model simple structure, convenient operation can realize the quick locking and release of support leg, improve the photographic work efficiency.
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