Rotary inner lock
By designing a rotating internal locking structure, the problems of poor appearance and easy slippage of the telescopic rod locking structure are solved, achieving a reliable locking effect and improving the stability and aesthetics of use.
CN224550557UActive Publication Date: 2026-07-24王惠
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Patent Information
- Application Number
- CN202522125301.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-10-09
AI Technical Summary
Technical Problem
The existing telescopic pole's locking structure has a poor appearance, is prone to slippage, or the internal lock is easily linked to the shaft and cannot be locked, affecting the stability of use.
Method used
It adopts a rotating internal locking structure, including a screw, a nut clip, an expansion and contraction plastic part, and a rotating block. The locking is achieved by the cooperation of the nut clip and the expansion and contraction plastic part, and by the friction between the convex edge and the inner wall of the thick rod, thus preventing the internal lock shaft from rotating.
Benefits of technology
It features a built-in locking mechanism, which improves reliability, prevents slippage, ensures a secure lock, and maintains a clean and simple appearance.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a rotary inner lock which comprises a screw rod, a nut buckle is arranged on the screw rod in a threaded connection mode, an expansion and shrinkage plastic part is arranged at the narrow end of the nut buckle in a sleeved mode, a rotary block is movably connected to the other end of the expansion and shrinkage plastic part in an inserted mode, a polished rod is fixedly arranged at the end, away from the nut buckle, of the screw rod, and a through hole is formed in the expansion and shrinkage plastic part. The telescopic rod is of a built-in structure, an external lock is not needed, the conciseness and the exquisite degree of the overall appearance of the telescopic rod are prevented from being damaged, the expansion and contraction plastic part is extruded through the nut buckle to enable the protruding edges to abut against the inner wall of the thick rod, slipping is not prone to occurring in the locking process, and the telescopic rod is convenient to use. By means of the friction force between the protruding edges and the inner wall of the thick rod and the cooperation of the limiting protrusions and the limiting grooves, it is ensured that when the thin rod is rotated, only the screw is triggered to rotate and the nut buckle is axially moved, the nut buckle connecting shaft is not driven to rotate, and effective locking can be achieved.
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