A bolt loosening prevention device
By designing an anti-loosening bolt device, and utilizing the cooperation of the locking mechanism and the locking groove, the problem of bolts loosening due to vibration is solved, achieving a stable bolt connection and preventing equipment damage.
CN224380360UActive Publication Date: 2026-06-19SICHUAN DIPAIRUI TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN DIPAIRUI TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-19
Smart Images
Figure CN224380360U_ABST
Abstract
A bolt-locking prevention device includes a fixed entity, a bolt, and a locking mechanism. The fixed entity has a threaded hole on its surface and multiple locking holes arranged in a circumferential array around the axis of the threaded hole. The bolt, screwed into the threaded hole, includes a nut with multiple arc-shaped locking grooves on its lower end face. A threaded rod matching the threaded hole is located at the lower end of the nut. The locking mechanism is sleeved on the outer periphery of the threaded rod and includes a ring plate. Multiple upper locking pins, each matching a locking groove, are located on the upper end face of the ring plate. Multiple spring pieces are located on the outer periphery of the ring plate, each spring piece having a lower locking pin matching a locking hole at one end. This bolt-locking prevention device has a simple structure and can prevent bolt connections from loosening, thus avoiding equipment damage.
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