A motor that can be self-locked when power is off
By using the multi-plane bonding of the square shaft and the locking block and the electromagnet linkage structure, the problem of insufficient reliability of traditional motor locking is solved, achieving a stable and reliable locking effect, enhancing the stability of the equipment under vibration or external interference, and avoiding motor overload and burnout.
CN224459534UActive Publication Date: 2026-07-03绍兴市迈奇驱动科技股份有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 绍兴市迈奇驱动科技股份有限公司
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-03
Smart Images

Figure CN224459534U_ABST
Abstract
This utility model relates to the field of motor technology, specifically a self-locking motor that can be powered off. It includes a motor body with a rotating shaft passing through it. Both ends of the rotating shaft penetrate both ends of the motor body. One end of the rotating shaft is the tail end, and the other end of the tail end is provided with a square shaft. A locking block is provided on the square shaft, and the locking block engages with the square shaft to lock the motor shaft. In this self-locking motor, the worm gear and worm wheel of the motor body mesh to achieve stable power output and conversion. The square shaft at the tail end of the rotating shaft, in conjunction with the friction ring on the inner wall of the locking block, utilizes the multi-plane contact between the square hole and the square shaft to significantly improve locking reliability. The rotational design of the friction ring, combined with the limiting of the movable groove, solves the problem of motor burnout caused by electromagnet delay. Spring one ensures accurate reset of the friction ring, guaranteeing stable cyclic operation. The linkage structure between the electromagnet and spring two enables rapid switching between locking and releasing.
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