By adopting the structure of the utility model, the tight closure state of the brake device and the housing can be relieved without opening the housing in the event of accidental power cut.
采用本实用新型的结构，意外停电后无须打开壳体即可解除制动装置与壳体的抱死状态。
By adopting the structure of the utility model, the tight closure state of the brake device and the housing can be relieved without opening the housing in the event of accidental power cut.
采用本实用新型的结构，意外停电后无须打开壳体即可解除制动装置与壳体的抱死状态。
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