| 摘要 |
Disclosed in the present invention is a handle locking device (100), comprising a first frame (110), a first snap hook (120) and a second frame (130). A second snap hook (1142) is provided on the first frame (110); the first snap hook (120) is rotatably mounted on the first frame (110); the second frame (130) is rotatably mounted on the first frame (110) and can fix the first snap hook (120) to the first frame (110); a protruding portion (139) is formed on the second frame (130); and the protruding portion (139) can push the first snap hook (120) towards the first frame (110). By having the first snap hook (120) and second snap hook (1142) disposed asymmetrically on the first frame (110), accidental mounting of the "OFF" position of the handle locking device (100) in the "ON" position of the circuit breaker during installation by an operator can be avoided, so the current-passing state can be guaranteed, as can the lives of operators during maintenance work, with increased personal safety for staff. Moreover, since the protruding portion (139) can push the first snap hook (120) towards the first frame (110), forced deformation of the snap claw (123) and second snap hook (1142) can be prevented, increasing the reliability of the handle locking device (100). |
