Cs- 1a construction elevator safety device detector

1. Insufficient braking torque is the technical cause of this accident.

2. The main technical reason for the hanging cage falling is that the transmission plate is not provided with a gear derailment prevention stop.

3. Replacing the bolt shaft with inappropriate specifications is an important technical reason for the accident.

4. The structural defects of the rear wheel and transmission plate are the important technical reasons for the accident.