Who will supervise the elevator slide and who will guarantee the safety of the owner? In this case, how do owners protect their rights?

Elevator accidents can be reported to the technical supervision department.

Residential elevators generally have qualified inspection marks in the elevator car, including inspection date, inspection unit and maintenance unit.

If the elevator accident causes personal injury and property loss, you can directly sue the elevator maintenance unit and investigate the management responsibility of the property management company. If the elevator maintenance unit is a property company, then directly sue the property company.