Safe and cable-free elevator

Abstract

The invention relates to a safe and cable-free elevator. The safe and cable-free elevator comprises an elevator shaft and an elevator car and is characterized in that a support device and a screw lifting device are arranged at the lower end of the elevator car, the screw lifting device is coordinated with toothed rails on the two lateral walls of the elevator shaft to drive the elevator car to ascend and descend, and a manual rescue device is arranged between the support device and the elevator car. The safe and cable-free elevator has the advantages that the elevator car is driven to ascend and descend by the coordination of screws and the toothed rails, the toothed rails clamp the elevator car when the elevator malfunctions, heavy casualties caused by straight descending when the cablesof an existing elevator break are avoided, and safety and reliability are achieved; meanwhile, the manual rescue device is arranged at the bottom of the elevator car, the manual rescue device is started to ascend the elevator car to an landing opening to allow passengers to escape conveniently when the elevator is stuck between floors, the passengers do not need to wait for rescue, and the life safety of the passengers is guaranteed; the toothed rails adopt sectioned small components to facilitate transportation and replacement; core stressed parts which are prone to damage are simplified, andthe elevator is convenient to maintain and low in maintenance cost.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a safe cable-free elevator. Background technique [0002] In recent years, the rapid growth of my country's economic construction has brought unprecedented opportunities for the elevator industry. With the rapid development of the industry, my country's elevator products have accounted for more than 50% of the world's share. Statistics from the Elevator Industry Association show that my country's elevator industry is developing rapidly. At present, the growth rate of elevator demand exceeds 15%, and the space is huge. The number of elevators registered in my country is growing at a rate of more than 20% per year. As early as a few years ago, my country has become the country with the largest number of elevators in the world. Currently, China is using The number of elevators has exceeded 1.6 million. As the world's largest elevator market, my country's elevator output continues ...

AI Technical Summary

Problems solved by technology

[0004] At present, lifts are very popular and are mainly used in office buildings and residential buildings; however, while bringing convenience to people’s lives, there are also many potential safety hazards: 1. Traditional elevators usually use ropes for traction. When the rope breaks at a high floor, the elevator will plummet down, which is prone to major safety accidents and seriously threatens the lives of passengers; 2. When the power fails or the elevator fails, the elevator is stuck in the middle of the floor, and the passengers in the elevator can only wait. Rescue, unable to save oneself, prone to safety accidents

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