For home elevators, the first thing to consider is safety, such as overload protection, power failure emergency leveling, and so on. There are quite a lot of Screw Elevator brands on the market. Which operation mode is safe?
Hydraulic type: Main components: hydraulic pump, control cabinet, car, guiding system, the main transmission mode is the pressure oil in the oil cylinder, the structure is relatively simple, but because the oil spill pollutes the environment, the running noise is too big and the power is wasted, etc. It does not meet the development concept of environmental protection and energy saving in the modern elevator industry and is gradually eliminated.
Traction type: main components: control system, traction machine, door system, counterweight system, safety components, guiding system, the main transmission mode is motor rotation to drive the traction sheave, drive wire rope / steel belt to drive the car and the counterweight Relative operation. Because it is environmentally friendly, energy efficient, safe and saves building space, it is being used in large numbers.
Screw type: main components: control system, screw, safety nut, drive nut, safety door system, drive structure with nut screw, belonging to machine room-less elevator, due to structural safety, bottomless pit, no counterweight without car, self-contained shaft Space utilization can be used in the sky villas and duplex buildings, and in the leap.
In summary, the elevators in the home elevators are driven by traction and screw drives, which are relatively safe. You can find a few more comparisons.