Switching household elevators. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Electrician's Handbook
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The article is devoted to a new type of household electrical equipment - a personal elevator.
One of the elevator designs is described in [1]. Recently, I had to electrify an elevator built from two warehouse hoists. The owner, having abandoned flights of stairs, saved thousands of hryvnias, while significantly increasing the usable volume of the entire house. Lifting several hundred kilograms, the elevator consumed only 100 watts of electricity. In the event of a breakdown of the elevator and a power outage, the communication between the floors was duplicated by an external "fire" staircase. Although the lift itself had a double, very simple and reliable protection in case of a cable break, several old tires from automobile wheels were thrown into the bottom of the mine.
What should be the simplest schemes of elevators, I had to guess myself, since the switching of the elevator was stolen, and in the material [1] there was no electrical circuit. The circuit design of Fig. 1 was immediately rejected: there are too many conductors going into the cabin.
I settled on the diagram in Fig. 2, although to transmit three commands ("up", "stop" and "down"), instead of two wires, one wire of a safe voltage of 12 ... 36 V could be dispensed with (Fig. 3). The scheme of Fig. 2 is tempting by using a very simple "joystick" with self-return to the "stop" position.
It is better to install an elevator at the very beginning of building a house, then it can be used as a crane for supplying building materials.
An individual elevator is good when a disabled person lives in the house. An ordinary person simply cannot imagine the whole complex of difficulties that our disabled people live with. I think that the elevator will be able to solve at least part of their problems.
References:
- Zaitsev A.R. Elevator in the country//Electric. - 2003. - No. 7. - P.17.
Author: Y. Bearded
See other articles Section Electrician's Handbook.
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