Elevator shallow pit depth control device and control method

Abstract

The invention discloses an elevator shallow pit depth control device and control method. The elevator shallow pit depth control device comprises any door capable of entering a pit, an electrical safety system, a detection switch, a limit switch, an electrical reset device, a heightening seat, a car buffer, a first in-place switch and a second in-place switch; and when an elevator maintainer uses akey outside a hall to open any door capable of entering the pit, the detection switch arranged on the corresponding door acts, then the electrical safety system is triggered to act, normal operationof an elevator is stopped, and only when the maintainer enters the pit and installs the heightening seat between the car buffer and the pit ground to enable the car buffer to be lifted, the elevator can be overhauled and operated, so that the safety of pit maintainers can be ensured even if the pit depth is small. According to the elevator shallow pit depth control device and the control method, it is guaranteed that the pit has enough danger avoiding space, the safety of pit elevator maintainers is guaranteed, operation is easy, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator shallow pit depth control device and a control method thereof. Background technique [0002] With the continuous development of society, there are more and more high-rise buildings. Elevators, as the most important vertical means of transportation, are more and more widely used in buildings and gradually become an indispensable part of people's lives. [0003] For elevators in the traditional sense, according to the corresponding national standards, the design of the depth of the pit should be able to meet the sufficient safe-haven space for pit maintenance personnel; and for the installation of elevators on existing buildings in old urban areas, due to the underground The pipe network is often complicated, which makes it impossible to dig deep into the pit, that is, it cannot guarantee enough safe-haven space for the pit, which endangers the safety of the pit maint...

AI Technical Summary

Problems solved by technology

[0003] For elevators in the traditional sense, according to the corresponding national standards, the design of the depth of the pit should be able to meet the sufficient safe-haven space for pit maintenance personnel; and for the installation of elevators on existing buildings in old urban areas, due to the underground The pipe network is often complicated, which makes it impossible to dig deep into the pit, that is, it cannot guarantee enough safe space for the pit, which endangers the safety of the pit maintenance personnel.

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