Safety type elevator maintenance control device

Abstract

The invention discloses a safety type elevator maintenance control device. The safety type elevator maintenance control device comprises a plurality of maintenance modules and a safety loop module, wherein each maintenance module comprises a car top maintenance module, a car maintenance module, a bottom pit maintenance module, a shaft way platform maintenance module, a first signal adapter plate and a second signal adapter plate; each maintenance module comprises maintenance switches for controlling an elevator to enter or exit a maintenance state as well as an up button switch and a down button switch, wherein the maintenance switches are a plurality of groups of contact mechanical rotation switches; and the safety loop module comprises each maintenance switch which is in series connected in the elevator safety loop and a maintenance operation button switch which is in parallel connected to each maintenance switch. The safety type elevator maintenance control device with the structure effectively guarantees safety of elevator maintenance staff; moreover, existing connecting lines of the elevator are sufficiently utilized through communication control, so that cable lines are reduced; and a maintenance signal is separated form an emergency electric signal, so that mounting and maintaining efficiency of the elevator are improved.

Description

technical field [0001] The invention relates to a control device for inspection and maintenance of elevators, in particular to a safe elevator inspection control device meeting the requirements of the new national standards of the elevator industry. Background technique [0002] During the daily use of the elevator, it is necessary to carry out normal maintenance and repairs and maintenance and repairs in case of failure. In order to carry out the maintenance work safely, the requirements for the maintenance and operation control of the new national standard of the elevator industry mainly include the following points: [0003] 1.1 Inspection control device: This device must be installed on the car roof and in the pit of the elevator. [0004] 1.2 If multiple inspection control devices are switched to the "inspection" state, operating any inspection control device should not make the car run, unless the same button on all inspection control devices is operated at the same t...

AI Technical Summary

Problems solved by technology

[0006] However, although some elevators currently on the market already have circuits with multiple inspection control devices that meet the above requirements, because the positions of the multiple inspection devices are different, it will cause inconvenient wiring and waste wires when connecting, or connect The circuit is complicated and many components are used, which increases the manufacturing cost of the elevator; in addition, the maintenance signal is usually connected in parallel

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