Hydraulic elevator updating method

An update method and elevator technology, applied in elevators, transportation and packaging, etc., can solve the problems that elevators cannot be updated, the car must be stopped, and elevators must be used, so as to achieve the effect of operating efficiency
CN102009893BInactive Publication Date: 2013-12-04TOSHIBA ELEVATOR KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TOSHIBA ELEVATOR KK
Publication Date
2013-12-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a hydraulic elevator updating method. A scaffold (24) is equipped at an upmost ground height where the updating operation is performed. For causing a cage (2) to arrive at a preset storey below the upmost storey, an overwinding detection device (13) which is used as a safety device, a compulsory stopping device (14), a compulsory speed reduction device (15) and an upmost distance ensuring detection device (16) are moved from a preset upmost storey to an upmost layer (a certain fixed storey below the upmost story of the lifting passage) where the cage (2) serves in the updating operation. A control circuit of a hydraulic elevator control plate (10) is varied for invalidating the cage calling and waiting hall calling of the storey above the upmost storey where the cage (2) services in the updating operation. Furthermore, the components such as a windlass (31) and a no-machine-room elevator control plate (32) are transported as the components of a newly equipped cable type no-machine-room elevator.
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Description

technical field

[0001] The invention relates to a hydraulic elevator updating method, in particular to a hydraulic elevator updating method for updating a hydraulic elevator to a cable type elevator without a mechanical room. Background technique

[0002] In a hydraulic elevator, a hydraulic cylinder approximately equal to the length of the lifting stroke is fixed to the lower part of the lifting path, and the car is directly raised and lowered by a plunger that expands and contracts up and down by hydraulic pressure.

[0003] Conventionally, when upgrading a hydraulic elevator to a cable-type elevator without a machine room, it was necessary to stop the elevator.

[0004] The reason for this is that the structure of a hydraulic elevator and a cable-type elevator without a machine room are completely different. Therefore, when updating, it is necessary to disassemble the installed hydraulic cylinder and plunger and move it out from the entrance and exit of the lobby on the l...

Claims

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