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Elevator pit maintaining, checking and protection system

An elevator pit, inspection and protection technology, applied in the field of elevators, to achieve the effect of saving construction costs

Active Publication Date: 2010-07-28
HITACHI BUILDING EQUIP MFG TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For machine room-less elevators currently on the market, due to the cancellation of the machine room, some installation parts in the machine room are moved to the bottom pit for installation, which requires a larger pit depth and has a greater impact on buildings.

Method used

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  • Elevator pit maintaining, checking and protection system
  • Elevator pit maintaining, checking and protection system
  • Elevator pit maintaining, checking and protection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like image 3 As shown, when the elevator needs to be overhauled, the maintenance personnel enter the pit, and according to the operation instructions of the pit, the maintenance protection device 4 is detached from the bottom pit base and the limit bracket and fixed on the car buffer 3 by bolts. On the support surface, another detection switch 7 detects the existence of the maintenance protection device 4 and sends a signal to the elevator control system to control the elevator to be in the inspection running state. At this time, the pit of the elevator is equivalent to a safe space that meets the requirements for the depth of the pit in 5.7.3.3 of the "GB7588-2003 Safety Code for Elevator Manufacturing and Installation". After the maintenance personnel complete the work, the maintenance protection device must be detached from the car buffer and reset to figure 2 Only in the form shown can the elevator return to the normal operation state, otherwise, the elevator can...

Embodiment 2

[0041] like Figure 8 , Figure 9 As shown, when the elevator needs to be overhauled, the maintenance personnel enter the pit, and according to the operation instructions of the pit, detach the maintenance protection device 4 from the limit bracket 1 and insert the post of the maintenance protection device 4 into the buffer 3 Cylindrical endoporus 31 gets final product, and this moment, maintenance protection device 4 can trigger another detection switch 7 action in the buffer seat, and another detection switch sends signal to elevator control system control elevator and is in maintenance running state. During the inspection running state, only the auxiliary inspection control device 2 is allowed to control the elevator to perform inspection operation. At this time, the pit of the elevator is equivalent to a safe space that meets the requirements for the depth of the pit in 5.7.3.3 of the "GB7588-2003 Safety Code for Elevator Manufacturing and Installation". After the maintena...

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Abstract

The present invention belongs to the field of lift technology, and discloses method of increasing safety overhaul space in lift pit. The method is to set a support plane capable of being eliminated and interlinking with the cage buffer in the lift well space over the cage buffer supporting plane so as to ensure minimum vertical distance between the lift pit bottom and the cage bottom of 0.50 m. The present invention also discloses one kind of protecting system for maintenance in lift pit, and the protecting system consists of a lift pit pedestal, a buffer seat, a cage buffer and a maintenanceprotector mounted movably onto the cage buffer supporting plane. The present invention has effective utilization of the lift pit depth and saving in building cost, and can reduce the required lift pit depth and raise the maintenance safety.

Description

technical field [0001] The invention belongs to the field of elevators, and relates to a method for increasing the safety space for inspection and maintenance of an elevator bottom pit and a maintenance, inspection and protection system for an elevator bottom pit. Background technique [0002] In the current elevator industry, 5.7.3.3 of "GB7588-2003 Safety Code for Elevator Manufacturing and Installation" has relevant regulations on the depth of the elevator pit. The regulation requires that there should be enough safe space in the pit, the purpose of which is to protect the safety of personnel entering the pit. For machine room-less elevators on the market, due to the cancellation of the machine room, some installation parts in the machine room are moved to the bottom pit for installation, which requires a larger pit depth and has a greater impact on buildings. If the depth of the pit of the building cannot meet the above-mentioned requirements, it cannot be used for ins...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
Inventor 黎毅成唐岚刘建军肖楠
Owner HITACHI BUILDING EQUIP MFG TIANJIN
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