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Method for increasing elvator pit examination and repair safety space and elvator pit maintain check protection system

A technology for elevator pits and safe spaces, applied in the field of elevators, can solve problems such as the depth of large pits and the impact of buildings, and achieve the effect of saving construction costs.

Active Publication Date: 2007-11-28
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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  • Method for increasing elvator pit examination and repair safety space and elvator pit maintain check protection system
  • Method for increasing elvator pit examination and repair safety space and elvator pit maintain check protection system
  • Method for increasing elvator pit examination and repair safety space and elvator pit maintain check protection system

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Experimental program
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Effect test

Embodiment 1

[0035] As shown in Figures 1 to 5, the elevator pit maintenance, inspection and protection system according to the present invention mainly consists of a pit base 8 installed in the pit, a buffer seat 5, a car buffer 3, a detection system, and a secondary detection system. The control device 2 and the maintenance protection device 4 are composed. In this embodiment, the car buffers 3 are oil pressure buffers, the number is 1-2, and they are arranged side by side on the base 8 of the pit. The main body of maintenance protection device 4 is a column body 41, and one end of column body 41 has a support surface 42, and the installation part 43 of column body other end is an installation end surface, and each maintenance protection device can be installed on the car by installation part 43 movably. Car buffer 3 supporting surface. The limit support 1 is installed on the buffer seat 5 by bolts. The detection system includes a limit switch 6 and another limit switch 7, the limit sw...

Embodiment 2

[0039] As shown in Figures 6 to 9, in this embodiment, the difference between the elevator pit maintenance, inspection and protection system of the present invention and Embodiment 1 is that the car buffer 3 is a spring buffer, and the spring buffer There is a cylindrical inner hole 31 in the device; the installation part 43 of the maintenance protection device 4 is a post; the other limit switch 7 is installed in the buffer seat. Other structures are the same as in Embodiment 1. When the cylinder of the maintenance protection device 4 is fixed between the limit brackets 1 by bolts, it does not need to be fixed with the pit base. When the maintenance protection device 4 needs to be installed on the buffer, it is only necessary to insert the post into the cylindrical inner hole in the buffer.

[0040] As shown in Figure 7, when the maintenance protection device 4 is fixed between the limit brackets 1, the detection switch 6 will be triggered to act, and the detection switch se...

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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 maintenance protector 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 inst...

Claims

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Application Information

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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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