Elevator braking system and its blocking device
A blocking device and elevator system technology, applied in the field of elevators, can solve problems such as deep digging pits and inability to carry out elevator shafts
Active Publication Date: 2020-10-16
HITACHI ELEVATOR CHINA
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- Application Information
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Problems solved by technology
[0004] Based on this, it is necessary to provide an elevator braking system and its blocking device for the problem that the elevator shaft cannot be dug deep into the pit due to limited conditions.
Method used
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[0030] Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:
[0031] It should be noted that when an element is “fixed” to another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the descrip...
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The invention relates to an elevator stopping system and a resisting device thereof. The resisting device comprises a lifting rope, a resisting device and a damping piece, wherein the resisting devicecomprises a resisting piece; the resisting piece is provided with a resisting hole, so that the resisting piece is arranged as an annular structure; the damping piece is arranged on the lifting rope;the sectional dimension of the damping piece is larger than the diameter of the resisting hole; a gradient part arranged in a circular truncated cone shape is further arranged at the end part of thedamping piece; and the sectional radius of the gradient part is smaller than the radius of the resisting hole, so that the gradient part can penetrate through the resisting hole. The elevator stoppingsystem comprises a lift car, a guide rail, a stopping device and the resisting device. Through arranging the resisting device and the damping piece, after the gradient part of the damping piece penetrates through the resisting hole, since the sectional dimension of the damping piece is larger than the diameter of the resisting hole, an effect on resisting the damping piece is achieved, and further movement is avoided; and when an elevator moves, the resisting device is adopted to effectively resist or trigger the stopping of the lift car, so that after the lift car is stopped, an enough danger avoiding space is remained for a bottom pit.
Description
technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator stopping system and a blocking device thereof. Background technique [0002] In the field of adding elevators to old buildings, due to the limitations of sewers and pipelines, the pit cannot be deeply excavated during the construction of the elevator shaft, which makes the depth of the pit unable to meet the requirements of GB7588-2003. In this regard, the National Standards Committee supplemented and formulated GB28621-2012 "Safety Specifications for New Elevator Manufacture and Installation Installed in Existing Buildings", which is mainly aimed at pit depths that cannot meet GB7588-2003 requirements due to site conditions The additional specifications for pit depth are additionally formulated. [0003] GB28621-2012 "Safety Code for Manufacture and Installation of New Elevators Installed in Existing Buildings" stipulates that after the elevator car is effectively...
Claims
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IPC IPC(8): B66B5/22B66B5/02B66B5/28
CPCB66B5/02B66B5/22B66B5/284
Inventor 莫振锋黄敏冬谭晓亨
Owner HITACHI ELEVATOR CHINA