Title:
SELF-PROPELLED REFUGE LADDER STRUCTURE FOR EMERGENCY USE
Document Type and Number:
WIPO Patent Application WO/2019/213788
Kind Code:
A1
Abstract:
Provided is a self-propelled refuge ladder structure for emergency use, which is provided inside or outside a high building in a penetrating manner. The refuge ladder is connected to a transmission unit (2) by means of a gravity speed reduction device (1), wherein the transmission unit (2) comprises a pair of chains (21), multiple bearing seats (3) are provided on the pair of chains (21), the multiple bearing seats (3) bear a person who is escaping, the chains (21) and the bearing seats (3) are driven to move downward with the weight of the person who is escaping, and the descending speed of the person who is escaping is reduced by means of the gravity speed reduction device (1). The descending speed is fixed and stable when within a bearing weight range so as to achieve the aims of stability and reliability and of ensuring that the general public and people with mobility difficulties on high floors can escape quickly and safely.
Inventors:
TANG PO-YU (CN)
Application Number:
PCT/CN2018/000172
Publication Date:
November 14, 2019
Filing Date:
May 11, 2018
Export Citation:
Assignee:
TANG PO YU (CN)
International Classes:
A62B1/00; B66B9/10
Foreign References:
| CN207286461U | 2018-05-01 | |||
| CN201848025U | 2011-06-01 | |||
| CN2558401Y | 2003-07-02 | |||
| CN202876135U | 2013-04-17 | |||
| CN1122305A | 1996-05-15 | |||
| CN203143898U | 2013-08-21 | |||
| US6390235B1 | 2002-05-21 | |||
| JP2003285985A | 2003-10-07 |
Attorney, Agent or Firm:
KELONG INTERNATIONAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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