Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SEALING SLEEVE AND TELESCOPIC LADDER
Document Type and Number:
WIPO Patent Application WO/2018/192095
Kind Code:
A1
Abstract:
A sealing sleeve and a telescopic ladder, which relate to the technical field of household tools, the sealing sleeve comprising: an upper sealing plate (100), a lower sealing plate (200) and two air closing sheets (300); the upper sealing plate (100) and the lower sealing plate (200) are fixedly connected by means of a connecting member (800), the upper sealing plate (100) and the lower sealing plate (200) each being provided thereon with a ventilation hole (101); the air closing sheets (300) are fixed on a side of the upper sealing plate (100) which faces away from the lower sealing plate (200) and a side of the lower sealing plate (200) which faces away from the upper sealing plate (100), respectively, and an air closing sheet (300) may control the closing and opening of the ventilation hole (101). The present invention alleviates the technical problem in the existing technology wherein a user may be easily pinched or crushed due to an excessively fast falling speed when a telescopic ladder is collapsed.

Inventors:
ZHOU, Minqing (No.30 Zhenxing Road, Youxitang VillageZhiying Street, Yongkan, Jinhua Zhejiang 0, 321000, CN)
HUANG, Jinchai (No. 31 Jinqiutang, Loutang VillageXicheng Street, Yongkan, Jinhua Zhejiang 0, 321000, CN)
Application Number:
CN2017/091530
Publication Date:
October 25, 2018
Filing Date:
July 03, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ZHOU, Minqing (No.30 Zhenxing Road, Youxitang VillageZhiying Street, Yongkan, Jinhua Zhejiang 0, 321000, CN)
HUANG, Jinchai (No. 31 Jinqiutang, Loutang VillageXicheng Street, Yongkan, Jinhua Zhejiang 0, 321000, CN)
International Classes:
E06C7/00; E06C1/12; E06C1/383
Foreign References:
CN203334945U2013-12-11
CN205859033U2017-01-04
CN204436248U2015-07-01
CN205840753U2016-12-28
CN206111921U2017-04-19
CN205400572U2016-07-27
CN205638198U2016-10-12
CN201170058Y2008-12-24
JPH0893371A1996-04-09
US20070267252A12007-11-22
Other References:
None
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (Room 1215-1218, Floor 12Left Bank Community No.68 Beisihuanxilu,Haidian District, Beijing 0, 100080, CN)
Download PDF: