Telescopic ladder

The utility model discloses a telescopic ladder, comprising a plurality of ladder post unit, a connection component, a locking member and a transverse ladder plate. Wherein, each ladder post unit is a hollow ladder tube, the higher the tube position, the smaller the tube diameter, the upper stage la...

Full description

Saved in:
Bibliographic Details
Main Author JINGYAO GUO
Format Patent
LanguageEnglish
Published 09.05.2007
Subjects
DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL
FIXED CONSTRUCTIONS
LADDERS
Online AccessGet full text

Cover

More Information
Summary:The utility model discloses a telescopic ladder, comprising a plurality of ladder post unit, a connection component, a locking member and a transverse ladder plate. Wherein, each ladder post unit is a hollow ladder tube, the higher the tube position, the smaller the tube diameter, the upper stage ladder post unit is able to suit and extend with the lower ladder post unit mutually; the connection component is horizontally suited on the upper end of the ladder post unit, using the connection component inner side locking member to retain in the ladder post unit fixed hole, and making the ladder post unit to extend and fix each other, the outside of the ladder post unit is enclosed by the transverse ladder plate. Because the locking member is improved, the ladder will not be loosed by the outer resorted force while the ladder extends, which ensures the operation safety.
Bibliography:Application Number: CN20062113407U