A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Portable ladder for ships
The invention relates to a portable ladder for ships. The portable ladder comprises ladder posts. Hooks are fixedly connected to the tops of the ladder posts, diagonal bracings are respectively hinged to the bottoms of the ladder posts, and grooves which are used for storing the diagonal bracings are formed in the lower ends of the ladder posts. The diagonal bracings are of retractable structures, and the retractable structures comprise first bracing tubes and second bracing tubes. The portable ladder for the ships has the advantages that the diagonal bracings are fixed to the lower ends of the ladder posts, and accordingly the portable ladder is convenient to use and store; the hooks can be fixed when the portable ladder is about to be used, then angles of the diagonal bracings can be adjusted as needed, the bottom of the ladder can be braced, the ladder can be prevented from moving, the diagonal bracings can be arranged in the grooves after the portable ladder is used, accordingly, the portable ladder is convenient to use, and requirements on safety use can be met without increase of extra cost.
Portable ladder for ships
The invention relates to a portable ladder for ships. The portable ladder comprises ladder posts. Hooks are fixedly connected to the tops of the ladder posts, diagonal bracings are respectively hinged to the bottoms of the ladder posts, and grooves which are used for storing the diagonal bracings are formed in the lower ends of the ladder posts. The diagonal bracings are of retractable structures, and the retractable structures comprise first bracing tubes and second bracing tubes. The portable ladder for the ships has the advantages that the diagonal bracings are fixed to the lower ends of the ladder posts, and accordingly the portable ladder is convenient to use and store; the hooks can be fixed when the portable ladder is about to be used, then angles of the diagonal bracings can be adjusted as needed, the bottom of the ladder can be braced, the ladder can be prevented from moving, the diagonal bracings can be arranged in the grooves after the portable ladder is used, accordingly, the portable ladder is convenient to use, and requirements on safety use can be met without increase of extra cost.
Portable ladder for ships
ZHENG TIANXIANG (author) / GENG JIWEN (author) / DAI MALI (author) / SHI GUANGWEI (author) / JIANG WEI (author)
2015-12-02
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern