A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Portable type combined ladder
The invention discloses a portable type combined ladder. The portable type combined ladder comprises a hollow ladder column A, wherein a light hole and a bolt hole are formed in the outer side of the hollow ladder column A; a plurality of through holes are formed in the hollow ladder column A; a plurality of square holes are formed in the inner side of the hollow ladder column A; the light hole is connected with a hollow ladder column B; a hinged hole is formed in the top of the hollow ladder column B; a transverse rod is mounted on the square holes; and the transverse rod is fixed on the hollow ladder column A and the hollow ladder column B by fixing bolts. The hollow ladder column A provided with the light hole and the hinged hole, and the hollow ladder column B are arranged, so that the rapid conversion of common H type, lengthened type and herringbone ladders is easy to realize; the hollow ladder column A, the hollow ladder column B and the transverse rod which have different section sizes are arranged so that the detached transverse rod can be easily arranged in an inner cavity of the hollow ladder column B and the hollow ladder column B can be arranged in an inner cavity of the hollow ladder column A; and the storage space is saved and the portable type combined ladder is convenient to carry, has a simple structure, is convenient to operate and is economical and practical.
Portable type combined ladder
The invention discloses a portable type combined ladder. The portable type combined ladder comprises a hollow ladder column A, wherein a light hole and a bolt hole are formed in the outer side of the hollow ladder column A; a plurality of through holes are formed in the hollow ladder column A; a plurality of square holes are formed in the inner side of the hollow ladder column A; the light hole is connected with a hollow ladder column B; a hinged hole is formed in the top of the hollow ladder column B; a transverse rod is mounted on the square holes; and the transverse rod is fixed on the hollow ladder column A and the hollow ladder column B by fixing bolts. The hollow ladder column A provided with the light hole and the hinged hole, and the hollow ladder column B are arranged, so that the rapid conversion of common H type, lengthened type and herringbone ladders is easy to realize; the hollow ladder column A, the hollow ladder column B and the transverse rod which have different section sizes are arranged so that the detached transverse rod can be easily arranged in an inner cavity of the hollow ladder column B and the hollow ladder column B can be arranged in an inner cavity of the hollow ladder column A; and the storage space is saved and the portable type combined ladder is convenient to carry, has a simple structure, is convenient to operate and is economical and practical.
Portable type combined ladder
MIAO SIZHONG (author) / XIE HUAIBEI (author) / TAO GAOQUN (author) / DENG CHAOQUN (author) / GAO KE (author) / LIU CONGWU (author)
2015-07-08
Patent
Electronic Resource
English
IPC:
E06C
LADDERS
,
Leitern