Foldable cage ladder device for headframe

• Main Authors: ZHANG TAO, WANG DONGXUE, LIU CHUNYOU
• Format: Patent
• Language: English
• Published: 28.01.2015
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; LADDERS

The utility model relates to a foldable cage ladder device for a headframe. The foldable cage ladder device comprises a ladder, a foldable protection cage and a folding rack, wherein the foldable protection cage is connected with the ladder through fixing plates; one end of the folding rack is connected with a power device through a steel wire rope; the other end of the folding rack is connected with the foldable protection cage through another steel wire rope; the foldable protection cage comprises a pulley assembly I, upright posts, horizontal rings, connection longitudinal beams and the fixing plates; the folding rack comprises a rack body, a pulley assembly II, a connection beam and a pulley assembly III. Compared with the prior art, the foldable cage ladder device has the benefits that as the power device and the pulley mechanism are adopted for folding the protection cage, the structure is simple, the use is convenient, the folding and unfolding are flexible, safe and reliable, and the labor intensity of operating staff can be reduced effectively.