Lifting device, safety door, safety door system and control method of lifting device

• Main Author: KANG JINYUN
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2019
• Subjects: BODY DETAILS OR KINDS OF RAILWAY VEHICLES; BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS ORWINDOWS; CHECKS FOR WINGS; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; KEYS; LADDERS; LOCKS; PERFORMING OPERATIONS; RAILWAY SYSTEMS; RAILWAYS; SAFES; TRANSPORTING; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

The invention discloses a lifting device, a safety door, a safety door system and a control method of the lifting device. The lifting device comprise supporting columns, lifters, a power device, firstguiding rails, a plurality of first sliding blocks and a counter weight unit; the supporting columns are used for supporting all parts, the lifters are internally provided with cavities and slidablymounted on the supporting columns, the power device drives the lifter to slide up and down, the first guiding rails are mounted in the cavities of the lifters, the multiple first sliding blocks are mounted on the first guiding rails and can slide up and down along the first guiding rails, and the first sliding blocks are fixedly connected with the ends of corresponding protective fences; the counter weight unit comprises fixed pulleys, counter weight blocks and ropes, the fixed pulleys are fixed to the upper parts of the cavities of the lifters, the ropes pass through the fixed pulleys, one ends of the ropes are connec