Synchronous load-limiting device of lifter

• Main Authors: LIU GUANGHUA, ZHENG JINGDENG, LIN HUOMING
• Format: Patent
• Language: Chinese; English
• Published: 20.08.2008
• Subjects: ALARM SYSTEMS; BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; FIXED CONSTRUCTIONS; FORMS; HANDLING BUILDING MATERIALS ON THE SITE; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; ORDER TELEGRAPHS; PHYSICS; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING

The utility model relates to a synchronous load limiter of an erector, which is characterized in that: the synchronous load limiter comprises a ring body of a proving ring connected between an electric hoist and a frame body of the erector, a pair of elastic sheets arranged in the ring body, an underload detection inching switch and an overload detection inching switch which are arranged at a left side and a right side of an elastic sheet, an underload adjusting screw rod and an overload adjusting screw rod which are arranged at corresponding positions of the other elastic sheet and an underload and overload warning circuit which is controlled by the underload detection inching switch and the overload detection inching switch. The synchronous load limiter can not only realize synchronization of the erector body when an attached lift scaffold rises or falls, but also effectively control load of the lift scaffold. The synchronous load limiter has simple circuit, convenient installation and high reliability and