The invention discloses a resistance type crane safety device capable of preventing aslant pulling and hanging. The safety device comprises a guiding rod, a fixing rod and a horizontally arranged sliding rod. A long hole is formed in the middle of the sliding rod in the length direction of the sliding rod, and the bottom end of the guiding rod is connected into the long hole in a sliding mode; a sliding hole is formed in one end of the sliding rod, and the other end of the sliding rod is fixedly connected with a resistance changing disc; a connection wire is connected to the center of an inner resistance disc; the bottom of the fixing rod is bent and then stretches to the position below the inner resistance disc, the bottom end of the fixing rod is bent upwards and then is provided with a big-end-down conical portion, a sliding contact is formed at the tip end of the conical portion, and the resistance changing disc is supported by the sliding contact in a sliding mode. When a hanging hook or other lifting appliances are located at normal hoisting positions, the center of the resistance changing disc makes contact with the sliding contact. The resistance type crane safety device is simple in structure and convenient to manufacture, mount and use; the safety device additionally mounted on an existing lifting device can prevent the aslant pulling and hanging phenomenon, and safe operation of a crane is guaranteed.
Resistance type crane safety device capable of preventing aslant pulling and hanging
2016-01-20
Patent
Electronic Resource
English
IPC: | B66C Krane , CRANES |
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