Safety gate device for bridge box lift

Abstract

The invention relates to a safety gate device of a lift car type lifter. The safety gate device comprises rotating shafts, sliding touch blocks, triggering plates and gate plates. The spacing between two first stand columns in the lift car type lifter is a channel for conveying goods to a lift car, wherein the opposite surfaces of the two first stand columns are respectively in rotating connection with one rotating shaft, the two rotating shafts are parallel to each other and both perpendicular to the stand columns; the ends, facing the lift car, of both the rotating shafts are respectively and fixedly connected with one sliding touch block, and the other ends of the rotating shafts are respectively and fixedly connected with one gate plate; the rotation of the rotating shafts can make the channel be in a open or closed state through the two gate plates; the two triggering plates are respectively arranged on the position, capable of triggering rotation of the sliding touch blocks to drive the rotating shafts to rotate, of one side face of the lift car. According to the safety gate device of the lift car type lifter, hidden safety hazards caused by abnormity of a photoelectrical detecting system can be avoided.

Description

technical field [0001] The invention relates to a bridge box lift, in particular to a safety gate device of the bridge box lift. Background technique [0002] The bridge box elevator is a kind of cargo hoist with a chain plate conveyor. Its working principle is: when the bridge box in the bridge box elevator reaches the floor of the loading and unloading platform, the position sensor switch of the floor will send a signal to the electric control system. Send the signal that the bridge box is in place, and the electronic control system will immediately start the chain conveyor in the box elevator and the chain conveyor on the loading and unloading platform, and send the box goods waiting at the entrance and exit into the bridge box. Then the bridge box elevator will send the goods to the designated entry and exit floors. [0003] At present, there are two methods to prevent box-type goods from falling into the shaft of the bridge box-type elevator: (1) A gate controlled by a...

AI Technical Summary

Problems solved by technology

[0004] The above two methods have the function of protecting the goods from falling into the axle box elevator shaft in principle, but they are both based on the electrical control protection mode. Once the photoelectric detection switch and the electronic control system fail or malfunction, the consequences will be unimaginable.

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