A wireless height alarm stop limit device

Abstract

A wireless stop limit device with a height warning function comprises an emitter, a height control switch, a control rod, a steel wire rope, a heavy hammer, a hoisting hook and signal receivers. The signal receivers comprise a 6-220 V power, a relay, a warning buzzer and a magnetic valve. A microswitch K1is installed in the height control switch and a K1 mode and a K2 mode are simultaneously set. The control rod provided with a spring is correspondingly arranged below an on-off key, the lower end of the control rod is connected with the heavy hammer with a through hole in one side, one end of the steel wire rope penetrates through the through hole of the heavy hammer, and the lower end of the steel wire rope is connected with the hoisting hook. The wireless stop limit device has the advantages that the wireless stop limit device can warn people of excessive winding of a winch in time and can control the winch to stop working immediately; the power supply method that batteries and capacitors are combined is adopted, so the service life of the device can be prolonged by more than ten times compared with that of an original product; the emitter and the batteries can be installed in a height on-off shell; address codes can be set before leaving the factory and also can be selected and paired on use spots, so the device is convenient to install and maintain; the receivers can control AC loads through the 220V AC power.

Description

technical field [0001] The invention relates to a lifting device, in particular to a wireless height alarm and stop limit device. Background technique [0002] At present, hoisting and hoisting devices installed on various cranes, cranes and mining machines often have lifting and over-rolling accidents during work. Once an accident occurs, huge losses will be caused, and even casualties will be caused. Aiming at such problems, there are currently some preventive measures, but the effect is not good. In addition, due to the single-chip microcomputer used in some devices, the single-chip microcomputer has a sleep current consumption, which leads to a large power consumption of the device, and requires frequent replacement of batteries or parallel photovoltaic cells, which makes operation and maintenance more cumbersome. Therefore, it is particularly important to provide a more effective, energy-saving, and low-cost overwind alarm and stop device. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0002] At present, hoisting and hoisting devices installed on various cranes, cranes and mining machines often have lifting and over-rolling accidents during work. Once an accident occurs, it will cause huge losses and even cause casualties.

Aiming at such problems, there are currently some preventive measures, but the effect is not good

In addition, due to the single-chip microcomputer used in some devices, the single-chip microcomputer has a sleep current consumption, resulting in a large power consumption of the device, requiring frequent replacement of batteries or parallel photovoltaic cells, and more cumbersome operation and maintenance.

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