Safety pre-warning device for crane operation

Abstract

The invention discloses a safety pre-warning device for crane operation and relates to the technical field of crane devices. The safety pre-warning device comprises a single chip microcomputer which is provided with an input module and an output module, wherein the input module is connected with a rod head distance-measuring sensor as well as an inductive sensor for sensing a human body under a jib; and the output module is connected with a voice module which is connected with a loud speaker. The safety pre-warning device for the crane operation has the advantages of simple structure, good warning ability for the safety of persons and goods under the jib, nice working accuracy and safety, labor and time conservation, capability of increasing work efficiency, and the like.

Description

technical field [0001] The invention relates to the technical field of crane equipment. Background technique [0002] Most of the current cranes have the functions of hook limit, automatic stop when heavy objects are overloaded, and alarm for vehicle unevenness. In the past high-altitude operations, in order to prevent the boom from touching objects such as the tower body, cross arms and wires, at least 3 people were required to observe and command from different angles. The crane operator had to operate the boom and pay attention to command from all angles Especially when the operator is close to the operation point, the operator is even more nervous, and can only operate bit by bit, and the speed is very slow, which not only affects the speed of hoisting operation, but also the operator will be distracted due to fatigue for a long time, which will bring inconvenience safety factors. This situation often occurs during hoisting operations. During long-term hoisting operati...

AI Technical Summary

Problems solved by technology

[0002] Most of the current cranes have the functions of hook limit, heavy object overload automatic shutdown, and vehicle unevenness alarm. These functions are completed by single-chip microcomputers, but it is still blank for the distance measurement of the person standing under the arm and the rod head.

In the past high-altitude operations, in order to prevent the boom from touching objects such as the tower body, cross arms and wires, at least 3 people were required to observe and command from different angles. The crane operator had to operate the boom and pay attention to command from all angles Especially when the operator is close to the operation point, the operator is even more nervous, and can only operate bit by bit, and the speed is very slow, which not only affects the speed of hoisting operation, but also the operator will be distracted due to fatigue for a long time, which will bring inconvenience safety factors

This situation often occurs during hoisting operations. During long-term hoisting operations, the on-site staff generally pay more attention to the hoisting objects, and often do not pay attention to their own positions. Sometimes they may stand under the big arm unconsciously. pose a security risk

At the same time, the hoisting work environment is mostly in the field, the car is noisy, the sound of the car horn is monotonous, and the operator shouts in the operating room and the people outside cannot hear it. In this way, the operator must often enter and exit the operating room, which brings a lot of inconvenience to the work.

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