Fall prevention safety device for climbing person on tower crane

Abstract

The invention discloses a fall prevention safety device for climbing personnel on a tower crane. The fall prevention safety device comprises a braided rope; the braided rope is wound on a ratchet wheel clockwise; the ratchet wheel is fixed on a shell through a ratchet wheel shaft; a pawl is arranged at the lower end of the ratchet wheel; the ratchet wheel shaft is connected with an output shaft ofa motor; a protection ring is arranged at the lower end of the shell; the braided rope penetrates out of the shell through the protection ring; a hook is arranged at the tail end of the braided rope;a guide wheel is movably arranged at the lower end of the shell; a speed sensor is arranged on the guide wheel; and rope break protection devices are arranged at the lower end of the guide wheel at intervals. The fall prevention safety device is convenient to use and ingenious in design, when the person is in danger and quickly falls down, the braided rope is locked by the fall prevention safetydevice, and meanwhile, the fall prevention safety device has a rope break protection function, so that the effect of protecting the safety of the person is achieved.

Description

technical field [0001] The utility model relates to an anti-falling safety device, in particular to an anti-falling safety device for tower crane climbers. Background technique [0002] The slide rail type or grab rope type personnel anti-drop safety device used in the existing high-altitude operation has not been used on the tower crane. However, the traditional speed differential fall arrester can only be used at a height of less than 30 meters, which cannot meet the use requirements of tower cranes at a height of two to three hundred meters. At present, tower cranes generally go up and down the tower crane through the ladder in the middle of the standard section of the tower body. Once the hands and feet become slippery or the ladder cross bar breaks during the climbing process, the personnel's life will be in danger. Contents of the invention [0003] The object of the present invention is to solve the above problems, to provide a safety device for preventing falling ...

AI Technical Summary

Problems solved by technology

[0002] The slide rail type or grab rope type personnel anti-falling safety device used in the existing high-altitude operations has not been used on the tower crane

The traditional speed difference anti-drop device can only be used at a height of less than 30 meters, which cannot meet the needs of tower cranes at a height of two to three hundred meters.

At present, tower cranes generally go up and down the tower crane through the ladder in the middle of the standard section of the tower body. Once the hands and feet are loose or the ladder cross bar breaks during the climbing process, the personnel will be in danger.

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