A rotatable pull wire type safety protection hook

Abstract

The invention provides a rotatable pull-wire type safety protection hook, which belongs to the field of coal mine safety protection. The rotatable pull wire type safety protection hook includes a control rod, a hook, a gear, a locking sleeve, a locking pin, a first control line and a second control line, and the first control part and the second control part are arranged at the lower end of the control bar. Driven by the first control part, the hook can be controlled to swing or lock relative to the control rod under the action of an external force; driven by the second control part, the locking pin can extend or retract relative to the locking sleeve, and the locking sleeve can Swings or locks relative to the hook. The invention has simple structure, low cost input, and is suitable for popularization and use; instead of the traditional hooking method of the protective chain, the operator only needs to stand on the ground, and can quickly complete the hooking operation of the other end of the protective chain through the control rod and the control part. It makes the hook operation easier, and avoids the risk of falling from a high altitude during the hooking operation, and the hooking position can be easily moved after the hooking.

Description

technical field [0001] The invention relates to the field of coal mine safety protection, in particular to a rotatable pull-wire type safety protection hook. Background technique [0002] The dominant position of coal in my country's primary energy structure will not be shaken in the next 30 years. In order to achieve the purpose of safe and efficient mining, many mines are equipped with large-section mining tunnels, and the height of the tunnels generally exceeds 3m, which also brings many safety problems. For example, in the process of installing the column of the column drilling rig, the single column and other equipment, there are safety accidents such as equipment dumping and injury, etc. In order to reduce the risk and damage of such safety accidents, protective chains are generally used for protection. One end of the protective chain is connected to the equipment, and the other end of the protective chain needs to be hooked to the beam and other positions by manpower....

AI Technical Summary

Problems solved by technology

When the other end of the protective chain is hooked, accidents such as falling from high altitudes often occur, the risk is high, the operation is cumbersome and difficult, and it is not easy to move after hooking

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