Emergent clamping and pulling mechanism for narrow-aperture wellhole

Abstract

The invention relate to the technical field of rescue, in particular to an emergent clamping and pulling mechanism for a narrow-aperture wellhole. The emergent clamping and pulling mechanism consists of clamp hooks, handles, a sleeve pipe, a transmission rod, a transmission pipe, a sleeve, a spring, a tightening screw, a grab handle, a movable groove and a movable handle, wherein the clamp handles are arc-shaped metal sheets; the clamp hooks which are integrated with the clamp handles are arranged at the lower ends of the clamp handles; the upper ends of a pair of clamp handles which are bentin the opposite direction are welded with the lower end of the transmission rod into a whole; the clamp hooks at the lower ends of the two clamp handles are arranged oppositely; the transmission is positioned in the sleeve pipe and is in movable fit with the sleeve pipe; the transmission pipe is arranged at the upper end of the sleeve pipe; the first half section of the transmission pipe is positioned in the sleeve and is in assembly movable fit with the sleeve; and the spring is sleeved on the transmission rod. Compared with the conventional deep well rescue mode, the emergent clamping and pulling mechanism has the advantages that: the success rate of the rescue is improved greatly; and the safety of rescuers is also ensured.

Description

technical field [0001] The invention relates to the technical field of rescue, in particular to an emergency clamping mechanism for a narrow-caliber well. Background technique [0002] There are often various wells around buildings, roads, and green areas. Some wells are more than ten meters deep, but less than half a meter in diameter. Therefore, in recent years, there have often been accidents in which children accidentally fall into deep wells around buildings. In such a situation, the most common rescue method for firefighters is to pick a small and thin firefighter, tie him up with a long rope, hang his head down into the well, and rely on the hands of the firefighter to lift the person at the bottom of the well. Tie it up, then pull up the long rope, and drag the person out of the well. This method is very dangerous for firefighters. With their heads facing down, the blood vessels in the head are under high pressure for a long time, which may easily cause the blood v...

AI Technical Summary

Problems solved by technology

This method is very dangerous for firefighters. With their heads facing down, the blood vessels in the head are under high pressure for a long time, which may easily cause the blood vessels in the head to rupture. At the same time, because carbon dioxide is denser than air, it is also very dangerous to It is easy to cause hypoxia for rescuers

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