After the accident
On the construction of the slope on the expressway, the frontline worker Zhang hangs the net on the slope of the third grade, and the accidentally broken stones cause Zhang to step on the air, rolling down directly from the slope over 20 meters high, and sending it to the The hospital rescued, and the brain has generated local oscillations.
Accident analysis
1. Zhang is on a high-slope construction and does not use safety ropes to illegally perform network operations. This is the direct cause of the accident.
2. The project department did not purchase and distribute safety ropes to front-line employees before construction or construction on the same day. It did not provide education and training for construction personnel and safety technology, nor did it set up special safety management personnel to inspect and implement the safety ropes. A serious out of control condition is the indirect cause of an accident.
Lessons and Evaluation of Accidents
This case warns us that before the construction of high slopes, we must check the safety conditions of the frontline workers. We must begin construction again under safe conditions, do individual safety protection, and do a good job of safety education and training and safety technology in advance.
A ballcock (also balltap or float valve) is a mechanism or machine for filling water tanks, such as those found in flush toilets, while avoiding overflow and (in the event of low water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y RamÃrez, a Mexican priest and scientist, who described the device in 1790 in the Gaceta de Literatura Méxicana.[1] It consists of a valve connected to a hollow sealed float by means of a lever, mounted near the top of the tank. The float is often ball-shaped, hence the name ballcock. The valve is connected to the incoming water supply, and is opened and closed by the lever which has the float mounted on the end. When the water level rises, the float rises with it; once it rises to a pre-set level, the mechanism forces the lever to close the valve and shut off the water flow. This is an example of negative feedback and of proportional control.
Ball Cock, Brass Ball Bibcock, Ballcock Valve, Toilet Ballcock Valve
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsir-valve.com