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At present, the existing power mechanical gasoline engine fire pump is prone to large vibration during operation. Due to the lack of protection structure, long-term vibration will shorten the service life of the fire pump. Meanwhile, the upper end of the fire pump body is usually not set up with a protective structure, which is easily damaged by the extrusion and impact of objects. Therefore, a new type of protection device is designed in this paper, which plays a protective role by setting a relevant absorber at the lower end of the fire pump body, and at the same time, a buffer pad is arranged at the upper end of the cover to have the effect of buffering and shock absorption. To this end, this device has the function of reducing the damage to the fire pump body caused by the impact of heavy objects, improving the performance of the existing fire pump, and prolonging its service life.

With the sudden outbreak and rapid spread of COVID-19, global economic development and social stability have been seriously affected. The virus mainly spreads infection among people on a large scale through the air. People are gradually focusing on how to use HVAC system, so that it can play a more efficient and positive role in epidemic prevention and control. Consequently, we designed an intelligent purification and disinfection apparatus for air-conditioning units. The apparatus integrates rapid virus detection and high-efficiency disinfection functions. It uses a modular design and different operating modes for different levels of epidemic periods. This apparatus is not only suitable for daily life, but also can meet the prevention and control requirements during the epidemic period, which takes the economy, energy saving, and environmental protection into account.