A multifunctional tire lifting device has been designed to directly act on the tires and achieve the functions of lifting and moving cars, as the large number of cars requires high convenience in maintenance and repair. This device can simplify the operation process of tire replacement, wheel hub maintenance, tire balance adjustment, and inflation. By lifting the tires to the appropriate height, it enhances the convenience and safety of car maintenance. This design not only meets the basic functional requirements of car lifting, but also achieves significant improvements in user experience and work efficiency.
With the implementation of the carbon peak and carbon neutralization plan, liquefied natural gas (LNG) is increasingly used in production and life, especially as a vehicle fuel. The LNG dispenser gun is a component that directly connects the dispenser and the vehicle to add liquid to the LNG vehicle. Based on the study of liquid filling technology and the analysis of the harm of liquid filling leakage, this paper proposes a design scheme of LNG manual liquid filling gun, which solves the problems of material selection and sealing design by checking the driving force.
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