What should I do if the Special Tricycle becomes loose?

What is the reason for the loosening of Special Tricycle and what should be done.

With the development of the online shopping industry, the logistics industry has also risen. Therefore, Special Tricycle used by couriers to deliver express delivery have become more and more common, so the usage rate of Special Tricycle has become higher and higher. So what is the reason for the looseness of Tricycle Motorcycle.
On the one hand, it is due to the looseness of the welding points of the Tricycle Motorcycle itself. Due to the displacement of the mechanical parts due to the bumps during driving, the welding points fell off. If you can go to a welding place to re-weld it when you find it, then the problem won't be big. But if you ignore it for a long time, you may need to replace it with a Special Tricycle, which is a waste of money and time.
On the other hand, during long-term use, the failure occurs due to the vibration of the Special Tricycle and the displacement of the machine parts. There are many reasons for this situation, the main ones being uneven road surfaces and excessive speed. When such problems occur, we only need to regularly check the fixing screws of the Tricycle Motorcycle, etc. If we encounter loose areas, we can reasonably solve such problems and fix them.