The        high and low beds are both practical and decorative, but they are prone to rust and looseness due to the influence of material characteristics.Its useful life can be effectively extended by the following measures:

       First, do a good job of rust prevention.Newly purchased beds are recommended to be polished and deburred first, then sprayed with anti-rust paint for priming, and then covered with topcoat to form a protective layer.A small amount of oil can be dipped in a dry cloth to wipe the joint joints on a daily basis, which can lubricate the moving parts and isolate moisture.If the paint is found to be removed, the paint of the same color system should be applied in time to avoid local oxidation and diffusion.

Second, standardize usage habits.To avoid structural deformation caused by overloading and placing heavy objects, educate users to lightly open and close guardrails and climb ladders.Regularly check the tightness of the screws, and reinforce the frequently moving tenon structure with a wrench every six months to avoid the accumulation of micro-displacement due to vibration as a safety hazard.

       The third is to improve the placement environment.Keep away from humid areas as much as possible, and if the indoor humidity is high, place the dehumidification box or use the air conditioning dehumidification function.Avoid metal fatigue caused by direct sunlight, and install curtains to adjust the light intensity.Disable corrosive detergents when cleaning and use neutral detergents with a soft cloth instead.

       Fourth, seasonal maintenance.When changing seasons, check whether the welding points are cracked. Use sandpaper to grind the rusted areas before brushing the rust inhibitor.

       Through regular maintenance and correct use, the high and low beds can be kept stable in structure and look like new, and the longer the user is safely accompanied.