Why is the zipper in the middle of a hardlift suitcase?

The hard pull suitcase zipper in the middle can increase the strength of the zipper, reduce the pulling resistance and achieve the safety and anti-theft function of the suitcase. The zipper of the hard trolley case is in the middle, so that the frame rod structure acts as a reinforcement in the middle part of the trolley case.

A trolley case refers to a suitcase with trolleys and rollers. It is widely used because of its ease of use. At the same time, the trolley box is also equipped with a trolley, which is divided into single-tube trolleys and double-tube trolleys. The tubes of the trolleys are also divided into square tubes and round tubes to facilitate dragging when walking, greatly reducing the burden.

Maintenance knowledge

When traveling, a trolley case is a must-have item. Many friends complain about the quality of their trolley cases when problems arise soon after they are used. Too bad. In fact, otherwise, the damage is not caused by the poor quality of the trolley case. If you don't know how to maintain the trolley case, it is also a major cause of damage. So we need to know how to maintain the trolley case so that our beloved trolley case can last longer.

When using a trolley case, be careful to avoid high temperatures, strong acid and alkali environments, and high-pressure environments will also cause your trolley case to deform. Avoid scratches by sharp objects such as knives. No matter how hard the trolley case is, it cannot compete with knives.

You can use cold water when cleaning, but please do not iron as it will burn the skin. When using the trolley case, avoid being in a humid environment for a long time, as this will cause the trolley case to lose its original toughness. Regularly clean the metal accessories of the trolley case with a rag, which can effectively prevent fading.

Try not to let the trolley case walk on some uneven roads, as this will cause considerable damage to the wheels of your trolley case. When pulling your trolley case, pay attention to using slight force, not too much, so that it can be smoother.