The structure of a folding umbrella generally consists of three parts: handle, rib and umbrella cover. The umbrella handle is the backbone of the folding umbrella, which supports the whole umbrella and is mainly made of metal and other materials. The ribs support the whole canopy, which can be folded and unfolded, making it easy to carry.

Umbrella cover is the most important part of folding umbrella, which bears the responsibility of sheltering from rain. Materials include plastic cloth, tarpaulin, silk and durable nylon cloth.

Extended data:

An automatic umbrella capable of automatically opening and closing an umbrella: a compression spring sleeve is sleeved outside a compression spring used for opening the umbrella, and the compression spring sleeve is sleeved in a skeleton connecting sleeve, and the skeleton connecting sleeve is provided with radial clips, both ends of which are wedge-shaped and can slide left and right; A spring bolt is arranged at the outer side of the skeleton connecting sleeve, and a sliding multi-head spiral inner and outer sleeve is arranged above the umbrella handle.

There are matching multi-thread between them. When the umbrella is closed, the rotating and sliding outer sleeve and inner sleeve can extend out to compress the umbrella opening compression spring, and the clamp on the skeleton joint can position the umbrella opening compression spring.

The spring umbrella retracting device can be an umbrella retracting compression spring between the umbrella top frame connector and the umbrella opening frame connector. When the umbrella-opening compression spring is pressed, the umbrella-opening compression spring can be opened and compressed, the spring bolt is pulled down, the clip slides out, the umbrella-opening compression spring closes the umbrella, and the sliding spiral sleeve is rotated to compress the umbrella-opening compression spring and prepare to open the umbrella.