Double-layer wind-proof umbrella

Abstract

The invention discloses a double-layer wind-proof umbrella. The double-layer wind-proof umbrella comprises a middle rod with an upper nest and a lower nest, multiple groups of umbrella rib assemblies for pivoting the upper nest and the lower nest, upper umbrella cloth and lower umbrella cloth, wherein each group of umbrella rib assembly is provided with a control valve; in each group of umbrella rib assembly, the inner end of an internal main rib is pivoted with the upper nest; the outer end of the internal main rib is pivoted with the inner side of an internal connector; the outer end of the internal connector is fixedly connected with the inner end of a middle main rib; the outer end of the middle main rib is pivoted with the middle part of an external connector; the outer end of the external connector is fixedly connected with the inner end of an external main rib; the inner end of a branch rib is pivoted with the lower nest; the outer end of the branch rib is pivoted with the middle part of the internal main rib; the outer end of a connecting rib is pivoted with the inner end of the external connector; in the control valve, a buckling component is fixed on the outer end part of the internal main rib and is pivoted with the inner end of a wind-proof rib end cap; the outer end of the wind-proof rib end cap is fixedly connected with the inner end of an elastic wind-proof rib; the middle part of the wind-proof rib end cap is pivoted with the inner end of the connecting rib; the edge of the outer side of the upper umbrella cloth is tied to the outer end of the wind-proof rib; the edge of the inner side of the lower umbrella cloth is tied to the part near the external connector of the connecting rib; the edge part of the outer side of the upper umbrella cloth covers the inner edge of the lower umbrella cloth; and the middle part of the upper umbrella cloth is tied to the outer end part of the internal main rib.

Description

technical field [0001] The present invention relates to an umbrella. Background technique [0002] A common umbrella includes a middle stick with a fixed upper nest and a sliding lower nest, multiple sets of rib assemblies (each set of rib assemblies is pivotally connected to a set of slots in the upper and lower nests of the middle stick), Umbrella cloth tied to the outside of each umbrella rib assembly. In windy weather, when the airflow blows from the inside of the umbrella cloth, the umbrella cloth and umbrella ribs will be folded outwards (commonly known as umbrella blooming), and in severe cases, the umbrella bones will be broken. For this reason, the industry proposes to divide the umbrella cloth into a polygonal upper umbrella cloth located in the center of the outer side of each umbrella rib assembly and a ring-shaped lower umbrella cloth located on the outer periphery of each umbrella rib assembly. The lower side of the upper umbrella cloth covers the lower The u...

AI Technical Summary

Problems solved by technology

[0003] But this multi-fold windproof umbrella also has following shortcoming: 1, the upper umbrella cloth 5 is positioned at the part between last nest 11 and adapter 24 and can't get the making of umbrella rib and is in suspended state, easily collapses and accumulates water

2. The air inlet 40 between the base 41 of each control valve 4 and the adapter 24 is too small, and the opening 0 between the upper umbrella cloth 5 and the lower umbrella cloth 3 is too small to meet the needs of typhoon and other strong wind weather.

3. If there is no net 3a, the folded part of the umbrella cloth 3 in the radial direction will be drooping when the umbrella is retracted, causing the inner edge of the lower umbrella cloth 3 and the outer edge 52 of the upper umbrella cloth 5 to be entangled with each other, hindering the opening and closing smoothness of the umbrella

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