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A convertible single and double umbrella

A two-person umbrella and umbrella handle technology, applied in the field of textile fabrics, can solve the problems of not being able to ensure that everyone is not exposed to the sun or rain, single function, discomfort, etc., and achieve the effect of simple structure, enlarged effective area, and convenient use

Active Publication Date: 2020-12-22
诸暨市昱锦电子商务商行
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Umbrella is a tool that provides a cool environment or shelters showers and snow. There are many types of umbrellas that people use now, but most of them have single functions. After the umbrella is opened, the size of the umbrella surface is fixed. There is no guarantee that everyone will not be exposed to the sun or rain when a single person or multiple people hold the same umbrella. It is often seen that when two people hold an umbrella together on the road, one person's shoulders are exposed outside the umbrella and get wet by the rain , and when people try to avoid getting wet, they will try their best to lean on the center of the umbrella pole, which will lead to very crowded and easy to cause people's discomfort

Method used

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  • A convertible single and double umbrella
  • A convertible single and double umbrella
  • A convertible single and double umbrella

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Weigh 13.1g (0.05mol) of dibromoneopentyl glycol, 10.1g (0.1mol) of triethylamine, and 100mL of acetone into a three-necked flask, slowly add 23.7g of (0.1mol) diphenylphosphinyl chloride, continue to react for 4 hours after the dropwise addition. After the reaction, the triethylamine salt was removed by filtration, the filtrate was distilled off under reduced pressure and dichloromethane was added, and washed three times with saturated saline and deionized water successively, and the organic phase was dried with anhydrous magnesium sulfate for 4 hours, then reduced The solvent was distilled off under reduced pressure to obtain diphenylphosphine dibromoneopentyl glycol ester. 1 H NMR (CDCl 3 ): 3.27(s,2H), 4.15(s,2H), 7.33(s,5H).

Embodiment 2

[0046] Weigh 8.65g (0.05mol) of dichloroneopentyl glycol, 10.1g (0.1mol) of triethylamine, and 100mL of acetone into a three-necked flask, slowly add 23.7g of (0.1mol) diphenylphosphinyl chloride, continue to react for 4 hours after the dropwise addition. After the reaction, the triethylamine salt was removed by filtration, the filtrate was distilled off under reduced pressure and dichloromethane was added, and washed three times with saturated saline and deionized water successively, and the organic phase was dried with anhydrous magnesium sulfate for 4 hours, then reduced The solvent was distilled off under high pressure to obtain diphenylphosphine dichloroneopentyl glycol ester. 1 H NMR (CDCl 3 ): 3.32(s,2H), 4.15(s,2H), 7.33(s,5H).

Embodiment 3

[0048] Weigh 7.75g (0.05mol) of 3-bromo-1,2-propanediol, 10.1g (0.1mol) of triethylamine, and 100mL of acetone into a three-necked flask, slowly dropwise add 23.7g (0.1mol) of diphenylphosphinyl chloride, continue to react for 4 hours after the dropwise addition. After the reaction, the triethylamine salt was removed by filtration, the filtrate was distilled off under reduced pressure and dichloromethane was added, and washed three times with saturated saline and deionized water successively, and the organic phase was dried with anhydrous magnesium sulfate for 4 hours, then reduced The solvent was distilled off under reduced pressure to obtain diphenylphosphinate 3-bromo-1,2-propanediol ester. 1 H NMR (CDCl 3 ): 3.49-3.82 (m, 2H), 4.32-4.61 (m, 2H), 7.33 (s, 5H).

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Abstract

The invention discloses a convertible single- and double-person umbrella, which comprises an umbrella crown, an umbrella handle, an umbrella surface, several extension rod groups and several umbrella ribs, the umbrella crown is arranged on one end of the umbrella handle, and several said extension One end of the rod group is connected to the outer peripheral wall of the umbrella crown, and several of the expansion rod groups are distributed in a circle, and the ends away from the umbrella crown are all inclined to the umbrella handle, and the several umbrella ribs are respectively hinged on several expansion rods On the end of the rod group away from the umbrella crown, the umbrella surface includes an unfolded surface and a folded surface. On one side of the handle, the expansion rod group is used to expand the folded surface to increase the area of ​​the umbrella surface. The expansion rod group includes an outer rod, an inner rod, a first spring and a fixing piece. The beneficial effect of the present invention is that the umbrella can The size of the umbrella surface is adjustable, suitable for single or multiple use.

Description

technical field [0001] The invention relates to the technical field of textile fabrics, and more specifically relates to a convertible single- and double-person umbrella. Background technique [0002] Umbrella is a tool that provides a cool environment or shelters showers and snow. There are many types of umbrellas that people use now, but most of them have single functions. After the umbrella is opened, the size of the umbrella surface is fixed. There is no guarantee that everyone will not be exposed to the sun or rain when a single person or multiple people hold the same umbrella. It is often seen that when two people hold an umbrella together on the road, one person's shoulders are exposed outside the umbrella and get wet by the rain , and when people try their best to avoid getting wet, they will try their best to lean on the center of the umbrella pole, which will cause very crowded and easily cause people's discomfort. Contents of the invention [0003] Aiming at th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A45B25/18A45B25/02A45B25/00
CPCA45B25/00A45B25/02A45B25/18A45B2025/003
Inventor 姚自力彭樟林姚卫华黄巧东龚震鸿
Owner 诸暨市昱锦电子商务商行
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