Rainy-day alarm

Abstract

The invention discloses a rainy-day alarm. The rainy-day alarm comprises a fixing plate, wherein a rainwater detecting device is arranged on the fixing plate, successively connected with a dry batteryand a buzzer to form a loop, and comprises an open box in which absorbing materials and solid electrolyte substances easily dissolved in water are arranged, rainwater is absorbed through absorbent cotton, and an electrolyte is dissolved in water to make the rainwater detecting device conduct, therefore, the buzzer is electrified to work.

Description

[technical field] [0001] The invention relates to a rain alarm. [Background technique] [0002] In daily life, we often need to dry clothes and quilts to prevent moisture and mildew, but when it rains outside, we cannot know in time, which often leads to the clothes and quilts getting wet again and need to be washed again, which increases the workload , On the other hand, it may be blown away by the strong wind accompanying the rain, causing losses. [Content of the invention] [0003] The present invention overcomes the disadvantages of the above technologies, and provides a rain alarm, which absorbs rainwater through absorbent cotton, dissolves electrolyte in water, makes the rainwater detection device conduct electricity, and makes the buzzer work with electricity. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A kind of rain alarm, comprising a fixed plate 100, the fixed plate 100 is provided with a rain ...

AI Technical Summary

Problems solved by technology

[0002] In daily life, we often need to dry clothes and quilts to prevent moisture and mildew, but when it rains outside, we cannot know in time, which often leads to the clothes and quilts getting wet again and need to be washed again, which increases the workload , on the other hand, it may be blown away by the strong wind accompanying the rain, causing losses

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