Bathroom towel automatic air dryer

When washing your face every day, we often find that the towels hanging in the bathroom are always wet, and sometimes when the weather is bad, things like glue will ooze from the towels. These things are slippery and uncomfortable to wash your face. Later, we found that if the towel was hung outside the bathroom in a sunny or well-ventilated place after each use, the above phenomenon would not occur, but it was inconvenient. Can you design an instrument that can quickly dry towels without taking them out of the bathroom? After repeated research, with the guidance and help of the teacher, we finally designed and produced the "bathroom towel automatic air dryer".

Making tools: funnel, anemometer, pipe, scissors.

Manufacturing method: 1. First, we installed a big funnel on the anemometer. Second, we use pipes and hoses to connect the funnel with the stainless steel pipe for hanging towels. Thirdly, there are many small holes drilled in the stainless steel pipe. Because the "instrument" is installed in a ventilated place outside the bathroom, the anemometer can rotate with the wind, so no matter which direction the wind blows, the funnel mouth can always aim at the wind direction to ensure that enough wind enters the funnel. After the wind enters the funnel, it blows along the pipeline to the stainless steel pipe for hanging towels in the bathroom, and then blows out from the small holes in the stainless steel pipe. Because every hole is facing the towel, the towel will soon dry.

Abstract: The automatic towel dryer in the bathroom accelerates evaporation by accelerating the wind speed on the surface of the object. So as to achieve the effect of automatic air drying. Keywords: automatic air drying,

Two: energy-saving street lamps

The Chinese nation has a fine tradition of thrift, and the people of China have maintained this good style since ancient times. This feature is also reflected in productive labor and daily life. We should always try our best to do everything well in the most economical way. It is because of this good idea that we know how to save energy. The energy problem is of extraordinary significance to a populous country like China. With the development of economy and the large-scale exploitation of resources, the problem of energy shortage has become more prominent, which has greatly affected the modernization of China. Up to now, our country still advocates thrift. In the major construction of Olympic venues, the state put forward the slogan of "running the Olympic Games frugally" according to the actual needs. On the 55th anniversary of the National Day this year, the slogan "Save the National Day" was put forward one after another. Our country is proceeding from the overall situation and achieving the diligent style from the aspect of energy conservation. Saving energy can reduce expenses, promote economic growth and protect the natural environment, which is also a prerequisite for taking the road of "sustainable development" and for our future generations.

At night in the city, there are dense and neat street lamps on both sides of the road, which looks like a dragon flying. Although this is a beautiful scenery, many times the lights of these street lamps are wasted because the road is empty for a large part of the time, especially in areas with underdeveloped economy and transportation. The huge waste of power resources has brought negative effects on the economy of these areas, which is not beneficial, but harmful. Then, is there an automatic control device that is convenient for pedestrians and vehicles to pass at night and saves energy?

Saving energy is actually to reduce energy loss as much as possible. On remote roads, the traffic flow is very small, and turning on street lamps for a long time, whether there are cars, no cars, pedestrians or no pedestrians, will cause great waste of energy. You shouldn't turn on all the road lights even if a car passes by. You should only turn on the street lights within the effective range of the vehicle, otherwise it will cause great losses! So do pedestrians walking on the road. Only turn on the street lamps within the corresponding range for pedestrians to meet the lighting needs. This problem can be compared with the common voice switch now. As long as someone walks in the stairwell and makes a sound, the light will light up when the vibration generated by the sound is transmitted to the voice control switch, and the light will only light up within the pedestrian's walking range and will not light up for a long time. From this, we can know that when vehicles and pedestrians pass on the expressway, don't they exert pressure on the pavement? If there is an inductor that can automatically control the switch under the pressure and control the lights on and off within the corresponding range, the purpose of energy saving will be achieved.

Then this sensor can not be controlled by air vibration generated by sound, but by road vibration generated by the impact and pressure of vehicles and pedestrians on the road. These two kinds of vibrations are different, otherwise it is a mistake, which may be the barking of animals. The noise outside the road will turn on the lights, and it will also fail to achieve the purpose of energy saving. If the noise from vehicles and pedestrians is very small, the lights will not light up? That's useless. It doesn't work at all. The driving of cars and the walking of pedestrians will naturally produce impact and pressure on the ground, which will make the road surface vibrate, so that the road surface vibration can be used to control the opening and closing of street lamps. If there is such a device, it can be installed in the light box of a street lamp, and each device is connected to the road surface with a metal bar. When the road surface is impacted and vibrated by pressure, the corresponding street lamps will light up, and the lights will light up where there are vehicles or pedestrians, and the vibration will stop, and the lights will automatically go out within a certain time limit. This device uses vibration and pressure to control street lamps, which can play a very good role in energy saving. Of course, in order to reduce the number of installed devices, such a device can control multiple street lamps, and multiple devices are connected in parallel in a circuit, that is, one device is installed at intervals, and then these devices are connected to the corresponding street lamps through wires. We might as well name it "vibration sensor" first. Let's first look at the working principle of the "vibration sensor": First, the metal bar is used to sense whether the road surface vibrates. When a car or pedestrian passes a certain road section and exerts pressure on the road surface to generate vibration, the metal bar transmits the vibration to the "vibration sensor", which is stimulated by the vibration and commands several street lamps it controls to turn on the switch. Vehicles and pedestrians continue to pass the next road section, and the "vibration sensor" of the next road section is also stimulated by vibration, which also lights up the corresponding street lamps, and so on. At the same time, the "vibration sensor" on the road section after vehicles and pedestrians passed by turned off the switch because it did not continue to receive the vibration information transmitted to it by the metal strip, so that the corresponding street lamps did not continue to emit light. But this kind of "vibration sensor" requires high sensitivity and can also identify the vibration source. For example, under special circumstances, lightning weather or high-decibel noise generated by factories will make the air vibrate violently, and it will also be transmitted to the "vibration sensor" through metal bars. The "vibration sensor" mistakenly thinks that the vibration comes from the road surface, which makes the street lamp shine.

Well, as long as this "vibration sensor" is installed on the road with street lights, it doesn't need a lot of manpower to control the power supply, and all the work will be automatically controlled by the machine. We can imagine that there are cars or pedestrians passing by on the road, and the scene of street lamps flashing and going out for the second time is dazzling and overwhelming. Isn't evening a unique and beautiful scenery? At the same time of convenient transportation, the biggest advantage is that it saves energy greatly.

This kind of "vibration sensor" is designed to save energy. I hope this device can be applied to practice and play a great role. While developing the economy, we must not ignore the importance of energy conservation, save energy and take the road of sustainable development, which has become the common sense of mankind.

One is long, the other is short. Cut or add roses by yourself, depending on what you need.