Students who are interested in creating inventions should get some inspiration after reading these works. I hope everyone will pay attention to two points in their own design: First, avoid repeating the ideas that others have already introduced; The second is to see if the problems you encounter are often encountered by others, which will determine whether your invention is worth popularizing.
We look forward to seeing your new invention!
Steel ball paperweight
Paperweight is a necessary stationery on the desk. Its main uses are: pressing the paper on the desk to avoid being blown away by the wind, preventing the open book from closing, and so on. In the past, people used stones, metals, wood and other materials to make solid paperweights, but a Japanese inventor Junko Terada, 1 1, designed a very creative and novel paperweight. She made a paperweight by putting several steel balls in a big spring installed on the base. This paperweight can not only press books and paper, but also has the function of a temporary paper clip-just insert the paper that needs attention between two steel balls.
Magnetic blade circuit breaker
We once introduced the story of Japanese printer Liangxiong Okada inventing the broken knife. This kind of blade, which can be broken with a blunt section and kept sharp all the time, has been popularized all over the world. However, every time a blunt blade is broken, it makes people sweat. Even if it is broken with pliers, the broken blade may fly out, which is very unsafe. To this end, a small inventor abroad designed a special blade breaker, which was placed on the blade, just revealing the nick that needed to be broken; If you break it hard, the broken blade will definitely not fly out, because there is a piece of magnetic steel above and below the inside of the broken blade, and the broken blade will be sucked in.
Safety art knife
This is another small invention about art knife. Friends who like DIY often use sharp art knives, so the risk of being scratched by knives will be a little more. The design of Japanese middle school student Ashara Hiroyuki can increase your sense of security. He made a plastic guard ring, and the art knife just passed through the hole of the guard ring and stuck it firmly, just like the hand guard of a weapon sword. Therefore, when using the art knife, the finger is blocked by the retainer and will not slide to the front edge, which plays an effective protection role.
Silent pencil box
In class, the silence in the classroom is often suddenly broken with a bang-a classmate must have accidentally dropped the pencil box on the ground. If the silent pencil case I invented is popularized, this disappointing scene will not reappear.
The four corners of the silent pencil case are inlaid with rubber, which can not only increase the friction force, but also prevent it from slipping, even if it falls to the ground, it will not make a loud noise.
The simplest compass
Compasses are commonly used stationery, and there are countless small inventors who have designed novel compasses, and many of them have been introduced in Hands-on. However, this "simplest compass" invented by Japanese middle school student keiji fukuda still gives people a sense of freshness. It only consists of three small parts made of metal sheet (or plastic). The two sleeve parts fixed by screws are respectively inserted into the pencil and clamped, and the separation angle of the pencil can be adjusted; The front end of one of the pencils is covered with a sharp metal pen cover, which becomes a compass. When you don't need to draw, you can take out two pencils to write.
Ruler+triangle+compass
Rulers, triangles and compasses are necessary teaching AIDS for math teachers. In class, the teacher draws geometric figures on the blackboard, using a ruler for a while and changing triangles or compasses for a while, in a hurry. I think these three teaching AIDS are all made of wood and have many similarities. Why can't we design a "three-in-one" teaching aid with the functions of ruler, triangle and compass?
After many experiments and improvements, this "three-in-one" teaching aid was finally made. It consists of three pieces of wood. When in use, three wooden strips form a straight strip through the ferrule and the fixing screw. Connect three pieces of wood end to end to form a triangle; According to the combination of Figure A, it is a compass. Most teachers who have tried this teaching aid are very satisfied.
Automatic rubber
When we write and draw with a pencil, we often erase it with an eraser and make corrections. When writing with an eraser, you should use clever force. You won't clean it if you use light power. If you use too much force, you will often scratch the paper, which is not easy to master. So I designed an automatic eraser, using a small motor to drive the cylindrical eraser to rotate, as long as the rotating eraser gently touches the place to be wiped. The automatic eraser is easy to control and will not scratch the paper.
Pencil with note paper
When people need to take notes, record phone numbers or leave temporary messages, they often have no pens or can't find paper. Therefore, Masasuke Haruda, a junior high school student in Japan, invented a mechanical pencil with post-it notes, which were rolled up with adhesive tape and hidden in a pen container. If you want to write a note, take out a piece of paper from the pen, and when it is pulled to a suitable length, cut it off with the plastic sawtooth at the exit, and you can write.
Vest bag
Nowadays, students' schoolbags are too heavy, and carrying them on their backs will affect the development of our spine. In a special invention activity of "bag design", I was inspired by vest clothing and designed a "vest bag". Draw a sketch first, improve it under the guidance of the teacher, and finally buy suitable fabrics to make samples.
There is a big schoolbag on the back of the "vest bag", and a schoolbag on the front, left and right. In this way, books and other school supplies can be put into each schoolbag in different categories, and the weight is evenly distributed throughout the body, which is conducive to the development and growth of students.
Telescopic book holder
When reading, we often need to fix open books to make room for copying or operating the computer. However, if the book is thick, it is difficult to take it off. An inventor in Yokohama, Japan, designed a retractable book holder. On the one hand, you can clamp the book in the middle seam, and you can also pull out a tongue to clamp the pages on both sides to prevent them from being tilted and closed.
Telescopic bookends can be made of metal or elastic plastic. You can also make one yourself.
Anti-roll corner plate for magnetic books
When I am doing my homework, the open exercise book is constantly rubbed by the moving elbow, and the corners of the pages often fold up, which makes it very unsightly. I think making a device to prevent books from curling may avoid this phenomenon.
I took a piece of cardboard and folded it in half, and installed a pair of buttons on its corners. When you do your homework, wrap it in the exercise book from below. The corners of the pages will be protected, so they will be folded. But with this device, the lower end of the notebook is raised by hard paper, which hinders writing, and the last few lines are easily blocked by hard paper. In view of these circumstances, I decided to continue to improve.
I found a piece of cardboard slightly larger than the unfolded book as the bottom plate, and then cut out a pressure plate 5 cm wide and as long as the bottom plate; Arrange the bottom plate and the pressure plate side by side, with the distance of 1 cm, and then connect the two plates with a cloth tape; Dig a hole in the corresponding position of the bottom plate and the pressure plate, embed a small magnet and stick it firmly, and then beautify this work-my anti-roll corner plate for magnetic books comes out.
When you want to do your homework, put the open notebook on the bottom plate, turn the pressure plate over and let the magnet attract you, and you can write.