Multifunctional mechanical pencil for elementary student

Abstract

The invention discloses a multifunctional mechanical pencil for primary school students, which comprises a rubber tank, a pen holder and a miniature projector. A micro-projector is provided on the side, a nib is provided at the lower end of the pen holder, a pen cap is provided outside the nib, a pencil lead groove is provided at the inner lower end of the pen holder, a pencil lead is provided inside the pencil lead groove, and a pencil lead is provided inside the pen holder. There is a TF card slot, one side of the TF card slot is provided with a charging interface, the lower end of the charging interface is provided with a battery, the lower end of the battery is provided with a signal transmitter, the lower end of the signal transmitter is provided with a speaker, and the lower end of the speaker is Equipped with a micro-processor, the micro-projector at the lower end of the pen holder can project pupils when they are writing, so that pupils can practice good calligraphy with hard-tipped pens conveniently, and provide great opportunities for pupils to use mechanical pencils. help.

Description

technical field [0001] The invention relates to a pencil, in particular to a multifunctional mechanical pencil for pupils. Background technique [0002] Pencil is a special type of pen used for writing and drawing sketches. It has a history of more than 400 years. Among them, pencils for drawing and sketching are divided into many types. Mechanical pencils are active pencils that are divided into thick-core and thin-core mechanical pencils according to the diameter of the pencil core. According to the way of core out, it can be divided into drop core type, rotary type, pulse type and automatic compensation type. The world's first mechanical pencil was invented in England in 1822. In 1915, the Japanese Tokuji Hayakawa invented a mechanical pencil. At the beginning, this new writing instrument was not recognized in Japan. It was not until the export orders surged and the domestic demand in Japan grew rapidly. Hayakawa also expanded with sales of mechanical pencils. The me...

AI Technical Summary

Problems solved by technology

[0003] However, the existing mechanical pencils have a simple structure and a single function. When primary school students use mechanical pencils for the first time, they do not understand the brushwork and usage methods, especially many primary school students are used to playing with mobile phones and computers. Pencils are lost, and children don't pay special attention to hygiene and health, which has a great impact on children's safety and health

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