Convenient pen
A convenient, pen cover technology, applied in printing, writing utensils, writing connectors, etc., can solve problems such as unsanitary and harmful to the body, and achieve the effect of saving time, simple structure and speeding up writing.
Inactive Publication Date: 2012-05-30
张美君
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Problems solved by technology
[0002] At present, when teachers write on the blackboard during teaching, they usually write with chalk in their hands, and their hands are often covered with chalk dust, which is extremely unhygienic and harmful to the body.
Method used
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[0009] Such as figure 1 As shown, the present invention includes a pen case 1, a chute 6 is provided in the pen case 1, a piston block 2 is slidably connected with the pen case 1 through the chute 6, chalk 3 is housed in the pen case 1 at the lower end of the piston block 2, and an anti-backward is provided at the upper end of the piston 2. Component 5.
[0010] The upper end of the pen cover 1 is equipped with a wiping board 4 .
[0011] When in use, push down the piston block 2 so that the chalk 3 is exposed to the lower end of the pen case 1 and can be used for writing. If a small error occurs in writing, use the wiper 4 on the upper end of the pen case 1 to wipe it off. The teacher does not need to directly hold the chalk 3 with his hands. write.
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The invention discloses a convenient pen, which comprises a pen sheath, wherein a sliding chute is formed in the pen sheath; a piston block is connected with the pen sheath in a sliding way through the sliding chute; a chalk is arranged in the pen sheath at the lower end of the piston block; the upper end of the piston is provided with an anti-retreat member; and the upper end of the pen sheath is provided with an erasing board. In the convenient pen provided by the invention, the piston block is connected with the pen sheath in a sliding way through the sliding chute, and the chalk is arranged in the pen sheath at the lower end of the piston block and can be driven to move downwardly in the pen sheath under the driving action of the piston block, so that a teacher can finish a blackboard writing action by holding the pen sheath; the anti-retreat member can be used for preventing the chalk from retreating during writing and influencing writing quality; the convenient pen has a simple structure, is convenient to use, and contributes to sanitation and body health; and the erasing board can be used for erasing small errors in a writing process, so that time is saved, and writing speed is increased.
Description
technical field [0001] The invention relates to a teaching article, in particular to a convenient pen for blackboard writing. Background technique [0002] At present, when teachers write on the blackboard during teaching, they usually use their hands to write with chalk, which is often covered with chalk dust, which is extremely unhygienic and harmful to the body. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a handy pen that enables teachers to complete blackboard writing actions without holding chalk. The pen is simple in structure, easy to use, and conducive to hygiene and health. [0004] In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a convenient pen, including a pen cover, a chute is provided in the pen cover, the piston block is slidably connected with the pen cover through the chute, chalk is housed in the pen cover at the lower end of the ...
Claims
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Inventor 张美君
Owner 张美君