Mark pen

Abstract

The invention discloses a mark pen, and relates to the technical field of mark pen manufacturing. The mark pen comprises a pen container and an ink core pipe arranged in the pen container. The ink core pipe is provided with a pen point stretching out of the front end of the pen container. An ink storage bottle is arranged at the part, above the ink core pipe, of the pen container and comprises a bottle body with an ink injection hole formed in the lower portion, and a bottle cap arranged on the top of the bottle body. The bottle cap is provided with a conical center hole with the large upper portion and the small lower portion. A transition pipe provided with an ink injection channel is arranged above the bottle cap through a spring. The transition pipe is provided with a conical pipe part matched with the conical center hole of the bottle cap and a positioning part embedded in the inner wall of the pen container in a connected manner. A threaded hole and a conical hole with the large upper portion and the small lower portion are formed in the top of the ink injection channel of the transition pipe, wherein the conical hole is located below the threaded hole. The transition pipe is in screw joint with the pen cap through the threaded hole. Compared with the prior art, ink can be added in the mark pen, and the problem that existing mark pens cannot be cyclically used is solved.

Description

technical field [0001] The invention relates to the technical field of marker pen manufacture, in particular to a marker pen capable of adding ink. Background technique [0002] Mark pen, also known as marker pen or marking pen, is a special drawing color pen for writing or painting; Most existing marker pens include a pen holder and an ink core tube arranged in the pen holder, and the ink core tube of the ink core tube The front end is provided with the nib that stretches out its pen holder. This kind of marker pen has the following problems in the use process: because the marker pen cannot add ink, it is often thrown away after use and cannot be recycled, which is wasteful and not environmentally friendly. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a marker pen capable of adding ink to solve the problem that the existing marker pen cannot be recycled. [0004] The technical solution adopted by the presen...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a marker pen capable of adding ink to solve the problem that existing marker pens cannot be recycled

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