Safety pen capable of preventing itself from being opened by children

Abstract

The invention relates to a safety pen capable of preventing itself from being opened by children. The safety pen comprises a pen rod, a pen sleeve and a pen refill. The pen refill is arranged in the pen rod. A protrusion is arranged in an inner ring of an opening of the pen sleeve. A flange matched with the protrusion is arranged at the tip of the pen rod. A press rod capable of pressing the pen refill out of the pen rod is arranged in the pen sleeve. A first thread is arranged below the protrusion, and a second thread matched with the first thread is arranged at the upper end of the outer side wall of the pen rod. The pen refill comprises an upper pen refill unit and a lower pen refill unit. A first through hole is formed at a position, positioned at the upper pen refill unit, of the pen rod. A pull rod penetrates the first through hole to be fixedly connected with the upper pen refill unit. The safety pen can prevent the children from opening a pen cap or pressing out the pen refill, thereby being high in safety.

Description

technical field [0001] The invention relates to a safety pen which can be prevented from being opened by children. Background technique [0002] The pen is a great invention of mankind, and it is a tool for writing or drawing. In families with children, adults often leave the pen behind after using it, and children often pick up the pen and use it as a toy. Ordinary pens, it is easy for children to press out the refill or open the pen cap. Children will scribble and scribble when holding the pen, staining clothes or furniture, and the tip of the pen is sharp, scratching on the furniture will draw a mark on the furniture , damage the furniture, poke the eyes, and accidentally hurt the eyes, which is very dangerous. Contents of the invention [0003] The invention aims at the deficiencies of the prior art, and provides a high-safety pen which can prevent children from opening the pen cap or pressing out the pen core. [0004] In order to solve the above-mentioned technica...

AI Technical Summary

Problems solved by technology

Ordinary pens, it is easy for children to press out the refill or open the pen cap. Children will scribble and scribble when holding the pen, staining clothes or furniture, and the tip of the pen is sharp, scratching on the furniture will draw a mark on the furniture , damage the furniture, poke the eyes, accidentally hurt the eyes, very dangerous

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