Safety pens that prevent children from opening

Abstract

The invention relates to a safety pen prevented from being opened by a child. The safety pen comprises a penholder, a pen cap, a drive device and a refill. The refill is arranged in the penholder, a protrusive ring is arranged on the refill, an elastic assembly is arranged at the front end of the refill in a sleeved mode, and the drive device comprises a connecting rod, a clamping head and a positioning device. The pen cap is arranged on the connecting rod in a sleeved mode, the connecting rod is fixedly connected with the clamping head which is connected with the refill, protrusive strips are arranged on the side edge of the clamping head, and multiple grooves are formed in the lower end of the pen cap. The upper ends of the protrusive strips are matched with the grooves, the positioning device is fixed to the inner wall of the penholder, and the positioning device comprises multiple sliding strips. The ends of the sliding strips are inclined planes, stopping strips are arranged between the sliding strips at intervals, first gear bars are fixedly connected to the refill, a combination groove is formed in the penholder, the first gear bars penetrate through the combination groove and extend to the outside of the penholder, the combination groove comprises a straight-bar-shaped groove in the vertical direction and arc grooves in the horizontal direction, and the arc grooves and the straight-bar-shaped groove are mutually communicated. The child can be prevented from opening the pen cap or pressing the refill out, and therefore safety is high.

Description

technical field [0001] The present invention relates to a safety pen that prevents children from opening it. 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 technical prob...

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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