Retractable Security Pen

Abstract

The invention discloses a telescopic safety pen. The telescopic safety pen comprises a pen point, a pen body and a pen cap, wherein the pen body is further provided with a telescopic rod; one end of the telescopic rod is provided with external screw threads; the pen point is provided with internal screw threads; the pen point is in threaded connection with one end of the telescopic rod, while a groove is formed in the other end of the telescopic rod; the groove is an arc rectangular groove; concave cavities are symmetrically arranged in the groove; positioning spring beads are arranged in the concave cavities; concave holes are formed in the end of the telescopic rod; clamping spring beads are arranged in the concave holes; the concave holes and the concave cavities are arranged at the same end of the telescopic rod; clamping V-shaped ring grooves are symmetrically formed in the inner wall of one end of the pen body, while positioning convex blocks are symmetrically arranged on the inner wall at the other end of pen body; positioning holes are formed in the positioning convex blocks. The telescopic safety pen is simple in structure, convenient to carry, easy and quick in use, excellent in applicability, and high in practicality, and the use intensity of the safety pen is not influenced.

Description

technical field [0001] The invention belongs to the technical field of safety pens, and in particular relates to a retractable safety pen. Background technique [0002] The safety pen is also called a defense pen, a tactical pen or an attack pen. It has the functions of breaking windows and self-defense. Because breaking a window requires a relatively large impact force, it also needs a certain length to avoid injuring hands. Therefore, most of the safety pens in the prior art are relatively Heavy and long, although it can guarantee the window-breaking and defense effects, it is not convenient to carry because it is long and heavy, which affects the applicability and practicability of the safety pen to a certain extent. Contents of the invention [0003] The object of the present invention is to provide a retractable safety pen with simple structure, good stability in use and portability. . [0004] The technical solution for realizing the purpose of the present inventio...

AI Technical Summary

Problems solved by technology

[0002] The safety pen is also called a defense pen, a tactical pen or an attack pen. It has the functions of breaking windows and self-defense. Because breaking a window requires a relatively large impact force, it also needs a certain length to avoid injuring hands. Therefore, most of the safety pens in the prior art are relatively Heavy and long, although it can guarantee the effect of breaking windows and defense, but because it is long and heavy, it is not convenient to carry, which affects the applicability and practicability of the security pen to a certain extent

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