Pressing type telescopic pen

Abstract

The invention discloses a pressing type telescopic pen which has simple structure and convenient assembly and can ensure permanent smoothness of telescoping. The technical scheme is as follows: the pressing type telescopic pen comprises a pen clamp, an upper penholder, a middle penholder, a lower penholder and a penpoint, wherein the penpoint, the lower penholder, the middle penholder and the upper penholder are sequentially connected. The pressing type telescopic pen is characterized in that a drive rod and a driven rod are arranged in the upper penholder and the middle penholder, one end ofthe drive rod is fixedly connected with the upper penholder and the pen clamp, the other end of the drive rod is provided with saw teeth which are arranged in a ring shape, and drive rod lugs which are arranged in the ring shape at intervals are arranged on the inner side wall of the drive rod; one end of the driven rod is provided with a boss, saw teeth which are matched with the drive rod are arranged on the inner side surface of the boss, positioning steps are arranged on the side wall of the boss, and driven rod lugs which are arranged in the ring shape at intervals are arranged at the other end of the driven rod; a spring is arranged between the end part of the driven rod and the pen clamp; and grooves which are matched with the positioning steps on the driven rod and circumferentially arranged are arranged in the middle penholder, and the driven rod is movably connected with the middle penholder through the positioning steps and the grooves.

Description

technical field [0001] The invention belongs to the field of telescopic pen devices, in particular to a push type telescopic pen. The telescopic pen retracts the pen head in the non-writing state, and the pen body can be retracted into a shorter pen body. After pressing and retracting, the pen head extends and the pen body elongates, which is very suitable for consumers of different hand shapes and ages. use. Background technique [0002] The existing push-type retractable pen is to complete the retractable action by adding special-shaped slide rails and steel balls inside the pen holder. The structure is very complicated, and it is very difficult to assemble during production and assembly. It is easy to cause wear and tear on the plastic slide rails, resulting in unsmooth expansion and contraction. [0003] In addition, the pen body of the existing push-type retractable pen cannot be freely retracted, so the pen body is either too long or too short. If it is too long, it ...

AI Technical Summary

Problems solved by technology

[0002] The existing push-type retractable pen is to complete the retractable action by adding special-shaped slide rails and steel balls inside the pen holder. The structure is very complicated, and it is very difficult to assemble during production and assembly. It is easy to cause wear of the plastic slide rails, r

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