Force reciprocating pen

Abstract

The invention relates to a pen, in particular to a force reciprocating pen. The force reciprocating pen comprises a pen holder, a supporting tail tube, an adjusting inner rod, a return spring, a pen refill and a pressing sleeve, wherein the supporting tail tube is of a hollow inner cylinder structure; the front part and the rear part of the supporting tail tube are communicated in a penetrating manner; the inner part of the tube obliquely extends towards the axis of the supporting tail tube and is provided with one to more support fixing rods; the internal space of the supporting tail tube isdivided into using cavities and standing cavities by taking the support fixing rods as the boundaries; the adjusting inner rod is of a long rod body structure; a fixed table extending to the peripheryis arranged at the front end of the adjusting inner rod; an adjusting ring flange is arranged at the middle end of the adjusting inner rod; the adjusting inner rod is arranged at and sleeves the inner part of the supporting tail tube; the tail end of the adjusting inner rod penetrates through the supporting tail tube; the adjusting inner rod is matched with the pressing sleeve by using a thread or buckling mode; the pressing sleeve movably expands in the supporting tail tube; supporting guide slopes are arranged at the sides, close to the tail end, of the adjusting ring flange; reset slopes are arranged at the sides, close to the front end, of the adjusting ring flange; and the return spring and the pen refill are arranged in the pen holder. The pen can prevent drop and correct the writing strength, can be arranged in other pen structures, and adds the functions of preventing the drop and correcting the writing strength for other pens.

Description

technical field [0001] The invention relates to a pen, in particular to a reciprocating pen with force. Background technique [0002] With the development of the times, the existing pens have become more and more high-end and optimized a lot, and have complex structures. However, most of them are not drop-resistant. Even if they are drop-resistant, their protective structures are extremely complicated and cannot be widely promoted. After all, falling of the pen from the desk is a small probability event; if the cost is too high, then this small probability event is also a waste in terms of cost and resources; Continuous improvement, but if you want to install it in the pen case and still be able to prevent falling, the actual cost will be too high; the loss outweighs the gain; [0003] However, if the anti-drop problem is not optimized, after the pen is dropped, the refill will be damaged, and there will be many more damaged refills. This is a kind of pressure on the enviro...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to solve the problem that the existing pens cannot solve the problem of anti-dropping through a simple structure and a reasonable cost method, and to provide a reciprocating pen with force. After pressing, it will automatically retract into the pen holder, and when writing, it can write stably without shaking

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