Micro adaptive core for propelling pencil

Abstract

The invention relates to a micro adaptive core for a propelling pencil. The adaptive core comprises a tip sleeve, a core protective tube head, a spring seat, a chuck, an elastic expanding and supporting clamping piece, an insertion pipe, an elastic clamping piece and a spring, wherein the tip sleeve can be sleeved in the tip of the propelling pencil; the tip sleeve is internally provided with a damping piece; the front end of the tip sleeve is provided with the core protective tube head which is matched with the tip sleeve; a locking hoop is sleeved on the front end of the spring seat; the chuck is inserted in the spring seat; the front part of the chuck is provided with the elastic expanding and supporting clamping piece, and the rear part of the chuck is provided with the insertion pipe; the elastic clamping piece is sleeved in the locking hoop; the front end of the spring seat is inserted and fixed in the tip sleeve; the tip sleeve is internally provided with a loop step which limits the moving of the locking hoop; the front end part of the elastic clamping piece is provided with a boss which restores the locking hoop; the spring is sleeved between the chuck and the spring seat; a guide core pipe is fixedly connected with the insertion pipe in an inserting manner; and two ends of the spring respectively prop against the spring seat and the guide core pipe. The micro adaptive core provided by the invention is integrally assembled into a micro automatic pencil, and can form a standard piece as the core of the propelling pencil to be subjected to automation tests on related performances, and the tested result is the result of the whole pencil; and the micro adaptive core serving as a complete standard piece can be assembled together with different pencil rods to form different whole pencils.

Description

technical field [0001] The invention relates to a pulsating movement of a mechanical pencil, in particular to a micro-adaptive movement for a mechanical pencil which integrates all the functions of the mechanical pencil. Background technique [0002] The movement of the known propelling pencil mainly includes a barrel-type hand-held pen holder, a threaded connection or a point sleeve (pen tip) integrally formed at the end of the pen holder, a fixed core protection tube (movable damping) on ​​the tip sleeve, and a clip installed in the pen holder. head (flowering), locking hoop, spring; therefore the movement of the existing mechanical pencil is a part of the whole pen; the problems of the existing mechanical pencil movement are: ① the movement is a part of the whole pen, it must Relevant tests can only be carried out when the nib, inner core tube, push-type pen cap and other parts are assembled into a whole pen; ②The length of the nib and inner core tube will affect the appe...

AI Technical Summary

Problems solved by technology

[0002] The movement of the known propelling pencil mainly includes a barrel-type hand-held pen holder, a threaded connection or a point sleeve (pen tip) integrally formed at the end of the pen holder, a fixed core protection tube (movable damping) on ​​the tip sleeve, and a clip installed in the pen holder. head (flowering), locking hoop, spring; therefore the movement of the existing mechanical pencil is a part of the whole pen; the problems of the existing mechanical pencil movement are: ① the movement is a part of the whole pen, it must Relevant tests can only be carried out when the nib, inner core tube, push-type pen cap and other parts are assembled into a whole pen; ②The length of the nib and inner core tube will affect the appearance and performance of the whole pen, so the standardization of the movement is relatively poor;③ It cannot be used as an independent complete part for mechanical automation testing of relevant performance, and it is impossible to determine whether the produced movement is qualified, and it is difficult to carry out large-scale production; ④ The existing mechanical pencil movement is not an independent complete part, so the manufacturer produces It is impossible to uniformly use a universal and independent mechanical pencil movement for mechanical pencils of different specifications or shapes

Therefore, the problem that the existing above-mentioned mechanical pencil movement is not a complete independent part needs to be solved, so as to solve the mass production of the mechanical pencil movement, the automatic test of performance and the problem of universality

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