CN2629979Y

CN2629979Y - Core-extending adjustable pencil

Info

Publication number: CN2629979Y
Application number: CN 03255879
Authority: CN
Inventors: 仇世宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-22
Filing date: 2003-07-22
Publication date: 2004-08-04
Anticipated expiration: 2013-07-22

Abstract

The utility model is a core-extending adjustable pencil, which comprises a pencil core, a pencil case, a clamping sleeve and an adjusting sleeve. The pencil core is clamped or released by operating the adjusting sleeve to realize the adjustment of the extending of the pencil core. Therefore, the core can be fully utilized, and the using cost is saved. Replacing the existing pencil, the utility model can save a great amount of wood and has simple structure, low cost and convenient pencil core exchanging and extending.

Description

Adjustable of pen core elongation

Technical field

The utility model relates to cultural goods---a class, the especially adjustable pen of pen core elongation.

Background technology

In daily student and work, pen is indispensable writing implement, the kind of pen is a lot, pen is arranged, ball pen, pencil, propelling pencil or the like, with regard to pencil, this is the most frequently used, consumption is big again, especially in, the pupil, study be unable to do without pencil, because it can be revised by rubber, therefore welcome by the student, but pencil need consume a large amount of timber, this is an immeasurable waste, for this reason, the appearance of propelling pencil is to replacing the pencil function, save lumber consumption and obtained certain effect, but that propelling pencil must be finished cost is higher, pen core changes the outfit not too convenient.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the defective of prior art and a kind of simple in structure, cost is low, pen core changes the outfit adjustable pen of pen core elongation easily is provided.

Embodiment of the present utility model is:

Adjustable of pen core elongation comprises a shell and pen core, it is characterized in that being provided with gripping sleeve between described shell and the pen core, and gripping sleeve is provided with the regulating sleeve that is threaded outward.

Described gripping sleeve is outer to be slidingly matched with a shell close-fitting, interior and pen core.

Described gripping sleeve leading section is the outer cone body structure that matches with regulating sleeve female cone body.

The utility model compared with prior art, gripping sleeve is loosened or clamp pen core by the operation regulating sleeve, realize pen core elongation adjusting purpose, help making full use of of pen core, for the consumer saves use cost, this is simple in structure, low cost of manufacture, its pen core that changes the outfit is all very convenient with the adjusting elongation, and replace common pencil and can save a large amount of timber, be the cheap products in the pen.

Description of drawings

Fig. 1 has provided the utility model structural representation.

The specific embodiment

Below with reference to above-mentioned accompanying drawing the utility model embodiment is specifically described again.

As shown in Figure 1, the pen core elongation is adjustable, and pen is a pen core 1 with lead for retractable pencil or other colored watercolor pencil, the outer gripping sleeve 3 of pen core is slidingly matched with pen core, be to be convenient to the guide elements that the pen core elongation is regulated, the front end of gripping sleeve 3 is the outer cone body structure, the middle part is a helicitic texture, and the rear portion is the cylinder of a shell 4 close-fittings.Shell 4 endoporus are shoulder hole, anterior and gripping sleeve 3 close-fittings, and rear portion and pen core 1 are slidingly matched.The regulating sleeve 2 anterior inside and outside cone shapes that are, the rear portion is and a cylinder of shell same diameter that the cylinder endoporus is an internal thread, is threaded with gripping sleeve.The tapering of regulating sleeve 2 anterior female cone bodies requires consistent with the tapering of gripping sleeve 3 front ends, matches on the structure.

Fig. 1 is in clamped condition for pen core 1, and the female cone body of regulating sleeve 2 tightly is pressed on the cylindrical cone of gripping sleeve 3, and gripping sleeve is tightly clamped pen core, and this moment, this pen promptly can be used to write.When pen core need extend, unclamp regulating sleeve, remove compressing of regulating sleeve female cone body and gripping sleeve cylindrical cone, gripping sleeve unclamps because of elasticity, has unclamped the clamping to pen core, and pen core can be done random stretching, and reaches to screw regulating sleeve after the requirement length and just can.

Of the present utility model shell 4, gripping sleeve 3, regulating sleeve 2 adopt cheap plastics single injection-molded.

Claims

1, the adjustable pen of a kind of pen core elongation comprises a shell (4) and pen core (1), it is characterized in that being provided with between described shell and the pen core gripping sleeve (3), and gripping sleeve is provided with the regulating sleeve (2) that is threaded outward.

2, the adjustable pen of pen core according to claim 1 elongation is characterized in that described gripping sleeve (3) is outer to be slidingly matched with a shell (4) close-fitting, interior and pen core (1).

3, the adjustable pen of pen core elongation according to claim 1 and 2 is characterized in that described gripping sleeve (3) leading section is the outer cone body structure that matches with regulating sleeve (2) female cone body.