CN203752731U

CN203752731U - Peeling-free auto-lead pencil with replaceable pencil leads

Info

Publication number: CN203752731U
Application number: CN201320842898.8U
Authority: CN
Inventors: 张建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-08-06
Anticipated expiration: 2023-12-11

Abstract

The utility model provides a peeling-free pencil with replaceable pencil leads. The pencil is characterized in that two semi-circular plastic pencil shells are internally provided with pencil leads; the centers of the pencil shells are provided with pencil lead slots which are combined together, a pencil point head is fixed by virtue of a locking nut, a movable push piece is loaded into the pencil shells from a pencil tail, and then the pencil tail is fixed by virtue of a fixing sleeve; the two semi-circular pencil shells are internally provided with avoiding slots, and the movable push piece can just pass through the avoiding slots and is used for pushing one pencil lead out of the pencil head; after being matched with a pencil lead sharpener, the pencil can be used normally; when the exposed pencil lead is used up, another pencil lead is continuously pushed out by the push piece through only slightly loosening the locking nut; as long as the pencil tail fixing sleeve is pulled off, the movable push piece is taken out, the pencil leads are guided in by virtue of a funnel-shaped bell mouth, then the push piece is put in, and the fixing sleeve is assembled, so that pencil replacement is realized.

Description

Exempt to cut interchangeable lead for retractable pencil and write continuous pencil

Affiliated technical field

The utility model relates to a kind of Writing-painting instrument, relates in particular to the pencil of exempting to cut interchangeable lead for retractable pencil.

Background technology

At present, known have traditional pencil to be manufactured by timber, not only planes time-consuming, and waste timber also brings rubbish, and can not use while using shorter length, causes a large amount of wastes; Also have existing propelling pencil, though solved, exempt to cut, but lead for retractable pencil is too thin, easily broken core, an accessory is various, dismounting inconvenience, function singleness.

Summary of the invention

In order not cause waste; response conserves forests and reduces high-quality timber use amount; improve and write efficiency; reduce rubbish protection of the environment; the utility model provides a kind of pencil to adopt a plastic material system shell, not only does not need to cut shell, and can change lead for retractable pencil; lead for retractable pencil utilization rate is improved greatly, can coordinate pencil-lead sharpener to use simultaneously.

The utility model solves the technical scheme that its technical problem adopts: pencil-lead is put into two semicircle fibertip pen shells, Bi Ke center band lead for retractable pencil groove, be combined with the fixing nib end of locking nut, by a tail, pack movable push piece into shell, then a tail is fixed with fixed cover.With movable push piece, pen core is released to nib and just can normally use, when the pen core exposing is finished, needs only and unclamp a little locking nut, then continue to release lead for retractable pencil with movable push piece.Change lead for retractable pencil and only need pull out a tail fixed cover, taking-up activity push piece, lead for retractable pencil is imported by infundibulate horn mouth, is loaded on push piece, fixed cover.

The beneficial effects of the utility model are, remove the shell that sharpens a pencil from, save time, and reduce timber waste, reduce rubbish, and replaceable lead for retractable pencil, recycles a shell, and lead for retractable pencil utilization rate is considerably beyond Wood-bar pencil; Cause is pencil simple structure for this reason, in shell not as normal activity or the various accessory of propelling pencil, more than so pencil-lead groove diameter can be accomplished 2.0mm, so just can fill the lead for retractable pencil that diameter is larger, even if also just realize pen core, expose and morely also needn't worry can break, so just made up propelling pencil and drawn a picture and the defect of the aspect such as carpenter's setting-out at the fine arts.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the utility model schematic perspective view.

Fig. 2 is the vertical section structural map of example.

Fig. 3 is the I-I cutaway view of Fig. 2.

Fig. 4 is the wherein schematic perspective view of an accessory of example.

Fig. 5 is the wherein profilograph of an accessory of example.

Fig. 6 is the E--E cutaway view of Fig. 5.

Fig. 7 is the wherein schematic perspective view of an accessory of example.

Fig. 8 is the profilograph of Fig. 7.

Fig. 9 is the F--F cutaway view of Fig. 8.

Figure 10 is the schematic perspective view that the utility model is used in conjunction with part.

Figure 11 is the cross-sectional plan view of Figure 10.

Figure 12 is the N--N cutaway view of Figure 11.

The specific embodiment

In figure: 1 pencil-lead, 2 locking nuts, 3 semicircle shell wherein, 4 another semicircle shell, 5 tail fixed covers, 6 movable push pieces, 14 shell junctions, 18 pen core sharpeners.

In the example shown in Fig. 4, pencil-lead 1 is put into a semicircle shell 3 or 4, a semicircle shell 3 and 4 is to connect by being similar to shell connected mode, on a semicircle shell, there are respectively concavo-convex anchor point 12 and 13, a semicircle shell 3 and 4 is combined and forms a cylinder, the written position of shell becomes cone-shaped 18, in cone, there is out stria 7, in a shell cone 12 millimeter of entering, are external screw threads 11, in the example shown in Fig. 5 Fig. 6, one end with internal thread 16. nuts in the ring of ring lock jack panel 2 becomes cone-shaped 17, in the example shown in Fig. 1 Fig. 2, by locking nut 2 externally threaded one end of screw-in pen shell band, gradient 17 and the gradient 18 on a shell on locking nut just in time coordinate, after screwing, can make the stria 7 in a shell cone be shunk, thereby fixing pencil-lead, movable push piece 6 is inserted to a shell from a tail, on shell, there is a bit-avoiding slot 10, just can allow the one end that pushes away lead for retractable pencil 15 on movable push piece pass through, again a tail fixed cover 6 is inserted in to a tail, tail, in external diameter tapering and fixed cover, ring tapering just in time coordinates, thereby a two halves shell is fixed, when the lead for retractable pencil that nib is exposed is finished, outward winding locking screw a little and a two halves shell is fixed, when the lead for retractable pencil that nib is exposed is finished, the locking nut of outwarding winding a little, just can release lead for retractable pencil with movable push piece 6, lead for retractable pencil is finished in the time of need to changing, take off a tail fixed cover 5, take off movable push piece 6, the locking nut of need not outwarding winding completely, pen core is inserted from a tail infundibulate 9, until lead for retractable pencil exposes nib, load onto successively more movable push piece, tail fixed cover, can continue to use.

In the example shown in Figure 10, be in cuboid of hollow out, to be provided with the plastic blade pen core sharpener that three Homogeneous Circulars are arranged, and it is large to form surface, the cone space that the inside is little, has so just obtained required pen core.

Claims

1. exempt to cut interchangeable lead for retractable pencil and write a continuous pencil, in two semicircle shells, install pencil-lead and movable push piece, nib is fixed with locking nut, tail is fixed with fixed cover, it is characterized in that: movable push piece is released pencil-lead and exposed nib, then locking nut, coordinate pen core sharpener to use.

2. according to claim 1ly exempt to cut interchangeable lead for retractable pencil and write continuous pencil, it is characterized in that: on a shell, in the tapering of written one end and locking nut, the tapering of ring coincide, and the stria at written tapering position, is shunk by the locking effect of locking nut.

3. according to claim 1ly exempt to cut interchangeable lead for retractable pencil and write continuous pencil, it is characterized in that: in a tail fixed cover, the gradient of ring and the gradient of a tail external diameter are identical.

4. according to claim 2ly exempt to cut interchangeable lead for retractable pencil and write continuous pencil, it is characterized in that: in locking nut, be equipped with internal thread, corresponding shell nib position is provided with external screw thread.

5. according to claim 1ly exempt to cut interchangeable lead for retractable pencil and write continuous pencil, it is characterized in that: after a two semicircular shell is combined, a side is provided with bit-avoiding slot, what just allow movable push piece pushes away core end process.

6. according to claim 1ly exempt to cut interchangeable lead for retractable pencil and write continuous pencil, it is characterized in that: hollow out cuboid inside is provided with the plastic blade that three Homogeneous Circulars are arranged.