CN2454151Y

CN2454151Y - Pen-shaft type pencil propelling sharpener

Info

Publication number: CN2454151Y
Application number: CN 00268096
Authority: CN
Inventors: 何长根
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-22
Filing date: 2000-12-22
Publication date: 2001-10-17
Anticipated expiration: 2010-12-22

Abstract

The utility model discloses a pen-rod type pencil rotary sharpener. The utility model comprises a hollow orthohexagonal outer sleeving, and a blade is installed on a notch outside a conical body of the outer sleeving. The utility model is characterized in that the lower end of an orthohexagonal hollow inner sleeving is inserted in the outer sleeving, the upper end of the inner sleeving is connected with a combination rack for a ratchet wheel through a joint, a ratchet wheel is installed on the combination rack for a ratchet wheel, and a ratchet bar, the upper face of which is provided with an elastic can be engaged with the ratchet wheel; the ratchet wheel is in interference fit with a ratchet wheel subassembly, and a clamp tool and the ratchet wheel subassembly are connected through screw thread. The utility model has the advantages of favorable rotary sharpening effect, simple structure, convenient use and low price; besides, a user can rotatablely sharpen a pencil at any time with one hand.

Description

Pen type pencil volume sharpener

The utility model relates to stationery, especially relates to a kind of pen type pencil volume sharpener.

The pencil volume sharpener of people's use at present, can be divided into two kinds: a kind of is the small rolls sharpener of matchbox-type, this volume sharpener needs bimanualness when using, promptly take on the other hand and roll up sharpener, changes pencil on the other hand, and is not too convenient, loses easily; Another kind is desk-top hand volume sharpener, still will with the hands operate when this volume sharpener uses, and promptly pins knife rest on the other hand, shakes handle on the other hand, and is still inconvenient, and volume is bigger, is not easy to carry, and only is adapted at office and uses.

The purpose of this utility model provide a kind of can singlehanded roll cutting pencil whenever and wherever possible, volume cuts effective, simple in structure, cheap pen type pencil volume sharpener.

The purpose of this utility model is achieved in that the utility model comprises hollow outer tube, the front end of outer tube is a cone, the rear end is a hexahedron, indentation, there outside the cone of outer tube is equipped with the blade that is screwed, feature is that insert in the outer tube lower end of the hollow inner sleeve of hexahedron shape, the upper end has the ratchet combined bay of opening to be connected by a joint and an end, and be screwed, in the ratchet combined bay, be provided with ratchet, the sour jujube bar that is provided with shell fragment above can enter in the ratchet combined bay and ratchet engaged, the front end of ratchet is equipped with compression spring, and ratchet and ratchet sub-assembly interference fit clamp tool and ratchet sub-assembly by being threaded.

The lower end is equipped with hook down in the hexahedron of outer tube, is equipped with in the lower end of inner sleeve and rises to the bait, and on the upper end that is placed on the extension spring in outer tube and the inner sleeve was hooked in and rises to the bait, the lower end was hooked in down on the hook.

The rear end and the inner sleeve of outer tube of the present utility model are hexahedron, and inner sleeve inserts in the outer tube and can move up and down, but cannot rotate.Unscrew as long as will clamp tool earlier during use, one that then pencil need be cut down is inserted into the blade position in the middle of clamping tool, suitable then pull-up inner sleeve, and screw the clamping tool, like this as long as push away a promotion sour jujube bar with the thumb one of a hand with putting, make the sour jujube bar drive ratchet and rotate, ratchet sub-assembly, clamping tool and pencil also can rotate together, so just can singlehanded roll cutting pencil.Extension spring can drive pencil and advance automatically when pencil rotates.Therefore roll cutting pencil, volume are cut effective, simple in structure, easy to use, cheap advantage whenever and wherever possible to the utlity model has one hand.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a cross-sectional schematic of the present utility model.

Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.

The utility model comprises hollow outer tube 1, the front end of outer tube 1 is a cone, the rear end is a hexahedron, indentation, there outside the cone of outer tube 1 is equipped with the blade of fixing with screw 11 10, insert in the outer tube 1 lower end of the hollow inner sleeve 2 of hexahedron shape, the upper end has the ratchet combined bay 4 of opening to be connected by a joint 3 and an end, and it is fixing with screw 9, in ratchet combined bay 4, be provided with ratchet 16, the sour jujube bar 8 that is provided with shell fragment 7 above can enter in the ratchet combined bay 4 and mesh with ratchet 16, the front end of ratchet 16 is equipped with compression spring 15, and ratchet 16 and ratchet sub-assembly 5 interference fit clamp tool 6 and ratchet sub-assembly 5 by being threaded.

The lower end is equipped with down hook 12 in the hexahedron of outer tube 1, is equipped with in the lower end of inner sleeve 2 and rises to the bait 14, and the upper end that is placed on the extension spring 13 in outer tube 1 and the inner sleeve 2 is hooked in rises to the bait on 14, and the lower end is hooked in down on the hook 12.

During use, as long as will clamp tool 6 earlier unscrews, one that then pencil need be cut down is inserted into blade 10 positions in the middle of clamping tool 6, suitable then pull-up inner sleeve 2, and screw clamping tool 6, pencil can not be rotated.Push away one with the thumb one of a hand then and promote sour jujube bar 8 with putting, because the effect of shell fragment 7, sour jujube bar 8 natures that are pushed and ratchet 16 engagements, driving ratchet 16 rotates, ratchet sub-assembly 5, clamping tool 6 and pencil be rotation together also, thereby make the pencil that is on 10 mouthfuls on the blade be whittled into tip, so just realized singlehanded roll cutting pencil by volume.Extension spring 13 can drive pencil and advance automatically when pencil rotates.Compression spring 15 can promote sour jujube bar 8 and automatically reset when thumb is loosening, in order to pushing away again.

Claims

1, a kind of pen type pencil volume sharpener, comprise hollow outer tube (1), the front end of outer tube (1) is a cone, the rear end is a hexahedron, indentation, there outside the cone of outer tube (1) is equipped with the fixing blade (10) of screw (11), it is characterized in that: insert in the outer tube (1) lower end of the hollow inner sleeve of hexahedron shape (2), the upper end has the ratchet combined bay (4) of opening to be connected by a joint (3) and an end, and it is fixing with screw (9), in ratchet combined bay (4), be provided with ratchet (16), the sour jujube bar (8) that is provided with shell fragment (7) above can enter in the ratchet combined bay (4) and mesh with ratchet (16), the front end of ratchet (16) is equipped with compression spring (15), ratchet (16) and ratchet sub-assembly (5) interference fit clamp tool (6) and ratchet sub-assembly (5) by being threaded.

2, pen type pencil volume sharpener as claimed in claim 1, it is characterized in that: the lower end is equipped with hook (12) down in the hexahedron of outer tube (1), lower end at inner sleeve (2) is equipped with rise to the bait (14), the upper end that is placed on the extension spring (13) in outer tube (1) and the inner sleeve (2) is hooked on rise to the bait (14), and the lower end is hooked in down on the hook (12).