CN205044389U

CN205044389U - Cut a device

Info

Publication number: CN205044389U
Application number: CN201520677031.0U
Authority: CN
Inventors: 吴海滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-02
Filing date: 2015-09-02
Publication date: 2016-02-24
Anticipated expiration: 2025-09-02

Abstract

The utility model discloses a cut a device. The utility model discloses a box body, push -and -pull rack group and gear circle, the leading flank of box body and the same position of trailing flank set up annular rail groove respectively, the gear circle is placed to annular rail inslot, and the leading flank of box body has circular trompil, side and downside set up the push -and -pull rack respectively and place the hole on the box body, and two push -and -pull racks are placed and are set up sharp rail groove between the hole, the push -and -pull rack comprises hand hole end and rack, and distolateral of hand hole sets up the hole of placing the finger, gear circle is outer, and to set up the annular protruding, annular arch inlay in annular rail inslot sets up the ratchet of twice cisoid in the gear circle, one ratchet is fixed with the penknife, and another ratchet inlays on gear circle inner wall, and the gear circle is located the both ends of penknife. The utility model discloses it is rational in infrastructure, novel in design, easy and simple to handle.

Description

Pencil sharpening device

Technical field

The utility model relates to stationery field, more particularly, relates to a kind of pencil sharpening device.

Background technology

Existingly cut the pen or shape tool and pencil sharpener mostly is fixture, such structure needs multiple rotary pencil through fixing blade, this time of cutting the action need of pen is long, and is easily cut by lead disconnected in the process of Propelling pencil with sharpener in cap, causes certain waste.

Utility model content

Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art, provides a kind of pencil sharpening device.

The utility model pencil sharpening device, is achieved by following technical proposals, comprises box body, push-and-pull tooth bar group and gear ring; The leading flank of described box body and the same position of trailing flank arrange circular rails groove respectively, holding gears circle in described circular rails groove, and the leading flank of box body has round hole, enters for pencil; The upper side of box body and downside arrange push-and-pull tooth bar putting hole respectively, arrange straight line rail groove between two push-and-pull tooth bar putting holes; Left surface or the right flank of box body arrange switching device;

Described push-and-pull tooth bar group is made up of 2 subtend push-and-pull tooth bars, and push-and-pull tooth bar is made up of hand hole end and tooth bar, and hand hole end side surface arranges the hole of placing finger;

Outside described gear ring, annular protrusion is set, annular protrusion is embedded in described circular rails groove, gear ring center arranges the hole being used for pencil and entering, twice ratchet is forward set in gear ring, one ratchet is fixed with penknife, another road ratchet is embedded on gear ring inwall, and gear ring is positioned at the two ends of penknife.

Compared with prior art, the beneficial effects of the utility model are:

Principle of the present utility model is the relative motion by subtend push-and-pull tooth bar, drives the gear ring being attached with penknife to rotate, realizes penknife and rotate the function of cutting pen.The utility model is rational in infrastructure, novel in design, easy and simple to handle.

Accompanying drawing explanation

Fig. 1 is the utility model structure collectivity schematic diagram;

Fig. 2 is that the utility model box body side coordinates schematic diagram with gear ring;

Fig. 3 is the utility model push-and-pull rack structure schematic diagram.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

As Figure 1-3, box body, push-and-pull tooth bar group and gear ring is comprised; Wherein:

1, box body, wherein leading flank 6 arranges circular rails groove with the identical subtend position of trailing flank, for positioning (see Fig. 2) the gear ring 1 being attached with penknife, and having round hole 2 at leading flank, entering for pencil; Upper side and downside arrange push-and-pull tooth bar putting hole, entering and moving for push-and-pull tooth bar 3; Straight line rail groove is set between two push-and-pull tooth bar putting holes, for retraining the movement locus of push-and-pull tooth bar; Left surface or right flank arrange openable switching device, for clearing up pen bits.

2, push-and-pull tooth bar group, be made up of 2 subtend push-and-pull tooth bars, push-and-pull tooth bar is made up of (see Fig. 3) hand hole end 4 and tooth bar, and hand hole end side surface arranges the hole 5 of placing finger.

3, gear ring, penknife is positioned at above-mentioned box body, gear ring is positioned at the two ends of penknife, outside gear ring, annular protrusion is set, this projection is embedded in circular rails groove for retraining its circular motion, gear ring wherein towards box body leading flank arranges the perforate being used for pencil and passing, simultaneously, the ratchet of twice subtend is set in this gear ring, be attached to together on penknife, be embedded on gear ring inwall together, when push-and-pull tooth bar is advanced, gear ring and penknife link, when push-and-pull tooth bar is extracted out, the motion of gear ring does not affect the motionless of penknife, reach penknife when push-and-pull tooth bar advances next time to continue to cut in the position that last time cuts, the process of cutting pen is made to keep continuity.

Operation principle of the present utility model: finger is placed in the hole on push-and-pull tooth bar by end user, and pencil is inserted in the hole of box body leading flank, this tooth bar of subtend push-and-pull, this tooth bar makes the penknife of gear ring and attachment thereof produce rotation, thus completes the work rotating and cut pen.Meanwhile, the sidewall of box body can be opened, for clearing up pen bits.

The above is only preferred embodiment of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a pencil sharpening device, is characterized in that, comprises box body, push-and-pull tooth bar group and gear ring; The leading flank of described box body and the same position of trailing flank arrange circular rails groove respectively, holding gears circle in described circular rails groove, and the leading flank of box body has round hole, enters for pencil; The upper side of box body and downside arrange push-and-pull tooth bar putting hole respectively, arrange straight line rail groove between two push-and-pull tooth bar putting holes; Left surface or the right flank of box body arrange switching device;

Outside described gear ring, annular protrusion is set, annular protrusion is embedded in described circular rails groove, gear ring center arranges the hole being used for pencil and entering, the ratchet of twice subtend is set in gear ring, one ratchet is fixed with penknife, another road ratchet is embedded on gear ring inwall, and gear ring is positioned at the two ends of penknife.