CN201998710U

CN201998710U - Automatic pencil sharpener

Info

Publication number: CN201998710U
Application number: CN2011200967384U
Authority: CN
Inventors: 蒋康宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-29
Filing date: 2011-03-29
Publication date: 2011-10-05
Anticipated expiration: 2021-03-29

Abstract

The utility model discloses an automatic pencil sharpener, which comprises a machine body shell, a back cover, a front cover and a spiral tool bit, wherein the front cover is provided with a pencil insertion hole; the spiral tool bit is arranged in the pencil insertion hole; a garbage bin is arranged below the pencil insertion hole; the back cover is provided with a jiggle bar; the jiggle bar is connected with the spiral tool bit through a one-way hand-operated device; the jiggle bar is connected with a rotating shaft of a direct current motor through a one-way gear and a motor output gear; and the direct current motor is also connected with a power supply control plate. The utility model has the beneficial effects that: a pencil is not required to be held by a hand, and the automatic pencil sharpener is easy to operate and can stop automatically; the power is high, and a rechargeable battery is durable; and the automatic pencil sharpener has a compact structure and a small size, is convenient to carry, and is manual/automatic and more convenient and simpler.

Description

A kind of propelling pencil is cut

Technical field

The utility model relates to crowded pencil sharper, mainly is that a kind of propelling pencil is cut.

Background technology

It generally is Hand pencil sharpener; Office class electric pencil cutter can stop automatically, but volume is bigger, all uses the 220V power supply; Carry class electric pencil cutter, can not stop automatically after cutting.When sharpening a pencil, hand all will firmly be held pencil, not the propelling pencil cutter that uses at the pupil.The bad operation of the student of primary grades generally is that the head of a family helps to cut.Such as:

1, the easy U.S. electric pencil cutter V-5 of Ri Ben ELM.Shortcoming: the motor power deficiency, hand will firmly be held pencil during use, can not stop automatically.Advantage: volume is less, can carry, and adopts high-quality spiral cutter head, and thickness is adjustable.

2, Japanese imported with original packaging EPS77.Shortcoming: volume is too big, and weight is too heavy, and hand will firmly be held pencil during use, and the pencil that cutting is good is too coarse.Advantage: can stop automatically.

3, the electronic pencil sharpener of Eagle M5033B west wind.Shortcoming: do not adopt the spiral cutter head, hand will firmly be held pencil during use, prevents that excessive cutting power is relatively poor, can not stop automatically.Advantage: volume is less, can carry, and price is low.

4, Mitsubishi's electric pencil planer ES-10.Shortcoming: volume is bigger, carries inconvenience, and hand will firmly be held pencil during use, can only use the 220V power supply.Price is more expensive.Advantage: torsion is strong, stops automatically, is fit to the office space.

The utility model content

The purpose of this utility model will overcome the deficiency of above-mentioned technology just, and the propelling pencil of provide a kind of pupil of can solve to use Hand pencil sharpener time effort, bad use is cut.

The utility model solves the technical scheme that its technical problem adopts: this propelling pencil is cut, comprise fuselage cover, bonnet, protecgulum, spiral cutter head, protecgulum is provided with pencil insertion hole, be provided with the spiral cutter head in the pencil insertion hole, the pencil insertion hole below is provided with dustbin, described bonnet is provided with crank handle, crank handle links to each other with the spiral cutter head by unidirectional manual setter, crank handle links to each other with dc motor shaft by ratchet and motor output gear, and direct current generator also is connected with power board.

As preferably, bonnet is provided with charging inlet and start button.

As preferably, described power board comprises the startup delay circuit, cutting testing circuit, circuit for controlling motor.

The effect that the utility model is useful is: need not to grasp pencil, and simple to operate, and can stop automatically; Powerful, rechargeable battery is durable in use; The structure letter is gathered, and volume is little, and is easy to carry, and the hand automatic dual-purpose is easier.

1, safety again simple to operate.One key operation stops automatically.The disconnected core of cleaning is easy, and the hand automatic dual-purpose is easier.When the bottom dustbin took out, pencil-knife quit work, and uses safer.

2, the structure letter is gathered.Volume is little, and is easy to carry.

3, cutting speed is fast and quality is high.The normal cutting time is 1-2 second.Adopt high-quality spiral cutter head, the cutting quality height.

4, cost is low more economical.Cheap long service life, low power consumption was once charged available one month, can use repeatedly.

Description of drawings

Fig. 1 is the utility model front view;

Fig. 2 is the utility model rearview;

Fig. 3 is the utility model plan structure schematic diagram;

Fig. 4 is the power board circuit theory diagrams

Description of reference numerals: crank handle 1; Bonnet 2; Power board 3; Motor output gear 4; Fuselage cover 5; Direct current generator 6; Protecgulum 7; Spiral cutter head 8; Ratchet 9; Unidirectional manual setter 10; Charging inlet 11; Start button 12; Pencil insertion hole 13; Dustbin 14.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Adopt high-quality spiral cutter head 8, small-sized deceleration direct current generator 6 be a power, and lithium battery is a power supply, is equipped with automatic power control panel 3, control pencil cut finish after and stop automatically.As want manual operation, and can directly pull out folding crank handle 1, rotate crank handle 1 again, thus spiral cutter head 8 cutting pencils.Mechanical part mainly adopts a ratchet 9 and a unidirectional manual setter 10.Circuit part mainly adopts an electric current relay to finish automatically to stop.

1, mechanical main composition: deceleration direct current generator 6, spiral cutter head 8, ratchet 9, unidirectional manual setter 10.

When (1) electronic, motor output gear drives ratchet 9, thereby drives 8 work of spiral cutter head, unidirectional manual setter 10 idle running this moment, and crank handle 1 is motionless.

(2) manually the time, pull out folding crank handle 1 earlier, rotate crank handle 1 again and drive unidirectional manual setter 10, thereby drive 8 work of spiral cutter head, ratchet 9 idle running this moment, direct current generator 6 does not rotate.

2, circuit main composition: time-delay disconnected in 1 second after the momentary connection that is made of triode, capacitor, resistance, came starter motor work.The junction closure of small current relay keeps machine operation.After the pencil cutting was finished, the contact of electric current relay disconnected, and motor shuts down.

3, the course of action of circuit theory diagrams:

(1), dc source starts direct current generator by starting element, and disconnected the startup loop after delaying time 1 second.(starting pencil-knife work)

(2), amperometry element and design parameter compare, the data 〉=design parameter of amperometry this moment element continues to keep the direct current generator running by the start-up control element.(in 1 second, pencil is not finished as having cutting, then continues to keep pencil-knife work.)

(3), during the data of amperometry element＜design parameter,, stop the direct current generator running by the start-up control element.(after pencil cutting finishes, then stop pencil-knife work automatically.)

4, operating procedure

(1), protecgulum is pulled out certain distance, and in the pencil insertion hole.

(2), click the start button 12 of fuselage, pencil-knife is started working, and after the pencil cutting is finished, stops automatically, can take out use.

(3), clear up dustbin 14 in case of necessity.

When core is broken in cleaning as need: take off bonnet 2 earlier, then knife rest is rotated counterclockwise 90 ° of taking-ups, transfer to the disconnected core of pencil to get final product with toothpick and so on.Step is opposite therewith during installation.

In addition to the implementation, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. a propelling pencil is cut, comprise fuselage cover (5), bonnet (2), protecgulum (7), spiral cutter head (8), protecgulum (7) is provided with pencil insertion hole (13), be provided with spiral cutter head (8) in the pencil insertion hole (13), pencil insertion hole (13) below is provided with dustbin (14), it is characterized in that: described bonnet (2) is provided with crank handle (1), crank handle (1) links to each other with spiral cutter head (8) by unidirectional manual setter (10), crank handle (1) links to each other with direct current generator (6) rotating shaft by ratchet (9) and motor output gear (4), and direct current generator (6) also is connected with power board (3).

2. propelling pencil according to claim 1 is cut, and it is characterized in that: bonnet (2) is provided with charging inlet (11) and start button (12).

3. propelling pencil according to claim 1 is cut, and it is characterized in that: described power board (3) comprises the startup delay circuit, cutting testing circuit, circuit for controlling motor.