CN102328540A

CN102328540A - Pencil sharpener

Info

Publication number: CN102328540A
Application number: CN201110263652A
Authority: CN
Inventors: 何建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-02
Filing date: 2011-09-02
Publication date: 2012-01-25
Anticipated expiration: 2031-09-02
Also published as: CN102328540B

Abstract

The invention relates to a pencil sharpener, which comprises a shell, wherein a pencil sharpening hole for accommodating a pencil is arranged inside the shell, a left sliding block and a right sliding block are arranged at two sides of the pencil sharpening hole, the left sliding block and the right sliding block are in a right trapezoid structure and are symmetrically arranged; a guide shaft which is horizontally arranged is arranged inside the shell; the left sliding block and the right sliding block are hollowly sleeved on the guide shaft; a pencil knife is respectively arranged at the inner side of the left sliding block and the right sliding block, and the outer side of the left sliding block and the outer side of the right sliding block butt against the shell through a pressure spring; a converter which can slip longitudinally to adjust the space between the left sliding block and the right sliding block is arranged in the shell, and the converter is in a conical structure and matched with the left sliding block and the right sliding block in a butting way; and a limiter is arranged in front of the pencil sharpening hole, and a gap for accommodating a pencil to be sharpened is arranged on the limiter. The pencil sharpener can be used for sharpening to form a duckbill refill, meets various requirement of using duckbill refills, such as card coating in written examination; time is saved when the pencil is used, therefore examination exertion is facilitated; and by moving and adjusting the converter, the thickness of the duckbill refill is adjustable.

Description

Pencil sharpener

(1) technical field

The invention belongs to the stationery field, particularly a kind of pencil sharpener.

(2) background technology

Existing pencil volume is generally hand cranking structure, and through hand, penknife constantly cuts the pencil of being sent into by pencil holding mechanism, up to the purpose of cutting wood pen holder and sharpening pen core.Though this type pencil volume is easy to use, cut an accurately continuous core of pen, can only cut out conical pen core, can't cut out the pen core of duck, requirement that can't dealing with various requirements use duck pen core occasion.

(3) summary of the invention

In order to solve the deficiency that existing pencil volume can not be cut out the duck pen core, the invention provides a kind of pencil sharpener, can cut out the pen core of duck through regulating, meet the demand that various needs use duck pen core occasion especially, practical, easy to use.

For this reason, the present invention takes following technical scheme:

A kind of pencil sharpener comprises housing, and said enclosure interior is provided with a hole of cutting that holds pencil; Said both sides of cutting a hole are provided with left slider and right slide block, the rectangular trapezium structure of said left and right sides slide block, symmetric arrangement; Be provided with the axis of guide of horizontal arrangement in the said housing; Said left and right sides slide block sky is enclosed within on the said axis of guide, and the inboard of said left and right sides slide block is provided with penknife, and the outside offsets through holddown spring and housing; But be furnished with the converter that straight skidding is regulated left and right sides slide block spacing in the said housing, said converter is positioned at the top of cutting a hole, is connected with housing top is movable, tapered structure, and with left and right sides slide block coupling, cooperation offsets; Said the place ahead of cutting a hole is provided with stop, and the adjacent penknife of said stop is arranged, is connected with housing top is movable, is provided with above the said stop and holds breach to be sharpened a pencil.

Be provided with dismountable waste material bucket in the said housing.

The said axis of guide has four, is arranged in parallel.

The corresponding guiding of said left and right sides slide block the tip of the axis is provided with breach, and an end of holddown spring is built in said breach.

Said surface of shell is provided with the scale of display converter displacement.

Said penknife is installed in the inside top of left and right slide block.

Be provided with in the said housing and cut the guide pipe that a hole is communicated with.

Said converter is connected with housing through housing pin.

The breach that holds pencil is arranged on the said stop, be " " shape.

Operation principle of the present invention is: 1, converter is divided into the 0-1 shelves according to the spacing of left and right sides slide block, transfers to converter the position of " 0 " shelves, and the spacing after left and right sides slide block closes up is minimum; Pencil is injected guide pipe; Will make the front end extruding slide block of pen when continuing to push inward pencil, slide block is slided to the left and right, simultaneously holddown spring compressed; Run into stop and can not push away forward again until the front end of pen; Just make when the post-tensioning pencil penknife imbed pencil then and begin cutting, and provide at holddown spring under the effect of elastic force penknife and pencil are close to, with the left and right both sides of the pencil part of pruning.Repeat said process, Propelling pencil just can be whittled into wedge to pencil (together with pen core).When the pen core length of exposing meets the requirements, just can stop, like this, the wedge of pencil has just been cut.In order to make the pencil-lead thickness of cutting out slightly thick, converter can be transferred to a certain position that " 1 " is arrived in " 0 "; 2, converter is transferred to the position of " 1 ", insert guide pipe to pencil, and around the axis of guide pipe rotation an angle of 90 degrees,, just can the wooden part of pencil pruned and kept the pen core part then through Propelling pencil.Through above-mentioned two steps, pencil is just cut out the pen core of duck.

Employing the present invention have the following advantages: 1, can cut out the pen core of duck, dealing with various requirements is used the requirement of duck pen core.For example, during the written examination card-coating, use this pencil now, can save time, being beneficial to the examination performance; 2, regulate converter through moving, the thickness of cutting out the duck pen core is adjustable; 3, because cutting structure is symmetrical, pencil is stressed evenly, can make pen core continuous.

(4) description of drawings

Fig. 1 is an overall structure sketch map of the present invention;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 2;

Fig. 4 is the sketch map of cutting back pencil.

(5) specific embodiment

With reference to Fig. 1-4, a kind of pencil sharpener comprises housing 1; Said enclosure interior be provided with hold pencil 13 cut a hole 2, said both sides of cutting a hole are provided with left slider 3 and right slide block 4, the rectangular trapezium structure of said left and right sides slide block; Symmetric arrangement is provided with the axis of guide 5 of horizontal arrangement in the said housing, said left and right sides slide block sky is enclosed within on the said axis of guide; The inboard of said left and right sides slide block is provided with penknife 6, and the outside offsets through holddown spring 7 and housing; But be furnished with the converter 8 that straight skidding is regulated left and right sides slide block spacing in the said housing, said converter is positioned at the top of cutting a hole, is connected with housing top is movable, tapered structure, and with left and right sides slide block coupling, cooperation offsets; Said the place ahead of cutting a hole is provided with stop 9; The adjacent penknife of said stop is arranged; Be connected with housing top is movable; Be provided with above and hold "

" v notch v 14 to be sharpened a pencil, breach and pencil are waited to cut the part contact position and are measured for cut at every turn to the fore-and-aft distance α of penknife point of a knife in the said stop.Be provided with dismountable waste material bucket 10 in the said housing.The said axis of guide has four, is arranged in parallel.The corresponding guiding of said left and right sides slide block the tip of the axis is provided with breach, and an end of holddown spring is built in said breach.Said surface of shell is provided with the scale of display converter displacement.Said penknife is installed in the inside top of left and right slide block.Be provided with in the said housing and cut the guide pipe 11 that a hole is communicated with.Said converter is connected with housing through housing pin 12.

Claims

1. a pencil sharpener comprises housing, and said enclosure interior is provided with a hole of cutting that holds pencil; It is characterized in that: said both sides of cutting a hole are provided with left slider and right slide block, the rectangular trapezium structure of said left and right sides slide block, symmetric arrangement; Be provided with the axis of guide of horizontal arrangement in the said housing; Said left and right sides slide block sky is enclosed within on the said axis of guide, and the inboard of said left and right sides slide block is provided with penknife, and the outside offsets through holddown spring and housing;

But be furnished with the converter that straight skidding is regulated left and right sides slide block spacing in the said housing, said converter is positioned at the top of cutting a hole, is connected with housing top is movable, tapered structure, and with left and right sides slide block coupling, cooperation offsets; Said the place ahead of cutting a hole is provided with stop, and the adjacent penknife of said stop is arranged, is connected with housing top is movable, is provided with above the said stop and holds breach to be sharpened a pencil.

2. pencil sharpener as claimed in claim 1 is characterized in that: be provided with dismountable waste material bucket in the said housing.

3. pencil sharpener as claimed in claim 2 is characterized in that: the said axis of guide has four, is arranged in parallel.

4. pencil sharpener as claimed in claim 3 is characterized in that: the corresponding guiding of said left and right sides slide block the tip of the axis is provided with breach, and an end of holddown spring is built in said breach.

5. pencil sharpener as claimed in claim 4 is characterized in that: said surface of shell is provided with the scale of display converter displacement.

6. pencil sharpener as claimed in claim 5 is characterized in that: said penknife is installed in the inside top of left and right slide block.

7. pencil sharpener as claimed in claim 6 is characterized in that: be provided with in the said housing and cut the guide pipe that a hole is communicated with.

8. pencil sharpener as claimed in claim 7 is characterized in that: said converter is connected with housing through housing pin.

9. pencil sharpener as claimed in claim 8; It is characterized in that: the breach that holds pencil is arranged on the said stop, be

shape.