CN209987648U

CN209987648U - Pencil sharpener

Info

Publication number: CN209987648U
Application number: CN201920818212.9U
Authority: CN
Inventors: 韩菲
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-01-24
Anticipated expiration: 2029-05-31

Abstract

The utility model provides a pencil sharpener relates to learning tools technical field, has solved the blade that exists among the prior art and has cut the pencil and not only inefficiency but also have the potential safety hazard technical problem still unhygienic. The device comprises a first shell, a second shell, a first cutter and a second cutter, wherein the second shell is slidably connected with the first shell, the first cutter is arranged in the first shell, the second cutter is arranged in the second shell, a circular truncated cone-shaped cutter channel is formed between the first cutter and the first shell, one end of the circular truncated cone-shaped cutter channel is an inlet, the other end of the circular truncated cone-shaped cutter channel is an outlet, a rectangular cutter channel coaxial with the circular truncated cone-shaped cutter channel is arranged on the second shell, the second cutter is arranged at a position, close to one end of the outlet, of the rectangular cutter channel, and a cutter edge of the second cutter faces the outlet. The utility model is used for cut the pencil of answer sheet, can directly cut the pencil into rectangle (both duckbilled type) to be convenient for the student directly uses and scribbles the answer sheet.

Description

Pencil sharpener

Technical Field

The utility model belongs to the technical field of learning tools technique and specifically relates to a pencil sharpener is related to.

Background

In the daily study of students, the use of pencil is indispensable, consequently, it is a comparatively loaded down with trivial details problem to cut the pencil, the problem of the pencil of sharpening the tip shape that the appearance of sharpener just solved, but the pencil lead of scribbling and filling up the answer sheet generally need be the rectangle form, completion that just can be fine is filled up, there is not the sharpener that directly cuts the pencil lead into the rectangle shape among the prior art yet, wantonly needs the staff to cut the pencil, the pencil lead that uses the blade to cut is neither pleasing to the eye nor inefficiency, still has the potential safety hazard, the pencil bits that cut down simultaneously are also unhygienic.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pencil sharpener has solved the blade that exists among the prior art and has cut the pencil not only inefficiency but also has potential safety hazard technical problem still unhygienic. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pencil sharpener, including first casing, with but first casing sliding connection's second casing, setting are in inside first sharpener, the setting of first casing are in the inside second sharpener of second casing, first sharpener with form round platform shape sharpener passageway between the first casing, the one end of round platform shape sharpener passageway is imported, and the other end is the export, be provided with on the second casing with the coaxial rectangle sharpener passageway of round platform shape sharpener passageway, the second sharpener sets up rectangle sharpener passageway is close to the one end of export, the edge of a knife orientation of second sharpener the export.

Preferably, the direction of the edge of the second cutting knife is perpendicular to the outlet.

Preferably, a reset device is arranged between the first housing and the second housing.

Preferably, the return means is a spring.

Preferably, a pressing body is disposed on the second housing.

Preferably, the first shell is provided with a cylindrical channel, the second shell is a cylinder, the inner wall of the first shell is provided with a limiting groove, the outer wall of the second shell is provided with a limiting bulge, and when the second shell is arranged inside the cylindrical channel, the limiting bulge is located in the limiting groove.

Preferably, the first housing is provided with a rectangular channel, and the second housing is rectangular.

Preferably, a flip cover is arranged on the upper part of the first shell, and the first cutter is arranged on the truncated cone-shaped cutter channel and close to the flip cover.

Preferably, the first housing is a hollow structure.

Preferably, the first housing is made of transparent plastic.

The utility model provides a technical scheme, including first casing, with first casing slidable connection's second casing, set up in first sharpener inside the first casing, set up in the second sharpener inside the second casing, form round platform shape sharpener passageway between first sharpener and the first casing, the one end of round platform shape sharpener passageway is the import, and the other end is the export, be provided with on the second casing with the coaxial rectangle sharpener passageway of round platform shape sharpener passageway, the second sharpener sets up in the one end that rectangle sharpener passageway is close to the export, the edge of a knife of second sharpener is towards the export; the rectangular sharpener channel and the second sharpener can be arranged in a mode of directly cutting the pencil lead coming out from the truncated cone-shaped sharpener channel, so that the pencil lead is cut into a rectangle (a duckbilled shape), and the problems that the efficiency of sharpening the pencil by a blade is low, potential safety hazards exist and the pencil is not sanitary can be avoided.

The utility model discloses preferred technical scheme can also produce following technological effect at least: a reset device is arranged between the first shell and the second shell, and the reset device can restore the second shell to the original position after the second shell is pressed to finish cutting; the second shell is provided with a pressing body, and the pressing area can be increased by the arrangement of the pressing body; the first casing is provided with cylindrical passageway, the second casing is the cylinder, be provided with the spacing groove on the inner wall of first casing, be provided with spacing arch on the outer wall of second casing, work as the second casing sets up when cylindrical passageway is inside, spacing arch is located the spacing inslot, spacing arch and spacing groove set up can to the second casing restrict and avoid its rotation to cause the improper problem of cutting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a pencil sharpener provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of a cross section a-a of a pencil sharpener provided by an embodiment of the present invention.

Figure 1-first housing; 2-a second housing; 3-a first sharpener; 4-a second sharpener; 5-a truncated cone-shaped cutter channel; 501-inlet; 502-outlet; 6-a rectangular cutter channel; 7-a resetting device; 8-a pressing body; 9-a limiting groove; 10-limit bump.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The specific embodiment of the utility model provides a pencil sharpener, including first casing 1, second casing 2, first sharpener 3, second sharpener 4, second casing 2 is slidably arranged in first casing 1, first sharpener 3 is arranged in first casing 1, and forms circular truncated cone-shaped sharpener passageway 5 with first casing 1, circular truncated cone-shaped sharpener passageway 5 one section is import 501, the other end is export 502, in order to sharpen the crust of the pencil, leave complete pencil lead, therefore can design the diameter of export 502 department of circular truncated cone-shaped sharpener passageway 5 into the diameter of pencil lead, thereby can cut out complete pencil lead, second casing 2 is inside to be provided with rectangle sharpener passageway 6, and rectangle sharpener passageway 6 and circular truncated cone-shaped sharpener passageway 5 are coaxial, second sharpener 4 is arranged on rectangle sharpener passageway 6 and is close to the one end of export 502, the edge of second sharpener 4 faces export 502, be used for cutting the pencil lead that export 502 came out, second sharpener 4 can design for two and parallel settings on the port of rectangle sharpener passageway 6 simultaneously, two second sharpeners 4 are gone out at the port of rectangle sharpener passageway 6 and are formed rectangular pencil lead import, can cut the both sides of columniform pencil lead this moment, can also set up 4 second sharpeners 4, and 4 second sharpeners 4 enclose into the rectangle, thereby can cut the pencil lead into the pencil lead that is close to the rectangle (both duckbilled type).

The direction of the knife edge of the second sharpener 4 is perpendicular to the outlet 502, and the knife edge is perpendicular to the pencil lead at the moment, so that the pencil lead can be stably cut directly, and the problem that the pencil lead is easy to break under the condition that the knife edge is inclined is solved.

The reset device 7 is arranged between the first shell 1 and the second shell 2, after the second shell 2 is pressed to complete rectangular pencil lead cutting, the second shell 2 which is pressed down is restored to an original state through the reset device 7, the reset device 7 can be a spring, the reset device 7 is arranged to be four and is uniformly distributed on axial contact surfaces of the second shell 2 and the first shell 1, the axial contact surfaces are the moving direction of the second shell 2, and the reset device 7 is symmetrically arranged.

The second housing 2 is provided with the pressing body 8, the pressing area can be increased by the arrangement of the pressing body 8, and the protruding pressing body 8 is more convenient to operate.

The second shell 2 can be designed into a cylinder shape, meanwhile, a cylindrical channel is arranged inside the first shell 1 and matched with the first shell, a limiting groove 9 is arranged on the side wall of the circular channel inside the first shell 1, the setting direction of the limiting groove 9 is the same as the moving direction of the second shell, a limiting protrusion 10 is arranged on the outer wall of the second shell 2, the limiting protrusion 10 and the limiting groove 9 can be designed into a semi-cylinder shape, when the second shell 2 is arranged inside the first shell 1, the limiting protrusion 10 is positioned inside the limiting groove 9, and the second shell 2 can slide along the direction of the limiting groove 9, so that the problem that the pencil lead is stressed unevenly and broken when the pencil lead is cut due to the fact that the second shell 2 rotates inside the first shell 1 can be avoided.

It is also possible to provide the first casing 1 with a rectangular passage inside and the second casing 2 with a rectangular structure, so that the second casing 2 can be directly restricted from rotating inside the first casing 1.

First casing 1 is hollow structure, the saw-dust that first sharpener 3 cut off can be temporarily stored inside first casing 1, upper portion at first casing 1 sets up flip, can open flip when inside saw-dust is too much to be stored and pour out inside residue, simultaneously with second casing 2 and first casing 1 detachable connection, second casing 2 also can be taken out under the condition that the residue appears in inside, pour out the back with inside residue again and install second casing 2 inside first casing 1, resetting means 7 can pass through the installation stand, fix it on first casing 1's inner wall, avoid resetting means 7 to take out at second casing 2 and break away from original position.

The first cutting knife 3 is arranged on the circular truncated cone-shaped cutting knife channel 5 at a position close to the turning cover, and at the moment, residues are discharged to a position close to the turning cover in the first cutting process, so that the residues can be poured out conveniently.

First casing 1 can adopt transparent plastic material to make, is convenient for observe the length that inside pencil cut to judge whether the cutting that need carry out the pencil lead, press the body 8 when observing to reach after cutting length, cut into the rectangle (both duckbilled) with the pencil lead through second sharpener 4 on the second casing 2.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A pencil sharpener is characterized by comprising a first shell (1), a second shell (2) connected with the first shell (1) in a sliding way, a first sharpener (3) arranged inside the first shell (1), and a second sharpener (4) arranged inside the second shell (2), a truncated cone-shaped cutting channel (5) is formed between the first cutting knife (3) and the first shell (1), one end of the truncated cone-shaped cutter channel (5) is an inlet (501), the other end is an outlet (502), a rectangular cutter channel (6) which is coaxial with the round table-shaped cutter channel (5) is arranged on the second shell (2), the second cutter (4) is arranged at one end of the rectangular cutter channel (6) close to the outlet (502), and the edge of the second cutter (4) faces the outlet (502).

2. The pencil sharpener of claim 1, characterized in that the direction of the edge of the second sharpener (4) is perpendicular to the outlet (502).

3. The pencil sharpener according to claim 1, characterized in that a reset device (7) is provided between the first housing (1) and the second housing (2).

4. A pencil sharpener according to claim 3, characterised in that the return means (7) is a spring.

5. The pencil sharpener according to claim 1, characterized in that a pressing body (8) is provided on the second housing (2).

6. The pencil sharpener of claim 1, wherein the first housing (1) is provided with a cylindrical channel, the second housing (2) is a cylinder, a limiting groove (9) is provided on an inner wall of the first housing (1), a limiting protrusion (10) is provided on an outer wall of the second housing (2), and when the second housing (2) is disposed inside the cylindrical channel, the limiting protrusion (10) is located in the limiting groove (9).

7. The pencil sharpener according to claim 1, characterized in that the first housing (1) is provided with a rectangular channel and the second housing (2) is rectangular.

8. The pencil sharpener according to claim 1, characterized in that the first housing (1) is provided at an upper portion thereof with a flip cover, and the first sharpener (3) is provided on the truncated cone shaped sharpener channel (5) at a position close to the flip cover.

9. The pencil sharpener of claim 1, characterized in that the first housing (1) is a hollow structure.

10. The pencil sharpener of claim 1, wherein the first housing (1) is made of transparent plastic.