CN212267093U - Pencil sharpener - Google Patents

Abstract

The utility model provides a pencil sharpener, includes casing, dirt box and installs the knife rest assembly in the casing, its characterized in that: the upper end face of the shell is provided with an adjusting disc corresponding to the position of the pen inserting hole, the adjusting disc is provided with at least two positioning holes which are matched with the pen inserting hole and can position pens with different pen shapes and diameters at intervals, and the adjusting disc is rotatably arranged on the shell and is provided with a rotating positioning structure between the adjusting disc and the shell. Has the advantages that: the pencil sharpener has the advantages that the structure is reasonable and compact, the pencil sharpener is very convenient to operate, the corresponding positioning holes can be selected for inserting and cutting pencils only by rotating the adjusting disc, the requirements for pencils with different diameters and pencils with different shapes can be met, the positioning is stable, the eccentricity is not prone to occurring, and therefore the smooth cutting and the core breaking are guaranteed; the dust box is divided into two parts, the box body is fixed, the box cover is movable, so that the pen scraps can be poured out only by opening the box cover when the pen scraps are poured out, the dust box is very convenient, the dust box is designed to be transparent, the volume of the pen scraps can be conveniently and visually seen, and the dust box is convenient to clean.

Description

Pencil sharpener

Technical Field

The utility model relates to a stationery, concretely relates to pencil sharpener.

Background

The pencil sharpener is popular among students as a pencil sharpening tool, generally comprises a main body, a pencil clamping mechanism, a knife rest and a rocker arm, when in use, a pencil is fixed by the pencil clamping mechanism, and the pencil can be sharpened by shaking the rocker arm by hands. The pencil hole of traditional sharpener often only has a round hole, when sharpening the pencil, inserts the pencil from the pencil hole and cuts, but it can only sell the cylindrical pencil of similar diameter, if the diameter is little a lot, or other non-cylindrical pencils just rock easily when using for receive the restriction in using.

According to the examination, the prior chinese patent "diameter-variable device of pencil sharpener" with patent number 201620047513.9 is arranged at the jack of the front panel of the pencil sharpener, the device is provided with a movable panel which is movably connected with the front panel, a plurality of positioning holes with different diameters are arranged on the movable panel, and any positioning hole can be positioned right opposite to the jack by moving the movable panel. This sharpener has the locating hole that three diameter is different, can satisfy the pencil of different diameters and cut, but its locating hole is the round hole, the cutting of other non-cylindrical pencils of being fit for that can not be fine to the structure of moving the panel is more complicated, and moves the panel and can stretch out the casing outside when removing, and is very pleasing to the eye.

Further, chinese patent No. 201820127859.2, "a dual-hole pencil sharpener", includes a tool holder, a cutter is mounted on the tool holder, the cutter is mounted on the tool holder through a cutter shaft, a transmission gear is fixedly connected to the cutter, two pencil insertion holes with different diameters are provided on the tool holder, pencil sharpening holes are respectively provided on hole walls of the two pencil insertion holes, and the transmission gear has different diameters for correspondingly sharpening pencils with different lengths. This structure has set up two kinds of pencil holes of cutting that the aperture size is different on a knife rest, can adapt to the cutting demand of the pencil that the thickness is different, but it cuts a hole and also is the round hole, can not be fit for the cutting of other non-cylindrical pencils, and the structure is more complicated simultaneously, and the processing cost is also higher.

In addition, the dust box of the existing pencil sharpener is often arranged on one side of the pencil sharpener, and when dust is poured, pencil chips are poured out by moving the whole dust box, but the phenomenon that the pencil chips leak out is often caused in the process of moving the dust box out.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a pencil sharpener that has reasonable and compact structure, convenient operation, and is suitable for cutting pencils of different shapes and different thicknesses aiming at the technical current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a pencil sharpener, includes casing, dirt box and installs the knife rest assembly in the casing, its characterized in that: the upper end face of the shell is provided with an adjusting disc corresponding to the position of the pen inserting hole, the adjusting disc is provided with at least two positioning holes which are matched with the pen inserting hole and can position pens with different pen shapes and diameters at intervals, and the adjusting disc is rotatably arranged on the shell and is provided with a rotating positioning structure between the adjusting disc and the shell.

As the improvement, the adjusting disk is the dome column structure, and the up end of casing is equipped with the circular cavity that supplies the adjusting disk to put into corresponding to the position in inserting a hole, and the middle part of circular cavity is equipped with a circular boss, and the central point of circular boss puts and is equipped with a shaft hole, and the hole of inserting a pen is located between the shaft hole of circular boss and the outer wall, and the lower terminal surface central point of adjusting disk puts the protruding pivot that is equipped with of correspondence, and the adjusting disk rotationally covers through the cooperation in pivot and shaft hole and establishes on circular boss.

And the improvement is carried out, the height of the circular boss is lower than the upper end face of the shell, a lower end placing and rotating annular groove for the adjusting disc is formed between the outer wall of the circular boss and the inner wall of the circular cavity, a convex edge extending outwards is arranged at the lower end of the adjusting disc, a stop block for limiting the convex edge is arranged on the wall face of the annular groove in a protruding mode at intervals in the circumferential direction, and a positioning groove for clamping and rotating the convex edge is formed between the lower end of the stop block and the bottom face of the annular groove.

Furthermore, the locating hole is three, and the up end of adjustment disk is protruding to be equipped with the cross muscle of being convenient for manual operation, and the locating hole is seted up between the adjacent rib of cross muscle, and the shape of locating hole is circular port, hexagonal hole and triangle cambered surface hole.

Still further, the rotation positioning structure specifically comprises: the annular inner wall of the adjusting disc is provided with at least two gear grooves for rotary positioning at the positions corresponding to the cross ribs in an annular and uniform-interval concave mode, the outer wall surface of the circular boss of the shell is provided with corresponding elastic clamping points, and the adjusting disc is in rotary positioning with the shell through the matching of the gear grooves and the elastic clamping points.

Furthermore, the dust box comprises a box body and a box cover, the box body is a transparent box with an opening at the upper end, the box body is fixedly arranged on the front side of the shell, and the box cover is slidably arranged on the box body and detachably connected with the shell.

And furthermore, two sides of an opening at the upper end of the box body are provided with lateral U-shaped sliding guide rails, two sides at the lower end of the box cover are inwards folded to form strip-shaped folded edges matched with the sliding guide rails, and the box cover is arranged on the box body in a sliding mode through the matching of the strip-shaped folded edges and the sliding guide rails.

Still further, the inner end shaping of lid is for the concave arc surface that cooperatees with the casing, at the protruding buckle that is equipped with in the upper end middle part of concave arc surface, is equipped with the card hole that supplies the buckle to insert and joint on the involution face of casing, and the lid passes through the buckle and blocks the cooperation in hole and casing joint, and the up end of lid flushes with the casing is smooth, and the lateral surface of lid flushes with the box body is smooth.

And finally, the box cover is a transparent cover, and the upper end face of the box cover is provided with a convex rib which is convenient for manually pressing the box cover to separate the buckle from the clamping hole.

Compared with the prior art, the utility model has the advantages of: when the pencil sharpener is used, the pencil can be inserted for sharpening as long as the adjusting disc is rotated to align the positioning hole with the pencil inserting hole, and pencils with different diameters and different pencil shapes can be stably positioned and are not easy to be eccentric, so that the sharpening is ensured to be smooth and the core is not easy to break; the dust box is divided into two parts, the box body is fixed, the box cover is movable, so that the pen scraps can be poured out only by opening the box cover when the pen scraps are poured out, the dust box is very convenient, the dust box is designed to be transparent, the volume of the pen scraps can be conveniently and visually seen, and the dust box is convenient to clean. The utility model discloses compactness rational in infrastructure, it is very convenient to operate, only needs the locating hole that the rotary regulating dish just can select to correspond to insert a cutting, not only can satisfy the pencil of different diameters, still can satisfy the pencil use of different shapes.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of the open state of the adjustment disk;

FIG. 4 is a partial cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 6 is an exploded view of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, a pencil sharpener comprises a housing 1, a dust box 2, an adjusting disc 3 and a tool rest assembly installed in the housing 1, wherein the adjusting disc 3 is arranged on the upper end surface of the housing 1 at a position corresponding to a pencil insertion hole 112, at least two positioning holes 31 which are matched with the pencil insertion hole 112 and can position pens with different strokes and diameters are arranged on the adjusting disc 3 at intervals in the circumferential direction, and the adjusting disc 3 is rotatably arranged on the housing 1 and is provided with a rotary positioning structure with the housing 1;

the concrete structure is as follows: the adjusting disc 3 is of a round cover-shaped structure, a round concave cavity for placing the adjusting disc 3 is arranged at the position, corresponding to the pen inserting hole 112, of the upper end face of the shell 1, a round boss 11 is arranged in the middle of the round concave cavity, a shaft hole 111 is formed in the center of the round boss 11, the pen inserting hole 112 is located between the shaft hole 111 and the outer wall of the round boss 11, a corresponding rotating shaft 33 is convexly arranged at the center of the lower end face of the adjusting disc 3, and the adjusting disc 3 is rotatably covered on the round boss 11 through the matching of the rotating shaft 33 and the shaft hole 111; the height of the circular boss 11 is lower than that of the upper end face of the shell 1, an annular groove 12 for allowing the lower end of the adjusting disc 3 to be placed in and rotate is formed between the outer wall of the circular boss 11 and the inner wall of the circular concave cavity, a convex edge 34 extending outwards is arranged at the lower end of the adjusting disc 3, a stop block 13 for limiting the convex edge 34 is arranged on the wall face of the annular groove 12 in an annular protruding mode at intervals, a positioning groove for clamping and rotating the convex edge 34 is formed between the lower end of the stop block 13 and the bottom face of the annular groove 12, the number of the positioning holes 31 of the adjusting disc 3 is three, cross ribs 32 convenient for manual operation are arranged on the upper end face of the adjusting disc 3 in a protruding mode in the radial direction, the positioning holes 31 are arranged between adjacent ribs of the cross ribs 32, and the positioning;

the rotating and positioning structure specifically comprises: at least two gear grooves 35 for rotational positioning are annularly and uniformly arranged on the annular inner wall of the adjusting disc 3 at intervals corresponding to the cross ribs 32, corresponding elastic clamping points 113 are arranged on the outer wall surface of the circular boss 11 of the shell 1, the adjusting disc 3 is rotationally positioned with the shell 1 through the matching of the gear grooves 35 and the elastic clamping points 113, and during positioning, the positioning hole 31 and the pen inserting hole 112 are just aligned and coaxial, or the blank position blocks the pen inserting hole 112, so that pen scraps are not easy to leak out;

the dust box 2 comprises a box body 21 and a box cover 22, the box body 21 and the box cover 22 are both transparent, so that the amount of the pen scraps can be visually seen conveniently, wherein the box body 21 is fixedly arranged on the front side of the shell 1, the upper end of the box body 21 is opened, and the box cover 22 is slidably arranged on the box body 21 and is detachably connected with the shell 1; two sides of an opening at the upper end of the box body 21 are provided with lateral U-shaped sliding guide rails 211, two sides at the lower end of the box cover 22 are inwards folded to form strip-shaped folding edges 222 matched with the sliding guide rails 211, and the box cover 22 is slidably arranged on the box body 1 through the matching of the strip-shaped folding edges 222 and the sliding guide rails 211; the inner end shaping of lid 22 is for cooperating with casing 1 indent cambered surface, protruding buckle 223 that is equipped with in the upper end middle part of indent cambered surface, be equipped with on the involution face of casing 1 with buckle 223 complex card hole 14, lid 22 passes through buckle 223 and the cooperation and the casing 1 looks joint in card hole 14, the up end of lid 22 is equipped with the protruding muscle 221 that is convenient for manually press the lid 22 to make buckle 223 break away from with card hole 14, the up end of lid 22 flushes with casing 1 is smooth, the lateral surface and the box body 21 of lid 22 smoothly flush.

When the pencil sharpener is used, the corresponding positioning hole 31 is selected according to the shape and the diameter of the pencil, the adjusting disc 3 is rotated, the positioning hole 31 is aligned with the pencil inserting hole 112, and the pencil can be inserted for sharpening; when the amount of the pen scraps in the dust box 2 is large, the convex rib 221 of the box cover 22 can be pressed downwards, the buckle 223 of the box cover 22 is separated from the clamping hole 14 of the shell 1, the box cover 22 can be moved outwards to slide out and take down, the pen scraps in the box body 21 can be directly poured out, and the pen scraps can be cleaned very conveniently.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a pencil sharpener, includes casing (1), dirt box (2) and installs the knife rest assembly in casing (1), its characterized in that: the upper end face of the shell (1) is provided with an adjusting disc (3) corresponding to the position of the pen inserting hole (112), at least two positioning holes (31) which are matched with the pen inserting hole (112) and can position pens with different pen shapes and diameters are arranged on the adjusting disc (3) at intervals in the circumferential direction, and the adjusting disc (3) is rotatably arranged on the shell (1) and is provided with a rotating positioning structure between the adjusting disc and the shell (1).

2. The sharpener of claim 1 wherein: adjusting disk (3) are dome column structure, the up end of casing (1) is equipped with the circular cavity that supplies the adjusting disk to put into corresponding to the position of inserting a hole (112), the middle part of circular cavity is equipped with a circular boss (11), the central point of circular boss (11) puts and is equipped with a shaft hole (111), insert a hole (112) and be located between shaft hole (111) and the outer wall of circular boss (11), the protruding pivot (33) that are equipped with of lower terminal surface central point of adjusting disk (3) correspondence, adjusting disk (3) rotationally cover through the cooperation of pivot (33) and shaft hole (111) and establish on circular boss (11).

3. The sharpener of claim 2, wherein: the high up end that is less than casing (1) of circular boss (11), the lower extreme that forms between the outer wall of circular boss (11) and the inner wall of circular cavity and supply adjusting disk (3) puts into and pivoted annular groove (12), the lower extreme of adjusting disk (3) is equipped with protruding edge (34) of outside extension, the protruding dog (13) that carry out spacing to protruding edge (34) that are equipped with of annular groove (12) wall upper ring interval, form between the lower extreme of dog (13) and the bottom surface of annular groove (12) and supply protruding edge (34) card to go into and pivoted constant head tank.

4. The sharpener of claim 3, wherein: the locating hole (31) are three, the upper end face of the adjusting disc (3) is radially and convexly provided with a cross rib (32) convenient for manual operation, the locating hole (31) is arranged between adjacent ribs of the cross rib (32), and the locating hole (31) is in the shape of a circular hole, a hexagonal hole and a triangular cambered surface hole.

5. The sharpener of claim 4, wherein: the rotation positioning structure specifically comprises: the annular inner wall of the adjusting disc (3) is provided with at least two gear grooves (35) corresponding to the cross ribs (32) at the annular and uniform interval in a concave manner, the outer wall surface of the circular boss (11) of the shell (1) is provided with corresponding elastic clamping points (113), and the adjusting disc (3) is rotationally positioned with the shell (1) through the matching of the gear grooves (35) and the elastic clamping points (113).

6. The sharpener of any one of claims 1-5 wherein: the dust box (2) comprises a box body (21) and a box cover (22), the box body (21) is a transparent box with an opening at the upper end, the box body (21) is fixedly arranged on the front side of the shell (1), and the box cover (22) is slidably arranged on the box body (21) and detachably connected with the shell (1).

7. The sharpener of claim 6, wherein: two sides of an opening at the upper end of the box body (21) are provided with lateral U-shaped sliding guide rails (211), two sides at the lower end of the box cover (22) are inwards folded to form strip-shaped folding edges (222) matched with the sliding guide rails (211), and the box cover (22) is slidably arranged on the box body (21) through the matching of the strip-shaped folding edges (222) and the sliding guide rails (211).

8. The sharpener of claim 7, wherein: the inner end shaping of lid (22) is for cooperating the indent cambered surface with casing (1), at the protruding buckle (223) that is equipped with in the upper end middle part of indent cambered surface, be equipped with on the involution face of casing (1) and supply buckle (223) to insert card hole (14) of joint, lid (22) are through buckle (223) and the cooperation and casing (1) looks joint in card hole (14), the up end of lid (22) flushes with casing (1) is smooth, the lateral surface and box body (21) of lid (22) smooth flush.

9. The sharpener of claim 8 wherein: the box cover (22) is a transparent cover, and the upper end face of the box cover (22) is provided with a convex rib (221) which is convenient for manually pressing the box cover (22) to separate the buckle (223) from the clamping hole (14).

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