CN215792887U

CN215792887U - Electric pencil sharpener

Info

Publication number: CN215792887U
Application number: CN202122223531.5U
Authority: CN
Inventors: 金响标
Original assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Current assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-11
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses an electric pencil sharpener, which comprises an upper cover, a scrap collecting box and a base, wherein the upper cover is rotatably provided with a pencil sharpener; the driving component drives the pencil sharpener to rotate, and the upper cover covers the scrap collecting box to close the upper opening; the upper cover is provided with a pencil inlet hole aligned with the pencil inserting hole of the pencil sharpener; the scrap collecting box comprises a transparent peripheral side wall and a scrap collecting cavity surrounded by the peripheral side wall, and the pencil sharpener is positioned in the scrap collecting cavity; the visibility in the pencil sharpener is improved, and a user can observe the condition of the pencil sharpener during pencil sharpening.

Description

Electric pencil sharpener

Technical Field

The utility model relates to a pencil sharpener for sharpening a pencil, in particular to an electric pencil sharpener.

Background

The pencil sharpener is a learning or office appliance, the core part of which is a pencil sharpening mechanism, comprising a gear ring, a tool rest and a hob, the hob rotates along with the tool rest to finish the cutting of a pencil, and the pencil sharpener is classified by the power driving the pencil sharpening mechanism and can be divided into a hand pencil sharpener and an electric pencil sharpener.

An electric pencil sharpener with the notice number of CN 206703798U; an electric pencil sharpener of CN 201333883Y;

an electric pencil sharpener with publication number CN210047247U discloses a main body, a scrap cover, a bottom cover, a knife rest, a motor and a transmission mechanism, wherein the motor drives the knife rest to rotate through the transmission mechanism.

The utility model discloses an electric pencil sharpener with the publication number of CN203888492U, and discloses a shell, a cutting knife, a motor and a transmission assembly, wherein the upper part of the shell is provided with a pencil feeding hole, the middle part of the shell is provided with a cutting collecting cavity, and the bottom of the shell is provided with the motor and the transmission assembly; the chip collecting cavity is provided with a cutting knife, and the pencil chips cut by the cutting knife are arranged in the chip collecting cavity.

The outer side wall of the existing chip collecting cavity is transparent, and a user can see pen chips in the chip collecting cavity; but other parts, such as a transmission gear, a battery and the like, are also arranged at the horizontal position of the chip collecting cavity; the inner wall in collection bits chamber needs to be set to concave-convex structure, clearance because of the structure, and a bits can block in inner wall and clearance, and a bits is difficult for empting totally.

SUMMERY OF THE UTILITY MODEL

In view of the problem that the pencil scraps are not easy to dump and clean in the prior art, the utility model provides an electric pencil sharpener with easy cleaning of pencil scraps.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the electric pencil sharpener is characterized by comprising an upper cover which is rotatably provided with a pencil sharpener, a scrap collecting box with an opening at the upper part and a base which is provided with a driving component;

the driving component drives the pencil sharpener to rotate, and the upper cover covers the scrap collecting box to close the upper opening;

the upper cover is provided with a pencil feeding hole aligned with the pencil inserting hole of the pencil sharpener;

the scrap collecting box comprises a transparent peripheral side wall and a scrap collecting cavity surrounded by the peripheral side wall, and the pencil sharpener is positioned in the scrap collecting cavity.

The further preferable technical scheme of the utility model is as follows: the pencil sharpener is located in the central region of the chip collection cavity.

The further preferable technical scheme of the utility model is as follows: the pencil sharpener is detachably arranged on the inner side of the pencil sharpener.

The further preferable technical scheme of the utility model is as follows: the driving assembly comprises a motor, a transmission gear and a floatable rotating shaft, and the motor drives the rotating shaft to rotate through the transmission gear.

The further preferable technical scheme of the utility model is as follows: the upper end of the rotating shaft is positioned at the bottom of the scrap collecting cavity, and the lower part of the pencil sharpener is provided with a connecting groove matched with the rotating shaft.

The further preferable technical scheme of the utility model is as follows: a microswitch capable of starting the motor to rotate is arranged at the lower part of the rotating shaft in the base, and an elastic piece is arranged between the upper cover and the pencil sharpener;

the pencil sharpener moves for a certain distance after being pressed by the pencil, and the lower end of the rotating shaft touches the micro switch to start the motor.

The further preferable technical scheme of the utility model is as follows: the motor is in a horizontal posture, the transmission gear comprises a worm, a worm wheel and a reduction gear which are arranged on an output shaft of the motor, and the final stage of the reduction gear is provided with the floatable rotating shaft.

The further preferable technical scheme of the utility model is as follows: the base is internally provided with a battery bin for transversely placing batteries.

The further preferable technical scheme of the utility model is as follows: the bottom of the chip collecting cavity is provided with a bottom plate, and the upper end of the rotating shaft extends out of the bottom plate to form a rotating salient point matched with the pencil sharpener connecting groove.

Another subject is: the electric pencil sharpener comprises an upper cover detachably provided with a pencil sharpener, a scrap collecting box with an opening at the upper part and a base provided with a driving assembly, wherein the pencil sharpener can rotate relative to the upper cover;

the driving assembly comprises a floatable rotating shaft, and a microswitch is arranged on the lower side of the rotating shaft;

the rotating shaft is connected with the lower end of the pencil sharpener, and the upper cover covers the scrap collecting box to seal the upper opening;

Compared with the prior art, the utility model has the advantages that the electric pencil sharpener comprises the upper cover provided with the pencil sharpener, the scrap collecting box and the base provided with the driving assembly, the driving assembly drives the pencil sharpener to rotate, and the upper cover covers the scrap collecting box to seal the upper opening of the scrap collecting box; wherein, collection bits box includes a transparent week lateral wall and by the collection bits chamber that the surrounding lateral wall encloses, and the pencil sharpener is located an album bits intracavity, improves the inside visuality of penknife, the condition when the user of being convenient for observes the pencil sharpener and cuts the pencil.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the utility model. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic view of the overall structure of an electric pencil sharpener;

FIG. 2 is a side sectional view of the electric pencil sharpener;

FIG. 3 is a first schematic view of the internal structure of the electric pencil sharpener;

FIG. 4 is a schematic view of the internal structure of the electric pencil sharpener;

FIG. 5 is a schematic view of a partial structure of the electric pencil sharpener;

FIG. 6 is a side sectional view of the electric pencil sharpener;

FIG. 7 is an exploded view of the electric pencil sharpener;

FIG. 8 is a schematic structural diagram of a base of the electric pencil sharpener;

FIG. 9 is an exploded view of the base of the electric pencil sharpener;

FIG. 10 is an enlarged view of a portion of the structure at A in FIG. 3;

fig. 11 is an enlarged view of a portion B of fig. 4.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the utility model.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

As shown in fig. 1 to 5, the electric pencil sharpener 100 includes an upper cover 10 equipped with a pencil sharpener 20, a dust collecting box 30, and a base 50 mounted with a driving assembly 40.

As shown in fig. 2 and 3, the upper cap 10 is provided with a pencil insertion hole k1 aligned with the pencil insertion hole k2 of the pencil sharpener 20. Preferably, the upper cover 10 includes a top wall and a peripheral side wall, the top wall is provided with a pen inlet hole k1 at a middle portion, and a guide ring wall extends downward from the top wall at a position of the pen inlet hole k1, and the guide ring wall is surrounded by the pen inlet hole k 1.

As shown in fig. 7 to 9, the driving assembly 40 includes a motor 41, a worm 42, a worm wheel 43, and a plurality of sets of reduction gears a; the sharpener 20 is rotatably assembled inside the upper cover 10; the last group of reduction gears a is provided with a rotating shaft a6 which extends longitudinally and can float up and down.

In the case of the rotatable sharpener 20, the sharpener 20 is driven by the driving assembly 40 to rotate, so as to sharpen the pencil. The worm 43 on the driving assembly 40 is connected with the output shaft a5 of the motor 41, and the worm wheel 42 is matched with the worm 43; therefore, a driving relationship of mutual cooperation is formed, the motor 41 is in a lying posture, on one hand, noise and vibration generated by the work of the motor 41 can be reduced, on the other hand, the layout of the driving assembly 40 can be optimized, and therefore the space of the base 50 occupied by the whole driving assembly 40 is reduced.

In addition, as shown in fig. 9, the reduction gear a in the present embodiment includes a first gear a1 coaxial with the worm wheel 42, a second gear a2 and a third gear a3 coaxial therewith, and a fourth gear a4 provided with a rotation shaft a6 in the middle; the fourth gear a4 and the rotating shaft a6 can move in a limited amplitude in the axial direction; the first gear a1 meshes with the second gear a2, and the third gear a3 meshes with the fourth gear a 4. After the motor 41 is started, the worm 43 and the worm wheel 42 are engaged with each other to further drive the reduction gear a in sequence.

With respect to the base 50, a longitudinal positioning groove 51 is provided in the base 50, and the rotation axis a6 is provided in the longitudinal positioning groove 51. A battery compartment 52 is provided in the base 50, and the battery compartment 52 is used for accommodating a battery assembly, which may be a rechargeable battery.

A micro switch 60 connected to the motor 41 is provided at the bottom of the longitudinal positioning groove 52, and the rotation shaft a6 touches the micro switch 60 when it is downward. Activation of the microswitch 60 causes the motor 41 to start, which in turn drives the drive assembly 40 further.

For the chip collecting box 30, the chip collecting box 30 includes a transparent peripheral sidewall 31 and a chip collecting cavity 32 surrounded by the peripheral sidewall 31, and the pencil sharpener 20 is located in the chip collecting cavity 30. The chip collecting box 30 having the transparent peripheral wall 31 can improve visibility inside the sharpener. When the user is cutting the pencil, the condition that the pencil sharpener 20 cuts the pencil can be observed more intuitively.

The bottom of the dust collecting cavity 30 is provided with a bottom plate 34, and the upper end of the rotating shaft a6 extends out of the bottom plate 34 to form a rotating salient point t matched with the connecting groove 22 of the pencil sharpener 20. The rotation protrusion t is connected to a connection groove 22 at the lower end of the sharpener 20. So that when the rotation shaft a6 rotates, the pencil sharpener 20 is driven to rotate, and then cutting work is performed.

It should be noted that the sharpener 20 of the present embodiment is detachably mounted inside the upper cover 10 for user replacement or maintenance. When the sharpener 20 needs to be replaced, the upper cover 10 is opened to take out the sharpener 20, and then the sharpener 20 can be detached from the upper cover 10. Preferably, the sharpener 20 is mounted inside the upper cap 10 by means of a snap fit structure, a screw structure, or the like.

The present invention is intended to illustrate that the base 50 of the electric pencil sharpener 100 is provided with the driving assembly 40, the driving assembly 40 comprises the motor 41, the worm 43, the worm wheel 42 and the reduction gear a which are mutually matched to form a driving relationship, the motor 41 in the driving assembly 40 is in a horizontal state, on one hand, noise and vibration generated by the operation of the motor 41 can be reduced, on the other hand, the layout of the driving assembly 40 can be optimized, so that the space of the base 50 occupied by the whole driving assembly 40 is reduced.

Preferably, the sharpener 20 of the present embodiment is vertically floatable with respect to the upper cover 10. In practical use, a user applies a certain external force to insert a pencil into the sharpener 20, so as to drive the sharpener 20 to move downward for a certain distance, and further drive the rotation shaft a6 connected with the sharpener 20 to move downward, and the rotation shaft a6 touches the micro switch 60 when moving downward. Activation of the microswitch 60 causes the motor 41 to start, which in turn drives the drive assembly 40 further.

After the pencil is cut, the user takes out the pencil upward, and the external force applied to the sharpener 20 is removed, so that the rotation shaft a6 floats, the micro switch 60 returns to the initial state, and the motor 41 stops operating. Therefore, the on-off switching of the electric pencil sharpener 100 in the process of sharpening the pencil is more flexible and intelligent.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.

The above detailed description of the electric pencil sharpener provided by the present invention is provided, and the principle and the implementation of the present invention are explained by using specific examples, and the above description of the embodiments is only used to help the present invention and the core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The electric pencil sharpener is characterized by comprising an upper cover which is rotatably provided with a pencil sharpener, a scrap collecting box with an opening at the upper part and a base which is provided with a driving component;

2. The electric sharpener of claim 1, wherein the sharpener is located in a central region of the chip collection chamber.

3. The electric pencil sharpener of claim 1 wherein the sharpener is removably mounted inside the sharpener.

4. The electric pencil sharpener of claim 1 wherein said drive assembly includes a motor, a drive gear and a floatable rotatable shaft, said motor driving said rotatable shaft for rotation via said drive gear.

5. The electric pencil sharpener of claim 4, wherein the upper end of the rotating shaft is located at the bottom of the chip collecting chamber, and the lower portion of the pencil sharpener is provided with a connecting groove engaged with the rotating shaft.

6. The electric pencil sharpener according to claim 5, wherein a micro switch for starting the rotation of the motor is provided at the lower part of the rotating shaft in the base, and an elastic member is provided between the upper cover and the pencil sharpener;

7. The electric pencil sharpener of claim 4, wherein said motor is in a recumbent position, said drive gear comprises a worm, a worm gear and a reduction gear provided on an output shaft of said motor, and a final stage of said reduction gear is provided with said rotary shaft which is floatable.

8. The electric pencil sharpener of claim 1, wherein a battery compartment for placing batteries transversely is provided in the base.

9. The electric pencil sharpener as claimed in claim 5, wherein a bottom plate is provided at the bottom of said chip collecting chamber, and the upper end of said rotary shaft extends out of said bottom plate to form a rotary protrusion for engaging with the coupling groove of the pencil sharpener.

10. The electric pencil sharpener is characterized by comprising an upper cover, a scrap collecting box and a base, wherein the upper cover is detachably provided with a pencil sharpener;