CN213383663U

CN213383663U - Electric pencil sharpener

Info

Publication number: CN213383663U
Application number: CN202021745893.XU
Authority: CN
Inventors: 陈维成
Original assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Current assignee: Yiwu Dingbang Stationery And Sporting Goods Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-06-08
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses an electric pencil sharpener, which comprises a shell, a pencil sharpener, a motor and a transmission assembly, wherein the pencil sharpener, the motor and the transmission assembly are arranged in the shell, the pencil sharpener comprises a tool rest with a pencil inserting hole and a cutting blade, the cutting blade is fixed on the tool rest, and the motor drives the tool rest to rotate through the transmission assembly; the pencil sharpener has simple integral structure and smaller volume, thereby simplifying the process, reducing the manufacturing cost and being easy to be driven by a motor; in addition, the layout of all parts in the electric pencil sharpener can be optimized to reduce the whole volume, so that the electric pencil sharpener is convenient for a user to carry.

Description

Electric pencil sharpener

Technical Field

The utility model relates to a penknife for cutting the pencil especially relates to an electronic penknife.

Background

The pencil sharpener is a study or office article.

Early pencil sharpeners included a frame with an obliquely positioned blade, into which the pencil was inserted and which was sharpened by rotating the sharpener.

At present, the pencil sharpener is commonly used, and is classified by the power for driving the pencil sharpening mechanism, and can be divided into a hand pencil sharpener and an electric pencil sharpener.

The pencil sharpening mechanism comprises a gear ring, a tool rest and a hob, the hob rotates along with the tool rest to finish pencil sharpening, and the bulletin number of the electric pencil sharpener is 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 hobbing cutter of the existing electric pencil sharpener has complex manufacturing process and larger volume.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a novel electronic penknife is provided, adopt motor drive pencil sharpener's structural configuration, can reduce manufacturing process, and reduce the volume so that carry.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the electric pencil sharpener is characterized by comprising a shell, a pencil sharpener, a motor and a transmission assembly, wherein the pencil sharpener, the motor and the transmission assembly are arranged in the shell, the pencil sharpener comprises a tool rest with a pencil inserting hole and a cutting blade, the cutting blade is fixed on the tool rest, and the motor drives the tool rest to rotate through the transmission assembly.

The utility model discloses further preferred technical scheme does: the casing in be configured with the battery, the battery provide electric power for the motor.

The utility model discloses further preferred technical scheme does: the pencil sharpener is assembled in the shell in a separable structure so as to be convenient for replacement.

The utility model discloses further preferred technical scheme does: the shell is cylindrical, and the motor, the transmission assembly and the pencil sharpener are sequentially arranged in the shell along the length direction of the shell.

The utility model discloses further preferred technical scheme does: the transmission component is a speed reduction gear set.

The utility model discloses further preferred technical scheme does: the reduction gear set comprises at least one set of planet gears.

The utility model discloses further preferred technical scheme does: the battery is a disposable battery; or the battery is a rechargeable battery, and the shell is provided with a charging interface.

The utility model discloses further preferred technical scheme does: the end part of the cylindrical shell far away from the pencil sharpener is provided with a lighting lamp.

The utility model discloses further preferred technical scheme does: the side wall of the cylindrical shell is provided with a switch which slides along the consistent direction of the axis of the shell, and the switch controls the motor to move.

The utility model discloses further preferred technical scheme does: the shell is provided with heat dissipation holes for heat dissipation of the motor.

Compared with the prior art, the pencil sharpener has the advantages that the pencil sharpener comprises the sharpener frame with the pencil inserting hole and the cutting blade, the motor drives the sharpener frame to rotate through the transmission assembly, and then the cutting blade arranged on the sharpener frame is driven to cut a pencil; the pencil sharpener has simple integral structure and smaller volume, thereby simplifying the process, reducing the manufacturing cost and being easy to be driven by a motor; in addition, the layout of all parts in the electric pencil sharpener can be optimized to reduce the whole volume, so that the electric pencil sharpener is convenient for a user to carry.

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 explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. 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 schematic view of the internal structure of the electric pencil sharpener;

FIG. 3 is a schematic view of the electric pencil sharpener during pencil sharpening;

FIG. 4 is a cross-sectional view of the electric pencil sharpener during pencil sharpening;

FIG. 5 is a schematic view of the assembly of the components of the electric pencil sharpener;

FIG. 6 is a first schematic view of the pencil sharpening assembly and the pencil sharpening driving device;

FIG. 7 is a second schematic view of the pencil sharpening assembly and the pencil sharpening driving device;

FIG. 8 is a schematic view of a battery and a battery housing of the pencil sharpener;

FIG. 9 is a schematic view of the overall structure of the pencil sharpener;

FIG. 10 is a schematic structural view of the cover and the rotation support;

FIG. 11 is a schematic view of the overall structure of the linkage;

FIG. 12 is a schematic structural view of the upper barrel of the pencil sharpener;

FIG. 13 is a schematic view of the connecting seat;

FIG. 14 is a schematic view of a front sheath on the sharpener assembly;

FIG. 15 is a first schematic structural view of a transmission assembly;

fig. 16 is a structural schematic diagram of a transmission assembly.

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 invention.

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 4, the electric pencil sharpener 100 comprises a housing 10, a pencil sharpener 20, a motor 30 and a transmission assembly 40, wherein the pencil sharpener 20, the motor 30 and the transmission assembly 40 are arranged in the housing 10, the pencil sharpener 20 comprises a tool holder 22 with a pencil insertion hole 21 and a cutting blade 23, the cutting blade 23 is fixed on the tool holder 22, and the motor 30 drives the tool holder 22 to rotate through the transmission assembly 40.

The pencil sharpener in this embodiment uses the pencil sharpener 20 to replace the conventional hob assembly, so that the internal structure of the pencil sharpener is simplified and the production process is reduced. And the sharpener 20 is easily driven by the motor 30 because of its small size and light weight. Of course, those skilled in the art can also optimize the hob structure to fit into the present embodiment, and the use of the hob structure or the pencil sharpener does not limit the overall protection scope of the pencil sharpener in the present embodiment.

Specifically, as shown in fig. 9, the pencil sharpener 20 comprises a sharpener frame 22 having a pencil insertion hole 21 and a cutting blade 23, and a motor 30 drives the sharpener frame 22 to rotate through a transmission assembly 40, and then drives the cutting blade 23 mounted on the sharpener frame 22 to cut a pencil; the pencil sharpener 20 has a simple overall structure and a small volume, so that the process can be simplified to reduce the manufacturing cost, and is easily driven by the motor 30; in addition, the layout of the components inside the electric pencil sharpener 100 can be optimized to reduce the overall volume, thereby facilitating the portability of the user.

A battery 50 is disposed within the housing 10, the battery 50 providing power to the motor 30. Preferably, the battery 50 in this embodiment may be a disposable battery or a rechargeable battery. When the battery 50 is a rechargeable battery, a charging interface is correspondingly disposed on the housing 10.

The sharpener 20 is assembled in the housing 10 in a separable structure to facilitate replacement. It should be noted that the pencil sharpener 20 of the present embodiment is provided with at least two, and the pencil sharpener 20 is detachably mounted in the receiving cavity of the housing 10, so as to replace the worn pencil sharpener 20. Thereby ensuring the efficiency and quality of pencil sharpening.

The housing 10 is cylindrical, and the motor 30, the transmission assembly 40 and the sharpener 20 are sequentially disposed in the cylindrical housing 10 in a length direction of the housing 10. The technical means makes the whole shape of the pencil sharpener in a simple cylindrical structure; the volume of the pencil sharpener is optimized, and the traditional appearance of the pencil sharpener is further changed, so that the pencil sharpener is convenient for a user to carry.

More preferably, the cylindrical housing 10 in this embodiment has a diameter/length in the range of 1/3-1/10. And the diameter of the cylindrical housing 10 is 20-30 mm and the length of the cylindrical housing 10 is 90-200 mm.

The transmission assembly 40 is a reduction gear set. And the reduction gear set includes at least one set of planet gears 90. The planetary gear 90 will be described in detail below.

The end of the cylindrical housing 10 remote from the sharpener 20 is provided with an illumination lamp 60. The illumination lamp 60 is disposed on the housing 10 to provide illumination, and the battery 50 provides power supply for the pencil sharpener driving device 300 and the illumination lamp 60.

Preferably, as shown in fig. 1-4, the sharpener assembly 200 is located adjacent the a end of the housing 10 and the lamp 60 is located on the B end of the housing 10.

An illumination lamp 60 powered by the battery 50 is arranged on the housing 10 to achieve an illumination effect; the electric pencil sharpener 100 integrates the lighting function into the pencil sharpener so that the user can smoothly align and insert the pencil into the housing to be sharpened even in a dark surrounding environment.

Preferably, the illumination lamp 60 in the present embodiment is an LED lamp.

Preferably, in the present embodiment, as shown in fig. 1, the housing 10 is provided with a heat dissipation hole p for dissipating heat of the motor 30. The peripheral side wall of the cylindrical housing 10 is provided with a switch k which slides along the same direction of the axis of the housing 10, and the switch k controls the motor 30 to move. When the user slides the switch k forward, the motor 30 is started to make the pencil sharpener perform the work of sharpening the pencil; the LED lamp is controlled to light up when the user slides the switch k backward.

In another aspect, the electric pencil sharpener 100 of the present embodiment includes a pencil sharpening assembly 200 and a pencil sharpening driving device 300 for driving the pencil sharpening assembly 200.

As shown in fig. 5 to 8, the pencil sharpening assembly 200 includes a pencil sharpener 20, a pencil sharpening sleeve 70 and a linkage member 01 connected to the transmission assembly 40, the pencil sharpener 20 is accommodated and fixed in an inner cavity of the pencil sharpening sleeve 70, one end of the pencil sharpening sleeve 70 is provided with a rotation supporting portion 02, the other end of the pencil sharpening sleeve 70 is connected to the linkage member 01, and the transmission assembly 40 drives the pencil sharpener 20 in the pencil sharpening sleeve 70 to rotate through the linkage member 01.

The transmission assembly 40 on the pencil sharpener drives the pencil sharpening sleeve 70 to rotate through the linkage 01, and then drives the pencil sharpener 20 arranged in the inner cavity of the pencil sharpening sleeve 70 to rotate so as to cut a pencil; and one end of the pencil sharpening sleeve 70 is provided with a rotation support portion 02 so that one end of the pencil sharpening sleeve 70 having a certain length is supported, thereby improving the stability of the pencil sharpening sleeve 70 when rotating.

As shown in fig. 10, the pencil sharpening sleeve 70 includes a barrel 71 having an opening 72 at one end and a cover 73 closing the opening 72, a first pencil feeding hole 03 is formed in the center of the cover 73, the rotation support portion 02 is located outside the cover 73, and the other end of the barrel 71 is connected to the front end surface of the linkage member 01 through a positioning structure.

As shown in fig. 11 and 12, the positioning structure is a concave-convex structure respectively arranged at the other end of the cylinder 71 and the front end face of the link 01. Specifically, a positioning groove v2 is formed on the front end surface of the linkage member 01, correspondingly, a positioning protrusion v1 is formed on the other end of the cylinder 71, and the cylinder 71 can rotate along with the linkage member 01 after the positioning groove v2 and the positioning protrusion v1 are fixedly clamped. When the motor 30 drives the transmission assembly 40 to drive the linkage member 01 to rotate, the pencil sharpening sleeve 70 is controlled to rotate, and finally the pencil sharpener 20 in the accommodating cavity of the pencil sharpening sleeve 70 cuts the pencil.

The pencil sharpening assembly 200 further includes a front sheath 04, and a front end surface of the front sheath 04 is provided with a front pencil insertion hole 04a into which the rotation support 02 is inserted to provide a support point.

The pencil sharpening assembly 200 further comprises a connecting seat 05 which is through in the middle, the front sheath 04 is fixedly connected with the connecting seat 05, and the other end of the pencil sharpening sleeve 70 is located in the connecting seat 05. That is, the pencil sharpening sleeve 70 in this embodiment has support points at both ends to stabilize the pencil sharpener during the sharpening operation.

As shown in fig. 13 and 14, a rotary positioning structure is provided between the inner wall of the rear end of the front sheath 04 of the pencil sharpening assembly 200 and the outer wall of the front end of the connecting seat 05. Specifically, the rotary positioning structure comprises an L-shaped groove x2 formed in the side wall of the connecting seat 05, and a protrusion x1 arranged on the inner wall of the rear end of the front sheath 04; the L-shaped recess x2 includes a long side slot and a short side slot, the short side slot including a larger opening. In actual installation, after the protrusion x1 is completely inserted inwards from the larger opening of the short side groove of the L-shaped groove x2, the two are relatively rotated by a certain angle, so that the protrusion x1 is clamped into the long side groove to fix the front sheath 04 and the connecting seat 05.

Preferably, the long side groove of the L-shaped groove x2 and the projection x1 are matched in size, and the short side groove of the long side groove is slender.

The sharpening sleeve 70 and the linkage member 01 are butted in the connecting seat 05.

As shown in fig. 15 and 16, the pencil sharpening driving device 300 includes a circular sleeve 301, a motor 30, and a transmission assembly 40 for connecting the motor 30 and the pencil sharpening assembly 200, wherein the transmission assembly 40 includes a driving gear 41 connected to an output shaft of the motor 30 and at least one set of planetary gears 90, the motor 30 is located at a rear section of the circular sleeve 301, the driving gear 41 is engaged with the planetary gears 90, and an inner wall of a front section of the circular sleeve 301 is provided with an inner tooth structure b matched with the planetary gears 90.

The planetary gear 90 drives the pencil sharpening assembly 200, so that the transmission assembly 40 is more compact, the volume of the driving device is reduced, and the whole volume of the electric pencil sharpener 100 is smaller, so that the electric pencil sharpener is convenient to carry.

Preferably, the sharpening drive 300 includes a two-stage planetary gear 90.

Specifically, the first-stage planetary gear 91 includes a gear seat c, a first gear c1 and a second gear c2 are provided on the back of the gear seat c, the first gear c1 and the second gear c2 are engaged with the middle driving gear 41, and the first gear c1 and the second gear c2 are simultaneously engaged with the internal tooth structure b on the inner wall of the circular sleeve 301.

The second-stage planetary gear 92 comprises a transition gear 42 arranged on the front surface of a gear seat c, and a third gear c3 and a fourth gear c4 arranged on the back surface of the linkage member 01, wherein the transition gear 42 is meshed with the third gear c3 and the fourth gear c4, and the third gear c3 and the fourth gear c4 are meshed with an internal tooth structure b.

The battery 50 is located within a battery housing 51. the battery housing 51 interfaces with and is coaxial with the circular sleeve 301.

The pencil sharpening sleeve 70 and the circular sleeve 301 are positioned on the same axis, so that the whole appearance of the pencil sharpener is of a connected and simple cylindrical structure, the whole structure is simple, the body is small, and the pencil sharpener is more convenient for a user to carry.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

It is right above the utility model provides an electric penknife has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping the assistant the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The electric pencil sharpener is characterized by comprising a shell, a pencil sharpener, a motor and a transmission assembly, wherein the pencil sharpener, the motor and the transmission assembly are arranged in the shell, the pencil sharpener comprises a tool rest with a pencil inserting hole and a cutting blade, the cutting blade is fixed on the tool rest, and the motor drives the tool rest to rotate through the transmission assembly.

2. The electric pencil sharpener of claim 1 wherein a battery is disposed in said housing, said battery providing power to said motor.

3. The electric sharpener of claim 1 wherein said sharpener is detachably mounted in said housing for easy replacement.

4. The electric pencil sharpener of claim 2 wherein said housing is cylindrical and said motor, drive assembly and pencil sharpener are sequentially disposed within said housing in a direction along the length of the housing.

5. The electric pencil sharpener of claim 1, wherein said drive assembly is a reduction gear set.

6. The electric pencil sharpener of claim 5 wherein said reduction gear set includes at least one set of planetary gears.

7. The electric pencil sharpener of claim 2 wherein said battery is a disposable battery; or the battery is a rechargeable battery, and the shell is provided with a charging interface.

8. An electric pencil sharpener as claimed in claim 4 wherein the end of the cylindrical housing remote from the sharpener is provided with a light.

9. The electric pencil sharpener of claim 4 wherein the peripheral side wall of the cylindrical housing has a switch that slides in a direction consistent with the axis of the housing, said switch controlling the movement of the motor.

10. The electric pencil sharpener of claim 1, wherein the housing has heat dissipation holes for dissipating heat of the motor.