CN212313153U

CN212313153U - Electric pencil sharpener

Info

Publication number: CN212313153U
Application number: CN202021079605.1U
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: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-01-08
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses an electric pencil sharpener, which comprises a shell, a trigger switch and an electric pencil sharpening mechanism, wherein the shell and the electric pencil sharpening mechanism are provided with a pencil feeding channel, the trigger switch and the electric pencil sharpening mechanism are positioned in the shell, the pencil feeding channel comprises a vertical pencil feeding hole arranged on a front panel of the shell, the trigger switch is positioned beside the pencil feeding channel, and the trigger switch is triggered by the insertion of a pencil to drive the electric pencil sharpening mechanism to operate; after a pencil to be cut is inserted into the pencil inlet channel from the vertical pencil inlet hole, the trigger switch positioned beside the pencil inlet channel is triggered by the inserted pencil, and then the triggered trigger switch drives the electric pencil cutting mechanism to operate, so that the pencil is cut.

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 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an automatic trigger formula's electronic penknife is provided, but the pencil carries out the smear metal to the pencil after inserting into a passageway auto-trigger cutting mechanism.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: electronic penknife, including casing, trigger switch and electronic mechanism of cutting, casing and electronic mechanism of cutting be equipped with into a passageway, trigger switch and electronic mechanism of cutting be located the casing in, the passageway of advancing include the vertical pen inlet hole of arranging on the front panel of casing, trigger switch be located the side of advancing a passageway, trigger switch receive the pencil and insert and trigger in order to drive electronic mechanism of cutting move.

The utility model discloses further preferred technical scheme does: the electric pencil sharpener further comprises an adjusting panel with a plurality of pencil inserting holes, the adjusting panel is located on the front side of the front panel, and the adjusting panel is moved to enable the selected pencil inserting holes in the adjusting panel to be aligned with the vertical pencil feeding holes in the front panel.

The utility model discloses further preferred technical scheme does: the trigger switch is a contact trigger switch or a non-contact trigger switch.

The utility model discloses further preferred technical scheme does: the electric pencil sharpening mechanism comprises a motor and a pencil sharpening mechanism driven by the motor.

The utility model discloses further preferred technical scheme does: the pencil sharpening mechanism comprises a gear ring seat, a cutter frame and a hob, wherein the hob is connected to the cutter frame, one end of the hob is meshed with internal teeth in the gear ring seat, and a motor is connected with the cutter frame through a speed reducer and a transmission gear.

The utility model discloses further preferred technical scheme does: a guide assembly is arranged between the adjusting panel and the front panel so that the adjusting panel can move on the front panel in a preset direction.

The utility model discloses further preferred technical scheme does: a positioning assembly is arranged between the adjusting panel and the front panel so as to position the selected pen inserting hole and align the selected pen inserting hole with the vertical pen feeding hole.

The utility model discloses further preferred technical scheme does: the trigger switch is movable, and the position of the trigger switch is adjusted so that the outer walls of the pencils with different outer diameters touch the trigger switch.

The utility model discloses further preferred technical scheme does: the front side of the shell is provided with a frame capable of containing the adjusting panel, and the frame limits the adjusting panel to be separated from the frame and the adjusting panel can move in the frame.

The utility model discloses further preferred technical scheme does: the detachable album bits box that is connected with in below of casing, collection bits box include bottom and week lateral wall, week lateral wall with the lower tip block of casing.

Compared with the prior art, the utility model has the advantages that the vertical hole of advancing of arranging on the front panel of casing, trigger switch are located the side of advancing a passageway, treat the pencil of cutting and insert to advancing a passageway back from vertical hole of advancing, and the trigger switch who is located into a passageway side can be triggered by the pencil of inserting, and the trigger switch after being triggered drives then and electronically cuts a mechanism operation to can cut 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 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 an overall structure of an electric pencil sharpener;

FIG. 2 is a schematic view of the overall structure of the electric pencil sharpener;

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

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

FIG. 5 is a first cross-sectional view of the electric pencil sharpener;

FIG. 6 is a schematic view of the internal structure of the electric pencil sharpener;

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

FIG. 8 is an enlarged view taken at A in FIG. 5;

fig. 9 is an enlarged view at B in fig. 6;

FIG. 10 is a second cross-sectional view of the electric pencil sharpener;

fig. 11 is an enlarged view at C in fig. 10;

FIG. 12 is a schematic view of a first bordering portion and a second bordering portion;

FIG. 13 is a schematic structural diagram of a trigger switch and a front panel;

FIG. 14 is a first schematic view of the adjustment panel, the frame and the housing;

fig. 15 is a second schematic view of the adjustment panel, the frame and the housing.

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 3 and 7, the electric pencil sharpener 100 includes a housing 10, a trigger switch 20 and an electric pencil sharpening mechanism 30, the housing 10 and the electric pencil sharpening mechanism 30 are provided with a pencil feeding channel 101, the trigger switch 20 and the electric pencil sharpening mechanism 30 are located in the housing 10, the pencil feeding channel 101 includes a vertical pencil feeding hole b1 arranged on a front panel 10b of the housing 10, the trigger switch 20 is located beside the pencil feeding channel 101, and the trigger switch 20 is triggered by insertion of a pencil to drive the electric pencil sharpening mechanism 30 to operate.

It should be noted that the electric pencil sharpening mechanism 30 is provided with a pencil feeding channel 101, the front panel 10b is provided with a vertical pencil feeding hole b1, and a pencil is inserted from the vertical pencil feeding hole b1 and then passes through the pencil feeding channel 101, so that the electric pencil sharpening mechanism 30 cuts the pencil.

As shown in fig. 1 to 3, the electric pencil sharpener 100 further comprises an adjustment panel 40 having a plurality of pencil insertion holes 41, the adjustment panel 40 being located at the front side of the front panel 10b, and moving the adjustment panel 40 to align a selected pencil insertion hole 41 of the adjustment panel 40 with the vertical pencil feeding hole b1 of the front panel 10 b.

As shown in fig. 14 and 15, it should be noted that, for the connection relationship between the adjusting panel 40 and the front panel 10b, a frame 11 is disposed at the front side of the front panel 10b and can accommodate the adjusting panel 40, the frame 11 limits the adjusting panel 40 from disengaging, and the adjusting panel 40 can move in the frame 11, and different positions of the adjusting panel 40 in the frame 11 can be adjusted, and one of the pen insertion holes 41 can be selected to correspond to the pen inlet hole b 1.

The frame 11 includes an annular member 11d bent inward, and an annular notch h is formed between the annular member 11d and the front panel 10b, and at least a part of the outer edge of the adjustment panel 40 is located in the annular notch h.

The upper surface of the adjustment panel 40 is flush with the upper surface of the bezel 11. So as to ensure that the surface formed by the adjusting panel 40 and the frame 11 is smooth and coherent, and has more integrity.

The trigger switch 20 is a contact type trigger switch or a non-contact type trigger switch. For a touch trigger switch, the specific scheme is as follows: as shown in fig. 5, 6, 8, 9 and 13, the trigger switch 20 includes a movable trigger 21 and a switch 22; when the movable trigger piece 21 touches the switch 22, the electric pencil sharpening mechanism 30 is started; when the movable trigger 21 leaves the switch 22, the electric pencil sharpening mechanism 30 is turned off. In actual operation, a pencil is inserted into the pencil feeding channel 101, the outer wall of the pencil is touched to displace the movable trigger 21 slightly to touch the switch 22, and then the electric pencil sharpening mechanism 30 is started to sharpen the pencil.

The trigger switch 20 is movable, and the position of the trigger switch 20 is adjusted so that the outer walls of pencils with different outer diameters touch the trigger switch 20.

More specifically, the cutting trigger system in this case includes a switch base 23 for mounting the trigger switch 20, a front panel 10b having a pen inlet hole b1, and an adjustment panel 40 having a pen insertion hole 41 with a different caliber, wherein the switch base 23 is located on the inner side of the front panel 10b, and the adjustment panel 40 is movably located on the outer side of the front panel 10 b.

When the adjusting panel 40 moves to align the selected pen inserting hole 41 into the pen channel 101, the position of the switch seat 23 is adaptively adjusted to enable the outer wall of the pencil with different outer diameter to trigger the trigger switch 20. The calibers of the pencil insertion holes 41 are different, so that a user can conveniently cut pencils with different thicknesses.

As shown in fig. 13 and 15, what needs to be further expanded for the adaptive adjustment of the position of the switch seat 23 is that an adjusting piece c1 is fixedly arranged on the switch seat 23, a waist-shaped adjusting hole c2 is arranged on the front panel 10b, a curved sliding chute c3 is arranged on the adjusting panel 40, the adjusting piece c1 penetrates through the waist-shaped adjusting hole c2 and extends into the curved sliding chute c3, and the switch seat 23 moves to different positions of the waist-shaped adjusting hole c2 along with the adjusting panel 40.

In the practical application process, three pen inserting holes 41 with different outer diameters are formed and are positioned on the same straight line; correspondingly, the curved sliding groove c3 comprises three groove positions which are not on the same straight line, and the adjusting piece c1 penetrates through the waist-shaped adjusting hole c2 and extends into the curved sliding groove c 3. The adjusting panel 40 slides to make the curved sliding groove c3 push the adjusting piece c1 to move slightly, and then the position of the switch seat 23 is properly adjusted, so that the outer walls of pencils with different outer diameters can trigger the trigger switch 20 to cut the pencils. The touch here can be either a physical touch or an inductive touch.

As shown in fig. 8, 9 and 13, the front end of the movable trigger 21 is provided with an arc contact surface 21s fitting the outer wall of the pencil. The arc contact surface 21s is adapted to the outer wall of the pencil so that the pencil can more fully touch the movable trigger 21.

For a non-contact trigger switch, the trigger switch 20 includes a sensing component for sensing insertion of a pencil, and converting or transmitting a signal of pencil insertion to drive the motor 30b, which in turn causes the sharpening mechanism 30a to sharpen the pencil. Specifically, the sensing assembly includes a sensor that receives an insertion signal of the pencil and a sensor that converts and outputs the insertion signal to control the motor 30b to be activated. In this case, the sensor is preferably an infrared sensor or a distance sensor.

The electric pencil sharpening mechanism 30 includes a motor 30b and a pencil sharpening mechanism 30a driven by the motor 30 b. Preferably, a decelerator 30d is connected to the motor 30 b.

The pencil sharpening mechanism 30a comprises a gear ring seat a1, a cutter frame a2 and a hob a3, wherein the hob a3 is connected to the cutter frame a2 in a shaft mode, one end of the hob a3 is meshed with internal teeth in the gear ring seat a1, and the motor 30b is connected with the cutter frame a2 through a speed reducer 30d and a transmission gear 30 c. The motor 30b drives the sharpening mechanism 30a via the drive gear 30 c. The presence of the speed reducer 30d enables the rotation speed of the motor 20b and the rotation speed of the tool head a2 to be matched with each other. The tool rest a2 is provided with a pencil feeding channel 101, and after a pencil is inserted into the pencil feeding channel 101 on the tool rest a2, the hob a3 cuts the pencil.

A guide assembly b2 is provided between the adjustment panel 40 and the front panel 10b to move the adjustment panel 40 on the front panel 10b in a predetermined direction. The guide member b2 includes a first linear rib provided on the adjustment panel 40 and a second linear rib provided on the front panel 10b, and the first linear rib and the second linear rib abut against each other to guide the adjustment panel 40 to move on the front panel 10b according to a predetermined path.

A positioning assembly b3 is provided between the adjustment panel 40 and the front panel 10b to position and align the selected pen insertion hole 41 with the vertical pen feeding hole b 1. The positioning member b3 includes an elastic protrusion 01 of the outer surface of the front panel 10b and a recess 02 of the inner surface of the adjustment panel 40.

Preferably, the inner surface of the adjustment panel 40 is formed with three recesses 02 and is aligned in a straight line so as to correspond to the three pen insertion holes 41 with different diameters. In the first state, the elastic protrusion 01 with certain elasticity is embedded in the recess 02 of the surface to limit and fix the adjusting panel 10 and the front panel 10 b. When the user moves the adjustment panel 40, a downward and forward force is applied to it to compress the elastic protrusion 01 into the other recess 02.

A dust collecting box 50 is detachably connected to the lower part of the housing 10, the dust collecting box 50 includes a bottom 51 and a peripheral wall 52, and the peripheral wall 52 is engaged with the lower end of the housing 10.

The specific structure of the peripheral side wall 52 of the chip collecting box 50 engaging with the lower end of the housing 10 needs to be further described: as shown in fig. 10 to 12, the lower end of the casing 10 is provided with a first step f1 and forms a first protruding border portion g1, the upper end of the peripheral side wall 52 is provided with a second step f2 and forms a second protruding border portion g2, the first border portion g1 falls on the second step f2, the second border portion g2 is located on the first step f1, and the first border portion g1 and the second border portion g2 are tightly attached to each other.

The engaging structure 60 is provided on the close contact surface between the first neighboring portion g1 and the second neighboring portion g 2.

The engaging structure 60 includes at least one pair of a projection 61 and a depression 62, and the projection 61 and the depression 62 are each disposed on the first bordered portion g1 or the second bordered portion g2, respectively.

The first border g1 is located inside the first step f1, and the second border g2 is located outside the second step f 2; or the first border g1 is located on the outer side of the first step f1 and the second border g2 is located on the inner side of the second step f 2.

After the chip collecting box 50 is connected with the casing 10, the outer surface of the chip collecting box 50 and the outer surface of the casing 10 are in smooth transition, so that the chip collecting box 50 and the casing 10 form an integral pencil sharpener shell.

The thickness of the peripheral wall 52 is equal to the thickness of the housing 10, so as to ensure that the whole outer surface of the housing of the pencil sharpener is more coherent and tidy, and the appearance of the pencil sharpener is more beautiful.

Preferably, the electric pencil sharpener 100 has an overall cylindrical structure, and the pencil is vertically inserted into the vertical pencil hole b1 of the front panel 10b from the housing 10. The cross section of the electric pencil sharpener 100 is circular or elliptical, i.e., the outer surface of the electric pencil sharpener 100 is smooth and tidy as a whole, and has better integrity and aesthetic appearance.

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 trigger switch and an electric pencil sharpening mechanism, wherein the shell and the electric pencil sharpening mechanism are provided with a pencil feeding channel, the trigger switch and the electric pencil sharpening mechanism are located in the shell, the pencil feeding channel comprises a vertical pencil feeding hole arranged on a front panel of the shell, the trigger switch is located on the side of the pencil feeding channel, and the trigger switch is triggered by the insertion of a pencil to drive the electric pencil sharpening mechanism to run.

2. The electric pencil sharpener of claim 1 further comprising an adjustment panel having a plurality of pencil insertion holes, said adjustment panel being located on a front side of said front panel, said adjustment panel being movable to align selected pencil insertion holes in said adjustment panel with said vertical pencil feed holes in said front panel.

3. The electric pencil sharpener of claim 1, wherein said trigger switch is a contact trigger switch or a non-contact trigger switch.

4. The electric pencil sharpener of claim 1 wherein the electric pencil sharpening mechanism includes a motor and a pencil sharpening mechanism driven by the motor.

5. The electric pencil sharpener according to claim 4, wherein the pencil sharpening mechanism comprises a ring gear base, a hob head and a hob, the hob head is connected to the hob head, one end of the hob head is engaged with internal teeth in the ring gear base, and the motor is connected with the hob head through a reducer and a transmission gear.

6. The electric pencil sharpener of claim 2 wherein a guide assembly is provided between the adjustment panel and the front panel to move the adjustment panel in a predetermined direction on the front panel.

7. The electric pencil sharpener of claim 2 wherein a positioning assembly is provided between said adjustment panel and said front panel to position and align a selected pencil insertion hole with said vertical pencil feed hole.

8. The electric pencil sharpener as claimed in claim 1, wherein the trigger switch is movable, and the position of the trigger switch is adjusted to make the outer walls of pencils with different outer diameters touch the trigger switch.

9. The electric pencil sharpener of claim 2, wherein said housing has a bezel at a front side thereof for receiving said adjustment panel, said bezel limiting said adjustment panel from being disengaged and said adjustment panel being movable within said bezel.

10. The electric pencil sharpener of claim 1, wherein a dust collecting box is detachably connected to a lower portion of the housing, the dust collecting box including a bottom and a peripheral wall, the peripheral wall engaging with a lower end of the housing.