CN212827576U

CN212827576U - Pencil sharpener

Info

Publication number: CN212827576U
Application number: CN202021090066.1U
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: 2021-03-30
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a pencil sharpener, pencil sharpener is including the casing that embeds there is the mechanism of cutting a pencil and the adjusting panel who has the hole of inserting a pencil of a plurality of different bores, the casing front side is equipped with the front panel that has into the hole of a pencil and is located the frame that can hold adjusting panel of front panel front side, frame restriction adjusting panel breaks away from and adjusting panel can move in the frame, the user adjusts the different positions of adjusting panel in the frame, so that the hole of inserting a pencil of one of them bore corresponds with the hole of inserting a pencil of seting up on the front panel, thereby make the pencil of different external diameters all can insert from the hole of inserting a pencil to the hole of entering a pencil, in order to reach the purpose that the mechanism of cutting a pencil cut it; and the pencils with different diameters are inserted into the corresponding pen inserting holes with different diameters, so that the verticality of the pencils can be ensured, the function of positioning the centers of the pencils can be achieved, and the cut pencils cannot deviate from the cores.

Description

Pencil sharpener

Technical Field

The utility model relates to a penknife for cutting the pencil especially relates to a collection bits box assembly structure of penknife, and collection bits box is in order to collect produced pencil bits behind the pencil that cuts.

Background

The pencil sharpener is used for sharpening common pencils, colored pencils, sketch pencils and the like, and is a common school supply and office supply. The pencil sharpener comprises a shell, a pencil sharpening mechanism, a rocking handle and the like; usually, a pencil sharpener can only cut pencils with one diameter correspondingly.

The adjustable pencil sharpener disclosed in the publication No. CN204687680U has a rotary front cover mounted on a front panel, and the rotary front cover is provided with at least two pencil feeding holes with different calibers, so as to cut various pencils with different diameters.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a pencil sharpener capable of cutting various pencils with different diameters.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the pencil sharpener comprises a shell with a pencil sharpening mechanism and an adjusting panel with a plurality of pencil inserting holes with different calibers, wherein the front side of the shell is provided with a front panel with a pencil feeding hole and a frame which is positioned at the front side of the front panel and can accommodate the adjusting panel, the frame limits the adjusting panel to be separated from the adjusting panel and the adjusting panel to be capable of moving in the frame, different positions of the adjusting panel in the frame are adjusted, and one of the pencil inserting holes can be selected to correspond to the pencil feeding hole.

The utility model discloses further preferred technical scheme does: the frame comprises an annular component bent inwards, an annular notch is formed between the annular component and the front panel, and at least one part of the outer edge of the adjusting panel is positioned in the annular notch.

The utility model discloses further preferred technical scheme does: the upper surface of the adjusting panel is flush with the upper surface of the frame.

The utility model discloses further preferred technical scheme does: a positioning assembly is arranged between the adjusting panel and the front panel, and the positioning assembly is used for accurately positioning one of the pen inserting holes and the pen feeding hole.

The utility model discloses further preferred technical scheme does: the positioning component comprises an elastic bulge on the outer surface of the front panel and a recess on the inner surface of the adjusting panel.

The utility model discloses further preferred technical scheme does: a guide assembly is arranged between the adjusting panel and the front panel, and the guide assembly is used for guiding the adjusting panel to move on the front panel according to a preset path.

The utility model discloses further preferred technical scheme does: the guide assembly comprises a first linear convex rib arranged on the adjusting panel and a second linear convex rib arranged on the front panel, and the first linear convex rib and the second linear convex rib are close to each other.

The utility model discloses further preferred technical scheme does: the shell is internally provided with a motor for driving the pencil sharpening mechanism, and the motor drives the pencil sharpening mechanism through a gear assembly.

The utility model discloses further preferred technical scheme does: the pencil sharpening mechanism comprises a cutter frame, a hob and a gear ring seat which are vertically arranged, and the gear ring seat is positioned above the cutter frame.

The utility model discloses further preferred technical scheme does: three pen inserting holes with different calibers are arranged on the adjusting panel in a linear mode, and the arrangement direction is consistent with the moving direction of the adjusting panel.

Compared with the prior art, the utility model has the advantages that the pencil sharpener comprises an adjusting panel provided with pencil inserting holes with different calibers, the adjusting panel is arranged on one side of the front panel through the frame and can move in the frame, and a user adjusts different positions of the adjusting panel in the frame so as to enable the pencil inserting hole with one calibre to correspond to the pencil feeding hole arranged on the front panel, thereby pencils with different outer diameters can be inserted into the pencil feeding hole from the pencil inserting hole, and the purpose of cutting the pencils by the pencil sharpening mechanism is achieved; and the pencils with different diameters are inserted into the corresponding pen inserting holes with different diameters, so that the verticality of the pencils can be ensured, the function of positioning the centers of the pencils can be achieved, and the cut pencils cannot deviate from the cores.

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.

The pencil sharpener of the present embodiment may be of a manual type or an electric type, and when the pencil sharpener is of an electric type, the pencil sharpening mechanism is an electric pencil sharpening mechanism, and the details will be described below by taking the electric pencil sharpener as an example.

In the pencil sharpener of the embodiment, the pencil feeding hole and the pencil feeding channel 101 communicated with the pencil feeding hole can be vertically arranged or horizontally arranged; namely, the pencil can be inserted vertically downwards or horizontally in actual use. The pen feeding method will be described in detail below by taking a vertical pen feeding mode as an example.

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. That is, the movement of the curved sliding groove c3 serves to guide and push the trigger switch 20, so as to achieve the effect of adjusting the distance between the trigger switch 20 and the pen insertion hole 41.

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 tool rest a2 and a hob a3, wherein the hob a3 is connected to the tool rest 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 tool rest a2 through a speed reducer 30d and a gear assembly 30 c. The motor 30b drives the sharpening mechanism 30a through a gear assembly 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 a 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 is only 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 pencil sharpener is characterized by comprising a shell with a pencil sharpening mechanism and an adjusting panel with a plurality of pencil inserting holes with different calibers, wherein the front side of the shell is provided with a front panel with a pencil feeding hole and a frame which is positioned at the front side of the front panel and can accommodate the adjusting panel, the frame limits the adjusting panel to be separated from the frame, the adjusting panel can move in the frame, different positions of the adjusting panel in the frame are adjusted, and one of the pencil inserting holes can be selected to correspond to the pencil feeding hole.

2. The sharpener of claim 1 wherein said bezel includes an inwardly bent annular member and said front panel defines an annular notch therebetween, said adjustment panel having at least a portion of an outer edge thereof located within said annular notch.

3. The sharpener of claim 2 wherein the upper surface of the adjustment panel is flush with the upper surface of the bezel.

4. The pencil sharpener of claim 1, wherein a positioning assembly is disposed between the adjustment panel and the front panel, said positioning assembly being adapted to accurately position one of the insertion apertures and said pencil feed aperture.

5. The sharpener of claim 4, wherein said positioning assembly includes a resilient projection on the outer surface of the front panel and a recess on the inner surface of the adjustment panel.

6. The sharpener of claim 1 wherein a guide assembly is disposed between the adjustment panel and the front panel, said guide assembly guiding the adjustment panel to move along a predetermined path on the front panel.

7. The pencil sharpener of claim 6, wherein said guide assembly includes a first linear rib on said adjustment panel and a second linear rib on said front panel, said first linear rib and said second linear rib abutting each other.

8. The sharpener of claim 1 further including a motor within the housing for driving the sharpening mechanism, the motor driving the sharpening mechanism through a gear assembly.

9. The pencil sharpener of claim 8 wherein the pencil sharpening mechanism includes a vertically disposed knife holder, a hob and a ring gear holder, said ring gear holder being located above the knife holder.

10. The pencil sharpener of claim 1, wherein three different-caliber pencil holes are arranged in a straight line on said adjustment panel, said line being aligned in the same direction as the direction of movement of said adjustment panel.