CN111572252A

CN111572252A - Cutting trigger system and electric pencil sharpener

Info

Publication number: CN111572252A
Application number: CN202010533697.4A
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: 2020-08-25

Abstract

The invention discloses a cutting triggering system and an electric pencil sharpener, which comprise a pencil feeding channel, a triggering switch and an electric pencil sharpening mechanism, wherein after a pencil is inserted into the pencil feeding channel, the triggering switch is triggered to drive the electric pencil sharpening mechanism to operate; the trigger switch is movably arranged on a path of the pencil feeding channel, and the position of the trigger switch is adjusted, so that the outer walls of the pencils with different outer diameters can trigger the trigger switch, and the aim of cutting the pencils with different outer diameters is fulfilled finally.

Description

Cutting trigger system and electric pencil sharpener

Technical Field

The invention relates to a pencil sharpener for sharpening a pencil, in particular to a sharpening triggering system of 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 electric pencil sharpener disclosed in application publication No. CN108081836A has two sharpening holes with different hole diameters, and can sharpen pencils with different thicknesses and different lengths of the pencil point. In the existing products and documents, the pencils with different thicknesses are not inserted to automatically trigger the motor to work for cutting.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a cutting trigger system, and when pencils with different outer diameter sizes are inserted into a pencil sharpener, the pencil sharpener can be triggered to work to cut the pencils. Further provided is a pencil sharpener having the above-described cutting trigger system.

The technical scheme adopted by the invention for solving the technical problems is as follows: the cutting trigger system comprises a pencil feeding channel, a trigger switch and an electric pencil sharpening mechanism, wherein the trigger switch can trigger the electric pencil sharpening mechanism to operate, the trigger switch is movably arranged on a path of the pencil feeding channel, and the position of the trigger switch is adjusted to enable outer walls of pencils with different outer diameters to touch the trigger switch.

The further preferable technical scheme of the invention is as follows: the trigger switch comprises a movable trigger piece and a switch; when the movable trigger piece touches the switch, the electric pencil sharpening mechanism is started; when the movable trigger part leaves the switch, the electric pencil sharpening mechanism is closed.

The further preferable technical scheme of the invention is as follows: the cutting trigger system also comprises a switch seat for installing the trigger switch, a front panel with pen inlet holes and an adjusting panel with pen inserting holes with different calibers, wherein the switch seat is positioned on the inner side of the front panel, and the adjusting panel is movably positioned on the outer side of the front panel.

The further preferable technical scheme of the invention is as follows: when the adjusting panel moves to enable the selected pen inserting hole to align to the pen inlet channel, the position of the switch seat is adaptively adjusted to enable the outer walls of pencils with different outer diameters to touch the trigger switch.

The further preferable technical scheme of the invention is as follows: the switch seat on the fixed regulating part that is equipped with, the front panel on be equipped with waist type regulation hole, adjusting panel on be equipped with a curve spout, the regulating part pass waist type regulation hole stretch into extremely the curve spout in, the switch seat follow the different positions that adjusting panel removed to waist type regulation hole.

The further preferable technical scheme of the invention is as follows: the front end of the movable trigger piece is provided with an arc-shaped contact surface matched with the outer wall of the pencil.

The further preferable technical scheme of the invention is as follows: the electric pencil sharpening mechanism comprises a motor and a pencil sharpening mechanism, and the motor drives the pencil sharpening mechanism through a transmission gear.

The further preferable technical scheme of the invention is as follows: and a speed reducer is arranged between the motor and the transmission gear.

The further preferable technical scheme of the invention is as follows: 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 extends into the gear ring seat, and the transmission gear is connected with one end of the cutter frame.

Another preferred subject of the invention is: the electric pencil sharpener is characterized by comprising the cutting trigger system.

Compared with the prior art, the pencil sharpener has the advantages that after the pencil is inserted into the pencil inlet channel, the trigger switch is touched to drive the electric pencil sharpening mechanism to operate; the trigger switch is movably arranged on a path of the pencil feeding channel, and the position of the trigger switch is adjusted, so that the outer walls of the pencils with different outer diameters can trigger the trigger switch, and the aim of cutting the pencils with different outer diameters is fulfilled finally.

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 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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when 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 cutting trigger system is characterized by comprising a pencil feeding channel, a trigger switch and an electric pencil sharpening mechanism, wherein the trigger switch can trigger the electric pencil sharpening mechanism to operate, the trigger switch is movably arranged on a path of the pencil feeding channel, and the position of the trigger switch is adjusted so that outer walls of pencils with different outer diameters can touch the trigger switch.

2. The cut trigger system of claim 1, wherein said trigger switch comprises a movable trigger and a switch; when the movable trigger piece touches the switch, the electric pencil sharpening mechanism is started; when the movable trigger part leaves the switch, the electric pencil sharpening mechanism is closed.

3. The cut trigger system of claim 1, further comprising a switch housing for mounting the trigger switch, a front plate having a pen inlet hole, and an adjustment plate having a different caliber pen insertion hole, wherein the switch housing is located on an inner side of the front plate, and the adjustment plate is movably located on an outer side of the front plate.

4. The cut trigger system of claim 3, wherein when the adjustment panel is moved to align the selected insertion hole into the pen channel, the position of the switch seat is adaptively adjusted to allow outer walls of pencils of different outer diameters to contact the trigger switch.

5. The cutting trigger system according to claim 4, wherein the switch seat is fixedly provided with an adjusting member, the front panel is provided with a waist-shaped adjusting hole, the adjusting panel is provided with a curved chute, the adjusting member passes through the waist-shaped adjusting hole and extends into the curved chute, and the switch seat moves to different positions of the waist-shaped adjusting hole along with the adjusting panel.

6. The cutting trigger system of claim 2, wherein the movable trigger member has an arcuate contact surface at its forward end that engages the outer wall of the pencil.

7. The cut trigger system of claim 1, wherein said electric sharpener comprises a motor and a sharpener, said motor driving said sharpener via a drive gear.

8. The cut trigger system of claim 7, wherein a speed reducer is further disposed between said motor and said drive gear.

9. The cutting trigger system according to claim 7, wherein said sharpening mechanism comprises a ring gear base, a cutter holder and a roller cutter, said roller cutter is connected to said cutter holder, one end of said roller cutter extends into said ring gear base, and said drive gear is connected to one end of said cutter holder.

10. An electric pencil sharpener characterized by comprising a cutting trigger system as claimed in any one of claims 1-9.