CN114683749B - Electric pencil sharpener - Google Patents
Electric pencil sharpener Download PDFInfo
- Publication number
- CN114683749B CN114683749B CN202011567753.2A CN202011567753A CN114683749B CN 114683749 B CN114683749 B CN 114683749B CN 202011567753 A CN202011567753 A CN 202011567753A CN 114683749 B CN114683749 B CN 114683749B
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- Prior art keywords
- pencil sharpener
- chip collecting
- collecting cavity
- electric pencil
- cavity
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- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/008—Sharpeners for pencils or leads with rotating cutting bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/02—Sharpeners for pencils or leads with gearing
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses an electric pencil sharpener, which comprises a plastic shell, a direct current motor, a pencil sharpener and a gear assembly formed by mutually meshing a plurality of gears, wherein the plastic shell comprises a chip collecting cavity and a main machine cavity which are mutually separated by a partition plate; the top surface of the plastic shell is provided with a pair of longitudinal pen inserting holes which are connected with the chip collecting cavity, the pencil sharpener is longitudinally arranged in the chip collecting cavity, and the pen is longitudinally inserted into the pencil sharpener from the pen inserting holes; the main machine cavity comprises a vertical area which is arranged left and right of the chip collecting cavity and a transverse area which is arranged above or below the chip collecting cavity; the direct current motor is longitudinally arranged in the vertical area, each gear of the gear assembly is transversely arranged in the transverse area, and a direct current motor shaft of the direct current motor is connected with the gear assembly; the gear component is connected with and drives the pencil sharpener; the vertical area also comprises a battery position extending longitudinally, so that the loaded battery is arranged along the height direction of the electric pencil sharpener; the structure of the electric pencil sharpener is more compact, the height of the electric pencil sharpener is reduced, and the volume of the electric pencil sharpener is further reduced.
Description
Technical Field
The invention relates to a pencil sharpener for sharpening pencils, in particular to an electric pencil sharpener.
Background
The pencil sharpener is a learning or office appliance. Early pencil sharpener included a frame with a beveled blade positioned therein, and a pencil inserted into the frame for sharpening the pencil by rotating the sharpener.
At present, a pencil sharpener is more common, and the pencil sharpener is classified by power for driving the pencil sharpening mechanism and can be divided into a hand pencil sharpener and an electric pencil sharpener.
The cutters of the electric pencil sharpener are divided into two categories, namely a hob assembly and a pencil sharpener; the hob has a complex structure, an automatic pen feeding device is required to be configured, and the manufacturing cost is high; such as the electric pencil sharpener of CN206703798U and the electric pencil sharpener of CN 201333883Y.
The electric pencil sharpener is used as stationery for students in most audience groups, and is often required to be carried by a schoolbag or the like, so that the volume of the electric pencil sharpener is as small as possible.
Disclosure of Invention
The invention aims to provide an electric pencil sharpener with a compact structure.
The technical scheme adopted for solving the technical problems is as follows: the electric pencil sharpener comprises a plastic shell, a direct current motor, a pencil sharpener and a gear assembly formed by mutually meshing a plurality of gears, wherein the plastic shell comprises a chip collecting cavity and a main machine cavity which are mutually separated through a separation plate;
the top surface of the plastic shell is provided with a pair of longitudinal pen inserting holes for the chip collecting cavity, the pencil sharpener is longitudinally arranged in the chip collecting cavity along the height direction of the electric pencil sharpener, and the pencil is longitudinally inserted into the pencil sharpener from the pen inserting holes;
the main machine cavity comprises a vertical area which is arranged left and right of the chip collecting cavity and a transverse area which is arranged above or below the chip collecting cavity;
the direct current motor is longitudinally arranged in the vertical area, each gear of the gear assembly is transversely arranged in the transverse area, and a direct current motor shaft of the direct current motor is connected with the gear assembly; the gear component is connected with and drives the pencil sharpener;
the vertical area also comprises a battery position extending longitudinally, so that the battery is arranged along the height direction of the electric pencil sharpener.
The technical scheme adopted by the invention for further optimizing the technical problems is as follows: the side of the plastic shell is provided with a cabin door, and the cabin door corresponds to the chip collecting cavity and opens and closes the chip collecting cavity.
The further optimized technical scheme adopted by the invention for solving the technical problems is that the cabin door is transparent or semitransparent, and the cabin door is connected to the side part of the plastic shell through a buckle structure.
The technical scheme adopted by the invention for further optimizing the technical problem is that the gear assembly is accommodated in a flat gear box, and the direct current motor shaft of the direct current motor extends into the gear box to be connected with the gear assembly.
The invention solves the technical problems by adopting a further optimized technical scheme that the main machine cavity is provided with a mounting part for supporting the direct current motor, the mounting part and the gear box are integrally formed, and a mounting groove matched with the outer contour of the direct current motor is arranged in the mounting part.
The technical scheme adopted by the invention for further optimization for solving the technical problems is that the partition plate comprises a longitudinal partition plate and a transverse partition plate, the longitudinal partition plate separates the chip collecting cavity from a vertical area of the main machine cavity, and the transverse partition plate separates the chip collecting cavity from a transverse area of the main machine cavity.
The technical scheme adopted by the invention for further optimizing the technical problem is that the pencil sharpener further comprises a pencil inlet channel, and the pencil inlet channel is in butt joint with the pencil sharpener and the pencil inserting hole.
The plastic shell comprises a front shell and a rear shell, wherein the front shell and the rear shell are spliced to form a containing area in a surrounding mode, and the chip collecting cavity and the host cavity are located in the containing area.
The technical scheme adopted by the invention for further optimization for solving the technical problems is that a front-mounted switch is arranged on the inner side of the cabin door, and the cabin door is closed to lead the front-mounted switch to be conducted; the front switch is disconnected when the cabin door is opened.
The technical scheme adopted by the invention for further optimization to solve the technical problems is that a trigger switch for starting the direct current motor is arranged on the pen feeding channel.
Compared with the prior art, the pencil sharpener has the advantages that the pencil sharpener is longitudinally arranged in the chip collecting cavity, and the pencil is convenient to insert from top to bottom, so that a user can use the pencil more easily and conveniently; and, direct current motor, battery are columnar structure, and gear assembly wholly transversely spreads out, according to pencil sharpener, direct current motor, battery and gear assembly's shape characteristics, with direct current motor and battery position all vertically locate with collect the bits in the vertical region side by side of chamber, transversely locate the horizontal region with gear assembly, can make the structure of electric pencil sharpener compacter, reduce the height of electric pencil sharpener, further reduce the volume of electric pencil sharpener.
Drawings
The invention will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the invention. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.
Fig. 1 is a perspective view of an electric pencil sharpener according to a preferred embodiment of the present invention;
fig. 2 is a sectional view of an electric pencil sharpener according to a preferred embodiment of the present invention;
fig. 3 is an exploded view of an electric pencil sharpener according to a preferred embodiment of the present invention;
FIG. 4 is a first internal construction view of an electric pencil sharpener according to a preferred embodiment of the present invention;
FIG. 5 is a second internal construction diagram of the electric pencil sharpener according to the preferred embodiment of the present invention;
FIG. 6 is a diagram showing the connection between the driving assembly and the pencil sharpener of the electric pencil sharpener of a preferred embodiment of the present invention;
FIG. 7 is a view showing a first construction of a pencil sharpener mounting structure of the electric pencil sharpener of the present invention;
FIG. 8 is a second construction diagram showing the installation of a sharpener of the electric pencil sharpener of the preferred embodiment of the present invention;
fig. 9 is an exploded view showing a mounting structure of a sharpener of an electric pencil sharpener according to a preferred embodiment of the present invention;
FIG. 10 is a schematic view showing electrical connection of an electric pencil sharpener according to a preferred embodiment of the present invention;
fig. 11 is a circuit diagram of an electric pencil sharpener according to a preferred embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the invention.
It should be noted that: like reference numerals denote 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 the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 6, the electric pencil sharpener includes a plastic housing 100, a driving assembly, a battery 300, a pencil sharpener 400 and a pencil inlet channel 500, wherein the pencil inlet channel 500 extends from the inside of the plastic housing 100 to the surface of the plastic housing 100 to form a pencil insertion hole 1 on the top surface of the plastic housing 100. The pencil sharpener 400 interfaces with the pencil feed channel 500, and the pencil is inserted longitudinally into the pencil feed channel 500 from the pencil insertion hole 1 and into the pencil sharpener so that the pencil front section falls into the cutting area of the pencil sharpener 400.
In addition, as shown in fig. 2 to 5, the driving assembly includes a dc motor 201, a gear assembly 202, and an output shaft 203, the dc motor 201 drives the gear assembly 202 to rotate, the end of the gear assembly 202 is connected to the output shaft 203, and the output shaft 203 is connected to the pencil sharpener 400. The direct current motor 201 works to drive the gear assembly 202 to rotate so as to drive the output shaft 203, and the output shaft 203 rotates to drive the pencil sharpener 400 to rotate, so that the electric pencil sharpener realizes automatic pencil sharpening under electric drive, and a user can sharpen the pencil more easily and conveniently.
Also, the battery 300 is electrically connected to the direct current motor 201 to supply power to the direct current motor 201. Preferably, the battery 300 is a disposable battery or a rechargeable battery.
As shown in fig. 2 to 6, the plastic housing 100 includes a front case 100a and a rear case 100b, and the front case 100a and the rear case 100b are spliced to enclose a receiving region. The accommodating area is internally provided with a chip collecting cavity 101 and a main machine cavity 111 which are mutually separated by a partition plate; the main machine cavity 111 includes a vertical region 102 side by side to the left and right of the chip collecting cavity 101, and a lateral region 103 above or below the chip collecting cavity 101.
The partition plate comprises a longitudinal partition plate 2 and a transverse partition plate 3, wherein the longitudinal partition plate 2 separates the chip collecting cavity 101 from the vertical area 102 of the main machine cavity 111, and the transverse partition plate 3 separates the chip collecting cavity 101 from the transverse area 103 of the main machine cavity 111.
The direct current motor 201 is longitudinally disposed in the vertical region 102, and each gear of the gear assembly 202 is transversely disposed in the lateral region 103. The vertical section 102 also includes a longitudinally extending battery compartment J for locating the battery 300 in the height direction of the electric pencil sharpener, said battery compartment being juxtaposed side-by-side with the dc motor.
It should be understood that the pencil sharpener is longitudinally arranged in the chip collecting cavity, and the pencil is convenient to insert from top to bottom, so that the pencil sharpener is easier and more convenient for users to use.
And, direct current motor, battery are columnar structure, and gear assembly's first-stage gear needs to be connected with direct current motor is perpendicular, and gear assembly 202's each gear whole is along transversely spreading. According to the shape characteristics of the pencil sharpener, the direct current motor, the battery and the gear assembly, the direct current motor and the battery are longitudinally arranged in the vertical area 102 which is parallel to the chip collecting cavity, and each gear of the gear assembly 202 is transversely arranged in the transverse area 103, so that the structure of the electric pencil sharpener is more compact, the height of the electric pencil sharpener is reduced, and the size of the electric pencil sharpener is further reduced.
Preferably, the transverse partition 3 is provided with a through-hole T through which the pencil sharpener 400 is abutted with the output shaft 203. When the pencil sharpener 400 is installed, the pencil sharpener 400 seals the through hole, so that the chip collecting cavity 101 and the main machine cavity 111 are sealed, and the chips are prevented from entering the main machine cavity to damage components in the main machine cavity.
As shown in fig. 1 to 5, a door 4 is provided on the plastic housing 100 corresponding to the chip collecting chamber 101, and a user can repair, clean and replace the pencil sharpener 400 by opening the door 4. Meanwhile, the dust collecting cavity 101 is used as a dust collecting box for collecting dust generated in the pencil cutting process, and the cabin door 4 is arranged for facilitating cleaning of dust by a user.
Preferably, the door 4 is transparent or translucent, so that a user can observe the dust collecting condition in the dust collecting cavity 101, the pencil sharpening condition, and the state of the pencil sharpener 400. It is further preferred that the hatch door 4 is attached to the side of the plastic housing 100 by a snap-in structure.
Further, the gear assembly 202 is accommodated in a flat gear case W, and the dc motor shaft of the dc motor 201 extends into the gear case W to be connected to the gear assembly 202.
The main body chamber 111 is provided with a mounting portion M for supporting the dc motor, the mounting portion M and the gear case W are integrally formed, and a mounting groove matching the outer contour of the dc motor is provided in the mounting portion M.
Because the pencil sharpener 400 is easily worn during use, this affects the use of the entire electric pencil sharpener. In the present embodiment, there is provided a pencil sharpener 400 mounting structure that is easy to replace. Through this mounting structure, the user can replace the pencil sharpener 400, thereby utilizing the original host machine to continue to use the electric pencil sharpener, thereby saving the cost and realizing the maximum utilization of resources.
As shown in fig. 2, 3, 7-9, the pencil sharpener mounting structure for easy replacement includes a pencil sharpener 400, a movable sleeve 600 and a supporting plate 700 having a pencil insertion hole 1. The output shaft of the drive assembly is located below the support plate 700. The pencil sharpener 400 is located between the support plate 700 and the drive assembly. Wherein the pencil sharpener 400 includes a blade holder 10 and a blade 9 mounted on the blade holder 10, the blade 9 being mounted on the blade holder 10 by a screw, and the blade 9 being located at a middle section of the blade holder 10.
The movable cover 600 may be movably installed under the support plate 700 up and down with respect to the support plate 700. The bottom end of the knife rest 10 of the pencil sharpener 400 is provided with a connector 11 so as to be detachably connected with a driving assembly; the pen inlet end 12 of the upper end of the tool rest 10 is sleeved with the movable sleeve 600. Moreover, the center hole of the movable sleeve 600 forms a pen-feeding channel 500 for the pen-insertion hole 1, and the pen-feeding channel 500 is in turn abutted with the pen-feeding hole of the cutter holder 10.
As shown in fig. 2 and 8, an elastic member 800 is provided between the movable sleeve 600 and the support plate 700. When no external force is applied, the elastic member 800 is moderately compressed, thereby having a downward force on the movable housing 600, securing the pencil sharpener 400 between the movable housing 600 and the driving assembly. When the user moves the movable sleeve 600 toward the support plate 700 and further compresses the elastic member 800, the movable sleeve 600 is away from the pen end 12 of the holder 10, so that the pen end 12 of the holder 10 can be separated from the movable sleeve 600. The upper end of the blade holder 10 is now free and is not limited in position, so that the user can remove the pencil sharpener 400 from the plastic housing 100 after the detachable connection of the blade holder 10 to the drive assembly is released.
In contrast, when the pencil sharpener 400 is mounted on the plastic housing 100, the movable sleeve 600 is moved toward the supporting plate 700, the compression amount of the elastic member 800 is increased to store energy, and then the bottom end of the knife rest 10 is connected to the driving assembly. Then, the movable sleeve 600 is released, the compressed amount of the compressed elastic member 800 is reduced, and the movable sleeve 600 is driven to move downwards, so that the movable sleeve 600 is sleeved with the pen inlet end 12 of the cutter holder 10.
Preferably, the fixing sleeve 900 is mounted on the support plate 700, the fixing sleeve 900 extends downwards from the bottom of the support plate 700, and one end of the movable sleeve 600 extends into the fixing sleeve 900, so that the fixing sleeve and the movable sleeve can be movably connected.
Preferably, as shown in fig. 7, 8, and 9, the fixing sleeve 900 is assembled to the support plate 700 by a snap structure. The fastening structure comprises a fastening hook 8 positioned at the upper end of the fixing sleeve 900 and a fastening hole 7 positioned on the supporting plate 700, wherein the fastening hook 8 penetrates through the fastening hole 7 from bottom to top and is hooked on the upper surface of the supporting plate 700, so that the fixing sleeve 900 is connected with the supporting plate 700. Such an arrangement facilitates assembly between the pencil sharpener 400, the movable sleeve 600, the elastic member 800 and the fixed sleeve 900. In the assembling process, the pencil sharpener 400, the movable sleeve 600, the elastic member 800 and the fixed sleeve 900 are assembled together according to the connection relationship, and then the fixed sleeve 900 is buckled on the supporting plate 700.
Meanwhile, a limiting structure for limiting the limiting movement of the movable sleeve 600 is arranged between the fixed sleeve 900 and the movable sleeve 600. The lowest position of the movable sleeve 600 moving downwards can be controlled by the limiting structure so as to ensure that the movable sleeve 600 keeps reasonable acting force on the tool rest 10.
More specifically, the limiting structure includes a first retainer ring 901 at the lower end of the fixed sleeve 900 and a second retainer ring 601 at the middle of the movable sleeve 600, and the second retainer ring 601 is located inside the first retainer ring 901 to limit the movable sleeve 600 from being separated from the fixed sleeve 900.
In addition, during the moving process of the movable sleeve 600, the insertion part C at the upper end of the movable sleeve 600 always extends into the pen inlet channel 500, the outer surface of the peripheral side part of the movable sleeve 600, the inner surface of the peripheral side part of the fixed sleeve 900, the lower surface of the support plate 700 and the upper surface of the second retainer ring 601 of the movable sleeve 600 are enclosed together to form a accommodating chamber K with a variable height, the elastic member 800 is installed in the accommodating chamber K, and the two ends of the elastic member 800 are propped between the support plate 700 and the second retainer ring 601. Preferably, the elastic member 800 is a spring, and the spring is coaxially sleeved outside the movable sleeve 600.
Thus, the second retainer 601 of the movable sleeve 600 may move up and down within the first retainer 901 and the support plate 700 or restricted area, the distance of which is limited by the maximum compression of the elastic member 800. And, the elastic member 800 generates a downward force on the movable housing 600 through the second retainer ring 601.
As shown in fig. 8 and 9, the pencil end 12 of the holder 10 preferably comprises a planar end wall P, the middle of which is provided with an upwardly projecting connecting wall Y. Preferably, the connecting wall Y is a wall of the pen hole of the tool holder 10, and its outer contour is adapted to the inner cavity of the movable sleeve 600.
The lower end of the movable sleeve 600 is provided with a concave cavity into which the connecting wall Y is inserted, and the lower end of the movable sleeve 600 is tightly contacted with the planar end wall P under the action of the elastic member 800.
Further preferably, a bottom plate D is arranged at the bottom end of the knife rest 10, a shaft hole R is arranged in the center of the bottom plate D, and the output shaft 203 of the driving assembly extends out of the through hole of the transverse partition plate 3 and is spliced with the shaft hole, so that the detachable connection between the knife rest 10 of the pencil sharpener 400 and the driving assembly is realized.
Preferably, the shaft hole is a square hole, the tail end of the output shaft 203 is a square cylinder matched with the square hole, and the square cylinder is inserted into the square hole to enable the square cylinder to axially move to release the connection relationship, but the square cylinder and the square cylinder cannot radially rotate to enable the output shaft 203 to drive the pencil sharpener 400 to synchronously rotate.
When a user opens the cabin door 4 to clean the chip collecting cavity 101 or replace the pencil sharpener 400, in order to avoid potential safety hazards caused by cutting the fingers of the user or throwing out the pencil sharpener 400 due to rotation of the pencil sharpener 400, a safety protection system of the electric pencil sharpener is provided in the embodiment.
As shown in fig. 4, 10, 11, the safety protection system includes the plastic housing 100, the dc motor 201, the battery 300, the pencil sharpener 400, and the pencil inlet channel 500 described above. The pen-feeding channel 500 is provided with a trigger switch 21 for starting the direct current motor 201, and when a pen is inserted into the pen-feeding channel 500 to the trigger switch 21, the trigger switch 21 is turned on. When the pen exits the pen-in channel 500 away from the trigger switch 21, the trigger switch 21 opens. The front switch 22 is disposed inside the door 4 of the plastic housing 100, and the door 4 is closed to turn on the front switch 22; the door 4 is opened so that the front switch 22 is opened. The direct current motor 201, the battery 300, the trigger switch 21 and the front switch 22 are connected in series to form a loop. The battery 300 is connected into the circuit through a conductive member 301. That is, only when the door 4 is closed, the pen is inserted into the pen-insertion path 500 to close the circuit, so that the dc motor 201 is supplied with power from the battery 300 to drive the pencil sharpener 400.
Preferably, the trigger switch 21 and the front switch 22 are micro switches. It is further preferred that the inner side of the hatch 4 is provided with a trigger lever in contact with the front switch 22, by means of which the hatch 4 touches the front switch 22 when the hatch 4 is closed.
Of course, it is also possible for a person skilled in the art to arrange a controller in the electric pencil sharpener, wherein the trigger switch 21, the pre-switch 22, the direct current motor 201 and the battery 300 are not connected in series any more, but the trigger switch 21 and the pre-switch 22 are connected in parallel in the circuit. However, the trigger switch 21 and the pre-switch 22 are both in communication with the controller, and the controller will control the dc motor 201 to operate only when the controller receives the on signals of the trigger switch 21 and the pre-switch 22 at the same time.
The above description of the electric pencil sharpener provided by the invention is provided in detail, and specific examples are applied to explain the principle and the implementation mode of the invention, and the above examples are only used for assisting in assisting the invention and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (8)
1. The electric pencil sharpener is characterized by comprising a plastic shell, a direct current motor, a pencil sharpener and a gear assembly formed by mutually meshing a plurality of gears, wherein the plastic shell comprises a chip collecting cavity and a main machine cavity;
the main machine cavity comprises a vertical area which is arranged left and right of the chip collecting cavity and a transverse area which is positioned below the chip collecting cavity;
the vertical area and the chip collecting cavity are separated by a longitudinal baffle plate, and the chip collecting cavity and the transverse area of the main machine cavity are separated by a transverse baffle plate;
the top of the vertical area and the chip collecting cavity is provided with a supporting plate, and a pen inserting hole extends from the supporting plate to the top surface of the plastic shell;
the vertical area further comprises a battery position extending longitudinally, so that the loaded battery is arranged along the height direction of the electric pencil sharpener;
the direct current motor is longitudinally arranged in the vertical area, each gear of the gear assembly is transversely arranged in the transverse area, and a direct current motor shaft of the direct current motor is connected with the gear assembly;
the tail end of the gear assembly is connected with an output shaft, and the output shaft penetrates through the transverse partition plate and stretches into the chip collecting cavity;
the support plate is connected with a fixing sleeve through a buckle structure, and the fixing sleeve extends downwards from the bottom of the support plate;
the fixed sleeve is movably connected with a movable sleeve; the lower end of the fixed sleeve is provided with a first check ring, the middle part of the movable sleeve is provided with a second check ring, and the second check ring is positioned at the inner side of the first check ring to limit the movable sleeve to be separated from the fixed sleeve;
the inserting part at the upper end of the second retaining ring extends into the pen inserting hole of the supporting plate; the movable sleeve part at the lower end of the second check ring penetrates through the fixed sleeve and extends into the chip collecting cavity;
an elastic piece is arranged between the movable sleeve and the supporting plate, and two ends of the elastic piece are propped between the supporting plate and the second check ring;
the pencil sharpener is longitudinally arranged in the chip collecting cavity along the height direction of the electric pencil sharpener; the bottom end of the tool rest of the pencil sharpener is provided with a bottom plate, the center of the bottom plate is provided with a shaft hole, and the output shaft extends out of the through hole of the transverse partition plate and is spliced with the shaft hole;
the pen inlet end of the tool rest comprises a plane end wall, and the middle part of the plane end wall is provided with a connecting wall protruding upwards; the lower end of the movable sleeve is provided with a concave cavity for inserting the connecting wall, and the lower end of the movable sleeve is tightly contacted with the plane end wall under the action of the elastic piece;
the pen is longitudinally inserted into the pencil sharpener from the pencil insertion hole; the gear assembly drives the pencil sharpener.
2. The electric pencil sharpener of claim 1, wherein a hatch is provided on the side of the plastic housing, the hatch corresponding to the chip collecting cavity and opening and closing the chip collecting cavity.
3. The electric pencil sharpener of claim 2 wherein the door is transparent or translucent and is attached to the side of the plastic housing by a snap-in structure.
4. The electric pencil sharpener of claim 2 wherein the gear assembly is received in a flat gear box, the dc motor shaft of the dc motor extending into the gear box for connection with the gear assembly.
5. The electric pencil sharpener of claim 4, wherein the main housing has a mounting portion for supporting the DC motor, the mounting portion being integrally formed with the gear housing, and a mounting slot being provided in the mounting portion for mating with an outer contour of the DC motor.
6. The electric pencil sharpener of claim 1 wherein the plastic housing includes a front shell and a rear shell that are spliced to enclose a receiving area, the chip collecting cavity and the main body cavity being located within the receiving area.
7. The electric pencil sharpener of claim 2, wherein a front switch is disposed on the inside of the hatch, the hatch being closed such that the front switch is turned on; the hatch door opens causing the front switch to open.
8. The electric pencil sharpener of claim 1, wherein said pencil inlet channel is provided with a trigger switch for activating the dc motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567753.2A CN114683749B (en) | 2020-12-25 | 2020-12-25 | Electric pencil sharpener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011567753.2A CN114683749B (en) | 2020-12-25 | 2020-12-25 | Electric pencil sharpener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114683749A CN114683749A (en) | 2022-07-01 |
| CN114683749B true CN114683749B (en) | 2024-02-27 |
Family
ID=82130127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011567753.2A Active CN114683749B (en) | 2020-12-25 | 2020-12-25 | Electric pencil sharpener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114683749B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB753531A (en) * | 1953-11-30 | 1956-07-25 | Williamson Mfg Company Ltd | Improvements in and relating to pencil sharpeners |
| GB791489A (en) * | 1955-06-14 | 1958-03-05 | Roland Graf Von Faber Castell | Pencil sharpening machine |
| EP0031470A1 (en) * | 1979-11-29 | 1981-07-08 | T. Paul MÖBIUS, Metallwarenfabrik | Pencil sharpener with receptacle |
| JP3043704U (en) * | 1997-05-23 | 1997-11-28 | 恒春 顧 | Electric pencil sharpener |
| CN201484015U (en) * | 2009-06-05 | 2010-05-26 | 卓香财 | Electric pencil sharpener |
| CN204210218U (en) * | 2014-10-31 | 2015-03-18 | 义乌市鼎邦文体用品有限公司 | A kind of electric pencil-sharpening unit |
| CN110254094A (en) * | 2019-04-24 | 2019-09-20 | 乐清市冲天文具有限公司 | A kind of pencil sharpener |
| CN209775975U (en) * | 2019-03-22 | 2019-12-13 | 义乌市鼎邦文体用品有限公司 | Pencil sharpener with automatic pencil feeding mechanism |
| CN111439058A (en) * | 2020-04-16 | 2020-07-24 | 宁海县金益文具有限公司 | Electric pencil sharpener |
-
2020
- 2020-12-25 CN CN202011567753.2A patent/CN114683749B/en active Active
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| GB753531A (en) * | 1953-11-30 | 1956-07-25 | Williamson Mfg Company Ltd | Improvements in and relating to pencil sharpeners |
| GB791489A (en) * | 1955-06-14 | 1958-03-05 | Roland Graf Von Faber Castell | Pencil sharpening machine |
| EP0031470A1 (en) * | 1979-11-29 | 1981-07-08 | T. Paul MÖBIUS, Metallwarenfabrik | Pencil sharpener with receptacle |
| JP3043704U (en) * | 1997-05-23 | 1997-11-28 | 恒春 顧 | Electric pencil sharpener |
| CN201484015U (en) * | 2009-06-05 | 2010-05-26 | 卓香财 | Electric pencil sharpener |
| CN204210218U (en) * | 2014-10-31 | 2015-03-18 | 义乌市鼎邦文体用品有限公司 | A kind of electric pencil-sharpening unit |
| CN209775975U (en) * | 2019-03-22 | 2019-12-13 | 义乌市鼎邦文体用品有限公司 | Pencil sharpener with automatic pencil feeding mechanism |
| CN110254094A (en) * | 2019-04-24 | 2019-09-20 | 乐清市冲天文具有限公司 | A kind of pencil sharpener |
| CN111439058A (en) * | 2020-04-16 | 2020-07-24 | 宁海县金益文具有限公司 | Electric pencil sharpener |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114683749A (en) | 2022-07-01 |
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