CN214396178U

CN214396178U - Electric pencil sharpener

Info

Publication number: CN214396178U
Application number: CN202120410093.0U
Authority: CN
Inventors: 刘军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-10-15
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses an electric pencil sharpener, which comprises a power supply component, a motor, a switch component, a transmission component, a pencil point thickness adjusting component and a knife rest provided with a cutter, which are arranged in a shell and a base, wherein the lower end of the knife rest is connected with an output wheel in a transmission way, the knife rest and the output wheel can be movably arranged in a cavity up and down, the output wheel is connected with the transmission component in a transmission way, the switch component comprises a starting plate and a switch device with a reset function, the starting plate can be sleeved on the lower part of the output wheel in a vertically movable manner, the starting plate is connected with a starting switch contact, the switch device is arranged below the starting switch contact, when the starting plate extrudees with the switch ware each other down to starting switch contact, power supply module and motor are switched on to the switch ware electric conductance, and the starting switch contact passes through the elastic component to be connected with the starting plate, and the elastic component plastic deformation produces the pretightning force, avoids the switch contact failure problem that the power instability that the hand pushed down the pencil brought.

Description

Electric pencil sharpener

Technical Field

The utility model belongs to the technical field of stationery and specifically relates to an electronic ware of cutting a pencil.

Background

The pencil sharpener is a tool for sharpening pencils, most of common pencils used in the market are manual pencils, the pencil sharpening efficiency of the pencils is low in the pencil sharpening process of the pencils, meanwhile, the pencil sharpening effect is influenced, and pencil leads are easy to break.

Chinese patent No. CN209037262U discloses an electric time-delay pencil sharpener with adjustable pencil point, wherein a power supply module and a motor are connected after being contacted by a first elastic sheet and a second elastic sheet, and the first elastic sheet is located at the bottom end of a tool rest. There is when the pencil drives the knife rest down in this patent, and user's thrust is unstable, the first shell fragment that brings and the problem of second shell fragment contact failure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: overcomes the defects of the prior art and provides the electric pencil sharpener capable of preventing the switch from poor contact.

The utility model adopts the technical proposal that: an electric pencil sharpener comprises a base and a shell, wherein the shell is sleeved on the base, a power supply assembly, a motor, a switch assembly, a transmission assembly, a pencil point thickness adjusting assembly and a knife rest provided with a cutter are arranged in a cavity formed by the base and the shell, the switch assembly is electrically connected with the power supply assembly and the motor, the power supply assembly drives an output shaft of the motor to rotate, the motor drives the knife rest to rotate through the transmission assembly, an output wheel is connected to the lower end of the knife rest in a transmission manner, the knife rest and the output wheel can be movably arranged in the cavity up and down, the output wheel is connected with the transmission assembly in a transmission manner, the switch assembly comprises a starting plate and a switch having a resetting function, the starting plate can be movably arranged on the lower portion of the output wheel up and down, and the starting plate is connected with a starting switch contact through an elastic element, the switch is arranged below the starting switch contact, and when the starting plate descends to the point that the starting switch contact and the switch are mutually extruded, the switch is electrically connected with the power supply assembly and the motor.

The technical scheme of the utility model compare the beneficial effect of utensil with prior art: the pencil inserted holding down force drives the knife rest down, the knife rest drives the start-up board through the output wheel down, the start-up board passes through the starting switch contact pressing switch ware, realize switch control power supply module and motor circular telegram, the pencil is extracted, switch open circuit with reset function, realize switch control power supply module and motor outage, the starting switch contact passes through the elastic component and is connected with the start-up board, the elastic component plastic deformation produces the pretightning force, avoid the switch contact failure problem that the power instability of hand push-down pencil brought.

Further, nib thickness adjustment assembly is including hindering a piece, hinder a post and hook piece including hindering the nib, hindering a post and hindering a post, hinder a post connection hinder nib and hook piece, be equipped with the through-hole that runs through in the knife rest, hinder a post and wear to establish with sliding from top to bottom in the through-hole, the through-hole is in hinder between nib and the hook piece, the hook piece is used for preventing to hinder a piece and breaks away from in the knife rest, through technical scheme hinders the piece and goes upward the through-hole that hook piece can withstand in the knife rest, hinders the nib and can withstand the through-hole in the knife rest when hindering a piece down to deviate from in avoiding assembly and the use from in the knife rest.

Furthermore, the nib thickness adjusting assembly further comprises a block shaft, a pen stopping dial wheel and a driving assembly, the block shaft is arranged between the pen stopping block and the pen stopping dial wheel in a vertically sliding mode, a pen stopping inclined plane is arranged on the periphery of the pen stopping dial wheel, the upper end of the block shaft abuts against the lower end of the pen stopping block, the lower end of the block shaft abuts against the pen stopping inclined plane, the driving assembly is used for driving the pen stopping dial wheel to rotate, when the driving assembly drives the pen stopping dial wheel to rotate, the pen stopping inclined plane can push the pen stopping block to be at different heights through the block shaft, through the technical scheme, the pen stopping block abuts against the upper end of the block shaft, the lower end of the block shaft abuts against the pen stopping inclined plane, the driving assembly drives the pen stopping dial wheel to rotate, the block shaft is located at different height positions of the pen stopping inclined plane, the block shaft drives the pen stopping block to be at different heights, and accordingly the nib thickness is adjusted, meanwhile, the stress point between the pen stopping block and the pen stopping block shaft and the stress point between the pen stopping block shaft and the pen stopping inclined plane are both on the axis of the pen stopping block shaft, so that the pen point thickness adjusting assembly is stable in structure and not easy to damage.

Furthermore, the tool rest and the output wheel are coaxially arranged, the output wheel and the starting plate are coaxially arranged, the block resistance shaft can be vertically and slidably arranged in an inner cavity of the output wheel in a penetrating mode, the block resistance shaft and the output wheel are coaxially arranged, and through the technical scheme, the whole pressing component mechanism is located on the same line, so that the structural stability is improved.

Further, drive assembly is including dialling the piece, dial the piece with it connects to stop the thumb wheel, be equipped with on the base and stir the groove, dial the piece around it connects to stop a thumb wheel sliding fit stir on the groove, be equipped with the stopper on dialling the piece, stir the inslot be equipped with a plurality of be used for with stopper matched with spacing groove, spacing groove sets up along the slip direction interval of dialling the piece, through technical scheme dials the piece and is favorable to the user to make things convenient for the rotation to stop the thumb wheel, and the stopper cooperatees with spacing groove, is favorable to fixing the height of stopper axle on stopping a inclined plane, prevents that the high gliding of a piece that hinders.

Drawings

Fig. 1 is a sectional view of an electric pencil sharpener of the present invention;

FIG. 2 is a schematic view of a portion of an electric pencil sharpener of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural diagram of a pen stopping block;

FIG. 5 is a schematic structural diagram of a pen stopping thumb wheel;

FIG. 6 is a schematic view of the structure of the actuator plate;

description of reference numerals:

1. a cutter; 2. a tool holder; 21. a through hole; 3. a motor; 4. an output wheel; 5. a pen stopping block; 51. stopping the pen head; 52. a pen stopping column; 53. hooking the block; 6. a block shaft; 7. stopping the pen and poking the wheel; 71. stopping the pen on the inclined plane; 8. a start plate; 81. starting a switch contact; 82. an elastic member; 83. a groove; 9. a switch; 10. a shifting block; 101. a limiting block; 11. a base; 111. a poking groove; 1111. a limiting groove; 12. a housing; 121. a pen hole; 13. a power supply component; 14. and a transmission assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it should be noted that the terms "upper end", "lower end", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1-6, the utility model provides an electric pencil sharpener, which comprises a base 11 and a housing 12, wherein the housing 12 is sleeved on the base 11, a power supply assembly 13, a motor 3, a switch assembly, a transmission assembly 14, a pencil point thickness adjusting assembly and a knife rest 2 provided with a knife 1 are installed in a cavity formed by the base 11 and the housing 12, the switch assembly is electrically connected with the power supply assembly 13 and the motor 3, the power supply assembly 13 drives an output shaft of the motor 3 to rotate, the motor 3 drives the knife rest 2 to rotate through the transmission assembly 14, in this embodiment, the transmission assembly 14 is a gear assembly, the gear assembly is a conventional gear transmission, that is, the motor 3 drives the gear transmission to realize the function of the pencil sharpener, a pencil hole 121 is opened at the top of the housing 12, the pencil hole 121 is used for inserting a pencil into the knife rest 2, when a pencil is inserted, the switch assembly starts the control power supply assembly 13 and the motor 3 to be electrified, the motor 3 drives the tool rest 2 to rotate, the tool 1 cuts the pencil, and the electric pencil cutting of the pencil sharpener is realized.

Specifically, the lower end of the tool holder 2 is connected with an output wheel 4 in a transmission manner, the tool holder 2 and the output wheel 4 are movably arranged in the cavity up and down, the output wheel 4 is connected with a transmission assembly 14 in a transmission manner, the switch assembly comprises a starting plate 8 and a switch 9 with a reset function, in the embodiment, a reset spring is arranged in the switch 9, the starting plate 8 is movably sleeved on the lower portion of the output wheel 4 up and down, a starting switch contact 81 is connected onto the starting plate 8, the switch 9 is arranged below the starting switch contact 81, when the tool holder 2 is driven to move downwards by the lower pressure of the inserted pencil, the tool holder 2 drives the starting plate 8 to move downwards through the output wheel 4, the starting plate 8 presses the switch 9 through the starting switch contact 81, so that the switch 9 controls the power supply assembly 13 to be electrified with the motor 3, the pencil is pulled out, and the reset spring in the switch 9 is reset, the starting plate 8 is jacked up, and the power supply assembly 13 and the motor 3 are controlled to be powered off by the switch 9.

In order to avoid the problem of poor switch contact caused by unstable force of pressing the pencil by hand, the starting switch contact 81 is connected with the starting plate 8 through an elastic member 82, in this embodiment, a groove 83 is formed on the starting plate 8, the groove 83 enables the starting switch contact 81 to be placed on an elastic single-side cantilever, in other embodiments, the starting switch contact 81 can be connected with the starting plate 8 through the elastic member 82 arranged on the outer side of the starting plate 8, and the elastic member 82 can be plastically deformed to generate a pre-tightening force.

In order to realize that the thickness of a pen point of the pencil sharpener can be adjusted, the thickness adjusting assembly of the pen point comprises a pencil blocking block 5, a blocking block shaft 6, a pencil stopping dial wheel 7 and a driving assembly, wherein the pencil blocking block 5 can be matched in the tool rest 2 in a vertically sliding manner, the blocking block shaft 6 can be arranged between the pencil blocking block 5 and the pencil stopping dial wheel 7 in a vertically sliding manner, a pencil stopping inclined plane 71 is arranged on the periphery of the pencil stopping dial wheel 7, the upper end of the blocking block shaft 6 is abutted against the lower end of the pencil blocking block 5, the lower end of the blocking block shaft 6 is abutted against the pencil stopping inclined plane 71, the driving assembly is used for driving the pencil stopping dial wheel 7 to rotate, when the driving assembly drives the pencil stopping dial wheel 7 to rotate, the blocking block shaft 6 is positioned at different height positions of the pencil stopping inclined plane 71, the blocking block shaft 6 drives the pencil blocking block 5 to slide, so that the height of the pencil blocking block 5 is adjustable, and simultaneously, the stress point between the pencil blocking block 5 and the blocking block shaft 6 and the stress point between the blocking shaft 71 are positioned on the axis of the blocking block shaft 6, the structure of the nib thickness adjusting component is stable and is not easy to damage.

In order to avoid the pen stopping block 5 from being separated from the inside of the tool rest 2 during the assembling and using processes, the pen stopping block 5 comprises a pen stopping head 51, a pen stopping column 52 and a hook block 53, the pen stopping column 52 is connected with the pen stopping head 51 and the hook block 53, a through hole 21 penetrating through the tool rest 2 is formed in the tool rest 2, the pen stopping column 52 can be vertically and slidably arranged in the through hole 21, the through hole 21 is formed between the pen stopping head 51 and the hook block 53, in the embodiment, the hook block 53 is arranged on the side wall of the pen stopping column 52, the hook block 53 can be abutted against the through hole 21 in the tool rest 2 when the pen stopping block 5 moves upwards, and the pen stopping head 51 can be abutted against the through hole 21 in the tool rest 2 when the pen stopping block 5 moves downwards.

In order to improve the structural stability of the pencil sharpener, the tool rest 2 and the output wheel 4 are coaxially arranged, the output wheel 4 and the starting plate 8 are coaxially arranged, the block shaft 6 can be vertically and slidably arranged in an inner cavity of the output wheel 4 in a penetrating mode, the block shaft 6 and the output wheel 4 are coaxially arranged, and the whole pressing component mechanism is located on the same line.

Stop a thumb wheel 7 in order to do benefit to user's convenient rotation, drive assembly includes and dials piece 10 in this embodiment dial piece 10 with stop a thumb wheel 7 and pass through the rack toothing transmission and connect, be equipped with on the base 11 and stir groove 111, dial piece 10 winds stop a thumb wheel 7 sliding fit and connect stir on the groove 111, be equipped with stopper 101 on the dial piece 10, be equipped with a plurality of spacing grooves 1111 on stirring the groove 111, spacing groove 1111 sets up along the slip direction interval of dial piece 10, when stopper 101 cooperation is in arbitrary one spacing groove 1111, hinders on block axle 6 can fix the different height on stopping a inclined plane 71, has prevented to hinder a 5 high downslide of block.

When the pencil holder is used, the poking block 10 is adjusted, the poking block 10 slides in the poking groove 111 around the pencil stopping poking wheel 7, the poking block 10 drives the pencil stopping poking wheel 7 to rotate through the rack, the pencil stopping inclined plane 71 on the periphery of the pencil stopping poking wheel 7 rotates, the limiting block 101 is clamped in any limiting groove 1111, the block shaft 6 stops at different heights of the pencil stopping inclined plane 71, the block shaft 6 drives the pencil block 5 to slide to realize the adjustment of the thickness of a pencil point, then a pencil is inserted into the pencil holder 2 through the pencil hole 121 on the shell 12, the pencil holder 2 descends after being subjected to the action of downward pressure, the output wheel 4 descends after being subjected to the downward pressure of the pencil holder 2, the starting plate 8 descends after being subjected to the downward pressure of the output wheel 4, then the starting switch contact 81 extrudes the switch 9, the switch 9 is conducted by the switch 9 after the elastic piece 82 deforms and the acting force to be deformed is greater than the starting force of the switch 9, the motor 3 is started, electric energy is converted into kinetic energy, the driving gear assembly rotates and drives the tool rest 2 to rotate through the output wheel 4, the cutter 1 on the tool rest 2 rotates to cut a pencil, after a pencil lead is sharpened, the resistance block 5 is propped to descend, the resistance block shaft 6 is propped to stop the inclined plane 71 to stop the pencil and not descend any more under the action of the resistance block 5, the pencil is not descended any more, the tool rest 2 cannot cut the pencil to idle, the cutting process is completed, the pencil is pulled out, a reset spring in the switch 9 resets, the starting plate 8 is jacked up in sequence, the output wheel 4 and the tool rest 2 are disconnected, a circuit is disconnected, and the pencil sharpener stops working.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An electric pencil sharpener comprises a base (11) and a shell (12), wherein the shell (12) is sleeved on the base (11), a cavity formed by the base (11) and the shell (12) is internally provided with a power supply component (13), a motor (3), a switch component, a transmission component (14), a pencil point thickness adjusting component and a knife rest (2) provided with a cutter (1), the switch component is electrically connected with the power supply component (13) and the motor (3), the power supply component (13) drives an output shaft of the motor (3) to rotate, the motor (3) drives the knife rest (2) to rotate through the transmission component (14), the electric pencil sharpener is characterized in that the lower end of the knife rest (2) is connected with an output wheel (4) in a transmission way, the knife rest (2) and the output wheel (4) can be movably arranged in the cavity up and down, and the output wheel (4) is in transmission connection with the transmission component (14), the switch assembly comprises a starting plate (8) and a switch (9) with a reset function, the starting plate (8) can be sleeved on the lower portion of the output wheel (4) in a vertically movable mode, the starting plate (8) is connected with a starting switch contact (81) through an elastic piece (82), the switch (9) is arranged below the starting switch contact (81), and when the starting plate (8) descends to the time when the starting switch contact (81) and the switch (9) are mutually extruded, the switch (9) is electrically conducted with the power supply assembly (13) and the motor (3).

2. The electric pencil sharpener according to claim 1, wherein the pencil point thickness adjusting assembly comprises a pencil blocking block (5), the pencil blocking block (5) comprises a pencil blocking head (51), a pencil blocking column (52) and a hook block (53), the pencil blocking column (52) is connected with the pencil blocking head (51) and the hook block (53), a through hole (21) is formed in the tool rest (2), the pencil blocking column (52) can be slidably arranged in the through hole (21) up and down, the through hole (21) is formed between the pencil blocking head (51) and the hook block (53), and the hook block (53) is used for preventing the pencil blocking block (5) from being separated from the tool rest (2).

3. The electric pencil sharpener according to claim 2, wherein the pencil point thickness adjusting assembly further comprises a block shaft (6), a pencil stopping thumb wheel (7) and a driving assembly, the block shaft (6) is slidably arranged between the block (5) and the pencil stopping thumb wheel (7) up and down, a pencil stopping inclined plane (71) is arranged on the periphery of the pencil stopping thumb wheel (7), the upper end of the block shaft (6) abuts against the lower end of the block (5), the lower end of the block shaft (6) abuts against the pencil stopping inclined plane (71), the driving assembly is used for driving the pencil stopping thumb wheel (7) to rotate, and when the driving assembly drives the pencil stopping thumb wheel (7) to rotate, the pencil stopping inclined plane (71) can push the pencil stopping block (5) to be at different heights through the block shaft (6).

4. An electric pencil sharpener as claimed in claim 3, characterised in that the tool holder (2) is arranged coaxially with the output wheel (4), the output wheel (4) is arranged coaxially with the activation plate (8), the stop shaft (6) is slidably arranged up and down through the inner cavity of the output wheel (4), and the stop shaft (6) is arranged coaxially with the output wheel (4).

5. The electric pencil sharpener according to claim 3, wherein the driving assembly comprises a dial block (10), the dial block (10) is connected with the pencil stopping dial wheel (7), a dial groove (111) is formed in the base (11), the dial block (10) is connected to the dial groove (111) in a sliding fit mode around the pencil stopping dial wheel (7), a limit block (101) is arranged on the dial block (10), a plurality of limit grooves (1111) matched with the limit block (101) are formed in the dial groove (111), and the limit grooves (1111) are arranged at intervals along the sliding direction of the dial block (10).