CN104044390B - Electric pencil sharpener - Google Patents
Electric pencil sharpener Download PDFInfo
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- CN104044390B CN104044390B CN201410288957.0A CN201410288957A CN104044390B CN 104044390 B CN104044390 B CN 104044390B CN 201410288957 A CN201410288957 A CN 201410288957A CN 104044390 B CN104044390 B CN 104044390B
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Abstract
One electric pencil sharpener of the present invention, including body, motor, transmission component, cutting assembly and knife rest, also include circuit control device, disconnected core liftout attachment and anti-lip pencil thing tumbler, circuit control device includes the first switch module and second switch assembly, motor, the first switch module, second switch assembly concatenate through wire, first switch module is arranged on lip pencil thing and stretches porch, and second switch assembly is arranged on above motor, and disconnected core liftout attachment is arranged on above second switch assembly；Anti-lip pencil thing tumbler is located at lip pencil thing and stretches in mouth, and anti-lip pencil thing tumbler controls being turned on and off of the first switch module。Being provided with two switch modules, after point degree reaches certain standard, second switch assembly disconnects, and stops planing；Basis is internal sets disconnected core liftout attachment, adopts the principle of lever, and disconnected the dropping in knife rest of pen core also can be easily removed；Also has anti-lip pencil thing advantage such as rotation in working angles。The invention belongs to planing device technical field。
Description
Technical field
The present invention relates to a kind of planing device, the power-off that has relating more specifically to fine away a kind of end to lip pencil thing stops the electric pencil sharpener of function。
Background technology
Existing general electric pencil sharpener is when fining away to the lip pencil thing of pencil etc, often only with user feel judge whether fine away, the sharp degree planing so easily causing lip pencil thing not or is planed excessively, the former point degree planing needs again to be placed in Knife for stripping cable by lip pencil thing not and is further continued for planing, time consumption and energy consumption virtually；And the planing of the latter's lip pencil thing is excessively, easily causes pen core and disconnect or strengthen its consumptive material。In addition when existing electric pencil-sharpener is fined away, ubiquity can not regulate the thickness of the lip pencil thing of pencil etc, and often the sensation with user judges thickness；Additionally, when sharpening the point of a pencil, disconnected the dropping in knife rest of the pencil-lead of pencil end is blocked by blade again, it is difficult to taken out by disconnected core, only by firmly knocking pencil sharpener, but so fragile pencil sharpener。Electric pencil sharpener, when the lip pencil thing of pencil etc is fined away, generally requires and pinches pencil by user, in case pencil skids and cannot complete to fine away。Such as big staff is perspired, it is impossible to pinching pencil, especially for the child that the age is less, for instance the child of kindergarten, their strength is big not, it is impossible to pinches pencil and makes it non-slip in tipping process。
Therefore, it is necessary to provide one to ensure, point degree is automatically stopped planing after reaching certain standard, also can be drawn off easily in knife rest when pen core breaks to drop on, and can also prevent the electric pencil-sharpener that lip pencil thing rotates in working angles。
Summary of the invention
The technical problem to be solved is: provide a kind of point degree to be automatically stopped planing after reaching certain standard, and pen core breaks to drop on and also can be easily removed in knife rest, moreover it is possible to prevent the electric pencil sharpener that lip pencil thing rotates。
The technical solution used in the present invention is: a kind of electric pencil sharpener, including body, motor, transmission component, cutting assembly and knife rest, described knife rest offers the planing chamber stretched into for lip pencil thing, described cutting assembly is fixed on knife rest and cutting edge portion stretches into described planing intracavity and lip pencil thing is planed, described knife rest is vertically provided on body, bodies top directly over knife rest is provided with lip pencil thing and stretches into mouth, and knife rest is through transmission component and motor linkage；Electric pencil sharpener also includes circuit control device, disconnected core liftout attachment and anti-lip pencil thing tumbler, circuit control device includes the first switch module and second switch assembly, motor, the first switch module, second switch assembly concatenate through wire, first switch module is arranged on lip pencil thing and stretches porch, second switch assembly is arranged on above motor, and disconnected core liftout attachment is arranged on above second switch assembly；Anti-lip pencil thing tumbler is located at lip pencil thing and stretches in mouth, and anti-lip pencil thing tumbler controls being turned on and off of the first switch module。
The first described switch module includes the first conducting strip, the second conducting strip, the first conducting strip and the second conducting strip and is positioned at lip pencil thing and stretches into the side of mouth, and the second conducting strip is zigzag, and the free end of the second conducting strip faces the side of the first conducting strip。
Described anti-lip pencil thing tumbler includes the U-shaped shell fragment being made up of left holder and right holder, left holder and right holder are equipped with Non-slip material, left holder is connected with right holder afterbody and reverses one annular sleeve of formation, body interior is provided with a limited post in the corresponding position, annular sleeve position of U-shaped shell fragment, U-shaped shell fragment is enclosed within limited post by annular sleeve, and the free end of left holder or right holder is fixed on body；Forming lip pencil thing clamp port between left holder and right holder, clamp port is positioned at lip pencil thing and stretches into the lower section of mouth；The gap size of clamp port is less than the diameter of lip pencil thing。
Also including the first conducting strip and the second conducting strip, left holder and body are fixedly linked, and it is inconsistent that the free end of right holder connects a pushing block, pushing block and the second conducting strip, and right holder can drive the second conducting strip close to the first conducting strip。
Described transmission component includes gear train, installs rotation seat, gear train is respectively at motor and installs the engagement linkage of rotation seat gear, install and rotate the underface being positioned at knife rest, rotation seat is installed and is provided with cross bore, knife rest lower end is provided with the cross matched with cross bore, the lower end of knife rest is plugged on installation rotation seat, and knife rest links with installing rotation seat circumference；Installing the vertically communicated setting of cross bore of rotation seat, the cross of knife rest lower end is provided with through hole and communicates with the planing chamber of knife rest, installs and is provided with the thimble that can move up and down in the cross bore of rotation seat, and thimble upper end communicates with planing chamber。
Described second switch assembly includes the 3rd conducting strip, the 4th conducting strip, push rod, swing arm, 3rd conducting strip is positioned at above the 4th conducting strip, push rod is vertically arranged, the upper end of push rod is fixed on the 3rd conducting strip, the lower end of push rod is connected with one end of swing arm, and the middle part of swing arm is hinged on body。
Also including thimble, the other end of swing arm is connected with the lower end of thimble。
Described disconnected core liftout attachment includes by compressing switch, forniciform elastomeric element, contact and push rod is included by compressing switch, described contact is arranged on the upper surface of elastomeric element, push rod is vertically arranged and is arranged on the lower surface of elastomeric element, the top of body is provided with a through hole holding contact, contact is placed in outside bodies top, and one end of elastomeric element is fixed in inner body wall。
Also including the 3rd conducting strip, the lower end of push rod faces the upper surface of the 3rd conducting strip。
Being provided with the scrap discharge lid being plugged on body outside described knife rest, scrap discharge lid links one and protects switch, and protection switch is arranged on lip pencil thing and stretches porch, near the first switch module；Protection switch includes moving block and sliding shoe; one end of described moving block is hinged on body and can horizontal hunting; the other end of moving block is between the first conducting strip and inner body wall; sliding shoe is slidably fitted on body; the inner of sliding shoe and the back of moving block offset, and the outer end of sliding shoe and scrap discharge lid inwall offset。
The invention has the beneficial effects as follows: electric pencil sharpener of the present invention, be provided with two switch modules, after point degree reaches certain standard, second switch assembly disconnects, and stops planing；This is internal sets disconnected core liftout attachment, second switch assembly and disconnected core liftout attachment are combined, adopt the principle of lever, also can be easily removed in knife rest when pen core breaks to drop on；The anti-lip pencil thing tumbler being additionally provided with is avoided that lip pencil thing advantage such as rotation in working angles。
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention。
Fig. 2 is present invention schematic diagram when removing scrap discharge lid。
Fig. 3 is present invention schematic diagram when removing scrap discharge lid and knife rest。
Fig. 4 is that knife rest of the present invention and lip pencil thing are in conjunction with schematic diagram。
Fig. 5 is cross-sectional schematic of the present invention。
Fig. 6 is that the present invention removes schematical top view。
Fig. 7 is for by the schematic diagram that compresses switch。
Fig. 8 is inner side elevational view of the present invention。
In figure, 1, body, 1.1, lip pencil thing stretches into mouth, 1.2, limited post, 2, motor, 3.1, gear train, 3.2, rotation seat is installed, 3.2.1, cross bore, 4, cutting assembly, 5, knife rest, 5.1, cross, 6, lip pencil thing, 7.1, first conducting strip, 7.2, second conducting strip, 8.1, left holder, 8.2, right holder, 8.3, Non-slip material, 8.4, annular sleeve, 8.5, clamp port, 8.6, pushing block, 9.1, 3rd conducting strip, 9.2, 4th conducting strip, 9.3, push rod, 9.4, swing arm, 9.5, thimble, 10, by compressing switch, 10.1, elastomeric element, 10.2, contact, 10.3, push rod, 11, scrap discharge lid, 12.1, moving block, 12.2, sliding shoe。
Detailed description of the invention
With reference to shown in Fig. 1-Fig. 8, a kind of electric pencil sharpener, including body 1, motor 2, transmission component, cutting assembly 4 and knife rest 5, described knife rest 5 offers the planing chamber stretched into for lip pencil thing 6, described cutting assembly 4 is fixed on knife rest 5 and cutting edge portion stretches into described planing intracavity and lip pencil thing 6 is planed, described knife rest 5 is vertically provided on body 1, body 1 top directly over knife rest 5 is provided with lip pencil thing and stretches into mouth 1.1, knife rest 5 links through transmission component and motor 2, electric pencil sharpener also includes circuit control device, disconnected core liftout attachment and anti-lip pencil thing tumbler, circuit control device includes the first switch module and second switch assembly, motor 2, first switch module, second switch assembly concatenates through wire, first switch module is arranged on lip pencil thing and stretches into mouth 1.1 place, second switch assembly is arranged on above motor 2, disconnected core liftout attachment is arranged on above second switch assembly；Anti-lip pencil thing tumbler is located at lip pencil thing and stretches in mouth 1.1, and anti-lip pencil thing tumbler controls being turned on and off of the first switch module。It is additionally provided with battery installation cavity in body 1, in installation cavity, is provided with accumulator, electrically connected with motor 2 by wire。
The first described switch module includes first conducting strip the 7.1, second conducting strip 7.2, first conducting strip 7.1 and the second conducting strip 7.2 are positioned at lip pencil thing and stretch into the side of mouth 1.1, second conducting strip 7.2 is in zigzag, and the free end of the second conducting strip 7.2 faces the side of the first conducting strip 7.1。
Described anti-lip pencil thing tumbler includes the U-shaped shell fragment being made up of left holder 8.1 and right holder 8.2, left holder 8.1 and right holder 8.2 are equipped with Non-slip material 8.3, left holder 8.1 is connected with right holder 8.2 afterbody and reverses one annular sleeve 8.4 of formation, body 1 is internal is provided with a limited post 1.2 in the corresponding position, annular sleeve 8.4 position of U-shaped shell fragment, U-shaped shell fragment is enclosed within limited post 1.2 by annular sleeve 8.4, and the free end of left holder 8.1 or right holder 8.2 is fixed on body 1；Forming the clamp port 8.5 of lip pencil thing 6 between left holder 8.1 and right holder 8.2, clamp port 8.5 is positioned at lip pencil thing and stretches into the lower section of mouth 1.1；The gap size of clamp port 8.5 is less than the diameter of lip pencil thing 6。
Also include the first conducting strip 7.1 and the second conducting strip 7.2, left holder 8.1 is fixedly linked with body 1, the free end of right holder 8.2 connects a pushing block 8.6, and pushing block 8.6 and the second conducting strip 7.2 are inconsistent, and right holder 8.2 can drive the second conducting strip 7.2 close to the first conducting strip 7.1。
Described transmission component includes gear train 3.1, installs rotation seat 3.2, gear train 3.1 is respectively at motor 2 and installs the engagement linkage of rotation seat 3.2 gear, install and rotate seat 3.2 in the underface of knife rest 5, rotation seat 3.2 is installed and is provided with cross bore 3.2.1, knife rest 5 lower end is provided with the cross 5.1 matched with cross bore 3.2.1, and the lower end of knife rest 5 is plugged on installation rotation seat 3.2, and knife rest 5 links with installing rotation seat 3.2 circumference, cross connects realization and circumferentially rotates, and substantially increases the reliability of transmission；The vertically communicated setting of cross bore 3.2.1 of rotation seat 3.2 is installed, the cross 5.1 of knife rest 5 lower end is provided with through hole and communicates with the planing chamber of knife rest 5, installing and be provided with the thimble 9.5 that can move up and down in the cross bore 3.2.1 of rotation seat 3.2, thimble 9.5 upper end communicates with planing chamber。
Described second switch assembly includes the 3rd conducting strip the 9.1, the 4th conducting strip 9.2, push rod 9.3, swing arm 9.4,3rd conducting strip 9.1 is positioned at above the 4th conducting strip 9.2, push rod 9.3 is vertically arranged, the upper end of push rod 9.3 is fixed on the 3rd conducting strip 9.1, the lower end of push rod 9.3 is connected with one end of swing arm 9.4, and the middle part of swing arm 9.4 is hinged on body 1。
Also including thimble 9.5, the other end of swing arm 9.4 is connected with the lower end of thimble 9.5。
Described disconnected core liftout attachment includes by compressing switch 10,10 forniciform elastomeric element 10.1, contact 10.2 and push rod 10.3 is included by compressing switch, described contact 10.2 is arranged on the upper surface of elastomeric element 10.1, push rod 10.3 is vertically arranged and is arranged on the lower surface of elastomeric element 10.1, the top of body 1 is provided with a through hole holding contact 10.2, contact 10.2 is placed in outside body 1 top, and one end of elastomeric element 10.1 is fixed on body 1 inwall。
Also including the 3rd conducting strip 9.1, the lower end of push rod 10.3 faces the upper surface of the 3rd conducting strip 9.1。
Being provided with the scrap discharge lid 11 being plugged on body 1 outside described knife rest 5, scrap discharge lid 11 links one and protects switch, and protection switch is arranged on lip pencil thing and stretches into mouth 1.1 place, near the first switch module；Protection switch includes moving block 12.1 and sliding shoe 12.2; one end of described moving block 12.1 is hinged on body 1 and can horizontal hunting; the other end of moving block 12.1 is between the first conducting strip 7.1 and body 1 inwall; sliding shoe 12.2 is slidably fitted on body 1; the back of the inner of sliding shoe 12.2 and moving block 12.1 offsets, and the outer end of sliding shoe 12.2 and scrap discharge lid 11 inwall offset。In working angles, miss and scrap discharge lid 11 is unpluged, the outer end of sliding shoe 12.2 is no longer influenced by scrap discharge lid 11 and withstands, moving block 12.1 moves laterally under the elastic reaction of the first conducting strip 7.1 self, first conducting strip 7.1 is separated with the second conducting strip 7.2, circuit disconnects, and stops cutting。Therefore this structure serves the function of protection switch。
During original state of the present invention, connection or position relationship between each critical piece are as follows, and as shown in Figure 6, the first conducting strip 7.1 does not have the free end of the second conducting strip 7.2 to contact, sliding shoe 12.2 fixes on the back of moving block 12.1, and moving block 12.1 can prevent the first conducting strip 7.1 from flicking laterally；Shown in Fig. 5, the 3rd conducting strip 9.1 and the 4th conducting strip 9.2 contact with each other, the 3rd conducting strip 9.1 not with by compress switch 10 push rod 10.3 contact, the lower end of thimble 9.5 contacts with swing arm 9.4。
The operation principle of the present invention is: the lip pencil thing that lip pencil thing 6 inserts body 1 stretches into mouth 1.1, lip pencil thing 6 passes from the clamp port 8.5 of anti-lip pencil thing tumbler, owing to the diameter of lip pencil thing 6 is more than the gap of clamp port 8.5, so right holder 8.2 is pushed open by lip pencil thing 6, the pushing block 8.6 being connected with right holder 8.2 drives the second conducting strip 7.2 close to the first conducting strip 7.1, free end and first conducting strip 7.1 of the second conducting strip 7.2 contact, circuit ON, motor 2 is started working, installation rotation seat 3.2 is driven to rotate through gear train 3.1, rotation seat 3.2 band movable knife rack 5 is installed rotate, start lip pencil thing 6 is cut, lip pencil thing 6 is clamped by left holder 8.1 and right holder 8.2, can prevent lip pencil thing 6 from rotating。Along with the end of lip pencil thing 6 is cut thinner and thinner, lip pencil thing 6 moving downward slowly, thimble 9.5 can be pushed up downwards by the pencil-lead of lip pencil thing 6 end, thimble 9.5 moves downward, top is to one end of swing arm 9.4, the other end making swing arm 9.4 sticks up, this end that swing arm 9.4 sticks up drives push rod 9.3 to move upward, push rod 9.3 moves upward and drives the 3rd conducting strip 9.1 to separate the 4th conducting strip 9.2, circuit disconnects, motor 2 quits work, and stock removal action stops, and completes automatic hold function after cutting completes。During cutting lip pencil thing 6, occur pen core to break and fall and be stuck in knife rest 5, the contact 10.2 at pressing body 1 top, contact 10.2 moves downward, extrude the 3rd conducting strip 9.1 through push rod 10.3 to move downward, 3rd conducting strip 9.1 drives push rod 9.3 to move downward, one end of swing arm 9.4 is pressed by the lower end of push rod 9.3, the other end of swing arm 9.4 sticks up, and this end that swing arm 9.4 sticks up drives thimble 9.5 to move upward, owing to pen core is located on thimble 9.5, therefore, moving upward of thimble 9.5, just can loosen the pen core top blocked, conveniently pour out。
Claims (9)
1. an electric pencil sharpener, including body (1), motor (2), transmission component, cutting assembly (4) and knife rest (5), described knife rest (5) offers the planing chamber stretched into for lip pencil thing (6), described cutting assembly (4) is fixed on knife rest (5) and cutting edge portion stretches into described planing intracavity and lip pencil thing (6) is planed, described knife rest (5) is vertically provided on body (1), body (1) top directly over knife rest (5) is provided with lip pencil thing and stretches into mouth (1.1), knife rest (5) is through transmission component and motor (2) linkage, it is characterized in that: electric pencil sharpener also includes circuit control device, disconnected core liftout attachment and anti-lip pencil thing tumbler, circuit control device includes the first switch module and second switch assembly, motor (2), first switch module, second switch assembly concatenates through wire, first switch module is arranged on lip pencil thing and stretches into mouth (1.1) place, second switch assembly is arranged on motor (2) top, disconnected core liftout attachment is arranged on above second switch assembly；Anti-lip pencil thing tumbler is located at lip pencil thing and stretches in mouth (1.1), and anti-lip pencil thing tumbler controls being turned on and off of the first switch module；The first described switch module includes the first conducting strip (7.1), the second conducting strip (7.2), first conducting strip (7.1) and the second conducting strip (7.2) are positioned at lip pencil thing and stretch into the side of mouth (1.1), second conducting strip (7.2) is in zigzag, and the free end of the second conducting strip (7.2) faces the side of the first conducting strip (7.1)。
2. electric pencil sharpener according to claim 1, it is characterized in that: described anti-lip pencil thing tumbler includes the U-shaped shell fragment being made up of left holder (8.1) and right holder (8.2), left holder (8.1) and right holder (8.2) are equipped with Non-slip material (8.3), left holder (8.1) is connected with right holder (8.2) afterbody and reverses one annular sleeve (8.4) of formation, body (1) is internal is provided with a limited post (1.2) in annular sleeve (8.4) corresponding position, position of U-shaped shell fragment, U-shaped shell fragment is enclosed within limited post (1.2) by annular sleeve (8.4), the free end of left holder (8.1) or right holder (8.2) is fixed on body (1)；Forming the clamp port (8.5) of lip pencil thing (6) between left holder (8.1) and right holder (8.2), clamp port (8.5) is positioned at lip pencil thing and stretches into the lower section of mouth (1.1)；The gap size of clamp port (8.5) is less than the diameter of lip pencil thing (6)。
3. electric pencil sharpener according to claim 2, it is characterized in that: also include the first conducting strip (7.1) and the second conducting strip (7.2), left holder (8.1) and body (1) are fixedly linked, the free end of right holder (8.2) connects a pushing block (8.6), pushing block (8.6) is inconsistent with the second conducting strip (7.2), and right holder (8.2) can drive the second conducting strip (7.2) close to the first conducting strip (7.1)。
4. electric pencil sharpener according to claim 1, it is characterized in that: described transmission component includes gear train (3.1), rotation seat (3.2) is installed, gear train (3.1) is respectively at motor (2) and installs the engagement linkage of rotation seat (3.2) gear, install and rotate seat (3.2) in the underface of knife rest (5), rotation seat (3.2) is installed and is provided with cross bore (3.2.1), knife rest (5) lower end is provided with the cross (5.1) matched with cross bore (3.2.1), the lower end of knife rest (5) is plugged in installation rotation seat (3.2), knife rest (5) links with installing rotation seat (3.2) circumference；Cross bore (3.2.1) the vertically communicated setting of rotation seat (3.2) is installed, the cross (5.1) of knife rest (5) lower end is provided with through hole and the planing chamber with knife rest (5) communicates, installing and be provided with the thimble (9.5) that can move up and down in the cross bore (3.2.1) of rotation seat (3.2), thimble (9.5) upper end communicates with planing chamber。
5. electric pencil sharpener according to claim 1, it is characterized in that: described second switch assembly includes the 3rd conducting strip (9.1), the 4th conducting strip (9.2), push rod (9.3), swing arm (9.4), 3rd conducting strip (9.1) is positioned at the 4th conducting strip (9.2) top, push rod (9.3) is vertically arranged, the upper end of push rod (9.3) is fixed on the 3rd conducting strip (9.1), the lower end of push rod (9.3) is connected with one end of swing arm (9.4), and the middle part of swing arm (9.4) is hinged on body (1)。
6. electric pencil sharpener according to claim 5, it is characterised in that: also including thimble (9.5), the other end of swing arm (9.4) is connected with the lower end of thimble (9.5)。
7. electric pencil sharpener according to claim 1, it is characterized in that: described disconnected core liftout attachment includes by compress switch (10), forniciform elastomeric element (10.1) is included by compress switch (10), contact (10.2) and push rod (10.3), described contact (10.2) is arranged on the upper surface of elastomeric element (10.1), push rod (10.3) is vertically arranged and is arranged on the lower surface of elastomeric element (10.1), the top of body (1) is provided with a through hole holding contact (10.2), contact (10.2) is placed in outside body (1) top, one end of elastomeric element (10.1) is fixed on body (1) inwall。
8. electric pencil sharpener according to claim 7, it is characterised in that: also including the 3rd conducting strip (9.1), the lower end of push rod (10.3) faces the upper surface of the 3rd conducting strip (9.1)。
9. electric pencil sharpener according to claim 1; it is characterized in that: described knife rest (5) outside is provided with the scrap discharge lid (11) being plugged on body (1); scrap discharge lid (11) links one and protects switch; protection switch is arranged on lip pencil thing and stretches into mouth (1.1) place, near the first switch module；Protection switch includes moving block (12.1) and sliding shoe (12.2); it is upper and can horizontal hunting that one end of described moving block (12.1) is hinged on body (1); the other end of moving block (12.1) is positioned between the first conducting strip (7.1) and body (1) inwall; sliding shoe (12.2) is slidably fitted on body (1); the back of the inner of sliding shoe (12.2) and moving block (12.1) offsets, and the outer end of sliding shoe (12.2) and scrap discharge lid (11) inwall offset。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288957.0A CN104044390B (en) | 2014-06-17 | 2014-06-17 | Electric pencil sharpener |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288957.0A CN104044390B (en) | 2014-06-17 | 2014-06-17 | Electric pencil sharpener |
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| CN104044390A CN104044390A (en) | 2014-09-17 |
| CN104044390B true CN104044390B (en) | 2016-06-22 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105711308B (en) * | 2016-01-20 | 2017-06-27 | 欧园园 | A kind of hand electric pencil sharpener |
| CN105691068B (en) * | 2016-04-20 | 2017-04-05 | 淄博职业学院 | The English exam card-smearing writing appliance penknife and its using method of electrical circuit detection stalling |
| CN105856929B (en) * | 2016-04-20 | 2017-06-23 | 淄博职业学院 | The adjustable English exam card-smearing writing appliance penknife of cutting degree and its application method |
| CN109662491B (en) * | 2019-01-10 | 2021-04-06 | 夏豆豆 | Physical experiment equipment storage cabinet capable of preventing equipment from inclining |
| CN111169206B (en) * | 2020-03-11 | 2024-06-14 | 三木控股集团有限公司 | Electric safety pencil sharpener |
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| CN2585769Y (en) * | 2002-11-12 | 2003-11-12 | 秦莹 | Automatic pencil sharpening machine |
| CN1760042A (en) * | 2004-10-13 | 2006-04-19 | 株式会社Ktf | Pencil sharpener |
| CN203888489U (en) * | 2014-06-17 | 2014-10-22 | 娄宗茂 | Electric pencil sharpener |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019388A (en) * | 2000-07-05 | 2002-01-23 | Seiko Epson Corp | Stationery |
| JP4206405B2 (en) * | 2005-09-08 | 2009-01-14 | 株式会社アスカ | Electric pencil sharpener |
| US20110186178A1 (en) * | 2007-12-21 | 2011-08-04 | Shen-Hsiung Chang | Safety device for an electric pencil sharpener |
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- 2014-06-17 CN CN201410288957.0A patent/CN104044390B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2585769Y (en) * | 2002-11-12 | 2003-11-12 | 秦莹 | Automatic pencil sharpening machine |
| CN1760042A (en) * | 2004-10-13 | 2006-04-19 | 株式会社Ktf | Pencil sharpener |
| CN203888489U (en) * | 2014-06-17 | 2014-10-22 | 娄宗茂 | Electric pencil sharpener |
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