CN211441756U - Novel electric adjustable pencil sharpener - Google Patents
Novel electric adjustable pencil sharpener Download PDFInfo
- Publication number
- CN211441756U CN211441756U CN201922476897.6U CN201922476897U CN211441756U CN 211441756 U CN211441756 U CN 211441756U CN 201922476897 U CN201922476897 U CN 201922476897U CN 211441756 U CN211441756 U CN 211441756U
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- roller cutter
- cutting frame
- motor
- feeding
- pencil
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- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 241000237983 Trochidae Species 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 39
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 abstract description 6
- 230000037431 insertion Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model relates to a novel electric adjustable pencil sharpener, which comprises a top shell, wherein the top shell is provided with pencil insertion holes which are communicated up and down, a cutting frame is arranged on a cutting mechanism, the cutting frame comprises an upper cutting frame which is sequentially connected from top to bottom, the pencil sharpener comprises a support frame and a lower sharpening frame, wherein a roller cutter is arranged between the upper sharpening frame and the lower sharpening frame, a first hole which is communicated from top to bottom is formed in the roller cutter, a first roller cutter shaft is arranged in the first hole, a second hole which is communicated from top to bottom is formed in the first roller cutter shaft, a second roller cutter shaft is arranged in the second hole, an angle adjusting hole and an angle adjusting device for changing the inclination angle of the roller cutter are formed in the upper sharpening frame, the base is of a cavity structure with an upper end open, the sharpening frame is erected on the base, and a sharpening frame rotating mechanism for driving the sharpening frame to rotate and a roller cutter rotating mechanism for driving the first roller cutter shaft to rotate are arranged in the base.
Description
Technical Field
The utility model relates to a pencil sharpener technical field, concretely relates to novel electric adjustable pencil sharpener.
Background
The pencil sharpener is a tool for sharpening a pencil commonly used by people, in the prior art, various types of pencil sharpeners are numerous and diversified in color and shape, and in the commonly used electric pencil sharpener, a user inserts the pencil into a pencil hole and drives the blade to rotate through the motor to sharpen the pencil.
The pencil is used according to different requirements, for example, the pencil shape cut by a conventional pencil sharpener is mainly used for writing, the pencil head needs to be cut into a slender shape when the pencil is used for drawing, the length of the pencil head is much longer than that of the head of a common pencil, and people have different requirements on pencil conicity according to different fields, such as visibility, drawing, art designing and the like. At present, however, there are few electric penknives that adjust the taper of the pencil head according to the needs of the user.
SUMMERY OF THE UTILITY MODEL
According to prior art not enough, the utility model aims at providing a novel electronic adjustable penknife not only can cut the pencil, can also change the tapering of the pencil of cutting according to the user's demand to improve the suitability.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a novel electric adjustable pencil sharpener, comprising:
the top shell is provided with a pencil jack which is communicated up and down;
the cutting mechanism is arranged below the top shell and comprises an outer cover and a cutting frame, the top shell is placed at the top of the outer cover, the cutting frame comprises an upper cutting frame, a supporting frame and a lower cutting frame which are sequentially connected from top to bottom, the roller cutter is arranged between the upper cutting frame and the lower cutting frame, a first hole which is communicated up and down is arranged in the roller cutter, a first roller cutter shaft is arranged in the first hole, a second hole which is communicated up and down is arranged on the first roller cutter shaft, a second roller cutter shaft is arranged in the second hole, an angle adjusting hole and an angle adjusting device for changing the inclination angle of the roller cutter are arranged on the upper cutting frame, the angle adjusting device comprises a screw rod and an adjusting motor for driving the screw rod to rotate, the screw rod is provided with a first slide block, the top of the second roller cutter shaft penetrates through the angle adjusting hole and is connected with the bottom of the first sliding block through a ball;
the base is a cavity structure with an opening at the upper end, the cutting frame is erected on the base, and a roller cutter rotating mechanism for driving the cutting frame to rotate and a roller cutter rotating mechanism for driving the first roller cutter shaft to rotate are arranged in the base.
Further, still be equipped with the feeding device who promotes the pencil and go up and down in the top shell, feeding device is including feeding the chamber, feeding motor, it fixes to feed the chamber on the top shell, the pencil jack is established on feeding the chamber, it is equipped with two rows of vertical distribution and the gyro wheel of certain distance in interval to feed the intracavity, feeding motor installs on feeding the chamber and output shaft and one the pivot connecting band of gyro wheel moves the gyro wheel rotates, install first drive gear on feeding motor's the output shaft, other the pivot of gyro wheel is stretched out feed the chamber and install second drive gear, first drive gear drives a plurality ofly through third drive gear second drive gear rotates.
Further, cutting frame slewing mechanism includes cutting frame rotation motor and driving medium, the cutting frame rotates the motor and installs the base bottom, the vertical setting of output shaft that the cutting frame rotated the motor just installs fourth drive gear, the driving medium top with the lower cutting frame is fixed, the bottom be equipped with the ring gear of fourth drive gear internal gearing.
Further, the roller cutter rotating mechanism comprises a roller cutter rotating motor, the roller cutter rotating motor is installed in the middle of the transmission part, and an output shaft of the roller cutter rotating motor vertically penetrates out of the lower cutting frame and is connected with the first roller cutter shaft through a universal coupling.
Further, a grinding wheel mounted on the first roller cutter shaft is arranged below the roller cutter, a moving groove is formed in the lower cutting frame, an output shaft of a roller cutter rotating motor can move in the moving groove, a linear motor is arranged in the middle of the transmission part, a second sliding block is arranged on the output shaft of the linear motor, and the roller cutter rotating motor is mounted on the second sliding block.
Further, novel electronic adjustable penknife still includes display screen and control panel, the display screen passes through the support mounting on the base, the control panel with display screen, feed motor, adjustment motor, cutting frame rotate the motor, the gyro wheel sword rotates the motor and the linear electric motor electricity is connected.
Further, the control panel is a single chip microcomputer.
Further, the display screen is a full liquid crystal touch display screen.
Further, the outer cover is made of transparent hard materials.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
1. a novel electronic adjustable penknife, rotate the gyro wheel sword of this device that the motor drove through the cutting frame and rotate the motor and rotate, let spiral blade on it can cut the pencil.
2. A novel electronic adjustable penknife, through setting up the feed motor, can be as required automatic rising pencil voluntarily, this device designs four feed wheels, can make the body of a pen keep vertical and stable to be equipped with the rubber sleeve on the feed wheel, conveniently press from both sides tight pencil.
3. A novel electronic adjustable penknife, be equipped with angular adjustment device, conveniently adjust the inclination of gyro wheel sword to rotate motor and gyro wheel sword with the cutting frame and rotate the motor and cooperate, can change the tapering of cutting the pencil according to user's demand.
4. A novel electronic adjustable penknife, be equipped with emery wheel and linear electric motor, can make gyro wheel sword rotation motor remove through linear electric motor, and then rotate motor and gyro wheel sword rotation motor with the cutting frame and cooperate, change the blunt degree of cutting pencil nib.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is a schematic structural diagram of an angle of the feeding mechanism of the present invention.
Fig. 4 is a schematic structural view of another angle of the feeding mechanism of the present invention.
Fig. 5 is a schematic structural view of the first roller cutter shaft and the second roller cutter shaft of the present invention.
Wherein: 100. a top shell; 110. inserting holes of pencils; 120. a feeding device; 121. a feed chamber; 122. a feed motor; 123. a feed wheel; 124. a first drive gear; 125. a second transmission gear; 126. a third transmission gear;
200. a cutting mechanism; 210. a housing; 220. a cutting frame; 221. an upper cutting frame; 222. a support frame; 223. a lower cutting frame; 230. a roller cutter; 231. a first roller cutter shaft; 232. a second roller cutter shaft; 240. an angle adjusting device; 241. a lead screw; 242. adjusting the motor; 243. a first slider; 250. a grinding wheel;
300. a base; 310. a cutting frame rotating mechanism; 311. a cutting frame rotating motor; 312. a transmission member; 313. a fourth transmission gear; 314. a ring gear; 320. a roller cutter rotating mechanism; 321. a roller cutter rotating motor; 322. a universal coupling; 330. a linear motor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 5, a novel electric adjustable pencil sharpener comprises a top shell 100, a cutting mechanism 200 and a base 300 arranged from top to bottom.
Referring to fig. 1, a vertically through pencil insertion hole 110 is formed in the top case 100, a pencil is inserted into the pencil insertion hole 110, a rubber sleeve is arranged in the pencil insertion hole 110, and micro protrusions are uniformly distributed on the rubber sleeve and can clamp the pencil.
Referring to fig. 1, 2 and 5, the cutting mechanism 200 is disposed under the top case 100, and includes a housing 210, a cutting frame 220, and a trolley blade 230, the top case 100 being placed on the top of the housing 210, the cutting frame 220 being disposed inside the housing 210. The cutting frame 220 comprises an upper cutting frame 220, a support frame 222 and a lower cutting frame 220 which are sequentially connected from top to bottom, a roller cutter 230 is arranged between the upper cutting frame 220 and the lower cutting frame 220, a spiral blade is arranged on the roller cutter 230, a first hole which is communicated up and down is arranged in the middle of the roller cutter 230, a first roller cutter shaft 231 is arranged in the first hole, a second hole which is communicated up and down is arranged on the first roller cutter shaft 231, a second roller cutter shaft 232 is arranged in the second hole, the first roller cutter shaft 231 penetrates out from the bottom of the roller cutter 230, the second roller cutter shaft 232 penetrates out from the top of the roller cutter 230, an angle adjusting hole and an angle adjusting device 240 for changing the inclination angle of the roller cutter 230 are arranged on the upper cutting frame 220, the angle adjusting device 240 comprises a lead screw 241 and an adjusting motor 242 for driving the lead screw 241 to rotate, the adjusting motor 242 is arranged on the top of the upper cutting frame 220, one, the other end is mounted on the top of the upper cutting frame 220 through a bearing seat, a first sliding block 243 capable of sliding on the lead screw 241 is arranged on the lead screw 241, and the top of the second roller cutter shaft 232 penetrates through the angle adjusting hole and is connected with the bottom of the first sliding block 243 through a spherical hinge. In the using process, the first roller knife shaft 231 rotates to drive the second roller knife shaft 232 and the roller knife 230 to rotate. The adjustment motor 242 can drive the first slider 243 to move on the lead screw 241, and further adjust the inclination angle of the second roller knife shaft 232, thereby adjusting the inclination angles of the first roller knife shaft 231 and the roller knife 230, and changing the taper of the pencil according to the requirement of the user when the roller knife 230 cuts the pencil.
Referring to fig. 1, the base 300 has a cavity structure with an opening at the top, the bottom of the outer cover 210 is detachably disposed at the top of the base 300, and the base 300 is provided with a cutting frame rotating mechanism 310 for driving the cutting frame 220 to rotate and a roller blade rotating mechanism 320 for driving the first roller blade shaft 231 to rotate.
Specifically, the cutting frame rotating mechanism 310 includes a cutting frame rotating motor 311 and a transmission member 312, the cutting frame rotating motor 311 is installed at the bottom of the base 300, an output shaft of the cutting frame rotating motor 311 is vertically arranged, a fourth transmission gear 313 is installed on the output shaft of the cutting frame rotating motor 311, the top of the transmission member 312 is fixed with the lower cutting frame 220, and a gear ring 314 engaged with the fourth transmission gear 313 is arranged at the bottom. In the use process, the cutting frame rotating motor 311 drives the fourth transmission gear 313 to rotate, and because the fourth transmission gear 313 is internally meshed with the gear ring 314, the top of the transmission piece 312 is fixed with the lower cutting frame 220, so that the transmission piece 312 and the cutting frame 220 rotate, and the roller cutter 230 is driven to rotate.
Preferably, the bottom of the housing 210 is snap-fitted on top of the base 300.
Referring to fig. 2, the roller cutter rotating mechanism 320 includes a roller cutter rotating motor 321, the roller cutter rotating motor 321 is installed in the middle of the transmission member 312, an output shaft of the roller cutter rotating motor 321 vertically penetrates through the lower cutting frame 220, a universal coupling 322 is disposed between the output shaft of the roller cutter rotating motor 321 and the first roller cutter shaft 231, and the roller cutter rotating motor 321 is driven to rotate the first roller cutter shaft 231 and further drive the second roller cutter shaft 232 and the roller cutter 230 to rotate by the arrangement of the universal coupling 322.
The roller blade 230 of the device is driven by the cutting frame rotating motor 311 and the roller blade rotating motor 321 to rotate, so that the spiral blade on the roller blade can freely cut a pencil.
Referring to fig. 3 and 4, a feeding device 120 for pushing a pencil to lift is further disposed in the top case 100, the feeding device 120 includes a feeding cavity 121 and a feeding motor 122, the feeding cavity 121 is fixed on the top case 100, the pencil insertion hole 110 is disposed in the feeding cavity 121, two rows of vertically distributed feeding wheels 123 are disposed in the feeding cavity 121, the feeding motor 122 is mounted on the feeding cavity 121, an output shaft of the feeding motor 122 is connected with a rotating shaft of one feeding wheel 123 to drive the feeding wheel 123 to rotate, a first transmission gear 124 is mounted on an output shaft of the feeding motor 122, rotating shafts of other feeding wheels 123 extend out of the feeding cavity 121 and are provided with second transmission gears 125, so that the plurality of second transmission gears 125 form two rows of vertical distribution, and the first transmission gear 124 drives the plurality of second transmission gears 125 to rotate through a third transmission gear 126. By arranging the feeding device 120, the pencil can be automatically lifted according to the requirement. Preferably, a layer of rubber sleeve is arranged on the feeding wheel 123, and micro bulges which are uniformly distributed are arranged on the rubber sleeve, so that the pencil can be clamped.
The embodiment of the utility model provides an in, be equipped with two feed wheels 123 in every row of feed wheel 123 respectively, feed motor 122 installs on feeding chamber 121 and the pivot of output shaft and a feed wheel 123 is connected and is moved this feed wheel 123 and rotate, install first drive gear 124 on feed motor 122's the output shaft, the pivot of other feed wheels 123 stretches out feeding chamber 121 and installs second drive gear 125, be equipped with three second drive gear 125 altogether, set up third drive gear 126 between two rows of vertical distribution's second drive gear 125, third drive gear 126 all meshes with three second drive gear 125. The feeding motor 122 moves to drive the first transmission gear 124 and the feeding wheel 123 to rotate, the first transmission gear 124 is meshed with the third transmission gear 126, the third transmission gear 126 is meshed with the plurality of second transmission gears 125 to drive the plurality of second transmission gears 125 to rotate, so that other feeding wheels 123 are driven to rotate, and the pencil is lifted or lowered. The device is provided with four feeding wheels 123, so that the pen body can be kept vertical and stable.
The first transmission gear 124 and the plurality of second transmission gears 125 have the same specification, so that the rotation speeds of the plurality of feed wheels 123 are consistent, and the pen body can be further kept vertical and stable.
Referring to fig. 2, a grinding wheel 250 mounted on the first roller shaft is disposed below the roller cutter, the lower cutting frame 220 is provided with a moving groove, an output shaft of the roller cutter rotating motor 321 is movable in the moving groove, a linear motor 330 is disposed in the middle of the transmission member 312, a second slider is disposed on the output shaft of the linear motor 330, and the roller cutter rotating motor 321 is mounted on the second slider. The linear motor 330 can drive the second slider to move, so that the roller cutter rotating motor 321 moves, and the bluntness of the pencil point can be changed.
Novel electrically adjustable penknife still includes display screen and control panel, and the display screen passes through the support mounting on base 300, and the control panel is the singlechip, and the control panel is established in base 300, and control panel and display screen, feed motor 122, adjustment motor 242, cutting frame 220 rotate motor, gyro wheel sword rotation motor 321 and linear electric motor 330 electricity are connected. The display screen, the feeding motor 122, the adjusting motor 242, the cutting frame rotating motor 311, the roller blade rotating motor 321 and the linear motor 330 can be controlled to be turned on and off through the control panel, a main switch is arranged on the support, and the main switch is electrically connected with the control panel.
The display screen is a touch screen, and can be a full liquid crystal touch display screen, the feeding motor 122, the adjusting motor 242, the cutting frame rotating motor 311, the roller cutter rotating motor 321 and the linear motor 330 can be turned on and off through the display screen, the rotating speeds of the feeding motor 122, the adjusting motor 242, the cutting frame rotating motor 311, the roller cutter rotating motor 321 and the linear motor 330 are input and displayed, and the inclination angle of the roller cutter 230 can be adjusted through adjusting the rotating speeds of the adjusting motor 242 and the linear motor 330, so that the taper of the cutting pencil is changed.
The cover 210 is made of transparent hard material, such as acrylic plate, when cutting a pencil, the cutting chips in the cutting frame 220 can be monitored in real time, when the cutting chips reach a certain amount, the device can be closed, the top shell 100 and the cover 210 are opened in sequence, and the cutting chips are poured out.
The utility model discloses a use method:
step one, inserting a pencil into the top shell 100 from the pencil insertion hole 110, starting the feeding motor 122, and feeding the pencil into the cutting mechanism 200 through the feeding device 120;
step two, when the pencil is lowered to a proper height, the feeding motor 122 is closed, the adjusting motor 242 is started, the first sliding block 243 is moved, the inclination angle of the second roller cutter shaft 232 is changed, the inclination angle of the roller cutter 230 is further changed, and the taper of the pencil is changed according to the requirements of a user;
step three, the adjusting motor 242 is turned off, the cutting frame rotating motor 311 and the roller blade rotating motor 321 are started, the cutting frame rotating motor 311 moves to drive the transmission piece 312 to rotate, the cutting frame 220 and the roller blade 230 are further driven to rotate, and the roller blade rotating motor 321 drives the roller blade 230 to rotate;
and step four, turning off the adjusting motor 242, the cutting frame rotating motor 311 and the roller cutter rotating motor 321, starting the linear motor 330, driving the roller cutter rotating motor 321 to move through the linear motor 330, changing the inclination angle of the grinding wheel 250, starting the cutting frame rotating motor 311 and the roller cutter rotating motor 321 again, driving the transmission piece 312 to rotate through the movement of the cutting frame rotating motor 311, further driving the cutting frame 220 and the grinding wheel 250 to rotate, and driving the grinding wheel 250 to rotate through the roller cutter rotating motor 321, thereby grinding the bluntness of the pencil point.
It is to be understood that the above-described embodiments are only some, and not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel electronic adjustable penknife which characterized in that includes:
the top shell is provided with a pencil jack which is communicated up and down;
the cutting mechanism is arranged below the top shell and comprises an outer cover, a cutting frame and a roller cutter, the top shell is placed at the top of the outer cover, the cutting frame comprises an upper cutting frame, a supporting frame and a lower cutting frame which are sequentially connected from top to bottom, the roller cutter is arranged between the upper cutting frame and the lower cutting frame, a first hole which is communicated up and down is arranged in the roller cutter, a first roller cutter shaft is arranged in the first hole, a second hole which is communicated up and down is arranged on the first roller cutter shaft, a second roller cutter shaft is arranged in the second hole, an angle adjusting hole and an angle adjusting device for changing the inclination angle of the roller cutter are arranged on the upper cutting frame, the angle adjusting device comprises a screw rod and an adjusting motor for driving the screw rod to rotate, the screw rod is provided with a first slide block, the top of the second roller cutter shaft penetrates through the angle adjusting hole and is connected with the bottom of the first sliding block through a ball;
the base is of a cavity structure with an opening at the upper end, the cutting frame is erected on the base, and a roller cutter rotating mechanism for driving the cutting frame to rotate and a roller cutter rotating mechanism for driving the first roller cutter shaft to rotate are arranged in the base.
2. The novel electrically powered adjustable sharpener of claim 1, wherein: still be equipped with the feeding device who promotes the pencil and go up and down in the top shell, feeding device is including feeding the chamber and feeding motor, it fixes to feed the chamber on the top shell, the pencil jack is established on feeding the chamber, it is equipped with two rows of vertical distribution and the gyro wheel of interval certain distance to feed the intracavity, feeding motor installs on feeding the chamber and output shaft and one this gyro wheel of pivot connecting band drive of gyro wheel rotates, install first drive gear on feeding motor's the output shaft, other stretch out the pivot of gyro wheel feed the chamber and install second drive gear, first drive gear drives a plurality ofly through third drive gear second drive gear rotates.
3. The novel electrically powered adjustable sharpener of claim 2, wherein: the cutting frame rotating mechanism comprises a cutting frame rotating motor and a transmission piece, the cutting frame rotating motor is installed at the bottom of the base, a fourth transmission gear is vertically arranged on an output shaft of the cutting frame rotating motor, the top of the transmission piece is fixed with the lower cutting frame, and a gear ring meshed with the fourth transmission gear is arranged at the bottom of the transmission piece.
4. The novel electrically powered adjustable sharpener of claim 3, wherein: the roller cutter rotating mechanism comprises a roller cutter rotating motor, the roller cutter rotating motor is installed in the middle of the transmission part, and an output shaft of the roller cutter rotating motor vertically penetrates out of the lower cutting frame and is connected with the first roller cutter shaft through a universal coupling.
5. The novel electrically powered adjustable sharpener of claim 4, wherein: the grinding wheel mounted on the first roller cutter shaft is arranged below the roller cutter, the lower cutting frame is provided with a moving groove, an output shaft of the roller cutter rotating motor can move in the moving groove, a linear motor is arranged in the middle of the transmission part, a second sliding block is arranged on the output shaft of the linear motor, and the roller cutter rotating motor is mounted on the second sliding block.
6. The novel electrically powered adjustable sharpener of claim 5, wherein: the novel electric adjustable pencil sharpener further comprises a display screen and a control panel, the display screen is installed on the base through a support, and the control panel is electrically connected with the display screen, the feeding motor, the adjusting motor, the cutting frame rotating motor, the roller sharpener rotating motor and the linear motor.
7. The novel electrically powered adjustable sharpener of claim 6, wherein: the control panel is a singlechip.
8. The novel electrically powered adjustable sharpener of claim 7, wherein: the display screen is a full liquid crystal touch display screen.
9. The new power adjustable sharpener of any one of claims 1-7 where: the outer cover is made of transparent hard material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476897.6U CN211441756U (en) | 2019-12-31 | 2019-12-31 | Novel electric adjustable pencil sharpener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922476897.6U CN211441756U (en) | 2019-12-31 | 2019-12-31 | Novel electric adjustable pencil sharpener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211441756U true CN211441756U (en) | 2020-09-08 |
Family
ID=72314920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922476897.6U Expired - Fee Related CN211441756U (en) | 2019-12-31 | 2019-12-31 | Novel electric adjustable pencil sharpener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211441756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976896A (en) * | 2021-03-24 | 2021-06-18 | 万智昌 | Drawing is with log pencil sharpening receiver |
-
2019
- 2019-12-31 CN CN201922476897.6U patent/CN211441756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976896A (en) * | 2021-03-24 | 2021-06-18 | 万智昌 | Drawing is with log pencil sharpening receiver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 |