CN110356146B - Portable self-cleaning character display system - Google Patents
Portable self-cleaning character display system Download PDFInfo
- Publication number
- CN110356146B CN110356146B CN201910678431.6A CN201910678431A CN110356146B CN 110356146 B CN110356146 B CN 110356146B CN 201910678431 A CN201910678431 A CN 201910678431A CN 110356146 B CN110356146 B CN 110356146B
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- block
- fixedly arranged
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- face
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- 238000004140 cleaning Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
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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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- 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
- B43L21/00—Blackboard or slate cleaning devices
Landscapes
- Displays For Variable Information Using Movable Means (AREA)
- Transmission Devices (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a portable self-cleaning character display system which comprises a character writing box, wherein a containing cavity with a downward opening is arranged in the character writing box, a driving mechanism is arranged on the rear end wall of the containing cavity and used for controlling a device to run, display mechanisms are arranged on the left side and the right side of the driving mechanism and comprise a hollow block and a solid block which can slide up and down, the hollow block and the solid block move together, a display board with both front and back sides capable of being written is arranged in the device and can be conveniently carried for daily writing, one side of the display board can be switched into the other side after being dirty, the dirty side can be automatically cleaned, subsequent writing is facilitated, materials are saved, the time for manually wiping the display board is saved, and the hands of a user are protected.
Description
Technical Field
The invention relates to the field of character display, in particular to a portable self-cleaning character display system.
Background
With the development of society and the improvement of enterprises, schools and the like, a plurality of conferences, lectures and the like are added, so that a plurality of white boards, blackboards and the like are derived for writing and displaying characters, the white boards and the blackboards are mostly small in writing area for carrying convenience, and are used for the characteristic that the white boards and the blackboards are small in area, a user is required to repeatedly wipe the white boards and the blackboards, the recording of a listener is not facilitated, the idea of the user is interrupted, and the hands of the user are easily stained in the wiping process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a portable self-cleaning character display system, and solves the problems that a writing board needs to be manually wiped, the use area is small and the like.
The invention is realized by the following technical scheme.
The invention discloses a portable self-cleaning character display system which comprises a character writing box, wherein a containing cavity with a downward opening is arranged in the character writing box, and a driving mechanism is arranged on the rear end wall of the containing cavity and is used for controlling a device to operate;
the display mechanism is arranged on the left side and the right side of the driving mechanism and comprises a hollow block and a solid block which can slide up and down, the hollow block and the solid block move together, a rotatable display board is arranged between the hollow block and the solid block, the lower end face of the display board is used for writing characters, the upper end face of the display board is a standby writing face, the driving mechanism can drive the display mechanism to extend downwards to the device, then drive the display board to rotate, so that the standby writing face faces downwards, and then withdraw the display mechanism;
and a cleaning mechanism for cleaning the display board is arranged between the driving mechanism and the display mechanism.
Preferably, the driving mechanism further comprises a motor fixedly connected with the rear end wall of the accommodating cavity, a motor shaft is arranged on the front end face of the motor in a rotating mode, a half gear, a first bevel gear and a first sector bevel gear are fixedly arranged on the motor shaft from back to front in sequence, a top shaft is arranged on the upper end wall of the accommodating cavity in a rotating mode, a second sector bevel gear is fixedly arranged on the top shaft, a second bevel gear is fixedly arranged at the lower end of the top shaft, and the second bevel gear is in meshing transmission with the first bevel gear.
Preferably, the display mechanism further comprises a moving slot in the left end wall of the receiving cavity, the moving slot is opened towards the right, a moving block is arranged in the moving groove in a sliding manner, a moving rod with the right end positioned in the containing cavity is fixedly arranged on the right end face of the moving block, the hollow block is fixedly arranged at the right end of the movable rod, a first rack block is fixedly arranged on the right end surface of the hollow block, a square cavity with an opening facing to the right and upwards is arranged in the hollow block, a transmission shaft with the right end positioned in the containing cavity is rotatably arranged on the upper side of the left end wall of the square cavity, a third bevel gear is fixedly arranged at the right end of the transmission shaft, a first belt pulley is fixedly arranged on the transmission shaft in the square cavity, the lower side is equipped with the opening towards the cylinder chamber of right in the square chamber left end wall, cylinder chamber upper and lower end wall symmetry is equipped with the opening towards the chamber that blocks of cylinder chamber, cylinder chamber left end wall rotates and is equipped with the right-hand member and is located accomodate the major axis of intracavity.
Preferably, the cylinder intracavity the major axis up end is equipped with opening elasticity chamber up, the fixed elastic spring that is equipped with of elasticity chamber lower extreme wall, the fixed upper end that is equipped with in elasticity spring upper end is located the upside block the elasticity piece of intracavity, square intracavity the fixed second band pulley that is equipped with on the major axis, the second band pulley with first band pulley passes through belt friction transmission, the major axis right-hand member is fixed to be equipped with the show board, it is equipped with the opening towards the motion groove of left side in the chamber right-hand member wall to accomodate, it is equipped with the motion piece to slide in the motion groove, the fixed motion pole that is equipped with of motion piece left end face, the motion pole left end with solid piece fixed connection, the fixed second rack piece that is equipped with of solid piece left end face, second rack piece left end face downside rotates and is equipped with the minor axis, the minor axis with show board fixed.
Preferably, the cleaning mechanism comprises a supporting rod fixedly connected with the rear end wall of the accommodating cavity, a supporting shaft penetrating through the supporting rod is arranged in the supporting rod in a rotating mode, a fourth bevel gear is fixedly arranged at the upper end of the supporting shaft, a round block is fixedly arranged at the lower end of the supporting shaft, a short rod is fixedly arranged on the lower end face of the round block, the rear end wall of the accommodating cavity is hinged to a groove block, a limiting groove penetrating through the front end face and the rear end face of the groove block is formed in the groove block, the rear end of the short rod is located in the limiting groove, and a cleaning sponge is fixedly arranged on the rear end.
Preferably, the half gear firstly meshes with the first rack block and then meshes with the second rack block during rotation.
Preferably, the second fan-shaped bevel gear rotates and then is in meshing transmission with the third bevel gear, and the first fan-shaped bevel gear rotates and then is in meshing transmission with the fourth bevel gear.
The invention has the beneficial effects that: the inside show board that can write of positive and negative all of being equipped with of this device can conveniently carry for daily writing, can switch into the another side after the one side of show board is dirty, and can carry out self-cleaning to dirty face, so that subsequent writing, when having practiced thrift the material, also saved the time that the manpower wiped the show board, protected user's both hands.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of the entire self-cleaning text display system of the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1;
FIG. 3 is an enlarged view of the point B in FIG. 1;
FIG. 4 is a schematic view in the direction C-C of FIG. 1;
fig. 5 is a schematic view of the direction D-D in fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The mechanical mechanism schematic diagram of the portable self-cleaning character display system described with reference to fig. 1-5 includes a character writing box 10, a containing cavity 18 with a downward opening is provided in the character writing box 10, a driving mechanism 80 is provided on the rear end wall of the containing cavity 18, and the driving mechanism 80 is used for controlling the device to operate;
the display mechanism 81 is arranged on the left side and the right side of the driving mechanism 80, the display mechanism 81 comprises a hollow block 11 and a solid block 30 which can slide up and down, the hollow block 11 and the solid block 30 move together, a display board 35 which can rotate is arranged between the hollow block 11 and the solid block 30, the lower end surface of the display board 35 is used for writing characters, the upper end surface of the display board 35 is a standby writing surface, the driving mechanism 80 can drive the display mechanism 81 to extend downwards to the device, then drive the display board 35 to rotate, so that the standby writing surface faces downwards, and then withdraw the display mechanism 81;
a cleaning mechanism 82 for cleaning the display board 35 is arranged between the driving mechanism 80 and the display mechanism 81.
Advantageously, the driving mechanism 80 further comprises a motor 55 fixedly connected with the rear end wall of the receiving cavity 18, a motor shaft 29 is rotatably arranged on the front end surface of the motor 55, a half gear 13, a first bevel gear 28 and a first bevel gear 33 are fixedly arranged on the motor shaft 29 from back to front, a top shaft 24 is rotatably arranged on the upper end wall of the receiving cavity 18, a second bevel gear 25 is fixedly arranged on the top shaft 24, a second bevel gear 23 is fixedly arranged at the lower end of the top shaft 24, and the second bevel gear 23 is in meshing transmission with the first bevel gear 28.
Beneficially, describing the display mechanism 81 in detail, the display mechanism 81 further includes a moving groove 14 located in the left end wall of the receiving cavity 18, the moving groove 14 opens to the right, a moving block 17 is slidably disposed in the moving groove 14, a moving rod 16 whose right end is located in the receiving cavity 18 is fixedly disposed on the right end face of the moving block 17, the hollow block 11 is fixedly disposed on the right end face of the moving rod 16, a first rack block 36 is fixedly disposed on the right end face of the hollow block 11, a square cavity 15 whose opening faces to the right and upward is disposed in the hollow block 11, a transmission shaft 19 whose right end is located in the receiving cavity 18 is rotatably disposed on the upper side of the left end wall of the square cavity 15, a third bevel gear 22 is fixedly disposed on the right end of the transmission shaft 19, a first belt pulley 20 is fixedly disposed on the transmission shaft 19 in the square cavity 15, and a cylindrical cavity 39 whose opening faces to the right is disposed on the lower side of, the upper end wall and the lower end wall of the cylindrical cavity 39 are symmetrically provided with blocking cavities 44 with openings facing the cylindrical cavity 39, and the left end wall of the cylindrical cavity 39 is rotatably provided with a long shaft 37 with the right end positioned in the accommodating cavity 18;
an elastic cavity 41 with an upward opening is arranged on the upper end face of the long shaft 37 in the cylindrical cavity 39, an elastic spring 40 is fixedly arranged on the lower end wall of the elastic cavity 41, an elastic block 43 with an upper end positioned on the upper side in the blocking cavity 44 is fixedly arranged on the upper end of the elastic spring 40, a second belt wheel 38 is fixedly arranged on the long shaft 37 in the square cavity 15, the second belt wheel 38 and the first belt wheel 20 are in friction transmission through a belt 12, the display plate 35 is fixedly arranged on the right end of the long shaft 37, a moving groove 32 with an opening facing left is arranged in the wall of the right end of the containing cavity 18, a moving block 27 is arranged in the moving groove 32 in a sliding manner, a moving rod 26 is fixedly arranged on the left end face of the moving block 27, the left end of the moving rod 26 is fixedly connected with the solid block 30, a second rack block 31 is fixedly arranged on the left end face of the solid block 30, a short shaft, the short shaft 34 is fixedly connected with the display board 35.
Beneficially, the cleaning mechanism 82 includes a support rod 48 fixedly connected to the rear end wall of the receiving cavity 18, a support shaft 46 penetrating through the support rod 48 is rotatably disposed in the support rod 48, a fourth bevel gear 47 is fixedly disposed at the upper end of the support shaft 46, a circular block 45 is fixedly disposed at the lower end of the support shaft 46, a short rod 50 is fixedly disposed at the lower end face of the circular block 45, a groove block 49 is hinged to the rear end wall of the receiving cavity 18, a limiting groove 51 penetrating through the front and rear end faces of the groove block 49 is disposed in the groove block 49, the rear end of the short rod 50 is located in the limiting groove 51, and a cleaning sponge 52 is fixedly disposed at the rear end face of the groove block 49.
Advantageously, the half-gear 13 rotates in mesh with the first rack 36 and then with the second rack 31.
Advantageously, the second bevel sector gear 25 rotates to be in mesh transmission with the third bevel gear 22, and the first bevel sector gear 33 rotates to be in mesh transmission with the fourth bevel gear 47.
Sequence of mechanical actions of the whole device:
(1) under normal conditions, characters can be written on the lower end surface of the display board 35.
(2) After the lower end face of the display board 35 is fully written, the motor 55 is started to drive the motor shaft 29 to rotate anticlockwise, the half gear 13, the first bevel gear 28 and the first sector bevel gear 33 rotate along with the motor shaft 29, the half gear 13 is firstly meshed with the first rack block 36 to push out the first rack block 36, the display board 35 extends out along with the first rack block 36, the second bevel gear 23 is driven to rotate through meshing transmission of the first bevel gear 28 and the second bevel gear 23, and the second sector bevel gear 25 rotates along with the second bevel gear 23.
(3) After the half gear 13 is disengaged from the first rack block 36, the second sector bevel gear 25 and the third bevel gear 22 are in meshing transmission to drive the first belt pulley 20 to rotate, the second belt pulley 38 is driven to rotate through friction transmission of the belt 12, the display board 35 rotates one hundred eighty degrees along with the second belt pulley 38, the used surface of the display board 35 rotates to the inner side, and the standby surface of the display board 35 rotates to the outer side.
(4) The half gear 13 continuously rotates to be meshed with the second rack block 31, the display board 35 is pushed upwards to reset, after the half gear 13 is disengaged from the second rack block 31, the first sector bevel gear 33 rotates to be meshed with the fourth bevel gear 47 to drive the fourth bevel gear 47 to rotate, the circular block 45 rotates along with the fourth bevel gear 47, the short rod 50 rotates along with the circular block 45 to push the groove block 49 to move left and right repeatedly, and the cleaning sponge 52 moves along with the groove block 49 to clean the display board 35.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (3)
1. A portable automatically cleaning characters display system, includes the characters writing case, its characterized in that: a containing cavity with a downward opening is arranged in the character writing box, and a driving mechanism is arranged on the rear end wall of the containing cavity and used for controlling the device to run; the display mechanism is arranged on the left side and the right side of the driving mechanism and comprises a hollow block and a solid block which can slide up and down, the hollow block and the solid block move together, a rotatable display board is arranged between the hollow block and the solid block, the lower end face of the display board is used for writing characters, the upper end face of the display board is a standby writing face, the driving mechanism can drive the display mechanism to extend downwards to the device, then drive the display board to rotate, so that the standby writing face faces downwards, and then withdraw the display mechanism; a cleaning mechanism for cleaning the display board is arranged between the driving mechanism and the display mechanism; the driving mechanism further comprises a motor fixedly connected with the rear end wall of the containing cavity, a motor shaft is arranged on the front end face of the motor in a rotating mode, a half gear, a first bevel gear and a first sector bevel gear are fixedly arranged on the motor shaft from back to front in sequence, a top shaft is arranged on the upper end wall of the containing cavity in a rotating mode, a second sector bevel gear is fixedly arranged on the top shaft, a second bevel gear is fixedly arranged at the lower end of the top shaft, and the second bevel gear is in meshing transmission with the first bevel gear; the display mechanism also comprises a moving groove positioned in the left end wall of the containing cavity, the opening of the moving groove faces to the right, a moving block is arranged in the moving groove in a sliding manner, a moving rod with the right end positioned in the containing cavity is fixedly arranged on the right end face of the moving block, the hollow block is fixedly arranged at the right end of the movable rod, a first rack block is fixedly arranged on the right end surface of the hollow block, a square cavity with an opening facing to the right and upwards is arranged in the hollow block, a transmission shaft with the right end positioned in the containing cavity is rotatably arranged on the upper side of the left end wall of the square cavity, a third bevel gear is fixedly arranged at the right end of the transmission shaft, a first belt pulley is fixedly arranged on the transmission shaft in the square cavity, a cylindrical cavity with an opening facing right is arranged on the inner lower side of the left end wall of the square cavity, blocking cavities with openings facing the cylindrical cavity are symmetrically arranged on the upper end wall and the lower end wall of the cylindrical cavity, and a long shaft with the right end positioned in the containing cavity is rotatably arranged on the left end wall of the cylindrical cavity; an elastic cavity with an upward opening is formed in the upper end face of the long shaft in the cylindrical cavity, an elastic spring is fixedly arranged on the lower end wall of the elastic cavity, an elastic block with the upper end located in the blocking cavity is fixedly arranged at the upper end of the elastic spring, a second belt wheel is fixedly arranged on the long shaft in the square cavity, the second belt wheel and the first belt wheel are in friction transmission through a belt, the display plate is fixedly arranged at the right end of the long shaft, a moving groove with an opening facing left is formed in the wall of the right end of the containing cavity, a moving block is arranged in the moving groove in a sliding mode, a moving rod is fixedly arranged on the left end face of the moving block, the left end of the moving rod is fixedly connected with the solid block, a second rack block is fixedly arranged on the left end face of the solid block, a short shaft is rotatably arranged on the lower side; the cleaning mechanism comprises a supporting rod fixedly connected with the rear end wall of the containing cavity, a supporting shaft penetrating through the supporting rod is arranged in the supporting rod in a rotating mode, a fourth bevel gear is fixedly arranged at the upper end of the supporting shaft, a round block is fixedly arranged at the lower end of the supporting shaft, a short rod is fixedly arranged on the lower end face of the round block, the rear end wall of the containing cavity is hinged and connected with a groove block, a limiting groove penetrating through the front end face and the rear end face of the groove block is formed in the groove block, the rear end of the short rod is located in the limiting groove, and cleaning sponge is fixedly arranged on the.
2. A portable self-cleaning text display system according to claim 1, wherein: when the half gear rotates, the half gear is firstly in meshing transmission with the first rack block and then in meshing transmission with the second rack block.
3. A portable self-cleaning text display system according to claim 1, wherein: the second fan-shaped bevel gear can be in meshed transmission with the third bevel gear after rotating, and the first fan-shaped bevel gear can be in meshed transmission with the fourth bevel gear after rotating.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678431.6A CN110356146B (en) | 2019-07-25 | 2019-07-25 | Portable self-cleaning character display system |
| JP2019149185A JP6814336B1 (en) | 2019-07-25 | 2019-08-15 | Self-cleaning character display system that is convenient to carry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910678431.6A CN110356146B (en) | 2019-07-25 | 2019-07-25 | Portable self-cleaning character display system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110356146A CN110356146A (en) | 2019-10-22 |
| CN110356146B true CN110356146B (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910678431.6A Active CN110356146B (en) | 2019-07-25 | 2019-07-25 | Portable self-cleaning character display system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6814336B1 (en) |
| CN (1) | CN110356146B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112767823B (en) * | 2021-02-02 | 2023-01-13 | 尚懿电力器材河北有限公司 | On-spot warning device that power maintenance construction used |
| CN113674594A (en) * | 2021-08-25 | 2021-11-19 | 安徽理工大学 | Mathematical modeling simulation demonstration equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966282A (en) * | 2006-11-24 | 2007-05-23 | 陕西科技大学 | Turn-over type blackboard |
| CN203567411U (en) * | 2013-10-31 | 2014-04-30 | 孙志豪 | Automatic turning blackboard |
| JP2014222089A (en) * | 2013-05-13 | 2014-11-27 | 日学株式会社 | Mechanism for smoothing gear engagement of information processing slide motion device |
| CN205509957U (en) * | 2016-03-16 | 2016-08-24 | 潘江如 | Small -size solar panel cleaning device |
| CN106023669A (en) * | 2016-07-25 | 2016-10-12 | 徐慧敏 | Chinese phonetic alphabet auxiliary teaching appliance |
| CN107694977A (en) * | 2017-11-22 | 2018-02-16 | 南昌安润科技有限公司 | A kind of contactor production cleaner |
| CN207611520U (en) * | 2017-08-25 | 2018-07-13 | 包博 | A kind of Portable English classroom board |
| CN109050093A (en) * | 2018-08-22 | 2018-12-21 | 楼国华 | Writing appliance and its application method |
-
2019
- 2019-07-25 CN CN201910678431.6A patent/CN110356146B/en active Active
- 2019-08-15 JP JP2019149185A patent/JP6814336B1/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966282A (en) * | 2006-11-24 | 2007-05-23 | 陕西科技大学 | Turn-over type blackboard |
| JP2014222089A (en) * | 2013-05-13 | 2014-11-27 | 日学株式会社 | Mechanism for smoothing gear engagement of information processing slide motion device |
| CN203567411U (en) * | 2013-10-31 | 2014-04-30 | 孙志豪 | Automatic turning blackboard |
| CN205509957U (en) * | 2016-03-16 | 2016-08-24 | 潘江如 | Small -size solar panel cleaning device |
| CN106023669A (en) * | 2016-07-25 | 2016-10-12 | 徐慧敏 | Chinese phonetic alphabet auxiliary teaching appliance |
| CN207611520U (en) * | 2017-08-25 | 2018-07-13 | 包博 | A kind of Portable English classroom board |
| CN107694977A (en) * | 2017-11-22 | 2018-02-16 | 南昌安润科技有限公司 | A kind of contactor production cleaner |
| CN109050093A (en) * | 2018-08-22 | 2018-12-21 | 楼国华 | Writing appliance and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110356146A (en) | 2019-10-22 |
| JP2021020440A (en) | 2021-02-18 |
| JP6814336B1 (en) | 2021-01-20 |
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| CB03 | Change of inventor or designer information |
Inventor after: Han Xue Inventor after: Zhong Miantang Inventor after: Sun Shengnan Inventor after: Fang Xingang Inventor before: Fang Xingang |
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Effective date of registration: 20201223 Address after: Shandong Labor Vocational and technical college, 800 Haitang Road, science and Technology Park, Changqing University, Jinan, Shandong 250300 Applicant after: SHANDONG LABOR VOCATIONAL AND TECHNICAL College (SHANDONG LABOR TECHNICIAN College) Address before: Room 824, building 2, Xingyu building, Qiantang, No. 599, binfan street, Xixing street, Binjiang District, Hangzhou City, Zhejiang Province Applicant before: Hangzhou Youxiang Toys Co.,Ltd. |
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