CN109159583B - Blackboard is used in environmental protection teaching with grey effect of collection - Google Patents
Blackboard is used in environmental protection teaching with grey effect of collection Download PDFInfo
- Publication number
- CN109159583B CN109159583B CN201811311511.XA CN201811311511A CN109159583B CN 109159583 B CN109159583 B CN 109159583B CN 201811311511 A CN201811311511 A CN 201811311511A CN 109159583 B CN109159583 B CN 109159583B
- Authority
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- China
- Prior art keywords
- blackboard
- basket
- wall
- main body
- bottom box
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- 230000000694 effects Effects 0.000 title claims abstract description 30
- 230000007613 environmental effect Effects 0.000 title claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 77
- 210000002268 wool Anatomy 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims 2
- 238000003860 storage Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
-
- 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
- B43L21/04—Wiper holders
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses an environment-friendly blackboard with a dust collecting effect for teaching, which relates to the field of blackboard devices for teaching and comprises a blackboard frame main body and a bottom box, wherein the bottom box is fixedly arranged at the bottom of the blackboard frame main body, a panel is arranged on one side of the front surface of the blackboard frame main body, grooves are respectively arranged on two sides of the panel, one side of each groove extends into an inner cavity of two side walls of the blackboard frame main body, an eraser main body is movably arranged between the grooves on the two sides, the eraser main body is connected with the panel in an attaching manner, a dust collecting groove is arranged in the inner cavity of the bottom box, a chalk dust shrinkage basket is movably arranged in the dust collecting groove, one end of the chalk dust shrinkage basket penetrates through one side wall of the bottom box and extends to one side of the outer wall of the bottom box, and. The blackboard has the advantages of simple structure and convenient operation, and compared with the existing traditional blackboard, the blackboard has high intelligent degree and can realize automation, and the generated chalk dust can be collected to achieve the effect of environmental protection.
Description
Technical Field
The invention relates to the field of blackboard devices for teaching, in particular to an environment-friendly blackboard for teaching, which has a dust collection effect.
Background
At present, a computer teaching technology is generally adopted for teaching writing tools, but a plurality of teaching habits still exist, namely, the traditional writing habits and the way of teaching while writing on a board are used.
However, the conventional blackboard is erased manually by using the blackboard eraser, but the erasing manner is simple, a large amount of chalk dust is easily generated, the chalk dust is randomly generated and falls off, the environmental pollution is easily caused, and in addition, the body harm to students or learners is easily caused. Therefore, it is necessary to provide an environmentally friendly blackboard for teaching, which has a dust collecting effect, to solve the above problems.
Disclosure of Invention
The invention aims to provide an environment-friendly teaching blackboard with a dust collecting effect, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly blackboard with a dust collecting effect for teaching comprises a blackboard frame main body and a bottom box, wherein the bottom box is fixedly arranged at the bottom of the blackboard frame main body, a panel is arranged on one side of the front surface of the blackboard frame main body, grooves are respectively arranged on two sides of the panel, one side of each groove extends into the inner cavity of the two side walls of the blackboard frame main body, a blackboard eraser main body is movably arranged between the grooves and is connected with the panel in a fitting manner, a dust collecting groove is arranged in the inner cavity of the bottom box, a chalk dust shrinkage basket is movably arranged in the dust collecting groove, one end of the chalk dust shrinkage basket penetrates through one side wall of the bottom box and extends to one side of the outer wall of the bottom box, a drawing plate is arranged on one side of the outer wall of the bottom box and is fixedly connected with one end of the chalk dust shrinkage basket, a wire hole is arranged on one side of the outer wall of the drawing plate, the chalk dust collecting device is characterized in that a winding turntable is arranged on one side of the wire hole and is rotatably connected with the drawing plate, a pull rope is fixedly arranged on the winding turntable, the other end of the pull rope penetrates through the wire hole and extends into the inner cavity of the chalk dust collecting basket to be fixedly connected with the inner end wall of the chalk dust collecting basket.
Preferably, the top end of the ash collecting groove is provided with a leading-in groove, the bottom end of the leading-in groove penetrates through the top wall of the bottom box and extends into the panel, an inclined plate is arranged on one side of the top end of the leading-in groove, the inclined plate is arranged on the top of the bottom box and is located on one side of the bottom end of the panel, and the inclined plate and the top of the bottom box form an inclined angle of 15-30 degrees.
Preferably, the fixed guide rail that is provided with on the recess inner wall, the activity joint has step motor in the recess, and step motor one end and guide rail meshing are connected, step motor outer wall one side is fixed to be provided with and rotates the motor, it runs through recess and blackboard eraser main part tip fixed connection to rotate the motor output.
Preferably, the blackboard frame main part openly goes up to fix and is provided with the outer connecting block, the spout has been seted up in the outer connecting block top runs through, and in the spout bottom extended to the outer connecting block, the spout internalization joint has the slider, and the positive one side of slider extended to the positive one side of outer connecting block, the positive one side of outer connecting block is provided with chalk section of thick bamboo, and chalk section of thick bamboo and slider fixed connection.
Preferably, the two ends of the dust collecting groove are fixedly provided with a support, the top of the support is fixedly provided with a vibration motor, the output end of the vibration motor is arranged under the leading-in groove, and the output end of the vibration motor is movably attached and connected with the bottom of the blackboard eraser main body.
Preferably, the blackboard eraser main body comprises a connecting plate and an electrostatic plate, the electrostatic plate is fixedly arranged on one side of the connecting plate, bristles are fixedly arranged on one side of the outer wall of the electrostatic plate and movably attached to the surface of the panel, and the bristles are made of wool or yak wool.
Preferably, chalk dust shrink basket includes collects basket and shrink spring, collect basket top and set up to the open-type, and collect the basket and make by the cloth, shrink spring ring is around setting up on collecting the basket inner wall, and stay cord one end and shrink spring tip fixed connection.
Preferably, a controller is fixedly arranged on the other side wall of the front face of the blackboard frame main body, a storage battery is movably embedded in one side of the controller, and the stepping motor, the rotating motor, the vibrating motor and the electrostatic plate are electrically connected with the storage battery through the controller.
Preferably, the upper end and the lower end of the back face of the blackboard frame main body are fixedly provided with hooks, the hooks are arranged in an L shape, the top end of one side of the outer wall of the drawing plate is fixedly provided with a handle, and the handle is arranged at the top end of the take-up turntable.
The invention has the technical effects and advantages that:
1. the movable blackboard eraser main body is beneficial to realizing the rapid and automatic cleaning of the panel, and the electrostatic plate with static electricity can adsorb the chalk dust generated in the cleaning process, thereby avoiding the environmental pollution caused by the random falling of the chalk dust;
2. the chalk dust shrinkage basket is arranged in the bottom box, so that the chalk dust shrinkage basket can be flexibly stretched and retracted through the shrinkage and relaxation of the shrinkage spring, the chalk dust shrinkage basket can be conveniently pulled out of the dust collection groove, a large amount of space is occupied when chalk dust in the chalk dust shrinkage basket is cleaned due to the fact that the chalk dust shrinkage basket is too long, and cleaning is convenient;
3. the blackboard has the advantages of simple structure and convenient operation, and compared with the existing traditional blackboard, the blackboard has high intelligent degree and can realize automation, and the generated chalk dust can be collected to achieve the effect of environmental protection.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic cross-sectional view of a portion of the bottom case of the present invention.
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention.
FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
FIG. 5 is an enlarged view of the structure of FIG. 1 at C according to the present invention.
In the figure: 1. a blackboard frame body; 2. a bottom box; 3. a panel; 4. a groove; 5. a board eraser main body; 51. a connecting plate; 52. an electrostatic plate; 53. brushing; 6. a dust collecting groove; 7. a chalk dust shrinkage basket; 71. a collection basket; 72. a retraction spring; 8. drawing the plate; 9. a wire hole; 10. a take-up turntable; 11. pulling a rope; 12. a lead-in groove; 13. a sloping plate; 14. a guide rail; 15. a stepping motor; 16. rotating the motor; 17. an outer connecting block; 18. a chute; 19. a slider; 20. a chalk barrel; 21. a support; 22. vibrating a motor; 23. a controller; 24. a storage battery; 25. hooking; 26. and (4) a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an environment-friendly blackboard with a dust collecting effect for teaching as shown in figures 1-5, which comprises a blackboard frame main body 1 and a bottom box 2, wherein the bottom box 2 is fixedly arranged at the bottom of the blackboard frame main body 1, a panel 3 is arranged at one side of the front surface of the blackboard frame main body 1, grooves 4 are respectively arranged at two sides of the panel 3, one side of each groove 4 extends into the inner cavity of the two side walls of the blackboard frame main body 1, an eraser main body 5 is movably arranged between the grooves 4 at two sides, the eraser main body 5 is connected with the panel 3 in a fit manner, a dust collecting groove 6 is arranged in the inner cavity of the bottom box 2, a chalk dust collecting basket 7 is movably arranged in the dust collecting groove 6, one end of the chalk dust collecting basket 7 penetrates through one side wall of the bottom box 2 and extends to one side of the outer wall of the bottom box 2, a drawing plate 8 is arranged at one side of the outer wall of the bottom box 2, take out 8 outer wall one sides of board and be provided with line hole 9, line hole 9 runs through and takes out board 8, and extends to in chalk dust shrink basket 7, line hole 9 one side is provided with receives line carousel 10, and receives line carousel 10 and take out board 8 and be rotation connection, receive fixed stay cord 11 that is provided with on the line carousel 10, the stay cord 11 other end runs through line hole 9, and extends to in the chalk dust shrink basket 7 inner chamber with chalk dust shrink basket 7 inner end wall fixed connection.
Further, in the above scheme, the top end of the dust collection groove 6 is provided with the introduction groove 12, the bottom end of the introduction groove 12 penetrates through the top wall of the bottom box 2 and extends into the panel 3, one side of the top end of the introduction groove 12 is provided with the inclined plate 13, the inclined plate 13 is arranged at the top of the bottom box 2 and is located at one side of the bottom end of the panel 3, the inclined plate 13 and the top of the bottom box 2 are arranged at an inclined angle of 15-30 degrees, so that the chalk dust on the bristles 53 is prevented from falling to the outside when the blackboard eraser main body 5 moves up and down, and the chalk dust collection efficiency is improved.
Further, in the above scheme, a guide rail 14 is fixedly arranged on the inner wall of the groove 4, a stepping motor 15 is movably clamped in the groove 4, one end of the stepping motor 15 is meshed with the guide rail 14, a rotating motor 16 is fixedly arranged on one side of the outer wall of the stepping motor 15, the output end of the rotating motor 16 penetrates through the groove 4 and is fixedly connected with the end portion of the eraser main body 5, the arrangement of the stepping motor 15 is favorable for driving the eraser main body 5 to move up and down under the operation of the stepping motor 15, the effect of wiping the panel 3 is achieved, and the eraser main body 5 is driven to rotate by 90 degrees through the operation of the rotating motor 16.
Further, in the above scheme, the blackboard frame main body 1 one side openly fixedly is provided with outer connecting block 17, outer connecting block 17 top has run through and has seted up spout 18, and in spout 18 bottom extended to outer connecting block 17, movable joint has slider 19 in the spout 18, and the slider 19 openly one side extends to outer connecting block 17 openly one side, outer connecting block 17 openly one side is provided with chalk container 20, and chalk container 20 and slider 19 fixed connection, through the setting of chalk container 20, is favorable to carrying out concentrated depositing to the chalk to through the movable joint of chalk container 20 with outer connecting block 17, can conveniently carry out dust disposal to chalk container 20.
Further, in the above scheme, fixed supports 21 that are provided with in ash collecting groove 6 both ends, the fixed shock dynamo 22 that is provided with in support 21 top, shock dynamo 22 output sets up under leading-in groove 12, and shock dynamo 22 output is the activity laminating with the blackboard eraser main part 5 bottom and is connected, is favorable to producing certain vibrations to blackboard eraser main part 5 under shock dynamo 22's operation for the absorbent chalk dust shake drops on blackboard eraser main part 5.
Further, in the above scheme, the eraser body 5 includes a connecting plate 51 and an electrostatic plate 52, the electrostatic plate 52 is fixedly disposed on one side of the connecting plate 51, bristles 53 are fixedly disposed on one side of an outer wall of the electrostatic plate 52, the bristles 53 are movably attached to the surface of the panel 3, the bristles 53 are made of wool or yak wool, chalk characters on the panel 3 are erased through the bristles 53, an adsorption effect on chalk dust is achieved by static electricity on the electrostatic plate 52 in an erasing process, and random floating of the chalk dust is reduced.
Further, in the above scheme, the chalk dust contracting basket 7 comprises a collecting basket 71 and a contracting spring 72, the top of the collecting basket 71 is open, the collecting basket 71 is made of cloth, the contracting spring 72 is arranged on the inner wall of the collecting basket 71 in a surrounding manner, one end of the pull rope 11 is fixedly connected with the end of the contracting spring 72, and the contracting spring 72 is arranged in the collecting basket 71 in a surrounding manner, so that the effect of compressing and relaxing the collecting basket 71 by utilizing the elastic potential energy of the contracting spring 72 is facilitated.
Further, in the above scheme, a controller 23 is fixedly arranged on the other side wall of the front surface of the blackboard frame main body 1, a storage battery 24 is movably embedded in one side of the controller 23, and the stepping motor 15, the rotating motor 16, the vibrating motor 22 and the electrostatic plate 52 are electrically connected with the storage battery 24 through the controller 23, so that the automatic control is facilitated, the manual operation process is reduced, and the labor force is liberated.
Further, in the above scheme, the hooks 25 are fixedly arranged at the upper end and the lower end of the back of the blackboard frame main body 1, the hooks 25 are arranged in an L shape, so that the blackboard frame main body 1 can be fixed on a wall, a wood board or a desk through the hooks 25, the top end of one side of the outer wall of the drawing plate 8 is fixedly provided with the handle 26, and the handle 26 is arranged at the top end of the take-up turntable 10.
This practical theory of operation:
when the blackboard eraser works, the controller 23 is used for starting all parts in the device to start running, firstly, the power supply between the electrostatic plate 52 and the storage battery 24 is switched on, so that the electrostatic plate 52 generates static electricity, the stepping motor 15 is controlled to reciprocate up and down on the guide rail 14, chalk characters on the panel 3 are wiped by using the bristles 53 on the eraser main body 5, meanwhile, the static electricity generated by the electrostatic plate 52 is used for adsorbing the chalk dust generated by wiping, and the chalk dust is prevented from falling randomly;
after the panel 3 is wiped cleanly, the stepping motor 15 moves to the bottom end of the groove 4, then the rotating motor 16 operates to drive the eraser main body 5 to rotate 90 degrees, so that the bristles 53 face the introduction groove 12, then the controller 23 disconnects the electric connection between the storage battery 24 and the electrostatic plate 52 to lose static electricity, and then the vibration generated by the operation of the vibrating motor 22 and the eraser main body 5 causes the chalk dust attached to the eraser main body 5 to vibrate into the chalk dust shrinkage basket 7 in the chalk dust collection groove 6 for collection;
after the chalk dust on the eraser main body 5 shakes cleanly, the manual rotation is received line carousel 10 and is reached the effect of rolling stay cord 11, and can compress chalk dust shrink basket 7 when stay cord 11 contracts, then draw out board 8 through the pull and pull out chalk dust shrink basket 7, and clear up the chalk dust of collecting in the chalk dust shrink basket 7, after the chalk dust is cleared up, insert chalk dust shrink basket 7 to the collection ash chute 6 again, and loosen and receive line carousel 10 and make chalk dust shrink basket 7 utilize the elastic potential energy of shrink spring 72 self to relax the effect of chalk dust shrink basket 7 again, with this effect that reaches the recollecting chalk dust.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides an environmental protection is blackboard for teaching with grey effect of collection, includes blackboard frame main part (1) and under casing (2), its characterized in that: the blackboard eraser is characterized in that the bottom box (2) is fixedly arranged at the bottom of the blackboard frame main body (1), a panel (3) is arranged on one side of the front surface of the blackboard frame main body (1), grooves (4) are formed in two sides of the panel (3), one side of each groove (4) extends into an inner cavity of two side walls of the blackboard frame main body (1), a blackboard eraser main body (5) is movably arranged between the grooves (4), the blackboard eraser main body (5) is connected with the panel (3) in an attaching mode, an ash collecting groove (6) is formed in the inner cavity of the bottom box (2), a chalk ash shrinkage basket (7) is movably arranged in the ash collecting groove (6), the chalk ash shrinkage basket (7) comprises a collection basket (71) and a shrinkage spring (72), the top of the collection basket (71) is arranged in an open mode, the collection basket (71) is made of cloth, and the shrinkage spring (72) is arranged on the inner wall of the collection basket, one end of the pull rope (11) is fixedly connected with the end part of the contraction spring (72), one end of the chalk dust contraction basket (7) penetrates through one side wall of the bottom box (2), and extends to one side of the outer wall of the bottom box (2), one side of the outer wall of the bottom box (2) is provided with a drawing plate (8), and the drawing plate (8) is fixedly connected with one end of the chalk dust shrinkage basket (7), one side of the outer wall of the drawing plate (8) is provided with a line hole (9), the line hole (9) penetrates through the drawing plate (8), and extends into the chalk dust shrinkage basket (7), a wire take-up turntable (10) is arranged at one side of the wire hole (9), the take-up turntable (10) is rotationally connected with the pulling plate (8), a pull rope (11) is fixedly arranged on the take-up turntable (10), the other end of the pull rope (11) penetrates through the wire hole (9), and extends into the inner cavity of the chalk dust shrinkage basket (7) to be fixedly connected with the inner end wall of the chalk dust shrinkage basket (7).
2. The blackboard with dust collecting effect for environmental protection teaching as claimed in claim 1, wherein: the top end of the ash collecting groove (6) is provided with a leading-in groove (12), the bottom end of the leading-in groove (12) penetrates through the top wall of the bottom box (2) and extends into the panel (3), an inclined plate (13) is arranged on one side of the top end of the leading-in groove (12), the inclined plate (13) is arranged on the top of the bottom box (2) and is located on one side of the bottom end of the panel (3), and the inclined plate (13) and the top of the bottom box (2) are arranged at an inclined angle of 15-30 degrees.
3. The blackboard with dust collecting effect for environmental protection teaching as claimed in claim 2, characterized in that: fixed guide rail (14) that is provided with on recess (4) inner wall, the activity joint has step motor (15) in recess (4), and step motor (15) one end is connected with guide rail (14) meshing, step motor (15) outer wall one side is fixed and is provided with rotation motor (16), it runs through recess (4) and blackboard eraser main part (5) tip fixed connection to rotate motor (16) output.
4. The blackboard with dust collecting effect for environmental protection teaching as claimed in claim 1, wherein: blackboard frame main part (1) one side openly goes up fixedly and is provided with outer connecting block (17), outer connecting block (17) top is run through and has been seted up spout (18), and in spout (18) bottom extended to outer connecting block (17), the activity joint has slider (19) in spout (18), and slider (19) openly one side extend to outer connecting block (17) openly one side, outer connecting block (17) openly one side is provided with chalk container (20), and chalk container (20) and slider (19) fixed connection.
5. The blackboard with dust collecting effect for environmental protection teaching of claim 3, wherein: the blackboard eraser is characterized in that supports (21) are fixedly arranged at two ends of the ash collecting groove (6), a vibration motor (22) is fixedly arranged at the top of each support (21), the output end of each vibration motor (22) is arranged under the corresponding guide-in groove (12), and the output end of each vibration motor (22) is movably attached to the bottom of the corresponding blackboard eraser main body (5).
6. The blackboard with dust collecting effect for environmental protection teaching of claim 5, wherein: the blackboard eraser body (5) comprises a connecting plate (51) and an electrostatic plate (52), the electrostatic plate (52) is fixedly arranged on one side of the connecting plate (51), bristles (53) are fixedly arranged on one side of the outer wall of the electrostatic plate (52), the bristles (53) are movably attached to the surface of the panel (3) and connected with the surface of the panel, and the bristles (53) are made of wool or yak wool.
7. The blackboard with dust collecting effect for environmental protection teaching of claim 6, wherein: the blackboard frame main part (1) is fixed on another lateral wall of front and is provided with controller (23), battery (24) have been inlayed in controller (23) one side activity, step motor (15), rotating electrical machines (16), shock dynamo (22) and electrostatic plate (52) all pass through controller (23) and battery (24) electric connection.
8. The blackboard with dust collecting effect for environmental protection teaching as claimed in claim 1, wherein: the blackboard frame main part (1) back is both ends all fixed and is provided with couple (25) from top to bottom, and couple (25) are the setting of L type, draw board (8) outer wall one side top fixed be provided with handle (26), and handle (26) set up in receipts line carousel (10) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311511.XA CN109159583B (en) | 2018-11-06 | 2018-11-06 | Blackboard is used in environmental protection teaching with grey effect of collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311511.XA CN109159583B (en) | 2018-11-06 | 2018-11-06 | Blackboard is used in environmental protection teaching with grey effect of collection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109159583A CN109159583A (en) | 2019-01-08 |
| CN109159583B true CN109159583B (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811311511.XA Active CN109159583B (en) | 2018-11-06 | 2018-11-06 | Blackboard is used in environmental protection teaching with grey effect of collection |
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| Country | Link |
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| CN (1) | CN109159583B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626096A (en) * | 2019-09-26 | 2019-12-31 | 重庆市开州区桑梦科技有限公司 | Display board for English teaching |
| CN111845169A (en) * | 2020-08-05 | 2020-10-30 | 陕西理工大学 | Auxiliary device for mathematical education |
| CN112192978A (en) * | 2020-10-28 | 2021-01-08 | 张亚斌 | Blackboard eraser capable of being overturned for quick and repeated use |
| CN113524970B (en) * | 2021-07-13 | 2022-01-04 | 泰顺县兴隆木制玩具有限公司 | Wooden drawing board of environmental protection no dust |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6172462A (en) * | 1984-09-18 | 1986-04-14 | Matsushita Electric Ind Co Ltd | Black board with copying function |
| CN2042480U (en) * | 1988-12-30 | 1989-08-09 | 白明杰 | Spring type cleaning device for removing of obstructions in waste pipes |
| CN101845843B (en) * | 2010-06-05 | 2012-05-23 | 张光裕 | Impact type drain cleaner |
| CN201922798U (en) * | 2010-12-08 | 2011-08-10 | 上海市黄浦区新凌小学 | Bag for holding chalk dust |
| CN106004184B (en) * | 2016-06-29 | 2018-06-05 | 裴萌 | A kind of environmental protection type blackboard for preventing dust pollution |
| CN206664101U (en) * | 2016-08-01 | 2017-11-24 | 黄河科技学院 | The anti-flying dust formula blackboard device of automatic erasing |
| CN206252040U (en) * | 2016-11-29 | 2017-06-16 | 燕山大学 | A kind of telescopic book searching board holder |
| CN208035751U (en) * | 2017-05-16 | 2018-11-02 | 长沙医学院 | A kind of packaged type science of economic management demonstration board |
| CN108230780A (en) * | 2018-03-05 | 2018-06-29 | 四川乐为科技有限公司 | A kind of multi-functional picture educational facilities |
| CN108301469A (en) * | 2018-03-05 | 2018-07-20 | 李婧娴 | A kind of bathroom hair in pipeline cleaner |
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2018
- 2018-11-06 CN CN201811311511.XA patent/CN109159583B/en active Active
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| CN109159583A (en) | 2019-01-08 |
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