CN112192978A - Blackboard eraser capable of being overturned for quick and repeated use - Google Patents
Blackboard eraser capable of being overturned for quick and repeated use Download PDFInfo
- Publication number
- CN112192978A CN112192978A CN202011172601.2A CN202011172601A CN112192978A CN 112192978 A CN112192978 A CN 112192978A CN 202011172601 A CN202011172601 A CN 202011172601A CN 112192978 A CN112192978 A CN 112192978A
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- rod
- frame
- blackboard eraser
- fixed
- transmission
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- 238000005192 partition Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 59
- 238000004064 recycling Methods 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 17
- 238000009792 diffusion process Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a blackboard eraser capable of being overturned and rapidly recycled, which comprises an outer frame, a fixing frame, a brush rod and a storage groove, wherein a clamping groove is formed in the outer frame, a limiting plate fixed in the outer frame is arranged on the inner side of the clamping groove, a supporting plate is inserted into the inner side of the clamping groove, the fixing frame is arranged on the inner side of the supporting plate, a connecting column is installed at the top of the fixing frame, a sponge eraser is arranged in the fixing frame, the brush rod is arranged below the fixing frame, brush bristles are fixed on the top surface of the brush rod, a sliding rod is connected in the brush rod, a partition plate is fixed at the bottom of the inner side of the outer frame, the storage groove is formed in the lower portion of the partition plate, and. This blackboard eraser that can overturn quick reuse, stable in structure can guarantee long-term the use, and can overturn, guarantees quick reuse, can improve teaching efficiency, is convenient for clear up simultaneously, avoids the dust diffusion.
Description
Technical Field
The invention relates to the technical field of teaching supplies, in particular to a blackboard eraser capable of being overturned for quick and repeated use.
Background
The blackboard is an indispensable process in the national development process during education and teaching, is also a social key point of audiences of people in all the nations, and is one of the common means in modern education and teaching during blackboard writing during the education and teaching process, and the blackboard is generally used by being provided with a blackboard eraser for erasing the blackboard so as to be conveniently recycled;
however, the blackboard eraser in the background of the prior art has some disadvantages when in use, such as:
1. the existing blackboard eraser is generally simple in structure, and after the blackboard eraser is used for a period of time, a framework of the blackboard eraser is separated, so that the blackboard eraser is damaged;
2. after the common blackboard eraser is used, a large amount of dust is absorbed on the surface of the common blackboard eraser, the common blackboard eraser needs to be cleaned and recycled, the teaching time is not saved, the teaching efficiency is not ensured, and a plurality of blackboard erasers need to be placed in a classroom for standby;
3. the existing blackboard eraser is inconvenient to clean when in use, and causes a great deal of dust diffusion in the cleaning process;
therefore, we propose a blackboard eraser capable of being flipped over for quick recycling so as to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a blackboard eraser capable of being overturned for quick recycling, and aims to solve the problems that the existing blackboard eraser in the background art is simple in structure, easy to damage, inconvenient and quick for recycling, inconvenient for cleaning and using and incapable of avoiding dust diffusion when in use.
In order to achieve the purpose, the invention provides the following technical scheme: a blackboard eraser capable of being overturned for rapid recycling comprises an outer frame, a fixing frame, a brush rod and a storage groove, wherein a clamping groove is formed in the outer frame, a limiting plate fixed in the outer frame is arranged on the inner side of the clamping groove, a supporting plate is inserted into the inner side of the clamping groove, the fixing frame is arranged on the inner side of the supporting plate, a connecting column is mounted at the top of the fixing frame, a limiting groove which is also located at the top of the fixing frame is formed in the outer side of the connecting column, a limiting block is arranged on the inner side of the limiting groove, and the tail end of the limiting;
the sponge wiper is arranged inside the fixing frame, the middle part of the sponge wiper is connected with a limiting rod, and the top end of the limiting rod is connected with a fixing nut;
a brush rod is arranged below the fixing frame, bristles are fixed on the top surface of the brush rod, a sliding rod is connected inside the brush rod, a fixing plate is arranged at the top end of the brush rod, a transmission belt is arranged on the outer side below the brush rod, a transmission rod is arranged on the outer side of the transmission belt, a connection shaft is connected to the inner side of the transmission belt, a transmission wheel is arranged at the top of the connection shaft, a driving wheel is connected to the outer side of the transmission wheel, and an adjusting rod is fixed on the outer side of the driving wheel;
the frame is characterized in that a partition plate is fixed to the bottom of the inner side of the outer frame, a storage tank is arranged below the partition plate, a connecting pipe is arranged in the middle of the partition plate, a baffle is fixed inside the connecting pipe, and door strips are arranged at the end portions of the storage tank.
Preferably, a corresponding inserting and extending structure is formed between the clamping groove and the supporting plate, the supporting plate is rotatably connected with the fixing frame through the connecting column, and the fixing frame is of a hollow frame structure.
Preferably, the fixing frame is connected with the limiting blocks through corresponding clamping between the limiting grooves, the limiting grooves are symmetrically arranged on the outer side of the fixing frame, and the limiting blocks form an elastic telescopic structure on the inner side of the outer frame through springs.
Preferably, the sponge is wiped and is equidistant setting in the inboard of mount, and the sponge is wiped and is closely laminating in the inboard of mount between the monomer to the sponge is wiped and is fixed in the inside of mount through the gag lever post correspondence interlude, is one-to-one screw thread fixed connection between gag lever post and the fixation nut moreover.
Preferably, the top surface of the brush rod is uniformly distributed with bristles, the length sizes of the bristles are different, and the brush rod forms a left-right sliding structure on the inner side of the outer frame through the sliding rod.
Preferably, the brush rod is correspondingly clamped and connected with the transmission rod through the fixing plate, the transmission rod is correspondingly fixedly connected with the transmission belt, and the transmission belt forms a transmission structure through the connecting shaft.
Preferably, the transmission belt is connected with the connecting shaft in a meshing manner, the top end of the connecting shaft penetrates through the inner side of the outer frame in a rotating manner, and a transmission wheel is fixedly arranged at the top end of the connecting shaft.
Preferably, a meshing transmission structure is formed between the transmission wheel and the driving wheel, the rotating speed ratio between the transmission wheel and the driving wheel is 4:1, and the driving wheel and the adjusting rod are in a fixed integrated structure.
Preferably, be fixed the setting between the avris of baffle and the inside avris of frame, and enclose between brush-holder stud and the frame and close and constitute the hold up tank to the avris dismantlement of hold up tank is installed the door strip.
Preferably, the connecting pipe is correspondingly connected with the upper side and the lower side of the outer frame, baffles are symmetrically arranged on the inner side of the connecting pipe in an up-and-down mode, and the baffles are of inclined semicircular structures.
Compared with the prior art, the invention has the beneficial effects that: the blackboard eraser capable of being overturned for rapid recycling is stable in structure, can be used for a long time, can be overturned, ensures rapid recycling, can improve teaching efficiency, is convenient to clean, and avoids dust diffusion;
1. the middle part of the sponge wiper is correspondingly inserted through the limiting rod, so that the sponge wiper is conveniently fixed through the corresponding fixation between the limiting rod and the fixing nut, and meanwhile, the fixing frame is integrally formed by injection molding, so that the service life of the whole structure is ensured, and the long-term use is ensured;
2. the fixing frame can be lifted up through the expansion between the supporting plate and the clamping groove, so that the fixing frame can rotate on the inner side of the supporting plate through the connecting column, the fixing frame is turned over for 180 degrees, and meanwhile, the fixing frame can be stably used through the clamping of the limiting groove and the limiting block;
3. through the transmission among the driving wheel, the transmission wheel and the connecting shaft, the connecting shaft is convenient to drive the transmission belt to transmit, so that the transmission belt can drive the brush rod to slide outside the sliding rod through the clamping of the transmission rod and the fixed plate, the bottom surface of the sponge wiper is cleaned through the brush hair by the brush rod, and dust is convenient to separate from the sponge wiper;
4. make the dust get into the hold up tank through the baffle being convenient for, through the setting of connecting pipe and baffle, avoid the dust to enter into the upside of baffle again, the dust disposal of being convenient for simultaneously.
Drawings
FIG. 1 is a front sectional view of the present invention;
FIG. 2 is a side sectional view of the present invention;
FIG. 3 is a schematic view of the overall structure of the outer frame of the present invention;
FIG. 4 is a schematic view of the overall structure of the fixing frame of the present invention;
FIG. 5 is a schematic view of a top-down cutaway configuration of the sponge wipe of the present invention;
FIG. 6 is a schematic view of a brush bar according to the present invention in a sectional view from a top plane;
FIG. 7 is a side sectional view of the spacing groove of the present invention;
FIG. 8 is a schematic front view of the present invention;
FIG. 9 is a schematic view of a rotational structure of the fixing frame of the present invention;
FIG. 10 is a schematic view of the overall structure of the stop lever of the present invention;
FIG. 11 is a schematic view of the connection structure of the driving belt and the brush bar according to the present invention;
FIG. 12 is a schematic view of the overall connection structure of the driving wheel and the driving wheel according to the present invention.
In the figure: 1. an outer frame; 2. a card slot; 3. a limiting plate; 4. a support plate; 5. a fixed mount; 6. connecting columns; 7. a limiting groove; 8. a limiting block; 9. a spring; 10. sponge wiping; 11. a limiting rod; 12. fixing a nut; 13. a brush bar; 14. brushing; 15. a slide bar; 16. a transmission belt; 17. a transmission rod; 18. a fixing plate; 19. a connecting shaft; 20. a driving wheel; 21. a driving wheel; 22. adjusting a rod; 23. a partition plate; 24. a storage tank; 25. a connecting pipe; 26. a baffle plate; 27. a door strip.
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.
Referring to fig. 1-12, the present invention provides a technical solution: a blackboard eraser capable of being overturned for rapid recycling comprises an outer frame 1, a clamping groove 2, a limiting plate 3, a supporting plate 4, a fixing frame 5, a connecting column 6, a limiting groove 7, a limiting block 8, a spring 9, a sponge eraser 10, a limiting rod 11, a fixing nut 12, a brush rod 13, brush hair 14, a slide rod 15, a transmission belt 16, a transmission rod 17, a fixing plate 18, a connecting shaft 19, a transmission wheel 20, a driving wheel 21, an adjusting rod 22, a baffle plate 23, a storage groove 24, a connecting pipe 25, a baffle plate 26 and a door strip 27, wherein the clamping groove 2 is formed in the outer frame 1, the limiting plate 3 fixed in the outer frame 1 is arranged on the inner side of the clamping groove 2, the supporting plate 4 is inserted into the inner side of the clamping groove 2, the fixing frame 5 is arranged on the inner side of the supporting plate 4, the connecting column 6 is, a limiting block 8 is arranged on the inner side of the limiting groove 7, and the tail end of the limiting block 8 is connected with a spring 9;
a sponge wiper 10 is arranged inside the fixed frame 5, the middle part of the sponge wiper 10 is connected with a limiting rod 11, and the top end of the limiting rod 11 is connected with a fixed nut 12;
a brush rod 13 is arranged below the fixed frame 5, bristles 14 are fixed on the top surface of the brush rod 13, a sliding rod 15 is connected inside the brush rod 13, a fixed plate 18 is arranged at the top end of the brush rod 13, a transmission belt 16 is arranged on the outer side below the brush rod 13, a transmission rod 17 is arranged on the outer side of the transmission belt 16, a connecting shaft 19 is connected on the inner side of the transmission belt 16, a transmission wheel 20 is arranged on the top of the connecting shaft 19, a driving wheel 21 is connected on the outer side of the transmission wheel 20, and an adjusting rod 22 is fixed on the outer side of the;
a partition 23 is fixed at the bottom of the inner side of the outer frame 1, a storage tank 24 is arranged below the partition 23, a connecting pipe 25 is arranged in the middle of the partition 23, a baffle 26 is fixed inside the connecting pipe 25, and a door strip 27 is arranged at the end of the storage tank 24.
If fig. 1, be corresponding grafting extending structure between draw-in groove 2 and the backup pad 4 in fig. 3 and fig. 4, and backup pad 4 constitutes to rotate through between spliced pole 6 and the mount 5 and is connected, and mount 5 is hollow frame structure, be convenient for wipe 10 installation to the sponge, be convenient for the rotation of mount 5, if in fig. 7 mount 5 corresponds the block through between spacing groove 7 and the stopper 8 and is connected, and spacing groove 7 is the symmetry setting in the outside of mount 5, and stopper 8 passes through spring 9 and constitutes elastic extending structure in the inboard of frame 1, can guarantee the relative spacing of mount 5.
Like in fig. 1 and 5 sponge wipe 10 be equidistant setting in the inboard of mount 5, and the sponge wipe 10 between the monomer is closely laminating in the inboard of mount 5 to sponge wipe 10 corresponds the interlude through gag lever post 11 and fixes in the inside of mount 5, is one-to-one screw thread fixed connection between gag lever post 11 and the fixation nut 12 moreover, can guarantee sponge wipe 10 fixed, guarantees stable installation.
As shown in fig. 1, 2 and 6, the brush rod 13 has bristles 14 uniformly distributed on the top surface thereof, and the bristles 14 are different in length, and the brush rod 13 forms a left-right sliding structure on the inner side of the outer frame 1 through the sliding rod 15, so that the sponge wiper 10 can be conveniently cleaned through the brush rod 13.
As shown in fig. 1, 11 and 12, the brush rod 13 is correspondingly connected with the transmission rod 17 through the fixing plate 18, and the transmission rod 17 is correspondingly fixedly connected with the transmission belt 16, and the transmission belt 16 forms a transmission structure through the connecting shaft 19, so as to drive the transmission belt 16 to transmit, thereby driving the transmission rod 17 to move, the transmission belt 16 is connected with the connecting shaft 19 in a meshing way, the top end of the connecting shaft 19 is rotatably arranged at the inner side of the outer frame 1 in a penetrating way, and the top end of the connecting shaft 19 is fixedly provided with a driving wheel 20 for facilitating transmission, a meshing transmission structure is formed between the driving wheel 20 and the driving wheel 21, the rotating speed ratio between the driving wheel 20 and the driving wheel 21 is 4:1, and the driving wheel 21 and the adjusting rod 22 are in a fixed integrated structure, so that the connecting shaft 19 can be ensured to rotate quickly, and the brush rod 13 can be further ensured to quickly clean the sponge wiper 10.
Be fixed setting as between the avris of FIG. 1 and FIG. 2 baffle 23 and the inside avris of frame 1, and enclose between brush-holder stud 13 and the frame 1 and close and constitute hold up tank 24, and the avris of hold up tank 24 is dismantled and is installed door strip 27, be convenient for carry out the dust and collect, the upper and lower both sides of frame 1 are connected in the correspondence of connecting pipe 25, and the inboard of connecting pipe 25 is upper and lower symmetry and is provided with baffle 26, and baffle 26 is the semicircular structure that inclines, avoids the dust backward flow.
The working principle is as follows: when the blackboard eraser capable of being overturned for rapid and repeated utilization is used, firstly, the blackboard eraser can be directly used through the handheld outer frame 1 when in use, the sponge eraser 10 can be used for erasing a blackboard, after the blackboard eraser is used for a period of time, the front surface of the sponge eraser 10 absorbs a large amount of dust, as shown in a figure 1, a figure 2, a figure 3, a figure 4 and a figure 9, the fixing frame 5 is lifted through the top end of the connecting column 6, the fixing frame 5 and the supporting plate 4 extend out on the inner side of the clamping groove 2, meanwhile, the limiting groove 7 is separated from the limiting block 8, then, through the rotary connection between the connecting column 6 and the supporting plate 4, the sponge eraser 10 is overturned for 180 degrees on the inner side of the supporting plate 4 through the fixing frame 5 and the connecting column 6, then, the fixing frame 5 retracts on the inner side of the clamping, the limiting block 8 forms an elastic telescopic structure through the spring 9, so that stability can be guaranteed, normal use is guaranteed, forward and reverse overturning of the sponge eraser 10 is facilitated, rapid recycling can be achieved, and teaching efficiency is guaranteed;
and as shown in fig. 1, fig. 6, fig. 8, fig. 11 and fig. 12, the adjustment rod 22 and the driving wheel 21 are integrally structured, the driving wheel 21 can be directly rotated by the adjustment rod 22, so that the driving wheel 21 drives the driving wheel 20 to rotate, and further the driving wheel 20 drives the connecting shaft 19 to rotate, since the end of the connecting shaft 19 is correspondingly engaged with the driving belt 16, the driving belt 16 is driven at the inner side of the outer frame 1, and meanwhile, during the driving of the driving belt 16, the driving rod 17 can be driven to move left and right due to the fixed connection between the driving belt 16 and the driving rod 17, and since the driving belt 16 is in annular transmission, the driving rod 17 can reciprocate left and right, and simultaneously, through the engagement between the driving rod 17 and the fixed plate 18, the driving rod 17 can drive the brush rod 13 to slide left and right on the outer side of the sliding rod 15, so that the brush rod 13, so as to be convenient for repeated use;
meanwhile, as shown in fig. 1 and 2, when the sponge eraser 10 is cleaned, the partition plate 23 is obliquely arranged, so that dust slides down to the inner side of the storage tank 24 through the connecting pipe 25, and meanwhile, the baffle 26 with a semicircular structure is obliquely arranged inside the connecting pipe 25, so that dust can be prevented from falling back to the top of the outer frame 1 due to the overturning of the blackboard eraser, and dust collection is ensured, so that dust treatment is facilitated, dust diffusion is avoided, and the whole working process of the blackboard eraser capable of being overturned for quick and repeated use is the same.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a blackboard eraser that can overturn quick reuse, includes frame (1), mount (5), brush-holder stud (13) and hold up tank (24), its characterized in that: the clamping groove (2) is formed in the outer frame (1), the limiting plate (3) fixed in the outer frame (1) is arranged on the inner side of the clamping groove (2), the supporting plate (4) is inserted into the inner side of the clamping groove (2), the fixing frame (5) is arranged on the inner side of the supporting plate (4), the connecting column (6) is installed at the top of the fixing frame (5), the limiting groove (7) which is also located at the top of the fixing frame (5) is arranged on the outer side of the connecting column (6), the limiting block (8) is arranged on the inner side of the limiting groove (7), and the tail end of the limiting block (8) is connected with the spring (9;
a sponge wiper (10) is arranged inside the fixing frame (5), the middle part of the sponge wiper (10) is connected with a limiting rod (11), and the top end of the limiting rod (11) is connected with a fixing nut (12);
a brush rod (13) is arranged below the fixed frame (5), bristles (14) are fixed on the top surface of the brush rod (13), a sliding rod (15) is connected inside the brush rod (13), a fixed plate (18) is arranged at the top end of the brush rod (13), a transmission belt (16) is arranged on the outer side of the lower portion of the brush rod (13), a transmission rod (17) is arranged on the outer side of the transmission belt (16), a connecting shaft (19) is connected to the inner side of the transmission belt (16), a transmission wheel (20) is arranged at the top of the connecting shaft (19), a driving wheel (21) is connected to the outer side of the transmission wheel (20), and an adjusting rod (22) is fixed on the outer side of the driving wheel;
the frame is characterized in that a partition plate (23) is fixed to the bottom of the inner side of the outer frame (1), a storage tank (24) is arranged below the partition plate (23), a connecting pipe (25) is arranged in the middle of the partition plate (23), a baffle plate (26) is fixed inside the connecting pipe (25), and a door strip (27) is arranged at the end of the storage tank (24).
2. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: the clamping groove (2) and the supporting plate (4) are in corresponding inserting telescopic structures, the supporting plate (4) is rotatably connected with the fixing frame (5) through the connecting column (6), and the fixing frame (5) is of a hollow frame structure.
3. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: the fixing frame (5) is connected with the limiting blocks (8) in a corresponding clamping mode through the limiting grooves (7), the limiting grooves (7) are symmetrically arranged on the outer side of the fixing frame (5), and the limiting blocks (8) form an elastic telescopic structure on the inner side of the outer frame (1) through springs (9).
4. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: sponge is wiped (10) and is equidistant setting in the inboard of mount (5), and sponge is wiped (10) and is closely laminated in the inboard of mount (5) between the monomer to sponge is wiped (10) and is corresponded the interlude through gag lever post (11) and fix the inside at mount (5), is one-to-one screw thread fixed connection between gag lever post (11) and fixation nut (12) moreover.
5. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: the top surface of the brush rod (13) is uniformly distributed with bristles (14), the lengths of the bristles (14) are different, and the brush rod (13) forms a left-right sliding structure on the inner side of the outer frame (1) through a sliding rod (15).
6. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: the brush rod (13) is correspondingly clamped and connected with the transmission rod (17) through the fixing plate (18), the transmission rod (17) is correspondingly and fixedly connected with the transmission belt (16), and the transmission belt (16) forms a transmission structure through the connecting shaft (19).
7. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: the transmission belt (16) is connected with the connecting shaft (19) in a meshing manner, the top end of the connecting shaft (19) penetrates through and is rotatably installed on the inner side of the outer frame (1), and a transmission wheel (20) is fixedly arranged at the top end of the connecting shaft (19).
8. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: a meshing transmission structure is formed between the transmission wheel (20) and the driving wheel (21), the rotating speed ratio between the transmission wheel (20) and the driving wheel (21) is 4:1, and the driving wheel (21) and the adjusting rod (22) are in a fixed integrated structure.
9. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: be fixed the setting between the avris of baffle (23) and the inside avris of frame (1), and enclose between brush-holder stud (13) and frame (1) and close constitution hold up (24) to the avris of hold up (24) is dismantled and is installed doorstrip (27).
10. The blackboard eraser capable of being overturned for quick recycling according to claim 1, wherein: the connecting pipe (25) is correspondingly connected with the upper side and the lower side of the outer frame (1), the inner side of the connecting pipe (25) is provided with baffle plates (26) in an up-down symmetrical mode, and the baffle plates (26) are of an inclined semicircular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011172601.2A CN112192978A (en) | 2020-10-28 | 2020-10-28 | Blackboard eraser capable of being overturned for quick and repeated use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011172601.2A CN112192978A (en) | 2020-10-28 | 2020-10-28 | Blackboard eraser capable of being overturned for quick and repeated use |
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| Publication Number | Publication Date |
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| CN112192978A true CN112192978A (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011172601.2A Pending CN112192978A (en) | 2020-10-28 | 2020-10-28 | Blackboard eraser capable of being overturned for quick and repeated use |
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| CN (1) | CN112192978A (en) |
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| CN204055095U (en) * | 2014-08-29 | 2014-12-31 | 何崇耀 | A kind of blackboard eraser |
| CN204249671U (en) * | 2014-12-01 | 2015-04-08 | 欧阳少威 | A kind of novel formula automatically cleaning blackboard eraser of turning round |
| CN205674746U (en) * | 2015-12-30 | 2016-11-09 | 李仁杰 | A kind of black board eraser with chalk-dust collector |
| CN205601462U (en) * | 2016-01-15 | 2016-09-28 | 胡媛媛 | Reciprocal wiping arrangement of teaching blackboard face |
| CN106114015A (en) * | 2016-07-25 | 2016-11-16 | 张艳龙 | A kind of self-cleaning crawler belt device for blackboard eraser and using method thereof |
| CN207657477U (en) * | 2016-12-22 | 2018-07-27 | 李宪玲 | A kind of primary school math teaching blackboard |
| CN207045009U (en) * | 2017-04-28 | 2018-02-27 | 邢筠秋 | A kind of electric dust-proof blackboard eraser |
| CN109159583A (en) * | 2018-11-06 | 2019-01-08 | 苏州中誉智骏企业管理有限公司 | A kind of environmentally friendly blackboard for teaching with the grey effect of collection |
| CN209191555U (en) * | 2018-11-27 | 2019-08-02 | 长安大学 | A kind of type of push and pull up down blackboard |
| CN209534593U (en) * | 2019-01-21 | 2019-10-25 | 王逸梵 | Blackboard eraser |
| CN210553813U (en) * | 2019-05-27 | 2020-05-19 | 解成维 | Teaching blackboard with blackboard eraser |
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Application publication date: 20210108 |
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