CN109203799A - A kind of blackboard eraser for preventing chalk dust from flying upward - Google Patents
A kind of blackboard eraser for preventing chalk dust from flying upward Download PDFInfo
- Publication number
- CN109203799A CN109203799A CN201811337672.6A CN201811337672A CN109203799A CN 109203799 A CN109203799 A CN 109203799A CN 201811337672 A CN201811337672 A CN 201811337672A CN 109203799 A CN109203799 A CN 109203799A
- Authority
- CN
- China
- Prior art keywords
- cavity
- chalk dust
- mounting blocks
- blackboard eraser
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000428 dust Substances 0.000 title claims abstract description 44
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 241000486406 Trachea Species 0.000 claims abstract description 5
- 210000003437 trachea Anatomy 0.000 claims abstract description 5
- 241000883990 Flabellum Species 0.000 claims description 12
- 230000036541 health Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Abstract
The invention discloses a kind of blackboard erasers for preventing chalk dust from flying upward, including box body, the upper end of the box body offers the first groove, the lower end of the box body offers mounting groove, the inside of the mounting groove is equipped with multiple groups cleaning mechanism, every group of cleaning mechanism includes the mounting blocks for being bonded in top in mounting groove, the inside of each mounting blocks offers cylindrical cavity, the inner sidewall upper end of the cavity is bonded with arc panel, the lower end of the cavity is bonded with elastic plate, and the two sides of the cavity are equipped with multiple tracheaes.Advantage is: the present invention is when blackboard eraser is detached from blackboard, cavity after deformation, which resets, absorbs chalk dust, it is absorbed into the chalk dust flown upward in cavity, it avoids being sucked by academics and students and influences health, and it is adsorbed on the chalk dust in cavity on static board by adsorbing mechanism, chalk dust is avoided to spray in cavity deformation next time with air-flow, to allow chalk dust is stable to rest in cavity.
Description
Technical field
The present invention relates to instructional technology field more particularly to a kind of blackboard erasers for preventing chalk dust from flying upward.
Background technique
Blackboard eraser is article common in existing teaching field, is generally used to the letter written with chalk for facilitating teacher to clean blackboard, makes
It is high-efficient with convenience, but existing blackboard eraser is when in use, can generate chalk dust, part chalk dust is adsorbed on blackboard eraser,
But there are also part chalk dusts when blackboard eraser is mobile, is gathered in the side of blackboard eraser, more more poly- more, the sponge of blackboard eraser lower end
It can not effectively adsorb, when blackboard eraser fast moves, since self inertia chalk dust is covered on blackboard eraser side wall, still
When blackboard eraser stops working far from blackboard, flown upward under the mobile wind-force effect generated of self gravity and blackboard eraser.
Chalk ash particle is small, can wave under the waving of very little, to entire religion in the walking about and breathe of teacher
Room sprawling, and in the breathing of teacher and classmate, into body, under permanent accumulation, seriously affect teacher and classmates
Health.
For this purpose, we have proposed a kind of blackboard erasers for preventing chalk dust from flying upward.
Summary of the invention
It is flown upward the purpose of the present invention is to solve part chalk dust when blackboard eraser in the prior art cleans chalk dust ash
Problem, and a kind of blackboard eraser for preventing chalk dust from flying upward proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of blackboard eraser for preventing chalk dust from flying upward, including box body, the upper end of the box body offers the first groove, described
The lower end of box body offers mounting groove, and the inside of the mounting groove is equipped with multiple groups cleaning mechanism, and every group of cleaning mechanism includes bonding
The mounting blocks on top in mounting groove, the inside of each mounting blocks offer cylindrical cavity, the cavity it is interior
Sidewall upper is bonded with arc panel, and the lower end of the cavity is bonded with elastic plate, and the two sides of the cavity are equipped with multiple tracheaes, often
The other end of a tracheae runs through elastic plate and mounting blocks, and the top of the cavity offers first through hole, and described first
Annular slab is installed, the internal slide of first groove is connected with hollow net box, and the lower end of the net box is equipped in through-hole
With the matched plate of annular slab, the lower end of the net box is symmetrically fixedly connected with multiple reset springs, each reset spring
Lower end be fixedly connected with the bottom end of the first groove, the inside of the cavity is equipped with adsorbing mechanism.
In the above-mentioned blackboard eraser for preventing chalk dust from flying upward, the adsorbing mechanism includes being fixedly mounted in the middle part of cavity
The middle part of the static board of annular, the static board is equipped with shaft, and the two sides of the shaft run through mounting blocks and are plugged in installation
In the side wall of slot, equal fixing sleeve is connected to idler wheel in the shaft of mounting blocks two sides, right in the shaft in static board
Title is fixedly connected with multiple flabellums, and each flabellum is contacted with static board.
In the above-mentioned blackboard eraser for preventing chalk dust from flying upward, the top of the net box be symmetrically fixedly connected there are four support
Block.
In the above-mentioned blackboard eraser for preventing chalk dust from flying upward, the lower end of each mounting blocks offers a groove.
Compared with prior art, the advantages of blackboard eraser for originally preventing chalk dust from flying upward, is:
1, the present invention is by being arranged deformable mounting blocks, and when blackboard eraser is detached from blackboard, the cavity after deformation, which resets, to be inhaled
Chalk dust is received, is absorbed into the chalk dust flown upward in cavity, avoiding being sucked by academics and students influences health；
2, the present invention is adsorbed on the chalk dust in cavity on static board by adsorbing mechanism, avoids chalk dust next
It is sprayed in secondary cavity deformation with air-flow, to allow chalk dust is stable to rest in cavity.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of internal structure for the blackboard eraser for preventing chalk dust from flying upward proposed by the present invention；
Fig. 2 is the internal mechanism schematic diagram of mounting blocks in a kind of blackboard eraser for preventing chalk dust from flying upward proposed by the present invention；
Fig. 3 is a kind of side structure schematic diagram for the blackboard eraser for preventing chalk dust from flying upward proposed by the present invention.
In figure: 1 box body, 2 mounting grooves, 3 first grooves, 4 mounting blocks, 5 cavitys, 6 arc panels, 7 elastic plates, 8 tracheaes, 9 rings
Shape plate, 10 net boxes, 11 plates, 12 reset springs, 13 supporting blocks, 14 shafts, 15 idler wheels, 16 static boards, 17 flabellums.
Specific embodiment
Following embodiment only exists in illustrative purpose, limits the scope of the invention without being intended to.
Embodiment
Referring to Fig.1-3, a kind of blackboard eraser for preventing chalk dust from flying upward, including box body 1, the upper end of box body 1 offer first
Groove 3, the lower end of box body 1 offer mounting groove 2, and the inside of mounting groove 2 is equipped with multiple groups cleaning mechanism, and every group of cleaning mechanism includes
The mounting blocks 4 on top in mounting groove 2 are bonded in, sponge can be used in mounting blocks 4, and the lower end of each mounting blocks 4 offers striped
Slot, groove increasing friction force also facilitate the more chalk dusts of storage.
The inside of each mounting blocks 4 offers cylindrical cavity 5, and the inner sidewall upper end of cavity 5 is bonded with arc panel
6, the lower end of cavity 5 is bonded with elastic plate 7, and elastic plate 7 facilitates the reset of mounting blocks 4, also functions to closed effect, and sponge is made
Mounting blocks 4 it is ventilative, the two sides of cavity 5 are equipped with multiple tracheaes 8, and arc panel 6 and tracheae 8 are all made of the material of inner wall smooth, often
The other end of a tracheae 8 runs through elastic plate 7 and mounting blocks 4, and the top of cavity 5 offers first through hole, peace in first through hole
Equipped with annular slab 9, the internal slide of the first groove 3 is connected with hollow net box 10, and the lower end of net box 10 is equipped with and annular slab 9
The plate 11 matched, the lower end of net box 10 are symmetrically fixedly connected with multiple reset springs 12, the lower end of each reset spring 12 with
The bottom end of first groove 3 is fixedly connected, and under the pressure effect of teacher's palm, net box 10 is contracted in the first groove 3, plate 11
It is inserted into annular slab 9, so that closed ring plate 9, the lower end of mounting blocks 4 and elastic plate 7 deform, cavity 5 compresses, and gas can only lead to
The ejection of tracheae 8 is crossed, the lower end of mounting blocks 4 and blackboard contact area are maximum at this time, and teacher moves box body 1 at this time, drive mounting blocks 4
It is mobile, to be cleaned to blackboard.
After the completion of cleaning, after the completion of blackboard eraser use, blackboard eraser is upside down on the edge under blackboard or on table, it is empty
Chamber 5 restores to the original state under the elastic reaction of elastic plate 7 and mounting blocks 4 itself.
The top of net box 10 is symmetrically fixedly connected there are four supporting block 13, avoids 10 adhesion chalk dust of net box, cavity 5 it is interior
Portion is equipped with adsorbing mechanism, and adsorbing mechanism includes the static board 16 for being fixedly mounted on the annular at 5 middle part of cavity, 16 lateral wall of static board
Smooth, the middle part of static board 16 is equipped with shaft 14, and the two sides of shaft 14 run through mounting blocks 4 and are plugged in the side wall of mounting groove 2
In, equal fixing sleeve is connected to idler wheel 15 in the shaft 14 of 4 two sides of mounting blocks, and idler wheel 15 uses elastic material, to make idler wheel 15
The deformation with the deformation of mounting blocks 4, is symmetrically fixedly connected with multiple flabellums 17, each flabellum in the shaft 14 in static board 16
17 contact with static board 16, and blackboard eraser is mobile, and idler wheel 15 rotates, and drive flabellum 17 to rotate by shaft 14, flabellum 17 with it is quiet
The friction of battery plate 16 generates electrostatic, to be adsorbed on chalk dust in cavity 5.
It is worth noting that, in order to preferably play advantages of the present invention, when using blackboard eraser, each mobile blackboard sassafras
Afterwards, all by blackboard eraser far from blackboard, facilitate cavity 5 to reset and absorb chalk dust, avoid in the case where cavity 5 compresses, it is continuous to move
Dynamic blackboard eraser cleans blackboard.
In the present invention, in use, holding box body 1, under the pressure effect of teacher's palm, net box 10 is contracted to the first groove
In 3, plate 11 is inserted into annular slab 9, so that closed ring plate 9, the lower end of mounting blocks 4 and elastic plate 7 deform, cavity 5 compresses,
Gas is overflowed by tracheae 8, and the lower end of mounting blocks 4 and blackboard contact area are maximum at this time, and teacher moves box body 1 at this time, is driven
Mounting blocks 4 are mobile, to clean to blackboard, part chalk dust is gathered in the two sides of mounting blocks 4, in blackboard eraser far from blackboard
When, under the effect of the elastic force of mounting blocks 4 and elastic plate 7, cavity 5 restores to the original state, and by tracheae 8, sucks the band chalk dust of two sides
Gas avoid teacher to avoid flying upward for chalk dust and classmate come to harm；
In 4 moving process of mounting blocks, idler wheel 15 is rotated, so that shaft 14 be driven to rotate, flabellum 17 and static board 16 are sent out
Raw friction, so that static board 16 be made to generate electrostatic, the static board 16 with electrostatic adsorbs the chalk dust in cavity 5, avoids chalk
Ash is in 5 contraction process of cavity next time the problem of chalk dust ejection；
After the completion of blackboard eraser use, blackboard eraser is upside down on the edge under blackboard, supporting block 13 supports blackboard eraser, resets
Spring 12 jacks up box body 1, and plate 11 penetrates through first through hole far from annular slab 9, quiet on static board 16 after a period of time
Electricity is disappeared by flabellum 17, shaft 14, box body 1 and blackboard contact, ground connection, and chalk dust slides on arc panel 6, and passes through annular
Plate 9 skids off on the edge on blackboard, it is only necessary to simply be cleared up by rag, due to the support of supporting block 13, on edge
Chalk dust will not be bonded on net box 10, facilitate the use of next teacher.
Although box body 1, mounting groove 2, the first groove 3, mounting blocks 4, cavity 5, arc panel 6, bullet is used more herein
Property plate 7, tracheae 8, annular slab 9, net box 10, plate 11, reset spring 12, supporting block 13, shaft 14, idler wheel 15, static board 16,
The terms such as flabellum 17, but it does not exclude the possibility of using other terms.The use of these items is only for more easily retouch
State and explain essence of the invention；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (4)
1. a kind of blackboard eraser for preventing chalk dust from flying upward, including box body (1), which is characterized in that the upper end of the box body (1) opens up
Have the first groove (3), the lower end of the box body (1) offers mounting groove (2), and it is clear that the inside of the mounting groove (2) is equipped with multiple groups
Clean mechanism, every group of cleaning mechanism include the mounting blocks (4) for being bonded in mounting groove (2) interior top, each mounting blocks (4) it is interior
Portion offers cylindrical cavity (5), and the inner sidewall upper end of the cavity (5) is bonded with arc panel (6), the cavity (5)
Lower end be bonded with elastic plate (7), the two sides of the cavity (5) are equipped with multiple tracheaes (8), each tracheae (8) it is another
Elastic plate (7) and mounting blocks (4) are run through in end, and the top of the cavity (5) offers first through hole, peace in the first through hole
Equipped with annular slab (9), the internal slide of first groove (3) is connected with hollow net box (10), under the net box (10)
End be equipped with annular slab (9) matched plate (11), the lower end of the net box (10) is symmetrically fixedly connected with multiple reset springs
(12), the lower end of each reset spring (12) is fixedly connected with the bottom end of the first groove (3), the cavity (5) it is interior
Portion is equipped with adsorbing mechanism.
2. a kind of blackboard eraser for preventing chalk dust from flying upward according to claim 1, which is characterized in that the adsorbing mechanism packet
The static board (16) for the annular being fixedly mounted in the middle part of cavity (5) is included, the middle part of the static board (16) is equipped with shaft (14), institute
The two sides for stating shaft (14) are run through mounting blocks (4) and are plugged in the side wall of mounting groove (2), the institute in mounting blocks (4) two sides
It states equal fixing sleeve on shaft (14) and is connected to idler wheel (15), be symmetrically fixedly connected in the shaft (14) in static board (16)
Multiple flabellums (17), each flabellum (17) contact with static board (16).
3. a kind of blackboard eraser for preventing chalk dust from flying upward according to claim 1, which is characterized in that the net box (10)
Top is symmetrically fixedly connected there are four supporting block (13).
4. a kind of blackboard eraser for preventing chalk dust from flying upward according to claim 1, which is characterized in that each mounting blocks
(4) lower end offers a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337672.6A CN109203799B (en) | 2018-11-12 | 2018-11-12 | Blackboard eraser capable of preventing chalk dust from flying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811337672.6A CN109203799B (en) | 2018-11-12 | 2018-11-12 | Blackboard eraser capable of preventing chalk dust from flying |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109203799A true CN109203799A (en) | 2019-01-15 |
| CN109203799B CN109203799B (en) | 2020-10-02 |
Family
ID=64996136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811337672.6A Expired - Fee Related CN109203799B (en) | 2018-11-12 | 2018-11-12 | Blackboard eraser capable of preventing chalk dust from flying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109203799B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123979A (en) * | 2020-09-28 | 2020-12-25 | 杭州师范大学钱江学院 | Air bag type dust removal blackboard eraser and using method thereof |
| CN112223941A (en) * | 2020-10-15 | 2021-01-15 | 杭州师范大学钱江学院 | Dust cleaning and absorbing type blackboard eraser and using method thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986224A (en) * | 1975-05-16 | 1976-10-19 | Yang Teh Tsao | Eraser with dust-collecting means |
| US4080683A (en) * | 1976-11-22 | 1978-03-28 | Chong Sun Yi | Chalk board eraser |
| JPH0623797U (en) * | 1992-08-05 | 1994-03-29 | さくら精機株式会社 | Eraser |
| CN203157519U (en) * | 2013-01-10 | 2013-08-28 | 中国石油大学(华东) | Electrostatic-precipitation blackboard eraser |
| JP2013184345A (en) * | 2012-03-07 | 2013-09-19 | Pilot Corporation | Eraser for white board |
| CN203974336U (en) * | 2014-01-19 | 2014-12-03 | 浙江商业职业技术学院 | Aspirating eraser |
| CN206357880U (en) * | 2016-11-22 | 2017-07-28 | 黄锦洪 | A kind of hand electric blackboard eraser |
| CN206374427U (en) * | 2016-11-10 | 2017-08-04 | 韩熠南 | A kind of large-scale dust-free black board eraser for magnet board |
| CN106004185B (en) * | 2016-06-29 | 2018-02-27 | 裴萌 | A kind of blackboard eraser for preventing that chalk dust from flying upward |
| CN107776298A (en) * | 2016-08-25 | 2018-03-09 | 刘倩 | A kind of eraser with means for absorbing chalk dust |
| CN208069214U (en) * | 2017-12-25 | 2018-11-09 | 张文峰 | A kind of dust absorption blackboard eraser |
-
2018
- 2018-11-12 CN CN201811337672.6A patent/CN109203799B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986224A (en) * | 1975-05-16 | 1976-10-19 | Yang Teh Tsao | Eraser with dust-collecting means |
| US4080683A (en) * | 1976-11-22 | 1978-03-28 | Chong Sun Yi | Chalk board eraser |
| JPH0623797U (en) * | 1992-08-05 | 1994-03-29 | さくら精機株式会社 | Eraser |
| JP2013184345A (en) * | 2012-03-07 | 2013-09-19 | Pilot Corporation | Eraser for white board |
| CN203157519U (en) * | 2013-01-10 | 2013-08-28 | 中国石油大学(华东) | Electrostatic-precipitation blackboard eraser |
| CN203974336U (en) * | 2014-01-19 | 2014-12-03 | 浙江商业职业技术学院 | Aspirating eraser |
| CN106004185B (en) * | 2016-06-29 | 2018-02-27 | 裴萌 | A kind of blackboard eraser for preventing that chalk dust from flying upward |
| CN107776298A (en) * | 2016-08-25 | 2018-03-09 | 刘倩 | A kind of eraser with means for absorbing chalk dust |
| CN206374427U (en) * | 2016-11-10 | 2017-08-04 | 韩熠南 | A kind of large-scale dust-free black board eraser for magnet board |
| CN206357880U (en) * | 2016-11-22 | 2017-07-28 | 黄锦洪 | A kind of hand electric blackboard eraser |
| CN208069214U (en) * | 2017-12-25 | 2018-11-09 | 张文峰 | A kind of dust absorption blackboard eraser |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123979A (en) * | 2020-09-28 | 2020-12-25 | 杭州师范大学钱江学院 | Air bag type dust removal blackboard eraser and using method thereof |
| CN112123979B (en) * | 2020-09-28 | 2021-10-22 | 杭州师范大学钱江学院 | Air bag type dust removal blackboard eraser and using method thereof |
| CN112223941A (en) * | 2020-10-15 | 2021-01-15 | 杭州师范大学钱江学院 | Dust cleaning and absorbing type blackboard eraser and using method thereof |
| CN112223941B (en) * | 2020-10-15 | 2021-12-07 | 杭州师范大学钱江学院 | Dust cleaning and absorbing type blackboard eraser and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109203799B (en) | 2020-10-02 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200904 Address after: 318025 Pukou East Village, Yuanqiao Town, Huangyan District, Taizhou City, Zhejiang Province Applicant after: Taizhou Huangyan Dingjian Plastic Industry Co.,Ltd. Address before: 110000 No. 120 Dongling Road, Shenhe District, Liaoning, Shenyang Applicant before: Zhang Hongxia |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20201002 |