CN109109529A - A kind of blackboard eraser of anti-dropout - Google Patents
A kind of blackboard eraser of anti-dropout Download PDFInfo
- Publication number
- CN109109529A CN109109529A CN201811044757.5A CN201811044757A CN109109529A CN 109109529 A CN109109529 A CN 109109529A CN 201811044757 A CN201811044757 A CN 201811044757A CN 109109529 A CN109109529 A CN 109109529A
- Authority
- CN
- China
- Prior art keywords
- shell
- blackboard eraser
- blackboard
- shedding mechanism
- dropout
- 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.)
- Withdrawn
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 230000005389 magnetism Effects 0.000 claims description 26
- 210000003813 thumb Anatomy 0.000 claims description 25
- 210000003811 finger Anatomy 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 239000000428 dust Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000019693 Lung disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- B43L21/04—Wiper holders
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The present invention relates to a kind of blackboard erasers of anti-dropout, belong to tutor auxiliary platform appliance technology.The present invention is made of shell and erasing felt, and shell is box-like in cuboid, anti-shedding mechanism is provided on shell, the lower surface in shell is fixed with flat thin magnet, and enclosure bottom is provided with erasing felt by velcro.The present invention not only may be implemented shell fitting be placed on blackboard, can also by wipe felt face be fitted on blackboard, avoid blackboard eraser arbitrarily places cause using when need searching and waste time；More importantly, the anti-shedding mechanism structure of setting is simple, is convenient for production, it can effectively prevent falling off for blackboard eraser in use process, be avoided that and fall to cause on the ground chalk dust random winged problem wantonly in blackboard eraser use process, give Faculty and Students one clean study place.
Description
Technical field
The present invention relates to a kind of blackboard erasers of anti-dropout, belong to tutor auxiliary platform appliance technology.
Background technique
Blackboard eraser is the tool often needed to use in teaching process, and existing blackboard eraser is essentially all to pass through plastic casing
Be clamped in it setting erasing felt constitute, when erasing the board be easy fall off from hand, when absorption chalk dust blackboard eraser from
When 1.5m falls floor in next high ground, chalk dust can drift out from erasing felt, be easy to allow just in the teacher of erasing blackboard
Or student and the close classmate for saying edge of table suck more chalk dusts and enter in body, go down to be easy to cause lung's disease for a long time
Disease.It is therefore desirable to which a kind of blackboard eraser not easy to fall off in erasing blackboard is for solving the above problems.
Summary of the invention
It is an object of the present invention in view of the above shortcomings of the prior art, provide a kind of structure it is simple, it is easy to make,
It can effectively prevent the anti-dropout blackboard eraser that the blackboard eraser in use falls off.
The present invention is to realize above-mentioned purpose by following technical solution:
The blackboard eraser of the anti-dropout is made of shell and erasing felt, it is characterised in that: shell is box-like in cuboid, on shell
It is provided with anti-shedding mechanism, the lower surface in shell is fixed with flat thin magnet, and enclosure bottom is provided with erasing felt by velcro.
The anti-shedding mechanism is soft magnetism iron bar, and soft magnetism iron bar is mounted on the upper surface of shell, soft magnetism iron bar
Both ends can move freely a distance on the shell.
It is horizontally arranged with the groove for placing soft magnetism iron bar in the middle part of the upper surface of outer cover, divides on the cell wall of groove two sides
It is not provided with the through-hole item mobile for soft magnetism iron bar.
The both ends of the soft magnetism iron bar are respectively arranged with mobile limited block.
The anti-shedding mechanism is made of thumb pad and four finger pads, and thumb pad is symmetricly set on the 1/ of the side of shell
At 3 positions, four finger pads are set in the middle part of the shell other side opposite with thumb pad.
The thumb pad is in thumb type, and four finger pads are in long strip, are respectively arranged on thumb pad and four finger pads anti-
Sliding protrusion.
The anti-shedding mechanism is made of installation part and pull ring, and installation part is symmetricly set on the middle part of upper surface of outer cover,
The both ends rotation connection setting of pull ring is on mountings.
The left and right ends of the upper surface of outer cover are respectively arranged with piece of magnetic material.
The beneficial effect of the present invention compared with prior art is:
The blackboard eraser of the anti-dropout is due to being provided with flat thin magnet in its shell, so that the erasing felt face of blackboard eraser can be also pasted onto
On blackboard, it is not easy to fall；For the shell for being provided with soft magnetism iron bar, it can be attached to blackboard by the soft magnetism iron bar first
On, secondly, using when allow the end of soft magnetism iron bar respectively to mobile in the middle part of shell, formed an arc passed through for palm take hold it is black
Blackboard eraser effectively prevent falling off for blackboard eraser in use process；Using thumb pad anti-dropout shell when in use, thumb and remaining
Finger is individually positioned in the corresponding position on shell, can effectively increase the frictional force of finger and blackboard eraser, prevent in use process
It falls off；Using pull ring structure anti-dropout shell when in use, make index finger pass through pull ring, then hold blackboard eraser wiped,
Prevent falling off for blackboard eraser in use process；The configuration of the present invention is simple, design rationally, are avoided that in blackboard eraser use process
The problem for causing chalk dust disorderly to fly wantonly on the ground, gives Faculty and Students one clean study place.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of setting anti-shedding mechanism first embodiment of the invention；
Fig. 2 is the structural schematic diagram of the soft magnetism iron bar in anti-shedding mechanism first embodiment；
Fig. 3 is the structural schematic diagram of setting anti-shedding mechanism second embodiment of the invention；
Fig. 4 is the structural schematic diagram of four finger pads in anti-shedding mechanism second embodiment；
Fig. 5 is the structural schematic diagram of setting anti-shedding mechanism 3rd embodiment of the invention.
In figure: 1, shell, 2, erasing felt, 3, soft magnetism iron bar, 4, groove, 5, through-hole item, 6, mobile limited block, 7, thumb
Pad, 8, four finger pads, 9, anti-skid bulge, 10, installation part, 11, pull ring, 12, piece of magnetic material.
Specific embodiment
The blackboard eraser of the anti-dropout is made of shell 1 and erasing felt 2, and shell 1 is box-like in cuboid, is set on shell 1
It is equipped with anti-shedding mechanism, the lower surface in shell 1 is fixed with flat thin magnet, convenient for keeping the erasing felt 2 being arranged outside shell light
It is adsorbed on blackboard, convenient for that can find blackboard eraser at a glance, 1 underrun velcro of shell is provided with erasing felt 2, convenient
Wipe felt 2 fitting with remove.
Anti-shedding mechanism has following 3 specific embodiments:
Embodiment 1: anti-shedding mechanism is soft magnetism iron bar 3, and soft magnetism iron bar 3 is mounted on the upper surface of shell 1, soft magnetism iron bar 3
Both ends can move freely a distance on shell 1, be horizontally arranged in the middle part of 1 upper surface of shell and place soft magnetism iron bar 3
Groove 4 is respectively arranged with the through-hole item 5 mobile for soft magnetism iron bar 3, the both ends difference of soft magnetism iron bar 3 on the cell wall of 4 two sides of groove
It is provided with mobile limited block 6；Mobile limited block 6 is slightly wider than the width of soft magnetism iron bar 3, and the mobile installation of limited block 6 is placed on through-hole
It in item 5, and can be moved along through-hole item 5, when close to 1 center of shell simultaneously, soft magnetism iron bar 3 is just formed with 1 upper surface of shell
Palm is passed through the half arc ring when erasing blackboard is pinched and holds blackboard eraser, so that it may effectively prevent blackboard by one and half arc rings
Wiping falls off in erase process；When not in use, it is flat on soft magnetism iron bar 3 in groove 4, blackboard eraser can be allow to pass through shell 1
Upper surface is pasted on blackboard；
Embodiment 2: anti-shedding mechanism is made of thumb pad 7 and four finger pads 8, and thumb pad 7 is in thumb type, and four finger pads 8 are in length
Anti-skid bulge 9 is respectively arranged in strip, thumb pad 7 and four finger pads 8；Thumb pad 7 is symmetricly set on the 1/ of the side of shell 1
At 3 positions, four finger pads 8 are set in the middle part of 1 other side of shell opposite with thumb pad 7, in addition use the anti-shedding mechanism, outside
The left and right ends of 1 upper surface of shell are respectively arranged with piece of magnetic material 12, and the setting of piece of magnetic material 12 makes it to play anti-dropout
The effect as soft magnetism iron bar 3 in mechanism embodiment 1 is convenient for passing through 1 upper surface of shell for blackboard eraser absorption and blackboard
On, when using its erasing blackboard, when holding blackboard, thumb is placed in thumb pad 7, then remaining four finger will be used
Property fallen into four finger pads 8 under natural conditions, the arranged symmetrically of thumb pad 7 makes rationally can easily make convenient for left or right hand
Finger and shell 1 can be increased well due to being both provided with anti-skid bulge 9 in thumb pad 7 and four finger pads 8 with the blackboard eraser
The friction of side, prevents blackboard eraser from falling off in use process；
Embodiment 3: anti-shedding mechanism is made of installation part 10 and pull ring 11, and installation part 10 is symmetricly set on 1 upper surface of shell
The both ends rotation connection at middle part, pull ring 11 is arranged on installation part 10, when using the anti-shedding mechanism, 1 upper surface of shell
Left and right ends are respectively arranged with piece of magnetic material 12, act on as the effect for the piece of magnetic material 12 being arranged in embodiment；
Using pull ring structure anti-shedding mechanism when, user index finger or middle finger (according to personal habits) need to be passed through to pull ring 11 come take hold it is black
Blackboard eraser falls off in this way, just can effectively prevent it when erasing blackboard.
The configuration of the present invention is simple, design rationally, are avoided that in blackboard eraser use process and fall to cause on the ground chalk dust wantonly
Disorderly winged problem, gives Faculty and Students one clean study place.
The above is presently preferred embodiments of the present invention, and the example above explanation not make for the essence of the present invention by content
Limitation in any form, technology of the person of an ordinary skill in the technical field after having read this specification according to the present invention
Essence is to any simple modification or deformation made by the above specific embodiment, and the technology contents possibly also with the disclosure above
The equivalent embodiment of equivalent variations is changed or is modified to, all of which are still within the scope of the technical scheme of the invention, without departing from
The spirit and scope of the invention.
Claims (8)
1. a kind of blackboard eraser of anti-dropout, it is made of shell (1) and erasing felt (2), it is characterised in that: shell (1) is in length
Cube shape is box-like, and anti-shedding mechanism is provided on shell (1), and the lower surface in shell (1) is fixed with flat thin magnet, shell (1) bottom
Face is provided with erasing felt (2) by velcro.
2. a kind of blackboard eraser of anti-dropout according to claim 1, it is characterised in that: the anti-shedding mechanism is soft magnetism
Iron bar (3), soft magnetism iron bar (3) are mounted on the upper surface of shell (1), and the both ends of soft magnetism iron bar (3) can be on shell (1) certainly
By mobile a distance.
3. a kind of blackboard eraser of anti-dropout according to claim 2, it is characterised in that: described shell (1) upper surface
Middle part is horizontally arranged with the groove (4) for placing soft magnetism iron bar (3), is respectively arranged on the cell wall of groove (4) two sides for soft magnet
The mobile through-hole item (5) of item (3).
4. a kind of blackboard eraser of anti-dropout according to claim 2 or 3, it is characterised in that: the soft magnetism iron bar (3)
Both ends are respectively arranged with mobile limited block (6).
5. a kind of blackboard eraser of anti-dropout according to claim 1, it is characterised in that: the anti-shedding mechanism is by thumb
It pads (7) and four finger pads (8) is constituted, thumb pad (7) is symmetricly set at 1/3 position of the side of shell (1), with thumb pad
(7) four finger pads (8) are set in the middle part of opposite shell (1) other side.
6. a kind of blackboard eraser of anti-dropout according to claim 5, it is characterised in that: the thumb pad (7) is in thumb
Type, four finger pads (8) are in long strip, are respectively arranged with anti-skid bulge (9) in thumb pad (7) and four finger pads (8).
7. a kind of blackboard eraser of anti-dropout according to claim 1, it is characterised in that: the anti-shedding mechanism is by installing
Part (10) and pull ring (11) are constituted, and installation part (10) is symmetricly set on the middle part of shell (1) upper surface, and the both ends of pull ring (11) turn
Dynamic connection is arranged on installation part (10).
8. a kind of blackboard eraser of anti-dropout according to claim 5 or 7, it is characterised in that: described shell (1) upper surface
Left and right ends be respectively arranged with piece of magnetic material (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044757.5A CN109109529A (en) | 2018-09-07 | 2018-09-07 | A kind of blackboard eraser of anti-dropout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811044757.5A CN109109529A (en) | 2018-09-07 | 2018-09-07 | A kind of blackboard eraser of anti-dropout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109109529A true CN109109529A (en) | 2019-01-01 |
Family
ID=64858968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811044757.5A Withdrawn CN109109529A (en) | 2018-09-07 | 2018-09-07 | A kind of blackboard eraser of anti-dropout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109109529A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200348864Y1 (en) * | 2004-01-19 | 2004-04-30 | 지성환 | White board eraser |
| KR200412792Y1 (en) * | 2005-11-03 | 2006-03-31 | 차지원 | A blackboard eraser of both faces |
| JP2010241116A (en) * | 2009-04-09 | 2010-10-28 | Sa Yoon Hong | Blackboard eraser tool |
| CN104149525A (en) * | 2014-08-26 | 2014-11-19 | 江苏省锡山中等专业学校 | Blackboard eraser |
| CN206312426U (en) * | 2016-12-29 | 2017-07-07 | 王红 | JEFC Multifunctional teaching device |
| CN206634420U (en) * | 2017-04-11 | 2017-11-14 | 徐萍 | A kind of containing box with handle-concealed |
| CN107584944A (en) * | 2017-10-18 | 2018-01-16 | 李青阳 | A kind of multifunctional blackboard eraser |
-
2018
- 2018-09-07 CN CN201811044757.5A patent/CN109109529A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200348864Y1 (en) * | 2004-01-19 | 2004-04-30 | 지성환 | White board eraser |
| KR200412792Y1 (en) * | 2005-11-03 | 2006-03-31 | 차지원 | A blackboard eraser of both faces |
| JP2010241116A (en) * | 2009-04-09 | 2010-10-28 | Sa Yoon Hong | Blackboard eraser tool |
| CN104149525A (en) * | 2014-08-26 | 2014-11-19 | 江苏省锡山中等专业学校 | Blackboard eraser |
| CN206312426U (en) * | 2016-12-29 | 2017-07-07 | 王红 | JEFC Multifunctional teaching device |
| CN206634420U (en) * | 2017-04-11 | 2017-11-14 | 徐萍 | A kind of containing box with handle-concealed |
| CN107584944A (en) * | 2017-10-18 | 2018-01-16 | 李青阳 | A kind of multifunctional blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190101 |