CN110053400A - A kind of dust-removing blackboard eraser - Google Patents
A kind of dust-removing blackboard eraser Download PDFInfo
- Publication number
- CN110053400A CN110053400A CN201910379070.5A CN201910379070A CN110053400A CN 110053400 A CN110053400 A CN 110053400A CN 201910379070 A CN201910379070 A CN 201910379070A CN 110053400 A CN110053400 A CN 110053400A
- Authority
- CN
- China
- Prior art keywords
- dust
- negative pressure
- blackboard eraser
- collect plant
- pipe
- 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.)
- Pending
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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 present invention provides a kind of dust-removing blackboard erasers.Including slide bar, dust collect plant, device for blackboard eraser, sweep-up pipe and dust outlet tube, the dust collect plant is slidably connected on slide bar, the dust collect plant includes shell and negative pressure device, negative pressure device is set in the shell, the negative pressure device setting suction inlet, dust mouth and exhaust outlet, the device for blackboard eraser are provided with vacuum chamber, dust-collecting cavity and bristle；The vacuum chamber is connect by the sweep-up pipe with negative pressure cabin, and dust suction circuit is constituted, and the dust-collecting cavity is connect by the dust outlet tube with the dust mouth, and dirt circuit is gone out described in composition.Easy to use and flexible of the present invention, dust collection capacity is strong, time saving and energy saving when carrying out large area erasing, with strong points when small area is wiped or carries out specific aim modification to mistake.
Description
Technical field
The present invention designs a kind of teaching aid more particularly to a kind of dust-removing blackboard eraser.
Background technique
In teaching process, the letter written with chalk to write on the blackboard is wiped using blackboard eraser, can generate a large amount of chalk dust, is damaged
The health of user, especially teacher and students sitting in the front row, existing blackboard eraser, although can be with the chalk on erasing blackboard
Word, but there is also many problems in dedusting and on.
A kind of dust-proof blackboard eraser of patent CN201128335, discloses and cunning is respectively set at the top and bottom of blackboard body
Pulley is arranged in slot, the both ends of blackboard eraser, and pulley is slidably matched with sliding slot at the top and bottom of blackboard body, and is arranged in blackboard eraser
Dust catcher；The blackboard eraser erasing area that the invention provides is big, time saving and energy saving, it can however not targetedly being wiped, is only applicable in
It is wiped in large area, but in the real process of teaching, more situations is part erasing.
A kind of blackboard eraser of patent CN203267591U discloses the blackboard eraser with dust catcher and dust-collecting cavity, intercommunicating pore, should
When erasing the board, chalk dust is drawn into dust-collecting cavity patent by dust catcher；Dust cannot be inhaled into when blackboard eraser body interior has
When chalk dust in chamber, chalk dust drops into the region between dust-collecting cavity and intercommunicating pore, and the chalk dust for falling into the region can also
It is fallen out again by intercommunicating pore.In addition, though the device volume is small, flexible and convenient to use, but the device absorbs chalk
The ability of ash is limited, ineffective.
Design in the prior art is no while considering when needing large area to wipe, and needs quickly to wipe and when needs are small
Area just needs targetedly problem when wiping.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of dust-removing blackboard eraser, the dust-removing blackboard eraser include slide bar,
Dust collect plant, device for blackboard eraser, sweep-up pipe, dust outlet tube；The dust collect plant is slidably connected on slide bar；
The dust collect plant includes shell and negative pressure device, and negative pressure cabin is arranged in the shell, and the negative pressure cabin setting suction inlet goes out
Dirt mouth and exhaust outlet, are provided with inclined surface in the negative pressure cabin, and the dust mouth is located at inclined surface bottom, the negative pressure device with
Negative pressure cabin connection, provides negative pressure for negative pressure cabin；
The device for blackboard eraser is provided with vacuum chamber, dust-collecting cavity and bristle, and the vacuum chamber passes through the sweep-up pipe and negative pressure cabin
Connection constitutes dust suction circuit；The dust-collecting cavity is connect by the dust outlet tube with the dust mouth, and the dirt circuit out is constituted,
The bristle is arranged in the vacuum chamber and is communicated with the atmosphere around the opening of side；
The exhaust outlet is provided with filter device；
The dirt circuit out is provided with backward-wind preventing device.
Preferably, the dust collect plant has driving device, for driving dust collect plant along sliding bar.
Preferably, starting switch for the negative pressure device is arranged on the device for blackboard eraser.
Preferably, the sweep-up pipe and dust outlet tube are elastic tube.
Preferably, the dust storage device is detachable apparatus, to guarantee conveniently to topple over the chalk dust in dust storage device.
Preferably, the dust storage device is provided with outlet valve.
Preferably, there are two the device for blackboard eraser settings.
The present invention is time saving and energy saving when carrying out large area erasing, wipes in small area or carries out specific aim modification to mistake
When, it is with strong points.Easy to use and flexible of the present invention, dust collection capacity is strong, good dedusting effect, and the chalk dust that can be avoided sucking is secondary
It is scattered.
Detailed description of the invention
Scheme of installation Fig. 1 of the invention.
Dust collect plant cross-sectional view Fig. 2 of the invention.
The cross-sectional view of device for blackboard eraser Fig. 3 of the invention.
1- slide bar,
2- dust collect plant, 21- shell, 22- negative pressure device,
23- negative pressure cabin, 231- suction inlet, the dust mouth 232-, 233- exhaust outlet, 234- bevel structure, 235- disturbance ball
3- device for blackboard eraser, 31- dust-collecting cavity, 32-vacuum chambers, 33- bristle, 34- air suction opening, 35- idler wheel, 36- switch, 37- go out
Mouth valve,
4- sweep-up pipe, 5- dust outlet tube, 6- filter device, 7- backward-wind preventing device, 8- blackboard.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Referring to figs. 1 to Fig. 3, a kind of dust-removing blackboard eraser is present embodiments provided, as shown in Figure 1, the dust-removing blackboard eraser includes sliding
Bar 1, dust collect plant 2, blackboard eraser 3, sweep-up pipe 4 and dust outlet tube 5, the slide bar 1 is fixedly mounted on the top of blackboard 8, apart from black
Along 30cm on plate 8, the slide bar 1 is the stainless steel strip of section 0.5cm × 2cm, the long side and metope in the stainless steel strip section
It is arranged in parallel, longitudinally disposed groove is fixed on wall as track, stainless steel strip upside setting pendulous device on the stainless steel strip
Pulley is set on body, on the dust collect plant 2 and the grooved tracks cooperate, is slidably connected on slide bar 1,1 foot of slide bar
It is enough smooth, dust collect plant 2 can be made to be moved easily.Another embodiment of the invention is that edge is driven by motor in dust collect plant
Sliding bar.
As shown in Fig. 2, the dust collect plant 2 includes shell 21 and negative pressure device 22, negative pressure cabin is set inside shell 21
23, negative pressure cabin 23 is provided with suction inlet 231, dust mouth 232 and exhaust outlet 233, and inclined-plane 234, institute are additionally provided in negative pressure cabin 23
It states dust mouth 232 and is located at 234 bottom of inclined surface, backward-wind preventing device 7, the backward-wind preventing device are installed in the lower section of the dust mouth 232
For check (non-return) valve；In another embodiment, the backward-wind preventing device is a hyoplastron, when the hyoplastron normal state, in weight
It is in an open state under the action of power, when, there are when negative pressure, forming closed state under gas pressure in dust outlet tube road.Negative pressure cabin 23
Negative pressure device 22 is connected, the negative pressure device 22 in the present embodiment is vacuum pump, provides negative pressure for negative pressure cabin 23.In negative pressure cabin 23 also
It is provided with filter device 6, which is filter screen, and filter screen 6 is by the dust separation of inspiration and is trapped in negative pressure cabin 23,
Dust mouth 232 is slid into along inclined-plane.
As shown in figure 3, the device for blackboard eraser 3 is provided with vacuum chamber 32, dust-collecting cavity 31 and bristle 33, the dust-collecting cavity 31
With dust outlet valve 37, the outlet valve in the present embodiment is a corking with sealing device, can be scratched open, for pouring out storage
Chalk dust in dirt chamber 31 is provided with switch 36 on the device for blackboard eraser 3, for controlling the switch of negative pressure device；Vacuum chamber
Air suction opening 34 is arranged in 32 housing surfaces, and the bristle 33 is arranged around air suction opening 34.The vacuum chamber 32 passes through the sweep-up pipe 4
It is connect with the suction inlet 231 of negative pressure cabin 23, constitutes dust suction circuit；The dust-collecting cavity 31 passes through the dust outlet tube 5 and the dirt out
Mouth 232 connects, and constitutes the dirt circuit out, sweep-up pipe 4 and dust outlet tube 5 are elastic tube.
In use, first starting negative pressure device by lower switch 36, start the writing on erasing blackboard, dust collect plant 2 is in blackboard
It wipes and is moved under the drive of device 3 along slide bar 1.The chalk dust being rubbed off successively passes through vacuum chamber 32, sweep-up pipe 4 and suction inlet
231 enter in negative pressure cabin 23, and after the filtering of strainer 6, air is discharged the chalk dust being inhaled into from exhaust outlet 233, and powder is oblique along person
Face 234 slides into dust mouth 232, and inclined-plane 234 can guarantee that the chalk dust being inhaled into all collects in dust mouth 232, and check (non-return) valve 7 exists
It is opened under the action of powder gravity, powder is made to slide into dust-collecting cavity 31, using finishing, trip switch 36 along dust outlet tube 5
Negative pressure device is closed, the powder in dust-collecting cavity 31 is collected into processing or recycling.It is small when only needing to modify partial error
It is also very flexible and convenient when area is wiped.
In certain embodiments, disturbance ball 235 is additionally provided in the negative pressure cabin, the disturbance ball is lightweight sphere,
Its volume is greater than exhaust outlet or dust mouth diameter, can be hollow ocean spherical structure, is also possible to solid foam spherical structure,
In negative pressure device working condition, the air-flow of suction inlet 231 can cause the disturbance ball to beat back and forth in negative pressure cabin, generate
Shock and vibration dust can be promoted more smoothly to fall into dust outlet tube 5, moreover it is possible to effectively prevent dust outlet tube from blocking.
The present invention is separately positioned by vacuum chamber and dust-collecting cavity and check valve structure is arranged, and can be avoided the chalk dust two of sucking
It is secondary to be scattered.
The above is only present pre-ferred embodiments, is not intended to limit the scope of the present invention, therefore
Any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, still belong to
In the range of technical solution of the present invention.
Claims (7)
1. a kind of dust-removing blackboard eraser, which is characterized in that the dust-removing blackboard eraser includes slide bar, dust collect plant, device for blackboard eraser, suction
Dirt pipe, dust outlet tube；The dust collect plant is slidably connected on slide bar；
The dust collect plant includes shell and negative pressure device, and negative pressure cabin is arranged in the shell, and the negative pressure cabin setting suction inlet goes out
Dirt mouth and exhaust outlet, are provided with inclined surface in the negative pressure cabin, and the dust mouth is located at inclined surface bottom, the negative pressure device with
Negative pressure cabin connection, provides negative pressure for negative pressure cabin；
The device for blackboard eraser is provided with vacuum chamber, dust-collecting cavity and bristle, and the vacuum chamber passes through the sweep-up pipe and negative pressure cabin
Connection constitutes dust suction circuit；The dust-collecting cavity is connect by the dust outlet tube with the dust mouth, and the dirt circuit out is constituted,
The bristle is arranged in the vacuum chamber and is communicated with the atmosphere around the opening of side；
The exhaust outlet is provided with filter device；
The dirt circuit out is provided with backward-wind preventing device.
2. a kind of dust-removing blackboard eraser as described in claim 1, which is characterized in that the dust collect plant has driving device, uses
To drive dust collect plant along sliding bar.
3. a kind of dust-removing blackboard eraser as described in claim 1, which is characterized in that the setting that starts switch of the negative pressure device exists
On the device for blackboard eraser.
4. a kind of dust-removing blackboard eraser as described in claim 1, which is characterized in that the sweep-up pipe and dust outlet tube are elasticity
Pipe.
5. a kind of dust-removing blackboard eraser as described in claim 1, which is characterized in that the dust storage device is detachable apparatus, with
Guarantee conveniently to topple over the chalk dust in dust storage device.
6. a kind of dust-removing blackboard eraser as described in claim 1, which is characterized in that outlet valve is arranged in the dust storage device.
7. a kind of dust-removing blackboard eraser as described in claim 1 ~ 6 any one, which is characterized in that the device for blackboard eraser setting
There are two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910379070.5A CN110053400A (en) | 2019-05-08 | 2019-05-08 | A kind of dust-removing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910379070.5A CN110053400A (en) | 2019-05-08 | 2019-05-08 | A kind of dust-removing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110053400A true CN110053400A (en) | 2019-07-26 |
Family
ID=67322534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910379070.5A Pending CN110053400A (en) | 2019-05-08 | 2019-05-08 | A kind of dust-removing blackboard eraser |
Country Status (1)
| Country | Link |
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| CN (1) | CN110053400A (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2499243Y (en) * | 2001-09-18 | 2002-07-10 | 任建国 | New dust collection blackboard brush for teaching |
| CN2573266Y (en) * | 2002-09-28 | 2003-09-17 | 李家亮 | Rotary auto-erasing dualpurpose blackboard |
| CN2594046Y (en) * | 2002-12-25 | 2003-12-24 | 王义智 | Blackboard eraser |
| CN200970983Y (en) * | 2006-06-26 | 2007-11-07 | 上海工商信息学校 | Environment protection dust absorption eraser |
| CN201154635Y (en) * | 2007-12-25 | 2008-11-26 | 林德文 | Dust absorption blackboard eraser |
| JP2009274227A (en) * | 2008-05-12 | 2009-11-26 | Kohei Hayashi | Blackboard eraser cleaning device |
| CN201712340U (en) * | 2010-05-08 | 2011-01-19 | 张瑶 | Improved blackboard |
| CN201880681U (en) * | 2010-09-03 | 2011-06-29 | 珠海彩珠实业有限公司 | Packaging screen used for screening low melting point glass powder |
| US20110162163A1 (en) * | 2010-01-07 | 2011-07-07 | National Central University | Apparatus Erasing Blackboard through Areas |
| CN103171336A (en) * | 2013-03-23 | 2013-06-26 | 殷甜 | Dust-free blackboard |
| CN204107833U (en) * | 2014-09-03 | 2015-01-21 | 杭州群利明胶化工有限公司 | A kind of Anti-blocking structure of spin vibration sieve |
| CN204605325U (en) * | 2014-12-11 | 2015-09-02 | 丁宇航 | A kind of dust-absorbing blackboard |
| CN204687679U (en) * | 2015-06-19 | 2015-10-07 | 哈尔滨理工大学 | A kind of Japanese Teaching is with can the chalkboard eraser of sucking chalk powder automatically |
| CN105856914A (en) * | 2016-04-12 | 2016-08-17 | 宿州学院 | Blackboard assembly convenient for angle adjustment |
| CN107029487A (en) * | 2017-05-27 | 2017-08-11 | 泉州市佳能机械制造有限公司 | One kind shake cleaner |
| CN206937916U (en) * | 2017-04-24 | 2018-01-30 | 东莞市奥能工程塑料有限公司 | A kind of glass side drawing-in device |
| CN208576320U (en) * | 2018-06-14 | 2019-03-05 | 长沙职业技术学院 | A kind of college English Teaching blackboard with dust-absorbing function |
-
2019
- 2019-05-08 CN CN201910379070.5A patent/CN110053400A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2499243Y (en) * | 2001-09-18 | 2002-07-10 | 任建国 | New dust collection blackboard brush for teaching |
| CN2573266Y (en) * | 2002-09-28 | 2003-09-17 | 李家亮 | Rotary auto-erasing dualpurpose blackboard |
| CN2594046Y (en) * | 2002-12-25 | 2003-12-24 | 王义智 | Blackboard eraser |
| CN200970983Y (en) * | 2006-06-26 | 2007-11-07 | 上海工商信息学校 | Environment protection dust absorption eraser |
| CN201154635Y (en) * | 2007-12-25 | 2008-11-26 | 林德文 | Dust absorption blackboard eraser |
| JP2009274227A (en) * | 2008-05-12 | 2009-11-26 | Kohei Hayashi | Blackboard eraser cleaning device |
| US20110162163A1 (en) * | 2010-01-07 | 2011-07-07 | National Central University | Apparatus Erasing Blackboard through Areas |
| CN201712340U (en) * | 2010-05-08 | 2011-01-19 | 张瑶 | Improved blackboard |
| CN201880681U (en) * | 2010-09-03 | 2011-06-29 | 珠海彩珠实业有限公司 | Packaging screen used for screening low melting point glass powder |
| CN103171336A (en) * | 2013-03-23 | 2013-06-26 | 殷甜 | Dust-free blackboard |
| CN204107833U (en) * | 2014-09-03 | 2015-01-21 | 杭州群利明胶化工有限公司 | A kind of Anti-blocking structure of spin vibration sieve |
| CN204605325U (en) * | 2014-12-11 | 2015-09-02 | 丁宇航 | A kind of dust-absorbing blackboard |
| CN204687679U (en) * | 2015-06-19 | 2015-10-07 | 哈尔滨理工大学 | A kind of Japanese Teaching is with can the chalkboard eraser of sucking chalk powder automatically |
| CN105856914A (en) * | 2016-04-12 | 2016-08-17 | 宿州学院 | Blackboard assembly convenient for angle adjustment |
| CN206937916U (en) * | 2017-04-24 | 2018-01-30 | 东莞市奥能工程塑料有限公司 | A kind of glass side drawing-in device |
| CN107029487A (en) * | 2017-05-27 | 2017-08-11 | 泉州市佳能机械制造有限公司 | One kind shake cleaner |
| CN208576320U (en) * | 2018-06-14 | 2019-03-05 | 长沙职业技术学院 | A kind of college English Teaching blackboard with dust-absorbing function |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190726 |