CN104742624A - Dust-free blackboard eraser - Google Patents
Dust-free blackboard eraser Download PDFInfo
- Publication number
- CN104742624A CN104742624A CN201510171185.7A CN201510171185A CN104742624A CN 104742624 A CN104742624 A CN 104742624A CN 201510171185 A CN201510171185 A CN 201510171185A CN 104742624 A CN104742624 A CN 104742624A
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- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- negative pressure
- dust collection
- negative
- 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.)
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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
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Abstract
The invention discloses a dust-free blackboard eraser. The dust-free blackboard eraser comprises a blackboard eraser body, a dust collection system and a negative pressure apparatus, wherein the blackboard eraser body comprises a hairbrush and a dust guide cap; the dust guide cap is a cavity with an opening on one end, one end of the hairbrush is suspended in the cavity while the other is extended out of the opening, and one end of the dust guide cap is equipped with a pipeline joint with one negative-pressure switch valve; the dust collection system is connected with the pipeline joint through the dust collection pipeline; the dust collection system comprises at least one dust collection tank, the dust collection pipeline is equipped with at least one branch pipe on which faucets matching with the pipeline joint are arranged, and each branch pipe is correspondingly equipped with a blackboard eraser body; the negative-pressure device comprises a negative-pressure machine which is connected with the dust collection system through pipelines. The dust-free blackboard eraser is simple in structure and easy to maintain and has less maintenance points, and the dust collection pipeline can be connected with blackboard erasers of multiple classrooms. According to the blackboard eraser, polluted air caused by flying dust is reduced, thereby effectively protecting the health of teachers and students and obviously reducing the occurrence rate of the teacher's occupational disease; besides the dust-free blackboard eraser is practical and low in cost.
Description
Technical field
The present invention relates to a kind of blackboard eraser, particularly a kind of dust-free black board eraser.
Background technology
That to widely use most be also the most traditional teaching method by chalk teaching of handwriting on blackboard, but it also also exists some problems easily bringing simultaneously, wherein maximum problem is exactly while wiping letter written with chalk, chalk dust can fly upward everywhere, has had a strong impact on the healthy of Faculty and Students.
Now commercially there are some can collect the blackboard eraser of chalk dust, as the blackboard eraser with deduster, but such blackboard eraser comes with some shortcomings, certain noise is had during work, vacuum effect is not obvious, and this kind of blackboard eraser is generally that a dust pelletizing system answered by one piece of blackboard, cost is comparatively large, safeguards comparatively loaded down with trivial details; Also have some in addition from the dust-removing blackboard eraser of charged pool, but this type of blackboard eraser uses battery not environmentally and general structure more complicated on the one hand; On the other hand, the capacity of battery is lower, even in use because capacitance affects dust removing effects not, uses a period of time just to need to change, which adds cost.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, easy to use, fly upward without chalk dust, solve noise high, trouble point is many, the dust-free black board eraser of DeGrain.
To achieve these goals, present invention employs following technical scheme:
A kind of dust-free black board eraser, comprise blackboard eraser body, storage dirt system and negative pressure device, described blackboard eraser body comprises hairbrush and leads ash cover, describedly lead ash cover for one end and be provided with the cavity of opening, described hairbrush one end is unsettled to be placed in described cavity, the other end stretches out from this opening, described in lead ash cover one end be provided with the pipe joint of a band negative pressure switch valve;
Described storage dirt system is connected with described pipe joint by dust collecting duct, described dust pelletizing system comprises at least one dust storage container, described dust collecting duct is provided with at least one arm, and each arm is provided with the socket with described pipe joint adaptation, and each arm correspondence is provided with a described blackboard eraser body;
Described negative pressure device comprises Negative pressure machine, and described Negative pressure machine is connected by pipeline with described storage dirt system.
Preferably, described dust pelletizing system is provided with two dust storage containers of mutually connecting.
Preferably, described dust storage container is water tank with strainer or electrostatic precipitation tank or centrifugal tank.
Preferably, described negative pressure device comprises Negative pressure machine by placed in series and negative-pressure cup, and described negative-pressure cup is placed between described Negative pressure machine and described storage dirt system.
Further, described dust collecting duct is spiral shell shape flexible pipe.
Negative pressure machine operationally, first starts to and produces certain negative pressure by the present invention, then starts negative pressure switch valve, air sucks from the aperture of hairbrush, dust absorbing enters to lead in the cavity of ash cover, and after blackboard-cleaning is clean, dust enters dust collecting duct again by the cavity of leading ash cover, finally enter dust storage container, effectively prevent powder from dispersing, and structure of the present invention is simple, and easy care, maintenance point is few, and between how dust collecting duct can connect, classroom blackboard is wiped.The present invention reduces dust to disperse and contaminated air, the health of effective protection teachers and students, the more outstanding occupational disease reducing teacher sends out rate, practical, cheap.
Accompanying drawing explanation
Fig. 1 is the structure chart of embodiment one;
Fig. 2 is the structure chart of blackboard eraser body;
Fig. 3 is the structure chart of embodiment two.
Detailed description of the invention
Now by reference to the accompanying drawings, the present invention is described in detail.
Embodiment one
With reference to accompanying drawing 1 and accompanying drawing 2, a kind of dust-free black board eraser, comprise blackboard eraser body 1, storage dirt system and negative pressure device, blackboard eraser body 1 comprises hairbrush 11 and leads ash cover 12, wherein hairbrush 11 can select good permeability, adsorption function strong and wear-resisting durable horsehair is made, leading ash cover 12 for one end is provided with the cavity of opening, lead ash cover 12 1 aspects and can collect dust, user-friendly on the other hand, hairbrush 11 one end is unsettled to be placed in cavity, the other end stretches out from this opening, and the one end of leading ash cover 12 is provided with the pipe joint 122 of a band negative pressure switch valve 121; Storage dirt system is spiral shell shape flexible pipe by dust collecting duct 3(dust collecting duct 3) be connected with pipe joint 122, dust collecting duct 3 is provided with two arms 31, each arm 31 is provided with the socket 32 with pipe joint 122 adaptation, each arm 31 correspondence is provided with a blackboard eraser body 1, like this, two arms 31 can correspondingly use in two classrooms, thus decrease fault generation point, are convenient to safeguard; Dust pelletizing system is provided with 1 dust storage container 21, and this dust storage container 21 is water tank with strainer, and negative pressure device comprises Negative pressure machine 4, and Negative pressure machine 4 is connected by pipeline with dust storage container 21.
Embodiment two
With reference to accompanying drawing 2 and accompanying drawing 3, a kind of dust-free black board eraser, comprise blackboard eraser body 1, storage dirt system and negative pressure device, blackboard eraser body 1 comprises hairbrush 11 and leads ash cover 12, leading ash cover 12 for one end is provided with the cavity of opening, hairbrush 11 one end is unsettled to be placed in cavity, and the other end stretches out from this opening, and the one end of leading ash cover 12 is provided with the pipe joint 122 of a band negative pressure switch valve 121; Storage dirt system is spiral shell shape flexible pipe by dust collecting duct 3(dust collecting duct 3) be connected with pipe joint 122, dust collecting duct 3 is provided with three arms 31, each arm 31 is provided with the socket 32 with pipe joint 122 adaptation, each arm 31 correspondence is provided with a blackboard eraser body 1, like this, three arms 31 can correspondingly use in three classrooms; Dust pelletizing system is provided with two the first dust storage container 211 and the second dedusting tanks 212 of mutually connecting, wherein, first dust storage container 211 is water tank with strainer, second dedusting tank 212 is centrifugal tank, negative pressure device comprises Negative pressure machine 4 by placed in series and negative-pressure cup 5, negative-pressure cup 5 is placed between Negative pressure machine 4 and the second dedusting tank 212, second dedusting tank 212 is connected by pipeline with negative-pressure cup 5, increasing negative-pressure cup 5 in the present embodiment mainly in order to increase the negative pressure of whole blackboard eraser, improving the dust-absorbing function of dust-free black board eraser.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (5)
1. a dust-free black board eraser, comprise blackboard eraser body, storage dirt system and negative pressure device, it is characterized in that, described blackboard eraser body comprises hairbrush and leads ash cover, describedly lead ash cover for one end and be provided with the cavity of opening, described hairbrush one end is unsettled to be placed in described cavity, and the other end stretches out from this opening, described in lead ash cover one end be provided with the pipe joint of a band negative pressure switch valve;
Described storage dirt system is connected with described pipe joint by dust collecting duct, described dust pelletizing system comprises at least one dust storage container, described dust collecting duct is provided with at least one arm, and each arm is provided with the socket with described pipe joint adaptation, and each arm correspondence is provided with a described blackboard eraser body;
Described negative pressure device comprises Negative pressure machine, and described Negative pressure machine is connected by pipeline with described storage dirt system.
2. a kind of dust-free black board eraser according to claim 1, is characterized in that, described dust pelletizing system is provided with two dust storage containers of mutually connecting.
3. a kind of dust-free black board eraser according to claim 2, is characterized in that, described dust storage container is water tank with strainer or electrostatic precipitation tank or centrifugal tank.
4. a kind of dust-free black board eraser according to Claims 2 or 3, is characterized in that, described negative pressure device comprises Negative pressure machine by placed in series and negative-pressure cup, and described negative-pressure cup is placed between described Negative pressure machine and described storage dirt system.
5. a kind of dust-free black board eraser according to claim 4, is characterized in that, described dust collecting duct is spiral shell shape flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171185.7A CN104742624A (en) | 2015-04-13 | 2015-04-13 | Dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171185.7A CN104742624A (en) | 2015-04-13 | 2015-04-13 | Dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104742624A true CN104742624A (en) | 2015-07-01 |
Family
ID=53583112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510171185.7A Pending CN104742624A (en) | 2015-04-13 | 2015-04-13 | Dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104742624A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394085A (en) * | 2016-12-02 | 2017-02-15 | 辛顺强 | Blackboard erasing and dust removing device for teaching building |
| CN113620481A (en) * | 2021-10-14 | 2021-11-09 | 江苏江昕轮胎有限公司 | Circulating water system's optimization structure in rubber tire production |
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| CN103847380A (en) * | 2012-11-30 | 2014-06-11 | 李明精 | Teaching chalk dust collecting system |
| CN103963521A (en) * | 2014-01-01 | 2014-08-06 | 梅有智 | Dust suction device for dust-suction blackboard eraser |
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| CN104044389A (en) * | 2014-07-09 | 2014-09-17 | 安徽康成工业产品设计有限公司 | Blackboard eraser capable of sucking dust synchronously |
| CN203937412U (en) * | 2014-06-04 | 2014-11-12 | 张荣号 | A kind of environment-friendly dustless blackboard eraser |
| CN204309481U (en) * | 2014-12-05 | 2015-05-06 | 苏州君杜机电科技有限公司 | Blackboard is with taking out dirt system |
| CN204659305U (en) * | 2015-04-13 | 2015-09-23 | 石昌远 | A kind of dust-free black board eraser |
-
2015
- 2015-04-13 CN CN201510171185.7A patent/CN104742624A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06239096A (en) * | 1993-02-15 | 1994-08-30 | Hitachi Ltd | Chalk dust removal device for blackboard |
| JP2001039090A (en) * | 1999-07-29 | 2001-02-13 | Servo Technos:Kk | Erasing device for board |
| CN2408860Y (en) * | 2000-02-17 | 2000-12-06 | 万梦奇 | Chinese medicine negative pressure therapeutic apparatus |
| CN2570052Y (en) * | 2002-09-16 | 2003-09-03 | 王富 | Blackboard eraser |
| CN2666691Y (en) * | 2003-12-29 | 2004-12-29 | 崔希林 | Blackboard eraser with means for absorbing the chalk dust |
| CN1820967A (en) * | 2005-02-17 | 2006-08-23 | 杨长征 | Blackboard eraser |
| CN1883963A (en) * | 2005-06-22 | 2006-12-27 | 李培钟 | Vacuum dust collector for erasing blackboard and method therefor |
| CN201201454Y (en) * | 2008-06-29 | 2009-03-04 | 俞健 | Negative pressure absorbent blackboard eraser |
| CN101367309A (en) * | 2008-10-10 | 2009-02-18 | 范晓晨 | Negative-pressure dust-less blackboard |
| CN201350777Y (en) * | 2009-02-05 | 2009-11-25 | 曹鹤飞 | Dust-collecting blackboard eraser |
| CN202357741U (en) * | 2011-11-17 | 2012-08-01 | 李曌 | Dust sucking blackboard eraser |
| CN202557129U (en) * | 2012-03-25 | 2012-11-28 | 崔玉欣 | Automatic dust-collecting blackboard eraser |
| CN103847380A (en) * | 2012-11-30 | 2014-06-11 | 李明精 | Teaching chalk dust collecting system |
| CN203170675U (en) * | 2013-01-19 | 2013-09-04 | 江苏森泽环保工程科技有限公司 | Dust quick processing device with multiple suction ports |
| CN103963521A (en) * | 2014-01-01 | 2014-08-06 | 梅有智 | Dust suction device for dust-suction blackboard eraser |
| CN203805590U (en) * | 2014-04-30 | 2014-09-03 | 李志杰 | Multifunctional blackboard wiping dust protector |
| CN203937412U (en) * | 2014-06-04 | 2014-11-12 | 张荣号 | A kind of environment-friendly dustless blackboard eraser |
| CN104044389A (en) * | 2014-07-09 | 2014-09-17 | 安徽康成工业产品设计有限公司 | Blackboard eraser capable of sucking dust synchronously |
| CN204309481U (en) * | 2014-12-05 | 2015-05-06 | 苏州君杜机电科技有限公司 | Blackboard is with taking out dirt system |
| CN204659305U (en) * | 2015-04-13 | 2015-09-23 | 石昌远 | A kind of dust-free black board eraser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106394085A (en) * | 2016-12-02 | 2017-02-15 | 辛顺强 | Blackboard erasing and dust removing device for teaching building |
| CN113620481A (en) * | 2021-10-14 | 2021-11-09 | 江苏江昕轮胎有限公司 | Circulating water system's optimization structure in rubber tire production |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150701 |