CN201235691Y - Electric blackboard eraser - Google Patents
Electric blackboard eraser Download PDFInfo
- Publication number
- CN201235691Y CN201235691Y CNU2008201037376U CN200820103737U CN201235691Y CN 201235691 Y CN201235691 Y CN 201235691Y CN U2008201037376 U CNU2008201037376 U CN U2008201037376U CN 200820103737 U CN200820103737 U CN 200820103737U CN 201235691 Y CN201235691 Y CN 201235691Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- eraser
- chalk
- elevating screw
- drive
- 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.)
- Expired - Fee Related
Links
- 230000003028 elevating effect Effects 0.000 claims abstract description 18
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract 1
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses an electric blackboard eraser, including motor and elevating screw, the elevating screw of saying is two and vertical the installing in the blackboard both sides respectively, two elevating screw's lower extreme is setting up the drive wheel respectively, the drive wheel is rotatory by motor drive, horizontal installation between two elevating screw one with blackboard length assorted chalk brush, the blackboard face is being hugged closely to the chalk brush, the inside hollow structure that is of chalk brush, the equipartition is setting up the through-hole on the chalk brush, the one end of chalk brush is linked together through an breathing pipe and an air exhauster, on the blackboard, the lower part is setting up the chalk brush respectively on, lower motion control switch. The utility model discloses a blackboard is cleaned to machinery, and the intensity of labour that not only can alleviate people more can effectively clear away the chalk dust and pollute, guarantees that teachers and students are healthy.
Description
Technical field
The utility model relates to a kind of electric blackboard eraser.
Background technology
In all kinds of schools of China, teacher also generally uses traditional blackboard eraser blackboard wiping when carrying out traditional instruction, particularly carrying out large lectures when giving lessons, blackboard panel is all very big, writing words is a lot, need take a long time so on the one hand and carry out blackboard wiping, the chalk dust that produces during blackboard wiping is very big on the other hand, and it is healthy to have a strong impact on teachers and students.
The utility model content
The purpose of this utility model is to provide a kind of electric blackboard eraser, and it is simple in structure, is easy to make, and blackboard wiping is eliminated chalk ash pollution effectively, and is easy to use.
The purpose of this utility model is achieved in that a kind of electric blackboard eraser, comprise motor and elevating screw, said elevating screw is two and vertically is installed in the blackboard both sides respectively, the lower end of two elevating screws is being provided with drive respectively, drive is rotated by Motor Drive, level is installed with an eraser that is complementary with blackboard length between two elevating screws, eraser is close to blackboard panel, eraser inside is hollow structure, the uniform through hole that is being provided with on the eraser, one end of eraser is connected with an air exhauster by an air intake duct, on blackboard, the bottom is being provided with on the eraser respectively, following motion control switch.
When the utility model uses, connect motor switch, order about the upper and lower motion of two elevating screws drive erasers by motor and carry out blackboard wiping, simultaneously, the chalk dust that produces is entered wherein by the through hole on the eraser under the suction of air exhauster, by air exhauster the chalk dust that produces is adsorbed.Under the effect of upper and lower motion control switch, thereby can effectively wipe letter written with chalk on the blackboard so that eraser carries out upper and lower reciprocating motion.The utility model is simple in structure, is easy to make, and carries out blackboard wiping by machinery, and the labour intensity that not only can alleviate people more can effectively be removed chalk ash pollution, guarantees that teachers and students are healthy.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Fig. 2 is the A-A amplification profile structural representation among Fig. 1.
The specific embodiment
A kind of electric blackboard eraser as shown in Figure 1 and Figure 2, comprises motor 9 and elevating screw 5, and is electronic and 9 be installed in blackboard 2 bottoms.Said elevating screw 5 is two and vertically be installed in blackboard 2 both sides respectively, and the lower end of two elevating screws 5 is being provided with drive 8 respectively, and said drive 8 be sprocket wheel or belt pulley, and drive 8 is driven by motor 9 and rotates.Level is installed with an eraser 4 that is complementary with blackboard 2 length between two elevating screws 5, and eraser 4 is close to blackboard panel.Bristle or felt are being set on the surface of eraser 4.Eraser 4 inside are hollow structure, and said eraser 4 cross sections are rectangular oval or semicircle.The uniform through hole 3 that is being provided with on the eraser 4, an end of eraser 4 is connected with an air exhauster 7 by an air intake duct 6.The upper and lower motion control switch 1 of eraser is being set respectively in the upper and lower part of blackboard 2.Said upper and lower motion control switch 1 is near switch or travel switch.
When the utility model uses, connect motor 9 switches, order about the 4 upper and lower motions of two elevating screws, 5 drive erasers by motor 9 and carry out blackboard wiping, simultaneously, the chalk dust that produces is being entered wherein by the through hole on the eraser 43 under the suction of air exhauster 7, is adsorbed by the chalk dust of 7 pairs of generations of air exhauster.Under the effect of upper and lower motion control switch 1, thereby can effectively wipe letter written with chalk on the blackboard 2 so that eraser 4 carries out upper and lower reciprocating motion.
Claims (4)
1, a kind of electric blackboard eraser, comprise motor (9) and elevating screw (5), it is characterized in that: said elevating screw (5) is two and vertically is installed in blackboard (2) both sides respectively, the lower end of two elevating screws (5) is being provided with drive (8) respectively, drive (8) drives rotation by motor (9), level is installed with an eraser (4) that is complementary with blackboard (2) length between two elevating screws (5), eraser (4) is close to blackboard panel, eraser (4) inside is hollow structure, eraser (4) is gone up the uniform through hole (3) that is being provided with, one end of eraser (4) is connected with an air exhauster (7) by an air intake duct (6), on blackboard (2), the bottom is being provided with on the eraser respectively, following motion control switch (1).
2, electric blackboard eraser according to claim 1 is characterized in that: said eraser (4) cross section is rectangular oval or semicircle.
3, electric blackboard eraser according to claim 1 is characterized in that: said upper and lower motion control switch (1) is near switch or travel switch.
4, electric blackboard eraser according to claim 1 is characterized in that: said drive (8) is sprocket wheel or belt pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201037376U CN201235691Y (en) | 2008-06-27 | 2008-06-27 | Electric blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201037376U CN201235691Y (en) | 2008-06-27 | 2008-06-27 | Electric blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235691Y true CN201235691Y (en) | 2009-05-13 |
Family
ID=40648430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201037376U Expired - Fee Related CN201235691Y (en) | 2008-06-27 | 2008-06-27 | Electric blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235691Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707700A (en) * | 2013-12-18 | 2014-04-09 | 广州铁路职业技术学院 | Multifunctional automatic blackboard eraser |
| CN106346984A (en) * | 2016-09-12 | 2017-01-25 | 芜湖能盟信息技术有限公司 | Automatic erased blackboard |
| CN106541757A (en) * | 2016-10-16 | 2017-03-29 | 林姝霓 | A kind of teaching of senior high school blackboard automatic flushing device |
| CN107031240A (en) * | 2017-05-24 | 2017-08-11 | 杨光明 | Multifunctional self-cleaned blackboard |
| CN108515791A (en) * | 2018-04-17 | 2018-09-11 | 洛阳理工学院 | A kind of literature teaching contrast learning device |
| CN110254082A (en) * | 2019-04-28 | 2019-09-20 | 佛山市飞瑜文具有限公司 | A kind of dustproof blackboard |
-
2008
- 2008-06-27 CN CNU2008201037376U patent/CN201235691Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707700A (en) * | 2013-12-18 | 2014-04-09 | 广州铁路职业技术学院 | Multifunctional automatic blackboard eraser |
| CN103707700B (en) * | 2013-12-18 | 2016-04-06 | 广州铁路职业技术学院 | Multifunctional automatic blackboard eraser |
| CN106346984A (en) * | 2016-09-12 | 2017-01-25 | 芜湖能盟信息技术有限公司 | Automatic erased blackboard |
| CN106541757A (en) * | 2016-10-16 | 2017-03-29 | 林姝霓 | A kind of teaching of senior high school blackboard automatic flushing device |
| CN106541757B (en) * | 2016-10-16 | 2017-12-26 | 新昌雪莲花轴承有限公司 | A kind of teaching of senior high school blackboard automatic flushing device |
| CN107031240A (en) * | 2017-05-24 | 2017-08-11 | 杨光明 | Multifunctional self-cleaned blackboard |
| CN107031240B (en) * | 2017-05-24 | 2018-05-22 | 杨光明 | Multifunctional self-cleaned blackboard |
| CN108515791A (en) * | 2018-04-17 | 2018-09-11 | 洛阳理工学院 | A kind of literature teaching contrast learning device |
| CN110254082A (en) * | 2019-04-28 | 2019-09-20 | 佛山市飞瑜文具有限公司 | A kind of dustproof blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 |