CN202879064U - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN202879064U CN202879064U CN 201220510481 CN201220510481U CN202879064U CN 202879064 U CN202879064 U CN 202879064U CN 201220510481 CN201220510481 CN 201220510481 CN 201220510481 U CN201220510481 U CN 201220510481U CN 202879064 U CN202879064 U CN 202879064U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- blackboard eraser
- brush bar
- slide rail
- utility
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a blackboard eraser which comprises sliding rails which are arranged at the upper end of the blackboard eraser and the lower end of the blackboard eraser. Idler wheels are arranged in the sliding rails. A brushing strip is connected with the idler wheels which are arranged on the sliding rails. The bottom face of the brushing strip is provided with brushing hairs. The brushing strip is electrically connected with a motor. Due to the adoption of the sliding rails, the idler wheels, the brushing strip and the motor which drives the brushing strip to work, the blackboard eraser achieves automation of an automatically wiped blackboard and has the advantages of being simple in structure, time-saving and labor-saving.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically a kind of blackboard eraser.
Background technology
Current, the blackboard eraser great variety of goods of called optical imaging, pattern are various, have seen hairbrush and felt type from cleaning piece; From structure manual and electronic difference is arranged.At present, most schools still uses the letter written with chalk on the ordinary blackboard eraser erasing blackboard, relatively requires great effort in erase process, when particularly will wipe a monoblock blackboard, hard especially, and also be not easy to clip at the letter written with chalk of blackboard eminence, use inconvenience.In use, also produce easily dust.For the shortcoming of above-mentioned existence, the blackboard eraser after the improvement is arranged also in the prior art.Be that 201020655323.1 Chinese utility model patent discloses a kind of simple blackboard eraser such as number of patent application, comprise being arranged on the up and down slide rail at two ends of blackboard, be provided with roller in the slide rail, the brush bar is connected with roller on being arranged on slide rail, the bottom surface of brush bar is provided with bristle, and the back side of brush bar is provided with handle.The length of this brush bar is suitable with the width of blackboard, and the handle that grips on the brush bar can be wiped along blackboard slip brush bar.This blackboard eraser has solved wipes monoblock blackboard hard problem, and erasing speed also increases simultaneously.But the handle that this kind blackboard eraser needs the people to grip on the brush bar swipes, and the people is more painstaking in pulling handle process, and automaticity is not high.
The utility model content
For solving above-mentioned deficiency, it is convenient and swift that technical problem to be solved in the utility model provides a kind of blackboard wiping, the automation blackboard eraser that need not take efforts.
The utility model is achieved through the following technical solutions:
Blackboard eraser comprises being arranged on the up and down slide rail at two ends of blackboard, is provided with roller in the slide rail, and the brush bar is connected with roller on being arranged on slide rail, and the bottom surface of brushing bar is provided with bristle, and described brush bar is connected with an electric electromechanics.
In the such scheme, when preventing blackboard wiping, dust from flying also is provided with an ash collection slot at the blackboard lower end; Be convenient control machine operation, place, described ash collection slot top can be provided with the switch of a control motor.
In the such scheme, when preventing blackboard wiping, the brush bar is the malfunctioning place of running out of beyond the slide rail when slide rail moves.Cause the phenomenon of blackboard eraser cisco unity malfunction.Outside blackboard, an end relative with the position of brush bar preferably is fixed with a fixed strip.
The beneficial effects of the utility model are: the utility model is provided with slide rail, roller, brush bar, and the motor of drive brush bar work, has realized the automation of Automatic erasing blackboard, and is time saving and energy saving.Lower end at blackboard also is provided with ash collection slot, has effectively prevented harm and the pollution of chalk dust to surrounding population and environment.Have simple in structure, time saving and energy saving characteristics.
Description of drawings
The structural representation of Fig. 1 the utility model blackboard eraser.
Number in the figure is: 1, slide rail; 2, brush bar; 3, bristle; 4, roller; 5, switch; 6, blackboard; 7, ash collection slot; 8, motor; 9, fixed strip.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described.Should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figure 1, blackboard eraser comprises the slide rail 1 that is arranged on blackboard two ends about in the of 6, is provided with roller 4 in the slide rail 1, and brush bar 2 is connected with roller 4 on being arranged on slide rail 1, and the bottom surface of brushing bar 2 is provided with bristle 3, and described brush bar 2 is electrically connected with a motor 8.Also be provided with an ash collection slot 7 at blackboard 6 lower ends, place, ash collection slot 7 tops is provided with the switch 5 of a control motor.Outside blackboard, an end relative with the position of brush bar 2 is fixed with a fixed strip 9.In the present embodiment, the width of the length of brush bar 2, fixed strip 9 and blackboard 6 is suitable.
The utility model is at first pressed the switch 5 at place, ash collection slot 7 tops when work, motor 8 work this moment, and drive brush bar 2 is mobile at slide rail 1 with roller 4, then brushes 2 pairs of blackboards of bar 6 and carries out wiping.A small amount of clear water is housed in the ash collection slot 7, and brush bar 2 is when blackboard wiping 6, and chalk dust is absorbed by ash collection slot 7 in the process of dropping.When brush bar 2 is finished blackboard wiping 6 work, press again switch 5, motor 8 shuts down, and brush bar 2 is got back to initial position.It is time saving and energy saving that the utility model electric eraser has, dustproof characteristics.
Claims (3)
1. blackboard eraser, comprise and be arranged on the up and down slide rail at two ends (1) of blackboard (6), be provided with roller (4) in the slide rail (1), brush bar (2) is connected with roller (4) on being arranged on slide rail (1), the bottom surface of brush bar (2) is provided with bristle (3), and it is characterized in that: described brush bar (2) is electrically connected with a motor (8).
2. blackboard eraser according to claim 1 is characterized in that: also be provided with an ash collection slot (7) at blackboard (6) lower end, locate to be provided with the switch (5) of a control motor above the ash collection slot (7).
3. blackboard eraser according to claim 1 is characterized in that: outside blackboard (6), an end relative with the position of brush bar (2) is fixed with a fixed strip (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510481 CN202879064U (en) | 2012-09-29 | 2012-09-29 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510481 CN202879064U (en) | 2012-09-29 | 2012-09-29 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202879064U true CN202879064U (en) | 2013-04-17 |
Family
ID=48070524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510481 Expired - Fee Related CN202879064U (en) | 2012-09-29 | 2012-09-29 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202879064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707699A (en) * | 2012-09-29 | 2014-04-09 | 李信 | Chalkboard eraser |
-
2012
- 2012-09-29 CN CN 201220510481 patent/CN202879064U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707699A (en) * | 2012-09-29 | 2014-04-09 | 李信 | Chalkboard eraser |
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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: 20130417 Termination date: 20130929 |