CN2719603Y - Circulating self-erasing dust-proof blackboard - Google Patents
Circulating self-erasing dust-proof blackboard Download PDFInfo
- Publication number
- CN2719603Y CN2719603Y CN 200420052506 CN200420052506U CN2719603Y CN 2719603 Y CN2719603 Y CN 2719603Y CN 200420052506 CN200420052506 CN 200420052506 CN 200420052506 U CN200420052506 U CN 200420052506U CN 2719603 Y CN2719603 Y CN 2719603Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- wall
- support
- rotary drum
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a circulating self-erasing dust-proof blackboard, comprising an upper rotary drum and a lower rotary drum which are arranged on the wall in a horizontal direction. Two rotary drums are provided with closed belt type blackboard surfaces and a supporting board is provided between the blackboard surfaces. A surface closedly contacting the rear side of the blackboard surfaces is provided with a horizontal long-bar shape blackboard eraser whose outer part is provided with a dust-proof cover. The lower part of the dust-proof cover is provided with a dust-collecting box and the installation shaft of the lower rotary drum is provided with a hand crank. When the blackboard surfaces are turned into a back side, the blackboard eraser can automatically erase the writing, so the utility model has easy use and the dust can not fly around to guarantee the health of teachers and students.
Description
Affiliated technical field
The utility model relates to didactic works and writes the blackboard field, particularly relates to a kind of circulation self-erasing type dustproof blackboard.
Background technology
At present, the classroom is a fixed form mostly with blackboard, adopts traditional blackboard eraser when erasing the board, and dust from flying is promptly inconvenient, unhygienic again, has a strong impact on teachers and students' health.Though electric dust absorption blackboard eraser once once occurring, and, be easy to damage, thereby can not promote because cost is too high.And the blackboard height that has is too high, and individual short teacher writes on top and has any problem, and uses inconvenience.
Summary of the invention
The purpose of this utility model is exactly at the deficiencies in the prior art, and a kind of circulation self-erasing type dustproof blackboard is provided, promptly can automatic blackboard cleaning, can prevent dust from flying again.
For achieving the above object, the utility model is by the following technical solutions: it comprises last cylinder and the bottom roll that is installed in the horizontal direction on the wall by support, closed flexible belt blackboard surface is housed on last cylinder and bottom roll, between the two sides, front and back of blackboard surface, have by support and be fixed on flat support plate on the wall, be adjacent to the blackboard surface rear side surface have by support be fixed on the wall level to the strip blackboard eraser, dust cover is equipped with in the outside of blackboard eraser, dust-collecting box is equipped with in the dust cover below, on the installation shaft of bottom roll crank is housed.
Shake crank, facing up of flexible belt blackboard surface of the present utility model is mobile, and blackboard surface is fully used, and individual short teacher can write at random height; When blackboard surface forwarded the back side to, blackboard eraser can be automatically with handwriting erasing, and was easy to use; The dust of wiping falls into dust-collecting box, can not fly upward everywhere, and contaminated environment has guaranteed that teachers and students are healthy.
Description of drawings
Fig. 1 is a side view of the present utility model, shows its overall structure.
The specific embodiment
In the accompanying drawing illustrated embodiment, the utlity model has the last cylinder 2 and the bottom roll 11 that are installed in the horizontal direction on the wall by support 1,9, on last cylinder 2 and bottom roll 11, install around closed flexible belt blackboard surface 4, between the two sides, front and back of blackboard surface 4, have by support 3 to be fixed on the vertical plane gripper shoe 5 that being used on the wall hold in the palm flat blackboard surface 4.The rear side surface that is adjacent to blackboard surface 4 have by support be fixed on the wall level to strip blackboard eraser 7, there is the dust cover 6 that is contained on the support outside of blackboard eraser 7, the dust-collecting box 8 that can conveniently take off is equipped with in dust cover 6 belows, on the installation shaft 10 of bottom roll 11 operating rocker handle 12 is housed.
Claims (1)
1, a kind of circulation self-erasing type dustproof blackboard, it is characterized in that having last cylinder (2) and the bottom roll (11) that is installed in the horizontal direction on the wall by support (1) (9), closed flexible belt blackboard surface (4) is housed on last cylinder (2) and bottom roll (11), between the two sides, front and back of blackboard surface (4), have by support (3) and be fixed on flat support plate (5) on the wall, the rear side surface that is adjacent to blackboard surface (4) have by support be fixed on the wall level to strip blackboard eraser (7), dust cover (6) is equipped with in the outside of blackboard eraser (7), dust-collecting box (8) is equipped with in dust cover (6) below, on the installation shaft (10) of bottom roll (11) crank (12) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052506 CN2719603Y (en) | 2004-07-15 | 2004-07-15 | Circulating self-erasing dust-proof blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052506 CN2719603Y (en) | 2004-07-15 | 2004-07-15 | Circulating self-erasing dust-proof blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2719603Y true CN2719603Y (en) | 2005-08-24 |
Family
ID=35008567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420052506 Expired - Fee Related CN2719603Y (en) | 2004-07-15 | 2004-07-15 | Circulating self-erasing dust-proof blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2719603Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774180A (en) * | 2012-05-04 | 2012-11-14 | 梁正 | Dustproof blackboard capable of automatically erasing blackboard writings |
| CN103273769A (en) * | 2013-04-25 | 2013-09-04 | 苏州市职业大学 | Circulation cloth self-erasing blackboard |
| CN107933156A (en) * | 2017-11-15 | 2018-04-20 | 方正圆 | A kind of ideological and political education clipboard |
-
2004
- 2004-07-15 CN CN 200420052506 patent/CN2719603Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774180A (en) * | 2012-05-04 | 2012-11-14 | 梁正 | Dustproof blackboard capable of automatically erasing blackboard writings |
| CN103273769A (en) * | 2013-04-25 | 2013-09-04 | 苏州市职业大学 | Circulation cloth self-erasing blackboard |
| CN103273769B (en) * | 2013-04-25 | 2015-10-28 | 苏州市职业大学 | A kind of circulation cloth automatic erasing blackboard |
| CN107933156A (en) * | 2017-11-15 | 2018-04-20 | 方正圆 | A kind of ideological and political education clipboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203210961U (en) | Multifunctional blackboard eraser | |
| CN2719603Y (en) | Circulating self-erasing dust-proof blackboard | |
| CN111469585B (en) | Teaching equipment | |
| CN203681101U (en) | Dust removing blackboard eraser | |
| CN205112786U (en) | Multifunctional blackboard eraser | |
| CN203044385U (en) | Dust cleaner of blackboard eraser | |
| CN2880523Y (en) | Automatic eraser | |
| CN200992073Y (en) | Self-erasing tpe blackboard | |
| CN208498078U (en) | A kind of blackboard eraser dustproof device | |
| CN201211802Y (en) | Chalk dust absorbing blackboard eraser | |
| CN2354780Y (en) | Drum style dust-collecting blackboard eraser | |
| CN200967362Y (en) | Dust-free blackboard eraser | |
| CN2422147Y (en) | Erasing-free dustless blackboard | |
| CN201192962Y (en) | Dust-less blackboard wiper | |
| CN2134930Y (en) | Water-washed air-dried eraser | |
| CN213441800U (en) | A portable blackboard structure for physical education | |
| CN201792663U (en) | Dust collecting blackboard eraser without electric power | |
| CN201385524Y (en) | Dust suction blackboard eraser | |
| CN208133903U (en) | A kind of blackboard eraser with dustproof construction | |
| CN208615576U (en) | A kind of blackboard with recycling chalk dust function | |
| CN2355892Y (en) | Belt circulation blackboard | |
| CN2309959Y (en) | Light dust-proof blackboard traser | |
| CN2749699Y (en) | Dust-proof blackboard eraser | |
| CN2582894Y (en) | Two-sided rolled groove blackboard | |
| CN2213644Y (en) | Anti-dust eraser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |