CN2178184Y - Rotating belt type dust-free blackboard - Google Patents
Rotating belt type dust-free blackboard Download PDFInfo
- Publication number
- CN2178184Y CN2178184Y CN 93235735 CN93235735U CN2178184Y CN 2178184 Y CN2178184 Y CN 2178184Y CN 93235735 CN93235735 CN 93235735 CN 93235735 U CN93235735 U CN 93235735U CN 2178184 Y CN2178184 Y CN 2178184Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- roller bearing
- cloth
- rolling shaft
- brush
- 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 relates to a rotary belt type dust-free blackboard which is composed of a bracket, an upper rolling shaft, a lower rolling shaft, a piece of blackboard cloth, a sealing box, etc. The utility model is characterized in that the upper rolling shaft and the lower rolling shaft are fixed on the bracket, the blackboard cloth is sheathed on the upper rolling shaft and the lower rolling shaft and is rolled along with the rolling shafts, and a blackboard brush is fixed in the sealing box at the lower part of the blackboard. The utility model has the advantages of low cost, wide applicability, no dust, automatic wipe, circular use, flat surfaces, no light reflection, etc.
Description
The utility model relates to teaching aid, especially a kind of rotation belt dust-free blackboard.
At present, school's blackboard commonly used is fixingly to use easily on the wall, but when erasing the board, the random thing of dust influences the healthy of teacher, students.
The utility model purpose just provides a kind of dust that do not have, and does not influence teacher, the healthy rotation belt dust-free blackboard of student.
The utility model purpose is to be implemented by following technical scheme: rotate the belt dust-free blackboard by support, last roller bearing, following roller bearing, blackboard cloth, seal box, formations such as blackboard brush, be characterized in: on, following roller bearing is fixed by support, blackboard cloth is a kind of wear-resisting, easily wipe, pulling force is strong, the surface is more coarse, the cortical material that quality is softer, blackboard cloth is enclosed within, on the following roller bearing, and roll with roller bearing, in the bottom of support one seal box is set, the bar shaped blackboard brush slightly is wider than blackboard cloth, blackboard brush is fixed in the seal box by the blackboard brush rotating shaft, at the blackboard brush back side one button is arranged, the roller bearing side was provided with crank under following roller bearing also was arranged in the seal box, and following roller bearing can rotate with crank.
Blackboard of the present utility model has the following advantages:
1. to wipe clean 3. blackboards automatically softer for health free from dust 2., write smoothly 4. can recycle 5. surfacings, not reflective, do not get damp again that 6. costs are low, applicability is wide.
Elaborate below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation.
Rotating the belt dust-free blackboard is made of support 3, last roller bearing 1, following roller bearing 8, blackboard cloth 2, seal box 5, blackboard brush 10 etc.Last roller bearing 1, down roller bearing 8 is fixing by support 3, and the blackboard cloth of being made by a kind of wear-resisting, easy wiping, pulling force is strong, the surface is more coarse, quality is softer cortical material 2 is enclosed within on the upper and lower roller bearing 1,8, and rolls with roller bearing.The bottom of support 3 is a seal box 5, and seal box 5 tops are chalk platform 4, are provided with bar shaped blackboard brush 10 in seal box 5, and blackboard brush 10 slightly is wider than blackboard cloth 2, and blackboard brush 10 is fixed in the seal box 5 by blackboard brush rotating shaft 9, and a button 7 is arranged at the back side of blackboard brush 10.Press button 7, blackboard brush 10 contacts with blackboard cloth 2, when 2 motions of blackboard cloth, just the chalk dust on the blackboard cloth 2 can be wiped, and chalk dust is collected in the seal box 5, can disposablely remove.Following roller bearing 8 also is arranged in the seal box 5, and following roller bearing 8 sides are provided with crank 6, and crank 6 rotates, and following roller bearing 8 rotates thereupon, and cover blackboard cloth 2 thereon also rolls thereupon.When need were wiped writing on the blackboard cloth 2, people's only with hand shook crank 6, presses button 7 simultaneously, just writing can be wiped.
Claims (3)
1, a kind of rotation belt dust-free blackboard is by support (3), last roller bearing (1), following roller bearing (8), blackboard cloth (2) constitutes, it is characterized in that: go up roller bearing (1), following roller bearing (8) is fixing by support (3), blackboard cloth (2) is enclosed within, following roller bearing (1), (8) on, and roll with roller bearing, the bottom of support (3) is provided with a seal box (5), blackboard brush (10) is fixed in the seal box (5) by blackboard brush rotating shaft (9), at the back side of blackboard brush (10) button (7) is arranged, following roller bearing (8) also is arranged in the seal box (5), and following roller bearing (8) side is provided with crank (6).
2, rotation belt dust-free blackboard according to claim 1 is characterized in that: blackboard cloth (2) is shaggy cortical material.
3, rotation belt dust-free blackboard according to claim 1 is characterized in that: blackboard brush (10) is the bar shaped blackboard brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93235735 CN2178184Y (en) | 1993-12-25 | 1993-12-25 | Rotating belt type dust-free blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93235735 CN2178184Y (en) | 1993-12-25 | 1993-12-25 | Rotating belt type dust-free blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2178184Y true CN2178184Y (en) | 1994-09-28 |
Family
ID=33811095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93235735 Expired - Fee Related CN2178184Y (en) | 1993-12-25 | 1993-12-25 | Rotating belt type dust-free blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2178184Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839379A (en) * | 2017-10-12 | 2018-03-27 | 李建云 | The practical small blackboard of one kind teaching |
-
1993
- 1993-12-25 CN CN 93235735 patent/CN2178184Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839379A (en) * | 2017-10-12 | 2018-03-27 | 李建云 | The practical small blackboard of one kind teaching |
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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 |