CN202011270U - Convenient self-cleaning blackboard - Google Patents
Convenient self-cleaning blackboard Download PDFInfo
- Publication number
- CN202011270U CN202011270U CN2011201316126U CN201120131612U CN202011270U CN 202011270 U CN202011270 U CN 202011270U CN 2011201316126 U CN2011201316126 U CN 2011201316126U CN 201120131612 U CN201120131612 U CN 201120131612U CN 202011270 U CN202011270 U CN 202011270U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- blackboard
- lower rotary
- rotary shaft
- toothed disc
- 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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Abstract
The utility model relates to teaching tools, in particular to a convenient self-cleaning blackboard, which comprises an upper spindle and a lower spindle which are installed on the surface of a wall. A soft blackboard for connecting the upper spindle with the lower spindle is sleeved on the upper spindle and the lower spindle. The convenient self-cleaning blackboard is characterized in that the side portions of the upper spindle and the lower spindle are connected through a chain, the end portion of the lower spindle is connected with a gear disc, a driving disc positioned on the upper side of the gear disc is connected with the gear disc through gear teeth, a brush wheel positioned on the lower side of the gear disc is connected with the gear disc through the gear teeth, and a brush spindle is connected to the axis of the brush wheel. Therefore, the convenient self-cleaning blackboard is simple in structure and convenient to use.
Description
(1) technical field
The utility model relates to a kind of teaching aid, the self-cleaning blackboard of particularly a kind of facility.
(2) background technology
We be unable to do without blackboard in the teaching life, but existing blackboard mostly is body of wall, needs after finishing using top letter written with chalk is wiped, so not only lose time, also the full classroom of Nonging is the chalk powder that descends slowly and lightly entirely, influences room air, endangers the healthy of teacher and student more.
(3) summary of the invention
The utility model provides a kind of simple in structure, practical and convenient convenient self-cleaning blackboard in order to remedy the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
The self-cleaning blackboard of a kind of facility comprises the last rotating shaft and the lower rotary shaft that are installed in wall surface, and last rotating shaft is with the soft blackboard that is connected rotating shaft and lower rotary shaft outward with lower rotary shaft, it is characterized in that: described upward rotating shaft is connected by chain with the lower rotary shaft sidepiece; Described lower rotary shaft end is connected with toothed disc; Described toothed disc is connected with the driving disc spacing pressing that is positioned at the toothed disc upside by teeth, and toothed disc is connected with the bristle brush wheel that is positioned at the toothed disc downside by teeth; Described bristle brush wheel axle center is connected with the hairbrush rotating shaft, and the hairbrush rotating shaft is positioned at the soft blackboard outside.
Described driving disc spacing pressing sidepiece departs from circle centre position and is provided with swing handle.
The beneficial effects of the utility model are: the convenient self-cleaning blackboard structure of this utility model is simple, can blackboard is drop-down after finishing using, and it is blackboard eraser is clean in the bottom, a lot of times have been saved, and being unlikely to make chalk powder disorderly to fly, the assurance teacher and student can be learnt under extraordinary air ambient.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is a structural representation of the present utility model;
Among the figure, rotating shaft on 1,2 lower rotary shafts, 3 soft blackboards, 4 chains, 5 toothed discs, 6 driving disc spacing pressings, 7 bristle brush wheels, 8 hairbrush rotating shafts, 9 swing handles.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises last rotating shaft 1 and the lower rotary shaft 2 that is installed in wall surface, last rotating shaft 1 and the lower rotary shaft 2 outer soft blackboards 3 that are connected rotating shaft 1 and lower rotary shaft 2 that are with, and it is characterized in that: described upward rotating shaft 1 is connected by chain 4 with lower rotary shaft 2 sidepieces; Described lower rotary shaft 2 ends are connected with toothed disc 5; Described toothed disc 5 is connected with the driving disc spacing pressing 6 that is positioned at toothed disc 5 upsides by teeth, and toothed disc 5 is connected with the bristle brush wheel 7 that is positioned at toothed disc 5 downsides by teeth; Described bristle brush wheel 7 axle center are connected with hairbrush rotating shaft 8, and hairbrush rotating shaft 8 is positioned at soft blackboard 3 outsides; Described driving disc spacing pressing 6 sidepieces depart from circle centre position and are provided with swing handle 9.
Adopt the self-cleaning blackboard of facility of the present utility model, when using, shaking swing handle 9 rotates driving disc spacing pressing 6, driving disc spacing pressing 6 driven gear dishes 5 rotate with lower rotary shaft 2, lower rotary shaft 2 makes soft blackboard 3 rotate descending by chain 4 and last rotating shaft 1 jointly, this moment, bristle brush wheel 7 also drove hairbrush rotating shaft 8 rotations under the effect of toothed disc 5, and hairbrush rotating shaft 8 will be wiped clean the soft blackboard 3 that streaks in the bottom, and is time saving and energy saving.
Claims (2)
1. self-cleaning blackboard of facility, comprise the last rotating shaft (1) and the lower rotary shaft (2) that are installed in wall surface, the outer soft blackboard (3) that is connected rotating shaft (1) and lower rotary shaft (2) that is with of last rotating shaft (1) and lower rotary shaft (2) is characterized in that: described upward rotating shaft (1) is connected by chain (4) with lower rotary shaft (2) sidepiece; Described lower rotary shaft (2) end is connected with toothed disc (5); Described toothed disc (5) is connected with the driving disc spacing pressing (6) that is positioned at toothed disc (5) upside by teeth, and toothed disc (5) is connected with the bristle brush wheel (7) that is positioned at toothed disc (5) downside by teeth; Described bristle brush wheel (7) axle center is connected with hairbrush rotating shaft (8), and hairbrush rotating shaft (8) is positioned at soft blackboard (3) outside.
2. the self-cleaning blackboard of facility according to claim 1 is characterized in that: described driving disc spacing pressing (6) sidepiece departs from circle centre position and is provided with swing handle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201316126U CN202011270U (en) | 2011-04-29 | 2011-04-29 | Convenient self-cleaning blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201316126U CN202011270U (en) | 2011-04-29 | 2011-04-29 | Convenient self-cleaning blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011270U true CN202011270U (en) | 2011-10-19 |
Family
ID=44781878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201316126U Expired - Fee Related CN202011270U (en) | 2011-04-29 | 2011-04-29 | Convenient self-cleaning blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202011270U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827882A (en) * | 2017-03-05 | 2017-06-13 | 刘金凤 | A kind of teaching aid of self-cleaning |
| CN109624590A (en) * | 2018-11-13 | 2019-04-16 | 刘嘉禾梓 | A kind of distich labelling machine |
-
2011
- 2011-04-29 CN CN2011201316126U patent/CN202011270U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827882A (en) * | 2017-03-05 | 2017-06-13 | 刘金凤 | A kind of teaching aid of self-cleaning |
| CN109624590A (en) * | 2018-11-13 | 2019-04-16 | 刘嘉禾梓 | A kind of distich labelling machine |
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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: 20111019 Termination date: 20120429 |