CN203792964U - Blackboard with scraper - Google Patents
Blackboard with scraper Download PDFInfo
- Publication number
- CN203792964U CN203792964U CN201420219502.9U CN201420219502U CN203792964U CN 203792964 U CN203792964 U CN 203792964U CN 201420219502 U CN201420219502 U CN 201420219502U CN 203792964 U CN203792964 U CN 203792964U
- Authority
- CN
- China
- Prior art keywords
- gear
- blackboard
- scraper plate
- chain
- scraper
- 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
Abstract
The utility model provides a blackboard with a scraper. The blackboard comprises a blackboard body. A first gear, a second gear, a third gear and a fourth gear are respectively disposed on four corners of the blackboard body. The first gear is connected with the second gear through a first chain. The third gear is connected with the fourth gear through a second chain. A rotary shaft is disposed between the first gear and the third gear and between the second gear and the fourth gear. The first gear is further connected with a reduction motor. A scraper is disposed between the first chain and the second chain. The scraper is a hollow cuboid tube. The rear-side panel of the scraper is provided with a plurality of dust collecting holes. A brush is disposed on the outer surface of the rear side of the scraper. The port at one end of the scraper is connected with a fan through a hose. The blackboard has the advantages that the scraper is driven to reciprocate up and down by the power of the reduction motor and through gear transmission so as to wipe the blackboard, chalk dust is discharged through the dust suction holes and the hose under the action of the fan, chalk dust flying is avoided, time and labor are saved, and teaching efficiency is increased.
Description
(1) technical field
The utility model relates to the blackboard using in a kind of teaching, specifically a kind of blackboard that is provided with scraper plate.
(2) background technology
Blackboard is one of teacher's necessary aid of giving lessons.Present normally used blackboard, the setting separated with blackboard eraser of some blackboards, need to clash manually the chalk dust on blackboard, some blackboards and blackboard eraser whole installation, but complex structure, cost is high, or in use procedure, noise is excessive, affect student's mood, also or a large amount of chalk dusts harm students' union producing healthy, these are to be all difficult to the obstruction promoted the use of in teaching life.For this reason, thus need to invent now a kind of simple in structure, can automatic erasing remove the chalk dust on blackboard and directly collect wiping chalk dust, avoid a large amount of chalk dusts in classroom, to fly upward the blackboard of harm SH.
(3) summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, a kind of chalk dust on can Automatic erasing blackboard is provided and directly collects the blackboard that is provided with scraper plate of chalk dust.
The utility model solves the technical scheme that its technical problem adopts:
A kind of blackboard that is provided with scraper plate, comprise blackboard body, on four angles of described blackboard body, be respectively arranged with the first gear, the second gear, the 3rd gear, the 4th gear, between described the first gear and described the second gear, by the first chain, be connected, between described the 3rd gear and described the 4th gear, by the second chain, be connected, between described the first gear and described the 3rd gear, be connected with respectively rotating shaft between described the second gear and described the 4th gear, described the first gear is also connected with reducing motor; Between described the first chain and described the second chain, be provided with the scraper plate that is parallel to blackboard body, described scraper plate is the cuboid pipe of inner hollow, on the rear side panel of scraper plate, offer a plurality of air suction openings, the outer surface of scraper plate trailing flank is provided with the hairbrush with blackboard body CONTACT WITH FRICTION, and the port of scraper plate one end is connected with blower fan by flexible pipe.
The end of described flexible pipe is provided with storage dirt bag.
The port of described scraper plate one end is connected with flexible pipe, and other end port closed arranges.
Compared with prior art, the beneficial effect producing is a kind of blackboard that is provided with scraper plate of the present utility model:
The utility model is simple in structure; easy to operate; take reducing motor as power, with gear drive, drive scraper plate up and down reciprocatingly to move, by hairbrush wiping, remove the chalk dust on blackboard; the chalk dust producing in whole process is under the effect of blower fan; air suction opening on scraper plate, flexible pipe are discharged, and avoid chalk dust to fly upward, and protection student's is healthy; time saving and energy saving, improve the efficiency of giving lessons.
(4) accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, 1, blackboard body, the 2, first gear, the 3, second gear, the 4, the 3rd gear, the 5, the 4th gear, the 6, first chain, the 7, second chain, 8, reducing motor, 9, scraper plate, 10, air suction opening, 11, hairbrush, 12, flexible pipe, 13, blower fan, 14, storage dirt bag.
(5) specific embodiment
Below in conjunction with 1 pair of a kind of blackboard that is provided with scraper plate of the present utility model of accompanying drawing, be described in detail below.
As shown in Figure 1, a kind of blackboard that is provided with scraper plate of the present utility model, its structure comprises blackboard body 1, on four angles of described blackboard body 1, be respectively arranged with the first gear 2, the second gear 3, the 3rd gear 4, the 4th gear 5, between described the first gear 2 and described the second gear 3, by the first chain 6, be connected, between described the 3rd gear 4 and described the 4th gear 5, by the second chain, be connected 7, between described the first gear 2 and described the 3rd gear 4, between described the second gear 3 and described the 4th gear 5, be connected with respectively rotating shaft, described the first gear 2 is also connected with reducing motor 8, between described the first chain 6 and described the second chain 7, be provided with the scraper plate 9 that is parallel to blackboard body 1, the cuboid pipe that described scraper plate 9 is inner hollow, on the rear side panel of scraper plate 9, offer a plurality of air suction openings 10, the outer surface of scraper plate 9 trailing flanks is provided with the hairbrush 11 with blackboard body 1 CONTACT WITH FRICTION, the port of scraper plate 9 one end is connected with blower fan 13 by flexible pipe 12, other end port closed arranges, and the end of described flexible pipe 12 is provided with storage dirt bag 14.
During use, start reducing motor 8 and blower fan 13, by reducing motor 8 driven gears, rotate, by chain-driving scraper plate 9, up and down reciprocatingly move again, the chalk dust on blackboard is removed in hairbrush 11 wipings of scraper plate 9 trailing flanks, chalk dust, under the effect of blower fan 13, enters air suction opening 10, by flexible pipe 12, enters in storage dirt bag.
A kind of its processing and fabricating of blackboard that is provided with scraper plate of the present utility model is simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (3)
1. a blackboard that is provided with scraper plate, comprise blackboard body, it is characterized in that: on four angles of described blackboard body, be respectively arranged with the first gear, the second gear, the 3rd gear, the 4th gear, between described the first gear and described the second gear, by the first chain, be connected, between described the 3rd gear and described the 4th gear, by the second chain, be connected, between described the first gear and described the 3rd gear, be connected with respectively rotating shaft between described the second gear and described the 4th gear, described the first gear is also connected with reducing motor; Between described the first chain and described the second chain, be provided with the scraper plate that is parallel to blackboard body, described scraper plate is the cuboid pipe of inner hollow, on the rear side panel of scraper plate, offer a plurality of air suction openings, the outer surface of scraper plate trailing flank is provided with the hairbrush with blackboard body CONTACT WITH FRICTION, and the port of scraper plate one end is connected with blower fan by flexible pipe.
2. a kind of blackboard that is provided with scraper plate according to claim 1, is characterized in that: the end of described flexible pipe is provided with storage dirt bag.
3. a kind of blackboard that is provided with scraper plate according to claim 1 and 2, is characterized in that: the port of described scraper plate one end is connected with flexible pipe, and other end port closed arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219502.9U CN203792964U (en) | 2014-04-30 | 2014-04-30 | Blackboard with scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420219502.9U CN203792964U (en) | 2014-04-30 | 2014-04-30 | Blackboard with scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203792964U true CN203792964U (en) | 2014-08-27 |
Family
ID=51375221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420219502.9U Expired - Fee Related CN203792964U (en) | 2014-04-30 | 2014-04-30 | Blackboard with scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203792964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901680A (en) * | 2017-11-21 | 2018-04-13 | 宋凯飞 | A kind of drawing writing and teaching device for mathematics classroom |
-
2014
- 2014-04-30 CN CN201420219502.9U patent/CN203792964U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107901680A (en) * | 2017-11-21 | 2018-04-13 | 宋凯飞 | A kind of drawing writing and teaching device for mathematics classroom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Yuguo Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |