CN203126248U - Electric blackboard - Google Patents
Electric blackboard Download PDFInfo
- Publication number
- CN203126248U CN203126248U CN 201220724163 CN201220724163U CN203126248U CN 203126248 U CN203126248 U CN 203126248U CN 201220724163 CN201220724163 CN 201220724163 CN 201220724163 U CN201220724163 U CN 201220724163U CN 203126248 U CN203126248 U CN 203126248U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- chain
- rail groove
- driven
- drive sprocket
- 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 discloses an electric blackboard which comprises a blackboard body. Rail grooves are formed at two ends of the blackboard body, idler wheels are arranged at two ends of the blackboard body and located inside the rail grooves, a drive sprocket and a driven sprocket are respectively arranged at the upper end and the lower end of the rail grooves, the drive sprocket is connected with the driven sprocket through a chain, and the chain is fixedly connected with the blackboard body and hung on the drive sprocket in a connected mode. The electric blackboard is characterized in that the obverse side of a first blackboard and the obverse side of a second blackboard are both provided with blackboard erasers, and two ends of each blackboard eraser are respectively fixed in the middle of each rail groove. The electric blackboard is simple in structure, can be automatically erased, is convenient to use, and saves labor and time.
Description
Technical field
The utility model belongs to the assistant product technical field of writing or draw, and specifically, relates to a kind of driven blackboard.
Background technology
Teaching is at present gone up the blackboard that uses and had many drawbacks: generally during after class, because the time compactness, many students or teacher be wiping rapidly for blackboard wiping, and in rapid wiping process, the amplitude of wiping is big, causes dust to fly upward everywhere, contaminated air, endanger the healthy of Faculty and Students, at school, the teacher must constantly remove blackboard wiping when not stopping to write, both labor intensive expended time in again.
The prior art shortcoming: blackboard eraser can not Automatic erasing blackboard, and the blackboard eraser blackboard wiping, dust from flying, contaminated air, health risk.
Summary of the invention
For solving above technical problem, the purpose of this utility model is to provide a kind of driven blackboard of energy Automatic erasing blackboard.
The utility model purpose is achieved in that
A kind of driven blackboard, comprise blackboard, described blackboard two ends are provided with rail groove, described blackboard comprises first blackboard and second blackboard, the two ends of described first blackboard and second blackboard are equipped with roller, described roller is positioned at described rail groove, the top and bottom of described rail groove are respectively equipped with drive sprocket and driven sprocket, described drive sprocket is connected with driven sprocket by chain, described chain comprises first chain and second chain, fixedly connected with the upper end of second blackboard with first blackboard respectively in the two ends of described first chain, and be articulated on the described drive sprocket, fixedly connected with the lower end of second blackboard with first blackboard respectively in the two ends of described second chain, and be articulated on the driven sprocket, described first blackboard is positioned at the front side, and described second blackboard is positioned at rear side, its key is: the front of described first blackboard and second blackboard is equipped with blackboard eraser, and described blackboard eraser two ends are separately fixed at the middle part of described rail groove.Adopt said structure, along with moving up and down of blackboard, fixing blackboard eraser and blackboard generation relative motion are carried out wiping to blackboard.
In the above-mentioned rail groove over against described drive sprocket interconnect by driving shaft, described driven sprocket interconnects by driven shaft, described driving shaft links to each other with motor.Adopt said structure, by the drive of motor, blackboard can move automatically, need not manually spur, and saves time, and saves muscle power.
Above-mentioned blackboard eraser is provided with pivoted arm, described blackboard eraser is hinged on the described rail groove by pivoted arm, described pivoted arm is provided with spacing preiection, corresponding described spacing preiection is provided with the arc stopper slot on the described rail groove, described spacing preiection stretches into described arc stopper slot, and described arc stopper slot is provided with buckling groove near an end of blackboard.Adopt said structure, blackboard eraser is pulled out, and does not contact blackboard, when the needs blackboard wiping, only blackboard eraser need be pressed into and block, and just can carry out wiping to blackboard.
Beneficial effect:
The utility model is a kind of driven blackboard, and is simple in structure, can carry out wiping to blackboard automatically, easy to use, saves muscle power, saves time.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is the assembling schematic diagram of blackboard eraser 9 and rail groove 1 among Fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Please refer to illustrated in figures 1 and 2: a kind of driven blackboard, comprise blackboard, described blackboard two ends are provided with rail groove 1, described blackboard comprises first blackboard 2 and second blackboard 3, the two ends of described first blackboard 2 and second blackboard 3 are equipped with roller 4, described roller 4 is positioned at described rail groove 1, the top and bottom of described rail groove 1 are respectively equipped with drive sprocket 5 and driven sprocket 6, in the described rail groove 1 over against described drive sprocket 5 interconnect by driving shaft 5a, described driven sprocket 6 interconnects by driven shaft 6a, described driving shaft 5a links to each other with motor, described drive sprocket 5 is connected with driven sprocket by chain, described chain comprises first chain 7 and second chain 8, fixedly connected with the upper end of second blackboard 3 with first blackboard 2 respectively in the two ends of described first chain 7, and be articulated on the described drive sprocket 5, fixedly connected with the lower end of second blackboard 3 with first blackboard 2 respectively in the two ends of described second chain 8, and be articulated on the driven sprocket 6, described first blackboard 2 is positioned at the front side, described second blackboard 3 is positioned at rear side, the front of described first blackboard 2 and second blackboard 3 is equipped with blackboard eraser 9, and described blackboard eraser 9 two ends are separately fixed at the middle part of described rail groove 1.
And then as shown in Figure 3, described blackboard eraser 9 is provided with pivoted arm 9a, described blackboard eraser 9 is hinged on the described rail groove 1 by pivoted arm 9a, described pivoted arm 9a is provided with spacing preiection 9b, corresponding described spacing preiection 9b is provided with arc stopper slot 1a on the described rail groove 1, described spacing preiection 9b stretches into described arc stopper slot 1a, and described arc stopper slot 1a is provided with buckling groove 1b near an end of blackboard.
Claims (3)
1. driven blackboard, comprise blackboard, described blackboard two ends are provided with rail groove (1), described blackboard comprises first blackboard (2) and second blackboard (3), the two ends of described first blackboard (2) and second blackboard (3) are equipped with roller (4), described roller (4) is positioned at described rail groove (1), the top and bottom of described rail groove (1) are respectively equipped with drive sprocket (5) and driven sprocket (6), described drive sprocket (5) is connected with driven sprocket (6) by chain, described chain comprises first chain (7) and second chain (8), fixedly connected with the upper end of second blackboard (3) with first blackboard (2) respectively in the two ends of described first chain (7), and be articulated on the described drive sprocket (5), fixedly connected with the lower end of second blackboard (3) with first blackboard (2) respectively in the two ends of described second chain (8), and be articulated on the driven sprocket (6), described first blackboard (2) is positioned at the front side, described second blackboard (3) is positioned at rear side, it is characterized in that: the front of described first blackboard (2) and second blackboard (3) is equipped with blackboard eraser (9), and described blackboard eraser (9) two ends are separately fixed at the middle part of described rail groove (1).
2. according to the described driven blackboard of claim 1, it is characterized in that: in the described rail groove (1) over against described drive sprocket (5) interconnect by driving shaft (5a), described driven sprocket (6) interconnects by driven shaft (6a), and described driving shaft (5a) links to each other with motor.
3. according to claim 1 or 2 described driven blackboards, it is characterized in that: described blackboard eraser (9) is provided with pivoted arm (9a), described blackboard eraser (9) is hinged on the described rail groove (1) by pivoted arm (9a), described pivoted arm (9a) is provided with spacing preiection (9b), described rail groove (1) is gone up corresponding described spacing preiection (9b) and is provided with arc stopper slot (1a), described spacing preiection (9b) stretches into described arc stopper slot (1a), and described arc stopper slot (1a) is provided with buckling groove (1b) near an end of blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724163 CN203126248U (en) | 2012-12-25 | 2012-12-25 | Electric blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724163 CN203126248U (en) | 2012-12-25 | 2012-12-25 | Electric blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203126248U true CN203126248U (en) | 2013-08-14 |
Family
ID=48934264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724163 Expired - Fee Related CN203126248U (en) | 2012-12-25 | 2012-12-25 | Electric blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203126248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882260A (en) * | 2015-01-26 | 2016-08-24 | 蓝振宁 | Automatic dust-free blackboard brush |
| CN107175966A (en) * | 2017-07-09 | 2017-09-19 | 徐旭 | A kind of driven blackboard chalk dust erasing apparatus |
| CN107901669A (en) * | 2017-11-10 | 2018-04-13 | 杜鑫 | It is a kind of can automated cleaning blackboard for education |
-
2012
- 2012-12-25 CN CN 201220724163 patent/CN203126248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105882260A (en) * | 2015-01-26 | 2016-08-24 | 蓝振宁 | Automatic dust-free blackboard brush |
| CN107175966A (en) * | 2017-07-09 | 2017-09-19 | 徐旭 | A kind of driven blackboard chalk dust erasing apparatus |
| CN107901669A (en) * | 2017-11-10 | 2018-04-13 | 杜鑫 | It is a kind of can automated cleaning blackboard for education |
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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: 20130814 Termination date: 20131225 |