CN204249638U - The board of education that teaching of Chinese uses - Google Patents
The board of education that teaching of Chinese uses Download PDFInfo
- Publication number
- CN204249638U CN204249638U CN201420743730.6U CN201420743730U CN204249638U CN 204249638 U CN204249638 U CN 204249638U CN 201420743730 U CN201420743730 U CN 201420743730U CN 204249638 U CN204249638 U CN 204249638U
- Authority
- CN
- China
- Prior art keywords
- board
- education
- teaching
- base
- hinges
- 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 board of education that teaching of Chinese uses, belong to educational aid field, the problem that the front and back position solving current board of education cannot adjust, it comprises board, base and retractor device, is connected between board with base by retractor device; Described board can be blackboard, blank or green plate etc., and described base can be fixed on wall, and described retractor device can be electrical retractor or manual telescopic device; Described retractor device adopts two hinges, and the front end of two hinges and the two ends, left and right of board are rotationally connected, and the rear end of two hinges and the two ends, left and right of base are rotationally connected.The utility model is used for teaching.
Description
Technical field
The utility model belongs to educational aid field, is specifically related to the board of education that a kind of teaching of Chinese uses.
Background technology
Board of education is the main tool that knowledge is passed on, and can play the effect of effective auxiliary explanation and demonstration, the educational aid that Shi Ge school is indispensable, indispensable one piece of board of education on the front wall in each classroom; The front and back position of current board of education cannot adjust, it is the main cause causing myopia of student, because the distance between the seat of student and board of education is fixed, student sees that the time of board of education is very long again, causes crystalline lens to be in the chronic of same state, just easily causes myopia, the particularly student of Chinese specialty, word content is many, write on the teaching board be all more tiny word, rate of myopia is higher; In order to pre-myopia prevention, student can only change seat weekly on time, and to vision protection not too large help, student can not accomplish that every class changes seat several times, because too large on study impact like this.
Summary of the invention
The purpose of this utility model is the problem that the front and back position in order to solve current board of education cannot adjust, and provide the board of education that a kind of teaching of Chinese uses, its technical scheme is as follows:
The board of education that teaching of Chinese uses, it comprises board, base and retractor device, is connected between board with base by retractor device; Described board can be blackboard, blank or green plate etc., described base can be fixed on wall, described retractor device can be electrical retractor or manual telescopic device, because electrical retractor cost is high, consume electric energy again, and have noise pollution, need to add silencing means, so adopt manual telescopic device more applicable; Described retractor device adopts two hinges, and the front end of two hinges and the two ends, left and right of board are rotationally connected, and the rear end of two hinges and the two ends, left and right of base are rotationally connected.
The beneficial effects of the utility model are: facilitate teacher to adjust distance between board and classmate at any time, every class teacher can adjust two to three times, can effective preventing students from nearsightedness; Board can also deflect to the left and right, meets different teaching needs; Can also hinge is stretching after, in contents such as the sticky notices in hinge surface, the position of board of education, all close to doorway, classroom, almost just to doorway, classroom when hinge is stretching, is easy to when student enters the classroom see content of announcement.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the decomposing schematic representation of Fig. 1;
Fig. 3 is the schematic top plan view of hinge;
Fig. 4 is the schematic side view of board.
detailed description of the invention:
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the board of education that a kind of teaching of Chinese uses, it comprises board 1, base 2 and retractor device, is connected between board 1 with base 2 by retractor device; Described board 1 can be blackboard, blank or green plate etc., described base 2 can be fixed on wall, described retractor device can be electrical retractor or manual telescopic device, because electrical retractor cost is high, consume electric energy again, and have noise pollution, need to add silencing means, so adopt manual telescopic device more applicable; Described retractor device adopts the front end of two hinges, 3, two hinges 3 and the two ends, left and right of board 1 to be rotationally connected, and the rear end of two hinges 3 and the two ends, left and right of base 2 are rotationally connected.
Respectively arrange a rotating shaft 3-1 at the two ends, left and right of board 1 and base 2, respectively arrange an axle sleeve 3-2 in the rear and front end of each hinge 3, the axle sleeve 3-2 of each hinge 3 rear and front end is sleeved on corresponding rotating shaft 3-1.
Claims (4)
1. a board of education for teaching of Chinese use, be is characterized in that it comprises board (1), base (2) and retractor device, is connected between board (1) with base (2) by retractor device.
2. the board of education of a kind of teaching of Chinese use as claimed in claim 1, is characterized in that described retractor device is electrical retractor or manual telescopic device.
3. the board of education of a kind of teaching of Chinese use as claimed in claim 1, it is characterized in that described retractor device adopts two hinges (3), the front end of two hinges (3) and the two ends, left and right of board (1) are rotationally connected, and the rear end of two hinges (3) and the two ends, left and right of base (2) are rotationally connected.
4. the board of education of a kind of teaching of Chinese use as claimed in claim 3, it is characterized in that respectively arranging a rotating shaft (3-1) at the two ends, left and right of board (1) and base (2), respectively arrange an axle sleeve (3-2) in the rear and front end of each hinge (3), the axle sleeve (3-2) of each hinge (3) rear and front end is sleeved in corresponding rotating shaft (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743730.6U CN204249638U (en) | 2014-12-03 | 2014-12-03 | The board of education that teaching of Chinese uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743730.6U CN204249638U (en) | 2014-12-03 | 2014-12-03 | The board of education that teaching of Chinese uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204249638U true CN204249638U (en) | 2015-04-08 |
Family
ID=52953979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420743730.6U Expired - Fee Related CN204249638U (en) | 2014-12-03 | 2014-12-03 | The board of education that teaching of Chinese uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204249638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973442A (en) * | 2018-07-25 | 2018-12-11 | 郑煌 | A kind of blackboard for education |
-
2014
- 2014-12-03 CN CN201420743730.6U patent/CN204249638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973442A (en) * | 2018-07-25 | 2018-12-11 | 郑煌 | A kind of blackboard for education |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |