CN2254672Y - School desk board for preventing nearsightedness - Google Patents
School desk board for preventing nearsightedness Download PDFInfo
- Publication number
- CN2254672Y CN2254672Y CN 96215474 CN96215474U CN2254672Y CN 2254672 Y CN2254672 Y CN 2254672Y CN 96215474 CN96215474 CN 96215474 CN 96215474 U CN96215474 U CN 96215474U CN 2254672 Y CN2254672 Y CN 2254672Y
- Authority
- CN
- China
- Prior art keywords
- board
- study
- utility
- model
- preventing
- 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)
- Tables And Desks Characterized By Structural Shape (AREA)
Abstract
The utility model relates to a cultural and teaching article, particularly a study board for preventing myopia which can be arranged on a desk, comprising a bottom board and a writing board. The utility model is characterized in that the bottom board is provided with a chute and a supporting rod, the writing board is provided with a distance limiting device, and the distance limiting device is provided with a supporting telescopic rod. The utility model has the advantages of simple structure and flexible and convenient use and can be used for effectively controlling the distance of eyes and a book when persons study. Thereby, a purpose of preventing the myopia can be achieved. The study board for preventing myopia can be widely used for study of primary and secondary school students and can be used for daily work and study for the persons.
Description
A kind of myopia prevention learning board, it belongs to school supply and stationery, particularly a kind of learning board that the myopia prevention function is arranged that places on the table.
At present bathomorphic patient group occurred frequently is primary and secondary students, and now the bathomorphic incidence of disease of primary and secondary students high mainly be because most of students reading, its posture is incorrect when writing, and causes the fatigue of optic nerve, and bring out myopia.
The purpose of this utility model is to provide and makes the student can guarantee correct posture when study, prevents the myopia prevention learning board of eye strain.
The purpose of this utility model is achieved in that
A kind of myopia prevention learning board, it comprises base plate 1 and board 3, it is characterized in that being provided with on base plate 1 chute 10 and support bar 8; On board 3, be provided with a distance limit device 5.Distance limit device 5 is provided with supporting expansion link 6, and supporting flexible 6 places the adjusting knob 7 that is located on the board 3, the casket accessory plate 4 that writes in board 3.On base plate 1, be provided with drawer 2.
Accompanying drawing 1 is a structural representation of the present utility model:
Be embodiment of the present utility model with accompanying drawing 1 below, the utility model further specified:
Base plate 1 is rectangular framework, has chute 10 on two frames of base plate 1, is provided with a control handle 9 in the chute 10.One of support bar 8 terminates on the control handle 9.Board 3 is embedded on the base plate 1.In the time of board 3 need being supported, can utilize control handle 9 that support bar 8 is fixed and go up in position, board 3 is supported.Distance limit device 5 can be a retention device, on distance limit device 5, can connect a supporting expansion link 6, supporting expansion link 6 has two effects, the one, be used for support distances limiter 5, the secondth, can utilize supporting expansion link 6 stretching in adjusting knob 7, come the height of adjustable range limiter position.Fixed suitable position apart from controller 5, when people in when study, if eyes are too near from books, will run into distance limit device 5, thereby reach the purpose of distance between restriction eyes and the books.Board 3 can be set to cavity, and casket goes into to assist board 4 in cavity, increasing the usable floor area of board 3, during bigger if desired board usable floor area, can assist board 4 to extract out.Also be provided with drawer 2 on base plate 1, drawer 2 can be used for all kinds of stationery such as dress pen, ruler, can increase function of the present utility model like this, can make the schooling apparatus integration again.
The utility model is simple in structure, and is flexible and convenient to use, can control people effectively at when study eyes and the distance of books, reaches the purpose of pre-myopia prevention.The utility model can be widely used among primary and secondary students' the study, also can be applicable among daily office of people and the study.
Claims (4)
1, a kind of myopia prevention learning board, it comprises base plate (1) board (3), it is characterized in that being provided with chute (10) and support bar (8) at base plate (1); Be provided with a distance limit device (5) at board (3).
2, the myopia prevention learning board described in claim 1 is characterized in that distance limit device (5) is provided with supporting expansion link (6), and supporting expansion link (6) places the adjusting knob (7) that is located on the board (3).
3, the myopia prevention learning board described in claim 1 or 2 is characterized in that in board (3) casket one accessory plate (4) that writes.
4, the myopia prevention board described in claim 1 or 2 is characterized in that being provided with drawer (2) on base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215474 CN2254672Y (en) | 1996-07-15 | 1996-07-15 | School desk board for preventing nearsightedness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96215474 CN2254672Y (en) | 1996-07-15 | 1996-07-15 | School desk board for preventing nearsightedness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2254672Y true CN2254672Y (en) | 1997-05-28 |
Family
ID=33897252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96215474 Expired - Fee Related CN2254672Y (en) | 1996-07-15 | 1996-07-15 | School desk board for preventing nearsightedness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2254672Y (en) |
-
1996
- 1996-07-15 CN CN 96215474 patent/CN2254672Y/en not_active Expired - Fee Related
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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 |