CN2133274Y - Myopia preventing unit - Google Patents
Myopia preventing unit Download PDFInfo
- Publication number
- CN2133274Y CN2133274Y CN 92214357 CN92214357U CN2133274Y CN 2133274 Y CN2133274 Y CN 2133274Y CN 92214357 CN92214357 CN 92214357 CN 92214357 U CN92214357 U CN 92214357U CN 2133274 Y CN2133274 Y CN 2133274Y
- Authority
- CN
- China
- Prior art keywords
- myopia
- utility
- model
- child
- head
- 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
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Abstract
The utility model relates to a myopia preventing apparatus which is fixed to the front side of the head of a child when used. The utility model is characterized in that an alarm switch is composed of a conductive body 4 which can swing in an omnibearing and free mode, and a conductive body 5 which is fixed on the casing. The myopia preventing apparatus can emit alarms if the head of a child excessively forwards inclines or tilts left or right when the child reads or writes. The utility model triggers a relevant electronic circuit mainly by utilizing the characteristic of a plumb line, and the purposes of reminding children to keep correct reading and writing posture and preventing eye diseases, such as myopia, etc., can be achieved.
Description
This utility model is that a kind of pupil learns health product, is mainly used in the prevention myopia.
Many children often excessively lean forward its head when the reading handwriting practicing or are excessively crooked towards the both sides, thereby cause visual deterioration.
Existing myopia prevention lamp can only solve head and excessively lean forward to excessive crooked then powerless towards the both sides.
The purpose of this utility model provides a kind of can excessively leaning forward or the excessive instrument of warning that sends when crooked towards the both sides at children head.
As shown in the figure: this instrument comprises housing, buzzer 1, lead 2,3, the heavy conducting rod 4 of the comprehensive pendant that freely swings of energy, electric conductor 5 etc.The top and the housing of conducting rod 4 link, by conductor 5 semi-surroundings.
Concrete work process is as follows: the forehead that during use this instrument is fixed on the child.When its head excessively leans forward, conducting rod 4 will be swung forward with respect to housing, when touching the B point of conductor 5, just be communicated with lead 3 and lead 2, thereby make buzzer 1 energising, warning.And after its head lifted, conducting rod 4 disengaged with the B point, and warning stops.In like manner, if its head left or right excessive when crooked, conducting rod 4 will contact with the A or the C place of conductor 5, and buzzer all can be reported to the police.Obviously have only when its posture is rectified, just silent.
Claims (2)
1, a kind of myopia preventer, be made of the alarm in shell and the shell, alarm includes buzzer 1, lead 2,3, alarm switch and battery etc. is characterized in that: alarm switch is by constituting with the conductor 5 that is fixed on the housing by the comprehensive electric conductor that freely swings 4.
2, according to the myopia preventer of claim 1, it is characterized in that: the electric conductor 4 of the comprehensive swing of energy is surrounded by half in wherein by electric conductor 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214357 CN2133274Y (en) | 1992-03-31 | 1992-03-31 | Myopia preventing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214357 CN2133274Y (en) | 1992-03-31 | 1992-03-31 | Myopia preventing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133274Y true CN2133274Y (en) | 1993-05-19 |
Family
ID=33763717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92214357 Expired - Fee Related CN2133274Y (en) | 1992-03-31 | 1992-03-31 | Myopia preventing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133274Y (en) |
-
1992
- 1992-03-31 CN CN 92214357 patent/CN2133274Y/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 |