CN2317831Y - Vision protector - Google Patents
Vision protector Download PDFInfo
- Publication number
- CN2317831Y CN2317831Y CN 97216944 CN97216944U CN2317831Y CN 2317831 Y CN2317831 Y CN 2317831Y CN 97216944 CN97216944 CN 97216944 CN 97216944 U CN97216944 U CN 97216944U CN 2317831 Y CN2317831 Y CN 2317831Y
- Authority
- CN
- China
- Prior art keywords
- vision protector
- tubular column
- arc
- vision
- crank arm
- 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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- Rehabilitation Tools (AREA)
Abstract
The utility model belongs to a vision protector which is used for correcting the sitting postures of students when the students study, comprising a base, an upright post and a supporting shelf. The base is fixedly provided with a barrel-shaped upright post. The top end of a crank arm is hinged with an arc-shaped supporting shelf. The surface of the arc-shaped supporting shelf is fixedly provided with a soft pad. The upright end of the crank arm is fixed to the barrel-shaped upright post through a positioning device. When the utility model is used, the lower jaws of the students are arranged in the arc-shaped supporting shelf of the vision protector. The positioning device is used for adjusting height to make the lower jaws maintain the best distance with books. The vision protector not only can effectively protect vision of the students, but also can make necks obtain rest for lightening fatigue. After the vision protector is used, the vision protector can be disassembled. The utility model has the advantages of convenient portability and small size.
Description
This utility model belongs to the vision protector of rectifying student's sitting posture when learning.
When having many primary and secondary students to learn, often do not rectify because of seated posture, health excessively turns forward, and makes the hypotelorism of eyes and desktop and has damaged the vision of eyes, causes amblyopia, myopia.In addition, because student's homework is heavy, operation is many, and the time of study is long, and overfatigue causes student's learning posture not rectify, and shadow plays eyes myopia or bow-backed.
The purpose of this utility model is to provide a kind of vision protector, can rectify the sitting posture of student when learning, and makes eyes and books keep the distance that is fit to, vision protection, and pre-myopia prevention, simultaneously, overtired in the time of can also helping the student to alleviate study.
This utility model is achieved in that a kind of vision protector; comprise base, column and carriage; on base, fixing the tubular column by thread connection; the top of cranking arm is linking arc-shaped bracket; fixing pad on the contact surface of arc-shaped bracket, the upright end of cranking arm is fixed by positioning device in the tubular column.
During use, this utility model is placed on the desk, user places lower jaw on the arc-shaped bracket of the present utility model, and the height of regulating arc-shaped bracket by positioner according to the height of tables and chairs makes eyes and books remain on optimum distance, then the stationary positioned device.Because arc-shaped bracket supports to suitable position with the lower jaw of user, guarantee that books and student's eyes are in optimum distance, thereby student's vision is protected effectively.In addition, student's following Jaw is supported on the arc-shaped bracket, makes cervical region obtain suitable rest, can help the student to alleviate the overtired of when study.
Fig. 1 is the structural representation of this utility model embodiment 1, and Fig. 2 is the arc-shaped bracket A-A cutaway view of following spill, and Fig. 3 is the structural representation of this utility model embodiment 2, and Fig. 4 is a locking nut assembly structure cross-sectional schematic.Below in conjunction with accompanying drawing this utility model is further described; a kind of vision protector; comprise base; the carriage of column and crank supports; upward fixing tubular column (4) at base (5) by thread connection; on the bottom surface of base (5), be fixed with rubber blanket (6); base (5) can cylinder iron be made; the surface of tubular column (4) is provided with scale; the arc-shaped bracket (2) that the top of (3) linking of cranking arm; fixing pad (1) on the contact surface of arc-shaped bracket (2); pad (1) can be fabric or sponge; arc-shaped bracket (2) can be the groove shape carriage that adapts with lower jaw; it also can be the arc surfaced carriage that adapts with lower jaw; the upright end of (3) of cranking arm is fixed by positioning device in tubular column (4); the periphery of upright end of (3) of cranking arm is provided with scale; positioner can be that the upper lateral part at tubular column (4) is provided with adjustment screw (7); the screw rod that is deep into the adjustment screw (7) in the tubular column (4) will crank arm (3) fixing; during use; unclamping adjustment screw (7) is the height of scalable arc-shaped bracket (2); positioner can be that screwed the going up on the end periphery of tubular column (4) has uniform open slot; the upper end of locking nut (8) screw is provided with conical bore; locking nut (8) matches with the upper end of tubular column (4); behind the height that regulates arc-shaped bracket (2); tighten locking nut (8); conical bore compressing tubular column (4) in the screw has the upper end of open slot and tightens up, and the upright end of will crank arm (3) is held tightly fixing.After finishing using, can pull down base (5), in the upright end income tubular column (4) of will crank arm (3), or pull down crank arm (3), volume is little, and is easy to carry.
Claims (6)
1, a kind of vision protector; comprise base, column and carriage; it is characterized in that upward fixing tubular column (4) by thread connection at base (5); the arc-shaped bracket (2) that the top of (3) linking of cranking arm; fixing pad (1) on the contact surface of arc-shaped bracket (2), the upright end of crank arm (3) is fixed by positioning device in tubular column (4).
2, vision protector according to claim 1 is characterized in that being fixed with rubber blanket (6) on the bottom surface of base (5).
3, vision protector according to claim 1 is characterized in that the surface of tubular column (4) is provided with scale, and the periphery of the upright end of crank arm (3) is provided with scale.
4, vision protector according to claim 1 is characterized in that positioner is that upper lateral part at tubular column (4) is provided with adjustment screw (7), the screw rod that is deep into the adjustment screw (7) in the tubular column (4) will crank arm (3) fixing.
5, vision protector according to claim 1; it is characterized in that positioner is that screwed the going up on the end periphery of tubular column (4) has uniform open slot; the upper end of locking nut (8) screw is provided with conical bore, and locking nut (8) matches with the upper end of tubular column (4).
6, vision protector according to claim 1 is characterized in that pad (1) is fabric or sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216944 CN2317831Y (en) | 1997-05-25 | 1997-05-25 | Vision protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216944 CN2317831Y (en) | 1997-05-25 | 1997-05-25 | Vision protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2317831Y true CN2317831Y (en) | 1999-05-12 |
Family
ID=33933696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97216944 Expired - Fee Related CN2317831Y (en) | 1997-05-25 | 1997-05-25 | Vision protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2317831Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665984A (en) * | 2015-03-13 | 2015-06-03 | 张陆瑶 | Contact lens installing frame |
-
1997
- 1997-05-25 CN CN 97216944 patent/CN2317831Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665984A (en) * | 2015-03-13 | 2015-06-03 | 张陆瑶 | Contact lens installing frame |
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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 |