CN2569637Y - Height adjustable myopia preventing rack - Google Patents
Height adjustable myopia preventing rack Download PDFInfo
- Publication number
- CN2569637Y CN2569637Y CN 02257660 CN02257660U CN2569637Y CN 2569637 Y CN2569637 Y CN 2569637Y CN 02257660 CN02257660 CN 02257660 CN 02257660 U CN02257660 U CN 02257660U CN 2569637 Y CN2569637 Y CN 2569637Y
- Authority
- CN
- China
- Prior art keywords
- lifting
- bracing frame
- myopia
- frame
- adjustable myopia
- 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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- Supports Or Holders For Household Use (AREA)
Abstract
The utility model relates to a height adjustable myopia preventing rack. A lifting post (5) is inserted in a bracing frame (1), and a concave flexible jaw carrier which is long or is in circular arc shape is fixed on the top end of the lifting post (5) or a protruding transverse arm (7) of the lifting post. A base seat (2) is fixed at the bottom part of the bracing frame (1). One end of a C-shaped retaining clip (3) is sheathed outside the bracing frame (1) at the upper part of the base seat (2), and end face of one end is screwed with a lock bolt (6). The utility model has the advantages of strong practicability, convenient use, and security, and overcomes the commonly existing defect of the existing myopia preventing rack. The utility model is an effective appliance with convenient use, myopia prevention, and humpbacked prevention.
Description
Technical field
The utility model is the auxiliary equipment that is used for pre-myopia prevention, mainly relates to the adjustable myopia-preventing frame of a kind of lifting.
Background technology
Pre-myopia prevention in order to prevent myopia of student, keeps good sighting distance from picking up for a short time, has several myopic-preventing auxiliary equipment at present, as the patent disclosure of the patent No. 97236412.9 a kind of adjustable myopia-preventing frame.This device comprises geometrical clamp, and adjusting bracket is connected with geometrical clamp, has the T shape lifting bracketing of locating hole to be inserted in the vertical hole of adjusting bracket.This device is easy to carry, and has played the effect that keeps good sighting distance.But this device lifting bracketing is insecure, and adjustable height is difficult for the location, and geometrical clamp can not adapt to the thickness of any desktop, and loosening easily when clamping desktop, brings inconvenience and the uneasy congruent factor used.
Summary of the invention
In order to overcome the shortcoming that existing apparatus exists, it is a kind of safe in utilization comfortable that the utility model provides, can be according to the convenient adjustable myopia-preventing frame of a kind of lifting of regulating the lifting column height of user's height.
The technical scheme that the utility model adopted is: mainly be made up of bracing frame, base, geometrical clamp, the lifting column that the top is fixed with the jaw holder is inserted in the bracing frame, base is fixed on the bracing frame bottom, and C type geometrical clamp one end is enclosed within outside the base upper support shelf, and an end end face is screwed with clamping screw.
The jaw holder is long or the circular arc concavity, is directly fixed on the transverse arm that lifting column top or lifting column stretch out; The lifting column left and right sides is provided with spill lifting positioning runner, and the both sides, front and back are provided with the lifting scale, by both sides, bracing frame top bolt locking chute location; Base is the umbrella cover shape, and is adsorbable in desktop; The clamping screw top is provided with a top flat.
Adopt the beneficial effect that the utility model reaches after the above technical scheme to be: can be according to the convenient adjusting that realizes the fixing and sighting distance of myopia-preventing frames of different desks; Soft jaw holder long or the circular arc spill make jaw portion comfortablely loosen, indeformable; Inflexed jaw holder health in use need not turn forward, and effectively prevents hunchback.This device is practical, esy to use, safe and reliable, overcomes the existing ubiquitous defective of myopia-preventing frame, is conveniently to use and the myopia prevention that carries, anti-bow-backed useful apparatus.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the profile schematic diagram of the utility model jaw holder.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, bracing frame 1, base 2, geometrical clamp 3, jaw holder 4, lifting column 5, clamping screw 6, transverse arm 7, chute 8, bolt 9, scale 10, top flat 11.
At accompanying drawing 1, in shown in 2, lifting column 5 is inserted in the bracing frame 1, be fixed with the rubber jaw holder 4 that is long or circular arc concavity on the transverse arm 7 that lifting column 5 tops or lifting column 5 stretch out, base 2 is fixed on bracing frame 1 bottom, C type geometrical clamp 3 one ends are enclosed within outside base 2 upper support shelf 1, one end end face is screwed with clamping screw 6, lifting column 5 left and right sides are provided with spill lifting positioning runner 8, the both sides, front and back are provided with lifting scale 10, by both sides, bracing frame 1 top bolt 9 locking chutes 8 location, rubber base plate 2 is the umbrella cover shape, Yi Bian align with the desk edge for straight line, clamping screw 6 tops are provided with a top flat 11.During use, C type geometrical clamp 3 is enclosed within the desk top and bottom, pin bracing frame 1 downwards, rubber base plate 2 just sucks in desktop, tightens clamping screw 6, top flat 11 withstands the bottom surface of desk face, looser a bolt 9, press the height that scale 10 is regulated lifting column 5, tight a bolt 9, jaw portion puts to the jaw holder 4 of stretching out to human body, makes sight line and desktop remain normal line of sight.
Claims (5)
1, a kind of adjustable myopia-preventing frame of lifting that is installed on the desk edge, mainly comprise bracing frame (1), base (2), geometrical clamp (3), it is characterized in that: the lifting column (5) that the top is fixed with jaw holder (4) is inserted in the bracing frame (1), base (2) is fixed on bracing frame (1) bottom, C type geometrical clamp (3) one ends are enclosed within outside base (2) upper support shelf (1), and an end end face is screwed with clamping screw (6).
2, the adjustable myopia-preventing frame of a kind of lifting according to claim 1 is characterized in that: described jaw holder (4) is long or the circular arc concavity, is directly fixed on the transverse arm (7) that lifting column (5) top or lifting column (5) stretch out.
3, the adjustable myopia-preventing frame of a kind of lifting according to claim 1, it is characterized in that: described lifting column (5) left and right sides is provided with spill lifting positioning runner (8), the both sides, front and back are provided with lifting scale (10), by bracing frame (1) both sides, top bolts (9) locking chutes (8) location.
4, the adjustable myopia-preventing frame of a kind of lifting according to claim 1, it is characterized in that: described base (2) is the umbrella cover shape, and is adsorbable in desktop.
5, the adjustable myopia-preventing frame of a kind of lifting according to claim 1 is characterized in that: described clamping screw (6) top is provided with a top flat (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257660 CN2569637Y (en) | 2002-10-01 | 2002-10-01 | Height adjustable myopia preventing rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257660 CN2569637Y (en) | 2002-10-01 | 2002-10-01 | Height adjustable myopia preventing rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2569637Y true CN2569637Y (en) | 2003-09-03 |
Family
ID=33725558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257660 Expired - Fee Related CN2569637Y (en) | 2002-10-01 | 2002-10-01 | Height adjustable myopia preventing rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2569637Y (en) |
-
2002
- 2002-10-01 CN CN 02257660 patent/CN2569637Y/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 |