CN2927838Y - Door shape shrinking fall type anti-shortsightedness frame - Google Patents
Door shape shrinking fall type anti-shortsightedness frame Download PDFInfo
- Publication number
- CN2927838Y CN2927838Y CN 200620105185 CN200620105185U CN2927838Y CN 2927838 Y CN2927838 Y CN 2927838Y CN 200620105185 CN200620105185 CN 200620105185 CN 200620105185 U CN200620105185 U CN 200620105185U CN 2927838 Y CN2927838 Y CN 2927838Y
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- CN
- China
- Prior art keywords
- vertical rod
- cross bar
- locking device
- vertical bar
- bar
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- 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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- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
The utility model relates to a myopia prevention frame for middle and primary school children. The technical problem needed to be solved is that the myopia prevention frame provided should be characterized by flexible mounting, convenient adjusting and easy producing. The technical scheme is that a door-type shrinking falling myopia prevention frame comprises a combining frame of pi-shape, vertical bars on the two edges of the combining frame are respectively connected with a sliding cover which is fixed on the fixing base, a rough vertical bar inside the vertical bar is inserted in the sliding cover with an up and down moving, the fine vertical bar is inserted in the rough vertical with connection, locking devices are respectively arranged between the fine vertical bar and the rough vertical bar and between the rough vertical bar and the sliding cover, cross bars with horizontal placement are respectively arranged on the top portion of two fine vertical bars, an adjusting cross bar is sleeved with two cross bars at the same time, the locking device is arranged between the cross bar and the adjusting cross bar, each locking device comprises a spring pin and a U-type spring chip, wherein one end of the spring pin is welded on the U-type spring chip, the spring chip portion is embedded inside the thin wall hollow pipe with a pin hole, the upper half section of the fin vertical bar is bended to directly form the cross bar.
Description
Technical field
The utility model relates to the myopia-preventing frame that a kind of primary and secondary students use, and especially is installed in the myopia-preventing frame of various desktops in school, the family room.
Background technology
In recent years, people's tool height that the student suffers from myopia does not descend, and the trend that increases is year by year arranged, and has caused the common concern of society.Be pre-myopia prevention, the myopia of particularly preventing primary and secondary students, except that having the appropriate illumination, the sitting posture during pupil reading and writing is also very important.For correcting the incorrect sitting posture of student, existing multiple myopia-preventing frame comes out.But the ubiquitous defective of existing myopia-preventing frame is that steadiness is not enough, rocks easily during use, thereby causes myopic-preventing effect to reduce.
The utility model content
Technical problem to be solved in the utility model is: overcome above-mentioned the deficiencies in the prior art, a kind of improvement of myopia-preventing frame is provided, this myopia-preventing frame should have good, flexible for installation, easy to adjust, the easy to manufacture characteristics of steadiness.
The technical scheme that the utility model provides is: the door shape formula myopia-preventing frame that contracts, comprise a combined bay that is " ∏ " shape, and the montant on combined bay both sides connects a holder that is installed in the desk side respectively; Be shaped on sliding sleeve on the holder, montant then comprises slotting thick vertical rod that connects of cover and thin vertical rod, and thick vertical rod insertion sliding sleeve also can slide up and down in sliding sleeve; Between thick vertical rod and the thin vertical rod and between thick vertical rod and the sliding sleeve locking device is housed respectively; The top of two thin vertical rods also is shaped on a horizontally disposed cross bar respectively, and other has one to regulate cross bar and overlap simultaneously and follow described two cross bars, cross bar and regulate between the cross bar locking device also is housed; Described each locking device all is that the end with a spring pin is welded on the U type reed, and its reed partly is embedded in the book wall hollow pipe that has pin-and-hole.
Described cross bar is directly bent by the upper semisection of thin vertical rod and forms.
Described thick vertical rod, thin vertical rod, cross bar and adjusting cross bar all adopt hollow pipe.
When using this myopia-preventing frame, an available 2-3 screw is fixed on holder trailing flank (near body side) or left and right side (Fig. 4 or the position shown in Figure 5) of desktop, make this shape that is extended into Fig. 1, and, make cross bar from about desktop 30cm each locking device locking.The less student of stature can make bar turn down to the 25cm, is convenient to write get final product.Owing to when using there be stopping of cross bar, force the user to keep correct sitting posture, and make eyes and books keep suitable distance, just can prevent that myopia from taking place, and also can progressively correct pseudo-myopia simultaneously as long as adhere to using.During the superimposed contraction of this myopia-preventing frame, only need press the spring pin of the locking device on the montant of both sides and press down the both sides montant simultaneously, just this myopia-preventing frame can be collapsed to a limit (position shown in Figure 4).
With prior art relatively, steadiness of the present utility model greatly strengthens; When reality was used, owing to a limit is arranged as the fulcrum that increases, rigidity increased greatly, can not produce swag phenomenon.During installation, holder can be installed in the nearly body side or the left and right side of various desks, and this myopia-preventing frame can be contracted under the desktop and not take up space after the use; And adjustable height when using, regulate flexibly, easy to use.In addition, this myopia-preventing frame rational in infrastructure, easy to manufacture, cost is lower, and is practical.
Description of drawings
Fig. 1. be perspective view of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram of holder of the present utility model.
Fig. 3 is the structural representation of locking device of the present utility model.
Fig. 4 is the utility model user mode schematic diagram.
Fig. 5 the utility model closed state schematic diagram.
Fig. 6, Fig. 7 are respectively other two kinds of structural representations that holder is connected with montant.
The specific embodiment
As shown in Figure 1, the door shape formula myopia-preventing frame that contracts comprises a combined bay that is " ∏ " shape, and the montant on combined bay both sides connects a holder 2 that is installed in the desk side respectively, is shaped on sliding sleeve 1 on the holder; Described montant comprises thick vertical rod 3 and the thin vertical rod 5 that cover insert to connect, and thick vertical rod is inserted sliding sleeve 1 and can be slided up and down in sliding sleeve that (sliding sleeve 1 among the figure is the cambered surface of more than half circumference, and thick vertical rod in clamping reliably; Also can adopt the sleeve of complete circle side face, have effect same); Between thick vertical rod and the thin vertical rod locking device 4-2 is housed, between thick vertical rod and the holder locking device 4-1 is housed also; The top of two thin vertical rods also is shaped on a horizontally disposed cross bar 5-1 respectively, and other has one to regulate cross bar 6 and overlap simultaneously and follow described two cross bars, can regulate the distance between definite two montants during installation as required; As seen, cross bar 5-1 is directly bent by the upper semisection of thin vertical rod 5 and forms, and can simplify technology, saves cost among the figure; Certainly also can in thin vertical rod, add cross bar of weldering, have effect same; In addition, described adjusting cross bar 6 can be than cross bar 5-1 thicker or more carefully (as Fig. 4, shown in Figure 5), and effect is identical; Between cross bar and the adjusting cross bar locking device 4-3 is housed also, with the steadiness of intensifier.
The concrete structure of above-described locking device can have multiple, and the structure of the locking device that Fig. 3 shows is: the end of a spring pin 4-1-1 is welded on the U type reed 4-1-2, and its reed partly is embedded in the hollow interior pipe of the book wall that has pin-and-hole; Spring pin 4-1-1 is subjected to the effect of U type reed elastic force to have outward movment trend, when the external movement parts that are shaped on dowel hole (as thick vertical rod) through out-of-date, the spring pin promptly inserts dowel hole, the book wall hollow in the pipe promptly lock with the external movement parts; As inwardly press spring pin 4-1-1 with external force, make its dowel hole that breaks away from the external movement parts, the two state that just goes out of lock.
Holder and montant also can adopt other syndeton; Wherein the holder among Fig. 6 is shaped on flanging outward, to increase the distance of sliding sleeve 1 and desk side, can be installed on the desk with the desktop that overhangs more greatly; Fig. 7 then be the montant on combined bay both sides respectively only with a thin vertical rod 5, same effect is also arranged.
Light for installing, described thick vertical rod, thin vertical rod and cross bar all adopt hollow pipe.
The superimposed step of the contraction of this myopia-preventing frame is: 1. press locking device 4-1 on the montant of both sides and the spring pin of 4-2, press down thin vertical rod thin vertical rod and thick vertical rod are got final product sliding to bottommost under in the sliding sleeve 1.
When reusing, the reverse operating above steps can make it be in user mode.
During actual the manufacturing, each bar all can adopt hexagon chromium plating thin-walled hollow steel pipe.
Claims (3)
1, the door shape formula myopia-preventing frame that contracts comprises a combined bay that is " ∏ " shape, it is characterized in that the montant on described combined bay both sides connects a holder (2) that is installed in the desk side respectively; Be shaped on sliding sleeve (1) on the holder, montant then comprises slotting thick vertical rod (3) that connects of cover and thin vertical rod (5), and thick vertical rod is inserted sliding sleeve and also can be slided up and down in sliding sleeve; Between thick vertical rod and the thin vertical rod and between thick vertical rod and the sliding sleeve locking device is housed respectively; The top of two thin vertical rods also is shaped on a horizontally disposed cross bar (5-1) respectively, and other has one to regulate cross bar (6) and overlap simultaneously and follow described two cross bars, between cross bar and the adjusting cross bar locking device is housed also; Described each locking device all is that the end with a spring pin (4-1-1) is welded on the U type reed (4-4-2), and its reed partly is embedded in the book wall hollow pipe that has pin-and-hole.
2, the door according to claim 1 shape formula myopia-preventing frame that contracts is characterized in that described cross bar (5-1) is directly bent by the upper semisection of thin vertical rod to form.
3, the door according to claim 1 and 2 shape formula myopia-preventing frame that contracts is characterized in that described thick vertical rod (3), thin vertical rod (5), cross bar (5-1) and adjusting cross bar (6) all adopt hollow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105185 CN2927838Y (en) | 2006-06-27 | 2006-06-27 | Door shape shrinking fall type anti-shortsightedness frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620105185 CN2927838Y (en) | 2006-06-27 | 2006-06-27 | Door shape shrinking fall type anti-shortsightedness frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927838Y true CN2927838Y (en) | 2007-08-01 |
Family
ID=38306233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620105185 Expired - Fee Related CN2927838Y (en) | 2006-06-27 | 2006-06-27 | Door shape shrinking fall type anti-shortsightedness frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927838Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111802840A (en) * | 2020-08-11 | 2020-10-23 | 姬金星 | Myopia prevention device |
-
2006
- 2006-06-27 CN CN 200620105185 patent/CN2927838Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111802840A (en) * | 2020-08-11 | 2020-10-23 | 姬金星 | Myopia prevention device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 |