CN2593639Y

CN2593639Y - Myopia-proof devices

Info

Publication number: CN2593639Y
Application number: CN 02277767
Authority: CN
Inventors: 刘建辉; 刘艽
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-27
Filing date: 2002-11-27
Publication date: 2003-12-24
Anticipated expiration: 2012-11-27

Abstract

The utility model relates to a myopia-preventing device. The top part of a fixing bracket is provided with a lifting rod. A limit rod is fixed on the lifting rod by a locating hole or a screw thread. The end of the limit rod is provided with an angle fitting with 5 to 10 cm. The end of the angle fitting is provided with a limit plate. Because the limit rod can adjust the height position on the lifting rod, an apparent distance can be ensured between 30 and 35 cm when a student reads and writes. Because the end of the limit rod is provided with the angle fitting with 5 to 10 cm, the end of the angle fitting is provided with the limit plate, the distance between the student's body and the edge of a desk can be ensured between 5 and 10 cm. The utility model can specify and cultivate the student's correct sitting posture and good study habit, and can prevent the eye disease of the myopia from generating. The utility model is suitable for wide adolescents, and is particularly suitable for primary and secondary school students to use.

Description

A kind of myopic-preventing device

One, affiliated technical field:

The utility model relates to a kind of students' supplies, is a kind of students in middle and primary schools' of being used for myopia prevention device specifically.

Two, background technology:

At present, students in middle and primary schools are between the learning period because reading, the abnormal sitting posture when writing is true, eyes and book, distance do not grasp, make a lot of students suffer from myopia unconsciously.In case got myopia, in life, study, work, bring inconvenience must not for the patient, the more important thing is influences entering a higher school, join the army, obtaining employment of student, all can bring loss for student, the head of a family and country.A lot of artificial addressing this problem have once been invented many myopic-preventing devices, but mostly or because of complex structure, cost height, student are reluctant to buy, or because of using trouble, poor operability, and effect is bad, fails widespread usage.The numerous teenagers and the head of a family thereof urgently wish to have a kind of simple in structure, low price, and easy to use, effective myopia prevention device is asked the city early.

Three, summary of the invention:

For standard and cultivate students in middle and primary schools reading, when writing sitting posture, form good reading, the custom of writing, avoid taking place myopia, and overcome the defective that existing myopia prevention device can not popularization and application, the utility model provide a kind of can according to student's height regulate sighting distance, simple in structure, cost is low, easily and effectively the myopic-preventing device of students in middle and primary schools, to satisfy the numerous youth and the head of a family thereof an urgent demand to myopia prevention device.

The utility model is that the technical scheme that its technical problem of solution is adopted is: at the correct position of existing desk or desk, design a fixed mount that comprises threaded screw rod and lower plate, the fixed mount top is provided with elevating lever, elevating lever is provided with screw thread or a plurality of locating hole, by screw-threaded engagement or locating hole, latch structure be connected with gag lever post, that gag lever post is made as 20～30cm is long, the gag lever post top is provided with the elbow of a 5～10cm, and the elbow end is fixed with limiting plate.

The beneficial effects of the utility model are: 1. because fixed mount is provided with elevating lever, elevating lever is provided with screw thread or locating hole, by threaded adjusting or select suitable locating hole, fix its long gag lever post of 20～30cm of adapted with it with latch, the student that can be fit to different heights uses, make different students all reach the purpose of 30～35cm sighting distance, so it is applied widely, uses simple; The distance that 2. 5～10cm is arranged because of the limiting plate of gag lever post end and desk or desk edge, make the student at reading, health and table when writing along the distance of 5～10cm is arranged, help standard and form correct sitting posture, avoid because of the abnormal sitting posture generation deformity of spinal column or hypometropia; 3. simple in structure because of the utility model, make easily, if made of plastic, cost is low, vast adolescent student can both be afforded, and is convenient to promotion and implementation.

Four, description of drawings:

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1, threaded screw rod, 2, lower plate, 3, fixed mount, 4, latch in the locating hole, 5, elevating lever, 6, gag lever post, 7, limiting plate.

Five, specific embodiment:

Design the threaded screw rod (1) of a band regulating handle, top at this screw mandrel (1) is fixed with lower plate (2) by screw, screw mandrel (1) is by being threadably engaged in the lower end of " " type fixed mount (3), regulate the handle of threaded screw rod (1), fixed mount (2) is fixed on desk or the desk edge, be provided with elevating lever (5) on the top of fixed mount (3), elevating lever (5) is square or circular column, column is provided with a plurality of locating holes or screw thread, on elevating lever (5), be provided with the long gag lever post (6) of 20～30cm, this gag lever post selects different locating holes or rotation screw thread can regulate the upper-lower position of gag lever post by latch (4), to adapt to different height students' needs, the sighting distance that guarantees the student has 30～35cm, the top of gag lever post (6) is provided with the elbow of 5～10cm, be screwed limiting plate (7) on the elbow, this limiting plate can make student's health and the distance that there is 5～10cm on the table edge.

Claims

1, a kind of myopic-preventing device, include the fixed mount of threaded screw rod and lower plate, elevating lever, gag lever post, limiting plate, it is characterized in that: the fixed mount top is provided with elevating lever, elevating lever is provided with screw thread or a plurality of locating hole, be connected with gag lever post by screw-threaded engagement or latch on the elevating lever, the end of gag lever post is provided with elbow, and the elbow end is provided with limiting plate.

2, myopia prevention device according to claim 1 is characterized in that: the elbow on the top of described gag lever post has 5～10cm long, and the length of described gag lever post is 20～30cm.