CN215932281U

CN215932281U - Myopia prevention device

Info

Publication number: CN215932281U
Application number: CN202122389341.0U
Authority: CN
Inventors: 李良
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-01
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a myopia prevention device which comprises a telescopic rod, wherein a connecting block is installed at the top end of the telescopic rod, the outer part of the connecting block is connected with a connecting arm through a first fastening bolt, one end of the connecting arm is rotatably connected with a first lens through a connecting shaft seat, a second fastening bolt is arranged between the first lens and the connecting shaft seat, the bottom of the telescopic rod is provided with an installation structure, the installation structure comprises an installation seat, a pressing block and an installation bolt, the installation bolt penetrates through the installation seat, and the installation bolt is in threaded connection with the installation seat. The myopia prevention device has the effect of convenience and quickness in installation, the sitting posture is maintained in a double-mirror reflection mode, the reading sight line can be influenced when the sitting posture is changed, a user can keep the correct sitting posture without being bound by external force, the phenomenon of vision reduction caused by poor sitting posture is effectively avoided, the adjustability is good, and the myopia prevention device is suitable for people of different ages.

Description

Myopia prevention device

Technical Field

The utility model relates to the field of myopia prevention devices, in particular to a myopia prevention device.

Background

Education is one of the routes of important social development all the time, in the process of student education, the vision of students is affected due to the fact that the students need to read frequently for a long time, the sitting postures are not standard, and the bending down and the lowering of the head are important factors causing the vision to be reduced, so that a myopia prevention device is needed to be used for preventing myopia;

firstly, the existing myopia prevention devices are generally provided with two types, wherein one type is arranged in a head-wearing mode, but the phenomenon that the correct sitting posture is difficult to keep still exists, and the head-wearing mode needs to be provided with myopia prevention devices of different models aiming at different ages and head types, so that the applicability is poor; another kind is with carrying on spacingly or carrying the mode of carrying the waist to the head through the chin and setting up, it is poor to have the use convenience, keeps the effect poor, also influences reading or writing comfort level moreover, and the result of use is poor.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a myopia prevention device, which can effectively solve the problems in the background technology that: the existing myopia prevention devices are generally of two types, one type is arranged in a head-wearing mode, but the phenomenon that the correct sitting posture is difficult to keep still exists, and the head-wearing mode needs to be provided with myopia prevention devices of different models according to different ages and head types, so that the applicability is poor; another kind is with carrying on spacingly or carrying the mode of carrying the waist to the head through the chin and setting up, has the use convenience poor, keeps the effect poor, also influences reading or writes the comfort level moreover, the poor technical problem of result of use.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a myopia prevention device, includes the telescopic link, the connecting block is installed on the top of telescopic link, the outside of connecting block is connected with linking arm through first fastening bolt, the one end of linking arm is connected with first lens through connecting the axle bed rotation, first lens and be equipped with second fastening bolt between the connection axle bed, the bottom of telescopic link is equipped with mounting structure.

As a further scheme of the utility model, the mounting structure comprises a mounting seat, a pressing block and a mounting bolt, the mounting bolt penetrates through the mounting seat, the mounting bolt is in threaded connection with the mounting seat, and the pressing block is rotatably connected to the top end of the mounting bolt.

As a further scheme of the utility model, the mounting seat is Contraband-shaped, and the top of the pressing block is provided with a non-slip pad.

As a further scheme of the present invention, a second lens is disposed at the other end of the connecting shaft seat, and the size of the first lens is larger than that of the second lens.

As a further scheme of the utility model, the upper part of the mounting seat is provided with a connecting seat, and the connecting seat is rotatably connected with the telescopic rod.

As a further scheme of the utility model, one end of each of the first fastening bolt, the second fastening bolt and the mounting bolt is provided with a rotating handle, and the outer surface of the rotating handle is provided with an anti-skidding groove.

Compared with the prior art, the utility model has the following beneficial effects: according to the myopia prevention device, the mounting structure is arranged, the mounting seat is clamped at the edge position of the desktop, the mounting bolt is rotated, the mounting bolt pushes the pressing block to extrude the bottom of the desktop, so that the mounting seat is extruded and fixed, the whole myopia prevention device is mounted, the problem that a traditional myopia prevention device is inconvenient to mount is solved, the mounting convenience of the myopia prevention device is improved, the myopia prevention device is suitable for desktops of different thicknesses, and the applicability is strong;

through setting up first lens, the second lens, link first fastening bolt of arm cooperation and second fastening bolt, not hard up first fastening bolt and two second fastening bolt, to linking the arm, first lens and second lens are adjusted, adjust and tighten first fastening bolt and second fastening bolt again behind the suitable angle, make the books that need read on the desktop pass through the refraction of second lens to first lens, the user observes through first lens and reads, adopt the mode of two specular reflection to keep the position of sitting, will influence the reading sight when the position of sitting changes, make the user keep the correct position of sitting under not having the external force constraint, the effectual phenomenon of leading to the visual degradation because of the position of sitting is poor avoided, and the regulation nature is good, be applicable to the crowd of various different ages.

Drawings

FIG. 1 is a schematic view of the whole structure of an anti-myopia device of the present invention;

FIG. 2 is a front view of an anti-myopia device of the present invention;

figure 3 is a side view of an anti-myopia device of the present invention.

In the figure: 1. a telescopic rod; 2. connecting blocks; 3. a connecting arm; 4. a first fastening bolt; 5. connecting the shaft seat; 6. a first lens; 7. a second fastening bolt; 8. a second lens; 9. a mounting structure; 10. a mounting seat; 11. briquetting; 12. installing a bolt; 13. a connecting seat.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, a myopia prevention device comprises a telescopic rod 1, a connecting block 2 is installed on the top end of the telescopic rod 1, the outside of the connecting block 2 is connected with a connecting arm 3 through a first fastening bolt 4, one end of the connecting arm 3 is rotatably connected with a first lens 6 through a connecting shaft seat 5, a second fastening bolt 7 is arranged between the first lens 6 and the connecting shaft seat 5, and an installation structure 9 is arranged at the bottom of the telescopic rod 1.

In this embodiment, in order to solve the inconvenient problem of installing of traditional myopia prevention device, set up mounting structure 9, mounting structure 9 is including mount pad 10, briquetting 11 and mounting bolt 12, and mounting bolt 12 runs through mount pad 10, and mounting

bolt

12 and 10 threaded connection of mount pad, and 11 rotations of briquetting are connected on mounting bolt 12's top, have improved the convenience of myopia prevention device installation, are applicable to the desktop of different thickness moreover, and the suitability is strong.

In addition, the shape of the mounting seat 10 is Contraband font, and the top of briquetting 11 is equipped with the slipmat, and the slipmat can play non-slip effect.

In this embodiment, the other end of the connecting shaft seat 5 is provided with a second lens 8, and the size of the first lens 6 is larger than that of the second lens 8.

In this embodiment, the upper portion of the mounting seat 10 is provided with a connecting seat 13, and the connecting seat 13 is rotatably connected with the telescopic rod 1.

In addition, the one end of first fastening bolt 4, second fastening bolt 7 and construction bolt 12 all is equipped with the turning handle, and the antiskid groove has been seted up to the surface of turning handle, and the turning handle can play the effect of making things convenient for the application of force, and the guard groove can play skid-proof effect.

The utility model is to be noted that, when the myopia prevention device is used, the mounting seat 10 is clamped at the edge position of a desktop, then the mounting bolt 12 is rotated, the mounting bolt 12 pushes the pressing block 11 to press the bottom of the desktop, so that the mounting seat 10 is pressed and fixed, the whole myopia prevention device is mounted, after the myopia prevention device is mounted, the first fastening bolt 4 and the two second fastening bolts 7 are loosened, the connecting arm 3, the first lens 6 and the second lens 8 are adjusted, and after the connecting arm, the first lens 6 and the second lens 8 are adjusted to a proper angle, the first fastening bolt 4 and the second fastening bolt 7 are screwed, so that books needing to be read on the desktop are refracted to the first lens 6 through the second lens 8, and a user observes and reads through the first lens 6.

According to the utility model, the mounting structure 9 is arranged, the mounting seat 10 is clamped at the edge position of the desktop, then the mounting bolt 12 is rotated, the mounting bolt 12 pushes the pressing block 11 to extrude the bottom of the desktop, so that the mounting seat 10 is extruded and fixed, the mounting of the whole myopia prevention device is completed, the problem that the traditional myopia prevention device is inconvenient to mount is solved, the mounting convenience of the myopia prevention device is improved, and the myopia prevention device is suitable for desktops with different thicknesses and has strong applicability; through setting up first lens 6, second lens 8, link arm 3 cooperation first fastening bolt 4 and second fastening bolt 7, become flexible first fastening bolt 4 and two second fastening bolt 7, link arm 3, first lens 6 and second lens 8 are adjusted, adjust to screw up first fastening bolt 4 and second fastening bolt 7 again behind the suitable angle, make the books that need read on the desktop pass through second lens 8 refraction to first lens 6, the user observes through first lens 6 and reads, adopt the mode of two specular reflection to keep the position of sitting, will influence the reading sight when the position of sitting changes, make the user keep the correct position of sitting under no external force constraint, the effectual phenomenon of leading to the vision to descend because of the position of sitting difference of avoiding, and the adjustability is good, be applicable to the crowd of various different ages.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An anti-myopia device, which is characterized in that: including telescopic link (1), connecting block (2) are installed on the top of telescopic link (1), the outside of connecting block (2) is connected with even arm (3) through first fastening bolt (4), the one end of even arm (3) is rotated through connecting axle bed (5) and is connected with first lens (6), be equipped with second fastening bolt (7) between first lens (6) and the connecting axle bed (5), the bottom of telescopic link (1) is equipped with mounting structure (9).

2. A myopia prevention device according to claim 1, wherein: mounting structure (9) are including mount pad (10), briquetting (11) and construction bolt (12), construction bolt (12) run through mount pad (10), and construction bolt (12) and mount pad (10) threaded connection, briquetting (11) rotate to be connected on the top of construction bolt (12).

3. An anti-myopia apparatus according to claim 2, wherein: the mounting seat (10) is Contraband-shaped, and the top of the pressing block (11) is provided with an anti-slip pad.

4. A myopia prevention device according to claim 1, wherein: the other end of the connecting shaft seat (5) is provided with a second lens (8), and the size of the first lens (6) is larger than that of the second lens (8).

5. An anti-myopia apparatus according to claim 2, wherein: and the upper part of the mounting seat (10) is provided with a connecting seat (13), and the connecting seat (13) is rotatably connected with the telescopic rod (1).

6. A myopia prevention device according to claim 1, wherein: and one ends of the first fastening bolt (4), the second fastening bolt (7) and the mounting bolt (12) are respectively provided with a rotating handle, and the outer surface of the rotating handle is provided with an anti-skidding groove.