CN213524525U

CN213524525U - Myopia prevention support

Info

Publication number: CN213524525U
Application number: CN202022355034.6U
Authority: CN
Inventors: 袁江雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-25
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a myopia prevention support, including two fixing support, two fixing support has desk board, two through bolted connection all be equipped with the cavity in the fixing support, two all rotate in fixing support's the cavity and be connected with outer telescopic link, one of them fixing support's cavity internalization is equipped with the kelly, the kelly runs through fixing support's bottom, outer telescopic link's bottom be equipped with kelly complex notch, two outer telescopic link all is connected with interior telescopic link, two through the knob outer telescopic link with interior telescopic link is a style of calligraphy structure, reaches the end position of sitting, reduces teenagers children stage skeleton and warp, guarantees head and books distance, reduces the purpose of myopia incidence.

Description

Myopia prevention support

Technical Field

The utility model relates to a myopia prevention technical field specifically is a myopia prevention support.

Background

The myopia number of primary and secondary school students in China currently increases year by year, the main reason is the popularization of intelligent electronic products driven by rapid economic development, more children of the low ages can be in early contact, the other main reason is the development of poor eye use habits, the factors of the formation of the poor eye use habits are many, the sitting posture in class, the use frequency of the electronic products, the brightness of lamplight and the like can generate certain influences, the myopia is not formed all at once, the myopia is closely related to external factors such as the environment where the students are located for a long time, the main reason that the primary and secondary school students suffer from the myopia is that the long-term sitting posture is not correct, and therefore, the bracket is designed to improve the sitting posture, ensure the distance between eyes and a textbook and reduce the incidence rate of the myopia, and is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a myopia prevention support has solved the problem mentioned in the above-mentioned technical background. In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a myopia prevention support, includes two fixing support, two fixing support has the desk board through bolted connection, two all be equipped with the cavity in the fixing support, two all rotate in fixing support's the cavity and be connected with outer telescopic link, one of them fixing support's cavity internalization is equipped with the kelly, the kelly runs through fixing support's bottom, the bottom of outer telescopic link be equipped with kelly complex notch, two outer telescopic link all is connected with interior telescopic link through the knob, two outer telescopic link with interior telescopic link is door style of calligraphy structure.

Preferably, the inner telescopic rod is sleeved with rubber sponge.

Preferably, the bottom of the fixed support, in which the clamping rod is arranged, is provided with a sliding groove, and the sliding groove is matched with the clamping rod.

Preferably, one end of the clamping rod, which is arranged in the cavity of the fixed support, is provided with a limiting block.

Preferably, one end of the clamping rod, which is far away from the fixed support, is provided with a handle.

To sum up, the utility model discloses following beneficial effect has:

this kind of myopia prevention support through removing the kelly for the last outer telescopic link of fixing support can rotate and fix in vertical direction, makes this support can the vertical fixation on the desktop and rotate the effect under the desk, makes the classroom go on class and have a rest twice not wrong. When the support is vertically fixed on the desktop, the sitting posture of the student is correct, the student cannot lie prone on a desk, and the learning efficiency during the class is improved; in addition, when having arrived to the class, the student need lean on the desk to have a rest, can be very convenient with the support rotation to below the desktop, not consuming time, there is almost no noise during the rotation, through the bolt that sets up on the fixing support for this support adapts to the desk that multiple board is thick, reaches the end position of sitting, reduces teenagers children's stage skeleton and warp, guarantees head and books distance, reduces the mesh of myopia incidence.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is a cross-sectional view of the fixing support when the outer telescopic rod of the present invention is perpendicular to the tabletop;

fig. 4 is a front view of the fixing support of the present invention;

fig. 5 is a cross-sectional view at a point a of the present invention;

fig. 6 is a cross-sectional view of the present invention at B.

In the figure: desk board 1, fixing support 2, rubber sponge 3, interior telescopic link 4, outer telescopic link 5, knob 6, kelly 7, bolt 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, a myopia prevention support comprises two fixed supports 2, the two fixed supports 2 are connected with a desk board 1 through bolts 8, the support is adapted to desks with various board thicknesses through the bolts 8 arranged on the fixed supports 2, a cavity is arranged in each of the two fixed supports 2 and penetrates through one end of the fixed support 2, an outer telescopic rod 5 is rotatably connected in each cavity of the two fixed supports 2, the bottom of the outer telescopic rod 5 is rotatably arranged in the cavity, a second cavity is arranged on the inner side of the cavity and is higher than the cavity, so that the height difference between the height of the second cavity and the height of the cavity is generated to generate steps, a clamping rod 7 is slidably arranged in the cavity of one fixed support 2, the clamping rod 7 penetrates through the top of the fixed support 2, a notch matched with the clamping rod 7 is arranged at the bottom of the outer telescopic rod 5, when the support works, the outer telescopic rod 5 is perpendicular to the desktop, the notch reserved on the outer telescopic rod 5 is aligned with the sliding groove of the fixed support 2 at the moment, the clamping rod 7 is taken out of the second cavity, the clamping rod 7 is clamped in the notch on the outer telescopic rod 5 and the sliding groove of the fixed support 2, the support is stable and does not shake, when the outer telescopic rod 5 is clamped, the clamping rod 7 can be touched to move left and right carelessly, a step with low height is arranged, the clamping rod 7 can be stopped after retreating to the step, the support cannot be unstable even if the clamping rod 7 is touched carelessly, the clamping rod 7 blocked by the step is still clamped in the outer telescopic rod 5, when a break occurs in a class, the clamping rod 7 is moved and placed back into the second cavity, the clamping rod 7 needs to be pushed up to stride over the step, the clamping rod 7 is placed in the second cavity, the support is rotated to be below the desktop, the inner telescopic rods 4 are connected with the two outer telescopic rods 5 through the knob 6, two outer telescopic link 5 are door style of calligraphy structure with interior telescopic link 4, and two 5 inside hollow structures that are of outer telescopic link, interior telescopic link 4 insert in this hollow structure, through twisting knob 6 for interior telescopic link 4 goes up and down at 5 inside hollow structures of outer telescopic link, makes the teenagers of different heights all can adapt to this support. The whole support is simple and compact in structure and good in strength, metal material parts related to the support are required to be polished without edges and sharp spines, the rubber sponge 3 is required to be made of qualified materials, the rubber sponge is non-toxic and odorless, noise is low when the buckle rotates, the rubber sponge is stable and does not shake when being clamped, the support is perpendicular to a desktop and is firmly clamped by the clamping rod 7 when a student goes on class, the student can optimize sitting posture and writing posture of the student by using the support, myopia risks caused by problems such as sitting posture are effectively reduced, and the student can correct sitting posture when going on class by vertically fixing the support on the desktop, does not lie prone on the desk, and improves learning efficiency during class; in addition, when having arrived to the class, the student need lean on the desk to have a rest, can be very convenient with the support rotation to below the desktop, not consuming time, there is almost no noise during the rotation, reach and hold the position of sitting upright, reduce teenagers children's stage skeleton and warp, guarantee head and books distance, reduce the purpose of near-sighted incidence.

The inner telescopic rod 4 is sleeved with the rubber sponge 3, the support can not collide with the head through the flexibility of the rubber sponge 3, the bottom of the fixed support 2 provided with the clamping rod 7 is provided with a sliding groove, the sliding groove is matched with the clamping rod 7, the clamping rod 7 moves in the sliding groove, when the outer telescopic rod 5 rotates to a notch reserved on the outer telescopic rod 5 and the sliding groove are in the same vertical direction, the support is vertical to the desktop at the moment, then the clamping rod 7 moves to the notch reserved on the outer telescopic rod 5 through the sliding groove to be fixed, one end of the clamping rod 7 arranged in the cavity of the fixed support 2 is provided with a limiting block, the clamping rod 7 can not fall off from the bottom of the fixed support 2 through the limiting block, when the support is arranged below the desktop, the limiting block is arranged in the second cavity, the limiting block is clamped in the second cavity at the moment, and the clamping rod 7 can not influence the rotation of the outer telescopic rod 5, one end of the clamping rod 7, which is far away from the fixed support 2, is provided with a handle. The clamping rod 7 is convenient to move through the handle.

The utility model discloses a myopia prevention support's application method and theory of operation as follows: screw bolt 8 on two fixing support 2, fix fixing support 2 in the edge of desk board 1, make this support fix on the desk, when the support during operation, with outer telescopic rod 5 perpendicular to desktop, the notch that reserves on the outer telescopic rod 5 this moment aligns with fixing support 2's spout, slip kelly 7 blocks outer telescopic rod 5, make the support stable, do not rock, when the break in class, same reverse direction slip kelly 7, place kelly 7 in the second cavity, outer telescopic rod 5 does not retrain this moment, rotate the support below the desktop through manual, make the student can lean on the desk rest, reach the end normal position of sitting, reduce teenagers' stage skeleton and warp, guarantee head and books distance, reduce the purpose of near-sighted incidence.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A myopia prevention support is characterized in that: including two fixing support (2), two fixing support (2) are connected with desk board (1), two through bolt (8) all be equipped with the cavity in fixing support (2), two all rotate in the cavity of fixing support (2) and be connected with outer telescopic link (5), one of them the cavity internalization of fixing support (2) is equipped with kelly (7), kelly (7) run through the bottom of fixing support (2), the bottom of outer telescopic link (5) be equipped with kelly (7) complex notch, two outer telescopic link (5) all are connected with interior telescopic link (4) through knob (6), two outer telescopic link (5) with interior telescopic link (4) are the style of calligraphy structure.

2. A myopia prevention support according to claim 1, wherein: the inner telescopic rod (4) is sleeved with a rubber sponge (3).

3. A myopia prevention support according to claim 1, wherein: the bottom of the fixed support (2) provided with the clamping rod (7) is provided with a sliding groove, and the sliding groove is matched with the clamping rod (7).

4. A myopia prevention support according to claim 1, wherein: and a limiting block is arranged at one end of the clamping rod (7) arranged in the cavity of the fixed support (2).

5. A myopia prevention support according to claim 1, wherein: and a handle is arranged at one end, far away from the fixed support (2), of the clamping rod (7).