CN216875464U - Multifunctional eyesight protection frame - Google Patents

Abstract

The utility model discloses a multifunctional eyesight protection frame, which comprises a writing board, wherein a lifting groove board is arranged on the positive end surface of the writing board, the inner side of the lifting groove board is connected with a sliding rod in a sliding manner, the top end of the sliding rod is provided with a rubber pad, two side end surfaces of the writing board are welded with rotating pins, a fixing frame is sleeved on the outer side of the writing board, two side end surfaces of the writing board are respectively provided with a limiting hole, the inner side of each limiting hole is connected with a limiting screw rod in a threaded manner, the sliding rod slides to a position suitable for the height of students to adapt to the use of the students with different heights, the rubber pad can be pressed down by the chin or chest of the students to trigger a contact switch to turn on a warning lamp so as to remind the students to sit upright, when people do not need to use the protection frame, the writing board can be rotated on the inner side of a bearing so as to turn the back surface of the writing board to the top end, thereby reducing the occupation of the protection frame on a desktop, further increasing the utility of the block-protection bracket.

Description

Multifunctional eyesight protection frame

Technical Field

The utility model relates to the technical field of eyesight protection frames, in particular to a multifunctional eyesight protection frame.

Background

Nowadays, the number of people with myopia is gradually increasing and is getting closer to the younger, there are many reasons for myopia, one of them is very important reason related to incorrect reading and writing posture, the vision protection frame is the device that protects the vision for correcting student's sitting posture and thus protect student's vision, chinese patent discloses "a vision protection frame", application number: 201921773309.9, the screw rod is rotated to adjust the position of the second rubber pad, the second rubber pad and the first rubber pad are used for fixing the table top, the first rubber pad is slid to change the distance between the second rubber pad and the front side of the base, the device can be fixed on any type of table, and the practicability of the device is improved.

However, after the existing protective frame is installed, the existing protective frame is difficult to be quickly disassembled, so that the desk of the student can only be used for writing, and the protective frame occupies a large amount of desktop space when manual work is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multifunctional eyesight protection frame which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a multifunctional eyesight protection frame comprises a writing plate, wherein a lifting groove plate is installed on the positive end face of the writing plate, a sliding rod is connected to the inner side of the lifting groove plate in a sliding mode, a positioning threaded hole is formed in the positive end face of the sliding rod, a positioning threaded rod is connected to the inner side of the lifting groove plate in a threaded mode, a top plate is installed at the top end of the sliding rod, a reset sliding rod is connected to the inner side of the top plate in a sliding mode, a supporting spring is sleeved on the outer side of the reset sliding rod, a rubber pad is installed at the top end of the reset sliding rod, a contact switch is installed at the top end of the top plate, and a warning lamp is arranged at the top end of the top plate;

the writing board is characterized in that rotating pins are welded on the end faces of the two sides of the writing board, a fixing frame is sleeved on the outer side of the writing board, bearings are embedded in the positions, corresponding to the rotating pins, of the inner side of the fixing frame, limiting holes are formed in the end faces of the two sides of the writing board, and limiting screws are connected to the inner side of the limiting holes in a threaded mode.

Preferably, the location screw hole has seted up a plurality of, and the positive terminal surface at the slide bar is seted up to a plurality of location screw hole equidistance, location threaded rod passes lifting groove board threaded connection in the inboard of location screw hole.

Preferably, the rotating pin is embedded in the inner side of the bearing, and the writing board is rotatably connected with the fixed frame through the rotating pin and the bearing.

Preferably, the number of the limit screws is two, the two limit screws are symmetrically arranged on the end faces of the two sides of the fixing frame, the limit screws penetrate through threads of the fixing frame and are screwed on the inner sides of the limit holes, and the control end of the warning lamp is electrically connected with the contact switch.

Preferably, the top of writing board installs the slide rail, the outside sliding connection of slide rail has the carriage, the inboard sliding connection of carriage has the tight slide bar of clamp, the outside that presss from both sides tight slide bar has cup jointed the clamp spring, the pressboard is installed to the bottom that presss from both sides tight slide bar.

Preferably, the number of the clamping slide bars is two, and the two clamping slide bars are symmetrically arranged at the top of the sliding frame.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:

1. be provided with the board of writing, the lift frid, the slide bar, the positioning screw hole, positioning screw rod, the roof, the slide bar, supporting spring, the rubber pad, contact switch, the warning light, the rotating pin, the mount, a bearing, spacing hole and stop screw, slide the slide bar to the position department that adapts to student's height, use with the student of adaptation co-altitude, student's chin or chest will push down the rubber pad, thereby trigger contact switch and open the warning light, thereby remind the student to sit upright, when people need not use the fender bracket, can rotate the board of writing in the inboard of bearing, thereby the back that will write the board reverses the top, thereby reduce the occupation of fender bracket to the desktop, further increase the practicality of piece fender bracket.

2. The book clamping device is provided with the sliding rail, the sliding frame, the clamping sliding rod, the clamping spring and the pressing plate, the pressing plate is pulled to compress the clamping spring to place books at the bottom position of the pressing plate, the pressing plate is loosened to clamp the books tightly, a student does not need to hold the books while writing, accordingly, the student is prevented from being busy and disorderly in hands and feet, the writing work which can be intentioned by the student is guaranteed, and the work quality is guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting structure of the reset slide bar of the present invention;

FIG. 3 is a schematic view of the mounting structure of the bearing of the present invention;

FIG. 4 is a schematic view of the mounting structure of the clamp spring of the present invention;

reference numbers in the figures: 1. a writing board; 2. a lifting groove plate; 3. a slide bar; 4. positioning the threaded hole; 5. positioning a threaded rod; 6. a top plate; 7. resetting the sliding rod; 8. a support spring; 9. a rubber pad; 10. a contact switch; 11. a warning light; 12. a rotation pin; 13. a fixed mount; 14. a bearing; 15. a limiting hole; 16. a limit screw; 17. a slide rail; 18. a carriage; 19. clamping the sliding rod; 20. a clamping spring; 21. and (5) pressing the plate.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, a multifunctional eyesight protection frame comprises a writing board 1, a lifting groove plate 2 is installed on the positive end surface of the writing board 1, a sliding rod 3 is slidably connected to the inner side of the lifting groove plate 2, a positioning threaded hole 4 is formed in the positive end surface of the sliding rod 3, a positioning threaded rod 5 is connected to the inner side of the lifting groove plate 2 in a threaded manner, a plurality of positioning threaded holes 4 are formed in the positioning threaded hole 4, the plurality of positioning threaded holes 4 are equidistantly formed in the positive end surface of the sliding rod 3, the positioning threaded rod 5 penetrates through the lifting groove plate 2 and is connected to the inner side of the positioning threaded hole 4 in a threaded manner, the sliding rod 3 is conveniently fixed, a top plate 6 is installed at the top end of the sliding rod 3, a reset sliding rod 7 is slidably connected to the inner side of the top plate 6, a support spring 8 is sleeved on the outer side of the reset sliding rod 7, a rubber pad 9 is installed at the top end of the reset sliding rod 7, a contact switch 10 is installed at the top end of the top plate 6, a warning lamp 11 is arranged at the top end of the top plate 6, and the control end of the warning lamp 11 is electrically connected with the contact switch 10;

the both sides terminal surface of writing board 1 all welds rotational pin 12, rotational pin 12 imbeds the inboard at bearing 14, writing board 1 rotates through rotational pin 12 and bearing 14 and mount 13 to be connected, conveniently rotate writing board 1, mount 13 has been cup jointed in writing board 1's the outside, the inboard of mount 13 and the corresponding position department of rotational pin 12 have imbedded bearing 14, spacing hole 15 has all been seted up to writing board 1's both sides terminal surface, the inboard threaded connection in spacing hole 15 has stop screw 16, stop screw 16 is provided with two, two stop screw 16 symmetries are installed at mount 13's both sides terminal surface, stop screw 16 passes mount 13 screw thread and screws up the inboard in spacing hole 15, be favorable to fixed writing board 1.

The top of the writing board 1 is provided with two sliding rails 17, the outer side of each sliding rail 17 is connected with a sliding frame 18 in a sliding mode, the inner side of each sliding frame 18 is connected with two clamping sliding rods 19 in a sliding mode, the two clamping sliding rods 19 are symmetrically arranged at the top of the corresponding sliding frame 18 to facilitate clamping of books, the outer sides of the clamping sliding rods 19 are sleeved with clamping springs 20, and the bottom ends of the clamping sliding rods 19 are provided with pressing boards 21.

The working principle and the using process of the utility model are as follows: firstly, before a student uses the protective frame, the positioning threaded rod 5 is firstly unscrewed, so that the sliding rod 3 slides to a position suitable for the height of the student, then the positioning threaded rod 5 penetrates through the lifting groove plate 2 and is screwed into the corresponding positioning threaded hole 4, so that the height of the sliding rod 3 is fixed, the student can adapt to the use of students with different heights, if the student bends down during the use, the chin or the chest of the student presses the rubber pad 9 downwards, so that the contact switch 10 is triggered to turn on the warning lamp 11, and the student is reminded of sitting upright;

then, when reading, the student can slide the sliding frame 18 on the outer side of the sliding rail 17 so as to move the sliding frame 18 to the upper side of the book, then the student can pull the pressing plate 21 so as to compress the clamping spring 20, then the book is placed at the bottom position of the pressing plate 21, then the pressing plate 21 is loosened, and the pressing plate 21 is driven under the elastic force of the clamping spring 20 so as to clamp the book, so that the student does not need to hold the book while writing, thereby preventing the student from being in disorder of hands and feet, ensuring the writing of the student with a special mind, and ensuring the work quality;

finally, when people do not need to use the protection frame, the limiting screw rods 16 on the two sides can be unscrewed, so that the position limitation of the limiting screw rods 16 on the writing board 1 is removed, then the writing board 1 can be rotated on the inner side of the bearing 14, so that the back of the writing board 1 is turned to the top, the occupation of the protection frame on the desktop is reduced, and the practicability of the block protection frame is further improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A multi-functional eyesight protection fender bracket, is including writing board (1), its characterized in that: the writing board is characterized in that a lifting groove plate (2) is installed on the positive end face of the writing board (1), a sliding rod (3) is connected to the inner side of the lifting groove plate (2) in a sliding mode, a positioning threaded hole (4) is formed in the positive end face of the sliding rod (3), a positioning threaded rod (5) is connected to the inner side of the lifting groove plate (2) in a threaded mode, a top plate (6) is installed at the top end of the sliding rod (3), a reset sliding rod (7) is connected to the inner side of the top plate (6) in a sliding mode, a supporting spring (8) is sleeved on the outer side of the reset sliding rod (7), a rubber pad (9) is installed at the top end of the reset sliding rod (7), a contact switch (10) is installed at the top end of the top plate (6), and a warning lamp (11) is arranged at the top end of the top plate (6);

write the both sides terminal surface of board (1) and all weld rotating pin (12), mount (13) have been cup jointed in the outside of writing board (1), the inboard and the corresponding position department embedding of rotating pin (12) of mount (13) have bearing (14), spacing hole (15) have all been seted up to the both sides terminal surface of writing board (1), the inboard threaded connection in spacing hole (15) has stop screw (16).

2. A multifunctional vision protection protector frame as defined in claim 1, wherein: a plurality of has been seted up in location screw hole (4), and the positive terminal surface at slide bar (3) is seted up to a plurality of location screw hole (4) equidistance, location threaded rod (5) pass lifting groove board (2) threaded connection in the inboard of location screw hole (4).

3. A multifunctional vision protection protector frame as defined in claim 1, wherein: the rotating pin (12) is embedded in the inner side of the bearing (14), and the writing board (1) is rotatably connected with the fixed frame (13) through the rotating pin (12) and the bearing (14).

4. A multifunctional vision protection protector frame as defined in claim 1, wherein: the limiting screw rods (16) are arranged in two numbers, the two limiting screw rods (16) are symmetrically arranged on the end faces of the two sides of the fixing frame (13), the limiting screw rods (16) penetrate through the fixing frame (13) and are screwed on the inner side of the limiting holes (15), and the control end of the warning lamp (11) is electrically connected with the contact switch (10).

5. A multifunctional vision protection protector frame as defined in claim 1, wherein: slide rail (17) are installed on the top of writing board (1), the outside sliding connection of slide rail (17) has carriage (18), the inboard sliding connection of carriage (18) has the tight slide bar (19) of clamp, clamp spring (20) have been cup jointed in the outside that presss from both sides tight slide bar (19), pressboard (21) are installed to the bottom that presss from both sides tight slide bar (19).

6. A multifunctional vision protection protector frame as defined in claim 5, wherein: the number of the clamping slide bars (19) is two, and the two clamping slide bars (19) are symmetrically arranged at the top of the sliding frame (18).

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