Anti-myopia device with distance control function

Abstract

The utility model relates to an anti-myopia device with a distance control function, which belongs to the field of anti-myopia, and comprises a U-shaped plate, wherein a clamping member is arranged inside the U-shaped plate, and a lifting mechanism is arranged on the top of the U-shaped plate; the clamping member comprises a clamping plate, and a threaded rod is fixedly connected to the bottom of the clamping plate, and the threaded rod is threadedly connected to the inside of the U-shaped plate. The anti-myopia device with a distance control function can clamp the U-shaped plate at the edge of a table to be used, and then turn the hand wheel to drive the threaded rod to rotate, so that the clamping plate can be pressed against the bottom of the table, so that the device can be conveniently fixed on the table to be used, and the setting of the adjustment mechanism can facilitate the adjustment of the height and tilt angle of the support rod according to the height of the user, and the distance between the user and the table can be controlled by supporting the support rod at the chest of the user. The device is small in size, portable, and convenient to use in different environments.

Description

Technical Field

[0001] The utility model relates to the technical field of myopia prevention, in particular to an myopia prevention device with a distance control function. Background Art

[0002] According to Chinese patent publication number CN216358411 U, an anti-myopia device with a distance control function includes a box body, a first avoidance groove is opened on the top of the box body, a first rack is gap-connected in the first avoidance groove, a first support plate is fixedly connected to the top of the first rack, two second connecting plates and two first connecting plates are fixedly connected to the bottom inner wall of the box body, a second gear is movably connected between the two first connecting plates, and the second gear is meshed with the first rack, and a second avoidance groove is opened on one side of the box body.

[0003] This announcement sets an adjustable first support plate and a second support plate inside the box. Although it is convenient to adjust the different sizes according to the growth stages of students, the device is large in size. When not in use, the first support plate and the second support plate will occupy a large indoor space. Moreover, the anti-myopia device can only be used when using the table, which is inconvenient to use in different environments and has limitations. Therefore, an anti-myopia device with a distance control function is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an anti-myopia device with a distance control function, which has the advantages of small size, good portability and suitability for use in different environments, and solves the problems of large size, inconvenience in use in different environments and limitations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an anti-myopia device with a distance control function, comprising a U-shaped plate, a clamping piece is arranged inside the U-shaped plate, and a lifting mechanism is arranged on the top of the U-shaped plate.

[0006] The clamping member includes a clamping plate, a threaded rod is fixedly connected to the bottom of the clamping plate, the threaded rod is threadedly connected to the inside of the U-shaped plate, one end of the threaded rod away from the clamping plate passes through the U-shaped plate and extends to the outside and is fixed with a handwheel, a slider is fixed to the side wall of the clamping plate, and the slider is slidably connected in a sliding groove opened on the inner wall of the U-shaped plate.

[0007] The lifting mechanism comprises a fixed shell, which is fixedly mounted on the top of the U-shaped plate, an adjusting column is slidably connected inside the fixed shell, a locking piece is arranged on the fixed shell, and a supporting structure is arranged on the top of the adjusting column.

[0008] Furthermore, the locking member includes a rotating block, one side of which is fixedly connected to a threaded column, the threaded column is threadedly connected to the inside of a fixed shell, an end of the threaded column away from the rotating block is fixedly connected to a fixed block, the fixed block is located inside the fixed shell and conflicts with the side wall of the adjusting column.

[0009] Furthermore, the supporting structure includes an inclined rod, a groove is opened on the top of the adjusting column, a rotating rod is fixed inside one end of the inclined rod, the rotating rod is rotatably connected inside the groove, and one end of the rotating rod passes through the adjusting column and extends to the outside and is fixed with a rotating block.

[0010] Furthermore, an installation cavity is provided inside the rotating block, an annular plate is slidably connected inside the installation cavity, a limiting rod is fixedly connected inside the annular plate, one end of the limiting rod passes through the rotating block and extends to the outside and is fixed with a pull ring.

[0011] Furthermore, the outer sleeve of the limiting rod is provided with a spring installed in the installation cavity, and the spring is in conflict with the annular plate.

[0012] Furthermore, a plurality of limiting grooves which are equidistantly distributed around the side wall of the adjusting column are formed, and one end of the limiting rod which is away from the pull ring is inserted into the limiting groove.

[0013] Furthermore, a side of the oblique rod away from the adjusting column is fixedly connected to a support rod, and a flexible pad is fixed to an outer wall of the support rod.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The anti-myopia device with a distance control function clamps the U-shaped plate at the edge of a table that needs to be used, and then turns the hand wheel to drive the threaded rod to rotate, so that the clamping plate can be pressed against the bottom of the table, thereby conveniently fixing the device on the table that needs to be used. The setting of the adjustment mechanism is convenient for adjusting the height and inclination angle of the support rod according to the height of the user. By supporting the support rod at the chest of the user, the distance between the user and the table can be controlled. The device is small in size, portable, and convenient to use in different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 2 The utility model structure Figure 1 A magnified view of the structure at center A;

[0018] Figure 3 The utility model structure Figure 1 A front view of

[0019] Figure 4It is a three-dimensional diagram of the support rod and the diagonal rod of the structure of the utility model;

[0020] Figure 5 It is a partial side sectional view of the diagonal rod of the structure of the utility model.

[0021] In the figure: 1. U-shaped plate; 2. clamping plate; 3. threaded rod; 4. hand wheel; 5. fixed shell; 6. adjusting column; 7. inclined rod; 8. support rod; 9. flexible pad; 10. rotating block; 11. threaded column; 12. fixed block; 13. rotating block; 14. annular plate; 15. limiting rod; 16. spring; 17. pull ring; 18. limiting groove; 19. rotating rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 In this embodiment, an anti-myopia device with a distance control function includes a U-shaped plate 1, a clamping member is arranged inside the U-shaped plate 1, and a lifting mechanism is arranged on the top of the U-shaped plate 1.

[0024] The clamping part includes a clamping plate 2, the bottom of which is fixedly connected to a threaded rod 3, the threaded rod 3 is threadedly connected to the inside of the U-shaped plate 1, the end of the threaded rod 3 away from the clamping plate 2 passes through the U-shaped plate 1 and extends to the outside and is fixed with a handwheel 4, and a slider is fixed to the side wall of the clamping plate 2, and the slider is slidably connected to a slide groove opened on the inner wall of the U-shaped plate 1.

[0025] It should be noted that by clamping the U-shaped plate 1 at the edge of the table to be used, and then turning the hand wheel 4 to drive the threaded rod 3 to rotate, the clamping plate 2 can be pressed against the bottom of the table, thereby facilitating the device to be fixed on the table to be used.

[0026] The lifting mechanism includes a fixed shell 5, which is fixedly installed on the top of the U-shaped plate 1. The interior of the fixed shell 5 is slidably connected with an adjusting column 6. A locking piece is provided on the fixed shell 5. The locking piece includes a rotating block 10. One side of the rotating block 10 is fixedly connected with a threaded column 11. The threaded column 11 is threadedly connected to the interior of the fixed shell 5. The end of the threaded column 11 away from the rotating block 10 is fixedly connected with a fixed block 12. The fixed block 12 is located inside the fixed shell 5 and conflicts with the side wall of the adjusting column 6.

[0027] It should be noted that, by providing a lifting mechanism, it is convenient to adjust the distance that the adjusting column 6 moves out of the fixed housing 5, so as to adjust the appropriate height.

[0028] See also Figure 3 A supporting structure is provided on the top of the adjusting column 6, and the supporting structure includes an inclined rod 7. A groove is opened on the top of the adjusting column 6, and a rotating rod 19 is fixed inside one end of the inclined rod 7. The rotating rod 19 is rotatably connected inside the groove, and one end of the rotating rod 19 penetrates the adjusting column 6 and extends to the outside and is fixed with a rotating block 13. An installation cavity is opened inside the rotating block 13, and an annular plate 14 is slidably connected inside the installation cavity. A limiting rod 15 is fixedly connected inside the annular plate 14, and one end of the limiting rod 15 penetrates the rotating block 13 and extends to the outside and is fixed with a pull ring 17. The outer sleeve of the limiting rod 15 is provided with a spring 16 installed inside the installation cavity, and the spring 16 conflicts with the annular plate 14. A plurality of limiting grooves 18 distributed equidistantly around are opened on the side wall of the adjusting column 6, and one end of the limiting rod 15 away from the pull ring 17 is inserted into the limiting groove 18.

[0029] Among them, a side of the inclined rod 7 away from the adjustment column 6 is fixedly connected to a support rod 8, and an outer wall of the support rod 8 is fixed with a flexible pad 9, which can increase comfort.

[0030] It should be noted that by setting a plurality of limit grooves 18 distributed around the center point of the rotating block 13, the limit rod 15 can correspond to any limit groove 18 when the rotating block 13 rotates, and the limit rod 15 is inserted into the inside of the limit groove 18 to achieve a limiting effect.

[0031] It can be understood that by supporting the support rod 8 at the user's chest, the distance between the user and the table can be controlled by adjusting the angle of the support rod 8, so that the user can maintain a correct sitting posture, thereby preventing myopia. The device is small in size, portable, and easy to use in different environments.

[0032] The working principle of the above embodiment is as follows: when in use, the U-shaped plate 1 is clamped on the edge of the table where it is needed, and then the hand wheel 4 is turned to drive the threaded rod 3 to rotate, so that the clamping plate 2 can be pressed against the bottom of the desktop, thereby conveniently fixing the device on the table where it is needed, and then the adjusting column 6 can be pulled upward or downward to adjust the appropriate height, and then the rotating block 10 is rotated to make the fixing block 12 press against the side wall of the adjusting column 6, so that the adjusting column 6 can be fixed, and then the pull ring 17 is pulled to pull the limiting rod 15 out of the limiting groove 18, and then the rotating block 13 can be rotated to drive the inclined rod 7 to rotate, so as to facilitate the adjustment of the angle of the support rod 8. After releasing the hand, the limiting rod 15 can be inserted into the corresponding limiting groove 18 through the elasticity of the spring 16, and the support rod 8 is supported at the chest of the user. The angle of the support rod 8 can be adjusted to control the distance between the user and the table. The device is small in size, portable, and convenient to use in different environments.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A myopia prevention device with a distance control function, comprising a U-shaped plate (1), characterized in that: A clamping piece is arranged inside the U-shaped plate (1), and a lifting mechanism is arranged on the top of the U-shaped plate (1); The clamping member comprises a clamping plate (2), the bottom of the clamping plate (2) is fixedly connected with a threaded rod (3), the threaded rod (3) is threadedly connected to the inside of the U-shaped plate (1), one end of the threaded rod (3) away from the clamping plate (2) passes through the U-shaped plate (1) and extends to the outside and is fixed with a hand wheel (4), and a sliding block is fixed to the side wall of the clamping plate (2), and the sliding block is slidably connected in a sliding groove opened on the inner wall of the U-shaped plate (1); The lifting mechanism comprises a fixed shell (5), the fixed shell (5) is fixedly mounted on the top of the U-shaped plate (1), an adjusting column (6) is slidably connected inside the fixed shell (5), a locking piece is provided on the fixed shell (5), and a supporting structure is provided on the top of the adjusting column (6).

2. The anti-myopia device with distance control function according to claim 1, characterized in that: The locking member comprises a rotating block (10), one side of the rotating block (10) is fixedly connected to a threaded column (11), the threaded column (11) is threadedly connected to the inside of the fixed housing (5), and one end of the threaded column (11) away from the rotating block (10) is fixedly connected to a fixed block (12), the fixed block (12) is located inside the fixed housing (5) and abuts against the side wall of the adjustment column (6).

3. The anti-myopia device with distance control function according to claim 1, characterized in that: The supporting structure comprises an inclined rod (7), a groove is provided on the top of the adjusting column (6), a rotating rod (19) is fixed inside one end of the inclined rod (7), the rotating rod (19) is rotatably connected inside the groove, and one end of the rotating rod (19) passes through the adjusting column (6) and extends to the outside and is fixed with a rotating block (13).

4. The anti-myopia device with distance control function according to claim 3, characterized in that: The rotating block (13) has an installation cavity formed inside, an annular plate (14) is slidably connected to the inside of the installation cavity, a limiting rod (15) is fixedly connected to the inside of the annular plate (14), and one end of the limiting rod (15) passes through the rotating block (13) and extends to the outside and is fixed with a pull ring (17).

5. The anti-myopia device with distance control function according to claim 4, characterized in that: The outer sleeve of the limiting rod (15) is provided with a spring (16) installed in the installation cavity, and the spring (16) is in conflict with the annular plate (14).

6. The anti-myopia device with distance control function according to claim 4, characterized in that: The side wall of the adjusting column (6) is provided with a plurality of limiting grooves (18) which are equidistantly distributed around the side wall, and the end of the limiting rod (15) which is away from the pull ring (17) is inserted into the limiting groove (18).

7. The anti-myopia device with distance control function according to claim 3, characterized in that: A side of the inclined rod (7) away from the adjustment column (6) is fixedly connected to a support rod (8), and a flexible pad (9) is fixed to the outer wall of the support rod (8).

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