Myopia prevention reminding device with eyeball movement tracking function

Abstract

The invention relates to the field of shortsightedness prevention, in particular to a shortsightedness prevention reminding device with an eyeball movement tracking function, which comprises a study desk body, two diagonally arranged mounting blocks are fixedly connected to the rear end of the top of the study desk body, and eyeball tracking cameras with adjustable inclination angles are rotatably connected to the front ends of the mounting blocks respectively; two lifting supporting legs are fixedly connected to the bottom of the learning table body, a mounting groove is formed in the learning table body, a lifting adjusting assembly and an inclination angle adjusting assembly are connected into the mounting groove, a driving motor and a clutch assembly are fixedly connected into the mounting groove, and the driving motor is connected with the clutch assembly. The clutch assembly is connected with the inclination angle adjusting assembly and the lifting adjusting assembly, the controller is electrically connected with the lifting adjusting assembly, the clutch assembly and the inclination angle adjusting assembly, the eyeball movement tracking technology can be combined with a learning table, students can be effectively assisted in cultivating good sitting postures, and the myopia prevention reminding effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of myopia prevention, and in particular to a myopia prevention reminder device with eye movement tracking. Background Art

[0002] Myopia refers to the blurred vision caused by parallel light rays passing through the eye's refractive system and focusing in front of the retina. It is a type of refractive error. Blurred vision at a distance and clear vision at close range are the most classic symptoms of myopia. Primary and secondary school students are faced with long-term textbook homework, and long-term hunching and lowering of the head when writing will cause eye fatigue, which in turn leads to myopia. Therefore, in order to enable students to maintain a good sitting posture while studying, parents will buy study tables for students to correct their sitting posture. However, these study tables can only provide students with a correct sitting posture range and cannot observe students' sitting posture at all times. Therefore, when correcting sitting posture, it is mainly necessary to rely on students' self-consciousness and parents' reminders. With the development of eye movement tracking technology, by monitoring and analyzing eye movement trajectories through eye movement tracking technology to track students' line of sight direction, gaze point and eye movement trajectories, students' eye usage can be observed in real time, which helps to remind students of their bad sitting posture and assist them in correcting their bad sitting posture. Summary of the Invention

[0003] The purpose of the present invention is to provide a myopia prevention reminder device with eye movement tracking. The device can combine eye movement tracking technology with a study table to effectively assist students in developing a good sitting posture and achieve the effect of myopia prevention reminder.

[0004] The purpose of the present invention is to provide a myopia prevention reminder device with eye movement tracking, comprising a study table body, two diagonally arranged mounting blocks fixedly connected to the top rear end of the study table body, eye tracking cameras with adjustable tilt angles are rotatably connected to the front ends of the mounting blocks, two lifting legs are fixedly connected to the bottom of the study table body, a mounting groove is provided in the study table body, a lifting adjustment component for adjusting the height of the lifting legs and a tilt adjustment component for controlling the tilt angle of the eye tracking camera are connected in the mounting groove, a drive motor and a clutch component are fixedly connected in the mounting groove, the drive motor is connected to the clutch component, the clutch component is respectively connected to the tilt adjustment component and the lifting adjustment component, and the controller is respectively electrically connected to the lifting adjustment component, the clutch component and the tilt adjustment component.

[0005] Preferably, the clutch assembly includes a two-way clutch claw, which is spline-connected to the output shaft of the drive motor, and the left and right sides of the two-way clutch claw are respectively engaged with the first clutch claw and the second clutch claw, the left side of the first clutch claw is coaxially fixedly connected to the second transmission shaft, the radial surface of the second transmission shaft is rotatably connected to the mounting seat, the mounting seat is fixedly connected to the mounting groove, the other end of the second transmission shaft is connected to the second transmission assembly, the second transmission assembly is connected to the lifting adjustment assembly, the second clutch claw is connected to the inclination adjustment assembly, and a translation assembly for controlling the left and right displacement of the two-way clutch claw is fixedly connected in the mounting groove, and the translation assembly is fixedly connected to the two-way clutch claw.

[0006] Preferably, the translation assembly includes a connecting ring, which is rotatably connected to the radial surface of the two-way clutch claw, and a connecting rod is fixedly connected to one side of the connecting ring, and the connecting rod is fixedly connected to the telescopic end of the electric push rod fixedly connected in the mounting groove.

[0007] Preferably, the inclination adjustment assembly includes a first transmission shaft, a plurality of mounting seats rotatably connected to the radial surface of the first transmission shaft, and the plurality of mounting seats are respectively fixedly connected to the mounting slots, and the second threaded rods are respectively coaxially fixedly connected at both ends of the first transmission shaft, and the second threaded rod surfaces are respectively threadedly connected with threaded sleeves, and the bottom ends of the threaded sleeves are slidably connected to the mounting slots, and the bottom of the mounting block is longitudinally slidably connected to a rack, and the bottom end of the rack extends into the mounting slot and is hingedly connected to a connecting rod, and the other end of the connecting rod is hinged to the threaded sleeve, and the front ends of the mounting blocks are respectively fixedly connected to splints, and a reversing gear is rotatably connected between the two splints, and the reversing gear is meshed with the rack, and the two sides of the reversing gear are respectively coaxially fixedly connected with mounting frames, and the front end of the mounting frame is fixedly connected to the eye tracking camera, and the radial surface of the first transmission shaft is fixedly connected to the first transmission assembly, and the first transmission shaft is connected to the clutch assembly through the first transmission assembly.

[0008] Preferably, the first transmission assembly includes a driving tooth and a driven tooth, the driving tooth is fixedly connected to the second clutch claw coaxially, the driven tooth is fixedly connected to the first transmission shaft coaxially, and the driving tooth and the driven tooth are meshed with each other.

[0009] Preferably, the lifting leg includes a fixed leg and a lifting leg. The lifting leg is located above the fixed leg and is slidably connected to the fixed leg. The top of the lifting leg is fixedly connected to the lower surface of the study table body. A lifting threaded hole is provided on the top of the fixed leg. A first threaded rod is threadedly connected to the lifting threaded hole. The top of the first threaded rod is rotatably connected to the study table body. At the same time, the top of the first threaded rod on the left side extends into the mounting slot and is connected to the lifting adjustment assembly.

[0010] Preferably, the lifting and lowering adjustment assembly includes a worm gear, which is fixedly connected to the top end of the corresponding first threaded rod coaxially, and one side of the worm gear is rotatably connected to a worm, and the rear end of the worm gear is coaxially fixedly connected to the first bevel gear, and one side of the first bevel gear is meshed with a second bevel gear, and a synchronous shaft is coaxially fixedly connected between the two second bevel gears, and a plurality of mounting seats are rotatably connected to the radial surface of the synchronous shaft, and the plurality of mounting seats are respectively fixedly connected to the mounting slots, and the rear end of the worm gear on the left is fixedly connected to the second transmission assembly, and the worm gear on the left is connected to the clutch assembly through the second transmission assembly, and the front end of the worm gear on the right side extends to the outside of the mounting slot and is coaxially fixedly connected to a handwheel, and the handwheel is used to control the rotation of the worm gear on the right.

[0011] Preferably, the second transmission assembly includes a driving bevel gear and a driven bevel gear, the driving bevel gear is fixedly connected coaxially with the left end of the second transmission shaft, the driven gear is fixedly connected coaxially to the rear end of the worm on the left, and the driving bevel gear and the driven bevel gear are meshed with each other.

[0012] The working principle and usage principle of the present invention are: two eye-tracking cameras are used to track and monitor the students' eyes in real time, thereby realizing the monitoring of the students' eye usage; at the same time, the cooperation of the driving motor, the clutch assembly and the tilt adjustment assembly can enable the students to flip the eye-tracking camera upward when they lower their heads, so that the eye-tracking camera can monitor the students' eye movements; when the students are distracted or the distance between their eyes and the study table body is too close, the clutch assembly is used to connect the driving motor and the lifting adjustment assembly, and then the lifting adjustment assembly is used to control the lifting legs to perform a short distance upward lifting to remind the students that they need to readjust the distance between their eyes and the study table, realizing a reminder to adjust their sitting posture; the controller can analyze and process the images of the two diagonally arranged eye-tracking cameras, so as to facilitate the detection of the distance between the students and the study table body, and avoid the problems of abnormal sitting posture and eye fatigue caused by students lowering their heads for too long.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Compared with the existing technology, the present invention can flip the eye-tracking camera up and down by cooperating with the drive motor, clutch assembly and tilt adjustment assembly, making it convenient for the eye-tracking camera to adjust the angle to detect the movement of students' eyeballs, thereby increasing the shooting range of the eye-tracking camera and avoiding the problem that the eye-tracking camera cannot normally recognize the students' eyes due to students lowering their heads.

[0015] 2. Compared with the existing technology, the present invention uses the cooperation of the driving motor, the clutch assembly and the lifting adjustment assembly to control the adjustment of the lifting legs, so that when students overuse their eyes, the height of the study table body can be raised over a short distance to remind students of their eye conditions, which has the advantage of facilitating students to develop good eye habits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the installation slot of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0018] Figure 3 This is an enlarged structural diagram of the clutch assembly of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0019] Figure 4 This is a schematic structural diagram of the tilt adjustment component of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0020] Figure 5 This is a partial structural diagram of the lifting and adjusting components of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0021] Figure 6 This is an enlarged schematic diagram of the structure at point A of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0022] Figure 7 This is an enlarged schematic diagram of the structure at point B of the myopia prevention and reminder device with eye movement tracking of the present invention.

[0023] Figure 8 This is a cross-sectional view of the lifting leg structure of the myopia prevention reminder device with eye movement tracking of the present invention.

[0024] Explanation of the accompanying symbols: 1. Study table body; 2. Lifting legs; 21. Lifting legs; 22. Fixed legs; 23. First threaded rod; 24. Lifting threaded hole; 3. Mounting block; 4. Mounting slot; 5. Drive motor; 6. Controller; 7. Clutch assembly; 71. Two-way clutch claw; 72. Connecting ring; 73. Connecting rod; 74. Electric push rod; 75. First clutch claw; 76. Second clutch claw; 77. Second transmission shaft; 78. Active cone Gear; 79, driven bevel gear; 8, inclination adjustment assembly; 81, driving gear; 82, driven gear; 83, first transmission shaft; 84, second threaded rod; 85, threaded sleeve; 86, connecting rod; 87, rack; 88, reversing gear; 89, mounting bracket; 9, lifting adjustment assembly; 91, worm; 92, handwheel; 93, first bevel gear; 94, second bevel gear; 95, synchronization shaft; 96, worm gear; 10, eye tracking camera. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the embodiments of the present application easy to understand, the embodiments of the present application are further explained below in combination with diagrams and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present application and are not used to limit the embodiments of the present application.

[0026] according to Figures 1 to 8 As shown, the myopia prevention reminder device with eye movement tracking includes a study table body 1, two diagonally arranged mounting blocks 3 are fixedly connected to the top rear end of the study table body 1, and the front ends of the mounting blocks 3 are rotatably connected to eye tracking cameras 10 with adjustable tilt angles, two lifting legs 2 are fixedly connected to the bottom of the study table body 1, a mounting slot 4 is provided in the study table body 1, a lifting adjustment component 9 for adjusting the height of the lifting legs 2 and a tilt adjustment component 8 for controlling the tilt angle of the eye tracking camera 10 are connected in the mounting slot 4, a drive motor 5 and a clutch component 7 are fixedly connected in the mounting slot 4, the drive motor 5 is connected to the clutch component 7, the clutch component 7 is respectively connected to the tilt adjustment component 8 and the lifting adjustment component 9, and the controller 6 is respectively electrically connected to the lifting adjustment component 9, the clutch component 7 and the tilt adjustment component 8.

[0027] The mounting block 3 is used to mount the eye-tracking camera 10 above the study table body 1. The two diagonally arranged mounting blocks 3 facilitate the two eye-tracking cameras 10 to observe the student's eye movements at the same time, thereby improving the stability of the eye-tracking camera 10 in tracking the student's eyes. The tilt adjustment component 8 can control the eye-tracking camera 10 to flip upward when the student lowers his head, so that the eye-tracking camera 10 can track the student's eyes by changing the upward flipping angle. The drive motor 5 is connected to the clutch component 7. In the initial state, the drive motor 5 is connected to the tilt adjustment component 8 through the clutch component 7, so that the drive motor 5 can control the flipping of the eye-tracking camera 10 through the tilt adjustment component 8. When the student lowers his head for too long and his eye condition deteriorates, the drive motor 5 can control the movement of the lifting adjustment component 9 by switching the clutch component 7. , it is convenient to remind students of their eye conditions by briefly raising the height of the study table body 1 when the students' eyesight is in poor condition, so that students can correct their sitting posture in time and effectively cultivate good eye habits. At the same time, the control of the lifting legs 2 by the lifting adjustment component 9 can not only make the lifting legs 2 rise briefly when it is necessary to remind students of their eye conditions, but also make it convenient for students to actively adjust the height of the study table body 1 according to their own conditions, thereby improving the practicality of the study table body 1. The controller 6 is mainly used to receive real-time images captured by the eye tracking camera 10 and use the eye tracking system to monitor the students' eyes in real time through the controller 6. At the same time, the controller 6 has a built-in computing unit that can calculate the position of the student's eye displacement and send the adjustment signal to the drive motor 5, the clutch component 7 and the tilt adjustment component 8 to adjust the angle of the eye tracking camera 10.

[0028] The two-way clutch pawl 77 is connected to the output shaft of the driving motor 5 by a spline. The two-way clutch pawl 71 connected to the output shaft of the driving motor 5 can not only transmit the rotation of the output shaft of the driving motor 5 to the two-way clutch pawl 71 so that the two-way clutch pawl 71 and the output shaft of the driving motor 5 can rotate axially synchronously, but also can make the two-way clutch pawl 71 displace on the output shaft of the driving motor 5. The left and right sides of the two-way clutch pawl 71 are respectively engaged with the first clutch pawl 75 and the second clutch pawl 76. The two-way clutch pawl 71 that can be displaced left and right facilitates the engagement of the two-way clutch pawl 71 with the first clutch pawl 75 and the second clutch pawl 76 respectively. The left side of the first clutch pawl 75 is coaxially fixedly connected to the second transmission shaft 77. The radial surface of the second transmission shaft 77 is rotatably connected to the mounting seat. The mounting seat is fixedly connected to the mounting slot 4. The other end of the second transmission shaft 77 is connected to the second transmission assembly. When the two-way clutch pawl 71 moves toward the first clutch pawl 75 and engages with the first clutch After the engagement claw 75 is engaged, the first clutch claw 75 can be synchronously controlled to rotate axially under the control of the drive motor 5, and then the rotation of the second transmission shaft 77 can be synchronously controlled by the rotation of the first clutch claw 75. The rotating second transmission shaft 77 can control the movement of the second transmission assembly, so that the second transmission assembly is connected to the lifting adjustment assembly 9 and controls the operation of the lifting adjustment assembly 9. The second clutch claw 76 is connected to the tilt adjustment assembly 8. When the two-way clutch claw 71 moves toward the second clutch claw 76 and engages with the second clutch claw 76, the tilt adjustment assembly 8 can be controlled by the second clutch claw 76 to adjust the flip angle of the eye tracking camera 10. A translation assembly for controlling the left and right displacement of the two-way clutch claw 71 is fixedly connected to the mounting groove 4. The translation assembly is fixedly connected to the two-way clutch claw 71. The translation assembly can be used to control the left and right movement of the two-way clutch claw 71, so that the two-way clutch claw 71 can be engaged with the first clutch claw 75 or the second clutch claw 76 according to the situation.

[0029] When the locking cam 73 is in the unlocked position, the locking cam 73 is in the unlocked position, and the locking cam 73 is in the unlocked position, so that the locking cam 73 is unlocked and the winch pawl 71 is unlocked.

[0030] Preferably, the inclination adjustment assembly 8 includes a first transmission shaft 83, and the radial surface of the first transmission shaft 83 is rotatably connected to a plurality of mounting seats, and the plurality of mounting seats are respectively fixedly connected to the mounting groove 4. The two ends of the first transmission shaft 83 are respectively coaxially fixedly connected to the second threaded rod 84. The first transmission shaft 83 can be rotated in the mounting groove 4 through the plurality of mounting seats, and the two ends of the first transmission shaft 83 are respectively coaxially fixedly connected to the second threaded rod 84, so that the second threaded rods 84 at both ends can be synchronously driven to rotate axially when the first transmission shaft 83 rotates axially. The surface of the second threaded rod 84 is respectively threadedly connected to a threaded sleeve 85, and the bottom end of the threaded sleeve 85 is fixed to the mounting groove 4. The bottom surface of the groove 4 is slidably connected, and the sliding connection between the threaded sleeve 85 and the mounting groove 4 facilitates the control of the threaded sleeve 85 on the surface of the second threaded rod 84 when the second threaded rod 84 rotates. The bottom of the mounting block 3 is longitudinally slidably connected with a rack 87, and the bottom end of the rack 87 extends into the mounting groove 4 and is hinged with a connecting rod 86. The other end of the connecting rod 86 is hinged with the threaded sleeve 85. When the threaded sleeve 85 is axially positioned on the surface of the second threaded rod 84 by the control of the second threaded rod 84, the connecting rod 86 can drive the rack 87 to slide longitudinally at the bottom of the mounting block 3. The front ends of the mounting block 3 are respectively fixedly connected with splints, and a reversing gear is connected between the two splints for common rotation. Wheel 88, reversing gear 88 is meshed with rack 87, and mounting brackets 89 are fixedly connected to the reversing gear 88 on both sides of the coaxial center. The front end of the mounting bracket 89 is fixedly connected to the eye tracking camera 10. When the rack 87 moves up and down in the longitudinal direction, since the rack 87 is meshed with the reversing gear 88, when the rack 87 moves downward, it can drive the reversing rack 87 to rotate counterclockwise, and the counterclockwise rotation can drive the eye tracking camera 10 to flip upward through the mounting brackets 89 on both sides of the splint. Similarly, when the rack 87 moves upward, it can drive the reversing rack 87 to rotate clockwise, and the clockwise rotation can be driven by the splint. The mounting brackets 89 on both sides drive the eye-tracking camera 10 to flip downward, and the radial surface of the first transmission shaft 83 is fixedly connected to the first transmission assembly, and the first transmission shaft 83 is connected to the clutch assembly 7 through the first transmission assembly. The connection between the first transmission assembly and the first transmission shaft 83 is controlled by the clutch assembly 7, which facilitates the drive motor 5 to control the axial rotation of the first transmission shaft 83 through the first transmission assembly, thereby facilitating the adjustment of the tilt angle of the eye-tracking camera 10, avoiding the situation where the eye-tracking camera 10 cannot monitor the student's eye movement due to angle problems caused by the student lowering his head, and improving the stability of the eye-tracking camera 10 in tracking the student's eyes.

[0031] Preferably, the first transmission assembly includes a driving tooth 81 and a driven tooth 82, the driving tooth 81 is fixedly connected to the second clutch claw 76 coaxially, and the driven tooth 82 is fixedly connected to the first transmission shaft 83 coaxially, and the driving tooth 81 and the driven tooth 82 are engaged with each other. The engagement of the driving tooth 81 and the driven tooth 82 facilitates the rotation of the first transmission shaft 83 by the rotation of the second clutch claw 76 after the two-way clutch claw 71 is engaged with the second clutch claw 76, thereby facilitating the adjustment of the angle of the eye tracking camera 10 through the two-way clutch claw 71, the second clutch claw 76 and the first transmission shaft 83.

[0032] The lifting leg 22 is provided with a longitudinal slot, and the fixed leg 22 is slidably connected to the lifting leg 21. The top of the lifting leg 21 is fixedly connected to the lower surface of the study table body 1. At the same time, a longitudinal slot is provided at the bottom end of the lifting leg 21, and the fixed leg 22 is slidably arranged in the longitudinal slot. A lifting threaded hole 24 is provided at the top of the fixed leg 22, and a first threaded rod 23 is threadedly connected to the lifting threaded hole 24. The first threaded rod 23 is located in the longitudinal slot of the lifting leg 21, and the top end of the first threaded rod 23 is rotatably connected to the study table body 1. At the same time, the top end of the first threaded rod 23 on the left side extends into the mounting slot 4 and is connected to the lifting adjustment component 9. The operation of the lifting adjustment component 9 can drive the first threaded rod 23 to rotate axially, and when the first threaded rod 23 rotates, it is convenient for the lifting leg 21 to drive the study table body 1 to adjust the height up and down by cooperating with the lifting threaded hole 24.

[0033] Preferably, the lifting adjustment assembly 9 includes a worm gear 96, which is fixedly connected to the top of the corresponding first threaded rod 23 coaxially, and one side of the worm gear 96 is rotatably connected to the worm 91, and the rear end of the worm 91 is fixedly connected to the first bevel gear 93 coaxially, and the first bevel gear 93 is meshed with a second bevel gear 94 on one side, and a synchronous shaft 95 is fixedly connected coaxially between the two second bevel gears 94. The radial surface of the synchronous shaft 95 is rotatably connected to a plurality of mounting seats, and the plurality of mounting seats are fixedly connected to the mounting groove 4, respectively. The cooperation of the first bevel gear 93, the second bevel gear 94 and the synchronous shaft 95 facilitates the axis movement of any one of the two worms 91 When the two worms 91 rotate in the same direction, the other worm 91 is synchronously driven to rotate in the axial direction. The simultaneous rotation of the two worms 91 drives the corresponding worm wheel 96 to rotate, and then the rotation of the worm wheel 96 drives the first threaded rod 23 corresponding to the worm wheel 96 to rotate, and finally the synchronous control of the two lifting legs 2 to adjust the height of the study table body 1 is achieved, which increases the lifting and adjustment stability of the lifting adjustment component 9 when the lifting legs 2 are used to adjust the height of the study table body 1, and avoids the study table body 1 from shaking during the lifting and adjustment process. The rear end of the worm 91 on the left is fixedly connected to the second transmission component, and the worm 91 on the left is connected to the clutch component through the second transmission component. The two-way clutch claw 71 is connected with the first clutch claw 75, and when the two-way clutch claw 71 is engaged with the first clutch claw 75, the rotation of the first clutch claw 75 can drive the second transmission assembly to operate, and the operation of the second transmission assembly can control the worm 91 on the left side of the mounting groove 4 to rotate axially. The rotation of the left worm 91 is then controlled by the synchronous shaft 95 to control the rotation of the right worm 91, thereby adjusting the height of the study table body 1. The front end of the worm 91 on the right side extends to the outside of the mounting groove 4 and is coaxially fixedly connected to a handwheel 92. The handwheel 92 is used to control the rotation of the worm 91 on the right side. When the height of the study table body 1 needs to be manually adjusted, the student can manually adjust the height of the study table body 1. By turning the handwheel 92, the worm 91 on the right side of the mounting groove 4 is driven to rotate by the handwheel 92, and the rotation of the right worm 91 is coordinated with the synchronization shaft 95 to synchronously drive the rotation of the left worm 91 in the mounting groove 4, so that the two worms 91 rotate synchronously. The two synchronously rotating worms 91 can then adjust the height of the study table body 1. The second transmission component can cooperate with the clutch component 7 to realize the need to briefly raise the height of the study table body 1 to remind students to correct their sitting posture, so as to avoid the problem of eye fatigue caused by students lowering their heads for too long. At the same time, the handwheel 92 can enable students to actively adjust the height of the study table body 1 according to their own height requirements.

[0034] Preferably, the second transmission assembly includes a driving bevel gear 78 and a driven bevel gear 79. The driving bevel gear 78 is coaxially fixedly connected to the left end of the second transmission shaft 77, and the driven gear 82 is coaxially fixedly connected to the rear end of the worm 91 located on the left side. The driving bevel gear 78 and the driven bevel gear 79 mesh with each other. Since the driving bevel gear 78 and the driven bevel gear 79 are meshed, and the driving bevel gear 78 is coaxially fixedly connected to the second transmission shaft 77, the driving bevel gear 78 can drive the driven bevel gear 79 at the rear end of the left worm 91 to rotate when the second transmission shaft 77 rotates axially, thereby controlling the axial rotation of the left worm 91, and the rotation of the left worm 91 further drives the rotation of the right worm 91 through the synchronous shaft 95, thereby realizing the synchronous control of the lifting legs 2 to adjust the height of the study table body 1.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A myopia prevention and reminder device with eye movement tracking, comprising a study table body (1), characterized in that: The top rear end of the study table body (1) is fixedly connected to two diagonally arranged mounting blocks (3), the front ends of the mounting blocks (3) are rotatably connected to eye-tracking cameras (10) capable of adjusting the tilt angle, the bottom of the study table body (1) is fixedly connected to two lifting legs (2), a mounting slot (4) is provided in the study table body (1), a lifting adjustment component (9) for adjusting the height of the lifting legs (2) and a tilt adjustment component (8) for controlling the tilt angle of the eye-tracking camera (10) are connected in the mounting slot (4), a driving motor (5) and a clutch component (7) are fixedly connected in the mounting slot (4), the driving motor (5) is connected to the clutch component (7), the clutch component (7) is respectively connected to the tilt adjustment component (8) and the lifting adjustment component (9), and the controller (6) is respectively electrically connected to the lifting adjustment component (9), the clutch component (7) and the tilt adjustment component (8).

2. The myopia prevention and reminder device with eye movement tracking according to claim 1, characterized in that: The clutch assembly (7) includes a bidirectional clutch claw (71), which is spline-connected to the output shaft of the drive motor (5). The left and right sides of the bidirectional clutch claw (71) are respectively engaged with a first clutch claw (75) and a second clutch claw (76). The left side of the first clutch claw (75) is fixedly connected to a second transmission shaft (77) coaxially. The radial surface of the second transmission shaft (77) is rotatably connected to a mounting seat. The mounting seat is fixedly connected to the mounting groove (4). The other end of the second transmission shaft (77) is connected to a second transmission assembly. The second transmission assembly is connected to the lifting adjustment assembly (9). The second clutch claw (76) is connected to the tilt adjustment assembly (8). A translation assembly for controlling the left and right displacement of the bidirectional clutch claw (71) is fixedly connected in the mounting groove (4). The translation assembly is fixedly connected to the bidirectional clutch claw (71).

3. The myopia prevention and reminder device with eye movement tracking according to claim 2, characterized in that: The translation assembly includes a connecting ring (72) which is rotatably connected to the radial surface of the two-way clutch claw (71); a connecting rod (73) is fixedly connected to one side of the connecting ring (72); and the connecting rod (73) is fixedly connected to the telescopic end of an electric push rod (74) fixedly connected to the mounting groove (4).

4. The myopia prevention and reminder device with eye movement tracking according to claim 3, characterized in that: The tilt adjustment assembly (8) includes a first transmission shaft (83), a plurality of mounting seats are rotatably connected to the radial surface of the first transmission shaft (83), and the plurality of mounting seats are respectively fixedly connected to the mounting groove (4). The two ends of the first transmission shaft (83) are respectively coaxially fixedly connected to the second threaded rod (84), the surface of the second threaded rod (84) is respectively threadedly connected to the threaded sleeve (85), the bottom end of the threaded sleeve (85) is slidably connected to the mounting groove (4), the bottom of the mounting block (3) is longitudinally slidably connected to the rack (87), the bottom end of the rack (87) extends into the mounting groove (4) and is hinged to the connecting rod (86) ), the other end of the connecting rod (86) is hinged to the threaded sleeve (85), the front end of the mounting block (3) is fixedly connected with a clamping plate, and a reversing gear (88) is connected between the two clamping plates for common rotation, the reversing gear (88) is meshed with the rack (87), and the two sides of the reversing gear (88) are coaxially fixedly connected with a mounting frame (89), the front end of the mounting frame (89) is fixedly connected to the eye tracking camera (10), the radial surface of the first transmission shaft (83) is fixedly connected with the first transmission assembly, and the first transmission shaft (83) is connected to the clutch assembly (7) through the first transmission assembly.

5. The myopia prevention and reminder device with eye movement tracking according to claim 4, characterized in that: The first transmission assembly includes a driving tooth (81) and a driven tooth (82), wherein the driving tooth (81) is fixedly connected to the second clutch claw (76) coaxially, and the driven tooth (82) is fixedly connected to the first transmission shaft (83) coaxially, and the driving tooth (81) and the driven tooth (82) are meshed with each other.

6. The myopia prevention and reminder device with eye movement tracking according to claim 1, 2, 3, 4 or 5, characterized in that: The lifting leg (2) comprises a fixed leg (22) and a lifting leg (21), the lifting leg (21) is located above the fixed leg (22) and the lifting leg (21) is slidably connected to the fixed leg (22), the top of the lifting leg (21) is fixedly connected to the lower surface of the study table body (1), a lifting threaded hole (24) is provided on the top of the fixed leg (22), a first threaded rod (23) is threadedly connected to the lifting threaded hole (24), the top of the first threaded rod (23) is rotatably connected to the study table body (1), and the top of the first threaded rod (23) on the left side extends into the mounting groove (4) and is connected to the lifting adjustment component (9).

7. The myopia prevention and reminder device with eye movement tracking according to claim 6, characterized in that: The lifting adjustment assembly (9) includes a worm gear (96), which is fixedly connected to the top of the corresponding first threaded rod (23) coaxially. One side of the worm gear (96) is rotatably connected to a worm (91). The rear end of the worm (91) is coaxially fixedly connected to a first bevel gear (93). One side of the first bevel gear (93) is meshed with a second bevel gear (94). A synchronous shaft (95) is coaxially fixedly connected between the two second bevel gears (94). The radial surface of the synchronous shaft (95) is rotatably connected to a plurality of mounting seats. The plurality of mounting seats are fixedly connected to the mounting groove (4). The rear end of the worm (91) on the left is fixedly connected to the second transmission assembly. The worm (91) on the left is connected to the clutch assembly (7) through the second transmission assembly. The front end of the worm (91) on the right extends to the outside of the mounting groove (4) and is coaxially fixedly connected to a hand wheel (92). The hand wheel (92) is used to control the rotation of the worm (91) on the right.

8. The myopia prevention and reminder device with eye movement tracking according to claim 7, characterized in that: The second transmission assembly includes a driving bevel gear (78) and a driven bevel gear (79), wherein the driving bevel gear (78) is fixedly connected to the left end of the second transmission shaft (77) coaxially, and the driven gear (82) is fixedly connected to the rear end of the worm (91) on the left side coaxially, and the driving bevel gear (78) and the driven bevel gear (79) are meshed with each other.

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