Anti-cheating vision testing device

Abstract

An anti-cheating vision examination device, including a base plate, the top surface of the base plate is provided with a seat assembly at one end, the seat assembly is provided with a vision correction assembly on one side, and the other end of the base plate is provided with a movable vision examination assembly; The movable vision examination assembly is provided with an electrical box on one side, the electrical box is provided with a controller, and the controller is connected with the seat assembly and the movable vision examination assembly through a circuit; The advantages of the present application are: the person to be examined sits on the seat assembly for examination, and the seat plate height can be adjusted according to the height of the person to be examined, so as to adapt to different persons to be examined; Through the vision correction assembly, the medical staff can correct the myopia, astigmatism and hyperopia of the person to be examined, so as to check the corrected vision; The medical staff can change the orientation of each row of optotypes, so that the person to be examined cannot pass the examination by reciting the optotype table.

Description

Technical Field

[0001] This invention relates to an inspection device, and more particularly to a cheat-proof vision inspection device. Background Technology

[0002] Eye examinations are generally conducted by doctors using eye charts to test patients' vision. Eye charts are charts used to measure visual acuity. Functionally, there are near vision charts and distance vision charts. Eye charts are designed based on the principle of visual angle. Visual acuity tests are generally divided into two categories: distance vision and near vision. Distance vision tests mostly use the international standard eye chart, which consists of multiple rows of "E" letters of different sizes and opening directions.

[0003] Current vision testing devices have fixed-direction optotypes that cannot be rotated. In selection-based physical examinations, examinees can pass the selection process by memorizing the optotype directions, which easily compromises fairness.

[0004] To address the aforementioned issues, a cheat-proof vision testing device is needed to meet the requirements of vision testing. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an anti-cheating vision testing device that can change the orientation of the visual target.

[0006] The objective of this invention is achieved as follows:

[0007] An anti-cheating vision testing device includes a base plate, a seat assembly is provided at one end of the top surface of the base plate, a vision correction component is provided on one side of the seat assembly, and a movable vision testing component is provided at the other end of the base plate; an electrical box is provided on one side of the movable vision testing component, and a controller is installed in the electrical box. The controller is connected to the seat assembly and the movable vision testing component by a circuit.

[0008] Furthermore, the seat assembly includes a vertical plate, a seat plate, an adjustment push rod, armrests, and a stabilizing telescopic rod. A vertical plate is provided at one end of the top surface of the base plate. A seat plate groove is vertically formed in the center of the vertical plate near the base plate. A seat plate slider is slidably connected within the seat plate groove. A seat plate is provided at the outer end of the seat plate slider. An adjustment push rod is provided between the seat plate and the base plate. The output end of the adjustment push rod is fixedly connected to the center of the bottom surface of the seat plate. A stabilizing telescopic rod is provided between the corner of the bottom surface of the seat plate and the base plate. Armrests are provided on both sides of the top surface of the seat plate. A seat plate raising button and a seat plate lowering button are installed on one side of the electrical box. The controller is connected to the seat plate raising button, the seat plate lowering button, and the adjustment push rod via electrical circuits.

[0009] Furthermore, the vision correction assembly includes a first linear motor platform, a mounting plate, a mounting rod, an extension plate, a limiting plate, a connecting rod, a nose bridge, a corrective lens frame, a placement plate, a corrective lens, and a lens handle. The first linear motor platform is mounted on one side of the seat assembly. A mounting plate is mounted on the slider of the first linear motor platform. A mounting rod is mounted on the outer end of the mounting plate away from the first linear motor platform. An extension plate is rotatably connected to the front top of the mounting rod. A pair of limiting plates are provided on the upper front part of the mounting rod to restrict the extension plate to rotate only 180° above the extension plate. A connecting rod is provided at the other end of the extension plate. A nose bridge is provided at the bottom end of the connecting rod. Corrective lens frames are provided on both sides of the nose bridge. Two sets of placement plates are provided inside the corrective lens frames. A slot for taking out and placing the corrective lens is provided through the side wall of the corrective lens frame between the placement plates. A corrective lens is placed between the placement plates. A lens handle is provided on one side of the corrective lens, and the lens handle extends to the outside of the corrective lens frame through the slot.

[0010] Furthermore, the active vision testing assembly includes a testing box, a motor, a multi-faceted roller, a mating roller, and a flexible detection plate. The testing box is located at the end of the base plate away from the seat assembly. The testing box is a hollow box structure with an open top surface. A box cover is hinged to the top surface of the testing box. A testing window is provided through the side wall of the testing box near the seat assembly. A motor is installed on the upper part of one side of the testing box. The output shaft of the motor extends into the interior of the testing box and is provided with a multi-faceted roller. The other end of the multi-faceted roller is rotatably connected to the inner cavity of the testing box. A mating roller is rotatably connected to the lower part of the inner cavity of the testing box. The multi-faceted roller and the mating roller are covered with a flexible detection plate. Several rows of visual target components are provided on the flexible detection plate.

[0011] The electrical box is equipped with a target raising button and a target lowering button on one side. The controller is connected to the target raising button, the target lowering button, and the motor via circuitry.

[0012] Furthermore, the target assembly includes a rotating shaft, a target plate, and a target. The flexible detection plate has several mounting holes at equal intervals. A rotating shaft is rotatably connected to the mounting holes. A target plate is disposed at the outer end of the rotating shaft, and a target is disposed at the outer end of the target plate.

[0013] Furthermore, the inspection box is equipped with a target rotation assembly.

[0014] Furthermore, the target rotation assembly includes a fixed plate, a rotation motor, a mounting box, an electromagnet, and an iron core. The inspection box has a fixed plate inside, which is at the same height as the inspection window. Several rotation motors are mounted on the side of the fixed plate facing the inspection window. The number of rotation motors is the same as the number of target assemblies in a row. The output end of the rotation motor is provided with a mounting box, and an electromagnet is provided at the outer end of the mounting box. An iron core is provided at the central axis of the rotating shaft, and the iron core extends to the outside of the rotating shaft.

[0015] The electrical box is equipped with a target forward rotation button and a target reverse rotation button on one side. The controller is connected to the target forward rotation button, the target reverse rotation button, and the rotating motor via circuitry.

[0016] Advantages of this invention:

[0017] 1. The person being inspected sits on the seat assembly for the inspection. The seat assembly can be adjusted in height to accommodate different people being inspected.

[0018] 2. With the vision correction component, medical staff can correct myopia, astigmatism, and hyperopia in the examinee in order to check the vision after correction.

[0019] 3. Medical staff can change the orientation of each line of optotypes, making it impossible for the examinee to pass the examination by memorizing the eye chart. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a vision testing device designed to prevent cheating.

[0021] Figure 2 This is a schematic diagram of the seat assembly structure.

[0022] Figure 3 This is a schematic diagram of the vision correction component.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the inspection box.

[0024] Figure 5 This is a partial structural diagram of the inspection box.

[0025] Figure 6 This is a diagram showing the electrical box being opened.

[0026] In the diagram: 1. Base plate, 2. Seat assembly, 3. Vision correction assembly, 4. Active vision testing assembly, 5. Electrical box, 6. Controller, 7. Vertical plate, 8. Seat panel, 9. Adjustment push rod, 10. Armrest, 11. Stabilizing telescopic rod, 12. Seat panel slide, 13. Seat panel slider, 14. Seat panel rise button, 15. Seat panel fall button, 16. First linear motor platform, 17. Mounting plate, 18. Mounting rod, 19. Extension plate, 20. Limiting plate, 21. Connecting rod, 22. Nose bridge, 23. Correction frame, 24. Placement plate, 25. Correction lens, 26. Lens handle 27. Pick-up and drop slot; 28. Correction frame raising button; 29. ​​Correction frame lowering button; 30. Inspection box; 31. Motor; 32. Multi-faceted roller; 33. Matching roller; 34. Flexible inspection plate; 35. Box cover; 36. Inspection window; 37. Target assembly; 38. Target raising button; 39. Target lowering button; 40. Rotating shaft; 41. Target plate; 42. Target; 43. Mounting hole; 44. Target rotation assembly; 45. Fixing plate; 46. Rotating motor; 47. Mounting box; 48. Electromagnet; 49. Iron core; 50. Target forward rotation button; 51. Target reverse rotation button. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0028] This application provides an anti-cheating vision testing device.

[0029] like Figure 1-6 As shown.

[0030] A cheating-proof vision testing device includes a base plate 1, a seat assembly 2 is provided at one end of the top surface of the base plate 1, a vision correction assembly 3 is provided on one side of the seat assembly 2, and an active vision testing assembly 4 is provided at the other end of the base plate 1.

[0031] An electrical box 5 is provided on one side of the seat assembly, and a controller 6 is installed inside the electrical box 5. The controller 6 is preferably a standard PLC from Junchuang Automation Technology Co., Ltd., model JS-68T-D.

[0032] like Figure 2 As shown.

[0033] The seat assembly 2 includes a vertical plate 7, a seat plate 8, an adjustment rod 9, armrests 10, and a stabilizing telescopic rod 11. A vertical plate 7 is provided at one end of the top surface of the base plate 1. A seat plate groove 12 is vertically formed in the center of the vertical plate 7 near the base plate 1. A seat plate slider 13 is slidably connected within the seat plate groove 12. The seat plate 8 is located at the outer end of the seat plate slider 13. An adjustment rod 9 is provided between the seat plate 8 and the base plate 1. The adjustment rod 9 is preferably a multi-stage electric push rod from Beijing Tianyu Innovation Technology Co., Ltd. The output end of the adjustment rod 9 is fixedly connected to the center of the bottom surface of the seat plate 8. The adjustment rod 9 drives the seat plate 8 to move up and down along the seat plate groove 12. A stabilizing telescopic rod 11 is provided between the corner of the bottom surface of the seat plate 8 and the base plate 1 to increase the stability of the seat plate 8 during up and down movement. Armrests 10 are provided on both sides of the top surface of the seat plate 8. The electrical box 5 is equipped with a seat board raising button 14 and a seat board lowering button 15 on one side. The controller 6 is connected to the seat board raising button 14, the seat board lowering button 15, and the adjusting push rod 9 via circuits.

[0034] like Figure 3 As shown.

[0035] The vision correction assembly 3 includes a first linear motor platform 16, a mounting plate 17, a mounting rod 18, an extension plate 19, a limiting plate 20, a connecting rod 21, a nose bridge 22, a corrective lens frame 23, a placement plate 24, corrective lenses 25, and a lens handle 26. The first linear motor platform 16 is mounted on one side of the seat plate 8 in the seat assembly 2. The first linear motor platform 16 is preferably a DGL series dual-rail linear motor platform from Yacobes Precision Electromechanical Co., Ltd., model DGL260-AUM5-S4. A mounting plate 17 is provided on the slider of the first linear motor platform 16. A mounting rod 18 is provided at the outer end of the mounting plate 17 away from the first linear motor platform 16. An extension plate 19 is rotatably connected to the front top of the mounting rod 18. A pair of limiting plates 20 are provided on the upper front part of the mounting rod 18 to restrict the extension plate 19 to rotate only 180° above the limiting plates 20. The other end of the extension plate 20 is provided with a connecting rod 21, and the bottom end of the connecting rod 21 is provided with a bridge 22. Corrective lens frames 23 are provided on both sides of the bridge 22. Two sets of placement plates 24 are provided inside the corrective lens frames 23. A slot 27 is provided through the side wall of the corrective lens frame 23 between the placement plates 24. Corrective lenses 25 are placed between the placement plates 24. Medical personnel select appropriate corrective lenses to correct the vision of the examinee based on their visual acuity, and then check the corrected vision. A lens handle 26 is provided on one side of the corrective lens 25 for easy placement. The lens handle 26 extends to the outside of the corrective lens frame 23 through the slot 27. A corrective lens frame raising button 28 and a corrective lens frame lowering button 29 are installed on one side of the electrical box 5. The controller 6 is connected to the corrective lens frame raising button 28, the corrective lens frame lowering button 29, and the first linear motor platform 16 via electrical circuits.

[0036] like Figure 4 As shown

[0037] The active vision testing assembly 4 includes a testing box 30, a motor 31, a multi-faceted roller 32, a mating roller 33, and a flexible detection plate 34. The testing box 30 is located at the end of the base plate 1 furthest from the seat assembly 2. The testing box 30 is a hollow box structure with an open top surface, and a lid 35 is hinged to the top surface of the testing box 30. A testing window 36 is provided through the side wall of the testing box 30 near the seat assembly 2, allowing the person being tested to perform vision testing by observing the optotypes inside the testing window 36. A motor 31 is mounted on the upper part of one side of the testing box 30. The motor 31 is preferably a stepper motor from Dongguan Bangshuo Motor Co., Ltd., model 57H3P7652A3. The output shaft of the motor 31 extends into the inspection box and is equipped with a multi-faceted roller 32. The other end of the multi-faceted roller 32 is rotatably connected to the inner cavity of the inspection box 30. A mating roller 33 is rotatably connected to the lower part of the inner cavity of the inspection box 30. A flexible detection plate 34 covers the outer side of the multi-faceted roller 32 and the mating roller 33. Several rows of visual target components 37 are provided on the flexible detection plate 34. By rotating the motor 31 in both directions, the flexible detection plate 34 is driven to rotate, thereby causing the detection window 36 to display the visual target components 37 of different sizes, allowing the person being examined to complete the vision test. A visual target raising button 38 and a visual target lowering button 39 are installed on one side of the electrical box 5. The controller 6 is connected to the visual target raising button 38, the visual target lowering button 39, and the motor 31 via circuitry.

[0038] like Figure 5 As shown.

[0039] The optotype assembly 37 includes a rotating shaft 40, an optotype plate 41, and optotypes 42. The flexible detection plate 34 has several equally spaced mounting holes 43. A rotating shaft 40 is rotatably connected within each mounting hole 43. An optotype plate 41 is positioned at the outer end of the rotating shaft 40, and an optotype 42 is positioned at the outer end of the optotype plate 41. The optotypes 42 in each row are of different sizes, corresponding to different visual acuity test results.

[0040] The inspection box 30 is equipped with a target rotation assembly 44. The target rotation assembly 44 includes a fixing plate 45, a rotation motor 46, a mounting box 47, an electromagnet 48, and an iron core 49. The fixing plate 45 is located inside the inspection box 30 and is at the same height as the inspection window 36. Several rotation motors 46 are mounted on the side of the fixing plate 45 facing the inspection window 36. The rotation motors 46 are preferably stepper motors from Dongguan Bangshuo Motor Co., Ltd., model 57H3P7652A3. The number of rotation motors 46 is the same as the number of target assemblies 44 in a row, with each rotation motor 46 corresponding to one target assembly 37. The output end of each rotation motor 46 is equipped with a mounting box 47, and an electromagnet 48 is located at the outer end of the mounting box 47. An iron core 49 is located at the central axis of the rotating shaft 40, extending outside the rotating shaft 40. When the electromagnet 48 is energized, the iron core 49 is attracted to the surface of the electromagnet 48. Driven by the rotating motor 46, the target 42 rotates. Each rotation is a fixed angle, thereby changing the orientation of the target 42, increasing the difficulty of detection, and also serving as an anti-cheating function. A target forward rotation button 50 and a target reverse rotation button 51 are installed on one side of the electrical box 5. The controller 6 is connected to the target forward rotation button 50, the target reverse rotation button 51, the electromagnet 48, and the rotating motor 46 via circuitry.

[0041] When using this invention:

[0042] 1. Move the extension panel to the side away from the seat panel, have the person being examined sit on the seat panel, and then the medical staff press the seat panel raising button and the seat panel lowering button according to the height of the person being examined to adjust the height of the seat panel so that the person being examined's line of sight is level with the viewing window.

[0043] 2. Inquire about the examinee's vision correction status. Based on the actual situation, decide whether to select appropriate corrective lenses for vision correction. If correction is required, move the extension plate to the side closest to the seat panel. Then, select appropriate corrective lenses and place them between the two placement plates. The medical staff presses the corrective lens frame raise button and the corrective lens frame lower button to adjust the height of the corrective lens frame. After adjustment, the examinee places both eyes behind the corrective lens frame.

[0044] 3. Medical staff press the up and down buttons on the vision board, causing the visual window to display optotypes of different sizes for the examinee to identify. Each press of the button moves the vision board exactly the distance of one row of optotypes.

[0045] 4. Medical staff will consider whether to rotate the orientation of the visual target based on the actual situation. To rotate, press the forward rotation button and the reverse rotation button. The controller receives the signal and controls the electromagnet and the rotation motor to start. After the electromagnet starts, it attracts the iron core to the surface. Driven by the rotation motor, the target rotates. Each rotation is a fixed angle, thus changing the orientation of the visual target. After rotation is complete, the visual acuity of the examinee can be checked.

[0046] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0047] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims. It should be understood that this application is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A cheat-proof vision testing device, comprising a base plate, characterized in that: A seat assembly is provided at one end of the top surface of the base plate, a vision correction assembly is provided on one side of the seat assembly, and an active vision testing assembly is provided at the other end of the base plate; An electrical box is provided on one side of the seat assembly, and a controller is installed in the electrical box. The controller is connected to the seat assembly, the vision correction assembly, and the active vision testing assembly via circuitry.

2. The anti-cheating vision testing device according to claim 1, characterized in that: The seat assembly includes a vertical plate, a seat plate, an adjustment push rod, armrests, and a stabilizing telescopic rod. A vertical plate is provided at one end of the top surface of the base plate. A seat plate groove is vertically formed in the middle of the vertical plate near the base plate. A seat plate slider is slidably connected in the seat plate groove. A seat plate is provided at the outer end of the seat plate slider. An adjustment push rod is provided between the seat plate and the base plate. The output end of the adjustment push rod is fixedly connected to the center of the bottom surface of the seat plate. A stabilizing telescopic rod is provided between the corner of the bottom surface of the seat plate and the base plate. Armrests are provided on both sides of the top surface of the seat plate. The electrical box is equipped with a seat rise button and a seat fall button on one side. The controller is connected to the seat rise button, the seat fall button, and the adjustment push rod via circuitry.

3. The anti-cheating vision testing device according to claim 1, characterized in that: The vision correction assembly includes a first linear motor platform, a mounting plate, a mounting rod, an extension plate, a limiting plate, a connecting rod, a nose bridge, a corrective lens frame, a placement plate, a corrective lens, and a lens handle. The first linear motor platform is mounted on one side of the seat assembly. A mounting plate is mounted on the slider of the first linear motor platform. A mounting rod is mounted on the outer side of the mounting plate, away from the first linear motor platform. An extension plate is rotatably connected to the top front of the mounting rod. A pair of limiting plates are provided on the upper front of the mounting rod to restrict the extension plate to rotate only 180° above the extension plate. A connecting rod is provided at the other end of the extension plate. A nose bridge is located at the bottom of the connecting rod. Corrective lens frames are located on both sides of the nose bridge. Two sets of placement plates are located inside the corrective lens frames. A slot for taking out and placing the corrective lens is formed through the side wall of the corrective lens frame between the placement plates. A corrective lens is placed between the placement plates. A lens handle is located on one side of the corrective lens, and the lens handle extends to the outside of the corrective lens frame through the slot. The electrical box is equipped with a corrective lens frame raising button and a corrective lens frame lowering button on one side. The controller is connected to the corrective lens frame raising button, the corrective lens frame lowering button, and the first linear motor platform via circuits.

4. The anti-cheating vision testing device according to claim 1, characterized in that: The active vision testing assembly includes a testing box, a motor, a multi-faceted roller, a mating roller, and a flexible detection plate. The testing box is located at the end of the base plate away from the seat assembly. The testing box is a hollow box structure with an open top surface. A box cover is hinged to the top surface of the testing box. A testing window is provided through the side wall of the testing box near the seat assembly. A motor is installed on the upper part of one side of the testing box. The output shaft of the motor extends into the interior of the testing box and is provided with a multi-faceted roller. The other end of the multi-faceted roller is rotatably connected to the inner cavity of the testing box. A mating roller is rotatably connected to the lower part of the inner cavity of the testing box. The multi-faceted roller and the mating roller are covered with a flexible detection plate. Several rows of visual target components are provided on the flexible detection plate. The electrical box is equipped with a target raising button and a target lowering button on one side. The controller is connected to the target raising button, the target lowering button, and the motor via circuitry.

5. The anti-cheating vision testing device according to claim 4, characterized in that: The target assembly includes a rotating shaft, a target plate, and a target. The flexible detection plate has several mounting holes at equal intervals. A rotating shaft is rotatably connected to the mounting holes. A target plate is disposed at the outer end of the rotating shaft, and a target is disposed at the outer end of the target plate.

6. The anti-cheating vision testing device according to claim 5, characterized in that: The inspection box is equipped with a target rotation assembly.

7. The anti-cheating vision testing device according to claim 6, characterized in that: The target rotation assembly includes a fixed plate, a rotation motor, a mounting box, an electromagnet, and an iron core. The inspection box has a fixed plate inside, which is at the same height as the inspection window. Several rotation motors are mounted on the side of the fixed plate facing the inspection window. The number of rotation motors is the same as the number of target assemblies in a row. The output end of the rotation motor is provided with a mounting box, and the outer end of the mounting box is provided with an electromagnet. An iron core is provided at the central axis of the rotating shaft, and the iron core extends to the outside of the rotating shaft. The electrical box is equipped with a target forward rotation button and a target reverse rotation button on one side. The controller is connected to the target forward rotation button, the target reverse rotation button, the electromagnet, and the rotating motor via circuitry.

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