Small vision detection device for eye examination

Abstract

The invention discloses a small vision detection device for eye examination, and particularly relates to the technical field of vision detection devices.The small vision detection device comprises a device bottom plate, a vision detection mechanism is arranged at the top of the device bottom plate and comprises a first moving plate, and the first moving plate is arranged at the top of the device bottom plate; the top of the first moving plate is fixedly connected with a moving mounting plate, and a display screen is mounted on the front side of the moving mounting plate. By arranging the vision detection mechanism and the adjusting mechanism, the comprehensiveness of vision detection is improved, the vision definition is detected, the type and degree of refractive errors such as myopia, hyperopia and astigmatism can be accurately diagnosed through a diopter test, whether a vision problem exists or not is determined, and the vision detection accuracy is improved. Meanwhile, some eye diseases possibly influencing vision can be indirectly found through intraocular pressure testing, retina injury and vision loss caused by too high intraocular pressure can be prevented by monitoring changes of the intraocular pressure, the examination effect is good, and vision detection is more comprehensive.

Description

Technical Field

[0001] The present invention relates to the technical field of vision detection devices, and more particularly to a small vision detection device for eye examination. Background Art

[0002] An eye exam is a common medical test used to assess the health of the eyes and diagnose eye diseases. The most common eye exam is a vision test, which is generally performed by using a vision chart or an automatic vision test device to assess the patient's vision level. A vision test is a routine eye exam used to assess a patient's vision level and diagnose visual problems. Through these basic ophthalmic and vision exams, not only can vision problems and eye diseases be detected and diagnosed in a timely manner, but effective treatment and correction recommendations can also be provided to patients to prevent the progression of eye diseases and further deterioration of vision, thereby protecting and improving visual health. Regularly performing these exams is an important means of maintaining good vision and preventing eye diseases.

[0003] At present, when testing the vision of patients, a vision chart is generally used to judge the patient's vision. The vision test is not accurate enough and can easily affect the doctor's judgment. At the same time, the testing method is relatively single and the vision test is not comprehensive enough to determine the type and degree of refractive errors such as myopia, hyperopia, astigmatism, and other eye conditions of the patient. Some large hospitals can use large and precise machines to test eye vision, but their large and precise vision testing equipment is expensive, troublesome to use, and inconvenient. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides a small vision detection device for eye examination to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a small vision detection device for eye examination, comprising a device bottom plate, a vision detection mechanism is arranged on the top of the device bottom plate;

[0006] The vision detection mechanism includes a first movable plate, the first movable plate is arranged on the top of the device bottom plate, a movable mounting plate is fixedly connected to the top of the first movable plate, a display screen is installed on the front side of the movable mounting plate, an ultrasonic sensor is fixedly installed on the top of the mobile mounting plate, a fixed platform is fixedly installed on the side of the top of the device bottom plate away from the first movable plate, a telescopic cylinder is installed inside the fixed platform, a lifting plate is fixedly connected to the top of the telescopic cylinder, a fixed box is fixedly installed on the side of the top of the device bottom plate close to the fixed platform, a fixed shell is fixedly connected to the top of the fixed box, a tonometer is installed on the top of the fixed shell, through observation holes are opened on both side surfaces of the fixed shell, and adjustment mechanisms are arranged inside the fixed shell and the fixed box.

[0007] Preferably, the adjustment mechanism includes a rotating shaft, which is arranged inside the fixed shell and is rotatably connected to the inner wall of the fixed shell. A fixed connecting plate is fixedly connected to the outer side of the rotating shaft, a rotating ring is fixedly connected to the outer side of the fixed connecting plate, and a lens is fixedly installed inside the rotating ring.

[0008] Preferably, a driving pulley is fixedly connected to the outer side of the rotating shaft close to the fixed connecting plate, a driven pulley is arranged at the bottom of the driving pulley, a transmission belt is connected between the driving pulley and the driven pulley, and a rotating rod is fixedly connected inside the driven pulley.

[0009] Preferably, a first motor is arranged at the rear side of the rotating rod, an output end of the first motor is fixedly connected to the rotating rod, and the first motor is installed at the bottom of the inner wall of the fixing box.

[0010] Preferably, the bottom of the first movable plate is slidably connected to the top surface of the device bottom plate, a slide groove is provided on the top surface of the device bottom plate, a slider is fixedly connected to the bottom of the first movable plate, and the slide groove and the slider are slidably connected.

[0011] Preferably, a second motor is installed on the top of the movable mounting plate, an inner cavity is opened inside the movable mounting plate, a threaded rod is fixedly connected to the output end of the second motor, the bottom of the threaded rod passes through the movable mounting plate and extends into the inner cavity, a threaded sleeve is threadedly connected to the outer side of the threaded rod, a connecting slide rod is fixedly connected to the front side of the threaded sleeve, a through slide groove is opened on the front side surface of the movable mounting plate, and the connecting slide rod is slidably connected to the through slide groove.

[0012] Preferably, the front end of the connecting slide rod is fixedly connected to a second movable plate, the front side of the second movable plate is slidably connected to a sliding rod, and the rear side of the sliding rod is fixedly connected to a movable cotton plate.

[0013] Preferably, a connecting spring is sleeved on the outer side of the sliding rod, one end of the connecting spring is fixedly connected to the sliding rod, and the other end of the connecting spring is fixedly connected to the movable cotton plate.

[0014] Preferably, a protective cover is hinged on one side of the device base plate, a fixed sleeve is fixedly installed on one side of the protective cover, a movable clamping rod is slidably connected inside the fixed sleeve, a fixed clamping sleeve is fixedly connected on one side of the device base plate, and the movable clamping rod and the fixed clamping sleeve match each other.

[0015] Preferably, a chin support groove is provided on the top surface of the lifting plate, and the number of the telescopic cylinders is set to two.

[0016] Technical effects and advantages of the present invention:

[0017] 1. By setting up vision detection and adjustment mechanisms, the patient's vision is tested in many aspects, and the patient's vision is tested by adjusting lenses with different refractive powers, the accuracy of vision detection is greatly improved. At the same time, by replacing multiple refractive lenses for vision testing, refractive testing, intraocular pressure measurement and other tests, the comprehensiveness of vision testing is improved, and visual clarity is tested. The refractive test can accurately diagnose the type and degree of refractive errors such as myopia, hyperopia, and astigmatism, and determine whether there are vision problems. At the same time, some eye diseases that may affect vision can be indirectly discovered through intraocular pressure testing. By monitoring changes in intraocular pressure, retinal damage and vision loss caused by excessive intraocular pressure can be prevented. The inspection effect is good and the vision detection is more comprehensive;

[0018] 2. The second motor drives the threaded rod to rotate, so that the mobile cotton board wipes the dust on the surface of the display screen, improves the clarity of the display screen, avoids the problem that dust affects the clarity of the display screen and thus affects the accuracy of vision detection, and improves the accuracy of vision detection. At the same time, when not in use, the top structure of the bottom plate of the device is protected by a protective cover to avoid dust accumulation on the device, further ensuring the accuracy of vision detection and preventing the test results from being affected by the outside world. At the same time, it is convenient for the device to be stored, moved and carried. At the same time, the lifting plate and the chin rest slot are used for patients to use conveniently. The height of the lifting plate can be adjusted to be suitable for patients with different face lengths.

[0019] 3. In summary, through the mutual influence of the above-mentioned multiple effects, vision can be tested comprehensively at one time, so as to detect vision, diagnose the type and degree of refractive errors such as myopia, hyperopia and astigmatism, monitor intraocular pressure and prevent eye diseases. It greatly improves the comprehensiveness and convenience of vision testing, and can quickly and comprehensively test the patient's vision without the need for large-scale precision equipment. The invention of small-scale vision testing devices has brought new possibilities to the field of eye health examinations, especially in improving the accessibility, convenience and economy of examinations. It has shown significant advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the bottom plate of the device of the present invention.

[0022] Figure 3 It is a schematic diagram of the side cross-sectional structure of the fixing shell and the fixing box of the present invention.

[0023] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the movable installation plate of the present invention.

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the movable installation plate of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the protective cover of the present invention in a closed state.

[0027] Figure 8 For the present invention Figure 6 Enlarged structural diagram at A in the middle.

[0028] The accompanying drawings are marked as follows: 1. device base plate; 2. first movable plate; 3. movable mounting plate; 4. display screen; 5. ultrasonic sensor; 6. fixed table; 7. telescopic cylinder; 8. lifting plate; 9. chin rest groove; 10. fixed box; 11. fixed shell; 12. tonometer; 13. through observation hole; 14. rotating shaft; 15. fixed connecting plate; 16. rotating ring; 17. lens; 18. driving pulley; 19. driven pulley; 20. transmission belt; 21. rotating rod; 22. first motor; 23. slide groove; 24. slider; 25. second motor; 26. inner cavity; 27. threaded rod; 28. threaded sleeve; 29. ​​connecting slide rod; 30. through slide groove; 31. second movable plate; 32. sliding rod; 33. connecting spring; 34. moving cotton plate; 35. protective cover; 36. fixed sleeve; 37. moving clamping rod; 38. fixed clamping sleeve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1-8 A small vision detection device for eye examination shown in the figure comprises a device base plate 1, and a vision detection mechanism is arranged on the top of the device base plate 1;

[0031] The vision detection mechanism includes a first movable plate 2, which is arranged on the top of the device base plate 1, a movable mounting plate 3 is fixedly connected to the top of the first movable plate 2, a display screen 4 is installed on the front side of the movable mounting plate 3, an ultrasonic sensor 5 is fixedly installed on the top of the mobile mounting plate 3, a fixed platform 6 is fixedly installed on the side of the top of the device base plate 1 away from the first movable plate 2, a telescopic cylinder 7 is installed inside the fixed platform 6, a lifting plate 8 is fixedly connected to the top of the telescopic cylinder 7, a fixed box 10 is fixedly installed on the side of the top of the device base plate 1 close to the fixed platform 6, a fixed shell 11 is fixedly connected to the top of the fixed box 10, a tonometer 12 is installed on the top of the fixed shell 11, observation holes 13 are opened on both side surfaces of the fixed shell 11, and adjustment mechanisms are arranged inside the fixed shell 11 and the fixed box 10.

[0032] As attached Figure 3 As shown, the adjustment mechanism includes a rotating shaft 14, which is arranged inside the fixed shell 11, and is rotatably connected to the inner wall of the fixed shell 11. A fixed connecting plate 15 is fixedly connected to the outer side of the rotating shaft 14, and a rotating ring 16 is fixedly connected to the outer side of the fixed connecting plate 15. A lens 17 is fixedly installed inside the rotating ring 16. A driving pulley 18 is fixedly connected to the side of the outer side of the rotating shaft 14 close to the fixed connecting plate 15, and a driven pulley 19 is arranged at the bottom of the driving pulley 18. A transmission belt 20 is transmission-connected between the driving pulley 18 and the driven pulley 19, and a rotating rod 21 is fixedly connected inside the driven pulley 19. A first motor 22 is arranged on the rear side of the rotating rod 21, and the output end of the first motor 22 is fixedly connected to the rotating rod 21. The first motor 22 is installed at the bottom of the inner wall of the fixed box 10, so as to facilitate the adjustment of lenses 17 with different diopters and make it more convenient to judge the patient's vision diopters.

[0033] As attached Figure 1 , 2 As shown, the bottom of the first movable plate 2 is slidably connected to the top surface of the device bottom plate 1, a slide groove 23 is provided on the top surface of the device bottom plate 1, a slider 24 is fixedly connected to the bottom of the first movable plate 2, and the slide groove 23 and the slider 24 are slidably connected, so that the distance between the display screen 4 and the patient can be measured by the ultrasonic sensor 5 to adjust the distance between the display screen 4 and the patient, thereby achieving the effect of adjusting the focal length.

[0034] As attached Figure 1 , 2As shown in , 4, 5, 6, and 8, a second motor 25 is installed on the top of the mobile mounting plate 3, an inner cavity 26 is opened inside the mobile mounting plate 3, a threaded rod 27 is fixedly connected to the output end of the second motor 25, the bottom of the threaded rod 27 passes through the mobile mounting plate 3 and extends into the inner cavity 26, a threaded sleeve 28 is threadedly connected to the outer side of the threaded rod 27, a connecting slide rod 29 is fixedly connected to the front side of the threaded sleeve 28, a through slide groove 30 is opened on the front side surface of the mobile mounting plate 3, the connecting slide rod 29 is slidably connected to the through slide groove 30, and the front end of the connecting slide rod 29 is fixed A second movable plate 31 is connected, a sliding rod 32 is slidably connected to the front side of the second movable plate 31, a movable cotton plate 34 is fixedly connected to the rear side of the sliding rod 32, a connecting spring 33 is sleeved on the outer side of the sliding rod 32, one end of the connecting spring 33 is fixedly connected to the sliding rod 32, and the other end of the connecting spring 33 is fixedly connected to the movable cotton plate 34, so as to wipe the dust on the surface of the display screen 4, improve the clarity of the display screen 4, avoid the problem that dust affects the clarity of the display screen 4 and thus affects the accuracy of vision detection, and improve the accuracy of vision detection.

[0035] As attached Figure 1 , 7 As shown, a protective cover 35 is hinged on one side of the device base plate 1, a fixed sleeve 36 is fixedly installed on one side of the protective cover 35, a movable clamping rod 37 is slidably connected inside the fixed sleeve 36, and a fixed clamping sleeve 38 is fixedly connected to one side of the device base plate 1, the movable clamping rod 37 matches the fixed clamping sleeve 38, and the top structure of the device base plate 1 is protected by the protective cover 35 to prevent dust accumulation on the device, while facilitating the storage, movement and carrying of the device.

[0036] As attached Figure 1 , 2 As shown in 4, a cheek support groove 9 is provided on the top surface of the lifting plate 8, and the number of the telescopic cylinders 7 is set to two.

[0037] The first motor 22 is a stepper motor. When current passes through the winding of the motor, a magnetic field is generated. This magnetic field pushes the rotor to rotate to a specific position. By changing the direction and sequence of the current in the winding, the step angle of the rotor can be precisely controlled, thereby achieving precise position control.

[0038] Working principle of the present invention: During use, the small vision testing device for eye examination provided by the present invention pulls the moving card rod 37 to retract the moving card rod 37 into the fixed sleeve 36, and then rotates the protective cover 35 to make the top structure of the device bottom plate 1 leak out. Then, the person performing the vision test puts his chin into the chin support groove 9 provided on the top surface of the lifting plate 8, and adjusts the height of the lifting plate 8 by starting the telescopic cylinder 7, so that the eyes of the tester are aligned with the through observation hole 13 on the surface of the fixed shell 11. By playing the picture of the vision test on the display screen 4, the first motor 22 is started to drive the rotating rod 21 to rotate, and then the rotating rod 21 drives the driven pulley 19 on its outer side to rotate. At the same time, due to the driven pulley 19 and the driving belt A transmission belt 20 is connected between the wheels 18, so that the rotating shaft 14 is driven to rotate through the transmission belt 20 and the active pulley 18, so that the rotating shaft 14 drives the fixed connecting plate 15 to rotate, so that the fixed connecting plate 15 drives the rotating ring 16 to rotate, and the lenses 17 of different degrees are adjusted to penetrate the observation hole 13, and lenses of different degrees are replaced to determine which lens the patient can see most clearly, so as to complete the patient's refractive examination, and at the same time, the ultrasonic sensor 5 is used to measure the distance between the display screen 4 and the patient, and the slider 24 is pulled by the movable mounting plate 3 to slide in the slide groove 23 to adjust the distance between the patient and the display screen 4, so as to complete the patient's vision clarity inspection at different distances, complete the focus detection, and at the same time, the intraocular pressure is measured by the tonometer 12;

[0039] When cleaning and dusting the surface of the display screen 4, the second motor 25 is started, so that the second motor 25 drives the threaded rod 27 at its output end to rotate. At the same time, due to the threaded connection between the threaded rod 27 and the threaded sleeve 28, the threaded sleeve 28 is driven to move, so that the connecting slide bar 29 on the front side of the threaded sleeve 28 slides inside the through slide groove 30, and the second movable plate 31 is driven to move by the connecting slide bar 29, so that the second movable plate 31 drives the movable cotton board 34 to move, so that the movable cotton board 34 cleans the surface of the display screen 4 and wipes the dust. At the same time, the rebound force of the connecting spring 33 on the outer side of the sliding rod 32 makes the movable cotton board 34 press against the surface of the display screen 4, so as to avoid a gap between the movable cotton board 34 and the display screen 4 to affect the wiping effect, and to avoid the problem that dust affects the clarity of the display screen 4 and thus affects the accuracy of vision detection.

[0040] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0041] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0042] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A small vision testing device for eye examination, comprising a device base plate (1), characterized in that: A vision detection mechanism is arranged on the top of the device bottom plate (1); The vision detection mechanism comprises a first movable plate (2), the first movable plate (2) being arranged on the top of a device bottom plate (1), a movable mounting plate (3) being fixedly connected to the top of the first movable plate (2), a display screen (4) being installed on the front side of the movable mounting plate (3), an ultrasonic sensor (5) being fixedly installed on the top of the movable mounting plate (3), a fixed platform (6) being fixedly installed on the side of the top of the device bottom plate (1) away from the first movable plate (2), a telescopic cylinder (7) being installed inside the fixed platform (6), a lifting plate (8) being fixedly connected to the top of the telescopic cylinder (7), a fixed box (10) being fixedly installed on the side of the top of the device bottom plate (1) close to the fixed platform (6), a fixed shell (11) being fixedly connected to the top of the fixed box (10), a tonometer (12) being installed on the top of the fixed shell (11), both side surfaces of the fixed shell (11) being provided with through observation holes (13), and adjustment mechanisms being arranged inside the fixed shell (11) and the fixed box (10).

2. A small vision detection device for eye examination according to claim 1, characterized in that: The adjustment mechanism comprises a rotating shaft (14), the rotating shaft (14) being arranged inside the fixed shell (11), the rotating shaft (14) being rotatably connected to the inner wall of the fixed shell (11), a fixed connecting plate (15) being fixedly connected to the outer side of the rotating shaft (14), a rotating ring (16) being fixedly connected to the outer side of the fixed connecting plate (15), and a lens (17) being fixedly mounted inside the rotating ring (16).

3. A small vision detection device for eye examination according to claim 2, characterized in that: A driving pulley (18) is fixedly connected to the outer side of the rotating shaft (14) near the fixed connecting plate (15), a driven pulley (19) is arranged at the bottom of the driving pulley (18), a transmission belt (20) is connected between the driving pulley (18) and the driven pulley (19), and a rotating rod (21) is fixedly connected inside the driven pulley (19).

4. A small vision detection device for eye examination according to claim 3, characterized in that: A first motor (22) is arranged at the rear side of the rotating rod (21); an output end of the first motor (22) is fixedly connected to the rotating rod (21); and the first motor (22) is mounted at the bottom of the inner wall of the fixing box (10).

5. A small vision detection device for eye examination according to claim 1, characterized in that: The bottom of the first movable plate (2) is slidably connected to the top surface of the device bottom plate (1); a slide groove (23) is provided on the top surface of the device bottom plate (1); a slider (24) is fixedly connected to the bottom of the first movable plate (2); and the slide groove (23) and the slider (24) are slidably connected.

6. A small vision detection device for eye examination according to claim 1, characterized in that: A second motor (25) is installed on the top of the movable mounting plate (3), an inner cavity (26) is opened inside the movable mounting plate (3), a threaded rod (27) is fixedly connected to the output end of the second motor (25), the bottom of the threaded rod (27) passes through the movable mounting plate (3) and extends into the inner cavity (26), a threaded sleeve (28) is threadedly connected to the outer side of the threaded rod (27), a connecting slide rod (29) is fixedly connected to the front side of the threaded sleeve (28), a through slide groove (30) is opened on the front side surface of the movable mounting plate (3), and the connecting slide rod (29) is slidably connected to the through slide groove (30).

7. A small vision detection device for eye examination according to claim 6, characterized in that: The front end of the connecting slide rod (29) is fixedly connected to a second movable plate (31), the front side of the second movable plate (31) is slidably connected to a slide rod (32), and the rear side of the slide rod (32) is fixedly connected to a movable cotton plate (34).

8. A small vision detection device for eye examination according to claim 7, characterized in that: A connecting spring (33) is sleeved on the outside of the sliding rod (32); one end of the connecting spring (33) is fixedly connected to the sliding rod (32); and the other end of the connecting spring (33) is fixedly connected to the movable cotton plate (34).

9. A small vision detection device for eye examination according to claim 1, characterized in that: A protective cover (35) is hingedly connected to one side of the device base plate (1); a fixed sleeve (36) is fixedly installed on one side of the protective cover (35); a movable clamping rod (37) is slidably connected inside the fixed sleeve (36); a fixed clamping sleeve (38) is fixedly connected to one side of the device base plate (1); and the movable clamping rod (37) and the fixed clamping sleeve (38) match each other.

10. A small vision detection device for eye examination according to claim 1, characterized in that: A chin support groove (9) is provided on the top surface of the lifting plate (8), and the number of the telescopic cylinders (7) is set to two.

Images