Self-service handheld eye testing device
Through the eccentric wheel transmission structure and sliding connection design, the problem of inconvenient adjustment of the fundus camera angle in traditional handheld eye testing devices is solved, and the portability and detection accuracy of the self-service handheld eye testing device are realized.
Patent Information
- Application Number
- CN202521438372.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2035-07-10
AI Technical Summary
It is difficult for traditional handheld eye testing devices to accurately adjust the angle of the fundus camera during movement, resulting in poor detection results and inconvenient self-testing in non-medical institution environments.
The eccentric wheel transmission structure is adopted, and the first and second platforms are driven by the motor to drive the fundus camera to approach or away from the eye. Combined with the sliding connection and slider design, the flexible movement and precise adjustment of the fundus camera are achieved.
It improves the shooting convenience and accuracy of the fundus camera, simplifies the mechanical structure, reduces the device size and weight, is easy to carry and operate, and is suitable for use in remote areas.
Smart Images
Figure CN223208396U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of eye testing devices, in particular to a self-service handheld eye testing device. Background Art
[0002] With the aging population and the increasing use of electronic devices in modern life, the incidence of various eye diseases such as myopia, cataracts, and glaucoma continues to rise, and the demand for eye testing has also increased. Traditional eye tests, such as vision tests, usually require professional testers to guide users with a vision chart. This method is not only labor-intensive and time-consuming, but also difficult for users to complete the test independently outside of a medical setting, which cannot meet the daily needs of testing at any time. For people in remote areas or with limited mobility, traveling to a professional institution for eye testing is difficult. Some existing portable eye testing devices are equipped with fundus cameras. When examining the human eye, the fundus camera needs to obtain test data from different angles. Traditional handheld eye testing devices with fundus cameras generally require manual movement of the detection device to achieve the required angle of examination of the fundus camera. Due to the easy shaking caused by hand-held movement, the angle of movement can deviate significantly from the required angle, which can easily affect the test results. In addition, different geographical environments can cause inconvenience in movement. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a self-service handheld eye testing device to solve the problems of the handheld eye testing device proposed in the above background technology, such as the inconvenience of moving the fundus camera, the inability to adjust the position of the fundus camera to the angle required for human eye detection, and the complex structure.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a self-service handheld eye testing device, comprising a shell, in which a fundus camera, a first platform and a second platform are arranged, the fundus camera is connected to the first platform, the first platform and the second platform are slidably connected, a first motor and a first transmission wheel are arranged between the first platform and the second platform, the first motor is fixedly connected to the first platform, one end of the first transmission wheel is keyed to the output end of the first motor, and the other end is slidably connected to the second platform, a first limiting portion for slidingly limiting the first transmission wheel is arranged on the second platform, the first transmission wheel is an eccentric wheel, the first motor rotates with its output end as the rotation axis to drive the first transmission wheel to move along the first limiting portion, and the first platform can cooperate with the first motor to move to drive the fundus camera to move toward / away from the eye position.
[0005] As a further improvement of the present invention, a slit lamp is provided in the housing, and the slit lamp is connected to the first platform and moves synchronously with the first platform.
[0006] As a further improvement of the present invention, the first motor is provided with an output end of the first motor extending toward the first transmission wheel for connecting to the first transmission wheel, the first transmission wheel is provided with a first input end for plugging and mating with the output end of the first motor on the end face facing the first motor, and is provided with a first extension rod for sliding connection to the second platform on the end face facing the second platform, and the first extension rod is slidably connected to the second platform.
[0007] As a further improvement of the present invention, the first limiting portion is a first slide groove set on the second platform corresponding to the position of the first extension rod, the first extension rod is partially inserted in the first slide groove and slides along the length direction of the first slide groove, the outer peripheral wall of the first extension rod is against the inner wall of the slide groove, and the first slide groove is a waist-shaped groove.
[0008] As a further improvement of the present invention, a third platform is further provided in the shell, the third platform is fixedly connected to the shell, a second motor and a second transmission wheel are provided between the third platform and the second platform, the second motor is fixedly connected to the second platform, one end of the second transmission wheel is key-connected with the output end of the second motor, and the other end is slidably connected to the third platform, and a second limiting portion for sliding limiting the second transmission wheel is provided on the third platform. The second transmission wheel is an eccentric wheel, and the second transmission wheel is provided with a second input end for plugging and cooperating with the output end of the second motor on the end surface facing the second motor, and a second extension rod for sliding connection with the third platform on the end surface facing the third platform, the second extension rod is slidably connected to the third platform, the second motor rotates with its output end as the rotation axis to drive the second transmission wheel to move along the second limiting portion, and the second platform can cooperate with the second motor to move to drive the second platform to move left / right toward the eye position.
[0009] As a further improvement of the present invention, the second limiting portion is a second slide groove set on the third platform corresponding to the position of the second extension rod. The second extension rod is partially inserted into the second slide groove and slides along the length direction of the second slide groove. The outer peripheral wall of the second extension rod is against the inner wall of the slide groove, and the second slide groove is a waist-shaped groove.
[0010] As a further improvement of the present invention, a first fixing slot for inserting the first motor is provided on the first platform, and the first motor is fixed to the first fixing slot by bolts after being inserted into the first fixing slot.
[0011] As a further improvement of the present invention, the second platform is provided with a second fixing slot for inserting the second motor, and the second motor is fixed by bolts after being inserted into the second fixing slot.
[0012] As a further improvement of the present invention, at least one sliding block is provided in the housing between the first platform and the second platform and between the second platform and the third platform.
[0013] As a further improvement of the present invention, a slit lamp and two fill lights are further provided in the shell, and the two fill lights are provided corresponding to the left eye and the right eye respectively.
[0014] Compared with the existing technology, the utility model provides a self-service handheld eye testing device with the following beneficial effects: this solution adopts the arrangement of a fundus camera and a dual platform in the shell, so that the fundus camera and the platform can be flexibly moved together, and the eccentric wheel-type first transmission wheel works in conjunction with the first limit part and the first motor to accurately control the first platform to drive the fundus camera close to or away from the eye, so that the shooting distance can be autonomously adjusted by motor drive, adapting to the differences in eye positions of different users, and improving the convenience and accuracy of shooting; the sliding connection of the first and second platforms simplifies the mechanical structure, reduces the size and weight of the device, and is convenient for handheld operation; at the same time, the structure is compact and reasonable, reduces the interference between the components, enhances the stability of the device operation, ensures a smooth fundus shooting process, and is easy to carry and suitable for use in remote areas. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the utility model;
[0016] Figure 2 It is a three-dimensional diagram of the partial structure inside the shell of the utility model;
[0017] Figure 3 This is a structural exploded view of the local structure inside the shell of the utility model.
[0018] Figure numerals: 1. housing; 2. fundus camera; 3. first platform; 4. second platform; 5. first motor; 6. first transmission wheel; 7. first slide; 8. fill light; 9. first input end; 10. first extension rod; 11. third platform; 12. second motor; 13. second transmission wheel; 15. second input end; 16. second extension rod; 17. second slide; 18. first fixed groove; 19. second fixed groove; 20. slider; 21. slit lamp. DETAILED DESCRIPTION
[0019] An embodiment of the present invention is shown in the figure. In order to achieve the above-mentioned purpose, the present invention provides a self-service handheld eye testing device, which includes a shell 1. A fundus camera 2, a first platform 3 and a second platform 4 are provided in the shell 1. The fundus camera 2 is connected to the first platform 3, and the first platform 3 is slidably connected to the second platform 4. A first motor 5 and a first transmission wheel 6 are provided between the first platform 3 and the second platform 4. The first motor 5 is fixedly connected to the first platform 3. One end of the first transmission wheel 6 is key-connected to the output end of the first motor 5, and the other end is slidably connected to the second platform 4. A first limiting portion for slidingly limiting the first transmission wheel 6 is provided on the second platform 4. The first transmission wheel 6 is an eccentric wheel. The first motor 5 rotates with its output end as the rotation axis to drive the first transmission wheel 6 to move along the first limiting portion. The first platform 3 can cooperate with the first motor 5 to move to drive the fundus camera 2 toward / away from the eye position. direction of movement; a slit lamp 21 is provided in the shell 1, and the slit lamp 21 is connected to the first platform 3 and moves synchronously with the first platform 3; the first motor 5 is extended toward the first transmission wheel 6 and is provided with a first output end for connecting to the first transmission wheel 6, and the first transmission wheel 6 is provided with a first input end 9 for plugging and cooperating with the first output end on the end face facing the first motor 5, and a first extension rod 10 for slidingly connecting to the second platform 4 is provided on the end face facing the second platform 4, and the first extension rod 10 is slidably connected to the second platform 4; the first limiting portion is a first slide groove 7 provided on the second platform 4 corresponding to the position of the first extension rod 10, the first extension rod 10 is partially inserted in the first slide groove 7 and slides along the length direction of the first slide groove 7, and the outer peripheral wall of the first extension rod 10 is against the inner wall of the slide groove; a first fixed groove 18 for plugging in the first motor 5 is provided on the first platform 3, the first motor 5 is plugged and matched with the first fixed groove 18, and the first slide groove 7 is a waist-shaped groove.
[0020] When implementing this solution, first, a material that is easy to hold and lightweight is selected to make the housing 1, and sufficient space is reserved inside the housing 1 for installing subsequent components. The fundus camera 2 is installed on the first platform 3. The connection can be ensured to be stable by screw fixation, snap connection, etc., to ensure that the camera does not shake and affect the imaging effect during shooting. This solution preferably adopts the method of fixing the fundus camera 2 to the first platform 3 by screw fixation. Then, a slider 20 structure is set at the corresponding positions of the first platform 3 and the second platform 4, or a guide rod and a guide sleeve are used to cooperate to enable the first platform 3 to slide smoothly on the second platform 4;
[0021] Install the first motor 5 and embed the first motor 5 into the first fixing groove 18 of the first platform 3. Use plug-in fitting to tightly combine the motor with the first platform 3 to prevent the motor from shifting during operation. The first output end of the first motor 5 is directed toward the first transmission wheel 6 to ensure that power can be effectively transmitted. Those skilled in the art can set an elastic layer on the inner wall of the first fixing groove 18 during implementation to avoid damage to the first motor 5 when plugging and fitting with the first fixing groove 18.
[0022] For the first transmission wheel 6, its first input end 9 is plugged into the first output end of the first motor 5. This solution preferably adopts a key connection method, such as a flat key, a semicircular key, a spline, etc. This solution preferably adopts a spline, so that the rotation of the first motor 5 can be accurately transmitted to the first transmission wheel 6; in other solutions, those skilled in the art can also adopt a screw set at the output end of the motor to make it cooperate with the transmission wheel; the first extension rod 10 of the first transmission wheel 6 cooperates with the first slide groove 7 on the second platform 4, and the first extension rod 10 is partially inserted into the first slide groove 7 to ensure that the outer peripheral wall of the first extension rod 10 is against the inner wall of the first slide groove 7, so that the first transmission wheel 6 can slide along the length direction of the first slide groove 7 when rotating. Since the first transmission wheel 6 is an eccentric wheel, when the first motor 5 rotates with its output end as the rotation axis, the first extension rod 10 of the eccentric first transmission wheel 6 will limit its movable position under the constraint of the limit part. In this solution, the direction in which the first slide groove 7 is set, that is, the direction in which the first transmission wheel 6 moves, is used to drive the fundus camera 2 toward / away from the eye, thereby realizing the movement of the fundus camera 2 toward or away from the eye position. When the first motor 5 is started, since the first motor 5 is fixed to the first platform 3, the start of the first motor 5 will transmit power to the first transmission wheel 6. At this time, the first extension rod 10 of the first transmission wheel 6 can rotate in the first slide groove 7 and slide along the first slide groove 7. Since the first motor 5 is fixed on the first platform 3, when the first transmission wheel 6 rotates, it can drive the first motor 5 to move, and then the first motor 5 drives the first platform 3 to move. The scheme preferably adopts a first extension rod 10 with an arc-shaped outer wall, and adopts a waist-shaped groove as the first slide groove 7. When the first extension rod 10 slides in the waist-shaped groove, the contact is better and the sliding is smoother. In other schemes, those skilled in the art may also adopt a rectangular groove as the first slide groove 7; the slit lamp 21 cooperates with the reciprocating drive mode of the eccentric wheel and the slide groove to form a high-precision and fixed-range scanning stroke. If the eccentric wheel here is the first transmission wheel 6, the slide groove cooperating with it is the first slide groove 7, and if the eccentric wheel is the second transmission wheel 13, the slide groove cooperating with it is the second slide groove 17; after the device is assembled, it is debugged and the first motor 5 is started to observe whether the first platform 3 drives the movement of the fundus camera 2 smoothly and whether it can realize the movement of approaching / moving away from the eye according to the design requirements. If there are problems such as jamming, the connection and installation position of the components are adjusted in time to ensure that the device can operate normally.
[0023] As a further improvement of this embodiment, a third platform 11 is further provided in the shell 1, and the third platform 11 is fixedly connected to the shell 1. A second motor 12 and a second transmission wheel 13 are provided between the third platform 11 and the second platform 4. The second motor 12 is fixedly connected to the second platform 4. One end of the second transmission wheel 13 is key-connected with the output end of the second motor 12, and the other end is slidably connected to the third platform 11. A second limiting portion for slidingly limiting the second transmission wheel 13 is provided on the third platform 11. The second transmission wheel 13 is an eccentric wheel. The end surface of the second transmission wheel 13 facing the second motor 12 is provided with a second input end 15 for plugging and mating with the output end of the second motor 12, and the end surface facing the third platform 11 is provided with a second input end 15 for slidingly connecting with the third platform 11 The second extension rod 16 is connected to the third platform 11, and the second extension rod 16 is slidably connected to the second motor 12, which rotates with its output end as the rotation axis to drive the second transmission wheel 13 to move along the second limiting part, and the second platform 4 can cooperate with the second motor 12 to move to drive the second platform 4 to move left / right toward the eye position; the second limiting part is a second slide groove 17 set on the third platform 11 corresponding to the position of the second extension rod 16, the second extension rod 16 is partially inserted in the second slide groove 17 and slides along the length direction of the second slide groove 17, and the outer peripheral wall of the second extension rod 16 is against the inner wall of the slide groove; the second platform 4 is provided with a second fixed groove 19 for inserting the second motor 12, the second motor 12 is plugged into the second fixed groove 19, and the second fixed groove 19 is a waist-shaped groove.
[0024] When this solution is implemented, the second motor 12 is started. Since the second motor 12 is fixed to the second platform 4, the second motor 12 starts to transmit power to the second transmission wheel 13. At this time, the second extension rod 16 of the second transmission wheel 13 can rotate in the second slide groove 17 and slide along the second slide groove 17. Since the second motor 12 is fixed to the second platform 4, when the second transmission wheel 13 rotates, it can drive the second motor 12 to move, and then the second motor 12 drives the second platform 4 to move. This solution preferably adopts a second extension rod 16 with an arc-shaped outer peripheral wall, and adopts a waist-shaped groove as the second slide groove 17. When the second extension rod 16 slides in the waist-shaped groove, the contact is better and the sliding is smoother. After the device is assembled, it is debugged and the second motor 12 is started. Observe whether the second platform 4 drives the movement of the first platform 3 smoothly. If there are problems such as jamming, adjust the connection and installation position of the components in time to ensure that the device can operate normally. In this solution, the second platform 4 drives the first platform 3 to move because the first platform 3 is connected to the second platform 4. When the second platform 4 moves, the first platform 3 will also move accordingly. The movement direction of the second platform 4 in this solution is horizontal movement toward the left eye / right eye direction. The second motor 12, second transmission wheel 13, second slide groove 17, and second extension rod 16 in this solution are installed in the same way as the above-mentioned first motor 5, first transmission wheel 6, first slide groove 7, and first extension rod 10, but the effects produced are different. This solution can enable the fundus camera 2 in the test device to move left and right.
[0025] As a further improvement of this embodiment, at least one sliding block 20 is provided in the housing 1 between the first platform 3 and the second platform 4 and between the second platform 4 and the third platform 11 .
[0026] When implementing this solution, the solution preferably adopts a slider 20, which is used to cooperate with the movement between two adjacent platforms. Those skilled in the art can also use slide rails or other structures for the slider 20 to slide together. The use of the slider 20 can make the movement between two adjacent platforms more stable.
[0027] As a further improvement of this embodiment, a slit lamp 21 and two fill lights 8 are further provided in the housing 1 , and the two fill lights 8 are provided corresponding to the left eye and the right eye respectively.
[0028] When implementing this solution, a slit lamp 21 is set up. In this solution, the slit lamp 21 is preferably fixedly connected to the first platform 3 and moves therewith. In other solutions, the slit lamp 21 can also be fixed to the shell 1 or to the second platform 4, and the fixing method is to fix it with bolts. This solution also provides two fill lights 8 and they are respectively set corresponding to the left eye and the right eye, which are used to fill in the eye position during testing.
[0029] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A self-service handheld eye testing device, comprising a housing, characterized in that: A fundus camera, a first platform and a second platform are provided in the shell, the fundus camera is connected to the first platform, the first platform and the second platform are slidably connected, a first motor and a first transmission wheel are provided between the first platform and the second platform, the first motor is fixedly connected to the first platform, one end of the first transmission wheel is key-connected with the output end of the first motor, and the other end is slidably connected to the second platform, a first limiting portion for slidingly limiting the first transmission wheel is provided on the second platform, the first transmission wheel is an eccentric wheel, the first motor rotates with its output end as the rotation axis to drive the first transmission wheel to move along the first limiting portion, and the first platform can cooperate with the first motor to move to drive the fundus camera to move toward / away from the eye position.
2. The self-service handheld eye testing device according to claim 1, characterized in that: A slit lamp is arranged in the shell, and the slit lamp is connected to the first platform and moves synchronously with the first platform.
3. The self-service handheld eye testing device according to claim 1, characterized in that: The first motor is extended toward the first transmission wheel and is provided with an output end of the first motor for connecting to the first transmission wheel. The end surface of the first transmission wheel facing the first motor is provided with a first input end for plugging and mating with the output end of the first motor. The end surface facing the second platform is provided with a first extension rod for sliding connection to the second platform. The first extension rod is slidably connected to the second platform.
4. The self-service handheld eye testing device according to claim 2, characterized in that: The first limiting portion is a first slide groove set on the second platform corresponding to the position of the first extension rod. The first extension rod is partially inserted into the first slide groove and slides along the length direction of the first slide groove. The outer peripheral wall of the first extension rod is against the inner wall of the slide groove. The first slide groove is a waist-shaped groove.
5. The self-service handheld eye testing device according to claim 1, characterized in that: The housing is also provided with a third platform, and the third platform is fixedly connected to the housing, and a second motor and a second transmission wheel are provided between the third platform and the second platform, the second motor is fixedly connected to the second platform, one end of the second transmission wheel is key-connected with the output end of the second motor, and the other end is slidably connected to the third platform, and a second limiting portion for sliding limiting the second transmission wheel is provided on the third platform. The second transmission wheel is an eccentric wheel, and the second transmission wheel is provided with a second input end for plugging and cooperating with the output end of the second motor on the end surface facing the second motor, and a second extension rod for sliding connection with the third platform on the end surface facing the third platform, and the second extension rod is slidably connected to the third platform. The second motor rotates with its output end as the rotation axis to drive the second transmission wheel to move along the second limiting portion, and the second platform can cooperate with the second motor to move to drive the second platform to move left / right toward the eye position.
6. The self-service handheld eye testing device according to claim 5, characterized in that: The second limiting portion is a second slide groove set at the position of the second extension rod on the third platform. The second extension rod is partially inserted into the second slide groove and slides along the length direction of the second slide groove. The outer peripheral wall of the second extension rod is against the inner wall of the slide groove. The second slide groove is a waist-shaped groove.
7. The self-service handheld eye testing device according to claim 3 or 4, characterized in that: A first fixing slot for inserting the first motor is provided on the first platform, and the first motor is fixed by bolts after being inserted into the first fixing slot.
8. The self-service handheld eye testing device according to claim 5 or 6, characterized in that: The second platform is provided with a second fixing slot for inserting the second motor, and the second motor is fixed by bolts after being inserted into the second fixing slot.
9. The self-service handheld eye testing device according to claim 5, characterized in that: At least one sliding block is provided in the housing between the first platform and the second platform and between the second platform and the third platform.
10. The self-service handheld eye testing device according to claim 1, characterized in that: The shell is also provided with a slit lamp and two fill lights, and the two fill lights are respectively provided for the left eye and the right eye.