CN112294249B - Vision testing device for ophthalmologic patient - Google Patents
Vision testing device for ophthalmologic patient Download PDFInfo
- Publication number
- CN112294249B CN112294249B CN202011580927.9A CN202011580927A CN112294249B CN 112294249 B CN112294249 B CN 112294249B CN 202011580927 A CN202011580927 A CN 202011580927A CN 112294249 B CN112294249 B CN 112294249B
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- China
- Prior art keywords
- vision testing
- fixed plate
- stud
- testing device
- bevel gear
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0075—Apparatus for testing the eyes; Instruments for examining the eyes provided with adjusting devices, e.g. operated by control lever
Abstract
The invention relates to the technical field of vision testing, and discloses an ophthalmologic patient vision testing device which comprises a base, wherein a supporting column is arranged at the upper part of the base, a display board is arranged at the upper end of the supporting column, protruding blocks are arranged at four corners of the front surface of the display board, a stepping hole is formed between the protruding blocks, a supporting rod is arranged at the rear side of the display board, the rear end of the supporting rod is fixedly connected with the four corners of a fixed support, a first fixed plate is arranged at the middle part of the fixed support, the middle part of the first fixed plate is rotatably connected with the rear side of a rotating shaft, a second fixed plate is arranged at the front side of the rotating shaft, a top wheel is arranged at the lower end of the second fixed plate. The invention is suitable for a vision testing device for ophthalmological patients, different plugs can be selected to move backwards in the whole device working process, so that the annular gap can be freely changed, a user cannot record rules, the actual vision is tested, and the accuracy of the whole device is improved.
Description
Technical Field
The invention relates to the technical field of vision test, in particular to a vision test device for an ophthalmologic patient.
Background
Vision refers to the ability of the retina to resolve images. The quality of vision is determined by the amount of ability of the retina to resolve images, however, when the refractive medium of the eye (e.g., cornea, lens, vitreous, etc.) becomes cloudy or refractive errors (including myopia, hyperopia, astigmatism, etc.) exist, vision of the eye declines even when the retina functions well. Refractive media opacities of the eye can be treated surgically and refractive errors require correction by lenses.
In vision testing, vision testing is the most common testing means, and usually, when testing the vision, the test is carried out by adopting the visual chart, because the positions of different symbols of the visual chart are fixed, a tester can record the information of the whole visual chart sometimes in a mode of reciting the visual chart, so that the final vision testing result is not accurate enough, and the improvement is needed.
Disclosure of Invention
The invention provides a vision testing device for an ophthalmologic patient, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an ophthalmology patient visual testing device, includes the base, and the upper portion of base is equipped with the support column, and the upper end of support column is equipped with the show board, four corners in the front of show board are equipped with protruding piece, are equipped with the hole of stepping down between the protruding piece, the rear side of show board is equipped with the bracing piece, four corners of the rear end fixed connection fixed bolster of bracing piece, the middle part of fixed bolster is equipped with first fixed plate, and the rear side of pivot is connected in the middle part rotation of first fixed plate, and the front side of pivot is equipped with the second fixed plate, and the lower extreme of second fixed plate is equipped with the kicking wheel, the outside sliding connection slide bar of fixed bolster, the rear side of slide bar are equipped with the spacing ring, and the middle part of slide bar is equipped with the third fixed plate, and the front side of third fixed plate is equipped with the top.
As a preferable technical solution of the present invention, a spring is disposed between the third fixing plate and the fixing bracket.
As a preferable technical scheme of the invention, the rear end of the sliding rod is provided with a limiting block.
As a preferable technical solution of the present invention, the cross section of the plug is trapezoidal.
As a preferable technical scheme of the invention, a driving motor is arranged at the lower part of the first fixing plate, an output shaft of the driving motor is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is fixedly connected with the rear end of the rotating shaft.
As a preferable aspect of the present invention, the first bevel gear is a tooth-missing gear.
As a preferred technical solution of the present invention, a counterweight is disposed at an upper end of the second fixing plate.
As a preferable technical scheme of the invention, a first stud is arranged in the middle of the upper surface of the base, the upper part of the first stud is in threaded connection with the lower part of a threaded sleeve, the upper part of the threaded sleeve is in threaded connection with the lower part of a second stud, the upper part of the second stud is rotatably connected with a rotating seat, the upper part of the rotating seat is connected with the lower end of a supporting column, and reinforcing ribs are arranged between the left side and the right side of the rotating seat and the display board.
As a preferable technical scheme of the invention, the middle parts of the first stud and the second stud are both in threaded connection with a locking nut.
As a preferable technical scheme of the invention, the four corners of the lower surface of the base are provided with caster wheels.
The invention has the following advantages:
the invention is suitable for an ophthalmologic patient vision testing device, the driving motor is arranged to drive the top wheel to rotate, so that the four plugs are continuously moved backwards, the three plugs and the four convex blocks form a gap ring shape for vision detection, in addition, different plugs can be selected to move backwards in the whole device working process, the ring-shaped gap can be freely changed, a user cannot record rules, the actual vision is tested, and the accuracy of the whole device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vision testing device for an ophthalmologic patient.
Fig. 2 is a schematic structural view of a display board in the vision testing apparatus for an ophthalmologic patient.
Fig. 3 is a right side view of fig. 2.
Fig. 4 is a schematic structural view of a display plate of the vision testing apparatus for an ophthalmic patient with the plug removed.
Fig. 5 is a schematic structural view of a fixing bracket in the vision testing device for an ophthalmologic patient.
Fig. 6 is a right side view of fig. 5.
Fig. 7 is a schematic structural view of the connection between the top wheel and the top head in the vision testing device for the ophthalmology patient.
In the figure: 1. a caster wheel; 2. a base; 3. a first stud; 4. locking the nut; 5. a threaded sleeve; 6. a second stud; 7. a rotating seat; 8. reinforcing ribs; 9. a support pillar; 10. a display board; 11. a hole of abdication; 12. a raised block; 13. a plug; 14. a support bar; 15. fixing a bracket; 16. a first fixing plate; 17. a drive motor; 18. a first bevel gear; 19. a rotating shaft; 20. a second bevel gear; 21. a second fixing plate; 22. a top wheel; 23. a balancing weight; 24. a slide bar; 25. a third fixing plate; 26. ejecting the head; 27. a spring; 28. a limiting ring; 29. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-7, an ophthalmologic patient vision testing apparatus includes a base 2, a supporting column 9 is disposed on the upper portion of the base 2, a display board 10 is disposed on the upper end of the supporting column 9, a first stud 3 is disposed in the middle of the upper surface of the base 2, the upper portion of the first stud 3 is in threaded connection with the lower portion of a threaded sleeve 5, the upper portion of the threaded sleeve 5 is in threaded connection with the lower portion of a second stud 6, the upper portion of the second stud 6 is rotatably connected with a rotating base 7, the upper portion of the rotating base 7 is connected with the lower end of the supporting column 9, reinforcing ribs 8 are disposed between the left side and the right side of the rotating base 7 and the display board 10, protruding blocks 12 are disposed at four corners of the front surface of the display board 10, the protruding blocks 12 are L-shaped, a yielding hole 11 is disposed between the protruding blocks 12, namely, a yielding hole is disposed on the display board 10.
The rear side of the display board 10 is provided with a support rod 14, the rear ends of the support rods 14 are fixedly connected with four corners of a fixed support 15, the middle of the fixed support 15 is provided with a first fixed plate 16, the middle of the first fixed plate 16 is rotatably connected with the rear side of a rotating shaft 19, the lower part of the first fixed plate 16 is provided with a driving motor 17, an output shaft of the driving motor 17 is fixedly connected with a first bevel gear 18, the first bevel gear 18 is meshed with a second bevel gear 20, the second bevel gear 20 is fixedly connected with the rear end of the rotating shaft 19, and the first bevel gear 18 is a tooth-lacking gear.
A second fixing plate 21 is arranged on the front side of the rotating shaft 19, a balancing weight 23 is arranged at the upper end of the second fixing plate 21, a top wheel 22 is arranged at the lower end of the second fixing plate 21, the outer side of the fixing support 15 is connected with a sliding rod 24 in a sliding manner, a limiting ring 28 is arranged on the rear side of the sliding rod 24, a third fixing plate 25 is arranged in the middle of the sliding rod 24, a spring 27 is arranged between the third fixing plate 25 and the fixing support 15, a top head 26 is arranged on the front side of the third fixing plate 25, the cross section of the top head 26 is trapezoidal, when the top wheel 22 is contacted with the top head 26, the top wheel 22 is firstly contacted with a trapezoidal inclined surface, so that the effect of pushing the top head 26 to move towards the rear side is achieved, and the trapezoidal shape enables the whole pushing process to be smooth, the stability of the whole device is improved, a plug 13 is arranged at the front end of the sliding, the rear end of the slide lever 24 is provided with a stopper 29.
Example two
Referring to fig. 1, the other contents of the present embodiment are the same as those of the first embodiment, except that: four corners of the lower surface of the base 2 are provided with trundles 1. In order to improve the convenience that whole device removed, set up truckle 1 in the bottom of device to can remove whole device through truckle 1, and truckle 1 has self-locking function, after the device moved the target location, can fix whole device through the mode of locking truckle 1, thereby realize whole device's fixed effect.
In the implementation process of the invention, when the device is used, the device is firstly moved to a flat fixed position, the lock nut 4 is unscrewed, the threaded sleeve 5 is rotated at the moment, due to the fact that the first stud 3 and the first stud 3 are provided with threads with opposite turning directions, the threaded sleeve 5, during rotation, moves the first stud 3 and the second stud 6 closer to each other or away from each other, thereby adjusting the height of the whole device, stopping rotating the thread bush 5 when the height of the device meets the use requirement, and the locking nut 4 is screwed so that the positions of the first stud 3 and the second stud 6 and the threaded sleeve 5 are fixed, therefore, the height of the whole device is fixed, the display board 10 can be rotated at the moment, the second stud 6 and the rotating seat 7 are rotated, the orientation of the display board 10 is adjusted, and the display board is suitable for users in different directions.
After the assembly and adjustment are completed, the user stands at a proper distance, and then the driving motor 17 is started, the output shaft of the driving motor 17 drives the rotating shaft 19 to rotate through the first bevel gear 18 and the second bevel gear 20 which are in meshed connection, and because the first bevel gear 18 is a tooth-missing gear, the rotating shaft 19 rotates only when the tooth part of the first bevel gear 18 contacts with the second bevel gear 20, and by setting, the second bevel gear 20 can rotate 90 ° each time the tooth part of the first bevel gear 18 contacts with the second bevel gear 20, so that the rotating shaft 19 intermittently rotates, and rotates 90 ° each time, the rotating shaft 19 drives the second fixing plate 21 to rotate, the second fixing plate 21 drives the top wheel 22 to rotate around the rotating shaft 19, when the top wheel 22 contacts with the top head 26, the top wheel 22 pushes the top head 26 to the rear side, so that the top head 26 drives the sliding rod 24 to move backwards, the sliding rod 24 pulls the plug 13 to move backwards, when the top wheel 22 is not in contact with the top 26, under the action of the spring 27, the sliding rod 24 is located at the foremost end, at the moment, the plug 13 is also located at the foremost end, the four plugs 13 and the four protruding blocks 12 form an annular shape, after one plug 13 moves backwards, the annular shape lacks a side, so that a gap appears, the gap is similar to a gap figure in a visual chart, at the moment, a user can continuously indicate the direction of the gap, so that the vision of the user is judged, and the vision of the user can be judged according to the distance between the user and the device, so that the vision detection is completed.
The invention is suitable for a vision testing device for ophthalmological patients, the driving motor 17 is arranged to drive the top wheel 22 to rotate, so that the four plugs 13 continuously move backwards, the three plugs 13 and the four convex blocks 12 form a gap ring shape for vision detection, and in the whole device working process, different plugs 13 can be selected to move backwards, so that the ring-shaped gap can be freely changed, a user cannot record rules, the actual vision is tested, and the accuracy of the whole device is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The vision testing device for the ophthalmological patient comprises a base (2), wherein a supporting column (9) is arranged on the upper portion of the base (2), a display board (10) is arranged at the upper end of the supporting column (9), and is characterized in that four corners of the front surface of the display board (10) are provided with protruding blocks (12), a yielding hole (11) is formed between the protruding blocks (12), a supporting rod (14) is arranged on the rear side of the display board (10), the rear ends of the supporting rods (14) are fixedly connected with four corners of a fixed support (15), a first fixed plate (16) is arranged in the middle of the fixed support (15), the middle of the first fixed plate (16) is rotatably connected with the rear side of a rotating shaft (19), a second fixed plate (21) is arranged on the front side of the rotating shaft (19), a top wheel (22) is arranged at the lower end of the second fixed plate (21), and a sliding rod (24) is slidably connected, the rear side of slide bar (24) is equipped with spacing ring (28), and the middle part of slide bar (24) is equipped with third fixed plate (25), and the front side of third fixed plate (25) is equipped with top (26), and the front end of slide bar (24) is equipped with end cap (13), and end cap (13) through connection hole (11) middle part of stepping down, four end cap (13) and four protruding piece (12) form an annular, after one of them end cap (13) rearward movement, this annular has lacked a limit.
2. An ophthalmologic patient vision testing device according to claim 1, characterized in that a spring (27) is provided between the third fixing plate (25) and the fixing bracket (15).
3. The ophthalmic patient vision testing arrangement according to claim 1, characterized in that the rear end of the sliding rod (24) is provided with a stop block (29).
4. An ophthalmic patient vision testing arrangement according to claim 1, characterized in that the cross-section of the tip (26) is trapezoidal.
5. The vision testing device for the ophthalmologic patient according to claim 1, wherein a driving motor (17) is arranged at the lower part of the first fixing plate (16), an output shaft of the driving motor (17) is fixedly connected with a first bevel gear (18), the first bevel gear (18) is engaged with a second bevel gear (20), and the second bevel gear (20) is fixedly connected with the rear end of a rotating shaft (19).
6. The ophthalmic patient vision testing arrangement according to claim 5, characterized in that said first bevel gear (18) is a missing tooth gear.
7. The vision testing device for ophthalmology patients as claimed in claim 1, wherein the second fixing plate (21) is provided with a weight block (23) at the upper end.
8. The vision testing device for the ophthalmologic patient according to claim 1, characterized in that a first stud (3) is arranged in the middle of the upper surface of the base (2), the upper part of the first stud (3) is in threaded connection with the lower part of a threaded sleeve (5), the upper part of the threaded sleeve (5) is in threaded connection with the lower part of a second stud (6), the upper part of the second stud (6) is rotatably connected with a rotating seat (7), the upper part of the rotating seat (7) is connected with the lower end of a supporting column (9), and a reinforcing rib (8) is arranged between the left side and the right side of the rotating seat (7) and the display plate (10).
9. An ophthalmologic patient vision testing arrangement according to claim 8, characterized in that the middle of the first stud (3) and the second stud (6) is screwed with a lock nut (4).
10. An ophthalmologic patient vision testing device according to claim 1, characterized in that the lower surface of the base (2) is provided with castors (1) at four corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580927.9A CN112294249B (en) | 2020-12-28 | 2020-12-28 | Vision testing device for ophthalmologic patient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011580927.9A CN112294249B (en) | 2020-12-28 | 2020-12-28 | Vision testing device for ophthalmologic patient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112294249A CN112294249A (en) | 2021-02-02 |
| CN112294249B true CN112294249B (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011580927.9A Expired - Fee Related CN112294249B (en) | 2020-12-28 | 2020-12-28 | Vision testing device for ophthalmologic patient |
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| Country | Link |
|---|---|
| CN (1) | CN112294249B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201641969U (en) * | 2010-03-29 | 2010-11-24 | 陶浙 | Novel movable visual testing chart |
| CN203408028U (en) * | 2013-05-13 | 2014-01-29 | 吴善锁 | Anti-cheating visual chart |
| CN203677054U (en) * | 2013-09-18 | 2014-07-02 | 王涛 | Visual testing chart panel and visual testing chart lamp box |
| CN207506559U (en) * | 2017-04-19 | 2018-06-19 | 四川大学 | A kind of Multifunctional eyesight detects table |
| CN108852277A (en) * | 2018-08-28 | 2018-11-23 | 魏永 | A kind of Multifunctional eyesight table |
| CN210330545U (en) * | 2019-03-11 | 2020-04-17 | 重庆臻冠科技有限公司 | Automatic vision tester |
-
2020
- 2020-12-28 CN CN202011580927.9A patent/CN112294249B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201641969U (en) * | 2010-03-29 | 2010-11-24 | 陶浙 | Novel movable visual testing chart |
| CN203408028U (en) * | 2013-05-13 | 2014-01-29 | 吴善锁 | Anti-cheating visual chart |
| CN203677054U (en) * | 2013-09-18 | 2014-07-02 | 王涛 | Visual testing chart panel and visual testing chart lamp box |
| CN207506559U (en) * | 2017-04-19 | 2018-06-19 | 四川大学 | A kind of Multifunctional eyesight detects table |
| CN108852277A (en) * | 2018-08-28 | 2018-11-23 | 魏永 | A kind of Multifunctional eyesight table |
| CN210330545U (en) * | 2019-03-11 | 2020-04-17 | 重庆臻冠科技有限公司 | Automatic vision tester |
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| Publication number | Publication date |
|---|---|
| CN112294249A (en) | 2021-02-02 |
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Granted publication date: 20210316 Termination date: 20211228 |