CN107837068B - A kind of eyesight detection lamp box - Google Patents
A kind of eyesight detection lamp box Download PDFInfo
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- CN107837068B CN107837068B CN201711202612.9A CN201711202612A CN107837068B CN 107837068 B CN107837068 B CN 107837068B CN 201711202612 A CN201711202612 A CN 201711202612A CN 107837068 B CN107837068 B CN 107837068B
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- 230000004438 eyesight Effects 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000003384 imaging method Methods 0.000 claims abstract description 24
- 238000007689 inspection Methods 0.000 claims abstract 5
- 238000010248 power generation Methods 0.000 claims description 22
- 230000000007 visual effect Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010047571 Visual impairment Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004393 visual impairment Effects 0.000 description 2
- 206010012559 Developmental delay Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
- 230000004382 visual function Effects 0.000 description 1
Classifications
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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
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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
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0204—Operational features of power management
- A61B2560/0214—Operational features of power management of power generation or supply
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention belongs to eyesight detection technique field, specifically a kind of eyesight detects lamp box, including cabinet, imaging plate, baffle, feed unit, light emitting module, electricity generation module, telescopic leg and battery；Cabinet side is equipped with imaging plate, and baffle is mounted on box house, is equipped with aperture in the middle part of baffle, and for aperture for realizing pinhole imaging system, cabinet both sides external is provided with graduated scale, and eyesight value is record on graduated scale, is equipped with multiple circular holes above graduated scale；Feed unit is cooperatively connected light emitting module；Feed unit is used to adjust the distance of light emitting module and aperture；It is different with the position of graduated scale by feed unit, carry out the inspection side of different eyesight degrees；Electricity generation module is located in the box body portion side, for being powered to light emitting module.The configuration of the present invention is simple, easy to operate, easy to carry, the eyesight of the child especially suitable for remote mountain areas and backward areas detects work.
Description
Technical Field
The invention belongs to the technical field of vision detection, and particularly relates to a vision detection lamp box.
Background
The eyes are the most important sense organs of the human body, and more than about 80% of the external information received by people is obtained through the eyes. In recent years, the proportion of people with abnormal vision has increased year by year, and particularly in the group of children, the phenomenon of vision problems has become increasingly common. If the early visual function development disorder cannot be checked and corrected in time, the vision problems along with life can be caused, the physiological and mental injuries are brought to the growing children, and the subsequent aspects of the promotion, employment and the like can be influenced. Therefore, the visual detection is carried out, and the method has important significance for each family and the whole society for timely interventional therapy of patients with early visual impairment.
The existing visual detection method mainly utilizes a lamp box visual chart which can be used for visual test in a fixed place, a larger space and an environment with standard visual chart brightness, however, the visual detection mode is often not feasible in mountainous areas, remote areas and lagging areas, so that a portable visual detection tool is urgently needed to meet the requirements of the people.
In view of the above, the vision detection lamp box provided by the invention has the advantages of simple structure, convenience in operation and portability; the method has the following specific beneficial effects:
1. the vision detection lamp box provided by the invention is self-charged by arranging the power generation module, and is convenient to carry.
2. The vision detection lamp box disclosed by the invention utilizes a small hole imaging principle, and is simple in structure and convenient to operate.
3. According to the vision detection lamp box, the plurality of luminous patterns are arranged, different groups are suitable for different groups by selecting different patterns, the interest of children is increased, and the children are more matched with vision detection activities.
Disclosure of Invention
In order to make up for the deficiency of the prior art, the invention provides a vision detection lamp box, which is particularly suitable for the vision detection work of children in remote mountainous areas and laggard areas.
The invention relates to a vision detection lamp box which comprises a box body, an imaging plate, a baffle plate, a feeding unit, a light emitting module, a power generation module, telescopic supporting legs and a storage battery, wherein the imaging plate is arranged on the box body; an imaging plate is arranged on one side of the box body and used for presenting patterns; the baffle is arranged in the box body, and the baffle divides the box body into two cavities to divide the light-emitting module and the imaging plate; the middle part of the baffle is provided with a small hole which is used for realizing small hole imaging; scales are arranged on two sides of the outer portion of the box body, vision values are recorded on the scales, a plurality of round holes are formed in the upper portion of each scale, and the round holes can clamp guide pillars of the feeding unit at intervals; sliding grooves are formed in two sides of the interior of the box body and are used for being matched with and connected with the feeding unit; the feeding unit is positioned in the box body and is connected with the light-emitting module in a matching way; the feeding unit is used for adjusting the distance between the light-emitting module and the small hole, and simultaneously, the side detection with different eyesight degrees is carried out through the different positions of the feeding unit and the graduated scale; the power generation module is positioned on one side in the box body and used for supplying power to the light-emitting module; the power generation module is connected with the feeding unit and generates electric energy through the movement of the feeding unit; the storage battery is arranged in the box body and used for storing electric energy generated by the power generation module and supplying power to the light-emitting module; the lower part of the box body is provided with a retractable supporting leg for supporting the whole device; wherein,
the feeding unit comprises a slide rail, a slide block, a screw rod, a rotating wheel, a feeding nut and a guide pillar; the sliding rail is arranged in the box body; the section of the slide rail is T-shaped; the lower end of the sliding block is provided with a T-shaped groove matched and connected with the sliding rail, and the sliding block can slide along the sliding rail; one end of the screw rod is rotatably connected with the sliding block, the other end of the screw rod extends out of the box body and is rotatably connected with the box body, and the rotating wheel is arranged outside the box body and is connected to the end head of the screw rod; one end of the screw is symmetrically provided with two conical gears relative to the axial vertical plane of the screw; the bevel gear is used for being matched and connected with the power generation module, when the rotating wheel rotates forwards, the sliding block is arranged at one end of the sliding rail, and the first bevel gear on the rotating shaft of the first generator is meshed with the bevel gear arranged on the screw rod, so that power generation of the first generator is realized; when the rotating wheel rotates reversely, the screw rod is pulled, the sliding block is arranged at the other end of the sliding rail, and a second bevel gear on the rotating shaft of the second generator is meshed with a bevel gear arranged on the screw rod, so that the second generator generates electricity; the feeding nut is screwed on the screw rod and is used for being matched and connected with the light-emitting module, and the nut moves to drive the light-emitting module to move so as to realize the distance adjustment between the light-emitting module and the small hole; guide columns are arranged on two sides of the feed nut; the guide pillar end inserts in the box spout, in the guide pillar end can block the round hole that sets up above the box outside scale, rotate runner guide pillar end and block in the round hole in proper order, correspond the visual value on the scale, realize the detection of eyesight.
Preferably, the power generation module comprises a first generator, a first bevel gear, a second generator and a second bevel gear; the first generator is arranged in the box body, and a first bevel gear is connected to a rotating shaft of the first generator; the second generator is arranged in the box body and is symmetrically arranged with the first generator, and a second bevel gear is connected to a rotating shaft of the second generator; the first bevel gear and the second bevel gear can be meshed with the bevel gears arranged on the screw rods, the movement directions of the feeding units are different, and the adopted generators are also different, so that the rotation direction of the generators is guaranteed to be fixed.
Preferably, the light-emitting module comprises a connecting plate, a shielding plate, a rotary disc, a rolling ball, a spring, a stop block, a first bevel gear, a second bevel gear, a connecting rod and a knob; one end of the connecting plate is connected to a feeding nut of the feeding unit, and the feeding nut moves left and right to drive the light-emitting module to move; the other end of the connecting plate is connected with a shielding plate, and the upper end of the shielding plate is provided with a square notch for realizing independent irradiation of different luminous patterns; the rotary table is rotatably connected to one side of the shielding plate, at least three light-emitting patterns are arranged in the rotary table, and different light-emitting patterns are switched by rotating the rotary table; the periphery of the rotary table is at least provided with three circular arc openings, rolling balls are arranged in the circular arc openings, one ends of the rolling balls are provided with springs, one ends of the springs are provided with stop blocks, and the stop blocks are connected to the baffle plates to realize the fixation of each rotation angle of the rotary table; a first bevel gear is arranged on one side of the rotary table; the first bevel gear is meshed with the second bevel gear, the second bevel gear is connected with a connecting rod, the connecting rod extends out of the box through a notch formed in the box body, the end of the connecting rod is connected with a knob, and the knob can drive the rotary disc to rotate when rotating.
Preferably, the guide pillar end is provided with a guide pillar hole, a clamping spring is arranged in the guide pillar hole, the end of the clamping spring is connected with a steel ball, the steel ball can be clamped on a round hole on the outer side of the box body, the rotating wheel is rotated, and the guide pillar is sequentially clamped on the round hole on the outer side of the box body and sequentially corresponds to different visual force values.
Preferably, cylindrical holes are formed in two sides of the inner portion of the T-shaped groove of the sliding block, a first spring is arranged in each cylindrical hole, a round pin is arranged at one end of each first spring, and each round pin can be pressed into each cylindrical hole; the slide rail both sides are equipped with spherical hole, spherical hole is used for the cooperation to block the round pin, and through setting up round pin and spherical hole, when the end of slide rail was removed to the slider, the round pin blocked promptly in the spherical hole, conveniently removed and fixed slider.
The invention has the following beneficial effects:
1. the vision detection lamp box provided by the invention is self-charged by arranging the power generation module, and is convenient to carry.
2. The vision detection lamp box disclosed by the invention utilizes a small hole imaging principle, and is simple in structure and convenient to operate.
3. According to the vision detection lamp box, the plurality of luminous patterns are arranged, different groups are suitable for different groups by selecting different patterns, the interest of children is increased, and the children are more matched with vision detection activities.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is a block diagram of the slider of FIG. 1;
FIG. 6 is a view of the slide rail of FIG. 1;
in the figure: the device comprises a box body 1, a graduated scale 11, a circular hole, a sliding chute 13, an imaging plate 2, a baffle 3, a small hole 31, a feeding unit 4, a sliding rail 41, a spherical hole 411, a sliding block 42, a cylindrical hole 421, a first spring 422, a round pin 423, a screw 43, a rotating wheel 44, a feeding nut 45, a guide post 46, a guide post hole 461, a clamping spring 462, a steel ball 463, a light-emitting module 5, a connecting plate 51, a baffle plate 52, a rotating disc 53, a light-emitting pattern 531, a circular arc 532, a rolling ball 54, a spring, a stopper 55, a first bevel gear 56, a second bevel gear 57, a connecting rod 58, a knob 59, a power generation module, a first motor 61, a first bevel gear 62, a second motor 63, a second bevel gear.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the vision detecting lamp box of the present invention comprises a box body 1, an imaging plate 2, a baffle 3, a feeding unit 4, a light emitting module 5, a power generating module, a telescopic leg 7 and a storage battery; an imaging plate 2 is arranged on one side of the box body 1, and the imaging plate 2 is used for presenting patterns; the baffle 3 is arranged in the box body 1, the baffle 3 divides the box body 1 into two cavities, and the light-emitting module 5 and the imaging plate 2 are divided; a small hole 31 is formed in the middle of the baffle 3, and the small hole 31 is used for realizing small hole imaging; the two sides of the outer part of the box body 1 are provided with graduated scales 11, the graduated scales 11 record vision values, a plurality of round holes are arranged above the graduated scales 11, and the round holes can clamp guide pillars 46 of the feeding unit 4 at intervals; sliding grooves 13 are formed in two sides of the interior of the box body 1, and the sliding grooves 13 are used for being matched and connected with the feeding unit 4; the feeding unit 4 is positioned in the box body 1, and the feeding unit 4 is connected with the light-emitting module 5 in a matching way; the feeding unit 4 is used for adjusting the distance between the light-emitting module 5 and the small hole 31, and simultaneously, different eyesight degrees are detected through different positions of the feeding unit 4 and the graduated scale 11; the power generation module is positioned on one side inside the box body 1 and used for supplying power to the light emitting module 5; the power generation module is connected with the feeding unit 4 and generates electric energy through the movement of the feeding unit 4; the storage battery is arranged in the box body 1 and used for storing electric energy generated by the power generation module 6 and supplying power to the light-emitting module 5; the lower part of the box body 1 is provided with a retractable supporting leg 7 for supporting the whole device; wherein,
the feeding unit 4 comprises a slide rail 41, a slide block 42, a screw 43, a rotating wheel 44, a feeding nut 45 and a guide post 46; the slide rail 41 is arranged in the box body 1, and the section of the slide rail 41 is T-shaped; the lower end of the sliding block 42 is provided with a T-shaped groove matched and connected with the sliding rail 41, and the sliding block 42 can slide along the sliding rail 41; one end of the screw 43 is rotatably connected with the sliding block 42, the other end of the screw 43 extends out of the box body 1 and is rotatably connected with the box body 1, and the rotating wheel 44 is arranged outside the box body 1 and is connected with the end of the screw 43; one end of the screw 43 is symmetrically provided with two bevel gears relative to the vertical plane of the axial direction of the screw 43; the bevel gear is used for being matched and connected with the power generation module 6, when the rotating wheel 44 rotates forwards, the sliding block 42 is arranged at one end of the sliding rail 41, and the first bevel gear 62 on the rotating shaft of the first generator 61 is meshed with the bevel gear arranged on the screw 43, so that power generation of the first generator 61 is realized; when the rotating wheel 44 rotates reversely, the screw 43 is pulled, the sliding block 42 is placed at the other end of the sliding rail 41, and at this time, the second bevel gear 64 on the rotating shaft of the second generator 63 is meshed with the bevel gear arranged on the screw 43, so that the second generator 63 generates electricity; the feeding nut 45 is screwed on the screw rod 43, the feeding nut 45 is used for being connected with the light-emitting module 5 in a matching mode, the nut 45 moves to drive the light-emitting module 5 to move, and distance adjustment between the light-emitting module 5 and the small hole 31 is achieved; guide posts 46 are arranged on two sides of the feeding nut 45; the end of the guide pillar 46 is inserted into the chute 13 of the box body 1, the end of the guide pillar 46 can be clamped into a round hole formed above the graduated scale 11 on the outer side of the box body 1, the end of the guide pillar 46 of the rotary wheel is rotated to sequentially clamp the round hole, and the visual detection is realized by corresponding to the visual value on the graduated scale 11.
As an embodiment of the present invention, the power generation module includes a first generator 61, a first bevel gear 62, a second generator 63, and a second bevel gear 64; the first generator 61 is arranged in the box body 1, and a first bevel gear 62 is connected to the rotating shaft of the first generator 61; the second generator 63 is installed inside the box body 1, the second generator 63 and the first generator 61 are symmetrically arranged, and a second bevel gear 64 is connected to a rotating shaft of the second generator 63; the first bevel gear 62 and the second bevel gear 64 can be engaged with the bevel gear arranged on the screw 43, the moving direction of the feeding unit 4 is different, and the generator is different, so as to ensure the fixed rotation direction of the generator.
As an embodiment of the present invention, the light emitting module 5 includes a connection plate 51, a shielding plate 52, a turntable 53, a rolling ball 54, a spring, a stopper 55, a first bevel gear 56, a second bevel gear 57, a connection rod 58, and a knob 59; one end of the connecting plate 51 is connected to the feeding nut 45 of the feeding unit 4, and the feeding nut 45 moves left and right to drive the light-emitting module 5 to move; the other end of the connecting plate 51 is connected with a shielding plate 52, and the upper end of the shielding plate 52 is provided with a square notch for realizing independent irradiation of different light-emitting patterns 531; the turntable 53 is rotatably connected to one side of the shielding plate 52, at least three light-emitting patterns 531 are arranged in the turntable 53, and the turntable 53 is rotated to switch different light-emitting patterns 531; at least three circular arc-shaped openings 532 are arranged on the periphery of the rotary disc 53, rolling balls 54 are arranged in the circular arc-shaped openings 532, springs are arranged at one ends of the rolling balls 54, a stop block 55 is arranged at one end of each spring, and the stop block 55 is connected to the shielding plate 52, so that the rotation angle of the rotary disc 53 is fixed each time; a first bevel gear 56 is arranged on one side of the turntable 53; the first bevel gear 56 is meshed with the second bevel gear 57, the second bevel gear 57 is connected with a connecting rod 58, the connecting rod 58 extends out of the box through a notch formed in the box body 1, the end of the connecting rod 58 is connected with a knob 59, and the knob 59 can drive the turntable 53 to rotate through rotation.
As an embodiment of the present invention, a guide post hole 461 is formed at an end of the guide post 46, a chucking spring 462 is arranged in the guide post 461, a steel ball 463 is connected to an end of the chucking spring 462, the steel ball 463 can be clamped on a circular hole at the outer side of the box body 1, the rotating wheel 44 is rotated, and the guide post 46 is sequentially clamped on the circular hole at the outer side of the box body 1, which sequentially corresponds to different visual force values.
As an embodiment of the present invention, cylindrical holes 421 are provided at two sides inside the T-shaped groove of the slider 42, a first spring 422 is provided inside the cylindrical holes 421, a round pin 423 is provided at one end of the first spring 422, and the round pin 423 can be pressed into the cylindrical holes 421; spherical holes 411 are formed in two sides of the sliding rail 41, the spherical holes 411 are used for being matched with and clamping the round pins 423, and through the arrangement of the round pins 423 and the spherical holes 411, when the sliding block 42 moves to the end of the sliding rail, the round pins 423 are clamped into the spherical holes 411, so that the sliding block 42 is convenient to move and fix.
When the imaging device works, an operator turns on a power supply to enable the light-emitting pattern 531 in the light-emitting module 5 to be lightened, the light-emitting pattern 531 is provided with the small hole 31 through the middle part of the baffle 3, the light-emitting pattern 531 is projected onto the imaging plate 2 by utilizing the small hole imaging principle, a detected person reads the figure of the imaging plate 2, if the figure can be clearly seen, the rotating wheel 44 is rotated to drive the screw 43 to rotate, the feeding nut 45 on the screw 43 moves, and the position of the light-emitting module 5 is adjusted, namely the distance between the light-emitting pattern 531 and the small hole 31 is adjusted, so that the size change of the; when the detected person can just see the pattern clearly, the position of the end of the guide post 46 clamped with the round hole is checked, and the vision value on the corresponding graduated scale 11 is read to realize the vision detection; when the detected person is a child, the operator can switch the light-emitting patterns 531 with different shapes by rotating the knob 59, so that the interest of the child is improved; when an operator uses the device in the using process and the rotating wheel 44 rotates forwards, the sliding block 42 is arranged at one end of the sliding rail 41, and the first bevel gear 62 on the rotating shaft of the first generator 61 is meshed with the bevel gear arranged on the screw 43, so that the first generator 61 generates electricity; when the rotating wheel 44 rotates reversely, the screw 43 is pulled, the sliding block 42 is placed at the other end of the sliding rail 41, and at this time, the second bevel gear 64 on the rotating shaft of the second generator 63 is meshed with the bevel gear arranged on the screw 43, so that the second generator 63 generates electricity; the storage battery stores the electric energy of the power generation module and supplies power to the light emitting module 5 without an external power supply or charging.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a visual detection lamp house which characterized in that: the device comprises a box body (1), an imaging plate (2), a baffle plate (3), a feeding unit (4), a light-emitting module (5), a power generation module, telescopic supporting legs (7) and a storage battery; an imaging plate (2) is arranged on one side of the box body (1), and the imaging plate (2) is used for presenting patterns; the baffle (3) is arranged in the box body (1), and the box body (1) is divided into two cavities by the baffle (3); a small hole (31) is formed in the middle of the baffle (3), and the small hole (31) is used for realizing small hole imaging; graduated scales (11) are arranged on two sides of the outer part of the box body (1), a plurality of round holes are arranged above the graduated scales (11), sliding grooves (13) are arranged on two sides of the inner part of the box body (1), and the sliding grooves (13) are used for being matched and connected with the feeding unit (4); the feeding unit (4) is positioned in the box body (1), and the feeding unit (4) is connected with the light-emitting module (5) in a matching way; the feeding unit (4) is used for adjusting the distance between the light emitting module (5) and the small hole (31); the power generation module is positioned on one side in the box body (1) and is connected with the feeding unit (4); the storage battery is arranged in the box body (1), and is used for storing electric energy generated by the power generation module and supplying power to the light-emitting module (5); the lower part of the box body (1) is provided with a retractable supporting leg (7); wherein,
the feeding unit (4) comprises a slide rail (41), a slide block (42), a screw rod (43), a rotating wheel (44), a feeding nut (45) and a guide post (46); the sliding rail (41) is arranged in the box body (1), and the section of the sliding rail (41) is T-shaped; the lower end of the sliding block (42) is provided with a T-shaped groove matched with the sliding rail (41); one end of the screw rod (43) is rotatably connected with the sliding block (42), the other end of the screw rod (43) extends out of the box body (1) and is rotatably connected with the box body (1), and the rotating wheel (44) is arranged outside the box body (1) and is connected to the end of the screw rod (43); one end of the screw rod (43) is symmetrically provided with two bevel gears relative to the vertical plane of the axial direction of the screw rod (43); the conical gear is used for being matched and connected with the power generation module; the feeding nut (45) is screwed on the screw rod (43), the feeding nut (45) is used for being connected with the light-emitting module (5) in a matching mode, and guide columns (46) are arranged on two sides of the feeding nut (45); the end of the guide post (46) is inserted into a sliding groove (13) of the box body (1), and the end of the guide post (46) can be clamped into a round hole above the graduated scale (11) on the outer side of the box body (1).
2. The vision inspection light box of claim 1, characterized in that: the power generation module comprises a first motor (61), a first bevel gear (62), a second motor (63) and a second bevel gear (64); the first motor (61) is arranged in the box body (1), and a first bevel gear (62) is connected to a rotating shaft of the first motor (61); the second motor (63) is arranged in the box body (1), the second motor (63) and the first motor (61) are symmetrically arranged, and a second bevel gear (64) is connected to a rotating shaft of the second motor (63); the first bevel gear (62) and the second bevel gear (64) can be meshed with a bevel gear arranged on the screw (43).
3. The vision inspection light box of claim 1, characterized in that: the light-emitting module (5) comprises a connecting plate (51), a shielding plate (52), a rotary disc (53), a rolling ball (54), a spring, a stop block (55), a first bevel gear (56), a second bevel gear (57), a connecting rod (58) and a knob (59); one end of the connecting plate (51) is connected to a feeding nut (45) of the feeding unit (4); the other end of the connecting plate (51) is connected with a shielding plate (52), and the upper end of the shielding plate (52) is provided with a square notch; the rotary table (53) is rotatably connected to one side of the shielding plate (52), and at least three light-emitting patterns (531) are arranged in the rotary table (53); the periphery of the rotary table (53) is at least provided with three circular arc openings (532), rolling balls (54) are arranged inside the circular arc openings (532), one ends of the rolling balls (54) are provided with springs, one ends of the springs are provided with stop blocks (55), and the stop blocks (55) are connected to the shielding plate (52); one side of the turntable (53) is provided with a first bevel gear (56); the first bevel gear (56) is meshed with the second bevel gear (57), the second bevel gear (57) is connected with a connecting rod (58), the connecting rod (58) extends out of the box through a notch formed in the box body (1), the end of the connecting rod (58) is connected with a knob (59), and the knob (59) rotates to drive the turntable (53) to rotate.
4. The vision inspection light box of claim 1, characterized in that: the end of the guide post (46) is provided with a guide post hole (461), a clamping spring (462) is arranged in the guide post hole (461), the end of the clamping spring (462) is connected with a steel ball (463), and the steel ball (463) can be clamped on a round hole on the outer side of the box body (1).
5. The vision inspection light box of claim 1, characterized in that: two sides of the inside of a T-shaped groove of the sliding block (42) are provided with cylindrical holes (421), a first spring (422) is arranged in each cylindrical hole (421), one end of each first spring (422) is provided with a round pin (423), and each round pin (423) can be pressed into each cylindrical hole (421); spherical holes (411) are formed in two sides of the sliding rail (41), and the spherical holes (411) are used for being matched with and clamping the round pins (423).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202612.9A CN107837068B (en) | 2017-11-27 | 2017-11-27 | A kind of eyesight detection lamp box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711202612.9A CN107837068B (en) | 2017-11-27 | 2017-11-27 | A kind of eyesight detection lamp box |
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| Publication Number | Publication Date |
|---|---|
| CN107837068A CN107837068A (en) | 2018-03-27 |
| CN107837068B true CN107837068B (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711202612.9A Active CN107837068B (en) | 2017-11-27 | 2017-11-27 | A kind of eyesight detection lamp box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2099547U (en) * | 1991-09-17 | 1992-03-25 | 王永雁 | Vision regulating range determining instrument |
| US5237351A (en) * | 1989-06-23 | 1993-08-17 | Canon Kabushiki Kaisha | Visual target apparatus |
| EP1372462A1 (en) * | 2001-03-30 | 2004-01-02 | Manfred Laufer | Method and device for assessing visual acuity |
-
2017
- 2017-11-27 CN CN201711202612.9A patent/CN107837068B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5237351A (en) * | 1989-06-23 | 1993-08-17 | Canon Kabushiki Kaisha | Visual target apparatus |
| CN2099547U (en) * | 1991-09-17 | 1992-03-25 | 王永雁 | Vision regulating range determining instrument |
| EP1372462A1 (en) * | 2001-03-30 | 2004-01-02 | Manfred Laufer | Method and device for assessing visual acuity |
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| Publication number | Publication date |
|---|---|
| CN107837068A (en) | 2018-03-27 |
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