CN112089585A - Vision training device - Google Patents
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- CN112089585A CN112089585A CN202011103818.8A CN202011103818A CN112089585A CN 112089585 A CN112089585 A CN 112089585A CN 202011103818 A CN202011103818 A CN 202011103818A CN 112089585 A CN112089585 A CN 112089585A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H5/00—Exercisers for the eyes
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Abstract
The invention discloses a vision training device, which comprises a shell, a visual target moving mechanism and at least one limiting piece, wherein the shell is provided with an observation window, and a detachable lens mounting piece is arranged for observation; the sighting target is arranged in the shell and used for generating light or images; the sighting target moving mechanism is arranged in the shell, is connected with the sighting target and is used for driving the sighting target to move towards the direction close to the observation window or move towards the direction far away from the observation window; the locating part is arranged in the shell and used for limiting the sighting mark. The vision training device can improve the vision of the user and is suitable for the user suffering from presbyopia.
Description
Technical Field
The invention relates to the technical field of medical care, in particular to an eyesight training device.
Background
With age, the eye accommodation capacity gradually decreases and more people suffer from presbyopia. In order to relieve presbyopia symptoms, vision can be improved by exercising eye muscles, such as exercising eye muscles by exercising the internal and external rotation ability of the eyeball and training three muscles for leading vision by enabling the visual axes of two eyes to constantly move: ciliary muscle, crystalline lens and internal rectus muscle relieve the paralytic stubborn state of the muscles through cooperative exercise, so that the muscles are strong and flexible, the adjusting capacity of eye muscles can be improved, and finally, the purpose of clearly imaging an object on retina and improving eyesight is achieved. Therefore, in order to alleviate the symptoms of presbyopia, a vision training device is needed to improve vision by exercising eye muscles.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a vision training device for improving vision.
In order to achieve the purpose, the invention provides the following technical scheme: an eyesight training device, the eyesight training device comprises
The device comprises a shell, a lens holder and a lens holder, wherein the shell is provided with an observation window which is provided with a detachable lens mounting piece;
the sighting target is arranged in the shell and used for generating light or images;
the sighting mark moving mechanism is arranged in the shell, is connected with the sighting mark and is used for driving the sighting mark to move towards the direction close to the observation window or move towards the direction far away from the observation window;
and the at least one limiting part is arranged in the shell and used for limiting the sighting mark.
Preferably, the vision training device includes two locating parts arranged in the casing, wherein one locating part is arranged between the observation window and the sighting mark, and the sighting mark is arranged between the other locating part and the observation window.
Preferably, the sighting mark comprises a plurality of light sources arranged at intervals along a first direction, and the first direction is a direction in which the eyes of the user are looking at the object; or the sighting target comprises a first light source group, a second light source group and a baffle, the baffle is arranged between the first light source group and the second light source group, the first light source group comprises a plurality of light sources which are arranged along a second direction perpendicular to the first direction at intervals, and the second light source group comprises a plurality of light sources which are arranged along a second direction perpendicular to the first direction at intervals.
Preferably, the sighting mark moving mechanism includes base guide rail, magnetic rod, base and coil, the base guide rail extends the setting along sighting mark moving direction, the magnetic rod with base guide rail parallel arrangement, the base slides and locates on the base guide rail, just set up on the base the sighting mark, the coil cover is located on the magnetic rod, and with the base links to each other.
Preferably, the sighting mark moving mechanism comprises a base guide rail, a base and a deflector rod, the base guide rail extends along the sighting mark moving direction, the base is arranged on the base guide rail in a sliding mode, the sighting mark is arranged on the base, and the deflector rod is connected with the base.
Preferably, the sighting mark moving mechanism comprises a base guide rail, a base and a pull rod, the base guide rail extends along the sighting mark moving direction, the base is arranged on the base guide rail in a sliding mode, the sighting mark is arranged on the base, one end of the pull rod is connected with the base, and a pull rod handle used for pulling or pushing the pull rod is arranged at the opposite end of the pull rod.
Preferably, sighting mark moving mechanism includes base guide rail, base and cylinder, the base guide rail extends the setting along sighting mark moving direction, the base slides and locates on the base guide rail, just set up on the base the sighting mark, the cylinder with the base links to each other.
Preferably, sighting mark moving mechanism includes base guide rail, base, driver plate, action wheel, follows driving wheel and transfer link, the base guide rail extends the setting along sighting mark moving direction, the base slides and locates on the base guide rail, just set up on the base the sighting mark, the transfer link is around setting up in the action wheel links to each other with the base with following on the driving wheel, the driver plate with the action wheel links to each other.
Preferably, the sighting mark driving device comprises a moving assembly, a first driving mechanism, a lever assembly, a base and a base guide rail, the first driving mechanism is connected with the moving component and moves back and forth along the moving direction of the sighting mark under the guiding action of the moving component, the first driving mechanism comprises a driving piece and a gear assembly connected with the driving piece, the driving piece is connected with the moving assembly, the gear assembly is driven by the driving piece to rotate in the circumferential direction, the lever assembly is connected with the gear assembly and the base, the lever component drives the base to move in the horizontal direction under the rotation action of the gear component, the base guide rail extends along the moving direction of the sighting target, the base is arranged on the base guide rail in a sliding manner, and the base is provided with the sighting mark, and the base drives the sighting mark to move back and forth along the base guide rail in the sighting mark moving direction under the driving action of the lever assembly.
The invention has the beneficial effects that:
(1) the vision training device provided by the invention has the advantages that the movement of the sighting marks watched by the user is utilized to promote the eye to generate the linkage adjustment from far to near and from near to far, so that the eye muscle is exercised, the effect of keeping and even improving the eye adjusting capacity and the eye collecting capacity is achieved, and the vision is improved.
(2) Through setting up the detachable lens installed part on the observation window for the applicable different users of eyesight training device have enlarged eyesight training device's application scope.
(3) Through setting up the locating part for the sighting mark removes in predetermineeing the within range, and the position of locating part is adjustable, is suitable for different users.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a sighting mark structure;
FIG. 3 is another schematic view of the visual target;
FIG. 4 is a block diagram illustrating a moving mechanism of the optotype according to an embodiment;
FIG. 5 is a block diagram schematically illustrating a structure of a moving mechanism of the optotype according to the second embodiment;
FIG. 6 is a block diagram schematically illustrating a structure of a movement mechanism for three optotypes according to an embodiment;
FIG. 7 is a block diagram showing the structure of a four-optotype moving mechanism according to an embodiment;
FIG. 8 is a block diagram schematically illustrating a structure of a movement mechanism for five optotypes according to an embodiment;
FIG. 9 is a block diagram showing the structure of a six-optotype moving mechanism according to an embodiment;
FIG. 10 is a block diagram showing the structure of a seven optotype moving mechanism according to the embodiment.
Reference numerals: 10. the device comprises a shell, 11, an observation window, 12, a lens mounting piece, 20, a sighting mark, 21, a first light source group, 22, a second light source group, 23, a baffle plate, 30, a sighting mark moving mechanism, 31, a moving component, 311, a moving guide rail, 32, a first driving mechanism, 321, a driving piece, 322, a first gear, 323, a second gear, 33, a lever component, 331, a first lever, 332, a second lever, 40, a limiting piece, L, a light source, a base guide rail, b, a base, c, a magnetic rod, d, a coil, e, a deflector rod, f, a dial, g, a driving wheel, h, a driven wheel, k, a transmission chain, m, a pull rod, n and a cylinder.
Detailed Description
The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The vision training device disclosed by the invention has the advantages that the movement of the sighting target 20 watched by a user is enabled to promote the eyes to generate the linkage adjustment from far to near and from near to far, so that the muscles (ciliary muscle, crystalline lens and internal rectus muscle) of the eyes are exercised, the effects of keeping and even improving the adjusting capacity and the gathering capacity of the eyes are achieved, and the vision is finally improved.
Referring to fig. 1 to 10, an eyesight training device disclosed in the present invention includes a housing 10, an optotype 20, an optotype moving mechanism 30, and at least one limiting member 40, wherein the housing 10 is used for accommodating the optotype 20, the optotype moving mechanism 30, and the limiting member 40, and is provided with an observation window 11, and the observation window 11 is used for allowing a user to observe the optotype 20; the sighting target 20 is arranged in the housing 10 and is used for generating light with a specific wavelength or generating a corresponding image, such as light with a wavelength of 650nm and the like, and can be a light-emitting device, such as a light-emitting diode, a laser tube and the like, or an image display device, such as a display panel and the like; the sighting target moving mechanism 30 is arranged in the shell 10, is connected with the sighting target 20 and is used for driving the sighting target 20 to move towards the observation window 11 or move towards the direction far away from the observation window 11; the limiting member 40 is disposed in the housing 10 and is used for limiting the visual target 20 so as to keep the visual target 20 within the stroke range.
In practice, the optotype 20 generates light or images with specific wavelengths, the user watches the optotype 20, and the optotype moving mechanism 30 further drives the optotype 20 to move back and forth, so that the eyes generate linkage adjustment from far to near and from near to far, and muscles (ciliary muscles, crystalline lenses and internal straight muscles) of the eyes are exercised, the adjusting capability and the gathering capability of the eyes are maintained or even improved, and the vision is improved.
As shown in fig. 1, the observation window 11 includes two windows 111 disposed at intervals for allowing both eyes of the user to observe the visual target 20 at the same time, but in other embodiments, one window 111 may be disposed according to actual requirements. Further, each viewing window 111 is provided with a detachable lens mount 12, and the lens mount 12 is used for mounting a lens, which can be selected according to the user's situation. Through setting up detachable lens installed part 12, the change of the lens in the window 111 of being convenient for vision training device can be suitable for different users, has enlarged vision training device's application scope.
As shown in fig. 2, the sighting target 20 includes a plurality of light sources L arranged at intervals along a first direction, the light sources L are electrically connected to a control circuit board (not shown), the light sources L can be independently or simultaneously lighted, and can be arranged according to actual requirements, the light sources L are light-emitting devices, such as light-emitting diodes, laser tubes, and the like, and can be selected according to actual requirements, and the first direction is a direction in which the eyes of the user are looking at the object.
Further, the plurality of light sources L arranged at intervals along the first direction are arranged in a line, and the plurality of light sources L are preferably arranged at equal intervals.
Or, as shown in fig. 3, the optotype 20 includes a first light source group 21, a second light source group 22 and a baffle 23, where the baffle 23 is disposed between the first light source group 21 and the second light source group 22, the first light source group 21 is used for the left eye of the user to observe, the second light source group 22 is used for the right eye of the user to observe, and the baffle 23 is used for separating the visual paths of the left and right eyes of the user to avoid the mutual interference between the first light source group 21 and the second light source group 22.
Further, the first light source group 21 includes a plurality of light sources L spaced apart in a second direction perpendicular to the first direction, and the second light source group 22 includes a plurality of light sources L spaced apart in the second direction perpendicular to the first direction, each of the light sources L being connected to the control circuit board, and the light sources L being light emitting devices such as light emitting diodes, laser tubes, and the like. The light sources L in the first light source group 21 emit light from inside to outside or from outside to inside, so that the user can have the effect that the optotype 20 is moved far and near while observing the change of the optotype 20. The second light source group 22 emits light from inside to outside or from outside to inside, as in the first light source group 21, so that the user can observe the visual target 20 while the visual target 20 is moving far and near.
In this embodiment, the plurality of light sources L in the first light source group 21 are preferably arranged at equal intervals and are arranged in a line, and the plurality of light sources L in the second light source group 22 are also preferably arranged at equal intervals and are also arranged in a line. The light emitting area of the light source L near the baffle 23 in the first light source group 21 is the largest, and the light emitting area of the light source L farthest from the baffle 23 is the smallest, and similarly, the light emitting area of the light source L near the baffle 23 in the second light source group 22 is the largest, and the light emitting area of the light source L farthest from the baffle 23 is the smallest, that is: the luminous area of the luminous source L close to the outer layer of the face is small, and the luminous area of the luminous source L close to the nose side is large. The light sources L in the first light source group 21 and the light sources L in the second light source group 22 are arranged in an axisymmetric manner, and the baffle 23 is arranged on the symmetry axis.
The visual target moving mechanism 30 will be described in detail with reference to fig. 4 to 10 with seven embodiments, and the visual target moving mechanism 30 includes, but is not limited to, the solutions described in the seven embodiments.
Example one
As shown in fig. 4, the target moving mechanism 30 includes at least one base rail a, a base b, a magnetic rod c and a coil d, wherein the base rail a extends along the moving direction of the target 20, the base b is slidably disposed on the base rail a, the target 20 is mounted on the base b, the magnetic rod c extends along the moving direction of the target 20, the magnetic rod c is disposed parallel to the base rail a, and the coil d is disposed on the magnetic rod c and connected to the base b. In operation, the coil d is energized to generate a magnetic field, which acts on the magnetic rod c to drive the base b and thus the optotype 20 to move.
Example two
As shown in fig. 5, the sighting mark moving mechanism 30 includes at least one base guide rail a, a base b and a deflector rod e, wherein the base guide rail a extends along the moving direction of the sighting mark 20, the base b is slidably disposed on the base guide rail a, the sighting mark 20 is mounted on the base b, and the deflector rod e is connected with the base b. When the visual target adjusting device is used, the base b is pushed to move by manually stirring the poking rod e, and the visual target 20 is driven to move in the moving process of the base b so as to adjust the distance between the visual target 20 and the eyes of a user.
EXAMPLE III
As shown in fig. 6, the optotype moving mechanism 30 includes at least one base guide a, a base b, a dial f, a driving pulley g, a driven pulley h, and a transmission chain k. Wherein, base guide rail a extends along sighting target 20 moving direction and sets up, and base b slides and locates on base guide rail a, sets up sighting target 20 on the base b, and conveying chain k encircles and sets up on action wheel g and follow driving wheel h to link to each other with base b, drive plate f links to each other with action wheel g. When the visual target is implemented, a user dials the dial f, the dial f drives the driving wheel g to rotate in the rotating process, the driving wheel g drives the transmission chain k wheel to rotate through the driven wheel h, the transmission chain k drives the base b to move in the rotating process, and the base b further drives the visual target 20 to move.
Example four
As shown in fig. 7, the visual target moving mechanism 30 includes at least one base rail a, a base b and a pull rod m, wherein the base rail a extends along the moving direction of the visual target 20, the base b is slidably disposed on the base rail a, the visual target 20 is mounted on the base b, the pull rod m extends along the moving direction of the visual target 20, the pull rod m is disposed parallel to the base rail a, one end of the pull rod m is connected to the base b, the opposite end is provided with a pull rod m handle, and the pull rod m handle is used for pulling or pushing the pull rod m. When the visual target is implemented, the handle of the pull rod m is manually pulled or pushed, so that the pull rod m moves, the base b is driven to move on the base guide rail a, and the visual target 20 is driven to move.
EXAMPLE five
As shown in fig. 8, the visual target moving mechanism 30 includes at least one base rail a, a base b and a cylinder n, wherein the base rail a extends along the moving direction of the visual target 20, the base b is slidably disposed on the base rail a, the visual target 20 is mounted on the base b, and the cylinder n is connected to the base b. In practice, the cylinder n drives the base b to move, and the base b further drives the sighting mark 20 to move.
EXAMPLE six
As shown in fig. 9, the optotype moving mechanism 30 includes a moving assembly 31, a first driving mechanism 32, a lever assembly 33, a base b, and a base guide a, wherein the moving assembly 31 is connected to the first driving mechanism 32 so that the first driving mechanism 32 can move back and forth in the moving direction of the optotype 20. In this embodiment, the moving assembly 31 specifically includes a moving slider (not shown) and a moving guide rail 311, the moving slider is connected to the first driving mechanism 32, two ends of the moving slider are respectively provided with a moving guide rail 311, each moving guide rail 311 extends along the moving direction of the visual target 20, the moving slider is in sliding fit with the moving guide rail 311, and the first driving mechanism 32 can move back and forth along the moving guide rail 311 in the moving direction of the visual target 20 through the moving slider.
The first driving mechanism 32 is connected to the lever assembly 33 for driving the lever assembly 33 to move back and forth along the moving direction of the optotype 20. In this embodiment, the first driving mechanism 32 specifically includes a driving member 321 and a gear set, the gear set includes a first gear 322 and a second gear 323, the driving member 321 is connected to the movable slider, the first gear 322 is connected to the driving member 321, the second gear 323 is meshed with the first gear 322, the driving member 321 drives the first gear 322 to rotate circumferentially, and the first gear 322 drives the second gear 323 to rotate synchronously and reversely circumferentially while rotating. In this embodiment, the driving member 321 is an electric motor, and the outer diameter of the first gear 322 is smaller than that of the second gear 323, that is, the first gear 322 is a small gear, and the second gear 323 is a large gear. The centers of the first gear 322 and the second gear 323 are mounted on the respective gear shafts to rotate circumferentially about the respective gear shafts. In other embodiments, two gears may be used, and more than three gears may be used.
The lever assembly 33 is connected to the second gear 323, and converts the circumferential rotation of the second gear 323 into the horizontal movement of the moving direction of the optotype 20. Specifically, in the present embodiment, the lever assembly 33 includes a first lever 331 and a second lever 332, the first lever 331 is located above the second lever 332, and two ends of the first lever 331 and the second lever 332 are a first end and a second end respectively. The first end of the first lever 331 is rotatably connected with the gear surface of the second gear 323 close to the outer edge thereof, the first end of the first lever 331 is arranged far away from the base b, and the second end is connected with the base b; the first end of the second lever 332 is rotatably connected to the gear surface of the second gear 323 near the outer edge thereof, and the first end of the second lever 332 is disposed near the base b and the second end is rotatably connected through a lever rotating shaft. The first end of the first lever 331 and the first end of the second lever 332 are located on both sides of the center of the second gear 323 and on the same line with the center of the second gear 323.
The first gear 322 is connected to the moving block through the driving member 321, the second gear 323 is connected to the moving block, and when the second gear 323 rotates, the first lever 331 is driven to move back and forth in the moving direction of the optotype 20, and the second lever 231 drives the second gear 323 to move in the moving direction of the optotype 20.
The base b is connected to the second end of the first lever 331, and moves back and forth along the moving direction of the optotype 20 by the driving of the first lever 331. The base b is slidably disposed on the base guide rail a, the visual target 20 is disposed on the base b, and the base b drives the visual target 20 to move back and forth along the base guide rail a in the moving direction of the visual target 20 under the driving action of the first lever 331. In this embodiment, the target moving mechanism 30 includes two spaced base rails a, a base b is slidably disposed on the two base rails a, and the target 20 on the base b is located between the two base rails a. Of course, in other embodiments, the number of base rails a may be set according to actual requirements.
EXAMPLE seven
As shown in fig. 10, the sighting mark moving mechanism 30 includes a second driving mechanism 34, a telescoping mechanism 35, a base b and a base guide rail a, wherein the second driving mechanism 34 is connected to the telescoping mechanism 35 for driving the telescoping mechanism 35 to move telescopically along the moving direction of the sighting mark 20. In this embodiment, the second driving mechanism 34 includes a driving source 341, a guiding rod 342 and a sliding member 343, the driving source 341 may be implemented as a manual dial or a motor, and the driving source 341 is connected to the guiding rod 342 for driving the guiding rod 342 to rotate circumferentially; the guide rod 342 extends in the moving direction of the optotype 20; the sliding member 343 is slidably connected to the guide rod 342 and connected to the telescopic mechanism 35, and the sliding member 343 drives the telescopic mechanism 35 to move telescopically along the moving direction of the optotype 20 under the rotation action of the guide rod 342. In this embodiment, the guide rod 342 is in threaded connection with the sliding member 343, specifically, the guide rod 342 is a screw rod with external threads, the sliding member 343 is a sliding nut with internal threads and sleeved on the guide rod 342, and the sliding nut is connected to the telescoping mechanism 35.
The telescopic mechanism 35 is connected to the base b, and drives the base b to move telescopically along the moving direction of the optotype 20 while telescopic. In this embodiment, the telescopic mechanism 35 specifically includes a plurality of sets of parallelogram levers 351, two adjacent sets of parallelogram levers 351 are connected through a lever rotating shaft, and two ends of the plurality of sets of parallelogram levers 351 on the extreme side of the moving direction of the optotype 20 have one end fixed and the other end connected with the base b. In other embodiments, only one set of parallelogram levers 351 may be provided.
The base b is arranged on the base guide rail a in a sliding mode, the sighting target 20 is arranged on the base b, and the base b drives the sighting target 20 to move back and forth along the base guide rail a in the moving direction of the sighting target 20 under the driving action of the telescopic mechanism 35. In this embodiment, the target moving mechanism 30 includes two spaced base rails a, a base b is slidably disposed on the two base rails a, and the target 20 on the base b is located between the two base rails a. Of course, in other embodiments, the number of base rails a may be set according to actual requirements.
Referring to fig. 1 and 4, two limiting members 40 are disposed in the housing 10, wherein one of the limiting members 40 is disposed between the observation window 11 and the target 20, and the target 20 is disposed between the observation window 11 and the other limiting member 40. Of course, in other embodiments, one limiting member 40 may be provided. In practice, when the target 20 moves to the limiting member 40, the limiting member 40 limits the movement of the target 20, so that the distance between the target 20 and the eyes of the user is maintained within a reasonable range.
The vision training device provided by the invention has the advantages that the movement of the sighting target 20 watched by the user promotes the eye to generate the linkage adjustment from far to near and from near to far, so that the eye muscle is exercised, the effect of keeping and even improving the eye adjusting capacity and the eye collecting capacity is achieved, and the vision is improved.
Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.
Claims (9)
1. An eyesight training device, comprising
The device comprises a shell, a lens holder and a lens fixing piece, wherein an observation window is arranged on the shell, and a detachable lens mounting piece is arranged on the observation window;
the sighting target is arranged in the shell and used for generating light or images;
the sighting mark moving mechanism is arranged in the shell, is connected with the sighting mark and is used for driving the sighting mark to move towards the direction close to the observation window or move towards the direction far away from the observation window;
and the at least one limiting part is arranged in the shell and used for limiting the sighting mark.
2. A vision training device as recited in claim 1 wherein said vision training device comprises two stops disposed within a housing, one of said stops being disposed between said viewing window and said visual target, said visual target being disposed between the other of said stops and said viewing window.
3. A vision training device as defined in claim 1 wherein the optotype includes a plurality of light sources spaced apart in a first direction, the first direction being a direction in which the user's eyes are looking at the object; or the sighting target comprises a first light source group, a second light source group and a baffle, the baffle is arranged between the first light source group and the second light source group, the first light source group comprises a plurality of light sources which are arranged along a second direction perpendicular to the first direction at intervals, and the second light source group comprises a plurality of light sources which are arranged along a second direction perpendicular to the first direction at intervals.
4. The vision training device of claim 1, wherein the visual target moving mechanism comprises a base guide rail, a magnetic rod, a base and a coil, the base guide rail extends along the movement direction of the visual target, the magnetic rod is parallel to the base guide rail, the base is slidably disposed on the base guide rail, the visual target is disposed on the base, and the coil is sleeved on the magnetic rod and connected with the base.
5. The vision training device of claim 1, wherein the sighting mark moving mechanism comprises a base guide rail, a base and a deflector rod, the base guide rail extends along the sighting mark moving direction, the base is slidably arranged on the base guide rail, the sighting mark is arranged on the base, and the deflector rod is connected with the base.
6. The vision training device of claim 1, wherein the visual target moving mechanism comprises a base guide rail, a base and a pull rod, the base guide rail extends along the movement direction of the visual target, the base is slidably arranged on the base guide rail, the visual target is arranged on the base, one end of the pull rod is connected with the base, and the opposite end of the pull rod is provided with a pull rod handle for pulling or pushing the pull rod.
7. The vision training device of claim 1, wherein the visual target moving mechanism comprises a base guide rail, a base and a cylinder, the base guide rail extends along the moving direction of the visual target, the base is slidably arranged on the base guide rail, the visual target is arranged on the base, and the cylinder is connected with the base.
8. The vision training device of claim 1, wherein the sighting mark moving mechanism comprises a base guide rail, a base, a driving plate, a driving wheel, a driven wheel and a transmission chain, the base guide rail extends along the sighting mark moving direction, the base is slidably arranged on the base guide rail, the sighting mark is arranged on the base, the transmission chain is arranged on the driving wheel and the driven wheel in a winding manner and is connected with the base, and the driving plate is connected with the driving wheel.
9. The vision training device of claim 1, wherein the visual target driving device comprises a moving assembly, a first driving mechanism, a lever assembly, a base and a base guide rail, the first driving mechanism is connected with the moving assembly, the first driving mechanism moves back and forth along the moving direction of the visual target under the guiding action of the moving assembly, the first driving mechanism comprises a driving member and a gear assembly connected with the driving member, the driving member is connected with the moving assembly, the gear assembly rotates circumferentially under the driving of the driving member, the lever assembly is connected with the gear assembly and the base, the lever assembly drives the base to move in the horizontal direction under the rotating action of the gear assembly, the base guide rail extends along the moving direction of the visual target, the base is slidably arranged on the base guide rail, and the visual target is arranged on the base, the base drives the sighting target to move back and forth along the base guide rail in the sighting target moving direction under the driving action of the lever assembly.
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