Vision detection device

Abstract

The invention relates to the technical field of vision detection, in particular to a vision detection device which comprises an optometry unit, a jaw supporting plate is arranged on the inner side of the rear side of the optometry unit, observation glasses are arranged on the top of the jaw supporting plate, the optometry unit comprises an optometry unit body, and a concave sliding groove plate is fixedly connected to the bottom of the rear side of the optometry unit body. The left side of the concave sliding groove plate is provided with a sliding groove, the front side and the rear side of the top of the left side of the concave sliding groove plate are fixedly connected with lead screw connecting blocks, and the inner walls of the two lead screw connecting blocks are rotatably connected with lead screws. The device not only is simple and convenient to operate, reduces the complexity of manual operation, but also realizes accurate control on an observation glasses part through a series of innovative transmission modes, such as meshing of conical teeth, rotation of a screw rod and the like, so that the accuracy and the reliability of vision detection are ensured.

Description

Technical Field

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

[0002] Vision testing refers to the process of examining and evaluating the visual function of the eyes. This process usually includes checking for refractive errors such as myopia, hyperopia, astigmatism, and checking whether the eyes have other diseases or abnormalities that may affect vision. Vision testing is an important means of assessing personal vision health, especially in the fields of ophthalmology, health examinations, driving safety, etc. It has a wide range of applications. Through vision testing, vision problems can be discovered in a timely manner, and corresponding corrective measures can be taken to protect eye health and improve quality of life.

[0003] According to patent document CN110827982A, a self-service vision detection device is disclosed, which relates to the technical field of vision monitoring devices and includes a body (1). The body (1) is provided with an identification module (2), a test module (3), and a result output module (4); the identification module (2) is used to obtain the identity information of the testee, the test module (3) is used to test the vision condition of the testee, and the result output module (4) is used to output the test result of the testee. The self-service vision detection device provided by the present invention has a simple and attractive appearance, and the testee can perform the detection independently without manual processing, thereby reducing the cost of vision detection.

[0004] Traditional vision testing devices require the user to place their eyes against the observation hole of the vision testing device and position their eyes by looking at a pattern set by the staff inside the vision testing device so that medical staff can judge the vision condition based on the patient's response. However, this method is not only cumbersome to operate, but the observation hole does not allow the patient to observe through only one eye, which may lead to inaccurate test results if the patient suffers from strabismus or has a large difference in binocular vision. In addition, since the user's eyes need to be closely attached to the observation hole, it is easy to cause discomfort and may even lead to eye infection due to hygiene issues. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a vision detection device. The technical problems to be solved by the present invention are: the operation is cumbersome, and the observation hole cannot enable the patient to observe through only one eye, which may lead to inaccurate test results when the patient suffers from strabismus or has a large difference in binocular vision. In addition, since the user's eyes need to fit closely into the observation hole, it is easy to cause discomfort and may even lead to eye infection due to hygiene problems.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A vision testing device includes an optometrist, a chin rest is provided on the inner side of the rear side of the optometrist, and observation glasses are provided on the top of the chin rest;

[0008] The ophthalmometer includes an ophthalmometer body, a concave chute plate is fixedly connected to the bottom of the rear side of the ophthalmometer body, a chute is opened on the left side of the concave chute plate, and screw rod connecting blocks are fixedly connected to the front and rear sides of the top of the left side of the concave chute plate, and the inner walls of the two screw rod connecting blocks are rotatably connected to the screw rods;

[0009] The chin support plate includes a chin support plate body, and the left and right sides of the front side of the chin support plate body are fixedly connected to the glasses connecting rod;

[0010] The observation glasses include an observation mirror body, and shielding mechanisms are provided on both the left and right sides of the front side of the observation mirror body.

[0011] As a further solution of the present invention: a slider is slidably connected to the middle part of the top of the concave slide plate, and a transmission block is fixedly connected to the left side of the slider. The left side of the transmission block extends to the left side of the outer wall of the concave slide plate through the slide groove and the inner wall is threadedly connected to the outer wall of the screw rod. The top of the slider is fixedly connected to the transmission warehouse, and the left and right sides of the transmission warehouse are fixedly connected to side connecting plates, and the inner tops of the two side connecting plates are fixedly connected to the forehead fitting plates.

[0012] As a further solution of the present invention: a dual-axis motor is fixedly connected to the middle of the inner wall of the transmission bin, and the left and right ends of the dual-axis motor are fixedly connected with conical teeth, the outer walls of the two conical teeth are engaged with the second conical teeth, and the tops of the two second conical teeth are fixedly connected with a second screw rod, and the top ends of the two second screw rods extend to the top of the outer wall of the transmission bin and the top ends are rotatably connected to the left and right sides of the bottom of the forehead fitting plate, and the outer walls of the two second screw rods are threadedly connected to a C-shaped transmission block on one side of the top of the transmission bin, and the inner sides of the two C-shaped transmission blocks are rotatably connected to the left and right sides of the chin support plate body.

[0013] As a further solution of the present invention: the observation mirror body includes a nose pad, and the left and right sides of the nose pad are fixedly connected to the observation mirror shell, the rear sides of the two observation mirror shells are fixedly connected to the fitting frames, the outer sides of the two fitting frames are provided with fitting frame slide grooves, and the tops of the two fitting frames are both hollowed out.

[0014] As a further solution of the present invention: the outer sides of the two observation mirror shells are fixedly connected with a rotating rod connecting block, the tops of the two rotating rod connecting blocks are fixedly connected with a rotating rod, the tops of the two rotating rods are fixedly connected with a rotating column, the outer walls of the two rotating columns are fixedly connected with a turntable, the outer walls of the two rotating columns are covered with tracks, the side of the two tracks away from the turntable is covered with a second turntable, and the inner walls of the two second turntables are fixedly connected with a rotating shaft.

[0015] As a further solution of the present invention: the outer walls of the two turntables are each covered with a second track, the two second track sides away from the turntable are each covered with a third turntable, the inner walls of the two third turntables are fixedly connected with a second rotating column, the bottoms of the two second rotating columns are fixedly connected with a lens pallet transmission screw, the outer walls of the two lens pallet transmission screws are threadedly connected with a lens pallet transmission block, the inner sides of the two rotating rods extend to the inner wall of the fitting frame through the fitting frame slide groove and are fixedly connected with the lens pallet.

[0016] As a further solution of the present invention: the two shielding mechanisms each include a shielding mechanism connecting frame, the bottoms of the two shielding mechanism connecting frames are fixedly connected to the side of the bottom of the inner wall of the two observation mirror shells away from the nose pad, the top inner walls of the two shielding mechanism connecting frames are rotatably connected to a columnar vertical rotating rod, the top ends of the two columnar vertical rotating rods extend to the top of the outer wall of the observation mirror shell and are fixedly connected to the bottom ends of the two rotating shafts, the top and bottom of the outer walls of the two columnar vertical rotating rods are fixedly connected to a second rotating rod, the inner sides of the two groups of the second rotating rods are fixedly connected to a connecting frame, and the inner sides of the two second rotating rods away from the columnar vertical rotating rod are fixedly connected to a cross-shaped connecting column.

[0017] As a further solution of the present invention: the top ends of the two cross-shaped connecting columns are fixedly connected with third conical teeth, the front sides of the two cross-shaped connecting columns are rotatably connected with fourth conical teeth, the outer walls of the two fourth conical teeth are engaged with the outer walls of the two third conical teeth, the front sides of the two fourth conical teeth are fixedly connected with cross connecting blocks, the front sides of the two cross connecting blocks are fixedly connected with baffles, and the outer walls of the two baffles are movably connected to the front sides of the inner walls of the two observation mirror shells.

[0018] As a further solution of the present invention: the top rear sides of the two shielding mechanism connecting frames are fixedly connected with a rotating rod connecting an oblique rod, and the bottoms of the two rotating rod connecting an oblique rod are rotatably connected with a rotating rod on one side away from the shielding mechanism connecting frame.

[0019] As a further solution of the present invention: the sides of the two rotating rods away from the rotating rod connecting oblique rod are both rotatably connected to the cross connecting column oblique rod, and the front sides of the two cross connecting column oblique rods are fixedly connected to the outer walls of the two cross-shaped connecting columns.

[0020] The beneficial effects of the present invention are:

[0021] The present invention realizes efficient, stable and comfortable vision testing of patients by providing an ophthalmometer, a chin rest and observation glasses. The device is not only easy to operate and reduces the complexity of manual operation, but also realizes precise control of the observation glasses part through a series of innovative transmission methods, such as the engagement of conical teeth and the rotation of the screw, thereby ensuring the accuracy and reliability of vision testing. In addition, the fine-tuning function of the forehead fitting plate further reflects the present invention's attention to patient comfort, making the entire testing process more humane. Therefore, the vision testing device of the present invention has broad application prospects and market value, and will bring new technological breakthroughs and progress to the field of vision testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the main body three-dimensional separation structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the three-dimensional separation structure of the optometer of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the chin rest and observation glasses of the present invention;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the observation glasses of the present invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional separation structure of the observation glasses of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional separation structure of the observation mirror main body of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the shielding mechanism of the present invention;

[0030] Figure 9 It is a schematic diagram of the three-dimensional separation structure of the shielding mechanism of the present invention.

[0031] In the figure: 1. ophthalmometer; 11. ophthalmometer body; 12. concave slide plate; 13. slide; 14. screw rod connecting block; 15. screw rod; 16. slider; 17. transmission block; 18. transmission compartment; 19. dual-axis motor; 110. conical gear; 111. second conical gear; 112. second screw rod; 113. side connecting plate; 114. forehead fitting plate; 115. C-shaped transmission block; 2. chin rest; 21. chin rest body; 22. glasses connecting rod; 3. observation glasses; 31. observation mirror body; 311. nose pad; 312. observation mirror shell; 313. fitting frame; 314. fitting frame slide; 315. rotating rod connecting block; 316. rotating rod; 317. rotating column ; 318, turntable; 319, crawler; 3110, second turntable; 3111, rotating shaft; 3112, second crawler; 3113, third turntable; 3114, second rotating column; 3115, lens tray transmission screw; 3116, lens tray transmission block; 3117, lens tray; 32, shielding mechanism; 321, shielding mechanism connecting frame; 322, columnar vertical rotating rod; 323, rotating rod connecting oblique rod; 324, rotating rod; 325, second rotating rod; 326, connecting frame; 327, cross-shaped connecting column; 328, third conical tooth; 329, fourth conical tooth; 3210, cross connecting block; 3211, baffle; 3212, cross connecting column oblique rod. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1 As shown, the present invention provides a vision detection device, including an optometrist 1, a chin rest 2 is provided on the inner side of the rear side of the optometrist 1, and observation glasses 3 are provided on the top of the chin rest 2.

[0034] like Figure 2-9As shown, the ophthalmometer 1 includes an ophthalmometer body 11, a concave chute plate 12 is fixedly connected to the bottom of the rear side of the ophthalmometer body 11, a chute 13 is opened on the left side of the concave chute plate 12, and the front and rear sides of the left top of the concave chute plate 12 are fixedly connected to a screw connecting block 14, the inner walls of the two screw connecting blocks 14 are rotatably connected to the screw 15, and the middle part of the top of the concave chute plate 12 is slidably connected to a slider 16, and the left side of the slider 16 is fixedly connected to a transmission block 17, and the left side of the transmission block 17 extends to the left side of the outer wall of the concave chute plate 12 through the chute 13 and the inner wall is threadedly connected to the outer wall of the screw 15, the top of the slider 16 is fixedly connected to a transmission bin 18, and the left and right sides of the transmission bin 18 are fixedly connected to side connecting plates 113, and the two side connecting plates 113 The inner top is fixedly connected to the forehead fitting plate 114, the middle of the inner wall of the transmission chamber 18 is fixedly connected to the dual-axis motor 19, the left and right ends of the dual-axis motor 19 are fixedly connected to the conical teeth 110, the outer walls of the two conical teeth 110 are engaged with the second conical teeth 111, the tops of the two second conical teeth 111 are fixedly connected to the second screw rod 112, the tops of the two second screw rods 112 extend to the top of the outer wall of the transmission chamber 18 and the tops are rotatably connected to the left and right sides of the bottom of the forehead fitting plate 114, the outer walls of the two second screw rods 112 are threadedly connected to a C-shaped transmission block 115 on one side of the top of the transmission chamber 18, the inner sides of the two C-shaped transmission blocks 115 are rotatably connected to the left and right sides of the chin support plate body 21, and the chin support plate 2 includes a chin support plate body. 21. The left and right sides of the front side of the chin support plate main body 21 are fixedly connected to the glasses connecting rod 22. The observation glasses 3 include an observation mirror main body 31. The left and right sides of the front side of the observation mirror main body 31 are provided with a shielding mechanism 32. The observation mirror main body 31 includes a nose pad 311. The left and right sides of the nose pad 311 are fixedly connected to the observation mirror shell 312. The rear sides of the two observation mirror shells 312 are fixedly connected to the fitting frame 313. The outer sides of the two fitting frames 313 are provided with a fitting frame slide groove 314. The tops of the two fitting frames 313 are both hollowed out. The outer sides of the two observation mirror shells 312 are fixedly connected to the rotating rod connecting blocks 315. The tops of the two rotating rod connecting blocks 315 are fixedly connected to the rotating rod 316. The tops of the two rotating rods 316 are fixedly connected to the rotating column 317, the outer walls of the two rotating columns 317 are fixedly connected to the turntable 318, the outer walls of the two rotating columns 317 are covered with tracks 319, the sides of the two tracks 319 away from the turntable 318 are covered with second turntables 3110, the inner walls of the two second turntables 3110 are fixedly connected to the rotating shaft 3111, the outer walls of the two turntables 318 are covered with second tracks 3112, the sides of the two second tracks 3112 away from the turntable 318 are covered with third turntables 3113, the inner walls of the two third turntables 3113 are fixedly connected to the second rotating columns 3114, the bottoms of the two second rotating columns 3114 are fixedly connected to the lens tray transmission screws 3115, and the outer walls of the two lens tray transmission screws 3115 are threadedly connected to the lens tray transmission blocks 3116.The inner sides of the two rotating rods 316 extend to the inner wall of the fitting frame 313 through the fitting frame slide groove 314 and are fixedly connected to the lens support plate 3117. The two shielding mechanisms 32 each include a shielding mechanism connecting frame 321. The bottoms of the two shielding mechanism connecting frames 321 are fixedly connected to the bottom of the inner wall of the two observation mirror shells 312 away from the side of the nose pad 311. The top inner walls of the two shielding mechanism connecting frames 321 are rotatably connected to the columnar vertical rotating rods 322. The two columnar vertical rotating rods 32 The tops of the two second rotating rods 325 are fixedly connected to the top of the outer wall of the observation mirror housing 312 and are fixedly connected to the bottom ends of the two rotating shafts 3111. The tops and bottoms of the outer walls of the two columnar vertical rotating rods 322 are fixedly connected to the second rotating rods 325. The inner sides of the two sets of second rotating rods 325 are fixedly connected to the connecting frame 326. The inner sides of the two second rotating rods 325 away from the columnar vertical rotating rods 322 are fixedly connected to the cross-shaped connecting column 327. The tops of the two cross-shaped connecting columns 327 are fixedly connected to the The outer walls of the two fourth conical teeth 329 are meshed with the outer walls of the two third conical teeth 328. The front sides of the two fourth conical teeth 329 are fixedly connected to the cross connecting blocks 3210. The front sides of the two cross connecting blocks 3210 are fixedly connected to the baffles 3211. The outer walls of the two baffles 3211 are movably connected to the front sides of the inner walls of the two observation mirror shells 312. The top and rear sides of the two shielding mechanism connecting frames 321 are fixedly connected to the rotating rod connecting oblique rod 323. The bottom sides of the two rotating rod connecting oblique rods 323 are rotatably connected to the rotating rod 324 on the side away from the shielding mechanism connecting frame 321. The two rotating rods 324 are rotatably connected to the cross connecting column oblique rod 3212 on the side away from the rotating rod connecting oblique rod 323. The front sides of the two cross connecting column oblique rods 3212 are fixedly connected to the outer walls of the two cross connecting columns 327.

[0035] When vision testing is needed, the staff will first place the prepared flat lenses on the top of the two lens support conveying screws 3115. When the patient's eyes are fitted on the two fitting frames 313, when the patient needs to test a certain eye, he only needs to rotate the rotating shaft 3111 on that side. At this time, the rotating shaft 3111 drives the second turntable 3110 to rotate, the second turntable 3110 drives the crawler 319 to rotate, the crawler 319 drives the turntable 318 to rotate, the turntable 318 drives the rotating column 317 to rotate, the rotating column 317 drives the rotating rod 316 to rotate, the rotating rod 316 rotates, and the second crawler 3112 of the outer wall of the turntable 318 drives the third turntable 3113 to rotate, and the third turntable 3113 rotates to transmit the second turntable 3110 to the second turntable 3110. The rotating column 3114 drives the lens support plate transmission screw 3115 to transmit the lens support plate transmission block 3116, thereby driving the lens support plate 3117 holding the flat lens to move downward, so that the observation glasses 3 are in the pre-detection state. The lens support plate 3117 moves to move the flat lens to the front of the patient's eyes, which is convenient for the patient to observe the eye chart. At this time, the patient's eyes are attached to the inner wall of the fitting frame 313, and the nose pad 311 is attached to the patient's nose bridge, which increases the patient's comfort when observing the eye chart. At the same time, when the rotating shaft 3111 rotates, the rotating shaft 3111 will also drive the columnar vertical rotating rod 322 to rotate, and the rotation of the columnar vertical rotating rod 322 drives the second rotating rod 325 to rotate, and the second rotating rod 325 drives the connecting frame 326 and the cross-shaped connecting column 327 The third conical tooth 328 and the fourth conical tooth 329 are meshed with each other, so that the rotation of the third conical tooth 328 drives the fourth conical tooth 329 to rotate, and the rotation of the fourth conical tooth 329 drives the cross connection block 3210 to rotate, and the rotation of the cross connection block 3210 drives the baffle 3211 to rotate, so that when the baffle 3211 is rotated to one side by the rotating rod connection block 315, the baffle 3211 rotates from horizontal to vertical, so that the baffle 3211 no longer blocks the front side of the observation mirror housing 312 where the eye needs to be tested. At this time, the patient can observe the eye chart through the unblocked observation mirror housing 312 to perform a vision test, while the lens support plate 3117 on the other side remains in place, and the flat The lenses are used as spares so that they can be quickly switched when needed. In addition, in order to further improve the patient's comfort, the forehead fitting plate 114 can be fine-tuned according to the patient's forehead shape. By operating the dual-axis motor 19, it drives the conical teeth 110 to engage with the second conical teeth 111, thereby driving the second screw rod 112 to rotate. Since the C-type transmission block 115 is threadedly connected to the second screw rod 112, the rotation of the second screw rod 112 will be converted into a linear motion of the C-type transmission block 115, thereby driving the chin support plate main body 21 and the entire observation glasses 3 to move up and down until the forehead fitting plate 114 is tightly fitted to the patient's forehead. This design not only ensures the stability of the detection process, but also effectively avoids the situation where the detection results are affected by the shaking of the device.

[0036] The working principle of the present invention is as follows: when a vision test is required, the staff first places the pre-prepared flat lenses on the top of the two lens support conveying screws 3115. When the patient's eyes are fitted on the two fitting frames 313, when the patient needs to test a certain eye, he only needs to rotate the rotating shaft 3111 on that side. At this time, the rotating shaft 3111 drives the second turntable 3110 to rotate, the second turntable 3110 drives the crawler 319 to rotate, the crawler 319 drives the turntable 318 to rotate, the turntable 318 drives the rotating column 317 to rotate, the rotating column 317 drives the rotating rod 316 to rotate, the rotating rod 316 rotates, and the second crawler 3112 of the outer wall of the turntable 318 drives the third turntable 3113 to rotate. The third turntable 3113 rotates and then drives the second rotating column 3114 to drive the lens support plate transmission screw 3115 to drive the lens support plate transmission block 3116, thereby driving the lens support plate 3117 holding the flat lens to move downward, so that the observation glasses 3 are in the pre-detection state. The lens support plate 3117 moves to move the flat lens to the front of the patient's eyes, which is convenient for the patient to observe the eye chart. At this time, the patient's eyes are attached to the inner wall of the fitting frame 313, and the nose pad 311 is attached to the patient's nose bridge, which increases the patient's comfort when observing the eye chart. At the same time, when the rotating shaft 3111 rotates, the rotating shaft 3111 will also drive the columnar vertical rotating rod 322 to rotate, and the rotation of the columnar vertical rotating rod 322 drives the second rotating rod 325 to rotate. The second rotating rod 325 drives the connecting frame 326 and the cross-shaped connecting column 327 to rotate synchronously, and the cross-shaped connecting column 327 causes the third conical tooth 328 to engage with the fourth conical tooth 329. Therefore, the rotation of the third conical tooth 328 drives the fourth conical tooth 329 to rotate, and the rotation of the fourth conical tooth 329 drives the cross connecting block 3210 to rotate. The rotation of the cross connecting block 3210 drives the baffle 3211 to rotate, so that when the baffle 3211 is rotated to one side by the rotating rod connecting block 315, the rotation of the baffle 3211 changes from horizontal to vertical, so that the baffle 3211 no longer blocks the front side of the observation mirror housing 312 of the eye that needs to be tested. At this time, the patient can observe through the unblocked observation mirror housing 312 Check the eye chart and conduct vision testing, while the lens support plate 3117 on the other side remains in place, and the flat lens on it is used as a spare so that it can be quickly switched when needed. In addition, in order to further improve the patient's comfort, the forehead fitting plate 114 can be fine-tuned according to the patient's forehead shape. By operating the dual-axis motor 19, it drives the conical teeth 110 to engage with the second conical teeth 111, thereby driving the second screw rod 112 to rotate. Since the C-type transmission block 115 is threadedly connected to the second screw rod 112, the rotation of the second screw rod 112 will be converted into a linear motion of the C-type transmission block 115, thereby driving the chin support plate main body 21 and the entire observation glasses 3 part to move up and down until the forehead fitting plate 114 is tightly fitted to the patient's forehead.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A vision detection device, characterized in that: The invention comprises an ophthalmometer (1), wherein a chin support plate (2) is provided on the inner side of the rear side of the ophthalmometer (1), and observation glasses (3) are provided on the top of the chin support plate (2); The ophthalmometer (1) comprises an ophthalmometer body (11), a concave chute plate (12) is fixedly connected to the bottom of the rear side of the ophthalmometer body (11), a chute (13) is provided on the left side of the concave chute plate (12), and screw rod connecting blocks (14) are fixedly connected to the front and rear sides of the left top of the concave chute plate (12), and screw rods (15) are rotatably connected to the inner walls of the two screw rod connecting blocks (14); The chin support plate (2) comprises a chin support plate body (21), and both left and right sides of the front side of the chin support plate body (21) are fixedly connected to glasses connecting rods (22); The observation glasses (3) comprise an observation mirror body (31), and shielding mechanisms (32) are provided on both the left and right sides of the front side of the observation mirror body (31).

2. A vision detection device according to claim 1, characterized in that: The middle part of the top of the concave chute plate (12) is slidably connected to a slider (16), the left side of the slider (16) is fixedly connected to a transmission block (17), the left side of the transmission block (17) extends to the left side of the outer wall of the concave chute plate (12) through the chute (13), and the inner wall is threadedly connected to the outer wall of the screw rod (15), the top of the slider (16) is fixedly connected to a transmission bin (18), the left and right sides of the transmission bin (18) are fixedly connected to side connecting plates (113), and the inner tops of the two side connecting plates (113) are fixedly connected to forehead fitting plates (114).

3. A vision detection device according to claim 2, characterized in that: A dual-axis motor (19) is fixedly connected to the middle of the inner wall of the transmission chamber (18), and the left and right ends of the dual-axis motor (19) are fixedly connected to conical teeth (110), the outer walls of the two conical teeth (110) are engaged with second conical teeth (111), and the tops of the two second conical teeth (111) are fixedly connected to second screw rods (112), the tops of the two second screw rods (112) extend to the top of the outer wall of the transmission chamber (18) and the tops are rotatably connected to the left and right sides of the bottom of the forehead fitting plate (114), the outer walls of the two second screw rods (112) are threadedly connected to a C-type transmission block (115) on one side of the top of the transmission chamber (18), and the inner sides of the two C-type transmission blocks (115) are rotatably connected to the left and right sides of the chin support plate body (21).

4. The vision detection device according to claim 1, wherein: The observation mirror body (31) includes a nose pad (311), and the left and right sides of the nose pad (311) are fixedly connected to the observation mirror shell (312), and the rear sides of the two observation mirror shells (312) are fixedly connected to the fitting frame (313), and the outer sides of the two fitting frames (313) are provided with fitting frame sliding grooves (314), and the tops of the two fitting frames (313) are both hollowed out.

5. The vision detection device according to claim 4, characterized in that: The outer sides of the two observation mirror housings (312) are fixedly connected to a rotating rod connecting block (315), the tops of the two rotating rod connecting blocks (315) are fixedly connected to a rotating rod (316), the tops of the two rotating rods (316) are fixedly connected to a rotating column (317), the outer walls of the two rotating columns (317) are fixedly connected to a rotating disk (318), the outer walls of the two rotating columns (317) are covered with a track (319), the sides of the two tracks (319) away from the rotating disk (318) are covered with a second rotating disk (3110), and the inner walls of the two second rotating disks (3110) are fixedly connected to a rotating shaft (3111).

6. The vision detection device according to claim 5, characterized in that: The outer walls of the two turntables (318) are both covered with second tracks (3112), and the sides of the two second tracks (3112) away from the turntable (318) are both covered with third turntables (3113), the inner walls of the two third turntables (3113) are both fixedly connected with second rotating posts (3114), the bottoms of the two second rotating posts (3114) are both fixedly connected with lens support plate transmission screw rods (3115), the outer walls of the two lens support plate transmission screw rods (3115) are both threadedly connected with lens support plate transmission blocks (3116), and the inner sides of the two rotating rods (316) extend to the inner wall of the fitting frame (313) through the fitting frame slide groove (314) and are both fixedly connected with the lens support plate (3117).

7. The vision detection device according to claim 1, characterized in that: The two shielding mechanisms (32) each include a shielding mechanism connecting frame (321), the bottoms of the two shielding mechanism connecting frames (321) are fixedly connected to the bottom of the inner wall of the two observation mirror housings (312) on a side away from the nose pad (311), the top inner walls of the two shielding mechanism connecting frames (321) are rotatably connected to a columnar vertical rotating rod (322), the tops of the two columnar vertical rotating rods (322) extend to the top of the outer wall of the observation mirror housing (312) and are fixedly connected to the bottom ends of the two rotating shafts (3111), the tops and bottoms of the outer walls of the two columnar vertical rotating rods (322) are fixedly connected to a second rotating rod (325), the inner sides of the two groups of the second rotating rods (325) are fixedly connected to a connecting frame (326), and the inner sides of the two second rotating rods (325) on a side away from the columnar vertical rotating rod (322) are fixedly connected to a cross-shaped connecting column (327).

8. The vision detection device according to claim 7, characterized in that: The top ends of the two cross-shaped connecting posts (327) are fixedly connected to the third conical teeth (328); the front sides of the two cross-shaped connecting posts (327) are rotatably connected to the fourth conical teeth (329); the outer walls of the two fourth conical teeth (329) are engaged with the outer walls of the two third conical teeth (328); the front sides of the two fourth conical teeth (329) are fixedly connected to the cross-shaped connecting blocks (3210); the front sides of the two cross-shaped connecting blocks (3210) are fixedly connected to the baffles (3211); the outer walls of the two baffles (3211) are movably connected to the front sides of the inner walls of the two observation mirror shells (312).

9. The vision detection device according to claim 8, characterized in that: The top rear sides of the two shielding mechanism connecting frames (321) are both fixedly connected to a rotating rod connecting oblique rod (323), and the bottom sides of the two rotating rod connecting oblique rods (323) away from the shielding mechanism connecting frame (321) are both rotatably connected to a rotating rod (324).

10. The vision detection device according to claim 9, characterized in that: The sides of the two rotating rods (324) away from the rotating rod connecting oblique rod (323) are both rotatably connected to the cross connecting column oblique rod (3212), and the front sides of the two cross connecting column oblique rods (3212) are both fixedly connected to the outer walls of the two cross-shaped connecting columns (327).

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