An auxiliary vision testing device for ophthalmology

Abstract

The present invention provides an auxiliary vision testing device for ophthalmology, belonging to the technical field of medical devices. It includes a seat and a base. A vertical plate is fixedly installed vertically on the base, and a mirror is fixedly installed on the vertical plate. The seat includes a mounting block, and side plates are symmetrically and fixedly installed on the top wall of the mounting block. A covering assembly is provided on the side plates; the covering assembly includes a vertical groove opened on the side plates, and a mounting rod is movably installed in the vertical groove. By providing a covering plate, the person to be tested can rotate the covering plate to a suitable position and cover a single eye. At the same time, the first elastic telescopic rod can fix the horizontal position of the covering plate, and the second elastic telescopic rod can fix the covering plate in the vertical direction, so that it is not necessary for the person to be tested to hold the covering plate for a long time during the test, which may cause the person to be tested to be physically exhausted and affect the accuracy of the test results, thus playing a role in improving the test accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically, to an auxiliary vision testing device for ophthalmology. Background Art

[0002] Ophthalmology, whose full name is "Eye Disease Specialties", is a discipline that studies diseases occurring in the visual system, including the eyeball and its associated tissues.

[0003] Vision testing refers to the ability of the eyes to distinguish fine objects. The most commonly used eye chart is the Snellen Chart, which was invented by the Danish ophthalmologist Hermann Snellen in 1862. The person being tested for eyesight must stay 20 feet away from the eye chart. There are 11 lines of English words on the eye chart, all in capital letters. The font of the top line is the largest, and the fonts of the following lines become thinner and thinner. One needs to read the English letters from top to bottom, and there is a fraction beside each line of words, which is the result of the eyesight test.

[0004] In the prior art, during vision testing, in order to facilitate the tester to rest, the test is usually carried out in a sitting position. For example, a Chinese invention patent with the publication number CN108433694B discloses a convenient adjustable auxiliary vision testing device for ophthalmology. This device enables patients to take the test while sitting, can provide rest assistance for weak patients, can assist weak patients to normally conduct vision testing, and is beneficial to improving the accuracy of the vision test results of weak patients.

[0005] However, in the actual vision testing process, although the prior art can improve the accuracy of the test results to a certain extent, there are still certain limitations. Since the two eyes are usually tested separately during the test, and in order to improve the accuracy of the test for each eye, when testing one eye, the other eye needs to be covered. The prior art lacks an automatic covering device. When testing the eyes of weak patients, currently, weak patients need to hold the covering device manually for a long time to cover the eyes. Due to the weakness of the patients, it is difficult to hold the covering device precisely for a long time to cover the eyes, and for normal testers, holding the covering device for a long time will also cause soreness and even shaking in the hands, affecting the attention of the testers, and thus easily affecting the accuracy of the test results. Summary of the Invention

[0006] Aiming at the problem in the prior art that the eyes of weak patients to be tested cannot be automatically covered, and only a seat can be provided for weak patients to be tested, the purpose of the present invention is to provide an auxiliary vision testing device for ophthalmology.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] An auxiliary visual acuity testing device for ophthalmology, comprising a seat and a base. A vertical plate is fixedly installed vertically on the base, and a mirror is fixedly installed on the vertical plate. The seat includes a mounting block, and side plates are symmetrically and fixedly installed on the top wall of the mounting block. A covering assembly is provided on the side plates;

[0009] The covering assembly includes a vertical groove opened on the side plate. A mounting rod is movably installed in the vertical groove. A covering plate is fixedly installed at one end of the mounting rod away from the vertical groove. A turntable is rotatably installed on the bottom wall of the mounting rod. A first spring is fixedly installed between the turntable and the vertical groove. A ratchet wheel that is slidably matched with the mounting rod is rotatably installed on the side plate. A chute is opened on the ratchet wheel. A linkage rod that is slidably matched with the chute is fixedly installed on the mounting rod. A clockwork spring is installed between the ratchet wheel and the side plate. A control assembly that cooperates with the mounting rod is provided on the side plate.

[0010] Optionally, the control assembly includes a first horizontal groove opened on the side plate. A first elastic telescopic rod that cooperates with the ratchet wheel is slidably installed in the first horizontal groove. A second spring is fixedly installed between the first elastic telescopic rod and the first horizontal groove. Limiting grooves are uniformly opened on the mounting rod. A second horizontal groove is opened on the side plate. A second elastic telescopic rod that cooperates with the limiting grooves is slidably installed in the second horizontal groove. And one end of the second elastic telescopic rod close to the limiting grooves is beveled. A return spring is installed between the second elastic telescopic rod and the second horizontal groove. A push rod is vertically slidably installed on the side plate. The bottom wall of the push rod is beveled. A push block is fixedly installed on the side wall of the push rod. And an inclined groove that cooperates with the second elastic telescopic rod is opened on the push block. A third spring is fixedly installed between the top wall of the push block and the side plate. A disinfection assembly that cooperates with the covering plate is provided on the side plate.

[0011] Optionally, the disinfection assembly includes a disinfection cavity opened on the side plate. A feeding port communicating with the outside is opened on the top wall of the disinfection cavity. A plug plate is detachably installed in the feeding port. A disinfection plate is fixedly installed on the top wall of the side plate. A disinfection groove is opened on the disinfection plate. Disinfection holes that cooperate with the covering plate are uniformly opened on the side wall of the disinfection groove. A disinfection tube communicating with the disinfection cavity is inserted on the bottom wall of the disinfection groove. A gas supply assembly that cooperates with the disinfection cavity is provided on the mounting block.

[0012] Optionally, the air supply assembly includes a cavity formed in the mounting block. A horizontal plate is slidably mounted in the cavity. A fourth spring is fixedly installed between the bottom wall of the horizontal plate and the cavity. A connecting rod is fixedly installed on the top wall of the horizontal plate. A seating plate is fixedly installed on the top wall of the connecting rod. An exhaust valve is inserted into the cavity. A first air pipe communicating with the disinfection chamber is fixedly installed at the output end of the exhaust valve, and one end of the first air pipe away from the cavity is located above the liquid level of the disinfectant. An intake valve communicating with the outside of the input end is also inserted into the cavity. A cleaning assembly cooperating with the cavity is provided on the vertical plate.

[0013] Optionally, an installation groove is formed in the top wall of the cavity. A sealing plate cooperating with the first air pipe is slidably mounted in the installation groove. A communication hole communicating with the first air pipe is formed in the sealing plate. A fifth spring is installed between the top wall of the sealing plate and the installation groove.

[0014] Optionally, the cleaning assembly includes grooves symmetrically formed in the vertical plate. A cleaning rod is slidably mounted in the grooves. Cleaning hairs are uniformly fixedly installed on the side wall of the cleaning rod. An elastic telescopic tube is fixedly installed between the bottom wall of the cleaning rod and the grooves. A second air pipe communicating with the elastic telescopic tube is inserted into the cavity.

[0015] Optionally, a collection box is detachably installed on the vertical plate. Combing rods cooperating with the brush hairs are uniformly fixedly installed on the vertical plate.

[0016] Optionally, a sponge pad cooperating with the seating plate is fixedly installed on the top wall of the mounting block.

[0017] Optionally, a backrest is fixedly installed on the top wall of the mounting block. A pull ring is fixedly installed on the top wall of the cover plate.

[0018] Optionally, a slide rail slidably cooperating with the mounting block is fixedly installed on the base.

[0019] The technical solution provided by the present invention has at least the following beneficial effects compared with the prior art:

[0020] In the above solution, by providing the cover plate, the person to be tested can rotate the cover plate to a suitable position and cover a single eye. At the same time, the first elastic telescopic rod can fix the horizontal position of the cover plate, and the second elastic telescopic rod can fix the cover plate in the vertical direction, so that it is not necessary for the person to be tested to hold the cover plate for a long time during the test, which may cause the person to be tested to be physically exhausted and affect the accuracy of the test result. It plays a role in improving the test accuracy.

[0021] By setting up a disinfection component, when the person to be tested finishes the test and stands up, the fourth spring drives the piston plate to move upward and squeeze the gas in the cavity, so that the gas in the cavity flows through the first air pipe into the disinfection cavity, and drives the disinfectant to flow through the disinfection pipe into the disinfection tank, and then disinfects the cover plate through the disinfection holes on the disinfection tank. Since the cover plate is in direct contact with the eyes of the person to be tested, by disinfecting the cover plate, it effectively prevents the eyes of the person to be tested from being infected and affects the accuracy of the eye test of the person to be tested, further improving the test accuracy.

[0022] By setting up a sealing plate, as the horizontal plate moves upward and gradually contacts the sealing plate and applies a thrust to the sealing plate, then under the action of the thrust, the sealing plate drives the communication hole to move upward, and when the person to be tested disengages from the seating plate, the sealing plate drives the communication hole to contact the first air pipe. At this time, the gas in the cavity above the horizontal plate flows through the communication hole and the first air pipe into the disinfection cavity. Furthermore, it can disinfect the cover plate after the person to be tested disengages from the seat, thus preventing the disinfectant from contacting the eyes of the person to be tested and causing discomfort to the person to be tested, playing a role in improving the comfort of the person to be tested.

[0023] By setting up a cleaning component, when the person to be tested sits on the seat, the person to be tested drives the horizontal plate to move downward through the seating plate and the connecting rod, and squeezes the gas in the cavity below the horizontal plate, so that the gas flows through the second air pipe into the elastic telescopic tube, and then the elastic telescopic tube extends and drives the cleaning rod to move upward along the groove. During the upward movement of the cleaning rod, the cleaning hairs are driven to move upward, and the dust on the mirror can be cleaned during the movement of the cleaning hairs, thus effectively preventing the dust from affecting the test accuracy and further improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 is of the present invention Figure 1 an enlarged view of part A in;

[0027] Figure 3 is of the present invention Figure 1 an enlarged view of part B in;

[0028] Figure 4 is a combined view of the side plate, mounting rod and push rod of the present invention;

[0029] Figure 5For the present invention Figure 4 Enlarged view at position C in the present invention;

[0030] Figure 6 For the present invention Figure 4 Enlarged view at position D in the present invention;

[0031] Figure 7 Combined side view cross-sectional view of the disinfection plate and the side plate of the present invention;

[0032] Figure 8 Side view cross-sectional view of the mounting block, the horizontal plate and the seating plate of the present invention;

[0033] Figure 9 Combined side view cross-sectional view of the vertical plate, the elastic telescopic tube and the cleaning rod of the present invention.

[0034] [Reference numerals]

[0035] 1. Seat; 101. Mounting block; 102. Side plate; 103. Backrest;

[0036] 2. Base; 3. Vertical plate; 4. Mirror;

[0037] 5. Covering assembly; 501. Mounting rod; 502. Cover plate; 503. First spring; 504. Ratchet; 505. Linking rod; 506. Spring; 507. Turntable;

[0038] 6. Control assembly; 601. First elastic telescopic rod; 602. Second spring; 603. Limit groove; 604. Second elastic telescopic rod; 605. Return spring; 606. Push rod; 607. Push block; 608. Third spring;

[0039] 7. Disinfection assembly; 701. Disinfection chamber; 702. Plug plate; 703. Disinfection plate; 704. Disinfection groove; 705. Disinfection hole; 706. Disinfection tube;

[0040] 8. Air supply assembly; 801. Cavity; 802. Horizontal plate; 803. Fourth spring; 804. Connecting rod; 805. Seating plate; 806. Exhaust valve; 807. First air pipe; 808. Intake valve; 809. Sealing plate; 810. Communication hole; 811. Fifth spring;

[0041] 9. Cleaning assembly; 901. Groove; 902. Cleaning rod; 903. Cleaning hair; 904. Elastic telescopic tube; 905. Second air pipe; 906. Collection box; 907. Combing rod;

[0042] 10. Sponge pad; 11. Pull ring; 12. Slide rail.

[0043] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device, and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0044] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0045] It should be noted that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining an embodiment to describe a specific feature, structure, or characteristic, implementing such a feature, structure, or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0046] Generally, terms can be understood at least in part from their use in the context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that are not necessarily explicitly described.

[0047] It can be understood that the meanings of "on...", "above...", and "overhead of..." in the present invention should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intermediate features or layers therebetween, and "above..." or "overhead of..." not only means "above" or "overhead of" something, but also can include the meaning of being "above" or "overhead of" something with no intermediate features or layers therebetween.

[0048] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature with another or more elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.

[0049] As Figures 1 to 9 shown, an embodiment of the present invention provides an auxiliary vision testing device for ophthalmology, including a seat 1 and a base 2. A vertical plate 3 is fixedly installed vertically on the base 2, and a mirror 4 is fixedly installed on the vertical plate 3. The seat 1 includes a mounting block 101, and side plates 102 are symmetrically and fixedly installed on the top wall of the mounting block 101. A covering assembly 5 is provided on the side plates 102.

[0050] The covering assembly 5 includes a vertical groove opened on the side plate 102. A mounting rod 501 is movably installed in the vertical groove. A cover plate 502 is fixedly installed at one end of the mounting rod 501 away from the vertical groove. A turntable 507 is rotatably installed on the bottom wall of the mounting rod 501. A first spring 503 is fixedly installed between the turntable 507 and the vertical groove. A ratchet wheel 504 that is slidably engaged with the mounting rod 501 is rotatably installed on the side plate 102. A chute is opened on the ratchet wheel 504. A linkage rod 505 that is slidably engaged with the chute is fixedly installed on the mounting rod 501. A clockwork spring 506 is installed between the ratchet wheel 504 and the side plate 102. A control assembly 6 that cooperates with the mounting rod 501 is provided on the side plate 102.

[0051] The control component 6 includes a first horizontal groove formed in the side plate 102. A first elastic telescopic rod 601 that cooperates with the ratchet wheel 504 is slidably installed in the first horizontal groove. A second spring 602 is fixedly installed between the first elastic telescopic rod 601 and the first horizontal groove. Limiting grooves 603 are evenly formed in the mounting rod 501. A second horizontal groove is formed in the side plate 102. A second elastic telescopic rod 604 that cooperates with the limiting grooves 603 is slidably installed in the second horizontal groove. One end of the second elastic telescopic rod 604 close to the limiting grooves 603 is beveled. A return spring 605 is installed between the second elastic telescopic rod 604 and the second horizontal groove. A push rod 606 is vertically slidably installed on the side plate 102. The bottom wall of the push rod 606 is beveled. A push block 607 is fixedly installed on the side wall of the push rod 606. An inclined groove that cooperates with the second elastic telescopic rod 604 is formed in the push block 607. A third spring 608 is fixedly installed between the top wall of the push block 607 and the side plate 102. A disinfection component 7 that cooperates with the cover plate 502 is provided on the side plate 102.

[0052] In the initial state, the first spring 503 and the third spring 608 are in a freely extended state. At this time, the push rod 606 drives the first elastic telescopic rod 601 to move and stretch the second spring 602 through the inclined plane, and at this time, the push rod 606 drives the second elastic telescopic rod 604 to move and stretch the return spring 605 through the push block 607. When in use, the person to be tested first sits on the seat 1 and looks at the mirror 4. Since the existing test requires a test distance of five meters, in order to save space, a distance of 2.5 m can be maintained between the seat 1 and the mirror 4, and a test distance of 5 meters can be obtained through the mirror image. Then the person to be tested can first rotate the mounting rod 501 and make the cover plate 502 parallel to the eyes of the person to be tested. During the process of the person to be tested rotating the mounting rod 501, the mounting rod 501 drives the ratchet wheel 504 to rotate through the linkage rod 505. At this time, the clockwork spring 506 stores energy. Then, during the rotation of the ratchet wheel 504, the inclined surface of the ratchet teeth of the ratchet wheel 504 exerts a thrust on the first elastic telescopic rod 601, and the first elastic telescopic rod 601 contracts. When the ratchet teeth of the ratchet wheel 504 are disengaged from the first elastic telescopic rod 601, the first elastic telescopic rod 601 extends and inserts into the ratchet teeth of the ratchet wheel 504 again. Then, under the action of the first elastic telescopic rod 601, the ratchet wheel 504 cannot drive the mounting rod 501 to flip through the linkage rod 505, so that the cover plate 502 can be fixed in the horizontal direction. Then, when the cover plate 502 rotates to the appropriate position, the person to be tested can pull up the cover plate 502 and make the cover plate 502 cover the eyes of the person to be tested. During the upward movement of the cover plate 502, the limiting groove 603 and the turntable 507 are driven to move upward through the mounting rod 501. At this time, the first spring 503 is stretched and has a tendency to recover. As the limiting groove 603 moves upward, the limiting groove 603 will contact the inclined surface of the second elastic telescopic rod 604 and exert a thrust on the inclined surface of the second elastic telescopic rod 604. Then, under the action of the thrust, the output end of the second elastic telescopic rod 604 contracts and has a tendency to recover. When the second elastic telescopic rod 604 contacts the limiting groove 603 again, the second elastic telescopic rod 604 extends and inserts into the limiting groove 603. Then, under the action of the second elastic telescopic rod 604, the mounting rod 501 can be fixed in the vertical direction, that is, the cover plate 502 can be fixed with the cooperation of the first elastic telescopic rod 601 and the second elastic telescopic rod 604. Furthermore, it is not necessary for the person to be tested to hold the cover plate 502 for a long time during the test, which may cause the person to be tested to be physically exhausted and affect the accuracy of the test results, thus playing a role in improving the test accuracy.

[0053] When it is necessary to test the other eye, the person to be tested first pulls the push rod 606 on one side of the used cover plate 502, and then drives the push block 607 to move upward during the upward movement of the push rod 606, and disengages from the second elastic telescopic rod 604. At this time, the third spring 608 is compressed and has a tendency to recover. When the push block 607 disengages from the second spring 602, the return spring 605 contracts and drives the second elastic telescopic rod 604 to disengage from the limit groove 603. At this time, the first spring 503 contracts and drives the cover plate 502 to reset downward through the turntable 507 and the mounting rod 501. At the same time, during the upward movement of the push rod 606, it gradually disengages from the first elastic telescopic rod 601. At this time, the second spring 602 contracts and drives the first elastic telescopic rod 601 to disengage from the ratchet 504. At this time, the clockwork spring 506 extends and drives the cover plate 502 to rotate and reset through the ratchet 504, the linkage rod 505, and the mounting rod 501. When the cover plate 502 finishes resetting, the person to be tested can release the push rod 606, and then the third spring 608 extends and drives the push rod 606 to reset through the push block 607. When the push rod 606 finishes resetting, the person to be tested can pull the cover plate 502 on the other side and test the other eye. And when the test is over, the person to be tested can pull the push rod 606 on the other side again and make the cover plate 502 on the other side reset. That is, after the test is over, the person to be tested only needs to pull the push rod 606 and can make the cover plate 502 automatically reset, which plays a role in improving the test convenience.

[0054] As Figure 2 , Figure 7 , Figure 8 shown, the disinfection component 7 includes a disinfection cavity 701 opened on the side plate 102. A feeding port communicating with the outside is opened on the top wall of the disinfection cavity 701. A plug plate 702 is detachably installed in the feeding port. A disinfection plate 703 is fixedly installed on the top wall of the side plate 102. A disinfection groove 704 is opened on the disinfection plate 703. Disinfection holes 705 matching the cover plate 502 are uniformly opened on the side wall of the disinfection groove 704. A disinfection pipe 706 communicating with the disinfection cavity 701 is inserted into the bottom wall of the disinfection groove 704. An air supply component 8 matching the disinfection cavity 701 is provided on the mounting block 101.

[0055] The air supply component 8 includes a cavity 801 opened on the mounting block 101, a horizontal plate 802 is slidably mounted in the cavity 801, a fourth spring 803 is fixedly mounted between the bottom wall of the horizontal plate 802 and the cavity 801, a connecting rod 804 is fixedly mounted on the top wall of the horizontal plate 802, a riding plate 805 is fixedly mounted on the top wall of the connecting rod 804, an exhaust valve 806 is inserted in the cavity 801, a first air pipe 807 connected to the disinfection chamber 701 is fixedly mounted on the output end of the exhaust valve 806, and one end of the first air pipe 807 away from the cavity 801 is displaced above the liquid level of the disinfectant, an air inlet valve 808 connected to the outside of the input end is also inserted in the cavity 801, and a cleaning component 9 cooperating with the cavity 801 is provided on the vertical plate 3.

[0056] A mounting groove is provided on the top wall of the cavity 801, and a sealing plate 809 cooperating with the first air pipe 807 is slidably installed in the mounting groove. A connecting hole 810 connected to the first air pipe 807 is provided on the sealing plate 809, and a fifth spring 811 is installed between the top wall of the sealing plate 809 and the mounting groove.

[0057] By adopting the above technical solution, in the initial state, the fourth spring 803 is in a free extension state. When the person to be tested sits on the seat 1, the person to be tested will drive the riding plate 805 to move downward. During the downward movement of the riding plate 805, the horizontal plate 802 is driven downward by the connecting rod 804. At this time, the fourth spring 803 is compressed and has a tendency to recover. During the downward movement of the horizontal plate 802, the space above the horizontal plate 802 in the cavity 801 is inhaled through the intake valve 808. Then, when the test is over, the person to be tested first resets the cover plate 502. After the cover plate 502 is reset, the person to be tested can stand up from the seat 1 and break away from the seat 1. At this time, the fourth spring 803 The horizontal plate 802 stretches and drives the horizontal plate 802 to move upward. During the upward movement of the horizontal plate 802, the gas in the cavity 801 located above the horizontal plate 802 is squeezed, and the gas flows into the disinfection chamber 701 through the first air pipe 807. Then the pressure in the disinfection chamber 701 increases. Under the action of the pressure, the disinfectant in the disinfection chamber 701 flows into the disinfection tank 704 through the disinfection tube 706, and the cover plate 502 is disinfected through the disinfection hole 705 on the disinfection tank 704. Since the cover plate 502 is in direct contact with the eyes of the person to be tested, the cover plate 502 is disinfected, thereby effectively preventing the person to be tested from getting an eye infection and affecting the accuracy of the eye test of the person to be tested, thereby further improving the test accuracy.

[0058] In the initial state, the fifth spring 811 is in a free extended state. At this time, the sealing plate 809 blocks the first air pipe 807. Then, during the process of the fourth spring 803 driving the horizontal plate 802 to move upward, the gas above the horizontal plate 802 in the cavity 801 has a tendency to flow to the outside. Then, as the horizontal plate 802 moves upward and gradually contacts the sealing plate 809, a thrust is applied to the sealing plate 809. Then, under the action of the thrust, the sealing plate 809 drives the communication hole 810 to move upward. And when the person to be tested is separated from the seat plate 805, the sealing plate 809 drives the communication hole 810 to contact the first air pipe 807. At this time, the gas above the horizontal plate 802 in the cavity 801 flows into the disinfection cavity 701 through the communication hole 810 and the first air pipe 807. Thus, after the person to be tested is separated from the seat 1, the cover plate 502 can be disinfected, which can prevent the disinfectant from contacting the eyes of the person to be tested and causing discomfort to the person to be tested, playing a role in improving the comfort of the person to be tested.

[0059] As Figure 1 , Figure 3 , Figure 8 , Figure 9 shown, the cleaning assembly 9 includes grooves 901 symmetrically formed on the vertical plate 3. A cleaning rod 902 is slidably installed in the grooves 901. Cleaning hairs 903 are uniformly and fixedly installed on the side wall of the cleaning rod 902. An elastic telescopic tube 904 is fixedly installed between the bottom wall of the cleaning rod 902 and the grooves 901. A second air pipe 905 communicating with the elastic telescopic tube 904 is inserted into the cavity 801.

[0060] A collection box 906 is detachably installed on the vertical plate 3. Combing rods 907 cooperating with the bristles are uniformly and fixedly installed on the vertical plate 3.

[0061] By adopting the above technical solution, during the process of the person to be tested moving back and forth for testing, the shoes of the person to be tested may carry dust and adhere to the surface of the mirror 4. Then, after a long time of testing, a large amount of dust will accumulate on the surface of the mirror 4, which is likely to affect the accuracy of the test. When the person to be tested sits on the seat 1, the person to be tested drives the horizontal plate 802 to move downward through the seat plate 805 and the connecting rod 804, and compresses the gas below the horizontal plate 802 in the cavity 801, so that the gas flows into the elastic telescopic tube 904 through the second air pipe 905. Then, the elastic telescopic tube 904 extends and drives the cleaning rod 902 to move upward along the grooves 901. During the upward movement of the cleaning rod 902, the cleaning hairs 903 are driven to move upward. During the movement of the cleaning hairs 903, the dust on the mirror 4 can be cleaned, effectively preventing the dust from affecting the accuracy of the test and further improving the accuracy of the test.

[0062] When the person to be tested stands up at the end of the test, the fourth spring 803 extends and drives the horizontal plate 802 to move upward. During the upward movement of the horizontal plate 802, the space below the horizontal plate 802 in the cavity 801 inhales air from the elastic telescopic tube 904 through the second trachea 905. Then, the elastic telescopic tube 904 contracts and drives the cleaning brush 902 and the cleaning hair 903 to reset through the cleaning rod 902, playing a role in preparing for the next operation.

[0063] During the process of the cleaning rod 902 driving the cleaning hair 903 to move up and down, the cleaning hair 903 gradually contacts the combing rod 907 and impacts the combing rod 907. Then, under the action of inertia, the dust on the cleaning hair 903 separates from the cleaning hair 903, effectively preventing the dust from adhering to the mirror 4 again. At the same time, the combing rod 907 can also comb the cleaning hair 903, thereby improving the cleaning effect of the mirror 4. After the dust separates from the cleaning hair 903, the dust will fall into the collection box 906 under the action of gravity, facilitating the cleaning of the dust.

[0064] As Figure 8 shown, a sponge pad 10 cooperating with the sitting plate 805 is fixedly installed on the top wall of the mounting block 101.

[0065] By adopting the above technical solution, when the person to be tested sits on the sitting plate 805, the sponge pad 10 will deform and closely fit with the person to be tested, thereby increasing the force-bearing area of the person to be tested. Since the person to be tested has a weak body, by increasing the force-bearing area of the person to be tested, the pressure on the person to be tested can be reduced, thereby improving the comfort of the person to be tested and enabling the person to be tested to conduct the test with confidence, further improving the test accuracy.

[0066] As Figure 1 、 Figure 2 shown, a backrest 103 is fixedly installed on the top wall of the mounting block 101, and a pull ring 11 is fixedly installed on the top wall of the cover plate 502.

[0067] By adopting the above technical solution, after sitting on the seat 1, the person to be tested can lean against the backrest 103, thereby improving the comfort of the person to be tested and enabling the whole person of the person to be tested to relax, which is beneficial to improving the test accuracy. And when it is necessary to move the position of the cover plate 502, the person to be tested can move the position of the cover plate 502 through the pull ring 11, facilitating the movement of the cover plate 502 by the person to be tested. And after the test is over, while disinfecting the cover plate 502, the pull ring 11 can also be disinfected together, further preventing cross-infection.

[0068] As Figure 1 shown, a slide rail 12 slidably engaged with the mounting block 101 is fixedly installed on the base 2.

[0069] By adopting the above technical solution, when it is necessary to move the distance between the person to be tested and the mirror 4, the medical staff can push the base 2 on the slide rail 12, causing the seat 1 to move, thereby adjusting the distance between the person to be tested and the mirror 4. At the same time, the design of the slide rail 12 can also prevent pedestrians from walking between the mirror 4 and the seat 1 during the test, resulting in the person to be tested being unable to concentrate on the test, thus affecting the test accuracy, and playing a role in improving the test accuracy.

[0070] The working process of the present invention is as follows:

[0071] When the present invention is in use, first, the person to be tested sits on the seat 1, and then moves the cover plate 502 to a suitable position and covers one eye. At the same time, the first elastic telescopic rod 601 and the second elastic telescopic rod 604 can indirectly fix the position of the cover plate 502, so that it is not necessary for the person to be tested to hold the cover plate 502 for a long time during the test;

[0072] Then, when the person to be tested sits on the riding board 805, it will drive the horizontal plate 802 to move downward through the connecting rod 804, and squeeze the gas in the space below the cavity 801. Then the gas flows through the second air pipe 905 to the elastic telescopic tube 904 and makes the elastic telescopic tube 904 stretch. The stretched elastic telescopic tube 904 drives the cleaning brush 903 to clean the mirror 4 through the cleaning rod 902, thereby effectively preventing dust from affecting the test accuracy;

[0073] And after the test is over, the person to be tested can pull up the push rod 606. Then the first elastic telescopic rod 601 and the second elastic telescopic rod 604 move away from the mounting rod 501, and release the fixation of the cover plate 502. Then the first spring 503 and the spring 506 drive the cover plate 502 to reset;

[0074] Finally, after the person to be tested stands up, the horizontal plate 802 moves upward, so that the gas above the cavity 801 flows through the first air pipe 807 into the disinfection chamber 701. Then, under the action of the gas, the disinfectant liquid disinfects the cover plate 502 through the disinfection pipe 706, the disinfection tank 704, and the disinfection holes 705, thereby effectively preventing the person to be tested from being infected in the eyes and affecting the test accuracy of the person to be tested's eyes.

[0075] The present invention covers any substitutions, modifications, equivalent methods, and solutions made within the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, in order to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0076] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An auxiliary vision testing device for ophthalmology, comprising a seat and a base, a vertical plate fixedly mounted vertically on the base, a mirror fixedly mounted on the vertical plate, characterized in that: The seat comprises a mounting block, on the top wall of which side panels are symmetrically fixedly mounted, and a covering assembly is provided on the side panels; The cover assembly includes a vertical slot provided on the side plate, a mounting rod movably provided in the vertical slot, a cover plate fixedly provided at one end of the mounting rod away from the vertical slot, a turntable rotatably provided on the bottom wall of the mounting rod, a first spring fixedly provided between the turntable and the vertical slot, a ratchet rotatably provided on the side plate and slidably matched with the mounting rod, a sliding slot provided on the ratchet, a linkage rod slidably matched with the sliding slot fixedly provided on the mounting rod, a spring commonly provided between the ratchet and the side plate, and a control assembly matched with the mounting rod provided on the side plate; The control component includes a first horizontal groove provided on the side plate, a first elastic telescopic rod cooperating with the ratchet being slidably installed in the first horizontal groove, a second spring being fixedly installed between the first elastic telescopic rod and the first horizontal groove, a limiting groove being evenly provided on the mounting rod, a second horizontal groove being provided on the side plate, a second elastic telescopic rod cooperating with the limiting groove being slidably installed in the second horizontal groove, and an end of the second elastic telescopic rod close to the limiting groove is an inclined surface, a reset spring is jointly installed between the second elastic telescopic rod and the second horizontal groove, a push rod is vertically slidably installed on the side plate, the bottom wall of the push rod is an inclined surface, a push block is fixedly installed on the side wall of the push rod, and the push block is provided with an inclined groove cooperating with the second elastic telescopic rod, and a third spring is jointly fixedly installed between the top wall of the push block and the side plate.

2. The auxiliary vision testing device for ophthalmology according to claim 1, characterized in that: The side plate is provided with a disinfection component matched with the covering plate.

3. The auxiliary vision testing device for ophthalmology according to claim 2, characterized in that: The disinfection component includes a disinfection chamber provided on the side panel, a feeding port communicating with the outside is provided on the top wall of the disinfection chamber, a plug plate is detachably installed in the feeding port, a disinfection plate is fixedly installed on the top wall of the side panel, a disinfection groove is provided on the disinfection plate, disinfection holes cooperating with the cover plate are evenly provided on the side wall of the disinfection groove, a disinfection pipe communicating with the disinfection chamber is inserted on the bottom wall of the disinfection groove, and an air supply component cooperating with the disinfection chamber is provided on the mounting block.

4. The auxiliary vision testing device for ophthalmology according to claim 3, characterized in that: The air supply component includes a cavity opened on the mounting block, a horizontal plate is slidably mounted in the cavity, a fourth spring is fixedly mounted between the bottom wall of the horizontal plate and the cavity, a connecting rod is fixedly mounted on the top wall of the horizontal plate, a riding plate is fixedly mounted on the top wall of the connecting rod, an exhaust valve is inserted in the cavity, a first air pipe connected to the disinfection cavity is fixedly mounted on the output end of the exhaust valve, and an end of the first air pipe away from the cavity is located above the liquid level of the disinfectant, an air intake valve connected to the outside of the input end is also inserted in the cavity, and a cleaning component cooperating with the cavity is provided on the vertical plate.

5. The auxiliary vision testing device for ophthalmology according to claim 4, characterized in that: A mounting groove is provided on the top wall of the cavity, a sealing plate cooperating with the first air pipe is slidably installed in the mounting groove, a connecting hole connected with the first air pipe is provided on the sealing plate, and a fifth spring is installed between the top wall of the sealing plate and the mounting groove.

6. The auxiliary vision testing device for ophthalmology according to claim 5, characterized in that: The cleaning component includes grooves symmetrically opened on the vertical plate, a cleaning rod is slidably installed in the groove, cleaning bristles are evenly fixedly installed on the side walls of the cleaning rod, an elastic telescopic tube is fixedly installed between the bottom wall of the cleaning rod and the groove, and a second air pipe connected to the elastic telescopic tube is inserted into the cavity.

7. The auxiliary vision testing device for ophthalmology according to claim 6, characterized in that: A collecting box is detachably mounted on the vertical plate, and a combing rod matched with the bristles is evenly and fixedly mounted on the vertical plate.

8. The auxiliary vision testing device for ophthalmology according to claim 1, characterized in that: A sponge pad matched with the sitting board is fixedly mounted on the top wall of the mounting block.

9. The auxiliary vision testing device for ophthalmology according to claim 1, characterized in that: A backrest is fixedly mounted on the top wall of the mounting block, and a pull ring is fixedly mounted on the top wall of the cover plate.

10. The auxiliary vision testing device for ophthalmology according to claim 1, characterized in that: A slide rail which is slidably matched with the mounting block is fixedly mounted on the base.

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