CN108245127B

CN108245127B - Be used for ophthalmology easily supplementary eyesight testing arrangement of adjustment type

Info

Publication number: CN108245127B
Application number: CN201810047114.XA
Authority: CN
Inventors: 左秋野; 钟一霞; 邱长根
Original assignee: Foshan Aier Eye Hospital Co Ltd
Current assignee: Foshan Aier Eye Hospital Co Ltd
Priority date: 2018-01-18
Filing date: 2018-01-18
Publication date: 2020-07-24
Anticipated expiration: 2038-01-18
Also published as: CN108245127A

Abstract

The invention relates to an auxiliary vision testing device for ophthalmology, in particular to an easily-adjusted auxiliary vision testing device for ophthalmology. The invention aims to provide an easily-adjustable auxiliary vision testing device for ophthalmology, which can provide rest assistance for a weak patient, can assist the weak patient in normally testing vision and can be easily adjusted. In order to solve the above technical problems, the present invention provides such an easy-to-adjust type auxiliary vision testing apparatus for ophthalmology. The easily-adjustable auxiliary vision testing device for ophthalmology, provided by the invention, can provide rest assistance for the weak patient, assist the weak patient to normally perform vision testing, can be easily adjusted, can assist the weak patient to perform accurate vision testing, is beneficial to subsequent diagnosis and treatment of the illness state of the weak patient, is beneficial to the physical health of the patient, and is simple in structure, convenient to operate, easy to produce and manufacture.

Description

Be used for ophthalmology easily supplementary eyesight testing arrangement of adjustment type

Technical Field

The invention relates to an auxiliary vision testing device for ophthalmology, in particular to an easily-adjusted auxiliary vision testing device for ophthalmology.

Background

The ophthalmology is called "ophthalmology specialty", and the ophthalmology is a discipline for researching diseases occurring in the visual system including eyeball and tissues related to the eyeball, and common ophthalmology diseases are: central serous retinopathy, dry eye, sympathetic ophthalmia, nyctalopia, blindness, amblyopia, astigmatism, trachoma, cataract, diabetic retinopathy, conjunctivitis, presbyopia, achromatopsia, iridochromism, retinitis pigmentosa, central retinal artery occlusion, retinal detachment, myopia, hyperopia, pinprick, snow blindness, aragonima, glaucoma, muscae volitantes and the like. The eye chart is a chart for measuring vision. The domestic visual chart comprises: international standard visual acuity chart, visual acuity chart logarithmic visual acuity chart and the like. The visual acuity chart and the distance visual acuity chart are functionally classified. The visual acuity chart is based on the principle of viewing angle. The inspection of vision is generally divided into far vision and near vision, and the far vision mostly adopts an international standard visual chart which is composed of E characters with different openings and different directions. The visual chart for medical detection mainly detects central vision, namely, detects foveal acuity in a macular area of retina, so that the preliminary condition of visual function can be simply and quickly known, and the visual chart has important significance for clinical diagnosis and treatment of eye diseases.

Present patient all carries out the eyesight test under the state of standing, but the patient of weak is difficult to stand for a long time, lead to the patient of weak to be difficult to the normal eyesight test that carries on, and present eyesight test device all adopts fixed structure, can't adjust, thereby lead to unable accurate eyesight test result that draws, seriously influence subsequent diagnosis and treatment, be unfavorable for patient's healthy, consequently need urgent research and development one kind can provide rest supplementary for the patient of weak, can assist the patient of weak to normally carry out the eyesight test, can adjust easily be used for the easy adjustment type auxiliary vision test device of ophthalmology easily.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects that the existing patients are difficult to stand for a long time and the weak patients are difficult to normally perform vision tests, and the existing vision testing devices are fixed and cannot be adjusted, so that the accurate vision testing results cannot be obtained, and the subsequent diagnosis and treatment are seriously influenced.

(2) Technical scheme

In order to solve the technical problems, the invention provides an easy-to-adjust auxiliary vision testing device for ophthalmology, which comprises a base, a large fixing plate, a first fixing rod, a large guide rod, a second fixing rod, a large guide sleeve, a large positioning screw rod, a connecting rod, a crank, a first rotating shaft, a first bearing, a connecting plate, a chair back, a chair seat, a side plate, a leg plate, a pedal, a first spring, a first rotating disk, a first guide sleeve, a first positioning screw rod, a long guide rod, a mounting plate and a visual chart, wherein the large fixing plate is arranged at the right part of the upper side of the base, the first fixing rod is arranged at the lower part of the front side of the large fixing plate, the large guide rod is connected onto the first fixing rod, the second fixing rod is connected onto the upper part of the front side of the large fixing plate, the large guide sleeve is slidably sleeved onto the large guide rod, the large guide sleeve is arranged at, the lower end of the connecting rod is hinged with a crank, the crank is positioned in front of the first rotating shaft and is connected with the first rotating shaft, the lower part of the large fixing plate is provided with a first bearing, the first bearing is positioned below the first fixing rod and is in interference connection with the first rotating shaft, the left side surface of the large guide sleeve is connected with a connecting plate, the left side of the connecting plate is connected with a chair back, the bottom of the chair back is connected with a chair seat, the top of the chair seat is connected with a side plate, the side plate is positioned on the left side of the chair back, the front and back symmetrical arrangement of the side plate is adopted, the left part of the lower side of the chair seat is connected with a leg plate, the bottom of the leg plate is connected with a pedal, the pedal is contacted with the base, a first spring is connected between the bottom of the chair seat and the base, the rear end of the first, the right side surface of the mounting plate is provided with an eye chart.

Preferably, the blackboard eraser is positioned on the right side of the visual chart, the blackboard eraser is contacted with the visual chart, the right side of the blackboard eraser is connected with the second guide sleeve, the second positioning screw rod is arranged on the front side surface of the second guide sleeve, the second guide sleeve is sleeved on the small guide rod in a sliding mode, the second spring is sleeved on the small guide rod, the second spring is connected between the upper side of the second guide sleeve and the lower side of the long guide rod, the first pulley is arranged on the left part of the front side of the long guide rod, the pull wire is wound on the first pulley, the left end of the pull wire is connected with the right side of the second guide sleeve, the second pulley is arranged on the right part of the front side of the long guide rod, the pull wire is wound on the second pulley, the sleeve is arranged on the front side of the connecting plate, and the third positioning screw rod is arranged on the front side of the sleeve, the base middle part top is equipped with the reel, and the reel rear side is equipped with first little support, and first little support is connected with the base, and the sleeve pipe is passed to acting as go-between, and the winding of acting as go-between is on the reel.

Preferably, the rotary table further comprises a worm wheel, a worm, a second rotating shaft, a second bearing, a second rotating disc and a second small support, the worm wheel is arranged on the rear side face of the first rotating disc, the worm is arranged below the worm wheel and meshed with the worm, the worm is arranged on the second rotating shaft, the second rotating shaft is in interference connection with the second bearing, the second bearing is embedded on the upper portion of the second small support, the second rotating disc is connected to the left end of the second rotating shaft, the second small support is arranged on the upper side of the base, and the second small support is located on the left side of the first rotating disc.

Preferably, the device also comprises a first gear, a second gear, a rotating motor and a third small support, wherein the right end of the second rotating shaft is connected with the first gear, the first gear is positioned on the right side of the worm wheel, the second gear is arranged below the first gear and meshed with the first gear, the rotating motor is arranged on the right side of the second gear, an output shaft of the rotating motor is connected with the second gear, the third small support is arranged on the right side of the rotating motor and connected with the rotating motor, and the bottom of the third small support is connected with the base.

Preferably, still including push pedal, first gyro wheel and second gyro wheel, the base right side is connected with the push pedal, and base downside right part is equipped with first gyro wheel, and base downside left part is equipped with the second gyro wheel.

The working principle is as follows: because the invention comprises a base, a large fixing plate, a first fixing rod, a large guide rod, a second fixing rod, a large guide sleeve, a large positioning screw rod, a connecting rod, a crank, a first rotating shaft, a first bearing, a connecting plate, a chair back, a chair seat, a side plate, a leg plate, a pedal, a first spring, a first rotating disk, a first guide sleeve, a first positioning screw rod, a long guide rod, a mounting plate and an eye chart, the invention is suitable for patients with weak bodies and difficult standing for a long time, a medical worker firstly sits on the chair seat, the side plate provides protection for the patients, the patients can lean on the chair back, the pedal and the leg plate respectively provide support for the feet and the legs of the patients, the first spring can provide buffer for the patients on the chair seat, then the medical worker rotates the first rotating disk, the first rotating disk drives the crank to rotate through the first rotating shaft, and the crank drives the connecting rod to move up and, the connecting rod drives the large guide sleeve to slide up and down on the large guide rod, the large guide sleeve drives the chair back, the chair seat, the side plate, the leg plate and the pedal through the connecting plate, and the patient moves up and down together.

Because the multifunctional visual chart cleaning device further comprises a scrubbing brush, a second guide sleeve, a second positioning screw rod, a small guide rod, a second spring, a first pulley, a pull wire, a second pulley, a sleeve, a third positioning screw rod, a reel and a first small support, when the visual chart is required to be cleaned, a medical worker firstly rotates the reel, the reel winds or loosens the pull wire by the reel so as to adjust the pull wire to a proper length, then screws the third positioning screw rod tightly so as to fix the pull wire in the sleeve, then when the medical worker drives the connecting plate to move up and down by the large guide sleeve, the connecting plate can drive the pull wire to move by the sleeve and the third positioning screw rod, the second pulley and the first pulley provide sliding guide for the pull wire, and the pull wire can drive the second guide sleeve and the scrubbing brush to move up and down in the up and down movement of the connecting plate, thereby the scrubbing brush cleans the visual chart, simultaneously under the dual function of gravity and second spring, the scrubbing brush can be quick move downwards to can clean the visual chart fast powerfully, when need not clean the visual chart, can slide the top of visual chart with the second uide bushing, then screw up the second positioning screw and can fix, thereby avoid causing the interference to patient's eyesight test.

Because still including the worm wheel, the worm, the second rotation axis, the second bearing, the little support of second rotary disk and second, so medical staff can rotate the second rotary disk, the second rotary disk drives the worm through the second rotation axis and rotates, the worm thereby drives the worm wheel and rotates, the worm wheel thereby drives first rotary disk and rotates, thereby can utilize the auto-lock function of worm and worm wheel, light easy fixes first rotary disk, prevent that first rotary disk from turning in disorder, further work load that alleviates medical staff, and time and labor are saved more.

Because still including first gear, the second gear, rotating electrical machines and third little support, second rotation axis right-hand member is connected with first gear, first gear is located the right side of worm wheel, first gear below is equipped with the second gear, the second gear meshes with first gear mutually, the second gear right side is equipped with rotating electrical machines, rotating electrical machines's output shaft and second gear are connected, rotating electrical machines's right side is equipped with the third little support, the third little support is connected with rotating electrical machines, third little support bottom is connected with the base, so medical staff can start rotating electrical machines and operate, rotating electrical machines drives first gear through the second gear and rotates, thereby first gear drives the second rotation axis and rotates, utilize rotating electrical machines to replace artifical manual operation, medical staff's intensity of labour has been reduced, labour saving and time saving more.

The medical staff can push the medical staff by the push plate and move the medical staff to a required place by the first roller and the second roller.

(3) Advantageous effects

The easily-adjustable auxiliary vision testing device for ophthalmology, provided by the invention, can provide rest assistance for weak patients, can assist the weak patients to normally perform vision testing, can be easily adjusted, can assist the weak patients to perform accurate vision testing, is beneficial to subsequent diagnosis and treatment of illness states of the weak patients, is beneficial to physical health of the patients, and is simple in structure, convenient to operate, easy to maintain, low in maintenance cost, easy to produce and manufacture.

Drawings

Fig. 1 is a schematic front view structure of the present invention.

Fig. 2 is a front view structural diagram of the large fixing plate of the present invention.

Fig. 3 is a right side view structural schematic diagram of the crank of the present invention.

Fig. 4 is a front view structure diagram of the stay wire of the present invention.

Fig. 5 is a right side view structural diagram of a second small bracket of the invention.

Fig. 6 is a right side view structural schematic diagram of the first gear of the present invention.

FIG. 7 is a front view structure diagram of the push plate of the present invention.

The labels in the figures are: 1-base, 2-big fixed plate, 3-first fixed rod, 4-big guide rod, 5-second fixed rod, 6-big guide sleeve, 7-big positioning screw rod, 8-connecting rod, 9-crank, 10-first rotating shaft, 11-first bearing, 12-connecting plate, 13-chair back, 14-chair seat, 15-side plate, 16-leg plate, 17-pedal, 18-first spring, 19-first rotating disk, 20-first guide sleeve, 21-first positioning screw rod, 22-long guide rod, 23-mounting plate, 24-visual chart, 31-scrubbing brush, 32-second guide sleeve, 33-second positioning screw rod, 34-small guide rod, 35-second spring, 36-first pulley, 37-pull wire, 38-second pulley, 39-sleeve, 40-third positioning screw, 41-reel, 42-first small bracket, 51-worm gear, 52-worm, 53-second rotating shaft, 54-second bearing, 55-second rotating disk, 56-second small bracket, 61-first gear, 62-second gear, 63-rotating motor, 64-third small bracket, 71-push plate, 72-first roller, 73-second roller.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

An easily adjustable auxiliary vision testing device for ophthalmology, as shown in figures 1-7, comprises a base 1, a large fixing plate 2, a first fixing rod 3, a large guide rod 4, a second fixing rod 5, a large guide sleeve 6, a large positioning screw 7, a connecting rod 8, a crank 9, a first rotating shaft 10, a first bearing 11, a connecting plate 12, a chair back 13, a chair seat 14, a side plate 15, a leg plate 16, a pedal 17, a first spring 18, a first rotating disk 19, a first guide sleeve 20, a first positioning screw 21, a long guide rod 22, a mounting plate 23 and a visual chart 24, wherein the large fixing plate 2 is arranged at the right part of the upper side of the base 1, the first fixing rod 3 is arranged at the lower part of the front side of the large fixing plate 2, the large guide rod 4 is connected to the first fixing rod 3, the second fixing rod 5 is connected to the upper end of the large guide rod 4, the rear end of the second fixing rod 5 is connected to the upper part of the front, the right side of the large guide sleeve 6 is provided with a large positioning screw 7, the front side surface of the large guide sleeve 6 is hinged with a connecting rod 8, the lower end of the connecting rod 8 is hinged with a crank 9, the crank 9 is positioned in front of a first rotating shaft 10, the crank 9 is connected with the first rotating shaft 10, the lower part of a large fixing plate 2 is provided with a first bearing 11, the first bearing 11 is positioned below a first fixing rod 3, the first bearing 11 is in interference connection with the first rotating shaft 10, the left side surface of the large guide sleeve 6 is connected with a connecting plate 12, the left side of the connecting plate 12 is connected with a chair back 13, the bottom of the chair back 13 is connected with a chair seat 14, the top of the chair seat 14 is connected with a side plate 15, the side plate 15 is positioned at the left side of the chair back 13, the side plate 15 is arranged in a front-back symmetrical mode, the left part of the lower side of the chair seat, 2 tops of big fixed plate are connected with first uide bushing 20, and first uide bushing 20 upside is equipped with first positioning screw 21, is equipped with long guide bar 22 in the first uide bushing 20, and long guide bar 22 downside left end is connected with mounting panel 23, and mounting panel 23 right flank is equipped with visual chart 24.

Example 2

The visual eye examination instrument further comprises a scrubbing brush 31, a second guide sleeve 32, a second positioning screw 33, a small guide rod 34, a second spring 35, a first pulley 36, a pull wire 37, a second pulley 38, a sleeve 39, a third positioning screw 40, a reel 41 and a first small support 42, wherein the scrubbing brush 31 is positioned on the right side of the visual eye chart 24, the scrubbing brush 31 is in contact with the visual eye chart 24, the second guide sleeve 32 is connected to the right side of the scrubbing brush 31, the second positioning screw 33 is arranged on the front side of the second guide sleeve 32, the second guide sleeve 32 is slidably sleeved on the small guide rod 34, the second spring 35 is connected between the upper side of the second guide sleeve 32 and the lower side of the long guide rod 22, the first pulley 36 is arranged on the left portion of the front side of the long guide rod 22, the pull wire 37 is wound on the first pulley 36, the left end of the pull wire 37 is connected with the right side of the second guide sleeve 32, the second pulley 38 is arranged on the right portion of the front side, the front side of the connecting plate 12 is provided with a sleeve 39, the front side of the sleeve 39 is provided with a third positioning screw 40, a reel 41 is arranged above the middle of the base 1, a first small bracket 42 is arranged on the rear side of the reel 41, the first small bracket 42 is connected with the base 1, the pull wire 37 penetrates through the sleeve 39, and the pull wire 37 is wound on the reel 41.

Example 3

The novel base is characterized by further comprising a worm wheel 51, a worm 52, a second rotating shaft 53, a second bearing 54, a second rotating disk 55 and a second small support 56, wherein the worm wheel 51 is arranged on the rear side face of the first rotating disk 19, the worm 52 is arranged below the worm wheel 51, the worm wheel 51 is meshed with the worm 52, the worm 52 is arranged on the second rotating shaft 53, the second rotating shaft 53 is in interference connection with the second bearing 54, the second bearing 54 is embedded in the upper portion of the second small support 56, the second rotating disk 55 is connected to the left end of the second rotating shaft 53, the second small support 56 is arranged on the upper side of the base 1, and the second small support 56 is located on the left side of the.

Example 4

The novel electric fan is characterized by further comprising a first gear 61, a second gear 62, a rotating motor 63 and a third small support 64, the first gear 61 is connected to the right end of the second rotating shaft 53, the first gear 61 is located on the right side of the worm wheel 51, the second gear 62 is arranged below the first gear 61, the second gear 62 is meshed with the first gear 61, the rotating motor 63 is arranged on the right side of the second gear 62, an output shaft of the rotating motor 63 is connected with the second gear 62, the third small support 64 is arranged on the right side of the rotating motor 63, the third small support 64 is connected with the rotating motor 63, and the bottom of the third small support 64 is connected with the base 1.

The device is characterized by further comprising a push plate 71, a first roller 72 and a second roller 73, wherein the push plate 71 is connected to the right side of the base 1, the first roller 72 is arranged on the right portion of the lower side of the base 1, and the second roller 73 is arranged on the left portion of the lower side of the base 1.

The working principle is as follows: because the invention comprises a base 1, a large fixing plate 2, a first fixing rod 3, a large guide rod 4, a second fixing rod 5, a large guide sleeve 6, a large positioning screw 7, a connecting rod 8, a crank 9, a first rotating shaft 10, a first bearing 11, a connecting plate 12, a chair back 13, a chair seat 14, a side plate 15, a leg plate 16, a pedal 17, a first spring 18, a first rotating disk 19, a first guide sleeve 20, a first positioning screw 21, a long guide rod 22, a mounting plate 23 and a visual chart 24, the invention is suitable for patients who are weak in body and are difficult to stand, a medical worker firstly enables the patient to sit on the chair seat 14, the side plate 15 provides protection for the patient, the patient can lean on the chair back 13, the pedal 17 and the leg plate 16 respectively provide support for the feet and the legs of the patient, the first spring 18 can provide buffer for the patient on the chair seat 14, and then the medical worker rotates the first rotating disk 19, the first rotating disc 19 drives the crank 9 to rotate through the first rotating shaft 10, the crank 9 drives the connecting rod 8 to move up and down, the connecting rod 8 drives the large guide sleeve 6 to slide up and down on the large guide rod 4, the large guide sleeve 6 drives the chair back 13, the chair seat 14, the side plate 15, the leg plate 16, the pedal 17 and the patient to move up and down together through the connecting plate 12, when the patient is adjusted to be positioned at a proper position with the visual chart 24, the large positioning screw 7 is screwed down to fix the large guide sleeve 6, then the medical worker slides the long guide rod 22 left and right, the long guide rod 22 drives the mounting plate 23 and the visual chart 24 to move left and right, the visual chart 24 is adjusted to be spaced at a proper distance from the patient, and then the first positioning screw 21 is screwed down to fix, the invention is easy to adjust and provides a comfortable test environment for the patient, then medical staff can carry out the eyesight test to the patient, has guaranteed the degree of accuracy of patient's eyesight test, is favorable to subsequent diagnosis and treatment.

Because the multifunctional visual chart cleaner further comprises the scrubbing brush 31, the second guide sleeve 32, the second positioning screw 33, the small guide rod 34, the second spring 35, the first pulley 36, the pull wire 37, the second pulley 38, the sleeve 39, the third positioning screw 40, the reel 41 and the first small bracket 42, when the visual chart 24 needs to be cleaned, a medical worker firstly rotates the reel 41, the reel 41 winds or loosens the pull wire 37 so as to adjust the pull wire 37 to a proper length, then screws the third positioning screw 40 so as to fix the pull wire 37 in the sleeve 39, then when the medical worker drives the connecting plate 12 to move up and down through the large guide sleeve 6, the connecting plate 12 can drive the pull wire 37 to move through the sleeve 39 and the third positioning screw 40, the second pulley 38 and the first pulley 36 provide sliding guide for the pull wire 37, and the pull wire 37 can move up and down on the connecting plate 12, drive second uide bushing 32 and scrubbing brush 31 and carry out the up-and-down motion, thereby scrubbing brush 31 cleans visual chart 24, simultaneously under gravity and second spring 35's dual function, the downward motion that scrubbing brush 31 can be quick, thereby can clean visual chart 24 fast and forcefully, when need not clean visual chart 24, can slide the top of visual chart 24 with second uide bushing 32, then screw up second positioning screw 33 again and can fix, thereby avoid causing the interference to patient's eyesight test.

Because the medical worker also comprises the worm wheel 51, the worm 52, the second rotating shaft 53, the second bearing 54, the second rotating disc 55 and the second small bracket 56, the medical worker can rotate the second rotating disc 55, the second rotating disc 55 drives the worm 52 to rotate through the second rotating shaft 53, the worm 52 drives the worm wheel 51 to rotate, the worm wheel 51 drives the first rotating disc 19 to rotate, and therefore the self-locking function of the worm 52 and the worm wheel 51 can be utilized, the first rotating disc 19 can be easily fixed, the first rotating disc 19 is prevented from rotating randomly, the workload of the medical worker is further reduced, and time and labor are saved.

Because the medical staff further comprises a first gear 61, a second gear 62, a rotating motor 63 and a third small support 64, the right end of the second rotating shaft 53 is connected with the first gear 61, the first gear 61 is positioned at the right side of the worm wheel 51, the second gear 62 is arranged below the first gear 61, the second gear 62 is meshed with the first gear 61, the rotating motor 63 is arranged at the right side of the second gear 62, the output shaft of the rotating motor 63 is connected with the second gear 62, the third small support 64 is arranged at the right side of the rotating motor 63, the third small support 64 is connected with the rotating motor 63, and the bottom of the third small support 64 is connected with the base 1, the medical staff can start the rotating motor 63 to operate, the rotating motor 63 drives the first gear 61 to rotate through the second gear 62, the first gear 61 drives the second rotating shaft 53 to rotate, the rotating motor 63 replaces manual operation, thereby reducing the labor intensity of the medical staff, and the time and the labor are saved.

Because the medical nursing bed further comprises a push plate 71, a first roller 72 and a second roller 73, the push plate 71 is connected to the right side of the base 1, the first roller 72 is arranged at the right part of the lower side of the base 1, and the second roller 73 is arranged at the left part of the lower side of the base 1, medical workers can push the medical nursing bed through the push plate 71 and move the medical nursing bed to a required place through the first roller 72 and the second roller 73.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An easily-adjusted auxiliary vision testing device for ophthalmology, which is characterized by comprising a base (1), a large fixing plate (2), a first fixing rod (3), a large guide rod (4), a second fixing rod (5), a large guide sleeve (6), a large positioning screw rod (7), a connecting rod (8), a crank (9), a first rotating shaft (10), a first bearing (11), a connecting plate (12), a chair back (13), a chair seat (14), a side plate (15), a leg plate (16), a pedal (17), a first spring (18), a first rotating disk (19), a first guide sleeve (20), a first positioning screw rod (21), a long guide rod (22), a mounting plate (23) and a visual chart (24), wherein the large fixing plate (2) is arranged at the right part of the upper side of the base (1), the first fixing rod (3) is arranged at the lower part of the front side of the large fixing plate (2), and the large guide rod (4) is connected onto the first fixing rod, the upper end of a large guide rod (4) is connected with a second fixed rod (5), the rear end of the second fixed rod (5) is connected with the upper part of the front side of a large fixed plate (2), the large guide rod (4) is sleeved with a large guide sleeve (6) in a sliding mode, the right side of the large guide sleeve (6) is provided with a large positioning screw rod (7), the front side surface of the large guide sleeve (6) is hinged with a connecting rod (8), the lower end of the connecting rod (8) is hinged with a crank (9), the crank (9) is positioned in front of a first rotating shaft (10), the crank (9) is connected with the first rotating shaft (10), the lower part of the large fixed plate (2) is provided with a first bearing (11), the first bearing (11) is positioned below the first fixed rod (3), the first bearing (11) is in interference connection with the first rotating shaft (10), the left side surface of the large guide sleeve (6) is connected with a connecting plate, the top of the chair seat (14) is connected with a side plate (15), the side plate (15) is positioned on the left side of the chair back (13), the side plate (15) is arranged in a front-back symmetrical mode, the left part of the lower side of the chair seat (14) is connected with a leg plate (16), the bottom of the leg plate (16) is connected with a pedal (17), the pedal (17) is in contact with the base (1), a first spring (18) is connected between the bottom of the chair seat (14) and the base (1), the rear end of a first rotating shaft (10) is connected with a first rotating disk (19), the top of a large fixing plate (2) is connected with a first guide sleeve (20), the upper side of the first guide sleeve (20) is provided with a first positioning screw rod (21), a long guide rod (22) is arranged in the first guide sleeve (20), the left end of the lower side of the long guide; the novel visual acuity test instrument further comprises a scrubbing brush (31), a second guide sleeve (32), a second positioning screw rod (33), a small guide rod (34), a second spring (35), a first pulley (36), a pull wire (37), a second pulley (38), a sleeve (39), a third positioning screw rod (40), a reel (41) and a first small support (42), wherein the scrubbing brush (31) is positioned on the right side of the visual acuity test instrument (24), the scrubbing brush (31) is in contact with the visual acuity test instrument (24), the right side of the scrubbing brush (31) is connected with the second guide sleeve (32), the front side face of the second guide sleeve (32) is provided with the second positioning screw rod (33), the second guide sleeve (32) is sleeved on the small guide rod (34) in a sliding mode, the second spring (35) is sleeved on the small guide rod (34), the second spring (35) is connected between the upper side of the second guide sleeve (32) and the lower side of the long guide rod (22), the left part of the front side of the long guide rod (22) is provided with, a pull wire (37) is wound on the first pulley (36), the left end of the pull wire (37) is connected with the right side of the second guide sleeve (32), the second pulley (38) is arranged at the right part of the front side of the long guide rod (22), the pull wire (37) is wound around the second pulley (38), a sleeve (39) is arranged at the front side of the connecting plate (12), a third positioning screw rod (40) is arranged at the front side of the sleeve (39), a reel (41) is arranged above the middle part of the base (1), a first small support (42) is arranged at the rear side of the reel (41), the first small support (42) is connected with the base (1), the pull wire (37) penetrates through the sleeve (39), and the pull wire (37) is wound on the reel (41); the novel rotary table is characterized by further comprising a worm wheel (51), a worm (52), a second rotating shaft (53), a second bearing (54), a second rotating disc (55) and a second small support (56), the worm wheel (51) is arranged on the rear side face of the first rotating disc (19), the worm (52) is arranged below the worm wheel (51), the worm wheel (51) is meshed with the worm (52), the worm (52) is arranged on the second rotating shaft (53), the second rotating shaft (53) is in interference connection with the second bearing (54), the second bearing (54) is embedded in the upper portion of the second small support (56), the second rotating disc (55) is connected to the left end of the second rotating shaft (53), the second small support (56) is arranged on the upper side of the base (1), and the second small support (56) is located on the left side of the first rotating disc (19).

2. The auxiliary vision testing device easy to adjust and used for ophthalmology of claim 1, further comprising a first gear (61), a second gear (62), a rotating motor (63) and a third small support (64), wherein the first gear (61) is connected to the right end of the second rotating shaft (53), the first gear (61) is located on the right side of the worm gear (51), the second gear (62) is arranged below the first gear (61), the second gear (62) is meshed with the first gear (61), the rotating motor (63) is arranged on the right side of the second gear (62), an output shaft of the rotating motor (63) is connected with the second gear (62), the third small support (64) is arranged on the right side of the rotating motor (63), the third small support (64) is connected with the rotating motor (63), and the bottom of the third small support (64) is connected with the base (1).

3. The auxiliary vision testing device of claim 2, further comprising a push plate (71), a first roller (72) and a second roller (73), wherein the push plate (71) is connected to the right side of the base (1), the first roller (72) is disposed on the right portion of the lower side of the base (1), and the second roller (73) is disposed on the left portion of the lower side of the base (1).