CN214180380U - Computer optometry unit - Google Patents

Abstract

The utility model relates to a computer optometry instrument, which comprises a base, wherein one end of the base is provided with an optometry assembly and a head support assembly, the head support assembly comprises two upright posts, a support box is horizontally arranged between the two upright posts, both ends of the support box are connected with the upright posts, the upper side of the support box is open, both sides of the upper surface of the support box are rotatably connected with a first rotating shaft with the length direction same as that of the support box, the support box is rotatably connected with a first reversing shaft with the length direction same as that of the first rotating shaft, and an elastic belt is sleeved on the first rotating shaft and the first reversing shaft; one side of the first spraying pipe, corresponding to the first elastic belt, in the support box is fixedly connected with the first spraying pipe, one side of the first spraying pipe, facing the first elastic belt, is fixedly connected with a plurality of first spraying heads, the lower end of the first spraying pipe is fixedly connected with a liquid inlet pipe extending out of the lower side of the support box, and the upper side of the base is fixedly connected with a solution cylinder capable of storing alcohol and delivering the alcohol to the liquid inlet pipe. The utility model discloses have and to have can detect the back at the patient, convenient clean chin strap, the effect that follow-up patient of being convenient for used.

Description

Computer optometry unit

Technical Field

The utility model belongs to the technical field of optometry device's technique and specifically relates to a computer optometry appearance is related to.

Background

The refraction is to examine the convergence of light after the light is incident on the eyeball, and the convergence and divergence difference degree between the examined eye and the emmetropia eye is measured by taking the emmetropia eye state as a standard. Since many people almost come close to the spectacles in a lifetime, optometry is one of the most basic, common and important tasks for optometrists, and so the term optometry is well known to both ophthalmologists and common people in social life.

The prior Chinese patent with reference to the grant publication No. CN103690145B discloses a computer optometry instrument, which comprises a base assembly, wherein a platform of the base assembly is also provided with a control assembly and a screen assembly, and the front end of the base assembly is provided with a head support assembly, and the computer optometry instrument is characterized in that a three-dimensional translation assembly is arranged between the head support assembly and the control assembly, and the control assembly is used for completing automatic or manual detection of two eyes; [0008] the three-dimensional translation assembly comprises a lifting component, a front-back moving component and a left-right moving component are arranged on the lifting component, and a monitoring assembly is arranged at the upper part of the left-right moving component; the lifting component comprises a directional mechanism and a power mechanism, and the forward and backward moving component is driven by the directional mechanism and the power mechanism to vertically lift.

Above-mentioned current computer optometry appearance, when using, the patient all is arranged the head in the chin rest of head rest assembly in, detects, nevertheless is numerous at the patient, especially when the weather is hot, the easy perspiration in patient's ground head to can lead to the chin to hold in the palm and to be infected with more sweat stain, lead to the cleanliness factor of chin rest relatively poor, influence other patients' use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a computer optometry appearance has and can detect the back at the patient, convenient clean chin strap, the effect that follow-up patient of being convenient for used.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a computer optometry instrument comprises a base, wherein one end of the base is provided with an optometry assembly and a head support assembly, the head support assembly comprises two vertical columns, a support box is horizontally arranged between the two vertical columns, two ends of the support box are connected to the vertical columns, an opening is formed in the upper side of the support box, two sides of the upper surface of the support box are rotatably connected with a first rotating shaft, the length direction of the first rotating shaft is the same as that of the support box, a first reversing shaft, the length direction of the first rotating shaft is the same as that of the first rotating shaft, and an elastic belt is sleeved on the first rotating shaft and the first reversing shaft; the improved alcohol bottle is characterized in that a first spray pipe is fixedly connected to one side, corresponding to the first elastic belt, in the support box, a plurality of first spray nozzles are fixedly connected to one side, facing the first elastic belt, of the first spray pipe, a first liquid inlet pipe extending out of the lower side of the support box is fixedly connected to the lower end of the first spray pipe, and a first solution barrel capable of storing alcohol and delivering the alcohol to the first liquid inlet pipe is fixedly connected to the upper side of the base.

Through adopting above-mentioned technical scheme, during the use, the patient can arrange the upside of support box in with the chin, support the chin through a bullet shape area, then, detect the patient through the optometry assembly, after the detection, rotate through a reverse shaft, thereby can drive an elastic webbing and rotate, meanwhile, solution section of thick bamboo sends alcohol to the spray tube in one, then, alcohol is sent to the spray tube in one, spout to rotating to the elastic webbing surface in the support box from the shower nozzle again, thereby can disinfect elastic webbing one, then, rotate along with the continuation of elastic webbing one, thereby can convey clean elastic webbing to the upside of support box, thereby be convenient for next patient's detection.

Preferably, one end of the support box far away from the first nozzle is fixedly connected with a first scraper which has the same length direction as the support box, and the first scraper abuts against the outer surface of the first elastic belt.

By adopting the technical scheme, the first elastic belt which sprays the alcohol rotates to the position of the first scraping plate along with the rotation of the first elastic belt, and then the first scraping plate scrapes off more alcohol drops on the surface of the first elastic belt along with the rotation of the first elastic belt, so that the surface of the first elastic belt rotates to the upper side of the support box in a dry and comfortable manner, and the use of a patient is facilitated.

Preferably, the bottom surface of the support box is obliquely arranged, a first liquid outlet pipe is fixedly connected to the lower side of the bottom surface of the support box, and a waste liquid cylinder communicated with the first liquid outlet pipe is fixedly connected to one side of the base.

Through adopting above-mentioned technical scheme, when spouting to elastic webbing surface alcohol when drippage, alcohol will directly drip to holding in the palm in the box, holds in the palm the alcohol of box bottom surface and will directly collect in flowing to the waste liquid section of thick bamboo through the drain pipe one-class.

Preferably, the circumferential surfaces of the two ends of the first reversing shaft are fixedly connected with a plurality of first teeth by taking the first rotating shaft as a center, and the two ends of the inner surface of the first elastic belt are provided with a plurality of first tooth sockets which can be meshed with the first teeth.

By adopting the technical scheme, the first reversing shaft can drive the first tooth to rotate, so that the first tooth can be driven to be meshed with the first tooth groove, and the first elastic belt is driven to synchronously rotate along with the rotating shaft.

Preferably, the two vertical columns II are provided with blocking boxes corresponding to the upper sides of the support boxes, the length directions of the blocking boxes are the same as the length directions of the support boxes, one sides of the blocking boxes, far away from the optometry assembly, are provided with openings, and the upper end and the lower end of the open sides of the blocking boxes are rotatably connected with second rotating shafts, the length directions of the second rotating shafts are the same as the length directions of the blocking boxes; the position between two corresponding pivot two in the fender box rotates and is connected with two reversing shafts that length direction is the same with two length direction of pivot two, the cover is equipped with two elastic webbing that length direction is the same with two length direction of pivot on pivot two and the reversing shaft two, one side rigid coupling that corresponds elastic webbing two in the fender box has spray tube two, one side rigid coupling that spray tube two was towards elastic webbing two has a plurality of shower nozzles two, the lower extreme rigid coupling of spray tube two has the feed liquor pipe two that communicates with feed liquor pipe one.

Through adopting above-mentioned technical scheme, during the use, keep off box upside elastic webbing one can be arranged in to patient's chin, patient's head butt in the elastic webbing two that keeps off the box, end patient's detection back, can rotate reversing shaft two, drive elastic webbing two and rotate, thereby make elastic webbing two rotate to keeping off in the box, then can spout alcohol to two surface sterilizations of elastic webbing through spray tube two, then, along with the rotation of elastic webbing two, can be with keeping off the box outside through the dual rotation of sterile elastic webbing, the next patient's of being convenient for use.

Preferably, a second scraper which has the same length direction as the support box is fixedly connected to the inner lower side of the stop box, and the second scraper abuts against the outer surface of the elastic belt.

By adopting the technical scheme, the second elastic belt which sprays the alcohol rotates to the position of the second scraper blade along with the rotation of the second elastic belt, and then the second scraper blade scrapes off more alcohol drops on the surface of the second elastic belt along with the rotation of the second elastic belt, so that the surface of the second elastic belt rotates to the outer side of the blocking box in a dry and comfortable manner, and the use of a patient is facilitated.

Preferably, the uncovered downside that keeps off the box has the protrusion to keep off the fender arch of box downside along the length direction rigid coupling that keeps off the box, the downside rigid coupling that keeps off the box has the drain pipe two with a waste liquid section of thick bamboo intercommunication.

Through adopting above-mentioned technical scheme, when spouting when dropping to elastic webbing two surface alcohol, alcohol will directly drip to keeping off in the box, keeps off protruding alcohol that can prevent to keep off the box bottom surface and flows from keeping off the uncovered side of box, keeps off the alcohol of box bottom surface and will directly collect in two flows to the waste liquid section of thick bamboo through the drain pipe.

Preferably, the circumferential surfaces of the two ends of the second reversing shaft are fixedly connected with a second plurality of teeth by taking the second rotating shaft as a center, and the two ends of the inner surface of the second elastic belt are provided with a second plurality of tooth sockets capable of being meshed with the second plurality of teeth.

By adopting the technical scheme, the second reversing shaft rotates to drive the second teeth to rotate, so that the second teeth can be driven to be meshed with the second tooth sockets, and the second elastic belt is driven to synchronously rotate along with the second rotating shaft.

Preferably, a first servo motor is fixedly connected in the support box, and a first gear meshed with the first teeth is fixedly connected to an output shaft of the first servo motor; and a second servo motor is fixedly connected in the gear box, and an output shaft of the second servo motor is fixedly connected to a second gear of the second tooth.

By adopting the technical scheme, when the reversing mechanism works, the servo motor drives the first gear to rotate, the first reversing shaft can be driven to rotate through the first tooth, the second gear is driven to rotate by the second servo motor, and the second reversing shaft can be driven to rotate through the second tooth.

Preferably, a sliding column is vertically and fixedly connected to one side of the base corresponding to the upright column, the support box and the blocking box are vertically and slidably connected to the sliding column, the two upright columns are rotatably connected to the base, and the support box and the blocking box are respectively in threaded connection with one upright column.

Through adopting above-mentioned technical scheme, rotate a stand and can drive and hold in the palm the box and vertically slide, and rotate another stand and can drive and keep off the box and vertically slide to the position of holding in the palm the box and keeping off the box is adjusted, is suitable for different patients.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the device is used, a patient can place the chin on the upper side of the support box, the chin is supported through the elastic band, then the patient is detected through the optometry assembly, after the detection is finished, the first elastic band can be driven to rotate through the rotation of the reversing shaft, meanwhile, the solution cylinder sends alcohol into the first spray pipe, then the alcohol is sent into the first spray pipe and then is sprayed to the outer surface of the first elastic band rotating into the support box from the first spray head, the first elastic band can be disinfected, then the first elastic band rotates along with the continuation of the first elastic band, and therefore the clean first elastic band can be conveyed to the upper side of the support box, and the detection of the next patient is facilitated;

2. the first elastic belt which is sprayed with the alcohol rotates to the position of the first scraping plate along with the rotation of the first elastic belt, and then the first scraping plate scrapes off more alcohol droplets on the surface of the first elastic belt along with the rotation of the first elastic belt, so that the surface of the first elastic belt rotates to the upper side of the support box in a dry and comfortable manner, and the use of a patient is facilitated;

3. during the use, keep off box upside elastic webbing one in can arranging in patient's chin, patient's head butt in the elastic webbing two that keeps off the box, end patient's detection back, can rotate reversing shaft two, drive elastic webbing two and rotate to make elastic webbing two rotate to keeping off in the box, then can spout alcohol to two surface sterilizations of elastic webbing through the spray tube, then, along with the rotation of elastic webbing two, can be with keeping off the box outside through the dual rotation of sterile elastic webbing, the next patient's of being convenient for use.

Drawings

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

Fig. 2 is a schematic diagram of the structure of the tray box of the present invention.

Fig. 3 is a schematic view of a solution cartridge according to the present invention.

Fig. 4 is a schematic view of the structure of the baffle box of the present invention.

In the figure, 1, a base; 11. a column; 12. a traveler; 13. a solution cartridge; 14. a waste liquid cylinder; 2. supporting the box; 21. a first rotating shaft; 22. a first reversing shaft; 221. a first tooth; 23. a first elastic belt; 231. a first tooth groove; 24. a first servo motor; 241. a first gear; 25. a first spray pipe; 251. a first spray nozzle; 252. a liquid inlet pipe I; 26. a first scraper plate; 27. a first liquid outlet pipe; 3. blocking the box; 31. a second rotating shaft; 32. a second reversing shaft; 321. a second tooth; 33. a second elastic band; 331. a tooth socket II; 34. a servo motor II; 341. a second gear; 35. a second spray pipe; 351. a second spray head; 352. a liquid inlet pipe II; 36. a second scraper plate; 37. a second liquid outlet pipe; 38. and (4) blocking protrusions.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a computer optometry unit comprises a base 1, wherein an optometry assembly and a head support assembly are arranged at one end of the base 1. The head support assembly is used for supporting the head of the patient, and the optometry assembly is used for detecting the eyes of the patient.

The head holds in the palm the assembly and includes the coexistence post 11 of vertical setting, the lower extreme of coexistence post 11 is all rotated and is connected in base 1, the equal vertical rigid coupling in one side that base 1 corresponds stand 11 has traveller 12, be provided with between coexistence post 11 and hold in the palm box 2 and keep off box 3, keep off box 3 as to the upside that holds in the palm box 2, keep off box 3 and hold in the palm the equal vertical sliding connection in coexistence post 12 of box 2, coexistence post 11 is the double-screw bolt, 11 threaded connection in a stand keeps off box 3, and 11 threaded connection in another stand hold in the palm box 2, the equal rigid coupling in upper end of coexistence post 11 has the hand wheel, rotate the hand wheel respectively, can drive coexistence post 11 respectively and rotate, thereby can drive and hold in the palm box 2 and keep off box 3 and move along vertical direction, adjust and hold in the palm the height that box 2 and keep off box 3.

Referring to fig. 2 and 3, the upper side of the supporting box 2 is open, two sides of the upper surface of the supporting box 2 are rotatably connected with a first rotating shaft 21 with the length direction the same as that of the supporting box 2, a first reversing shaft 22 with the length direction the same as that of the first rotating shaft 21 is rotatably connected in the supporting box 2, and two first rotating shafts 21 and the first reversing shaft 22 are sleeved with an elastic belt 23; the circumferential surfaces of the two ends of the first reversing shaft 22 are fixedly connected with a plurality of teeth 221 by taking the first rotating shaft 21 as a center, and the two ends of the inner surface of the elastic belt 23 are provided with a plurality of tooth sockets 231 which can be meshed with the teeth 221. A servo motor I24 is fixedly connected in the tray box 2, and a gear I241 meshed with the gear I221 is fixedly connected with an output shaft of the servo motor I24. When the synchronous rotation device works, the servo motor I24 drives the gear I241 to rotate, the reversing shaft I22 can be driven to rotate through the tooth I221, the reversing shaft I22 can drive the tooth I221 to rotate, the tooth I221 can be driven to be meshed with the tooth groove I231, and the elastic belt I23 is driven to synchronously rotate along with the rotating shaft I21.

A first spray pipe 25 is fixedly connected to one side, corresponding to the first elastic belt 23, of the support box 2, a plurality of first spray heads 251 are fixedly connected to one side, facing the first elastic belt 23, of the first spray pipe 25, a first liquid inlet pipe 252 extending out of the lower side of the support box 2 is fixedly connected to the lower end of the first spray pipe 25, a solution barrel 13 capable of storing alcohol is fixedly connected to the upper side of the base 1, and a pump body is fixedly connected to the lower end of the first liquid inlet pipe 252 and extends into the solution barrel 13. During the use, the patient can place the chin in the upside that holds in the palm box 2, support the chin through elastic webbing 23, then, detect the patient through optometry assembly, after the detection, rotate through a reverse shaft 22, thereby can drive elastic webbing 23 and rotate, meanwhile, solution section of thick bamboo 13 sends alcohol to in spray tube 25, then, alcohol sends to in spray tube 25, spout to rotating to holding in the palm the elastic webbing 23 surface in the box 2 from shower nozzle 251 again, thereby can disinfect elastic webbing 23, then, rotate along with the continuation of elastic webbing 23, thereby can convey clear elastic webbing 23 to the upside that holds in the palm box 2, thereby be convenient for next patient's detection.

One end of the first support box 2, which is far away from the first nozzle 251, is fixedly connected with a first scraper 26, the length direction of which is the same as that of the first support box 2, and the first scraper 26 abuts against the outer surface of the first elastic belt 23. The bottom surface of the support box 2 is obliquely arranged, a first liquid outlet pipe 27 is fixedly connected to the lower side of the bottom surface of the support box 2, and a waste liquid cylinder 14 communicated with the first liquid outlet pipe 27 is fixedly connected to one side of the base 1. The elastic belt I23 which is sprayed with the alcohol rotates to the position of the scraping plate I26 along with the rotation of the elastic belt I23, then the scraping plate I26 scrapes off more alcohol drops on the surface of the elastic belt I23 along with the rotation of the elastic belt I23, so that the surface of the elastic belt I23 rotates to the upper side of the support box 2 in a dry and comfortable manner, a patient can use the elastic belt I23 conveniently, when the alcohol drops on the surface of the elastic belt I23, the alcohol directly drops into the support box 2, and the alcohol on the bottom surface of the support box 2 directly flows into the waste liquid cylinder 14 through the liquid outlet pipe I27 to be collected.

Referring to fig. 3 and 4, one side of the blocking box 3, which is far away from the optometry assembly, is open, the upper end and the lower end of the open side of the blocking box 3 are both rotatably connected with a second rotating shaft 31 which is the same as the blocking box 3 in length direction, a second reversing shaft 32 which is the same as the second rotating shaft 31 in length direction is rotatably connected to a position, which corresponds to the position between the second rotating shafts 31, in the blocking box 3, a second elastic belt 33 which is the same as the second rotating shaft 31 in length direction is sleeved on the second rotating shaft 31 and the second reversing shaft 32, a plurality of second teeth 321 are fixedly connected to the circumferential surfaces of two ends of the second reversing shaft 32 by taking the second rotating shaft 31 as a center, a plurality of second tooth sockets 331 which can be meshed with the second teeth 321 are respectively formed at two ends of the inner surface of the second elastic belt 33, a second servo motor 34 is fixedly connected to the second gear 341 of the second teeth 321 in the blocking box 3, and an output shaft of the second servo motor 34 is fixedly connected to the second gear 341 of the second teeth 321. When the two-gear synchronous rotation device works, the second servo motor 34 drives the second gear 341 to rotate, the second swing shaft 321 can be driven to rotate through the second tooth teeth 321, the second reversing shaft 32 rotates and can drive the second tooth teeth 321 to rotate, and therefore the second tooth teeth 321 can be driven to be meshed with the second tooth grooves 331, and the second elastic belt 33 is driven to synchronously rotate along with the second rotating shaft 31.

And a second spray pipe 35 is fixedly connected to the inner upper side of the blocking box 3, a plurality of second spray heads 351 are fixedly connected to one side, facing the second elastic belt 33, of the second spray pipe 35, and a second liquid inlet pipe 352 communicated with the first liquid inlet pipe 252 is fixedly connected to one side of the second spray pipe 35. During the use, keep off 3 upside elastic webbing 23 in keeping off box, patient's chin, patient's head butt in keeping off two 33 elastic webbing of box 3, end patient's detection back, can rotate two reversing shaft 32, drive two 33 rotations of elastic webbing, thereby make two 33 rotations of elastic webbing rotate to keeping off in the box 3, then can spout alcohol to two 33 surface disinfections of elastic webbing through two 35 spray tubes, then, along with the rotation of two 33 elastic webbing, can rotate two 33 disinfected elastic webbing again to keeping off the box 3 outside, be convenient for next patient's use.

Keep off the interior downside rigid coupling of box 3 and have length direction and hold in the palm the same scraper blade two 36 of box 2 length direction, the second scraper blade 36 butt and the second 33 surface of elastic webbing, the downside slope that keeps off box 3 sets up, and the lower surface downside rigid coupling that keeps off box 3 has the drain pipe two 37 with waste liquid section of thick bamboo 14 intercommunication, the open side lower extreme that keeps off box 3 still has the fender arch 38 of protrusion in keeping off the interior bottom surface of box 3 along the length direction rigid coupling that keeps off box 3, keep off arch 38 and can prevent to keep off the alcohol of box 3 bottom surface and flow out from keeping off the open side of box 3. The second elastic belt 33 which is sprayed with the alcohol rotates to the position of the second scraper blade 36 along with the rotation of the second elastic belt 33, then the second scraper blade 36 scrapes off more alcohol droplets on the surface of the second elastic belt 33 along with the rotation of the second elastic belt 33, so that the surface of the second elastic belt 33 rotates to the outer side of the blocking box 3 in a dry and comfortable manner, the use of a patient is facilitated, when the alcohol droplets which are sprayed on the surface of the second elastic belt 33 are dripped, the alcohol directly drips into the blocking box 3, and the alcohol on the bottom surface of the blocking box 3 directly flows into the waste liquid cylinder 14 through the second liquid outlet pipe 37 to be collected.

The implementation principle of the embodiment is as follows: keep off 3 upside elastic webbing 23 of box in the chin of patient, support the chin through elastic webbing 23, then, detect the patient through optometry assembly, after the detection, rotate through a reverse shaft 22, thereby can drive elastic webbing 23 and rotate, meanwhile, solution section of thick bamboo 13 sends alcohol to in spray tube 25, then, alcohol sends to in spray tube 25, spout to rotating to holding in the palm the elastic webbing 23 surface in the box 2 from shower nozzle 251 again, thereby can disinfect elastic webbing 23, then, rotate along with the continuation of elastic webbing 23, thereby can convey clear elastic webbing 23 to the upside that holds in the palm box 2, thereby be convenient for next patient's detection.

Patient's head butt in keeping off two 33 of elastic webbing of box 3, end patient's detection back, can rotate swing axle two, drive two 33 rotations of elastic webbing to make the elastic webbing rotate to keeping off in the box 3, then can spout alcohol to two 33 surface disinfections of elastic webbing through the spray tube, then, along with the rotation of two 33 of elastic webbing, can rotate again to keeping off the box 3 outside through sterile elastic webbing, be convenient for next patient's use.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a computer optometry appearance, includes base (1), and the one end of base (1) is provided with optometry assembly and head rest assembly, its characterized in that: the head support assembly comprises two upright posts (11), a support box (2) is horizontally arranged between the two upright posts (11), two ends of the support box (2) are connected to the upright posts (11), the upper side of the support box (2) is open, two sides of the upper surface of the support box (2) are rotatably connected with a first rotating shaft (21) with the length direction being the same as that of the support box (2), a first reversing shaft (22) with the length direction being the same as that of the first rotating shaft (21) is rotatably connected to the support box (2), and an elastic belt I (23) is sleeved on the first rotating shaft (21) and the first reversing shaft (22); it has spray tube one (25) to hold in the palm one side rigid coupling that corresponds elastic webbing (23) in box (2), spray tube one (25) have a plurality of shower nozzles one (251) towards one side rigid coupling of elastic webbing (23), the lower extreme rigid coupling of spray tube one (25) has the feed liquor pipe one (252) that extends out and hold in the palm box (2) downside, the upside rigid coupling of base (1) has solution section of thick bamboo (13) that can save alcohol and can deliver to feed liquor pipe one (252) with alcohol.

2. A computer optometry unit as in claim 1, wherein: one end, far away from the first nozzle (251), in the support box (2) is fixedly connected with a first scraper (26) with the length direction identical to that of the support box (2), and the first scraper (26) abuts against the outer surface of the first elastic belt (23).

3. A computer optometry unit as in claim 1, wherein: the bottom surface of support box (2) slope sets up, just the bottom surface downside rigid coupling of support box (2) has drain pipe (27), base (1) one side rigid coupling has a waste liquid section of thick bamboo (14) with drain pipe (27) intercommunication.

4. A computer optometry unit as in claim 1, wherein: the circumferential surfaces of two ends of the first reversing shaft (22) are fixedly connected with a plurality of teeth I (221) by taking the first rotating shaft (21) as a center, and two ends of the inner surface of the elastic belt I (23) are provided with a plurality of tooth sockets I (231) capable of being meshed with the teeth I (221).

5. A computer optometry unit according to claim 3, wherein: the upper sides of the two corresponding support boxes (2) of the two upright columns (11) are provided with baffle boxes (3) with the length directions the same as the length directions of the support boxes (2), one sides of the baffle boxes (3) far away from the optometry assembly are provided with openings, and the upper end and the lower end of the opening side of the baffle boxes (3) are rotatably connected with second rotating shafts (31) with the length directions the same as the baffle boxes (3); keep off the position rotation that corresponds between two pivot two (31) in box (3) and be connected with length direction and two (31) the same reversing shaft two (32) of pivot two (31) length direction, the cover is equipped with two (33) of elastic webbing that length direction and two (31) length direction of pivot are the same on two (31) of pivot and reversing shaft two (32), keep off one side rigid coupling that corresponds two (33) of elastic webbing in box (3) and have spray tube two (35), two (35) of spray tube have two (351) of a plurality of shower nozzles towards one side rigid coupling of two (33) of elastic webbing, the lower extreme rigid coupling of two (35) of spray tube has two (352) of feed liquor pipe (252) intercommunication.

6. A computer optometry unit according to claim 5, wherein: and a second scraper (36) with the length direction identical to that of the support box (2) is fixedly connected to the inner lower side of the stop box (3), and the second scraper (36) is abutted against the outer surface of the second elastic belt (33).

7. A computer optometry unit according to claim 5, wherein: keep off the uncovered downside of box (3) along the length direction rigid coupling that keeps off box (3) have the protrusion to keep off protruding (38) of fender of box (3) downside, the downside rigid coupling that keeps off box (3) has drain pipe two (37) with waste liquid section of thick bamboo (14) intercommunication.

8. A computer optometry unit according to claim 5, wherein: the peripheral surfaces of two ends of the second reversing shaft (32) are fixedly connected with a second plurality of teeth (321) by taking the second rotating shaft (31) as a center, and two ends of the inner surface of the second elastic belt (33) are provided with a second plurality of tooth sockets (331) capable of being meshed with the second plurality of teeth (321).

9. A computer optometry unit according to claim 5, wherein: a first servo motor (24) is fixedly connected in the tray box (2), and a first gear (241) meshed with the first teeth (221) is fixedly connected to an output shaft of the first servo motor (24); and a second servo motor (34) is fixedly connected in the gear box (3), and an output shaft of the second servo motor (34) is fixedly connected with a second gear (341) of the second tooth (321).

10. A computer optometry unit according to claim 5, wherein: the equal vertical rigid coupling in one side that base (1) corresponds stand (11) has traveller (12), hold in the palm box (2) with keep off the equal vertical sliding of box (3) and connect in traveller (12), two stand (11) all rotate and connect in base (1), hold in the palm box (2) with keep off box (3) threaded connection respectively in a stand (11).

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