CN113854953A

CN113854953A - Orthoelastic imaging-assisted cornea moulding mirror fitting device

Info

Publication number: CN113854953A
Application number: CN202111242526.7A
Authority: CN
Inventors: 黄国富; 赵雁之
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2021-12-31

Abstract

The invention discloses a device for fitting a orthokeratology mirror based on photoelastic imaging assistance, and relates to the technical field of fitting of orthokeratology mirrors. When the chin of a patient presses the bracket downwards, the bracket descends to drive the first connecting plate and the first telescopic rod to descend, so that the first piston plate is pressed downwards in the first air cylinder, air at the bottom end in the first air cylinder enters the second air cylinder through the connecting pipe under the action of the pressing action of the first piston plate, the entered air acts on the top of the second piston plate, the second piston plate moves from top to bottom in the second air cylinder, the second telescopic rod descends to drive the fixing plate and the side limiting plate to descend through the second connecting plate, so that the fixing plate and the side limiting plate can press and fix the top end of the head of the patient to a certain extent, and the problem that the detection result is incorrect due to deviation or even shaking of the patient during detection is effectively solved.

Description

Orthoelastic imaging-assisted cornea moulding mirror fitting device

Technical Field

The invention relates to the technical field of testing and matching of a orthokeratology mirror, in particular to a device for testing and matching the orthokeratology mirror based on assistance of photoelastic imaging.

Background

The cornea shaping lens, commonly called as OK lens, is a hard contact lens worn at night, thereby achieving the requirement that clear vision can be obtained without wearing frame glasses in the daytime, and can play a role in delaying the development of myopia after being worn for a long time.

Before wearing the corneal plastic mirror, eye health examination must be carried out in professional institutions, including anterior segment examination such as cornea and conjunctiva, eye fundus, intraocular pressure, corneal endothelium, corneal topography, ocular axis, tear film examination, diopter and visual function examination, then try-on, on-chip optometry, fitting evaluation and the like are carried out, wherein professional equipment such as a computer optometry instrument, a corneal curvature instrument and the like is needed for examination and check fitting.

Patient need place the chin among the prior art on the bracket detects in the testing process, but testing process needs patient's head to remain stable among the prior art, if take place to rock then can influence the testing result, and current check out test set can not better adaptation patient's head carries out fixed support to it, and bears the bracket of patient chin and use the back at many people, if one of them patient suffers from symptoms such as skin disease, then can easily take place the condition of cross infection when using same bracket.

Disclosure of Invention

Based on the above, the invention aims to provide a keratoplasty mirror fitting device based on photoelastic imaging assistance, so as to solve the technical problems that in the prior art, a bracket of a detection device cannot better fix and support the head of a patient, and cross infection is easy to occur when a plurality of people use the same bracket.

In order to achieve the purpose, the invention provides the following technical scheme: a cornea shaping mirror fitting device based on photoelastic imaging assistance comprises a bottom plate, a moving seat and a detection mechanism at the top of the bottom plate, wherein fixed columns are fixedly arranged on two sides of one end of the top of the bottom plate, and a bracket is connected to the middle position of the outer sides of the two groups of fixed columns in a sliding mode;

the two sides of the bracket are fixedly provided with first connecting plates, two sides of one end of the top of the bottom plate are fixedly provided with first air cylinders matched with first telescopic rods, the bottoms of the two groups of first connecting plates are fixedly connected with first telescopic rods extending into the first air cylinders, the bottoms of the first telescopic rods are fixedly connected with first piston plates matched with the inner walls of the first air cylinders, two sides of one end of the top of the bottom plate and the positions of the inner ends of the first air cylinders are fixedly provided with second air cylinders, and the top ends of the inner parts of the two groups of second air cylinders are provided with second telescopic rods penetrating above the second air cylinders;

the fixed second piston plate that is provided with and second inflator inner wall matched with in second telescopic link bottom, connect through the connecting pipe between first inflator and the second inflator, it is two sets of the second telescopic link top is all fixed and is provided with the second connecting plate, and is two sets of second connecting plate one end is all fixed be provided with two sets of fixed column sliding connection's fixed plate, the fixed plate both sides are all fixed and are provided with the side limiting plate.

By adopting the technical scheme, the chin of a patient presses down the bracket, the bracket descends to drive the first connecting plate and the first telescopic rod to descend, so that the first piston plate is pressed down in the first air cylinder, air at the bottom end in the first air cylinder enters the second air cylinder through the connecting pipe under the pressing action force of the first piston plate, the entered air acts on the top of the second piston plate, the second piston plate moves from top to bottom in the second air cylinder to drive the second telescopic rod to descend, the second telescopic rod descends through the second connecting plate to drive the fixing plate and the side limiting plate to descend, as the diameter of the first air cylinder is larger than that of the second air cylinder, the descending distance of the second telescopic rod is larger than that of the first telescopic rod, namely, when the chin of the patient only needs to press down the bracket to a proper detection position, the fixing plate and the side limiting plate can press down and fix the top end of the head of the patient to a certain degree, and the fixed plate can adjust the downforce of patient's chin to the effort on patient's head top by oneself, makes fixed plate and side limiting plate play fixed limiting displacement to patient's head top, and the effectual patient of having avoided squints when examining and rock even and lead to the problem that the testing result is incorrect.

The invention is further provided that both sides of the inner end of the bracket are fixedly provided with fixed blocks, the insides of the two groups of fixed blocks are rotatably connected with screw rods, the tail ends of one sides of the two groups of screw rods are fixedly provided with gears, and both sides of one end of the top of the bottom plate are fixedly provided with toothed plates meshed with the gears.

Through adopting above-mentioned technical scheme, make the bracket drive fixed block, lead screw and gear descend, the gear descends and rotates rather than the effect that meshes the pinion rack mutually, and the gear revolve drives the lead screw and rotates, and then the lead screw rotates and drives slider and rather than the carriage that is connected and slide certain distance to both sides from the bracket intermediate position department, makes the position that can place patient's chin vacate in bracket top intermediate position department.

The invention is further provided that the positions close to the outer sides of the two groups of screw rods are movably connected with sliding blocks, one ends of the two groups of sliding blocks are fixedly connected with sliding frames which are in sliding connection with the bracket, and alcohol cotton blocks which are in contact with the top surface of the bracket are arranged inside the two groups of sliding frames.

Through adopting above-mentioned technical scheme, after the patient detected, the bracket reseed under the effect of first spring and rises, according to the reverse motion of above-mentioned structure, makes two sets of carriages drive the both sides end of alcohol cotton piece on the bracket and slides to intermediate position department, and the carriage slides the in-process, and alcohol cotton piece can carry out alcohol to the bracket upper surface and clean, has effectually reduced the risk that leads to crisscross infection when a plurality of patients detect.

The invention is further arranged that two ends inside the two groups of sliding frames are movably connected with limiting rollers extending to the inside of the bracket, and two ends inside the bracket are provided with limiting chutes matched with the limiting rollers.

Through adopting above-mentioned technical scheme, spacing running roller plays the stable limiting displacement to the carriage when the carriage slides, makes the carriage more stable at the slip in-process.

The invention is further arranged such that the first cylinder has a height less than the height of the second cylinder and the first cylinder has a diameter greater than the diameter of the second cylinder.

Through adopting above-mentioned technical scheme, the diameter of first inflator is greater than the diameter of second inflator, and then the descending distance of second telescopic link is greater than the descending distance of first telescopic link.

The invention is further provided that a circulation air valve is arranged in the connecting pipe at a position close to the second air cylinder, an exhaust valve is arranged at the top of the outer side of the first air cylinder, a first through hole matched with one end of the connecting pipe is arranged at the bottom of the surface of the first air cylinder, and a second through hole matched with the other end of the connecting pipe is arranged at the top of the surface of the second air cylinder.

Through adopting above-mentioned technical scheme, inside the circulation pneumatic valve was convenient for gas to get into to the second inflator from the connecting pipe, the discharge valve was convenient for when first piston plate rose, and the air current at its top can be followed the discharge valve and discharged.

The invention is further provided that a first spring is arranged between the bottoms of the two groups of first piston plates and the first air cylinder, and a second spring is fixedly connected between the tops of the two groups of second air cylinders and the second connecting plate and positioned at the outer side of the second telescopic rod.

Through adopting above-mentioned technical scheme, first spring plays the effect that resets that rises to first telescopic link and bracket, and the second spring plays the effect that resets that rises to fixed plate and side limiting plate.

The invention is further arranged in such a way that positioning plates are fixedly arranged on the top of the bottom plate and positioned on both sides of the movable seat, two groups of sliding rods penetrating through the movable seat are fixed between the two groups of positioning plates, and one end of the top of the movable seat is provided with an adjusting rod.

By adopting the technical scheme, the movable seat and the detection mechanism can move to adjust the position along the axis of the sliding rod under the adjustment action of the adjusting rod.

The invention is further provided that two sides of one end of the top of the bottom plate are fixedly provided with protective shells positioned on the outer sides of the first air cylinder and the second air cylinder, and the top of each protective shell is provided with a matching hole matched with the fixing column.

Through adopting above-mentioned technical scheme, the protective housing plays the guard action to first inflator and second inflator.

In summary, the invention mainly has the following beneficial effects:

1. the chin of a patient presses down the bracket, the bracket descends to drive the first connecting plate and the first telescopic rod to descend so that the first piston plate is pressed down in the first air cylinder, air at the bottom end in the first air cylinder enters the second air cylinder through the connecting pipe under the action of the pressing force of the first piston plate, the entered air acts on the top of the second piston plate to enable the second piston plate to move from top to bottom in the second air cylinder so as to drive the second telescopic rod to descend, the second telescopic rod descends to drive the fixed plate and the side limiting plate to descend through the second connecting plate, as the diameter of the first air cylinder is larger than that of the second air cylinder, the descending distance of the second telescopic rod is larger than that of the first telescopic rod, namely, when the chin of the patient only needs to press down the bracket to a detection position with a proper distance, the fixed plate and the side limiting plate can press down and fix the top end of the head of the patient to a certain degree, the acting force of the fixed plate on the top end of the head of the patient can enable the patient to adjust the lower pressure of the chin of the patient by himself, so that the fixed plate and the side limiting plate can play a role in fixing and limiting the top end of the head of the patient, and the problem that the detection result is incorrect due to the fact that the patient deviates or shakes during detection is effectively avoided;

2. before the invention is used, a patient manually presses a bracket down for a certain distance to enable the bracket to drive a fixed block, a screw rod and a gear to descend, the gear descends to rotate under the action of a toothed plate meshed with the gear, the gear rotates to drive the screw rod to rotate, further the screw rod rotates to drive a sliding block and a sliding frame connected with the sliding block to slide for a certain distance from the middle position of the bracket to two sides, the middle position of the top of the bracket is free from a position capable of placing the chin of the patient, then the chin of the patient continues to press the bracket to a proper detection position, two groups of sliding frames move towards the tail ends of two sides of the bracket, after the patient is detected, the bracket resets and ascends under the action of a first spring, and the two groups of sliding frames drive alcohol cotton blocks to slide towards the middle positions at the tail ends of two sides of the bracket according to the reverse movement of the structure, during the sliding process of the sliding frames, the alcohol cotton piece can be wiped the bracket upper surface with alcohol, has effectually reduced the risk that leads to the cross infection when a plurality of patients detect.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged, partially exploded view of the interior of the present invention;

FIG. 4 is an enlarged, partially exploded view of the present invention;

FIG. 5 is a schematic structural diagram of a fixing plate according to the present invention;

FIG. 6 is a schematic diagram of a first perspective structure according to the present invention;

FIG. 7 is a schematic diagram of a second perspective view of the present invention.

In the figure: 1. a base plate; 2. a movable seat; 3. a detection mechanism; 4. fixing a column; 5. a bracket; 6. a first connecting plate; 7. a first telescopic rod; 8. a first gas cylinder; 9. a first piston plate; 10. a first spring; 11. a connecting pipe; 12. a ventilation air valve; 13. a second gas cylinder; 14. a second piston plate; 15. a second telescopic rod; 16. a second spring; 17. a second connecting plate; 18. a fixing plate; 19. a side limiting plate; 20. an exhaust valve; 21. a fixed block; 22. a screw rod; 23. a gear; 24. a toothed plate; 25. a slider; 26. a carriage; 27. alcohol cotton blocks; 28. a limiting roller; 29. a limiting chute; 30. an adjusting lever; 31. positioning a plate; 32. a slide bar; 33. a protective shell.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A cornea moulding mirror fitting device based on photoelastic imaging assistance is disclosed, as shown in figures 1, 2, 3 and 4, and comprises a bottom plate 1, a movable seat 2 and a detection mechanism 3 at the top of the movable seat, wherein fixed columns 4 are fixedly arranged on two sides of one end of the top of the bottom plate 1, and a bracket 5 is slidably connected to the middle position of the outer sides of the two groups of fixed columns 4;

the two sides of the bracket 5 are fixedly provided with first connecting plates 6, the two sides of one end of the top of the bottom plate 1 are fixedly provided with first air cylinders 8 matched with the first telescopic rods 7, the bottoms of the two groups of first connecting plates 6 are fixedly connected with first telescopic rods 7 extending into the first air cylinders 8, the bottoms of the first telescopic rods 7 are fixedly connected with first piston plates 9 matched with the inner walls of the first air cylinders 8, the two sides of one end of the top of the bottom plate 1 and the positions of the inner ends of the first air cylinders 8 are fixedly provided with second air cylinders 13, and the top ends of the inner parts of the two groups of second air cylinders 13 are provided with second telescopic rods 15 penetrating above the second air cylinders;

a second piston plate 14 matched with the inner wall of a second air cylinder 13 is fixedly arranged at the bottom of a second telescopic rod 15, the first air cylinder 8 is connected with the second air cylinder 13 through a connecting pipe 11, a second connecting plate 17 is fixedly arranged at the top of each of two groups of second telescopic rods 15, one end of each of two groups of second connecting plates 17 is fixedly provided with a fixing plate 18 in sliding connection with two groups of fixing columns 4, side limiting plates 19 are fixedly arranged at two sides of the fixing plate 18, when a patient depresses a bracket 5, the bracket 5 descends to drive a first connecting plate 6 and a first telescopic rod 7 to descend so that the first piston plate 9 is depressed inside the first air cylinder 8, air at the bottom end inside the first air cylinder 8 is pressed by the first piston plate 9 and enters the second air cylinder 13 through the connecting pipe 11, the entered air acts on the top of the second piston plate 14, so that the second piston plate 14 moves from top to bottom inside the second air cylinder 13, and then the second telescopic rod 15 is driven to descend, and the second telescopic rod 15 descends to drive the fixing plate 18 and the side limiting plate 19 to descend through the second connecting plate 17.

Referring to fig. 2, 3 and 4, two sides of the inner end of the bracket 5 are both fixedly provided with fixed blocks 21, two groups of fixed blocks 21 are both rotatably connected with screw rods 22, one end of each group of screw rods 22 is fixed with a gear 23, two sides of one end of the top of the bottom plate 1 are both fixedly provided with toothed plates 24 engaged with the gear 23, positions close to the outer sides of the two groups of screw rods 22 are both movably connected with slide blocks 25, one ends of the two groups of slide blocks 25 are both fixedly connected with slide frames 26 slidably connected with the bracket 5, two groups of slide frames 26 are both internally provided with alcohol cotton blocks 27 contacted with the top surface of the bracket 5, two ends of the inner part of the two groups of slide frames 26 are both movably connected with limit rollers 28 extending to the inner part of the bracket 5, and two ends of the inner part of the bracket 5 are both started to be provided with limit chutes 29 matched with the limit rollers 28, by the arrangement of the invention, after the patient is detected, the bracket 5 is reset and ascended under the action of the first spring 10, according to the reverse motion of above-mentioned structure, make two sets of carriage 26 drive the both sides end of alcohol cotton piece 27 on bracket 5 and slide to intermediate position department, during carriage 26 slides, alcohol cotton piece 27 can carry out the alcohol to wipe bracket 5 upper surface, has effectually reduced the risk that leads to the cross infection when a plurality of patients detect.

Referring to fig. 1 and 3, the height of the first cylinder 8 is less than that of the second cylinder 13, the diameter of the first cylinder 8 is greater than that of the second cylinder 13, a ventilation valve 12 is disposed in the connecting tube 11 at a position close to the second cylinder 13, an exhaust valve 20 is disposed at the top of the outer side of the first cylinder 8, and the bottom of the surface of the first air cylinder 8 is provided with a first through hole matched with one end of the connecting pipe 11 and the top of the surface of the second air cylinder 13 is provided with a second through hole matched with the other end of the connecting pipe 11, by the arrangement of the structure, the diameter of the first air cylinder 8 is larger than that of the second air cylinder 13, further, the descending distance of the second telescopic rod 15 is longer than that of the first telescopic rod 7, the ventilation air valve 12 facilitates the air to enter from the connecting pipe 11 to the inside of the second air cylinder 13, and the exhaust air valve 20 facilitates the air flow at the top of the first piston plate 9 to be discharged from the exhaust air valve 20 when the first piston plate 9 ascends.

Referring to fig. 1, 2 and 3, a first spring 10 is arranged between the bottom of the two sets of first piston plates 9 and the first air cylinder 8, and a second spring 16 is fixedly connected between the top of the two sets of second air cylinders 13 and the second connecting plate 17 and positioned at the outer side of the second telescopic rod 15.

Referring to fig. 1, 6 and 7, the top of the bottom plate 1 is fixedly provided with two positioning plates 31 at two sides of the movable seat 2, two sets of slide rods 32 penetrating through the movable seat 2 are fixed between the two sets of positioning plates 31, one end of the top of the movable seat 2 is provided with an adjusting rod 30, two sides of one end of the top of the bottom plate 1 are fixedly provided with protective casings 33 at two sides of the first air cylinder 8 and the second air cylinder 13, and the top of the protective casings 33 is provided with matching holes matched with the fixed columns 4.

The working principle of the invention is as follows: when the device is used, a power supply is switched on, the detection mechanism 3 is connected with external equipment, a worker firstly moves the detection mechanism 3 to one side along the sliding rod 32 through the adjusting rod 30, and after a patient is in place, the adjustment rod 30 is used for finely adjusting the detection mechanism 3 and adjusting the focal length;

when a patient presses the bracket 5 downwards at the chin, the bracket 5 descends to drive the first connecting plate 6 and the first telescopic rod 7 to descend, so that the first piston plate 9 is pressed downwards in the first air cylinder 8, air at the bottom end in the first air cylinder 8 enters the second air cylinder 13 through the connecting pipe 11 under the pressing action force of the first piston plate 9, the entered air acts on the top of the second piston plate 14, the second piston plate 14 moves from top to bottom in the second air cylinder 13, the second telescopic rod 15 is further driven to descend, and the second telescopic rod 15 descends to drive the fixing plate 18 and the side limiting plate 19 to descend through the second connecting plate 17;

because the diameter of the first air cylinder 8 is greater than that of the second air cylinder 13, and further the descending distance of the second telescopic rod 15 is greater than that of the first telescopic rod 7, that is, when the chin of the patient only needs to press the bracket 5 to a position with a proper distance to be detected, the fixing plate 18 and the side limiting plate 19 can press and fix the top end of the head of the patient to a certain extent, and the acting force of the fixing plate 18 on the top end of the head of the patient can be adjusted by the patient, so that the fixing plate 18 and the side limiting plate 19 can play a role in fixing and limiting the top end of the head of the patient, and the problem that the detection result is incorrect due to deviation or even shaking of the patient during detection is effectively avoided;

further, before the patient detection is started, the patient manually presses the bracket 5 down for a certain distance to enable the bracket 5 to drive the fixed block 21, the screw rod 22 and the gear 23 to descend, the gear 23 descends and rotates under the action of the toothed plate 24 meshed with the gear 23, the gear 23 rotates to drive the screw rod 22 to rotate, the screw rod 22 rotates to drive the sliding block 25 and the sliding frame 26 connected with the sliding block to slide for a certain distance from the middle position of the bracket 5 to two sides, the middle position of the top of the bracket 5 is free of the position where the chin of the patient can be placed, and then when the chin of the patient continues to press the bracket 5 down to a proper detection position, the two groups of sliding frames 26 move towards the tail ends of the two sides of the bracket 5;

after the patient is detected, the bracket 5 is reset and ascended under the action of the first spring 10, the two groups of sliding frames 26 drive the alcohol cotton blocks 27 to slide towards the middle position from the tail ends of the two sides of the bracket 5 according to the reverse movement of the structure, and the alcohol cotton blocks 27 can wipe the upper surface of the bracket 5 with alcohol in the sliding process of the sliding frames 26, so that the risk of cross infection caused by detection of a plurality of patients is effectively reduced;

still further, when the first spring 10 resets to drive the first piston plate 9 and the first telescopic rod 7 to ascend, the gas above the inside of the first cylinder 8 is exhausted out of the first cylinder 8 through the exhaust valve 20 under the action of the ascending first piston plate 9, so that the bracket 5 is completely restored to the initial state under the reset of the first spring 10, and the bracket 5 which is completely restored to the initial state further enables the two sets of sliding frames 26 to drive the alcohol cotton blocks 27 to wipe the middle position of the bracket 5, that is, the position where the chin of the patient contacts with the bracket 5 is better wiped and disinfected by alcohol;

the invention not only fixes the head of the patient during the detection, greatly improves the detection effect on the eyes of the patient, improves the detection efficiency to a certain extent, reduces the probability of repeated detection on the same patient, but also carries out alcohol disinfection on the bracket 5 through the alcohol cotton block 27, improves the sanitation degree to a great extent and has higher use safety.

Although embodiments of the present invention have been shown and described, it is intended that the present invention should not be limited thereto, that the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, variations or the like, which are not inventive and may be made by those skilled in the art without departing from the principle and spirit of the present invention and without departing from the scope of the claims.

Claims

1. The utility model provides a moulding mirror of cornea is tested and is joined in marriage device based on photoelastic formation of image is supplementary, includes bottom plate (1), removes detection mechanism (3) at seat (2) and its top, its characterized in that: fixing columns (4) are fixedly arranged on two sides of one end of the top of the bottom plate (1), and a bracket (5) is connected to the middle position of the outer sides of the two groups of fixing columns (4) in a sliding mode;

the device is characterized in that first connecting plates (6) are fixedly arranged on two sides of the bracket (5), first air cylinders (8) matched with the first telescopic rods (7) are fixedly arranged on two sides of one end of the top of the base plate (1), first telescopic rods (7) extending into the first air cylinders (8) are fixedly connected to the bottoms of the two groups of first connecting plates (6), first piston plates (9) matched with the inner walls of the first air cylinders (8) are fixedly connected to the bottoms of the first telescopic rods (7), second air cylinders (13) are fixedly arranged on two sides of one end of the top of the base plate (1) and located at the inner ends of the first air cylinders (8), and second telescopic rods (15) penetrating above the second air cylinders (13) are arranged at the top ends of the interiors of the two groups of second air cylinders (13);

the fixed second piston plate (14) that is provided with and second inflator (13) inner wall matched with in second telescopic link (15) bottom, connect through connecting pipe (11) between first inflator (8) and the second inflator (13), it is two sets of second telescopic link (15) top is all fixed and is provided with second connecting plate (17), and is two sets of second connecting plate (17) one end is all fixed and is provided with fixed plate (18) with two sets of fixed column (4) sliding connection, fixed plate (18) both sides are all fixed and are provided with side limiting plate (19).

2. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 1, wherein: bracket (5) inner both sides all are fixed and are provided with fixed block (21), and are two sets of fixed block (21) inside all rotates and is connected with lead screw (22), and is two sets of lead screw (22) one side end is fixed with gear (23), the both sides of bottom plate (1) top one end all are fixed and are provided with pinion rack (24) with gear (23) engaged with.

3. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 2, wherein: two sets of all swing joint in the position department that the lead screw (22) outside is close to is had slider (25), two sets of slider (25) one end all fixedly connected with and bracket (5) sliding connection's carriage (26), two sets of carriage (26) inside all is provided with alcohol cotton piece (27) that contact with bracket (5) top surface.

4. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 3, wherein: two sets of carriage (26) inside both ends all swing joint have and extend to inside spacing running roller (28) of bracket (5), the inside both ends of bracket (5) all begin to have spacing spout (29) with spacing running roller (28) matched with.

5. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 1, wherein: the height of the first air cylinder (8) is smaller than that of the second air cylinder (13), and the diameter of the first air cylinder (8) is larger than that of the second air cylinder (13).

6. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 1, wherein: the inside position department that is close to second inflator (13) of connecting pipe (11) is provided with circulation pneumatic valve (12), first inflator (8) outside top is provided with discharge valve (20), and first inflator (8) surface bottom begin to have with connecting pipe (11) one end matched with first through-hole and second inflator (13) surface top begin to have with connecting pipe (11) other end matched with second through-hole.

7. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 1, wherein: a first spring (10) is arranged between the bottom of the two groups of first piston plates (9) and the first air cylinder (8), and a second spring (16) is fixedly connected between the top of the two groups of second air cylinders (13) and the second connecting plate (17) and positioned on the outer side of the second telescopic rod (15).

8. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 1, wherein: the bottom plate (1) top is located both sides of removing seat (2) and all is fixed with locating plate (31), and is two sets of be fixed with two sets of slide bar (32) that run through and remove seat (2) between locating plate (31), it is provided with adjusting lever (30) to remove seat (2) top one end.

9. The orthokeratology lens fitting device based on photoelastic imaging assistance, as claimed in claim 1, wherein: both sides of bottom plate (1) top one end all are fixed to be provided with and are located protective housing (33) in first inflator (8) and second inflator (13) outside, and protective housing (33) top begin to have with fixed column (4) matched with mating holes.