Ophthalmic examination table convenient to operate

Abstract

The invention provides an ophthalmology examination table convenient to operate, and relates to the technical field of ophthalmology examination tables, the ophthalmology examination table comprises an ophthalmology examination workbench, a computer display screen is installed at the top end of the ophthalmology examination workbench, a lifting mechanism is arranged at the top end of the ophthalmology examination workbench, a positioning mechanism is arranged above a supporting cavity, and a lifting mechanism is arranged above the supporting cavity. A supporting cavity is formed in the upper portion of the ophthalmic examination workbench, a protection mechanism is arranged in the supporting cavity, a mounting frame is mounted above the ophthalmic examination workbench, an electric telescopic rod is mounted at the bottom end of the mounting frame, an adjusting mechanism is arranged at the bottom end of the electric telescopic rod, and an eye examination instrument is mounted at the bottom end of the adjusting mechanism. The protective mechanisms are arranged on the supporting cavity, a cushion towel on the discharging roller can be driven to move through mutual cooperation of the protective mechanisms, so that when each patient is examined, the cushion towel can be replaced, the examining table is cleaner and more sanitary when used, cross infection is not prone to occurring, and the examining table is convenient to use. Therefore, the use safety of the inspection table is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of ophthalmic examination tables, and in particular to an ophthalmic examination table which is easy to operate. Background Art

[0002] With the development of economy and the continuous improvement of science and technology, my country's medical industry has developed very rapidly, and the treatment effect of ophthalmology has become better and better. The full name of ophthalmology is "eye disease specialist". Ophthalmology is a discipline that studies diseases occurring in the visual system, including the eyeball and its associated tissues. In 1851, Helmholtz of Germany invented the ophthalmoscope, and ophthalmology truly became an independent discipline. Doctors who can engage in ophthalmology must be graduates of this major and must have studied ophthalmology in tertiary hospitals and higher medical colleges before they can carry out clinical medical treatment and teaching. Common ophthalmic diseases include: central serous retinopathy, dry eye, sympathetic ophthalmia, night blindness, blindness, amblyopia, astigmatism, trachoma, cataracts, diabetic retinopathy, conjunctivitis, presbyopia, color blindness, heterochromia iris, retinitis pigmentosa, central retinal artery occlusion, visual Retina detachment, myopia, hyperopia, stye, snow blindness, chalazion, glaucoma, floaters, etc. General eye examination, including eye appendages and anterior segment examination. Eye appendage examination includes: eyelid, conjunctiva, tear apparatus, eyeball position and orbit examination; anterior segment examination: including cornea, anterior sclera, anterior chamber, iris, pupil, lens examination. Commonly used ophthalmic equipment includes eye chart, tonometer, slit lamp, direct / strip light retinoscope, color vision test chart, perimeter, film reading lamp, A / B ultrasound examination instrument, optometer, keratometer, fluorescein fundus angiography machine, ophthalmic retrobulbar injection needle, tear duct flushing needle, eyelash removal forceps, retinal photocoagulation laser equipment, retinal cryostat, operating table, operating lamp, conventional external eye surgical instruments, operating microscope, microsurgical instruments, intraocular electromagnet. A special ophthalmic examination table is required when examining the patient's eyes.

[0003] For example, application publication number CN115886712A discloses "an ophthalmic examination table" and specifically discloses: the mandibular table and the supporting table are arranged up and down, the lifting frame is arranged in a U shape, and the two ends of the lifting frame pass through the supporting table and the mandibular table in sequence from bottom to top, the mandibular table is fixedly connected to the lifting frame, and the supporting table and the lifting frame slide in cooperation; a first driving module is provided in the supporting table, and the driving module is transmission-connected with a first screw extending downward, the first screw is threadedly cooperated with the lower end of the lifting frame, and the first screw can drive the mandibular table to move up and down when it rotates; a plurality of pads for supporting the mandible are provided between the two ends of the mandibular table corresponding to the lifting frame, and the upper surface of each pad forms an arc-shaped supporting surface, and an elastic support member is provided under each pad to enable the pad to move up and down; side sliding blocks that can move up and down along the lifting frame are provided above the corresponding two ends of the lifting frame, The side slider is provided with a retractable sleeve that can be retracted and extended in the horizontal direction and has elasticity on one side of the pad block, the end of the retractable sleeve is connected to a side support pad that supports the side of the head, and an air bag that controls the retraction and extension of the retractable sleeve is also provided in the retractable sleeve, and the air bags on both sides above the two ends of the mandibular platform are connected to inflatable handballs. However, although the above technology discloses that the mandibular support assembly can be adjusted according to patients of different heights, during use, since the eyes of many patients will be examined and treated, the mandibles of all patients are placed above the pad block. Some patients may suffer from skin diseases. When examining the eyes of other patients, cross infection may be caused between patients, making the examination table unhygienic when in use, thereby reducing the safety of the eye examination table when in use. Therefore, the present invention proposes an ophthalmic examination table that is easy to operate to solve the above problems. Utility Model Content

[0004] In view of the above problems, the present invention proposes an easy-to-operate ophthalmic examination table, which solves the problem in the above technology that since the eyes of many patients will be examined and processed, the lower jaws of all patients are placed on the pad, some patients may suffer from skin diseases, and when the eyes of other patients are examined, cross infection may be caused between patients, making the examination table unhygienic when in use, thereby reducing the safety of the eye examination table when in use.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: an ophthalmic examination table with convenient operation, comprising an ophthalmic examination workbench, a computer display screen is installed on the top of the ophthalmic examination workbench, a lifting mechanism is arranged on the top of the ophthalmic examination workbench, a mounting plate is installed on the top of the lifting mechanism, a fixing frame is installed above the mounting plate, a supporting cavity is installed on the inner side of the fixing frame, a positioning mechanism is arranged above the supporting cavity, a protective mechanism is arranged inside the supporting cavity, a mounting frame is installed above the ophthalmic examination workbench, an electric telescopic rod is installed at the bottom end of the mounting frame, an adjustment mechanism is arranged at the bottom end of the electric telescopic rod, and an eye examination instrument is installed at the bottom end of the adjustment mechanism;

[0006] The protective mechanism includes a micro-reduction motor, a rotating shaft, a feeding roller and a winding roller. The micro-reduction motor is installed at the rear end of the support cavity. The rotating shaft is rotatably installed on both sides of the support cavity. One end of the micro-reduction motor is connected to one end of the rotating shaft. A winding roller is provided on the outer side wall of one of the rotating shafts, and a feeding roller is provided on the outer side wall of the other rotating shaft. A hole is opened above the support cavity.

[0007] A further improvement is that conveying rollers are installed on both sides of the top hole inside the support cavity, and a conveying roller is installed at the middle position above the support cavity. The conveying roller above the support cavity is shorter and will not affect the placement of the patient's chin.

[0008] Further improvements are: the lifting mechanism includes a fixed cavity, a second servo motor, a screw, a screw sleeve, a hinged rod and a limiting structure, the fixed cavity is installed at the top of the ophthalmic examination workbench, a second servo motor is installed on one side of the fixed cavity, a screw is installed inside the fixed cavity, the output end of the second servo motor is connected to one end of the screw, the threads at both ends of the outer wall of the screw have opposite directions, the outer wall of the screw is symmetrically sleeved with screw sleeves, the top end of the screw sleeve is hingedly installed with a hinged rod, and the top end of the hinged rod is hinged to the bottom end of the mounting plate.

[0009] Further improvements are: the limiting structure includes a first telescopic rod, a limiting groove and a limiting block, the limiting groove is opened at the lower part of the fixed cavity, the limiting block is arranged inside the limiting groove, the top end of the limiting block is connected to the bottom end of the screw sleeve, the first telescopic rod is installed on the top end of the ophthalmic examination workbench, and the top end of the first telescopic rod is connected to the bottom end of the mounting plate.

[0010] A further improvement is that the cross section of the limiting groove is larger than the cross section of the limiting block, and a sliding structure is formed between the limiting groove and the limiting block.

[0011] A further improvement is that four first telescopic rods are arranged below the mounting plate, and the four first telescopic rods are symmetrically distributed about the central axis of the mounting plate.

[0012] Further improvements are: the positioning mechanism includes a movable plate, an installation cavity, a first servo motor, a threaded rod, a threaded sleeve, a movable cavity, a positioning groove, a positioning block and a guide structure, the movable plate is installed on the inner side of the fixed frame, the installation cavity is installed on the top of the fixed frame, the top of the installation cavity is installed with a first servo motor, the inside of the installation cavity is installed with a threaded rod, the output end of the first servo motor is connected to one end of the threaded rod, the outer wall of the threaded rod is provided with a threaded sleeve, the outer wall of the threaded sleeve is fixedly provided with the movable cavity, one end of the movable cavity extends to the inner side of the fixed frame, the bottom end of the movable cavity is connected to the top of the movable plate, the positioning grooves are opened on both sides of the inside of the installation cavity, the inside of the positioning grooves is provided with positioning blocks, and one end of the positioning block is connected to the outside of the movable cavity.

[0013] A further improvement is that the guide structure includes a guide hole and a guide rod, the guide hole is opened through both ends of the fixing frame, the guide rod is opened through the inside of the guide hole, and the bottom end of the guide rod is connected to the top end of the movable plate.

[0014] A further improvement is that the adjustment mechanism includes a cavity, a rotating wheel, a worm and a worm wheel, the cavity is installed at the bottom end of the electric telescopic rod, a rotating wheel is installed at one end of the cavity, a worm is installed on one side inside the cavity, one end of the rotating wheel is connected to one end of the worm, one side of the worm is meshed with a worm wheel, and the bottom end of the worm wheel is connected to the top of the eye examination instrument.

[0015] A further improvement is that a guide groove is provided at the lower part of the cavity, a guide block is provided inside the guide groove, and the bottom end of the guide block is connected to the top end of the eye examination instrument.

[0016] The beneficial effects of the present invention are as follows: by arranging a protective mechanism on the supporting cavity, the micro-reduction motor, the rotating shaft, the unwinding roller and the winding roller of the protective mechanism cooperate with each other, so that the pad on the unwinding roller can be driven to move, so that each patient can be replaced when undergoing an examination, so that the examination table is cleaner and more sanitary when in use, and cross infection is less likely to occur, thereby greatly improving the safety of the examination table when in use; by arranging a lifting mechanism on the top of the ophthalmic examination workbench, the first telescopic rod, the fixed cavity, the second servo motor, the screw, the screw sleeve, the hinged rod, the limit groove and the limit block of the lifting mechanism cooperate with each other, so that the height of the eye examination instrument and the supporting cavity can be conveniently adjusted, so that different body shapes can be adjusted. The ophthalmic examination table can be used by patients with high eyesight, thereby greatly improving the convenience of the ophthalmic examination table when in use; by arranging a positioning mechanism above the supporting cavity, the patient's head can be positioned by utilizing the mutual cooperation among the movable plate, the mounting cavity, the first servo motor, the threaded rod, the threaded sleeve, the movable cavity, the positioning groove, the positioning block, the guide hole and the guide rod of the positioning mechanism, so that the patient's eyes are more stable and not easy to shake during the examination, thereby greatly improving the practicality of the ophthalmic examination table when in use; by arranging an adjustment mechanism below the electric telescopic rod, the angle of the eye examination instrument during the examination can be adjusted by utilizing the mutual cooperation among the cavity, the rotating wheel, the worm, the worm wheel, the guide groove and the guide block of the adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the fixing frame of the present invention;

[0019] Figure 3 It is a schematic diagram of the overall structure of the positioning mechanism of the present invention;

[0020] Figure 4 It is a schematic diagram of the overall structure of the lifting mechanism of the present invention;

[0021] Figure 5 It is a schematic diagram of the overall structure of the regulating mechanism of the present invention;

[0022] Figure 6 It is a schematic diagram of the overall structure of the protection mechanism of the present invention;

[0023] Figure 7 It is a schematic diagram of the overall structure of the winding roller of the present invention.

[0024] Among them: 1. Ophthalmological examination workbench; 2. Computer display screen; 3. Eye examination instrument; 4. Mounting plate; 5. Fixed frame; 6. Support cavity; 7. Movable plate; 8. Mounting cavity; 9. First servo motor; 10. Threaded rod; 11. Threaded sleeve; 12. Movable cavity; 13. Positioning groove; 14. Positioning block; 15. Guide hole; 16. Guide rod; 17. First telescopic rod; 18. Fixed cavity; 19. Second servo motor; 20. Screw; 21. Screw sleeve; 22. Articulated rod; 23. Limiting groove; 24. Limiting block; 25. Micro reduction motor; 26. Rotating shaft; 27. Unwinding roller; 28. Winding roller; 29. ​​Conveying roller; 30. Mounting frame; 31. Electric telescopic rod; 32. Cavity; 33. Rotating wheel; 34. Worm; 35. Worm wheel; 36. Guide groove; 37. Guide block. DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0026] according to Figure 1 , 2 As shown in Figures 3, 4, 5 and 6, the present embodiment proposes an ophthalmic examination table with convenient operation, including an ophthalmic examination workbench 1, a computer display screen 2 is installed on the top of the ophthalmic examination workbench 1, a lifting mechanism is arranged on the top of the ophthalmic examination workbench 1, a mounting plate 4 is installed on the top of the lifting mechanism, a fixing frame 5 is installed on the top of the mounting plate 4, a supporting cavity 6 is installed on the inner side of the fixing frame 5, a positioning mechanism is arranged above the supporting cavity 6, a protective mechanism is arranged inside the supporting cavity 6, a mounting frame 30 is installed on the top of the ophthalmic examination workbench 1, an electric telescopic rod 31 is installed on the bottom end of the mounting frame 30, the electric telescopic rod 31 is electrically connected to the controller, an adjustment mechanism is arranged on the bottom end of the electric telescopic rod 31, an eye examination instrument 3 is installed on the bottom end of the adjustment mechanism, when in use, the electric telescopic rod 31 is started, and the eye examination instrument 3 is driven to move by the electric telescopic rod 31, so that the eye examination instrument 3 and the patient's eyes are on the same horizontal line, so that the patient's eye examination effect is better.

[0027] The lifting mechanism includes a fixed cavity 18, a second servo motor 19, a screw 20, a screw sleeve 21, a hinged rod 22 and a limiting structure. The fixed cavity 18 is installed at the top of the ophthalmic examination workbench 1. A second servo motor 19 is installed on one side of the fixed cavity 18. The second servo motor 19 is electrically connected to the controller. A screw 20 is installed inside the fixed cavity 18. The output end of the second servo motor 19 is connected to one end of the screw 20. The threads at both ends of the outer wall of the screw 20 are in opposite directions. The outer wall of the screw 20 is symmetrically sleeved with a screw sleeve 21. The top of the screw sleeve 21 is hingedly installed with a hinged rod 22. The top end of the connecting rod 22 is hinged to the bottom end of the mounting plate 4. When in use, the second servo motor 19 is started to drive the screw 20 to rotate. Therefore, under the limitation of the limit groove 23 and the limit block 24, the screw 20 is used to drive the screw sleeve 21 to move, and then drive the hinged rod 22 to move. Therefore, with the cooperation of the first telescopic rod 17, the hinged rod 22 is used to drive the mounting plate 4 to move, and the eye examination instrument 3 and the support cavity 6 are adjusted to an appropriate height. The height of the eye examination instrument 3 and the support cavity 6 can be conveniently adjusted, so it can be used for patients of different heights, thereby greatly improving the convenience of the ophthalmic examination table when in use.

[0028] The limiting structure includes a first telescopic rod 17, a limiting groove 23 and a limiting block 24. The limiting groove 23 is opened at the lower part of the fixed cavity 18. The limiting block 24 is arranged inside the limiting groove 23. The top of the limiting block 24 is connected to the bottom end of the screw sleeve 21. The first telescopic rod 17 is installed on the top of the ophthalmic examination workbench 1. The top of the first telescopic rod 17 is connected to the bottom end of the mounting plate 4. The cross-section of the limiting groove 23 is larger than the cross-section of the limiting block 24. A sliding structure is formed between the limiting groove 23 and the limiting block 24. When in use, the limiting groove 23 and the limiting block 24 cooperate with each other to limit the screw sleeve 21 when it moves, so that the screw sleeve 21 is more stable when it moves.

[0029] Four first telescopic rods 17 are arranged below the mounting plate 4. The four first telescopic rods 17 are symmetrically distributed about the central axis of the mounting plate 4. When in use, the first telescopic rod 17 cooperates with the hinge rod 22 to perform telescopic movement when the mounting plate 4 is raised or lowered, thereby limiting the mounting plate 4 when it moves, so that the mounting plate 4 is more stable when it moves.

[0030] The positioning mechanism includes a movable plate 7, a mounting cavity 8, a first servo motor 9, a threaded rod 10, a threaded sleeve 11, a movable cavity 12, a positioning groove 13, a positioning block 14 and a guide structure. The movable plate 7 is installed on the inner side of the fixed frame 5, and the mounting cavity 8 is installed on the top of the fixed frame 5. The first servo motor 9 is installed on the top of the mounting cavity 8. The first servo motor 9 is electrically connected to the controller. The threaded rod 10 is installed inside the mounting cavity 8. The output end of the first servo motor 9 is connected to one end of the threaded rod 10. The outer wall of the threaded rod 10 is provided with a threaded sleeve 11. The outer wall of the threaded sleeve 11 is fixedly installed with an movable cavity 12. One end of the movable cavity 12 extends to the inner side of the fixed frame 5. The bottom of the movable cavity 12 The end is connected with the top of the movable plate 7, the positioning groove 13 is opened on both sides of the installation cavity 8, and the positioning block 14 is arranged inside the positioning groove 13, and one end of the positioning block 14 is connected with the outer side of the movable cavity 12. When in use, the patient places the chin above the support cavity 6, and at this time, the first servo motor 9 is started to drive the threaded rod 10 to rotate, thereby driving the threaded sleeve 11 to move, and then under the limit of the positioning groove 13 and the positioning block 14, the threaded sleeve 11 is used to drive the movable cavity 12 to move, and then the movable plate 7 is driven to move, and the support cavity 6 and the movable plate 7 are used to position the patient's head, so that the patient's eyes are more stable during examination and not easy to shake, thereby greatly improving the practicality of the ophthalmic examination table when in use.

[0031] The guide structure includes a guide hole 15 and a guide rod 16. The guide hole 15 is opened through both ends of the fixed frame 5. The guide rod 16 is opened through the inside of the guide hole 15. The bottom end of the guide rod 16 is connected to the top end of the movable plate 7. When in use, the movable plate 7 can be guided when moving by utilizing the mutual cooperation between the guide hole 15 and the guide rod 16, so that the movable plate 7 is more stable when moving.

[0032] The protective mechanism includes a micro reduction motor 25, a rotating shaft 26, a feeding roller 27 and a winding roller 28. The micro reduction motor 25 is installed at the rear end of the support cavity 6. The micro reduction motor 25 is electrically connected to the controller. The rotating shaft 26 is rotatably installed on both sides of the support cavity 6. One end of the micro reduction motor 25 is connected to one end of one of the rotating shafts 26. The outer wall of one of the rotating shafts 26 is provided with a winding roller 28, and the outer wall of the other rotating shaft 26 is provided with a feeding roller 27. A hole is opened above the support cavity 6. When in use, the mat is pulled out from one end of the feeding roller 27, passed through the hole of the support cavity 6, and then the mat is passed from the bottom of the conveying roller 29, and then penetrated into the interior of the support cavity 6 from another hole of the support cavity 6, and one end of the mat is wound around the outer wall of the winding roller 28. The micro reduction motor 25 is started to drive the rotating shaft 26 to rotate, and then the winding roller 28 is driven to rotate. Under the drive of the conveying roller 29, the winding roller 28 is used to drive the pad to be wound up, and at the same time, the feeding roller 27 feeds the pad, and then the pad is laid on the top of the supporting cavity 6. Then the patient places his chin on the top of the supporting cavity 6, so that each patient can change it when undergoing examination, making the examination table cleaner and more sanitary when in use, and less prone to cross infection, thereby greatly improving the safety of the examination table when in use. When the pad on the feeding roller 27 is used up, the supporting cavity 6 is opened, the feeding roller 27 and the winding roller 28 are removed from the outer wall of the rotating shaft 26, and then new feeding rollers 27 and winding rollers 28 are taken out, and the feeding rollers 27 and winding rollers 28 are installed on the outer wall of the rotating shaft 26 by using the protrusions on the outer wall of the rotating shaft 26, so that the feeding rollers 27 and the winding rollers 28 cannot rotate between the rotating shaft 26 respectively, and finally repeat the above operation steps, wrap one end of the pad around the outside of the winding roller 28, and close the supporting cavity 6.

[0033] Conveying rollers 29 are installed on both sides of the top hole inside the support cavity 6, and a conveying roller 29 is installed at the middle position above the support cavity 6. The conveying rollers 29 above the support cavity 6 are relatively short and will not affect the placement of the patient's chin. When in use, the conveying rollers 29 can be used to convey the pad while moving, so that the pad has a better effect during transportation.

[0034] The adjusting mechanism includes a cavity 32, a rotating wheel 33, a worm 34 and a worm gear 35. The cavity 32 is installed at the bottom end of the electric telescopic rod 31, and a rotating wheel 33 is installed at one end of the cavity 32. A worm 34 is installed on one side of the cavity 32. One end of the rotating wheel 33 is connected to one end of the worm 34, and a worm gear 35 is meshed on one side of the worm 34. The bottom end of the worm gear 35 is connected to the top of the eye examination instrument 3. When in use, the rotating wheel 33 drives the worm 34 to rotate. Since the worm 34 and the worm gear 35 are meshed with each other, the worm gear 35 is driven to rotate, and then under the limitation of the guide groove 36 and the guide block 37, the worm gear 35 is used to drive the eye examination instrument 3 to rotate, so that the eye examination instrument 3 is adjusted to an appropriate angle, and the eye examination instrument 3 is used to perform a more comprehensive examination of the patient's eyes.

[0035] A guide groove 36 is provided at the lower part of the cavity 32, and a guide block 37 is provided inside the guide groove 36. The bottom end of the guide block 37 is connected to the top end of the eye examination instrument 3. When in use, the eye examination instrument 3 can be limited during rotation by utilizing the cooperation between the guide groove 36 and the guide block 37, so that the eye examination instrument 3 is more stable during rotation.

[0036] Working principle: The staff first pulls the mat out from one end of the discharge roller 27, passes it through the hole of the support cavity 6, and then passes the mat through the bottom of the conveying roller 29, and then passes it into the inside of the support cavity 6 from another hole of the support cavity 6, and wraps one end of the mat around the outer wall of the winding roller 28, and starts the second servo motor 19 to drive the screw 20 to rotate. Therefore, under the limit of the limit groove 23 and the limit block 24, the screw 20 is used to drive the screw sleeve 21 to move, and then the hinge rod 22 is driven to move. Therefore, under the cooperation of the first telescopic rod 17, the hinge rod 22 is used to drive the mounting plate 4 to move, and the support The cavity 6 is adjusted to an appropriate height, and then the micro-reduction motor 25 is started to drive the rotating shaft 26 to rotate, thereby driving the winding roller 28 to rotate. Therefore, under the transmission of the conveying roller 29, the winding roller 28 is used to drive the pad to be wound, and at the same time, the unwinding roller 27 unwinds the pad, and then the pad is laid on the top of the supporting cavity 6. Then the patient places his chin on the top of the supporting cavity 6. At this time, the first servo motor 9 is started to drive the threaded rod 10 to rotate, thereby driving the threaded sleeve 11 to move, and then under the limit of the positioning groove 13 and the positioning block 14, the threaded sleeve 11 is used to drive the movable cavity 12 to move. Then, the movable plate 7 is driven to move, and the patient's head is positioned using the support cavity 6 and the movable plate 7. Then, the electric telescopic rod 31 is started to drive the eye examination instrument 3 to move downward, and the patient's eyes are examined using the eye examination instrument 3. At this time, the rotating wheel 33 drives the worm 34 to rotate. Since the worm 34 and the worm wheel 35 are meshed with each other, the worm wheel 35 is driven to rotate. Then, under the limit of the guide groove 36 and the guide block 37, the worm wheel 35 is used to drive the eye examination instrument 3 to rotate, and the eye examination instrument 3 is adjusted to an appropriate angle. A more comprehensive examination of the patient's eyes is performed, and the examination results are transmitted to the computer display screen 2. When the pad towel on the feed roller 27 is used up, the support cavity 6 is opened, the feed roller 27 and the winding roller 28 are removed from the outer wall of the rotating shaft 26, and then new feed rollers 27 and winding rollers 28 are taken out. The feed rollers 27 and winding rollers 28 are installed on the outer wall of the rotating shaft 26 using the protrusions on the outer wall of the rotating shaft 26, so that the feed rollers 27 and winding rollers 28 cannot rotate between the rotating shaft 26 respectively, and finally the above steps are repeated to wrap one end of the pad towel around the outside of the winding roller 28, and then the support cavity 6 can be closed.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ophthalmic examination table that is easy to operate, comprising an ophthalmic examination workbench (1), characterized in that: A computer display screen (2) is installed at the top of the ophthalmic examination workbench (1), a lifting mechanism is provided at the top of the ophthalmic examination workbench (1), a mounting plate (4) is installed at the top of the lifting mechanism, a fixing frame (5) is installed above the mounting plate (4), a supporting cavity (6) is installed on the inner side of the fixing frame (5), a positioning mechanism is provided above the supporting cavity (6), a protective mechanism is provided inside the supporting cavity (6), a mounting frame (30) is installed above the ophthalmic examination workbench (1), an electric telescopic rod (31) is installed at the bottom end of the mounting frame (30), an adjusting mechanism is provided at the bottom end of the electric telescopic rod (31), and an eye examination instrument (3) is installed at the bottom end of the adjusting mechanism; The protection mechanism comprises a micro reduction motor (25), a rotating shaft (26), a feeding roller (27) and a winding roller (28); the micro reduction motor (25) is installed at the rear end of the support cavity (6); the rotating shaft (26) is rotatably installed on both sides of the support cavity (6); one end of the micro reduction motor (25) is connected to one end of one of the rotating shafts (26); the outer wall of one of the rotating shafts (26) is provided with a winding roller (28); the outer wall of the other rotating shaft (26) is provided with a feeding roller (27); and a hole is opened above the support cavity (6).

2. The easy-to-operate ophthalmic examination table according to claim 1, characterized in that: Conveying rollers (29) are installed on both sides of the top hole inside the support cavity (6), and a conveying roller (29) is installed at the middle position above the support cavity (6). The conveying roller (29) above the support cavity (6) is relatively short and will not affect the placement of the patient's chin.

3. The easy-to-operate ophthalmic examination table according to claim 1, characterized in that: The lifting mechanism comprises a fixed cavity (18), a second servo motor (19), a screw (20), a screw sleeve (21), a hinged rod (22) and a limiting structure. The fixed cavity (18) is installed at the top of the ophthalmic examination workbench (1). A second servo motor (19) is installed on one side of the fixed cavity (18). A screw (20) is installed inside the fixed cavity (18). The output end of the second servo motor (19) is connected to one end of the screw (20). The threads at both ends of the outer wall of the screw (20) are in opposite directions. The outer wall of the screw (20) is symmetrically sleeved with a screw sleeve (21). The top end of the screw sleeve (21) is hingedly installed with a hinged rod (22). The top end of the hinged rod (22) is hingedly connected to the bottom end of the mounting plate (4).

4. The easy-to-operate ophthalmic examination table according to claim 3, characterized in that: The limiting structure comprises a first telescopic rod (17), a limiting groove (23) and a limiting block (24); the limiting groove (23) is arranged at the lower part of the fixing cavity (18); the limiting block (24) is arranged inside the limiting groove (23); the top end of the limiting block (24) is connected to the bottom end of the screw sleeve (21); the first telescopic rod (17) is installed at the top end of the ophthalmic examination workbench (1); and the top end of the first telescopic rod (17) is connected to the bottom end of the mounting plate (4).

5. The easy-to-operate ophthalmic examination table according to claim 4, characterized in that: The cross section of the limiting groove (23) is larger than the cross section of the limiting block (24), and a sliding structure is formed between the limiting groove (23) and the limiting block (24).

6. The easy-to-operate ophthalmic examination table according to claim 5, characterized in that: Four first telescopic rods (17) are arranged below the mounting plate (4), and the four first telescopic rods (17) are symmetrically distributed about the central axis of the mounting plate (4).

7. The easy-to-operate ophthalmic examination table according to claim 1, characterized in that: The positioning mechanism comprises a movable plate (7), a mounting cavity (8), a first servo motor (9), a threaded rod (10), a threaded sleeve (11), a movable cavity (12), a positioning groove (13), a positioning block (14) and a guide structure, wherein the movable plate (7) is mounted on the inner side of a fixing frame (5), the mounting cavity (8) is mounted on the top of the fixing frame (5), the top of the mounting cavity (8) is mounted with a first servo motor (9), the interior of the mounting cavity (8) is mounted with a threaded rod (10), the output end of the first servo motor (9) is connected to the threaded sleeve (11), and the positioning block (14) is connected to the threaded sleeve (11). One end of the rod (10) is connected, the outer wall of the threaded rod (10) is provided with a threaded sleeve (11), the outer wall of the threaded sleeve (11) is fixedly installed with a movable cavity (12), one end of the movable cavity (12) extends to the inner side of the fixing frame (5), the bottom end of the movable cavity (12) is connected to the top end of the movable plate (7), the positioning groove (13) is opened on both sides of the installation cavity (8), the positioning groove (13) is provided with a positioning block (14), and one end of the positioning block (14) is connected to the outer side of the movable cavity (12).

8. The easy-to-operate ophthalmic examination table according to claim 7, characterized in that: The guide structure comprises a guide hole (15) and a guide rod (16); the guide hole (15) is opened through both ends of the fixing frame (5); a guide rod (16) is opened through the inside of the guide hole (15); and the bottom end of the guide rod (16) is connected to the top end of the movable plate (7).

9. The easy-to-operate ophthalmic examination table according to claim 1, characterized in that: The adjustment mechanism comprises a cavity (32), a rotating wheel (33), a worm (34) and a worm wheel (35); the cavity (32) is mounted on the bottom end of the electric telescopic rod (31); one end of the cavity (32) is mounted with a rotating wheel (33); one side of the cavity (32) is mounted with a worm (34); one end of the rotating wheel (33) is connected to one end of the worm (34); one side of the worm (34) is meshed with a worm wheel (35); the bottom end of the worm wheel (35) is connected to the top end of the eye examination instrument (3).

10. The easy-to-operate ophthalmic examination table according to claim 9, characterized in that: A guide groove (36) is provided at the lower part of the cavity (32), a guide block (37) is provided inside the guide groove (36), and the bottom end of the guide block (37) is connected to the top end of the eye examination instrument (3).

Images