Ophthalmic examination device capable of being positioned and adjusted for eye health screening

Abstract

The invention belongs to the technical field of ophthalmologic examination, and particularly relates to an ophthalmologic examination device capable of being positioned and adjusted for eye health screening, the ophthalmologic examination device comprises a mounting bottom plate, the upper end of the mounting bottom plate is fixedly connected with two up-down adjusting mechanisms, and the rear ends of the two up-down adjusting mechanisms are in meshing transmission with two bevel gears I respectively. Through mutual cooperation of the worm I, the worm gear I and the rotating shaft II, the effect of driving the two rotating push-pull plates to rotate can be achieved; the two eye examination devices can be driven to move relatively through the rotation of two rotary push-pull plates under the mutual cooperation of a push-pull rod I, a fixed shaft, a fixed rod I and a sliding plate; the distance between the two eye examination devices can be properly adjusted and positioned according to different distances between the eyes of the teenagers to be examined, so that eye examination work can be conveniently carried out on different teenagers.

Description

Technical Field

[0001] The present invention belongs to the technical field of ophthalmic examination, and in particular relates to an ophthalmic examination device with positionable adjustment for eye health screening. Background Art

[0002] In recent years, the myopia rate among children and adolescents in my country has increased year by year, and the trend of younger age is obvious. It is necessary to timely analyze the vision health of children and adolescents, screen out myopia and other refractive errors at an early stage, dynamically observe the development and changes of refractive status of children and adolescents at different stages, detect the tendency or trend of myopia at an early stage, formulate intervention measures, and strive to reduce myopia, especially the occurrence and development of high myopia. Eye examination devices are needed in the process of examining adolescents' eyes.

[0003] Problems with existing technologies:

[0004] 1. The structure of existing ophthalmic eye examination devices is mostly fixed during use. During the eye examination of teenagers, there may be a certain deviation between the position of their eyes and the position of the examination instrument, which is inconvenient to adjust. This not only affects the efficiency of the examination, but also has a certain impact on the eye examination process of teenagers.

[0005] 2. Most existing ophthalmic eye examination devices lack support and limitation measures for the teenagers' heads during the eye examination, which causes the teenagers' heads to shake during the eye examination, thus affecting the eye examination process to a certain extent.

[0006] 3. The position of the existing ophthalmic eye examination device is not easy to fine-tune during use, which causes teenagers to adjust the position of their eyes by themselves during the eye examination, and requires doctors to guide and adjust them back and forth, which affects the efficiency of the eye examination.

[0007] 4. The existing ophthalmic eye examination device is inconvenient to adjust the device according to the different types of teenagers undergoing eye examination during use, which in turn affects the efficiency of eye examination for teenagers.

[0008] 5. The existing ophthalmic eye examination devices have relatively simple functions during use, which results in the need for teenagers to constantly adjust themselves according to the examination results during the examination of their eyes, making the examination process relatively cumbersome. Summary of the invention

[0009] The purpose of the present invention is to provide an ophthalmic examination device with positionable adjustment for eye health screening, which can solve the problem that the structure of existing ophthalmic eye examination devices is mostly fixed during use, and there may be a certain deviation between the position of the eyes of teenagers and the position of the examination instrument during the eye examination, which is inconvenient to adjust, which not only affects the efficiency of the examination, but also has a certain impact on the eye examination process of teenagers.

[0010] The technical solution adopted by the present invention is as follows:

[0011] A positionable and adjustable ophthalmic examination device for eye health screening comprises a mounting base, the upper end of the mounting base is fixedly connected to two up-and-down adjustment mechanisms, the rear ends of the two up-and-down adjustment mechanisms are respectively meshed and transmitted with two bevel gears, the two up-and-down adjustment mechanisms are respectively slidably connected to the left and right ends of an eye examination mechanism, the left and right sides of the eye examination mechanism are respectively fixedly connected to the relatively close ends of the two position adjustment mechanisms, the lower ends of the two position adjustment mechanisms are both meshed and transmitted with the lower side of the eye examination mechanism, the lower sides of the two position adjustment mechanisms are respectively fixedly connected to the two up-and-down adjustment mechanisms, the front sides of the up-and-down adjustment mechanisms are fixedly connected to a head limiting mechanism, and the rear end of the head limiting mechanism is fixedly connected to the two position adjustment mechanisms.

[0012] A lower jaw support plate is correspondingly provided on the lower side of the head limiting mechanism, and the lower jaw support plate is fixedly connected to the mounting base plate through two fixing columns provided at the lower end thereof, the two bevel gears are respectively fixedly connected to one end of the two rotating shafts, and the other ends of the two rotating shafts are respectively fixedly connected to two output shafts provided on the dual-axis motor, and the dual-axis motor is fixedly connected to the upper end of the mounting base plate, and the two rotating shafts are movably connected with a support plate, and the lower ends of the two support plates are fixedly connected to the mounting base plate.

[0013] The eye examination mechanism includes a concave mounting frame, the left and right ends of the concave mounting frame are respectively fixedly connected to the relatively close ends of the two position adjustment mechanisms, the left and right ends of the concave mounting frame are fixedly connected to a limit slider, the two limit sliders are respectively slidably connected to the two upper and lower adjustment mechanisms, the lower ends of the two limit sliders are fixedly connected with an L-shaped tooth plate, and the two L-shaped tooth plates are respectively meshed with the lower ends of the two position adjustment mechanisms for transmission, two fixed plates 1 are fixedly connected to the front side surface inside the concave mounting frame, the two fixed plates 1 are respectively movably connected to the upper and lower sides of the rotating shaft 2, and two rotating push-pull plates are fixedly connected to the rotating shaft 2, and the two rotating push-pull plates are respectively movably connected to one end of four push-pull rods 1 through two hinge shafts arranged at their relatively far ends, and the other ends of the four push-pull rods 1 are movably connected with a fixed shaft.

[0014] The relatively close ends of the four fixed shafts are respectively fixedly connected to the four sliding plates, and the relatively close ends of the four sliding plates are respectively fixedly connected to the upper and lower ends of the two eye examination devices, the front ends of the two eye examination devices respectively pass through the two sliding through grooves opened inside the front end of the concave mounting frame and are all arranged on the front side of the concave mounting frame, the four sliding plates are all slidably connected to the eight fixed rods one through the two circular holes opened inside them, the relatively close ends of the eight fixed rods one are respectively fixedly connected to the left and right ends of the two fixed plates one, and the relatively far ends of the eight fixed rods one are respectively fixedly connected to the left and right side surfaces inside the concave mounting frame, the upper end of the rotating shaft two is fixedly connected to a worm gear one, and the worm gear one is meshed with a worm one for transmission, and the rear ends of the two worm gears one are both provided with a rotating handle, and the worm gear one is movably connected to an L-shaped plate one, and the lower end of the L-shaped plate one is fixedly connected to the concave mounting frame.

[0015] The two upper and lower adjustment mechanisms each include a fixed rod 2, the two fixed rods 2 are slidably connected to the two limit sliders respectively, the two fixed rods 2 are fixedly connected to the lower sides of the two position adjustment mechanisms respectively, the front and rear ends of the two fixed rods 2 are fixedly connected with sleeves, the two front sleeves are fixedly connected to the front side of the head limit mechanism, the four sleeves are slidably connected to the four fixed vertical rods respectively, the lower ends of the four fixed vertical rods are fixedly connected to the mounting base plate, the relatively close ends of the four sleeves are fixedly connected to the front and rear ends of the two connecting plates respectively, the two connecting plates are fixedly connected with two fixed rods 3, and the left and right ends of the four fixed rods 3 are movably connected with hinged plates, The lower ends of the eight hinged plates are movably connected to eight fixed rods four respectively, the eight fixed rods are grouped in twos and are fixedly connected to the left and right ends of the four threaded blocks respectively, the four threaded blocks are threadedly connected to the two bidirectional screws respectively, the front and rear sides of the two bidirectional screws are movably connected with support plates two, the lower ends of the four support plates two are fixedly connected to the mounting base plate, the four threaded blocks are slidably connected to the two limit rods through the limiting holes opened inside them, the front and rear ends of the two limit rods are fixedly connected to the relatively close ends of the four support plates two, the rear ends of the two bidirectional screws are fixedly connected to bevel gears two, and the two bevel gears two are meshed with the two bevel gears one for transmission respectively.

[0016] The two position adjustment mechanisms each include an L-shaped plate 2, and the two L-shaped plates 2 are fixedly connected to the two fixed rods 2 through through holes opened at their relatively close ends, and the two L-shaped plates 2 are movably connected with a rotating rod 1, and the relatively close ends of the two rotating rods 1 are respectively fixedly connected to one end of the two push-pull rods 2, and the other ends of the two push-pull rods 2 are respectively movably connected to one end of the two push-pull rods 3, and the other ends of the two push-pull rods 3 are movably connected to a fixed rod 5, and the relatively close ends of the two fixed rods 5 are respectively fixedly connected to the left and right ends of the concave mounting frame.

[0017] The relatively distant ends of the two rotating rods one are fixedly connected with gear two, and the two gear twos are respectively meshed with two meshing tooth plates for transmission, the front ends of the two meshing tooth plates are fixedly connected with Z-shaped plates, the lower sides of the two Z-shaped plates are respectively fixedly connected with the lower ends of the two electric hydraulic rods one, the upper ends of the two electric hydraulic rods one are fixedly connected with fixed plate two, the relatively close ends of the two fixed plates two are respectively fixedly connected with two L-shaped plates two, the lower ends of the two L-shaped plates two are fixedly connected with T-shaped limiting rod one, the lower ends of the two T-shaped limiting rod one are respectively slidably connected with Z-shaped plates with circular through holes opened in the two upper ends, the lower ends of the two L-shaped plates two are fixedly connected with L-shaped plates three, and the front ends of the two L-shaped plates three are movably connected with worm gear two.

[0018] The lower ends of the two worm gears 2 are fixedly connected with gear 1, the two gear 1s are respectively meshed with two L-shaped toothed plates for transmission, the two worm gears 2 are respectively meshed with two worm wheels 2 for transmission, the two worm wheels 2 are respectively fixedly connected with one end of two rotating rods 2, the other ends of the two rotating rods 2 are respectively fixedly connected with the rear side of the head limiting mechanism, the two rotating rods 2 are movably connected with support plates 3, and the rear ends of the two support plates 3 are respectively fixedly connected with the front ends of the two L-shaped plates 2.

[0019] The head limiting mechanism includes two winding wheels, the two winding wheels are respectively fixedly connected to the relatively far ends of the two rotating rods, the two winding wheels are respectively fixedly connected to one end of the two connecting ropes, and the two connecting ropes are respectively wound around the two winding wheels, the other ends of the two connecting ropes respectively pass through the two hollow tubes and are respectively fixedly connected to the relatively far ends of the two head limiting splints, the relatively close ends of the two head limiting splints are respectively provided with protective cushions 1, the relatively far ends of the two head limiting splints are fixedly connected to two T-shaped limiting rods 2, the four T-shaped limiting rods 2 are respectively slidably connected to concave frames with two circular through holes provided inside the left and right ends, the four T-shaped limiting rods 2 are respectively sleeved with springs, the relatively close ends of the four springs are respectively fixedly connected to the left and right ends of the concave frame, and the relatively far ends of the four springs are respectively fixedly connected to the relatively far sides of the four T-shaped limiting rods 2.

[0020] Two electric hydraulic rods 2 are fixedly connected to the upper end of the concave frame, and the lower ends of the two electric hydraulic rods 2 are fixedly connected to the arc pressure plate, and the arc pressure plate corresponds to the lower jaw support plate, and the relatively close ends of the arc pressure plate and the lower jaw support plate are provided with protective cushions 2, and the lower end of the concave frame is fixedly connected to two L-shaped plates 4, and the rear ends of the two L-shaped plates 4 are fixedly connected to the two front sleeves, and the two hollow conduits are fixedly connected with L-shaped plates 5, and the relatively close ends of the two L-shaped plates 5 are respectively fixedly connected to the two front sleeves, and the relatively close ends of the two hollow conduits are respectively fixedly connected to the left and right ends of the concave frame.

[0021] The technical effects achieved by the present invention are:

[0022] 1. The present invention can achieve the effect of driving the two rotating push-pull plates to rotate through the mutual cooperation between the arranged worm screw 1, worm wheel 1 and rotating shaft 2. The rotation of the two rotating push-pull plates can drive the two eye examination devices to move relative to each other under the mutual cooperation between the arranged push-pull rod 1, fixed shaft, fixed rod 1 and sliding plate, so that the device can appropriately adjust and position the distance between the two eye examination devices according to the different distances between the eyes of the teenagers to be examined, so as to facilitate the eye examination of different teenagers. In the process of adjusting the distance between the two eye examination devices, the mutual cooperation between the arranged fixed rod 1, fixed plate 1 and sliding plate can limit and support the movement of the eye examination devices.

[0023] 2. The present invention can achieve the effect of driving the two bidirectional screws to rotate through the mutual cooperation between the dual-axis motor, rotating shaft 1, bevel gear 1 and bevel gear 2. The rotation of the two bidirectional screws can drive the two fixed rods 2 to move in the up and down directions with the cooperation of the set threaded block, fixed rod 4, fixed rod 3, hinged plate, connecting plate, sleeve and fixed vertical rod. At this time, the two eye examination devices can be driven to move in the up and down directions with the cooperation of the set limit slider and the concave mounting frame, so that the device can perform a corresponding positioning and adjustment process for the position height of the two eye examination devices according to the different heights of the eyes of the teenagers during the examination. The mutual cooperation between the set support plate 2 and the limit rod can limit the movement direction of the threaded block.

[0024] 3. The present invention can drive the two rotating rods 1 to rotate through the mutual cooperation between the arranged electric hydraulic rod 1, Z-shaped plate, meshing tooth plate and gear 2. Through the rotation of the two rotating rods 1, with the cooperation of the arranged push-pull rod 2, push-pull rod 3, fixed rod 5 and limit slider, the concave mounting frame can be driven to slide forward on the two fixed rods 2, and then the two eye examination devices can be driven to move forward, so as to adjust the distance between the two eye examination devices and the eyes of the teenager, which is convenient for the subsequent inspection of the eyes of the teenager. The mutual cooperation between the arranged fixed plate 2, T-shaped limiting rod 1 and Z-shaped plate can increase the stability of the meshing tooth plate during the movement.

[0025] 4. The present invention can drive the two worm gears 2 to rotate in cooperation with the limit slider, L-shaped tooth plate and gear 1 in the process of driving the two eye examination devices to move forward. The rotation of the two worm gears 2 can achieve the effect of driving the two winding wheels to rotate in cooperation with the worm wheel 2 and the rotating rod 2. A certain length of connecting rope can be released through the rotation of the two winding wheels. In the process of adjusting the two eye examination devices in the up and down directions, the head limit mechanism and the position adjustment mechanism can also be adjusted in the up and down directions, so that the device can be adjusted adaptively according to the different teenagers, thereby increasing the flexibility of the device during use.

[0026] 5. The present invention can achieve the effect of driving the two head limit clamps to approach each other when the two winding wheels rotate and release a certain length of connecting rope through the mutual cooperation between the arranged spring, the two T-shaped limit rods and the concave frame. Through the mutual approach between the two head limit clamps, the left and right directions of the teenager's head overlapped on the chin support plate are limited. Then, by starting the two electric hydraulic rods, the arc pressure plate is driven to move downward, and then with the cooperation of the arranged chin support plate, the up and down directions of the teenager's head can be limited, thereby ensuring the stability of the teenager's head during the eye examination and ensuring the smooth progress of the eye examination process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0028] Figure 2 It is a right-side stereoscopic structural schematic diagram of the present invention;

[0029] Figure 3 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0030] Figure 4 It is a top view of the three-dimensional structure of the present invention;

[0031] Figure 5 It is a right-view stereoscopic structural diagram of the head limiting mechanism in the present invention;

[0032] Figure 6 It is a schematic diagram of the main three-dimensional structure of the head limiting mechanism in the present invention;

[0033] Figure 7 It is a right-side stereoscopic structural schematic diagram of the up-and-down adjustment mechanism in the present invention;

[0034] Figure 8 It is a left-side stereoscopic structural schematic diagram of the position adjustment mechanism in the present invention;

[0035] Fig. 9 It is a right-side stereoscopic structural schematic diagram of the position adjustment mechanism in the present invention;

[0036] Fig.10 It is a right-view cross-sectional three-dimensional structural schematic diagram of the eye inspection mechanism of the present invention;

[0037] Fig.11 It is a rear-view stereoscopic structural schematic diagram of the eye examination mechanism in the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] 1. Install the base plate; 2. Fix the column; 3. Lower jaw support plate; 4. Up and down adjustment mechanism; 41. Fix the vertical rod; 42. Sleeve; 43. Support plate 2; 44. Threaded block; 45. Fixing rod 4; 46. Hinge plate; 47. Limit rod; 48. Bidirectional screw; 49. Bevel gear 2; 410. Connecting plate; 411. Fixing rod 2; 412. Fixing rod 3; 5. Eye inspection mechanism; 51. Concave mounting frame; 52. Fixing plate 1; 53. Rotating shaft 2; 54. Eye inspection device; 55. Sliding groove; 56. Rotating push-pull plate; 57. Push-pull rod 1; 58. Worm 1; 59. L-shaped plate 1; 510. Worm gear 1; 511. L-shaped tooth plate; 512. Limit slider; 513. Sliding plate; 514. Fixing rod 1; 515. Fixed shaft; 6. Head limit mechanism; 61. L-shaped plate 4; 62, head limit clamp; 63, T-shaped limit rod 2; 64, spring; 65, concave frame; 66, arc pressure plate; 67, electric hydraulic rod 2; 68, hollow conduit; 69, L-shaped plate 5; 610, connecting rope; 611, winding wheel; 7, position adjustment mechanism; 71, L-shaped plate 3; 72, support plate 3; 73, worm gear 2; 74, gear 1; 75, worm gear 2; 76. Rotating rod two; 77. Fixed rod five; 78. Push-pull rod three; 79. L-shaped plate two; 710. Rotating rod one; 711. Meshing gear plate; 712. Push-pull rod two; 713. T-shaped limiting rod one; 714. Z-shaped plate; 715. Electric hydraulic rod one; 716. Fixed plate two; 717. Gear two; 8. Dual-axis motor; 9. Rotating shaft one; 10. Support plate one; 11. Bevel gear one. DETAILED DESCRIPTION

[0040] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0041] like Figure 1-11As shown, an ophthalmic examination device with position adjustment for eye health screening includes a mounting base plate 1, the upper end of the mounting base plate 1 is fixedly connected to two up-and-down adjustment mechanisms 4, the rear ends of the two up-and-down adjustment mechanisms 4 are respectively meshed with two bevel gears 11 for transmission, the two up-and-down adjustment mechanisms 4 are respectively slidably connected to the left and right ends of an eye examination mechanism 5, the left and right sides of the eye examination mechanism 5 are respectively fixedly connected to the relatively close ends of two position adjustment mechanisms 7, the lower ends of the two position adjustment mechanisms 7 are both meshed with the lower side of the eye examination mechanism 5 for transmission, the lower sides of the two position adjustment mechanisms 7 are respectively fixedly connected to the two up-and-down adjustment mechanisms 4, the front side of the up-and-down adjustment mechanism 4 is fixedly connected to a head limiting mechanism 6, the rear end of the head limiting mechanism 6 is fixedly connected to the two position adjustment mechanisms 7, and the rotation of the two bevel gears 11 can drive the eyes under the action of the provided up-and-down adjustment mechanism 4. The inspection mechanism 5 and the head limiting mechanism 6 move in the up and down directions, so that the device can appropriately adjust the position height of the eye inspection mechanism 5 according to the different teenagers during the eye inspection of the teenagers, and then the eye inspection mechanism 5 can be driven to move forward under the action of the set position adjustment mechanism 7, and then the distance between the eye inspection mechanism 5 and the teenager's eyes is adjusted, thereby achieving the positioning adjustment process of the eye inspection mechanism 5, making the device more flexible during use. In the process of driving the eye inspection mechanism 5 to move forward, the position adjustment mechanism 7 and the head limiting mechanism 6 can cooperate to achieve the effect of limiting and fixing the teenager's head overlapped on the chin support plate 3, thereby ensuring the stability of the teenager's head during the eye examination and ensuring the smooth progress of the eye examination process.

[0042] Furthermore, a lower jaw support plate 3 is correspondingly provided on the lower side of the head limiting mechanism 6, and the lower jaw support plate 3 is fixedly connected to the mounting base plate 1 through two fixing columns 2 arranged at the lower end thereof, and two bevel gears 11 are respectively fixedly connected to one end of two rotating shafts 9, and the other ends of the two rotating shafts 9 are respectively fixedly connected to two output shafts arranged on the dual-axis motor 8, and the dual-axis motor 8 is fixedly connected to the upper end of the mounting base plate 1, and the two rotating shafts 9 are movably connected with a support plate 10, and the lower ends of the two support plates 10 are fixedly connected to the mounting base plate 1, and the lower jaw support plate 3 is provided to support the head of the teenager during the eye examination, thereby increasing the comfort of the teenager during the examination, and the rotation of the output shaft of the dual-axis motor 8 can drive the two rotating shafts 9 to rotate, thereby achieving the effect of driving the two bevel gears 11 to rotate, and the support plate 10 can support the rotating shaft 9.

[0043] Furthermore, the eye examination mechanism 5 includes a concave mounting frame 51, the left and right ends of the concave mounting frame 51 are respectively fixedly connected to the relatively close ends of the two position adjustment mechanisms 7, the left and right ends of the concave mounting frame 51 are fixedly connected to the limit sliders 512, the two limit sliders 512 are respectively slidably connected to the two upper and lower adjustment mechanisms 4, the lower ends of the two limit sliders 512 are fixedly connected to L-shaped tooth plates 511, the two L-shaped tooth plates 511 are respectively meshed with the lower ends of the two position adjustment mechanisms 7 for transmission, and two fixed plates 1 52 are fixedly connected to the front side surface of the inner part of the concave mounting frame 51, and the two fixed plates 1 52 are respectively movably connected to the upper and lower sides of the rotating shaft 2 53, and the rotating shaft 2 53 is fixedly connected There are two rotating push-pull plates 56, and the two rotating push-pull plates 56 are movably connected to one end of four push-pull rods 57 through two hinge shafts set at their relatively far ends, and the other ends of the four push-pull rods 57 are movably connected to fixed shafts 515, and the relatively close ends of the four fixed shafts 515 are fixedly connected to four sliding plates 513, and the relatively close ends of the four sliding plates 513 are fixedly connected to the upper and lower ends of the two eye inspection devices 54, respectively. The front ends of the two eye inspection devices 54 pass through the two sliding grooves 55 opened inside the front end of the concave mounting frame 51 and are both set on the front side of the concave mounting frame 51. The four sliding plates 513 pass through the two circular holes opened inside and They are respectively slidably connected with eight fixed rods 514, the relatively close ends of the eight fixed rods 514 are respectively fixedly connected with the left and right ends of the two fixed plates 52, and the relatively far ends of the eight fixed rods 514 are respectively fixedly connected to the left and right side surfaces inside the concave mounting frame 51. The upper end of the rotating shaft 2 53 is fixedly connected with a worm wheel 510, and the worm wheel 510 is meshed with the worm 58 for transmission. The worm 58 is movably connected with an L-shaped plate 59, and the lower end of the L-shaped plate 59 is fixedly connected to the concave mounting frame 51. The L-shaped plate 59 can support the worm 58, and the rotation of the worm 58 can drive the rotating shaft 2 under the action of the worm wheel 510. The rotation of the rotating shaft 53 can drive the corresponding two sliding plates 513 to move away from each other under the cooperation between the rotating push-pull plate 56, the push-pull rod 1 57 and the fixed shaft 515, so as to achieve the adjustment process of the distance between the two eye examination devices 54, so that the device can adjust the distance between the two eye examination devices 54 according to the different distances between the eyes of different teenagers, so as to adapt to the examination of both eyes of different teenagers, and the movement direction of the sliding plate 513 can be limited by the cooperation between the concave mounting frame 51, the fixed plate 1 52 and the fixed rod 1 514.

[0044] The two upper and lower adjustment mechanisms 4 each include a fixed rod 411, the two fixed rods 411 are slidably connected to the two limit sliders 512, the two fixed rods 411 are fixedly connected to the lower sides of the two position adjustment mechanisms 7, the front and rear ends of the two fixed rods 411 are fixedly connected with sleeves 42, the two front sleeves 42 are fixedly connected to the front side of the head limit mechanism 6, the four sleeves 42 are slidably connected to the four fixed vertical rods 41, the lower ends of the four fixed vertical rods 41 are fixedly connected to the mounting base plate 1, the relatively close ends of the four sleeves 42 are fixedly connected to the front and rear ends of the two connecting plates 410, and the two connecting plates 410 are fixedly connected There are two fixing rods 3 412, and the left and right ends of the four fixing rods 3 412 are movably connected with hinged plates 46. The lower ends of the eight hinged plates 46 are movably connected with eight fixing rods 45 respectively. The eight fixing rods 45 are grouped in pairs and are fixedly connected with the left and right ends of four threaded blocks 44 respectively. The four threaded blocks 44 are respectively threadedly connected with two bidirectional screws 48. The front and rear sides of the two bidirectional screws 48 are movably connected with support plates 2 43. The lower ends of the four support plates 2 43 are fixedly connected with the mounting base plate 1. The four threaded blocks 44 are slidably connected with the two limiting rods 47 through the limiting holes opened inside them. The front and rear ends of the two limiting rods 47 are respectively connected with The relatively close ends of the four support plates 2 43 are fixedly connected, and the rear ends of the two bidirectional screw rods 48 are fixedly connected with bevel gears 2 49. The two bevel gears 2 49 are respectively meshed with the two bevel gears 11 for transmission. The movement direction of the concave mounting bracket 51 can be limited by the cooperation between the set limit slider 512 and the fixed rod 2 411. The rotation of the two bevel gears 11 can achieve the effect of driving the two bidirectional screw rods 48 to rotate under the action of the set two bevel gears 2 49. The rotation of the two bidirectional screw rods 48 can drive the corresponding two threaded blocks 44 to move relative to each other. At this time, the fixed rod 45 is set With the cooperation of the fixing rod three 412, the connecting plate 410 and the sleeve 42, the two fixing rods 411 can be driven to move in the up and down directions. By driving the two fixing rods 411 to move in the up and down directions, the concave mounting frame 51 can be driven to move accordingly with the cooperation of the two limit sliders 512, so as to achieve the positioning and adjustment process of the upper and lower positions of the two eye examination devices 54. The fixed vertical rod 41 can limit the movement direction of the sleeve 42. The limit rod 47 and the mutual cooperation between the supporting plate 2 43 can limit the movement direction of the threaded block 44.

[0045] The two position adjustment mechanisms 7 each include an L-shaped plate 2 79, and the two L-shaped plates 2 79 are fixedly connected to the two fixed rods 2 411 through the through holes opened at the relatively close ends thereof, and the two L-shaped plates 2 79 are movably connected with a rotating rod 1 710, and the relatively close ends of the two rotating rods 1 710 are respectively fixedly connected to one end of the two push-pull rods 2 712, and the other ends of the two push-pull rods 2 712 are respectively movably connected to one end of the two push-pull rods 3 78, and the other ends of the two push-pull rods 3 78 are movably connected to the fixed rod 5 77, and the relatively close ends of the two fixed rods 5 77 are respectively fixedly connected to the left and right ends of the concave mounting frame 51, and the relatively far ends of the two rotating rods 1 710 are fixedly connected to the gear 2 717, and the two gears 2 71 7 are respectively meshed with two meshing tooth plates 711 for transmission, the front ends of the two meshing tooth plates 711 are fixedly connected with Z-shaped plates 714, the lower sides of the two Z-shaped plates 714 are respectively fixedly connected with the lower ends of the two electric hydraulic rods 1 715, the upper ends of the two electric hydraulic rods 1 715 are fixedly connected with fixed plates 2 716, the relatively close ends of the two fixed plates 2 716 are respectively fixedly connected with two L-shaped plates 2 79, the lower ends of the two L-shaped plates 2 79 are fixedly connected with T-shaped limiting rods 1 713, the lower ends of the two T-shaped limiting rods 1 713 are respectively slidably connected with the two Z-shaped plates 714 with circular through holes in the inner parts of the two upper ends, and the Z-shaped plates 714 can be increased by the mutual cooperation between the fixed plates 2 716 and the T-shaped limiting rods 1 713. 4. In order to ensure the stability during the movement, the two Z-shaped plates 714 are driven downward by starting the two electric hydraulic rods 715, and then the two rotating rods 710 are driven to rotate with the cooperation of the meshing tooth plate 711 and the gear 2 717. The concave mounting frame 51 can be driven to move forward with the cooperation of the push-pull rod 2 712, the push-pull rod 3 78 and the fixed rod 5 77 through the rotation of the two rotating rods 710. At this time, the distance between the two eye examination devices 54 and the eyes of the teenager can be adjusted. The lower ends of the two L-shaped plates 79 are fixedly connected to the L-shaped plates 3 71, and the front ends of the two L-shaped plates 3 71 are movably connected to the worm 2 73. The two worms The lower ends of the two gears 73 are fixedly connected with gears 1 74, and the two gears 1 74 are respectively meshed with the two L-shaped toothed plates 511 for transmission. The two worm gears 2 73 are respectively meshed with the two worm wheels 2 75 for transmission. The two worm wheels 2 75 are respectively fixedly connected with one end of the two rotating rods 2 76, and the other ends of the two rotating rods 2 76 are fixedly connected to the rear side of the head limiting mechanism 6. The two rotating rods 2 76 are movably connected with support plates 3 72, and the rear ends of the two support plates 3 72 are respectively fixedly connected with the front ends of the two L-shaped plates 2 79. In the process of driving the two concave mounting frames 51 to move forward, the cooperation of the set limiting slider 512, the L-shaped toothed plate 511 and the gear 1 74 can achieve the effect of driving the two worm gears 2 73 to rotate.The rotation of the two worms 73 can drive the two rotating rods 76 to rotate under the action of the two worm wheels 75. The L-shaped plate 71 can support the worms 73, and the support plate 72 can support the rotating rods 76.

[0046] The head limiting mechanism 6 includes two winding wheels 611, which are respectively fixedly connected to the relatively remote ends of the two rotating rods 76, and the two winding wheels 611 are respectively fixedly connected to one end of two connecting ropes 610, and the two connecting ropes 610 are respectively wound around the two winding wheels 611, and the other ends of the two connecting ropes 610 pass through the two hollow conduits 68 and are respectively fixedly connected to the relatively remote ends of the two head limiting splints 62, and the relatively remote ends of the two head limiting splints 62 are fixedly connected to two T-shaped limiting rods 63. The four T-shaped limiting rods 63 are respectively slidably connected to the concave frame 65 with two circular through holes at the left and right ends. The four T-shaped limiting rods 63 are sleeved with springs 64. The upper end of the concave frame 65 is fixedly connected to two electric hydraulic rods 67. The lower ends of the two electric hydraulic rods 67 are fixedly connected to the arc pressure plate 66, and the arc pressure plate 66 corresponds to the lower jaw support plate 3. The lower end of the concave frame 65 is fixedly connected to two L-shaped plates 61. The rear ends of the two L-shaped plates 61 are fixedly connected to the two front sleeves 42. The two hollow The conduits 68 are fixedly connected with L-shaped plates 5 69, and the relatively close ends of the two L-shaped plates 5 69 are fixedly connected to the two sleeves 42 on the front side, respectively. The relatively close ends of the two hollow conduits 68 are fixedly connected to the left and right ends of the concave frame 65, respectively. In the process of driving the concave mounting frame 51 to move forward, the rotation of the two rotating rods 2 76 can achieve the effect of driving the two winding wheels 611 to rotate, and then the rotation of the two winding wheels 611 can release a certain length of the connecting rope 610. At this time, the spring 64 and the T-shaped With the cooperation of the limiting rod 2 63, the two head limiting clamps 62 can be driven to approach each other, so as to achieve a limiting measure for the teenager's head overlapped on the chin support plate 3. After the limiting measure for the teenager's head is achieved, the L-shaped tooth plate 511 and the gear 1 74 are no longer engaged, which ensures the stability of the teenager's head during the eye examination. By starting the two electric hydraulic rods 2 67 to drive the arc pressure plate 66 to move downward, further limiting and fixing measures for the teenager's head can be achieved with the cooperation of the set chin support plate 3.

[0047] The working principle of the present invention is:

[0048] When the device is used to examine the eyes of a teenager, the teenager first overlaps his head on the chin support plate 3, and then starts the dual-axis motor 8 to drive the two rotating shafts 9 to rotate according to the different heights of the teenager's eye positions. Through the rotation of the two rotating shafts 9, the two bidirectional screws 48 can be driven to rotate with the cooperation of the bevel gear 11 and the bevel gear 2 49. Through the rotation of the two bidirectional screws 48, the two fixed rods 411 and the head limiting mechanism 6 can be driven to move in the up and down directions with the cooperation of the fixed rod 45, the hinge plate 46, the fixed rod 3 412, the connecting plate 410 and the sleeve 42. By driving the two fixed rods 411 to move in the up and down directions, the two eye examination devices 54 can be driven to move in the up and down directions with the cooperation of the two limiting sliders 512 and the concave mounting frame 51, thereby achieving the process of adjusting the height of the position of the two eye examination devices 54, so that the device can perform corresponding positioning and adjustment of the position height of the two eye examination devices 54 according to the different heights of the teenager's eye positions.

[0049] After the height positioning adjustment of the two eye examination devices 54 is completed, the two electric hydraulic rods 1 715 are started to drive the two Z-shaped plates 714 to move downward, and then the two rotating rods 1 710 can be driven to rotate under the action of the meshing tooth plate 711 and the gear 2 717. Through the rotation of the two rotating rods 1 710, the push-pull rod 2 712, the push-pull rod 3 78, the fixed rod 5 77, the limit slider 512 and the fixed rod 2 411 can be cooperated to drive the concave mounting frame 51 to move forward, and then the two eye examination devices 54 can be driven to move forward, thereby achieving the process of adjusting the distance between the two eye examination devices 54 and the eyes of the teenager, which is convenient for checking the eyes of the teenager;

[0050] In the process of driving the concave mounting frame 51 to move forward, the two worm gears 73 can be driven to rotate under the action of the set limiting slider 512, the L-shaped toothed plate 511 and the gear 1 74. The rotation of the two worm gears 73 can drive the two rotating rods 76 to rotate under the action of the set two worm wheels 75. The rotation of the two rotating rods 76 can drive the two winding wheels 611 to rotate accordingly, and then the rotation of the two winding wheels 611 can release a certain length of the connecting rope 610. At this time, the cooperation of the set spring 64 and the T-shaped limiting rod 2 63 can drive the two head limiting clamps 62 to approach each other, so as to achieve a limiting measure for the teenager's head, to a certain extent, to ensure the stability of the teenager's head during the eye examination. At this time, the L-shaped toothed plate 511 and the gear 1 74 are no longer in meshing;

[0051] After the teenager's head is limited, the arc-shaped pressing plate 66 is driven to move downward by starting the two electric hydraulic rods 67, and then the upper and lower directions of the teenager's head can be limited under the action of the lower jaw support plate 3. At this time, the two head limit clamps 62 can cooperate to achieve a stable limit on the teenager's head, ensuring the smooth progress of the subsequent eye examination of the teenager.

[0052] When it is necessary to adjust the distance between the two eye examination devices 54 according to the different distances between the teenagers' eyes during the eye examination, the worm gear 1 58 can be rotated to drive the rotating shaft 2 53 to rotate under the action of the worm gear 1 510. The rotation of the rotating shaft 2 53 can drive the corresponding two sliding plates 513 to move away from each other under the cooperation of the rotating push-pull plate 56, the push-pull rod 1 57 and the fixed shaft 515, thereby achieving the process of adjusting the distance between the two eye examination devices 54. After the distance adjustment between the two eye examination devices 54 is completed, the two eyes of the teenager can be examined under the action of the two eye examination devices 54.

[0053] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. An ophthalmic examination device with adjustable positioning for eye health screening, comprising a mounting base plate (1), characterized in that: The upper end of the mounting base plate (1) is fixedly connected to two up-and-down adjustment mechanisms (4), the rear ends of the two up-and-down adjustment mechanisms (4) are respectively meshed with two bevel gears (11) for transmission, the two up-and-down adjustment mechanisms (4) are respectively slidably connected to the left and right ends of the eye inspection mechanism (5), the left and right sides of the eye inspection mechanism (5) are respectively fixedly connected to the relatively close ends of the two position adjustment mechanisms (7), the lower ends of the two position adjustment mechanisms (7) are both meshed with the lower side of the eye inspection mechanism (5) for transmission, the lower sides of the two position adjustment mechanisms (7) are respectively fixedly connected to the two up-and-down adjustment mechanisms (4), the front side of the up-and-down adjustment mechanism (4) is fixedly connected to a head limiting mechanism (6), the rear end of the head limiting mechanism (6) is fixedly connected to the two position adjustment mechanisms (7).

2. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 1, characterized in that: A lower jaw support plate (3) is correspondingly arranged on the lower side of the head limiting mechanism (6); the lower jaw support plate (3) is fixedly connected to the mounting base plate (1) through two fixing columns (2) arranged at its lower end; the two bevel gears (11) are respectively fixedly connected to one end of two rotating shafts (9); the other ends of the two rotating shafts (9) are respectively fixedly connected to two output shafts arranged on the dual-axis motor (8); the dual-axis motor (8) is fixedly connected to the upper end of the mounting base plate (1); the two rotating shafts (9) are both movably connected to a support plate (10); the lower ends of the two support plates (10) are both fixedly connected to the mounting base plate (1).

3. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 1, characterized in that: The eye examination mechanism (5) comprises a concave mounting frame (51), the left and right ends of the concave mounting frame (51) are respectively fixedly connected to the relatively close ends of the two position adjustment mechanisms (7), the left and right ends of the concave mounting frame (51) are both fixedly connected to limit sliders (512), the two limit sliders (512) are respectively slidably connected to the two upper and lower adjustment mechanisms (4), the lower ends of the two limit sliders (512) are both fixedly connected to L-shaped toothed plates (511), the two L-shaped toothed plates (511) are respectively connected to the two position adjustment mechanisms ( 7) is meshed with the lower end of the concave mounting frame (51), and two fixed plates (52) are fixedly connected on the front side of the interior of the concave mounting frame (51), and the two fixed plates (52) are movably connected to the upper and lower sides of the rotating shaft (53), respectively. The rotating shaft (53) is fixedly connected with two rotating push-pull plates (56), and the two rotating push-pull plates (56) are movably connected to one end of four push-pull rods (57) through two hinge shafts arranged at their relatively far ends, and the other ends of the four push-pull rods (57) are movably connected to fixed shafts (515).

4. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 3, characterized in that: The relatively close ends of the four fixed shafts (515) are respectively fixedly connected to the four sliding plates (513), and the relatively close ends of the four sliding plates (513) are respectively fixedly connected to the upper and lower ends of the two eye inspection devices (54). The front ends of the two eye inspection devices (54) respectively pass through the two sliding grooves (55) opened inside the front end of the concave mounting frame (51) and are both arranged on the front side of the concave mounting frame (51). The four sliding plates (513) are respectively slidably connected to the eight fixed rods (514) through the two circular holes opened inside them. The relatively close ends of the eight fixed rods (514) are respectively fixedly connected to the left and right ends of the two fixed plates (52), and the relatively far ends of the eight fixed rods (514) are respectively fixedly connected to the left and right side surfaces inside the concave mounting frame (51). The upper end of the rotating shaft (53) is fixedly connected to a worm gear (510), and the worm gear (510) is meshed with a worm gear (58) for transmission. The worm gear (58) is movably connected to an L-shaped plate (59), and the lower end of the L-shaped plate (59) is fixedly connected to the concave mounting frame (51).

5. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 3, characterized in that: The two upper and lower adjustment mechanisms (4) each include a second fixing rod (411), the two second fixing rods (411) are respectively slidably connected to the two limit sliders (512), the two second fixing rods (411) are respectively fixedly connected to the lower sides of the two position adjustment mechanisms (7), the front and rear ends of the two second fixing rods (411) are both fixedly connected with sleeves (42), the two front sleeves (42) are both fixedly connected to the front side of the head limit mechanism (6), the four sleeves (42) are respectively slidably connected to the four fixed vertical rods (41), the lower ends of the four fixed vertical rods (41) are fixedly connected to the mounting base plate (1), the relatively close ends of the four sleeves (42) are respectively fixedly connected to the front and rear ends of the two connecting plates (410), the two connecting plates (410) are both fixedly connected with two third fixing rods (412), the left and right ends of the four third fixing rods (412) are both movably connected with hinges The connecting plate (46) is provided with a connecting plate (46). The lower ends of the eight hinged plates (46) are movably connected to the eight fixing rods (45) respectively. The eight fixing rods (45) are arranged in pairs and are fixedly connected to the left and right ends of the four threaded blocks (44) respectively. The four threaded blocks (44) are threadedly connected to the two bidirectional screw rods (48) respectively. The front and rear sides of the two bidirectional screw rods (48) are movably connected to the supporting plate (43). The lower ends of the four supporting plates (43) are fixedly connected to the mounting base plate (1). The four threaded blocks (44) are slidably connected to the two limiting rods (47) through the limiting holes provided therein. The front and rear ends of the two limiting rods (47) are fixedly connected to the relatively close ends of the four supporting plates (43) respectively. The rear ends of the two bidirectional screw rods (48) are fixedly connected to the bevel gears (49). The two bevel gears (49) are meshed with the two bevel gears (11) for transmission.

6. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 5, characterized in that: The two position adjustment mechanisms (7) each include an L-shaped plate 2 (79), and the two L-shaped plates 2 (79) are fixedly connected to the two fixed rods 2 (411) through through holes opened at their relatively close ends. The two L-shaped plates 2 (79) are movably connected with a rotating rod 1 (710), and the relatively close ends of the two rotating rods 1 (710) are respectively fixedly connected to one end of the two push-pull rods 2 (712), and the other ends of the two push-pull rods 2 (712) are respectively movably connected to one end of the two push-pull rods 3 (78), and the other ends of the two push-pull rods 3 (78) are movably connected to a fixed rod 5 (77), and the relatively close ends of the two fixed rods 5 (77) are respectively fixedly connected to the left and right ends of the concave mounting frame (51).

7. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 6, characterized in that: The two rotating rods 1 (710) are fixedly connected to the relatively far ends thereof with gear 2 (717), and the two gear 2 (717) are respectively meshed with the two meshing tooth plates (711) for transmission, and the front ends of the two meshing tooth plates (711) are fixedly connected to the Z-shaped plates (714), and the lower sides of the two Z-shaped plates (714) are respectively fixedly connected to the lower ends of the two electric hydraulic rods 1 (715), and the upper ends of the two electric hydraulic rods 1 (715) are fixedly connected to the fixed plate 2 (716), and the two The relatively close ends of the fixed plate 2 (716) are respectively fixedly connected to the two L-shaped plates 2 (79), the lower ends of the two L-shaped plates 2 (79) are fixedly connected to the T-shaped limiting rods 1 (713), the lower ends of the two T-shaped limiting rods 1 (713) are respectively slidably connected to the two upper ends of the Z-shaped plates (714) each having a circular through hole therein, the lower ends of the two L-shaped plates 2 (79) are fixedly connected to the L-shaped plate 3 (71), and the front ends of the two L-shaped plates 3 (71) are movably connected to the worm gear 2 (73).

8. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 7, characterized in that: The lower ends of the two worm gears (73) are fixedly connected to gears (74), the two gears (74) are respectively meshed with the two L-shaped toothed plates (511) for transmission, the two worm gears (73) are respectively meshed with the two worm wheels (75) for transmission, the two worm wheels (75) are respectively fixedly connected to one end of two rotating rods (76), the other ends of the two rotating rods (76) are respectively fixedly connected to the rear side of the head limiting mechanism (6), the two rotating rods (76) are movably connected to support plates (72), the rear ends of the two support plates (72) are respectively fixedly connected to the front ends of the two L-shaped plates (79).

9. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 8, characterized in that: The head limiting mechanism (6) comprises two winding wheels (611), the two winding wheels (611) are respectively fixedly connected to the relatively remote ends of the two rotating rods (76), the two winding wheels (611) are respectively fixedly connected to one end of two connecting ropes (610), and the two connecting ropes (610) are respectively wound around the two winding wheels (611), the other ends of the two connecting ropes (610) respectively pass through two hollow conduits (68) and are respectively fixedly connected to the relatively remote ends of the two head limiting splints (62), the relatively remote ends of the two head limiting splints (62) are both fixedly connected to two T-shaped limiting rods (63), the four T-shaped limiting rods (63) are respectively slidably connected to a concave frame (65) with two circular through holes provided inside the left and right ends, and the four T-shaped limiting rods (63) are each sleeved with a spring (64).

10. The positionable and adjustable ophthalmic examination device for eye health screening according to claim 9, characterized in that: The upper end of the concave frame (65) is fixedly connected to two electric hydraulic rods (67), the lower ends of the two electric hydraulic rods (67) are fixedly connected to the arc pressure plate (66), and the arc pressure plate (66) corresponds to the lower jaw support plate (3), the lower end of the concave frame (65) is fixedly connected to two L-shaped plates (61), the rear ends of the two L-shaped plates (61) are fixedly connected to the two front sleeves (42), the two hollow conduits (68) are fixedly connected to the L-shaped plate (69), the relatively close ends of the two L-shaped plates (69) are respectively fixedly connected to the two front sleeves (42), and the relatively close ends of the two hollow conduits (68) are respectively fixedly connected to the left and right ends of the concave frame (65).

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