CN211633234U

CN211633234U - Lower jaw lifting device of comprehensive optometry unit

Info

Publication number: CN211633234U
Application number: CN201921933023.2U
Authority: CN
Inventors: 江露; 彭梦玲; 马苗; 姚静; 梅光云
Original assignee: Hankou Aier Eye Hospital Co Ltd
Current assignee: Hankou Aier Eye Hospital Co Ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-10-09
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a synthesize optometry appearance lower jaw lifting device, including testing CD and mirror eye distance window, mirror eye distance window is located the positive both sides of testing CD, the top of testing CD has seted up fixed pipe, the movable rod has been inserted in the fixed pipe, screwed pipe has been seted up to its pipe wall, screwed pipe female connection has first bolt, a plurality of and first bolt matched with locating hole have been seted up to the pole body of movable rod, its top fixedly connected with stopper, and the bottom pole wall fixedly connected with volume of movable rod holds in the palm, a pair of fixed block of rear end face fixedly connected with of testing CD, be provided with the lower jaw between a pair of fixed block and hold in the palm the frame, first screw hole has been seted up on the fixed block, first screw hole with second bolt female connection has the second bolt, the first screw hole with second bolt matched with is seted up equally to the both sides top outer. The utility model has the characteristics of structural design is reasonable, and stability is high, uses comfortablely, is convenient for adjust etc.

Description

Lower jaw lifting device of comprehensive optometry unit

Technical Field

The utility model relates to an optometry equipment technical field specifically is a synthesize optometry appearance lower jaw lifting device.

Background

The existing comprehensive optometry instrument mainly comprises two parts, namely an optometry disk (commonly called lung head or bull eye) and an optotype. Before optometry, the horizontal position, the interpupillary distance (the distance between two eyes and pupils) and the spectacle distance (the distance between a lens and the front surface of an eyeball) of the optometry disk need to be adjusted. Wherein the lens eye distance (usually 12-14 mm) needs the examiner to observe whether the front surface of the cornea of the examinee is aligned with the reference line from the lens eye distance window beside the optometry disk, and needs the examiner to remind the examinee that the eye of the examinee appropriately leaves or approaches the lens or manually adjust the chin of the examinee, so that the proper lens eye distance is achieved. The forehead holds in the palm can adjust the distance between eyes and the lens through mechanisms such as knob, but adjust to standard mirror eye distance before the inspection process even checking, most examinees still can habitual upwarp chin, press close to the optometry appearance with eyes, the suitable head posture of examinee's regulation of warning that needs the examinee to stop, just so make inspection time extension, increase examiner's work load, also can bring certain error for the optometry result if careless a little, especially the number of degrees is higher, the error is big more.

The formula of the distance between the eyes is F mirror =1/(1/F eye + D), the F mirror is the frame power during the optometry, the F eye is the actual power, the D is the distance (m) between the eyes, for example, a patient with-10.00D (1000 degrees of myopia) actually, when the distance between the eyes is 12mm (0.012 m) for optometry, the F mirror is-11.36D, when the eyes are moved close to the optometry, and the distance between the eyes is 3mm, the optometry F mirror is-10.31D, the difference between the degrees is > -1.00D (namely, more than 100 degrees), the difference is very large, the difference is larger for the optometry of the patient with higher degree, and therefore, a comprehensive optometry apparatus is urgently needed to fix the chin of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's comprehensive optometry appearance and being difficult to control the mirror eye distance when carrying out the optometry to the patient to lead to the defect that the optometry error is big, provide a comprehensive optometry appearance lower jaw lifting device. The lower jaw lifting device of the comprehensive optometry instrument has the characteristics of reasonable structural design, high stability, comfort in use, convenience in adjustment and the like.

In order to achieve the above object, the utility model provides a following technical scheme: a lower jaw lifting device of a comprehensive optometry instrument comprises an optometry disk and an eye distance window, wherein the eye distance window is positioned at two sides of the front side of the optometry disk, a fixed pipe is arranged at the top of the optometry disk, a movable rod is inserted into the fixed pipe, the pipe wall of the movable rod is provided with a threaded pipe, the threaded pipe is internally threaded and connected with a first bolt, the rod body of the movable rod is provided with a plurality of positioning holes matched with the first bolt, the top end of the front frame is fixedly connected with a limiting block, the rod wall at the bottom end of the movable rod is fixedly connected with a forehead support, the rear end surface of the optometry disk is fixedly connected with a pair of fixed blocks, a lower jaw lifting frame is arranged between the pair of fixed blocks, a first threaded hole is formed in the fixed block, a second bolt is connected with the first threaded hole in an internal thread manner, the outer walls of the top ends of the two sides of the lower jaw lifting frame are also provided with first threaded holes matched with the second bolts.

Preferably, the forehead support is arc-shaped, and a layer of sweat-absorbent cotton is arranged on the surface of the inner wall of the forehead support.

Preferably, the lower jaw lifting frame is U-shaped, and the width of the lower jaw lifting frame is equal to the distance between the pair of fixing blocks.

Preferably, the inner wall of the lower jaw lifting frame is fixedly connected with a guide block, two ends of the guide block are both sleeved with a slide block, a spring is fixedly connected between the slide block and the inner wall of the lower jaw lifting frame, the top of the slide block is fixedly connected with a lower connecting seat, the bottom of the slide block is fixedly connected with a transmission block, the outer wall of the transmission block is fixedly connected with a transmission frame, the side walls of two sides of the lower jaw lifting frame are both provided with a second threaded hole, the second threaded hole is internally threaded with a threaded rod, one end of the threaded rod is fixedly connected with a crank, the tail end of the threaded rod penetrates through the transmission frame and is fixedly connected with a push block, a lifting frame is arranged above the guide block, the center of the bottom of the lifting frame is fixedly connected with an upper connecting seat, the upper connecting seat is movably connected with a connecting rod, the top end of the supporting rod is fixedly connected with a lifting plate.

Preferably, the lifting plate is arc-shaped, and a plurality of hemispherical rubber blocks are uniformly distributed on the top surface of the lifting plate.

Preferably, both sides of the bottom of the lifting frame are fixedly connected with wheel frames, the wheel frames are L-shaped, and the tail ends of the wheel frames are provided with limiting wheels.

Preferably, a circle of gear teeth are uniformly distributed on the surface of the wheel wall of the limiting wheel, and a plurality of rack teeth meshed with the gear teeth of the limiting wheel are uniformly distributed on the surfaces of the inner walls of the top ends of the two sides of the lower jaw lifting frame.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the method solves the error caused by the improper distance between the eyes of the examined person in the process of optometry, increases the optometry accuracy, avoids the discomfort and poor eyesight of the glasses wearer caused by the diopter number, and also reduces the economic loss caused by the after-sale problem;

2. the phenomenon that the examiner spends too much time to remind the examinee of paying attention to the posture is avoided, the optometry efficiency is improved, particularly in the peak period of the doctor seeing, the waiting time of the subsequent patient is shortened, and the doctor seeing process is accelerated;

3. the height of the forehead support can be adjusted by moving the movable rod up and down along the fixed pipe so as to adjust according to the eye sockets and forehead shapes of different examinees, and the distance between the eyes of the examinees and the optometry disk can meet the specified requirement and keep unchanged by adjusting the height of the lifting plate, so that the error generated in the optometry process due to the fact that the chin of the examinees upwarps is avoided;

4. in conclusion, from the professional perspective or the experience of seeing a doctor, the lower jaw lifting device can bring higher satisfaction to patients and customers, and economic benefits are increased in the field of social vision.

Drawings

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

fig. 2 is a schematic view of the back structure of the present invention;

FIG. 3 is a schematic structural view of a forehead support;

fig. 4 is a schematic structural view of the mandible holding frame.

Reference numbers in the figures: 1. testing the optical disk; 101. a scope eye distance window; 2. a fixed tube; 3. a movable rod; 4. a threaded pipe; 5. a first bolt; 6. positioning holes; 7. a limiting block; 8. forehead support; 9. a fixed block; 10. a lower jaw lifting frame; 11. a first threaded hole; 12. a second bolt; 13. sweat absorbing cotton; 14. a guide block; 15. a slider; 16. a spring; 17. a lower connecting seat; 18. a transmission block; 19. a transmission frame; 20. a second threaded hole; 21. a threaded rod; 22. a crank; 23. a push block; 24. a lifting frame; 25. an upper connecting seat; 26. a connecting rod; 27. a support bar; 28. a lifting plate; 29. a wheel carrier; 30. and a limiting wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a lower jaw lifting device of a comprehensive optometry instrument comprises an optometry disk 1 and an eye distance window 101, wherein the eye distance window 101 is positioned at two sides of the front surface of the optometry disk 1, whether the front surface of a cornea of a person to be examined is aligned with a reference line can be observed through the eye distance window 101, the person to be examined needs to remind the person to be examined that the eye of the person to be examined is properly away from/close to the lens or manually adjust the chin of the person to be examined, so that the proper eye distance is achieved, a fixed pipe 2 is arranged at the top of the optometry disk 1, a movable rod 3 is inserted into the fixed pipe 2, the movable rod 3 can move up and down along the fixed pipe 2, a threaded pipe 4 is arranged on the pipe wall of the movable rod, a first bolt 5 is in threaded connection with the threaded pipe 4, a plurality of positioning holes 6 matched with the first bolt 5 are arranged on the rod body of the movable rod 3, the extension amount of the movable rod 3 can be adjusted and fixed, the forehead support 8 is fixedly connected to the bottom end wall of the movable rod 3, the forehead support 8 is arc-shaped and can be attached to the forehead of a person to be examined, a layer of sweat-absorbing cotton 13 is arranged on the surface of the inner wall of the forehead support 8, sweat can be absorbed when the forehead support 8 is in contact with the forehead of the person to be examined, so that the person to be examined feels uncomfortable due to the sweating of the forehead is avoided, a pair of fixed blocks 9 is fixedly connected to the rear end face of the optometry disk 1, a lower jaw support frame 10 is arranged between the pair of fixed blocks 9, a first threaded hole 11 is formed in each fixed block 9, a second bolt 12 is connected to each first threaded hole 11 in each first threaded hole 11, first threaded holes 11 matched with the second bolts 12 are also formed in the outer walls of the top ends of the lower jaw support frame 10, the lower jaw support frame 10 is U-shaped, the width of the lower jaw support frame 10 is equal to the interval between the pair, the two ends of the guide block 14 are respectively sleeved with a slide block 15, a spring 16 is fixedly connected between the slide block 15 and the inner wall of the mandible lifting frame 10, the top of the slide block 15 is fixedly connected with a lower connecting seat 17, the bottom of the slide block 15 is fixedly connected with a transmission block 18, the outer wall of the transmission block 18 is fixedly connected with a transmission frame 19, the side walls of the two sides of the mandible lifting frame 10 are respectively provided with a second threaded hole 20, the second threaded hole 20 is internally threaded with a threaded rod 21, one end of the threaded rod 21 is fixedly connected with a crank 22, the tail end of the threaded rod penetrates through the transmission frame 19 and is fixedly connected with a push block 23, a lifting frame 24 is arranged above the guide block 14, the center of the bottom of the lifting frame 24 is fixedly connected with an upper connecting seat 25, the upper connecting seat 25 is movably connected with a connecting rod 26, the other end of, the lifting plate 28 is arc-shaped, can be attached to the lower jaw of the examinee, a plurality of hemispherical rubber blocks are uniformly distributed on the top surface of the lifting plate, the rubber blocks have elasticity, and can be elastically deformed when being extruded, so that the effect of buffer protection can be achieved, so that the lower jaw of the examinee is prevented from being rubbed with the lifting plate 28 to cause discomfort, the wheel carrier 29 is fixedly connected to both sides of the bottom of the lifting frame 24, the wheel carrier 29 is L-shaped, the limiting wheel 30 is installed at the tail end of the lifting frame, a circle of gear teeth are uniformly distributed on the surface of the wheel wall of the limiting wheel 30, a plurality of rack teeth meshed with the gear teeth of the limiting wheel 30 are uniformly distributed on the surface of the inner wall of the top ends of the lower jaw lifting frame 10, the stability of the lifting frame 24 can be improved by utilizing the meshing effect between the rack.

The working principle is as follows: when the utility model is used, firstly, the lower jaw lifting frame 10 is placed between a pair of fixed blocks 9, then the second bolt 12 is screwed into the first threaded hole 11, thereby fixing the lower jaw lifting frame 10, then the lower jaw of the examinee is attached on the arc lifting plate 28, and the forehead is contacted with the forehead support 8, the height of the forehead support 8 can be adjusted by moving the movable rod 3 up and down along the fixed tube 2, so as to be adjusted according to the eye socket and forehead shape of different examinees, after reaching the proper position, the first bolt 5 in the threaded tube 4 is aligned and screwed into the positioning hole 6 with the corresponding height, so as to fix the movable rod 3 and the forehead support 8, the surface of the forehead support 8 is provided with sweat absorbing cotton 13, sweat can be absorbed, so as to avoid the forehead sweat of the examinee from producing discomfort, when the distance of the eye needs to be adjusted, the crank 22 is held and rotated to drive the threaded rod 21 to rotate inwards along the second threaded hole 20, when the threaded rod 21 rotates, the push block 23 at the tail end of the threaded rod can drive the transmission block 18 and the sliding block 15 to slide along the guide block 14 from two sides to the middle direction, the sliding connecting rod 26 along the sliding block 15 can deflect, the lifting frame 24 is upwards jacked up through the upper connecting seat 25, then the height of the lifting plate 28 can be adjusted, the distance between the eyes of the examinee and the optometry disk 1 can meet the specified requirement and can be kept unchanged, and the fact that the examinee upwarps on the chin to cause the optometry process to generate errors is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lower jaw lifting device of a comprehensive optometry instrument comprises an optometry disk (1) and an eye distance window (101), and is characterized in that: the sight distance window (101) is positioned on two sides of the front face of an optometry disk (1), a fixed pipe (2) is arranged at the top of the optometry disk (1), a movable rod (3) is inserted into the fixed pipe (2), a threaded pipe (4) is arranged on the pipe wall of the fixed pipe, a first bolt (5) is connected with the threaded pipe (4) in an internal thread manner, a plurality of positioning holes (6) matched with the first bolt (5) are arranged on the rod body of the movable rod (3), a limiting block (7) is fixedly connected to the top end of the movable rod, a forehead support (8) is fixedly connected to the bottom end rod wall of the movable rod (3), a pair of fixed blocks (9) is fixedly connected to the rear end face of the optometry disk (1), a pair of mandible support lifting frames (10) are arranged between the fixed blocks (9), a first threaded hole (11) is arranged on the fixed blocks (9), a second bolt, the outer walls of the top ends of the two sides of the lower jaw lifting frame (10) are also provided with first threaded holes (11) matched with the second bolts (12).

2. The device of claim 1 for holding the lower jaw of an phoropter, wherein: the forehead support (8) is arc-shaped, and a layer of sweat-absorbent cotton (13) is arranged on the surface of the inner wall of the forehead support.

3. The device of claim 1 for holding the lower jaw of an phoropter, wherein: the lower jaw lifting frame (10) is U-shaped, and the width of the lower jaw lifting frame is equal to the distance between the pair of fixing blocks (9).

4. The device of claim 1 for holding the lower jaw of an phoropter, wherein: the inner wall of the lower jaw lifting frame (10) is fixedly connected with a guide block (14), two ends of the guide block (14) are respectively sleeved with a sliding block (15), a spring (16) is fixedly connected between the sliding block (15) and the inner wall of the lower jaw lifting frame (10), the top of the guide block is fixedly connected with a lower connecting seat (17), the bottom of the sliding block (15) is fixedly connected with a transmission block (18), the outer wall of the transmission block (18) is fixedly connected with a transmission frame (19), two side walls of the lower jaw lifting frame (10) are respectively provided with a second threaded hole (20), the second threaded holes (20) are internally threaded with a threaded rod (21), one end of the threaded rod (21) is fixedly connected with a crank (22), the tail end of the threaded rod penetrates through the transmission frame (19) and is fixedly connected with a push block (23), a lifting frame (24) is arranged above the guide block (14), and the bottom center of the lifting frame (, go up swing joint on connecting seat (25) and have connecting rod (26), the other end swing joint of connecting rod (26) is on connecting seat (17) down, the top fixedly connected with of crane (24) is a pair of bracing piece (27), the top fixedly connected with of bracing piece (27) lifts board (28).

5. The device of claim 4 for holding the lower jaw of an phoropter, wherein: the lifting plate (28) is arc-shaped, and a plurality of hemispherical rubber blocks are uniformly distributed on the top surface of the lifting plate.

6. The device of claim 4 for holding the lower jaw of an phoropter, wherein: both sides of the bottom of the lifting frame (24) are fixedly connected with wheel frames (29), the wheel frames (29) are L-shaped, and the tail ends of the wheel frames are provided with limiting wheels (30).

7. The device of claim 6, wherein the device comprises: a circle of gear teeth are uniformly distributed on the surface of the wheel wall of the limiting wheel (30), and a plurality of rack teeth meshed with the gear teeth of the limiting wheel (30) are uniformly distributed on the inner wall surfaces of the top ends of the two sides of the lower jaw lifting frame (10).