CN212261334U - Head bracket for visual examination - Google Patents
Head bracket for visual examination Download PDFInfo
- Publication number
- CN212261334U CN212261334U CN202020268878.4U CN202020268878U CN212261334U CN 212261334 U CN212261334 U CN 212261334U CN 202020268878 U CN202020268878 U CN 202020268878U CN 212261334 U CN212261334 U CN 212261334U
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- CN
- China
- Prior art keywords
- shell
- fixedly connected
- vertical screw
- rotating rod
- internal thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Eye Examination Apparatus (AREA)
Abstract
The utility model relates to a head bracket for visual acuity examination, the top of a fixed support of the head bracket is fixedly connected with a shell, the interior of the shell is provided with a vertical screw rod, the two ends of the vertical screw rod are respectively rotatably connected with the inner wall of the shell through a first bearing, an internal thread sleeve is in threaded connection on the vertical screw rod, two sides of the internal thread sleeve are fixedly connected with a support rod, the surface of the vertical screw rod is positioned below the internal thread sleeve and is fixedly connected with a driven bevel gear, a rotating rod is arranged in the shell, the left end of the rotating rod is fixedly connected with a driving bevel gear meshed with the driven bevel gear, the right end of the rotating rod is rotatably connected with the shell through a second bearing, the right end of the rotating rod extends out of the shell and is fixedly connected with a crank, the top of the support rod extends out of the shell and is fixedly, and the top of the sleeve support is in threaded connection with a locking bolt. The head bracket can be adjusted in height according to the height of the examiner.
Description
Technical Field
The utility model relates to an eyesight inspection equipment technical field specifically is a head bracket for eyesight inspection.
Background
Visual inspection needs to use head bracket to carry on spacingly to the inspector, but current head bracket can not effectively carry out altitude mixture control according to inspector's height, causes the inspector position of sitting uncomfortable, and this is exactly the weak point that prior art exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a head bracket for visual examination, this head bracket can carry out altitude mixture control according to examiner's height.
In order to achieve the above object, the utility model provides a following technical scheme: a head bracket for visual examination comprises a fixed support, wherein the top of the fixed support is fixedly connected with a shell, a vertical screw is arranged in the shell, two ends of the vertical screw are respectively rotatably connected with the inner wall of the shell through a first bearing, the surface of the vertical screw is in threaded connection with an internal thread sleeve, two sides of the internal thread sleeve are symmetrically and fixedly connected with a support rod, the surface of the vertical screw is positioned below the internal thread sleeve and is fixedly connected with a driven bevel gear, a rotating rod is arranged in the shell, the left end of the rotating rod is fixedly connected with a driving bevel gear meshed with the driven bevel gear, the right end of the rotating rod is rotatably connected with the shell through a second bearing, the right end of the rotating rod extends out of the shell and is fixedly connected with a crank, the top of the support rod extends out of the shell and is fixedly connected with a bracket, two sides of the top of the shell are symmetrically, and the top of the sleeve support is in threaded connection with a locking bolt matched with the limiting frame.
Preferably, the surface of the limiting frame is sleeved with a sheath.
Preferably, the two sides of the supporting rod are symmetrically and fixedly connected with sliding blocks, and the inner wall of the shell is fixedly connected with sliding rails in sliding fit with the sliding blocks.
Preferably, the top of the bracket is fixedly connected with a sponge pad.
Preferably, the two sides of the fixed support are fixedly connected with fixed blocks, and the fixed blocks are in threaded connection with fixing bolts.
Preferably, the top of the shell is provided with a through hole in clearance fit with the support rod.
Compared with the prior art, the beneficial effects of the utility model are as follows: in this head bracket for eyesight examination, the height of bracket can be adjusted according to examiner's height to make the examiner inspect with comfortable position of sitting, do benefit to going on smoothly of inspection. Therefore, compared with the prior art, the utility model has the substantive characteristics and the progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the present invention;
FIG. 3 is an enlarged view of point A in FIG. 2;
fig. 4 is an enlarged view of point B in fig. 2.
In the figure: 1. fixing a bracket; 2. a housing; 3. a vertical screw; 4. a first bearing; 5. a strut; 6. an internally threaded sleeve; 7. a driven bevel gear; 8. a second bearing; 9. rotating the rod; 10. a driving bevel gear; 11. a crank; 12. a bracket; 13. a sleeve holder; 14. a limiting frame; 15. locking the bolt; 16. a sheath; 17. a slider; 18. a slide rail; 19. a sponge cushion; 20. a fixed block; 21. and (5) fixing the bolt.
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.
The utility model provides a head bracket for visual acuity examination, as shown in the figure, it includes fixed bolster 1, the top of fixed bolster 1 has linked firmly casing 2, the inside of casing 2 is provided with vertical screw rod 3, vertical screw rod 3's both ends are connected through the inner wall rotation of first bearing 4 with casing 2 respectively, vertical screw rod 3's surface threaded connection has internal thread sleeve 6, internal thread sleeve 6's bilateral symmetry has linked firmly branch 5, vertical screw rod 3's surface is located the below of internal thread sleeve 6 and has linked firmly driven conical gear 7, be provided with dwang 9 in the casing 2, the left end of dwang 9 has linked firmly and has driven conical gear 10, the right-hand member that has driven conical gear 7 to mesh to rotate with casing 2 through second bearing 8 and be connected, and the right-hand member of dwang 9 stretches out casing 2 and has linked firmly crank 11, the top of branch 5 stretches out casing 2 and has linked firmly bracket 12, the two sides of the top of the shell 2 are symmetrically fixedly connected with sleeve supports 13, the top of each sleeve support 13 is connected with a limiting frame 14 in an inserting mode, and the top of each sleeve support 13 is in threaded connection with a locking bolt 15 matched with the limiting frame 14.
The surface of the limiting frame 14 is sleeved with a sheath 16, and the sheath 16 can effectively improve the use comfort of a detector.
The bilateral symmetry of branch 5 has linked firmly slider 17, the inner wall of casing 2 has linked firmly slide rail 18 with slider 17 sliding fit, through the cooperation of slider 17 with slide rail 18, can effectively improve the stability that branch 5 removed.
The top of bracket 12 has linked firmly foam-rubber cushion 19, and foam-rubber cushion 19 can effectively improve the use travelling comfort of detection person.
Fixed block 20 has all been linked firmly to the both sides of fixed bolster 1, threaded connection has fixing bolt 21 on the fixed block 20, can install fixedly the device through fixing bolt 21 and fixed block 20.
The top of the shell 2 is provided with a through hole in clearance fit with the supporting rod 5, and the through hole can ensure the smooth movement of the supporting rod 5.
This head bracket for visual acuity test when using, can be according to the height of inspector's height adjustment bracket 12, during the regulation, can cross crank 11 and drive dwang 9 and rotate, dwang 9 is through driven conical gear 7, initiative conical gear 10 and first bearing 4's cooperation drives vertical screw 3 and rotates, vertical screw 3's rotation makes internal thread sleeve 6 remove along it, internal thread sleeve 6 drives branch 5 synchronous movement, branch 5 drives bracket 12 and removes, thereby bracket 12's altitude mixture control has been realized, then adjust spacing 14's height, adjust and screw up locking bolt 15 after targetting in place, fix spacing 14 and can carry out visual acuity test.
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 (6)
1. The utility model provides a head bracket for visual examination, it includes fixed bolster (1), its characterized in that: the top of the fixed support (1) is fixedly connected with a shell (2), a vertical screw (3) is arranged inside the shell (2), two ends of the vertical screw (3) are respectively connected with the inner wall of the shell (2) through a first bearing (4) in a rotating manner, an internal thread sleeve (6) is connected with the surface of the vertical screw (3) in a threaded manner, supporting rods (5) are symmetrically and fixedly connected with two sides of the internal thread sleeve (6), a driven bevel gear (7) is fixedly connected with the surface of the vertical screw (3) below the internal thread sleeve (6), a rotating rod (9) is arranged in the shell (2), a driving bevel gear (10) meshed with the driven bevel gear (7) is fixedly connected with the left end of the rotating rod (9), the right end of the rotating rod (9) is rotatably connected with the shell (2) through a second bearing (8), and the right end of the rotating rod (9) extends out of the shell (2) and is fixedly connected, the top of branch (5) stretches out casing (2) and has linked firmly bracket (12), the bilateral symmetry at casing (2) top has linked firmly sleeve holder (13), the top of sleeve holder (13) is pegged graft and is had spacing (14), the top threaded connection of sleeve holder (13) has with spacing (14) complex locking bolt (15).
2. A head rest for visual examination according to claim 1, wherein: the surface of the limiting frame (14) is sleeved with a sheath (16).
3. A head rest for visual examination according to claim 2, wherein: the bilateral symmetry of branch (5) has linked firmly slider (17), the inner wall of casing (2) has linked firmly slide rail (18) with slider (17) sliding fit.
4. A head rest for visual examination according to claim 3, wherein: the top of the bracket (12) is fixedly connected with a sponge pad (19).
5. A head rest for eyesight examination according to claim 4, wherein: fixed block (20) have all been linked firmly to the both sides of fixed bolster (1), threaded connection has fixing bolt (21) on fixed block (20).
6. A head rest for eyesight examination according to claim 5, wherein: the top of the shell (2) is provided with a through hole which is in clearance fit with the supporting rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020268878.4U CN212261334U (en) | 2020-03-06 | 2020-03-06 | Head bracket for visual examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020268878.4U CN212261334U (en) | 2020-03-06 | 2020-03-06 | Head bracket for visual examination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212261334U true CN212261334U (en) | 2021-01-01 |
Family
ID=73873835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020268878.4U Expired - Fee Related CN212261334U (en) | 2020-03-06 | 2020-03-06 | Head bracket for visual examination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212261334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113425251A (en) * | 2021-05-28 | 2021-09-24 | 云南中医药大学 | Eye diagnosis image recognition system and method |
-
2020
- 2020-03-06 CN CN202020268878.4U patent/CN212261334U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113425251A (en) * | 2021-05-28 | 2021-09-24 | 云南中医药大学 | Eye diagnosis image recognition system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |