CN219089253U - Device for automatically identifying rotary position of multiplying power for slit lamp - Google Patents
Device for automatically identifying rotary position of multiplying power for slit lamp Download PDFInfo
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- CN219089253U CN219089253U CN202220595492.3U CN202220595492U CN219089253U CN 219089253 U CN219089253 U CN 219089253U CN 202220595492 U CN202220595492 U CN 202220595492U CN 219089253 U CN219089253 U CN 219089253U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to a multiplying power automatic identification rotary position device for a slit lamp, which comprises a rotary drum seat and a rotary drum rotatably arranged in the rotary drum seat, wherein a first connecting hole and a second connecting hole are respectively formed in two ends of the rotary drum seat along the axial direction of the rotary drum, a multiplying power handle is fixedly arranged at one end of the rotary drum through the first connecting hole, a third connecting hole and a fourth connecting hole are respectively formed in two ends of the rotary drum seat, which are perpendicular to the axial direction of the rotary drum, of the rotary drum seat, a front cover assembly is fixedly connected with the rotary drum seat, two through holes are formed in the front cover assembly, and the front cover assembly is opposite to the third connecting hole; six groups of mounting hole pairs are respectively arranged on the rotary drum, each mounting hole pair comprises two perforations, two groups of mounting hole pairs which are opposite at will form a light path, lenses are arranged in the perforations of any two light paths, and a rotary position identification mechanism is arranged on the front cover assembly and the rotary drum. The utility model has the advantages of simple structure, convenient use and high efficiency.
Description
Technical Field
The utility model relates to the technical field of slit lamp microscopes, in particular to a device for automatically identifying a rotating position of a magnification for a slit lamp.
Background
The slit lamp is an important medical instrument for detecting the eye structure of human eyes, the eyes are illuminated through slits formed by lamplight, the slits are irradiated on the eyes to form an optical section, so that the health condition of each part of the eyes can be observed, and the slit lamp is widely applied to the detection and diagnosis of cornea, iris, crystal, anterior chamber, glaucoma and cataract, and plays an important role in early diagnosis of eye diseases.
The slit lamp is a medical microscope, the left and right light paths must be adjusted to be in focus to ensure clear and complete eye structure and no visual fatigue, and the focus must be adjusted under each multiplying power, but the focus adjustment is carried out according to experience at present, and the two light paths are respectively adjusted, so that the adjustment time is long, the efficiency is low, the precision is poor, and the inspection result is affected.
Disclosure of Invention
To the defect of the prior art, the technical problem to be solved in the application is how to provide a device for automatically identifying the rotation position of the multiplying power for the slit lamp, which is simple in structure, convenient to use and high in efficiency.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the automatic multiplying power identification rotary position device for the slit lamp comprises a rotary drum seat and a rotary drum rotatably installed in the rotary drum seat, wherein a first connecting hole and a second connecting hole are respectively formed in two ends of the rotary drum seat along the axial direction of the rotary drum, a multiplying power changing handle is fixedly installed at one end of the rotary drum through the first connecting hole, a third connecting hole and a fourth connecting hole are respectively formed in two ends of the rotary drum seat, which are perpendicular to the axial direction of the rotary drum, of the rotary drum seat, a front cover assembly is fixedly connected with the rotary drum seat, two through holes are formed in the front cover assembly, and the front cover assembly is opposite to the third connecting hole; six groups of mounting hole pairs are respectively arranged on the rotary drum, each mounting hole pair comprises two perforations, the six groups of mounting hole pairs are sequentially arranged at intervals of 60 degrees, two groups of mounting hole pairs which are directly opposite at will form an optical path, lenses are arranged in the perforations of any two optical paths, the lens multiplying power in each group of mounting hole pairs is the same, the perforations can be directly opposite to the through holes when the rotary drum rotates, and the front cover assembly and the rotary drum are provided with a rotary position identification mechanism.
The rotary position identification mechanism comprises a rear circuit board, the rear circuit board is fixedly arranged in a front cover assembly, a light hole is formed in the position, opposite to the through hole, of the rear circuit board, four hall switches which are arranged in a rectangular mode are fixedly arranged on the front cover assembly, the hall switches are electrically connected with the rear circuit board, two magnetic steels are fixedly arranged on a rotary drum, the magnetic steels are arranged in a central symmetry mode along the rotary drum, and the magnetic steels can be opposite to the hall switches in the rotation process.
The front cover assembly is provided with an accommodating groove, the rear circuit board is fixedly arranged in the accommodating groove, a bump is arranged at one end of the front cover assembly, which is not provided with the accommodating groove, the bump extends into the third connecting hole, and the rotary drum seat is fixedly connected with the bump through a bolt.
The rotary drum is characterized in that a connecting cover is arranged at each of the first connecting hole and the second connecting hole of the rotary drum seat, one end, opposite to the second connecting hole, of the rotary drum is in rotary connection with the connecting cover through a bearing, and one end, opposite to the first connecting hole, of the rotary drum is fixedly connected with the variable-magnification handle through the connecting cover.
Wherein, the locating rings are arranged in the first connecting hole and the second connecting hole of the rotary drum seat.
In conclusion, the utility model has the advantages of simple structure, convenient use and high efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a device for automatically identifying a rotation position of a slit lamp by multiplying power.
Fig. 2 is a schematic structural view of the drum and the rotary position recognition mechanism in fig. 1.
Fig. 3 is an isometric view of the alternative orientation of fig. 2.
Fig. 4 is an exploded view of fig. 1.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by the azimuth words such as "upper, lower" and "top, bottom", etc. are generally based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and these azimuth words do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
As shown in fig. 1-4, the automatic multiplying power identification rotary position device for the slit lamp comprises a rotary drum seat 1 and a rotary drum 2 rotatably installed in the rotary drum seat, wherein a first connecting hole 3 and a second connecting hole 4 are respectively formed in two ends of the rotary drum seat along the axial direction of the rotary drum, a multiplying power changing handle 5 is fixedly installed at one end of the rotary drum through the first connecting hole, a third connecting hole 6 and a fourth connecting hole 7 are respectively formed in two ends, perpendicular to the axial direction of the rotary drum, of the rotary drum seat, a front cover assembly 8 is fixedly connected to the rotary drum seat, two through holes 9 are formed in the front cover assembly, and the front cover assembly is opposite to the third connecting hole; six groups of mounting hole pairs 11 are respectively arranged on the rotary drum, each mounting hole pair comprises two perforations, the six groups of mounting hole pairs are sequentially arranged at intervals of 60 degrees, two groups of mounting hole pairs which are directly opposite at will form a light path, lenses are arranged in the perforations of any two light paths, the lens multiplying power in each group of mounting hole pairs is the same, the perforations can be directly opposite to the through holes when the rotary drum rotates, and the front cover assembly and the rotary drum are provided with a rotary position identification mechanism.
Therefore, when the rotary drum is used, the zoom handle is rotated according to the requirement, and drives the rotary drum to rotate, so that different light paths are opposite to the through holes. In the process of rotating the rotary drum, the rotary position of the rotary drum is detected by utilizing the rotary position identification mechanism, so that the light path is opposite to the through hole rapidly and the accuracy is high.
Six groups of mounting hole pairs are arranged to form three light paths, lenses are mounted in the through holes of any two light paths, two directions of each light path form two different multiplying powers, the two light paths form four different multiplying powers, and five combination modes are adopted together with the light paths without lenses, so that the lens is convenient to adjust and use according to actual needs.
The rotary position identifying mechanism comprises a rear circuit board 12, the rear circuit board is fixedly arranged in a front cover assembly, a light hole is formed in the position, opposite to the through hole, of the rear circuit board, four hall switches 14 which are arranged in a rectangular mode are fixedly arranged on the front cover assembly, the hall switches are electrically connected with the rear circuit board, two magnetic steels 13 are fixedly arranged on a rotary drum, the magnetic steels are arranged in a central symmetry mode along the rotary drum, and the magnetic steels can be opposite to the hall switches in the rotation process.
Therefore, in the rotating process of the rotary drum, each magnetic steel can be respectively corresponding to two vertically opposite Hall switches, the magnetic steel is correspondingly arranged between two optical paths with lenses, detection of four groups of different multiplying factors, namely rotating positions, is realized, at most one Hall switch detects signals at each time, and when the Hall switch cannot detect signals, the magnetic steel corresponds to a fifth group, namely the optical path without lenses is arranged. The magnetic steel is detected through the four Hall switches to obtain signals, and the multiplying power of the light path opposite to the through hole can be rapidly obtained.
The front cover assembly is provided with an accommodating groove, the rear circuit board is fixedly arranged in the accommodating groove, a bump is arranged at one end of the front cover assembly, which is not provided with the accommodating groove, the bump extends into the third connecting hole, and the rotary drum seat is fixedly connected with the bump through a bolt. The rear circuit board is convenient to install, and the front cover assembly is connected with the rotary drum seat.
The rotary drum is characterized in that a connecting cover is arranged at each of the first connecting hole and the second connecting hole of the rotary drum seat, one end, opposite to the second connecting hole, of the rotary drum is in rotary connection with the connecting cover through a bearing, and one end, opposite to the first connecting hole, of the rotary drum is fixedly connected with the variable-magnification handle through the connecting cover. The rotary drum is convenient to install, and meanwhile, the rotary drum is convenient to rotate.
Wherein, the locating rings 15 are arranged in the first connecting hole and the second connecting hole of the rotary drum seat. The positioning ring is a rubber ring, so that light leakage can be avoided. When the positioning ring is contacted with the two ends of the rotary drum, a certain guiding effect can be achieved on the rotation of the rotary drum.
Principle of:
when the rotary drum is used, the zoom handle is rotated according to the requirement, and drives the rotary drum to rotate, so that different light paths are opposite to the through holes. In the process of rotating the rotary drum, the rotary position of the rotary drum is detected by utilizing the rotary position identification mechanism, so that the light path is opposite to the through hole rapidly and the accuracy is high.
Six groups of mounting hole pairs are arranged to form three light paths, lenses are mounted in the through holes of any two light paths, two directions of each light path form two different multiplying powers, the two light paths form four different multiplying powers, and five combination modes are adopted together with the light paths without lenses, so that the lens is convenient to adjust and use according to actual needs.
Specifically, the magnification changing handle is correspondingly marked with magnification. The perforations for mounting the lenses are all provided with mounting steps.
Finally, it should be noted that: various modifications and alterations of this utility model may be made by those skilled in the art without departing from the spirit and scope of this utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. The automatic multiplying power identification rotary position device for the slit lamp is characterized by comprising a rotary drum seat and a rotary drum rotatably arranged in the rotary drum seat, wherein a first connecting hole and a second connecting hole are respectively formed in two ends of the rotary drum seat along the axial direction of the rotary drum, a multiplying power changing handle is fixedly arranged at one end of the rotary drum through the first connecting hole, a third connecting hole and a fourth connecting hole are respectively formed in two ends, perpendicular to the axial direction of the rotary drum, of the rotary drum seat, a front cover assembly is fixedly connected with the rotary drum seat, two through holes are formed in the front cover assembly, and the front cover assembly is opposite to the third connecting hole; six groups of mounting hole pairs are respectively arranged on the rotary drum, each mounting hole pair comprises two perforations, the six groups of mounting hole pairs are sequentially arranged at intervals of 60 degrees, two groups of mounting hole pairs which are directly opposite at will form an optical path, lenses are arranged in the perforations of any two optical paths, the lens multiplying power in each group of mounting hole pairs is the same, the perforations can be directly opposite to the through holes when the rotary drum rotates, and the front cover assembly and the rotary drum are provided with a rotary position identification mechanism.
2. The device for automatically identifying the rotation position of the multiplying power for the slit lamp according to claim 1, wherein the rotation position identification mechanism comprises a rear circuit board, the rear circuit board is fixedly arranged in a front cover assembly, a light hole is formed in the position, opposite to the through hole, of the rear circuit board, four hall switches which are arranged in a rectangular mode are fixedly arranged on the front cover assembly, the hall switches are electrically connected with the rear circuit board, two magnetic steels are fixedly arranged on the rotary drum, the magnetic steels are arranged in a central symmetry mode along the rotary drum, and the magnetic steels can be opposite to the hall switches in the rotation process.
3. The device for automatically identifying the rotation position of the magnification for the slit lamp according to claim 2, wherein the front cover assembly is provided with a containing groove, the rear circuit board is fixedly installed in the containing groove, a protruding block is arranged at one end of the front cover assembly, which is not provided with the containing groove, the protruding block extends into the third connecting hole, and the rotary drum seat is fixedly connected with the protruding block through a bolt.
4. The device for automatically identifying the rotation position of the magnification for the slit lamp according to claim 3, wherein the first connecting hole and the second connecting hole of the rotary drum seat are respectively provided with a connecting cover, one end of the rotary drum, which is opposite to the second connecting hole, is rotationally connected with the connecting cover through a bearing, and one end of the rotary drum, which is opposite to the first connecting hole, passes through the connecting cover and is fixedly connected with the magnification changing handle.
5. The device for automatically identifying the rotation position of the magnification for the slit lamp according to claim 4, wherein the positioning rings are arranged in the first connecting hole and the second connecting hole of the rotary drum seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220595492.3U CN219089253U (en) | 2022-03-18 | 2022-03-18 | Device for automatically identifying rotary position of multiplying power for slit lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220595492.3U CN219089253U (en) | 2022-03-18 | 2022-03-18 | Device for automatically identifying rotary position of multiplying power for slit lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219089253U true CN219089253U (en) | 2023-05-30 |
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ID=86464766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220595492.3U Active CN219089253U (en) | 2022-03-18 | 2022-03-18 | Device for automatically identifying rotary position of multiplying power for slit lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219089253U (en) |
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2022
- 2022-03-18 CN CN202220595492.3U patent/CN219089253U/en active Active
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