CN203341719U - Rotary drum type visual testing instrument - Google Patents
Rotary drum type visual testing instrument Download PDFInfo
- Publication number
- CN203341719U CN203341719U CN 201320420561 CN201320420561U CN203341719U CN 203341719 U CN203341719 U CN 203341719U CN 201320420561 CN201320420561 CN 201320420561 CN 201320420561 U CN201320420561 U CN 201320420561U CN 203341719 U CN203341719 U CN 203341719U
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- rotary drum
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Abstract
The utility model provides a rotary drum type visual testing instrument and relates to improvement of a visual chart structure. The rotary drum type visual testing instrument is accurate in testing and has an illumination function and a timing function. The rotary drum type visual testing instrument comprises a visual chart body and is structurally characterized in that the visual chart body comprises a box body, wherein the front side of the box body is provided with an opening, at least three transverse sign brackets are evenly distributed in the box body from top to down and are cuboids, testing signs adhere to four sides of each sign bracket, two ends of each sign bracket are connected with the side walls of the box body through a rotary shaft, the rotary shaft penetrates the side walls of the box body, and a hand-rocking rod is arranged at the end portion of the rotary shaft outside the box body. At least one of the upper side and the lower side in the box body is provided with an illuminating lamp, and an electronic watch is arranged at the top end of the box body.
Description
Technical field
This utility model relates to a kind of improvement of visual acuity chart structure.
Background technology
Visual acuity chart is a kind of device given a test of one's eyesight, and there is following problem in existing visual acuity chart, as: when taking an examination health check-up, as many people can remember the visual acuity chart content in advance, caused detection architecture inaccurate.At present, the technology about visual acuity chart existing and that once had has been made very fruitful effort to the function that increases visual acuity chart, also once designs many outstanding technical schemes.As being declared by Du Jiang of State Intellectual Property Office in 2013 bulletin, application number is: No. 201220688296.7, title is the technical scheme that the utility model patent of " convenient eye chart " adopts, and at the technical elements of visual acuity chart, is of great value innovation and creation.This utility model arranges display lamp under the test symbol of visual acuity chart, controls the mode of display lamp by panel, has alleviated medical worker's work difficulty.But it also has many deficiencies; As: it can not solve the visual acuity chart content and fix, and easily remembers, causes the inaccurate problem of test; In addition, it does not have illumination functions, can not solve evening at the insufficient light place, and the problem of being inconvenient to test, do not have clocking capability.
Summary of the invention
This utility model is exactly for the problems referred to above, provides a kind of and tests accurately, illumination functions is arranged and the drum-type eyesight detecting instrument of clocking capability is arranged.
For achieving the above object, this utility model adopts following technical scheme, this utility model comprises the visual acuity chart body, its structural feature is: described visual acuity chart body comprises casing, the front side of casing is provided with opening, be evenly equipped with from top to bottom at least three horizontal symbol carriages in casing, described symbol carriage is cuboid, test symbol is all posted at the four sides of symbol carriage, the two ends of symbol carriage all are connected with the sidewall of casing by rotating shaft, rotating shaft, through wall box, is provided with joystick in casing outer shaft end; In the interior upper and lower both sides of casing, at least one side is provided with illuminating lamp, and the casing top is provided with electronic watch.
As a kind of preferred version, described illuminating lamp is the LED lamp; LED lamp good illumination effect and long service life.
As another kind of preferred version, be provided with 8 symbol carriages in casing; A plurality of symbol carriages can ensure that test is more accurate.
This utility model beneficial effect:
1, test accurately
The front side of this utility model casing is provided with opening, be evenly equipped with from top to bottom at least three horizontal symbol carriages in casing, described symbol carriage is cuboid, test symbol is all posted at the four sides of symbol carriage, the two ends of symbol carriage all are connected with the sidewall of casing by rotating shaft, rotating shaft, through wall box, is provided with joystick in casing outer shaft end; By the joystick rotating shaft, rotating shaft drives the symbol carriage turns, with reach symbol on the reindexing carriage towards purpose, the symbol that so just not there will be the testee to remember visual acuity chart towards, tested inaccurate problem and caused.
2, illumination functions is arranged
In the interior upper and lower both sides of this utility model casing, at least one side is provided with illuminating lamp; While using described drum-type eyesight detecting instrument test evening at the insufficient light place, may cause test inaccurate, now can open described illuminating lamp and be thrown light on, make test structure more accurate.
3, clocking capability is arranged
This utility model casing top is provided with electronic watch; While using described drum-type eyesight detecting instrument test vision, can carry out timing by electronic watch, by the time of answering out correct option, judgement testee's eyesight status, as answered out the correct direction of test symbol in three seconds, explanation sees too clearly; Answered out between three to five seconds, illustrate and see fuzzylyyer; Can know like this judgement testee's eyesight status.
The accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In figure, 1 is that joystick, 2 is that symbol carriage, 3 is that rotating shaft, 4 is that illuminating lamp, 5 is that casing, 6 is electronic watch.
The specific embodiment
As shown in Figure 1, this utility model comprises the visual acuity chart body, it is characterized in that: described visual acuity chart body comprises casing 5, the front side of casing 5 is provided with opening, is evenly equipped with from top to bottom at least three horizontal symbol carriages 2 in casing 5, and described symbol carriage 2 is cuboid, test symbol is all posted at the four sides of symbol carriage 2, the two ends of symbol carriage 2 all are connected with the sidewall of casing 5 by rotating shaft 3, and rotating shaft 3, through casing 5 sidewalls, is provided with joystick 1 in casing 5 outer shaft 3 ends; In the interior upper and lower both sides of casing 5, at least one side is provided with illuminating lamp 4, and casing 5 tops are provided with electronic watch 6.
Described illuminating lamp 4 is the LED lamp; LED lamp good illumination effect and long service life.
Be provided with eight symbol carriages 2 in casing 5; A plurality of symbol carriages 2 can ensure that test is more accurate.
Below in conjunction with accompanying drawing 1 explanation one-off process of the present utility model.
During use, can drive symbol carriage 2 by joystick 1 rotating shaft 3 and rotate, in order to the symbol on symbol carriage 2 is adjusted.While using described drum-type eyesight detecting instrument test evening at the insufficient light place, can open illuminating lamp 4 illuminations.While using described drum-type eyesight detecting instrument test vision, can carry out timing by electronic watch 6, by the time of answering out correct option, judgement testee's eyesight status, as answered out the correct direction of test symbol in three seconds, explanation sees too clearly; Answered out between three to five seconds, illustrate and see fuzzylyyer; Can know like this judgement testee's eyesight status.
Claims (3)
1. drum-type eyesight detecting instrument, comprise the visual acuity chart body, it is characterized in that: described visual acuity chart body comprises casing (5), the front side of casing (5) is provided with opening, be evenly equipped with from top to bottom at least three horizontal symbol carriages (2) in casing (5), described symbol carriage (2) is cuboid, test symbol is all posted at the four sides of symbol carriage (2), the two ends of symbol carriage (2) all are connected with the sidewall of casing (5) by rotating shaft (3), rotating shaft (3), through casing (5) sidewall, is provided with joystick (1) in casing (5) outer shaft (3) end; In the interior upper and lower both sides of casing (5), at least one side is provided with illuminating lamp (4), and casing (5) top is provided with electronic watch (6).
2. drum-type eyesight detecting instrument according to claim 1 is characterized in that: described illuminating lamp (4) is the LED lamp.
3. drum-type eyesight detecting instrument according to claim 1 is characterized in that: be provided with eight symbol carriages (2) in casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320420561 CN203341719U (en) | 2013-07-08 | 2013-07-08 | Rotary drum type visual testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320420561 CN203341719U (en) | 2013-07-08 | 2013-07-08 | Rotary drum type visual testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203341719U true CN203341719U (en) | 2013-12-18 |
Family
ID=49741668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320420561 Expired - Fee Related CN203341719U (en) | 2013-07-08 | 2013-07-08 | Rotary drum type visual testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203341719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111568364A (en) * | 2020-04-02 | 2020-08-25 | 李发标 | Vision detection device |
-
2013
- 2013-07-08 CN CN 201320420561 patent/CN203341719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111568364A (en) * | 2020-04-02 | 2020-08-25 | 李发标 | Vision detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |