CN202619626U - Vision detection device capable of replacing vision chart - Google Patents
Vision detection device capable of replacing vision chart Download PDFInfo
- Publication number
- CN202619626U CN202619626U CN 201220305368 CN201220305368U CN202619626U CN 202619626 U CN202619626 U CN 202619626U CN 201220305368 CN201220305368 CN 201220305368 CN 201220305368 U CN201220305368 U CN 201220305368U CN 202619626 U CN202619626 U CN 202619626U
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- CN
- China
- Prior art keywords
- vision
- visual acuity
- chart
- acuity chart
- driving
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- 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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Abstract
The utility model discloses a vision detection device capable of replacing a vision chart. The vision detection device comprises a box, a vision chart, a standby vision chart, a lighting device, a driving shaft, a transmission shaft and a driving device, wherein the vision chart and the standby vision chart are arranged in the box and are wound into a closed ring through a rolling shaft; the driving device is connected with the rolling shaft; and the vision chart and the standby vision chart are mutually switched under driving of the rolling shaft. The vision detection device has the beneficial effects that different vision charts can be freely switched, the state that the contents of the vision chart are memorized by a tester in advance is avoided, and the fairness for vision testing is increased.
Description
Technical field
This utility model relates to a kind of visual acuity chart lamp box, relates in particular to a kind of vision checkout gear of replaceable visual acuity chart.
Background technology
Visual acuity chart is a kind of figure that tests vision, last a few row's symbols or the letter of printing of figure, and each arranges not of uniform size, and the vision power is judged with symbol or the alphabetical size that can see clearly.The visual acuity chart lamp box is that visual acuity chart is placed bright illumination place of lamp box, makes the testee under suitable illumination, test vision, in order to guarantee the accuracy of eyesight testing.In the testee, have one or two people sometimes and attempt cheating for some reason, remember that this has just influenced the correctness and the fairness of eyesight testing to the arrangement regulation of respectively arranging symbol or letter on the visual acuity chart in advance.
The utility model content
The purpose of this utility model is to provide a kind of vision checkout gear of replaceable visual acuity chart; Through at lamp box set inside spool; Make that several different visual acuity charts can roll display, overcome the deficiency that traditional visual acuity chart lamp box can not be changed visual acuity chart, thereby realize the purpose of this utility model.
The technical problem that this utility model solved can adopt following technical scheme to realize:
A kind of vision checkout gear of replaceable visual acuity chart; Comprise casing, be arranged on intravital illuminator of case and visual acuity chart; It also comprises a power transmission shaft, a driving shaft and a driving device, the said visual acuity chart ring-type visual acuity chart that main visual acuity chart and subsequent use visual acuity chart are formed by connecting of serving as reasons, and said ring-type visual acuity chart is arranged on the casing through power transmission shaft and driving shaft; And can be around power transmission shaft and drive shaft turns, said driving device is connected with driving shaft.
Further, said driving device is a driving handle or drive motors.
The beneficial effect of this utility model is:
Can freely switch different visual acuity charts, stop the tester and carried on the back the situation of visual acuity chart content down in advance, increase the fairness of eyesight testing.
Description of drawings
Fig. 1 is the structure chart of the vision checkout gear of the described replaceable visual acuity chart of this utility model.
Fig. 2 is the inner structure chart of vision checkout gear of the described replaceable visual acuity chart of this utility model.
The specific embodiment
For technological means, creation characteristic that this utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with the specific embodiment, further set forth this utility model.
As depicted in figs. 1 and 2, the vision checkout gear for the described replaceable visual acuity chart of this utility model comprises casing 100, is arranged on ring-type visual acuity chart 110, power transmission shaft 130, driving shaft 120, driving device 140 and the driving handle 141 of casing 100.
Be provided with the required illuminator of vision checkout gear in the casing 100, like daylight lamp.
Ring-type visual acuity chart 110 is formed by connecting main visual acuity chart and subsequent use visual acuity chart, and ring-type visual acuity chart 110 is arranged on the casing 100 through power transmission shaft 130 and driving shaft 120, can rotate around power transmission shaft 130 and driving shaft 120 simultaneously.
For the automatization of implement device, this driving device 140 specifically can be provided with drive motors.
Can realize in the vision checkout gear based on such scheme formation that main visual acuity chart and subsequent use visual acuity chart switch each other under the drive of power transmission shaft 130 and driving shaft 120.
More than show and described ultimate principle of this utility model and the advantage of principal character and this utility model.
The technical staff of the industry should understand; This utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the description that this utility model just is described; Under the prerequisite that does not break away from this utility model spirit and scope, this utility model also has various changes and modifications, and these variations and improvement all fall in this utility model scope that requires protection.This utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. the vision checkout gear of a replaceable visual acuity chart; Comprise casing, be arranged on intravital illuminator of case and visual acuity chart, it is characterized in that, said vision checkout gear also comprises a power transmission shaft, a driving shaft and a driving device; The said visual acuity chart ring-type visual acuity chart that main visual acuity chart and subsequent use visual acuity chart are formed by connecting of serving as reasons; Said ring-type visual acuity chart is arranged on the casing through power transmission shaft and driving shaft, and can be around power transmission shaft and drive shaft turns, and said driving device is connected with driving shaft.
2. the vision checkout gear of replaceable visual acuity chart as claimed in claim 1 is characterized in that, said driving device is a driving handle or drive motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305368 CN202619626U (en) | 2012-06-27 | 2012-06-27 | Vision detection device capable of replacing vision chart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305368 CN202619626U (en) | 2012-06-27 | 2012-06-27 | Vision detection device capable of replacing vision chart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202619626U true CN202619626U (en) | 2012-12-26 |
Family
ID=47372880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305368 Expired - Fee Related CN202619626U (en) | 2012-06-27 | 2012-06-27 | Vision detection device capable of replacing vision chart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202619626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615822A (en) * | 2016-02-20 | 2016-06-01 | 王静 | High-grade LED visual chart lamp box special for low vision |
-
2012
- 2012-06-27 CN CN 201220305368 patent/CN202619626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105615822A (en) * | 2016-02-20 | 2016-06-01 | 王静 | High-grade LED visual chart lamp box special for low vision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20130627 |