Adjustable visual chart

Abstract

The utility model discloses an adjustable visual chart which comprises a rolling visual chart and a sliding rail. The rolling visual chart is of a double-layer structure, and through rolling arrangement, one of a C-shaped table, a graph table and an E-shaped table is displayed on the outer side face. The sliding rail is further arranged on the back face of the rolling visual chart, the rolling visual chart is movably arranged on the wall face through the sliding rail, and the sliding rail is vertically arranged in the height direction. Compared with the prior art, the adjustable visual chart provided by the technical scheme has the advantages that various types of visual charts can be integrated and arranged, the visual charts can be conveniently selected according to actual inspection requirements, meanwhile, operation convenience is brought to inspectors with different heights through the design of the sliding rails, and the inspection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vision testing equipment, and in particular relates to an adjustable vision chart. Background Art

[0002] Vision test is the most basic physical examination item for people, and it is an indispensable item in both fitting glasses and physical examination. Especially in the physical examination for driving license and military physical examination, the requirements for vision test are different, so the form of vision chart is also different.

[0003] However, the visual acuity chart in the prior art is usually fixed in a house, needs to occupy a large space for different forms, and cannot be adjusted in height, which brings a lot of inconvenience to the tested person and medical staff.

[0004] Therefore, there is an urgent need for a vision chart that can mix multiple forms and can be adjusted in height to meet the needs of multi-functional vision examination. Utility Model Content

[0005] In order to solve the problem in the above-mentioned prior art that ordinary vision charts have a single form and cannot be adjusted in the height direction; the utility model provides an adjustable vision chart, which can adjust the style and height of the vision chart by providing a vision chart with a rolling setting and a movable guide rail, so as to solve the technical difficulties of the vision chart in the prior art.

[0006] The utility model provides an adjustable eye chart, and the specific technical scheme is as follows, comprising: a rolling eye chart, a slide rail;

[0007] The rolling eye chart has a double-layer structure, and is arranged to be rolled so that one of a C-chart, a graphic chart, and an E-chart is displayed on the outer side;

[0008] The sliding rail is also arranged on the back of the rolling eye chart, and the rolling eye chart can be movably arranged on the wall through the sliding rail, and the sliding rail is vertically arranged along the height direction.

[0009] Preferably, there are two slide rails, which are arranged parallel to each other on both sides of the back side of the rolling eye chart.

[0010] Preferably, a fixing device is further provided on the slide rail for fixing and locking the rolling eye chart in the height direction, and the rolling eye chart is kept in an active or fixed state with the wall through the fixing device.

[0011] Preferably, the specific structure of the fixing device is a bolt fastening structure, and a plurality of bolt holes are provided on the slide rail, and the bolts are fastened to the rolling eye chart through the bolt holes.

[0012] Preferably, the specific structure of the rolling eye chart also includes: a rolling scroll, an adjustment mechanism, a tail plug, and a sealing head;

[0013] The scrolling reel is arranged on the top of the scrolling eye chart to drive the eye chart to scroll and display;

[0014] The adjustment mechanism and the tail plug are respectively arranged on both sides of the top of the rolling eye chart;

[0015] Sealing heads are arranged on both sides of the bottom of the rolling eye chart.

[0016] Preferably, the adjustment mechanism is a bead structure for adjusting the degree of scrolling of the scrolling eye chart.

[0017] Preferably, a mirror structure is also provided on the side of the rolling eye chart.

[0018] Preferably, a storage box is also provided on the bottom surface of the rolling eye chart.

[0019] Preferably, light source components are evenly arranged on the wall behind the scrolling eye chart.

[0020] Preferably, the order of styles of the scrolling vision chart is: C-chart, graphic chart, E-chart.

[0021] Compared with the prior art, the adjustable eye chart provided by the present technical solution can integrate various styles of eye charts and can be selected according to actual inspection needs. At the same time, through the design of the slide rail, it brings operational convenience to inspectors of different heights and improves inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A main view of an adjustable eye chart in a specific embodiment;

[0024] Figure 2 Main view of the adjustable eye chart.

[0025] The specific figures are:

[0026] 1. Rolling eye chart; 2. Slide rail; 3. Fixing device; 4. Rolling reel; 5. Adjustment structure; 6. Tail plug; 7. End cover; 8. Mirror structure; 9. Storage box. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0032] Please refer to Figure 1 to Figure 2, the technical scheme of the utility model is specifically described as an adjustable vision chart, the structure of the adjustable vision chart includes: a rolling vision chart 1, a slide rail 2;

[0033] Compared with the single-layer display style of the vision chart structure in the prior art, the scrolling vision chart 1 in the present application adopts a double-layer structure, with the front side being the display layer for people to observe and check their vision. Through the double-layer scrolling design, multiple vision charts such as the C-chart, the graphic chart, and the E-chart can be integrated on one vision chart. When scrolling to different positions, one of them is set on the front side for display;

[0034] Furthermore, compared with the prior art arrangement of fixing the eye chart on the wall, the present application scheme further provides the slide rail 2 on the back of the rolling eye chart 1, and the slide rail 2 is arranged along the height direction. The rolling eye chart 1 can be movably arranged on the wall through the slide rail 2 and can be adjusted in the height direction, which is convenient for medical staff of various heights to operate and can also adapt to the height of the person to be tested.

[0035] As a preferred example, Figure 2 As shown, in the present embodiment, the specific number of the slide rails 2 is two, and the two slide rails 2 are arranged parallel to each other on both sides of the back of the rolling vision chart 1. By arranging the slide rails 2 in parallel on both sides, the force on the rolling vision chart 1 can be made more uniform, and the arrangement of the slide rails 2 on both sides reduces the interference effect on the rolling vision chart 1 in the middle, making the detection as direct and convenient as possible; specifically, in the present embodiment, the bottom installation height of the slide rail 2 is 110 cm from the bottom surface, the length of the slide rail 2 itself is 30 cm, and the installation is arranged with a spacing of 30 cm between each other.

[0036] Preferably, after the medical staff adjusts the height of the rolling eye chart 1 to the desired height, the rolling eye chart 1 needs to be fixed in order to maintain the height for testing the subject; Figure 1 As shown, in this embodiment, a fixing device 3 is further provided on the slide rail 2. By using the fixing device 3, the rolling eye chart 1 can have two states, an upward and downward movable state and a fixed state relative to the wall, and can be freely switched according to actual usage.

[0037] Furthermore, the specific structure of the fixing device 3 is a bolt fastening structure, and a plurality of bolt holes are provided on the slide rail 2. When the bolts enter the interior of the slide rail 2 through the bolt holes and are fastened in cooperation with the nuts, the purpose of fixing the rolling eye chart 1 is achieved; specifically, in the present embodiment, the fixing devices 3 are respectively provided at 10 cm and 20 cm of the slide rail 2 to fix the rolling eye chart 1 at different heights.

[0038] Preferably, Figure 1 As shown, in this embodiment, the specific structure of the rolling eye chart 1 is: a rolling reel 4, an adjustment mechanism 5, a tail plug 6, and a head 7;

[0039] In order to achieve the rolling effect of the double-layer structure display of the rolling eye chart 1, the rolling reel 4 is arranged on the top to drive the rolling eye chart 1 to be rolled for display, and at the same time, the adjustment mechanism 5 is arranged on the side of the top of the rolling eye chart 1 to realize the rolling adjustment of the rolling eye chart 1; the other side is provided with the tail plug 6 to balance the rolling eye chart 1, and together with the head 7 arranged on both sides of the bottom, the rolling eye chart 1 is sealed to prevent the external environment from polluting the interior of the rolling eye chart 1, thereby affecting the observation effect during inspection.

[0040] Preferably, the specific structure of the adjustment mechanism 5 is a bead structure design. When medical staff replace different types of eye charts according to different testing requirements, and the design of the bead structure can have a self-locking function, the scrolling degree of the scrolling eye chart 1 can be adjusted in time, and a suitable eye chart can be selected for examination.

[0041] Preferably, Figure 1 As shown, in the present embodiment, a mirror structure 8 is further provided on the side of the rolling eye chart 1; specifically, in the present embodiment, the mirror structure 8 is movably provided on the side of the rolling eye chart 1 through a hinge, and avoids the fixing device 3. Through the mirror structure 8, it is convenient for medical personnel to identify in the mirror whether the visual mark indicated by the patient is correct.

[0042] Preferably, Figure 1 As shown, in the present embodiment, a storage box 9 is further provided on the bottom surface of the rolling eye chart 1; specifically, in the present embodiment, the storage box 9 is fixed to the bottom of the rolling eye chart 1 by a bolt structure, so as to hold the rolling eye chart 1 which droops after the adjustment mechanism 5 is pulled down according to the needs of different patients.

[0043] Preferably, in the present embodiment, light source components are evenly arranged on the wall on the back of the rolling eye chart 1 , so that the patient can observe the rolling eye chart 1 more clearly.

[0044] Preferably, in this embodiment, the order of styles of the scrolling eye chart 1 is: C-chart, graphic chart, E-chart; in other embodiments, the styles of the scrolling eye chart 1 can be increased and arranged and combined according to actual needs.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable eye chart, characterized in that: include: Rolling eye chart (1), slide rail (2); The rolling eye chart (1) has a double-layer structure and is arranged to be rolled so that one of a C-chart, a graphic chart, and an E-chart is displayed on the outer side surface; The sliding rail (2) is also arranged on the back of the rolling eye chart (1), and the rolling eye chart (1) can be movably arranged on the wall through the sliding rail (2), and the sliding rail (2) is arranged vertically along the height direction.

2. The adjustable eye chart according to claim 1, characterized in that: The specific number of the slide rails (2) is two, which are arranged parallel to each other on both sides of the back side of the rolling eye chart (1).

3. The adjustable eye chart according to claim 2, characterized in that: The slide rail (2) is also provided with a fixing device (3) for fixing and locking the rolling eye chart (1) in the height direction. The fixing device (3) enables the rolling eye chart (1) to maintain a movable or fixed state with the wall.

4. The adjustable eye chart according to claim 3, characterized in that: The specific structure of the fixing device (3) is a bolt fastening structure. The slide rail (2) is provided with a plurality of bolt holes, and the bolts are fastened to the rolling eye chart (1) through the bolt holes.

5. The adjustable eye chart according to claim 1, characterized in that: The specific structure of the rolling eye chart (1) further includes: a rolling reel (4), an adjustment mechanism, a tail plug (6), and a sealing head (7); The scrolling reel (4) is arranged on the top of the scrolling eye chart (1) to drive the eye chart to scroll and display; The adjusting mechanism and the tail plug (6) are respectively arranged on two sides of the top of the rolling eye chart (1); Sealing heads (7) are arranged on both sides of the bottom of the rolling eye chart (1).

6. The adjustable eye chart according to claim 5, characterized in that: The adjustment mechanism is specifically a bead structure, which adjusts the rolling degree of the rolling eye chart (1).

7. The adjustable eye chart according to claim 6, characterized in that: A mirror structure (8) is also provided on the side of the rolling eye chart (1).

8. The adjustable eye chart according to claim 7, characterized in that: A storage box (9) is also provided on the bottom surface of the rolling eye chart (1).

9. The adjustable eye chart according to claim 8, characterized in that: Light source components are evenly arranged on the wall behind the rolling eye chart (1).

10. The adjustable eye chart according to any one of claims 1 to 9, characterized in that: The order of styles of the scrolling eye chart (1) is: C-chart, graphic chart, E-chart.

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