A multifunctional eye chart

Abstract

This utility model belongs to the technical field of vision testing equipment, and particularly relates to a multifunctional vision chart, including a protective cover with a vision screen for testing embedded within it. The bottom of the protective cover also has a multifunctional storage device, and one end of the protective cover has a power supply device for powering the vision screen. A back panel is also provided on one side of the protective cover. The multifunctional device includes a multifunctional base, and a storage box is slidably connected to the base. A sealed lid is fixedly installed at one end of the storage box, which also has a square storage slot for storing items and a ring-shaped storage slot for holding vision bars. This multifunctional vision chart, by removing the storage box from the multifunctional base and utilizing the square storage slot, ring-shaped storage slot, arc-shaped clip, and lens holder to store vision testing-related items, achieves categorized and stable storage of items, facilitating quick retrieval of necessary items during vision testing.

Description

Technical Field

[0001] This utility model relates to the field of vision testing equipment technology, and in particular to a multifunctional vision chart. Background Technology

[0002] Eye charts are tools used to test vision and are widely used in hospitals, schools, medical examination centers and other places. Traditional eye charts are usually made of paper or plastic and are directly pasted on the wall or placed on a table for use. Lightbox eye charts, on the other hand, stick the eye chart to a light box, thereby increasing the lifespan of the eye chart. Although this simple structure is cheaper, it is more inconvenient to use.

[0003] Traditional lightbox-style eye charts lack storage space. When conducting vision tests, medical staff or users need to retrieve eye chart-related items, such as eye sticks, from elsewhere. This not only increases the cumbersomeness of the operation but may also lead to the loss or omission of items. In addition, the power supply of traditional eye charts is usually connected to a plug via a power cord, which limits the location of use of the eye chart, making it inconvenient to move and carry, thus affecting its flexibility and applicability. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a multifunctional vision chart to solve the technical problems of the current traditional lightbox vision chart, which is cumbersome to operate, easy to lose items and inconvenient to move due to the lack of storage space and the reliance on power cords, thus limiting its flexibility and applicability.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A multifunctional eye chart includes a protective cover, in which a vision screen for testing vision is embedded. The bottom of the protective cover is also provided with a multifunctional device for storage, and a power supply device for powering the vision screen is provided at one end of the protective cover near the vision screen. A back panel for hanging is also provided on one side of the protective cover.

[0008] The multifunctional device includes a multifunctional base fixedly installed on the protective cover near the power supply device, and the multifunctional base near the power supply device has a second slot and the multifunctional base away from the second slot has a third slot.

[0009] The multifunctional base also has a slidably connected storage box. The end of the storage box extending outside the multifunctional base is fixedly fitted with a sealed cover corresponding to the third slot. The storage box also has a square storage slot for storing items and a ring-shaped storage slot for accommodating vision bars.

[0010] As an improved technical solution, the storage box is also provided with symmetrically distributed arc-shaped clips for storing lenses, and a cross-shaped lens holder is fixedly installed at one end of the arc-shaped clips extending into the storage box.

[0011] As an improved technical solution, the inner side of the multifunctional base is also provided with a slot, and a thermometer and hygrometer adapted to the slot and used for monitoring temperature and humidity are installed in the multifunctional base.

[0012] As an improved technical solution, the protective cover has a battery slot at one end near the multi-functional base, and a first slot corresponding to the second slot is also provided on the protective cover. The protective cover has reinforcing ribs distributed along the outline of the protective cover on one side near the back plate, and mounting holes are arranged in the reinforcing ribs.

[0013] As an improved technical solution, the power supply device includes a power supply body connected to the electrical signal of the vision screen, the outside of the power supply body is covered with a power supply housing adapted to the battery slot, and the power supply body is slidably connected to the battery slot through the power supply housing.

[0014] As an improved technical solution, a locking block adapted to the first slot is fixedly installed at one end of the power supply housing that protrudes from the protective cover.

[0015] As an improved technical solution, the inner side of the back plate is provided with through holes corresponding to the assembly holes, and the through holes are arranged and distributed along the outline of the back plate.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] 1. This utility model, by pulling out the storage box from the multi-functional base, and using square storage slots, ring-shaped storage slots, arc-shaped clips and lens holders to store vision testing-related items, achieves classified and stable storage of items. At the same time, the sealed box lid prevents items from being lost or getting damp, improving the practicality and convenience of the vision chart, and making it convenient for users to quickly retrieve the required items when conducting vision tests.

[0018] 2. This utility model achieves a firm fixation of the power supply body and a stable power transmission to the vision screen by inserting the power supply housing into the battery slot and using a locking block to complete the engagement with the first slot. This ensures that the vision chart can continuously and stably display the vision test pattern during use, thereby improving the reliability of vision testing.

[0019] 3. This utility model uses a thermometer and hygrometer to monitor the ambient temperature and humidity in real time, enabling real-time monitoring of the testing environment and ensuring that the testing environment meets the requirements. This improves the accuracy and effectiveness of vision testing and provides users with more scientific testing conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a three-dimensional structural diagram of the multifunctional vision chart of this utility model;

[0022] Figure 2 This is a schematic diagram of the unfolded structure of the multifunctional vision chart of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the multifunctional base and storage box of this utility model.

[0024] Figure 4 This is a schematic diagram of the storage box structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the power supply replacement status of this utility model.

[0026] Figure 6 For the present utility model Figure 5 A magnified structural diagram of part A;

[0027] Figure 7 This is a schematic diagram of the installation of the protective cover and the multi-functional base in Embodiment 2 of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Protective cover; 101. Battery slot; 102. First slot; 103. Reinforcing rib; 104. Assembly hole; 2. Vision screen; 3. Multifunctional device; 301. Multifunctional base; 3011. Second slot; 3012. Third slot; 3013. Slot; 304. Thermometer and hygrometer; 302. Storage box; 3021. Sealed lid; 3032. Square storage slot; 3023. Ring-shaped storage slot; 3024. Arc-shaped clip; 3025. Lens holder; 303. Vision bar; 4. Power supply device; 401. Power supply body; 402. Power supply housing; 403. Locking block; 5. Back panel; 501. Through hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0033] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] This invention discloses a multifunctional vision chart.

[0035] Example 1

[0036] like Figures 1 to 6As shown in the figure, this embodiment provides a multifunctional eye chart, which includes a protective cover 1. A vision screen 2 for testing vision is embedded in the protective cover 1. A multifunctional storage device 3 is also provided at the bottom of the protective cover 1. A power supply device 4 for powering the vision screen 2 is provided at one end of the protective cover 1 near the protective cover 1. A back panel 5 for hanging is also provided on one side of the protective cover 1. The multifunctional device 3 includes a multifunctional base 301 fixedly installed at one end of the protective cover 1 near the power supply device 4. A second slot 3011 is provided at one end of the multifunctional base 301 near the power supply device 4, and a third slot 3012 is provided at one end of the multifunctional base 301 away from the second slot 3011. A storage box 302 is slidably connected to the multifunctional base 301. A sealed cover 3021 corresponding to the third slot 3012 is fixedly installed at one end of the storage box 302 extending outside the multifunctional base 301. It also includes a square storage slot 3032 for storage and a ring-shaped storage slot 3023 for holding vision bars 303. The protective cover 1 serves as the outer shell of the entire eye chart, protecting the internal components. The protective cover 1 is made of sturdy materials to ensure that the eye chart is not easily damaged during use. The vision screen 2 is embedded in the protective cover 1 and is used to display vision test patterns. It is an LED electronic screen and can display different vision test patterns as needed. The back plate 5 is installed on one side of the protective cover 1 to facilitate the hanging and fixing of the eye chart. The multi-functional base 301 is used to fix the storage box 302 and the sealed lid 3021. The storage box 302 can be pulled out from the multi-functional base 301 to store vision test-related items. The square storage slot 3032 and the ring-shaped storage slot 3023 are used to store items of different shapes, such as recording paper and vision bars 303, respectively. The sealed lid 3021 prevents items from being lost or getting damp.

[0037] The storage box 302 is also provided with symmetrically distributed arc-shaped clips 3024 for storing lenses, and a cross-shaped lens holder 3025 is fixedly installed at one end of the arc-shaped clips 3024 extending into the storage box 302. The lenses are stably stored through the cooperation between the arc-shaped clips 3024 and the lens holder 3025.

[0038] The multi-functional base 301 also has a slot 3013 on its inner side. A thermometer and hygrometer 304 that is compatible with the slot 3013 and used to monitor temperature and humidity is installed in the multi-functional base 301. The thermometer and hygrometer 304 is used to monitor the temperature and humidity around the eye chart to ensure that the testing environment meets the requirements.

[0039] A battery slot 101 is provided at one end of the protective cover 1 near the multi-functional base 301. A first slot 102 corresponding to the second slot 3011 is also provided on the protective cover 1. A reinforcing rib 103 distributed along the outline of the protective cover 1 is provided on the side of the protective cover 1 near the back plate 5. Mounting holes 104 are arranged in the reinforcing rib 103. The reinforcing rib 103 is used to enhance the structural strength of the protective cover 1 and ensure that the eye chart is not easily damaged during use.

[0040] The power supply device 4 includes a power supply body 401 that is electrically connected to the vision screen 2. The power supply body 401 is covered with a power supply housing 402 that is adapted to the battery compartment 101. The power supply body 401 is slidably connected to the battery compartment 101 through the power supply housing 402. The power supply body 401 is a removable rechargeable battery to ensure that the use of the vision chart is not limited by the power cord. The power supply housing 402 plays a protective role. The power supply housing 402 is slidably connected to the battery compartment 101 of the protective cover 1 to ensure the stable installation of the power supply body 401. After docking, the power of the power supply body 401 is transmitted to the vision screen 2 through its own poles.

[0041] The power supply housing 402 has a locking block 403 that is compatible with the first slot 102 fixedly installed at one end protruding from the protective cover 1. The locking block 403 engages with the first slot 102 to ensure the power supply body 401 is firmly fixed.

[0042] The inner side of the back plate 5 is provided with through holes 501 corresponding to the mounting holes 104, and the through holes 501 are arranged along the outline of the back plate 5. The through holes 501 on the back plate 5 can be used to fix the eye chart to the wall or other support through screws or hooks and the mounting holes 104.

[0043] In use, place the protective cover 1 in a suitable position. Secure the eye chart to a wall or other support using screws or hooks through the through-hole 501 on the back plate 5 and the mounting hole 104 on the protective cover 1. Insert the power housing 402 of the internal power supply unit 401 into the battery slot 101 of the protective cover 1, and engage it with the first slot 102 via the locking block 403 to ensure a secure fixation of the power supply unit 401. After docking, the power supply unit 401 transmits power to the eye chart 2 through its own terminals. The eye chart 2 displays vision test patterns, and the user performs vision tests according to the instructions. The eye chart 2 can display different vision test patterns as needed, such as the standard "E" chart, digital eye chart, etc.

[0044] During the testing process, the thermometer and hygrometer 304 monitors the ambient temperature and humidity in real time to ensure that the testing environment meets the requirements. By pulling the storage box 302 out of the multi-functional base 301, the recording paper, pen, lens and other vision testing related items are stored in the storage box 302. The square storage slot 3032 and the ring storage slot 3023 store items of different shapes and vision bars 303 required for vision testing, ensuring the stable storage of items. The curved clip 3024 and the lens holder 3025 are used to stably store the lenses. After storage is completed, the storage box 302 is sealed with the airtight lid 3021 to prevent items from being lost or getting damp.

[0045] It is worth noting that the power supply device 4 in this solution is designed with reference to the working principle of a power bank, ensuring that the vision chart can operate stably and reliably, while also being portable and easy to use. The battery slot 101, similar to the battery compartment of a power bank, is used to fix and accommodate the power supply body 401. The battery slot 101 is designed with electrode contacts that are compatible with the electrode contacts of the power supply body 401, ensuring that the power supply body 401 can stably supply power to the vision screen 2. The specific detailed circuit layout is based on existing technology and will not be elaborated further.

[0046] Example 2

[0047] Reference Figure 7 In another embodiment of the present invention, a multifunctional vision chart is provided. This embodiment differs from embodiment 1 in that the multifunctional device 3 includes a multifunctional base 301 that is integrally formed with the protective cover 1 and has triangular reinforcing ribs at the connection. The rest of the structure is the same as that in embodiment 1, and the four corners of the multifunctional base 301 are all rounded.

[0048] When in use, the storage box 302 is pulled out from the multi-functional base 301, and the recording paper, pen, lens and other vision testing related items are stored in the storage box 302. The one-piece molding design makes it less likely for the connection between the structures to loosen when the device is suspended for a long time, thereby extending the service life of the device. The rounded corner design makes the device look smoother and more beautiful, while also reducing sharp edges, thereby reducing the risk of injury and improving safety.

[0049] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A multi-functional chart for testing visual acuity, characterized by: The protective cover (1) includes a vision screen (2) for testing vision, and a multi-functional device (3) for storage is provided at the bottom of the protective cover (1). A power supply device (4) for powering the vision screen (2) is provided at one end of the protective cover (1) near the vision screen (2). A back panel (5) for hanging is also provided on one side of the protective cover (1). The multifunctional device (3) includes a multifunctional base (301) fixedly installed on the protective cover (1) near the power supply device (4), and the multifunctional base (301) near the power supply device (4) has a second slot (3011) and the multifunctional base (301) away from the second slot (3011) has a third slot (3012). The multifunctional base (301) is also slidably connected to a storage box (302). The storage box (302) is fixedly installed with a sealed cover (3021) corresponding to the third slot (3012) at one end extending outside the multifunctional base (301). The storage box (302) is also provided with a square storage slot (3032) for storing items and a ring-shaped storage slot (3023) for accommodating vision bars (303).

2. The multi-functional chart according to claim 1, wherein: The storage box (302) is also provided with symmetrically distributed arc-shaped clips (3024) for storing lenses, and a cross-shaped lens holder (3025) is fixedly installed at one end of the arc-shaped clips (3024) extending into the storage box (302).

3. The multi-functional chart according to claim 2, wherein: The multifunctional base (301) also has a slot (3013) on its inner side, and a thermometer (304) that is compatible with the slot (3013) and used to monitor temperature and humidity is installed in the multifunctional base (301).

4. The multi-functional chart according to claim 3, wherein: The protective cover (1) has a battery slot (101) at one end near the multi-functional base (301). The protective cover (1) also has a first slot (102) corresponding to the second slot (3011). The protective cover (1) has a reinforcing rib (103) distributed along the outline of the protective cover (1) on one side near the back plate (5). The reinforcing rib (103) has mounting holes (104) arranged in the reinforcing rib (103).

5. The multi-functional chart according to claim 4, wherein: The power supply device (4) includes a power supply body (401) that is electrically connected to the vision screen (2). The power supply body (401) is covered with a power supply housing (402) that is adapted to the battery compartment (101), and the power supply body (401) is slidably connected to the battery compartment (101) through the power supply housing (402).

6. The multi-functional chart according to claim 5, wherein: The power supply housing (402) has a card block (403) that is adapted to the first card slot (102) fixedly installed at one end of the protective cover (1).

7. The multi-functional chart according to claim 1, wherein: The back plate (5) has through holes (501) on its inner side that correspond to the assembly holes (104), and the through holes (501) are arranged along the outline of the back plate (5).

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