A self-service visual detection device

Abstract

The utility model relates to visual detection technical field, concretely relates to a self -service visual detection equipment, including base, dismounting subassembly, dismounting subassembly installs in the side of adjusting lever, and dismounting subassembly is used for dismounting eye -shade board, fixed component, fixed component installs in the inside of operation platform, and fixed component is used for fixing projector. Compared with the prior art, the application realizes the quick installation and dismounting of eye -shade board through the dismounting subassembly, and the user can easily complete the operation without the aid of tools, and the design of reset spring ensures the stability and reliability of the eye -shade board, the quick installation and dismounting of projector are realized through the fixed component, the cooperation of lock tooth and limiting rod ensures the firm fixing of projector, avoids the displacement or loosening in the equipment operation, the design of pressure spring makes the locking process automation, simplifies the operation procedure, improves the stability and service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of vision testing technology, and in particular to a self-service vision testing device. Background Technology

[0002] Vision testing is an important means of assessing eye health and is widely used in homes, clinics, and medical institutions. Traditional vision testing equipment typically consists of two parts: an eye occluder and a visual acuity chart. The eye occluder is usually handheld, requiring the user to hold it with one hand to cover one eye while using the other to observe the chart. This design has significant drawbacks: First, holding the eye occluder is not only inconvenient but also prone to causing blurred vision in the covered eye due to excessive force, affecting the accuracy of the test results. Second, traditional visual acuity charts are mostly fixed light boxes, which are bulky and inconvenient to move, making them difficult to meet the needs of patients with limited mobility or families.

[0003] In the prior art, Chinese patent document CN221129850U, concerning a self-service vision testing device, proposes a structure that integrates a base, an adjustable-height support frame, an eye patch, and a projector. This structure enables the installation of the eye patch and the electronic projection of the vision chart, solving the problems of inconvenience in holding the eye patch and the excessive size of traditional light boxes. However, this device still has the following shortcomings: First, the installation method of the eye patch and projector is relatively fixed, lacking modular design, which leads to inconvenience in subsequent maintenance and upgrades; second, the structural design of the device does not fully consider the ease of user operation and the flexibility of maintenance, making it difficult to meet the needs of non-professional environments such as homes or small clinics.

[0004] Therefore, there is an urgent need for a self-service vision testing device that is simple in structure, easy to operate, and easy to maintain. It should enable the rapid installation and disassembly of key components through modular design, while also possessing high adjustability and stability to meet the needs of different users and improve the user experience. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a self-service vision testing device to solve the problems of difficult equipment maintenance and lack of modular design in the prior art.

[0006] To achieve the above objectives, this utility model provides a self-service vision testing device, comprising: a base, a base rod installed on one side of the base, an adjustment rod installed on the side of the base rod away from the base, an eye shield installed on the side of the adjustment rod away from the base rod, a horizontal rod installed on one side of the adjustment rod, a sliding rod installed on the horizontal rod, an operating platform installed on one side of the sliding rod, and a projector installed on one side of the operating platform;

[0007] A disassembly assembly is installed between the adjusting rod and the eye shield, and the disassembly assembly is used to disassemble the eye shield;

[0008] A fixing component is installed inside the operating platform and is used to fix the projector.

[0009] Preferably, the disassembly assembly includes a fixed base fixedly installed on one side of the adjusting rod, a connecting rod fixedly installed on the side of the eye shield near the adjusting rod, and first locking rods fixedly installed on both symmetrical sides of the connecting rod, the first locking rods being movably installed inside the fixed base.

[0010] Preferably, a mating cover is fixedly installed on the side of the fixed base away from the adjusting rod, and a locking hole is opened in the middle of the mating cover. The locking hole passes through the mating cover and communicates with the interior of the fixed base.

[0011] Preferably, a fixing cover is fixedly installed on the outside of the connecting rod, a locking sleeve is fixedly installed on the side of the fixing cover near the adjusting rod, a return spring is fixedly installed on the side of the fixing cover near the adjusting rod, and the end of the return spring away from the fixing cover is fixedly installed on the side of the locking sleeve.

[0012] Preferably, the bottom end of the connecting rod passes through the fixing cover and the locking sleeve and extends into the fixing base, and the first locking rod is installed on the side away from the locking sleeve.

[0013] Preferably, the fixing component includes a connecting slot formed inside the operating platform, and a projector is movably installed in the connecting slot.

[0014] Preferably, a connecting base is fixedly installed on the side of the projector near the operating platform. The connecting base has an installation groove, and two fixing blocks are fixedly installed in the installation groove. The two fixing blocks are arranged opposite to each other. A limit rod is fixedly installed on the side of the fixing block away from the projector, and the other end of the limit rod is fixedly installed on one side of the installation groove.

[0015] Preferably, the operating platform has through holes on both symmetrical sides, a second locking rod is slidably installed in the through holes, a pressure spring is fixedly installed on one side of the second locking rod, the side of the pressure spring away from the second locking rod is fixedly installed on one side of the connecting groove, a locking tooth is fixedly installed on the other side of the second locking rod, and a slider is fixedly installed on one side of the second locking rod.

[0016] Preferably, a sliding groove is provided in the connecting groove, and the slider is slidably installed in the sliding groove.

[0017] Preferably, one side of the locking tooth is protruding, and the locking tooth is adapted to the limiting rod.

[0018] The beneficial effects of this utility model are:

[0019] 1. This self-service vision testing device features a detachable assembly that enables rapid installation and removal of the eye occluder, significantly improving maintenance convenience and operational efficiency. The detachable assembly, through the cooperation of a first locking rod, a mating cover, and a return spring, makes the installation and removal of the eye occluder simple and quick, requiring no additional tools. Users simply rotate the connecting rod to complete the operation. The return spring ensures a tight connection between the first locking rod and the mating cover, preventing loosening that could affect the device's stability during use. Furthermore, the detachable design of the eye occluder reflects the device's modularity, allowing users to flexibly adjust and maintain it according to their needs. It also simplifies the inspection and cleaning process, making it suitable for self-service vision testing in various scenarios such as homes and clinics, providing users with an efficient and convenient operating experience.

[0020] 2. This self-service vision testing device, with its fixed components, enables rapid installation and removal of the projector, significantly improving maintenance convenience and operational stability. The fixed components, through the cooperation of a second locking lever, locking teeth, and pressure springs, make projector installation and removal simple and quick. Users only need to push the second locking lever to complete the operation, without the need for additional tools. The locking teeth and the protruding structure of the limiting rod ensure a secure fixation of the projector after installation, preventing displacement or loosening due to vibration or external interference during operation. The pressure spring allows the second locking lever to automatically reset, simplifying the operation process and increasing the automation of the locking process. Furthermore, the reasonable structural design of the fixed components allows for repeated use without wear, improving the device's lifespan and overall reliability. This greatly facilitates subsequent maintenance and repair work for operators, making it suitable for self-service vision testing needs in various scenarios such as homes and clinics. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the disassembly structure of the disassembly components of this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of the fixing component of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the operating platform of this utility model.

[0026] The diagram is marked as follows:

[0027] 1. Base; 2. Base rod; 3. Adjusting rod; 4. Eye shield; 5. Horizontal rod; 6. Sliding rod; 7. Operating platform; 8. Projector; 9. Connecting rod; 10. First locking rod; 11. Locking sleeve; 12. Return spring; 13. Fixing cover; 14. Mating cover; 15. Lock hole; 16. Fixing seat; 17. Connecting groove; 18. Sliding groove; 19. Through hole; 20. Second locking rod; 21. Locking tooth; 22. Pressure spring; 23. Sliding block; 24. Fixing block; 25. Limiting rod; 26. Mounting groove; 27. Connecting seat. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] like Figures 1 to 4As shown, the self-service vision testing device includes: a base 1, a base rod 2 mounted on one side of the base 1, an adjustment rod 3 mounted on the side of the base rod 2 away from the base 1, an eye shield 4 mounted on the side of the adjustment rod 3 away from the base rod 2, a horizontal rod 5 mounted on one side of the adjustment rod 3, a sliding rod 6 mounted on the horizontal rod 5, an operating platform 7 mounted on one side of the sliding rod 6, and a projector 8 mounted on one side of the operating platform 7; a disassembly assembly installed between the adjustment rod 3 and the eye shield 4, used to disassemble the eye shield 4; and a fixing assembly installed inside the operating platform 7, used to fix the projector 8.

[0031] This self-service vision testing device operates on a modular principle. By modularizing the main functional components, it enables convenient installation, disassembly, maintenance, and upgrades. Specifically, the device includes core components such as a base 1, a base rod 2, an adjustment rod 3, an eye occluder 4, a horizontal rod 5, a sliding rod 6, an operating platform 7, and a projector 8. The eye occluder 4 and projector 8 are detachable, allowing users to flexibly adjust and maintain them according to their needs. The eye occluder 4 is connected to the adjustment rod 3 via a detachable assembly, enabling users to quickly install and remove it with simple operations, thus facilitating device maintenance and cleaning. The projector 8 is mounted inside the operating platform 7 via a fixing assembly, ensuring stable operation of the projector 8. It also supports quick disassembly, facilitating equipment upgrades and maintenance. When the device is in operation, users can adjust the height of the eye-covering plate 4 using the adjustment lever 3 to accommodate different user heights and testing needs. At the same time, the horizontal position of the operating platform 7 can be adjusted using the sliding lever 6 to ensure that the projector 8 can accurately project the eye chart onto the testing area. The projector 8 projects the electronic eye chart onto a wall or screen. Users cover one eye with the eye-covering plate 4 and use the other eye to observe the eye chart for vision testing. The entire device fully considers the ease of user operation and the maintainability of the device. Through modular design and detachable structure, it significantly improves the efficiency of use and the convenience of maintenance, making it suitable for self-service vision testing needs in various scenarios such as homes and clinics.

[0032] like Figure 1 , Figure 2As shown, the disassembly assembly includes a fixed base 16 fixedly installed on one side of the adjusting rod 3; a connecting rod 9 fixedly installed on the side of the eye shield 4 near the adjusting rod 3; first locking rods 10 fixedly installed on both sides of the connecting rod 9; the first locking rods 10 are movably installed inside the fixed base 16; a mating cover 14 is fixedly installed on the side of the fixed base 16 away from the adjusting rod 3; a locking hole 15 is opened in the middle of the mating cover 14; the locking hole 15 penetrates the mating cover 14 and communicates with the interior of the fixed base 16; a fixed cover 13 is fixedly installed on the outside of the connecting rod 9; a locking sleeve 11 is fixedly installed on the side of the fixed cover 13 near the adjusting rod 3; a return spring 12 is fixedly installed on the side of the fixed cover 13 near the adjusting rod 3; the end of the return spring 12 away from the fixed cover 13 is fixedly installed on the side of the locking sleeve 11; the bottom end of the connecting rod 9 penetrates the fixed cover 13 and the locking sleeve 11 and extends into the fixed base 16; the first locking rod 10 is installed on the side away from the locking sleeve 11.

[0033] When performing maintenance or installation of the eye shield 4, the first locking rod 10 must first be accurately aligned with the locking hole 15 on the mating cover 14. Then, the first locking rod 10 is smoothly pushed into the interior of the fixing seat 16. During this process, the first locking rod 10 moves smoothly along the preset track of the fixing seat 16 until it is fully inserted into and passes through the locking hole 15 of the mating cover 14. After the initial alignment is completed, the connecting rod 9 needs to be rotated so that the first locking rod 10 deflects at a certain angle inside the fixing seat 16, ensuring that the first locking rod 10 can be firmly locked between the fixing seat 16 and the mating cover 14, forming an effective locking mechanism. While the first locking rod 10 deflects, the return spring 12 plays its role. One end of the return spring 12 is fixed. The first locking rod 10 is fixed to the cover 13 at one end and connected to the locking sleeve 11 at the other end. This arrangement allows the return spring 12 to use its elasticity to firmly press the first locking rod 10 against one side of the mating cover 14 after the first locking rod 10 is deflected into place, thereby enhancing the stability and reliability of the locking. When disassembling, the user only needs to rotate the connecting rod 9 in the opposite direction to disengage the first locking rod 10 from the locked position of the mating cover 14, and the eye occluder 4 can be easily removed. This disassembly assembly realizes the quick installation and removal of the eye occluder 4 through its unique structural design and spring return mechanism, fully embodying the modular concept of the equipment and providing users with an efficient and convenient operating experience. It is suitable for self-service vision testing needs in various scenarios such as home and clinic.

[0034] like Figure 3 , Figure 4As shown, the fixing assembly includes a connecting groove 17 formed inside the operating platform 7, in which a projector 8 is movably mounted; a connecting base 27 is fixedly mounted on the side of the projector 8 closest to the operating platform 7, and a mounting groove 26 is formed in the connecting base 27. Two fixing blocks 24 are fixedly mounted in the mounting groove 26, and the two fixing blocks 24 are arranged opposite each other. A limit rod 25 is fixedly mounted on the side of the fixing block 24 away from the projector 8, and the other end of the limit rod 25 is fixedly mounted on one side of the mounting groove 26; the symmetrical two sides of the operating platform 7 Each side has a through hole 19, and a second locking rod 20 is slidably installed in the through hole 19. A pressure spring 22 is fixedly installed on one side of the second locking rod 20, and the side of the pressure spring 22 away from the second locking rod 20 is fixedly installed on one side of the connecting groove 17. A locking tooth 21 is fixedly installed on the other side of the second locking rod 20, and a slider 23 is fixedly installed on one side of the second locking rod 20. A sliding groove 18 is opened in the connecting groove 17, and the slider 23 is slidably installed in the sliding groove 18. One side of the locking tooth 21 is protruding, and the locking tooth 21 is adapted to the limiting rod 25.

[0035] When the projector 8 needs to be installed or repaired, the operator first pushes the second locking rod 20 in the through holes 19 on both sides of the operating platform 7 inward simultaneously, so that the locking teeth 21 on the second locking rod 20 enter the middle position of the connecting groove 17. At this time, the locking teeth 21 are not in contact with the limiting rod 25 and are in the release preparation stage. Then, the operator pushes the projector 8 together with the connecting seat 27 fixedly installed below it along the direction of the connecting groove 17, aligning the mounting groove 26 with the connecting groove 17. When the bottom of the connecting seat 27 contacts the surface of the operating platform 7, the operator releases the second locking rod 20. At this time, under the elastic force of the pressure spring 22, the second locking rod 20 automatically resets. During the reset movement, the locking teeth 21 gradually contact the limiting rod 25, and during the contact process, the protruding structure of the locking teeth 21 and the cooperation of the limiting rod 25 achieve smooth sliding and locking. The limiting rod 25 is firmly locked in place, forming a reliable positioning and fixing structure. During this process, the slider 23 slides smoothly within the slide groove 18, ensuring the stability of the sliding of the second locking rod 20. Through this structure, the projector 8 can be quickly installed or disassembled without the use of tools, greatly simplifying the operation process. At the same time, the precise cooperation between the locking teeth 21 and the limiting rod 25 ensures that the projector 8 will not be displaced or loosened due to vibration or external force interference during operation, ensuring operational stability and safety during use. In addition, the fixing component has a reasonable structure and is easy to operate. The cooperation between the second locking rod 20 and the pressure spring 22 not only improves the automation of the locking process, but also enables repeated use without wear, improving the service life and overall reliability of the equipment, and bringing great convenience to the operator's later maintenance and repair work.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-service vision testing device, characterized in that, Includes a base (1), on which a base rod (2) is installed, an adjusting rod (3) is installed on the side of the base rod (2) away from the base (1), an eye shield (4) is installed on the side of the adjusting rod (3) away from the base rod (2), a horizontal rod (5) is installed on one side of the adjusting rod (3), a sliding rod (6) is installed on the horizontal rod (5), an operating platform (7) is installed on one side of the sliding rod (6), and a projector (8) is installed on the operating platform (7). A disassembly assembly is provided between the adjusting rod (3) and the eye shield (4). The disassembly assembly includes a fixing seat (16) fixedly installed on one side of the adjusting rod (3) and a connecting rod (9) fixedly installed on the side of the eye shield (4) near the adjusting rod (3). First locking rods (10) are fixedly installed on both sides of the connecting rod (9). A mating cover (14) is fixedly installed on the side of the fixing seat (16) away from the adjusting rod (3). A locking hole (15) is opened in the middle of the mating cover (14) and communicates with the interior of the fixing seat (16). A fixing cover (13) is fixedly installed on the outside of the connecting rod (9). The fixing cover (13) is located on the side of the adjusting rod (3). A locking sleeve (11) and a return spring (12) are fixedly installed. The end of the return spring (12) away from the fixed cover (13) is fixedly installed on one side of the locking sleeve (11). The bottom end of the connecting rod (9) passes through the fixed cover (13) and the locking sleeve (11) and extends into the fixed seat (16). The first locking rod (10) is located at the end of the connecting rod (9) away from the locking sleeve (11). The first locking rod (10) can pass through the lock hole (15) and, after the connecting rod (9) is rotated, it is misaligned with the lock hole (15) and locked between the fixed seat (16) and the mating cover (14). The return spring (12) is used to make the first locking rod (10) abut against the mating cover (14). A fixing assembly is provided between the operating platform (7) and the projector (8). The fixing assembly includes a connecting groove (17) opened inside the operating platform (7) and a connecting seat (27) fixedly installed on the side of the projector (8) near the operating platform (7). The connecting seat (27) is movably installed in the connecting groove (17). An installation groove (26) is opened in the connecting seat (27). Two opposing fixing blocks (24) are fixedly installed in the installation groove (26). A limit rod (25) is fixedly installed on the side of each fixing block (24) away from the projector (8). The other end of the limit rod (25) is fixedly installed on one side of the installation groove (26). The operating platform (7) has openings on both symmetrical sides. A through hole (19) is provided, and a second locking rod (20) is slidably installed in each through hole (19). A pressure spring (22) is fixedly installed at one end of the second locking rod (20). The end of the pressure spring (22) away from the second locking rod (20) is fixedly installed on one side of the connecting groove (17). A locking tooth (21) is fixedly installed at the other end of the second locking rod (20). A slider (23) is fixedly installed on the second locking rod (20). A sliding groove (18) for the slider (23) to slide is opened in the connecting groove (17). One side of the locking tooth (21) is protruding and adapted to the limiting rod (25) so that it can engage the limiting rod (25) when the second locking rod (20) is reset by the pressure spring (22).

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