Quickly replaceable detection table for vision detection

Abstract

The utility model discloses a rapid replaceable detection meter for vision detection, which comprises a bottom plate, a detection frame arranged above the bottom plate, a detection groove arranged in the middle of the detection frame and an adjusting column, the adjusting column is fixedly connected to the lower end of the detection frame, and the adjusting column is slidably connected to the middle of a fixing plate. An adjusting column is arranged on the bottom plate, the adjusting column drives the detection frame to form a lifting structure above the bottom plate, and the clamping mechanism is arranged at the upper end of the detection frame and used for clamping and fixing the visual chart. According to the quick-replaceable detection meter for vision detection, a detected visual chart can be conveniently fixed and quickly detached and replaced, use is very convenient, and the detection frame is driven to ascend and descend through up-down sliding between the adjusting column and the fixing plate, so that the detection efficiency is improved. Therefore, the visual chart is convenient to use, and the detection height can be correspondingly adjusted according to the height of a detected person, so that a better detection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to vision detection, in particular to a quickly replaceable detection table for vision detection. Background Art

[0002] Vision testing refers to a method of testing vision, which is mostly divided into two types: measuring vision chart testing and machine measurement. Especially now that electronic products are becoming more and more popular and used, children's vision is receiving more and more attention. In the process of testing children's vision, vision test charts are usually needed;

[0003] With reference to Chinese patent authorization announcement number CN209421905U, the authorization announcement date is 2019.09.24, which discloses a vision chart for vision testing, including a support rod, a fixed column is fixedly connected to one side of the top of the support rod, one end of the fixed column is inserted into the inside of the bearing, a turntable is installed on one side of the bearing, a stainless steel plate is fixedly connected to one side of the turntable, a magnet is magnetically connected to one side of the stainless steel plate, a sight mark E is magnetically connected to one side of the magnet, a limit plate is fixedly connected to the middle of the limit rod, a spring is provided on one side of the limit plate, and the spring is sleeved on the outside of the limit rod, one end of the limit rod is movably inserted into the inside of the groove, and the groove is located on the other side of the turntable. The utility model changes the traditional way of hanging the vision chart on the wall, and the sight mark E is adsorbed on the stainless steel plate by a magnet. The direction of the opening of the sight mark E can be adjusted at will to prevent the vision chart from being read by the tester, thereby improving the accuracy of side vision;

[0004] However, the prior art has the problem that it is inconvenient to disassemble and replace the eye chart, and the use and detection height of the eye chart are mostly fixed, which makes it inconvenient to adjust the height of the detection chart according to the height difference of the detected person. For example, the comparative patents listed above have this problem.

[0005] Therefore, we propose a quickly replaceable test table for vision testing to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a quickly replaceable test chart for vision testing, so as to solve the problems in the prior art proposed in the above-mentioned background technology that it is inconvenient to disassemble and replace the vision chart, and the use and testing height of the vision chart are mostly fixed, making it inconvenient to adjust the height of the test chart accordingly according to the height difference of the person being tested.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quickly replaceable test table for vision testing, comprising a bottom plate, a test frame arranged above the bottom plate, and a test slot opened in the middle of the test frame;

[0008] Also includes:

[0009] An adjusting column, wherein the adjusting column is fixedly connected to the lower end of the detection frame, and the adjusting column is slidably connected to the middle part of the fixed plate, and the adjusting column drives the detection frame to form a lifting structure above the bottom plate;

[0010] The clamping mechanism is arranged at the upper end of the detection frame, and the clamping mechanism is used to clamp and fix the eye chart, and the clamping mechanism drives the eye chart to form a disassembly structure at the upper end of the detection frame.

[0011] Preferably, a fixing column is fixedly connected to the upper end of the base plate, and a fixing plate is fixedly connected to the upper end of the fixing column, and fixing grooves are provided at equal intervals in the middle of the fixing column.

[0012] Preferably, an up-and-down sliding structure is formed between the fixed column and the adjusting plate, and the upper end of the adjusting plate is fixedly connected to the adjusting column, and the left and right sides of the lower end of the adjusting column are fixedly connected to springs.

[0013] Preferably, the movable end of the spring is fixedly connected with a movable push plate, and the movable push plate is respectively sleeved on the left and right sides of the adjustment plate, and the front and rear ends of the adjustment plate are fixedly connected with fixed blocks.

[0014] Preferably, the fixed block is connected to the movable push plate by a card slot, and a fixing pin is fixedly connected to the upper end of the movable push plate, and the movable push plate drives the fixing pin to form a telescopic structure above the adjustment plate, and the fixing pin is card-connected in the fixing slot at the corresponding position.

[0015] Preferably, the clamping mechanism includes a connecting bolt for adjustment, a connecting bracket arranged in front of the connecting bolt, a fixing clamping block fixedly connected to the left and right ends of the connecting bracket, and a stabilizing block fixedly connected to the upper end of the fixing clamping block.

[0016] Preferably, a rotating structure is formed between the connecting bolt and the connecting bracket, and the connecting bolt drives the fixed clamp block through the connecting bracket to form a telescopic structure at the upper end of the detection frame, and the fixed clamp block drives the stabilizing block and the detection frame to form a forward and backward sliding structure.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the quickly replaceable test chart for vision testing is convenient for fixing and quickly disassembling and replacing the tested vision chart through the setting of the clamping mechanism, and is very convenient to use. Moreover, the test frame is driven to rise and fall by sliding up and down between the adjustment column and the fixing plate, so that the use of the vision chart and the test height can be adjusted accordingly according to the height of the person being tested, thereby achieving a better test effect. Moreover, the movable push plate is combined to drive the fixing pin to engage with the fixing groove at the corresponding position, so that it is convenient to fix it after the height adjustment is completed, thereby improving the stability during the test process.

[0018] 1. It is equipped with a fixed plate, an adjustment column and an adjustment plate. The fixed plate and the adjustment column slide to drive the detection frame to rise and fall, so as to facilitate the adjustment of the height of the eye chart. In addition, the adjustment plate and the fixed column slide to improve the stability during the lifting process.

[0019] 2. A movable push plate, a fixed block and a fixed pin are provided. The movable push plate and the fixed block slide left and right to drive the fixed pin to extend and retract, so that the fixed pin is engaged in the fixed groove at the corresponding position, thereby facilitating the position limiting between the adjustment plate and the fixed column;

[0020] 3. A clamping mechanism is provided, which includes a connecting bolt, a connecting bracket, a fixing clamp block and a stabilizing block. The setting of the clamping mechanism facilitates the stable clamping, disassembly and replacement of the eye chart, which solves the problem that the eye chart is easy to fall off when only fixed by magnets in many scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 This is a front view structural diagram of the connection between the fixed column, the fixed plate, the adjusting column and the adjusting plate of the utility model;

[0023] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 4 This is a front view structural diagram of the movable push plate, the fixed block and the fixed pin connection of the utility model;

[0025] Figure 5 This is a schematic diagram of the top view of the connection structure of the detection frame, detection slot, connection bolt and fixed clamp block of the utility model;

[0026] Figure 6 It is a rear view schematic diagram of the overall structure of the clamping mechanism of the utility model.

[0027] In the figure: 1. bottom plate; 2. fixed column; 3. fixed plate; 4. adjusting column; 5. adjusting plate; 6. spring; 7. movable push plate; 8. fixed block; 9. fixed pin; 10. fixed slot; 11. detection frame; 12. detection slot; 13. clamping mechanism; 14. connecting bolt; 15. connecting bracket; 16. fixed clamping block; 17. stabilizing block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a quickly replaceable test table for vision testing, including a base plate 1, a fixed column 2, a fixed plate 3, an adjustment column 4, an adjustment plate 5, a spring 6, a movable push plate 7, a fixed block 8, a fixed pin 9, a fixed groove 10, a test frame 11, a test groove 12, a clamping mechanism 13, a connecting bolt 14, a connecting bracket 15, a fixed clamping block 16 and a stabilizing block 17.

[0030] When using the quick-change test chart for vision testing, if Figure 1 , Figure 5 and Figure 6 As shown, firstly, the base plate 1 is placed at the corresponding position in the pediatric vision testing room, and the upper end of the base plate 1 is fixedly connected with a fixing column 2, and the upper end of the fixing column 2 is fixedly connected with a fixing plate 3, the middle of the fixing plate 3 is plugged with an adjustment column 4, and the detection frame 11 is fixedly connected to the upper end of the adjustment column 4, firstly, the vision chart for testing is placed in the middle of the detection slot 12, combined with the setting of the clamping mechanism 13, the clamping mechanism 13 includes a connecting bolt 14 for adjustment, a connecting bracket 15 arranged on the front side of the connecting bolt 14, a fixing clamping block 16 fixedly connected to the left and right ends of the connecting bracket 15, and a stabilizing block 17 fixedly connected to the upper end of the fixing clamping block 16;

[0031] By rotating the connecting bolt 14 threadedly connected to the rear side of the upper end of the detection frame 11, the connecting bolt 14 and the connecting bracket 15 are rotated, so that the connecting bracket 15 drives the fixed clamping block 16 to extend and retract, and the fixed clamping block 16 clamps and fixes the eye chart in the detection slot 12, and the fixed clamping block 16 drives the stabilizing block 17 and the detection frame 11 to slide, thereby improving the stability of the fixed clamping block 16 during the telescopic movement process. The fixed clamping block 16 clamps the eye chart, which is convenient for fixing, disassembling and replacing the eye chart. At the same time, the clamping stability is high, which solves the problem that the eye chart is easy to fall off when it is fixed only by this sticker in many scenarios;

[0032] After fixation, according to the height of the person being tested, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, by pulling the movable push plate 7, the movable push plate 7 slides with the fixed block 8, and the movable push plate 7 squeezes the spring 6, so that the spring 6 is elastically deformed. At this time, the movable push plate 7 drives the fixing pin 9 to extend and retract, and the fixing pin 9 is pulled out from the fixing groove 10, thereby releasing the limit between the adjustment plate 5 and the fixed column 2, and then by pulling the adjustment plate 5 up and down, the adjustment plate 5 slides with the fixed column 2, and the adjustment plate 5 drives the adjustment column 4 to slide with the fixed plate 3, so that the adjustment column 4 drives the detection frame 11 to rise and fall, thereby The eye chart can be used to adjust the height of the test so that the height of the eye chart is consistent with the eye height of the person being tested, which is more convenient for testing the vision of children. After the adjustment is completed, the movable push plate 7 is directly released. At this time, the spring 6 restores its elastic deformation, driving the movable push plate 7 to slide, so that the movable push plate 7 drives the fixing pin 9 to engage in the fixing groove 10 at the corresponding position, and then the adjustment plate 5 and the fixed column 2 can be limited, the detection frame 11 can be fixed, and then the vision of the person being tested can be tested through the fixed eye chart.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quickly replaceable test table for vision testing, comprising a base plate (1), a test frame (11) arranged above the base plate (1), and a test slot (12) opened in the middle of the test frame (11); It is characterized in that Also includes: An adjusting column (4), wherein the adjusting column (4) is fixedly connected to the lower end of the detection frame (11), and the adjusting column (4) is slidably connected to the middle part of the fixed plate (3), and the adjusting column (4) drives the detection frame (11) to form a lifting structure above the bottom plate (1); A clamping mechanism (13) is arranged at the upper end of the detection frame (11), and the clamping mechanism (13) is used to clamp and fix the eye chart, and the clamping mechanism (13) drives the eye chart to form a disassembly structure at the upper end of the detection frame (11).

2. A quickly replaceable test chart for vision testing according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixedly connected to a fixing column (2), the upper end of the fixing column (2) is fixedly connected to a fixing plate (3), and fixing grooves (10) are provided at equal intervals in the middle of the fixing column (2).

3. A quickly replaceable test chart for vision testing according to claim 2, characterized in that: An up-and-down sliding structure is formed between the fixed column (2) and the adjustment plate (5), the upper end of the adjustment plate (5) is fixedly connected to the adjustment column (4), and the left and right sides of the lower end of the adjustment column (4) are fixedly connected to springs (6).

4. A quickly replaceable test chart for vision testing according to claim 3, characterized in that: The movable end of the spring (6) is fixedly connected to a movable push plate (7), and the movable push plate (7) is respectively sleeved on the left and right sides of the adjustment plate (5), and the front and rear ends of the adjustment plate (5) are fixedly connected to fixed blocks (8).

5. A quickly replaceable test chart for vision testing according to claim 4, characterized in that: The fixed block (8) and the movable push plate (7) are connected by a slot, and a fixing pin (9) is fixedly connected to the upper end of the movable push plate (7). The movable push plate (7) drives the fixing pin (9) to form a telescopic structure above the adjustment plate (5), and the fixing pin (9) is engaged and connected in the fixing slot (10) at a corresponding position.

6. A quickly replaceable test chart for vision testing according to claim 1, characterized in that: The clamping mechanism (13) comprises a connecting bolt (14) for adjustment, a connecting bracket (15) arranged in front of the connecting bolt (14), a fixing clamping block (16) fixedly connected to the left and right ends of the connecting bracket (15), and a stabilizing block (17) fixedly connected to the upper end of the fixing clamping block (16).

7. A quickly replaceable test chart for vision testing according to claim 6, characterized in that: A rotating structure is formed between the connecting bolt (14) and the connecting bracket (15), and the connecting bolt (14) drives the fixed clamping block (16) through the connecting bracket (15) to form a telescopic structure at the upper end of the detection frame (11), and the fixed clamping block (16) drives the stabilizing block (17) to form a front-rear sliding structure with the detection frame (11).

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