Calibrating device of optometry machine

Abstract

The utility model discloses a calibrating device for an optometry machine, which belongs to the technical field of optometry machines and comprises a calibrating box, a mounting chamber is arranged on the top surface of the calibrating box, a plastic placing plate is placed in an inner cavity of the mounting chamber, and a box cover is hinged to the top of the calibrating box. According to the plastic placing plate fixing device, through matched use of the springs, the U-shaped clamping blocks, the sliding rods and the inwards-convex clamping grooves, when a plastic placing plate is placed in the mounting chamber, the top ends of the inwards-convex clamping grooves are driven to be inserted into the two sides of the inner cavities of the inwards-convex clamping grooves through the elastic force of the springs, and therefore the plastic placing plate is stably fixed; when the U-shaped clamping block is operated, the U-shaped clamping block extends into the U-shaped clamping block from the inner threaded hole handle, and the inner threaded hole can be plugged through the outer threaded cover, so that the fixing structure is directly located in the verification box, and the problems that the clamping assembly is located on the outer side of the verification device body, and collision and obstruction are likely to be generated during movement and storage are solved; and the practicability of the optometry machine calibrating device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optometry machines, and more specifically to an optometry machine calibration device. Background Art

[0002] An optometre is an instrument used for optometry. The indications of vertex power, cylindrical axis and pupil distance given by the optometre can only be used as reference values ​​for the optometry prescription required for the person being tested. Optometres are divided into two types: subjective optometres and objective optometres. Optometre calibration devices are used to calibrate the measuring instruments of the two types of optometres. Usually, the optometre calibration device is integrated with the carrying case.

[0003] After searching, the utility model patent with announcement number CN214748764U discloses an ophthalmometer calibration device, including a calibration device body, a box cover is fixed on the calibration device body, a plastic placement plate is placed in the calibration device body, a calibration instrument is placed in the plastic placement plate, a handle is fixed on the calibration device body, a limit assembly is fixed on the plastic placement plate in the calibration device body, and a clamping assembly is fixed on the outer wall of the calibration device body; through the setting of the limit assembly, wherein the limit assembly includes a fixed plate, a rotating shaft, a sleeve rod, a protective plate, a clamping block and a clamping slot, through this device, after the calibration instrument is placed in the plastic placement plate, the calibration device body will not be easily shaken out when it is carried and shaken, thereby ensuring the firmness of the calibration instrument in the plastic placement plate.

[0004] However, the above patents still have the following shortcomings: the clamping components on both sides are located outside the main body of the calibration device, which is easy to cause collision and obstruction when moving and storing, and is not practical; and the box can only be carried by the handle, which is not convenient when it is carried over a long distance. For this reason, we propose an optometry calibration device. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide an optometry machine calibration device.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A calibration device for an optometre comprises a calibration box, wherein an installation chamber is provided on the top surface of the calibration box, a plastic placement plate is placed in the inner cavity of the installation chamber, a box cover is hinged on the top of the calibration box, a plastic baffle is fixedly sleeved on the bottom of the box cover, an inner convex groove is provided on the bottom surface of the plastic placement plate, a movable groove is provided at the bottom of the installation chamber, an internal threaded hole is provided on the bottom surface of the calibration box, a group of springs are fixedly connected to the inner cavity of the movable groove at both ends, and the ends of the two groups of springs are fixedly connected with U-shaped blocks, the top of the U-shaped block is movably sleeved into the inner cavity of the inner convex groove, the side of the bottom end of the U-shaped block is fixedly connected with a sliding rod, the sliding rod is movably sleeved on the calibration box, the bottom of the U-shaped block is fixedly connected with a lever block, a moving mechanism is provided at the end of the calibration box, and a pulling mechanism is provided on the calibration box.

[0008] As a preferred solution of the utility model, the moving mechanism includes an operating groove opened at one end of the calibration box and a storage groove opened on the bottom surface of the calibration box, the bottom thread of the inner cavity of the operating groove is sleeved with a screw rod, the bottom end of the screw rod extends to the inner cavity of the storage groove and is rotatably connected to a mounting plate, a plurality of moving wheels are fixedly installed on the bottom surface of the mounting plate, and a knob is fixedly connected to the top end of the screw rod.

[0009] As a preferred solution of the utility model, the pulling mechanism includes two slide grooves opened inside the calibration box and a storage hole opened at the other end of the calibration box, one end of the two slide grooves are fixedly connected to a magnet plate, the other end of the two slide grooves are fixedly connected to a magnet ring, the two slide grooves are respectively movably sleeved with pull rods, one end of the pull rods is fixedly connected to an iron column, and the other ends of the two pull rods extend to the inner cavity of the storage hole and are fixedly connected to a pull plate.

[0010] As a preferred solution of the utility model, a plurality of calibration instrument placement slots are provided on the top surface of the plastic placement plate, and a fixing protrusion is provided on the bottom surface of the plastic baffle, and the bottom end of the fixing protrusion extends to the inner cavity of the calibration instrument placement slot.

[0011] As a preferred solution of the utility model, the inner cavity thread of the internal threaded hole is installed with an external threaded cover.

[0012] As a preferred solution of the utility model, the inner wall of the installation chamber is in contact with the side surface of the plastic placement plate, and the top surface of the plastic placement plate is flush with the top surface of the calibration box.

[0013] As a preferred solution of the utility model, a handle is fixedly installed on the outer side of the calibration box.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In the utility model, by using a spring, a U-shaped clamping block, a sliding rod and an inner convex clamping groove in coordination, when the plastic placement plate is placed in the installation chamber, the elastic force of the spring is used to drive the top end of the inner convex clamping groove to be inserted into the two sides of the inner cavity of the inner convex clamping groove, thereby realizing stable fixation of the plastic placement plate; when operating the U-shaped clamping block, the hand is inserted from the inner threaded hole, and the inner threaded hole can be blocked by an outer threaded cover, so that the fixing structure is directly located inside the calibration box, avoiding the problem that the clamping assembly is located outside the calibration device body, which is prone to collision and obstruction during movement and storage, thereby improving the practicality of the ophthalmometer calibration device.

[0016] (2) In the utility model, the device can be carried by the handle, and the moving wheels can be extended from the storage slot by the cooperation between the screw rod and the calibration box, and the pull plate can be pulled out from the storage hole. The calibration box can be moved by the pull plate, the pull rod and the iron column, and the calibration box can be moved by the moving wheels, thereby realizing the function of towing the device and improving the convenience of the ophthalmometer calibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 This is a structural schematic diagram of the U-shaped card block of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the chute of the utility model;

[0021] Figure 5 This is a schematic diagram of the disassembly of the box cover and the plastic baffle of the utility model;

[0022] Figure 6 This is a structural schematic diagram of the plastic placement plate of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the verification box of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Calibration box; 2. Pulling mechanism; 3. Moving mechanism; 4. Installation chamber; 5. Moving slot; 6. Spring; 7. U-shaped block; 8. Slide rod; 9. Plastic placement plate; 10. Inner convex slot; 11. Pull block; 12. Calibration instrument placement slot; 13. Box cover; 14. Plastic baffle; 15. Fixed protrusion; 16. Slide slot; 17. Storage hole; 18. Pull rod; 19. Pull plate; 20. Iron column; 21. Magnet plate; 22. Magnet ring; 23. Storage slot; 24. Operation slot; 25. Screw; 26. Installation plate; 27. Moving wheel; 28. Knob; 29. ​​Internal threaded hole; 30. External threaded cover; 31. Handle. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings 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.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Example:

[0030] See also Figure 1-7A calibration device for an optometre comprises a calibration box 1, a mounting chamber 4 is arranged on the top surface of the calibration box 1, a plastic placement plate 9 is placed in the inner cavity of the mounting chamber 4, a box cover 13 is hinged on the top of the calibration box 1, a plastic baffle 14 is fixedly sleeved on the bottom of the box cover 13, an inner convex slot 10 is arranged on the bottom surface of the plastic placement plate 9, a movable slot 5 is provided at the bottom of the mounting chamber 4, an inner threaded hole 29 is provided on the bottom surface of the calibration box 1, a group of springs 6 are fixedly connected to the inner cavity of the movable slot 5 at both ends, a U-shaped block 7 is fixedly connected to the ends of the two groups of springs 6, the top of the U-shaped block 7 is movably sleeved in the inner cavity of the inner convex slot 10, a slide rod 8 is fixedly connected to the side surface of the bottom end of the U-shaped block 7, the slide rod 8 is movably sleeved on the calibration box 1, a wrench 11 is fixedly connected to the bottom of the U-shaped block 7, a moving mechanism 3 is provided at the end of the calibration box 1, and a pulling mechanism 2 is provided on the calibration box 1.

[0031] In this embodiment, the inner wall of the inwardly convex slot 10 fits with the side surface of the top of the U-shaped block 7, ensuring the stability of the U-shaped block 7 fixing the plastic placement plate 9. In addition, the U-shaped block 7 is limited by the cooperation between the slide rod 8 and the inspection box 1, ensuring the stability of the U-shaped block 7 on the inspection box 1. Locking devices are provided on the inspection box 1 and the box cover 13.

[0032] For details, please refer to Figure 2 The moving mechanism 3 includes an operating slot 24 opened at one end of the calibration box 1 and a receiving slot 23 opened on the bottom surface of the calibration box 1. The bottom of the inner cavity of the operating slot 24 is threadedly sleeved with a screw rod 25. The bottom end of the screw rod 25 extends to the inner cavity of the receiving slot 23 and is rotatably connected to a mounting plate 26. A plurality of moving wheels 27 are fixedly installed on the bottom surface of the mounting plate 26, and a knob 28 is fixedly connected to the top end of the screw rod 25.

[0033] In this embodiment, the side surface of the mounting plate 26 fits with the inner wall of the receiving groove 23 , ensuring that the mounting plate 26 can only move up and down along the axial direction of the screw rod 25 .

[0034] For details, please refer to Figure 1 and Figure 4 The pulling mechanism 2 includes two slide grooves 16 opened inside the calibration box 1 and a storage hole 17 opened at the other end of the calibration box 1, one end of the two slide grooves 16 is fixedly connected to a magnet plate 21, the other end of the two slide grooves 16 is fixedly connected to a magnet ring 22, and the two slide grooves 16 are respectively movably sleeved with pull rods 18, one end of the pull rods 18 is fixedly connected to an iron column 20, and the other ends of the two pull rods 18 extend to the inner cavity of the storage hole 17 and are fixedly connected to a pull plate 19.

[0035] In this embodiment, the position of the pull rod 18 is fixed by the magnetic attraction between the iron column 20 and the magnet plate 21 , and between the iron column 20 and the magnet ring 22 .

[0036] For details, please refer to Figure 2 and Figure 5 The top surface of the plastic placement plate 9 is provided with a plurality of calibration instrument placement slots 12 , and the bottom surface of the plastic baffle 14 is provided with a fixing protrusion 15 , and the bottom end of the fixing protrusion 15 extends to the inner cavity of the calibration instrument placement slot 12 .

[0037] In this embodiment, an optometrists calibration device is placed in the calibration device placement slot 12 , and the calibration device in the calibration device placement slot 12 is limited by the fixing protrusion 15 .

[0038] For details, please refer to Figure 2 The inner cavity thread of the internal thread hole 29 is installed with an external thread cover 30.

[0039] In this embodiment, the internal thread hole 29 is sealed by an external thread cover 30 .

[0040] For details, please refer to Figure 2 and Figure 3 The inner wall of the installation chamber 4 is in contact with the side surface of the plastic placement plate 9, and the top surface of the plastic placement plate 9 is flush with the top surface of the calibration box 1.

[0041] In this embodiment, the stability of the plastic placement plate 9 placed in the installation chamber 4 is ensured by the contact between the side surface of the plastic placement plate 9 and the inner wall of the installation chamber 4 .

[0042] For details, please refer to Figure 7 A handle 31 is fixedly installed on the outer side of the verification box 1.

[0043] In this embodiment, the testing device is carried by a handle 31 .

[0044] Working principle: When in use, first pull the lever 11 from the internal threaded hole 29, use the two levers 11 to drive the two U-shaped blocks 7 to move closer to each other, and place the plastic placement plate 9 in the installation chamber 4 on the calibration box 1. At this time, the top of the U-shaped block 7 extends into the inner convex groove 10 at the bottom of the plastic placement plate 9. Release the lever 11, and use the elastic force of the spring 6 to drive the U-shaped blocks 7 to separate from each other, so that the top of the U-shaped block 7 is stuck in the two sides of the inner convex groove 10, thereby fixing the plastic placement plate 9 in the calibration box 1, and then threadably install the external thread cover 30 in the internal threaded hole 29, and place it in the calibration instrument placement slot 12 on the plastic placement plate 9. Put on the optometrists calibration equipment, close the box cover 13, so that the fixing protrusion 15 at the bottom of the plastic baffle 14 inside the box cover 13 is inserted into the calibration instrument placement slot 12 to fix the optometrists calibration equipment. Finally, when the device is moved over a long distance, turn the knob 28 to drive the screw 25 to rotate, and use the threaded fit between the screw 25 and the calibration box 1 to drive the mounting plate 26 and the moving wheel 27 to move downward, so that the moving wheel 27 contacts the ground, hold the pull plate 19 and pull it outward, at this time the pull rod 18 moves outward, so that the iron column 20 contacts the magnet ring 22, and the calibration box 1 is pulled by the pull plate 19, the pull rod 18 and the iron column 20 to move.

[0045] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. An optometry machine calibration device, comprising a calibration box (1), Features: The top surface of the inspection box (1) is provided with an installation chamber (4), the inner cavity of the installation chamber (4) is provided with a plastic placement plate (9), the top of the inspection box (1) is hinged with a box cover (13), the bottom of the box cover (13) is fixedly sleeved with a plastic baffle (14), the bottom surface of the plastic placement plate (9) is provided with an inner convex groove (10), the bottom of the installation chamber (4) is provided with a movable groove (5), the bottom surface of the inspection box (1) is provided with an internal threaded hole (29), and the two ends of the inner cavity of the movable groove (5) are respectively fixed A group of springs (6) are connected, and the ends of the two groups of springs (6) are fixedly connected to U-shaped blocks (7). The top of the U-shaped block (7) is movably sleeved into the inner cavity of the inner convex slot (10). The side of the bottom end of the U-shaped block (7) is fixedly connected to a slide bar (8). The slide bar (8) and the inspection box (1) are movably sleeved. The bottom of the U-shaped block (7) is fixedly connected to a lever block (11). A moving mechanism (3) is provided at the end of the inspection box (1), and a pulling mechanism (2) is provided on the inspection box (1).

2. An optometry calibration device according to claim 1, Features: The moving mechanism (3) comprises an operating slot (24) provided at one end of the calibration box (1) and a receiving slot (23) provided at the bottom surface of the calibration box (1); a screw rod (25) is threadedly sleeved at the bottom of the inner cavity of the operating slot (24); the bottom end of the screw rod (25) extends to the inner cavity of the receiving slot (23) and is rotatably connected to a mounting plate (26); a plurality of moving wheels (27) are fixedly mounted on the bottom surface of the mounting plate (26); and a knob (28) is fixedly connected to the top end of the screw rod (25).

3. An optometry calibration device according to claim 2, Features: The pulling mechanism (2) includes two slide grooves (16) provided inside the inspection box (1) and a storage hole (17) provided at the other end of the inspection box (1), one end of the two slide grooves (16) is fixedly connected to a magnet plate (21), the other end of the two slide grooves (16) is fixedly connected to a magnet ring (22), and the two slide grooves (16) are respectively movably sleeved with a pull rod (18), one end of the pull rod (18) is fixedly connected to an iron column (20), and the other end of the two pull rods (18) extends to the inner cavity of the storage hole (17) and is fixedly connected to a pull plate (19).

4. The optometry calibration device according to claim 1, Features: The top surface of the plastic placement plate (9) is provided with a plurality of calibration instrument placement slots (12), and the bottom surface of the plastic baffle (14) is provided with a fixing protrusion (15), and the bottom end of the fixing protrusion (15) extends to the inner cavity of the calibration instrument placement slot (12).

5. The optometry calibration device according to claim 1, Features: The inner cavity of the internal thread hole (29) is threadedly mounted with an external thread cover (30).

6. The optometry calibration device according to claim 1, Features: The inner wall of the installation chamber (4) is in contact with the side surface of the plastic placement plate (9), and the top surface of the plastic placement plate (9) is flush with the top surface of the inspection box (1).

7. The optometry calibration device according to claim 1, Features: A handle (31) is fixedly mounted on the outer side of the verification box (1).

Images