Vision correction device

Abstract

The utility model provides a vision correction device, which relates to the technical field of vision correction, and comprises a correction mechanism, a limiting mechanism is arranged in the correction mechanism, the correction mechanism comprises a seat plate, a connecting frame is arranged at one end of the seat plate, a worm gear is arranged at one end of the side surface of the connecting frame, a middle plate is arranged at the top of the worm gear, and the middle plate is connected with the connecting frame. And a binding belt is arranged at one end of the middle plate. According to the chest restraint device, the worm can rotate through the rotating handle, the worm gear can be affected in the rotating process to drive the middle plate to rotate, due to the fact that the middle plate is rotated, one end of the restraint strap can be wound, the chest position of a child can be restrained along with continuous winding, and therefore the chest restraint device is convenient to use. The positions of the head and the eyes of the child are adjusted by changing the sitting posture, then the sight line angle is changed, and if the child has some vision problems such as inaccurate eye focusing or sight line deflection, the sight line angle of the sitting posture is adjusted, so that the problems can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vision correction, in particular to a vision correction device. Background Art

[0002] Vision refers to the clarity and ability of the eyes to recognize external objects. Vision is usually assessed through a vision test, usually tested with an eye chart. Poor vision can be caused by a variety of reasons, including myopia, hyperopia, astigmatism, etc. Maintaining good vision is essential for daily life and work, so it is very important to have regular eye examinations and take appropriate protective measures.

[0003] However, in the prior art, some children have been sitting in an improper posture for a long time during the learning process, which causes their eyes to be uncontrollably close to the learning materials. Being too close to the learning materials for a long time may increase the risk of myopia, especially when children's eyes are still in the development stage. Being too close to the learning materials will increase the strain on the eyes and accelerate the development of myopia. Incorrect learning postures and eye habits may lead to long-term vision problems and may even affect eye health in adulthood. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and provide a vision correction device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vision correction device, comprising: a correction mechanism, a limiting mechanism is arranged inside the correction mechanism, the correction mechanism includes a seat plate, a connecting frame is arranged at one end of the seat plate, a worm gear is arranged at one end of the side of the connecting frame, a median plate is arranged on the top of the worm gear, a restraining belt is arranged at one end of the median plate, a worm is arranged on the outer side of the worm wheel, and a turning handle is arranged at one end of the worm gear.

[0006] As a preferred embodiment, a backrest plate is provided on the top of the seat plate, a side plate is provided on the inner side of the backrest plate, a concave hole is opened on the surface of the side plate, an insertion rod is provided on the inner surface of the concave hole, an adjustment ring is provided at one end of the insertion rod, and a restraining belt is provided on the inner side of the side plate.

[0007] As a preferred embodiment, the limiting mechanism includes a cross bar, one end of which is fixedly connected to one side of the limiting block, the outer side of the limiting block is mutually engaged with the inner side of the handle, the inner side of the cross bar is slidably connected to the outer side of the vertical bar, and one end of the vertical bar is fixedly connected to the inner side of the seat plate.

[0008] As a preferred embodiment, one end of the seat plate is fixedly connected to one end of the connecting frame, one end of the side of the connecting frame is rotatably connected to one side of the worm gear, the top of the worm gear is fixedly connected to the bottom end of the center plate, and one end of the center plate is slidably connected to one end of the restraining belt.

[0009] As a preferred embodiment, the outer side of the worm wheel is meshedly connected with the outer side of the worm, one end of the worm is connected through the inside of the seat plate, and one end of the worm is fixedly connected to one side of the handle.

[0010] As a preferred embodiment, the top of the seat plate is fixedly connected to the bottom end of the back plate, and the inner side of the back plate is fixedly connected to one end of the side plate.

[0011] As a preferred embodiment, the inner surface of the concave hole and one end of the insertion rod are mutually engaged, and the other end of the insertion rod is connected through the inside of the adjustment ring.

[0012] As a preferred implementation, the inner side of the adjustment ring is slidably connected to the outer side of the side plate, and the top end of the adjustment ring is in contact with the bottom side of the restraint belt.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] The utility model has an installed correction mechanism, which can rotate the worm by turning the handle, and the worm wheel will be affected during the rotation, driving the median plate to rotate. As the median plate is rotated, one end of the restraint belt will be wound, and the continuous winding will restrain the child's chest position. Therefore, the position of the child's head and eyes can be adjusted by changing the sitting posture, thereby changing the angle of sight. If the child has some vision problems, such as inaccurate eye focus or skewed sight, adjusting the sight angle of the sitting posture can help improve these problems.

[0015] By installing a limiting mechanism, the limiting block is inserted into the handle to restrict the handle and prevent the worm from rotating at will, which would cause the strap to become loose. Therefore, maintaining the proper tightness of the strap can ensure that it effectively applies pressure, thereby improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic structural diagram of a vision correction device provided by the present invention.

[0017] Figure 2 This is a schematic diagram of the disassembled structure of a correction mechanism component of a vision correction device provided by the utility model.

[0018] Figure 3This is a schematic diagram of the dissected structure of a limiting mechanism component of a vision correction device provided by the utility model.

[0019] Figure 4 This is an enlarged structural schematic diagram of a correction mechanism component of a vision correction device provided by the utility model.

[0020] Legend:

[0021] 1. Correction mechanism; 11. Seat plate; 12. Worm gear; 13. Worm; 14. Turn handle; 15. Center plate; 16. Restraint belt; 17. Side plate; 18. Concave hole; 19. Adjustment ring; 110. Insert rod; 111. Back plate; 112. Connection frame

[0022] 2. Limiting mechanism; 21. Horizontal bar; 22. Limiting block; 23. Vertical bar. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0024] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0028] Example 1

[0029] like Figure 1-4 As shown, the utility model provides a technical solution: a vision correction device, comprising: a correction mechanism 1, a limiting mechanism 2 is arranged inside the correction mechanism 1, the correction mechanism 1 comprises a seat plate 11, a connecting frame 112 is arranged at one end of the seat plate 11, a worm gear 12 is arranged at one end of the side of the connecting frame 112, a median plate 15 is arranged at the top of the worm gear 12, a restraining belt 16 is arranged at one end of the median plate 15, a worm 13 is arranged at the outer side of the worm gear 12, a turning handle 14 is arranged at one end of the worm 13, a back plate 111 is arranged at the top of the seat plate 11, a side plate 17 is arranged on the inner side of the back plate 111, a concave hole 18 is opened on the surface of the side plate 17, an insertion rod 110 is arranged on the inner surface of the concave hole 18, an adjustment ring 19 is arranged at one end of the insertion rod 110, and a restraining belt 16 is arranged on the inner side of the side plate 17.

[0030] In this embodiment, in order to correct the child's vision through sitting posture, the child needs to sit on the seat plate 11 and pass through the restraint belt 16 on the backrest plate 111. At this time, the worm 13 is rotated by turning the handle 14, and the worm wheel 12 is affected during the rotation, driving the middle plate 15 to rotate. As the middle plate 15 is rotated, one end of the restraint belt 16 is wound, and the child's chest position is bound as it is continuously wound. Therefore, the position of the child's head and eyes is adjusted by changing the sitting posture, thereby changing the angle of sight. If the child has some vision problems, such as inaccurate eye focus or deviated sight, adjusting the sight angle of the sitting posture helps to improve these problems.

[0031] Secondly, in order to be suitable for children of different heights, the adjustment ring 19 is moved upward on the side panel 17, and the restraint belt 16 is adjusted in the same way until it is adjusted to a suitable position to ensure that the restraint belt 16 is flush with the chest. This ensures that the device is suitable for children of various ages and heights without the need for additional customization or replacement of parts. By ensuring that the restraint belt 16 is flush with the child's chest, the comfort and safety of the child during use can be improved. In addition, if the restraint belt 16 is not in the correct position, it may lead to an incorrect sitting posture, and adjustment allows the child to study in the correct sitting posture.

[0032] Example 2

[0033] like Figure 1-3 As shown, the limiting mechanism 2 includes a cross bar 21, one end of which is fixedly connected to one side of a limiting block 22, the outer side of the limiting block 22 is mutually engaged with the inner side of the turning handle 14, the inner side of the cross bar 21 is slidingly connected to the outer side of the vertical bar 23, and one end of the vertical bar 23 is fixedly connected to the inner side of the seat plate 11.

[0034] In the present embodiment, after the turning handle 14 is rotated, the horizontal bar 21 is moved so that the limit block 22 enters into the turning handle 14, thereby restricting the turning handle 14 and preventing the worm 13 from rotating arbitrarily, which would cause the restraining belt 16 to become loose. Therefore, maintaining the proper tightness of the restraining belt 16 can ensure that it effectively applies pressure, thereby improving the treatment effect. If the restraining belt 16 is loose, it may affect the correction effect. By limiting the movement of the turning handle 14, the correct tightness of the restraining belt 16 can be maintained. Secondly, the installed vertical rod 23 is inside the horizontal bar 21, thereby effectively preventing the horizontal bar 21 from moving away from its original position.

[0035] Working principle:

[0036] like Figure 1-4 As shown, the worm 13 is rotated by turning the handle 14, and during the rotation, the worm wheel 12 will be affected, driving the median plate 15 to rotate. As the median plate 15 is rotated, one end of the restraint belt 16 will be wound, and the continuous winding will restrain the child's chest position. Therefore, the position of the child's head and eyes is adjusted by changing the sitting posture, thereby changing the angle of sight. By moving the adjustment ring 19 upward on the side plate 17, the restraint belt 16 will be adjusted in the same way until it is adjusted to a suitable position, ensuring that the restraint belt 16 is flush with the chest position, which can ensure that the device is suitable for children of various ages and heights without the need for additional customization or replacement of parts, and by ensuring that the restraint belt 16 is flush with the child's chest position.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may 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 detail for the sake of simplicity.

[0038] The 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 the utility model should be included in the scope of protection of the utility model.

Claims

1. A vision correction device, characterized in that: include: A correction mechanism (1), wherein a limiting mechanism (2) is arranged inside the correction mechanism (1), and the correction mechanism (1) comprises a seat plate (11), a connecting frame (112) is arranged at one end of the seat plate (11), a worm gear (12) is arranged at one end of the side of the connecting frame (112), a center plate (15) is arranged at the top of the worm gear (12), a restraining belt (16) is arranged at one end of the center plate (15), a worm (13) is arranged on the outer side of the worm gear (12), and a turning handle (14) is arranged at one end of the worm gear (13).

2. A vision correction device according to claim 1, characterized in that: A backrest plate (111) is arranged on the top of the seat plate (11), a side plate (17) is arranged on the inner side of the backrest plate (111), a concave hole (18) is opened on the surface of the side plate (17), an insertion rod (110) is arranged on the inner surface of the concave hole (18), an adjustment ring (19) is arranged at one end of the insertion rod (110), and a restraining belt (16) is arranged on the inner side of the side plate (17).

3. A vision correction device according to claim 1, characterized in that: The limiting mechanism (2) comprises a cross bar (21), one end of which is fixedly connected to one side of a limiting block (22), the outer side of the limiting block (22) is mutually engaged with the inner side of the turning handle (14), the inner side of the cross bar (21) is slidably connected to the outer side of a vertical bar (23), and one end of the vertical bar (23) is fixedly connected to the inner side of the seat plate (11).

4. A vision correction device according to claim 1, characterized in that: One end of the seat plate (11) is fixedly connected to one end of the connecting frame (112), one end of the side surface of the connecting frame (112) is rotatably connected to one side of the worm gear (12), the top of the worm gear (12) is fixedly connected to one end of the bottom of the center plate (15), and one end of the center plate (15) is slidably connected to one end of the restraining belt (16).

5. A vision correction device according to claim 1, characterized in that: The outer side of the worm wheel (12) is meshedly connected with the outer side of the worm (13), one end of the worm (13) is connected through the inside of the seat plate (11), and one end of the worm (13) is fixedly connected to one side of the turning handle (14).

6. A vision correction device according to claim 2, characterized in that: The top of the seat plate (11) is fixedly connected to the bottom end of the back plate (111), and the inner side of the back plate (111) is fixedly connected to one end of the side plate (17).

7. A vision correction device according to claim 2, characterized in that: The inner surface of the concave hole (18) is mutually engaged with one end of the insertion rod (110), and the other end of the insertion rod (110) is connected through the inside of the adjustment ring (19).

8. A vision correction device according to claim 2, characterized in that: The inner side of the adjusting ring (19) is slidably connected to the outer side of the side plate (17), and the top end of the adjusting ring (19) is in contact with the bottom side of the restraining belt (16).

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