Turnover mirror device for visual function training
By designing a flip mirror device with small motor drive, the fatigue and error problems caused by manual flip in visual function training are solved, and the lens is automatically transformed and position stability is achieved, and the training effect is improved.
Patent Information
- Application Number
- CN202420754362.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During visual function training, it takes a long time to keep flipping the lenses, resulting in fatigue; the manual flipping error is large, which affects the training effect.
A flip mirror device including a bracket, a lens set and a small motor is designed. The lens group consists of a positive ball lens and a negative ball lens. The rotating rod is driven by a small motor to rotate the negative ball lens, realizing automatic lens transformation. The bracket is mounted on the nose and the lens position remains stable.
No need to manually flip the lens to reduce fatigue; the lens position is stable and improve training effect.
Smart Images
Figure CN222566232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of equipment related to visual function training, in particular to a flip mirror device used for visual function training. Background Art
[0002] Visual function refers to the motor function of the visual system. It is the functional manifestation of the coordinated work of the intraocular muscles, extraocular muscles and the ocular nervous system. It is the prerequisite for the clear imaging of objects on the retina of both eyes and is closely related to vision health. At present, there are many means of vision correction. In addition to various methods such as glasses and laser surgery, visual function training has become a safe, effective and convenient way to prevent and control myopia or presbyopia.
[0003] Flip mirrors are one of the most common and effective visual training tools. Using flip mirrors for vision training is mainly to improve the sensitivity of eye adjustment through visual training, prevent the occurrence and development of myopia, and also improve the vision of amblyopia and most myopia. Because the flip mirrors will flip continuously, there will be temporary blurring of vision when flipping upwards, and it will become clear immediately when flipping downwards. This process from blur to clarity can increase the sensitivity of the eyes, thereby improving vision to a certain extent, and can also prevent eye fatigue and presbyopia.
[0004] The rotating mirror consists of a mirror ring, a handle and a lens. The lens consists of positive and negative spherical lenses. It is low-cost and widely used. However, in training practice, it takes a long time for the wrist to be turned over continuously, which makes the trainee easily fatigued and difficult to persist. At the same time, the lens of the hand-held flip mirror is prone to skew, and the position error between the visual axis and the optical axis of the lens is large, which affects detection and training. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] The technical problem to be solved by the utility model is that the wrist needs to be turned over continuously for a long time, which is easy to cause fatigue; the manual turning error is large, which affects the training effect.
[0007] (II) Technical solution
[0008] In order to solve the above technical problems, the utility model provides a technical solution: a flip mirror device for visual function training, comprising a bracket, on which a relative lens group is provided,
[0009] The bracket is composed of an inverted U-shaped nose pad and horizontal plates connected to the left and right ends below the nose pad, and the corners are smoothly connected. A slot is provided above the horizontal plate, and the cross section of the slot is an inverted T-shaped structure;
[0010] The lens group includes a positive spherical lens and a negative spherical lens. The lower end of the positive spherical lens is connected to a connecting plate that slides left and right in a slot. The cross-section of the connecting plate is an inverted T-shaped structure. A small motor is provided on the front side of the connecting plate. A rotating rod is connected to the front end of the small motor. A connecting plate 2 is provided at the other end of the rotating rod. The connecting plate 2 is connected to the negative spherical lens. When the connecting plate and the connecting plate 2 are vertical, the positive spherical lens overlaps with the negative spherical lens.
[0011] As an improvement, vertical handles are connected to the lower sides of both ends of the horizontal plate away from the center of the bracket.
[0012] As an improvement, a gasket is provided on the lower side of the bracket nose pad.
[0013] As an improvement, a limit plate 1 is fixedly provided on the side wall of the connecting plate close to the center of the bracket, and a limit plate 2 is fixedly provided on the side wall of the connecting plate away from the center of the bracket. The limit plate 1 and the limit plate 2 cooperate with the connecting plate 2, and the rotation angle range of the connecting plate 2 is 0-90°.
[0014] As an improvement, both the front and rear ends of the limiting plate 1 and the limiting plate 2 are rounded structures, and the rear end is located above the bracket.
[0015] As an improvement, a limiting bolt that cooperates with the horizontal plate is rotatably inserted on the upper side of the second limiting plate.
[0016] As an improvement, one end of the slot away from the center of the bracket extends out of the horizontal plate.
[0017] (III) Beneficial effects
[0018] The advantages of the utility model compared with the prior art are:
[0019] 1. No need to manually flip the lens, it is controlled by a small motor, which is not easy to get tired;
[0020] 2. The negative spherical lens located in the front rotates with the rotating rod as the center to change the state of the lens in front of the eye. The bracket of the device is always placed on the tip of the nose and does not need to be moved, so that the position of the lens remains stable and the training effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The utility model is a structural schematic diagram of a flip mirror device for visual function training.
[0022] Figure 2 The utility model is a front view of a flip mirror device for visual function training.
[0023] Figure 3 The utility model is a structural schematic diagram of a bracket of a flip mirror device for visual function training.
[0024] Figure 4 The utility model is a partial structural schematic diagram of a flip mirror device for visual function training.
[0025] Figure 5 The utility model is a structural schematic diagram of a lens group of a flip mirror device for visual function training.
[0026] As shown in the figure: 1. Bracket; 2. Lens group; 3. Slot; 4. Positive spherical lens; 5. Negative spherical lens; 6. Connecting plate; 7. Small motor; 8. Turn rod; 9. Connecting plate 2; 10. Handle; 11. Gasket; 12. Limit plate 1; 13. Limit plate 2; 14. Limit bolt. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below 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, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0028] Embodiment 1
[0029] like Figure 1 and Figure 2 As shown,
[0030] A flip mirror device for visual function training comprises a bracket 1, on which a relative lens group 2 is arranged, the bracket 1 is composed of an inverted U-shaped nose pad and horizontal plates connected to the left and right ends below the nose pad, and the corners are smoothly connected, a slot 3 is arranged above the horizontal plate, and the cross section of the slot 3 is an inverted T-shaped structure; the lens group 2 comprises a positive spherical lens 4 and a negative spherical lens 5, the lower end of the positive spherical lens 4 is connected to a connecting plate 6 that slides left and right in the slot 3, and the cross section of the connecting plate 6 is an inverted T-shaped structure, a small motor 7 is arranged on the front side of the connecting plate 6, a rotating rod 8 is connected to the front end of the small motor 7, and a connecting plate 2 9 is arranged at the other end of the rotating rod 8, the connecting plate 2 9 is connected to the negative spherical lens 5, and when the connecting plate 6 and the connecting plate 2 9 are vertical, the positive spherical lens 4 overlaps with the negative spherical lens 5.
[0031] Through the above structure, the lens group 2 is installed on the front side, and the position of the lens group 2 can be adjusted according to the user's eye distance to make the position of the lens group 2 more suitable. The lens group 2 is composed of a positive spherical lens 4 and a negative spherical lens 5, and the two are connected to the rotating rod 8 through a small motor 7. By controlling the small motor 7, the negative spherical lens 5 located on the front side can be rotated to change the lens situation in front of the eyes. There is no need to manually flip the lens, which is not easy to get tired. The bracket 1 of the device is always mounted on the tip of the nose and does not need to be moved, so that the lens position remains stable and the training effect is better.
[0032] It is worth noting that the supporting power supply and control switch of the small motor 7 mentioned in this embodiment can also be provided by the manufacturer. In addition, the circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art without further elaboration.
[0033] Embodiment 2
[0034] Based on Example 1, please refer to the attached Figure 3 , Attachment Figure 4 and attached Figure 5
[0035] The lower sides of the two ends of the horizontal plate away from the center of the bracket 1 are connected with vertical handles 10, and the lower side of the nose pad of the bracket 1 is provided with a gasket 11.
[0036] Through the above structure, the user can hold the handle 10 to fix the position of the device on the nose, and the gasket 11 makes the contact between the device and the user more comfortable.
[0037] A limit plate 12 is fixedly provided on the side wall of the connecting plate 6 close to the center of the bracket 1, and a limit plate 2 13 is fixedly provided on the side wall of the connecting plate 6 away from the center of the bracket 1. The limit plate 12 and the limit plate 2 13 cooperate with the connecting plate 2 9, and the rotation angle range of the connecting plate 2 9 is 0-90°.
[0038] Through the above structure, the rotation range of the negative spherical lens 5 can be limited to prevent the negative spherical lens 5 from rotating to any position and affecting normal use.
[0039] The end of the slot 3 away from the center of the bracket 1 extends out of the horizontal plate; the front and rear ends of the limit plate 12 and the limit plate 2 13 are both rounded structures, and the rear end is located above the bracket 1; a limit bolt 14 that cooperates with the horizontal plate is rotatably inserted above the limit plate 2 13.
[0040] Through the above structure, the lens group 2 can be taken out from the bracket 1 for separate storage. After the lens group 2 is installed on the bracket 1, it will not contact the operator's face to avoid hurting the user, and the position of the lens group 2 can be further fixed by tightening the limit bolt 14 to avoid easy movement during use.
[0041] The specific method of use is as follows: the bracket 1 is set up on the face of the user, and the positions of the two lens groups 2 can be adjusted according to the width of the user's eye distance so that the positions of the lenses match the user's eyes. After the user holds the handle 10 facing the training paper, the small motor 7 is controlled by the controller to start, that is, the negative spherical lens 5 located on the front side can be controlled to rotate, so that the lenses can be automatically changed without manually flipping the lenses, and fatigue is not easy. The bracket 1 of the device is always set up on the tip of the nose and does not need to be moved, so that the position of the lenses remains stable and the training effect is better.
[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0043] 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.
[0044] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A flip mirror device for visual function training, comprising a bracket (1), wherein the bracket (1) is provided with a pair of opposite lens groups (2), characterized in that: The bracket (1) is composed of an inverted U-shaped nose pad and horizontal plates connected to the left and right ends below the nose pad, and the corners are smoothly connected. A slot (3) is provided above the horizontal plate, and the cross section of the slot (3) is an inverted T-shaped structure. The lens group (2) comprises a positive spherical lens (4) and a negative spherical lens (5). The lower end of the positive spherical lens (4) is connected to a connecting plate (6) which slides left and right in the slot (3). The cross section of the connecting plate (6) is an inverted T-shaped structure. A small motor (7) is provided on the front side of the connecting plate (6). A rotating rod (8) is connected to the front end of the small motor (7). A connecting plate 2 (9) is provided on the other end of the rotating rod (8). The connecting plate 2 (9) is connected to the negative spherical lens (5). When the connecting plate (6) and the connecting plate 2 (9) are vertical, the positive spherical lens (4) and the negative spherical lens (5) overlap.
2. A flip mirror device for visual function training according to claim 1, characterized in that: The lower sides of the two ends of the horizontal plate away from the center of the bracket (1) are connected with vertical handles (10).
3. The flip mirror device for visual function training according to claim 1, characterized in that: A gasket (11) is provided on the lower side of the nose pad of the bracket (1).
4. The flip mirror device for visual function training according to claim 1, characterized in that: A limit plate 1 (12) is fixedly provided on the side wall of the connecting plate (6) close to the center of the bracket (1), and a limit plate 2 (13) is fixedly provided on the side wall of the connecting plate (6) away from the center of the bracket (1). The limit plate 1 (12) and the limit plate 2 (13) cooperate with the connecting plate 2 (9), and the rotation angle range of the connecting plate 2 (9) is 0-90°.
5. The flip mirror device for visual function training according to claim 4, characterized in that: The front and rear ends of the limiting plate 1 (12) and the limiting plate 2 (13) are both rounded structures, and the rear ends are located above the bracket (1).
6. The flip mirror device for visual function training according to claim 4, characterized in that: A limiting bolt (14) which cooperates with the horizontal plate is rotatably inserted on the upper side of the second limiting plate (13).
7. The flip mirror device for visual function training according to claim 1, characterized in that: One end of the slot (3) away from the center of the bracket (1) extends out of the horizontal plate.