Auxiliary glasses overturning module used in glasses

Abstract

The utility model relates to an auxiliary glasses turnover module used in glasses, which comprises a fixed outer sleeve, a rotary connecting rod, a fixed positioning piece and a rotary positioning piece, the rotary connecting rod is movably arranged in the fixed outer sleeve in a penetrating manner, two ends of the rotary connecting rod are both positioned outside the fixed outer sleeve, the rotary positioning piece is fixedly sleeved on the rotary connecting rod, and the fixed positioning piece and the rotary positioning piece are arranged in the fixed outer sleeve. The rotary connecting rod is movably sleeved with the fixed positioning piece, the fixed positioning piece is fixedly connected into the fixed outer sleeve, and a plurality of first bevel teeth are circumferentially arranged on the side, facing the rotary positioning piece, of the fixed positioning piece. Second bevel teeth with the same number as the first bevel teeth are circumferentially arranged on the side, facing the fixed positioning piece, of the rotary positioning piece, the second bevel teeth are meshed with the first bevel teeth, and an elastic piece used for driving the rotary positioning piece to be pressed on the fixed positioning piece is arranged on the connecting rod. According to the utility model, the automatic positioning and locking of the secondary mirror in the overturning process are realized, the overturning operation is convenient, the positioning is reliable, and the structure is compact.

Description

Technical Field

[0001] This utility model relates to the field of eyeglass accessories technology, and in particular to a secondary mirror flipping module for eyeglasses. Background Technology

[0002] As people's quality of life improves, multi-functional glasses are becoming increasingly popular. Among them, glasses equipped with flip-up secondary lenses (such as sunglasses lenses, polarized lenses, or reading lenses) are a common type. Users can flip the secondary lens in front of the main viewing window or store it on top, depending on the lighting environment or usage needs, offering high flexibility.

[0003] To achieve the flipping and positioning of the secondary mirror, the following structural solutions are mainly used in the existing technology:

[0004] Simple hinge with adjustable screw structure: This is a relatively traditional method. A pivot hinge connects the secondary lens to the frame, and an adjusting screw controls the tightness of rotation. After the user flips the secondary lens, the screw's preset friction maintains its position. The disadvantages of this solution are: first, adjustment is inconvenient, requiring a special tool (such as a miniature screwdriver) for adjustment, and the process is cumbersome; second, reliability is poor, as the screw can easily loosen due to vibration after prolonged use, causing the secondary lens to fail to stay in place, frequently slipping off, or becoming difficult to flip and experiencing accelerated wear due to over-tightening.

[0005] Snap-on or spring-loaded positioning structure: Another common solution is to set one or more snap-on recesses along the flipping path, relying on the springs or protrusions on the secondary lens to cooperate with them for positioning. The disadvantages of this type of solution are: First, it feels stiff and is prone to wear; considerable force is usually required to flip it over the snap-on points, resulting in a poor user experience. Furthermore, the snap-on points and springs are prone to wear after long-term use, leading to positioning failure, rattling, or loosening. Second, the structure is relatively complex and takes up a lot of space, which is not conducive to the overall lightweight and thin design of the glasses. Third, the positioning positions are fixed and limited, usually only allowing for "open" and "closed" positions, lacking flexibility.

[0006] In summary, some existing secondary lens flipping and positioning structures suffer from problems such as inconvenient operation, insufficient long-term reliability, lack of compactness, or poor user experience. Therefore, there is an urgent need for a secondary lens flipping module that is easy to operate, provides reliable positioning, automatically locks, and has a compact structure, in order to improve the overall quality and user satisfaction of such functional glasses. Utility Model Content

[0007] This invention proposes a secondary lens flipping module for eyeglasses, which enables easy operation, reliable positioning, and automatic locking of the secondary lens flipping, thus solving the aforementioned problems existing in the prior art.

[0008] The technical solution of this utility model is implemented as follows: A secondary lens flipping module for eyeglasses includes a fixed outer sleeve, a rotating connecting rod, a fixed positioning component, and a rotating positioning component. The rotating connecting rod is movably inserted inside the fixed outer sleeve, with both ends of the rotating connecting rod located outside the fixed outer sleeve. The rotating positioning component is fixedly sleeved on the rotating connecting rod and movably sleeved on the rotating connecting rod. The fixed positioning component is fixedly connected inside the fixed outer sleeve and is located on one side of the rotating positioning component. The fixed positioning component has a plurality of first inclined teeth arranged circumferentially on the side facing the rotating positioning component, and the rotating positioning component has the same number of second inclined teeth arranged circumferentially on the side facing the fixed positioning component. The second inclined teeth mesh with the first inclined teeth. The connecting rod is provided with an elastic element for driving the rotating positioning component to press against the fixed positioning component.

[0009] Preferably, the rotating connecting rod is fixedly connected to a stop plate on the side of the fixed positioning member away from the rotating positioning member, and the elastic member is located between the stop plate and the fixed positioning member.

[0010] Preferably, the elastic element is a compression spring, and the two ends of the compression spring are respectively pressed against the abutment plate and the fixed positioning element.

[0011] Preferably, the fixed positioning component, the rotating positioning component, the abutment plate, and the elastic component are all located inside the fixed outer sleeve.

[0012] Preferably, the number of the first inclined surface teeth and the second inclined surface teeth are both six.

[0013] Preferably, the side wall of the fixed outer sleeve is provided with rivet holes in a radial direction, and the fixed positioning member is provided with a fixing hole corresponding to the rivet holes, and a rivet inserted into the fixing hole is riveted to the rivet hole.

[0014] Preferably, the outer wall of the fixed outer sleeve is hexagonal prism-shaped.

[0015] Preferably, the fixed outer sleeve is used to weld and fix it to the eyeglasses, and the two ends of the rotating connecting rod are used to weld and fix it to the secondary lens.

[0016] In summary, the beneficial effects of this utility model are as follows:

[0017] 1. By using the interlocking first and second inclined teeth on the fixed and rotating positioning components, along with the elastic element that drives them to press together, the automatic positioning and locking of the secondary lens during the flipping process is achieved by creatively utilizing the axial displacement generated by the inclined teeth during rotation and the spring return force. This structure eliminates traditional screw adjustments or complex buckles, making the operation one-step, with a clear feel and reliable positioning. Furthermore, its compact structure makes it easy to miniaturize to meet the lightweight requirements of eyeglasses.

[0018] 2. The force application point of the elastic element is designed on the side of the fixed positioning element away from the rotating positioning element, and the pressure is transmitted through the abutment plate, so that the entire elastic drive mechanism and the meshing gear mechanism are arranged in series along the axial direction of the rotating connecting rod. This layout greatly optimizes the axial space utilization of the structure, allowing the module to remain compact in the radial direction, providing a structural basis for embedding all functional components in the outer tube, thus making the whole more compact.

[0019] 3. The six teeth are evenly distributed on the circumference, which means that the secondary mirror can achieve positioning once every 60 degrees of rotation. This number achieves a good balance between positioning accuracy (providing multiple selectable settings) and structural strength (the size of a single tooth is not too small and fragile), which can meet the angle requirements in most usage scenarios, while ensuring that each beveled tooth has enough contact area to withstand the stress of repeated meshing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0022] Figure 2 for Figure 1 A schematic diagram of the structure when observed from another angle;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model after removing the fixing outer tube;

[0024] Figure 4 This is a schematic diagram of the structure of the present invention after the fixed outer sleeve is exploded;

[0025] Figure 5 This is an actual product image of the present invention when it is installed on eyeglasses and a secondary lens.

[0026] In the diagram: 1. Fixed outer sleeve; 11. Rivet hole; 2. Rotating connecting rod; 3. Fixed positioning component; 31. First inclined tooth; 32. Fixing hole; 4. Rotating positioning component; 41. Second inclined tooth; 5. Support plate; 6. Compression spring; 7. Rivet; 100. Eyeglasses; 200. Secondary eyeglass. Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example:

[0029] like Figures 1 to 5 As shown, this utility model discloses a secondary lens flipping module for eyeglasses, which can automatically position the secondary lens after flipping. It includes a fixed outer sleeve 1, a rotating connecting rod 2, a fixed positioning component 3, and a rotating positioning component 4. The fixed outer sleeve 1 serves as a basic support and outer shell structure. Its outer wall is preferably designed as a hexagonal prism, a shape that facilitates clamping and fixing with tools during assembly and welding, preventing slippage. A rivet hole 11 is radially formed on the side wall of the fixed outer sleeve 1.

[0030] The rotating connecting rod 2, as the core rotating and connecting component, is movably inserted inside the fixed outer sleeve 1. Specifically, the rotating connecting rod 2 passes through the fixed outer sleeve 1, and both ends of it extend to the outside of the fixed outer sleeve 1 for subsequent connection with the secondary mirror.

[0031] The fixed positioning component 3 and the rotating positioning component 4 are key mating parts for achieving the positioning function. The fixed positioning component 3 is movably sleeved on the rotating connecting rod 2 and is riveted to the rivet hole 11 on the side wall of the fixed outer sleeve 1 by a rivet 7 inserted into its fixing hole 32, thereby achieving the fixed installation of the fixed positioning component 3 within the fixed outer sleeve 1 and preventing it from rotating with the rotating connecting rod 2. (It should be noted that the rivet can also be replaced with a screw, and the fixing hole can have an internal thread for screw engagement). The rotating positioning component 4 is fixedly sleeved on the rotating connecting rod 2, and can achieve synchronous rotation through welding, interference fit, bonding, or key connection. The rotating positioning component 4 is located on one side of the fixed positioning component 3, and the two are arranged adjacent to each other.

[0032] On the end face of the fixed positioning member 3 facing the rotating positioning member 4, a plurality of first inclined teeth 31 are evenly arranged along the circumferential direction. Correspondingly, on the end face of the rotating positioning member 4 facing the fixed positioning member 3, a number of second inclined teeth 41, the same as the number of first inclined teeth 31, are also evenly arranged along the circumferential direction. In a preferred embodiment, the number of both first inclined teeth 31 and second inclined teeth 41 is six. These second inclined teeth 41 and first inclined teeth 31 are kept in a meshing contact with each other under the action of the elastic element. The tooth profile design of the inclined teeth ensures that when the rotating positioning member 4 rotates relative to the fixed positioning member 3, the inclined interaction between the tooth surfaces generates an axial component force.

[0033] To provide an axial force that keeps the rotating positioning member 4 pressed against the fixed positioning member 3, an elastic element is provided in the module. Specifically, on the rotating connecting rod 2, on the side of the fixed positioning member 3 away from the rotating positioning member 4, a stop plate 5 is welded and fixed. A compression spring 6, acting as an elastic element, is installed between the stop plate 5 and the fixed positioning member 3, with its two ends pressing against the back of the stop plate 5 and the fixed positioning member 3, respectively. By adjusting the pre-compression, a suitable engagement pressure can be set.

[0034] In this embodiment, all the internal functional components, including the fixed positioning component 3, the rotating positioning component 4, the abutment plate 5, and the compression spring 6, are housed and hidden in the internal cavity of the fixed outer sleeve 1, which makes the external structure of the entire module simple, compact, and beautiful.

[0035] Regarding module assembly and application: such as Figure 5 As shown, when this flip module is installed on the glasses 100, the fixed outer sleeve 1 is welded to the middle crossbeam of the glasses 100 via its outer surface. The rotating connecting rod 2 extends from both ends of the fixed outer sleeve 1 and is then welded to the inner sides of the left and right frames of the secondary mirror 200, which needs to be flipped. Thus, the secondary mirror 200 is connected to the main body of the glasses 100 in a flip-able manner via this module.

[0036] The working process is as follows: When the user needs to flip the secondary mirror 2 upwards, they manually turn the secondary mirror. The rotation of the secondary mirror will cause the rotating connecting rod 2, which is fixed to it, to rotate together. The rotating connecting rod 2 then drives the rotating positioning component 4, which is fixed to it, to rotate synchronously. Since the fixed positioning component 3 is fixed inside the stationary fixed outer sleeve 1 by rivets 7, the second inclined tooth 41 on the rotating positioning component 4 will slide relative to the first inclined tooth 31 on the fixed positioning component 3. During this sliding process, the interaction of the inclined teeth will generate an axial thrust, forcing the rotating positioning component 4, the rotating connecting rod 2, and the abutment 5 to overcome the elastic force of the compression spring 6 and move slightly axially away from the fixed positioning component 3 (i.e., the direction of the compression spring 6). This movement causes the two rows of inclined teeth to gradually disengage.

[0037] When the secondary mirror rotates to the next preset angle position, the second inclined tooth 41 on the rotating positioning component 4, driven by the rotating connecting rod 2, rotates precisely to the position corresponding to the next set of first inclined teeth 31 adjacent to the fixed positioning component 3. At this time, as the flipping force applied by the user disappears or decreases, the compressed spring 6 begins to release its elastic potential energy. The spring's rebound force pushes the rotating positioning component 4 back against the fixed positioning component 3 through the abutment plate 5 and the rotating connecting rod 2, causing the second inclined tooth 41 to quickly engage with the new first inclined tooth 31. Due to the self-locking effect after the inclined teeth engage and the continuous clamping force applied by the spring, the secondary mirror is stably locked in the flipped position and will not loosen or fall back on its own. Therefore, after the secondary mirror is flipped upwards into place, its position can be automatically fixed.

[0038] When the secondary mirror needs to be retracted, the user applies a downward flipping force, and the above process occurs in reverse. The rotating positioning part 4 moves axially again and passes over the tooth tip, and engages with another set of teeth under the action of the spring, thereby locking the secondary mirror in the retracted state.

[0039] In summary, this invention achieves automatic positioning and locking during the secondary mirror flipping process through the ingenious cooperation of two sets of positioning components with beveled teeth for fixing and rotating, and an elastic component that provides axial clamping force. The structure is compact and reliable, and the operation is clear. Users can achieve stable switching of the secondary mirror position simply by flipping it.

[0040] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A secondary mirror flip module for use in eyewear, characterized by: The utility model relates to a fixing sleeve, a rotating connecting rod, a fixed positioning piece and a rotating positioning piece, the rotating connecting rod is movably arranged in the fixing sleeve, and the two ends of the rotating connecting rod are located outside the fixing sleeve, the rotating positioning piece is fixedly arranged on the rotating connecting rod, the fixed positioning piece is movably arranged on the rotating connecting rod, the fixed positioning piece is fixedly connected in the fixing sleeve, the fixed positioning piece is located on one side of the rotating positioning piece, a plurality of first inclined teeth are arranged on the side of the fixed positioning piece towards the rotating positioning piece, the same number of second inclined teeth as the first inclined teeth are arranged on the side of the rotating positioning piece towards the fixed positioning piece, the second inclined teeth are engaged with the first inclined teeth, and an elastic piece is arranged on the connecting rod to drive the rotating positioning piece to be pressed on the fixed positioning piece.

2. A mirror flipping module for use in eyeglasses according to claim 1, characterized in that: The rotating connecting rod is fixedly connected with a resisting plate on the side of the fixed positioning piece away from the rotating positioning piece, and the elastic piece is located between the resisting plate and the fixed positioning piece.

3. A mirror flipping module for use in eyeglasses according to claim 2, characterized in that: The elastic piece is a compression spring, and the two ends of the compression spring are pressed on the resisting plate and the fixed positioning piece respectively.

4. A mirror flipping module for use in eyeglasses as defined in claim 2, wherein: The fixed positioning piece, the rotating positioning piece, the resisting plate and the elastic piece are all located in the fixing sleeve.

5. A mirror flipping module for use in eyeglasses as defined in claim 1, wherein: The number of the first inclined teeth and the second inclined teeth is six.

6. A mirror flipping module for use in eyeglasses as defined in claim 1, wherein: A rivet hole is radially arranged on the side wall of the fixing sleeve, a fixed hole corresponding to the rivet hole is arranged on the fixed positioning piece, and a rivet is riveted on the rivet hole and inserted into the fixed hole.

7. A mirror flipping module for use in eyeglasses as defined in claim 1, wherein: The outer side wall of the fixing sleeve is hexagonal.

8. A mirror flipping module for use in eyeglasses as claimed in claim 1 or 7, wherein: The fixing sleeve is used for being welded on glasses, and the two ends of the rotating connecting rod are used for being welded on the auxiliary glasses.

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