Military-grade glasses for nearsightedness

Abstract

This utility model discloses a military-grade eyeglass for myopia, comprising a separate main body and a myopia frame. The main body includes a frame, protective lenses, and nose pads. The nose pads have slots, and the frame has protrusions. The slots extend from the side wall near the protective lenses toward the frame to form abutment walls. The bottom of the slots is arc-shaped. The myopia frame includes a fixing part and myopia lenses disposed on both sides of the fixing part. The fixing part includes a limiting surface that contacts the bottom surface of the slot. The surface of the fixing part away from the limiting surface abuts against the surface of the protrusion facing the slot. The fixing part abuts against abutment parts, which are rotatably connected to the protrusions. A torsion spring is provided between the abutment parts and the protrusions. This utility model can ensure that the myopia lenses and protective lenses remain relatively fixed in actual application scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of eyeglasses technology, specifically relating to a military-grade eyeglass for myopia. Background Technology

[0002] Military eyeglasses are specialized eye protection equipment that meets national / international military standards, possessing multi-dimensional protection, environmental adaptability, and tactical compatibility. They are used to protect the eyes of combat personnel from physical impacts, optical damage, and environmental corrosion. To meet the dual needs of nearsighted individuals for eye protection and clear vision when using military eyeglasses, some models consist of a separate main body and a prescription frame. The main body includes the frame, protective lenses, nose pads, temples / straps, etc., while the prescription frame includes the prescription lenses. Currently, the main body and prescription frame are mostly fixed together by snap-fit ​​or magnetic attachment. However, military eyeglasses are often used in scenarios involving rolling, running, and jumping, and snap-fit ​​and magnetic attachment present the following problems: The snap-fit ​​fixation method involves setting a snap-fit ​​component one and a snap-fit ​​part two on the main body and the myopia frame respectively, and using the cooperation of snap-fit ​​component one and snap-fit ​​component two to achieve fixation. This fixation method allows the myopia frame to be adapted to a variety of different frame shapes and sizes; however, in order to facilitate subsequent disassembly and assembly, its fixation effect mostly relies on the friction between snap-fit ​​component one and snap-fit ​​part two. In the case of vigorous movement or frequent movement, the myopia frame and the protective lens are prone to relative displacement, requiring the wearer to make repeated adjustments; Magnetic fixation secures the eyeglasses by attaching magnets and magnetic mating parts to both the frame and the main body, achieving fixation through the interaction of the magnets and mating parts. Compared to snap-fit ​​fixation, magnetic fixation offers superior connection stability. However, it requires a precise match between the installation position and number of the magnetic mating parts and magnets, resulting in frame incompatibility with different frame shapes and limited versatility. Furthermore, magnets may demagnetize, corrode, or crack during long-term use. Since magnets on eyeglasses are often integrated into a single package, frame replacement is necessary when magnets fail, increasing usage and maintenance costs. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a military-grade eyeglass for myopia that ensures a fixed effect and whose frame can be adapted to a variety of different myopia frames.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a military-grade eyeglass for myopia, comprising a main body and a myopia frame, the main body including a frame, protective lenses, and nose pads, the nose pads having a slot, the frame having a protrusion opposite to the slot, the slot extending from the side wall near the protective lens toward the frame to form an abutting wall that abuts against the protective lens, the bottom of the slot being arc-shaped or wavy, the myopia frame including a fixing part that mates with the slot and myopia lenses disposed on both sides of the fixing part, the fixing part including a limiting surface that contacts the bottom surface of the slot, the surface of the fixing part away from the limiting surface abutting against the surface of the protrusion facing the slot, the fixing part having an abutting part abutting against it, the abutting part being rotatably connected to the protrusion, a torsion spring being provided between the abutting part and the protrusion, the abutting part applying a force toward the abutting wall to the fixing part under the action of the torsion spring.

[0005] Using the above method, when installing a myopia frame, first rotate the abutting part away from the protective lens, insert one end of the myopia frame into the slot, and then abut the side of the myopia frame away from the slot against the side of the protrusion facing the slot. At this time, the limiting surface contacts the bottom surface of the slot. After the myopia frame abuts against the protrusion, release the abutting part. Under the action of the torsion spring, the abutting part applies force to the fixing part, causing the part of the fixing part protruding from the slot to abut against the abutting wall.

[0006] This invention ensures that the myopia lens and the protective lens remain relatively fixed in actual application scenarios. After the myopia frame is installed, there is a gap between the myopia lens and the protective lens to prevent the myopia lens from scratching the protective lens. The nose pad has a certain degree of elasticity and deforms during the assembly of the myopia frame, facilitating the assembly. The abutment wall is integrally set with the nose pad and also has a certain degree of elasticity to prevent the abutment wall from scratching the protective lens.

[0007] As a further feature of this invention, the fixing part is provided with a limiting groove on the surface facing away from the protective lens. The limiting groove is a through groove with both ends connected. The abutting part fits against the bottom of the limiting groove under the elastic action of the torsion spring. When the fixing part is inserted into the slot, the slot wall facing the protective lens fits against both the wall and bottom of the limiting groove.

[0008] By adopting the above solution, the limiting groove can prevent relative swaying between the myopia frame and the protective lens in actual application scenarios.

[0009] As a further feature of this utility model, the protrusion is provided with a through hole, the abutting part includes two parallel extension ends, the protrusion is disposed between the two extension ends, the extension ends are provided with a rotating shaft for inserting into the through hole, there are two torsion springs, the torsion springs include a spring part, a torsion arm one and a torsion arm two, the spring part is sleeved on the rotating shaft, the extension ends are provided with an embedding groove one for the spring part to be partially embedded and a mating groove one for the torsion arm one to be embedded, the embedding groove one and the mating groove one are interconnected, the two openings of the through hole are each provided with an embedding groove two for the spring part to be partially embedded and a mating groove two for the torsion arm two to be embedded, the embedding groove two and the mating groove two at the same opening of the through hole are interconnected.

[0010] By adopting the above solution, the elastic effect of the torsion spring is guaranteed.

[0011] As a further feature of this utility model, when the two extension ends share a common rotating shaft, the rotating shaft passes through the through hole, and the extension end is provided with a fixing hole that is interference-fitted with the rotating shaft; when each of the two extension ends is provided with a rotating shaft, the rotating shaft is integrally formed with the extension end.

[0012] The above solution facilitates the assembly of the abutment part and the torsion spring to the protrusion part.

[0013] As a further feature of this invention, the surface of the fixing part away from the limiting surface is concave, and the surface of the protruding part facing the slot is convex, with the convex and concave surfaces having complementary shapes.

[0014] The above solution facilitates the relative fixation of the fixed part and the protruding part.

[0015] As a further feature of this invention, the cross-section of the limiting groove is trapezoidal or square.

[0016] The above solution ensures the limiting effect of the limiting groove.

[0017] As a further feature of this invention, an operating groove is provided on the surface of the abutting portion away from the protrusion.

[0018] The above solution facilitates the assembly or removal of the myopia frame by the operator. When it is necessary to assemble or remove the myopia frame, the fingernail or tool applies force to the abutment part through the operating groove, making it easy to rotate the abutment part.

[0019] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model; Appendix Figure 2 This is a schematic diagram of a myopia frame according to a specific embodiment of the present invention; Appendix Figure 3This is a schematic diagram of the mating part and the rotating shaft in a specific embodiment of the present invention; Appendix Figure 4 This is a schematic diagram of the protrusion and the torsion spring in a specific embodiment of the present invention; Appendix Figure 5 This is a schematic diagram showing the cooperation between the protruding part and the abutting part in a specific embodiment of this utility model; Appendix Figure 6 This is a cross-sectional schematic diagram of a specific embodiment of the present utility model.

[0021] Myopia frame 1, fixing part 11, limiting surface 111, limiting groove 112, concave surface 113, myopia lens 12, frame 2, protrusion 21, through hole 211, second embedding groove 212, second mating groove 213, convex surface 214, protective lens 3, nose pad 4, slot 41, abutting wall 42, abutting part 5, extension end 51, fixing hole 52, first embedding groove 53, first mating groove 54, operating groove 55, torsion spring 6, spring part 61, first torsion arm 62, second torsion arm 63, rotating shaft 7. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise specified, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Specific embodiments of this utility model are shown in the accompanying drawings.

[0025] A type of military-grade eyeglasses for nearsightedness includes a separate main body and a nearsightedness frame 1. The main body includes a frame 2, a protective lens 3, and a nose pad 4. The nose pad 4 has a slot 41. The frame 2 has a protrusion 21 opposite to the slot 41. The side wall of the slot 41 near the protective lens 3 extends toward the frame 2 to form an abutment wall 42 that abuts against the protective lens 3. The bottom of the slot 41 is arc-shaped. The nearsightedness frame 1 includes a fixing part 11 that cooperates with the slot 41 and nearsightedness lenses 12 disposed on both sides of the fixing part 11. The fixing part 11 includes a limiting surface 111 that contacts the bottom surface of the slot 41. One end of the fixing part 11 away from the limiting surface 111 abuts against the surface of the protrusion 21 facing the slot 41. An abutment part 5 abuts against the fixing part 11. The abutment part 5 is rotatably connected to the protrusion 21. A torsion spring 6 is provided between the abutment part 5 and the protrusion 21. Under the action of the torsion spring 6, the abutment part 5 applies a force to the fixing part 11 toward the abutment wall 42.

[0026] When installing the myopia frame 1, first rotate the abutting part 5 away from the protective lens 3, insert one end of the myopia frame 1 into the slot 41, and then abut the end of the myopia frame 1 away from the slot 41 against the surface of the protrusion 21 facing the slot 41. At this time, the limiting surface 111 contacts the bottom surface of the slot 41. After the myopia frame 1 abuts against the protrusion 21, release the abutting part 5. Under the action of the torsion spring 6, the abutting part 5 applies force to the fixing part 11, causing the part of the fixing part 11 protruding from the slot 41 to abut against the abutting wall 42.

[0027] This embodiment ensures that the myopia lens 12 and the protective lens 3 remain relatively fixed in actual application scenarios. After the myopia frame 1 is installed, there is a gap between the myopia lens 12 and the protective lens 3 to prevent the myopia lens 12 from scratching the protective lens 3. The nose pad 4 has a certain degree of elasticity and undergoes a certain deformation during the assembly of the myopia frame 1, which facilitates the assembly of the myopia frame 1. The abutment wall 42 is integrally set with the nose pad 4 and also has a certain degree of elasticity, which can prevent the abutment wall 42 from scratching the protective lens 3.

[0028] The fixing part 11 has a limiting groove 112 on the side facing away from the protective lens 3. The limiting groove 112 is a through groove with both ends connected. The abutting part 5 fits against the bottom of the limiting groove 112 under the elastic action of the torsion spring 6. When the fixing part 11 is inserted into the slot 41, the slot wall facing the protective lens 3 fits against both the slot wall and the bottom of the limiting groove 112. The limiting groove 112 can prevent relative swinging between the myopia frame 1 and the protective lens 3 in actual application scenarios.

[0029] The protrusion 21 has a through hole 211, and the abutting part 5 includes two parallel extension ends 51. The protrusion 21 is disposed between the two extension ends 51. In this embodiment, a rotating shaft 7 passes through the through hole 211, and the two extension ends 51 have fixing holes 52 for the two ends of the rotating shaft 7 to pass through. The fixing holes 52 are interference-fitted with the rotating shaft 7. There are two torsion springs 6, each including a spring part 61, a first torsion arm 62, and a second torsion arm 63. The spring part 61 is sleeved on the rotating shaft 7. The extension ends 51 have an embedding groove 53 for the spring part 61 to be partially embedded and a mating groove 54 for the first torsion arm 62 to be embedded. The first embedding groove 53 and the first mating groove 54 are interconnected. The two openings of the through hole 211 each have an embedding groove 212 for the spring part 61 to be partially embedded and a mating groove 213 for the second torsion arm 63 to be embedded. The second embedding groove 212 and the second mating groove 213 at the opening of the same through hole 211 are interconnected. Ensure the elastic effect of torsion spring 6.

[0030] In this embodiment, during assembly, first place the two torsion springs 6 into the two extension ends 51 respectively, then move the extension ends 51 so that the torsion springs 6 are positioned between the extension ends 51 and the protrusion 21. At this time, the two ends of the spring part 61 are respectively located in the first embedding groove 53 and the second embedding groove 212, so that the first torsion arm 62 is located in the first mating groove 54 and the second torsion arm 63 is located in the second mating groove 213. Then, insert the rotating shaft 7 through the fixing hole 52 of any one of the extension ends 51, so that the rotating shaft 7 passes through one spring part 61 and then through the through hole 211, then through another spring part 61, and finally inserts it into the fixing hole 52 of the other extension end 51 to complete the assembly. After the abutting part 5 and the torsion spring 6 are assembled to the protrusion 21, the protective lens 3 with the nose pad 4 is then fixed to the frame 2.

[0031] The surface of the fixing part 11 away from the limiting surface 111 is a concave surface 113, and the surface of the protrusion 21 facing the slot 41 is a convex surface 214. The shapes of the convex surface 214 and the concave surface 113 are complementary. This facilitates the fixing part 11 and the protrusion 21 to remain relatively fixed.

[0032] The cross-section of the limiting groove 112 is trapezoidal to ensure the limiting effect of the limiting groove 112.

[0033] An operating groove 55 is provided on the surface of the abutment 5 away from the protrusion 21. This facilitates the installation or removal of the myopia frame 1 by the operator. When it is necessary to install or remove the myopia frame 1, the fingernail or tool applies force to the abutment 5 through the operating groove 55, making it easy to rotate the abutment 5.

[0034] This utility model is not limited to the specific embodiments described above. Those skilled in the art can implement this utility model using other specific embodiments based on the content disclosed in this utility model. Any simple changes or modifications made to the design structure and concept of this utility model will fall within the protection scope of this utility model.

Claims

1. A type of military-grade eyeglasses for nearsightedness, comprising a separate main body and a nearsighted frame, wherein the main body includes a frame, protective lenses, and nose pads, characterized in that: The nose pad has a slot, and the frame has a protrusion opposite to the slot. The slot extends from the side wall near the protective lens into the frame to form an abutment wall that abuts against the protective lens. The bottom of the slot is arc-shaped or wavy. The myopia frame includes a fixing part that mates with the slot and myopia lenses disposed on both sides of the fixing part. The fixing part includes a limiting surface that contacts the bottom surface of the slot. The surface of the fixing part away from the limiting surface abuts against the surface of the protrusion facing the slot. An abutment part abuts against the fixing part. The abutment part is rotatably connected to the protrusion. A torsion spring is provided between the abutment part and the protrusion. Under the action of the torsion spring, the abutment part applies a force to the fixing part toward the abutment wall.

2. The military-grade glasses for myopia according to claim 1, characterized in that: The fixing part has a limiting groove on the side facing away from the protective lens. The limiting groove is a through groove with both ends. The abutting part fits against the bottom of the limiting groove under the elastic action of the torsion spring. When the fixing part is inserted into the slot, the slot wall facing the protective lens fits against both the slot wall and the bottom of the limiting groove.

3. The military-grade glasses for myopia according to claim 2, characterized in that: The protrusion has a through hole, and the abutting part includes two parallel extension ends. The protrusion is disposed between the two extension ends. The extension ends are provided with a rotating shaft for inserting into the through hole. There are two torsion springs, each including a spring part, a torsion arm one, and a torsion arm two. The spring part is sleeved on the rotating shaft. The extension ends are provided with an embedding groove one for the spring part to be partially embedded and a mating groove one for the torsion arm one to be embedded. The embedding groove one and the mating groove one are interconnected. The two openings of the through hole are each provided with an embedding groove two for the spring part to be partially embedded and a mating groove two for the torsion arm two to be embedded. The embedding groove two and the mating groove two at the same opening of the through hole are interconnected.

4. A military-grade eyeglass for nearsightedness according to claim 3, characterized in that: When the two extension ends share a common shaft, the shaft passes through the through hole, and the extension end is provided with a fixing hole that is interference-fitted with the shaft; when the two extension ends are each provided with a shaft, the shaft is integrally formed with the extension end.

5. A type of military-grade eyeglasses for myopia according to claim 4, characterized in that: The surface of the fixing part away from the limiting surface is concave, and the surface of the protrusion facing the slot is convex. The shapes of the convex and concave surfaces are complementary.

6. A type of military-grade eyeglasses for myopia according to claim 2 or 5, characterized in that: The cross-section of the limiting groove is trapezoidal or square.

7. A military-grade eyeglass for nearsightedness according to claim 6, characterized in that: An operating groove is provided on the surface of the abutment portion away from the protrusion.

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