An inverted ventilation structure and ski goggles

Abstract

The utility model provides a kind of turnover ventilation structure and skiing glasses, wherein, turnover ventilation structure includes turnover main body piece, first limit stopper, clamping shaft and second limit stopper;When using, in initial state, lens is attached on lens support;In skiing process, if fog is generated in lens inside, turnover main body piece can be pushed outward, make it drive lens slightly separate from lens support, form gap, external air can enter lens inside, promote fog to dissipate;If fog is still not completely eliminated, turnover main body piece can be continuously pushed outward, make it drive lens further away from lens support, form larger gap, so that external air more fully enters lens inside, to effectively eliminate fog.The utility model discloses turnover ventilation structure, can form controllable gap between lens and lens support, introduce external air to eliminate lens inside fog, to effectively avoid lens fogging, ensure that user visual field is clear, improve the safety of skiing.

Description

Technical Field

[0001] This utility model relates to the field of ski goggles technology, specifically to a flip-up breathable structure and ski goggles. Background Technology

[0002] Skiing has become a popular recreational activity. However, while enjoying the thrill of skiing, skiers are often exposed to unique natural environments: the snow surface reflects a large amount of sunlight, resulting in high light intensity that can easily cause visual fatigue and even glare; furthermore, during high-speed skiing, the continuous impact of cold wind on the eyes not only causes discomfort but may also irritate and potentially damage them. Therefore, wearing professional ski goggles is an important measure to protect the eyes and enhance the skiing experience.

[0003] Chinese patent document CN212853805U discloses a ski goggle, including a frame and an adhesive adjustment assembly. A disassembly assembly is located inside the frame, and a protective pad is adhesively fixed to one side of the frame. A side connecting strip is located on the other side of the frame, with a pre-drilled groove inside. The adhesive adjustment assembly is located inside the pre-drilled groove, and an elastic strip is connected to one side of the assembly. The ski goggle uses a first locking groove to secure the lens to the inside of the frame, and a second locking groove to secure the sealing strip to both sides of the inside of the frame. Connecting screws pass through the sealing strip and the frame to fix the lens in place. This structure allows for flexible lens replacement, enabling continued use of the ski goggle even when the lens is worn, improving its cost-effectiveness. Furthermore, the elastic strip can be used to secure the ski goggle to the user's head during wear.

[0004] The aforementioned technical solution uses a first locking slot to secure the lens to the inside of the eyeglass frame, and a second locking slot to secure the sealing strip to both sides of the inside of the eyeglass frame. A connecting screw passes through the sealing strip and the inside of the eyeglass frame, thus fixing the lens in place. This structure also allows for flexible lens replacement. The advantage of this technical solution is that it allows for flexible lens replacement, enabling continued use of the ski goggles even when the lenses are worn, thus improving the cost-effectiveness of using ski goggles. However, in actual use, due to the low temperature of the ski resort environment and the higher temperature of the wearer's face, the significant temperature difference easily causes fogging to form on the inside of the lenses. This not only affects visual clarity but also causes discomfort and poses certain safety hazards; the aforementioned technical solution does not solve this problem.

[0005] Therefore, how to design a flip-up ventilated structure that can effectively prevent fogging, ensure clear visibility, and ensure safe use is a technical problem that has not yet been solved in the existing technology. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects of existing ski goggles, which are prone to fogging on the inside of the lens during use, affecting the clarity of vision and bringing certain safety hazards. In this way, a flip-up ventilated structure that can effectively prevent fogging, ensure clear vision and safe use is provided.

[0007] This invention also provides ski goggles with a flip-up ventilation structure.

[0008] Therefore, this utility model provides a flip-over breathable structure, comprising: The main body component has a limiting opening, and the bottom surface is formed with a limiting plane limiting opening, an elastic buckle limiting opening fixedly disposed in the middle of the limiting plane limiting opening, and limiting surface limiting openings respectively formed on both sides of the elastic buckle limiting opening; the limiting plane limiting opening and the limiting surface limiting opening are perpendicular to each other. There are two first limiting blocks and limiting openings, which are suitable for being formed on the lens holder limiting openings at a certain distance apart. A first flip-limiting surface limiting opening is formed on the inner side of the first limiting block limiting opening. A first transition edge limiting opening is formed between the first flip-limiting surface limiting opening and the top surface of the first limiting block limiting opening. The snap-fit ​​shaft limiting opening is fixedly disposed between the limiting openings of the two first limiting blocks; the limiting opening of the flip-up main body is flip-fitted and snap-fitted onto the limiting opening of the snap-fit ​​shaft through the elastic snap-fit ​​limiting opening; The vertical distance between the portion of the first transition edge limiting opening that is in rotational contact with the limiting plane limiting opening and the center axis of the snap-fit ​​shaft limiting opening is a, and the vertical distance between the portion of the first flipping limiting surface limiting opening that is in rotational contact with the limiting plane limiting opening and the center axis of the snap-fit ​​shaft limiting opening is b, and a > b. There are two second limiting block limiting openings, which are adapted to be formed on the lens holder limiting opening respectively, and are respectively located outside the two first limiting block limiting openings. A second flip limiting surface limiting opening is formed on the outer side of the second limiting block limiting opening. A transition plane limiting opening is formed between the second flip limiting surface limiting opening and the top surface of the second limiting block limiting opening. A second transition edge limiting opening is formed between the second flip limiting surface limiting opening and the transition plane limiting opening. The vertical distance between the portion of the second transition edge limiting opening that is in rotational contact with the limiting surface limiting opening and the central axis of the snap-fit ​​shaft limiting opening is c; the distance between the portion of the second flipping limiting surface limiting opening that is in contact with the limiting surface limiting opening and the central axis of the snap-fit ​​shaft limiting opening is d; and c>d. When the limiting opening of the flipping main body is snapped onto the limiting opening of the snapping shaft, it has an initial state, a first flipping state after the first flip, and a second flipping state after the second flip. In the initial state, the two limiting surface limiting openings are respectively in abutting contact with the two second flipping limiting surface limiting openings; Upon initial flipping, the limiting surface limiting opening follows the limiting opening of the flipping main component, flipping upwards around the snap-fit ​​shaft limiting opening along the second flipping limiting surface limiting opening. When passing the second transition edge limiting opening, the elastic buckle limiting opening undergoes initial deformation until it flips to the point where the limiting surface limiting opening is opposite to the transition plane limiting opening. At this time, the limiting plane limiting opening contacts the top surface of the first limiting block limiting opening. When flipped again, the limiting plane limiting opening follows the limiting opening of the flipping main body component around the locking shaft limiting opening and flips downward from the top of the first limiting block limiting opening to the first flipping limiting surface limiting opening. When passing the first transition edge limiting opening, the elastic buckle limiting opening deforms again until it flips to the point where the limiting plane limiting opening and the first flipping limiting surface limiting opening are in abutting contact.

[0009] As a preferred embodiment, the first transition edge limiting opening is a smoothly transitioning arc surface structure.

[0010] As a preferred embodiment, the second transition edge limiting opening is a smoothly transitioning arc surface structure.

[0011] As a preferred embodiment, the flip-up main body is adapted to be detachably installed with the lens connector via a detachable mounting structure; The detachable installation structure includes: The first mounting shaft is fixedly disposed at one end of the flipping main body component; The second mounting shaft is telescopically mounted on the other end of the flip-up main body; the flip-up main body is detachably mounted to the lens connector via the first mounting shaft and the second mounting shaft.

[0012] As a preferred embodiment, the second mounting shaft is telescopically mounted on the other end of the flipping main body via the first mounting structure; The first mounting structure includes: The mounting cavity is formed at the bottom of the flip-up main body and has a bottom opening; A telescopic through hole is provided at the other end of the flip-up main body and communicates with the mounting cavity; The second mounting shaft is telescopically mounted in the mounting cavity, and the free end of the second mounting shaft has an extended state extending to the outside of the mounting cavity through the telescopic through hole, and a retracted state retracting into the mounting cavity through the telescopic through hole; It also includes a mounting base shell, which is detachably mounted at the bottom opening of the mounting cavity and is capable of confining the second mounting shaft within the mounting cavity.

[0013] As a preferred embodiment, the second mounting shaft includes: The middle main body section is able to slide in contact with the inner wall of the mounting cavity, and the outer diameter of the end facing the telescopic through hole is larger than the inner diameter of the telescopic through hole; The telescopic section, formed at one end of the central main body section facing the telescopic through hole, can extend along the telescopic through hole to the outside of the mounting cavity, or retract into the telescopic through hole; A connecting segment is formed at the other end of the central main body segment.

[0014] As a preferred embodiment, the second mounting shaft is telescopically mounted within the mounting cavity via a telescopic structure; The telescopic structure includes: The mounting post is fixedly installed on the inner wall of the mounting cavity facing the end of the connecting section; An elastic element is installed inside the mounting cavity, with one end sleeved on the mounting post and the other end sleeved on the connecting section.

[0015] As a preferred embodiment, it also includes an operating structure for controlling the telescopic movement of the second mounting shaft; The operational structure includes: The operating lever is formed on the central main body section of the second mounting shaft; A limiting opening is formed on the mounting base; the operating rod extends through the limiting opening to the outside of the flipping main body and can move back and forth along the limiting opening under the action of external force, thereby controlling the telescopic movement of the second mounting shaft.

[0016] As a preferred embodiment, the mounting base is detachably mounted at the bottom opening of the mounting cavity via a second mounting structure; The second mounting structure includes: The first snap-fit ​​opening is two in number, which are opened at a certain distance on one side wall of the mounting cavity; The second snap-fit ​​opening is formed on the other side wall of the mounting cavity; The first locking claw, consisting of two, is formed on the side of the mounting base opposite to the first locking opening; The second snap-fit ​​claw is formed on the side of the mounting base opposite to the second snap-fit ​​opening; The first locking claw can be matched and engaged with the first locking opening, and the second locking claw can be matched and engaged with the second locking opening, thereby detachably locking the mounting base shell to the bottom of the mounting cavity.

[0017] This utility model also provides ski goggles with a flip-up ventilation structure, including: a frame body, a face-fitting sponge pad, an adjustable headband, a lens holder, a lens, and a flip-up ventilation structure; the flip-up ventilation structure is any one of the flip-up ventilation structures described above; the face-fitting sponge pad is adhesively connected to the inner side of the frame body, the two ends of the adjustable headband are respectively fixedly connected to the two ends of the frame body, the lens holder is detachably installed on the outer side of the frame body, the flip-up ventilation structure is detachably installed on the lens holder, and the lens is detachably installed on the flip-up ventilation structure; The first limiting block and the second limiting block are formed at both ends of the lens holder; there are two lens connectors, which are respectively fixedly connected to both ends of the lens; the bottom surface of the lens connector is formed with an installation opening, and the inner walls on both sides of the installation opening are provided with installation through holes; the first mounting shaft and the second mounting shaft can be matched and installed with the installation through holes, so as to detachably install the flip-up main body and the lens together.

[0018] The technical solution provided by this utility model has the following advantages: The present invention discloses a flip-up ventilated structure comprising a flip-up main body, a first limiting block, a snap-fit ​​shaft, and a second limiting block. The bottom surface of the flip-up main body is formed with a limiting plane, an elastic buckle fixedly disposed in the center of the limiting plane, and limiting surfaces respectively formed on both sides of the elastic buckle. The limiting plane and the limiting surfaces are perpendicular to each other. Two first limiting blocks are provided, suitable for being formed on the lens holder at a certain distance apart. A first flip-up limiting surface is formed on the inner side of each first limiting block. A first transition edge is formed between the first flip-up limiting surface and the top surface of the first limiting block. The snap-fit ​​shaft is fixedly disposed between the two first limiting blocks. The flip-up main body is flip-up and snap-fitted onto the snap-fit ​​shaft via the elastic buckle. Two second limiting blocks are provided, suitable for being formed on the lens holder respectively, and located on the outer sides of the two first limiting blocks. A second flip-up limiting surface is formed on the outer side of each second limiting block. A transition plane is formed between the second flip-up limiting surface and the top surface of the second limiting block. A second transition edge is formed between the second flip-up limiting surface and the transition plane.

[0019] When wearing ski goggles equipped with the flip-up ventilated structure of this utility model, in the initial state, the two limiting surfaces are in abutting contact with the two second flip-up limiting surfaces, so that the lens fits against the lens holder. During skiing, if fogging occurs on the inner side of the lens due to the temperature difference between the inside and outside, the flip-up main body can be turned outward to switch it from the initial state to the first flip-up state. At this time, the limiting surfaces follow the flip-up main body to flip upward around the locking shaft along the second flip-up limiting surfaces. When passing the second transition edge, the elastic buckle undergoes its first deformation until it flips until the limiting surfaces are opposite to the transition plane, and at the same time, the limiting plane contacts the top surface of the first limiting block. The flip-up main body then drives the... The lens slightly detaches from the lens holder, creating a gap that allows external air to enter the inside of the lens, promoting fog dissipation. If the fog is still not completely eliminated, the flipping main body can be pushed outward to enter the second flipping state. In this state, the limiting plane follows the flipping main body around the locking shaft, flipping downward from the top of the first limiting block to the first flipping limiting surface. When passing the first transition edge, the elastic buckle deforms again until it flips to the point where the limiting plane and the first flipping limiting surface are in contact. At this time, the flipping main body moves the lens further away from the lens holder, creating a larger gap that allows more external air to enter the inside of the lens, thereby effectively eliminating fog.

[0020] The flip-out ventilated structure of this invention can create a controllable gap between the lens and the lens holder, allowing external air to be introduced to eliminate fogging on the inside of the lens, thereby effectively preventing the lens from fogging up, ensuring clear vision for the user, and improving the safety of skiing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the prior art or specific embodiments of this utility model, the accompanying drawings used in the description of the prior art or specific embodiments are briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the overall structure of the flip-over breathable structure of this utility model.

[0023] Figure 2 yes Figure 1 Another stereoscopic view.

[0024] Figure 3 yes Figure 2 Structural diagram before assembly.

[0025] Figure 4 yes Figure 1 A schematic diagram of the structure of the central flip-over main component.

[0026] Figure 5 yes Figure 4 A schematic diagram of the explosion structure.

[0027] Figure 6 yes Figure 5Another stereoscopic view.

[0028] Figure 7 yes Figure 1 A schematic diagram of the structure of the second mounting shaft.

[0029] Figure 8 This is a schematic diagram of another utility model of ski goggles with a flip-up ventilation structure.

[0030] Figure 9 yes Figure 8 Another stereoscopic view.

[0031] Figure 10 yes Figure 9 Enlarged structural diagram of part A.

[0032] Figure 11 yes Figure 8 A schematic diagram of the explosion structure.

[0033] Figure 12 Figure 11 Enlarged structural diagram of section B.

[0034] Reference numerals: 1. Flip-over main body; 11. Limiting plane; 12. Elastic buckle; 14. Limiting surface; 2. First limiting block; 21. First flip-over limiting surface; 22. Snap-fit ​​shaft; 3. Second limiting block; 31. Second flip-over limiting surface; 32. Transition plane; 33. Second transition edge; 35. First transition edge; 41. First mounting shaft; 42. Second mounting shaft; 43. Middle main body section; 44. Telescopic section; 45. Connecting section; 5. Mounting cavity; 51. Telescopic through hole; 52. Mounting bottom shell; 53. Mounting column; 54. Elastic element; 6. Operating rod; 61. Limiting opening; 71. First snap-fit ​​opening; 72. Second snap-fit ​​opening; 73. First snap-fit ​​claw; 74. Second snap-fit ​​claw; 8. Lens holder; 9. Lens; 91. Lens connector; 92. Mounting opening; 93. Mounting through hole. Detailed Implementation

[0035] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0036] It should be noted that the terms "first," "second," etc., in the claims and specification of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not limited to those steps or units explicitly listed, but may also include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0037] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0038] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0039] This embodiment provides a flip-up breathable structure, such as Figure 1-4As shown, it includes: a flip-up main body 1, a first limiting block 2, a snap-fit ​​shaft 22, and a second limiting block 3; wherein, the bottom surface of the flip-up main body 1 is formed with a limiting plane 11, an elastic buckle 12 fixedly disposed in the middle of the limiting plane 11, and limiting surfaces 14 respectively formed on both sides of the elastic buckle 12; the limiting plane 11 and the limiting surface 14 are perpendicular to each other; there are two first limiting blocks 2, which are suitable for being formed on the lens holder 8 at a certain distance apart, and the inner side of the first limiting block 2 is formed with a first flip-up limiting surface 21; a first transition edge 35 is formed between the first flip-up limiting surface 21 and the top surface of the first limiting block 2; the snap-fit ​​shaft 22 is fixedly disposed between the two first limiting blocks 2; the flip-up main body 1 is flip-able snap-fitted onto the snap-fit ​​shaft 22 by the elastic buckle 12; the portion of the first transition edge 35 that is used for rotating contact with the limiting plane 11 is at a distance from the first limiting plane 11. The vertical distance from the center axis of the snap-fit ​​shaft 22 is a, and the vertical distance from the portion of the first flip-limiting surface 21 that is in rotational contact with the limiting plane 11 to the center axis of the snap-fit ​​shaft 22 is b, and a > b; there are two second limiting blocks 3, which are adapted to be formed on the lens holder 8 respectively, and are located outside the two first limiting blocks 2 respectively. The outer surface of the second limiting block 3 is formed with a second flip-limiting surface 31, and a transition plane 32 is formed between the second flip-limiting surface 31 and the top surface of the second limiting block 3. A second transition edge 33 is formed between the second flip-limiting surface 31 and the transition plane 32; the vertical distance from the portion of the second transition edge 33 that is in rotational contact with the limiting surface 14 to the center axis of the snap-fit ​​shaft 22 is c, and the distance from the portion of the second flip-limiting surface 31 that is in contact with the limiting surface 14 to the center axis of the snap-fit ​​shaft 22 is d, and c > d.

[0040] When wearing ski goggles equipped with the flip-up ventilation structure of this embodiment, in the initial state, the two limiting surfaces 14 respectively maintain abutting contact with the two second flip-up limiting surfaces 31, so that the lens 9 is attached to the lens holder 8; during skiing, if fog forms on the inside of the lens 9 due to the temperature difference between the inside and outside, the flip-up main body 1 can be pushed outward to switch it from the initial state to the first flip state; at this time, the limiting surface 14 follows the flip-up main body 1 to flip upward around the snap-fit ​​shaft 22 along the second flip-up limiting surface 31. When passing the second transition edge 33, the elastic buckle 12 undergoes its first deformation until it flips until the limiting surface 14 is opposite to the transition plane 32, and at the same time the limiting plane 11 contacts the top surface of the first limiting block 2, and the flip-up main body 1... The lens 9 is slightly disengaged from the lens holder 8, creating a gap that allows external air to enter the inside of the lens 9, promoting fog dissipation. If the fog is not completely eliminated, the flipping main body 1 can be pushed outward to enter the second flipping state. In this state, the limiting plane 11 follows the flipping main body 1 and flips downward from the top of the first limiting block 2 to the first flipping limiting surface 21 around the snap-fit ​​shaft 22. When it passes the first transition edge 35, the elastic buckle 12 deforms again until it flips to the point where the limiting plane 11 and the first flipping limiting surface 21 are in contact. At this time, the flipping main body 1 moves the lens 9 further away from the lens holder 8, creating a larger gap that allows external air to enter the inside of the lens 9 more fully, thereby effectively eliminating fog.

[0041] The flip-out ventilated structure of this embodiment enables a controllable gap to be formed between the lens 9 and the lens holder 8, allowing external air to be introduced to eliminate fogging on the inside of the lens 9, thereby effectively preventing fogging of the lens 9, ensuring clear vision for the user, and improving the safety of skiing.

[0042] The first transition edge 35 is a smoothly transitioning arc surface structure, which allows the flipping main body 1 to smoothly slide through the transition area when flipping, avoiding jamming.

[0043] The second transition edge 33 is a smoothly transitioning arc surface structure, which allows the flipping main body 1 to smoothly slide through the transition area when flipping, avoiding jamming.

[0044] The flip-up main body 1 is adapted to be detachably installed with the lens connector 91 via a detachable mounting structure; the detachable mounting structure includes a first mounting shaft 41 and a second mounting shaft 42; wherein, the first mounting shaft 41 is fixedly disposed at one end of the flip-up main body 1; the second mounting shaft 42 is telescopically installed at the other end of the flip-up main body 1; the flip-up main body 1 is detachably installed with the lens connector 91 via the first mounting shaft 41 and the second mounting shaft 42.

[0045] like Figure 5-6As shown, the second mounting shaft 42 is telescopically mounted on the other end of the flip-up main body 1 via a first mounting structure; the first mounting structure includes a mounting cavity 5 and a telescopic through hole 51; wherein, the mounting cavity 5 is formed at the bottom of the flip-up main body 1 and has a bottom opening; the telescopic through hole 51 is opened at the other end of the flip-up main body 1 and communicates with the mounting cavity 5; the second mounting shaft 42 is telescopically mounted in the mounting cavity 5, and the free end of the second mounting shaft 42 has an extended state extending to the outside of the mounting cavity 5 through the telescopic through hole 51, and a retracted state retracting into the mounting cavity 5 through the telescopic through hole 51; it also includes a mounting bottom shell 52, which is detachably mounted at the bottom opening position of the mounting cavity 5, and can limit the second mounting shaft 42 within the mounting cavity 5.

[0046] like Figure 7 As shown, the second mounting shaft 42 includes a central main body section 43, a telescopic section 44, and a connecting section 45; wherein, the central main body section 43 is capable of sliding contact with the inner wall of the mounting cavity 5, and the outer diameter of one end facing the telescopic through hole 51 is larger than the inner diameter of the telescopic through hole 51; the telescopic section 44 is formed at one end of the central main body section 43 facing the telescopic through hole 51, and can extend along the telescopic through hole 51 to the outside of the mounting cavity 5, or retract into the telescopic through hole 51; the connecting section 45 is formed at the other end of the central main body section 43.

[0047] The second mounting shaft 42 is retractably mounted within the mounting cavity 5 via a telescopic structure. The telescopic structure includes a mounting post 53 and an elastic element 54. The mounting post 53 is fixedly disposed on the inner wall of the mounting cavity 5 at the end facing the connecting section 45. The elastic element 54 is mounted within the mounting cavity 5, with one end sleeved on the mounting post 53 and the other end sleeved on the connecting section 45. When the second mounting shaft 42 is subjected to external force, it compresses the elastic element 54 and retracts into the mounting cavity 5 through the telescopic through-hole 51. When the external force is removed, the elastic element 54 elastically pushes the second mounting shaft 42 to extend to the outside of the mounting cavity 5 through the telescopic through-hole 51.

[0048] It also includes an operating structure for controlling the telescopic movement of the second mounting shaft 42. The operating structure includes an operating lever 6 and a limiting opening 61. The operating lever 6 is formed on the middle main body section 43 of the second mounting shaft 42. The limiting opening 61 is formed on the mounting base 52. The operating lever 6 extends through the limiting opening 61 to the outside of the flipping main body 1 and can move back and forth along the limiting opening 61 under the action of external force, thereby controlling the telescopic movement of the second mounting shaft 42. When it is necessary for the second mounting shaft 42 to retract into the mounting cavity 5, the operating lever 6 can be manually moved to drive the second mounting shaft 42 to overcome the force of the elastic member 54 and retract into the mounting cavity 5.

[0049] The mounting base 52 is detachably mounted on the bottom opening of the mounting cavity 5 via a second mounting structure. The second mounting structure includes a first snap-fit ​​opening 71, a second snap-fit ​​opening 72, a first snap-fit ​​claw 73, and a second snap-fit ​​claw 74. Two first snap-fit ​​openings 71 are provided on one side wall of the mounting cavity 5, spaced a certain distance apart. The second snap-fit ​​opening 72 is provided on the other side wall of the mounting cavity 5. Two first snap-fit ​​claws 73 are formed on the side of the mounting base 52 opposite to the first snap-fit ​​opening 71. The second snap-fit ​​claw 74 is formed on the side of the mounting base 52 opposite to the second snap-fit ​​opening 72. The first snap-fit ​​claw 73 can engage with the first snap-fit ​​opening 71, and the second snap-fit ​​claw 74 can engage with the second snap-fit ​​opening 72, thereby detachably snapping the mounting base 52 onto the bottom of the mounting cavity 5. Example 2

[0050] This embodiment provides ski goggles with a flip-up ventilated structure, such as Figure 8-12 As shown, the device includes a frame body, a face-fitting sponge pad, an adjustable headband, a lens holder 8, a lens 9, and a flip-up breathable structure. The flip-up breathable structure is the same as that described in Example 1. The face-fitting sponge pad is bonded to the inner side of the frame body. The two ends of the adjustable headband are fixedly connected to the two ends of the frame body. The lens holder 8 is detachably mounted on the outer side of the frame body. The flip-up breathable structure is detachably mounted on the lens holder 8, and the lens 9 is detachably mounted on the flip-up breathable structure. The first limiting block 2 and the second limiting block 3 are formed at both ends of the lens holder 8. There are two lens connectors 91, which are fixedly connected to both ends of the lens 9. The bottom surface of the lens connector 91 has an installation opening 92, and the inner walls on both sides of the installation opening 92 have installation through holes 93. The first mounting shaft 41 and the second mounting shaft 42 can be matched and installed with the installation through holes 93, thereby detachably mounting the flip-up body 1 and the lens 9 together.

[0051] Before wearing the ski goggles of this embodiment, the flip-up main body 1 is first attached to the snap-fit ​​shaft 22 of the lens holder 8 by means of the elastic buckle 12; the operating lever 6 is turned by hand to drive the second mounting shaft 42 to retract into the mounting cavity 5, and the first mounting shaft 41 is installed into the mounting through hole 93 on one side. Then the flip-up main body 1 is moved so that the telescopic through hole 51 is aligned with the mounting through hole 93 on the other side; the operating lever 6 is released, and under the elastic push of the elastic member 54, the second mounting shaft 42 extends and inserts into the mounting through hole 93, thereby installing the flip-up main body 1 and the lens 9 together. During skiing, if fog forms on the inside of the lens 9 due to the temperature difference between the inside and outside, the flipping main body 1 can be moved outward to switch it from the initial state to the first flipping state. At this time, the limiting surface 14 follows the flipping main body 1 and flips upward around the snap-fit ​​shaft 22 along the second flipping limiting surface 31. When passing the second transition edge 33, the elastic buckle 12 undergoes its first deformation until it flips until the limiting surface 14 is opposite to the transition plane 32. At the same time, the limiting plane 11 contacts the top surface of the first limiting block 2. The flipping main body 1 causes the lens 9 to slightly detach from the lens holder 8, forming a gap, allowing external air to enter the inside of the lens 9 and promote... The fog dissipates; if the fog is not completely eliminated, the flipping main body 1 can be pushed outward to enter the second flipping state. In this state, the limiting plane 11 follows the flipping main body 1 and flips downward from the top of the first limiting block 2 to the first flipping limiting surface 21 around the snap-fit ​​shaft 22. When it passes the first transition edge 35, the elastic buckle 12 deforms again until it flips to the point where the limiting plane 11 and the first flipping limiting surface 21 are in abutting contact. At this time, the flipping main body 1 drives the lens 9 further away from the lens holder 8, forming a larger gap, allowing external air to enter the inside of the lens 9 more fully, thereby effectively eliminating the fog.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A reversible breathable structure, characterized in that, include: The main body (1) is flipped over, and the bottom surface is formed with a limiting plane (11), an elastic buckle (12) fixedly disposed in the middle of the limiting plane (11), and limiting surfaces (14) respectively formed on both sides of the elastic buckle (12); the limiting plane (11) and the limiting surface (14) are perpendicular to each other; There are two first limiting blocks (2), which are suitable for being formed on the lens holder (8) at a certain distance apart. The inner side of the first limiting block (2) is formed with a first flip limiting surface (21); a first transition edge (35) is formed between the first flip limiting surface (21) and the top surface of the first limiting block (2). The snap-fit ​​shaft (22) is fixedly disposed between the two first limiting blocks (2); the flip-up main body (1) is flip-fitted and snap-fitted onto the snap-fit ​​shaft (22) by means of the elastic buckle (12); The vertical distance a of the portion of the first transition edge (35) that is in rotational contact with the limiting plane (11) from the central axis of the snap-fit ​​shaft (22) is a, and the vertical distance b of the portion of the first flipping limiting surface (21) that is in rotational contact with the limiting plane (11) from the central axis of the snap-fit ​​shaft (22) is b, and a > b; There are two second limiting blocks (3), which are adapted to be formed on the lens holder (8) respectively and are located on the outside of the two first limiting blocks (2). The outer side of the second limiting block (3) is formed with a second flip limiting surface (31). A transition plane (32) is formed between the second flip limiting surface (31) and the top surface of the second limiting block (3). A second transition edge (33) is formed between the second flip limiting surface (31) and the transition plane (32). The vertical distance between the portion of the second transition edge (33) that is in rotational contact with the limiting surface (14) and the central axis of the snap-fit ​​shaft (22) is c; the distance between the portion of the second flipping limiting surface (31) that is in contact with the limiting surface (14) and the central axis of the snap-fit ​​shaft (22) is d; and c>d. When the flipping main body (1) is snapped onto the snapping shaft (22), it has an initial state, a first flipping state after the first flip, and a second flipping state after the second flip. In the initial state, the two limiting surfaces (14) are in contact with the two second flipping limiting surfaces (31) respectively; During the initial flip, the limiting surface (14) follows the flipping main body (1) and flips upward around the snap-fit ​​shaft (22) along the second flipping limiting surface (31). When passing the second transition edge (33), the elastic buckle (12) undergoes initial deformation until the limiting surface (14) is opposite to the transition plane (32). At this time, the limiting plane (11) contacts the top surface of the first limiting block (2). When flipped again, the limiting plane (11) follows the flipping main body (1) around the snap-fit ​​shaft (22) and flips downward from the top of the first limiting block (2) to the first flipping limiting surface (21). When passing the first transition edge (35), the elastic buckle (12) deforms again until it flips to the point where the limiting plane (11) and the first flipping limiting surface (21) are in contact.

2. The flip-over breathable structure according to claim 1, characterized in that: The first transition edge (35) is a smoothly transitioning arc surface structure.

3. The flip-over breathable structure according to claim 1, characterized in that: The second transition edge (33) is a smoothly transitioning arc surface structure.

4. The flip-over breathable structure according to claim 1, characterized in that: The flip-up main body (1) is adapted to be detachably installed with the lens connector (91) via a detachable mounting structure; The detachable installation structure includes: The first mounting shaft (41) is fixedly disposed at one end of the flipping main body (1); The second mounting shaft (42) is telescopically mounted on the other end of the flip-up main body (1); the flip-up main body (1) is detachably mounted to the lens connector (91) via the first mounting shaft (41) and the second mounting shaft (42).

5. The flip-over breathable structure according to claim 4, characterized in that: The second mounting shaft (42) is telescopically mounted on the other end of the flip-over main body (1) via the first mounting structure; The first mounting structure includes: The mounting cavity (5) is formed at the bottom of the flip-up main body (1) and has a bottom opening; A telescopic through hole (51) is provided at the other end of the flip-up main body (1) and communicates with the mounting cavity (5); The second mounting shaft (42) is telescopically mounted in the mounting cavity (5), and the free end of the second mounting shaft (42) has an extended state extending to the outside of the mounting cavity (5) through the telescopic through hole (51), and a retracted state retracting into the mounting cavity (5) through the telescopic through hole (51); It also includes a mounting base (52), which is detachably mounted at the bottom opening of the mounting cavity (5) and is capable of confining the second mounting shaft (42) within the mounting cavity (5).

6. The flip-over breathable structure according to claim 5, characterized in that, The second mounting shaft (42) includes: The middle main body section (43) can slide in contact with the inner wall of the mounting cavity (5), and the outer diameter of the end facing the telescopic through hole (51) is larger than the inner diameter of the telescopic through hole (51); The telescopic section (44), formed at one end of the central main body section (43) facing the telescopic through hole (51), can extend along the telescopic through hole (51) to the outside of the mounting cavity (5) or retract into the telescopic through hole (51). A connecting segment (45) is formed at the other end of the central main body segment (43).

7. The flip-over breathable structure according to claim 6, characterized in that: The second mounting shaft (42) is telescopically mounted in the mounting cavity (5) via a telescopic structure; The telescopic structure includes: Mounting post (53) is fixedly installed on the inner wall of the mounting cavity (5) at one end facing the connecting section (45); The elastic element (54) is installed in the mounting cavity (5), with one end sleeved on the mounting post (53) and the other end sleeved on the connecting section (45).

8. The flip-over breathable structure according to claim 7, characterized in that: It also includes an operating structure for controlling the telescopic movement of the second mounting shaft (42); The operational structure includes: The operating lever (6) is formed on the central main body section (43) of the second mounting shaft (42); A limiting opening (61) is provided on the mounting base (52); the operating rod (6) extends through the limiting opening (61) to the outside of the flipping main body (1) and can move back and forth along the limiting opening (61) under the action of external force, thereby controlling the telescopic movement of the second mounting shaft (42).

9. The flip-over breathable structure according to claim 5, characterized in that: The mounting base (52) is detachably mounted at the bottom opening of the mounting cavity (5) via a second mounting structure; The second mounting structure includes: The first snap-fit ​​opening (71) consists of two openings, which are opened at a certain distance on one side wall of the mounting cavity (5); The second snap-fit ​​opening (72) is formed on the other side wall of the mounting cavity (5); There are two first latching claws (73), which are formed on the side of the mounting base (52) opposite to the first latching opening (71); The second latching claw (74) is formed on the side of the mounting base (52) opposite to the second latching opening (72); The first snap-fit ​​claw (73) can be matched and snapped into the first snap-fit ​​opening (71), and the second snap-fit ​​claw (74) can be matched and snapped into the second snap-fit ​​opening (72), thereby detachably snapping the mounting base (52) into the bottom of the mounting cavity (5).

10. A ski goggle with a flip-up ventilated structure, comprising: The frame body comprises a face-fitting sponge pad, an adjustable headband, a lens holder (8), a lens (9), and a flip-up breathable structure; the face-fitting sponge pad is adhesively connected to the inner side of the frame body, the two ends of the adjustable headband are respectively fixedly connected to the two ends of the frame body, the lens holder (8) is detachably mounted on the outer side of the frame body, the flip-up breathable structure is detachably mounted on the lens holder (8), and the lens (9) is detachably mounted on the flip-up breathable structure; characterized in that, The flip-over ventilated structure is the flip-over ventilated structure according to any one of claims 1-9; the first limiting block (2) and the second limiting block (3) are formed at both ends of the lens holder (8); there are two lens connectors (91), which are respectively fixedly connected to both ends of the lens (9); the bottom surface of the lens connector (91) is formed with an installation opening (92), and the inner walls on both sides of the installation opening (92) are provided with installation through holes (93); the first installation shaft (41) and the second installation shaft (42) can be matched and installed with the installation through holes (93), so that the flip-over main body (1) and the lens (9) can be detachably installed together.

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