Protective cover and helmet assembly

Abstract

The utility model provides a protective cover and a helmet assembly. The protective cover is used for covering the mouth and the nose of a user, the protective cover comprises an inflatable cover body, the inflatable cover body can bulge after being inflated to form a cover cavity and is used for covering the periphery of the mouth and the nose of the user, and a breathing opening enabling the interior of the cover cavity to be communicated with the outside is formed in the lower portion of the cover cavity. According to the protective cover provided by the embodiment of the invention, when the protective cover is used, as the breathing opening is formed in the lower part of the cover cavity, gas exhaled by a user can be allowed to be mainly discharged downwards along the breathing opening in the lower part of the cover cavity, and exhaled hot gas is effectively guided, so that direct contact between the hot gas and a lens can be avoided; the water vapor condensation phenomenon of the lens caused by temperature difference is greatly reduced, and the lens is prevented from fogging.

Description

Technical Field

[0001] The present application relates to the technical field of protective covers, and particularly to a protective cover and a helmet assembly. Background Art

[0002] When the temperature is relatively low in winter, the water vapor exhaled from the mouth and nose is likely to condense into fog on the lens (eyeglass lens or helmet visor lens), thus blocking the vision of the user wearing the lens. Seriously, the vision will be completely blurred, which is likely to cause potential safety hazards.

[0003] Currently, lens anti-fog sprays can be used to prevent water vapor from condensing into fog on the lens, but the action time of the anti-fog spray is limited and the effect is not good.

[0004] Therefore, the problem of fogging on the lens when used in winter with relatively low temperature becomes an issue that needs continuous attention. Utility Model Content

[0005] The present application aims to at least solve the problem of fogging on the lens when used in winter with relatively low temperature in the above-mentioned prior art or related art.

[0006] To achieve the above object, a first aspect embodiment of the present application provides a protective cover for covering the mouth and nose of a user. Wherein, the protective cover includes an inflatable cover body which can be inflated to bulge and form a cover cavity for covering the outer periphery of the mouth and nose of the user, and a breathing port for communicating the inside of the cover cavity with the outside is formed at the lower part of the cover cavity.

[0007] According to the protective cover of the present application, when in use, the inflatable cover body can be fixed on the face of the user. At this time, the inflatable cover body covers the outer periphery of the mouth and nose of the user, and can form a good sealing environment after inflation, thereby reducing the possibility of the gas exhaled by the user overflowing wantonly from the upper part. Since a breathing port for communicating the inside of the cover cavity with the outside is formed at the lower part of the cover cavity, that is, the breathing port is arranged at the lower part of the cover cavity. In this way, it can allow the gas exhaled by the user to be mainly discharged downward along the breathing port at the lower part of the cover cavity. In this way, the hot gas exhaled by the user can be effectively guided to an area far from the lens, thereby avoiding direct contact between the hot gas and the lens, greatly reducing the phenomenon of water vapor condensation on the lens due to temperature difference, and preventing the lens from fogging.

[0008] In some embodiments, the inflatable cover body includes a sealing edge and an inflatable cover main body. The sealing edge is connected to the upper edge of the outer periphery of the cover main body for making the outer edge of the upper part of the inflatable cover body in sealing contact with the face of the user.

[0009] In some embodiments, the sealing edge has a first inflatable cavity, the cover body has a second inflatable cavity, and the first inflatable cavity and the second inflatable cavity are either in communication or not in communication.

[0010] In some embodiments, the sealing edge is flat or columnar.

[0011] In some embodiments, the sealing edge surrounds more than half of the circumferential edge region of the cover body.

[0012] In some embodiments, the protective cover includes a wearing rope, and the wearing ropes are arranged on opposite sides of the inflatable cover body for fixing the inflatable cover body on the user's face. Among them, the wearing rope is an ear loop or a binding rope.

[0013] In some embodiments, a filtering structure is provided at the breathing port.

[0014] In some embodiments, an inflation valve body is provided on the inflatable cover body, and the inflation valve body is used to put the inflatable cover body in an inflated state or a deflated state.

[0015] In some embodiments, the inflation valve body includes a valve body and a nozzle. The valve body is embedded in the inflatable cover body, and the nozzle is connected to the valve body and extends towards the user's mouth.

[0016] In other embodiments, the inflation valve body is suspended on the inflatable cover body, including a first hose section, a second hose section, and a valve body provided between the first hose section and the second hose section. The first hose section is used to connect between the inflatable cover body and the valve body, and the second hose section can extend to the user's mouth and be used as an inflation nozzle.

[0017] In some embodiments, the breathing port is formed by a notch in the lower edge of the outer periphery of the inflatable cover body; a shaping strip is formed on the side wall of the breathing port, and the shaping strip is used to maintain the size of the breathing port.

[0018] According to a second aspect of the present application, there is provided a helmet assembly, wherein the helmet assembly includes a helmet body and the above-mentioned protective cover connected to the helmet body.

[0019] According to the helmet assembly of the present application, when in use, the inflatable cover body can be fixed on the user's face. At this time, the inflatable cover body covers the periphery of the user's mouth and nose, and can form a good sealing environment after inflation, thereby reducing the possibility of the gas exhaled by the user overflowing wantonly from the upper part. Since a breathing port that communicates the inside of the cover cavity with the outside is formed in the lower part of the cover cavity, that is, the breathing port is arranged in the lower part of the cover cavity, in this way, it can allow the gas exhaled by the user to mainly discharge downward along the breathing port in the lower part of the cover cavity. In this way, the hot gas exhaled by the user can be effectively guided to an area far from the lens, thereby being able to avoid the direct contact between the hot gas and the lens, greatly reducing the phenomenon of water vapor condensation on the lens due to temperature difference, preventing the lens from fogging, and ensuring traffic safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Through the description of the embodiments in conjunction with the drawings below, the above and other objects and features of the present application will become clearer. In the drawings:

[0021] Figure 1 The side view structural schematic diagram of the protective cover provided according to the embodiment of the present application is shown;

[0022] Figure 2 The rear view structural schematic diagram of the protective cover provided according to the embodiment of the present application is shown;

[0023] Figure 3 The structural schematic diagram of the protective cover in the use state provided according to the embodiment of the present application is shown.

[0024] SYMBOL DESCRIPTION

[0025] 10. Inflatable cover body; 11. Cover main body; 12. Sealing edge; 20. Breathing port; 30. Cover cavity; 40. Wearing rope; 50. Shaping strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following detailed description is provided to assist the reader in obtaining a comprehensive understanding of the methods, devices, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent after understanding the disclosure of the present application. For example, the order of operations described herein is merely illustrative and is not limited to those set forth herein, but may be changed as will be apparent after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for greater clarity and conciseness.

[0027] The features described herein can be implemented in various forms and should not be construed as limited to the examples described herein. On the contrary, the examples described herein are provided only to illustrate some of the many viable ways of implementing the methods, apparatuses, and / or systems described herein, which will be apparent after understanding the disclosure of the present application.

[0028] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more of them.

[0029] Although terms such as "first", "second", and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts should not be limited by these terms. On the contrary, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, a first component, first element, first region, first layer, or first part as referred to in the examples described herein may also be referred to as a second component, second element, second region, second layer, or second part without departing from the teachings of the examples.

[0030] In the specification, when an element such as a layer, region, or substrate is described as "on", "connected to", or "mounted to" another element, the element can be directly "on", directly "connected to", or "mounted to" the other element, or there can be one or more other elements intervening therebetween. On the contrary, when an element is described as "directly on", "directly connected to", or "directly mounted to" another element, there can be no other elements intervening therebetween.

[0031] The terms used herein are only for describing various examples and are not intended to limit the present application. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including", and "having" specify the presence of the recited features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term "plurality" represents any quantity of two and more than two.

[0032] The definitions of orientation terms such as "upper part", "lower part", "inner part", and "outer part" in this application are all based on the orientation when the protective cover is in a normal use state as a reference. This definition method will help ensure that readers or users can clearly understand the relative positional relationship of each component and function, and should not be construed as a limitation to this application. Generally, the upper part refers to the part of the protective cover that is close to the user's head in the vertical direction. The lower part is opposite to the upper part and is close to the user's chin or neck. The inner part refers to the side of the protective cover close to the user, and the outer part is the side opposite to the inner part.

[0033] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs after understanding this application. Unless clearly defined herein, terms such as those defined in a general dictionary shall be construed to have a meaning consistent with their meaning in the context of the relevant art and this application, and shall not be idealized or interpreted too formally.

[0034] In addition, in the description of the examples, when it is considered that a detailed description of related components or functions that are well-known will cause a vague interpretation of this application, such detailed descriptions will be omitted.

[0035] The following will be combined with Figures 1 to 3 to introduce the protective cover provided by the embodiments of this application.

[0036] According to an embodiment of this application, a protective cover is provided for covering the mouth and nose of a user. Among them, as Figures 1 to 3 shown, the protective cover includes an inflatable cover body 10. The inflatable cover body 10 can be inflated and bulged to form a cover cavity 30 for covering the periphery of the user's mouth and nose, and a breathing port 20 for communicating the inside of the cover cavity 30 with the outside is formed at the lower part of the cover cavity 30.

[0037] According to the protective cover provided by the embodiment of this application, during use, the inflatable cover body 10 can be fixed on the user's face. At this time, the inflatable cover body 10 can cover the periphery of the user's mouth and nose, and a good sealing environment can be formed after inflation, thereby reducing the possibility of the gas exhaled by the user overflowing wantonly from the upper part. Since a breathing port 20 for communicating the inside of the cover cavity 30 with the outside is formed at the lower part of the cover cavity 30, that is, the breathing port 20 is arranged at the lower part of the cover cavity 30. In this way, it can allow the gas exhaled by the user to be mainly discharged downward along the breathing port 20 at the lower part of the cover cavity 30. In this way, the hot gas exhaled by the user can be effectively guided to an area away from the lens, thereby being able to avoid the direct contact between the hot gas and the lens, greatly reducing the phenomenon of water vapor condensation on the lens due to temperature difference and preventing the lens from fogging.

[0038] According to the present application, the inflatable cover 10 can bulge after inflation to form a semi-closed cover cavity. The semi-closed cover cavity can provide a relatively large breathing space for the user, making the breathing during use more natural and smooth, and avoiding the sense of oppression and discomfort caused by a narrow space. At the same time, the relatively large breathing space also helps to reduce the resistance during breathing, making breathing easier. Although the cover cavity has a semi-closed structure with a lower breathing opening, the upper part is closely attached to the face, forming a certain airtightness. The airtightness helps to reduce the gas flow here, further optimizing the anti-fog performance. In addition, the combined effect of the relatively large breathing space and good sealing performance enables the user to obtain a more smooth and comfortable breathing experience when using the protective cover.

[0039] According to the present application, a breathing opening 20 is formed at the lower part of the cover cavity 30. In this way, on the one hand, it can prevent hot air from rising directly and contacting the lenses of the glasses or goggles worn, reducing the possibility of fogging; on the other hand, setting the breathing opening at the lower part of the cover cavity enables the user to breathe freely through the mouth or nose without worrying about suffocation or poor breathing.

[0040] According to the present application, regarding the specific position of the breathing opening 20, in some embodiments, the breathing opening 20 is formed at a position close to the lower edge of the outer periphery of the inflatable cover 10. Specifically, it is a through hole formed in the inflatable cover 10, and the through hole is arranged close to the lower edge of the lower end of the inflatable cover 10. As some examples, the breathing opening 20 corresponds to the position of the user's mouth and can be formed as a long strip hole. In this way, it can ensure that the exhaled gas can be directly discharged and ensure the smoothness of breathing. As other examples, in the direction from the inside to the outside of the protective cover, the breathing opening is inclined downward. In this way, the exhaled gas from the mouth can be smoothly guided to a position farther away from the user's eyes. In other embodiments, the breathing opening 20 is a notch formed at the lower edge of the outer periphery of the inflatable cover 10. Using the notch at the lower edge of the outer periphery of the inflatable cover 10 as the breathing opening, the breathing opening can be set at a position relatively farther away from the user's eyes, thereby further improving the anti-fog performance. In addition, after the inflatable cover 10 is inflated, the notch at the lower edge of the outer periphery of the inflatable cover 10 can form a relatively large breathing opening while ensuring the overall shape of the inflatable cover 10, so as to improve the breathing smoothness of the user during use. In addition, using the notch at the lower edge of the outer periphery of the inflatable cover 10 as the breathing opening is convenient for cleaning to ensure hygienic safety.

[0041] According to the present application, a shaping strip 50 is provided on the side wall of the breathing port 20. When the wearer breathes or makes facial movements, the shaping strip 50 is used to maintain the size of the breathing port 20, preventing the breathing port 20 from shrinking or deforming due to external pressure or internal air flow changes, thereby affecting the smoothness of breathing and the protection effect. When the breathing port 20 is a notch formed at the lower edge of the outer periphery of the inflatable cover body 10, a shaping strip 50 is further provided at the lower end of the breathing port 20. The two ends of the shaping strip 50 are respectively connected to the two side walls of the breathing port 20. When the wearing rope 40 is tightened, the shaping strip 50 is used to be arranged at the user's chin to define the size of the breathing port 20 together with the wearing rope 40, so that the size of the breathing port 20 can be better maintained, avoiding the size of the breathing port 20 from shrinking during use and affecting the smoothness of breathing. As an example, the shaping strip 50 can be an elastic strip.

[0042] According to the present application, for the shape and size of the breathing port 20, specific settings can be made based on actual requirements. As an example, the shape of the breathing port can be oval, and the size of the major axis of the breathing port can be 3 cm - 7 cm.

[0043] According to the present application, the inflatable cover body is made of an elastic material. In this way, it can be adaptively adjusted according to the user's face shape. The cover cavity formed after inflation can closely fit the user's facial contour, reduce air leakage, and at the same time provide a uniform pressure distribution, avoiding local compression on the face, making the wearing more comfortable, reducing the discomfort caused by long-term wearing, and enhancing the user's experience. In some embodiments, the elastic material can be silicone, PA or PU.

[0044] According to the present application, the inflatable cover body 10 includes a sealing edge 12 and an inflatable cover main body 11. The sealing edge 12 is connected to the upper edge of the outer periphery of the cover main body 11, and is used to make the outer edge of the upper part of the inflatable cover body 10 in sealing contact with the user's face.

[0045] In these embodiments, the inflatable cover main body 11 bulges after inflation to form a cover cavity 30 with a breathing port 20 at the lower part, which is used to cover the outer periphery of the user's mouth and nose, so that the exhaled gas will not overflow wantonly from the upper part. In addition, the inflatable cover main body 11 can be deflated and folded when not needed, which is convenient for carrying and storage. Moreover, the inflatable cover main body 11 enables the adjustment based on the user's needs when using the protective cover, avoiding excessive compression and enhancing the user's experience. The sealing edge 12 is connected to the upper edge of the outer periphery of the cover main body 11 and contacts the upper part of the user's face. The sealing edge 12 can ensure the sealing between the inflatable cover body 10 and the user's face. By closely fitting the user's facial contour, it can prevent the exhaled gas from overflowing from the upper part of the protective cover and affecting the anti-fog effect.

[0046] According to the present application, the inflatable cover 10 can be integrally inflated, rather than just partially inflated. In some embodiments, the inflatable cover 10 includes an inflatable cover main body 11 and an inflatable sealing edge 12. The inflatable cover main body 11 mainly takes on the shaping of the cover cavity 30, and the inflatable sealing edge 12 mainly takes on forming a seal with the external environment to ensure that the internal air does not leak from the upper part of the protective cover, and can also play a role in enhancing the use stability of the structural strength to a certain extent.

[0047] Specifically, the sealing edge 12 has a first inflation cavity, and the cover main body 11 has a second inflation cavity. The first inflation cavity and the second inflation cavity are either communicated or not. If the first inflation cavity and the second inflation cavity are communicated, the cover main body 11 and the sealing edge 12 can be inflated and deflated synchronously. In this way, the operation of the protective cover during use can be simplified; if the first inflation cavity and the second inflation cavity are not communicated, the inflation degrees of the cover main body 11 and the sealing edge 12 can be controlled separately to meet specific requirements or achieve specific functional effects. It should be noted that whether to communicate or not can be set according to actual needs.

[0048] As some examples, when the first inflation cavity and the second inflation cavity are not communicated, the cover main body 11 and the sealing edge 12 are respectively structures that can be independently inflated. Since the sealing edge 12 can be independently inflated, it can be finely adjusted according to the facial features of different users. This design enables the inflatable cover 10 to better adapt to the facial contours of different people, improving the versatility and adaptability of the product.

[0049] As other examples, when the first inflation cavity and the second inflation cavity are communicated, the sealing edge 12 and the cover main body 11 can be integrally inflated. In this way, when inflating the cover main body 11, the gas will also enter the first inflation cavity of the sealing edge 12 at the same time. That is to say, the user only needs to use one inflation port to inflate the cover main body and the sealing edge at the same time. In this way, the inflation process is simplified and the convenience of use is improved.

[0050] In these embodiments, the sealing edge 12 is an inflatable structure, which can enhance the sealing performance. Specifically, by inflating the first inflation cavity, the shaping of the sealing edge 12 is realized, so that it can fit more closely on the facial contours of different users, significantly improving the sealing performance at the edge of the protective cover. In addition, the sealing edge 12 is an inflatable structure, which can improve the use comfort. Specifically, by adjusting the inflation amount of the first inflation cavity, the softness and hardness of the sealing edge 12 can be controlled. An appropriate inflation amount can make the sealing edge maintain sufficient sealing performance without being too tight to cause discomfort to the user, thereby improving the comfort of the user wearing it for a long time.

[0051] According to the present application, the sealing edge 12 is flat or columnar. The flat sealing edge is relatively thin and is easy to fit with the facial contour, and can fit closely on the user's facial contour. As an example, the sealing edge 12 is a flat strip, which surrounds the upper edge of the outer periphery of the mask body 11, can better disperse the pressure, and reduce the sense of compression on the user's facial skin. At the same time, it can also provide a relatively uniform sealing effect to prevent gas from flowing through here. The columnar sealing edge is relatively thick, in a cylindrical or similar shape, and surrounds the upper edge of the outer periphery of the mask body 11. After being inflated, it can bulge and contact the user, so as to provide the expected sealing effect. It should be noted that the present application does not limit the specific shape of the sealing edge too much, and those skilled in the art can select a suitable shape according to actual needs.

[0052] According to the present application, the sealing edge 12 is connected to the upper edge of the outer periphery of the mask body 11, and the sealing edge 12 surrounds more than half of the circumferential edge area of the mask body 11. In this way, the contact area between the protective mask and the user's face can be increased, the air leakage points are reduced, and it can better adapt to the differences in facial contours and sizes of different users, ensuring that the protective mask can fit closely with different facial shapes, thereby improving the comfort and upper sealing performance of the protective mask when worn. In addition, the sealing edge 12 surrounds more than half of the circumferential edge area of the mask body 11, which can improve the wearing stability of the protective mask and prevent displacement or detachment caused by movement or activities.

[0053] In some embodiments, the protective mask includes wearing ropes 40, which are arranged on opposite sides of the inflatable mask body 10 and are used to fix the inflatable mask body 10 on the user's face to prevent loosening or displacement during activities or breathing. Among them, the type of the wearing rope 40 is an ear loop or a binding rope. Two ear loops are provided, which are relatively arranged on both sides in the length direction of the inflatable mask body 10. Among them, both ends of each ear loop are fixed on two regions on one side in the length direction of the inflatable mask body 10, so as to form a closed loop. The user only needs to put the ear loops around the ears and adjust to a suitable position to easily wear the protective mask. The design of the ear loop is simple and comfortable, suitable for long-term wearing. Different from the ear loop, the binding rope can be adjustable and flexible, and its two ends are fixed on opposite sides of the protective mask. When in use, the user can freely adjust the length and tightness of the rope according to their face shape and comfort requirements.

[0054] Specifically, the material of the wearing rope 40 is a soft and elastic material to ensure its bearing capacity, durability and use comfort. As an example, the wearing rope 40 can be made of silicone, rubber or soft fabric, etc.

[0055] In some embodiments, a filtering structure is provided at the breathing port 20. The filtering structure includes a high-efficiency air filter device, an activated carbon filter, and a bacteria filter, which can filter out harmful substances in the air, such as particulate matter, bacteria, viruses, etc., to ensure that the air inhaled by the user is relatively clean and safe.

[0056] According to the present application, the shape and size of the inflatable cover 10 can be controlled by inflation, so that the protective cover can adapt to users with different face shapes, ensuring tightness while providing sufficient comfort.

[0057] In some embodiments, an inflation hose communicating with the inside of the inflatable cover 10 is provided on the inflatable cover 10. After the inflatable cover 10 is filled with gas, a binding rope or the inflation hose can be knotted to seal the inflation tube to avoid air leakage. In this way, the sealing method of knotting the inflation hose or using a binding rope can not only simplify the structure of the mask, but also improve the convenience and safety of use, and avoid hurting the face during collision.

[0058] In other embodiments, the inflatable cover 10 has an installation port, and the installation port can communicate the cover cavity 30 with the outside. An inflation valve body is provided at the installation port, and the inflation valve body is used to put the inflatable cover 10 in an inflated state or a deflated state. As an example, the inflation valve body can be a combination of a two-way controllable charging and discharging valve body or a one-way inflation and one-way exhaust valve body.

[0059] In these embodiments, the inflation valve body can control the inflow and outflow of gas, so that the inflatable cover 10 can be switched between an inflated state and a deflated state. The inflation valve body has good sealing performance in the closed state to prevent gas from leaking therefrom, and ensure the stability and reliability of the shaped inflatable cover 10 during use.

[0060] According to the present application, for the specific installation position of the inflation valve body, it can be inside the protective cover or outside the protective cover, and both can control the gas inside the inflatable cover 10 to ensure that the gas can flow in a predetermined direction. When inflating, the inflation valve body will open to allow gas to pass through; while when it is necessary to keep the gas sealed, the inflation valve body will close tightly to prevent gas leakage.

[0061] In some embodiments, the inflatable valve body is disposed on the inner surface of the inflatable cover 10. The inflatable valve body has an inflation nozzle that protrudes toward the cover cavity 30. In this way, it is convenient to inflate after wearing the protective cover, and the inflation operation can be completed without removing or adjusting the protective cover, which is suitable for use scenarios with relatively limited space. For example, when wearing a helmet, etc. Specifically, after the user wears the helmet assembly with the protective cover, the user can accurately find the inflation nozzle by touch and inflate, so that the trouble of being inconvenient to wear or being inappropriate due to the large volume after inflation can be avoided. In other embodiments, the inflatable valve body is disposed on the outer surface of the inflatable cover 10. The inflatable valve body has an inflation nozzle that faces outward, so that the user can easily find and operate the inflation nozzle to inflate at any time.

[0062] In these embodiments, when it is necessary to inflate the inflatable cover 10 to the desired shape and tightness, the user can use the inflation nozzle to blow air to inject gas into the inflatable cover 10. As the gas is continuously injected, the inflatable cover 10 will gradually expand and fit on the user's face. At this time, the inflatable valve body can remain open to allow gas to enter the inflatable cover 10 until inflation is completed. After inflation is completed, the inflatable valve body can remain closed to avoid air leakage. When it is necessary to release the gas inside the inflatable cover 10 to restore it to the uninflated state (for example, when removing the protective cover or cleaning), the user can operate the two-way controllable inflation and exhaust valve body or the one-way exhaust valve body to open the deflation channel. As the gas is released, the inflatable cover 10 will gradually shrink and return to its original shape.

[0063] According to the present application, for the specific structural form of the inflatable valve body, it can have the structural form in the prior art.

[0064] In some embodiments, the inflatable valve body includes a valve body and a nozzle. The valve body is embedded in the inflatable cover 10, and the nozzle is connected to the valve body and extends toward the user's mouth. In a preferred embodiment, the nozzle can be a soft nozzle.

[0065] In these embodiments, the user can blow air through the nozzle to fill the inflatable cover 10, and the valve body can make the inflatable cover 10 in an inflated state or a deflated state. In addition, according to the present application, the valve body is usually relatively hard. Especially when the inflatable valve body is disposed inside the protective cover, the inflatable valve body formed by the embedded valve body and the soft nozzle can avoid scratching the user's face during use. In addition, the embedded setting of the valve body is also beneficial to realize the stable connection of the inflatable valve body.

[0066] In some other embodiments, the inflatable valve body is suspended on the inflatable cover body, including a first hose section, a second hose section, and a valve body disposed between the first hose section and the second hose section. The first hose section is used to connect between the inflatable cover body and the valve body, and the second hose section can extend to the user's mouth and serve as an inflation nozzle.

[0067] In these embodiments, the suspended design enables the inflatable valve body to be flexibly fixed at any position on the inflatable cover body without affecting the overall shape and use of the protective cover. The user can adjust the position of the valve body according to needs to be more comfortable and convenient during inflation. In addition, this design helps to reduce the occupancy of the internal space of the cover body by the inflatable valve body, enabling the cover body to maintain a more compact and lightweight state after inflation.

[0068] According to a second aspect of the present application, there is provided a helmet assembly, wherein the helmet assembly includes a helmet main body and the protective cover provided in the above embodiments connected to the helmet main body.

[0069] In some embodiments, the helmet main body is the basic part of the helmet assembly, which is usually made of strong and lightweight materials such as ABS plastic, carbon fiber, etc. to effectively protect the user's head when impacted. The helmet main body includes a mouth and nose exposure notch, and the protective cover is disposed at the mouth and nose exposure notch of the helmet assembly.

[0070] During use, the protective cover can be fixed on the user's face by fixing the wearing rope on the user's ears. Then, by inflating with the mouth, the inflatable cover body 10 is inflated and bulged to form a certain shape and has a certain elasticity, so as to form a certain airtightness with the contact surface of the human face to prevent the exhaled gas from the mouth and nose from leaking from the upper part. And after shaping, the breathing port 20 of the cover cavity 30 is arranged downward so that the exhaled gas of the user can be smoothly guided downward away from the lens worn by the user, thereby preventing the lens from fogging during use.

[0071] According to the helmet assembly of the present application, in the case of wearing the helmet assembly and the vehicle colliding, the inflatable cover body 10 has a certain elasticity, so that it can reduce the injury of the user in a traffic accident.

[0072] Although the embodiments of the present application have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. However, it should be understood that in the view of those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present application defined by the claims.

Claims

1. A protective mask for covering the mouth and nose of a user, characterized in that: The protective mask comprises an inflatable mask body (10), which can swell up after being inflated to form a mask cavity (30), the inflatable mask body (10) is used to cover the periphery of the mouth and nose of the user, and a breathing port (20) is formed at the lower part of the mask cavity (30) so that the interior of the mask cavity (30) is connected to the outside.

2. The protective cover according to claim 1, characterized in that: The inflatable cover (10) comprises: An inflatable mask body (11); A sealing edge (12) is connected to the upper edge of the outer periphery of the mask body (11) and is used to make the outer edge of the upper part of the inflatable mask body (10) contact the face of the user in a sealed manner.

3. The protective cover according to claim 2, characterized in that: The sealing edge (12) has a first air-filled cavity, and the cover body (11) has a second air-filled cavity. The first air-filled cavity and the second air-filled cavity are conductive or non-conductive.

4. The protective cover according to claim 2, characterized in that: The sealing edge (12) is flat or columnar.

5. The protective cover according to claim 2, characterized in that: The sealing edge (12) surrounds more than half of the circumferential edge of the cover body (11).

6. The protective cover according to claim 1, characterized in that: The protective cover comprises: A wearing rope (40) is arranged on two opposite sides of the inflatable mask (10) and is used to fix the inflatable mask (10) on the face of the user.

7. The protective cover according to claim 1, characterized in that: The breathing port (20) is provided with a filtering structure; or The inflatable cover body (10) is provided with an inflation tube.

8. The protective cover according to claim 1, characterized in that: The inflatable cover body (10) is provided with an inflation valve body, and the inflation valve body is used to put the inflatable cover body (10) into an inflated state or a deflated state.

9. The protective cover according to claim 8, characterized in that: The inflation valve body comprises a valve body and an air nozzle, the valve body is embedded in the inflatable mask (10), and the air nozzle is connected to the valve body and extends toward the mouth of the user; or The inflation valve body is suspended on the inflatable cover body (10), and comprises a first hose section, a second hose section, and a valve body arranged between the first hose section and the second hose section, wherein the first hose section is used to connect between the inflatable cover body (10) and the valve body, and the second hose section can extend to the user's mouth to be used as an inflation nozzle.

10. The protective cover according to any one of claims 1 to 9, characterized in that: The breathing port (20) is formed by a notch at the lower edge of the outer periphery of the inflatable mask (10); and / or A shaping strip (50) is formed on the side wall of the breathing opening (20), and the shaping strip (50) is used to maintain the size of the breathing opening (20).

11. A helmet assembly, characterized in that: The helmet assembly comprises a helmet body and a protective cover according to any one of claims 1 to 10 connected to the helmet body.

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