Mask stowable helmet

Abstract

The application provides a helmet with a mask storage function, which comprises a helmet shell, a mask and an air supply channel. The mask is reversibly connected with the helmet shell between a storage position and a laid-down position. The air supply channel is arranged in a shell wall of the helmet shell. The air supply channel has a through air supply opening and an air outlet opening. The air supply channel has a storage section for accommodating the mask in the storage position at a position close to the air outlet opening. The mask is stored in the storage section through the air outlet opening so that the airflow in the air supply channel blows the mask. The mask in the storage position is stored in the air supply channel, which can effectively protect the mask from being worn and scratched in the storage position. Meanwhile, the internal space of the helmet shell is effectively utilized, and the space utilization rate is improved. When the mask is stored, the airflow in the air supply channel can also blow and clean the mask. The wearer does not need to manually clean the mask frequently, and the helmet is especially suitable for application scenarios with a lot of coal dust and dust, such as coal mines.

Description

Technical Field

[0001] This invention relates to the field of protective equipment technology, and in particular to a helmet with a retractable face mask. Background Technology

[0002] A helmet is a protective piece of equipment used to prevent or mitigate head injuries caused by collisions, impacts, burns, electric shocks, and other injuries during emergencies. Helmets typically consist of a shell, a buffer layer, padding, a fitting mechanism, and a face shield. In helmets with a retractable face shield, the face shield is movably connected to the helmet shell via a shaft structure. Based on the position of the face shield when raised, they are generally classified into two types: inward-retracting face shields and outward-retracting face shields. Inward-retracting face shields are located inside the helmet when raised, which can interfere with the helmet liner and affect its stress structure; therefore, inward-retracting face shields are generally shorter and smaller. Outward-retracting face shields are located outside the helmet when raised, making them more susceptible to wear, scratches, and dirt. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a retractable helmet with a face mask that can be retracted into an air supply channel.

[0004] An embodiment of the present invention provides a retractable helmet, comprising: a helmet shell and a face mask, wherein the helmet shell has an observation window opposite to the wearer's face, the face mask is rotatably connected to the helmet shell between a retracted position and a lowered position, the face mask in the lowered position covers the observation window, and the face mask in the retracted position opens the observation window; and an air supply channel disposed within the shell wall of the helmet shell, the air supply channel having a through air inlet and an air outlet, the air supply channel having a storage section near the air outlet for accommodating the face mask in the retracted position, the face mask being retracted into the storage section through the air outlet so that the airflow in the air supply channel blows on the face mask.

[0005] The retractable helmet provided in this invention features an air supply channel within the helmet shell wall. This channel includes a storage section for the face mask, allowing it to be retracted into the air supply channel when in its retracted position. This effectively protects the face mask from wear and scratches, while also maximizing the use of the helmet shell's internal space. When the face mask is retracted, the airflow in the air supply channel can also clean the mask, eliminating the need for frequent manual cleaning by the wearer. This design is particularly suitable for applications with high levels of coal dust and other particulate matter, such as coal mines.

[0006] In some embodiments, the outer side of the mask in the retracted position is spaced from the wall of the air supply channel so that the airflow in the air supply channel sweeps the outer side of the mask.

[0007] In some embodiments, the inner side of the mask in the stowed position is spaced from the wall of the air supply channel so that the airflow in the air supply channel sweeps the inner side of the mask.

[0008] In some embodiments, the mask in the down position is located outside the air outlet so that the air supply channel supplies air to the space between the mask and the wearer's face.

[0009] In some embodiments, the mask in the lowered position is located inside the air outlet so that the air supply channel delivers air to the outer side of the mask to blow air onto the outer side of the mask.

[0010] In some embodiments, when the mask is in the lowered position, a portion of the air outlet is located on the outside of the mask to allow a portion of the airflow to sweep the outer side of the mask, and another portion of the air outlet is located on the inside of the mask to allow a portion of the airflow to be directed into the space between the mask and the wearer's face.

[0011] In some embodiments, the air supply channel further has at least one auxiliary air supply port, which is parallel to the air outlet. The auxiliary air supply port is used to supply air to the outer side of the mask in the lowered position to blow air onto the outer side of the mask, and / or, the auxiliary air supply port is used to supply air to the space between the mask and the wearer's face in the lowered position.

[0012] In some embodiments, the mask-retractable helmet includes a grid-structured air supply regulator, which is located at the auxiliary air outlet and connected to the helmet shell. The air supply regulator includes a plurality of spaced-apart grids, the tilt angle of which is adjustable.

[0013] In some embodiments, the air outlet is arc-shaped, with a portion of the air outlet located above the observation window and another portion located to the side of the observation window, and the shape of the mask is adapted to the shape of the air outlet.

[0014] In some embodiments, the face mask is movably connected to the helmet shell via a pivot to move between a stowed position and a down position. The face mask has a flip angle of 50°-70°. When the face mask is in the stowed position, a portion of it is located outside the air supply channel, and when the face mask is in the down position, a portion of it is located inside the storage section. Attached Figure Description

[0015] Figure 1This is a front view of the mask-folding helmet provided in an embodiment of the present invention (the mask is in the folded position).

[0016] Figure 2 This is a side view (perspective view of the mask in the folded position) of the mask-folding helmet provided in an embodiment of the present invention.

[0017] Figure 3 This is a side view of the mask-folding helmet provided in an embodiment of the present invention (mask in the lowered position).

[0018] Figure 4 This is a schematic diagram of the air supply regulating component provided in an embodiment of the present invention.

[0019] Figure label:

[0020] A helmet with a retractable face mask 100, a helmet shell 110, an observation window 111, a face mask 120, an outer side 121, an inner side 122, a pivot 123, an air supply channel 130, an air supply outlet 131, an air outlet 132, a storage section 133, an air supply adjustment component 140, a grille 141, and an air inlet pipe 150. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following is based on Figures 1-4 The mask-storage helmet 100 provided in the embodiments of the present invention includes a helmet shell 110, a mask 120 and an air supply channel 130.

[0023] A helmet shell 110 is used to protect the wearer's head and has an observation window 111 facing the wearer's face. A face shield 120 is rotatably connected to the helmet shell 110 between a stowed position and a down position, wherein the down position of the face shield 120 covers the observation window 111 to protect the wearer's face, and the stowed position of the face shield 120 leaves the observation window 111 open. The wearer can selectively stow and down the face shield 120 to open or cover the observation window 111 located in front of the face.

[0024] The air supply channel 130 is located inside the shell wall of the helmet shell 110. The air supply channel 130 has a through air supply port 131 and an air outlet 132. The air supply channel 130 has a storage section 133 near its air outlet 132. The storage section 133 is used to accommodate the mask 120 in the folded position. That is, the mask 120 in the folded position is stored in the storage section 133 of the air supply channel 130. The mask 120 is stored in the storage section 133 through the air outlet 132 so that the airflow in the air supply channel 130 can blow on the mask 120.

[0025] The wearer flips the mask 120 to its stowed position, with at least a portion of the mask 120 located in the storage section 133 of the air supply duct 130, effectively protecting the mask 120. Purge gas enters the air supply duct 130 from the air outlet 131 and flows towards the air outlet 132. Upon reaching the storage section 133, the airflow purges the mask 120 in its stowed position, cleaning dust from its surface.

[0026] It should be noted that, during the process of flipping the face mask 120 from the lowered position to the folded position, and during the process of flipping the face mask 120 from the folded position to the lowered position, the helmet shell 110 and the face mask 120 should avoid scratching and friction to protect the face mask 120. This can be achieved by reasonably designing the shapes of the helmet shell 110 and the face mask 120.

[0027] The retractable helmet provided in this invention features an air supply channel within the helmet shell wall. This channel includes a storage section for the face mask, allowing it to be retracted into the air supply channel when in its retracted position. This effectively protects the face mask from wear and scratches, while also maximizing the use of the helmet shell's internal space. When the face mask is retracted, the airflow in the air supply channel can also clean the mask, eliminating the need for frequent manual cleaning by the wearer. This design is particularly suitable for applications with high levels of coal dust and other particulate matter, such as coal mines.

[0028] In some preferred embodiments, such as Figure 1 As shown, the outer surface 121 of the face mask 120 in the retracted position is spaced from the wall of the air supply channel 130 so that the airflow in the air supply channel 130 can sweep the outer surface 121 of the face mask 120 to clean the dust. This is because during helmet use, the face mask 120 in the retracted position is more exposed to a high-pollution, high-dust environment, and is more prone to dust accumulation. Therefore, it is preferable to space the outer surface 121 of the face mask 120 in the retracted position from the wall of the air supply channel 130 so that the airflow can clean the outer surface 121 of the face mask 120.

[0029] Furthermore, such as Figure 2As shown, the inner side 122 of the mask 120 in the retracted position is also spaced apart from the wall of the air supply channel 130, so that the airflow in the air supply channel 130 can also clean the inner side 122 of the mask 120. That is, in a more preferred embodiment, both the inner side 122 and the outer side 121 of the mask 120 in the retracted position can come into contact with the airflow in the air supply channel 130, further improving the cleaning effect of the mask 120.

[0030] It should be noted that the outer side 121 of the mask 120 refers to the side away from the wearer's head, and the inner side 122 of the mask 120 refers to the side closer to the wearer's head.

[0031] In some embodiments, such as Figure 1 and Figure 2 As shown, the air outlet 132 of the air supply channel 130 is arc-shaped. Part of the air outlet 132 is located above the observation window 111 and the other part is located to the side of the observation window 111. The shape of the mask 120 is adapted to the shape of the air outlet 132 and is also arc-shaped, so as to make the structure of the mask storage helmet 100 more reasonable.

[0032] When wearing a helmet, users typically lower the visor (120mm), creating a relatively enclosed environment for the head. To prevent breathing difficulties, chest tightness, or other issues that could affect the wearer's work, in some embodiments, such as... Figure 3 As shown, the mask 120 in the lowered position is located outside the air outlet 132 of the air supply channel 130, so that the air supply channel 130 supplies air to the space between the mask 120 and the wearer's face. That is, when the mask 120 is lowered, the fresh air flow from the air outlet 132 of the air supply channel 130 reaches above the wearer's mouth and nose, allowing the wearer to continuously breathe fresh air.

[0033] Furthermore, it is understandable that the air vent 130 is designed as a wide, flat opening to accommodate the face mask 120. This flat shape allows airflow to be dispersed before reaching the wearer's mouth and nose, preventing airflow from concentrating above the face and improving the user's breathing experience. The flat shape also ensures more even airflow and a gentler airflow rate, facilitating the diffusion of fresh air throughout the helmet's interior.

[0034] like Figure 2 As shown, the air outlet 131 of the air supply channel 130 has a circular structure. The cross-sectional shape of the air supply channel 130 gradually transitions from the relatively concentrated air outlet 131 to the flat air outlet 132, which gradually slows down the airflow speed and improves the wearing experience. The air supply channel 130 creates a positive pressure environment inside the helmet, which also prevents dust from entering the helmet.

[0035] In some specific embodiments, such as Figure 1 As shown, the air vent 132 is arc-shaped and extends from the left side of the wearer's face to the right side. When the mask 120 is in the lowered position, part of the air vent 132 is located above the wearer's face, and the airflow blows downwards. The other part of the air vent 132 is located on both sides of the wearer's face, and the airflow convects and blows towards the face. Thus, the airflow enters the space between the mask 120 and the wearer's face evenly and disperses, and diffuses inside the helmet, allowing the wearer to breathe fresh air and have a better breathing experience.

[0036] Different industries have different functional requirements for helmets. In applications with high levels of coal dust and particulate matter, such as coal mines, coal dust and particulate matter accumulate on the outer surface of the helmet visor. To avoid affecting the wearer's vision and productivity, in some embodiments, the visor 120 in its lowered position is positioned inside the air outlet 132 of the air supply channel 130. This allows the air supply channel 130 to deliver air to the outer surface 121 of the visor 120, blowing away the dust and coal dust deposited thereon. This achieves continuous self-cleaning of the visor 120 in complex atmospheric environments, eliminating the need for the wearer to actively clean the visor 120, improving visibility, and increasing work efficiency.

[0037] In some specific embodiments, the air outlet 132 is arc-shaped and extends from the left side of the wearer's face to the right side. When the mask 120 is in the lowered position, part of the air outlet 132 is located above the mask 130, and another part of the air outlet 132 is located on both sides of the mask 130. This allows the air outlet 132 to blow air onto the outer surface 121 of the mask 120 from multiple angles, increasing the blowing area of ​​the air and improving the self-cleaning effect of the mask 120.

[0038] Furthermore, in some alternative embodiments of the invention, when the mask 120 is in the lowered position, a portion of the air outlet 132 is located on the outer side of the mask 120 so that the airflow exiting from this portion of the air outlet 132 sweeps the outer surface of the mask 120, and another portion of the air outlet 132 is located on the inner side of the mask 120 so that the airflow exiting from this portion of the air outlet 132 is directed to the space between the mask 120 and the wearer's face. That is, in such embodiments, the air delivery channel serves the dual purpose of cleaning the mask 120 and delivering air to the face.

[0039] In some embodiments, the air supply duct 130 further has at least one auxiliary air supply port (not shown in the figure), which is parallel to the air outlet 132 and is used to assist in air supply. That is, the auxiliary air supply port is connected to the air supply duct 130, and the gas in the air supply duct 130 can be discharged from either the air outlet 132 or the auxiliary air supply port.

[0040] Optionally, the auxiliary air vent is located above, to the side or below the observation window 120, and it can be opened on the inside or outside of the helmet shell 110.

[0041] Optionally, an auxiliary air outlet is used to blow air onto the outer surface 121 of the mask 120 in the lowered position to clean the outer surface 121 of the mask 120.

[0042] In some alternative embodiments, the mask 120 in the lowered position is located outside the air outlet 132 of the air supply channel 130, which supplies air to the space between the mask 120 and the wearer's face. An auxiliary air outlet is located outside the mask 120 and blows air outwards to the outer side 121. This gives the air supply channel 130 the dual function of cleaning the mask 120 and supplying air to the face.

[0043] Optionally, an auxiliary air outlet is used to supply air to the space between the mask 120 in the lowered position and the wearer's face, providing fresh air to the wearer.

[0044] In some alternative embodiments, the mask 120 in its lowered position is located inside the air outlet 132 of the air supply channel 130, which supplies air to the outer surface 121 of the mask 120. An auxiliary air outlet, located inside the mask 120, supplies air to the space between the mask 120 and the wearer's face. This gives the air supply channel 130 the dual function of cleaning the mask 120 and supplying air to the face.

[0045] Optionally, there are multiple auxiliary air outlets. Some of the auxiliary air outlets are used to blow air onto the outer side 121 of the mask 120 in the lowered position to blow air onto the outer side 121 of the mask 120. Other auxiliary air outlets are used to blow air into the space between the mask 120 in the lowered position and the wearer's face.

[0046] Furthermore, the mask-retractable helmet 100 includes a grille-structured air supply regulator 140, which is located at an auxiliary air outlet and connected to the helmet shell 110. The air supply regulator 140 includes a plurality of spaced-apart grilles 141, with intervals between the grilles 141 for air outlet. The tilt angle of the grilles 141 is adjustable to adjust the air outlet angle. In other words, the grilles 141 of the air supply regulator 140 can swing to adjust the air outlet angle. Figure 4 The arrows in the text indicate the wind direction.

[0047] To enable the face mask 120 to be flipped, in some embodiments, such as Figure 2 As shown, the face mask 120 is movably connected to the helmet shell 110 via a pivot 123 to move between a stowed position and a down position, and the face mask 120 can rotate around the pivot 123.

[0048] Optionally, the maximum rotation angle of the mask 120 is 50°-70°.

[0049] Optionally, a portion of the face shield 120 in the stowed position is located outside the air supply duct 130 for easy operation by the wearer. A portion of the face shield 120 in the down position is located inside the storage section 133 to prevent external dust from entering the helmet through the gap between the face shield 120 and the helmet shell 110.

[0050] In some embodiments, to achieve continuous air supply, the retractable helmet 100 also includes a fan (not shown), such as... Figure 2 As shown, the air outlet 132 is connected to the air inlet pipe 150, and the fan outlet is connected to the air inlet pipe 150. The fan is used to deliver air into the air supply channel 130 through the air inlet pipe 150.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A helmet with a retractable face mask, characterized in that, include: A helmet shell and a face shield, the helmet shell having an observation window opposite to the wearer's face, the face shield being flip-connected to the helmet shell between a stowed position and a down position, the face shield covering the observation window in the down position and the face shield opening the observation window in the stowed position; An air supply channel is provided inside the shell wall of the helmet shell. The air supply channel has a through air supply port and an air outlet. Near the air outlet, the air supply channel has a storage section for accommodating the mask in the retracted position. The mask is retracted into the storage section through the air outlet so that the airflow in the air supply channel can blow the mask. When the mask is flipped over to the stowed position, at least a portion of the mask is located in the storage section of the air supply channel, and the purge gas enters the air supply channel from the air inlet and flows toward the air outlet. When the airflow reaches the storage section, it purges the mask located in the stowed position.

2. The mask-storage helmet according to claim 1, characterized in that, The outer side of the mask in the retracted position is spaced from the wall of the air supply channel so that the airflow in the air supply channel sweeps the outer side of the mask.

3. The mask-storage helmet according to claim 2, characterized in that, The inner side of the mask in the stowed position is spaced apart from the wall of the air supply channel so that the airflow in the air supply channel sweeps the inner side of the mask.

4. The mask-storage helmet according to claim 1, characterized in that, The mask, in its lowered position, is located outside the air outlet so that the air supply channel delivers air into the space between the mask and the wearer's face.

5. The mask-storage helmet according to claim 1, characterized in that, The mask, in its lowered position, is located inside the air outlet so that the air supply channel delivers air to the outer side of the mask to sweep the outer side of the mask.

6. The mask-storage helmet according to claim 1, characterized in that, When the mask is in the lowered position, a portion of the air outlet is located on the outside of the mask to allow some airflow to sweep the outer side of the mask, and another portion of the air outlet is located on the inside of the mask to allow some airflow to be directed into the space between the mask and the wearer's face.

7. The mask-retractable helmet according to any one of claims 4-6, characterized in that, The air supply channel also has at least one auxiliary air supply port, which is parallel to the air outlet. The auxiliary air supply port is used to supply air to the outer side of the mask when it is in the lowered position to blow air onto the outer side of the mask, and / or, the auxiliary air supply port is used to supply air to the space between the mask and the wearer's face when it is in the lowered position.

8. The mask-retractable helmet according to claim 7, characterized in that, The air supply regulating component includes a grille structure. The air supply regulating component is located at the auxiliary air outlet and connected to the helmet shell. The air supply regulating component includes a plurality of spaced grilles, and the tilt angle of the grilles is adjustable.

9. The mask-retractable helmet according to any one of claims 1-6, characterized in that, The air outlet is arc-shaped, with one part of the air outlet located above the observation window and the other part located to the side of the observation window. The shape of the mask is adapted to the shape of the air outlet.

10. The mask-storage helmet according to claim 1, characterized in that, The face mask is movably connected to the helmet shell via a pivot to move between a stowed position and a down position. The face mask has a flip angle of 50°-70°. When the face mask is in the stowed position, a portion of it is located outside the air supply channel, and when the face mask is in the down position, a portion of it is located inside the storage section.

Images