Breathable helmet

Abstract

Provided in the present invention is a breathable helmet, which comprises a helmet body, a connecting structure and an air fiber lining, wherein the air fiber lining is composed of fiber filaments which are disorderly distributed and air gaps, and the air fiber lining is connected, by means of the connecting structure, to a surface of a helmet inner cavity attached to the helmet body. The air fiber lining of the breathable helmet provided by the present invention has good air permeability, can provide comfortable elastic support, reduces the feeling of stuffiness when the helmet is worn for a long time, does not absorb water, and is breathable, mildew-proof and easy to clean. If a rider falls while riding with the breathable helmet on and thus hits his / her head, the staggered fiber filaments in the air fiber lining stretch and deform, so that his / her head produces a certain sliding action relative to the helmet, and a buffering effect on a rotating force borne by the head of the rider is achieved, thus reducing the damage of the rotating force to the brain during collision; and when the air fiber lining and the flexible breathable sleeve arranged on the outside of same form a breathable layer, the elastic and high-air-gap air fiber lining in the breathable layer is adapted to the shape of the head, thereby preventing the head from being squeezed by the helmet and the top of the head from being pressed by the helmet.

Description

A breathable helmet Technical Field

[0001] The present invention relates to the technical field of helmet manufacturing, in particular to a breathable helmet. Background Art

[0002] Currently, conventional helmets for bicycles, electric vehicles, and motorcycles typically have linings made of sponge and cloth, with an outer layer of cloth and an inner layer of sponge. This sponge-and-cloth combination helmet lining provides a certain cushioning effect when the user wears the helmet. However, when the helmet's interior cavity does not conform to the user's head shape, conventional helmet liners cannot effectively improve the user's wearing comfort. The helmet can pinch the user's head or press against the top of the head, resulting in poor wearing comfort. Furthermore, this sponge-and-cloth combination helmet lining has poor air permeability, making the user's head easily stuffy and uncomfortable when worn in hot summer weather, further affecting the helmet's comfort and seasonal adaptability. Furthermore, when used as a companion helmet for shared electric vehicles or bicycles, the sponge-and-cloth combination lining can easily absorb excessive sweat and accumulate hair oil during long-term use. This can lead to hygiene issues such as difficulty cleaning the helmet lining, mold growth, and bacterial growth, reducing the helmet's suitability. Therefore, providing a cycling helmet that is breathable, comfortable, and less likely to pinch or press against the head is an urgent technical problem to be solved in this field. Summary of the Invention

[0003] The present invention provides a breathable helmet to solve the technical problems existing in the prior art of traditional cycling helmets, such as the head easily feeling stuffy when worn, the head being easily pinched, or the helmet pressing against the top of the head after wearing.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is:

[0005] The present invention provides a breathable helmet, comprising a helmet body and further comprising:

[0006] The connecting structure and the air fiber lining are composed of disorderly distributed fiber filaments and air gaps. The air fiber lining is connected and attached to the inner cavity surface of the helmet body through the connecting structure.

[0007] Preferably, the connecting structure is a connecting colloid.

[0008] Preferably, the connecting colloid is a bonding layer composed of an adhesive, one side of the bonding layer is bonded to the air fiber lining, and the other side of the bonding layer is bonded to the inner cavity surface of the helmet.

[0009] Furthermore,

[0010] The connection structure includes:

[0011] Multiple rivets and multiple rivet mounting seats are installed at intervals on the helmet body. The air fiber lining is provided with multiple countersunk holes that match the shape of the rivets and the positions of the rivet mounting seats. The rivets pass through the countersunk holes and are matched with the bayonet sockets of the rivet mounting seats to fix the air fiber lining to the inner surface of the helmet.

[0012] Preferably, the rivet is a mushroom nail, the rivet mounting seat is a mushroom nail mounting seat, the bayonet is a ball head bayonet provided on the mushroom nail mounting seat and matching the shape of the ball head end of the mushroom nail, and the mushroom nail is riveted to the mushroom nail mounting seat through its ball head end and the ball head bayonet.

[0013] Furthermore, the breathable helmet further comprises: a flexible breathable cover, an air fiber liner filled in the flexible breathable cover, and the flexible breathable cover and the air fiber liner form a breathable layer; and the connection structure comprises:

[0014] At least one first connecting member is provided on the inner cavity surface of the helmet; at least one second connecting member is provided on the contact surface of the flexible breathable sleeve matching the inner cavity of the helmet so as to match the first connecting member;

[0015] The breathable layer is connected to the inner cavity surface of the helmet through the second connecting piece in cooperation with the first connecting piece, and the contact surface is close to or attached to the inner cavity surface of the helmet.

[0016] Furthermore, the first connecting member is a female buckle, which includes a female buckle seat and a female buckle clamp provided in the middle of the female buckle seat, and the hollow inner side of the female buckle clamp forms a clamping cavity; the breathable helmet also includes a buffer layer applied to the inner side of the helmet body, the inner cavity surface of the helmet is the surface of the buffer layer, the female buckle is integrally formed in the buffer layer, and the clamping cavity is connected to the inner cavity surface of the helmet at the opening formed on the end face of the female buckle clamp away from the female buckle seat; the second connecting member is a sub-buckle, one end of the sub-buckle is fixedly connected to the flexible breathable sleeve, and the other end of the sub-buckle cooperates with the clamping cavity.

[0017] Preferably, the buckle includes a bottom nail and a buckle seat respectively arranged at both ends of the buckle; the bottom nail includes a nail cap and a through nail arranged in the middle of one side of the nail cap; the buckle seat includes a base and a clamping column arranged on one side of the base, the shape of the clamping column matches the shape of the clamping cavity, and the other side of the base is provided with a socket extending into the interior of the clamping column, and the shape of the socket matches the shape of the through nail; the nail cap abuts the inner surface of the flexible breathable sleeve, the base abuts the outer surface of the flexible breathable sleeve, the through nail passes through the flexible breathable sleeve and cooperates with the socket, and the clamping column cooperates with the clamping cavity.

[0018] Preferably, a deformation groove is provided on the end surface of the clamping column away from the nail cap.

[0019] Preferably, the first connecting member includes a first base layer and a hook surface layer applied on one side of the first base layer, and the side of the first base layer facing away from the hook surface layer is fixedly connected to the inner surface of the helmet; the second connecting member includes a second base layer and a fleece surface layer applied on one side of the second base layer, and the side of the second base layer facing away from the fleece surface layer is fixedly connected to the contact surface.

[0020] Preferably, the fiber filaments are solid or hollow tubular.

[0021] Preferably, a plurality of first connecting members are spaced and distributed on the inner cavity surface of the helmet, and a plurality of second connecting members are spaced and distributed on the contact surface in a manner matching the first connecting members.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The air fiber lining used in the breathable helmet provided by the present invention has good air permeability, can provide comfortable elastic support, and reduce the stuffiness caused by wearing the helmet for a long time. When used as a helmet for shared electric vehicles, bicycles or motorcycles, it has the advantages of being sweat-resistant, breathable, mildew-proof and easy to clean. When the flexible breathable cover outside the breathable layer attached to the inner surface of the helmet contacts the head, the air fiber lining inside the breathable layer separates the head from the inner surface of the helmet. The air fiber lining with high air gaps in the breathable layer is elastic and can provide large deformation while providing support, so that the air fiber lining inside the helmet can automatically deform and fit according to different head shapes, thereby increasing the contact area of ​​the head wearing the helmet and avoiding the problem of clamping the head and the helmet pressing on a local area of ​​the top of the head when wearing the helmet due to the mismatch between the helmet inner cavity and the head caused by the traditional lining.

[0024] The breathable helmet provided by the present invention also allows for efficient and rapid ventilation and heat exchange between the rider's head and the surrounding environment. This allows for rapid drying of sweat on the rider's head during hot summer weather cycling, avoiding the stuffiness and discomfort associated with long-term use of traditional helmets with sponge linings, as well as hygiene issues such as difficulty cleaning the helmet lining due to the absorption of sweat and hair oil, as well as the tendency for the lining to become moldy, smelly, and harbor bacteria. This further enhances the user experience and environmental adaptability of cycling helmets. The breathable layer is flexible and can be easily and quickly disassembled and cleaned as a helmet lining.

[0025] In addition, the breathable helmet provided by the present invention can also form an elastic support on the rider's head through the breathable layer or directly through the air fiber lining. If the rider falls during riding and his head is impacted or colliding, the disorderly and staggered fiber filaments in the air fiber lining will stretch and deform, causing the head to slide relative to the helmet during the collision, thereby buffering the rotational force exerted on the rider's head and reducing the damage to the brain caused by the rotational force during the collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions proposed in the present invention, they are described in detail below in conjunction with the embodiments and drawings. It should be understood that the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, these drawings can be changed under the concept of the present invention.

[0027] FIG1 is a schematic diagram of the main structure of a first embodiment of a breathable helmet provided by the present invention;

[0028] FIG2 is a schematic cross-sectional view of the breathable helmet in FIG1 ;

[0029] FIG3 is a schematic diagram of a partially enlarged structure of area A in FIG2 ;

[0030] FIG4 is a schematic diagram of the three-dimensional structure of a breathable helmet according to a first embodiment of the present invention;

[0031] FIG5 is a bottom view of the structure of the first embodiment of the breathable helmet provided by the present invention;

[0032] FIG6 is a bottom view of the structure of a second embodiment of a breathable helmet provided by the present invention;

[0033] FIG7 is a schematic cross-sectional view of the breathable helmet in FIG6 along the BB direction;

[0034] FIG8 is a bottom view of the structure of the third embodiment of the breathable helmet provided by the present invention;

[0035] FIG9 is a schematic cross-sectional view of the breathable helmet in FIG8 along the CC direction;

[0036] FIG10 is a partial enlarged structural diagram of the D region of the breathable helmet in FIG9 ;

[0037] FIG11 is a schematic diagram of the assembly of the first connector on the contact surface of the breathable layer of the helmet body shown in FIG8 ;

[0038] FIG12 is a schematic cross-sectional view of the breathable layer and the first connecting member in FIG11 along the EE direction;

[0039] FIG13 is a bottom view of the structure of the embodiment of the third embodiment of the breathable helmet with a clamping column and a deformation groove;

[0040] FIG14 is a schematic cross-sectional view of the breathable helmet in FIG13 along the FF direction;

[0041] FIG15 is a schematic diagram of a partially enlarged structure of the G region of the breathable helmet in FIG14 ;

[0042] FIG16 is a schematic diagram of the assembly of the first connector on the contact surface of the helmet body with the breathable layer hidden in FIG13;

[0043] FIG17 is a schematic cross-sectional view of the breathable layer and the first connecting member in FIG16 along the HH direction;

[0044] FIG18 is a schematic diagram of assembling a breathable layer of a fourth embodiment of a breathable helmet provided by the present invention;

[0045] FIG19 is a schematic cross-sectional view of the breathable helmet equipped with a breathable layer in FIG18 along direction II;

[0046] FIG20 is a partial enlarged schematic diagram of region J of the breathable helmet equipped with a breathable layer in FIG19 ;

[0047] FIG21 is a schematic structural diagram of the assembly of the first connector with the breathable layer contact surface of the helmet body hidden in FIG18 ;

[0048] FIG22 is a schematic cross-sectional structural diagram of the breathable layer and the first connecting member in FIG21 along the KK direction.

[0049] Among them, the main marks of the drawings are as follows:

[0050] 1. Helmet body; 11. Buffer layer; 111. Helmet inner surface; 2. Breathable layer; 21. Flexible breathable sleeve; 211. Contact surface; 22. Air fiber lining; 221. Fiber filament; 222. Air gap; 223. Countersunk hole; 3. Connecting colloid; 31. Adhesive layer; 4. Rivet; 41. Top cap end; 42. Ball head end; 5. Rivet mounting seat; 51. Ball head bayonet; 6. First connecting piece; 61. Female buckle seat; 62. Female buckle ring; 621. Connecting cavity; 622. Inner transition step; 63. First base layer; 64. Hook surface layer; 7. Second connecting piece; 71. Bottom nail; 711. Nail cap; 712. Through nail; 72. Sub-buckle seat; 721. Base; 722. Column; 723. Socket; 724. Outer transition step; 725. Deformation groove; 73. Second base layer; 74. Fur surface layer; 8. Binding strap. DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to Figures 1-22 and embodiments.

[0052] The present invention provides a breathable helmet, comprising a helmet body 1, a connecting structure and an air fiber lining 22. The air fiber lining 22 is composed of disorderly distributed fiber filaments 221 and air gaps 222 (i.e., air gaps) formed between the fiber filaments 221. The air fiber lining 22 is connected and attached to the inner cavity surface 111 of the helmet through the connecting structure.

[0053] Please refer to Figures 1-7, in Example 1 of the breathable helmet provided by the present invention:

[0054] The connection structure is a connecting colloid 3. In a preferred embodiment, the connecting colloid 3 is a bonding layer 31 made of an adhesive, one side of the bonding layer 31 is bonded to the air fiber liner 22, and the other side of the bonding layer 31 is bonded to the inner surface 111 of the helmet. The air fiber liner 22 is bonded to the inner surface 111 of the helmet via the bonding layer 31.

[0055] In Example 1, the adhesive can be various hot melt adhesives, double-sided tapes (3M double-sided tape, acrylic double-sided tape, PET double-sided tape, PE foam double-sided tape, etc. can be selected), or glue, and is formed by applying or laminating the adhesive layer 31 on both sides. The thickness of the adhesive layer 31 is preferably 0.03-2 mm. Preferably, 0.4 mm thick acrylic double-sided tape is used to bond the adhesive layer 31 between one side of the air fiber liner 22 and the inner surface 111 of the helmet to avoid using too thin double-sided tape, which may result in low bonding strength, or too thick double-sided tape, which may result in high cost.

[0056] Please refer to Figures 6 and 7, in the second embodiment of the breathable helmet provided by the present invention:

[0057] The connection structure includes: multiple rivets 4 and multiple rivet mounting seats 5, each rivet 4 is combined with a corresponding rivet mounting seat 5; multiple rivet mounting seats 5 are installed on the helmet body 1 at intervals, the air fiber lining 22 covers the installation positions of the multiple rivet mounting seats 5 on the helmet body 1, and the air fiber lining 22 is provided with multiple countersunk holes 223 that match the shape of the rivet 4 and the position of the rivet mounting seat 5 (that is, each countersunk hole 223 is provided at the matching position of each rivet mounting seat 5 covered by the air fiber lining 22); the rivet 4 passes through the countersunk hole 223 and is engaged with the bayonet of the rivet mounting seat 5 to fix the air fiber lining 22 to the inner cavity surface 111 of the helmet.

[0058] Referring to Figure 7 , as an embodiment of the second embodiment, the rivet 4 is a mushroom rivet with a spherical head. The aforementioned bayonet is a ball bayonet 51 provided on the rivet mounting base 5 and matching the shape of the ball end 42 of the mushroom rivet. The mushroom rivet is riveted to the rivet mounting base 5 via the ball end 42 of the mushroom rivet and the ball bayonet 51. In a preferred embodiment, the rivet mounting base 5 is preferably made of plastic and fixedly mounted to the inner shell of the helmet through an integral molding process.

[0059] In one embodiment of the first and second embodiments, only one air fiber liner 22 is provided (when the air fiber liner 22 covers a large area of ​​the helmet's inner cavity surface 111), and the single air fiber liner 22 with the larger coverage area is fixedly attached to any location on the top, front, back, or left and right sides of the helmet's inner cavity surface 111. In another embodiment, multiple air fiber liners 22 are provided, and the multiple air fiber liners 22 are fixedly attached to all or part of the top, front, back, and left and right sides of the helmet's inner cavity surface 111.

[0060] The present invention also provides a helmet lining forming mold (not shown in the figure), which is used to form the air fiber lining 22 of the above-mentioned breathable helmet. The helmet lining forming mold includes:

[0061] The punch and die (preferably made of aluminum, but also steel) are processed according to the contour of the inner cavity surface 111 of the helmet, and the outer contour of the punch is matched with the contour of the inner cavity surface 111 of the helmet, and the cavity surface contour of the die matches with the outer contour of the punch, and when the helmet lining forming mold is hot-pressed, the distance between the cavity surface of the die and the outer contour of the punch is the thickness value of the air fiber lining 22 (this thickness value is preferably 10-20mm, that is, when the helmet lining forming mold is hot-pressed, the cavity surface size of the die is 10-20mm deeper than the outer contour size of the punch), so that the existing layered air fiber on the market is placed in the cavity of the helmet lining forming mold and hot-pressed to produce an air fiber lining 22 with a certain thickness and a curved surface contour matching the contour of the inner cavity surface 111 of the helmet.

[0062] A manufacturing method corresponding to the first embodiment of the breathable helmet provided by the present invention is as follows:

[0063] S1: According to the contour of the inner cavity surface 111 of the helmet, a punch having an outer contour matching the contour of the inner cavity surface 111 of the helmet and a concave mold having a cavity surface contour matching the outer contour of the punch and a cavity surface size of the concave mold being 10 mm deeper than the outer contour size of the punch during hot pressing are respectively processed and manufactured to obtain a helmet lining forming mold; S2: Selecting layered air fibers of a certain fiber material, shape, diameter, hardness, overall thickness, air volume ratio, and density, and cutting the layered air fibers into a size that matches the inner cavity surface 111 of the helmet (the specific size can satisfy that a single air fiber lining 22 covers the inner cavity surface 111 of the helmet as a whole, or that multiple air fiber liners 22 are distributed on the top, front and back sides, and left and right sides of the inner cavity surface 111 of the helmet), and then placing the cut layered air fibers into the cavity of the helmet lining forming mold, and heating Heat to 90 degrees Celsius and hot press for 5-120 seconds to obtain an air fiber lining 22 with a thickness of 10 mm and a curved surface profile and coverage area that match the profile of the helmet inner cavity surface 111; S3: Cut the acrylic double-sided tape into strips with a width of 12 mm and a length of 35 mm, and attach the adhesive surfaces of multiple acrylic double-sided tapes to the positions of the helmet inner cavity surface 111 where the air fiber lining 22 needs to be pasted, then tear off the release film on the other side of the acrylic double-sided tape, and fix a single air fiber lining 22 to the helmet inner cavity surface 111 according to actual needs, or fix multiple air fiber liners 22 to the top, front sides, and left and right sides of the helmet inner cavity surface 111, and finally press the air fiber lining 22 by hand to make the air fiber lining 22 and the helmet inner cavity surface 111 of the helmet more firmly bonded to obtain a breathable helmet. When hot melt adhesive or glue is used as the adhesive to form the bonding layer 31, the above step S3 only needs to be replaced by the step of heating the hot melt adhesive to form the bonding layer 31 and then laminating, or replaced by the step of applying glue to form the bonding layer 31 and then laminating.

[0064] Please refer to Figures 8-12, in the third embodiment of the breathable helmet provided by the present invention:

[0065] The breathable helmet also includes: a flexible breathable cover 21, the above-mentioned air fiber lining 22 is filled in the flexible breathable cover 21, and the flexible breathable cover 21 and the air fiber lining 22 constitute a breathable layer 2; at least one first connecting member 6, provided on the inner cavity surface 111 of the helmet; at least one second connecting member 7, matched with the first connecting member 6, provided on the flexible breathable cover 21 for matching the contact surface 211 connected to the inner cavity of the helmet; the breathable layer 2 is fixedly connected to the inner cavity surface 111 of the helmet through the second connecting member 7 and the first connecting member 6, and the contact surface 211 is adapted to the shape of the inner cavity of the helmet and is close to or attached to the inner cavity surface 111 of the helmet.

[0066] Please refer to Figures 8-13. In one implementation of Example 3, the first connecting member 6 is a female buckle. The first connecting member 6 includes a female buckle seat 61 and a female buckle collar 62 provided in the middle of the female buckle seat 61 and protruding relative to the female buckle seat 61, and the hollow inner side of the female buckle collar 62 forms a snap-fitting cavity 621; a buffer layer 11 is applied to the inner side of the helmet body 1, and the above-mentioned helmet inner cavity surface 111 is the surface of the buffer layer 11 applied to the inner side of the helmet body 1; the first connecting member 6 is fixedly arranged in the buffer layer 11 in an integral manner, and the snap-fitting cavity 621 is connected to the helmet inner cavity surface 111 at the opening formed at the end face of the female buckle collar 62 away from the female buckle seat 61; the second connecting member 7 is a sub-buckle, one end of the second connecting member 7 is fixedly connected to the flexible breathable sleeve 21, and the other end of the second connecting member 7 cooperates with the snap-fitting cavity 621, thereby forming a sub-female buckle structure with the first connecting member 6.

[0067] In the preferred implementation of Example 3, the second connecting member 7 includes a bottom nail 71 and a sub-buckle seat 72 respectively arranged at both ends, that is, one end of the second connecting member 7 is the bottom nail 71 fixedly connected to the flexible breathable sleeve 21, and the other end of the second connecting member 7 is the sub-buckle seat 72 that cooperates with the snap-in cavity 621 and is connected to the bottom nail 71. The bottom nail 71 includes a nail cap 711 and a through nail 712 provided in the middle of one side of the nail cap 711 and protruding outward away from the nail cap 711; the sub-button seat 72 includes a base 721 and a clamping column 722 provided in the middle of one side of the base 721 and protruding outward away from the base 721. The shape of the clamping column 722 matches the shape of the clamping cavity 621. The middle of the other side of the base 721 is provided with a socket 723 extending into the interior of the clamping column 722. The shape of the socket 723 matches the shape of the through nail 712. When the breathable layer 2 is fixedly connected to the inner surface 111 of the helmet through the first connecting member 6 and the second connecting member 7, the nail cap 711 abuts against The inner surface of the flexible breathable sleeve 21 and the base 721 are in contact with the outer surface of the flexible breathable sleeve 21, and the through nail 712 passes through the flexible breathable sleeve 21 and cooperates with the socket 723, so that the fabric on one side of the flexible breathable sleeve 21 provided with the above-mentioned contact surface 211 is in contact between the base 721 of the buckle seat 72 and the nail cap 711 of the bottom nail 71; at the same time, the clamping column 722 of the buckle seat 72 is clamped and matched with the clamping cavity 621, so that the buffer layer 11, the first connecting member 6, the second connecting member 7 and the flexible breathable sleeve 21 are connected as one, and the contact surface 211 is adapted to the shape of the helmet inner cavity and is close to or applied to the helmet inner cavity surface 111.

[0068] In another implementation of Example 3 (not shown in the figure), the second connecting member 7 only includes a bottom nail 71, which includes a nail cap 711 and a through nail 712 provided in the middle of one side of the nail cap 711 and protruding outward away from the bottom nail 71, that is, one end of the second connecting member 7 is the nail cap 711 fixedly connected to the flexible breathable sleeve 21, and the other end of the second connecting member 7 is the through nail 712 that cooperates with the clamping cavity 621 and is connected to the nail cap 711.

[0069] Please refer to Figures 9-12. In one implementation of Example 3, the female buckle seat 61 is circular (pancake or disc-shaped), and the female buckle collar 62 is cylindrical and protrudes from the middle of one side of the circular female buckle seat 61, that is, the first connecting member 6 as a whole is T-shaped along the longitudinal section perpendicular to its axis. The hollow inner side of the female buckle collar 62 forms a cylindrical clamping cavity 621 with a narrow inner diameter near the opening and a slightly wider inner diameter deep into the female buckle collar 62, that is, an inner transition step 622 is formed in the axial middle of the clamping cavity 621; the buffer layer 11 adopts a foam layer, and the female buckle is fixedly arranged in the buffer layer 11 in an integral manner. The cap 711 and base 721 are both circular (pie or disc-shaped), the through-pin 712 of the bottom pin 71 is cylindrical, and the insertion hole 723 of the base 721 is cylindrical, matching the shape of the through-pin 712. The outer shape of the post 722 of the sub-button seat 72 matches the hollow inner cylindrical engagement cavity 621 of the female buckle collar 62. The post 722 is a quasi-cylindrical post 722 with a slightly narrower outer diameter near the cap 711 and a slightly wider outer diameter at the end distal from the cap 711. Specifically, an outer transition step 724 is formed in the axial middle of the post 722, resulting in the sub-button having a T-shaped longitudinal cross-sectional projection perpendicular to its central axis. In other embodiments, the female buckle seat 61, base 721, and cap 711 may also be rectangular or polygonal (quadrangular or multi-prism-shaped), and the female buckle collar 62, through-pin 712, insertion hole 723, and post 722 may also be quadrangular or multi-prism-shaped.

[0070] Please refer to Figures 9-12. As a preferred embodiment of Example 3, the first connector 6 is fixedly disposed in the buffer layer 11 through integral foaming molding. During molding, the plastic part of the first connector 6 is pre-embedded in a fixed position in the mold cavity. The foamed granular material is absorbed and filled around the first connector 6 and wrapped inside. Steam is then introduced for foaming molding. Finally, the mold is demolded, thereby integrally forming the buffer layer 11 applied to the inner side of the helmet body 1 and the first connector 6 fixedly disposed in the buffer layer 11 through integral molding. As a more preferred embodiment, the opening of the snap-fit ​​cavity 621 formed on the end face of the female buckle collar 62 away from the female buckle seat 61 is aligned with the contour of the helmet inner cavity surface 111, so that the first connector 6 and the helmet inner cavity surface 111 are integrated. As a preferred embodiment, the second connecting member 7 is driven into the interior of the flexible breathable sleeve 21 by a button punching machine, and the bottom nail 71 and the buckle seat 72 are fixedly connected to the flexible breathable sleeve 21 corresponding to the inner and outer sides respectively at one time, so that the nail cap 711 of the bottom nail 71 abuts against the inner surface of the flexible breathable sleeve 21, and the base 721 of the buckle seat 72 abuts against the outer surface of the flexible breathable sleeve 21, that is, the fabric on one side of the flexible breathable sleeve 21 provided with the above-mentioned contact surface 211 abuts between the base 721 of the buckle seat 72 and the nail cap 711 of the bottom nail 71, and the through nail 712 extends to the outside of the flexible breathable sleeve 21 and is plugged into the socket 723, connecting the second connecting member 7 and the flexible breathable sleeve 22 as one.

[0071] Please refer to Figures 13-17. As a preferred embodiment of the third embodiment, the second connecting member 7 is made of a material with both strength and toughness, and a deformation groove 725 is provided on the end surface of the clamping column 722 away from the nail cap 711. As a more preferred embodiment, the deformation groove 725 is cylindrical, and is provided at the slightly wider portion of the outer diameter of the end of the clamping column 722 away from the nail cap 711, and extends along the axial direction of the clamping column 722 close to the nail cap 711 to the slightly narrower portion of the outer diameter of the proximal end of the clamping column 722 close to the nail cap 711, so that when the clamping column 722 is engaged with the clamping cavity 621 of the female buckle clamp 62, the above-mentioned inner transition step 622 in the middle of the clamping cavity 621 squeezes the clamping column 722, and under the elastic deformation of the clamping column 722, the deformation groove 725 is compressed and deformed, thereby reducing the size of the clamping column. The radial dimension of the slightly wider part of the outer diameter of the end 722 away from the nail cap 711 allows the clamping column 722 to pass through the inner transition step 622 smoothly. After passing through the inner transition step 622, the clamping cavity 621 becomes wider, and the clamping column 722 is released from compression and elastically returns to its original shape, thereby completely snapping into place with the clamping cavity 621, thereby improving the snapping force between the clamping column 722 and the clamping cavity 621, and making the connection between the sub-buckle and the mother buckle more secure. The user can quickly and accurately install the flexible breathable cover 21 carried with him as a helmet accessory at any time at one or more preset installation positions on the inner cavity surface 111 of the helmet.

[0072] When the breathable layer 2 needs to be removed from the inner cavity surface 111 of the helmet, it is only necessary to slightly pull the breathable layer 2 close to the second connecting piece 7, so that the clamping column 722 can overcome the friction force of the clamping cavity 621 under the action of elastic deformation, until the clamping column 722 is squeezed outward through the inner transition step 622 and completely exits the clamping cavity 621. The user can quickly remove the breathable layer 2 from the inner cavity surface 111 of the helmet at any time, which is convenient for cleaning and replacement of the lining.

[0073] In the third embodiment, the width of the deformation groove 725 is preferably 1.2 mm, and the depth is preferably 5 mm; the first connecting member 6 and the second connecting member 7 are made of plastic or metal with both strength and toughness, preferably plastic.

[0074] Please refer to Figures 18-22 together, in the fourth embodiment of the breathable helmet provided by the present invention:

[0075] The first connector 6 and the second connector 7 form a parent-child Velcro structure, wherein the first connector 6 is a parent Velcro, comprising a first base layer 63 and a hook layer 64 applied to one side of the first base layer 63. The side of the first base layer 63 facing away from the hook layer 64 is fixedly connected to the inner surface 111 of the helmet. The second connector 7 is a child Velcro, comprising a second base layer 73 and a fleece layer 74 applied to one side of the second base layer 73. The side of the second base layer 73 facing away from the fleece layer 74 is fixedly connected to the contact surface 211. In one embodiment of the fourth embodiment, the side of the first base layer 63 facing away from the hook layer 64 is fixedly connected to the inner surface 111 of the helmet by gluing, preferably using an adhesive or double-sided tape. The side of the second base layer 73 facing away from the fleece layer 74 is fixedly welded to the contact surface 211 by ultrasonic fixation. In another embodiment (not shown in the figure), the first connecting member 6 can also be a sub-sticker, and the second connecting member 7 is correspondingly replaced by a mother sticker, that is, the first connecting member 6 and its hook surface layer 64 are changed to be set on the contact surface 211, and the second connecting member 7 and its fleece surface layer 74 are correspondingly replaced to be set on the inner cavity surface 111 of the helmet.

[0076] In the fifth embodiment of the breathable helmet provided by the present invention (not shown), the first connecting member 6 is a first connecting adhesive layer, one side of which is fixedly connected to the helmet inner cavity surface 111; the second connecting member 7 is a second connecting adhesive layer, one side of which is fixedly connected to the contact surface 211, and the opposite side of the second connecting adhesive layer is fixedly connected to the opposite side of the first connecting adhesive layer facing away from the helmet body 1 (i.e., toward the interior of the helmet inner cavity). In a preferred embodiment of the fifth embodiment, the first and second connecting adhesive layers are preferably adhesive layers. The adhesive type and thickness are described in the first embodiment and will not be further described here.

[0077] In Examples 1 to 4, the fiber filaments 221 of the air fiber lining 22 are made of PP or TPEE or TPE or TPU or POE or PE polyethylene or POE resin with 5-80% PE or other resin materials added. As a preferred embodiment, the fiber filaments 221 are made of food-grade POE material so that the air fiber lining 22 composed of the disordered fiber filaments 221 and the air gaps 222 has good resilience and breathability, while ensuring that it is harmless to human skin in long-term contact and has environmental protection performance; the hardness of the fiber filaments 221 of the air fiber lining 22 is 10-90D, preferably 28D. The fiber filaments 221 with a hardness of 28D are preferred. First, to avoid the fiber filaments 221 having too low a hardness, which leads to the air fiber lining 22 being soft and insufficient in support, and second, to avoid the fiber filaments 221 having too high a hardness, which leads to the air fiber lining 22 being hard, having poor flexibility and elasticity, and thus causing a weak sense of comfort; the fiber filaments 221 are solid or hollow tubular. When the fiber diameter is less than 0.8mm, a solid fiber structure can provide better comfort. When the fiber diameter is greater than 1mm, if the fiber is a hollow tube, the softness and comfort of the fiber can be improved. The diameter of the fiber filaments 221 of the air fiber liner 22 is 0.05-2mm, preferably 0.2-1.0mm, and optimally 0.45mm. A fiber filament 221 with a diameter of 0.45mm is preferred. First, the fiber filament 221 has a relatively thin diameter, which improves flexibility and elasticity. Second, it also avoids the fiber filament 221 being too thin, which reduces the strength and support of the filament. In Examples 3 and 4, the buffer layer 11 is a foam layer made of EPS material, and its density is preferably 65g / L.

[0078] In Examples 1 to 4, the thickness of the air fiber lining 22 is 2-25 mm, preferably 10-20 mm. A preferred thickness of 10-20 mm is for the fiber filaments 221 to prevent the air fiber lining 22 from being too thin, which could cause discomfort when wearing the breathable helmet, and to prevent the air fiber lining 22 from being too thick, which could cause the air fiber lining 22 to occupy too much volume within the helmet after being attached to the inner cavity surface 111 of the breathable helmet, making it inconvenient for the rider to wear the helmet. Therefore, a suitable thickness for the air fiber layer lining is 10-20 mm. The fiber filaments 221 in the air fiber lining 22 are randomly cross-distributed and porous, and air (i.e., the air gaps 222) accounts for 50-99.8% of the volume of the air fiber lining 22, preferably 80%-98%. The air fiber liner 22 preferably has an air volume ratio of 80%-98% to maximize its air volume ratio, thereby minimizing its density, thereby reducing the overall weight of the air fiber liner 22 and the breathable helmet, and alleviating the rider's wearing burden. The density of the air fiber liner 22 is 20-150 g / L, preferably 30-100 g / L, and optimally 50 g / L. A density of 50 g / L is preferred to avoid insufficient support due to a low density, and also to avoid a high density that makes the air fiber liner 22 too stiff and reduces wearing comfort.

[0079] In Examples 1 to 4, a molding method of the air fiber lining 22 is as follows: the POE air fiber raw material is cut into air fiber blocks of a size of 200mm*160mm, and is hot-pressed and formed by a mold cavity whose shape contour matches the inner cavity surface 111 of the helmet through a hot-pressing mold, and the edges are cut, thereby obtaining a pad-shaped or sheet-shaped air fiber lining 22 having a three-dimensional contour shape that matches and fits the inner cavity surface 111 of the helmet.

[0080] Please refer to Figures 8-12. In one embodiment of the third and fourth embodiments, the flexible breathable cover 21 is made of mesh fabric. The mesh cover is wrapped and sealed around the outer surface of the air fiber liner 22 by sewing, hot pressing, high-frequency welding, or ultrasonic welding. In other embodiments, the flexible breathable cover 21 can also be made of other breathable fabrics such as cotton (pure cotton), silk, etc. In the third and fourth embodiments, multiple first connectors 6 are spaced apart and disposed on the helmet's inner cavity surface 111. Multiple second connectors 7 are spaced apart and disposed in a manner that matches the first connectors 6 on the contact surface 211 of the flexible breathable cover 21 that contacts the helmet's inner cavity. In one embodiment of the third and fourth embodiments, a single breathable layer 2 is provided, and the dimensions of the flexible breathable cover 21 outside the breathable layer 2 match the area of ​​the helmet's inner cavity surface 111. Four first connectors 6 are evenly spaced apart and disposed on the helmet's inner cavity surface 111. Four second connectors 7 are evenly spaced apart and disposed in a manner that matches the first connectors 6 on the contact surface 211 of the flexible breathable cover 21 that contacts the helmet's inner cavity. In another embodiment of Examples 3 and 4, two or more breathable layers 2 are provided, and multiple first connectors 6 are distributed at intervals on the inner cavity surface 111 of the helmet. The flexible breathable covers 21 of the two or more breathable layers 2 are each matched with the contact surface 211 of the inner cavity of the helmet and are provided with at least one second connector 7. Each breathable layer 2 is distributed at intervals on the inner cavity surface 111 of the helmet in matching with the first connector 6 through its own second connector 7.

[0081] In Example 3, one method for forming the breathable layer 2 is as follows: a mesh fabric with a mesh diameter of 2 mm and a weight per unit area of ​​150 g / m² is selected. Four sub-buttons (second connectors 7) are punched and fixedly positioned on the mesh fabric at locations corresponding to the contact surface 211 using a button punch. The mesh fabric is sewn into a mesh cover as the flexible breathable cover 21. The mesh cover wraps around the entire air fiber lining 22 along its outer surface to form the breathable layer 2. The four second connectors 7 are positioned on the side of the breathable layer 2 facing the helmet inner cavity surface 111 (i.e., toward the helmet body 1). The fastening direction of the latching posts 722 of the four second connectors 7 (i.e., the direction of insertion and engagement with the latching cavities 621 of the female buckle collar 62) faces the helmet inner cavity surface 111 and aligns with the predetermined positions of the female buckles (first connectors 6) on the helmet inner cavity surface 111.

[0082] In Example 3, another method for forming the breathable layer 2 is as follows: a mesh fabric with a mesh diameter of 2 mm and a weight per unit area of ​​150 g / m2 is selected. Four second connectors 7 are inserted and fixedly positioned at positions corresponding to the aforementioned contact surfaces 211 of the mesh fabric using a button punch. The mesh fabric is then ultrasonically welded to wrap the entire air fiber liner 22 along its outer surface. After ultrasonic welding completes the formation of a closed mesh cover, a die cutter is used to cut away the remaining protruding fiber filaments 221 and the fabric from the edges of the mesh cover, thereby forming the breathable layer 2. Ultrasonic molding of the breathable layer 2 allows for standardized processing of the mesh cover, resulting in high molding efficiency. To connect the breathable layer 2 to the helmet body 1, the user simply places the breathable layer 2 into the helmet's interior cavity. The contact surfaces 211 of the breathable layer 2, provided with the four second connectors 7, are aligned with the helmet's interior cavity surface 111. The four second connectors 7 are then snap-fitted to the four first connectors 6 on the helmet's interior cavity surface 111, forming a breathable helmet.

[0083] In Example 4, one method for forming the breathable layer 2 is as follows: a mesh fabric with a mesh diameter of 2 mm and a unit area weight of 150 g / m² is selected. The second base layer 73 of four 25 mm diameter sub-strips (second connectors 7) are ultrasonically welded to the mesh fabric at locations on the mesh fabric corresponding to the contact surface 211. The mesh fabric is sewn into a mesh cover as the flexible breathable cover 21. The mesh cover wraps the entire air fiber lining 22 along its outer surface, thereby forming the breathable layer 2. The four second connectors 7 are positioned on the side of the breathable layer 2 facing the helmet inner cavity surface 111 (i.e., toward the helmet body 1). The fleece layers 74 of the four second connectors 7 face the helmet inner cavity surface 111 and align with the predetermined positions of the respective mother patches (first connectors 6) on the helmet inner cavity surface 111.

[0084] In Example 4, another method for forming the breathable layer 2 is as follows: a mesh fabric with a mesh diameter of 2 mm and a unit area weight of 150 g / m² is selected. Four second connecting members 7, each with a diameter of 25 mm, are ultrasonically welded to the mesh fabric at locations corresponding to the contact surfaces 211. The mesh fabric is then ultrasonically welded around the outer surface of the air fiber liner 22, wrapping the entire air fiber liner 22. After ultrasonic welding completes the formation of a closed mesh fabric cover, a die cutter is used to cut away the remaining protruding fiber filaments 221 and fabric from the edges of the mesh fabric cover, thereby forming the breathable layer 2. When the user connects the breathable layer 2 to the helmet body 1, he only needs to first adhere the first base layers 63 of the four first connecting members 6 to the corresponding positions of the helmet inner cavity surface 111 using double-sided tape, then place the breathable layer 2 into the helmet inner cavity, and the contact surfaces 211 of the four second connecting members 7 provided on the breathable layer 2 are adhered to the helmet inner cavity surface 111. Then, the fleece layers 74 of the four second connecting members 7 are pressed and bonded to the hook layers 64 of the four first connecting members 6 on the helmet inner cavity surface 111 respectively, to form a breathable helmet.

[0085] In another embodiment combining Example 3 and Example 4, the surface of the air fiber lining 22 is uneven. If a thinner single-layer mesh cloth is selected to make the flexible breathable cover 21, the breathable layer 2 composed thereof is not comfortable. Therefore, it is preferred to use two or more layers of mesh cloth to prepare the flexible breathable cover 21 with the air fiber lining 22.

[0086] In Examples 1 to 4, the helmet body 1 is a cycling helmet, the inner side of which is coated with the aforementioned buffer layer 11. The helmet body 1 can be a cycling helmet for an electric vehicle (preferably a shared electric vehicle), a motorcycle helmet, a bicycle helmet, or the like. The breathable helmet further includes a strap 8 provided on the helmet body 1. In other embodiments, the helmet body 1 can also be a snow helmet, a mountaineering helmet, or the like.

[0087] When the breathable helmet provided by the present invention is worn on the rider's head, the outer flexible breathable cover 21 of the breathable layer 2 attached to the inner cavity surface 111 of the helmet directly contacts the head, or the head is separated from the inner cavity surface 111 of the helmet by the air fiber lining 22 inside the breathable layer 2. The high air gap, high elasticity and support of the air fiber lining 22 are utilized to enable the breathable layer 2 to provide large deformation while maintaining softness and breathability, thereby avoiding the problem that the inner cavity surface 111 of the helmet does not match the shape of the head when the inner cavity surface 111 of the traditional cycling helmet directly contacts the rider's head or indirectly contacts the rider's head through the sponge cloth combination lining, thereby improving the wearing comfort of the cycling helmet and the adaptability to different head shapes.

[0088] At the same time, this breathable helmet utilizes the relatively large volume of air gaps within the air fiber lining 22 (or a separate air fiber lining 22) of the breathable layer 2 to allow the rider's head to pass through the air fiber lining 22 within the breathable layer 2 and the outer flexible breathable cover 21. Combined with the high air flow rate near the head during riding, this allows for efficient and rapid ventilation and heat exchange between the rider's head and the surrounding environment. This allows sweat to quickly dry during hot summer weather, avoiding the stuffiness and discomfort associated with long-term use of traditional sponge-lined helmets, as well as the hygienic issues of traditional sponge-lined helmets, such as difficulty in cleaning, mold, odor, and bacterial breeding, caused by sweat absorption and hair oil accumulation. This further enhances the user experience and environmental adaptability of the cycling helmet. This breathable helmet also offers the advantages of convenient and quick removal and cleaning of the breathable layer 2 as a helmet lining, making it flexible to use.

[0089] In addition, the breathable helmet can also form an elastic support for the rider's head through the breathable layer 2 or directly through the air fiber lining 22. If the rider falls during riding and his head is impacted or colliding, the fiber filaments 221 randomly and staggeredly distributed in the air fiber lining 22 will stretch and deform, causing the head to slide relative to the helmet after the collision, thereby buffering the rotational impact force on the rider's head and reducing the damage to the head and brain caused by the collision rotational impact force.

[0090] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A breathable helmet, comprising a helmet body, characterized in that: Also includes: A connecting structure and an air fiber lining, wherein the air fiber lining is composed of disorderly distributed fiber filaments and air gaps, and the air fiber lining is connected and attached to the helmet inner cavity surface of the helmet body through the connecting structure.

2. The breathable helmet according to claim 1, characterized in that: The connection structure is a connection colloid.

3. The breathable helmet according to claim 2, characterized in that: The connecting colloid is a bonding layer composed of an adhesive, one side of the bonding layer is bonded to the air fiber lining, and the other side of the bonding layer is bonded to the inner cavity surface of the helmet.

4. The breathable helmet according to claim 1, characterized in that: The connection structure comprises: A plurality of rivets and a plurality of rivet mounting seats, wherein the plurality of rivet mounting seats are installed at intervals on the helmet body, and the air fiber lining is provided with a plurality of countersunk holes matching the shapes of the rivets and the positions of the rivet mounting seats, and the rivets pass through the countersunk holes and are matched and snap-fitted with the bayonet of the rivet mounting seats to fix the air fiber lining to the inner cavity surface of the helmet.

5. The breathable helmet according to claim 4, characterized in that: The rivet is a mushroom nail, the rivet mounting seat is a mushroom nail mounting seat, the bayonet is a ball head bayonet provided on the mushroom nail mounting seat and matching the shape of the ball head end of the mushroom nail, and the mushroom nail is riveted to the mushroom nail mounting seat through the cooperation of its ball head end and the ball head bayonet.

6. The breathable helmet according to claim 1, wherein: Also includes: A flexible breathable cover, wherein the air fiber liner is filled in the flexible breathable cover, and the flexible breathable cover and the air fiber liner form a breathable layer; The connection structure comprises: At least one first connecting member, disposed on the inner cavity surface of the helmet; At least one second connecting member, matched with the first connecting member, is arranged on the contact surface of the flexible breathable sleeve matching the inner cavity of the helmet; The air permeable layer is connected to the inner cavity surface of the helmet through the second connecting piece in cooperation with the first connecting piece, and the contact surface is close to or attached to the inner cavity surface of the helmet.

7. The breathable helmet according to claim 6, characterized in that: The first connecting member is a female buckle, and the female buckle includes a female buckle seat and a female buckle collar arranged in the middle of the female buckle seat, and the hollow inner side of the female buckle collar forms a clamping cavity; The breathable helmet further comprises a buffer layer attached to the inner side of the helmet body, the inner cavity surface of the helmet is the surface of the buffer layer, the female buckle is integrally formed and arranged in the buffer layer, and the opening of the clamping cavity formed at the end surface of the female buckle collar away from the female buckle seat is connected to the inner cavity surface of the helmet; The second connecting member is a sub-buckle, one end of which is fixedly connected to the flexible breathable sleeve, and the other end of which cooperates with the clamping cavity.

8. The breathable helmet according to claim 7, characterized in that: The buckle comprises a bottom nail and a buckle seat respectively arranged at two ends of the buckle; The bottom nail comprises a nail cap and a through nail arranged in the middle of one side of the nail cap; The sub-buckle seat includes a base and a clamping column arranged on one side of the base, the shape of the clamping column matches the shape of the clamping cavity, and the other side of the base is provided with a plug hole extending into the inside of the clamping column, and the shape of the plug hole matches the shape of the piercing nail; The nail cap abuts against the inner surface of the flexible breathable sleeve, the base abuts against the outer surface of the flexible breathable sleeve, the through nail passes through the flexible breathable sleeve and matches with the insertion hole, and the clamping column matches with the clamping cavity.

9. The breathable helmet according to claim 8, characterized in that: The end surface of the clamping column away from the nail cap is provided with a deformation groove.

10. The breathable helmet according to claim 6, characterized in that: The first connecting member comprises a first base layer and a hook surface layer applied on one side of the first base layer, and a side of the first base layer facing away from the hook surface layer is fixedly connected to the inner cavity surface of the helmet; The second connecting member includes a second base layer and a matte layer applied on one side of the second base layer, and a side of the second base layer facing away from the matte layer is fixedly connected to the contact surface.

11. The breathable helmet according to claim 1, characterized in that: The fiber filament is solid or hollow tube-shaped.

12. The breathable helmet according to claim 6, characterized in that: A plurality of the first connecting members are arranged at intervals and distributed on the inner cavity surface of the helmet, and a plurality of the second connecting members are arranged at intervals and distributed on the contact surface in a manner matching the first connecting members.

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