Sports protective helmet with brim

Abstract

The utility model relates to the technical field of helmets, in particular to a sports protective helmet with a brim, which is improved on the basis of the existing helmet with the brim and comprises a helmet body and a brim structure. And the brim structure is arranged at the top of the helmet body. The shape of the brim structure is set as follows: in the use process of the helmet, when a fluid medium flows from the front of the brim structure to the rear of the brim structure, a pressure difference is generated between the upper surface and the lower surface of the brim structure, and upward lifting force perpendicular to the chord line direction of the brim is generated. Therefore, while the safety performance is ensured, the upward lift force generated by the brim structure can be utilized to reduce the pressure of the sports protection helmet on the human body, so that the bearing weight of a wearer in the high-speed driving process is reduced, and the wearing comfort is improved.

Description

Technical Field

[0001] This utility model belongs to the field of helmet technology, and in particular relates to a sports protective helmet with a brim. Background Technology

[0002] Existing motorcycle helmets include standard full-face helmets, three-quarter-length helmets, half-face helmets, off-road helmets, and rally helmets. Helmets such as off-road and rally helmets, for example, have built-in visors to block sunlight. Due to their excellent protective performance, wide field of vision, and aesthetically pleasing appearance, their application is no longer limited to off-road and rally motorcycles. Meanwhile, with continuous technological advancements, various devices can be added to helmets, such as cameras, navigation devices, and communication devices. However, the addition of these devices increases the weight of the helmet, especially for off-road and rally helmets, which are already quite heavy. Adding more devices will put pressure on the wearer's head and neck, leading to fatigue and injury during prolonged wear. To reduce helmet weight, current technologies generally use carbon fiber composite materials; however, these materials are expensive, and the minimum amount used while ensuring safety has been reached, leaving no room for further weight reduction. In addition, some existing technologies employ the method of adding additional protruding structures to the helmet to reduce weight during use. For example, US patent application US4038700A and Chinese patent application CN114617327A both utilize this technique. Taking Chinese patent application CN114617327A as an example, it discloses a helmet and a method of use. The helmet includes a helmet body and a wing. The wing is located on the outside of the helmet body, and its shape and / or position are configured to generate lift vertically upwards along the chord of the wing during use. The wing is a symmetrical or lifting airfoil, and it can be folded and / or detached. The wing is horizontally or vertically positioned. The helmet includes a helmet body and a shroud attached to the helmet body. However, this requires adding structures such as the wing to the helmet. These additional protruding structures not only increase the weight and cost of the helmet and reduce the installation space for additional accessories, but also increase the space occupied by the helmet. Therefore, there is an urgent need for a helmet that does not require additional structural components and can reduce the overall weight. Utility Model Content

[0003] In view of this, the present invention aims to improve the existing helmets with brims and provide a sports protective helmet with a brims. While ensuring safety performance, it can reduce the pressure of the sports protective helmet on the human body during use, reduce the weight of the helmet borne by the wearer during use, and improve wearing comfort.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A sports protective helmet includes: a helmet body; a brim structure disposed on the top of the helmet body; the brim structure is shaped such that, during helmet use, a fluid medium flows from the front to the rear of the brim structure, creating a pressure difference between the upper and lower surfaces of the brim structure, thereby generating an upward lift force perpendicular to the chord direction of the brim.

[0006] Furthermore, the brim structure is either a symmetrical airfoil or a lifting airfoil.

[0007] Furthermore, the brim structure is located on the top of the helmet body through one or more connection points.

[0008] Furthermore, the brim structure is a hollow structure, consisting of an outer layer and an internal cavity.

[0009] Furthermore, the brim structure includes an outer layer and an inner core layer, the inner core layer being made of lightweight materials.

[0010] Furthermore, the material of the outer cladding of the brim structure is wood, plastic, metal, and / or composite material.

[0011] Furthermore, the outer cladding of the brim structure is made of carbon fiber reinforced composite material.

[0012] Furthermore, the outer surface of the outer cladding is smooth, with a surface roughness Ra≤0.8μm.

[0013] Furthermore, the brim structure is detachably mounted on the top of the helmet body; or, the brim structure is integrally mounted on the top of the helmet body.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0015] This utility model relates to a sports protective helmet with a visor. It eliminates the need for additional structural components on existing helmets. By improving the visor structure of existing sports protective helmets with visors (such as off-road helmets and rally helmets), the visor structure is designed such that, during helmet use, the fluid medium flows from the front to the rear of the visor structure, creating a pressure difference between the upper and lower surfaces. This generates an upward lift force perpendicular to the chord direction of the visor, reducing the weight of the helmet on the wearer, alleviating neck pressure, improving wearing comfort, and reducing fatigue. The visor structure of this utility model reduces turbulence and wind noise, further enhancing wearing comfort. Furthermore, since this helmet does not require additional protruding structures on existing helmets, it does not increase the helmet's weight, cost, or space requirements. It also does not encroach on the installation space available for additional equipment such as cameras and communication devices. It allows for the use of low-cost, high-strength materials while maintaining safety performance, significantly reducing production costs and making it suitable for mass production. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a three-dimensional schematic diagram of the sports protective helmet with a brim as described in an embodiment of the present utility model;

[0018] Figure 2 This is a front view of the sports protective helmet with a brim as described in this embodiment of the utility model;

[0019] Figures 3-5 This is a cross-sectional view along the BB direction of the sports protective helmet with a brim described in this embodiment of the present invention; wherein, Figure 3 The brim structure is shown to be a symmetrical airfoil cross-section. Figure 4 and Figure 5 The brim structure is shown to be a lifting airfoil cross-section;

[0020] Figure 6 This is a cross-sectional view of the sports protective helmet with a brim described in this embodiment of the present invention along the direction of AA;

[0021] Figure 7 This is a side view of the sports protective helmet with a brim as described in an embodiment of the present invention;

[0022] Figure 8 This is a top view of the sports protective helmet with a brim as described in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Sports protective helmet; 11. Helmet body; 12. Brim structure; 13. Upper surface; 14. Lower surface. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and do not constitute a limitation thereof. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to enable a better understanding of the present utility model. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present utility model are not shown or described in the specification. This is to avoid obscuring the core parts of the present utility model with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this utility model can be combined to form various implementation methods. Furthermore, the order of the steps or actions in the method description can be changed or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various orders in the specification and drawings are merely for the clear description of a particular embodiment and do not imply a mandatory order, unless otherwise stated that a particular order must be followed.

[0027] In the description of this utility model, 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," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] See Figures 1 to 8 As shown, this utility model improves upon existing helmets with visors (such as off-road helmets and rally helmets) by providing a sports protective helmet 10 with a visor. The sports protective helmet 10 can be worn while driving in vehicles such as racing cars, bicycles, and motorcycles to ensure the wearer's driving safety. The sports protective helmet 10 includes a helmet body 11 and a visor structure 12.

[0031] The helmet body 11 can be worn on the wearer's head. A brim structure 12 is located on the top of the helmet body 11. In one embodiment, the brim structure 12 is detachably located on the top of the helmet body 11, allowing for replacement to suit different usage scenarios. For example, the brim structure 12 can be attached to the top of the helmet body 11 via a snap-fit ​​connection, threaded connection, or other connection methods. In other embodiments, the brim structure 12 can also be integrally located on the top of the helmet body 11. The brim structure 12 serves to provide sun protection, rain protection, and prevent obstruction of vision by tree branches or other obstacles. The shape of the brim structure 12 is designed such that during the use of the sports protective helmet 10 (e.g., when the wearer of the sports protective helmet 10 is driving a motorcycle or racing car at high speed), a fluid medium (wind) flows from the front to the rear of the brim structure, creating a pressure difference between the upper surface 13 and the lower surface 14 of the brim structure 12. This generates an upward lift force perpendicular to the chord direction of the brim structure 12, thereby reducing the weight of the sports protective helmet 10 borne by the wearer and improving wearing comfort. Meanwhile, since existing helmets (such as off-road helmets and rally helmets) already have brims, this utility model only changes the shape of the helmet's brims structure. There is no need to set additional protruding structures on the helmet, so it will not increase the space occupied by the sports protective helmet, nor will it occupy the installation space on the helmet for additional auxiliary equipment such as cameras and communication devices. Moreover, the weight borne by the wearer during use is reduced. Therefore, researchers can use expensive lightweight materials without having to consider the weight of the helmet when designing it. Low-cost high-strength materials can be used while ensuring safety performance, significantly reducing production costs and making it suitable for mass production.

[0032] like Figure 1 , Figure 2 , Figure 6 As shown, where, Figure 6 This invention illustrates the brim of a sports protective helmet with a visor as described in an embodiment of the present invention. Figure 2 The cross-sectional view at point AA shows the sports protective helmet 10 with a brim of this invention. The brim structure 12 is connected to the helmet body 11 through three connection points: the brim structure 12 is connected to the helmet body 11 through its two ends and the middle of its rear edge. It should be noted that this invention does not limit the number of connection points. Any connection arrangement that connects the brim structure 12 to the helmet body 11 should fall within the protection scope of this invention. For example, the brim structure 12 can also be connected to the helmet body 11 through two connection points (e.g., the two ends of the brim structure 12), or it can be connected to the helmet body 11 through one connection point (e.g., the middle of the rear edge of the brim structure).

[0033] like Figures 1-5 As shown, where, Figures 3-5The present invention illustrates a sports protective helmet 10 with a brim according to an embodiment of the present invention. Figure 2 A cross-sectional view along the direction of BB in the middle. Figure 3 The brim structure 12 shown is a case where the cross-section is a symmetrical airfoil. Figure 4 and Figure 5 The diagram illustrates a case where the brim structure 12 is a lifting airfoil cross-section, with the dashed lines representing the chord lines of the brim structure 12. It is understood that the symmetrical airfoil can also be plate-shaped, and the lifting airfoil can include other airfoil structures capable of generating lift; this embodiment is only used to illustrate its principle. The symmetrical airfoil brim structure 12 is positioned at the top of the helmet body 11 and has a certain angle of attack to generate lift; the lifting airfoil brim structure 12 may or may not have an angle of attack, relying on its asymmetrical structure to generate lift. When a fluid medium (e.g., air) flows from the front to the rear of the brim structure 12 (e.g., when the wearer of the sports protective helmet 10 is driving a motorcycle or racing car at high speed), a pressure difference is generated between the upper surface 13 and the lower surface 14 of the brim structure 12, thereby generating lift perpendicular to the chord line of the brim structure 12, reducing the pressure of the sports protective helmet 10 on the human body. It should be noted that... Figure 6 The image shows the brim of a sports protective helmet with a visor according to an embodiment of the present invention. Figure 2 A cross-sectional view along the direction of point AA, wherein, Figure 6 This illustrates the case where the brim structure 12 has a lifting airfoil cross-section, which is similar to... Figure 4 The same applies to the case where the brim structure 12 has a lifting airfoil cross-section; however, this utility model is not limited to sports protective helmets with brims. Figure 2 The shape of the airfoil section in the cross-sectional view at point AA can also be other airfoils, for example, it can also be as follows: Figure 3 The case of the symmetrical airfoil cross section shown can also be as follows: Figure 5 The diagram shows the cross-section of the lifting airfoil. It is understood that during use, the position or orientation of the sports protective helmet 10 may change. For example, if the sports protective helmet 10 is tilted, the position or orientation of the brim structure 12 will also change accordingly. Therefore, the direction of the lift force perpendicular to the chord of the brim structure 12 will change. However, there must be an upward vertical component, which can at least partially offset the weight of the sports protective helmet 10, thereby reducing the pressure of the sports protective helmet 10 on the human body.

[0034] In some embodiments, for the brim structure 12 of the lifting airfoil, the relative radius of the leading edge of the brim structure 12 ranges from 2.2%c to 3%c, the brim structure 12 has a sharp trailing edge, the relative thickness of the brim structure 12 is 12.6%c, and the relative curvature of the brim structure 12 ranges from 4.1%c to 4.5%c. The remaining parameters can be set with reference to the parameters of the existing aircraft wing lifting airfoil Clark Y. Wherein, c is the chord length of the brim structure 12. Since the usage environment of the sports protective helmet 10 is different from that of an aircraft flying at high speed, the specific setting parameters of the brim structure 12 of the lifting airfoil are different from those of the aircraft wing. Through the applicant's painstaking innovative design, the sports protective helmet 10 with a brim of this utility model, through the above settings, can maximize the lift generated by the brim structure 12 during use, reduce the pressure of the sports protective helmet 10 on the human body, and reduce the generation of turbulence and wind noise, thereby further improving the wearing comfort of the sports protective helmet 10.

[0035] In some embodiments, the brim structure 12 may be made of wood, plastic, metal, and / or composite materials. Preferably, the brim structure 12 is made of a lightweight, high-strength material, such as carbon fiber reinforced composite material. This reduces the physical weight of the sports protective helmet 10 while ensuring its safety performance, thereby further reducing the weight borne by the wearer during helmet use and greatly improving the wearer's comfort.

[0036] In one embodiment, the brim structure 12 is a hollow structure, including an outer layer and an inner cavity. The outer layer can be made of wood, plastic, metal, and / or composite materials. Preferably, the outer layer is made of a lightweight, high-strength material, such as carbon fiber reinforced composite material. In another embodiment, the brim structure 12 includes an outer layer and an inner core layer. The outer layer can be made of wood, plastic, metal, and / or composite materials. Preferably, the outer layer is made of a lightweight, high-strength material, such as carbon fiber reinforced composite material. The inner core layer is made of a lightweight material, such as EPS lightweight foam, EPP lightweight foam, or aerogel. The outer surface of the outer layer is smooth, with a surface roughness Ra ≤ 0.8 μm. This design significantly reduces manufacturing costs and, while ensuring safety performance, reduces the weight of the sports protective helmet 10, further improving wearer comfort. The smooth outer surface of the outer layer allows fluid media (such as air) to flow more smoothly through the brim structure 12, reducing air resistance and further reducing wind noise.

[0037] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sports protective helmet with a brim, characterized in that, The helmet comprises: a helmet body; a brim structure arranged on the top of the helmet body; the brim structure is shaped to generate a pressure difference between the upper surface and the lower surface of the brim structure during use of the helmet, so that a fluid medium flows from the front to the back of the brim structure, and an upward lift perpendicular to the chord direction of the brim is generated.

2. A sport protective helmet with a brim as defined in claim 1, characterized in that The brim structure is a symmetrical airfoil or a lift airfoil.

3. The sport protective helmet with a brim of claim 1, wherein, The brim structure is arranged on the top of the helmet body through one or more connecting points.

4. The sports protective helmet of claim 1, wherein The brim structure is a hollow structure comprising an outer cladding layer and an internal cavity.

5. The sports protective helmet of claim 1, wherein The brim structure comprises an outer cladding layer and an inner core layer, and the inner core layer is made of a light material.

6. A sports protective helmet according to claim 4 or 5, characterised in that, The material of the outer cladding layer of the brim structure is wood, plastic, metal and / or composite material.

7. The sports protective helmet of claim 6, wherein The material of the outer cladding layer of the brim structure is carbon fiber reinforced composite material.

8. A protective sports helmet according to claim 4 or 5, wherein The outer surface of the outer cladding layer is smooth, and the surface roughness Ra is less than or equal to 0.8 μm.

9. The sports protective helmet of claim 1, wherein The brim structure is detachably arranged on the top of the helmet body; or The brim structure is integrally arranged on the top of the helmet body.

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