Front shield structure of motorcycle helmet

Abstract

The utility model discloses a front shield structure of a motorcycle helmet, and relates to the field of front shield structures of helmets. The helmet ventilation assembly comprises the front blocking cover and the helmet, the front blocking cover comprises a blocking cover body, a heat dissipation mechanism, a magnetic attraction ring, a bearing and air guide blades are arranged, the magnetic attraction ring is matched with a magnetic block groove in a magnetic attraction mode, tool-free rapid disassembly and assembly of the heat dissipation mechanism are achieved, and the problem that a traditional helmet ventilation assembly needs to be disassembled violently, and consequently the structure is damaged is solved; meanwhile, insect remains or dust on the surfaces of the air guide blades can be cleaned conveniently after riding, the respiratory disease infection risk is reduced, the flow guide grooves are formed in the surfaces of the air guide blades, therefore, the blade angles can be automatically adjusted through head-on airflow in the riding process, the vortex pressurization effect is formed, and the air flow speed in the helmet is increased; meanwhile, muscle spasm caused by directly blowing the face is avoided, the asymmetric flow guide structure can guide airflow to form a negative pressure area along the edge of the lens, and fogging of the lens is effectively restrained.

Description

Technical Field

[0001] This utility model relates to the field of helmet front visor structure, specifically a motorcycle helmet front visor structure. Background Technology

[0002] The motorcycle helmet front visor is a composite protective component that integrates windproof, insectproof, fogproof and vision-optimizing functions. It is usually made of high-transparency polycarbonate or impact-resistant resin. The visor is an outer protective lens that can slide up and down and can be quickly opened and closed through a dual-rail sliding system.

[0003] However, the ventilation holes in current motorcycle helmets, especially full-face helmets, are either designed to be too small, resulting in poor ventilation, or if the ventilation holes are designed to be too large, the strong airflow during high-speed riding will cause spasmodic soreness in the facial muscles due to the continuous resistance to wind pressure, especially affecting weak areas such as the cheekbone and jaw. After wearing the helmet for a long time, temporary facial nerve paralysis may even occur when removing the helmet. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a motorcycle helmet front visor structure to solve the technical problem that traditional ventilation hole designs cannot simultaneously achieve efficient ventilation and wind pressure resistance comfort.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a motorcycle helmet front visor structure, including a front visor and a helmet, the front visor including a visor body, the outer surface of the visor body having a mounting groove and a plurality of magnetic block grooves arranged in a ring array, a heat dissipation mechanism installed in the mounting groove, and the heat dissipation mechanism being fixed in the mounting groove by magnetic attraction, including a magnetic ring, a bearing, a guide vane and a rotating baffle with a limiting function.

[0006] By adopting the above technical solution, the heat dissipation mechanism is magnetically fixed to the mounting slot of the front cover, enabling quick installation and removal of the heat dissipation mechanism and facilitating users to adjust the ventilation volume according to actual needs. Simultaneously, the design of the air guide vanes effectively guides airflow, improving ventilation efficiency, while rotating the baffles allows for adjustment of the air intake volume when needed, thus balancing efficient ventilation with wind pressure resistance and comfort.

[0007] Furthermore, the heat dissipation mechanism includes a magnetic ring, and a bearing is mounted on the inner side of the magnetic ring via a connecting rod, and a guide vane is mounted on the bearing.

[0008] By adopting the above technical solution, the magnetic connection between the magnetic ring and the mounting slot ensures the stable installation of the heat dissipation mechanism, while the bearing setting allows the air guide blades to rotate freely according to the airflow direction, further optimizing the ventilation effect.

[0009] Furthermore, the surface of the air guide blade is provided with a flow guiding groove, and the flow guiding groove is used for further air guiding.

[0010] By adopting the above technical solution, the design of the airflow guide groove can more effectively guide the airflow, reduce the separation of airflow on the blade surface, thereby improving ventilation efficiency and reducing wind resistance.

[0011] Furthermore, the back of the magnetic ring is arranged in a ring array with multiple magnetic blocks at equal intervals, and the multiple magnetic blocks are magnetically attracted to the magnetic block slots.

[0012] By adopting the above technical solution, the magnetic attraction connection between multiple magnetic blocks and magnetic block slots enhances the connection stability between the heat dissipation mechanism and the front cover, preventing the heat dissipation mechanism from falling off due to vibration during riding.

[0013] Furthermore, a rotating baffle is rotatably connected to the outer surface of the magnetic ring. The rotating baffle is an arc-shaped thin sheet, and its rotation trajectory forms a mechanical stop structure with the limiting sheet.

[0014] By adopting the above technical solution, the design of the rotating baffle allows users to adjust the air intake volume according to actual needs. When it is necessary to increase the air intake volume, the rotating baffle can be rotated to move it away from the limiting plate; when it is necessary to decrease the air intake volume, the rotating baffle can be rotated to move it closer to the limiting plate until the desired position is reached.

[0015] Furthermore, a limiting piece is provided on one side of the outer surface of the magnetic ring, and the limiting piece is used to restrict the rotation of the baffle.

[0016] By adopting the above technical solution, the setting of the limiting plate ensures that the rotating baffle can only rotate within a certain range, preventing damage to the heat dissipation mechanism or affecting the ventilation effect due to excessive rotation.

[0017] Furthermore, a helmet is provided on the back of the front visor, the helmet including a helmet body, and the two sides of the helmet body are connected to the front visor via rotating seats.

[0018] By adopting the above technical solution, the helmet body and the front visor are connected by a rotating seat, realizing the flipping function of the front visor, which makes it easier for users to put on and take off the helmet, while improving the practicality and comfort of the helmet.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model incorporates a heat dissipation mechanism, a magnetic ring, bearings, air guide vanes, a rotating baffle, a limiting plate, and a magnetic block. The magnetic ring and magnetic block grooves work together to enable tool-free, quick assembly and disassembly of the heat dissipation mechanism, solving the problem of structural damage caused by the need for forceful disassembly of traditional helmet ventilation components. It also facilitates cleaning insect remains or dust from the air guide vanes after riding, reducing the risk of respiratory infections. Furthermore, the air guide vane surface has guiding grooves, allowing the vane angle to automatically adjust using the oncoming airflow during riding, creating a vortex-like pressure boost. The effect increases the airflow velocity inside the helmet while avoiding muscle spasms caused by direct airflow onto the face. Its asymmetrical airflow guiding structure can guide airflow to form a negative pressure zone along the edge of the lens, effectively suppressing lens fogging. In addition, the mechanical stop structure composed of the rotating baffle and the limiting plate allows the rider to move the baffle to three positions of fully open / half open / closed with one hand while riding. This can cope with scenarios such as fully closing to prevent backflow during sudden rainstorms, fully opening for strong ventilation in hot and stuffy conditions, or tactical silence with half opening for low wind noise. Its arc-shaped thin plate design can reduce airflow disturbance noise by 20 decibels. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0023] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Front shield; 101. Shield body; 102. Mounting slot; 103. Magnetic block slot; 2. Helmet; 201. Helmet body; 202. Rotating seat; 3. Heat dissipation mechanism; 301. Magnetic ring; 302. Bearing; 303. Air guide vane; 304. Rotating baffle; 305. Limiting plate; 306. Magnetic block. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] A motorcycle helmet front visor structure, such as Figures 1-4As shown, the helmet includes a front visor 1 and a helmet 2. The front visor 1 includes a visor body 101. The outer surface of the visor body 101 has a mounting groove 102 and multiple magnetic block slots 103 arranged in a ring array. A heat dissipation mechanism 3 is installed in the mounting groove 102 and is fixed in the mounting groove 102 by magnetic attraction. The heat dissipation mechanism 3 includes a magnetic ring 301, a bearing 302, a guide vane 303, and a rotating baffle 304 with a limiting function. By opening the mounting groove 102 and the magnetic block slots 103 on the front visor 1, the modular installation of the heat dissipation mechanism 3 is realized. This not only simplifies the assembly process but also ensures the stability of the heat dissipation mechanism 3 by magnetic attraction. At the same time, it is convenient for users to quickly disassemble or replace the heat dissipation mechanism 3 according to riding needs, thus improving the practicality and maintenance convenience of the helmet.

[0028] See Figure 1 , Figure 4 The heat dissipation mechanism 3 includes a magnetic ring 301. A bearing is mounted on the inner side of the magnetic ring 301 via a connecting rod, and a guide vane 303 is mounted on the bearing. The combination of the magnetic ring 301 and the bearing 302 allows the guide vane 303 to rotate freely to adapt to different wind directions, thereby maximizing ventilation efficiency. At the same time, the introduction of the bearing 302 reduces friction during blade rotation, lowers noise, and improves riding comfort.

[0029] See Figure 1 , Figure 2 The air guide vane 303 has airflow grooves on its blade surface, which are used to further guide the airflow. The design of the airflow grooves can more precisely control the airflow direction, reduce turbulence on the blade surface, thereby reducing wind resistance and improving ventilation efficiency. This design is especially crucial at high speeds, as it can effectively reduce the impact of wind pressure on the rider's head and improve comfort.

[0030] See Figure 3 , Figure 4 The magnetic ring 301 has multiple magnetic blocks 306 arranged in a ring array at equal intervals on its back. The multiple magnetic blocks 306 are magnetically attracted to the magnetic block slot 103. The magnetic connection between the multiple magnetic blocks 306 and the magnetic block slot 103 not only enhances the connection stability between the heat dissipation mechanism 3 and the front cover 1, preventing the heat dissipation mechanism 3 from falling off due to vibration during riding, but also ensures the uniform distribution of magnetic force through the ring array design, further improving the reliability of the connection.

[0031] See Figure 1 , Figure 2A rotating baffle 304 is rotatably connected to the outer surface of the magnetic ring 301. The rotating baffle 304 is an arc-shaped thin sheet, and its rotation trajectory forms a mechanical stop structure with the limiting plate 305. The design of the rotating baffle 304 allows the user to adjust the air intake according to actual needs. When it is necessary to increase the air intake, the rotating baffle 304 can be rotated to move it away from the limiting plate 305; when it is necessary to decrease the air intake, the rotating baffle 304 can be rotated to move it closer to the limiting plate 305 until the desired position is reached. This design ensures the flexibility of ventilation and prevents excessive rotation of the rotating baffle 304 through the mechanical stop structure, ensuring the safety of use.

[0032] See Figure 3 , Figure 4 A limiting piece 305 is provided on one side of the outer surface of the magnetic ring 301, and the limiting piece 305 is used to restrict the rotation of the baffle 304. The setting of the limiting piece 305 ensures that the rotation of the baffle 304 can only rotate within a certain range, preventing damage to the heat dissipation mechanism 3 or affecting the ventilation effect due to excessive rotation. At the same time, the limiting piece 305 also serves as the rotation reference of the baffle 304, allowing users to adjust the air intake more accurately, improving the convenience and precision of use.

[0033] See Figure 1 , Figure 2 The helmet 2 is mounted on the back of the front visor 1. The helmet 2 includes a helmet body 201. The two sides of the helmet body 201 are connected to the front visor 1 via rotating seats 202. The rotating seats 202 connect the front visor 1 to the helmet body 201, enabling the front visor 1 to be flipped. This design not only makes it easier for users to put on and take off the helmet, but also allows the front visor 1 to be adjusted according to the rider's needs to adapt to different lighting conditions and ventilation requirements, thus improving the helmet's practicality and comfort.

[0034] The implementation principle of this embodiment is as follows: First, by opening a mounting groove 102 and a ring array of magnetic block grooves 103 on the outer surface of the shield body 101 of the front shield 1, a modular installation base is provided for the heat dissipation mechanism 3.

[0035] Subsequently, the magnetic blocks 306 of the annular array on the back of the magnetic ring 301 of the heat dissipation mechanism 3 are precisely aligned and magnetically attracted with the magnetic block slot 103 to achieve tool-free quick assembly. At the same time, the bearing 302 fixed by the inner connecting rod of the magnetic ring 301 supports the air guide blades 303, so that the blades can adaptively adjust their angle with the airflow. When riding, the air guide grooves on the surface of the air guide blades 303 guide the airflow to form a vortex pressurization effect through the biomimetic shark gill pattern structure, which increases the airflow speed inside the helmet and suppresses the fogging of the lens, while avoiding direct airflow to the face and causing muscle spasms.

[0036] The driver can use one hand to move the arc-shaped thin rotating baffle 304 connected to the outer surface of the magnetic ring 301, and use the mechanical stop structure formed by it and the limiting plate 305 to steplessly switch between three positions: fully open, half open, and closed, in order to cope with scenarios such as rainstorm prevention, high temperature strong ventilation, or tactical silence.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A motorcycle helmet front visor structure, characterized in that: The device includes a front shield (1) and a helmet (2). The front shield (1) includes a shield body (101). The outer surface of the shield body (101) is provided with a mounting groove (102) and a plurality of magnetic block grooves (103) arranged in a ring array. A heat dissipation mechanism (3) is installed in the mounting groove (102). The heat dissipation mechanism (3) is fixed in the mounting groove (102) by magnetic attraction and includes a magnetic ring (301), a bearing (302), a guide vane (303), and a rotating baffle (304) with a limiting function.

2. The motorcycle helmet front visor structure according to claim 1, characterized in that: The heat dissipation mechanism (3) includes a magnetic ring (301), and a bearing is installed on the inner side of the magnetic ring (301) via a connecting rod, and a guide vane (303) is installed on the bearing.

3. The motorcycle helmet front visor structure according to claim 1, characterized in that: The air guide blade (303) has a flow guide groove on its blade surface, and the flow guide groove is used for further air guidance.

4. The motorcycle helmet front visor structure according to claim 1, characterized in that: The magnetic ring (301) has multiple magnetic blocks (306) arranged in a ring array at equal intervals on its back, and the multiple magnetic blocks (306) are magnetically attracted to the magnetic block slot (103).

5. The motorcycle helmet front visor structure according to claim 1, characterized in that: The outer surface of the magnetic ring (301) is rotatably connected to a rotating baffle (304), which is an arc-shaped thin sheet. Its rotation trajectory forms a mechanical stop structure with the limiting piece (305).

6. The motorcycle helmet front visor structure according to claim 1, characterized in that: A limiting piece (305) is provided on one side of the outer surface of the magnetic ring (301), and the limiting piece (305) is used to restrict the rotation of the baffle (304).

7. The motorcycle helmet front visor structure according to claim 1, characterized in that: The front visor (1) has a helmet (2) on its back. The helmet (2) includes a helmet body (201). The two sides of the helmet body (201) are connected to the front visor (1) via rotating seats (202).

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