The present disclosure relates to the field of helmets, and in particular to a helmet having a flow guide wing and a use method.
Existing helmets, including a bicycle helmet, a motorcycle helmet, and a flight helmet, are intended to protect a human head. With advancements in science and technology, many devices such as a camera, virtual reality (VR) glasses, a navigation unit and a communication unit can be provided on the helmet to achieve more functions. However, when devices are added, the helmet becomes increasingly heavy and causes pressure on the head and neck, or even fatigue and injury to the human body in long-term use. In order to reduce weight of the helmet, a carbon fiber composite is used. With an expensive cost and a minimum usage of this material, the helmet cannot be any lighter to ensure safety. Moreover, in use of the helmet, such as in riding of a motorcycle and in use of a power delta wing for flying, any fluid around the helmet moves violently. The shape of the helmet dominates the using function and safety of the helmet, and the helmet in the prior art is far from satisfactory. Therefore, it is desired to design a helmet that is capable of relieving the pressure on the head and the neck, applicable to more application fields, and able to realize more functions.
An objective of the present disclosure is to provide a helmet having a flow guide wing and a use method, to relieve a pressure load of an existing helmet on a head, make use of a fluid around the helmet for more functions, and guide a direction with the helmet in use.
To achieve the above-mentioned objective, the present disclosure provides the following technical solutions: A helmet includes a helmet body and a flow guide wing, where the flow guide wing is provided outside the helmet body; and in response to a shape and/or a position of the flow guide wing, when the helmet is used, the flow guide wing generates a vertical upward lift along a chord line. When the helmet is worn on a human head, names of portions on the helmet are the same as names of positions on the human head. For example, a position of the helmet close to a top of the head is referred to as a top of the helmet, a position of the helmet close to a face is referred to a front of the helmet, a position of the helmet close to a neck is referred to as a bottom of the helmet, and a position of the helmet close to a hindbrain is referred to a back of the helmet.
The flow guide wing is shaped as a symmetrical wing or a lifting wing.
The flow guide wing is collapsible and/or detachable.
The flow guide wing is horizontally or vertically provided.
The helmet includes the helmet body and a guiding cover connected to the helmet body, and the flow guide wing is provided on the helmet body and/or the guiding cover.
The helmet further includes a fixed tray 10. The fixed tray 10 is fixed on the helmet; at least one clamping groove 11 is formed in the fixed tray 10; a plurality of clamping grooves 11 have an open end and are circumferentially distributed along an axis of the fixed tray 10; an opening direction of the clamping groove 11 is toward an advancing direction of the helmet in use; and a left end of the flow guide wing 2 can be embedded into the clamping groove 11.
According to the helmet, a portion of the flow guide wing 2 embedded into the clamping groove 11 and the clamping groove 11 are in interference fit and are fixed to each other through at least one of a mortise-and-tenon structure and a buckle structure.
The helmet further includes a storage unit, where the storage unit includes a fixed member 4; the fixed member 4 is fixed on the helmet; a shaft hole is formed in the fixed member 4; a left end of the flow guide wing 2 is provided with a connecting plate 9; a shaft hole is formed in the connecting plate 9; the left end of the flow guide wing 2 is connected to a limit member 8 and a fixed shaft 5; a torsional spring 6 is sleeved on the fixed shaft 5; the torsional spring 6 includes one end connected to the helmet, and the other end connected to the flow guide wing 2; and the flow guide wing 2 is connected to the helmet rotatably and collapsibly by the fixed shaft 5 through the shaft hole of the fixed member 4 and the shaft hole of the connecting plate 9.
According to the helmet, in response to an initial state of the storage unit, the flow guide wing 2 is provided along a left-right direction, the torsional spring 6 is applied to the flow guide wing 2, a left end of the limit member 8 of the flow guide wing 2 comes in contact with a right end of the fixed member 4, the flow guide wing 2 is extended, the flow guide wing 2 does not rotate to a top left in use, and under a bottom-right external force, the flow guide wing 2 overcomes a force of the torsional spring 6 and can rotate toward a bottom right to get close to a surface of the helmet, thereby reducing an occupied space of the helmet for storage.
A use method of a helmet includes: wearing the helmet when riding a bicycle or a motorcycle, where in response to straight driving, a flow guide wing on the helmet cooperates with an oncoming airflow to generate a lift, thereby relieving a pressure of the helmet on a human body; and in response to turning driving, the human body actively drives the helmet to incline toward an inner side of a turning direction, the flow guide wing cooperates with an oncoming airflow to generate an inclined inward lift, and the lift can be decomposed into an upward force for reducing the pressure of the helmet on the human body, and a tensile force toward an inner side of a bend for reducing a centrifugal force, thereby providing the safer and quicker turning driving; or wearing the helmet in flight, with a face of the human body downward, a top of the helmet forward, and a mask of the helmet downward, where the flow guide wing is provided vertically relative to the helmet; and specifically, in response to the forward top of the helmet and the downward mask of the helmet, the flow guide wing is horizontal, and the flow guide wing on the helmet cooperates with an oncoming airflow to generate a lift, thereby relieving a pressure of the helmet on a neck of the human body, and providing an assistance for ascending or descending in the flight; and in response to turning flight, the human body actively drives the helmet to incline toward an inner side of a turning direction, the flow guide wing cooperates with an airflow from the top of the helmet to generate an inclined inward lift, and the lift can be decomposed into an upward force for reducing the pressure of the helmet on the human body, and a tensile force toward an inner side of a bend for reducing a centrifugal force, thereby providing the safer and quicker turning flight.
Preferably, the flow guide wing is provided at each of two sides of the helmet. The flow guide wing generates an upward lift for the helmet in use of the helmet. The lift includes at least a force for overcoming a gravity. When the helmet is used, a position or a direction of the helmet is changed, for example, the helmet is inclined. Consequently, a position or a direction of the flow guide wing is changed, and the generated lift is changed. Nevertheless, there is a force reverse to the gravity. That is, a lift toward the top of the helmet or the back of the helmet is generated.
The technical solutions of the present disclosure are applicable to air and water. For example, in diving work or entertainment, since the water has same fluid characteristics as the air, the helmet having the flow guide wing provided by the present disclosure can achieve the same effect.
According to the present disclosure, the flow guide wing is provided horizontally or vertically. This includes, but is not limited to, a completely horizontal or vertical direction. While functions of the apparatus in the present disclosure are ensured, a certain included angle between the flow guide wing and the horizontal or vertical direction is allowed.
The present disclosure has the following beneficial effects: According to the helmet and the use method provided by the present disclosure, with principles of fluid dynamics, the flow guide wing of the helmet generates a lift in use. This reduces a gravitational pressure of the helmet on the head and the neck, and relieves a fatigue of the human body. On the other hand, the human body actively drives the helmet and the flow guide wing to incline, thereby generating an inclined force to obtain a lateral tensile force. This facilitates control and safe use of the helmet. With a reduced weight, the present disclosure has a smaller resistance in riding and other movements, thereby saving manpower and energy.
In the figures: 1—helmet body, 2—flow guide wing, 3—guiding cover, 4—fixed member, 5—fixed shaft, 6—torsional spring, 7—step, 8—limit plate, 9—connecting plate, 10—fixed tray, 11—clamping groove, 21—rotating shaft hole, 22—second clamping groove, 23—nut, 24—spring gasket, 25—threaded rod, 26—second fixed seat, and 27—second clamping groove pair.
The present disclosure will be further described below with reference to specific embodiments.
In Embodiments 1-6, it is to be understood that there may be at least one flow guide wing 2 on a left and a right of the helmet body 1, and may also be a plurality of flow guide wings 2. For example, there are two layers of flow guide wings that are parallel to each other. In case of a fluid in forward movement of the helmet body 1, the flow guide wing 2 generates a lift, and transmits the lift to the helmet body 1.
It is to be understood that an open position of the clamping groove 11 may be inclined upward with a certain angle. After the flow guide wing 2 is fixed in the clamping groove 11, the flow guide wing 2 can form an angle of attack with a horizontal plane. Particularly, in response to a symmetrical shape of the flow guide wing, through the angle of attack with the horizontal plane, the flow guide wing 2 also has an angle of attack relative to an oncoming fluid through movement of the head in use. This can improve the lift of the flow guide wing 2. In the figure, the flow guide wing 2 not used can be detached for storage.
Number | Date | Country | Kind |
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202110611741.3 | Jun 2021 | CN | national |
This application is the national phase entry of International Application No. PCT/CN2022/096092, filed on May 30, 2022, which is based upon and claims priority to Chinese Patent Application No. 202110611741.3, filed on Jun. 2, 2021, the entire contents of which are incorporated herein by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/CN2022/096092 | 5/30/2022 | WO |