Safety helmet

Abstract

The utility model discloses a safety helmet which comprises a helmet body, a bandage, a signal processing chip, a first fiber electrode, a second fiber electrode and a buckle. The helmet body is provided with an accommodating cavity for a user to wear on the head; the bandage is mounted in the accommodating cavity; the signal processing chip is mounted in the helmet body; the first fiber electrode, the second fiber electrode and the bandage are integrally woven and are connected to the signal processing chip; the first fiber electrode and the second fiber electrode are respectively provided with a first sensing point and a second sensing point which are exposed out of the inner side surface of the bandage, and the first sensing point and the second sensing point are respectively positioned on two sides of the accommodating cavity and correspond to the side face or the jaw of a user; the male buckle and the female buckle of the buckle are installed at the two ends of the bandage respectively. The safety helmet can accurately detect whether a user wears the safety helmet and ties the safety helmet according to a correct mode or not, and driving safety of the user is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of helmet wearing detection, in particular to a safety helmet. Background Art

[0002] At present, shared bicycles and shared electric vehicles have been popularized in large and small cities, greatly facilitating people's travel. Due to traffic regulations and to ensure driving safety, shared vehicles are equipped with corresponding helmets, and corresponding wearing detection components are arranged inside the helmets. Then, through the linkage between the wearing detection components and the vehicle control components, users are required to wear helmets. When a user does not wear a helmet as required, audible and visual reminders will be frequently issued, and even the vehicle will be directly powered off and unable to be used.

[0003] In the related prior art, the helmets of shared vehicles usually use infrared transceiver devices as wearing detection components. The principle is that when a user wears a helmet, the infrared emitter and the infrared receiver will be blocked and covered, resulting in the infrared receiver being unable to receive the signal emitted by the infrared emitter. Then, whether the infrared receiver receives the signal is used as the criterion for determining whether the user wears a helmet. However, the wearing detection components of the infrared detection type use whether the light source is covered as the judgment criterion, and it is extremely easy for users to "cheat" by various means such as stuffing clothes into the helmet or hanging the helmet on the elbow, resulting in the wearing detection losing its due meaning and increasing the risk during driving. In addition, some users do not fasten the buckle or fasten it too loosely when using the helmet. Once in danger, the helmet is extremely easy to fall off and cannot play a protective role.

[0004] In summary, the existing safety helmets cannot accurately achieve wearing detection, there is a possibility of being "cheated" by various means to avoid wearing a helmet, and they cannot detect whether the user accurately fastens the strap of the helmet, and cannot effectively judge whether the user wears the helmet correctly. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a safety helmet to solve the problems existing in the prior art, and can accurately detect whether a user wears a safety helmet and fastens the strap in the correct way to ensure the driving safety of the user.

[0006] To achieve the above object, the solution of the utility model is:

[0007] A safety helmet comprises a helmet body, a strap, a signal processing chip, a first fiber electrode, a second fiber electrode and a buckle; the helmet body has a cavity for a user to wear on the head; the strap is installed in the cavity; the signal processing chip is installed in the helmet body; the first fiber electrode, the second fiber electrode and the strap are woven into one piece, and both are connected to the signal processing chip; the first fiber electrode and the second fiber electrode are respectively provided with a first sensing point and a second sensing point exposed on the inner surface of the strap, the first sensing point and the second sensing point are respectively located on both sides of the cavity and correspond to the side face or chin of the user; the male buckle and the female buckle of the buckle are respectively installed at both ends of the strap.

[0008] The safety helmet also includes goggles, the two ends of which are pivotally connected to the two sides of the helmet body; one side of the helmet body is recessed to form a groove covered by the end of the goggles; the signal processing chip is embedded in the groove and fixed by a cover plate; the first fiber electrode and the second fiber electrode are passed through the helmet body and connected to the signal processing chip.

[0009] Preferably, the first fiber electrode, the second fiber electrode and the signal processing chip are electrically connected by means of terminal plugging.

[0010] Preferably, both sides of the helmet body are provided with rotating shafts for pivotally engaging the ends of the goggles, and the ends of the rotating shafts are sleeved with fixing caps to prevent the goggles from falling off; and the groove is arranged below the rotating shaft.

[0011] The safety helmet also includes a third fiber electrode and an SMA actuator; the third fiber electrode is woven integrally with the strap and connected to the signal processing chip; the third fiber electrode is provided with a third sensing point exposed on the inner surface of the strap, and the third sensing point is staggered with the first sensing point and the second sensing point; the SMA actuator is installed on the side wall of the cavity at a position opposite to the signal processing chip, and is electrically connected to the signal processing chip, and the output end of the SMA actuator abuts against the outer side surface of the strap and is arranged opposite to the third sensing point; the signal processing chip controls the SMA actuator to intermittently push the strap so that the third sensing point contacts the skin of the user's head.

[0012] Preferably, the SMA actuator includes a fixed seat, an SMA wire, and an elastic driving member; both ends of the driving member are a fixed end and a connecting end respectively, the fixed end of the driving member is fixed on the fixed seat, and the connecting end of the driving member is the output end of the SMA actuator; both ends of the SMA wire are a restricted end and a free end respectively, the restricted end of the SMA wire is fixed on the fixed seat, and the free end of the SMA wire is connected to the connecting end of the driving member; when the SMA wire is energized, it contracts and pulls the driving member to bend and deform, so that the connecting end of the driving member abuts against the outer side of the strap and pushes the third sensing point to move relative to the user's head.

[0013] Preferably, a power connection terminal is installed on the fixed seat; the power connection terminal is electrically connected to the signal processing chip through a wire, the restricted end of the SMA wire is connected to the power connection terminal, and the signal processing chip supplies power to the SMA wire through the power connection terminal.

[0014] Preferably, the connection between the connecting end of the driving member and the middle part of the driving member is a bent connection to form a bending point.

[0015] The safety helmet further includes a vital sign sensor, and the vital sign sensors are installed on both the first sensing point and the second sensing point. The vital sign sensors are electrically connected to the signal processing chip through the first fiber electrode or the second fiber electrode.

[0016] Both the first fiber electrode and the second fiber electrode are made of electrode fibers.

[0017] After adopting the above technical solution, the utility model has the following technical effects:

[0018] By integrating the first fiber electrode and the second fiber electrode with the strap to form an integrated part, the strap has built-in electrical connection lines and does not lose its flexibility. When the user wears the helmet in the correct way (put on the safety helmet on the head, and after fastening the strap, adjust the strap to a suitable length without looseness), the strap can fit on the user's side face and chin. In particular, the first sensing point of the first fiber electrode and the second sensing point of the second fiber electrode can simultaneously contact the user's skin; since both the first fiber electrode and the second fiber electrode are connected to the signal processing chip, at this time, a circuit is formed between the first sensing point, the second sensing point and the signal processing chip through the human body, so that the signal processing chip detects the signal of "correctly worn", and the signal processing chip is linked and controlled with the braking system of the vehicle like the wearing detection component in the prior art, so as to achieve the purpose of strictly requiring the user to wear the helmet in the correct way to use the vehicle, and ensure the safety of the user during driving. Description of the Drawings

[0019] Figure 1 Isometric view of a specific embodiment of the present utility model;

[0020] Figure 2 Exploded view of a specific embodiment of the present utility model;

[0021] Figure 3 Isometric view of the helmet body of a specific embodiment of the present utility model;

[0022] Figure 4 Isometric view of the strap of a specific embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the electrical connection of a specific embodiment of the present utility model;

[0024] Figure 6 Isometric view of the SMA actuator of a specific embodiment of the present utility model;

[0025] Figure 7 Exploded view of the SMA actuator of a specific embodiment of the present utility model;

[0026] Figure 8 Schematic diagram of the principle of the SMA actuator of a specific embodiment of the present utility model;

[0027] Explanation of the reference numerals in the attached drawings:

[0028] 1 ---- Helmet body; 11 --- Cavity; 12 --- Groove; 13 --- Rotating shaft;

[0029] 2 ---- Strap;

[0030] 3 ---- Signal processing chip;

[0031] 4 ---- First fiber electrode; 41 --- First sensing point;

[0032] 5 ---- Second fiber electrode; 51 --- Second sensing point;

[0033] 6 ---- Buckle; 61 --- Male buckle; 62 --- Female buckle;

[0034] 7 ---- Goggles;

[0035] 8 ---- Cover plate;

[0036] 9 ---- Fixed cap;

[0037] 10 --- Third fiber electrode; 101 -- Third sensing point;

[0038] 20---SMA actuator; 201--fixed seat; 202--SMA wire; 2021 - restricted end; 2022 - free end; 203--drive member; 2031 - fixed end; 2032 - connection end; 2033 - bending point; 204--power connection terminal; 30---physiological sign sensor. Detailed implementation manners

[0039] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0040] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of the present invention to be protected.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] In the description of the embodiments of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the embodiments of the present invention and simplifies the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0044] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0045] In the description of the embodiments of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection capable of mutual communication; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0047] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0048] In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0049] Reference Figures 1 to 8 As shown in the figure, the present utility model discloses a safety helmet, which includes a helmet body 1, a strap 2, a signal processing chip 3, a first fiber electrode 4, a second fiber electrode 5, and a buckle 6;

[0050] The helmet body 1 has a cavity 11 for a user's head to wear;

[0051] The strap 2 is installed in the cavity 11 and fits the user's head when the user wears the helmet body 1;

[0052] The signal processing chip 3 is installed in the helmet body 1;

[0053] The first fiber electrode 4 and the second fiber electrode 5 are integrally woven with the strap 2, and both are connected to the signal processing chip 3; the first fiber electrode 4 and the second fiber electrode 5 are respectively provided with a first sensing point 41 and a second sensing point 51 exposed on the inner surface of the strap 2, and the first sensing point 41 and the second sensing point 51 are respectively located on both sides of the cavity 11 and correspond to positions on the user's side face or chin that can contact the skin;

[0054] The male buckle 61 and the female buckle 62 of the buckle 6 are respectively installed at both ends of the strap 2; among them, the position of the female buckle 62 on the strap is adjustable.

[0055] Through the above solution, in the present utility model, by weaving the first fiber electrode 4 and the second fiber electrode 5 into an integrated part with the strap 2, the strap 2 is internally provided with an electrical connection line and does not lose its own flexibility. When the user wears the helmet in the correct way (put on the safety helmet on the head, and after fastening the strap, adjust the strap to an appropriate length, and there should be no looseness), the strap 2 can fit on the user's side face and chin. In particular, the first sensing point 41 of the first fiber electrode 4 and the second sensing point 51 of the second fiber electrode 5 can simultaneously contact the user's skin; since the first fiber electrode 4 and the second fiber electrode 5 are both connected to the signal processing chip 3, at this time, a circuit is formed between the first sensing point 41, the second sensing point 51 and the signal processing chip 3 through the human body, so that the signal processing chip 3 detects the signal of "correctly worn", and the signal processing chip 3, like the wearing detection component in the prior art, is linked and controlled with the braking system of the vehicle, thus achieving the purpose of strictly requiring the user to wear the helmet in the correct way to use the vehicle, and ensuring the safety of the user during driving.

[0056] The following shows specific embodiments of the present utility model.

[0057] The present utility model further includes a goggle 7, and both ends of the goggle 7 are pivotally fitted on both sides of the helmet body 1; a groove 12 covered by the end of the goggle 7 is recessed on one side of the helmet body 1; the signal processing chip 3 is embedded in the groove 12 and fixed by a cover plate 8, and the cover plate 8 is locked in the groove 12 by screws; the first fiber electrode 4 and the second fiber electrode 5 pass through the helmet body 1 and are connected to the signal processing chip 3. Thus, the installation position of the signal processing chip 3 is covered by the end of the goggle 7, and the signal processing chip 3 can be quickly disassembled and assembled after removing the goggle 7, which is convenient for maintenance and replacement.

[0058] Furthermore, the first fiber electrode 4 and the second fiber electrode 5 are electrically connected to the signal processing chip 3 by means of terminal insertion, which is convenient for disassembling and replacing the signal processing chip 3.

[0059] At the same time, both sides of the helmet body 1 are provided with a rotating shaft 13 for pivotally engaging the ends of the goggles 7, and a fixing cap 9 is sleeved on the end of the rotating shaft 13 to prevent the goggles 7 from falling off. The goggles 7 can be removed after removing the fixing cap 9; the above-mentioned groove 12 is arranged at a peripheral position of the rotating shaft 13, and in this embodiment is located below the rotating shaft 13.

[0060] See also Figure 3 , Figure 5 The utility model further includes a third fiber electrode 10 and an SMA actuator 20; the third fiber electrode 10 is also woven integrally with the strap 2 and connected to the signal processing chip 3; the third fiber electrode 10 is provided with a third sensing point 101 exposed on the inner surface of the strap 2, and the third sensing point 101 is staggered with the first sensing point 41 and the second sensing point 51, such as being provided at a position closer to the ear; the SMA actuator 20 is installed on the side wall of the cavity 11 at a position opposite to the signal processing chip 3, and is electrically connected to the signal processing chip 3 through wires, the installation position of the SMA actuator 20 can avoid winding and facilitate electrical connection, and the output end of the SMA actuator 20 abuts against the outer side of the strap 2 and is provided opposite to the third sensing point 101; the signal processing chip 3 controls the SMA actuator 20 to intermittently push the strap 2 so that the third sensing point 101 contacts the skin of the user's head. By pushing the third sensing point 101 with the SMA actuator 20 to intermittently contact the skin, "spot checks" other than detecting the correctness of wearing the strap 2 can be implemented to ensure that the user is wearing the helmet correctly. This is a secondary detection solution that can increase the difficulty for the user to circumvent detection by special means, thereby further improving the safety performance of the safety helmet.

[0061] Further, see Figures 6 to 8 The SMA actuator 20 comprises a fixing seat 201, an SMA wire 202 and an elastic driving member 203; the two ends of the driving member 203 are respectively a fixing end 2031 and a connecting end 2032, the fixing end 2031 of the driving member 203 is fixed on the fixing seat 201, and the connecting end 2032 of the driving member 203 is the output end of the SMA actuator 20; the two ends of the SMA wire 202 are respectively a limiting end 2021 and a free end 2022, the limiting end 2021 of the SMA wire 202 is fixed on the fixing seat 201, and the free end 2022 of the SMA wire 202 is connected to the connecting end 2032 of the driving member 203; see Figure 8 When the SMA wire 202 is energized, it contracts and pulls the driving member 203 to bend and deform, so that the connecting end 2032 of the driving member 203 abuts against the outer side of the strap 2 and pushes the third sensing point 101 to move relative to the user's head.

[0062] Secondly, the fixing seat 201 is provided with a power terminal 204; the power terminal 204 is electrically connected to the signal processing chip 3 through an electric wire, the limiting end 2021 of the SMA wire 202 is connected to the power terminal 204 for electrical conduction, and the signal processing chip 3 can supply power to the SMA wire 202 through the power terminal 204 to make it contract. In this embodiment, the power terminal 204 is combined with the fixing seat 201 through a plastic coating process, and the power terminal 204 and the limiting end 2021 of the SMA wire 202 can be connected through a welding process.

[0063] Furthermore, the connection end 2032 of the driving member 203 is bent and connected to the middle part of the driving member 203 to form a bend 2033, so that when the SMA wire 202 contracts, the driving member 203 can be easily pulled to bend and deform. The fixed end 2031 of the driving member 203 is combined with the fixed seat 201 through a plastic coating process.

[0064] The utility model also includes a vital sign sensor 30. The first sensing point 41 and the second sensing point 51 are both equipped with the vital sign sensor 30. The vital sign sensor 30 is electrically connected to the signal processing chip 3 through the first fiber electrode 4 or the second fiber electrode 5. The detected vital sign signals (such as pulse, temperature, etc.) can be transmitted to the signal processing chip to realize liveness detection. It can more accurately determine whether the user wears the helmet in the correct way, and can monitor the user's vital signs in real time. When there is an abnormality, timely reminders are given and corresponding processing is performed (such as disconnecting the power supply of the vehicle when an abnormal user state is detected).

[0065] The first fiber electrode 4, the second fiber electrode 5, the third fiber electrode 10, etc. in the utility model are all made of highly elastic and low-resistance electrode fibers. While the electrode fibers have the characteristics of being close to the skin without feeling, being arbitrarily bendable, and being washable, their excellent conductivity can realize circuit connection, and can assist corresponding detection to complete the perception and conduction of electrocardiogram, electroencephalogram, pressure, tension and other signals, and can be adapted to the strap 2.

[0066] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A safety helmet, characterized in that include: Helmet body, strap, signal processing chip, first fiber electrode, second fiber electrode and buckle; The helmet body has a cavity for the user to wear on the head; The binding strap is installed in the cavity; The signal processing chip is installed in the helmet body; The first fiber electrode and the second fiber electrode are woven integrally with the strap, and both are connected to the signal processing chip; the first fiber electrode and the second fiber electrode are respectively provided with a first sensing point and a second sensing point exposed on the inner surface of the strap, and the first sensing point and the second sensing point are respectively located on both sides of the cavity and correspond to the side face or chin of the user; The male buckle and the female buckle of the buckle are respectively installed at two ends of the binding belt.

2. The safety helmet according to claim 1, characterized in that: It also includes goggles, both ends of which are pivotally connected to the two sides of the helmet body; one side of the helmet body is recessed to form a groove covered by the end of the goggles; the signal processing chip is embedded in the groove and fixed by a cover plate; the first fiber electrode and the second fiber electrode are passed through the helmet body and connected to the signal processing chip.

3. The safety helmet according to claim 2, characterized in that: The first fiber electrode, the second fiber electrode and the signal processing chip are electrically connected by means of terminal plugging.

4. The safety helmet according to claim 2, characterized in that: Both sides of the helmet body are provided with rotating shafts for pivotally cooperating with the ends of the goggles, and the ends of the rotating shafts are sleeved with fixing caps to prevent the goggles from falling off; the groove is arranged below the rotating shafts.

5. The safety helmet according to claim 1, characterized in that: It also includes a third fiber electrode and an SMA actuator; the third fiber electrode is woven integrally with the strap and connected to the signal processing chip; the third fiber electrode is provided with a third sensing point exposed on the inner surface of the strap, and the third sensing point is staggered with the first sensing point and the second sensing point; the SMA actuator is installed on the side wall of the cavity at a position opposite to the signal processing chip, and is electrically connected to the signal processing chip, and the output end of the SMA actuator abuts against the outer side surface of the strap and is arranged opposite to the third sensing point; the signal processing chip controls the SMA actuator to intermittently push the strap so that the third sensing point contacts the skin of the user's head.

6. The safety helmet according to claim 5, characterized in that: The SMA actuator includes a fixed seat, an SMA wire, and an elastic driving member; both ends of the driving member are a fixed end and a connecting end respectively, the fixed end of the driving member is fixed on the fixed seat, and the connecting end of the driving member is the output end of the SMA actuator; both ends of the SMA wire are a limiting end and a free end respectively, the limiting end of the SMA wire is fixed on the fixed seat, and the free end of the SMA wire is connected to the connecting end of the driving member; when the SMA wire is electrified, it contracts and pulls the driving member to bend and deform, so that the connecting end of the driving member abuts against the outer side of the strap and pushes the third sensing point to move relative to the user's head.

7. The safety helmet according to claim 6, wherein: A power connection terminal is installed on the fixed seat; the power connection terminal is electrically connected to the signal processing chip through a wire, the limiting end of the SMA wire is connected to the power connection terminal, and the signal processing chip supplies power to the SMA wire through the power connection terminal.

8. The safety helmet according to claim 7, wherein: There is a bent connection between the connecting end of the driving member and the middle part of the driving member to form a bent portion.

9. The safety helmet according to claim 1, wherein: It further includes a vital sign sensor, the vital sign sensor is installed on both the first sensing point and the second sensing point, and the vital sign sensor is electrically connected to the signal processing chip through the first fiber electrode or the second fiber electrode.

10. The safety helmet according to any one of claims 1 to 9, wherein: Both the first fiber electrode and the second fiber electrode are made of electrode fibers.

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