Portable emergency safety helmet

Abstract

This utility model discloses a portable emergency safety helmet, belonging to the technical field of protective equipment. Existing helmets suffer from problems such as fixed cushioning and protective structures, inconvenient head circumference adjustment, and difficulty in balancing protective effectiveness and wearability. This helmet includes a helmet body, a cushioning and protective component, and a head circumference adjustment component. The cushioning and protective component comprises a basic cushioning layer and an emergency protective layer. The basic cushioning layer is connected to the inner wall of the helmet body and is a gradient-density EPP foam layer. The emergency protective layer is an elastic cloth bag with built-in expandable polystyrene particles, connected to the basic cushioning layer by a snap fastener. The head circumference adjustment component includes an annular airbag and a manual inflation pump. The annular airbag fits against the lower part of the inner wall of the helmet body, and the manual inflation pump is connected to the annular airbag via an air duct and located on the outside of the helmet body. This helmet is mainly used for effective head protection in emergency scenarios, adapting to users with different head circumferences, improving wearing comfort and protective reliability.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment technology, and in particular to a portable emergency safety helmet. Background Technology

[0002] In the field of personal protective equipment, helmets, as crucial tools for head protection, directly impact the user's safety and comfort. Currently, common helmets have limitations in cushioning protection. Most helmets employ a fixed design for their cushioning structure, typically consisting of a single layer of foam directly adhered to the inner wall of the helmet. While this structure is relatively simple, it struggles to provide adaptive cushioning for different impact scenarios, and its cushioning performance tends to degrade over time. Furthermore, replacing cushioning components is relatively cumbersome.

[0003] Meanwhile, head circumference adjustment also presents inconveniences. Most existing helmets use mechanical buckles or Velcro for head circumference adjustment, requiring manual pulling of the adjustment strap or manipulation of the buckle. This not only limits adjustment precision but also makes it difficult to quickly adapt to users with different head circumferences. While some helmets attempt to use airbag adjustment, the airbag inflation device design is often flawed. Either it's too bulky, affecting the helmet's overall portability, or its improper placement causes a foreign body sensation when worn. Furthermore, the pressure of the inflated airbag is difficult to control stably, easily resulting in a fit that is too tight or too loose, impacting the user experience. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] One objective of this invention is to address the problems of existing helmets having fixed and singular cushioning and protective structures that are difficult to adapt to different impact scenarios, cumbersome replacement of cushioning components, inconvenient operation and poor adaptability of head circumference adjustment mechanisms, and difficulty in balancing protective effect and wearing fit.

[0006] One objective of this invention is to address the problem that existing emergency helmets only provide head protection, have limited functionality, lack environmental information monitoring and communication support, and cannot meet the user's needs for environmental awareness and external communication in emergency scenarios.

[0007] One objective of this invention is to address the problem that existing helmets with functional components exist independently, lack coordination, have weak environmental monitoring targeting, insufficient communication and positioning stability, and are difficult to reliably function in emergency scenarios.

[0008] One objective of this invention is to address the problem that existing emergency helmets rely on manual operation for communication, which may prevent users from operating them conveniently in emergency situations due to busy or injured hands, thus affecting communication efficiency and even delaying rescue opportunities.

[0009] One objective of this invention is to address the problems of existing emergency helmets lacking a dedicated storage structure, taking up a lot of space when not in use, being inconvenient to carry, and being easily damaged by collisions during transport.

[0010] One objective of this invention is to solve the problems of existing helmet storage structures being simple in design, with handles that are prone to wobbling or protruding, and buckles that are not effective at tightening and are difficult to secure, resulting in them still occupying a lot of space when stored and making it inconvenient to use the handles when carrying them.

[0011] One objective of this invention is to address the problem that existing helmets are difficult to balance in terms of protective performance and lightweight design, and that their performance is prone to decline and lifespan is affected by wear and corrosion after long-term use.

[0012] One objective of this invention is to address the problem that existing head circumference adjustment components lack pressure feedback, making it difficult for users to know the degree of tightness, easily resulting in discomfort from being too tight or instability from being too loose, and poor adjustment effects based on subjective feelings.

[0013] One objective of this invention is to solve the problems that the connection between the basic buffer layer and the inner wall of the helmet body is prone to poor adhesion or circumferential displacement, affecting the buffering and protection effect, and that improper connection structure design leads to inconvenient assembly.

[0014] One objective of this invention is to solve the problems of slippage when gripping the folding handle of existing storage components, and wear of the hanging hole at the end of the handle when suspended, which affects the user experience and the service life of the handle.

[0015] To achieve these objectives and other advantages according to this utility model, a portable emergency safety helmet is provided, comprising a helmet body, a cushioning and protective component disposed inside the helmet body, and a head circumference adjustment component disposed inside the helmet body; the cushioning and protective component includes a basic cushioning layer and an emergency protective layer, the basic cushioning layer being connected to the inner wall of the helmet body and being a gradient density EPP foam layer, the emergency protective layer being an elastic cloth bag with built-in cushioning particles, the elastic cloth bag being connected to the basic cushioning layer by a snap fastener, and the cushioning particles inside the elastic cloth bag being expandable polystyrene particles; the head circumference adjustment component includes an annular airbag and a manual air pump, the annular airbag being fitted to the lower part of the inner wall of the helmet body, the manual air pump being connected to the annular airbag through an air duct, and the manual air pump being disposed on the outer side of the helmet body, the air duct penetrating the wall of the helmet body.

[0016] Preferably, the portable emergency safety helmet also includes an emergency protection module integrated into the helmet body, wherein the emergency protection module and the helmet body are integrated into one unit.

[0017] Preferably, in the portable emergency safety helmet, the emergency protection module includes a micro energy storage unit, an environmental monitoring component, and an emergency communication component. The micro energy storage unit is a flexible solar thin-film battery, which is attached to the outer surface of the helmet body. The environmental monitoring component includes a gas sensor and a temperature and humidity sensor integrated on the front side of the helmet body. The gas sensor is used to detect the concentration of carbon monoxide and hydrogen sulfide, and the temperature and humidity sensor is used to collect ambient temperature and humidity data in real time. The emergency communication component includes a Bluetooth module and a positioning chip. The positioning chip is a Beidou positioning chip or a GPS dual-mode positioning chip.

[0018] Preferably, in the portable emergency safety helmet, the emergency protection module further includes a voice interaction unit disposed on the side of the helmet body, and the voice interaction unit is electrically connected to the emergency communication component.

[0019] Preferably, the portable emergency safety helmet further includes a storage component, which is disposed on the outside of the helmet body.

[0020] Preferably, in the portable emergency safety helmet, the storage component includes a folding handle located on the top of the helmet body and a storage strap located on the edge of the helmet body. The folding handle is connected to the helmet body via a rotating shaft and can rotate around the rotating shaft to fit against the outer surface of the helmet body. The storage strap is an elastic webbing with matching buckles at both ends. When the helmet is not in use, it can be tightened into a compact state using the storage strap.

[0021] Preferably, in the portable emergency safety helmet, the helmet body is made of basalt fiber composite material, the thickness of the helmet body is 3-5mm, and the outer surface of the helmet body is coated with a wear-resistant and corrosion-resistant coating.

[0022] Preferably, in the portable emergency safety helmet, the annular airbag is equipped with a pressure sensor, which is electrically connected to a display screen located on the outside of the helmet body. The display screen is used to display the real-time pressure value inside the annular airbag.

[0023] Preferably, in the portable emergency safety helmet, the basic buffer layer is connected to the inner wall of the helmet body through an adhesive structure. The adhesive structure includes a hot melt adhesive layer coated on the outer surface of the basic buffer layer and a fiber cloth layer disposed on the inner wall of the helmet body and adapted to the hot melt adhesive layer. The hot melt adhesive layer and the fiber cloth layer are fixed by hot pressing. The edge of the basic buffer layer is provided with at least two positioning protrusions, and the inner wall of the helmet body is provided with corresponding positioning grooves. The positioning protrusions are embedded in the positioning grooves to limit the circumferential displacement of the basic buffer layer.

[0024] Preferably, in the portable emergency safety helmet, the folding handle of the storage component has anti-slip texture, and the end of the handle has a hanging hole, in which a rubber anti-slip sleeve is fitted.

[0025] This utility model has at least the following beneficial effects:

[0026] This utility model provides a buffer protection component consisting of a basic buffer layer and an emergency protection layer, as well as a head circumference adjustment component that works with a ring-shaped airbag and a manual inflation pump. This makes the buffer protection structure more flexible, adaptable to different impact scenarios, and the head circumference adjustment operation more convenient. It effectively balances the protective effect and the wearability. The connection method of the buffer components is also easy to maintain.

[0027] This invention, by integrating an emergency protection module into the helmet body, changes the single function of existing emergency helmets that can only provide protection, giving them the ability to monitor environmental information and support communication. This allows users to perceive environmental conditions in a timely manner and maintain contact with the outside world in emergency scenarios, thus better meeting the actual needs of emergency situations.

[0028] This invention integrates a micro energy storage unit, an environmental monitoring component, and an emergency communication component, enabling the components to work collaboratively. This improves the targeting of environmental monitoring and the stability of communication and positioning, avoids the drawbacks of components existing independently, and ensures that they can reliably function in emergency scenarios.

[0029] This invention eliminates the reliance on manual operation for emergency helmet communication by setting up a voice interaction unit and electrically connecting it to the emergency communication component. Even if the user's hands are busy or injured, they can easily make calls and send messages via voice, ensuring communication efficiency and reducing delays in rescue opportunities.

[0030] This invention solves the problem of existing emergency helmets lacking a dedicated storage structure by setting a storage component on the outside of the helmet body. It reduces the space occupied when not in use, makes it more convenient to carry, and reduces the risk of damage caused by collisions during transportation, thus improving the practicality of the helmet.

[0031] This invention optimizes the design of the folding handle and storage strap of the storage component, making the handle less prone to wobbling and able to fit snugly against the helmet. The strap tightens more stably, avoiding taking up too much space during storage and making the handle more convenient to use when carrying, thus enhancing the practicality of the storage component.

[0032] This invention achieves a balance between protective performance and lightweight by using basalt fiber composite material to make the helmet body and controlling its thickness, while coating the outer surface with a wear-resistant and corrosion-resistant coating. This reduces the impact of wear and corrosion on the helmet during long-term use and helps extend the helmet's service life.

[0033] This invention, by incorporating a pressure sensor in the annular airbag and a display screen, allows users to intuitively understand the tightness of the head circumference adjustment, avoiding the drawbacks of adjusting based on subjective feelings. It effectively prevents discomfort from being too tight or instability from being too loose, thus improving wearing comfort and stability.

[0034] This invention achieves a stable connection between the basic buffer layer and the inner wall of the helmet body by using an adhesive structure combined with positioning protrusions and positioning grooves. This avoids problems such as poor fit or circumferential displacement, ensuring the buffering and protective effect, and also making the assembly process more convenient and efficient.

[0035] This invention reduces slippage when gripping by setting anti-slip textures on the folding handle and fitting a rubber anti-slip sleeve inside the hanging hole, thereby reducing wear when hanging and improving the user experience. It also helps to extend the service life of the handle and enhances the durability of the storage components.

[0036] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0037] Figure 1 This is a structural schematic diagram of the portable emergency safety helmet of this utility model.

[0038] Figure 2 This is a schematic diagram of the appearance of the portable emergency safety helmet of this utility model.

[0039] Figure 3 This is a schematic diagram of the bonding structure in this utility model. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0041] like Figure 1 and Figure 3As shown, this utility model provides a portable emergency safety helmet, including a helmet body 1, a cushioning and protective component disposed inside the helmet body, and a head circumference adjustment component disposed inside the helmet body; the cushioning and protective component includes a basic cushioning layer 2 and an emergency protective layer 3. The basic cushioning layer is connected to the inner wall of the helmet body and is a gradient density EPP foam layer. The emergency protective layer is an elastic cloth bag with built-in cushioning particles. The elastic cloth bag is connected to the basic cushioning layer by a snap fastener, and the cushioning particles inside the elastic cloth bag are expandable polystyrene particles; the head circumference adjustment component includes an annular airbag 4 and a manual air pump 5. The annular airbag is fitted to the lower part of the inner wall of the helmet body, and the manual air pump is connected to the annular airbag through an air duct. The manual air pump is disposed on the outside of the helmet body, and the air duct penetrates the wall of the helmet body.

[0042] The helmet disclosed in this embodiment includes a helmet body, a cushioning and protective component, and a head circumference adjustment component.

[0043] The helmet body has an arc-shaped shell structure, with its inner wall used to install the cushioning and protective components and the head circumference adjustment components. The cushioning and protective components include a basic cushioning layer and an emergency protection layer. The basic cushioning layer uses a gradient density EPP foam layer, with its density gradually decreasing from the side closer to the inner wall of the helmet body to the side closer to the head. It is connected to the inner wall of the helmet body via an adhesive structure. The outer surface of the basic cushioning layer is coated with a hot melt adhesive layer, and a fiber cloth layer is fixed at the corresponding position on the inner wall of the helmet body. During assembly, the hot melt adhesive layer and the fiber cloth layer are bonded together by hot pressing. At the same time, the positioning protrusions on the edge of the basic cushioning layer are embedded in the positioning grooves on the inner wall of the helmet body to prevent the basic cushioning layer from sliding relative to the circumference of the helmet body. The emergency protection layer is an elastic bag filled with expandable polystyrene granules. The edge of the elastic bag is sewn with a male buckle, and the side of the basic cushioning layer closer to the head is sewn with a female buckle. The connection between the elastic bag and the basic cushioning layer is achieved by the engagement of the male and female buckles.

[0044] The head circumference adjustment assembly includes a ring-shaped airbag and a manual inflator. The ring-shaped airbag is made of elastic rubber and its shape conforms to the circumferential contour of the lower part of the helmet's inner wall, fitting snugly and securely in place. The manual inflator is a miniature, hand-operated pump located on the outer wall of the helmet. It connects to the ring-shaped airbag via an air tube that passes through the helmet's wall, and the connection is sealed with sealant. In use, squeezing the manual inflator inflates the ring-shaped airbag, causing it to expand and conform to the head, thus adjusting the head circumference.

[0045] Existing emergency protective helmets typically consist of a helmet body and a single cushioning layer fixed inside the helmet body, with head circumference adjustment often using a mechanical buckle structure. This application differs from existing technologies in several ways: First, the cushioning protection component employs a combined structure of a basic cushioning layer and an emergency protection layer. The basic cushioning layer is a gradient-density EPP foam layer, and the emergency protection layer is an elastic fabric bag containing expandable polystyrene particles, connected by a snap fastener. Compared to the single cushioning layer of existing technologies, this design enhances protective adaptability through the synergistic effect of different cushioning structures. Second, the head circumference adjustment component uses a combination of a ring-shaped airbag and a manual inflation pump. Head circumference adjustment is achieved through airbag inflation, resulting in a smoother adjustment process and a better fit for different head shapes compared to the mechanical buckle structure of existing technologies. Third, the basic cushioning layer is bonded to the inner wall of the helmet body via an adhesive structure. Combined with the cooperation of positioning protrusions and positioning grooves, this provides superior connection stability compared to the glue-fixing method commonly used in existing technologies, and facilitates maintenance of the basic cushioning layer when needed. Therefore, the helmet of this application surpasses common emergency protective helmets in terms of protective performance, wearing comfort, and structural maintainability.

[0046] In a preferred embodiment, the portable emergency safety helmet further includes an emergency protection module integrated into the helmet body, wherein the emergency protection module and the helmet body are integrated into one unit.

[0047] The emergency protection module is integrated with the helmet body, and the installation of its components must be compatible with the helmet's structure. Existing emergency helmets are limited in function, providing only head protection and failing to offer environmental monitoring and communication support in emergency situations, hindering users' ability to promptly understand their surroundings and maintain contact with the outside world. In contrast, the helmet in this embodiment, by incorporating an emergency protection module, not only provides head protection but also utilizes environmental monitoring components to acquire real-time information on ambient gas concentration, temperature, and humidity, allowing users to promptly ascertain the safety of their surroundings. Furthermore, the emergency communication component enables communication and location tracking with the outside world, enhancing the helmet's practicality and safety in emergency scenarios and better meeting the needs of emergency rescue and other similar situations.

[0048] In a preferred embodiment, the portable emergency safety helmet includes an emergency protection module comprising a micro energy storage unit, an environmental monitoring component, and an emergency communication component. The micro energy storage unit is a flexible solar thin-film battery 14, which is attached to the outer surface of the helmet body. The environmental monitoring component 13 includes a gas sensor and a temperature and humidity sensor integrated on the front side of the helmet body. The gas sensor is used to detect the concentrations of carbon monoxide and hydrogen sulfide, and the temperature and humidity sensor is used to collect ambient temperature and humidity data in real time. The emergency communication component includes a Bluetooth module and a positioning chip, wherein the positioning chip is a Beidou positioning chip or a GPS dual-mode positioning chip.

[0049] The micro-energy storage unit uses flexible thin-film solar cells. Its size is determined by the available area on the helmet's outer surface. After cutting, it is smoothly attached to the top and sides of the helmet using a strong and weather-resistant adhesive, ensuring maximum light reception without compromising overall helmet comfort. The environmental monitoring components include gas and temperature / humidity sensors. The gas sensor is designed to detect carbon monoxide and hydrogen sulfide, while the temperature / humidity sensor is a highly responsive model. Both are integrated into a small mounting box made of lightweight and durable plastic. The box is screwed to the front of the helmet above the user's eyes, with the outer surface flush with the helmet's surface. The sensor probes extend from small holes in the mounting box, ensuring direct contact with ambient air. The Bluetooth module in the emergency communication component is a model with stable transmission, and the positioning chip adopts the Beidou or GPS dual-mode positioning type. The two are integrated and packaged in a waterproof plastic shell. The size of the plastic shell is adapted to the built-in mounting slot at the rear of the helmet body. After being inserted into the mounting slot, it is fixed by the buckles on the edge of the plastic shell cooperating with the slots in the mounting slot to prevent loosening or displacement during helmet use.

[0050] Existing emergency helmets, when equipped with functional components, often operate independently, lacking coordination. Furthermore, their environmental monitoring is not targeted enough, and their communication and positioning stability is insufficient, making them unreliable in emergency scenarios. In contrast, the emergency support module in this embodiment rationally integrates a micro-energy storage unit, an environmental monitoring component, and an emergency communication component. The micro-energy storage unit provides energy support for other components, the environmental monitoring component accurately detects common hazardous gases, temperature, and humidity in emergency scenarios, and the emergency communication component's dual-mode positioning and stable Bluetooth transmission ensure information transmission and location determination. The collaborative work of these components enhances the helmet's comprehensive functionality and reliability in emergency situations.

[0051] In a preferred embodiment, the portable emergency safety helmet further includes a voice interaction unit 6 disposed on the side of the helmet body, the voice interaction unit being electrically connected to the emergency communication component.

[0052] The voice interaction unit uses a compact microphone and speaker integrated module, which is installed on the side of the helmet near the user's ear. During installation, a mounting cavity matching the module's size is pre-drilled in the side of the helmet. After the module is inserted into the cavity, it is secured to the cavity's inner wall using plastic clips, ensuring the module does not wobble during helmet use. The voice interaction unit connects to the emergency communication component via a wire. One end of the wire is soldered to the terminal block of the voice interaction unit, and the other end passes through a pre-drilled hole inside the helmet to connect to the corresponding interface of the Bluetooth module in the emergency communication component. A flexible protective sleeve is fitted over the wire to prevent wear and tear.

[0053] Existing emergency helmets largely rely on manual operation for communication. In emergency situations, users may be unable to operate them conveniently due to busy or injured hands, affecting communication efficiency and even delaying rescue efforts. In contrast, the helmet in this embodiment incorporates a voice interaction unit, eliminating the need for manual operation. Users can dial and send messages simply through voice commands, better meeting the needs of emergency scenarios, improving the convenience and timeliness of communication, and ensuring efficient communication between the user and the outside world.

[0054] In a preferred embodiment, the portable emergency safety helmet further includes a storage component disposed on the outside of the helmet body.

[0055] The storage components are located on the outside of the helmet body, and the overall layout does not affect the normal wearing of the helmet. Existing emergency helmets lack a dedicated storage structure and take up a lot of space when not in use. In contrast, the helmet in this embodiment improves the convenience of storage and the safety of carrying the helmet by incorporating the storage components.

[0056] In a preferred embodiment, the portable emergency safety helmet includes a storage component comprising a folding handle 9 located on the top of the helmet body and a storage strap 7 located on the edge of the helmet body. The folding handle is connected to the helmet body via a rotating shaft and can rotate around the rotating shaft to fit against the outer surface of the helmet body. The storage strap is an elastic webbing with buckles 8 at both ends. When the helmet is not in use, the helmet can be tightened into a compact state using the storage strap.

[0057] The folding handle is made of lightweight plastic, and its length is adapted to the width of the top of the helmet. The handle is connected to the helmet via a rotating shaft made of stainless steel. Both ends pass through through holes at the ends of the handle and then embed into pre-drilled holes on the top of the helmet, allowing for easy unfolding during use and ensuring stability when the handle fits snugly against the helmet. The handle can rotate up to 180 degrees around the rotating shaft, ensuring a perfect fit to the outer surface of the helmet and preventing it from protruding from the helmet's contours.

[0058] The straps are made of highly elastic nylon webbing, with a moderate width to avoid localized deformation when tightening the helmet. Each end of the strap has a mating plastic buckle, with the male and female buckles securing them to the ends. The middle of the strap is sewn to the inside edge of the helmet body, with two evenly distributed fixing points along the edge, allowing the strap to symmetrically wrap around the helmet. To tighten, utilizing the elastic webbing's stretch properties, when the helmet is not in use, manually pull the straps towards the center of the helmet. The elastic deformation of the webbing creates a tightening force, causing the originally curved helmet body to contract inwards. Once tightened to a preset compact state (e.g., reduced to 1 / 3-1 / 2 of its unfolded size), fasten the buckles at both ends. The mechanical locking mechanism of the buckles maintains the tightening force, preventing the webbing from springing back and securing the compact shape.

[0059] Because the helmet's internal cushioning components consist of a foam layer and elastic fabric pockets, which are somewhat compressible, the tightening force of the straps can be further optimized for tightness through slight deformation of the cushioning layer, without damaging the helmet itself due to tightening. The helmet itself possesses a certain degree of rigidity, capable of withstanding the normal tightening pressure of the webbing, ultimately achieving a stable and compact storage state.

[0060] Existing helmet storage structures are often simply designed, with handles that are prone to wobbling or protruding, and straps that don't tighten effectively, resulting in them still taking up a lot of space when stored and being inconvenient to use when carrying. In contrast, the storage component in this embodiment features a folding handle that rotates and fits via a pivot, and storage straps that effectively tighten and secure the helmet using the elastic webbing's contraction force and the locking structure of the buckle. This makes the helmet more compact when stored and the handle easier to use when carrying, further improving its practicality for both storage and carrying.

[0061] In a preferred embodiment, the portable emergency safety helmet is made of basalt fiber composite material, the helmet body is 3-5mm thick, and the outer surface of the helmet body is coated with a wear-resistant and corrosion-resistant coating.

[0062] The helmet body is made of basalt fiber composite material. During manufacturing, basalt fibers are first woven into a base fabric in a specific direction. This base fabric is then layered with a resin matrix in a specific ratio and pressed into shape using a mold, forming the basic shape of the helmet body. Afterward, according to design requirements, the basic shape is polished and refined to ensure the thickness of the helmet body is controlled within a suitable range.

[0063] For the outer surface treatment of the helmet, the surface is first cleaned and polished to remove impurities and burrs. Then, a wear-resistant and anti-corrosion coating is applied by spraying. During spraying, the coating thickness is evenly controlled to ensure that the coating can completely cover the outer surface of the helmet. After the coating dries naturally, a stable protective layer is formed.

[0064] Existing helmets often suffer from a trade-off between protective performance and lightweight design, and their performance deteriorates due to wear and corrosion after prolonged use, affecting their lifespan. In contrast, the helmet body in this embodiment utilizes basalt fiber composite material, which inherently possesses both high strength and lightweight characteristics. Combined with a reasonable thickness design, it can control weight while ensuring protective performance. The wear-resistant and corrosion-resistant coating on the outer surface reduces wear and corrosion during daily use, extending the helmet's lifespan.

[0065] In a preferred embodiment, the portable emergency safety helmet has a pressure sensor on the annular airbag. The pressure sensor is electrically connected to a display screen located on the outside of the helmet body. The display screen is used to display the real-time pressure value inside the annular airbag.

[0066] A pressure sensor is installed at a suitable location on the outer surface of the annular airbag. The sensor is fixed with a special adhesive to ensure stable contact with the airbag surface for accurate pressure sensing. The lead wire of the pressure sensor passes through the edge gap of the annular airbag and extends along the pre-set wiring channel on the inner wall of the helmet.

[0067] The display uses a miniaturized LCD module, which is embedded in a pre-reserved mounting position on the outside of the helmet. The size of the mounting position is adapted to the display, and the display is fixed in place by clips, making the surface of the display almost flush with the outer surface of the helmet. The other end of the sensor lead wire connects to the corresponding interface on the display, and the connection is wrapped with insulating tape to ensure stability.

[0068] The helmet in this embodiment uses a pressure sensor installed in the ring-shaped airbag, along with a display screen on the outside of the helmet, to display the pressure value inside the airbag in real time. Users can accurately adjust the head circumference based on the displayed data, avoiding the drawbacks of adjusting by feeling alone and improving wearing comfort and stability.

[0069] In a preferred embodiment, in the portable emergency safety helmet, the basic buffer layer 2 is connected to the inner wall of the helmet body via an adhesive structure. The adhesive structure includes a hot melt adhesive layer 12 coated on the outer surface of the basic buffer layer and a fiber cloth layer 10 disposed on the inner wall of the helmet body and adapted to the hot melt adhesive layer. The hot melt adhesive layer and the fiber cloth layer are fixed by hot pressing. The edge of the basic buffer layer 2 is provided with at least two positioning protrusions 11, and the inner wall of the helmet body is provided with corresponding positioning grooves. The positioning protrusions are embedded in the positioning grooves to limit the circumferential displacement of the basic buffer layer.

[0070] The bonding structure must be adapted to the shape of the base buffer layer and the inner wall of the helmet body. First, a hot melt adhesive layer is evenly coated on the outer surface of the base buffer layer, controlling the thickness of the adhesive layer during coating to ensure complete coverage without overflowing the edges. Then, a fiber cloth layer is laid on the corresponding position on the inner wall of the helmet body. The material of the fiber cloth layer is compatible with the hot melt adhesive layer. It is then smoothly fixed to the inner wall of the helmet body using a pre-applied primer, ensuring the fiber cloth layer is wrinkle-free and free of air pockets. During assembly, appropriate pressure is applied to the base buffer layer and heat-pressed to fully bond the hot melt adhesive layer and the fiber cloth layer, achieving initial fixation of the base buffer layer to the inner wall of the helmet body.

[0071] The installation of the positioning structure requires coordination with the bonding structure. Positioning protrusions are installed at at least two symmetrical locations along the edge of the base buffer layer. These protrusions are integrally molded from the same EPP foam material as the base buffer layer, and are circular or square in shape. Correspondingly, positioning grooves are created at corresponding locations on the inner wall of the helmet body. The dimensions of the positioning grooves are adapted to the positioning protrusions, and the depth is slightly greater than the height of the positioning protrusions. When assembling the base buffer layer, the positioning protrusions are first aligned and embedded into the positioning grooves to restrict circumferential displacement of the base buffer layer on the inner wall of the helmet body, and then the heat-pressing bonding operation of the bonding structure is performed.

[0072] The connection between the basic buffer layer and the inner wall of the helmet body is prone to poor adhesion or circumferential displacement, affecting the buffering and protective effect. Furthermore, improperly designed connection structures can lead to assembly difficulties. In contrast, the connection structure in this embodiment achieves a stable bond through an adhesive structure composed of a hot melt adhesive layer and a fiber cloth layer. Simultaneously, the cooperation of positioning protrusions and positioning grooves restricts circumferential displacement, ensuring both connection stability and ease of assembly, thus better guaranteeing the effectiveness of the buffer protection components.

[0073] In a preferred embodiment, the portable emergency safety helmet has a folding handle with anti-slip texture and a hanging hole at the end of the handle, with a rubber anti-slip sleeve fitted inside the hanging hole.

[0074] Anti-slip textures are processed on the grip area of ​​the folding handle. The textures consist of horizontal or diagonal grooves with uniform spacing and controlled depth. This ensures that the handle surface is not too rough due to excessive depth, which would affect the grip, while also increasing the friction between the hand and the handle. The anti-slip textures are formed in one piece using a mold during handle manufacturing, avoiding damage to the handle structure during subsequent secondary processing.

[0075] A hanging hole is made at the end of the handle. The hole is a circular through hole, and its diameter is determined according to the size of commonly used hooks. The inner wall of the hanging hole is polished to remove burrs and prevent scratches to fingers or hooks during use. Then, a rubber anti-slip sleeve is inserted into the hanging hole. The outer diameter of the rubber anti-slip sleeve is adapted to the diameter of the hanging hole, and its inner side has slight protrusions. After being inserted, it can fit tightly against the inner wall of the hanging hole and is not easy to fall off. The rubber material itself has a certain degree of elasticity, which can reduce wear between the hook and the hanging hole.

[0076] Folding handles are prone to slipping when gripped, and the hanging holes at the ends of the handles are easily worn when suspended, affecting the user experience and the lifespan of the handle. The folding handle in this embodiment increases friction when gripped by incorporating anti-slip textures to prevent slipping; and reduces wear by installing rubber anti-slip sleeves inside the hanging holes, thus improving both convenience and safety during use, and extending the lifespan of the handle.

[0077] Although embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and examples shown and described herein.

Claims

1. A portable emergency safety helmet, characterized in that, The helmet includes a helmet body, a cushioning and protective assembly disposed inside the helmet body, and a head circumference adjustment assembly disposed inside the helmet body. The cushioning and protective assembly includes a basic cushioning layer and an emergency protective layer. The basic cushioning layer is connected to the inner wall of the helmet body and is a gradient density EPP foam layer. The emergency protective layer is an elastic cloth bag with built-in cushioning particles. The elastic cloth bag is connected to the basic cushioning layer by a snap fastener, and the cushioning particles inside the elastic cloth bag are expandable polystyrene particles. The head circumference adjustment assembly includes an annular airbag and a manual air pump. The annular airbag is fitted to the lower part of the inner wall of the helmet body, and the manual air pump is connected to the annular airbag through an air duct. The manual air pump is disposed on the outside of the helmet body, and the air duct penetrates the wall of the helmet body.

2. The portable emergency safety helmet according to claim 1, characterized in that, It also includes an emergency protection module integrated into the helmet body, which is an integral part of the helmet body.

3. The portable emergency safety helmet according to claim 2, characterized in that, The emergency support module includes a micro energy storage unit, an environmental monitoring component, and an emergency communication component. The micro energy storage unit is a flexible solar thin-film battery, which is attached to the outer surface of the helmet body. The environmental monitoring component includes a gas sensor and a temperature and humidity sensor integrated on the front of the helmet body. The gas sensor is used to detect the concentration of carbon monoxide and hydrogen sulfide, and the temperature and humidity sensor is used to collect ambient temperature and humidity data in real time. The emergency communication component includes a Bluetooth module and a positioning chip. The positioning chip is a Beidou positioning chip or a GPS dual-mode positioning chip.

4. The portable emergency safety helmet according to claim 3, characterized in that, The emergency support module also includes a voice interaction unit located on the side of the helmet body, which is electrically connected to the emergency communication component.

5. The portable emergency safety helmet according to claim 1, characterized in that, It also includes a storage component, which is located on the outside of the helmet body.

6. The portable emergency safety helmet according to claim 5, characterized in that, The storage assembly includes a folding handle on the top of the helmet body and a storage strap on the edge of the helmet body. The folding handle is connected to the helmet body via a rotating shaft and can rotate around the rotating shaft to fit against the outer surface of the helmet body. The storage strap is an elastic webbing with buckles at both ends. When the helmet is not in use, the helmet can be tightened into a compact state using the storage strap.

7. The portable emergency safety helmet according to claim 1, characterized in that, The helmet body is made of basalt fiber composite material, with a thickness of 3-5mm, and the outer surface of the helmet body is coated with a wear-resistant and corrosion-resistant coating.

8. The portable emergency safety helmet according to claim 1, characterized in that, The annular airbag is equipped with a pressure sensor, which is electrically connected to a display screen located on the outside of the helmet body. The display screen is used to display the real-time pressure value inside the annular airbag.

9. The portable emergency safety helmet according to claim 1, characterized in that, The basic buffer layer is connected to the inner wall of the helmet body through an adhesive structure. The adhesive structure includes a hot melt adhesive layer coated on the outer surface of the basic buffer layer and a fiber cloth layer adapted to the hot melt adhesive layer and disposed on the inner wall of the helmet body. The hot melt adhesive layer and the fiber cloth layer are fixed by hot pressing. The edge of the basic buffer layer is provided with at least two positioning protrusions, and the inner wall of the helmet body is provided with corresponding positioning grooves. The positioning protrusions are embedded in the positioning grooves to limit the circumferential displacement of the basic buffer layer.

10. The portable emergency safety helmet according to claim 5, characterized in that, The storage component has a folding handle with anti-slip texture and a hanging hole at the end of the handle, which is fitted with a rubber anti-slip sleeve.

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