Fire fighting helmet capable of supplying oxygen in emergency

Abstract

The invention discloses a fire fighting helmet capable of supplying oxygen in emergency, which comprises a helmet body, a breathing mask and an oxygen tank, the breathing mask is adjustably mounted in front of the helmet body, the oxygen tank is mounted below the breathing mask in a communicating manner, a connecting plate group with an adjustable state is detachably arranged at a tube body of the breathing mask, and the connecting plate group is detachably connected with the breathing mask. A fixing part is mounted above the connecting plate group, is matched with the brim of the helmet body, and is adhered to the brim of the helmet body; the breathing mask is installed on the helmet body through the connecting plate set, the oxygen tank is arranged on the side edge of the oxygen mask in a communicating mode, support is provided for temporary oxygen supply of firefighters, then the firefighters can conveniently take off an oxygen supply system of the straps when passing through a narrow space, the load is reduced, and the safety of the firefighters is improved. And the danger probability of firefighters due to lack of oxygen supply is avoided.

Description

Technical Field

[0001] This invention relates to the field of fire-fighting equipment, specifically a fire helmet capable of providing emergency oxygen supply. Background Technology

[0002] In fire rescue operations, the environment at fire scenes is extremely harsh, posing multiple safety hazards such as high-temperature flames, falling objects from heights, and toxic and harmful gases. Furthermore, the conditions are often characterized by low oxygen levels or even oxygen deficiency, severely threatening the lives of firefighters. To ensure the operational capabilities and safety of firefighters in hazardous environments, the reliability and compatibility of protective equipment are crucial, with fire helmets and oxygen supply systems being two core types of protective equipment.

[0003] Currently, in the widely used firefighting equipment configurations within the industry, fire helmets and oxygen supply systems are separately configured. The core function of the fire helmet focuses on head protection, primarily consisting of a shell, buffer layer, face mask, and cape, providing impact resistance, high-temperature protection, penetration resistance, and insulation to protect against physical and thermal radiation injuries at fire scenes. The oxygen supply system is mainly a self-contained breathing apparatus (SCBA), whose core components include a high-pressure cylinder, pressure reducing valve, air supply valve, face mask, and shoulder straps. Worn on the back of the firefighter via the shoulder straps, it provides a clean and stable source of breathing air, ensuring respiratory safety in environments with dense smoke, oxygen deficiency, or toxic gases.

[0004] In actual fire and rescue operations, although the above-mentioned separate configuration can achieve basic protection and oxygen supply functions, it has gradually exposed many limitations and safety hazards in complex and ever-changing rescue scenarios.

[0005] For example, mobility and operational flexibility are limited. The high-pressure gas cylinders and carrying straps of the oxygen supply system, when carried on the back, increase the physical burden on firefighters, especially in scenarios such as climbing, traversing narrow spaces (such as gaps in collapsed buildings or underground passages), and working at heights. The oxygen supply system carried on the back is prone to scraping or getting caught in the surrounding environment, limiting the range of motion and speed of movement of firefighters, affecting rescue efficiency, and may even cause secondary dangers due to equipment entanglement. Summary of the Invention

[0006] The purpose of this invention is to provide a fire helmet that can provide emergency oxygen supply, aiming to solve the problem that existing fire oxygen supply systems make it inconvenient for firefighters to pass through narrow spaces.

[0007] The present invention is implemented as follows: a fire helmet capable of emergency oxygen supply includes a helmet body, a breathing mask and an oxygen tank. The breathing mask is adjustable and installed in front of the helmet body, and the oxygen tank is connected and installed below the breathing mask. An adjustable connecting plate assembly is detachably provided at the tube of the breathing mask. A fixing component is installed above the connecting plate assembly. The fixing component is adapted to the brim of the helmet body and is attached to the brim of the helmet body.

[0008] Preferably, the breathing mask includes a breathing valve, a duckbill one-way valve, and a pressure safety valve. The breathing valve is disposed on both sides of the mask surface, and a duckbill one-way valve is disposed between the breathing valves and connected to them. The lower part of the breathing valve is connected to an oxygen tank. Preferably, the helmet body is made of flame-retardant and impact-resistant composite material, and the inner side is provided with a buffer protective layer and a head fixation component; the buffer protective layer is made of flame-retardant sponge material, and the head fixation component includes an adjustable headband and a chin strap, with a quick buckle at the end of the chin strap.

[0009] Preferably, the surface of the helmet body is coated with a high-temperature resistant reflective coating, and an anti-fog goggle can be installed at the front of the helmet body, with the goggle and the helmet body having a hinged structure.

[0010] Preferably, the connecting plate assembly includes a first end plate and a second end plate distributed vertically, and an intermediate plate located between the first end plate and the second end plate. The intermediate plate is connected to the first end plate and the second end plate by ear plates and bolts, and the bolts press against the ear plates facing each other.

[0011] Preferably, the connecting plate assembly further includes a tightening ring plate, the central angle of the tightening ring plate is less than 360°, and a snap-fit ​​plate is fixedly provided at both ends of the tightening ring plate; a snap-fit ​​groove is provided on the second end plate, and the two snap-fit ​​plates are connected by bolts and located in the snap-fit ​​groove.

[0012] Preferably, a connecting component is detachably fitted onto the helmet body, and a light is provided on the side of the helmet body, the light being detachably mounted on the connecting component.

[0013] Preferably, the connecting component includes two parallel connecting plates, both ends of which are adjustablely provided with connecting straps; the length of the connecting straps is adjustable and is provided through the limiting grooves protruding at both ends of the helmet body, while the recessed grooves provided on the side wall of the connecting plates fit the helmet body.

[0014] Preferably, a first arc-shaped plate is fixedly installed at the end of each connecting plate, and two ear plates are fixedly installed on the upper and lower sides of the first arc-shaped plate. A connecting shaft is connected to the two ear plates through bearings, and the end of the connecting plate is connected to the connecting shaft. A second arc-shaped plate can be detachably installed on the side of each first arc-shaped plate, and the lighting lamp is installed through the space formed by the first arc-shaped plate and the second arc-shaped plate.

[0015] Preferably, a splicing groove is provided on the connecting shaft, and a clamping plate is detachably provided at the splicing groove. Grooves are provided on the vertical sidewalls where the clamping plate and the connecting shaft fit together. The width of the grooves is less than the thickness of the connecting belt, and the end of the connecting belt extends into the space formed by the clamping plate and the connecting shaft.

[0016] Preferably, a plum blossom column is fixedly installed at the end of the connecting shaft protruding ear plate, and a lifting plate is relatively stationary on the plum blossom column. Multiple brake rods are evenly distributed on the edge of the lifting plate, and the brake rods are inserted into the brake holes of the ear plate. A top plate is detachably installed at the end of the plum blossom column, and a spring is installed between the top plate and the lifting plate. The spring is in a compressed state.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The present invention has a breathing mask installed on the helmet body through a connecting plate assembly, and an oxygen tank is provided on the side of the oxygen mask to provide support for temporary oxygen supply for firefighters. This makes it easier for firefighters to remove the oxygen supply system of the harness when passing through narrow spaces, reducing the burden and avoiding the increased chance of firefighters facing danger due to lack of oxygen supply.

[0018] The connecting component of this invention includes two connecting plates and an adjustable connecting strap between the two connecting plates. The distance between the two connecting plates can be adjusted by adjusting the length of the connecting strap, providing support for the connecting plates to fit the helmet body and for the connecting strap to be in a taut state, thereby realizing the detachable connection between the lighting lamp and the helmet body. Attached Figure Description

[0019] Figure 1 This is a first structural schematic diagram of the entire invention; Figure 2 This is a schematic diagram of the structure of the breathing mask of the present invention; Figure 3 This is a schematic diagram of the structure of the first end plate, the second end plate, and the intermediate plate of the present invention; Figure 4 This is a second structural schematic diagram of the entire invention; Figure 5 This is a schematic diagram of the structure of the helmet body of the present invention; Figure 6 This is a structural schematic diagram of the lighting lamp and connecting components of the present invention; Figure 7 This is a schematic diagram of the structure of the connecting component of the present invention; Figure 8 This is a schematic diagram of the structure of the first arc-shaped plate of the present invention; Figure 9 This is a schematic diagram of the connecting shaft structure of the present invention; Figure 10 This is a schematic diagram of the internal structure of the present invention.

[0020] In the diagram: 1. Helmet body; 11. Protrusion; 12. Limiting groove; 2. Lighting lamp; 3. Breathing mask; 31. Fixing component; 32. First end plate; 33. Second end plate; 331. Snap-fit ​​groove; 34. Middle plate; 35. Tightening ring plate; 351. Snap-fit ​​plate; 36. Pressure safety valve; 37. Duckbill one-way valve; 38. Breathing valve; 4. Oxygen tank; 5. Connecting assembly; 51. Connecting plate; 511. Recessed groove; 52. Linkage; 53. First arc plate; 531. Ear plate; 532. Brake hole; 533. Connecting shaft; 534. Lifting plate; 5341. Brake lever; 535. Splicing groove; 536. Clamping plate; 537. Plum blossom column; 538. Spring; 539. Top plate; 54. Second arc plate; 541. Rubber layer. Detailed Implementation

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0023] To meet the emergency oxygen supply needs of firefighters in scenarios such as climbing, traversing confined spaces (such as gaps in collapsed buildings and underground passages), and working at heights, and to reduce their burden while still meeting their emergency oxygen supply needs, this embodiment provides a new fire helmet.

[0024] like Figure 1 As shown, the fire helmet includes a helmet body 1, a breathing mask 3, and an oxygen tank 4. The breathing mask 3 is adjustable and mounted at the front of the helmet body 1, while the oxygen tank 4 is mounted below the helmet body 1 via an oxygen interface structure. The breathing mask 3 is a commonly used type, including at least a breathing valve 38, a duckbill one-way valve, and a pressure safety valve. When firefighters need to pass through confined spaces or work at heights, they can remove the oxygen supply system from the harness and use the oxygen supply system composed of the breathing mask 3 and the oxygen tank 4 to provide oxygen, then place the breathing mask 3 over the firefighter's mouth and nose. This operation allows for a brief oxygen supply even after reducing the firefighter's circumference, avoiding increased danger due to oxygen deficiency.

[0025] The helmet body 1 is a one-piece shell structure made of flame-retardant and impact-resistant composite material. This material has flame-retardant, impact-resistant, and high-temperature resistant properties, and can withstand high-temperature flame baking and heavy object impact. The inner side of the helmet body 1 is equipped with a cushioning protective layer and a head-fixing component. The cushioning protective layer is made of flame-retardant sponge material, 2-3cm thick, which can effectively absorb impact energy and reduce the risk of head injury. The head-fixing component includes an adjustable headband and a chin strap. The headband's tightness is adjusted via Velcro, and the chin strap has a quick-release buckle at the end for easy and quick putting on and taking off.

[0026] The helmet body 1 is coated with a high-temperature resistant reflective coating, making it easy for teammates to spot in dense smoke. An anti-fog visor is hinged to the front of the helmet body. The visor is made of polycarbonate and coated with an anti-fog film to prevent fogging in high-temperature environments, thus protecting vision.

[0027] like Figure 2 As shown, in order to stably position the breathing mask 3 in front of the helmet body 1, an adjustable connecting plate assembly is detachably installed on the tube of the breathing mask 3. A fixing member 31 is installed above the connecting plate assembly. The fixing member 31 is adapted to the brim of the helmet body 1 and is detachably attached to the brim of the helmet body 1. Because the fixing member 31 is detachably attached to the brim of the helmet body 1, the breathing mask 3 can be easily installed and removed as needed. Furthermore, the adjustable state of the connecting plate assembly allows for easy adjustment of the position of the breathing mask 3 to ensure effective oxygen supply directly to the mouth and nose. Additionally, the connecting plate assembly can be made of transparent material to reduce obstruction of the firefighter's vision.

[0028] like Figure 3 As shown, specifically, the connecting plate assembly includes a tightening ring plate 35, a first end plate 32 and a second end plate 33 distributed vertically, and an intermediate plate 34 located between the first end plate 32 and the second end plate 33. The intermediate plate 34 is connected to the first end plate 32 and the second end plate 33 via lugs and bolts. The bolts press against the opposing lugs, achieving a hinged connection between the intermediate plate 34, the first end plate 32, and the second end plate 33, facilitating the adjustment of the position of the breathing mask 3. For example, when the intermediate plate 34 rotates relative to the first end plate 32, it causes the second end plate 33 and the breathing mask 3 to move synchronously. At this time, the breathing mask 3 is in an inclined state. Then, by controlling the rotation of the second end plate 33 relative to the intermediate plate 34, the breathing mask 3 can be positioned in an optimal state and cover the mouth and nose.

[0029] like Figure 3As shown, in order to fit the tightening ring plate 35 onto the tube of the breathing mask 3, the central angle of the tightening ring plate 35 is less than 360°, and a snap-fit ​​plate 351 is fixedly provided at both ends of the tightening ring plate 35. A snap-fit ​​groove 331 is provided on the second end plate 33, and the two snap-fit ​​plates 351 are connected by bolts and located in the snap-fit ​​groove 331. In this case, the tightening ring plate 35 is in a contracted state, thereby securely clamping the tube of the breathing mask 3. Example 2

[0030] like Figure 4 , Figure 6 As shown, based on Embodiment 1, in order to provide lighting for firefighters, a connecting component 5 is detachably fitted onto the helmet body 1, and a lighting lamp 2 is also provided on the side of the helmet body 1. The lighting lamp 2 is detachably mounted on the connecting component 5. The lighting lamp 2 can be configured as a flashlight.

[0031] like Figure 7 As shown, in order to detachably install the connecting assembly 5 onto the helmet body 1, the connecting assembly 5 includes two parallel connecting plates 51, and both ends of the two connecting plates 51 are adjustablely provided with connecting straps 52. Therefore, when assembling the connecting assembly 5 and the helmet body 1, the recessed grooves 511 on the sidewalls of the connecting plates 51 are made to fit against the helmet body 1, and then the length of the connecting straps 52 is adjusted to keep them taut, thereby controlling the two connecting plates 51 to clamp and install the helmet body 1.

[0032] like Figure 6 , Figure 7 As shown, in order to limit the position of the connecting component 5 relative to the helmet body 1, protrusions 11 are provided at both the front and rear ends of the helmet body 1, and limiting grooves 12 are provided on each protrusion 11. When adjusting the length of the connecting strap 52, the connecting strap 52 is set through the limiting groove 12, and the position of the connecting strap 52 is limited by the limiting groove 12. At the same time, it cooperates with the connecting plate 51 and the structure of the helmet body 1 to achieve stable installation of the connecting component 5 and the helmet body 1.

[0033] like Figure 7 As shown, to adjust the length of the connecting strap 52, a first arc-shaped plate 53 is fixedly installed at one end of each connecting plate 51. Two ear plates 531 are fixedly installed on the upper and lower sides of the first arc-shaped plate 53, and a connecting shaft 533 is connected to the two ear plates 531 via bearings. An ear plate 531 is also provided at the other end of each connecting plate 51, and a connecting shaft 533 is provided at the ear plate 531. The end of the connecting strap 52 is connected to the connecting shaft 533. With this arrangement, the length of the connecting strap 52 can be adjusted by rotating the connecting shaft 533, thereby enabling the assembly and disassembly of the connecting component 5 from the helmet body 1.

[0034] like Figure 7 , Figure 8As shown, specifically, a splicing groove 535 is provided on the connecting shaft 533, and a clamping plate 536 is detachably provided at the splicing groove 535. Grooves are provided on the vertical sidewalls where the clamping plate 536 and the connecting shaft 533 are in contact. The width of the grooves is less than the thickness of the connecting belt 52. Therefore, the end of the connecting belt 52 extends into the space formed by the clamping plate 536 and the connecting shaft 533. When the connecting shaft 533 and the connecting belt 52 are stably connected, the connecting belt 52 can be wound up by rotating the connecting shaft 533.

[0035] like Figure 8 As shown, to achieve a stable connection between the helmet body 1 and the connecting assembly 5, a quincunx column 537 is fixedly installed at the end of the connecting shaft 533 protruding from the ear plate 531. A lifting plate 534 is mounted relatively stationary on the quincunx column 537. Multiple brake rods 5341 are evenly distributed along the edge of the lifting plate 534, and multiple brake holes 532 are equally distributed on the ear plate 531. When it is necessary to rotate the connecting shaft 533 to adjust the length of the connecting belt 52, the brake rods 5341 disengage from the brake holes 532, allowing the connecting shaft 533 to rotate to retract or extend the connecting belt 52. After adjusting the length of the connecting belt 52, the end of the brake rod 5341 is inserted into the brake hole 532. With the cooperation of the brake rod 5341 and the brake hole 532, the connecting shaft 533 is braked, forcing the connecting belt 52 into a taut state.

[0036] like Figure 8 As shown, in order to control the rotation of the coupling 533 and ensure the stable insertion of the brake lever 5341 into the brake hole 532, a top plate 539 is detachably fitted onto the end of the plum blossom column 537. A spring 538 is installed between the top plate 539 and the lifting plate 534, and the spring 538 is in a compressed state. Firefighters can rotate the top plate 539 to control the rotation of the coupling 533. When rotating, the firefighters must simultaneously hold the top plate 539 and the lifting plate 534 to release the brake on the coupling 533. After adjusting the length of the connecting belt 52, the lifting plate 534 is released. Under the action of the spring 538, the lifting plate 534 descends and the brake lever 5341 is inserted into the brake hole 532.

[0037] like Figure 7 As shown, after the connecting component 5 is stabilized on the helmet body 1, in order to stably mount the lighting lamp 2 on the side of the helmet body 1, a second arc-shaped plate 54 is detachably provided on the side of each first arc-shaped plate 53. The lighting lamp 2 is arranged through the space formed by the first arc-shaped plate 53 and the second arc-shaped plate 54. A rubber layer 541 can be provided at the contact points between the first arc-shaped plate 53, the second arc-shaped plate 54 and the lighting lamp 2.

[0038] When it is necessary to adjust the orientation of the light 2, the lengths of the two connecting strips 52 can be adjusted so that the connecting plate 51 is not placed parallel. In this case, the orientation of the light 2 can be adjusted.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fire helmet capable of providing emergency oxygen supply, comprising a helmet body (1), characterized in that, It also includes a breathing mask (3) and an oxygen tank (4). The breathing mask (3) is adjustable and installed in front of the helmet body (1). The oxygen tank (4) is installed below the breathing mask (3). An adjustable connecting plate assembly is detachably provided at the tube of the breathing mask (3). A fixing member (31) is installed above the connecting plate assembly. The fixing member (31) is adapted to the brim of the helmet body (1) and is attached to the brim of the helmet body (1).

2. The fire helmet capable of providing emergency oxygen supply according to claim 1, characterized in that, The breathing mask (3) includes a breathing valve (38), a duckbill one-way valve (37) and a pressure safety valve (36). The breathing valve (38) is disposed on both sides of the surface of the mask (3). The duckbill one-way valve (37) is disposed between the breathing valves (38) and is connected to the breathing valve (38). The lower part of the breathing valve (38) is connected to the oxygen tank (4).

3. The fire helmet capable of providing emergency oxygen supply according to claim 1, characterized in that, The surface of the helmet body (1) is coated with a high-temperature reflective coating. The front of the helmet body can be equipped with an anti-fog goggle, which is hinged to the helmet body. The helmet body (1) is made of flame-retardant and impact-resistant composite material, and has a buffer protective layer and a head fixing component on the inner side. The buffer protective layer is made of flame-retardant sponge material, and the head fixing component includes an adjustable headband and a chin strap. The end of the chin strap is equipped with a quick buckle.

4. The fire helmet capable of providing emergency oxygen supply according to claim 1, characterized in that, The connecting plate assembly includes a first end plate (32) and a second end plate (33) distributed vertically, and an intermediate plate (34) located between the first end plate (32) and the second end plate (33). The intermediate plate (34) is connected to the first end plate (32) and the second end plate (33) by ear plates and bolts, and the bolts press against the ear plates facing each other.

5. A fire helmet capable of providing emergency oxygen supply according to claim 4, characterized in that, The connecting plate assembly also includes a tightening ring plate (35) sleeved on the tube of the breathing mask (3), the central angle of the tightening ring plate (35) is less than 360°, and a snap-fit ​​plate (351) is fixedly provided at both ends of the tightening ring plate (35); a snap-fit ​​groove (331) is provided on the second end plate (33), and the two snap-fit ​​plates (351) are connected by bolts and located in the snap-fit ​​groove (331).

6. A fire helmet capable of providing emergency oxygen supply according to claim 1, characterized in that, A connecting component (5) is detachably fitted onto the helmet body (1), and a lighting lamp (2) is also provided on the side of the helmet body (1). The lighting lamp (2) is detachably mounted on the connecting component (5).

7. A fire helmet capable of providing emergency oxygen supply according to claim 6, characterized in that, The connecting component (5) includes two parallel connecting plates (51), and both ends of the two connecting plates (51) are adjustablely provided with connecting straps (52); the length of the connecting straps (52) is adjustable, and they are provided through the limiting grooves (12) of the protrusions (11) at both ends of the helmet body (1), while the recessed grooves (511) provided on the side wall of the connecting plate (51) fit the helmet body (1).

8. A fire helmet capable of providing emergency oxygen supply according to claim 7, characterized in that, A first arc plate (53) is fixedly provided at one end of each connecting plate (51). Two ear plates (531) are fixedly provided on the upper and lower sides of the first arc plate (53). A connecting shaft (533) is connected to the two ear plates (531) by bearings. The end of the connecting belt (52) is connected to the connecting shaft (533). A second arc plate (54) can be detachably provided on the side of each first arc plate (53). The lighting lamp (2) is arranged through the space formed by the first arc plate (53) and the second arc plate (54).

9. A fire helmet capable of providing emergency oxygen supply according to claim 8, characterized in that, A splicing groove (535) is provided on the connecting shaft (533), and a clamping plate (536) is detachably provided at the splicing groove (535). A groove is provided on the vertical side wall where the clamping plate (536) and the connecting shaft (533) fit together. The width of the groove is less than the thickness of the connecting band (52). The end of the connecting band (52) extends into the space formed by the clamping plate (536) and the connecting shaft (533).

10. A fire helmet capable of providing emergency oxygen supply according to claim 9, characterized in that, A plum blossom column (537) is fixedly installed at the end of the connecting shaft (533) protruding from the ear plate (531). A lifting plate (534) is relatively stationary on the plum blossom column (537). Multiple brake rods (5341) are evenly distributed on the edge of the lifting plate (534). The brake rods (5341) are inserted into the brake holes (532) of the ear plate (531). A top plate (539) is detachably installed at the end of the plum blossom column (537). A spring (538) is provided between the top plate (539) and the lifting plate (534). The spring (538) is in a compressed state.

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