Personal protection device in forest fire
By adopting oxygen cylinders with fiber-wrapped inner liners and multi-layer protective clothing design, the problems of heavy weight and low gas storage pressure of forest escape respirators are solved, lightweight and efficient protection is achieved, ensuring the safe escape of people in forest fires.
Patent Information
- Application Number
- CN202421891810.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-08-06
AI Technical Summary
Existing forest escape breathing apparatuses have heavy high-pressure cylinders with low gas pressure, making them inconvenient to carry and unable to meet the needs of escaping fire scenes for extended periods, thus affecting the efficiency of firefighters' actions and the lightweighting of equipment.
The oxygen cylinder structure with a fiber-wrapped liner and a multi-layer protective clothing design, including flame-retardant gauze, phase change absorption material layer, glass fiber insulation layer, aramid fiber explosion-proof layer and quartz fiber insulation layer, combined with an isolated oxygen supply unit and a one-piece protective clothing, reduces the weight of the oxygen cylinder and provides lightweight and efficient protection.
The oxygen cylinders have been made lighter, reducing the overall weight of personal protective equipment, improving portability and safety, and ensuring the safe escape of people in forest fires.
Smart Images

Figure CN223439045U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fire emergency equipment technical field especially relates to a personal protection device in forest fire. BACKGROUND
[0002] China is a country that is significantly affected by climate and has frequent forest fires in general, and forest fires are a kind of natural disasters that are strong in suddenness, large in destructiveness, and difficult to handle and rescue. In recent years, affected by global warming and frequent human activities in forest areas, the frequency and harm of forest fires are on the rise and increasing, which greatly affects the quantity and quality of forest resources, brings great threat to ecological civilization construction and ecological safety, and causes serious harm to biodiversity and people's life and property safety.
[0003] Forest fire "explosion" is one of the most dangerous disasters in forest fires. Affected by the combination of topography, combustible materials and meteorological conditions, explosion is mainly powered by combustion, accompanied by shock waves, and the specific forms are usually convection column, flying fire, plume fire, high-temperature heat wave, fire whirlwind, etc. The disaster is prone to cause large-scale, fixed-point, rapid and unstable forest fire spread, which seriously threatens the personal safety of trapped personnel.
[0004] Forest escape respirator, as essential protective equipment for personnel, can provide sufficient gas for personnel within a certain period of time, ensure personnel health and safety, and is the primary equipment for effective escape in forest fires. According to the "Forest Fire Fighting Technical Regulations", the protective equipment of fire fighters should be improved and equipped with escape respirators.
[0005] At present, the high-pressure gas cylinder of the forest escape respirator is mostly made of metal steel, which has poor corrosion resistance, is heavy and inconvenient to carry, has low gas storage pressure and protection time. Taking the commonly used 45min compressed oxygen self-rescuer as an example, a 0.38L high-pressure seamless steel cylinder is used, and the weight of a single cylinder is about 0.7kg, which accounts for about one third of the weight of the entire self-rescuer rescue device, affecting work efficiency and easily causing bumps and damage. The oxygen cylinder has a gas storage pressure of 20MPa and a rated protection time of 45min. If waiting for rescue on site, the required protection time is 4 times the rated protection time of the self-rescuer, which makes it impossible to meet the needs of personnel to escape from the fire scene for a long time. In addition, due to the relatively large weight of the cylinder itself, it increases the burden of firefighters and makes it inconvenient to move, which is not conducive to fire fighting operations. In some technologies, the weight of the cylinder in the self-rescuer accounts for a large proportion, which affects the lightweight of the equipment and restricts the development of new equipment. UTILITY MODEL CONTENTS
[0006] The utility model aims to provide a personal protection device in forest fire, which reduces the overall weight of the cylinder and the personal protection device.
[0007] In order to achieve the above object, the utility model provides a kind of personal protection device in forest fire, including
[0008] Storage box, including cover and box, cover is detachably covered in box, box is equipped with shoulder strap;
[0009] Oxygen cylinder, placed in box, including inner bag and fiber wrapping part wrapped in the outer side of inner bag, the gas outlet of oxygen cylinder is equipped with switch valve;
[0010] Isolation type oxygen supply part, placed in box, including mouth, air bag, oxygen supply pipe and exhaust pipe, mouth is communicated with air bag by oxygen supply pipe, air bag is communicated with oxygen cylinder by oxygen supply channel, one end of exhaust pipe is communicated with mouth, one-way valve is equipped on oxygen supply pipe and exhaust pipe, in use, mouth can be taken out the outside of box;
[0011] Connected protective clothing, placed in box, including protective clothing body and full-closed face mask.
[0012] Optionally, box includes storage cavity and storage cavity, the opening of storage cavity and storage cavity is located at the different side of box, oxygen cylinder and isolation type oxygen supply part are placed in storage cavity, cover is used to close storage cavity, connected protective clothing is placed in storage cavity, and the opening of storage cavity is equipped with press type first opening and closing door.
[0013] Optionally, box further includes emergency supplies room, and the opening of emergency supplies room is equipped with press type second opening and closing door.
[0014] Optionally, storage cavity is further equipped with early warning system, and early warning system includes light sensor, data transmission module, processor, data sending module and alarm module, light sensor is signal connected with data transmission module, data transmission module is signal connected with processor, data sending module and alarm module are signal connected with processor respectively, and data sending module is further signal connected with control center;
[0015] Box is further equipped with battery slot, and battery slot is used to install battery for power supply of early warning system;
[0016] When connected protective clothing is placed in storage cavity, it is covered on light sensor.
[0017] Optionally, isolation type oxygen supply part further includes exhalation treatment tank, other end of exhaust pipe is communicated with exhalation treatment tank, exhalation treatment tank is communicated with air bag by connecting pipe, and one-way valve is equipped on connecting pipe.
[0018] Optionally, air bag is equipped with air supplementing pressure plate;And / or
[0019] Air bag is equipped with first pressure relief valve.
[0020] Optionally, oxygen supply channel is equipped with air pressure gauge.
[0021] Optionally, the fiber wrapping part comprises a carbon fiber layer, the carbon fiber layer comprises a first carbon fiber layer and a second carbon fiber layer, the first carbon fiber layer and the second carbon fiber layer are arranged alternately along the thickness direction, and the fiber direction of the first carbon fiber layer and the fiber direction of the second carbon fiber layer are different.
[0022] Optionally, the fiber direction of the first carbon fiber layer and the fiber direction of the second carbon fiber layer are 90 degrees.
[0023] Optionally, the protective clothing body comprises, from inside to outside, a flame-retardant gauze, a phase change absorbing material layer, a glass fiber heat insulation layer, an aramid fiber explosion-proof layer and a quartz fiber heat insulation layer.
[0024] Optionally, the full-closed mask comprises a cap body and an anti-fog lens, and the full-closed mask further comprises a second pressure relief valve.
[0025] Optionally, the protective clothing body has a flame-retardant zipper and an elastic sleeve.
[0026] Optionally, the cover body and the box body are connected through a quick lock.
[0027] The above technical scheme of the utility model has the following advantages:
[0028] The personal protection device in the forest fire comprises a storage box, an oxygen cylinder, an isolated oxygen supply part and a one-piece protective clothing, the storage box comprises a cover body and a box body, the cover body is detachably covered on the box body, and a shoulder strap is arranged on the box body. The oxygen cylinder and the one-piece protective clothing are placed in the box body, wherein the oxygen cylinder comprises an inner container and a fiber wrapping part wrapped outside the inner container, and a switch valve is arranged at the gas outlet of the oxygen cylinder. The one-piece protective clothing comprises a protective clothing body and a full-closed mask. The isolated oxygen supply part is placed in the box body, and when used, the mouthpiece is taken out of the box body. The isolated oxygen supply part comprises a mouthpiece, an air bag, an oxygen supply pipe and an exhaust pipe, the mouthpiece is communicated with the air bag through the oxygen supply pipe, the air bag is communicated with the oxygen cylinder through an oxygen supply channel, one end of the exhaust pipe is communicated with the mouthpiece, and a one-way valve is arranged on the oxygen supply pipe and the exhaust pipe. The oxygen cylinder of the personal protection device adopts the structure that the fiber wrapping part wraps the inner container, the gas bearing capacity of the inner container is increased, the thickness of the inner container is reduced, the self-weight of the oxygen cylinder is reduced, the oxygen storage capacity is ensured, corrosion resistance and light weight are achieved, the overall weight of the personal protection device in the forest fire is reduced, and equipment light weight is realized.
[0029] The utility model provides a kind of personal protection device in forest fire, and the protection body is sequentially included from inside to outside flame-retardant gauze, phase change absorbing material layer, glass fiber heat insulation layer, aramid fiber explosion-proof layer and quartz fiber heat insulation layer. The connected protective clothing thus prepared has the characteristics of light weight, high strength, impact resistance, etc., and can provide protection and thermal insulation when the wind direction changes, ensuring the safety of the personnel in distress and further reducing the overall weight of the device. BRIEF DESCRIPTION OF DRAWINGS
[0030] The utility model drawing is only provided for the purpose of illustration, and the proportions and quantities of the components in the drawing may not be consistent with the actual product.
[0031] Figure 1 It is an appearance structure schematic view of a kind of personal protection device in forest fire in the utility model embodiment;
[0032] Figure 2 It is the internal structure schematic view after one side of a kind of box is removed in the utility model embodiment;
[0033] Figure 3 It is the structure schematic view of a kind of connected protective clothing in the utility model embodiment;
[0034] Figure 4 It is the local section schematic view of a kind of protective clothing main body in the utility model embodiment;
[0035] Figure 5 It is the section schematic view of a kind of oxygen cylinder in the utility model embodiment.
[0036] In the drawing:
[0037] 1: storage box;
[0038] 11: cover body;
[0039] 12: box;
[0040] 121: storage cavity;
[0041] 122: storage cavity;
[0042] 123: first opening and closing door;
[0043] 124: emergency supplies room;
[0044] 125: second opening and closing door;
[0045] 13: quick lock;
[0046] 2: oxygen cylinder;
[0047] 21: inner container;
[0048] 22: fiber wrapping part;
[0049] 221: first carbon fiber layer;
[0050] 222: second carbon fiber layer;
[0051] 23: switch valve;
[0052] 231: pressure regulating rod;
[0053] 24: oxygen supply channel;
[0054] 25: air pressure gauge;
[0055] 3: isolated oxygen supply part;
[0056] 31: mouthpiece;
[0057] 32: air bag;
[0058] 33: exhaust pipe;
[0059] 34: air supplementing pressure plate;
[0060] 35: first pressure relief valve;
[0061] 36: exhalation processing tank;
[0062] 4: connected protective clothing;
[0063] 41: protective clothing body;
[0064] 411: flame-retardant gauze;
[0065] 412: phase change absorbing material layer;
[0066] 413: glass fiber heat insulation layer;
[0067] 414: aramid fiber explosion-proof layer;
[0068] 415: quartz fiber heat insulation layer;
[0069] 42: fully enclosed face mask;
[0070] 421: cap body part;
[0071] 422: anti-fog lens;
[0072] 423: second pressure relief valve;
[0073] 43: flame-retardant zipper;
[0074] 5: early warning system. DETAILED DESCRIPTION
[0075] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0076] As shown in Figures 1-3 the utility model embodiments provide a personal protection device in forest fire, including storage box 1, oxygen cylinder 2, isolated oxygen supply part 3 and connected protective clothing 4.
[0077] Among them, referring to Figure 1 the utility model embodiments provide a personal protection device in forest fire, including storage box 1, oxygen cylinder 2, isolated oxygen supply part 3 and connected protective clothing 4.
[0078] Referring to Figure 2 the utility model embodiments provide a personal protection device in forest fire, including storage box 1, oxygen cylinder 2, isolated oxygen supply part 3 and connected protective clothing 4.
[0079] The isolated oxygen supply part 3 is placed in the box body 12, and the isolated oxygen supply part 3 includes a mouth utensil 31, a gas bag 32, an oxygen supply pipe (not shown in the figure) and an exhaust pipe 33, the mouth utensil 31 is communicated with the gas bag 32 through the oxygen supply pipe, the gas bag 32 is communicated with the oxygen cylinder 2 through the oxygen supply channel 24, one end of the exhaust pipe 33 is communicated with the mouth utensil 31, and the oxygen supply pipe and the exhaust pipe 33 are all provided with a one-way valve (not shown in the figure), when being placed in the box body 12, the oxygen supply pipe is coiled together. In use, the mouth utensil 31 can be taken out from the box body 12. In the embodiment, preferably, the one-way valve is a thin film one-way sheet.
[0080] The connected protective clothing 4 is folded and placed in the box body 12, and can be taken out and worn in use. Referring to Figure 3 the utility model embodiments provide a personal protection device in forest fire, including storage box 1, oxygen cylinder 2, isolated oxygen supply part 3 and connected protective clothing 4.
[0081] In use, the connected protective clothing 4 can be taken out and worn to provide protection for the user, the mouth utensil 31 is taken out, and the switch valve 23 of the oxygen cylinder 2 is opened to supply oxygen, which is simple and convenient to use. The oxygen cylinder 2 of the personal protection device is wrapped with the fiber wrapping part 22 to wrap the inner container 21, which increases the gas bearing capacity of the inner container 21, thereby reducing the thickness of the inner container 21 and the self weight of the oxygen cylinder 2, while ensuring the gas storage capacity, and also having the characteristics of corrosion resistance and light weight, thereby reducing the overall weight of the personal protection device in forest fire and realizing the light weight of the equipment.
[0082] In order to optimize the space of the box 12 and avoid the mutual influence of the various parts in the box when taking and placing, in one example, see Figure 1 and Figure 2 As shown, the housing 12 includes a storage chamber 121 and a receiving chamber 122. The openings of the storage chamber 121 and the receiving chamber 122 are located on different sides of the housing 12, for example, on two mutually perpendicular sides of the housing 12. The oxygen cylinder 2 and the isolated oxygen supply unit 3 are both placed in the storage chamber 121. The cover 11 is used to seal the storage chamber 121. The one-piece protective suit 4 is placed in the receiving chamber 122. The opening of the receiving chamber 122 is provided with a first push-type opening and closing door 123.
[0083] In this embodiment, preferably, the oxygen cylinder 2 is fixedly installed in the storage chamber 121 .
[0084] In this embodiment, preferably, see Figure 1 and Figure 2 As shown, the box body 12 further includes an emergency material chamber 124, and a push-type second opening and closing door 125 is provided at the opening of the emergency material chamber 124. The emergency material chamber 124 is mainly used to store some first aid medicines or food.
[0085] In a specific example, the first push-type opening and closing door 123 and the second push-type opening and closing door 125 can both be opened and closed by a rebounder. It should be noted that the rebounder is an existing structure and will not be described in detail here.
[0086] In one example, an early warning system 5 is provided in the storage chamber 122. The early warning system 5 includes a light sensor, a data transmission module, a processor, a data transmission module, and an alarm module. The light sensor is signal-connected to the data transmission module, the data transmission module is signal-connected to the processor, the data transmission module and the alarm module are respectively signal-connected to the processor, and the data transmission module is also signal-connected to the control center. The housing 12 is also provided with a battery slot (not shown in the figure) for installing batteries that power the early warning system 5. When the one-piece protective suit 4 is placed in the storage chamber 122, it covers the light sensor. When the one-piece protective suit 4 is taken out, the light sensor detects a change in light and transmits data to the processor via the data transmission module. The data is then sent to the control center via the data transmission module. After receiving the information, the control center notifies other personnel to use personal protective equipment or move to a safe haven. Alternatively, after receiving information about a change in wind direction, the control center can also proactively notify all firefighters to use personal protective equipment or move to a safe haven through the early warning system 5. Specifically, after receiving the notification from the control center, the processor alerts the firefighters via the alarm module, which is preferably a sound-emitting device. In this way, firefighters can be notified at the first time, which can reduce damage and increase the chance of survival.
[0087] It should be noted that the light sensor, the data transmission module, the processor, the data sending module and the alarm module can adopt the prior art, and will not be described here.
[0088] In this embodiment, the exhaust pipe 33 can exhaust the exhaled gas to the air. In an example, referring to FIG. 5, the exhaust pipe 33 is connected to the mouthpiece 31 at one end and connected to the exhalation treatment tank 36 at the other end. The exhalation treatment tank 36 is connected to the air bag 32 through a connecting pipe (not shown in the figure) provided with a one-way valve. The exhaled gas is absorbed and purified by the exhalation treatment tank 36, then enters the air bag 32 through the connecting pipe, and participates in the breathing cycle again, thereby reducing the oxygen consumption. It should be noted that the exhalation treatment tank 36 is the prior art, and will not be described here. Figure 2
[0089] In an example, referring to FIG. 6, the valve body of the on-off valve 23 is provided with a pressure regulating rod 231. By rotating the pressure regulating rod 231, two different flow rates of oxygen supply can be achieved. The specific structure can adopt the prior art, for example, the oxygen supply channel 24 has two channels with different diameters. By rotating the pressure regulating rod 231, one of the channels can be selected to pass oxygen, thereby achieving two different flow rates of oxygen supply.
[0090] In an example, referring to FIG. 7, the air bag 32 is provided with a gas supplementing pressure plate 34. Pressing the gas supplementing pressure plate 34 can accelerate the oxygen charging to the mouthpiece 31 and reduce the time of oxygen from the air bag 32 to the mouthpiece 31. It should be noted that the gas supplementing pressure plate 34 is the prior art, and will not be described here. Figure 2 In order to improve safety, in an example, the air bag 32 is provided with a first pressure relief valve 35. When the set pressure is reached, the first pressure relief valve 35 will automatically release pressure to ensure the safety of the air bag 32.
[0091] In this embodiment, the oxygen supply channel 24 is connected with a pressure gauge 25 to display the real-time pressure.
[0092] In order to make the mechanical properties of the entire carbon fiber layer more uniform in all directions and increase the service life of the material, in some examples, referring to FIG. 8, the fiber wrapping part 22 includes a carbon fiber layer. The carbon fiber layer includes a first carbon fiber layer 221 and a second carbon fiber layer 222. The first carbon fiber layer 221 and the second carbon fiber layer 222 are arranged alternately along the thickness direction of the liner 21. The fiber direction of the first carbon fiber layer 221 and the fiber direction of the second carbon fiber layer 222 are different. Preferably, the fiber direction of the first carbon fiber layer 221 and the fiber direction of the second carbon fiber layer 222 are 90°.
[0093] Figure 5
[0094] In one specific example, the inner container 21 is made of aluminum alloy or other commonly used alloy materials, the thickness of the inner container 21 can be 7mm, the thickness of the first carbon fiber layer 221 and the second carbon fiber layer 222 are each three layers, and the fiber directions of the two are 90°. The thickness of the first carbon fiber layer 221 and the thickness of the second carbon fiber layer 222 can each be 0.14mm, and the overall thickness of the fiber layer can be 6x0.14mm.
[0095] Forest fire "deflagration" is one of the most dangerous disasters in forest fires. Influenced by the combination of topography, combustible materials and meteorological conditions, deflagration is mainly powered by combustion, accompanied by shock waves, and the specific forms are usually convection columns, flying fires, plume fires, high-temperature heat waves, fire whirls, etc. The disaster is prone to cause large-scale fixed-point and rapid and unstable forest fire spread, which seriously threatens the personal safety of trapped personnel. In order to make the connected protective clothing 4 have a certain impact resistance, in an example, the protective clothing body 41 includes, from inside to outside, a flame-retardant gauze 411, a phase change absorption material layer 412, a glass fiber heat insulation layer 413, an aramid fiber explosion-proof layer 414 and a quartz fiber heat insulation layer 415. The connected protective clothing with this structure has the characteristics of light weight, high strength, strong impact resistance, etc., can provide protection and heat insulation when the personnel encounter deflagration caused by changes in wind direction, ensure the safe escape of the trapped personnel from the forest fire encirclement area, and further reduce the overall weight of the device. In addition, the connected protective clothing 4 is provided with a phase change absorption material layer 412, which has the characteristics of shape stability and good refrigeration effect, achieving the purpose of suitable temperature inside the emergency clothing when the personnel escape from the fire area.
[0096] It should be noted that the flame-retardant gauze 411, the phase change absorption material layer 412, the glass fiber heat insulation layer 413, the aramid fiber explosion-proof layer 414 and the quartz fiber heat insulation layer 415 are all applications of existing materials, and the utility model is not an improvement on the materials.
[0097] In an example, the full-closed mask 42 includes a cap body 421 and an anti-fog lens 422, and the full-closed mask 42 also has a second pressure relief valve 423 to avoid excessive internal pressure and improve safety. Preferably, the protective clothing body 41 has a flame-retardant zipper 43 and an elastic sleeve opening.
[0098] In order to facilitate quick opening of the box body, in an example, the cover body 11 and the box body 12 are connected through a quick lock 13. The quick lock 13 is a existing structure, which will not be described here.
[0099] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: not every example contains only one independent technical solution, there is no solution conflict, the technical features mentioned in each example can be combined in any way to form other embodiments that can be understood by those skilled in the art.
[0100] In addition, the technical solutions described in the foregoing examples are modified, or some of the technical features are replaced equivalently without departing from the scope of the present application, and the essence of the corresponding technical solutions does not deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A personal protection device for forest fires, characterized in that: include: The storage box comprises a cover and a box body, wherein the cover is detachably covered on the box body, and the box body is provided with a shoulder strap; An oxygen cylinder is placed in the box, comprising an inner liner and a fiber-wrapped portion wrapped around the outer side of the inner liner, wherein a switch valve is provided at the gas outlet of the oxygen cylinder, and the fiber-wrapped portion comprises a carbon fiber layer, wherein the carbon fiber layer comprises a first carbon fiber layer and a second carbon fiber layer, wherein the first carbon fiber layer and the second carbon fiber layer are alternately arranged along the thickness direction, and the fiber direction of the first carbon fiber layer and the fiber direction of the second carbon fiber layer are at 90 degrees; An isolated oxygen supply unit is placed in the box and includes a mouthpiece, an air bag, an oxygen supply tube, and an exhaust pipe. The mouthpiece is connected to the air bag via the oxygen supply tube, and the air bag is connected to the oxygen cylinder via the oxygen supply channel. One end of the exhaust pipe is connected to the mouthpiece. Both the oxygen supply tube and the exhaust pipe are provided with a one-way valve. When in use, the mouthpiece can be taken out of the box. The one-piece protective suit is placed in the box and comprises a protective suit body and a fully enclosed mask.
2. The personal protection device for forest fires according to claim 1, characterized in that: The box body includes a storage cavity and a receiving cavity, the openings of the storage cavity and the receiving cavity are located on different sides of the box body, the oxygen cylinder and the isolated oxygen supply part are both placed in the storage cavity, the cover body is used to close the storage cavity, the one-piece protective suit is placed in the receiving cavity, and a first press-type opening and closing door is provided at the opening of the receiving cavity.
3. The personal protection device for forest fires according to claim 2, characterized in that: The box body also includes an emergency material room, and a second push-type opening and closing door is provided at the opening of the emergency material room.
4. The personal protection device for forest fires according to claim 2, characterized in that: The storage cavity is also provided with an early warning system, which includes a light sensor, a data transmission module, a processor, a data sending module and an alarm module. The light sensor is connected to the data transmission module by signal, the data transmission module is connected to the processor by signal, the data sending module and the alarm module are respectively connected to the processor by signal, and the data sending module is also connected to the control center by signal; The box body is also provided with a battery slot, which is used to install a battery for powering the early warning system; When the one-piece protective suit is placed in the storage cavity, it covers the light sensor.
5. The personal protection device for forest fires according to claim 1, characterized in that: The isolated oxygen supply unit further includes an exhalation treatment tank. The other end of the exhaust pipe is connected to the exhalation treatment tank. The exhalation treatment tank is connected to the air bag through a connecting pipe. A one-way valve is provided on the connecting pipe.
6. The personal protection device for forest fires according to claim 1, characterized in that: The airbag is provided with an air pressure plate; and / or The airbag is provided with a first pressure relief valve.
7. The personal protection device for forest fires according to claim 1, characterized in that: The protective clothing body comprises, from the inside to the outside, a flame-retardant gauze, a phase-change absorption material layer, a glass fiber heat-insulating layer, an aramid fiber explosion-proof layer and a quartz fiber heat-insulating layer.
8. The personal protection device for forest fires according to claim 1, characterized in that: The fully enclosed mask includes a cap body and an anti-fog lens, and is further provided with a second pressure relief valve; The protective clothing body is provided with a flame-retardant zipper and elastic cuffs.
9. The personal protection device for forest fires according to claim 1, characterized in that: The cover body and the box body are connected by a quick lock.