High temperature resistant forest fire shelter

Abstract

The utility model discloses a kind of high-temperature-resistant forest fire shelters, it is related to fire-fighting device technical field;Including outer cover, inner cover, connecting rod frame;Inner cover covers and is connected on connecting rod frame, and inner cover and connecting rod frame form cover structure;Outer cover covers in the outer portion of inner cover, and interlayer is formed between outer cover and inner cover, and the width of the narrowest part of interlayer is greater than or equal to 4cm;Inner cover bottom is provided with openable entrance, and inner cover is closed after entrance, and it is closed state;Outer cover bottom is open and fixed with ground;Outer cover includes carbon fiber heat insulation layer, and inner cover includes aluminum foil layer;The utility model solves the problem that the heat insulation effect of fire shelter is not ideal, and can be quickly opened, and it is convenient for firefighter to wear quickly;It is suitable for forest fire scene.

Description

Technical Field

[0001] This utility model relates to the field of fire protection device technology, specifically a high-temperature resistant forest fire shield, suitable for individual protection scenarios in forest fire fighting. Background Technology

[0002] Forest firefighters may encounter various extreme and dangerous fire situations during firefighting operations. For example, they may be in environments with extreme fires such as explosive fires or swirling fires. Firefighters' reaction time is generally 8 to 15 seconds. These extreme fires develop rapidly and violently, which can cause forest firefighters to be trapped in the fire and unable to escape, resulting in injury or even death.

[0003] In the event of such severe and extreme fires, forest firefighters usually take shelter in fire-resistant covers they carry with them. However, traditional forest fire-resistant covers have many inconveniences in use. First, they are limited by terrain and can only be used on flat ground. Second, they are heavy and have poor heat insulation, providing protection for no more than 20 seconds when in direct contact with 800°C flames. Third, the time from clearing the site to putting on the covers is too long, generally more than 30 seconds. Utility Model Content

[0004] This invention overcomes the shortcomings of existing technologies and proposes a high-temperature resistant forest fire shield, solving the technical problem of unsatisfactory heat insulation effect of fire shields.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A high-temperature resistant forest fire shelter includes an outer cover, an inner cover, and a connecting frame. The inner cover covers and is connected to the connecting frame, forming a cover structure. The outer cover covers the outside of the inner cover, and a sandwich is formed between the outer and inner covers, with the narrowest part of the sandwich being ≥3cm. The bottom of the inner cover has an openable entrance, which closes when the entrance is closed. The bottom of the outer cover is open and in contact with the ground. The outer cover includes a carbon fiber insulation layer, and the inner cover includes an aluminum foil layer. The outer cover is made of a thin, flame-retardant, and heat-insulating material that can withstand point-to-point burning at 1300℃ for 5 minutes without being burned through. The inner cover is made of a thin, lightweight aluminum foil composite material, with the outer layer being aluminum foil and the inner layer being heat-insulating fabric.

[0006] Furthermore, a fabric layer is laminated to the inside of the aluminum foil layer.

[0007] Furthermore, the outer cover material is carbon fiber flame-retardant heat-insulating cloth or other flame-retardant and high-temperature resistant fabrics with a temperature of over 1000℃.

[0008] Furthermore, the linkage frame includes multiple linkage support frames and multiple linkage connecting frames; the multiple linkage support frames and multiple linkage connecting frames are connected one-to-one, and the inner cover is integrally connected to the multiple linkage support frames.

[0009] Furthermore, it also includes a quick-opening structure, to which the linkage frame is connected, and the linkage frame is unfolded through the quick-opening structure.

[0010] Furthermore, the quick-opening structure includes an upper connecting plate, a lower connecting plate, a spring, a pull rope, and a connecting seat; the top of the linkage support frame is hinged to the upper connecting plate, the lower connecting plate is located directly below the upper connecting plate, one end of the linkage connecting frame is hinged to the lower connecting plate, and the other end of the linkage connecting frame is hinged to the corresponding linkage support frame; a connecting seat is connected below the lower connecting plate, one end of the spring is connected to the upper connecting plate, the other end of the spring passes through the lower connecting plate and connects to the connecting seat, one end of the pull rope is connected to the lower connecting plate, and the other end of the pull rope passes through the upper connecting plate and extends to the outside.

[0011] Furthermore, a sleeve is provided at the bottom of the upper connecting plate, and a compressible protrusion is provided on the outer wall of the sleeve. A limiting groove is provided on the outer wall of the connecting seat, and the connecting seat is positioned when the protrusion and the limiting groove are engaged.

[0012] Furthermore, the connecting rod frame is made of carbon fiber, and the hinge components are made of flame-retardant materials.

[0013] Furthermore, a zipper is installed at the bottom entrance of the inner cover.

[0014] The beneficial effects of this utility model compared to the prior art are as follows: 1. The fireproof cover of this utility model adopts a double-layer structure. The inner layer forms a closed structure that can effectively block external heat and efficiently retard flames. The outer layer is in contact with the ground. When the external temperature of the outer layer rises suddenly, the air in the interlayer between the outer and inner layers expands due to heat and will be discharged from the bottom of the interlayer to the outside. The air between the interlayers is thin, further enhancing the heat insulation capacity. Combined with the double-layer heat-insulating cover, when the outer cover is burned by a 1200°C flame, the temperature of the inner surface of the inner cover does not exceed 60°C within 1 minute. It can provide protection for more than 1 minute in a high-temperature environment of direct contact with a 1000°C flame.

[0015] 2. The fireproof cover described in this utility model adopts a quick-opening structure. It is automatically opened by the spring force when taken out of the backpack, and the time from opening to wearing does not exceed 15 seconds.

[0016] 3. The fireproof cover described in this utility model adopts a bottom entry method, with the opening located at the bottom of the inner cover. After the fireproof cover is opened, the firefighter can squat down and lift it up to quickly put it on. After entering, the zipper is pulled to close it, which is convenient for firefighters to put on quickly.

[0017] 4. This fire shield is also suitable for different fire environments. With the addition of an air supply system, the inner space of the fire shield forms a positive pressure, which can be used for personnel refuge during fires in high-rise buildings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the high-temperature resistant forest fire shield described in this utility model; Figure 2 This is a diagram of the frame structure of the high-temperature resistant forest fire shield described in this utility model; Figure 3 This is a schematic diagram of the linkage frame described in this utility model; Figure 4 This is a cross-sectional view of the arrangement structure of the outer and inner covers in this utility model; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 This is a cross-sectional view of the arrangement structure of the outer and inner covers in the comparative example; In the diagram, 1 is the outer cover, 2 is the inner cover, 3 is the connecting rod frame, 4 is the quick-opening structure, 5 is the carbon fiber insulation layer, 6 is the aluminum foil layer, 7 is the fabric layer, 31 is the connecting rod support frame, 32 is the connecting rod connecting frame, 41 is the upper connecting plate, 42 is the lower connecting plate, 43 is the spring, 44 is the pull rope, 45 is the connecting seat, and 46 is the sleeve. Detailed Implementation

[0019] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto. Example 1

[0020] See Figure 1 and Figure 5 This embodiment proposes a high-temperature resistant forest fire shelter, comprising an outer cover 1, an inner cover 2, a connecting frame 3, and a quick-opening structure 4. The connecting frame 3 is connected to the quick-opening structure 4, allowing the connecting frame 3 to be quickly deployed. The inner cover 2 is connected to the connecting frame 3. The top of the outer cover 1 is fixed to the quick-opening structure 4, and the bottom of the outer cover 1 is fixed to the ground with ground stakes. The bottom of the inner cover 2 is closed and has an entrance with a zipper. After the fire shelter is deployed via the quick-opening structure 4, firefighters crawl into the outer cover 1 from the bottom, secure the bottom of the outer cover 1, then crawl into the inner cover 2 from the bottom and close the zipper to seal themselves inside the inner cover 2.

[0021] Specifically, the quick-opening structure 4 and the connecting frame 3 are existing structures, commonly used in the quick-deployment structure of umbrellas. The fireproof cover structure of this utility model utilizes the quick-deployment structure of an umbrella to achieve the quick opening of the fireproof cover. This embodiment provides an implementation method where the quick-opening structure 4 includes an upper connecting plate 41, a lower connecting plate 42, a spring 43, a pull rope 44, and a connecting seat 45. The linkage frame 3 includes four linkage support frames 31 and four linkage connecting frames 32. The linkage support frame 31 is composed of multiple thin rod-shaped support rods that are sequentially hinged together. The tops of the four linkage support frames 31 are uniformly hinged to the upper connecting plate 41. The lower connecting plate 42 is located directly below the upper connecting plate 41. One end of the four linkage connecting frames 32 is uniformly hinged to the lower connecting plate 42, and the other end of the four linkage connecting frames 32 is respectively hinged to the corresponding linkage support frame 31. A connecting seat 45 is connected below the lower connecting plate 42. One end of the spring 43 is connected to the upper connecting plate 41, and the other end of the spring 43 passes through the lower connecting plate 42 and connects to the connecting seat 45. One end of the pull rope 44 is connected to the lower connecting plate 42, and the other end of the pull rope 44 passes through the upper connecting plate 41 and extends to the outside. A sleeve 46 is provided at the bottom of the upper connecting plate 41. A compressible protrusion is provided on the outer wall of the sleeve 46. A limiting groove is provided on the outer wall of the connecting seat 45. When the pull rope 44 pulls the connecting seat 45 and the lower connecting plate 42, the connecting seat 45 and the lower connecting plate 42 compress the spring 43 and squeeze the protrusion. When they move to the limiting groove and are opposite to the protrusion, the protrusion pops out and locks into the limiting groove. At this time, the connecting rod frame 3 is retracted, and the fireproof cover can be put into the firefighter's backpack. When it needs to be unfolded, the pull rope 44 is pulled to make the protrusion disengage from the limiting groove. At this time, under the elastic force of the spring 43, the lower connecting plate 42 and the connecting seat 45 are popped open, and the connecting rod frame 3 is unfolded at the same time.

[0022] As a preferred structure, all connecting rods and hardware materials in the quick-opening structure 4 and the connecting rod frame 3 are made of lightweight and rigid carbon fiber and coated with a lightweight flame-retardant layer, such as a non-intumescent fire-retardant coating. This coating primarily uses inorganic fillers (talc powder, mica powder) and binders (silicates) to improve thermal stability and achieve fire resistance. All of these materials are readily available. This design achieves both overall lightweighting and fire resistance of the fire shield.

[0023] The inner cover 2 is connected to the four connecting rod support frame 31. It can retract and expand accordingly with the retraction and expansion of the connecting rod support frame 31. The top of the outer cover 1 is fixed to the upper connecting plate 41. The outer cover 1 is located outside the inner cover 2. The bottom of the outer cover 1 is in a free state and is used to connect with the ground nail and fix it to the ground.

[0024] The outer cover 1 is primarily composed of a carbon fiber insulation layer 5, which uses existing materials: carbon fiber flame-retardant insulation cloth or other fabrics capable of providing flame retardant and heat insulation performance above 1000℃ in open flame. The inner cover 2 uses aluminum foil composite material; that is, the inner cover 2 comprises an inner and outer composite fabric layer 7 and an aluminum foil layer 6. The fabric layer 7 can be made of lightweight polyester, nylon, or polyester taffeta. The materials of the carbon fiber insulation layer 5, fabric layer 7, and aluminum foil layer 6 are all existing technologies. The total weight of the inner cover 2 and outer cover 1 combined is no more than 0.5 kg / m². 2 .

[0025] When the fireproof cover is deployed, an interlayer can be formed between the inner cover 2 and the outer cover 1. The narrowest part of the interlayer between the inner cover 2 and the outer cover 1 is not less than 4cm. When the external temperature of the outer cover 1 rises suddenly, the air in the interlayer between the outer and inner layers expands due to heat and will be discharged from the bottom of the interlayer to the outside. The air between the layers is thin, which further enhances the heat insulation capacity. With the double-layer heat-insulating cover, experiments have verified that when the outer cover 1 is burned by a flame at 1200℃, the inner surface temperature of the inner cover 2 does not exceed 60℃ within 1 minute. It can provide protection for more than 1 minute in a high-temperature environment of direct contact with a flame at 1000℃.

[0026] The fire shield described in this embodiment is also suitable for use in other fire-prone environments, such as for the safety of people in high-rise buildings.

[0027] Comparative Example 1 See Figure 6 The inner cover 2 and the outer cover 1 are bonded together without any interlayer. The other structures are the same as in Example 1. Experiments have verified that when the outer cover 1 is burned by a flame at 1200°C, the inner surface temperature of the inner cover 2 reaches 60°C within 15 seconds.

[0028] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. It should not be considered that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered to fall within the scope of patent protection determined by the submitted claims.

Claims

1. A high-temperature resistant forest fire shield, characterized in that, It includes an outer cover (1), an inner cover (2), and a connecting frame (3); the inner cover (2) covers and is connected to the connecting frame (3), and the inner cover (2) and the connecting frame (3) form a cover structure; the outer cover (1) covers the outside of the inner cover (2), and a sandwich is formed between the outer cover (1) and the inner cover (2), with the narrowest width of the sandwich being ≥3cm; the bottom of the inner cover (2) is provided with an openable entrance, and the inner cover (2) is closed when the entrance is closed; the bottom of the outer cover (1) is open and in contact with the ground; the outer cover (1) includes a carbon fiber heat insulation layer (5), and the inner cover (2) includes an aluminum foil layer (6).

2. The high-temperature resistant forest fire shield according to claim 1, characterized in that, The aluminum foil layer (6) is laminated with a fabric layer (7) on the inside.

3. The high-temperature resistant forest fire shield according to claim 1, characterized in that, The linkage frame (3) includes multiple linkage support frames (31) and multiple linkage connecting frames (32); the multiple linkage support frames (31) and multiple linkage connecting frames (32) are connected one-to-one, and the inner cover (2) is connected as a whole to the multiple linkage support frames (31).

4. A high-temperature resistant forest fire shield according to claim 3, characterized in that, It also includes a quick-opening structure (4), the link frame (3) is connected to the quick-opening structure (4), and the link frame (3) is unfolded through the quick-opening structure (4).

5. A high-temperature resistant forest fire shield according to claim 4, characterized in that, The quick-opening structure (4) includes an upper connecting plate (41), a lower connecting plate (42), a spring (43), a pull rope (44), and a connecting seat (45); the top of the connecting rod support frame (31) is hinged to the upper connecting plate (41), the lower connecting plate (42) is located directly below the upper connecting plate (41), one end of the connecting rod connecting frame (32) is hinged to the lower connecting plate (42), and the other end of the connecting rod connecting frame (32) is hinged to the corresponding connecting rod support frame (31); a connecting seat (45) is connected below the lower connecting plate (42), one end of the spring (43) is connected to the upper connecting plate (41), and the other end of the spring (43) passes through the lower connecting plate (42) and is connected to the connecting seat (45); one end of the pull rope (44) is connected to the lower connecting plate (42), and the other end of the pull rope (44) passes through the upper connecting plate (41) and extends to the outside.

6. A high-temperature resistant forest fire shield according to claim 5, characterized in that, The upper connecting plate (41) has a sleeve (46) at the bottom. The outer wall of the sleeve (46) has a compressible protrusion. The outer wall of the connecting seat (45) has a limiting groove. When the protrusion and the limiting groove are engaged, the connecting seat (45) is positioned.

7. A high-temperature resistant forest fire cover according to claim 6, characterized in that, Both the quick-opening structure (4) and the linkage frame (3) are made of carbon fiber.

8. A high-temperature resistant forest fire cover according to claim 6, characterized in that, The top of the outer cover (1) is fixed to the upper connecting plate (41).

9. A high-temperature resistant forest fire cover according to claim 1, characterized in that, The inner cover (2) has a zipper at the bottom entrance.

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