Firefighter lifesaving automatic protection equipment

Abstract

The invention relates to the technical field of fire-fighting self-rescue equipment, and discloses firefighter lifesaving automatic protection equipment which comprises four protection mechanisms, a traction mechanism and a communicating pipe, each protection mechanism comprises two outer sheaths, movable plates are arranged on the inner sides of the outer sheaths, a plurality of balls are arranged on the outer sides of the movable plates, and the balls are arranged on the outer sides of the movable plates. An inner sheath is fixedly connected to the inner side of the outer sheath, an air bag is arranged on the side, close to the movable plate, of the inner sheath, an air inlet pipe is fixedly connected to an air inlet in the outer side of the air bag, and one end of the air inlet pipe is fixedly connected with one end of a communicating pipe. Through a dynamic response mechanism of linkage of a pressure sensor and an air bag, a physical buffer layer can be quickly established when the limbs of a fireman are trapped, uniformly distributed jacking force is formed, a heavy object is slightly lifted to release the trapped space, and in combination with the design of low-friction balls on the surface of a movable plate, the mechanical resistance when the limbs are pulled away can be effectively reduced; therefore, the firefighter can get out of the trap by himself / herself under the condition that external rescue is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of fire-fighting self-rescue equipment, in particular to an automatic life-saving protection equipment for firefighters. Background Art

[0002] In today's complex and dangerous fire rescue environment, firefighters face many unpredictable risks, and their life safety is always under severe challenges. Existing firefighter life-saving protection equipment mainly focuses on fire protection, such as fireproof clothing, helmets, etc. These equipment can resist high temperature and flames to a certain extent, providing basic safety protection for firefighters. However, in the actual rescue process, firefighters may encounter various emergencies, among which falling objects often crush their limbs. When such situations occur, existing protection equipment is difficult to provide effective response measures, and firefighters are often in extremely dangerous situations.

[0003] At present, the self-rescue technology that firefighters rely on when performing tasks is relatively limited. Common descenders are mainly suitable for scenarios where firefighters need to descend safely from heights. For example, when firefighters are trapped in high buildings and the staircase passage is blocked, they can use descenders to slowly descend from windows and other locations to a safe area. However, when firefighters are performing rescue operations indoors and are unfortunately pressed down by loose walls, collapsed walls, beams and other falling objects inside the building due to fire, the descender will not work. At this time, firefighters can usually only rely on their companions for help. However, at the fire scene, the environment is complex and dangerous, with smoke and fierce fire. It may be difficult for rescue companions to quickly find the location of the trapped firefighters, and they will also face many obstacles in the process of going to rescue, resulting in a significant delay in the rescue time. Therefore, the present invention provides a firefighter life-saving automatic protection device to solve the shortcomings of the prior art. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automatic life-saving protection device for firefighters, which solves the problem that the firefighter life-saving protection device in the prior art is pressed by falling objects and is difficult to perform self-rescue when firefighters are performing fire rescue work.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic life-saving protection device for firefighters, comprising four protection mechanisms, a traction mechanism and a connecting pipe, the protection mechanism comprising two outer sheaths, a movable plate is arranged on the inner side of the outer sheath, a plurality of balls are arranged on the outer side of the movable plate, an inner sheath is fixedly connected to the inner side of the outer sheath, an airbag is arranged on the adjacent sides of the inner sheath and the movable plate, an intake pipe is fixedly connected to the outer air inlet of the airbag, one end of the intake pipe is fixedly connected to one end of the connecting pipe, a one-way valve is arranged on the other end of the intake pipe, a pressure sensor is arranged on the outer side of the movable plate, a controller and an electronic air valve are arranged at the connection between the connecting pipe and the intake pipe, and are electrically connected to the pressure sensor.

[0006] Preferably, two positioning blocks are fixedly connected to the outer side of the movable plate, one side of the positioning block is in contact with the inner side of the outer sheath, and a plurality of tension spring telescopic rods are arranged on the outer side of the movable plate, one end of the tension spring telescopic rod is fixedly connected to the inner side of the outer sheath.

[0007] Preferably, a protective pad is provided on the inner side of the inner sheath, two rope holes are provided on the outer side of the outer sheath, and a fire-resistant rope is provided on the inner side of the rope holes.

[0008] Preferably, four limiting blocks are fixedly connected to the outer side of one of the outer sheaths, and four limiting grooves are formed on the outer side of the other outer sheath, and the outer sides of the limiting blocks are engaged with the inner sides of the corresponding limiting grooves.

[0009] Preferably, the traction mechanism includes a fire-resistant belt and an anchoring assembly, buckles are provided at proximal ends of the fire-resistant belt, an explosion-proof battery is provided on the outside of the fire-resistant belt, and one end of the fire-resistant belt is fixedly connected to a protective shell.

[0010] Preferably, a motor is installed inside the protective shell, the output end of the motor is fixedly connected to a winding rod, one end of the winding rod is rotatably connected to one end of the fire-resistant belt, and the outer side of the winding rod is fixedly connected to a connecting belt.

[0011] Preferably, the anchoring assembly includes a socket and a combination socket, the outer side of the socket is fixedly connected to the other end of the connecting belt, the outer sides of the socket and the combination socket are rotatably connected to slots, and the inner sides of the two slots are rotatably connected to multi-section rotating plates.

[0012] Preferably, a slot is provided inside the card seat, an insertion block is fixedly connected to one side of the combination seat, the outer side of the insertion block is slidably connected to the inner side of the slot, two fixed seats are fixedly connected to the outer side of the card seat, a sliding rod is slidably connected to the inside of the fixed seat, two slots are provided on the inner wall of the slot, a spring is provided in the internal cavity of the insertion block, both ends of the spring are fixedly connected to inclined plane blocks, the outer side of the inclined plane block is engaged in the inner side of the slot, and one end of the sliding rod is in contact with the outer side of the inclined plane block.

[0013] The present invention provides a firefighter life-saving automatic protection device, which has the following beneficial effects: 1. The present invention uses a dynamic response mechanism that links pressure sensors with airbags to quickly establish a physical buffer layer when firefighters' limbs are trapped. When falling objects generate pressure signals, the system can open the air valve and inflate the airbags within milliseconds, forming a uniformly distributed lifting force, which slightly lifts the heavy objects to release the trapped space. Combined with the low-friction ball design on the surface of the movable plate, it can effectively reduce the mechanical resistance when the limbs are pulled out, allowing firefighters to escape autonomously without external rescue.

[0014] 2. The anchoring assembly of the present invention adopts a spring-clip quick installation structure, which can quickly and reliably fix columnar objects and provide a stable fulcrum for subsequent rescue. The winding system is equipped with a dual-mode drive device, which can automatically trigger the motor to wind up through a pressure sensor and can also perform emergency operations through a manual button, thereby enhancing the applicability in complex scenarios. The connecting belt made of high-strength fire-resistant material and the winding rod form a rigid transmission structure, which can continuously provide pulling force in a high-temperature environment and assist firefighters in breaking through heavy obstacles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 It is a structural schematic diagram of the protection mechanism of the present invention; Figure 3 It is a schematic structural diagram of the protective pad of the present invention; Figure 4 It is a structural schematic diagram of a multi-section rotating plate of the present invention; Figure 5 It is a schematic diagram of the internal structure of the card holder of the present invention.

[0016] Among them, 1. outer sheath; 2. movable plate; 3. ball bearing; 4. positioning block; 5. tension spring telescopic rod; 6. inner sheath; 7. airbag; 8. connecting pipe; 9. air intake pipe; 10. pressure sensor; 11. protective pad; 12. limit block; 13. limit groove; 14. rope hole; 15. fire-resistant rope; 16. fire-resistant belt; 17. buckle; 18. explosion-proof battery; 19. protective shell; 20. winding rod; 21. connecting belt; 22. card seat; 23. combination seat; 24. slot; 25. multi-section rotating plate; 26. fixed seat; 27. sliding rod; 28. plug-in block; 29. ​​inclined block; 30. spring; 31. card slot. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Please see attached Figure 1 -Attached Figure 5The embodiment of the present invention provides an automatic life-saving protection device for firefighters, including four protection mechanisms, a traction mechanism and a connecting pipe 8. The structural materials of the device are all fireproof. The protection mechanism includes two outer sheaths 1. In the protection mechanism, the two outer sheaths 1 are symmetrically distributed to provide external frame support for the entire protection mechanism. The movable plate 2 can move flexibly inside the outer sheath 1. A plurality of balls 3 are evenly distributed on the outside of the movable plate 2. The function of the movable plate 2 is to greatly reduce the friction between the movable plate 2 and the outer sheath 1, so that the movable plate 2 can move more smoothly in the subsequent work process. The inner sheath 6 is fixed on the inner side of the outer sheath 1 and arranged opposite to the movable plate 2. The airbag 7 arranged between the two is distributed in a long strip shape and can evenly apply force after inflation. One end of the air inlet pipe 9 is tightly and fixedly connected to the air inlet on the outside of the airbag 7. The material has good pressure resistance and temperature resistance, ensuring stable operation under high temperature and high pressure environment of the fire scene. The one-way valve is installed at the other end of the air inlet pipe 9. The function of the one-way valve is to ensure that the gas can only flow into the airbag 7 in one direction to prevent gas backflow. The pressure sensor 10 is evenly distributed on the outside of the movable plate 2, which can accurately sense the pressure changes from the outside and convert the pressure signal into an electrical signal in time. There are two positioning blocks 4, which are symmetrically fixed on the outside of the movable plate 2. Their shape is adapted to the inner contour of the outer sheath 1, and they play the role of positioning and assisting in stabilizing the movable plate 2 when they are fitted. Multiple tension spring telescopic rods 5 are evenly distributed between the movable plate 2 and the outer sheath 1, and a certain tensile force is maintained under normal conditions. When the movable plate 2 is moved by external force, the tension spring telescopic rod 5 can provide a reverse reset tension. The pad 11 is made of soft, fireproof and heat-insulating material, and is firmly attached to the inside of the inner sheath 6 through the back adhesive, which is convenient for replacement according to the thickness of the limbs of different firefighters. The rope hole 14 is opened on the outside of the outer sheath 1 near the two ends, and the fire-resistant rope 15 passes through the rope hole 14 to fix the protective mechanism tightly on the firefighter's limbs. The fire-resistant rope 15 has high strength and good fire resistance to ensure that it will not break easily in a fire environment. The limit blocks 12 are rectangular blocks, and there are four of them, which are evenly fixed on the outside of one of the outer sheaths 1. Four limit grooves 13 are correspondingly opened on the outside of the other outer sheath 1. The shapes and sizes of the limit blocks 12 and the limit grooves 13 match each other, and when engaged, they can ensure that the two outer sheaths 1 are accurately docked.

[0019] In the traction mechanism, the fire-resistant belt 16 is wrapped around the firefighter's waist. Its material has fire-proof, wear-resistant and high-strength characteristics, ensuring reliability in complex fire environments. The buckle 17 is installed near the two ends of the fire-resistant belt 16, which is convenient for firefighters to quickly put on and unfasten it. The explosion-proof battery 18 is fixed on the outside of the fire-resistant belt 16 to provide a stable power supply for the motor of the entire traction mechanism. It has explosion-proof performance and can work safely in dangerous environments. The protective shell 19 is made of fire-proof and explosion-proof materials and is fixed at one end of the fire-resistant belt 16. The internal space is reasonably designed for installing the motor. The motor is a special high-temperature resistant, high-torque motor, and its output end is fixedly connected to one end of the winding rod 20, which can stably drive the winding rod 20 to rotate. The other end of the winding rod 20 is rotatably connected to the fire-resistant belt 16 to ensure stability during the winding process. The connecting belt 21 is tightly wrapped around the outside of the winding rod 20. Its material is similar to that of the fire-resistant belt 16, and has high strength and fire resistance.

[0020] In the anchor assembly, the holder 22 is fixed to the other end of the connecting belt 21, and its shape is designed to be easily put on columnar objects such as table legs and window guardrails. The combination seat 23 is used in conjunction with the holder 22, and both are rotatably connected to the outside with a slot 24. The rotational connection mode of the slot 24 enables the multi-section rotating plate 25 to flexibly adjust the angle to adapt to columnar objects of different shapes and sizes. The multi-section rotating plate 25 is composed of a plurality of plates that are rotatably connected to each other, and can be bent and adjusted according to actual conditions during installation. The slot 24 opened inside the holder 22 is precisely matched in size with the plug block 28 fixed on one side of the combination seat 23, and the plug block 28 can slide smoothly in the slot 24. There are two fixed seats 26, which are symmetrically fixed on the outside of the holder 22, and the slide groove opened inside is adapted to the size of the slide rod 27, and the slide rod 27 can slide flexibly therein. The positions of the two slots 31 provided on the inner wall of the slot 24 correspond to the positions of the inclined surface block 29 in the inner cavity of the insert block 28. When the insert block 28 is inserted into the slot 24, the inclined surface block 29 can be accurately inserted into the slot 31 under the elastic force of the spring 30. The spring 30 is placed in the central position of the inner cavity of the insert block 28, and the two ends are tightly and fixedly connected to the two inclined surface blocks 29, respectively, to provide an outward elastic force for the inclined surface block 29. The inclined surface block 29 is a trapezoidal structure, and its inclined surface design facilitates the compression of the insert block 28 into the inner cavity of the insert block 28 when the insert block 28 is inserted into the slot 24. When it reaches the position of the slot 31, it pops out and inserts into the slot 31 under the elastic force of the spring 30.

[0021] Specifically, the protective mechanism is mainly used to be worn on the limbs of firefighters to provide them with reliable protection and emergency rescue support. When wearing the protective mechanism, first, the two outer sheaths 1 need to be gently placed on the outside of the firefighter's limbs, and then they are slowly closed. When the limit block 12 is accurately inserted into the limit groove 13, this operation can quickly complete the positioning between the two outer sheaths 1, ensure the accuracy of the wearing position of the protective mechanism, and lay the foundation for the subsequent protective effect. The pad 11 is pasted on the inside of the inner sheath 6. Due to the differences in the thickness of the limbs of different firefighters, pads 11 of different thicknesses can be replaced according to actual conditions. Its adhesive backing design can ensure that the pad 11 is firmly pasted on the inner sheath 6 and will not shift or fall off during use, thereby providing firefighters with a comfortable and fitting protection experience. Next, the fire-resistant rope 15 is passed through the rope hole 14 and tied. The fire-resistant rope 15 has high strength and good fire resistance. After being tied, the protective mechanism can be tightly fixed on the firefighter's limbs to prevent the protective mechanism from loosening or falling off during the rescue operation, providing stable and reliable protection for firefighters in complex and dangerous fire environments. The connecting pipe 8 plays a key role in gas transmission connection. Its four branch pipe openings correspond to the air inlet pipes 9 connected to the four protective mechanisms, and the main pipe of the connecting pipe 8 is closely connected to the breathing cylinder. When the firefighter is in the fire scene and performing intense rescue operations, once he encounters misfortune and his limbs are pressed by falling objects, the pressure sensor 10 distributed on the outside of the movable plate 2 will play an important role. The pressure sensor 10 is extremely sensitive. After being subjected to the pressure of the falling objects, it will quickly convert the pressure signal into an electrical signal in a very short time and immediately transmit it to the corresponding controller at the connecting pipe 8. After receiving the electrical signal, the controller will immediately open the electronic gas valve. At this time, the compressed gas in the breathing cylinder can quickly pass through the corresponding air inlet pipe 9 and efficiently enter the airbag 7. As the compressed gas is continuously charged, the airbag 7 expands rapidly, and then props up the movable plate 2 to a certain height. Since the airbag 7 is distributed in a long strip shape, it can evenly exert force after inflation. This force can slightly lift the falling object, creating a certain activity space for the firefighter's limbs that are pressed down. At the same time, the multiple balls 3 evenly distributed on the outside of the movable plate 2 begin to play a role. The balls 3 greatly reduce the friction between the movable plate 2 and the outer sheath 1, so that the firefighter can move more smoothly when trying to move the pressed limbs, greatly reducing the difficulty of limb movement, and facilitating the firefighter to escape as soon as possible. Before firefighters enter a room with a high risk factor to perform tasks, the installation of the anchor assembly is crucial.First, carefully put the holder 22 of the anchor assembly on the outside of a suitable columnar object such as a table leg or a window guardrail. The shape of the holder 22 is specially designed so that it can be easily and firmly put on these columnar objects. Then, wrap the fire-resistant belt 16 around the waist of the firefighter, and install the buckle 17 near the two ends of the fire-resistant belt 16 to facilitate the firefighter to quickly and firmly put on and unfasten it. Then, accurately insert the plug 28 on one side of the combination seat 23 into the slot 24 provided inside the holder 22. During the insertion of the plug 28, the plug 28 is inserted into the slot 24. The two inclined blocks 29 in the internal cavity of the slot 24 will be squeezed by the inner wall of the slot 24. Since the inclined blocks 29 are trapezoidal in structure, their inclined surface design allows them to smoothly shrink into the internal cavity of the insert block 28 after being squeezed. When the insert block 28 is inserted into the appropriate position, that is, the two card slots 31 opened on the inner wall of the slot 24 correspond to the position of the inclined block 29, the inclined block 29 will pop out quickly and accurately snap into the card slot 31 under the action of the strong elastic force of the spring 30. This process quickly and firmly completes the installation of the anchor assembly. When firefighters perform tasks in the room, if their limbs are unfortunately trapped by pressure, the pressure sensor 10 plays a key role again. The pressure sensor 10 senses the pressure change and generates an electrical signal, which can be quickly transmitted to the controller in the protective shell 19. The controller will start the motor immediately after receiving the signal. The motor can not only be started by this automatic induction method, but also can be manually started and stopped by the button set outside the protective shell 19, providing firefighters with a variety of starting methods and enhancing the flexibility and reliability of equipment use. After the motor is started, its output end will stably drive the winding rod 20 to rotate. The other end of the winding rod 20 is rotatably connected to the fire-resistant belt 16, ensuring stability during the winding process. As the winding rod 20 rotates, the connecting belt 21 tightly wrapped around its outside begins to be gradually wound up. The material of the connecting belt 21 is similar to that of the fire-resistant belt 16, with high strength and fire resistance. During the winding process, it can generate a strong pulling force to assist in pulling firefighters, helping firefighters overcome the obstacles of falling objects and get out of trouble as soon as possible, providing an extra layer of strong protection for the life safety of firefighters.

[0022] Working principle: The protective mechanism is used to be worn on the limbs of firefighters. First, the two outer sheaths 1 are placed on the outside of the firefighter's limbs and closed. At this time, the limit block 12 is inserted into the limit groove 13 to complete the positioning. The pad 11 can be replaced with different thicknesses according to the individual differences of the wearer. The pad 11 is glued to the inner side of the inner sheath 6 with adhesive, and then the fire-resistant rope 15 is tightened to complete the wearing of the protective mechanism. The four branch pipe openings at the connecting pipe 8 are used to connect the air intake pipes 9 of the four protective mechanisms, and the main line of the connecting pipe 8 is connected to the breathing gas cylinder. When the firefighter is performing rescue operations at the fire scene, he is unfortunately pressed by falling objects. The pressure sensor 10 will immediately transmit an electrical signal to the corresponding controller at the connecting pipe 8 to open the electronic gas valve after being pressurized, so that the compressed gas in the gas cylinder quickly enters the air bag 7 through the corresponding air intake pipe 9, supporting the movable plate 2 The fire-resistant belt 16 is put on the waist, and the insert block 28 is inserted into the slot 24. The two inclined blocks 29 can be stuck in the card slot 31 under the elastic force of the spring 30 to complete the installation of the anchor assembly. When the limbs of the firefighter are trapped, the electrical signal of the pressure sensor 10 can be transmitted to the controller in the protective shell 19 to start the motor. The motor can also be manually started and stopped by the button outside the protective shell 19. When the motor is started, the winding rod 20 is driven to rotate, and the connecting belt 21 is wound to assist in pulling the firefighter and help him escape.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic life-saving protection device for firefighters, comprising four protection mechanisms, a traction mechanism and a connecting pipe (8), characterized in that: The protective mechanism comprises two outer protective sleeves (1), a movable plate (2) is arranged on the inner side of the outer protective sleeve (1), a plurality of balls (3) are arranged on the outer side of the movable plate (2), an inner protective sleeve (6) is fixedly connected to the inner side of the outer protective sleeve (1), an air bag (7) is arranged on the adjacent sides of the inner protective sleeve (6) and the movable plate (2), an air inlet pipe (9) is fixedly connected to the air inlet on the outer side of the air bag (7), one end of the air inlet pipe (9) is fixedly connected to one end of a connecting pipe (8), a one-way valve is arranged on the other end of the air inlet pipe (9), a pressure sensor (10) is arranged on the outer side of the movable plate (2), a controller and an electronic valve are arranged at the connection between the connecting pipe (8) and the air inlet pipe (9), and are electrically connected to the pressure sensor (10).

2. The firefighter lifesaving automatic protection device according to claim 1, characterized in that: Two positioning blocks (4) are fixedly connected to the outer side of the movable plate (2), one side of the positioning block (4) is in contact with the inner side of the outer sheath (1), and a plurality of tension spring telescopic rods (5) are arranged on the outer side of the movable plate (2), one end of the tension spring telescopic rod (5) is fixedly connected to the inner side of the outer sheath (1).

3. The firefighter lifesaving automatic protection device according to claim 1, characterized in that: A protective pad (11) is arranged on the inner side of the inner sheath (6), two rope holes (14) are provided on the outer side of the outer sheath (1), and a fire-resistant rope (15) is arranged on the inner side of the rope hole (14).

4. The firefighter lifesaving automatic protection device according to claim 1, characterized in that: Four limiting blocks (12) are fixedly connected to the outer side of one of the outer sheaths (1), and four limiting grooves (13) are provided on the outer side of the other outer sheath (1), and the outer sides of the limiting blocks (12) are engaged with the inner sides of the corresponding limiting grooves (13).

5. The firefighter lifesaving automatic protection device according to claim 1, characterized in that: The traction mechanism comprises a fire-resistant belt (16) and an anchoring assembly, wherein buckles (17) are provided at adjacent ends of the fire-resistant belt (16), an explosion-proof battery (18) is provided on the outside of the fire-resistant belt (16), and a protective shell (19) is fixedly connected to one end of the fire-resistant belt (16).

6. The automatic life-saving protection equipment for firefighters according to claim 5, characterized in that: A motor is installed inside the protective shell (19), and a winding rod (20) is fixedly connected to the output end of the motor. One end of the winding rod (20) is rotatably connected to one end of the fire-resistant belt (16), and a connecting belt (21) is fixedly connected to the outside of the winding rod (20).

7. The automatic life-saving protection equipment for firefighters according to claim 5, characterized in that: The anchor assembly comprises a clamping seat (22) and a combination seat (23); the outer side of the clamping seat (22) is fixedly connected to the other end of the connection belt (21); the outer sides of the clamping seat (22) and the combination seat (23) are both rotatably connected to slots (24); the inner sides of the two slots (24) are rotatably connected to a multi-section rotating plate (25).

8. The firefighter lifesaving automatic protection device according to claim 7, characterized in that: A slot (24) is provided inside the card seat (22); an insert block (28) is fixedly connected to one side of the combination seat (23); the outer side of the insert block (28) is slidably connected to the inner side of the slot (24); the outer side of the card seat (22) is fixedly connected to two fixed seats (26); the inner side of the fixed seat (26) is slidably connected to a slide rod (27); the inner wall of the slot (24) is provided with two slots (31); a spring (30) is provided in the inner cavity of the insert block (28); both ends of the spring (30) are fixedly connected to an inclined surface block (29); the outer side of the inclined surface block (29) is engaged with the inner side of the slot (31); and one end of the slide rod (27) is in contact with the outer side of the inclined surface block (29).

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