Backpack poison decontamination and fire extinguishing device

Abstract

The invention provides a backpack poison decontamination and fire extinguishing device, and belongs to the technical field of fire extinguishing and decontamination devices, the backpack poison decontamination and fire extinguishing device comprises a box body, a barometer and a fire extinguishing assembly, the barometer and the fire extinguishing assembly are arranged on the box body, and a cavity is formed in the box body. According to the device, fire extinguishing liquid and decontamination liquid are stored in the two liquid storage cavities through adding openings correspondingly, appropriate functions can be flexibly selected according to requirements, air and liquid are fully mixed before entering the foaming pipe through arrangement of a turbine, and the subsequent foaming effect is improved; and in the rotating process of the brushes, due to the arrangement of a plurality of fine bristles, force in different directions can be applied to agglomerated bubbles, so that the bubbles are crushed and uniformly dispersed in liquid, the quality and stability of the bubbles are improved, and the arranged brush rotating reversely with the first brush generates stronger cutting on gas and liquid, so that the bubbles are uniformly dispersed in the liquid. Original large bubbles or air masses can be broken into smaller bubbles, and then the quality of follow-up bubbles is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishing and decontamination devices, and more particularly, to a backpack-type poison decontamination and fire extinguishing device. Background Art

[0002] In various fire fighting and emergency rescue operations, the on-site situation is complex and changeable, and often faces various different types of fire scenes, such as building fires, forest fires, vehicle fires, and electrical fires. Moreover, after the treatment of accidents such as fires, it is also necessary to promptly carry out decontamination operations on the contaminated areas, personnel, and equipment.

[0003] In the prior art, common fire fighting equipment has relatively single functions and is not flexible enough to use. Traditional fire extinguishers and poison decontamination equipment often exist separately and are not integrated in the same portable device. At the accident scene, it is necessary to spray the decontamination liquid onto the skin and clothes of the victims through the decontamination device to sterilize the surface of the victims, avoid the toxic air with poisons in the surrounding environment from causing harm to the skin, and it is necessary to replace the fire fighting equipment to extinguish the fire in the subsequent fire fighting, resulting in the need to frequently replace the equipment for personnel decontamination and fire extinguishing during actual emergency rescue, and the operation replacement process of decontamination and fire extinguishing is not flexible enough. How to invent a backpack-type poison decontamination and fire extinguishing device to solve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides a backpack-type poison decontamination and fire extinguishing device, aiming to solve the problem that traditional fire extinguishers and decontamination equipment often exist separately and cannot flexibly adjust the functions according to needs.

[0005] The present invention is implemented as follows: The present invention provides a backpack-type poison decontamination and fire extinguishing device, including a box body, a pressure gauge and a decontamination and extinguishing component arranged on the box body. A cavity is opened inside the box body. A partition is arranged inside the box body to divide the cavity into two liquid storage cavities. The inner wall of the liquid storage cavity is provided with a filling port, and a sealing cover is installed outside the filling port. A gas storage tank is installed on one side of the box body, and two symmetrical installation grooves are opened inside the box body; The pressure gauge is installed on the outer wall of one side of the box body. An air delivery pipe communicating with the gas storage tank is installed on the pressure gauge, and a switch valve is installed at the other end of the air delivery pipe; Two groups of the decontamination and extinguishing components are respectively arranged in the installation grooves. The decontamination and extinguishing component includes a diaphragm pump, a liquid inlet pipe, a first air inlet pipe, a three-way pipe, a second air inlet pipe, a third air inlet pipe, a four-way pipe, an exhalation pipe, a pressure relief pipe, a fourth air inlet pipe, a liquid outlet pipe, a pressure reducing valve, a check valve, a gas flow regulating valve, a mixing pipe, a foaming pipe and a spray gun.

[0006] Preferably, the two liquid storage chambers are respectively filled with fire extinguishing liquid and decontamination liquid. A detector is installed on one side of the box body. Elastic clamping members are installed on the outer walls of both sides of the box body. A support frame sleeved on the outer wall of the air delivery pipe is installed at the upper end of the box body.

[0007] Preferably, both ends of the liquid inlet pipe are respectively communicated with a diaphragm pump and a liquid storage chamber. Both ends of the first air inlet pipe are respectively communicated with a diaphragm pump and a three-way pipe. The other two ends of the three-way pipe are respectively installed and communicated with a second air inlet pipe and a third air inlet pipe. One end of the second air inlet pipe is communicated with an air storage tank. A pressure reducing valve and a check valve are sequentially installed on the second air inlet pipe.

[0008] Preferably, a four-way pipe is installed at one end of the third air inlet pipe. The other three open ends of the four-way pipe are respectively installed and communicated with an exhalation pipe, a pressure relief pipe and a fourth air inlet pipe. The gas flow regulating valve is installed between the third air inlet pipe and the four-way pipe. An air breathing joint is installed at one end of the exhalation pipe. A pressure relief valve is installed at one end of the pressure relief pipe.

[0009] Preferably, the inside of the mixing pipe is respectively installed and communicated with a liquid outlet pipe and a fourth air inlet pipe. The mixing pipe and the foaming pipe are fixed by threads. One end of the spray gun is installed with a hose fixedly connected to the output end of the foaming pipe. The spray gun is fixed on the side wall of the box body through an elastic clamping member.

[0010] By adopting the above technical solutions, a detachable shoulder strap is installed on one side of the box body. When in use, a single person carries the box body into the fire scene. The two provided liquid storage chambers respectively store fire extinguishing liquid and decontamination liquid through the adding ports, which can conveniently and quickly reach the scene to extinguish the fire and decontaminate the personnel, and can flexibly select the appropriate function according to the needs.

[0011] Preferably, a conical pipe is installed on the inner side wall of one end of the mixing pipe away from the foaming pipe. A fixing frame is installed on the inner wall of the mixing pipe close to the conical pipe. A fixing shaft is installed at the center of the fixing frame. A first adjusting sleeve and a second adjusting sleeve are respectively rotated on the outer wall of the fixing shaft. Bearings sleeved on the outside of the fixing shaft are installed on the inner walls of the first adjusting sleeve and the second adjusting sleeve.

[0012] Preferably, a turbine is installed on the outer wall of the first adjusting sleeve. A plurality of convex strips are installed on the blades of the turbine. A push block is installed on the side wall of one end of the first adjusting sleeve. A limiting block abutted against the push block is installed on the side wall of one end of the second adjusting sleeve. A mounting seat is arranged on the side wall of the second adjusting sleeve. A first brush is installed on the side wall of the mounting seat.

[0013] Preferably, a weight piece is installed on the inner wall of the mounting seat.

[0014] By adopting the above technical solution, the turbine breaks the air into a large number of tiny bubbles and evenly disperses them in the liquid, greatly increasing the contact area between the gas and the liquid, allowing the air to be evenly dispersed in the liquid. In this way, it is easier to form bubbles with uniform size and fineness after entering the foaming tube, avoiding local aggregation caused by uneven distribution of gas and liquid in the foaming tube and forming bubbles with different sizes.

[0015] Preferably, one end of the fixed shaft is rotatably connected to a first gear, and an internal gear ring meshed with the first gear is installed on the inner side wall of one end of the second adjusting sleeve.

[0016] Preferably, a rotating shaft is installed at one end of the fixed shaft, a second gear rotatably connected to the inner wall of the second adjusting sleeve is installed at one end of the rotating shaft, the second gear is meshed with the first gear, and a second brush is installed on the side wall of the rotating shaft.

[0017] By adopting the above technical solution, the second brush that rotates in the opposite direction to the first brush generates a stronger cutting force on the gas and the liquid, capable of breaking the originally larger bubbles or gas clusters into smaller bubbles, making them more finely dispersed in the liquid, thereby improving the quality of the subsequent foam.

[0018] The beneficial effects of the present invention are: The two provided liquid storage chambers store the fire extinguishing liquid and the decontamination liquid respectively through the addition ports, facilitating quickly reaching the scene to extinguish the fire and decontaminate personnel, and can flexibly select the appropriate function according to the needs; The setting of the turbine allows the air and the liquid to be fully mixed before entering the foaming tube, enabling the air to be evenly dispersed in the liquid, avoiding local aggregation caused by uneven distribution of gas and liquid in the foaming tube, and improving the subsequent foaming effect; The first brush with a changed rotation speed breaks the relatively stable flow field around it to generate a more complex flow situation, improving the quality of the subsequent bubbles. And during the rotation of the brush, due to the setting of its several fine bristles, different-direction forces can be exerted on the aggregated bubbles, breaking them and evenly dispersing them in the liquid, helping to evenly disperse the air bubbles in the liquid and improving the quality and stability of the foam; The brush set to rotate in the opposite direction to the first brush generates a stronger cutting force on the gas and the liquid, capable of breaking the originally larger bubbles or gas clusters into smaller bubbles, making them more finely dispersed in the liquid, thereby improving the quality of the subsequent foam. Description of the Drawings

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 is a front schematic view of a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 2 is a rear schematic view of a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 3 is a top view cross-sectional view of a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 4 is a top view half-sectional view of a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 5 is a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention Figure 4 magnified view of the structure of area A therein; Figure 6 is a rear half-sectional view of a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 7 is a schematic view of the drive structure in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 8 is a schematic view of the connection of the mixing tube in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 9 is a cross-sectional view of a partial structure of the mixing tube in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 10 is a cross-sectional view of the mixing tube in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 11 is a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention Figure 10 magnified view of the structure of area B therein; Figure 12 is a schematic view of the internal mixing component structure of the mixing tube in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 13 is a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention Figure 12 magnified view of the structure of area C therein; Figure 14It is a cross-sectional view of the internal mixing component structure of the mixing pipe in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 15 It is a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention Figure 14 The enlarged view of the structure in area D; Figure 16 It is a side cross-sectional view of the internal mixing component of the mixing pipe in a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention; Figure 17 It is a backpack-type poison decontamination and fire extinguishing device provided by an embodiment of the present invention Figure 16 The enlarged view of the structure in area E.

[0021] In the figure: 1. Box body; 11. Partition board; 111. Liquid storage cavity; 12. Gas storage tank; 13. Filling port; 131. Sealing cover; 14. Installation groove; 15. Detector; 16. Elastic clamping member; 17. Support frame; 2. Pressure gauge; 21. Gas transmission pipe; 22. Switch valve; 3. Diaphragm pump; 31. Liquid inlet pipe; 311. First air inlet pipe; 32. Three-way pipe; 321. Second air inlet pipe; 322. Third air inlet pipe; 33. Four-way pipe; 331. Exhalation pipe; 3311. Air respirator joint; 332. Pressure relief pipe; 3321. Pressure relief valve; 333. Fourth air inlet pipe; 34. Liquid outlet pipe; 35. Pressure reducing valve; 36. Check valve; 37. Gas flow regulating valve; 4. Mixing pipe; 41. Conical pipe; 42. Fixed frame; 421. Fixed shaft; 422. First gear; 43. First adjusting sleeve; 431. Turbine; 432. Rib; 433. Pusher block; 44. Second adjusting sleeve; 441. Mounting seat; 442. Counterweight; 443. First brush; 444. Internal gear ring; 445. Limiting block; 45. Rotating shaft; 451. Second gear; 452. Second brush; 5. Foaming pipe; 6. Spray gun; 61. Hose; Specific embodiments To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Example 1, refer to Figures 1 - 7, a backpack - type poison decontamination and fire - extinguishing device, comprising a box body 1, a pressure gauge 2 and a decontamination and extinguishing component arranged on the box body 1. A cavity is formed inside the box body 1. A partition 11 is arranged inside the box body 1 to divide the cavity into two liquid storage cavities 111. The inner wall of the liquid storage cavity 111 is equipped with a filling port 13, and a sealing cover 131 is installed outside the filling port 13. An air storage tank 12 is installed on one side of the box body 1, and two symmetrical installation grooves 14 are formed inside the box body 1; The pressure gauge 2 is installed on the outer wall of one side of the box body 1. An air delivery pipe 21 communicating with the air storage tank 12 is installed on the pressure gauge 2, and a switch valve 22 is installed at the other end of the air delivery pipe 21; Two groups of decontamination and extinguishing components are respectively arranged in the installation grooves 14. The decontamination and extinguishing component includes a diaphragm pump 3, a liquid inlet pipe 31, a first air inlet pipe 311, a three - way pipe 32, a second air inlet pipe 321, a third air inlet pipe 322, a four - way pipe 33, an exhalation pipe 331, a pressure relief pipe 332, a fourth air inlet pipe 333, a liquid outlet pipe 34, a pressure reducing valve 35, a check valve 36, a gas flow regulating valve 37, a mixing pipe 4, a foaming pipe 5 and a spray gun 6.

[0023] Furthermore, the two liquid storage cavities 111 are respectively filled with fire - extinguishing liquid and decontamination liquid. A detector 15 is installed on one side of the box body 1. Elastic clamping parts 16 are installed on the outer walls of both sides of the box body 1. A support frame 17 sleeving the outer wall of the air delivery pipe 21 is installed at the upper end of the box body 1. The two ends of the liquid inlet pipe 31 are respectively communicated with the diaphragm pump 3 and the liquid storage cavity 111. The two ends of the first air inlet pipe 311 are respectively communicated with the diaphragm pump 3 and the three - way pipe 32. The other two ends of the three - way pipe 32 are respectively installed and communicated with the second air inlet pipe 321 and the third air inlet pipe 322. One end of the second air inlet pipe 321 is communicated with the air storage tank 12, and a pressure reducing valve 35 and a check valve 36 are successively installed on the second air inlet pipe 321. One end of the third air inlet pipe 322 is installed with a four - way pipe 33. The other three open ends of the four - way pipe 33 are respectively installed and communicated with the exhalation pipe 331, the pressure relief pipe 332 and the fourth air inlet pipe 333. The gas flow regulating valve 37 is installed between the third air inlet pipe 322 and the four - way pipe 33. One end of the exhalation pipe 331 is installed with an air - breathing joint 3311. One end of the pressure relief pipe 332 is installed with a pressure relief valve 3321. The inner part of the mixing pipe 4 is respectively installed and communicated with the liquid outlet pipe 34 and the fourth air inlet pipe 333. The mixing pipe 4 and the foaming pipe 5 are fixed by threads. One end of the spray gun 6 is installed with a hose 61 fixedly connected to the output end of the foaming pipe 5. The spray gun 6 is fixed on the side wall of the box body 1 through the elastic clamping part 16.

[0024] It should be noted that: A detachable shoulder strap is installed on one side of the box body 1. When in use, a single person can carry the box body 1 into the fire scene. The two liquid storage chambers 111 are respectively used to store fire extinguishing liquid and decontamination liquid through the adding ports 13, which can facilitate and quickly reach the scene to extinguish the fire and decontaminate personnel. It can flexibly select the appropriate function according to the needs. In addition, the detector 15 provided on one side of the box body 1 detects the nuclear radiation dose of the surrounding environment and has a function of prompting and alarming. Before use, the switch valve 22 is opened, and high-pressure air is introduced into the air storage tank 12 through the air delivery pipe 21. The pressure gauge 2 provided in the middle of the air delivery pipe 21 can display the working pressure in the air storage tank 12 in real time, and the sufficiency of the gas inside the tank body can be judged according to this value. When the spray gun 6 is in use, the air storage tank 12 serves as the working air source. The pressure is reduced to the working pressure through the pressure reducing valve 35 and the one-way valve 36. When passing through the three-way pipe 32, one of the air sources enters the diaphragm pump 3 as the driving air source of the pump, driving the pump body to pump the liquid inside the liquid storage chamber 111 into the diaphragm pump 3 through the liquid inlet pipe 31, and then the liquid is pumped into the mixing pipe 4 through the liquid outlet pipe 34 and then enters the foaming pipe 5. At the same time, the other air source of the three-way pipe 32 enters the four-way pipe 33 and is divided into three air sources. One air source enters the breathing pipe 331, is connected through the air breathing joint 3311 and the face mask, and provides fresh air for the rescue personnel when entering the fire scene to avoid inhaling harmful gases in the surrounding area and causing infection. At the same time, another air source enters the pressure relief pipe 332, and under the action of the pressure relief valve 3321, the working air source pressure is ensured to be stable, safe and reliable. The last air source enters the mixing pipe 4 through the fourth air inlet pipe 333 and then enters the foaming pipe 5, and is mixed with the liquid therein to generate foam. Then the foam liquid is sprayed out through the spray gun 6. The gas flow regulating valve 37 controls the gas flow entering the foaming pipe 5, and further controls the gas flow entering the liquid within a specific time, thereby adjusting the foaming effect of the liquid and the working pressure of the spray. At the same time, by virtue of the expansion characteristics of the foam, the fire extinguishing liquid and the decontamination liquid can be widely covered on the surface of the object. When extinguishing the fire, it can effectively cover the burning object to improve the fire extinguishing effect. At the same time, the decontamination liquid can also quickly cover the human body to complete large-area disinfection and improve the disinfection effect.

[0025] Example 2. Refer to Figures 8 - 17 , on the basis of Example 1, in order to improve the mixing effect between air and liquid before entering the foaming pipe 5 to assist the subsequent foaming process; Further, a conical tube 41 is installed on the inner side wall of one end of the mixing tube 4 away from the foaming tube 5. A fixing frame 42 is installed on the inner wall of the mixing tube 4 close to the conical tube 41. A fixing shaft 421 is installed at the center of the fixing frame 42. A first adjusting sleeve 43 and a second adjusting sleeve 44 are respectively rotated on the outer wall of the fixing shaft 421. Bearings sleeved on the outer side of the fixing shaft 421 are installed on the inner walls of the first adjusting sleeve 43 and the second adjusting sleeve 44. A turbine 431 is installed on the outer wall of the first adjusting sleeve 43. A number of ridges 432 are installed on the blades of the turbine 431. A push block 433 is installed on the side wall of one end of the first adjusting sleeve 43. A limiting block 445 abutted against the push block 433 is installed on the side wall of one end of the second adjusting sleeve 44. An installation seat 441 is arranged on the side wall of the second adjusting sleeve 44. A first brush 443 is installed on the side wall of the installation seat 441. A counterweight piece 442 is installed on the inner wall of the installation seat 441; It should be noted that: the air and liquid entering the mixing tube 4 increase the pressure entering the inside of the tube body through the different sizes of the openings at both ends of the conical tube 41, and directly act on the turbine 431 at the same time to make it rotate. During the rotation process, the air and liquid are stirred and mixed. Before entering the foaming tube 5, the air and liquid are fully mixed, and the air can be broken into a large number of tiny bubbles and evenly dispersed in the liquid, greatly increasing the contact area between the air and the liquid, allowing the air to be evenly dispersed in the liquid. In this way, it is easier to form uniformly sized and fine bubbles after entering the foaming tube 5, avoiding uneven distribution of gas and liquid in the foaming tube 5 resulting in local aggregation and forming bubbles of different sizes. At the same time, the ridges 432 arranged on the surface of the turbine 431 apply uneven forces to the larger bubbles during the rotation process, splitting them into smaller bubbles, enabling the air to be more evenly distributed in the liquid and helping to better foam subsequently; While the turbine 431 drives the first adjusting sleeve 43 to rotate, the push block 433 on its outer side abuts against the limiting block 445 on one side of the second adjusting sleeve 44, so that the first brush 443 on the outer side of the second adjusting sleeve 44 rotates to clean the inner wall of the pipeline, breaking the liquid film formed by the liquid and the inner wall of the mixing tube 4, avoiding the accumulation of part of the liquid on the inner side wall and affecting the flow rate. During the process of the second adjusting sleeve 44 abutting and rotating, when it is at the highest position, under the action of the counterweight piece 442, the limiting block 445 and the push block 433 are separated and quickly fall, breaking the relatively stable flow field around originally and generating a more complex flow situation, forming more vortices and backflows, enhancing the turbulence degree between the liquids and thus helping the air and the liquid to better mix, improving the quality of subsequent bubbles, and the brush can apply forces in different directions to the aggregated bubbles during the rotation process due to the arrangement of its several fine bristles, breaking them and evenly dispersing them in the liquid, contributing to evenly dispersing the air bubbles in the liquid and improving the quality and stability of the foam.

[0026] Example 3, refer to Figures 8 - 17, on the basis of Embodiment 2, in order to further improve the foaming quality of the foaming tube 5; One end of the fixed shaft 421 is rotatably connected to a first gear 422. An internal gear ring 444 meshing with the first gear 422 is installed on the inner side wall of one end of the second adjusting sleeve 44. One end of the fixed shaft 421 is installed with a rotating shaft 45. One end of the rotating shaft 45 is installed with a second gear 451 rotatably connected to the inner wall of the second adjusting sleeve 44. The second gear 451 meshes with the first gear 422, and a second brush 452 is installed on the side wall of the rotating shaft 45.

[0027] It should be noted that: while the second adjusting sleeve 44 rotates, the internal gear ring 444 provided on the inner side wall of one end thereof meshes with the first gear 422 to rotate. At the same time, the first gear 422 meshes with the second gear 451, so that the rotating shaft 45 at one end thereof drives the second brush 452 on the outside to rotate, increasing the cleaning area. At the same time, it realizes the reverse rotation of the first brush 443, and generates a stronger cutting force on the gas and liquid, which can break the originally larger bubbles or gas masses into smaller bubbles, making them more finely dispersed in the liquid, thereby improving the quality of the subsequent foam.

[0028] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A backpack-type poison decontamination and fire extinguishing device, comprising a housing (1), a pressure gauge (2) and a fire extinguishing component arranged on the housing (1), characterized in that: The box body (1) has a cavity formed inside, a partition (11) is provided inside the box body (1) for dividing the cavity into two liquid storage chambers (111), an addition port (13) is installed on the inner wall of the liquid storage chamber (111), a sealing cover (131) is installed on the outer side of the addition port (13), a gas storage tank (12) is installed on one side of the box body (1), and two symmetrical installation grooves (14) are formed inside the box body (1); The pressure gauge (2) is mounted on an outer wall of one side of the box body (1); a gas pipe (21) connected to the gas storage tank (12) is mounted on the pressure gauge (2); a switch valve (22) is mounted on the other end of the gas pipe (21); The two groups of the fire-extinguishing components are respectively arranged in the mounting grooves (14), and the fire-extinguishing components include a diaphragm pump (3), a liquid inlet pipe (31), a first air inlet pipe (311), a three-way pipe (32), a second air inlet pipe (321), a third air inlet pipe (322), a four-way pipe (33), an exhalation pipe (331), a pressure relief pipe (332), a fourth air inlet pipe (333), a liquid outlet pipe (34), a pressure reducing valve (35), a one-way valve (36), a gas flow regulating valve (37), a mixing pipe (4), a foaming pipe (5), and a spray gun (6).

2. A backpack poison decontamination and fire extinguishing device according to claim 1, characterized in that: The two liquid storage chambers (111) are filled with fire extinguishing liquid and cleaning liquid respectively; a detector (15) is installed on one side of the box (1); elastic clamps (16) are installed on the outer walls of both sides of the box (1); and a support frame (17) sleeved on the outer wall of the gas transmission pipe (21) is installed on the upper end of the box (1).

3. A backpack poison decontamination and fire extinguishing device according to claim 2, characterized in that: The two ends of the liquid inlet pipe (31) are respectively connected to the diaphragm pump (3) and the liquid storage chamber (111); the two ends of the first air inlet pipe (311) are respectively connected to the diaphragm pump (3) and the three-way pipe (32); the other two ends of the three-way pipe (32) are respectively connected to the second air inlet pipe (321) and the third air inlet pipe (322); one end of the second air inlet pipe (321) is connected to the air storage tank (12); and a pressure reducing valve (35) and a one-way valve (36) are sequentially installed on the second air inlet pipe (321).

4. A backpack poison decontamination and fire extinguishing device according to claim 3, characterized in that: A four-way pipe (33) is installed at one end of the third air intake pipe (322); the other three end openings of the four-way pipe (33) are respectively connected to the exhalation pipe (331), the pressure relief pipe (332) and the fourth air intake pipe (333); the gas flow regulating valve (37) is installed between the third air intake pipe (322) and the four-way pipe (33); an air-exhalation joint (3311) is installed at one end of the exhalation pipe (331); and a pressure relief valve (3321) is installed at one end of the pressure relief pipe (332).

5. A backpack poison decontamination and fire extinguishing device according to claim 4, characterized in that: The interior of the mixing tube (4) is respectively connected to the liquid outlet tube (34) and the fourth air inlet tube (333); the mixing tube (4) and the foaming tube (5) are fixed via threads; one end of the spray gun (6) is provided with a hose (61) fixedly connected to the output end of the foaming tube (5); and the spray gun (6) is fixed to the side wall of the box body (1) via an elastic clamp (16).

6. A backpack poison decontamination and fire extinguishing device according to claim 1, characterized in that: A conical tube (41) is installed on the inner wall of one end of the mixing tube (4) away from the foaming tube (5); a fixing frame (42) is installed on the inner wall of the mixing tube (4) close to the conical tube (41); a fixing shaft (421) is installed at the center of the fixing frame (42); a first adjustment sleeve (43) and a second adjustment sleeve (44) are rotatably mounted on the outer wall of the fixing shaft (421); and bearings sleeved on the outer side of the fixing shaft (421) are installed on the inner walls of the first adjustment sleeve (43) and the second adjustment sleeve (44).

7. A backpack poison decontamination and fire extinguishing device according to claim 6, characterized in that: A turbine (431) is mounted on the outer wall of the first adjustment sleeve (43), a plurality of convex strips (432) are mounted on the blades of the turbine (431), a push block (433) is mounted on one end side wall of the first adjustment sleeve (43), a limit block (445) abutting against the push block (433) is mounted on one end side wall of the second adjustment sleeve (44), a mounting seat (441) is provided on the side wall of the second adjustment sleeve (44), and a first brush (443) is mounted on the side wall of the mounting seat (441).

8. A backpack poison decontamination and fire extinguishing device according to claim 7, characterized in that: A weight plate (442) is mounted on the inner wall of the mounting seat (441).

9. A backpack poison decontamination and fire extinguishing device according to claim 6, characterized in that: One end of the fixed shaft (421) is rotatably connected to a first gear (422), and an inner gear ring (444) meshingly connected to the first gear (422) is mounted on an inner side wall of one end of the second adjustment sleeve (44).

10. A backpack poison decontamination and fire extinguishing device according to claim 9, characterized in that: A rotating shaft (45) is mounted on one end of the fixed shaft (421); a second gear (451) rotatably connected to the inner wall of the second adjustment sleeve (44) is mounted on one end of the rotating shaft (45); the second gear (451) is meshingly connected to the first gear (422); and a second brush (452) is mounted on the side wall of the rotating shaft (45).

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