A self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments

Abstract

This invention provides a self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments, belonging to the field of fire rescue equipment technology. It includes a backplate with a hollow internal structure. Several guide plates are uniformly fixed to the inner wall of the backplate, forming a circulating water channel between them. A bracket is fixedly connected to the rear surface of the backplate, and a water reservoir is fixedly connected to the inner wall of the bracket. A distribution pipe is connected to the top of the water reservoir, and a water pump is installed on the distribution pipe. A first water inlet pipe is connected to the outer wall of the distribution pipe, with one end connected to the backplate. A return water pipe is connected to the bottom of the rear surface of the backplate, with one end connected to the water reservoir. This invention utilizes the continuous circulation of cooling water in the water reservoir within the backplate to actively absorb and remove heat from the backplate, achieving a self-cooling effect on the firefighter's back. This reduces the back contact temperature, improves operational comfort and safety, and extends the duration of a single operation.

Description

Technical Field

[0001] This invention relates to the field of fire rescue equipment technology, and in particular to a self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature environments in fire scenes. Background Technology

[0002] Backpack-mounted fine water mist fire extinguishing equipment is a portable fire extinguishing device carried by firefighters, suitable for localized fire suppression and personnel protection. It typically includes a backplate, water tank, water pump, piping, and spray nozzle. It utilizes high pressure to atomize water, creating a fine water mist for fire suppression. Fine water mist offers advantages such as cooling, oxygen isolation, and suppression of radiant heat, making it suitable for confined spaces, initial fires, and electrical fires. Due to its mobility, low water consumption, and minimal impact on protected objects, this type of equipment is widely used in fire and rescue operations.

[0003] However, existing backpack-mounted fine water mist fire extinguishing equipment has the following problems in practical use: Back heat load issue: The ambient temperature in a fire is extremely high. The back panel is in direct contact with the firefighter's back, and heat can easily be conducted to the body through the back panel, causing the firefighter's back to become hot and sweat excessively. In severe cases, this can lead to heat stress or heatstroke, affecting operational safety and efficiency. Traditional backpack-style equipment lacks the function of actively cooling the back panel and relies only on passive protection from heat insulation materials, resulting in limited cooling effects.

[0004] The inconvenience of operating the spray gun: Spray guns in backpack-style equipment are usually connected via hoses and hung on the back or side when not in use. When firefighters need to extinguish a fire, they must turn around or reach for the gun, which is inconvenient. Holding the spray gun for extended periods can also cause arm fatigue, affecting aiming stability and spray accuracy. Existing equipment lacks auxiliary support and position adjustment mechanisms for the spray gun, making it difficult to keep the spray gun ready for use while freeing up the firefighter's hands.

[0005] Therefore, a self-cooling backpack-type fine water mist fire extinguishing equipment is proposed for high-temperature fire environments. Summary of the Invention

[0006] In view of this, the present invention provides a self-cooling backpack fine water mist fire extinguishing equipment for high-temperature environments in fire scenes, in order to solve or alleviate one of the technical problems existing in the prior art, and at least provide a beneficial option.

[0007] The technical solution of this invention is implemented as follows: A self-cooling backpack fine water mist fire extinguishing equipment for high-temperature fire environments includes a back plate, which has an internal hollow structure. A plurality of guide plates are uniformly fixedly connected to the inner sidewall of the back plate, forming a circulating water channel between the guide plates. A bracket is fixedly connected to the rear surface of the back plate, and a water reservoir is fixedly connected to the inner sidewall of the bracket. A first protective cover is fixedly connected to the top of the water reservoir. A liquid distribution pipe is connected to the top of the water reservoir, and a water pump is installed on the liquid distribution pipe. The water pump is located on the inner sidewall of the first protective cover. A first water inlet pipe is connected to the outer sidewall of the liquid distribution pipe, and a flow valve is installed on the first water inlet pipe. One end of the first water inlet pipe is connected to the back plate. A return water pipe is connected to the bottom of the rear surface of the back plate, and a one-way valve is installed on the return water pipe. One end of the return water pipe is connected to the water reservoir.

[0008] A further preferred embodiment: the front surface of the back panel is symmetrically and fixedly connected with shoulder straps, and the top of the back panel is fixedly connected with a handle.

[0009] A further preferred embodiment: the outer wall of the liquid separator is connected to a second water inlet pipe.

[0010] A further preferred embodiment: one end of the second water inlet pipe is connected to a spray gun, and a handle is fixedly connected to the outer side wall of the spray gun, with a switch installed on the handle.

[0011] A further preferred embodiment: a nozzle is installed at one end of the spray gun.

[0012] A further preferred embodiment: a mounting base is fixedly connected to one side of the back plate.

[0013] A further preferred embodiment: a second protective cover is fixedly connected to one side of the mounting base, a drive motor is installed inside the second protective cover, and the output shaft of the drive motor is fixedly connected to one end of the linear module.

[0014] A further preferred embodiment: a slide block is mounted on one side of the linear module, and the slide block is slidably connected to the inner side wall of the mounting base.

[0015] A further preferred embodiment: a rotating platform is rotatably connected to one side of the slide via a damping shaft, and a locking knob is installed on one side of the rotating platform.

[0016] A further preferred embodiment: a support is fixedly connected to the top of the outer side wall of the rotary table, and the spray gun is disposed inside the support.

[0017] A further preferred embodiment: the top of the support is rotatably connected to a retaining ring, which is locked to the support by a latch.

[0018] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: I. This invention designs the backplate as a hollow structure with a guide plate inside to form a circulating water channel. Combined with components such as a distribution pipe, water pump, and return pipe, the cooling water in the water tank continuously circulates within the backplate, actively absorbing and carrying away heat from the backplate, achieving a self-cooling effect on the firefighter's back. Compared to passive insulation methods, this structure has high cooling efficiency, reduces the back contact temperature, alleviates the heat load on firefighters in high-temperature environments, improves operational comfort and safety, and extends the duration of a single operation.

[0019] Second, by setting up auxiliary support mechanisms such as mounting base, linear module, slide, rotating table and bracket, the present invention can fix the spray gun in the bracket and drive the slide to move forward through the linear module, so that the spray gun is moved from the back position to the side or front of the firefighter's body for easy operation. This not only plays a role in supporting the spray gun and reducing the fatigue of firefighters holding the spray gun for a long time, but also allows the spray gun to quickly enter the standby state, making it convenient to pick up or adjust the spray direction at any time, thus improving the convenience and efficiency of fire fighting operations.

[0020] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of the present invention from one perspective; Figure 2 This is a structural diagram from another perspective of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This is a structural diagram of the spray gun and support assembly of the present invention; Figure 5 This is a side view of the spray gun and support structure of the present invention; Figure 6 This is a diagram of the internal structure of the back plate of the present invention.

[0023] Reference numerals: 11. Back panel; 12. Shoulder strap; 13. Handle; 14. Bracket; 15. Water reservoir; 16. First protective cover; 17. Dispensing pipe; 18. First inlet pipe; 19. Flow valve; 20. Return pipe; 21. Check valve; 22. Guide plate; 23. Circulating water channel; 24. Second inlet pipe; 25. Spray gun; 26. Handle; 27. Switch; 28. Nozzle; 29. ​​Mounting base; 30. Second protective cover; 31. Linear module; 32. Slide; 33. Rotary table; 34. Locking knob; 35. Support; 36. Snap ring; 37. Lock. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-6As shown, this embodiment of the invention provides a self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments, including a backplate 11. The backplate 11 has an internal hollow structure, and several guide plates 22 are uniformly fixedly connected to its inner sidewall, forming a circulating water channel 23 between the guide plates 22. The function of the guide plates 22 is to guide the cooling water to flow in an S-shaped or serpentine path inside the backplate 11, prolonging the contact time between the water flow path and the backplate 11, thereby improving heat exchange efficiency. A bracket 14 is fixedly connected to the rear surface of the backplate 11 (i.e., the side away from the firefighter's back), and a water reservoir 15 is fixedly connected to the inner sidewall of the bracket 14. The water reservoir 15 is used to store fire extinguishing and cooling water. A first protective cover 16 is fixedly connected to the top of the water reservoir 15, which is used to protect the water pump inside from the effects of high temperatures, smoke, and external impacts in the fire. A distribution pipe 17 is connected to the top of the water reservoir 15. A water pump is installed on the distribution pipe 17, and the water pump is located on the inner wall of the first protective cover 16. After the water pump starts, it pumps water from the water reservoir 15 into the distribution pipe 17, and then distributes it to each water branch. A first inlet pipe 18 is connected to the outer wall of the distribution pipe 17. A flow valve 19 is installed on the first inlet pipe 18, and one end of the first inlet pipe 18 is connected to the back plate 11. The flow valve 19 can manually adjust the flow rate of cooling water entering the back plate 11 according to the fire temperature or the firefighter's own perception, thereby controlling the cooling intensity. A return pipe 20 is connected to the bottom of the rear surface of the back plate 11. A one-way valve 21 is installed on the return pipe 20, and one end of the return pipe 20 is connected to the water reservoir 15. The one-way valve 21 ensures that water can only flow from the back plate 11 to the water reservoir 15, preventing backflow. During operation, cooling water enters the circulating water channel 23 inside the back plate 11 through the first inlet pipe 18. After absorbing the heat on the back plate 11, the temperature rises, and then flows back to the water storage tank 15 through the return pipe 20, forming a cooling cycle to achieve continuous self-cooling.

[0027] In this embodiment, specifically: a carrying strap 12 is symmetrically and fixedly connected to the front surface of the back panel 11, the carrying strap 12 facilitates firefighters to carry fire extinguishing equipment, and a handle 13 is fixedly connected to the top of the back panel 11, the handle 13 facilitates firefighters to move fire extinguishing equipment by hand.

[0028] In this embodiment, specifically: the outer wall of the liquid distribution pipe 17 is connected to a second water inlet pipe 24. The second water inlet pipe 24 is used to divert water to the fire extinguishing spray gun 25, thereby achieving two uses for the water: part of the water is used to cool the back plate 11, and the other part of the water is used to spray fine water mist for fire extinguishing.

[0029] In this embodiment, specifically: one end of the second water inlet pipe 24 is connected to a spray gun 25, and a handle 26 is fixedly connected to the outer wall of the spray gun 25. A switch 27 is installed on the handle 26. Firefighters can control the opening and closing of the spray gun 25 by holding the handle 26 and pressing the switch 27, which is simple to operate.

[0030] In this embodiment, specifically: a nozzle 28 is installed at one end of the spray gun 25. The nozzle 28 is a fine water mist nozzle, which can atomize high-pressure water flow into tiny water droplets to form a fine water mist with cooling, oxygen-barrier, and radiant heat-suppressing effects.

[0031] In this embodiment, specifically: a mounting base 29 is fixedly connected to one side of the back plate 11. The mounting base 29 serves as a support structure and is used to connect and fix auxiliary mechanisms such as the linear module 31.

[0032] In this embodiment, specifically: a second protective cover 30 is fixedly connected to one side of the mounting base 29. A drive motor is installed inside the second protective cover 30, and the output shaft of the drive motor is fixedly connected to one end of the linear module 31. The second protective cover 30 is used to protect the drive motor from high temperature, smoke, dust, and impact damage. The drive motor provides power to the linear module 31, driving the slide 32 to move linearly.

[0033] In this embodiment, specifically: a slide block 32 is mounted on one side of the linear module 31, and the slide block 32 is slidably connected to the inner wall of the mounting base 29. The linear module 31 converts the rotational motion of the drive motor into the linear motion of the slide block 32, thereby enabling the slide block 32 to slide back and forth along the inner wall of the mounting base 29.

[0034] In this embodiment, specifically: a rotating platform 33 is rotatably connected to one side of the slide 32 via a damping shaft, and a locking knob 34 is installed on one side of the rotating platform 33. The damping shaft provides the rotating platform 33 with a certain frictional force during rotation, allowing it to stop at any angle. The locking knob 34 is used to lock the rotating platform 33 to prevent accidental rotation during use.

[0035] In this embodiment, specifically: a support 35 is fixedly connected to the top of the outer wall of the rotating platform 33, and the spray gun 25 is disposed inside the support 35. The support 35 is used to support the spray gun 25, providing auxiliary support and reducing the burden on firefighters holding the spray gun 25.

[0036] In this embodiment, specifically: a retaining ring 36 is rotatably connected to the top of the support 35, and the retaining ring 36 is locked to the support 35 by a latch 37. After the spray gun 25 is placed into the support 35, the retaining ring 36 is engaged and the latch 37 is locked to reliably fix the spray gun 25 in the support 35 and prevent it from falling off; after unlocking, the spray gun 25 can be quickly taken out for handheld operation.

[0037] In operation, the firefighter wears the backplate 11 on their back and secures it with the shoulder straps 12. The water pump is activated, drawing water from the reservoir 15 and diverting it through the distributor pipe 17. A portion of the water enters the backplate 11 through the first inlet pipe 18. The flow rate can be adjusted by the flow valve 19 according to the fire temperature or the firefighter's personal comfort. After entering the circulating water channel 23 formed by several guide plates 22, the water flows along an S-shaped path inside the backplate 11, fully absorbing heat from the fire environment and the firefighter's back, thus lowering the backplate 11's temperature and providing continuous cooling for the firefighter's back. The heated water then flows out through the return pipe 20 at the bottom of the back surface of the backplate 11 and returns to the reservoir 15 under the guidance of the one-way valve 21, achieving recycling. This process repeats, forming a self-cooling cycle.

[0038] When firefighting operations are required, the remaining water flowing out from the distributor pipe 17 is delivered to the spray gun 25 via the second inlet pipe 24. Firefighters can choose to operate the handheld spray gun 25: hold the handle 26, press the switch 27, and the water is atomized and sprayed out through the nozzle 28 to form a fine water mist for firefighting.

[0039] If firefighters wish to reduce the burden of holding the nozzle or need to quickly access the spray gun 25, they can utilize the auxiliary support mechanism provided by this invention. Activating the drive motor within the second protective cover 30 causes the linear module 31 to rotate, which in turn drives the slide 32 to slide forward along the inner wall of the mounting base 29. The slide 32 moves the rotating platform 33, the support 35, and the spray gun 25 fixed within the support 35 forward together, moving the spray gun 25 from its rear position to a position convenient for the firefighter to grip directly. Subsequently, the firefighter can adjust the spray angle of the spray gun 25 by rotating the rotating platform 33 via the damping shaft, and then lock it in place using the locking knob 34. For quick access, simply unlock the latch 37 and lift the retaining ring 36 to remove the spray gun 25 from the support 35 for handheld spraying. After the fire is extinguished, the spray gun 25 can be placed back into the support 35, the retaining ring 36 can be fastened and the locking buckle 37 can be locked. Then, the drive motor can be reversed to retract the slide 32 and the spray gun 25 to the storage position on the side of the back plate 11 for easy movement and carrying.

[0040] The flow valve 19 can adjust the cooling water flow rate at any time according to the temperature change of the fire site to ensure a balance between cooling effect and water consumption; the check valve 21 prevents water from flowing back to the back plate 11; the water pump works continuously to maintain circulation and spray pressure.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A self-cooling type of back-mounted water mist fire extinguishing equipment in a high-temperature environment of a fire scene, comprising a back plate (11), characterized in that: The back plate (11) has an internal hollow structure. Several guide plates (22) are uniformly fixedly connected to the inner sidewall of the back plate (11), forming a circulating water channel (23) between the guide plates (22). A bracket (14) is fixedly connected to the rear surface of the back plate (11). A water storage tank (15) is fixedly connected to the inner sidewall of the bracket (14). A first protective cover (16) is fixedly connected to the top of the water storage tank (15). A liquid distribution pipe (17) is connected to the top of the water storage tank (15). A water pump is installed on (17), the water pump is located on the inner side wall of the first protective cover (16), the outer side wall of the liquid distribution pipe (17) is connected to the first water inlet pipe (18), a flow valve (19) is installed on the first water inlet pipe (18), one end of the first water inlet pipe (18) is connected to the back plate (11), the bottom of the rear surface of the back plate (11) is connected to the return water pipe (20), a one-way valve (21) is installed on the return water pipe (20), and one end of the return water pipe (20) is connected to the water storage device (15).

2. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 1, characterized in that: The front surface of the back panel (11) is symmetrically fixedly connected with a shoulder strap (12), and the top of the back panel (11) is fixedly connected with a handle (13).

3. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 2, characterized in that: The outer wall of the liquid separator (17) is connected to a second water inlet pipe (24), one end of the second water inlet pipe (24) is connected to a spray gun (25), and the outer wall of the spray gun (25) is fixedly connected to a handle (26), and a switch (27) is installed on the handle (26).

4. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 3, characterized in that: A nozzle (28) is installed at one end of the spray gun (25).

5. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 3, characterized in that: A mounting base (29) is fixedly connected to one side of the back plate (11).

6. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 5, characterized in that: A second protective cover (30) is fixedly connected to one side of the mounting base (29). A drive motor is installed inside the second protective cover (30), and the output shaft of the drive motor is fixedly connected to one end of the linear module (31).

7. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature environments in fire scenes according to claim 6, characterized in that: A slide (32) is installed on one side of the linear module (31), and the slide (32) is slidably connected to the inner wall of the mounting base (29).

8. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 7, characterized in that: A rotating platform (33) is rotatably connected to one side of the slide (32) via a damping shaft, and a locking knob (34) is installed on one side of the rotating platform (33).

9. The self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 8, characterized in that: A support (35) is fixedly connected to the top of the outer wall of the rotary table (33), and the spray gun (25) is located inside the support (35).

10. A self-cooling backpack-type fine water mist fire extinguishing equipment for high-temperature fire environments according to claim 9, characterized in that: The top of the support (35) is rotatably connected to a retaining ring (36), which is locked to the support (35) by a latch (37).

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