Portable high-pressure water mist fire extinguishing device

By introducing nozzle adjustment components, wind sensing adjustment components and nozzle detection components into the fine water mist fire extinguishing device, combined with the central processing unit and electromagnet system, the nozzle angle is automatically adjusted, which solves the problem of water mist deviation under strong wind conditions, improves fire extinguishing efficiency and accuracy, and avoids water resource waste.

CN120586331APending Publication Date: 2025-09-05TAIYUAN MINGQI UNITED SMART TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510858314.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-25
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

Under strong wind conditions, the atomized water droplets of existing fine water mist fire extinguishing devices are easily disturbed and deflected by the wind, causing the water mist particles to be blown away by the airflow and unable to effectively cover the fire source area. Manual adjustment of the nozzle angle has a lag, making it difficult to accurately match the dynamic environment, thereby prolonging the fire extinguishing response time.

Method used

It uses a nozzle adjustment component, a wind sensing adjustment component and a nozzle detection component. The central processor detects wind direction and water pressure changes in real time, automatically adjusts the nozzle angle, and ensures that the water mist covers the fire source area. Including a wind sensing adjustment component and a nozzle detection component, it uses electromagnets and mechanical transmission systems to achieve automatic correction, and combines pressure sensors to adjust water pressure to optimize the fire extinguishing effect.

Benefits of technology

It can automatically adjust the nozzle angle in strong wind environments, improve the fire extinguishing response speed and accuracy, ensure that the water mist covers the fire source area, improve the fire extinguishing efficiency and avoid water waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of fire fighting equipment, and particularly discloses a portable high-pressure water mist fire extinguishing device which comprises a fire extinguishing device body, a gun body and a central processing unit and further comprises a spray head adjusting assembly, a wind power induction adjusting assembly and a spray head detecting assembly. An anti-skid sleeve is installed outside the gun body, and a first hook-and-loop fastener and a second hook-and-loop fastener are arranged outside the anti-skid sleeve; by arranging the two wind power induction adjusting assemblies, the wind direction can be detected in real time, when strong wind blows to different directions, windmills in the wind power induction adjusting assemblies on the corresponding sides are driven by wind power to rotate, and after a series of mechanical transmission and electric signal conversion are conducted and a central processing unit judges the wind direction, a first electromagnet or a second electromagnet can be automatically controlled to be powered on; the spray head body moves in the corresponding direction, the water mist direction is automatically corrected, manual adjustment of an operator is not needed, the response speed and the adjustment accuracy of wind direction changes are greatly improved, and it is ensured that the water mist can effectively cover a fire source area.
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Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, in particular to a portable high-pressure fine water mist fire extinguishing device. Background Art

[0002] A high-pressure water mist fire extinguishing system uses high pressure to atomize water into extremely fine droplets for extinguishing fires. Its basic structure consists of the following main components: a high-pressure pump pressurizes water to a high pressure of 10-12 MPa, creating an extremely fine mist when sprayed; a water mist nozzle, through a specially designed nozzle, sprays high-pressure water into tiny droplets, typically between 50 and 150 microns in diameter; a water supply system, including a water source, water tank, and pipelines, ensures a continuous water supply; a control system, including fire detection sensors, control valves, and actuating devices, is responsible for fire detection and system startup and shutdown; a filtration system prevents impurities in the water from clogging the nozzles, ensuring reliable system operation; The system works by pressurizing water through a high-pressure pump, atomizing it into fine droplets through the nozzles. These droplets evaporate rapidly in the air, absorbing a large amount of heat, thereby reducing the flame temperature; the water mist also isolates the flame from oxygen, suppressing the flame; and the fine water mist cools the burning surface, preventing the spread of fire.

[0003] Currently, existing fine water mist fire extinguishing devices are susceptible to wind interference and deviation under strong wind conditions due to the small volume and light weight of the atomized water droplets. In strong wind environments, the water mist particles will be quickly blown away by the airflow and cannot effectively cover the fire source area. Some existing devices require operators to manually adjust the nozzle angle according to the wind direction, but the wind direction and intensity change in real time. Manual adjustment has a lag and is difficult to accurately match the dynamic environment, resulting in prolonged fire extinguishing response time. To this end, we propose a portable high-pressure fine water mist fire extinguishing device. Summary of the Invention

[0004] The purpose of the present invention is to provide a portable high-pressure fine water mist fire extinguishing device to solve the problem raised in the above background technology that the currently existing fine water mist fire extinguishing devices are easily affected by wind interference and offset under strong wind conditions due to the small volume and light weight of the atomized water droplets. In a strong wind environment, the water mist particles will be quickly blown away by the airflow and cannot effectively cover the fire source area. Some existing devices require operators to manually adjust the nozzle angle according to the wind direction, but the wind direction and intensity change in real time. Manual adjustment has lag and is difficult to accurately match the dynamic environment, resulting in prolonged fire extinguishing response time.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a portable high-pressure water mist fire extinguishing device, comprising a fire extinguishing device body, a gun body and a central processing unit, and further comprising: a nozzle adjustment component, a wind force sensing adjustment component and a nozzle detection component;

[0006] The outside of the gun body is equipped with an anti-slip cover, and the outside of the anti-slip cover is respectively provided with Velcro 1 and Velcro 2;

[0007] The nozzle adjustment assembly is arranged at one end of the gun body. There are two groups of wind sensing adjustment assemblies, which are respectively installed at both ends of the nozzle adjustment assembly for real-time detection of wind direction. The nozzle adjustment assembly adjusts the angle according to the detected wind direction. The nozzle detection assembly is installed on the top of the nozzle adjustment assembly for detecting the spraying angle of the nozzle adjustment assembly.

[0008] Among them, the nozzle adjustment assembly includes a mounting plate installed on the outside of the gun body, and two symmetrical mounting cylinders are installed on the top of the mounting plate. Electromagnet 1 and electromagnet 2 are installed inside the two mounting cylinders respectively, and spring 1 is installed on the top of electromagnet 1 and electromagnet 2.

[0009] Among them, the tops of the two springs are installed with sliding rods, the tops of the two sliding rods are connected to movable plates, the two movable plates are connected to mounting brackets, the two mounting brackets are jointly installed with the nozzle body, one end of the nozzle body is connected to a hose, and the hose is connected to the gun body.

[0010] Among them, the wind sensing and adjustment component includes an installation box installed on the outside of the installation plate, a box door is connected to one side of the installation box, a windmill is connected to the inside of the box door, a ventilation hole is opened on one side of the installation box, a connecting shaft is installed on one side of the windmill, and a gear 1 is installed on the outside of the connecting shaft.

[0011] Among them, the interior of the installation box is connected to gear 2, gear 1 is engaged with gear 2, a guide rod is installed inside the installation box, the outside of the guide rod is connected to a rack, and spring 2 is installed on one side of the interior of the installation box and outside the guide rod.

[0012] Among them, one end of the second spring is connected to the rack, the second gear is engaged with the rack, and a slide plate is installed at the bottom of the rack.

[0013] Among them, two symmetrical support plates are installed inside the installation box, and the two support plates are jointly provided with terminal posts and metal rods. The outside of the terminal posts is provided with resistance wires, and the outside of the metal rods is provided with slides, which are connected to the slide plate. A pressure sensor is provided on one side of the interior of the installation box.

[0014] Among them, a mounting seat is installed on one side of the interior of the mounting box, a slide is connected to the interior of the mounting seat, electromagnet three and electromagnet four are installed on both sides of the interior of the mounting seat respectively, and a damping rod is installed on the bottom side of the slide, and the damping rod corresponds to gear one.

[0015] Among them, the nozzle detection assembly includes a fixed seat installed on the top of the nozzle body, and pressure sensor 2 and pressure sensor 3 are installed on both sides of the interior of the fixed seat respectively. Spring 3 and spring 4 are installed on one end of pressure sensor 2 and pressure sensor 3 respectively, and a counterweight block is installed on one end of spring 3 and spring 4. The counterweight block is slidably connected to the interior of the fixed seat.

[0016] The present invention has at least the following beneficial effects:

[0017] When the present invention is in use, it is possible to detect the wind direction in real time by setting two wind sensing and adjusting components. When strong winds blow in different directions, the windmills in the wind sensing and adjusting components on the corresponding sides are driven to rotate by the wind. After a series of mechanical transmissions and electrical signal conversions, the central processing unit determines the wind direction and can automatically control electromagnet 1 or electromagnet 2 to be energized, so that the nozzle body moves in the corresponding direction and automatically corrects the direction of the water mist without the need for manual adjustment by the operator. This greatly improves the response speed and adjustment accuracy to changes in wind direction, ensures that the water mist can effectively cover the fire source area, and improves the fire extinguishing effect. When the water pressure is adjusted and there is wind, when the water pressure changes, the pressure sensor 1 is activated to control the electromagnet 2 to move in the corresponding direction. Iron three or electromagnet four, and then control the moving position of the damping rod. When the water pressure is high, the damping rod increases the squeezing force on gear one, reduces the rotation speed of gear one, and makes the rotation angle of the nozzle body smaller, thereby balancing the influence of increased water pressure and wind on the activity of the nozzle, and further ensuring the stability of the water mist spraying direction; the nozzle detection component can detect the spraying angle of the nozzle adjustment component. When the nozzle body is spraying upward, the wind interference is enhanced and the water pressure is increased; when the nozzle adjustment component is spraying downward, the wind interference is weakened and the water pressure is reduced. This design of automatically adjusting the water pressure according to the nozzle spraying angle can optimize the fire extinguishing effect according to the actual situation, while ensuring the fire extinguishing efficiency, avoiding the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the nozzle adjustment assembly of the present invention;

[0020] Figure 3 This is an internal diagram of the nozzle adjustment assembly of the present invention;

[0021] Figure 4 This is a schematic diagram of the wind force sensing and regulating assembly of the present invention;

[0022] Figure 5 This is a semi-exploded view of the wind force sensing and regulating assembly of the present invention from a first perspective;

[0023] Figure 6 This is a semi-exploded view of the wind force sensing and regulating assembly of the present invention from a second perspective;

[0024] Figure 7 This is a first-perspective internal view of the wind force sensing and regulating assembly of the present invention;

[0025] Figure 8 This is a second perspective internal view of the wind force sensing and regulating assembly of the present invention;

[0026] Figure 9 For the present invention Figure 8 A magnified view of middle A;

[0027] Figure 10 Schematic diagram of the nozzle detection assembly of the present invention.

[0028] Figure: 1. Fire extinguishing device body; 2. Gun body; 3. Nozzle adjustment assembly; 4. Wind sensor adjustment assembly; 5. Nozzle detection assembly; 6. Anti-slip cover; 7. Velcro 1; 8. Velcro 2; 9. CPU; 31. Mounting plate; 32. Mounting cylinder; 33. Electromagnet 1; 34. Spring 1; 35. Sliding rod; 36. Movable plate; 37. Mounting bracket; 38. Nozzle body; 39. Hose; 310. Electromagnet 2; 41. Mounting box; 42. Box door; 43. Windmill; 44. Ventilation hole; 45. Connecting shaft. 46. ​​Gear 1; 47. Gear 2; 48. Guide rod; 49. Rack; 410. Spring 2; 411. Slide plate; 412. Support plate; 413. Terminal; 414. Metal rod; 415. Resistance wire; 416. Slide; 417. Pressure sensor 1; 418. Mounting seat; 419. Slide seat; 420. Electromagnet 3; 421. Electromagnet 4; 422. Damping rod; 51. Fixing seat; 52. Pressure sensor 2; 53. Pressure sensor 3; 54. Spring 3; 55. Spring 4; 56. Counterweight. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1 to 10 The present invention provides a technical solution: a portable high-pressure water mist fire extinguishing device, comprising a fire extinguishing device body 1, a gun body 2 and a central processing unit 9, and further comprising: a nozzle adjustment component 3, a wind force sensing adjustment component 4 and a nozzle detection component 5;

[0032] The outside of the gun body 2 is provided with an anti-slip cover 6, and the outside of the anti-slip cover 6 is provided with a Velcro 1 7 and a Velcro 2 8 respectively;

[0033] The nozzle adjustment component 3 is provided at one end of the gun body 2. Two groups of wind force sensing adjustment components 4 are provided, which are respectively installed at both ends of the nozzle adjustment component 3 for real-time detection of wind direction. The nozzle adjustment component 3 adjusts the angle according to the detected wind direction. The nozzle detection component 5 is installed on the top of the nozzle adjustment component 3 for detecting the spraying angle of the nozzle adjustment component 3.

[0034] The nozzle adjustment assembly 3 includes a mounting plate 31 mounted on the outside of the gun body 2. Two symmetrical mounting cylinders 32 are mounted on the top of the mounting plate 31. Electromagnet 1 33 and electromagnet 2 310 are respectively mounted inside the two mounting cylinders 32. Spring 1 34 is mounted on the top of each of the electromagnets 1 33 and electromagnet 2 310. Slide rods 35 are mounted on the tops of the two springs 1 34. The tops of the two slide rods 35 are connected to movable plates 36. The two movable plates 36 are connected to mounting brackets 37. The two mounting brackets 37 jointly mount a nozzle body 38. One end of the nozzle body 38 is connected to a hose 39, which is connected to the gun body 2.

[0035] Since the nozzle body 38 is connected to the gun body 2 via a hose 39, the movement of the nozzle body 38 is not affected. The change of the rheostat can control the magnetic force of the electromagnet 1 33 or the electromagnet 2 310. The stronger the magnetic force of the electromagnet 1 33 or the electromagnet 2 310, the greater the rotation angle of the nozzle body 38. The two sliding rods 35 are both made of iron and are used to attract the electromagnet 1 33 or the electromagnet 2 310.

[0036] The wind force sensing and regulating assembly 4 includes an installation box 41 installed on the outside of the installation plate 31, a box door 42 is connected to one side of the installation box 41, a windmill 43 is connected to the inside of the box door 42, a ventilation hole 44 is opened on one side of the installation box 41, a connecting shaft 45 is installed on one side of the windmill 43, a gear 1 46 is installed on the outside of the connecting shaft 45, a gear 2 47 is connected to the inside of the installation box 41, and the gear 1 46 is meshed with the gear 2 47, a guide rod 48 is installed inside the installation box 41, and a rack 49 is connected to the outside of the guide rod 48, a spring 2 410 is installed on one side of the interior of the installation box 41 and on the outside of the guide rod 48, one end of the spring 2 410 is connected to the rack 49, and the gear 2 47 is meshed with the rack 49. A slide 411 is installed at the bottom, and two symmetrical support plates 412 are installed inside the installation box 41. The two support plates 412 are jointly provided with a terminal 413 and a metal rod 414. A resistance wire 415 is provided on the outside of the terminal 413, and a slide 416 is provided on the outside of the metal rod 414. The slide 416 is connected to the slide 411. A pressure sensor 1 417 is provided on one side of the interior of the installation box 41. A mounting seat 418 is installed on one side of the interior of the installation box 41. A slide 419 is connected to the interior of the mounting seat 418. Electromagnet 3 420 and electromagnet 4 421 are respectively installed on both sides of the interior of the mounting seat 418. A damping rod 422 is installed on one side of the bottom of the slide 419. The damping rod 422 corresponds to gear 1 46.

[0037] Gear 1 46 has a smaller diameter than gear 2 47 . Gear 1 46 and gear 2 47 have different teeth, resulting in faster rotation of gear 1 46 and slower rotation of gear 2 47 . Pressure sensor 1 417 is activated only when a change in water pressure is detected, thereby adjusting the position of damping rod 422 to control the rotation speed of gear 1 46 . This balances the movement of nozzle body 38 when increasing water pressure in windy conditions. Slider 419 is made of iron and is attracted to electromagnet 3 420 and electromagnet 4 421 .

[0038] The nozzle detection assembly 5 includes a fixed base 51 mounted on the top of the nozzle body 38. A second pressure sensor 52 and a third pressure sensor 53 are mounted on both sides of the fixed base 51. A third spring 54 and a fourth spring 55 are mounted on one end of the second pressure sensor 52 and the third pressure sensor 53, respectively. A counterweight 56 ​​is mounted on one end of the third spring 54 and the fourth spring 55. The counterweight 56 ​​is slidably connected to the interior of the fixed base 51.

[0039] The nozzle detection component 5 is set to detect whether the nozzle adjustment component 3 is spraying upward or downward. When the nozzle body 38 is spraying upward, the wind interference is enhanced, and the water pressure is increased at this time. When the nozzle adjustment component 3 is spraying downward, the wind interference is weakened, which can reduce the water pressure. The greater the pressure value received by the pressure sensor three 53, the greater the water pressure, and the greater the pressure value received by the pressure sensor two 52, the lower the water pressure.

[0040] When strong wind blows to the left, the windmill 43 in the left wind force sensing and regulating assembly 4 is driven to rotate by the wind, and the right assembly is not detected and remains stationary. When the windmill 43 rotates, it drives the gear 1 46 to rotate through the connecting shaft 45, and engages the gear 2 47 to rotate. At this time, the gear 2 47 drives the rack 49 to slide along the guide rod 48 and compresses the spring 2 410. When the rack 49 moves, it drives the slide 416 to move right along the resistance wire 415 through the slide plate 411. The central processing unit 9 determines that the wind direction is to the left. After analysis, the central processing unit 9 energizes the electromagnet 1 33, and the electromagnet 1 33 attracts the slide bar 35 to move downward, compresses the spring 1 34, and drives the sprinkler body 38 to move to the left through the movable plate 36, so that the sprinkler body 38 moves to the left. At this time, the direction of the water mist can be corrected to improve the fire extinguishing effect. On the contrary, when the wind direction is to the right, the electromagnet 2 310 is started, and the sprinkler body 38 moves to the right to correct the water mist fire extinguishing direction.

[0041] When the water pressure used by the device for fire extinguishing is adjusted and the water pressure value changes, if no wind is sensed, the corresponding water pressure is activated according to actual needs to extinguish the fire; if the wind is still sensed and the water pressure is adjusted, when the water pressure value changes, the pressure sensor 1 417 is activated, and the pressure sensor 1 417 controls the electromagnet 3 420 or the electromagnet 4 421, thereby controlling the movement position of the damping rod 422;

[0042] When the water pressure is high, the water mist sprayed from the nozzle body 38 has a better fire extinguishing effect. At this time, if the wind can still be felt, the slide 419 moves toward the electromagnet 4 421. When the water pressure is higher, the slide 419 moves closer to the electromagnet 4 421. At this time, the damping rod 422 squeezes the gear 1 46 with greater force, reducing the rotation speed of the gear 1 46. Since the rotation speed of the gear 1 46 can control the angle of the nozzle body 38 through a series of operations, the higher the water pressure, the smaller the rotation angle of the nozzle body 38.

[0043] The nozzle detection component 5 is set to detect whether the nozzle adjustment component 3 is spraying upward or downward. When the nozzle body 38 is spraying upward, the counterweight block 56 slides in the fixed seat 51 and squeezes the compression spring four 55. At this time, the pressure sensor three 53 is sensed and the water pressure is increased; when the nozzle body 38 is spraying downward, the counterweight block 56 slides in the fixed seat 51 and squeezes the compression spring three 54. At this time, the pressure sensor two 52 is sensed and used to reduce the water pressure.

[0044] Example 2

[0045] In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that the anti-slip cover 6 is a rubber pad. The user holds the anti-slip cover 6 to increase friction. When the user holds the gun body 2 through the anti-slip cover 6, the user's hand is fixed by Velcro 1 7 and Velcro 2 8.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A portable high-pressure water mist fire extinguishing device, comprising a fire extinguishing device body (1), a gun body (2) and a central processing unit (9), characterized in that: Also includes: A nozzle adjustment component (3), a wind force sensing adjustment component (4) and a nozzle detection component (5); The outside of the gun body (2) is provided with an anti-slip cover (6), and the outside of the anti-slip cover (6) is provided with a first Velcro (7) and a second Velcro (8); The nozzle adjustment component (3) is arranged at one end of the gun body (2); the wind force sensing adjustment component (4) is provided with two groups, which are respectively installed at the two ends of the nozzle adjustment component (3) for detecting the wind direction in real time; the nozzle adjustment component (3) adjusts the angle according to the detected wind direction; the nozzle detection component (5) is installed on the top of the nozzle adjustment component (3) for detecting the spraying angle of the nozzle adjustment component (3).

2. The portable high-pressure water mist fire extinguishing device according to claim 1, characterized in that: The nozzle adjustment assembly (3) includes a mounting plate (31) mounted on the outside of the gun body (2), two symmetrical mounting cylinders (32) are mounted on the top of the mounting plate (31), and electromagnet 1 (33) and electromagnet 2 (310) are mounted inside the two mounting cylinders (32), respectively, and spring 1 (34) is mounted on the top of both electromagnet 1 (33) and electromagnet 2 (310).

3. The portable high-pressure water mist fire extinguishing device according to claim 2, characterized in that: The tops of the two springs (34) are both mounted with slide bars (35), the tops of the two slide bars (35) are both connected with movable plates (36), the two movable plates (36) are both connected with mounting brackets (37), the two mounting brackets (37) are jointly mounted with a nozzle body (38), one end of the nozzle body (38) is connected with a hose (39), and the hose (39) is connected to the gun body (2).

4. The portable high-pressure water mist fire extinguishing device according to claim 2, characterized in that: The wind force sensing and regulating assembly (4) comprises an installation box (41) installed on the outside of the installation plate (31), one side of the installation box (41) is connected to a box door (42), the interior of the box door (42) is connected to a windmill (43), one side of the installation box (41) is provided with a ventilation hole (44), one side of the windmill (43) is installed with a connecting shaft (45), and the outside of the connecting shaft (45) is installed with a gear 1 (46).

5. The portable high-pressure water mist fire extinguishing device according to claim 4, characterized in that: The interior of the installation box (41) is connected to a second gear (47), the first gear (46) is meshed with the second gear (47), the interior of the installation box (41) is installed with a guide rod (48), the exterior of the guide rod (48) is connected to a rack (49), and a second spring (410) is installed on one side of the interior of the installation box (41) and on the exterior of the guide rod (48).

6. The portable high-pressure water mist fire extinguishing device according to claim 5, characterized in that: One end of the second spring (410) is connected to the rack (49), the second gear (47) is meshed with the rack (49), and a slide plate (411) is installed at the bottom of the rack (49).

7. The portable high-pressure water mist fire extinguishing device according to claim 6, characterized in that: Two symmetrical support plates (412) are installed inside the installation box (41), and the two support plates (412) are jointly provided with a terminal (413) and a metal rod (414). A resistance wire (415) is provided outside the terminal (413), and a slide (416) is provided outside the metal rod (414). The slide (416) is connected to the slide plate (411). A pressure sensor (417) is provided on one side inside the installation box (41).

8. The portable high-pressure water mist fire extinguishing device according to claim 6, characterized in that: A mounting seat (418) is installed on one side of the interior of the mounting box (41), a slide seat (419) is connected to the interior of the mounting seat (418), electromagnet three (420) and electromagnet four (421) are installed on both sides of the interior of the mounting seat (418), and a damping rod (422) is installed on one side of the bottom of the slide seat (419), and the damping rod (422) corresponds to gear one (46).

9. The portable high-pressure water mist fire extinguishing device according to claim 3, characterized in that: The nozzle detection assembly (5) includes a fixed seat (51) installed on the top of the nozzle body (38), and a pressure sensor 2 (52) and a pressure sensor 3 (53) are installed on both sides of the interior of the fixed seat (51), and a spring 3 (54) and a spring 4 (55) are installed on one end of the pressure sensor 2 (52) and the pressure sensor 3 (53), respectively. A counterweight (56) is installed on one end of the spring 3 (54) and the spring 4 (55), and the counterweight (56) is slidably connected to the interior of the fixed seat (51).