Movable water mist spray gun device for fire fighting

By designing a mobile fine water mist spray gun device, the problems of poor flexibility and insufficient mobility of existing devices have been solved, enabling flexible movement and efficient fire extinguishing, reducing costs, and making it suitable for various fire scenarios.

CN224126467UActive Publication Date: 2026-04-17HUARUAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUARUAN TECH CO LTD
Filing Date
2025-03-31
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing fire extinguishing devices are inflexible and lack mobility, cannot reach narrow areas, and are costly, making it difficult to respond quickly to small or initial fires.

Method used

Design a mobile fine water mist spray gun device, including a mobile base, spray gun, water tank, water pump and water hose reel, equipped with universal pulleys and a telescopic spray gun rod, integrated control system and power supply device, with compact structure and easy operation.

Benefits of technology

It enables flexible movement in different terrains and environments, allowing it to penetrate narrow areas, improving the timeliness and efficiency of firefighting, reducing equipment and manpower costs, and making it suitable for a variety of fire scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a movable water mist spray gun device for fire fighting. The movable water mist spray gun device comprises a movable base, a spray gun, a water tank, a water pump and a water pipe reel, the movable base is of a box body structure, the water pump and the water pipe reel are both arranged in the movable base, and the water pipe reel is installed on the inner side wall of the movable base through a rotating shaft; the water tank is fixedly arranged above the movable base, and a water level observation window is formed in the side wall of the water tank and used for observing the water level in the water tank; a water outlet of the water tank is communicated with a water inlet of the water pump, a water outlet of the water pump is communicated with a water inlet of a water pipe on the water pipe reel, a water outlet of the water pipe on the water pipe reel is communicated with a water inlet of the spray gun, a telescopic spray gun rod is installed at a water outlet of the spray gun, and a water mist nozzle is arranged at the end, away from the spray gun, of the telescopic spray gun rod. The movable water mist fire extinguishing device is strong in maneuverability, wide in application scene, compact in structure, simple and convenient to operate, low in cost and timely and efficient in fire extinguishing.
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Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing technology, specifically to a mobile fine water mist spray gun device for fire extinguishing. Background Technology

[0002] In the field of fire fighting, traditional fire extinguishing methods such as water spraying and foam extinguishing, although widely used, have many limitations. Water spraying consumes a large amount of water resources and can easily cause water damage to on-site equipment and unburned items; foam extinguishing may have adverse environmental impacts due to foam residue and also adds difficulty to subsequent cleanup work.

[0003] In recent years, fine water mist fire suppression technology has emerged, boasting advantages such as high fire extinguishing efficiency, low water consumption, and minimal environmental impact. However, most fine water mist spray guns currently on the market are either fixed or large vehicle-mounted. Fixed spray guns lack flexibility, making it difficult to quickly adjust their position in complex and changing fire scenes; while large vehicle-mounted spray guns offer some mobility, they are limited by road and site conditions, preventing them from reaching narrow alleys, indoor spaces, and other special areas for fire suppression operations. Moreover, their high cost and complex operation make them unsuitable for rapidly extinguishing small or initial fires. Therefore, the development of a flexible, convenient, and highly adaptable mobile fine water mist spray gun device is urgently needed. Utility Model Content

[0004] Therefore, this utility model provides a mobile fine water mist spray gun device for fire extinguishing to solve the above-mentioned problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] According to a first aspect of the present invention, a mobile fine water mist spray gun device for fire extinguishing includes a mobile base, a spray gun, a water tank, a water pump, and a water hose reel.

[0007] The mobile base has a box-like structure, and the water pump and water pipe reel are both installed inside the mobile base. The water pipe reel is mounted on the inner side wall of the mobile base via a rotating shaft.

[0008] The water tank is fixedly installed above the movable base, and a water level observation window is provided on the side wall of the water tank for observing the water level in the water tank.

[0009] The water tank outlet is connected to the water pump inlet, the water pump outlet is connected to the water pipe inlet on the water pipe reel, the water pipe outlet on the water pipe reel is connected to the spray gun inlet, the spray gun outlet is equipped with a telescopic spray gun rod, and the end of the telescopic spray gun rod away from the spray gun is provided with a fine water mist nozzle.

[0010] Furthermore, the movable base is a rigid metal box structure, and multiple omnidirectional casters are evenly provided on the bottom of the movable base.

[0011] Furthermore, the movable base is equipped with a braking device, which is used to brake the omnidirectional pulley.

[0012] Furthermore, it also includes a control system and a power supply device. The control system is electrically connected to the water pump and is used to control the start and stop of the water pump. The power supply device is electrically connected to the control system and the water pump and supplies power to them.

[0013] Furthermore, the spray gun is detachably mounted on the movable base.

[0014] Furthermore, the spray gun is equipped with a control handle, which is located at the end of the spray gun away from the telescopic spray gun rod, and the control handle is used to control the start and stop of the spray gun.

[0015] Furthermore, the power supply device employs a rechargeable battery pack.

[0016] Furthermore, a control valve is provided between the water pump and the water pipe reel. The control valve is electrically connected to the control system. The control system adjusts the flow rate of the water pump by controlling the control valve. The control valve is also electrically connected to the power supply device.

[0017] Furthermore, the control valve is an electromagnetic control valve.

[0018] This utility model has the following advantages:

[0019] This invention features a mobile base, allowing it to move flexibly across various terrains and environments. Compared to fixed fine water mist spray guns, it eliminates the constraints of fixed locations. Compared to large vehicle-mounted devices, it is not limited by road or site conditions and can penetrate narrow alleys, indoor spaces, and other special areas. Because it can be quickly moved to the fire scene, it greatly improves the timeliness and efficiency of firefighting, solving the problem of poor mobility in existing devices.

[0020] The spray gun is equipped with a telescopic spray gun boom and a fine water mist nozzle. The telescopic spray gun boom can be adjusted in length according to the actual conditions at the fire scene, thereby changing the spray distance and coverage area, making it suitable for fire scenarios with different spaces and distances. The fine water mist nozzle can spray a fine water mist, which consumes less water and has a smaller impact on the environment. It is suitable for various types of fires and overcomes the problem of the narrow applicability of existing devices.

[0021] A water level observation window is provided on the side wall of the water tank, allowing firefighters to visually monitor the water level at any time, understand the water supply status of the device, and ensure the continuity of firefighting operations. Components such as the water pump and hose reel are integrated into the mobile base, resulting in a compact structure that reduces external connecting parts and lowers the probability of equipment failure. The hose reel's design facilitates the storage and deployment of the hose, simplifying operation and reducing the difficulty of use, enabling firefighters to use the device more quickly and efficiently for firefighting.

[0022] Compared to large vehicle-mounted fine water mist spray guns, this mobile device has a relatively simple structure, does not require a large vehicle for support, and reduces equipment costs. At the same time, it is easy to operate, requires no complex training, saves labor costs, and is suitable for widespread use in fighting small fires or initial fires, effectively reducing overall operating costs while ensuring fire extinguishing effectiveness. Attached Figure Description

[0023] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0025] Figure 1 This is a schematic diagram of a mobile fine water mist spray gun device for fire extinguishing, provided for some embodiments of the present invention.

[0026] Figure 2 This is a side view of a mobile fine water mist spray gun device for fire extinguishing, provided for some embodiments of the present invention.

[0027] Figure 3 This is a schematic diagram of a mobile fine water mist spray gun device for fire extinguishing, provided for some embodiments of the present invention.

[0028] Figure 4 This is a schematic diagram of a fine water mist nozzle for a mobile fine water mist spray gun device used for fire extinguishing, provided for some embodiments of the present invention.

[0029] In the picture:

[0030] 1. Movable base; 2. Universal casters; 3. Spray gun; 4. Water tank; 5. Water level observation window; 6. Water pump; 7. Control valve; 8. Battery pack; 9. Water hose reel; 10. Fine water mist nozzle; 101. Nozzle body; 102. Water outlet cover; 103. Water outlet hole; 11. Spray gun rod; 12. Control handle. Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Example 1

[0033] like Figures 1 to 4 As shown in the first aspect embodiment of this utility model, a mobile fine water mist spray gun 3 for fire extinguishing mainly consists of a mobile base 1, a spray gun 3, a water tank 4, a water pump 6, and a water hose reel 9. The mobile base 1 adopts a rigid metal box structure, with four universal casters 2 evenly installed on the bottom for easy movement on various ground surfaces. The water tank 4 is fixed above the mobile base 1. The water tank 4 is cuboid in shape and made of high-strength plastic. A rectangular water level observation window 5 is opened in the middle of its side wall. This observation window is made of transparent plexiglass and is tightly connected to the water tank 4 by a sealing strip to ensure no leakage, allowing firefighters to observe the water level in the water tank 4 at any time.

[0034] The vertical height difference between water tank 4 and water pump 6 is approximately 0.4 meters. Gravitational potential energy is used to reduce the starting load of water pump 6. Water pump 6 and hose reel 9 are installed inside the movable base 1. Hose reel 9 is mounted on the inner wall of the movable base 1 via a rotating shaft. The two ends of the rotating shaft are fixed by bearings, allowing hose reel 9 to rotate easily. The outlet of water tank 4 is connected to the inlet of water pump 6 via a high-pressure resistant rubber hose. Both ends of the rubber hose are secured with clamps to prevent leakage. The outlet of water pump 6 is connected to the inlet of the hose on hose reel 9 via another rubber hose. The hose on hose reel 9 is a high-strength, wear-resistant rubber flexible hose, and its outlet is connected to the inlet of spray gun 3 via a quick connector for easy disassembly. The nozzle of the spray gun 3 is equipped with a telescopic spray gun rod 3, which is composed of multiple sections of metal tubes of different diameters. The telescopic position is fixed by threads or snaps. A fine water mist nozzle 10 is installed at the end of the telescopic spray gun rod away from the spray gun 3. The fine water mist nozzle 10 includes a nozzle body 101 and a water outlet cover plate 102. Several water outlet holes 103 are distributed in a circular array on the water outlet cover plate 102. The nozzle body 101 has a hollow internal structure. The water outlet cover plate 102 is fixedly installed at the water outlet of the nozzle body 101 and communicates with the hollow structure. The water inlet of the nozzle body 101 is connected to the water outlet of the telescopic spray gun rod 3. Under the pressure of the water flow, the fine water mist nozzle 10 can disperse water into a uniform fine water mist.

[0035] This device is equipped with a control system and a power supply. The control system is located on one side of the mobile base 1 and is an integrated control panel. The panel has control elements such as a start / stop button for the water pump 6 and a flow rate adjustment knob. The control system is electrically connected to the water pump 6 via wires and is used to control the start and stop of the water pump 6. The power supply uses a rechargeable lithium battery pack 8, which is placed in a special compartment inside the mobile base 1 and is electrically connected to and supplies power to the control system and the water pump 6 via wires.

[0036] The spray gun 3 is detachably mounted on a hook on the side of the movable base 1 for easy access. The spray gun 3 is equipped with a control handle 12, which is located at the end of the spray gun 3 away from the telescopic spray gun 3 rod. The control handle 12 is equipped with a switch button for controlling the start and stop of the spray gun 3.

[0037] An electromagnetic control valve is installed between the water pump 6 and the water pipe reel 9. The electromagnetic control valve is electrically connected to the control system. The control system adjusts the flow rate of the water pump 6 by controlling the electromagnetic control valve. The electromagnetic control valve is also electrically connected to the power supply device to ensure its normal operation.

[0038] Example 2

[0039] like Figures 1 to 4As shown, the difference is that the material of the movable base 1 has been changed to a lightweight alloy, which reduces the overall weight of the device while ensuring strength. The number of universal casters 2 has been increased to six, and two of the universal casters 2 are equipped with brakes. The brakes are foot-operated brakes, which can be applied by stepping on the pedal to brake the universal casters 2, making the device more stable during firefighting operations.

[0040] The shape of water tank 4 has been changed to a cylinder to improve space utilization. The water level observation window 5 has been augmented with graduations for more accurate assessment of the remaining water level in tank 4. A quick-fill inlet with a threaded sealing cap is located on the top of water tank 4 for convenient and rapid water replenishment.

[0041] The surface of the spray gun 3 is covered with a non-slip rubber sleeve for a more comfortable grip. The telescopic mechanism of the telescopic spray gun 3 rod has been changed to electric telescopic, controlled by buttons on the control system, improving ease of operation. The fine water mist nozzle 10 has been replaced with a high-pressure impact fine water mist nozzle 10, which can produce finer droplets and improve fire extinguishing efficiency.

[0042] The control system adds wireless remote control functionality and is equipped with a portable remote control, allowing firefighters to control the start / stop of water pump 6, flow rate adjustment, and the switch of spray gun 3 from a certain distance, improving the safety and flexibility of firefighting operations.

[0043] The power supply unit uses a removable battery pack 8, which can be quickly replaced with a backup battery pack 8 when the battery power is low, ensuring continuous operation of the device. Furthermore, a solar charging panel is added, allowing the battery pack 8 to be charged using solar energy when the device is not in use, thus saving energy and being environmentally friendly.

[0044] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0045] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

Claims

1. A mobile water mist spray gun device for fire extinguishing, characterized in that, Includes a mobile base (1), a spray gun (3), a water tank (4), a water pump (6), and a water hose reel (9); The movable base (1) has a box structure. The water pump (6) and the water pipe reel (9) are both installed inside the movable base (1). The water pipe reel (9) is installed on the inner side wall of the movable base (1) through a rotating shaft. The water tank (4) is fixedly installed above the movable base (1), and a water level observation window (5) is provided on the side wall of the water tank (4). The water level observation window (5) is used to observe the water level in the water tank (4). The outlet of the water tank (4) is connected to the inlet of the water pump (6), the outlet of the water pump (6) is connected to the inlet of the water pipe on the water pipe reel (9), the outlet of the water pipe on the water pipe reel (9) is connected to the inlet of the spray gun (3), the outlet of the spray gun (3) is equipped with a telescopic spray gun rod (11), and the end of the telescopic spray gun rod (11) away from the spray gun (3) is provided with a fine water mist nozzle (10).

2. The mobile water mist spray gun device for fire extinguishing of claim 1, wherein, The movable base (1) is a rigid metal box structure, and multiple universal casters (2) are evenly provided on the bottom of the movable base (1).

3. The mobile water mist spray gun device for fire extinguishing of claim 2, wherein, The movable base (1) is equipped with a braking device, which is used to brake the universal pulley (2).

4. The mobile water mist spray gun device for fire extinguishing of claim 1, wherein, It also includes a control system and a power supply device. The control system is electrically connected to the water pump (6). The control system is used to control the start and stop of the water pump (6). The power supply device is electrically connected to the control system and the water pump (6) and supplies power to them.

5. The mobile water mist spray gun device for fire extinguishing of claim 1, wherein, The spray gun (3) is detachably mounted on the movable base (1).

6. A mobile fine water mist spray gun device for fire extinguishing according to claim 1, characterized in that, The spray gun (3) is provided with a control handle (12), which is located at the end of the spray gun (3) away from the telescopic spray gun rod (11). The control handle (12) is used to control the start and stop of the spray gun (3).

7. The mobile water mist spray gun device for fire extinguishing of claim 4, wherein, The power supply device uses a rechargeable battery pack (8).

8. The mobile water mist spray gun device for fire extinguishing of claim 4, wherein, A control valve (7) is provided between the water pump (6) and the water pipe reel (9). The control valve (7) is electrically connected to the control system. The control system adjusts the flow rate of the water pump (6) by controlling the control valve (7). The control valve (7) is electrically connected to the power supply device.

9. The mobile water mist spray gun device for fire extinguishing of claim 8, wherein, The control valve (7) is an electromagnetic control valve.