CN219921922U - Fire-fighting device - Google Patents

Abstract

The utility model relates to the technical field of fire-fighting equipment, and provides a fire-fighting fire-extinguishing device, which comprises a base and a fire-extinguishing mechanism, wherein the fire-extinguishing mechanism comprises a supporting mechanism, a main water gun and a sprayer, the main water gun is detachably connected with the supporting mechanism, the sprayer is positioned on the supporting mechanism, the base comprises a bottom plate, a handle and a pair of wheels, the two wheels are respectively and rotatably connected with two sides of the bottom plate, the handle is positioned on the bottom plate, the fire-extinguishing mechanism is positioned on the bottom plate, a water curtain can be formed in front of the fire-extinguishing device through the sprayer, the temperature of a fire-extinguishing person and the surrounding of the fire-extinguishing device is reduced, and the front fire-extinguishing operation surface is conveniently opened, and an internal attack fire-extinguishing rescue channel is conveniently opened.

Description

Fire-fighting device

Technical Field

The utility model relates to the technical field of fire-fighting equipment, in particular to a fire-fighting device.

Background

Fire water cannon is the fire extinguishing apparatus that uses water as the medium, and the long-range fire extinguishing apparatus that puts out a fire, and common fire water cannon includes automatic scanning water-jet high altitude water cannon, manual fire water cannon of solid and automatically controlled fire water cannon etc. above-mentioned fire water cannon is mostly fixed outside fire engine or house, and it is not very convenient when removing, can waste a large amount of manpowers and time, influences rescue efficiency.

The Chinese patent with the patent number of CN213159095U proposes a movable fire water monitor, which comprises a base, a plurality of universal wheels arranged at the bottom of the base, a push rod arranged on the side wall of the base and a gun barrel positioned on the base, and further comprises a bearing table for supporting the gun barrel, two support plates arranged on the bearing table and a support seat rotationally arranged between the opposite side walls of the two support plates, wherein the base is provided with a height adjusting component for driving the bearing table to lift, the side wall of the support plate is provided with an angle adjusting component for driving the support seat to rotate, the gun barrel is rotationally connected with the upper surface of the support seat, and the support seat is provided with a direction adjusting component for driving the gun barrel to rotate, so that the defect of the fixed fire water monitor on mobility is overcome.

However, in this technique, the firefighter needs to push the fire water monitor forward and open the inactivation work surface, and the closer to the fire source, the harder the fire is, the stronger the heat radiation is, and the higher the risk of injury to the firefighter is, so that the firefighter is not suitable for opening a fire extinguishing passage.

Disclosure of Invention

The utility model aims to provide a fire-fighting device, which can form a water curtain in front of the device through a sprayer to cool the fire fighters and the surrounding of the device, so that a front fire-fighting operation surface can be conveniently opened, and an internal attack fire-fighting rescue channel can be conveniently opened.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a fire-fighting fire extinguishing device, which comprises a base and a fire extinguishing mechanism, wherein the fire extinguishing mechanism comprises a supporting mechanism, a main water gun and a sprayer, the main water gun is detachably connected with the supporting mechanism, the sprayer is positioned on the supporting mechanism, the base comprises a bottom plate, a handle and a pair of wheels, the two wheels are respectively and rotatably connected with two sides of the bottom plate, the handle is positioned on the bottom plate, and the fire extinguishing mechanism is positioned on the bottom plate.

Further, in the utility model, the supporting mechanism comprises a bearing column, a connecting column and a Y-shaped frame, one end of the bearing column is connected with the bottom plate, the other end of the bearing column is connected with the connecting column, the I-shaped end of the connecting column and the I-shaped end of the Y-shaped frame are rotationally connected through a shaft sleeve, a water inlet is formed in the bearing column, a first fixed valve connected with a water hose is arranged at the water inlet, cavities are formed in the bearing column, the connecting column and the Y-shaped frame and communicated with the water inlet of the sprayer, the Y-shaped frame is communicated with the water inlet of the sprayer, and because the water hose can have stronger impact force after passing through water, if the water hose is directly connected with the sprayer, the water hose can not only obstruct the working space of a firefighter, but also easily form a potential safety hazard due to the impact force, therefore, the first fixed valve connected with the water hose is arranged on the bearing column and is positioned at the bottom of the supporting mechanism, the working space of the firefighter is not influenced, meanwhile, two first fixed valves are arranged on the bearing column, and can be simultaneously connected with two water hoses, so that a large water curtain can be formed, the device can cool down the surrounding protection range, better protection effect can be realized for places with strong fire and smoke, the fire and strong protection effect, the situation can be realized, the base can be adjusted by 360 degrees by rotating the Y-shaped frame through the connecting frame, and the base can be adjusted according to the situation that the situation can be 360 degrees.

Furthermore, in the utility model, two sprayers are respectively communicated with one end of the Y-shaped frame far away from the connecting column, and as the main water gun is arranged in the middle of the device, the sprayers can only be arranged on one side of the main water gun, but the protection effect of the water curtain on the other side of the main water gun is reduced, so that the frame body for fixing the sprayers is arranged as the Y-shaped frame, one sprayer can be arranged on two sides of the V-shaped end, the two sprayers are started at the same time, the protection range covered by the water curtain is enlarged, and meanwhile, the two water curtains are overlapped, so that the effects of dust fall, smoke blocking and protection and cooling are better, and a fire fighter can concentrate on opening an internal attack fire extinguishing channel.

Furthermore, in the utility model, the water quantity regulating valve is arranged at the water outlet of the main water gun, the water inlet of the main water gun is provided with the second fixed valve connected with the other water hose, and by arranging the water quantity regulating valve, the water column and the water flow intensity can be regulated according to the site situation when the main water gun is used, so that the water flow distance can be regulated, the fire source can be accurately extinguished, the water quantity regulating valve can also regulate the direct current water flow into a spraying state, the water gun is matched with the sprayer to be used together, the water gun has good variability and functionality, the fire extinguishing efficiency is improved, and the main water gun is detachably connected with the supporting mechanism, so that the water in the main water gun is not sourced from the supporting mechanism, but is independently provided with the water inlet and the second fixed valve at the tail part of the main water gun, and is independently connected with the water hose to be used, so that the design is used for avoiding the water pressure shortage caused by sharing the water hose with the sprayer, the fire extinguishing work is influenced by reducing the water flow strength of the main water gun, and simultaneously, the main water gun can not be separated from the supporting mechanism, and the main water gun can be independently used for supplying water, the fire extinguishing work, and the main water gun has enough water pressure, and the fire extinguishing work can be ensured.

Further, in the present utility model, the first and second fixed valves are both applicable to a water hose having a diameter of 65mm, and the first and second fixed valves are set to have an inner diameter of 65mm, so that the first and second fixed valves can be applied to a water hose having a diameter of 65mm, and the fire hose is set to have a diameter of 65mm because the fire hose is divided into four types of 50, 65, 80 or 75 and 90mm, but the fire hose is usually used to have a diameter of 65mm, so that the fire hose can be applied to a water hose in most areas.

Further, in the utility model, the Y-shaped frame is provided with the fixing mechanism, the fixing mechanism comprises a rotating shaft, a hoop and a pair of supporting frames, two ends of the rotating shaft are respectively connected with the two supporting frames in a rotating way, the two supporting frames are connected with the Y-shaped frame, the hoop is positioned on the rotating shaft and is fixedly connected with the rotating shaft, the main water gun is detachably connected with the hoop, the main water gun can be fixed at the middle position of the V-shaped end of the Y-shaped frame by arranging the fixing mechanism, the hoop is used for fixing the main water gun, the hoop is connected with the rotating shaft, so that the pitching angle of the main water gun can be adjusted, and the hoop can be fixed and opened through bolts according to different fire source positions during use, so that the detachable structure of the main water gun and the fixing mechanism is realized.

Further, in the utility model, the handle comprises a cross rod and a pair of telescopic rods, two ends of the cross rod are respectively connected with one ends of the two telescopic rods, the other ends of the two telescopic rods are connected with the bottom plate, the device can be conveniently moved by arranging the handle, the handle can possibly affect a water gun because the Y-shaped frame can horizontally rotate by 360 degrees, water can be sprayed onto the handle when the angle is low, the rods on two sides of the handle are arranged into the telescopic rods, when the device is moved, the handle is lifted to a position height suitable for a firefighter to grasp, the device can be conveniently moved, and after the device is moved to a target position, the telescopic rods are telescopic, and the height of the handle is reduced, so that the use of the water gun is not affected.

Furthermore, in the utility model, the bottom plate is also provided with supporting legs at the bottom of one side far away from wheels, most movable fire water cannons in the prior art adopt the design of universal wheels, but the reverse wheels are small in size, are blocked frequently during movement, are not smooth, are especially critical in the process of fire extinguishment, and can rapidly move to a target position, and the universal wheels are more forceful when aiming at uneven terrains, so that the utility model is not very suitable, and the utility model adopts rubber wheels arranged at two sides, can flexibly pass through various terrains through handles, and can not be blocked, but only is provided with one wheel at two sides for the convenience of movement and turning, so that the supporting legs are arranged at the bottom of one side far away from the wheels, and are used for preventing the movement of a base caused by the impact force of the water cannon during fire extinguishment at the target position, so that the fixing effect of the device at the target position is better.

The utility model has at least the following advantages or beneficial effects:

1. through setting up the atomizer and can form the water curtain around the device, can be applicable to smog dense, intensity of a fire and carry out long-time fight under the heat radiation condition, provide protection and cooling effect for the firefighter, help the continuous incessant of putting out a fire.

2. Through the combined action of atomizer and main squirt, can remove the device to the position that is close to the source of fire, utilize the atomizer to form the water curtain and cool down the protection, utilize the main squirt to open up the interior fire extinguishing rescue passageway simultaneously, improve the efficiency of putting out a fire rescue.

3. Through setting up base and wheel to main squirt detachable connection, the Y type frame can 360 horizontal rotations, has increased the mobility of this device, can make the adjustment according to the scene condition, has good strain and suitability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a fire extinguishing device according to the present utility model;

FIG. 2 is a schematic diagram of the overall structure of a fire extinguishing device according to the present utility model;

fig. 3 is a schematic diagram of a fire extinguishing mechanism of the fire extinguishing apparatus according to the present utility model;

fig. 4 is a schematic diagram of a fire extinguishing mechanism of the fire extinguishing apparatus according to the present utility model;

fig. 5 is a schematic diagram of a fire extinguishing mechanism of the fire extinguishing apparatus according to the present utility model.

Icon: 100-base; 110-a bottom plate; 120-handle; 121-a cross bar; 122-telescoping rod; 130-wheels; 140-supporting legs; 200-a fire extinguishing mechanism; 210-a support mechanism; 211-a support column; 212-connecting columns; 213-Y-shaped frame; 214-a first stationary valve; 220-main water gun; 221-a second fixed valve; 230-sprayer; 240-a securing mechanism; 241-a support frame; 242-anchor ear; 243-rotating shaft.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, fig. 1 is a schematic diagram illustrating an overall structure of an embodiment of the present utility model; FIG. 2 is a schematic diagram of the overall structure of a second embodiment of the present utility model; FIG. 3 is a schematic diagram of a fire extinguishing mechanism 200 according to an embodiment of the present utility model; FIG. 4 is a schematic diagram of a fire extinguishing mechanism 200 according to an embodiment of the present utility model; fig. 5 shows a third schematic structural view of a fire extinguishing mechanism 200 according to an embodiment of the present utility model.

The embodiment provides a fire extinguishing device, which comprises a base 100 and an extinguishing mechanism 200, wherein the extinguishing mechanism 200 comprises a supporting mechanism 210, a main water gun 220 and a sprayer 230, the main water gun 220 is detachably connected with the supporting mechanism 210, the sprayer 230 is positioned on the supporting mechanism 210, the base 100 comprises a bottom plate 110, a handle 120 and a pair of wheels 130, the two wheels 130 are respectively and rotatably connected with two sides of the bottom plate 110, the handle 120 is positioned on the bottom plate 110, and the extinguishing mechanism 200 is positioned on the bottom plate 110.

It can be appreciated that, compared with the prior art, the sprayer 230 is added in the utility model, a water curtain is formed in front of the device, when a fire fighter opens up a rescue channel and a fire extinguishing operation surface, the fire fighter is protected, the effects of reducing heat radiation and reducing temperature are achieved, and the device is provided with the base 100 and the wheels 130, so that long-time combat can be performed under the conditions of strong smoke, strong fire and strong heat radiation, the water curtain can effectively reduce the damage of dense smoke and heat radiation to the fire fighter, the power-assisted fire extinguishing is continuous and uninterrupted, the maneuverability of the device is increased through the base 100 and the wheels 130, fire extinguishing can be performed in a targeted manner, compared with the prior art, the fire extinguishing can be performed more deeply near a fire source, meanwhile, the main water gun 220 can realize separation, and has stronger stress according to the on-site conditions.

It should be noted that, the sprayer 230 is a common technical means of a spray-type fire extinguisher in the prior art, and the structure and connection thereof are various, and those skilled in the art can select an applicable structure and connection without creative work, so as to meet the spraying effect, and the utility model is not limited thereto.

In the embodiment shown in fig. 1-5, the supporting mechanism 210 includes a supporting column 211, a connecting column 212 and a Y-shaped frame 213, one end of the supporting column 211 is connected with the bottom plate 110, the other end is connected with the connecting column 212, the connecting column 212 is rotatably connected with the I-shaped end of the Y-shaped frame 213 through a shaft sleeve, a water inlet is formed in the supporting column 211, a first fixing valve 214 connected with a water hose is formed at the water inlet, and cavities and communication are formed in the supporting column 211, the connecting column 212 and the Y-shaped frame 213, and the Y-shaped frame 213 is also communicated with the water inlet of the sprayer 230.

It can be appreciated that, because the water hose will have a strong impact force after passing through water, if it is directly connected with the sprayer 230, not only the operation space of the fire fighter will be hindered, but also the potential safety hazard will be easily formed due to the impact force, therefore, the first fixing valve 214 for connecting the water hose is arranged on the supporting column 211 and is located at the bottom of the supporting mechanism 210, so that the operation space of the fire fighter will not be affected, meanwhile, two first fixing valves 214 are arranged on the supporting column 211 according to the present utility model, and two water hoses can be simultaneously connected, thereby forming a large water curtain, improving the protection range of the device against surrounding cooling, having a better protection effect against strong fire and smoke, and realizing 360 ° rotation of the Y-shaped frame 213 relative to the base 100 by the rotation of the shaft sleeve between the connecting column 212 and the Y-shaped frame 213, increasing the maneuverability of the device, and increasing the fire extinguishing efficiency and safety factor according to the scene situation.

It should be noted that, the above-mentioned shaft sleeve is a common technical means for rotational connection in the prior art, and the structure and connection thereof have various forms, so that those skilled in the art can select an applicable structure and connection mode without creative work, so that the rotational connection between the Y-shaped frame 213 and the connection column 212 can be satisfied, which is not limited herein.

It should be further noted that the first fixing valve 214 is a common technical means for fixing between the fire monitor and the water hose in the prior art, and a person skilled in the art can do so without any creative work, which is not limited herein.

In the embodiment shown in fig. 1-5, there are two sprayers 230, and two sprayers 230 are respectively connected to the end of the Y-frame 213 away from the connecting post 212.

It can be understood that, because the main water gun 220 is arranged in the middle of the device, the sprayer 230 can only be arranged on one side of the main water gun 220, but the water curtain protection effect on the other side of the main water gun 220 is reduced, so that the frame body for fixing the sprayer 230 is arranged as the Y-shaped frame 213, one sprayer 230 can be arranged on both sides of the V-shaped end, the two sprayers 230 can be started at the same time, the protection range covered by the water curtain is increased, and meanwhile, the two water curtains are overlapped, so that the effects of dust fall, smoke blocking, protection and cooling are better, and a firefighter can concentrate on opening an internal attack fire extinguishing channel.

In the embodiment shown in fig. 1-5, a water quantity adjusting valve is disposed at the water outlet of the main water gun 220, and a second fixed valve 221 connected with another water hose is disposed at the water inlet of the main water gun 220.

It can be appreciated that, by setting the water quantity adjusting valve, when the main water gun 220 is used, the water column and the water flow intensity can be adjusted according to the site situation, so as to adjust the water flow distance, and accurately extinguish the fire to the fire source, the water quantity adjusting valve can also adjust the direct current water flow into a spraying state, and the main water gun 220 is matched with the sprayer 230 to be used together, so that the water gun 220 has good flexibility and functionality, and the fire extinguishing efficiency is improved.

It should be noted that, the above water quantity adjusting valve is a conventional technical means for adjusting the flow of the fire monitor in the prior art, and the structure and connection thereof are various, so that those skilled in the art can select an applicable structure and connection mode without creative work, thereby satisfying the flow adjustment of the main water gun 220 and the switching between the direct current type water column and the spray type water column, and the present utility model is not limited thereto.

It should be noted that, the second fixed valve 221 is similar to the first fixed valve 214, and is a common technical means for fixing between the fire monitor and the water hose in the prior art, and a person skilled in the art can complete the fixing without any creative work, which is not limited herein.

In an embodiment, the first fixed valve 214 and the second fixed valve 221 are suitable for a water hose with a diameter of 65mm.

It will be appreciated that by setting the first and second fixed valves 214 and 221 to have an internal diameter of 65mm, it is possible to adapt to a 65mm hose, since fire hoses are divided into four categories by diameter 50, 65, 80 or 75, 90mm, but common fire hoses are 65mm, so in order to be able to adapt to most areas of hose, it is set to 65mm.

As shown in fig. 1-5, in the embodiment, the Y-shaped frame 213 is provided with a fixing mechanism 240, the fixing mechanism 240 includes a rotating shaft 243, a hoop 242 and a pair of supporting frames 241, two ends of the rotating shaft 243 are respectively connected with the two supporting frames 241 in a rotating manner, the two supporting frames 241 are connected with the Y-shaped frame 213, the hoop 242 is located on the rotating shaft 243 and is fixedly connected with the rotating shaft 243, and the main water gun 220 is detachably connected with the hoop 242.

It can be appreciated that, by setting the fixing mechanism 240, the main water gun 220 can be fixed at the middle position of the V-shaped end of the Y-shaped frame 213, the anchor ear 242 for fixing the main water gun 220 is connected to the rotating shaft 243, so that the pitching angle of the main water gun 220 can be adjusted, the angle can be adjusted according to different fire source positions, and the anchor ear 242 can be fixed and opened by bolts, thus realizing the detachable structure of the main water gun 220 and the fixing mechanism 240.

It should be noted that, the hoop 242 is a common technical means of a fixing device in the prior art, and the structure and connection of the hoop are various, so that a person skilled in the art can select an applicable structure and connection mode without creative work, and the hoop 242 can be used for detachable connection of the main gun 220, which is not limited herein.

When the fire-fighting device is used, a 65mm water hose is connected with the supporting column 211 through the first fixed valve 214, the water hose is connected with the main water gun 220 through the second fixed valve 221, the water valve can be opened after the water hose is communicated, the sprayer 230 starts to work, a water curtain is formed in front of the fire-fighting device, a fire fighter can push the fire-fighting device to enter a fire scene through the handle 120, a proper position is selected for opening up a rescue channel and a working face, the fire-fighting device can continue to spray according to the field condition, and the main water gun 220 can be detached at the moment, and fire can be extinguished by hand.

Example 2

Referring to fig. 1-2, in the embodiment 1, the handle 120 includes a cross bar 121 and a pair of telescopic rods 122, two ends of the cross bar 121 are respectively connected to one ends of the two telescopic rods 122, and the other ends of the two telescopic rods 122 are respectively connected to the bottom plate 110.

It can be appreciated that the handle 120 can be conveniently moved to the device by arranging the handle 120, because the Y-shaped frame 213 can horizontally rotate by 360 degrees, the handle 120 can possibly affect the water gun, when the angle is low, water can be sprayed onto the handle 120, therefore, the rods on two sides of the handle 120 are arranged to be telescopic rods 122, when the device is moved, the handle 120 is lifted to a position height suitable for being held by a firefighter, the device is conveniently moved, after the device is moved to a target position, the telescopic rods 122 are telescopic, and the height of the water gun is reduced, so that the use of the water gun is not affected.

It should be noted that, the above-mentioned telescopic rod 122 is a common technical means of a telescopic structure in the prior art, its structure and connection have various forms, and those skilled in the art can select an applicable structure and connection mode without creative work, so as to satisfy the telescopic effect of the telescopic rod 122, which is not limited herein.

Example 3

Referring to fig. 1-2, in addition to the above embodiment, a supporting leg 140 is further disposed at the bottom of the side of the bottom plate 110 away from the wheel 130.

It will be appreciated that in the prior art, most mobile fire water cannons use a design of universal wheels, but the reverse wheels are small in size, and are blocked frequently during movement, which is not very smooth, but during fire extinguishing, it is particularly critical that the universal wheels can move quickly to a target position, and the universal wheels are more forceful when aiming at uneven terrains, so that the universal wheels are not very suitable, while the utility model adopts rubber wheels arranged at two sides, can flexibly pass through various terrains through the handles 120, and can not be blocked, but for convenience of movement and turning, only one wheel 130 at each of the two sides is arranged, so that the supporting legs 140 are arranged at the bottom of one side far from the wheels 130, and the utility model aims to prevent the movement of the base 100 caused by the impact force of a water gun during fire extinguishing at the target position, so that the fixing effect of the device at the target position is better.

In summary, the embodiment of the utility model provides a fire extinguishing device, which comprises a base 100 and a fire extinguishing mechanism 200, wherein the fire extinguishing mechanism 200 comprises a supporting mechanism 210, a main water gun 220 and a sprayer 230, the main water gun 220 is detachably connected with the supporting mechanism 210, the sprayer 230 is positioned on the supporting mechanism 210, the base 100 comprises a bottom plate 110, a handle 120 and a pair of wheels 130, the two wheels 130 are respectively and rotatably connected with two sides of the bottom plate 110, the handle 120 is positioned on the bottom plate 110, the fire extinguishing mechanism 200 is positioned on the bottom plate 110, a water curtain can be formed around the device by arranging the sprayer 230, the fire extinguishing device can be suitable for long-time combat under the conditions of smoke concentration, fire intensity and heat radiation, the protection and cooling effect are provided for firefighters, the auxiliary fire extinguishing is continuous uninterrupted, the device can be moved to a position close to a fire source by the combined effect of the sprayer 230 and the main water gun 220, the cooling protection is formed by utilizing the sprayer 230, meanwhile, the efficiency of the fire extinguishing device is improved by utilizing the inner attack of the main water gun 220, the rescue device is provided, the base 100 and the wheels 130 are detachably connected, the Y-shaped rotating frame 213 can be used for improving the flexibility of the fire extinguishing device, and the field, and the adaptability is good according to the situation is adjusted.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The fire-fighting fire-extinguishing device is characterized by comprising a base and a fire-extinguishing mechanism, wherein the fire-extinguishing mechanism comprises a supporting mechanism, a main water gun and a sprayer, the main water gun is detachably connected with the supporting mechanism, and the sprayer is positioned on the supporting mechanism;

the base comprises a bottom plate, a handle and a pair of wheels, wherein the two wheels are respectively connected with two sides of the bottom plate in a rotating way, the handle is positioned on the bottom plate, and the fire extinguishing mechanism is positioned on the bottom plate.

2. The fire extinguishing device according to claim 1, wherein the supporting mechanism comprises a bearing column, a connecting column and a Y-shaped frame, one end of the bearing column is connected with the bottom plate, the other end of the bearing column is connected with the connecting column, and the connecting column is rotatably connected with the I-shaped end of the Y-shaped frame through a shaft sleeve; the bearing column is provided with a water inlet, a first fixed valve connected with a water belt is arranged at the water inlet, the bearing column, the connecting column and the Y-shaped frame are internally provided with cavities and are communicated, and the Y-shaped frame is also communicated with the water inlet of the sprayer.

3. A fire extinguishing apparatus according to claim 2, wherein there are two sprayers, and two sprayers are respectively connected to one end of the Y-shaped frame away from the connecting column.

4. A fire extinguishing apparatus according to claim 2, wherein the water outlet of the main water gun is provided with a water quantity regulating valve, and the water inlet of the main water gun is provided with a second fixed valve connected with another water hose.

5. A fire fighting device according to claim 4, wherein the first and second fixed valves are each adapted for a water hose of 65mm diameter.

6. The fire extinguishing device according to claim 2, wherein the Y-shaped frame is provided with a fixing mechanism, the fixing mechanism comprises a rotating shaft, a hoop and a pair of supporting frames, two ends of the rotating shaft are respectively connected with the two supporting frames in a rotating mode, the two supporting frames are connected with the Y-shaped frame, the hoop is located on the rotating shaft and is fixedly connected with the rotating shaft, and the main water gun is detachably connected with the hoop.

7. The fire extinguishing device according to claim 1, wherein the handle comprises a cross bar and a pair of telescopic bars, both ends of the cross bar are respectively connected with one ends of two telescopic bars, and the other ends of the two telescopic bars are respectively connected with the bottom plate.

8. A fire fighting device according to claim 1, wherein the bottom of the side of the bottom plate remote from the wheels is further provided with support legs.