Adjustable miniature fire fighting truck for fire fighting and extinguishment

Abstract

The invention discloses an adjustable miniature fire fighting truck for fire fighting, and relates to the technical field of fire fighting. The adjustable miniature fire fighting truck comprises a fire fighting truck body and a water spraying mechanism, the water spraying mechanism comprises a fire water monitor and a hydraulic cylinder, a water spraying opening in the surface of the hydraulic cylinder is fixedly connected with a conical hopper, a flow deflector is fixedly connected to the conical surface of an inner cavity of the conical hopper, and the end, away from the inner side face of the conical hopper, of the flow deflector is fixedly connected with a conical cap; a water conveying assembly is installed at the end, away from the conical hopper, of the fire water monitor and comprises a bracket and a water hose, the top end of the water hose communicates with a liquid inlet in the bottom end of the fire water monitor, a protection spring is fixedly connected to the end, away from the fire fighting truck body, of the bracket, and a supporting rod is fixed to the spiral face of the inner side of the protection spring. The top end of the supporting rod is fixedly connected with a positioning lantern ring, the adjustable purpose is achieved, the angle can be adjusted, the fire extinguishing range is wide, the water hose is protected and is not prone to damage, and fire extinguishing is rapid, convenient, safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting, and specifically to an adjustable micro fire truck for fire fighting. Background Art

[0002] Fire fighting is an important part of urban and forest fire prevention and control. At many fire rescue sites, it is necessary for firefighters to hold the spray head and aim it at the fire source to achieve the fire extinguishing effect. Since the firefighters are too close to the fire source, in many cases, the lives of firefighters are endangered. Fire fighting is to pump water from the water tank by a fire pump and increase the pressure, and then spray it onto the combustibles through a water hose and a water gun. The water absorbs heat and is converted into water vapor, reducing the temperature of the combustibles below the ignition point, thereby stopping the combustion. For example, when extinguishing a building fire, spraying water can cool the building components and the burning items to prevent the spread of the fire. A micro fire truck is a newly developed new energy fire truck, which has the characteristics of small size, flexibility, energy conservation and environmental protection, and plays an important role in modern fire fighting work. With the progress of technology, in more and more fire fighting fields, micro fire trucks with fire extinguishing functions have been gradually used for on-site fire extinguishing operations to reduce the probability of firefighters being injured in the fire.

[0003] Currently, traditional fire trucks are relatively large, which are inconvenient for extinguishing fires at the fire scenes in small spaces. Large fire trucks have great limitations, and when spraying water with a water gun to extinguish fires, it is necessary for firefighters to hold the water gun and aim it at the fire source, which is inconvenient for automatic adjustment. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0005] An adjustable micro fire truck for fire fighting, comprising:

[0006] A fire truck body, and an auxiliary mechanism installed at the bottom of the fire truck body;

[0007] A water spraying mechanism, which is used to extinguish the fire source at the fire scene, and the water spraying mechanism is installed on the top of the fire truck body;

[0008] Among them, the water spraying mechanism includes a fire fighting water cannon and a hydraulic cylinder. The outer circular surface of the fire fighting water cannon is hinged to the top of the fire truck body. The hydraulic cylinder is hinged at the side of the top of the fire truck body. The telescopic end of the hydraulic cylinder is hinged to the bottom of the fire fighting water cannon. A conical hopper is fixedly connected to the water spraying port on the surface of the hydraulic cylinder. A guide vane is fixedly connected to the conical surface inside the conical hopper. One end of the guide vane away from the inner side of the conical hopper is fixedly connected to a conical cap. A water conveying component is installed at one end of the fire fighting water cannon away from the conical hopper. By extending the telescopic end of the hydraulic cylinder, an upward driving force can be applied to the fire fighting water cannon, and with the support of the fire truck body, the fire fighting water cannon can rotate clockwise to adjust the angle, so as to adjust the angle by rotating the fire fighting water cannon and increase the range of water spraying for fire fighting. And by contracting the telescopic end of the hydraulic cylinder, a downward pulling force can be applied to the fire fighting water cannon, and the fire fighting water cannon can be rotated counterclockwise to adjust and reset.

[0009] The water conveying component includes a bracket and a water hose. The bracket is fixedly connected to the tail of the fire truck body. The top end of the water hose is communicated with the liquid inlet at the bottom end of the fire fighting water cannon. A protective spring is fixedly connected to one end of the bracket away from the fire truck body. A support rod is fixed to the spiral surface inside the protective spring. The top end of the support rod is fixedly connected to a positioning collar. The water hose passes through the center of the positioning collar. By passing the water hose through the center of the protective spring, the end of the water hose close to the fire truck body is inside the protective spring. When a heavy object falls at the fire scene, the elastic support of the protective spring on the water hose can be used to play a buffering and protective role, reducing the pressing of the heavy object on the water hose.

[0010] Preferably, both the fire fighting water cannon and the hydraulic cylinder are inclinedly installed. The guide vane is inclinedly installed. The conical cap is installed in the middle inside the conical hopper. The water body is conveyed by the water hose and sent into the fire fighting water cannon. And by installing the conical cap in the middle of the conical hopper through the guide vane, the water body passes through between the conical hopper and the conical cap and sprays outwards. And under the guiding action of the conical hopper, the sprayed water body presents an annular conical shape, so as to increase the coverage area of the sprayed water body and promote the extinguishing of the fire source.

[0011] By installing the guide vane inclinedly and the guide vanes are evenly distributed inside the conical hopper, the guide of the sprayed water body by the guide vane can be used to make the water body swirl and spray. The swirl can make the water flow form a rotating trend when spraying, increase the contact area between the water flow and the air, make the water easier to break into small water droplets, achieve a better atomization effect, so that the atomized water flow can more effectively absorb heat, cool the combustibles, and can, to a certain extent, isolate the air and inhibit combustion.

[0012] Preferably, the water hose passes through the middle of the inner cavity of the bracket. There are four positioning collar rings, and the four positioning collar rings are evenly distributed inside the protective spring. By passing the water hose through the middle of the bracket, the bracket supports the end of the water hose, so that the end of the water hose is not easily in contact with the ground. And the water hose passes through the center of the positioning collar ring and is supported by the support rod, avoiding direct contact between the water hose and the ground, so that the high temperature of the ground around the fire source will not damage the water hose, facilitating the continuous water delivery by the water hose and protecting the water hose.

[0013] Preferably, the auxiliary mechanism includes wheels and a linear driver. The wheels are rotatably installed at the bottom of the fire truck body. The linear driver is fixedly installed on the surface of the fire truck body by screws and at the end far from the bracket. A crawler is installed on the outer circumferential surface of the wheels. The output end of the linear driver is fixedly connected to a connecting beam. A toggle piece is fixedly connected to the side of the wheel surface. The toggle piece is arc-shaped. An obstacle cleaning component is installed at the middle of the connecting beam surface. By the rolling of the wheels, the crawler is driven to operate. And since the inner side surface of the crawler and the outer circumferential surface of the wheels are installed through meshing of teeth, the crawler and the wheels can move synchronously without easy slipping, facilitating the movement of the fire truck body towards the fire source. And due to the small volume of the fire truck body itself, it is convenient to extinguish fires at small-space fire scenes without being easily blocked, reducing the limitations.

[0014] Preferably, there are four wheels, and the four wheels are evenly installed at the bottom of the fire truck body. The inner side surface of the crawler and the outer circumferential surface of the wheels are installed through meshing of teeth. The linear driver is vertically installed. There are two linear drivers, and the two linear drivers are symmetrically installed along the connecting beam.

[0015] Preferably, the obstacle cleaning assembly includes a three-claw support member, which is fixedly connected to the middle of the surface of the connecting beam by bolts, and the three-claw support member is fixedly connected to a triangular pusher block at one end away from the connecting beam, and the two ends of the surface of the triangular pusher block are hinged with a plane swing plate, and the middle of the surface of the plane swing plate is fixedly connected with a tension spring, and the surface of the plane swing plate and one end away from the triangular pusher block are fixedly connected to a bent connecting rod, and the surface of the bent connecting rod and one end away from the plane swing plate are rollingly installed with a roller, so that the fire truck body as a whole is moved toward the fire source as the crawler runs. As the fire truck moves forward, the tip of the triangular pusher pushes the broken debris caused by burning at the fire scene to both sides. At the same time, when the wheels roll, they drive the toggle pieces to rotate in a circle. The toggle pieces contact the rollers, so that the bent connecting rods are pushed and the pushing force is applied to the flat swing plates, which can make the two symmetrical flat swing plates swing outward, and the tension springs are stretched. As a result, the swing of the flat swing plates pushes the broken debris to both sides, reducing the impact of debris on the overall movement of the equipment during crawler operation, and the overall equipment will not tilt or fall.

[0016] As the paddle is separated from the roller, the driving force on the roller disappears, and under the elastic tension of the tension spring, the flat swing plate rotates inward to reset, so as to continue the reciprocating swing.

[0017] Preferably, the tip of the triangular pusher block faces the side away from the connecting beam, there are two planar swing plates, and the two planar swing plates are symmetrically installed along the triangular pusher block.

[0018] Preferably, the tension spring is installed horizontally, the planar swing plate and the triangular pusher block are installed at the same height, there are two rollers, and the two rollers are installed symmetrically along the triangular pusher block.

[0019] Preferably, a support mechanism is installed on the surface of the fire truck body, and the support mechanism is installed directly below the fire hydrant. The support mechanism includes a square guide post, the surface of the square guide post is slidably installed inside the fire truck body, the square guide post penetrates the fire truck body and extends to its bottom, the top end of the square guide post is fixedly connected with an arc-shaped force-bearing plate, a reset elastic strip is fixedly connected between the bottom of the arc-shaped force-bearing plate and the top of the fire truck body, the bottom end of the square guide post is fixedly connected with a frustum-shaped base, and an anti-slip gasket is fixedly connected to the bottom of the frustum-shaped base. When the fire hydrant rotates clockwise to adjust the angle, the bottom end of the fire hydrant contacts the arc-shaped force-bearing plate, so that the arc-shaped force-bearing plate is subjected to a downward pressing force, and under the guiding action of the square guide post, the square guide post drives the arc-shaped force-bearing plate and the frustum-shaped base to move downward together, and the reset elastic strip is compressed, and the anti-slip gasket is used to contact the ground to increase the friction force and play an anti-slip role, so that the support points can be increased, and it is not easily affected by the reverse acting force of the water body ejected by the fire hydrant, making the whole fire truck body more stable.

[0020] Preferably, the square guide post is installed vertically, the arc-shaped force-bearing plate is installed directly below the fire hydrant, the reset elastic strip is arc-shaped, the anti-slip gaskets are evenly distributed at the bottom of the frustum-shaped base, and the material of the anti-slip gasket is rubber.

[0021] The present invention provides an adjustable micro fire truck for fire extinguishing. It has the following beneficial effects:

[0022] First, for the adjustable micro fire truck for fire extinguishing, by the elongation of the telescopic end of the hydraulic cylinder, an upward pushing force can be applied to the fire hydrant, and under the support of the fire truck body, the fire hydrant rotates clockwise to adjust the angle, so as to adjust the angle by rotating the fire hydrant and increase the range of water spraying for fire extinguishing. And by the contraction of the telescopic end of the hydraulic cylinder, a downward pulling force can be applied to the fire hydrant, so that the fire hydrant can rotate counterclockwise to adjust and reset.

[0023] Second, for the adjustable micro fire truck for fire extinguishing, a water hose is used to convey the water body, and the water body is conveyed into the fire hydrant. The conical cap is installed in the middle of the conical hopper through the guide vane, so that the water body passes through the gap between the conical hopper and the conical cap and sprays outwards. And under the guiding action of the conical hopper, the ejected water body presents an annular conical shape, so as to increase the coverage area of the ejected water body and promote the extinguishing of the fire source.

[0024] 3. The adjustable miniature fire truck for fire extinguishing uses guide plates that are installed at an angle, and the guide plates are evenly distributed inside the conical bucket. The guide plates can be used to guide the sprayed water, so that the water is sprayed out in a swirl. The swirl can make the water flow form a rotating posture when spraying, increase the contact area between the water flow and the air, make the water easier to break into small droplets, and achieve a better atomization effect, so that the atomized water flow can absorb heat more effectively, cool the combustion materials, and can isolate the air to a certain extent to suppress combustion.

[0025] 4. The adjustable mini fire truck for fire extinguishing passes the water hose through the center of the protective spring, so that the end of the water hose close to the fire truck body is inside the protective spring. When heavy objects fall at the fire scene, the protective spring can be used to elastically support the water hose, which has a buffering protection effect and reduces the pressure of the heavy objects on the water hose.

[0026] 5. The adjustable miniature fire truck for fire extinguishing uses a water hose to pass through the middle of the bracket, so that the bracket supports the end of the water hose, which makes it difficult for the end of the water hose to contact the ground. The water hose passes through the center of the positioning ring and is supported by the support rod to avoid direct contact between the water hose and the ground. The higher ground temperature around the fire source will not cause damage to the water hose, which facilitates the continuous transportation of water by the water hose and protects the water hose.

[0027] 6. The adjustable mini fire truck for fire extinguishing drives the tracks to run by the rolling of the wheels, and the inner side of the tracks is engaged with the outer circumference of the wheels through the engagement of the teeth, so that the tracks and the wheels can move synchronously, and it is not easy to slip, which makes it easy to drive the fire truck body to move toward the fire source. In addition, the small size of the fire truck body itself is used to facilitate fire extinguishing in a small space, and it is not easy to be obstructed, reducing limitations.

[0028] 7. The adjustable miniature fire truck for fire extinguishing uses the tip of the triangular pushing block to push the broken debris caused by burning at the fire scene to both sides. At the same time, the wheel drives the toggle piece to rotate and apply a pushing force to the roller, so that the two symmetrical plane swing plates can swing outward. The swing of the plane swing plates pushes the broken debris far to both sides, reducing the impact of the debris on the overall walking of the equipment during crawler operation. The whole equipment will not tilt or fall. As the pushing force on the roller disappears, and under the elastic tension of the tension spring, the plane swing plate rotates inward to reset, facilitating subsequent continuous reciprocating swing.

[0029] VIII. For the adjustable micro fire truck for fire extinguishing, the bottom end of the fire water cannon contacts the arc-shaped force-bearing plate, causing the arc-shaped force-bearing plate to receive a downward pressing force. Under the guiding action of the square guide post, the square guide post drives the arc-shaped force-bearing plate and the frustum-shaped base to move downward together. The reset elastic strip is compressed, and the anti-slip washer is used to contact the ground to increase the friction force and play an anti-slip role, thereby increasing the support points and making it less susceptible to the reverse acting force of the water ejected by the fire water cannon, making the overall fire truck body more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the overall adjustable micro fire truck for fire extinguishing of the present invention;

[0031] Figure 2 is a schematic structural diagram of the adjustable micro fire truck for fire extinguishing of the present invention seen from below;

[0032] Figure 3 is a schematic structural diagram of the connection structure between the water spraying mechanism and the fire truck body of the present invention;

[0033] Figure 4 is a schematic structural diagram of the overall water spraying mechanism of the present invention;

[0034] Figure 5 is a schematic structural diagram of the overall water delivery component of the present invention;

[0035] Figure 6 is a schematic structural diagram of the connection structure between the auxiliary mechanism and the fire truck body of the present invention;

[0036] Figure 7 is a schematic structural diagram of the overall obstacle cleaning component of the present invention;

[0037] Figure 8 is a schematic structural diagram of the connection structure between the support mechanism and the fire truck body of the present invention;

[0038] Figure 9 is a schematic structural diagram of the overall support mechanism of the present invention.

[0039] In the figure: 1, fire truck body; 2, auxiliary mechanism; 3, water spraying mechanism; 4, support mechanism; 21, wheels; 22, linear actuator; 23, crawler belt; 24, connecting beam; 25, toggling piece; 26, obstacle cleaning assembly; 261, three-claw support; 262, triangular pusher block; 263, planar swing plate; 264, tension spring; 265, bent connecting rod; 266, roller; 31, fire water monitor; 32, hydraulic cylinder; 33, conical hopper; 34, deflector; 35, conical cap; 36, water delivery assembly; 361, bracket; 362, hose; 363, protective spring; 364, support rod; 365, positioning collar; 41, square guide post; 42, arc-shaped stress plate; 43, reset elastic strip; 44, frustum-shaped base; 45, anti-slip washer. Detailed implementation mode

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In the first embodiment, as Figures 1 to 5 shown, the present invention provides a technical solution:

[0042] An adjustable micro fire truck for fire extinguishing, comprising:

[0043] A fire truck body 1 and an auxiliary mechanism 2 installed at the bottom of the fire truck body 1;

[0044] A water spraying mechanism 3 for extinguishing the fire source at the fire scene, and the water spraying mechanism 3 is installed on the top of the fire truck body 1;

[0045] Among them, the water spraying mechanism 3 includes a fire fighting water cannon 31 and a hydraulic cylinder 32. The outer circumferential surface of the fire fighting water cannon 31 is hinged to the top of the fire fighting vehicle body 1. The hydraulic cylinder 32 is hinged to the side of the top of the fire fighting vehicle body 1. The telescopic end of the hydraulic cylinder 32 is hinged to the bottom of the fire fighting water cannon 31. A conical hopper 33 is fixedly connected to the water spraying port on the surface of the hydraulic cylinder 32. A guide vane 34 is fixedly connected to the conical surface inside the conical hopper 33. One end of the guide vane 34 away from the inner side of the conical hopper 33 is fixedly connected to a conical cap 35. A water delivery component 36 is installed at one end of the fire fighting water cannon 31 away from the conical hopper 33. When the staff starts the hydraulic cylinder 32 to work, by using the elongation of the telescopic end of the hydraulic cylinder 32, an upward driving force can be applied to the fire fighting water cannon 31, and with the support of the fire fighting vehicle body 1, the fire fighting water cannon 31 can be rotated clockwise to adjust the angle, so as to use the rotation of the fire fighting water cannon 31 to adjust the angle and increase the range of water spraying for fire fighting. Moreover, by contracting the telescopic end of the hydraulic cylinder 32, a downward pulling force can be applied to the fire fighting water cannon 31, so that the fire fighting water cannon 31 rotates counterclockwise to adjust and reset.

[0046] Both the fire fighting water cannon 31 and the hydraulic cylinder 32 are inclinedly installed. The guide vane 34 is inclinedly installed. The conical cap 35 is installed in the middle inside the conical hopper 33. By using the inclined installation of the guide vane 34 and the guide vanes 34 being evenly distributed inside the conical hopper 33, the guide of the sprayed water body by the guide vanes 34 can be utilized, so that the water body sprays out in a swirling manner. The swirl can make the water flow form a rotating trend when spraying out, increase the contact area between the water flow and the air, make the water more easily broken into small water droplets, and achieve better atomization for fire extinguishing and absorb the temperature around the fire source.

[0047] The water delivery component 36 is used to convey the water body to the inside of the fire fighting water cannon 31. By using the conical cap 35 installed in the middle of the conical hopper 33 through the guide vane 34, the water body passes through between the conical hopper 33 and the conical cap 35 and sprays out to the outside. And under the guiding action of the conical hopper 33, the sprayed water body presents an annular conical shape, increasing the coverage area of the sprayed water body to extinguish the fire source.

[0048] The water delivery component 36 includes a bracket 361 and a water hose 362. The bracket 361 is fixedly connected to the tail of the fire fighting vehicle body 1. The top end of the water hose 362 is communicated with the liquid inlet at the bottom end of the fire fighting water cannon 31. One end of the bracket 361 away from the fire fighting vehicle body 1 is fixedly connected with a protective spring 363. A support rod 364 is fixed on the spiral surface inside the protective spring 363. The top end of the support rod 364 is fixedly connected with a positioning collar 365. The water hose 362 passes through the center of the positioning collar 365. By passing the water hose 362 through the center of the protective spring 363, one end of the water hose 362 close to the fire fighting vehicle body 1 is located inside the protective spring 363. When a heavy object falls at the fire scene, the elastic support of the protective spring 363 for the water hose 362 can be utilized to reduce the pressing of the heavy object on the water hose 362.

[0049] The water hose 362 passes through the middle of the inner cavity of the bracket 361. There are four positioning collar rings 365, and the four positioning collar rings 365 are evenly distributed inside the protective spring 363.

[0050] By passing the water hose 362 through the middle of the bracket 361, the bracket 361 supports the end of the water hose 362, so that the end of the water hose 362 is not easily in contact with the ground. And the water hose 362 passes through the center of the positioning collar ring 365 and is supported by the support rod 364, avoiding direct contact between the water hose 362 and the ground. The relatively high temperature of the ground around the fire source will not damage the water hose 362, and the water hose 362 can continuously convey water.

[0051] Second embodiment, on the basis of the first embodiment, please refer to Figures 1 to 7 as shown in

[0052] The auxiliary mechanism 2 includes a wheel 21 and a linear driver 22. The wheel 21 is rotatably installed at the bottom of the fire truck body 1. The linear driver 22 is fixedly installed on the surface of the fire truck body 1 by screws and at the end far from the bracket 361. A crawler 23 is installed on the outer circumferential surface of the wheel 21. The output end of the linear driver 22 is fixedly connected with a connecting beam 24. A baffle cleaning component 26 is installed at the middle of the surface of the wheel 21. By the rolling of the wheel 21, the crawler 23 is driven to operate. And by the engagement installation of the inner side surface of the crawler 23 and the outer circumferential surface of the wheel 21 through teeth, the crawler 23 and the wheel 21 can move synchronously, and it is not easy to slip, facilitating the movement of the fire truck body 1 towards the fire source. And due to the small volume of the fire truck body 1 itself, it is convenient to extinguish fires at small-space fire scenes.

[0053] There are four wheels 21, and the four wheels 21 are evenly installed at the bottom of the fire truck body 1. The inner side surface of the crawler 23 and the outer circumferential surface of the wheel 21 are installed through tooth engagement. The linear driver 22 is installed vertically. There are two linear drivers 22, and the two linear drivers 22 are symmetrically installed along the connecting beam 24.

[0054] The obstacle clearing assembly 26 includes a three-claw support member 261, which is fixedly connected to the middle part of the surface of the connecting beam 24 by bolts. The three-claw support member 261 is fixedly connected to a triangular pusher block 262 at one end away from the connecting beam 24. The two ends of the surface of the triangular pusher block 262 are hinged with a plane swing plate 263. The middle part of the surface of the plane swing plate 263 is fixedly connected with a tension spring 264. The surface of the plane swing plate 263 and one end away from the triangular pusher block 262 are fixedly connected to a bent connecting rod 265. The surface of the bent connecting rod 265 and one end away from the plane swing plate 263 are rollingly installed with a roller 266. As the crawler 23 runs, the fire truck body 1 is moved as a whole to the fire source. The staff starts the linear drive 22 to work, and uses the output end of the linear drive 22 to drive the connecting beam 24 to move downward, so that the obstacle clearing assembly 26 is driven downward as a whole. When the bottom of the triangular pusher block 262 is close to the ground, the linear drive 22 can be stopped. As the toggle piece 25 separates from the roller 266, the pushing force on the roller 266 disappears, and under the elastic tension of the tension spring 264, the flat swing plate 263 rotates inwardly to reset, facilitating the subsequent continuous reciprocating swing.

[0055] The tip of the triangular pusher block 262 faces the side away from the connecting beam 24 . There are two planar swing plates 263 , and the two planar swing plates 263 are symmetrically installed along the triangular pusher block 262 .

[0056] The tension spring 264 is installed horizontally, the plane swing plate 263 and the triangular pusher block 262 are installed at the same height, there are two rollers 266 , and the two rollers 266 are installed symmetrically along the triangular pusher block 262 .

[0057] The third embodiment, based on the first and second embodiments, see Figures 1 to 9 As shown:

[0058] A support mechanism 4 is installed on the surface of the fire truck body 1, and the support mechanism 4 is installed directly below the fire water cannon 31. The support mechanism 4 includes a square guide post 41. The surface of the square guide post 41 is slidably installed inside the fire truck body 1. The square guide post 41 penetrates through the fire truck body 1 and extends to its bottom. The top end of the square guide post 41 is fixedly connected to an arc-shaped force-receiving plate 42. A reset elastic strip 43 is fixedly connected between the bottom of the arc-shaped force-receiving plate 42 and the top of the fire truck body 1. The bottom end of the square guide post 41 is fixedly connected to a frustum-shaped base 44. A non-slip gasket 45 is fixedly connected to the bottom of the frustum-shaped base 44. When the fire water cannon 31 is pushed by the telescopic end of the hydraulic cylinder 32 to rotate clockwise to adjust the angle, the bottom end of the fire water cannon 31 contacts the arc-shaped force-receiving plate 42, causing the arc-shaped force-receiving plate 42 to receive a downward pressing force. Under the guiding action of the square guide post 41, the square guide post 41 drives the arc-shaped force-receiving plate 42 and the frustum-shaped base 44 to move downward together, and the reset elastic strip 43 is compressed. The non-slip gasket 45 is used to contact the ground, increasing the friction force and adding support points, making the overall fire truck body 1 more stable.

[0059] The square guide post 41 is installed vertically. The arc-shaped force-receiving plate 42 is installed directly below the fire water cannon 31. The reset elastic strip 43 is arc-shaped. The non-slip gaskets 45 are evenly distributed at the bottom of the frustum-shaped base 44, and the material of the non-slip gasket 45 is rubber.

[0060] During use, first connect one end of the water hose 362 far from the fire water cannon 31 to an external water pump. By rolling the wheels 21, the crawler 23 is driven to operate. Considering that the inner side surface of the crawler 23 and the outer circular surface of the wheels 21 are installed through engagement of teeth, the crawler 23 and the wheels 21 can move synchronously, and it is not easy to slip. This facilitates driving the fire truck body 1 towards the fire source. Moreover, due to the small volume of the fire truck body 1 itself, it can move towards the fire scene in a small space.

[0061] The staff starts the linear drive 22 to work, and uses the output end of the linear drive 22 to drive the connecting beam 24 to move downward, so that the obstacle clearing assembly 26 is driven downward as a whole. When the bottom of the triangular pusher block 262 is close to the ground, the linear drive 22 can be stopped to fix the positions of the triangular pusher block 262 and the flat swing plate 263. As the fire truck body 1 moves forward, the tip of the triangular pusher block 262 pushes the broken debris caused by the burning at the fire scene to both sides. At the same time, when the wheel 21 rolls, it drives the toggle piece 25 to rotate in a circle, and the toggle piece 25 contacts the roller 266, so that the bending connecting rod The two symmetrical planar swing plates 263 are swung outwards, and the tension springs 264 are stretched. As a result, the swing of the planar swing plates 263 pushes the crushed debris to the far sides, reducing the impact of the debris on the overall movement of the equipment when the crawler 23 is running. The entire equipment will not tilt or fall. As the toggle piece 25 separates from the roller 266, the driving force on the roller 266 disappears, and under the elastic tension of the tension spring 264, the planar swing plates 263 rotate inwards to reset, facilitating the subsequent reciprocating swing and continuously clearing obstacles for debris.

[0062] At this time, the staff starts the hydraulic cylinder 32 to work. By extending the telescopic end of the hydraulic cylinder 32, an upward pushing force is applied to the fire monitor 31. With the support of the fire truck body 1, the fire monitor 31 is rotated clockwise to adjust the angle. Thus, the fire monitor 31 is rotated to adjust the angle, thereby increasing the range of water spraying and fire extinguishing.

[0063] When the fire monitor 31 is pushed by the telescopic end of the hydraulic cylinder 32 to rotate clockwise to adjust the angle, the bottom end of the fire monitor 31 contacts the arc-shaped force-bearing plate 42, so that the arc-shaped force-bearing plate 42 is subjected to downward pressing force. Under the guidance of the square guide column 41, the square guide column 41 drives the arc-shaped force-bearing plate 42 and the frustum-shaped base 44 to move downward together, and the reset elastic strip 43 is compressed and contacts the ground with the anti-slip washer 45, thereby increasing friction and increasing support points, making the fire truck body 1 more stable as a whole.

[0064] The water is transported by a hose 362 to the interior of the fire monitor 31, and the conical cap 35 is installed in the middle of the conical bucket 33 through the guide plate 34, so that the water passes through between the conical bucket 33 and the conical cap 35 and is sprayed outward. Under the guidance of the conical bucket 33, the sprayed water presents an annular cone shape, thereby increasing the coverage area of the water spray and extinguishing the fire source.

[0065] Meanwhile, it passes through the center of the protective spring 363 through the water hose 362, so that one end of the water hose 362 close to the fire truck body 1 is inside the protective spring 363. When a heavy object falls at the fire scene, the elastic support of the protective spring 363 on the water hose 362 can be utilized to reduce the pressing force of the heavy object on the water hose 362;

[0066] And the water hose 362 passes through the middle of the bracket 361, so that the bracket 361 supports the end of the water hose 362, which can prevent the end of the water hose 362 from easily contacting the ground. And the water hose 362 passes through the center of the positioning collar 365 and is supported by the support rod 364, avoiding the direct contact between the water hose 362 and the ground. The high temperature of the ground around the fire source will not damage the water hose 362, and the water hose 362 can continuously transport water;

[0067] When the fire extinguishing is completed, the telescopic end of the hydraulic cylinder 32 can be contracted to apply a downward pulling force to the fire fighting water cannon 31, so that the fire fighting water cannon 31 rotates counterclockwise to adjust and reset, and the equipment as a whole is moved out by the reverse rolling of the wheels 21.

[0068] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0069] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable micro fire truck for fire extinguishing, characterized in that, include: A fire truck body (1), and an auxiliary mechanism (2) mounted on the bottom of the fire truck body (1); A water spray mechanism (3), the water spray mechanism (3) is used to extinguish a fire source at a fire scene, and the water spray mechanism (3) is installed on the top of the fire truck body (1); The water spray mechanism (3) comprises a fire water monitor (31) and a hydraulic cylinder (32), the outer cylindrical surface of the fire water monitor (31) is hinged to the top of the fire truck body (1), the hydraulic cylinder (32) is hinged to the side of the top of the fire truck body (1), the telescopic end of the hydraulic cylinder (32) is hinged to the bottom of the fire water monitor (31), the water spray port on the surface of the hydraulic cylinder (32) is fixedly connected to a conical bucket (33), the conical surface of the inner cavity of the conical bucket (33) is fixedly connected to a guide plate (34), the end of the guide plate (34) away from the inner surface of the conical bucket (33) is fixedly connected to a conical cap (35), and the end of the fire water monitor (31) away from the conical bucket (33) is installed with a water delivery assembly (36); The water delivery assembly (36) comprises a bracket (361) and a water hose (362), wherein the bracket (361) is fixedly connected to the rear of the fire truck body (1), and the top of the water hose (362) is communicated with the liquid inlet at the bottom of the fire water monitor (31). The end of the bracket (361) away from the fire truck body (1) is fixedly connected to a protective spring (363), and the spiral surface inside the protective spring (363) is fixed with a support rod (364), and the top of the support rod (364) is fixedly connected to a positioning collar (365), and the water hose (362) passes through the center of the positioning collar (365).

2. The adjustable micro fire truck for fire extinguishing according to claim 1, characterized in that: The fire-fighting water monitor (31) and the hydraulic cylinder (32) are both installed at an angle, the guide plate (34) is installed at an angle, and the conical cap (35) is installed in the middle of the conical bucket (33).

3. The adjustable micro fire truck for fire extinguishing according to claim 1, characterized in that: The water hose (362) passes through the middle of the inner cavity of the bracket (361), and there are four positioning rings (365), and the four positioning rings (365) are evenly distributed inside the protective spring (363).

4. The adjustable micro fire truck for fire extinguishing according to claim 1, characterized in that: The auxiliary mechanism (2) includes a wheel (21) and a linear drive (22), wherein the wheel (21) is rollingly mounted on the bottom of the fire truck body (1), and the linear drive (22) is fixedly mounted on the surface of the fire truck body (1) and away from one end of the bracket (361) by screws, and a crawler (23) is mounted on the outer circumference of the wheel (21), and the output end of the linear drive (22) is fixedly connected to a connecting beam (24), and a toggle plate (25) is fixedly connected to the side of the surface of the wheel (21), and the toggle plate (25) is arc-shaped. An obstacle clearing component (26) is mounted in the middle of the surface of the connecting beam (24).

5. The adjustable micro fire truck for fire extinguishing according to claim 4, wherein: There are four of the wheels (21), and the four wheels (21) are evenly installed at the bottom of the fire truck body (1). The inner side of the crawler belt (23) is installed by engaging with the outer circular surface of the wheel (21) through engaging teeth. The linear actuator (22) is installed vertically. There are two of the linear actuators (22), and the two linear actuators (22) are symmetrically installed along the connecting beam (24).

6. The adjustable micro fire truck for fire extinguishing according to claim 4, characterized in that: The obstacle cleaning assembly (26) includes a three-claw support (261). The three-claw support (261) is fixedly connected to the middle of the surface of the connecting beam (24) by bolts. One end of the three-claw support (261) away from the connecting beam (24) is fixedly connected to a triangular pushing block (262). At both ends of the surface of the triangular pushing block (262), there are hinged flat swing plates (263). In the middle of the surface of the flat swing plate (263), there is a tension spring (264) fixedly connected. At one end of the surface of the flat swing plate (263) away from the triangular pushing block (262), there is a bent connecting rod (265) fixedly connected. At one end of the surface of the bent connecting rod (265) away from the flat swing plate (263), there is a roller (266) installed in a rolling manner.

7. An adjustable micro fire truck for fire extinguishing according to claim 6, characterized in that: The tip of the triangular pushing block (262) faces away from the side of the connecting beam (24). There are two of the flat swing plates (263), and the two flat swing plates (263) are symmetrically installed along the triangular pushing block (262).

8. An adjustable micro fire truck for fire extinguishing according to claim 6, characterized in that: The tension spring (264) is installed horizontally. The flat swing plate (263) and the triangular pushing block (262) are installed at the same height. There are two of the rollers (266), and the two rollers (266) are symmetrically installed along the triangular pushing block (262).

9. The adjustable micro fire truck for fire extinguishing according to claim 1, wherein: On the surface of the fire truck body (1), there is a support mechanism (4) installed, and the support mechanism (4) is installed directly below the fire water cannon (31). The support mechanism (4) includes a square guide post (41). The surface of the square guide post (41) is slidably installed inside the fire truck body (1). The square guide post (41) penetrates through the fire truck body (1) and extends to its bottom. At the top end of the square guide post (41), there is an arc-shaped stress plate (42) fixedly connected. Between the bottom of the arc-shaped stress plate (42) and the top of the fire truck body (1), there is a reset elastic strip (43) fixedly connected. At the bottom end of the square guide post (41), there is a frustum-shaped base (44) fixedly connected. At the bottom of the frustum-shaped base (44), there is an anti-slip gasket (45) fixedly connected.

10. The adjustable micro fire truck for fire extinguishing according to claim 9, characterized in that: The square guide post (41) is installed vertically. The arc-shaped stress plate (42) is installed directly below the fire water cannon (31). The reset elastic strip (43) is arc-shaped. The anti-slip gaskets (45) are evenly distributed at the bottom of the frustum-shaped base (44), and the material of the anti-slip gasket (45) is rubber material.

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