Fire-fighting vehicle and fire-fighting equipment

Abstract

A fire-fighting vehicle and fire-fighting equipment. A fire-fighting vehicle (100) comprises: a chassis (110), on which a boom apparatus (130) is provided, the boom apparatus being capable of being switched between an unfolded state and a retracted state; a liquid storage tank (120), disposed on the chassis, the liquid storage tank having a liquid storage cavity (121), and at least part of the liquid storage tank being capable of moving vertically upward relative to the chassis, so as to change a volume of the liquid storage cavity, so that the fire-fighting vehicle can implement both a super-high fire extinguishing range and a super-high liquid carrying capacity. That is, optimization of two technical parameters: an operating height and a liquid carrying capacity of the boom apparatus is taken into consideration. Additionally the stability and safety of the entire vehicle when the fire-fighting vehicle is in a fire-fighting state can be improved.

Description

Firefighting vehicle and firefighting equipment

[0001] The present application claims priority to the Chinese patent application No. 202411036259.1, filed on July 31, 2024, and entitled “Firefighting vehicle and firefighting equipment”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of firefighting vehicles, in particular to a firefighting vehicle and firefighting equipment. BACKGROUND

[0003] At present, the high-spray firefighting vehicle in the related art generally integrates an arm support and a liquid tank. It can be understood that the longer the arm support is, the higher the working height of the arm support is. Due to the limitation of the overall vehicle layout, in order to make the working height of the arm support higher, the liquid carrying capacity of the liquid tank needs to be sacrificed; in order to make the liquid carrying capacity of the liquid tank larger, the working height of the arm support needs to be sacrificed, that is, the optimization of the two technical parameters of the working height of the arm support and the liquid carrying capacity of the overall vehicle cannot be considered. SUMMARY

[0004] Embodiments of the present application aim to at least solve or improve one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of embodiments of the present application provides a firefighting vehicle.

[0006] A second aspect of embodiments of the present application provides firefighting equipment.

[0007] Therefore, according to the first aspect of embodiments of the present application, a firefighting vehicle is provided, which comprises a chassis, an arm support device provided on the chassis and capable of switching between an unfolded state and a retracted state, and a liquid storage tank provided on the chassis and having a liquid storage cavity, at least a portion of the liquid storage tank being capable of moving vertically relative to the chassis to change the volume of the liquid storage cavity.

[0008] The firefighting vehicle provided by the embodiments of the present application comprises a chassis and a liquid storage tank. Specifically, the chassis is provided with an arm support device, and the arm support device is capable of switching between an unfolded state and a retracted state. It can be understood that when the firefighting vehicle is in a combat state, the arm support device is in the unfolded state to increase the fire extinguishing range of the firefighting vehicle and improve the fire extinguishing efficiency. When the firefighting vehicle is in a non-combat state, the arm support device is in the retracted state to avoid interference with other structures during driving.

[0009] Optionally, the fire truck further comprises a spraying assembly arranged on the boom device and capable of being in communication with the liquid storage tank, and it can be understood that the liquid storage cavity contains fire extinguishing medium, that is, when the fire truck is in the combat state, the liquid storage tank can provide the spraying assembly with the fire extinguishing medium so that the spraying assembly sprays the fire extinguishing medium to extinguish the fire.

[0010] Specifically, when the boom device is in the retracted state, that is, the fire truck is in the non-combat state, at least part of the liquid storage tank is located in the retracted position, and the volume of the liquid storage cavity is small and the weight is light, so that the weight of the boom device can be increased as much as possible within the weight requirement allowed by the chassis, thereby increasing the working height of the boom device and further increasing the fire extinguishing range to meet the fire extinguishing demand in various scenes and improve the fire extinguishing efficiency.

[0011] When the fire truck needs to enter the combat state, the boom device is switched to the deployed state, and at least part of the liquid storage tank is controlled to move to the deployed position to increase the volume of the liquid storage cavity and improve the liquid carrying capacity, thereby effectively improving the fire fighting efficiency and combat duration. Moreover, since the volume of the liquid storage cavity is increased, the chassis mass of the fire truck is increased, thereby effectively preventing the fire truck from tipping over when the boom device is deployed, improving the stability of the boom device after deployment, and thereby improving the combat safety of the fire truck.

[0012] By moving at least part of the liquid storage tank relative to the chassis in the vertical direction, the volume in the liquid storage cavity is variable, so that the size of the liquid storage cavity can be controlled according to the actual combat situation of the fire truck, thereby enabling the fire truck to simultaneously realize the super-high fire extinguishing range and the super-large liquid carrying capacity, that is, the optimization of both the working height of the boom device and the liquid carrying capacity, while also improving the stability and safety of the fire truck in the combat state.

[0013] It is worth noting that the boom device can control at least part of the liquid storage tank to move to the deployed position after a part of the movable boom is deployed. Alternatively, the boom device is fully deployed, and then at least part of the liquid storage tank is controlled to move to the deployed position. The specific setting can be made according to actual needs.

[0014] In addition, the fire truck provided by the above technical solutions of the application further has the following additional technical features:

[0015] In some technical solutions, the chassis is provided with a liquid carrying groove, and at least part of the liquid storage tank is arranged in the liquid carrying groove to avoid the boom device.

[0016] In the technical scheme, the chassis is provided with the liquid carrying groove, and the at least partial liquid storage tank is arranged in the liquid carrying groove to avoid interference with the arm support device, that is, the at least partial liquid storage tank is embedded in the liquid carrying groove, so that the arm support device can be smoothly unfolded or retracted.

[0017] In addition, since the at least partial liquid storage tank is embedded in the liquid carrying groove, the vertical space occupied by the liquid storage tank is reduced, and when the liquid storage tank is in the retracted position and the arm support device is retracted, the vertical space occupied by the entire fire truck is reduced, so that the fire truck does not interfere with other structures during driving.

[0018] In some technical schemes, the chassis is further provided with a load surface, and the at least partial liquid storage tank can move relative to the chassis between the retracted position and the unfolded position; when the at least partial liquid storage tank is in the retracted position, the side surface of the liquid storage tank away from the chassis is flush with the load surface in the vertical direction.

[0019] In the technical scheme, it can be understood that the side surface of the liquid storage tank away from the chassis is the top surface of the liquid storage tank in the vertical direction.

[0020] When at least part of the liquid storage tank is in the retracted position, the top surface of the liquid storage tank is flush with the load surface, so that interference between the arm support device and the liquid storage tank during unfolding or retraction can be further avoided, and the smooth operation of the fire fighting operation can be ensured, and the service life of the fire truck can be prolonged.

[0021] In some technical schemes, the at least partial liquid storage tank can move relative to the chassis between the retracted position and the unfolded position; the arm support device includes a plurality of movable arms, at least one movable arm can move relative to the remaining movable arms to switch the arm support device between the unfolded state and the retracted state, the plurality of movable arms includes a first arm, and the first arm is rotationally connected to the chassis; the fire truck further includes a first detection member, the first detection member is used to detect an angle value of an included angle between the first arm and a horizontal plane, and when the angle value of the included angle is greater than or equal to a set value, the at least partial liquid storage tank can move relative to the chassis from the retracted position to the unfolded position.

[0022] In the technical scheme, the arm support device includes a plurality of movable arms, and specifically, at least one movable arm can move relative to the remaining movable arms to switch the arm support device between the unfolded state and the retracted state. Optionally, the movable arms include telescopic arms or folding arms.

[0023] The plurality of movable arms includes a first arm, and the first arm is rotationally connected to the chassis. It can be understood that during unfolding of the arm support device, the first arm is unfolded first, and then the remaining movable arms are unfolded.

[0024] When the first detection member detects that the angle value of the included angle formed between the first arm support and the horizontal plane is greater than or equal to the set value, that is, the first arm support is unfolded to a safe angle, at this time, at least part of the liquid storage tank can be moved to the unfolded position to increase the volume of the liquid storage cavity and the liquid carrying capacity, so as to avoid the interference between the movable arm support and the liquid storage tank, and facilitate the smooth progress of the fire fighting operation and improve the fire extinguishing efficiency.

[0025] Optionally, after the first arm support is unfolded to the safe angle, at least part of the liquid storage tank can be moved to the unfolded position first, and then the remaining movable arm supports are unfolded. Alternatively, after the first arm support is unfolded to the safe angle, at least part of the liquid storage tank and the remaining movable arm supports act simultaneously. The specific setting can be made according to actual needs.

[0026] In some technical solutions, the fire fighting vehicle further comprises a second detection member, which is used to detect the distance between the remaining movable arm supports and the side of the liquid storage tank away from the chassis in the vertical direction when the arm support device is in the unfolded state and at least part of the liquid storage tank is located at the unfolded position.

[0027] In this technical solution, it is limited that the fire fighting vehicle further comprises a second detection member, and specifically, when at least part of the liquid storage tank is located at the unfolded position, the volume of the liquid storage cavity increases, and the liquid carrying capacity increases, that is, the fire fighting vehicle is in the combat state. It can be understood that during the combat process, the arm support device can be operated, such as turning, according to the actual needs of the fire fighting combat scene.

[0028] By setting the second detection member to detect the distance between the remaining movable arm supports and the top surface of the liquid storage tank, interference between the arm support device and the liquid storage tank with increased volume during the turning operation can be effectively avoided, and the smooth progress of the fire fighting operation is further ensured, which is beneficial to improving the combat efficiency.

[0029] Optionally, the fire fighting vehicle further comprises a controller electrically connected with the second detection member and the hydraulic driving system, and when the second detection member detects that the distance between the top surface of the liquid storage tank and any movable arm support is less than a safety value, the controller controls the movable arm support to be raised by a certain height through the hydraulic driving system. The specific control process can be set according to actual needs.

[0030] In some technical solutions, the liquid storage tank is provided with a liquid discharge port, and the liquid discharge port is in communication with the liquid storage cavity.

[0031] In this technical solution, it is limited that the liquid storage tank is further provided with a liquid discharge port, and specifically, the liquid discharge port is in communication with the liquid storage cavity. Optionally, the fire fighting vehicle further comprises a liquid discharge valve arranged at the liquid discharge port and used to control the opening or closure of the liquid discharge port.

[0032] When the fire truck is out of combat, before the arm device is retracted, if the volume of the remaining liquid in the liquid storage cavity is greater than the first volume, that is, the volume of the remaining liquid is greater than the volume of the liquid storage cavity before it is increased, part or all of the remaining liquid can be discharged through the liquid discharge port, and then at least part of the liquid storage tank is controlled to move to the retracted position, and the arm device is retracted.

[0033] It can be understood that if the volume of the remaining liquid in the liquid storage cavity is less than the first volume, the remaining liquid can be discharged through the liquid discharge port, or at least part of the liquid storage tank can be directly controlled to move to the retracted position. It can be set according to actual needs.

[0034] In some technical solutions, optionally, the liquid storage tank comprises a tank body, a jacking assembly and a driving device, wherein the jacking assembly is movably connected with the tank body and forms a liquid storage cavity together with the tank body, and the driving device is connected with the jacking assembly and can drive the jacking assembly to move vertically relative to the tank body to change the volume of the liquid storage cavity.

[0035] In this technical solution, the liquid storage tank comprises a tank body, a jacking assembly and a driving device. Specifically, the tank body and the jacking assembly form a liquid storage cavity. The driving device is connected with the jacking assembly.

[0036] Specifically, when the arm device is in the retracted state, that is, the fire truck is in a non-combat state, at least part of the jacking assembly is located in the retracted position, the volume of the liquid storage cavity is small, and the weight is light. Therefore, the weight of the arm device can be increased as much as possible within the weight requirement allowed by the chassis, thereby increasing the working height of the arm device and further increasing the fire extinguishing range to meet the fire extinguishing demand in various scenes and improve the fire extinguishing efficiency.

[0037] When the fire truck needs to enter the combat state, the arm device is switched to the unfolded state, and the driving device drives at least part of the jacking assembly to move from the retracted position to the unfolded position to increase the volume of the liquid storage cavity and improve the liquid carrying capacity, thereby effectively improving the fire fighting efficiency and combat duration. Moreover, since the volume of the liquid storage cavity is increased, the chassis mass of the fire truck is increased, thereby effectively preventing the fire truck from tipping over when the arm device is unfolded, improving the stability of the arm device after unfolding, and thereby improving the combat safety of the fire truck.

[0038] It can be understood that after the combat is completed, the driving device can drive at least part of the jacking assembly to reset to the retracted position, facilitating the retraction of the arm device.

[0039] Optionally, the driving device comprises a telescopic oil cylinder or a telescopic gas cylinder.

[0040] Optionally, the driving device comprises a double screw structure.

[0041] Optionally, the driving device comprises a connecting rod structure.

[0042] Optionally, the driving device comprises a plurality of driving members, and the plurality of driving members are arranged at intervals.

[0043] In some embodiments, the jacking assembly comprises a jacking plate and an extensible member, wherein the jacking plate is opposite to the tank body and connected to the driving device, the extensible member is located between the jacking plate and the tank body, two ends of the extensible member are connected to the jacking plate and the tank body respectively, and the driving device is capable of driving the jacking plate to move in the vertical direction relative to the tank body to change the length of the extensible member.

[0044] In this embodiment, the jacking assembly comprises a jacking plate and an extensible member, specifically, the jacking plate is opposite to the tank body, the extensible member is located between the jacking plate and the tank body, and the first end of the extensible member is connected to the jacking plate, and the second end of the extensible member is connected to the tank body.

[0045] Since the driving device is connected to the jacking plate, that is, when the driving device drives the jacking plate to move in the vertical direction relative to the tank body, the length of the extensible member can be changed, that is, the jacking plate moves in the vertical direction and changes the length of the extensible member, so that the volume of the part enclosed by the jacking plate and the extensible member changes, thereby realizing the change of the overall volume of the liquid storage cavity.

[0046] Specifically, when the fire truck is in a non-combat state, that is, the jacking plate is in a retracted position, the extensible member has a first length, and the volume of the liquid storage cavity is small, therefore, the weight of the boom device can be increased as much as possible within the weight requirement allowed by the chassis, thereby increasing the working height of the boom device and increasing the fire extinguishing range, thereby meeting the fire extinguishing requirements in various scenarios.

[0047] When the fire truck is in a combat state, the driving device drives the jacking plate to move in the direction away from the tank body to an unfolded position, so that the extensible member has a second length to increase the volume of the liquid storage cavity and improve the liquid carrying capacity, thereby improving the fire fighting efficiency and combat duration, wherein the second length is greater than the first length. Moreover, since the volume of the liquid storage cavity is increased, the chassis mass of the fire truck is increased, which effectively prevents the fire truck from tipping over when the boom device is unfolded, improves the stability of the boom device after unfolding, and thereby improves the combat safety of the fire truck.

[0048] Optionally, the extensible member comprises a high polymer member, and the high polymer member comprises a fiber cloth.

[0049] Optionally, the tank body comprises a metal member or a plastic member.

[0050] Optionally, the jacking plate comprises a metal plate or a plastic plate.

[0051] In some embodiments, when the driving device drives the jacking plate to move in the direction close to the tank body, the jacking plate can be in contact with the tank body.

[0052] In the technical scheme, when the fire-fighting operation is completed, the driving device can drive the jacking plate to move towards the tank body, so that the jacking assembly returns to the retracted position, and the boom device is retracted conveniently.

[0053] Specifically, when the jacking assembly needs to be retracted, the jacking plate is moved towards the tank body, and the jacking plate can be in contact with the tank body, that is, when the jacking plate returns to the retracted position, the jacking plate is in contact with the tank body. On the one hand, the jacking plate can be limited during retraction, so that the jacking plate does not move excessively and interfere with other structures, ensuring smooth vertical movement of the jacking plate again, which is conducive to quickly entering the fire-fighting state. On the other hand, when the jacking plate is retracted, the jacking plate is in contact with the tank body, so that the telescopic member is not pressed, which is conducive to prolonging the service life of the telescopic member.

[0054] In some technical schemes, the fire truck further comprises a sealing member, which is arranged at the connection between the telescopic member and the tank body, and / or the sealing member is arranged at the connection between the telescopic member and the jacking plate.

[0055] In the technical scheme, it is specified that the fire truck further comprises a sealing member, specifically, the sealing member is arranged at the connection between the telescopic member and the jacking plate. Alternatively, the sealing member is arranged at the connection between the telescopic member and the tank body. Alternatively, the connection between the telescopic member and the jacking plate and the connection between the telescopic member and the tank body are respectively provided with sealing members. The arrangement can be made according to actual needs.

[0056] By arranging the sealing member, the connection between the telescopic member and the jacking plate and / or the connection between the telescopic member and the tank body can be sealed, the sealing property of the liquid storage cavity is improved, when the volume in the liquid storage cavity is large, the connection between the jacking plate and the telescopic member and / or the connection between the telescopic member and the tank body is prevented from leaking, and the fire-fighting efficiency and the duration of the fire-fighting operation are ensured.

[0057] In some technical schemes, the fire truck further comprises a spraying assembly, which is arranged on the boom device and can communicate with the liquid storage tank.

[0058] In the technical scheme, it is specified that the fire truck further comprises a spraying assembly, specifically, the spraying assembly is arranged on the boom device, and the spraying assembly can communicate with the liquid storage tank. When the fire truck is in the operation state, the liquid storage tank can provide the spraying assembly with fire extinguishing medium, so that the spraying assembly sprays the fire extinguishing medium to extinguish the fire.

[0059] Alternatively, the spraying assembly comprises a spraying pipeline and a spray gun, the two ends of the spraying pipeline are respectively in communication with the spray gun and the liquid storage tank, the spraying pipeline is arranged on the plurality of movable arms, and the spray gun is arranged at the end of the last movable arm in the plurality of movable arms, which is conducive to further improving the fire extinguishing range of the fire truck.

[0060] Optionally, the liquid storage tank is further provided with a first interface, the base plate is further provided with a second interface, the first interface and the second interface are connected in cooperation, and the fire extinguishing medium in the liquid storage cavity flows through the first interface, the second interface and the spray pipeline in sequence and is sprayed out by the spray gun.

[0061] In some technical solutions, the base plate comprises a body, a support turntable and a support leg assembly, wherein the support turntable is arranged on the body, the arm support device is connected with the support turntable, and the support leg assembly is arranged on the body.

[0062] In this technical solution, the base plate comprises a body, a support turntable and a support leg assembly, specifically, the support turntable is arranged on the body, and the arm support device is connected with the support turntable, that is, the arm support device can move relative to the support turntable to switch between the unfolded state and the retracted state.

[0063] The support leg assembly is arranged on the body, and it can be understood that the support leg assembly can be in contact with the ground, thereby providing reliable support for the whole fire fighting vehicle and improving the stability of the fire fighting vehicle during combat.

[0064] According to a second aspect of the present application, a fire fighting equipment is provided, comprising at least one fire fighting vehicle provided in any of the above technical solutions, thereby having all the beneficial technical effects of the fire fighting vehicle, which will not be described herein.

[0065] Further, the fire fighting equipment further comprises a liquid supply vehicle, which is in communication with the liquid storage cavity of the at least one fire fighting vehicle.

[0066] The fire fighting equipment provided by the embodiments of the present application comprises at least one fire fighting vehicle and a liquid supply vehicle, specifically, the liquid supply vehicle is in communication with the liquid storage cavity of the at least one fire fighting vehicle, that is, the at least one fire fighting vehicle provided with the variable-volume liquid storage tank is cooperated with a large-tank liquid carrying vehicle (liquid supply vehicle) for combat, so as to realize continuous liquid supply in the liquid storage cavity and ensure that the at least one fire fighting vehicle can continuously combat, which is beneficial to further improve the combat duration and combat efficiency of the fire fighting.

[0067] Optionally, the number of fire fighting vehicles is multiple, since the volume of the liquid storage tank of each fire fighting vehicle is increased in the combat state, the liquid supply vehicle can fill the liquid storage tanks of multiple fire fighting vehicles with liquid respectively and then leave to supplement liquid, so as to ensure that the multiple fire fighting vehicles can continuously combat.

[0068] Optionally, the number of liquid supply vehicles is multiple, when at least one liquid supply vehicle supplies liquid for at least one fire fighting vehicle, the remaining liquid supply vehicles go to supplement liquid, so as to realize uninterrupted liquid supply and further realize continuous combat of the at least one fire fighting vehicle.

[0069] The additional aspects and advantages of the present application will be given in the following description part, some of which will become apparent from the following description or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0070] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0071] FIG. 1 shows one of structural schematic diagrams of a fire truck according to one embodiment of the present application;

[0072] FIG. 2 shows another of structural schematic diagrams of a fire truck according to one embodiment of the present application;

[0073] FIG. 3 shows a third of structural schematic diagrams of a fire truck according to one embodiment of the present application;

[0074] FIG. 4 shows a fourth of structural schematic diagrams of a fire truck according to one embodiment of the present application;

[0075] FIG. 5 shows one of structural schematic diagrams of a liquid storage tank according to one embodiment of the present application;

[0076] FIG. 6 shows another of structural schematic diagrams of a liquid storage tank according to one embodiment of the present application;

[0077] FIG. 7 shows a structural schematic diagram of fire-fighting equipment according to one embodiment of the present application.

[0078] In FIGS. 1-7, the correspondence between the reference numerals and the component names is as follows: 100 fire truck, 110 chassis, 112 load surface, 113 liquid carrying groove, 114 body, 115 support turntable, 116 leg assembly, 120 liquid storage tank, 121 liquid storage cavity, 122 liquid discharge port, 123 tank body, 124 jacking assembly, 125 driving device, 126 jacking plate, 127 telescopic member, 128 sealing member, 130 arm support device, 131 movable arm support, 132 first arm support, 150 first detection member, 160 second detection member, 170 spraying assembly, 200 fire-fighting equipment, 210 liquid supply vehicle. DETAILED DESCRIPTION

[0079] In order to enable a clearer understanding of the above-mentioned purposes, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0080] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced without the specific details, which are different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0081] The fire truck 100 and the fire-fighting equipment 200 provided according to some embodiments of the present application will be described below with reference to FIGS. 1-7.

[0082] In an embodiment according to the application, as shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5 and FIG. 6, a fire truck 100 is provided, the fire truck 100 comprising: a chassis 110, an arm support device 130 being arranged on the chassis 110, the arm support device 130 being switchable between an unfolded state and a retracted state; a liquid storage tank 120 being arranged on the chassis 110, the liquid storage tank 120 having a liquid storage cavity 121, at least a portion of the liquid storage tank 120 being vertically movable relative to the chassis 110 to change the volume of the liquid storage cavity 121.

[0083] It should be noted that the Y-axis in FIG. 1 and FIG. 4 represents the vertical direction.

[0084] The fire truck 100 provided by the embodiment of the application comprises the chassis 110 and the liquid storage tank 120. Specifically, the chassis 110 is provided with the arm support device 130, and the arm support device 130 is switchable between the unfolded state and the retracted state. It can be understood that when the fire truck 100 is in a combat state, the arm support device 130 is in the unfolded state to increase the fire extinguishing range of the fire truck 100 and improve the fire extinguishing efficiency. When the fire truck 100 is in a non-combat state, the arm support device 130 is in the retracted state to avoid interference with other structures during the driving of the fire truck 100.

[0085] Optionally, the fire truck 100 further comprises a spraying assembly 170, the spraying assembly 170 being arranged on the arm support device 130 and being in communication with the liquid storage tank 120. It can be understood that the liquid storage cavity 121 contains fire extinguishing medium, that is, when the fire truck 100 is in the combat state, the liquid storage tank 120 can provide the fire extinguishing medium for the spraying assembly 170 to spray the fire extinguishing medium for fire extinguishing.

[0086] Specifically, when the arm support device 130 is in the retracted state, that is, the fire truck 100 is in the non-combat state, at least a portion of the liquid storage tank 120 is located in the retracted position, the volume of the liquid storage cavity 121 is small, and the weight is light. Therefore, the weight of the arm support device 130 can be increased as much as possible within the weight requirement allowed by the chassis 110, so as to increase the working height of the arm support device 130, further increase the fire extinguishing range, meet the fire extinguishing requirements in various scenes, and improve the fire extinguishing efficiency.

[0087] When the fire truck 100 needs to enter the combat state, the boom device 130 is switched to the unfolded state, and at least part of the liquid storage tank 120 is controlled to move to the unfolded position to increase the volume of the liquid storage cavity 121, increase the liquid carrying capacity, and thus effectively improve the fire fighting efficiency and combat duration. Moreover, since the volume of the liquid storage cavity 121 is increased, the mass of the chassis 110 of the fire truck 100 is increased, thereby effectively preventing the fire truck 100 from tipping over when the boom device 130 is unfolded, improving the stability of the boom device 130 after unfolding, and thus improving the combat safety of the fire truck 100.

[0088] By moving at least part of the liquid storage tank 120 relative to the chassis 110 in the vertical direction, the volume in the liquid storage cavity 121 can be changed, so that the size of the liquid storage cavity 121 can be controlled according to the actual combat situation of the fire truck 100, thereby enabling the fire truck 100 to simultaneously realize an ultra-high fire extinguishing range and an ultra-large liquid carrying capacity, that is, to simultaneously optimize the working height of the boom device 130 and the liquid carrying capacity, and to improve the stability and safety of the fire truck 100 in the combat state.

[0089] It is worth noting that the boom device 130 can control at least part of the liquid storage tank 120 to move to the unfolded position after unfolding part of the movable boom 131. Alternatively, the boom device 130 is fully unfolded, and then at least part of the liquid storage tank 120 is controlled to move to the unfolded position. The specific setting can be made according to actual needs.

[0090] As shown in FIGS. 1, 2, 3 and 4, in some embodiments, the chassis 110 is optionally provided with a liquid carrying groove 113, and at least part of the liquid storage tank 120 is arranged in the liquid carrying groove 113 to avoid the boom device 130.

[0091] In this embodiment, the chassis 110 is provided with the liquid carrying groove 113, and at least part of the liquid storage tank 120 is arranged in the liquid carrying groove 113 to avoid the boom device 130, that is, at least part of the liquid storage tank 120 is embedded in the liquid carrying groove 113, thereby avoiding interference with the liquid storage tank 120 during unfolding or retracting of the boom device 130, and ensuring that the boom device 130 can be smoothly unfolded or retracted.

[0092] In addition, since at least part of the liquid storage tank 120 is embedded in the liquid carrying groove 113, it is also beneficial to reduce the vertical space occupied by the liquid storage tank 120, thereby reducing the vertical space occupied by the fire truck 100 when the liquid storage tank 120 is in the retracted position and the boom device 130 is retracted, and avoiding interference with other structures during driving of the fire truck 100.

[0093] As shown in FIG. 3 and FIG. 4, in some embodiments, the chassis 110 is optionally provided with a load-carrying surface 112, and the at least partial liquid storage tank 120 is movable relative to the chassis 110 between a retracted position and a deployed position; when the at least partial liquid storage tank 120 is in the retracted position, the side of the liquid storage tank 120 that is vertically away from the chassis 110 is flush with the load-carrying surface 112.

[0094] In this embodiment, it can be understood that, in the vertical direction, the side of the liquid storage tank 120 that is vertically away from the chassis 110 is the top surface of the liquid storage tank 120.

[0095] When at least part of the liquid storage tank 120 is in the retracted position, the top surface of the liquid storage tank 120 is flush with the load-carrying surface 112, so as to further avoid interference between the boom device 130 and the liquid storage tank 120 during deployment or retraction, and facilitate smooth operation of the fire-fighting operation and prolong the service life of the fire truck 100.

[0096] As shown in FIG. 1, FIG. 2 and FIG. 4, in some embodiments, the at least partial liquid storage tank 120 is movable relative to the chassis 110 between a retracted position and a deployed position; the boom device 130 comprises a plurality of movable booms 131, at least one of which is movable relative to the remaining movable booms 131 to switch the boom device 130 between a deployed state and a retracted state, and the plurality of movable booms 131 comprises a first boom 132, which is rotatably connected to the chassis 110; the fire truck 100 further comprises a first detection member 150 for detecting an angle value of an included angle between the first boom 132 and a horizontal plane, and when the angle value of the included angle is greater than or equal to a set value, the at least partial liquid storage tank 120 is movable relative to the chassis 110 from the retracted position to the deployed position.

[0097] In this embodiment, it is defined that the boom device 130 comprises a plurality of movable booms 131, and specifically, at least one of the movable booms 131 is movable relative to the remaining movable booms 131 to switch the boom device 130 between a deployed state and a retracted state. Optionally, the movable booms 131 comprise telescopic arms or folding arms.

[0098] The plurality of movable booms 131 comprises a first boom 132, which is rotatably connected to the chassis 110, and it can be understood that, during deployment of the boom device 130, the first boom 132 is generally deployed first, and then the remaining movable booms 131 are deployed.

[0099] When the first detection member 150 detects that the angle value of the included angle formed between the first arm support 132 and the horizontal plane is greater than or equal to the set value, that is, the first arm support 132 is unfolded to the safe angle, at this time, at least part of the liquid storage tank 120 can be moved to the unfolded position to increase the volume of the liquid storage cavity 121 and increase the liquid carrying capacity, so as to avoid the interference between the movable arm support 131 and the liquid storage tank 120, and facilitate the smooth operation of the fire fighting operation and improve the fire extinguishing efficiency.

[0100] Optionally, after the first arm support 132 is unfolded to the safe angle, at least part of the liquid storage tank 120 can be moved to the unfolded position first, and then the remaining movable arm supports 131 are unfolded. Alternatively, after the first arm support 132 is unfolded to the safe angle, at least part of the liquid storage tank 120 and the remaining movable arm supports 131 act simultaneously. The specific setting can be made according to actual needs.

[0101] It is worth noting that the installation position of the first detection member 150 is not limited to the position shown in FIG. 1.

[0102] As shown in FIG. 1, in some embodiments, the fire fighting vehicle 100 further comprises a second detection member 160, which is used to detect the distance between the remaining movable arm supports 131 and the side of the liquid storage tank 120 away from the chassis 110 in the vertical direction when the arm support device 130 is in the unfolded state and at least part of the liquid storage tank 120 is located at the unfolded position.

[0103] In this embodiment, it is defined that the fire fighting vehicle 100 further comprises a second detection member 160, and specifically, when at least part of the liquid storage tank 120 is located at the unfolded position, the volume of the liquid storage cavity 121 is increased, and the liquid carrying capacity is increased, that is, the fire fighting vehicle 100 is in the combat state. It can be understood that during the combat process, according to the actual needs of the fire fighting combat scene, the arm support device 130 can be operated such as turning.

[0104] By setting the second detection member 160 to detect the distance between the remaining movable arm supports 131 and the top surface of the liquid storage tank 120, it can effectively avoid the interference between the arm support device 130 and the liquid storage tank 120 with increased volume during the operation such as turning, further ensure the smooth operation of the fire fighting operation, and facilitate the improvement of the combat efficiency.

[0105] Optionally, the fire fighting vehicle 100 further comprises a controller, which is electrically connected with the second detection member 160 and the hydraulic drive system, and when the second detection member 160 detects that the distance between the top surface of the liquid storage tank 120 and any movable arm support 131 is less than a safety value, the controller controls the movable arm support 131 to be raised by a certain height through the hydraulic drive system. The specific control process can be set according to actual needs.

[0106] It is worth mentioning that the installation position of the second detection member 160 is not limited to the position shown in FIG. 1.

[0107] As shown in FIG. 1, in some embodiments, the liquid storage tank 120 is optionally provided with a liquid discharge port 122, which is in communication with the liquid storage cavity 121.

[0108] In this embodiment, it is defined that the liquid storage tank 120 is further provided with a liquid discharge port 122, and specifically, the liquid discharge port 122 is in communication with the liquid storage cavity 121. The fire truck 100 further comprises a liquid discharge valve, which is arranged at the liquid discharge port 122 and used to control the opening or closure of the liquid discharge port 122.

[0109] When the fire truck 100 ends the operation, before the boom device 130 is retracted, if the volume of the remaining liquid in the liquid storage cavity 121 is greater than the first volume, i.e., the volume of the remaining liquid is greater than the volume of the liquid storage cavity 121 before the volume is increased, part or all of the remaining liquid can be discharged through the liquid discharge port 122, and then at least part of the liquid storage tank 120 is controlled to move to the retracted position, and the boom device 130 is retracted.

[0110] It can be understood that if the volume of the remaining liquid in the liquid storage cavity 121 is less than the first volume, the remaining liquid can be discharged through the liquid discharge port 122, or at least part of the liquid storage tank 120 can be directly controlled to move to the retracted position. Specifically, it can be set according to actual needs.

[0111] It is worth mentioning that the first volume is the volume of the liquid storage cavity 121 when at least part of the liquid storage tank 120 is in the retracted position. It can be understood that when at least part of the liquid storage tank 120 is in the deployed position, the volume of the liquid storage cavity 121 is the second volume, and the second volume is greater than the first volume.

[0112] As shown in FIGS. 5 and 6, in some embodiments, the liquid storage tank 120 comprises a tank body 123, a jacking assembly 124, and a driving device 125, wherein the jacking assembly 124 is movably connected with the tank body 123 and forms the liquid storage cavity 121 together with the tank body 123, and the driving device 125 is connected with the jacking assembly 124, and the driving device 125 is capable of driving the jacking assembly 124 to move in the vertical direction relative to the tank body 123 to change the volume of the liquid storage cavity 121.

[0113] In this embodiment, it is defined that the liquid storage tank 120 comprises a tank body 123, a jacking assembly 124, and a driving device 125, and specifically, the tank body 123 and the jacking assembly 124 form the liquid storage cavity 121 together. The driving device 125 is connected with the jacking assembly 124.

[0114] Specifically, when the arm support device 130 is in the retracted state, i.e., the fire truck 100 is in a non-combat state, at least part of the jacking assembly 124 is located in the retracted position, the volume of the liquid storage cavity 121 is small, and the weight is light, so that the weight of the arm support device 130 can be increased as much as possible within the weight requirement allowed by the chassis 110, thereby increasing the working height of the arm support device 130, further increasing the fire extinguishing range, meeting the fire extinguishing demand in various scenes, and improving the fire extinguishing efficiency.

[0115] When the fire truck 100 needs to enter the combat state, the arm support device 130 is switched to the deployed state, and the driving device 125 drives at least part of the jacking assembly 124 to move from the retracted position to the deployed position, so as to increase the volume of the liquid storage cavity 121 and increase the liquid carrying capacity, thereby effectively improving the fire fighting efficiency and combat duration. Moreover, since the volume of the liquid storage cavity 121 is increased, the mass of the chassis 110 of the fire truck 100 is increased, thereby effectively preventing the fire truck 100 from tipping over when the arm support device 130 is deployed, improving the stability of the arm support device 130 after being deployed, and thereby improving the combat safety of the fire truck 100.

[0116] It can be understood that after the combat is completed, the driving device 125 can drive at least part of the jacking assembly 124 to reset from the deployed position to the retracted position, facilitating the retraction of the arm support device 130.

[0117] Optionally, the driving device 125 includes a telescopic oil cylinder or a telescopic air cylinder. Optionally, the driving device 125 includes a double screw structure. Optionally, the driving device 125 includes a connecting rod structure.

[0118] Optionally, the driving device 125 includes a plurality of driving members, and the plurality of driving members are arranged at intervals.

[0119] As shown in FIGS. 5 and 6, in some embodiments, the jacking assembly 124 includes a jacking plate 126 and a telescopic member 127, wherein the jacking plate 126 is opposite to the tank body 123 and connected with the driving device 125, the telescopic member 127 is located between the jacking plate 126 and the tank body 123, and the two ends of the telescopic member 127 are connected with the jacking plate 126 and the tank body 123 respectively, and the driving device 125 can drive the jacking plate 126 to move vertically relative to the tank body 123 to change the length of the telescopic member 127.

[0120] In this embodiment, it is defined that the jacking assembly 124 includes the jacking plate 126 and the telescopic member 127, specifically, the jacking plate 126 is opposite to the tank body 123, the telescopic member 127 is located between the jacking plate 126 and the tank body 123, and the first end of the telescopic member 127 is connected with the jacking plate 126, and the second end of the telescopic member 127 is connected with the tank body 123.

[0121] Since the driving device 125 is connected with the jacking plate 126, that is, the driving device 125 drives the jacking plate 126 to move in the vertical direction relative to the tank body 123, the length of the telescopic piece 127 can be changed, that is, the jacking plate 126 moves in the vertical direction and changes the length of the telescopic piece 127, so that the volume of the part enclosed by the jacking plate 126 and the telescopic piece 127 changes, and then the volume of the whole liquid storage cavity 121 can be changed.

[0122] Specifically, when the fire truck 100 is in a non-combat state, that is, the jacking plate 126 is in a retracted position, the telescopic piece 127 has a first length, and the volume of the liquid storage cavity 121 is small, so the weight of the boom device 130 can be increased as much as possible within the weight requirement allowed by the chassis 110, thereby increasing the working height of the boom device 130 and increasing the fire extinguishing range, and then meeting the fire extinguishing requirements in various scenes.

[0123] When the fire truck 100 is in a combat state, the driving device 125 drives the jacking plate 126 to move in the direction away from the tank body 123 to the unfolded position, so that the telescopic piece 127 has a second length to increase the volume of the liquid storage cavity 121 and improve the liquid carrying capacity, and then the fire fighting efficiency and combat time can be improved, wherein the second length is greater than the first length. Moreover, since the volume of the liquid storage cavity 121 is increased, the mass of the chassis 110 of the fire truck 100 is increased, which effectively prevents the fire truck 100 from tipping over when the boom device 130 is unfolded, improves the stability of the boom device 130 after unfolding, and then improves the combat safety of the fire truck 100.

[0124] Optionally, the telescopic piece 127 comprises a high polymer piece. The high polymer piece comprises a fiber cloth.

[0125] Optionally, the tank body 123 comprises a metal piece or a plastic piece.

[0126] Optionally, the jacking plate 126 comprises a metal plate or a plastic plate.

[0127] In some embodiments, optionally, when the driving device 125 drives the jacking plate 126 to move in the direction close to the tank body 123, the jacking plate 126 can be in contact with the tank body 123, that is, the telescopic piece 127 is arranged on the inner side of the jacking plate 126 and the tank body 123, or on the outer side of the jacking plate 126 and the tank body 123, so that the jacking plate 126 can be in contact with the tank body 123 when the jacking plate 126 moves in the direction close to the tank body 123, thereby protecting the telescopic piece 127 and avoiding pressing the telescopic piece 127.

[0128] In this embodiment, when the fire fighting operation is completed, the driving device 125 can drive the jacking plate 126 to move towards the tank body 123, so that the jacking assembly 124 returns to the retracted position, facilitating the retraction of the boom device 130.

[0129] Specifically, when the jacking assembly 124 needs to be retracted, the jacking plate 126 is moved towards the tank body 123, and the jacking plate 126 can be in contact with the tank body 123, that is, when the jacking plate 126 returns to the retracted position, the jacking plate 126 is in contact with the tank body 123. On the one hand, during the retraction of the jacking plate 126, the jacking plate 126 can be limited to avoid excessive movement and interference with other structures, ensuring the smooth vertical movement of the jacking plate 126 and facilitating the rapid entry into the fire fighting state. On the other hand, since the jacking plate 126 is in contact with the tank body 123 when the jacking plate 126 is retracted, the telescopic member 127 can be avoided, which is beneficial to prolong the service life of the telescopic member 127.

[0130] As shown in FIG. 5, in some embodiments, the fire fighting truck 100 optionally further comprises a sealing member 128, which is arranged at the connection between the telescopic member 127 and the tank body 123, and / or the sealing member 128 is arranged at the connection between the telescopic member 127 and the jacking plate 126.

[0131] In this embodiment, it is defined that the fire fighting truck 100 further comprises the sealing member 128, specifically, the sealing member 128 is arranged at the connection between the telescopic member 127 and the jacking plate 126. Alternatively, the sealing member 128 is arranged at the connection between the telescopic member 127 and the tank body 123. Alternatively, the connection between the telescopic member 127 and the jacking plate 126, and the connection between the telescopic member 127 and the tank body 123 are respectively provided with the sealing member 128. Specifically, it can be arranged according to actual needs.

[0132] By arranging the sealing member 128, the connection between the telescopic member 127 and the jacking plate 126, and / or the connection between the telescopic member 127 and the tank body 123 can be sealed, the sealing property of the liquid storage cavity 121 is improved, when the volume in the liquid storage cavity 121 is large, the leakage at the connection between the jacking plate 126 and the telescopic member 127, and / or the connection between the telescopic member 127 and the tank body 123 is prevented, and the fire fighting efficiency and operation time are ensured.

[0133] As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, in some embodiments, the fire fighting truck 100 optionally further comprises a spraying assembly 170, which is arranged on the boom device 130 and can communicate with the liquid storage tank 120.

[0134] In this embodiment, the fire fighting truck 100 further comprises a spraying assembly 170, and specifically, the spraying assembly 170 is arranged on the arm support device 130, and the spraying assembly 170 is capable of communicating with the liquid storage tank 120, and when the fire fighting truck 100 is in a combat state, the liquid storage tank 120 can provide the spraying assembly 170 with fire extinguishing medium, so that the spraying assembly 170 sprays the fire extinguishing medium to extinguish fire.

[0135] Optionally, the spraying assembly 170 comprises a spraying pipeline and a spray gun, two ends of the spraying pipeline are respectively in communication with the spray gun and the liquid storage tank 120, the spraying pipeline is arranged on the plurality of movable arm supports 131, and the spray gun is arranged at the end of the last movable arm support 131 among the plurality of movable arm supports 131, which is conducive to further improving the fire extinguishing range of the fire fighting truck 100.

[0136] Optionally, the liquid storage tank 120 is further provided with a first interface, and the chassis 110 is further provided with a second interface, the first interface and the second interface are connected in cooperation, and the fire extinguishing medium in the liquid storage cavity 121 flows through the first interface, the second interface and the spraying pipeline in sequence and is sprayed out by the spray gun.

[0137] As shown in FIG. 1, in some embodiments, optionally, the chassis 110 comprises a body 114, a support turntable 115 and a leg assembly 116, wherein the support turntable 115 is arranged on the body 114, the arm support device 130 is connected with the support turntable 115, and the leg assembly 116 is arranged on the body 114.

[0138] In this embodiment, the chassis 110 comprises the body 114, the support turntable 115 and the leg assembly 116, and specifically, the support turntable 115 is arranged on the body 114, and the arm support device 130 is connected with the support turntable 115, that is, the arm support device 130 is capable of moving relative to the support turntable 115 to switch between the unfolded state and the retracted state.

[0139] The leg assembly 116 is arranged on the body 114, and it can be understood that the leg assembly 116 is capable of contacting the ground, thereby providing reliable support for the whole fire fighting truck 100 and improving the stability of the fire fighting truck 100 in combat.

[0140] According to a second aspect of the present application, a fire fighting equipment 200 is provided, which comprises at least one fire fighting truck 100 provided in any of the above embodiments, and thus has all the beneficial technical effects of the fire fighting truck 100, which will not be described herein again.

[0141] As shown in FIG. 7, further, the fire fighting equipment 200 further comprises a liquid supply vehicle 210, which is in communication with the liquid storage cavity 121 of the at least one fire fighting truck 100.

[0142] The fire-fighting equipment 200 provided by the embodiment of the present application comprises at least one fire truck 100 and a liquid supply vehicle 210, specifically, the liquid supply vehicle 210 is in communication with the liquid storage cavity 121 of the at least one fire truck 100, that is, the at least one fire truck 100 provided with the variable-volume liquid storage tank 120 is cooperated with the large-tank liquid-carrying vehicle (the liquid supply vehicle 210) to realize continuous liquid supply in the liquid storage cavity 121 and ensure that the at least one fire truck 100 can continuously fight, which is beneficial to further improve the fire-fighting duration and efficiency.

[0143] Optionally, the number of the fire trucks 100 is multiple, since the volume of the liquid storage tank 120 of each fire truck 100 is increased in the fighting state, the liquid supply vehicle 210 can fill the liquid storage tanks 120 of the multiple fire trucks 100 with liquid respectively and then leave to supplement the liquid to ensure that the multiple fire trucks 100 can continuously fight.

[0144] Optionally, the number of the liquid supply vehicles 210 is multiple, when at least one liquid supply vehicle 210 supplies liquid for the at least one fire truck 100, the rest of the liquid supply vehicles 210 go to supplement the liquid, so as to realize uninterrupted liquid supply and further realize continuous fighting of the at least one fire truck 100.

[0145] In the description of the present specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0146] In the description of the present specification, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0147] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fire apparatus characterized by, The fire fighting truck comprises: a chassis, an arm support device is arranged on the chassis, the arm support device can be switched between an unfolded state and a retracted state; a liquid storage tank is arranged on the chassis, the liquid storage tank has a liquid storage cavity, at least a part of the liquid storage tank can move vertically relative to the chassis to change the volume of the liquid storage cavity.

2. The fire fighting truck according to claim 1, wherein the chassis is provided with a liquid carrying groove, at least a part of the liquid storage tank is arranged in the liquid carrying groove to avoid the arm support device.

3. The fire fighting truck according to claim 1 or 2, wherein the chassis is further provided with a load surface, at least a part of the liquid storage tank can move relative to the chassis between a retracted position and an unfolded position; when at least a part of the liquid storage tank is in the retracted position, the side of the liquid storage tank away from the chassis in the vertical direction is flush with the load surface.

4. The fire fighting vehicle according to claim 1 or 2, characterized in that At least a part of the liquid storage tank can move relative to the chassis between a retracted position and an unfolded position; the arm support device comprises a plurality of movable arms, at least one of the movable arms can move relative to the remaining movable arms to switch the arm support device between the unfolded state and the retracted state, the plurality of movable arms comprises a first arm, the first arm is rotationally connected to the chassis; The fire fighting truck further comprises: a first detection member for detecting the angle value of the included angle between the first arm and the horizontal plane, when the angle value of the included angle is greater than or equal to a set value, at least a part of the liquid storage tank can move relative to the chassis from the retracted position to the unfolded position.

5. The fire apparatus of claim 4, wherein, Further comprising: a second detection member, when the arm support device is in the unfolded state and at least a part of the liquid storage tank is in the unfolded position, the second detection member is used to detect the distance between the side of the liquid storage tank away from the chassis in the vertical direction and the movable arms other than the first arm.

6. The fire apparatus of claims 1 or 2, wherein, The liquid storage tank is provided with a liquid discharge port, the liquid discharge port communicates with the liquid storage cavity; And / or, the chassis comprises a body, a support turntable and a leg assembly, the support turntable is arranged on the body, the arm support device is connected to the support turntable, and the leg assembly is arranged on the body; And / or, the fire fighting truck further comprises a spraying assembly, the spraying assembly is arranged on the arm support device and can communicate with the liquid storage tank.

7. The fire fighting vehicle according to claim 1 or 2, characterized in that The liquid storage tank comprises: a tank body; a jacking assembly movably connected to the tank body and surrounding the tank body to form the liquid storage cavity; a driving device connected to the jacking assembly, the driving device can drive the jacking assembly to move vertically relative to the tank body to change the volume of the liquid storage cavity.

8. The fire apparatus of claim 7, wherein, The jacking assembly comprises: a jacking plate opposite to the tank body and connected to the driving device; a telescopic member between the jacking plate and the tank body, two ends of the telescopic member are respectively connected to the jacking plate and the tank body, and the driving device can drive the jacking plate to move vertically relative to the tank body to change the length of the telescopic member.

9. The fire fighting truck according to claim 8, wherein In the case that the driving device drives the jacking plate to move towards the direction of approaching the tank body, the jacking plate can be in contact with the tank body. And / or, the fire fighting truck further comprises a sealing member, which is arranged at the connection between the telescopic member and the tank body, and / or the sealing member is arranged at the connection between the telescopic member and the jacking plate.

10. Fire fighting equipment, characterized in that Comprise: At least one fire fighting truck according to any one of claims 1 to 9; A liquid supply vehicle in communication with the liquid storage cavity of at least one fire fighting truck.

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