Firefighting robot

Abstract

This utility model discloses a fire-fighting robot capable of moving to the bottom of a vehicle battery. The fire-fighting robot includes a robot body, a lifting device, a lifting and breaking head, and a nozzle. The lifting device is disposed on the robot body, and the lifting and breaking head and the nozzle are disposed on the lifting device. The lifting device is configured to drive the lifting and breaking head and the nozzle to rise and fall relative to the robot body. The lifting and breaking head includes several serrations configured to cut the outer armor of the vehicle battery under the drive of the lifting device. The serrations are arranged in a ring, and the nozzle is disposed inside the ring of serrations, used to spray a battery fire extinguishing agent. This fire-fighting robot can efficiently and safely extinguish fires on vehicle batteries.

Description

Technical Field

[0001] This utility model relates to fire extinguishing equipment, and more particularly to a fire extinguishing robot. Background Technology

[0002] Vehicles are generally transported by roll-on / roll-off (Ro-Ro) ships. Ro-Ro ships have high loading and unloading efficiency and are therefore widely used; their fire prevention management and firefighting rescue measures are particularly important. In the event of a fire, the traditional rescue method involves the captain organizing a skilled crew to conduct fire reconnaissance, identify the source of the fire, the direction of its spread, and its development trend, formulate a feasible firefighting plan, and organize firefighting efforts. In particular, in situations with heavy smoke, firefighters must ventilate the area, then use water spray cannons as cover to gradually approach the fire source, covering the burning fuel tank with foam, cooling the fuel tanks of other vehicles with direct water jets, and simultaneously spraying the vehicle body and any open flames on the cargo. If a car's fuel tank has exploded and the oil fire has spread, foam must be used to cover a large area of ​​the deck to extinguish the oil fire, and then water cannons are used to extinguish the fire on the cargo carried by the vehicle.

[0003] This method of firefighting endangers the lives of firefighters. Furthermore, for new energy vehicles, their onboard batteries consist of numerous cells. When thermal runaway occurs inside the onboard battery due to short circuits, overheating, or other reasons, a fire in one cell can rapidly heat surrounding cells to the same degree, leading to a chain reaction that causes more batteries to catch fire. The fire spreads extremely quickly, making it difficult to control using traditional firefighting methods. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fire-extinguishing robot capable of efficiently and safely extinguishing fires on vehicle batteries.

[0005] According to a first aspect of the present invention, the fire extinguishing robot is capable of moving to the bottom of the vehicle battery, and the fire extinguishing robot includes a robot body, a lifting device, a lifting and breaking head, and a nozzle.

[0006] The lifting device is disposed on the robot body, the lifting demolition head and the nozzle are disposed on the lifting device, and the lifting device is configured to drive the lifting demolition head and the nozzle to rise and fall relative to the robot body;

[0007] The lifting and breaking head includes several saw teeth configured to cut the outer armor of the vehicle battery under the drive of the lifting device. The saw teeth are arranged in a ring, and the nozzle is located inside the ring of saw teeth. The nozzle is used to spray battery fire extinguishing agent.

[0008] The fire-extinguishing robot according to the embodiments of this utility model has at least the following beneficial effects:

[0009] When a vehicle's battery catches fire, the fire-fighting robot can move to the bottom of the battery. A lifting device drives the lifting and breaking head and nozzles to rise relative to the robot body, approaching the battery until several serrated edges contact and cut through the battery's outer armor, creating a ring-shaped cutting hole. The nozzle within the cutting hole injects the internal battery extinguishing agent into the battery, thus achieving automatic fire suppression. Because this structure can cut through the surface of the battery, it increases the contact area between the battery extinguishing agent and the battery, thereby improving the efficiency of cooling and fire suppression.

[0010] According to some embodiments of the present invention, the lifting device includes a lifting seat that can be raised and lowered relative to the robot body, the top surface of the lifting seat is used to support the vehicle battery, the lifting and breaking head is installed on the lifting seat, and the saw teeth protrude upward from the lifting seat.

[0011] According to some embodiments of the present utility model, the lifting device includes a lifting seat, a base, a first hinged arm group, a second hinged arm group, and a driving assembly. The lifting seat is disposed above the base, and the first hinged arm group and the second hinged arm group are hinged to each other and are disposed together between the lifting seat and the base.

[0012] The drive assembly is configured to drive one end of the first articulated arm assembly toward one end of the second articulated arm assembly to move the lifting seat away from the base, or to drive one end of the first articulated arm assembly away from one end of the second articulated arm assembly to move the lifting seat closer to the base.

[0013] According to some embodiments of the present invention, the lifting seat is provided with a first sliding groove, and the base is provided with a second sliding groove;

[0014] The first end of the first articulated arm assembly and the first end of the second articulated arm assembly are disposed in the first slide groove and are rotatable relative to the lifting seat, wherein one of the first articulated arm assembly and the second articulated arm assembly is slidable in the first slide groove.

[0015] The second end of the first hinge arm assembly and the second end of the second hinge arm assembly are disposed in the second slide groove and are rotatable relative to the base, wherein the other of the first hinge arm assembly and the second hinge arm assembly is slidable in the second slide groove.

[0016] According to some embodiments of the present invention, the drive assembly includes a motor, a lead screw assembly, and a slide block. The motor drives the lead screw assembly, the lead screw assembly is connected to the slide block, and one of the second ends of the first hinge arm assembly and the second hinge arm assembly is connected to the slide block.

[0017] The lead screw assembly is configured to drive the slide to bring one of the second ends of the first articulated arm assembly and the second end of the second articulated arm assembly closer to or further away from the other.

[0018] According to some embodiments of the present invention, the base is provided with a second sliding groove, and two sets of the second sliding groove are provided;

[0019] The first articulated arm assembly includes a first sub-arm and a second sub-arm, two connecting plates and multiple connecting shafts. The two connecting plates are respectively disposed at both ends of the slide block and are opposite to a second slide groove. Each connecting plate is provided with at least two connecting shafts. The connecting shafts are slidably engaged with the corresponding second slide groove and are rotatable relative to the base.

[0020] The first sub-arm is connected to a connecting shaft on one of the connecting plates, and the second sub-arm is connected to a connecting shaft on the other connecting plate.

[0021] According to some embodiments of this utility model, the first sub-arm and the second sub-arm are provided with notches, and when the distance between the lifting seat and the base is the smallest, part of the connecting shaft is located within the notch.

[0022] According to some embodiments of this utility model, the robot body includes a chassis and a shell. The shell covers the chassis and, together with the base plate, forms a mounting cavity. A window is provided on the shell.

[0023] The lifting device is disposed in the mounting cavity, and the lifting seat can fall back to the window or push the window upward.

[0024] According to some embodiments of the present invention, the robot body includes a chassis and a plurality of wheels, the lifting device is disposed on the chassis, and the plurality of wheels are distributed around the lifting device. The wheels include drive wheels and support wheels. The drive wheels are used to provide power for the movement of the robot body, and the support wheels and the drive wheels are supported together around the lifting device.

[0025] According to some embodiments of the present invention, the robot body includes a chassis and a shell, the shell being covered on the chassis and together with the base plate forming an installation cavity;

[0026] It also includes a fire extinguisher, which is disposed in the mounting cavity and connected to the nozzle.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the fire-fighting robot according to an embodiment of the present invention;

[0030] Figure 2 This is a bottom view of the fire-fighting robot according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the lifting device, lifting and breaking head, and nozzle of the fire-fighting robot according to an embodiment of the present utility model.

[0032] Figure 4 Another structural schematic diagram of the lifting device, lifting demolition head, and nozzle of the fire-fighting robot according to an embodiment of this utility model;

[0033] Figure 5 This is a side view of the lifting device, lifting and breaking head, and nozzle of the fire extinguishing robot according to an embodiment of the present invention.

[0034] Figure label:

[0035] 100. Robot body; 110. Chassis; 120. Shell; 120a. Window; 130. Walking wheel; 131. Drive wheel; 132. Support wheel;

[0036] 200, Lifting device; 210, Lifting seat; 210a, First slide groove; 220, Base; 220a, Second slide groove; 230, First articulated arm assembly; 231, First sub-arm; 232, Second sub-arm; 231a, Notch; 233, Connecting plate; 234, Connecting shaft;

[0037] 240. Second articulated arm assembly; 250. Drive assembly; 251. Motor; 252. Lead screw assembly; 253. Slide;

[0038] 300. Lifting and demolition head; 310. Sawtooth;

[0039] 400. Spray nozzle;

[0040] 500. Fire extinguisher. Detailed Implementation

[0041] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0043] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0046] In the description of the embodiments of this application, the technical terms "top", "bottom", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0047] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0048] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0049] Because the onboard batteries of new energy vehicles are located beneath the vehicle and covered with armor protection, traditional fire extinguishing agents such as dry powder and water-based agents cannot quickly penetrate into the battery pack. They can only function on the surface of the battery pack and cannot effectively suppress the thermal runaway reaction inside the battery. To address this, one technical solution provides a fire extinguishing device that can inject a specially formulated fire extinguishing agent into the battery pack through a lifting and armor-piercing method to interrupt the chain reaction of thermal runaway. However, the lifting structure has low armor-piercing capability, and the structure for injecting the fire extinguishing agent has low efficiency, affecting the fire extinguishing efficiency.

[0050] Please refer to the following for details. Figures 1-5 This application provides a fire-fighting robot that can move to the bottom of the vehicle battery, that is, to the bottom of the vehicle, to target the area of ​​the vehicle battery that needs to be extinguished and cooled.

[0051] Please refer to Figure 1 The fire-fighting robot includes a robot body 100, a lifting device 200, a lifting and demolition head 300, and a nozzle 400.

[0052] The robot body 100 has a moving function. A lifting device 200 is disposed on the robot body 100. A lifting and demolition head 300 and a nozzle 400 are disposed on the lifting device 200. The lifting device 200, the lifting and demolition head 300, and the nozzle 400 can move to the bottom of the vehicle under the drive of the robot body 100, and align the lifting and demolition head 300 with a preset area of ​​the vehicle battery. The preset area can be a high-temperature area. By obtaining the temperature distribution information of the vehicle battery through detection equipment, the high-temperature point is accurately located, ensuring that the lifting and demolition head 300 and the nozzle 400 are accurately aligned with the high-temperature area.

[0053] Please refer to Figure 3 and Figure 4The lifting device 200 is configured to drive the lifting breaching head 300 and the nozzle 400 to rise and fall relative to the robot body 100. The lifting breaching head 300 includes several serrations 310, configured to cut the outer armor of the vehicle battery under the drive of the lifting device 200. The serrations 310 are arranged in a ring, and the nozzle 400 is located inside the ring of serrations 310, spraying a battery fire extinguishing agent. The lifting device 200 ensures efficient armor penetration by precisely controlling the cutting force and speed of the serrations 310, while the nozzle 400 simultaneously sprays a special fire extinguishing agent that quickly penetrates into the battery, effectively suppressing thermal runaway reactions and improving fire extinguishing efficiency.

[0054] In the above embodiment, when a vehicle battery catches fire, the fire-fighting robot can move to the bottom of the vehicle battery. The lifting device 200 drives the lifting and breaking head 300 and the nozzle 400 to rise relative to the robot body 100 to approach the vehicle battery until several serrations 310 contact and cut the outer armor of the vehicle battery to form an annular cutting hole. The nozzle 400, located within the cutting hole, injects the internal battery fire extinguishing agent into the vehicle battery, thereby extinguishing the fire. Because this structure can cut and form a cutting hole on the surface of the vehicle battery, it increases the contact area between the battery fire extinguishing agent and the battery, thereby improving the efficiency of cooling and fire extinguishing.

[0055] Please refer to Figure 3 and Figure 5 In some embodiments, the lifting device 200 includes a lifting seat 210 that can be raised and lowered relative to the robot body 100. The top surface of the lifting seat 210 is used to support the vehicle battery. The lifting and breaking head 300 is mounted on the lifting seat 210, and the saw teeth 310 protrude upward from the lifting seat 210. It is understood that during the lifting and armor-breaking process, the lifting and breaking head 300 contacts and cuts the outer armor of the vehicle battery until the top surface of the lifting seat 210 supports the vehicle battery, at which point the lifting stroke ends. That is, the cutting depth of the lifting and breaking head 300 is limited by the height of the saw teeth 310 protruding upward from the lifting seat 210.

[0056] The lifting and breaking head 300 is located in the middle area of ​​the lifting base 210. The nozzle 400 can be an umbrella-shaped nozzle 400.

[0057] In some embodiments, the annularly arranged serrations 310 enclose a channel, with the nozzle 400 positioned within the channel. A closure is provided at the lower end of the channel to seal one end. Thus, when the lifting stroke ends, the upper end of the channel faces the inside of the battery, allowing the battery fire extinguishing agent to be sprayed onto the high-temperature area inside the vehicle battery. This creates a largely sealed space, enabling the sprayed battery fire extinguishing agent to fully diffuse under spray pressure.

[0058] Please refer to Figure 3 and Figure 4 In some embodiments, the lifting device 200 includes a lifting seat 210, a base 220, a first articulated arm assembly 230, a second articulated arm assembly 240, and a drive assembly 250.

[0059] A lifting seat 210 is positioned above a base 220, with the two spaced apart. A first hinged arm assembly 230 and a second hinged arm assembly 240 are hinged together and positioned between the lifting seat 210 and the base 220. The middle portion of the first hinged arm assembly 230 is hinged to the middle portion of the second hinged arm assembly 240, allowing both assemblies to rotate around their central hinge point.

[0060] The drive assembly 250 is configured to either drive one end of the first articulated arm assembly 230 closer to one end of the second articulated arm assembly 240, thereby moving the lifting seat 210 away from the base 220, or drive one end of the first articulated arm assembly 230 away from one end of the second articulated arm assembly 240, thereby moving the lifting seat 210 closer to the base 220. Specifically, when the robot body 100 is in a moving state, the distance between one end of the first articulated arm assembly 230 and one end of the second articulated arm assembly 240 is at its maximum, and the distance between the lifting seat 210 and the base 220 is at its minimum, meaning the fire-fighting robot has the lowest height and the best mobility, allowing it to move to the bottom of the vehicle battery. When the robot body 100 reaches the predetermined position, the drive assembly 250 is activated, and the distance between one end of the first articulated arm assembly 230 and one end of the second articulated arm assembly 240 gradually decreases, causing the lifting seat 210 to gradually move away from the base 220, increasing the height of the fire-fighting robot until the lifting and breaching operation is completed.

[0061] Understandably, during the lifting process, the gravity of the lifting seat 210 and the reaction force of the lifting process can be decomposed into two forces in two directions on the first articulated arm group 230 or the second articulated arm group 240. One direction is the opposite of the driving direction of the drive component 250, and the other is the direction of gravity. As the distance between one end of the first articulated arm group 230 and one end of the second articulated arm group 240 shortens, and as the first articulated arm group 230 and the second articulated arm group 240 get closer and closer to the vertical state, the component of the reaction force on the drive component 250 gradually decreases (at this time, the change in the magnitude of the force is not considered), thereby reducing the load on the drive component 250 and improving the stability and efficiency of the lifting process.

[0062] Please refer to Figure 3 and Figure 4 In some embodiments, the lifting seat 210 is provided with a first sliding groove 210a, and the base 220 is provided with a second sliding groove 220a.

[0063] The first end of the first articulated arm assembly 230 and the first end of the second articulated arm assembly 240 are disposed within the first slide groove 210a and are rotatable relative to the lifting seat 210. One of the first articulated arm assembly 230 and the second articulated arm assembly 240 is slidable within the first slide groove 210a. The second end of the first articulated arm assembly 230 and the second end of the second articulated arm assembly 240 are disposed within the second slide groove 220a and are rotatable relative to the base 220. The other of the first articulated arm assembly 230 and the second articulated arm assembly 240 is slidable within the second slide groove 220a.

[0064] Specifically, one implementation method is that the first end of the first hinge arm assembly 230 is fixed relative to the first slide groove 210a, and the first end of the second hinge arm assembly 240 can slide within the first slide groove 210a; while the second end of the first hinge arm assembly 230 can slide within the second slide groove 220a, and the second end of the second hinge arm assembly 240 is fixed relative to the second slide groove 220a. Alternatively, the first end of the second hinge arm assembly 240 can be fixed relative to the first slide groove 210a, and the first end of the first hinge arm assembly 230 can slide within the first slide groove 210a; while the second end of the second hinge arm assembly 240 can slide within the second slide groove 220a, and the second end of the first hinge arm assembly 230 is fixed relative to the second slide groove 220a.

[0065] The first slide groove 210a and the second slide groove 220a are used to guide and limit the movement. To further reduce the number of drive components 250, bearings can be provided at both ends of the first articulated arm assembly 230. The bearing at the first end of the first articulated arm assembly 230 can slide within the first slide groove 210a, and the bearing at the second end of the first articulated arm assembly 230 is fixed to the second slide groove 220a by a bearing seat. Correspondingly, the bearing at the first end of the second articulated arm assembly 240 is fixed to the first slide groove 210a by a bearing seat, and the bearing at the second end of the second articulated arm assembly 240 can slide within the second slide groove 220a.

[0066] Please refer to Figure 3 and Figure 4 In some embodiments, the drive assembly 250 includes a motor 251, a lead screw assembly 252, and a slide 253. The motor 251 drives the lead screw assembly 252, the lead screw assembly 252 is connected to the slide 253, and one of the second ends of the first articulated arm assembly 230 and the second ends of the second articulated arm assembly 240 is connected to the slide 253.

[0067] The lead screw assembly 252 is configured to move one of the second ends of the first articulated arm assembly 230 and the second end of the second articulated arm assembly 240 relatively closer to or further away from the other by driving the slide 253.

[0068] The lead screw assembly 252 includes a lead screw and a lead screw nut. The lead screw nut is installed on the slide 253 and can move along the lead screw axis. The lead screw is driven to rotate by the motor 251, thereby driving the slide 253 and the connected hinge arm end to make precise displacement.

[0069] In some specific embodiments, the base 220 is provided with a second sliding groove 220a, and two sets of the second sliding groove 220a are provided. The first hinge arm assembly 230 includes a first sub-arm 231 and a second sub-arm 232, two connecting plates 233 and a plurality of connecting shafts 234. The two connecting plates 233 are respectively disposed at both ends of the slide block 253 and are opposite to one of the second sliding grooves 220a. Each connecting plate 233 is provided with at least two connecting shafts 234. The connecting shafts 234 are slidably engaged with the corresponding second sliding groove 220a and can rotate relative to the base 220. The first sub-arm 231 is connected to the connecting shaft 234 on one of the connecting plates 233, and the second arm 232 is connected to the connecting shaft 234 on the other connecting plate 233.

[0070] Among them, the two sets of second slide grooves 220a correspond to the connecting shafts 234 of the first sub-arm 231 and the second sub-arm 232, respectively.

[0071] Furthermore, in some embodiments, the first sub-arm 231 and the second sub-arm 232 are provided with notches 231a. When the lifting seat 210 approaches the base 220 until the distance between the two is the smallest, part of the connecting shaft 234 is in the notch 231a, so that the lifting seat 210 can be lowered to a lower height.

[0072] The second articulated arm assembly 240 includes two sub-arms. The first ends of the two sub-arms are connected by a shaft, which engages with two first sliding grooves 210a. The second ends of the two sub-arms are connected by another shaft, which engages with two second sliding grooves 220a at both ends.

[0073] Please refer to Figure 1 and Figure 2 In some embodiments, the robot body 100 includes a chassis 110 and a shell 120. The shell 120 covers the chassis 110 and, together with the base plate, encloses a mounting cavity. A window 120a is provided on the shell 120. A lifting device 200 is disposed within the mounting cavity. The lifting seat 210 can fall back to the window 120a or push the window 120a upward. It is understood that a portion of the lifting device 200 (such as the drive assembly 250) is hidden within the mounting cavity, which can reduce the risk of moving parts being exposed in a fire environment.

[0074] In some embodiments, the robot body 100 includes a chassis 110 and a plurality of wheels 130, with a lifting device 200 disposed on the chassis 110 and the plurality of wheels 130 distributed around the lifting device 200. Thus, the reaction force of the lifting device 200 can be transmitted to the ground through the surrounding wheels 130, thereby enhancing the robot's stability.

[0075] The walking wheels 130 include drive wheels 131 and support wheels 132. The drive wheels 131 are connected to the drive components to realize the walking drive function, and the support wheels 132 provide additional support to ensure that the robot maintains its balance during lifting and walking.

[0076] In some embodiments, the fire-fighting robot also includes a fire extinguisher 500, which is disposed within the mounting cavity and connected to the nozzle 400 via a pipe. The fire extinguisher 500 controls the spraying of the extinguishing agent via a solenoid valve. Thus, there is no need for external fire-fighting equipment connected via pipes, which allows the fire-fighting robot to move freely without being restricted by pipes and quickly reach the vehicle to be extinguished.

[0077] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of protection.

Claims

1. Fire extinguishing robot, characterized in that, The fire-fighting robot can move to the bottom of the vehicle battery. The fire-fighting robot includes a robot body, a lifting device, a lifting and demolition head, and a nozzle. The lifting device is disposed on the robot body, the lifting demolition head and the nozzle are disposed on the lifting device, and the lifting device is configured to drive the lifting demolition head and the nozzle to rise and fall relative to the robot body; The lifting and breaking head includes several saw teeth configured to cut the outer armor of the vehicle battery under the drive of the lifting device. The saw teeth are arranged in a ring, and the nozzle is located inside the ring of saw teeth. The nozzle is used to spray battery fire extinguishing agent.

2. The fire extinguishing robot according to claim 1, characterized in that, The lifting device includes a lifting seat that can be raised and lowered relative to the robot body. The top surface of the lifting seat is used to support the vehicle battery. The lifting and breaking head is installed on the lifting seat, and the saw teeth protrude upward from the lifting seat.

3. The fire extinguishing robot according to claim 1, characterized in that, The lifting device includes a lifting seat, a base, a first hinged arm group, a second hinged arm group, and a drive assembly. The lifting seat is disposed above the base, and the first hinged arm group and the second hinged arm group are hinged to each other and are disposed together between the lifting seat and the base. The drive assembly is configured to drive one end of the first articulated arm assembly toward one end of the second articulated arm assembly to move the lifting seat away from the base, or to drive one end of the first articulated arm assembly away from one end of the second articulated arm assembly to move the lifting seat closer to the base.

4. The fire extinguishing robot according to claim 3, characterized in that, The lifting seat is provided with a first sliding groove, and the base is provided with a second sliding groove; The first end of the first articulated arm assembly and the first end of the second articulated arm assembly are disposed in the first slide groove and are rotatable relative to the lifting seat, wherein one of the first articulated arm assembly and the second articulated arm assembly is slidable in the first slide groove. The second end of the first hinge arm assembly and the second end of the second hinge arm assembly are disposed in the second slide groove and are rotatable relative to the base, wherein the other of the first hinge arm assembly and the second hinge arm assembly is slidable in the second slide groove.

5. The fire extinguishing robot according to claim 3, characterized in that, The drive assembly includes a motor, a lead screw assembly, and a slide. The motor drives the lead screw assembly, the lead screw assembly is connected to the slide, and one of the second ends of the first hinge arm assembly and the second hinge arm assembly is connected to the slide. The lead screw assembly is configured to drive the slide to bring one of the second ends of the first articulated arm assembly and the second end of the second articulated arm assembly closer to or further away from the other.

6. The fire extinguishing robot according to claim 5, characterized in that The base is provided with a second sliding groove, and two sets of the second sliding groove are provided; The first articulated arm assembly includes a first sub-arm and a second sub-arm, two connecting plates and multiple connecting shafts. The two connecting plates are respectively disposed at both ends of the slide block and are opposite to a second slide groove. Each connecting plate is provided with at least two connecting shafts. The connecting shafts are slidably engaged with the corresponding second slide groove and are rotatable relative to the base. The first sub-arm is connected to a connecting shaft on one of the connecting plates, and the second sub-arm is connected to a connecting shaft on the other connecting plate.

7. The fire-fighting robot according to claim 6, characterized in that, The first sub-arm and the second sub-arm are provided with notches. When the distance between the lifting seat and the base is the smallest, part of the connecting shaft is located within the notch.

8. The fire extinguishing robot according to claim 3, characterized in that, The robot body includes a chassis and a shell. The shell covers the chassis and together with the chassis, forms a mounting cavity. The shell has a window. The lifting device is disposed in the mounting cavity, and the lifting seat can fall back to the window or push the window upward.

9. The fire extinguishing robot according to claim 1, characterized in that, The robot body includes a chassis and multiple wheels. The lifting device is mounted on the chassis, and the multiple wheels are distributed around the lifting device. Each wheel includes a drive wheel and a support wheel. The drive wheel provides power for the movement of the robot body, and the support wheel and the drive wheel together support the robot body around the lifting device.

10. The fire extinguishing robot according to claim 1, characterized in that, The robot body includes a chassis and a shell, the shell being covered on the chassis and together with the chassis forming an installation cavity; It also includes a fire extinguisher, which is disposed in the mounting cavity and connected to the nozzle.

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