A damping detection assembly for fire extinguishing robots and a fire extinguishing inspection robot with the damping detection assembly
Patent Information
- Application Number
- CN202522171741.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-10-14
AI Technical Summary
然而螺栓仍需扭矩扳手拆装,现场戴高温手套几乎无法操作;多次拆装后螺纹滑丝,需整体更换云台,维护成本高
本实用新型公开了一种灭火机器人用减震式检测总成及具有该减震式检测总成的消防灭火巡检机器人。
Smart Images

Figure CN224871789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire-fighting robots, specifically a shock-absorbing detection assembly for fire-fighting robots and a fire-fighting inspection robot having the shock-absorbing detection assembly. Background Technology
[0002] Due to the frequent occurrence of fire accidents in my country in recent years, the work in the field of fire protection has received increasing attention from all sectors of society.
[0003] In extremely harsh environments at fire scenes, firefighters face immense difficulties in their firefighting and rescue operations. They must operate in high-temperature environments with high concentrations of toxic and harmful gases, seriously threatening their lives. In such situations, the use of firefighting robots can largely solve this problem. Robots can replace firefighters in performing certain dangerous tasks and buy precious time during intense firefighting and rescue operations, ensuring the timeliness and scientific rigor of the rescue mission.
[0004] The identification units that existing robots come with (visible / infrared cameras, gas sensors, laser rangefinders, etc.) are high-precision devices that are extremely sensitive to vibration, impact, and temperature gradients.
[0005] Existing technologies generally employ the following two installation methods: 1. Rigid flange connection: The camera is directly secured to the top of the robot's gimbal or main body via an aluminum alloy or stainless steel flange.
[0006] The solution has a simple structure, but the impact and high-frequency vibration generated by the robot walking, overcoming obstacles, and the recoil of the fire monitor are directly transmitted to the camera, resulting in: severe image jitter, increased false alarm rate of the recognition algorithm; and cracking of the adhesive layer of the internal optical components of the camera.
[0007] 2. Elastic washer + bolt connection Some manufacturers add a 1–2 mm silicone gasket between the flange and the camera to absorb vibration. However, the bolts still require a torque wrench for disassembly and assembly, which is almost impossible to do on-site while wearing high-temperature gloves; after repeated disassembly and assembly, the threads become stripped, requiring the entire pan-tilt unit to be replaced, resulting in high maintenance costs.
[0008] The existing patent CN 115317840 A-Firefighting Robot, Firefighting Robot Swarm and Firefighting Method does not clearly disclose the technical content that solves the above-mentioned technical problems.
[0009] Therefore, in order to improve or solve at least one of the above-mentioned technical problems, it is necessary to optimize the design of existing firefighting robots. Utility Model Content
[0010] The purpose of this invention is to provide a detection assembly for fire-fighting robots that can extend the service life of the identification unit.
[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A shock-absorbing detection assembly for a fire-fighting robot includes a fixed cylinder, which is connected to a mounting platform via a buffer structure; the mounting platform is equipped with a recognition unit. The mounting buffer structure includes a mounting base connected to a fixed cylinder, and the mounting base is connected to a fixed base through a shock-absorbing unit.
[0012] The damping unit includes a first damping unit and a second damping unit, wherein the first damping unit and the second damping unit are stacked together. The first damping unit includes at least two first damping pads; the second damping unit includes at least two second damping pads.
[0013] The first damping pad and the second damping pad have different hardnesses; the first damping pad has a harder hardness than the second damping pad, and each of the second damping pads is arranged between adjacent first damping pads.
[0014] The mounting platform and the mounting base are connected by a locking mechanism; The locking mechanism includes a locking block mounted on the mounting platform and a hook block mounted on the mounting base; the locking block has a locking groove, and the hook block can be hooked into the locking groove of the locking block; The card block passes through the shock absorption unit and connects to the mounting block on the mounting base.
[0015] The mounting base is hollow inside to form an inner mounting cavity; the hanging block is arranged in the inner mounting cavity; the side of the mounting base is provided with a lateral chamber; the lateral chamber is distributed or connected to the inner mounting cavity at intervals.
[0016] One end of the hook block is rotatably connected to the inner wall of the mounting cavity; the other end can extend toward the locking block; the hook block is also connected to a return mechanism, the return mechanism includes a connecting spring, one end of the connecting spring is connected to the hook block, and the other end is connected to the inner wall of the mounting cavity; the connecting spring can pull the hook block to swing toward the side closer to the locking block.
[0017] The mounting block is connected to the mounting cavity via a rotating component. The rotating component includes a limiting plate disposed on the mounting cavity. The limiting plate is connected to the mounting block via a rotating rod. The mounting block can rotate on the limiting plate via the rotating rod. The rotating rod extends from the mounting cavity to the lateral chamber.
[0018] The rotating rod is connected to a knob.
[0019] The lateral chamber is connected to a door panel unit, which includes a closing plate. The closing plate is connected to the mounting base via a magnetic unit.
[0020] A fire extinguishing and inspection robot includes a base on which a robot body is mounted; the robot body is equipped with the shock-absorbing inspection assembly for the fire extinguishing robot; and the robot body is also equipped with a fire extinguishing unit.
[0021] The advantages of this utility model are: This utility model discloses a shock-absorbing inspection assembly for a fire-fighting robot and a fire-fighting inspection robot having the shock-absorbing inspection assembly.
[0022] This invention, through the combined use of a fixed cylinder, a mounting buffer structure, and a mounting platform, enables the identification unit to be flexibly connected to the robot body, thus preventing the identification unit from being subjected to significant external impacts during actual use due to the robot's operation.
[0023] Meanwhile, the present invention, through the setting of the locking mechanism, can easily realize the connection between the fixed cylinder and the mounting platform, thereby realizing the installation and fixation of the identification unit on the robot body. Attached Figure Description
[0024] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A magnified view of a portion of area A; Figure 3 This is a partial three-dimensional structural diagram of the installation buffer structure of this utility model; Figure 4 This is a partial cross-sectional view of the installation buffer structure of this utility model.
[0025] In the diagram: 1. Base; 2. Robot body; 3. Fixing cylinder; 4. Mounting platform; 5. Locking block; 6. Rotating rod; 7. Hanging block; 8. Fixing plate; 9. Connecting spring; 15. Knob; 16. Fixing seat; 17. Mounting seat; 18. Camera; 19. Closing plate; 20. First fixing component; 21. Translation groove; 22. First shock-absorbing pad; 23. Second shock-absorbing pad. Detailed Implementation
[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.
[0027] A shock-absorbing detection assembly for a fire-fighting robot includes a fixed cylinder 3, which is connected to a mounting platform 4 via a mounting buffer structure. The mounting platform 4 is equipped with an identification unit. The mounting buffer structure includes a mounting seat 17 connected to the fixed cylinder 3, which is connected to a fixed seat via the shock-absorbing unit. The fixed seat is connected to the mounting platform 4. This invention, through the coordinated use of the fixed cylinder 3, the mounting buffer structure, and the mounting platform 4, enables the identification unit to be flexibly connected to the robot body 2, preventing the identification unit from being subjected to significant external impact forces during robot operation.
[0028] In this invention, the fixed cylinder 3 is connected to the robot body 2, and the mounting platform 4 is used to connect the recognition unit, which can be some cameras or sensors or other devices.
[0029] The mounting platform 4 of this utility model is connected to the fixed cylinder 3 through a mounting buffer structure. This arrangement essentially realizes the installation and fixation of the recognition unit on the robot body 2.
[0030] The shock absorption unit described in this utility model includes a first shock absorption unit and a second shock absorption unit, which are stacked together. The first shock absorption unit includes at least two first shock absorption pads 22, and the second shock absorption unit includes at least two second shock absorption pads 23. By setting up the first and second shock absorption units, this utility model can achieve shock absorption and buffering of the recognition unit, avoiding the impact of robot operation vibration on the service life of the recognition unit.
[0031] In this utility model, the mounting base 17 is connected to the fixed cylinder 3. The connection method can be bolt, thread, or welding, and the specific connection method can be selected according to the needs. The fixed base is connected to the shock absorption unit. The locking block 5 on the subsequent mounting platform 4 passes through the fixed base, the shock absorption unit, and connects to the hanging block 7 on the mounting base 17. Based on the sequential stacking of the fixed cylinder 3, the mounting base 17, the shock absorption unit, the fixed base, and the mounting platform 4, the support frame height of the identification unit is realized.
[0032] In this invention, the first damping pad 22 and the second damping pad 23 have different hardnesses; the first damping pad 22 has a higher hardness than the second damping pad 23, and each of the second damping pads 23 is arranged between adjacent first damping pads 22. Based on the above design, it can be seen that the damping unit of this invention requires the outer damping pad to have greater strength to ensure the overall structural stability of the damping unit, while the middle damping pad has less strength, which is beneficial for energy absorption and buffering during actual use.
[0033] In this utility model, the mounting platform 4 and the mounting base 17 are connected by a locking mechanism; the locking mechanism in this utility model plays a good role in connection and fixation, mainly to realize the connection and installation of the fixed base and the mounting base 17.
[0034] Specifically, the locking mechanism in this utility model includes a locking block 5 disposed on the mounting platform 4 and a hook block 7 disposed on the mounting base 17; the locking block 5 is provided with a slot, and the hook block 7 can be hooked into the slot of the locking block 5; the locking block 5 passes through the shock absorption unit and is connected to the hook block 7 on the mounting base 17; based on the above design, it can be seen that the mounting platform 4 and the mounting base 17 of this utility model are essentially two hooks arranged opposite each other and hooked together, making the overall connection relatively convenient.
[0035] In this utility model, the mounting base 17 is hollow inside to form a mounting cavity 1702; the hook block 7 is arranged in the mounting cavity 1702; the mounting base 17 has a lateral chamber 1701 on its side; the lateral chamber 1701 and the mounting cavity 1702 are spaced apart or connected; based on the arrangement of the mounting cavity 1702 and the lateral chamber 1701, the weight of the mounting base 17 can be reduced, while the hook block 7 can be embedded.
[0036] Furthermore, in this invention, one end of the hook block 7 is rotatably connected to the inner wall of the mounting cavity 1702; the other end can extend toward the locking block 5; the hook block 7 is also connected to a return mechanism, which includes a connecting spring 9, one end of which is connected to the hook block 7, and the other end is connected to the inner wall of the mounting cavity 1702; the connecting spring 9 can pull the hook block 7 to swing closer to the locking block 5; the return mechanism in this invention helps to ensure the stability of the connection between the hook block 7 and the locking block 5. Without the action of external force, the locking block 5 will not detach from the hook block 7, ensuring the stability of the connection between the mounting base 17 and the mounting platform 4, and thus ensuring the stability of the connection between the recognition unit and the robot body 2.
[0037] In this utility model, the hanging block 7 is connected to the mounting cavity 1702 via a rotating component. The rotating component includes a limiting plate 14 disposed on the mounting cavity 1702. The limiting plate 14 is connected to the hanging block 7 via a rotating rod 6. The hanging block 7 can rotate on the limiting plate 14 via the rotating rod 6. The rotating rod 6 extends from the mounting cavity 1702 to the lateral chamber 1701. The rotating rod 6 is connected to a knob 15. In subsequent use, the rotating rod 6 is controlled to rotate via the knob 15, thereby controlling the rotating rod 6 to drive the hanging block 7 to rotate, thereby realizing the loosening of the hanging block 7 from the locking block 5, which facilitates the subsequent replacement of the mounting platform 4 and the identification unit.
[0038] In this invention, the lateral chamber 1701 is connected to a door panel unit, which includes a closing plate. The closing plate is connected to the mounting base 17 via a magnetic unit. The closing plate acts as a door panel, which can close the lateral chamber 1701. In addition, in this invention, the lateral chamber 1701 can be used to arrange the knob 15, preventing the knob 15 from being exposed. The magnetic unit facilitates the closing of the closing plate on the side of the mounting base 17.
[0039] A fire-fighting inspection robot includes a base 1, on which a robot body 2 is mounted; the robot body 2 is equipped with the shock-absorbing detection assembly for the fire-fighting robot; the robot body 2 also has a fire-fighting unit. This invention, through the combined use of a fixing cylinder 3, a mounting buffer structure, and a mounting platform 4, enables the identification unit to be flexibly connected to the robot body 2, avoiding significant external impact on the identification unit during actual use due to robot operation. Simultaneously, the locking mechanism facilitates the connection between the fixing cylinder 3 and the mounting platform 4, thereby achieving the installation and fixation of the identification unit on the robot body 2. Example
[0040] Please see Figures 1-3 This utility model provides a technical solution: A fire-fighting and inspection robot includes a base 1, a robot body 2 mounted on top of the base 1, a fixed cylinder 3 mounted on one top end of the robot body 2, and a mounting platform 4 connected to the top of the fixed cylinder 3 via a buffer structure. A mounting plate is mounted on one top end of the mounting platform 4, and cameras 18 are mounted on both ends of one side of the mounting plate. In this invention, the buffer structure includes a mounting seat 17 connected to the fixed cylinder 3, and the mounting seat 17 is connected to the fixed seat via a shock-absorbing unit. The fixed seat is connected to the mounting platform 4. The shock-absorbing unit includes two sets of first shock-absorbing pads 22 and two sets of second shock-absorbing pads 23. The buffer structure is also installed... The device also includes a locking mechanism for locking the positions of the fixed cylinder 3 and the mounting platform 4. A knob 15 is used to release the lock between the fixed cylinder 3 and the mounting platform 4. A door panel unit is used to enclose the knob 15. When in use, the device can lock the positions of the fixed cylinder 3 and the mounting platform 4 through the locking mechanism. The knob 15 is connected to the rotating rod 6 to release the lock between the fixed cylinder 3 and the mounting platform 4. The door panel unit is used to enclose the operating end of the knob 15. The structure is simple and easy to operate. Workers can quickly disassemble and assemble the device by pressing and twisting, which reduces the workload of workers, improves work efficiency, and facilitates timely replacement of aging parts.
[0041] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the shock-absorbing and buffering structure includes a mounting base 17 sleeved on one end of the outer wall of the fixed cylinder 3, a fixed base 16 sleeved on the bottom end of the outer wall of the mounting platform 4, two sets of first shock-absorbing pads 22 respectively overlapping the opposite surfaces of the mounting base 17 and the fixed base 16, two sets of second shock-absorbing pads 23 respectively overlapping the opposite surfaces of the two sets of first shock-absorbing pads 22, and a docking hole is opened at one end of the interior of each of the two sets of first shock-absorbing pads 22 and the two sets of second shock-absorbing pads 23. A locking block 5 is installed on one side of the top of the fixed base 16 at the docking hole, and the outer wall of the locking block 5 fits against the inner wall of the docking hole. A groove is opened on the outer wall of the mounting base 17 corresponding to the docking hole, and the locking block 5 and the groove are slidably connected. A hanging block 7 is provided inside the mounting base 17, and the hanging block 7 can be hung on the locking block 5. The hanging block 7 is fixedly connected to the rotating rod 6, and the rotating rod 6 acts as a rotating rod. The hanging block 7 is then connected to the limiting plate 14 through the rotating rod 6.
[0042] In this utility model, the fixed base 16 is placed close to the mounting base 17, and the first shock-absorbing pad 22 and the second shock-absorbing pad 23 are placed between the fixed base 16 and the mounting base 17, so that the two sets of second shock-absorbing pads 23 are in contact with each other, so that the port of the mounting platform 4 is aligned with the port of the fixed cylinder 3. As the two gradually approach each other, the locking block 5 will slide into the inner side of the docking hole, and when squeezed, the locking block 5 will be connected to the hanging block 7.
[0043] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a fixing plate 8 is installed on one side of the inner wall of the mounting cavity 1702. A connecting spring 9 is installed between the hanging block 7 and the fixing plate 8. The locking block 5 is provided with a locking groove, and the hanging block 7 can also be provided with a locking groove or a protrusion. The end of the hanging block 7 can be hooked into the locking groove of the locking block 5 to realize the connection between the locking block and the locking groove.
[0044] Subsequently, the fixed base 16 is pressed, and the two sets of first shock-absorbing pads 22 and second shock-absorbing pads 23 begin to retract. The locking block 5 also enters the inner side of the installation cavity 1702 and contacts the hanging block 7. Due to the mutual compression between the two, the hanging block 7 rotates around the rotating rod 6, and the connecting spring 9 is stretched accordingly. After the locking block 5 and the hanging block 7 are engaged, the connecting spring 9 pulls the hanging block 7 with a tendency to move to the left. Based on this design, the stability of the connection between the hanging block 7 and the locking block 5 can be guaranteed without the action of external force.
[0045] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the knob 15 includes a lateral chamber 1701 opened on one side of the inner wall of the mounting cavity 1702. The end of the hook block 7 away from the locking block 5 is equipped with a limiting plate 14 connected to the mounting cavity 1702. The mounting base 17 has an extension groove opened on one side of the mounting cavity 1702. The mounting cavity 1702 is connected to the lateral chamber 1701 through the extension groove. The extension groove facilitates the lateral insertion of the rotating rod 6.
[0046] A knob 15 is installed at one end of the rotating rod 6 that extends into the lateral chamber 1701. Furthermore, when maintenance or replacement of new parts is required, the knob 15 can be turned to rotate the rotating rod 6, which in turn drives the hook block 7 to rotate, thereby disengaging the hook block 7 from the locking block 5 and enabling the replacement and maintenance of the mounting platform 4 or the identification unit.
[0047] In this embodiment, as Figure 1-4 As shown, the door panel unit includes a closing groove formed on the outer wall of the mounting base 17. The inner side of the closing groove communicates with the inner side of the lateral chamber 1701. A closing plate 19 is slidably connected to the inner side of the closing groove. The length of the closing plate 19 is smaller than the length of the closing groove, and the length of the closing groove is larger than the length of the lateral chamber 1701. A first fixing member 20 is embedded at one end of the closing plate 19. A second fixing member corresponding to the first fixing member 20 is embedded on one side of the inner wall of the closing groove. A latching groove is formed on one side of the closing plate 19. Translation grooves 21 are formed on both sides of the inner wall of the closing groove. Translation blocks that are slidably connected to the translation grooves 21 are installed on both sides of the closing plate 19. The first fixing member 20... One of the first and second fixing parts is a first magnet, and the other of the first and second fixing parts is a second magnet. The magnetic poles of the first and second magnets are opposite and attract each other. Furthermore, after assembly, the latching slot can drive the closing plate 19 to slide inside the closing slot, and the translation block can slide inside the translation slot 21 to restrict the position of the closing plate 19. The first fixing part 20 on the closing plate 19 is attached to the inner wall of the closing slot, so that the first fixing part 20 can be attracted to the iron block to position the closing plate 19. This allows the closing plate 19 to cover the knob 15 inside the extension slot, preventing personnel from accidentally touching the knob 15 after assembly and causing the connected parts to loosen.
[0048] The robot body 2 is also equipped with a fire extinguishing unit; there are many types of fire extinguishing units, and the innovation of this utility model is not in the structure of the fire extinguishing unit, so the specific structure will not be described in detail. The conventional choice can be one of the following three schemes: Option 1: Fire monitor spray system; it sprays water or foam extinguishing agent under high pressure and is suitable for fire sources at long distances and over a wide area; the system usually includes an angle sensor, an embedded controller and a driver, which can automatically adjust the spray angle and direction. Some options also combine a drone vision system for fire location and aiming.
[0049] Option 2: Spray / jet device; The robot is equipped with pressurized spray pipes, regulating pipes, and steering adjusters to achieve multi-angle and multi-height extinguishing agent spraying; some solutions also include an electric telescopic mechanism to adjust the spray angle and height, improving fire extinguishing flexibility.
[0050] Option 3: Modular fire extinguishing system (water / foam / dry powder) The robot can change the fire extinguishing module according to the type of fire, such as water-based, foam or dry powder fire extinguishing system; some small mobile robots support quick replacement of fire extinguishing agent supply components to adapt to different fire scenarios.
[0051] The implementation principle of this utility model is as follows: the fixed seat 16 is brought close to the mounting seat 17, and the first shock-absorbing pad 22 and the second shock-absorbing pad 23 are placed between the fixed seat 16 and the mounting seat 17, so that the two sets of second shock-absorbing pads 23 are in contact with each other, so that the port of the mounting platform 4 is aligned with the port of the fixed cylinder 3. As the two gradually approach each other, the locking block 5 will engage with the hanging block 7, thereby realizing the installation and fixation of the mounting platform 4 on the fixed cylinder 3.
[0052] When maintenance or replacement of parts is required, the knob 15 can be turned to rotate the rotating rod 6, which in turn rotates the hook block 7, thus separating the hook block 7 from the locking block 5, thereby enabling the disassembly and replacement of the corresponding parts.
[0053] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.
[0054] Obviously, the specific implementation of this utility model is not limited to the above-mentioned methods. Any non-substantial improvements made using the inventive concept and technical solution of this utility model are within the protection scope of this utility model.
Claims
1. A shock-absorbing detection assembly for a fire-fighting robot, characterized in that, The device includes a fixed cylinder, which is connected to a mounting platform via a mounting buffer structure; the mounting platform is equipped with an identification unit. The mounting buffer structure includes a mounting base connected to a fixed cylinder, and the mounting base is connected to a fixed base through a shock-absorbing unit.
2. The shock-absorbing detection assembly for a fire-fighting robot according to claim 1, characterized in that, The damping unit includes a first damping unit and a second damping unit, which are stacked together. The first damping unit includes at least two first damping pads; the second damping unit includes at least two second damping pads.
3. The shock-absorbing detection assembly for a fire-fighting robot according to claim 2, characterized in that, The first damping pad and the second damping pad have different hardnesses; the first damping pad has a harder hardness than the second damping pad, and each of the second damping pads is arranged between adjacent first damping pads.
4. The shock-absorbing detection assembly for a fire-fighting robot according to claim 1, characterized in that, The mounting platform and the mounting base are connected by a locking mechanism; The locking mechanism includes a locking block mounted on the mounting platform and a hook block mounted on the mounting base; the locking block has a locking groove, and the hook block can be hooked into the locking groove of the locking block; The card block passes through the shock absorption unit and connects to the mounting block on the mounting base.
5. The shock-absorbing detection assembly for a fire-fighting robot according to claim 4, characterized in that, The mounting base is hollow inside to form an inner mounting cavity; the hanging block is arranged in the inner mounting cavity; the side of the mounting base is provided with a lateral chamber; the lateral chamber is distributed or connected to the inner mounting cavity at intervals.
6. The shock-absorbing detection assembly for a fire-fighting robot according to claim 5, characterized in that, One end of the hook block is rotatably connected to the inner wall of the mounting cavity; the other end can extend toward the locking block; the hook block is also connected to a return mechanism, the return mechanism includes a connecting spring, one end of the connecting spring is connected to the hook block, and the other end is connected to the inner wall of the mounting cavity; the connecting spring can pull the hook block to swing toward the side closer to the locking block.
7. A shock-absorbing detection assembly for a fire-fighting robot according to claim 6, characterized in that, The mounting block is connected to the mounting cavity via a rotating component. The rotating component includes a limiting plate disposed on the mounting cavity. The limiting plate is connected to the mounting block via a rotating rod. The mounting block can rotate on the limiting plate via the rotating rod. The rotating rod extends from the mounting cavity to the lateral chamber.
8. The shock-absorbing detection assembly for a fire-fighting robot according to claim 7, characterized in that, The rotating rod is connected to a knob.
9. A shock-absorbing detection assembly for a fire-fighting robot according to claim 7, characterized in that, The lateral chamber is connected to a door panel unit, which includes a closing plate. The closing plate is connected to the mounting base via a magnetic unit.
10. A fire-fighting and inspection robot, characterized in that, The system includes a base on which a robot body is mounted; the robot body is provided with a shock-absorbing detection assembly for a fire-fighting robot as described in any one of claims 1-8; and the robot body is also provided with a fire-fighting unit.