Automatic fire-fighting inspection vehicle

Abstract

The utility model relates to the field of fire-fighting equipment, and discloses an automatic fire-fighting and fire-extinguishing inspection vehicle which comprises a mounting frame, crawler belt assemblies symmetrically mounted on the two sides of the mounting frame, a top shell fixedly arranged at the upper end of the mounting frame, a sensor assembly movably connected to one side face of the top shell, a storage box arranged in the center of the mounting frame, and a fire-extinguishing tank detachably mounted in the storage box. The top of the fire extinguishing tank is connected to the storage box through a tank cover, a stirring device is arranged in the fire extinguishing tank and connected to a speed reduction assembly in the mounting frame through a coupler, the bottom of the fire extinguishing tank is connected with a spray pipe assembly through a bolt, and the spray pipe assembly penetrates through the top shell and extends out along the upper end of the top shell. The driving wheel is connected to a motor arranged in the mounting frame through a transmission assembly.

Description

Technical Field

[0001] This application belongs to the field of fire protection equipment technology, specifically relating to an automatic fire extinguishing and inspection vehicle. Background Technology

[0002] Fires caused by the operation of power equipment in substations are on the rise, especially those involving large transformers and oil-filled equipment such as high-resistance transformers. The fire hazards of power equipment cannot be ignored. With the improvement of the automation level of substations, higher requirements are placed on fire safety, reliability, fire-fighting efficiency and preventive measures.

[0003] In my country, ultra-high voltage (UHV) refers to DC voltage levels of ±800 kV and above and AC voltage levels of 1000 kV and above. Due to the high voltage levels, a fire inside an UHV substation can cause incalculable property damage. Therefore, UHV substations in China are currently equipped with dedicated fire brigades and other fire and rescue equipment for assistance.

[0004] Ultra-high voltage (UHV) substations have dense electrical equipment and complex operating environments. Existing UHV substations often have fire hydrants located outdoors, especially near the main transformer. Inside UHV substations, real-time fire detection systems are installed to detect fire sources and conditions in real time, enabling rapid initial response through nearby fire hydrants.

[0005] However, since existing ultra-high voltage automatic fire extinguishing systems are generally fixed installations, and flames spread in all directions when a fire breaks out, fixed fire hydrants alone cannot achieve the desired effect of extinguishing the initial fire. Utility Model Content

[0006] This application provides an automatic fire extinguishing and inspection vehicle to solve the technical problem that the aforementioned fixed fire hydrants cannot achieve ideal initial fire suppression.

[0007] The technical solution adopted in this application is as follows:

[0008] An automatic fire extinguishing and inspection vehicle includes a mounting frame with symmetrically mounted track assemblies on both sides. A top shell is fixedly mounted on the upper end of the mounting frame, and a sensor assembly is movably connected to one side of the top shell. A storage box is located in the center of the mounting frame, and a fire extinguishing tank is detachably installed inside the storage box. The top of the fire extinguishing tank is connected to the storage box via a tank cover. A stirring device is installed inside the fire extinguishing tank and is connected to a reduction gear assembly inside the mounting frame via a coupling. The bottom of the fire extinguishing tank is connected to a nozzle assembly via bolts. The nozzle assembly passes through the top shell and extends out along the upper end of the top shell. The track assemblies are wound around drive wheels and idler wheels on both sides of the mounting frame, and the drive wheels are connected to a motor installed inside the mounting frame via a transmission assembly.

[0009] Optionally, the stirring device includes a vertical drive shaft passing through the center of the top of the fire extinguisher and stirring blades fixed to the outer periphery of the drive shaft in an alternating manner. The top of the drive shaft is connected to the output shaft of the reduction assembly via a coupling.

[0010] Optionally, the reduction assembly consists of a pair of meshing worm gears and worm shafts. The worm is connected to the motor output shaft via a small pulley fixed coaxially to it and a synchronous belt driven by a large pulley fixed coaxially to the motor. The worm gear is fixed on the worm gear seat at the top of the mounting bracket.

[0011] Optionally, the nozzle assembly includes a connecting pipe and a nozzle, with one end of the connecting pipe bolted to the outer periphery of the bottom of the fire extinguisher via a flange, and the other end bolted to the nozzle via a flange.

[0012] Optionally, the sensor assembly includes an infrared thermal imaging module and a camera, both fixed side-by-side to the sensor base, with a rubber waterproof gasket provided at the contact surface between the sensor base and the top shell.

[0013] Optionally, the transmission assembly includes a bevel gear set and a sprocket set, one of the bevel gear sets being coaxially connected to the motor output shaft, the other being coaxially connected to the rotating shaft, and the other end of the rotating shaft being coaxially connected to the sprocket set.

[0014] Optionally, the sprocket assembly includes a large sprocket and a small sprocket, with the small sprocket coaxially connected to the shaft and the large sprocket coaxially connected to the drive wheel.

[0015] Optionally, the track assembly is a track body composed of steel plate links, which is fitted between the drive wheel and the idler wheel, and connected to the side plate of the mounting frame by the idler wheel shaft through a bearing assembly.

[0016] Optionally, the storage box and the mounting bracket are connected by bolts, and an elastic sealing gasket is provided at the mating surface.

[0017] Optionally, the top shell and the mounting frame are connected by a support column and a tension bolt, with one end of the support column fixed to the inner wall of the top shell and the other end fixed to the upper part of the mounting frame.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] 1. Based on the tracked drive structure, the inspection vehicle can move freely in the complex terrain of the substation (narrow passages between equipment, lifting platforms, etc.), breaking through the limitation of fixed fire hydrant positions and realizing rapid arrival and precise fire extinguishing of any fire point;

[0020] 2. The top shell is equipped with dual-modal sensors, including infrared thermal imaging and visible light cameras, to monitor the fire situation around the clock and in all directions. Once an anomaly is detected, the vehicle can automatically stop and start the spraying device, significantly shortening the response time from "fire detection" to "fire extinguishing spraying".

[0021] 3. The fire extinguishing tank with a removable stirring device inside the storage box ensures that the extinguishing liquid is uniform and free of sediment after long-term storage; the bottom nozzle assembly and the top sensor are seamlessly linked to form an integrated process of "detection-braking-extinguishing", which greatly improves the efficiency of initial fire response.

[0022] 4. The detachable fire extinguishing tank, flange-connected nozzle, bolt-fixed storage tank and mounting bracket all use standardized and modular components, which facilitates quick replacement or on-site maintenance and reduces downtime for maintenance.

[0023] 5. The multi-stage transmission combination of motor-bevel gear-sprocket-track and worm gear reduction structure ensures that the vehicle can operate smoothly and reliably under different load and speed conditions, and will not become unstable due to complex electromagnetic environment or high voltage interference. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is a three-dimensional schematic diagram of an automatic fire extinguishing and inspection vehicle according to this application;

[0026] Figure 2 This is a perspective view of the track assembly in this application;

[0027] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the mounting bracket in this application;

[0028] Figure 4 This is a three-dimensional schematic diagram of the stirring device in this application;

[0029] Figure 5 This is a three-dimensional schematic diagram of the nozzle assembly in this application;

[0030] Figure 6 This is a three-dimensional schematic diagram of the sensor assembly in this application.

[0031] 1. Mounting frame; 2. Track assembly; 3. Top shell; 4. Sensor assembly; 41. Infrared thermal imaging module; 42. Camera; 5. Transmission assembly; 51. Bevel gear set; 52. Sprocket set; 521. Large sprocket; 522. Small sprocket; 6. Fire extinguishing canister; 7. Mixing device; 71. Drive shaft; 72. Mixing blades; 8. Reduction assembly; 81. Worm gear; 82. Worm; 9. Nozzle assembly; 91. Connecting pipe; 92. Nozzle; 10. Drive wheel; 11. Idler wheel; 12. Storage tank; 13. Motor; 14. Worm gear seat; 15. Flange; 16. Sensor base; 17. Rubber waterproof gasket; 18. Tension screw; 19. Support column; 20. Coupling; 21. Small pulley; 22. Large pulley. Detailed Implementation

[0032] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0034] like Figures 1 to 6 As shown, an automatic fire extinguishing and inspection vehicle includes a mounting frame 1, with track assemblies 2 symmetrically mounted on both sides of the mounting frame 1. A top shell 3 is fixedly mounted on the upper end of the mounting frame 1, and a sensor assembly 4 is movably connected to one side of the top shell 3. A storage box 12 is located in the center of the mounting frame 1, and a fire extinguishing tank 6 is detachably installed in the storage box 12. The top of the fire extinguishing tank 6 is connected to the storage box 12 through a tank cover. A stirring device 7 is installed inside the fire extinguishing tank 6, and the stirring device 7 is connected to a reduction assembly 8 inside the mounting frame 1 through a coupling 20. The bottom of the fire extinguishing tank 6 is connected to a nozzle assembly 9 through bolts. The nozzle assembly 9 passes through the top shell 3 and extends along the upper end of the top shell 3. The track assemblies 2 are wound around drive wheels 10 and idler wheels 11 on both sides of the mounting frame 1. The drive wheels 10 are connected to a motor 13 inside the mounting frame 1 through a transmission assembly 5.

[0035] When the inspection vehicle starts at the fire scene, the output shaft of the starter motor 13 rotates, driving the bevel gear set 51 and sprocket set 52 in sequence through the transmission assembly 5. This transmits power to the drive wheel 10 of the track assembly 2, causing the track assembly 2 to rotate around the drive wheel 10 and idler wheel 11, and the vehicle begins to move along the predetermined trajectory. Simultaneously, the fire extinguishing canister 6 inside the storage tank 12 is secured and sealed with a canister lid. Because the stirring device 7 is connected to the output shaft of the motor 13 through the large pulley 22 and the small pulley 21, the stirring device 7 inside the canister rotates continuously at a low speed under the drive of the reduction assembly 8, ensuring that the extinguishing liquid remains uniform. When stirring is no longer needed, the coupling 20 can be disconnected. During travel, if a fire source is encountered, the sensor assembly 4 detects the target and triggers the nozzle assembly 9, spraying the extinguishing agent towards the fire source.

[0036] In this embodiment, preferably, two brushless DC geared motors are selected as motor 13 and are symmetrically installed on both sides of the mounting bracket 1, respectively connected to the track assembly 2 via the transmission assembly 5. The brushless DC geared motor can maintain stable output in high and low temperature environments, meeting the requirements of scenarios with large indoor and outdoor temperature differences.

[0037] The brushless DC geared motor is fastened to the mounting bracket 1 via a foot bracket. A vibration damping pad is set between the foot bracket and the mounting bracket 1 to absorb the impact of the road surface. The output shaft of the brushless DC geared motor drives the track via the transmission component 5, and can also drive the mixing device 7 via the large pulley 22, the small pulley 21 and the coupling 20.

[0038] Furthermore, the reduction assembly 8 is composed of a pair of meshing worm gears 81 and worm 82. The worm 82 is connected to the output shaft of the motor 13 via a small pulley 21 fixed coaxially to it and a synchronous belt drive via a large pulley 22 fixed coaxially to the motor 13. The worm gears 81 are fixed on the worm gear 81 seat at the top of the mounting bracket 1.

[0039] Furthermore, the stirring device 7 includes a vertical drive shaft 71 passing through the center of the top of the fire extinguisher 6 and stirring blades 72 fixed on the outer periphery of the drive shaft 71. The top end of the drive shaft 71 is connected to the output shaft of the reduction assembly 8 through a coupling 20.

[0040] like Figure 3 as well as Figure 4 As shown, when the foam agent or extinguishing liquid in the fire extinguishing tank 6 needs to be activated for stirring, the output shaft of the motor 13 drives the worm gear 82 to rotate via the large pulley 22 and the small pulley 21, which in turn drives the worm wheel 81 to rotate. The worm wheel 81 drives the drive shaft 71 via the coupling 20, which in turn drives the stirring blade 72 to rotate at low speed and high torque. During the stirring process, the stirring blade 72 agitates inside the tank, preventing the foam agent from settling or stratifying, and ensuring uniform concentration during spraying. The reduction gear assembly 8 is connected to the mounting bracket 1 through multi-point fastening to ensure no loosening under high vibration conditions, and its self-locking characteristic prevents the output shaft from reversing after shutdown, maintaining the stirring blade 72 in its stationary position.

[0041] Furthermore, such as Figure 1 as well as Figure 5 As shown, the nozzle assembly 9 includes a connecting pipe 91 and a nozzle 92. One end of the connecting pipe 91 is bolted to the outer periphery of the bottom of the fire extinguishing tank 6 via a flange 15, and the other end is bolted to the nozzle 92 via a flange 15.

[0042] Furthermore, the sensor assembly 4 includes an infrared thermal imaging module 41 and a camera 42, which are fixed side by side to the sensor base 16. A rubber waterproof gasket 17 is provided at the contact surface between the sensor base 16 and the top shell 3.

[0043] like Figure 1 as well as Figure 6 As shown, the infrared thermal imaging module 41 and the camera 42 are fixed side by side on a stamped steel plate base. The entire assembly is fastened to the side wall of the top shell 3 by fasteners, and rubber waterproof gaskets 17 are provided at the contact points. During the robot's movement, the sensors continuously collect data, and the system filters out environmental interference (such as sunlight or steam heat sources), issuing warnings only for abnormal hot spots on the equipment surface.

[0044] Furthermore, the transmission assembly 5 includes a bevel gear set 51 and a sprocket set 52. One of the bevel gear sets 51 is coaxially connected to the output shaft of the motor 13, and the other is coaxially connected to the rotating shaft. The other end of the rotating shaft is coaxially connected to the sprocket set 52.

[0045] Furthermore, the sprocket assembly 52 includes a large sprocket 521 and a small sprocket 522. The small sprocket 522 is coaxially connected to the shaft, and the large sprocket 521 is coaxially connected to the drive wheel 10.

[0046] Furthermore, the track assembly 2 is a track body composed of steel plate links. The track body is sleeved between the drive wheel 10 and the idler wheel 11, and is connected to the side plate of the mounting frame 1 by the idler wheel 11 shaft through a bearing assembly.

[0047] like Figure 1 as well as Figure 2 As shown, in this embodiment, preferably, the drive wheel 10 is made of cast aluminum. The cast aluminum drive wheel 10 meshes with the track chain links, and the drive shaft 71 is supported on the side plate by rolling bearings. The rolling friction resistance is small, and the track assembly 2 crawls smoothly on the metal platform and concrete ground. The drive wheel 10 cooperates with the idler wheel 11 to ensure the tension of the track assembly 2 and remain stable when turning or crossing obstacles.

[0048] When movement is required, the output shaft of motor 13 connects to bevel gear set 51, driving bevel gear set 51 to rotate. Bevel gear set 51 is connected to small sprocket 522 on a staggered shaft. Small sprocket 522 meshes with large sprocket 521 via a chain. Large sprocket 521 is coaxially arranged with drive wheel 10, ultimately causing the left and right drive wheels 10 to rotate synchronously. Steel plate chain links are firmly engaged in the toothed grooves on the outer edge of drive wheel 10, forming a closed-loop track structure. The rotation of drive wheel 10 drives steel plate chain links to roll continuously along the ground or guide rail. At the same time, idler wheel 11 supported by side plate rolling bearings maintains track tension.

[0049] Furthermore, the storage box 12 is connected to the mounting bracket 1 by bolts, and an elastic sealing gasket is provided at the joint surface.

[0050] Furthermore, the top shell 3 and the mounting frame 1 are connected by a support column 19 and a tension screw 18. One end of the support column 19 is fixed to the inner wall of the top shell 3, and the other end is fixed to the upper part of the mounting frame 1.

[0051] Working principle:

[0052] Inside the UHV substation, the inspection vehicle is first activated by the dispatch system or a pre-programmed command, and automatically moves to perform inspections via a combination of motor 13, transmission assembly 5, drive wheel 10, and track assembly 2. During the inspection, sensor assembly 4 scans equipment temperature and image information in real time, and uses algorithms to eliminate environmental interference sources and accurately locate abnormal hotspots. Once a fire is confirmed, when stirring is required, the stirring device 7 is connected to the worm gear 81 via coupling 20. Driven by motor 13, the foam agent is stirred and mixed, and the nozzle assembly 9 ensures leak-free spraying through a sealing connection device. Subsequently, the nozzle assembly 9 sprays foam directionally towards the target fire source to achieve rapid initial fire suppression. After spraying is completed, the system resumes inspections or returns to the resupply point to replenish the fire extinguishing tank 6, continuously ensuring the fire safety of the substation.

[0053] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0054] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0055] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. An automatic fire extinguishing and inspection vehicle, comprising a mounting frame (1), characterized in that: The mounting frame (1) is symmetrically equipped with track assemblies (2) on both sides. The top shell (3) is fixedly installed on the upper end of the mounting frame (1). A sensor assembly (4) is movably connected to one side of the top shell (3). A storage box (12) is set in the center of the mounting frame (1). A fire extinguishing canister (6) is detachably installed in the storage box (12). The top of the fire extinguishing canister (6) is connected to the storage box (12) through a canister cover. A stirring device (7) is set in the fire extinguishing canister (6). The stirring device (7) is connected to the deceleration assembly (8) in the mounting frame (1) through a coupling (20). The bottom of the fire extinguishing canister (6) is connected to the nozzle assembly (9) through bolts. The nozzle assembly (9) passes through the top shell (3) and extends along the upper end of the top shell (3). The track assembly (2) is wound around the drive wheel (10) and idler wheel (11) on both sides of the mounting frame (1). The drive wheel (10) is connected to the motor (13) in the mounting frame (1) through a transmission assembly (5).

2. The automatic fire-fighting and inspection vehicle according to claim 1, characterized in that: The stirring device (7) includes a vertical drive shaft (71) passing through the center of the top of the fire extinguisher (6) and stirring blades (72) fixed on the outer periphery of the drive shaft (71). The top end of the drive shaft (71) is connected to the output shaft of the reduction assembly (8) through a coupling (20).

3. The automatic fire-fighting and inspection vehicle according to claim 1, characterized in that: The speed reduction assembly (8) consists of a transmission component consisting of a pair of meshing worm gears (81) and worm (82). The worm (82) is connected to the output shaft of the motor (13) via a synchronous belt drive through a small pulley (21) that is coaxially fixed to it and a large pulley (22) that is coaxially fixed to the motor (13). The worm gears (81) are fixed on the worm gear seat (14) at the top of the mounting bracket (1).

4. The automatic fire-fighting and inspection vehicle according to claim 1, characterized in that: The nozzle assembly (9) includes a connecting pipe (91) and a nozzle (92). One end of the connecting pipe (91) is bolted to the outer periphery of the bottom of the fire extinguisher (6) via a flange (15), and the other end is bolted to the nozzle (92) via a flange (15).

5. The automatic fire extinguishing and inspection vehicle according to claim 1, characterized in that: The sensor assembly (4) includes an infrared thermal imaging module (41) and a camera (42), which are fixed side by side to the sensor base (16). A rubber waterproof gasket (17) is provided at the contact surface between the sensor base (16) and the top shell (3).

6. The automatic fire-fighting and inspection vehicle according to claim 1, characterized in that: The transmission assembly (5) includes a bevel gear set (51) and a sprocket set (52). One of the bevel gear sets (51) is coaxially connected to the output shaft of the motor (13), and the other is coaxially connected to the rotating shaft. The other end of the rotating shaft is coaxially connected to the sprocket set (52).

7. The automatic fire-fighting patrol vehicle according to claim 6, characterized in that: The sprocket assembly (52) includes a large sprocket (521) and a small sprocket (522). The small sprocket (522) is coaxially connected to the shaft, and the large sprocket (521) is coaxially connected to the drive wheel (10).

8. The automatic fire-fighting and inspection vehicle according to claim 1, characterized in that: The track assembly (2) is a track body composed of steel plate links. The track body is sleeved between the drive wheel (10) and the idler wheel (11), and is connected to the side plate of the mounting frame (1) by the idler wheel (11) shaft through a bearing assembly.

9. The automatic fire extinguishing and inspection vehicle according to claim 1, characterized in that: The storage box (12) and the mounting frame (1) are connected by bolts, and an elastic sealing gasket is provided at the joint surface.

10. The automatic fire-fighting and inspection vehicle according to claim 1, characterized in that: The top shell (3) and the mounting frame (1) are connected by a support column (19) and a tension screw (18). One end of the support column (19) is fixed to the inner wall of the top shell (3), and the other end is fixed to the upper part of the mounting frame (1).

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