An unmanned aerial vehicle delivery pod for fire extinguishing

Abstract

The application discloses an unmanned aerial vehicle (UAV) dropping pod for fire extinguishing, and belongs to the technical field of fire extinguishing equipment, which comprises, from top to bottom, a fire plate, a lifting rope, a balance plate and a lifting bucket, wherein the fire plate is fixedly connected to the bottom of the body of the UAV, the top end of the lifting rope is detachably connected to the fire plate through a first anti-winding lock assembly, the bottom end of the lifting rope is fixedly connected to the top surface of the balance plate, the lifting bucket comprises a bucket body, a lifting belt is fixedly connected to the outer wall of the bucket body, the lifting ring at the top end of the lifting belt is connected to the balance plate through a second anti-winding lock assembly, a flexible water outlet pipe is fixedly connected to the bottom surface of the bucket body, a hanging belt is fixedly connected to the end of the flexible water outlet pipe, and the hanging ring at the end of the hanging belt is detachably connected to the bottom surface of the balance plate through a release assembly. The UAV dropping pod for fire extinguishing adopts the above structure, can effectively avoid water leakage during the journey to the fire point, and can avoid the situation that the UAV is forced to stay after the lifting belt or the lifting rope is wound around trees.

Description

Technical Field

[0001] This invention belongs to the field of fire extinguishing equipment technology, and in particular relates to a drone delivery pod for fire extinguishing. Background Technology

[0002] my country has vast forests and grasslands, making fire prevention a very serious challenge. With the implementation of projects such as natural forest protection, reforestation, and afforestation, the planting density of young and middle-aged forests is high. Once a fire breaks out, due to the high mountains, dense forests, sparse population, steep cliffs, complex terrain, inconvenient transportation, and the distance between the fire site and roads, firefighters often find it difficult to reach the scene immediately. If the fire is not extinguished promptly in its early stages, it will spread, resulting in a large fire area, long fire lines, numerous fire points, and intense fire intensity, making it difficult to extinguish in a short period, and traditional firefighting methods are also ineffective.

[0003] To overcome the aforementioned terrain difficulties and achieve flexible and timely fire rescue, drones have become an important tool for firefighting. Current technology involves attaching a delivery pod to a drone. A fire truck fills the pod with extinguishing liquid, which is then lifted by the drone to the fire site. A wireless control device then drops the extinguishing liquid from the pod, enabling rapid fire suppression in a short time.

[0004] Chinese patent application CN205145452U discloses a fire bucket, including a suspension belt, a connecting block, and a water bucket; one end of the suspension belt is connected to the connecting block, and the other end is used to connect to an aircraft; the connecting block is connected to the water bucket through several slings; the lower end of the water bucket is provided with a drain outlet, which is made of a waterproof membrane and has a drawstring on it; the connecting block is provided with a control device, which includes a steel wire rope, one end of which is connected to the drawstring. The control device can tighten or loosen the drawstring through the steel wire rope to close or open the drain outlet.

[0005] While the aforementioned fire bucket can work in conjunction with drones to overcome terrain limitations for fire rescue, it still has the following problems in use: 1. The method of opening and closing the water outlet by tightening or loosening the sling through a steel cable is unreliable. If the sling is not fully tightened, leading to leakage, it will affect the timeliness of fire extinguishing at the fire site. 2. When the sling gets tangled with the ropes of tree branches at a high place, both the drone and the fire bucket will be stuck at the tangled position, increasing the workload of other drones in firefighting.

[0006] To solve the above problems, a new type of drone delivery pod is needed. Summary of the Invention

[0007] The purpose of this invention is to provide a drone delivery pod for firefighting, which effectively avoids water leakage during the journey to the fire site and prevents the drone from being forced to stay in place after the sling or rope gets tangled with trees.

[0008] To achieve the above objectives, the present invention provides a drone-launched pod for firefighting, comprising a fire-fighting plate, a suspension rope, a balancing plate, and a bucket arranged sequentially from top to bottom. The fire-fighting plate is fixedly connected to the bottom of the drone's body. The top end of the suspension rope is detachably connected to the fire-fighting plate via a first anti-tangle locking assembly, and the bottom end of the suspension rope is fixedly connected to the top surface of the balancing plate. The bucket includes a bucket body, on which evenly distributed slings are fixedly connected. The sling loops at the top of the slings are detachably connected to the bottom surface of the balancing plate via a second anti-tangle locking assembly. A flexible water outlet pipe is fixedly connected to the bottom surface of the bucket body, and a hanging strap is fixedly connected to the end of the flexible water outlet pipe. The hanging loop at the end of the hanging strap is detachably connected to the bottom surface of the balancing plate via a discharge assembly. The first anti-tangle locking assembly, the second anti-tangle locking assembly, and the discharge assembly are all communicatively connected to a controller.

[0009] Preferably, the first anti-tangle lock assembly includes a first support block, a mounting base, a hanger, and a first telescopic power device. The first support block and the mounting base are both fixedly connected to the bottom surface of the fire protection plate. The hanger is suspended between the first support block and the mounting base. The top of the hanger has a first clearance hole, and the bottom of the hanger has a lifting hole for fixed connection with the suspension rope. The first telescopic power device is fixedly connected to the mounting base. The mounting base has a second clearance hole opposite to the telescopic rod on the first telescopic power device. The telescopic rod on the first telescopic power device passes through the second clearance hole and the first clearance hole in sequence and is inserted into the slot on the first support block. The first telescopic power device is communicatively connected to the controller.

[0010] Preferably, the second anti-tangle lock assembly includes a T-slot, a slider, a first spring, a limiting groove, a sealing block, an electromagnet, a second spring, and a magnetic metal block. The T-slot is formed on the bottom surface of the balance plate, and one end of the T-slot is connected to the side wall of the balance plate. The slider is slidably connected in the T-slot, and the bottom surface of the slider is fixedly connected to the lifting ring. A groove is formed on the top surface of the slider. The first spring is parallel to the length direction of the T-slot, one end of the first spring abuts against the slider, and the other end of the first spring is fixedly connected to the groove wall of the T-slot away from the groove opening. The positioning groove is formed on the top surface of the balance plate and communicates with the T-shaped groove. The sealing block seals the top of the limiting groove and is detachably connected to the balance plate. The electromagnet and the second spring are both located in the limiting groove, and the top ends of the electromagnet and the second spring are fixedly connected to the bottom surface of the sealing block. The bottom end of the second spring is fixedly connected to the magnetic metal block. When the electromagnet is energized, the magnetic metal block is completely located in the limiting groove. When the electromagnet is de-energized, the top of the magnetic metal block is located in the limiting groove and the bottom is located in the groove. The electromagnet is communicatively connected to the controller.

[0011] Preferably, the venting assembly includes a housing fixedly connected to the bottom surface of the balance plate, a venting groove is provided on one side of the bottom surface of the housing, a venting rod is horizontally arranged in the venting groove, a hanging ring is suspended on the venting rod, and one end of the venting rod is connected to a second telescopic power device located inside the housing.

[0012] Preferably, the side wall of the discharge groove away from the second telescopic power device is provided with a plug-in groove corresponding to the discharge rod.

[0013] Preferably, the hanging ring is connected to a winding assembly, which includes a winding rod located within the venting groove and parallel to the venting rod above it. Neither end of the winding rod contacts the venting groove. A winding rope is wound around the winding rod, and the end of the winding rope is fixedly connected to the hanging ring. A transmission groove is formed on one end face of the winding rod, and a clutch rod is movably connected within the transmission groove. The clutch rod includes a thinner diameter section and a thicker diameter section coaxially arranged. An air bladder is provided on the outer wall of the thinner diameter section, and the air bladder is connected to an inflation / deflation assembly. The thicker diameter section is slidably connected to the transmission groove. The end of the thicker diameter section away from the thinner diameter section penetrates the groove wall of the venting groove and is connected to a drive assembly located within the housing. The drive assembly is used to drive the clutch rod to rotate and extend / retract.

[0014] Preferably, the inflation / deflation assembly includes an air pump, the air pipe on the air pump is connected to the center hole on the clutch lever through a rotary sealing joint, the center hole is connected to the air bag through an air passage opened on the clutch lever, and the air pump, the air pipe and the rotary sealing joint are evenly located in the housing.

[0015] Preferably, the drive assembly includes a driven wheel, a driving wheel, a motor, a movable ring, and a third telescopic power device. The driven wheel is fixedly connected to the coarse-diameter section, and the driven wheel is meshed with the driving wheel. The driving wheel is coaxially fixedly connected to the output shaft of the motor. The movable ring is rotatably connected in a positioning groove on the coarse-diameter section. The positioning groove and the coaxial section are arranged coaxially. One end of the movable ring is fixedly connected to a telescopic rod on the third telescopic power device.

[0016] Preferably, there are four suspension ropes and four suspension straps. The bottom ends of the four suspension ropes are arranged in a rectangular pattern at the four corners of the top surface of the balance board, and the top ends of the four suspension straps are arranged in a rectangular pattern at the four corners of the bottom surface of the balance board.

[0017] Therefore, the UAV delivery pod for firefighting using the above-described structure of the present invention has the following beneficial effects: The flexible water outlet pipe and the balance plate are detachably connected by a venting component. After the flexible water outlet pipe is connected to the balance plate, the top outlet of the flexible water outlet pipe is higher than the tank body, which prevents the fire extinguishing liquid in the tank from leaking during transportation. After the flexible water outlet pipe is separated from the balance plate, the flexible water outlet pipe falls under the action of gravity and the liquid pressure in the tank, so that the fire extinguishing liquid flows out through the flexible water outlet pipe to extinguish the fire. The first anti-tangling lock assembly allows the sling, balance plate, and bucket to detach from the drone simultaneously, while the second anti-tangling lock assembly and the release assembly allow the bucket to detach from the drone, thus preventing the drone from being forced to remain in the situation where the sling or rope gets tangled with trees.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of a drone delivery pod for firefighting according to the present invention; Figure 2 This is a schematic diagram of an embodiment of the present invention, which describes a drone-borne bucket for firefighting. Figure 3 This is a schematic diagram of an embodiment of the first anti-entanglement lock assembly in a drone delivery pod for firefighting according to the present invention; Figure 4This is a schematic diagram of the structure of a balance plate in a drone delivery pod for firefighting according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a sealing block in a drone delivery pod for firefighting according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a container in an embodiment of a drone delivery pod for firefighting according to the present invention; Figure 7 This is a schematic diagram of the structure of a drive assembly in a drone delivery pod for firefighting according to an embodiment of the present invention.

[0020] In the diagram: 1. Fire-fighting board; 2. Lifting rope; 3. Balance board; 4. Bucket; 401. Bucket body; 402. Lifting strap; 403. Lifting ring; 404. Flexible outlet pipe; 405. Hanging strap; 406. Hanging ring; 5. First anti-tangle lock assembly; 51. First support block; 52. Mounting base; 53. Hanger; 54. First telescopic power device; 55. Lifting hole; 61. T-slot; 62. Sliding block; 63. First spring; 64. Sealing block; 65. Electromagnet; 66. Second spring; 67. Magnetic metal block; 7. Discharge assembly; 71. Housing; 72. Discharge trough; 73. Discharge rod; 74. Second telescopic power device; 8. Connecting ring; 91. Retracting rod; 92. Retracting rope; 93. Transmission groove; 94. Clutch rod; 941. Narrow diameter section; 942. Large diameter section; 95. Airbag; 96. Inflation / depression assembly; 961. Air pump; 962. Rotary sealing joint; 963. Air pipe; 97. Drive assembly; 971. Driven wheel; 972. Drive wheel; 973. Motor; 974. Moving ring; 975. Third telescopic power device; 10. Sealing door. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example Reference Figures 1-7As shown, this embodiment provides a drone-launched pod for firefighting, comprising a fire-fighting plate 1, a suspension rope 2, a balancing plate 3, and a bucket 4 arranged sequentially from top to bottom. The fire-fighting plate 1 is fixedly connected to the bottom of the drone's body. The top end of the suspension rope 2 is detachably connected to the fire-fighting plate 1 via a first anti-tangle locking assembly 5, and the bottom end of the suspension rope 2 is fixedly connected to the top surface of the balancing plate 3. The bucket 4 includes a bucket body 401, with evenly distributed suspension straps 402 fixedly connected to the outer wall of the bucket body 401. The lifting ring 403 at the top of the suspension straps 402 is detachably connected to the bottom surface of the balancing plate 3 via a second anti-tangle locking assembly. A flexible water outlet pipe 404 is fixedly connected to the bottom surface of the bucket body 401, and a hanging strap 405 is fixedly connected to the end of the flexible water outlet pipe 404. The hanging ring 406 at the end of the hanging strap 405 is detachably connected to the bottom surface of the balancing plate 3 via a discharge assembly 7. The first anti-tangle locking assembly 5, the second anti-tangle locking assembly, and the discharge assembly 7 are all communicatively connected to a controller.

[0024] In use, the hanging ring 406 at the end of the strap 405 is hung on the discharge assembly 7 to connect the flexible water outlet pipe 404 to the balance plate 3, so that the opening of the flexible water outlet pipe 404 is higher than the opening on the top surface of the tank 401. Then, fire extinguishing liquid is injected into the tank 401. At this time, since the liquid level of the fire extinguishing liquid is lower than the height of the outlet of the flexible water outlet pipe 404, leakage of the fire extinguishing liquid can be avoided. Then, the drone carries the fire extinguishing liquid in the tank 401 to the fire point. At this time, the controller controls the discharge assembly 7 to start, so that the flexible water outlet pipe 404 separates from the balance plate 3. At this time, the flexible water outlet pipe 404 falls under the action of gravity and the liquid pressure in the tank, so that the fire extinguishing liquid flows out through the flexible water outlet pipe 404 to extinguish the fire. After ground crew visually confirms or observes via the drone's downward-facing FPV camera that the sling 402 or rope 2 is entangled with a tree, the ground crew or the FPV camera transmits a signal to the controller. When rope 2 becomes entangled, the controller activates the first anti-entanglement lock assembly 5, allowing rope 2, balance plate 3, and bucket 4 to simultaneously detach from the drone, thus freeing the drone from its predicament. At this point, the drone can continue firefighting operations using the spare rope 2, balance plate 3, and bucket 4. When sling 402 becomes entangled, the controller activates the second anti-entanglement lock assembly and the release assembly 7. Opening the bucket 4 allows it to detach from the drone, enabling the drone to escape its predicament. At this point, the drone can continue firefighting operations using the spare bucket 4. If it is impossible to determine whether the sling 402 or the rope 2 is entangled, the controller can first open the second anti-entanglement lock assembly and the release assembly 7 to detach the bucket 4 from the drone. If the drone still cannot escape its predicament, the controller can then open the first anti-entanglement lock assembly 5 to detach the rope 2 and the balance plate 3 from the drone. This sequential detachment method can reduce the frequency of replacing the rope 2, the balance plate 3, and the bucket 4, and reduce the pressure on the reserve of spare parts.

[0025] In a further optimized design, the first anti-tangle lock assembly 5 includes a first support block 51, a mounting base 52, a hanger 53, and a first telescopic power device 54. Both the first support block 51 and the mounting base 52 are fixedly connected to the bottom surface of the fire-fighting panel 1. The hanger 53 is suspended between the first support block 51 and the mounting base 52. The top of the hanger 53 has a first clearance hole, and the bottom of the hanger 53 has a lifting hole 55 for fixed connection with the lifting rope 2. The first telescopic power device 54 is fixedly connected to the mounting base 52, which has a second clearance hole opposite to the telescopic rod on the first telescopic power device 54. The telescopic rod on the first telescopic power device 54 passes sequentially through the second clearance hole and the first clearance hole and is inserted into a slot on the first support block 51. The first telescopic power device 54 is communicatively connected to the controller.

[0026] In use, the first telescopic power device 54 can be a cylinder. When the telescopic rod on the first telescopic power device 54 is inserted into the slot, the telescopic rod can provide support for the hanging part 53. The hanging hole 55 on the hanging part 53 can provide support for the hanging rope 2, thereby realizing the connection between the hanging rope 2 and the fire board 1. After the telescopic rod on the first telescopic power device 54 retracts into the second clearance hole, the hanging part 53 loses support and falls with the hanging rope 2. At this time, the hanging rope 2, the balance board 3 and the bucket 4 are separated from the drone.

[0027] A further optimized solution includes a second anti-tangle lock assembly comprising a T-slot 61, a slider 62, a first spring 63, a limiting groove, a sealing block 64, an electromagnet 65, a second spring 66, and a magnetic metal block 67. The T-slot 61 is formed on the bottom surface of the balance plate 3, and one end of the T-slot 61 is connected to the side wall of the balance plate 3. The slider 62 is slidably connected within the T-slot 61. A groove is formed on the top surface of the slider 62, and the bottom surface of the slider 62 is fixedly connected to the lifting ring 403, thereby achieving a fixed connection between the slider 62 and the lifting strap 402. The first spring 63 is parallel to the length direction of the T-slot 61. One end of the first spring 63 abuts against the slider 62, and the other end of the first spring 63 is fixedly connected to the groove wall of the T-slot 61 away from the groove opening. A limiting groove is formed on the top surface of the balance plate 3 and communicates with the T-shaped groove 61. A sealing block 64 seals the top of the limiting groove and is detachably connected to the balance plate 3. The sealing block 64 can be detachably connected to the balance plate 3 by bolts. The detachable connection between the sealing block 64 and the balance plate 3 facilitates the inspection and replacement of the electromagnet 65, the second spring 66, and the magnetic metal block 67. A connecting ring 8 for fixing the suspension rope 2 can be fixedly connected to the top surface of the sealing block 64. The connecting ring 8 and the sealing block 64 are used to fix the bottom end of the suspension rope 2 to the balance plate 3. The electromagnet 65 and the second spring 66 are both located in the limiting groove, and the top ends of the electromagnet 65 and the second spring 66 are fixedly connected to the bottom surface of the sealing block 64. The bottom end of the second spring 66 is fixedly connected to the magnetic metal block 67. In this embodiment, the electromagnet 65 and the second spring 66 are coaxially arranged. When the electromagnet 65 is energized, the top of the magnetic metal block 67 is located in the limiting groove and the bottom is located in the recess, thus locking the slider 62. When the electromagnet 65 is de-energized, the magnetic metal block 67 is completely located in the limiting groove, thus unlocking the slider 62. The electromagnet 65 is connected to the controller.

[0028] In use, the controller energizes the electromagnet 65 to generate magnetism, attracting the magnetic metal block 67 to completely retract into the limiting groove, overcoming the elastic force of the second spring 66. At this time, the first spring 63 pushes the slider 62 out of the T-shaped groove 61, thus separating the slider 62 and the sling 402 from the balance plate 3. When the slider 62 and the sling 402 do not need to be separated from the balance plate 3, the electromagnet 65 is de-energized. In this case, the top of the magnetic metal block 67 is located in the limiting groove, the bottom is located in the recess, and the first spring 63 is in a compressed state.

[0029] In a further optimized design, the venting assembly 7 includes a housing 71 fixedly connected to the bottom surface of the balance plate 3. A venting groove 72 is provided on one side of the bottom surface of the housing 71. A venting rod 73 is horizontally arranged in the venting groove 72. A hanging ring 406 is suspended on the venting rod 73. One end of the venting rod 73 is connected to a second telescopic power device 74 located inside the housing 71.

[0030] In use, a sealing door 10 is provided on the housing 71 to allow access to the second telescopic power device 74 for maintenance. The second telescopic power device 74 can be a cylinder. After the second telescopic power device 74 drives the release rod 73 to retract, the hanging ring 406 loses its support and falls with the hanging strap 405 under the action of gravity, thus lowering the flexible water outlet pipe 404 and releasing the extinguishing liquid. After firefighters manually pull the hanging ring 406 to raise the flexible water outlet pipe 404, the second telescopic power device 74 drives the release rod 73 to reset and pass through the hanging ring 406, thus supporting and fixing the hanging ring 406. At this time, it can be ensured that the flexible water outlet pipe 404 is higher than the level of the extinguishing liquid in the tank 401, thereby preventing the extinguishing liquid from leaking.

[0031] Furthermore, a plug groove corresponding to the discharge rod 73 is provided on the side wall of the discharge trough 72 away from the second telescopic power device 74.

[0032] When in use, the insertion slot can improve the stability of the relief rod 73 when supporting the hanging ring 406.

[0033] Furthermore, the hanging ring 406 is connected to the winding assembly, which includes a winding rod 91 located within the venting groove 72 and parallel to the venting rod 73. Neither end of the winding rod 91 contacts the venting groove 72, and a winding rope 92 is wound around the winding rod 91, with the end of the winding rope 92 fixedly connected to the hanging ring 406. A transmission groove 93 is formed on one end face of the winding rod 91, and a clutch rod 94 is movably connected within the transmission groove 93. The clutch rod 94 includes a narrow diameter section 941 and a wide diameter section 942 arranged coaxially. An air bladder 95 is provided on the outer wall of the narrow diameter section 941, and the air bladder 95 is connected to the inflation / deflation assembly 96. The wide diameter section 942 is slidably connected to the transmission groove 93, and the end of the wide diameter section 942 away from the narrow diameter section 941 penetrates the groove wall of the venting groove 72 and is connected to a drive assembly 97 located within the housing 71. The drive assembly 97 is used to drive the clutch rod 94 to rotate and extend.

[0034] In use, both the inflation / deflation assembly 96 and the drive assembly 97 are connected to the controller. The controller controls the inflation / deflation assembly 96 to switch between the expansion and contraction states of the airbag 95. When the airbag 95 is inflated, it can fit tightly against the inner wall of the transmission groove 93, realizing the transmission connection between the clutch rod 94 and the winding rod 91. At this time, when the drive assembly 97 drives the clutch rod 94 to rotate, it can drive the winding rod 91 to rotate, thereby realizing the automatic winding of the winding rope 92. This replaces the firefighter's manual lifting ring 406 to lift and reset the ring 406 and the flexible water outlet pipe 404 (if the position of the ring after reset cannot allow the release rod 73 to pass through, the position of the ring can be manually adjusted to allow the release rod 73 to pass through). When the airbag 95 is contracted, it can separate from the transmission groove 93, realizing the transmission disconnect between the clutch rod 94 and the winding rod 91. At this time, when the winding rod 91 rotates under the pull of the winding rope 92, the clutch rod 94 will not rotate, and will not cause contact or wear to the airbag 95. The controller controls the start of the drive assembly 97, which enables the change of the horizontal position of the clutch lever 94 and the start and stop of the rotational motion.

[0035] Specifically, the inflation / deflation assembly 96 includes an air pump 961 that is communicatively connected to the controller. An air pipe 963 on the air pump 961 is connected to a central hole on the clutch lever 94 via a rotary sealing joint 962. The central hole is connected to the airbag 95 via an air passage on the clutch lever 94. The air pump 961, air pipe 963, and rotary sealing joint 962 are evenly located inside the housing 71. The air pump 961, air pipe 963, and rotary sealing joint 962 can be inspected and maintained by opening the sealing door 10.

[0036] In use, the controller connects to the air pump 961 and controls the air pump 961 to perform inflation and deflation functions. The controller controls the air pump 961 to start and deliver gas into the airbag 95 through the air pipe 963 and air passage, causing the airbag 95 to inflate and press against the transmission groove 93. At this time, the transmission connection between the clutch rod 94 and the winding rod 91 is realized. When the drive assembly 97 drives the clutch rod 94 to rotate, it can drive the winding rod 91 to rotate. The controller controls the air pump 961 to start and release gas from the airbag 95 through the air passage and air pipe 963, causing the airbag 95 to retract and separate from the transmission groove 93. At this time, the transmission between the clutch rod 94 and the winding rod 91 is disconnected. When the winding rod 91 rotates under the pull of the winding rope 92, the clutch rod 94 will not rotate and will not cause contact or wear to the airbag 95.

[0037] Specifically, the drive assembly 97 includes a driven wheel 971, a driving wheel 972, a motor 973, a movable ring 974, and a third telescopic power device 975. The driven wheel 971 is fixedly connected to the coarse-diameter section 942 and meshes with the driving wheel 972. The driving wheel 972 is coaxially fixedly connected to the output shaft of the motor 973. The movable ring 974 is rotatably connected to a positioning groove on the coarse-diameter section 942, and the positioning groove and the coarse-diameter section 942 are coaxially arranged. One end of the movable ring 974 is fixedly connected to the telescopic rod on the third telescopic power device 975. Both the motor 973 and the third telescopic power device 975 are signal-connected to the controller.

[0038] In use, the drive assembly 97 can be inspected by opening the sealing door 10. The third telescopic power device 975 can be a hydraulic cylinder, which is connected to the oil tank via an oil pump. The controller controls the extension and retraction stroke of the telescopic rod on the third telescopic power device 975 by controlling the amount of oil pumped by the oil pump, thereby controlling the horizontal displacement of the clutch rod 94 to adjust its horizontal position. When it is necessary to release the extinguishing liquid in the tank 401 normally, the controller controls the third telescopic power device 975 to start, causing the clutch rod 94 to move a certain distance in the transmission groove 93, so that the driving wheel 972 and the driven wheel 971 are misaligned, while keeping the airbag 95 in the retracted state (i.e., the transmission between the clutch rod 94 and the winding rod 91 is disconnected). At this time, after the release assembly 7 releases the support of the hanging ring 406, the winding rod 91 rotates on the clutch rod 94 under the pull of the winding rope 92, so that the end of the winding rope 92 descends synchronously with the hanging ring 406. When the winding rope 92 needs to be wound up to lift and reset the flexible water outlet pipe 404, the controller controls the third telescopic power device 975 to drive the clutch lever 94 to move a certain distance within the transmission groove 93, causing the driving wheel 972 and driven wheel 971 to re-engage. Simultaneously, the inflation / deflation assembly 96 inflates the airbag 95 (i.e., establishing a transmission connection between the clutch lever 94 and the winding lever 91). At this time, the motor 973 drives the driving wheel 972, driven wheel 971, clutch lever 94, and winding lever 91 to rotate, thus winding up the winding rope 92. When it is necessary to release the winding drum to detach it from the drone along with the bucket 4, the controller controls the third telescopic power device 975 to activate, causing the clutch lever 94 to completely move out of the transmission groove 93. At this time, the release assembly 7 releases the support for the hanging ring 406, and the second anti-entanglement lock assembly releases the lock on the slider 62, thus detaching the winding drum and bucket 4 from the drone.

[0039] In a further optimized design, four suspension ropes 2 and four slings 402 are provided. The bottom ends of the four suspension ropes 2 are arranged in a rectangular pattern at the four corners of the top surface of the balance plate 3, and the top ends of the four slings 402 are arranged in a rectangular pattern at the four corners of the bottom surface of the balance plate 3.

[0040] In use, four suspension ropes 2 are provided to effectively improve the stability of the balance plate 3, and four slings 402 are provided to effectively improve the stability of the barrel 401.

[0041] Therefore, the present invention provides a drone delivery pod for firefighting with the above-described structure, which effectively avoids water leakage on the way to the fire site and prevents the drone from being forced to stay in place after the sling 402 or rope 2 gets tangled with trees.

[0042] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0043] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A drone delivery pod for firefighting, characterized in that: The system includes a fire-fighting plate (1), a hoisting rope (2), a balance plate (3), and a bucket (4) arranged sequentially from top to bottom. The fire-fighting plate (1) is fixedly connected to the bottom of the drone's body. The top end of the hoisting rope (2) is detachably connected to the fire-fighting plate (1) via a first anti-tangle lock assembly (5). The bottom end of the hoisting rope (2) is fixedly connected to the top surface of the balance plate (3). The bucket (4) includes a bucket body (401). Evenly distributed slings (402) are fixedly connected to the outer wall of the bucket body (401). The top of the slings (402) The end ring (403) is detachably connected to the bottom surface of the balance plate (3) through the second anti-tangle lock assembly. The bottom surface of the barrel (401) is fixedly connected to a flexible water outlet pipe (404). The end of the flexible water outlet pipe (404) is fixedly connected to a hanging strap (405). The hanging ring (406) at the end of the hanging strap (405) is detachably connected to the bottom surface of the balance plate (3) through a discharge assembly (7). The first anti-tangle lock assembly (5), the second anti-tangle lock assembly and the discharge assembly (7) are all connected to the controller.

2. The drone delivery pod for firefighting according to claim 1, characterized in that: The first anti-tangle lock assembly (5) includes a first support block (51), a mounting base (52), a hanger (53), and a first telescopic power device (54). The first support block (51) and the mounting base (52) are both fixedly connected to the bottom surface of the fire protection plate (1). The hanger (53) is suspended between the first support block (51) and the mounting base (52). The top of the hanger (53) is provided with a first clearance hole, and the bottom of the hanger (53) is provided with a lifting hole (55) for fixed connection with the lifting rope (2). The first telescopic power device (54) is fixedly connected to the mounting base (52). The mounting base (52) is provided with a second clearance hole that is opposite to the telescopic rod on the first telescopic power device (54). The telescopic rod on the first telescopic power device (54) passes through the second clearance hole and the first clearance hole in sequence and is inserted into the slot on the first support block (51). The first telescopic power device (54) is communicatively connected to the controller.

3. The drone delivery pod for firefighting according to claim 1, characterized in that: The second anti-tangle lock assembly includes a T-slot (61), a slider (62), a first spring (63), a limiting groove, a sealing block (64), an electromagnet (65), a second spring (66), and a magnetic metal block (67). The T-slot (61) is formed on the bottom surface of the balance plate (3), and one end of the T-slot (61) is connected to the side wall of the balance plate (3). The slider (62) is slidably connected in the T-slot (61), and the bottom surface of the slider (62) is fixedly connected to the lifting ring (403). A groove is formed on the top surface of the slider (62). The first spring (63) is parallel to the length direction of the T-slot (61). One end of the first spring (63) abuts against the slider (62), and the other end of the first spring (63) is fixedly connected to the T-slot (61) away from the slider (62). On the groove wall of the slot, the limiting groove is opened on the top surface of the balance plate (3) and connected to the T-shaped groove (61). The sealing block (64) seals the top of the limiting groove and is detachably connected to the balance plate (3). The electromagnet (65) and the second spring (66) are both located in the limiting groove, and the top of the electromagnet (65) and the second spring (66) are fixedly connected to the bottom surface of the sealing block (64). The bottom end of the second spring (66) is fixedly connected to the magnetic metal block (67). When the electromagnet (65) is energized, the magnetic metal block (67) is completely located in the limiting groove. After the electromagnet (65) is de-energized, the top of the magnetic metal block (67) is located in the limiting groove and the bottom is located in the groove. The electromagnet (65) is connected to the controller.

4. The drone delivery pod for firefighting according to claim 1, characterized in that: The venting assembly (7) includes a box (71) fixedly connected to the bottom surface of the balance plate (3). A venting groove (72) is provided on one side of the bottom surface of the box (71). A venting rod (73) is horizontally arranged in the venting groove (72). The hanging ring (406) is suspended on the venting rod (73). One end of the venting rod (73) is connected to a second telescopic power device (74) located in the box (71).

5. The drone delivery pod for firefighting according to claim 4, characterized in that: The discharge groove (72) has a plug groove on the side wall away from the second telescopic power device (74) that corresponds to the discharge rod (73).

6. The drone delivery pod for firefighting according to claim 4, characterized in that: The hanging ring (406) is connected to the winding assembly, which includes a winding rod (91) located inside the discharge groove (72) and parallel to the discharge rod (73). Neither end of the winding rod (91) contacts the discharge groove (72). A winding rope (92) is wound around the winding rod (91), and the end of the winding rope (92) is fixedly connected to the hanging ring (406). A transmission groove (93) is provided on one end face of the winding rod (91), and a clutch rod (94) is movably connected within the transmission groove (93). (94) includes a narrow diameter section (941) and a wide diameter section (942) arranged coaxially. An air bladder (95) is provided on the outer wall of the narrow diameter section (941). The air bladder (95) is connected to the inflation / deflation assembly (96). The wide diameter section (942) is slidably connected to the transmission groove (93). One end of the wide diameter section (942) away from the narrow diameter section (941) passes through the groove wall of the venting groove (72) and is connected to the drive assembly (97) located in the housing (71). The drive assembly (97) is used to drive the clutch rod (94) to rotate and extend.

7. The drone delivery pod for firefighting according to claim 6, characterized in that: The inflation / deflation assembly (96) includes an air pump (961), and the air pipe (963) on the air pump (961) is connected to the center hole on the clutch rod (94) through a rotary sealing joint (962). The center hole is connected to the air bag (95) through an air passage opened on the clutch rod (94). The air pump (961), the air pipe (963) and the rotary sealing joint (962) are evenly located inside the housing (71).

8. The drone delivery pod for firefighting according to claim 6, characterized in that: The drive assembly (97) includes a driven wheel (971), a driving wheel (972), a motor (973), a movable ring (974), and a third telescopic power device (975). The driven wheel (971) is fixedly connected to the rough diameter section (942). The driven wheel (971) is meshed with the driving wheel (972). The driving wheel (972) is coaxially fixedly connected to the output shaft of the motor (973). The movable ring (974) is rotatably connected to the positioning groove on the rough diameter section (942). The positioning groove and the rough diameter section (942) are coaxially arranged. One end of the movable ring (974) is fixedly connected to the telescopic rod on the third telescopic power device (975).

9. The drone delivery pod for firefighting according to claim 1, characterized in that: There are four of each of the suspension ropes (2) and the slings (402). The bottom ends of the four suspension ropes (2) are arranged in a rectangular pattern at the four corners of the top surface of the balance plate (3), and the top ends of the four slings (402) are arranged in a rectangular pattern at the four corners of the bottom surface of the balance plate (3).

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