Fire-fighting unmanned plane spray assembly angle adjusting device

Abstract

The application discloses a fire-fighting unmanned plane jetting assembly angle adjusting device, and belongs to the field of fire-fighting unmanned planes. The fire-fighting unmanned plane jetting assembly angle adjusting device comprises a plane body, a landing frame is fixedly connected to the bottom of the plane body, three fixed rods in equilateral triangle distribution are fixedly arranged in parallel on the landing frame, an eye joint shaft is fixedly connected to one side of the front end of the plane body, a nozzle is fixedly arranged in the inner ring of the eye joint shaft, and a three-dimensional cooperative mechanism for driving the tail part of the nozzle to be inclined is arranged between the three fixed rods. The fire-fighting unmanned plane jetting assembly angle adjusting device can adjust the jetting angle through the three-dimensional cooperative control of the three push rods without adjusting the overall posture of the unmanned plane, reduces the operation difficulty, has lower technical requirements for firefighters, and can realize micron-level angle adjustment through the three-dimensional cooperative mechanism combined with closed-loop control, so that the jetting can be accurately aimed at the fire point and resource waste is reduced.

Description

Technical Field

[0001] This application relates to the field of fire-fighting drone technology, specifically a fire-fighting drone spray component angle adjustment device. Background Technology

[0002] Firefighting drones are unmanned aerial vehicle (UAV) systems specifically designed and developed for fire and rescue scenarios. By integrating multiple sensors, payloads, and intelligent technologies, they provide efficient and safe solutions for firefighting operations. Combining the flexibility of UAV technology with the professional requirements of firefighting operations, they have become an important technical equipment in modern firefighting systems.

[0003] Existing firefighting drones typically use a fixed installation method to attach the nozzles to the drone body when setting up the spray nozzles. However, in actual use, aligning the nozzles with the fire requires adjusting the drone's horizontal and vertical orientation, as well as its head direction. Changing the spray direction during this process necessitates further adjustments by manipulating the drone's flight attitude. This method is difficult to operate, demands a high level of technical skill from firefighters, and has poor practicality.

[0004] Therefore, this application provides a fire-fighting drone spray component angle adjustment device to solve the above problems. Utility Model Content

[0005] This application provides a fire-fighting drone spray component angle adjustment device, which aims to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a fire-fighting drone spray component angle adjustment device, comprising a drone body, a landing gear fixedly connected to the bottom of the drone body, three fixed rods arranged in an equilateral triangle fixedly on the landing gear, a fisheye joint shaft fixedly connected to one side of the landing gear corresponding to the front end of the drone body, a nozzle fixedly installed on the inner ring of the fisheye joint shaft, and a three-dimensional cooperative mechanism for driving the tail end of the nozzle to tilt between the three fixed rods, the three-dimensional cooperative mechanism comprising an equilateral triangular tube sleeve fitted on the tail end of the nozzle and fixedly connected to the nozzle, three push rods each connected to three sides of the equilateral triangular tube sleeve through a first ball joint, and a second ball joint connected to the end of the push rod away from the equilateral triangular tube sleeve and to the fixed rod, wherein the tail end of the nozzle is connected to an external water supply pipe. In this way, the spray angle can be adjusted by three degrees of freedom through three push rods without adjusting the overall attitude of the drone, reducing the difficulty of operation and lowering the technical requirements for firefighters. Furthermore, the three-dimensional collaborative mechanism combined with closed-loop control can achieve micron-level angle adjustment, ensuring that the spray is aimed at the fire point and reducing resource waste.

[0007] Preferably, the second ball joint is fixedly installed on the fixing rod by means of a sleeve clip.

[0008] Preferably, the movable end of the push rod is fixedly connected to the ball shaft of the first ball joint, and the bearing seat of the first ball joint is fixedly connected to the equilateral triangular tube sleeve.

[0009] Preferably, the tail end of the push rod is fixedly connected to the ball shaft of the second ball joint, and the bearing seat of the second ball joint is fixedly connected to the sleeve buckle.

[0010] Preferably, a Y-shaped bracket is fixedly connected to the side of the fixed rod away from the nozzle, and a water supply connector for connecting an external water supply pipe is fixedly connected to the center of the Y-shaped bracket. A corrugated pipe is fixedly installed between the water supply connector and the tail end of the nozzle.

[0011] The spray angle adjustment device of this fire-fighting drone spray component can adjust the spray angle without adjusting the overall attitude of the drone. It only requires three push rods to perform three degrees of freedom coordinated control, which reduces the difficulty of operation and lowers the technical requirements for firefighters.

[0012] The angle adjustment device of the fire-fighting drone's spray component, combined with a three-dimensional collaborative mechanism and closed-loop control, can achieve micron-level angle adjustment, ensuring that the spray is aimed at the fire point and reducing resource waste.

[0013] The angle adjustment device of the spray component of the fire-fighting drone, with the displacement compensation of the corrugated pipe, can fix the position of the water supply connector. This prevents the water supply pipe from swinging when the spray nozzle angle is adjusted, thus facilitating the stability of the flight attitude. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a fire-fighting drone spray component angle adjustment device; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0015] In the picture: 1. Unmanned aerial vehicle (UAV) airframe; 2. Landing rack; 21. Fixing rod; 22. Fisheye joint axis; 23. Y-shaped support; 3. Nozzle; 4. Three-dimensional collaborative mechanism; 41. Equilateral triangular tube sleeve; 411. First ball joint; 42. Push rod; 43. Second ball joint; 44. Tube sleeve buckle; 5. Corrugated pipe; 6. Water supply connector. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] This embodiment provides a fire-fighting drone spray component angle adjustment device, such as... Figures 1-2 As shown, the angle adjustment device for the spray component of the fire-fighting drone includes a drone body 1. A landing gear 2 is fixedly connected to the bottom of the drone body 1. Three fixed rods 21 arranged in an equilateral triangle are fixedly fixed on the landing gear 2. A fisheye joint shaft 22 is fixedly connected to one side of the landing gear 2 corresponding to the front end of the drone body 1. A nozzle 3 is fixedly installed on the inner ring of the fisheye joint shaft 22. A three-dimensional cooperative mechanism 4 for driving the tail of the nozzle 3 to tilt is provided between the three fixed rods 21. The three-dimensional cooperative mechanism 4 includes an equilateral triangular tube sleeve 41 fitted on the tail of the nozzle 3 and fixedly connected to the nozzle 3, three push rods 42 connected to the three sides of the equilateral triangular tube sleeve 41 respectively through a first ball joint 411, and a second ball joint 43 connected to the end of the push rod 42 away from the equilateral triangular tube sleeve 41 and the fixed rod 21. The tail end of the nozzle 3 is connected to an external water supply pipe.

[0018] In use, the equilateral triangular tube sleeve 41 is a tubular structure with an equilateral triangular cross-section. Its three sides are connected to the ends of three push rods 42 through the first ball joint 411. The other end of each push rod 42 is connected to the corresponding fixed rod 21 through the second ball joint 43. The three push rods 42 are evenly distributed in a 120° circle. When it is necessary to adjust the spray direction, by controlling the extension and retraction of the three push rods 42 respectively, the omnidirectional rotation characteristics of the ball joints are used to make the equilateral triangular tube sleeve 41 drive the tail of the nozzle 3 to produce a tilting motion in three-dimensional space. Since the front end of the nozzle 3 forms a single degree of freedom rotation constraint with the landing gear 2 through the fisheye joint axis 22, the coordinated extension and retraction of the push rods 42 will be transformed into a composite angle adjustment of the nozzle 3 spray nozzle 32 in the pitch, yaw and roll directions. By preset the extension and retraction ratio of the push rods 42, the spray direction can be quickly positioned and dynamically tracked. The spray direction adjustment is decoupled from the UAV flight attitude control, and the operator can adjust the nozzle angle independently, which significantly reduces the complexity of multi-degree-of-freedom control.

[0019] Specifically, the second ball joint 43 is fixedly installed on the fixed rod 21 by the sleeve buckle 44; the rigid fixation between the sleeve buckle 44 and the fixed rod 21 ensures efficient transmission of the pushing or pulling force of the push rod 42, avoids energy loss, and facilitates disassembly, assembly, maintenance and replacement.

[0020] Specifically, the movable end of the push rod 42 is fixedly connected to the ball shaft of the first ball joint 411, the bearing of the first ball joint 411 is fixedly connected to the equilateral triangular sleeve 41, the tail end of the push rod 42 is fixedly connected to the ball shaft of the second ball joint 43, and the bearing of the second ball joint 43 is fixedly connected to the sleeve buckle 44. The first ball joint 411 allows the push rod 42 to deflect at multiple angles with the equilateral triangular sleeve 41, avoiding movement jamming caused by machining errors of the equilateral triangular sleeve 41 or deformation of the nozzle 3. The ball shaft of the second ball joint 43 is connected to the tail end of the push rod 42, allowing the push rod 42 to deflect at a small angle around the center of the ball joint during movement, eliminating movement interference caused by machining errors or assembly deviations of the fixed rod 21.

[0021] Furthermore, a Y-shaped bracket 23 is fixedly connected to the side of the fixed rod 21 away from the nozzle 3. A water supply connector 6 for connecting an external water supply pipe is fixedly connected to the center of the Y-shaped bracket 23. A bellows 5 is fixedly installed between the water supply connector 6 and the tail end of the nozzle 3. When the nozzle 3 is adjusted in angle, the bellows 5 absorbs the relative displacement between the nozzle 3 and the water supply connector 6 through elastic deformation, maintaining the water circuit seal. At the same time, the displacement compensation of the bellows 5 allows the position of the water supply connector 6 to be fixed. In this way, when the nozzle 3 is adjusted in angle, the water supply pipe will no longer be shaken, which is conducive to the stability of the flight attitude.

[0022] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A fire-fighting drone spray component angle adjustment device, comprising a drone body (1), characterized in that: The bottom of the UAV body (1) is fixedly connected to a landing gear (2). Three fixed rods (21) arranged in an equilateral triangle are fixedly fixed on the landing gear (2). A fisheye joint shaft (22) is fixedly connected to one side of the landing gear (2) corresponding to the front end of the UAV body (1). A nozzle (3) is fixedly installed on the inner ring of the fisheye joint shaft (22). A three-dimensional cooperative mechanism (4) for driving the tail of the nozzle (3) to tilt is provided between the three fixed rods (21). The three-dimensional cooperative mechanism (4) includes an equilateral triangular tube sleeve (41) fitted on the tail of the nozzle (3) and fixedly connected to the nozzle (3), three push rods (42) connected to the three sides of the equilateral triangular tube sleeve (41) respectively through a first ball joint (411), and a second ball joint (43) connected to the end of the push rod (42) away from the equilateral triangular tube sleeve (41) and the fixed rod (21). The tail end of the nozzle (3) is connected to an external water supply pipe.

2. The angle adjustment device for the spray assembly of the fire-fighting drone according to claim 1, characterized in that: The second ball joint (43) is fixedly installed on the fixed rod (21) by means of the sleeve buckle (44).

3. The angle adjustment device for the spray assembly of the fire-fighting drone according to claim 2, characterized in that: The movable end of the push rod (42) is fixedly connected to the ball shaft of the first ball joint (411), and the bearing of the first ball joint (411) is fixedly connected to the equilateral triangular tube sleeve (41).

4. The angle adjustment device for the spray assembly of the fire-fighting drone according to claim 3, characterized in that: The tail end of the push rod (42) is fixedly connected to the ball shaft of the second ball joint (43), and the bearing seat of the second ball joint (43) is fixedly connected to the sleeve buckle (44).

5. The angle adjustment device for the spray assembly of the fire-fighting drone according to claim 4, characterized in that: A Y-shaped bracket (23) is fixedly connected between the fixed rods (21) on the side away from the nozzle (3). A water supply connector (6) for connecting an external water supply pipe is fixedly connected to the center of the Y-shaped bracket (23). A corrugated pipe (5) is fixedly installed between the water supply connector (6) and the tail end of the nozzle (3).

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