Water gun with adjustable spraying angle for unmanned aerial vehicle

Abstract

The utility model discloses a water gun with an adjustable spraying angle for an unmanned aerial vehicle. The water gun comprises a spraying pipe body, a detachable spraying head, a butterfly valve and a steering sleeve assembly. The detachable spray head is connected with the spray pipe main body through a rotary ball joint; the fixed end of the steering sleeve assembly is installed on the spray pipe body, and the acting end of the spray pipe body is connected with the rotating end of the rotating ball joint. Through connection and combination of the steering sleeve assembly, the rotating ball joint, the spray pipe body, the controllable butterfly valve and the detachable spray head, control over the spraying direction, the spraying flow and the spraying distance of the detachable spray head can be achieved, the direction flexibility of spraying of a fire extinguishing agent and the fire extinguishing efficiency are improved, and complex fire extinguishing scenes can be dealt with conveniently. The butterfly valve structure and the steering suite can be remotely controlled, and opening and closing of fire extinguishing agent conveying and omni-directional adjustment of the fire extinguishing agent spraying direction are achieved; the spraying distance and the spraying flow of the fire extinguishing agent are controlled by replacing the detachable spray head assembly; operation is easy and convenient, and fire extinguishing requirements can be rapidly responded.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to an adjustable water gun for drones. Background Technology

[0002] Drones equipped with water cannons are innovative devices that combine drone technology with high-pressure water jet systems. They are primarily used for firefighting, aerial cleaning, agricultural spraying, and forest fire prevention. Most drone platforms are multi-rotor drones. Drones equipped with water cannons offer advantages such as rapid response, proximity to fire sources (e.g., high-rise buildings, forest fires), and reduced risk to personnel. However, current drone water cannons have a simple structure, mostly only providing directional water intake and spraying functions, lacking spray direction and adjustment capabilities. This limited functionality means that changes in spray direction rely on drone platform attitude adjustments, which is difficult to execute. Spray adjustment also relies on ground-based delivery systems, resulting in operational delays for the pilot.

[0003] Therefore, it is necessary to develop a water gun with an adjustable spray angle for drones to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to design an adjustable water gun for drones to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An adjustable-angle water gun for drones includes:

[0007] The nozzle body; the first end of the nozzle body is connected to the extinguishing agent source;

[0008] Detachable nozzle; the first end of the detachable nozzle is connected to the second end of the nozzle body via a rotary ball joint, and the second end of the detachable nozzle is used to spray extinguishing agent;

[0009] A butterfly valve used for controlling the opening and closing of the nozzle body; the butterfly valve is installed on the nozzle body.

[0010] A steering sleeve assembly for adjusting the spray direction of a detachable nozzle; the fixed end of the steering sleeve assembly is mounted on the nozzle body, and the working end of the nozzle body is connected to the rotating end of the rotary ball joint.

[0011] Specifically, the steering sleeve assembly includes a first servo, a first servo arm, a first pull rod, a first rotating gripper, a first clamp, a second servo, a second servo arm, a second pull rod, and a second rotating gripper. Both the first and second servos are mounted on the nozzle body. The output end of the first servo is connected to the first end of the first servo arm. The second end of the first servo arm is hinged to the first end of the first pull rod. The second end of the first pull rod is hinged to the first end of the first rotating gripper. The second end of the first rotating gripper is connected to the first clamp. The first clamp is circumferentially fitted onto the rotating end of the rotary ball joint. The output end of the second servo is connected to the first end of the second servo arm. The second end of the second servo arm is hinged to the first end of the second pull rod. The second end of the second pull rod is hinged to the first end of the second rotating gripper. The second end of the second rotating gripper is connected to the first clamp. Both the first and second pull rods are arranged along the length of the nozzle body. The rotation plane of the first rotating gripper and the rotation plane of the second rotating gripper are perpendicular.

[0012] Furthermore, the steering sleeve assembly also includes multiple parallel second clamps, which are respectively fitted onto the nozzle body. Each second clamp has two protrusions with guide grooves. The length direction of the guide grooves is the radial direction of the nozzle body, and the guide grooves of the two protrusions are perpendicular to each other. The width of the guide grooves is slightly larger than the width of the first or second tie rod, and the opening direction of the guide grooves is the length direction of the nozzle body. The first tie rod passes through the guide groove on one of the protrusions of the multiple second clamps, and the second tie rod passes through the guide groove on the other protrusion of the multiple second clamps.

[0013] Preferably, both the first rotating jaw and the second rotating jaw are L-shaped.

[0014] Specifically, the rotary ball joint includes a ball head, a connecting rod, a ball head mounting component, and a ball head fastener. One end of the ball head is connected to the first end of the connecting rod, and the second end of the connecting rod is detachably connected to the first end of the detachable nozzle. The first end of the ball head mounting component has an arc-shaped groove inside, and the second end of the ball head is rotatably placed in the arc-shaped groove. The outer side wall of the first end of the ball head mounting component has an external thread, and correspondingly, the inner side wall of the first end of the ball head fastener has an internal thread. The first end of the ball head fastener and the first end of the ball head mounting component are threaded together. The ball head fastener is formed into a ring, and a retaining ring is provided radially inward at the second end of the ball head fastener. The retaining ring is used to hold the second end of the ball head in the arc-shaped groove. The second end of the ball head mounting component is detachably connected to the second end of the nozzle body.

[0015] Furthermore, an annular sealing groove is provided inside the arc-shaped groove, and the first sealing ring is installed inside the annular sealing groove.

[0016] Furthermore, the second end of the connecting rod is threadedly connected to the first end of the detachable nozzle, and the second end of the ball head mounting is threadedly connected to the second end of the nozzle body.

[0017] Furthermore, the butterfly valve includes a third servo motor, a valve body, a valve core, and a second sealing ring. The two ends of the valve body are respectively connected to the nozzle body cut into two sections. The third servo motor is installed above the valve body, and the valve core is installed in the middle channel of the valve body. The upper end of the valve core is connected to the output end of the third servo motor.

[0018] The beneficial effects of this utility model are as follows:

[0019] This application achieves control over the spray direction, spray flow rate, and spray distance of the detachable nozzle through the connection and combination of the steering sleeve assembly, rotating ball joint, nozzle body, controllable butterfly valve, and detachable nozzle, which greatly increases the directional flexibility and extinguishing efficiency of the extinguishing agent spray, making it easier to cope with complex and ever-changing fire extinguishing scenarios.

[0020] The butterfly valve structure and steering kit of this application can be remotely controlled to realize the opening and closing of the extinguishing agent delivery and the omnidirectional adjustment of the extinguishing agent spray direction; by replacing the detachable nozzle assembly, the spray distance and spray flow of the extinguishing agent can be controlled; the operation is simple and convenient and can quickly respond to fire extinguishing needs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of the second clamp in this application;

[0024] Figure 4 This is a schematic diagram of the ball head mounting structure in this application. Figure 1 ;

[0025] Figure 5 This is a schematic diagram of the ball head mounting structure in this application. Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the installation structure of the butterfly valve in this application;

[0027] Figure 7 This is a schematic diagram of the butterfly valve in this application;

[0028] Figure 8 This is a schematic diagram of the butterfly valve opening in this application;

[0029] Figure 9 This is a schematic diagram of the butterfly valve being closed in this application.

[0030] Legend: 1- Nozzle body; 2- Butterfly valve; 3- Steering sleeve assembly; 4- Detachable nozzle; 5- First servo motor; 6- First servo motor arm; 7- First pull rod; 8- First rotating gripper; 9- First clamp; 10- Second servo motor; 11- Second servo motor arm; 12- Second pull rod; 13- Second rotating gripper; 14- Second clamp; 15- Protrusion; 16- Guide groove; 17- Ball head; 18- Ball head fastener; 19- Ball head mounting piece; 20- Arc groove; 21- First sealing ring; 22- Valve core; 23- Valve body; 24- Second sealing ring; 25- Third servo motor. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0038] like Figure 1 and 2 As shown, a drone-mounted water gun with adjustable spray angle includes:

[0039] Nozzle body 1; the first end of nozzle body 1 is connected to the extinguishing agent source;

[0040] Detachable nozzle 4; The first end of the detachable nozzle 4 is connected to the second end of the nozzle body 1 via a rotary ball joint. The second end of the detachable nozzle 4 is used to spray fire extinguishing agent (the fire extinguishing agent is generally pure water or foam, so a pure water nozzle and a foam nozzle are set here and used interchangeably. The pure water nozzle is the nozzle used when the drone uses pure water for fire extinguishing, and the foam nozzle is the nozzle used when using air foam for fire extinguishing).

[0041] Butterfly valve 2 is used for opening and closing control of nozzle body 1; butterfly valve 2 is installed on nozzle body 1;

[0042] A steering sleeve assembly 3 is used for adjusting the spray direction of the detachable nozzle 4; the fixed end of the steering sleeve assembly 3 is installed on the nozzle body 1, and the working end of the nozzle body 1 is connected to the rotating end of the rotary ball joint.

[0043] like Figure 2 and 4As shown in Figure 6, the steering sleeve assembly 3 includes a first servo motor 5, a first servo motor arm 6, a first pull rod 7, a first rotating gripper 8, a first clamp 9, a second servo motor 10, a second servo motor arm 11, a second pull rod 12, and a second rotating gripper 13. The first servo motor 5 and the second servo motor 10 are respectively mounted on the nozzle body 1 via servo motor brackets. The output end of the first servo motor 5 is connected to the first end of the first servo motor arm 6. The second end of the first servo motor arm 6 is hinged to the first end of the first pull rod 7. The second end of the first pull rod 7 is hinged to the first end of the first rotating gripper 8. The first rotating gripper 8... The second end is connected to the first clamp 9, which is circumferentially fitted onto the rotating end of the rotary ball joint. The output end of the second servo motor 10 is connected to the first end of the second servo arm 11. The second end of the second servo arm 11 is hinged to the first end of the second pull rod 12. The second end of the second pull rod 12 is hinged to the first end of the second rotating gripper 13. The second end of the second rotating gripper 13 is connected to the first clamp 9. Both the first pull rod 7 and the second pull rod 12 are arranged along the length of the nozzle body 1. The rotation plane of the first rotating gripper 8 is perpendicular to the rotation plane of the second rotating gripper 13. The first servo motor 5 and the second servo motor 10 are 150KG servos.

[0044] like Figure 3 As shown, the steering sleeve assembly 3 also includes a plurality of parallel second clamps 14, which are respectively fitted onto the nozzle body 1. Each second clamp 14 has two protrusions 15, and each protrusion 15 has a guide groove 16. The length direction of the guide groove 16 is radial to the nozzle body 1. The guide grooves 16 of the two protrusions 15 are perpendicular to each other. The width of the guide groove 16 is slightly larger than the width of the first pull rod 7 or the second pull rod 12. The opening direction of the guide groove 16 is the length direction of the nozzle body 1. The first pull rod 7 passes through the guide groove 16 on one of the protrusions 15 of the plurality of second clamps 14, and the second pull rod 12 passes through the guide groove 16 on the other protrusion 15 of the plurality of second clamps 14.

[0045] like Figure 4 As shown, both the first rotating jaw 8 and the second rotating jaw 13 are L-shaped.

[0046] like Figure 4 and 5As shown, the rotary ball joint includes a ball head 17, a connecting rod, a ball head mounting part 19, and a ball head fastener 18. One end of the ball head 17 is connected to the first end of the connecting rod, and the second end of the connecting rod is detachably connected to the first end of the detachable nozzle 4. The first end of the ball head mounting part 19 has an arc-shaped groove 20 inside, and the second end of the ball head 17 is rotatably placed in the arc-shaped groove 20. The outer side wall of the first end of the ball head mounting part 19 has an external thread, and the inner side wall of the first end of the ball head fastener 18 has an internal thread. The first end of the ball head fastener 18 is threadedly engaged with the first end of the ball head mounting part 19. The ball head fastener 18 is formed into a ring, and a retaining ring is provided radially inward at the second end of the ball head fastener 18. The retaining ring is used to hold the second end of the ball head 17 in the arc-shaped groove 20. The second end of the ball head mounting part 19 is detachably connected to the second end of the nozzle body 1.

[0047] like Figure 5 As shown, an annular sealing groove is provided inside the arc-shaped groove 20, and the first sealing ring 21 is installed inside the annular sealing groove.

[0048] like Figure 5 As shown, the second end of the connecting rod is threadedly connected to the first end of the detachable nozzle 4, and the second end of the ball head mounting part 19 is threadedly connected to the second end of the nozzle body 1.

[0049] The main working principle of steering sleeve assembly 3 is as follows:

[0050] The servo arm rotates under the action of the servo motor. The clockwise and counterclockwise rotation of the servo arm respectively pushes the lever to the left or right to push the rotary ball joint. The different rotation angles and directions of the two sets of servo motors will be reflected on the rotary ball joint in the form of a compound angle. The rotary ball joint, with its rotating jaws, rotates around the center of the ball head 17 under the support and fixation of the ball head fastener 18, so that the detachable nozzle 4 can rotate at any angle within 15° of the axis (which can be achieved by remotely controlling the servo motor).

[0051] like Figure 7-9 As shown, the butterfly valve 2 includes a third servo motor 25, a valve body 23, a valve core 22, and a second sealing ring 24. Both ends of the valve body 23 are connected to the nozzle body 1, which is cut into two sections. The third servo motor 25 is mounted above the valve body 23, and the valve core 22 is installed in the middle channel of the valve body 23. The upper end of the valve core 22 is connected to the output end of the third servo motor 25. The third servo motor 25 is a 60KG servo motor. The valve core 22 and the valve body 23 are connected by a compression seal using the second sealing ring 24, which is an irregularly shaped sealing ring.

[0052] The main working principle of butterfly valve 2 is as follows:

[0053] When the 60KG servo motor is rotated 90° clockwise by remote control, the valve core 22 will also rotate 90°, and the butterfly valve 2 will change from the closed state to the open state. Conversely, it will change from the open state to the closed state.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A water gun with adjustable spray angle for a drone, characterized by, The utility model relates to a fire extinguishing device, including: a spray pipe body, a first end of the spray pipe body being connected to a fire extinguishing agent source; a detachable spray head, a first end of the detachable spray head being connected to a second end of the spray pipe body through a rotary ball joint, a second end of the detachable spray head being used for spraying the fire extinguishing agent, the detachable spray head being used for adjusting the spraying flow and the spraying distance; a butterfly valve used for opening and closing control of the spray pipe body; the butterfly valve being installed on the spray pipe body; a steering sleeve assembly used for adjusting the spraying direction of the detachable spray head, a fixed end of the steering sleeve assembly being installed on the spray pipe body, an acting end of the spray pipe body being connected to a rotating end of the rotary ball joint.

2. The water gun with adjustable spray angle for a drone according to claim 1, wherein The steering sleeve assembly includes a first steering engine, a first steering engine arm, a first pull rod, a first rotary clamp jaw, a first clamp hoop, a second steering engine, a second steering engine arm, a second pull rod and a second rotary clamp jaw, the first steering engine and the second steering engine being installed on the spray pipe body, an output end of the first steering engine being connected to a first end of the first steering engine arm, a second end of the first steering engine arm being hingedly connected to a first end of the first pull rod, a second end of the first pull rod being hingedly connected to a first end of the first rotary clamp jaw, a second end of the first rotary clamp jaw being connected to the first clamp hoop, the first clamp hoop being circumferentially sleeved on the rotating end of the rotary ball joint, an output end of the second steering engine being connected to a first end of the second steering engine arm, a second end of the second steering engine arm being hingedly connected to a first end of the second pull rod, a second end of the second pull rod being hingedly connected to a first end of the second rotary clamp jaw, a second end of the second rotary clamp jaw being connected to the first clamp hoop, the first pull rod and the second pull rod being arranged along the length direction of the spray pipe body, the rotating plane of the first rotary clamp jaw being perpendicular to the rotating plane of the second rotary clamp jaw. 3.The water gun with adjustable spray angle for unmanned aerial vehicle according to claim 2, wherein The steering sleeve assembly further includes a plurality of second clamp hoops which are parallel to each other, the plurality of second clamp hoops being respectively sleeved on the spray pipe body, two protruding portions being arranged on the second clamp hoop, a guide groove being arranged on the protruding portion, the length direction of the guide groove being the radial direction of the spray pipe body, the guide grooves of the two protruding portions being perpendicular to each other, the width of the guide groove being slightly greater than the width of the first pull rod or the second pull rod, the opening direction of the guide groove being the length direction of the spray pipe body, the first pull rod being arranged through the guide groove of one of the protruding portions of the plurality of second clamp hoops, and the second pull rod being arranged through the guide groove of the other protruding portion of the plurality of second clamp hoops.

4. The water gun with adjustable spray angle for a drone according to claim 2, wherein The first rotary clamp jaw and the second rotary clamp jaw are both formed in an L shape.

5. The water gun with adjustable spray angle for a drone according to claim 1, wherein The rotary ball joint includes a ball head, a connecting rod portion, a ball head mounting member and a ball head fastener, one end of the ball head being connected to a first end of the connecting rod portion, a second end of the connecting rod portion being detachably connected to a first end of the detachable spray head, an arc-shaped groove being arranged inside a first end of the ball head mounting member, a second end of the ball head being rotatably arranged in the arc-shaped groove, an outer thread being arranged on the outer side wall of the first end of the ball head mounting member, an inner thread being correspondingly arranged on the inner side wall of a first end of the ball head fastener, the first end of the ball head fastener being threadedly connected to the first end of the ball head mounting member, the ball head fastener being formed in a circular ring shape, a stop ring being radially protruded inwardly from a second end of the ball head fastener, the stop ring being used for clamping the second end of the ball head in the arc-shaped groove, and a second end of the ball head mounting member being detachably connected to a second end of the spray pipe body.

6. The water gun with adjustable spray angle for a drone according to claim 5, wherein An annular sealing groove is arranged in the arc-shaped groove, and a first sealing ring is arranged in the annular sealing groove.

7. The water gun with adjustable spray angle for a drone according to claim 5, wherein The second end of the connecting rod part is threadedly connected with the first end of the detachable spray head, and the second end of the ball head mounting part is threadedly connected with the second end of the spray pipe body. 8.The water gun with adjustable spray angle for a drone according to claim 1, wherein The butterfly valve comprises a third steering engine, a valve body, a valve core and a second sealing ring, the valve body is connected with the spray pipe body which is cut into two sections at two ends, the third steering engine is installed above the valve body, the valve core is installed in the middle channel of the valve body, and the upper end of the valve core is connected with the output end of the third steering engine. The butterfly valve comprises a third steering engine, a valve body, a valve core and a second sealing ring, the valve body is connected with the spray pipe body which is cut into two sections at two ends, the third steering engine is installed above the valve body, the valve core is installed in the middle channel of the valve body, and the upper end of the valve core is connected with the output end of the third steering engine.

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