Adjustable spraying device mounted on unmanned aerial vehicle

Abstract

The utility model discloses an adjustable spraying device installed on an unmanned aerial vehicle, which comprises a temporary storage water tank sleeved with a protective shell used for being installed on an external unmanned aerial vehicle; the hollow cross beam is arranged at the bottom of the temporary storage water tank and is communicated with the interior of the temporary storage water tank; the plurality of drainage pipes are uniformly arranged at the bottom of the hollow cross beam to facilitate drainage and spraying; the valve bodies are movably mounted in the drainage pipes and the hollow cross beam so as to close the drainage pipes; the spraying head is detachably mounted at the outer end of the drainage pipe to open the valve body; the air pumps are installed on the two sides of the bottom of the temporary storage water tank and discharge high-pressure air into the hollow cross beam. The spraying device can be adjusted according to the actual spraying area and the spraying amount through the detachable spraying head, and not only can be used for various spraying occasions, but also can ensure the spraying quality.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to an adjustable spraying device installed on a drone. Background Art

[0002] With the development of society and the advancement of science and technology, drones have been basically applied to all walks of life, such as agricultural production. Drone irrigation has been used in agricultural production. It combines aviation technology, remote sensing technology and spray technology, and can efficiently apply pesticides or fertilizers and monitor the health of crops. Drones can fly freely over farmland and plan flight paths through preset routes or GPS navigation systems, so as to accurately spray and apply pesticides to farmland to meet the needs of different crops.

[0003] Existing drones generally fly to a designated area when performing irrigation spraying, and then allow the water to freely fall through the spray head under the action of gravity to the location where irrigation is required. This spraying method makes the irrigation spraying efficiency low, requires multiple spraying, and has a small spray coverage area and low spray density.

[0004] After searching, it was found that the Chinese patent with patent number CN202223459694.4 discloses a drone spraying device for agricultural water-saving irrigation, including a drone and a spraying device fixedly connected to the bottom thereof, the drone includes an outer shell and a rotary arm fixedly connected on both sides thereof, the surface of the rotary arm is rotatably connected with a rotor, the bottom of the outer shell is fixedly connected with a support frame, and the support frames are fixedly connected with the spraying device. The utility model relates to the technical field of spraying equipment. The drone spraying device for agricultural water-saving irrigation improves the efficiency of spraying by expanding the spraying cotton knots on the spray rod and the oblique nozzle, and the water flow in the water cavity can be pressurized to the nozzle connected to the spray device and the spray rod through the extrusion device so that it rotates on the surface of the spray rod to expand the spraying area and make the water mist generated by the water flow denser.

[0005] However, according to the above-mentioned spraying equipment, when it is necessary to adjust the spraying amount according to actual cleaning (such as different vegetation requires different spraying amounts, or the same vegetation requires different spraying amounts at different growth stages, or the spraying amounts required by external weather are different, or the spraying amounts required for different spraying liquids are different, etc.), since the nozzle at the bottom is fixed, it is not convenient to adjust during the spraying process, resulting in low practicality. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an adjustable spray device installed on a drone, which is provided with a connected hollow beam at the bottom of the water tank, and a number of drain pipes are evenly arranged at the bottom of the hollow beam. Combined with the valve body and the air pump, uniform spraying can be achieved, and the valve body can be opened and closed through the detachable spray head, thereby realizing the opening and closing of the bottom drain pipe, which is convenient for adjusting the spraying amount according to actual conditions.

[0007] The utility model is implemented by constructing an adjustable spray device installed on a drone, comprising a temporary water storage tank, the outer portion of which is provided with a protective shell for installation with an external drone;

[0008] A hollow crossbeam is arranged at the bottom of the temporary water tank and is kept in communication with the interior of the temporary water tank;

[0009] Several drainage pipes are evenly arranged at the bottom of the hollow beam to facilitate drainage and spraying;

[0010] A plurality of valve bodies, movably installed in each of the drain pipes and the hollow cross beam to achieve the closure of the drain pipes;

[0011] The sprinkler head is detachably mounted on the outer end of the drain pipe to open the valve body;

[0012] The air pump is installed on both sides of the bottom of the temporary water tank and discharges high-pressure air into the hollow beam.

[0013] Specifically, a water inlet pipe is provided on the top of the temporary water tank, and a funnel or a plug is movably installed on the water inlet pipe.

[0014] Specifically, the hollow cross beam is horizontally installed at the bottom of the temporary water tank through a connecting pipe, an air pump is installed on the outside of the connecting pipe through a supporting shell, and the air pump and the hollow cross beam are connected through an exhaust pipe.

[0015] Specifically, one end of the valve body is inserted into the hollow beam from the drain pipe, and the other end is exposed outside the drain pipe. A sealing part is provided at the end of the valve body inside the hollow beam, and an elastic part is provided between the sealing part and the top of the hollow beam. The elastic part presses the sealing part of the valve body against the inner end of the hollow beam through elastic force to achieve sealing.

[0016] Specifically, the outer end of the drain pipe is provided with an external thread, the spray head is closed at one end and open at the other end, an internal thread matching the external thread of the drain pipe is provided on the inner side of the open end, the closed end of the spray head is a conical end, and drainage holes are evenly opened on the outer side of the conical end.

[0017] Specifically, a drainage slot hole is also provided at the inner end of the drainage pipe.

[0018] The utility model has the following beneficial effects:

[0019] The spray device can effectively increase the spraying area of ​​the UAV during flight by setting a hollow beam at the bottom of the water tank and drain pipes evenly arranged at the bottom of the hollow beam. At the same time, combined with an air pump, the sprayed liquid can be atomized to make the spraying more uniform. A valve body and a spray head are arranged in the drain pipe. When the spray head is separated from the drain pipe, the valve body is closed, that is, the drain pipe does not drain water. When the spray head is connected to the drain pipe, the valve body is opened, that is, the drain pipe drains water. The setting of the spray head can be adjusted according to the required spraying amount and other actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the specific implementation of the present invention, they are used to explain the present invention, but do not constitute any limitation to the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model (with a funnel installed on the top);

[0022] Figure 2 This is another structural schematic diagram of the utility model (top installation plug);

[0023] Figure 3 It is a schematic diagram of the structure of the utility model connected with a drone;

[0024] Figure 4 yes Figure 3 Schematic diagram of the front view direction;

[0025] Figure 5 It is a structural schematic diagram of the hollow crossbeam, valve body and sprinkler head of the utility model;

[0026] Figure 6 yes Figure 5 Schematic diagram of the front view direction;

[0027] Figure 7 yes Figure 5 Schematic diagram of the side view direction;

[0028] Figure 8 yes Figure 7 Schematic cross-sectional view along the AA direction;

[0029] Fig. 9 yes Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0030] Fig.10 yes Figure 5 A schematic diagram of the structure from another perspective;

[0031] Fig.11 yes Fig.10A partial enlarged schematic diagram of point C in the middle;

[0032] In the figure: 1. Temporary water tank; 2. Protective shell; 3. Water inlet pipe; 4. Funnel; 5. Connecting pipe; 6. Hollow beam; 7. Support shell; 8. Air pump; 9. Exhaust pipe; 10. Drain pipe; 10.1. Drain slot hole; 11. Valve body; 12. Sprinkler head; 13. Plug; 14. Drone; 15. Support column; 16. Elastic part. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further specifically described below through specific embodiments in combination with the accompanying drawings; it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not intended to limit the present invention in any way; the accompanying drawings in the present invention are only used to assist in the description of the embodiments and to facilitate understanding, and are not intended to limit the present invention in any way.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0035] As described in the background technology, the existing drones have a small spraying area, so they need to spray repeatedly during the spraying process. In order to expand the spraying area, some drones are equipped with multiple nozzles at the bottom. However, the spraying amount required varies according to actual conditions (such as different vegetation requires different spraying amounts, or the same vegetation requires different spraying amounts at different growth stages, or the spraying amount required due to external weather, or the spraying amount required for different spraying liquids, etc.), which makes it inconvenient to perform actual adjustments.

[0036] For the reasons stated above, please refer to the attached Figure 1 , the utility model provides an adjustable spray device installed on a drone, comprising a temporary water tank 1, the outer portion of which is provided with a protective shell 2 for installation with an external drone;

[0037] The hollow cross beam 6 is arranged at the bottom of the temporary water tank 1 and is kept in communication with the interior of the temporary water tank 1;

[0038] Several drainage pipes 10 are evenly arranged at the bottom of the hollow cross beam 6 to facilitate drainage and spraying;

[0039] A plurality of valve bodies 11 are movably installed in each of the drain pipes 10 and the hollow cross beam to achieve closing and opening of the drain pipes 10;

[0040] The spray head 12 is detachably mounted on the outer end of the drain pipe 10 to open the valve body 11;

[0041] The air pump 8 is installed on both sides of the bottom of the temporary water tank 1 and discharges high-pressure air into the hollow cross beam 6.

[0042] Specifically, a water inlet pipe 3 is provided on the top of the temporary water tank 1 , and a funnel 4 or a plug 13 is movably installed on the water inlet pipe 3 .

[0043] Through the above technical features, the funnel on the water inlet pipe is provided to facilitate the addition of liquid (the liquid can be clean water or mixed pesticides, etc.) into the temporary water tank, and the plug is provided to facilitate the blocking of the temporary water tank to prevent the internal liquid in the tank from shaking and being discharged from the water inlet pipe when the drone flies. At the same time, it also effectively prevents debris from falling into the temporary water tank and affecting subsequent cleaning.

[0044] Furthermore, in order to ensure that the plug does not fall off during the flight spraying process, the connection between the water inlet pipe and the plug adopts a stable and detachable connection method, such as threaded connection, bolt connection, etc.

[0045] Specifically, the hollow cross beam 6 is horizontally installed at the bottom of the temporary water tank 1 through the connecting pipe 5, and an air pump 8 is installed on the outside of the connecting pipe 5 through the supporting shell 7, and the air pump 8 and the hollow cross beam 6 are connected through the exhaust pipe 9.

[0046] Through the above technical features, the connection pipe is provided to facilitate the horizontal installation of the hollow beam at the bottom of the temporary water tank and connect it thereto, and it is also convenient for the installation of an air pump, etc.

[0047] Specifically, one end of the valve body 11 is inserted into the hollow beam 6 from the drain pipe 10, and the other end is exposed outside the drain pipe 10. A sealing portion is provided at the end of the valve body 11 inside the hollow beam 6. An elastic member 16 is provided between the sealing portion and the top of the hollow beam 6. The elastic member 16 presses the sealing portion of the valve body 11 against the inner end of the hollow beam 6 through elastic force to achieve sealing.

[0048] Through the above-mentioned technical features, the connection form between the valve body and the drain pipe is set to facilitate blocking the drain pipe. Combined with the elastic member and the sealing portion at the end of the valve body, it is ensured that when the sprinkler head is not installed and under the action of external force, the drain pipe will be blocked by the sealing portion under the action of elasticity. At the same time, through the setting of the elastic member, the sealing portion at the end of the valve body can be tightly attached to the position of the drain pipe to prevent leakage caused by the valve body moving up and down in the drain pipe when the drone is flying.

[0049] Specifically, the outer end of the drain pipe 10 is provided with an external thread, the spray head 12 is closed at one end and open at the other end, and an internal thread matching the external thread of the drain pipe 10 is provided on the inner side of the open end (for ease of display, only one spray head is shown, and the thread line is not shown), the closed end of the spray head 12 is a tapered end, and drainage holes are evenly opened on the outer side of the tapered end.

[0050] Through the above-mentioned technical features, the specific structure of the spray head and the connection method with the drain pipe are set to ensure that after the connection, the inner end of the spray head will push the valve body to move upward, thereby squeezing the elastic part, so that the sealing part of the valve body is separated from the end of the drain pipe at the inner end of the hollow beam 6, ensuring that the liquid in the hollow beam and the gas discharged by the air pump pass through the gap between the inner wall of the drain pipe and the valve body, and are discharged from the spray head to achieve spraying.

[0051] Specifically, the inner end of the drainage pipe 10 is further provided with a drainage slot hole 10.1.

[0052] Through the above technical features, the drainage groove hole at the inner end of the drain pipe is set to ensure that the liquid in the hollow beam and the gas discharged by the air pump can flow downward through the gap between the inner wall of the drain pipe and the valve body, avoiding the influence of spraying due to the small gap between the valve body and the drain pipe.

[0053] Specifically, in order to facilitate the installation of the spray device, the protective shell 2 outside the temporary water tank 1 is connected to the bottom of the drone 14. At the same time, in order to facilitate support, a support foot 15 is provided at the bottom of the drone 14. The setting of the support foot 15 makes it convenient for the spray device to add liquid or not work, so that the drain pipe and the valve body at the bottom will not contact the ground, which not only ensures stability, but also prevents the valve body from being placed on the ground due to the reaction force generated by gravity to push the valve body to move and cause leakage.

[0054] When the spraying device is in use, the device is pre-connected with the drone 14, and then it is moved to the area to be sprayed, and liquid is added to the temporary water tank 1 through the funnel 4. When the liquid level reaches a suitable level, the funnel 4 is removed and the plug 13 is installed. Then, according to the required spraying amount, the spray heads 12 are installed at the outer ends of the appropriate number of drain pipes 10 (if the spraying amount is large, the number of spray heads 12 installed is more. It is worth noting that the spray heads should be installed as evenly as possible to ensure the uniformity of the spraying) until the spray head 12 pushes the valve body 11 to move upward and liquid leakage can be achieved (in order to avoid liquid inside the hollow crossbeam during the installation process). In order to prevent excessive leakage of the liquid, an electric valve can be set on the connecting pipe 5 between the hollow cross beam 6 and the temporary water tank 1. Automatic spraying can be achieved through remote control of the electric valve to effectively avoid the problem of liquid leakage). After installation, the drone is flown to the designated path, and the air pump 8 is started and the electric valve on the connecting pipe 5 is opened. The liquid in the temporary water tank 1 flows into the hollow cross beam 6 under the action of gravity, flows into the sprinkler head 12 along the drainage slot hole 10.1 of the drainage pipe 10, and is discharged from the drainage hole at the outer conical end of the sprinkler head 12. At the same time, atomization is achieved under the action of high-pressure gas to improve the uniformity of spraying.

[0055] The above description is a detailed description of the preferred feasible embodiment of the utility model, but the embodiment is not used to limit the scope of the patent application of the utility model. All equivalent changes or modified changes completed under the technical spirit suggested by the utility model should fall within the patent scope covered by the utility model.

Claims

1. An adjustable spray device installed on a drone, characterized in that: include A temporary water storage tank, the outer portion of which is provided with a protective shell for mounting with an external drone; A hollow crossbeam is arranged at the bottom of the temporary water tank and is kept in communication with the interior of the temporary water tank; Several drainage pipes are evenly arranged at the bottom of the hollow beam to facilitate drainage and spraying; A plurality of valve bodies, movably installed in each of the drain pipes and the hollow cross beam to achieve the closure of the drain pipes; The sprinkler head is detachably mounted on the outer end of the drain pipe to open the valve body; The air pump is installed on both sides of the bottom of the temporary water tank and discharges high-pressure air into the hollow beam.

2. The adjustable spray device installed on a drone according to claim 1, characterized in that: A water inlet pipe is arranged on the top of the temporary water tank, and a funnel or a plug is movably installed on the water inlet pipe.

3. The adjustable spray device installed on a drone according to claim 1, characterized in that: The hollow cross beam is horizontally installed at the bottom of the temporary water tank through a connecting pipe, an air pump is installed on the outside of the connecting pipe through a supporting shell, and the air pump and the hollow cross beam are connected through an exhaust pipe.

4. The adjustable spray device installed on a drone according to claim 1, characterized in that: One end of the valve body is inserted into the hollow beam from the drain pipe, and the other end is exposed outside the drain pipe. A sealing part is arranged at the end of the valve body inside the hollow beam, and an elastic part is arranged between the sealing part and the top of the hollow beam. The elastic part presses the sealing part of the valve body against the inner end of the hollow beam through elastic force to achieve sealing.

5. The adjustable spray device installed on a drone according to claim 4, characterized in that: The outer end of the drain pipe is provided with an external thread, the spray head is closed at one end and open at the other end, an internal thread matching the external thread of the drain pipe is provided on the inner side of the open end, the closed end of the spray head is a tapered end, and drainage holes are evenly opened on the outer side of the tapered end.

6. The adjustable spray device installed on a drone according to claim 4, characterized in that: The inner end of the drainage pipe is also provided with a drainage slot hole.

Images