Multi-jet pesticide spraying plant protection unmanned aerial vehicle

Abstract

The application belongs to the technical field of plant protection unmanned planes, and discloses a multi-nozzle pesticide spraying plant protection unmanned plane, which comprises a plant protection unmanned plane and further comprises: a pesticide storage cylinder, which is arranged at the bottom of the plant protection unmanned plane; a protective cover, which is arranged at the middle of the bottom end of the pesticide storage cylinder and is provided with an opening mechanism at the bottom; and a multi-nozzle assembly. According to the technical scheme, the multi-nozzle assembly and the lifting mechanism are arranged, and the protective cover and the opening mechanism are designed, so that the whole multi-nozzle assembly can be shielded in the interior, and then the bottom part of the lifting mechanism can be driven to rotate and drive the two side parts to move in opposite directions, so that the top part of the lifting mechanism pulls the whole multi-nozzle assembly to extend downward out of the protective cover, thereby achieving the purpose of shielding and extending the multi-nozzle assembly for open use. When shielding, dust and impurities in the outside can be avoided from entering, thereby affecting the subsequent pesticide spraying.

Description

Technical Field

[0001] This invention belongs to the field of agricultural drone technology, specifically a multi-nozzle pesticide spraying agricultural drone. Background Technology

[0002] Agricultural spraying drones are unmanned aircraft used in modern agriculture for the protection of agricultural and forestry plants. By carrying spraying devices and utilizing advanced flight platforms and navigation and flight control technology, they can achieve efficient and precise pesticide spraying operations.

[0003] Existing agricultural pesticide drones typically have a pesticide tank at the bottom of the drone, with the nozzle usually located at the bottom of the propeller or the bottom of the pesticide tank to smoothly spray the pesticide from the tank. However, since the nozzle at the bottom is directly exposed to the outside, dust and impurities can accumulate inside the nozzle when there is a restriction, causing blockage and affecting subsequent pesticide spraying. Therefore, improvements are needed. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides a multi-nozzle pesticide spraying drone, which has the advantage of providing shielding and protection for the nozzles when they are not in use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-nozzle pesticide spraying plant protection drone, comprising a plant protection drone and further comprising: a pesticide storage tank disposed at the bottom of the plant protection drone; a protective cover disposed at the middle of the bottom end of the pesticide storage tank, the bottom of the protective cover having an opening mechanism; a multi-nozzle assembly disposed at the middle of the bottom end of the drone battery, and the multi-nozzle assembly being located inside the protective cover; and a lifting mechanism installed inside the protective cover, and the lifting mechanism being located at the top of the back of the multi-nozzle assembly; wherein, the lifting mechanism includes a sliding member fixedly installed at the top of the back of the multi-nozzle assembly, a drive motor disposed at the bottom of the sliding member inside the protective cover, a drive gear fixedly sleeved on the top of the drive motor, a transmission gear slidably connected inside the protective cover to the outside of the drive gear, and the inner side of the top of the transmission gear being hinged to both sides of one end of the sliding member through a connecting arm.

[0006] Preferably, the surface of the driving gear meshes with the inner surface of the transmission gear.

[0007] Preferably, the plant protection drone has a drone battery located at the center of its top, and a landing support frame located on both sides of the pesticide storage cylinder at the bottom.

[0008] Preferably, the multi-nozzle assembly includes a delivery valve pipe, a first nozzle pipe, and an extended nozzle pipe;

[0009] The delivery valve tube is fixedly installed in the middle of the bottom of the pesticide storage cylinder, the first nozzle tube is movably sleeved on the bottom of the delivery valve tube, and the extended nozzle tube is slidably sleeved on the inside of both ends of the first nozzle tube.

[0010] Preferably, the top end of the delivery valve pipe is connected to the inner cavity of the pesticide storage cylinder, and the delivery valve pipe, the first nozzle pipe, and the extended nozzle pipe are also interconnected.

[0011] Preferably, the opening mechanism includes a baffle plate, a connecting frame, a power motor, a rotating disk, a limiting frame, and a second spring;

[0012] The shield is slidably connected to both sides of the bottom of the protective cover. The connecting frame is set on one side of the shield. The power motor is fixedly installed inside the protective cover and is located on the side near the middle of the connecting frame. The rotating disk is fixedly sleeved on the output end of the power motor and is located on one side of the connecting frame. The limiting frame is fixedly installed on one side of the protective cover and is located in the middle of the connecting frame. The outer side of the connecting frame is elastically connected to the outer end of the limiting frame through a second spring.

[0013] Preferably, the upper and lower ends of one side of the rotating disk are provided with protruding parts that are movably connected to the inner side of the connecting frame.

[0014] Preferably, the inner wall of the middle part of the connecting frame is slidably connected to the surface of the limiting frame, and the surface of the limiting frame is slidably connected to the inner side of the second spring.

[0015] Preferably, a linkage assembly is provided on the back of the first nozzle pipe, the linkage assembly including a sliding sleeve, a connecting sliding block, a telescopic cylinder, a first spring, a fixing rod and an inclined block;

[0016] The sliding sleeve is fixedly installed in the middle of the back of the first nozzle tube. The connecting sliding block is slidably connected to the surface of the sliding sleeve. The telescopic cylinder is fixedly installed on the top of one side of the connecting sliding block, and the top of the telescopic cylinder is fixedly connected to the inner side of the bottom of the transmission gear. The fixing rod is fixedly installed in the middle of the outer side of the back of the extended nozzle tube. The inner end of the fixing rod extends into the interior of the sliding sleeve and is slidably connected to the inner wall of the sliding sleeve. The outer end of the connecting sliding block is elastically connected to the inner end of the fixing rod through a first spring. The inclined block is fixedly installed in the middle of the top of the extended nozzle tube.

[0017] Preferably, the top of the inclined block is designed with an inclined surface.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The above technical solution, by setting up a multi-nozzle assembly and a lifting mechanism, can shield and protect the multi-nozzle assembly by keeping it entirely inside due to the design of the protective cover and the opening mechanism. When the bottom part of the lifting mechanism is driven, the output end rotates, causing the two sides of the bottom to move in opposite directions. This causes the top part of the lifting mechanism to pull the multi-nozzle assembly downwards and extend it into the protective cover, thus achieving the purpose of shielding and protecting the multi-nozzle assembly and allowing it to be used openly. When shielding, it prevents external dust and impurities from entering and affecting the subsequent spraying of pesticides.

[0020] This invention, by setting up a linkage component, when the two ends at the bottom of the lifting mechanism are driven to move in opposite directions, will synchronously drive the two ends on one side of the linkage component to move in opposite directions. This causes the outer end of the linkage component to be released as the multi-nozzle assembly extends downwards as a whole, thereby driving the two ends of the multi-nozzle assembly to extend. This increases the number of nozzles in the multi-nozzle assembly, thereby increasing the spraying range and greatly improving the efficiency of pesticide spraying.

[0021] This invention incorporates a shielding plate, a rotating disk, and a second spring. Due to the elastic force of the second spring, the connecting frame and the shielding plate move in opposite directions, effectively sealing the bottom of the protective cover and protecting the multi-nozzle assembly inside. Then, the power motor is activated, causing the rotating disk to rotate. This causes the protruding part on the outer side of the rotating disk to push the two connecting frames and the shielding plate in opposite directions, ultimately releasing the seal on the bottom of the protective cover. This allows the multi-nozzle assembly to be easily extended from inside the protective cover for subsequent pesticide spraying. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the open mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the second spring of the present invention;

[0025] Figure 4 This is a cross-sectional view of the sliding component of the present invention;

[0026] Figure 5 for Figure 4 A magnified schematic diagram of the partial structure at point A in the middle;

[0027] Figure 6 This is a schematic diagram of the structure of the linkage component of the present invention;

[0028] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point B in the middle.

[0029] In the diagram: 1. Agricultural drone; 2. Drone battery; 3. Pesticide storage container; 4. Landing support frame; 5. Protective cover; 6. Multi-nozzle assembly; 601. Delivery valve pipe; 602. First nozzle pipe; 603. Extended nozzle pipe; 7. Lifting mechanism; 701. Sliding component; 702. Drive motor; 703. Drive gear; 704. Transmission gear; 705. Connecting arm; 8. Linkage assembly; 801. Sliding sleeve; 802. Connecting sliding block; 803. Telescopic cylinder; 804. First spring; 805. Fixed rod; 806. Inclined block; 9. Opening mechanism; 901. Baffle plate; 902. Connecting frame; 903. Power motor; 904. Rotary disk; 905. Limiting frame; 906. Second spring. Detailed Implementation

[0030] 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.

[0031] like Figures 1 to 7 As shown, the present invention provides a multi-nozzle pesticide spraying drone, including a drone 1, and further comprising: a pesticide storage tank 3, disposed at the bottom of the drone 1; a protective cover 5, disposed at the center of the bottom of the pesticide storage tank 3, with an opening mechanism 9 at the bottom of the protective cover 5; a multi-nozzle assembly 6, disposed at the center of the bottom of the drone battery 2, and located inside the protective cover 5; and a lifting mechanism 7, installed inside the protective cover 5, and lifting... The lifting mechanism 7 is located at the top of the back of the multi-nozzle assembly 6; wherein, the lifting mechanism 7 includes a sliding member 701 fixedly installed at the top of the back of the multi-nozzle assembly 6, a drive motor 702 located at the bottom of the sliding member 701 is provided inside the protective cover 5, a drive gear 703 is fixedly sleeved on the top of the drive motor 702, a transmission gear 704 located outside the drive gear 703 is slidably connected inside the protective cover 5, and the inner side of the top of the transmission gear 704 is hinged to both sides of one end of the sliding member 701 through a connecting arm 705.

[0032] When the drive opening mechanism 9 releases the seal on the bottom of the protective cover 5, the drive motor 702 can be started to drive the drive gear 703 to rotate, which in turn drives the two transmission gears 704 to move in opposite directions. Then, the two connecting arms 705 will deflect and pull the sliding member 701 and the multi-nozzle assembly 6 to move downward as a whole, fully extending them into the protective cover 5, thus enabling subsequent pesticide spraying operations.

[0033] like Figure 5 and Figure 7 As shown, the surface of the drive gear 703 meshes with the inner surface of the transmission gear 704.

[0034] Using the above scheme: when the drive motor 702 runs and drives the drive gear 703 to rotate, the teeth on the surface of the drive gear 703 can drive the teeth on the inner side of the transmission gear 704, thereby smoothly driving the two transmission gears 704 to move in opposite directions, so that the two connecting arms 705 deflect, which can pull the sliding member 701 and the multi-nozzle assembly 6 to move downward and extend.

[0035] like Figure 1 As shown, the top center of the plant protection drone 1 is equipped with a drone battery 2, and the bottom of the plant protection drone 1 is equipped with landing support frames 4 located on both sides of the pesticide storage cylinder 3.

[0036] The above solution is adopted: the design of the landing support frame 4 can provide auxiliary support when the agricultural drone 1 stops operating and lands.

[0037] like Figure 2 As shown, the multi-nozzle assembly 6 includes a delivery valve pipe 601, a first nozzle pipe 602, and an extended nozzle pipe 603;

[0038] The delivery valve pipe 601 is fixedly installed in the middle of the bottom end of the pesticide storage cylinder 3. The first nozzle pipe 602 is movably sleeved on the bottom of the delivery valve pipe 601. The extended nozzle pipe 603 is slidably sleeved on both ends of the first nozzle pipe 602.

[0039] The top end of the delivery valve pipe 601 is connected to the inner cavity of the pesticide storage cylinder 3. The delivery valve pipe 601, the first nozzle pipe 602, and the extended nozzle pipe 603 are also interconnected.

[0040] Using the above scheme: when the start-up delivery valve pipe 601 is opened, the pesticide inside the pesticide storage cylinder 3 can be delivered by the delivery valve pipe 601 to the first nozzle pipe 602 and the extended nozzle pipe 603. Then the pesticide can be sprayed out through the first nozzle pipe 602 and the extended nozzle pipe 603 to achieve the purpose of pesticide irrigation.

[0041] like Figure 2 and Figure 3 As shown, the opening mechanism 9 includes a baffle plate 901, a connecting frame 902, a power motor 903, a rotating disk 904, a limiting frame 905, and a second spring 906;

[0042] The baffle plate 901 is slidably connected to both sides of the bottom of the protective cover 5. The connecting frame 902 is set on one side of the baffle plate 901. The power motor 903 is fixedly installed inside the protective cover 5, and the power motor 903 is located on one side near the middle of the connecting frame 902. The rotating disk 904 is fixedly sleeved on the output end of the power motor 903 and is located on one side of the connecting frame 902. The limiting frame 905 is fixedly installed on one side of the protective cover 5, and the limiting frame 905 is located in the middle of the connecting frame 902. The outer side of the connecting frame 902 is elastically connected to the outer end of the limiting frame 905 through the second spring 906.

[0043] The upper and lower ends of one side of the rotating disk 904 are provided with protruding parts that are movably connected to the inner side of the connecting frame 902.

[0044] The above solution is adopted: by setting a rotating disk 904, when the power motor 903 runs, the output end drives the rotating disk 904 to rotate, which will cause the upper and lower protruding parts on one side of the rotating disk 904 to smoothly squeeze and push the two connecting frames 902 to move in opposite directions, thereby achieving the effect of driving the two connecting frames 902 and the baffle plate 901 to release the bottom sealing of the protective cover 5.

[0045] like Figure 3 As shown, the inner wall of the middle part of the connecting frame 902 is slidably connected to the surface of the limiting frame 905, and the surface of the limiting frame 905 is slidably connected to the inner side of the second spring 906.

[0046] The above solution is adopted: through the design of the limiting frame 905, the movement of the connecting frame 902 towards or away from each other and the overall extension and retraction of the second spring 906 can be limited.

[0047] like Figure 6 and Figure 7 As shown, a linkage assembly 8 is provided on the back of the first nozzle pipe 602. The linkage assembly 8 includes a sliding sleeve 801, a connecting sliding block 802, a telescopic cylinder 803, a first spring 804, a fixing rod 805, and an inclined block 806.

[0048] A sliding sleeve 801 is fixedly installed in the middle of the back of the first nozzle tube 602. A connecting sliding block 802 is slidably connected to the surface of the sliding sleeve 801. A telescopic cylinder 803 is fixedly installed on the top of one side of the connecting sliding block 802, and the top of the telescopic cylinder 803 is fixedly connected to the inner side of the bottom of the transmission gear 704. A fixing rod 805 is fixedly installed in the middle of the outer side of the back of the extended nozzle tube 603. The inner end of the fixing rod 805 extends into the interior of the sliding sleeve 801 and is slidably connected to the inner wall of the sliding sleeve 801. The outer end of the connecting sliding block 802 is elastically connected to the inner end of the fixing rod 805 through a first spring 804. An inclined block 806 is fixedly installed in the middle of the top of the extended nozzle tube 603.

[0049] The above solution is adopted as follows: When the transmission gear 704 moves in opposite directions, it will simultaneously drive the two telescopic cylinders 803 and the connecting sliding block 802 to move in opposite directions. When the first nozzle pipe 602 and the extended nozzle pipe 603 move downward as a whole due to the opposite movement of the transmission gear 704, the telescopic design of the telescopic cylinder 803 allows the connecting sliding block 802 to smoothly and synchronously deliver the valve pipe 601 downward along the surface of the sliding sleeve 801 to compress the first spring 804. Then, by compressing the first spring 804 and releasing it, it will push the two fixed rods 805 and the extended nozzle pipe 603 to extend in opposite directions, thereby increasing the pesticide spraying atmosphere.

[0050] like Figure 6 As shown, the top of the inclined block 806 adopts an inclined design.

[0051] Using the above solution: Through the inclined surface design inside the inclined block 806, when the extended nozzle pipe 603 and the first nozzle pipe 602 are driven upward to reset, the bottom of the protective cover 5 presses against the top inclined surface of the inclined block 806, causing the two extended nozzle pipes 603 to move towards each other, thus achieving the effect of assisting in retracting into the inside of both sides of the delivery valve pipe 601.

[0052] Working principle and usage process of this invention:

[0053] First, the operator can control the entire plant protection drone 1 to fly in the air. Then, when it is necessary to spray pesticides, the power motor 903 can be started. The operation of the power motor 903 will cause the output end to drive the rotating disk 904 to rotate. At this time, the upper and lower protruding parts on one side of the rotating disk 904 will squeeze and push the two connecting frames 902 and the shielding plate 901 to move in opposite directions. This will successfully release the shielding and sealing effect on the bottom of the protective cover 5, that is, release the shielding and protection effect on the bottom of the multi-nozzle assembly 6.

[0054] Then, the drive motor 702 can be started. The operation of the drive motor 702 can drive the drive gear 703 to rotate. At this time, due to the meshing relationship between the surface of the drive gear 703 and the inner side of the transmission gear 704, the rotation of the drive gear 703 will cause the two transmission gears 704 to move in opposite directions. The opposite movement of the transmission gears 704 will drive the two connecting arms 705 to deflect, so that the connecting arms 705 can pull the top hinged sliding member 701, the first nozzle pipe 602 and the extended nozzle pipe 603 to move downward as a whole.

[0055] At the same time, the opposing movement of the transmission gear 704 will simultaneously drive the telescopic cylinder 803 and the connecting sliding block 802 to move in opposite directions along the surface of the sliding sleeve 801. Meanwhile, the opposing movement of the connecting sliding block 802 will compress the first spring 804. At this time, since the delivery valve pipe 601 is driven downward, the design of the telescopic cylinder 803 can smoothly keep the delivery valve pipe 601, the sliding sleeve 801 and the connecting sliding block 802 moving downward smoothly as a whole. Subsequently, as the delivery valve pipe 601 is fully extended, the inner wall of the protective cover 5 will release the supporting effect on the fixed rod 805 and the extended nozzle pipe 603. Finally, the compressed first spring 804 will release its elasticity, thereby pushing the two fixed rods 805 and the extended nozzle pipe 603 to move in opposite directions and extend to both sides. Then, by activating the delivery valve pipe 601, the pesticide inside the pesticide storage cylinder 3 can be smoothly sprayed out by the first nozzle pipe 602 and the extended nozzle pipe 603.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-nozzle pesticide spraying agricultural protection unmanned aerial vehicle, comprising an agricultural protection unmanned aerial vehicle (1), characterized in that: Also include: Pesticide storage cylinder (3), the pesticide storage cylinder (3) is set up in the bottom of the plant protection unmanned plane (1); Shield (5), the shield (5) is set up in the middle of the bottom of pesticide storage cylinder (3), the bottom of shield (5) is provided with open mechanism (9); Multi-jet assembly (6), the multi-jet assembly (6) is set up in the middle of the bottom of unmanned plane battery (2), and the multi-jet assembly (6) is located in the inside of shield (5); Lifting mechanism (7), the lifting mechanism (7) is installed in the inside of shield (5), and the lifting mechanism (7) is located in the top of the back of multi-jet assembly (6); Wherein, the lifting mechanism (7) includes the sliding piece (701) fixedly installed in the top of the back of multi-jet assembly (6), the inside of shield (5) is provided with the drive motor (702) located in the bottom of sliding piece (701), the top of drive motor (702) is fixedly sleeved with driving gear (703), the inside of transmission gear (704) is slidably connected with the outside of driving gear (703), the inside of transmission gear (704) top is hinged with both sides of one end of sliding piece (701) through connecting arm (705); The multi-jet assembly (6) includes a delivery valve pipe (601), a first jet pipe (602) and an elongated jet pipe (603); The delivery valve pipe (601) is fixedly installed in the middle of the bottom of pesticide storage cylinder (3), the first jet pipe (602) is movably sleeved in the bottom of delivery valve pipe (601), and the elongated jet pipe (603) is slidably sleeved in the inside of both ends of first jet pipe (602); The open mechanism (9) includes a shielding plate (901), a connecting frame (902), a power motor (903), a rotating disc (904), a limiting frame (905) and a second spring (906); The shielding plate (901) is slidably connected to both sides of the bottom of shield (5), the connecting frame (902) is arranged on one side of shielding plate (901), the power motor (903) is fixedly installed in the inside of shield (5), and the power motor (903) is located on one side close to the middle of connecting frame (902), the rotating disc (904) is fixedly sleeved on the output end of power motor (903) and located on one side of connecting frame (902), the limiting frame (905) is fixedly installed on one side of shield (5), and the limiting frame (905) is located in the middle of connecting frame (902), the outside of connecting frame (902) is elastically connected with the outer end of limiting frame (905) through the second spring (906); The back of first jet pipe (602) is provided with linkage assembly (8), the linkage assembly (8) includes sliding sleeve (801), connecting sliding block (802), telescopic cylinder (803), first spring (804), fixed rod (805) and inclined block (806); The sliding sleeve (801) is fixedly installed at the middle of the back of the first nozzle pipe (602), the connecting sliding block (802) is slidably connected to the surface of the sliding sleeve (801), the telescopic cylinder (803) is fixedly installed at the top of one side of the connecting sliding block (802), and the top of the telescopic cylinder (803) is fixedly connected to the inner side of the bottom of the transmission gear (704), the fixed rod (805) is fixedly installed at the middle of the outer side of the back of the lengthened nozzle pipe (603), the inner end of the fixed rod (805) extends into the inside of the sliding sleeve (801) and is slidably connected to the inner wall of the sliding sleeve (801), the outer end of the connecting sliding block (802) is elastically connected to the inner end of the fixed rod (805) through the first spring (804), and the inclined block (806) is fixedly installed at the middle of the top end of the lengthened nozzle pipe (603).

2. The multi-jet pesticide spraying agricultural protection unmanned aerial vehicle according to claim 1, characterized in that: The surface of the driving gear (703) is engaged with the inner side surface of the transmission gear (704).

3. The multi-jet pesticide spraying agricultural UAV of claim 1, wherein: The top end of the plant protection unmanned plane (1) is provided with the unmanned plane battery (2), and the bottom of the plant protection unmanned plane (1) is provided with the landing support frame (4) located on the two sides of the pesticide storage cylinder (3).

4. The multi-jet pesticide spraying agricultural UAV of claim 1, wherein: The top end of the conveying valve pipe (601) is in communication with the inner cavity of the pesticide storage cylinder (3), and the conveying valve pipe (601), the first nozzle pipe (602) and the lengthened nozzle pipe (603) are also in communication with each other.

5. The multi-jet pesticide spraying agricultural UAV of claim 1, wherein: The upper and lower ends of one side of the rotating disc (904) are provided with protruding parts and are movably connected to the inner side of the connecting frame (902).

6. The multi-jet pesticide spraying agricultural UAV of claim 1, wherein: The middle inner wall of the connecting frame (902) is slidably connected to the surface of the limiting frame (905), and the surface of the limiting frame (905) is slidably connected to the inner side of the second spring (906).

7. The multi-jet pesticide spraying agricultural UAV of claim 1, wherein: The top of the inclined block (806) is designed in an inclined manner.

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