Pesticide storage device for spraying unmanned aerial vehicle

By introducing a sealing auxiliary mechanism of buffer plate and magnetic ring and a stirring rod filter design into the spraying drone's drug storage device, the problems of unstable magnetic attraction structure and drug blockage in magnetic field environment are solved, and the sealing and flowability are improved.

CN223816825UActive Publication Date: 2026-01-23李伟
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Patent Information

Application Number
CN202520445733.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-01-23
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Existing spraying drones' pesticide storage devices have poor magnetic attraction structure stability in magnetic field environments, affecting the normal opening and closing of the pesticide inlet and making the pesticide solution prone to clogging.

Method used

The sealing auxiliary mechanism adopts a combination of buffer plate and magnetic ring. The magnetic connection improves the tightness of the seal and the buffer block protects the medicine storage cylinder. Combined with the design of stirring rod and filter screen, it ensures the fluidity of medicine and filtration effect.

Benefits of technology

This improved the sealing performance of the drug storage device in a magnetic field environment, reduced drug blockage, and ensured the normal opening and closing of the drug inlet and the smooth flow of the drug.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a pesticide storage device for a spraying unmanned aerial vehicle, which comprises a pesticide storage barrel, a buffer block fixed at the bottom of the pesticide storage barrel, a buffer plate fixed at the bottom of the buffer block, and a sealing auxiliary mechanism arranged at the top of the buffer plate, and the sealing auxiliary mechanism comprises a connecting piece I, a sealing piece and a magnet ring, and the top of the connecting piece I is fixedly connected with the sealing piece; the bottom of the magnet ring is magnetically connected with the first connecting piece. A limiting piece is fixed to the outer ring face of the magnet ring. A sealing cover is fixed to the top of the limiting piece. One side of the sealing cover is fixedly connected with the medicine storage barrel. A sliding rod is fixed to the bottom of the sealing cover. The sliding rod is in sliding connection with the first connecting piece. The connecting tightness of the sealing piece, the first connecting piece and the limiting piece can be improved, so that the sealing effect on the bottom of the medicine inlet pipe is improved, and the interference of a magnetic field environment on the magnet ring is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of spraying drone technology, and in particular to a drug storage device for spraying drones. Background Technology

[0002] Spraying drones are unmanned aerial vehicles used in agriculture, forestry and other fields to spray pesticides, fertilizers and other substances. They are widely used in agricultural and forestry planting.

[0003] For example, Chinese patent CN218112994U discloses a pesticide storage device for pesticide spraying drones, including a housing, a pesticide inlet assembly mounted on the housing, and a floating cover mounted inside the housing. The pesticide inlet assembly includes a pesticide inlet on the pesticide tank. The floating cover includes a floating cover body located directly below the pesticide inlet and capable of sliding vertically between a first position where the pesticide inlet is closed and a second position where the pesticide inlet is open, a first magnetic attractor located on the outer edge of the pesticide inlet, and a second magnetic attractor located on the upper end of the floating cover body for attracting the first magnetic attractor. Although the above patent solves the problem of low pesticide replenishment efficiency through the floating cover, the first magnetic attractor, and the second magnetic attractor, the magnetic structure is easily affected by external forces and magnetic field interference during drone flight. It is quite sensitive to the magnetic field environment, and when used in areas with strong magnetic fields, it can easily affect the stability of the magnetic structure and the normal opening and closing of the pesticide inlet. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art and to propose a drug storage device for spraying drones.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pesticide storage device for spraying drones includes a pesticide storage cylinder. A buffer block is fixedly connected to the bottom of the pesticide storage cylinder, and a buffer plate is fixedly connected to the bottom of the buffer block. A sealing auxiliary mechanism is provided on the top of the buffer plate. The sealing auxiliary mechanism includes a connector, a sealing element, and a magnetic ring. The top of the connector is fixedly connected to the sealing element. A sealing ring overlaps the outer ring surface of the sealing element and is fixedly connected to the magnetic ring. The bottom of the magnetic ring is magnetically connected to the connector. A limiting element is fixedly connected to the outer ring surface of the magnetic ring. A sealing cap is fixedly connected to the top of the limiting element. One side of the sealing cap is fixedly connected to the pesticide storage cylinder. A sliding rod is fixedly connected to the bottom of the sealing cap and is slidably connected to the connector.

[0007] Preferably, a second connector is fixedly connected to one side of the first connector, a guide rod is inserted through the second connector, the second connector and the guide rod are slidably connected, and an auxiliary frame is fixedly connected to one end of the guide rod.

[0008] Preferably, a threaded rod is rotatably connected to one side of the auxiliary frame, and the threaded rod is threadedly connected to the second connecting piece. A second gear is fixedly connected to one end of the threaded rod, and the top of the second gear is rotatably connected to the sealing cover.

[0009] Preferably, one side of the second gear meshes with the first gear, the first gear is rotatably connected to the auxiliary frame, and the top of the first gear is fixedly connected to the output shaft of the second motor. The bottom of the second motor is fixedly connected to the sealing cover, and the second motor is electrically connected to a liquid level sensor, which is inserted through the sealing cover.

[0010] Preferably, a drug inlet tube is inserted through the inside of the sealing cap, and the bottom of the drug inlet tube overlaps with the limiting member.

[0011] Preferably, a filter screen is fixedly connected to the bottom of the inner cavity of the medicine storage cylinder, and a medicine discharge pipe is provided on one side of the filter screen, with one end of the medicine discharge pipe fixedly connected to the medicine storage cylinder.

[0012] Preferably, a motor is fixedly connected to the top of the sealing cover, and a stirring rod is fixedly connected to the output shaft of the motor, with the stirring rod rotatably connected to the sealing cover.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. The inner wall of the limiting component of this utility model is fixedly connected to the magnet ring, and the inner wall of the magnet ring is fixedly connected to the sealing ring. When the threaded rod drives the second connector and the first connector to move upward, the sealing component is inserted into the limiting component, the sealing ring is sleeved on the outside of the sealing component, and the bottom of the magnet ring is magnetically connected to the first connector. This can improve the tightness of the connection between the sealing component, the first connector and the limiting component, reduce the interference of the magnetic field environment on the magnet ring, and ensure the normal opening and closing of the bottom of the drug inlet tube.

[0015] 2. The buffer plate of this utility model is fixedly connected to the medicine storage cylinder through the buffer block, and the output shaft of motor one is fixedly connected to the stirring rod. When motor one drives the stirring rod to rotate, it accelerates the flow of medicine liquid inside the medicine storage cylinder, so that the medicine liquid passes through the filter screen to complete the filtration. The water after filtration can be smoothly discharged through the medicine discharge pipe, reducing the blockage when the medicine liquid is discharged. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a pesticide storage device for spraying drones;

[0017] Figure 2 This utility model provides a schematic diagram of the filter structure installation for a pesticide storage device used in spraying drones;

[0018] Figure 3 This utility model provides a schematic diagram of the sliding rod structure installation for a pesticide storage device used in spraying drones;

[0019] Figure 4 This utility model provides a schematic diagram of the meshing structure of gear one and gear two in a pesticide storage device for spraying drones;

[0020] Figure 5 An exploded view of the limiting component structure of a spraying drone's medicine storage device is provided for this utility model.

[0021] Legend: 1. Inlet pipe; 2. Motor 1; 3. Outlet pipe; 4. Buffer plate; 5. Storage cylinder; 6. Motor 2; 7. Liquid level sensor; 8. Stirring rod; 9. Filter screen; 10. Auxiliary frame; 11. Threaded rod; 12. Sliding rod; 13. Connector 1; 14. Guide rod; 15. Connector 2; 16. Gear 1; 17. Gear 2; 18. Seal; 19. Limiting component; 20. Magnet ring; 21. Sealing ring; 22. Buffer block; 23. Sealing cover. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: Refer to Figures 1-4 As shown: A pesticide storage device for spraying drones includes a pesticide storage cylinder 5. A buffer block 22 is fixedly connected to the bottom of the pesticide storage cylinder 5. A buffer plate 4 is fixedly connected to the bottom of the buffer block 22. A sealing auxiliary mechanism is provided on the top of the buffer plate 4. The sealing auxiliary mechanism includes a connector 13, a sealing element 18, and a magnetic ring 20. The top of the connector 13 is fixedly connected to the sealing element 18. A sealing ring 21 overlaps the outer ring surface of the sealing element 18. The outer ring surface of the sealing ring 21 is fixedly connected to the magnetic ring 20. The bottom of the magnetic ring 20 is magnetically connected to the connector 13. A limiting element 19 is fixedly connected to the outer ring surface of the magnetic ring 20. A sealing cover 23 is fixedly connected to the top of the limiting element 19. One side of the sealing cover 23 is fixedly connected to the pesticide storage cylinder 5. A sliding rod 12 is fixedly connected to the bottom of the sealing cover 23. The sliding rod 12 is slidably connected to the connector 13.

[0025] Connector 13 is fixedly connected to connector 215 on one side. Connector 215 has a guide rod 14 inserted through it. Connector 215 and guide rod 14 are slidably connected. One end of guide rod 14 is fixedly connected to auxiliary frame 10. A threaded rod 11 is rotatably connected to one side of auxiliary frame 10. Threaded rod 11 is threadedly connected to connector 215. Gear 217 is fixedly connected to one end of threaded rod 11. The top of gear 217 is rotatably connected to sealing cover 23. Gear 16 meshes with one side of gear 217. Gear 16 is rotatably connected to auxiliary frame 10. The top of gear 16 is fixedly connected to the output shaft of motor 26. The bottom of motor 26 is fixedly connected to sealing cover 23. Motor 26 is electrically connected to liquid level sensor 7, which is inserted through sealing cover 23.

[0026] The buffer block 22 connects the medicine storage cylinder 5 to the buffer plate 4. The buffer block 22 is made of elastic rubber, and a spring and telescopic rod are installed between the buffer plate 4 and the medicine storage cylinder 5 to provide buffer protection for the bottom of the medicine storage cylinder 5 and reduce collision damage to the bottom of the medicine storage cylinder 5. The connection between connector 13 and connector 2 15 enables the synchronous lifting and lowering of connector 13 and connector 2 15. The slide rod 12 guides the lifting and lowering of connector 13, and the guide rod 14 guides the lifting and lowering of connector 2 15, thereby improving the stability of the lifting and lowering of connector 13 and connector 2 15. The overlapping of the inner ring surface of the sealing ring 21 with the sealing element 18 improves the sealing effect on the top of the inner cavity of the medicine storage cylinder 5. The magnetic connection between the bottom of the magnetic ring 20 and connector 13 improves the tightness of the fit between the sealing element 18 and the sealing ring 21 and reduces the loosening of the sealing element 18 during use.

[0027] Meanwhile, the auxiliary frame 10 can be used to reinforce the threaded rod 11 and the guide rod 14. The motor 2 6 can drive the gear 16 to rotate stably on one side of the auxiliary frame 10. The meshing of the gear 16 and the gear 2 17 drives the gear 2 17 to rotate, thereby realizing the synchronous rotation of the gear 2 17 and the threaded rod 11, providing power for the lifting and lowering of the connector 2 15. The sealing cover 23 can be used to support the installation and use of the liquid level sensor 7. The liquid level sensor 7 can monitor the change in liquid level inside the medicine storage cylinder 5, thereby assisting the control terminal to drive the motor 2 6 to work.

[0028] Example 2: Figures 1-5 As shown, a medicine inlet tube 1 is inserted through the inside of the sealing cover 23. The bottom of the medicine inlet tube 1 overlaps with the limiting member 19. A filter screen 9 is fixedly connected to the bottom of the inner cavity of the medicine storage cylinder 5. A medicine discharge tube 3 is provided on one side of the filter screen 9. One end of the medicine discharge tube 3 is fixedly connected to the medicine storage cylinder 5. A motor 2 is fixedly connected to the top of the sealing cover 23. A stirring rod 8 is fixedly connected to the output shaft of the motor 2. The stirring rod 8 is rotatably connected to the sealing cover 23.

[0029] The sealing cap 23 can be used to support and reinforce the inlet tube 1, and the limiting member 19 can support the bottom of the inlet tube 1, which can limit the insertion depth of the inlet tube 1. The connection between the discharge tube 3 and the storage cylinder 5 facilitates the discharge of the medicine. The motor 2 can drive the stirring rod 8 to rotate inside the storage cylinder 5, thereby agitating the medicine and preventing sedimentation. The filter screen 9 can filter the medicine, thereby reducing the blockage of the discharge tube 3 by particles or impurities in the medicine.

[0030] The usage and working principle of this device are as follows: First, the liquid level sensor 7 detects the liquid level inside the medicine storage cylinder 5. When the liquid level is lower than the predetermined value, the liquid level sensor 7 sends a signal to the external control terminal. The control terminal drives the second motor 6 to work. The second motor 6 drives the threaded rod 11 to rotate, and the second connector 15 moves down along the guide rod 14. This drives the first connector 13 to move down synchronously with the second connector 15 until the top of the first connector 13 separates from the magnetic ring 20. The top of the sealing element 18 separates from the inlet pipe 1, the limiting element 19, and the sealing ring 21 in sequence. At this time, the medicine can enter the medicine storage cylinder 5 through the gap between the bottom of the inlet pipe 1 and the sealing element 18. After being filtered by the filter screen 9, it enters the storage cavity on the right side of the medicine storage cylinder 5. The first motor 2 drives the stirring rod 8 to rotate, which quickly stirs the medicine. The solenoid valve on the discharge pipe 3 is opened, and the stirred medicine can be discharged from the discharge pipe 3.

[0031] When the liquid level sensor 7 detects that the liquid level is higher than the predetermined value, the inlet tube 1 stops adding liquid, the motor 2 drives the threaded rod 11 to rotate in the opposite direction, the connector 2 15 and connector 13 move upward, and the top of the seal 18 is inserted into the limiting member 19. At this time, the top of connector 13 is magnetically attracted to the magnet ring 20, and the top of the seal 18 is inserted into the inner wall of the inlet tube 1 to seal the inlet tube 1. When the magnet ring 20 loses its magnetism, the seal 18 can still seal the bottom of the inlet tube 1.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pesticide storage device for spraying drones, comprising a pesticide storage cylinder (5), characterized in that: The bottom of the medicine storage cylinder (5) is fixedly connected to a buffer block (22), the bottom of the buffer block (22) is fixedly connected to a buffer plate (4), the top of the buffer plate (4) is provided with a sealing auxiliary mechanism, the sealing auxiliary mechanism includes a connector (13), a sealing element (18) and a magnetic ring (20), the top of the connector (13) is fixedly connected to the sealing element (18), the outer ring surface of the sealing element (18) is overlapped with a sealing ring (21), the outer ring surface of the sealing ring (21) is fixedly connected to the magnetic ring (20), the bottom of the magnetic ring (20) is magnetically connected to the connector (13), the outer ring surface of the magnetic ring (20) is fixedly connected to a limiting element (19), the top of the limiting element (19) is fixedly connected to a sealing cover (23), one side of the sealing cover (23) is fixedly connected to the medicine storage cylinder (5), the bottom of the sealing cover (23) is fixedly connected to a sliding rod (12), the sliding rod (12) is slidably connected to the connector (13).

2. The pesticide storage device for spraying drones according to claim 1, characterized in that: Connector 1 (13) is fixedly connected to connector 2 (15) on one side. Connector 2 (15) is internally inserted with guide rod (14). Connector 2 (15) and guide rod (14) are slidably connected. One end of guide rod (14) is fixedly connected with auxiliary frame (10).

3. A pesticide storage device for spraying drones according to claim 2, characterized in that: The auxiliary frame (10) is rotatably connected to a threaded rod (11) on one side. The threaded rod (11) is connected to the connecting piece two (15) by a thread. One end of the threaded rod (11) is fixedly connected to a gear two (17). The top of the gear two (17) is rotatably connected to the sealing cover (23).

4. A pesticide storage device for spraying drones according to claim 3, characterized in that: Gear 1 (16) meshes with one side of gear 2 (17). Gear 1 (16) is rotatably connected to auxiliary frame (10). The output shaft of motor 2 (6) is fixedly connected to the top of gear 1 (16). The bottom of motor 2 (6) is fixedly connected to sealing cover (23). Motor 2 (6) is electrically connected to liquid level sensor (7). Liquid level sensor (7) is inserted through sealing cover (23).

5. A pesticide storage device for spraying drones according to claim 1, characterized in that: The sealing cap (23) is internally inserted with a drug inlet tube (1), and the bottom of the drug inlet tube (1) overlaps with the limiting member (19).

6. A pesticide storage device for spraying drones according to claim 1, characterized in that: A filter screen (9) is fixedly connected to the bottom of the inner cavity of the medicine storage cylinder (5). A medicine discharge pipe (3) is provided on one side of the filter screen (9). One end of the medicine discharge pipe (3) is fixedly connected to the medicine storage cylinder (5).

7. A pesticide storage device for spraying drones according to any one of claims 1 to 6, characterized in that: The top of the sealing cover (23) is fixedly connected to a motor (2), and the output shaft of the motor (2) is fixedly connected to a stirring rod (8). The stirring rod (8) is rotatably connected to the sealing cover (23).

Citation Information

Patent Citations

  • Pesticide storage device for pesticide spraying unmanned aerial vehicle

    CN218112994U