A unmanned aerial vehicle spraying device for rice planting
By introducing a landing buffer mechanism into the drone spraying device, the impact force of landing is buffered by buffer rods, buffer blocks and springs, which solves the problem of easy damage to the spraying mechanism and improves the service life and disassembly convenience of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HANFENG IND CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-24
AI Technical Summary
Existing drone spraying devices lack cushioning at the bottom of the spraying mechanism during landing, making the device prone to damage and the support frame easy to break, thus affecting its service life.
A liquid storage tank is installed at the lower end of the drone body. The lower end of the liquid storage tank is connected to a buckle frame. A landing buffer mechanism is set at the lower end of the buckle frame, including a mounting frame, a slide rail, a buffer block, a buffer rod, and a buffer spring. The damper and the buffer spring buffer the landing impact force.
It effectively buffers the impact of falling, reduces the probability of device damage, extends service life, and facilitates disassembly and storage.
Smart Images
Figure CN224546343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice planting technology, and in particular to a drone spraying device for rice planting. Background Technology
[0002] In the process of rice cultivation, farmers often encounter tasks such as fertilization, weeding, and pesticide application. Pesticide application is a means of protecting crops by spraying pesticides to kill insects, fungi, and weeds. When spraying pesticides, drones equipped with spraying devices are usually used.
[0003] A search revealed that Chinese Patent Publication No. CN211211128U discloses a pesticide spraying device for rice. The device includes a drone body with legs fixed to its bottom. A pesticide tank is fixedly connected to the bottom of the drone body via a boom, and a spray pipe is fixed to the bottom of the pesticide tank. A piston plate is slidably connected inside the pesticide tank, and a power unit is fixed to the top of the outer side of the tank, with the power unit and piston plate connected in a transmission manner. An inlet mechanism and an outlet mechanism are provided at the bottom of the pesticide tank, with the outlet mechanism communicating with the spray pipe. This device enables the filling and spraying of pesticide from the tank, saving time and effort. The absence of air in the tank prevents pesticide fluctuations, reducing the inertial force of the tank on the drone body, thereby improving the drone's maneuverability and controllability, and increasing spraying efficiency. The inlet and outlet mechanisms mix the pesticide during filling and spraying, ensuring uniform mixing of the pesticide components and improving efficacy.
[0004] However, in the aforementioned technology, the spraying mechanism is installed at the bottom of the drone, but the lower end of the spraying mechanism is equipped with a landing aid mechanism, which is usually a support frame that contacts the ground. This means that when the drone lands after completing the spraying work, the bottom of the spraying mechanism does not receive timely cushioning when it touches the ground, making the device prone to damage due to impact during landing. At the same time, the support frame is also more likely to break, affecting the service life of the device. A solution is proposed to solve the problems mentioned in the background technology. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a drone spraying device for rice planting. The spraying mechanism is installed at the bottom of the drone, but the lower end of the spraying mechanism is equipped with an auxiliary landing mechanism, which is usually a support frame that contacts the ground. As a result, when the drone lands after completing the spraying work, the bottom of the spraying mechanism does not receive timely cushioning when it contacts the ground. This makes the device prone to damage due to impact during landing, and the support frame is also more likely to break, affecting the service life of the device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: it includes a drone body, a liquid storage tank is fixedly connected to the lower end of the drone body, a buckle frame is fixedly connected to the lower end of the liquid storage tank, a spraying mechanism is fixedly connected to both sides of the liquid storage tank, and a landing buffer mechanism is provided at the lower end of the buckle frame.
[0007] As a further description of the above technical solution: the base plate can undergo a certain displacement due to the impact force after contacting the ground. At this time, the damper will be compressed under force. At the same time, the base plate can also push the buffer rod above to move, so that the end of the buffer rod can push the buffer block above to slide on the slide rail frame. After sliding, it compresses the buffer spring fixed on its side. The buffer spring can buffer the impact force generated by this landing through deformation.
[0008] Preferably, the landing buffer mechanism includes a mounting frame, the upper end of which is engaged with the middle of the buckle frame, and slide rails are fixedly connected to both sides of the lower end of the mounting frame. Buffer blocks are slidably connected to both sides of the two slide rails, and buffer rods are rotatably connected to the lower ends of the two buffer blocks.
[0009] As a further description of the above technical solution: the mounting bracket can be fixed to the buckle bracket to fix the landing buffer mechanism under the device.
[0010] Preferably, each of the two buckle frames has a base plate at its lower end, one end of each of the four buffer rods is rotatably connected to the two sides of the upper end of the two base plates, and buffer springs are fixedly connected to the two sides of one side of each of the four buffer blocks, and one end of each of the eight buffer springs is fixedly connected to the middle of the two sides of the slide rail frame.
[0011] As a further description of the above technical solution: the base plate can be used to directly contact the ground, and the impact force generated during contact is buffered by a buffer spring.
[0012] Preferably, a fixing rod is fixedly connected to the middle of the lower end of each of the two slide rail frames, and a damper is fixedly connected to the lower end of each of the two fixing rods. The lower ends of the two dampers are respectively fixedly connected to the middle of the upper end of the two base plates.
[0013] As a further description of the above technical solution: the fixing rod can be used to install the damper below the slide rail frame.
[0014] Preferably, locking slots are provided on both sides of the buckle frame, and locking frames are slidably connected to both sides of the lower end of the mounting frame.
[0015] As a further description of the above technical solution: the locking groove can lock the mounting bracket and the buckle bracket after the locking rod is inserted.
[0016] Preferably, locking rods are fixedly connected to both sides of each of the two locking frames, and the outer surfaces of the four locking rods respectively engage with the interiors of the four locking grooves.
[0017] As a further description of the above technical solution: the locking rod can connect and lock the mounting bracket and the buckle bracket after being inserted into the locking slot, and can be unlocked by reversing the position.
[0018] Preferably, a slide rod is fixedly connected to one side of the mounting bracket, and one end of each of the two locking brackets is slidably connected to the outer surface of the slide rod.
[0019] As a further description of the above technical solution: one end of the locking frame can slide on the slide rail, making the locking frame more stable when moving.
[0020] Preferably, a bidirectional lead screw is rotatably connected to the other side of the mounting bracket, and the other ends of the two locking brackets are respectively threaded to the outer surface of the bidirectional lead screw, with a knob fixedly connected to one end of the bidirectional lead screw.
[0021] As a further description of the above technical solution: rotating the knob can drive the bidirectional lead screw to rotate, thereby controlling the movement of the locking frame.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] In this invention, the bottom support components of the device can be effectively buffered during landing operations, which greatly reduces the adverse effects of landing impact on the device, and also reduces the probability of damage to the bottom support mechanism of the device, thereby increasing the service life of the device. Attached Figure Description
[0024] Figure 1 This is a perspective view of a drone spraying device for rice cultivation proposed in this utility model.
[0025] Figure 2 This is a three-dimensional structural diagram of the mounting frame and base plate of a drone spraying device for rice planting proposed in this utility model.
[0026] Figure 3 This is a top-view three-dimensional structural diagram of the mounting frame part in a spraying device for rice planting proposed in this utility model;
[0027] Figure 4 This is a three-dimensional structural diagram of the drone and liquid storage tank in a drone spraying device for rice planting proposed in this utility model.
[0028] Legend:
[0029] 1. UAV body; 2. Liquid tank; 3. Spraying mechanism; 4. Buckle frame; 5. Two-way lead screw; 6. Knob; 7. Fixing rod; 8. Damper; 10. Buffer rod; 11. Base plate; 12. Locking frame; 13. Mounting frame; 14. Slide rail frame; 15. Buffer block; 16. Buffer spring; 17. Locking rod; 18. Slide rod; 19. Locking groove. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figures 1 to 4 As shown, one embodiment of this utility model includes a drone body 1. The drone body 1 has a liquid storage tank 2 fixedly connected to its lower end, a latching frame 4 fixedly connected to its lower end, and spraying mechanisms 3 fixedly connected to both sides of the liquid storage tank 2. A landing buffer mechanism is provided at the lower end of the latching frame 4, including a mounting frame 13. The upper end of the mounting frame 13 engages with the middle of the latching frame 4. Slide rails 14 are fixedly connected to both sides of the lower end of the mounting frame 13, and buffer blocks 15 are slidably connected to both sides of the two slide rails 14. The lower ends of each of the four buffer rods 10 are rotatably connected to a buffer rod 10. The lower ends of the two buckle brackets 4 are each provided with a base plate 11. One end of each of the four buffer rods 10 is rotatably connected to the two sides of the upper end of the two base plates 11. The two sides of each of the four buffer blocks 15 are fixedly connected to a buffer spring 16. One end of each of the eight buffer springs 16 is fixedly connected to the middle of the two sides of the slide rail brackets 14. The middle of the lower end of each of the two slide rail brackets 14 is fixedly connected to a fixing rod 7. The lower ends of each of the two fixing rods 7 are fixedly connected to a damper 8. The lower ends of each of the two dampers 8 are fixedly connected to the middle of the upper end of the two base plates 11.
[0032] In this embodiment, when the device completes the pesticide spraying and descends, the base plate 11 at the lower end of its mounting frame 13 can be displaced due to the impact force after contacting the ground. At this time, the damper 8 will be compressed under force, and the base plate 11 can also push the upper buffer rod 10 to move, so that the end of the buffer rod 10 can push the upper buffer block 15 to slide on the slide rail frame 14, and after sliding, it compresses the buffer spring 16 fixed on its side. The buffer spring 16 can buffer the impact force generated by this descent through deformation. In this way, the support components at the bottom of the device can be effectively buffered when the device is descending, which greatly reduces the adverse effects of the descent impact on the device, and also reduces the probability of damage to the bottom support mechanism of the device, thus improving the service life of the device.
[0033] Example 2, as Figures 1 to 4 As shown, locking slots 19 are provided on both sides of the buckle bracket 4. Locking brackets 12 are slidably connected to both sides of the lower end of the mounting bracket 13. Locking rods 17 are fixedly connected to both sides of one side of each of the two locking brackets 12. The outer surfaces of the four locking rods 17 are respectively engaged with the four interiors with locking slots 19. A sliding rod 18 is fixedly connected to one side of the mounting bracket 13. One end of each of the two locking brackets 12 is slidably connected to the outer surface of the sliding rod 18. A two-way screw 5 is rotatably connected to the other side of the mounting bracket 13. The other ends of the two locking brackets 12 are respectively threaded to the outer surface of the two-way screw 5. A knob 6 is fixedly connected to one end of the two-way screw 5.
[0034] In this embodiment, when the device needs to be stored after use, the knob 6 can be turned to rotate the bidirectional lead screw 5, thereby causing the locking frame 12, which is threaded to it, to slide under the mounting frame 13. The sliding locking frame 12 can move the locking rod 17 fixed on the side, so that the end of the locking rod 17 can be pulled out from the locking groove 19 opened on the buckle frame 4. At this time, the drone body 1 can be lifted upward to separate the mounting frame 13 at its bottom from the buckle frame 4. This allows for quick and efficient disassembly of the device after use, ensuring disassembly efficiency while making the device more convenient to store and carry, and easier to use.
[0035] Working Principle: When the device is in use, its main body 1 can drive the liquid storage tank 2 to fly, and spray pesticides through the spraying mechanisms 3 on both sides of the liquid storage tank 2. When the device completes the pesticide spraying and lands, the base plate 11 at the lower end of its mounting frame 13 can be displaced due to the impact force after contacting the ground. At this time, the damper 8 will be compressed by the force, and the base plate 11 can also push the upper buffer rod 10 to move, so that the end of the buffer rod 10 can push the upper buffer block 15 to slide on the slide rail frame 14, and after sliding, it compresses the buffer spring 16 fixed on its side. The buffer spring 16 can buffer the impact force generated by this landing through deformation. In this way, the support components at the bottom of the device can be effectively buffered when landing, which greatly reduces the impact force. The impact of landing on the device is reduced, but the probability of damage to the bottom support mechanism is also reduced, thus increasing the service life of the device. When the device needs to be stored after use, the knob 6 can be turned to rotate the bidirectional lead screw 5, thereby causing the locking frame 12, which is threaded to it, to slide under the mounting frame 13. The sliding locking frame 12 can move the side-fixed locking rod 17, so that the end of the locking rod 17 can be pulled out from the locking groove 19 opened on the buckle frame 4. At this time, the drone body 1 can be lifted upward to separate the mounting frame 13 and the buckle frame 4 at the bottom. This allows for quick and efficient disassembly when storing the device after use, ensuring disassembly efficiency and making the device more convenient to store and carry, and easier to use.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drone spraying device for rice cultivation, comprising a drone body (1), characterized in that: The lower end of the main body (1) of the drone is fixedly connected to a liquid storage tank (2), the lower end of the liquid storage tank (2) is fixedly connected to a buckle frame (4), both sides of the liquid storage tank (2) are fixedly connected to a spraying mechanism (3), and the lower end of the buckle frame (4) is provided with a landing buffer mechanism.
2. The unmanned aerial vehicle (UAV) spraying device for rice cultivation according to claim 1, characterized in that: The landing buffer mechanism includes a mounting frame (13), the upper end of which is engaged with the middle of the buckle frame (4), and slide rails (14) are fixedly connected to both sides of the lower end of the mounting frame (13). Buffer blocks (15) are slidably connected to both sides of the two slide rails (14), and buffer rods (10) are rotatably connected to the lower ends of the two buffer blocks (15).
3. The unmanned aerial vehicle (UAV) spraying device for rice planting according to claim 2, characterized in that: The lower ends of the two buckle frames (4) are provided with base plates (11), one end of the four buffer rods (10) is rotatably connected to the two sides of the upper end of the two base plates (11), and the two sides of one side of the four buffer blocks (15) are fixedly connected with buffer springs (16), and one end of the eight buffer springs (16) is fixedly connected to the middle of the two sides of the slide rail frame (14).
4. The unmanned aerial vehicle (UAV) spraying device for rice cultivation according to claim 3, characterized in that: A fixing rod (7) is fixedly connected to the middle of the lower end of each of the two slide rail frames (14), and a damper (8) is fixedly connected to the lower end of each of the two fixing rods (7). The lower ends of the two dampers (8) are respectively fixedly connected to the middle of the upper end of the two base plates (11).
5. The unmanned aerial vehicle (UAV) spraying device for rice planting according to claim 2, characterized in that: The buckle bracket (4) has locking slots (19) on both sides, and the mounting bracket (13) has locking brackets (12) slidably connected to both sides of its lower end.
6. The unmanned aerial vehicle (UAV) spraying device for rice planting according to claim 5, characterized in that: Locking rods (17) are fixedly connected to both sides of each of the two locking frames (12), and the outer surfaces of the four locking rods (17) are respectively engaged with the interior of the four locking grooves (19).
7. The unmanned aerial vehicle (UAV) spraying device for rice planting according to claim 6, characterized in that: A slide rod (18) is fixedly connected to one side of the mounting bracket (13), and one end of each of the two locking brackets (12) is slidably connected to the outer surface of the slide rod (18).
8. The unmanned aerial vehicle (UAV) spraying device for rice planting according to claim 7, characterized in that: The mounting bracket (13) is rotatably connected to a bidirectional lead screw (5) on the other side. The other ends of the two locking brackets (12) are respectively threaded to the outer surface of the bidirectional lead screw (5). A knob (6) is fixedly connected to one end of the bidirectional lead screw (5).