Particle throwing structure of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of particle throwing of unmanned aerial vehicles, in particular to a particle throwing structure of an unmanned aerial vehicle, which comprises a support frame and a mounting ring which are fixedly connected, and a motor and a throwing disc are arranged in the mounting ring; the multiple stop blocks are elastically and slidably connected to the supporting frame in the thickness direction of the supporting frame; the fixing frame is annular and fixedly connected with the mounting ring or the supporting frame, and the fixing frame is located above the stop block; the flexible pipe is arranged between the fixing frame and the stop block; the suction assembly is used for controlling the protruding state of the flexible pipe; the two control assemblies are used for stopping the stopping block from descending; the structure is simple, the throwing direction can be flexibly and accurately controlled, the throwing angle can be finely adjusted, the practicability is greatly improved, and the waste phenomenon is reduced.

Description

A particle-dispensing structure for drones Technical Field

[0001] This utility model relates to the technical field of unmanned aerial vehicle (UAV) particle dispersal, and in particular to a particle dispersal structure for UAVs. Background Technology

[0002] In modern agricultural production, environmental governance, and many other fields, drone-based pellet spraying operations are playing an increasingly important role. Currently, most common drone pellet spraying structures use a drive motor to rotate a spinning disc at high speed. The working principle is that the pellets enter the spinning disc from above, and the protrusions set in the radial direction of the spinning disc cause the pellets to rotate together. Under the centrifugal force generated by the high-speed rotation of the spinning disc, the pellets are thrown out to achieve the spraying operation.

[0003] However, this traditional spraying structure has obvious drawbacks. First, in most cases, the spraying direction is 360° all-around, making it impossible to flexibly and precisely control the spraying angle individually according to actual operational needs. For example, in orchards, when pesticide granules need to be sprayed on fruit trees in a specific area, 360° spraying will lead to pesticide waste and may pollute surrounding non-target areas. Although some improved spraying structures can control the spraying direction, the adjustment of the spraying angle has a large range, which means that in actual operations, it is difficult to achieve fine adjustment of the spraying angle and cannot meet the diverse needs of different terrains and different target objects for the spraying angle. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a particle dispensing structure for drones. The structure is simple, the dispensing direction can be flexibly and accurately controlled, and the dispensing angle can be finely adjusted, which greatly improves practicality and reduces waste.

[0005] This utility model discloses a particle-dispensing structure for a drone, comprising a fixedly connected support frame and a mounting ring, wherein a motor and a dispensing disc are disposed within the mounting ring; and further comprising:

[0006] Multiple blocking blocks are elastically slidably connected to the support frame along the thickness direction of the support frame;

[0007] The fixing frame is ring-shaped and is fixedly connected to the mounting ring or support frame, and the fixing frame is located above the blocking block;

[0008] A flexible tube is installed between the fixed frame and the blocking block;

[0009] Suction assembly used to control the bulging state of the flexible tube;

[0010] There are two control components used to prevent the blocking blocks from descending.

[0011] As a preferred embodiment of this utility model, the suction assembly includes a container fixedly connected to the mounting ring and a suction mechanism communicating with the container, the suction mechanism being connected to a flexible tube.

[0012] As a preferred embodiment of this utility model, the control component includes:

[0013] The track is coaxially fixed to the support frame;

[0014] The slider slides along the track; a lifting device is provided on the slider.

[0015] As a preferred embodiment of this utility model, the control component further includes:

[0016] The gear ring is coaxially fixed on the support frame;

[0017] The power mechanism is fixed on the slider; the output end of the power mechanism is connected to a gear that meshes with the gear ring.

[0018] As a preferred embodiment of this utility model, the lifting component is any one of a pneumatic cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0019] As a preferred embodiment of this utility model, the inner and outer sides of the fixing frame both extend towards the blocking block, and the flexible tube is located within the two extensions.

[0020] As a preferred embodiment of this utility model, the distance between two adjacent blocking blocks is smaller than the particle diameter.

[0021] As a preferred embodiment of this utility model, the blocking block includes a horizontal part and a vertical part, the vertical part being used to block particles;

[0022] The support frame is fixed with a guide rod, and the horizontal part slides on the guide rod;

[0023] It also includes an elastic element, with its two ends contacting the support frame and the horizontal part, respectively.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: When precise operation is required, the control component and the suction component work together to quickly change the position of the blocking block and block the particle scattering in a specific direction. This structure avoids the material waste and pollution to non-target areas caused by traditional 360° scattering. At the same time, compared with some existing adjustable structures, its scattering angle adjustment is more precise and can adapt to the diverse needs of complex terrains such as orchards and mountains and different target objects, greatly improving the accuracy and practicality of drone particle scattering operations. Attached Figure Description

[0025] Figure 1 is a structural schematic diagram of this utility model;

[0026] Figure 2 is a partial enlarged view of part A in Figure 1;

[0027] Figure 3 is a top-view perspective view of Figure 1;

[0028] Figure 4 is a structural schematic diagram of a single blocking block, support frame, fixing frame, extension, elastic element and control assembly;

[0029] Figure 5 is a magnified view of part B in Figure 4;

[0030] The following components are labeled in the attached diagram: 1. Support frame; 2. Mounting ring; 3. Motor; 4. Swing disc; 5. Blocking block; 6. Fixing frame; 7. Flexible tube; 8. Suction assembly; 9. Control assembly; 91. Track; 92. Slider; 93. Lifting component; 94. Gear ring; 95. Power mechanism; 96. Gear; 10. Extension; 11. Guide rod; 12. Elastic element. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0034] Example:

[0035] Referring to Figures 1-5, this embodiment provides a pellet dispensing structure for a drone, including a fixedly connected support frame 1 and a mounting ring 2. A motor 3 and a dispensing disc 4 are disposed within the mounting ring 2, and the top of the mounting ring 2 is connected to an external feeding system; it also includes:

[0036] Multiple blocking blocks 5 are arranged in a circular array around the support frame 1. Along the thickness direction of the support frame 1, the blocking blocks 5 are elastically slidably connected to the support frame 1. More specifically, the blocking blocks 5 are made of a material with high hardness, such as metal or glass, to prevent high-speed moving particles from damaging the blocking blocks 5. Under the action of elasticity, the blocking blocks 5 always maintain an upward movement trend.

[0037] The fixing frame 6 is ring-shaped and is fixedly connected to the mounting ring 2 or the support frame 1. The fixing frame 6 is located above the blocking block 5. The fixing frame 6 is made of a material with high hardness and can be connected to either the mounting ring 2 or the support frame 1.

[0038] The flexible tube 7 is located between the fixed frame 6 and the blocking block 5. The flexible tube 7 is made of silicone or plastic and is flat when its interior is evacuated and its volume increases when its interior is filled with fluid.

[0039] The suction component 8 is used to control the bulging state of the flexible tube 7;

[0040] There are two control components 9, which are used to block the descending of the blocking block 5, and the control components 9 are located on both sides of the suction component 8.

[0041] The specific working process of this device is as follows: In the normal spraying state, due to the elastic force, the blocking block 5 is at its highest position and does not overlap with the particles thrown out by the spinning disc 4. At this time, the flexible tube 7 is in a vacuum state. The two ends of the flexible tube 7 are in contact with the top of the blocking block 5 and the bottom of the fixing frame 6, respectively. Under the action of external atmospheric pressure, the flexible tube 7 is flattened. The motor 3 drives the spinning disc 4 to rotate at high speed. The particles enter the spinning disc 4 from above. Under the action of the radial protrusions and centrifugal force of the spinning disc 4, 360° all-round spraying is achieved. When it is necessary to adjust the spraying angle, the blocking block at the appropriate position is first selected through the two control components 9. 5. Press it down and prevent it from falling, so that the fluid in the flexible tube 7 will flow to the blocking block 5 at most. Then, the suction component 8 is activated, and the suction component 8 fills the flexible tube 7 with fluid, causing the flexible tube 7 to expand. Since the fixing frame 6 restricts the upward deformation of the flexible tube 7, the flexible tube 7 can only deform downward, thereby pushing the blocking block 5 between the two control components 9 to move down. The downward-moving blocking block 5 plays the role of blocking the particles. The blocked particles cannot be thrown out in this direction, thereby realizing the adjustment of the throwing angle. The adjustment accuracy can be controlled by the specific number of blocking blocks 5. The more blocking blocks 5 there are, the more precise the control.

[0042] In some embodiments of this utility model, referring to Figures 1 and 3, the suction assembly 8 includes a container fixedly connected to the mounting ring 2 and a suction mechanism communicating with the container. The suction mechanism is connected to the flexible tube 7. More specifically, the container contains liquid or gas, and the suction mechanism is an air pump or a liquid pump. The arrangement of the suction mechanism is not specifically described in this device. Any device that can perform a suction function can be implemented.

[0043] The specific working process of the suction component 8 is as follows: When it is necessary to adjust the spraying angle, the suction mechanism starts to work. The suction mechanism delivers fluid into the flexible tube 7, causing the flexible tube 7 to expand. The expanded flexible tube 7 drives the blocking block 5 between the two control components 9 to descend. Since the volume of the flexible tube 7 corresponding to the blocking block 5 in other positions remains unchanged, it will not descend. When it is necessary to return to 360° operation, the suction mechanism is operated to draw the fluid in the flexible tube 7 into the container, causing the flexible tube 7 to be flattened. The blocking block 5 returns to its initial position under the action of elasticity. The flexible tube 7 is held in the middle by the blocking block 5 and the fixing frame 6.

[0044] In some embodiments of this utility model, referring to Figures 1, 2, 4, and 5, the control component 9 includes:

[0045] The track 91 is coaxially fixed to the support frame 1. The track 91 is made of stainless steel or hard plastic and is fixed to the support frame 1 coaxially by welding or bolting to ensure the stability and accuracy of the track 91.

[0046] The slider 92 slides along the track 91. The slider 92 is made of lightweight and wear-resistant engineering plastic and has an internal groove designed to fit the track 91, allowing it to slide smoothly on the track 91. A lifting component 93 is provided on the slider 92. The lifting component 93 can be manually adjusted, such as by a bolt, or automatically adjusted, such as by a cylinder. When the spraying angle needs to be adjusted, the operator manually pushes the slider 92 along the track 91 according to the actual needs, moving the slider 92 to a position below the blocking block 5 that needs to be blocked. Then, if the lifting component 93 is a bolt (not shown), its top is gradually raised by rotating the bolt, blocking the blocking block 5 and preventing it from moving downwards. If it is an automatic component, such as a small electric push rod, a command is sent via a remote control or drone control system to control the electric push rod to extend and block the blocking block 5, preventing it from moving downwards. In this embodiment, the lifting component 93 is an automatic component.

[0047] In some embodiments of this utility model, referring to FIG2, the control component 9 further includes:

[0048] Gear ring 94 is coaxially fixed on support frame 1;

[0049] The power mechanism 95 is fixed on the slider 92. The power mechanism 95 can be a small DC motor 3, which is fixed on the slider 92 through the motor 3 seat. The output end of the power mechanism 95 is connected to a gear 96 that meshes with the gear ring 94.

[0050] When the drone is operating at high altitude and the operator cannot manually adjust the position of slider 92, a command is sent to the power mechanism 95 via the remote control or the drone control system. The DC motor 3 in the power mechanism 95 starts, driving the gear 96 on the output shaft to rotate. Since the gear 96 meshes with the gear ring 94, the rotation of the gear 96 will push the slider 92 to move circumferentially on the track 91, automatically adjusting it to a suitable position below the blocking block 5. Then, the lifting component 93 holds the blocking block 5 in place. The power mechanism 95 allows the operator to remotely control the position of slider 92 during drone flight without manual operation, greatly improving work efficiency and enhancing the adaptability of the drone particle dispersing structure in complex working environments. In conjunction with the overall structure, it further improves the convenience and accuracy of dispersing angle adjustment.

[0051] In some embodiments of this utility model, referring to Figures 2 and 4, the lifting member 93 is any one of a cylinder, a hydraulic cylinder, or an electric telescopic rod. The cylinder, hydraulic cylinder, or electric telescopic rod as the lifting member 93 has the characteristics of rapid action and stable thrust. It can quickly and accurately push the blocking block 5 according to the command. In coordination with other parts of the control component 9, it can achieve precise control of the position of the blocking block 5. This precise control can ensure that the blocking block 5 stably blocks the particles during the adjustment of the throwing angle, thereby accurately adjusting the throwing angle, improving the accuracy and reliability of the throwing operation, and meeting the high precision requirements of throwing angle adjustment in different operation scenarios.

[0052] To prevent the lifting member 93 from contacting the blocking block 5 during its movement, the lifting member 93 is in a retracted state during its movement. After reaching the designated position, the lifting member 93 extends and presses against the blocking block 5.

[0053] In some embodiments of this utility model, referring to Figures 1 and 5, the inner and outer sides of the fixing frame 6 are both extended into the direction of the blocking block 5, and the flexible tube 7 is located within the two extensions 10. When the suction assembly 8 fills the flexible tube 7 with fluid to make it expand, due to the restriction of the extensions 10 on the inner and outer sides of the fixing frame 6, the flexible tube 7 can only deform in the vertical direction, that is, push the blocking block 5 downward. The extensions 10 effectively constrain the expansion direction of the flexible tube 7, ensuring that its force is concentrated on pushing the blocking block 5 downward, and avoiding energy dispersion and structural instability caused by the expansion of the flexible tube 7 inward or outward.

[0054] In some embodiments of this utility model, the distance between two adjacent blocking blocks 5 is less than the particle diameter. During the scattering operation, when the particles are thrown out by the throwing disc 4, because the distance between the adjacent blocking blocks 5 is less than the particle diameter, the particles cannot pass through the gaps between the blocking blocks 5. They can only be blocked by the blocking blocks 5 or thrown out in the direction that has not been blocked, which effectively prevents the particles from leaking out of the gaps between the blocking blocks 5 and prevents the waste of materials.

[0055] In some embodiments of this utility model, referring to FIG5, the blocking block 5 includes a horizontal part and a vertical part. The vertical part is used to block particles, and the top of the horizontal part is connected to the top of the vertical part. It is arranged along the radial direction of the support frame 1.

[0056] The support frame 1 is fixed with a guide rod 11, and the horizontal part slides vertically on the guide rod 11. More specifically, the cross section of the guide rod 11 is not circular, which serves to prevent the blocking block 5 from rotating.

[0057] It also includes an elastic element 12, with its two ends contacting the support frame 1 and the horizontal part, respectively. In this embodiment, the elastic element 12 is a spring, but it can also be a sheet or the like. The cooperation between the horizontal part and the guide rod 11 ensures the smoothness and accuracy of the movement of the blocking block 5. The setting of the elastic element 12 enables the blocking block 5 to automatically reset, which is convenient for the next adjustment. The vertical part effectively blocks the particles.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A particle-dispensing structure for a drone, comprising a fixedly connected support frame (1) and a mounting ring (2), wherein a motor (3) and a dispensing disc (4) are disposed within the mounting ring (2); characterized in that, Also includes: Multiple blocking blocks (5) are elastically slidably connected to the support frame (1) along the thickness direction of the support frame (1); The fixed frame (6) is ring-shaped and is fixedly connected to the mounting ring (2) or the support frame (1), and the fixed frame (6) is located above the blocking block (5); the flexible tube (7) is disposed between the fixed frame (6) and the blocking block (5); the suction component (8) is used to control the raised state of the flexible tube (7); the control component (9) consists of two components, which are used to resist the descent of the blocking block (5).

2. The particle dispersing structure of the UAV as described in claim 1, characterized in that, The suction assembly (8) includes a container fixedly connected to the mounting ring (2) and a suction mechanism communicating with the container, the suction mechanism being connected with the flexible tube (7).

3. The particle dispersing structure of the UAV as described in claim 1, characterized in that, The control component (9) includes: a track (91) coaxially fixed on the support frame (1); a slider (92) sliding along the track (91); and a lifting component (93) provided on the slider (92).

4. The particle dispersing structure of the UAV as described in claim 3, characterized in that, The control component (9) further includes: a gear ring (94) coaxially fixed on the support frame (1); a power mechanism (95) fixed on the slider (92); and a gear (96) that meshes with the gear ring (94) is connected to the output end of the power mechanism (95).

5. The particle dispersing structure of the UAV as described in claim 3, characterized in that, The lifting component (93) is any one of a cylinder, a hydraulic cylinder, or an electric telescopic rod.

6. The particle dispersing structure of the UAV as described in claim 1, characterized in that, The inner and outer sides of the fixing frame (6) both form extensions (10) towards the blocking block (5), and the flexible tube (7) is located within the two extensions (10).

7. The particle dispersing structure of the UAV as described in claim 1, characterized in that, The distance between two adjacent blocking blocks (5) is less than the particle diameter.

8. The particle dispersing structure of the UAV as described in claim 1, characterized in that, The blocking block (5) includes a horizontal part and a vertical part, the vertical part being used to block particles; the support frame (1) is fixed with a guide rod (11), the horizontal part sliding on the guide rod (11); it also includes an elastic element (12), the two ends of the elastic element (12) contacting the support frame (1) and the horizontal part respectively.

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