A collection mechanism for drones to collect plant components

Abstract

The present invention discloses a collection mechanism for a drone to collect plant components, which relates to the technical field of plant collection. It includes the body of the drone. An identification unit and a collection unit are arranged on the body. The collection unit collects the components of the target plant based on the identification signal of the identification unit. It further includes an occlusion mechanism. The occlusion mechanism includes a base and a plurality of first support plates arranged in sequence in the circumferential direction of the base. Each first support plate is swingably connected to the base. A driving member for driving the plurality of first support plates to swing synchronously is also provided on the base. The driving member drives the plurality of first support plates to unfold based on the identification signal of the identification unit to block the airflow flowing towards the target plant.

Description

Technical Field

[0001] The present invention relates to the technical field related to plant collection, and specifically to a collection mechanism for an unmanned aerial vehicle (UAV) for collecting plant components. Background Art

[0002] As is well known, the collection of plant components refers to the process of collecting plant samples from the natural environment, which is usually used in multiple fields such as scientific research, collection of medicinal plants, horticulture, and ecological monitoring. For the collection of plant components, it can be the roots, stems, leaves, flowers, and fruits of the target plant. After clarifying the collection purpose, the appropriate part of the target plant is selected for collection.

[0003] For example, in the patent with the publication number CN115777337A, the publication date of March 14, 2023, and the name "A Forestry Germplasm Resource Picking Device Based on an Unmanned Aerial Vehicle", it includes: a mounting plate, a first support frame, and a fixing frame. The mounting plate is installed on the UAV through bolts; a angle adjustment mechanism is arranged below the mounting plate, which includes a connecting plate, a fixing frame, an adjustment wheel, and an adjustment plate; a hydraulic rod is installed on the right side of the first support frame, and a cutting mechanism is arranged at the output end of the hydraulic rod, which includes a push rod, a first connecting rod, a clamping plate, and a cutting knife; the fixing frame is fixed below the first support frame. This forestry germplasm resource picking device based on an unmanned aerial vehicle can adjust the angle of the cutting mechanism according to the position of the germplasm resource, can ensure the picking effect, avoid the influence of the germplasm resource position on picking, can effectively cut the germplasm resource, avoid the germplasm resource remaining on the plant, is convenient for replacing the blade, ensures the cutting effect, and can guide the germplasm resource to be concentrated for convenient collection.

[0004] The deficiencies of the prior art are that when using a UAV in cooperation with a collection mechanism to collect target plant components, there are two ways to arrange the collection mechanism: one is to arrange it directly below the UAV body. During the collection operation, it is in a straight up and down state. In this arrangement, for some plants with soft branches, under the airflow driven by the UAV, they will sway or even fall, resulting in the collection mechanism carried by the UAV being unable to collect the components of the target plant; the other is to arrange it at a position deviating from directly below the UAV body. However, if the overall center of gravity of the UAV and the collection mechanism shifts, the UAV needs to increase power to adjust its flight attitude to ensure normal flight, which will increase energy consumption. Especially when collecting plant components in remote areas where it is difficult for humans to reach, there may be a situation where it cannot fly back. If the collected target plant components are relatively heavy, it may even cause the UAV to crash. Summary of the Invention

[0005] The purpose of the present invention is to provide a collection mechanism for an unmanned aerial vehicle for collecting plant components to solve the technical problems in the related art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A collection mechanism for a drone for collecting plant components, comprising a drone body, on which an identification unit and a collection unit are arranged, the collection unit collects components of a target plant based on an identification signal of the identification unit, and a shielding mechanism, the shielding mechanism comprising a base and a plurality of first support plates arranged in sequence in a circumferential direction of the base, each first support plate being swingably connected to the base, a driving member for driving the plurality of first support plates to swing synchronously is further provided on the base, the driving member drives the plurality of first support plates to unfold based on the identification signal of the identification unit to shield the airflow flowing toward the target plant.

[0008] As mentioned above, an elastic shielding cloth is commonly sleeved on the outer walls of the first support plates. The shielding cloth is elastically deformed based on the swinging action of the first support plates. Based on the elastic force of the shielding cloth, the first support plates tend to be retracted.

[0009] As mentioned above, each of the first supporting plates is in an arc shape.

[0010] As mentioned above, each of the first support plates is equipped with a collecting cutter, and when the first support plates are retracted based on the driving action of the driving member, the collecting cutters jointly cut the target plant components.

[0011] As mentioned above, a second support plate is provided between two adjacent first support plates, and the second support plate provides auxiliary support for the shielding cloth between the two adjacent first support plates.

[0012] As mentioned above, the driving member includes a driving source arranged on a base, a screw rod is installed at the power output end of the driving source, a screw block is threaded on the screw rod, a first support rod is fixedly connected to each first support plate, and a second support rod is hinged between the screw block and each first support rod.

[0013] The above also includes a packaging mechanism, which packages the target plants after the target plant components are cut by multiple collection cutters.

[0014] As mentioned above, the packaging mechanism includes a packaging bag arranged at the end of the screw rod away from the driving source, the open end of the packaging bag is provided with a first elastic part, and each second support plate is provided with a first limiting part; before the target plant components are cut, the open end of the packaging bag is in an open state under the joint action of multiple first limiting parts and the first elastic part; after the target plant components are cut, the multiple first limiting parts are separated from the first elastic part, and under the action of the rebound force of the first elastic part, the open end of the packaging bag is tightened to package the cut target plant components.

[0015] As described above, a second elastic part is further arranged on the packaging bag. The part of the packaging bag between the first elastic part and the second elastic part is used for packaging the target plant component. A second limiting part is further arranged on each second support plate. Before the target plant component is cut, the packaging bag is in an expanded state under the combined action of the plurality of second limiting parts and the second elastic part. After the target plant component is cut, all the second limiting parts are separated from the second elastic part. Under the action of the resilience of the second elastic part, the packaging bag pulls the target plant component upward to separate from the collection cutter.

[0016] As described above, the separation of the plurality of first limiting parts from the first elastic part precedes the separation of the plurality of second limiting parts from the second elastic part.

[0017] The beneficial effects of the present invention are as follows: By setting up the shielding mechanism, after the recognition unit recognizes the target plant, the body of the drone can fly to a position directly above the target plant. Then, the plurality of first support plates of the shielding mechanism are unfolded under the driving action of the driving part to shield the airflow blown towards the target plant driven by the flight of the drone. In this way, when the drone body approaches the target plant, the disturbance of the airflow to the target plant can be significantly reduced, so as to ensure that the collection unit can smoothly collect the target plant component. Moreover, both the collection unit and the shielding unit are arranged directly below the drone body, so that the problem of increased energy consumption caused by the center of gravity deviation due to uneven force during the flight of the drone body can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0019] Figure 1 A three-dimensional structural diagram of a shielding mechanism of a collection mechanism for a drone for collecting plant components provided in an embodiment of the present invention when in a folded state;

[0020] Figure 2 A first perspective three-dimensional structural diagram of a shielding mechanism of a collection mechanism for a drone for collecting plant components provided in an embodiment of the present invention when in a fully unfolded state;

[0021] Figure 3 A second perspective three-dimensional structural diagram of a shielding mechanism of a collection mechanism for a drone for collecting plant components provided in an embodiment of the present invention when in a fully unfolded state;

[0022] Figure 4Schematic three-dimensional structure diagram when the shielding mechanism of a collection mechanism for a drone used to collect plant components provided in an embodiment of the present invention is in a semi-expanded state;

[0023] Figure 5 Schematic cross-sectional structure diagram when the shielding mechanism of a collection mechanism for a drone used to collect plant components provided in an embodiment of the present invention is in a retracted state;

[0024] Figure 6 Schematic cross-sectional structure diagram of a packaging mechanism of a collection mechanism for a drone used to collect plant components provided in an embodiment of the present invention;

[0025] Figure 7 is Figure 6 Enlarged structure diagram at position A in

[0026] Figure 8 is Figure 6 Enlarged structure diagram at position B in

[0027] Explanation of reference numerals:

[0028] 1, body; 2, recognition unit; 3, shielding mechanism; 30, base; 31, first support plate; 32, shielding cloth; 33, collection cutter; 34, second support plate; 35, driving member; 350, driving source; 351, lead screw; 352, lead screw block; 353, first support rod; 354, second support rod; 355, chute; 356, shaft rod; 4, packaging mechanism; 40, packaging bag; 41, first elastic part; 42, first limiting part; 43, pressure-receiving block; 44, third support rod; 45, second elastic part; 46, second limiting part. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the attached Figure 1 to Figure 8 Attachments to make a further detailed introduction to the present invention.

[0030] An embodiment of the present invention provides a collection mechanism for a drone used to collect plant components, including the body 1 of the drone. An identification unit 2 and a collection unit are arranged on the body 1. The collection unit collects the components of the target plant based on the identification signal of the identification unit 2. It further includes a shielding mechanism 3. The shielding mechanism 3 includes a base 30 and a plurality of first support plates 31 arranged in sequence in the circumferential direction of the base 30. Each first support plate 31 is swingably connected to the base 30. A driving member 35 for driving the plurality of first support plates 31 to swing synchronously is further provided on the base 30. The driving member 35 drives the plurality of first support plates 31 to unfold based on the identification signal of the identification unit 2 to shield the airflow flowing towards the target plant.

[0031] Specifically, the collection unit in the prior art generally includes a collection tool and a collection mechanism. The recognition unit 2 is, for example, a video sensor, which are all prior arts and will not be elaborated here. The target plant components to be collected can be flowers, fruits or leaves. When using a drone to cooperate with the collection mechanism to collect the target plant components, there are two ways to arrange the collection mechanism: One is to arrange it directly below the drone body 1. During the collection operation, it is in a straight up and down state. For some plants with soft branches, under the airflow driven by the drone, they will sway or even topple, resulting in the collection mechanism carried by the drone being unable to collect the components of the target plant. The other is to arrange it at a position deviating from directly below the drone body 1. However, if the overall center of gravity of the drone and the collection mechanism shifts, the drone needs to increase power to adjust its flight attitude to ensure normal flight, which will increase energy consumption. Especially when collecting plant components in remote areas where it is difficult for humans to reach, the drone may not be able to fly back. If the target plant components to be collected are relatively heavy, it may even cause the drone to crash.

[0032] In this embodiment, to avoid the above problems, the collection unit is arranged directly below the drone body 1, and a shielding mechanism 3 is also arranged at this position. After the recognition unit 2 recognizes the target plant, the shielding mechanism 3 can block the airflow blowing towards the target plant. That is, the base 30 of the shielding mechanism 3 is fixedly connected to the position directly below the drone body 1 by bolts. A plurality of first support plates 31 are evenly arranged in the circumferential direction of the base 30. Each first support plate 31 is swingably arranged on the base 30, that is, the swinging mode of the first support plate 31 is from a substantially vertical position to a substantially horizontal position, or vice versa. And the swinging of the plurality of first support plates 31 is uniformly controlled by a driving member 35. For example, each first support plate 31 can be correspondingly provided with a driving source 350 with a telescopic function, such as an electric push rod, a cylinder, etc. Thus, the plurality of first support plates 31 have three states:

[0033] The first state is that the length directions of the plurality of first support plates 31 are all substantially parallel to the vertical direction (the retracted state). At this time, during the flight of the drone body 1, the wind resistance in the vertical direction can be reduced as much as possible.

[0034] The second state is that under the driving action of the driving member 35, the length directions of the plurality of first support plates 31 are all substantially parallel to the horizontal direction (the fully expanded state). At this time, when the drone body 1 approaches the target plant in the vertical direction, the plurality of first support plates 31 can play a role in shielding or reducing the disturbance of the airflow to the target plant.

[0035] In the third state, under the driving action of the driving member 35, the length direction of the multiple first support plates 31 is neither parallel to the vertical direction nor the horizontal direction. For example, the deflection angle of the multiple first support plates 31 from the folded state to the fully expanded state is 90 degrees, then they stop when they are deflected to 45 degrees (semi-expanded state). At this time, the multiple first support plates 31 can act as the landing legs of the drone body 1.

[0036] The beneficial effect of this embodiment is that by setting the shielding mechanism 3, after the identification unit 2 identifies the target plant, the main body 1 of the drone can fly to a position directly above the target plant, and then the multiple first support plates 31 of the shielding mechanism 3 are deployed under the driving action of the driving member 35 to block the airflow blowing toward the target plant due to the flight of the drone. In this way, when the drone main body 1 approaches the target plant, the disturbance of the airflow to the target plant can be significantly reduced, thereby ensuring that the collection unit can smoothly collect the target plant components, and the collection unit and the shielding unit are both arranged directly below the drone main body 1, so that the problem of increased energy consumption due to center of gravity shift caused by uneven force during the flight of the drone main body 1 can be avoided.

[0037] Preferably, an elastic shielding cloth 32 is commonly sleeved on the outer walls of the plurality of first support plates 31 , and the shielding cloth 32 is elastically deformed due to the swinging action of the first support plates 31 , and due to the elastic force of the shielding cloth 32 , the plurality of first support plates 31 tend to be retracted.

[0038] Specifically, it can be seen from the above embodiments that the plurality of first support plates 31 have a folded state and an expanded state. If in the fully expanded state, the plurality of first support plates 31 cooperate with each other to form a substantially complete disc shape, then in the folded state, two adjacent first support plates 31 will inevitably overlap, and if in the folded state, the plurality of first support plates 31 cooperate with each other to form a substantially complete circle with a radial cross section, then in the expanded state, there will inevitably be a gap between two adjacent first support plates 31. In order to reduce the load of the drone, in this embodiment, “in the folded state, the plurality of first support plates 31 cooperate with each other to form a substantially complete circle with a radial cross section” is adopted. The plurality of first support plates 31 are spliced ​​together to form a substantially complete circle in radial cross section, and an elastic shielding cloth 32 is sleeved on the outer walls of the plurality of first support plates 31. When the plurality of first support plates 31 are in a retracted state, the radial cross section of the shielding cloth 32 is also substantially a complete circle. During the unfolding of the plurality of first support plates 31, the shielding cloth 32 is supported by the first support plates 31 and can be elastically deformed. In this way, after the plurality of first support plates 31 are unfolded, the interval between two adjacent first support plates 31 can be shielded by the shielding cloth 32. In this way, after the lightweight UAV body 1 is loaded, the effect of shielding the airflow blowing toward the target plant can be improved.

[0039] Preferably, each of the first support plates 31 is arc-shaped; specifically, the arc-shaped first support plates 31 can better disperse the acting force of the airflow when blocking the airflow, achieving a flow guiding effect, thereby reducing wind resistance.

[0040] Furthermore, a collection cutter 33 is installed on each of the first support plates 31. During the retraction stroke of the plurality of first support plates 31 driven by the driving member 35, the plurality of collection cutters 33 jointly cut the target plant components.

[0041] Specifically, in the foregoing embodiment, for the collection of the target plant components, a collection tool and a collection mechanism need to be used separately, which undoubtedly increases the load of the UAV body 1. In this embodiment, the collection tool for collecting the target plant components is made into a split structure, and the number thereof corresponds to the number of the first support plates 31, that is, the collection tool is divided into a plurality of collection cutters 33, and a collection cutter 33 is installed on each of the first support plates 31. During specific operation, when the recognition unit 2 recognizes the target plant, the UAV body 1 flies to a position directly above the target plant, and then the plurality of first support plates 31 are driven by the driving member 35 to switch from the retracted state to the fully expanded state. Then the UAV body 1 approaches the target plant. When the target plant components are within the range wrapped by the plurality of first support plates 31 in the retracted state, the driving member 35 drives the plurality of first support plates 31 to switch from the fully expanded state to the retracted state. Then, during the retraction stroke of the plurality of first support plates 31, the plurality of collection cutters 33 will gradually cut the stalks connected to the target plant components. Until the plurality of first support plates 31 are fully retracted, the target plant components will be cut off. The cooperation between the plurality of first support plates 31 and the shielding cloth 32 forms a package for the multi-target plant components in the retracted state, that is, it plays a collection role. The advantage of such a setting is that the picking and collection of the target plant components can be completed by using the retraction of the plurality of first support plates 31.

[0042] Preferably, a second support plate 34 is provided between two adjacent first support plates 31, and the second support plate 34 provides auxiliary support for the shielding cloth 32 between two adjacent first support plates 31. Specifically, since multiple first support rods 353 and the shielding cloth 32 are used in cooperation, a better overall structure can be formed in the retracted state or the deployed state. Moreover, the structure of the first support plate 31 is arc-shaped, which can play a role in guiding the flow and reducing wind resistance to a certain extent. However, in the retracted state, there is no structure for supporting the shielding cloth 32 between two adjacent first support plates 31. Then, due to the elastic force of the shielding cloth 32 itself, the part between two adjacent first support plates 31 is basically in a planar structure, while the surface of the shielding cloth 32 in contact with the first support plate 31 is arc-shaped. Thus, the wind resistance caused by the planar structure is necessarily greater than that caused by the arc-shaped structure. Therefore, in this embodiment, a second support plate 34 is provided between two adjacent first support plates 31. The second support plate 34 is arc-shaped like the first support plate 31, and during the deployment process of multiple first support plates 31, multiple second support plates 34 do not follow the deployment. They only support the shielding cloth 32 when multiple first support rods 353 are in the retracted state.

[0043] Preferably, the driving member 35 includes a driving source 350 provided on the base 30. A lead screw 351 is installed at the power output end of the driving source 350. A nut block 352 is screwed on the lead screw 351. A first support rod 353 is fixedly connected to each first support plate 31. A second support rod 354 is jointly hinged between the nut block 352 and each first support rod 353. Specifically, in the foregoing embodiment, for the use of the driving member 35, a driving source 350 with a telescopic function, such as an electric push rod or a cylinder, is provided for each first support plate 31. In this embodiment, another method is adopted, that is, a driving source 350 is provided on the base 30. The driving source 350 is a micro motor. The power output end of the micro motor is fixedly connected to the lead screw 351. The nut block 352 is screwed on the lead screw 351. The forward and reverse rotation of the lead screw 351 can drive the nut block 352 to reciprocate linearly. That is, when the lead screw 351 rotates, it will first give the nut block 352 a circumferential rotational force. And a first support rod 353 and a second support rod 354 are connected between the nut block 352 and each first support plate 31. The swinging direction of the first support plate 31 is the same as that of the second support rod 354, but different from the direction of the circumferential force received by the nut block 352. Thus, the circumferential movement of the nut block 352 is restricted. Then, based on the action of the thread fit, the nut block 352 will move linearly on the lead screw 351, thereby driving multiple first support plates 31 to retract or deploy synchronously.

[0044] Preferably, it further includes a packing mechanism 4. After the target plant components are cut by multiple collecting cutters 33, the packing mechanism 4 packs the target plants. The packing mechanism 4 includes a packing bag 40 provided at one end of the lead screw 351 away from the drive source 350. A first elastic part 41 is provided at the opening end of the packing bag 40, and a first limiting part 42 is provided on each second support plate 34. Before the target plant components are cut, the opening end of the packing bag 40 is in an open state under the combined action of the multiple first limiting parts 42 and the first elastic part 41. After the target plant components are cut, the multiple first limiting parts 42 are separated from the first elastic part 41. Under the resilience of the first elastic part 41, the opening end of the packing bag 40 is tightened to pack the cut target plant components.

[0045] Specifically, as can be seen from the foregoing embodiments, when the UAV body 1 returns to the landing point after collecting the target plant components, multiple first support plates 31 are used to be semi-expanded to act as landing legs. That is, when the UAV approaches the landing point, the multiple first support plates 31 need to be driven by the driving member 35 to reach the semi-expanded state, so that the target plant components wrapped inside will fall, and there will be a situation of damaging the target plant components. Therefore, in this embodiment, a packing mechanism 4 is further provided, which can pack the picked target plant components to prevent the above situation.

[0046] That is, a packing bag 40 is fixedly connected to the end of the lead screw 351 away from the drive source 350. The packing bag 40 has a structure with one end open, and the open end faces the plurality of collecting cutters 33 in the retracted state. The bottom of the packing bag 40 (the end away from the open end) is inserted on the lead screw 351 through a mounting block and fixed with bolts. A first elastic part 41, such as a rubber band, is arranged at the open end of the packing bag 40. Correspondingly, a first limiting part 42 is arranged on each second support plate 34. The first limiting part 42 has a hook-shaped structure. When the plurality of first limiting parts 42 jointly open the open end of the packing bag 40, the first elastic part 41 is located at the hook bend of the first limiting part 42, and the hook bend has a planar structure, and at this time the planar structure is vertical. That is, when the second support plate 34 moves inward towards the packing bag 40 by a certain distance, the plane of the hook bend becomes inclined, and the lower end of the inclination is closer to the packing bag 40 than the upper end. In this way, the limiting effect of the first limiting part 42 on the first elastic part 41 is not sufficient to resist the resilience of the first elastic part 41, so the packing bag 40 will tighten the bag mouth under the resilience of the first elastic part 41. Therefore, in this embodiment, a pressure-receiving block 43 is provided on the base 30 through an elastic member. The pressure-receiving block 43 is sleeved on the lead screw 351, but they do not contact. A third support rod 44 is jointly hinged between the pressure-receiving block 43 and each second support plate 34. The second support plate 34 is swingably arranged on the base 30. Under the elastic force of the elastic member, when in the retracted state, the second support plate 34 can externally support the shielding cloth 32. The end of the second support rod 354 connected to the first support rod 353 can rotate and slide. That is, a chute 355 is provided at the end of the second support rod 354 connected to the first support rod 353. The length of the chute 355 is greater than the distance required for the first limiting part 42 to disengage from the first elastic part 41. The shaft rod 356 provided on the first support rod 353 can slide and rotate in the chute 355. When the plurality of first support plates 31 need to be unfolded, the end of the chute 355 close to the wire block 352 abuts against the shaft rod 356. When the plurality of first support plates 31 are retracted, it is realized by the resilience of the shielding cloth 32. Thus, when the target plant components picked are to be packed, the drive source 350 first drives the lead screw 351 to rotate, so that the wire block 352 moves towards the direction close to the drive source 350. The wire block 352 will synchronously drive the plurality of first support plates 31 to gradually retract. Until completely retracted, the target plant components are also picked. Then the drive source 350 continues to drive the lead screw 351 to rotate, and the wire block 352 continues to approach the drive source 350. At this time, relative movement occurs between the chute 355 and the shaft rod 356, and the plurality of first support plates 31 will not continue to retract. The wire block 352 will squeeze the pressure-receiving block 43 to move. The pressure-receiving block 43 compresses the elastic member and drives the connected second support plate 34 to gradually approach the packing bag 40 through each third support rod 44. As the plane of the hook bend of the first limiting part 42 gradually inclines, the first elastic part 41 disengages from the first limiting part 42 and contracts to tighten the bag mouth, thereby packing the target plant components.The packing bag 40 is fixed to the end of the screw rod 351, so when the drone body 1 lands, the first plurality of support plates 31 are half-expanded, and the target plant components will not fall off, thereby achieving the purpose of protecting the target plant components.

[0047] Furthermore, a second elastic portion 45 is arranged on the packing bag 40, and the portion of the packing bag 40 between the first elastic portion 41 and the second elastic portion 45 is used for packing the target plant components, and a second limiting portion 46 is also provided on each second support plate 34; before the target plant components are cut, the packing bag 40 is in an open state under the joint action of multiple second limiting portions 46 and the second elastic portion 45; after the target plant components are cut, the multiple second limiting portions 46 are separated from the second elastic portion 45, and under the action of the rebound force of the second elastic portion 45, the packing bag 40 pulls the target plant components upward to disengage from the collecting cutter 33; the separation of the multiple first limiting portions 42 and the first elastic portion 41 precedes the separation of the multiple second limiting portions 46 and the second elastic portion 45.

[0048] Specifically, the cutting edge of the collecting cutter 33 will be worn after multiple times of picking the target plant components. In this way, the stems connected to some target plant components cannot be completely cut off. In addition, when the multiple first support plates 31 are in a semi-expanded state, the lowest point of the stems connected to the target plant components is lower than the lowest point where the multiple first support plates 31 contact the ground at the take-off and landing points. In this way, during the landing of the drone body 1, the radial compression of the ground will produce an extrusion effect on the packaged target plant components. Therefore, in order to avoid the above situation, in this embodiment, a second elastic portion 45 is arranged on the packaging bag 40, and the area between the first elastic portion 41 and the second elastic portion 45 is used for packaging the target plant components, and the first elastic portion 41 is radially compressed. The second elastic portion 45 contracts (elastically deforms) along the axial direction, and a second limiting portion 46 is correspondingly arranged on each second support plate 34. The second limiting portion 46 has a substantially identical structure to the first limiting portion 42. However, when the wire block 352 does not squeeze the pressure block 43, the planar structure of the hook of the second limiting portion 46 is inclined, and the high end of the inclination is closer to the packing bag 40 than the low end. That is, in the process of each second support plate 34 deflecting toward the packing bag 40, the separation of the plurality of first limiting portions 42 and the first elastic portion 41 precedes the separation of the plurality of second limiting portions 46 and the second elastic portion 45. In this way, the target plant component will be packed first, and then pulled toward the end of the wire rod 351, thereby avoiding the above-mentioned problem.

[0049] Only some exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. An acquisition mechanism for a drone to collect plant components, including the body of the drone. An identification unit and an acquisition unit are arranged on the body. The acquisition unit collects the components of the target plant based on the identification signal of the identification unit, and is characterized in that The device also includes a shielding mechanism; the shielding mechanism includes a base disposed directly below the body and a plurality of first support plates sequentially arranged in a circumferential direction of the base, each of the first support plates is swingably connected to the base, and a driving member for driving the plurality of first support plates to swing synchronously is also provided on the base, and the driving member drives the plurality of first support plates to unfold based on the recognition signal of the recognition unit to shield the airflow flowing toward the target plant; An elastic shielding cloth is commonly sleeved on the outer walls of the plurality of first supporting plates, and the shielding cloth is elastically deformed based on the swinging action of the first supporting plates, and based on the elastic force of the shielding cloth, the plurality of first supporting plates tend to be retracted; A collecting cutter is installed on each of the first supporting plates, and when the first supporting plates are retracted based on the driving action of the driving member, the collecting cutters jointly cut the target plant components; A second support plate is provided between two adjacent first support plates, and the second support plate provides auxiliary support for the shielding cloth between the two adjacent first support plates; The driving member comprises a driving source arranged on a base, a screw rod is installed at the power output end of the driving source, a screw block is screwed on the screw rod, a first support rod is fixedly connected to each first support plate, and a second support rod is hinged between the screw block and each first support rod; It also includes a packaging mechanism, which packages the target plant components after they are cut by the multiple collection cutters; The packaging mechanism comprises a packaging bag arranged at an end of the screw rod away from the driving source, the opening end of the packaging bag is provided with a first elastic part, and each second support plate is provided with a first limiting part; before the target plant component is cut, the opening end of the packaging bag is in an open state under the joint action of the multiple first limiting parts and the first elastic part; After the target plant components are cut, the plurality of first limiting portions are separated from the first elastic portion, and under the action of the resilience of the first elastic portion, the open end of the packing bag is tightened to pack the cut target plant components.

2. The collection mechanism for an unmanned aerial vehicle for collecting plant components according to claim 1, characterized in that, Each of the first supporting plates is in an arc shape.

3. The collection mechanism for an unmanned aerial vehicle for collecting plant components according to claim 1, wherein, A second elastic portion is also arranged on the packing bag, and the portion of the packing bag between the first elastic portion and the second elastic portion is used for packing target plant components, and each second support plate is also provided with a second limiting portion; before the target plant components are cut, the packing bag is in an open state under the joint action of multiple second limiting portions and the second elastic portion; after the target plant components are cut, the multiple second limiting portions are separated from the second elastic portion, and under the action of the rebound force of the second elastic portion, the packing bag pulls the target plant components upward to separate from the collecting cutter.

4. The collection mechanism for drones to collect plant components according to claim 3, characterized in that, The plurality of first limiting portions are separated from the first elastic portion before the plurality of second limiting portions are separated from the second elastic portion.

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