Fertilizer feeding device

Abstract

The present application provides a fertilizer feeding device, comprising a shell, wherein the shell has an accommodating space inside; a feeding mechanism, wherein the feeding mechanism is arranged in the accommodating space, the feeding mechanism comprises a connector and at least two barrels, wherein the at least two barrels are arranged on the connector at even intervals along a circumferential trajectory, and one end of at least two barrels is in contact with a first end surface of the shell; a control unit, wherein the control unit is connected to the shell, and the control unit is connected to a side of the feeding mechanism away from the first end surface of the shell, and the control unit can drive the feeding mechanism to rotate with the central axis of the circumferential trajectory of the barrel arrangement as the axis; wherein the first end surface of the shell is provided with a discharge port, and the control unit controls the feeding mechanism to rotate so that one end of at least two barrels is opposite to the discharge port in sequence, and the barrel in the present application does not limit the specific form of the fertilizer when feeding, thereby solving the technical problem that there is currently no feeding device for solid fertilizer, and the feeding steps of solid fertilizer are complicated, time-consuming and labor-intensive.

Description

Technical Field

[0001] The present application relates to the technical field of precision fertilization, and in particular to a fertilizer feeding device. Background Art

[0002] Fertilization is the main means to promote agricultural production, but long-term excessive and uneven use of fertilizers will not only lead to a decline in soil productivity and affect agricultural production, but also cause ecological and environmental problems such as agricultural product and groundwater pollution and water eutrophication. With the continuous development of precision agriculture, precision fertilizer feeding devices have been promoted and applied.

[0003] The existing fertilizer feeding device is mainly for liquid fertilizer. During operation, the liquid fertilizer is first placed in a feeding bucket, and the feeding bucket and the nozzle are connected by a pump. At the same time, multiple control valves are set between the feeding bucket and the nozzle to realize the feeding of liquid fertilizer.

[0004] However, in the process of realizing the invention, the inventors found that farmers mainly use solid fertilizers when applying fertilizers, and there is currently no feeding device for solid fertilizers. This requires that the solid fertilizers be dissolved before fertilization can be carried out, which is cumbersome, time-consuming and labor-intensive. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a fertilizer feeding device to solve the technical problem that there is no feeding device for solid fertilizer and the feeding steps for solid fertilizer are complicated, time-consuming and labor-intensive.

[0006] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0007] The present application provides a fertilizer feeding device, comprising:

[0008] A housing, wherein the housing has an accommodating space inside;

[0009] A material placing mechanism, the material placing mechanism is arranged in the accommodating space, the material placing mechanism comprises a connector and at least two material barrels, at least two material barrels are arranged on the connector at even intervals along a circumferential track, and one end of at least two material barrels is in contact with the first end surface of the shell;

[0010] A control unit, the control unit is connected to the housing, the control unit is connected to a side of the material placing mechanism away from the first end surface of the housing, and the control unit can drive the material placing mechanism to rotate around the central axis of the circular trajectory of the barrel arrangement as an axis;

[0011] The first end surface of the shell is provided with a discharge port, and the control unit controls the material placement mechanism to rotate so that one end of at least two of the barrels is opposite to the discharge port in sequence.

[0012] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0013] Optionally, in the aforementioned fertilizer feeding device, the connector is an annular plate body, and at least two fixing holes are evenly spaced around an inner ring of the connector, and at least two of the material barrels pass through the fixing holes respectively and are connected to the fixing holes.

[0014] Optionally, in the aforementioned fertilizer feeding device, the feeding mechanism includes three connectors, and the three connectors are respectively connected to both ends and the middle of at least two of the barrels.

[0015] Optionally, in the aforementioned fertilizer feeding device, the control unit comprises:

[0016] A transmission part, the transmission part is fixedly connected to a side of the material placing mechanism away from the first end surface of the shell;

[0017] A motor is arranged on the housing, and a driving shaft of the motor is connected to the transmission part, and is used to control the rotation of the transmission part to drive the material placing mechanism to rotate.

[0018] Optionally, in the aforementioned fertilizer feeding device, the transmission part comprises:

[0019] A first base, the first base is fixedly connected to the connector, and a first fixing groove is provided on a side of the first base facing away from the first end surface of the shell;

[0020] A first connecting member, wherein one end of the first connecting member is provided with a first protrusion adapted to the first fixing groove, and the other end of the first connecting member is provided with a first connecting hole;

[0021] Wherein, the driving shaft of the motor is connected to the first connecting hole, and is used to control the rotation of the first connecting member to drive the first base, the connector and at least two of the barrels to rotate in sequence.

[0022] Optionally, in the aforementioned fertilizer feeding device, the transmission part comprises:

[0023] A second base, the second base is fixedly connected to the other ends of at least two of the barrels, and a second fixing groove is provided on a side of the second base facing away from the first end surface of the shell;

[0024] A second connecting member, wherein one end of the second connecting member is provided with a second protrusion adapted to the second fixing groove, and the other end of the second connecting member is provided with a second connecting hole;

[0025] Wherein, the driving shaft of the motor is connected to the second connecting hole, and is used to control the rotation of the second connecting member to drive the second base and at least two of the barrels to rotate in turn.

[0026] Optionally, the aforementioned fertilizer feeding device further includes:

[0027] A frame, the frame being arranged on a second end face of the shell opposite to the first end face and located outside the accommodating space of the shell, and the motor being fixedly mounted on the frame;

[0028] A through hole is provided on the second end surface of the shell, and the second connecting member passes through two ends of the through hole and is respectively connected to the second base and the motor.

[0029] Optionally, in the aforementioned fertilizer feeding device, the outer wall of the shell is covered with an end cover to form a first end face, the end cover is fitted with one end of at least two of the barrels, a discharge port is provided on the end cover, and the cross section of the end cover is rectangular;

[0030] The four corners of the inner side of the end cover are respectively provided with fixing columns with first magnets, and the end of the shell opposite to the inner side of the end cover is provided with four limiting grooves adapted to the four fixing columns;

[0031] Among them, four second magnets are arranged at positions of the outer wall of the shell corresponding to the four limiting grooves, and the four second magnets and the four first magnets work together to magnetically attract the end cover to the shell.

[0032] Optionally, the aforementioned fertilizer feeding device further includes:

[0033] A visual sensor, the visual sensor being disposed on an outer wall of the housing and configured to collect an image of the plant and generate a first signal;

[0034] A distance sensor, wherein the distance sensor is disposed on the outer wall of the housing, and a collecting end of the distance sensor is oriented in the same direction as the discharge port, and is used to collect a straight-line distance between the distance sensor and the plant and generate a second signal;

[0035] A central controller, wherein the central controller is respectively connected to the control unit, the visual sensor and the distance sensor signals;

[0036] The central controller receives the first signal of the visual sensor and the second signal of the distance sensor, and controls the control unit based on the first signal and the second signal to control the amount of fertilizer discharged from the discharge port.

[0037] Optionally, the aforementioned fertilizer feeding device further includes:

[0038] Two first support plates, the two first support plates are arranged in parallel and at intervals on the outer wall of the shell, the visual sensor is arranged between the two first support plates, and the visual sensor is rotatably connected to the two first support plates;

[0039] A second support plate is arranged across the other side of the two first support plates opposite to the side connected to the shell, and the distance sensor is fixedly arranged on the second support plate.

[0040] Compared with the prior art, the fertilizer feeding device provided by the present application is provided with a feeding mechanism in the accommodating space of the shell, the feeding mechanism includes a connector and at least two barrels, at least two barrels are evenly spaced along the circumferential trajectory and arranged on the connector, and one end of at least two barrels is in contact with the first end face of the shell, the control unit is respectively connected to the shell and the side of the feeding mechanism away from the first end face of the shell, the control unit drives the feeding mechanism to rotate with the central axis of the circumferential trajectory of the barrel arrangement as the axis, the first end face of the shell is provided with a discharge port, and the control unit controls the feeding mechanism to rotate so that one end of at least two barrels is opposite to the discharge port in turn. The fertilizer feeding device of the present invention can place fertilizers of different forms in the barrel, and at the same time, different numbers of barrels of fertilizers can be applied according to the growth conditions of the plants, so as to achieve accurate feeding of fertilizers of different forms, and is more practical. When feeding solid fertilizers, there is no need to dissolve them in advance, and feeding can be carried out directly, which is simple in steps and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0042] Figure 1 A cross-sectional view of a fertilizer feeding device from a first perspective is schematically shown;

[0043] Figure 2 A schematic diagram of the structure of a fertilizer feeding device from a first perspective is shown schematically;

[0044] Figure 3 A schematic diagram of the structure of a fertilizer feeding device from a second viewing angle is shown schematically;

[0045] Figure 4 A cross-sectional view of a fertilizer feeding device from a second viewing angle is schematically shown;

[0046] Figure 5 A connector of a fertilizer feeding device is schematically shown;

[0047] Figure 6 A feeding mechanism of a fertilizer feeding device is schematically shown;

[0048] Figure 7 Schematically shows an exploded view of a first base and a first connecting member of a fertilizer feeding device;

[0049] Figure 8 A connection diagram of a first base and a first connecting member of a fertilizer feeding device is schematically shown;

[0050] Fig. 9 Schematically shows an exploded view of a second base and a second connecting member of a fertilizer feeding device;

[0051] Fig.10 A connection diagram of a second base and a second connecting member of a fertilizer feeding device is schematically shown;

[0052] Fig.11 A front view of a fertilizer feeding device is schematically shown;

[0053] Fig.12 A top view of a fertilizer feeding device is schematically shown;

[0054] Fig.13 A bottom view of a fertilizer feeding device is schematically shown;

[0055] Fig.14 A left view of a fertilizer feeding device is schematically shown;

[0056] Fig.15 A right view of a fertilizer feeding device is schematically shown;

[0057] Fig.16 A schematic diagram of an end cover of a fertilizer feeding device is shown schematically.

[0058] Description of Figure Numbers:

[0059] Shell 1, discharge port 11, hollow tube 111, first end face 12 of shell, second end face 13 of shell, through hole 131, limiting groove 14, second placement groove 15, material placement mechanism 2, connector 21, fixing hole 211, barrel 22, control unit 3, transmission part 31, first base 311, first fixing groove 3111, first connecting member 312, first protrusion 3121, first connecting hole 3122, second base 313, second fixing groove 3131, second connecting member 314, second protrusion 3141, second connecting hole 3142, frame 4, end cover 5, fixing column 51, first placement groove 511, visual sensor 6, distance sensor 7, first support plate 8, second support plate 9. DETAILED DESCRIPTION

[0060] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0061] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs.

[0062] like Figure 1-Figure 4 As shown, a fertilizer feeding device proposed in the first embodiment of the present invention includes: a shell 1, a feeding mechanism 2 and a control unit 3.

[0063] The housing 1 has an accommodating space inside;

[0064] The material placing mechanism 2 is arranged in the accommodating space, and the material placing mechanism 2 comprises a connector 21 and at least two barrels 22, at least two of the barrels 22 are evenly spaced and arranged on the connector 21 along a circumferential track, and one end of at least two of the barrels 22 is in contact with the first end surface 12 of the shell;

[0065] The control unit 3 is connected to the housing 1, and is connected to a side of the material placing mechanism 2 away from the first end surface of the housing 1, and the control unit 3 can drive the material placing mechanism 2 to rotate around the central axis of the circular trajectory arranged by the barrel 22 as the axis;

[0066] The first end surface 12 of the shell is provided with a discharge port 11 , and the control unit 3 controls the material placement mechanism 2 to rotate so that one end of at least two of the barrels 22 is aligned with the discharge port 11 in sequence.

[0067] Specifically, the shape of the shell 1 is not further limited, and can be cylindrical, rectangular or other polyhedral, preferably rectangular. The material of the shell 1 is not limited, and can be a metal with a certain strength, such as stainless steel. In order to improve the corrosion resistance of the surface of the shell 1 and enhance the service life of the shell 1, the surface of the shell 1 can be painted. The shape of the internal accommodating space of the shell 1 is not limited, as long as it can accommodate the material placement mechanism 2 and ensure that the material placement mechanism 2 can rotate in the accommodating space.

[0068] The barrel 22 in the feeding mechanism 2 is used to place fertilizer. The form of the fertilizer placed in the barrel 22 is not limited, and it can be solid particles, powder, or liquid fertilizer. However, it should be noted that when placing liquid fertilizer, it is necessary to ensure the sealing when one end of the barrel 22 is in contact with the first end face 12 of the shell. The sealing means in the prior art can be used for sealing, which will not be repeated here. The material of the barrel 22 is not further limited, and it can be stainless steel, high-density polyethylene, etc. Preferably, high-density polyethylene material is selected to improve the corrosion resistance of the barrel 22 and the service life of the barrel 22. One end of the barrel 22 is open, and one of the barrels 22 is directly opposite to the discharge port 11. When feeding is required, the fertilizer feeding device can be tilted by manual or mechanical arms, and the fertilizer in the barrel 22 flows out from the discharge port 11 under the action of gravity to achieve feeding.

[0069] The barrel 22 is used to place fertilizer. One end of the barrel 22 must be open to ensure the discharge of fertilizer when the barrel 22 is facing the discharge port 11. The other end of the barrel 22 can be a completely sealed structure or a structure with a feeding hole. When the other end of the barrel 22 is a completely sealed structure, it is necessary to manually add fertilizer to the inside of the barrel 22; when the other end of the barrel 22 is provided with a feeding hole, it can be filled mechanically. At this time, a storage device can be provided on the outer wall of the shell 1, and the technical means of feeding in the existing technology can be used to add material to the barrel 22. The number of barrels 22 is at least two, and the specific number is not limited. In order to facilitate production and processing, and to facilitate operation, the number of barrels 22 is at least 2, and can be 2-19, or even more, among which 11 is preferred.

[0070] The material of the connector 21 is not further limited, and can be a metal material, such as stainless steel. The number of connectors 21 is also not limited, and can be one or more. The length of the connector 21 in the length direction of the barrel 22 must be less than or equal to the length of the barrel 22, so that the overall structure of the material placement mechanism 2 is more compact.

[0071] The control unit 3 may be a stepper motor, a servo motor or a steering gear, which is not limited here, as long as it can drive the material placing mechanism 2 to rotate around the central axis of the circular trajectory arranged by the barrel 22. The control unit 3 may include a control switch, and the control switch is arranged on the outer wall of the housing 1 to control the operation of the control unit 3, thereby controlling the rotation of the material placing mechanism 2.

[0072] The discharge port 11 can be provided with a hollow tube 111 with both ends opened. The hollow tube 111 is provided on the outer wall of the shell 1. One end of the hollow tube 111 is open opposite to the discharge port 11, so as to prevent the fertilizer from spilling on the shell 1 during the fertilization process. The material of the hollow tube 111 is not further limited, and can be stainless steel, high-density polyethylene, etc. Preferably, high-density polyethylene is selected to improve the corrosion resistance of the hollow tube 111 and the service life of the barrel 22. Furthermore, the inner diameters of the discharge port 11, the barrel 22, and the hollow tube 111 are consistent, and one end of the barrel 22 is opposite to the discharge port 11 and the hollow tube 111 in turn, which is more conducive to all the fertilizers in the barrel 22 flowing out to the vicinity of the plant.

[0073] The fertilizer feeding device provided by the present application is provided with a feeding mechanism 2 in the accommodation space of the shell 1, the feeding mechanism 2 includes a connector 21 and at least two barrels 22, at least two barrels 22 are evenly spaced on the connector 21 along the circumferential trajectory, and one end of at least two barrels 22 is in contact with the first end face 12 of the shell, the control unit 3 is respectively connected to the shell 1 and the side of the feeding mechanism 2 away from the first end face 12 of the shell, the control unit 3 drives the feeding mechanism 2 to rotate with the central axis of the circumferential trajectory arranged by the barrels 22 as the axis, the first end face 12 of the shell is provided with a discharge port 11, and the control unit 3 controls the feeding mechanism 2 to rotate so that one end of at least two barrels 22 is aligned with the discharge port 11 in sequence. In the fertilizer feeding device of the present invention, fertilizers of different forms can be placed in the barrel 22, and fertilizers of different numbers of barrels 22 can be applied according to the growth conditions of the plants, so as to achieve accurate feeding of fertilizers of different forms, and the practicality is stronger, and there is no need to dissolve solid fertilizers in advance when feeding, the steps are simple, and time and labor are saved.

[0074] like Figure 5 and Figure 6 As shown, in the specific implementation, the shape of the connector 21 is not further limited, and it can be an annular plate, a rectangular plate, or other polygonal plates. Preferably, the connector 21 is an annular plate, which saves manufacturing costs and makes the material placement mechanism 2 lighter. At least two fixing holes 211 are evenly spaced around the inner ring of the connector 21. The number of the fixing holes 211 is consistent with the number of the barrels 22. At least two of the barrels 22 pass through the fixing holes 211 and are connected to the fixing holes 211. Furthermore, in order to ensure that the connector 21 constrains the barrel 22 and avoids shaking due to the centripetal force during the rotation of the barrel 22, which causes the fertilizer to leak, the accommodating space is selected as a cylinder, and the outer wall of the connector 21 and the inner wall of the accommodating space are gap-matched.

[0075] like Figure 6As shown, in a specific implementation, the material placing mechanism 2 includes three connectors 21 , and the three connectors 21 are respectively connected to both ends and the middle of at least two material barrels 22 .

[0076] Specifically, the number of connectors 21 is not limited, and can be one or more. Preferably, the number of connectors 21 is three, and the three connectors 21 are arranged on the barrel 22 at intervals, and are respectively connected to the two ends and the middle of the barrel 22 to support and constrain the barrel 22, so as to avoid the barrel 22 shaking due to gravity and centripetal force during the rotation process, resulting in one end of the barrel 22 not fitting tightly with the first side surface of the housing 1, thereby causing the barrel 22 to leak.

[0077] Figure 1-Figure 4 and Figure 7-Figure 10 As shown, in a specific implementation, the control unit 3 includes:

[0078] A transmission part 31, wherein the transmission part 31 is fixedly connected to a side of the material placing mechanism 2 away from the first end surface 12 of the housing;

[0079] A motor (not shown in the figure) is arranged on the housing 1 , and a driving shaft of the motor is connected to the transmission part 31 , so as to control the rotation of the transmission part 31 to drive the material placing mechanism 2 to rotate.

[0080] Specifically, the motor can be a stepper motor or a servo motor, and the motor can be arranged in the accommodating space, but in order to make the overall structure in the housing 1 more compact, preferably, the motor is arranged outside the housing 1. The driving shaft of the motor is connected to the material placing mechanism 2 through the transmission part 31. During the working process, the motor controls the transmission part 31 to rotate, driving the rotation of the material placing mechanism 2.

[0081] like Figure 7-Figure 8 As shown, in a specific implementation, the transmission part 31 includes:

[0082] A first base 311, wherein the first base 311 is fixedly connected to the connector 21, and a first fixing groove 3111 is provided on a side of the first base 311 facing away from the first end surface of the housing 1;

[0083] A first connecting member 312, wherein a first protrusion 3121 adapted to the first fixing groove 3111 is disposed at one end of the first connecting member 312, and a first connecting hole 3122 is disposed at the other end of the first connecting member 312;

[0084] The driving shaft of the motor (not shown) is connected to the first connecting hole 3122 for controlling the rotation of the first connecting member 312 to drive the first base 311, the connector 21 and at least two barrels 22 to rotate in turn.

[0085] Specifically, the first base 311 is a circular plate structure, the diameter of the first base 311 is equal to the inner ring diameter of the connector 21 of the annular plate body, and the first base 311 is fixedly connected to the connector 21 close to the base by welding or bolting, or the first base 311 can also be integrally formed with the connector 21. A first fixing groove 3111 is provided on the side of the first base 311 away from the first end surface of the shell 1, and the first fixing groove 3111 is located at the center of the first base 311 of the circular plate body. A first protrusion 3121 adapted to the first fixing groove 3111 is provided at one end of the first connecting member 312. The shapes of the first fixing groove 3111 and the first protrusion 3121 are not further limited, as long as the first connecting member 312 can drive the first base 311 to rotate after the two are matched.

[0086] like Figure 9-10 As shown, in a specific implementation, the transmission part 31 includes:

[0087] A second base 313, the second base 313 is fixedly connected to the other ends of at least two of the barrels 22, and a second fixing groove 3131 is provided on a side of the second base 313 away from the first end surface of the housing 1;

[0088] A second connecting member 314, wherein one end of the second connecting member 314 is provided with a second protrusion 3141 adapted to the second fixing groove 3131, and the other end of the second connecting member 314 is provided with a second connecting hole 3142;

[0089] The driving shaft of the motor (not shown) is connected to the second connecting hole 3142 for controlling the rotation of the second connecting member 314 to drive the second base 313 and at least two barrels 22 to rotate in turn.

[0090] Specifically, the second base 313 can be a circular plate structure, and the second base 313 is connected to the other end of the barrel 22 by welding. Preferably, a second fixing groove 3131 is provided on the side of the second base 313 that is away from the first end surface of the housing 1, and the second fixing groove 3131 is located at the center of the circular plate second base 313. A second protrusion 3141 that matches the second fixing groove 3131 is provided at one end of the second connecting member 314. The shapes of the second fixing groove 3131 and the second protrusion 3141 are not further limited, as long as the second connecting member 314 can drive the second base 313 to rotate after the two are matched.

[0091] like Figure 2-Figure 3 As shown, in a specific implementation, the frame 4 is arranged on the second end face of the housing 1 opposite to the first end face and is located outside the accommodating space of the housing 1, and the motor is fixedly mounted on the frame 4;

[0092] A through hole 131 is provided on the second end surface 13 of the housing, and the second connecting member 314 passes through two ends of the through hole 131 and is respectively connected to the second base 313 and the motor.

[0093] Specifically, the frame 4 can be fixedly mounted on the housing 1 by welding or bolts, etc. The frame 4 can be in the shape of a plate, and the bottom of the motor is placed on the frame 4 and then fixed to the frame 4 by bolts, etc. Preferably, a receiving cavity is provided in the middle of the frame 4, and an opening is provided on at least one side of the receiving cavity close to the housing 1, for placing the motor and connecting the output shaft of the motor to the connecting piece. The size of the through hole 131 is based on the ability of the connecting piece to pass through. The material of the frame 4 is not further limited, and can be metal or wood. Preferably, a metal material is selected, such as stainless steel.

[0094] like Figure 1 and Fig.16 As shown, in a specific implementation, the outer wall of the shell 1 is covered with an end cover 5 to form a first end face, the end cover 5 is fitted with one end of at least two barrels 22, and a discharge port 11 is provided on the end cover 5, and the cross section of the end cover 5 is rectangular;

[0095] The four corners of the inner side of the end cover 5 are respectively provided with fixing columns 51 with first magnets, and the end of the discharge port 11 opposite to the inner side of the end cover 5 is provided with four limiting grooves 14 adapted to the four fixing columns 51;

[0096] Among them, four second magnets are arranged at positions of the outer wall of the shell 1 corresponding to the four limiting grooves 14 , and the four second magnets and the four first magnets work together to magnetically attract the end cover 5 to the shell 1 .

[0097] Specifically, the first end face 12 of the shell can be set as the end cover 5, which is convenient for the maintenance of the inside of the material placing mechanism 2, and is also beneficial to the filling of the product in the pilot stage. The end cover 5 can be movably connected to the shell 1 through a hinge. Preferably, the cross section of the end cover 5 is rectangular, and the four corners of the inner side of the end cover 5 are respectively provided with fixed columns 51, and each fixed column 51 can be provided with a first placement groove 511 around the side for placing the first magnet. The shell 1 is provided with a limiting groove 14 adapted to the four fixed columns 51 on the end opposite to the inner side of the end cover 5. The fixed column 51 and the limiting groove 14 work together to limit the end cover 5, so that the discharge port 11 after installation is directly opposite to one end of a barrel 22. Second placement grooves 15 can be respectively provided inside the four limiting grooves 14, and second magnets are respectively placed inside the four second placement grooves 15. The four second magnets and the four first magnets work together to magnetically attract the end cover 5 to the shell 1. Preferably, the four second placement grooves 15 are arranged on the outer wall of the shell 1 close to the four limiting grooves 14 to prevent the first magnet and the second magnet from being separated from the first placement groove 511 and / or the second placement groove 15 due to excessive mutual attraction.

[0098] like Figure 1-Figure 4 and Figure 11-Figure 15 As shown, in a specific implementation, it also includes:

[0099] A visual sensor 6, wherein the visual sensor 6 is disposed on the outer wall of the housing 1 and is used to collect an image of the plant and generate a first signal;

[0100] A distance sensor 7, wherein the distance sensor 7 is disposed on the outer wall of the housing 1, and a collecting end of the distance sensor 7 is oriented in the same direction as the discharge port 11, and is used to collect a straight-line distance between the distance sensor 7 and the plant, and generate a second signal;

[0101] A central controller, the central controller is respectively connected to the control unit 3, the visual sensor 6 and the distance sensor 7 by signals;

[0102] The central controller receives the first signal from the visual sensor 6 and the second signal from the distance sensor 7 , and controls the control unit 3 based on the first signal and the second signal to control the amount of fertilizer discharged from the discharge port 11 .

[0103] Specifically, the visual sensor 6 is fixedly mounted on the outer wall of the housing 1, and the collection end of the visual sensor 6 is aligned with the discharge port 11 to collect images of the plants. The specific structure of the visual sensor 6 is not further limited, and the visual sensor 6 in the prior art can be selected, which will not be described in detail.

[0104] The collecting end of the distance sensor 7 also needs to be in the same direction as the discharge port 11, and is used to collect the straight-line distance between the distance sensor 7 and the plant. The specific structure of the distance sensor 7 is not further limited, and a distance sensor 7 in the prior art can be selected, such as a photoelectric sensor or an ultrasonic sensor, etc., among which a small-range distance sensor 7 is preferred. Before use, the distance sensor 7 can be adjusted to zero from the discharge port 11.

[0105] The central controller is used to receive the first signal of the visual sensor 6 and the second signal of the distance sensor 7. The specific data algorithm of the internal module of the hollow controller can use the algorithm in the prior art, and the specific control process is as follows:

[0106] First, determine whether the collected plants need to be fertilized and the amount of fertilizer required through the first signal of the visual sensor 6;

[0107] Secondly, by pre-setting the fertilization distance in advance, for example, adjusting the fertilization distance to 5 cm, the distance between the discharge port 11 and the plant to be fertilized is appropriately adjusted. When the distance between the plant to be fertilized and the discharge port 11 is within 5 cm, the barrel 22 rotates and fertilization is carried out.

[0108] The central controller can determine the amount of fertilizer to be applied based on the images of the growth status of different plants collected by the visual sensor 6. At the same time, when the distance measured by the distance sensor 7 is within the preset range, the control unit 3 is controlled to rotate and apply fertilizer. This avoids the situation where inaccurate feeding is caused by the inability to determine the spatial position of the plant. The two cooperate with the central controller to achieve accurate fertilizer application.

[0109] It should be noted that before the fertilizer applicator is used, no fertilizer needs to be added into the barrel 22 opposite to the discharge port 11 in the original state.

[0110] like Figure 1 As shown, in a specific implementation, it also includes:

[0111] Two first support plates 8, the two first support plates 8 are arranged in parallel and at intervals on the outer wall of the housing 1, the visual sensor 6 is arranged between the two first support plates 8, and the visual sensor 6 is rotatably connected to the two first support plates 8;

[0112] The second support plate 9 is straddled on the other side of the two first support plates 8 opposite to the side connected to the shell, and the distance sensor 7 is fixedly mounted on the second support plate 9 .

[0113] Specifically, the specific position of the visual sensor 6 is not further limited, as long as it can be guaranteed that it can capture the image of the plant. Preferably, two first support plates 8 are arranged in parallel and spaced apart on the side wall of the shell 1, and the visual sensor 6 is arranged between the two first support plates 8 and is threadedly connected to the two support plates. In the process of collecting images, the angle of the visual sensor 6 can be appropriately adjusted to collect images of plants at different heights. The second support plate 9 is arranged on the other side of the shell 1 opposite to the side connected to the first support plate 8, so that the overall structure is more compact. It should be noted that the outer wall of the shell 1 of the fertilizer feeding device of the present application is also provided with a mounting portion, and the mounting portion is provided with a mounting hole for connecting to a robot. During use, the angle of the visual sensor 6 can be adjusted by the robot's mechanical arm, which is more convenient to use.

[0114] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A fertilizer feeding device, characterized in that: include: A housing, wherein the housing has an accommodating space inside; A material placing mechanism, the material placing mechanism is arranged in the accommodating space, the material placing mechanism comprises a connector and at least two material barrels, at least two material barrels are evenly spaced and arranged on the connector along a circumferential track, and one end of at least two material barrels is in contact with the first end surface of the shell; the connector is an annular plate body, and the outer wall of the connector is in clearance with the inner wall of the accommodating space; A control unit, the control unit is connected to the housing, the control unit is connected to a side of the material placing mechanism away from the first end surface of the housing, and the control unit can drive the material placing mechanism to rotate around the central axis of the circular trajectory of the barrel arrangement as an axis; The first end surface of the shell is provided with a discharge port, and the control unit controls the material placement mechanism to rotate so that one end of at least two of the barrels is aligned with the discharge port in sequence; One end of the barrel is open, and the other end of the barrel is closed; the outer wall of the shell is covered with an end cover to form a first end face, the end cover is fitted with one end of at least two of the barrels, the end cover is provided with a discharge port, and the cross section of the end cover is rectangular; The four corners of the inner side of the end cover are respectively provided with fixing columns with first magnets, and the end of the shell opposite to the inner side of the end cover is provided with four limiting grooves adapted to the four fixing columns; Among them, four second magnets are arranged at positions of the outer wall of the shell corresponding to the four limiting grooves, and the four second magnets and the four first magnets work together to magnetically attract the end cover to the shell.

2. The fertilizer feeding device according to claim 1, characterized in that: At least two fixing holes are evenly spaced around the inner ring on the connector, and at least two barrels pass through the fixing holes respectively and are connected to the fixing holes.

3. The fertilizer feeding device according to claim 2, characterized in that: The material placing mechanism comprises three connectors, and the three connectors are respectively connected to both ends and the middle of at least two material barrels.

4. The fertilizer feeding device according to claim 1, characterized in that: The control unit comprises: A transmission part, the transmission part is fixedly connected to a side of the material placing mechanism away from the first end surface of the shell; A motor is arranged on the housing, and a driving shaft of the motor is connected to the transmission part, and is used to control the rotation of the transmission part to drive the material placing mechanism to rotate.

5. The fertilizer feeding device according to claim 4, characterized in that: The transmission part comprises: A first base, the first base is fixedly connected to the connector, and a first fixing groove is provided on a side of the first base facing away from the first end surface of the shell; A first connecting member, wherein one end of the first connecting member is provided with a first protrusion adapted to the first fixing groove, and the other end of the first connecting member is provided with a first connecting hole; Wherein, the driving shaft of the motor is connected to the first connecting hole, and is used to control the rotation of the first connecting member to drive the first base, the connector and at least two of the barrels to rotate in sequence.

6. The fertilizer feeding device according to claim 4, characterized in that: The transmission part comprises: A second base, the second base is fixedly connected to the other ends of at least two of the barrels, and a second fixing groove is provided on a side of the second base facing away from the first end surface of the shell; A second connecting member, wherein one end of the second connecting member is provided with a second protrusion adapted to the second fixing groove, and the other end of the second connecting member is provided with a second connecting hole; Wherein, the driving shaft of the motor is connected to the second connecting hole, and is used to control the rotation of the second connecting member to drive the second base and at least two of the barrels to rotate in turn.

7. The fertilizer feeding device according to claim 6, characterized in that: Also includes: A frame, the frame being arranged on a second end face of the shell opposite to the first end face and located outside the accommodating space of the shell, and the motor being fixedly mounted on the frame; A through hole is provided on the second end surface of the shell, and the second connecting member passes through two ends of the through hole and is respectively connected to the second base and the motor.

8. The fertilizer feeding device according to any one of claims 1 to 7, characterized in that: Also includes: A visual sensor, the visual sensor being disposed on an outer wall of the housing and configured to collect an image of the plant and generate a first signal; A distance sensor, wherein the distance sensor is disposed on the outer wall of the housing, and a collecting end of the distance sensor is oriented in the same direction as the discharge port, and is used to collect a straight-line distance between the distance sensor and the plant and generate a second signal; A central controller, wherein the central controller is respectively connected to the control unit, the visual sensor and the distance sensor signals; The central controller receives the first signal of the visual sensor and the second signal of the distance sensor, and controls the control unit based on the first signal and the second signal to control the amount of fertilizer discharged from the discharge port.

9. The fertilizer feeding device according to claim 8, characterized in that: Also includes: Two first support plates, the two first support plates are arranged in parallel and at intervals on the outer wall of the shell, the visual sensor is arranged between the two first support plates, and the visual sensor is rotatably connected to the two first support plates; A second support plate is arranged across the other side of the two first support plates opposite to the side connected to the shell, and the distance sensor is fixedly arranged on the second support plate.

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