Spreading devices and plant protection equipment

Abstract

The present invention relates to the technical field of plant protection equipment, and specifically discloses a scattering device and a plant protection equipment. The scattering device includes a shell, a scattering assembly and a driving mechanism for driving the scattering assembly to rotate, and the shell is provided with a first material outlet; the scattering assembly is arranged in the shell, and includes a material container and a spiral blade, and a material inlet and a second material outlet both connected to the accommodating chamber are arranged at intervals on the material container, and the material conveying direction is the direction from the material inlet to the second material outlet; the material container can be rotated to a position where the second material outlet is connected to the first material outlet. The material gradually moves toward the side where the second material outlet is located along the extension of the spiral blade, and when the second material outlet is arranged opposite to the first material outlet, the material is thrown out. The scattering device of the present invention has a simple structure, and the scattering amount can be precisely controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of plant protection equipment, and in particular to a spreading device and plant protection equipment. Background Art

[0002] As the control technology of unmanned equipment gradually matures, unmanned equipment has begun to be used in agricultural production, responsible for various stages such as farming and harvesting. Among them, the spreading device installed on the unmanned equipment greatly improves the operating efficiency while ensuring the operating effect, and is widely used in the spreading of seeds, fertilizers, pesticides, fish and shrimp feed, etc. The spreading device in the existing technology has low control accuracy on the spreading amount and cannot meet user needs. Summary of the invention

[0003] The object of the present invention is to provide a spreading device and a plant protection equipment, which have a simple structure and high spreading accuracy.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] In a first aspect, a scattering device is provided, comprising:

[0006] The housing is provided with a first material outlet;

[0007] A scattering assembly is rotatably disposed in the housing, the scattering assembly comprises a material container and a spiral blade, the material container has a containing cavity, the spiral blade is spirally wound on the inner wall of the material container along the material conveying direction, a material inlet and a second material outlet are arranged on the material container at intervals, the material conveying direction is the direction from the material inlet to the second material outlet, the material inlet and the second material outlet are both connected to the containing cavity; the material container can be rotated to a position where the second material outlet is connected to the first material outlet;

[0008] The driving mechanism is connected to the scattering assembly to drive the scattering assembly to rotate along a fixed axis.

[0009] As a preferred solution of the spreading device, the cross-sectional area of ​​the accommodating cavity gradually increases along the material conveying direction.

[0010] As a preferred solution of the spreading device, the cross-sectional area of ​​the accommodating cavity is consistent along the material conveying direction.

[0011] As a preferred solution of the spreading device, an intermediate shaft is arranged at the center axis position of the material container, one end of the spiral blade is in close contact with the inner wall of the material container, and the other end is in close contact with the intermediate shaft.

[0012] As a preferred solution of the spreading device, the inner wall of the shell is further provided with a retaining ring for resisting the material, and the retaining ring is provided with a third material outlet, and the third material outlet is arranged opposite to the first material outlet.

[0013] As a preferred solution of the spreading device, the retaining ring includes a retaining ring body and a plurality of flexible protrusions, wherein the plurality of flexible protrusions are arranged at intervals on the inner wall of the retaining ring body; the retaining ring body is connected to the inner wall of the outer shell, and the flexible protrusions abut against the outer wall of the material container.

[0014] As a preferred solution of the spreading device, the second material outlet is provided with a material guide plate, the length of the material guide plate extends along the radial direction of the accommodating cavity, and the material guide plate is located inside the accommodating cavity.

[0015] As a preferred solution of the spreading device, a hollow guide cylinder is provided at the first material outlet, the first end of the guide cylinder is connected to the outer wall of the shell, the second end of the guide cylinder is suspended outside the shell, and the first end is arranged opposite to the second end.

[0016] As a preferred solution of the spreading device, the axis of the guide cylinder is arranged at an acute angle to the horizontal plane, and the first end is lower than the second end.

[0017] As a preferred solution of the spreading device, at least two arc-shaped plates are evenly distributed in an annular manner on the inner wall of the guide cylinder.

[0018] As a preferred solution of the spreading device, the housing and the spreading assembly are connected via a bearing.

[0019] As a preferred solution of the spreading device, the material inlet is arranged on an end surface of one end of the material container, and the spreading device is further provided with a feed pipe, one end of which is located outside the shell and the other end is connected to the material inlet.

[0020] As a preferred solution of the spreading device, a first cover plate is provided on the end surface of the shell adjacent to the material inlet, and the feed pipe is provided on the first cover plate.

[0021] As a preferred solution of the spreading device, the shell includes a first group and a second group connected, the driving mechanism is accommodated in the second group, the material container is accommodated in the first group and the second group, or the material container is accommodated in the first group.

[0022] As a preferred solution of the spreading device, the first material outlet is arranged on the first group section or the second group section; or a rear half groove is opened on the first group section, and a front half groove is opened on the second group section, and the rear half groove and the front half groove form the first material outlet.

[0023] In a second aspect, a plant protection device is provided, comprising the above-mentioned spreading device.

[0024] Beneficial effects of the present invention:

[0025] During the rotation of the scattering component, the material is mainly distributed near the inner wall of the material container under the action of centrifugal force. Due to the guiding effect of the spiral blade, the material gradually moves toward the side where the second material outlet is located along the extension of the spiral blade. When the material moves to the second material outlet of the material container, and the second material outlet is arranged opposite to the first material outlet, the material is thrown out. The amount of material propulsion per unit time is accurately determined by the pitch of the spiral blade. The larger the pitch, the greater the amount of material propulsion per unit time; and vice versa. Since the scattering component is driven to rotate by the driving mechanism, the rotation speed of the scattering component is accurately controlled, and the time when the first material outlet and the second material outlet are arranged opposite to each other is always the same. Therefore, the total amount of material scattered each time the first material outlet and the second material outlet are arranged opposite to each other is the same. Therefore, the present invention achieves the purpose of accurately controlling the scattering amount through a rotary scattering component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a scattering device provided in an embodiment of the present invention;

[0027] Figure 2 is an exploded schematic diagram of a scattering device provided in an embodiment of the present invention;

[0028] Figure 3 is a schematic structural diagram of a scattering assembly provided in an embodiment of the present invention;

[0029] Figure 4 yes Figure 3 Sectional view along CC direction;

[0030] Figure 5 yes Figure 2 A partial enlarged view of the middle A;

[0031] Figure 6 yes Figure 1 A partial enlarged view of point B in the middle;

[0032] Figure 7 is a schematic structural diagram of another scattering device provided by an embodiment of the present invention;

[0033] Figure 8 yes Figure 7 Side view of the mid-spreading device;

[0034] Fig. 9 yes Figure 8 Cross-sectional view along DD direction.

[0035] In the figure:

[0036] 1. Shell;

[0037] 11. first material outlet; 111. guide cylinder; 112. arc plate;

[0038] 12, cylinder; 121, second section; 122, middle section; 123, first section;

[0039] 13. First cover plate; 14. Second cover plate; 15. Fixed shaft;

[0040] 2. scattering assembly; 21. material container; 22. spiral sheet; 23. second material outlet; 24. accommodating chamber; 25. material guide plate; 26. intermediate shaft;

[0041] 3. retaining ring; 31. retaining ring body; 32. flexible protrusion; 33. third material outlet;

[0042] 4. driving mechanism; 41. driving plate; 42. driving member;

[0043] 5. Bearings;

[0044] 6. Feed pipe; 61. Upper pipe body; 62. Lower pipe body;

[0045] 7. Support mechanism; 71. Bracket; 72. Bottom plate. DETAILED DESCRIPTION

[0046] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It is also necessary to explain that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all.

[0047] Some directional words are defined in the present invention. Unless otherwise specified, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used to facilitate understanding and therefore do not constitute a limitation on the scope of protection of the present invention.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] An embodiment of the present invention provides a spreading device for connecting to plant protection equipment such as a drone, an agricultural tractor, etc. to spread materials, wherein the materials may be granular plant seeds, agricultural fertilizers, agricultural drugs, and other substances.

[0051] like Figure 1 and Figure 2 As shown, the scattering device provided in this embodiment includes a housing 1, a scattering assembly 2 and a driving mechanism 4. The driving mechanism 4 is connected to the scattering assembly 2 and is used to drive the scattering assembly 2 to rotate along a fixed axis. The housing 1 is used to accommodate and support the scattering assembly 2 so that the scattering assembly 2 can be installed on the plant protection equipment.

[0052] The spreading device further includes a supporting mechanism 7, which includes two brackets 71 and a bottom plate 72. The bottom plate 72 is fixed to the plant protection device, the lower ends of the two brackets 71 are connected to the bottom plate 72, and the upper ends of the two brackets 71 are respectively connected to the two ends of the housing 1 to support the housing 1. Of course, in other embodiments, the supporting mechanism 7 can also be in other forms, which are not specifically limited here.

[0053] In order to continuously provide materials for the scattering assembly 2, the scattering device also includes a feed pipe 6. Preferably, the feed pipe 6 includes an upper tube body 61 and a lower tube body 62 connected up and down, and the upper tube body 61 and the lower tube body 62 are connected at an obtuse angle, so that the inner walls of the upper tube body 61 and the lower tube body 62 are smoothly connected. The upper tube body 61 can be arranged vertically, and the upper tube body 61 can also be a funnel-shaped structure for convenient material discharge. The lower cylinder 12 is arranged at an angle to facilitate the flow of materials into the scattering assembly 2.

[0054] like Figure 2 As shown, the housing 1 includes a cylinder 12 with front and rear openings, a first cover plate 13, and a second cover plate 14. The first cover plate 13 is fixed to the rear end of the cylinder 12, and the second cover plate 14 is fixed to the front end of the cylinder 12. Preferably, a step portion is provided near the rear end of the cylinder 12, and the step portion can be used to position the first cover plate 13, and the first cover plate 13 abuts against the step portion. The feed pipe 6 is fixed to the middle of the first cover plate 13, and one end of the feed pipe 6 is passed through the first cover plate 13 and communicated with the scattering assembly 2.

[0055] The cylinder 12 is preferably a cylinder, and the first cover plate 13 and the second cover plate 14 are circular plates. Of course, the cylinder 12 can also be other shapes such as a cuboid, a hexagonal prism, etc., and the first cover plate 13 and the second cover plate 14 can change their shapes accordingly and cover the opening of the cylinder 12, and no specific limitation is made here.

[0056] For the convenience of processing, the cylinder 12 includes a first group of segments and a second section 121 connected to each other. Preferably, in order to facilitate the manufacture of the first group of segments, the first group of segments includes a first section 123 and a middle section 122, wherein the first section 123, the middle section 122 and the second section 121 are connected in sequence. The first cover plate 13 is covered at the rear end of the first section 123, the second cover plate 14 is covered at the front end of the second section 121, and the drive mechanism 4 is fixed on the second cover plate 14 and accommodated in the second section 121. Preferably, one bracket 71 is integrally formed with the first group of segments, and the other bracket 71 is integrally formed with the second section 121 to improve the installation efficiency of the scattering device. Furthermore, the bracket 71 is integrally formed with the first section 123. Of course, in other embodiments, the bracket 71 and the first section 123 and the second section 121 can also be connected by connecting members or other methods such as interference fit, which are not specifically limited here.

[0057] Preferably, the driving mechanism 4 includes a driving plate 41 and a driving member 42. The driving member 42 can be a motor, etc. The driving member 42 is fixed on the second cover plate 14, the output shaft of the driving member 42 is fixedly connected to the driving plate 41, the driving plate 41 is fixed to the scattering assembly 2, and the driving member 42 drives the scattering assembly 2 to rotate through the driving plate 41.

[0058] In this embodiment, in order to allow the material in the scattering assembly 2 to be scattered from the housing 1, the housing 1 is provided with a first material outlet 11. Preferably, the front end of the middle section 122 of the first group of segments is provided with a rear half groove, and the rear end of the second section 121 is provided with a front half groove. After the middle section 122 and the first section 123 are connected, the rear half groove and the front half groove form the first material outlet 11. This form of the first material outlet 11 is easy to process. At this time, the material container 21 is accommodated in the first group of segments and the second section 121. Of course, in other embodiments, the first material outlet 11 can also be all opened in the first group of segments or all opened in the second section 121. In this case, the material container 21 is accommodated in the first group of segments.

[0059] like Figure 1 and Figure 2 As shown, the scattering assembly 2 is rotatably disposed in the housing 1. Figure 2 As shown, preferably, in order to improve the rotational stability of the scattering assembly 2, the housing 1 and the scattering assembly 2 are connected by a bearing 5. In this embodiment, an annular support plate is provided in the first section 123 of the housing 1, and a plurality of fixed shafts 15 are provided on one side of the annular support plate close to the first cover plate 13, such as two, three, four or more fixed shafts 15 can be evenly distributed along the circumference of the annular support plate. A bearing 5 is provided outside each fixed shaft 15, and a plurality of bearings 5 ​​form an installation space, and the scattering assembly 2 is arranged in the installation space and abuts against the outer ring of the bearing 5. The setting of the bearing 5 converts the sliding friction between the scattering assembly 2 and the housing 1 into rolling friction, reduces the friction between the two, reduces the driving force of the driving mechanism 4, and improves the stability of the scattering assembly 2.

[0060] Of course, in other embodiments, only one bearing may be provided, the inner ring of the bearing is sleeved outside the scattering assembly 2, and the outer ring of the bearing is connected to the inner wall of the housing 1, so as to achieve relative rotation between the housing 1 and the scattering assembly 2.

[0061] like Figure 3 and Figure 4 As shown, the scattering assembly 2 includes a material container 21 and a spiral blade 22, the material container 21 has a receiving chamber 24, and the spiral blade 22 is spirally wound on the inner wall of the material container 21 along the material conveying direction. The receiving chamber 24 is mainly used to receive the material, and the spiral blade 22 is used to guide the material. Specifically, the spiral blade 22 is arranged on the inner wall of the material container 21, such as the spiral blade 22 can be connected to the inner wall of the material container 21 by welding or screw connection; the material container 21 and the spiral blade 22 can also be integrally formed by injection molding or the like; the scattering assembly 2 can also be divided into two symmetrical parts along its axis, and the two parts are fixedly connected by welding or connecting parts, etc., which is not specifically limited here.

[0062] like Figure 2 and Figure 4As shown, a material inlet and a second material outlet 23 are provided on the material container 21 at intervals, and both the material inlet and the second material outlet 23 are connected to the accommodating chamber 24. The material container 21 can be rotated to a position where the second material outlet 23 is connected to the first material outlet 11. It can be understood that the material conveying direction is the direction from the material inlet to the second material outlet 23.

[0063] Preferably, the material inlet is arranged on the end surface of one end of the material container 21, one end of the feed pipe 6 is located outside the housing 1, and the other end is connected to the material inlet to introduce the material into the accommodating chamber 24. Preferably, the first cover plate 13 is arranged on the end surface adjacent to the material inlet, such as one end of the cylinder 12 is the material inlet, and the first cover plate 13 is arranged to cover the material inlet.

[0064] It can be understood that one end of the material container 21 is the feed end and the other end is the discharge end. The material container 21 and the spiral sheet 22 extend from the feed end of the material container 21 to the discharge end. The feed pipe 6 is connected to the feed end of the material container 21, and the second material outlet 23 is opened at the discharge end.

[0065] During the rotation of the scattering assembly 2, the material is mainly distributed near the inner wall of the material container 21 under the action of centrifugal force. Due to the guiding effect of the spiral blade 22, the material gradually moves toward the side where the second material outlet 23 is located along the extension of the spiral blade 22. When the material moves to the second material outlet 23 of the material container 21, and the second material outlet 23 is arranged opposite to the first material outlet 11, the material is thrown out. The amount of material pushed in a unit time is accurately determined by the pitch of the spiral blade 22. The larger the pitch, the greater the amount of material pushed in a unit time; and vice versa. Since the scattering assembly 2 is driven to rotate by the driving mechanism 4, the rotation speed of the scattering assembly 2 is accurately controlled, and the time when the first material outlet 11 and the second material outlet 23 are arranged opposite to each other is always the same. Therefore, the total amount of material scattered each time the first material outlet 11 and the second material outlet 23 are arranged opposite to each other is the same. Therefore, this embodiment achieves the purpose of accurately controlling the scattering amount through the rotary scattering assembly 2.

[0066] Preferably, the cross-sectional area of ​​the accommodating chamber 24 gradually increases along the conveying direction of the material, such as the accommodating chamber 24 is a conical structure. In the process of the material gradually moving from the feeding end to the discharging end, the centrifugal force gradually increases, and the linear velocity becomes larger and larger. Therefore, the structure of the accommodating chamber 24 helps to increase the initial velocity of the material when it flies out. Of course, in other embodiments, the cross-sectional area of ​​the accommodating chamber 24 can also be consistent along the conveying direction of the material.

[0067] Preferably, the material container 21 is a conical structure, thereby forming a conical accommodating cavity 24. Of course, in other embodiments, the outer wall of the material container 21 may form a cylindrical structure, and the inner wall may form a conical structure, that is, the wall thickness of the material container 21 gradually decreases from the feed end to the discharge end. The material container 21 may also be other structures, as long as a conical accommodating cavity 24 is provided.

[0068] like Figure 4 and Figure 5 As shown, preferably, in order to further increase the speed of the material when it flies out, the second material outlet 23 is provided with a guide plate 25, the length of which extends along the radial direction of the accommodating cavity 24, and the guide plate 25 is located inside the accommodating cavity 24. After the material moves to the end of the spiral plate 22, it is guided by the guide plate 25, and the moving direction of the material changes from the spiral direction of the spiral plate 22 to the tangential direction, so that the linear speed of the material to be flown out is further increased, thereby increasing the scattering range of the material.

[0069] like Figure 1 and Figure 6 As shown, preferably, a hollow guide cylinder 111 is provided at the first material outlet 11, and the guide cylinder 111 can guide the material to optimize the material scattering range. The first end of the guide cylinder 111 is connected to the outer wall of the housing 1, and the second end of the guide cylinder 111 is suspended outside the housing 1. It can be understood that the first end and the second end are arranged opposite to each other.

[0070] Furthermore, the guide cylinder 111 is arranged at an acute angle to the horizontal plane, and the first end is lower than the second end. The movement trajectory of the material is a parabola, and the inclined guide cylinder 111 can increase the height of the vertex of the parabola, increase the retention time of the material in the air, increase the material scattering distance, and thus expand the material scattering range. The guide cylinder 111 can be a cylinder, a rectangular cylinder, or other polyhedron cylinder, as long as it can guide the material.

[0071] In this embodiment, the guide cylinder 111 is formed by two semi-circular arc plates, one of which is connected to the rear half groove, and the other is connected to the front half groove. After the middle section 122 and the first section 123 are connected, the two semi-circular arc plates are spliced ​​to form the first material outlet 11. In other embodiments, the guide cylinder 111 may not be arranged to be tilted upward, but the structure of the guide cylinder 111 is trumpet-shaped, and the small-section end of the guide cylinder 111 is connected to the housing 1.

[0072] like Figure 6As shown, two arc plates 112 are evenly distributed on the inner wall of the guide cylinder 111. Preferably, both arc plates 112 are bent downward, and the inner side of the arc plates 112 faces downward. The arc plates 112 can change and reduce the movement direction and speed of some materials. If the arc plates 112 are not provided, all materials will fly out at the maximum speed, and only a small amount of materials will fall in the area close to the material outlet 11, resulting in uneven distribution of materials falling on the ground. After the arc plates 112 are provided, some materials will collide with the arc plates 112, and the materials that collide with the arc plates 112 will rebound and fall or fly out along the arc of the lower surface of the arc plates 112 and fall closer. From the distribution of the scattering area, the material scattering can be made more uniform. Of course, in other embodiments, the number of arc plates 112 can be more than two, such as three, four or more, and the multiple arc plates 112 are evenly distributed in a ring on the inner wall of the guide cylinder 111, and the arc plates 112 can bend downward or upward or in other directions, as long as they can collide with part of the material and change the movement direction or speed of the material.

[0073] like Figure 2 As shown, in order to make the scattering assembly 2 easy to rotate, a distance is set between the scattering assembly 2 and the housing 1. When the scattering assembly 2 rotates to the point where the second material outlet 23 is not directly opposite to the first material outlet 11, in order to prevent the material from entering the housing 1 from the second material outlet 23, a retaining ring 3 for blocking the material is also set on the inner wall of the housing 1. The retaining ring 3 can fill the space between the scattering assembly 2 and the housing 1 and play a role in stopping the material. The retaining ring 3 is provided with a third material outlet 33, which is directly opposite to the first material outlet 11, so that when the scattering assembly 2 rotates to the point where the second material outlet 23 is directly opposite to the first material outlet 11, the material can be thrown out; otherwise, the material is blocked by the retaining ring 3 and remains inside the scattering assembly 2. Preferably, the first material outlet 11 is greater than or equal to the size of the third material outlet 33. When the rotation speed of the scattering assembly 2 is relatively high, the third material outlet 33 can expand the first material outlet 11, which is conducive to throwing out the material.

[0074] It is understandable that the width of the retaining ring 3 may be slightly larger than the width of the second material outlet 23, for example, 5 mm to 10 mm larger than the width of the second material outlet 23, so that the retaining ring 3 will not affect the rotation of the scattering assembly 2, but can also play the role of stopping the material.

[0075] Preferably, in order to further reduce the friction between the retaining ring 3 and the scattering assembly 2 and improve the smoothness of the rotation of the scattering assembly 2, the retaining ring 3 includes a retaining ring body 31 and a plurality of flexible protrusions 32, and the plurality of flexible protrusions 32 are arranged at intervals on the inner wall of the retaining ring body 31. The flexible protrusions 32 play a role in stopping the material. The flexible protrusions 32 are made of rubber or plastic, or can also be metal wires, which are not limited here. Optionally, the retaining ring body 31 is connected to the inner wall of the housing 1 to fix the retaining ring 3, and the flexible protrusions 32 abut against the outer wall of the material container 21, thereby playing a role in stopping the material.

[0076] The overall working principle of the scattering device provided in this embodiment is as follows: the material is introduced into the scattering assembly 2 from the feed pipe 6, and the linear velocity of the material is continuously increased during the rotation of the scattering assembly 2. When the material moves to the second material outlet 23 of the scattering assembly 2, and the second material outlet 23 is directly opposite to the first material outlet 11, the material is thrown out. The scattering distance of the material depends on the initial velocity of the material being thrown out and whether it collides with the arc plate 112. After being thrown out, the material falls to the ground under the action of gravity and air resistance and is evenly distributed.

[0077] The scattering device provided in this embodiment can accurately control the scattering amount in real time through the rotary scattering assembly 2 driven by the driving mechanism 4. At the same time, the scattering device abandons the pneumatic structure, and the first material outlet 11 and the second material outlet 23 structure throw the material out. The guide plate 25 and the guide cylinder 111 can greatly increase the scattering distance, and the arc plate 112 can greatly improve the uniformity of material scattering.

[0078] The present invention also provides a plant protection device, including a spreading device. The plant protection device provided in this embodiment can improve the accuracy of the material spreading amount. The plant protection equipment can also include an equipment body and a material box, and the material box is connected to the equipment body and communicated with the spreading device to provide materials for the spreading device. The plant protection equipment can be unmanned equipment such as a drone, or it can be equipment such as a tractor. For example, the spreading device can be connected to the unmanned equipment through a supporting mechanism 7. When the spreading device is installed on unmanned equipment such as a drone, the operating efficiency can be greatly improved.

[0079] In other embodiments, Figures 7 to 9 As shown, an intermediate shaft 26 is arranged at the center axis position of the material container 21, one end of the spiral blade 22 is in close contact with the inner wall of the material container 21, and the other end is in close contact with the intermediate shaft 26. It can be understood that the feed pipe 6 is connected with the space surrounded by the intermediate shaft 26 and the spiral blade 22, and the material spirally advances in the space surrounded by the intermediate shaft 26 and the spiral blade 22. The purpose of this design is to prevent the material at a higher position in the material container 21 from falling to a lower position of the material container 21 due to the small centrifugal force of the material when the rotation speed of the material container 21 is slow, and cannot be transported from the side where the material inlet is located to the second material outlet 23.

[0080] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A scattering device, characterized in that: include: The housing is provided with a first material outlet; A scattering assembly is rotatably disposed in the housing, the scattering assembly comprises a material container and a spiral blade, the material container has a containing cavity, the spiral blade is spirally wound on the inner wall of the material container along the material conveying direction, a material inlet and a second material outlet are arranged on the material container at intervals, the material conveying direction is the direction from the material inlet to the second material outlet, the material inlet and the second material outlet are both connected to the containing cavity; the material container can be rotated to a position where the second material outlet is connected to the first material outlet; A driving mechanism connected to the scattering assembly to drive the scattering assembly to rotate along a fixed axis; The cross-sectional area of ​​the accommodating cavity gradually increases along the material conveying direction; The second material outlet is provided with a material guide plate, the length of the material guide plate extends along the radial direction of the accommodating cavity, and the material guide plate is located inside the accommodating cavity; A hollow guide cylinder is provided at the first material outlet, a first end of the guide cylinder is connected to the outer wall of the shell, a second end of the guide cylinder is suspended outside the shell, and the first end is arranged opposite to the second end; The axis of the guide cylinder is arranged at an acute angle to the horizontal plane, and the first end is lower than the second end; At least two arc-shaped plates are evenly distributed on the inner wall of the guide cylinder.

2. The scattering device according to claim 1, characterized in that: The cross-sectional area of ​​the accommodating cavity is consistent along the material conveying direction.

3. The scattering device according to claim 1, characterized in that: An intermediate shaft is arranged at the center axis position of the material container, one end of the spiral sheet is in close contact with the inner wall of the material container, and the other end is in close contact with the intermediate shaft.

4. The scattering device according to claim 1, characterized in that: The inner wall of the shell is also provided with a retaining ring for resisting materials, and the retaining ring is provided with a third material outlet, and the third material outlet is arranged opposite to the first material outlet.

5. The scattering device according to claim 4, characterized in that: The retaining ring comprises a retaining ring body and a plurality of flexible protrusions, wherein the plurality of flexible protrusions are arranged at intervals on the inner wall of the retaining ring body; the retaining ring body is connected to the inner wall of the outer shell, and the flexible protrusions abut against the outer wall of the material container.

6. The scattering device according to claim 1, characterized in that: The housing and the scattering assembly are connected via a bearing.

7. The scattering device according to claim 1, characterized in that: The material inlet is arranged on an end surface of one end of the material container, and the scattering device is further provided with a feed pipe, one end of which is located outside the shell, and the other end is communicated with the material inlet.

8. The scattering device according to claim 7, characterized in that: A first cover plate is disposed on the end surface of the shell adjacent to the material inlet, and the feed pipe is disposed on the first cover plate.

9. The scattering device according to claim 1, characterized in that: The housing comprises a first group of sections and a second group of sections connected to each other, the driving mechanism is accommodated in the second group of sections, the material container is accommodated in the first group of sections and the second group of sections, or the material container is accommodated in the first group of sections.

10. The scattering device according to claim 9, characterized in that The first material outlet is arranged in the first group section or the second section; or The first group of sections is provided with a rear half groove, and the second group of sections is provided with a front half groove, and the rear half groove and the front half groove form the first material outlet.

11. A plant protection device, characterized in that: It comprises a scattering device as described in any one of claims 1 to 10.

Images