The application discloses a fertilizer outlet box with adjustable fertilizer outlet amount and a fertilizer application vehicle with adjustable fertilizer application amount

Abstract

The application belongs to the technical field of agricultural seeding and discloses a fertilizer outlet box with adjustable fertilizer outlet amount and a fertilizer applying vehicle with adjustable fertilizer applying amount. The fertilizer outlet box comprises a box body, a baffle assembly, a rotating main body, a stop block and an adjusting part. The baffle assembly is located in the box body to divide the internal cavity of the box body into a first cavity for placing fertilizer and a second cavity for communicating with the outside. The rotating main body is rotationally arranged in the box body, and a part of the circumferential wall of the rotating main body extends into the first cavity, and another part of the circumferential wall of the rotating main body extends into the second cavity. The circumferential wall of the rotating main body is provided with a first through hole, the stop block is slidingly arranged in the first through hole and forms a fertilizer taking hole together with the first through hole, the adjusting part is rotationally connected with the rotating main body, a first protrusion is protruded on the wall surface of the stop block facing the adjusting part, a first recess is recessed on the wall surface of the adjusting part facing the stop block, the first recess is in a spiral shape, and the first protrusion is inserted into the first recess. The adjusting part is rotated to drive the stop block to move along the axis direction of the first through hole, so that the fertilizer outlet amount is adjusted.

Description

Technical Field

[0001] This invention relates to the field of agricultural sowing technology, and in particular to a fertilizer dispenser with adjustable fertilizer output and a fertilizer applicator with adjustable fertilizer output. Background Technology

[0002] This invention relates to the field of agricultural machinery technology, specifically to an integrated sowing and fertilizing device for farmland operations, particularly suitable for the simultaneous application of precision sowing and granular fertilizer to crops such as grains and forage. Currently, common fertilizer applicators or integrated sowing and fertilizing machines mainly consist of a fertilizer tank, a fertilizer dispenser, a fertilizer delivery pipe, and a ground wheel drive mechanism. During operation, the ground wheel rolls with the vehicle body, transmitting power via a chain or gear to the outer grooved wheel or turntable inside the fertilizer dispenser, forcibly discharging the granular fertilizer from the fertilizer tank, which then falls into the seed furrow or onto the ground surface through the fertilizer delivery pipe. In actual field operations, farmers' fertilizer requirements per unit area vary significantly depending on the crop (e.g., wheat and corn), soil fertility conditions, or growth stage (basal fertilizer and topdressing).

[0003] Existing fertilizer discharge adjustment methods have significant limitations. Fixed grooved wheel structures cannot dynamically adjust the discharge rate during operation, while replacing the discharge disc requires stopping the machine, unloading fertilizer, and disassembling parts—a cumbersome and time-consuming process. Furthermore, traditional fertilizer dispensers lack intuitive quantitative adjustment mechanisms; operators rely solely on experience to manually adjust the control plate, making precise control of the discharge gap difficult and resulting in a significant deviation between the actual fertilizer output and agronomic requirements. This inability to adjust or the difficulty in adjusting the fertilizer output not only leads to fertilizer waste or nutrient deficiency but also directly affects crop emergence uniformity and final yield, severely hindering the refinement and efficiency of fertilization operations.

[0004] Therefore, there is an urgent need for a device with adjustable fertilizer output to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fertilizer dispenser box with adjustable fertilizer output and a fertilizer applicator with adjustable fertilizer output, which can conveniently adjust the fertilizer output.

[0006] To achieve this objective, the present invention adopts the following technical solution: This invention provides a fertilizer dispenser with adjustable fertilizer output, comprising: Box body; A baffle assembly is disposed inside the box and is capable of dividing the internal cavity of the box into a first cavity and a second cavity, wherein the first cavity is configured to hold fertilizer and the second cavity is connected to the outside. A rotating body is rotatably disposed within the internal cavity of the box body. A portion of the peripheral sidewall of the rotating body extends into the first cavity, and another portion extends into the second cavity. A first through hole is provided on the peripheral sidewall of the rotating body. A stop block is disposed inside the first through hole and together with the inner sidewall of the first through hole forms a fertilizer extraction hole. The stop block can move along the axial direction of the first through hole to adjust the depth of the fertilizer extraction hole. An adjusting component is rotatably connected to the rotating body. The stop block has a first protrusion protruding on its wall surface facing the adjusting component, and the adjusting component has a first groove recessed on its wall surface facing the stop block. The first groove is spiral-shaped with the rotation axis of the adjusting component as its center. The first protrusion is inserted into the first groove so that it moves along the axial direction of the first through hole under the rotation of the first groove.

[0007] Preferably, the rotating body has a mounting groove on its end face facing the adjusting member, and the adjusting member is accommodated in the mounting groove.

[0008] Preferably, the adjusting member has a second protrusion on the wall surface away from the rotating body.

[0009] Preferably, the fertilizer dispensing box with adjustable fertilizer output further includes: A limiting cover is fastened to the mounting groove to limit the adjusting member to be located inside the mounting groove, and the limiting cover is provided with a second through hole to expose the second protrusion.

[0010] Preferably, the baffle assembly includes a first baffle, a second baffle, and a flexible plate; One end of the first baffle is fixedly connected to the peripheral side wall of the box body, and the other end is in contact with the peripheral side wall of the rotating body; One end of the second baffle is fixedly connected to the peripheral wall of the box body, and the other end is fixedly connected to the flexible plate. The end of the flexible plate away from the second baffle contacts the peripheral wall of the rotating body to scrape off excess fertilizer during the process of the fertilizer extraction hole moving from the first cavity to the second cavity.

[0011] The present invention also provides a fertilizer applicator with adjustable fertilizer application rate, comprising: Central axis; The wheel rim is rotatably fitted onto the central shaft; The fertilizer dispensing box with adjustable fertilizer output described in the above invention is fixedly sleeved on the central shaft, and the rotation of the wheel ring can drive the rotating main body to rotate.

[0012] Preferably, the fertilizer applicator with adjustable fertilizer application rate also includes: A star gear is rotatably connected to the housing, the star gear is fixedly connected to the rotating body, and the rotation axis of the star gear coincides with the rotation axis of the rotating body; A protrusion is fixedly disposed on the wheel rim body and configured to rotate with the wheel rim body to drive the star gear to rotate.

[0013] Preferably, the wheel rim body is provided with a fertilizer cavity, the peripheral sidewall of the wheel rim body is provided with a fertilizer inlet communicating with the fertilizer cavity, the fertilizer outlet box is located in the fertilizer cavity, and the protrusion is provided on the end wall of the fertilizer cavity.

[0014] Preferably, a guide is provided on the inner side of the peripheral sidewall of the wheel rim, and the guide is configured to guide the fertilizer falling into the fertilizer chamber to the fertilizer inlet.

[0015] Preferably, the fertilizer applicator with adjustable fertilizer application rate also includes: A fertilizer feeding box is fixedly connected to the central shaft and communicates with the first cavity. The fertilizer feeding box is configured to deliver fertilizer to the first cavity.

[0016] The beneficial effects of this invention are: This invention provides a fertilizer dispensing box with adjustable fertilizer output. The dispensing box includes a box body, a baffle assembly, a rotating body, a stop block, and an adjusting component. The baffle assembly is disposed inside the box body and divides the internal cavity of the box body into a first cavity and a second cavity. The first cavity is configured to hold fertilizer, and the second cavity communicates with the outside. The rotating body is rotatably disposed within the internal cavity of the box body. A portion of the rotating body's peripheral wall extends into the first cavity, and another portion extends into the second cavity. A first through hole is provided on the peripheral wall of the rotating body. The stop block is disposed inside the first through hole and, together with the inner wall of the first through hole, forms a fertilizer extraction hole. The stop block can move along the axial direction of the first through hole to adjust the depth of the fertilizer extraction hole. The adjusting component is rotatably connected to the rotating body. A first protrusion is provided on the wall surface of the stop block facing the adjusting component, and a first groove is provided on the wall surface of the adjusting component facing the stop block. The first groove is spirally centered on the rotation axis of the adjusting component. The first protrusion is inserted into the first groove and moves along the axial direction of the first through hole under the rotation of the first groove. The rotation of the main body can drive the fertilizer-collecting hole to receive and contain fertilizer in the first cavity, and then move to the second cavity to release fertilizer to the outside to achieve fertilizer discharge; the rotation of the adjusting component can drive the stop block to move along the axis of the first through hole, thereby adjusting the depth of the fertilizer-collecting hole, thus realizing the adjustment of the fertilizer discharge amount. Attached Figure Description

[0017] Figure 1 This is a partial exploded view of the fertilizer truck with adjustable fertilizer application rate described in an embodiment of the present invention; Figure 2 This is a partial exploded view of the fertilizer dispensing box with adjustable fertilizer output as described in an embodiment of the present invention; Figure 3 This is a partial exploded view of the fertilizer discharging component described in an embodiment of the present invention; Figure 4 This is a schematic diagram of the adjusting member described in an embodiment of the present invention; Figure 5 This is a partial schematic diagram of the fertilizer discharging component described in an embodiment of the present invention; Figure 6 This is a partially exploded view of the star gear and rotating body described in an embodiment of the present invention; Figure 7 This is an example assembly diagram of the star gear and fertilizer outlet box according to an embodiment of the present invention; Figure 8 This is a partial schematic diagram of the fertilizer application vehicle with adjustable fertilizer application rate according to an embodiment of the present invention; Figure 9 This is a partial schematic diagram of the guide and wheel rim body according to an embodiment of the present invention; Figure 10 This is an exploded view of the guide component and wheel rim body according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the guide component described in an embodiment of the present invention.

[0018] In the picture: 1. Box body; 11. First cavity; 12. Second cavity; 2. Baffle assembly; 21. First baffle; 22. Second baffle; 23. Flexible plate; 3. Fertilizer dispensing assembly; 31. Rotating body; 311. First through hole; 312. Mounting groove; 32. Stop block; 321. First protrusion; 33. Adjusting component; 331. First groove; 332. Second protrusion; 34. Limiting cover; 341. Second through hole; 4. Central shaft; 5. Wheel rim body; 51. Fertilizer filling chamber; 52. Fertilizer inlet; 6. Star gear; 7. Protrusion; 8. Guide component; 9. Fertilizer box. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 11 As shown, this invention provides a fertilizer dispensing box with adjustable fertilizer output. Figures 1 to 4 The fertilizer dispensing box shown includes a box body 1, a baffle assembly 2, and a fertilizer dispensing assembly 3. The baffle assembly 2 is disposed inside the box body 1 and divides the internal cavity of the box body 1 into a first cavity 11 and a second cavity 12. The first cavity 11 is configured to hold fertilizer, and the second cavity 12 communicates with the outside. The fertilizer dispensing assembly 3 includes a rotating body 31, a stop block 32, and an adjusting component 33. The rotating body 31 is rotatably disposed within the internal cavity of the box body 1. A portion of the peripheral wall of the rotating body 31 extends into the first cavity 11, and another portion extends into the second cavity 12. A first through hole 311 is provided on the peripheral wall of the rotating body 31. The stop block 32 is disposed inside the first through hole 311 and, together with the inner wall of the first through hole 311, forms a fertilizer extraction hole. The stop block 32 can move along the axial direction of the first through hole 311 to adjust the depth of the fertilizer extraction hole. The adjusting member 33 is rotatably connected to the rotating body 31. A first protrusion 321 protrudes from the wall of the stop block 32 facing the adjusting member 33, and a first groove 331 is recessed from the wall of the adjusting member 33 facing the stop block 32. The first groove 331 is spiral-shaped around the rotation axis of the adjusting member 33. The first protrusion 321 is inserted into the first groove 331 and moves along the axis of the first through hole 311 under the rotation of the first groove 331. The rotation of the rotating body 31 causes the fertilizer-collecting hole to receive and contain fertilizer in the first cavity 11, then move to the second cavity 12 and release fertilizer to the outside. The rotation of the adjusting member 33 causes the stop block 32 to move along the axis of the first through hole 311, thereby adjusting the depth of the fertilizer-collecting hole and thus regulating the amount of fertilizer dispensed.

[0024] It is understandable that when the rotating body 31 rotates, it can drive the first through hole 311 to move between the first cavity 11 and the second cavity 12, thereby enabling the fertilizer extraction hole to receive and contain fertilizer in the first cavity 11. Then, the fertilizer extraction hole moves from the first cavity 11 to the second cavity 12, where it releases fertilizer to the outside to achieve fertilizer extraction. After releasing fertilizer, the second cavity 12 moves back to the first cavity 11 to receive and contain fertilizer, achieving a continuous cycle for fertilizer extraction. In terms of rotation adjustment, the first groove 331 can be rotated. Since the first protrusion 321 is inserted into the first groove 331 and the first protrusion 321 is accommodated in the first through hole 311, the rotation of the first groove 331 can drive the stop block 32 to move along the axial direction of the first through hole 311. Since the stop block 32 and the inner wall of the first through hole 311 together form a fertilizer extraction hole, the movement of the stop block 32 along the axial direction of the first through hole 311 can adjust the depth of the fertilizer extraction hole, and finally realize the adjustment of the fertilizer output.

[0025] Exemplarily, the box body 1 includes a bottom plate, a cover plate, and peripheral side plates. The box body 1 is generally a flattened cylinder, with the bottom plate and cover plate being the same circular plate shape, and the peripheral side plates being annular plates with notches. The notches on the peripheral side plates communicate with the second cavity 12, so that fertilizer released into the second cavity 12 can flow out of the box body 1 through the notches to achieve fertilizer dispensing. Multiple fertilizer dispensing holes are provided. Specifically, multiple first through holes 311 are provided along the circumferential direction, and each first through hole 311 is provided with a corresponding stop block 32 to cooperate in forming a fertilizer dispensing hole. The fertilizer dispensing holes are evenly arranged along the circumference to achieve uniform fertilizer dispensing. Each stop block 32 has a first protrusion 321 protruding from the wall surface facing the adjusting member 33, and the first protrusion 321 on each stop block 32 is inserted into the first groove 331.

[0026] Optionally, the rotating body 31 is also generally a flattened cylinder, and the rotation axis of the rotating body 31 is parallel to the axis of the box 1. The rotating body 31 is located between the first cavity 11 and the second cavity 12, such that a portion of the peripheral sidewall of the rotating body 31 extends into the first cavity 11 and another portion extends into the second cavity 12. Multiple first protrusions 321 are provided, each of which can be inserted into the first groove 331, thereby more stably driving the movement of the stop block 32. Specifically, multiple first protrusions 321 are spaced apart along the axial direction of the first through hole 311, and the multiple first protrusions 321 on each stop block 32 can be inserted into different turns of the spiral first groove 331. The adjusting member 33 is disc-shaped, and the first groove 331 is recessed into one end face of the adjusting member 33.

[0027] Furthermore, such as Figure 3As shown, a mounting groove 312 is provided on the end face of the rotating body 31 facing the adjusting member 33. The adjusting member 33 is accommodated in the mounting groove 312 to avoid the adjusting member 33 occupying too much space outside the rotating body 31, thereby reducing the volume of the fertilizer box. Specifically, the mounting groove 312 is cylindrical, and the axis of the mounting groove 312 coincides with the rotation axis of the adjusting member 33. A first connecting shaft is provided at the axis position of the mounting groove 312, and a first connecting hole is provided at the axis position of the adjusting member 33. The first connecting shaft is inserted into the first connecting hole with a clearance fit, so that the adjusting member 33 can rotate relative to the rotating body 31 around the first connecting shaft.

[0028] For example, the first through hole 311 is configured as a stepped hole, with the larger hole on the outer side and the smaller hole on the inner side. The stop block 32 includes a sliding part and a driving part. The outer diameter of the sliding part is larger than the outer diameter of the driving part. The peripheral sidewall of the sliding part fits against the inner sidewall of the larger hole in the stepped hole, so that the sliding part and the inner sidewall of the first through hole 311 together form a fertilizer extraction hole. The peripheral sidewall of the driving part is clearance-fitted with the inner sidewall of the smaller hole in the stepped hole, so that the driving part can move along the axial direction of the first through hole 311, thereby driving the sliding part to move along the axial direction of the first through hole 311 to adjust the depth of the fertilizer extraction hole. The smaller hole in the stepped hole extends into the mounting groove 312, so that at least a portion of the driving part can be exposed above the first through hole 311, allowing the first protrusion 321 to be inserted into the first groove 331 of the adjusting member 33. The first protrusion 321 is disposed on the wall surface of the driving part facing the adjusting member 33. The sliding part and the driving part are integrally formed.

[0029] Optionally, a second protrusion 332 is provided on the wall surface of the adjusting member 33 away from the rotating body 31, so that the user can rotate the adjusting member 33 by rotating the second protrusion 332, thereby improving the ease of operation.

[0030] Furthermore, the fertilizer dispenser also includes a limiting cover 34. The limiting cover 34 engages with the mounting groove 312 to confine the adjusting member 33 within the mounting groove 312, thereby preventing the first connecting hole of the adjusting member 33 from disengaging from the first connecting shaft and ensuring the rotational stability of the adjusting member 33. The limiting cover 34 is provided with a second through hole 341 to expose the second protrusion 332, preventing the user from being unable to operate and control the rotation of the adjusting member 33.

[0031] Furthermore, such as Figure 5As shown, the baffle assembly 2 includes a first baffle 21, a second baffle 22, and a flexible plate 23. One end of the first baffle 21 is fixedly connected to the peripheral wall of the box body 1, and the other end contacts the peripheral wall of the rotating body 31. One end of the second baffle 22 is fixedly connected to the peripheral wall of the box body 1, and the other end is fixedly connected to the flexible plate 23. The end of the flexible plate 23 away from the second baffle 22 contacts the peripheral wall of the rotating body 31. On the one hand, the first baffle 21, the second baffle 22, and the flexible plate 23 divide the internal cavity of the box body 1 into a first cavity 11 and a second cavity 12. Since the rotating body 31 is located between the first cavity 11 and the second cavity 12 and its two sides of its peripheral wall are in contact with the flexible plate 23 and the first baffle 21 respectively, the fertilizer in the first cavity 11 can only be transported through the fertilizer extraction hole and released in the second cavity 12 to achieve fertilizer dispensing. On the other hand, during the process of the fertilizer extraction hole containing fertilizer moving from the first cavity 11 to the second cavity 12, since the end of the flexible plate 23 away from the second baffle 22 is in contact with the peripheral wall of the rotating body 31, the flexible plate 23 can scrape off the excess fertilizer in the fertilizer extraction hole, thereby ensuring the accuracy of fertilizer dispensing.

[0032] For example, the baffle assembly 2 also includes an annular baffle. The inner diameter of the annular baffle is smaller than the outer diameter of the rotating body 31, and the outer diameter of the annular baffle is larger than the outer diameter of the rotating body 31. Two annular baffles are provided. The two annular baffles are disposed on the two end faces of the rotating body 31 and are coaxially arranged with the rotating body 31. With this arrangement, the annular baffles can block fertilizer, preventing fertilizer from leaking out from the gap between the rotating body 31 and the box 1, further ensuring the accuracy of fertilizer dispensing. Specifically, the two annular baffles are fixedly connected to the bottom plate and the cover plate of the box 1, respectively. With this arrangement, on the one hand, the annular baffle fixedly connected to the bottom plate of the box 1 can serve as an indicator for the installation of the rotating body 31; on the other hand, the annular baffle fixedly connected to the cover plate of the box 1 can avoid interfering with the installation of the rotating body 31.

[0033] Optionally, the flexible plate 23 may be made of rubber. The baffle assembly 2 also includes a fixing plate, which is fixedly connected to the second baffle 22 by bolts. The flexible plate 23 is clamped between the fixing plate and the second baffle 22 to fix the flexible plate 23 to one end of the second baffle 22 away from the side wall of the box body.

[0034] like Figures 6 to 8As shown, the present invention also provides a fertilizer applicator with adjustable fertilizer application rate. The fertilizer applicator includes a central shaft 4, a wheel rim 5, and a fertilizer dispensing box with adjustable fertilizer application rate as described in the above embodiment. The wheel rim 5 is rotatably mounted on the central shaft 4. When the fertilizer applicator moves on the ground, the friction between the wheel rim 5 and the ground causes the wheel rim 5 to rotate around the central shaft 4. The fertilizer dispensing box is fixedly mounted on the central shaft 4. Along the direction of gravity, the first cavity 11 is located above the second cavity 12. The fertilizer outlet of the fertilizer dispensing box (i.e., the connection port between the second cavity 12 and the outside, and the notch on the side plate around the box 1) faces the ground. When the fertilizer applicator moves on the ground, the fertilizer dispensing box will not rotate around the central shaft 4, ensuring that the fertilizer outlet of the fertilizer dispensing box (i.e., the connection port between the second cavity 12 and the outside, and the notch on the side plate around the box 1) always faces the ground, preventing the fertilizer in the fertilizer collection hole from being unable to be released into the second cavity 12 under the action of gravity. The rotation of the wheel rim 5 is further configured to drive the rotation of the main body 31, so that the fertilizer extraction hole can move between the first cavity 11 and the second cavity 12 under the drive of the rotation of the wheel rim 5 to realize fertilizer extraction and fertilizer discharge.

[0035] For example, the wheel rim body 5 can be a modular structure or a one-piece molded structure. In one specific embodiment, the wheel rim body is a modular structure, and the sowing spacing and fertilization spacing can be changed by changing the number of modules. This embodiment uses a modular design to assemble the wheel rim body, making its structure simple, easy to install, and convenient for replacing parts during later maintenance.

[0036] Furthermore, the aforementioned fertilizer applicator also includes a star gear 6 and a protrusion 7. The star gear 6 is rotatably connected to the housing 1. The star gear 6 is fixedly connected to the rotating body 31, and the rotation axis of the star gear 6 coincides with the rotation axis of the rotating body 31. The protrusion 7 is fixedly disposed on the wheel rim 5 and is configured to rotate with the wheel rim 5 to drive the star gear 6 to rotate. It can be understood that the rotation of the wheel rim 5 drives the protrusion 7 to rotate, the protrusion 7 drives the star gear 6 to rotate, and in turn drives the rotating body 31 to rotate, ultimately realizing the fertilization and fertilizer extraction from the fertilizer extraction hole.

[0037] For example, a fertilizer application chamber 51 is provided inside the wheel rim body 5, and a fertilizer application port 52 communicating with the fertilizer application chamber 51 is provided on the peripheral side wall of the wheel rim body 5. The fertilizer dispensing box is located inside the fertilizer application chamber 51, and the protrusion 7 is provided on the end wall of the fertilizer application chamber 51. With this configuration, the fertilizer dispensing box can be placed inside the wheel rim body 5, thereby reducing the volume of the fertilizer application vehicle.

[0038] Furthermore, a guide 8 is provided on the inner side of the peripheral wall of the wheel rim 5. The guide 8 is configured to guide the fertilizer falling into the fertilizer chamber 51 to the fertilizer inlet 52. It is understood that, since the wheel rim 5 rotates relative to the box 1, the fertilizer outlet of the box 1 and the fertilizer inlet 52 on the peripheral wall of the wheel rim 5 cannot be directly connected through pipes or the like. The fertilizer released from the fertilizer outlet of the box 1 will be scattered into the fertilizer chamber 51 under the action of gravity. If the guide 8 is not provided, the fertilizer released from the fertilizer outlet may be scattered onto the ground through different fertilizer inlets 52, which is not conducive to the precise control of the amount of fertilizer applied.

[0039] For example, a partition is provided on the peripheral sidewall of the wheel rim body 5, extending circumferentially to divide the peripheral sidewall of the wheel rim body 5 into a first part and a second part. A fertilizer inlet 52 is provided in the first part, and fertilizer released from the fertilizer outlet of the box body 1 falls into the second part. The guide member 8 includes a collection section and an outlet section, with the outlet section communicating between the collection section and the fertilizer inlet 52. The collection section is capable of collecting the fertilizer falling into the second part, and the fertilizer entering the collection section flows out of the wheel rim body 5 through the fertilizer inlet 52 after passing through the outlet section.

[0040] Specifically, the collecting section has a right-angled triangular prism-shaped cover, and the outlet section has a cuboid-shaped cover. One right-angled side of the collecting section is fitted to the outlet section, and a connecting channel is provided at this fitting position, linking the collecting section and the outlet section. The outlet section covers the first section with the fertilizer inlet 52, allowing the fertilizer inlet 52 to communicate with the internal cavity of the outlet section. A collecting port is provided on the other right-angled side of the collecting section, covering the second section axially, and the opening direction of the collecting port is parallel to the rotation direction of the wheel rim 5. When the fertilizer inlet 52 rotates from downward to upward, the fertilizer falling into the second section can enter the collecting section through the collecting port under the action of gravity. The fertilizer entering the collecting section is guided by the inclined side of the collecting section to flow towards the connecting channel and enter the internal cavity of the outlet section. The fertilizer entering the outlet section is constrained by the wall of the outlet section and stored in the internal cavity of the outlet section. After the fertilizer inlet 52 is rotated from upward to downward until it faces downward, the fertilizer stored in the internal cavity of the outlet flows out of the fertilizer inlet 52 under the action of gravity.

[0041] Furthermore, the aforementioned fertilizer applicator also includes a fertilizer dispensing box 9. The fertilizer dispensing box 9 is fixedly connected to the central shaft 4 and communicates with the first cavity 11. The fertilizer dispensing box 9 is configured to deliver fertilizer to the first cavity 11. Since the fertilizer outlet is located inside the wheel rim 5, if the fertilizer in the first cavity 11 of the fertilizer outlet is depleted, the wheel rim 5 must be disassembled to replenish the fertilizer. This invention, by providing the fertilizer dispensing box 9, allows the user to replenish fertilizer to the first cavity 11 through the fertilizer dispensing box 9, improving ease of use.

[0042] Furthermore, a duckbill-shaped seeding port is provided on the outer side of the peripheral wall of the wheel rim 5, and the duckbill-shaped seeding port is connected to the fertilizer inlet 52. A duckbill manipulator is also provided on the wheel rim 5 for controlling the opening and closing of the duckbill-shaped seeding port.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A fertilizer dispensing box with adjustable fertilizer output, characterized in that, include: + Box body (1); A baffle assembly (2) is disposed inside the box body (1) and is capable of dividing the internal cavity of the box body (1) into a first cavity (11) and a second cavity (12). The first cavity (11) is configured to hold fertilizer, and the second cavity (12) is connected to the outside. The rotating body (31) is rotatably disposed in the internal cavity of the box (1). A portion of the peripheral sidewall of the rotating body (31) extends into the first cavity (11) and another portion extends into the second cavity (12). A first through hole (311) is provided on the peripheral sidewall of the rotating body (31). A stop block (32) is disposed inside the first through hole (311) and forms a fertilizer extraction hole together with the inner sidewall of the first through hole (311). The stop block (32) can move along the axial direction of the first through hole (311) to adjust the depth of the fertilizer extraction hole. An adjusting member (33) is rotatably connected to the rotating body (31). The stop block (32) has a first protrusion (321) protruding on the wall surface facing the adjusting member (33). The adjusting member (33) has a first groove (331) recessed on the wall surface facing the stop block (32). The first groove (331) is spiral-shaped with the rotation axis of the adjusting member (33) as the center. The first protrusion (321) is inserted into the first groove (331) so that it moves along the axial direction of the first through hole (311) under the drive of the rotation of the first groove (331).

2. The fertilizer dispensing box with adjustable fertilizer output according to claim 1, characterized in that, The rotating body (31) has a mounting groove (312) on its end face facing the adjusting member (33), and the adjusting member (33) is accommodated in the mounting groove (312).

3. The fertilizer dispensing box with adjustable fertilizer dispensing capacity according to claim 2, characterized in that, The adjusting member (33) has a second protrusion (332) on its wall surface away from the rotating body (31).

4. The fertilizer dispensing box with adjustable fertilizer output according to claim 3, characterized in that, Also includes: The limiting cover (34) is fastened to the mounting groove (312) to limit the adjusting member (33) inside the mounting groove (312). The limiting cover (34) is provided with a second through hole (341) to expose the second protrusion (332).

5. The fertilizer dispensing box with adjustable fertilizer output according to claim 1, characterized in that, The baffle assembly (2) includes a first baffle (21), a second baffle (22) and a flexible plate (23); One end of the first baffle (21) is fixedly connected to the peripheral wall of the box body (1), and the other end is in contact with the peripheral wall of the rotating body (31); One end of the second baffle (22) is fixedly connected to the peripheral wall of the box body (1), and the other end is fixedly connected to the flexible plate (23). The end of the flexible plate (23) away from the second baffle (22) contacts the peripheral wall of the rotating body (31) to scrape off excess fertilizer during the process of the fertilizer extraction hole moving from the first cavity (11) to the second cavity (12).

6. A fertilizer applicator with adjustable fertilizer application rate, characterized in that, include: Central axis (4); The wheel rim body (5) is rotatably fitted onto the central shaft (4); The fertilizer dispensing box with adjustable fertilizer output according to any one of claims 1-5 is fixedly sleeved on the central shaft (4), and the rotation of the wheel ring body (5) can drive the rotating body (31) to rotate.

7. The fertilizer applicator with adjustable fertilizer application rate according to claim 6, characterized in that, include: A star gear (6) is rotatably connected to the housing (1), and the star gear (6) is fixedly connected to the rotating body (31) and the rotation axis of the star gear (6) coincides with the rotation axis of the rotating body (31). The protrusion (7) is fixedly disposed on the wheel rim body (5) and configured to rotate with the wheel rim body (5) to drive the star gear (6) to rotate.

8. The fertilizer applicator with adjustable fertilizer application rate according to claim 7, characterized in that, The wheel rim body (5) is provided with a fertilizer application chamber (51), and the circumferential sidewall of the wheel rim body (5) is provided with a fertilizer application port (52) communicating with the fertilizer application chamber (51). The fertilizer outlet box is located inside the fertilizer application chamber (51), and the protrusion (7) is provided on the end wall of the fertilizer application chamber (51).

9. The fertilizer applicator with adjustable fertilizer application rate according to any one of claims 8, characterized in that, A guide (8) is provided on the inner side of the peripheral sidewall of the wheel rim body (5), and the guide (8) is configured to guide the fertilizer falling into the fertilizer cavity (51) to the fertilizer inlet (52).

10. The fertilizer applicator with adjustable fertilizer application rate according to any one of claims 6-9, characterized in that, Also includes: The fertilizer feeding box (9) is fixedly connected to the central shaft (4) and communicates with the first cavity (11). The fertilizer feeding box (9) is configured to deliver fertilizer to the first cavity (11).

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