A fertilizer throwing device for paddy fields

Abstract

The utility model discloses a kind of fertilization throwing device for paddy field, comprising: travelling assembly, fertilizer throwing assembly and transmission assembly.The travelling assembly includes frame and wheel;The fertilizer throwing assembly includes fertilizer storage bin and centrifugal distributing disc, the fertilizer storage bin has fertilizer accommodating cavity, the fertilizer storage bin also has material outlet;The centrifugal distributing disc is located in the fertilizer accommodating cavity, and is pivoted in the fertilizer storage bin by vertical pivot shaft, the centrifugal distributing disc is equipped with multiple partitions, multiple the partitions are evenly distributed around the axis of the centrifugal distributing disc, and are all connected with the centrifugal distributing disc, to rotate around the axis of the centrifugal distributing disc following the centrifugal distributing disc;Two adjacent partitions and the inner wall of fertilizer accommodating cavity jointly constitute ration material outlet;The axle is connected with the vertical pivot shaft by the transmission assembly transmission.The device can automatically control fertilization uniformity, to improve fertilization uniformity.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a fertilizer application and spreading device for paddy fields. Background Technology

[0002] Traditional manual fertilization methods suffer from high labor intensity, low efficiency, and poor uniformity of fertilization, which can easily lead to uneven crop growth in the field, affecting the overall yield. Furthermore, it is difficult to achieve precise quantitative fertilization, resulting in fertilizer waste and environmental pollution.

[0003] Currently, the main fertilizer spreading devices used in paddy fields are centrifugal disc fertilizer spreaders that are tractor-tethered or suspended. These spreaders utilize the centrifugal force generated by the high-speed rotating spreader to spread the fertilizer, and have the advantages of a wide working width and high efficiency.

[0004] However, the uniformity of fertilizer application in existing fertilization and spreading devices used in paddy fields needs to be manually controlled, resulting in poor uniformity of fertilizer application. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a fertilizer application and spreading device for paddy fields, which can automatically control the uniformity of fertilizer application to improve the uniformity of fertilizer application.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A fertilizer spreading device for paddy fields, comprising:

[0008] A traveling assembly, the traveling assembly including a frame and wheels, the wheels being connected to the frame via axles;

[0009] A fertilizer dispensing assembly includes a fertilizer storage bin and a centrifugal dispensing disc. The fertilizer storage bin is mounted on the vehicle frame and has a fertilizer receiving cavity and a dispensing port, which are connected to the external environment and the fertilizer receiving cavity. The centrifugal dispensing disc is located inside the fertilizer receiving cavity and is pivotally connected to the fertilizer storage bin via a vertical pivot shaft. The centrifugal dispensing disc has multiple partitions, which are evenly distributed around the axis of the centrifugal dispensing disc and connected to it to rotate with the centrifugal dispensing disc around its axis. Two adjacent partitions and the inner wall of the fertilizer receiving cavity together form a metering dispensing cavity, and the multiple metering dispensing cavities are sequentially connected to the dispensing port.

[0010] A transmission assembly, wherein the axle is connected to the vertical pivot shaft via the transmission assembly.

[0011] Furthermore, the number of wheels is one, and the frame has a handlebar.

[0012] Furthermore, the handlebars are connected to at least two support legs, and the wheel is located between the two support legs.

[0013] Furthermore, the fertilizer spreading assembly includes a stirring element located within the fertilizer receiving cavity. The stirring element extends along gravity and is linked to the vertical pivot shaft to rotate with the vertical pivot shaft.

[0014] Furthermore, the stirring element extends spirally downwards along the direction of gravity.

[0015] Furthermore, the inlet of the fertilizer storage bin is located at the top of the fertilizer containing cavity.

[0016] Furthermore, the fertilizer storage bin includes a volume expansion section and a funnel section, which together form the fertilizer receiving cavity. The volume expansion section is located above the funnel section, and the horizontal cross-sectional inner contour of the funnel section gradually decreases along the direction of gravity. The centrifugal dispensing plate is located at the bottom of the funnel section.

[0017] Furthermore, the transmission assembly includes a driving pulley, a transmission belt, a driven pulley, a first helical gear, a horizontal pivot shaft, and a second helical gear; the driving pulley is sleeved on the axle, the driven pulley is sleeved on the horizontal pivot shaft, the first helical gear is sleeved on the horizontal pivot shaft, and the second helical gear is pivotally connected to the vertical pivot shaft; the axle, the driving pulley, the transmission belt, the driven pulley, the first helical gear, the horizontal pivot shaft, the second helical gear, and the vertical pivot shaft are sequentially connected for transmission.

[0018] Furthermore, the frame has a protective cover, and the first helical gear and the second helical gear are located inside the protective cover.

[0019] Furthermore, the vehicle frame includes a frame, multiple supporting diagonal rods, and a load-bearing platform; the frame is located below the load-bearing platform, and the frame supports the load-bearing platform via the multiple supporting diagonal rods; the fertilizer spreading assembly is installed on the load-bearing platform; the protective cover is installed on the load-bearing platform and supported by the load-bearing platform, the protective cover is located between the load-bearing platform and the frame, and the multiple supporting diagonal rods are distributed horizontally and circumferentially around the protective cover.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The traveling assembly includes a frame and wheels, with the wheels connected to the frame via axles; and the vertical pivot shaft is driven via a transmission assembly based on the axles. During use, when the traveling assembly is propelled forward, the transmission assembly converts the horizontal rotational motion of the traveling assembly into the vertical rotational motion of the vertical pivot shaft, which is pivotally connected to the centrifugal distributing disc. Therefore, simply driving the traveling assembly forward is sufficient to power the fertilizer spreading assembly, eliminating the need for additional power and reducing energy consumption.

[0022] 2. The fertilizer spreading assembly includes a fertilizer storage bin and a centrifugal distributing disc. The fertilizer storage bin is mounted on the vehicle frame and has a fertilizer containing cavity and a distributing port, which are connected to the external environment and the fertilizer containing cavity. The centrifugal distributing disc is located inside the fertilizer containing cavity and is pivotally connected to the fertilizer storage bin via a vertical pivot shaft. Therefore, the powder particles to be spread can be evenly distributed under the action of centrifugal force, effectively improving the uniformity of fertilization.

[0023] 3. The centrifugal dispensing disc is equipped with multiple partitions, which are evenly distributed around the axis of the centrifugal dispensing disc and connected to it to rotate with it around the axis. Adjacent partitions and the inner wall of the fertilizer containing cavity together form a quantitative dispensing chamber, which is sequentially connected to the dispensing port. The axle is connected to the vertical pivot shaft via a transmission assembly. The centrifugal dispensing disc is connected to the wheels via the transmission assembly, so that when the wheels travel the same distance, they drive the centrifugal dispensing disc to rotate by the same angle. This ensures that the quantitative dispensing chambers evenly distribute fertilizer to the target area each time, achieving uniform fertilization. Therefore, the amount of fertilizer dispensed each time can be controlled to be the same, eliminating the need for manual control of the dispensing uniformity.

[0024] 4. The fertilizer spreading assembly includes a stirring element located within the fertilizer receiving cavity. The stirring element extends along gravity and is linked to the vertical pivot shaft to rotate with it. Furthermore, the stirring element extends spirally downwards along the direction of gravity. Therefore, the stirring element prevents damp, clump-forming fertilizer from clogging the fertilizer receiving cavity and affecting spreading efficiency. Simultaneously, it forces the fertilizer within the receiving cavity to maintain a constant amount of fertilizer falling into the metering spreading cavity, thus improving spreading uniformity.

[0025] 5. The fertilizer storage bin's inlet is located at the top of the fertilizer receiving cavity. This avoids spillage problems that may occur with lateral feeding, improving replenishment efficiency and operational safety. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the structure of a fertilizer application and spreading device for paddy fields according to the present invention;

[0027] Figure 2 for Figure 1 A sectional view.

[0028] In the diagram: 1. Traveling assembly; 11. Frame; 12. Wheel; 13. Axle; 14. Handlebar; 15. Ground support foot; 16. Protective cover; 17. Frame; 18. Supporting diagonal bar; 19. Load-bearing platform; 2. Fertilizer spreading assembly; 21. Fertilizer storage bin; 22. Centrifugal distributing disc; 23. Fertilizer holding chamber; 24. Spreading port; 25. Partition; 26. Quantitative spreading chamber; 27. Feed inlet; 28. Volume expansion section; 29. ​​Funnel section; 3. Transmission assembly; 31. Drive pulley; 32. Transmission belt; 33. Driven pulley; 34. First helical gear; 35. Horizontal pivot shaft; 36. Second helical gear; 37. Vertical pivot shaft; 4. Mixing component. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] See Figures 1-2 The present invention provides a fertilizer application and spreading device for paddy fields, comprising: a traveling component 1, a fertilizer spreading component 2, and a transmission component 3.

[0033] The traveling assembly 1 includes a frame 11 and wheels 12, with the wheels 12 connected to the frame 11 via axles 13. The frame 11 is welded from steel and has sufficient strength and rigidity to bear the full load of fertilizer and various stresses during operation. The wheels 12 are wide-faced paddy field wheels with a large diameter to reduce pressure on muddy fields and prevent the device from sinking during use. The wheels 12 are connected to the bottom of the frame 11 via axles 13 and can rotate relative to the frame 11.

[0034] The fertilizer spreading assembly 2 includes a fertilizer storage bin 21 and a centrifugal distributing disc 22. The fertilizer storage bin 21 is mounted on the frame 11 and has a fertilizer receiving cavity 23. The fertilizer storage bin 21 is mounted on the frame 11 by means of plug-in or snap-fit ​​connection. The fertilizer receiving cavity 23 contains fertilizer to be spread. Common fertilizers include nitrogen fertilizer, phosphorus fertilizer, and potassium fertilizer. Mounting the fertilizer storage bin 21 on the frame 11 allows the fertilizer storage bin 21 to move with the traveling assembly 1 without the need for manual carrying, thus reducing labor intensity.

[0035] The centrifugal dispensing disc 22 is located inside the fertilizer containing cavity 23 and is pivotally connected to the fertilizer storage bin 21 via a vertical pivot shaft 37. The centrifugal dispensing disc 22 is provided with multiple partitions 25, which are evenly distributed around the axis of the centrifugal dispensing disc 22 and are all connected to the centrifugal dispensing disc 22 to rotate with the centrifugal dispensing disc 22 around its axis. Two adjacent partitions 25 together with the inner wall of the fertilizer containing cavity 23 form a quantitative dispensing cavity 26, and multiple quantitative dispensing cavities 26 are sequentially connected to the dispensing port 24. The fertilizer storage bin 21 also has a dispensing port 24, which is connected to the external environment and the fertilizer containing cavity 23 respectively. The fertilizer in the fertilizer container 23 falls onto the centrifugal distribution plate 22 due to its own gravity. The quantitative dispensing chambers 26 on the centrifugal distribution plate 22 are all of equal size, so the amount of fertilizer falling into the quantitative dispensing chambers 26 is also equal. The centrifugal distribution plate 22 rotates in conjunction with the vertical pivot shaft 37. The centrifugal force generated by the rotation of the centrifugal distribution plate 22 causes the fertilizer particles to move in the circumferential direction of the centrifugal distribution plate 22. The fertilizer storage chamber 21 is provided with a dispensing port 24 that can connect to the external environment. The fertilizer particles in the quantitative dispensing chamber 26 are thrown out of the fertilizer storage chamber 21 by centrifugal force through the dispensing port 24, realizing the quantitative dispensing of fertilizer.

[0036] The axle 13 is connected to the vertical pivot shaft 37 via the transmission assembly 3. The transmission assembly 3 converts the horizontal rotational motion of the wheel 12 into the vertical rotational motion required by the centrifugal distributing disc 22, and the vertical pivot shaft 37 ensures a direct proportional relationship between the fertilizer spreading rate and the travel speed.

[0037] In use, the fertilizer to be distributed is first poured evenly into the fertilizer receiving cavity 23 of the fertilizer storage bin 21. Then, the operator pushes the device forward, and the wheels 12 at the front of the device begin to rotate horizontally, driving the frame 11 forward. Simultaneously, the horizontal rotational power of the wheels 12 is effectively transmitted and converted into vertical rotational power of the vertical pivot shaft 37 via the transmission component 3 connected to the axle 13, thereby driving the centrifugal distributing disc 22 to rotate at high speed. When the fertilizer particles fall naturally from the top of the fertilizer receiving cavity 23 under gravity, they sequentially enter the quantitative distributing cavity 26 on the centrifugal distributing disc 22, which is formed by the partition 25 and the inner wall. As the centrifugal distributing disc 22 continues to rotate, the fertilizer particles in the quantitative distributing cavity 26 are rapidly thrown towards the distributing port 24 at the bottom of the fertilizer storage bin 21 under centrifugal force, and are evenly distributed from the distributing port 24, ultimately landing accurately on the surface of the paddy field. In this way, fertilizer can be applied quantitatively, continuously, and evenly during the process, which greatly improves fertilization efficiency and reduces the intensity of manual labor.

[0038] The traveling assembly 1 includes a frame 11 and wheels 12, with the wheels 12 connected to the frame 11 via axles 13. The axles 13 are also connected to the vertical pivot shaft 37 via a transmission assembly 3. During use, when the traveling assembly 1 is propelled forward, the transmission assembly 3 converts the horizontal rotational motion of the traveling assembly 1 into the vertical rotational motion of the vertical pivot shaft 37. Since the vertical pivot shaft 37 is pivotally connected to the centrifugal distributing disc 22, simply driving the traveling assembly 1 forward is sufficient to power the fertilizer spreading assembly 2, eliminating the need for additional power and reducing energy consumption.

[0039] The fertilizer spreading assembly 2 includes a fertilizer storage chamber 21 and a centrifugal distributing disc 22. The fertilizer storage chamber 21 is mounted on the frame 11 and has a fertilizer receiving cavity 23 and a distributing port 24, which connects to the external environment and the fertilizer receiving cavity 23. The centrifugal distributing disc 22 is located inside the fertilizer receiving cavity 23 and is pivotally connected to the fertilizer storage chamber 21 via a vertical pivot shaft 37. Therefore, the powder particles to be spread can be evenly distributed under the action of centrifugal force, effectively improving the uniformity of fertilization.

[0040] The centrifugal distributing disc 22 is equipped with multiple partitions 25, which are evenly distributed around the axis of the centrifugal distributing disc 22 and connected to it to rotate with it around its axis. Adjacent partitions 25 and the inner wall of the fertilizer containing cavity 23 together form a quantitative dispensing cavity 26, which is sequentially connected to the dispensing port 24. The axle 13 is connected to the vertical pivot shaft 37 via the transmission assembly 3. The centrifugal distributing disc 22 is connected to the wheel 12 via the transmission assembly 3, so that when the wheel 12 travels the same distance, it drives the centrifugal distributing disc 22 to rotate by the same angle. This ensures that the quantitative dispensing cavity 26 evenly distributes fertilizer to the target area each time, achieving uniform fertilization. Therefore, the amount of fertilizer dispensed each time can be controlled to be the same, eliminating the need for manual control of the dispensing uniformity.

[0041] Preferably, the number of wheels 12 is one, and the frame 11 has a handlebar 14. The single-wheel design reduces the turning radius of the device, giving it high maneuverability and making it suitable for narrow paddy field ridges; the handlebar 14 on the frame 11 allows for easy control of the device's direction of travel during use, making it particularly suitable for uneven farmland environments.

[0042] Preferably, the handlebar 14 is connected to at least two support legs 15, and the wheel 12 is located between the two support legs 15. The support legs 15 can provide additional grounding points, so that the device can stand stably without tipping over when the vehicle is parked or fertilization is paused, thus improving the safety of use; the single wheel located between the two support legs can improve the overall center of gravity stability and prevent tipping due to excessive weight of the fertilizer storage bin 21.

[0043] Preferably, the fertilizer dispensing assembly 2 includes a stirring element 4 located within the fertilizer receiving cavity 23. The stirring element 4 extends along gravity and is linked to a vertical pivot shaft 37 to rotate with the vertical pivot shaft 37. Fertilizer is prone to moisture absorption and clumping within the fertilizer storage bin 21, leading to poor or even interrupted discharge. The stirring element 4 effectively breaks up clumping, ensuring a continuous and smooth flow of fertilizer to the distribution disc. The stirring element 4 shares the same power shaft as the centrifugal distribution disc 22, eliminating the need for an additional power unit and making the transmission more efficient.

[0044] Preferably, the stirring element 4 extends spirally downwards along the direction of gravity. When the spiral blades rotate, they not only stir but also generate a downward pushing force, actively pressing the fertilizer against the centrifugal distribution plate 22 at the bottom, further enhancing the forced feeding effect and ensuring the continuity of feeding.

[0045] The fertilizer spreading assembly 2 includes a stirring element 4 located within the fertilizer receiving cavity 23. The stirring element 4 extends along gravity and is linked to the vertical pivot shaft 37 to rotate with it. Furthermore, the stirring element 4 extends spirally downwards along the direction of gravity. Therefore, the stirring element 4 prevents damp, clump-forming fertilizer from clogging the fertilizer receiving cavity 23 and affecting the fertilizer spreading efficiency. Simultaneously, it forces the fertilizer within the fertilizer receiving cavity 23 to ensure a constant amount of fertilizer falls into the metering spreading cavity 26, thus improving spreading uniformity.

[0046] Preferably, the feed inlet 27 of the fertilizer storage bin 21 is located at the top of the fertilizer receiving cavity 23. Top feeding conforms to the operating habits of manual or mechanical feeding, is convenient and quick, and allows for the design of a larger feed inlet to improve feeding efficiency.

[0047] The fertilizer storage bin 21 has its inlet 27 located at the top of the fertilizer receiving cavity 23. This avoids the spillage problem that may be caused by lateral feeding, improving feeding efficiency and operational safety.

[0048] Preferably, the fertilizer storage bin 21 includes a volume expansion section 28 and a funnel section 29, which together form the fertilizer receiving cavity 23. The volume expansion section 28 is located above the funnel section 29, and the horizontal cross-sectional outline of the funnel section 29 gradually decreases along the direction of gravity. The centrifugal distributing tray 22 is located at the bottom of the funnel section 29. Fertilizer can naturally collect in the centrifugal distributing tray 22 under gravity, avoiding accumulation in dead corners. The volume expansion section 28 can increase the storage capacity, improve the coverage area of ​​a single loading operation, and reduce the workload of frequent fertilizer replenishment.

[0049] Preferably, the transmission assembly 3 includes a driving pulley 31, a transmission belt 32, a driven pulley 33, a first helical gear 34, a horizontal pivot shaft 35, and a second helical gear 36; the driving pulley 31 is sleeved on the axle 13, the driven pulley 33 is sleeved on the horizontal pivot shaft 35, the first helical gear 34 is sleeved on the horizontal pivot shaft 35, and the second helical gear 36 is pivotally connected to the vertical pivot shaft 37; the axle 13, the driving pulley 31, the transmission belt 32, the driven pulley 33, the first helical gear 34, the horizontal pivot shaft 35, the second helical gear 36, and the vertical pivot shaft 37 are sequentially connected for transmission.

[0050] Preferably, the frame 11 has a protective cover 16, and the first helical gear 34 and the second helical gear 36 are located inside the protective cover 16. The protective cover 16 can seal the gear area, effectively preventing impurities such as mud, fertilizer powder and other impurities from entering the gears, thus improving the reliability of the transmission system. At the same time, it avoids accidental contact with the gears by personnel, improving operational safety.

[0051] Preferably, the frame 11 includes a frame 17, multiple supporting diagonal rods 18, and a support platform 19; the frame 17 is located below the support platform 19, and the frame 17 supports the support platform 19 through the multiple supporting diagonal rods 18; the fertilizer spreading assembly 2 is installed on the support platform 19; the protective cover 16 is installed on the support platform 19 and supported by the support platform 19, and the protective cover 16 is located between the support platform 19 and the frame 17, with the multiple supporting diagonal rods 18 distributed horizontally and circumferentially around the protective cover 16. The combined structure of the frame 17, the support platform 19, and the supporting diagonal rods 18 significantly improves the structural strength and load-bearing capacity of the entire machine; the circumferential distribution of the supporting diagonal rods 18 ensures the stability and durability of the fertilizer spreading device during long-term operation; the layered design facilitates the arrangement of the fertilizer storage bin 21, the transmission assembly 3, and the protective cover 16, improving maintenance convenience and space utilization.

[0052] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fertilizer spreading device for paddy fields, characterized in that, include: The travel assembly (1) includes a frame (11) and wheels (12), the wheels (12) being connected to the frame (11) via axles (13); A fertilizer spreading assembly (2) includes a fertilizer storage bin (21) and a centrifugal distributing disc (22). The fertilizer storage bin (21) is mounted on the frame (11). The fertilizer storage bin (21) has a fertilizer receiving cavity (23) and a dispensing port (24). The dispensing port (24) is connected to the external environment and the fertilizer receiving cavity (23). The centrifugal dispensing disc (22) is located inside the fertilizer receiving cavity (23) and is pivotally connected to the frame via a vertical pivot shaft (37). The fertilizer storage bin (21) and the centrifugal dispensing disc (22) are provided with multiple partitions (25). The multiple partitions (25) are evenly distributed around the axis of the centrifugal dispensing disc (22) and are all connected to the centrifugal dispensing disc (22) so as to follow the centrifugal dispensing disc (22) in rotating around the axis of the centrifugal dispensing disc (22). Two adjacent partitions (25) together with the inner wall of the fertilizer receiving cavity (23) form a quantitative dispensing cavity (26). The multiple quantitative dispensing cavities (26) are connected to the dispensing port (24) in sequence. The transmission assembly (3) is used to drive the axle (13) to the vertical pivot shaft (37).

2. The fertilizer application and spreading device for paddy fields according to claim 1, characterized in that, The number of wheels (12) is one, and the frame (11) has a handlebar (14).

3. A fertilizer spreading device for paddy fields according to claim 2, characterized in that, The handlebars (14) are connected to at least two footrests (15), and the wheel (12) is located between the two footrests (15).

4. A fertilizer spreading device for paddy fields according to claim 1, characterized in that, The fertilizer spreading assembly (2) includes a stirring element (4), which is located in the fertilizer accommodating cavity (23). The stirring element (4) extends along gravity and is linked to the vertical pivot shaft (37) to rotate with the vertical pivot shaft (37).

5. A fertilizer spreading device for paddy fields according to claim 4, characterized in that, The stirring element (4) extends spirally downwards along the direction of gravity.

6. A fertilizer spreading device for paddy fields according to claim 5, characterized in that, The feed inlet (27) of the fertilizer storage bin (21) is located at the top of the fertilizer container (23).

7. A fertilizer spreading device for paddy fields according to claim 4, characterized in that, The fertilizer storage bin (21) includes a volume expansion section (28) and a funnel section (29). The volume expansion section (28) and the funnel section (29) together form the fertilizer receiving cavity (23). The volume expansion section (28) is located above the funnel section (29). The horizontal cross-sectional inner contour of the funnel section (29) gradually decreases along the direction of gravity. The centrifugal dispensing plate (22) is located at the bottom of the funnel section (29).

8. A fertilizer spreading device for paddy fields according to claim 1, characterized in that, The transmission assembly (3) includes a drive pulley (31), a transmission belt (32), a driven pulley (33), a first helical gear (34), a horizontal pivot shaft (35), and a second helical gear (36). The drive pulley (31) is sleeved on the axle (13), the driven pulley (33) is sleeved on the horizontal pivot shaft (35), the first helical gear (34) is sleeved on the horizontal pivot shaft (35), and the second helical gear (36) is pivotally connected to the vertical pivot shaft (37). The axle (13), the drive pulley (31), the transmission belt (32), the driven pulley (33), the first helical gear (34), the horizontal pivot shaft (35), the second helical gear (36), and the vertical pivot shaft (37) are sequentially connected for transmission.

9. A fertilizer spreading device for paddy fields according to claim 8, characterized in that, The frame (11) has a protective cover (16) inside which the first helical gear (34) and the second helical gear (36) are located.

10. A fertilizer spreading device for paddy fields according to claim 9, characterized in that, The frame (11) includes a frame (17), multiple supporting diagonal rods (18), and a carrying platform (19); the frame (17) is located below the carrying platform (19), and the frame (17) supports the carrying platform (19) through the multiple supporting diagonal rods (18); the fertilizer spreading assembly (2) is installed on the carrying platform (19); the protective cover (16) is installed on the carrying platform (19) and supported by the carrying platform (19), the protective cover (16) is located between the carrying platform (19) and the frame (17), and the multiple supporting diagonal rods (18) are distributed horizontally and circumferentially around the protective cover (16).

Images