Annular applicator

Abstract

The utility model belongs to fertilizing equipment technical field discloses a kind of annular fertilizer applicator, it includes fertilizer package, feed hose, discharging control device, discharging pipe and annular discharging cover. Among them, fertilizer package includes flexible package body, braces and two discharge connectors, flexible package body is used to hold fertilizer, braces are set on flexible package body, and two discharge connectors are set on the bottom of flexible package body. The feed end of feed hose is connected with discharge connector. Discharging control device includes feed pipe and control assembly, the feed end of feed pipe is connected with the discharge end of feed hose, and control assembly is used to control the fertilizer amount passing in feed pipe. The feed end of discharging pipe is connected with the discharge end of feed pipe, and discharging pipe is telescopic pipe. Annular discharging cover is connected with the discharge end of discharging pipe, and annular discharging cover is used to make the landing shape of fertilizer annular. The above-mentioned annular fertilizer applicator integrates multiple functions in one, compared with the existing fertilizer applicator with only single function, can fully exert the advantages of fertilizer applicator.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer application equipment technology, and in particular to a ring fertilizer applicator. Background Technology

[0002] During the cultivation of flue-cured tobacco, its growth requires the absorption of a large amount of nutrients from the soil, such as macronutrients like nitrogen, phosphorus, and potassium, as well as micronutrients like calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, and molybdenum. However, the nutrients in the soil are limited and cannot continuously meet the needs of flue-cured tobacco throughout its entire growth period. Therefore, timely replenishment of these nutrients through fertilization is necessary to create a suitable nutritional environment for tobacco growth. Thus, fertilization is a crucial factor affecting the yield and quality of tobacco leaves.

[0003] Flue-cured tobacco fertilizer is typically applied using a ring-shaped fertilization method. This method avoids over-concentration of fertilizer, which can burn the seedlings, and ensures a more even distribution of nutrients, allowing for more uniform absorption by the plant roots and meeting the plant's growth needs. Currently, ring-shaped fertilization mainly relies on manual application, which suffers from problems such as high labor intensity, uneven fertilization, and low fertilizer utilization. In recent years, although some ring-shaped fertilizer applicators have emerged, their functions are limited, often only capable of ring-shaped fertilization. Furthermore, their use is still hampered by issues such as inconvenience in carrying, limited applicability, inability to apply fertilizer quantitatively, and single-tube operation, failing to fully realize the advantages of mechanical fertilization over manual fertilization—it is lighter, more efficient, and saves time and labor. Utility Model Content

[0004] The purpose of this utility model is to provide a ring-shaped fertilizer applicator that is lightweight, easy to carry, and versatile. It can also achieve quantitative fertilization and dual-tube operation, thus fully leveraging the advantages of fertilizer applicators.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A ring-shaped fertilizer applicator, comprising:

[0007] A fertilizer bag, comprising a flexible bag body, a shoulder strap, and two discharge connectors, wherein the flexible bag body is used to hold fertilizer, the shoulder strap is disposed on the flexible bag body, and the two discharge connectors are disposed at the bottom of the flexible bag body;

[0008] A conveying hose, wherein the inlet end of the conveying hose is connected to the outlet connector;

[0009] A feeding control device includes a feeding pipe and a control component. The feeding end of the feeding pipe is connected to the discharging end of the feeding hose. The control component is used to control the amount of fertilizer passing through the feeding pipe.

[0010] A feeding pipe, wherein the feeding end of the feeding pipe is connected to the discharging end of the conveying pipe, and the feeding pipe is a telescopic pipe;

[0011] An annular discharge hood is connected to the discharge end of the discharge pipe, and the annular discharge hood is used to make the fertilizer land in an annular shape.

[0012] Each of the discharge connectors is sequentially connected to a conveying hose, a discharge control device, a discharge pipe, and an annular discharge cover.

[0013] Optionally, the flexible package is a canvas bag with a waterproof coating on the inner wall.

[0014] Optionally, the bottom of the flexible package is further provided with a support base, and the discharge connector is disposed on the support base.

[0015] Optionally, the control component includes a guide tube, a sealing element, and an adjusting element. The guide tube is disposed on the conveying pipe and is arranged at an angle to the conveying pipe. The guide tube communicates with the interior of the conveying pipe.

[0016] The sealing component includes a sealing part and an adjusting part. The sealing part is partially disposed inside the conveying pipe and forms a discharge port between itself and the inner wall of the conveying pipe. The adjusting part is movably disposed inside the guide pipe and can drive the sealing part to move inside the conveying pipe, thereby adjusting the size of the discharge port.

[0017] The guide tube has a groove that extends along the length of the guide tube. One end of the adjusting member is connected to the adjusting part, and the other end extends out of the groove. The adjusting member can slide within the groove.

[0018] Optionally, the feeding control device further includes a limiting member, which is disposed at the end of the guide tube away from the feeding tube, and the end of the adjusting part away from the feeding tube can abut against the limiting member. The distance between the limiting member and the end of the adjusting part away from the feeding tube is adjustable.

[0019] Optionally, the limiting member is a knob cover, and a graduated thread is provided on the outer wall of the end of the guide tube away from the feed tube, and the knob cover is screwed into the graduated thread.

[0020] Optionally, the feeding control device further includes a reset assembly disposed within the guide tube. The reset assembly includes a first retaining ring, a second retaining ring, and an elastic element. The first retaining ring is movably disposed within the guide tube and located on the side of the adjusting member away from the conveying pipe. The second retaining ring is fixed at the end of the guide tube away from the conveying pipe. The elastic element is disposed between the first retaining ring and the second retaining ring. The adjusting member can move through the first retaining ring, the second retaining ring, and the elastic element.

[0021] Optionally, a handle is also provided on the outer wall of the guide tube, and the handle is located on the side of the adjusting member away from the conveying tube.

[0022] Optionally, the feed tube includes an inner tube and an outer tube, the inner tube being nested inside the outer tube, and the inner tube being able to slide within the outer tube.

[0023] Optionally, the annular discharge cover includes an outer cover, an inner cover, and a connector. Both the outer cover and the inner cover are funnel-shaped structures. The outer cover covers the outside of the inner cover and forms a discharge space between the outer cover and the inner cover. The connector is disposed in the discharge space and is used to connect the outer cover and the inner cover.

[0024] The beneficial effects of this utility model are:

[0025] The ring-shaped fertilizer applicator provided in this embodiment improves carrying comfort by replacing the traditional fertilizer box with a fertilizer bag with a flexible casing. The two discharge joints allow for both single-tube and double-tube operation, making the ring-shaped fertilizer applicator flexible and adaptable to different fertilization scenarios. The feeding control device controls the amount of fertilizer applied per application, ensuring fertilization effectiveness. Furthermore, the telescopic feeding tube allows the applicator to adjust its length according to the user's height, further enhancing the applicator's suitability for the user. By integrating these multiple functions, the ring-shaped fertilizer applicator provided in this embodiment fully leverages the advantages of lightweight, efficient, time-saving, and labor-saving features compared to existing single-function fertilizer applicators. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the ring fertilizer applicator provided in this embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the feeding control device provided in this embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the annular feeding hood provided in an embodiment of this utility model;

[0029] Figure 4 This is a bottom view of the annular feed cover provided in this embodiment of the utility model.

[0030] In the picture:

[0031] 1. Fertilizer bag; 11. Flexible bag body; 12. Shoulder strap; 13. Discharge connector;

[0032] 2. Material conveying hose;

[0033] 3. Material feeding control device; 31. Material conveying pipe; 311. First connector; 32. Guide pipe; 321. Slide groove; 322. Scale thread; 33. Sealing component; 331. Sealing part; 332. Adjusting part; 34. Adjusting component; 35. Reset assembly; 351. First retaining ring; 352. Second retaining ring; 353. Elastic component; 36. Knob cover; 37. Handle;

[0034] 4. Feed pipe; 41. Inner pipe; 42. Outer pipe;

[0035] 5. Annular discharge cover; 51. Outer cover; 511. Second connector; 52. Inner cover; 53. Connecting piece;

[0036] 6. Fasteners. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0038] In the description of this utility model, 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, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 utility model based on the specific circumstances.

[0039] In this invention, unless otherwise explicitly 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 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 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.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] like Figure 1 As shown, this embodiment provides a ring-shaped fertilizer applicator, which includes a fertilizer bag 1, a conveying hose 2, a discharge control device 3, a discharge pipe 4, and a ring-shaped discharge cover 5. The fertilizer bag 1 includes a flexible bag body 11, a shoulder strap 12, and two discharge connectors 13. The flexible bag body 11 holds the fertilizer, the shoulder strap 12 is mounted on the flexible bag body 11, and the two discharge connectors 13 are located at the bottom of the flexible bag body 11. The inlet end of the conveying hose 2 is connected to the discharge connectors 13. The discharge control device 3 includes a conveying pipe 31 and a control component. The inlet end of the conveying pipe 31 is connected to the outlet end of the conveying hose 2, and the control component controls the amount of fertilizer passing through the conveying pipe 31. The inlet end of the discharge pipe 4 is connected to the outlet end of the conveying pipe 31, and the discharge pipe 4 is a telescopic pipe. The ring-shaped discharge cover 5 is connected to the outlet end of the discharge pipe 4, and the ring-shaped discharge cover 5 ensures that the fertilizer falls in a ring shape. In this configuration, any discharge connector 13 is sequentially connected to a conveying hose 2, a discharge control device 3, a discharge pipe 4, and an annular discharge cover 5.

[0042] The fertilizer bag 1 in this ring-shaped fertilizer applicator uses a flexible bag body 11 instead of a traditional fertilizer box, thus improving carrying comfort. The amount of fertilizer passing through the feed pipe 31 is controlled by the feeding control device 3, thereby controlling the amount of fertilizer applied per application and ensuring fertilization effectiveness. By providing two discharge joints 13, both single-pipe and double-pipe operation can be selected, allowing the ring-shaped fertilizer applicator to flexibly adapt to different fertilization scenarios. Furthermore, the feed pipe 4 is a telescopic pipe, allowing the fertilizer applicator to adjust its length according to its own height, further improving the compatibility between the ring-shaped fertilizer applicator and the fertilizer applicator. The ring-shaped fertilizer applicator provided in this embodiment integrates the above-mentioned multiple functions, thus fully leveraging the advantages of being lightweight, efficient, time-saving, and labor-saving.

[0043] In some embodiments, the flexible bag 11 is a canvas bag with a waterproof coating on the inner wall. The canvas bag is soft and lightweight, making it comfortable and easy for fertilizer applicators to carry. It also has good abrasion resistance, so even if the fertilizer bag 1 rubs against other parts of the ring-shaped fertilizer applicator during application, it is not easily damaged, thus ensuring the lifespan of the ring-shaped fertilizer applicator. The waterproof coating on the inner wall of the canvas bag effectively prevents the intrusion of external moisture, keeps the fertilizer inside the bag dry, avoids clumping, ensures the fertilizer remains loose, and guarantees that the fertilizer flows smoothly from the ring-shaped fertilizer applicator and is evenly distributed in the soil during application.

[0044] It is understood that in some other embodiments, the flexible package 11 may also be made of other materials as needed, such as burlap or nylon bags, as long as a waterproof coating is provided on the inner wall of the flexible package 11, and no restrictions are imposed here.

[0045] In some embodiments, the bottom of the flexible package 11 is further provided with a support base (not shown in the figure), and the discharge connector 13 is disposed on the support base. The support base is a support plate disposed at the bottom of the flexible package 11, which can enhance the stability of the fertilizer bag 1 and its support capacity for the fertilizer inside, preventing the fertilizer from falling inside the canvas bag and failing to flow out from the discharge connector 13. At the same time, the support base and the carrying strap 12 cooperate with each other to reduce the pressure on the shoulders of the fertilizer applicator during the fertilizer application process. When the support base is provided at the bottom of the flexible package 11, a discharge hole needs to be opened on the support base, and the discharge connector 13 needs to be connected to the discharge hole so that the fertilizer inside the flexible package 11 can flow out from the discharge connector 13.

[0046] It should be noted that the support base is existing technology in the field of backpack design, and will not be elaborated on here.

[0047] like Figure 1 and Figure 2 As shown, the control assembly includes a guide tube 32, a sealing element 33, and an adjusting element 34. The guide tube 32 is mounted on the conveying pipe 31 at an angle to it, and communicates internally with the conveying pipe 31. The sealing element 33 includes a sealing portion 331 and an adjusting portion 332. The sealing portion 331 is partially disposed within the conveying pipe 31, forming a discharge port with the inner wall of the conveying pipe 31. The adjusting portion 332 is movably disposed within the guide tube 32, and can move the sealing portion 331 within the conveying pipe 31, thereby adjusting the size of the discharge port. A groove 321 is formed on the guide tube 32, extending along its length. One end of the adjusting element 34 is connected to the adjusting portion 332, and the other end extends out of the groove 321, allowing the adjusting element 34 to slide within the groove 321.

[0048] like Figure 2As shown, in this embodiment, when the adjusting member 34 is located at the lowest position inside the chute 321, the sealing part 331 completely seals the inside of the conveying pipe 31, and the annular fertilizer applicator does not feed. When the fertilizer applicator moves the adjusting member 34 upward, a discharge port is formed between the sealing part 331 and the inner wall of the conveying pipe 31, and the fertilizer can continue to flow downward through the discharge port.

[0049] By adjusting the position of the sealing element 33 within the conveying pipe 31 and the guide pipe 32, different sized discharge openings are formed between the sealing part 331 and the inner wall of the conveying pipe 31. It can be understood that, with the discharge opening size remaining constant, the amount of fertilizer flowing out from the discharge opening within the same time period is the same, thus achieving quantitative feeding. Furthermore, by setting an adjusting element 34 to slide within the chute 321, not only is it convenient for fertilizer applicators to adjust the position of the sealing element 33 on the outside of the guide pipe 32, but also, since the length of the chute 321 is fixed, the size of the discharge opening formed between the sealing part 331 and the inner wall of the conveying pipe 31 remains fixed each time the adjusting element 34 is moved from one end of the chute 321 to the other, thus facilitating control by fertilizer applicators.

[0050] In some embodiments, such as Figure 2 As shown, the feeding control device 3 is generally gun-shaped, including a feeding pipe 31 that is inclined downward from right to left and a guide pipe 32 that is vertically arranged on the feeding pipe 31. The guide pipe 32 is connected to the interior of the feeding pipe 31. It is understood that in some other embodiments, the feeding control device 3 is not limited to a gun-shaped structure. For example, when the feeding pipe 31 is perpendicular to the guide pipe 32, it is a "T"-shaped structure, which is not limited here.

[0051] In some embodiments, such as Figure 2 As shown, the sealing part 331 is a bent plate, which is disposed at the connection between the guide tube 32 and the conveying tube 31. A part of the bent plate is disposed inside the conveying tube 31 and can seal the conveying tube 31, while the other part is disposed in the guide tube 32. The entire sealing part 331 can move within the guide tube 32 and the conveying tube 31. It is understood that in some other embodiments, the sealing part 331 is not limited to a bent plate structure, and can also be block-shaped, spherical, etc., as long as it can seal the conveying tube 31 and can move within the guide tube 32 and the conveying tube 31. No limitation is made here.

[0052] In some embodiments, such as Figure 2 As shown, the adjusting part 332 is a straight rod and is fixedly connected to the portion of the sealing part 331 located inside the guide tube 32. The adjusting part 332 drives the sealing part 331 to move within the conveying tube 31 and the guide tube 32. It is understood that in some other embodiments, the adjusting part 332 is not limited to a straight rod structure, and can also be tubular, curved, etc., which is not limited here.

[0053] It is also understandable that the sealing component 33 can be a one-piece molded structure or a structure assembled from the sealing part 331 and the adjusting part 332, without any restrictions.

[0054] In some embodiments, such as Figure 2 As shown, the adjusting member 34 is a short rod. One end of the short rod is fixedly connected to the adjusting part 332 inside the guide tube 32, and the other end passes through the slide groove 321 and extends to the outside of the guide tube 32. Thus, the fertilizer applicator only needs to move the portion of the adjusting member 34 located outside the guide tube 32 to slide within the slide groove 321, allowing the adjusting part 332 to slide within the guide tube 32, thereby adjusting the size of the discharge port formed between the sealing part 331 and the inner wall of the conveying pipe 31. It is understood that in some other embodiments, the adjusting member 34 is not limited to a rod-shaped structure; it can also be a sheet-like or tubular structure, etc., and this is not a limitation here.

[0055] In some embodiments, such as Figure 2 As shown, the feeding control device 3 also includes a reset assembly 35, which is disposed inside the guide tube 32. The reset assembly 35 includes a first retaining ring 351, a second retaining ring 352, and an elastic member 353. The first retaining ring 351 is movably disposed inside the guide tube 32 and is located on the side of the adjusting member 34 away from the conveying tube 31. The second retaining ring 352 is fixed at the end of the guide tube 32 away from the conveying tube 31. The elastic member 353 is disposed between the first retaining ring 351 and the second retaining ring 352. The adjusting part 332 can move through the first retaining ring 351, the second retaining ring 352, and the elastic member 353.

[0056] By setting the reset component 35, the sealing component 33 and the adjusting component 34 can be automatically reset during the fertilization process, making it more convenient and efficient for fertilization personnel to operate the feeding control device 3.

[0057] Specifically, such as Figure 2 As shown, in this embodiment, when no external force is applied to the adjusting member 34, the elastic member 353 applies a downward force to the first retaining ring 351. At this time, the first retaining ring 351 presses down on the adjusting member 34, placing the adjusting member 34 at the lowest end of the slide groove 321. When the fertilizer applicator moves the adjusting member 34 upward, the adjusting member 34 drives the first retaining ring 351 to move upward synchronously. At this time, the elastic member 353 is compressed and accumulates pressure. After the fertilizer application is completed and the fertilizer applicator releases the pressure, the elastic member 353 releases the accumulated pressure, and the first retaining ring 351 and the adjusting member 34 move downward under force, with the adjusting member 34 returning to the lowest position in the slide groove 321. Optionally, in this embodiment, the elastic member 353 is a compression spring.

[0058] Furthermore, the feeding control device 3 also includes a limiting member, which is located at the end of the guide tube 32 away from the feeding tube 31. The end of the adjusting part 332 away from the feeding tube 31 can abut against the limiting member, and the distance between the limiting member and the end of the adjusting part 332 away from the feeding tube 31 is adjustable.

[0059] By setting a limiting component, the size of the discharge port formed between the sealing part 331 and the inner wall of the conveying pipe 31 is the same each time the end of the adjusting part 332 away from the conveying pipe 31 comes into contact with the limiting component. Since the distance between the limiting component and the end of the adjusting part 332 away from the conveying pipe 31 is adjustable, the size of the discharge port can be adjusted, which makes it easier for fertilizer applicators to adjust the amount of fertilizer applied by the ring fertilizer applicator.

[0060] Optionally, such as Figure 2 As shown, in this embodiment, the limiting component is a knob cover 36. A graduated thread 322 is provided on the outer wall of the end of the guide tube 32 away from the feed tube 31. The knob cover 36 is screwed into the graduated thread 322. The graduated thread 322 refers to a thread with graduated lines. When the knob cover 36 is turned on the graduated thread 322, the bottom edge of the knob cover 36 can coincide with the graduated lines.

[0061] For example, the graduated thread 322 has three graduation lines, each marked with a fertilizer application amount (e.g., 20g, 30g, 40g). Figure 2 As shown, when the knob cover 36 is screwed to the bottom, the top of the adjusting part 332 just abuts against the knob cover 36, and at this time, the adjusting part 34 is located at the bottom of the slide groove 321, and the sealing part 331 completely seals the conveying pipe 31. During fertilization, the fertilizer turns the knob cover 36 upward to the corresponding scale line according to the required amount of fertilizer. At this time, there is a fixed distance between the top of the adjusting part 332 and the knob cover 36. The fertilizer moves the adjusting part 34 upward, and when he feels the top of the adjusting part 332 abut against the knob cover 36, he can release it so that the sealing part 33 and the adjusting part 34 automatically reset. By repeating this operation, the feeding control device 3 can output the amount of fertilizer corresponding to the scale line each time.

[0062] It should be noted that during the actual fertilization process, the fertilizer moves the adjusting part 34 upward and immediately releases it when the top of the adjusting part 332 comes into contact with the knob cover 36, so that the sealing part 33 and the adjusting part 34 automatically reset. The time taken for each operation is basically the same. Therefore, the amount of fertilizer output by the feeding control device 3 each time is basically the same as the amount of fertilizer marked on the scale, thus realizing quantitative fertilization.

[0063] It is understood that in some other embodiments, the number of scale lines on the scale thread 322 and the amount of fertilizer marked can be set according to actual needs, and there are no restrictions here.

[0064] It is also understood that in some other embodiments, the limiting member is not limited to the knob cover 36, but can also be a snap cover. In this case, multiple scale grooves are provided on the outer wall of the end of the guide tube 32 away from the feed tube 31, and a snap protrusion is provided at the open end of the snap cover. The snap protrusion can be engaged in the scale groove, so that when different amounts of fertilizer are required, the snap protrusion can be engaged in different scale grooves.

[0065] In some embodiments, such as Figure 2 As shown, a handle 37 is also provided on the outer wall of the guide tube 32. The handle 37 is located on the side of the adjusting member 34 away from the conveying tube 31. By providing the handle 37, the fertilizer applicator's hand can grip the handle 37 while the index finger hooks the adjusting member 34, forming a posture similar to holding a pistol, thus facilitating the fertilizer applicator to operate the feeding control device 3.

[0066] In some embodiments, such as Figure 1 As shown, the feeding pipe 4 includes an inner pipe 41 and an outer pipe 42. The inner pipe 41 is nested inside the outer pipe 42, and the inner pipe 41 can slide within the outer pipe 42. By sliding the inner pipe 41 within the outer pipe 42, the length of the feeding pipe 4 can be adjusted, thereby improving the adaptability of the annular fertilizer applicator to the fertilizer applicator operator. It is understood that in some other embodiments, the feeding pipe 4 is not limited to the above structure, as long as it can achieve feeding and extension. For example, the feeding pipe 4 can be a corrugated pipe, which is not limited here.

[0067] Furthermore, such as Figure 1 As shown, a fixing member 6 is also provided on the outer side of the outer pipe 42. After the fertilizer applicator adjusts the relative position of the inner pipe 41 and the outer pipe 42, the inner pipe 41 and the outer pipe 42 can be fixed by the fixing member 6, thereby ensuring that the feed pipe 4 maintains a fixed length during the fertilizer application process. Optionally, in this embodiment, the fixing member 6 is a snap-fit ​​hose clamp. The snap-fit ​​hose clamp is not only easy to install and remove and reusable, but also can apply uniform pressure to the pipe after being fastened, ensuring the sealing of the connection.

[0068] like Figure 1 , Figure 3 and Figure 4 As shown, the annular discharge hood 5 includes an outer cover 51, an inner cover 52, and a connector 53. Both the outer cover 51 and the inner cover 52 are funnel-shaped structures. The outer cover 51 covers the outside of the inner cover 52, forming a discharge space between them. The connector 53 is disposed within the discharge space and is used to connect the outer cover 51 and the inner cover 52. Specifically, the small-diameter end of the outer cover 51 is an open structure and is connected to the discharge end of the discharge pipe 4. The small-diameter end of the inner cover 52 is a closed structure. One end of the connector 53 within the discharge space is fixedly connected to the outer cover 51, and the other end is fixedly connected to the inner cover 52. Through the annular discharge hood 5, when fertilizer enters the discharge space, it is constrained into an annular shape by the discharge space, thus ensuring that the shape of the fertilizer upon landing is an annular.

[0069] The annular fertilizer applicator provided in this embodiment includes the following details regarding the fertilizer feeding process and the specific connection methods of the fertilizer bag 1, the conveying hose 2, the feeding control device 3, the feeding pipe 4, and the annular feeding cover 5:

[0070] like Figure 1 As shown, after the fertilizer flows out of the fertilizer bag 1, it first flows into the feeding control device 3. The fertilizer bag 1 and the feeding control device 3 are connected by a conveying hose 2. The conveying hose 2 can be bent at will, so the fertilizer applicator can control the feeding control device 3 to move freely, which is convenient for the fertilizer applicator to carry out the fertilization.

[0071] like Figure 1 As shown, the conveying hose 2 is sleeved on the outside of the discharge connector 13. A fixing member 6 is also provided on the outside of the conveying hose 2. The conveying hose 2 and the discharge connector 13 are fixed by the fixing member 6. Optionally, in this embodiment, the fixing member 6 is a snap-lock hose clamp. The snap-lock hose clamp is not only easy to install and remove and can be reused, but also can apply uniform pressure to the pipeline after being fastened to ensure the sealing of the connection.

[0072] Optionally, such as Figure 1 and Figure 2 As shown, in this embodiment, the feeding end of the feeding control device 3 is provided with a first connector 311, and the discharge end of the conveying hose 2 is connected to the first connector 311 by a thread. The threaded connection has high reliability and is easy to assemble and disassemble. It is understood that in some other embodiments, other connection methods can also be used between the discharge end of the conveying hose 2 and the first connector 311, such as interference fit, etc., which are not limited here.

[0073] After the fertilizer flows out from the discharge control device 3, it flows into the discharge pipe 4, such as... Figure 1 As shown, the discharge end of the feeding control device 3 is directly connected to the inlet end of the feeding pipe 4.

[0074] Optionally, in this embodiment, the discharge end of the feeding control device 3 and the inlet end of the feeding pipe 4 are connected by a threaded connection. The threaded connection has high reliability and is easy to assemble and disassemble. It is understood that in some other embodiments, other connection methods, such as interference fit, can also be used between the discharge end of the feeding control device 3 and the inlet end of the feeding pipe 4, which are not limited here.

[0075] After the fertilizer flows out of the discharge pipe 4, it flows into the annular discharge hood 5, such as... Figure 1 As shown, the discharge end of the feeding pipe 4 is connected to the inlet end of the annular feeding hood 5.

[0076] Optionally, such as Figure 1 and Figure 3As shown, in this embodiment, the small-diameter end of the outer cover 51 is provided with a second connector 511, and the discharge end of the feed tube 4 is threadedly connected to the second connector 511. The threaded connection has high reliability and is easy to assemble and disassemble. It is understood that in some other embodiments, other connection methods can also be used between the discharge end of the feed tube 4 and the second connector 511, such as interference fit, etc., which are not limited here.

[0077] It is understandable that waterproof sealing structures can be installed at both ends of the conveying hose 2, both ends of the feeding control device 3, and both ends of the feeding pipe 4 to prevent the fertilizer from being contaminated and clumped by external moisture during its flow in the annular fertilizer applicator, and also to prevent fertilizer leakage.

[0078] The annular fertilizer applicator provided in this embodiment, taking dual-tube operation as an example, has the following specific fertilization method:

[0079] 1. The fertilizer should first determine the amount of fertilizer to be applied and turn the knob cover 36 to the corresponding scale line.

[0080] 2. Adjust the length of the feed tube 4 according to your height, and fix the inner tube 41 and the outer tube 42 after adjustment;

[0081] 3. Then the fertilizer operator puts the fertilizer bag 1 on his body and holds a feeding control device 3 in each hand;

[0082] 4. After the fertilizer arrives at the location where fertilization is needed, adjust the direction of the feeding control device 3 so that the feeding pipe 4 is vertically facing the bottom and the discharge end of the annular feeding hood 5 is in close contact with the ground.

[0083] 5. When the fertilizer applicator moves the adjusting part 34, and feels the top of the adjusting part 332 abut against the knob cover 36, immediately release the hand so that the adjusting part 34 automatically resets, and then the fertilizer amount corresponding to the scale line can be output from the annular feeding hood 5.

[0084] 6. Move to the next fertilization location and repeat steps 4 and 5.

[0085] Understandably, if a single-pipe operation is used, only the unused discharge connector 13 needs to be sealed, for example, by using a sealing cap to seal the discharge connector 13. Since the sealed discharge connector 13 is not connected to the conveying hose 2, the discharge control device 3, or other structures, the fertilizer operator only needs to operate one discharge control device 3 with one hand during the fertilization process. The remaining operation methods are the same as those for the dual-pipe operation, and will not be repeated here.

[0086] In the ring-shaped fertilizer applicator provided in this embodiment, the fertilizer bag 1 uses a flexible bag body 11 instead of a traditional fertilizer box, thereby improving carrying comfort. The amount of fertilizer passing through the feed pipe 31 is controlled by the feeding control device 3, thus controlling the amount of fertilizer applied per application and ensuring fertilization effectiveness. By providing two discharge joints 13, the feeding method can be either single-pipe operation or double-pipe operation, allowing the ring-shaped fertilizer applicator to flexibly adapt to different fertilization scenarios. Furthermore, by setting the feed pipe 4 as a telescopic pipe, the fertilizer applicator can adjust the length of the feed pipe 4 according to its own height, further improving the adaptability of the ring-shaped fertilizer applicator to the fertilizer applicator. The ring-shaped fertilizer applicator provided in this embodiment integrates the above-mentioned multiple functions, thereby fully leveraging the advantages of being lightweight, efficient, time-saving, and labor-saving.

[0087] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. 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 this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A ring-shaped fertilizer applicator, characterized in that, include: Fertilizer bag (1), the fertilizer bag (1) includes a flexible bag body (11), a shoulder strap (12) and two discharge connectors (13). The flexible bag body (11) is used to hold fertilizer. The shoulder strap (12) is set on the flexible bag body (11). The two discharge connectors (13) are set at the bottom of the flexible bag body (11). The material conveying hose (2) is connected to the material discharge connector (13) at its inlet end. The feeding control device (3) includes a feeding pipe (31) and a control component. The feeding end of the feeding pipe (31) is connected to the discharging end of the feeding hose (2). The control component is used to control the amount of fertilizer passing through the feeding pipe (31). The feeding pipe (4) is connected to the discharge end of the conveying pipe (31). The feeding pipe (4) is a telescopic pipe. An annular discharge hood (5) is connected to the discharge end of the discharge pipe (4). The annular discharge hood (5) is used to make the fertilizer land in an annular shape. Each of the discharge connectors (13) is sequentially connected to a conveying hose (2), a discharge control device (3), a discharge pipe (4), and an annular discharge cover (5).

2. The annular fertilizer applicator according to claim 1, characterized in that, The flexible package (11) is a canvas bag with a waterproof coating on the inner wall.

3. The annular fertilizer applicator according to claim 1, characterized in that, The bottom of the flexible package (11) is also provided with a support base, and the discharge connector (13) is provided on the support base.

4. The annular fertilizer applicator according to claim 1, characterized in that, The control component includes a guide tube (32), a sealing component (33), and an adjusting component (34). The guide tube (32) is disposed on the conveying pipe (31) and is disposed at an angle to the conveying pipe (31). The guide tube (32) is in communication with the interior of the conveying pipe (31). The sealing component (33) includes a sealing part (331) and an adjusting part (332). The sealing part (331) is partially disposed inside the conveying pipe (31) and forms a discharge port between itself and the inner wall of the conveying pipe (31). The adjusting part (332) is movably disposed inside the guide pipe (32). The adjusting part (332) can drive the sealing part (331) to move inside the conveying pipe (31), thereby adjusting the size of the discharge port. The guide tube (32) is provided with a sliding groove (321), which extends along the length of the guide tube (32). One end of the adjusting member (34) is connected to the adjusting part (332), and the other end extends out of the sliding groove (321). The adjusting member (34) can slide in the sliding groove (321).

5. The annular fertilizer applicator according to claim 4, characterized in that, The feeding control device (3) further includes a limiting member, which is disposed at one end of the guide tube (32) away from the feeding tube (31). The end of the adjusting part (332) away from the feeding tube (31) can abut against the limiting member. The distance between the limiting member and the end of the adjusting part (332) away from the feeding tube (31) is adjustable.

6. The annular fertilizer applicator according to claim 5, characterized in that, The limiting component is a knob cover (36), and a scale thread (322) is provided on the outer wall of the end of the guide tube (32) away from the feed tube (31). The knob cover (36) is screwed into the scale thread (322).

7. The annular fertilizer applicator according to claim 4, characterized in that, The feeding control device (3) further includes a reset assembly (35), which is disposed inside the guide tube (32). The reset assembly (35) includes a first retaining ring (351), a second retaining ring (352), and an elastic element (353). The first retaining ring (351) is movably disposed inside the guide tube (32) and located on the side of the adjusting member (34) away from the feeding tube (31). The second retaining ring (352) is fixed at the end of the guide tube (32) away from the feeding tube (31). The elastic element (353) is disposed between the first retaining ring (351) and the second retaining ring (352). The adjusting part (332) can move through the first retaining ring (351), the second retaining ring (352), and the elastic element (353).

8. The annular fertilizer applicator according to claim 4, characterized in that, A handle (37) is also provided on the outer wall of the guide tube (32), and the handle (37) is located on the side of the adjusting member (34) away from the conveying tube (31).

9. The annular fertilizer applicator according to claim 1, characterized in that, The feeding tube (4) includes an inner tube (41) and an outer tube (42). The inner tube (41) is nested inside the outer tube (42), and the inner tube (41) can slide inside the outer tube (42).

10. The annular fertilizer applicator according to claim 1, characterized in that, The annular discharge cover (5) includes an outer cover (51), an inner cover (52), and a connector (53). Both the outer cover (51) and the inner cover (52) are flared structures. The outer cover (51) covers the outside of the inner cover (52) and forms a discharge space between the outer cover (51) and the inner cover (52). The connector (53) is disposed in the discharge space and is used to connect the outer cover (51) and the inner cover (52).

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