A fertilizer application device

Abstract

This utility model provides a fertilizer application device, belonging to the field of fertilizer application technology. The fertilizer application device includes: a housing, a first rotating shaft, a first gear, a clearance groove, an adjusting groove, a discharge hole, a discharge pipe assembly, a pressing rod assembly, and an adjusting wheel assembly. By making the adjusting wheel assembly fit against the inner wall of the adjusting groove, when the driving device drives the first rotating shaft and the first gear to rotate, the adjusting wheel assembly will roll along the inner wall of multiple adjusting grooves, thereby driving the pressing rod assembly to move up and down within the discharge pipe assembly, so that the pressing rod assembly squeezes out the fertilizer within the discharge pipe assembly, thereby achieving quantitative fertilization and improving the fertilization effect. Moreover, by setting the clearance groove on the side wall of the first gear and making the clearance groove surround the outside of the first rotating shaft, when the adjusting wheel assembly rolls along the inner wall of multiple adjusting grooves, the adjusting wheel assembly will move within the clearance groove, thereby avoiding interference between the adjusting wheel assembly and the first gear.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer application technology, specifically relating to a fertilizer application device. Background Technology

[0002] In related technologies, soil fertilization is required during the planting process on arable land.

[0003] Existing technology (authorization announcement number: CN214070640U) provides a fertilizer applicator, including a fertilizer box, a discharging assembly, a support assembly, and a pull rod assembly. The fertilizer box is a cylindrical shape with an open bottom. The discharging assembly includes a discharging bucket, a discharging pipe, and a switch component. The discharging bucket is conical and fixedly connected to the fertilizer box, while the discharging pipe is detachably connected to the discharging port. The support assembly includes a support plate, a support rod, and a pulley. The support plate is fixedly connected to the support rod, and the support rod is fixedly connected to the pulley. The pull rod assembly includes a first telescopic rod and a second telescopic rod, which are slidably connected. In this invention, the fertilizer box is supported by the support assembly, and the pulley in the support assembly allows for easy movement of the fertilizer applicator. The conical discharging bucket ensures that all fertilizer is discharged without waste. Furthermore, the fertilizer box is placed on the support plate through fixing holes, making it easy to fix and remove.

[0004] In this prior art, the effectiveness of fertilization is reduced because quantitative fertilization cannot be achieved. Utility Model Content

[0005] To address the problem of reduced fertilization effectiveness due to the inability to achieve quantitative fertilization in existing technologies, this invention provides a fertilizer application device. This device employs an adjusting wheel assembly that fits against the inner wall of an adjusting groove. When the drive device rotates the first shaft and the first gear, the adjusting wheel assembly rolls along the inner wall of multiple adjusting grooves, thereby causing the pressing rod assembly to move up and down within the discharge pipe assembly. This allows the pressing rod assembly to expel fertilizer from the discharge pipe assembly, achieving quantitative fertilization and improving fertilization effectiveness. The specific technical solution is as follows:

[0006] A fertilizer applicator includes: a housing, a first rotating shaft, a first gear, a clearance groove, an adjusting groove, a discharge hole, a discharge pipe assembly, a pressing rod assembly, and an adjusting wheel assembly; the housing is a hollow cavity; the first rotating shaft is located inside the housing and is rotatably connected to the housing; the first gear is located inside the housing and is fitted onto the outside of the first rotating shaft; the clearance groove is circular and is disposed on the side wall of the first gear, surrounding the outside of the first rotating shaft; the adjusting groove is trapezoidal, and multiple adjusting grooves are disposed inside the first gear, surrounding the first rotating shaft. The material discharge hole is located on the outside of the relief groove, and multiple adjustment grooves are connected to the relief groove; the discharge pipe assembly is located at the bottom of the housing; the discharge pipe assembly is a hollow cavity with openings at both ends, the discharge pipe assembly is installed at the bottom of the housing, and the discharge pipe assembly is connected to the discharge hole; one end of the pressure rod assembly is located inside the housing, the pressure rod assembly is located on one side of the first gear, the pressure rod assembly passes through the discharge hole, and the other end of the pressure rod assembly is located inside the discharge pipe assembly; the adjustment wheel assembly is located inside the housing, the adjustment wheel assembly is connected to the pressure rod assembly, and the adjustment wheel assembly is in contact with the inner wall of the adjustment groove.

[0007] In addition, the fertilizer application device in the above-mentioned technical solution provided by this utility model may also have the following additional technical features:

[0008] In the above technical solution, the fertilizer application device further includes: a second rotating shaft and a second gear; the second rotating shaft is located inside the housing, the second rotating shaft is rotatably connected to the housing, and the second rotating shaft is located above the first rotating shaft; the second gear is fitted on the outside of the second rotating shaft, and the second gear meshes with the first gear; wherein, the number of teeth of the second gear is less than the number of teeth of the first gear.

[0009] In the above technical solution, the pressure rod assembly includes: a pressure rod body and a pressure head; one end of the pressure rod body is connected to the adjusting wheel assembly, the pressure rod body passes through the discharge hole, and the other end of the pressure rod body is located inside the discharge pipe assembly; the pressure head is located inside the discharge pipe assembly, and the pressure head is connected to the other end of the pressure rod body; wherein, the diameter of the pressure head is larger than the diameter of the pressure rod body.

[0010] In the above technical solution, the pressure rod assembly further includes: a pressure seat and a spring. The pressure seat is located inside the housing and is fitted on the outside of the pressure rod body, and the pressure seat is located above the discharge hole. The spring is fitted on the outside of the pressure rod body, one end of the spring is connected to the pressure seat, and the other end of the spring is connected to the housing.

[0011] In the above technical solution, the discharge pipe assembly includes: a mounting plate, a discharge pipe body, and a feeding pipe; the mounting plate is installed at the bottom of the housing; the discharge pipe body is a hollow cavity with openings at both ends, one end of the discharge pipe body is installed on the mounting plate, and the discharge pipe body is connected to the discharge hole; the feeding pipe is a hollow cavity with openings at both ends, and one end of the feeding pipe is connected to the side wall of the discharge pipe body.

[0012] In the above technical solution, the discharge pipe assembly also includes: a discharge nozzle; the discharge nozzle is a hollow cavity with openings at both ends, the cross-section of the discharge nozzle is trapezoidal, the discharge nozzle is connected to the bottom of the discharge pipe body, and the discharge nozzle is located below the pressing head.

[0013] In the above technical solution, the discharge pipe assembly further includes: a guide pipe and a guide part; the guide pipe is a hollow cavity with openings at both ends, the guide pipe is connected to the mounting plate, the guide pipe is located inside the discharge pipe body, and the guide pipe is arranged around the outside of the pressure rod body; at least two guide parts are arranged on the inner wall of the guide pipe, and at least two guide parts are simultaneously in contact with the outer wall of the pressure rod body.

[0014] In the above technical solution, the adjusting wheel assembly includes: a connecting rod and an adjusting wheel body; the connecting rod is connected to the pressure rod body, the connecting rod is perpendicular to the pressure rod body, and the connecting rod is located above the adjusting groove; the adjusting wheel body is rotatably connected to the connecting rod, and the adjusting wheel body is in contact with the inner wall of the adjusting groove.

[0015] The fertilizer application device of this utility model has the following advantages compared with the prior art:

[0016] 1. By ensuring the adjusting wheel assembly fits against the inner wall of the adjusting groove, when the drive device rotates the first shaft and the first gear, the adjusting wheel assembly rolls along the inner wall of multiple adjusting grooves. This causes the pressure rod assembly to move up and down within the discharge pipe assembly, squeezing out fertilizer from the discharge pipe assembly and achieving quantitative fertilization, thus improving the fertilization effect. Furthermore, by placing the clearance groove on the side wall of the first gear and positioning it around the outside of the first shaft, the adjusting wheel assembly moves within the clearance groove as it rolls along the inner wall of the multiple adjusting grooves. This avoids interference between the adjusting wheel assembly and the first gear, improving the user experience.

[0017] 2. By mounting the second gear on the outside of the second rotating shaft and meshing it with the first gear, when the drive device is connected to the second rotating shaft and drives the second rotating shaft to rotate, the second rotating shaft will drive the first rotating shaft to rotate through the second gear and the first gear, thereby driving the pressure rod assembly to move up and down within the discharge pipe assembly. By making the number of teeth of the second gear less than the number of teeth of the first gear, the output speed of the drive device is reduced, thereby increasing the distance between two adjacent fertilization positions, thus avoiding fertilizer waste due to overly concentrated fertilization positions, and improving the fertilization effect.

[0018] 3. By connecting the pressing head to the other end of the pressing rod body, and making the diameter of the pressing head larger than the diameter of the pressing rod body, the contact area between the pressing rod body and the fertilizer is increased, thereby ensuring that the pressing rod body can squeeze out the fertilizer and further improve the fertilization effect.

[0019] 4. By fitting a spring onto the outside of the pressing rod body, connecting one end of the spring to the pressing seat, and connecting the other end of the spring to the housing, the housing supports the pressing seat and the pressing rod body through the spring. This ensures that when the pressing rod body moves upward, the spring is in a stretched state, and the force generated by the elastic deformation of the spring promotes the pressing rod body to move downward, ensuring that the pressing head extrudes the fertilizer, thereby improving the user experience of the product.

[0020] 5. By connecting one end of the feeding pipe to the side wall of the discharge pipe body, the operator can pour fertilizer into the discharge pipe body through the feeding pipe, thereby improving the user experience of the product.

[0021] 6. By setting multiple guide parts on the inner wall of the guide tube and making the multiple guide parts simultaneously fit against the outer wall of the pressing rod body, the guide tube guides the pressing rod body through the multiple guide parts, thereby preventing the pressing rod body from deviating when moving up and down, and improving the pressing effect of the pressing rod body and the pressing head on compressing fertilizer.

[0022] 7. By rotatably connecting the adjusting wheel body to the connecting rod and making the adjusting wheel body fit against the inner wall of the adjusting groove, the adjusting wheel body can roll along the inner wall of the adjusting groove when the first gear rotates, thereby driving the connecting rod and the pressure rod body to move up and down. Attached Figure Description

[0023] Figure 1 This is one of the perspective views of a fertilizer application device according to this utility model;

[0024] Figure 2 This is a second perspective view of a fertilizer application device according to this utility model;

[0025] Figure 3This is the third perspective view of a fertilizer application device according to this utility model;

[0026] Figure 4 for Figure 3 Enlarged view of a portion at point A;

[0027] Figure 5 This is the fourth perspective view of a fertilizer application device according to this utility model;

[0028] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0029] 10 Housing, 11 First rotating shaft, 12 First gear, 13 Relief groove, 14 Adjustment groove, 15 Discharge hole, 16 Discharge pipe assembly, 161 Mounting plate, 162 Discharge pipe body, 163 Feeding pipe, 164 Discharge nozzle, 165 Guide pipe, 166 Guide part, 17 Pressure rod assembly, 171 Pressure rod body, 172 Pressure head, 173 Pressure seat, 174 Spring, 18 Adjusting wheel assembly, 181 Connecting rod, 182 Adjusting wheel body, 19 Second rotating shaft, 20 Second gear. Detailed Implementation

[0030] The following are specific implementation cases and appendices. Figures 1 to 5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0031] A fertilizer application device, such as Figures 1 to 5As shown, the fertilizer application device includes: a housing 10, a first rotating shaft 11, a first gear 12, a clearance groove 13, an adjusting groove 14, a discharge hole 15, a discharge pipe assembly 16, a pressing rod assembly 17, and an adjusting wheel assembly 18; the housing 10 is a hollow cavity; the first rotating shaft 11 is located inside the housing 10 and is rotatably connected to the housing 10; the first gear 12 is located inside the housing 10 and is fitted onto the outside of the first rotating shaft 11; the clearance groove 13 is circular, located on the side wall of the first gear 12, and surrounds the outside of the first rotating shaft 11; the adjusting groove 14 is trapezoidal, and multiple adjusting grooves 14 are located inside the first gear 12 and surround the first rotating shaft 11. The discharge port 15 is located at the bottom of the housing 10; the discharge pipe assembly 16 is a hollow cavity with openings at both ends, and is installed at the bottom of the housing 10 and connected to the discharge port 15; one end of the pressure rod assembly 17 is located inside the housing 10, the pressure rod assembly 17 is located on one side of the first gear 12, the pressure rod assembly 17 passes through the discharge port 15, and the other end of the pressure rod assembly 17 is located inside the discharge pipe assembly 16; the adjusting wheel assembly 18 is located inside the housing 10, the adjusting wheel assembly 18 is connected to the pressure rod assembly 17, and the adjusting wheel assembly 18 is in contact with the inner wall of the adjusting groove 14.

[0032] By setting the housing 10 as a hollow cavity, a receiving space is provided within the housing 10. By rotatably connecting the first rotating shaft 11 to the housing 10 and mounting the first gear 12 on the outside of the first rotating shaft 11, the housing 10 supports the first rotating shaft 11, allowing the first rotating shaft 11 to rotate within the housing 10, thereby enabling the first rotating shaft 11 to drive the first gear 12 to rotate within the housing 10. By providing a circular relief groove 13 on the side wall of the first gear 12, with the relief groove 13 surrounding the outside of the first rotating shaft 11, the remaining components can be embedded within the first gear 12 while ensuring that the first rotating shaft 11 can drive the first gear 12 to rotate. By providing multiple adjustment grooves 14 within the first gear 12, with the multiple adjustment grooves 14 surrounding the outside of the relief groove 13, the multiple adjustment grooves 14 can communicate with the relief groove 13. By setting the discharge hole 15 at the bottom of the housing 10, installing the discharge pipe assembly 16 at the bottom of the housing 10, and connecting the discharge pipe assembly 16 to the discharge hole 15, the housing 10 can support the discharge pipe assembly 16, thereby enabling the interior of the housing 10 to communicate with the discharge pipe assembly 16. By placing one end of the pressure rod assembly 17 inside the housing 10, allowing the pressure rod assembly 17 to pass through the discharge hole 15, and placing the other end of the pressure rod assembly 17 inside the discharge pipe assembly 16, the pressure rod assembly 17 can move up and down simultaneously within the housing 10 and the discharge pipe assembly 16. By connecting the adjusting wheel assembly 18 to the pressure rod assembly 17 and making the adjusting wheel assembly 18 fit against the inner wall of the adjusting groove 14, the adjusting wheel assembly 18 and the pressure rod assembly 17 can move synchronously, thereby enabling the adjusting wheel assembly 18 to move along the inner wall of the adjusting groove 14, and thus driving the pressure rod assembly 17 to move up and down.

[0033] When using the product, first install the product at the bottom of the fertilizer application vehicle and connect the first rotating shaft 11 to the drive device (indirect connection); then, place the fertilizer in the discharge pipe assembly 16; when the vehicle moves, the drive device can drive the first rotating shaft 11 to rotate, thereby driving the first gear 12 to rotate; since the adjusting wheel assembly 18 is in contact with the inner wall of the adjusting groove 14, when the first gear 12 rotates, the adjusting wheel assembly 18 will roll along the inner wall of the multiple adjusting grooves 14, thereby driving the pressing rod assembly 17 to move up and down in the discharge pipe assembly 16, thereby causing the pressing rod assembly 17 to squeeze the fertilizer in the discharge pipe assembly 16 to fertilize the soil.

[0034] With the above structure, by making the adjusting wheel assembly 18 fit against the inner wall of the adjusting groove 14, when the drive device drives the first rotating shaft 11 and the first gear 12 to rotate, the adjusting wheel assembly 18 will roll along the inner wall of the multiple adjusting grooves 14, thereby driving the pressing rod assembly 17 to move up and down within the discharge pipe assembly 16, so that the pressing rod assembly 17 squeezes out the fertilizer within the discharge pipe assembly 16, thereby achieving quantitative fertilization and improving the fertilization effect. Moreover, by setting the relief groove 13 on the side wall of the first gear 12 and making the relief groove 13 surround the outside of the first rotating shaft 11, when the adjusting wheel assembly 18 rolls along the inner wall of the multiple adjusting grooves 14, the adjusting wheel assembly 18 will move within the relief groove 13, thereby avoiding interference between the adjusting wheel assembly 18 and the first gear 12 and improving the user experience of the product.

[0035] Specifically, the first rotating shaft 11 can also be connected (indirectly connected) to the vehicle's rollers so that when the vehicle moves on the ground, the rolling rollers drive the first rotating shaft 11 to rotate, thereby fertilizing the soil during the vehicle's movement.

[0036] Specifically, the first gear 12 is fitted onto the outside of the first rotating shaft 11 via a keyway connection.

[0037] In embodiments of this utility model, such as Figures 1 to 5 As shown, the fertilizer application device also includes: a second rotating shaft 19 and a second gear 20; the second rotating shaft 19 is located inside the housing 10, the second rotating shaft 19 is rotatably connected to the housing 10, and the second rotating shaft 19 is located above the first rotating shaft 11; the second gear 20 is fitted on the outside of the second rotating shaft 19, and the second gear 20 meshes with the first gear 12; wherein, the number of teeth of the second gear 20 is less than the number of teeth of the first gear 12.

[0038] By rotatably connecting the second rotating shaft 19 to the housing 10 and positioning the second rotating shaft 19 above the first rotating shaft 11, the housing 10 can support the second rotating shaft 19, allowing it to rotate within the housing 10. By mounting the second gear 20 on the outside of the second rotating shaft 19 and meshing it with the first gear 12, when the drive device is connected to the second rotating shaft 19 and drives it to rotate, the second rotating shaft 19 will drive the first rotating shaft 11 to rotate via the second gear 20 and the first gear 12, thereby causing the pressure rod assembly 17 to move up and down within the discharge pipe assembly 16. Simultaneously, by making the number of teeth on the second gear 20 less than the number of teeth on the first gear 12, the output speed of the drive device is reduced, thereby increasing the distance between two adjacent fertilization positions. This avoids fertilizer waste due to overly concentrated fertilization positions, thus improving the fertilization effect.

[0039] Specifically, the second gear 20 is fitted onto the outside of the second shaft 19 via a keyway connection.

[0040] In embodiments of this utility model, such as Figures 1 to 5 As shown, the pressure rod assembly 17 includes: a pressure rod body 171 and a pressure head 172; one end of the pressure rod body 171 is connected to the adjusting wheel assembly 18, the pressure rod body 171 passes through the discharge hole 15, and the other end of the pressure rod body 171 is located inside the discharge pipe assembly 16; the pressure head 172 is located inside the discharge pipe assembly 16, and the pressure head 172 is connected to the other end of the pressure rod body 171; wherein, the diameter of the pressure head 172 is larger than the diameter of the pressure rod body 171.

[0041] By connecting one end of the pressing rod body 171 to the adjusting wheel assembly 18, the pressing rod body 171 passes through the discharge hole 15, and the other end of the pressing rod body 171 is located inside the discharge pipe assembly 16. This allows the adjusting wheel assembly 18 to drive the pressing rod body 171 to move up and down within the discharge pipe assembly 16 when the adjusting wheel assembly 18 rolls along the inner wall of the adjusting groove 14. By connecting the pressing head 172 to the other end of the pressing rod body 171, and making the diameter of the pressing head 172 larger than the diameter of the pressing rod body 171, the contact area between the pressing rod body 171 and the fertilizer is increased, thereby ensuring that the pressing rod body 171 can squeeze out the fertilizer and further improve the fertilization effect.

[0042] In embodiments of this utility model, such as Figures 1 to 5 As shown, the pressure rod assembly 17 also includes a pressure seat 173 and a spring 174. The pressure seat 173 is located inside the housing 10 and is fitted on the outside of the pressure rod body 171, and is located above the discharge hole 15. The spring 174 is fitted on the outside of the pressure rod body 171, one end of the spring 174 is connected to the pressure seat 173, and the other end of the spring 174 is connected to the housing 10.

[0043] By fitting the pressing seat 173 onto the outside of the pressing rod body 171 and positioning the pressing seat 173 above the discharge hole 15, the pressing seat 173 and the pressing rod body 171 can move up and down synchronously. By fitting the spring 174 onto the outside of the pressing rod body 171, connecting one end of the spring 174 to the pressing seat 173, and connecting the other end of the spring 174 to the housing 10, the housing 10 can support the pressing seat 173 and the pressing rod body 171 through the spring 174. This ensures that when the pressing rod body 171 moves upward, the spring 174 is in a stretched state, and the force generated by the elastic deformation of the spring 174 promotes the pressing rod body 171 to move downward, ensuring that the pressing head 172 extrudes the fertilizer, thereby improving the user experience of the product.

[0044] In embodiments of this utility model, such as Figures 1 to 5 As shown, the discharge pipe assembly 16 includes: a mounting plate 161, a discharge pipe body 162, and a feeding pipe 163; the mounting plate 161 is installed at the bottom of the housing 10; the discharge pipe body 162 is a hollow cavity with openings at both ends, one end of the discharge pipe body 162 is installed on the mounting plate 161, and the discharge pipe body 162 is connected to the discharge hole 15; the feeding pipe 163 is a hollow cavity with openings at both ends, and one end of the feeding pipe 163 is connected to the side wall of the discharge pipe body 162.

[0045] By installing the mounting plate 161 at the bottom of the housing 10 and welding one end of the discharge pipe body 162 onto the mounting plate 161, the mounting plate 161 supports the discharge pipe body 162. By connecting one end of the feeding pipe 163 to the side wall of the discharge pipe body 162, the operator can pour fertilizer into the discharge pipe body 162 through the feeding pipe 163, thereby improving the user experience of the product.

[0046] In embodiments of this utility model, such as Figures 1 to 5 As shown, the discharge pipe assembly 16 also includes a discharge nozzle 164; the discharge nozzle 164 is a hollow cavity with openings at both ends, the cross-section of the discharge nozzle 164 is trapezoidal, the discharge nozzle 164 is connected to the bottom of the discharge pipe body 162, and the discharge nozzle 164 is located below the pressing head 172.

[0047] By connecting the trapezoidal discharge nozzle 164 to the bottom of the discharge pipe body 162 and positioning the discharge nozzle 164 below the pressing head 172, the fertilizer extruded by the pressing head 172 can be discharged from the discharge nozzle 164. At the same time, the discharge diameter of the discharge pipe body 162 can be reduced, thereby reducing the amount of fertilizer discharged. This allows for precise control of the fertilizer application rate, improving the user experience of the product.

[0048] Specifically, the fertilizer has a certain degree of viscosity, so when the fertilizer is placed inside the discharge pipe body 162, the fertilizer adheres to the discharge pipe body 162 and the discharge nozzle 164, and the fertilizer will not flow out from the discharge nozzle 164 due to gravity.

[0049] In embodiments of this utility model, such as Figures 1 to 5 As shown, the discharge pipe assembly 16 further includes: a guide pipe 165 and a guide portion 166; the guide pipe 165 is a hollow cavity with openings at both ends, the guide pipe 165 is connected to the mounting plate 161, the guide pipe 165 is located inside the discharge pipe body 162, and the guide pipe 165 is arranged around the outside of the pressure rod body 171; at least two guide portions 166 are provided on the inner wall of the guide pipe 165, and at least two guide portions 166 are simultaneously in contact with the outer wall of the pressure rod body 171.

[0050] By welding the guide tube 165 to the mounting plate 161, the guide tube 165 is located inside the discharge pipe body 162 and is arranged around the outside of the pressing rod body 171, so that the pressing rod body 171 can move up and down inside the guide tube 165. By setting multiple guide parts 166 on the inner wall of the guide tube 165 and making multiple guide parts 166 simultaneously fit against the outer wall of the pressing rod body 171, the guide tube 165 guides the pressing rod body 171 through the multiple guide parts 166, thereby preventing the pressing rod body 171 from deviating when moving up and down, so as to improve the effect of the pressing rod body 171 and the pressing head 172 in squeezing fertilizer.

[0051] In embodiments of this utility model, such as Figures 1 to 5 As shown, the adjusting wheel assembly 18 includes: a connecting rod 181 and an adjusting wheel body 182; the connecting rod 181 is connected to the pressure rod body 171, the connecting rod 181 is perpendicular to the pressure rod body 171, and the connecting rod 181 is located above the adjusting groove 14; the adjusting wheel body 182 is rotatably connected to the connecting rod 181, and the adjusting wheel body 182 is in contact with the inner wall of the adjusting groove 14.

[0052] By connecting the connecting rod 181 to the pressure rod body 171 and making the connecting rod 181 perpendicular to the pressure rod body 171, the connecting rod 181 and the pressure rod body 171 can move up and down synchronously. By rotatably connecting the adjusting wheel body 182 to the connecting rod 181 and making the adjusting wheel body 182 fit against the inner wall of the adjusting groove 14, the adjusting wheel body 182 can roll along the inner wall of the adjusting groove 14 when the first gear 12 rotates, thereby driving the connecting rod 181 and the pressure rod body 171 to move up and down.

[0053] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0054] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fertilizer application apparatus characterized by, The fertilizer application device includes: The housing is a hollow cavity; A first rotating shaft is located inside the housing and is rotatably connected to the housing. The first gear is located inside the housing and is mounted on the outside of the first rotating shaft; The clearance groove is circular and is disposed on the side wall of the first gear, and is arranged around the outside of the first rotating shaft. The adjustment groove is trapezoidal, and multiple adjustment grooves are disposed inside the first gear. The multiple adjustment grooves are arranged around the outside of the relief groove, and the multiple adjustment grooves are connected to the relief groove. A discharge hole is provided at the bottom of the housing; A discharge pipe assembly, wherein the discharge pipe assembly is a hollow cavity with openings at both ends, the discharge pipe assembly is installed at the bottom of the housing, and the discharge pipe assembly is connected to the discharge hole; A pressure rod assembly, one end of which is located inside the housing, the pressure rod assembly is located on one side of the first gear, the pressure rod assembly passes through the discharge hole, and the other end of which is located inside the discharge pipe assembly; An adjusting wheel assembly is located inside the housing, is connected to the pressure rod assembly, and is in contact with the inner wall of the adjusting groove.

2. A fertilizer applicator according to claim 1, wherein The fertilizer application device also includes: A second rotating shaft is located inside the housing and is rotatably connected to the housing, and is located above the first rotating shaft; The second gear is mounted on the outside of the second shaft and meshes with the first gear. The number of teeth on the second gear is less than the number of teeth on the first gear.

3. A fertilizer applicator according to claim 1 wherein, The pressure bar assembly includes: The pressure rod body has one end connected to the adjusting wheel assembly, the pressure rod body passes through the discharge hole, and the other end of the pressure rod body is located inside the discharge pipe assembly; A pressure head is located inside the discharge pipe assembly and is connected to the other end of the pressure rod body; The diameter of the pressing head is larger than the diameter of the pressing rod body.

4. A fertilizer applicator according to claim 3, wherein The pressure bar assembly also includes: A pressure seat is located inside the housing, the pressure seat is fitted onto the outside of the pressure rod body, and the pressure seat is located above the discharge hole; A spring is fitted onto the outside of the pressure rod body, with one end of the spring connected to the pressure seat and the other end of the spring connected to the housing.

5. A fertilizer applicator according to claim 4, wherein The discharge pipe assembly includes: Mounting plate, which is mounted on the bottom of the housing; The discharge pipe body is a hollow cavity with openings at both ends. One end of the discharge pipe body is mounted on the mounting plate, and the discharge pipe body is connected to the discharge hole. The feeding pipe is a hollow cavity with openings at both ends, and one end of the feeding pipe is connected to the side wall of the discharge pipe body.

6. A fertilizer applicator according to claim 5, wherein The discharge pipe assembly also includes: The discharge nozzle is a hollow cavity with openings at both ends. The cross-section of the discharge nozzle is trapezoidal. The discharge nozzle is connected to the bottom of the discharge pipe body and is located below the pressing head.

7. A fertilizer applicator according to claim 6 wherein, The discharge pipe assembly also includes: The guide tube is a hollow cavity with openings at both ends. The guide tube is connected to the mounting plate. The guide tube is located inside the discharge pipe body and is arranged around the outside of the pressure rod body. The guide portion, at least two of the guide portions are disposed on the inner wall of the guide tube, and at least two of the guide portions are simultaneously in contact with the outer wall of the pressure rod body.

8. A fertilizer applicator according to claim 3 wherein, The adjusting wheel assembly includes: A connecting rod is connected to the body of the pressure rod, the connecting rod is perpendicular to the body of the pressure rod, and the connecting rod is located above the adjusting groove; The adjusting wheel body is rotatably connected to the connecting rod, and the adjusting wheel body is in contact with the inner wall of the adjusting groove.

Images