Nutrient supply device for agricultural planting

Abstract

The invention relates to the technical field of agricultural planting, in particular to a nutrition supply device for agricultural planting, which comprises a supply mechanism, the supply mechanism comprises a barrel, a stirring rod is arranged in the barrel, the bottom of the barrel is fixedly connected with a driving part for driving the stirring rod, and the left side of the bottom of the barrel is fixedly communicated with a pump body; the output end of the pump body fixedly communicates with a drip irrigation pipe; the discharging mechanism comprises a screen plate, a partition plate is fixedly connected to the top of the interior of the barrel, the screen plate is movably connected to the top of the partition plate, a driving assembly is fixedly connected to the top of the screen plate, an attaching assembly is fixedly connected to the bottom of the partition plate, and a reset assembly is fixedly connected to the right side of the top of the partition plate. A protruding assembly is arranged on the right side of the top of the sieve plate, the sieve plate rotates in a reciprocating mode through the discharging mechanism and is matched with the partition plate to achieve uniform discharging, and meanwhile caked fertilizer is ground through the grinding mechanism.

Description

Technical Field

[0001] This invention relates to the technical field of agricultural planting, and in particular to a nutrient supply device for agricultural planting. Background Technology

[0002] In modern agricultural planting, nutrient solution replenishment is a key link to ensure high-quality and high-yield crops. Especially in large-scale greenhouse planting, precise nutrient solution ratios and uniform supply are required to meet the nutrient needs of crops at different growth stages.

[0003] Typically, a stirring device is required, such as a motor-driven stirring shaft. Through continuous stirring, the powder and granules are fully dissolved and evenly dispersed in the solvent, forming a nutrient solution with stable composition, appropriate concentration, and meeting the needs of crops at various growth stages. This nutrient solution is then precisely delivered to the crop roots through a pipeline system using drip irrigation, sprinkler irrigation, or other equipment, providing sufficient nutrients for crop growth. The nutrient solution mixing tank is the foundation for the normal operation of the entire nutrient solution supply equipment. Its mixing effect directly affects the subsequent delivery quality and utilization efficiency of the nutrient solution, which is of great significance for achieving high-quality and high-yield crops.

[0004] Powder fertilizers (such as potassium nitrate, potassium dihydrogen phosphate, and other macronutrient fertilizers, as well as magnesium sulfate and other micronutrient fertilizers) are prone to absorbing moisture and clumping in the high humidity environment of greenhouses. Existing mixing devices lack the ability to actively break up clumped fertilizers, resulting in uneven mixing. At the same time, the lack of intermittent feeding during the feeding process makes it impossible to feed powder fertilizers evenly. When the amount is large, clumping will occur during mixing. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the above-mentioned nutrient supply devices for agricultural planting, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a nutrient supply device for agricultural planting, which aims to: crush clumps and distribute the nutrient evenly.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including, A supply mechanism includes a cylinder, inside which a stirring rod is provided, and a driving component for driving the stirring rod is fixedly connected to the bottom of the cylinder. A pump body is fixedly connected to the left side of the bottom of the cylinder, and a drip irrigation pipe is fixedly connected to the output end of the pump body. A feeding mechanism includes a screen plate, a partition plate fixedly connected to the top of the inner cavity of the cylinder, the screen plate movably connected to the top of the partition plate, a driving assembly fixedly connected to the top of the screen plate, a fitting assembly fixedly connected to the bottom of the partition plate, a reset assembly fixedly connected to the right side of the top of the partition plate, and a protruding assembly provided on the right side of the top of the screen plate; and... The crushing mechanism includes a shaft frame that is slidably connected to the surface of the stirring rod, a crushing roller that is movably connected to the surface of the shaft frame, lifting components that are fixedly connected to both sides of the top of the shaft frame, and a vibration component that is fixedly connected to the top of the sieve plate.

[0009] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the driving component includes two inclined teeth, a rotating plate is slidably connected to the surface of the stirring rod, and a number of mating teeth relative to the inclined teeth are fixedly connected to the bottom of the rotating plate, the mating teeth being movably connected.

[0010] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the bonding component includes a tension spring, a rotating ring is rotatably connected to the bottom of the rotating plate, and the top end of the tension spring is fixedly connected to the bottom of the rotating ring.

[0011] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the reset component includes an arc groove, which has a plurality of arc grooves and is distributed in a ring at equal intervals. A reset block is movably connected inside the arc groove. The top of the reset block is fixedly connected to the bottom of the sieve plate. A spring is fixedly connected to the back of the reset block. The rear end of the spring is fixedly connected to the inner wall of the arc groove.

[0012] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the protruding component includes a mounting groove, a protruding plate is movably connected inside the mounting groove, and a first electric telescopic rod is fixedly connected to both sides of the bottom of the protruding plate, with the bottom of the first electric telescopic rod being fixedly connected to the bottom of the inner wall of the mounting groove.

[0013] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, a telescopic protective sleeve is fixedly connected to the bottom of the rotating plate, and the bottom of the telescopic protective sleeve is fixedly connected to the top of the sieve plate.

[0014] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the lifting assembly includes a second electric telescopic rod, a fixing plate is fixedly connected to the top of the surface of the stirring rod, and the top of the second electric telescopic rod is fixedly connected to the bottom of the fixing plate.

[0015] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the vibration component includes a grooved ring, a shaft is fixedly connected to the outer end of the shaft frame, a striking plate is movably connected to the surface of the shaft, a torsion spring is sleeved on the surface of the shaft, one end of the torsion spring is fixedly connected to the shaft frame, the other end of the torsion spring is fixedly connected to the striking plate, and the striking plate is movably connected to the grooved ring.

[0016] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, a limiting ring is movably embedded in the bottom of the rotating plate, and the bottom of the limiting ring is fixedly connected to the top of the rotating ring.

[0017] In a preferred embodiment of the nutrient supply device for agricultural planting described in this invention, the grooved ring is inclined.

[0018] The beneficial effects of this invention are: the feeding mechanism causes the screen plate to rotate back and forth and works with the partition plate to achieve uniform feeding, while the crushing mechanism crushes the lumpy fertilizer. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram provided by the present invention.

[0021] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the sieve plate provided by the present invention.

[0022] Figure 4 This is a three-dimensional exploded view of the sieve plate provided by the present invention.

[0023] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the stirring rod provided by the present invention. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1 Reference Figures 1-5 In the first embodiment of the present invention, a nutrient supply device for agricultural planting is provided, which achieves uniform feeding through the feeding mechanism 200.

[0029] The supply mechanism 100 includes a cylinder 101, a stirring rod 102 is provided inside the cylinder 101, a driving component 103 for driving the stirring rod 102 is fixedly connected to the bottom of the cylinder 101, a pump body 104 is fixedly connected to the left side of the bottom of the cylinder 101, and a drip irrigation pipe 105 is fixedly connected to the output end of the pump body 104. The feeding mechanism 200 includes a screen plate 201. A partition plate 202 is fixedly connected to the top of the inside of the cylinder 101. The screen plate 201 is movably connected to the top of the partition plate 202. A drive assembly 203 is fixedly connected to the top of the screen plate 201. A fitting assembly 204 is fixedly connected to the bottom of the partition plate 202. A reset assembly 205 is fixedly connected to the right side of the top of the partition plate 202. A protrusion assembly 206 is provided on the right side of the top of the screen plate 201.

[0030] The drive assembly 203 includes two inclined teeth 203a. A rotating plate 203b is slidably connected to the surface of the stirring rod 102. A number of mating teeth 203c relative to the inclined teeth 203a are fixedly connected to the bottom of the rotating plate 203b. The mating teeth 203c are movably connected.

[0031] The bonding assembly 204 includes a tension spring 204a, and a rotating ring 204b is rotatably connected to the bottom of the rotating plate 203b. The top end of the tension spring 204a is fixedly connected to the bottom of the rotating ring 204b.

[0032] The reset assembly 205 includes an arc groove 205a, which has a plurality of arc grooves and is distributed in a ring at equal intervals. A reset block 205b is movably connected inside the arc groove 205a. The top of the reset block 205b is fixedly connected to the bottom of the sieve plate 201. A spring 205c is fixedly connected to the back of the reset block 205b. The rear end of the spring 205c is fixedly connected to the inner wall of the arc groove 205a.

[0033] The protruding component 206 includes a mounting groove 206a, a protruding plate 206b is movably connected inside the mounting groove 206a, and a first electric telescopic rod 206c is fixedly connected to both sides of the bottom of the protruding plate 206b. The bottom of the first electric telescopic rod 206c is fixedly connected to the bottom of the inner wall of the mounting groove 206a.

[0034] A telescopic protective sleeve 207 is fixedly connected to the bottom of the rotating plate 203b, and the bottom of the telescopic protective sleeve 207 is fixedly connected to the top of the sieve plate 201.

[0035] A limiting ring 208 is movably embedded in the bottom of the rotating plate 203b, and the bottom of the limiting ring 208 is fixedly connected to the top of the rotating ring 204b.

[0036] Specifically, the drive component 203 can drive the screen plate 201 to rotate.

[0037] The fitting component 204 enables the inclined tooth 203a to be tightly fitted with the fitting tooth 203c.

[0038] The reset component 205 can drive the sieve plate 201 to rotate and reset.

[0039] The protruding component 206 can increase the friction between the screen plate 201 and the fertilizer.

[0040] The retractable protective sleeve 207 can intercept fertilizer.

[0041] The use of the limiting ring 208 ensures a stable rotational connection between the rotating ring 204b and the rotating plate 203b.

[0042] Furthermore, the proportioned powder fertilizer is evenly poured onto the sieve plate 201.

[0043] Start the drive unit 103, so that the stirring rod 102 drives the rotating plate 203b to rotate, so that the mating teeth 203c on the rotating plate 203b fit into the inclined teeth 203a, and rotate through the friction screen plate 201.

[0044] When the sieve plate 201 rotates, it can drive the reset block 205b inside the arc groove 205a to rotate, so that the reset block 205b can squeeze the spring 205c. As the spring 205c is squeezed to its limit, the contact teeth 203c on the rotating plate 203b will separate from the inclined teeth 203a due to the upward movement of the sieve plate 201. At the same time, the tension spring 204a can drive the rotating ring 204b to move the rotating plate 203b downward through the limiting ring 208 to reset, thereby facilitating the secondary contact of the contact teeth 203c with the inclined teeth 203a.

[0045] After the mating tooth 203c separates from the inclined tooth 203a, the spring 205c can drive the reset block 205b to reset through its own elastic force, so that the screen plate 201 can be reset and rotated, thereby enabling the screen plate 201 to rotate back and forth, thus cooperating with the partition plate 202 to realize the intermittent feeding of fertilizer.

[0046] The stirring rod 102 rotates continuously, thoroughly stirring the fertilizer and water at the bottom of the cylinder 101 to form a uniform nutrient solution. At the same time, the telescopic protective sleeve 207 prevents fertilizer from entering the transmission components.

[0047] At the same time, the first electric telescopic rod 206c will drive the convex plate 206b inside the mounting groove 206a to move upward, so that the convex plate 206b acts as a blocking structure, driving the fertilizer on the screen plate 201 to spread evenly to both sides, avoiding local accumulation.

[0048] Example 2 Reference Figures 1-5 In a second embodiment of the present invention, a nutrient supply device for agricultural planting is provided, which crushes clumped fertilizer through a crushing mechanism 300.

[0049] The crushing mechanism 300 includes a shaft frame 301, which is slidably connected to the surface of the stirring rod 102. A crushing roller 302 is movably connected to the surface of the shaft frame 301. Lifting components 303 are fixedly connected to both sides of the top of the shaft frame 301. A vibration component 304 is fixedly connected to the top of the sieve plate 201.

[0050] The lifting assembly 303 includes a second electric telescopic rod 303a, a fixing plate 303b is fixedly connected to the top of the surface of the stirring rod 102, and the top of the second electric telescopic rod 303a is fixedly connected to the bottom of the fixing plate 303b.

[0051] The vibration assembly 304 includes a grooved ring 304a, a shaft 304b fixedly connected to the outer end of the shaft frame 301, a striking plate 304c movably connected to the surface of the shaft 304b, a torsion spring 304d sleeved on the surface of the shaft 304b, one end of the torsion spring 304d being fixedly connected to the shaft frame 301, the other end of the torsion spring 304d being fixedly connected to the striking plate 304c, and the striking plate 304c being movably connected to the grooved ring 304a.

[0052] The grooved ring 304a is set at an angle.

[0053] Specifically, the lifting assembly 303 can control the rolling roller 302 to move up and down.

[0054] The vibration assembly 304 enables the crushing roller 302 to vibrate the screen plate 201 when crushing agglomerated fertilizer.

[0055] Furthermore, when fertilizer clumps, the second electric telescopic rod 303a is activated, causing the shaft frame 301 to move downwards. Simultaneously, the first electric telescopic rod 206c is activated, causing the convex plate 206b to enter the mounting groove 206a. After the shaft frame 301 moves downwards, it can drive the crushing roller 302 to fit against the screen plate 201. This allows the rotating stirring rod 102 to drive the shaft frame 301 to rotate, causing the crushing roller 302 on the shaft frame 301 to crush the clumped fertilizer on the screen plate 201.

[0056] As the shaft bracket 301 rotates, the striking plate 304c on the surface of the shaft 304b repeatedly strikes the inclined groove ring 304a under the action of the torsion spring 304d, causing the screen plate 201 to vibrate, thereby preventing the crushing roller 302 from clogging the screen plate 201 when crushing the clumped fertilizer.

[0057] The remaining structure is the same as that in Example 1.

[0058] Example 3 Reference Figures 1-5 This is the third embodiment of the present invention, which differs from the second embodiment in that it is a nutrient supply device for agricultural planting.

[0059] Pour the prepared powder fertilizer evenly onto the sieve plate 201.

[0060] Start the drive unit 103, so that the stirring rod 102 drives the rotating plate 203b to rotate, so that the mating teeth 203c on the rotating plate 203b fit into the inclined teeth 203a, and rotate through the friction screen plate 201.

[0061] When the sieve plate 201 rotates, it can drive the reset block 205b inside the arc groove 205a to rotate, so that the reset block 205b can squeeze the spring 205c. As the spring 205c is squeezed to its limit, the contact teeth 203c on the rotating plate 203b will separate from the inclined teeth 203a due to the upward movement of the sieve plate 201. At the same time, the tension spring 204a can drive the rotating ring 204b to move the rotating plate 203b downward through the limiting ring 208 to reset, thereby facilitating the secondary contact of the contact teeth 203c with the inclined teeth 203a.

[0062] After the mating tooth 203c separates from the inclined tooth 203a, the spring 205c can drive the reset block 205b to reset through its own elastic force, so that the screen plate 201 can be reset and rotated, thereby enabling the screen plate 201 to rotate back and forth, thus cooperating with the partition plate 202 to realize the intermittent feeding of fertilizer.

[0063] The stirring rod 102 rotates continuously, thoroughly stirring the fertilizer and water at the bottom of the cylinder 101 to form a uniform nutrient solution. At the same time, the telescopic protective sleeve 207 prevents fertilizer from entering the transmission components.

[0064] At the same time, the first electric telescopic rod 206c will drive the convex plate 206b inside the mounting groove 206a to move upward, so that the convex plate 206b acts as a blocking structure, driving the fertilizer on the screen plate 201 to spread evenly to both sides, avoiding local accumulation.

[0065] When fertilizer clumps, the second electric telescopic rod 303a is activated, causing the shaft frame 301 to move downwards. Simultaneously, the first electric telescopic rod 206c is activated, causing the convex plate 206b to enter the mounting groove 206a. After the shaft frame 301 moves downwards, it can drive the crushing roller 302 to fit against the screen plate 201. This allows the rotating stirring rod 102 to drive the shaft frame 301 to rotate, causing the crushing roller 302 on the shaft frame 301 to crush the clumped fertilizer on the screen plate 201.

[0066] As the shaft bracket 301 rotates, the striking plate 304c on the surface of the shaft 304b repeatedly strikes the inclined groove ring 304a under the action of the torsion spring 304d, causing the screen plate 201 to vibrate, thereby preventing the crushing roller 302 from clogging the screen plate 201 when crushing the clumped fertilizer.

[0067] Once the nutrient solution is mixed evenly, the pump 104 is activated to deliver the nutrient solution to the crop root zone through the drip irrigation pipe 105, achieving precise nutrient supply.

[0068] In summary, the feeding mechanism 200 causes the screen plate 201 to rotate back and forth and works with the partition plate 202 to achieve uniform feeding, while the crushing mechanism 300 crushes the lumpy fertilizer.

[0069] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of the actual embodiments may be omitted, i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A nutrient supply device for agricultural planting, characterized in that: include, The supply mechanism (100) includes a cylinder (101), inside which a stirring rod (102) is provided, and a driving component (103) for driving the stirring rod (102) is fixedly connected to the bottom of the cylinder (101). A pump body (104) is fixedly connected to the left side of the bottom of the cylinder (101), and the output end of the pump body (104) is fixedly connected to a drip irrigation pipe (105). The feeding mechanism (200) includes a screen plate (201), a partition plate (202) is fixedly connected to the top of the inside of the cylinder (101), the screen plate (201) is movably connected to the top of the partition plate (202), a driving assembly (203) is fixedly connected to the top of the screen plate (201), a fitting assembly (204) is fixedly connected to the bottom of the partition plate (202), a reset assembly (205) is fixedly connected to the right side of the top of the partition plate (202), and a protruding assembly (206) is provided on the right side of the top of the screen plate (201); and, The rolling mechanism (300) includes a shaft frame (301) which is slidably connected to the surface of the stirring rod (102). A rolling roller (302) is movably connected to the surface of the shaft frame (301). Lifting components (303) are fixedly connected to both sides of the top of the shaft frame (301). A vibration component (304) is fixedly connected to the top of the sieve plate (201).

2. The nutrient supply device for agricultural planting according to claim 1, characterized in that: The drive assembly (203) includes two inclined teeth (203a). A rotating plate (203b) is slidably connected to the surface of the stirring rod (102). A number of mating teeth (203c) relative to the inclined teeth (203a) are fixedly connected to the bottom of the rotating plate (203b). The mating teeth (203c) are movably connected.

3. The nutrient supply device for agricultural planting according to claim 2, characterized in that: The bonding assembly (204) includes a tension spring (204a), and a rotating ring (204b) is rotatably connected to the bottom of the rotating plate (203b). The top end of the tension spring (204a) is fixedly connected to the bottom of the rotating ring (204b).

4. The nutrient supply device for agricultural planting according to claim 3, characterized in that: The reset assembly (205) includes an arc groove (205a), which has a plurality of arc grooves (205a) and is distributed in a ring at equal intervals. A reset block (205b) is movably connected inside the arc groove (205a). The top of the reset block (205b) is fixedly connected to the bottom of the sieve plate (201). A spring (205c) is fixedly connected to the back of the reset block (205b). The rear end of the spring (205c) is fixedly connected to the inner wall of the arc groove (205a).

5. The nutrient supply device for agricultural planting according to any one of claims 2 to 4, characterized in that: The protruding component (206) includes a mounting groove (206a), and a protruding plate (206b) is movably connected inside the mounting groove (206a). A first electric telescopic rod (206c) is fixedly connected to both sides of the bottom of the protruding plate (206b), and the bottom of the first electric telescopic rod (206c) is fixedly connected to the bottom of the inner wall of the mounting groove (206a).

6. The nutrient supply device for agricultural planting according to claim 5, characterized in that: The bottom of the rotating plate (203b) is fixedly connected to a telescopic protective sleeve (207), and the bottom of the telescopic protective sleeve (207) is fixedly connected to the top of the sieve plate (201).

7. The nutrient supply device for agricultural planting according to claim 6, characterized in that: The lifting assembly (303) includes a second electric telescopic rod (303a), and a fixing plate (303b) is fixedly connected to the top of the surface of the stirring rod (102). The top of the second electric telescopic rod (303a) is fixedly connected to the bottom of the fixing plate (303b).

8. The nutrient supply device for agricultural planting according to claim 7, characterized in that: The vibration assembly (304) includes a grooved ring (304a), a shaft (304b) is fixedly connected to the outer end of the shaft frame (301), a striking plate (304c) is movably connected to the surface of the shaft (304b), a torsion spring (304d) is sleeved on the surface of the shaft (304b), one end of the torsion spring (304d) is fixedly connected to the shaft frame (301), the other end of the torsion spring (304d) is fixedly connected to the striking plate (304c), and the striking plate (304c) is movably connected to the grooved ring (304a).

9. The nutrient supply device for agricultural planting according to claim 3, characterized in that: A limiting ring (208) is movably embedded in the bottom of the rotating plate (203b), and the bottom of the limiting ring (208) is fixedly connected to the top of the rotating ring (204b).

10. The nutrient supply device for agricultural planting according to claim 8, characterized in that: The grooved ring (304a) is inclined.

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