Topdressing device for seedbed breeding

Abstract

The utility model discloses a topdressing device for seedbed breeding, and relates to the technical field of agricultural machinery. The seedbed is arranged at the top of the mounting frame; the transverse components are symmetrically arranged at the tops of two ends of the mounting frame; the movable mounting frame is arranged between the transverse assemblies, and the transverse assemblies are matched with the movable mounting frame; the longitudinal topdressing mechanism is arranged in the movable mounting frame; the material conveying mechanism is arranged at one end of the seedbed and is matched with the longitudinal topdressing mechanism; the material mixing assembly is arranged in the material conveying mechanism; and the control panel is arranged on one side of the top of the mounting frame. Through the arrangement of the transverse assembly and the longitudinal topdressing mechanism, topdressing can be carried out according to the positions of seeds planted on a seedbed, so that fertilization is uniform in the topdressing process, and the growth periods of the seeds are ensured to be consistent, so that the topdressing precision and uniformity are improved, and the flexibility and adaptability of topdressing work are improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a topdressing device for seedbed breeding. Background Technology

[0002] Seedbed breeding is a crucial foundational technique in plant cultivation and breeding. It refers to the practice of seed germination, seedling growth, and initial cultivation in a seedbed under artificially controlled environmental conditions. The aim is to provide a suitable growth environment for plant seeds or seedlings, promoting their healthy development. Since seeds require multiple fertilizations during their growth process, topdressing devices are used to apply additional fertilizer to improve seed quality and the overall growth environment.

[0003] While existing topdressing devices possess the function of applying fertilizer, they suffer from inaccuracies and uneven fertilization when applying fertilizer to seeds due to the significant manual intervention involved. This results in inconsistent seed growth, impacting management time and product quality.

[0004] In addition, during the process of topdressing seeds by spraying, the water and fertilizer are mixed and transported unevenly, resulting in solidification and sedimentation. This affects the efficiency of topdressing, leading to fertilizer waste and reduced quality.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a topdressing device for seedbed breeding to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A topdressing device for seedbed breeding includes a mounting frame; a seedbed disposed on top of the mounting frame; transverse components symmetrically disposed on the tops of both ends of the mounting frame; a movable mounting frame disposed between the transverse components, with the transverse components cooperating with the movable mounting frame; a longitudinal topdressing mechanism disposed inside the movable mounting frame; a feeding mechanism disposed at one end of the seedbed and cooperating with the longitudinal topdressing mechanism; a mixing component disposed inside the feeding mechanism; and a control panel disposed on one side of the top of the mounting frame.

[0009] Furthermore, to improve the accuracy of topdressing, the horizontal component includes protective shells at both ends of the top of the mounting frame. Threaded rods are installed inside the protective shells, and a servo motor is connected to each threaded rod through the shell. A protective groove is provided on one side of the protective shell. Several bristles that abut against the movable mounting frame are provided at the top and bottom of the groove. The movable mounting frame is fitted onto the two threaded rods.

[0010] Furthermore, to improve the accuracy and uniformity of topdressing, thereby enhancing the flexibility and adaptability of the topdressing work, the longitudinal topdressing mechanism includes a drive shaft housed inside a movable mounting frame. One end of the drive shaft is connected to a gear, which meshes with a rack. A connecting block is connected to the bottom of the rack, and sliding grooves are provided on both sides of the bottom of the connecting block. An I-beam is connected to the bottom of the connecting block, and a ring support frame is provided at the bottom of the I-beam. A fertilizer tank is fitted onto the ring support frame, and a nozzle is connected to the bottom of the fertilizer tank. Several first spray nozzles are opened at the bottom of the nozzle, and several inclined tubes are provided on the outer circumference of the bottom of the nozzle, with several second spray holes opened on the inclined tubes. A support plate is provided on the top of one side of the I-beam, and a support block is provided at the bottom of the support plate. The other end of the drive shaft passes through the movable mounting frame and is connected to a servo motor. The diameter of the first spray nozzle is larger than the diameter of the second spray hole. A slider that mates with the sliding grooves is provided at the bottom of the movable mounting frame.

[0011] Furthermore, to improve the efficiency of fertilizer water delivery, the feeding mechanism includes a placement plate at one end of the seedbed, a storage box on top of the placement plate, a water pump inside the storage box, a flexible hose connected to the water pump, and a connecting pipe at one end of the flexible hose; a solenoid valve is installed on top of the storage box, and a feeding pipe is connected to the top of the solenoid valve. The connecting pipe has an I-shaped structure and connects to the fertilizer tank, with a support block cooperating with the connecting pipe.

[0012] Furthermore, to improve the effect of topdressing and effectively prevent fertilizer solidification and sedimentation while ensuring its fluidity, the mixing assembly includes a first mixing roller installed inside the storage tank, which is connected to a servo motor. A second mixing roller is installed inside the fertilizer tank.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By setting up horizontal components and vertical topdressing mechanisms, topdressing can be carried out according to the position of the seeds planted in the seedbed, so that the fertilizer is applied evenly during the topdressing process, ensuring that the seed growth period is consistent, thereby improving the accuracy and uniformity of topdressing, and improving the flexibility and adaptability of topdressing work.

[0015] 2. By setting up a conveying mechanism, a mixing component, and a second mixing roller, the mixing component is used for preliminary mixing before topdressing. At the same time, the conveying mechanism is used for conveying. When the mixed fertilizer solution passes through the second mixing roller, the impact force of the fertilizer solution can be used for a second mixing and reduce the impact force of the water flow. This ensures that the water and fertilizer are fully and evenly mixed during the conveying process, so that the fertilizer can be evenly sprayed on the seeds, thereby improving the topdressing effect and effectively preventing fertilizer solidification and sedimentation, and ensuring the fluidity of the fertilizer. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0018] Figure 2 This is one of the cross-sectional views of a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0019] Figure 3 This is a second cross-sectional view of a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0020] Figure 4 This is a partial structural schematic diagram of a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the material conveying mechanism in a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the longitudinal topdressing mechanism in a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of one side of the longitudinal topdressing mechanism in a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of one side of the material conveying mechanism in a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0025] Figure 9 This is a schematic diagram of the movable mounting frame in a topdressing device for seedbed breeding according to an embodiment of the present utility model;

[0026] Figure 10 This is a third cross-sectional view of a topdressing device for seedbed breeding according to an embodiment of the present utility model.

[0027] In the picture:

[0028] 1. Mounting frame; 2. Seedbed; 3. Horizontal assembly; 301. Protective shell; 302. Threaded rod; 303. Servo motor 1; 304. Protective groove; 305. Brush bristles; 4. Movable mounting frame; 5. Longitudinal fertilization mechanism; 501. Drive shaft; 502. Gear; 503. Rack; 504. Connecting block; 505. Sliding groove; 506. I-beam frame; 507. Annular support frame; 508. Fertilizer tank; 509. Nozzle; 510. First spray nozzle 511. Inclined tube; 512. Second jet hole; 513. Support plate; 514. Support block; 515. Servo motor II; 516. Slider; 6. Material conveying mechanism; 601. Placement plate; 602. Storage box; 603. Water pump; 604. Telescopic hose; 605. Connecting pipe; 606. Solenoid valve; 607. Material conveying pipe; 7. Mixing assembly; 701. First mixing roller; 702. Servo motor III; 8. Control panel; 9. Second mixing roller. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] According to an embodiment of the present invention, a topdressing device for seedbed breeding is provided.

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-10 As shown, a topdressing device for seedbed breeding according to an embodiment of the present utility model includes a mounting frame 1; a seedbed 2, disposed on the top of the mounting frame 1; transverse components 3, symmetrically disposed on the top of both ends of the mounting frame 1; a movable mounting frame 4, disposed between the transverse components 3, and the transverse components 3 cooperate with the movable mounting frame 4; a longitudinal topdressing mechanism 5, disposed inside the movable mounting frame 4; a feeding mechanism 6, disposed at one end of the seedbed 2 and cooperating with the longitudinal topdressing mechanism 5; a mixing component 7, disposed inside the feeding mechanism 6; and a control panel 8, disposed on one side of the top of the mounting frame 1.

[0032] By employing the above-mentioned technical solution of this utility model, and by setting up the transverse component 3 and the longitudinal topdressing mechanism 5, topdressing can be performed according to the position of the seeds planted in the seedbed 2, ensuring uniform fertilization during the topdressing process, guaranteeing consistent seed growth period, thereby improving the accuracy and uniformity of topdressing, and enhancing the flexibility and adaptability of topdressing work. With the cooperation of the conveying mechanism 6, the mixing component 7, and the second mixing roller, the mixing component 7 performs preliminary mixing before topdressing, while the conveying mechanism 6 transports the mixture. When the mixed fertilizer solution passes through the second mixing roller, the impact force of the fertilizer solution is used for a second mixing and reduces the impact force of the water flow, ensuring that the water and fertilizer are fully and evenly mixed during transportation. This allows the fertilizer to be sprayed evenly onto the seeds, thereby improving the topdressing effect and effectively preventing fertilizer solidification and sedimentation, ensuring fertilizer fluidity.

[0033] Furthermore, in practical applications, a control panel 8 is installed on one side of the top of the mounting frame 1. This control panel 8 is electrically connected to the horizontal component 3, the vertical fertilization mechanism 5, the material conveying mechanism 6, and the mixing component 7. Operators can input relevant data through the human-machine interface of the control panel 8, thereby enabling the horizontal component 3, the vertical fertilization mechanism 5, the material conveying mechanism 6, and the mixing component 7 to perform spray-type fertilization on the seeds inside the seedbed 2.

[0034] In one embodiment, the lateral component 3 includes a protective shell 301 disposed at one top end of the mounting frame 1. A threaded rod 302 is disposed inside the protective shell 301, and the threaded rod 302 passes through the protective shell 301 and is connected to a servo motor 303. A protective groove 304 is formed on one side of the protective shell 301. Several bristles 305 are provided at the top and bottom of the protective groove 304, which abut against the movable mounting frame 4. The movable mounting frame 4 is fitted onto the two threaded rods 302, thereby improving the accuracy of fertilization.

[0035] In one embodiment, the longitudinal fertilization mechanism 5 includes a drive shaft 501 disposed inside the movable mounting frame 4. One end of the drive shaft 501 is connected to a gear 502, which meshes with a rack 503. The bottom of the rack 503 is connected to a connecting block 504, and sliding grooves 505 are provided on both sides of the bottom of the connecting block 504. The bottom of the connecting block 504 is connected to an I-beam 506, and an annular support frame 507 is provided at the bottom of the I-beam 506. A fertilizer tank 508 is mounted on a frame 507. A nozzle 509 is connected to the bottom of the fertilizer tank 508. The nozzle 509 has several first spray nozzles 510 at its bottom, and several inclined tubes 511 are arranged on the outer circumference of the bottom of the nozzle 509. Several second spray holes 512 are opened on the inclined tubes 511. A support plate 513 is installed on the top of one side of the I-beam frame 506, and a support block 514 is installed at the bottom of the support plate 513. A servo motor 515 is connected to the other end of the drive shaft 501 through the movable mounting frame 4. The diameter of the first spray nozzles 510 is larger than the diameter of the second spray holes 512. A slider 516 that cooperates with the sliding groove 505 is provided at the bottom of the movable mounting frame 4, thereby improving the accuracy and uniformity of topdressing, and thus improving the flexibility and adaptability of topdressing work.

[0036] Working principle of the transverse component 3 and the longitudinal topdressing mechanism 5: After the seeds are treated and placed in the soil inside the seedbed 2, when the topdressing operation begins, the operator controls the two servo motors 303 to start synchronously via the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8. The two servo motors 303 simultaneously drive the two threaded rods 302 to rotate within the protective shell 301. The protective shell 301 provides protection, and the bristles 305 at the protective groove 304 prevent impurities from entering and affecting the operation. At the same time, the movable mounting frame 4 engages with the two threaded rods 302, moving horizontally along the threaded rods 302 to move the longitudinal topdressing mechanism 5 to the transverse position where topdressing is required. The operator then controls the two servo motors 303 to stop simultaneously via the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8, completing the transverse positioning.

[0037] Then, the operator starts the servo motor 515 via the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8. The servo motor 515 drives the drive shaft 501 to rotate, and the gear 502 at one end of the drive shaft 501 rotates accordingly. Under the meshing of the gear 502 and the rack 503, the rack 503 moves vertically under the drive of the gear 502. The connecting block 504 at the bottom of the rack 503 moves vertically stably through the sliding grooves 505 on both sides and the slider 516 at the bottom of the movable mounting frame 4. Lubricant is applied between the sliding grooves 505 and the slider 516 to prevent obstruction of movement. The connecting block 504 drives the rack 503 to rotate vertically. The fertilizer tank 508 on the I-beam frame 506 and the bottom annular support frame 507 moves together, moving the nozzle 509 to the longitudinal position corresponding to the seed. The operator controls the servo motor 515 to stop via the PLC (programmable logic controller) on the human-machine interface of the control panel 8. Then, fertilizer is fed into the fertilizer tank 508 through the feeding mechanism 6 and sprayed out through several first spray nozzles 510 at the bottom of the nozzle 509 and several second spray holes 512 on several inclined tubes 511 on the outer side of the bottom circumference. The diameter of the first spray nozzle 510 is larger than the diameter of the second spray hole 512, so that the fertilizer can be evenly covered around the seed at different flow rates and angles.

[0038] It should be noted that the two servo motors 303 are interconnected via a synchronous interlocking mechanism, which can be linked by the PLC control system to ensure that the output shafts of the two motors rotate synchronously, thus ensuring that the horizontal component 3 remains horizontal during movement. The synchronous interlocking mechanism is existing technology and will not be described in detail here.

[0039] In one embodiment, the feeding mechanism 6 includes a placement plate 601 at one end of the seedbed 2, a storage box 602 on top of the placement plate 601, a water pump 603 inside the storage box 602, a telescopic hose 604 connected to the water pump 603, and a connecting pipe 605 connected to one end of the telescopic hose 604; a solenoid valve 606 on top of the storage box 602, and a feeding pipe 607 connected to the top of the solenoid valve 606. The connecting pipe 605 has an I-shaped structure and is connected to the fertilizer tank 508, and the support block 514 cooperates with the connecting pipe 605 to improve the conveying efficiency of fertilizer water.

[0040] In one embodiment, the mixing component 7 includes a first mixing roller 701 disposed inside the storage tank 602. The first mixing roller 701 passes through the storage tank 602 and is connected to a servo motor 702. A second mixing roller 9 is disposed inside the fertilizer tank 508, thereby improving the topdressing effect and effectively preventing fertilizer from solidifying and settling, and ensuring the fluidity of the fertilizer.

[0041] The working principle of the conveying mechanism 6 and the mixing component 7 is as follows: Before topdressing begins, fertilizer solution needs to be added. After adding fertilizer and water to the storage tank 602, the operator controls the servo motor 702 via the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8. Its output drives the first mixing roller 701 to rotate inside the storage tank 602. The first mixing roller 701 continuously stirs, ensuring that the fertilizer and water are fully mixed, preventing the fertilizer from solidifying and settling inside the storage tank 602. When it is necessary to convey fertilizer solution to the fertilizer tank 508, the operator again uses the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8. The controller starts the water pump 603. Simultaneously, if the fertilizer solution in the storage tank 602 is insufficient, the operator can use the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8 to open the solenoid valve 606, allowing the fertilizer solution to enter the storage tank 602 through the conveying pipe 607. The water pump 603 extracts the evenly mixed fertilizer solution from the storage tank 602 and delivers it through the telescopic hose 604 to the I-shaped connecting pipe 605. The connecting pipe 605 is connected to the fertilizer tank 508 and cooperates with the support block 514 to ensure stable delivery. The fertilizer solution smoothly enters the fertilizer tank 508 through the connecting pipe 605. After entering the fertilizer tank 508, the second mixing roller 9 inside further stirs and mixes the fertilizer solution to ensure it remains uniform and prevents sedimentation in the fertilizer tank 508. After topdressing is completed, the operator uses the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8 to control the servo motor 702, solenoid valve 606, and water pump 603 to shut down.

[0042] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0043] In practical applications, after the seeds are treated and placed in the soil inside the seedbed 2, fertilizer and water are added to the storage tank 602. The operator starts the servo motor 702 of the mixing component 7 through the PLC (programmable logic controller) on the human-machine interface of the control panel 8, which drives the first mixing roller 701 to rotate and stir in the storage tank 602 (forming liquid fertilizer). When the fertilizer and water in the storage tank 602 are insufficient, the solenoid valve 606 of the conveying mechanism 6 can be opened through the PLC (programmable logic controller) on the human-machine interface of the control panel 8 during the subsequent conveying process, so that the fertilizer and water enter the storage tank 602 through the conveying pipe 607.

[0044] Then, the operator uses the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8 to control the two servo motors 303 of the horizontal component 3 to start synchronously. The two servo motors 303 drive the two threaded rods 302 to move the movable mounting frame 4 horizontally. The bristles 305 at the protective groove 304 can prevent impurities from entering the protective shell 301. Subsequently, the operator again uses the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8 to stop the two servo motors 303, completing the horizontal positioning.

[0045] Subsequently, the staff used the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8 to start the servo motor 515. The servo motor 515 drove the drive shaft 501 to rotate, and drove the gear 502 to rotate accordingly. Under the meshing action of the gear 502 and the rack 503, the rack 503 moved in the vertical direction, and the slider 516 at the bottom of the moving mounting frame 4 also moved steadily vertically. Lubricant was applied between the sliding groove 505 and the slider 516 to prevent movement obstruction. The connecting block 504 drove the I-beam frame 506 and the fertilizer tank 508 on the bottom annular support frame 507 to move together, moving the nozzle 509 to the longitudinal position corresponding to the seed. The staff controlled the servo motor 515 to stop through the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8, completing the longitudinal positioning (the working principle of the transverse component 3 and the longitudinal topdressing mechanism 5 is as described above).

[0046] Subsequently, when fertilizer solution needs to be delivered to fertilizer tank 508, the operator starts water pump 603 via PLC (Programmable Logic Controller) on the human-machine interface of control panel 8. Water pump 603 extracts the uniformly mixed fertilizer solution from storage tank 602 and delivers it through telescopic hose 604 to connecting pipe 605, which has an I-shaped structure. Connecting pipe 605 is connected to fertilizer tank 508 and cooperates with support block 514 to ensure stable delivery (the working principle of conveying mechanism 6 and mixing component 7 is as described above). After fertilizer solution enters fertilizer tank 508, the second mixing roller 9 inside further stirs and mixes fertilizer solution. Finally, fertilizer is sprayed out through several first spray nozzles 510 at the bottom of nozzle 509 and several second spray holes 512 on several inclined tubes 511 on the outer side of the bottom circumference.

[0047] After the topdressing is completed, the staff can use the PLC (Programmable Logic Controller) on the human-machine interface of the control panel 8 to control the servo motor 702, solenoid valve 606 and water pump 603 to shut down, thus completing the topdressing of the seeds on the seedbed 2.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A topdressing device for seedbed breeding, characterized in that, include: Mounting bracket (1); Seedbed (2), set on top of the mounting frame (1); The horizontal components (3) are symmetrically arranged at the top of both ends of the mounting frame (1); A movable mounting frame (4) is disposed between the horizontal components (3), and the horizontal components (3) cooperate with the movable mounting frame (4); The longitudinal topdressing mechanism (5) is located inside the movable mounting frame (4); The feeding mechanism (6) is located at one end of the seedbed (2) and cooperates with the longitudinal topdressing mechanism (5); A mixing component (7) is disposed inside the conveying mechanism (6); The control panel (8) is located on one side of the top of the mounting bracket (1).

2. The topdressing device for seedbed breeding according to claim 1, characterized in that, The horizontal component (3) includes protective shells (301) disposed at both ends of the top of the mounting bracket (1). A threaded rod (302) is disposed inside the protective shell (301). The threaded rod (302) passes through the protective shell (301) and is connected to a servo motor (303). A protective groove (304) is provided on one side of the protective shell (301); The top and bottom of the protective groove (304) are provided with a number of bristles (305) that abut against the movable mounting frame (4).

3. The topdressing device for seedbed breeding according to claim 2, characterized in that, The movable mounting frame (4) is fitted onto the two threaded rods (302).

4. The topdressing device for seedbed breeding according to claim 1, characterized in that, The longitudinal topdressing mechanism (5) includes a drive shaft (501) disposed inside the movable mounting frame (4). One end of the drive shaft (501) is connected to a gear (502). The gear (502) meshes with a rack (503). The bottom of the rack (503) is connected to a connecting block (504). Sliding grooves (505) are provided on both sides of the bottom of the connecting block (504). The bottom of the connecting block (504) is connected to an I-beam frame (506), and the bottom of the I-beam frame (506) is provided with an annular support frame (507). A fertilizer tank (508) is sleeved on the annular support frame (507). The bottom of the fertilizer tank (508) is connected to a nozzle (509). The bottom of the nozzle (509) is provided with a plurality of first spray ports (510). The outer circumference of the bottom of the nozzle (509) is provided with a plurality of inclined tubes (511). A plurality of second spray holes (512) are provided on the inclined tubes (511). A support plate (513) is provided on the top of one side of the I-beam frame (506), and a support block (514) is provided at the bottom of the support plate (513). The other end of the drive shaft (501) passes through the movable mounting frame (4) and is connected to a servo motor (515).

5. A topdressing device for seedbed breeding according to claim 4, characterized in that, The diameter of the first jet orifice (510) is larger than the diameter of the second jet orifice (512).

6. The topdressing device for seedbed breeding according to claim 4, characterized in that, The bottom of the movable mounting frame (4) is provided with a slider (516) that cooperates with the sliding groove (505).

7. A topdressing device for seedbed breeding according to claim 4, characterized in that, The material conveying mechanism (6) includes a placement plate (601) set at one end of the seedbed (2), a storage box (602) is set on the top of the placement plate (601), a water pump (603) is set inside the storage box (602), the water pump (603) is connected to a telescopic hose (604), and a connecting pipe (605) is connected to one end of the telescopic hose (604). The storage bin (602) is equipped with a solenoid valve (606) on top, and the solenoid valve (606) is connected to a conveying pipe (607) on top.

8. A topdressing device for seedbed breeding according to claim 7, characterized in that, The connecting pipe (605) has an I-shaped structure and is connected to the fertilizer tank (508). The support block (514) cooperates with the connecting pipe (605).

9. A topdressing device for seedbed breeding according to claim 8, characterized in that, The mixing assembly (7) includes a first mixing roller (701) disposed inside the storage bin (602), and the first mixing roller (701) passes through the storage bin (602) and is connected to a servo motor (702).

10. A topdressing device for seedbed breeding according to claim 4, characterized in that, The fertilizer tank (508) is equipped with a second mixing roller (9).

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