Wetland plant seedling raising device

Abstract

The invention discloses a wetland plant seedling raising device, which relates to the technical field of wetland plant seedling raising and comprises a seedling raising frame and a plurality of seedling raising trays fixedly connected to the inner side of the seedling raising frame, the material supplementing assistor is located on one side of the seedling raising frame and used for supplementing base materials on the inner sides of the seedling raising trays, the material supplementing assistor comprises a first linear module arranged on one side of the seedling raising frame, a second linear module is installed at the execution end of the first linear module, and a robot is installed at the execution end of the second linear module. By arranging the material supplementing assistor, base materials are supplemented around long-term seedling raising of the emergent aquatic plants on the seedling raising tray, lost or settled base materials are supplemented in time, the height and compactness of the base materials in the seedling raising tray are kept stable, reliable base material support is provided for long-term growth of the emergent aquatic plants, the plant damage rate in the long-term seedling raising process is reduced, and the survival rate of the emergent aquatic plants is increased. Therefore, the seedling success rate is improved.

Description

Technical Field

[0001] This invention relates to the field of wetland plant seedling technology, specifically a wetland plant seedling device. Background Technology

[0002] Emergent plants, as a core component of wetland ecosystems, possess multiple ecological functions, including water purification, shoreline stabilization, and ecological balance maintenance. They are widely used in wetland restoration, water environment management, and ecological landscape construction. The quality of emergent plant seedling cultivation directly determines the subsequent transplant survival rate, growth stability, and efficiency of ecological function. Therefore, substrate management during the long-term seedling cultivation process is a crucial link in ensuring the effectiveness of seedling cultivation.

[0003] Currently, emergent plant seedling cultivation often employs a combination of seedling racks and trays. A specific mix of substrate (such as a mixture of humus, river sand, and perlite) provides support, nutrients, and aeration for the plant roots, meeting the growth needs of emergent plants from seedling to mature seedling. However, the long-term seedling cultivation period for emergent plants typically lasts several months. During this process, the substrate is susceptible to changes in morphology and distribution due to multiple factors, leading to a decrease in substrate support capacity and hindering the improvement of seedling quality.

[0004] In practical seedling cultivation scenarios, water flow during watering and maintenance can lead to the loss of surface substrate and an imbalance in particle size distribution. The organic components in the substrate gradually degrade under the action of microorganisms, causing volume shrinkage and overall sedimentation. Simultaneously, the roots of emergent plants extend deeper and outwards as they grow, compressing and loosening the surrounding substrate, resulting in localized gaps or uneven density. These problems combine to make it difficult to maintain a stable height and distribution of the substrate within the seedling tray, thus affecting plant growth.

[0005] In existing seedling cultivation processes, the replenishment of substrate loss and settling is mostly done manually. This involves adding substrate to the seedling trays using hand tools. This method is not only inefficient and unsuitable for large-scale seedling cultivation, but also suffers from poor accuracy, leading to uneven substrate accumulation, excessive filling near seedlings, or unfilled gaps. While some automated seedling cultivation equipment has basic replenishment functions, it can only perform batch replenishment at a single location, failing to accurately replenish substrate for different seedling trays and different plants. Furthermore, the replenishment process can easily cause mechanical damage to fragile seedlings, and it is difficult to guarantee the compactness and stability of the substrate after replenishment. Therefore, it cannot fundamentally solve the problem of substrate management in long-term seedling cultivation. This invention proposes a wetland plant seedling cultivation device to address the aforementioned issues. Summary of the Invention

[0006] The purpose of this invention is to provide a wetland plant seedling raising device to solve the problem that the substrate cannot be automatically replenished during the seedling raising process of emergent plants.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a wetland plant seedling raising device, comprising: a seedling rack and a plurality of seedling trays fixedly connected to the inner side of the seedling rack; a feeding auxiliary device, located on one side of the seedling rack, for replenishing the substrate inside the seedling trays, the feeding auxiliary device comprising a first linear module disposed on one side of the seedling rack, a second linear module mounted on the execution end of the first linear module, a robot mounted on the execution end of the second linear module, a guide shell fixedly connected to the execution end of the robot, an auxiliary hopper rotatably connected to the bottom of the guide shell, and a connecting hose fixedly connected to the outlet of the auxiliary hopper; an auxiliary adjusting component, located at the bottom of the guide shell, for assisting the feeding auxiliary device in replenishing the substrate; and a material outlet adjusting component, located at the outlet of the connecting hose, for adjusting the size of the outlet of the connecting hose.

[0008] As a further embodiment of the present invention: the feeding auxiliary device further includes a suction pump installed at the discharge port of the material guide shell, and a connecting pipe is fixedly connected to the inlet of the suction pump, with one end of the connecting pipe extending through to the outside of the material guide shell.

[0009] As a further embodiment of the present invention: the auxiliary adjusting component includes a connecting ring fixedly connected to the bottom of the guide shell, and the auxiliary bucket is rotatably connected to the outer wall of the connecting ring. A spur gear ring is fixedly connected to the outer wall of the auxiliary bucket. A drive motor is fixedly connected to the inner side of the guide shell, and the output end of the drive motor extends through to the bottom of the guide shell and is fixedly connected to a spur gear that meshes with the spur gear ring.

[0010] As a further embodiment of the present invention: the auxiliary adjustment component further includes a fixed frame fixedly connected to one side of the auxiliary hopper, a reciprocating screw rotatably connected to the inner side of the fixed frame, a bevel gear fixedly connected to the end of the reciprocating screw extending to the outside of the fixed frame, a conical toothed ring meshing with the bevel gear fixedly connected to the bottom of the guide shell, a slider threadedly connected to the outer wall of the reciprocating screw, a U-shaped frame fixedly connected to the bottom of the slider, a fixing ring fixedly connected to the bottom of the U-shaped frame, and the fixing ring fixedly connected to the outer wall of the connecting hose.

[0011] As a further embodiment of the present invention: the inner side of the fixing frame is provided with a limiting groove that matches the slider, and the conical toothed ring is partially provided with locking teeth that mesh with the bevel gear.

[0012] As a further embodiment of the present invention: the material outlet adjustment assembly includes an elastic rubber sleeve fixedly connected to the outlet of the connecting hose, a compression block fixedly connected to each side of the elastic rubber sleeve, a power rod fixedly connected to the top of each compression block, and the power rod slidably connected to the inner side of the U-shaped frame, a connecting spring installed between the power rod and the U-shaped frame, and a limiting unit for limiting the base material during the replenishment process is provided on the top of the fixing ring.

[0013] As a further embodiment of the present invention: the feed inlet adjustment assembly further includes an inclined rod fixedly connected to the outer wall of the auxiliary hopper, the inner side of the inclined rod is provided with an inclined surface, one end of the power rod is rotatably connected to a roller, and the roller abuts against the inclined surface.

[0014] As a further embodiment of the present invention: the limiting unit includes an arc-shaped plate fixedly connected to the bottom of the fixed ring, an arched block fixedly connected to the inner side of the arc-shaped plate, and an inclined surface provided at the bottom of the arched block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a feeding aid, the substrate around the emergent plants on the seedling tray is replenished for long-term seedling cultivation. The substrate that has been lost or settled is replenished in a timely manner, and the height and compactness of the substrate in the seedling tray are kept stable. This provides reliable substrate support for the long-term growth of emergent plants, reduces the plant damage rate during long-term seedling cultivation, and thus improves the success rate of seedling cultivation. 2. By setting auxiliary adjustment components, during the replenishment of base material, the drive motor is simultaneously started. The output end of the drive motor drives the spur gear to rotate, which in turn drives the spur gear ring to rotate through the auxiliary bucket and the connecting hose, thus performing a circumferential replenishment operation. When the bevel gear contacts the locking teeth on the inner side of the bevel gear ring, the bevel gear can drive the reciprocating screw to rotate under the drive of the locking teeth on the inner side of the bevel gear ring. Because the inner side of the bevel gear ring is partially equipped with locking teeth, the discharge port of the connecting hose will discharge into the wetland during each rotation. The plant seedlings are moved in a certain direction to gradually replenish the substrate. For emergent plants, the root system needs to expand from the outer edge of the substrate to the deeper layers during long-term seedling cultivation. This method of replenishing the substrate can first fill the outer edge of the root system with sufficient substrate, and then gradually replenish it closer to the seedling. This avoids the substrate being concentrated in a certain area, which would cause uneven stress on the root system. At the same time, the circular movement makes the substrate evenly distributed around the seedling, forming a stable "substrate ring". This can effectively fix the root system of emergent plants and prevent them from falling over due to wind, watering and other factors during long-term seedling cultivation, ensuring that the plants grow upright. 3. By setting up the cooperation of parts such as sliders, as the sliders move gradually towards the auxiliary bucket under the drive of the reciprocating screw, the two power rods move gradually towards the center of the elastic rubber sleeve under the drive of the inclined surface inside the inclined rod. This squeezes the discharge port of the elastic rubber sleeve, thereby reducing the size of the discharge port. As the elastic rubber sleeve moves from away from the wetland plant seedlings to gradually approach them, the size of the discharge port gradually decreases, thereby gradually reducing the amount of substrate replenishment. This achieves gradient control of "large flow replenishment at the periphery and small flow replenishment near the seedlings". The stem base and root periphery of emergent plants are relatively fragile. If the amount of substrate replenished near the seedlings is too large during long-term seedling cultivation, it is easy to cause the substrate to accumulate too high and bury the stem base, affecting respiration, or impacting the root system and causing root breakage. By quickly replenishing substrate around the periphery, the efficiency of substrate replenishment is improved; the amount of substrate discharged near the seedling is reduced, and the missing substrate around the root system is precisely replenished. This not only avoids substrate accumulation and root damage, but also ensures the compactness of the substrate filling, meets the long-term growth needs of emergent plants for substrate, and ensures that the substrate filling of emergent plants in all seedling trays is uniform, the growth is consistent, and the overall seedling quality and qualification rate are improved. 4. By incorporating components such as arc-shaped plates, a "protective barrier" can be formed during the feeding process. The base of emergent plant stems (especially during the seedling stage) is relatively fragile. If the substrate collapses towards the seedlings during the feeding process in long-term seedling cultivation, it can easily bury the base of the stem or leaves, leading to obstructed respiration, weakened photosynthesis, and even plant rot. The arc-shaped plate design can effectively prevent the lateral collapse of the falling substrate, confining the substrate to the feeding area outside the arc-shaped plate, completely avoiding the risk of the substrate burying the plant, and ensuring the normal growth of emergent plants during the long-term seedling cultivation period. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the feed guide shell of the present invention; Figure 3 This is a cross-sectional view of the auxiliary bucket of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the auxiliary bucket structure of the present invention; Figure 6 This is a schematic diagram of the U-shaped frame structure of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the fixing ring of the present invention; Figure 8 This is a schematic diagram of the arc-shaped plate structure of the present invention.

[0017] In the diagram: 1. Seedling rack; 2. Seedling tray; 3. First linear module; 4. Second linear module; 5. Robot; 6. Feed guide shell; 7. Suction pump; 8. Connecting pipe; 9. Drive motor; 10. Auxiliary bucket; 11. Connecting ring; 12. Conical gear ring; 13. Connecting hose; 14. Spur gear ring; 15. Slider; 16. Inclined rod; 17. Reciprocating screw; 18. Bevel gear; 19. Fixing frame; 20. Spur gear; 21. Fixing ring; 22. Extrusion block; 23. Power rod; 24. Elastic rubber sleeve; 25. Arc plate; 26. U-shaped frame; 27. Roller; 28. Connecting spring; 29. ​​Arch block; 30. Inclined surface. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0020] During the long-term seedling cultivation of emergent plants, the substrate may settle, be lost, or have local gaps due to water erosion, microbial decomposition, and root growth. Insufficient substrate can lead to exposed roots, reduced stability, and affect the upright growth of the plants. Therefore, this solution addresses this technical problem by making the following technical improvements: Please see Figures 1 to 8This embodiment provides a wetland plant seedling raising device, including: a seedling frame 1 and multiple seedling trays 2 fixedly connected to the inner side of the seedling frame 1; a feeding auxiliary device, located on one side of the seedling frame 1, for replenishing the base material inside the seedling trays 2, the feeding auxiliary device includes a first linear module 3 set on one side of the seedling frame 1, a second linear module 4 installed at the execution end of the first linear module 3, a robot 5 installed at the execution end of the second linear module 4, a guide shell 6 fixedly connected to the execution end of the robot 5, an auxiliary hopper 10 rotatably connected to the bottom of the guide shell 6, a connecting hose 13 fixedly connected to the outlet of the auxiliary hopper 10, the feeding auxiliary device also includes a suction pump 7 installed at the outlet of the guide shell 6, a connecting pipe 8 fixedly connected to the inlet of the suction pump 7, and one end of the connecting pipe 8 extending to the outside of the guide shell 6; First, a material box containing base material is installed on the material guide shell 6, and the material box is fixed to the connecting pipe 8 through a hose, so that the base material inside the material box can be transported into the connecting hose 13 and discharged under the suction action of the suction pump 7, thereby replenishing the wetland plant seedlings on the seedling tray 2 with base material. How the first linear module 3 and the second linear module 4 adjust the position of the robot 5 is existing technology, so this solution does not elaborate on it. Furthermore, the robot 5 is a multi-axis robot, and how the robot 5 drives the guide shell 6 to move to the designated position is something that can be implemented with existing technology, so this solution does not elaborate on it. When it is necessary to replenish the substrate around the wetland plant seedlings on the seedling tray 2, the vertical position of the robot 5 can be adjusted by the first linear module 3 under the control of the PLC controller, and the horizontal position of the robot 5 can be adjusted by the second linear module 4. The robot 5 can adjust the guide shell 6 to be above the plant that needs to be replenished and to the designated position. When replenishment is required, the suction pump 7 can be used to transport the substrate inside the material box to the connecting hose 13 and discharge it, thereby replenishing the substrate around the emergent plants on the seedling tray 2 for long-term seedling cultivation, timely replenishing the substrate that has been lost or settled, maintaining the stability of the height and compactness of the substrate in the seedling tray 2, providing reliable substrate support for the long-term growth of emergent plants, reducing the plant damage rate during long-term seedling cultivation, and thus improving the success rate of seedling cultivation.

[0021] Please see Figures 2-8An auxiliary adjusting component, located at the bottom of the feed housing 6, is used to assist the feeding auxiliary device in replenishing base material. The auxiliary adjusting component includes a connecting ring 11 fixedly connected to the bottom of the feed housing 6, and an auxiliary hopper 10 rotatably connected to the outer wall of the connecting ring 11. A spur gear ring 14 is fixedly connected to the outer wall of the auxiliary hopper 10. A drive motor 9 is fixedly connected to the inner side of the feed housing 6, and the output end of the drive motor 9 extends through to the bottom of the feed housing 6 and is fixedly connected to a spur gear 20 that meshes with the spur gear ring 14. The auxiliary adjusting component also includes a fixing frame 19 fixedly connected to one side of the auxiliary hopper 10. The inner side of the fixing frame 19 rotates... A reciprocating screw 17 is connected, and the end of the reciprocating screw 17 extends through to the outside of the fixed frame 19 and is fixedly connected to a bevel gear 18. A conical toothed ring 12 that meshes with the bevel gear 18 is fixedly connected to the bottom of the guide shell 6. A slider 15 is threadedly connected to the outer wall of the reciprocating screw 17. A U-shaped frame 26 is fixedly connected to the bottom of the slider 15. A fixed ring 21 is fixedly connected to the bottom of the U-shaped frame 26 and is fixedly connected to the outer wall of the connecting hose 13. A limiting groove matching the slider 15 is opened on the inner side of the fixed frame 19. A locking tooth that meshes with the bevel gear 18 is partially provided on the conical toothed ring 12. During the replenishment of base material, the drive motor 9 is simultaneously started. The output of the drive motor 9 drives the spur gear 20 to rotate, which in turn drives the spur gear ring 14 to rotate simultaneously via the auxiliary bucket 10 and the connecting hose 13, thus performing a circumferential replenishment operation. When the bevel gear 18 contacts the locking teeth on the inner side of the conical gear ring 12, the bevel gear 18 can be driven by the locking teeth on the inner side of the conical gear ring 12 to drive the reciprocating screw 17 to rotate. Since the inner side of the conical gear ring 12 is partially equipped with locking teeth, the connecting hose 13 discharges material during each rotation. The feed will move towards the wetland plant seedlings to gradually replenish the substrate. For emergent plants, the root system needs to expand from the outer edge of the substrate to the deeper layers during long-term seedling cultivation. This method of replenishing the substrate can first fill the outer edge of the root system with sufficient substrate, and then gradually replenish it closer to the seedling. This avoids the substrate being concentrated in a certain area, which would cause uneven stress on the root system. At the same time, the circular motion makes the substrate evenly distributed around the seedling, forming a stable "substrate ring". This can effectively fix the root system of emergent plants and prevent them from falling over due to wind, watering and other factors during long-term seedling cultivation, ensuring that the plants grow upright.

[0022] Please see Figures 5-8The feed inlet adjustment assembly, located at the outlet of the connecting hose 13, is used to adjust the size of the outlet of the connecting hose 13. The assembly includes an elastic rubber sleeve 24 fixedly connected to the outlet of the connecting hose 13. A compression block 22 is fixedly connected to each side of the elastic rubber sleeve 24. A power rod 23 is fixedly connected to the top of each compression block 22, and the power rod 23 is slidably connected to the inner side of the U-shaped frame 26. A connecting spring 28 is installed between the power rod 23 and the U-shaped frame 26. The top of the fixed ring 21 is provided with a limiting unit to limit the base material during the replenishment process. The material outlet adjustment assembly also includes an inclined rod 16 fixedly connected to the outer wall of the auxiliary hopper 10. An inclined surface is provided on the inner side of the inclined rod 16. One end of the power rod 23 is rotatably connected to a roller 27, and the roller 27 abuts against the inclined surface. The limiting unit includes an arc plate 25 fixedly connected to the bottom of the fixed ring 21. An arched block 29 is fixedly connected to the inner side of the arc plate 25. An inclined surface 30 is provided at the bottom of the arched block 29. As the slider 15 moves gradually toward the auxiliary bucket 10 under the drive of the reciprocating screw 17, the two power rods 23 move gradually toward the center of the elastic rubber sleeve 24 under the drive of the inclined surface inside the inclined rod 16. This squeezes the discharge port of the elastic rubber sleeve 24, thereby reducing the size of the discharge port. As the elastic rubber sleeve 24 moves closer to the wetland plant seedlings, the size of the discharge port gradually decreases, thereby gradually reducing the amount of substrate replenishment. This achieves gradient control of "large flow replenishment at the periphery and small flow replenishment near the seedlings". The stem base and root periphery of emergent plants are relatively fragile. If the amount of substrate replenishment near the seedlings is too large during long-term seedling cultivation, it is easy to cause the substrate to accumulate too high and bury the stem base, affecting respiration, or impacting the root system and causing root breakage. By quickly replenishing substrate on the periphery, the efficiency of substrate replenishment is improved; the amount of substrate discharged near the seedling is reduced, and the missing substrate around the root system is accurately replenished. This not only avoids substrate accumulation and root damage, but also ensures the density of substrate filling, meets the long-term growth needs of emergent plants for substrate, and ensures that the substrate filling of all emergent plants in seedling tray 2 is uniform, and the growth is consistent, thereby improving the overall seedling quality and qualification rate. When robot 5 moves the guide shell 6 to the designated position, the arc plate 25 is located between the wetland plant seedlings and the elastic rubber sleeve 24. The bottom of the arc plate 25 moves to be level with the top of the base material originally filled inside the seedling tray 2, so that the base material can be blocked from collapsing towards the wetland plant seedlings as it falls from inside the elastic rubber sleeve 24. At the same time, during the circumferential rotation of the fixing ring 21, the arched surface set at the front end of the arched block 29 can push the material that is piled up too high in the early stage. At the same time, under the action of the inclined surface 30, the top of the discharged base material is tilted and squeezed to avoid excessive collapse of the base material during the replenishment process, thereby improving the stability of the base material after replenishment. The curved plate 25 forms a "protective barrier" during the feeding process. The base of emergent plants (especially in the seedling stage) is relatively fragile. If the substrate collapses towards the seedling during the feeding process in the long-term seedling stage, it can easily bury the base of the stem or leaves, which will lead to obstructed respiration, weakened photosynthesis, and even plant rot. The design of the curved plate 25 can effectively prevent the lateral collapse of the falling substrate, confining the substrate to the feeding area outside the curved plate, completely avoiding the risk of the substrate burying the plant, and ensuring the normal growth of emergent plants in the long-term seedling stage.

[0023] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for raising wetland plants, characterized by comprising: include: Seedling rack (1) and multiple seedling trays (2) fixedly connected to the inside of the seedling rack (1); A feeding aid is located on one side of the seedling rack (1) and is used to replenish the base material inside the seedling tray (2). The feeding aid includes a first linear module (3) set on one side of the seedling rack (1). A second linear module (4) is installed on the execution end of the first linear module (3). A robot (5) is installed on the execution end of the second linear module (4). A guide shell (6) is fixedly connected to the execution end of the robot (5). An auxiliary bucket (10) is rotatably connected to the bottom of the guide shell (6). A connecting hose (13) is fixedly connected to the outlet of the auxiliary bucket (10). An auxiliary adjustment component, located at the bottom of the material guide shell (6), is used to assist the material replenishment device in replenishing the base material; The material outlet adjustment component is located at the outlet of the connecting hose (13) and is used to adjust the size of the outlet of the connecting hose (13).

2. The wetland plant growing apparatus of claim 1, wherein The feeding aid also includes a suction pump (7) installed at the outlet of the feed guide shell (6). A connecting pipe (8) is fixedly connected to the inlet of the suction pump (7), and one end of the connecting pipe (8) extends through to the outside of the feed guide shell (6).

3. The wetland plant seedling raising device according to claim 2, characterized in that, The auxiliary adjustment component includes a connecting ring (11) fixedly connected to the bottom of the guide shell (6), and the auxiliary bucket (10) is rotatably connected to the outer wall of the connecting ring (11). A spur gear ring (14) is fixedly connected to the outer wall of the auxiliary bucket (10). A drive motor (9) is fixedly connected to the inner side of the guide shell (6), and the output end of the drive motor (9) extends through to the bottom of the guide shell (6) and is fixedly connected to a spur gear (20) that meshes with the spur gear ring (14).

4. The wetland plant seedling raising device according to claim 3, characterized in that, The auxiliary adjustment component also includes a fixed frame (19) fixedly connected to one side of the auxiliary bucket (10). A reciprocating screw (17) is rotatably connected to the inner side of the fixed frame (19). A bevel gear (18) is fixedly connected to the end of the reciprocating screw (17) through the outside of the fixed frame (19). A conical toothed ring (12) that meshes with the bevel gear (18) is fixedly connected to the bottom of the guide shell (6). A slider (15) is threadedly connected to the outer wall of the reciprocating screw (17). A U-shaped frame (26) is fixedly connected to the bottom of the slider (15). A fixing ring (21) is fixedly connected to the bottom of the U-shaped frame (26). The fixing ring (21) is fixedly connected to the outer wall of the connecting hose (13).

5. A wetland plant seedling raising device according to claim 4, characterized in that, The inner side of the fixing frame (19) is provided with a limiting groove that matches the slider (15), and the conical toothed ring (12) is partially provided with a locking tooth that meshes with the bevel gear (18).

6. A wetland plant seedling raising device according to claim 4, characterized in that, The material outlet adjustment assembly includes an elastic rubber sleeve (24) fixedly connected to the outlet of the connecting hose (13). An extrusion block (22) is fixedly connected to each side of the elastic rubber sleeve (24). A power rod (23) is fixedly connected to the top of each extrusion block (22). The power rod (23) is slidably connected to the inner side of the U-shaped frame (26). A connecting spring (28) is installed between the power rod (23) and the U-shaped frame (26). A limiting unit is provided on the top of the fixing ring (21) to limit the base material during the replenishment process.

7. A wetland plant seedling raising device according to claim 6, characterized in that, The feed inlet adjustment assembly also includes a slant rod (16) fixedly connected to the outer wall of the auxiliary hopper (10). The inner side of the slant rod (16) is provided with an inclined surface. One end of the power rod (23) is rotatably connected to a roller (27), and the roller (27) abuts against the inclined surface.

8. A wetland plant seedling raising device according to claim 7, characterized in that, The limiting unit includes an arc plate (25) fixedly connected to the bottom of the fixed ring (21), an arched block (29) fixedly connected to the inner side of the arc plate (25), and an inclined surface (30) provided at the bottom of the arched block (29).

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