Seedling raising and sowing device capable of realizing synchronous application of tree mycorrhizal agent along with seeds

Abstract

The invention relates to the technical field of forest seedling raising machinery, and discloses a seedling raising and sowing device capable of realizing synchronous application of a forest mycorrhizal agent along with seeds, and by driving two groups of discharging mechanisms of independent storage assemblies for respectively containing forest seeds and mycorrhizal agents to synchronously rotate, the discharging quantity of the two materials and the advancing speed of the device are completely rigidly bound; on the other hand, it is guaranteed that the discharging proportion is constant and accurately matched with the advancing distance from the mechanical structure, finally, the materials are fully mixed through spiral mixing blades in a discharging pipe and then synchronously fall out, and the mycorrhizal agent and seeds are synchronously applied along with the seeds in the same hole; and intermittent extrusion is formed on an extrusion plate on the sliding ring, the sliding ring is driven to drive a material baffle in the storage barrel to synchronously perform circumferential reciprocating turning along with the walking speed in cooperation with rebounding reset of a reset elastic piece in the arc-shaped pipe, and the materials are continuously homogenized to avoid blocking of a discharging channel due to caking and adhesion.

Description

Technical Field

[0001] This invention relates to the field of forest tree seedling machinery technology, and in particular to a seedling sowing device that enables the simultaneous application of forest tree mycorrhizal agents with the seeds. Background Technology

[0002] The cultivation of superior tree varieties and robust seedlings is a core and fundamental link in my country's forestry ecological construction, land greening quality improvement and efficiency enhancement, and high-quality development of the modern forestry industry. Mycorrhizal biotechnology, as an important component of modern forestry biotechnology, has become a key technical means to improve the stress resistance, nutrient absorption efficiency, and afforestation survival rate of tree seedlings. It has been widely used in the large-scale seedling cultivation of coniferous trees, broad-leaved economic forest species, and ecological restoration tree species in my country. Mycorrhizal fungi can form a mutually beneficial symbiotic system with the root systems of most trees, expanding the forest canopy through the extension of mycelium. The increased root system enhances the seedlings' ability to absorb and utilize mineral nutrients such as nitrogen and phosphorus, as well as water, from the soil. It also strengthens the seedlings' tolerance to adverse conditions such as drought, salinity, and soil-borne diseases. With the continuous maturation of mycorrhizal fungi strain screening, propagation technology, and inoculant preparation processes, forest tree-specific mycorrhizal agents have developed into a series of mature products, including powders, granules, slow-release formulations, and pellet-coated formulations. These products can be adapted to different application scenarios throughout the entire seedling cultivation cycle, providing a stable material basis for the large-scale promotion of mycorrhizal technology in forestry seedling cultivation.

[0003] The aforementioned and existing related technologies often suffer from the following drawbacks: In existing technologies, the application of mycorrhizal agents in forest tree seedling sowing operations is often carried out separately from the sowing process. Furthermore, the feeding mechanism cannot be synchronized with the movement of the device, and there are no suitable mechanical anti-clogging and material homogenization mechanisms designed for the tendency of forest tree seeds and mycorrhizal agents to clump and stick. In addition, the stepless and precise adjustment of the feeding amount is difficult, resulting in the inability to achieve synchronous quantitative application of seeds and mycorrhizal agents, imbalances in the application ratio due to fluctuations in movement speed, easy blockage of the feeding channel, and inability to adapt to the seedling sowing needs of different forest tree varieties. Ultimately, this leads to low mycorrhizal agent inoculation survival rates and substandard seedling emergence and robust seedling rates. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantage that seeds and mycorrhizal agents cannot be applied simultaneously and quantitatively with the seeds. To this end, we propose a seedling sowing device that can realize the simultaneous application of forest mycorrhizal agents with the seeds.

[0005] To achieve the above objectives, this application adopts the following technical solution: a seedling sowing device that enables the simultaneous application of forest tree mycorrhizal agents with the seeds, including a supporting shell, a push handle fixed to the side of the supporting shell, and walking rollers rotatably installed on both sides of the lower end of the push handle; The outer shell contains two independent storage components, which are used to hold tree seeds and mycorrhizal agents, respectively. The main shaft of the traveling roller is coaxially fixed with a drive gear, which meshes with a gear belt. The other end of the gear belt meshes with a rotating gear. A drive rotating rod is coaxially fixed between the two sets of symmetrically arranged rotating gears. The drive rotating rod horizontally penetrates the side wall of the bearing shell and extends into its interior, and is rotatably connected to the bearing shell. On the rod body of the drive rotating rod, at positions corresponding to the two sets of material storage components, conical rollers and drive gears are coaxially fixed respectively. The transmission gear meshes with a synchronous transmission belt, and the transmission end of the synchronous transmission belt meshes with the driven end of the feeding component of the corresponding side storage component to drive the two sets of feeding components to rotate synchronously with the walking rollers. The storage assembly includes a horizontally arranged storage bin. The upper end of the storage bin is provided with a feeding interface that communicates with the feeding port on the top of the supporting shell. A sliding ring is coaxially slidably sleeved on the outer circumference of the storage bin. An extrusion plate is fixed to the side of the sliding ring facing the transmission rotating rod through an L-shaped connecting rod. The extrusion plate abuts against the conical roller. The material storage hopper has symmetrically fixed arc-shaped tubes on both sides of the feed interface. A buffer rod is movably inserted through the hollow cavity of the arc-shaped tube. The lower end of the buffer rod is fixedly connected to the sliding ring. A reset elastic element is fixed inside the cavity of the arc-shaped tube. The end of the reset elastic element abuts against the buffer rod. A material baffle is coaxially arranged in the inner cavity of the storage hopper. The inner ring of the material baffle is rotatably engaged with the outer wall of the feeding assembly, and the outer circumferential edge of the material baffle is fixedly connected to the inner wall of the sliding ring.

[0006] Preferably, the feeding component is coaxially arranged through the axis of the storage hopper, the outer end of the feeding component extends out of the side wall of the supporting shell, and the driven end of the feeding component is a driven transmission gear coaxially fixed to its extended end, the driven transmission gear meshing with the synchronous transmission belt.

[0007] Preferably, the feeding assembly includes a transmission connecting pipe, the driven transmission gear is coaxially fixed to the outer end of the transmission connecting pipe, and at least one set of quantitative feeding rings is coaxially fixed to the middle section of the transmission connecting pipe. Multiple sets of storage grooves are evenly opened on the outer circumferential surface of the quantitative feeding rings.

[0008] Preferably, the lower end of the supporting shell is fixed with a feeding pipe that is connected to the discharge ends of both sets of material storage components, and the inner wall of the feeding pipe is fixed with spiral mixing blades.

[0009] Preferably, the inner radially movable part of the quantitative feeding ring is equipped with multiple sets of volume control blocks that correspond one-to-one with the storage tank. The inner cavity of the transmission connecting pipe is coaxially provided with an adjusting rotating rod, and a conical adjusting block that abuts against the inner end of the volume control block is coaxially fixed on the rod body of the adjusting rotating rod.

[0010] Preferably, a threaded tube is fixed to the side wall plate of the bearing housing, the adjusting rotating rod is threadedly engaged with the threaded tube, and an adjusting rotating ring is coaxially fixed to the outer end of the adjusting rotating rod extending out of the bearing housing. The transmission connecting pipe is coaxially sleeved on the outside of the adjusting rotating rod, and the transmission connecting pipe and the adjusting rotating rod are rotatedly engaged by a bearing.

[0011] Preferably, a discharge port is provided at the center of the lower end of the storage hopper, the inner wall of the lower end of the storage hopper is a funnel-shaped converging slope, a guide pipe connected to the discharge port is fixed at the lower end of the storage hopper, and two sets of guide grooves are provided inside the lower end of the supporting shell, which are respectively connected to the corresponding guide pipes, and the end of the guide groove is connected to the discharge pipe.

[0012] Preferably, multiple sets of parallel and spaced-apart barrier plates are fixed at the upper opening of the guide tube, and multiple sets of cleaning plates are fixed on the side of the sliding ring facing the opening of the guide tube, with each set of cleaning plates extending into the gap between adjacent barrier plates.

[0013] Preferably, cleaning brushes are fixed on both sides of the barrier sheet, and the cleaning brushes abut against the surface of the cleaning plate.

[0014] Preferably, the reset elastic element is a compression spring, one end of which is fixedly connected to the end of the cavity of the arc-shaped tube, and the other end is engaged with the end of the buffer rod.

[0015] The technical effects and advantages of this invention are as follows: In this invention, two core operational functions are achieved synchronously through a single through-type transmission rotating rod. Firstly, the transmission rotating rod and the traveling roller rotate at the same frequency via a transmission chain consisting of an active transmission gear, a gear belt, and a rotating gear. Then, through the transmission gear and synchronous transmission belt on the rod, the feeding mechanisms of two independent storage components, containing tree seeds and mycorrhizal agents respectively, rotate synchronously. This ensures that the feeding amount of the two materials is rigidly linked to the device's travel speed, guaranteeing a constant feeding ratio and precise matching with the travel distance from a mechanical structure perspective. Finally, after being thoroughly mixed by the spiral mixing blades inside the feeding pipe, the materials fall out synchronously, achieving simultaneous application of mycorrhizal agents and seeds in the same planting hole. On the other hand, the conical roller fixed coaxially on the transmission rotating rod rotates synchronously with the rod body, forming intermittent extrusion on the extrusion plate on the sliding ring. Combined with the rebound and reset of the return elastic element in the arc tube, the sliding ring drives the material baffle in the storage bucket to reciprocate and turn around in circumferentially with the walking speed, continuously homogenizing the material and preventing caking and sticking to block the feeding channel. The design without any electrical control or pneumatic components is perfectly adapted to the complex working environment of nurseries with high humidity and dust and no external power supply. It completely solves the industry pain points of existing devices such as imbalance of seed and medicine ratio, low survival rate of mycorrhizal agent inoculation, easy blockage of feeding, and poor adaptability to operation. It can significantly improve the germination rate and strong seedling rate of forest seedling cultivation. Attached Figure Description

[0016] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the main structure of the seeder of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the main structure of the seeder of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the outer shell of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the outer shell of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the outer part of the bearing shell of the present invention; Figure 6 This is a schematic diagram of the overall structure of the material storage assembly of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the overall structure of the material storage assembly of the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the internal structure of the material storage assembly of the present invention; Figure 9This is a schematic diagram of the internal structure of the feeding assembly of the present invention; Figure 10 This is a schematic diagram of the flow guide tube structure of the present invention; Figure 11 This is a schematic diagram of the planar structure of the lower part of the supporting shell of the present invention.

[0017] Legend: 1. Seeder body; 11. Support shell; 111. Feed inlet; 112. Guide channel; 113. Support pole; 12. Push handle; 13. Traveling roller; 131. Drive gear; 132. Gear belt one; 133. Rotating gear one; 134. Transmission rotating rod; 1341. Conical roller; 1342. Synchronous transmission belt; 1343. Transmission gear; 14. Material storage assembly; 141. Material storage bin; 1411. Feed interface; 1412. Arc-shaped tube; 1413. Buffer rod; 1414. Sliding ring; 1415. L-shaped connecting rod; 1416. Extrusion plate; 1417. Elastic element; 1418. Discharge port; 1419. Cleaning brush plate; 142. Material baffle; 143. Guide pipe; 1431. Barrier plate; 144. Feeding assembly; 1441. Threaded pipe; 1442. Adjusting rotating ring; 1443. Adjusting rotating rod; 1444. Conical adjusting block; 1445. Transmission connecting pipe; 1446. Quantitative feeding ring; 1447. Storage trough; 1448. Volume control block; 1449. Driven transmission gear; 15. Feeding pipe. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0019] Reference Figure 1 , Figure 2As shown, the present invention provides a technical solution: a seedling sowing device that enables simultaneous application of mycorrhizal agents to forest trees, comprising a seeder body 1, the seeder body 1 including a supporting shell 11, a push handle 12 fixedly installed on the side of the supporting shell 11, and traveling rollers 13 rotatably installed on both sides of the lower end of the push handle 12, and two sets of independent storage components 14 fixedly installed inside the supporting shell 11, the two sets of storage components 14 being used to hold forest tree seeds and mycorrhizal agents respectively, and can simultaneously complete quantitative feeding operations. After the two materials are discharged through their respective discharge ports, they are mixed below the discharge ports and fall out synchronously, realizing the simultaneous application of mycorrhizal agents to forest trees. Two sets of support poles 113 are also fixedly installed at the lower end of the supporting shell 11 to maintain the overall balance of the seeder body 1 when it is parked. Two sets of feed inlets 111 are opened at the upper end of the supporting shell 11, and the two sets of feed inlets 111 are respectively connected to the feed ends of the two sets of storage components 14.

[0020] Reference Figure 3 , Figure 4 As shown in this embodiment: an active transmission gear 131 is fixedly mounted on the main shaft of the walking roller 13. Two sets of gear belts 132 mesh with the active transmission gear 131. The other end of the gear belts 132 meshes with a rotating gear 133. The rotating gear 133 and the gear belts 132 are both built into the hollow cavity of the push handle 12, and both are rotated with the push handle 12. A transmission rotating rod 134 is coaxially fixed between the two sets of symmetrically arranged rotating gears 133. The transmission rotating rod 134 horizontally penetrates the side wall of the bearing shell 11 and extends into its interior. It is rotatably connected to the bearing shell 11 through a rotating pair, so that the rotation of the walking rollers 13 on both sides can synchronously drive the transmission rotating rod 134 to rotate, realizing the linkage between the walking action and the unloading action.

[0021] Reference Figure 5 , Figure 6 As shown in this embodiment: On the outer circumferential surface of the transmission rotating rod 134, two sets of conical rollers 1341 are coaxially fixedly mounted with corresponding positions to the two sets of storage components 14. On the outer circumferential surface of the transmission rotating rod 134, two sets of transmission gears 1343 are also coaxially fixedly mounted. A synchronous transmission belt 1342 meshes with the transmission gears 1343. The transmission end of the synchronous transmission belt 1342 is meshed with the driven end of the corresponding side storage component 14 to synchronously transmit the rotational power of the traveling roller 13 to the two sets of storage components 14, ensuring that the two sets of storage components 14 discharge materials synchronously.

[0022] Reference Figure 5 , Figure 6 , Figure 7As shown in this embodiment: the storage assembly 14 includes a horizontally arranged cylindrical storage tank 141. The upper end of the storage tank 141 is provided with a feeding interface 1411 for feeding. The feeding interface 1411 corresponds vertically to and communicates with the feeding port 111 on the top of the supporting housing 11. Arc-shaped tubes 1412 are symmetrically fixedly installed on both sides of the feeding interface 1411. Buffer rods 1413 are movably inserted into the hollow cavities of both sets of arc-shaped tubes 1412. The lower ends of both sets of buffer rods 1413 are fixedly connected to sliding rings 1414. The sliding rings 1414 are coaxially slidably sleeved on the outer circumferential surface of the storage tank 141, with the sliding rings 1414 facing the transmission rotating rod 134. An L-shaped connecting rod 1415 is fixedly installed, and an extrusion plate 1416 that cooperates with the conical roller 1341 is fixedly installed at the upper end of the L-shaped connecting rod 1415. When the transmission rotating rod 134 rotates in conjunction with the walking roller 13, the conical roller 1341 rotates synchronously with the transmission rotating rod 134. Its protruding end forms a continuous intermittent extrusion drive on the extrusion plate 1416, which in turn pushes the sliding ring 1414 to rotate circumferentially along the outer circumference of the storage bucket 141 through the L-shaped connecting rod 1415. When the protruding end of the conical roller 1341 passes the extrusion plate 1416, the extrusion driving force disappears, and the sliding ring 1414 can be reset, thereby realizing the circumferential reciprocating rotation of the sliding ring 1414.

[0023] Reference Figure 7 As shown in this embodiment: the arc-shaped tube 1412 has a hollow cavity structure. An elastic element 1417 for resetting is fixedly installed inside the hollow cavity of the arc-shaped tube 1412. One end of the elastic element 1417 is fixed to the cavity end of the arc-shaped tube 1412, and the other end abuts against the end of the buffer rod 1413. When the sliding ring 1414 is squeezed and rotates, the buffer rod 1413 moves synchronously with the sliding ring 1414 and compresses the elastic element 1417. When the squeezing driving force disappears, the elastic element 1417 rebounds and pushes the buffer rod. 1413 resets, thereby driving the sliding ring 1414 back to its initial position, completing one reciprocating rotation. The material baffle 142 is coaxially rotatably installed in the inner cavity of the storage barrel 141. The material baffle 142 is a circular plate structure. Its inner ring forms a rotational fit with the outer wall of the feeding assembly 144. Its outer circumferential edge is fixedly connected to the inner wall of the sliding ring 1414. It can rotate synchronously with the circumferential reciprocating rotation of the sliding ring 1414, thereby continuously turning over the material in the storage barrel 141 to prevent the material from clumping and sticking.

[0024] Reference Figure 7 , Figure 8As shown, in a specific embodiment of the present invention: a feeding assembly 144 is coaxially installed through the axial center of the storage bin 141. The outer wall of the feeding assembly 144 forms a rotational engagement with the inner ring of the material partition plate 142. The feeding assembly 144 extends to the transmission end outside the storage bin 141 and is connected to the synchronous transmission belt 1342 through a transmission gear to receive the walking power transmitted by the walking roller 13.

[0025] Reference Figure 8 As shown, in a specific embodiment of the present invention: the feeding assembly 144 includes a threaded tube 1441, which is fixedly mounted on the side wall of the bearing housing 11. The inner hole of the threaded tube 1441 is threaded with an adjusting rotating rod 1443. The outer end of the adjusting rotating rod 1443 extending out of the bearing housing 11 is fixedly fitted with an adjusting rotating ring 1442. The adjusting rotating rod 1443 is located on the outer circumferential surface of the rod body inside the storage bucket 141, and two sets of conical adjusting blocks 1444 are coaxially fixedly fitted.

[0026] Reference Figure 7 , Figure 8As shown, in a specific embodiment of the present invention: the feeding assembly 144 further includes a transmission connecting pipe 1445. A driven transmission gear 1449 is coaxially fixed to the outer end of the transmission connecting pipe 1445. The driven transmission gear 1449 meshes with the synchronous transmission belt 1342, allowing the transmission connecting pipe 1445 to rotate synchronously with the rotation of the traveling roller 13. The transmission connecting pipe 1445 is coaxially sleeved on the outside of the adjusting rotating rod 1443, and the two form a rotational fit through bearings. Two sets of quantitative feeding rings 1446 are coaxially fixedly fitted in the middle section of the transmission connecting pipe 1445. Multiple sets of storage grooves 1447 with constant volume are evenly opened on the outer circumferential surface of the quantitative feeding rings 1446. The inner radial direction of the quantitative feeding rings 1446... The device is equipped with multiple sets of volume control blocks 1448 corresponding one-to-one with the storage tank 1447. The inner end of the volume control block 1448 abuts against the conical surface of the conical adjustment block 1444. When the device is moving, the rotation of the walking roller 13 is transmitted synchronously to the transmission connecting pipe 1445 through the synchronous transmission belt 1342, which drives the quantitative feeding ring 1446 to rotate synchronously. The material baffle 142 is located above the quantitative feeding ring 1446, which blocks the material in the storage tank 141 on the upper side of the quantitative feeding ring 1446. During the rotation, the storage tank 1447 receives the seeds or mycorrhizal agent in the storage tank 141 in turn, and conveys the quantitative material to the lower cavity of the storage tank 141 with the rotation, realizing quantitative feeding linked with the walking action. Meanwhile, the operator can rotate the adjusting ring 1442 to drive the adjusting rod 1443 to feed along the axial direction. The conical adjusting block 1444 on the rod radially presses the volume control block 1448, causing the volume control block 1448 to extend into the storage tank 1447, thereby changing the effective capacity of the storage tank 1447. This allows for precise adjustment of the single feeding amount of a single set of storage tanks 1447, adapting to the sowing and inoculant application needs of different tree species. At the same time, when the transmission rotating rod 134 rotates synchronously with the walking action, the conical roller 1341 intermittently squeezes the extrusion plate 1416, and with the reset action of the elastic element 1417, it drives the sliding ring 1414 to drive the material baffle 142 to rotate circumferentially along the inner wall of the storage barrel 141, continuously turning the material in the storage barrel 141, preventing the seeds or mycorrhizal agents from sticking or clumping and blocking the feeding channel. At the same time, it can evenly push the material into the storage trough 1447, ensuring the smoothness of the feeding process and the stability of the feeding amount.

[0027] Reference Figure 7 , Figure 9 , Figure 10As shown, in a specific embodiment of the present invention: a discharge port 1418 is provided at the center of the lower end of the storage tank 141, and the inner wall of the lower end of the storage tank 141 is a funnel-shaped converging slope, so that the falling materials can be gathered to the discharge port 1418 and discharged stably. A guide pipe 143 communicating with the discharge port 1418 is fixedly installed at the lower end of the storage tank 141. Two sets of guide grooves 112 communicating with the corresponding guide pipes 143 are provided inside the lower end of the bearing shell 11. A discharge pipe 15 communicating with both sets of guide grooves 112 is fixedly installed at the center of the lower end of the bearing shell 11. A spiral mixing blade 151 is fixedly installed on the inner wall of the discharge pipe 15. The seeds and mycorrhizal agents discharged from the two sets of storage tanks 141 are simultaneously gathered into the discharge pipe 15 through the guide pipe 143 and the guide trough 112. During the falling process, the materials are fully mixed by the guide and stirring of the spiral mixing blades 151, so that the mycorrhizal agent is evenly attached to the surface of the seeds. Finally, they fall into the seedling hole simultaneously, completing the simultaneous application of sowing and mycorrhizal agent.

[0028] Reference Figure 9-11 As shown, in a specific embodiment of the present invention: a plurality of parallel and spaced baffles 1431 are fixedly installed at the upper opening of the guide tube 143. Cleaning brushes are fixedly installed on both sides of the baffles 1431. A plurality of cleaning brushes 1419 are fixedly installed on the side of the sliding ring 1414 facing the opening of the guide tube 143. The multiple cleaning brushes 1419 extend into the gaps between adjacent baffles 1431, and reciprocate with the circumferential rotation of the sliding ring 1414. 419 can reciprocate within the gap of the baffle plate 1431, on the one hand breaking up and dispersing the clumped material to prevent large clumps from clogging the guide pipe 143, and on the other hand continuously cleaning the gap of the baffle plate 1431 to prevent material from getting stuck in the gap. At the same time, the cleaning brush on the baffle plate 1431 can simultaneously clean the surface of the cleaning plate 1419 to prevent material from adhering to the cleaning plate 1419, achieving a self-cleaning effect and fully ensuring the anti-blocking effect during the feeding process.

[0029] Working principle: When the operator holds the push handle 12 to push the seeder body 1 forward, the traveling roller 13 rotates synchronously with the movement of the device. The active transmission gear 131, coaxially fixed on its main shaft, drives the gear belt 132, which in turn drives the rotating gear 133 meshing with the gear belt 132 to rotate synchronously. This causes the transmission rotating rod 134, coaxially fixed between the two sets of rotating gears 133, to rotate in sync with the movement within the bearing housing 11. On one hand, the transmission gear 1343, coaxially fixed on the transmission rotating rod 134, drives the driven transmission gear 1449 of the corresponding material storage assembly 14 through the synchronous transmission belt 1342, causing the transmission connecting pipe 1445 to drive the driven transmission gear 1449 of the corresponding material storage assembly 14 to rotate. The fixed-axis quantitative feeding ring 1446 rotates synchronously. The storage trough 1447 on the outer circumference of the quantitative feeding ring 1446 rotates with it, receiving forest seeds or mycorrhizal agents from the corresponding storage hopper 141. This quantitatively delivers materials from the two independent storage components 14 to the lower end of the storage hopper 141. Simultaneously, the operator can rotate the rotating ring 1442 to drive the adjusting rotating rod 1443, which is threadedly engaged with the threaded tube 1441 on the side wall of the bearing housing 11, to feed axially. By adjusting the conical adjusting block 1444 on the rotating rod 1443 to radially compress the volume control block 1448 within the quantitative feeding ring 1446, the effective capacity of the storage trough 1447 is changed, achieving precise adjustment of the feeding amount. On the other hand, the transmission rotating rod 1443... The conical roller 1341, coaxially fixed to the corresponding position of the storage component 14, rotates synchronously with the rod body, intermittently squeezing the squeezing plate 1416 at the end of the L-shaped connecting rod 1415 on the sliding ring 1414. This pushes the sliding ring 1414, coaxially sleeved on the outer circumference of the storage bucket 141, to rotate circumferentially. This, in conjunction with the return elastic element 1417 inside the arc-shaped tubes 1412 on both sides of the feed interface 1411 at the upper end of the storage bucket 141, causes the buffer rod 1413 inside the arc-shaped tubes 1412 to spring back and reset, thus realizing the reciprocating rotation of the sliding ring 1414 along the circumference of the storage bucket 141. This, in turn, drives the material baffle 142, fixed to the inner side of the sliding ring 1414, in the inner cavity of the storage bucket 141 to synchronously reciprocate and turn the material, preventing the seeds and mycorrhizal agent from caking together. While the material clumps stick together, the cleaning plate 1419 at the lower end of the sliding ring 1414 reciprocates within the gap of the barrier plate 1431 at the upper opening of the guide pipe 143 at the lower end of the storage tank 141, breaking up the clumps and preventing blockage of the feeding channel. Finally, the material that falls quantitatively from the two sets of storage tanks 141 enters the corresponding guide groove 112 at the lower end of the supporting shell 11 through the lower discharge port 1418 and the guide pipe 143, and simultaneously converges into the feeding pipe 15 at the center of the lower end of the supporting shell 11. After being fully mixed by the spiral mixing blades on the inner wall of the feeding pipe 15, it falls out synchronously, completing the simultaneous application of forest tree seeds and mycorrhizal agents with the seeds. The support pole 113 fixed at the lower end of the supporting shell 11 can maintain the overall balance when the device is parked.

[0030] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A seedling sowing device that enables simultaneous application of mycorrhizal agents to forest trees along with the seed, characterized in that, It includes a supporting shell, a push handle is fixed to the side of the supporting shell, and walking rollers are rotatably installed on both sides of the lower end of the push handle; The outer shell of the carrier is fixed with two sets of independent storage components, which are used to hold tree seeds and mycorrhizal agents respectively. The main shaft of the traveling roller is coaxially fixed with a drive transmission gear. The drive transmission gear meshes with a gear belt. The other end of the gear belt meshes with a rotating gear. A transmission rotating rod is coaxially fixed between the two sets of symmetrically arranged rotating gears. The transmission rotating rod horizontally penetrates the side wall of the bearing shell and extends into its interior, and is rotatably connected to the bearing shell. On the rod body of the transmission rotating rod, at positions corresponding to the two sets of material storage components, conical rollers and transmission gears are coaxially fixed respectively. The transmission gear meshes with a synchronous transmission belt, and the transmission end of the synchronous transmission belt meshes with the driven end of the feeding component of the corresponding storage component to drive the two sets of feeding components to rotate synchronously with the traveling rollers. The storage assembly includes a storage barrel, the upper end of which is provided with a feeding interface communicating with the feeding port at the top of the bearing shell. A sliding ring is coaxially slidably sleeved on the outer circumference of the storage barrel. An extrusion plate is fixed to the side of the sliding ring facing the transmission rotating rod through an L-shaped connecting rod. The extrusion plate abuts against the conical roller. The material storage tank has symmetrically fixed arc-shaped tubes on both sides of the feed interface. A buffer rod is movably inserted through the hollow cavity of the arc-shaped tube. The lower end of the buffer rod is fixedly connected to the sliding ring. A reset elastic element is fixed inside the cavity of the arc-shaped tube. The end of the reset elastic element abuts against the buffer rod. A material baffle is coaxially arranged in the inner cavity of the storage hopper. The inner ring of the material baffle is rotatably engaged with the outer wall of the feeding assembly, and the outer circumferential edge of the material baffle is fixedly connected to the inner wall of the sliding ring.

2. The seedling sowing device for simultaneous application of forest tree mycorrhizal agents with seed as described in claim 1, characterized in that: The feeding assembly is coaxially arranged through the axis of the storage hopper, and the outer end of the feeding assembly extends out of the side wall of the supporting shell. The driven end of the feeding assembly is a driven transmission gear coaxially fixed to its extended end, and the driven transmission gear meshes with the synchronous transmission belt for transmission.

3. The seedling sowing device for simultaneous application of forest tree mycorrhizal agents with seed, as described in claim 2, is characterized in that: The feeding assembly includes a transmission connecting pipe, the driven transmission gear is coaxially fixed to the outer end of the transmission connecting pipe, and at least one set of quantitative feeding rings is coaxially fixed to the middle section of the transmission connecting pipe. Multiple sets of storage grooves are evenly opened on the outer circumference of the quantitative feeding rings.

4. The seedling sowing device according to claim 3, which enables simultaneous application of forest tree mycorrhizal agents with seed, is characterized in that: The lower end of the supporting shell is fixed with a feeding pipe that is connected to the discharge end of both sets of storage components, and the inner wall of the feeding pipe is fixed with spiral mixing blades.

5. The seedling sowing device according to claim 4, which enables simultaneous application of forest tree mycorrhizal agents with seed, is characterized in that: The quantitative feeding ring is equipped with multiple sets of volume control blocks that correspond one-to-one with the storage tank. The inner cavity of the transmission connecting pipe is coaxially provided with an adjusting rotating rod. A conical adjusting block that abuts against the inner end of the volume control block is coaxially fixed on the rod body of the adjusting rotating rod.

6. The seedling sowing device according to claim 5, which enables simultaneous application of forest tree mycorrhizal agents with seed, is characterized in that: A threaded tube is fixed to the side wall of the bearing housing. The adjusting rotating rod is threadedly engaged with the threaded tube. An adjusting rotating ring is coaxially fixed to the outer end of the adjusting rotating rod extending out of the bearing housing. A transmission connecting pipe is coaxially sleeved on the outside of the adjusting rotating rod. The transmission connecting pipe and the adjusting rotating rod are rotatedly engaged by a bearing.

7. The seedling sowing device according to claim 6, which enables simultaneous application of forest tree mycorrhizal agents with seed, is characterized in that: The storage hopper has a discharge port at the center of its lower end. The inner wall of the lower end of the storage hopper has a funnel-shaped converging slope. A guide pipe connected to the discharge port is fixed at the lower end of the storage hopper. Two sets of guide grooves are opened inside the lower end of the supporting shell and are respectively connected to the guide pipes. The end of the guide groove is connected to the discharge pipe.

8. The seedling sowing device according to claim 7, which enables simultaneous application of forest mycorrhizal agents with seed, is characterized in that: Multiple sets of parallel, spaced-apart barrier plates are fixed at the upper opening of the guide tube. Multiple sets of cleaning plates are fixed on the side of the sliding ring facing the opening of the guide tube. The multiple sets of cleaning plates extend into the gaps between adjacent barrier plates one by one.

9. The seedling sowing device according to claim 8, which enables simultaneous application of forest tree mycorrhizal agents with seed, is characterized in that: Cleaning brushes are fixed on both sides of the barrier plate, and the cleaning brushes abut against the surface of the cleaning plate.

10. The seedling sowing device according to claim 1, which enables simultaneous application of forest tree mycorrhizal agents with seed, is characterized in that: The reset elastic element is a compression spring. One end of the compression spring is fixedly connected to the end of the cavity of the arc-shaped tube, and the other end is engaged with the end of the buffer rod.

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