A hole-seeding structure

Abstract

This invention relates to the field of agricultural machinery technology and discloses a seeding structure, including a main component comprising a seeding box with multiple storage cavities; a controlled discharge component comprising several feeding trays and feeding trays fixed inside the seeding box and spaced apart in the height direction, with a controllable opening and closing of a blocking port at the center of the bottom of each tray, and a controllable opening and closing of a discharge port at the center of the bottom of the seeding box; and a seed metering component fixedly connected below the seeding box, comprising a first shell and a second shell connected together, with a seeding disc rotatably connected between the first shell and the second shell, the seeding disc having connecting countersunk holes arranged on it, and a movable shaft movably connected to the seeding disc via the connecting countersunk holes, the end of the movable shaft away from the center of the seeding disc having a notch, and a discharge cavity for accommodating material formed between the outer edge of the notch and the wall of the seeding disc around the connecting countersunk holes. This invention can adjust the number of seeds accommodated at the seed filling port and can also achieve uninterrupted sowing of multiple types of seeds, improving the efficiency of sowing operations.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a hole-sowing structure. Background Technology

[0002] In hill seeding, a rotary seed metering assembly is typically used to rotate and meter the seeds in the seed box, thus achieving quantitative and fixed-distance seed sowing. Existing hill seeding structures specifically include a seed box, with a seed metering assembly fixedly connected to the lower side of the seed box. The seed metering assembly includes two shells fixedly connected to the bottom of the seed box, and a hill seeding disc rotatably connected within the two shells. The hill seeding disc has several fixedly positioned holes, and the seeds in the seed box fall into these holes. This means that the number of seeds held in each hole is the same. At the same rotation speed, it is impossible to adjust the sowing quantity. Furthermore, each seed box can only discharge one type of material at a time, making it impossible to discharge multiple materials simultaneously while maintaining continuous material storage. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing seeding operations, the present invention is proposed.

[0005] Therefore, the problem that this invention aims to solve is that it is impossible to adjust the number of seeds sown and to discharge multiple materials without interrupting material storage.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hole-seeding structure, comprising,

[0007] The main component includes a feeding box with multiple storage cavities;

[0008] The material discharge control assembly includes several feeding trays and feeding trays fixed inside the feeding box and spaced apart in the height direction. Material storage cavities are formed between the lower side of the feeding tray and the inner wall of the feeding box, the upper side of the feeding tray, the inner wall of the feeding box and the lower side of the feeding tray, and the upper side of the feeding tray and the inner wall of the feeding box. A controllable material blocking port is opened at the center of the bottom of the feeding tray, and a controllable material discharge port is opened at the center of the bottom of the feeding box.

[0009] A seed metering assembly is fixedly connected to the bottom of the seeding box. The seed metering assembly includes a first shell and a second shell. The first shell and the second shell are arranged opposite to each other in the left-right direction and connected together. A seeding disc is rotatably connected between the first shell and the second shell. Connecting countersunk holes are arranged on the seeding disc. A movable shaft is movably connected to the seeding disc through the connecting countersunk holes. The end of the movable shaft away from the center of the seeding disc has a recess. A material discharge cavity is formed between the outer edge of the recess and the outer periphery of the seeding disc wall to accommodate the material.

[0010] The seeding tray is powered by a seed metering shaft, which is powered by a seed metering motor on the frame. This is existing technology and not an improvement in this application. Neither the seed metering shaft nor the seed metering motor is shown, but this does not affect the understanding of those skilled in the art. Before operation, the position of the seed holes in the connecting holes is adjusted according to the required seeding quantity. The moving shaft is then loosened to allow it to move within the connecting holes. When the seed hole moves to the appropriate position, the moving shaft is fixed to adjust the number of seeds that can be accommodated at the end of the seed hole furthest from the center of the seeding tray. Different storage chambers contain... The required seeds are set sequentially from bottom to top according to the sowing order. During seeding, the seeds in the bottom storage chamber are emptied first. When the machine moves to the next work area and a second seed needs to be sown, the bottom blocking port is opened, and the seeds in the middle storage chamber are discharged downwards until the seeds in the middle storage chamber are completely sown. When a third seed needs to be sown, the top blocking port is opened, and the seeds in the top storage chamber are discharged downwards until the seeds in the top storage chamber are completely sown. This achieves uninterrupted sowing of multiple types of seeds and improves the efficiency of sowing operations.

[0011] As a preferred embodiment of the seeding structure of the present invention, the seeding disc has several movable slots arranged on it, and a through hole is opened on the movable shaft. The central axis of the through hole is perpendicular to the central axis of the movable shaft. The movable shaft is connected to a connecting shaft through the through hole. The connecting shaft passes through a corresponding movable slot, a through hole and another movable slot in sequence. Rollers are connected to both ends of the connecting shaft in the axial direction. Washers are fitted on the rollers. A limit nut is threaded on the connecting shaft outside the washer. The limit nut restricts the axial movement of the washer.

[0012] In a preferred embodiment of the seeding structure described in this invention: a return spring is connected between the inner end of the moving shaft and the seeding disc inside the connecting countersunk hole; an installation port is opened on the first housing; an adjusting ring is connected between the seeding disc and the inner wall of the first housing in the axial direction; the adjusting ring is rotatably connected inside the first housing; the inner radius of the adjusting ring is of different sizes; a washer abuts against the inner side of the adjusting ring; the return spring is always in a compressed state; an adjusting housing is fixedly connected to the side of the first housing away from the second housing; an arc-shaped adjusting groove is opened on the adjusting housing; the installation port covers the adjusting groove; a connecting ear is fixed to the outside of the adjusting ring; and a position fixing component is connected to the connecting ear.

[0013] As a preferred embodiment of the seeding structure described in this invention, the controlled discharge assembly further includes a drive shaft rotatably connected to the seeding box. A top material sleeve slidably connected to the seeding box is threaded onto the drive shaft extending into the lowest storage cavity. A lower blocking block is fixed at the bottom of the top material sleeve, which can just block the discharge port. An intermediate blocking block and an upper blocking block are respectively inserted into the blocking ports of the lower and upper material trays. An upwardly extending intermediate transmission sleeve is fixed on the intermediate blocking block. When the top material sleeve moves upward and pushes the intermediate blocking block upward so that the intermediate blocking block completely leaves the lower blocking port, the intermediate transmission sleeve fits against the lower side of the upper blocking block. The drive shaft is rotatably connected within the intermediate transmission sleeve and the upper transmission sleeve.

[0014] As a preferred embodiment of the seeding structure of the present invention, a lower stirring sleeve is rotatably connected to the feeding plate below the intermediate blockage block, an intermediate stirring sleeve is rotatably connected to the feeding plate below the upper blockage block, and an upper stirring sleeve is rotatably connected to the seeding box above the feeding plate. The outer ends of the top sleeve, the intermediate transmission sleeve, and the upper transmission sleeve are all provided with transmission columns that cooperate with the corresponding spiral sink. A plurality of stirring rods are arranged on the outer periphery of the lower part of the stirring sleeve. The stirring rod includes an upper stirring part that is fixed to the outside of the stirring sleeve and inclined downwards. The end of the upper stirring part away from the stirring rod is fixed with a lower stirring part that is inclined downwards and extends toward the direction of the corresponding blockage block.

[0015] As a preferred embodiment of the seeding structure described in this invention, the lower blocking block, the middle blocking block and the upper blocking block have the same structure. The lower blocking block includes a plug-in part that is just inserted into the discharge port, and an anti-slip part that can fit against the upper side of the inner wall of the bottom of the seeding box is fixed on the upper side of the plug-in part.

[0016] As a preferred embodiment of the seeding structure described in this invention, the lower sides of the three lower stirring parts arranged from top to bottom rotate along the upper side of the feeding tray, the upper side of the unloading tray, and the upper side of the inner wall of the bottom of the seeding box, respectively.

[0017] As a preferred embodiment of the seeding structure described in this invention, the bottom of the upper and lower feed trays are respectively connected to limiting sleeves, and the upper stirring sleeve, the middle stirring sleeve and the upper stirring sleeve have the same structure. The upper part of the lower stirring sleeve is provided with several sliding rods, and a rotating ring is fixed on the outer periphery of the sliding rods. A rotating groove is provided on the lower side of the upper feed tray. The rotating ring is rotatably connected to the limiting part and the upper feed tray through the limiting groove and the rotating groove respectively. The inner edge of the rotating ring does not exceed the outer edge of the discharge port.

[0018] As a preferred embodiment of the seeding structure described in this invention, the upper and lower feed trays have the same structure. The upper feed tray includes a connecting ring that is inserted into the seeding box. A sliding part is fixed inside the connecting ring. The sliding part is a cone shape with an outer diameter that gradually decreases from top to bottom. A limiting sleeve is connected to the corresponding sliding part.

[0019] As a preferred embodiment of the seeding structure of the present invention, the upper end of the seeding box is fixedly connected to a top plate, and a material control motor is fixedly connected to the upper side of the top plate. The material control motor is connected to a transmission shaft. The top plate is fixed with a first feeding hopper communicating with the uppermost storage chamber, a second feeding hopper communicating with the middle storage chamber, and a third feeding hopper communicating with the lowermost storage chamber. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 A three-dimensional structure for hole seeding Figure 1 .

[0022] Figure 2 A 3D structural diagram of the seeding component after the first shell has been hidden.

[0023] Figure 3 This is a three-dimensional structural diagram of the overall box body in the present invention with the box body set to a transparent state.

[0024] Figure 4 for Figure 3 A magnified view of the structure at point A in the middle.

[0025] Figure 5 This is a three-dimensional structural diagram of the present invention with both the main box and the feeding box set to be transparent.

[0026] Figure 6 for Figure 5 A magnified view of the structure at point B in the middle section.

[0027] Figure 7 for Figure 5 A magnified view of the structure at point C.

[0028] Figure 8 This is a three-dimensional structural diagram of the present invention with the main box and seeding assembly hidden, and the seeding box, top plate and lower mixing sleeve in a transparent state.

[0029] Figure 9 for Figure 8 Enlarged view of the structure at point D.

[0030] Figure 10 Partial cross-section of the present invention Figure 1 .

[0031] Figure 11A three-dimensional structure for hole seeding Figure 2 .

[0032] Figure 12 for Figure 11 A magnified view of a section at point E in the middle.

[0033] Figure 13 Partial cross-section of the present invention Figure 2 .

[0034] Figure 14 for Figure 13 A magnified view of a section at point F.

[0035] In the diagram: 100 Main Component, 101 Overall Housing, 102 Top Plate, 103 Third Feed Hopper, 104 First Feed Hopper, 105 Second Feed Hopper, 106 Feeding Box, 106-1 Insertion Sink, 107 Feeding Plate, 107-1 Connecting Protrusion, 108 Feeding Plate, 109 Limiting Block, 109-1 Mounting Hole, 110 Guide Connecting Rod, 111 Limiting Nut, 200 Seeding Component, 201 First Housing, 201-1 Mounting Port, 202 Seeding Plate, 202-1 Connecting Sink, 203 Adjusting Housing, 203-1 Adjusting Slot, 204 Position Fixing Component, 205 Second Housing, 206 Limiting Nut, 207 Return Spring, 208 Washer, 209 Roller 210 Connecting shaft, 211 Adjusting ring, 211-1 Connecting ear, 212 Moving shaft, 212-1 Hole, 300 Discharge control assembly, 301 Horizontal rod, 302 Guide rod, 303 Drive shaft, 304 Lower blocking block, 305 Top material sleeve, 305-1 Drive column, 306 Material control motor, 307 Stirring rod, 307-1 Lower stirring part, 307-2 Upper stirring part, 308 Upper stirring sleeve, 308-1 Sliding rod, 308-2 Rotating ring, 309 Connecting seat, 310 Intermediate stirring sleeve, 311 Lower stirring sleeve, 311-1 Spiral settling trough, 312 Limiting sleeve, 312-1 Limiting settling trough, 313 Coupling, 314 Upper blocking block, 315 Intermediate blocking block. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1: Refer to Figure 1 This is the first embodiment of the present invention, which provides a seeding structure, including a main component 100. The main component 100 includes a main box 101, and a seeding box 106 with multiple storage cavities is detachably connected inside the main box 101. A top plate 102 is fixedly connected to the upper end of the seeding box 106. A first feed hopper 104 communicating with the uppermost storage cavity, a second feed hopper 105 communicating with the middle storage cavity, and a third feed hopper 103 communicating with the lowermost storage cavity are fixed on the top plate 102. A controllable discharge component 300 is connected to the seeding box 106, and a seeding component 200 for discharging material is fixedly connected to the lower side of the main box 101.

[0040] Specifically, the material control assembly 300 includes several feeding trays 107 and feeding trays 108 fixed inside the feeding box 106 and spaced apart in the height direction. The feeding tray 108 and the feeding tray 107 have the same structure. The feeding tray 108 includes a connecting ring that fits into the feeding box 106. A sliding part is fixed inside the connecting ring. The sliding part is a cone with an outer diameter that gradually decreases from top to bottom. The material always has a downward tendency on the sliding part. The limiting sleeve 312 is connected to the corresponding sliding part. Storage cavities are formed between the lower side of the feeding tray 107 and the inner wall of the feeding box 106, the upper side of the feeding tray 107, the inner wall of the feeding box 106 and the lower side of the feeding tray 108, and the upper side of the feeding tray 108 and the inner wall of the feeding box 106. A controllable blocking port is opened at the center of the bottom of the feeding tray, and a controllable discharge port is opened at the center of the bottom of the feeding box 106.

[0041] Specifically, the seed metering assembly 200 includes a first housing 201 and a second housing 205. The first housing 201 and the second housing 205 are arranged opposite to each other in the left-right direction and connected together. A seeding disc 202 is rotatably connected between the first housing 201 and the second housing 205. The outer periphery of the seeding disc 202 rotates along the inner wall of the first housing 201 and the second housing 205. The seeding disc 202 has connecting countersunk holes. The seeding disc 202 is movably connected to a movable shaft 212 that can move along the radial direction of the seeding disc 202 through the connecting countersunk holes. The end of the movable shaft 212 away from the center of the seeding disc 202 has a recess 212-1. A material discharge cavity is formed between the outer edge of the recess 212-1 and the wall of the seeding disc 202 around the connecting countersunk holes. A seed guide tube for guiding seeds is fixedly connected to the bottom of the first housing 201 and the second housing 205. The bottom of the first housing 201 and the second housing 205 has a seed metering port that communicates with the inner cavity of the seed guide tube.

[0042] During implementation, the main housing 101 is fixed to the frame; the seeding tray 202 is powered by a seed metering shaft, which is powered by a seed metering motor on the frame. This is prior art and not an improvement in this application. Neither the seed metering shaft nor the seed metering motor is shown, but this does not affect the understanding of those skilled in the art; the first housing 201 and the second housing 205 are also connected to brushes for cleaning seeds, which are not shown in this application; before operation, the position of the seed holes 212-1 within the connecting countersunk hole is adjusted according to the required seeding quantity. The moving shaft 212 is loosened, allowing it to move within the connecting countersunk hole. When the seed holes 212-1 move to the appropriate position, the moving shaft 212 is fixed. The system allows adjustment of the number of seeds that can be held at the end of the seeding tray 202 away from the center of the seeding hole 212-1. Different storage chambers contain the required seeds, which are set sequentially from bottom to top according to the sowing order. During seeding, the seeds in the bottom storage chamber are emptied first. When the machine moves to the next work area and a second seed needs to be sown, the bottom blocking port is opened, and the seeds in the middle storage chamber are discharged downwards until the seeds in the middle storage chamber are completely discharged. When a third seed needs to be sown, the top blocking port is opened, and the seeds in the top storage chamber are discharged downwards until the seeds in the top storage chamber are completely discharged. This allows for uninterrupted sowing of multiple types of seeds and improves the efficiency of sowing operations.

[0043] Specifically, the seeding disc 202 has several movable grooves, and the movable shaft 212 has a through hole. The central axis of the through hole is perpendicular to the central axis of the movable shaft 212. The movable shaft 212 is connected to a connecting shaft 210 through the through hole. The connecting shaft 210 passes through one movable groove, the through hole, and another movable groove in sequence. Rollers 209 are connected to both ends of the connecting shaft 210 in the axial direction. Washers 208 are fitted on the rollers 209. A limit nut 206 is threaded onto the connecting shaft 210 outside the washer 208. The limit nut 206 restricts the axial movement of the washer 208. A return spring 207 is connected between the inner end of the movable shaft 212 and the seeding disc 202 inside the countersunk hole. The first housing 201 has an installation port 201. -1, an adjusting ring 211 is connected between the inner wall of the seeding disc 202 and the first housing 201 in the axial direction. The adjusting ring 211 is rotatably connected inside the first housing 201. The inner radius of the adjusting ring 211 is of different sizes. The washer 208 abuts against the inner side of the adjusting ring 211. The return spring 207 is always in a compressed state. An adjusting housing 203 is fixedly connected to the side of the first housing 201 away from the second housing 205. An arc-shaped adjusting groove 203-1 is opened on the adjusting housing 203. The mounting port 201-1 covers the adjusting groove 203-1. A connecting ear 211-1 is fixed to the outside of the adjusting ring 211. A position fixing member 204 is connected to the connecting ear 211-1. The position fixing member 204 is preferably threadedly connected to the connecting ear 211-1.

[0044] Adjust the number of seeds that the seed tray 202 in the area where the seed filling port is located can hold as needed, that is, the volume between the outer side of the seed hole 212-1 and the outer edge of the corresponding connecting hole. The adjustment method is as follows: loosen the position fixing piece 204, rotate the adjusting ring 211 through the position fixing piece 204, rotate the appropriate inner diameter position to the position of the seed filling port, screw in the position fixing piece 204 so that the outer end of the position fixing piece 204 presses against the adjusting housing 203, screw the inner end of the position fixing piece 204 into the second housing 205 to fix the adjusting ring 211. When the inner diameter of the adjusting ring 211 is at the larger position, the connecting shaft 210 moves outward under the action of the return spring 207, and the washer 208 abuts. Inside the adjusting ring 211, at the position where the inner diameter of the adjusting ring 211 is small, the return spring 207 is further compressed, and the washer 208 abuts against the inner side of the adjusting ring 211. Looking along the rotation direction of the seeding tray 202, the inner diameter of the adjusting ring 211 is small from the seed filling port to the seed dispensing port near the bottom of the seed dispensing component 200, and the inner diameter of the adjusting ring 211 becomes larger in the area above the seed dispensing port. When the seed hole 212-1 rotates to the seed dispensing port area, the seed hole 212-1 bounces down under the action of the return spring 207, causing the seeds to be ejected and discharged into the hole. This can not only adjust the number of seeds, but also make the seeds bounce down with a certain force when they reach the seed dispensing port area, thus improving the sowing effect.

[0045] Example 2: Refer to Figures 1-10The difference between this embodiment and Embodiment 1 is that this embodiment is based on Embodiment 1 and can further achieve controllable and reliable material discharge.

[0046] Specifically, the material control assembly 300 further includes a drive shaft 303 rotatably connected to the feeding box 106. A material control motor 306 is fixedly connected to the upper side of the top plate 102. The material control motor 306 is connected to the drive shaft 303 via a coupling 313. A top material sleeve 305, which is slidably connected to the feeding box 106, is threaded onto the drive shaft 303 extending into the lowest storage cavity. A lower blocking block 304 is fixed to the bottom of the top material sleeve 305, which can just block the discharge port. An intermediate blocking block 315 and an upper blocking block 314 are respectively inserted into the blocking ports of the feeding tray 107 and the feeding tray 108. The lower blocking block 304, the intermediate blocking block 315, and the upper blocking block 314 have the same structure. The lower blocking block 304 includes an insertion part that just inserts into the discharge port. An anti-slip part that can fit against the upper side of the bottom inner wall of the feeding box 106 is fixed on the upper side of the insertion part. An upwardly extending intermediate transmission sleeve is fixed on the plug block 315. When the top material sleeve 305 moves upward and pushes against the intermediate plug block 315, causing the intermediate plug block 315 to completely leave the lower plugging port, the intermediate transmission sleeve is attached to the lower side of the upper plug block 314. The transmission shaft 303 is rotatably connected in the intermediate transmission sleeve and the upper transmission sleeve. A vertical rod is fixedly connected to the lower side of the feeding box 106. A horizontal rod 301 extending towards the center of the insertion part is fixed at the bottom of the vertical rod. The upper side of the horizontal rod 301 has an inclined surface that slopes downward from the middle to both sides, so that the seeds slide down along the inclined surface and do not accumulate on the horizontal rod 301. A guide rod 302 is connected to the horizontal rod 301. Guide holes are opened on both the insertion part and the top material sleeve 305. The guide rod 302 is inserted into the lower plug block 304 and the top material sleeve 305 through the guide holes. The lower plug block 304 and the top material sleeve 305 slide along the guide rod 302 through the guide holes.

[0047] When the drive shaft 303 rotates, it drives the top sleeve 305 to move, controls the rotation direction of the drive shaft 303, and causes the top sleeve 305 to move upward. The top sleeve 305 drives the lower blocking block 304 to move upward. When the lower blocking block 304 completely leaves the discharge port, the upper side of the top sleeve 305 abuts against the lower side of the middle blocking block 315.

[0048] Specifically, a lower stirring sleeve 311 is rotatably connected to the feeding plate 107 below the intermediate blocking block 315, and an intermediate stirring sleeve 310 is rotatably connected to the feeding plate 108 below the upper blocking block 314. A connecting seat 309 is fixedly connected to the lower side of the top plate 102, and an upper stirring sleeve 308 is rotatably connected to the connecting seat 309. The outer ends of the top sleeve 305, the intermediate transmission sleeve, and the upper transmission sleeve are all provided with transmission columns 305-1 that cooperate with the corresponding spiral troughs 311-1. In the initial state, that is, when each blocking block completely blocks the corresponding material inlet, the transmission columns 305-1 are located at the lower part of the spiral troughs 311-1. The outer periphery of the lower part of each stirring sleeve is respectively... A plurality of stirring rods 307 are arranged, each stirring rod 307 including an upper stirring part 307-2 fixed to the outside of the stirring sleeve and inclined downwards. The end of the upper stirring part 307-2 away from the stirring rod 307 is fixed with a lower stirring part 307-1 that is inclined downwards and extends toward the direction of the corresponding blockage block. The inner edge of the lower stirring part 307-1 can rotate around the outer periphery of the corresponding anti-downward movement part. The lower sides of the three lower stirring parts 307-1 arranged from top to bottom rotate along the upper side of the upper side of the upper feeding plate 108, the upper side of the lower feeding plate 107, and the upper side of the inner wall of the bottom of the seeding box 106, respectively, to prevent the seeds from sticking to the inclined inner wall of the bottom of the seeding box 106 or the inclined surface of the feeding plate, and further promote the discharge of materials in each storage chamber.

[0049] The seeds stored in different storage cavities can be the same or different seeds, depending on actual needs. When the top sleeve 305 moves upward, it drives the lower stirring sleeve 311 to rotate via the corresponding transmission column 305-1. The lower stirring sleeve 311 drives the stirring rod 307 to rotate. The upper stirring part 307-2 continuously stirs the seeds in the lower storage cavity, making the seeds flow and not stick together. The lower stirring part 307-1 continuously scrapes the seeds on the bottom inner wall of the seeding box 106, making the seeds on the wall flow and not stick together, thereby promoting the seeds to slide down the bottom inner wall of the seeding box 106 and promoting the discharge of seeds in the storage cavity. When the top sleeve 305 moves to the first set appropriate position, that is, the upper side of the top sleeve 305... When the drive shaft 303 stops rotating, it is attached to the lower side of the intermediate block 315. When the seeds in the storage cavity are emptied and it is necessary to move to a new working area to discharge the seeds in the intermediate storage cavity, the drive shaft 303 continues to rotate, and the top sleeve 305 continues to move upward. The top sleeve 305 pushes the intermediate block 315 upward, and when the intermediate block 315 moves upward, it drives the intermediate mixing sleeve 310 to rotate. At the same time, the lower mixing sleeve 311 also rotates. The lower mixing sleeve 311 further scrapes the seeds that may remain in the previous discharging process and further scrapes the seeds remaining on the bottom inner wall of the seed box 106, promoting the emptying of the seeds in the lowest storage cavity. The intermediate mixing sleeve 310 drives the corresponding mixing rod 307 to rotate, and the upper mixing sleeve 311 further scrapes the seeds that may remain in the previous discharging process and further scrapes the seeds remaining on the bottom inner wall of the seed box 106, promoting the emptying of the seeds in the lowest storage cavity. The intermediate mixing sleeve 310 drives the corresponding mixing rod 307 to rotate, and the upper mixing sleeve 310 rotates. The principle is similar. During the upward movement of the intermediate blocking block 315, it promotes seed flow and prevents seeds from sticking together. At the same time, it scrapes the upper wall of the feeding tray 107 to prevent seeds from sticking to the wall of the feeding tray 107. When the intermediate blocking block 315 begins to leave the discharge port, the seeds fall into the filling port of the seed discharging component 200 along the blocking port and the discharge port until the intermediate transmission sleeve touches the lower side of the upper transmission sleeve, and the transmission shaft 303 stops moving. When the seeds in the intermediate storage chamber are discharged and it is necessary to change to a new working area to discharge the seeds in the upper storage chamber, the transmission shaft 303 continues to rotate, and the top sleeve 305 continues to move upward. The top sleeve 305 moves upward through the intermediate transmission sleeve against the upper transmission sleeve, and the intermediate transmission sleeve drives the intermediate agitator. The rotating sleeve 310 further scrapes the seeds remaining on the feeding tray 107, so that the seeds in the upper storage cavity can fall down, and further clean the seeds that may remain on the wall of the feeding tray 107, promoting the complete discharge of seeds; the upper transmission sleeve drives the upper stirring sleeve 308 to rotate, and the upper stirring sleeve 308 drives the corresponding stirring rod 307 to rotate. Similar to the above principle, as the upper blocking block 314 moves upward, it can promote the flow of seeds and avoid the adhesion between seeds. At the same time, it scrapes the upper wall of the feeding tray 108 to prevent the seeds from sticking to the wall of the feeding tray 108. When the upper blocking block 314 begins to leave the discharge port, the seeds fall into the filling port of the seed discharging component 200 along the two blocking ports and the discharge port until the upper transmission sleeve moves up to the appropriate position;Because the upper storage chamber is positioned high, to further promote the discharge of seeds from the upper storage chamber, the drive shaft 303 rotates cyclically, causing the upper blocking block 314 to move up and down within a set range. The range of up and down movement is designed not to affect seed discharge, thereby improving the seed discharge effect.

[0050] Furthermore, the bottoms of the feeding tray 108 and the unloading tray 107 are respectively connected to limiting sleeves 312. A limiting groove 312-1 is formed at the upward-facing end of the limiting sleeve 312. The upper stirring sleeve 308, the middle stirring sleeve 310, and the upper stirring sleeve 308 have the same structure. Several sliding rods 308-1 are arranged on the upper part of the lower stirring sleeve 311. A rotating ring 308-2 is fixed to the outer periphery of each sliding rod 308-1. A rotating groove is formed on the downward-facing side of the feeding tray 108. The rotating ring 308-2 is rotatably connected to the limiting part and the feeding tray 107 via the limiting groove 312-1 and the rotating groove, respectively. Within 08, the inner edge of the rotating ring 308-2 does not exceed the outer edge of the discharge port; the feeding tray 107 and the feeding tray 108 have the same structure, the inner side of the feeding box 106 has two insertion grooves, the outer periphery of the feeding tray 107 is fixed with connecting protrusions 107-1 corresponding to the insertion grooves, the connecting protrusions 107-1 have inner connecting holes, the feeding box 106 has outer connecting holes corresponding to the connecting holes, the feeding box 106 has two slots communicating with the insertion grooves, the feeding box 106 is inserted into the slots with a limiting block 109, the inner end of the limiting block 109 can be inserted into the insertion groove.

[0051] Before installing the feeding tray 107, the limiting sleeve 312 and the lower mixing sleeve 311 have been installed on the feeding tray 107. The limiting sleeve 312 is fixedly connected to the feeding tray 107, and the lower mixing sleeve 311 is rotatably connected between the limiting sleeve 312 and the feeding tray 107. To install the feeding tray 107, align the connecting protrusion 107-1 of the feeding tray 107 with the insertion groove and insert it into the feeding box 106 until the connecting protrusion 107-1 abuts against the feeding box 106 on the lower side of the insertion groove. The bottom of the feeding tray 107 is inserted into the limiting groove 312-1 of the lowest limiting sleeve 312, and the bottom side of the feeding tray 107 is attached to the upper side of the lower mixing sleeve 311. Use fasteners to screw into the outer and inner connecting holes to fix the feeding tray 107 to the feeding box 106. The limiting block 109 has a mounting hole 109-1. Insert a pin into the mounting hole 109-1 of 09, and insert the limiting block 109 into the slot and the insertion groove through the pin. When the limiting block 109 abuts against the feeding box 106, the outer periphery of the limiting block 109 does not exceed the outer periphery of the feeding box 106. Align the connecting protrusion 107-1 on the feeding tray 108 with the insertion groove. The spiral groove 311-1 on the upper mixing sleeve 308 allows the transmission column 305-1 on the intermediate transmission sleeve to be inserted. Insert the feeding tray 108 into the feeding box 106 until the bottom side of the connecting protrusion 107-1 on the feeding tray 108 abuts against the upper side of the limiting block 109. Use fasteners to screw into the corresponding outer connecting hole and the inner connecting hole of the connecting protrusion 107-1 on the feeding tray 108, so that the feeding tray 108 is fixedly connected to the feeding box 106, thereby realizing the installation of the unloading tray 107 and the feeding tray 108.

[0052] Example 3: Reference Figure 13 and Figure 14 This is the third embodiment of the present invention. The difference between this embodiment and embodiments 1 and 2 is that this embodiment can further improve the reliability of the connection between the feed tray 107 and the feed tray 108 in the feeding box 106.

[0053] Specifically, a guide connecting rod is fixed inside the feeding box 106 on the lower side of the insertion sink 106-1. A guide hole is opened on the connecting protrusion 107-1, and the connecting protrusion 107-1 is sleeved on the guide connecting rod through the guide hole. The connecting protrusion 107-1 and the guide connecting rod are fitted with a clearance fit. The outer circumference of the guide connecting rod is provided with external threads. When the connecting protrusion 107-1 of the feeding tray abuts against the feeding box on the lower side of the insertion sink 106-1, a limit nut is screwed onto the guide connecting rod to press the feeding tray tightly. On the seeding box 106, the feeding tray 107 is restricted from moving upward. When the lower side of the feeding tray 108 abuts against the upper side of the limiting block 109, the limiting nut is screwed onto the guide connecting rod. The limiting nut presses the feeding tray 108 against the limiting block 109, restricting the upward movement of the feeding tray 108 in the height direction. This not only facilitates the installation of the feeding tray 108 and the feeding tray 107, but also ensures the reliability of the connection structure between the tray and the seeding box 106. The tray is fixed relative to the seeding box 106 to improve the reliability of the seeding operation.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hole-seeding structure, characterized in that: include, The main component includes a feeding box with multiple storage cavities; The material discharge control assembly includes several feeding trays and feeding trays fixed inside the feeding box and spaced apart in the height direction. Material storage cavities are formed between the lower side of the feeding tray and the inner wall of the feeding box, the upper side of the feeding tray, the inner wall of the feeding box and the lower side of the feeding tray, and the upper side of the feeding tray and the inner wall of the feeding box. A controllable material blocking port is opened at the center of the bottom of the feeding tray, and a controllable material discharge port is opened at the center of the bottom of the feeding box. A seed metering assembly is fixedly connected to the bottom of the seeding box. The seed metering assembly includes a first shell and a second shell. The first shell and the second shell are arranged opposite to each other in the left-right direction and connected together. A seeding disc is rotatably connected between the first shell and the second shell. Connecting countersunk holes are arranged on the seeding disc. A movable shaft is movably connected to the seeding disc through the connecting countersunk holes. The end of the movable shaft away from the center of the seeding disc has a recess. A material discharge cavity is formed between the outer edge of the recess and the outer periphery of the seeding disc wall to accommodate the material.

2. The hole-seeding structure as described in claim 1, characterized in that: The seeding disc has several movable slots arranged on it, and a through hole is opened on the movable shaft. The central axis of the through hole is perpendicular to the central axis of the movable shaft. The movable shaft is connected to a connecting shaft through the through hole. The connecting shaft passes through one movable slot, the through hole and another movable slot in sequence. Rollers are connected to both ends of the connecting shaft in the axial direction. Washers are fitted on the rollers. A limit nut is threaded on the connecting shaft outside the washer. The limit nut restricts the axial movement of the washer.

3. The seeding structure as described in claim 2, characterized in that: A return spring is connected between the inner end of the moving shaft and the seeding disc inside the connecting countersunk hole. An installation port is opened on the first housing. An adjusting ring is connected between the seeding disc and the inner wall of the first housing in the axial direction. The adjusting ring is rotatably connected inside the first housing. The inner radius of the adjusting ring is of different sizes. The washer abuts against the inner side of the adjusting ring. The return spring is always in a compressed state. An adjusting housing is fixedly connected to the side of the first housing away from the second housing. An arc-shaped adjusting groove is opened on the adjusting housing. The installation port covers the adjusting groove. A connecting ear is fixed to the outside of the adjusting ring. A position fixing component is connected to the connecting ear.

4. The seeding structure as described in any one of claims 1 to 3, characterized in that: The material control and discharge assembly also includes a drive shaft rotatably connected to the feeding box. A top material sleeve slidably connected to the feeding box is threaded onto the drive shaft extending into the lowest storage chamber. A lower blocking block is fixed at the bottom of the top material sleeve, which can just block the discharge port. A middle blocking block and an upper blocking block are respectively inserted into the blocking ports of the feeding tray and the feeding tray. An upwardly extending middle transmission sleeve is fixed on the middle blocking block. When the top material sleeve moves upward and pushes the middle blocking block upward so that the middle blocking block is completely away from the lower blocking port, the middle transmission sleeve fits against the lower side of the upper blocking block. The drive shaft is rotatably connected in the middle transmission sleeve and the upper transmission sleeve.

5. The hole-seeding structure as described in claim 4, characterized in that: A lower stirring sleeve is rotatably connected to the feeding plate below the intermediate blockage block, a middle stirring sleeve is rotatably connected to the feeding plate below the upper blockage block, and an upper stirring sleeve is rotatably connected to the feeding box above the feeding plate. The outer ends of the top sleeve, the intermediate transmission sleeve, and the upper transmission sleeve are all provided with transmission columns that cooperate with the corresponding spiral settling troughs. Several stirring rods are arranged on the outer periphery of the lower part of the stirring sleeve. Each stirring rod includes an upper stirring part that is fixed to the outside of the stirring sleeve and tilts downward. The end of the upper stirring part away from the stirring rod is fixed with a lower stirring part that tilts downward and extends toward the direction of the corresponding blockage block.

6. The seeding structure as described in claim 5, characterized in that: The lower blocking block, the middle blocking block, and the upper blocking block have the same structure. The lower blocking block includes a plug that fits into the discharge port, and an anti-slip part is fixed on the upper side of the plug that can fit against the upper side of the inner wall of the bottom of the feeding box.

7. The seeding structure as described in claim 5, characterized in that: The three lower mixing sections, arranged from top to bottom, rotate along the upper side of the upper side of the feeding tray, the upper side of the feeding tray, and the upper side of the inner wall of the bottom of the feeding box, respectively.

8. The seeding structure as described in claim 5, characterized in that: The bottom of the feeding tray and the unloading tray are respectively connected to a limiting sleeve. The upper end of the limiting sleeve has a limiting groove. The upper stirring sleeve, the middle stirring sleeve and the upper stirring sleeve have the same structure. Several sliding rods are arranged on the upper part of the lower stirring sleeve. A rotating ring is fixed on the outer periphery of the sliding rod. A rotating groove is opened on the lower side of the feeding tray. The rotating ring is rotatably connected to the limiting part and the feeding tray through the limiting groove and the rotating groove respectively. The inner edge of the rotating ring does not exceed the outer edge of the discharge port.

9. The seeding structure as described in claim 8, characterized in that: The feeding tray and the unloading tray have the same structure. The feeding tray includes a connecting ring that fits into the feeding box. A sliding part is fixed inside the connecting ring. The sliding part is a cone with an outer diameter that gradually decreases from top to bottom. A limiting sleeve is connected to the corresponding sliding part.

10. The seeding structure according to any one of claims 1 to 9, characterized in that: The top of the feeding box is fixedly connected to a top plate, and a material control motor is fixedly connected to the upper side of the top plate. The material control motor is connected to a transmission shaft. The top plate is fixed with a first feeding hopper that communicates with the uppermost storage chamber, a second feeding hopper that communicates with the middle storage chamber, and a third feeding hopper that communicates with the lowermost storage chamber.

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