Seeding machine capable of adjusting spacing

Abstract

The utility model relates to the related technical field of Chinese yam planting, in particular to a spacing-adjustable seeding machine which comprises a seeding machine supporting plate, a material distributing barrel is fixed to the middle of the left side of the upper surface of the seeding machine supporting plate, a seed feeding opening is formed in the middle of the upper surface of the material distributing barrel, and a motor is arranged in the middle of the rear end of the material distributing barrel. And two spiral rotating rods are symmetrically arranged in the distributing barrel front and back, rectangular grooves are formed in the front end and the rear end of the surface of the right side of the distributing barrel correspondingly, and conveying belts are arranged on the right sides of the rectangular grooves correspondingly. The improved seeding machine capable of adjusting the distance is provided with a reciprocating screw rod and a seed barrel, and the reciprocating screw rod is driven to rotate through a power structure of a motor, so that a connecting telescopic rod in threaded connection can reciprocate up and down, and the bottom end of the seed barrel connected with a bearing is driven to move downwards to be inserted into soil; chinese yam seeds can be directly sown into the deep ditches, so that the subsequent growth environment of Chinese yams is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to yam planting, in particular to a seeder with adjustable spacing. Background Art

[0002] Yams need to be planted in fertile and well-drained farmlands. Before planting yams, the farmland needs to be deeply plowed and deep trenches need to be dug to facilitate the growth of yam roots. Now the planting area of yams is getting wider and wider, so yam seeders are needed;

[0003] During sowing, the sowing structure cannot accurately adapt to the width between the deep trenches. Therefore, the seeder needs to be able to adjust the spacing between the sowing structures so that the seeder can be suitable for farmlands with deep trenches of various widths, improving the applicability of the seeder.

[0004] The existing patent (Publication No.: CN206963326U) discloses a white yam seeder, which includes a frame with traveling wheels. A seed box with an open upper end is arranged on the frame. A first chain with a seed supporting plate passes through the seed box. Through holes matching the seed supporting plate are opened at the bottom of the seed box. Two flexible elastic pieces are symmetrically arranged at the through holes. A first gear and a second gear are connected by a first chain. A third gear is coaxially arranged with the second gear. A fourth gear is coaxially arranged with the traveling wheel. The third gear and the fourth gear are connected by a second chain. A seed groove is arranged in front of the seed box. A seed discharging pipe is arranged at the bottom of the seed groove. A furrow opener is arranged in front of the bottom of the seed discharging pipe. A soil covering wheel is arranged on the frame at a position matching the seed discharging pipe. The white yam seeder provided by the utility model has a simple structure, automatic sowing, and saves time and effort. The inventor found the following problems in the prior art during the implementation of the present utility model: 1. The traditional yam seeder cannot accurately sow yam seeds into the deep trenches during sowing; 2. The traditional yam seeder can only sow in a single row during sowing, reducing the sowing efficiency of the seeder. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a seeder with adjustable spacing to solve the problems that the traditional seeder cannot accurately sow yam seeds into the deep trenches and has low sowing efficiency as mentioned in the above background art. To achieve the above purpose, the utility model provides the following technical solution: A seeder with adjustable spacing, including a seeder support plate. A material distribution barrel is fixed in the middle of the left side of the upper surface of the seeder support plate. A seed inlet is installed in a groove in the middle of the upper surface of the material distribution barrel. A motor is arranged in the middle of the rear end of the material distribution barrel. Two spiral rotating rods are symmetrically arranged in the front and back in the material distribution barrel. Rectangular grooves are opened at both the front and rear ends of the right side surface of the material distribution barrel, and conveyor belts are arranged on the right sides of the rectangular grooves;

[0006] Below the right end of the conveyor belt, there are feeding ramps provided, and rotating discs are provided on the right sides of the feeding ramps. On the outer ring of the upper surface of the rotating disc, four rectangular grooves are equidistantly arranged, and storage boxes are arranged in the rectangular grooves. On the outer ring of the upper surface of the rotating disc, fixed rings are fixed, and a water tank is fixed on the right side of the upper surface of the seeder support plate;

[0007] On the upper surface of the seeder support plate, two rectangular grooves are symmetrically arranged in the front and back on the right side of the middle part. Inside the storage box, there is a blanking plate arranged. Below the bottom ends of the rectangular grooves on the seeder support plate, adjusting boxes are provided, and seed material cylinders are fixed below the adjusting boxes through screws. In the middle of the seed material cylinders, adjusting rods are sleeved, and in the middle of the left ends of the adjusting rods, connecting telescopic rods are provided;

[0008] On the left ends of the connecting telescopic rods, reciprocating lead screws are provided, and above the reciprocating lead screws, a rotating rod group is provided. On the right side of the rotating rod group, a rotating sprocket is provided.

[0009] Further preferably, at the bottom ends of the seed inlets, two shunt pipes are hermetically connected, and the bottom ends of the shunt pipes are fixed to the middle parts of the front and back of the upper inner wall of the material distribution bucket. The left and right ends of the spiral rotating rod penetrate through bearings and are connected to the middle parts of the front and back ends of the material distribution bucket. On the middle parts of the front and back sides of the spiral rotating rod, a group of spiral conveying blades are fixed, and the diameter of the spiral conveying blades is equal to the inner diameter of the material distribution bucket. On the front and back sides of the bottom end of the inner wall of the material distribution bucket, ramps are grooved and fixed, and the bottom ends of the ramps penetrate through and are connected to the front and back sides of the right end surface of the material distribution bucket.

[0010] Further preferably, the upper left end of the conveyor belt is located below the bottom end of the ramp inside the material distribution bucket. The front, back, left, and right ends of the conveyor belt are connected to the middle parts of the fixed blocks on the upper surface of the seeder support plate through bearings. The left ends of the feeding ramps are fixed below the right end of the conveyor belt. The bottom surface of the feeding ramp is closely attached to the middle part of the outer ring surface of the fixed ring on the upper end of the rotating disc, and the outer surfaces of the storage boxes are fixed to the inner wall of the groove of the fixed ring on the upper end of the rotating disc.

[0011] Further preferably, the middle part of the storage box penetrates through and is connected to the inner wall of the rectangular groove of the rotating disc. The outer ring surface of the blanking plate is slidably connected to the bottom end inner wall of the storage box. The front and back sides of one end of the blanking plate are rotatably connected to the bottom end inner wall of the storage box. Inside the end part of the blanking plate, a torsion spring is provided. One end of the torsion spring is fixed to the front end of the blanking plate, and the other end of the torsion spring is fixed to the inner wall of the storage box.

[0012] Further preferably, the middle part of the upper end of the adjustment box is located below the rectangular groove of the seeder support plate. Both the left and right sides of the upper end of the inner wall of the adjustment box are provided with sliding grooves and are slidably connected to the bottom end of the rectangular groove of the seeder support plate. The bottom end of the seed material cylinder is slidably sleeved on the upper end of the seed material cylinder. The bottom end of the seed material cylinder is conical, and the inner ring surfaces of the front and rear ends of the seed material cylinder are both connected by bearings to the middle part of the bottom end of the seed material cylinder. The right ends of the connecting telescopic rods are both rotatably connected to the middle parts of the front and rear sides of the left end of the adjustment rod;

[0013] The left ends of the connecting telescopic rods are both rotatably connected to the front and rear sides of the right end of the ring connected by the bottom end of the reciprocating lead screw in a threaded manner. A rotating threaded sleeve is sleeved on the middle part of the adjustment rod, and the inner walls of the front and rear sides of the rotating threaded sleeve are both threadedly connected to the front and rear sides of the middle part of the adjustment rod.

[0014] Further preferably, the middle part of the front end of the motor is connected to the left middle part of the rear end of the conveyor belt through a belt and a rotating cross bar. The right middle part of the rear end of the conveyor belt is connected to the middle part of the rear end of the rotating rod group through a belt. The upper middle part of the other end of the rotating rod group is connected to the middle part of the bottom end of the rotating sprocket through a belt. The bottom end of the rotating rod group is fixed to the upper end of the reciprocating lead screw. The upper middle part of the reciprocating lead screw penetrates and is connected by a bearing to the middle part of the bottom end of the seeder support plate. The bottom middle parts of the rotating disks are all fixed with sprockets. The outer ring of the rotating sprocket is connected to the outer ring of the sprocket at the bottom end of the rotating disk through a chain.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, a reciprocating lead screw and a seed material cylinder are provided. The rotation of the reciprocating lead screw is driven by the power structure of the motor, so that the connecting telescopic rods connected by threads can move up and down reciprocally, and drive the bottom end of the seed material cylinder connected by bearings to move downward, and then insert into the soil, so that the yam seeds can be directly sown into the deep ditch to ensure the subsequent growth environment of the yam.

[0017] In the present utility model, an adjustment rod and an adjustment box are provided. By providing an adjustment box at the bottom end of the storage box fixed to the outer ring of the rotating disk, the yam seeds can slide along the storage box and the adjustment box into the interior of the seed material cylinder, and then fall into the deep ditch. The user can rotate the rotating threaded sleeve in the middle of the adjustment rod to extend the threaded rods at its front and rear ends to the front and rear sides, so that the adjustment box drives the seed material cylinder to slide along the sliding grooves inside the adjustment box to the front and rear sides, thereby achieving the purpose of adjusting the distance between the seed material cylinders to adapt to the sowing environment under deep ditches with different distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 Schematic top view structure diagram of the whole utility model;

[0020] Figure 3 Schematic enlarged structure diagram of the spiral rotating rod of the utility model;

[0021] Figure 4 Schematic front sectional structure diagram of the material storage box of the utility model;

[0022] Figure 5 Schematic enlarged structure diagram of the connecting telescopic rod of the utility model;

[0023] Figure 6 Schematic enlarged structure diagram of the rotating rod group of the utility model.

[0024] In the figure: 1, seeder support plate; 2, seed inlet; 3, material distribution barrel; 4, spiral rotating rod; 5, motor; 6, water tank; 7, conveyor belt; 8, feeding ramp; 9, rotating disk; 10, material storage box; 11, seed material cylinder; 12, adjusting rod; 13, connecting telescopic rod; 14, blanking plate; 15, reciprocating lead screw; 16, adjusting box; 17, rotating rod group; 18, rotating sprocket. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a seeder with adjustable spacing, including a seeder support plate 1, a material distribution barrel 3 is fixedly installed in the middle of the left side of the upper surface of the seeder support plate 1, and a seed inlet 2 is installed in a groove opened in the middle of the upper surface of the material distribution barrel 3. A motor 5 is arranged in the middle of the rear end of the material distribution barrel 3, and two spiral rotating rods 4 are symmetrically arranged inside the material distribution barrel 3 in the front and rear directions. Rectangular grooves are opened at both the front and rear ends of the right side surface of the material distribution barrel 3, and conveyor belts 7 are arranged on the right sides of the rectangular grooves;

[0027] Feeding ramps 8 are arranged below the right ends of the conveyor belts 7, and rotating disks 9 are arranged on the right sides of the feeding ramps 8. Four rectangular grooves are evenly arranged at equal intervals on the outer ring of the upper surface of the rotating disk 9, and material storage boxes 10 are arranged in the rectangular grooves. Fixed rings are fixed on the outer ring of the upper surface of the rotating disk 9, and a water tank 6 is fixed on the right side of the upper surface of the seeder support plate 1;

[0028] On the upper surface of the sowing machine support plate 1, two rectangular grooves are symmetrically arranged in the front and back on the right side of the middle part, and a blanking plate 14 is arranged inside the storage box 10. Below the bottom ends of the rectangular grooves of the sowing machine support plate 1, adjustment boxes 16 are arranged, and a seed material cylinder 11 is fixed below the adjustment boxes 16 by screws. An adjustment rod 12 is sleeved in the middle of the seed material cylinder 11, and a connecting telescopic rod 13 is arranged in the middle of the left end of the adjustment rod 12;

[0029] The left ends of the connecting telescopic rods 13 are respectively provided with a reciprocating lead screw 15, and a rotating rod group 17 is arranged above the reciprocating lead screw 15, and a rotating sprocket 18 is arranged on the right side of the rotating rod group 17.

[0030] In this embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, two shunt pipes are hermetically connected to the bottom ends of the seed inlets 2, and the bottom ends of the shunt pipes are respectively fixed to the front and back sides of the middle part above the inner wall of the material distribution barrel 3. The left and right ends of the spiral rotating rod 4 penetrate through bearings and are connected to the middle parts of the front and back ends of the material distribution barrel 3. A group of spiral conveying blades are respectively fixed to the middle parts of the front and back sides of the spiral rotating rod 4, and the diameter of the spiral conveying blades is equal to the inner diameter of the material distribution barrel 3. Grooves are respectively opened and fixed with ramps on the front and back sides of the bottom end of the inner wall of the material distribution barrel 3, and the bottom ends of the ramps penetrate through and are connected to the front and back sides of the right end surface of the material distribution barrel 3; By arranging two spiral rotating rods 4 inside the material distribution barrel 3, the yam seeds entering through the seed inlet 2 can be evenly conveyed to the conveyor belt 7 on the right side of the material distribution barrel 3 through the spiral conveying blades.

[0031] In this embodiment, as Figure 1 and Figure 2 shown, the upper left side of the conveyor belt 7 is located below the bottom end of the ramp inside the material distribution barrel 3, and the front, back, left, and right ends of the conveyor belt 7 are respectively connected to the middle parts of the fixing blocks on the upper surface of the sowing machine support plate 1 through bearings. The left ends of the feeding ramps 8 are respectively fixed below the right ends of the conveyor belt 7. The bottom surface of the feeding ramp 8 is closely attached to the middle part of the outer ring surface of the fixing ring on the upper end of the rotating disk 9, and the outer surfaces of the storage boxes 10 are respectively fixed to the inner wall of the groove of the fixing ring on the upper end of the rotating disk 9; Driven by the power structure of the motor 5, the conveyor belt 7 rotates, and the yam seeds on the upper end of the conveyor belt 7 are conveyed into the storage box 10 on the upper end of the rotating disk 9 and are conveyed to the next position under the rotation of the rotating disk 9.

[0032] In this embodiment, as Figure 1 and Figure 4As shown in the figure, the middle part of the storage box 10 is connected through the inner wall of the rectangular groove of the rotating disk 9, and the outer surface of the lower material plate 14 is slidably connected to the bottom end of the inner wall of the storage box 10. Moreover, both the front and rear sides of one end of the lower material plate 14 are rotatably connected to the bottom end of the inner wall of the storage box 10. A torsion spring is arranged inside the end of the lower material plate 14, and one end of the torsion spring is fixed to the front end of the lower material plate 14, and the other end of the torsion spring is fixed to the inner wall of the storage box 10. Due to the torsion spring at the end of the lower material plate 14, when the lower material plate 14 and the storage box 10 rotate through the rectangular groove on the upper surface of the seeding machine support plate 1, the lower material plate 14 is elastically pushed downward due to the elastic force, so that the yam seeds inside the storage box 10 fall into the adjustment box 16.

[0033] In this embodiment, as Figure 1 and Figure 5 shown, the middle part of the upper end of the adjustment box 16 is located below the rectangular groove of the seeding machine support plate 1. Both the left and right sides of the upper end of the inner wall of the adjustment box 16 are provided with sliding grooves and are slidably connected to the bottom end of the rectangular groove of the seeding machine support plate 1. Moreover, the bottom end of the seed material cylinder 11 is slidably sleeved on the upper end of the seed material cylinder 11. The bottom end of the seed material cylinder 11 is conical, and both the front and rear inner ring surfaces of the seed material cylinder 11 are connected by bearings to the middle part of the bottom end of the seed material cylinder 11. Moreover, the right ends of the connecting telescopic rods 13 are rotatably connected to the middle parts of the front and rear sides of the left end of the adjusting rod 12.

[0034] The left ends of the connecting telescopic rods 13 are rotatably connected to the front and rear sides of the right end of the ring threaded to the bottom end of the reciprocating lead screw 15. Moreover, a rotating threaded sleeve is sleeved on the middle part of the adjusting rod 12, and the inner walls of both the front and rear sides of the rotating threaded sleeve are threadedly connected to the front and rear sides of the middle part of the adjusting rod 12. The motor 5 drives the reciprocating lead screw 15 to rotate, and drives the connecting telescopic rods 13 to move up and down, so that the bottom end of the seed material cylinder 11 can move up and down, and the intermittently dropped yam seeds are inserted into the deep grooves.

[0035] In this embodiment, as Figure 6 shown, the middle part of the front end of the motor 5 is connected to the left middle part of the rear end of the conveyor belt 7 through a belt and a rotating cross bar. Moreover, the right middle part of the rear end of the conveyor belt 7 is connected to the middle part of the rear end of the rotating rod group 17 through a belt. Moreover, the other upper middle part of the rotating rod group 17 is connected to the middle part of the bottom end of the rotating sprocket 18 through a belt. The bottom end of the rotating rod group 17 is fixed to the upper end of the reciprocating lead screw 15. Moreover, the middle part of the upper end of the reciprocating lead screw 15 penetrates and is connected by a bearing to the middle part of the bottom end of the seeding machine support plate 1. Moreover, sprockets are fixed to the middle parts of the bottom ends of the rotating disks 9. The outer ring of the rotating sprocket 18 is connected to the outer ring of the sprocket at the bottom end of the rotating disk 9 through a chain. The motor 5 drives the conveyor belt 7 to rotate through a belt, and drives the rotating rod group 17 to rotate through a belt, so as to drive the rotating sprocket 18 to rotate through the rotating structure, so that the power can be transmitted to the rotating disk 9, and the rotating disk 9 starts to rotate.

[0036] Usage method and advantages of the present utility model: For this seeder with adjustable spacing, during use, the working process is as follows:

[0037] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, first, the user needs to fix the towing ring in the middle of the left end of the seeder support plate 1 to the rear end of the tractor. Subsequently, pour the yam seeds into the inside of the seed inlet 2 and let them fall into the inside of the material distribution bucket 3. Then, turn on the motor 5 and start the tractor to move forward along the field. The motor 5 drives the spiral rotating rod 4 to rotate through the coupling, so that the spiral conveyor sheet in the middle of the spiral rotating rod 4 conveys the yam seeds to the upper left end of the conveyor belt 7 below the right end of the material distribution bucket 3;

[0038] The motor 5 drives the conveyor belt 7 to rotate through the belt and drives the rotating rod group 17 to rotate through the belt, so that the rotating sprocket 18 is driven to rotate through the rotating structure of the rotating rod group 17 and the belt, and then the rotating disks 9 on the front and rear sides are driven to rotate through the sprocket chain;

[0039] The conveyor belt 7 carries the seeds and falls onto the inside of the storage box 10 at the upper end of the rotating disk 9 along the surface of the feeding slope 8 on the right side of the conveyor belt 7. When the storage box 10 leaves the bottom end of the feeding slope 8, the bottom end of the feeding slope 8 will be blocked by the fixed ring at the upper end of the rotating disk 9 to prevent the yam seeds from falling above the rotating disk 9 until the next storage box 10 turns around. When the storage box 10 rotates above the rectangular groove of the right seeder support plate 1, the feeding plate 14 rotates downward under the elastic action of the torsion spring, and the yam seeds fall into the inside of the adjusting box 16 along the rectangular groove and fall into the field along the bottom end of the seed material tube 11. At the same time, since the rotation of the rotating rod group 17 drives the reciprocating screw rod 15 at the bottom end of the rotating rod group 17 to rotate, the connecting telescopic rod 13 can move up and down along the outer surface of the reciprocating screw rod 15, so that the connecting telescopic rod 13 drives the bottom end of the seed material tube 11 to move up and down, and then inserts the bottom end of the seed material tube 11 into the deep groove, so that the seeds can fall into the deep groove;

[0040] When the user needs to adjust the spacing between the seed material tubes 11, the rotating thread sleeve in the middle of the adjusting rod 12 can be rotated, so that the adjusting rods 12 thread - connected at the front and rear ends move to the front and rear sides, and then the seed material tubes 11 and the adjusting box 16 slide to the front and rear sides along the sliding grooves on the inner wall of the adjusting box 16, thus completing the purpose of adjusting the spacing between the seed material tubes 11. At the same time, water can be added to the water tank 6, and it flows out through the nozzle at the right end of the water tank 6 and drips onto the field.

[0041] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A seeder with adjustable spacing, comprising a seeder support plate (1), characterized in that: A material distribution barrel (3) is fixed in the middle of the left side of the upper surface of the seed drill support plate (1), and a seed feeding port (2) is installed in the middle of the upper surface of the material distribution barrel (3), a motor (5) is arranged in the middle of the rear end of the material distribution barrel (3), and two spiral rotating rods (4) are symmetrically arranged in the front and rear of the material distribution barrel (3), and rectangular grooves are arranged at both ends of the right side surface of the material distribution barrel (3), and a conveyor belt (7) is arranged on the right side of the rectangular groove; A feeding slope (8) is provided below the right end of the conveyor belt (7), and a rotating disk (9) is provided on the right side of the feeding slope (8); four rectangular grooves are provided at equal intervals on the outer ring of the upper surface of the rotating disk (9), and a material storage box (10) is provided in each of the rectangular grooves; a fixing ring is fixed to the outer ring of the upper surface of the rotating disk (9), and a water tank (6) is fixed to the right side of the upper surface of the seed drill support plate (1); Two rectangular grooves are symmetrically arranged on the right side of the middle of the upper surface of the seed drill support plate (1), and a material discharge plate (14) is arranged inside the material storage box (10). An adjustment box (16) is arranged below the bottom end of the rectangular groove of the seed drill support plate (1), and a seed barrel (11) is fixed below the adjustment box (16) by screws. An adjustment rod (12) is sleeved in the middle of the seed barrel (11), and a connecting telescopic rod (13) is arranged in the middle of the left end of the adjustment rod (12); The left end of the connecting telescopic rod (13) is provided with a reciprocating screw rod (15), and a rotating rod group (17) is provided above the reciprocating screw rod (15), and a rotating sprocket (18) is provided on the right side of the rotating rod group (17).

2. The adjustable-spacing seeder according to claim 1, characterized in that: The bottom end of the seed feed port (2) is sealedly connected to two diversion pipes, and the bottom ends of the diversion pipes are fixed to the front and rear sides of the middle of the upper inner wall of the distribution barrel (3), and the left and right ends of the spiral rotating rod (4) are connected to the middle of the front and rear ends of the distribution barrel (3) through bearings, and a group of spiral conveying plates are fixed to the middle of the front and rear sides of the spiral rotating rod (4), and the diameter of the spiral conveying plates is equal to the diameter of the inner wall of the distribution barrel (3), and the front and rear sides of the bottom end of the inner wall of the distribution barrel (3) are grooved and fixed with ramps, and the bottom ends of the ramps are connected to the front and rear sides of the right end surface of the distribution barrel (3).

3. The adjustable-spacing seeder according to claim 1, wherein: The upper left end of the conveyor belt (7) is located below the bottom end of the internal ramp of the material distribution barrel (3), and the front and rear sides and the left and right ends of the conveyor belt (7) are bearing-connected to the middle of the fixed block on the upper surface of the planter support plate (1), and the left end of the feeding ramp (8) is fixed below the right end of the conveyor belt (7), the bottom end surface of the feeding ramp (8) is tightly attached to the middle of the outer ring surface of the upper end fixed ring of the rotating disk (9), and the outer surface of the storage box (10) is fixed to the inner wall of the groove of the upper end fixed ring of the rotating disk (9).

4. The adjustable-spacing seeder according to claim 1, wherein: The middle part of the storage box (10) is connected through the inner wall of the rectangular groove of the rotating disk (9), and the outer surface of the lower material plate (14) is slidably connected to the bottom end of the inner wall of the storage box (10). Moreover, both the front and rear sides of one end of the lower material plate (14) are rotatably connected to the bottom end of the inner wall of the storage box (10). A torsion spring is arranged inside the end part of the lower material plate (14), one end of the torsion spring is fixed to the front end of the lower material plate (14), and the other end of the torsion spring is fixed to the inner wall of the storage box (10).

5. The adjustable-spacing seeder according to claim 1, wherein: The middle part of the upper end of the adjustment box (16) is located below the rectangular groove of the seeder support plate (1). Moreover, sliding grooves are respectively arranged on the left and right sides of the upper end of the inner wall of the adjustment box (16) and are slidably connected to the bottom end of the rectangular groove of the seeder support plate (1). The bottom end of the seed material cylinder (11) is slidably sleeved on the upper end of the seed material cylinder (11). The bottom end of the seed material cylinder (11) is conical. The inner ring surfaces of the front and rear ends of the seed material cylinder (11) are respectively connected by bearings to the middle part of the bottom end of the seed material cylinder (11). The right ends of the connecting telescopic rods (13) are respectively rotatably connected to the middle parts of the front and rear sides of the left end of the adjustment rod (12). The left ends of the connecting telescopic rods (13) are respectively rotatably connected to the front and rear sides of the right end of the ring connected by the screw thread at the bottom end of the reciprocating screw rod (15). A rotating thread sleeve is sleeved on the middle part of the adjustment rod (12). The inner wall surfaces of the front and rear sides of the rotating thread sleeve are respectively threadedly connected to the front and rear sides of the middle part of the adjustment rod (12).

6. The adjustable-spacing seeder according to claim 1, characterized in that: The middle part of the front end of the motor (5) is connected to the left middle part of the rear end of the conveyor belt (7) through a belt and a rotating cross bar. The right middle part of the rear end of the conveyor belt (7) is connected to the middle part of the rear end of the rotating rod group (17) through a belt. The upper middle part of the other end of the rotating rod group (17) is connected to the middle part of the bottom end of the rotating sprocket (18) through a belt. The bottom end of the rotating rod group (17) is fixed to the upper end of the reciprocating screw rod (15). The upper middle part of the reciprocating screw rod (15) penetrates through and is connected by a bearing to the middle part of the bottom end of the seeder support plate (1). Sprockets are respectively fixed to the middle parts of the bottom ends of the rotating disks (9). The outer ring of the rotating sprocket (18) is connected to the outer ring of the sprocket at the bottom end of the rotating disk (9) through a chain.

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