Quantitative seeder

Abstract

The utility model provides a quantitative seeder which comprises a containing body, a discharging port is formed in the containing body, a discharging inserting section is arranged below the discharging port, the discharging inserting section comprises a plurality of vertical splicing units, a horizontal splicing unit is arranged at the bottom end of each vertical splicing unit, and the discharging inserting section has an inserting form and a seeding form; the lower portion of the discharging inserting section is inserted into soil, a discharging channel is defined by the vertical splicing units, and the horizontal splicing units are spliced to form a lower plugging structure used for plugging a lower opening of the discharging channel. In the sowing state, the first switch part enables an upper opening of the discharging channel formed through enclosing to be communicated with the discharging port, the two vertical splicing units can stir soil to form a seed groove and form a cracking seam when being relatively away from each other, the two horizontal splicing units form a cracking opening when being relatively away from each other, and quantitative seeds enter the seed groove through the cracking seam and the cracking opening. The device has the advantages of capability of quantitatively seeding while slotting, and high seeding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to a quantitative seeder. Background Art

[0002] In the prior art, in order to ensure that the amount of seeds in each hole is the same during breeding, a seeder is used for sowing.

[0003] For example, the patent document with announcement number CN209472999U discloses a handheld sandy soil management seeder, which relates to the technical field of seeders. The main structure includes a main body, a pressure rod and an elastic part. The part above the partition is used to hold seeds and fertilizers. Under the guidance of the partition, the seeds and fertilizers enter the seed and fertilizer trough.

[0004] For another example, the patent document with announcement number CN205611211U discloses a tobacco naked seed seeder, in which the front end of the cylinder is in an arc cone shape and is provided with a circular hole with a diameter of 1.6 mm-1.7 mm, a push needle is arranged in the cylinder and the front end of the push needle is inserted into the circular hole, a seed loading hole with a diameter of 0.9 mm-1.1 mm is provided on the push needle at a distance of 0.6 cm-0.8 cm from the front end, the rear end of the cylinder is provided with a cover plate, the rear end of the push needle passes through the cover plate and is provided with a pressing plate, a spring is installed between the cover plate and the pressing plate, and a limiter is installed on the push needle on the other side of the cover plate.

[0005] However, if the seeder is inserted into the soil, the outlet will be blocked and sowing will not be possible, so it is impossible to sow while grooving.

[0006] Therefore, a quantitative seeder is proposed to solve the above technical problems. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a quantitative seeder, which has the advantages of being able to sow seeds while grooving and having high sowing efficiency.

[0008] In order to solve the above technical problems, the utility model provides a quantitative seeder, including a containing body, which has a containing space capable of arranging a predetermined amount of seeds, the containing body is provided with a discharge port connected to the containing space and used for the quantitative seeds to fall downward, a discharge plug-in section arranged in a vertical direction and having a length is arranged below the discharge port, the discharge plug-in section includes a plurality of vertical splicing units extending in a vertical direction, the plurality of vertical splicing units can move in a direction relatively close to or relatively far away from each other, when relatively close to each other, the plurality of vertical splicing units can enclose to form a discharge channel, and when relatively far away from each other, at least one crack forms a discharge channel. Between two relatively far vertical splicing units, a horizontal splicing unit is arranged at the bottom end of each vertical splicing unit, and the plurality of horizontal splicing units can move in a direction relatively close to or relatively far away from each other. When relatively close, the plurality of horizontal splicing units can be spliced ​​to form a lower blocking structure for blocking the lower opening of the feeding channel. When relatively far away, at least one crack opening is formed between two relatively far horizontal splicing units. The upper opening of the feeding channel formed by the enclosed connection corresponds to the discharge port and a first switch portion is arranged between the two to connect or disconnect the two. The feeding plug-in section has a plug-in form and a sowing form:

[0009] In the plug-in configuration, the lower portion of the feed plug-in section is inserted into the soil, the plurality of vertical splicing units are enclosed to form a feed channel, and the plurality of horizontal splicing units are spliced ​​to form a lower blocking structure for blocking the lower opening of the feed channel, thereby preventing soil from entering the feed channel;

[0010] In the sowing form, the first switch part makes the upper opening of the enclosed feeding channel connected with the discharge port, and the two vertical splicing units can move the soil to form a seed groove and form the crack when they are relatively far away, and the two horizontal splicing units form the crack opening when they are relatively far away, and the quantitative seeds enter the seed groove through the crack and the crack opening.

[0011] Preferably, the containing body is a quantitative tube arranged in the vertical direction, the blanking plug-in section has two vertical splicing units, both of which are splicing tubes with a semicircular cross-section, one is a fixed splicing tube, and the other is a hinged splicing tube, the inner diameters of the upper openings of the fixed splicing tube and the hinged splicing tube are the same as the inner diameter of the quantitative tube, the upper end face of the fixed splicing tube is fixedly connected to the half position of the lower end face of the quantitative tube, the outer periphery of the upper end face of the hinged splicing tube is hingedly rotatably connected to the other half position of the lower end face of the quantitative tube, the fixed splicing tube and the hinged splicing tube are connected to the fixed splicing tube and the hinged splicing tube. A horizontal semicircular plate is fixedly set at the lower opening of the tube to form two horizontal splicing units, and also includes a circular baffle, the area of ​​the circular baffle matches the area of ​​the upper opening of the discharge channel formed when the fixed splicing tube and the hinged splicing tube are spliced ​​together, the circular baffle is fixedly connected to the upper end surface of the hinged splicing tube, and also includes a driving part that can drive the hinged splicing tube to rotate, the driving part drives the hinged splicing tube to rotate and then drives the circular baffle to move, so that the switching action of the first switch part can make the upper opening of the discharge channel formed by the enclosed connection and the discharge port connected or not connected.

[0012] Preferably, it also includes a feeding part with a chamber inside for installing seeds, the feeding part has a discharge port connected to the chamber and used for seeds to fall downward, and the discharge port is connected or disconnected with the quantitative tube located below the discharge port through a second switch part.

[0013] Preferably, the feeding part comprises:

[0014] A cylindrical shell with a horizontal axial direction and a flat shape, a first through hole connected to the internal space is provided at the bottom, and a window connected to the internal space is provided at the upper position of the first side surface of the cylindrical shell;

[0015] A cylindrical inner shell with a horizontal axial direction and a flat shape, a second through hole connected to its internal space is provided at the bottom of the cylindrical inner shell, the cylindrical inner shell is rotatably arranged in the cylindrical outer shell, and a feeding hole is provided at a position of a side surface of the cylindrical inner shell corresponding to the window;

[0016] A gear is rotatably mounted on the second side surface of the cylindrical outer shell relative to the first side surface thereof, the axis direction of the gear is parallel to the axial direction of the cylindrical outer shell, the gear is fixed to the center of the cylindrical inner shell, a rack arranged in the vertical direction is slidably mounted on the second side surface of the cylindrical outer shell, and the rack is meshed with the gear;

[0017] A sliding rod, which is arranged in a vertical direction and slidably mounted on the second side surface of the cylindrical housing, and the sliding rod is located above the rack and fixedly connected to the rack;

[0018] The cylindrical inner shell forms the feeding part, the second through hole forms the discharge port, the sliding rod, the rack, the gear, the cylindrical outer shell and the first through hole thereon form the second switch part, the sliding rod can drive the rack to move up and down, and then drive the cylindrical inner shell to rotate relative to the cylindrical outer shell through the gear, the second switch part is in an open state when the first through hole coincides with the second through hole, and the second switch part is in a closed state when the first through hole is completely offset from the second through hole.

[0019] Preferably, the direction from the first side surface to the second side surface is the left and right direction, the fixed splicing tube is located on the left side, and the hinged splicing tube is located on the right side, and also includes a vertical connecting rod, which is located below the rack and the two are fixedly connected, and a hinge rod is rotatably installed on the front and rear sides of the bottom end of the vertical connecting rod, and the free ends of the two hinged rods extend to the left side of the hinged splicing tube in the direction toward the lower left, the fixed splicing tube and the hinged splicing tube are located between the two hinged rods, and a horizontal connecting block is fixed on the upper outer side surface of the hinged splicing tube, and the front and rear sides of the horizontal connecting block are rotatably connected to the free end of one of the hinged rods in a one-to-one manner, and the rack, the vertical connecting rod, the two hinged rods and the horizontal connecting block form the driving part.

[0020] Preferably, a spring is further included, which is sleeved on the outer peripheral side of the sliding rod, the upper end of the spring is fixedly connected to the second side surface of the cylindrical shell, and the lower end is fixedly connected to the upper end of the rack.

[0021] Preferably, it also includes a protective shell, which is fixedly mounted on the second side of the cylindrical shell, the gear and the rack are located in the protective shell, and the sliding rod and the vertical connecting rod pass through the protective shell in the vertical direction and are slidably connected to the protective shell.

[0022] Preferably, a handle arranged in the front-to-back direction is provided above the top of the cylindrical shell, and the middle position of the handle is connected to the top of the cylindrical shell by a fixed rod, and the height of the sliding rod is slightly higher than the height of the handle when the sliding rod is not pressed.

[0023] Preferably, the fixed splicing tube and the hinged splicing tube are both configured such that the inner diameter gradually decreases from top to bottom, so that the blanking plug-in section formed by them presents an inverted cone-shaped tube body.

[0024] The seeder provided by the utility model has the following beneficial effects:

[0025] The setting of the feeding plug-in section can prevent soil from entering the feeding channel during plugging, and can form a seed groove and quantitatively drop seeds during sowing. It can effectively prevent blockage, thereby achieving synchronous grooving and quantitative sowing, and improving sowing efficiency.

[0026] Preferably, the arrangement of the fixed splicing tube, the hinged splicing tube and the circular baffle can form a blanking plug-in section while also providing related arrangements that can serve as a first switch portion, which can greatly simplify the structure.

[0027] Preferably, during sowing, the feeding plug-in section formed by the fixed spliced ​​tube and the articulated spliced ​​tube that are spliced ​​with each other is inserted into the soil to a certain depth, at which time the circular baffle blocks the lower opening of the quantitative tube, and at which time the first through hole and the second through hole are connected, and the quantitative seeds enter the quantitative tube, and then the sliding rod is pressed, and the cylindrical inner shell is rotated through the gear rack bonding, so that the first through hole and the second through hole are staggered, and the seeds stop entering the quantitative tube; at the same time, the articulated spliced ​​tube is driven to rotate through the vertical connecting rod and the articulated rod, so that it moves the soil to form a seed groove, and at the same time, the articulated spliced ​​tube drives the circular baffle to tilt, so that a gap is generated between the circular baffle and the fixed spliced ​​tube, and the seeds fall into the seed groove through the gap, and then the seeder can be removed to achieve sowing; thereafter, the articulated spliced ​​tube and the cylindrical inner shell are reset in turn, and the above operations are repeated to achieve continuous sowing.

[0028] When the sliding rod is pressed, the first through hole and the second through hole are gradually offset, and the gap between the circular baffle and the fixed splicing tube gradually increases. By setting the size of the circular baffle, when the first through hole and the second through hole cannot pass the seeds, the gap between the circular baffle and the fixed splicing tube can allow the seeds to pass.

[0029] Preferably, under the elastic force of the spring, the sliding rod, the gear and the rack are reset, thereby driving the cylindrical inner shell to reset, without the need for manual reset again.

[0030] Preferably, a protective shell is provided, which can protect and cover the gear and rack to ensure aesthetics, and can support the sliding rod and the vertical connecting rod to make the sliding of the two more stable.

[0031] Preferably, when in use, two fingers are hooked on the handle and the thumb is used to press the sliding rod, so that the rack can be controlled to slide, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0033] Figure 2 It is a schematic diagram of the structure of the hinged splicing pipe after rotation in the utility model;

[0034] Figure 3 for Figure 1 Exploded view shown;

[0035] Figure 4 It is a cross-sectional structural schematic diagram of the utility model.

[0036] Figure 1-4 The accompanying drawings are denoted as follows:

[0037] 1 feeding channel, 2 split seam, 3 split opening, 4 quantitative tube, 5 discharge port, 6 fixed splicing tube, 7 hinged splicing tube, 8 circular baffle, 9 cylindrical outer shell, 10 first through hole, 11 window, 12 cylindrical inner shell, 13 second through hole, 14 feeding hole, 15 gear, 16 rack, 17 sliding rod, 18 vertical connecting rod, 19 hinged rod, 20 horizontal connecting block, 21 spring, 22 protective shell, 23 handle, 24 fixed rod. DETAILED DESCRIPTION

[0038] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0039] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] Please refer to Figure 1-4The utility model provides a quantitative seeder, including a containing body, which has a containing space capable of arranging a predetermined amount of seeds, the containing body is provided with a discharge port 5 connected to the containing space and used for the quantitative seeds to fall downward, a discharge plug section arranged in a vertical direction and having a length is arranged below the discharge port 5, the discharge plug section includes a plurality of vertical splicing units extending in a vertical direction, the plurality of vertical splicing units can move in a direction relatively close to or relatively far away from each other, when relatively close to each other, the plurality of vertical splicing units can enclose to form a discharge channel 1, and when relatively far away, at least one split seam 2 is formed at a relatively far distance. Between two vertical splicing units that are relatively far away from each other, a horizontal splicing unit is arranged at the bottom end of each vertical splicing unit, and the plurality of horizontal splicing units can move in a direction that is relatively close to or relatively far away from each other. When relatively close to each other, the plurality of horizontal splicing units can be spliced ​​to form a lower blocking structure for blocking the lower opening of the feeding channel. When relatively far away, at least one crack opening 3 is formed between two horizontal splicing units that are relatively far away. The upper opening of the feeding channel 1 formed by the enclosed connection corresponds to the discharge port 5 and a first switch portion is arranged between the two to connect or disconnect the two. The feeding plug-in section has a plug-in form and a sowing form:

[0043] In the plug-in configuration, the lower part of the feed plug-in section is inserted into the soil, the plurality of vertical splicing units enclose a feed channel 1, and the plurality of horizontal splicing units are spliced ​​to form a lower blocking structure for blocking the lower opening of the feed channel, thereby preventing soil from entering the feed channel;

[0044] In the sowing form, the first switch part makes the upper opening of the enclosed feeding channel 1 connected with the discharge port 5, and the two vertical splicing units can move the soil to form a seed groove and form the crack 2 when they are relatively far away, and the two horizontal splicing units form the crack opening 3 when they are relatively far away, and the quantitative seeds enter the seed groove through the crack 2 and the crack opening 3.

[0045] The setting of the feeding plug section can prevent soil from entering the feeding channel 1 during plugging, and can form a seed groove and quantitatively drop seeds during sowing, which can effectively prevent blockage, thereby achieving synchronous grooving and quantitative sowing, and improving sowing efficiency.

[0046] In a specific embodiment, the containing body is a quantitative tube 4 arranged in the vertical direction, and the blanking plug-in section has two vertical splicing units, both of which are splicing tubes with a semicircular cross-section, one is a fixed splicing tube 6, and the other is a hinged splicing tube 7. The inner diameters of the upper openings of the fixed splicing tube 6 and the hinged splicing tube 7 are the same as the inner diameter of the quantitative tube 4. The upper end face of the fixed splicing tube 6 is fixedly connected to the half position of the lower end face of the quantitative tube 4, and the outer periphery of the upper end face of the hinged splicing tube 7 is hingedly rotatably connected to the other half position of the lower end face of the quantitative tube 4. The fixed splicing tube 6 and the hinged splicing tube 7 are connected to the fixed splicing tube 6 and the hinged splicing tube 7. A horizontal semicircular plate is fixedly set at the lower opening of the splicing tube 7 to form two horizontal splicing units, and also includes a circular baffle 8. The area of ​​the circular baffle 8 matches the area of ​​the upper opening of the unloading channel 1 formed when the fixed splicing tube 6 and the hinged splicing tube 7 are spliced ​​together. The circular baffle 8 is fixedly connected to the upper end surface of the hinged splicing tube 7, and also includes a driving part that can drive the hinged splicing tube 7 to rotate. The driving part drives the hinged splicing tube 7 to rotate and then drives the circular baffle 8 to move, so that the switching action of the first switch part can make the upper opening of the unloading channel 1 and the discharge port 5 formed by the enclosed connection or disconnection.

[0047] The arrangement of the fixed splicing tube 6, the hinged splicing tube 7 and the circular baffle 8 can form a blanking plug-in section while also providing related arrangements that can serve as a first switch portion, which can greatly simplify the structure.

[0048] It also includes a feeding part with a chamber inside for installing seeds. The feeding part has a discharge port connected to the chamber and used for seeds to fall downward. The discharge port is connected or disconnected with the quantitative tube 4 located below the discharge port through a second switch part.

[0049] Specifically, the feeding part includes:

[0050] A cylindrical shell 9 with a horizontal axial direction and a flat shape, a first through hole 10 connected to the inner space of the cylindrical shell 9 is provided at the bottom thereof, and a window 11 connected to the inner space of the cylindrical shell 9 is provided at an upper position of a first side surface thereof;

[0051] A cylindrical inner shell 12 with a horizontal axial direction and a flat shape, a second through hole 13 connected to its internal space is provided at the bottom of the cylindrical inner shell 12, the cylindrical inner shell 12 is rotatably disposed in the cylindrical outer shell 9, and a feeding hole 14 is provided at a position of one side of the cylindrical inner shell 12 corresponding to the window 11;

[0052] A gear 15 is rotatably mounted on the second side surface of the cylindrical outer shell 9 relative to the first side surface thereof, the axis direction of the gear 15 is parallel to the axial direction of the cylindrical outer shell 9, the gear 15 is fixed to the center of the cylindrical inner shell 12, and a rack 16 arranged in the vertical direction is slidably mounted on the second side surface of the cylindrical outer shell 9, and the rack 16 is meshed with the gear 15;

[0053] A sliding rod 17, which is arranged in the vertical direction and slidably mounted on the second side surface of the cylindrical housing 9, and the sliding rod 17 is located above the rack 16 and fixedly connected to the rack 16;

[0054] The cylindrical inner shell 12 forms the feeding part, the second through hole 13 forms the discharge port, the sliding rod 17, the rack 16, the gear 15, the cylindrical outer shell 9 and the first through hole 10 thereon form the second switch part, the sliding rod 17 can move up and down to drive the rack 16 to move up and down, and then drive the cylindrical inner shell 12 to rotate relative to the cylindrical outer shell 9 through the gear 15, when the first through hole 10 coincides with the second through hole 13, the second switch part is in an open state, and when the first through hole 10 and the second through hole 13 are completely offset, the second switch part is in a closed state.

[0055] In this specific embodiment, the direction from the first side surface to the second side surface is the left-right direction, the fixed splicing tube 6 is located on the left side, and the hinged splicing tube 7 is located on the right side. It also includes a vertical connecting rod 18, which is located below the rack 16 and the two are fixedly connected. A hinged rod 19 is rotatably installed on both the front and rear sides of the bottom end of the vertical connecting rod 18, and the free ends of the two hinged rods 19 extend toward the lower left direction to the left side of the hinged splicing tube 7. The fixed splicing tube 6 and the hinged splicing tube 7 are located between the two hinged rods 19, and a horizontal connecting block 20 is fixed to the upper outer side surface of the hinged splicing tube 7. The front and rear sides of the horizontal connecting block 20 are rotatably connected to the free end of one of the hinged rods 19 in a one-to-one manner. The rack 16, the vertical connecting rod 18, the two hinged rods 19 and the horizontal connecting block 20 form the driving part.

[0056] During sowing, the feeding plug-in section formed by the fixed splicing tube 6 and the articulated splicing tube 7 spliced ​​together is inserted into the soil to a certain depth. At this time, the circular baffle 8 blocks the lower opening of the quantitative tube 4, and the first through hole 10 and the second through hole 13 are connected at this time, and the quantitative seeds enter the quantitative tube 4, and then the sliding rod 17 is pressed, and the cylindrical inner shell 12 is rotated through the gear 15 and the rack 16, so that the first through hole 10 and the second through hole 13 are staggered, and the seeds stop entering the quantitative tube 4; at the same time, the articulated splicing tube 7 is driven to rotate through the vertical connecting rod 18 and the articulated rod 19, so that it moves the soil to form a seed groove, and at the same time, the articulated splicing tube 7 drives the circular baffle 8 to tilt, so that a gap is generated between the circular baffle 8 and the fixed splicing tube 6, and the seeds fall into the seed groove through the gap, and then the seeder can be taken away to achieve sowing; thereafter, the articulated splicing tube 7 and the cylindrical inner shell 12 are reset in turn, and the above operation is repeated to continuously sow.

[0057] When the sliding rod 17 is pressed, the first through hole 10 and the second through hole 13 are gradually offset, and the gap between the circular baffle 8 and the fixed splicing tube 6 gradually increases. By setting the size of the circular baffle 8, when the first through hole 10 and the second through hole 13 cannot pass seeds, the gap between the circular baffle 8 and the fixed splicing tube 6 can allow seeds to pass through.

[0058] like Figure 1-4 As shown, in a specific embodiment, it also includes a spring 21, which is sleeved on the outer peripheral side of the sliding rod 17, and the upper end of the spring 21 is fixedly connected to the second side surface of the cylindrical shell 9, and the lower end is fixedly connected to the upper end of the rack 16.

[0059] Under the elastic force of the spring 21, the sliding rod 17, the gear 15, and the rack 16 are reset, thereby driving the cylindrical inner shell 12 to reset, without the need for manual reset again.

[0060] like Figure 1-4 As shown, it also includes a protective shell 22, which is fixedly mounted on the second side of the cylindrical shell 9. The gear 15 and the rack 16 are located in the protective shell 22. The sliding rod 17 and the vertical connecting rod 18 pass through the protective shell 22 in the vertical direction and are slidably connected to the protective shell 22.

[0061] The protective shell 22 can protect and cover the gear 15 and the rack 16 to ensure the appearance, and can support the sliding rod 17 and the vertical connecting rod 18 to make the sliding of the two more stable.

[0062] In a specific embodiment, a handle 23 arranged along the front-to-back direction is provided above the top of the cylindrical shell 9, and the middle position of the handle 23 is connected to the top of the cylindrical shell 9 through a fixing rod 24, and the height of the sliding rod 17 is slightly higher than the height of the handle 23 when the sliding rod 17 is not pressed.

[0063] When in use, two fingers are hooked on the handle 23, and the thumb is used to press the sliding rod 17, so that the rack 16 can be controlled to slide, which is convenient for use.

[0064] like Figure 1 As shown, the fixed splicing pipe 6 and the hinged splicing pipe 7 are both set with inner diameters gradually decreasing from top to bottom, so that the material insertion section formed by them presents an inverted cone-shaped pipe body, which is convenient for insertion into the ground.

[0065] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A quantitative seeder, characterized in that: The invention comprises a containing body, which has a containing space capable of arranging a predetermined amount of seeds, the containing body is provided with a discharge port connected to the containing space and used for the predetermined amount of seeds to fall downward, a discharge plug section arranged in a vertical direction and having a length is arranged below the discharge port, the discharge plug section comprises a plurality of vertical splicing units extending in a vertical direction, the plurality of vertical splicing units can move in a direction relatively close to or relatively far away from each other, when relatively close to each other, the plurality of vertical splicing units can enclose to form a discharge channel, when relatively far away from each other, at least one split seam is formed between two relatively far away vertical splicing units, The plurality of horizontal splicing units are arranged between the plurality of vertical splicing units, and a horizontal splicing unit is arranged at the bottom end of each vertical splicing unit. The plurality of horizontal splicing units can move in a direction relatively close to or relatively far away from each other. When relatively close to each other, the plurality of horizontal splicing units can be spliced ​​to form a lower blocking structure for blocking the lower opening of the feeding channel. When relatively far away, at least one crack opening is formed between two relatively far away horizontal splicing units. The upper opening of the feeding channel formed by the enclosed connection corresponds to the discharge port and a first switch portion is arranged between the two to connect or disconnect the two. The feeding plug-in section has a plug-in form and a sowing form: In the plug-in configuration, the lower portion of the feed plug-in section is inserted into the soil, the plurality of vertical splicing units are enclosed to form a feed channel, and the plurality of horizontal splicing units are spliced ​​to form a lower blocking structure for blocking the lower opening of the feed channel, thereby preventing soil from entering the feed channel; In the sowing form, the first switch part makes the upper opening of the enclosed feeding channel connected with the discharge port, and the two vertical splicing units can move the soil to form a seed groove and form the crack when they are relatively far away, and the two horizontal splicing units form the crack opening when they are relatively far away, and the quantitative seeds enter the seed groove through the crack and the crack opening.

2. The quantitative seeder according to claim 1, characterized in that: The containing body is a quantitative tube arranged in the vertical direction. The blanking plug-in section has two vertical splicing units, both of which are splicing tubes with semicircular cross-sections, one of which is a fixed splicing tube and the other is a hinged splicing tube. The inner diameters of the upper openings of the fixed splicing tube and the hinged splicing tube are the same as the inner diameter of the quantitative tube. The upper end face of the fixed splicing tube is fixedly connected to the half position of the lower end face of the quantitative tube, and the outer periphery of the upper end face of the hinged splicing tube is hingedly rotatably connected to the other half position of the lower end face of the quantitative tube. A horizontal semicircular plate is fixedly set at the lower opening to form two horizontal splicing units, and also includes a circular baffle, the area of ​​the circular baffle matches the area of ​​the upper opening of the discharge channel formed when the fixed splicing tube and the hinged splicing tube are spliced ​​together, the circular baffle is fixedly connected to the upper end surface of the hinged splicing tube, and also includes a driving part that can drive the hinged splicing tube to rotate, the driving part drives the hinged splicing tube to rotate and then drives the circular baffle to move, so that the switching action of the first switch part can make the upper opening of the discharge channel formed by the enclosed connection and the discharge port connected or not connected.

3. The quantitative seeder according to claim 2, characterized in that: It also includes a feeding part with a chamber inside for installing seeds. The feeding part has a discharge port connected to the chamber and used for seeds to fall downward. The discharge port is connected or disconnected with the quantitative tube located below the discharge port through a second switch part.

4. The quantitative seeder according to claim 3, characterized in that: The feeding part comprises: A cylindrical shell with a horizontal axial direction and a flat shape, a first through hole connected to the internal space is provided at the bottom, and a window connected to the internal space is provided at the upper position of the first side surface of the cylindrical shell; A cylindrical inner shell with a horizontal axial direction and a flat shape, a second through hole connected to its internal space is provided at the bottom of the cylindrical inner shell, the cylindrical inner shell is rotatably arranged in the cylindrical outer shell, and a feeding hole is provided at a position of a side surface of the cylindrical inner shell corresponding to the window; A gear is rotatably mounted on the second side surface of the cylindrical outer shell relative to the first side surface thereof, the axis direction of the gear is parallel to the axial direction of the cylindrical outer shell, the gear is fixed to the center of the cylindrical inner shell, a rack arranged in the vertical direction is slidably mounted on the second side surface of the cylindrical outer shell, and the rack is meshed with the gear; A sliding rod, which is arranged in a vertical direction and slidably mounted on the second side surface of the cylindrical housing, and the sliding rod is located above the rack and fixedly connected to the rack; The cylindrical inner shell forms the feeding part, the second through hole forms the discharge port, the sliding rod, the rack, the gear, the cylindrical outer shell and the first through hole thereon form the second switch part, the sliding rod can drive the rack to move up and down, and then drive the cylindrical inner shell to rotate relative to the cylindrical outer shell through the gear, the second switch part is in an open state when the first through hole coincides with the second through hole, and the second switch part is in a closed state when the first through hole is completely offset from the second through hole.

5. The quantitative seeder according to claim 4, characterized in that: The direction from the first side surface to the second side surface is the left and right direction, the fixed splicing tube is located on the left side, and the hinged splicing tube is located on the right side, and also includes a vertical connecting rod, which is located below the rack and the two are fixedly connected, and a hinge rod is rotatably installed on the front and rear sides of the bottom end of the vertical connecting rod, and the free ends of the two hinged rods extend to the left side of the hinged splicing tube in the direction toward the lower left, the fixed splicing tube and the hinged splicing tube are located between the two hinged rods, and a horizontal connecting block is fixed on the upper outer side surface of the hinged splicing tube, and the front and rear sides of the horizontal connecting block are rotatably connected to the free end of one of the hinged rods in a one-to-one manner, and the rack, the vertical connecting rod, the two hinged rods and the horizontal connecting block form the driving part.

6. The quantitative seeder according to claim 5, characterized in that: It also includes a spring, which is sleeved on the outer peripheral side of the sliding rod, the upper end of the spring is fixedly connected to the second side surface of the cylindrical shell, and the lower end is fixedly connected to the upper end of the rack.

7. The quantitative seeder according to claim 6, characterized in that: It also includes a protective shell, which is fixedly installed on the second side of the cylindrical shell. The gear and the rack are located in the protective shell. The sliding rod and the vertical connecting rod pass through the protective shell in the vertical direction and are slidably connected to the protective shell.

8. The quantitative seeder according to claim 7, characterized in that: A handle arranged in the front-to-back direction is provided above the top of the cylindrical shell, and the middle position of the handle is connected to the top of the cylindrical shell through a fixing rod. When the sliding rod is not pressed, the height of the sliding rod is slightly higher than the height of the handle.

9. The quantitative seeder according to claim 2, characterized in that: The fixed splicing tube and the hinged splicing tube are both arranged such that the inner diameter gradually decreases from top to bottom, so that the blanking plug-in section formed by them presents an inverted cone-shaped tube body.

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