Seed melon dibbler

Abstract

The utility model discloses a seed melon dibbler which comprises a dibbler shaft (14) and a seed metering box (18), a shell (16), a seed taking plate and a seed metering cam (9) are sleeved on the dibbler shaft (14), the seed taking plate can rotate on the dibbler shaft (14), the shell (16) and the seed metering cam (9) are fixed, a seed discharging pipe (13) is arranged on the shell (16) on one side, the seed taking plate is an annular plate-shaped body, and the seed metering cam (9) is arranged on the other side of the shell (16). A seed chamber (20) is arranged on one side of the seed taking plate, a release plate placing groove is formed in the plate surface of the seed taking plate on the other side of the seed taking plate, a slotted hole (21) is formed in the position, close to the outer edge, of the seed taking plate, a seed taking nest (2) is formed in the position, on the outer edge of the slotted hole (21), of the seed taking plate, the nest core of the seed taking nest (2) faces the circle center direction of the seed taking plate, and a release plate is arranged in the release plate placing groove (6). A seed taking space is formed between the seed taking nest and the release plate (7), and the seed metering box (18) is arranged on one side of the release plate of the slotted hole.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, specifically relating to a seed-planting device for use on seeders for gourds, melons, and sunflowers. Background Technology

[0002] The core component of a seeder is the seed drill. Different seed drills are required depending on the crop. For example, a seed drill suitable for cotton is needed when planting cotton.

[0003] With the increasing planting area of ​​bottle gourd, watermelon, and sunflower, the demand for mechanized sowing is gradually increasing. Developing a seed planter suitable for sowing bottle gourd, watermelon, and sunflower can greatly improve work efficiency and results. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a seeder specifically for sowing gourds, melons, and sunflowers.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a seed-growing device for melons, characterized in that it includes a seed-growing shaft (14) and a seed-discharging box (18). A housing (16), a seed-collecting plate, and a seed-discharging cam (9) are fitted onto the seed-growing shaft (14). The seed-collecting plate can rotate on the seed-growing shaft (14), while the housing (16) and the seed-discharging cam (9) are fixed. A seed-dropping tube (13) is provided on one side of the housing (16). The seed-collecting plate is an annular plate-shaped body, with seeds on one side of the seed-collecting plate. The room (20) has a release plate placement groove (6) on the other side of the seed-taking plate. The seed-taking plate has a slot (21) near the outer edge. The seed-taking plate at the outer edge of the slot (21) has a seed-taking nest (2). The center of the seed-taking nest (2) faces the center of the seed-taking plate. A release plate (7) is placed in the release plate placement groove (6). The space between the seed-taking nest (2) and the release plate (7) is the seed-taking space. The seed-discharging box (18) is placed on one side of the release plate in the slot (21).

[0007] As an improvement, a seed distribution box (18) is also provided. The seed distribution box (18) is located at the outer edge of the seed taking plate. The seed distribution box (18) has a T-shaped cross section and the lower part is a seed box that can be received at the slot (21). The release plate (7) swings to discharge the seeds from the seed taking hole (2) into the seed box. A sowing duckbill can be provided on the outside of the seed distribution box (18). The seed box is connected to the duckbill.

[0008] As an improvement, the surface of the housing (16) is provided with a seed metering wheel adjustment hole (16-2). By inserting a bolt into the seed metering wheel adjustment hole (16-2), the housing (16) and the seed metering cam (9) are connected as a whole.

[0009] As an improvement, the middle part of the release plate (7) is hinged to the seed-taking plate, and a pulley (4) is provided at one end. When the pulley (4) passes the protrusion of the seed-discharging cam (9), it will drive the release plate (7) to swing around the hinge part. The swing of the release plate (7) realizes the seed-taking hole (2) to discharge seeds.

[0010] As an improvement, a tension spring (8) is provided between the release plate (7) and the seed-taking plate. Under the tension of the tension spring (8), the release plate (7) normally blocks the seed-taking hole (2). When the pulley (4) passes the seed-discharging cam (9) and is subjected to external force, the release plate (7) swings and exposes the seed-taking hole (2) to realize seed discharging.

[0011] As an improvement, the seed metering wheel adjustment hole (16-2) is strip-shaped. The angle of the seed metering cam (9) can be adjusted by pressing the bolt into different positions of the seed metering wheel adjustment hole (16-2). Adjusting the angle of the seed metering cam (9) is to adjust the position of the protrusion on the outer edge of the seed metering cam (9). The purpose is to adjust the timing when the pulley (4) of the release plate (7) contacts the protrusion, so as to control and adjust the seed metering timing.

[0012] As an improvement, the structure of the seeding cam (9) is as follows: it includes a seeding cam (9), the surface of the seeding cam (9) is provided with mounting holes, the seeding cam (9) is annular, the outer edge of the seeding cam (9) is provided with a pulley track (9-1), the center is provided with a through hole for fixing the seeder shaft (14), the edge of the seeding cam (9) is also provided with a head slot (9-4), the head slot (9-4) is provided with a cam head (11), one end of the cam head (11) is hinged to the seeding cam (9) through a head shaft (9-2), and a spring (10) is provided between the cam head (11) and the seeding cam (9). When the cam head (11) is subjected to external force, it can retract into the head slot (9-4), and when the external force disappears, it can extend out of the head slot (9-4) under the action of the spring (10).

[0013] As an improvement, the cam chuck (11) is provided with a protrusion (11-3) and a notch (9-3) is provided on the chuck groove (9-4). When the cam chuck (11) is retracted into the chuck groove (9-4), the protrusion (11-3) can enter the notch (9-3). The spring (10) is provided on the protrusion (11-3) and the notch (9-3).

[0014] As an improvement, the outer edge of the cam chuck (11) is provided with contact surface A (11-1) and contact surface B (11-2), which are arc-shaped surfaces facing the pulley rail (9-1). When a pulley (4) on the pulley rail (9-1) moves toward and releases from the cam chuck (11), the arc-shaped surface serves as the contact surface for the pulley (4) to contact the cam chuck (11). The arc-shaped surface design can avoid hard contact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the seeding device.

[0016] Figure 2 This is a side view of the seeding device.

[0017] Figure 3 This is a schematic diagram of the main disk's three-dimensional structure (I).

[0018] Figure 4 This is a schematic diagram of the main disk's three-dimensional structure, II.

[0019] Figure 5 This is a schematic diagram of the main structure of the seed-collecting mechanism.

[0020] Figure 6 This is a schematic diagram of the rear view of the seed-collecting mechanism.

[0021] Figure 7 This is a schematic diagram of the three-dimensional structure of the seed-collecting mechanism (I).

[0022] Figure 8 This is a schematic diagram of the three-dimensional structure of the seed-collecting mechanism (II).

[0023] Figure 9 This is a schematic diagram of the three-dimensional structure of the seed collection tray (I).

[0024] Figure 10 This is a schematic diagram of the three-dimensional structure of the seed collection tray (II).

[0025] Figure 11 This is a schematic diagram (III) of the three-dimensional structure of the seed collection tray.

[0026] Figure 12 This is a schematic diagram of the three-dimensional structure of the seed collection tray (IV).

[0027] Figure 13 This is a schematic diagram of the first type of seed-collecting block structure.

[0028] Figure 14 This is a schematic diagram of the second type of seed-collecting block structure.

[0029] Figure 15 This is a schematic diagram of the third type of seed-collecting block structure.

[0030] Figure 16This is a schematic diagram of the first type of release plate structure.

[0031] Figure 17 This is a schematic diagram of the second type of release plate structure.

[0032] Figure 18 This is a schematic diagram of the main structure of the seed reel.

[0033] Figure 19 This is a schematic diagram of the rear view structure of the seed reel.

[0034] Figure 20 This is a schematic diagram of the three-dimensional structure of the seed reel (I).

[0035] Figure 21 This is a schematic diagram of the three-dimensional structure of the seed reel (II).

[0036] Figure 22 This is a schematic diagram (III) of the three-dimensional structure of the seed reel.

[0037] Figure 23 This is a schematic diagram of the three-dimensional structure of the seed reel (IV).

[0038] Figure 24 This is a schematic diagram of the three-dimensional structure of the seed metering cam.

[0039] Figure 25 This is a schematic diagram of the three-dimensional structure of the seed metering cam (II).

[0040] Figure 26 This is a schematic diagram (III) of the three-dimensional structure of the seed metering cam.

[0041] Figure 27 This is a schematic diagram of the three-dimensional structure of the seed metering cam (IV).

[0042] Figure 28 This is a schematic diagram of the three-dimensional structure of the cam chuck.

[0043] Figure 29 This is a schematic diagram of the three-dimensional structure of the cam chuck II.

[0044] Figure 30 This is a schematic diagram (III) of the cam chuck's three-dimensional structure.

[0045] Figure 31 This is a schematic diagram of the three-dimensional structure of the seed box.

[0046] Figure 32 This is a schematic diagram of the three-dimensional structure of the seed box (II).

[0047] Figure 33 This is a schematic diagram (III) of the three-dimensional structure of the seed box.

[0048] Figure 34 This is a schematic diagram of the main structure of the lever.

[0049] Figure 35 This is a schematic diagram of the three-dimensional structure of the lever (I).

[0050] Figure 36 This is a schematic diagram of the main structure of the seeding timing adjustment plate.

[0051] Figure 37 This is a schematic diagram of the three-dimensional structure of the seeding timing adjustment plate (I).

[0052] Figure 38 This is a schematic diagram (II) of the three-dimensional structure of the seeding timing adjustment plate.

[0053] In the diagram: 1 is the seed-collecting block, 1-1 is the connecting part, 2 is the seed-collecting hole, 3 is the release plate support shaft, 4 is the pulley, 5 is the seed-collecting disc, 6 is the release plate placement groove, 7 is the release plate, 7-1 is the tension spring fixing part, 7-2 is the reinforcing rib, 7-3 is the pulley shaft, 8 is the tension spring, 9 is the seed-discharging cam, 9-1 is the pulley track, 9-2 is the chuck shaft, 9-3 is the notch, 9-4 is the chuck groove, 10 is the spring, 11 is the cam chuck, 11-1 is the contact surface A, 11-2 is the contact surface B, 11-3 is the protrusion, 12 is the seed, 13 is the seed-discharging tube, and 14 is the seed-discharging device shaft. 5 is the bearing, 16 is the outer casing, 16-1 is the seed inlet, 16-2 is the seed metering wheel adjustment hole, 17 is the lever, 17-1 is the fixed shaft, 17-2 is the connecting rod, 17-3 is the paddle, 18 is the seed metering box, 18-1 is the inoculation chamber, 18-2 is the duckbill connection hole, 18-3 is the seed metering port, 19 is the pressure plate, 20 is the seed chamber, 21 is the slot, 22 is the slope surface, 23 is the seed block fixing part, 24 is the seed metering timing adjustment plate, 24-1 is the bolt hole, 24-2 is the plate body, 24-3 is the seed planter shaft mounting hole, 24-4 is the pointer, and 24-5 is the handle. Detailed Implementation

[0054] The following embodiments further illustrate the above-described content of the present invention in detail. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0055] Example 1: Refer to Figure 1-4This is a schematic diagram of the structure of Embodiment 1 of the present invention. This embodiment discloses a seed-harvesting device, including a seed-harvesting shaft (14) and a seed-discharging box (18). A housing (16), a seed-collecting plate, and a seed-discharging cam (9) are sleeved on the seed-harvesting shaft (14). The seed-collecting plate can rotate on the seed-harvesting shaft (14), while the housing (16) and the seed-discharging cam (9) are fixed. A seed-dropping tube (13) is provided on one side of the housing (16). The seed-collecting plate is an annular plate-shaped body. One side is a seed chamber (20), and the other side has a release plate placement groove (6) on the surface of the seed taking plate. The seed taking plate has a slot (21) near the outer edge. The seed taking plate on the outer edge of the slot (21) has a seed taking hole (2). The center of the seed taking hole (2) faces the center of the seed taking plate. A release plate (7) is set in the release plate placement groove (6). The space between the seed taking hole (2) and the release plate (7) is the seed taking space. The seed discharge box (18) is set on one side of the release plate in the slot (21).

[0056] The seed distribution box (18) is located at the outer edge of the seed taking plate. The seed distribution box (18) has a T-shaped cross section and the lower part is a seed box that can be received at the slot (21). The release plate (7) swings to discharge the seeds from the seed taking hole (2) into the seed box. A sowing duckbill can be provided on the outside of the seed distribution box (18). The seed box is connected to the duckbill.

[0057] The outer shell (16) has a seed metering wheel adjustment hole (16-2) on its surface. The outer shell (16) and the seed metering cam (9) are connected as a whole by inserting a bolt into the seed metering wheel adjustment hole (16-2).

[0058] The middle part of the release plate (7) is hinged to the seed-taking plate, and a pulley (4) is provided at one end. When the pulley (4) passes the protrusion of the seed-discharging cam (9), it will drive the release plate (7) to swing around the hinge part. The swing of the release plate (7) realizes the seed-taking hole (2) to discharge seeds.

[0059] A tension spring (8) is provided between the release plate (7) and the seed-taking plate. Under the tension of the tension spring (8), the release plate (7) normally blocks the seed-taking hole (2). When the pulley (4) passes the seed-discharging cam (9) and is subjected to external force, the release plate (7) swings and exposes the seed-taking hole (2) to achieve seed discharging.

[0060] As an improvement, the seed metering wheel adjustment hole (16-2) is strip-shaped. The angle of the seed metering cam (9) can be adjusted by pressing the bolt into different positions of the seed metering wheel adjustment hole (16-2). Adjusting the angle of the seed metering cam (9) is to adjust the position of the protrusion on the outer edge of the seed metering cam (9). The purpose is to adjust the timing when the pulley (4) of the release plate (7) contacts the protrusion, so as to control and adjust the seed metering timing.

[0061] In actual use: a sowing duckbill is installed on the outside of the seed box (18). When the seeder rotates, the seeds enter the seed collection hole (2) below. As the seed collection plate rotates, the release plate (7) opens, and the seeds in the seed collection hole (2) are discharged into the seed box (18). Finally, the seeds are sown by the sowing duckbill. The seeds are put into the seed chamber through the seed tube (13).

[0062] Example 2: Compared with Example 1, the difference in this example is that: one side of the slot (21) is provided with a sloping surface (22), which is inclined towards the slot (21). The sloping surface (22) is located on one side of the seed chamber (20). The sloping surface (22) is inclined towards the notch because the end away from the notch is thicker and the end closer to the notch is thinner.

[0063] Example 3: Compared with any of Examples 1-2, the difference in this example is that the structure of the seeding cam (9) is as follows: it includes a seeding cam (9), the surface of the seeding cam (9) is provided with mounting holes, the seeding cam (9) is annular, the outer edge of the seeding cam (9) is provided with a pulley track (9-1), the center is provided with a through hole for fixing the seeding device shaft (14), the edge of the seeding cam (9) is also provided with a head groove (9-4), the head groove (9-4) is provided with a cam head (11), one end of the cam head (11) is hinged to the seeding cam (9) through a head shaft (9-2), and a spring (10) is provided between the cam head (11) and the seeding cam (9). When the cam head (11) is subjected to external force, it can retract into the head groove (9-4), and when the external force disappears, it can extend out of the head groove (9-4) under the action of the spring (10).

[0064] In actual use: When the pulley (4) that moves on the pulley track (9-1) approaches the cam chuck (11) from the direction of the chuck shaft (9-2) that connects the cam chuck (11) and the seeding cam (9), the cam chuck (11) can be squeezed into the chuck groove (9-4). When it approaches the cam chuck (11) from the direction of the chuck shaft (9-2) that connects the cam chuck (11) and the seeding cam (9), it cannot squeeze the cam chuck (11) into the chuck groove (9-4). The cam chuck (11) can drive the release plate (7) to swing. Through this structural design, the mechanism distinguishes between forward and reverse rotation. Forward rotation means that the pulley (4) contacts the cam chuck from a direction away from the chuck shaft (9-2), and cannot squeeze the cam chuck (11) into the chuck groove (9-4), thus realizing the swing of the release plate (7). Reverse rotation means that the pulley (4) contacts the cam chuck from a direction close to the chuck shaft (9-2), and can squeeze the cam chuck (11) into the chuck groove (9-4), thus realizing the swing of the release plate (7). By distinguishing between forward and reverse rotation, the purpose of forward rotation for seeding and reverse rotation for not seeding is achieved.

[0065] Example 4: Compared with any of Examples 1-3, the difference in this example is that: the cam chuck (11) is provided with a protrusion (11-3) and the chuck groove (9-4) is provided with a recess (9-3). When the cam chuck (11) is retracted into the chuck groove (9-4), the protrusion (11-3) can enter the recess (9-3). The spring (10) is provided on the protrusion (11-3) and the recess (9-3).

[0066] Example 5: Compared with any of Examples 1-4, the difference in this example is that the outer edge of the cam chuck (11) is provided with a contact surface A (11-1) and a contact surface B (11-2), which are arc-shaped surfaces facing the pulley track (9-1). When a pulley (4) on the pulley track (9-1) moves toward the cam chuck (11) and is released, the arc-shaped surface serves as the contact surface for the pulley (4) to contact the cam chuck (11). The arc-shaped surface design can avoid hard contact.

[0067] Example 6: Refer to Figures 36-38 The diagram below is a structural schematic of embodiment 6 of this utility model. Compared with embodiments 1-5, the difference in this embodiment is that the seeding wheel adjustment hole (16-2) is strip-shaped, and a seeding timing adjustment plate (24) is provided on the outer surface of the outer shell (16). The seeding timing adjustment plate (24) is plate-shaped or sheet-shaped. The seeding timing adjustment plate (24) is provided with bolt holes (24-1), seeder shaft mounting holes (24-3) and handles (24-5). The bolts pass through the bolt holes (24-1) and the seeding wheel adjustment hole (16-2) in sequence and are connected to the seeding cam (9). When it is necessary to adjust the position of the seeding cam (9), it is only necessary to loosen the bolts and operate the handle (24-5) to drive the seeding cam (9) to rotate. When fixing, it is only necessary to tighten the bolts.

[0068] Example 7: Refer to Figure 5-8 and Figure 13 This is a schematic diagram of the structure of embodiment 7 of the present utility model. This embodiment discloses a seed-taking mechanism used on a seed-taking device, which includes a seed-taking plate. The seed-taking plate is a ring-shaped plate with a slot (21) near the outer edge. A seed-taking hole (2) is provided on the seed-taking plate at the outer edge of the slot (21). The center of the seed-taking hole (2) faces the center of the seed-taking plate. A slope (22) is provided on one side of the slot (21). The slope (22) is inclined towards the slot (21). A release plate placement groove (6) is provided on the other side of the plate. The seed-taking hole (2) and the plane of the release plate placement groove (6) form a seed-taking space.

[0069] The slope (22) is inclined toward the gap because the end away from the gap is thicker and the end closer to the gap is thinner.

[0070] In actual seed collection operations: a release plate (7) needs to be placed in the release plate placement slot (6). The seed collection hole (2) and the release plate (7) form a seed collection space. The release plate (7) is hinged to the seed collection plate. The release plate (7) can swing in the release plate placement slot (6). The swinging state can cover the seed collection hole (2) and expose the seed collection hole (2). Covering the seed collection hole (2) is the seed collection state, and exposing the seed collection hole (2) is the seed discharging state.

[0071] In this embodiment, the seed-taking plate is a single unit, and the slots are through holes on both sides of the measuring cylinder plate.

[0072] The seed-taking plate is set vertically, the seed chamber is set on one side of the seed-taking plate, and the seed-distribution box (18) is set on the other side, so that seeds can be taken from one side of the seed-taking plate and distributed on the other side.

[0073] Example 8: Compared with Example 7, the difference in this example is that the seed-taking plate includes a seed-taking disc (5) and a seed-taking block (1). The seed-taking disc (5) is an annular plate with a notch on its outer edge. The seed-taking block (1) is arc-shaped and has a seed-taking recess (2) on its inner arc surface. The seed-taking block (1) is connected to the notch on the outer edge of the seed-taking disc (5). The seed-taking block (1) and the seed-taking disc (5) form a slot (21).

[0074] Since the seed collection block (1) and the seed collection tray (5) are designed separately, in order to adapt to different crops, only the seed collection block (1) needs to be replaced. The seed collection holes (2) on different seed collection blocks (1) have different shapes, which can adapt to different crops, such as designing seed collection blocks (1) suitable for sowing gourd, watermelon, and sunflower seeds.

[0075] Example 9: Compared with Example 7, the difference in this example is that the seed taking block (1) is connected to the seed taking plate (5) by bolts or screws, and the seed taking plate (5) and the seed taking block (1) are on the same plane.

[0076] Example 10: Refer to Figure 14 , Figure 15 The diagram below is a structural schematic of embodiment 10 of this utility model. The difference in this embodiment is that a slide is provided on one side of the seed taking block (1), and the release plate (7) can be placed in the slide and move in the slide.

[0077] Example 11: Refer to Figure 13 , Figure 14 , Figure 15 This is a schematic diagram of the structure of embodiment 11 of this utility model. The difference in this embodiment is that the shape of the seed-taking hole (2) is different to adapt to different crop seed taking and sowing.

[0078] Example 12: Refer to Figure 9-12The above is a schematic diagram of the structure of embodiment 12 of this utility model. This embodiment discloses a seed-taking disc used on a seed-taking device. The seed-taking disc (5) is a ring-shaped plate. The plate has a mounting hole and a notch on its outer edge. The outer edge of the notch has a stepped seed-taking block fixing part (23). One side of the slot (21) has a slope (22) that is inclined towards the notch. The other side has a release plate placement groove (6). A release plate (7) can be placed in the release plate placement groove (6). The release plate (7) can swing in the release plate placement groove (6).

[0079] The slope (22) is inclined toward the gap because the end away from the gap is thicker and the end closer to the gap is thinner.

[0080] Example 13: Refer to Figure 18-30 The above is a schematic diagram of the structure of embodiment 13 of this utility model. This embodiment discloses a seed metering cam used on a seed melon seed planter. It is provided with a seed metering cam (9). The outer edge of the seed metering cam (9) is provided with a pulley track (9-1), and the center is provided with a through hole for fixing the seed planter shaft (14). The edge of the seed metering cam (9) is also provided with a head slot (9-4). A cam head (11) is provided in the head slot (9-4). One end of the cam head (11) is hinged to the seed metering cam (9) through a head shaft (9-2). A spring (10) is provided between the cam head (11) and the seed metering cam (9). When the cam head (11) is subjected to external force, it can retract into the head slot (9-4). When the external force disappears, it can extend out of the head slot (9-4) under the action of the spring (10).

[0081] The seeding cam (9) is provided with mounting holes.

[0082] When the cam chuck (11) is squeezed from the end away from the chuck shaft (9-2), the cam chuck (11) can retract into the chuck groove (9-4). When the cam chuck (11) is squeezed from the end close to the chuck shaft (9-2), the cam chuck (11) cannot retract into the chuck groove (9-4).

[0083] Example 14: Compared with Example 13, the difference in this example is that: the cam chuck (11) is provided with a protrusion (11-3) and the chuck groove (9-4) is provided with a recess (9-3). When the cam chuck (11) is retracted into the chuck groove (9-4), the protrusion (11-3) can enter the recess (9-3). The spring (10) is provided on the protrusion (11-3) and the recess (9-3).

[0084] Example 15: Compared with Example 14, the difference in this example is that the outer edge of the cam chuck (11) is provided with contact surface A (11-1) and contact surface B (11-2), which are arc-shaped surfaces facing the pulley track (9-1). When the pulley (4) on the pulley track (9-1) moves toward the cam chuck (11) and is released, the arc-shaped surface serves as the contact surface for the pulley (4) to contact the cam chuck (11). The arc-shaped surface design can avoid hard contact.

Claims

1. A melon seed hill drop planter characterized by: The device comprises a hiller shaft (14) and a seed box (18), an outer shell (16), a seed taking plate and a seed distributing cam (9) are sleeved on the hiller shaft (14), the seed taking plate can rotate on the hiller shaft (14), the outer shell (16) and the seed distributing cam (9) are fixed, a seed tube (13) is arranged on one side of the outer shell (16), the seed taking plate is a ring-shaped plate body, one side of the seed taking plate is a seed chamber (20), the other side of the seed taking plate is provided with a release plate placing groove (6), a slot hole (21) is arranged on the outer edge of the seed taking plate, a seed taking nest (2) is arranged on the seed taking plate outside the slot hole (21), the center of the seed taking nest (2) is towards the center of the seed taking plate, a release plate (7) is arranged in the release plate placing groove (6), the seed taking nest (2) and the release plate (7) form a seed taking space, and the seed box (18) is arranged on the release plate side of the slot hole (21).

2. The melon hill drop unit of claim 1 wherein: A seed box (18) is further arranged on the outer edge of the seed taking plate, the seed box (18) is T-shaped in cross section, the lower part is a seed box which can be connected to the slot hole (21), the release plate (7) swings to discharge the seeds from the seed taking nest (2) into the seed box, and a seeding duckbill can be arranged on the outer side of the seed box (18), and the seed box is communicated with the duckbill.

3. The melon hill drop unit of claim 1 wherein: The surface of the outer shell (16) is provided with a seed distributing wheel adjusting hole (16-2), a bolt is inserted into the seed distributing wheel adjusting hole (16-2) to connect the outer shell (16) and the seed distributing cam (9) as a whole.

4. The melon hill drop unit of claim 1 wherein: The middle part of the release plate (7) is hinged on the seed taking plate, one end is provided with a pulley (4), when the pulley (4) passes through the protrusion of the seed distributing cam (9), the release plate (7) swings around the hinge part, and the seed taking nest (2) is discharged by the swing of the release plate (7).

5. The melon hiller of claim 1 wherein: The release plate (7) and the seed taking plate are provided with a tension spring (8), the release plate (7) is blocked from the seed taking nest (2) under the tension of the tension spring (8), when the pulley (4) passes through the seed distributing cam (9) and is subjected to an external force, the release plate (7) swings to expose the seed taking nest (2) to realize seed discharge.

6. The melon hiller of claim 3 wherein: The seed distributing wheel adjusting hole (16-2) is strip-shaped, the bolt can be pressed at different positions of the seed distributing wheel adjusting hole (16-2) to adjust the angle of the seed distributing cam (9), and the angle of the seed distributing cam (9) is adjusted to adjust the protrusion position of the outer edge of the seed distributing cam (9), and the purpose is to adjust the timing of the pulley (4) of the release plate (7) contacting the protrusion to control and adjust the seed discharge timing.

7. The melon hiller of claim 1 wherein: The seed discharge cam (9) is structured as follows: the seed discharge cam (9) is provided with a mounting hole on its surface, and is annular; the outer edge of the seed discharge cam (9) is provided with a pulley track (9-1), and the center is provided with a through hole for fixing the drill shaft (14); the edge of the seed discharge cam (9) is further provided with a chuck groove (9-4), and the chuck groove (9-4) is provided with a cam chuck (11); one end of the cam chuck (11) is hinged to the seed discharge cam (9) through a chuck shaft (9-2), and a spring (10) is arranged between the cam chuck (11) and the seed discharge cam (9); the cam chuck (11) can be retracted into the chuck groove (9-4) after being subjected to an external force, and can be extended out of the chuck groove (9-4) under the action of the spring (10) when the external force disappears.

8. The melon hiller of claim 7 wherein: The cam chuck (11) is provided with a lug (11-3), and the chuck groove (9-4) is provided with a notch (9-3); when the cam chuck (11) is retracted into the chuck groove (9-4), the lug (11-3) can enter the notch (9-3); and the spring (10) is arranged on the lug (11-3) and the notch (9-3).

9. The melon hiller of claim 7 wherein: The outer edge of the cam chuck (11) is provided with a contact surface A (11-1) and a contact surface B (11-2); the contact surface A (11-1) and the contact surface B (11-2) are arc surfaces; the arc surfaces face the pulley track (9-1); when the pulley (4) on the pulley track (9-1) moves towards the cam chuck (11) and is removed, the arc surfaces serve as the contact surfaces of the pulley (4) with the cam chuck (11).

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