A precision seed sowing and seed spacing device

Abstract

The utility model discloses a kind of accurate seeding seed precision seeding devices, including seed metering device body and bin shell, the bin body outside of seed metering device body is locked with bin shell by bolt, further include cut-in mechanism, the cut-in mechanism includes connecting pipe, U-shaped cutting seat, elbow pipe, slot baffle, tongue cutting plate, C-shaped limiting plate, guide bar, spring and double-end pressure disc, by setting cut-in mechanism at the bin shell of seed metering device body, cut-in mechanism is assembled at the feed location of seed metering device body The structure that can cut off feed, when seeding equipment shifts position, press slot baffle to make tongue cutting plate embed U-shaped cutting seat, can instantaneously block the path of seed flowing into seed bin, effectively solve the problem that seed is accumulated in bin due to road bumping caused by traditional spoon wheel type seed metering device, avoid seed from directly falling more rows by crossing division disc from source, effectively guarantee seeding precision.

Description

Technical Field

[0001] This utility model relates to the field of seed metering devices, and in particular to a precise seed metering device. Background Technology

[0002] When seeds are sown through a seeding device, they enter the seed metering device. The seed metering device separates the seeds from the seed box through mechanical transmission or pneumatic action and discharges them according to a predetermined pattern. Its core principle is to use the physical characteristics of the seeds (such as shape, size, and weight) and the movement of mechanical structures (such as rotation, vibration, and airflow adsorption) to achieve orderly arrangement and precise quantitative dispensing of the seeds, including spoon wheel type, spoon clamp type, and finger clamp type.

[0003] When using a conventional spoon-wheel seed metering device, after sowing one acre, the seed metering device, carrying seeds, moves to the next acre due to road bumps. This causes seeds to accumulate along the seed metering device's inlet tube into the seed bin. The accumulated seeds then bypass the dividing plate and fall directly into the seed guide plate, resulting in excessive seed quantity and affecting sowing accuracy. To address this, we propose a precise seed sowing and metering device. Utility Model Content

[0004] The main objective of this invention is to provide a precise seed sowing and metering device. By incorporating a cutting-in mechanism at the seed metering unit's housing, this mechanism can cut off the feed at the feed position. When the sowing device moves, pressing the notched baffle causes the tongue-shaped cutter to embed into the U-shaped cutter seat, instantly blocking the path of seeds into the seed chamber. This effectively solves the problem of seed accumulation in the chamber caused by road bumps in traditional spoon-wheel seed meters, preventing seeds from overflowing the dividing plate and falling directly into multiple rows, thus ensuring sowing accuracy. Furthermore, the notched baffle of the cutting-in mechanism is positioned by a spring-supported double-headed pressure plate elastically engaging with a C-shaped limiting plate. It also uses a guide bar and guide groove for guidance, allowing the notched baffle to be easily pressed and unlocked, facilitating manual adjustment of its position. Operators can switch between feeding and cutting-in states by lifting or pressing the notched baffle, enabling convenient cutting and feeding operations at the seed metering unit itself, effectively solving the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A precision seed sowing and metering device includes a seed metering body and a housing. The housing is bolted to the outside of the housing of the seed metering body. It also includes a cutting mechanism, which comprises a connecting pipe, a U-shaped cutting seat, a bent connecting pipe, a notched baffle, a tongue-shaped cutting plate, a C-shaped limiting plate, a guide bar, a spring, and a double-headed pressure plate. A feed hole is formed through the side wall of the housing, and a connecting pipe is fixed inside the feed hole. A U-shaped cutting seat is integrally formed between the connecting pipe and the bent connecting pipe, and the top of the U-shaped cutting seat has a central cutting groove communicating with its own cavity. The groove cavity of the middle section is fitted with an upwardly protruding notched baffle, and the bottom end of the notched baffle is integrally formed with a tongue-shaped cut-off plate for cutting off the tubular seat cavity inside the U-shaped cut-off seat. A C-shaped limiting plate is installed on the surface of the U-shaped cut-off seat outside the notched baffle, and a receiving groove and a positioning groove are respectively opened on the vertical plates on both sides of the C-shaped limiting plate. A spring is pressed into one side plate of the notched baffle by a double-headed pressure plate, and the short rod head of the double-headed pressure plate is inserted into the positioning groove. Guide grooves are symmetrically opened in the middle section groove below the receiving groove, and a guide bar fixed on the other side of the notched baffle is inserted between the receiving groove and the guide groove.

[0007] Furthermore, a column hole is provided on the side of the plate away from the guide bar of the notched baffle, and a spring and a double-headed pressure plate are sequentially installed in the column hole. The long rod of the double-headed pressure plate is inserted into the spring coil, and the plate body of the double-headed pressure plate is inserted into the column hole and contacts the spring coil.

[0008] By adopting the above technical solution, after the long rod of the double-headed pressure plate is inserted into the spring, the double-headed pressure plate can press the spring and be inserted into the column hole of the notched baffle. Then, under the elastic support of the spring, the plate body of the double-headed pressure plate can support the short rod to be inserted outward into the positioning groove of the C-shaped limiting plate for locking.

[0009] Furthermore, the long strip of the C-shaped limiting plate and the U-shaped truncated seat are provided with mounting holes for screw bolts, and the two sets of opposing vertical plates of the C-shaped limiting plate are stuck on both sides of the vertical plate of the notched baffle.

[0010] By adopting the above technical solution, the long strip of the C-shaped limiting plate and the U-shaped cut seat can be locked by screwing bolts. Then, the vertical plate of the C-shaped limiting plate can be closely attached to both sides of the vertical plate of the notched baffle, so that after the short rod head of the double-headed pressure plate retracts into the column hole, the notched baffle can be pressed down into the middle cut groove.

[0011] Furthermore, the back of the plate body of the notched baffle, which exposes the middle section groove, is provided with a recessed notch, and the tongue section at the bottom of the notched baffle abuts against the groove wall of the U-shaped section seat.

[0012] By adopting the above technical solution, the tongue-shaped baffle below the slotted baffle abuts against the groove wall of the U-shaped baffle to cut off the tube. At the same time, the slotted baffle is recessed into the slot and can be held by hand, making it easy to pull the slotted baffle upward.

[0013] Furthermore, the U-shaped cut-off seat is interconnected with the cavity of the bend pipe and the connecting pipe, and the pipe body of the connecting pipe is inserted into the cavity of the feed hole and bonded and fixed.

[0014] By adopting the above technical solution, the U-shaped cut-off seat can be connected to the elbow pipe and connecting pipe through a seed, and the connecting pipe can be firmly installed by being inserted and bonded inside the feed pipe.

[0015] Furthermore, the double-channel cavities of the receiving groove and the guide groove are vertically interconnected, and a round-headed strip with a guide bar is slidably inserted into the double-channel cavities of the receiving groove and the guide groove.

[0016] By adopting the above technical solution, the round-headed strip of the guide bar can be vertically inserted between the groove and the guide groove for guidance, so that the groove baffle can be guided to descend.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model sets up a cutting-in mechanism at the shell of the seed metering device body. The cutting-in mechanism is assembled at the feeding position of the seed metering device body to cut off the feeding structure. When the sowing equipment moves to a different position, pressing the notched baffle makes the tongue plate embed into the U-shaped cutting seat, which can instantly block the path of seeds flowing into the seed bin. This effectively solves the problem of seed accumulation in the bin caused by road bumps in traditional spoon wheel seed metering devices. It avoids seeds from falling directly over the dividing plate and dropping multiple times from the source, effectively ensuring sowing accuracy.

[0019] Furthermore, the notch baffle of the cutting mechanism is positioned by a spring-supported double-headed pressure plate that is elastically engaged at the C-shaped limiting plate. At the same time, it is guided by the guide bar and the guide groove, which makes it easy to press and unlock the notch baffle. This allows for easy manual change of the notch baffle position. The operator can switch between the feeding and cutting states by lifting or pressing the notch baffle, which facilitates the cutting and feeding operations at the seed metering device body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a precision seed sowing and metering device according to the present invention.

[0021] Figure 2 This is a schematic diagram of the cutting-in state of a seed precision sowing and metering device according to the present invention.

[0022] Figure 3 This is a schematic diagram showing the separation of the connecting pipe and the casing of a seed precision sowing and metering device according to this utility model.

[0023] Figure 4 This is an exploded view of the cutting mechanism of a precision seed sowing and metering device according to this utility model.

[0024] In the diagram: 1. Seeder body; 2. Housing; 3. Feed hole; 4. Cutting mechanism; 5. Connecting pipe; 6. U-shaped cut-off seat; 7. Bend pipe; 8. Middle cut-off groove; 9. Groove baffle; 10. Tongue cut-off plate; 11. C-shaped limiting plate; 12. Guide groove; 13. Guide bar; 14. Spring; 15. Double-headed pressure plate; 16. Positioning groove; 17. Receiving groove plate. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4 As shown, a precision seed sowing and metering device includes a seed metering body 1 and a housing 2. The housing 2 is bolted to the outside of the housing of the seed metering body 1. The device also includes a cutting mechanism 4, which comprises a connecting pipe 5, a U-shaped cutting seat 6, a bent connecting pipe 7, a notched baffle 9, a tongue cutting plate 10, a C-shaped limiting plate 11, a guide bar 13, a spring 14, and a double-headed pressure plate 15. A feed hole 3 is provided through the side wall of the housing 2, and the connecting pipe 5 is fixed inside the cavity of the feed hole 3. A U-shaped cutting seat 6 is integrally formed between the connecting pipe 5 and the bent connecting pipe 7. The top of the U-shaped cutting seat 6 has a central cutting groove 8 that communicates with its own cavity. A notched baffle 9 protruding upwards is fitted inside the groove cavity of the 8, and a tongue-shaped cut-off plate 10 is integrally formed at the bottom end of the notched baffle 9 for cutting off the tubular seat cavity inside the U-shaped cut-off seat 6. A C-shaped limiting plate 11 is installed on the surface of the U-shaped cut-off seat 6 outside the notched baffle 9, and a receiving groove 17 and a positioning groove 16 are respectively opened on the vertical plates on both sides of the C-shaped limiting plate 11. A spring 14 is pressed into one side plate of the notched baffle 9 by a double-headed pressure plate 15, and the short rod head of the double-headed pressure plate 15 is inserted into the positioning groove 16. A guide groove 12 is symmetrically opened in the middle cut groove 8 below the receiving groove 17, and a guide strip 13 fixed on the other side of the notched baffle 9 is inserted between the receiving groove 17 and the guide groove 12.

[0027] The notched baffle 9 has a column hole on the side of the plate away from the guide bar 13, and a spring 14 and a double-headed pressure plate 15 are sequentially installed in the column hole. The long rod of the double-headed pressure plate 15 is inserted into the spring ring of the spring 14, and the plate of the double-headed pressure plate 15 is inserted into the column hole and contacts the spring ring of the spring 14.

[0028] By adopting the above technical solution, after the long rod of the double-headed pressure plate 15 is inserted into the spring 14, the double-headed pressure plate 15 can press the spring 14 and be inserted into the column hole of the notched baffle 9. Then, under the elastic support of the spring 14, the plate body of the double-headed pressure plate 15 can support the short rod to be inserted outward into the positioning groove 16 of the C-shaped limiting plate 11 for locking.

[0029] The C-shaped limiting plate 11 has mounting holes for screw bolts between its long strip and the U-shaped cut-off seat 6, and the two sets of opposing vertical plates of the C-shaped limiting plate 11 are stuck on both sides of the vertical plate of the notched baffle 9.

[0030] By adopting the above technical solution, the long strip of the C-shaped limiting plate 11 and the U-shaped cut seat 6 can be locked by screwing bolts. Then, the vertical plate of the C-shaped limiting plate 11 can be closely attached to both sides of the vertical plate of the notched baffle 9, so that after the short rod head of the double-headed pressure plate 15 is retracted into the column hole, the notched baffle 9 can be pressed down into the middle cut groove 8.

[0031] The notched baffle 9 has a recessed notch on the back of the plate body that exposes the middle section groove 8, and the tongue section 10 at the bottom of the notched baffle 9 abuts against the groove wall of the U-shaped section seat 6.

[0032] By adopting the above technical solution, the tongue plate 10 below the notched baffle 9 abuts against the groove wall of the U-shaped cut-off seat 6 to cut off the tube. At the same time, the notched baffle 9 is recessed into the notched groove and can be held by hand, making it convenient to pull the notched baffle 9 upward.

[0033] The U-shaped support 6 is interconnected with the lumens of the bent pipe 7 and the connecting pipe 5, and the pipe body of the connecting pipe 5 is inserted into the cavity of the feed hole 3 and bonded and fixed.

[0034] By adopting the above technical solution, the U-shaped support 6 can be connected to the elbow pipe 7 and the connecting pipe 5 through a seed, and the connecting pipe 5 can be firmly installed by being inserted and bonded inside the feed pipe 3.

[0035] The double-channel cavities of the receiving groove 17 and the guide groove 12 are vertically interconnected, and the round-headed strip of the guide bar 13 is slidably inserted into the double-channel cavities of the receiving groove 17 and the guide groove 12.

[0036] By adopting the above technical solution, the round-headed strip of the guide bar 13 can be vertically inserted between the groove 17 and the guide groove 12 for guidance, so that the notched baffle 9 can be guided to descend.

[0037] It should be noted that this utility model is a seed precision sowing and metering device. A cutting-in mechanism 4 is provided at the housing 2 of the seed metering device body 1. After the connecting pipe 5 of the cutting-in mechanism 4 is fixedly connected and glued into the feed hole 3 of the housing 2, the long rod of the double-headed pressure plate 15 passes through the spring 14. The double-headed pressure plate 15 can press the spring 14 and be inserted into the column hole of the notched baffle 9. Then, the notched baffle 9 is guided and lowered by the guide bar 13 towards the guide groove 12 of the middle cutting groove 8, so that the notched baffle 9 enters the middle cutting groove 8. At this time, the tongue-shaped cutting plate 10 cuts the cavity at the U-shaped cutting seat 6 and is in the cutting state. When the notched baffle 9 enters the middle cutting groove 8, the short rod head of the double-headed pressure plate 15 can be elastically supported in the middle cutting groove 8. Then, the C-shaped limiting plate 11 is clamped on the outside of the notched baffle 9 along the guide bar 12 with the help of the connecting groove 17. The C-shaped limiting plate 11 is locked to the top of the U-shaped cutting seat 6 with bolts. Under the elastic support of the spring 14, the disc body of the double-headed pressure plate 15 can support the short rod head to be inserted outward into the positioning groove 16 of the C-shaped limiting plate 11 for locking.

[0038] When the seed metering device 1 is installed at the sowing equipment for sowing operations, the notch baffle 9 is lifted, causing the double-headed pressure plate 15 to rise. When the short rod of the double-headed pressure plate 15 rises to the C-shaped limiting plate 11, the short rod of the double-headed pressure plate 15 is locked into the positioning groove 16 under the support of the spring. At this time, the notch baffle 9, along with the tongue plate 10, leaves the cavity of the U-shaped cut-off seat 6, allowing the connecting pipe 5, U-shaped cut-off seat 6, and elbow pipe 7 to return to unobstructed flow. At this time, the cutting mechanism 4 is in the feeding state, and the seed box of the sowing equipment above the elbow pipe 7 can continuously drop material, allowing the seeds to enter the seed metering device 1 through the casing 2 for scooping. After sowing of a field, the short rod of the double-headed pressure plate 15 can be pressed down to retract into the column hole of the notch baffle 9, and then the notch can be pressed down. Baffle 9, the notched baffle 9 presses against the tongue cut plate 10 and enters the middle cut groove 8. The tongue cut plate 10, together with the notched baffle 9, can be inserted into the U-shaped cut seat 6 for cutting. At this time, the sowing equipment can be mechanically driven to the next field. When the sowing equipment vibrates with the seed metering device body 1, the seeds at the bend pipe 7 are cut off to prevent too many seeds from entering the seed bin between the bin 2 and the seed metering device body 1, and to avoid the problem of seed accumulation between the bin 2 and the seed metering device body 1 due to equipment movement. When the sowing equipment reaches the next field, the notched baffle 9 can be pulled up to return to the feeding state. When the seed metering device body 1 is installed at the sowing equipment, the original seed box discharge pipe of the sowing equipment can be appropriately adjusted under the guidance of professional technicians to ensure that the seeds can fall smoothly into the bend pipe 7.

[0039] It should be noted that this utility model is a seed precision sowing and metering device. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precision seed sowing and metering device, comprising a seed metering body (1) and a housing (2), wherein the housing (2) is bolted to the outside of the housing of the seed metering body (1), characterized in that: It also includes a cutting mechanism (4), which includes a connecting pipe (5), a U-shaped cutting seat (6), a bent pipe (7), a notched baffle (9), a tongue cutting plate (10), a C-shaped limiting plate (11), a guide bar (13), a spring (14), and a double-headed pressure plate (15). A feed hole (3) is provided through the side shell wall of the chamber (2), and a connecting pipe (5) is fixed in the cavity of the feed hole (3). A U-shaped cutting seat (6) is integrally formed between the connecting pipe (5) and the bent pipe (7), and a middle cutting groove (8) communicating with its own cavity is provided at the top of the seat of the U-shaped cutting seat (6). A notched baffle (9) protruding upward is installed in the cavity of the middle cutting groove (8), and the notched baffle (9) 9) The bottom end is integrally formed with a tongue plate (10) for cutting off the tubular seat cavity inside the U-shaped cut-off seat (6). A C-shaped limiting plate (11) is installed on the surface of the U-shaped cut-off seat (6) outside the notched baffle (9). A receiving groove (17) and a positioning groove (16) are respectively opened on the vertical plates on both sides of the C-shaped limiting plate (11). A spring (14) is pressed into one side plate of the notched baffle (9) by a double-headed pressure plate (15). The short rod head of the double-headed pressure plate (15) is inserted into the positioning groove (16). A guide groove (12) is symmetrically opened in the middle cut groove (8) below the receiving groove (17). A guide strip (13) fixed on the other side of the notched baffle (9) is inserted between the receiving groove (17) and the guide groove (12).

2. The seed precision sowing and metering device according to claim 1, characterized in that: The notched baffle (9) has a column hole on the side of the plate away from the guide bar (13), and a spring (14) and a double-headed pressure plate (15) are sequentially installed in the column hole. The long rod of the double-headed pressure plate (15) is inserted into the spring ring of the spring (14), and the plate of the double-headed pressure plate (15) is inserted into the column hole and contacts the spring ring of the spring (14).

3. The seed precision sowing and metering device according to claim 1, characterized in that: The long strip of the C-shaped limiting plate (11) and the U-shaped cut-off seat (6) are provided with mounting holes for screw bolts, and the two sets of opposing vertical plates of the C-shaped limiting plate (11) are stuck on both sides of the vertical plate of the notched baffle (9).

4. The seed precision sowing and metering device according to claim 1, characterized in that: The notched baffle (9) has a recessed notch on the back of the plate body that exposes the middle section groove (8), and the tongue section plate (10) at the bottom of the notched baffle (9) abuts against the groove wall of the U-shaped section seat (6).

5. The seed precision sowing and metering device according to claim 1, characterized in that: The U-shaped cut-off seat (6) communicates with the cavity of the bend pipe (7) and the connecting pipe (5), and the pipe body of the connecting pipe (5) is inserted into the cavity of the feed hole (3) and bonded and fixed.

6. The seed precision sowing and metering device according to claim 1, characterized in that: The double-channel cavities of the receiving groove (17) and the guide groove (12) are vertically interconnected, and the round-headed strip with the guide bar (13) is slidably inserted into the double-channel cavities of the receiving groove (17) and the guide groove (12).

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