Spoon clamp type precise corn seed sowing device with multiple seeds in one hole

Abstract

The utility model relates to the technical field of corn seeding devices, in particular to a spoon clamp type precise corn seeding device with multiple seeds in one hole. The utility model aims to solve the problem that a spoon-clamp type seed-metering device in the prior art can only be used for seeding one corn seed in one hole and cannot be used for seeding a plurality of plants in one hole. The seed metering device comprises a seed separating chamber shell, a seed collecting chamber shell, a partition plate, a spoon clamp and a seed metering wheel, the seed separating chamber shell, the partition plate and the seed collecting chamber shell are sequentially connected from front to back, the seed separating chamber shell and the partition plate form a seed separating chamber, and the partition plate and the seed collecting chamber shell form a seed collecting chamber; a front guide rail disc, a rear guide rail disc, a front spoon clamping disc and a rear spoon clamping disc are arranged in the seed distribution chamber, spoon clamps are arranged in front of the front spoon clamping disc and the rear spoon clamping disc, and a seed metering wheel is arranged in the seed collection chamber. The corn seeder is used for corn seeding.

Description

Technical Field

[0001] The utility model relates to the technical field of seeding devices, in particular to a spoon-clamp type corn one-hole multi-grain precision seeding device. Background Art

[0002] The essence of the work of the seed meter is to transform the seeds from groups into uniform seed flows or continuous single seeds through the action of the seed meter on the seeds. There are many types of seed meters currently in use, and the commonly used seed meters can be divided into centrifugal, air suction, spoon wheel and spoon clamp types. The one-hole multi-plant sowing method for crops can stimulate the root system of plants to grow underground and fully absorb underground water. The roots of the plants are intertwined, which enhances the ability to resist lodging. The dense planting of multiple plants increases the chance of male pollination and improves the yield. It also has good water retention and warmth retention, which is more conducive to the growth of corn and achieves high yields.

[0003] The existing corn scoop clamp type seeding device usually uses a cam to drive the scoop clamp to open and close to complete the seed carrying operation, and then resets by a spring. Usually, only one corn seed can be sown in one hole, and it is not possible to complete the sowing operation of multiple plants in one hole, and the sowing efficiency is low. Therefore, a scoop clamp type corn one hole multiple grains precision seeding device is provided to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problem that the scoop-clamp type seeding device in the prior art can usually only sow one corn seed in one hole and cannot complete the sowing operation of multiple plants in one hole, and further provides a scoop-clamp type corn one-hole multiple-grain precision seeding device.

[0005] The utility model adopts the following technical scheme to solve the above-mentioned problems: a spoon-clamp type corn one-hole multi-grain precision seeding device, comprising a seed separation chamber shell, a seed collection chamber shell, a partition, a spoon clamp and a seeding wheel; the seed separation chamber shell, the partition and the seed collection chamber shell are connected in sequence from front to back, the seed separation chamber shell and the partition constitute a seed separation chamber, and the partition and the seed collection chamber shell constitute a seed collection chamber; a front guide rail disc, a rear guide rail disc, a front spoon clamp disc and a rear spoon clamp disc are arranged in the seed separation chamber, a spoon clamp is arranged before the front spoon clamp disc and the rear spoon clamp disc, and a seeding wheel is arranged in the seed collection chamber.

[0006] Furthermore, the front guide rail disc is fixedly connected to the inner wall of the seed separation chamber shell, the rear guide rail disc is fixedly connected to the partition, the front spoon chuck and the rear spoon chuck are arranged between the front guide rail disc and the rear guide rail disc; the front spoon chuck and the rear spoon chuck are installed on the spoon chuck shaft, and the spoon chuck shaft passes through the front guide rail disc, the rear guide rail disc and the seeding wheel.

[0007] Furthermore, the front spoon chuck is evenly provided with a plurality of front sliding grooves along the circumference in the diameter direction, and each of the front sliding grooves is provided with a front positioning groove; the rear spoon chuck is evenly provided with a plurality of rear sliding grooves along the circumference in the diameter direction, and each of the rear sliding grooves is provided with a rear positioning groove, and the front spoon chuck and the rear spoon chuck are buckled together to form a spoon chuck; the spoon clamp includes a fixed clamp and a movable clamp, a sliding rod is provided at the end of the movable clamp, two positioning rods are provided on the sliding rod, the sliding rod is slidably connected with the front sliding groove and the rear sliding groove, and the positioning rod passes through the front positioning groove and the rear positioning groove.

[0008] Furthermore, the front guide rail disc is provided with a front special-shaped annular guide rail, and the rear guide rail disc is provided with a rear special-shaped annular guide rail. The positioning rods on both sides of the dynamic clamp extend into the front special-shaped annular guide rail and the rear special-shaped annular guide rail respectively, and the positioning rods can move along the front special-shaped annular guide rail and the rear special-shaped annular guide rail.

[0009] Further, the front special-shaped annular guide rail includes a front clamping area and a front release area, the front clamping area is arranged close to the outer edge of the front guide rail disk relative to the front release area, and the front clamping area and the front release area are smoothly connected by a front transition area; the rear special-shaped annular guide rail includes a rear clamping area and a rear release area, the rear clamping area is arranged close to the outer edge of the rear guide rail disk relative to the rear release area, and the rear clamping area and the rear release area are smoothly connected by a rear transition area.

[0010] Furthermore, the seeding wheel is evenly provided with a plurality of seed collecting partitions along the circumference in the diameter direction, and the spoon clamp plate is provided with a plurality of spoon clamps corresponding to the intervals between two adjacent seed collecting partitions.

[0011] Furthermore, an arc-shaped elastic baffle is installed on each of the seed collecting partitions, one end of the elastic baffle is connected to the seed collecting partition, and the other end is in contact with the circumferential side wall of the seed collecting chamber shell.

[0012] Furthermore, a seed feeding channel is arranged at the upper end of the seed separation chamber shell, a seed collecting channel is arranged at the lower end, a seed collecting hole is arranged on the partition plate, and the seed collecting channel and the seed collecting hole are arranged correspondingly.

[0013] Furthermore, a seed discharge channel is provided at the lower end of the seed collection chamber shell, an arc-shaped notch is provided at the connection position between the circumferential side surface of the seed collection chamber shell and the seed discharge channel, and the arc length P of the elastic baffle is greater than twice the arc length R of the notch.

[0014] Furthermore, a hollow seeding wheel shaft is provided on the side of the seeding wheel away from the spoon clamp, and the seeding wheel shaft is rotatably connected to the seed collecting chamber shell; one end of the spoon clamp disk shaft passes through the seeding wheel shaft and is rotatably connected to the seeding wheel shaft, and the other end is rotatably connected to the seed separating chamber shell, and a synchronous locking screw is also installed on the seeding wheel shaft.

[0015] The utility model has the following beneficial technical effects:

[0016] The utility model is used for the precision planting of multiple grains of corn in one hole. A scoop clamp and a scoop clamp are arranged in a seed separation chamber, a seed wheel is arranged in a seed collection chamber, a power mechanism drives the scoop clamp and the seed wheel to rotate, and through the rotation speed coordination of the scoop clamp and the seed wheel, the agronomic operation requirements of one hole with four plants and sparse planting and dense planting are realized, the per mu yield is increased, and the purpose of increasing production and income is achieved.

[0017] The utility model is provided with a front guide plate and a rear guide plate on both sides of the spoon clamp plate, and a special-shaped annular guide plate is provided on the front guide plate and the rear guide plate, and the filling and seeding of the spoon clamp are controlled by the special-shaped annular guide plate. The utility model adopts a special-shaped annular guide plate to drive the opening and closing of the movable clamp of the spoon clamp, and compared with the cam and spring structure of the existing spoon clamp seeding device, the movable clamp has sensitive action response, small friction, and improved seeding accuracy.

[0018] The utility model corn seeding device is towed by a towing object such as a tractor, etc., and the working status of the seeding device is accurately collected, analyzed and controlled through a PLC, the rotation speed of the seeding device and the sowing spacing are calculated, and the traveling speed of the tractor is combined with the feedback to the motor through the PLC. The motor controls the sowing speed of the spoon clamp, and then the speed of the towing object and the seeding wheel are coordinated to form a precision sowing operation with a hole spacing of 40-50cm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 yes Figure 2 A top view of

[0022] Figure 4 It is a cross-sectional view of the utility model;

[0023] Figure 5 The internal structure of the utility model Figure 1 ;

[0024] Figure 6 The internal structure of the utility model Figure 2 ;

[0025] Figure 7 The internal structure of the utility model Figure 3 ;

[0026] Figure 8 It is a schematic diagram of the assembly of the spoon clamp plate and the spoon clamp;

[0027] Fig. 9 It is a structural schematic diagram of the front spoon clamping plate;

[0028] Fig.10 It is a schematic diagram of the structure of the rear spoon chuck;

[0029] Fig.11 It is a schematic diagram of the assembly of the outer guide plate and the inner guide plate;

[0030] Fig.12 yes Fig.11 Left view of

[0031] Fig.13 It is a schematic diagram of the structure of the front guide plate;

[0032] Fig.14 It is a schematic diagram of the structure of the rear guide plate;

[0033] Fig.15 It is a structural schematic diagram of a spoon clamp moving clamp;

[0034] Fig.16 It is an axonometric drawing of the utility model;

[0035] Fig.17 It is the left view of 16;

[0036] In the figure, 1, the shell of the seed separation chamber; 101, the seed feeding channel; 102, the seed collection channel; 2, the shell of the seed collection chamber; 201, the seed discharge channel; 3, the partition; 301, the seed collection hole; 4, the front guide plate; 401, the front special-shaped annular guide rail; 402, the front clamping area; 403, the front transition area; 404, the front release area; 5, the rear guide plate; 501, the rear special-shaped annular guide rail; 502, the rear clamping area; 503, the rear transition area; 504, the rear release area; 6, the front spoon clamping plate; 601, the front sliding groove; 602 , front positioning groove; 7, rear scoop chuck; 701, rear sliding groove; 702, rear positioning groove; 8, scoop clamp; 801, fixed clamp; 802, dynamic clamp; 803, sliding rod; 804, positioning rod; 9, seeding wheel; 901, seed collecting partition; 902, seeding wheel shaft; 10, elastic baffle; 11, scoop chuck shaft; 12, synchronous locking screw; 13, speed change mechanism; 14, scoop chuck gear; 15, seeding wheel gear; 16, scoop chuck speed change gear; 17, seeding wheel speed change gear; 18, transmission shaft. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments of the specification. The specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0038] Specific implementation method 1: Combination Figures 1 to 17The present embodiment is described. The spoon-clamp type corn single-hole multi-grain precision seeding device described in the present embodiment comprises a seed separation chamber shell 1, a seed collection chamber shell 2, a partition 3, a spoon clamp 8 and a seeding wheel 9; the seed separation chamber shell 1, the partition 3 and the seed collection chamber shell 2 are sequentially connected from front to back, the seed separation chamber shell 1 and the partition 3 constitute a seed separation chamber, and the partition 3 and the seed collection chamber shell 2 constitute a seed collection chamber; a front guide rail plate 4, a rear guide rail plate 5, a front spoon clamp plate 6 and a rear spoon clamp plate 7 are provided in the seed separation chamber, a spoon clamp 8 is provided before the front spoon clamp plate 6 and the rear spoon clamp plate 7, and a seeding wheel 9 is provided in the seed collection chamber.

[0039] In a preferred embodiment, the front guide rail disc 4 is fixedly connected to the inner wall of the seed separation chamber shell 1, the rear guide rail disc 5 is fixedly connected to the partition 3, the front spoon chuck 6 and the rear spoon chuck 7 are arranged between the front guide rail disc 4 and the rear guide rail disc 5; the front spoon chuck 6 and the rear spoon chuck 7 are installed on the spoon chuck shaft 11, and the spoon chuck shaft 11 passes through the front guide rail disc 4, the rear guide rail disc 5 and the seeding wheel 9.

[0040] In a preferred embodiment, the front spoon chuck 6 is evenly provided with a plurality of front sliding grooves 601 along the circumference in the diameter direction, and each of the front sliding grooves 601 is provided with a front positioning groove 602; the rear spoon chuck 7 is evenly provided with a plurality of rear sliding grooves 701 along the circumference in the diameter direction, and each of the rear sliding grooves 701 is provided with a rear positioning groove 702, and the front spoon chuck 6 and the rear spoon chuck 7 are buckled together to form a spoon chuck; the spoon clamp 8 includes a fixed clamp 801 and a movable clamp 802, and a sliding rod 803 is provided at the end of the movable clamp 802, and two positioning rods 804 are provided on the sliding rod 803, and the sliding rod 803 is slidably connected with the front sliding groove 601 and the rear sliding groove 701, and the positioning rod 804 passes through the front positioning groove 602 and the rear positioning groove 702.

[0041] In a preferred embodiment, the front guide rail disc 4 is provided with a front special-shaped annular guide rail 401, and the rear guide rail disc 5 is provided with a rear special-shaped annular guide rail 501, and the positioning rods 804 on both sides of the dynamic clamp 802 extend into the front special-shaped annular guide rail 401 and the rear special-shaped annular guide rail 501 respectively, and the positioning rods 804 can move along the front special-shaped annular guide rail 401 and the rear special-shaped annular guide rail 501.

[0042] In a preferred embodiment, the front special-shaped annular guide rail 401 includes a front clamping area 402 and a front release area 404, the front clamping area 402 is arranged relative to the front release area 404 close to the outer edge of the front guide rail disc 4, and the front clamping area 402 and the front release area 404 are smoothly connected by the front transition area 403; the rear special-shaped annular guide rail 501 includes a rear clamping area 502 and a rear release area 504, the rear clamping area 502 is arranged relative to the rear release area 504 close to the outer edge of the rear guide rail disc 5, and the rear clamping area 502 and the rear release area 504 are smoothly connected by the rear transition area 503.

[0043] In a preferred embodiment, the seed wheel 9 is evenly provided with a plurality of seed collecting partitions 901 along the circumference in the diameter direction, and a plurality of spoon clamps 8 are provided between two adjacent seed collecting partitions 901 on the spoon clamp plate.

[0044] In a preferred embodiment, an arc-shaped elastic baffle 10 is installed on each of the seed collecting partitions 901 , one end of the elastic baffle 10 is connected to the seed collecting partition 901 , and the other end is in contact with the circumferential side wall of the seed collecting chamber shell 2 .

[0045] In a preferred embodiment, a seed feeding channel 101 is provided at the upper end of the seed separation chamber shell 1, a seed collecting channel 102 is provided at the lower end, a seed collecting hole 301 is provided on the partition plate 3, and the seed collecting channel 102 and the seed collecting hole 301 are provided correspondingly; in the vertical direction, the lowest point height of the seed collecting channel 102 is higher than the lowest point height of the elastic baffle 10.

[0046] In a preferred embodiment, a seed discharge channel 201 is provided at the lower end of the seed collection chamber shell 2, and an arc-shaped notch is provided at the connection position between the circumferential side surface of the seed collection chamber shell 2 and the seed discharge channel 201, and the arc length P of the elastic baffle 10 is greater than twice the arc length R of the notch.

[0047] In a preferred embodiment, a hollow seeding wheel shaft 902 is provided on the side of the seeding wheel 9 away from the spoon clamp 8, and the seeding wheel shaft 902 is rotatably connected to the seed collecting chamber shell 2; one end of the spoon clamp disk shaft 11 passes through the seeding wheel shaft 902 and is rotatably connected to the seeding wheel shaft 902, and the other end is rotatably connected to the seed separating chamber shell 1, and a synchronous locking screw 12 is also installed on the seeding wheel shaft 902.

[0048] Specific implementation method 2: Combination Figures 1 to 17This embodiment is described. In this embodiment, the spoon clamp 8 mainly includes a fixed clamp 801 and a movable clamp 802. The distance between the movable clamp 801 and the movable clamp 802 is adjusted to achieve seed filling and seed discharge. This is a mature existing technology in the field and will not be described in detail in this embodiment. A front guide plate 4 and a rear guide plate 5 are arranged on both sides of the spoon clamp plate. The front guide plate 4 and the rear guide plate 5 are provided with special-shaped annular guide rails. The front special-shaped annular guide rail 401 includes a front clamping area 402 and a front release area 404. The front clamping area 402 is arranged near the outer edge of the front guide plate 4 relative to the front release area 404, and the front clamping area 402 and the front release area 404 are smoothly connected through the front transition area 403. The rear special-shaped annular guide rail 501 includes a rear clamping area 502 and a rear release area 504. The rear clamping area 502 is arranged near the outer edge of the rear guide plate 5 relative to the rear release area 504, and the rear clamping area 502 and the rear release area 504 are smoothly connected through the rear transition area 503. The fixed clamp 801 is fixed on the spoon clamp plate, and the positioning rod 804 on the dynamic clamp 802 can move along the front special-shaped annular guide rail 401 and the rear special-shaped annular guide rail 501, and the filling and discharging of the spoon clamp 8 are controlled by the special-shaped annular guide rails.

[0049] Four scoop clamps 8 are arranged between two adjacent seed collecting partitions 901 of the scoop clamp plate, and the scoop clamp plate and the seeding wheel 9 rotate synchronously. When the scoop clamp plate rotates to the vicinity of the seed collecting channel 102 at the lower part of the seed separation chamber shell 1, the scoop clamp 8 discharges seeds, and the corn seeds enter the seeding wheel 9 through the seed collecting channel 102 and the seed collecting hole 301. Four corn seeds can be collected in each seed collecting partition 901, and the seeding wheel 9 continues to rotate to above the seeding channel 201 at the lower part of the seed collecting chamber shell 2. Since an arc-shaped notch for discharging seeds is provided at the connecting position between the circumferential side surface of the seed collecting chamber shell 2 and the seeding channel 201, the elastic baffle 10 loses its resistance and bounces off away from the end of the seed collecting partition 901, and the corn seeds are discharged from the end of the elastic baffle 10 by gravity, and four corn seeds are sown.

[0050] In the present embodiment, a hollow seeding wheel shaft 902 is provided on the side of the seeding wheel 9 away from the scoop clamp 8, and the seeding wheel shaft 902 is rotatably connected to the seed collecting chamber shell 2; one end of the scoop clamp shaft 11 passes through the seeding wheel shaft 902 and is rotatably connected to the seeding wheel shaft 902, and the other end is rotatably connected to the seed separating chamber shell 1, and a synchronous locking screw 12 is also installed on the seeding wheel shaft 902.

[0051] The seeding device is also provided with a speed change mechanism 13, which includes a scoop chuck gear 14, a seeding wheel gear 15, a scoop chuck speed change gear 16, a seeding wheel speed change gear 17 and a transmission shaft 18. The scoop chuck gear 14 is mounted on the scoop chuck shaft 11, the seeding wheel gear 15 is mounted on the seeding wheel shaft 902, the scoop chuck speed change gear 16 and the seeding wheel speed change gear 17 are mounted on the transmission shaft 18, the scoop chuck gear 14 is meshed with the scoop chuck speed change gear 16, and the seeding wheel gear 15 is meshed with the seeding wheel speed change gear 17.

[0052] When the seeding device is operating with four seeds in one hole, the synchronous locking screw 12 of the seeding wheel shaft 902 is locked, and at the same time, the power mechanism is connected to the scoop chuck shaft 11 through a coupling, the scoop chuck and the seeding wheel 9 rotate synchronously, and four corn seeds are collected in each seed collecting partition 901; when the seeding device is operating with five, six or more seeds in one hole, the synchronous locking screw 12 is loosened, and at the same time, the power mechanism is connected to the transmission shaft 18 through a coupling, and the reduction ratio of the scoop chuck speed gear 16 and the seeding wheel speed gear 17 is adjusted to achieve the effect of a faster rotation speed of the scoop chuck relative to the seeding wheel 9. In this way, five, six or more corn seeds can be collected in each seed collecting partition 901.

[0053] Other components and connection relationships are the same as those in the first specific implementation mode.

[0054] Specific implementation method three: Combination Figures 1 to 17 This embodiment is described. In this embodiment, the power mechanism is preferably a traction object (such as a tractor). The PLC accurately collects, analyzes and controls the working state of the seed meter, calculates the rotation speed of the seed meter and the sowing spacing, and then feeds back to the motor through the PLC in combination with the travel speed of the traction object (tractor). The motor controls the sowing speed of the spoon chuck, and then the speed of the traction object and the seeding wheel 9 are coordinated to form a hole spacing of 40-50cm. Encoders and sensors installed inside the seed meter are used to monitor data such as the driving distance, sowing area, number of holes, number of sowings and average number of sowings per mu.

[0055] Other components and connection relationships are the same as those in the first specific implementation mode.

[0056] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A spoon-clip type corn one-hole multi-grain precision seeding device, characterized by: The invention comprises a seed separation chamber shell (1), a seed collection chamber shell (2), a partition (3), a scoop clamp (8) and a seed discharge wheel (9); the seed separation chamber shell (1), the partition (3) and the seed collection chamber shell (2) are connected in sequence from front to back; the seed separation chamber shell (1) and the partition (3) form a seed separation chamber, and the partition (3) and the seed collection chamber shell (2) form a seed collection chamber; The seed separation chamber is provided with a front guide rail disc (4), a rear guide rail disc (5), a front spoon clamping disc (6) and a rear spoon clamping disc (7); a spoon clamp (8) is provided in front of the front spoon clamping disc (6) and the rear spoon clamping disc (7); and the seed collection chamber is provided with a seed row wheel (9).

2. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1 is characterized in that: The front guide plate (4) is fixedly connected to the inner wall of the seed separation chamber housing (1); the rear guide plate (5) is fixedly connected to the partition plate (3); the front spoon clamping plate (6) and the rear spoon clamping plate (7) are arranged between the front guide plate (4) and the rear guide plate (5); the front spoon clamping plate (6) and the rear spoon clamping plate (7) are mounted on a spoon clamping plate shaft (11); and the spoon clamping plate shaft (11) passes through the front guide plate (4), the rear guide plate (5) and the seeding wheel (9).

3. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1 is characterized in that: The front spoon chuck (6) is evenly provided with a plurality of front sliding grooves (601) along the circumference in the diameter direction, and each of the front sliding grooves (601) is provided with a front positioning groove (602); the rear spoon chuck (7) is evenly provided with a plurality of rear sliding grooves (701) along the circumference in the diameter direction, and each of the rear sliding grooves (701) is provided with a rear positioning groove (702); the front spoon chuck (6) and the rear spoon chuck (7) are buckled together to form a spoon chuck; The spoon clamp (8) comprises a fixed clamp (801) and a movable clamp (802), a sliding rod (803) is provided at the end of the movable clamp (802), two positioning rods (804) are provided on the sliding rod (803), the sliding rod (803) is slidably connected to the front sliding groove (601) and the rear sliding groove (701), and the positioning rods (804) pass through the front positioning groove (602) and the rear positioning groove (702).

4. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1, characterized in that: The front guide rail disc (4) is provided with a front special-shaped annular guide rail (401), and the rear guide rail disc (5) is provided with a rear special-shaped annular guide rail (501). Positioning rods (804) on both sides of the movable clamp (802) extend into the front special-shaped annular guide rail (401) and the rear special-shaped annular guide rail (501) respectively, and the positioning rods (804) can move along the front special-shaped annular guide rail (401) and the rear special-shaped annular guide rail (501).

5. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 4 is characterized in that: The front special-shaped annular guide rail (401) comprises a front clamping area (402) and a front release area (404); the front clamping area (402) is arranged close to the outer edge of the front guide rail plate (4) relative to the front release area (404); the front clamping area (402) and the front release area (404) are smoothly connected via a front transition area (403); The rear special-shaped annular guide rail (501) comprises a rear clamping area (502) and a rear release area (504); the rear clamping area (502) is arranged close to the outer edge of the rear guide rail plate (5) relative to the rear release area (504); the rear clamping area (502) and the rear release area (504) are smoothly connected via a rear transition area (503).

6. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1, characterized in that: The seeding wheel (9) is evenly provided with a plurality of seed collecting partitions (901) along the circumference in the diameter direction, and the spoon clamp plate is provided with a plurality of spoon clamps (8) corresponding to two adjacent seed collecting partitions (901).

7. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 6 is characterized in that: An arc-shaped elastic baffle (10) is mounted on each of the seed collecting baffles (901); one end of the elastic baffle (10) is connected to the seed collecting baffle (901), and the other end is in contact with the circumferential side wall of the seed collecting chamber shell (2).

8. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1, characterized in that: The upper end of the seed separation chamber shell (1) is provided with a seed feeding channel (101), and the lower end is provided with a seed collecting channel (102); the partition plate (3) is provided with a seed collecting hole (301); and the seed collecting channel (102) and the seed collecting hole (301) are arranged correspondingly.

9. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1, characterized in that: A seed discharging channel (201) is provided at the lower end of the seed collecting chamber shell (2), an arc-shaped notch is provided at the connection position between the circumferential side surface of the seed collecting chamber shell (2) and the seed discharging channel (201), and the arc length P of the elastic baffle (10) is greater than twice the arc length R of the notch.

10. The spoon-clip type corn one-hole multi-grain precision seed metering device according to claim 1, characterized in that: A hollow seeding wheel shaft (902) is provided on the side of the seeding wheel (9) away from the scoop clamp (8), and the seeding wheel shaft (902) is rotatably connected to the seed collecting chamber housing (2); one end of the scoop clamp disc shaft (11) passes through the seeding wheel shaft (902) and is rotatably connected to the seeding wheel shaft (902), and the other end is rotatably connected to the seed dividing chamber housing (1), and a synchronous locking screw (12) is also installed on the seeding wheel shaft (902).

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