Seed-metering device for rice breeding

Abstract

The utility model relates to a seed-metering device for rice breeding, and belongs to the technical field of rice planting. The seeder mainly comprises a frame, a front rotating shaft, a rear rotating shaft, a front walking wheel, a rear walking wheel, a supporting plate, a discharging barrel, a rotating roller, a seeding mechanism, a crank rocker mechanism, a ditching block, a soil covering plate and a handrail. Before sowing, a cultivator holds a handrail pushing device, a front walking wheel and a rear walking wheel to move the whole device to a sowing position, then rice seeds are placed in a discharging barrel, the cultivator pushes the device and a ditching block to achieve ditching, and the front walking wheel rotates to drive a crank rocker mechanism to rotate; the seeding mechanism is driven to uniformly discharge rice seeds, so that uniform seeding is realized, the seeding uniformity and stability are ensured, gaps among seedlings are not needed after seedling emergence, the labor intensity of workers is reduced, the soil covering plate is used for pushing soil on two sides into furrows after seeding is completed, soil covering is completed at one time, and subsequent soil covering operation is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of rice planting, and in particular relates to a seed metering device used for rice breeding. Background Art

[0002] Rice is one of the three major food crops in the world and plays a vital role in the world's food production. Rice is also one of China's main food crops. Field plot trials are often used in rice breeding. Rice plot trial breeding is an important method for breeding excellent varieties, and rice sowing operations are an important link in the entire trial breeding process.

[0003] At present, the sowing method in field trials still adopts the traditional manual sowing method. The growers need to turn the soil first, then sow the seeds manually, and finally cover the soil. The labor intensity is high and the sowing efficiency is low. In addition, the manual sowing of rice seeds is uneven and the seedlings are not neat, which can easily cause uneven density. The seedlings need to be re-sown after emergence, resulting in different emergence times and affecting the growth of rice. Summary of the invention

[0004] In order to overcome the problems of high labor intensity, low sowing efficiency and uneven sowing of rice seeds by manual sowing, the utility model provides a seed-metering device for rice breeding; the cultivator pushes the device, the furrowing block realizes furrowing, the front walking wheel rotates to drive the crank rocker mechanism to rotate, and then drives the sowing mechanism to evenly feed the rice seeds, thereby realizing uniform sowing, ensuring the uniformity and stability of sowing, and no need to supplement the seedlings after emergence, thereby reducing the labor intensity of manual sowing, and after sowing is completed, the soil covering plate pushes the soil on both sides into the furrow, and the soil covering is completed at one time, and no subsequent soil covering operation is required.

[0005] To achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a seed-seeding device for rice breeding mainly comprises a frame, a front rotating shaft, a rear rotating shaft, a front walking wheel, a rear walking wheel, a supporting plate, a feeding barrel, a rotating roller, a sowing mechanism, a crank rocker mechanism, a furrowing block, a covering plate, and an armrest, wherein the front rotating shaft and the rear rotating shaft can be rotatably mounted on the frame, the front walking wheel and the rear walking wheel are respectively mounted on the front rotating shaft and the rear rotating shaft, the supporting plate is mounted on the top of the frame by fastening bolts, a through hole is provided on the supporting plate, the feeding barrel is mounted on the top of the through hole, the rotating roller can be rotatably mounted on the frame and is located at the bottom of the supporting plate, the sowing mechanism is mounted on the rotating roller and is located at the bottom of the feeding barrel, the sowing mechanism is communicated with the feeding barrel, one end of the crank rocker mechanism is connected to the front rotating shaft, and the other end is connected to the rotating roller, the furrowing block and the covering plate are mounted on the bottom of the frame, the horizontal central axes of the furrowing block, the sowing mechanism and the covering plate are collinear, a supporting arm is provided at the top of the frame, and the armrest is detachably mounted on the supporting arm.

[0006] The sowing mechanism includes a feed trough, a seed tray, a discharge trough, a sleeve ring, and an inoculation groove. The feed trough is installed at the top of the seed tray, the discharge trough is installed at the bottom of the seed tray, the seed tray is installed at the bottom of the feed barrel through the feed trough, the roller passes through the seed tray, the sleeve ring is fixedly sleeved on the roller, and the inoculation grooves are installed on the sleeve ring at equal intervals.

[0007] The crank-rocker mechanism comprises a first crank, a second crank, a rocker and a connecting piece. The first crank is mounted on the front shaft, the second crank is mounted on the rotating roller, and the rocker is connected to the first crank at one end through the connecting piece and connected to the second crank at the other end.

[0008] The trenching block is in the shape of a triangular prism and can be detachably mounted on the vehicle frame.

[0009] The top end of the discharge barrel is provided with a sealing cover.

[0010] Beneficial effects of the utility model:

[0011] Before sowing, the cultivator pushes the device holding the handrail, and the front and rear wheels move the entire device to the sowing position. Then the rice seeds are placed in the feeding barrel, and the cultivator pushes the device, the furrowing block opens the furrow, and the rotation of the front wheel drives the crank rocker mechanism to rotate, which in turn drives the sowing mechanism to evenly feed the rice seeds, achieving uniform sowing and ensuring the uniformity and stability of sowing. There is no need to refill the seedlings after emergence, reducing the intensity of manual labor. After sowing is completed, the covering plate will push the soil on both sides into the furrow, and the soil covering is completed at one time, and no subsequent soil covering operation is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an isometric schematic diagram of the utility model.

[0013] Figure 2 This utility model is a three-dimensional schematic diagram Figure 1 .

[0014] Figure 3 This utility model is a three-dimensional schematic diagram Figure 2 .

[0015] Figure 4 It is a partial sectional schematic diagram of the utility model.

[0016] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

[0018] The utility model discloses a seeding device for rice breeding, which mainly comprises a frame 1, a front rotating shaft 2, a rear rotating shaft 3, a front walking wheel 4, a rear walking wheel 5, a support plate 6, a feeding barrel 7, a rotating roller 8, a sowing mechanism 9, a crank rocker mechanism 10, a ditching block 11, a soil covering plate 12, and a handrail 13. The front rotating shaft 2 and the rear rotating shaft 3 can be rotatably mounted on the frame 1, the front walking wheel 4 and the rear walking wheel 5 are respectively mounted on the front rotating shaft 2 and the rear rotating shaft 3, the support plate 6 is mounted on the top of the frame 1 by fastening bolts, and the support plate 6 is provided with a through hole, a discharge barrel 7 is installed at the top of the through hole, a roller 8 is rotatably installed on the frame 1 and is located at the bottom of the support plate 6, a sowing mechanism 9 is installed on the roller 8 and is located at the bottom of the discharge barrel 7, the sowing mechanism 9 is connected with the discharge barrel 7, one end of a crank rocker mechanism 10 is connected with the front shaft 2, and the other end is connected with the roller 8, a trenching block 11 and a covering plate 12 are installed at the bottom of the frame 1, and the horizontal central axes of the trenching block 11, the sowing mechanism 9 and the covering plate 12 are in a collinear line, a support arm 14 is provided at the top of the frame 1, and a handrail 13 is detachably installed on the support arm 14.

[0019] The cultivator pushes the device, the trenching block 11 realizes trenching, the front walking wheel 4 rotates, driving the front shaft 2 to rotate, and then driving the first crank 101 to rotate. The rotation of the first crank 101 drives the rocker 103 to swing, realizing the rotation of the second crank 102 and the roller 8, and the rice seeds in the discharge barrel 7 fall from the discharge trough 91 to the inoculation groove 95 in the seed plate 92. The rotation of the roller 8 drives the ring 94 and the inoculation groove 95 to rotate, and finally the rice seeds in the inoculation groove 95 are discharged from the discharge trough 93, realizing the uniform sowing of rice seeds, ensuring the uniformity and stability of sowing, and no need to supplement the seedlings after emergence, reducing the intensity of manual labor. After sowing is completed, the covering plate 12 pushes the soil on both sides into the ditch, and the soil covering is completed at one time, and no subsequent soil covering operation is required.

[0020] like Figure 1 As shown, the crank-rocker mechanism 10 comprises a first crank 101, a second crank 102, a rocker 103, and a connecting member 104. The first crank 101 is mounted on the front shaft 2, the second crank 102 is mounted on the roller 8, and the rocker 103 is connected to the first crank 101 at one end through the connecting member 104, and is connected to the second crank 102 at the other end; Figure 5As shown, the sowing mechanism 9 includes a feed trough 91, a seed tray 92, a discharge trough 93, a collar 94, and an inoculation groove 95. The feed trough 91 is installed at the top of the seed tray 92, the discharge trough 93 is installed at the bottom of the seed tray 92, the seed tray 92 is installed at the bottom of the feed barrel 7 through the feed trough 91, the roller 8 passes through the seed tray 92, the collar 94 is fixedly sleeved on the roller 8, and the inoculation grooves 95 are installed on the collar 94 at equal intervals; the front walking wheel 4 rotates, driving the front shaft 2 to rotate, and then driving the first crank 101 to rotate, the first crank 101 rotates to drive the rocker 103 to swing, so that the second crank 102 and the roller 8 rotate, and the rice seeds in the feed barrel 7 fall from the feed trough 91 to the inoculation groove 95 in the seed tray 92, the roller 8 rotates to drive the collar 94 and the inoculation groove 95 to rotate, and finally the rice seeds in the inoculation groove 95 are discharged from the discharge trough 93, so as to realize the uniform sowing of rice seeds.

[0021] like Figure 2 , Figure 3 As shown, the trenching block 11 is in the shape of a triangular prism and can be detachably mounted on the vehicle frame 1. After long-term use, when the trenching block 11 is worn or damaged, it can be replaced, which is convenient and quick, and prolongs the service life of the device.

[0022] like Figure 1 , Figure 3 As shown, a sealing cover 71 is provided at the top of the lower barrel 7 to prevent foreign matter from entering the lower barrel 7 and contaminating the rice seeds during the sowing process.

[0023] Working process:

[0024] Before sowing, the cultivator holds the handrail 13 to push the device, and the front walking wheel 4 and the rear walking wheel 5 move the entire device to the sowing position. The provision of the front walking wheel 4 and the rear walking wheel 5 increases the practicality and convenience of the device, and then the rice seeds are placed in the lower barrel 7. A sealing cover 71 is provided on the top of the lower barrel 7 to prevent debris from entering the lower barrel 7 during sowing and contaminating the rice seeds. The cultivator pushes the device, the trenching block 11 realizes trenching, the front walking wheel 4 rotates, driving the front shaft 2 to rotate, and then driving the first crank 101 to rotate. The rotation of the first crank 101 drives the rocker 103 to swing, realizing the second crank 102 and the rotating shaft. The roller 8 rotates, and the rice seeds in the discharge barrel 7 fall from the discharge trough 91 to the inoculation groove 95 in the seed plate 92. The rotation of the roller 8 drives the ring 94 and the inoculation groove 95 to rotate. Finally, the rice seeds in the inoculation groove 95 are discharged from the discharge trough 93, so that the rice seeds are evenly sown, and the uniformity and stability of sowing are ensured. There is no need to supplement the seedlings after germination, and the labor intensity is reduced. After sowing, the covering plate 12 pushes the soil on both sides into the ditch, and the covering is completed at one time without subsequent covering operation. After long-term use, when the ditching block 11 is worn or damaged, it can be replaced, which is convenient and quick, and prolongs the service life of the device.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A seed meter for rice breeding, characterized in that: The seed metering device for rice breeding comprises a frame (1), a front rotating shaft (2), a rear rotating shaft (3), a front running wheel (4), a rear running wheel (5), a support plate (6), a feeding barrel (7), a rotating roller (8), a sowing mechanism (9), a crank rocker mechanism (10), a furrowing block (11), a soil covering plate (12), and a handrail (13). The front rotating shaft (2) and the rear rotating shaft (3) are rotatably mounted on the frame (1), the front running wheel (4) and the rear running wheel (5) are respectively mounted on the front rotating shaft (2) and the rear rotating shaft (3), the support plate (6) is mounted on the top of the frame (1) by means of fastening bolts, and a through hole is provided on the support plate (6) for feeding. The cylinder (7) is mounted at the top of the through hole, the roller (8) is rotatably mounted on the frame (1) and is located at the bottom of the support plate (6), the sowing mechanism (9) is mounted on the roller (8) and is located at the bottom of the lower material cylinder (7), the sowing mechanism (9) is connected to the lower material cylinder (7), one end of the crank rocker mechanism (10) is connected to the front shaft (2), and the other end is connected to the roller (8), the furrowing block (11) and the covering plate (12) are mounted at the bottom of the frame (1), the horizontal central axes of the furrowing block (11), the sowing mechanism (9) and the covering plate (12) are collinear, and a support arm (14) is arranged at the top of the frame (1), and the handrail (13) is detachably mounted on the support arm (14).

2. A seed metering device for rice breeding as claimed in claim 1, characterized in that: The sowing mechanism (9) comprises a feed trough (91), a seed tray (92), a discharge trough (93), a collar (94), and an inoculation groove (95). The feed trough (91) is mounted on the top of the seed tray (92), the discharge trough (93) is mounted on the bottom of the seed tray (92), the seed tray (92) is mounted on the bottom of the feed barrel (7) through the feed trough (91), the roller (8) passes through the seed tray (92), the collar (94) is fixedly sleeved on the roller (8), and the inoculation grooves (95) are mounted on the collar (94) at equal intervals.

3. A seed metering device for rice breeding as claimed in claim 1 or 2, characterized in that: The crank-rocker mechanism (10) comprises a first crank (101), a second crank (102), a rocker (103), and a connecting piece (104); the first crank (101) is mounted on the front rotating shaft (2); the second crank (102) is mounted on the rotating roller (8); one end of the rocker (103) is connected to the first crank (101) via the connecting piece (104); and the other end is connected to the second crank (102).

4. A seed metering device for rice breeding as claimed in claim 1 or 2, characterized in that: The trenching block (11) is in the shape of a triangular prism, and the trenching block (11) can be detachably mounted on the vehicle frame (1).

5. A seed metering device for rice breeding as claimed in claim 1 or 2, characterized in that: The top end of the discharge barrel (7) is provided with a sealing cover (71).

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