Agricultural planting seeding device

Abstract

An agricultural planting sowing device comprises a machine body, a set of sowing units and a seed storage device are connected to the machine body, a seed pushing device is connected between the sowing units and the seed storage device, each sowing unit comprises a chain wheel frame, a set of seeding devices are connected to the chain wheel frame through a chain, and each seeding device comprises a seeding box and a bottom plate connected with the seeding box in a sliding mode. The seed storage device comprises a seed storage frame and a seed storage plate connected with the seed storage frame in a sliding mode, the seed pushing device comprises a seed pushing frame, the seed pushing frame is connected with a ratchet wheel frame and a driving seat in a sliding mode, the ratchet wheel frame and the driving seat are connected with the seed pushing frame through springs, and the seed pushing frame is connected with the driving seat in a sliding mode. The seed teeth are always kept in an upward state when being sown, so that the planting quality of the potatoes is high, the plant spacing is accurate, and the seed teeth are not damaged.

Description

Technical Field

[0001] The present invention relates to the field of mechanized agricultural machinery and tools, and in particular to an agricultural planting and sowing device. Background Art

[0002] Potato slice sowing is an important method of agricultural planting and sowing. Potato slice sowing needs to be placed with the buds facing upwards. Placing potato slice sowing with the buds facing upwards is based on plant growth characteristics and considerations of increasing yields. In actual operation, growers can reasonably choose the planting method according to regional climate conditions and cultivation goals to obtain the best planting effect. Most existing potato planters use chain-type sowing mechanisms, which cannot meet the requirements of placing the buds facing upwards. In addition, chain-type planters have problems such as inaccurate plant spacing and damage to the seed teeth. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides an agricultural planting and sowing device which places the seed teeth upward during potato agricultural planting and sowing, and keeps the seed teeth facing upward during sowing, so that the potato planting quality is high, the plant spacing is accurate, and the seed teeth are not damaged.

[0004] The purpose of the present invention is to be achieved through the following technical solutions: An agricultural planting and sowing device comprises a machine body, a group of sowing units and a seed storage device are connected to the machine body, a seed pushing device is connected between the sowing unit and the seed storage device, the sowing unit comprises a sprocket frame, a group of seed placement devices are connected to the sprocket frame through a chain, each seed placement device comprises a seed placement box and a bottom plate slidably connected to the seed placement box, the seed storage device comprises a seed storage frame and a seed storage plate slidably connected to the seed storage frame, the seed pushing device comprises a seed pushing frame, the seed pushing frame is slidably connected to a ratchet frame and a driving seat, the ratchet frame and the driving seat are respectively connected to the seed pushing frame through springs, and the seed pushing frame and the driving seat are slidably connected.

[0005] The machine body includes a trolley, on which a group of mounting grooves are evenly distributed, each mounting groove is provided with a group of sowing units, positioning grooves are provided between adjacent mounting grooves, each positioning groove is connected to a seed storage device, the upper part of the trolley is rotatably connected to shaft No. 1, the middle of the trolley is fixedly connected to shaft No. 2, and the shaft No. 2 is connected with a group of plowshares corresponding to the sowing units.

[0006] The seed box is a hollow frame structure, a seed box bottom slide groove is provided at the lower part of the seed box, a seed box waist groove is provided on the front and rear sides of the seed box, a bottom plate is slidably connected to the seed box bottom slide groove, bottom plate pins on the front and rear sides of the bottom plate are slidably connected to the seed box waist groove, a No. 1 spring is provided between the seed box and the bottom plate, and both sides of the No. 1 spring are respectively fixedly connected to the seed box spring plate on one side of the seed box waist groove and the bottom plate spring plate on one side of the bottom plate.

[0007] The rear side of the sprocket frame is provided with four sprocket shaft holes, each sprocket shaft hole is rotatably connected to a sprocket, the outer sides of the four sprockets are rotatably connected to a chain, the side of the sprocket frame is fixed to the inner side of the mounting groove, and one of the sprockets is connected to the first shaft through a belt and a pulley.

[0008] The front side of the sprocket frame is provided with three mutually staggered guide grooves, the rear side of the seed box is provided with a support plate, the lower part of the rear side of the support plate is provided with a connecting pin, and the upper part of the rear side of the support plate is provided with two symmetrical guide pins. A group of seeding devices are evenly distributed on the chain, and the distance between adjacent seeding devices is equal to the plant spacing of potato sowing. The connecting pin and the guide pin of each seeding box are slidably connected to the three guide grooves respectively, and the connecting pin of each seeding box is fixed on a link of the chain.

[0009] One side of the lower part of the seed storage rack is fixedly connected to the No. 1 cylinder. When the seed placing device passes through the No. 1 cylinder, the No. 1 cylinder extends a rod to align with the side of the bottom plate in the middle of the passing seed placing device.

[0010] The seed storage rack is provided with a seed storage rack limit block at the bottom, and the seed storage rack limit block is installed in the positioning groove on the upper part of the trolley. The seed storage rack is a box-shaped structure with seed storage rack side edges on both sides, and each seed storage rack side edge has a seed storage rack waist groove. A group of seed storage grooves for accommodating potato seeds are evenly distributed in the middle of the seed storage plate, and two symmetrical seed storage plate pins are provided on both sides of the seed storage plate. The seed storage plate is slidably connected to the inner side of the seed storage rack, and the seed storage plate pins are slidably connected to the corresponding seed storage rack waist grooves. When the seed storage plate is on the leftmost side of the seed storage rack, the seed storage groove and the bottom of the seed storage plate form a closed space, and the seeds will not fall off. When the seed storage plate moves to the right and the lower part of the seed storage grooves in the right row is suspended in the air, the seeds in the seed storage grooves fall from the bottom plate pins.

[0011] Beneficial effects: After the potato seed tubers are sliced, they are directly placed in the seed storage groove on the upper part of the seed storage plate, with the potato buds placed upwards, and the potato tubers fall into the seed placement device and remain facing upwards during the transfer process of the seed placement device, which ensures both the planting quality of the potato seed tubers and the protection of the potato tubers from damage. The potato tubers are placed in the seed placement device, and the speed at which the seed placement device moves will not cause the potato tubers to flip or fall, thereby improving the potato planting efficiency. The seed pushing device pushes the seed tubers in a row of seed storage grooves into the seed placement device each time, and the distance between adjacent seed storage grooves in the same row is equal to the distance between adjacent seed placement devices, and the distance between adjacent seed placement devices is equal to the potato plant spacing. When the seed placement device drives the potato tubers to move to the lower part, the No. 1 cylinder is activated, and the potato buds quickly fall into the planting ditch, thereby ensuring the plant spacing of the potato planting, and avoiding the problem of potato buds drifting when falling and affecting the plant spacing during transmission chain planting. It can speed up germination, increase uniformity of seedling emergence, improve the growth environment and reduce the risk of diseases and pests, thus contributing to the healthy growth and high yield of potatoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the agricultural planting and sowing device described in the present invention.

[0013] Figure 2 It is a schematic diagram of the rear structure of the agricultural planting and sowing device described in the present invention.

[0014] Figure 3 The present invention is a schematic diagram of the connection structure of the sowing unit, the seed storage unit and the seed pushing device.

[0015] Figure 4 This is a schematic diagram of the connection structure of the seed storage unit and the seed pushing device described in the present invention.

[0016] Figure 5 The figure is a schematic diagram of the machine structure of the present invention.

[0017] Figure 6 This is a schematic diagram of the structure of the sowing unit described in the present invention.

[0018] Figure 7 It is a schematic diagram of the rear structure of the sowing unit described in the present invention.

[0019] Figure 8 This is a schematic diagram of the connection structure of the next device described in the present invention.

[0020] Fig. 9 The figure is a schematic diagram of the sprocket frame structure of the present invention.

[0021] Fig.10 This is a schematic diagram of the front structure of the sprocket frame described in the present invention.

[0022] Fig.11 It is a schematic diagram of the rear structure of the sprocket frame described in the present invention.

[0023] Fig.12 It is a schematic diagram of the structure of the next device described in the present invention.

[0024] Fig.13 It is a schematic diagram of the structure of the seed box described in the present invention.

[0025] Fig.14 This is a schematic diagram of the bottom plate structure of the present invention.

[0026] Fig.15 It is a schematic diagram of the structure of the seed storage device described in the present invention.

[0027] Fig.16 This is a schematic diagram of the seed storage rack structure of the present invention.

[0028] Fig.17 It is a schematic diagram of the seed storage plate structure of the present invention.

[0029] Fig.18It is a schematic diagram of the structure of the seed pushing device described in the present invention.

[0030] Fig.19 It is a schematic diagram of the rear structure of the seed pushing device described in the present invention.

[0031] Fig. 20 It is a structural schematic diagram of the seed pushing rack described in the present invention.

[0032] Fig.21 The figure is a schematic diagram of the ratchet frame structure of the present invention.

[0033] Fig. 22 It is a schematic diagram of the structure of the driving seat described in the present invention.

[0034] In the figure: 100, machine body; 110, trolley; 111, mounting slot; 112, positioning slot; 120, shaft No. 1; 130, shaft No. 2; 140, plow; 200, sowing unit; 210, sprocket frame; 211, guide slot; 212, bearing frame; 213, sprocket shaft hole; 220, sprocket; 230, chain; 240, cylinder No. 1; 300, seeding device; 310, seeding box; 311, seeding box bottom slide slot; 312, seeding box waist slot; 313, support plate; 314, connecting pin; 315, guide pin; 316, seeding box spring plate; 320, bottom plate; 321, bottom plate pin; 322, bottom plate spring plate; 330, spring No. 1; 400, seed storage device; 4 10. Seed storage rack; 411. Side of seed storage rack; 412. Waist groove of seed storage rack; 414. Limit block of seed storage rack; 420. Seed storage plate; 421. Seed storage groove; 422. Seed storage plate pin; 500. Seed pushing device; 510. Seed pushing rack; 511. Guide block of seed pushing rack; 512. Guide hole of seed pushing rack; 513. Limit plate of seed pushing rack; 520. Ratchet rack; 521. Ratchet; 522. Ratchet inclined surface; 523. Ratchet straight surface; 524. Ratchet waist groove; 525. Spring plate; 530. Drive seat; 531. Drive seat groove; 532. Drive seat guide shaft; 533. Drive seat limit plate; 540. No. 2 spring; 550. No. 3 spring; 560. No. 2 cylinder; 570. Connecting bolt. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below according to the accompanying drawings and embodiments: refer to Figures 1 to 4, an agricultural planting and sowing device, includes a body 100, a group of sowing units 200 and a seed storage device 400 are connected to the body 100, a seed pushing device 500 is connected between the sowing unit 200 and the seed storage device 400, the sowing unit 200 includes a sprocket frame 210, a group of seed placement devices 300 are connected to the sprocket frame 210 through a chain, each seed placement device 300 includes a seed placement box 310 and a bottom plate 320 slidably connected to the seed placement box 310, the seed storage device 400 includes a seed storage frame 410 and a seed storage plate 420 slidably connected to the seed storage frame 410, the seed pushing device 500 includes a seed pushing frame 510, the seed pushing frame 510 is slidably connected to a ratchet frame 520 and a driving seat 530, the ratchet frame 520 and the driving seat 530 are respectively connected to the seed pushing frame 510 through springs, and the seed pushing frame 510 and the driving seat 530 are slidably connected.

[0036] refer to Figure 5 The machine body 100 includes a trolley 110, on which a group of mounting grooves 111 are evenly distributed, each mounting groove 111 is provided with a group of sowing units 200, and positioning grooves 112 are provided between adjacent mounting grooves 111, each positioning groove 112 is connected to a seed storage device 400, the upper part of the trolley 110 is rotatably connected to the first shaft 120, the middle of the trolley 110 is fixedly connected to the second shaft 130, and the second shaft 130 is connected to a group of plowshares 140 corresponding to the sowing units 200.

[0037] refer to Figure 12 to Figure 14 The seed box 310 is a hollow frame structure, a seed box bottom slide groove 311 is provided at the lower part of the seed box 310, a seed box waist groove 312 is provided on the front and rear sides of the seed box 310, a bottom plate 320 is slidably connected to the seed box bottom slide groove 311, and bottom plate pins 321 on the front and rear sides of the bottom plate 320 are slidably connected to the seed box waist groove 312, and a No. 1 spring 330 is provided between the seed box 310 and the bottom plate 320, and the two sides of the No. 1 spring 330 are respectively fixedly connected to the seed box spring plate 316 on one side of the seed box waist groove 312 and the bottom plate spring plate 322 on one side of the bottom plate 320.

[0038] refer to Figures 6 to 12 The rear side of the sprocket frame 210 is provided with four sprocket shaft holes 213, each sprocket shaft hole 213 is rotatably connected to a sprocket 220, and the outer sides of the four sprockets 220 are rotatably connected to a chain 230. The side of the sprocket frame 210 is fixed to the inner side of the mounting groove 111, and one of the sprockets 220 is connected to the first shaft 120 through a belt and a pulley.

[0039] refer to Figures 6 to 12The front side of the sprocket frame 210 is provided with three mutually staggered guide grooves 211, the rear side of the seed box 310 is provided with a support plate 313, the lower part of the rear side of the support plate 313 is provided with a connecting pin 314, and the upper part of the rear side of the support plate 313 is provided with two symmetrical guide pins 315. A group of seeding devices 300 are evenly distributed on the chain 230, and the distance between adjacent seeding devices 300 is equal to the spacing of potato sowing. The connecting pin 314 and the guide pin 315 of each seed box 310 are respectively slidably connected to the three guide grooves 211, and the connecting pin 314 of each seed box 310 is fixed on one link of the chain 230.

[0040] refer to Figure 7 The lower side of the seed storage rack 410 is fixedly connected to the No. 1 cylinder 240. When the seed placement device 300 passes through the No. 1 cylinder 240, the No. 1 cylinder 240 extends a rod to align with the side of the bottom plate 320 in the middle of the seed placement device 300. When the No. 1 shaft 120 rotates, the belt and pulley drive the mutually connected sprockets 220 to rotate. The rotation of the sprocket 220 drives the chain 230 to rotate around the four sprockets 220. The rotation of the sprocket 220 drives the seed placement device 300 to move together. Due to the guiding effect of the guide groove 211, each seed placement device 300 always maintains an upward posture when moving. Prevent potatoes from being planted too shallowly or in the wrong direction, resulting in exposed potatoes, green heads, and exposed underground runners that cannot form potatoes.

[0041] refer to Figure 15 to Figure 17 The seed rack 410 has a seed rack limit block 414 at the bottom, and the seed rack limit block 414 is installed in the positioning groove 112 on the upper part of the trolley 110. The seed rack 410 is a box-shaped structure with seed rack side edges 411 on both sides, and each seed rack side edge 411 has a seed rack waist groove 412 on the side. A group of seed storage grooves 421 for accommodating potato seeds are evenly distributed in the middle of the seed storage plate 420. Two symmetrical seed storage plate pins 422 are provided on both sides of the seed storage plate 420. The seed storage plate 420 is slidably connected to the inner side of the seed storage rack 410, and the seed storage plate pins 422 are slidably connected to the corresponding seed storage rack waist groove 412. When the seed storage plate 420 is at the leftmost side of the seed storage rack 410, the seed storage groove 421 and the bottom of the seed storage plate 420 form a closed space, and the seed teeth will not fall. When the seed storage plate 420 moves to the right, and the lower part of the seed storage groove 421 in the right row is suspended, the seed teeth in the seed storage groove 421 fall from the bottom plate pin 321. The distance between adjacent seed storage grooves 421 in each row of seed storage grooves 421 of the seed storage plate 420 is equal to the plant spacing. After the potato seed teeth are sliced, they are directly placed in the seed storage groove 421 on the upper part of the seed storage plate 420, and the potato buds are placed upwards, which not only ensures the planting quality of the potato seed teeth but also ensures that the potato teeth are not damaged, and at the same time improves the planting efficiency of potatoes. It can speed up the germination speed, improve the uniformity of seedling emergence, improve the growth environment and reduce the risk of pests and diseases, thereby contributing to the healthy growth and high yield of potatoes. Prevent the reduction of its fertilizer and water absorption capacity.

[0042] refer to Figure 18 to Figure 22 A seed pushing rack guide block 511 is provided on the front lower side of the seed pushing rack 510, a ratchet waist groove 524 is provided in the middle of the ratchet rack 520, the ratchet waist groove 524 is slidably connected to the seed pushing rack guide block 511, and a No. 2 spring 540 is provided between the seed pushing rack 510 and the ratchet rack 520, and the two sides of the No. 2 spring 540 are respectively fixedly connected to the spring plates 525 on the side of the seed pushing rack 510 and the side of the ratchet rack 520.

[0043] refer to Figure 18 to Figure 22 A seed pushing rack guide hole 512 is provided in the middle of the seed pushing rack 510, a seed pushing rack limit plate 513 is provided on the upper portion of the seed pushing rack 510, a drive seat guide shaft 532 is provided on the upper portion of the drive seat 530, a drive seat limit plate 533 is provided on the upper portion of the drive seat guide shaft 532, the drive seat 530 is slidably connected to the seed pushing rack guide hole 512, the drive seat guide shaft 532 is slidably connected to the seed pushing rack limit plate 513, when the drive seat 530 is in the lowermost position, the drive seat limit plate 533 is positioned on the end surface of the seed pushing rack limit plate 513, a No. 3 spring 550 is provided between the drive seat 530 and the seed pushing rack 510, the No. 3 spring 550 is sleeved on the outer side of the drive seat guide shaft 532, the upper portion of the No. 3 spring 550 is against the lower portion of the seed pushing rack limit plate 513, and the lower portion of the No. 3 spring 550 is against the lower end surface of the drive seat guide shaft 532.

[0044] refer to Figure 18 to Figure 22 The side of the seed pushing rack guide hole 512 of the seed pushing rack 510 is fixedly connected to the No. 2 cylinder 560, and the telescopic rod of the No. 2 cylinder 560 can lift the driving seat 530.

[0045] refer to Figure 18 to Figure 22A group of ratchets 521 are evenly distributed on the upper and lower sides of the ratchet frame 520, the upper ratchet 521 and the lower ratchet 521 are staggered, each ratchet 521 is composed of a ratchet inclined surface 522 and a ratchet straight surface 523, and a driving seat groove 531 is provided in the middle of the driving seat 530. The driving seat groove 531 is a wedge-shaped groove with inclined surfaces on the upper and lower sides. The inclination of the upper and lower inclined surfaces of the driving seat groove 531 is consistent with the inclination of the ratchet inclined surface 522. The driving seat groove 531 is slidably connected to the ratchet frame 520. The second cylinder 5 When the No. 60 is not in motion, under the action of the No. 3 spring 550, the driving seat 530 is at the lowest position. Under the action of the No. 2 spring 540, the ratchet face 523 of a ratchet 521 on the upper part of the ratchet frame 520 presses against the end face of the driving seat groove 531. When the No. 2 cylinder 560 is in motion, the driving seat 530 is lifted up, and the end face of the driving seat groove 531 loses contact with the ratchet face 523. The ratchet frame 520 moves in the direction opposite to the ratchet 521 under the action of the No. 2 spring 540. The ratchet frame 520 moves After that, the ratchet face 523 of the lower ratchet 521 will contact the end face of the lower part of the driving seat groove 531, and the ratchet frame 520 stops at the current position. The distance moved by the ratchet frame 520 is equal to the distance between the upper and lower two adjacent ratchet wheels 521. When the No. 2 cylinder 560 is reset, the driving seat 530 is reset under the action of the No. 3 spring 550. When the driving seat 530 is reset, the ratchet face 523 of the lower ratchet 521 loses contact with the end face of the driving seat groove 531, and the ratchet frame 520 is reset under the action of the No. 2 spring 540. Under the action, it moves in the direction opposite to the ratchet 521. After the drive seat 530 moves, the ratchet straight surface 523 of the upper ratchet 521 will contact the end surface of the lower part of the drive seat groove 531. The distance moved by the ratchet frame 520 is equal to the distance between the upper and lower ratchet wheels 521. When the No. 2 cylinder 560 is activated once, the ratchet frame 520 moves the distance between the two adjacent ratchet wheels 521 on the same plane, and when the No. 2 cylinder 560 is activated and reset, the ratchet frame 520 moves half the distance between the ratchet wheels 521 respectively.

[0046] The distance between two adjacent ratchets 521 on the same surface of the ratchet frame 520 is equal to the distance between two adjacent rows of seed storage grooves 421 on the seed storage plate 420.

[0047] refer to Figure 4 The lower part of each seed pushing frame 510 is fixed to the upper part of the sprocket frame 210, and a connecting bolt 570 is inserted into one side of each ratchet frame 520, and the connecting bolt 570 is sleeved on the outer side of the seed storage plate pin 422 of the corresponding seed storage plate 420.

[0048] A method for using an agricultural planting and sowing device includes the following steps: a first step, when using the device, the device is towed by a motor vehicle, the power of the motor vehicle is transmitted to the first shaft 120, potato seed teeth are sliced ​​and directly placed in the seed storage groove 421 on the upper part of the seed storage plate 420, and a seed storage device 400 filled with potato slices is placed on the device; a second step, a seed storage device 400 is placed in each positioning groove 112, and the seed storage rack limit block 414 at the lower part of each seed storage rack 410 is inserted into the positioning groove 112, and the position of the seed storage plate 420 of each seed storage device 400 on the seed storage rack 410 is adjusted, and the seed storage plate 420 is slightly pushed to the right so that the seed storage plate 420 is pushed to the right side ... pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled to the right side so that the seed storage plate 420 is pulled Half of the space at the bottom of the seed storage grooves 421 on the right side overlaps with 413. At this time, the lower half of the seed teeth in the seed storage grooves 421 on the far right is suspended in the air, and the seed teeth will not fall. Then, the connecting bolt 570 of each seed pushing device 500 is inserted into the seed storage plate pin 422 on the side of the corresponding seed storage plate 420, so that the seed pushing device 500 is connected to the seed storage device 400, and then the motor vehicle is allowed to tow the device forward. When the device moves forward, the front plow 140 first plows the sowing furrow underground. When the motor vehicle moves forward, the No. 1 shaft 120 drives the corresponding sprocket 220 and chain 230 of each seed storage device 400 to rotate through the belt and pulley. When the chain 230 rotates, it drives a The first and second seed placement devices 300 are moved together. When a group of empty seed placement devices 300 are aligned with a row of seed storage slots 421, the second cylinder 560 is activated, the drive seat 530 moves up, the ratchet frame 520 moves to the right, and the lower part of the rightmost row of seed storage slots 421 is aligned with a group of empty seed placement devices 300. The seed teeth fall from a row of seed storage slots 421 to the corresponding seed placement devices 300. Then the second cylinder 560 is reset, and the ratchet frame 520 is pushed to the right again. Half of the lower part of the seed storage slots 421 in the second row on the right is suspended in the air. When the lower part of the second row of seed storage slots 421 on the right is aligned with a group of empty seed placement devices 300 again, the second cylinder 560 is activated again, and the above actions are repeated. After all the seeds in the seed storage plates 420 are emptied, a new seed storage device 400 can be replaced. After the seeds fall into the seed placement device 300, the seed placement device 300 drives the seeds to rotate to the lower part of the lower sowing unit 200 along with the chain 230, and the No. 1 cylinder 240 is actuated. The No. 1 cylinder 240 extends a rod to push out the bottom plate 320 corresponding to the seed placement device 300. After the bottom plate 320 is pushed out, the seeds fall into the lower planting groove. After the No. 1 cylinder 240 is reset, the bottom plate 320 is reset under the action of the No. 1 spring 330. When each seed placement device 300 passes through the No. 1 cylinder 240, the No. 1 cylinder 240 will be actuated once, so that the potato seeds are evenly sown in the soil.

[0049] After the potato seed tubers are sliced, they are directly placed in the seed storage groove 421 on the upper part of the seed storage plate 420, with the potato buds facing upward. The potato tubers fall into the seed placement device 300 and remain facing upward during the transfer process of the seed placement device 300, which ensures the planting quality of the potato seed tubers and ensures that the potato tubers are not damaged. The potato tubers are placed in the seed placement device 300, and the speed of the movement of the seed placement device 300 will not cause the potato tubers to flip or fall, which can improve the planting efficiency of potatoes. The pushing device 500 is used for each The seed tubes in a row of seed storage grooves 421 are pushed into the seed placement device 300 at a time. The distance between adjacent seed storage grooves 421 in the same row is equal to the distance between adjacent seed placement devices 300, and the distance between adjacent seed placement devices 300 is equal to the potato plant spacing. When the potato tubers are moved to the lower part by the seed placement device 300, the No. 1 cylinder 240 is actuated, and the potato sprouts quickly fall into the planting ditch, so that the potato planting plant spacing is guaranteed, avoiding the problem of potato sprouts drifting when falling and affecting the plant spacing during transmission chain planting.

Claims

1. An agricultural planting and sowing device, characterized in that The invention comprises a machine body (100), a group of sowing units (200) and a seed storage device (400) are connected to the machine body (100), a seed pushing device (500) is connected between the sowing unit (200) and the seed storage device (400), the sowing unit (200) comprises a sprocket frame (210), a group of seed placement devices (300) are connected to the sprocket frame (210) via a chain, and each seed placement device (300) comprises a seed placement box (310) and a bottom portion slidably connected to the seed placement box (310). The seed storage device (400) comprises a seed storage frame (410) and a seed storage plate (420) slidably connected to the seed storage frame (410); the seed pushing device (500) comprises a seed pushing frame (510); the seed pushing frame (510) is slidably connected to a ratchet frame (520) and a drive seat (530); the ratchet frame (520) and the drive seat (530) are respectively connected to the seed pushing frame (510) through springs; and the seed pushing frame (510) and the drive seat (530) are slidably connected.

2. The agricultural planting and sowing device according to claim 1, characterized in that The machine body (100) comprises a trolley (110), a group of mounting grooves (111) are evenly distributed on the trolley (110), a group of sowing units (200) are arranged inside each mounting groove (111), positioning grooves (112) are arranged between adjacent mounting grooves (111), each positioning groove (112) is connected to a seed storage device (400), the upper part of the trolley (110) is rotatably connected to a first shaft (120), the middle of the trolley (110) is fixedly connected to a second shaft (130), and a group of plowshares (140) corresponding to the sowing units (200) are connected to the second shaft (130).

3. The agricultural planting and sowing device according to claim 1 is characterized in that A seed box bottom slide groove (311) is provided at the lower part of the seed box (310), a seed box waist groove (312) is provided at the front and rear sides of the seed box (310), the bottom plate (320) is slidably connected to the seed box bottom slide groove (311), the bottom plate pins (321) at the front and rear sides of the bottom plate (320) are slidably connected to the seed box waist groove (312), a first spring (330) is provided between the seed box (310) and the bottom plate (320), and the two sides of the first spring (330) are respectively fixedly connected to a seed box spring plate (316) at one side of the seed box waist groove (312) and a bottom plate spring plate (322) at one side of the bottom plate (320).

4. The agricultural planting and sowing device according to claim 1, characterized in that The sprocket frame (210) is provided with four sprocket shaft holes (213) on the rear side, each sprocket shaft hole (213) is rotatably connected to a sprocket (220), and the outer sides of the four sprockets (220) are rotatably connected to a chain (230); the side of the sprocket frame (210) is fixed to the inner side of the mounting groove (111), and the sprocket (220) is connected to the first shaft (120) via a belt and a pulley; the front side of the sprocket frame (210) is provided with three mutually staggered guide grooves (211); the rear side of the seed box (310) is provided with a support plate (313), and the lower part of the rear side of the support plate (313) is provided with a connecting pin (31 4), two symmetrical guide pins (315) are provided on the upper rear side of the support plate (313), a group of seed placement devices (300) are evenly distributed on the chain (230), the distance between adjacent seed placement devices (300) is equal to the spacing between potato sowing plants, the connecting pin (314) and the guide pin (315) of each seed placement box (310) are slidably connected to the three guide grooves (211) respectively, and the connecting pin (314) of each seed placement box (310) is fixed on a link of the chain (230); one side of the lower part of the seed storage rack (410) is fixedly connected to the No. 1 cylinder (240).

5. The agricultural planting and sowing device according to claim 1, characterized in that The seed storage rack (410) has a seed storage rack limit block (414) at the bottom, and the seed storage rack limit block (414) is installed in the positioning groove (112) on the upper part of the trolley (110). The seed storage rack (410) is a box-shaped structure with seed storage rack side edges (411) on both sides. Each seed storage rack side edge (411) has a seed storage rack waist groove (412) on the side. A group of seed storage grooves (421) for accommodating potato seed teeth are evenly distributed in the middle of the seed storage plate (420). Two symmetrical seed storage plate pins (422) are provided on both sides of the seed storage plate (420). The seed storage plate (420) is slidably connected to the inner side of the seed storage rack (410), and the seed storage plate pins (422) are slidably connected to the corresponding seed storage rack waist groove (412). When the seed storage plate (420) is at the leftmost side of the seed storage rack (410), the seed storage slots (421) and the bottom of the seed storage plate (420) form a closed space, and the seed teeth will not fall off. When the seed storage plate (420) moves to the right and the lower part of the seed storage slots (421) in the right row is suspended in the air, the seed teeth in the seed storage slots (421) fall from the bottom plate pins (321); the distance between adjacent seed storage slots (421) in each row of seed storage slots (421) of the seed storage plate (420) is equal to the plant spacing.

6. The agricultural planting and sowing device according to claim 1, characterized in that A seed pushing frame guide block (511) is provided at the front side of the lower part of the seed pushing frame (510), a ratchet waist groove (524) is provided in the middle of the ratchet frame (520), the ratchet waist groove (524) is slidably connected to the seed pushing frame guide block (511), a second spring (540) is provided between the seed pushing frame (510) and the ratchet frame (520), and two sides of the second spring (540) are respectively fixedly connected to spring plates (525) on the side of the seed pushing frame (510) and one side of the ratchet frame (520).

7. The agricultural planting and sowing device according to claim 1, characterized in that The seed pushing frame (510) is provided with a seed pushing frame guide hole (512) in the middle, a seed pushing frame limit plate (513) is provided on the upper part of the seed pushing frame (510), a drive seat guide shaft (532) is provided on the upper part of the drive seat (530), a drive seat limit plate (533) is provided on the upper part of the drive seat guide shaft (532), the drive seat (530) is slidably connected to the seed pushing frame guide hole (512), the drive seat guide shaft (532) is slidably connected to the seed pushing frame limit plate (513), and when the drive seat (530) is at the lowest position, the drive seat limit plate (533) is positioned at the seed pushing frame. A third spring (550) is provided between the drive seat (530) and the seed pushing frame (510) at the end surface of the frame limit plate (513), the drive seat (530) and the seed pushing frame (510), the third spring (550) is sleeved on the outside of the drive seat guide shaft (532), the upper part of the third spring (550) abuts against the lower part of the seed pushing frame limit plate (513), and the lower part of the third spring (550) abuts against the lower end surface of the drive seat guide shaft (532); the side of the seed pushing frame guide hole (512) of the seed pushing frame (510) is fixedly connected to the second cylinder (560), and the telescopic rod of the second cylinder (560) can lift the drive seat (530).

8. The agricultural planting and sowing device according to claim 1, characterized in that A group of ratchets (521) are evenly distributed on the upper and lower sides of the ratchet frame (520), the upper ratchet (521) and the lower ratchet (521) are staggered, each ratchet (521) is composed of a ratchet inclined surface (522) and a ratchet straight surface (523), the middle of the drive seat (530) is provided with a drive seat groove (531), the drive seat groove (531) is a wedge-shaped groove with inclined surfaces on the upper and lower sides, the inclination of the upper and lower inclined surfaces of the drive seat groove (531) is consistent with the inclination of the ratchet inclined surface (522), the drive seat groove (531) is slidably connected to the ratchet frame (520), the second cylinder (5 When the drive seat (530) is not in motion, under the action of the third spring (550), the drive seat (530) is at the lowest position. Under the action of the second spring (540), the ratchet face (523) of a ratchet wheel (521) on the upper part of the ratchet frame (520) abuts against the end face of the drive seat groove (531). When the second cylinder (560) is in motion, the drive seat (530) is lifted up, and the end face of the drive seat groove (531) loses contact with the ratchet face (523). The ratchet frame (520) moves in the direction opposite to the ratchet wheel (521) under the action of the second spring (540). The ratchet frame (520) After the movement, the ratchet straight surface (523) of the lower ratchet (521) contacts the end surface of the lower portion of the drive seat groove (531), and the ratchet frame (520) stops at the current position. The distance moved by the ratchet frame (520) is equal to the distance between the upper and lower adjacent ratchet wheels (521). When the No. 2 cylinder (560) is reset, the drive seat (530) is reset under the action of the No. 3 spring (550). When the drive seat (530) is reset, the ratchet straight surface (523) of the lower ratchet (521) loses contact with the end surface of the drive seat groove (531), and the ratchet frame (520) is reset under the action of the No. 2 spring (550). 40), moves in the direction opposite to the ratchet (521), after the drive seat (530) moves, the ratchet straight surface (523) of the upper ratchet (521) contacts the end surface of the lower part of the drive seat groove (531), and the distance moved by the ratchet frame (520) is equal to the distance between the upper and lower ratchet wheels (521). When the No. 2 air cylinder (560) is actuated once, the ratchet frame (520) moves the distance between the two adjacent ratchet wheels (521) on the same plane, and when the No. 2 air cylinder (560) is actuated and reset, the ratchet frame (520) moves half the distance between the ratchet wheels (521).

9. The agricultural planting and sowing device according to claim 1, characterized in that The distance between two adjacent ratchets (521) on the same surface of the ratchet frame (520) is equal to the distance between two adjacent rows of seed storage grooves (421) on the seed storage plate (420).

10. The agricultural planting and sowing device according to claim 1, characterized in that The lower part of each seed pushing frame (510) is fixed to the upper part of the sprocket frame (210), and a connecting bolt (570) is inserted into one side of each ratchet frame (520), and the connecting bolt (570) is sleeved on the outer side of the seed storage plate pin (422) of the corresponding seed storage plate (420).

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