Agricultural rice seedling raising quantitative seeding device

Abstract

The invention discloses an agricultural rice seedling raising quantitative seeding device, and relates to the technical field of rice seedling raising, the agricultural rice seedling raising quantitative seeding device comprises a rotating shaft, two ends of the rotating shaft are fixedly connected with rollers, the rotating shaft is rotatably connected with a material storage box, the agricultural rice seedling raising quantitative seeding device further comprises a seeding mechanism, and the seeding mechanism is located on the material storage box; the seeding mechanism comprises a quantitative discharging unit, a swinging unit and a sliding unit. Through arrangement of the swinging unit, a rotating shaft rotates to drive a rotating rod and an L-shaped rod to rotate through two bevel gears, the L-shaped rod rotates to drive a T-shaped rack to reciprocate, the T-shaped rack reciprocates to drive a driving gear and the rotating rod to reciprocate, and the rotating rod reciprocates to drive a swinging rod to reciprocate. The swing rod swings to drive the movable rod and the brush to reciprocate through the connecting rod, so that the brush can uniformly sweep rice seeds between the two discharging boxes, and the rice seeds can be uniformly sown.

Description

Technical Field

[0001] The present invention relates to the technical field of rice seedling raising, and in particular to an agricultural rice seedling raising quantitative sowing device. Background Art

[0002] Currently, when most rice is planted and seedlings are cultivated, a seeding machine is required to sow rice seeds, so as to achieve the effect of efficient seeding.

[0003] Chinese Patent with publication number CN110731141A discloses a rice precise seeding and seedling raising device and method, including: a box body for storing seeds, a feeding tray located at the bottom end of the box body for quantitatively sowing seeds, and a movable rod located at one end of the feeding tray for driving the feeding tray to rotate so as to sow a fixed amount of seeds through a guiding pipe. By arranging a limiting block between several wedge-shaped boxes and the seed box.

[0004] However, the above invention has the following deficiencies: During the sowing process of existing rice seeds, due to the too long length of the discharge port, the situation of blockage of the discharge port will increase, resulting in the inability to achieve the effect of uniform sowing of rice seeds. And for the design method of multiple discharge ports, the positions of the discharge ports are relatively fixed, and there are gaps between the discharge ports, which will result in certain weak sowing areas, thus reducing the sowing effect of rice seeds. Summary of the Invention

[0005] The purpose of the present invention is to provide an agricultural rice seedling raising quantitative sowing device. The rotation of the rotating shaft drives the rotating rod and the L-shaped rod to rotate through two bevel gears. The rotation of the L-shaped rod drives the T-shaped rack to reciprocate. The reciprocating movement of the T-shaped rack drives the driving gear and the rotating rod to reciprocate. The reciprocating rotation of the rotating rod drives the swing rod to reciprocate. The swing of the swing rod drives the movable rod and the brush to reciprocate through the connecting rod, so that the brush can sweep the rice seeds between the two discharge boxes evenly, thereby being able to sow rice seeds evenly, so as to solve the problems raised in the above background art.

[0006] The technical solution of the present invention is: an agricultural rice seedling raising quantitative sowing device, including a rotating shaft, both ends of the rotating shaft are fixedly connected with rollers, and a storage box is rotatably connected to the rotating shaft. It further includes:

[0007] A sowing mechanism, the sowing mechanism is located on the storage box;

[0008] The seeding mechanism includes a quantitative discharging unit, a swinging unit and a sliding unit. The swinging unit includes a plurality of fixed shells fixedly connected to the bottom of the storage bin. The bottoms of the plurality of fixed shells are fixedly communicated with guide pipes. The bottoms of the plurality of guide pipes are fixedly communicated with a discharging box. A rotating rod is rotatably connected to the discharging box. One end of the rotating rod is fixedly connected to a swinging rod. The bottom end of the swinging rod is rotatably connected to a connecting rod. One end of the connecting rod is fixedly connected to a movable rod which is rotatably connected. Four brushes are fixedly connected to the bottom of the movable rod. The other end of the rotating rod is fixedly connected to a driving gear. An air cylinder housing is fixedly connected to the guide pipe. A vertical rod is fixedly connected to the bottom of the air cylinder housing. A rotating rod is rotatably connected to the vertical rod. Bevel gears are fixedly connected to one end of the rotating rod and the rotating shaft respectively. The two bevel gears are meshed with each other. The other end of the rotating rod is fixedly connected to an L-shaped rod. A T-shaped rack is sleeved on the L-shaped rod. The T-shaped rack is meshed with the driving gear.

[0009] Preferably, a sliding piston is slidably connected to the air cylinder housing. The bottom end of the sliding piston is fixedly connected to the top of the T-shaped rack. A one-way intake pipe is fixedly communicated with the top of the air cylinder housing. A one-way outlet pipe is fixedly connected to the air cylinder housing. One end of the one-way outlet pipe is fixedly communicated with the guide pipe.

[0010] Preferably, a fixed block is slidably sleeved on the movable rod. The fixed block is fixedly connected to the middle discharging box.

[0011] Preferably, a guide plate is fixedly sleeved on the rotating rod. The guide plate is located inside the discharging box.

[0012] Preferably, a screen is fixedly connected to the inner wall of the discharging box. The screen is located below the guide plate.

[0013] Preferably, the sliding unit includes a bracket fixedly connected to one side of the discharging box. A sliding rake is slidably sleeved on the bracket. An installation rack is fixedly connected to one side of the sliding rake. A rotating gear is fixedly sleeved on the rotating rod. The rotating gear is meshed with the installation rack.

[0014] Preferably, the quantitative discharging unit includes a plurality of fixed rods fixedly connected to the bottom of the storage bin. An activity groove is formed at one end of the fixed rod. A sliding rack is slidably connected in the activity groove. A fixed shaft is rotatably connected to the fixed shell. A rotating gear is fixedly connected to one end of the fixed shaft. The rotating gear is meshed with the sliding rack. A baffle is fixedly connected to the other end of the fixed shaft. An outlet is fixedly connected to the bottom of the storage bin. The baffle is in contact with the outlet.

[0015] Preferably, one end of the sliding rack is fixedly connected to a mounting rod, and an extrusion block is fixedly connected to the rotating shaft, and the extrusion block abuts against the mounting rod at a fixed frequency when the extrusion block rotates in a circle.

[0016] Preferably, a return spring is provided in the fixing rod, and two ends of the return spring are fixedly connected to the fixing rod and the sliding rack respectively.

[0017] The present invention provides an agricultural rice seedling raising quantitative sowing device through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, the present invention arranges a swing unit, and the rotation of the rotating shaft drives the rotating rod and the L-shaped rod to rotate through two bevel gears, the rotation of the L-shaped rod drives the T-shaped rack to move back and forth, the reciprocating movement of the T-shaped rack drives the driving gear and the rotating rod to rotate back and forth, the rotation of the rotating rod drives the guide plate to swing back and forth, so that the rice seeds can be evenly spread on the screen, so that the rice seeds fall through the screen for uniform sowing, the reciprocating rotation of the rotating rod drives the swing rod to swing back and forth, the swinging of the swing rod drives the movable rod and the brush to move back and forth through the connecting rod, so that the brush can evenly sweep the rice seeds between the two discharge boxes, so that the rice seeds can be evenly sown.

[0019] Secondly, the present invention sets a sliding unit, the rotating rod rotates to drive the rotating gear to rotate, the rotating gear rotates to drive the installed rack to move back and forth, the movement of the installed rack drives the sliding rake to move back and forth, so that the sliding rake moves in the cultivation soil, and then the cultivation soil can be leveled.

[0020] Thirdly, the present invention drives the sliding piston to reciprocate in the cylinder housing by moving the T-shaped rack. The sliding piston moves upward to blow air into the material guide pipe through the one-way air outlet pipe, so that the rice seeds will not be blocked in the material guide pipe. The sliding piston moves downward to intake air into the cylinder housing through the one-way air inlet pipe.

[0021] Fourthly, the present invention arranges a quantitative discharging unit. The rotation of the rotating shaft drives the extrusion block to rotate. The extrusion block extrusion mounting rod drives the sliding rack to move. The movement of the sliding rack drives the rotating gear and the fixed shaft to rotate. The rotation of the fixed shaft drives the baffle to swing and open the discharging port, so that the rice seed box in the storage box is fed into the fixed shell. When the extrusion block is away from the mounting rod, the reset spring drives the baffle to reset, so that the baffle closes the discharging port, and then quantitative discharging can be carried out into the fixed shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 Schematic diagram of the overall three-dimensional structure in the present invention;

[0024] Figure 2 Schematic diagram of the three-dimensional structure of the seeding mechanism in the present invention;

[0025] Figure 3 Schematic diagram of the three-dimensional structure of the sliding unit in the present invention;

[0026] Figure 4 Schematic diagram of the three-dimensional structure of the cooperation between the movable rod and the brush in the present invention;

[0027] Figure 5 Schematic diagram of the inner wall sectional plane structure of the discharge box in the present invention;

[0028] Figure 6 Schematic diagram of the sectional three-dimensional structure of the cooperation between the discharge port and the baffle in the present invention;

[0029] Figure 7 Schematic diagram of the internal sectional structure of the fixed rod in the present invention.

[0030] Reference numerals:

[0031] 1. Rotating shaft; 11. Roller; 12. Storage bin; 13. Fixed shell; 14. Guide pipe; 15. Discharge box; 16. Sieve; 17. Discharge port; 2. Fixed rod; 21. Sliding rack; 22. Rotating gear; 23. Fixed shaft; 24. Baffle; 25. Mounting rod; 26. Extrusion block; 27. Return spring; 3. Vertical rod; 31. Rotating rod; 32. Bevel gear; 33. L-shaped rod; 34. T-shaped rack; 35. Driving gear; 36. Rotating rod; 37. Swing rod; 38. Connecting rod; 39. Movable rod; 310. Brush; 311. Fixed block; 312. Guide plate; 4. Cylinder housing; 41. Sliding piston; 42. One-way intake pipe; 43. One-way outlet pipe; 5. Bracket; 51. Sliding rake; 52. Mounting rack; 53. Rotating gear. Specific embodiments

[0032] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] The present invention provides an agricultural rice seedling raising quantitative sowing device through improvement. The technical solution of the present invention is as follows:

[0034] As Figures 1 to 7 shown, the embodiment of the present invention provides an agricultural rice seedling raising quantitative sowing device, including a rotating shaft 1. Both ends of the rotating shaft 1 are fixedly connected with rollers 11. A storage box 12 is rotatably connected to the rotating shaft 1. It further includes:

[0035] A sowing mechanism located on the storage box 12;

[0036] The sowing mechanism includes a quantitative discharging unit, a swinging unit and a sliding unit. The swinging unit includes a plurality of fixed shells 13 fixedly connected to the bottom of the storage box 12. The bottoms of the plurality of fixed shells 13 are fixedly communicated with guide pipes 14. The bottoms of the plurality of guide pipes 14 are fixedly communicated with a discharging box 15. A rotating rod 36 is rotatably connected to the discharging box 15. One end of the rotating rod 36 is fixedly connected with a swinging rod 37. The bottom end of the swinging rod 37 is rotatably connected with a connecting rod 38. One end of the connecting rod 38 is fixedly connected with a rotatably connected movable rod 39. Four brushes 310 are fixedly connected to the bottom of the movable rod 39. The other end of the rotating rod 36 is fixedly connected with a driving gear 35. An air cylinder housing 4 is fixedly connected to the guide pipe 14. A vertical rod 3 is fixedly connected to the bottom of the air cylinder housing 4. A rotating rod 31 is rotatably connected to the vertical rod 3. One end of the rotating rod 31 and the rotating shaft 1 are both fixedly connected with bevel gears 32. The two bevel gears 32 are engaged with each other. The other end of the rotating rod 31 is fixedly connected with an L-shaped rod 33. A T-shaped rack 34 is sleeved on the L-shaped rod 33. The T-shaped rack 34 is engaged with the driving gear 35. Through the setting of the swinging unit, the rotation of the rotating shaft 1 drives the rotating rod 31 and the L-shaped rod 33 to rotate through the two bevel gears 32. The rotation of the L-shaped rod 33 drives the T-shaped rack 34 to reciprocate. The reciprocating movement of the T-shaped rack 34 drives the driving gear 35 and the rotating rod 36 to rotate reciprocally. The reciprocating rotation of the rotating rod 36 drives the swinging rod 37 to swing reciprocally. The swinging of the swinging rod 37 drives the movable rod 39 and the brushes 310 to reciprocate through the connecting rod 38, so that the brushes 310 can sweep the rice seeds located between the two discharging boxes 15 evenly, thereby enabling the rice seeds to be sown evenly.

[0037] Further, a sliding piston 41 is slidably connected to the air cylinder housing 4. The bottom end of the sliding piston 41 is fixedly connected to the top of the T-shaped rack 34. The top of the air cylinder housing 4 is fixedly communicated with a one-way intake pipe 42. A one-way outlet pipe 43 is fixedly connected to the air cylinder housing 4. One end of the one-way outlet pipe 43 is fixedly communicated with the material guide pipe 14. Through the arrangement of the sliding piston 41, the movement of the T-shaped rack 34 drives the sliding piston 41 to reciprocate in the air cylinder housing 4. When the sliding piston 41 moves upward, it can blow air into the material guide pipe 14 through the one-way outlet pipe 43, so that the rice seeds will not be blocked in the material guide pipe 14. When the sliding piston 41 moves downward, it can intake air into the air cylinder housing 4 through the one-way intake pipe 42.

[0038] Further, a fixed block 311 is slidably sleeved on the movable rod 39. The fixed block 311 is fixedly connected to the middle discharge box 15. Through the arrangement of the fixed block 311, the stability of the movable rod 39 is improved.

[0039] Further, a material guide plate 312 is fixedly sleeved on the rotating rod 36. The material guide plate 312 is located inside the discharge box 15. A screen 16 is fixedly connected to the inner wall of the discharge box 15. The screen 16 is located below the material guide plate 312. Through the arrangement of the material guide plate 312, the rotation of the rotating rod 36 drives the material guide plate 312 to swing reciprocally. The swinging of the material guide plate 312 can guide the rice seeds entering the discharge box 15, so that the rice seeds can be evenly spread on the screen 16, and the rice seeds can fall from the screen 16 for uniform sowing.

[0040] Further, the sliding unit includes a bracket 5 fixedly connected to one side of the discharge box 15. A sliding rake 51 is slidably sleeved on the bracket 5. One side of the sliding rake 51 is fixedly connected to an installation rack 52. A rotating gear 53 is fixedly sleeved on the rotating rod 36. The rotating gear 53 meshes with the installation rack 52. Through the arrangement of the sliding unit, the rotation of the rotating rod 36 drives the rotating gear 53 to rotate. The rotation of the rotating gear 53 drives the installation rack 52 to reciprocate. The movement of the installation rack 52 drives the sliding rake 51 to reciprocate, so that the sliding rake 51 moves in the cultivation soil, and thus the cultivation soil can be leveled.

[0041] Further, the quantitative discharging unit includes a plurality of fixing rods 2 fixedly connected to the bottom of the storage bin 12. An activity groove is formed at one end of the fixing rod 2. A sliding rack 21 is slidably connected in the activity groove. A fixing shaft 23 is rotatably connected to the fixing shell 13. A rotating gear 22 is fixedly connected to one end of the fixing shaft 23. The rotating gear 22 meshes with the sliding rack 21. A baffle 24 is fixedly connected to the other end of the fixing shaft 23. A discharging port 17 is fixedly connected to the bottom of the storage bin 12. The baffle 24 contacts the discharging port 17. An installation rod 25 is fixedly connected to one end of the sliding rack 21. An extrusion block 26 is fixedly connected to the rotating shaft 1. When the extrusion block 26 rotates circumferentially, it regularly abuts against the installation rod 25. A return spring 27 is arranged in the fixing rod 2. Both ends of the return spring 27 are fixedly connected to the fixing rod 2 and the sliding rack 21 respectively; through the setting of the quantitative discharging unit, the rotation of the rotating shaft 1 drives the extrusion block 26 to rotate. The extrusion block 26 extrudes the installation rod 25 to drive the sliding rack 21 to move. The movement of the sliding rack 21 drives the rotating gear 22 and the fixing shaft 23 to rotate. The rotation of the fixing shaft 23 drives the baffle 24 to swing and opens the discharging port 17, so that the rice seeds in the storage bin 12 enter the fixing shell 13. When the extrusion block 26 moves away from the installation rod 25, the return spring 27 drives the baffle 24 to reset, so that the baffle 24 closes the discharging port 17, and thus quantitative discharging into the fixing shell 13 can be achieved.

[0042] Working principle: During the process of sowing rice seeds, when the roller 11 moves, it drives the rotating shaft 1 to rotate. The rotation of the rotating shaft 1 drives the rotating rod 31 to rotate through two bevel gears 32. The rotation of the rotating rod 31 drives the L-shaped rod 33 to rotate. The rotation of the L-shaped rod 33 drives the T-shaped rack 34 to move reciprocally. The reciprocal movement of the T-shaped rack 34 drives the driving gear 35 to rotate reciprocally. The reciprocal rotation of the driving gear 35 drives the rotating rod 36 to rotate reciprocally. The rotation of the rotating rod 36 drives the guide plate 312 to swing reciprocally. The swinging of the guide plate 312 drives the guiding of the rice seeds entering the discharge box 15, enabling the rice seeds to be evenly spread on the sieve 16, and then the rice seeds fall from the sieve 16 for uniform sowing. The reciprocal rotation of the rotating rod 36 drives the swinging rod 37 to swing reciprocally. The swinging of the swinging rod 37 drives the movable rod 39 and the brush 310 to move reciprocally through the connecting rod 38. Since the brush 310 is located between the two discharge boxes 15, the brush 310 can sweep the rice seeds between the two discharge boxes 15 evenly, thus enabling the uniform sowing of rice seeds. The rotation of the rotating rod 36 drives the rotating gear 53 to rotate. The rotation of the rotating gear 53 drives the mounting rack 52 to move reciprocally. The movement of the mounting rack 52 drives the sliding rake 51 to move reciprocally, causing the sliding rake 51 to move in the cultivation soil, and thus being able to level the cultivation soil. The movement of the T-shaped rack 34 drives the sliding piston 41 to move reciprocally within the air cylinder housing 4. When the sliding piston 41 moves upward, it can blow air into the guide pipe 14 through the one-way outlet pipe 43, preventing the rice seeds from clogging in the guide pipe 14. When the sliding piston 41 moves downward, it can intake air into the air cylinder housing 4 through the one-way inlet pipe 42. The rotation of the rotating shaft 1 drives the extrusion block 26 to rotate in a circle. Every time the extrusion block 26 rotates one week, it extrudes the mounting rod 25 away from the rotating shaft 1 once. The movement of the mounting rod 25 drives the sliding rack 21 to move. The movement of the sliding rack 21 drives the return spring 27 to stretch and undergo elastic deformation. The movement of the sliding rack 21 drives the rotating gear 22 and the fixed shaft 23 to rotate. The rotation of the fixed shaft 23 drives the baffle 24 to swing, causing the baffle 24 to move away from the discharge port 17 and open the discharge port 17, enabling the rice seeds in the storage tank 12 to enter the fixed shell 13. When the extrusion block 26 moves away from the mounting rod 25, the return spring 27 drives the sliding rack 21 and the mounting rod 25 to reset. The reset of the sliding rack 21 drives the rotating gear 22, the fixed shaft 23, and the baffle 24 to reset, causing the baffle 24 to close the discharge port 17, and thus being able to discharge a fixed amount of materials into the fixed shell 13. The rice seeds entering the fixed shell 13 enter the discharge box 15 through the guide pipe 14, and then the rice seeds are evenly sown due to the discharge box 15.

[0043] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An agricultural rice seedling raising quantitative sowing device, including a rotating shaft (1), characterized in that: Both ends of the rotating shaft (1) are fixedly connected with rollers (11). A storage bin (12) is rotatably connected to the rotating shaft (1). Further included are: A seeding mechanism, which is located on the storage bin (12); The seeding mechanism includes a quantitative discharging unit, a swinging unit and a sliding unit. The swinging unit includes a plurality of fixed shells (13) fixedly connected to the bottom of the storage bin (12). The bottoms of the plurality of fixed shells (13) are all fixedly communicated with guide pipes (14). The bottoms of the plurality of guide pipes (14) are all fixedly communicated with a discharge box (15). A rotating rod (36) is rotatably connected to the discharge box (15). One end of the rotating rod (36) is fixedly connected with a swinging rod (37). The bottom end of the swinging rod (37) is rotatably connected with a connecting rod (38). One end of the connecting rod (38) is fixedly connected with a movable rod (39) which is rotatably connected. Four brushes (310) are fixedly connected to the bottom of the movable rod (39). The other end of the rotating rod (36) is fixedly connected with a driving gear (35). An air cylinder housing (4) is fixedly connected to the guide pipe (14). A vertical rod (3) is fixedly connected to the bottom of the air cylinder housing (4). A rotating rod (31) is rotatably connected to the vertical rod (3). Bevel gears (32) are fixedly connected to one end of the rotating rod (31) and the rotating shaft (1) respectively. The two bevel gears (32) are meshed with each other. The other end of the rotating rod (31) is fixedly connected with an L-shaped rod (33). A T-shaped rack (34) is sleeved on the L-shaped rod (33). The T-shaped rack (34) is meshed with the driving gear (35).

2. The quantitative seeding device for agricultural rice seedling raising according to claim 1, characterized in that: A sliding piston (41) is slidably connected to the air cylinder housing (4). The bottom end of the sliding piston (41) is fixedly connected to the top of the T-shaped rack (34). A one-way intake pipe (42) is fixedly communicated with the top of the air cylinder housing (4). A one-way outlet pipe (43) is fixedly connected to the air cylinder housing (4). One end of the one-way outlet pipe (43) is fixedly communicated with the guide pipe (14).

3. The quantitative seeding device for agricultural rice seedling raising according to claim 2, characterized in that: A fixed block (311) is slidably sleeved on the movable rod (39). The fixed block (311) is fixedly connected to the middle discharge box (15).

4. The quantitative seeding device for agricultural rice seedling raising according to claim 3, characterized in that: A guide plate (312) is fixedly sleeved on the rotating rod (36). The guide plate (312) is located inside the discharge box (15).

5. The quantitative seeding device for agricultural rice seedling raising according to claim 4, characterized in that: A screen (16) is fixedly connected to the inner wall of the discharge box (15). The screen (16) is located below the guide plate (312).

6. The quantitative seeding device for agricultural rice seedling raising according to claim 1, characterized in that: The sliding unit includes a bracket (5) fixedly connected to one side of the discharge box (15). A sliding rake (51) is slidably sleeved on the bracket (5). An installation rack (52) is fixedly connected to one side of the sliding rake (51). A rotating gear (53) is fixedly sleeved on the rotating rod (36). The rotating gear (53) is meshed with the installation rack (52).

7. The quantitative seeding device for agricultural rice seedling raising according to claim 1, characterized in that: The quantitative discharging unit comprises a plurality of fixed rods (2) fixedly connected to the bottom of the material storage box (12), one end of the fixed rod (2) is provided with a movable groove, a sliding rack (21) is slidably connected in the movable groove, a fixed shaft (23) is rotatably connected to the fixed shell (13), one end of the fixed shaft (23) is fixedly connected to a rotating gear (22), the rotating gear (22) and the sliding rack (21) are meshed, the other end of the fixed shaft (23) is fixedly connected to a baffle (24), the bottom of the material storage box (12) is fixedly connected to a discharging port (17), and the baffle (24) is in contact with the discharging port (17).

8. A quantitative seeding device for agricultural rice seedling raising according to claim 7, characterized in that: One end of the sliding rack (21) is fixedly connected to a mounting rod (25), and the rotating shaft (1) is fixedly connected to an extrusion block (26), and the extrusion block (26) abuts against the mounting rod (25) at a fixed frequency when rotating in a circle.

9. The quantitative seeding device for agricultural rice seedling raising according to claim 8, wherein: A return spring (27) is provided inside the fixed rod (2), and two ends of the return spring (27) are respectively fixedly connected to the fixed rod (2) and the sliding rack (21).

Images