Seedling protection structure for rice planting, and transplanting machine

Abstract

A seedling protection structure for rice planting. A transplanting machine body, a seedling conveying assembly, a seedling separating assembly (3), a seedling throwing assembly (4), and a fastening assembly (5) are included. The end of the transplanting machine body away from the travel direction thereof is connected to the seedling conveying assembly. The seedling separating assembly is connected at the top end of the seedling conveying assembly. The seedling throwing assembly for converting rotational motion into oscillating motion is connected below the seedling separating assembly. The seedling throwing assembly adjusts and controls the force applied to seedlings by means of oscillation of the seedling throwing assembly. The fastening assembly is connected below the seedling throwing assembly and is configured to fasten seedlings by means of oscillation of the seedling throwing assembly. A transplanting machine comprising the seedling protection structure is further provided. The technical solution solves the problem of how to change the inclination angle of seedlings by uniform oscillation to improve the uniformity of seedling planting, thereby improving the erectness and uniformity of seedling planting.

Description

Rice planting seedling protection structure and rice seedling throwing machine

[0001] The invention relates to the technical field of rice planting equipment, in particular to a rice planting seedling protection structure and a rice seedling throwing machine. Background Art

[0002] A rice seedling thrower is a mechanical device that plants rice seedlings in rice fields by throwing them. Rice seedling throwers are divided into mechanical centrifugal and airflow types. The centrifugal seedling thrower sends the seedlings to the feed hole, and through the rotation and centrifugal force inside the thrower, the seedlings are thrown out of the seedling outlet and dropped into the rice field for planting. The airflow type uses a high-pressure fan to blow the seedlings out of the seedling outlet and throw them into the rice field.

[0003] When the centrifugal rice seedling throwing machine is working in the rice field, the seedling throwing disc is placed into the feed port, and the seedling throwing disc is transported to the seedling separating assembly through the seedling sending assembly. Under the action of the seedling separating assembly, the seedlings are separated from the seedling throwing disc and thrown into the seedling throwing tube under the centrifugal force of the seedling sending assembly. At the same time, the roots of the seedlings are always located at the bottom under the action of gravity, so that the seedlings maintain the correct posture and ensure that the seedlings can fall correctly into the rice field. The seedlings are thrown from the seedling throwing tube and fall into the rice field under the action of centrifugal force.

[0004] When the seedlings fall and come into contact with the paddy field soil, the seedlings penetrate deep into the paddy field under the action of force. However, due to the uneven distribution of hard and soft soil in the paddy field, the forward speed of the seedling thrower is the same and the throwing interval is the same, resulting in a uniform distribution of the seedlings' falling trajectory. At this time, the seedlings come into contact with the hard soil, causing the seedlings to land at a depth different from that of the seedlings in the soft soil. This in turn causes the seedlings to enter the paddy field at different depths, causing the seedlings to be scattered and unevenly distributed, affecting the subsequent growth of the seedlings.

[0005] To this end, the existing technology provides a catapult-type seedling thrower, which provides power for the seedling thrower by impacting the power component of the seedling thrower with water flow, thereby ejecting the seedlings and making the seedlings fall evenly to the ground, thereby achieving uniform distribution of the seedlings. However, since the uneven distribution of the hardness of the rice field soil is not solved, the roots of the seedlings fail to penetrate evenly into the rice field, resulting in the problem of scattered seedlings.

[0006] In view of this, in order to overcome the above technical problems, the present invention designs a rice planting seedling protection structure and a rice seedling throwing machine to solve the above technical problems. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: how to improve the uniformity of seedling planting by changing the seedling inclination angle through uniform swinging.

[0008] The lifting mechanism is connected with the lifting mechanism, and the lifting mechanism is connected with the lifting mechanism of the lifting mechanism, and the lifting mechanism is connected with the lifting mechanism of the lifting mechanism is connected with the lifting mechanism of the lifting mechanism.

[0009] The seedling throwing component converts rotational motion into swinging motion; the separated seedlings fall into the seedling throwing component under the action of centrifugal force, and the seedling throwing component adjusts the force applied to the seedlings by its own swing; the seedling throwing component changes the force applied to the seedlings by swinging, and increases the centrifugal force applied to the seedlings. A clamping component is connected to the bottom of the seedling throwing component, which stabilizes the seedlings through the swing of the seedling throwing component. The clamping component squeezes both sides of the roots of the seedlings after the seedlings are thrown, thereby increasing the force applied to the roots of the seedlings, keeping the seedlings upright, and preventing them from floating.

[0010] The cam is connected to the motor to move the lifting link, and the cam is connected to the motor to move the lifting link, and the cam is connected to the motor to move the lifting link, and the cam is connected to the motor to move the lifting link. The lifting mechanism of the lifting device is to lift the seedlings into the lifting position, so that the seedlings can be lifted up and the lifting speed is increased, thereby increasing the force on the seedlings and facilitating the insertion of the seedlings into the rice field; a push rod is installed at the lower end of the seedling throwing tube; the push rod adjusts the looseness of the rice field soil under the swing of the seedling throwing tube; the push rod swings back and forth under the action of the seedling throwing tube to loosen the soil of the rice field where the seedlings have not been thrown, so as to avoid the seedlings from tilting due to the hard soil of the rice field and the inability of the roots of the seedlings to penetrate into the rice field. The seedling throwing tube is provided with a circular mounting hole and is fixedly connected with the connecting rod, and the seedling throwing tube is moved synchronously under the action of the connecting rod, and the upper end of the seedling throwing tube is connected to the seedling separating assembly; the seedling throwing tube is connected to a paddle extending into the interior of the seedling separating assembly at one end near the seedling separating assembly, and the paddle is used to adjust the seedling separating speed through the swing of the seedling throwing tube, and the paddle is driven by the swing of the seedling throwing tube to generate vibration to clear the soil adhered to the seedling separating roller, thereby avoiding clogging of the seedlings and reducing the seedling separating speed.

[0011] Preferably, the clamping assembly includes a mounting rod, a central floating plate, a side floating plate, a driving wheel, a driven wheel, a transmission shaft, a clamping plate, and a fixed plate, and the lower rear side of the seedling throwing machine body is fixedly connected with a mounting rod, and the middle end of the mounting rod is fixedly installed with a central floating plate; both ends of the mounting rod are fixedly installed with boat-shaped side floating plates, and the central floating plate and the side floating plates limit the sinking of the seedling throwing machine body, and the central floating plate and the side floating plates provide buoyancy for the seedling protecting device by contacting the rice field, reducing the pressure of the seedling protecting device on the rice field, limiting the sinking distance of the seedling protecting device, and preventing the seedling protecting device from sinking into the rice field due to its own weight; an incomplete circular driving wheel is provided above the central floating plate, and the driving wheel is an incomplete gear; the driving wheel is located in the "human" shaped structure of the seedling throwing tube and the push rod, and the driving wheel is fixedly connected to the seedling throwing tube and the push rod respectively; the driving wheel is connected to the The swing of the seedling throwing tube realizes the rotation of the driven wheel; the driving wheel drives the driven wheel to rotate by meshing, and the driven wheel is installed inside the floating plate; the driven wheel is fixedly installed with a transmission shaft; the other end of the transmission shaft is provided with an external thread; the transmission shaft is connected with the internal thread opened at one end of the clamping plate through the external thread; the clamping plate realizes the stability of the seedlings by changing the distance from the fixed plate through horizontal sliding. A fixed plate fixedly connected to the side floating plate is installed on the opposite side of the clamping plate, and the transmission shaft and the clamping plate are engaged with the thread to realize the change of the motion form, and the swing of the driving shaft drives the driven shaft to rotate forward and backward, thereby realizing the horizontal pushing out and resetting of the clamping plate, and the horizontal displacement of the clamping plate changes the distance between the clamping plate and the fixed plate, so as to realize the clamping of the roots of the thrown seedlings between the clamping plate and the fixed plate, thereby ensuring the uprightness of the seedlings and preventing the seedlings from tipping over.

[0012] Preferably, the paddle is a "Y"-shaped structure; the upper end of the paddle is located inside the seedling separation assembly; the paddle limits the weight of the seedlings through the swing of the seedling throwing tube, and the lower end of the "Y"-shaped paddle is connected to the inner wall of the seedling throwing tube; the upper end of the "Y"-shaped paddle is located below the seedling separation roller of the seedling separation assembly and fits the surface of the seedling separation roller, and the "Y"-shaped paddle drives its own vibration through the swing of the seedling throwing tube to clean the soil adhered to the seedling separation roller, avoiding the accumulation of soil at the roots of the seedlings on the seedling roller, resulting in the subsequent accumulation of soil at the roots of the seedlings layer by layer, causing the soil at the roots of the seedlings to be missing, reducing its own weight, and affecting the depth of the seedlings into the ground.

[0013] Preferably, the push rod is obliquely connected to the seedling throwing tube to form a "human" shape; the push rod is symmetrically provided with an oblique groove at the other end away from the seedling throwing tube; the oblique groove forms a cone that buffers the force of the push rod, and the push rod is fixedly connected to the bottom end of the seedling throwing tube, and the push rod and the seedling throwing tube are obliquely installed to form a "human" structure, and the "human" structure adjusts the sinking distance of the seedlings by turning over the surface of the rice field; the other end of the push rod is symmetrically provided with an oblique groove, and the two oblique grooves make the push rod form a conical structure, which reduces the force area of ​​the push rod, increases the pressure of the push rod on the rice field soil, and facilitates the push rod to go deeper. At the same time, the oblique groove changes the angle of the push rod entering the ground, reduces the resistance to entering the ground, and enhances the effect of the push rod on turning the rice field soil.

[0014] Preferably, the clamping plate is an L-shaped structure. The function of the clamping plate changing its own position is to provide a restraining force for the push rod to limit the seedlings. The clamping plate changes its position with the fixed plate by changing the rotational motion into a linear motion, thereby fitting with the fixed plate, trimming the land turned over by the push plate, ensuring the flatness of the land, limiting the angle at which the seedlings land, and avoiding deviations in the landing angle of the seedlings due to uneven land, which in turn causes the seedlings to be scattered and affects the subsequent growth of the seedlings.

[0015] Preferably, the central floating plate is provided with a cavity; the cavity is used to install the driven gear, which reduces the size of the mechanism. At the same time, the opening of the cavity reduces the gravity of the central floating plate itself, and improves the buoyancy support for the rice seedling thrower body. The central floating plate is an "I"-shaped structure; the central floating plate drives itself to slide horizontally through the movement of the rice seedling thrower body and cooperates with the clamping plate to limit the angle of the rice seedlings. The "I"-shaped structure of the central floating plate increases the contact area between the floating plate and the rice field, thereby enhancing the support of the floating plate on the rice seedling thrower body. Buoyancy support reduces the pressure of the rice seedling thrower body on the rice field. The rice seedling thrower body drives the central floating plate to slide horizontally to trim the rice field after the push plate is loosened, preventing the uneven surface of the rice field from affecting the insertion of the seedlings, ensuring that the seedlings can be inserted vertically. At the same time, the clamping plate moves toward the middle of the rice seedling thrower through horizontal sliding. The two clamping plates approach each other, and the clamping plates stabilize the roots of the seedlings, piling soil to the roots of the seedlings, increasing the force on the roots of the seedlings, changing the inclination angle of the seedlings, and improving the uprightness of the seedlings.

[0016] Preferably, the side floats are symmetrically installed on both sides of the rice-throwing machine body; the side floats are of a boat-shaped structure, and the side floats achieve a balanced depth of seedlings into the ground by balancing the force on the rice-throwing machine body. The side floats are of a boat-shaped structure and can effectively alleviate the resistance they experience when moving with the rice-throwing machine body, thereby improving the smoothness of the operation of the rice-throwing machine when throwing seedlings; when the rice-throwing machine body is in operation and tilts due to uneven rice field ground, the side floats symmetrically installed on both sides of the rice-throwing machine can help the rice-throwing machine body to return to the center and maintain balance, thereby avoiding the height reduction between the rice-throwing pipe outlet and the rice field ground due to the tilt of the rice-throwing machine body, which leads to a deepening of the seedlings into the ground. At the same time, due to the tilt of the rice-throwing machine body, the rice-throwing pipe tilts along with the rice-throwing machine body, which changes the seedling throwing angle and makes the seedlings scattered.

[0017] Preferably, a rice seedling throwing machine comprises a rice seedling throwing machine body and a rice seedling delivery assembly, and further comprises any one of the above-mentioned rice seedling protection structures, wherein the rice seedling throwing machine body is connected to the rice seedling delivery assembly away from the travel end; the rice seedling throwing machine body is connected to the rice seedling throwing assembly and the clamping assembly on the side away from the travel end, the top end of the rice seedling delivery assembly is connected to the rice seedling separating assembly; the rice seedling throwing assembly is located below the rice seedling separating assembly;

[0018] The main body of the rice throwing machine is connected to the rice seedling delivery assembly away from the traveling end, and the rice seedling delivery assembly includes a sprocket, a partition rod, a support rod, and a fixed rod. The sprocket is rotatably installed on the main body of the rice throwing machine; a partition rod is fixedly installed between the sprockets, and the partition rod rotates together with the sprocket, and a support rod is installed in the middle position below the partition rod, and the support rod is fixedly connected to the partition rod through a fixed rod, and the partition rod, support rod, and fixed rod form a cone shape that fits the bottom end of the rice throwing disc; a rectangular protrusion is opened on the support rod; the protrusion is connected to the rice seedling separating assembly The mutual squeezing increases the speed of transplanting seedlings. The support rod is located at the bottom end of the seedling throwing tray. The support rod is provided with a rectangular protrusion which mutually squeezes with the seedling transplanting assembly to push the seedlings to move, thereby supporting the seedling throwing tray. At the same time, when the seedling throwing tray is transported to the seedling transplanting assembly under the action of the sprocket, the protrusion at the bottom end squeezes the bottom of the seedling throwing tray, so that all the seedlings are ejected from the seedling throwing tray, thereby enhancing the seedling transplanting effect and avoiding the occurrence of seedling leakage. The seedlings are placed in the seedling throwing tray, and the seedling throwing tray is placed on the seedling sending assembly. The seedling sending assembly sends the seedling throwing tray to the seedling transplanting assembly through its own rotation.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. A rice planting seedling protection structure and a rice seedling throwing machine of the present invention realize the mutual coordination of the seedling throwing component and the clamping component through uniform swinging to change the position of the clamping component itself, thereby clamping the roots of the seedlings, preventing the seedlings from falling over due to insufficient support force at the roots of the seedlings, causing the seedlings to be scattered.

[0021] 2. A rice planting seedling protection structure and a rice seedling throwing machine of the present invention change the centrifugal force on the seedlings by uniformly swinging, thereby increasing the seedling throwing speed and the seedlings' own kinetic energy, thereby increasing the seedling landing depth, avoiding the floating seedlings, and ensuring the uniform distribution of the seedlings.

[0022] 3. A rice planting seedling protection structure and a rice seedling throwing machine of the present invention increase the relative position height of the seedling throwing component by uniformly swinging, thereby changing the looseness of the rice field soil, thereby improving the flatness of the seedling planting, and at the same time increasing the height at which the seedlings land, thereby extending the time it takes for the seedlings to land, ensuring the time for the seedlings to adjust their own posture, and thus ensuring the uprightness of the seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific implementation or the description of the prior art.

[0024] FIG1 is a side view of the overall structure of the present invention;

[0025] FIG2 is a diagram showing the coordination of the seedling throwing assembly and the clamping assembly of the present invention;

[0026] FIG3 is a cross-sectional view of a seedling throwing assembly of the present invention;

[0027] FIG4 is an overall structural diagram of the seedling throwing assembly of the present invention;

[0028] FIG5 is a partial enlarged view of the seedling throwing assembly of the present invention;

[0029] FIG6 is a rear view of the seedling throwing assembly of the present invention;

[0030] FIG7 is an overall structural diagram of the clamping assembly of the present invention;

[0031] In the figure: 1. Seedling throwing machine body; 2. Seedling delivery assembly; 3. Seedling separation assembly; 4. Seedling throwing assembly; 41. Motor; 42. Rotating shaft; 43. Crank; 44. Rocker; 441. Slider; 45. Seedling throwing tube; 451. Slide; 46. Push rod; 461. Inclined groove; 47. Connecting rod; 48. Paddle; 49. "H" shape; 5. Clamping assembly; 51. Mounting rod; 52. Central floating plate; 521. "I" shape; 53. Side floating plate; 54. Driving wheel; 55. Driven wheel; 56. Transmission shaft; 57. Clamping plate; 58. Fixed plate. DETAILED DESCRIPTION

[0032] The lifting mechanism that lifts up rice seedlings are as follows: the lifting mechanism that lifts up rice seedlings is as follows: 1, the lifting mechanism that lifts up rice seedlings is as follows: 2, the lifting mechanism that lifts up rice seedlings is as follows: 3, the lifting mechanism that lifts up rice seedlings is as follows: 4, the lifting mechanism that lifts up rice seedlings is as follows: 5, the lifting mechanism that lifts up rice seedlings is as follows:

[0033] The lower part of the seedling separation assembly 3 is connected with a seedling throwing assembly 4 that converts the rotational motion into a swinging motion; the separated seedlings are thrown out under the rotation of the seedling separation roller, and the seedlings fall into the seedling throwing assembly 4 along the guide plate under the action of the centrifugal force of the seedlings. The seedling throwing assembly 4 regulates the force applied to the seedlings by its own swing, enhances the centrifugal force applied to the seedlings, and increases the seedling throwing force. At the same time, the swing of the seedling throwing assembly 4 can increase the seedling throwing height, increase the seedling falling speed, enhance the seedlings' own kinetic energy, and make the seedling roots penetrate into the rice field. The lower part of the seedling throwing assembly 4 is connected with a clamping assembly 5 that realizes the stability of the seedlings through the swing of the seedling throwing assembly 4. The clamping assembly 5 drives itself to operate through the swing of the seedling throwing assembly 4, squeezes the two sides of the seedling roots after the seedlings are thrown, so that the soil accumulates on both sides of the seedling roots, increases the force applied to the seedling roots, keeps the seedlings upright, and avoids the seedlings from being scattered and disorderly. At the same time, it prevents the seedlings from tipping over and causing floating seedlings.

[0034] As shown in Figures 1, 3, 4, 5 and 6, the motor 41 is fixedly installed with the rotating shaft 42, the rotating shaft 42 extends horizontally, the free end of the rotating shaft 42 is located in the middle of the rice seedling throwing machine body 1, the free end of the rotating shaft 42 is connected to the crank 43, the crank 43 is fixedly installed with the rotating shaft 42 through a circular mounting hole, the other end of the crank 43 is fixedly connected with the rocker 44 with a circular mounting hole, the rocker 44 is a rectangular block, the top of the rocker 44 is hinged with the circular mounting hole of the rocker 44, and the crank 43 is fixedly installed with the rotating shaft 42. The rocker 44 is rotatably mounted on both sides of the other end of the rocker 44. The sliders 441 are slidably connected to the seedling throwing tube 45. The seedling throwing tube 45 is symmetrically mounted. The two opposite sides of the central seedling throwing tube 45 are respectively provided with vertical slide grooves 451. The sliders 441 fixedly connected to the rocker 44 cooperate with the slide grooves 451 on the side walls of the seedling throwing tube 45. The crank 43, the rocker 44 and the seedling throwing tube 45 constitute a crank 43 rocker structure, which converts the rotation of the crank 43 into the swing of the seedling throwing tube 45.

[0035] The top two side surfaces of the seedling throwing tube 45 are hinged to the seedling outlet of the guide plate respectively, and the rear side of the seedling throwing tube 45 is provided with a mounting hole, and a connecting rod is fixedly installed in the mounting hole of the seedling throwing tube 45, and the connecting rod connects the seedling throwing tube 45 as a whole. When the crank 43 rotates, the seedling throwing tube 45 swings around the hinge point with the seedling dividing assembly 3 at the same time, and the lower end of the seedling throwing tube 45 is fixedly connected to a push rod 46, which is located in front of the seedling throwing tube 45. The push rod 46 and the seedling throwing tube 45 are tilted and the top of the push rod 46 just contacts the rice field ground. The push rod 46 and the seedling throwing tube 45 form a "human" shape 49 structure. The free end of the push rod 46 is provided with a symmetrical oblique groove 461. The symmetrical oblique groove 461 reduces the contact area between the push rod 46 and the rice field ground, increases the force on the rice field ground, and is convenient for the push rod 46 to enter the rice field ground. At the same time, the oblique groove 461 provided on the push rod 46 increases the inclination angle of the push rod 46 and the rice field ground, reducing the resistance of the push rod 46 into the ground;

[0036] When the rice seedling throwing machine is in the initial state, the throwing tube 45 is placed vertically, and the top of the push rod 46 just contacts the rice field ground. When the rice seedling throwing machine is working, the rice seedling separating assembly 3 starts to work to send the rice seedlings into the throwing assembly 4, and the motor 41 located below the rice seedling separating assembly 3 starts to rotate. The motor 41 realizes the swing of the rice seedling throwing tube 45 and the rice seedling separating of the rice seedling separating assembly 3. The rice seedling separating assembly 3 separates the rice seedlings from the rice seedling throwing tray. The separated rice seedlings remain vertical under the action of the gravity of the root soil, so that the rice seedlings fall vertically to the ground. The motor 41 drives the rotating shaft 42 fixedly connected to it to rotate, and the rotating shaft 42 drives the fixedly connected crank 43 to rotate, and the crank 43 drives the rocker 44 to rotate. The rocker 44 rotates in a circle around itself and the hinge point of the crank 43. At the same time, the rocker 44 drives the slider 441 fixedly connected at the other end to slide up and down in the slide groove 451 opened on the side wall of the rice seedling throwing tube 45. The rotation of the crank 43 is converted into the swing of the seedling throwing tube 45, and the seedling throwing tube 45 swings around the hinge point between itself and the seedling separating assembly 3 under the action of the sliders 441 on both sides of the rocker 44. The seedling throwing tubes 45 on both sides of the middle seedling throwing tube 45 are fixedly connected to the two swinging seedling throwing tubes 45 in the middle through the connecting rod to achieve synchronous swing. The inner side of the upper end of the seedling throwing tube is hinged with a "Y"-shaped paddle 48. The upper end of the "Y"-shaped paddle 48 is located at the seedling guide plate inlet and contacts the surface of the seedling separating roller. The "Y"-shaped paddle 48 drives itself to vibrate and dredge the seedling separating roller through the back and forth swing of the seedling throwing tube 45, preventing the soil at the root of the seedling from adhering to the seedling separating roller, causing soil accumulation, blocking the subsequent seedling separation, resulting in a decrease in the seedling separation speed, and at the same time preventing the soil at the root of the seedling from piling up layer by layer on the seedling separating roller, resulting in a gradual increase in the lack of soil at the root of the subsequent seedling, causing the weight of the seedling itself to decrease, affecting the insertion depth of the seedling;

[0037] When the seedling throwing tube 45 swings along the running direction of the seedling throwing machine, the push rod 46 swings along with the seedling throwing tube 45, and the push rod 46 extends into the ground of the rice field to turn the soil in the area where the seedlings are about to be thrown, so as to prevent incomplete turning of the soil in some areas, resulting in hard soil, which is not conducive to throwing the seedlings into the rice field, causing the seedlings to be inserted too shallowly and float on the surface of the rice field. When the seedling throwing tube 45 swings away from the running direction of the seedling throwing machine, it drives the push rod 46 to leave the rice field. At the same time, the seedling throwing tube 45 adds centrifugal force to the seedlings in the tube, thereby enhancing the inertia of the seedlings being thrown out and strengthening the potential energy of the seedlings. At the same time, the seedling throwing port of the seedling throwing tube 45 is raised, the seedling throwing height is increased, and the seedlings stay time in the air is increased, which is convenient for the seedlings to adjust their posture and land vertically. Under the action of gravity acceleration, the seedling landing speed increases, and the seedlings convert gravitational potential energy into kinetic energy, thereby enhancing the depth of penetration into the ground, allowing the roots to be inserted into the rice field and avoiding the floating seedling phenomenon.

[0038] As shown in Figures 1 and 7, a central floating plate 52 is fixedly installed at the middle end of the mounting rod 51. The central floating plate 52 is located at the rear side below the two middle seedling throwing tubes 45. The central floating plate 52 is an "I"-shaped 521 structure. The width of the central floating plate 52 is the same as the sum of the widths of the two seedling throwing tubes 45. The "I"-shaped 521 structure of the central floating plate 52 increases the contact area with the rice field, enhances the buoyancy, and reduces the gravity of the seedling throwing machine body 1. Side floating plates 53 are fixedly installed on both sides of the mounting rod 51. The side floating plates 53 are a boat-shaped structure. The side floating plates 53 provide buoyancy for the seedling throwing machine by contacting the rice field, reducing the self-lifting of the seedling throwing machine The side floating plates 53 are symmetrically mounted on both sides of the side floating plates 53, which can help the rice seedling protecting device to return to the center position and maintain balance when the rice seedling protecting device is in operation due to uneven rice field ground. This can prevent the rice seedling throwing machine from sinking into the rice field and becoming difficult to work. At the same time, the side floating plates 53 are boat-shaped structures, which can effectively alleviate the resistance encountered when the rice seedling throwing machine is in operation and improve the smoothness of the rice seedling throwing machine operation. When the rice seedling protecting device is in operation, if the rice field ground is uneven and tilts, the side floating plates 53 symmetrically mounted on both sides can help the rice seedling protecting device to return to the center position and maintain balance, thereby preventing the rice seedling throwing machine from tilting, which can reduce the height between the rice seedling throwing port 45 and the rice field ground, thereby deepening the depth of the rice seedlings into the ground. At the same time, due to the tilt of the rice seedling throwing machine body 1, the rice seedling throwing tube 45 also tilts, which changes the rice seedling throwing angle and causes the rice seedlings to be scattered.

[0039] The central floating plate 52 is provided with a cavity; two driving wheels 54 are provided above the central floating plate 52, and the driving wheels 54 are incomplete circular gears. The two driving wheels 54 are respectively located in the "human" shaped 49 structure at the bottom end of the two vertical seedling throwing tubes 45 and the push rod 46 in the middle. The driving wheels 54 are fixedly connected to the seedling throwing tube 45 and the push rod 46 respectively. Under the action of the seedling throwing tube 45, the driving wheels 54 swing following the seedling throwing tube 45. A driven wheel 55 is connected below the two driving wheels 54. The driven wheel 55 is rotatably installed in the cavity of the central floating plate 52. Mounting holes are respectively provided on both sides of the central floating plate 52. The mounting holes are located below the mounting rod 51. A transmission shaft 56 is rotatably installed in the mounting hole. The transmission shaft 56 is fixedly installed with the two driven wheels 55 respectively. An external thread is provided on one end of the transmission shaft 56 extending out of the floating plate. The transmission shaft 56 is connected to the opening on the clamping plate 57 through the external thread. The internal thread rotation connection of the design converts the rotational movement of the transmission shaft 56 into linear movement of the clamping plate 57 through thread transmission, realizing the extension and retraction of the clamping plate 57, and a fixing plate 58 is fixedly installed on the side floating plate 53, and the fixing plate 58 is located below the mounting rod 51, and the fixing plate 58 corresponds to the clamping plate 57 one by one. The clamping plate 57 and the fixing plate 58 are both L-shaped structures, and the horizontal end of the L-shaped structure of the clamping plate 57 and the horizontal end of the L-shaped structure of the fixing plate 58 are located between the seedling throwing tube 45 and the push rod 46. The two are tightly fitted, and the rice field turned over by the push rod 46 is trimmed to ensure the uprightness of the subsequent seedlings. The vertical end of the L-shaped structure of the clamping plate 57 and the vertical end of the L-shaped structure of the fixing plate 58 are located behind the seedling throwing tube 45, and the middle of the vertical end of the L-shaped structure of the fixing plate 58 and the vertical end of the L-shaped structure of the clamping plate 57 is the seedling throwing area of ​​the seedling throwing tube 45 on both sides;

[0040] When the seedling throwing tube 45 swings along the running direction of the seedling throwing machine, the seedling throwing tube 45 drives the driving wheel 54 to rotate synchronously, the driving wheel 54 is engaged with the driven wheel 55, the driving wheel 54 drives the driven wheel 55 to rotate, and the driven wheel 55 drives the clamping plate 57 threadedly connected thereto to move horizontally away from the fixed plate 58, and the clamping plate 57 gathers toward the center to clamp the roots of the seedlings planted in the middle. At the same time, the central floating plate 52 trims the ground after the push rod 46 is turned over, ensuring that the subsequent seedlings can be planted flatly. When the seedling throwing tube 45 swings away from the running direction of the seedling throwing machine, The seedling throwing tube 45 drives the driving wheel 54 to rotate, the driving wheel 54 is engaged with the driven wheel 55, the driving wheel 54 drives the driven wheel 55 to reverse, and the driven wheel 55 drives the clamping plate 57 to be pushed out through the transmission shaft 56. The horizontal end of the clamping plate 57 is in contact with the horizontal end of the fixed plate 58 to trim the land after the push rod 46 is turned over, ensuring that the ground is flat to facilitate subsequent seedling planting. At the same time, the vertical end of the fixed plate 58 and the vertical end of the clamping plate 57 clamp the roots of the planted seedlings to enhance the force on the roots, ensure the uprightness of the seedlings, and improve the uniformity of seedling planting.

[0041] When it is necessary to throw the seedlings, the motor 4 of the throwing assembly 4 rotates, and the motor 41 drives the crank 43 rocker mechanism composed of the rotating shaft 42, crank 43, rocker 44 and throwing tube 45. The rotating shaft 42 drives the crank 43 to rotate synchronously, and the crank 43 drives the rocker 44 to perform circular motion around the hinge point. At the same time, the sliders 441 opened on both sides of the rocker 44 move along the two side wall slides 451 of the throwing tube 45 in the central position to form a crank rocker mechanism, which converts the rotation of the rotating shaft 42 into the swing of the throwing tube 45. The throwing tube 45 is fixed with a connecting rod 47 through a circular mounting hole opened near one side of the throwing machine body 1. The connecting rod 47 connects the throwing tube 45 into a whole to achieve synchronous swing. 441 drives the seedling throwing tube 45 to swing along the forward direction of the seedling throwing machine, and the seedling throwing tube 45 drives the push rod 46 fixedly connected to the seedling throwing tube 45 to move together, and the push rod 46 turns over the rice field ground to prevent the soil in some areas of the rice field from being hard. At the same time, the seedling throwing tube 45 drives the active wheel 54 fixedly connected to it to swing, and the active wheel 54 is engaged with the driven wheel installed inside the central floating plate 52, driving the driven wheel 55 to rotate, and the driven wheel 55 drives the clamping plate 57 to move in the center, and the clamping plate 57 clamps the roots of the seedlings thrown out by the two middle seedling throwing tubes 45 to keep the seedlings upright. At the same time, the central floating plate 52 trims the rice field ground turned over by the two middle push plates to ensure the orderly progress of subsequent seedling throwing;

[0042] When the seedling throwing tube 45 swings in the direction away from the movement, the swing of the seedling throwing tube 45 provides centrifugal force to the seedlings inside, increases the force on the seedlings, and ensures that the seedlings are thrown smoothly. At the same time, the height of the seedling throwing tube 45 increases, the landing height of the seedlings increases, and the landing speed of the seedlings increases, ensuring that the seedlings can fall vertically into the rice field, maintain the verticality of the seedlings, and ensure that the seedlings are evenly distributed. At the same time, the seedling throwing tube 45 drives the driving shaft below to swing together, the driving wheel 54 drives the driven wheel 55 to reverse, and the driven wheel 55 drives the clamping plate 57 to be pushed out. The horizontal end of the clamping plate 57 is fitted with the horizontal end of the fixed plate 58 to trim the rice field after the push rod 46 is turned over. At the same time, the vertical end of the clamping plate 57 and the vertical end of the fixed plate 58 stabilize the seedlings that have been thrown on both sides, maintain the uprightness of the seedlings, and end one movement cycle of the seedling throwing machine.

[0043] As shown in Figure 1, a rice seedling throwing machine is provided with a rice seedling delivery assembly 2 fixedly installed on the upper rear side of the rice seedling throwing machine body 1. The seedlings are placed in the rice seedling throwing tray, and the rice seedling throwing tray is placed on the rice seedling delivery assembly 2. The rice seedling delivery assembly 2 is composed of a sprocket, a dividing rod, and a dividing rod. A dividing rod is fixedly installed at the hinge point of the sprocket, and the dividing rod rotates together with the sprocket. A dividing rod is installed in the middle position below the two dividing rods, and the dividing rod is fixedly connected to the dividing rod through a fixed rod. The dividing rod, the dividing rod, and the fixed rod form a cone shape that fits the bottom of the rice seedling throwing tray and supports the rice seedling throwing tray. A rectangular protrusion is provided on the dividing rod, and the rectangular protrusion is located below the rice seedling throwing tray and supports it. The sprocket sends the rice seedling throwing tray to the rice seedling dividing assembly 3 through its own rotation, and the rice seedling dividing assembly 3 sends the rice seedlings to the rice seedling throwing assembly 4 for throwing.

[0044] The basic principles and beneficial effects of the present invention are shown and described above. However, the present invention is not limited to the above embodiments. Various changes and modifications may be made to the present invention without departing from the effects and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice planting seedling protection structure, comprising a rice seedling separation component (3), characterized in that: The invention also comprises a seedling throwing assembly (4) and a clamping assembly (5); the seedling throwing assembly (4) is installed below the seedling dividing assembly (3); the seedling throwing assembly (4) controls the force applied to the seedlings by changing rotation into swinging; the clamping assembly (5) is connected below the seedling throwing assembly (4); the clamping assembly (5) changes the movement direction through the swinging of the seedling throwing assembly (4) to achieve the stability of the seedlings. 2..A rice planting seedling protection structure according to claim 1, characterized in that: The seedling throwing assembly (4) comprises a motor (41), a rotating shaft (42), a crank (43), a rocker (44), a slider (441), a seedling throwing tube (45), a slide groove (451), a push rod (46), a connecting rod (47) and a paddle (48); the motor (41) is fixedly connected to the rotating shaft (42); the rotating shaft (42) is rotatably connected to one end of the crank (43); the other end of the crank (43) is connected to the rocker (44); the other end of the rocker (44) is provided with a slider (441); the slider (441) is slidably connected to a slide groove (451) provided on a side wall of the seedling throwing tube (45); the seedling throwing tube (45) is moved in the slide groove (451) by the sliding of the slider (441) in the slide groove (451). The seedling throwing pipe (45) can achieve its own swing; the seedling throwing pipe (45) can achieve the control of the seedling throwing height by changing the angle with the vertical plane through swing; the lower end of the seedling throwing pipe (45) is fixedly connected to a push rod (46); the push rod (46) adjusts the looseness of the paddy field soil under the swing of the seedling throwing pipe (45); the seedling throwing pipe (45) is fixedly connected to a connecting rod (47); the seedling throwing pipe (45) can achieve synchronous movement under the action of the connecting rod (47); the upper end of the seedling throwing pipe (45) is connected to the seedling separation assembly (3); the end of the seedling throwing pipe (45) close to the seedling separation assembly (3) is connected to a paddle (48) extending into the interior of the seedling separation assembly (3); the paddle (48) controls the seedling separation speed through the swing of the seedling throwing pipe (45).

3. A rice planting seedling protection structure according to claim 2, characterized in that: The clamping assembly (5) comprises a mounting rod (51), a central floating plate (52), a side floating plate (53), a driving wheel (54), a driven wheel (55), a transmission shaft (56), a clamping plate (57) and a fixing plate (58); the central floating plate (52) is fixedly mounted on the middle end of the mounting rod (51); the side floating plates (53) are fixedly mounted on both ends of the mounting rod (51); the central floating plate (52) and the side floating plates (53) restrict the seedling protection device from sinking; an incomplete circular driving wheel (54) is arranged above the central floating plate (52); the driving wheel (54) is fixedly connected to the seedling throwing tube (45); the driving wheel (54) is connected to the seedling throwing tube (45) by a screw thread; ... The swing of the seedling throwing tube (45) realizes the rotation of the driven wheel (55); the driven wheel (55) is installed with the central floating plate (52); the driven wheel (55) is fixedly installed with a transmission shaft (56); the other end of the transmission shaft (56) is provided with an external thread; the transmission shaft (56) is connected to an internal thread provided at one end of a clamping plate (57) through the external thread; the clamping plate (57) realizes the change of the movement form through the threaded connection; a fixing plate (58) fixedly connected to the side floating plate (53) is installed on the opposite side of the clamping plate (57); the clamping plate (57) realizes the stabilization of the seedling root by changing the distance between the clamping plate (57) and the fixing plate (58) through horizontal sliding.

4. A rice planting seedling protection structure according to claim 3, characterized in that: The paddle (48) is of a "Y"-shaped structure; the upper end of the paddle (48) is located inside the seedling separation assembly (3); and the paddle (48) limits the deadweight of the seedlings by swinging synchronously with the seedling throwing tube (45).

5. A rice planting seedling protection structure according to claim 4, characterized in that: The push rod (46) and the seedling throwing tube (45) are connected obliquely to form a "human" shape (49), and the "human" shape (49) structure adjusts the seedling sinking distance by turning over the surface of the rice field; the other end of the push rod (46) away from the seedling throwing tube (45) is symmetrically provided with an oblique groove (461); the oblique groove (461) forms a cone that buffers the force of the push rod (46).

6. A rice planting seedling protection structure according to claim 5, characterized in that: The clamping plate (57) is an L-shaped structure, and the function of the clamping plate (57) changing its position is to provide a restraining force for the push rod (46) to restrict the seedlings.

7. A rice planting seedling protection structure according to claim 6, characterized in that: The central floating plate (52) is provided with a cavity; the central floating plate (52) is an "I"-shaped (521) structure; the central floating plate (52) is driven by the movement of the seedling throwing machine body (1) to slide horizontally and cooperate with the clamping plate (57) to limit the angle of the seedlings.

8. The rice seedling protection structure according to claim 7, characterized in that: The side floating plate (53) is a boat-shaped structure; the side floating plate (53) buffers the force applied to itself by means of the boat-shaped structure; and the side floating plate (53) achieves uniform distribution of the seedlings by balancing the force applied to the seedling protection structure.

9. A rice seedling throwing machine, characterized in that: It comprises a rice seedling throwing machine body (1) and a rice seedling delivery assembly (2), wherein the rice seedling throwing machine body (1) is connected to the rice seedling delivery assembly (2) away from the traveling end; It also comprises a rice planting seedling protection structure according to any one of claims 1 to 8, wherein a seedling throwing assembly (4) and a clamping assembly (5) are connected to the side of the seedling throwing machine body (1) away from the traveling end, and a seedling separating assembly (3) is connected to the top end of the seedling sending assembly (2).

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