Obstacle removing knife, seeding leg anti-jamming device and triangular final singling no-tillage planter

Abstract

The utility model discloses a barrier clearance knife, seeding leg anti-jam device and triangular final singling no-tillage planter, including planter body and anti-jam device, planter body includes frame, fertilization mechanism and seeding mechanism, anti-jam device is provided on frame between fertilization mechanism and seeding mechanism; the anti-jamming device comprises a transmission mechanism and an obstacle clearing knife, the transmission mechanism is connected with a power source and the obstacle clearing knife, the obstacle clearing knife comprises a knife body, the knife body is provided with a shaft hole, at least two arc-shaped blades are evenly distributed around the shaft hole in the circumferential direction, the bending directions of the arc-shaped blades are consistent, and wing plates are welded to the ends of the arc-shaped blades. The wing plate is driven by the obstacle clearing knife to rotate around the axis of the obstacle clearing knife, and the axis of the obstacle clearing knife is parallel and / or perpendicular to the advancing direction of the seeding leg; through rotation of the obstacle clearing knife, impurities before and after accumulation are cleared, and the impurity clearing effect is ensured, so that the problem that the seeding effect is affected due to the fact that obstacles are accumulated at the seeding legs in the seeding operation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and in particular to an obstacle clearing knife, a sowing leg anti-congestion device and a triangular seedling-fixing no-tillage seeder. Background Art

[0002] Since obstacles such as crop stubble and weeds on the ground are laid irregularly on the surface, especially obstacles of relatively large size and volume, when a combined seeder is used for fertilization and sowing operations, the above obstacles will accumulate at the sowing legs, resulting in the soil turned over by the sowing legs failing to effectively cover the fallen seeds, causing the seeds to be exposed on the ground surface, affecting the sowing effect. Therefore, a device that can clean the obstacles at the sowing legs is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an obstacle clearing knife, a sowing leg anti-congestion device and an anti-congestion no-till seeder. By adding an anti-congestion device between the fertilization mechanism and the sowing mechanism, the debris accumulated at the sowing legs is cleaned up to improve the sowing effect.

[0004] In order to solve the above technical problems, the utility model provides a technical solution: a road clearing knife, characterized in that: it includes a knife body, the knife body is a flat plate structure, and after the cutting process, an axial hole, a keyway and a blade are formed on the knife body, the blade is at least two, and is evenly distributed around the axial hole, and a wing plate is welded at the end of the blade, and the two ends of the wing plate extend to one side or both sides of the arc-shaped blade, and the plane formed by the wing plate is perpendicular to the plane formed by the knife body, and the wing plate has a horizontal angle when the wing plate is at the lowest end of the knife body.

[0005] Furthermore, the blades are of arc-shaped structure, and the bending directions of the arc-shaped blades are consistent.

[0006] Furthermore, a recessed platform for placing the wing plate is provided at the end of the blade.

[0007] In order to solve the above technical problems, another technical solution provided by the utility model is: a sowing leg anti-congestion device, comprising a transmission mechanism and an obstacle-clearing knife, wherein the obstacle-clearing knife is a rotary tillage blade or one of the obstacle-clearing knives described above, characterized in that: the two ends of the transmission mechanism are respectively linked with the power source and the obstacle-clearing knife, so as to transmit the power of the power source to the obstacle-clearing knife for rotation,

[0008] The transmission mechanism includes an active rotating shaft, a chain box and a driven rotating shaft. The active rotating shaft and the driven rotating shaft are linked by the chain box. The active rotating shaft is hinged to the frame through a bearing seat. The obstacle clearing knife is arranged at one end or both ends of the driven rotating shaft, and the axis of the obstacle clearing knife is parallel and / or perpendicular to the forward direction of the sowing leg.

[0009] Furthermore, a telescopic rod for adjusting the height of the obstacle clearing knife is provided on one side of the chain box close to the obstacle clearing knife, so that the obstacle clearing knife just touches or does not touch the ground when rotating. One end of the telescopic rod is hinged to the chain box, and the other end of the telescopic rod is hinged to the mounting seat on the frame.

[0010] In order to solve the above technical problems, another technical solution provided by the utility model is: a triangular seedling no-tillage seeder, comprising a seeder body and an anti-congestion device, wherein the seeder body comprises a frame, a fertilizing mechanism and a sowing mechanism, and the anti-congestion device is a sowing leg anti-congestion device as described above, characterized in that: the anti-congestion device is arranged on the frame between the fertilizing mechanism and the sowing mechanism, and corresponds to the front and rear of the sowing mechanism;

[0011] The power source and the mounting seat in the anti-congestion device are arranged on the frame.

[0012] Furthermore, the sowing mechanism includes a sowing leg, a seeding device, a ground wheel and a soil covering and suppressing device, which are fixed on a connecting frame in sequence, and the connecting frame is hinged to the frame through a four-linkage, and the ground wheel drives the rotating drum to rotate through a gearbox and a transmission assembly, and two seeding devices are arranged at both ends of the rotating drum, and the rotating shafts on the two seeding devices are respectively detachable and coaxially inserted into the polygonal holes at both ends of the rotating drum, and there is a radial deflection angle between the polygonal holes at both ends of the rotating drum, so that the two seeding devices can perform staggered seeding.

[0013] Furthermore, the mounting seat is arranged on the connecting frame.

[0014] Furthermore, the soil covering and suppressing device includes a soil covering and suppressing wheel and a lifting frame, one end of the lifting frame is connected to the connecting frame, two soil covering and suppressing wheels are rotatably arranged in a V shape on both sides of the other end of the lifting frame, and the lifting frame is provided with an arc-shaped limiting hole, and a plurality of limiting grooves distributed along the inner arc are provided in the arc-shaped limiting hole, and the angle adjustment handle is connected to the rotating shaft of the soil covering and suppressing wheel, and the angle adjustment handle is provided with a strip-shaped limiting hole, and limiting bolts pass through the strip-shaped limiting hole and the arc-shaped limiting hole, and the limiting bolts are embedded in different limiting grooves to realize the forward and backward rotation and limiting of the two V-shaped soil covering and suppressing wheels as a whole.

[0015] Furthermore, a drip irrigation tape laying device for laying the drip irrigation tape corresponding to the sowing mechanism is arranged at the rear of the seeder body.

[0016] The beneficial effects of the utility model are:

[0017] 1. The present application drives the wing plate to rotate by using an obstacle clearing knife, and clears the debris with relatively large size and volume accumulated at the two sowing legs in the same sowing mechanism through the wing plate, and can also break up larger soil blocks, and the axis of the obstacle clearing knife is parallel or perpendicular to the forward direction of the sowing legs, one clears the debris after accumulation, and the other clears the debris before accumulation, and at the same time, the two can be arranged at the same time to ensure the debris cleaning effect, thereby solving the problem that obstacles accumulate at the sowing legs during sowing operations and affect the sowing effect.

[0018] 2. The rotation of the wing plate in the present application increases the obstacle clearing effect, and the wing plate is placed in the concave platform on the blade to increase the connection area between the wing plate and the blade, ensuring the connection strength between the two. The keyway is set to prevent sliding between the cutter body and the driven transmission shaft. After the cutter body is operated through the cutting process, an axial hole, a keyway and an arc-shaped blade are formed on the cutter body. The integrated structure is easy to manufacture and can be directly cut and manufactured. The curvature of the arc-shaped blade conforms to the rotation direction of the cutter body. The outer curvature of the rotating blade can press the fluffy debris on the ground, and then the debris is pushed away by the wing plate. At the same time, the two ends of the wing plate extend to both sides of the arc-shaped blade, and the plane formed by the wing plate is perpendicular to the plane formed by the cutter body, increasing the moving area of ​​the arc-shaped blade, which is convenient for moving debris and breaking large-sized soil blocks. The seed meter is designed to be high, with a large ground clearance and good passability.

[0019] 3. In the present application, the telescopic rod can adjust the height of the obstacle clearing knife according to different sowing depths, so that the wing plate just touches the ground or does not touch the ground when rotating, ensuring that the debris on the ground is thrown out and cleared, especially the debris with larger size and volume, while minimizing the damage to the soil layer. Since the fertilization, anti-congestion device and sowing are on the same axis, the wing plate is prevented from forming grooves on the ground to dig out the fertilizer and affect the subsequent sowing and covering the soil.

[0020] 4. In the present application, two obstacle clearing knives are arranged on both sides of the chain box to increase the debris removal effect. When the axes of the two obstacle clearing knives on both sides of the chain box are parallel to the forward direction of the sowing leg, the debris is thrown to the left and right sides of the sowing leg. When the axes of the obstacle clearing knives are perpendicular to the forward direction of the sowing leg, the debris is thrown to the rear side of the sowing leg to prevent the debris from accumulating at the sowing leg.

[0021] 5. The present application is used in conjunction with the seed drill and drip tape laying device in the prior art, and can simultaneously perform fertilization, seeding and drip tape laying operations, thereby improving farming efficiency.

[0022] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only eight of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the structure of a wrecker.

[0025] Figure 2 This is a schematic diagram of the structure of a triangular seedling-fixing no-tillage seeder proposed in the utility model. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the structure of a triangular seedling-fixing no-tillage seeder proposed in the utility model. Figure 2 ;

[0027] Figure 4 for Figure 3 Enlarged image of 11;

[0028] Figure 5 for Figure 3 Enlarged view of 22;

[0029] Figure 6 It is a structural schematic diagram of the soil covering and suppression device;

[0030] Figure 7 This is a schematic diagram of the use when the axis of the obstacle removal knife is perpendicular to the sowing direction;

[0031] Figure 8 This is a schematic diagram of the use when the axis of the obstacle removal knife is parallel to the sowing direction.

[0032] In the figure: A-transmission mechanism, C-obstacle clearing knife, D-frame, E-fertilization mechanism, F-seeding mechanism;

[0033] A1-gearbox, A2-driving shaft, A3-driven shaft, A4-chain box;

[0034] C1-blade, C2-arc blade, C3-axis, C4-telescopic rod, C5-mounting seat, C6-wing plate, C7-recess, C8-axis hole, C9-keyway;

[0035] F1- sowing legs, F2- seeding device, F3- ground wheel, F4- soil covering and pressing device, F5- connecting frame, F6- four-link, F7- gearbox, F8- transmission assembly, F9- rotating drum;

[0036] F41-soil covering and pressing wheel, F42-lifting frame, F43-arc limit hole, F44-limit slot, F45-angle adjustment handle, F46-strip limit hole. DETAILED DESCRIPTION

[0037] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] The names of the messages or information exchanged between multiple devices in the implementation manner of the present utility model are only used for illustrative purposes, and are not used to limit the scope of these messages or information. Example

[0040] like Figure 1 As shown, an obstacle clearing knife is provided, including a knife body C1, the knife body C1 is a flat plate structure, and after a cutting process operation, an axial hole C8, a keyway C9 and an arc blade C2 are formed on the knife body C1, there are at least two (preferably three, four and five) arc blades C2, and they are evenly distributed around the axial hole C8, and the bending directions of the arc blades C2 are consistent, and a wing plate C6 is welded to the end of the arc blade C2, and the two ends of the wing plate C6 extend to the two sides of the arc blade C2, or one end of the wing plate C6 extends to one side of the arc blade C2, and the plane formed by the wing plate C6 is perpendicular to the plane formed by the knife body C1, and when the wing plate C6 is at the lowest end of the knife body C1, the wing plate C6 has a horizontal angle, and the angle can be 0° or 30°-150°, specifically 45°, 60°, 90°, 120° and 125°.

[0041] In the present application, the obstacle clearing knife C drives the wing plate C6 to rotate (the wing plate C6 can be a polygon, preferably a rectangle and a hexagon, wherein the length of the rectangle is three times the thickness of the arc blade C2, the width is twice the thickness of the arc blade C2, and the thickness is the same as the thickness of the arc blade C2), and the wing plate C6 is used to clean up the debris with relatively large size and volume accumulated at the two sowing legs F1 in the same sowing mechanism F. The key groove C9 is set to prevent the knife body C1 from sliding with the driven transmission shaft A3. After the knife body C1 is operated by the cutting process, the shaft hole C8, the key groove C9 and the arc blade C2 are formed on the knife body C1. The integrated structure is easy to manufacture and can be directly cut and manufactured. The arc of the arc blade C2 is The degree conforms to the rotation direction of the blade body C1, and the fluffy debris can be pressed on the ground by the outer curvature of the rotating blade C2, and then the debris is pushed away by the wing plate C6. At the same time, the two ends of the wing plate C6 extend to the two sides of the arc-shaped blade C2, and the plane formed by the wing plate C6 is perpendicular to the plane formed by the blade body C1, thereby increasing the moving area of ​​the arc-shaped blade C2, facilitating the moving of debris and breaking up large-sized soil blocks. The seed meter F2 is designed to be high, with a large ground clearance and good passability. By changing the horizontal angle of the wing plate C6 when the wing plate C6 is at the lowest end of the blade body C1, it is convenient to push away the debris, and the size of the wind force formed by the rotating wing plate C6 is adjusted to promote the movement of debris. Example

[0042] like Figure 1 As shown, this embodiment is obtained by adding technical features such as the recess C7 on the basis of the embodiment one. The remaining technical features are the same as those of the embodiment one and the similarities are not repeated here. Among them, the difference between this embodiment and the embodiment one is that a recess C7 for placing the wing plate C6 is provided at the end of the arc-shaped blade C2.

[0043] In this embodiment, the wing plate C6 is placed in the concave platform C7 on the blade, which increases the connection area between the wing plate C6 and the blade and ensures the connection strength between the two.

[0044] The technical solution formed by the above embodiments cooperates with the transmission mechanism to form another technical solution disclosed in the present application, which is: a sowing leg anti-congestion device, including a transmission mechanism and an obstacle-clearing knife C, the obstacle-clearing knife C is a rotary tillage blade or the above-mentioned obstacle-clearing knife C, and the two ends of the transmission mechanism are respectively linked with the power source and the obstacle-clearing knife C, so as to transmit the power of the power source to the obstacle-clearing knife C for rotation;

[0045] The transmission mechanism includes an active rotating shaft A2, a chain box A4 and a driven rotating shaft A3. The active rotating shaft and the driven rotating shaft A3 are linked through the chain box A4. The active rotating shaft A2 is hinged to the frame D through a bearing seat. The obstacle clearing knife C is sleeved on one end or both ends of the driven rotating shaft A3, and after the key is inserted into the key slot C9, the fixing nut is tightened on the driven rotating shaft A3 to complete the connection between the obstacle clearing knife C and the driven rotating shaft A3. The axis C3 of the obstacle clearing knife C is parallel and / or perpendicular to the forward direction of the sowing leg F1; two obstacle clearing knives C are arranged on both sides of the chain box A4 to increase the debris removal effect, and when the axis C3 of the two obstacle clearing knives C on both sides of the chain box A4 is parallel to the forward direction of the sowing leg F1, the debris is thrown out to the left and right sides of the sowing leg F1, and when the axis C3 of the obstacle clearing knife C is perpendicular to the forward direction of the sowing leg F1, the debris is thrown out to the rear side of the sowing leg F1 to prevent the debris from accumulating at the sowing leg F1.

[0046] When the obstacle clearing blade C is a rotary tiller blade, multiple rotary tiller blades are connected to the driven rotating shaft A3 through a rotary tiller blade seat, or are directly welded to the driven rotating shaft A3 (this part of the connection method is the same as the connection method of the rotary tiller blades in the rotary tiller, which is not described in detail here and is not shown in the accompanying drawings).

[0047] Among them, a telescopic rod C4 for adjusting the height of the obstacle clearing knife C is provided on the side of the chain box A4 close to the obstacle clearing knife C, so that the obstacle clearing knife C just touches or does not touch the ground when rotating, one end of the telescopic rod C4 is hinged to the chain box A4, and the other end of the telescopic rod C4 is hinged to the mounting seat C5 on the frame D; the telescopic rod C4 can adjust the height of the obstacle clearing knife C according to different sowing depths, so that the wing plate C6 just touches or does not touch the ground when rotating, ensuring that the debris on the ground is thrown out and cleared, especially the debris with larger size and volume, while minimizing the damage to the soil layer. Since the fertilization, anti-congestion device and sowing are on the same axis C3, the wing plate C6 is prevented from forming grooves on the ground to dig out the fertilizer while affecting the subsequent sowing and covering the soil.

[0048] In order to better solve the above technical problems, the above-mentioned seeding leg anti-congestion device is combined with the triangular seedling no-tillage seeder body with fertilization function in the prior art to form another technical solution of the present application, which is: Figure 1-Figure 7 A triangular seedling no-tillage seeder includes a seeder body and an anti-congestion device. The seeder body includes a frame D, a fertilizing mechanism E and a sowing mechanism F. The anti-congestion device is the above-mentioned sowing leg anti-congestion device. The anti-congestion device is arranged on the frame D between the fertilizing mechanism E and the sowing mechanism F, and corresponds to the front and rear of the sowing mechanism F.

[0049] The power source and mounting seat C5C5 in the anti-congestion device are arranged on the frame D; the power source is linked with the active transmission shaft A2 through the gear box A1, and the power source is an electric motor, a hydraulic motor or a power output shaft of the tractor, specifically: the gear box A1 is linked with the power output shaft of the tractor, and the gear box A1 drives the driven rotating shaft A3 and the obstacle clearing knife C to rotate through the active rotating shaft A2 and the chain box A3 (at this time, the axis C3 of the obstacle clearing knife C is perpendicular to the forward direction of the sowing leg F1. When it is necessary to make the axis C3 of the obstacle clearing knife C parallel to the forward direction of the sowing leg F1, it is only necessary to add a commutator between the obstacle clearing knife C and the chain box A3). At the same time, when the obstacle clearing knife C is adjusted in height, the chain box A3 can rotate around the active rotating shaft A2.

[0050] Among them, a drip tape laying device for laying the drip tape corresponding to the sowing mechanism F is provided at the rear of the seeder body (not shown in the figure, and the laying device commonly used in the prior art can be used); the anti-congestion device is used in conjunction with the seeder with fertilization function and the drip tape laying device in the prior art, and fertilization, sowing and drip tape laying operations can be performed simultaneously, thereby improving farming efficiency.

[0051] Among them, the sowing mechanism F includes a sowing leg F1, a seeding device F2, a ground wheel F3 and a soil covering and suppressing device F4. The sowing leg F1, the seeding device F2 and the soil covering and suppressing device F4 are fixed on the connecting frame F5 in sequence. The connecting frame F5 is hinged to the frame D through a four-link F6. The ground wheel F3 drives the rotating drum F9 to rotate through a gearbox F7 and a transmission assembly F8. Two seeding devices F2 are arranged at both ends of the rotating drum F9 to form a small double-row sowing, and the rotating shafts on the two seeding devices F2 are detachably coaxially inserted into the multi-faceted holes at both ends of the rotating drum F9. There is a radial deflection angle between the multi-faceted holes at both ends of the rotating drum F9, so that the two seeding devices F2 perform staggered sowing and fall into the soil through the two sowing legs F1; the structure is simple and easy to disassemble, and the small double-row triangular sowing is formed through the radial deflection angle between the multi-faceted holes, and there is no need to change or adjust the seeding device F2.

[0052] At the same time, the mounting seat C5 can be set on the connecting frame F5. When sowing, due to the hinged action of the four-link F6, the obstacle clearing knife C can float up and down following the connecting frame F5. Since the sowing depth is relatively fixed according to the flatness of the ground, the distance between the obstacle clearing knife C and the ground is relatively stable, which ensures the stability of clearing debris and prevents the obstacle clearing knife C from contacting the soil layer too much and damaging the soil layer.

[0053] Among them, when the axis C3 of the obstacle clearing knife C is perpendicular to the forward direction of the sowing leg F1, the rotation path of the wing plate C6 passes between the two sowing legs F1 of the small double-row sowing, and the debris entangled on the two adjacent and closer sowing legs F1 can be cleared; the sowing leg F1 is higher than the sowing leg F1 commonly used in the prior art, 20-30cm higher, preferably 25cm higher, to achieve the heightened setting of the seeding device F2, solve the congestion caused by the seeding device being too low, and also facilitate the obstacle clearing knife C to throw away the debris, with good passability.

[0054] The soil covering and suppressing device F4 includes a soil covering and suppressing wheel F41 and a lifting frame F42 (a sleeve nested with each other, a through hole is set on the sleeve, and a pin is passed through the through hole). One end of the lifting frame F42 is connected to the connecting frame F5, and two soil covering and suppressing wheels F41 are arranged on both sides of the other end of the lifting frame F42 in a V-shaped rotation. The lifting frame F42 is provided with an arc-shaped limiting hole F43, and a plurality of limiting grooves F44 distributed along the inner arc are arranged in the arc-shaped limiting hole F43, and an angle adjustment handle F45 is provided. The angle adjustment handle F45 is connected to the rotating shaft of the soil covering and pressing wheel F41 and is provided with a strip limiting hole F46. The strip limiting hole F46 and the arc limiting hole F43 are penetrated by limiting bolts, which are embedded in different limiting grooves F44 through the limiting bolts, so as to realize the forward and backward rotation and limiting of the two V-shaped soil covering and pressing wheels F41 as a whole. The opening size of the soil covering and pressing wheels F41 can be adjusted by the overall rotation of the two soil covering and pressing wheels F41 to adapt to different soil covering and pressing requirements.

[0055] When in use, the frame D is connected to the hydraulic lifting wall of the tractor, the power output shaft of the tractor is connected to the gear box A1, the height of the obstacle clearing knife C is adjusted by the telescopic rod C4 according to the sowing depth, and the overall rotation angle of the two soil covering and pressing wheels F41 is adjusted by the angle adjustment handle F45 according to the soil covering and pressing requirements, and then it can be used according to the use method of the seed drill in the prior art.

[0056] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A barrier knife, characterized by: It includes a knife body, which is a flat plate structure, and after a cutting process, an axial hole, a keyway and a blade are formed on the knife body. The blade is at least two and is evenly distributed around the axial hole. A wing plate is welded to the end of the blade, and the two ends of the wing plate extend to one side or both sides of the blade. The plane formed by the wing plate is perpendicular to the plane formed by the knife body, and the wing plate has a horizontal angle when the wing plate is at the lowest end of the knife body.

2. The obstacle clearing knife according to claim 1, characterized in that: The blades are of arc-shaped structure, and the bending directions of the blades are consistent.

3. The obstacle clearing knife according to claim 2, characterized in that: The blade end is provided with a concave platform for placing the wing plate.

4. A sowing leg anti-congestion device, comprising a transmission mechanism and an obstacle-clearing knife, wherein the obstacle-clearing knife is an obstacle-clearing knife according to any one of claims 1 to 3, characterized in that: The two ends of the transmission mechanism are respectively linked with the power source and the obstacle removal knife, and are used to transmit the power of the power source to the obstacle removal knife for rotation. The transmission mechanism includes an active rotating shaft, a chain box and a driven rotating shaft. The active rotating shaft and the driven rotating shaft are linked by the chain box. The active rotating shaft is hinged to the frame through a bearing seat. The obstacle clearing knife is arranged at one end or both ends of the driven rotating shaft. The axis of the obstacle clearing knife is parallel and / or perpendicular to the forward direction of the sowing leg.

5. A sowing leg anti-congestion device according to claim 4, characterized in that: A telescopic rod for adjusting the height of the obstacle clearing knife is provided on one side of the chain box close to the obstacle clearing knife so that the obstacle clearing knife just touches or does not touch the ground when rotating. One end of the telescopic rod is hinged to the chain box, and the other end of the telescopic rod is hinged to the mounting seat on the frame.

6. A triangular seedling no-tillage seeder, comprising a seeder body and an anti-congestion device, wherein the seeder body comprises a frame, a fertilizing mechanism and a sowing mechanism, and the anti-congestion device is a sowing leg anti-congestion device according to any one of claims 4-5, characterized in that: The anti-congestion device is arranged on the frame between the fertilizing mechanism and the sowing mechanism, and corresponds to the front and rear of the sowing mechanism; The power source and the mounting seat in the anti-congestion device are arranged on the frame.

7. The triangular seedling-fixing no-tillage seeder according to claim 6, characterized in that: The sowing mechanism includes a sowing leg, a seeding device, a ground wheel and a soil covering and suppressing device, which are fixed on a connecting frame in sequence, and the connecting frame is hinged to the frame through a four-linkage, and the ground wheel drives the rotating drum to rotate through a gearbox and a transmission assembly, and two seeding devices are arranged at both ends of the rotating drum, and the rotating shafts on the two seeding devices are respectively detachable and coaxially inserted into the multi-faceted holes at both ends of the rotating drum, and there is a radial deflection angle between the multi-faceted holes at both ends of the rotating drum, so that the two seeding devices can perform staggered seeding.

8. The triangular seedling-fixing no-tillage seeder according to claim 7, characterized in that: The mounting seat is arranged on the connecting frame.

9. The triangular seedling-fixing no-tillage seeder according to claim 8, characterized in that: The soil covering and pressing device comprises a soil covering and pressing wheel and a lifting frame, wherein one end of the lifting frame is connected to the connecting frame, and two soil covering and pressing wheels are rotatably arranged in a V shape on both sides of the other end of the lifting frame, and the lifting frame is provided with an arc-shaped limiting hole, and a plurality of limiting grooves distributed along the inner arc are provided in the arc-shaped limiting hole, and the angle adjustment handle is connected to the rotating shaft of the soil covering and pressing wheel, and the angle adjustment handle is provided with a strip-shaped limiting hole, and limiting bolts pass through the strip-shaped limiting hole and the arc-shaped limiting hole, and the limiting bolts are embedded in different limiting grooves to realize the forward and backward rotation and limiting of the two V-shaped soil covering and pressing wheels as a whole.

10. The triangular seedling-fixing no-tillage seeder according to claim 9, characterized in that: A drip irrigation tape laying device corresponding to the sowing mechanism is arranged at the rear of the seed drill body for laying the drip irrigation tape.

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