Automatic sowing device for agriculture

Abstract

The present invention discloses an automatic sowing device for agriculture, comprising a base and legs symmetrically arranged on both sides of the lower end thereof, each leg being provided with a roller for walking, the input end of the roller being connected to a walking motor for driving the roller to rotate, a fixing frame being mounted on the upper end of the base, an intermediate plate being fixed at the middle position of the upper end surface of the base below the fixing frame, a sowing piece for sowing seeds and a punching piece for opening holes on the ground being respectively provided on the left and right sides of the intermediate plate, the punching piece and the sowing piece being connected by a lever piece, the present invention is designed to target the drawbacks of the existing device, and divides the traditional integrated operation of punching and sowing into two operations of punching and sowing, thereby ensuring the quality of the punched holes and avoiding the problem of blockage of the sowing end during sowing, thereby ensuring the sowing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery and equipment, in particular to an automatic sowing device for agriculture. Background Art

[0002] Agriculture belongs to the primary industry, and the science that studies agriculture is agronomy. The objects of agricultural labor are living animals and plants, and the products obtained are the animals and plants themselves. Agriculture is a basic industry that provides support for the construction and development of the national economy. The meaning of sowing is to sow seeds; or to plant by sowing. Traditional manual sowing requires a lot of manpower and time, has high labor intensity and low work efficiency. To address this problem, the existing patent announcement number CN107018726B discloses an automatic sowing device, which provides a channel for storing seeds in the jack column, so that when the jack column moves downward, a hole will be inserted on the ground. When the jack column moves upward, the seeds will be automatically discharged, thereby completing the sowing. The inner wall of the hole formed by this jacking method is relatively dense, which is not conducive to the later growth of seeds. In addition, a large amount of soil is easily adhered to the discharge port of the device. As the number of jacks increases, the discharge port is easily blocked, so that it is necessary to stop the machine frequently for cleaning, which is not conducive to improving work efficiency.

[0003] In view of the above problems, an automatic seeding device for agriculture is now provided. Summary of the invention

[0004] The object of the present invention is to provide an automatic seeding device for agriculture to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automatic sowing device for agriculture comprises a base and legs symmetrically arranged on both sides of the lower end thereof, each leg being provided with a roller for walking, the input end of the roller being connected to a walking motor for driving the rotation thereof, a fixing frame being mounted on the upper end of the base, an intermediate plate being fixed at the middle position of the upper end surface of the base below the fixing frame, a sowing member for sowing seeds and a punching member for drilling holes on the ground being respectively provided on the left and right sides of the intermediate plate, the punching member and the sowing member being connected by a lever member, and the lever member being used to realize the alternation of the two workings, this sowing method separates the sowing and drilling steps, and the drilling here adopts the form of drilling, which reduces the difficulty of drilling, ensures the looseness of the inner wall of the drilling, and is conducive to the later growth of the seeds, and the sowing here is to extend into the already drilled hole, so there will be no problem of clogging of the lower port of the sowing tube, which effectively solves the problems existing in the prior art and improves the processing efficiency;

[0007] The punching member includes a sliding opening at the upper end of the base, a lifting seat is provided at the sliding opening, a drilling motor is provided inside the lifting seat, a drilling shaft is provided at the output end of the drilling motor, the lower end of the drilling shaft extends out of the bottom of the lifting seat, and a punching column for drilling is detachably provided at the end of the drilling shaft, so that when the lifting seat moves downward, the drilling motor drives the drilling shaft to rotate, and the drilling shaft drives the punching column to open a sowing hole to be sown on the ground;

[0008] The sowing component includes a sliding opening opened on the left side of the base, a sowing tube is provided in the sliding opening, a material guiding cavity for buffering seeds is provided inside the sowing tube, the lower end of the material guiding cavity is an open structure, and a blocking block for constructing a conical channel is provided on the inner wall of the material guiding cavity close to the opening, a blocking column for blocking the falling of seeds is provided in the conical channel, the lower end of the blocking column passes through the blocking block, one side of the blocking column is fixedly connected to the surface of the base through a positioning rod, and the feed port of the material guiding cavity is connected to the feeding mechanism.

[0009] As a further solution of the present invention: the lever member includes a swinging plate rotatably arranged on the top of the middle plate, the left and right ends of the swinging plate are symmetrically provided with sliding holes, a sliding cross bar is cooperated in the sliding hole, and a transmission rod connected to the top of the punching member or the spreading member is rotatably provided at the end of the sliding cross bar, and the fixed frame is provided with a switching drive member for driving the left and right ends of the protrusion to intermittently rise and fall.

[0010] As a further solution of the present invention: the switching drive member includes a sliding block slidably arranged at the top of the fixed frame, and the left and right ends of the sliding block are penetrated by transmission screw holes, and a transmission screw is cooperated in the transmission screw hole, the left end of the transmission screw is rotatably connected to the inner wall of the fixed frame, and the right end thereof is connected and fixed to the output end of the driving motor, and a pressure wheel is installed at the lower end of the sliding block through a telescopic member, and a protrusion that cooperates with the pressure wheel is cooperated with the top of the swing plate, and the protrusion is an arched structure.

[0011] As a further solution of the present invention: a rubber layer is provided on the outer side of the pressure wheel.

[0012] As a further solution of the present invention: the telescopic member includes a fixed rod connected to the sliding block, the sliding sleeve at the lower end of the fixed rod is provided with a fixed sleeve for installing the pressure wheel, and the fixed sleeve is provided with a compression spring for connecting the fixed rod and the fixed sleeve.

[0013] As a further solution of the present invention: the feeding mechanism includes a storage box arranged on a fixed frame for storing seeds, a discharge port at the lower end of the storage box is provided with a discharge solenoid valve, the discharge end of the discharge solenoid valve is connected to the feed port of the sowing cylinder through a material guiding hose, and the input end of the discharge solenoid valve is electrically connected to a trigger block arranged above the sowing cylinder.

[0014] As a further solution of the present invention: a longitudinal groove is opened on the side of the seeding tube to facilitate the positioning rod to slide up and down, and elastic rubber blocks for extrusion contact are arranged on both sides of the longitudinal groove, and the upper and lower end surfaces of the positioning rod are arc-shaped edges that are convenient for cutting the two elastic rubber blocks.

[0015] As a further solution of the present invention: a water spray nozzle is provided at the lower end of the seeding tube, the water spray nozzle is connected to a water supply box arranged on the base, a water pump is provided inside the water supply box, and a trigger end of the water pump is arranged on the lower left side of the swing plate.

[0016] As a further solution of the present invention: a load-bearing scale for detecting the weight of the material inside the storage box is provided at the bottom thereof, and the load-bearing scale is electrically connected to an alarm. When the seed content inside the storage box is lower than a preset value, the alarm will send out an alarm signal, thereby notifying the user to make corresponding replenishments.

[0017] As a further solution of the present invention: in order to ensure the feeding amount each time, the material guiding hose 33 is also provided with a flow valve for measuring the feeding amount, so that the amount of material discharged each time can be guaranteed.

[0018] As a further solution of the present invention: the base is also provided with a backfilling assembly for pushing the soil on both sides of the sowing hole into the sowing hole, and the backfilling assembly includes a displacement slider slidably arranged on the lower end surface of the base, and a displacement guide rod is slidably fitted in the through-hole of the displacement slider, and the displacement guide rod is arranged parallel to the wheel axle of the roller, and the two ends of the displacement guide rod are connected to the fixed block at the lower end of the base, and the displacement slider and the fixed block are connected and fixed by a displacement reset spring, and a lifting rod is provided at the lower end of the displacement slider, and a transmission shaft is rotatably provided at the lower end of the lifting rod through a bearing sleeve, and a friction transmission wheel is provided at one end of the transmission shaft, and the friction transmission wheel is an elliptical structure, and a toggle disk is rotatably provided at the other end of the transmission shaft, and a plurality of toggle plates for pushing soil blocks into the sowing hole for backfilling are distributed in an array on the outer side of the toggle disk.

[0019] The switching drive member is electrically connected to a controller, and the controller is electrically connected to a tachometer for detecting the rotational speed of the roller. In this way, when the roller travels at a faster speed, the controller will also control the drive motor to work at a faster speed, thereby increasing the speed of switching between the punching member and the sowing member to ensure that the seeds sown by the sowing member can enter the holes processed by the punching member.

[0020] A sowing method of an automatic sowing device for agriculture: seeds to be sown are placed inside a storage box, and when the base moves, when the sliding block drives the pressing wheel to press the protrusion left and right, when it moves to the right, the swing plate will drive the punching part to move downward to complete the punching operation, and when it moves to the left, the swing plate will drive the sowing part to move downward, and when the sowing tube descends and enters the hole opened by the punching part, at this time, since the blocking column is fixedly connected to the base, its height remains unchanged, but the blocking block will move downward with the sowing tube, so that the lower end of the blocking column will move above the blocking block, which will eliminate the blockage of the conical channel, and the seeds will quickly fall along the sowing tube into the hole, thereby completing the sowing operation, and when the left end of the swing plate descends, it will trigger the trigger end of the water pump, and the water pump can perform a water spraying operation to replenish water for the seeds.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention is designed to address the drawbacks of existing devices, and divides the traditional integrated operation of punching and sowing into two operations: punching and sowing, thereby ensuring the quality of the punched holes and avoiding the problem of clogging of the sowing end during sowing, thereby ensuring the sowing efficiency;

[0023] The drilling shaft used for drilling holes in the present application can be replaced, so that holes of different diameters or depths can be drilled according to one's own needs to meet the needs of different sowing;

[0024] In the present application, feeding and water spraying operations are triggered by moving the seeding cylinder up and down, which simplifies the seeding procedure and improves the seeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the bottom of the present invention.

[0027] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0028] Figure 4 It is a structural schematic diagram of the telescopic member in the present invention.

[0029] Figure 5 It is a partial enlarged view of the structure of the present invention.

[0030] Figure 6 It is a structural diagram of the backfill component in the present invention.

[0031] Wherein: base 11, roller 12, seeding tube 13, blocking block 14, middle plate 15, punching column 16, drilling shaft 17, drilling motor 18, lifting seat 19, sliding cross bar 20, swing plate 21, protrusion 22, driving motor 23, fixing frame 24, transmission screw 25, sliding block 26, fixing rod 27, fixing sleeve 28, pressing wheel 29, storage box 30, unloading solenoid valve 31, trigger block 32, material guide hose 33, material guide cavity 34, blocking column 35, positioning rod 36;

[0032] Displacement slider 1201, return spring 1202, lifting rod 1203, earth-moving plate 1204, shifting plate 1205, bearing sleeve 1206, friction transmission wheel 1207. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0036] See also Figure 1-6 In an embodiment of the present invention, an automatic sowing device for agriculture comprises a base 11 and legs symmetrically arranged on both sides of the lower end thereof, each leg being provided with a roller 12 for walking, the input end of the roller 12 being connected to a walking motor for driving the roller 12 to rotate, a fixing frame 24 being mounted on the upper end of the base 11, an intermediate plate 15 being fixed at the middle position of the upper end surface of the base 11 below the fixing frame 24, a sowing member for sowing seeds and a punching member for drilling holes on the ground being provided on the left and right sides of the intermediate plate 15, respectively, the punching member and the sowing member being connected by a lever member, and the lever member being used to realize the alternation of the two workings, this sowing method separates the sowing and punching steps, and the punching here is in the form of drilling, which reduces the difficulty of punching, ensures the looseness of the inner wall of the punching, and is conducive to the later growth of seeds, and the sowing here is to extend into the already punched hole, so there will be no problem of clogging of the lower port of the sowing tube 13, which effectively solves the problems existing in the prior art and improves the processing efficiency;

[0037] Generally, when sowing, the diameter of the punching column 16 is changed to be larger than the diameter of the sowing cylinder 13, so as to avoid the problem of interference during sowing;

[0038] The punching member includes a sliding opening opened at the upper end of the base 11, and a lifting seat 19 is provided at the sliding opening. A drilling motor 18 is provided inside the lifting seat 19, and a drilling shaft 17 is provided at the output end of the drilling motor 18. The lower end of the drilling shaft 17 extends out of the bottom of the lifting seat 19, and a punching column 16 for drilling is detachably provided at the end of the drilling shaft 17, so that when the lifting seat 19 moves downward, the drilling motor 18 will drive the drilling shaft 17 to rotate, and the drilling shaft 17 drives the punching column 16 to open a sowing hole to be sown on the ground;

[0039] It should be noted that the perforated column 16 here is replaceable, so that the user can replace the perforated column 16 of corresponding diameter according to his own needs, thereby processing sowing holes of different diameters;

[0040] The sowing member includes a sliding opening opened on the left side of the base 11, in which a sowing cylinder 13 is provided, and a guide cavity 34 for buffering seeds is provided inside the sowing cylinder 13, and the lower end of the guide cavity 34 is an open structure, and a block 14 for constructing a tapered channel is provided on the inner wall of the guide cavity 34 near the opening, and a blocking column 35 for blocking the falling of seeds is provided in the tapered channel, and the lower end of the blocking column 35 passes through the block 14, and one side of the blocking column 35 is fixedly connected to the surface of the base 11 through a positioning rod 36, and the feed port of the guide cavity 34 is connected to the feeding mechanism;

[0041] When the seeding barrel 13 descends and enters the hole opened by the punching member, at this time, since the blocking column 35 is fixedly connected to the base 11, its height remains unchanged, but the blocking block 14 moves downward with the seeding barrel 13, so that the lower end of the blocking column 35 moves above the blocking block 14, which eliminates the blockage of the tapered channel, and the seeds quickly fall along the seeding barrel 13 into the hole, thereby completing the seeding operation;

[0042] It should be noted that the working gap between the spreading piece and the punching piece here needs to be adjusted according to the walking speed to ensure that the spreading piece and the holes punched by the punching piece are perfectly connected;

[0043] The lever member includes a swing plate 21 rotatably arranged on the top of the middle plate 15, and the swing plate 21 has sliding holes symmetrically arranged on the left and right ends, and a sliding cross bar 20 is matched in the sliding hole, and a transmission rod connected to the top of the punching member or the spreading member is rotatably arranged at the end of the sliding cross bar 20, and a switching driving member for driving the left and right ends of the protrusion 22 to intermittently rise and fall is arranged on the fixing frame 24;

[0044] Under the action of the switching drive member, the swing plate 21 will rotate around the top of the middle plate 15, thereby driving the sowing member and the punching member to move downward in turn to complete the corresponding sowing operation;

[0045] The switching drive member includes a sliding block 26 slidably arranged at the top of the fixed frame 24, and transmission screw holes are penetrated at the left and right ends of the sliding block 26. A transmission screw 25 is matched in the transmission screw hole. The left end of the transmission screw 25 is rotatably connected to the inner wall of the fixed frame 24, and the right end is connected and fixed to the output end of the driving motor 23. Under the action of the driving motor 23, the transmission screw 25 and the sliding block 26 rotate relative to each other. Under the action of the thread, the sliding block 26 slides along the inner wall of the fixed frame 24. A pressing wheel 29 is installed at the lower end of the sliding block 26 through a telescopic member. A protrusion 22 matching the pressing wheel 29 is matched at the top of the swing plate 21, and the protrusion 22 is an arched structure;

[0046] When the sliding block 26 drives the pressing wheel 29 to press the protrusion 22 to move left and right, when it moves to the left, the swing plate 21 will drive the sowing member to move downward to complete the sowing operation, and when it moves to the right, the swing plate 21 will drive the punching member to move downward to complete the punching operation;

[0047] The outer side of the pressing wheel 29 is provided with a rubber layer to reduce the wear between the components;

[0048] The switching drive member is electrically connected to a controller, and the controller is electrically connected to a tachometer for detecting the rotation speed of the roller 12. When the roller 12 moves at a faster speed, the controller will also control the drive motor 23 to work at a faster speed, thereby increasing the switching speed between the punching member and the sowing member to ensure that the seeds sown by the sowing member can enter the holes processed by the punching member.

[0049] The telescopic member includes a fixed rod 27 connected to the sliding block 26, and a fixed sleeve 28 for mounting a pressing wheel 29 is provided on the sliding sleeve at the lower end of the fixed rod 27. A compression spring for connecting the fixed rod 27 and the fixed sleeve 28 is provided inside the fixed sleeve 28. When the pressing wheel 29 is in contact with the protrusion 22, the compression spring is in a compressed state, thereby providing a driving force for the rotation switching of the swing plate 21.

[0050] The feeding mechanism includes a storage box 30 for storing seeds arranged on the fixed frame 24, and a discharge solenoid valve 31 is provided at the discharge port position at the lower end of the storage box 30. The discharge end of the discharge solenoid valve 31 is connected to the feed port of the sowing cylinder 13 through a material guide hose 33, and the input end of the discharge solenoid valve 31 is electrically connected to a trigger block 32 arranged above the sowing cylinder 13. Whenever the sowing cylinder 13 moves upward to touch the trigger block 32, the discharge solenoid valve 31 will be triggered to open for a period of time, so that the material inside the storage box 30 will enter the inside of the material guide cavity 34 along the material guide hose 33 to wait for later sowing;

[0051] The bottom of the storage box 30 is provided with a load-bearing meter for detecting the weight of the material inside. The load-bearing meter is electrically connected to an alarm. When the seed content inside the storage box 30 is lower than a preset value, the alarm will send out an alarm signal, thereby notifying the user to make corresponding replenishments.

[0052] The side of the seeding tube 13 is provided with a longitudinal groove for facilitating the upward and downward sliding of the positioning rod 36, and elastic rubber blocks for extrusion contact are provided on both sides of the longitudinal groove. The upper and lower end faces of the positioning rod 36 are arc-shaped edges for facilitating the cutting of the two elastic rubber blocks. This design method can facilitate the positioning rod 36 to pass through the outer wall of the seeding tube 13, and also ensure that the seeds will not leak out along the longitudinal groove.

[0053] In order to improve the survival rate of sowing, a water nozzle is provided at the lower end of the sowing tube 13, and the water nozzle is connected to the water supply tank arranged on the base 11. A water pump is provided inside the water supply tank, and the trigger end of the water pump is arranged on the lower left side of the swing plate 21. When the left end of the swing plate 21 drops, the trigger end of the water pump will be triggered, and the water pump can perform a water spraying operation, thereby replenishing water for the seeds.

[0054] In order to ensure the amount of material supplied each time, the material guide hose 33 is also provided with a flow valve for measuring the amount of material supplied, so that the amount of material discharged each time can be ensured; Example

[0055] The difference from Example 1 is that: the base 11 is also provided with a backfilling assembly for pushing the soil on both sides of the sowing hole into the sowing hole, and the backfilling assembly includes a displacement slider 1201 slidably arranged on the lower end surface of the base 11, and a displacement guide rod is slidably matched in the through hole of the displacement slider 1201, and the displacement guide rod is arranged parallel to the axle of the roller 12, and the two ends of the displacement guide rod are connected to the fixed block at the lower end of the base 11, and the displacement slider 1201 is connected and fixed to the fixed block through a displacement return spring 1202, and a hoisting rod 1203 is provided at the lower end of the displacement slider 1201, and a transmission shaft is rotatably arranged at the lower end of the hoisting rod 1203 through a bearing sleeve 1206, and a friction transmission wheel 1207 is provided at one end of the transmission shaft, and the friction transmission wheel 1207 is an elliptical structure, and a toggle plate 1205 is rotatably arranged at the other end of the transmission shaft, and a plurality of soil-moving plates 1204 for pushing soil blocks into the sowing hole for backfilling are distributed in an array on the outer side of the toggle plate 1205;

[0056] During actual movement, the friction force between the side of the roller 12 and the friction transmission wheel 1207 is used to drive the toggle plate 1205 to achieve the backfilling operation. Since the friction transmission wheel 1207 is an elliptical structure, the displacement slider 1201 will reciprocate along the displacement guide rod, thereby further improving the backfilling effect.

[0057] The working principle of the present invention is: the seeds to be sown are placed inside the storage box 30, and when the base 11 moves, when the sliding block 26 drives the pressing wheel 29 to press the protrusion 22 to move left and right, when it moves to the right side, the swing plate 21 will drive the punching member to move downward to complete the punching operation, and when it moves to the left side, the swing plate 21 will drive the sowing member to move downward, and when the sowing tube 13 descends and enters the hole opened by the punching member, at this time, since the blocking column 35 is fixedly connected to the base 11, its height remains unchanged, but the blocking block 14 will move downward with the sowing tube 13, so that the lower end of the blocking column 35 will move to above the blocking block 14, which will eliminate the blockage of the conical channel, and the seeds will quickly fall along the sowing tube 13 into the hole, thereby completing the sowing operation, and when the left end of the swing plate 21 descends, it will trigger the trigger end of the water pump, and the water pump can perform a water spraying operation to replenish water for the seeds.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic seeding device for agriculture, comprising a base (11) and legs symmetrically arranged on both sides of the lower end thereof, each leg being provided with a roller (12) for traveling, the input end of the roller (12) being connected to a traveling motor for driving the roller (12) to rotate, characterized in that: A fixing frame (24) is mounted on the upper end of the base (11); an intermediate plate (15) is fixed at the middle position of the upper end surface of the base (11) below the fixing frame (24); a sowing member for sowing seeds and a punching member for drilling holes on the ground are respectively provided on the left and right sides of the intermediate plate (15); the punching member and the sowing member are connected by a lever member, and the lever member is used to drive the punching member and the sowing member to work alternately; The punching member comprises a sliding opening formed at the upper end of the base (11), a lifting seat (19) being provided at the sliding opening, a drilling motor (18) being provided inside the lifting seat (19), a drilling shaft (17) being provided at the output end of the drilling motor (18), the lower end of the drilling shaft (17) extending out of the bottom of the lifting seat (19), and a punching column (16) for drilling holes being detachably provided at the end of the drilling shaft (17); The sowing member comprises a sliding opening opened on the left side of the base (11), wherein a sowing tube (13) is provided in the sliding opening, wherein a guide cavity (34) for buffering seeds is provided inside the sowing tube (13), wherein the lower end of the guide cavity (34) is an open structure, and a block (14) for constructing a conical channel is provided on the inner wall of the guide cavity (34) close to the opening, wherein a block (14) is provided, and wherein the conical channel is provided with a block column (35) for blocking the seeds from falling, wherein the lower end of the block column (35) passes through the block (14), wherein one side of the block column (35) is fixedly connected to the surface of the base (11) through a positioning rod (36), and the feed port of the guide cavity (34) is connected to a feeding mechanism; wherein a water spray nozzle is provided at the lower end of the sowing tube (13), wherein the water spray nozzle is connected to a water supply tank provided on the base (11), wherein a water pump is provided inside the water supply tank, and wherein a trigger end of the water pump is provided at the lower left side of the swing plate (21); The lever member comprises a swing plate (21) rotatably arranged on the top of the middle plate (15), the swing plate (21) is symmetrically provided with sliding holes at both ends, a sliding cross bar (20) is matched in the sliding hole, a transmission rod connected to the top of the punching member or the spreading member is rotatably arranged at the end of the sliding cross bar (20), and a switching driving member for driving the left and right ends of the protrusion (22) to intermittently rise and fall is provided on the fixing frame (24); The switching drive member comprises a sliding block (26) slidably arranged at the top of the fixed frame (24), the sliding block (26) having transmission screw holes penetrating the left and right ends, a transmission screw (25) being matched in the transmission screw hole, the left end of the transmission screw (25) being rotatably connected to the inner wall of the fixed frame (24), and the right end of the transmission screw (25) being connected and fixed to the output end of the driving motor (23), a pressing wheel (29) being installed at the lower end of the sliding block (26) through a telescopic member, a protrusion (22) matching with the pressing wheel (29) being matched at the top of the swing plate (21), the protrusion (22) being in an arched structure, and a rubber layer being provided on the outer side of the pressing wheel (29); The base (11) is also provided with a backfilling assembly for pushing soil on both sides of the sowing hole into the sowing hole, and the backfilling assembly comprises a displacement slider (1201) slidably arranged on the lower end surface of the base (11), a displacement guide rod is slidably engaged in the through hole of the displacement slider (1201), the displacement guide rod is arranged parallel to the wheel axle of the roller (12), both ends of the displacement guide rod are connected to the fixed block at the lower end of the base (11), and the displacement slider (1201) and the fixed block are fixedly connected via a displacement return spring (1202). The displacement slider (1201) is provided with a lifting rod (1203) at the lower end, and a transmission shaft is rotatably provided at the lower end of the lifting rod (1203) through a bearing sleeve (1206), and a friction transmission wheel (1207) is provided at one end of the transmission shaft, and the friction transmission wheel (1207) is an elliptical structure, and a toggle plate (1205) is rotatably provided at the other end of the transmission shaft, and a plurality of soil-moving plates (1204) for pushing soil blocks into the seeding hole for backfilling are distributed in an array outside the toggle plate (1205).

2. The automatic seeding device for agriculture according to claim 1, characterized in that: The telescopic member comprises a fixed rod (27) connected to a sliding block (26); a fixed sleeve (28) for mounting a pressing wheel (29) is provided on a sliding sleeve at the lower end of the fixed rod (27); a compression spring for connecting the fixed rod (27) and the fixed sleeve (28) is provided inside the fixed sleeve (28); the switching drive member is electrically connected to a controller; the controller is electrically connected to a tachometer for detecting the rotation speed of the roller (12); when the roller (12) moves at a faster speed, the controller will also control the drive motor (23) to work at a faster speed, thereby increasing the speed of switching between the punching member and the sowing member.

3. The automatic seeding device for agriculture according to claim 1, characterized in that: The feeding mechanism comprises a storage box (30) arranged on a fixed frame (24) for storing seeds, a discharge port at the lower end of the storage box (30) is provided with a discharge solenoid valve (31), the discharge end of the discharge solenoid valve (31) is connected to the feed port of the sowing cylinder (13) through a material guide hose (33), and the input end of the discharge solenoid valve (31) is electrically connected to a trigger block (32) arranged above the sowing cylinder (13).

4. The automatic seeding device for agriculture according to claim 1, characterized in that: The side of the sowing cylinder (13) is provided with a longitudinal groove for facilitating the upward and downward sliding of the positioning rod (36), and elastic rubber blocks for extrusion contact are provided on both sides of the longitudinal groove. The upper and lower end surfaces of the positioning rod (36) are arc-shaped edges for facilitating the cutting of the two elastic rubber blocks.

5. The automatic agricultural sowing device according to any one of claims 1 to 4, characterized in that: The seeds to be sown are placed inside the storage box (30). When the base (11) moves, the sliding block (26) drives the pressing wheel (29) to press the protrusion (22) to move left and right. When it moves to the right side, the swing plate (21) drives the punching member to move downward to complete the punching operation. When it moves to the left side, the swing plate (21) drives the sowing member to move downward. When the sowing tube (13) descends and enters the hole opened by the punching member, at this time, since the blocking column (35) is fixedly connected to the base (11), its height remains unchanged, but the blocking block (14) moves downward with the sowing tube (13), so that the lower end of the blocking column (35) moves to the top of the blocking block (14), so that the blockage of the conical channel is eliminated, and the seeds quickly fall along the sowing tube (13) into the hole, thereby completing the sowing operation. When the left end of the swing plate (21) descends, it triggers the trigger end of the water pump, and the water pump can perform a water spraying operation, thereby replenishing water for the seeds.

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