Agricultural sowing device

Abstract

The present invention discloses an agricultural sowing device, which includes: a puncher arranged on a frame, which is used to punch a hole; a fixing component, which is used to horizontally set and fix the film; a film cutting component, which includes two mutually hinged cutting half frames, and the cutting half frames are assembled in the following stations: the first station: the two ends of the cutting half frame are flipped and fitted to the film, flipped from a horizontal state to a vertical state and the film is cut. Specifically, it relates to agricultural sowing equipment. When the hole is covered with film, the invention cuts the film into a film of a suitable hole size by cutting the half frame, and then inserts the film into the inner wall of the hole for fixing. The insertion type fixation has a good fixing effect on the holes with less soil piled on both sides punched by the puncher, and has low requirements for soil piled on both sides. At the same time, the film is cut separately, and each hole is covered with film, which can unlock the film and adapt to different hole spacings.

Description

Technical Field

[0001] The invention relates to the technical field of frames, and in particular to an agricultural sowing device. Background Art

[0002] A seeder is a machine that integrates furrowing, sowing and soil covering operations. In order to facilitate autumn sowing operations, a covering mechanism will be added to the frame to perform film covering and film cutting operations after covering the soil, thereby reducing manual workload.

[0003] According to patent number CN116868729A, publication (announcement) date: 2023-10-13, a sowing device that is convenient for soiling and film breaking is disclosed, including an equipment frame, a seeding part and a sowing part, the sowing part is installed on the equipment frame, the sowing part includes a sowing wheel and an elastic pressing opening and closing mechanism, the sowing wheel is a basin-shaped structure, the sowing wheel is rotatably connected to the equipment frame, a plurality of seeding openings are opened along the circumference of the side wall of the sowing wheel, a plurality of elastic pressing opening and closing mechanisms are arranged along the circumference of the sowing wheel, the elastic pressing opening and closing mechanism is fixedly installed on the outer side of the side wall of the sowing wheel and is located at the seeding opening, the seeding part is fixedly installed on the sowing wheel and is connected to the seeding opening, and also includes a soil covering part, the soil covering part includes a soil throwing plate, the soil throwing plate is fixedly installed on the outer side of the sowing wheel, the soil throwing plate is inclined outward relative to the sowing wheel, and a plurality of soil covering holes are opened along the circumference of the side wall of the sowing wheel, and the soil covering holes are arranged adjacent to the seeding opening. The problem of poor seed covering effect of the existing frame is solved.

[0004] In the prior art including the above-mentioned patent, film covering operations can be divided into flat-bed covering, high-bed covering, furrow-seeding slope covering and pit covering, etc., among which pit covering refers to sowing after punching holes on different types of bed surfaces with a punch. The holes punched by the punch have less soil at the edges, and it is difficult to fix the film when covering the holes, which can easily cause the film to loosen. Summary of the invention

[0005] The object of the present invention is to provide an agricultural sowing device, aiming to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an agricultural sowing device, comprising:

[0007] A drill, which is used to drill a hole;

[0008] A fixing assembly, which is used to horizontally set and fix the film;

[0009] The film cutting assembly comprises two mutually hinged cutting half frames, and the cutting half frames are assembled at the following stations:

[0010] First station: both ends of the cut half frame are turned over and attached to the film, turned from a horizontal state to a vertical state and the film is cut;

[0011] Second station: the two hinge points of the cut half frames move in the vertical direction to drive the two ends of the cut half frames to separate and insert into the inner wall of the pit, and return to a horizontal state;

[0012] The third station: the two cut half frames in the horizontal state are lifted up to fix the film on the pit.

[0013] Preferably, it further comprises a driving assembly disposed on the frame, wherein the driving assembly comprises a first push-resistance frame and a second push-resistance frame;

[0014] Wherein, the second pushing and abutting frame is driven to push the two ends of the cut half frame to switch to the first working position, and then the first pushing and abutting frame is driven to push the hinge point to switch to the second working position.

[0015] Preferably, a slide groove is provided on the second push frame, a tensioning strip is provided on the cutting half frame, a fitting wheel is provided on the tensioning strip, and a limiting rod is provided between the fitting wheel and the slide groove to enable the fitting wheel to move along the axial direction of the slide groove.

[0016] Preferably, the driving assembly further comprises a push rod, which is driven to move in a vertical direction and drives the second push frame to move, and the push rod pushes the first push frame and is decoupled from the second push frame.

[0017] Preferably, a sliding frame is provided on the push rod, and a sliding frame is symmetrically provided on the sliding frame, the sliding frame is coupled to the second push frame, an arc-shaped spring sheet is provided between the two sliding frames, and closing blocks are symmetrically provided at both ends of the sliding frame, and the closing blocks approach each other as the push rod moves, so as to drive the arc-shaped spring sheet to pull the sliding frame to decouple the second push frame.

[0018] Preferably, a watering port is provided on the cutting half frame, and when the cutting half frame is switched to the second working position, water flows out of the watering port.

[0019] Preferably, the first push-and-remove frame is fixedly connected to a water tank on the frame, and a fitting opening is provided on the first push-and-remove frame, and the fitting opening corresponds to a water inlet groove provided on the cut-off half frame.

[0020] Preferably, a plurality of fixing spikes are provided in a linear array on the cut half frame, and the fixing spikes are provided with sloped barbs.

[0021] Preferably, the film cutting assembly further comprises a rotation center, the cutting half frame is rotationally connected to the rotation center, blocking blocks are symmetrically arranged on the rotation center, and the cutting half frame is flipped to fit the blocking blocks to maintain a horizontal state.

[0022] Preferably, the fixing assembly comprises a fixing plate and a central roller for carrying the film, a pulling frame is fixedly connected to the fixing plate via a pulling member, and the central roller is rotatably connected to the pulling frame.

[0023] In the above technical scheme, an agricultural sowing device provided by the present invention has the following beneficial effects: when covering the hole with film, the film is cut into films of suitable hole size by cutting off half the frame, and then the film is inserted into the inner wall of the hole for fixation. The insertion type fixation has a good fixing effect on the holes with less soil piled on both sides punched by the eyelet puncher, and the requirement for soil piled on both sides is low. At the same time, the film is cut separately and each hole is covered with film, which can unlock the film and adapt to different hole spacings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of a membrane cutting assembly provided in an embodiment of the present invention;

[0026] Figure 2 An overall schematic diagram provided for an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of an explosion of a membrane breaking assembly provided in an embodiment of the present invention;

[0028] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0029] Figure 5 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0030] Figure 6 A schematic diagram of the structure of the first retainer and the second retainer provided in an embodiment of the present invention;

[0031] Figure 7 for Figure 6 The enlarged schematic diagram at C in the middle;

[0032] Figure 8 A schematic cross-sectional view of a membrane cutting assembly provided in an embodiment of the present invention;

[0033] Fig. 9 for Figure 8 The enlarged schematic diagram at D in the middle;

[0034] Fig.10A schematic diagram of a film cutting assembly and a fixing assembly provided in an embodiment of the present invention;

[0035] Fig.11 A schematic cross-sectional view of a first push-and-resist frame and a cut-off half frame provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Frame; 11. Telescopic motor; 12. Drill; 13. Water tank; 2. Driving assembly; 20. Connecting frame; 21. First push-pull frame; 211. Guide spring column; 212. Water inlet pipe; 213. Stomatosis; 22. Second push-pull frame; 221. Slant slot group; 222. Slide slot; 23. Push-pull rod; 231. Slide frame; 232. Closing block; 233. Arc spring piece; 24. Sliding frame; 241. Rotating slot; 2 5. Coupling block; 3. Fixed assembly; 31. Film; 32. Fixed plate; 321. Pulling frame; 33. Center roller; 41. Cutting half frame; 411. Fixed thorn; 412. Slope barb; 413. Sprinkler; 414. Water inlet trough; 415. Shielding spring plate; 42. Guide sleeve; 421. Center rod; 422. Damping element; 43. Center of rotation; 431. Stop block; 44. Tension strip; 441. Limiting rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] like Figure 1-11 As shown, an agricultural sowing device comprises:

[0040] Drill 12, used to drill a hole:

[0041] A fixing assembly 3, which is used to horizontally arrange and fix the film 31;

[0042] The film cutting assembly comprises two mutually hinged cutting half frames 41, and the cutting half frames 41 are assembled at the following stations:

[0043] First station: Cut the two ends of the half frame 41 and flip them toward the film 31 to fit them, flip them from the horizontal state to the vertical state and cut the film 31;

[0044] Second station: The hinge points of the two cutting half frames 41 are moved in the vertical direction to drive the two ends of the cutting half frames 41 to separate and insert into the inner wall of the pit, and return to the horizontal state;

[0045] The third station: the two cut half frames 41 in the horizontal state are lifted up to fix the film 31 on the hole.

[0046] Specifically, a telescopic motor 11 is provided on the frame 1, and the output end of the telescopic motor 11 is fixedly connected to the eye drill 12. The telescopic motor 11 drives the eye drill 12 to punch holes in the ground to facilitate subsequent sowing and covering operations. After the frame 1 punches the holes, it continues to move, sows and covers the holes, and when film covering operations are required, the film cutting component is aligned with the hole that has completed the preliminary covering (a depth of 50mm to 80mm is required to remain after the hole is covered). At this time, the cutting half frame 41 is in a default state, and the default state is that the two cutting half frames 41 are in a horizontal state, and then the two ends are driven to move. At this time, the hinge points of the cut half frame 41 do not move, and the cut half frames 41 at both ends are flipped downward and closed to tear off the film 31 and cut it to the first work station. Then, the hinge points of the two cut half frames 41 are pushed in the vertical direction, so that the two ends of the cut half frame 41 move toward the inner wall of the pit and insert, so that the cut film 31 is expanded and pulled as the two ends of the cut half frame 41 are inserted, and the covering is completed when the cut half frame 41 returns to the horizontal state. Finally, the two cut half frames 41 in the horizontal state are lifted up, and the soil will fall when lifting up to separate the film 31 and the cut half frame 41 to complete the fixation of the film 31.

[0047] Furthermore, the frame 1 is a seed drill, which is a prior art and will not be described in detail.

[0048] In the above technical solution, when the pit is coated, the film 31 is cut into films 31 of suitable pit size by cutting off the half frame 41, and then the film 31 is inserted into the inner wall of the pit for fixation. The insertion type fixation has a good fixing effect on the pits with less soil piled on both sides punched by the drill 12, and has low requirements for soil piled on both sides, is more suitable for pit use, and does not require soil filling later. At the same time, the film 31 is cut separately and coated on each pit, which can unlock the film 31 and adapt to different pit spacings.

[0049] As an embodiment provided by the present invention, it also includes a driving assembly 2 arranged on the frame 1, and the driving assembly 2 includes a first push and abutment frame 21 and a second push and abutment frame 22;

[0050] The second pushing and abutting frame 22 is driven to push the two ends of the cutting half frame 41 to switch to the first working position, and then the first pushing and abutting frame 21 is driven to push the hinge point to switch to the second working position.

[0051] Specifically, a center rod 421 is provided on the frame 1, and a guide sleeve 42 is slidably connected to the center rod 421, and an elastic member is provided between the two. A damping member 422 is provided on the center rod 421, and the damping member 422 is provided on the cutting half frame 41 to maintain the position of the second push frame 22 when the second push frame 22 stops pushing, so as to realize the movement of the third workstation. A connecting frame 20 is provided on the frame 1, and a guide spring column 211 is provided on the first push frame 21, and the guide spring column 211 is slidably connected to the connecting frame 20, and an elastic member is provided between the two for pulling the first push frame 21 to reset.

[0052] The film cutting assembly is aligned with the pit that has been preliminarily covered with soil. At this time, the cutting half frame 41 is in the default state. Then the second pushing and resisting frame 22 first moves to push the two ends of the cutting half frame 41 to move, while the hinge points of the cutting half frame 41 do not move. The cutting half frames 41 at both ends flip down and close to tear off the film 31, and switch to the first workstation. Then the second pushing and resisting frame 22 stops moving, and the first pushing and resisting frame 21 pushes instead, so that the hinge points of the two cutting half frames 41 are pushed in the vertical direction, so that the two ends of the cutting half frame 41 move toward the inner wall of the pit and insert, so that the cut film 31 is expanded and pulled as the two ends of the cutting half frame 41 are inserted, and the covering is completed when the cutting half frame 41 returns to the horizontal state. Finally, the first pushing and resisting frame 21 and the second pushing and resisting frame 22 are lifted up at the same time, so that the two cutting half frames 41 in the horizontal state are lifted up, and the soil will fall when lifting up to separate the film 31 and the cutting half frame 41 to complete the fixation of the film 31.

[0053] As an embodiment provided by the present invention, a slide groove 222 is arranged on the second push-resist frame 22, a tensioning strip 44 is arranged on the cutting half frame 41, a fitting wheel is arranged on the tensioning strip 44, and a limiting rod 441 is arranged between the fitting wheel and the slide groove 222, so that the fitting wheel moves along the axial direction of the slide groove 222.

[0054] Specifically, the tensioning strip 44 is an elastic strip, one end of the limiting rod 441 is rotatably connected to the fitting wheel, and the other end of the limiting rod 441 is slidably connected to the slide groove 222. When the cutting half frame 41 moves in the second workstation, the second push-resistance frame 22 is restricted by the damping member 422. At this time, the fitting wheel will be restricted by the limiting rod 441 to slide along the slide groove 222, so that when the hinge point of the cutting half frame 41 moves downward, the two ends of the cutting half frame 41 are restricted from expanding outward, so as to realize the action of inserting the two ends of the cutting half frame 41 into the pit and make the cutting half frame 41 return to a horizontal state.

[0055] The film cutting assembly is aligned with the hole that has been preliminarily covered with soil. At this time, the cutting half frame 41 is in the default state. Then the second pushing frame 22 first moves to push the two ends of the cutting half frame 41, while the hinge points of the cutting half frame 41 do not move. The cutting half frames 41 at both ends flip down and close to tear off the film 31, and switch to the first working position. Then the second pushing frame 22 stops moving and is pushed by the first pushing frame 21, so that the hinge points of the two cutting half frames 41 are pushed in the vertical direction. At this time, the bonding wheel will be limited. The control rod 441 is restricted to slide along the slide groove 222, so that the two ends of the cut half frame 41 move toward the inner wall of the pit and are inserted, so that the cut film 31 is expanded and pulled as the two ends of the cut half frame 41 are inserted, and the covering is completed when the cut half frame 41 returns to a horizontal state. Finally, the first push-pull frame 21 and the second push-pull frame 22 are lifted up at the same time, so that the two horizontal cut half frames 41 are lifted up, and the soil will fall when lifting up to separate the film 31 and the cut half frame 41 to complete the fixation of the film 31.

[0056] As an embodiment provided by the present invention, the driving assembly 2 further includes a push rod 23, the push rod 23 is driven to move in the vertical direction and drives the second push frame 22 to move, the push rod 23 pushes the first push frame 21 and decouples from the second push frame 22;

[0057] A sliding frame 231 is provided on the push rod 23, and a sliding frame 24 is symmetrically provided on the sliding frame 231. The sliding frame 24 is coupled to the second push frame 22. An arc-shaped spring piece 233 is provided between the two sliding frames 24. Closing blocks 232 are symmetrically provided at both ends of the sliding frame 231. The closing blocks 232 approach each other as the push rod 23 moves, so as to drive the arc-shaped spring piece 233 to pull the sliding frame 24 to decouple the second push frame 22.

[0058] Specifically, another telescopic motor 11 is provided on the frame 1, and the push rod 23 is fixedly connected to the output end of the telescopic motor 11. The push rod 23 is driven by the telescopic motor 11 to move in the vertical direction. The sliding frame 24 is slidably connected to the sliding frame 231. An arc-shaped spring piece 233 is provided between the two sliding frames 24. The arc-shaped spring piece 233 protrudes between the two closing blocks 232. The first push frame 21 and the connecting frame 20 are both provided with a frame for limiting the closing block 232. When the sliding frame 231 is pushed by the push rod 23, it is at the first end (with Figure 1 For reference, the first end is the lower end and the second end is the upper end) the closing block 232 will approach the first push frame 21 until the conical frame squeezes the closing block 232 to make the arc-shaped spring piece 233 bend and pull the two sliding frames 24 closer to each other to decouple the second push frame 22 and the sliding frame 24. When the first push frame 21 and the second push frame 22 are lifted, the closing block 232 does not need to overcome the pushing force of the guide spring column 211 to push the first push frame 21, so that the closing block 232 will expand outward to recouple the sliding frame 24 to lift both at the same time.

[0059] Furthermore, the sliding frame 24 is provided with a linear array of rotation grooves 241, and the rotation grooves 241 are rotatably connected to the coupling blocks 25. The coupling blocks 25 are provided with elastic blocks on the side facing the rotation grooves 241. The second push-resist frame 22 is provided with an inclined groove group 221 that matches the coupling blocks 25. When the first push-resist frame 21 and the second push-resist frame 22 are lifted up at the same time, when they are lifted up for coupling, the upper inclined surface of the coupling block 25 is attached to the inclined groove group 221 for coupling (such as Fig. 9 The coupling position of the sliding frame 24 and the second push-resist frame 22 will change. As it is continuously lifted, the space between the center rod 421 and the guide sleeve 42 will gradually compress and disappear, making it impossible for the coupling block 25 to push the second push-resist frame 22 to move. At this time, the elastic block on the coupling block 25 is compressed to continue to move while causing the coupling block 25 to flip overload, thereby avoiding damage to the second push-resist frame 22. The two closing blocks 232 located at the second end of the sliding frame 231 will close together with the frame when passing through the connecting frame 20, thereby ensuring that the coupling position of the sliding frame 24 and the second push-resist frame 22 is the same when running the first station.

[0060] The film cutting assembly is aligned with the hole that has been preliminarily covered with soil. At this time, the cutting half frame 41 is in the default state. Then the pushing rod 23 pushes the sliding frame 231 to move. When the two closing blocks 232 pass through the connecting frame 20, the second pushing frame 22 is coupled and driven to move to push the two ends of the cutting half frame 41 to move, while the hinge point of the cutting half frame 41 does not move. The cutting half frames 41 at both ends are flipped downward and closed to tear off the film 31, and switch to the first working position. Then the closing block 232 at the first end will approach the first pushing frame 21 until the cone frame squeezes the closing block 232 to make the arc-shaped spring piece 233 bend and pull the two sliding frames 24 close to each other to decouple the second pushing frame 22 and the sliding frame 24, so that the second pushing frame 22 stops moving. , and the first pushing and resisting frame 21 is turned to push and resist, so that the hinge points of the two cut half frames 41 are pushed and resisted in the vertical direction. At this time, the fitting wheel will be restricted by the limiting rod 441 to slide along the slide groove 222, so that the two ends of the cut half frame 41 move toward the inner wall of the pit and insert, so that the cut film 31 is expanded and pulled as the two ends of the cut half frame 41 are inserted, and the covering is completed when the cut half frame 41 returns to the horizontal state. Finally, when lifting, the upper inclined surface of the coupling block 25 is fitted with the inclined groove group 221 to couple the first pushing and resisting frame 21 and the second pushing and resisting frame 22 to lift up at the same time, so that the two cut half frames 41 in the horizontal state are lifted up, and the soil will fall during the lifting to separate the film 31 and the cut half frame 41 to complete the fixation of the film 31.

[0061] As an embodiment provided by the present invention, a water sprinkling port 413 is provided on the cutting half frame 41, and when the cutting half frame 41 is switched to the second working position, water is discharged from the water sprinkling port 413;

[0062] The first push-and-resist frame 21 is fixedly connected to the water tank 13 on the frame 1 . A mating opening 213 is provided on the first push-and-resist frame 21 . The mating opening 213 corresponds to the water inlet groove 414 provided on the cut-off half frame 41 .

[0063] Specifically, a water inlet pipe 212 is provided on the first push-pull frame 21, and the water inlet pipe 212 is fixedly connected to the water tank 13 through a hose. A shielding spring plate 415 is provided on the water inlet groove 414, and one end of the shielding spring plate 415 is movable to prevent water loss in the absence of water pressure. When the cutting half frame 41 switches to the second station, it is in a vertical state. When the first push-pull frame 21 is docked with the cutting half frame 41, the water tank 13 supplies water to the first push-pull frame 21 through a water pump, so that the water in the first push-pull frame 21 enters the cutting half frame 41 from the anastomosis 213 along the water inlet groove 414. At this time, the cutting half frame 41 waters the pit through the sprinkler port 413 when it is vertically downward, and continues to spray water as the cutting half frame 41 flips to a horizontal state until the anastomosis 213 and the water inlet groove 414 are staggered. In the process, the land on both sides of the pit will be moistened, increasing the gravity of the soil and keeping it falling to assist the film 31 and the cutting half frame 41 to separate.

[0064] The film cutting assembly is aligned with the hole on which the preliminary covering has been completed. At this time, the cutting half frame 41 is in the default state, and then the pushing rod 23 pushes the sliding frame 231 to move. When the two closing blocks 232 pass through the connecting frame 20, the second pushing frame 22 is coupled and driven to move to push the two ends of the cutting half frame 41, while the hinge point of the cutting half frame 41 does not move. The cutting half frames 41 at both ends are flipped downward and closed to tear off the film 31, and switch to the first working position, and then the closing block 232 at the first end will approach the first pushing frame 21 until the conical frame squeezes the closing block 232 to make the arc-shaped spring piece 233 bend and pull the two sliding frames 24 close to each other to decouple the second pushing frame 22 and the sliding frame 24, so that the second pushing frame 22 stops moving, and is pushed by the first pushing frame 21, so that the hinge points of the two cutting half frames 41 are pushed in the vertical direction. During this period, when the first push-pull frame 21 is docked with the cutting half frame 41, the water in the first push-pull frame 21 enters the cutting half frame 41 from the anastomotic opening 213 along the water inlet groove 414 and is poured into the pit through the water sprinkling port 413. The push-pull fitting wheel of the first push-pull frame 21 is restricted by the restriction rod 441 to slide along the slide groove 222, so that the two ends of the cutting half frame 41 move toward the inner wall of the pit and are inserted, so that the cut film 31 is expanded and pulled as the two ends of the cutting half frame 41 are inserted, and the film 31 is pulled back to the cutting half frame 41. When the film 31 is in a horizontal state, the covering of the film 31 is completed. At the same time, the land on both sides of the pit will be moistened in the process, increasing the gravity of the soil and keeping it falling to assist the film 31 and the cut half frame 41 to separate. Finally, when lifting, the upper inclined surface of the coupling block 25 is coupled with the inclined groove group 221 to couple the first push frame 21 and the second push frame 22 to lift up at the same time, so that the two cut half frames 41 in the horizontal state are lifted up. When lifting, the soil will fall to separate the film 31 and the cut half frame 41 to complete the fixation of the film 31.

[0065] As an embodiment provided by the present invention, a plurality of fixing spikes 411 are arranged in a linear array on the cutting half frame 41 , and sloped barbs 412 are arranged on the fixing spikes 411 .

[0066] Specifically, the fixing spikes 411 assist in fixing the film 31 when the cut half frame 41 is flipped to a vertical state, and the sloped barbs 412 assist in cutting when piercing the film 31. When the film 31 is covered with soil, it can detach from the fixing spikes 411 along the oblique angle of the sloped barbs 412.

[0067] As an embodiment provided by the present invention, the film cutting assembly also includes a rotation center 43, and the cutting half frame 41 is rotatably connected to the rotation center 43. Stop blocks 431 are symmetrically arranged on the rotation center 43. The cutting half frame 41 is flipped and attached to the stop blocks 431 to maintain a horizontal state.

[0068] Specifically, the cutting half frame 41 is rotatably connected to the rotation center 43 , and the rotation center 43 is disposed on the guide sleeve 42 to fix the rotation point (ie, the hinge point) of the cutting half frame 41 , thereby limiting the second push-resist frame 22 .

[0069] As the optimal embodiment provided by the present invention, the fixing assembly 3 includes a fixing plate 32 and a center roller 33 for carrying the film 31 , the fixing plate 32 is fixedly connected to a pulling frame 321 via a pulling member, and the center roller 33 is rotatably connected to the pulling frame 321 .

[0070] Specifically, the fixed plate 32 is arranged on the frame 1, and the pulling member can be a spring. The pulling member continuously pulls the pulling frame 321 to ensure that the film 31 always fits the fixed plate 32 when winding to determine the position of the film 31. The two center rollers 33 are connected to the output end of the motor through a synchronous belt drive to ensure synchronous rotation and keep the film 31 fixed.

[0071] The film cutting assembly is aligned with the hole on which the preliminary covering has been completed. At this time, the cutting half frame 41 is in the default state, and then the pushing rod 23 pushes the sliding frame 231 to move. When the two closing blocks 232 pass through the connecting frame 20, the second pushing frame 22 is coupled and driven to move to push the two ends of the cutting half frame 41, while the hinge point of the cutting half frame 41 does not move. The cutting half frames 41 at both ends are flipped downward and closed to tear off the film 31, and switch to the first working position, and then the closing block 232 at the first end will approach the first pushing frame 21 until the conical frame squeezes the closing block 232 to make the arc-shaped spring piece 233 bend and pull the two sliding frames 24 close to each other to decouple the second pushing frame 22 and the sliding frame 24, so that the second pushing frame 22 stops moving, and is pushed by the first pushing frame 21, so that the hinge points of the two cutting half frames 41 are pushed in the vertical direction. During this period, when the first push-pull frame 21 is docked with the cutting half frame 41, the water in the first push-pull frame 21 enters the cutting half frame 41 from the anastomotic opening 213 along the water inlet groove 414 and is poured into the pit through the water sprinkling port 413. The push-pull fitting wheel of the first push-pull frame 21 is restricted by the restriction rod 441 to slide along the slide groove 222, so that the two ends of the cutting half frame 41 move toward the inner wall of the pit and are inserted, so that the cut film 31 is expanded and pulled as the two ends of the cutting half frame 41 are inserted, and the film 31 is pulled back to the cutting half frame 41. When the film 31 is in a horizontal state, the covering of the film 31 is completed. At the same time, the land on both sides of the pit will be moistened in the process, increasing the gravity of the soil and keeping it falling to assist the film 31 and the cut half frame 41 to separate. Finally, when lifting, the upper inclined surface of the coupling block 25 is coupled with the inclined groove group 221 to couple the first push frame 21 and the second push frame 22 to lift up at the same time, so that the two cut half frames 41 in the horizontal state are lifted up. When lifting, the soil will fall to separate the film 31 and the cut half frame 41 to complete the fixation of the film 31.

[0072] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An agricultural sowing device, characterized in that: They respectively include: A drill (12) for drilling a hole; A fixing assembly (3) for horizontally arranging and fixing the film (31); The film cutting assembly comprises two mutually hinged cutting half frames (41), wherein the cutting half frames (41) are assembled at the following stations: First station: both ends of the cutting half frame (41) are turned over and attached to the film (31), turned from a horizontal state to a vertical state and the film (31) is cut; Second workstation: the two hinge points of the cut half frames (41) are moved in the vertical direction to drive the two ends of the cut half frames (41) to separate and insert into the inner wall of the pit, and return to a horizontal state; The third workstation: the two cut half frames (41) in a horizontal state are lifted up to fix the film (31) on the hole.

2. An agricultural sowing device according to claim 1, characterized in that: It also includes a driving assembly (2) arranged on the frame (1), and the driving assembly (2) includes a first pushing frame (21) and a second pushing frame (22); The second pushing frame (22) is driven to push the two ends of the cut half frame (41) to switch to the first workstation, and then the first pushing frame (21) is driven to push the hinge point to switch to the second workstation.

3. An agricultural sowing device according to claim 2, characterized in that: The second push-pull frame (22) is provided with a slide groove (222), the cutting half frame (41) is provided with a tensioning strip (44), a fitting wheel is provided on the tensioning strip (44), and a limiting rod (441) is provided between the fitting wheel and the slide groove (222) to enable the fitting wheel to move along the axial direction of the slide groove (222).

4. The agricultural sowing device according to claim 2, characterized in that: The driving assembly (2) further comprises a push rod (23), wherein the push rod (23) is driven to move in a vertical direction and drives the second push frame (22) to move, and the push rod (23) pushes the first push frame (21) and is decoupled from the second push frame (22).

5. The agricultural sowing device according to claim 4, characterized in that: The push rod (23) is provided with a sliding frame (231), and a sliding frame (24) is symmetrically provided on the sliding frame (231). The sliding frame (24) is coupled to the second push frame (22), and an arc-shaped spring piece (233) is provided between the two sliding frames (24). Closing blocks (232) are symmetrically provided at both ends of the sliding frame (231). The closing blocks (232) move closer to each other as the push rod (23) moves, so as to drive the arc-shaped spring piece (233) to pull the sliding frame (24) to decouple the second push frame (22).

6. The agricultural sowing device according to claim 2, characterized in that: The cutting half frame (41) is provided with a water sprinkling port (413), and when the cutting half frame (41) is switched to the second working position, water flows out of the water sprinkling port (413).

7. An agricultural sowing device according to claim 6, characterized in that: The first push-and-resist frame (21) is fixedly connected to the water tank (13) on the frame (1), and a matching opening (213) is provided on the first push-and-resist frame (21), and the matching opening (213) corresponds to a water inlet groove (414) provided on the cut-off half frame (41).

8. The agricultural sowing device according to claim 1, characterized in that: The cut-off half frame (41) is provided with a plurality of fixing spikes (411) in a linear array, and the fixing spikes (411) are provided with sloped barbs (412).

9. The agricultural sowing device according to claim 1, characterized in that: The film cutting assembly also includes a rotation center (43), the cutting half frame (41) is rotationally connected to the rotation center (43), and a blocking block (431) is symmetrically arranged on the rotation center (43). The cutting half frame (41) is turned over to fit the blocking block (431) to maintain a horizontal state.

10. The agricultural sowing device according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing plate (32) and a central roller (33) for carrying a film (31); a pulling frame (321) is fixedly connected to the fixing plate (32) via a pulling member; and the central roller (33) is rotatably connected to the pulling frame (321).

Images