Hoe type film mulching hill planter

Abstract

The invention discloses a hoe-type film-mulching hill-drop planter, which comprises a tractor and a hole-digging seeding assembly, the tractor is provided with a power output shaft, the hole-digging seeding assembly comprises an assembly mounting frame, one side of the assembly mounting frame is provided with a transmission gear box connected with the power output shaft, and the transmission gear box is detachably connected with the tractor through a universal shaft; the film covering device is arranged at the front lower part of the assembly mounting frame; the plurality of hole-opening seeding mechanisms are transversely arranged in the middle of the overall frame body, and each hole-opening seeding mechanism comprises a transmission shaft connected with the output end of the transmission gear box and a seed guide interface; and the lower ends of the seed bin devices are provided with discharge ports communicated with the seed guide interfaces, and the seed bin devices are used for regularly and quantitatively putting seeds into the hole opening and seed sowing mechanism. According to the invention, integrated continuous operation of film mulching, film pressing, hole digging and precision seeding is realized.

Description

Technical Field

[0001] The present invention relates to the field of farming equipment, in particular to a hoe-type mulching hole seeder. Background Art

[0002] Traditional film mulching and seeding operations usually adopt the method of covering the film first and then manually or mechanically breaking the film for spot sowing, which has problems such as process separation, low efficiency, and high labor intensity. Manual film breaking is not only slow, but also difficult to ensure the quality of the holes, which can easily cause large-scale tearing of the film, affecting the heat preservation and moisture retention effect; simple mechanical film breaking and seeding devices generally have technical difficulties such as irregular hole opening, poor sowing accuracy (such as missed sowing, re-seeding), mismatch between seed holes and film breaking positions, asynchronous mechanism movement resulting in stuck or damaged seeds, and inconvenient replacement of roll film affecting operation continuity. The existing technology lacks a hoe-type film mulching and hole sowing mechanical equipment that can efficiently, accurately, and integratedly complete film covering, film pressing, precise film breaking, regular hole opening and precision sowing, and is easy to maintain and operate. Summary of the Invention

[0003] The purpose of the present invention is to provide a hoe-type mulching hole seeder to solve the above problems.

[0004] According to one aspect of the present invention, a hoe-type mulching hole seeder is provided, comprising: a tractor and a hole-opening and sowing assembly, wherein the tractor is provided with a power output shaft, and the hole-opening and sowing assembly comprises:

[0005] An assembly mounting frame, one side of which is provided with a transmission gearbox connected to the power output shaft, wherein the transmission gearbox is detachably connected to the tractor via a universal joint;

[0006] A film covering device is provided at the front lower portion of the assembly mounting frame, the film covering device being used to store the rolled ground film and to release the ground film smoothly along with the pulling speed;

[0007] A plurality of hole-opening sowing mechanisms are arranged transversely in the middle of the overall frame, and are used to pierce the ground film, open the ground film, mark out soil holes and place seeds. The hole-opening sowing mechanism includes a transmission shaft connected to the output end of the transmission gearbox and a seed guide interface;

[0008] A plurality of seed bin devices, the number of which corresponds to the arrangement of the hole-opening sowing mechanism, the seed bin device being arranged above the hole-opening sowing mechanism, the lower end of the seed bin device being provided with a discharge port connected to the seed guide interface, the seed bin device being used to regularly and quantitatively put seeds into the hole-opening sowing mechanism;

[0009] The main film pressing wheels are arranged on both sides of the rear part of the assembly installation frame, and are used to press both sides of the ground film into the soil.

[0010] In some embodiments, the film covering device includes: a film bracket including a drum for placing a rolled film, and a connecting bracket provided on the drum;

[0011] The reel includes a film cylinder, openings provided at both ends of the film cylinder, and a film outlet provided at the lower end of the film cylinder;

[0012] a membrane cylinder cover, which is provided at both ends of the membrane cylinder and is flipped relative to the membrane cylinder to a closed position for closing the opening or to an open position for opening the opening;

[0013] A positioning mechanism is provided in the film cylinder cover and is used to support the rolled ground film;

[0014] When the film drum cover is flipped from the open position to the closed position, the positioning mechanism gradually approaches the rolled ground film to lift it up until it is suspended in the roll;

[0015] The positioning mechanism includes a positioning cone, a connecting shaft connected to the positioning cone, and a rotating handle connected to the connecting shaft. The positioning cone and the rotating handle are respectively located on the inner and outer sides of the membrane cylinder cover.

[0016] In some embodiments, the hole-digging and sowing mechanism comprises:

[0017] A fixing plate, fixedly mounted on the assembly mounting frame;

[0018] a transmission shaft, rotatably connected to the fixed plate and connected to the output end of the transmission gearbox;

[0019] A cam is rotatably disposed on one side of the fixed plate and is transmission-connected to the transmission shaft;

[0020] a first hinged arm, the upper end of which is rotatably connected to the lower side of the fixed plate;

[0021] a duck head, disposed at the lower end of the first hinged arm;

[0022] a second hinged arm, the upper end of which is rotatably connected to the cam and the lower end of which is hinged to the first hinged arm;

[0023] Wherein, the duck head comprises:

[0024] A duckbill mounting seat, the upper end of which is provided with the seed guide interface;

[0025] The duckbill comprises two opening and closing blocks, the upper parts of the opening and closing blocks are rotatably connected to the two sides of the lower part of the duckbill mounting seat, and mutually meshing teeth are provided between the upper parts of the opening and closing blocks on both sides. A first reset tension spring is connected between the duckbill mounting seat and the opening and closing blocks on one side, so that the opening and closing blocks on both sides are in a closed state when stationary; the opposite surfaces of the opening and closing blocks on both sides are respectively provided with arc-shaped grooves, forming a seed storage cavity when closed; the seed guide interface is connected to the seed storage cavity;

[0026] Acupuncture needles are arranged at the bottom of each opening and closing block, and the acupuncture needles on both sides are combined to form a spike portion when the duckbill is closed;

[0027] An opening and closing rod, fixedly connected to the opening and closing block on one side;

[0028] a control rod rotatably connected to the upper portion of the fixed plate and in contact with the active contour surface of the cam;

[0029] An opening and closing steel wire rope is connected between the control rod and the opening and closing rod;

[0030] When the cam rotates under the drive of the transmission shaft, the duck head is driven to move up and down through the linkage cooperation of the first articulated arm and the second articulated arm; at the same time, the duck bill is driven to open and close through the linkage cooperation of the control rod, the opening and closing wire rope and the opening and closing rod.

[0031] In some embodiments, the seed bin device comprises:

[0032] A bin for storing seeds;

[0033] A silo body, which is provided with a feed inlet and a discharge outlet communicated with the hopper;

[0034] A discharging mechanism is provided in the bin body and is used to quantitatively transport the seeds at the feed port to the discharge port; the discharging mechanism includes a discharging shaft connected to a seed discharging power source, a discharging cylinder provided on the discharging shaft, and a quantitative bin recessed on the discharging cylinder; the discharging cylinder is provided close to the discharge port to separate the feed port and the discharge port;

[0035] When the quantitative bin passes the feed port, the seeds in the bin bucket fall into the quantitative bin and rotate with the quantitative bin to the discharge port for discharge.

[0036] In some embodiments, the positioning mechanism also includes a bearing arranged between the connecting shaft and the membrane cylinder cover; the positioning mechanism also includes a sleeve arranged on the inner side of the membrane cylinder cover, the sleeve is provided with a mounting cavity for the bearing to be embedded, and the sleeve is connected to the membrane cylinder cover to limit the bearing to be located in the mounting cavity; a spring is provided between the positioning cone and the connecting shaft to allow the positioning cone to move relative to the connecting shaft along the axial direction of the connecting shaft; one end of the positioning cone is provided with a conical surface for inserting into the rolled ground film, and the other end is provided with an inner cavity for installing the spring, a sliding groove is provided on the connecting shaft, and a positioning pin passing through the sliding groove is provided on the positioning cone, and the positioning pin keeps the connecting shaft inserted in the inner cavity.

[0037] In some embodiments, a first transmission sprocket is connected to one side of the transmission shaft, and the first transmission sprocket is located on the right side of the fixed plate; a second transmission sprocket is rotatably provided on the right side of the fixed plate, and the first transmission sprocket and the second transmission sprocket are connected by chain transmission; the cam is rotatably provided on the left side of the fixed plate, and the cam and the second transmission sprocket are coaxially arranged; the first articulated arm includes a first articulated rod, a second articulated rod and a articulated plate, the upper end of the first articulated rod is rotatably connected to the lower part of the fixed plate, the lower end of the second articulated rod is fixed to the duck head, and the lower end of the first articulated rod is connected to the upper end of the second articulated rod through the articulated plate; a guide block is fixed to the lower part of the fixed plate, and a guide groove for the movement of the guide block is provided in the middle part of the second articulated arm; the lower end of the second articulated arm is hinged to the second articulated rod.

[0038] In some embodiments, it also includes an adjusting mechanism for adjusting the capacity of the quantitative bin; the adjusting mechanism includes an adjusting wheel provided on the discharging shaft, an adjusting block embedded in the quantitative bin, and an adjusting assembly provided between the adjusting wheel and the adjusting block, the adjusting wheel drives the adjusting block to move along the length direction of the quantitative bin to reduce or increase the occupied space of the quantitative bin; the adjusting assembly includes a first rotating sleeve provided on the discharging shaft and rotating synchronously with the adjusting wheel, and a second rotating sleeve threadedly engaged with the first rotating sleeve, the adjusting block is provided on the second rotating sleeve, when the adjusting wheel rotates around the discharging shaft, the first rotating sleeve rotates relative to the second rotating sleeve to drive the adjusting block to move along the axial direction of the discharging shaft, thereby adjusting the depth of insertion into the quantitative bin; a plurality of the quantitative bins are evenly spaced along the circumferential direction of the discharging barrel, a plurality of the adjusting blocks are evenly spaced along the circumferential direction of the second rotating sleeve, and the quantitative bins correspond to the adjusting blocks one by one; the adjusting block remains inserted into the quantitative bin so that the discharging barrel and the second rotating sleeve rotate synchronously.

[0039] In some embodiments, the seeding power source is a motor, and the motor is disposed on one side of the assembly mounting frame.

[0040] In some embodiments, a secondary film pressing wheel is provided between adjacent hole-opening and sowing mechanisms.

[0041] Compared with the prior art, the beneficial effects of this application are:

[0042] The hoe-type mulching seed drill provided by the present invention significantly improves operation efficiency and quality;

[0043] The present invention realizes the integrated continuous operations of film covering, film pressing, hole opening and precision seeding.

[0044] 1. Efficient and convenient film covering and positioning: The film covering device adopts a flip film cylinder cover design with a positioning cone. When closed, it automatically lifts the roll film to make it suspended in the air, greatly reducing the friction of the roll film rotation and ensuring smooth film laying;

[0045] 2. Precision integration of film breaking, hole opening, and sowing: The innovative duckbill-style hole-opening and sowing mechanism, driven by a cam, rises and falls via an articulated arm system, and precisely controls the opening and closing of the duckbill through a control lever and a steel cable. As the duckbill descends, the closed, spike-like hole-opening needles precisely pierce the mulch. Once in position, the duckbill opens, and the hole-opening needles simultaneously spread outward to form a regular seed hole. The seeds then drop precisely into the hole from the seed storage chamber. Film breaking, hole opening, and sowing are seamlessly completed in a single action, offering high efficiency and precise positioning, effectively preventing missed seeds, double seeds, and mulch tearing.

[0046] 3. Adjustable precision seeding: The seed bin device adopts a discharge barrel structure with a quantitative bin, and cooperates with an adjustment mechanism that can adjust the block depth to achieve quantitative and timely seed delivery, and can flexibly adapt to the agronomic requirements of different seeding amounts;

[0047] 4. Stable film pressing: The main film pressing wheel and the secondary film pressing wheel cooperate to ensure that both sides of the film are pressed into the soil, and the film between rows fits tightly with the soil;

[0048] 5. Compact and reliable structure: The transmission gearbox is centrally driven, and various mechanisms achieve precise synchronization and coordination of complex movements through cams, hinges, and pull ropes. The overall structure is modular and removable, making it easy to maintain. This machine significantly improves the mechanization, precision, and efficiency of mulching and hole-seeding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0050] Figure 2 Schematic diagram of the bottom structure of the present invention;

[0051] Figure 3 It is a schematic diagram of the rear structure of the present invention;

[0052] Figure 4 It is a structural schematic diagram of the present invention;

[0053] Figure 5 This is a structural diagram of the membrane cylinder cover in the open position;

[0054] Figure 6 It is a half-section view of the positioning mechanism;

[0055] Figure 7 It is a schematic diagram of the three-dimensional structure of the hole-opening and sowing mechanism of the present invention;

[0056] Figure 8 It is a left structural schematic diagram of the hole-opening and sowing mechanism of the present invention;

[0057] Figure 9 It is a schematic structural diagram of the right side of the hole-opening and sowing mechanism of the present invention;

[0058] Figure 10 It is a schematic diagram of the three-dimensional structure of the duck head of the present invention;

[0059] Figure 11 Schematic diagram of the three-dimensional structure of the duckbill of the present invention;

[0060] Figure 12 Schematic diagram of the connection structure between the opening and closing rod and the opening and closing block of the present invention;

[0061] Figure 13 It is a structural schematic diagram of the seed bin device of the present invention;

[0062] Figure 14 yes Figure 13 Internal structure Figure 1 ;

[0063] Figure 15 yes Figure 13 AA cross-sectional view;

[0064] Figure 16 yes Figure 13 Internal structure Figure 2 ;

[0065] Figure 17 yes Figure 13 Internal structure Figure 3 . DETAILED DESCRIPTION

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0067] refer to Figures 1 to 17 The present application provides a hoe-type mulching hole seeder, comprising: a tractor and a hole-opening and sowing assembly, wherein the tractor is provided with a power output shaft, and the hole-opening and sowing assembly comprises:

[0068] The assembly mounting frame 3 has a transmission gearbox 31 connected to the power output shaft on one side, and the transmission gearbox 31 is detachably connected to the tractor via a universal joint;

[0069] The film covering device 9 is provided at the front lower portion of the assembly mounting frame 3. The film covering device 9 is used to store the rolled ground film and release the ground film smoothly with the pulling speed.

[0070] Multiple hole-opening sowing mechanisms are arranged horizontally in the middle of the overall frame, and are used to pierce the ground film, open the ground film, mark out soil holes and place seeds. The hole-opening sowing mechanism includes a transmission shaft 11 connected to the output end of the transmission gear box 31 and a seed guide interface 22;

[0071] A plurality of seed bin devices 8, the number of which corresponds to the arrangement of the hole-opening sowing mechanism, the seed bin device 8 is arranged above the hole-opening sowing mechanism, the lower end of the seed bin device 8 is provided with a discharge port 822 connected to the seed guide interface 22, and the seed bin device 8 is used to regularly and quantitatively put seeds into the hole-opening sowing mechanism;

[0072] The seed guide interface 22 is connected to the discharge port 822 through a spring sleeve.

[0073] The main film pressing wheels 32 are arranged on both sides of the rear part of the assembly mounting frame 3 , and are used to press both sides of the ground film into the soil.

[0074] The coating device 9 includes:

[0075] The mulch film bracket 91 includes a drum 92 for placing the rolled mulch film, and a connecting bracket 93 provided on the drum 92; the connecting bracket is used to connect with a seeder or a rice transplanter.

[0076] The reel 92 includes a film cylinder 921, openings 922 provided at both ends of the film cylinder 921, and a film outlet 923 provided at the lower end of the film cylinder 921;

[0077] The membrane cylinder cover 94 is provided at both ends of the membrane cylinder 921 and is flipped relative to the membrane cylinder 921 to a closed position to close the opening 922 or to an open position to open the opening 922;

[0078] a positioning mechanism 95 , which is provided in the film cylinder cover 94 and is used to support the rolled ground film;

[0079] When the film drum cover 94 is flipped from the open position to the closed position, the positioning mechanism 95 gradually approaches the rolled ground film to lift it up until it is suspended in the roll 92 .

[0080] When in use, first open the film cylinder cover, put the roll film into the roll, and then close the film cylinder cover. When the film cylinder cover flips from the open position to the closed position, the positioning mechanism gradually approaches the roll film and lifts the roll film, supporting the roll film suspended in the roll, avoiding contact between the roll film and the film cylinder, which causes the roll film to affect rotation when unwinding or rewinding.

[0081] Furthermore, as a preferred embodiment of this solution, but not a limitation, the positioning mechanism 95 includes a positioning cone 951, a connecting shaft 952 connected to the positioning cone 951, and a rotating handle 953 connected to the connecting shaft 952. The positioning cone 951 and the rotating handle 953 are located on the inner and outer sides of the film cylinder cover 94, respectively. After the roll of mulch film is installed, it needs to be manually unwound. The rotating handle drives the positioning cone to rotate, and under the weight of the roll, the roll rotates with the positioning cone. After the unwound film is pressed and fixed, the film covering mechanism moves with the planter, and the roll of mulch film is subsequently unwound.

[0082] Furthermore, as a preferred embodiment of this solution but not limiting, the positioning mechanism 95 further includes a bearing 954 provided between the connecting shaft 952 and the membrane cylinder cover 94, thereby improving the load-bearing capacity and making the rotation smoother.

[0083] Furthermore, as a preferred embodiment of this solution but not limiting, the positioning mechanism 95 further includes a sleeve 956 disposed inside the film cartridge cover 94. The sleeve 956 is provided with a mounting cavity 957 for the bearing 954 to be inserted into. The sleeve 956 is connected to the film cartridge cover 94 to confine the bearing 954 within the mounting cavity 957. This method provides for secure and reliable installation.

[0084] Furthermore, as a preferred embodiment of this solution but not a limitation, a spring 955 is provided between the positioning cone 951 and the connecting shaft 952 to allow the positioning cone 951 to move relative to the connecting shaft 952 along the axis of the connecting shaft 952. The positioning cone can maintain a top pressure on the rolled ground film under the action of the spring.

[0085] Furthermore, as a preferred embodiment of the present invention but not a limitation, one end of the positioning cone 951 is provided with a conical surface 9511 for inserting into the rolled ground film, and the other end is provided with an inner cavity 9512 for installing the spring 955. The connecting shaft 952 is provided with a sliding groove 9521, and the positioning cone 951 is provided with a positioning pin 9522 passing through the sliding groove 9521. The positioning pin 9522 keeps the connecting shaft 952 inserted into the inner cavity 9512.

[0086] Furthermore, as a preferred embodiment of the present invention but not limiting, the present invention further comprises a locking mechanism 96 for locking the film cylinder cover 94 in the closed position. After the locking mechanism locks the film cylinder cover, the positioning cone can continue to support the roll-type ground film.

[0087] Furthermore, as a preferred embodiment of the present invention but not a limitation, the locking mechanism 96 includes a locking pin 961 provided on the membrane cylinder cover 94, a locking buckle 962 hinged to the membrane cylinder 921, and a locking knob 963 threadedly connected to the membrane cylinder 921. When the membrane cylinder cover 94 is in the closed position, the locking buckle 962 rotates to engage with the locking pin 961, and the locking knob 963 presses the locking buckle 962 to limit its rotation.

[0088] Furthermore, as a preferred embodiment of this solution but not limiting, the locking mechanism 96 further includes a support member 964 provided on the film cylinder 921. The support member 964 is provided with a guide slope 965. When the film cylinder cover 94 is flipped from the open position to the closed position, the locking pin 961 moves along the guide slope 965 to the support member 964 and is trapped between the locking buckle 962 and the support member 964. This can prevent the locking pin from being unhooked and can strengthen the support for the film cylinder cover.

[0089] Furthermore, as a preferred embodiment of this solution but not a limitation, the membrane cylinder cover 94 is hinged to the connecting bracket 93 .

[0090] The hole-opening and sowing mechanism includes: a fixed plate 1, which is fixedly mounted on the hoe-type mulching and hole-seeding machine; a transmission shaft 11, which is rotatably connected to the fixed plate 1 and is transmission-connected to the output shaft of the hoe-type mulching and hole-seeding machine; a cam 12, which is rotatably arranged on one side of the fixed plate 1 and is transmission-connected to the transmission shaft 11; a first articulated arm 13, whose upper end is rotatably connected to the lower side of the fixed plate 1; a duck head 2, which is arranged at the lower end of the first articulated arm 13; a second articulated arm 14, whose upper end is rotatably connected to the cam 12, and whose lower end is hinged to the first articulated arm 13; wherein the duck head 2 includes: a duckbill mounting seat 21, an upper end of which is provided with a seed guide interface 22; a duckbill 23, including two opening and closing blocks 231, the upper part of the opening and closing block 231 is rotatably connected to the two sides of the lower part of the duckbill mounting seat 21, and a tooth portion 232 that meshes with each other is provided between the upper parts of the opening and closing blocks 231 on both sides, and a first reset pull is connected between the duckbill mounting seat 21 and the opening and closing block 231 on one side. The spring makes the opening and closing blocks 231 on both sides in a closed state when stationary; the opposite surfaces of the opening and closing blocks 231 on both sides are respectively provided with arc-shaped grooves 234, which form a seed storage cavity 235 when closed; the seed guide interface 22 is connected to the seed storage cavity 235; the opening needle 24 is provided at the lower part of each opening and closing block 231, and the opening needles 24 on both sides are combined to form a spike portion 241 when the duckbill 23 is closed; the opening and closing rod 25 is fixed to the opening and closing block 231 on one side; the control rod 15 is rotatably connected to the upper part of the fixed plate 1 and contacts the active contour surface of the cam 12; the opening and closing steel wire rope (not shown in the figure) is connected between the control rod 15 and the opening and closing rod 25; when the cam 12 rotates under the drive of the transmission shaft 11, the duck head 2 is driven to perform a lifting movement through the linkage cooperation of the first articulated arm 13 and the second articulated arm 14; at the same time, the duckbill 23 is driven to open and close through the linkage cooperation of the control rod 15, the opening and closing steel wire rope and the opening and closing rod 25.

[0091] In this embodiment, the hoe-type mulching hole seeder has an output shaft, and the transmission shaft 11 rotates through a gearbox; the hoe-type mulching hole seeder has a seed bin, which intermittently releases a certain amount of seeds to the seed guide interface 22 according to the travel spacing (i.e., plant spacing) of the tractor.

[0092] The shape of the hole-opening needle 24 can be changed according to actual needs. In this embodiment, the hole-opening needle 24 is in the shape of a thin needle, which is suitable for opening holes in paddy fields to reduce mud adhesion. For dry fields, the hole-opening needle 24 is in the shape of a wider needle.

[0093] A first reset spring is connected between the duckbill mounting seat 21 and the opening and closing block 231 on one side. Specifically, a first reset spring is connected between the rear left side of the duckbill mounting seat 21 and the opening and closing block 231 on the right side, so that the opening and closing blocks 231 on both sides are in a closed state under the structure of the tooth portion 232 when stationary.

[0094] In some embodiments, a first transmission sprocket 16 is connected to one side of the transmission shaft 11, and the first transmission sprocket 16 is located on the right side of the fixed plate 1; a second transmission sprocket 17 is rotatably provided on the right side of the fixed plate 1, and the first transmission sprocket 16 and the second transmission sprocket 17 are connected by a chain (not shown); the cam 12 is rotatably provided on the left side of the fixed plate 1, and the cam 12 and the second transmission sprocket 17 are coaxially arranged.

[0095] In some embodiments, the first articulated arm 13 includes a first articulated rod 131, a second articulated rod 132 and a articulated plate 133, the upper end of the first articulated rod 131 is rotatably connected to the lower part of the fixed plate 1, the lower end of the second articulated rod 132 is fixed to the duck head 2, and the lower end of the first articulated rod 131 and the upper end of the second articulated rod 132 are connected through the articulated plate 133.

[0096] In some embodiments, a guide block 18 is fixed to the lower portion of the fixed plate 1 , and a guide groove 141 for the guide block 18 to move is provided in the middle portion of the second hinged arm 14 ; the lower end of the second hinged arm 14 is hinged to the second hinged rod 132 .

[0097] The transmission shaft 11 drives the cam 12 to rotate synchronously through the first transmission sprocket 16, the chain and the second transmission sprocket 17. The lifting section of the outer contour of the cam 12 pushes the second articulated arm 14 to swing around the fixed plate 1. Through the sliding cooperation between the guide groove 141 and the guide block 18, the lower end of the second articulated arm 14 pulls the second articulated rod 132 to move downward; at the same time, the first articulated rod 131 rotates with the hinge point of the fixed plate 1 as the axis, driving the duck head 2 to descend vertically.

[0098] In some embodiments, a second reset spring 19 is connected between the fixing plate 1 and the duckbill mounting seat 21. The addition of the second reset spring 19 makes the raising and lowering of the duck head 2 more stable and with less impact, effectively extending the mechanical life and reducing noise during high-speed operation.

[0099] In some embodiments, when the duckbill 23 is opened, the seeds in the seed storage cavity 235 fall under the action of gravity; at the same time, the hole-opening needles 24 on both sides open.

[0100] In some embodiments, the rotation of the cam 12 simultaneously drives the duck head 2 to descend to pierce the film, the acupuncture needle 24 to open the film, the duck bill 23 to open for sowing, the duck head 2 to rise and reset, and the duck bill 23 to close.

[0101] Sowing action phase:

[0102] When the duck head 2 drops to the lowest position (corresponding to the maximum lift point of the cam 12), the spike portion 241 of the hole-opening needle 24 pierces the ground film. At this time, the high point of the cam 12 presses the control rod 15 to rotate around the fulcrum on the fixed plate 1, and the opening and closing rod 25 is pulled by the opening and closing wire rope, forcing the opening and closing block 231 on one side to rotate around the rotating shaft of the duckbill mounting seat 21; because the meshing teeth 232 on the upper part of the opening and closing block 231 are engaged with each other, the opening and closing block 231 on the other side rotates synchronously in the opposite direction, realizing the symmetrical opening of the duckbill 23. The seeds in the seed storage cavity 235 fall into the soil under the film under the action of gravity, and at the same time, the hole-opening needles 24 on both sides expand obliquely outward, expanding the puncture hole into a regular circular hole (to prevent the film from tearing).

[0103] Reset phase:

[0104] After the cam 12 turns into the return section, the second reset spring 19 releases its elastic force, pulling the duckbill mounting seat 21 upward, and the duck head 2 rises as a whole; at the same time, the control rod 15 disengages from the contour of the cam 12, the opening and closing wire rope relaxes, and the duckbill 23 closes under the action of the first reset spring, preparing for the next seed supply from the seed guide interface 22.

[0105] The present invention realizes the precise coordination and efficient integration of the three core actions of the duck head 2 lifting and lowering, the acupuncture needle 24 pricking and opening, and the duck bill 23 opening and closing for seeding under a single seeding power source through the linkage design driven by the cam 12;

[0106] Its beneficial effects are significant:

[0107] Integrated movement and high efficiency: As the duck head 2 descends, the combined hole-opening needles 24 precisely pierce the ground film. Then, the duck bill 23 opens, and the hole-opening needles 24 simultaneously move to both sides to expand the puncture points into regular holes. At the same time, the seeds fall accurately into the holes. The entire process of film rupture, hole opening, and sowing is completed in a single stroke, greatly improving work efficiency.

[0108] High quality of film rupture and opening: the combined opening needle 24 forms a sharp part that is conducive to piercing the film, and the opening action forms regular holes, effectively reducing the tearing of the film and protecting the integrity of the film;

[0109] Precise and reliable sowing: The duckbill 23 opens to sow seeds only after it has fallen into place and the hole-opening needles 24 are open, ensuring that the seeds fall accurately into the holes formed by the broken membrane, avoiding missed sowing or deviation;

[0110] Compact and coordinated structure: The cam 12, the core driving element, achieves precise transmission and synchronous control of complex movements through an articulated arm system, a control rod 15, and an opening and closing steel cable. The rational and reliable structure delivers smooth and stable movements, significantly improving the overall mechanization level and operation quality of mulching hole seeding.

[0111] Seed bin device, including

[0112] A hopper 81 for storing seeds;

[0113] The silo 82 is provided with a feed port 821 and a discharge port 822 communicating with the hopper 81;

[0114] The discharging mechanism 83 is provided in the bin body 82 and is used to quantitatively transport the seeds at the feed port 821 to the discharge port 822. The discharging mechanism 83 includes a discharging shaft 831 connected to a seed discharging power source, a discharging cylinder 832 provided on the discharging shaft 831, and a quantitative bin 833 recessed in the discharging cylinder 832. The discharging cylinder 832 is provided close to the discharge port 822 to separate the feed port 821 and the discharge port 822.

[0115] When the quantitative bin 833 passes through the feed port 821 , the seeds in the bin 81 fall into the quantitative bin 833 and rotate with the quantitative bin 833 to the discharge port 822 for discharge.

[0116] When in use, first put the seeds into the hopper, and the seeds fall into the quantitative bin after passing through the feed port. When the discharge shaft rotates, it drives the discharge barrel to rotate, so that the quantitative bin rotates to the discharge port and is discharged. Since the seeds in the quantitative bin are blocked by the feed port and cannot enter the discharge port, only the seeds in the quantitative bin can pass through, thereby achieving the effect of quantitative sowing.

[0117] Furthermore, as a preferred embodiment of this solution but not a limitation, it also includes a seed bin rack 86 provided on the bin body and used to connect to the seeder.

[0118] Furthermore, as a preferred embodiment of this solution but not limiting, it further includes an adjustment mechanism 84 for adjusting the capacity of the quantitative bin 833. The sowing amount can be adjusted according to the sowing demand.

[0119] Furthermore, as a preferred embodiment of this solution but not limiting, the adjustment mechanism 84 includes an adjustment wheel 841 provided on the discharge shaft 831, an adjustment block 842 embedded in the quantitative bin 833, and an adjustment assembly provided between the adjustment wheel 841 and the adjustment block 842. The adjustment wheel 841 drives the adjustment block 842 to move along the length direction of the quantitative bin 833 to reduce or increase the space occupied by the quantitative bin 833. Since the sowing amount is the storage capacity of the quantitative bin for seeds, adjusting the space size of the quantitative bin is to adjust the storage capacity.

[0120] Furthermore, as a preferred embodiment of this solution but not a limitation, the adjustment assembly includes a first rotating sleeve 843 that is sleeved on the discharge shaft 831 and rotates synchronously with the adjusting wheel 841, and a second rotating sleeve 844 that is threadedly engaged with the first rotating sleeve 843. The adjustment block 842 is disposed on the second rotating sleeve 844. When the adjusting wheel 841 rotates about the discharge shaft 831, the first rotating sleeve 843 rotates relative to the second rotating sleeve 844, thereby driving the adjustment block 842 to move along the axis of the discharge shaft 831, thereby adjusting the depth of insertion into the quantitative bin 833. The adjusting wheel drives the first rotating sleeve to rotate. At this time, since the seed discharging power source is not started, the discharge shaft and the discharge barrel are stationary. The second rotating sleeve, in cooperation with the thread, drives the adjustment block to move along the axis of the discharge barrel.

[0121] Furthermore, as a preferred embodiment of this solution but not limiting, the plurality of metering bins 833 are evenly spaced along the circumference of the discharge cylinder 832, and the plurality of adjustment blocks 842 are evenly spaced along the circumference of the second rotating sleeve 844, with the metering bins 833 corresponding one to the adjustment blocks 842. When the seeding power source is activated, it drives the discharge shaft to rotate, thereby achieving evenly spaced seeding.

[0122] Furthermore, as a preferred embodiment of this solution but not a limitation, the adjustment block 842 remains inserted into the quantitative bin 833 so that the discharge cylinder 832 and the second rotating sleeve 844 maintain synchronous rotation.

[0123] Furthermore, as a preferred embodiment of this solution but not a limitation, the adjustment mechanism 84 further includes a switching assembly, which is used to cause the discharge barrel 832 to rotate synchronously with the first rotating sleeve 843, so that the three rotate synchronously with the second rotating sleeve 844 to maintain the occupied space of the adjustment block 842; or to cause the first rotating sleeve 843 and the second rotating sleeve 844 to rotate relative to each other to adjust the occupied space of the adjustment block 842. The switching assembly ensures that after the seeding power source is activated, the first rotating sleeve and the second rotating sleeve do not rotate relative to each other, that is, the adjustment block does not move, and the storage capacity of the metering bin is fixed.

[0124] Furthermore, as a preferred embodiment of the present invention but not a limitation, the switching assembly includes a pre-tightening spring 845 whose two ends respectively press against the discharge cylinder 832 and the first rotating sleeve 843. When the discharge shaft 831 drives the discharge cylinder 832 to rotate, the first rotating sleeve 843 is pressed by the pre-tightening spring 845 so that the first rotating sleeve 843 and the discharge cylinder 832 rotate synchronously; when the adjusting wheel 841 drives the first rotating sleeve 843 to rotate, the first rotating sleeve 843 overcomes the pressing force of the pre-tightening spring 845 to rotate relative to the second rotating sleeve 844.

[0125] Furthermore, as a preferred embodiment of this solution but not a limitation, it also includes an anti-crushing mechanism 85 for limiting the seeds outside the quantitative bin 833 at the feed port 821. This is to prevent the seeds from being crushed in the gap between the feed port and the discharge barrel when they are rotated out, resulting in damage to the seeds.

[0126] Furthermore, as a preferred embodiment of this solution but not a limitation, the anti-crushing mechanism 85 includes a brush head 851 provided in the bin body 82, and a brush 852 provided on the brush head 851. The brush 852 abuts against the outer wall of the discharge barrel 832. When the quantitative bin 833 passes through the brush 852 and leaves the feed port 821, the brush 852 intercepts the seeds outside the quantitative bin 833 at the feed port 821. This can prevent the gap between the feed port and the discharge barrel from being rigid, causing the seeds to be crushed and damaged.

[0127] Furthermore, as a preferred embodiment of the present invention but not a limitation, a limiting ring 87 is provided in the discharge barrel for limiting the first rotating sleeve from separating from the discharge barrel.

[0128] In some embodiments, the seeding power source is a motor, and the motor is disposed on one side of the assembly mounting frame 3 .

[0129] In some embodiments, a secondary film pressing wheel 33 is provided between adjacent hole-opening and sowing mechanisms.

[0130] In some embodiments, a front film pressing wheel group 4 is provided on one side of the lower portion of the assembly mounting frame 3. The front film pressing wheel group 4 includes two rows of six floats in total. The floats float up and down with the ground level and trigger the change in the tightness of the steel wire, thereby sensing the ground level. The hydraulic system of the tractor automatically floats the height of the hole seeder, so that the ground film is pressed against the ground and the air in the ground film is discharged. The ground level is sensed by the sensing wire, and the hole seeder as a whole is controlled to automatically float up and down with the ground level, so that the hole depth remains consistent.

[0131] The overall operation process of the hoe-type mulching hole seeder:

[0132] Preparation and lamination stage:

[0133] Open the film cylinder covers 94 at both ends of the film reel 92 and place the rolled ground film into the film cylinder 921. When closing the film cylinder cover 94, the positioning cone 951 of the positioning mechanism 95, under the action of the spring 955, inserts into the center hole of the rolled ground film and lifts it into the air, reducing friction. Turning the handle 953 allows manual unwinding. The locking mechanism 96 engages the locking buckle 962 with the locking pin 961. Tightening the locking knob 963 secures the film cylinder cover.

[0134] The tractor is pulled forward, and the ground film is released from the film outlet 923 and spread on the ridge bed. The main film pressing wheel 32 presses the edges of the ground film on both sides, and the secondary film pressing wheel 33 presses the ground film in the field.

[0135] Power transmission and seeding synergy:

[0136] The tractor power output shaft drives the transmission gear box 31, which drives the transmission shaft 11 of each hole-opening sowing mechanism to rotate. The seeding power source of the seed bin device, such as a motor, follows synchronously, driving the discharge shaft 831 to drive the discharge cylinder 832 to rotate.

[0137] Precision seed supply: Seeds from hopper 81 fall through feed port 821 into metering chamber 833, where brush 852 of anti-crush mechanism 85 removes any remaining seeds trapped between them. When metering chamber 833 rotates to discharge port 822, seeds fall through seed guide interface 22 into seed storage chamber 235 of duckbill 23. The seeding rate is adjusted using regulating wheel 841: its rotation overcomes the resistance of preload spring 845, driving relative movement between first and second rotating sleeves 843 and 844. This changes the depth of insertion of regulating block 842 into metering chamber 833 to adjust the seeding volume.

[0138] Integrated operation of hole opening and sowing:

[0139] Piercing the membrane: The transmission shaft 11 drives the cam 12 to rotate, which slides along the guide block 18 through the guide groove 141 of the second hinged arm 14 and links with the first hinged arm 13 to push the duck head 2 down. The closed duckbill 23 is composed of a sharp spike 241 formed by the hole-piercing needle 24 to pierce the ground membrane.

[0140] Precise seeding: When the duck head 2 drops to the lowest point, the cam 12 pushes the control rod 15, which pulls the opening and closing rod 25 through the opening and closing wire rope, causing the duck bill 23 to open by overcoming the first reset spring force:

[0141] The acupuncture needles 24 on both sides expand obliquely outward to form regular seed holes;

[0142] The seeds in the seed storage cavity 235 fall into the holes accurately.

[0143] Reset and prepare for seeding: After the cam 12 turns into the return section, the second reset spring 19 pulls the duck head 2 up, the control rod 15 disengages from the cam 12, and the duckbill 23 closes and resets; the seed bin and quantitative bin 833 synchronously replenish seeds to the seed storage chamber 235.

[0144] Circular operation: The tractor continues to move forward, the film covering device releases the film at a uniform speed, and the hole-opening and sowing mechanism executes the "descending - film-piercing - hole-opening - sowing - rising" action in a cycle according to the set plant spacing. The primary and secondary film pressing wheels compact the film edges and between rows throughout the entire process, realizing the integrated continuous operation of film covering, precision sowing and compaction.

[0145] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hoe-type mulching hole seeder, characterized in that: include: A tractor and a hole-digging and sowing assembly, wherein the tractor is provided with a power output shaft, and the hole-digging and sowing assembly comprises: An assembly mounting frame, one side of which is provided with a transmission gearbox connected to the power output shaft, wherein the transmission gearbox is detachably connected to the tractor via a universal joint; A film covering device is provided at the front lower portion of the assembly mounting frame, the film covering device is used to store the rolled ground film and release the ground film smoothly with the pulling speed; A plurality of hole-opening sowing mechanisms are arranged transversely in the middle of the overall frame, and are used to pierce the ground film, open the ground film, mark out soil holes and place seeds. The hole-opening sowing mechanism includes a transmission shaft connected to the output end of the transmission gearbox and a seed guide interface; A plurality of seed bin devices, the number of which corresponds to the arrangement of the hole-opening sowing mechanism, the seed bin device being arranged above the hole-opening sowing mechanism, the lower end of the seed bin device being provided with a discharge port connected to the seed guide interface, the seed bin device being used to regularly and quantitatively put seeds into the hole-opening sowing mechanism; The main film pressing wheels are arranged on both sides of the rear part of the assembly installation frame, and are used to press both sides of the ground film into the soil.

2. The hoe-type mulching seed drill according to claim 1, characterized in that: The film covering device comprises: a film bracket, which comprises a drum for placing the rolled film, and a connecting bracket provided on the drum; The reel includes a film cylinder, openings provided at both ends of the film cylinder, and a film outlet provided at the lower end of the film cylinder; a membrane cylinder cover, which is provided at both ends of the membrane cylinder and is flipped relative to the membrane cylinder to a closed position for closing the opening or to an open position for opening the opening; A positioning mechanism is provided in the film cylinder cover and is used to support the rolled ground film; When the film drum cover is flipped from the open position to the closed position, the positioning mechanism gradually approaches the rolled ground film to lift it up until it is suspended in the roll; The positioning mechanism includes a positioning cone, a connecting shaft connected to the positioning cone, and a rotating handle connected to the connecting shaft. The positioning cone and the rotating handle are respectively located on the inner and outer sides of the membrane cylinder cover.

3. The hoe-type mulching seed drill according to claim 1, characterized in that: The hole-digging and sowing mechanism comprises: A fixing plate, fixedly mounted on the assembly mounting frame; A transmission shaft, rotatably connected to the fixed plate and connected to the output end of the transmission gearbox; A cam is rotatably disposed on one side of the fixed plate and is transmission-connected to the transmission shaft; a first hinged arm, the upper end of which is rotatably connected to the lower side of the fixed plate; a duck head, disposed at the lower end of the first hinged arm; a second hinged arm, the upper end of which is rotatably connected to the cam and the lower end of which is hinged to the first hinged arm; Wherein, the duck head comprises: A duckbill mounting seat, the upper end of which is provided with the seed guide interface; The duckbill comprises two opening and closing blocks, the upper parts of the opening and closing blocks are rotatably connected to the two sides of the lower part of the duckbill mounting seat, and mutually meshing teeth are provided between the upper parts of the opening and closing blocks on both sides. A first reset tension spring is connected between the duckbill mounting seat and the opening and closing blocks on one side, so that the opening and closing blocks on both sides are in a closed state when stationary; the opposite surfaces of the opening and closing blocks on both sides are respectively provided with arc-shaped grooves, forming a seed storage cavity when closed; the seed guide interface is connected to the seed storage cavity; Acupuncture needles are arranged at the bottom of each opening and closing block, and the acupuncture needles on both sides are combined to form a spike portion when the duckbill is closed; An opening and closing rod, fixedly connected to the opening and closing block on one side; a control rod rotatably connected to the upper portion of the fixed plate and in contact with the active contour surface of the cam; An opening and closing steel wire rope is connected between the control rod and the opening and closing rod; When the cam rotates under the drive of the transmission shaft, the duck head is driven to move up and down through the linkage cooperation of the first articulated arm and the second articulated arm; at the same time, the duck bill is driven to open and close through the linkage cooperation of the control rod, the opening and closing wire rope and the opening and closing rod.

4. The hoe-type mulching seed drill according to claim 1, characterized in that: The seed bin device comprises: A bin for storing seeds; A silo body, which is provided with a feed inlet and a discharge outlet communicated with the hopper; A discharging mechanism is provided in the bin body and is used to quantitatively transport the seeds at the feed port to the discharge port; the discharging mechanism includes a discharging shaft connected to a seed discharging power source, a discharging cylinder provided on the discharging shaft, and a quantitative bin recessed on the discharging cylinder; the discharging cylinder is provided close to the discharge port to separate the feed port and the discharge port; When the quantitative bin passes the feed port, the seeds in the bin bucket fall into the quantitative bin and rotate with the quantitative bin to the discharge port for discharge.

5. The hoe-type mulching hole seeder according to claim 2, characterized in that: The positioning mechanism also includes a bearing arranged between the connecting shaft and the membrane cylinder cover; the positioning mechanism also includes a sleeve arranged on the inner side of the membrane cylinder cover, the sleeve is provided with a mounting cavity for the bearing to be embedded, and the sleeve is connected to the membrane cylinder cover to limit the bearing to be located in the mounting cavity; a spring is provided between the positioning cone and the connecting shaft to allow the positioning cone to move relative to the connecting shaft along the axial direction of the connecting shaft; one end of the positioning cone is provided with a conical surface for inserting into the rolled ground film, and the other end is provided with an inner cavity for installing the spring, a sliding groove is provided on the connecting shaft, and a positioning pin passing through the sliding groove is provided on the positioning cone, and the positioning pin keeps the connecting shaft inserted in the inner cavity.

6. The hoe-type mulching hole seeder according to claim 3, characterized in that: One side of the transmission shaft is connected to a first transmission sprocket, and the first transmission sprocket is located on the right side of the fixed plate; a second transmission sprocket is rotatably provided on the right side of the fixed plate, and the first transmission sprocket and the second transmission sprocket are connected by chain transmission; the cam is rotatably provided on the left side of the fixed plate, and the cam and the second transmission sprocket are coaxially arranged; the first articulated arm includes a first articulated rod, a second articulated rod and a articulated plate, the upper end of the first articulated rod is rotatably connected to the lower part of the fixed plate, the lower end of the second articulated rod is fixed to the duck head, and the lower end of the first articulated rod is connected to the upper end of the second articulated rod through the articulated plate; a guide block is fixed to the lower part of the fixed plate, and a guide groove for the movement of the guide block is provided in the middle of the second articulated arm; the lower end of the second articulated arm is hinged on the second articulated rod.

7. The hoe-type mulching hole seeder according to claim 4, characterized in that: It also includes an adjusting mechanism for adjusting the capacity of the quantitative bin; the adjusting mechanism includes an adjusting wheel provided on the discharging shaft, an adjusting block embedded in the quantitative bin, and an adjusting assembly provided between the adjusting wheel and the adjusting block, the adjusting wheel driving the adjusting block to move along the length direction of the quantitative bin to reduce or increase the occupied space of the quantitative bin; the adjusting assembly includes a first rotating sleeve provided on the discharging shaft and rotating synchronously with the adjusting wheel, and a second rotating sleeve threadedly engaged with the first rotating sleeve, the adjusting block is provided on the second rotating sleeve, when the adjusting wheel rotates around the discharging shaft, the first rotating sleeve rotates relative to the second rotating sleeve to drive the adjusting block to move along the axial direction of the discharging shaft, thereby adjusting the depth of insertion into the quantitative bin; a plurality of the quantitative bins are evenly spaced along the circumferential direction of the discharging barrel, a plurality of the adjusting blocks are evenly spaced along the circumferential direction of the second rotating sleeve, and the quantitative bins correspond to the adjusting blocks one by one; the adjusting block remains inserted into the quantitative bin so that the discharging barrel and the second rotating sleeve rotate synchronously.

8. The hoe-type mulching seed drill according to claim 1, characterized in that: The seeding power source is a motor, and the motor is arranged on one side of the assembly mounting frame.

9. The hoe-type mulching seed drill according to claim 1, characterized in that: A secondary film pressing wheel is provided between adjacent hole-opening and sowing mechanisms.

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