Dibbler

Abstract

The invention discloses a dibbler, and solves the problems of high difficulty and long consumed time when the number of duckbilled components is adjusted in the conventional dibbler. The dibbler comprises a fixed disc assembly, a movable disc assembly, duckbilled assemblies and finger clamping assemblies, the fixed disc assembly comprises a seed taking disc and a cam disc, the movable disc assembly comprises a movable disc and a pressing disc which rotate relative to the seed taking disc, the number of the duckbilled assemblies is multiple, and the multiple duckbilled assemblies are installed between the movable disc and the pressing disc; the finger clamping assembly rotates around the axis of the movable disc assembly along with rotation of the movable disc assembly, the rotating finger clamping assembly clamps seeds under the action of the cam disc, the seed taking disc is provided with a seed discharging opening in a seed rotation path, the seeds are discharged into the duckbilled assembly through the seed discharging opening, the duckbilled assembly comprises a connecting plate part, and the connecting plate part is connected with the finger clamping assembly. Every two adjacent duckbilled assemblies are detachably connected through the corresponding connecting plate part, the connecting distance between any two adjacent duckbilled assemblies is adjustable, and the multiple duckbilled assemblies are connected end to end to form a ring.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a seed drill. Background Art

[0002] With the continuous development of agricultural technology and the widespread popularization of mechanized sowing, the use of hole seeders in agricultural production is becoming more and more frequent. The hole seeder includes a duckbill component for forming holes and sowing. During the sowing process, the hole seeder needs to be adjusted to have different numbers of duckbill components according to different plant spacing requirements.

[0003] In the prior art, the number of slots of the fixed plate and the movable plate of the hole-seeding device is usually fixed, and the duckbill assembly, the fixed plate and the movable plate need to be disassembled and replaced when adjusting the number of duckbill assemblies. However, the multiple duckbill assemblies in the prior art are usually fixed on the movable plate respectively. When disassembling and installing the duckbill assembly, the existence of the movable plate and other components reduces the operable space for disassembling and installing the duckbill assembly, making it difficult to disassemble and install the duckbill assembly and taking a long time. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and propose a hole drill to solve the problem that the existing hole drill has great difficulty and time-consuming in adjusting the number of duckbill components.

[0005] In order to achieve the above technical objectives, the present invention provides a seed drill, comprising: A fixed plate assembly, comprising a fixed seed plate and a cam plate; A moving disc assembly rotates relative to the seed taking disc, and the moving disc assembly comprises a moving disc and a pressure disc which are arranged in parallel and fixedly connected; A duckbill assembly, which is provided with a plurality of groups, wherein the duckbill assembly is installed between the moving plate and the pressure plate; and A finger clamp assembly rotates around the axis of the moving disc assembly as the moving disc assembly rotates. The rotating finger clamp assembly clamps seeds under the action of the cam disc. The seed taking disc is provided with a seed discharge port on the rotation path of the seeds. The seeds are discharged into the duckbill assembly through the seed discharge port. The duckbill assembly comprises a connecting plate portion, and two adjacent groups of duckbill assemblies are detachably connected via the connecting plate portion. The connection spacing between any two adjacent groups of duckbill assemblies is adjustable, and multiple groups of duckbill assemblies are connected end to end to form a ring.

[0006] The hole-seeding device of the present invention connects multiple groups of duckbill assemblies end to end through the connecting plate parts on the duckbill assemblies to form an annular whole, so that the disassembly and assembly of the multiple groups of duckbill assemblies can be operated independently. Compared with the prior art, when disassembling and assembling the multiple groups of duckbill assemblies, since there are no other components to occupy the operating space for disassembling and assembling the duckbill assemblies, the disassembly and assembly of the duckbill assemblies is simpler, the operating difficulty is greatly reduced, and the operating time is saved.

[0007] Preferably, a plurality of fixing holes are provided on the connecting plate portion at intervals along the circumferential direction of the moving plate, and two adjacent connecting plate portions are fixedly connected by fasteners cooperating with the fixing holes.

[0008] By adopting the above-mentioned technical solution, a plurality of fixing holes and fasteners matching the fixing holes are provided at intervals on the connecting plate part along the circumferential direction of the moving disk, so as to achieve the purpose of adjustable connection spacing between two groups of connected duckbill assemblies, thereby simplifying the design of the connecting plate part and reducing the cost required to achieve adjustable connection spacing between two groups of connected duckbill assemblies.

[0009] Preferably, an annular groove is provided on the movable plate and / or the pressure plate to limit the rotation of the multiple groups of duckbill assemblies formed in an annular shape. The movable plate and the pressure plate are connected by a plurality of screws, and the plurality of screws limit the rotation of the multiple groups of duckbill assemblies formed in an annular shape.

[0010] By adopting the above-mentioned technical scheme, by providing an annular groove on the movable plate and / or the pressure plate, the multiple groups of duckbill assemblies forming a ring can be positioned and installed between the movable plate and the pressure plate through the annular groove, thereby simplifying the installation steps of the multiple groups of duckbill assemblies forming a ring and reducing the difficulty of installing the multiple groups of duckbill assemblies forming a ring; and the movable plate and the pressure plate are connected by multiple screws, and the multiple screws can also play a role in limiting the multiple groups of duckbill assemblies forming a ring, so that the multiple groups of duckbill assemblies forming a ring no longer need to be fixedly installed on the movable plate or the pressure plate, further simplifying the installation steps of the multiple groups of duckbill assemblies forming a ring and reducing the installation difficulty and labor cost of the multiple groups of duckbill assemblies forming a ring.

[0011] Preferably, the duckbill group includes a seed guide tube and a hole former, the connecting plate portion connects the seed guide tube and the hole former, and the connecting plate portion is provided with a through hole connecting the seed guide tube and the hole former.

[0012] By adopting the above-mentioned technical scheme, the connecting plate portion not only connects the duckbill assemblies of adjacent groups, but also connects the seed guide tube and the hole former in the duckbill assemblies of this group and makes the two communicate with each other, further simplifying the structure of the duckbill assembly, reducing the components of the duckbill assembly, thereby reducing the cost.

[0013] Preferably, the connecting plate portion includes an arc-shaped first connecting plate, the seed guide tube and the hole former are connected to the first connecting plate, and the first connecting plate of the duckbill assembly of this group is detachably connected to the first connecting plate of the duckbill assembly of the adjacent group and the connection spacing is adjustable.

[0014] By adopting the above-mentioned technical solution, the first connecting plate of the connecting plate part not only serves to connect the duckbill assemblies of adjacent groups, but also connects the seed guide tube and the hole former in the duckbill assemblies of this group and makes the two communicate with each other, further simplifying the structure of the duckbill assembly, reducing the components of the duckbill assembly, thereby reducing the cost.

[0015] Preferably, the connecting plate portion includes an arc-shaped first connecting plate and a second connecting plate, the seed guide tube and the hole former are connected to the first connecting plate, and the two ends of the second connecting plate are respectively detachably connected to the first connecting plate of the duckbill assembly of this group and the first connecting plate of the duckbill assembly of the adjacent group, and the connection spacing is adjustable.

[0016] By adopting the above-mentioned technical solution, the connecting plate part is divided into a first connecting plate and a second connecting plate. On the one hand, it can avoid setting the connecting plate part too long to accommodate different numbers of duckbill assemblies, thereby simplifying the structure and size of the connecting plate part and reducing the cost of the duckbill assemblies; on the other hand, the second connecting plate increases the versatility of the connecting plate part, thereby increasing the adjustable range of the planter spacing.

[0017] Preferably, fixing parts are also connected to the connecting plate parts of two adjacent groups of duckbill assemblies.

[0018] By adopting the above-mentioned technical solution, on the one hand, the fixing member can increase the distance between two adjacent groups of duckbill assemblies by respectively connecting the connecting plate parts of the two adjacent groups of duckbill assemblies, thereby avoiding the first connecting plate from being set too long. On the other hand, the fixing member can also enhance the reliability of the connection between the two adjacent groups of duckbill assemblies, thereby reducing or avoiding the shaking of the duckbill assemblies during the use of the hole seeder.

[0019] Preferably, the moving disk assembly also includes a dial and a plurality of dividing slot plates, wherein the dividing slot plates are fixed to the dial, and the dividing slot plates and the dial form dividing slots connected to the seed guide tube, and the dial is provided with scale indications corresponding to different groups of duckbill assemblies, and the dividing slot plates are fixed to the dial according to the scale indications, and the seed guide tube and the dividing slot plates are arranged correspondingly.

[0020] By adopting the above-mentioned technical solution and the above-mentioned settings, the installation accuracy of multiple groups of duckbill components forming a ring on the seed drill can be ensured. At the same time, the scale on the dial can also prevent users from making mistakes when assembling the dial and multiple dividing slot plates, further improving the accuracy of the seed drill assembly process and reducing labor costs.

[0021] Preferably, the seed guide tube extends in a direction away from the hole former and a cross-sectional area of ​​the seed guide tube gradually increases in the extending direction; one end of the seed guide tube away from the hole former is connected to the dividing groove.

[0022] By adopting the above technical solution, the area of ​​one end of the seed guide tube close to the dividing groove is increased, which reduces the probability that the seeds discharged from the seed discharge port do not fall into the duckbill assembly, thereby reducing the hole rate when the hole seeder is sown.

[0023] Preferably, the finger clamp assembly includes a finger clamp plate and a plurality of finger clamps, the finger clamps are rotatably mounted on the finger clamp plate, the finger clamps include a clamping portion and a rotating rod, adjacent rotating rods are connected with tension springs, the cam plate drives the rotating rod to rotate, the clamping portion is detachably mounted on the rotating rod so that the plurality of clamping portions correspond to the number and position of the plurality of duckbill assemblies.

[0024] By adopting the above-mentioned technical solution and the above-mentioned setting, when the seed drill needs to adjust the plant spacing, it is only necessary to remove the seed clamping part from the rotating rod, without disassembling the entire finger clamp assembly and replacing the finger clamp therein, thereby further saving the accessories that need to be replaced when the seed drill adjusts the plant spacing, reducing the number of accessories that the user needs to prepare, saving the user's cost, and also reducing the time spent on adjusting the plant spacing of the seed drill.

[0025] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a hole seeding device in an embodiment of the present invention; Figure 2 An exploded view of a seed drill according to an embodiment of the present invention; Figure 3 It is a schematic diagram of a hole sower in an embodiment of the present invention without a cover; Figure 4 is a schematic diagram of a moving disk in an embodiment of the present invention; Figure 5 A schematic diagram of multiple groups of duckbill assemblies connected end to end to form a ring in an embodiment of the present invention; Figure 6 A schematic diagram of a duckbill assembly in an embodiment of the present invention; Figure 7 An exploded view of a duckbill assembly in an embodiment of the present invention; Figure 8 Another exploded view of the duckbill assembly according to an embodiment of the present invention; Fig. 9 is another schematic diagram of a duckbill assembly in an embodiment of the present invention; Fig.10 A schematic diagram of a scale plate and a separation slot plate in an embodiment of the present invention; Fig.11 It is a schematic diagram of the duckbill assembly and the partition plate of the separation groove in the embodiment of the present invention; Fig.12is a schematic diagram of a finger clamp assembly in an embodiment of the present invention; Fig.13 is a schematic diagram of a cam plate in an embodiment of the present invention; Fig.14 is a schematic diagram of a finger clamp in an embodiment of the present invention; Fig.15 It is a schematic diagram of the cooperation of five groups of duckbill assemblies and finger clamp assemblies in an embodiment of the present invention; Fig.16 It is a schematic diagram of the cooperation of six groups of duckbill assemblies and finger clamp assemblies in an embodiment of the present invention; Fig.17 It is a schematic diagram of the cooperation of seven groups of duckbill assemblies and finger clamp assemblies in an embodiment of the present invention; Fig.18 It is a schematic diagram of the cooperation of eight groups of duckbill assemblies and finger clamp assemblies in an embodiment of the present invention; Fig.19 It is a schematic diagram of the cooperation of nine groups of duckbill assemblies and finger clamp assemblies in an embodiment of the present invention.

[0027] Reference numerals: 100, fixed plate assembly, 110, cover body, 120, seed plate, 121, seed discharge port, 130, cam plate, 131, high step, 132, low step, 133, transition slope; 200, moving plate assembly, 210, moving plate, 211, annular groove, 212, screw rod, 220, pressure plate, 230, scale plate, 240, separation slot plate, 250, separation slot, 260, partition plate; 300, duckbill assembly, 310, seed guide tube, 311, bottom plate, 312, first side wall, 313, second side plate, 314, third side wall, 315, fourth side wall, 316, seed guide channel, 320, hole former, 330, connecting plate portion, 331, fixing hole, 332, first connecting plate, 333, second connecting plate, 334, fixing member, 335, through hole; 400, finger clamp assembly, 410, finger clamp plate, 420, finger clamp, 421, clamping part, 422, rotating rod, 4221, tension spring plate, 4222, swing block, 423, tension spring. DETAILED DESCRIPTION

[0028] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" and "several" mean two or more, unless otherwise clearly specified.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figures 1 to 5 , Figures 15 to 19 As shown, a hole drill proposed in an embodiment of the present invention is installed on a seeder, and the hole drill includes a fixed disk assembly 100, a moving disk assembly 200, a duckbill assembly 300 and a finger clamp assembly 400.

[0033] The fixed plate assembly 100 includes a cover 110, a seed plate 120 and a cam plate 130. The cover 110 is fixed on the seed plate 120. The seed plate 120 and the cam plate 130 are fixed relative to the seed drill. A cavity is formed in the seed plate 120 to store seeds to be sown.

[0034] The movable plate assembly 200 rotates relative to the fixed plate assembly 100 . The movable plate assembly 200 includes a movable plate 210 and a pressure plate 220 . The movable plate 210 and the pressure plate 220 are arranged in parallel and fixedly connected.

[0035] The finger clamp assembly 400 is received in the cavity of the seed taking disc 120. The finger clamp assembly 400 rotates around the axis of the disc assembly 200 with the rotation of the disc assembly 200. The rotating finger clamp assembly 400 clamps the seeds under the action of the cam disc 130. The seed taking disc 120 is provided with a seed discharge port 121 on the rotation route of the seeds, and the seeds are discharged into the duckbill assembly 300 through the seed discharge port 121. The specific structure of the finger clamp assembly 400 and the cam disc 130 and the working principle of clamping seeds are described in detail in the subsequent embodiments.

[0036] Among them, the seed drill also includes a fixed sleeve seat and a rotating shaft rotatably connected to the sleeve seat. The moving disk assembly 200 and the finger clamp assembly 400 are rotatably connected to the sleeve seat through the rotating shaft. The seed disc 120 is fixed on the sleeve seat, and the cam disc 130 cooperates with the keyway of the sleeve seat to fix it and prevent it from rotating.

[0037] There are multiple groups of duckbill assemblies 300, which are installed between the moving plate 210 and the pressure plate 220. Any group of duckbill assemblies 300 includes a seed guide tube 310 and a hole former 320 that are connected. The seed guide tube 310 is close to the inner side of the hole sower, and the hole former 320 is arranged on the outer side of the hole sower. Seeds fall into the seed guide tube 310 from the seed discharge port 121 and fall into the hole former 320 as the hole sower rotates. The rotation of the hole sower causes the hole former 320 located on the outer side to form seed holes on the cultivated land, and the seeds fall from the hole former 320 into the seed holes to complete the sowing.

[0038] The working principle of the hole seeder and the specific structure and working principle of the duckbill assembly 300 are well known to those skilled in the art. For details, please refer to the Chinese utility model patent with publication number CN2774106Y and name of double controllable precision seeding disc and the Chinese utility model patent with publication number CN204539797U and name of a finger-clamping precision hole seeder.

[0039] In this embodiment, any group of duckbill assemblies 300 also includes a connecting plate portion 330, and two adjacent groups of duckbill assemblies 300 are detachably connected via the connecting plate portion 330. The connection spacing between any two connected groups of duckbill assemblies 300 is adjustable, and multiple groups of duckbill assemblies 300 are connected end to end to form an annular whole, and the multiple groups of duckbill assemblies 300 forming an annular whole are integrally installed on the moving disk assembly 200.

[0040] Since multiple groups of duckbill assemblies are connected end to end to form a ring-shaped whole, when the seed drill adjusts the plant spacing, multiple groups of duckbill assemblies 300 can be removed from the driven disk assembly 200 as a whole, so that the duckbill assemblies 300 can be disassembled separately, and there will be no interference with other components on the seed drill during disassembly, making the disassembly and assembly of the duckbill assemblies 300 easier, and greatly reducing the time spent. At the same time, when multiple groups of duckbill assemblies 300 are combined into a whole, since there is no interference from other components, the combination of multiple groups of duckbill assemblies 300 is also easier. Finally, multiple groups of duckbill assemblies 300 forming a ring-shaped whole can be installed on the driven disk assembly 200 as a whole.

[0041] The hole-seeking device of the present invention connects multiple groups of duckbill assemblies 300 end to end to form a ring-shaped whole through the connecting plate portion 330 on the duckbill assemblies 300, so that the disassembly and assembly of the multiple groups of duckbill assemblies 300 can be performed independently. Compared with the prior art, when disassembling and assembling the multiple groups of duckbill assemblies 300, since there are no other components occupying the operating space for disassembling and assembling the duckbill assemblies 300, the disassembly and assembly of the duckbill assemblies 300 is simpler, the operating difficulty is greatly reduced, and the operating time is saved.

[0042] In one embodiment, based on the above-mentioned embodiment, the seeding device is as follows: Figures 6 to 8 As shown, a plurality of fixing holes 331 are provided at intervals on the connecting plate portion 330 along the circumferential direction of the moving plate 210, and two adjacent connecting plate portions 330 are fixedly connected by the cooperation of fasteners and the fixing holes 331. Among them, the fasteners generally use bolts, nuts and washers. Two adjacent connecting plate portions 330 are overlapped up and down, and the fixing holes 331 on the two connecting plate portions 330 are connected up and down. The bolts pass through the two fixing holes 331 and are screwed with the nuts, and the washers are sleeved between the nuts and the connecting plate portions.

[0043] Since a plurality of fixing holes 331 are provided on the connecting plate portion 330 at intervals along the circumferential direction of the moving disk 210 , two adjacent connecting plate portions 330 are fixedly connected via different fixing holes 331 , thereby achieving the purpose of adjustable connection spacing between two groups of connected duckbill assemblies 300 .

[0044] In this way, by providing a plurality of fixing holes 331 at intervals along the circumferential direction of the moving disk 210 on the connecting plate portion 330 and fasteners cooperating with the fixing holes 331, the purpose of adjusting the connection spacing between the two groups of connected duckbill assemblies 300 is achieved, thereby simplifying the design of the connecting plate portion 330 and reducing the cost required to achieve the adjustable connection spacing between the two groups of connected duckbill assemblies 300.

[0045] In this embodiment, the fixing hole 331 includes a single hole and a waist hole. By cooperating between the waist hole and the single hole, or the waist hole and the waist hole, or the single hole and the single hole, the adjustability of the installation between adjacent groups of duckbill assemblies 300 is increased, so that multiple groups of duckbill assemblies 300 can be more easily connected end to end in sequence to form a ring.

[0046] In some other embodiments, the fixing holes 331 may all be waist holes, or all be single holes.

[0047] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Figures 1 to 4 As shown, the moving plate 210 is provided with an annular groove 211 to limit the plurality of duckbill assemblies 300 formed in an annular shape. The edges of the plurality of duckbill assemblies 300 formed in an annular shape are limited in the annular groove 211, thereby limiting the radial movement of the plurality of duckbill assemblies 300 formed in an annular shape relative to the moving plate 210 and the pressure plate 220.

[0048] It is understandable that, in some other embodiments, the annular groove 211 may be provided on both the movable plate 210 and the pressure plate 220 , or the annular groove 211 may be provided on the pressure plate 220 .

[0049] By providing an annular groove 211 on the movable plate 210 and / or the pressure plate 220, multiple groups of duckbill assemblies 300 forming an annular whole can be positioned and installed between the movable plate 210 and the pressure plate 220 through the annular groove 211, thereby simplifying the installation steps of the multiple groups of duckbill assemblies 300 forming an annular shape and reducing the installation difficulty and labor cost of the multiple groups of duckbill assemblies 300 forming an annular shape.

[0050] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Figure 1 to Figure 2 As shown, the moving plate 210 and the pressure plate 220 are connected by a plurality of screws 212 , and the plurality of screws 212 limit the rotation of the plurality of duckbill assemblies 300 forming a ring shape.

[0051] In this embodiment, the screw rod 212 stops on the duckbill assembly 300. Specifically, the screw rod 212 stops on the cavitation device 320.

[0052] In some other embodiments, connecting components are provided between adjacent duckbill assemblies 300 in the plurality of duckbill assemblies 300 forming a ring, and the screw rod 212 may also be stopped on the connecting components.

[0053] There are multiple groups of different fixed connection holes on the moving plate 210 and the pressure plate 220. For different groups of duckbill assemblies 300, multiple screws 212 are respectively connected to the moving plate 210 and the pressure plate 220 through different fixed connection holes.

[0054] Through the above-mentioned arrangement, the multiple screws 212 can not only fix the movable plate 210 and the pressure plate 220, but also play a role in limiting the multiple groups of duckbill assemblies 300 forming a ring shape, so that the multiple groups of duckbill assemblies 300 forming a ring shape no longer need to be fixedly installed on the movable plate 210 or the pressure plate 220, further simplifying the installation steps of the multiple groups of duckbill assemblies 300 forming a ring shape, and reducing the installation difficulty and labor cost of the multiple groups of duckbill assemblies 300 forming a ring shape.

[0055] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Figures 5 to 9 As shown, the connecting plate portion 330 connects the seed guiding tube 310 and the hole former 320 , and a through hole 335 communicating with the seed guiding tube 310 and the hole former 320 is provided on the connecting plate portion 330 .

[0056] In this way, the connecting plate portion 330 not only serves to connect the duckbill assemblies 300 of adjacent groups, but also connects the seed guide tube 310 and the hole former 320 in the duckbill assemblies 300 of this group and makes the two communicate with each other, further simplifying the structure of the duckbill assembly 300, reducing the components of the duckbill assembly 300, thereby reducing costs.

[0057] In one embodiment, based on the hole seeder of the aforementioned embodiment, as shown in the figure, the connecting plate portion 330 includes an arc-shaped first connecting plate 332, the seed guide tube 310 and the hole former 320 are connected to the first connecting plate 332, and the first connecting plate 332 of the duckbill assembly 300 of this group is detachably connected to the first connecting plate 332 of the duckbill assembly 300 of the adjacent group and the connection spacing is adjustable.

[0058] Specifically, a plurality of fixing holes 331 are provided on the first connecting plate 332 at intervals along the circumferential direction of the moving disk 210, and two adjacent groups of duckbill assemblies 300 are connected by cooperating with fasteners through the fixing holes 331 on the first connecting plate 332 of each group, and the connection spacing between the two connected groups of duckbill assemblies 300 is adjustable through connection through different fixing holes 331.

[0059] Through the above-mentioned arrangement, the first connecting plate 332 of the connecting plate portion 330 not only serves to connect the duckbill assemblies 300 of adjacent groups, but also connects the seed guide tube 310 and the hole former 320 in the duckbill assemblies 300 of this group and makes the two communicate with each other, further simplifying the structure of the duckbill assembly 300, reducing the components of the duckbill assembly 300, and thus reducing the cost.

[0060] Preferably, in this embodiment, a fixing member 334 is further connected to the connecting plate portion 330 of two adjacent groups of duckbill assemblies 300 .

[0061] Specifically, the first connecting plate 332 of the duckbill assembly 300 of this group and the first connecting plate 332 of the duckbill assembly 300 of the adjacent group are also connected with a fixing piece 334, and the fastener passes through the fixing piece 334 and the two first connecting plates 332 to fix the three together. The side of the fixing piece 334 close to the first connecting plate 332 is in an arc shape adapted to the shape of the first connecting plate 332.

[0062] refer to Fig.19 The hole sowing device is provided with nine groups of duckbill assemblies 300, wherein the connecting plate portion 330 of the duckbill assemblies 300 includes a first connecting plate 332, the seed guide tube 310 and the hole forming device 320 are connected to the first connecting plate 332, the first connecting plates 332 of two adjacent groups of duckbill assemblies 300 are staggered up and down, and the nine groups of duckbill assemblies 300 are connected to each other through the first connecting plates 332 so that the nine groups of duckbill assemblies 300 are connected end to end in sequence to form a ring. In this embodiment, the connection between two adjacent groups of duckbill assemblies 300 does not require a fixing member 334.

[0063] refer to Fig.18 The hole-seeker is provided with eight groups of duckbill assemblies 300, which are connected to each other through the first connecting plate 332 so that the eight groups of duckbill assemblies 300 are connected end to end in sequence to form a ring. In this embodiment, the connection between two adjacent groups of duckbill assemblies 300 does not require a fixing member 334.

[0064] refer to Fig.17 The seed drill is provided with seven groups of duckbill assemblies 300, which are connected to each other through a first connecting plate 332 so that the seven groups of duckbill assemblies 300 are connected end to end in sequence to form a ring. In this embodiment, a fixing member 334 is connected to the connecting plate portion 330 of two adjacent groups of duckbill assemblies 300.

[0065] By setting the fixing member 334, on the one hand, the fixing member 334 can increase the distance between the two adjacent groups of duckbill assemblies 300 by respectively connecting the connecting plate portions 330 of the two adjacent groups of duckbill assemblies 300, thereby avoiding the first connecting plate 332 from being set too long. On the other hand, the fixing member 334 can also enhance the reliability of the connection between the two adjacent groups of duckbill assemblies 300, thereby reducing or avoiding the shaking of the duckbill assemblies 300 during the use of the seed drill.

[0066] Different from the above-mentioned embodiment, in one embodiment, Figure 7 As shown, the connecting plate portion 330 also includes an arc-shaped second connecting plate 333. In this embodiment, the seed guide tube 310 and the hole former 320 are connected to the first connecting plate 332, and the two ends of the second connecting plate 333 are respectively detachably connected to the first connecting plate 332 of the duckbill assembly 300 of this group and the first connecting plate 332 of the duckbill assembly 300 of the adjacent group, and the connection spacing is adjustable.

[0067] In this embodiment, the first connecting plate 332 and the second connecting plate 333 are both provided with the fixing holes 331 in the above-mentioned embodiment, and two adjacent groups of duckbill assemblies 300 are connected by cooperating with fasteners through different fixing holes 331 on the first connecting plate 332 and the second connecting plate 333. Due to the addition of the second connecting plate 333, the spacing between the two adjacent groups of duckbill assemblies 300 can be larger, thereby making the adjustable range of the planter spacing larger.

[0068] In some other embodiments, the first connecting plate 332 may be provided with the fixing hole 331 in the aforementioned embodiment, and the second connecting plate 333 is only used to connect the first connecting plates 332 of two adjacent groups of duckbill assemblies 300 .

[0069] In some other embodiments, the second connecting plate 333 may be provided with the fixing hole 331 in the aforementioned embodiment, and the first connecting plate 332 is used to connect the second connecting plate 333 .

[0070] Through the above-mentioned arrangement, the connecting plate portion 330 is divided into a first connecting plate 332 and a second connecting plate 333. On the one hand, it is possible to avoid setting the connecting plate portion 330 too long in order to accommodate different numbers of duckbill assemblies 300, thereby simplifying the structure and size of the connecting plate portion 330 and reducing the cost of the duckbill assembly 300. On the other hand, the second connecting plate 3333 increases the versatility of the connecting plate portion 330, thereby increasing the adjustable range of the planter spacing.

[0071] Preferably, in this embodiment, a fixing member 334 is further connected to the connecting plate portion 330 of two adjacent groups of duckbill assemblies 300 .

[0072] Specifically, the fixing member 334 is connected to the second connecting plate 333 of the duckbill assembly 300 of the same group and the first connecting plate 332 of the duckbill assembly 300 of the adjacent group, and the fastener passes through the fixing member 334 and the second connecting plate 333 and the first connecting plate 332 to fix the three. The side of the fixing member 334 close to the first connecting plate 332 and the second connecting plate 333 is in an arc shape adapted to the shape of the first connecting plate 332 or the second connecting plate 333.

[0073] refer to Fig.15 The hole-seeding device is provided with five groups of duckbill assemblies 300, which are interconnected by connecting plates 330, so that the five groups of duckbill assemblies 300 are connected end to end in sequence to form a ring, and the connecting plates 330 of two adjacent groups of duckbill assemblies 300 are connected with fixing parts 334.

[0074] refer to Fig.16 Six groups of duckbill assemblies 300 are provided on the hole-seeking device, and the six groups of duckbill assemblies 300 are connected to each other through a connecting plate portion 330, so that the six groups of duckbill assemblies 300 are connected end to end in sequence to form a ring, and a fixing piece 334 is connected to the connecting plate portion 330 of two adjacent groups of duckbill assemblies 300.

[0075] The first connecting plate 332 and the second connecting plate 333 are connected by the fixing member 334 to avoid instability in the connection position caused by the two adjacent duckbill assemblies 300 being far apart, thereby further increasing the reliability of the connection between the two and preventing the duckbill assembly 300 from shaking during the use of the seed drill.

[0076] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Figure 1 , Figure 2 , Fig.10 As shown, the moving disk assembly 200 also includes a dial 230 and a plurality of partition slot plates 240. The dial 230 rotates with the moving disk 210. The partition slot plates 240 are fixed to the dial 230. The partition slot plates 240 and the dial 230 form a partition slot 250 connected to the seed guide tube 310. The dial 230 is provided with scale indications corresponding to different groups of duckbill assemblies 300. The partition slot plates 240 are fixed to the dial 230 according to the scale indications. The seed guide tube 310 and the partition slot plates 240 are arranged correspondingly.

[0077] The scale plate 230 cooperates with a plurality of dividing groove plates 240 to form a plurality of dividing grooves 250 on the scale plate 230, and the dividing grooves 250 correspond to the seed guide tubes 310 in the duckbill assembly 300. When the seed drill needs to adjust the plant spacing, the scale plate 230 and the dividing groove plates 240 are assembled and the plurality of duckbill assemblies 300 are connected in an annular manner as needed, and then the plurality of duckbill assemblies 300 forming an annular shape are matched with the dividing grooves 250 on the scale plate 230, and then the plurality of duckbill assemblies 300 forming an annular shape are fixed on the moving plate 210 to complete the plant spacing adjustment of the seed drill.

[0078] Through the above-mentioned arrangement, the installation accuracy of the multiple groups of duckbill assemblies 300 forming a ring on the seed drill can be ensured. At the same time, the scale on the dial 230 can also prevent the user from making mistakes when assembling the dial 230 and the multiple dividing slot plates 240, further improving the accuracy of the seed drill assembly process and reducing labor costs.

[0079] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Fig. 9 As shown, the seed guide tube 310 is hollow to form a seed guide channel 316 connected to the hole former 320. The seed guide tube 310 extends in a direction away from the hole former 320 and the cross-sectional area of ​​the seed guide channel 316 gradually increases in the extending direction. One end of the seed guide tube 310 away from the hole former 320 is connected to the dividing groove 250.

[0080] This arrangement increases the area of ​​one end of the seed guide tube 310 close to the dividing groove 250, reduces the probability that the seeds discharged from the seed discharge port 121 do not fall into the duckbill assembly 300, and thus reduces the hole rate when the hole seeder is sowing.

[0081] Preferably, the cross-sectional area of ​​the end of the seed guide tube 310 close to the hole former 320 is S1, and the cross-sectional area of ​​the end of the seed guide tube 310 away from the hole former 320 is S2, and S2>2*S1.

[0082] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Figures 7 to 9 As shown, the seed guide tube 310 includes a bottom plate 311, a first side wall 312, a second side wall 313, a third side wall 314 and a fourth side wall 315. The bottom plate 311 is provided with a seed outlet 3111 connected to the hole former 320. Four side walls are arranged around the seed outlet 3111 and extend from one end of the bottom plate 311 in a direction away from the hole former 320 so that the four side walls enclose the seed guide channel in the above technical solution. The first side wall 312 and the second side wall 313 are arranged at intervals in the rotation direction of the moving disk 210, and the third side wall 314 and the fourth side wall 315 are connected to both sides of the first side wall 312 and the second side wall 313 respectively.

[0083] The bottom plate 311 is used to connect the connecting plate portion 330. Specifically, the bottom plate 311 is connected to the first connecting plate 332 via a fastener.

[0084] The hole drill can be installed on both sides of the seeder, thereby increasing the sowing speed and efficiency of the seeder. Figures 9 to 11 As shown, the third side wall 314 and the fourth side wall 315 are symmetrically distributed on the bottom plate 311, and the third side wall 314 and the fourth side wall 315 extend vertically in a direction away from the hole forming device 320, so that the distance between the two in the extension direction remains unchanged, and a partition 260 is provided in the dividing groove 250, and the partition 260 is connected to the third side wall 314 or the fourth side wall 315. The hole seeder is installed on the left or right side of the seed drill so that the third side wall 314 or the fourth side wall 315 is respectively connected to the partition 260, so that the hole seeder can be used on both sides.

[0085] Among them, in the rotation direction of the moving disk 210, the first side wall 312 is located in front of the second side wall 313, and the first side wall 312 extends in the direction away from the hole former 320 and is inclined along the rotation direction of the moving disk 210, so that the cross-sectional area of ​​the seed guide tube 310 gradually increases in the extension direction away from the hole former 320.

[0086] In this way, the hole seeder can be used on both sides of the seeder, further reducing the adaptation cost of the hole seeder.

[0087] In one embodiment, based on the above-mentioned embodiment, the seeding device, such as Figure 12 to Figure 13As shown, the finger clamp assembly 400 includes a finger clamp plate 410 and a plurality of finger clamps 420, and the finger clamps 420 are rotatably mounted on the finger clamp plate 410. The finger clamps 420 include a seed clamping portion 421 and a rotating rod 422, and tension springs 423 are connected between adjacent rotating rods 422. The rotating rods 422 rotate under the action of the cam plate 130 to clamp seeds.

[0088] Specifically, the rotating rod 422 is further provided with a tension spring plate 4221 and a swing block 4222, the tension spring 423 is connected to the tension spring plate 4221, and the swing block 4222 is formed by extending one end of the rotating rod 422 along the radial direction of the rotating rod 422. The finger clamp assembly 400 further includes a rear cover plate, and a space for the rotating rod 422 to rotate is formed between the rear cover plate and the finger clamp plate 410.

[0089] The finger clamp plate 410 is provided with a slot 411 rotatably connected to the rotating rod 422, so that the finger clamp 420 can rotate in the finger clamp plate 410. The cam plate 130 is provided with a high step 131, a low step 132 and a transition slope 133 connected between the high step 131 and the low step 132. As the finger clamp 420 rotates relative to the cam plate 130, the swing block 4222 is driven by the high step 131, the low step 132 and the transition slope 133 to rotate when passing through the cam plate 130, thereby clamping the seeds. Tension springs 423 are connected between adjacent finger clamps 420 for resetting the finger clamps 420, thereby ensuring that the finger clamps 420 can complete the clamping and sowing actions.

[0090] In order to make the finger clamp 420 correspond to the duckbill assembly 300, so that the seeds clamped by the finger clamp assembly 400 can enter the duckbill assembly when falling into the seed discharge port 121, instead of falling between the moving disk assembly and the fixed disk assembly, in one embodiment, reference Fig.12 , Fig.14 The seed clamping part 421 is detachably mounted on the rotating rod 422. The detachability of the seed clamping part 421 enables the remaining seed clamping parts 421 on the finger clamping assembly 400 to correspond to the number and position of the multiple groups of duckbill assemblies 300. After the seed clamping parts 421 corresponding to the duckbill assemblies 300 clamp the seeds, when passing through the bell discharge port, the clamped seeds fall from the seed discharge port 121 into the seed guide tube 310 of the corresponding duckbill assembly 300.

[0091] Among them, the seed clamping part 421 and the rotating rod 422 are detachable through the keyway cooperation, and the positioning of the two is achieved through the keyway cooperation, so that after the seed clamping part 421 is installed on the rotating rod 422, the relative position and angle can be guaranteed to be accurate, thereby ensuring that the seed clamping part installed on the rotating rod 422 can clamp the seed during the rotation of the rotating rod 422.

[0092] Through the above-mentioned arrangement, when the seed drill needs to adjust the plant spacing, it is only necessary to remove the seed clamping part 421 from the rotating rod 422, without disassembling the entire finger clamp assembly 400 and replacing the finger clamp 420 therein, thereby further saving the accessories required to be replaced when the seed drill adjusts the plant spacing, reducing the number of accessories that the user needs to prepare, saving the user's cost, and also reducing the time spent on adjusting the plant spacing of the seed drill.

[0093] In some other embodiments, the finger clamp assembly 400 may be disassembled and some of the finger clamps 420 may be replaced with finger clamps 420 without the clamping seed portion 421 , so that the finger clamps 420 with the clamping seed portion 421 correspond to the duckbill assembly 300 .

[0094] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A seed drill, comprising: A fixed plate assembly, comprising a fixed seed plate and a cam plate; A moving disc assembly rotates relative to the seed taking disc, and the moving disc assembly comprises a moving disc and a pressure disc which are arranged in parallel and fixedly connected; A duckbill assembly, which is provided with a plurality of groups, wherein the duckbill assembly is installed between the moving plate and the pressure plate; and A finger clamp assembly rotates around the axis of the moving disc assembly as the moving disc assembly rotates. The rotating finger clamp assembly clamps seeds under the action of the cam disc. The seed taking disc is provided with a seed discharge port on the rotation path of the seeds. The seeds are discharged into the duckbill assembly through the seed discharge port. It is characterized in that the duckbill assembly includes a connecting plate portion, and two adjacent groups of duckbill assemblies are detachably connected through the connecting plate portion, the connection spacing between any two adjacent groups of duckbill assemblies is adjustable, and multiple groups of duckbill assemblies are connected end to end to form a ring-shaped whole.

2. A seed drill as claimed in claim 1, characterized in that: The connecting plate portion is provided with a plurality of fixing holes at intervals along the circumferential direction of the moving plate, and two adjacent connecting plate portions are fixedly connected by fasteners cooperating with the fixing holes.

3. A hole seeding device as claimed in claim 1, characterized in that: The movable plate and / or the pressure plate are provided with an annular groove to limit the multiple groups of duckbill assemblies formed in an annular shape. The movable plate and the pressure plate are connected by multiple screws, and the multiple screws limit the rotation of the multiple groups of duckbill assemblies formed in an annular shape.

4. A seed drill as claimed in claim 1, characterized in that: The duckbill group includes a seed guide tube and a hole former, the connecting plate portion connects the seed guide tube and the hole former, and the connecting plate portion is provided with a through hole connecting the seed guide tube and the hole former.

5. A hole seeding device as claimed in claim 4, characterized in that: The connecting plate portion includes an arc-shaped first connecting plate, the seed guide tube and the hole former are connected to the first connecting plate, and the first connecting plate of the duckbill assembly of this group is detachably connected to the first connecting plate of the duckbill assembly of the adjacent group, and the connection spacing is adjustable.

6. A seed drill as claimed in claim 4, characterized in that: The connecting plate portion includes an arc-shaped first connecting plate and a second connecting plate, the seed guide tube and the hole former are connected to the first connecting plate, and the two ends of the second connecting plate are detachably connected to the first connecting plate of the duckbill assembly of this group and the first connecting plate of the duckbill assembly of the adjacent group, and the connection spacing is adjustable.

7. A hole sowing device as claimed in claim 5 or 6, characterized in that: The connecting plate parts of two adjacent groups of duckbill assemblies are also connected with fixing parts.

8. A hole seeding device as claimed in claim 4, characterized in that: The moving disk assembly also includes a dial and a plurality of dividing slot plates, wherein the dividing slot plates are fixed to the dial, and the dividing slot plates and the dial form dividing slots that connect the seed guide tube. The dial is provided with scale indications corresponding to different groups of duckbill assemblies, and the dividing slot plates are fixed to the dial according to the scale indications, and the seed guide tube and the dividing slot plates are arranged correspondingly.

9. A hole seeding device as claimed in claim 8, characterized in that: The seed guide tube extends in a direction away from the hole former, and the cross-sectional area of ​​the seed guide tube gradually increases in the extending direction. One end of the seed guide tube away from the hole former is connected to the dividing groove.

10. A hole seeding device as claimed in claim 1, characterized in that: The finger clamp assembly includes a finger clamp plate and a plurality of finger clamps, wherein the finger clamp is rotatably mounted on the finger clamp plate, the finger clamp includes a clamping portion and a rotating rod, springs are connected between adjacent rotating rods, the rotating rod rotates under the action of the cam plate, and the clamping portion is detachably mounted on the rotating rod.

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