A compound seed meter

Abstract

The application discloses a kind of composite seed metering device, comprising: shell, with installation space, installation space top is equipped with inlet, installation space side is equipped with installation opening, installation space two opposite side walls are equipped with the rotating hole of alignment, shell bottom is equipped with with installation space communication's drop funnel;Movable cover, movable installation in the side of shell corresponding installation opening, with cover installation opening's installation state and open installation opening's open state;Shaft core component, detachable installation in shell and can be rotated along rotating hole activity, including roll core;Limiting structure, connect to shell, for the limiting of movable cover in installation state.The setting of the present application movable cover makes that shaft core component can be quickly disassembled and replaced through installation opening, without overall replacement seed metering device, greatly reduce the time and labor intensity of replacement operation, also can quickly replace roll core and realize the seeding operation of different crops.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular, to a composite seed sowing device. BACKGROUND

[0002] In modern agricultural production, as an important agricultural equipment, the performance and applicability of the seed sowing device of the seeding machine plays a key role in the efficiency and quality of the seeding operation. However, the existing seed sowing device of the seeding machine has many limitations in practical application. On the one hand, the structure of the traditional seed sowing device is relatively fixed, and it can usually only be used for the seeding of a few specific crops, and cannot meet the needs of diversified crop planting. For example, the shapes and sizes of seeds of different crops are quite different, and the design of the seed sowing groove of the existing seed sowing device can usually only adapt to a single or a few seed types. On the other hand, when the seeding crop needs to be changed, the replacement process of the traditional seed sowing device is extremely tedious. Since the overall structure cannot be disassembled, a lot of time and effort is needed to replace the seed sowing device, which not only increases the labor intensity of the operation personnel, but also seriously affects the continuity and efficiency of the seeding operation. This inconvenient operation problem is particularly prominent in actual agricultural production, especially in areas where multiple crops are rotated or intercropped, and frequent replacement of the seed sowing device becomes an important factor restricting the efficient operation of the seeding machine. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a composite seed sowing device.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0005] A composite seed sowing device, comprising: a housing having a mounting space, the mounting space being provided with an inlet at the top and an installation opening at the side, two opposite side walls of the mounting space being provided with aligned rotating holes, and the bottom of the housing being provided with a material falling funnel communicating with the mounting space; a movable cover movably installed on one side of the housing corresponding to the installation opening, having a mounting state of covering the installation opening and an open state of opening the installation opening; a shaft core assembly, which is detachably installed on the housing and can rotate in the rotating hole, comprising a roller core, the peripheral wall of the roller core being provided with a seed sowing groove; the roller core can be detached from the mounting space through the installation opening; a limiting structure connected to the housing for limiting the movable cover in the mounting state, so that the movable cover is stably in the mounting state.

[0006] Further, the bottom of the movable cover is hinged to the bottom side of the installation opening of the housing; the limiting structure is a limiting protrusion provided on the movable cover, and the limiting protrusion is located above the installation opening.

[0007] Further, a material blocking plate is connected to the inner side of the movable cover, and in the mounted state, the material blocking plate is located between the movable cover and the roller core, and is used to block the seeds from falling into the seed dropping funnel.

[0008] Further, a brush is mounted on the shell and is in contact with the surface of the roller core; the brush and the material blocking plate are located on the two sides of the upper half of the roller core, respectively.

[0009] Further, the material blocking plate is hinged to the movable cover, the movable cover is provided with a top limiting block located above the material blocking plate, and a pin is transversely inserted into the movable cover and located below the material blocking plate, so as to support the material blocking plate and make the material blocking plate open to block the seeds.

[0010] Further, the outer peripheral wall of the roller core is provided with a ring cutting groove, the ring cutting groove is communicated with the seed dropping groove, and a seed cleaning knife is mounted on the shell or the movable cover and partially embedded in the ring cutting groove, so as to push away the seeds remaining in the seed dropping groove.

[0011] Further, the movable cover is provided with a mounting block, the mounting block is provided with a slot, the side wall of the slot is provided with a through hole, the seed cleaning knife is embedded in the slot and is provided with a mounting hole corresponding to the through hole, the mounting hole is aligned with the through hole and is provided with a fastener.

[0012] Further, the shell comprises two mounting plates, the mounting space is formed between the two mounting plates, and the rotating hole is arranged on the corresponding side of the mounting plate; the shaft core assembly further comprises two connecting discs, the connecting disc comprises a disc body and a centering protrusion, the centering protrusion protrudes from the center of the disc body, the two disc bodies are located in the mounting space, and the centering protrusions on the two disc bodies are rotatably mounted in the rotating holes on the two sides; the roller core is detachably embedded between the two connecting discs and can rotate with the two connecting discs; the overall profile of the two connecting discs and the roller core is smaller than the mounting opening, so that the roller core can be embedded in the mounting space from the mounting opening.

[0013] Further, the opposite sides of the two mounting plates are provided with protruding annular protrusions, the annular protrusions are provided with notches corresponding to the mounting openings, the two sides of the roller core are provided with positioning protrusions capable of passing through the corresponding notches, the positioning protrusions are attached to the inner walls of the annular protrusions to rotate along the inner walls of the annular protrusions; the opposite sides of the two disc bodies are provided with positioning grooves for embedding the positioning protrusions; one end of the centering protrusion away from the disc body is provided with an embedding groove, and a transmission shaft is embedded in the embedding groove; the inner side of the movable cover corresponding to the notch is provided with an arc-shaped strip; in the mounted state, the arc-shaped strip is embedded in the notch, and the inner wall of the arc-shaped strip has the same diameter as the inner wall of the annular protrusion and is concentrically arranged.

[0014] Further, the back side of the two mounting plates is provided with an extension positioning cylinder surrounding the edge of the rotating hole; the circumferential wall of the extension positioning cylinder, on which the centering protrusion protrudes, is provided with a clamping groove, and the clamping groove is embedded with a check ring; the check ring and the centering protrusion are clamped with an adjusting pad in front.

[0015] The present application has the following beneficial effects:

[0016] By designing the detachable shaft core assembly, the roller core of different specifications can be replaced to adapt to the shape and size of different crop seeds, so that the roller core can be quickly replaced to realize the seeding operation of different crops, thereby meeting the seeding demand of multiple crops. This modular design breaks through the limitation of single applicability of the traditional seed sizer, significantly improves the universality and flexibility of the seed sizer; the setting of the movable cover enables the shaft core assembly to be quickly detached and replaced through the installation opening, without the need to replace the seed sizer as a whole, thereby greatly reducing the time and labor intensity of the replacement operation. The limiting structure can effectively limit the movable cover, ensuring the stability of the movable cover in the installed state, thereby ensuring the smooth progress of the seeding operation.

[0017] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate the preferred embodiments of the application and assist in the explanation of the application. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the overall structure of an embodiment of the present application; Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of the overall structure of an embodiment of the present application; Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 4 is a schematic diagram of the overall structure of an embodiment of the present application; Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0023] Figure 5 is a sectional view of the movable cover in the installed state;

[0024] Figure 6 is a sectional view of the movable cover in the installed state;

[0025] Figure 7 is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 8 is Figure 7 a disassembled structural schematic view of the embodiment of the application;

[0027] Figure 9 is a sectional view of another embodiment of the application;

[0028] Figure 10 is a structural schematic view of the series connection of the composite seed metering device;

[0029] Figure 11 is a structural schematic view of a roller core.

[0030] Legend:

[0031] housing 100, mounting space 110, material inlet 111, mounting opening 112, rotating hole 113, material falling funnel 120, brush 130, mounting plate 140, extension positioning cylinder 141, annular protrusion 150, notch 151, air flow channel 160, air fan 161;

[0032] movable cover 200, top limiting block 210, bayonet pin 220, mounting block 230, insertion slot 231, perforation 232, arc-shaped strip 240;

[0033] shaft core assembly 300, roller core 310, seed metering groove 311, ring cutting groove 312, positioning protrusion 313, connecting disc 320, disc body 321, centering protrusion 322, positioning groove 323, clamping groove 324, retaining ring 325, embedding groove 326, transmission shaft 330, sunken groove 331, adjustment pad 340;

[0034] limiting structure 400;

[0035] material blocking plate 500;

[0036] seed cleaning knife 600, mounting hole 610;

[0037] series connection cylinder 700. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] It should be noted that all direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0041] In addition, the descriptions involving "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0042] Please refer to Figure 1 and Figure 2 , the present application provides a composite seed metering device in one preferred embodiment, which comprises a shell 100, a movable cover 200, a shaft core assembly 300 and a limiting structure 400.

[0043] The shell 100 has a mounting space 110, and the top of the mounting space 110 is provided with a feeding port 111. A discharging plate is slidingly installed at the feeding port 111. The side of the mounting space 110 is provided with a mounting opening 112, and the two opposite side walls of the mounting space 110 are provided with aligned rotating holes 113. The bottom of the shell 100 is provided with a discharging funnel 120 which communicates with the mounting space 110.

[0044] The movable cover 200 is movably installed on one side of the shell 100 corresponding to the mounting opening 112. The movable cover 200 has a mounting state of covering the mounting opening 112 and an open state of opening the mounting opening 112. The movable cover 200 is movably installed on the shell 100 to realize state switching.

[0045] The shaft core assembly 300 is detachably installed on the shell 100 and can rotate movably along the rotating hole 113. The shaft core assembly 300 comprises a roller core 310, and the peripheral wall of the roller core 310 is provided with a seed metering groove 311. The roller core 310 can be detached and separated from the mounting space 110 through the mounting opening 112. It can be understood that the shell 100 will be fixedly installed on the frame of the seeding machine, and a rotating driving mechanism will be arranged on the frame to drive the shaft core assembly 300 to rotate, thereby realizing seed metering.

[0046] The limiting structure 400 is connected to the shell 100, and the limiting structure 400 is used for limiting the movable cover 200 in the mounting state, so that the movable cover 200 is stably in the mounting state.

[0047] In a preferred embodiment of the present application, a composite seed sowing device is provided, by designing a detachable shaft core assembly 300, different specifications of roller cores 310 can be replaced to adapt to the shape and size of different crop seeds, so that the roller cores can be quickly replaced to realize the sowing of different crops, thereby meeting the sowing needs of various crops. Figure 2 As shown in FIG. 6, the roller core 310 is used for sowing rape seeds. Figure 11 As shown in FIG. 7, the roller core 310 is used for sowing corn seeds, and of course other crops such as sorghum, wheat, soybean, etc. can also be sown as needed. This modular design breaks through the limitation of single applicability of traditional seed sowing devices, significantly improving the versatility and flexibility of the seed sowing device; the setting of the movable cover 200 enables the shaft core assembly 300 to be quickly detached and replaced through the installation opening 112, without the need to replace the entire seed sowing device, greatly reducing the time and labor intensity of the replacement operation. The limiting structure 400 can effectively limit the movable cover 200, ensuring its stability in the installed state, thereby ensuring the smooth progress of the sowing operation. By adjusting the rotation speed of the roller core 310, the sowing density can be flexibly controlled to meet the planting requirements of different crops.

[0048] Referring to Figure 3 In some embodiments of the present application, the bottom of the movable cover 200 is hinged to the bottom side of the installation opening 112 of the shell 100; the limiting structure 400 is a limiting protrusion provided on the movable cover 200, the limiting protrusion is located above the installation opening 112, and the limiting protrusion is used to limit the top of the movable cover 200 in the installed state, so that it cannot move towards the open state. The protruding surface of the limiting protrusion is a circular arc surface, so that when closing and opening, the movable cover 200 can be gradually deformed to pass over the limiting protrusion. When the bottom of the movable cover 200 is hinged and forced to open or close and contacts the limiting protrusion, the top of the movable cover 200 can be slightly deformed to pass over the limiting protrusion, thereby successfully opening or closing.

[0049] Referring to Figure 7 In some embodiments of the present application, a material blocking plate 500 is further included, the material blocking plate 500 is connected to the inner side of the movable cover 200, in the installed state, the material blocking plate 500 is located between the movable cover 200 and the roller core 310, and is used to block the seeds from falling into the seed dropping funnel 120 from the material blocking plate 500. So that the seeds can only be sowed by rotating the embedded seed sowing groove 311.

[0050] Referring to Figure 5 and Figure 9In further embodiments of the present application, a brush 130 is mounted on the shell 100 and is in surface contact with the roller core 310; the brush 130 is provided on a base plate which is fixedly mounted on the shell 100. The brush 130 and the material blocking plate 500 are respectively located on the two sides of the upper half of the roller core 310. Specifically, in this embodiment, the material blocking plate 500 is located on the right side of the upper half of the roller core 310, and the brush 130 is located on the left side of the upper half of the roller core 310. The roller core 310 rotates counterclockwise, and the material blocking plate 500 prevents the material from falling from the right side of the roller core 310 to the material falling hopper 120. The counterclockwise rotation of the roller core 310 drives the seeds in the seed arranging groove 311 to rotate towards the brush 130, until the seeds fall out of the seed arranging groove 311 due to their own gravity and drop into the material falling hopper 120 to achieve material arranging. The brush 130 blocks the seeds adhering to the positions of the roller core 310 other than the seed arranging groove 311, and brushes the seeds away from the roller core 310, so as to achieve seed arranging and prevent the seeds from adhering to other positions of the roller core 310, which leads to uncontrollable seed arranging quantity.

[0051] With reference to Figure 9 In further embodiments of the present application, the material blocking plate 500 is hinged to the movable cover 200, and the movable cover 200 is provided with a top limiting block 210 located above the material blocking plate 500. A pin 220 is transversely inserted into the movable cover 200 and is located below the material blocking plate 500, so as to support the material blocking plate 500 and make the material blocking plate 500 open to block the seeds. When the material blocking plate 500 is opened, one end of the material blocking plate 500 is adjacent to the peripheral wall of the roller core 310, so as to effectively block the seeds. Through the top limiting block 210 and the pin 220, the circumferential position of the material blocking plate 500 is limited, so that the position of the material blocking plate 500 is stable when the material blocking plate 500 is used to block the seeds. When it is needed to arrange all the seeds, the pin 220 can be pulled out and removed, so that the material blocking plate 500 rotates downward under the action of gravity and thus the blocking of the seeds is released, so that the seeds on this side can be completely arranged.

[0052] With reference to Figure 2 In further embodiments of the present application, the peripheral wall of the roller core 310 is provided with a ring cutting groove 312 which is in communication with the seed arranging groove 311. A seed cleaning knife 600 is mounted on the shell 100 or the movable cover 200, and the seed cleaning knife 600 is partially embedded in the ring cutting groove 312, so as to push the seeds remaining in the seed arranging groove 311 away. The seed cleaning knife 600 is located at the lower half of the roller core 310 and is embedded in the ring cutting groove 312 at the lower half of the roller core 310. The seed arranging grooves 311 are arranged in a ring shape, and one ring cutting groove 312 connects the seed arranging grooves 311 in the same ring arrangement. When the seeds are stuck in the seed arranging groove 311 and do not fall due to gravity, the seed cleaning knife 600 can push the seeds remaining in the seed arranging groove 311 away, so as to achieve smooth seed arranging.

[0053] With reference to Figure 7 and Figure 8In further embodiments of the present application, the movable cover 200 is provided with a mounting block 230, the mounting block 230 is provided with a slot 231, the side wall of the slot 231 is provided with a through hole 232, the seed cleaning knife 600 is embedded in the slot 231 and is provided with a mounting hole 610 corresponding to the through hole 232, the mounting hole 610 is aligned with the through hole 232 and is provided with a fastener, the fastener is a positioning pin, the positioning and fixed installation of the seed cleaning knife 600 is realized through the alignment of the slot 231 and the hole position, and the installation precision of the seed cleaning knife 600 is ensured.

[0054] With reference to Figure 2 , Figure 3 and Figure 4 In further embodiments of the present application, the shell 100 includes two mounting plates 140, the mounting space 110 is formed between the two mounting plates 140, and the rotating hole 113 is arranged on the corresponding mounting plate 140. It can be understood that the side of the mounting space 110 away from the mounting opening 112 is provided with a connecting plate to connect the two mounting plates 140 and close the side. When it is necessary to disassemble and replace the roller core 310, the movable cover 200 can be switched to the open state.

[0055] The shaft core assembly 300 further includes two connecting discs 320, the connecting disc 320 includes a disc body 321 and a centering protrusion 322, the centering protrusion 322 protrudes from the center of the disc body 321, the two disc bodies 321 are located in the mounting space 110, and the centering protrusions 322 on the two disc bodies 321 are respectively rotatably installed in the rotating holes 113 on the two sides, so that rotatable installation is realized. That is, the centering protrusion 322 on the disc body on the front side protrudes forward and is rotatably installed in the rotating hole 113 on the front mounting plate 140, and the centering protrusion 322 on the disc body on the rear side protrudes backward and is rotatably installed in the rotating hole 113 on the rear mounting plate 140.

[0056] The roller core 310 is detachably embedded between the two connecting plates 320 and can rotate with the two connecting plates 320; the overall profile of the two connecting plates 320 and the roller core 310 is smaller than the installation opening 112 so as to be embedded into the installation space 110 from the installation opening 112. During installation, the two connecting plates 320 enter the installation space 110 from the installation opening 112 in sequence, and the centering protrusions 322 are embedded into the rotating holes 113, and then the roller core 310 is embedded between the two connecting plates 320 from the installation opening 112 into the installation space 110. The disassembly is reversed, and the installation and disassembly do not need to disassemble the installation shell 100, and the disassembly is simple and convenient. By setting the two connecting plates 320 and the detachable roller core 310, the installation and disassembly of the roller core 310 are more convenient, and the work efficiency is significantly improved; the roller core 310 of the seed slot 311 of the corresponding specification can be adjusted or replaced according to different seed types and seeding requirements, greatly improving the universality and flexibility of the seed metering device; when the roller core 310 is damaged or stuck, the roller core 310 can be quickly replaced without replacing the entire seed metering device, reducing maintenance cost and time.

[0057] In further embodiments of the application, the opposite sides of the two mounting plates 140 are provided with raised annular protrusions 150, which are provided with notches 151 corresponding to the mounting openings 112, and the roller core 310 is provided with positioning protrusions 313 on both sides that can pass through the corresponding notches 151, and the positioning protrusions 313 are in contact with the inner wall of the annular protrusions 150 to rotate along the inner wall of the annular protrusions 150; in order to make the roller core 310 cooperate stably with the annular protrusions 150 and make the roller core 310 rotate in balance, the positioning protrusions 313 are uniformly arranged in multiple, so that there is always a positioning protrusion 313 in contact with the inner wall of the annular protrusion 150, ensuring radial positioning. It can be understood that the inner wall of the annular protrusion 150 is a cylindrical surface, and the positioning protrusion 313 is a corresponding matching arc-shaped strip, so as to realize rotational positioning. It can be understood that the thickness of the roller core 310 at the position of the positioning protrusion 313 is less than the distance between the two annular protrusions 150 on both sides, so that when mounted, the roller core 310 can pass between the two annular protrusions 150 on both sides. The inner side of the movable cover 200 is provided with an arc-shaped strip 240 corresponding to the notch 151; in the mounted state, the arc-shaped strip 240 is embedded in the notch 151, the inner wall of the arc-shaped strip 240 has the same diameter as the inner wall of the annular protrusion 150 and is concentrically arranged, and the arc-shaped strip 240 is embedded in the notch 151 to realize complete limiting of the positioning protrusion 313, avoiding the positioning protrusion 313 from shaking in the notch 151. The opposite sides of the two disc bodies 321 are provided with positioning grooves 323 for the positioning protrusions 313 to be embedded in; so that the positioning protrusions 313 embedded in the positioning grooves 323 realize torque transmission between the disc body 321 and the roller core 310, so that the roller core 310 can rotate synchronously with the disc body 321. In addition, it can be understood that in the mounted state, the disc body 321 is embedded in the groove formed by the annular protrusion 150, so as to reduce the interference of the disc body 321 that has been installed in place with the installation of the other disc body 321. It can be understood that the axial dimension of the integral connecting disc 320 is less than the distance between the two annular protrusions 150 on both sides, so that when mounted, it can pass through the distance between the two annular protrusions 150 on both sides to realize installation. The end of the centering protrusion 322 away from the disc body 321 is provided with an embedding groove 326, and the embedding groove 326 is embedded with a transmission shaft 330; the transmission shaft 330 is embedded in the embedding groove 326 to transmit power, thereby realizing positioning and installation of the transmission shaft 330 and the connecting disc 320. The cross-sectional profile of the transmission shaft 330 and the embedding groove 326 is a regular polygon, thereby directly realizing power transmission, without the need for additional torque transmission through a connecting key, and the installation is more convenient. The center of the end surface of the transmission shaft 330 away from the centering protrusion is provided with a sunken groove 331, and the groove bottom of the sunken groove 331 and the groove bottom of the embedding groove 326 are provided with corresponding hole positions to be fixed by screws, the sunken groove 331 can hide the screws, facilitating subsequent structural interference when the transmission shaft 330 is connected in series. As shown in Figure 10 when two seeders are connected in series, a series cylinder 700 can be connected on the transmission shafts 330 on the opposite sides of the two seeders, and the series cylinder 700 is provided with a central hole in the center for the transmission shaft 330 to be embedded to realize torque transmission.

[0058] In further embodiments of the present application, the back side of the two mounting plates 140 is provided with an extended positioning cylinder 141 surrounding the edge of the rotating hole 113; so that there is enough length to position and cooperate with the centering protrusion 322, so that the centering protrusion 322 rotates more stably. The protruding extension of the circumferential wall of the positioning cylinder 141 is provided with a clamping groove 324, and the clamping groove 324 is embedded with a check ring 325, so as to axially limit the centering protrusion 322, realize the axial positioning of the connecting disc 320, and the check ring 325 and the centering protrusion 322 are clamped with an adjusting pad 340 in front of them, so as to eliminate the installation gap, and the adjusting pad 340 with the corresponding thickness can be selected according to the actual installation gap.

[0059] Referring to Figure 6 In some embodiments of the present application, the housing 100 is provided with an air flow channel 160 on one side of the bottom of the installation space, the bottom of the air flow channel 160 is connected with the upper end of the material falling funnel 120, and the top of the air flow channel 160 is provided with a fan 161, so as to send air to the material falling funnel 120, so as to realize rapid and smooth seed dropping.

[0060] Of course, in other embodiments of the present application, as shown in Figure 7 The air flow channel 160 and the fan 161 can also not be provided to assist in seed dropping, and the cost of the equipment can be reduced.

[0061] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A composite seed metering device, characterized in that, The utility model relates to a seed sowing device, including: A shell (100) has an installation space (110), the installation space (110) top is equipped with the inlet (111), the installation space (110) side is equipped with the installation opening (112), the installation space (110) two opposite side walls are equipped with the rotation hole (113) alignment, the shell (100) bottom is equipped with the drop funnel (120) with installation space (110) intercommunication; Movable cover (200), movable cover (200) is installed in the shell (100) one side corresponding installation opening (112) with installation opening (112) cover, and installation opening (112) is opened with the open state of installation opening (112); Shaft core subassembly (300), detachable installation shell (100) and can rotate along the rotation hole (113) activity, including roller core (310), the roller core (310) peripheral wall is equipped with the seed slot (311), the roller core (310) can be removed from installation opening (112) and separate installation space (110); Limit structure (400), connected to the shell (100), for the movable cover (200) of installation state is limited, so that movable cover (200) stably in installation state, the shell (100) includes two mounting plates (140), the installation space (110) is formed between two mounting plates (140), the rotation hole (113) is equipped with the mounting plate (140) in corresponding side, The shaft core assembly (300) further comprises two connecting discs (320), each of which comprises a disc body (321) and a centering protrusion (322) protruding from the center of the disc body (321), and the two disc bodies (321) are located in the installation space (110), and the centering protrusions (322) on the two disc bodies (321) are respectively rotatably installed in the rotating holes (113) on the two sides; the roller core (310) is detachably embedded between the two connecting discs (320) and can rotate with the two connecting discs (320); the overall profile of the two connecting discs (320) and the roller core (310) is smaller than the installation opening (112) so as to be embedded into the installation space (110) from the installation opening (112); the opposite sides of the two installation plates (140) are provided with protruding annular protrusions (150), the annular protrusions (150) are provided with notches (151) corresponding to the installation openings (112), the two sides of the roller core (310) are provided with positioning protrusions (313) capable of penetrating the corresponding notches (151), the positioning protrusions (313) are attached to the inner walls of the annular protrusions (150) so as to rotate along the inner walls of the annular protrusions (150); the opposite sides of the two disc bodies (321) are provided with positioning grooves (323) for embedding the positioning protrusions (313); the end of the centering protrusion (322) away from the disc body (321) is provided with an embedding groove (326), and the embedding groove (326) is embedded with a transmission shaft (330); the inner side of the movable cover (200) corresponding to the notch (151) is provided with an arc-shaped strip (240); in the installed state, the arc-shaped strip (240) is embedded in the notch (151), and the inner wall of the arc-shaped strip (240) has the same diameter as the inner wall of the annular protrusion (150) and is concentrically arranged.

2. The composite seed meter of claim 1, wherein, The bottom of the movable cover (200) is hingedly connected to the bottom side of the installation opening (112) of the shell (100); the limiting structure (400) is a limiting protrusion provided on the movable cover (200), and the limiting protrusion is located above the installation opening (112).

3. The composite seed meter of claim 1, wherein, Further comprising a material blocking plate (500) connected to the inner side of the movable cover (200), and in the installed state, the material blocking plate (500) is located between the movable cover (200) and the roller core (310) and is used for blocking the seeds from falling into the seed dropping funnel (120) from the material blocking plate (500).

4. The multiple unit seed meter according to claim 3, wherein, The shell (100) is provided with a brush (130) in contact with the surface of the roller core (310); the brush (130) and the material blocking plate (500) are located on the two sides of the upper half of the roller core (310) respectively.

5. The composite seed meter of claim 3, wherein, The material blocking plate (500) is hingedly connected to the movable cover (200), the movable cover (200) is provided with a top limiting block (210) located above the material blocking plate (500), a cross pin (220) is transversely inserted into the movable cover (200), the cross pin (220) is located below the material blocking plate (500) and is used for supporting the material blocking plate (500) so that the material blocking plate (500) is opened to block the seeds.

6. The composite seed meter of claim 1, wherein, The outer peripheral wall of the roller core (310) is provided with a ring cutting groove (312) which is communicated with the seed arranging groove (311); the shell (100) or the movable cover (200) is provided with a seed cleaning knife (600) which is partially embedded in the ring cutting groove (312) to push away the seeds staying in the seed arranging groove (311).

7. The multiple unit seed meter according to claim 6, wherein, The movable cover (200) is provided with a mounting block (230) which is provided with a slot (231) with a through hole (232) in the side wall; the seed cleaning knife (600) is embedded in the slot (231) and is provided with a mounting hole (610) corresponding to the through hole (232); the mounting hole (610) is aligned with the through hole (232) and is provided with a fastener.

8. The composite seed meter of claim 1, wherein, The back side of the two mounting plates (140) is provided with an extended positioning cylinder (141) which is surrounded by the edge of the rotating hole (113); the peripheral wall of the centering protrusion (322) which protrudes from the extended positioning cylinder (141) is provided with a clamping groove (324) which is embedded with a retaining ring (325); the retaining ring (325) and the centering protrusion (322) are clamped with an adjusting pad (340) in front.

Images