Seeder and sowing method thereof, and agricultural machinery with seeder

Abstract

The present invention discloses a seeder and a sowing method thereof, and an agricultural machine with a seeder, wherein the seeder includes a screening element and a seed taking element. The screening element has a waste discharge channel and a sowing channel, the waste discharge channel of the screening element has a connected state and a closed state, and the waste discharge channel of the screening element is configured to be switchable between the connected state and the closed state. The seed taking element has a plurality of retaining openings, wherein the seed taking element is configured to be rotatable relative to the screening element so that the retaining opening of the seed taking element can be connected to the waste discharge channel or the sowing channel of the screening element.

Description

Technical Field

[0001] The invention relates to the field of sowing, in particular to a seeder and a sowing method thereof, and agricultural machinery with the seeder. Background Art

[0002] In recent years, the large-scale termination has led to the rapid development of agricultural machinery, and a large number of different types of agricultural machinery have been promoted and applied. For example, agricultural machinery for sowing has been widely used, which has greatly improved the sowing efficiency. For agricultural machinery used for sowing, its core mechanism is the seeder (seeder), and its main function is to take seeds from the seed bin for subsequent sowing operations. Existing seeders include mechanical seeders, pneumatic seeders, air-blowing seeders, and air-suction seeders. Mechanical seeders are not suitable for high-speed operations, have poor adaptability to seeds, and have a high seed breakage rate. Pneumatic seeders are mainly used for spot sowing of crops such as corn, soybeans, and sorghum. Although they can solve the problem of seed damage that is easily caused during the seed unloading process and have the advantages of reducing the height of seeding, reducing the bounce of seeds after landing, and improving the uniformity of seed spacing and the qualified rate of seed spacing, the pressure in the air pressure chamber is transmitted by wind through the power transmission shaft, so the power consumption is relatively large. Air-blown seeders are mainly used for sowing economic crops with large seeds such as corn and soybeans, or pelletized beet seeds. Although they have the advantages of (1) good seed filling performance for seeds of different shapes and geometric sizes, (2) seeds are filled, carried, and removed under airflow, and (3) the seed damage rate is low, and the seeding operation can be completed at a higher operating speed (for example, 8 km / h), their defects are: (1) air-blown seeders usually complete seeding operations under the action of high-pressure airflow, and the high-pressure airflow is usually generated by the output power of the tractor or the independent power output to drive the fan to rotate, which consumes a lot of power; (2) the airflow pressure needs to be adjusted when sowing different crop seeds. If the airflow pressure is insufficient, the excess crop seeds cannot be completely removed, resulting in re-seeding. On the contrary, if the airflow pressure is too high, all the seeds in the mold hole will be blown away, resulting in cavitation. Therefore, the machine is required to have a more precise airflow pressure control device; (3) the processing and manufacturing of the seed tray of the air-blown seeder is relatively complicated compared to the socket wheel. Pneumatic seeders are mainly used for sowing crops such as corn, soybeans, and sorghum. Although they have the advantages of not requiring strict sizes and shapes of seeds, not having to strictly grade seeds by size, low seed damage rate, and increased sowing speed, they require a power output shaft to drive the fan to generate negative pressure. The negative pressure chamber generally has to reach 0.003MPa, and their transmission structure is complex and has relatively high requirements for the air tightness of the vacuum chamber. Summary of the invention

[0003] An object of the present invention is to provide a seeder and a sowing method thereof, and an agricultural machine with the seeder, wherein the seeder can effectively remove waste seeds to ensure the sowing effect.

[0004] An object of the present invention is to provide a seeder and a sowing method thereof, and an agricultural machine with the seeder, wherein the seeder can accurately take seeds to reduce the reseeding rate.

[0005] An object of the present invention is to provide a seeder and a sowing method thereof, and an agricultural machine with a seeder, wherein the seeder can effectively ensure the plant spacing to ensure the sowing efficiency.

[0006] One object of the present invention is to provide a seeder and a sowing method thereof, as well as an agricultural machinery with a seeder, wherein the seeder provides a screening element and a seed taking element, and by allowing the seed taking element to rotate relative to the screening element, the seeder can remove waste seeds and reduce the reseeding rate, thereby making the structure of the seeder simple and reliable, thereby reducing the failure rate of the seeder.

[0007] One object of the present invention is to provide a seeder and a sowing method thereof, as well as an agricultural machinery with a seeder, wherein the screening element and the seed taking element are both arranged in a disc shape, and the rotating axis of the seed taking element passes through the middle of the screening element, so that the structure of the seeder is compact, which is conducive to the miniaturization of the seeder.

[0008] An object of the present invention is to provide a seeder and a sowing method thereof, as well as an agricultural machine with a seeder, wherein the seed taking element is replaceable, so that the seeder can sow seeds of different crops by allowing the seed taking element to be replaced.

[0009] One object of the present invention is to provide a seeder and a sowing method thereof, as well as an agricultural machine with a seeder, wherein the seeds entering the maintained opening of the seed-taking element can be discharged through the waste discharge channel of the screening element or sown through the sowing channel of the screening element based on gravity, thereby making the structure of the seeder simple and reliable, thereby reducing the failure rate of the seeder and reducing the power consumption of the seeder.

[0010] One object of the present invention is to provide a seeder and a sowing method thereof, as well as an agricultural machine with a seeder, wherein the seeder provides a seed screening brush, which is used to brush off excess seeds entering the retaining opening of the seed taking element to achieve accurate seed taking.

[0011] One object of the present invention is to provide a seeder and a sowing method thereof, and agricultural machinery with a seeder, wherein the seeder provides a camera element, and the image captured by the camera element can detect whether the seeds entering the retaining opening of the seed taking element are suitable for sowing. If the seeds entering the retaining opening of the seed taking element are waste seeds, the waste seeds can be discharged through the waste discharge channel of the screening element. If the seeds entering the retaining element of the seed taking element are suitable for sowing, the seeds can be sown through the sowing channel of the screening element.

[0012] According to one aspect of the present invention, the present invention provides a seeder, comprising:

[0013] A screening element, wherein the screening element has a waste discharge channel and a seeding channel, the waste discharge channel of the screening element has a connected state and a closed state, and the waste discharge channel of the screening element is configured to be switchable between the connected state and the closed state; and

[0014] A seed taking element, wherein the seed taking element has a plurality of retaining openings, wherein the seed taking element is configured to be rotatable relative to the screening element so that the retaining openings of the seed taking element can be connected to the waste discharge channel or the sowing channel of the screening element, wherein when the retaining openings of the seed taking element are connected to the waste discharge channel of the screening element in a connected state, the seeds retained in the retaining openings of the seed taking element are discharged through the waste discharge channel of the screening element, and when the retaining openings of the seed taking element are connected to the sowing channel of the screening element, the seeds retained in the retaining openings of the seed taking element are sown through the sowing channel of the screening element.

[0015] According to one embodiment of the present invention, the screening element and the seed taking element are both disc-shaped, wherein the waste discharge channel and the seeding channel of the screening element are both arranged on the outside of the screening element in a manner of penetrating the opposite sides of the screening element, wherein the multiple retaining openings of the seed taking element are arranged on the outside of the seed taking element in a manner of being spaced apart from each other and penetrating the opposite sides of the seed taking element, wherein the rotating axis of the seed taking element passes through the middle part of the screening element, so that when the seed taking element is driven to rotate relative to the screening element, the retaining openings of the seed taking element can be connected to the waste discharge channel or the seeding channel of the screening element.

[0016] According to one embodiment of the present invention, the waste discharge channel of the screening element is adjacent to the sowing channel, and the waste discharge channel is located at the front side of the sowing channel.

[0017] According to one embodiment of the present invention, the screening element and the seed taking element are arranged to be inclined relative to the ground, and the screening element is located at the lower side of the seed taking element, thereby allowing the seeds held in the retaining opening of the seed taking element to automatically enter the waste discharge channel or the sowing channel of the screening element based on the principle of gravity.

[0018] According to one embodiment of the present invention, the screening element and the seed taking element are arranged to be inclined relative to the ground, and the screening element is located at the lower side of the seed taking element, thereby allowing the seeds held in the retaining opening of the seed taking element to automatically enter the waste discharge channel or the sowing channel of the screening element based on the principle of gravity.

[0019] According to one embodiment of the present invention, the seeder further includes a seed taking shell, the seed taking shell having a seed taking space and a seed taking opening connected to the seed taking space, wherein the lower portion of the screening element and the lower portion of the seed taking element extend to and are retained in the seed taking space of the seed taking shell through the seed taking opening of the seed taking shell, and the shape of the inner wall of the seed taking shell for forming the seed taking space matches the shape of the seed taking element.

[0020] According to one embodiment of the present invention, the seeder further includes a seed screening brush, which includes a brush head, and the brush head is arranged to be attached to the outer side of the seed taking element in a manner that the relative positions of the brush head and the screening element remain unchanged, and the brush head corresponds to the retaining opening of the seed taking element.

[0021] According to one embodiment of the present invention, the brush head is arranged on the front side of the waste discharge channel of the screening element, and at least a portion of the brush head is held in the seed removal space of the seed removal shell in such a manner that the brush head is close to the seed removal opening of the seed removal shell.

[0022] According to one embodiment of the present invention, the seed removing element is detachable to allow the seed removing element to be replaceable.

[0023] According to one embodiment of the present invention, the seeder further includes a control element and a camera element connected to the control element, the camera element is arranged to face the seed taking element, and the control element is arranged to control the waste discharge channel of the screening element to switch between the connected state and the closed state according to the image taken by the camera element.

[0024] According to one embodiment of the present invention, the seeder further includes a control element and a camera element connected to the control element, the camera element is arranged to face the seed taking element, and the control element is arranged to control the rotation speed of the seed taking element according to the image taken by the camera element.

[0025] According to an embodiment of the present invention, the control element is configured to control the rotation speed of the seeding element according to the image captured by the imaging element.

[0026] According to another aspect of the present invention, the present invention further provides an agricultural machine with a seeder, which comprises a machine body and a seeder disposed on the machine body, wherein the seeder comprises:

[0027] A screening element, wherein the screening element has a waste discharge channel and a seeding channel, the waste discharge channel of the screening element has a connected state and a closed state, and the waste discharge channel of the screening element is configured to be switchable between the connected state and the closed state; and

[0028] A seed taking element, wherein the seed taking element has a plurality of retaining openings, wherein the seed taking element is configured to be rotatable relative to the screening element so that the retaining openings of the seed taking element can be connected to the waste discharge channel or the sowing channel of the screening element, wherein when the retaining openings of the seed taking element are connected to the waste discharge channel of the screening element in a connected state, the seeds retained in the retaining openings of the seed taking element are discharged through the waste discharge channel of the screening element, and when the retaining openings of the seed taking element are connected to the sowing channel of the screening element, the seeds retained in the retaining openings of the seed taking element are sown through the sowing channel of the screening element.

[0029] According to another aspect of the present invention, the present invention further provides a sowing method of a seeder, wherein the sowing method comprises the following steps:

[0030] (a) allowing a seeding element to move relative to a screening element;

[0031] (b) detecting a state where the seed taking element is kept open; and

[0032] (c) If the seeds held in the holding opening of the seed taking element are not suitable for sowing, a waste discharge channel of the screening element is allowed to switch from a closed state to a connected state, so that when the holding opening of the seed taking element corresponds to and is connected to the waste discharge channel of the screening element in the connected state, the seeds that are not suitable for sowing are discharged through the waste discharge channel of the screening element. Correspondingly, if the seeds held in the holding opening of the seed taking element are suitable for sowing, the screening element is allowed to remain in the closed state, so that when the holding opening of the seed taking element corresponds to and is connected to a sowing channel of the screening element, the seeds that are suitable for sowing are sown through the sowing channel of the screening element.

[0033] According to one embodiment of the present invention, in the step (c), after the seeds unsuitable for sowing are discharged through the waste discharge channel of the screening element, the speed of the seed taking element relative to the screening element is increased.

[0034] According to one embodiment of the present invention, the sowing method further comprises the step of: (d) if no seeds are present in the holding opening of the seed taking element, increasing the speed of the seed taking element relative to the screening element.

[0035] According to one embodiment of the present invention, in the step (b), whether the seeds held in the holding opening of the seed taking element are suitable for sowing is detected by taking an image of the holding opening of the seed taking element with an imaging element.

[0036] According to one embodiment of the present invention, in the step (b), the image of the retaining opening of the seed removing element is captured by a camera element to detect whether there is a seed in the retaining opening of the seed removing element.

[0037] According to one embodiment of the present invention, in the step (a), the seed taking element and the screening element are both in the shape of a disc, wherein the seed taking element is allowed to rotate relative to the screening element.

[0038] According to one embodiment of the present invention, in the above method, the screening element and the seed taking element are tilted relative to the ground in such a way that the screening element is located below the side of the seed taking element, thereby allowing the seeds held in the retaining opening of the seed taking element to automatically enter the waste discharge channel or the sowing channel of the screening element based on the principle of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1A It is a three-dimensional schematic diagram from one viewing angle of a seeder according to a preferred embodiment of the present invention.

[0040] Figure 1B It is a three-dimensional schematic diagram of the seeder from another viewing angle according to the above preferred embodiment of the present invention.

[0041] Figure 2 It is a front view schematic diagram of the seeder according to the above preferred embodiment of the present invention.

[0042] Figure 3 It is a schematic diagram of the exploded view of the seeder according to the above preferred embodiment of the present invention.

[0043] Figure 4 It is along Figure 1A Schematic diagram of the internal structure after being cut along the AA line.

[0044] Figure 5A It is a schematic diagram of one of the application states of the seeder according to the above preferred embodiment of the present invention.

[0045] Figure 5B It is a schematic diagram of the second application state of the seeder according to the above preferred embodiment of the present invention.

[0046] Figure 5C It is a schematic diagram of the third application state of the seeder according to the above preferred embodiment of the present invention.

[0047] Figure 5D It is a schematic diagram of the fourth application state of the seeder according to the above preferred embodiment of the present invention.

[0048] Figure 5E It is a schematic diagram of the fifth application state of the seeder according to the above preferred embodiment of the present invention.

[0049] Fig. 5F It is a schematic diagram of the sixth application state of the seeder according to the above preferred embodiment of the present invention.

[0050] Figure 6 It is a three-dimensional schematic diagram of an agricultural machine with a seeder according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0052] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0053] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0054] With reference to the accompanying drawings of the present invention Figures 1A to 5F A seeder 100 according to a preferred embodiment of the present invention will be disclosed and explained in the following description, wherein the seeder 100 includes a screening element 10 and a seed taking element 20, and the seed taking element 20 is configured to be able to move relative to the screening element 10 to allow the screening element 10 and the seed taking element 20 to cooperate with each other to achieve sowing.

[0055] Specifically, the screening element 10 has a waste discharge channel 11 and a sowing channel 12, wherein the waste discharge channel 11 of the screening element 10 has a connected state and a closed state, and the waste discharge channel 11 of the screening element 10 is configured to be switchable between the connected state and the closed state. The seed taking element 20 has a plurality of retaining openings 21, wherein the seed taking element 20 is configured to be able to rotate relative to the screening element 10, so that the retaining openings 21 of the seed taking element 20 can be connected to the waste discharge channel 11 or the sowing channel 12 of the screening element 10. When the retaining opening 21 of the seed taking element 20 corresponds to and is connected to the waste discharge channel 11 of the screening element 10 in the connected state, the seeds retained in the retaining opening 21 of the seed taking element 20 can be discharged through the waste discharge channel 11 of the screening element 10; when the retaining opening 21 of the seed taking element 20 is connected to the sowing channel 12 of the screening element 10, the seeds retained in the retaining opening 21 of the seed taking element 20 can be sown through the sowing channel 12 of the screening element 10.

[0056] It is worth mentioning that in a preferred example of the seeder 100 of the present invention, the seeds held in the holding opening 21 of the seed taking element 20 can be discharged directly to the ground through the waste discharge channel 11 of the screening element 10. In another preferred example of the seeder 100 of the present invention, the seeds held in the holding opening 21 of the seed taking element 20 can be discharged through the waste discharge channel 11 of the screening element 10 in a recycled manner.

[0057] In the attached Figures 1A to 5F In the specific example of the seeder 100 shown, the screening element 10 and the seed taking element 20 are both disc-shaped, wherein the waste discharge channel 11 and the seeding channel 12 of the screening element 10 are both arranged on the outside of the screening element 10 in a manner of penetrating the opposite sides of the screening element 10, wherein the plurality of retaining openings 21 of the seed taking element 20 are arranged on the outside of the seed taking element 20 in a manner of being spaced apart from each other and penetrating the opposite sides of the seed taking element 20. The seed taking element 20 takes the central axis of the seed taking element 20 as the rotation axis, and the rotation axis of the seed taking element 20 passes through the middle of the screening element 10, so that when the seed taking element 20 is driven to rotate relative to the screening element 10, the retaining openings 21 of the seed taking element 20 can be connected to the waste discharge channel 11 or the seeding channel 12 of the screening element 10. Preferably, the retaining openings 21 of the seed taking element 20 are arranged around the periphery of the seed taking element 20.

[0058] It is worth mentioning that the size and number of the retaining openings 21 of the seed taking element 20 are related to the type of seeds. It should be understood that different types of seeds have different planting methods. For some seeds, it is suitable to be used individually, while for other seeds, it is suitable to be planted in a concentrated manner. Therefore, the size and number of the retaining openings 21 of the seed taking element 20 are designed according to the type of seeds to meet the needs of the type of seeds.

[0059] Preferably, the waste discharge channel 11 and the sowing channel 12 of the screening element 10 are adjacent, and the waste discharge channel 11 is located on the front side of the sowing channel 12, so that when the seeds are held in the retaining opening 21 of the seed taking element 20 and the seed taking element 20 is driven to rotate relative to the screening element 10, the retaining opening 21 of the seed taking element 20 holding the seeds can pass through the positions corresponding to the waste discharge channel 11 and the sowing channel 12 of the screening element 10 in sequence. Before the seed taking element 20 is driven to rotate relative to the screening element 10 so that one of the retaining openings 21 of the seed taking element 20 passes through the waste discharge channel 11 of the screening element 10, the state of the retaining opening 21 of the seed taking element 20 is detected, wherein if the detection result indicates that the seeds retained in the retaining opening 21 of the seed taking element 20 are not suitable for sowing, the waste discharge channel 11 of the screening element 10 is switched from the closed state to the connected state, so that after the retaining opening 21 of the seed taking element 20 corresponds to and is connected to the waste discharge channel 11 of the screening element 10, the waste discharge channel 11 of the screening element 10 is retained. The seeds that are unsuitable for sowing in the retaining opening 21 of the seed taking element 20 are excluded through the waste discharge channel 11 of the screening element 10. Accordingly, if the detection result shows that the seeds retained in the retaining opening 21 of the seed taking element 20 are suitable for sowing, the waste discharge channel 11 of the screening element 10 is maintained in the closed state, and when the retaining opening 21 of the seed taking element 20 corresponds to and is connected to the sowing channel 12 of the screening element 10, the seeds suitable for sowing retained in the retaining opening 21 of the seed taking element 20 are sown through the sowing channel 12 of the screening element 10.

[0060] Continue to refer to the attached Figures 1A to 5FIn this specific example of the seeder 100 of the present invention, the screening element 10 and the seed taking element 20 are arranged to be inclined relative to the ground, and the screening element 10 is located below the side of the seed taking element 20 so that the side of the screening element 10 can close the lower opening of the retaining opening 21 of the seed taking element 20. When the seed taking element 20 is driven to rotate relative to the screening element 10, based on the principle of gravity, the seeds can be reliably retained in the retaining opening 21 of the seed taking element 20. When the retaining opening 21 of the seed taking element 20 retaining the seeds rotates to a position corresponding to the waste discharge channel 11 of the screening element 10, if the waste discharge channel 11 of the screening element 10 is in the connected state, the seeds retained in the retaining opening 21 of the seed taking element 20 can automatically pass through the retaining opening 21 of the screening element 10 based on the principle of gravity. The seeds are eliminated by the waste discharge channel 11; if the waste discharge channel 11 of the screening element 10 is in the closed state, the seeds held in the retaining opening 21 of the seed taking element 20 continue to move with the rotation of the seed taking element 20, so that subsequently, when the retaining opening 21 of the seed taking element 20 corresponds to and is connected to the sowing channel 12 of the screening element 10, the seeds held in the retaining opening 21 of the seed taking element 20 can automatically pass through the sowing channel 12 of the screening element 10 based on the principle of gravity and be sown.

[0061] It is worth mentioning that the angle at which the screening element 10 and the seed taking element 20 are arranged to be inclined relative to the ground is not limited in the seeder 100 of the present invention.

[0062] Continue to refer to the attached Figures 1A to 5FThe seeder 100 of the present invention further includes a seed taking shell 30, wherein the seed taking shell 30 has a seed taking space 31 and a seed taking opening 32 connected to the seed taking space 31, wherein the lower part of the screening element 10 and the lower part of the seed taking element 20 extend to and are retained in the seed taking space 31 of the seed taking shell 30 through the seed taking opening 32 of the seed taking shell 30, and the shape of the inner wall of the seed taking shell 30 for forming the seed taking space 31 matches the shape of the seed taking element 20. For example, if the seed taking element 20 is a disc, the inner wall of the seed taking shell 30 used to form the seed taking space 31 is an arc surface, and the radius of the inner wall of the seed taking shell 30 used to form the seed taking space 31 is slightly larger than the radius of the outer wall of the seed taking element 20, so that when the seed taking element 20 is driven, it can be rotated relative to the screening element 10 in the seed taking space 31 of the seed taking shell 30 while avoiding the formation of a large gap between the outer wall of the seed taking element 20 and the inner wall of the seed taking shell 30 used to form the seed taking space 31. When sowing with the seeder 100, some seeds are allowed to fall into the seed taking space 31 of the seed taking shell 30 through the seed taking opening 32 of the seed taking shell 30, and these seeds are kept between the seed taking shell 30 and the seed taking element 20. Since the seed taking element 20 is inclined relative to the ground, when the seed taking element 20 is driven to rotate relative to the screening element 10 in the seed taking space 31 of the seed taking shell 30, the seeds will automatically enter the retaining opening 21 of the seed taking element 20 and be taken out.

[0063] It is worth mentioning that whether the seed shell 30 is tilted is not limited in the seeder 100 of the present invention. Figures 1A to 5F In a specific example of the seeder 100 shown, the seed shell 30 is inclined relative to the ground, and the angle at which the seed shell 30 is inclined relative to the ground is consistent with the angle at which the screening element 10 and the seed element 20 are inclined relative to the ground.

[0064] Continue to refer to the attached Figures 1A to 5FThe seeder 100 of the present invention further includes a seed screening brush 40, wherein the seed screening brush 40 includes a brush head 41, and the brush head 41 is arranged to be attached to the outer side of the seed taking element 20 in a manner that the relative positions of the brush head 41 and the screening element 10 remain unchanged, and the brush head 41 corresponds to the retaining opening 21 of the seed taking element 20. When the seed taking element 20 is driven to rotate relative to the screening element 10 in the seed taking space 31 of the seed taking shell 30, and when the size of the retaining opening 21 of the seed taking element 20 matches the size of a seed, if more than two seeds enter the retaining opening 21 of the seed taking element 20 at the same time, it will inevitably cause a portion of at least one seed to protrude from the side of the seed taking element 20. At this time, when the seed taking element 20 rotates to allow the brush head 41 to correspond to the retaining opening 21 retaining more than two seeds, the brush head 41 can brush the seeds protruding from the side of the seed taking element 20 from the retaining opening 21 of the seed taking element 20, so that at most one seed is retained in the retaining opening 21 of the seed taking element 20, thereby achieving accurate seed removal and reducing the reseeding rate.

[0065] Preferably, the brush head 41 is arranged on the front side of the waste discharge channel 11 of the screening element 10, and at least a part of the brush head 41 is held in the seed taking space 31 of the seed taking shell 30 in such a way that the brush head 41 is close to the seed taking opening 32 of the seed taking shell 30, thereby ensuring that the seeds brushed off from the retaining opening 21 of the seed taking element 20 fall into the seed taking space 31 of the seed taking shell 30 to avoid waste.

[0066] Furthermore, the seed screening brush 40 includes a mounting rod 42, wherein one end of the mounting rod 42 is mounted on the screening element 10 after passing through the middle of the seed taking element 20, and the brush head 41 is arranged at the other end of the mounting rod 42, so that the brush head 41 is attached to the outer side of the seed taking element 20 by means of the mounting rod 42 in a manner that the relative positions of the brush head 41 and the screening element 10 remain unchanged, and the brush head 41 corresponds to the retaining opening 21 of the seed taking element 20.

[0067] Optionally, in a specific example of the seeder 100 of the present invention, the brush head 41 is detachably mounted on the end of the mounting rod 42, so that the brush head 41 can be replaced after the brush head 41 is worn to ensure the reliability of the seeder 100. Optionally, in another specific example of the seeder 100 of the present invention, the mounting rod 42 is detachably mounted on the screening element 10, so that the seed screening brush 40 can be replaced after the brush head 41 is worn to ensure the reliability of the seeder 100.

[0068] Preferably, in the seeder 100 of the present invention, the seed taking element 20 is detachable to allow the seed taking element 20 to be replaceable, so that the seeder 100 can be suitable for sowing seeds of different crops by replacing the seed taking element 20. It is worth mentioning that the sizes of seeds of different crops are different. In order to ensure that the seed taking element 20 can accurately take seeds and reduce the reseeding rate, the size of the retaining opening 21 of the seed taking element 20 needs to match the size of the seeds. For example, the difference between mung bean seeds and peanut seeds is relatively large. Therefore, the size of the retaining opening 21 of one of the seed taking elements 20 can match the size of mung bean seeds to make the seed taking element 20 form a mung bean seed taking element, and the size of the retaining opening 21 of another of the seed taking elements 20 can match the size of peanut seeds to make the seed taking element 20 form a peanut seed taking element. If it is necessary to sow mung bean seeds, the mung bean seed taking element is installed so that the mung bean seed taking element and the screening element 10 cooperate with each other to sow the mung bean seeds. Correspondingly, if it is necessary to sow peanut seeds, the peanut seed taking element is installed so that the peanut seed taking element and the screening element 10 cooperate with each other to sow the peanut seeds.

[0069] Continue to refer to the attached Figures 1A to 5F The seeder 100 further includes a control element 50 and a camera element 60 connected to the control element 50, wherein the camera element 60 is arranged toward the seed taking element 20, and the control element 50 is used to control the waste discharge channel 11 of the screening element 10 to switch between the connected state and the closed state according to the image captured by the camera element 60. Figures 1A to 5FIn the specific example of the seeder 100 shown, the seeder 100 further includes a valve 70, the valve 70 includes a solenoid valve 71 and a door element 72 drivably connected to the solenoid valve 71, wherein the solenoid valve 71 is controllably connected to the control element 50, and the control element 50 can control the door element 72 to close or open the waste discharge channel 11 of the screening element 10 through the solenoid valve 71. Preferably, the door element 72 is configured to be able to close or open the waste discharge channel 11 of the screening element 10 on the inner side of the screening element 10 (the side of the screening element 10 facing the seed taking element 20), so that the seeds held in the holding opening 21 of the seed taking element 20 can be prevented from falling into the waste discharge channel 11 of the screening element 10 in the closed state based on the principle of gravity. It can be understood that when the control element 50 prevents electrical energy from being supplied to the solenoid valve 71, the solenoid valve 71 causes the door element 72 to be maintained in the position of closing the waste channel 11 of the screening element 10, so that the waste channel 11 of the screening element 10 is in the closed state. Correspondingly, when the control element 50 allows electrical energy to be supplied to the solenoid valve 71, the solenoid valve 71 changes the position of the door element 72 to open the waste channel 11 of the screening element 10, so that the waste channel 11 of the screening element 10 is in the connected state.

[0070] In a preferred example of the seeder 100 of the present invention, after the seed taking element 20 takes seeds in the seed taking space 31 of the seed taking shell 30, and the holding opening 21 of the seed taking element 20 for holding seeds rotates from the lower side of the brush head 41 of the seed screening brush 40 to the upper side, the imaging element 60 is configured to capture an image of the seed taking element 20 to detect the state of the holding opening 21 of the seed taking element 20, at which time the holding opening 21 of the seed taking element 20 has four states: no seed state, waste seed state, multiple states, and good seed state. In addition, through the images captured by the imaging element 60, the number of seeds sown and the number of seeds recovered can be accurately counted for easy statistics.

[0071] Specifically, if it is determined based on the image captured by the imaging element 60 that no seeds exist in the holding opening 21 of the seed taking element 20, the holding opening 21 of the seed taking element 20 is in a seedless state.

[0072] If it is determined based on the image taken by the camera element 60 that the seeds have gaps, poor fullness, etc., which makes them unsuitable for sowing, the retaining opening 21 of the seed taking element 20 is in a waste seed state. At this time, the control element 50 drives the door element 72 to change its position through the solenoid valve 71 to open the waste discharge channel 11 of the screening element 10, so that the waste discharge channel 11 of the screening element 10 is switched from the closed state to the connected state. In this way, when the seed taking element 20 is rotated so that the retaining opening 21 of the seed taking element 20 in the waste seed state corresponds to and is connected to the waste discharge channel 11 of the screening element 10 in the connected state, the seeds that are unsuitable for sowing and are retained in the retaining opening 21 of the seed taking element 20 are automatically discharged through the waste discharge channel 11 of the screening element 10 based on the principle of gravity, thereby ensuring the sowing effect of the seeder 100.

[0073] If it is determined based on the image captured by the imaging element 60 that more than two seeds are retained in the retaining opening 21 of the seed-removing element 20, the retaining opening 21 of the seed-removing element 20 is in multiple states. At this time, the control element 50 drives the door element 72 to change its position through the solenoid valve 71 to open the waste discharge channel 11 of the screening element 10 so that the waste discharge channel 11 of the screening element 10 is switched from the closed state to the connected state. In this way, when the seed-removing element 20 is rotated so that the retaining opening 21 of the seed-removing element 20 in multiple states corresponds to and is connected to the waste discharge channel 11 of the screening element 10 in the connected state, the two or more seeds retained in the retaining opening 21 of the seed-removing element 20 are automatically discharged through the waste discharge channel 11 of the screening element 10 based on the principle of gravity, thereby reducing the reseeding rate.

[0074] If it is determined based on the image captured by the imaging element 60 that the seeds have no gaps and are well-filled, making the seeds suitable for sowing, then the retaining opening 21 of the seed-taking element 20 is in a good seed state. At this time, the control element 50 prevents electric energy from being provided to the solenoid valve 71 so that the door element 72 is maintained in a position to close the waste discharge channel 11 of the screening element 10, so that the waste discharge channel 11 of the screening element 10 is in the closed state, so as to avoid the seed-taking element 20 rotating to a position where the retaining opening 21 of the seed-taking element 20 in a good seed state corresponds to and is connected to the screening element. When the waste discharge channel 11 of 10 is in the closed state, the seeds suitable for sowing held in the retaining opening 21 of the seed taking element 20 are automatically discharged through the waste discharge channel 11 of the screening element 10 based on the principle of gravity, and when the seed taking element 20 is rotated so that the retaining opening 21 of the seed taking element 20 in the optimal seed state corresponds to and is connected to the sowing channel 12 of the screening element 10, the seeds suitable for sowing held in the retaining opening 21 of the seed taking element 20 are automatically sown through the sowing channel 12 of the screening element 10 based on the principle of gravity.

[0075] Furthermore, in a preferred example of the seeder 100 of the present invention, the control element 50 is configured to control the rotation speed of the seed taking element 20 according to the image captured by the camera element 60. For example, the drive motor for driving the seed taking element 20 is controllably connected to the control element 50, so that the control element 50 can control the rotation of the seed taking element 20 by controlling the rotation speed of the drive motor, so as to facilitate ensuring the plant spacing.

[0076] Attached FIG. 5A to FIG. 5F The application state of the seeder 100 of the present invention is shown.

[0077] Reference Figure 5A , some seeds are allowed to fall into the seed taking space 31 of the seed taking shell 30 through the seed taking opening 32 of the seed taking shell 30, and these seeds are retained between the seed taking shell 30 and the seed taking element 20. Since the seed taking element 20 is inclined relative to the ground, when the seed taking element 20 is driven to rotate relative to the screening element 10 in the seed taking space 31 of the seed taking shell 30, the seeds will automatically enter the retaining opening 21 of the seed taking element 20 and be taken out.

[0078] Reference Figure 5BIn the seed taking space 31 of the seed taking shell 30, more than two seeds may enter the retaining opening 21 of the seed taking element 20 at the same time. As the seed taking element 20 rotates to allow the brush head 41 to correspond to the retaining opening 21 retaining more than two seeds, the brush head 41 can brush the seeds protruding from the side of the seed taking element 20 from the retaining opening 21 of the seed taking element 20, so that at most one seed is retained in the retaining opening 21 of the seed taking element 20.

[0079] For ease of description and understanding, the retaining openings 21 of the seed-taking element 20 located on the upper side of the brush head 41 are defined as a first retaining opening 211, a second retaining opening 212, a third retaining opening 213, and a fourth retaining opening 214 in sequence, wherein the first retaining opening 211, the second retaining opening 212, the third retaining opening 213, and the fourth retaining opening 214 are all the same in size and shape, and the only difference is the position of the retaining openings 21. There is a seed with a gap in the first retaining opening 211 of the seed-taking element 20, no seed in the second retaining opening 212 of the seed-taking element 20, two seeds in the third retaining opening 213 of the seed-taking element 20, and a full seed in the fourth retaining opening 214 of the seed-taking element 20.

[0080] Reference Figure 5C The imaging element 60 captures the state of the first retaining opening 211 of the seed taking element 20, and the control element 50 can detect that the seeds present in the first retaining opening 211 of the seed taking element 20 are not suitable for sowing based on the image captured by the imaging element 60, and judge that the first retaining opening 211 of the seed taking element 20 is in a waste seed state. The control element 50 allows power to be supplied to the solenoid valve 71, and the solenoid valve 71 drives the door element 72 to change its position to open the waste channel 11 of the screening element 10, so that the waste channel 11 of the screening element 10 is switched from the closed state to the connected state. In this way, when the seed taking element 20 is rotated so that the first retaining opening 211 of the seed taking element 20 corresponds to and is connected to the waste channel 11 of the screening element 10 in the connected state, the seeds that are unsuitable for sowing and are retained in the retaining opening 21 of the seed taking element 20 are automatically discharged through the waste channel 11 of the screening element 10 based on the principle of gravity. Subsequently, the control element 50 prevents power from being supplied to the solenoid valve 71, so that the door element 72 closes the waste channel 11 of the screening element 10 again.

[0081] Reference Figure 5DThe imaging element 60 captures the state of the second holding opening 212 of the seed taking element 20, and the control element 50 can detect that no seeds exist in the second holding opening 212 according to the image captured by the imaging element 60, and judge that the second holding opening 212 of the seed taking element 20 is in a seedless state. The control element 50 prevents the solenoid valve 71 from being powered, so that the door element 72 keeps closing the waste discharge channel 11 of the screening element 10, that is, the waste discharge channel 11 of the screening element 10 is kept in the closed state.

[0082] Reference Figure 5E The imaging element 60 captures the state of the third retaining opening 213 of the seed taking element 20, and the control element 50 can detect whether there are more than two seeds in the third retaining opening 213 of the seed taking element 20 based on the image captured by the imaging element 60, and judge whether the third retaining opening 213 of the seed taking element 20 is in multiple states. The control element 50 allows power to be supplied to the solenoid valve 71, and the solenoid valve 71 drives the door element 72 to change its position to open the waste channel 11 of the screening element 10, so that the waste channel 11 of the screening element 10 is switched from the closed state to the connected state. In this way, when the seed taking element 20 is rotated so that the third retaining opening 213 of the seed taking element 20 corresponds to and is connected to the waste channel 11 of the screening element 10 in the connected state, more than two seeds retained in the retaining opening 21 of the seed taking element 20 are automatically discharged through the waste channel 11 of the screening element 10 based on the principle of gravity. Subsequently, the control element 50 prevents power from being supplied to the solenoid valve 71, so that the door element 72 closes the waste channel 11 of the screening element 10 again.

[0083] Reference Fig. 5F, the imaging element 60 captures the state of the fourth retaining opening 214 of the seed taking element 20, and the control element 50 can detect that the seeds present in the fourth retaining opening 214 of the seed taking element 20 are suitable for sowing based on the image captured by the imaging element 60, and judge that the fourth retaining opening 214 of the seed taking element 20 is in a good seed state. At this time, the control element 50 prevents electric energy from being provided to the solenoid valve 71 so that the door element 72 is maintained in the position of closing the waste discharge channel 11 of the screening element 10, so that the waste discharge channel 11 of the screening element 10 is in the closed state, so as to avoid the seed taking element 20 from rotating to the position where the seed taking element 20 is in a good seed state. When the fourth retaining opening 214 corresponds to and is connected to the waste discharge channel 11 of the screening element 10 in the closed state, the seeds suitable for sowing held in the fourth retaining opening 214 of the seed taking element 20 are automatically discharged through the waste discharge channel 11 of the screening element 10 based on the principle of gravity, and when the seed taking element 20 is rotated so that the fourth retaining opening 214 of the seed taking element 20 in the optimal seed state corresponds to and is connected to the sowing channel 12 of the screening element 10, the seeds suitable for sowing held in the fourth retaining opening 214 of the seed taking element 20 are automatically sown through the sowing channel 12 of the screening element 10 based on the principle of gravity.

[0084] In addition, the control element 50 is configured to control the rotation speed of the seed taking element 20 according to the image captured by the camera element 60, so as to ensure the plant spacing. For example, if the seeds in the first holding opening 211, the second holding opening 212 and the fourth holding opening 214 of the seed taking element 20 are suitable for sowing, and the seeds in the third holding opening 213 of the seed taking element 20 are not suitable for sowing, then when the seeds that are not suitable for sowing and are held in the third holding opening 213 of the seed taking element 20 are removed through the waste discharge channel 11 of the screening element 10, the rotation speed of the seed taking element 20 can be accelerated to make the seeds from the third holding opening 213 of the seed taking element 20 to be removed. The time consumed from the state of the sowing channel 12 of the screening element 10 corresponding to the second retaining opening 212 to the state of the sowing channel 12 of the screening element 10 corresponding to the fourth retaining opening 214 of the seed taking element 20 is equal to the time consumed from the state of the sowing channel 12 of the screening element 10 corresponding to the first retaining opening 211 of the seed taking element 20 to the state of the sowing channel 12 of the screening element 10 corresponding to the second retaining opening 212 of the seed taking element 20, which is beneficial to ensure the plant spacing.

[0085] According to another aspect of the present invention, the present invention further provides a sowing method of the seeder 100, wherein the sowing method comprises the following steps:

[0086] (a) allowing the seed taking element 20 to move relative to the screening element 10;

[0087] (b) detecting the state of the holding opening 21 of the seed taking element 20; and

[0088] (c) If the seeds held in the holding opening 21 of the seed taking element 20 are not suitable for sowing, the waste discharge channel 11 of the screening element 10 is allowed to switch from the closed state to the connected state, so that when the holding opening 21 of the seed taking element 20 corresponds to and is connected to the waste discharge channel 11 of the screening element 10 in the connected state, the seeds that are not suitable for sowing are discharged through the waste discharge channel 11 of the screening element 10. Correspondingly, if the seeds held in the holding opening 21 of the seed taking element 20 are suitable for sowing, the screening element 10 is allowed to remain in the closed state, so that when the holding opening 21 of the seed taking element 20 corresponds to and is connected to the sowing channel 12 of the screening element 10, the seeds that are suitable for sowing are sown through the sowing channel 12 of the screening element 10.

[0089] Attached Figure 6 An agricultural machine with a seeder according to a preferred embodiment of the present invention is shown, wherein the agricultural machine comprises a machine body 200 and the seeder 100 disposed on the machine body 200, wherein the sowing is completed when the machine body 200 drives the seeder 100 to move. Specifically, the machine body 200 comprises a machine main body 201 and a pin assembly 202 disposed on the machine main body 201, wherein the sowing channel 12 of the screening element 10 of the seeder 100 corresponds to the pin assembly 202. When the machine main body 201 moves and drives the pins of the pin assembly 202 to be intermittently inserted into the soil, the screening element 10 and the seed taking element 20 of the seeder 100 cooperate with each other to allow the seeds to enter the pin assembly 202 from the sowing channel 12 of the screening element 10 to complete the sowing.

[0090] Those skilled in the art will appreciate that the above embodiments are merely examples, wherein features of different embodiments may be combined with each other to obtain implementation methods that are easily conceivable based on the contents disclosed in the present invention but are not explicitly indicated in the drawings.

[0091] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A seeder, characterized in that: include: A screening element, wherein the screening element has a waste discharge channel and a seeding channel, the waste discharge channel of the screening element has a connected state and a closed state, and the waste discharge channel of the screening element is configured to be switchable between the connected state and the closed state; and A seed taking element, wherein the seed taking element has a plurality of retaining openings, wherein the seed taking element is configured to be rotatable relative to the screening element so that the retaining openings of the seed taking element can be connected to the waste discharge channel or the sowing channel of the screening element, wherein when the retaining openings of the seed taking element are connected to the waste discharge channel of the screening element in the connected state, the seeds retained in the retaining openings of the seed taking element are discharged through the waste discharge channel of the screening element, and when the retaining openings of the seed taking element are connected to the sowing channel of the screening element, the seeds retained in the retaining openings of the seed taking element are sown through the sowing channel of the screening element; the retaining openings of the seed taking element are arranged around the seed taking element.

2. The seeder according to claim 1, wherein the screening element and the seed taking element are both disc-shaped, wherein the waste discharge channel and the seeding channel of the screening element are both arranged on the outside of the screening element in a manner of penetrating the opposite sides of the screening element, wherein the multiple retaining openings of the seed taking element are arranged on the outside of the seed taking element in a manner of being spaced apart from each other and penetrating the opposite sides of the seed taking element, wherein the rotating axis of the seed taking element passes through the middle of the screening element, so that when the seed taking element is driven to rotate relative to the screening element, the retaining opening of the seed taking element can be connected to the waste discharge channel or the seeding channel of the screening element.

3. The seeder according to claim 2, wherein the waste discharge channel of the screening element and the sowing channel are adjacent, and the waste discharge channel is located at the front side of the sowing channel.

4. The seeder according to claim 2, wherein the screening element and the seed taking element are arranged to be inclined relative to the ground, and the screening element is located at the lower side of the seed taking element, thereby allowing the seeds held in the retaining opening of the seed taking element to automatically enter the waste discharge channel or the seeding channel of the screening element based on the principle of gravity.

5. The seeder according to claim 3, wherein the screening element and the seed taking element are arranged to be inclined relative to the ground, and the screening element is located at the lower side of the seed taking element, thereby allowing the seeds held in the retaining opening of the seed taking element to automatically enter the waste discharge channel or the sowing channel of the screening element based on the principle of gravity.

6. The seeder according to claim 5 further comprises a seed taking shell, the seed taking shell having a seed taking space and a seed taking opening connected to the seed taking space, wherein the lower part of the screening element and the lower part of the seed taking element extend to and are retained in the seed taking space of the seed taking shell through the seed taking opening of the seed taking shell, and the shape of the inner wall of the seed taking shell for forming the seed taking space matches the shape of the seed taking element.

7. The seeder according to claim 6 further comprises a seed screening brush, the seed screening brush comprising a brush head, the brush head being arranged to be attached to the outer side of the seed taking element in a manner that the relative positions of the brush head and the screening element remain unchanged, and the brush head corresponds to the retaining opening of the seed taking element.

8. The seeder according to claim 7, wherein the brush head is arranged on the front side of the waste discharge channel of the screening element, and at least a portion of the brush head is held in the seed removal space of the seed removal shell in such a manner that the brush head is close to the seed removal opening of the seed removal shell.

9. A planter according to any one of claims 1 to 8, wherein the seed taking element is detachable to allow the seed taking element to be replaced.

10. The seeder according to any one of claims 1 to 8, further comprising a control element and a camera element connected to the control element, the camera element being arranged to face the seed taking element, and the control element being arranged to control the waste discharge channel of the screening element to switch between the connected state and the closed state according to the image taken by the camera element.

11. The seeder according to any one of claims 1 to 8, further comprising a control element and a camera element connected to the control element, the camera element being arranged to face the seed taking element, and the control element being arranged to control the rotation speed of the seed taking element according to the image taken by the camera element.

12. The seed drill according to claim 10, wherein the control element is configured to control a rotation speed of the seed taking element according to an image captured by the imaging element.

13. An agricultural machine with a seeder, characterized in that: include: a mechanical body; and The seeder according to any one of claims 1 to 12, wherein the seeder is arranged on the machine body.

14. A sowing method using a seeder, characterized in that: The sowing method comprises the following steps: (a) allowing a seeding element to move relative to a screening element; (b) detecting a state where the seed taking element is kept open; and (c) If the seeds held in the holding opening of the seed taking element are not suitable for sowing, a waste discharge channel of the screening element is allowed to switch from a closed state to a connected state, so that when the holding opening of the seed taking element corresponds to and is connected to the waste discharge channel of the screening element in the connected state, the seeds that are not suitable for sowing are discharged through the waste discharge channel of the screening element. Correspondingly, if the seeds held in the holding opening of the seed taking element are suitable for sowing, the screening element is allowed to remain in the closed state, so that when the holding opening of the seed taking element corresponds to and is connected to a sowing channel of the screening element, the seeds that are suitable for sowing are sown through the sowing channel of the screening element.

15. The sowing method according to claim 14, wherein in the step (c), after the seeds unsuitable for sowing are discharged through the waste discharge channel of the screening element, the speed of the seed taking element relative to the screening element is increased.

16. The sowing method according to claim 14, further comprising the step of: (d) if no seeds are present in the holding opening of the seed taking element, increasing the speed of the seed taking element relative to the screening element.

17. The sowing method according to claim 14, wherein in the step (b), whether the seeds held in the retaining opening of the seed taking element are suitable for sowing is detected by taking an image of the retaining opening of the seed taking element with a camera element.

18. The sowing method according to claim 16, wherein in the step (b), the image of the retaining opening of the seed taking element is captured by a camera element to detect whether there is a seed in the retaining opening of the seed taking element.

19. The sowing method according to claim 14, wherein in the step (a), the seed taking element and the screening element are both in the shape of a disc, wherein the seed taking element is allowed to rotate relative to the screening element.

20. The sowing method according to claim 19, wherein in the above method, the screening element and the seed taking element are tilted relative to the ground in such a way that the screening element is located below the side of the seed taking element, thereby allowing the seeds held in the retaining opening of the seed taking element to automatically enter the waste discharge channel or the sowing channel of the screening element based on the principle of gravity.

Images