Multi-variety pasture seed no-tillage planter

Abstract

A multi-variety forage grass seed no-tillage planter relates to the technical field of seeding, and comprises a walking device and a plurality of seeding devices, the walking device is used for walking on the ground, the plurality of seeding devices are installed on the walking device, and the plurality of seeding devices are arranged at intervals in the advancing direction of the walking device; each seeding device comprises a drilling mechanism and a seeding mechanism, the drilling mechanism is mounted on the walking device, and a blanking port is formed in the drilling end of the drilling mechanism; and the seeding mechanism is mounted in the drilling mechanism and is used for sending out seeds from the blanking port. The pasture sowing machine can be used for sowing pasture of multiple varieties at the same time, and damage to original pasture can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sowing, in particular to a no-tillage sowing machine for multi-species pasture seeds. BACKGROUND

[0002] The no-tillage sowing machine mainly includes corn sowing machines, soybean sowing machines, garlic sowing machines, and potato sowing machines, etc. It is mainly used to solve the problem of insufficient rural labor force and high labor cost, and to expand the agricultural planting area and the mechanization level. In some scenarios, it is necessary to sow pasture in a place where plants have been sown and covered. Generally, a sowing machine is used to open a trench, and the seeds are placed in the trench.

[0003] The present application relates to the technical field of sowing, in particular to a no-tillage sowing machine for multi-species pasture seeds. The existing no-tillage sowing machine for pasture seeds can only sow one type of pasture seed, and the trench opening method causes great damage to the original pasture. SUMMARY

[0004] The present application relates to the technical field of sowing, in particular to a no-tillage sowing machine for multi-species pasture seeds.

[0005] The embodiments of the present application can be implemented as follows: In a first aspect, the present application provides a no-tillage sowing machine for multi-species pasture seeds, comprising: a walking device for walking on the ground, and a plurality of sowing devices, each of which is installed on the walking device, and the plurality of sowing devices are arranged at intervals in the direction of travel of the walking device; Each of the sowing devices comprises a drilling mechanism and a sowing mechanism, the drilling mechanism is installed on the walking device, and the drilling end of the drilling mechanism is provided with a feeding port; the sowing mechanism is installed inside the drilling mechanism, and the sowing mechanism is used to send seeds out of the feeding port.

[0006] In an optional embodiment, the drilling mechanism comprises a telescopic drive, a rotary drive, and a drill rod, the telescopic drive is installed on the walking device, the rotary drive is installed on the telescopic end of the telescopic drive, and the drill rod is installed on the rotary end of the rotary drive; The telescopic drive is used to drive the rotary drive and the drill rod to rise and fall, the rotary drive is used to drive the drill rod to rotate, and the feeding port is arranged at the front end of the drill rod.

[0007] Based on the above scheme, when drilling is needed, the rotary driver can be started first to drive the drill rod to rotate, and then the telescopic driver can be started to drive the rotating drill rod into the soil layer, and a hole of a certain depth is drilled at a set position in the soil layer. After drilling is completed, the pasture seeds are discharged from the discharge port and fall into the hole to complete seeding.

[0008] In an optional embodiment, the drill rod is internally provided with a seed discharge channel that is in communication with the discharge port; and the drill rod is internally provided with a pressing plate. The seeding mechanism comprises a seeding rod and a force transmission plate, the seeding rod is connected with the rotating end of the rotary driver, and the force transmission plate is connected with the seeding rod; the force transmission plate is slidably connected with the seed discharge channel in the extension direction of the preset axis, and the force transmission plate is relatively fixed with the seed discharge channel in the direction around the preset axis; and the force transmission plate is located above the pressing plate. When the telescopic driver drives the rotary driver to move downward, the force transmission plate can be in contact with the pressing plate to drive the drill rod to move downward, and the seeding rod can close the discharge port; and when the telescopic driver drives the rotary driver to move upward, the seeding rod opens the discharge port.

[0009] Based on the above scheme, during drilling, the telescopic driver drives the rotary driver to descend, and the seeding rod installed on the rotary driver descends together, and the seeding rod can block the discharge port to avoid the entry of external soil and other impurities into the seed discharge channel. At the same time, when the seeding rod descends, the force transmission plate also descends, the force transmission plate contacts the pressing plate to drive the pressing plate to descend together, i.e., to descend with the drill rod. Since the force transmission plate and the drill rod do not rotate relative to each other, when the rotary driver transmits torque to the seeding rod, the force transmission plate can drive the drill rod to rotate, so that the drill rod can descend and rotate to perform drilling. When drilling is completed, the telescopic driver ascends, the seeding rod ascends first, the drill rod remains at the same height, and after relative movement between the two, the discharge port is opened, and the seeds can move to the position where the discharge port is located. As the seeding rod continues to ascend, it can drive the drill rod to ascend, and the seeds can be discharged from the discharge port and fall into the drill hole to achieve seeding.

[0010] It should be understood that the tip of the seeding rod can be a conical surface that protrudes out of the discharge port to improve the sealing performance and reduce the probability of soil and other impurities entering the seed discharge channel.

[0011] In an optional embodiment, the cross-sectional profile of the force transmission plate is non-circular, and the cross-sectional profile of the seed discharge channel is non-circular, so that the force transmission plate and the seed discharge channel are relatively fixed in the circumferential direction of the preset axis.

[0012] Based on the above scheme, the transmission plate and the blanking channel are simple in structure, easy to manufacture, and high in transmission efficiency, and are not easy to be damaged. For example, the transmission plate can be a rectangular plate, and correspondingly, the part of the blanking channel can be a rectangular cavity. The transmission plate and the rectangular cavity cooperate to be able to slide relative to each other and to be able to transmit torque.

[0013] In an optional embodiment, the drill rod is further provided with a limiting plate, the limiting plate is provided with an avoiding through hole, the seeding rod is arranged in the avoiding hole, the transmission plate is located between the pressing plate and the limiting plate, and the transmission plate is used to contact the limiting plate when moving upward to drive the drill rod to move upward.

[0014] Based on the above scheme, by arranging the limiting plate, when the seeding rod moves upward, the seeding rod moves to the position of the limiting plate, and the tension is transmitted to the drill rod through the limiting plate to drive the drill rod to quickly rise.

[0015] In an optional embodiment, the seeding device further comprises an elastic member, the elastic member is sleeved on the outside of the seeding rod, the elastic member passes through the avoiding through hole, and the two ends of the elastic member are connected with the drill rod and the transmission plate respectively, so as to make the drill rod have an upward movement trend to close the blanking opening by the seeding rod.

[0016] Based on the above scheme, the elastic member can be a spring. The elastic member is designed to be in a compressed state, which can provide the elastic force for the upward movement of the drill rod. In this way, after the drilling is completed, in the initial stage of rising, the seeding rod moves upward, the drill rod is located in the soil layer, under the action of friction, the elastic member cannot drive the drill rod to rise, the blanking opening and the lower end of the seeding rod are relatively displaced, and the blanking opening is opened. At this time, the seeds can move to the blanking opening. With the continuous rising of the seeding rod, the transmission plate contacts the limiting plate, and the drill rod is pulled out of the drilling hole, and after the drill rod is separated from the soil layer, the drill rod continues to move upward relative to the seeding rod under the action of the elastic member, so that the transmission plate and the pressing plate are in contact. In subsequent drilling, the power can be transmitted to the pressing plate through the transmission plate, and then directly to the drill rod, so as to improve the drilling efficiency. At the same time, the blanking opening is closed by the seeding rod to avoid impurities from entering.

[0017] In an optional embodiment, the outer circumferential surface of the seeding rod is provided with a first tapered surface and a second tapered surface connected in sequence, the diameter of the first tapered surface gradually increases in the direction from the blanking opening to the rotary driver, and the first tapered surface is used to block the blanking opening; the diameter of the second tapered surface gradually decreases in the direction from the blanking opening to the rotary driver, and the second tapered surface is used to drive the pasture seeds moving in the blanking channel.

[0018] Based on the above scheme, the first conical surface can better contact the material falling port, and the sealing effect is good. During the drilling process, external soil particles are not easy to enter the material falling port. At the same time, when the seeds fall, the seeds are in contact with the second conical surface and are not easy to be blocked, and the material falling is more smooth.

[0019] In an optional embodiment, the drilling mechanism further comprises a material receiving disc fixed on the outer circumferential surface of the drill rod. The circumferential wall of the drill rod is provided with a plurality of feed ports in communication with the material falling channel, and the plurality of feed ports are arranged at intervals.

[0020] Based on the above scheme, the material receiving disc is an annular disc, which can receive seeds transported in different directions, and the material receiving is convenient. After the seeds fall on the material receiving disc, they can enter the material falling channel from the feed ports and finally be discharged from the material falling port.

[0021] In an optional embodiment, the seeding device further comprises a seed storage mechanism, the seed storage mechanism is installed on the walking device, and the seed storage mechanism comprises a seed storage bin and a plurality of conveying pipes, one end of each of the plurality of conveying pipes is connected with the seed storage bin, and the other end of each of the plurality of conveying pipes is connected with a material receiving disc of each of the plurality of seeding devices; a valve is arranged on each of the conveying pipes.

[0022] Based on the above scheme, when seeding is needed, the valve on the conveying pipe is opened, the seeds in the seed storage bin enter the conveying pipe under the action of gravity, and then enter the material receiving disc, so that the seed conveying is convenient and fast. Moreover, the opening time of the valve can be controlled, so as to adjust the amount of seeds falling into the material receiving disc and realize variable seeding.

[0023] In an optional embodiment, the seeding device further comprises a controller and a distance sensor, the controller is installed on the walking device, and the controller is in communication connection with the distance sensor and the valve; the distance sensor is installed on the conveying pipe, and the distance sensor is used to acquire distance information between the port of the conveying pipe and the material receiving disc; if the distance information is greater than a threshold value, the controller controls the valve to be opened for a set time and then closed.

[0024] Based on the above scheme, the distance sensor acquires the distance L between the conveying pipe and the material receiving disc in real time. When L is greater than the threshold value, it indicates that the drill rod is moving downward for drilling or has completed drilling. That is, the controller controls the valve to be opened when the drill rod moves downward. Since the material falling port is always closed when the drill rod moves downward, the seeds will not leak from the material falling port, which is safe and reliable. Moreover, compared with the mode of conveying the seeds to the material receiving disc after the drilling is completed, time is saved and the seeding efficiency is improved. That is, drilling and seed conveying are carried out synchronously, which is efficient.

[0025] The beneficial effects of the embodiments of the present application include, for example: To sum up, the no-tillage seeding machine for multi-variety pasture seeds provided by the present embodiment can have power by itself or be provided with power by a tractor, walk along the set route in the seeding area, and then the drilling mechanism and the seeding mechanism are started, the drilling mechanism is used to drill holes at the set positions, multiple drilling mechanisms can work simultaneously to obtain multiple holes, and each hole can be supplied with pasture seeds by the corresponding seeding mechanism, different seeding mechanisms can seed different varieties of pasture seeds, and thus multiple varieties of pasture seeds can be seeded simultaneously. The drilling method is used to provide the fixed-point seeding positions for the pasture seeds, and the original grassland is less damaged. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0027] Figure 1 FIG. 1 is a schematic view of the no-tillage seeding machine for multi-variety pasture seeds of the present embodiment; Figure 2 FIG. 2 is a schematic view of the drilling state of the seeding device of the present embodiment; Figure 3 FIG. 3 is a schematic view of the lifting state of the seeding device of the present embodiment after drilling; Figure 2 Figure 4 FIG. 4 is a partial enlarged schematic view of FIG. 3;

[0028] FIG. 5 is a schematic view of the lifting state of the seeding device of the present embodiment after drilling; 100 - walking device; 200 - seeding device; 210 - drilling mechanism; 211 - telescopic driver; 212 - rotary driver; 213 - drill rod; 214 - material dropping port; 215 - material dropping channel; 216 - feeding port; 217 - pressing plate; 218 - limiting plate; 2181 - avoiding through hole; 219 - material receiving disc; 220 - seeding mechanism; 221 - seeding rod; 2211 - first conical surface; 2212 - second conical surface; 222 - force transmission plate; 230 - elastic member; 240 - seed storage mechanism; 241 - seed storage bin; 242 - conveying pipe; 243 - valve; 244 - distance sensor. DETAILED DESCRIPTION

[0029] ​In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0031] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present application, it should be noted that if the terms such as "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0035] Please refer to Figures 1-4 The present embodiment provides a multi-species pasture seed no-tillage seeding machine, comprising: A walking device 100 and a plurality of seeding devices 200, the walking device 100 is used for walking on the ground, the plurality of seeding devices 200 are all installed on the walking device 100, and the plurality of seeding devices 200 are arranged at intervals in the advancing direction of the walking device 100; Each seeding device 200 comprises a drilling mechanism 210 and a seeding mechanism 220, the drilling mechanism 210 is installed on the walking device 100, and a feeding port 214 is arranged at the drilling end of the drilling mechanism 210; the seeding mechanism 220 is installed inside the drilling mechanism 210, and the seeding mechanism 220 is used for feeding seeds out from the feeding port 214.

[0036] As described above, the working principle of the multi-variety pasture seed no-tillage seeding machine provided by the embodiment is as follows: The walking device 100 can be powered by itself or by a tractor or the like, walks along a set route in a seeding area, and then the drilling mechanism 210 and the seeding mechanism 220 are started. The drilling mechanism 210 is used to drill holes at a set position, and multiple drilling mechanisms 210 can work simultaneously to obtain multiple holes. Each hole can be filled with pasture seeds by the corresponding seeding mechanism 220. Different seeding mechanisms 220 can be used to sow different varieties of pasture seeds, so that multiple varieties of pasture seeds can be sown at the same time. Since the drilling method is used to provide a fixed-point seeding position for the pasture seeds, the damage to the original grassland is small.

[0037] For example, the walking device 100 can be configured with an electric motor connected to the wheels, which can walk on the grassland. The walking device 100 can drive the seeding device 200 to move along a set route. In the embodiment, the details are not described in detail, and the known structures can be referred to.

[0038] The following embodiments illustrate the details of the multi-variety pasture seed no-tillage seeding machine of the present application by way of example.

[0039] Please refer to Figures 1-4 In the embodiment, the drilling mechanism 210 includes a telescopic drive 211, a rotary drive 212, and a drill rod 213. The telescopic drive 211 is installed on the walking device 100, the rotary drive 212 is installed on the telescopic end of the telescopic drive 211, and the drill rod 213 is installed on the rotary end of the rotary drive 212. The telescopic drive 211 is used to drive the rotary drive 212 and the drill rod 213 to ascend and descend, and the rotary drive 212 is used to drive the drill rod 213 to rotate. The material outlet 214 is arranged at the front end of the drill rod 213.

[0040] In this way, when drilling is needed, the rotary drive 212 can be started first to drive the drill rod 213 to rotate, and then the telescopic drive 211 can be started to drive the rotating drill rod 213 into the soil layer to drill a hole of a certain depth at a set position in the soil layer. After drilling is completed, the pasture seeds are discharged from the material outlet 214 and fall into the hole to complete the seeding.

[0041] It should be understood that the telescopic drive 211 can be a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

[0042] Please refer to Figures 1-4In the embodiment, the drill rod 213 is internally provided with a discharging channel 215, which is communicated with the discharging port 214; the drill rod 213 is internally provided with a pressing plate 217, and the drill rod 213 and the pressing plate 217 can be provided as an integrated structure. The seeding mechanism 220 comprises a seeding rod 221 and a force transmission plate 222, the seeding rod 221 is connected with the rotating end of the rotary driver 212, the force transmission plate 222 is connected with the seeding rod 221, and the two can be provided as an integrated structure; the force transmission plate 222 is slidably connected with the discharging channel 215 in the extension direction of the preset axis, and the force transmission plate 222 is relatively fixed with the discharging channel 215 in the direction around the preset axis; the force transmission plate 222 is located above the pressing plate 217.

[0043] When the telescopic driver 211 drives the rotary driver 212 to move downward, the force transmission plate 222 can be in contact with the pressing plate 217 to drive the drill rod 213 to move downward, and the seeding rod 221 can close the discharging port 214; when the telescopic driver 211 drives the rotary driver 212 to move upward, the seeding rod 221 opens the discharging port 214.

[0044] In this way, in the process of drilling, the telescopic driver 211 drives the rotary driver 212 to descend, and the seeding rod 221 installed on the rotary driver 212 also descends, and the seeding rod 221 can block the discharging port 214, so as to avoid the external soil and other impurities from entering the discharging channel 215. At the same time, when the seeding rod 221 descends, the force transmission plate 222 also descends, the force transmission plate 222 contacts the pressing plate 217, and drives the pressing plate 217 to descend together, that is, drives the drill rod 213 to descend. Since the force transmission plate 222 and the drill rod 213 will not rotate relative to each other, when the rotary driver 212 transmits the torque to the seeding rod 221, the force transmission plate 222 can drive the drill rod 213 to rotate, so that the drill rod 213 can descend and rotate to perform the drilling operation. When the drilling is completed, the telescopic driver 211 rises, the seeding rod 221 rises first, the drill rod 213 remains unchanged in height, and after the relative movement of the two, the discharging port 214 is opened, and the seeds can move to the position where the discharging port 214 is located. With the continuous rising of the seeding rod 221, it can drive the drill rod 213 to rise, and the seeds can be discharged from the discharging port 214 and fall into the drill hole, so as to realize the seeding.

[0045] It should be understood that the tip of the seeding rod 221 can be a conical surface, which protrudes out of the discharging port 214 to improve the sealing performance and reduce the probability of soil and other impurities entering the discharging channel 215.

[0046] In addition, the outer circumferential surface of the drill rod 213 can be processed with a spiral blade, so that the soil can be drilled more easily.

[0047] In this embodiment, optionally, the cross-sectional profile of the force transmission plate 222 is non-circular, and the cross-sectional profile of the material discharge channel 215 is non-circular, so that the force transmission plate 222 and the material discharge channel 215 are relatively fixed in the circumferential direction of the preset axis.

[0048] With this design, the force transmission plate 222 and the material discharge channel 215 have a simple structure, are easy to process and manufacture, have high transmission efficiency, and are not easily damaged. For example, the force transmission plate 222 can be a rectangular plate, and correspondingly, a part of the material discharge channel 215 can be a rectangular cavity. The force transmission plate 222 and the rectangular cavity cooperate to slide relative to each other and transmit torque.

[0049] Please combine Figures 1-4 In this embodiment, optionally, a limiting plate 218 is also provided inside the drill rod 213. The limiting plate 218 is provided with an avoidance through hole 2181. The seeding rod 221 passes through the avoidance hole. The force transmission plate 222 is located between the pressure plate 217 and the limiting plate 218. The force transmission plate 222 is used to contact the limiting plate 218 when moving upward, so as to drive the drill rod 213 to move upward.

[0050] With this design, by setting a limiting plate 218, when the sowing rod 221 moves upward, after the sowing rod 221 moves to the position of the limiting plate 218, it can transmit the pulling force to the drill rod 213 through the limiting plate 218, thereby driving the drill rod 213 to rise rapidly.

[0051] Please combine Figures 1-4 In this embodiment, optionally, the seeding device 200 further includes an elastic element 230, which is sleeved on the outside of the seeding rod 221. The elastic element 230 passes through the clearance through hole 2181, and the two ends of the elastic element 230 are respectively connected to the drill rod 213 and the force transmission plate 222, so as to make the drill rod 213 have an upward movement tendency, so as to use the seeding rod 221 to close the material drop port 214.

[0052] With this design, the elastic element 230 can be set as a spring. The elastic element 230, in its compressed state, provides the upward force for the drill rod 213. Thus, after drilling is completed, in the initial rising stage, the seeding rod 221 moves upward, and the drill rod 213 is located in the soil. Under the action of friction, the elastic element 230 cannot drive the drill rod 213 upward, and a relative displacement occurs between the material outlet 214 of the drill rod 213 and the lower end of the seeding rod 221, opening the material outlet 214. At this time, the seeds can move to the material outlet 214. As the seeding rod 221 continues to rise, the force transmission plate 222 contacts the limiting plate 218, pulling the drill rod 213 out of the borehole. After the drill rod 213 separates from the soil layer, under the action of the elastic element 230, the drill rod 213 continues to move upward relative to the seeding rod 221, causing the force transmission plate 222 to contact the pressure plate 217. This facilitates the transmission of power to the pressure plate 217 through the force transmission plate 222 during subsequent drilling, thereby directly transmitting the power to the drill rod 213 and improving drilling efficiency. At the same time, the material discharge port 214 is sealed by the seeding rod 221 to prevent impurities from entering.

[0053] Please combine Figures 1-4 In this embodiment, optionally, the outer peripheral surface of the seeding rod 221 is provided with a first conical surface 2211 and a second conical surface 2212 connected together. The diameter of the first conical surface 2211 gradually increases in the direction from the discharge port 214 to the rotary driver 212, and the first conical surface 2211 is used to block the discharge port 214. The diameter of the second conical surface 2212 gradually decreases in the direction from the discharge port 214 to the rotary driver 212, and the second conical surface 2212 is used to drive the pasture seeds moving in the discharge channel 215.

[0054] With this design, the first conical surface 2211 can better contact the discharge port 214, resulting in a good sealing effect. During drilling, it is not easy for external soil particles to enter the discharge port 214. At the same time, when the seed falls, it contacts the second conical surface 2212, making it less likely to be blocked and allowing for smoother seed delivery.

[0055] In this embodiment, optionally, the drilling mechanism 210 also includes a receiving tray 219, which is fixed on the outer peripheral surface of the drill rod 213. The drill rod 213 has a feed port 216 on its peripheral wall that communicates with the material drop channel 215. There are multiple feed ports 216 arranged at intervals, and all of the feed ports 216 are connected to the receiving tray 219.

[0056] With this design, the receiving tray 219 is a ring-shaped tray, which can receive seeds conveyed from different directions, making it convenient to receive seeds. Furthermore, after the seeds fall into the receiving tray 219, they can enter the discharge channel 215 through the feed inlet 216 and finally be discharged from the discharge outlet 214.

[0057] In this embodiment, optionally, the sowing device 200 further includes a seed storage mechanism 240, which is mounted on the walking device 100. The seed storage mechanism 240 includes a seed storage bin 241 and a plurality of conveying pipes 242. One end of each of the plurality of conveying pipes 242 is connected to the seed storage bin 241, and the other end of each of the plurality of conveying pipes 242 is connected to the receiving trays 219 of the plurality of sowing devices 200 respectively. Each conveying pipe 242 is provided with a valve 243.

[0058] With this design, when sowing is needed, the valve 243 on the conveying pipe 242 is opened, and the seeds in the seed storage bin 241 enter the conveying pipe 242 under gravity, and then enter the receiving tray 219, making seed conveying convenient and fast. Furthermore, the opening time of the valve 243 can be controlled, thereby adjusting the amount of seeds falling into the receiving tray 219 and realizing variable sowing.

[0059] In this embodiment, optionally, the seeding device 200 also includes a controller and a distance sensor 244. The controller is installed on the walking device 100 and is communicatively connected to both the distance sensor 244 and the valve 243. The distance sensor 244 is installed on the conveying pipe 242 and is used to obtain the distance information between the port of the conveying pipe 242 and the receiving tray 219. If the distance information is greater than a threshold, the controller controls the valve 243 to open for a set time and then close.

[0060] With this design, the distance sensor 244 acquires the distance L between the conveying pipe 242 and the receiving tray 219 in real time. When L is greater than a threshold, it indicates that the drill rod 213 is moving downwards to drill or has completed drilling. That is, when the drill rod 213 moves downwards, the controller opens the valve 243. Since the discharge port 214 remains closed during the downward movement of the drill rod 213, seeds will not leak from the discharge port 214, ensuring safety and reliability. Furthermore, compared to conveying seeds to the receiving tray 219 after drilling is completed, this method saves time and improves sowing efficiency. In other words, drilling and seed conveying are performed simultaneously, resulting in high efficiency.

[0061] It should be understood that valve 243 can be installed at the lower port of delivery pipe 242, and distance sensor 244 can be installed on the side of delivery pipe 242.

[0062] In addition, all seeding devices 200 can be configured with the same structure, which facilitates manufacturing and reduces maintenance costs.

[0063] The no-till planter for multiple varieties of forage seeds provided in this embodiment can not only achieve fixed-point sowing, reducing damage to the original grassland, but also sow multiple varieties of forage seeds at the same time, with high efficiency.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A no-till planter for multiple varieties of forage seeds, characterized in that, include: The walking device (100) and multiple seeding devices (200) are provided. The walking device (100) is used to walk on the ground. The multiple seeding devices (200) are all installed on the walking device (100) and are arranged at intervals in the direction of travel of the walking device (100). Each of the seeding devices (200) includes a drilling mechanism (210) and a seeding mechanism (220). The drilling mechanism (210) is installed on the walking device (100), and the drilling end of the drilling mechanism (210) is provided with a discharge port (214). The seeding mechanism (220) is installed inside the drilling mechanism (210) and is used to deliver seeds from the discharge port (214).

2. The no-till planter for multiple varieties of forage seeds according to claim 1, characterized in that: The drilling mechanism (210) includes a telescopic driver (211), a rotary driver (212), and a drill rod (213). The telescopic driver (211) is mounted on the walking device (100), the rotary driver (212) is mounted on the telescopic end of the telescopic driver (211), and the drill rod (213) is mounted on the rotary end of the rotary driver (212). The telescopic driver (211) is used to drive the rotary driver (212) and the drill rod (213) to rise and fall. The rotary driver (212) is used to drive the drill rod (213) to rotate. The material drop port (214) is located at the front end of the drill rod (213).

3. The no-till planter for multiple varieties of forage seeds according to claim 2, characterized in that: The drill rod (213) is provided with a material discharge channel (215) inside, which is connected to the material discharge port (214); the drill rod (213) is provided with a pressure plate (217). The sowing mechanism (220) includes a sowing rod (221) and a force transmission plate (222). The sowing rod (221) is connected to the rotating end of the rotary driver (212), and the force transmission plate (222) is connected to the sowing rod (221). The force transmission plate (222) is slidably connected to the material discharge channel (215) in the extension direction of a preset axis, and the force transmission plate (222) and the material discharge channel (215) are relatively fixed in the direction around the preset axis. The force transmission plate (222) is located above the pressure plate (217). When the telescopic actuator (211) drives the rotary actuator (212) to move downward, the force transmission plate (222) can contact the pressure plate (217) to drive the drill rod (213) to move downward, and the seeding rod (221) can close the discharge port (214); when the telescopic actuator (211) drives the rotary actuator (212) to move upward, the seeding rod (221) opens the discharge port (214).

4. The no-till planter for multiple varieties of forage seeds according to claim 3, characterized in that: The cross-sectional profile of the force transmission plate (222) is non-circular, and the cross-sectional profile of the material drop channel (215) is non-circular, so that the force transmission plate (222) and the material drop channel (215) are relatively fixed in the circumferential direction of the preset axis.

5. The no-till planter for multiple varieties of forage seeds according to claim 3, characterized in that: The drill rod (213) is also provided with a limiting plate (218), the limiting plate (218) is provided with a clearance through hole (2181), the seeding rod (221) passes through the clearance hole, the force transmission plate (222) is located between the pressure plate (217) and the limiting plate (218), the force transmission plate (222) is used to contact the limiting plate (218) when moving upward, so as to drive the drill rod (213) to move upward.

6. The multi-variety forage seed no-till planter according to claim 5, characterized in that: The seeding device (200) also includes an elastic element (230), which is sleeved on the outside of the seeding rod (221). The elastic element (230) passes through the clearance through hole (2181). The two ends of the elastic element (230) are respectively connected to the drill rod (213) and the force transmission plate (222) to make the drill rod (213) have an upward movement tendency, so as to close the material discharge port (214) with the seeding rod (221).

7. The no-till planter for multiple varieties of forage seeds according to any one of claims 3-6, characterized in that: The outer circumferential surface of the seeding rod (221) is provided with a first conical surface (2211) and a second conical surface (2212) connected together. The diameter of the first conical surface (2211) gradually increases in the direction from the discharge port (214) to the rotary driver (212), and the first conical surface (2211) is used to block the discharge port (214). The diameter of the second conical surface (2212) gradually decreases in the direction from the discharge port (214) to the rotary driver (212), and the second conical surface (2212) is used to drive the pasture seeds moving in the discharge channel (215).

8. The no-till planter for multiple varieties of forage seeds according to any one of claims 3-6, characterized in that: The drilling mechanism (210) also includes a receiving tray (219), which is fixed on the outer circumferential surface of the drill rod (213); The drill rod (213) has a feed inlet (216) on its peripheral wall that communicates with the material drop channel (215). There are multiple feed inlets (216) arranged at intervals, and all of the feed inlets (216) are connected to the receiving tray (219).

9. The no-till planter for multiple varieties of forage seeds according to claim 8, characterized in that: The sowing device (200) also includes a seed storage mechanism (240), which is installed on the walking device (100). The seed storage mechanism (240) includes a seed storage bin (241) and multiple conveying pipes (242). One end of each of the multiple conveying pipes (242) is connected to the seed storage bin (241), and the other end of each of the multiple conveying pipes (242) is connected to the receiving tray (219) of each of the multiple sowing devices (200). Each of the conveying pipes (242) is provided with a valve (243).

10. The no-till planter for multiple varieties of forage seeds according to claim 9, characterized in that: The seeding device (200) also includes a controller and a distance sensor (244). The controller is installed on the walking device (100) and is communicatively connected to both the distance sensor (244) and the valve (243). The distance sensor (244) is installed on the conveying pipe (242) and is used to obtain the distance information between the port of the conveying pipe (242) and the receiving tray (219). If the distance information is greater than a threshold, the controller controls the valve (243) to open for a set time and then close.

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