Radish seeder with multiple linkage mechanisms

Abstract

The utility model relates to the technical field of radish seeding, in particular to a multi-linkage mechanism radish seeding machine which comprises a movable frame, a linkage seeding structure comprises a seed screening assembly arranged at the top of the inner side of the movable frame, a power transmission assembly is arranged at the bottom of the seed screening assembly, and a seeding assembly is arranged at the bottom of the power transmission assembly. According to the multi-linkage-mechanism radish seeding machine, through the design of the multi-linkage mechanisms, all the mechanisms operate in a coordinated mode, after radish seeds are screened through the seed screening assembly, the seeding depth and spacing are accurately controlled through the seeding assembly, it is ensured that the seeds are evenly distributed, top removing and leaf threshing operation is automatically conducted on radishes through the growth promoting assembly, and the working efficiency is improved. The soil temperature and humidity can be monitored in real time through the soil temperature and humidity sensor, meanwhile, the camera is connected into the high-resolution imaging system, regular health inspection is conducted on the growth condition of radishes, therefore, diseases and insect pests are found in time, fertilization and deinsectization are conducted regularly, and the yield of the radishes is further increased.

Description

Technical Field

[0001] The utility model relates to the technical field of radish sowing, in particular to a radish sowing machine with a multi-linkage mechanism. Background Art

[0002] A seeder is a planting machine that sows crop seeds. With the rapid development of industrialization, agricultural production has put forward higher requirements on efficiency. China's crop sowing operations have begun to develop in the direction of mechanization. In recent years, China's sowing machinery industry as a whole has made great progress, and the application of various types of seeders has developed rapidly. Based on the new development period, sowing combined operations have become a development trend, supporting the completion of multiple operations such as tillage and fertilization at the same time, meeting multiple operation requirements, with high operation efficiency and matching power operations. The application of high-power mechanical equipment can create favorable conditions for the development of combined operation machinery and is of great significance to energy conservation.

[0003] After searching, it was found that a radish seeder was disclosed in a utility model patent with Chinese patent publication number CN214385058U. The radish seeder in the utility model patent completes the seed sowing process of trenching and covering soil by designing a trenching wheel and a soil covering wheel, and utilizes the rotation of the discharge wheel to drive the seeds to rotate and be discharged through a discharge pipe. The seeds are discharged at a certain speed, which can neutralize the acceleration generated by the device when it moves, so that the sown seeds can fall vertically to avoid the problem of rolling when the seeds fall to the ground. However, combined with the sowing structure of the radish seeder, it can be seen that the function of the seeder is relatively single, and it is impossible to detect the growth of radishes and remove the nutrient consumption of excess leaves while sowing, and it is impossible to detect soil temperature and humidity data during sowing, and it is impossible to provide data support for fertilization and irrigation. Therefore, the multifunctional planting structure of the radish seeder needs to be further improved.

[0004] In view of the seeding machines in the prior art, most of the functions are relatively single, usually only having the function of furrowing and sowing, but unable to integrate multiple functions in one, and unable to effectively reduce the number of other agricultural machinery used and reduce the cost of machinery use. Therefore, in order to further improve the efficiency of radish planting, achieve precise sowing and fertilization while reducing the cost of manpower and mechanical sowing, a radish seeding machine with a multi-linkage mechanism is proposed. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The technical problem to be solved by the utility model is to provide a radish seeder with multiple linkage mechanisms which can coordinate the operation of various mechanisms to improve the planting efficiency.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solution: a radish seeding machine with a multi-linkage mechanism, comprising a mobile frame, wherein a linkage seeding structure is arranged inside the mobile frame;

[0009] The linkage sowing structure comprises a seed screening component arranged on the top of the inner side of the moving frame, a power transmission component is arranged at the bottom of the seed screening component, and a seed placing component is arranged at the bottom of the power transmission component.

[0010] Furthermore, the seed screening assembly includes a seed collecting box fixedly mounted on the top inner side of a mobile frame, the bottom of the seed collecting box is connected with a seed screening box, the interior of the seed screening box is rotatably connected with a seed screening ring, the left and right sides of the seed screening box are rotatably connected with a support frame with a disc structure, the interior of the seed screening ring is coaxially fixed with a supporting rotating rod, and the supporting rotating rod is coaxially fixed to the inner sides of the two supporting frames.

[0011] Furthermore, a worm gear is coaxially fixed to the outside of the supporting rotating rod, the bottom of the seed screening box is connected to a seed temporary storage box, the inside of the seed temporary storage box is rotatably connected to a ratchet bearing, the outer side of the ratchet bearing is fixedly connected to a seed-moving piece with an arc structure, and the bottom of the seed temporary storage box is connected to a seed conveying pipe.

[0012] Furthermore, the power transmission assembly includes a first DC motor fixedly mounted on the inner side of a mobile frame, the output end of the first DC motor is fixedly connected to a first coupling, the bottom of the first coupling is fixedly connected to a lead screw, the inner side of the mobile frame is rotatably connected to a seed screen optical axis, the top of the seed screen optical axis is coaxially fixed to the inner side of a ratchet bearing, the inner side of the mobile frame is rotatably connected to a second coupling, and the top of the second coupling is meshed with the outer side of the worm wheel through a worm structure.

[0013] Furthermore, the inner side of the movable frame is rotatably connected to a tensioning optical axis, and the inner side of the movable frame is rotatably connected to an angle optical axis, and the inner bottom of the movable frame is rotatably connected to nine No. 1 synchronous pulleys, and the nine No. 1 synchronous pulleys are connected through a No. 1 belt drive.

[0014] Furthermore, a sliding column rod is fixedly connected to the inner side of the movable frame, and a ring seat is slidably connected to the outside of the sliding column rod, and the seed placement assembly includes a seed discharging tube fixedly connected to the bottom of the ring seat, a vertical groove is provided on the rear side of the seed discharging tube, and a front pointed mouth is fixedly connected to the bottom of the seed discharging tube, a rear pointed mouth is movably connected to the back side of the front pointed mouth, and the front and rear sides of the front pointed mouth are fixedly connected to telescopic upper plates, and baffles are fixedly connected to the opposite sides of the two telescopic upper plates.

[0015] Furthermore, a pressure rod is slidably connected to the inside of the baffle, and telescopic lower plates are fixedly connected to the front and rear sides of the rear pointed mouth. The opposite sides of the two telescopic lower plates are rotatably connected to a cross connecting piece, the outer side of the pressure rod is fixedly connected to the inner side of the cross connecting piece, and the top of the cross connecting piece is fixedly connected to a cylindrical helical compression spring, and the top of the cylindrical helical compression spring is fixedly connected to the bottom of the baffle.

[0016] Furthermore, a growth promotion component is provided on the right side of the mobile frame, and the growth promotion component includes a mounting frame fixed to the right side of the mobile frame, a first stepper motor is fixedly installed on the inner top of the mounting frame, an output end of the first stepper motor is fixedly connected to a connector, two No. 2 synchronous pulleys are rotatably connected to the inner side of the mounting frame and connected through a No. 2 belt drive, and the connector is fixedly connected to the rear end of one of the No. 2 synchronous pulleys.

[0017] Furthermore, a slide rail is fixedly installed on the top of the mounting frame, a slide plate is slidably connected to the outer side of the slide rail, two vertical guide plates are fixedly connected to the bottom of the slide plate, a U-shaped frame is slidably connected to the opposite sides of the two vertical guide plates, a second stepper motor is fixedly installed on the front side of the U-shaped frame, an eccentric cam is fixedly connected to the output end of the second stepper motor, guide grooves are opened on the opposite sides of the two vertical guide plates, a slot plate seat with a T-shaped structure is slidably connected to the inner sides of the two guide grooves, and a sliding wheel is rotatably connected to the top of the slot plate seat.

[0018] Furthermore, the inner front wall and the inner rear wall of the slot plate seat are both provided with transverse grooves, the interiors of the two transverse grooves are slidably connected with optical axis rods, the inner bottom of the U-shaped frame is rotatably connected with two L-shaped frames, the tops of the two L-shaped frames are respectively rotatably connected with the outsides of the two optical axis rods, and a number of second DC motors are fixedly installed at the bottom of the two L-shaped frames, and the output end of each of the second DC motors is fixedly connected with a rotary slice. Beneficial Effects

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] 1. The multi-linkage mechanism radish seeder uses a multi-linkage mechanism design to coordinate the operation of various mechanisms. The seed screening component is used to screen the radish seeds, and the seed placement component accurately controls the sowing depth and spacing to ensure uniform seed distribution, thereby providing good initial growth conditions for the radish.

[0021] 2. The multi-linkage mechanism radish seeder automatically removes the tops and leaves of radishes through the growth-promoting components, eliminating the apical dominance of radishes during growth, promoting the growth of radish side branches, and improving yield and quality.

[0022] 3. The multi-linkage mechanism radish seeder can monitor soil temperature and humidity in real time by inserting the soil temperature and humidity sensor on the front pointed mouth into the soil layer, providing data support for suitable growth temperature and humidity for crops. At the same time, it uses a camera to access a high-resolution imaging system to conduct regular health checks on the growth of radishes, thereby promptly detecting diseases and pests and regularly applying fertilizers and pest control, further increasing radish yields. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0024] Figure 2 for Figure 1 Schematic diagram of the mobile frame structure in perspective;

[0025] Figure 3 for Figure 1 Schematic diagram of growth-promoting development components in perspective;

[0026] Figure 4 for Figure 1 Right view of the perspective;

[0027] Figure 5 for Figure 1 rear view of perspective;

[0028] Figure 6 for Figure 1 A top view of the perspective;

[0029] Figure 7 for Figure 5 Schematic diagram of some structures of the viewing angle;

[0030] Figure 8 for Figure 7 Side view of perspective;

[0031] Fig. 9 for Figure 7 A top view of the perspective;

[0032] Fig.10 for Fig. 9 Schematic diagram of some structures in the viewing angle;

[0033] Fig.11 for Figure 1 Front view of the mobile frame structure in perspective;

[0034] Fig.12 for Fig.11 rear view of perspective;

[0035] Fig.13 for Fig.11 Side view of perspective;

[0036] Fig.14 for Fig.11 A top view of the perspective;

[0037] Fig.15 for Fig.13 Schematic diagram of the structure of the lower component in the viewing angle;

[0038] Fig.16 for Fig.15 Schematic diagram of the pressure rod structure in the viewing angle;

[0039] Fig.17 This is a framework diagram of the mobile frame control system of the utility model.

[0040] In the figure: 1. mobile frame; 2. linkage sowing structure; 21. seed screening assembly; 2101. seed collecting box; 2102. seed screening box; 2103. seed screening ring; 2104. support frame; 2105. support rotating rod; 2106. seed temporary storage box; 2107. ratchet bearing; 2108. seed picking piece; 2109. seed transmission tube; 22. power transmission assembly; 2201. first DC motor; 2202. first coupling; 2203. lead screw; 2204. seed screening optical axis; 2205. second coupling; 2206. tensioning optical axis; 2207. wrap angle optical axis; 23. seed placing assembly; 2301. seed discharging tube; 2302. front pointed mouth; 2303. rear pointed mouth; 2304. telescopic upper plate ; 2305, baffle; 2306, pressure rod; 2307, telescopic lower plate; 2308, cross connector; 2309, cylindrical helical compression spring; 3, worm gear; 4, No. 1 synchronous pulley; 5, sliding column rod; 6, growth promotion component; 601, mounting frame; 602, first stepper motor; 603, connector; 604, sliding plate; 605, vertical guide plate; 606, U-shaped frame; 607, second stepper motor; 608, eccentric cam; 609, slot plate seat; 610, sliding wheel; 611, L-shaped frame; 612, second DC motor; 7, No. 2 synchronous pulley; 8, slide rail; 9, hub motor; 10, camera; 11, soil temperature and humidity sensor; 12, control box; 13, tillage knife frame. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] See also Figure 1-17A radish seeder with a multi-linkage mechanism comprises a mobile frame 1, a linkage sowing structure 2 is arranged inside the mobile frame 1, a worm gear 3 is coaxially fixed to the outside of the supporting rotating rod 2105, nine No. 1 synchronous pulleys 4 are rotatably connected to the bottom inner side of the mobile frame 1, a sliding column rod 5 is fixedly connected to the inner side of the mobile frame 1, a growth promoting component 6 is arranged on the right side of the mobile frame 1, two No. 2 synchronous pulleys 7 are rotatably connected to the inner side of the mounting frame 601 and connected through a No. 2 belt drive, a slide rail 8 is fixedly installed on the top of the mounting frame 601, hub motors 9 are movably installed at the four corners of the bottom of the mobile frame 1, a camera 10 is fixedly installed at the bottom front of the mobile frame 1, a soil temperature and humidity sensor 11 is fixedly installed at the bottom outer side of the front tip 2302, a control box 12 is fixedly installed on the left side of the mobile frame 1, a tillage knife frame 13 is movably installed on the rear side of the mobile frame 1, and the camera 10 and the soil temperature and humidity sensor 11 are both connected to the control box 12 signal.

[0043] The linkage sowing structure 2 includes a seed screening component 21 arranged at the top of the inner side of the moving frame 1 , a power transmission component 22 is arranged at the bottom of the seed screening component 21 , and a seed placing component 23 is arranged at the bottom of the power transmission component 22 .

[0044] according to Figure 1 and Fig.11 as well as Fig.14 As shown, radish seeds are put into the seed collecting box 2101. At this time, the first DC motor 2201 drives one of the No. 1 synchronous pulleys 4 by driving the first coupling 2202 and the screw 2203. Since the tops of the nine No. 1 synchronous pulleys 4 are respectively connected to the screw 2203, the seed screening optical axis 2204, the second coupling 2205, the tensioning optical axis 2206 and the angle wrapping optical axis 2207, the nine No. 1 synchronous pulleys 4 are connected by a No. 1 belt drive, so that the screw 2203, the seed screening optical axis 2204, the second coupling 2205, the tensioning optical axis 2206 and the angle wrapping optical axis 2207 also rotate synchronously.

[0045] according to Figure 1 and Fig.11 as well as Fig.14 As shown, the second coupling 2205 is used to drive the worm structure connected to its top, and the worm structure is engaged with the worm wheel 3 on the outside of the supporting rotating rod 2105. When the radish seeds enter the seed collecting box 2101, the first DC motor 2201 drives the lead screw 2203, and the second coupling 2205 drives the supporting rotating rod 2105 to rotate clockwise through the worm. The supporting rotating rod 2105 drives two seed screening rings 2103 respectively through two supporting frames 2104 to perform the first seed screening process on the seeds. When the seeds enter the seed temporary storage box 2106, the second coupling 2205 stops driving the supporting rotating rod 2105.

[0046] according to Figure 1 and Fig.12 as well as Fig.14 As shown, the first DC motor 2201 drives the lead screw 2203 in reverse, and the second coupling 2205 and the seed screening optical axis 2204 both rotate in the opposite direction compared with the first seed screening process. At this time, the two seed screening optical axes 2204 synchronously drive the ratchet bearings 2107, and the two ratchet bearings 2107 respectively drive the seed removing pieces 2108 to perform the second step of seed screening on the seeds in the seed temporary storage box 2106. At this time, the qualified seeds after the screening are discharged into the seed discharging tube 2301 through the seed conveying pipe 2109 below, and the front pointed mouth 2302 and the rear pointed mouth 2303 are opened for sowing, and the tensioning optical axis 2206 is used to adjust the tension of the No. 1 belt outside the No. 1 synchronous pulley 4.

[0047] according to Fig.11 and Fig.15 as well as Fig.16 As shown, the seed discharging tube 2301 can move up and down on the outside of the sliding column rod 5 through the ring seat, and the bottom ends of the two seed transmission tubes 2109 extend into the vertical groove structure on the rear side of the seed discharging tube 2301 respectively, so that the seeds can be accurately discharged into the seed discharging tube 2301. When the seeds drive the front pointed mouth 2302 and the rear pointed mouth 2303 to move down and contact the ground, the ground will give an upward thrust to the circular soil pressing plate under the pressure rod 2306, so that the pressure rod 2306 drives the cross connecting piece 2308 to rise. At this time, the cross connecting piece 2308 drives the telescopic lower plate 2307 to tilt and swing up, so that the telescopic lower plate 2307 drives the rear pointed mouth 2303 to open, and the seeds are automatically sown.

[0048] according to Fig.11 and Fig.15 as well as Fig.16 As shown, by adjusting the height of the pressure rod 2306, the opening time of the front tip 2302 and the rear tip 2303 inserted into the ground can be controlled, thereby adjusting the seeding depth. A connecting disk and a linear bearing are fixed to the top of the telescopic upper plate 2304, and a self-locking device is provided on the inner side of the linear bearing. The self-locking device can be used to control the lifting and lowering movement of the pressure rod 2306. After the seeds are released, the self-locking mechanism between the linear bearing and the pressure rod 2306 is released, and the soil pressure plate of the pressure rod 2306 can contact the ground again to achieve cyclic reset and prepare for the next sowing action. At the same time, the cylindrical helical compression spring 2309 can ensure that the front tip 2302 and the rear tip 2303 automatically close after opening.

[0049] according to Figure 3 and Figure 5 as well as Figure 7 As shown, the first stepper motor 602 drives one of the No. 2 synchronous pulleys 7 through the connector 603, and the two No. 2 synchronous pulleys 7 are connected by the No. 2 belt transmission. The bottom of the sliding plate 604 is fixed to the outer side of the No. 2 belt, and the sliding plate 604 can be driven to slide left and right along the slide rail 8 by driving the No. 2 belt.

[0050] according to Figure 3 and Figure 5 as well as Figure 7 As shown, the bottom of the sliding plate 604 is connected to the top of the U-shaped frame 606 through two pneumatic push rods, which can control the up and down moving height of the U-shaped frame 606 along the vertical guide plate 605. The second stepper motor 607 is used to drive the eccentric cam 608 to eccentrically rotate, and the eccentric cam 608 is used to repeatedly squeeze the sliding wheel 610, and the sliding wheel 610 pushes the slot plate seat 609 to move up and down along the guide slot of the vertical guide plate 605.

[0051] according to Figure 7 and Figure 8 as well as Fig. 9 As shown, when the slot plate seat 609 moves downward, it will slide in the horizontal slot through the optical axis rod structure, thereby pushing the two L-shaped frames 611 to open. At this time, the bottom of the L-shaped frame 611 enters the radish growth area, and multiple second DC motors 612 are used to drive the rotary slicer to cut off the excess leaf stems of the radish, thereby realizing the radish seedling removal operation. At the same time, an extrusion wheel is provided at the bottom of the L-shaped frame 611, and the extrusion wheel is connected to the L-shaped frame 611 through a spring structure, which can limit the position when cutting radish leaves.

[0052] according to Figure 1 and Figure 6 As shown, the control box 12 is internally provided with a control chip, a display screen structure, a HC-05 Bluetooth module and an L298N motor drive module;

[0053] The control chip selected is STM32F103C8T6, a 32-bit microcontroller based on the Cortex-M3 core launched by STMicroelectronics. The hardware adopts LQFP48 package. It contains a high-performance RISC core, running at a frequency of 72MHz, high-speed embedded memory, enhanced input and output with enhanced range, and external connection to two APB buses. STM32F103RCT6 has a 12-bit analog-to-digital converter, timer, PWM timer, standard and advanced communication interfaces, and comprehensive power saving modes allow designers to design low-power applications;

[0054] The display screen uses an OLED display screen, which has the advantages of bright colors and low power consumption. Its display technology has the characteristics of self-luminescence. Through a very thin organic material coating and a glass substrate, the screen can display the detected soil temperature and humidity;

[0055] When the HC-05 Bluetooth module is in command response mode or AT mode, it can execute AT commands. Users can send various AT instructions to the module to set control parameters or issue control commands for the module.

[0056] Features of L298N motor driver module: good starting performance, large starting torque, working voltage can reach 36v, 4A, using LM2596S DC adjustable step-down module, can output maximum 3A driving current, and has good linear and load regulation characteristics;

[0057] according to Figure 1 and Fig.15 As shown, the soil temperature and humidity sensor 11 can detect the temperature and humidity data of the soil, and the corresponding threshold is controlled by adjusting the potentiometer. When the humidity is lower than the set value, DO outputs a high level, and when it is higher than the set value, DO outputs a low level. The hub motor 9 uses four JGB37-545 reduction motors, each of which is connected to the microcontroller I / O port for communication through the L298N motor driver module, and the PWM signal control is controlled by the L298N motor driver module to adjust the forward speed and direction.

[0058] according to Figure 1 and Figure 3 as well as Figure 4 As shown, the first DC motor 2201 and the second DC motor 612 are both 4632 worm gear reduction motors. The DC motor electronic regulator is controlled by the I / O port of the single-chip microcomputer, which can control the direction and speed of the motor. The speed part uses PWM signal wave control, which can adjust the speed and direction of the cone seeder according to user needs, and can control the screw rod to move up and down to make the drill bit move downward.

[0059] according to Fig.12 and Fig.15 As shown, both the seed screening component 21 and the seed placement component 23 use the HC-05 module. The mobile phone transmits information to the HC-05 via Bluetooth, and then communicates with the STM32 through the serial port. The mobile phone applet can control its movement, sowing, spraying pesticides, and detecting soil moisture.

[0060] In summary, the multi-linkage mechanism radish seeder, through the design of the multi-linkage mechanism, coordinates the operation of various mechanisms, uses the seed screening component 21 to screen the radish seeds, and then uses the seed placement component 23 to accurately control the sowing depth and spacing to ensure that the seeds are evenly distributed, thereby facilitating the provision of good initial growth conditions for the radish, and automatically removes the top and leaves of the radish through the growth promotion component 6, thereby eliminating the apical dominance of the radish during growth, promoting the growth of lateral branches of the radish, and improving the yield and quality. The soil temperature and humidity sensor 11 on the front pointed mouth 2302 inserted into the soil layer can monitor the soil temperature and humidity in real time, providing data support for suitable growth temperature and humidity for crops, and at the same time using the camera 10 to access the high-resolution imaging system to perform regular health checks on the growth of the radish, thereby timely discovering diseases and insect pests and regularly applying fertilizers and removing insects, further improving the radish yield, and solving the problem that the radish seeder in the above-mentioned background technology has a relatively single sowing functionality and cannot effectively reduce the use cost of other mechanical equipment and the labor of human operation.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radish seeder with a multi-linkage mechanism, comprising a mobile frame (1), characterized in that: A linkage sowing structure (2) is provided inside the movable frame (1); The linked sowing structure (2) comprises a seed screening component (21) arranged at the top of the inner side of the moving frame (1), a power transmission component (22) is arranged at the bottom of the seed screening component (21), and a seed placing component (23) is arranged at the bottom of the power transmission component (22).

2. A radish seeder with a multi-linkage mechanism according to claim 1, characterized in that: The seed screening assembly (21) comprises a seed collecting box (2101) fixedly mounted on the top of the inner side of the mobile frame (1); the bottom of the seed collecting box (2101) is connected to a seed screening box (2102); the interior of the seed screening box (2102) is rotatably connected to a seed screening ring (2103); the left and right sides of the seed screening box (2102) are both rotatably connected to a support frame (2104) with a disc structure; a support rotating rod (2105) is coaxially fixed to the interior of the seed screening ring (2103); and the support rotating rod (2105) is coaxially fixed to the inner sides of two support frames (2104).

3. A radish seeder with multiple linkage mechanisms according to claim 2, characterized in that: A worm gear (3) is coaxially fixed to the outside of the supporting rotating rod (2105); a seed temporary storage box (2106) is connected through the bottom of the seed screening box (2102); a ratchet bearing (2107) is rotatably connected inside the seed temporary storage box (2106); a seed-moving piece (2108) with an arc-shaped structure is fixedly connected to the outside of the ratchet bearing (2107); and a seed conveying pipe (2109) is connected through the bottom of the seed temporary storage box (2106).

4. A radish seeder with multiple linkage mechanisms according to claim 3, characterized in that: The power transmission assembly (22) comprises a first DC motor (2201) fixedly mounted on the inner side of the moving frame (1); the output end of the first DC motor (2201) is fixedly connected to a first coupling (2202); the bottom of the first coupling (2202) is fixedly connected to a lead screw (2203); the inner side of the moving frame (1) is rotatably connected to a seed screening optical axis (2204); the top of the seed screening optical axis (2204) is coaxially fixed to the inner side of a ratchet bearing (2107); the inner side of the moving frame (1) is rotatably connected to a second coupling (2205); the top of the second coupling (2205) is meshed with the outer side of a worm wheel (3) via a worm structure.

5. The radish seeder with multiple linkage mechanisms according to claim 1, characterized in that: The inner side of the moving frame (1) is rotatably connected to a tensioning optical axis (2206), and the inner side of the moving frame (1) is rotatably connected to an angle wrapping optical axis (2207). The inner bottom of the moving frame (1) is rotatably connected to nine number one synchronous pulleys (4), and the nine number one synchronous pulleys (4) are connected via a number one belt transmission.

6. The radish seeder with multiple linkage mechanisms according to claim 1, characterized in that: The inner side of the movable frame (1) is fixedly connected to a sliding column rod (5), and the outer side of the sliding column rod (5) is slidably connected to a collar seat. The seed placement assembly (23) comprises a seed discharging tube (2301) fixedly connected to the bottom of the collar seat, a vertical groove is provided on the rear side of the seed discharging tube (2301), and a front pointed mouth (2302) is fixedly connected to the bottom of the seed discharging tube (2301), and a rear pointed mouth (2303) is movably connected to the back side of the front pointed mouth (2302), and the front and rear sides of the front pointed mouth (2302) are fixedly connected to telescopic upper plates (2304), and baffles (2305) are fixedly connected to the opposite sides of the two telescopic upper plates (2304).

7. The radish seeder with multiple linkage mechanisms according to claim 6, characterized in that: The baffle (2305) is internally slidably connected to a pressure rod (2306), the front and rear sides of the rear pointed mouth (2303) are fixedly connected to telescopic lower plates (2307), the opposite sides of the two telescopic lower plates (2307) are rotatably connected to a cross connecting piece (2308), the outer side of the pressure rod (2306) is fixedly connected to the inner side of the cross connecting piece (2308), the top of the cross connecting piece (2308) is fixedly connected to a cylindrical helical compression spring (2309), and the top of the cylindrical helical compression spring (2309) is fixedly connected to the bottom of the baffle (2305).

8. The radish seeder with multiple linkage mechanisms according to claim 1, characterized in that: A growth promoting component (6) is arranged on the right side of the mobile frame (1), and the growth promoting component (6) comprises a mounting frame (601) fixed to the right side of the mobile frame (1), a first stepper motor (602) is fixedly mounted on the inner top of the mounting frame (601), an output end of the first stepper motor (602) is fixedly connected to a connector (603), two No. 2 synchronous pulleys (7) connected via a No. 2 belt drive are rotatably connected to the inner side of the mounting frame (601), and the connector (603) is fixedly connected to the rear end of one of the No. 2 synchronous pulleys (7).

9. The radish seeder with multiple linkage mechanisms according to claim 8, characterized in that: A slide rail (8) is fixedly mounted on the top of the mounting frame (601), a sliding plate (604) is slidably connected to the outer side of the slide rail (8), two vertical guide plates (605) are fixedly connected to the bottom of the sliding plate (604), a U-shaped frame (606) is slidably connected to the opposite side of the two vertical guide plates (605), a second stepper motor (607) is fixedly mounted on the front side of the U-shaped frame (606), an eccentric cam (608) is fixedly connected to the output end of the second stepper motor (607), a guide groove is provided on the opposite side of the two vertical guide plates (605), a slot plate seat (609) of a T-shaped structure is slidably connected to the inner side of the two guide grooves, and a sliding wheel (610) is rotatably connected to the top of the slot plate seat (609).

10. The radish seeder with multiple linkage mechanisms according to claim 9, characterized in that: The inner front wall and the inner rear wall of the slot plate seat (609) are both provided with transverse grooves, the interiors of the two transverse grooves are slidably connected to optical axis rods, the inner bottom of the U-shaped frame (606) is rotatably connected to two L-shaped frames (611), the tops of the two L-shaped frames (611) are respectively rotatably connected to the outsides of the two optical axis rods, and a plurality of second DC motors (612) are fixedly installed at the bottoms of the two L-shaped frames (611), and the output end of each second DC motor (612) is fixedly connected to a rotary slice.

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