A seed sowing device for a seedling tray

Abstract

The present application relates to the technical field of seed sowing of seedling tray, and particularly relates to a seedling tray seed sowing device for agricultural seedling, which comprises an intermittent conveying structure, a device frame and a seed box, the conveying structure is connected with the device frame, the seed box is fixed above the conveying structure and the device frame, a telescopic frame structure is arranged below the seed box, an electric telescopic rod is fixed to the bottom surface of the seed box, the lower end of the electric telescopic rod is connected with the lower telescopic end of the telescopic frame structure, damping structures are arranged on both sides of the telescopic frame structure to apply resistance to the upper telescopic end of the telescopic frame structure, and the upper end of the damping structure is fixed with the seed box. The lower telescopic end of the telescopic frame structure drives the soil separating rod and the elastic soil separating piece to move upwards first, the elastic soil separating piece is deformed under the resistance of the damping structure when the discharging pipe pushes the elastic soil separating piece, the lower end of the discharging pipe extends out of the elastic soil separating piece, the seed in the discharging pipe falls into the pressed hole without moving out of the pressed state of the pressed hole, and the seed cannot fall outside the pressed hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seed sowing in seedling trays, and in particular to a seed sowing device for agricultural seedling trays. BACKGROUND

[0002] Seedling plug trays are plastic products for cultivating seedlings, and the surfaces of the seedling plug trays are provided with a plurality of seedling holes arranged in rows. Whether it is flowers or vegetables, plug seedling is the most fundamental reform in modern horticulture, which provides guarantee for fast and large-scale production.

[0003] Chinese patent CN119234516A discloses an agricultural seedling tray sowing device, relating to the technical field of seedling tray sowing devices. It comprises two support plates and a seedling tray body, two storage boxes and a seed storage box are fixedly installed on the two support plates, and the position of the seed storage box is between the two storage boxes. The application makes the seedling tray body convey on the conveying belt through the conveying assembly, then the mud in the storage cavity is conveniently discharged into the seedling tray body in two steps through the quantitative discharge assembly one, when the first mud discharge is completed, the seedling seeds are conveniently discharged into the mud through the quantitative discharge assembly two, then the seeds are buried in the middle of the mud through the second mud discharge, and then the seedling tray body is slightly pressed when the first discharged mud and the discharged seedling seeds are completed through the pressing assembly, so that the contact effect of the mud and the seedling seeds in the seedling tray body is better, and the absorption and growth ability of the seeds is improved. The above-mentioned related technology has the following defects: the seedling tray sowing device is placed on the intermittent conveying conveying structure during sowing, mud is first added to the seedling holes of the seedling tray, then the pressing groove is pressed in the seedling hole through the pressing structure, and then the seeds are placed in the pressed groove, but the existing pressing hole step and seed placing step are generally separated, and the seedling tray is prone to displacement during conveying, so that the subsequently falling seeds cannot accurately fall into the pressed groove, but fall outside the groove. Therefore, a seedling tray sowing device for agricultural seedling is proposed. SUMMARY

[0004] In order to ensure that the seeds can fall into the pressed groove and facilitate subsequent soil covering treatment, the present application provides a seedling tray sowing device for agricultural seedling.

[0005] The seedling tray sowing device for agricultural seedling provided by the present application adopts the following technical scheme: an intermittent conveying conveying structure, a device frame and a seed box are provided, the conveying structure is connected with the device frame, the seed box is fixed above the conveying structure and the device frame, a telescopic frame structure is arranged below the seed box, an electric telescopic rod is fixed to the bottom surface of the seed box, the lower end of the electric telescopic rod is connected with the lower telescopic end of the telescopic frame structure, damping structures are arranged on both sides of the telescopic frame structure to apply resistance to the upper telescopic end of the telescopic frame structure, the upper ends of the damping structures are fixed with the seed box, and the upper telescopic end of the telescopic frame structure is connected with the damping structures.

[0006] The seed box is provided below the distribution pipe, the upper end of the distribution pipe is communicated and installed with the seed distribution structure, the upper end of the distribution structure is communicated and installed with the bottom surface of the seed box, the lower end of the distribution pipe is slidingly inserted with the discharging pipe, the discharging pipe is fixed with the upper and lower telescopic ends of the telescopic frame structure, the lower end of the discharging pipe is slidingly inserted with the soil distribution rod, the back surface of the soil distribution rod is fixed with the lower telescopic end of the telescopic frame structure, and the bottom surface of the soil distribution rod is installed with a plurality of elastic soil distribution pieces.

[0007] Optionally, the telescopic frame structure comprises an upper rod and a lower rod, the upper rod is located above the lower rod, and the upper rod and the lower rod are elastically connected through the elastic telescopic rod.

[0008] The rear side of the upper rod is provided with a linkage rod, the linkage rod is fixed with the lower end of the electric telescopic rod, and the two ends of the linkage rod are fixed with the two ends of the lower rod.

[0009] Optionally, the damping structure comprises a vertical rod and an elastic clamping plate, the elastic clamping plate is fixed with the upper rod, and the upper end of the vertical rod is fixed with the seed box.

[0010] A plurality of triangular grooves are formed in the side of the vertical rod close to the upper rod, the inner walls of the upper and lower sides of the triangular grooves are symmetrical inclined surfaces, and the elastic clamping plate is located in the adjacent triangular grooves.

[0011] Optionally, the lower ends of the plurality of elastic soil distribution pieces are distributed in a multi-faceted conical shape, and the lower end of the discharging pipe is in contact with the elastic soil distribution pieces.

[0012] Optionally, the distribution structure comprises a conveying pipe and a fixed end disc, the upper end of the conveying pipe is fixedly inserted into the lower end of the seed box, the lower end surface of the conveying pipe is fixedly sleeved with a top arc plate, the back surface of the top arc plate is fixed with the fixed end disc, the outer surface of the fixed end disc is rotatably sleeved with an adjusting arc plate, and the adjusting arc plate is located below the top arc plate.

[0013] The adjusting arc plate and the top arc plate are concentrically arranged, the inner and outer diameters of the adjusting arc plate and the top arc plate are the same, the upper end of the distribution pipe is in sliding contact with the outer ring surface of the adjusting arc plate, and the back surface of the distribution pipe is fixed with the fixed end disc.

[0014] The adjusting arc plate and the top arc plate are rotatably inserted with a distribution ring column between the inner and outer ring surfaces thereof, a plurality of seed storage holes are formed in the outer ring surface of the distribution ring column, and a seed top rod is slidingly inserted into the inner side of the seed storage hole.

[0015] The seed top rod is elastically connected with the distribution ring column, the outer ring surface of the adjusting arc plate is provided with an axis hole below the distribution pipe, the axis of the axis hole is perpendicular to the axis of the distribution ring column, and the included angle between the upper right end of the adjusting arc plate and the right end of the top arc plate is equal to the included angle between the axis of the axis hole and the upper end axis of the distribution pipe.

[0016] Optionally, the seed top rod is coaxially fixed with a slotted cylinder at one end close to the axis of the distribution ring column, and the circumferential surface of the slotted cylinder is provided with symmetrically distributed groove structures.

[0017] The inner disc is coaxially arranged with the fixed end disc, and is located in the slot-shaped structure of the slotted cylinder.

[0018] Optionally, the front surface of the slotted cylinder is fixed with an end rod, the seed storage hole of the distribution ring column is provided with an opening structure matched with the end rod, the inner ring side of the distribution ring column is provided with a baffle, the upper surface extension surface of the baffle coincides with the axis of the distribution ring column and the upper end axis of the distribution pipe, and the distance between the outer ring surface of the baffle and the distribution ring column is greater than the diameter of the end rod.

[0019] The contact end of the distribution pipe and the adjusting arc plate is inclined to one side of the adjusting arc plate.

[0020] Optionally, the front surface of the distribution ring column is coaxially fixed with a linkage ring, the outer ring surface of the linkage ring is rotatably sleeved with a worm gear, and the upper side of the worm gear is engaged with a worm.

[0021] The outer ring surface of the linkage ring is provided with a tooth groove, a plurality of elastic push plates are fixed to the inner ring surface of the worm gear, and the other ends of the elastic push plates are located inside the adjacent tooth grooves.

[0022] The outer side of the seed box is rotatably installed with a power long shaft, and the worm is fixedly sleeved on the outer surface of the power long shaft.

[0023] Optionally, the adjusting arc plate is coaxially fixed with a friction wheel at one end of the rear side of the fixed end disc, a friction plate is arranged on the right side of the friction wheel, the upper rod is slidably sleeved on the outer surface of the friction plate, and the lower end surface of the friction plate is fixed with the lower rod.

[0024] In summary, the present application has the following beneficial technical effects:

[0025] 1. By arranging the distribution pipe, the elastic soil distribution piece, the telescopic frame structure and the discharging pipe, when the seedling tray filled with soil is pressed, the telescopic frame structure is controlled to move downward to drive the discharging pipe, the soil distribution rod and the elastic soil distribution piece to move downward, the plurality of elastic soil distribution pieces and the soil distribution rod distributed in a cone shape are inserted into the soil to form a concave space, then the telescopic frame structure is controlled to move upward, the upper telescopic end of the telescopic frame structure is delayed to move due to resistance, the lower telescopic end of the telescopic frame structure drives the soil distribution rod and the elastic soil distribution piece to move upward first, the discharging pipe is blocked by the damping structure to push the elastic soil distribution piece to deform, the lower end of the discharging pipe extends out of the elastic soil distribution piece, and the discharging pipe does not move out of the pressed hole to make the seeds in the discharging pipe fall into the pressed hole, so that the seeds are not fallen outside the pressed hole.

[0026] 2. The application sets up a distribution ring column, a distribution top rod, a slotted cylinder, an end rod and a baffle, etc. The seeds in the seed box fall into the conveying pipe, the worm engages with the worm wheel to drive the tooth groove through the elastic push plate to drive the linkage ring and the distribution ring column to rotate clockwise, the distribution ring column drives the seed storage hole to rotate to communicate with the conveying pipe, the seeds in the conveying pipe fall into the communicated seed storage hole, then the distribution ring column rotates to drive the elastic telescopic contact rod to slide on the surface of the inner disc, the non-notched part of the inner disc has a tendency to push the seed top rod away from the axis of the distribution ring column under the elastic telescopic contact rod, when there is no seed in the seed storage hole, the seed top rod is flush with the outer surface of the distribution ring column under the push of the elastic telescopic contact rod, the baffle does not block the end rod, when there is seed in the seed storage hole, the seed top rod cannot move to be flush with the outer surface of the distribution ring column, when the seed storage hole rotates to the position communicating with the conveying pipe, the baffle blocks the end rod, so that only the seed storage hole with seeds stays at the position communicating with the conveying pipe.

[0027] 3. The application sets up a friction plate and a friction wheel, etc. When the soil separating rod and the elastic soil separating piece are separated from the soil upwards, the friction plate is driven to move upwards, the friction plate drives the adjusting arc plate to rotate counterclockwise through the friction contact with the friction wheel, so that the axis hole communicates with the conveying pipe and the corresponding seed storage hole, the seed top rod lowers under the elastic connection with the distribution ring column to push the seeds into the conveying pipe through the axis hole, then the seeds fall into the pressed hole through the discharging pipe. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram in the embodiment of the application;

[0029] Figure 2 is the structure schematic diagram of the connection between the conveying pipe and the seed box in the embodiment of the application;

[0030] Figure 3 is the structure schematic diagram of the connection between the discharging pipe and the soil separating rod in the embodiment of the application;

[0031] Figure 4 is the structure schematic diagram of the connection between the triangular groove and the elastic clamping plate in the embodiment of the application;

[0032] Figure 5 is the structure schematic diagram of the connection between the discharging pipe and the soil separating rod in the embodiment of the application;

[0033] Figure 6 is the structure schematic diagram of the connection between the discharging pipe and the soil separating rod in the embodiment of the application;

[0034] Figure 7 is the structure schematic diagram of the connection between the discharging pipe and the soil separating rod in the embodiment of the application;

[0035] Figure 8is a structure diagram of the connection between the seed ejector rod and the seed storage hole in the embodiment of the present application;

[0036] Figure 9 is a structure diagram of the connection between the friction plate and the friction wheel in the embodiment of the present application;

[0037] Figure 10 is a structure diagram of the connection between the seed ejector rod and the elastic telescopic contact rod in the embodiment of the present application.

[0038] The drawings show that the device comprises intermittent conveying conveying structure 1, equipment frame 2 and seed box 3, intermittent conveying conveying structure 1 is provided with covering soil structure on both sides above seed box 3, respectively covering soil and putting seed into the seedling hole of the empty seedling tray, conveying structure 1 is connected with equipment frame 2, and seed box 3 is fixed on the top of conveying structure 1 and equipment frame 2. Specific embodiments

[0039] The following will be combined with the drawings Figures 1-10 The present application is further described in detail.

[0040] The embodiment of the present application discloses a seedling tray seeding device for agricultural seedling raising. Figures 1-10 As shown in the drawings, the device comprises intermittent conveying conveying structure 1, equipment frame 2 and seed box 3, intermittent conveying conveying structure 1 is provided with covering soil structure on both sides above seed box 3, respectively covering soil and putting seed into the seedling hole of the empty seedling tray, conveying structure 1 is connected with equipment frame 2, and seed box 3 is fixed on the top of conveying structure 1 and equipment frame 2.

[0041] The bottom of seed box 3 is provided with telescopic frame structure 5, and the telescopic frame structure 5 comprises upper rod 51 and lower rod 52.

[0042] The seed box 3 is fixed with an electric telescopic rod 4 at the bottom, the lower end of the electric telescopic rod 4 is connected with the telescopic frame structure 5, the rear side of the upper strip rod 51 is provided with a linkage rod 54, the linkage rod 54 is fixed with the lower end of the electric telescopic rod 4, the two ends of the linkage rod 54 are fixed with the two ends of the lower strip rod 52, and the electric telescopic rod 4 is driven to move synchronously with the lower strip rod 52 through the linkage rod 54 when the electric telescopic rod 4 is telescoped.

[0043] The telescopic frame structure 5 is provided with a damping structure 6 on both sides to apply resistance to the upper telescopic end of the telescopic frame structure 5, the upper end of the damping structure 6 is fixed with the seed box 3, the upper telescopic end of the telescopic frame structure 5 is connected with the damping structure 6, when the telescopic frame structure 5 moves upward, the telescopic frame structure 5 is first contracted and then moves upward relative to the damping structure 6, and the elasticity of the elastic telescopic rod 53 is smaller than the resistance of the damping structure 6 to the telescopic frame structure 5.

[0044] The damping structure 6 comprises a vertical rod 61 and an elastic clamping plate 62, the elastic clamping plate 62 is fixed with the upper strip rod 51, the upper end of the vertical rod 61 is fixed with the seed box 3, a plurality of triangular grooves 611 are formed in the side close to the upper strip rod 51 of the vertical rod 61, the inner walls of the upper and lower sides of the triangular grooves 611 are symmetrical inclined surfaces, the elastic clamping plate 62 is located inside the adjacent triangular grooves 611, the elastic clamping plate 62 is engaged with the triangular grooves 611 to apply resistance to the movement of the upper strip rod 51, and when the lower strip rod 52 is continuously moved upward after being compressed to the maximum extent, the elastic clamping plate 62 can be continuously separated from the inside of the triangular grooves 611 by being pushed by the upper strip rod 51 to be elastically bent.

[0045] A distribution pipe 7 is arranged below the seed box 3, a distribution structure 8 for distributing seeds is arranged in communication with the upper end of the distribution pipe 7, and the upper end of the distribution structure 8 is arranged in communication with the bottom surface of the seed box 3.

[0046] The distribution structure 8 comprises a transmission pipe 81 and a fixed end disc 82, the upper end of the transmission pipe 81 is fixedly inserted into the lower end of the seed box 3, a plurality of transmission pipes 81 are distributed at the lower end of the seed box 3, so that the bottom of the seed box 3 is not left, the upper end of the transmission pipe 81 is provided in a tapered table shape, and the seeds in the seed box 3 enter the inside through the upper end of the transmission pipe 81.

[0047] A top arc plate 83 is fixedly sleeved on the lower end surface of the transmission pipe 81, the back surface of the top arc plate 83 is fixed with the fixed end disc 82, a regulating arc plate 84 is rotatably sleeved on the outer surface of the fixed end disc 82, and the regulating arc plate 84 is located below the top arc plate 83.

[0048] The regulating arc plate 84 is concentrically arranged with the top arc plate 83, the inner and outer diameters of the regulating arc plate 84 and the top arc plate 83 are the same, the upper end of the distribution pipe 7 is in sliding contact with the outer ring surface of the regulating arc plate 84, the back surface of the distribution pipe 7 is fixed with the fixed end disc 82, and a gap exists between the right side of the regulating arc plate 84 and the top arc plate 83.

[0049] The adjusting arc plate 84 is coaxially fixed with a friction wheel 841 at one end of the rear side of the fixed end disc 82. The right side of the friction wheel 841 is provided with a friction plate 842. The upper strip rod 51 is slidingly sleeved on the outer surface of the friction plate 842. The lower end surface of the friction plate 842 is fixed with the lower strip rod 52. When the lower strip rod 52 moves downward, the friction plate 842 is driven to engage with the friction wheel 841, thereby driving the adjusting arc plate 84 to rotate clockwise. When the lower strip rod 52 moves upward, the friction plate 842 is driven to engage with the friction wheel 841, thereby driving the adjusting arc plate 84 to rotate counterclockwise.

[0050] The adjusting arc plate 84 is rotatably inserted between the inner annular surface of the top arc plate 83 and the seed storage ring column 85. The outer annular surface of the seed storage ring column 85 is provided with a plurality of seed storage holes 86. The inner side of the seed storage hole 86 is slidingly inserted with a seed top rod 87.

[0051] The seed top rod 87 is elastically connected with the seed storage ring column 85. The elastic connection between the seed top rod 87 and the seed storage ring column 85 is connected by a spring or other elastic member. The elastic connection between the seed top rod 87 and the seed storage ring column 85 has a tendency to drive the seed top rod 87 away from the axis of the seed storage ring column 85.

[0052] The seed top rod 87 is coaxially fixed with a slotted cylinder 89 at one end close to the axis of the seed storage ring column 85. The circumferential surface of the slotted cylinder 89 is provided with symmetrically distributed groove structures.

[0053] The inner disc 810 is provided at the axis of the seed storage ring column 85. The upper left circumferential surface of the inner disc 810 is notched. The inner disc 810 is coaxially arranged with the fixed end disc 82. The inner disc 810 is located in the groove structure of the slotted cylinder 89. When the seed storage ring column 85 drives the slotted cylinder 89 to rotate, the inner disc 810 rotates in the groove structure of the slotted cylinder 89. The slotted cylinder 89 is provided with an elastic expansion contact rod 811 at the axis. The elastic expansion contact rod 811 has a tendency to expand. The elasticity of the elastic expansion contact rod 811 is greater than the elasticity between the seed top rod 87 and the seed storage ring column 85. One end of the elastic expansion contact rod 811 is in sliding contact with the inner disc 810. The other end of the elastic expansion contact rod 811 is fixed with the seed top rod 87. When the seed storage hole 86 rotates to the upper side of the axis of the seed storage ring column 85 and is in a vertical state, the elastic expansion contact rod 811 is located at the notched position of the inner disc 810, so that the seeds in the seed storage tube 81 fall into the corresponding seed storage hole 86 connected in communication to the upper side of the seed top rod 87.

[0054] The outer ring surface of the adjusting arc plate 84 is provided with an axis hole 88 on the lower side of the distribution pipe 7, the axis of the axis hole 88 is perpendicular to the axis of the distribution ring column 85, the contact end of the distribution pipe 7 with the adjusting arc plate 84 is inclined to one side of the adjusting arc plate 84, the included angle between the right upper end of the adjusting arc plate 84 and the right end of the top arc plate 83 is equal to the included angle between the axis of the axis hole 88 and the upper end axis of the distribution pipe 7, when the right end of the adjusting arc plate 84 is in contact with the top arc plate 83, the axis hole 88 is in communication with the inclined end of the distribution pipe 7 and the corresponding seed storage hole 86, so that the seeds in the seed storage hole 86 fall into the distribution pipe 7 through the axis hole 88.

[0055] The front surface of the slotted cylinder 89 is fixed with an end rod 812, the distribution ring column 85 is provided with an opening structure at the seed storage hole 86, which is matched with the end rod 812, the inner ring side of the distribution ring column 85 is provided with a baffle 813, the upper surface extension surface of the baffle 813 coincides with the axis of the distribution ring column 85 and the upper end axis of the distribution pipe 7, the distance between the outer ring surface of the baffle 813 and the distribution ring column 85 is greater than the diameter of the end rod 812, after the elastic expansion contact rod 811 rotates away from the gap position of the inner disc 810, the elastic expansion contact rod 811 pushes the seed ejector rod 87 away from the axis of the distribution ring column 85, when there is no seed in the seed storage hole 86, the seed ejector rod 87 moves to be flush with the outer ring surface of the distribution ring column 85, the end rod 812 can pass through between the baffle 813 and the inner ring of the distribution ring column 85, so that the seed storage hole 86 without seeds does not stay in the position in communication with the upper end of the distribution pipe 7, when there is seed in the seed storage hole 86, the seed ejector rod 87 cannot move to the flush position of the outer ring surface of the distribution ring column 85, so that the end rod 812 is in contact with the baffle 813 when it rotates with the distribution ring column 85, at the same time, the corresponding elastic expansion contact rod 811 of the seed storage hole 86 with seeds is compressed under the pushing of the inner disc 810, when the axis hole 88 is in communication with the upper end of the distribution pipe 7 under the driving of the adjusting arc plate 84, the elastic expansion contact rod 811 pushes the seed ejector rod 87 to push the seeds in the seed storage hole 86 into the distribution pipe 7 through the axis hole 88.

[0056] The front surface of the distribution ring column 85 is coaxially fixed with a linkage ring 851, the outer ring surface of the linkage ring 851 is rotatably sleeved with a worm wheel 852, the upper side of the worm wheel 852 is engaged with a worm 853, the outer ring surface of the linkage ring 851 is provided with a tooth groove 854, the inner ring surface of the worm wheel 852 is fixed with a plurality of elastic push plates 855, the other end of the elastic push plate 855 is located inside the adjacent tooth groove 854.

[0057] The power long shaft 856 is rotatably installed outside the seed box 3, the seed box 3 is provided with a motor outputting power to the power long shaft 856, the worm 853 is fixedly sleeved on the outer surface of the power long shaft 856, the power long shaft 856 drives the worm 853 to rotate when rotating, the worm gear 852 is engaged with the worm 853, and the elastic push plate 855 is driven to rotate, the elastic push plate 855 drives the linkage ring 851 and the distribution ring column 85 to rotate through engagement with the tooth groove 854, and the elastic push plate 855 is dislocated with the tooth groove 854 through elastic bending when the end rod 812 is in contact with the upper surface of the baffle 813 and the worm gear 852 continues to rotate.

[0058] The lower end of the distribution pipe 7 is slidably inserted with the lower pipe 9, the lower pipe 9 is fixed on the upper telescopic end of the telescopic frame structure 5, the lower end of the lower pipe 9 is slidably sleeved with the soil distribution rod 10, the back surface of the soil distribution rod 10 is fixed on the lower telescopic end of the telescopic frame structure 5, and the bottom surface of the soil distribution rod 10 is provided with a plurality of elastic soil distribution pieces 11, the lower ends of the plurality of elastic soil distribution pieces 11 are distributed in a multi-faceted conical shape, the soil distribution rod 10 and the elastic soil distribution pieces 11 are moved downward, the soil distribution rod 10 and the elastic soil distribution pieces 11 are inserted into the soil to press out the grooves, the lower end of the lower pipe 9 is in contact with the elastic soil distribution pieces 11, in the process that the lower rod 52 moves upward to compress the elastic telescopic rod 53, the elastic soil distribution pieces 11 move upward with the soil distribution rod 10, the lower pipe 9 pushes the upwardly moving elastic soil distribution pieces 11 to elastically deform, the lower pipe 9 extends out from below the elastic soil distribution pieces 11, and the seeds in the lower pipe 9 can fall into the pressed grooves, and the total elasticity of the elastic soil distribution pieces 11 and the elastic telescopic rod 53 is smaller than the elasticity of the elastic clamping plate 62, so that the lower pipe 9 can only push the elastic clamping plate 62 to elastically bend after pushing out the elastic soil distribution pieces 11.

[0059] The working principle is that the seedling tray is placed above the intermittent conveying structure 1, the intermittent conveying structure 1 drives the seedling tray to move, after the seedling tray is covered with soil, the intermittent conveying structure 1 drives the seedling tray to move to the lower side of the soil distribution rod 10 and the elastic soil distribution pieces 11, the electric telescopic rod 4 controls the telescopic frame structure 5 to move downward, the telescopic frame structure 5 drives the lower pipe 9, the soil distribution rod 10 and the elastic soil distribution pieces 11 to move downward, the plurality of elastic soil distribution pieces 11 and the soil distribution rod 10 are inserted into the soil after moving downward, so that the soil forms a recessed space, then the electric telescopic rod 4 controls the telescopic frame structure 5 to move upward again, the telescopic frame structure 5 moves upward with a delay under the resistance of the damping structure 6, the lower telescopic end of the telescopic frame structure 5 drives the soil distribution rod 10 and the elastic soil distribution pieces 11 to move upward first, the lower pipe 9 pushes the elastic soil distribution pieces 11 to deform under the block of the damping structure 6, the lower end of the lower pipe 9 extends out of the elastic soil distribution pieces 11, and the lower pipe 9 makes the seeds in the inside fall into the pressed holes without moving out of the pressed holes.

[0060] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A seedling tray sowing device for agricultural seedling raising, comprising an intermittent conveying structure (1), an equipment frame (2), and a seed box (3), wherein the conveying structure (1) is connected to the equipment frame (2), and the seed box (3) is located above the conveying structure (1) and fixed to the equipment frame (2), characterized in that: A telescopic frame structure (5) is provided below the seed box (3). An electric telescopic rod (4) is fixed on the bottom surface of the seed box (3). The lower end of the electric telescopic rod (4) is connected to the lower telescopic end of the telescopic frame structure (5). A damping structure (6) is provided on both sides of the telescopic frame structure (5) to apply resistance to the upper telescopic end of the telescopic frame structure (5). The upper end of the damping structure (6) is fixed to the seed box (3). The upper telescopic end of the telescopic frame structure (5) is connected to the damping structure (6). A distribution pipe (7) is provided below the seed box (3). A distribution structure (8) for distributing seeds is connected to the upper end of the distribution pipe (7). The upper end of the distribution structure (8) is connected to the bottom surface of the seed box (3). A feeding pipe (9) is slidably inserted into the lower end of the distribution pipe (7). The feeding pipe (9) is fixed to the upper telescopic end of the telescopic frame structure (5). A soil dividing rod (10) is slidably sleeved at the lower end of the feeding pipe (9). The back of the soil dividing rod (10) is fixed to the lower telescopic end of the telescopic frame structure (5). Multiple elastic soil dividing plates (11) are installed on the bottom surface of the soil dividing rod (10). The telescopic frame structure (5) includes an upper bar (51) and a lower bar (52). The upper bar (51) is located above the lower bar (52), and the upper bar (51) and the lower bar (52) are elastically connected by an elastic telescopic bar (53). A linkage rod (54) is provided on the rear side of the upper bar (51). The linkage rod (54) is fixed to the lower end of the electric telescopic rod (4), and the two ends of the linkage rod (54) are fixed to the two ends of the lower bar (52). The material distribution structure (8) includes a material transfer pipe (81) and a fixed end plate (82). The upper end of the material transfer pipe (81) is fixedly inserted into the lower end of the seed box (3). A top arc plate (83) is fixedly sleeved on the lower end face of the material transfer pipe (81). The back of the top arc plate (83) is fixed to the fixed end plate (82). An adjusting arc plate (84) is rotatably sleeved on the outer surface of the fixed end plate (82). The adjusting arc plate (84) is located below the top arc plate (83). The adjusting arc plate (84) and the top arc plate (83) are concentrically arranged. The inner and outer diameters of the adjusting arc plate (84) and the top arc plate (83) are the same. The upper end of the material distribution pipe (7) slides in contact with the outer ring surface of the adjusting arc plate (84). The back of the material distribution pipe (7) is fixed to the fixed end plate (82). A material distribution ring column (85) is rotatably inserted between the inner ring surface of the adjusting arc plate (84) and the top arc plate (83). Multiple seed storage holes (86) are opened on the outer ring surface of the material distribution ring column (85). A seed top rod (87) is slidably inserted into the inner side of the seed storage hole (86). The seed top rod (87) is elastically connected to the material distribution ring column (85). The outer ring surface of the adjusting arc plate (84) is provided with an axis hole (88) located on the lower side of the material distribution pipe (7). The axis of the axis hole (88) intersects perpendicularly with the axis of the material distribution ring column (85). The angle between the upper right end of the adjusting arc plate (84) and the right end of the top arc plate (83) is equal to the angle between the axis of the axis hole (88) and the upper axis of the material distribution pipe (7). The seed top rod (87) is coaxially fixed with a slotted cylinder (89) at one end near the axis of the material distribution ring column (85). The circumferential surface of the slotted cylinder (89) is provided with symmetrically distributed slotted structures. An inner disc (810) is provided at the axis of the material distribution ring column (85). The upper left circumferential surface of the inner disc (810) is notched. The inner disc (810) is coaxially arranged with the fixed end disc (82). The inner disc (810) is located in the groove structure of the slotted cylinder (89). An elastic telescopic contact rod (811) is provided at the axis of the slotted cylinder (89). One end of the elastic telescopic contact rod (811) slides in contact with the inner disc (810), and the other end of the elastic telescopic contact rod (811) is fixed to the seed top rod (87).

2. The seedling tray sowing device for agricultural seedling raising according to claim 1, characterized in that: The damping structure (6) includes a pole (61) and an elastic plate (62). The elastic plate (62) is fixed to the upper bar (51), and the upper end of the pole (61) is fixed to the seed box (3). The upright (61) has multiple triangular grooves (611) on the side near the upper bar (51). The inner walls of the upper and lower sides of the triangular groove (611) are symmetrical inclined surfaces, and the elastic plate (62) is located inside the adjacent triangular groove (611).

3. The seedling tray sowing device for agricultural seedling raising according to claim 2, characterized in that: Multiple elastic soil dividing plates (11) are distributed in a multi-faceted conical shape at their lower ends, and the lower end of the feed pipe (9) is set in contact with the elastic soil dividing plates (11).

4. The seedling tray sowing device for agricultural seedling raising according to claim 1, characterized in that: The slotted cylinder (89) has an end rod (812) fixed on its front side. The material distribution ring column (85) has an opening structure that matches the end rod (812) at the seed storage hole (86). A baffle (813) is provided on the inner ring side of the material distribution ring column (85). The upper surface extension surface of the baffle (813) coincides with the axis of the material distribution ring column (85) and the upper end axis of the material distribution tube (7). The distance between the outer ring surface of the baffle (813) and the material distribution ring column (85) is greater than the diameter of the end rod (812). The end of the material distribution pipe (7) that contacts the adjusting arc plate (84) is inclined toward the adjusting arc plate (84).

5. The seedling tray sowing device for agricultural seedling raising according to claim 4, characterized in that: The material distribution ring column (85) is coaxially fixed with a linkage ring (851) on the front side. A worm wheel (852) is rotatably sleeved on the outer ring surface of the linkage ring (851). A worm (853) is meshed on the upper side of the worm wheel (852). The outer ring of the linkage ring (851) is provided with a tooth groove (854), and a plurality of elastic levers (855) are fixed on the inner ring of the worm gear (852). The other end of the elastic lever (855) is located inside the adjacent tooth groove (854). The seed box (3) is rotatably mounted on the outside of a power shaft (856), and a worm gear (853) is fixedly sleeved on the outer surface of the power shaft (856).

6. The seedling tray sowing device for agricultural seedling raising according to claim 1, characterized in that: The adjusting arc plate (84) is located on the rear side of the fixed end plate (82) and a friction wheel (841) is coaxially fixed thereon. A friction plate (842) is provided on the right side of the friction wheel (841). The upper bar (51) is slidably sleeved on the outer surface of the friction plate (842). The lower end face of the friction plate (842) is fixed to the lower bar (52).

Images