High-precision single-seed sowing equipment for wheat breeding

Abstract

The utility model discloses high-precision single-grain seeding equipment for wheat breeding, which relates to the technical field of high-precision single-grain seeding equipment for wheat breeding and comprises a moving trolley, a seeding frame is mounted on the surface of the moving trolley, and a transmission hose is fixedly connected to the bottom of the seeding frame. By rotating the adjusting screw rod, the adjusting screw rod can be driven to move on the moving block, the seed-metering rod can be pulled to slide on the rack plate, the seeding height and depth of the plurality of seeding mechanisms can be adjusted, and by rotating each rotating screwing block, the seed-metering rod can be pulled to slide on the surface of the rack plate, and the seeding spacing can be adjusted; according to the seeding device, the position of the seeding rod can be supported, the height of the seeding rod and the seeding height and the seeding distance of the seeding mechanism can be adjusted by arranging the adjusting screw rod and the threaded rod, the ground with different heights can be sown at the same time, and the time of repeated back-and-forth movement in the seeding process is saved; and troubles and inconvenience in operation caused by back-and-forth seeding are also reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of high-precision single-seed sowing equipment for wheat breeding, specifically to a high-precision single-seed sowing equipment for wheat breeding. Background Technology

[0002] Wheat is my country's second largest staple food crop, playing a crucial role in ensuring national food security and the national economy. Spring wheat is one of Ningxia's specialty crops, occupying an important position in Ningxia's agricultural production and economy. Improving wheat varieties can increase wheat yield per unit area, thereby playing a vital role in increasing total wheat production.

[0003] The current publication number CN113079764B discloses a high-precision single-seed sowing device for spring wheat breeding, including a sowing chamber, two sets of roller frames at the bottom of the sowing chamber, a turntable rotatably connected near the top of the sowing chamber, a brake motor for rotating the turntable fixed on the outside of the sowing chamber, a vertical rod rotatably connected to the outer circumference of the turntable, a seed-collecting block movably connected to the bottom of the vertical rod, the seed-collecting block and the vertical rod being connected by a micro cylinder, a seed discharge cylinder connected to the outside of the sowing chamber fixed on the side, and a controller. In use, the turntable rotates to drive the seed-collecting block at the bottom of the vertical rod to collect a single seed. Then the seed-collecting block tilts to pour the seed into the seed discharge cylinder. Then the controller controls the micro electronic gate valve to open and let the single seed fall through the seed discharge cylinder to the sowing position to complete the sowing. At the same time, an infrared counter counts the results. It can complete the equidistant sowing of single spring wheat seeds, reduce manual input, and is economical and practical.

[0004] To address the wheat sowing problem in the aforementioned solutions, existing technologies employ a rotating turntable that drives a single-seed picking block at the bottom of a vertical rod. The picking block then tilts to pour the seed into a discharge cylinder, and a controller opens a micro-electronic gate valve to allow the single seed to fall through the discharge cylinder to the sowing position. However, this method still presents challenges due to varying terrain heights, making sowing inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision single-seed sowing device for wheat breeding, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A high-precision single-seed sowing device for wheat breeding includes a mobile vehicle, a sowing frame mounted on the surface of the mobile vehicle, a transmission hose fixedly connected to the bottom of the sowing frame, a guide pipe mounted on one end of the transmission hose, a sowing mechanism mounted on one end of the guide pipe, and an adjustment mechanism mounted on one end of the guide pipe.

[0008] The sowing mechanism includes a seed supply box and a cover. The cover is fixedly connected to the surface of the guide tube. One end of the cover is snapped into the bottom of the seed supply box, where a seed metering disc is installed. A coupling is fixedly connected to one side of the seed metering disc. A discharge port is fixedly connected to the bottom of the seed metering disc. A drive motor is driven to the surface of the coupling.

[0009] The adjustment mechanism includes an adjustment frame fixedly connected to the surface of the moving vehicle, a plurality of moving blocks slidably connected to the surface of the adjustment frame, and an adjustment screw threadedly connected to the surface of the moving blocks.

[0010] A further improvement of this utility model is that: an annular plate is installed inside the seed metering tray, and a seed protection groove plate is tangent to the surface of the annular plate. The seed protection groove plate is installed inside the seed metering tray, and a placement part is provided on the surface of the seed protection groove plate. The seed protection groove plate is threadedly connected to the outer surface of the seed supply box.

[0011] A further improvement of this utility model is that: a negative pressure air vent is provided on one side of the seed metering disc, and a rubber roller is rotatably connected to the inner side of the seed metering disc. The rubber roller is located above the discharge port. During seed metering, the filling hole blocked by the rubber roller can be combined with a spring plate to discharge wheat seeds from the filling disc.

[0012] A further improvement of this utility model is that the placement component includes an adsorption hole and a seed filling hole, both of which are opened on the surface of the seed protection trough plate. A spring sheet is installed on the surface of the seed filling hole, and a soft sponge is fixedly connected to the surface of the spring sheet. A soft sponge is fixed on the side of the wheat seed spring sheet away from the adsorption hole, and the soft sponge can avoid damaging the wheat seed.

[0013] A further improvement of this utility model is that: one end of the adjusting screw is threadedly connected to a seed metering rod, and the surface of the seed metering rod is provided with an adjusting through groove. Rotating the adjusting screw can drive the adjusting screw to move on the moving block and pull the seed metering rod to slide on the adjusting frame.

[0014] A further improvement of this utility model is that: a threaded rod is vertically arranged on the surface of the adjusting groove, and a rotating screw block is threadedly connected to the surface of the threaded rod. By adjusting the position of the rotating screw block on the surface of the threaded rod, the spacing of the seeding mechanism can be changed.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides a high-precision single-seed sowing device for wheat breeding. Rotating the adjusting screw can move the adjusting screw on the moving block, pulling the seed metering rod to slide on the frame plate, adjusting the sowing height and depth of multiple sowing mechanisms. Rotating each rotating screw block can pull the seed metering rod to slide on the surface of the frame plate, adjusting the sowing spacing. By setting an adjusting frame, the position of the seed metering rod can be supported. By setting the adjusting screw and threaded rod, the height and depth of the seed metering rod can be adjusted. By adjusting the position of the rotating screw block on the surface of the threaded rod, the sowing spacing of the sowing mechanism can be changed. According to different sowing conditions of reducing ridges and increasing land area, the sowing height and sowing spacing of the sowing mechanism can be adjusted, and sowing can be carried out on ground with different heights at the same time, saving the time of repeated back-and-forth movement during the sowing process, and reducing the trouble and inconvenience caused by back-and-forth sowing.

[0017] 2. This utility model provides a high-precision single-seed sowing device for wheat breeding. Wheat seeds fall from the seed supply box onto an annular plate. The seed filling hole allows for single-seed sowing. Simultaneously, the drive motor rotates the seed metering disc and the annular plate, carrying the filled wheat seeds downwards for sowing. During this process, an external negative pressure device connected to the sowing mechanism creates negative pressure in the negative pressure zone. The filled wheat seeds are tightly adsorbed through the adsorption hole, effectively preventing seed leakage. When a filled seed filling hole rotates to a position above the discharge port, the rubber roller blocks the adsorption hole, breaking the negative pressure zone. The single seed in that filling hole can then fall and be discharged through the discharge port under gravity, completing the seed metering operation and achieving the effect of precise single-seed sowing of wheat seeds. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the cap of this utility model;

[0021] Figure 4 This is a schematic diagram of the sowing mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the placement component of this utility model.

[0023] In the diagram: 1. Mobile vehicle; 2. Seeding frame; 3. Adjustment mechanism; 30. Adjustment frame; 31. Moving block; 32. Screw rod; 33. Seed metering rod; 34. Threaded rod; 35. Rotating screw block; 36. Adjustment slot; 5. Transmission hose; 7. Guide pipe; 8. Seeding mechanism; 80. Seed supply box; 81. Cover; 82. Drive motor; 83. Seed metering disc; 84. Coupling; 85. Discharge port; 86. Annular plate; 87. Seed trough plate; 88. Placement component; 880. Adsorption hole; 881. Spring plate; 882. Soft sponge; 883. Seed filling hole; 89. Trough plate; 891. Rubber roller; 892. Negative pressure air outlet. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] Example 1

[0026] like Figure 1-5 As shown, this utility model provides a high-precision single-seed sowing device for wheat breeding, including a mobile cart 1. A sowing frame 2 is mounted on the surface of the mobile cart 1. A transmission hose 5 is fixedly connected to the bottom of the sowing frame 2. A guide pipe 7 is installed at one end of the transmission hose 5. A sowing mechanism 8 is installed at one end of the guide pipe 7. An adjustment mechanism 3 is installed at one end of the guide pipe 7. The sowing mechanism 8 includes a seed supply box 80 and a cover 81. The cover 81 is fixedly connected to the surface of the guide pipe 7. One end of the cover 81 is snapped into the bottom of the seed supply box 80. A seed metering disc 83 is mounted on the bottom of the seed metering disc 83. A coupling 84 is fixedly connected to one side of the seed metering disc 83. A discharge port 85 is fixedly connected to the bottom of the seed metering disc 83. A drive motor 82 is drivenly connected to the surface of the coupling 84. An annular plate 86 is installed inside the seed metering tray 83. A seed protection trough plate 87 is tangent to the surface of the annular plate 86. The seed protection trough plate 87 is installed inside the seed protection trough plate 89. The seed protection trough plate 89 is installed inside the seed metering tray 83. A placement component 88 is provided on the surface of the seed protection trough plate 87. A negative pressure air vent 892 is provided on one side of the seed metering tray 83. A rubber roller 891 is rotatably connected to the inner side of the seed metering tray 83. The rubber roller 891 is located above the discharge port 85. The placement component 88 includes an adsorption hole 880 and a seed filling hole 883. Both the adsorption hole 880 and the seed filling hole 883 are opened on the surface of the seed protection trough plate 87. A spring sheet 881 is installed on the surface of the seed filling hole 883. A soft sponge 882 is fixedly connected to the surface of the spring sheet 881.

[0027] Specifically, wheat seeds fall from the seed supply box 80 onto the annular plate 86. The seed filling hole 883 allows for individual seed filling. Simultaneously, the drive motor 82 rotates the seed discharging disc 83 and the annular plate 86, carrying the filled wheat seeds downwards for sowing. During this process, an external negative pressure device connected to the sowing mechanism 8 creates negative pressure within the negative pressure zone. The filled wheat seeds are tightly adsorbed through the adsorption hole 880, effectively preventing seed leakage. When a filled seed filling hole 883 rotates to a position above the discharge port 85, the rubber roller 891 will block the adsorption hole 880, disconnecting the negative pressure zone. The single peanut seed in the filling hole 883 can fall and be discharged through the discharge port 85 under the action of gravity, completing the seed discharging operation. The protective groove plate 89 is threadedly connected to the outer surface of the seed supply box 80. The spring plate 881 can prevent wheat seeds from getting stuck or being sucked into the adsorption hole 880 during filling. On the other hand, the filling hole 883 blocked by the rubber roller 891 during seed discharging can be discharged from the filling plate by the spring plate 881 and fall into the lower discharge port 85. A soft sponge 882 is fixed on the side of the wheat seed spring plate 881 away from the adsorption hole 880. The soft sponge 882 can prevent damage to the wheat seeds.

[0028] Example 2

[0029] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the adjustment mechanism 3 includes an adjustment frame 30 fixedly connected to the surface of the moving vehicle 1, a plurality of moving blocks 31 slidably connected to the surface of the adjustment frame 30, an adjustment screw 32 threadedly connected to the surface of the moving blocks 31, a seed metering rod 33 threadedly connected to one end of the adjustment screw 32, an adjustment through groove 36 opened on the surface of the seed metering rod 33, a threaded rod 34 vertically arranged on the surface of the adjustment through groove 36, and a rotating screw block 35 threadedly connected to the surface of the threaded rod 34.

[0030] Specifically, rotating the adjusting screw 32 moves it on the moving block 31, pulling the seed metering rod 33 to slide on the adjusting frame 30, thus adjusting the seeding height and depth of multiple seeding mechanisms 8. Rotating each rotating screw block 35 pulls the seed metering rod 33 to slide on the surface of the adjusting frame 30, adjusting the seeding spacing. The adjusting frame 30 supports the position of the seed metering rod 33. The adjusting screw 32 and threaded rod 34 adjust the height and depth of the seed metering rod 33. Adjusting the position of the rotating screw block 35 on the surface of the threaded rod 34 changes the seeding spacing of the seeding mechanism 8. Depending on the seeding situation of reducing ridges and increasing land area, adjusting the seeding height and seeding spacing of the seeding mechanism 8 allows for simultaneous seeding of ground at different heights, saving time spent repeatedly moving back and forth during the seeding process and reducing the trouble and inconvenience caused by repeated seeding.

[0031] The working principle of this high-precision single-seed sowing equipment for wheat breeding will be explained in detail below.

[0032] like Figure 1-5 As shown, wheat seeds are poured into the sowing frame 2 and transported via a conveying hose 5 and a guide pipe 7 to the sowing mechanism 8. The seeds fall from the seed supply box 80 onto the annular plate 86. The filling hole 883 allows for individual seed filling. Simultaneously, the drive motor 82 rotates the seed metering disc 83 and the annular plate 86, carrying the filled seeds downwards for sowing. During this process, an external negative pressure device connected to the sowing mechanism 8 creates negative pressure within the negative pressure zone. The adsorption hole 880 tightly adsorbs the filled wheat seeds, effectively preventing seed leakage. When a filled seed hole 883 rotates to a position above the discharge port 85, the rubber roller 891 blocks the adsorption hole 880, disconnecting the negative pressure zone. The individual seeds in that filled seed hole 883 can then fall through the discharge port 85 under gravity, completing the seed metering operation. Rotating the adjusting screw 32 moves it on the moving block 31, pulling the seed metering rod 33 to slide on the adjusting frame 30, thus adjusting the sowing height and depth of multiple sowing mechanisms 8. Rotating each rotating screw block 35 pulls the seed metering rod 33 to slide on the surface of the adjusting frame 30, adjusting the sowing spacing. The adjusting frame 30 supports the position of the seed metering rod 33. The adjusting screw 32 and threaded rod 34 adjust the height and depth of the seed metering rod 33. Adjusting the position of the rotating screw block 35 on the surface of the threaded rod 34 changes the sowing spacing of the sowing mechanism 8. Depending on the sowing situation of reducing ridges and increasing land area, adjusting the sowing height and sowing spacing of the sowing mechanism 8 allows for simultaneous sowing on ground of different heights, saving time spent repeatedly moving back and forth during the sowing process and reducing the trouble and inconvenience caused by repeated sowing.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high-precision single-seed sowing device for wheat breeding, comprising a mobile vehicle (1), characterized in that: The surface of the mobile vehicle (1) is equipped with a seeding frame (2), and a transmission hose (5) is fixedly connected to the bottom of the seeding frame (2). A guide pipe (7) is installed at one end of the transmission hose (5), a seeding mechanism (8) is installed at one end of the guide pipe (7), and an adjustment mechanism (3) is installed at one end of the guide pipe (7). The sowing mechanism (8) includes a seed supply box (80) and a cover (81). The cover (81) is fixedly connected to the surface of the guide tube (7). One end of the cover (81) is snapped into the bottom of the seed supply box (80), and a seed metering disc (83) is installed thereon. A coupling (84) is fixedly connected to one side of the seed metering disc (83). A discharge port (85) is fixedly connected to the bottom of the seed metering disc (83). A drive motor (82) is driven to the surface of the coupling (84). The adjustment mechanism (3) includes an adjustment frame (30) fixedly connected to the surface of the moving vehicle (1), and a plurality of moving blocks (31) are slidably connected to the surface of the adjustment frame (30), and an adjustment screw (32) is threadedly connected to the surface of the moving blocks (31).

2. The high-precision single-seed sowing device for wheat breeding according to claim 1, characterized in that: The seed metering tray (83) is equipped with an annular plate (86) inside. The surface of the annular plate (86) is tangent to a seed protection trough plate (87). The seed protection trough plate (87) is installed inside a seed protection trough plate (89). The seed protection trough plate (89) is installed inside the seed metering tray (83). The surface of the seed protection trough plate (87) is provided with a placement member (88).

3. The high-precision single-seed sowing device for wheat breeding according to claim 2, characterized in that: A negative pressure air vent (892) is provided on one side of the seed metering disc (83), and a rubber roller (891) is rotatably connected to the inner side of the seed metering disc (83). The rubber roller (891) is located above the discharge port (85).

4. The high-precision single-seed sowing device for wheat breeding according to claim 3, characterized in that: The placement component (88) includes an adsorption hole (880) and a seed filling hole (883). Both the adsorption hole (880) and the seed filling hole (883) are opened on the surface of the seed protection trough plate (87). A spring sheet (881) is installed on the surface of the seed filling hole (883). A soft sponge (882) is fixedly connected to the surface of the spring sheet (881).

5. The high-precision single-seed sowing device for wheat breeding according to claim 1, characterized in that: One end of the adjusting screw (32) is threadedly connected to a seed metering rod (33), and the surface of the seed metering rod (33) is provided with an adjusting through groove (36).

6. The high-precision single-seed sowing device for wheat breeding according to claim 5, characterized in that: The surface of the adjusting channel (36) is vertically provided with a threaded rod (34), and the surface of the threaded rod (34) is threadedly connected with a rotating screw block (35).

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