Pneumatic seeder with adjustable seeding spacing

Abstract

The utility model discloses a pneumatic seeder with adjustable seeding spacing, which comprises a pneumatic seeder main body, a filter box is clamped at the upper end of the pneumatic seeder main body, a filter component for filtering seeds is mounted in the filter box, and a drying component for filtering water of the seeds is slidably connected in the filter component. When the seed filtering device is used, the seeds are poured into the filtering box along the material guiding pipe and then fall into the first filtering plate, the second filtering plate and the storage box, and then the seeds are filtered through the fact that the diameters of filtering holes in the first filtering plate and the second filtering plate are different. The filter plate I and the filter plate II are arranged, so that the filter plate I and the filter plate II are used for carrying out multi-time layered filtration on the seeds, and the phenomenon that some seeds with irregular shapes and large size differences, such as carrots and celeries, possibly have the phenomena of infirm adsorption, missing adsorption or excessive adsorption, resulting in inaccurate seeding spacing is avoided, and thus the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, specifically a pneumatic seeder with adjustable seeding spacing. Background Technology

[0002] Pneumatic seeders are widely used in modern agriculture due to their high efficiency and precision. However, traditional equipment has significant drawbacks when sowing irregularly shaped seeds (such as carrots and celery): large differences in seed size and rough surfaces can easily lead to clogging of the air suction holes or unstable adsorption, resulting in a single seed rate of less than 60% and a missed seeding and double seeding rate as high as 20% to 30%, which seriously affects the uniformity of sowing and the consistency of crop growth. Existing technologies mostly use a single filter (fixed pore size) for pre-screening, but it cannot effectively separate seeds with large differences in particle size (such as carrot seeds with a particle size of 0.8-2mm mixed together). This causes small-diameter seeds to be missed and large-diameter seeds to get stuck when the air suction cup is adsorbed, resulting in a sowing spacing fluctuation of more than ±30%. In addition, frequent machine stops to clean the filter (3-5 times per hectare) greatly reduce the efficiency of operation.

[0003] Therefore, this utility model provides a pneumatic seeder with adjustable sowing spacing to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic seeder with adjustable sowing spacing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pneumatic seeder with adjustable sowing spacing includes a pneumatic seeder body, a filter box is snapped onto the upper end of the pneumatic seeder body, a filter assembly for filtering seeds is installed inside the filter box, a drying assembly for filtering water from seeds is slidably connected inside the filter assembly, and a cleaning assembly for pushing seeds to move inside the filter assembly is rotatably connected to the bottom of the inner wall of the filter assembly.

[0007] As a further embodiment of this utility model, the filter assembly includes a first filter plate and a second filter plate. The first filter plate is installed inside the filter box, and the second filter plate is rotatably connected inside the filter box. Two sets of baffles are slidably connected to the upper surface of the second filter plate.

[0008] As a further embodiment of this utility model, the drying assembly includes two sets of warm air blowers, which are respectively installed inside the two sets of baffles.

[0009] As a further embodiment of this utility model, the cleaning component includes two sets of connecting blocks. The connecting blocks are installed on the side of the baffle near the filter plate's second filter hole, and a cleaning bucket is rotatably connected to the front of the connecting blocks.

[0010] As a further improvement of this utility model, a protective cover is installed on the side of the two sets of baffles near the filter holes of the filter plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In use, seeds are poured into the filter box along the feed pipe and fall into the filter plate 1, filter plate 2, and storage box. The different pore sizes of the filter plates 1 and 2 allow for multiple layers of filtration. The motor rotates the filter plate 2 inside the filter box, causing the seeds accumulated on the upper part of the filter plate 2 to fall into the pneumatic seeder body, thus completing the filtration of the seeds. This avoids the phenomenon of poor adsorption, leakage, or over-adsorption of irregularly shaped or large-sized seeds, such as carrots and celery, which may lead to inaccurate sowing spacing. Therefore, the practicality of the device is improved.

[0013] 2. In use, this utility model involves activating two sets of heaters to blow out warm air. The filter plate is then installed in the airflow path of the two heaters, allowing the warm air to drain the moisture accumulated on the outer surface of the seeds at the upper end of the filter plate, thus preventing excessive seed sticking. Furthermore, the filter plate is positioned directly above the two heaters, causing the heaters to blow the seeds accumulated inside the filter holes of the filter plate upwards during startup, minimizing blockage within the filter plate and thus improving the filtration efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of a pneumatic seeder with adjustable sowing spacing.

[0015] Figure 2 This is a schematic diagram of the side structure of a pneumatic seeder with adjustable sowing spacing.

[0016] Figure 3 This is a schematic diagram of the front structure of the filter box in a pneumatic seeder with adjustable sowing spacing.

[0017] Figure 4 This is a front structural diagram of a filter component in a pneumatic seeder with adjustable seeding spacing.

[0018] Figure 5This is a front structural diagram of the cleaning component in a pneumatic seeder with adjustable seeding spacing.

[0019] Figure 6 This is a schematic diagram of the top structure of the filter box in a pneumatic seeder with adjustable sowing spacing.

[0020] In the diagram: 1. Main body of the pneumatic seeder; 2. Filter box; 3. Acrylic sheet; 4. Protective cover; 5. Feed guide pipe; 6. Drying assembly; 601. Warm air blower; 602. Annular filter screen; 7. Filter assembly; 701. Storage box; 702. Filter plate one; 703. Filter plate two; 704. Baffle; 705. Electric telescopic rod; 706. Motor; 8. Protective cover; 9. Cleaning assembly; 901. Connecting block; 902. Rotating rod; 903. Cleaning bucket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-6 In this embodiment of the present invention, a pneumatic seeder with adjustable sowing spacing includes a pneumatic seeder body 1.

[0023] A filter box 2 is attached to the upper end of the pneumatic seeder body 1. Inside the filter box 2 is a filter assembly 7 for filtering seeds. A drying assembly 6 for filtering water from the seeds is slidably connected inside the filter assembly 7. A cleaning assembly 9, which pushes the seeds within the filter assembly 7, is rotatably connected to the bottom of the inner wall of the filter assembly 7. A protective cover 4 is attached to the top of the filter box 2, and a guide pipe 5 is installed on the upper end of the protective cover 4. A slot is provided on the front of the filter box 2, and an acrylic plate 3 is installed inside the slot. Specifically, the filter assembly 7 and the filter box 2 filter the seeds introduced into the feed inlet of the pneumatic seeder body 1, thus avoiding the phenomenon of insecure adsorption, missed adsorption, or over-adsorption of irregularly shaped or differently sized seeds, such as carrots and celery, which could lead to inaccurate sowing spacing. This improves the practicality of the device.

[0024] The filter assembly 7 includes a first filter plate 702 and a second filter plate 703. The first filter plate 702 is installed inside the filter box 2, and the second filter plate 703 is rotatably connected inside the filter box 2. Two sets of baffles 704 are slidably connected to the upper surface of the second filter plate 703. The side of the two sets of baffles 704 away from the filter holes of the second filter plate 703 abuts against the inner walls of the left and right sides of the filter box 2, respectively. Two sets of slots are opened on the upper surface of the second filter plate 703. An electric telescopic rod 705 is installed inside each of the two sets of slots of the second filter plate 703. The baffles 704 are slidably connected inside the slots of the second filter plate 703. The output end of the electric telescopic rod 705 is installed on the side of the baffle 704 near the filter holes of the second filter plate 703. A motor 706 is installed on the back of the filter box 2. A groove is opened on the inner wall of the back of the filter box 2. The second filter plate 703 is rotatably connected inside the groove of the filter box 2. The output shaft of the motor 706 passes through the groove inside the filter box 2 and is installed on the back of the second filter plate 703.

[0025] Specifically, the seeds are poured along the feed pipe 5 into the filter box 2 and then fall into the filter plate 702, filter plate 703, and storage box 701. The different pore sizes of the filter plates 702 and 703 allow for multiple layers of filtration. The motor 706 rotates the filter plate 703 inside the filter box 2, causing the evenly distributed seeds accumulated on the upper part of the filter plate 703 to fall into the pneumatic seeder body 1. This completes the filtration of the seeds and prevents irregularly shaped or unevenly sized seeds, such as carrots and celery, from being filtered. The device improves its practicality by preventing issues such as weak adsorption, missed adsorption, or excessive adsorption, which can lead to inaccurate sowing spacing. When the filter assembly 7 is filtering seeds, the two sets of electric telescopic rods 705 are activated to move the two sets of baffles 704. The sides of the two sets of baffles 704 away from the filter holes of the second filter plate 703 are respectively placed against the inner walls of the left and right sides of the filter box 2. This seals the gaps between the left and right sides of the second filter plate 703 and the inner walls of the left and right sides of the filter box 2, thus preventing the seeds filtered by the first filter plate 702 from falling directly into the feed inlet of the pneumatic seeder body 1 and reducing the filtration effect of the filter assembly 7.

[0026] The drying assembly 6 includes two sets of warm air blowers 601, which are respectively installed inside two sets of baffles 704. The upper inclined surfaces of both sets of baffles 704 have grooves, and the two sets of warm air blowers 601 are installed inside these grooves. Annular filter screens 602 are fitted into the inner walls of both sets of warm air blowers 601. Specifically, when seeds enter the filter box 2 along the guide pipe 5, the two sets of warm air blowers 601 are activated to blow warm air. This air then passes through the airflow path of the two sets of warm air blowers 601, positioned at the filter plate 702. This allows the warm air blown by the two sets of warm air blowers 601 to drain the moisture accumulated on the outer surface of the seeds at the upper end of the filter plate 702, thereby preventing moisture buildup on the seed surface. The surface is covered with moisture, causing a lot of seeds to stick together. The filter plate 702 is installed directly above the two sets of heaters 601. When the two sets of heaters 601 are started, they blow the seeds accumulated inside the filter holes of the filter plate 702 upwards, thereby minimizing the blockage inside the filter plate 702 and improving the filtration efficiency of the device. The annular filter screen 602 is installed on the side of the heater 601 near the filter holes of the filter plate 703. The annular filter screen 602 shields and protects the heater 601, thereby minimizing the possibility of seeds entering the heater 601 during the pouring of seeds and causing blockage inside the heater 601.

[0027] The cleaning component 9 includes two sets of connecting blocks 901. The connecting blocks 901 are installed on the side of the baffle 704 near the filter holes of the second filter plate 703. A cleaning bucket 903 is rotatably connected to the front of the connecting blocks 901. The lower surface of the cleaning bucket 903 abuts against the upper surface of the second filter plate 703. A groove is formed on the front of the connecting blocks 901, and a rotating rod 902 is rotatably connected inside the groove. The inner wall of the cleaning bucket 903 is installed on the outer surface of the two sets of rotating rods 902. Specifically, the connecting blocks 901... 01 is installed on the side of the baffle 704 near the filter holes of the second filter plate 703. When the baffle 704 slides on the upper end of the second filter plate 703, it pushes the two sets of cleaning buckets 903 to rotate. In turn, the two sets of cleaning buckets 903 push the seeds accumulated inside the filter holes of the second filter plate 703 to move during the rotation. This avoids the baffle 704 squeezing the seeds accumulated inside the filter holes of the second filter plate 703 during the sliding of the upper end of the second filter plate 703, which would cause damage to the seeds.

[0028] Protective covers 8 are installed on the side of the two sets of baffles 704 near the filter holes of the second filter plate 703. The lower surfaces of the two sets of protective covers 8 abut against the upper surface of the second filter plate 703. The two sets of protective covers 8 are located at the top of the two sets of slots of the second filter plate 703, and the sides of the two sets of protective covers 8 away from the filter holes of the second filter plate 703 abut against the inner walls of the front and rear sides of the filter box 2, respectively. Specifically, by positioning the two sets of protective covers 8 at the top of the two sets of slots of the second filter plate 703, the two sets of protective covers 8 respectively block the two sets of slots of the second filter plate 703, thereby minimizing the risk of seeds falling into the slots of the second filter plate 703 and preventing the two sets of baffles 704 from moving normally, and reducing the frequency of cleaning the inside of the two sets of slots of the second filter plate 703 by the staff.

[0029] The working principle of this invention is as follows: Seeds are poured along the feed pipe 5 into the filter box 2 and then fall into the filter plate 702, filter plate 703, and storage box 701. The different pore sizes of the filter plates 702 and 703 allow for multiple layers of filtration. The motor 706 rotates the filter plate 703 inside the filter box 2, causing the evenly distributed seeds accumulated on the upper part of the filter plate 703 to fall into the pneumatic seeder body 1, thus completing the filtration of the seeds and preventing irregularly shaped or unevenly sized seeds from falling into the filter box 2. Large seeds, such as carrots and celery, may not be firmly adsorbed, resulting in missed or excessive adsorption, leading to inaccurate sowing spacing. By activating two sets of electric telescopic rods 705, two sets of baffles 704 are moved, and the side of the two sets of baffles 704 away from the filter holes of filter plate 2 703 is respectively placed against the left and right inner walls of filter box 2. This seals the gap between the left and right sides of filter plate 2 703 and the left and right inner walls of filter box 2, thereby preventing the seeds filtered by filter plate 1 702 from falling directly into the feed inlet of the pneumatic seeder body 1, which would reduce the filtration effect of filter component 7.

[0030] Meanwhile, by activating two sets of warm air blowers 601, and then placing the filter plate 702 in the airflow path of the two sets of warm air blowers 601, the warm air blown out by the two sets of warm air blowers 601 drains the moisture that accumulates on the outer surface of the seeds at the upper end of the filter plate 702, thereby preventing excessive seed sticking due to moisture on the outer surface of the seeds; by placing the filter plate 702 directly above the two sets of warm air blowers 601, the two sets of warm air blowers 601, during the activation process, cause the seeds accumulated inside the filter holes of the filter plate 702 to jump upwards, thereby minimizing the possibility of blockage inside the filter plate 702.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pneumatic seeder with adjustable sowing spacing, comprising a pneumatic seeder body (1), characterized in that, The upper end of the pneumatic seeder body (1) is fitted with a filter box (2). Inside the filter box (2) is a filter assembly (7) for filtering seeds. Inside the filter assembly (7) is a drying assembly (6) for filtering water from the seeds. The bottom of the inner wall of the filter assembly (7) is rotatably connected to a cleaning assembly (9) for pushing the seeds to move inside the filter assembly (7).

2. The pneumatic seeder with adjustable sowing spacing according to claim 1, characterized in that, The filter assembly (7) includes a first filter plate (702) and a second filter plate (703). The first filter plate (702) is installed inside the filter box (2), and the second filter plate (703) is rotatably connected inside the filter box (2). Two sets of baffles (704) are slidably connected to the upper surface of the second filter plate (703).

3. A pneumatic seeder with adjustable sowing spacing according to claim 2, characterized in that, The drying assembly (6) includes two sets of heaters (601), which are respectively installed inside the two sets of baffles (704).

4. A pneumatic seeder with adjustable sowing spacing according to claim 2, characterized in that, The cleaning component (9) includes two sets of connecting blocks (901). The connecting blocks (901) are installed on the side of the baffle (704) near the filter holes of the filter plate (703). The front of the connecting block (901) is rotatably connected to the cleaning bucket (903).

5. A pneumatic seeder with adjustable seeding spacing according to claim 2, characterized in that, A protective cover (8) is installed on the side of the two sets of baffles (704) near the filter holes of the filter plate (703).

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