A double-row shared seed collecting device special for a field seeder

Abstract

A dual-row shared seed collection device specifically for small-area seeders belongs to the field of agricultural machinery technology. The seed metering device has a right-side seed cleaning interface on the right side wall of the bottle body. Seed metering devices with left-side, right-side, and left-side interfaces, a negative pressure interface for seed metering device 1, and a negative pressure interface for seed metering device 2 are sequentially located on the front side wall of the bottle body from right to left. One of the six pneumatic disc valve assemblies is installed on the right-side seed cleaning interface of seed metering device 1, and the other five are respectively installed on the left-side, right-side, and left-side seed cleaning interfaces of seed metering device 1, the negative pressure interface for seed metering device 1, and the negative pressure interface for seed metering device 2. The negative pressure interface is installed on the left side wall of the bottle body. The bottom cover is installed at the bottom of the bottle body at the bottle opening. This invention provides four seed cleaning interfaces and two negative pressure interfaces, meeting the operational needs of two electrically driven dual-unit seed metering devices and further improving the automation level of the machine.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery and equipment technology, specifically relating to a dual-row shared seed collection device for small plot planters used in the breeding industry. Background Technology

[0002] The plot seeder is an invaluable tool for many breeders, and its widespread application is a crucial means of improving the mechanization level of breeding. Its performance determines the development level of the breeding industry. During a single operation, the plot seeder needs to sow seeds of different varieties of the same type into different plots (cells) located on the same ridge in a predetermined order. Because the number of remaining seeds (hereinafter referred to as surplus seeds) at the end of the seed metering process is relatively small, there is a high probability of missed sowing. Therefore, to ensure sufficient seed filling at the end of the sowing period, the number of seeds fed in must exceed the actual number sown. The resulting surplus seeds must be removed immediately after the current plot's sowing operation is completed to prevent mixing with the seeds of the next plot. Therefore, this device is specifically designed for four-row plot seeders using an electrically driven double seed metering unit. Summary of the Invention

[0003] The purpose of this invention is to solve the aforementioned problems in the background art by providing a dedicated double-row seed collection device for small-area seeders, thereby further improving the degree of automation and product performance.

[0004] This invention is applicable to the research, development, upgrading and modification of small-area seeders.

[0005] The dual-row shared seed collection device for small-area seeders of the present invention mainly solves the following problems:

[0006] 1. For the sake of rationality of the overall pipeline layout and ease of operation, one set of this device is configured on each of the left and right sides of the four-row plot seeder. Each set of devices corresponds to two seed meterers. Each seed meterer integrates two sets of seed metering components. Each set of seed metering components is equipped with a seed cleaning interface. Therefore, this device needs to be able to provide four seed cleaning interfaces at the same time.

[0007] 2. To simplify pipeline layout, the negative pressure interfaces of the two seeders are directly connected to this device, and the seeder no longer needs to be equipped with a separate negative pressure distribution device.

[0008] 3. Since the electric dual seed metering device has an independent seed filling chamber, after the current plot is sown, the bottom plate of the seed filling chamber flips over, and the remaining seeds are discharged outside the seed filling chamber (the area between the bottom plate of the seed filling chamber and the seed metering device shell) for temporary storage. Moreover, the storage space for the remaining seeds is large, so the seed cleaning process can be completed in one go after the sowing of all plots in the current ridge (the conventional solution requires the seed cleaning process to be carried out after the sowing of each plot). Since the sowing operation has ended at this time, it is not necessary to provide negative pressure to the seed metering device. Therefore, in order to improve the utilization efficiency of the negative pressure source, it is necessary to have the function of shutting off the negative pressure interface of both seed metering devices.

[0009] 4. To facilitate understanding of the remaining seed stock in the device, an observation window is required. Since the device bottle is made of opaque material, the device needs to have internal lighting. To prevent overstocking due to lack of observation, an alarm function for exceeding the seed stock limit is required.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A dual-row seed collection device for a small-area seeder includes a bottle assembly and six pneumatic disc valve assemblies. The bottle assembly includes a bottle body, an observation window, a negative pressure interface, a bottom cover, a partition, a seed metering device 1 right side seed cleaning interface, a seed metering device 1 left side seed cleaning interface, a seed metering device 2 right side seed cleaning interface, a seed metering device 2 left side seed cleaning interface, a seed metering device 1 negative pressure interface, and a seed metering device 2 negative pressure interface.

[0012] An observation window is fixedly installed at the observation port located at the lower front of the right side wall of the bottle body; the right-side seed cleaning interface of seed metering device one is located at the upper position of the right side wall of the bottle body, and the left-side seed cleaning interface of seed metering device one, the right-side seed cleaning interface of seed metering device two, the left-side seed cleaning interface of seed metering device two, the negative pressure interface of seed metering device one, and the negative pressure interface of seed metering device two are sequentially located at the upper position of the front side wall of the bottle body from right to left; one of the pneumatic disc valve assemblies is installed on the right-side seed cleaning interface of seed metering device one, and the other five pneumatic disc valve assemblies are respectively installed on the left-side seed cleaning interface of seed metering device one, the right-side seed cleaning interface of seed metering device two, the left-side seed cleaning interface of seed metering device two, the negative pressure interface of seed metering device one, and the negative pressure interface of seed metering device two;

[0013] The partition is fixedly connected to the front and rear inner walls and the inner bottom surface of the bottle body, and the partition is located between the seed cleaning interface on the left side of the seed metering device 2 and the negative pressure interface of the seed metering device 1. There is a gap between the top of the partition and the inner top surface of the bottle body; the negative pressure interface is installed at a through hole opened on the upper left side wall of the bottle body; the bottom cover is installed at the bottle mouth at the bottom of the bottle body.

[0014] Furthermore, the six pneumatic disc valve assemblies are pneumatic disc valve assembly one, pneumatic disc valve assembly two, pneumatic disc valve assembly three, pneumatic disc valve assembly four, pneumatic disc valve assembly five, and pneumatic disc valve assembly six.

[0015] Pneumatic disc valve assembly one is installed on the right side cleaning port of seed metering device one; pneumatic disc valve assembly two is installed on the left side cleaning port of seed metering device one; pneumatic disc valve assembly three is installed on the right side cleaning port of seed metering device two; pneumatic disc valve assembly four is installed on the left side cleaning port of seed metering device two; pneumatic disc valve assembly five is installed on the negative pressure port of seed metering device one; and pneumatic disc valve assembly six is ​​installed on the negative pressure port of seed metering device two.

[0016] Furthermore, the six pneumatic disc valve assemblies have the same structure and each includes a valve base, valve top cover, valve core, sealing sleeve, bushing, adapter shaft, rotary cylinder, quick connector one, and quick connector two.

[0017] The valve base is formed by fixing one end of a semi-cylinder to the outer wall of a cylindrical body. The axes of the semi-cylinder and the cylindrical body are located in the same plane and intersect at an angle of 90°. The end face of the semi-cylinder is flush with one end of the cylindrical body. A semi-circular stepped hole is opened in the center of the semi-cylinder. The semi-circular stepped hole of the semi-cylinder is connected to the center hole of the cylindrical body. An annular groove is provided around the end of the center hole of the cylindrical body. Four valve base mounting holes are evenly distributed on the outer periphery of the annular groove. Four mounting claws are symmetrically provided on the outer side of the cylindrical body. The four mounting claws are flush with the other end face of the cylindrical body. Each mounting claw is provided with a connecting hole.

[0018] The valve top cover is composed of a semi-cylinder II and a cylindrical outer wall fixedly connected at one end. The axes of the semi-cylinder II and the cylindrical outer wall are located in the same plane and the angle between them is 90°. The end face of the semi-cylinder II is flush with one end of the cylindrical outer wall. A semi-circular stepped hole II is opened in the center of the semi-cylinder II. The semi-circular stepped hole II of the semi-cylinder II is connected to the central hole of the cylindrical outer wall. An annular groove II is provided around the end of the central hole of the cylindrical outer wall. Four valve top cover mounting holes are evenly distributed on the outer periphery of the annular groove II. A bent tube structure extends from the central hole of the cylindrical outer wall.

[0019] The valve core is composed of a circular plate and two cylinders fixedly connected to the outer wall of the circular plate. The two cylinders are symmetrically arranged with respect to the center of the circular plate, and the head of one of the cylinders is machined into a regular square prism shape.

[0020] The inner diameter of the sealing sleeve is the same as the outer diameter of the valve core disc, as well as the inner diameter of the annular groove one of the valve base and the annular groove two of the valve top cover. The outer diameter of the sealing sleeve is the same as the outer diameter of the annular groove one of the valve base and the annular groove two of the valve top cover. The two ends of the sealing sleeve are respectively matched and set in the annular groove one of the valve base and the annular groove two of the valve top cover. The side wall of the sealing sleeve has two through holes two symmetrically opened along the direction perpendicular to its axis. The two cylinders on the valve core pass through the two through holes two, and the valve core can rotate in the sealing sleeve.

[0021] A bushing is fitted onto one end of one of the cylinders of the valve core, and the bushing is embedded in the valve base and the valve top cover respectively;

[0022] The adapter shaft is a stepped shaft. One end of the adapter shaft has a square hole and the other end has a connecting hole. One end of the adapter shaft is embedded in the semi-circular stepped hole one of the valve base and the semi-circular stepped hole two of the valve top cover. The end of the adapter shaft with the square hole is fitted onto the square prism of one of the cylinders of the valve core.

[0023] The cylinder shaft of the rotary cylinder reciprocates within the cylinder body. A keyway is milled on the outer end of the cylinder shaft. The cylinder shaft rotates at an angle of 90°. The cylinder shaft is fixedly connected to the connecting hole of the adapter shaft.

[0024] The cylinder body is fixed on the end face of one end of the semi-cylinder of the valve base and the semi-cylinder of the valve top cover; the valve core and the adapter shaft are radially connected by set screws; quick connector one and quick connector two are installed on the cylinder body and communicate with the inner cavity of the cylinder body.

[0025] Furthermore, the dual-row shared seed collection device for the plot seeder also includes an electrical interface assembly; the electrical interface assembly includes an electrical interface socket, a negative pressure sensor, a seed quantity sensor, a seed quantity sensor interface, and an LED light strip interface;

[0026] The electrical interface socket is installed on the top surface of the bottle. The electrical interface socket has three internal threaded holes. Corresponding to the three internal threaded holes, the top surface of the bottle has three through holes. The negative pressure sensor, seed quantity sensor interface and LED light strip interface are respectively fastened to the three internal threaded holes of the electrical interface socket by threaded connection. The seed quantity sensor is fastened to the inside of the seed quantity sensor interface by threaded connection. The seed quantity sensor and the negative pressure sensor are respectively connected to the control system signal.

[0027] Furthermore, the distance between the top of the partition and the top surface of the bottle is 37mm.

[0028] Furthermore, the bottom cap is in the shape of a round plate, with one end of the bottom cap hinged to the bottle mouth, and the other end of the bottom cap locked to the bottle mouth by a metal buckle.

[0029] Furthermore, the bottle assembly also includes a support column; a support column is provided at the center between the partition and the right end of the bottle, and the two ends of the support column are fixedly connected to the front and rear inner walls of the bottle.

[0030] Furthermore, the pneumatic disc valve assembly also includes a sealing ring; the other end face of the cylinder of the valve base is provided with an annular groove, and the sealing ring is embedded in the annular groove.

[0031] Furthermore, the dual-row shared seed collection device for the community seeder also includes an LED light strip; the LED light strip is fixed to the top of the bottle body, and the LED light strip interface is connected to the lead cable of the LED light strip connection control system.

[0032] Compared with the prior art, the beneficial effects of the present invention are: the present invention can provide negative pressure distribution and excess seed collection functions for plot seeders that use electric dual seeders and similar seeders equipped with two sets of seeders. A four-row plot seeder only needs to install one set of this device on the left and right sides respectively.

[0033] The advantages of the device of the present invention are mainly reflected in the following aspects:

[0034] 1. It can provide four seed cleaning interfaces and two negative pressure interfaces to meet the negative pressure distribution and residual seed collection needs of two electric dual-drive seeders.

[0035] 2. Both the seed cleaning interface and the negative pressure interface of this device can be pneumatically controlled to open and close. That is, when performing the seed cleaning step, both negative pressure interfaces can be closed and the seed cleaning interface can be opened one by one for a short time to improve the working efficiency of the negative pressure fan and reduce the power requirements.

[0036] 3. The bottle is designed with an observation window made of transparent material, and the inside of the bottle is equipped with an LED light strip, which can be used to observe the seed quantity at any time. It can detect the real-time seed quantity with the help of a seed quantity sensor. When the seed quantity exceeds the limit due to lack of observation, the seed quantity sensor sends a seed quantity over-limit signal. After receiving the signal, the control system will issue an audible and visual alarm to remind the driver. Attached Figure Description

[0037] Figure 1 This is a right front axle view of the special double-row shared seed collection device for small-area seeders of the present invention;

[0038] Figure 2 This is a left front axonometric view of the double-row shared seed collection device for the local seeder of this invention;

[0039] Figure 3 This is a front view of the double-row shared seed collection device for a small-area planter according to the present invention;

[0040] Figure 4 This is a rear view of the double-row shared seed collection device for a small-area planter according to the present invention;

[0041] Figure 5 This is a top view of the double-row shared seed collection device for a small-area planter according to the present invention;

[0042] Figure 6 This is a bottom view of the double-row shared seed collection device for a small-area planter according to the present invention;

[0043] Figure 7 This is a longitudinal sectional rear view of the double-row shared seed collection device for the local seeder of the present invention;

[0044] Figure 8 This is a longitudinal sectional front view of the double-row shared seed collection device for the local seeder of the present invention;

[0045] Figure 9 This is an exploded view of the overall structure of the double-row shared seed collection device for small-area seeders of the present invention;

[0046] Figure 10 This is a cross-sectional view of the pneumatic disc valve assembly of the present invention;

[0047] Figure 11 This is an exploded view of the pneumatic disc valve assembly of the present invention;

[0048] Figure 12This is an exploded view of the electrical interface component of the present invention;

[0049] Figure 13 This is an isometric view of the bottle body of the present invention;

[0050] Figure 14 This is an exploded cross-sectional view of the bottle assembly of the present invention.

[0051] The component names and reference numerals in the above figures are as follows:

[0052] 1-Bottle body assembly; 2-Pneumatic disc valve assembly one; 3-Pneumatic disc valve assembly two; 4-Pneumatic disc valve assembly three; 5-Pneumatic disc valve assembly four; 6-Pneumatic disc valve assembly five; 7-Pneumatic disc valve assembly six; 8-Electrical interface assembly; 11-Bottle body; 12-Observation window; 13-Negative pressure interface; 14-Bottom cap; 15-LED light strip; 111-Separator; 112-Right side cleaning interface of seed metering device one; 113-Left side cleaning interface of seed metering device one; 114-Right side cleaning interface of seed metering device two; 115-Left side cleaning interface of seed metering device two ; 116-Seed metering device one negative pressure interface; 117-Seed metering device two negative pressure interface; 118-Support column; 81-Electrical interface socket; 82-Negative pressure sensor; 83-Seed quantity sensor; 84-Seed quantity sensor interface; 85-LED light strip interface; F1-Valve base; F2-Valve top cover; F3-Valve core; F4-Sealing sleeve; F5-Shaft sleeve; F6-Adapter shaft; F7-Setting screw; F8-Flat key; F9-Cylinder shaft; F10-Cylinder body; F11-Sealing ring; F12-Quick connector one; F13-Quick connector two. Detailed Implementation

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0054] Specific implementation method one: as follows Figures 1-14As shown, this embodiment discloses a dual-row shared seed collection device for a small-area planter, including a bottle assembly 1 and six pneumatic disc valve assemblies. The bottle assembly 1 includes a bottle 11 (the bottle 11 has an irregular triangular block shape, a hollow structure, and a wall thickness of 4mm. Due to its complex shape, it is manufactured using 3D printing additive manufacturing and is made of opaque resin), an observation window 12, a negative pressure interface 13, a bottom cover 14, a partition 111, a seed cleaning interface 112 on the right side of the seed metering device 1, a seed cleaning interface 113 on the left side of the seed metering device 1, a seed cleaning interface 114 on the right side of the seed metering device 2, a seed cleaning interface 115 on the left side of the seed metering device 2 (the diameter of the above seed cleaning interfaces is 34mm, which can ensure the smooth flow of larger-diameter seeds such as corn), a negative pressure interface 116 for the seed metering device 1, and a negative pressure interface 117 for the seed metering device 2.

[0055] The observation window 12 is fixedly mounted (by screws) at the observation port located on the lower front right side wall of the bottle body 11 (the observation window 12 is elongated in shape and made of transparent material, such as transparent acrylic sheet).

[0056] The right-side cleaning interface 112 of the seed metering device is located on the upper right side wall of the bottle body 11. The left-side cleaning interface 113 of the seed metering device 1, the right-side cleaning interface 114 of the seed metering device 2, the left-side cleaning interface 115 of the seed metering device 2, the negative pressure interface 116 of the seed metering device 1, and the negative pressure interface 117 of the seed metering device 2 are located on the upper front side wall of the bottle body 11 from right to left (preferably arranged at equal intervals). One of the pneumatic disc valve assemblies is installed on the right-side cleaning interface 112 of the seed metering device 1, and the other five pneumatic disc valve assemblies are respectively installed on the left-side cleaning interface 113 of the seed metering device 1, the right-side cleaning interface 114 of the seed metering device 2, the left-side cleaning interface 115 of the seed metering device 2, the negative pressure interface 116 of the seed metering device 1, and the negative pressure interface 117 of the seed metering device 2.

[0057] The partition 111 (a sheet structure with a thickness of 5mm) is fixedly connected to the front and rear inner walls and the inner bottom surface of the bottle body 11. The partition 111 is located between the seed cleaning interface 115 on the left side of the seed metering device 2 and the negative pressure interface 116 of the seed metering device 1. There is a gap between the top of the partition 111 and the inner top surface of the bottle body 11.

[0058] The negative pressure interface 13 is installed at a through hole on the upper left side wall of the bottle body 11 (the negative pressure interface 13 is made of nylon, and one end of the negative pressure interface 13 is provided with a circular flange with four mounting holes evenly distributed on the flange. The flange is fixed to the through hole on the upper left side wall of the bottle body 11 by screws inserted into the four mounting holes); the bottom cover 14 is installed at the bottle mouth at the bottom of the bottle body 11.

[0059] Furthermore, the six pneumatic disc valve assemblies are pneumatic disc valve assembly 1, pneumatic disc valve assembly 2, pneumatic disc valve assembly 3, pneumatic disc valve assembly 3, pneumatic disc valve assembly 4, pneumatic disc valve assembly 5, pneumatic disc valve assembly 5, and pneumatic disc valve assembly 6.

[0060] Pneumatic disc valve assembly 1 (2) is installed on the right side cleaning port 112 of seed metering device 1; pneumatic disc valve assembly 2 (3) is installed on the left side cleaning port 113 of seed metering device 1; pneumatic disc valve assembly 3 (4) is installed on the right side cleaning port 114 of seed metering device 2; pneumatic disc valve assembly 4 (5) is installed on the left side cleaning port 115 of seed metering device 2; pneumatic disc valve assembly 5 (6) is installed on the negative pressure port 116 of seed metering device 1; and pneumatic disc valve assembly 6 (7) is installed on the negative pressure port 117 of seed metering device 2.

[0061] Furthermore, the six pneumatic disc valve assemblies have the same structure and each includes a valve base F1, a valve top cover F2, a valve core F3, a sealing sleeve F4, a bushing F5, an adapter shaft F6, a rotary cylinder, a quick connector one F12, and a quick connector two F13.

[0062] The valve base F1 is formed by fixing one end of a semi-cylinder to the outer wall of a cylindrical body. The axes of the semi-cylinder and the cylindrical body are located in the same plane and intersect at an angle of 90°. The end face of the semi-cylinder is flush with one end of the cylindrical body. A semi-circular stepped hole is opened in the center of the semi-cylinder, which is connected to the central hole of the cylindrical body (the central hole of the cylindrical body has a diameter of 34mm, which can ensure the smooth flow of larger-diameter seeds such as corn). An annular groove is provided around the end of the central hole of the cylindrical body. Four valve base mounting holes are evenly distributed on the outer circumference of the annular groove. Four mounting claws are symmetrically provided on the outer side of the cylindrical body. The four mounting claws are flush with the other end face of the cylindrical body. Each mounting claw has a connecting hole (for installing the pneumatic disc valve assembly). Due to its complex shape, the valve base F1 is manufactured by 3D printing additive manufacturing, and its material is ordinary resin.

[0063] The valve top cover F2 is composed of a semi-cylinder two with one end fixedly connected to the outer wall of the cylinder two. The axes of the semi-cylinder two and the cylinder two are located in the same plane and the angle between them is 90°. The end face of the semi-cylinder two is flush with one end of the cylinder two. A semi-circular stepped hole two is opened in the center of the semi-cylinder two. The semi-circular stepped hole two of the semi-cylinder two is connected to the center hole of the cylinder two. An annular groove two is provided around the end of the center hole of the cylinder two. Four valve top cover mounting holes are evenly distributed on the outer periphery of the annular groove two (the semi-circular stepped hole two of the semi-cylinder two is the same size as the semi-circular stepped hole one of the semi-cylinder one, the center hole of the cylinder one is the same size as the center hole of the cylinder two, the annular groove one of the cylinder one is the same size as the annular groove two of the cylinder two, and the valve base mounting hole is the same size as the valve top cover mounting hole). A bent tube structure extends from the center hole of the cylinder two (due to the complex shape of the valve top cover F2, it is manufactured by 3D printing additive manufacturing, and its material is ordinary resin).

[0064] The valve core F3 is composed of a circular plate and two cylinders fixedly connected to the outer wall of the circular plate. The two cylinders are symmetrically arranged with respect to the center of the circular plate. The head of one of the cylinders is machined into a regular square prism shape (the valve core F3 is made of stainless steel with a smooth surface).

[0065] The inner diameter of the sealing sleeve F4 (a cylindrical structure made of rubber) is the same as the outer diameter of the disc of the valve core F3, and the inner diameters of the annular groove one of the valve base F1 and the annular groove two of the valve top cover F2. The outer diameter of the sealing sleeve F4 is the same as the outer diameter of the annular groove one of the valve base F1 and the annular groove two of the valve top cover F2. The two ends of the sealing sleeve F4 are respectively matched and set in the annular groove one of the valve base F1 and the annular groove two of the valve top cover F2 (the height of the sealing sleeve F4 is greater than the annular groove one of the valve base F1 and the annular groove two of the valve top cover F2). The distance between the two bottom surfaces is slightly larger. After assembly, the sealing sleeve F4 is compressed and deformed, which enhances the sealing performance with the valve core F3. The valve base F1 and the valve top cover F2 are fastened together. The semi-circular stepped hole two of the semi-cylinder two and the semi-circular stepped hole one of the semi-cylinder one are combined to form a circular stepped hole (the annular groove one and the annular groove two are set opposite to each other). The side wall of the sealing sleeve F4 has two through holes two symmetrically opened along the direction perpendicular to its axis. The two cylinders on the valve core F3 pass through the two through holes two, and the valve core F3 can rotate in the sealing sleeve F4.

[0066] The bushing F5 is fitted onto one end of one of the cylinders of the valve core F3. The bushing F5 is embedded in the valve base F1 and the valve top cover F2 respectively (a semi-circular groove is provided on one side wall of the annular groove of cylinder one and the second side wall of the annular groove of cylinder two, and the bushing F5 is placed in the two semi-circular grooves. The bushing F5 is made of nylon and acts as a sliding bearing).

[0067] The adapter shaft F6 (made of nylon) is a stepped shaft. One end of the adapter shaft F6 has a square hole, and the other end has a connecting hole (with a keyway). One end of the adapter shaft F6 is embedded in the semi-circular stepped hole one of the valve base F1 and the semi-circular stepped hole two of the valve top cover F2. The end of the adapter shaft F6 with the square hole is matched and fitted on the square prism of one of the cylinders of the valve core F3.

[0068] The cylinder shaft F9 of the rotary cylinder reciprocates within the cylinder body F10. A keyway is milled on the outer end of the cylinder shaft F9. The rotation angle of the cylinder shaft F9 is 90°. The cylinder shaft F9 (via a flat key F8) is fixedly connected to the connecting hole of the adapter shaft F6 (which also has a keyway). (Under the action of compressed gas, the cylinder shaft F9 can reciprocate within the cylinder body F10, with a fixed rotation angle of 90°. The flat key F8 has dimensions of 4×4×18mm).

[0069] The cylinder body F10 is fixed (by screws) to the end face of the semi-cylinder one of the valve base F1 and the semi-cylinder two of the valve top cover F2; the valve core F3 is radially connected to the adapter shaft F6 through the set screw F7 (the set screw F7 locks the valve core F3 to the adapter shaft F6 in the axial direction through the radial internal thread hole opened on the adapter shaft F6); quick connector one F12 and quick connector two F13 (by thread connection) are installed on the cylinder body F10 and communicate with the inner cavity of the cylinder body F10 (both quick connectors are PC4-M5, used to introduce compressed gas into the cylinder body F10).

[0070] Furthermore, the dual-row shared seed collection device for the community seeder also includes an electrical interface component 8; the electrical interface component 8 includes an electrical interface socket 81, a negative pressure sensor 82, a seed quantity sensor 83, a seed quantity sensor interface 84, and an LED light strip interface 85;

[0071] An electrical interface socket 81 (elongated, made of nylon, mounted with screws) is installed on the top surface of the bottle body 11. The electrical interface socket 81 has three internal threaded holes. Corresponding to these three internal threaded holes on the top surface of the bottle body 11 are three through holes. The system also includes a negative pressure sensor 82 (purchased component, measuring range -100-0 kPa, power supply DC 24V, signal output 4-20 mA), a seed quantity sensor interface 84 (purchased component, waterproof interface), and an LED light strip. Interface 85 (an externally purchased component, powered by DC 24V) is securely connected to the three internal threaded holes of electrical interface 81 via threaded connections. Seed quantity sensor 83 (an externally purchased component, model E3F1-DS10C4, powered by DC 24V, with an adjustable detection distance of 5-15cm) is securely connected to the inside of seed quantity sensor interface 84 via threaded connections (the thread specification of negative pressure sensor 82 is G1 / 4; the thread specification of seed quantity sensor interface 84 is PG9).

[0072] The seed quantity sensor 83 and the negative pressure sensor 82 are respectively connected to the control system signal.

[0073] Furthermore, the distance between the top of the partition 111 and the inner top surface of the bottle body 11 is 37mm (which ensures that the seeds sucked in by the left seed cleaning port 115 of the second seed meterer are not sucked into the negative pressure port 116 of the first seed meterer, while providing sufficient airflow channels for the right seed cleaning port 112, the left seed cleaning port 113 of the first seed meterer, the right seed cleaning port 114 of the second seed meterer, and the left seed cleaning port 115 of the second seed meterer located on the right side of the partition 111; at the same time, the partition 111 also increases the compressive strength of the front and rear side walls of the bottle body 11).

[0074] Furthermore, the bottom cap 14 is a circular piece (made of nylon), one end of the bottom cap 14 is hinged to the bottle mouth, and the other end of the bottom cap 14 is locked to the bottle mouth of the bottle body 11 by means of a metal buckle.

[0075] Furthermore, the bottle assembly 1 also includes a support column 118; a support column 118 is provided at the center between the partition 111 and the right end of the bottle 11, and both ends of the support column 118 are fixedly connected to the front and rear inner sidewalls of the bottle 11 (the purpose of setting the support column 118 is to increase the compressive strength of the front and rear sidewalls of the bottle 11).

[0076] Furthermore, the pneumatic disc valve assembly also includes a sealing ring F11; the other end face of the cylinder of the valve base F1 is provided with an annular groove, and the sealing ring F11 is embedded in the annular groove (the sealing ring F11 is made of rubber).

[0077] Furthermore, the dual-row seed collection device for the community seeder also includes an LED light strip 15; the LED light strip 15 (an externally purchased component, long and narrow in shape, powered by DC 24V, and secured by screws) is fixed to the top of the bottle body 11, and the LED light strip interface 85 is connected to the lead cable of the control system.

[0078] Working principle:

[0079] Pneumatic butterfly valve assemblies 1-2 to 6-7 have the same structure. Here, we take pneumatic butterfly valve assembly 1-2 as an example to explain its working principle: The sealing sleeve F4 is located between the two annular grooves (i.e., annular groove one and annular groove two) of the valve base F1 and the valve top cover F2. Its material is rubber, and the height of the sealing sleeve F4 is slightly larger than the distance between the bottom surfaces of the two annular grooves of the valve base F1 and the valve top cover F2. After the valve base F1 and the valve top cover F2 are assembled, the sealing sleeve F4 will undergo slight deformation, which can maintain a good sealing state. At the same time, the inner diameter of the sealing sleeve F4 is the same as the outer diameter of the disc of the valve core F3. Therefore, the communication state between the center hole of the valve base F1 and the bend outlet of the valve top cover F2 depends entirely on the relative position of the valve core F3 and the sealing sleeve F4. When compressed gas enters quick connector F12, cylinder shaft F9 rotates 90° clockwise relative to cylinder body F10. Since cylinder shaft F9 is connected to adapter shaft F6 (via key F8), and adapter shaft F6 engages with one of the cylindrical square pillars of valve core F3 and is locked by set screw F7, valve core F3 also rotates. The plane of valve core F3 is parallel to the axis of the center hole of valve base F1. At this time, pneumatic disc valve assembly 2 is in the open state. When compressed gas enters quick connector F13, cylinder shaft F9 rotates 90° counterclockwise, and valve core F3 also rotates. The plane of valve core F3 is perpendicular to the axis of the center hole of valve base F1, and valve core F3 is completely in contact with the inner surface of sealing sleeve F4. At this time, pneumatic disc valve assembly 2 is in the closed state. The bushing F5 is made of nylon and acts as a sliding bearing; the sealing ring F11 is embedded in the annular groove on the other end face (bottom face) of the cylinder of the valve base F1, which ensures the sealing between the valve base F1 and the bottle body 11.

[0080] The air inlet of the negative pressure fan of the seeder is connected to the negative pressure interface 13 of this device through a hose. The pneumatic disc valve assembly 5 6 is installed on the negative pressure interface 116 of the seed metering device 1, and the pneumatic disc valve assembly 6 7 is installed on the negative pressure interface 117 of the seed metering device 2. The pipe joint (i.e., the bend) of the valve top cover F2 in the pneumatic disc valve assembly 5 6 is connected to the negative pressure interface of the seed metering device 2 and the pipe joint of the valve top cover F2 in the pneumatic disc valve assembly 6 7 is connected to the negative pressure distribution system.

[0081] Seeder 1 has two sets of seeding components, located on the left and right sides of Seeder 1 respectively. The right seed cleaning interface of Seeder 1 is connected to the pipe joint of valve top cover F2 in pneumatic disc valve assembly 1 2 of this device through a hose. The left seed cleaning interface of Seeder 1 is connected to the pipe joint of valve top cover F2 in pneumatic disc valve assembly 2 3 of this device through a hose. Seeder 2 has two sets of seeding components, located on the left and right sides of Seeder 2 respectively. The right seed cleaning interface of Seeder 2 is connected to the pipe joint of valve top cover F2 in pneumatic disc valve assembly 3 4 of this device through a hose. The left seed cleaning interface of Seeder 2 is connected to the pipe joint of valve top cover F2 in pneumatic disc valve assembly 4 5 of this device through a hose.

[0082] When the seeder begins its field entry operation, pneumatic control (i.e., the pneumatic control system on the seeder controls the solenoid valve to introduce compressed gas into the cylinder body F10 of the rotary cylinder within the pneumatic disc valve assembly via a quick connector) drives the cylinder shaft F9 to rotate in two directions, completing the switching process of valve core F3. Pneumatic disc valve assemblies 1 through 4 (2) are closed, while pneumatic disc valve assemblies 5 (6) and 6 (7) are opened. The negative pressure ports 116 and 117 of both the seed metering device connect to the air inlet of the negative pressure fan configured on the seeder, thus providing the seed metering device with the negative pressure required for operation.

[0083] Because the seed metering device has an independent storage space for excess seeds, it is not necessary to perform a seed cleaning operation at the end of each plot of work. Instead, the seed cleaning process is arranged after the current planting operation is completed. Pneumatic disc valve assembly 1 to 7 are closed via pneumatic control. Then, pneumatic disc valve assembly 1 is opened via pneumatic control. At this time, the excess seeds in the right-side seed metering assembly of seed metering device 1 are drawn from seed metering device 1 through a hose and into the bottle 11 under negative pressure. Under gravity, they fall to the bottom of the bottle 11. Since only pneumatic disc valve assembly 1 is open, there is no additional loss, thus fully utilizing the performance of the negative pressure fan of the seeder. After 3 seconds, pneumatic disc valve assembly 1 is closed, completing the seed cleaning process on the right side of seed metering device 1. Then, pneumatic disc valve assembly 2 is opened via pneumatic control. At this time, the excess seeds in the left-side seed metering assembly of seed metering device 1 are drawn from seed metering device 1 through a hose and into the seed metering device under negative pressure. The seed cleaning port 113 on the left side of the seed metering device 1 enters the bottle body 11 and falls to the bottom of the bottle body 11 under the action of gravity. After 3 seconds, the pneumatic disc valve assembly 2 3 closes, completing the seed cleaning process on the left side of the seed metering device 1. Then, the pneumatic disc valve assembly 3 4 is opened by pneumatic control. At this time, the remaining seeds in the seed metering assembly on the right side of the seed metering device 2 are drawn from the seed metering device 2 through the hose and the seed cleaning port 114 on the right side of the seed metering device 2 into the bottle body 11 under the action of negative pressure. The seeds fall to the bottom of bottle 11, and after 3 seconds, the pneumatic disc valve assembly 3 4 closes, completing the seed cleaning process on the right side of seed metering device 2. After that, the pneumatic disc valve assembly 4 5 is opened by pneumatic control. At this time, the remaining seeds in the seed metering assembly on the left side of seed metering device 2 are drawn from seed metering device 2 through the hose and the seed cleaning interface 115 on the left side of seed metering device 2 into the inside of bottle 11 under the action of negative pressure. Under the action of gravity, the seeds fall to the bottom of bottle 11, and after 3 seconds, the pneumatic disc valve assembly 4 5 closes, completing the seed cleaning process on the right side of seed metering device 2.

[0084] As can be seen from the above seed cleaning process, the seed cleaning step is carried out one by one from the right side of Seed Meter 1 to the left side of Seed Meter 2 after the current field operation is completed and the negative pressure interface of the seed metering device is closed. This solution can greatly improve the working efficiency of the negative pressure fan configured on the seeder, ensure thorough seed cleaning without residue, and reduce power requirements.

[0085] Because the seed cleaning interface 115 on the left side of the seed metering device 2 on the bottle body 11 is adjacent to and close to the negative pressure interface 116 of the seed metering device 1, a partition 111 is installed between the seed cleaning interface 115 on the left side of the seed metering device 2 and the negative pressure interface 116 of the seed metering device 1 to prevent seeds entering the bottle body 11 through the seed cleaning interface 115 on the left side of the seed metering device 2 from being directly sucked into the negative pressure fan from the negative pressure fan from the negative pressure fan from the negative pressure fan from the negative pressure fan from the negative pressure fan from the negative pressure fan from the seed metering device 1.1. This partition 111 can also play a role in isolating the seeds. It can also prevent the remaining seeds in the bottle body 11 from accumulating to a certain height and being directly sucked into the negative pressure fan from the negative pressure fan from the negative pressure fan from the negative pressure fan from the seed metering device 1.1. At the same time, the partition 111 can also increase the compressive strength of the bottle body 11. The support 118 is also set up to increase the compressive strength of the bottle body 11.

[0086] Under normal working conditions, the amount of seeds accumulated inside the bottle 11 can be determined through the observation window 12. To ensure the observation effect, an LED light strip 15 is installed inside the bottle 11. At the same time, a seed quantity sensor 83 is installed on the top of the bottle 11. If the amount of seeds in the bottle 11 exceeds the upper limit due to human negligence, the seed quantity sensor 83 will output an over-limit signal to the control system. The control system will issue an audible and visual alarm signal to prompt the operator to clean it up in time.

[0087] A negative pressure sensor 82 is installed on the top of the bottle body 11 to detect the negative pressure value inside the bottle body 11. When there are faults such as abnormal operation of the negative pressure fan, damage to the negative pressure pipeline, detachment of the connector, or jamming of the pneumatic disc valve assembly, the control system can detect them in time and issue an audible and visual alarm signal to prompt the operator to deal with them in time.

[0088] When cleaning the remaining contents inside the bottle 11, open the latch of the locking bottom cover 14. The remaining contents accumulated inside the bottle 11 will flow out naturally under the action of gravity. The bottom cover 14 is equipped with a sealing strip on the edge to ensure the airtightness between it and the bottle 11.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

[0090] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0091] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A special double-row seed collection device for a small-area seeder, characterized in that: The device includes a bottle body assembly (1) and six pneumatic disc valve assemblies. The bottle body assembly (1) includes a bottle body (11), an observation window (12), a negative pressure port (13), a bottom cover (14), a partition (111), a seed metering device 1 right side seed cleaning port (112), a seed metering device 1 left side seed cleaning port (113), a seed metering device 2 right side seed cleaning port (114), a seed metering device 2 left side seed cleaning port (115), a seed metering device 1 negative pressure port (116), and a seed metering device 2 negative pressure port (117). The observation window (12) is fixedly installed at the observation port located at the lower front of the right side wall of the bottle body (11); the right side cleaning interface (112) of the seed meterer is located at the upper position of the right side wall of the bottle body (11), and the left side cleaning interface (113), the right side cleaning interface (114), the left side cleaning interface (115), the negative pressure interface (116) of the seed meterer and the negative pressure interface (117) of the seed meterer are sequentially located at the upper position of the front side wall of the bottle body (11) from right to left; one of the pneumatic disc valve assemblies is installed on the right side cleaning interface (112) of the seed meterer, and the other five pneumatic disc valve assemblies are respectively installed on the left side cleaning interface (113), the right side cleaning interface (114), the left side cleaning interface (115), the negative pressure interface (116) of the seed meterer and the negative pressure interface (117) of the seed meterer; The partition (111) is fixedly connected to the front and rear inner walls and the inner bottom surface of the bottle body (11), and the partition (111) is located between the seed cleaning interface (115) on the left side of the seed metering device 2 and the negative pressure interface (116) of the seed metering device 1. There is a gap between the top of the partition (111) and the inner top surface of the bottle body (11); the negative pressure interface (13) is installed at a through hole opened on the upper left side wall of the bottle body (11); the bottom cover (14) is installed at the bottle mouth at the bottom of the bottle body (11).

2. The double-row shared seed collection device for a plot planter according to claim 1, characterized in that: The six pneumatic disc valve assemblies are pneumatic disc valve assembly one (2), pneumatic disc valve assembly two (3), pneumatic disc valve assembly three (4), pneumatic disc valve assembly four (5), pneumatic disc valve assembly five (6) and pneumatic disc valve assembly six (7); Pneumatic disc valve assembly 1 (2) is installed on the right side cleaning interface (112) of seed metering device 1, pneumatic disc valve assembly 2 (3) is installed on the left side cleaning interface (113) of seed metering device 1, pneumatic disc valve assembly 3 (4) is installed on the right side cleaning interface (114) of seed metering device 2, pneumatic disc valve assembly 4 (5) is installed on the left side cleaning interface (115) of seed metering device 2, pneumatic disc valve assembly 5 (6) is installed on the negative pressure interface (116) of seed metering device 1, and pneumatic disc valve assembly 6 (7) is installed on the negative pressure interface (117) of seed metering device 2.

3. A special double-row seed collection device for a small-area seeder according to claim 1 or 2, characterized in that: The six pneumatic disc valve assemblies have the same structure and each includes a valve base (F1), valve top cover (F2), valve core (F3), sealing sleeve (F4), bushing (F5), adapter shaft (F6), rotary cylinder, quick connector one (F12), and quick connector two (F13). The valve base (F1) is formed by fixing one end of a semi-cylinder to the outer wall of a cylindrical body. The axes of the semi-cylinder and the cylindrical body are located in the same plane and the angle between them is 90°. The end face of the semi-cylinder is flush with one end of the cylindrical body. A semi-circular stepped hole is opened in the center of the semi-cylinder. The semi-circular stepped hole of the semi-cylinder is connected to the center hole of the cylindrical body. An annular groove is provided around the end of the center hole of the cylindrical body. Four valve base mounting holes are evenly distributed on the outer periphery of the annular groove. Four mounting claws are symmetrically provided on the outer side of the cylindrical body. The four mounting claws are flush with the other end face of the cylindrical body. Each mounting claw is provided with a connecting hole. The valve top cover (F2) is composed of a semi-cylinder two and a cylindrical outer wall fixedly connected at one end. The axes of the semi-cylinder two and the cylindrical two are located in the same plane and the angle between them is 90°. The end face of the semi-cylinder two is flush with one end of the cylindrical two. A semi-circular stepped hole two is opened in the center of the semi-cylinder two. The semi-circular stepped hole two of the semi-cylinder two is connected to the center hole of the cylindrical two. An annular groove two is provided around the end of the center hole of the cylindrical two. Four valve top cover mounting holes are evenly distributed on the outer periphery of the annular groove two. A bent tube structure extends from the center hole of the cylindrical two. The valve core (F3) is composed of a disc and two cylinders fixedly connected to the outer wall of the disc. The two cylinders are symmetrically arranged with respect to the center of the disc, and the head of one of the cylinders is machined into a square prism shape. The inner diameter of the sealing sleeve (F4) is the same as the outer diameter of the disc of the valve core (F3), as well as the inner diameter of the annular groove one of the valve base (F1) and the annular groove two of the valve top cover (F2). The outer diameter of the sealing sleeve (F4) is the same as the outer diameter of the annular groove one of the valve base (F1) and the annular groove two of the valve top cover (F2). The two ends of the sealing sleeve (F4) are respectively matched and set in the annular groove one of the valve base (F1) and the annular groove two of the valve top cover (F2). The side wall of the sealing sleeve (F4) has two through holes two symmetrically opened along the direction perpendicular to its axis. The two cylinders on the valve core (F3) pass through the two through holes two, and the valve core (F3) can rotate in the sealing sleeve (F4). A bushing (F5) is fitted onto one end of one of the cylinders of the valve core (F3), and the bushing (F5) is embedded in the valve base (F1) and the valve top cover (F2) respectively; The adapter shaft (F6) is a stepped shaft. One end of the adapter shaft (F6) has a square hole, and the other end has a connecting hole. One end of the adapter shaft (F6) is embedded in the semi-circular stepped hole one of the valve base (F1) and the semi-circular stepped hole two of the valve top cover (F2). The end of the adapter shaft (F6) with the square hole is fitted onto the square prism of one of the cylinders of the valve core (F3). The cylinder shaft (F9) of the rotary cylinder reciprocates within the cylinder body (F10). The outer end of the cylinder shaft (F9) is milled with a keyway. The cylinder shaft (F9) rotates at an angle of 90°. The cylinder shaft (F9) is fixedly connected to the connecting hole of the adapter shaft (F6). The cylinder body (F10) is fixed on the end face of the semi-cylinder one of the valve base (F1) and the semi-cylinder two of the valve top cover (F2); the valve core (F3) and the adapter shaft (F6) are radially connected by the set screw (F7); quick connector one (F12) and quick connector two (F13) are installed on the cylinder body (F10) and communicate with the inner cavity of the cylinder body (F10).

4. The double-row shared seed collection device for a plot planter according to claim 1, characterized in that: The dual-row shared seed collection device for the community seeder also includes an electrical interface component (8); the electrical interface component (8) includes an electrical interface socket (81), a negative pressure sensor (82), a seed quantity sensor (83), a seed quantity sensor interface (84), and an LED light strip interface (85). An electrical interface socket (81) is installed on the top surface of the bottle body (11). The electrical interface socket (81) has three internal threaded holes. The top surface of the bottle body (11) is provided with through holes three corresponding to the three internal threaded holes. The negative pressure sensor (82), the seed quantity sensor interface (84), and the LED light strip interface (85) are respectively fastened to the three internal threaded holes of the electrical interface socket (81) by threaded connection. The seed quantity sensor (83) is fastened to the inside of the seed quantity sensor interface (84) by threaded connection. The seed quantity sensor (83) and the negative pressure sensor (82) are respectively connected to the control system signal.

5. A special double-row seed collection device for a small-area seeder according to claim 1, characterized in that: The distance between the top of the partition (111) and the inner top surface of the bottle body (11) is 37mm.

6. A special double-row seed collection device for a small-area seeder according to claim 1, characterized in that: The bottom cover (14) is a circular piece. One end of the bottom cover (14) is hinged to the bottle mouth, and the other end of the bottom cover (14) is locked to the bottle mouth of the bottle body (11) by means of a metal buckle.

7. A special double-row seed collection device for a small-area seeder according to claim 1, characterized in that: The bottle assembly (1) also includes a support column (118); a support column (118) is provided at the center between the partition (111) and the right end of the bottle body (11), and the two ends of the support column (118) are fixedly connected to the front and rear inner walls of the bottle body (11).

8. A special double-row seed collection device for a small-area seeder according to claim 3, characterized in that: The pneumatic disc valve assembly also includes a sealing ring (F11); the other end face of the cylinder of the valve base (F1) is provided with an annular groove, and the sealing ring (F11) is embedded in the annular groove.

9. A special double-row seed collection device for a small-area seeder according to claim 4, characterized in that: The special double-row seed collection device for the community seeder also includes an LED light strip (15); the LED light strip (15) is fixed inside the top of the bottle body (11), and the LED light strip interface (85) is connected to the lead cable of the LED light strip (15) control system.

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