Double row precision seed drill

Abstract

The application discloses a double-row precision seeder, which comprises replaceable seeding discs, seeding disc baffles, a base, a bottom disc, a seeder shell, a seeding cover, plug-in baffles, roller brushes and industrial locks; the replaceable seeding discs and the seeding disc baffles are sequentially installed on the center of the bottom disc from bottom to top, and the base and the bottom disc are rotationally installed; the seeder shell is installed on the upside of the base, and the industrial locks connect the seeder shell and the bottom disc through bolts and nuts; the long hairs of the industrial brushes of the roller brushes are in contact with the upper surfaces of the replaceable seeding discs; the plug-in baffles are installed in the square through holes of the bosses of the base from the downside, the bottom surfaces of the plug-in baffles are close to the upper surfaces of the replaceable seeding discs, and the seeds entering the seed holes of the replaceable seeding discs are prevented from entering the covered area of the fan ring type shroud of the seeder shell. Two roller brushes are installed on the base, and the replaceable seeding discs and the seeding disc baffles can realize double-row seeding of the seeds, and meanwhile, the seeding row distance is ensured without increasing the overall size of the structure.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically a double-row precision seeder. Background Technology

[0002] With societal development, traditional manual sowing has gradually been phased out and replaced by mechanical sowing, which requires the use of seeders. Seeders are one of the most basic production tools in agricultural production, and the seed metering device is a key component of seeding machinery.

[0003] Commonly used seeders include pneumatic seeders and mechanical seeders. Pneumatic seeders use air pressure to adhere seeds to the seed tray, releasing pressure upon reaching the sowing position. While this type of seeder offers high sowing accuracy, its complex structure results in high cost and a tendency to malfunction. Traditional mechanical seeders are simple in structure, reliable, and inexpensive, but they rely primarily on seed weight to fill the seed holes, limiting the filling speed and affecting the seed metering frequency. This leads to seed jamming, missed sowing, and low sowing accuracy. Furthermore, traditional mechanical seeders require specialized seeders for different seeds, making preparation cumbersome. In addition, most current seeders are single-row seeders; multi-row seeding requires multiple seeders working together, resulting in excessively large and cumbersome equipment, unsuitable for mountainous terrain like my country.

[0004] The utility model patent with application number 202120360451.1 discloses a double-row precision seeder equipped with a DC brushless fan. The seeder includes a double-row seeder, and the air inlet of the DC brushless fan is connected to the arc-shaped exhaust cavity. The DC brushless fan draws air in through the seeding hole to suck up the seeds. However, it will also attract other impurities to block the seeding hole, affecting the normal operation of the seeder. In addition, its structure is complex and difficult to maintain.

[0005] The invention patent with application number 202111658631.9 discloses a dual-adjustment seed metering device that adjusts both the seeding amount and the seed spacing. The seeder includes a support plate, an upper plate, an arc-shaped seed box, and a seed box limiting cover. The seeding amount and the seed spacing can be adjusted by adjusting the seed spacing adjustment knob. However, the adjustment structure is complex and prone to failure, resulting in low seeding accuracy. In addition, the seeder can only seed in a single row. Double-row seeding can only be achieved by having two devices working simultaneously, which leads to a large overall size and high space requirements for other equipment. Summary of the Invention

[0006] In view of this problem, the present invention provides a double-row precision seeder to solve the problems of inaccurate precision seeding, convenient equipment maintenance, and double-row seeding in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A double-row precision seeder includes a replaceable seeding disc, a seeding disc baffle, a base, a chassis, a seeder housing, a roller brush, a pluggable baffle, a seeding cover, and an industrial lock.

[0009] The center of the chassis is equipped with a seeding tray baffle 10 and a replaceable seeding tray 9 from bottom to top. The base 3 and chassis 4 are rotatably installed to enable the seeder to be closed and opened.

[0010] The seeder housing 2 is mounted on the upper side of the base 3, and the industrial lock 5 connects the seeder housing 2 to the chassis 4 with bolts and nuts; the seeding cover 1 is mounted on the upper side of the seeder housing 2, and the center of the seeding cover 1 is provided with a through hole for putting seeds into the seeder.

[0011] The base 3 has an upwardly protruding frustum 3.1 at its center, allowing the seeds in the seeder to roll down the side of the frustum 3.1 under their own weight onto the replaceable seeding tray 9. Four protrusions 3.2 are evenly distributed circumferentially on the side of the frustum 3.1, and the frustum is connected to the inner wall of the base 3 through the four protrusions 3.2. Each protrusion 3.2 has a square through hole in its center for installing a plug-in baffle 7. A recess 3.3 is provided in the side area of ​​the frustum between two adjacent protrusions, with a total of two recesses 3.3 arranged symmetrically. The recesses are used to install the roller brush 6. The lower end of the frustum 3.1 does not obstruct the seed hole and can be supported on the replaceable seeding tray. A lower annular protrusion 3.6 is provided on the lower surface of the base, and a fan-shaped recess 3.7 is provided on the lower annular protrusion.

[0012] The replaceable seeding disc is a series of discs with the same outer diameter and thickness. The discs have a circular hole of the same size in the center to connect to the rotating shaft. One end of the rotating shaft cooperates with the bearing seat installed on the lower surface of the base 3 to realize the transmission of power. A number of seed holes are provided along the circumferential direction on the edge of the disc end face. The seed holes of different replaceable seeding discs have different diameters. By replacing the replaceable seeding disc, seeds of different shapes and sizes can be sown. A circular boss 9.1 is provided in the area between the circular hole 9.3 in the center of the disc and the seed hole 9.2.

[0013] The lower end of the truncated cone of the base rests on the replaceable seeding tray 9 between the circular protrusion of the replaceable seeding tray 9 and the seed hole;

[0014] The upper surface of the base is provided with an upper circular boss 3.4. The upper circular boss 3.4 has two square recesses 3.5 symmetrically arranged near the location of the recess 3.3. The square recesses 3.5 are used to install the roller brush cover 8.

[0015] The seeding tray baffle 10 and the replaceable seeding tray have the same outer diameter. The center of the seeding tray baffle 10 is provided with an opening 10.1 that matches the circular boss of the replaceable seeding tray. The opening 10.1 accommodates the circular boss of the replaceable seeding tray. Two symmetrically arranged fan-shaped holes 10.2 are arranged at the same diameter position as the seed holes of the replaceable seeding tray outside the opening. When the seed holes of the replaceable seeding tray are opposite to the fan-shaped holes 10.2, the seeds in the seed holes of the replaceable seeding tray fall. The outer surface of the seeding tray baffle 10 is provided with a fan-shaped boss 10.3, which matches the fan-shaped recess 3.7 of the base 3 to realize the locking of the seeding tray baffle 10.

[0016] The long bristles of the industrial brush 6.2 of the roller brush 6 are in contact with the upper surface of the replaceable seeding tray 9;

[0017] The lower side of the plug-in baffle is installed in the square through hole of the boss 3.2 of the base. The bottom surface of the plug-in baffle is close to the upper surface of the replaceable seeding tray, preventing seeds entering the seed hole of the replaceable seeding tray from entering the coverage area of ​​the fan-shaped protective cover 2.1 of the seeder housing 2.

[0018] The insertion and removal baffle includes an upper annular plate and a lower rectangular plate. The annular plate provides a working space for the installation tool. The front and back of the lower rectangular plate have semi-circular protrusions 7.1 and cylindrical recesses 7.2, which engage with the corresponding protrusions and recesses on the inner wall of the square through hole of the base to fix the insertion and removal baffle.

[0019] The seed holes are round or elliptical. Seeds enter the seed holes under their own weight and the squeezing force between seeds, thus filling the replaceable seeding tray with seeds.

[0020] The roller brush includes an industrial brush and a mounting platform. The industrial brush is mounted on the mounting platform, which is a square boss with a shaft on the front and a cross protrusion at the end of the shaft, which contacts the semi-cross recess of the base and the semi-cross recess of the roller brush cover.

[0021] The seeder housing has a square protrusion on the front for use with an industrial lock. The inner side of the upper surface of the seeder housing has a circular protrusion for use with the seeder cover. The outer side of the upper surface of the seeder housing has four recesses arranged at equal angles for fixing to the base with bolts. The inner wall of the seeder housing has two symmetrically arranged fan-shaped protective covers for protecting the roller brush.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The present invention uses a replaceable seeding disc, a pluggable baffle, and a roller brush to solve the problems of seed jamming and missed sowing, thereby improving the sowing accuracy.

[0024] This invention features two roller brushes mounted on the base, which, together with a replaceable seeding tray and a seeding tray baffle, enable double-row seeding, improving seeding efficiency. The structure and accessories of this invention do not affect the internal space of the seeder, and therefore do not affect the seed storage capacity inside the seeder. At the same time, the two roller brushes ensure the seeding row spacing without increasing the overall size of the structure.

[0025] The present invention is equipped with an industrial lock to fix the seeder housing, base and chassis together, which can lock the various parts of the seeder and prevent the seeder from accidentally opening during operation and failing to work properly.

[0026] This invention utilizes a replaceable seeding tray, which allows for the sowing of various types of seeds by replacing the seeding tray with one of different shapes and sizes of seed holes, thus increasing its applicability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a double-row precision seeder according to the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of the seeder shell in this invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of a double-row precision seeder according to the present invention;

[0030] Figure 4 This is a three-dimensional structural diagram of the plug-in baffle (left and middle) and the roller brush (right) in this invention.

[0031] Figure 5 This is a three-dimensional structural diagram of the replaceable seeding tray in this invention.

[0032] Figure 6 This is a three-dimensional structural diagram of the seeding tray baffle in this invention.

[0033] Figure 7 This is a schematic diagram of the installation structure of the replaceable seeding tray and seeding tray baffle in this invention.

[0034] Figure 8 This is a three-dimensional structural diagram of the base in this invention.

[0035] Figure 9 This is a three-dimensional structural diagram of the base in this invention.

[0036] Figure 10 This is a three-dimensional structural diagram of the chassis in this invention.

[0037] Figure 11 This is a three-dimensional structural diagram of the roller brush cover in this invention.

[0038] Explanation of reference numerals in the attached diagram: 1 Seeding cover, 2 Seeder housing, 3 Base, 4 Chassis, 5 Industrial lock, 6 Roller brush, 6.1 Mounting platform, 6.2 Industrial brush, 7 Plug-in baffle, 8 Roller brush cover, 9 Replaceable seeding tray, 10 Seeding tray baffle;

[0039] 3.1 Frustum, 3.2 Boss, 3.3 Recess, 3.4 Upper Ring Boss, 3.5 Square Recess, 3.6 Lower Ring Boss, 3.7 Fan Ring Recess, 4.1 Circular Recess, 4.2 Fan Ring Through Hole, 6.2 Industrial Brush, 6.1 Mounting Platform, 8.1 Semi-Cross Recess, 9.3 Circular Hole, 9.2 Circular Boss, 9.1 Opening, 10.1 Fan Ring Hole, 10.2 Fan Ring Boss, 10.3 Detailed Implementation

[0040] Specific embodiments are given below with reference to the accompanying drawings. These specific embodiments are only used to illustrate the technical solutions of the present invention in detail, and are not intended to limit the scope of protection of this application.

[0041] This invention relates to a double-row precision seeder (hereinafter referred to as the seeder, see [link]). Figures 1-6 The device includes a seeding cover 1, a seeder housing 2, a base 3, a chassis 4, and an industrial lock 5. The industrial lock 5 and the seeder housing 2 are connected to the chassis 4 by bolts and nuts.

[0042] The seeder is a hollow cylinder. The seeding cover 1 is installed on the upper side of the seeder housing 2. The center of the seeding cover 1 is a concave truncated cone with a through hole for placing seeds inside the seeder. The seeder housing 2 is installed on the upper side of the base 3. Two fan-shaped protective covers are symmetrically arranged on the inner wall of the seeder housing 2. The fan-shaped protective covers are located above the area where the roller brush is located, providing a working area for the roller brush and preventing seeds from directly reaching the vicinity of the roller brush and interfering with the normal operation of the seeder. From bottom to top, the center of the chassis is installed with a seeding tray baffle 10 and a replaceable seeding tray 9. The base 3 and chassis 4 are rotatably installed and can rotate relative to each other at a certain angle. Rotating outwards opens the seeder to install and replace the replaceable seeding tray 9 and the seeding tray baffle 10, while rotating inwards closes the seeder for operation.

[0043] Base 3 (see) Figure 8 and Figure 9The device features a centrally located, upward-protruding frustum 3.1, allowing seeds inside the seeder to roll down along the side of the frustum 3.1 (which has a smaller diameter at the top and a larger diameter at the bottom, resulting in a sloping side) onto the replaceable seeding tray 9 under its own weight. Four protrusions 3.2 are evenly distributed circumferentially on the side of the frustum 3.1, connecting the frustum to the inner wall of the base 3. Each protrusion 3.2 has a square through-hole in its center for installing a plug-in baffle 7. Two recesses 3.3 are symmetrically arranged on the side of the frustum between adjacent protrusions, used for installing a roller brush 6. The lower end of the frustum 3.1 does not obstruct the seed hole and can be supported on the replaceable seeding tray. The lower end of the frustum rests on the replaceable seeding tray 9 between the circular protrusions and the seed hole.

[0044] The upper surface of the base is provided with an upper circular boss 3.4. The upper circular boss 3.4 has two square recesses 3.5 symmetrically arranged near the location of the recess 3.3. The square recesses 3.5 are used to install the roller brush cover 8.

[0045] A lower circular protrusion 3.6 is provided on the lower surface of the base, and a fan-shaped recess 3.7 is provided on the lower circular protrusion. The fan-shaped recess and the fan-shaped protrusion 10.3 on the outer surface of the seeding tray baffle 10 cooperate to realize the positioning of the seeding tray baffle 10.

[0046] The lower surface of the base is provided with a bearing housing mounting hole 3.8. The bearing housing is installed by bolts and nuts, and the bearing housing can realize the installation of the rotating shaft.

[0047] The replaceable seeding tray (see...) Figure 5 The system consists of a series of discs with the same outer diameter and thickness. Each disc has a central hole of the same size for connecting a rotating shaft. The rotating shaft and the replaceable seeding disc 9 are interference-fitted. One end of the rotating shaft engages with a bearing seat mounted on the lower surface of the base 3 to transmit power. The other end of the rotating shaft is connected to a motor via a bevel gear, which drives the shaft to rotate. The roller brush has no power and rotates passively with the replacement seeding disc 9. A number of seed holes are arranged circumferentially along the edge of the disc end face. These seed holes can be circular, elliptical, or other shapes. Seeds enter the seed holes under their own weight and the pressure between seeds, thus filling the replaceable seeding disc. Different replaceable seeding discs have different seed hole diameters, allowing for the sowing of seeds of different shapes and sizes by changing the replaceable seeding disc. A circular boss 9.1 is provided in the area between the central hole 9.3 and the seed hole 9.2 of the disc. The circular boss 9.1 facilitates the coaxial installation of the replaceable seeding disc and the seeding disc baffle, improving installation accuracy. After installation, the hole and the circular boss are coaxially aligned.

[0048] In this invention, the installation position of the motor and the length of the shaft can be flexibly adjusted according to the working conditions.

[0049] Seeding tray baffle 10 (see Figure 6 The seed tray baffle 10 has the same outer diameter as the replaceable seeding tray. A central opening 10.1 is provided to mate with the circular boss of the replaceable seeding tray. The opening 10.1 can accommodate the circular boss of the replaceable seeding tray. Two symmetrically arranged fan-shaped holes 10.2 are positioned on the outer side of the opening at a position equal in diameter to the seed holes of the replaceable seeding tray. When the seed holes of the replaceable seeding tray are aligned with the fan-shaped holes 10.2, seeds fall from the seed holes of the replaceable seeding tray. A fan-shaped boss 10.3 is provided on the outer surface of the seed tray baffle 10, which can mate with the fan-shaped recess 3.7 of the base 3 to achieve the locking position of the seed tray baffle 10.

[0050] The chassis 4 (see Figure 10 The upper surface has a circular recess 4.1 with the same outer diameter as the replaceable seeding tray to accommodate the replaceable seeding tray 9 and the seeding tray baffle 10. On the upper surface of the circular recess, there is a pair of symmetrically arranged fan-shaped through holes 4.2. The fan-shaped through holes 4.2 on the bottom plate are opposite to the fan-shaped holes 10.2 on the seeding tray baffle to allow the seeds to fall.

[0051] The roller brush 6 includes an industrial brush 6.2 and a mounting platform 6.1. The industrial brush 6.2 is rotatably mounted on the extended shaft of the mounting platform 6.1. The front end of the extended shaft of the mounting platform has a cross-shaped protrusion, which is installed on the square recess 3.5 of the base in conjunction with the roller brush cover 8. After installation, the long bristles of the industrial brush 6.2 contact the upper surface of the replaceable seeding tray 9, so that when the seeds in the replaceable seeding tray are stuck in the seed hole, the soft bristles of the industrial brush can safely push the seeds out of the seed hole, solving the problem of seed jamming in the seeder without damaging the seeds.

[0052] The roller brush cover 8 (see) Figure 11 The upper surface has countersunk holes, allowing the roller brush cover 8 to be mounted on the square recess 3.5 on the upper surface of the base 3 by screws. The lower surface of the roller brush cover has a semi-cross recess 8.1 on one side, which is used to match the semi-cross recess next to the square recess 3.5 of the base 3 to install the cross protrusion of the shaft extending from the mounting platform 6.1 of the roller brush 6, thus realizing the installation of the roller brush 6.

[0053] The insertion / removal baffle 7 includes an upper annular plate and a lower rectangular plate. The annular plate provides working space for installation tools such as pliers, facilitating the installation of the insertion / removal baffle, and serves as a circular handle. The lower side of the insertion / removal baffle is installed in the square through hole of the boss 3.2 of the base. The bottom surface of the insertion / removal baffle is close to the upper surface of the replaceable seeding tray, preventing seeds entering the seed holes of the replaceable seeding tray from entering the fan-shaped protective cover 2.1 of the seeder housing 2. The front and back sides of the lower rectangular plate of the insertion / removal baffle have semi-circular bosses 7.1 and cylindrical recesses 7.2, respectively, which engage with the corresponding protrusions and recesses on the inner wall of the square through hole of the base to fix the insertion / removal baffle. Protrusions are provided on the inner wall of the square through hole. The insertion / removal baffle 7 is made of a soft material such as rubber, and its surface can deform to a certain extent. The presence of the protrusions will not obstruct the entry of the insertion / removal baffle 7.

[0054] The seeder housing has a square protrusion on the front for use with an industrial lock. The inner side of the upper surface of the seeder housing has a circular protrusion for use with the seeder cover. The outer side of the upper surface of the seeder housing has four recesses arranged at equal angles for fixing to the base 3 with bolts. The inner wall of the seeder housing has two symmetrically arranged fan-shaped protective covers for protecting the roller brush.

[0055] The working principle and workflow of this invention are as follows:

[0056] The user selects the appropriate replaceable seeding tray 9 according to the type of seeds to be sown, loosens the industrial lock 5, opens the base 3 and chassis 4, installs the selected replaceable seeding tray 9 and seeding tray baffle 10, then closes the base 3 and chassis 4 and locks the industrial lock 5 to complete the installation of the seeder.

[0057] The user inserts seeds into the seeder through the through-hole in the center of the seeding cover 1. The seeds fall onto the truncated cone 3.1 of the base 3. The seeds around the cone slide down the inclined surface of the cone under their own weight and the pressure from each other onto the replaceable seeding tray 9. Some seeds enter the seed holes on the replaceable seeding tray 9, while the remaining seeds stay on the replaceable seeding tray 9 waiting for an available seed hole. During installation, the fan-shaped annular hole 10.2 on the seeding tray baffle 10, the fan-shaped annular through-hole 4.2 on the base 4, and the roller brush 6 are located in the same position, allowing the seeds to enter... The seeds in the seed holes are supported by the seed tray baffle 10 and rotate with the replaceable seed tray 9 to the position of the roller brush 6 inside the fan-shaped protective cover of the seeder housing 1. Here, the seed tray baffle 10 has fan-shaped holes and no longer supports the seeds. Due to their own gravity, the seeds fall from the seed holes of the replaceable seed tray 9 along the fan-shaped holes of the seed tray baffle 10 and the base plate 4. Seeds stuck in the seed holes of the replaceable seed tray 9 are pushed out of the seed holes by the industrial brush 6.2 of the roller brush 6, so that the seeds are not stuck, and the entire sowing process is completed.

[0058] The core of this invention is the hardware structure and the connection relationship between the components. The industrial latches and other related contents mentioned above are all existing technologies and will not be described in detail here.

[0059] Any aspects not covered in this invention are applicable to existing technologies.

Claims

1. A double-row precision seeder, characterized in that, Includes replaceable seeding tray, seeding tray baffle, base, chassis, seeder housing, roller brush, plug-in baffle, seeding cover and industrial lock; The base and the chassis are installed sequentially from bottom to top at the center of the chassis, with a seeding tray baffle and a replaceable seeding tray installed in rotation to open and close the seeder. The seeder housing is mounted on the upper side of the base, and an industrial lock connects the seeder housing to the chassis with bolts and nuts; the seeding cover is mounted on the upper side of the seeder housing, and a through hole is provided in the center of the seeding cover for putting seeds into the seeder. The base has an upward-protruding truncated cone at its center, allowing the seeds inside the seeder to roll down the side of the cone under their own weight onto the replaceable seeding tray. Four protrusions are evenly distributed circumferentially on the side of the truncated cone, connecting it to the inner wall of the base. Each protrusion has a square through-hole in its center for installing a plug-in baffle. Two recesses are provided on the side of the truncated cone between adjacent protrusions, arranged symmetrically, for installing a roller brush. The lower end of the truncated cone does not obstruct the seed holes and can be supported on the replaceable seeding tray. A lower annular protrusion with a fan-shaped recess is provided on the lower surface of the base. The replaceable seeding disc consists of a series of discs with the same outer diameter and thickness. The discs have a circular hole of the same size in the center to connect to the rotating shaft. One end of the rotating shaft cooperates with a bearing seat installed on the lower surface of the base to realize the transmission of power. A number of seed holes are provided along the circumferential direction on the edge of the disc end face. The seed holes of different replaceable seeding discs have different diameters, and different shapes and sizes of seeds can be sown by replacing the replaceable seeding discs. A circular boss is provided in the area between the circular hole in the center of the disc and the seed holes. The lower end of the truncated cone of the base rests on the replaceable seeding tray between the circular protrusion of the replaceable seeding tray and the seed hole; The upper surface of the base is provided with an upper circular boss, and the upper circular boss has two square recesses symmetrically arranged near the recessed position. The square recesses are used to install the top cover of the roller brush. The seeding tray baffle and the replaceable seeding tray have the same outer diameter. The center of the seeding tray baffle is provided with an opening that matches the circular boss of the replaceable seeding tray. The opening accommodates the circular boss of the replaceable seeding tray. Two symmetrically arranged fan-shaped holes are arranged at the same diameter position as the seed holes of the replaceable seeding tray outside the opening. When the seed holes of the replaceable seeding tray are aligned with the fan-shaped holes, the seeds in the seed holes of the replaceable seeding tray fall down. The outer surface of the seeding tray baffle is provided with a fan-shaped boss that matches the fan-shaped recess of the base to achieve the locking of the seeding tray baffle. The long bristles of the industrial brush of the roller brush are in contact with the upper surface of the replaceable seeding tray. The lower side of the plug-in baffle is installed in the square through hole of the boss of the base. The bottom surface of the plug-in baffle is close to the upper surface of the replaceable seeding tray, preventing the seeds entering the seed hole of the replaceable seeding tray from entering the coverage area of ​​the fan-shaped protective cover of the seeder housing. The inner wall of the seeder's outer shell is provided with two symmetrically arranged fan-shaped protective covers.

2. The double-row precision seeder according to claim 1, characterized in that, The insertion / removal baffle includes an upper annular plate and a lower rectangular plate. The upper annular plate provides a working space for the installation tool, and the front and back of the lower rectangular plate have semi-circular bosses and cylindrical recesses, respectively. These engage with the corresponding protrusions and recesses on the inner wall of the square through hole of the base to fix the insertion / removal baffle.

3. The double-row precision seeder according to claim 1, characterized in that, The seed holes are round or elliptical. Seeds enter the seed holes under their own weight and the squeezing force between seeds, thus filling the replaceable seeding tray with seeds.

4. The double-row precision seeder according to claim 1, characterized in that, The roller brush includes an industrial brush and a mounting platform. The industrial brush is mounted on the mounting platform, which is a square boss. The square boss has a shaft on its front side and a cross protrusion at the end of the shaft, which contacts the semi-cross recess of the base and the semi-cross recess of the roller brush cover.

5. The double-row precision seeder according to claim 1, characterized in that, The front of the seeder housing has a square protrusion that mates with an industrial lock. The inner side of the upper surface of the seeder housing has an annular protrusion for mates with the seeder cover. The outer side of the upper surface of the seeder housing has four recesses arranged at equal angles for fixing to the base with bolts.

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