Sand-preventing sowing device for cistanche without trenching

Abstract

The present application relates to a kind of sand-preventing seeders of free ditching Cistanche, belong to agricultural seeding equipment technical field, technical scheme includes seeding disc, seeding wheel, seed tube and sand-preventing mechanism, seeding disc is coaxially installed with rotatable component seeding wheel, seed tube is equipped with sand-preventing mechanism, four identical seed tubes are rotationally symmetrical and are uniformly fixed to the outer wall of seeding wheel, when the device works, the rotation of seeding wheel around seeding disc can be converted into the movement of sand-preventing rod in seed tube by the rolling of roller along the annular guide rail groove with different curvatures, the design of the installation interval of sand-preventing plate 1 and sand-preventing plate 2 ensures that seed is always blocked by sand-preventing plate in the process of discharging, and sand-preventing effect is achieved.A kind of sand-preventing seeder of free ditching Cistanche effectively solves the problem that large power loss is caused by the need of seeder to dig ditch in sandy land during Cistanche seeding, solves the problem of backflow and blockage of seed tube after seed tube enters sand, and guarantees the stability and effectiveness of Cistanche seeding.

Description

Technical Field

[0001] This invention relates to a trenchless sand-prevention sowing device for Cistanche deserticola, belonging to the field of agricultural sowing equipment technology. Background Technology

[0002] Cistanche deserticola, also known as Cistanche tubulosa, is a perennial parasitic herb that primarily parasitizes the roots of desert and arid plants such as Haloxylon ammodendron and Tamarix chinensis. It is a Class II protected plant in China, mainly produced in Xinjiang, Inner Mongolia, Gansu, and Ningxia. Cistanche deserticola possesses extremely high medicinal value and is known as "desert ginseng." Due to its demanding and complex growing conditions, wild Cistanche deserticola can no longer meet the significant market demand, leading to a continuous expansion of artificial cultivation in recent years. However, since sowing still relies on manual labor, problems such as low sowing efficiency, low uniformity, and inaccurate control of sowing quantity exist, necessitating the development of a more efficient sowing device.

[0003] With the development of agricultural machinery in my country, a patent with authorization number CN215345775U discloses an integrated liquid inoculation machine for Cistanche deserticola. This inoculation machine can spray Cistanche deserticola seeds mixed with liquid inoculant from a mixing tank by controlling a pump, thereby achieving sowing. However, it can only achieve relatively uniform sowing by controlling the uniformity of the liquid inoculant mixture, and it cannot sow pelleted Cistanche deserticola seeds.

[0004] The invention presents an innovative design for a non-ditching sand-preventing sowing device for Cistanche deserticola, which has the advantage of continuous sowing without the need for trenching. It effectively solves the problems of high power loss caused by trenching in sandy areas and the problem of sand backflow clogging the seed pipe when sowing in sandy areas, thereby improving sowing efficiency and promoting the development of mechanized and standardized Cistanche deserticola cultivation industry. Summary of the Invention

[0005] The purpose of this invention is to provide a trenchless Cistanche deserticola sand-prevention sowing device, which provides a sand-prevention sowing operation device for Cistanche deserticola sowing in sandy areas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: the seeding tray (1) and the rotatable seeding wheel (2) are coaxially installed, the seeding tube (3) is equipped with a sand-prevention mechanism (4), and four identical seeding tubes (3) are rotated symmetrically and evenly distributed and fixed to the outer peripheral wall of the seeding wheel (2) to form a trenchless sand-prevention seeding device for Cistanche deserticola.

[0007] The seeding tray (1) has a basin-shaped structure with a basin rim and a cavity (11) in the center. The cavity (11) is divided into 1'-8' division lines in the circumferential direction and in the counterclockwise direction. The lower left division line is defined as the 1' division line. The inner side of the cavity (11) is provided with a seed storage port (12) for temporarily storing seeds falling from the seed box at the 1' division line. The cavity (11) is connected to the external seed box. The center of the seeding tray (1) has a keyless connecting shaft through hole (13). The end face of the basin rim is provided with four annular guide rail grooves (14) with different curvatures and tangent to each other.

[0008] The seeding wheel (2) has a keyway connecting hole (21) at its center. The non-keyway connecting hole (13) has the same diameter as the keyway connecting hole (21) and is installed on the same drive shaft.

[0009] The seed metering tube (3) has an h-shaped seed metering cavity (31) inside. The cross-sectional size of the seed metering cavity (31) is the same as that of the seed storage port (12). As the seed metering tube (3) rotates, the inner cavity of the seed metering cavity (31) can be aligned with the seed storage port (12). The root of the seed metering tube (3) is provided with an installation hole (32) on the side wall near the annular guide groove (14). The top of the sand prevention mechanism (4) extends out of the installation hole (32), and the main body is located in the seed metering cavity (31) and moves along the cavity.

[0010] The main body of the sand-proof mechanism (4) is a sand-proof rod (43) with a roller (41) and a shaft (42) at the top. The width of the roller (41) is the same as the depth of the annular guide groove (14) and it can rotate around the shaft (42) in the annular guide groove (14). The shaft (42) is fixedly installed at the top of the sand-proof rod (43) of the sand-proof mechanism (4). The sand-proof plate I (44) and sand-proof plate II (45) fixed at the bottom are connected by a bracket (46). The bracket (46) is provided with a sand passage hole (47) in the middle, and the sand-proof plate I (44) and sand-proof plate II (45) are connected by a sand passage hole (47). A seed storage trough (48) is formed between the sand plates II (45); when the seeding wheel (2) and its fixed seed discharge pipe (3) rotate and drive the anti-sand rod (43) to rotate, the roller (41) rotates around the shaft (42) and rolls along the annular guide groove (14); due to the different curvatures of each section of the annular guide groove (14), the anti-sand rod (43) moves in the seed discharge cavity (31), and when the seed storage trough (48) extends, it can push the seeds out of the seed discharge pipe (3) and discharge the seeds out of the seed storage trough (48) through the sand flowing in the sand passage hole (47).

[0011] Specifically, the length of the mounting hole (32), the maximum difference in distance from each curve of the annular guide rail groove (14) to the center point of the seeding tray (1), and the installation spacing of the sand-proof plate I (44) and the sand-proof plate II (45) are all equal.

[0012] Specifically, the seeding wheel (2) drives the seed metering tube (3) to rotate and insert into the sand. When the seed metering tube (3) rotates to the 1' position, the inner opening of the seed metering chamber (31) coincides with the seed storage port (12). The seeds stored in the seed storage port (12) will fall into the seed metering chamber (31) under the action of gravity and fall into the seed storage trough (48). When the seed metering tube (3) rotates to the 2' position, the sand-proof plate I (44) extends completely out of the seed metering tube (3), and the seeds in the seed storage trough (48) are pushed out of the seed metering tube (3). The sand-proof plate II (45) is located at the opening of the seed metering tube (3) and blocks the flow of sand. Sand enters the seed dispensing chamber (31), effectively preventing sand from entering. When the seed dispensing tube (3) is located between the 2' and 3' positions, the flowing sand passes through the sand passage (47) and flows into the seed storage trough (48), pushing the seeds into the sowing position. When the seed dispensing tube (3) is located between the 3' and 5' positions, the sand-prevention plate I (44) is fully extended. When the seed dispensing tube (3) is located between the 5' and 7' positions, the sand-prevention plate I (44) is in the retraction process. When the seed dispensing tube (3) is located between the 7' and 1' positions, the sand-prevention plate I (44) is at the opening of the seed dispensing tube (3).

[0013] The beneficial effects of this invention are as follows: 1. It proposes a trenchless sand-prevention sowing device for Cistanche deserticola, which effectively solves the problem of large power loss caused by the need for the seeder to dig trenches in sandy areas when sowing Cistanche deserticola; 2. It solves the problem of sand backflow clogging the seed metering pipe after it enters the sand during sowing; 3. A trenchless sand-prevention sowing device for Cistanche deserticola ensures the stability and effectiveness of Cistanche deserticola sowing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the seeding device described in this invention.

[0015] Figure 2 This is a cross-sectional view of the seeding device described in this invention.

[0016] Figure 3 This is a schematic diagram of the sowing zone as described in this invention.

[0017] Figure 4 This is a schematic diagram of the sand-prevention mechanism described in this invention.

[0018] Figure 5 This is a schematic diagram of the seed-dropping process of the seeding device described in this invention.

[0019] In the diagram, 1: Seeding tray; 2: Seeding wheel; 3: Seed metering tube; 4: Sand prevention mechanism; 11: Cavity; 12: Seed storage port; 13: Keyless shaft through hole; 14: Annular guide rail groove; 21: Keyway shaft through hole; 31: Seed metering cavity; 32: Mounting hole; 41: Roller; 42: Shaft; 43: Sand prevention rod; 44: Sand prevention plate I; 45: Sand prevention plate II; 46: Support; 47: Sand passage hole; 48: Seed storage trough. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0021] Figure 1 The shown is a non-ditching type sand-preventing sowing device for Cistanche deserticola, which consists of four parts: a sowing disc (1), a sowing wheel (2), a seed metering tube (3), and a sand-preventing mechanism (4). The sowing disc (1) is coaxially installed with the rotatable sowing wheel (2). The sand-preventing mechanism (4) is installed inside the seed metering tube (3). The four identical seed metering tubes (3) are rotated symmetrically and evenly distributed and fixed to the outer peripheral wall of the sowing wheel (2).

[0022] Figure 2 , 3 In the shown non-ditching Cistanche deserticola sand-prevention sowing device, the sowing tray (1) has a basin-shaped structure with a basin rim and a cavity (11) in the center. The cavity (11) is divided into 1'-8' division lines in the circumferential direction and counterclockwise direction. The lower left division line is defined as the 1' division line. The inner wall of the cavity (11) is provided with a seed storage port (12) for temporarily storing seeds falling from the seed box at the 1' division line. The cavity (11) is connected to the external seed box. The center of the sowing tray (1) has a keyless shaft connecting through hole (13). The end face of the basin rim has four annular guide rail grooves (14) with different curvatures and tangent to each other. The center of the sowing wheel (2) has a keyway connecting through hole (21). The keyless shaft connecting through hole (13) and the keyway connecting through hole (21) have the same diameter and are installed on the same drive shaft. The seed metering tube (3) has an h-shaped seed metering cavity (31) inside. The cross-sectional size of the seed metering cavity (31) is the same as that of the seed storage port (12). As the seed metering tube (3) rotates, the inner opening of the seed metering cavity (31) can be aligned with the seed storage port (12). The root of the seed metering tube (3) has an installation hole (32) on the side wall near the annular guide groove (14). The top of the sand prevention mechanism (4) extends out of the installation hole (32), and its main body is located in the seed metering cavity (31) and moves along the cavity. The length of the installation hole (32) is equal to the maximum difference between the distances from each curve of the annular guide groove (14) to the center point of the seeding tray (1).

[0023] Figure 4In the schematic diagram of the sand-prevention mechanism shown, the main body of the sand-prevention mechanism (4) is a sand-prevention rod (43) with a roller (41) and a shaft (42) at the top. The width of the roller (41) is the same as the depth of the annular guide groove (14) and it can rotate around the shaft (42) in the annular guide groove (14). The shaft (42) is fixedly installed at the top of the sand-prevention rod (43) of the sand-prevention mechanism (4). The sand-prevention plate I (44) and sand-prevention plate II (45) fixed at the bottom are connected by a bracket (46). The bracket (46) has a sand passage hole (47) in the middle and a sand passage hole (47) between the sand-prevention plate I (44) and sand-prevention plate II (45). A seed storage trough (48) is formed between the seeding wheel (2) and the sand-proof plate II (45). When the seeding wheel (2) rotates and drives the sand-proof rod (43) to rotate, the roller (41) rotates around the shaft (42) and rolls along the annular guide groove (14). Due to the different curvatures of each section of the annular guide groove (14), the sand-proof rod (43) moves in the seed-proof cavity (31). When the seed storage trough (48) extends, it can push the seeds out of the seed-proof tube (3) and discharge the seeds from the seed storage trough (48) through the sand flowing in the sand passage hole (47). The maximum difference in distance from each section of the annular guide groove (14) to the center point of the seeding tray (1) is equal to the installation spacing of the sand-proof plate I (44) and the sand-proof plate II (45).

[0024] Figure 5 The working principle of a non-ditching sand-prevention sowing device for Cistanche deserticola is shown. n1 is the rotation speed of the sowing wheel (2), and n2 is the moving speed of the sowing wheel (2). The sowing wheel (2) drives the seed metering tube (3) to rotate and insert into the sand. When the sowing wheel (2) moves to position 1, the inner opening of the seed metering chamber (31) coincides with the seed storage port (12). The seeds 1 stored in the seed storage port (12) will fall into the seed metering chamber (31) under the action of gravity and fall into the seed storage trough (48). When the sowing wheel (2) moves to position 2, the sand-prevention plate I (44) is fully extended. Seed 1 in the seed storage trough (48) is pushed out of the seed discharge tube (3). Sand prevention plate II (45) is located at the opening of the seed discharge tube (3) to prevent sand from entering the seed discharge cavity (31) and effectively prevent sand. As the seeding wheel (2) continues to move, the flowing sand passes through the sand passage hole (47) and flows into the seed storage trough (48) to push the seed 1 into the sowing position, completing one sowing. When the seeding wheel (2) moves to position 3, the opening of the next seed cavity coincides with the seed storage opening, and the seed 2 falls into the seed discharge cavity (31). This continues to achieve continuous sowing.

[0025] To adapt to the agronomic requirements of Cistanche deserticola sowing in desert environments, a non-ditching type sand-proof sowing device for Cistanche deserticola was used. This effectively solved the problem of large power loss caused by the need for the seeder to dig furrows in the sand during Cistanche deserticola sowing; it also solved the problem of sand flowing back and clogging the seed metering pipe after it enters the sand during sowing; thus ensuring the stability and effectiveness of Cistanche deserticola sowing.

Claims

1. A trenchless Cistanche deserticola sand-control sowing device, characterized in that, The seeding tray (1) is coaxially mounted with the rotatable seeding wheel (2). The seed metering tube (3) is equipped with a sand-proof mechanism (4). Four identical seed metering tubes (3) are evenly distributed and fixed to the outer peripheral wall of the seeding wheel (2) in a rotational symmetrical manner. The seeding tray (1) has a basin-shaped structure with a basin rim and a cavity (11) in the center. The cavity (11) is evenly divided into 1'-8' division lines in the circumferential direction and in the counterclockwise direction. The lower left division line is defined as the 1' division line. The inner peripheral wall of the cavity (11) is provided with a seed storage port (12) for temporarily storing seeds falling from the seed box at the 1' division line. The cavity (11) is connected to the external seed box. (1) A keyless connecting shaft through hole (13) is opened in the center, and four annular guide rail grooves (14) with different curvatures and tangent to each other are opened on the end face of the basin; a keyway connecting shaft through hole (21) is opened in the center of the seeding wheel (2), and the keyless connecting shaft through hole (13) and the keyway connecting shaft through hole (21) have the same diameter and are installed on the same drive shaft; the seed metering tube (3) has an h-shaped seed metering cavity (31) inside, and the cross-sectional size of the seed metering cavity (31) is the same as the size of the seed storage port (12). As the seed metering tube (3) rotates, the inner cavity of the seed metering cavity (31) can be aligned with the seed storage port (12). The root of the seed metering tube (3) is close to the annular guide rail groove ( The side wall of the sand-prevention mechanism (4) has an installation hole (32). The top of the sand-prevention mechanism (4) extends out of the installation hole (32), and the main body is located in the seeding chamber (31) and moves along the chamber. The main body of the sand-prevention mechanism (4) is a sand-prevention rod (43) with a roller (41) and a shaft (42) at the top. The width of the roller (41) is the same as the depth of the annular guide groove (14) and it can rotate around the shaft (42) in the annular guide groove (14). The shaft (42) is fixedly installed at the top of the sand-prevention rod (43) of the sand-prevention mechanism (4). The sand-prevention plate I (44) and sand-prevention plate II (45) fixed at the bottom are connected by a bracket (46). The support (46) has a sand passage hole (47) in the middle, and a seed storage trough (48) is formed between the sand-proof plate I (44) and the sand-proof plate II (45). When the seeding wheel (2) and the seed metering pipe (3) fixed to it rotate and drive the sand-proof rod (43) to rotate, the roller (41) rotates around the shaft (42) and rolls along the annular guide groove (14). Due to the different curvatures of each section of the annular guide groove (14), the sand-proof rod (43) moves in the seed metering cavity (31). When the seed storage trough (48) extends, it can push the seeds out of the seed metering pipe (3) and discharge the seeds into the seed storage trough (48) through the sand flowing in the sand passage hole (47).

2. The trenchless Cistanche deserticola sand-control sowing device according to claim 1, characterized in that, The length of the mounting hole (32), the maximum difference in distance from each section of the annular guide rail groove (14) to the center point of the seeding tray (1), and the installation spacing of sandproof plate I (44) and sandproof plate II (45) are all equal.

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