A precision seeder for small-grain seeds

Abstract

The application discloses a small-particle seed precision seeder, and relates to the field of seeders. The small-particle seed precision seeder comprises a cleaning seeding box, the bottom of the cleaning seeding box is detachably connected with a cover plate, further comprises a water storage cavity which is arranged in the cleaning seeding box, water for sorting seeds is injected into the water storage cavity, and a rotating shaft one is rotatably connected to the cover plate. The application can sort seeds by using the buoyancy of water in the water storage cavity, so that the dry seeds and impurities can float upwards under the buoyancy of water, thereby the seeds with full particles are sorted, the survival rate of the seeds during seeding is improved, and when the seeds pass through the discharging end of the seeding pipe, the water continuously sprayed by the water nozzle can increase the falling speed of the seeds, so that the seeds discharged from the seeding pipe can be embedded into the soil, the seeds can be covered, and the survival rate of the seeds is further improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of seeding machines, in particular, to a small particle seed precision seeding machine. BACKGROUND

[0002] Small particle seeds can be manually seeded when seeding small areas of land, and rely on seeding devices when seeding large areas of land. There are various seeding devices, and currently, mechanical towing seeding devices or manual seeding devices are used for seeding.

[0003] However, the existing seeding device lacks seed sorting when seeding small particle seeds, so there may be dry seeds in the seeded seeds, thereby reducing the survival rate of the seeds. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a small particle seed precision seeding machine that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0006] A small particle seed precision seeding machine, comprising a cleaning seeding box, the bottom of the cleaning seeding box is detachably connected with a cover plate, further comprising: a water storage cavity is opened in the cleaning seeding box, wherein water for sorting seeds is injected into the water storage cavity, a rotating shaft one is rotatably connected to the cover plate, a plurality of groups of stirring rods are fixedly connected to the rotating shaft one, a hollow cavity is opened in the rotating shaft one and the stirring rods; a gas nozzle is fixedly connected to the stirring rod and fixedly communicated with the hollow cavity, wherein an air suction pump is arranged on the cleaning seeding box for supplying air to the gas nozzle through the hollow cavity; two seeding pipes are fixedly connected to the cover plate and communicated with the water storage cavity; a rotating shaft two is rotatably connected in the seeding pipe; a roller is fixedly connected to the rotating shaft two, wherein a plurality of groups of grooves are circumferentially arranged on the outer wall of the roller, an inclined downward water nozzle is fixedly connected to the inner wall of the seeding pipe, a water storage tank is fixedly connected to the outer wall of the cleaning seeding box, and a water pump is arranged on the cleaning seeding box for pumping water from the water storage tank to the water nozzle.

[0007] In order to facilitate air supply to the gas nozzle, the air suction pump is fixedly connected to the side wall of the cleaning seeding box, the output end of the air suction pump is fixedly communicated with a pipeline one, the end of the pipeline one away from the air suction pump is fixedly communicated with a pipeline two, the end of the rotating shaft one penetrating through the bottom of the cover plate is provided with a rotary joint, and the end of the pipeline two away from the pipeline one is communicated with the rotary joint.

[0008] In order to drive the rotation of the rotating shaft, further, the pipeline two is fixedly connected on the cover plate, and the rotating shaft one is fixedly installed with the impeller one at one end penetrating the pipeline two.

[0009] In order to clean the sorted dry seeds and impurities, further, the cleaning tank is provided with cleaning grooves on both sides, and the reciprocating screw rod is rotatably connected to the inner wall of the cleaning tank.

[0010] In order to increase the sealing performance of the pipeline one and the pipeline two, further, the sealing rings are arranged on the pipeline one and the pipeline two, and the sealing rings are respectively matched with the outer wall of the reciprocating screw rod and the rotating shaft one.

[0011] In order to facilitate the water in the water storage cavity to be discharged into the water storage tank, preferably, the water storage tank is fixedly connected with the guide pipe two, the guide pipe two penetrates the bottom inner wall of the cover plate away from the water storage tank, and the guide pipe two is provided with a valve switch.

[0012] In order to facilitate the water supply to the water spray nozzle, further, the water pump is fixedly installed on the outer wall of the cleaning tank, the input end of the water pump is fixedly communicated with the inner cavity of the water storage tank, and the output end of the water pump is fixedly communicated with the water spray nozzle through the guide pipe one.

[0013] In order to drive the rotation of the roller, preferably, the two rotating shafts two are fixedly connected with pulleys at one end penetrating the outer wall of the seeding pipe, the two pulleys are connected through a belt, one of the outer walls of the two seeding pipes is fixedly connected with a motor, and one of the two rotating shafts two is fixedly connected with the output end of the motor.

[0014] In order to facilitate the remaining seeds in the water storage cavity to be discharged out of the cleaning tank, preferably, the outer walls of both sides of the cleaning tank are fixedly connected with electric telescopic rods, the cover plate is fixedly connected with the output end of the electric telescopic rod, the bottom of the cleaning tank is provided with a sealing pad, the cover plate is matched with the sealing pad, and the cover plate is fixedly connected with the tapered blocks.

[0015] In order to facilitate the assembly of the cleaning tank on the agricultural machine, preferably, the outer wall of the cleaning tank is fixedly connected with a connecting seat and a fixing seat, the connecting seat is inserted with a pin shaft penetrating the fixing seat, and the pin shaft is threadedly connected with a nut.

[0016] After the above technical scheme is adopted, the present application has the following beneficial effects compared with the prior art:

[0017] This invention utilizes the buoyancy of water within the water storage chamber to sort seeds, allowing shriveled seeds and impurities to float upwards under the buoyancy of the water, thus separating plump seeds and improving seed survival rate during sowing. Furthermore, during sowing, the continuous spraying of water from the nozzle increases the falling speed of the seeds as they pass through the discharge end of the sowing tube, enabling the seeds discharged from the sowing tube to embed into the soil. It also achieves seed coverage, further improving seed survival rate.

[0018] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the internal structure of the cleaning and seeding box of a precision seeding machine for small-particle seeds according to the present invention;

[0021] Figure 2 This is a front view of a precision seed planter for small-particle seeds according to the present invention;

[0022] Figure 3 This is a rear view of a precision seed planter for small-particle seeds according to the present invention;

[0023] Figure 4 This is a cross-sectional view of the seeding tube of a precision seeding machine for small-particle seeds according to the present invention;

[0024] Figure 5 This invention relates to a precision seed planter for small-particle seeds. Figure 1 Enlarged view of section A;

[0025] Figure 6 This invention relates to a precision seed planter for small-particle seeds. Figure 1 Enlarged view of section B.

[0026] In the diagram: 1. Cleaning seed box; 101. Water storage chamber; 102. Cover plate; 103. Electric telescopic rod; 104. Sealing gasket; 105. Conical block; 2. Air pump; 201. Pipe 1; 202. Pipe 2; 203. Rotary joint; 204. Hollow cavity; 205. Air nozzle; 3. Shaft 1; 301. Impeller 1; 302. Actuating rod; 4. Sealing ring; 5. Reciprocating screw; 501. Guide rod 502. Scraper; 503. Impeller II; 504. Cleaning groove; 6. Connecting seat; 601. Fixing seat; 602. Pin; 603. Nut; 7. Seeding tube; 701. Rotating shaft II; 702. Roller; 703. Groove; 704. Belt; 705. Motor; 8. Water pump; 801. Pipe I; 802. Spray nozzle; 803. Pipe II; 804. Valve switch; 805. Water storage tank. DETAILED DESCRIPTION

[0027] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The following embodiments are used to explain the present application but not to limit the scope of the present application.

[0028] Embodiment 1: Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 6 A small-particle seed precision seeder, comprising a cleaning seeding box 1, a cover plate 102 detachably connected to the bottom of the cleaning seeding box 1, and a water storage cavity 101 opened in the cleaning seeding box 1, wherein water for sorting seeds is injected into the water storage cavity 101, a rotating shaft one 3 is rotatably connected to the cover plate 102, a plurality of groups of poking rods 302 are fixedly connected to the rotating shaft one 3, a hollow cavity 204 is opened in the axis of the rotating shaft one 3 and the poking rod 302, an air jet nozzle 205 is fixedly connected to the poking rod 302 and fixedly communicated with the hollow cavity 204, wherein the cleaning seeding box 1 is provided with a suction pump 2 for supplying air to the air jet nozzle 205 through the hollow cavity 204, two seeding pipes 7 are fixedly connected to the cover plate 102 and communicated with the water storage cavity 101, a rotating shaft two 701 is rotatably connected in the seeding pipe 7, and a roller 702 is fixedly connected to the rotating shaft two 701, wherein a plurality of groups of grooves 703 are circumferentially opened in the outer wall of the roller 702, an inclined downward water jet nozzle 802 is fixedly connected to the inner wall of the seeding pipe 7, a water storage tank 805 is fixedly connected to the outer wall of the cleaning seeding box 1, and the cleaning seeding box 1 is provided with a water pump 8 for extracting water in the water storage tank 805 to supply the water jet nozzle 802.

[0029] The suction pump 2 is fixedly connected to the side wall of the cleaning seeding box 1, the output end of the suction pump 2 is fixedly communicated with a pipeline one 201, the end of the pipeline one 201 away from the suction pump 2 is fixedly communicated with a pipeline two 202, one end of the rotating shaft one 3 penetrating through the bottom of the cover plate 102 is provided with a rotary joint 203, and the end of the pipeline two 202 away from the pipeline one 201 is communicated with the rotary joint 203.

[0030] The pipeline two 202 is fixedly connected to the cover plate 102, and the end of the rotating shaft one 3 penetrating through the pipeline two 202 is fixedly installed with an impeller one 301.

[0031] The water storage tank 805 is fixedly communicated with a conduit two 803, the end of the conduit two 803 away from the water storage tank 805 penetrates through the inner wall of the bottom of the cover plate 102, and the conduit two 803 is provided with a valve switch 804.

[0032] When in use, before sowing the small particle seeds, a proper amount of water is added into the water storage cavity 101, and then the small particle seeds to be sowed are poured into the water storage cavity 101, at this time, the water in the water storage cavity 101 is flowed due to the pouring of the small particle seeds, so that the small particle seeds are disturbed under the action of the water flow, the distance between the small particle seeds is enlarged, so as to soak the small particle seeds and keep the seeds wet, thereby facilitating the removal of impurities in the seeds, and at the same time, the dry seeds and impurities can float upward under the buoyancy of the water, so as to achieve the effect of sorting the seeds.

[0033] Then the suction pump 2 is started, the external gas is extracted by the suction pump 2 and is sequentially conveyed into the air jet nozzle 205 through the pipeline one 201, the pipeline two 202 and the hollow cavity 204 and is sprayed out, and the gas sprayed out of the air jet nozzle 205 can impact the water in the water storage cavity 101, so that the flowing effect of the water is better, thereby improving the disturbance effect of the water flow on the seeds, and being more beneficial to the floating of the impurities and dry seeds in the seeds, thereby improving the sorting effect of the red pine seeds, and at the same time, when the gas passes through the pipeline two 202, the gas is driven to rotate the rotating shaft one 3 by the impeller one 301, the rotating shaft one 3 drives the stirring rod 302 to rotate, and the rotating stirring rod 302 can stir the seeds in the water storage cavity 101, thereby being more beneficial to the floating of the dry seeds and impurities upward under the buoyancy of the water, and further improving the sorting effect of the seeds.

[0034] Then when the water in the water storage cavity 101 needs to be discharged after the small particle seeds are sorted, the user can manually open the valve switch 804, at this time, the water in the water storage cavity 101 is discharged into the water storage tank 805 through the conduit two 803 for reutilization, the conduit two 803 is provided with a one-way valve, thereby reducing the waste of water resources, and the water inlet end of the conduit two 803 is provided with an activated carbon filter screen, so that the water contacts the activated carbon filter screen when passing through the conduit two 803, and since the activated carbon has a developed gap structure and rich microporous organization, the microporous organization has a strong adsorption field, when the water contacts the activated carbon, the strong adsorption field of the activated carbon micropores can adsorb the particles in the water into the micropores, thereby achieving the effect of filtering the water.

[0035] Example 2: refer to Figure 1 , Figure 5The utility model relates to a small granule seed precision seeder, including washing seeding box 1, the bottom of washing seeding box 1 is detachably connected with cover plate 102, still includes: the water storage cavity 101 that opens in washing seeding box 1, wherein the water for sorting seed is injected in water storage cavity 101, the pivot connection of cover plate 102 has the pivot 3, and the fixed connection of pivot 3 has a plurality of groups of poking rod 302, and the pivot of pivot 3 and the hollow cavity 204 of poking rod 302 are all opened, the gas jet 205 is fixedly connected in the poking rod 302, and with hollow cavity 204 fixed communication, wherein washing seeding box 1 is equipped with the suction pump 2 for the air supply of gas jet 205 through hollow cavity 204, two seeding pipes 7 are all fixedly connected on cover plate 102, and with water storage cavity 101 communication, pivot 701 is pivotally connected in seeding pipe 7, cylinder 702 is fixedly connected on pivot 701, wherein the circumferential recess 703 of cylinder 702 outer wall is opened, and the fixed connection of the inner wall of seeding pipe 7 has the water jet nozzle 802 of slanting downward, and the fixed connection of washing seeding box 1 outer wall has water storage tank 805, and washing seeding box 1 is equipped with the water pump 8 for the water supply of water jet nozzle 802 to the water extraction of water storage tank 805.

[0036] The cleaning groove 504 is formed on both sides of the washing seeding box 1, the reciprocating screw rod 5 is rotatably connected to the inner wall of the washing seeding box 1, the guide rod 501 is fixedly connected to the inner wall of the washing seeding box 1, the scraper 502 is slidably connected to the guide rod 501, the scraper 502 is threadedly connected to the reciprocating screw rod 5, and the pipeline 201 is fixedly connected to the side wall of the washing seeding box 1. The impeller 503 is fixedly installed at one end of the pipeline 201 penetrated by the reciprocating screw rod 5.

[0037] Based on example 1, in the process of cleaning and sorting the seeds, when the gas passes through the pipeline 201, the gas drives the reciprocating screw rod 5 to rotate through the impeller 503, the reciprocating screw rod 5 drives the scraper 502 to move reciprocally left and right under the limiting guidance of the guide rod 501, so that the scraper 502 can clean the impurities and dry seeds floating on the water surface, and then the cleaned impurities and dry seeds are discharged from the washing seeding box 1 through the cleaning groove 504.

[0038] Example 3: refer to Figure 1 , Figure 2 and Figure 4 A small granule seed precision seeder, which is basically the same as example 1, and further, the water pump 8 is fixedly installed on the outer wall of the washing seeding box 1, the input end of the water pump 8 is fixedly communicated with the inner cavity of the water storage tank 805, and the output end of the water pump 8 is fixedly communicated with the water jet nozzle 802 through the conduit 801.

[0039] Two rotating shafts two 701 are fixedly connected with pulleys at one end penetrating the outer wall of the seeding pipe 7, the two pulleys are connected through a belt 704, one outer wall of the two seeding pipes 7 is fixedly connected with a motor 705, one of the two rotating shafts two 701 is fixedly connected with the output end of the motor 705.

[0040] The outer wall of the cleaning and seeding box 1 is fixedly connected with a connecting seat 6 and a fixing seat 601, a pin shaft 602 penetrating the fixing seat 601 is inserted into the connecting seat 6, and a nut 603 is threadedly connected with the pin shaft 602.

[0041] Based on example 1, after completing the cleaning and sorting of the seeds, when the seeds are sown, first, the pin shaft 602 is sequentially penetrated through the connecting seat 6, the agricultural rear axle and the fixing seat 601, then the nut 603 is threadedly screwed on the pin shaft 602, and the nut 603 is abutted with the fixing seat 601, so that the cleaning and seeding box 1 can be stably assembled on the agricultural rear axle as a whole, then the cleaning and seeding box 1 is driven by the agricultural machinery to travel in the field, at the same time, the motor 705 and the water pump 8 are started, the motor 705 drives the two rotating shafts two 701 to rotate synchronously through the belt 704, the rotating shaft two 701 drives the roller 702 to rotate in the seeding pipe 7, and then when the groove 703 driven by the roller 702 rotates to the directly above of the seeding pipe 7, the seeds in the water storage cavity 101 fall into the groove 703 through the seeding pipe 7, and then when the groove 703 driven by the roller 702 rotates to the directly below of the seeding pipe 7, the seeds in the groove 703 fall out through the discharge end of the seeding pipe 7 and fall on the soil surface in the field, so as to achieve the seeding of the seeds, and since five groups of grooves 703 are equally spaced around the outer wall of the roller 702, the seeds can be uniformly sown through the five groups of grooves 703 on the roller 702;

[0042] At the same time, the water pump 8 draws the water in the water storage tank 805 through the conduit one 801 and sprays it into the water nozzle 802, at this time, the water continuously sprayed by the water nozzle 802 can increase the falling speed of the seeds when they are discharged through the discharge end of the seeding pipe 7, so that the seeds discharged from the seeding pipe 7 can be embedded in the soil, and the seeds can be covered, thereby improving the survival rate of the seeds.

[0043] Example 4: refer to Figure 1 , Figure 3 A small particle seed precision seeder, which is basically the same as example 1, and further, the outer walls of the cleaning and seeding box 1 are fixedly connected with electric telescopic rods 103, the cover plate 102 is fixedly connected with the output end of the electric telescopic rod 103, the bottom of the cleaning and seeding box 1 is provided with a sealing gasket 104, the cover plate 102 is attached to the sealing gasket 104, and the cover plate 102 is fixedly connected with tapered blocks 105 symmetrically.

[0044] Based on example 3, after the completion of the seeding of the seeds, when the remaining seeds in the water storage cavity 101 need to be cleaned, the electric telescopic rod 103 is started, the electric telescopic rod 103 pushes the cover plate 102 to move downwards, so that the cover plate 102 moves away from the bottom of the cleaning seeding box 1, thereby opening the water storage cavity 101, at this time, the remaining seeds in the water storage cavity 101 are removed from the cleaning seeding box 1 along with the cover plate 102, so that the remaining seeds in the water storage cavity 101 can be conveniently cleaned and recycled, and then after the seeds on the cover plate 102 are cleaned and recycled, the electric telescopic rod 103 is started again, the electric telescopic rod 103 pushes the cover plate 102 to move downwards until the cover plate 102 is attached to the bottom of the cleaning seeding box 1, thereby closing the bottom of the cleaning seeding box 1, at this time, the sealing gasket 104 on the cover plate 102 is tightly attached to the bottom of the cleaning seeding box 1, thereby increasing the sealing of the bottom of the cleaning seeding box 1, effectively preventing the water in the water storage cavity 101 from leaking out when the seeds are cleaned and sorted;

[0045] It should be noted that the conduit one 801 and the conduit two 803 are both flexible hoses, so the conduit one 801 and the conduit two 803 will not interfere with the up-down movement of the cover plate 102;

[0046] The fixedly communicated one end of the pipeline one 201 and the pipeline two 202 is provided with a stretchable and contractible hose, so the pipeline one 201 will not interfere with the up-down movement of the cover plate 102.

[0047] Example 5: refer to Figure 5 、 Figure 6 A small particle seed precision seeder, which is basically the same as example 1, and further, the pipeline one 201 and the pipeline two 202 are both provided with a sealing ring 4, which is attached to the outer wall of the reciprocating screw rod 5 and the shaft one 3 respectively; when the external gas drawn by the air suction pump 2 is sequentially conveyed into the air injection nozzle 205 through the pipeline one 201, the pipeline two 202 and the hollow cavity 204 and then sprayed out, the sealing ring 4 is attached to the outer wall of the reciprocating screw rod 5 and the shaft one 3 respectively, thereby increasing the sealing of the pipeline one 201 and the pipeline two 202, effectively preventing the gas from leaking when passing through the pipeline one 201 and the pipeline two 202, and affecting the rotation of the shaft one 3 driven by the impeller one 301 and the rotation of the reciprocating screw rod 5 driven by the impeller two 503.

[0048] The above only describes the preferred embodiments of the present application and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make modifications without departing from the technical solution of the present application.

Claims

1. A small-particle seed precision seeder, comprising a cleaning seeding box (1), the bottom of the cleaning seeding box (1) is detachably connected with a cover plate (102), characterized in that, Also include: The water storage cavity (101) is opened in the cleaning seeding box (1), Wherein, the water storage cavity (101) is injected with water for sorting seeds, the cover plate (102) is rotatably connected with the rotating shaft one (3), the rotating shaft one (3) is fixedly connected with a plurality of groups of the poking rod (302), the axis of the rotating shaft one (3) and the poking rod (302) are all provided with the hollow cavity (204); The air jet nozzle (205) is fixedly connected on the poking rod (302), and is fixedly communicated with the hollow cavity (204), Wherein, the cleaning seeding box (1) is provided with the air suction pump (2) for supplying air to the air jet nozzle (205) through the hollow cavity (204); Two seeding pipes (7) are fixedly connected on the cover plate (102), and are communicated with the water storage cavity (101); The rotating shaft two (701) is rotatably connected in the seeding pipe (7); The roller (702) is fixedly connected on the rotating shaft two (701), The outer wall of the roller (702) is provided with a plurality of groups of grooves (703), the inner wall of the seeding pipe (7) is fixedly connected with a downwardly inclined water nozzle (802), the outer wall of the cleaning seeding box (1) is fixedly connected with a water storage tank (805), the cleaning seeding box (1) is provided with a water pump (8) for extracting water in the water storage tank (805) to supply the water nozzle (802), the air suction pump (2) is fixedly connected to the side wall of the cleaning seeding box (1), the output end of the air suction pump (2) is fixedly connected with a pipeline one (201), the end of the pipeline one (201) away from the air suction pump (2) is fixedly connected with a pipeline two (202), one end of the rotating shaft one (3) penetrating through the bottom of the cover plate (102) is provided with a rotary joint (203), the end of the pipeline two (202) away from the pipeline one (201) is connected with the rotary joint (203), the two sides of the cleaning seeding box (1) are provided with cleaning grooves (504), the inner wall of the cleaning seeding box (1) is rotatably connected with a reciprocating screw rod (5), the inner wall of the cleaning seeding box (1) is fixedly connected with a guide rod (501), the guide rod (501) is slidably connected with a scraper (502), the scraper (502) is threadedly connected with the reciprocating screw rod (5), the pipeline one (201) is fixedly connected to the side wall of the cleaning seeding box (1), one end of the reciprocating screw rod (5) penetrating through the pipeline one (201) is fixedly installed with an impeller two (503), the water storage tank (805) is fixedly connected with a guide pipe two (803), the end of the guide pipe two (803) away from the water storage tank (805) penetrates through the inner wall of the bottom of the cover plate (102), the guide pipe two (803) is provided with a valve switch (804), the water pump (8) is fixedly installed on the outer wall of the cleaning seeding box (1), the input end of the water pump (8) is fixedly connected with the inner cavity of the water storage tank (805), the output end of the water pump (8) is fixedly connected with the water nozzle (802) through a guide pipe one (801), the outer walls of the two sides of the cleaning seeding box (1) are fixedly connected with electric telescopic rods (103), the cover plate (102) is fixedly connected with the output ends of the electric telescopic rods (103), the bottom of the cleaning seeding box (1) is provided with a sealing gasket (104), the cover plate (102) is attached to the sealing gasket (104), the cover plate (102) is symmetrically fixedly connected with tapered blocks (105).

2. A precision seed drill for small seeds as claimed in claim 1, wherein, The pipeline two (202) is fixedly connected to the cover plate (102), and the rotating shaft one (3) is fixedly installed with an impeller one (301) at one end penetrating through the pipeline two (202).

3. A precision seed drill for small seeds as claimed in claim 1 wherein, The pipeline one (201) and the pipeline two (202) are both provided with sealing rings (4), and the sealing rings (4) are respectively attached to the outer walls of the reciprocating screw rod (5) and the rotating shaft one (3).

4. The precision seed drill of claim 1, wherein, Two said rotating shaft two (701) through the outer wall of a seeding tube (7) one end are fixedly connected with pulley, two said pulley are connected through the belt (704), one outer wall of two said seeding tube (7) fixedly connected with motor (705), one of two said rotating shaft two (701) and motor (705) output end are fixedly connected.

5. The precision seed drill of claim 1, wherein, The outer wall of the cleaning seeding box (1) is fixedly connected with a connecting seat (6) and a fixed seat (601), a pin shaft (602) penetrating through the fixed seat (601) is inserted into the connecting seat (6), and a nut (603) is threadedly connected on the pin shaft (602).

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