CN209376175U - Seeding device for agricultural planting - Google Patents

Abstract

The utility model provides a seeding device for agricultural planting, which belongs to the field of agricultural equipment. The seeding device for agricultural planting includes a bottom plate, a material storage mechanism, a seeding mechanism and a spraying mechanism. The bottom of the bottom plate is provided with a walking mechanism. The sowing mechanism includes a distribution bin and a closing assembly. The top of the distribution bin is provided with a feeding port, the bottom of the distribution bin is provided with a fixed block, and the bottom plate is located below the discharge port. A material guide slideway is fixed on the groove wall, a material conveying assembly is arranged in the material distribution bin, and the closing assembly includes a sliding plate and a material moving part. The beneficial effect of the utility model is that the falling seeds can fall on the ground at regular intervals through the sowing mechanism, and the falling seeds at equal intervals can be realized under the driving of the device, and the spraying mechanism can realize the correcting of the falling seeds on the ground. The seeds are sprayed, and the spray pipe can be sprayed in a large area.

Description

Seeding device for agricultural planting

technical field

The utility model relates to the field of agricultural equipment, in particular to a sowing device for agricultural planting.

Background technique

For modern agriculture, most individuals contract large areas of land for mechanized and modern agricultural development, so agricultural machinery and equipment are necessary for large-scale agricultural planting, which can replace a large amount of labor , save a lot of manpower and material resources, and the efficiency is very high. Some existing machinery and equipment have already met the needs of agricultural production operations, but there are still some small defects that need to be improved. The existing seeders can be used to quickly plant seeds. Sowing is carried out, but there is a technical problem that the row spacing of sowing is different. The row spacing of crops is different, which will affect the growth of crops, and then affect the quality of crops. In addition, traditional seeders cannot irrigate the nutrient solution for the sown seeds at the same time, making the work Those who need to additionally use irrigation equipment to irrigate have brought troubles for workers.

Therefore, how to provide a seeding device for agricultural planting so that the traditional seeder can control the sowing row spacing and irrigate the sown seeds with nutrient solution has become a technical problem urgently to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a seeding device for agricultural planting, so as to solve the technical problems in the prior art that the seeding opportunities lead to different sowing row spacing and the inability to irrigate the sown seeds during sowing.

The utility model provides a seeding device for agricultural planting, which includes a bottom plate, a material storage mechanism, a seeding mechanism and a spraying mechanism. The material storage mechanism, the seeding mechanism and the spraying mechanism are all arranged on the top of the bottom plate. The bottom is provided with a walking mechanism, the storage mechanism is set above the sowing mechanism, the spraying mechanism is set beside the sowing mechanism, and the sowing mechanism includes a distribution bin and a closed assembly located below the distribution bin, The top of the distribution bin is provided with a feed inlet, the bottom of the distribution bin is provided with a fixed block integrally formed with it, the bottom of the fixed block is provided with a discharge port, and the bottom plate is located at the discharge port. There is a through groove below, the groove wall of the through groove is fixed with an inclined material guide slideway, the material distribution bin is provided with a material conveying assembly, and the closing assembly includes a sliding slide that is slidably matched with the fixed block. Plate and moving parts for driving the slide plate to reciprocate.

Further, the material conveying assembly includes a rotating shaft horizontally arranged on the separation chamber, and three distribution plates distributed in a circle are sleeved on the rotating shaft, and a fixing frame is provided on the top of the bottom plate, and the fixing frame A rotating motor is arranged on the top of the frame, and the output shaft of the rotating motor is fixedly connected with the rotating shaft.

Further, the material moving assembly includes a connecting frame and an extension rod arranged on the top of the sliding plate, a driving motor is provided at the bottom of the bottom plate, and a transmission plate is sleeved on the output shaft of the driving motor, and the transmission plate The top of the connecting frame is provided with a driving cylinder that is arranged in the connecting frame and matches with the connecting frame, and a connecting plate is arranged on the side wall in the connecting frame, and the end of the connecting plate is sleeved on the extension rod.

Further, the material storage mechanism includes a support frame, a material storage tube arranged on the support frame, and a blanking control assembly arranged under the material storage tube. The upper section of the material storage tube is provided with a feed pipe, and the The bottom of the storage barrel is provided with a discharge port.

Further, the top of the storage barrel is provided with a stirring motor whose output shaft is vertically facing downwards, a stirring rod is sleeved on the output shaft of the stirring motor, and a stirring blade is sleeved on the stirring rod.

Further, the blanking control assembly includes a horizontally arranged rotating disk and an L-shaped connecting frame arranged on the top of the bottom plate, the rotating disk is arranged between the storage barrel and the distribution bin, and the rotating disk There are a number of blanking holes distributed in a circle and with different diameters on the top, a reinforcing plate is provided on the side wall of the connecting frame, and a vertical rotating column is fixed at the bottom of the center of the rotating disk. The column and the connecting frame are connected by bearings.

Further, the connecting frame is provided with an adjusting motor, the rotating column is provided with a reduction gear, and the output shaft of the adjustment motor is provided with a driving gear meshing with the reduction gear.

Further, the running mechanism includes four running wheels arranged at the bottom of the bottom plate, and several anti-slip ribs distributed around the circumference are provided on the outer side walls of the running wheels.

Further, the spray mechanism includes a liquid storage tank and two spray assemblies arranged at intervals on the bottom plate. The installation shaft on the top, the bottom of the installation shaft is fixedly connected with the pipe hoop, the pipe hoop is provided with a spray pipe that fits with it and is arranged obliquely, and the spray nozzle is provided on the spray pipe. The top of the liquid storage tank is provided with a liquid inlet pipe, and the lower section of the liquid storage tank is provided with a liquid outlet pipe, and a three-way pipe is installed on the liquid outlet pipe. connect.

Further, a first gear and a second gear are sleeved on the two installation shafts respectively, and a stepping motor with an output shaft facing upwards is provided at the bottom of the bottom plate, and the output shaft of the stepping motor is sleeved on A third gear meshing with the first gear is provided.

Compared with the prior art, the beneficial effect of the utility model is that: a kind of sowing device for agricultural planting provided by the utility model includes a bottom plate, a stocking mechanism, a seeding mechanism and a spraying mechanism. The mechanism and the spraying mechanism are both arranged on the top of the bottom plate, the bottom of the bottom plate is provided with a walking mechanism, the storage mechanism is arranged above the sowing mechanism, the spraying mechanism is arranged on the side of the sowing mechanism, and the sowing mechanism is arranged on the side of the sowing mechanism. The mechanism includes a distribution bin and a closed assembly located below the distribution bin. The top of the distribution bin is provided with a feed port, and the bottom of the distribution bin is provided with a fixed block integrally formed with it. A discharge port is provided at the bottom, and a through groove is arranged below the discharge port on the bottom plate, and an inclined material guide slideway is fixed on the groove wall of the through groove, and a conveying chute is arranged in the distribution bin. The material assembly, the closure assembly includes a sliding plate that is slidably engaged with the fixed block and a material moving component for driving the sliding plate to reciprocate. The utility model provides a sowing device for agricultural planting, which effectively solves the technical problems in the prior art that the sowing opportunities lead to different sowing row spacing and the inability to irrigate the sown seeds during sowing.

One, the utility model can make the falling seeds fall on the land at regular intervals through the sowing mechanism, and the blanking at equal intervals can be realized under the driving of the device, so that the worker can control the blanking row spacing of the seeds and improve land utilization.

Second, the utility model is used for storing seeds through a storage mechanism, and can control the amount of seed blanking, so that workers can control the amount of seed blanking according to the type of crops.

Third, the utility model can realize the spraying operation on the seeds falling on the ground through the spraying mechanism, and can make the spraying pipe swing, so that the spraying pipe can be sprayed in a larger range without the need for workers Additional spraying operations reduce the labor intensity of workers.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is the three-dimensional structure schematic diagram that the utility model embodiment provides;

Fig. 2 is a schematic side view provided by an embodiment of the utility model;

Fig. 3 is a schematic cross-sectional view provided by an embodiment of the present invention;

Fig. 4 is a partial cross-sectional schematic diagram 1 provided by an embodiment of the utility model;

Fig. 5 is a partial cross-sectional schematic diagram II provided by the embodiment of the utility model;

Fig. 6 is an enlarged view of A in Fig. 5 .

Reference signs:

1-bottom plate, 2-storage mechanism, 2a-support frame, 2b-storage barrel, 2c-feeding pipe, 2d-stirring motor, 2e-stirring rod, 2f-stirring paddle, 3-sowing mechanism, 3a- Material distribution bin, 3b-fixed block, 3c-material guide slide, 3d-feeding assembly, 3d1-rotary shaft, 3d2-material distribution plate, 3d3-fixed frame, 3d4-rotary motor, 4-spray mechanism, 4a -Liquid storage tank, 4b-spray assembly, 4c-pipe collar, 4d-installation shaft, 4e-spray pipe, 4f-spray nozzle, 4g-inlet pipe, 4h-outlet pipe, 5-traveling mechanism, 5a -traveling wheel, 5b-anti-slip rib, 6-closed assembly, 6a-sliding plate, 6b-moving part, 6c-driving motor, 6d-connecting frame, 6e-transmission plate, 6f-driving cylinder, 6g-connecting plate , 7- blanking control assembly, 7a rotating disk, 7b- connecting frame, 7c- blanking hole, 7d- reinforcement plate, 7e- rotating column, 7f- adjusting motor, 7g- reduction gear, 7h- driving gear, 8- First gear, 8a-second gear, 8b-stepper motor, 8c-third gear.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them.

The components of the embodiments of the invention generally described and shown in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Fig. 1 is the three-dimensional structure diagram that the utility model embodiment provides; Fig. 2 is the side view schematic diagram that the utility model embodiment provides; Fig. 3 is the sectional schematic diagram that the utility model embodiment provides; Fig. 4 is the utility model embodiment The partial sectional schematic diagram 1 provided; FIG. 5 is the partial sectional schematic diagram 2 provided by the embodiment of the present invention; FIG. 6 is an enlarged view of A in FIG. 5 .

As shown below in conjunction with Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention provides a seeding device for agricultural planting, including a bottom plate 1, a material storage mechanism 2, a seeding mechanism 3 and a spraying mechanism 4. The feeding mechanism 2, the seeding mechanism 3 and the spraying mechanism 4 are all arranged on the top of the base plate 1, the bottom of the base plate 1 is provided with a walking mechanism 5, the storage mechanism 2 is arranged above the seeding mechanism 3, and the spraying Mechanism 4 is arranged on the side of sowing mechanism 3, and described sowing mechanism 3 comprises sub-material bin 3a and is positioned at sub-material bin 3a below closing assembly 6, and the top of described sub-material bin 3a is provided with feeding port, and described The bottom of the material distribution bin 3a is provided with a fixed block 3b integrally formed with it, the bottom of the fixed block 3b is provided with a discharge port, and the bottom plate 1 is provided with a through groove below the discharge port, the through groove The groove wall is fixed with an inclined material guide slide 3c, the material distribution bin 3a is provided with a material delivery assembly 3d, and the closure assembly 6 includes a sliding plate 6a that is slidingly matched with the fixed block 3b and is used to drive The sliding plate 6a reciprocatingly moves the material moving part 6b; it is used to store the seeds through the storage mechanism 2, and can control the amount of seed falling, so that workers can control the amount of seed falling according to the type of crops. Mechanism 3 can make the fallen seeds fall on the ground at regular intervals, and can realize equidistant blanking under the driving of the device, so that workers can control the blanking row spacing of seeds, and the spraying mechanism 4 can realize the The seeds falling on the ground are sprayed, and the spraying pipe 4e can be swung, so that the spraying pipe 4e can be sprayed in a larger range, without the need for workers to perform additional spraying operations, which reduces the labor force of the workers. Labor intensity, the fixed block 3b is used to limit the sliding plate 6a, so that the sliding plate 6a can slide in the horizontal direction.

Further, as shown in Figure 4, Figure 4 is a partial cross-sectional schematic diagram 1 provided by an embodiment of the present utility model, the conveying assembly 3d includes a rotating shaft 3d1 horizontally arranged on the separation chamber, and the rotating shaft 3d1 There are three distribution plates 3d2 distributed in a circle, the top of the bottom plate 1 is provided with a fixed frame 3d3, and the top of the fixed frame 3d3 is provided with a rotating motor 3d4, the output shaft of the rotating motor 3d4 and the rotating shaft 3d1 Fixed connection; the seeds can fall between the two distribution plates 3d2 through the discharge port at the bottom of the storage barrel 2b, and the rotating motor 3d4 can drive the rotating shaft 3d1 to rotate, and the rotating shaft 3d1 can drive the three distribution plates 3d2 to rotate , so that the seeds can pass through the outlet and fall on the ground through the channel, and the fixing frame 3d3 is used to install the rotating motor 3d4.

Further, as shown in Fig. 5, Fig. 5 is a partial cross-sectional schematic diagram 2 provided by the embodiment of the present utility model. The material moving assembly includes a connecting frame 6d and an extension rod arranged on the top of the sliding plate 6a. The bottom plate 1 The bottom of the drive motor 6c is provided with a drive motor 6c, the output shaft of the drive motor 6c is covered with a drive plate 6e, and the top of the drive plate 6e is provided with a drive cylinder that is arranged in the connection frame 6d and matches the connection frame 6d 6f, the side wall in the connecting frame 6d is provided with a connecting plate 6g, and the end of the connecting plate 6g is sleeved on the extension rod; the driving motor 6c can drive the transmission plate 6e to rotate, and the transmission plate 6e can drive the The cylinder 6f rotates, so that the driving cylinder 6f can drive the connecting frame 6d to move, and the connecting frame 6d can drive the connecting plate 6g, so that the connecting plate 6g can drive the sliding plate 6a to move back and forth in the horizontal direction, so that the sliding plate 6a can move from the fixed block 3b When pulled out, the fixing block 3b is used to limit the sliding plate 6a so that the sliding plate 6a can slide in the horizontal direction.

Further, the material storage mechanism 2 includes a support frame 2a, a material storage tube 2b arranged on the support frame 2a, and a blanking control assembly 7 arranged below the material storage tube 2b, and the upper section of the material storage tube 2b is set There is a feeding pipeline 2c, and the bottom of the storage tank 2b is provided with a discharge port; the falling material control assembly 7 is used to control the amount of seeds falling, and the worker can add seeds to the storage tank 2b through the feeding pipeline 2c And fertilizers, seeds and fertilizers can be discharged through the discharge opening at the bottom of the storage tank 2b.

Further, the top of the storage barrel 2b is provided with a stirring motor 2d whose output shaft is vertically facing downwards, the output shaft of the stirring motor 2d is provided with a stirring rod 2e, and the stirring rod 2e is sleeved with a The stirring blade 2f; the stirring motor 2d can drive the stirring rod 2e to rotate, so that the stirring rod 2e can drive the stirring blade 2f to rotate, so that the stirring blade 2f can stir and mix the seeds and fertilizer in the storage barrel 2b.

Further, the blanking control assembly 7 includes a horizontally arranged rotating disk 7a and an L-shaped connecting frame 7b arranged on the top of the bottom plate 1, and the rotating disk 7a is arranged on the storage tank 2b and the distribution bin 3a Between, the rotating disk 7a is provided with several blanking holes 7c which are distributed in a circle and have different diameters, the side wall of the connecting frame 7b is provided with a reinforcement plate 7d, and the bottom of the center of the rotating disk 7a is fixed There is a rotating column 7e arranged vertically, and the rotating column 7e is connected with the connecting frame 7b by a bearing; the rotating disk 7a is provided with several blanking holes 7c with different diameters, so that the seeds can be discharged into the ground through the blanking holes 7c. In the distribution bin 3a, the rotating column 7e is used to install the rotating disk 7a, and the reinforcing plate 7d is used to fix the connecting frame 7b.

Further, as shown in Figure 6, Figure 6 is an enlarged view of A in Figure 5, the connecting frame 7b is provided with an adjusting motor 7f, the rotating column 7e is provided with a reduction gear 7g, and the adjusting motor 7f The output shaft of the output shaft is provided with a driving gear 7h meshed with the reduction gear 7g; the adjustment motor 7f can drive the driving gear 7h to rotate, and the driving gear 7h can drive the reduction gear 7g meshed with it to rotate, so that the rotating column 7e can rotate around its own Axis rotation.

Specifically, the walking mechanism 5 includes four running wheels 5a arranged at the bottom of the base plate 1, and the outer sidewall of the running wheels 5a is provided with several anti-skid ribs 5b distributed in a circle; the running wheels 5a can The bottom plate 1 is moved, and the anti-slip rib 5b is used to avoid the larger sliding of the running wheel 5a and increase the frictional force between it and the ground.

Specifically, as shown in Figure 5, Figure 5 is a partial cross-sectional schematic diagram 2 provided by the embodiment of the utility model, the spray mechanism 4 includes a liquid storage tank 4a and two spray assemblies arranged at intervals on the bottom plate 1 4b, the two spray assemblies 4b have the same structure and both include a pipe collar 4c arranged obliquely and an installation shaft 4d vertically arranged on the bottom plate 1, the bottom of the installation shaft 4d is fixedly connected with the pipe collar 4c, so The pipe collar 4c is provided with a spray pipe 4e which is fitted with it and is arranged obliquely. The spray pipe 4e is provided with a spray nozzle 4f, and the top of the liquid storage tank 4a is provided with a liquid inlet pipe 4g. The lower section of the liquid storage tank 4a is provided with a liquid outlet pipe 4h, and a three-way pipe is installed on the liquid outlet pipe 4h, and the two spray pipes 4e are all connected with the three-way pipe by a flexible pipe; the spray pipe 4e can The nutrient solution is discharged on the ground through the spray nozzle 4f, and the worker can add the nutrient solution to the inside of the liquid storage tank 4a through the liquid inlet pipe 4g, and the installation shaft 4d can drive the pipe clamp 4c to move during the rotation process, so that the spray pipe 4e It can rotate around the axis of the installation shaft 4d, so that the spray pipe 4e can spray at different angles and expand its spray area on the land.

Specifically, the first gear 8 and the second gear 8a are respectively sleeved on the two installation shafts 4d, and the bottom of the base plate 1 is provided with a stepping motor 8b whose output shaft is vertically upward, and the stepping motor The output shaft of 8b is sleeved with a third gear 8c meshed with the first gear 8; the stepping motor 8b works to drive the third gear 8c to rotate, and the third gear 8c can drive the first gear 8 to rotate. When rotating, it can drive the second gear 8a to rotate, so that the two installation shafts 4d can rotate at the same time, and the installation shaft 4d can drive the pipe collar 4c to rotate during the rotation, so that the two spray pipes 4e can spray at different angles. Spraying, expanding its spraying area on the land.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A sowing device for agricultural planting, characterized in that: it includes a base plate, a stocking mechanism, a seeding mechanism and a spraying mechanism, and the stocking mechanism, the seeding mechanism and the spraying mechanism are all arranged on the top of the bottom plate, and the The bottom of the base plate is provided with a walking mechanism, the storage mechanism is arranged above the sowing mechanism, the spray mechanism is arranged on the side of the sowing mechanism, and the sowing mechanism includes a sub-material bin and a closed box located under the sub-material bin. Assemblies, the top of the distribution bin is provided with a material inlet, the bottom of the distribution bin is provided with a fixed block integrally formed with it, the bottom of the fixed block is provided with a discharge port, and the bottom plate is located on the discharge port. There is a through groove under the mouth, the groove wall of the through groove is fixed with an inclined material guide slideway, the material distribution bin is provided with a material conveying assembly, and the closing assembly includes a sliding fit with the fixed block. The sliding plate and the moving parts used to drive the sliding plate to reciprocate. 2. The seeding device for agricultural planting according to claim 1, characterized in that: the conveying assembly includes a rotating shaft horizontally arranged on the separation bin, and the rotating shaft is sleeved with three distribution points distributed in a circle. The material plate, the top of the base plate is provided with a fixed frame, the top of the fixed frame is provided with a rotating motor, and the output shaft of the rotating motor is fixedly connected with the rotating shaft. 3. The seeding device for agricultural planting according to claim 2, characterized in that: the material transfer assembly includes a connecting frame and an extension rod arranged on the top of the sliding plate, a drive motor is provided at the bottom of the bottom plate, and the The output shaft of the driving motor is covered with a transmission plate, and the top of the transmission plate is provided with a drive cylinder arranged in the connection frame and matched with the connection frame, and a connection plate is provided on the side wall of the connection frame. The end of the connecting plate is sheathed on the extension rod. 4. The seeding device for agricultural planting according to claim 1, characterized in that: the material storage mechanism includes a support frame, a material storage barrel arranged on the support frame, and a blanking control assembly arranged below the material storage barrel , the upper section of the storage barrel is provided with a feed pipe, and the bottom of the storage barrel is provided with a discharge port. 5. The seeding device for agricultural planting according to claim 4, characterized in that: the top of the storage tank is provided with a stirring motor with the output shaft vertically facing downwards, and the output shaft of the stirring motor is sleeved with a A stirring rod, the stirring rod is covered with stirring paddles. 6. The seeding device for agricultural planting according to claim 4, characterized in that: the falling control assembly includes a horizontally arranged rotating disk and an L-shaped connecting frame arranged on the top of the bottom plate, the rotating disk It is arranged between the material storage barrel and the distribution bin. The rotating disk is provided with several blanking holes distributed in a circle and with different diameters. The side wall of the connecting frame is provided with a reinforcing plate. A vertical rotating column is fixed on the bottom of the center, and the rotating column is connected with the connecting frame through a bearing. 7. The seeding device for agricultural planting according to claim 6, characterized in that: the connecting frame is provided with an adjusting motor, the rotating column is sleeved with a reduction gear, and the output shaft of the adjusting motor is sleeved There is a drive gear meshing with a reduction gear. 8. The seeding device for agricultural planting according to claim 1, characterized in that: the traveling mechanism includes four driving wheels arranged at the bottom of the base plate, and the outer sidewall of the driving wheels is provided with several wheels distributed in a circle. non-slip ribs. 9. The seeding device for agricultural planting according to claim 1, characterized in that: the spray mechanism includes a liquid storage tank and two spray assemblies arranged at intervals on the bottom plate, and the structure of the two spray assemblies They are the same and both include a slanted pipe collar and an installation shaft vertically arranged on the bottom plate. The bottom of the installation shaft is fixedly connected with the pipe collar. Spray pipe, the spray nozzle is provided on the spray pipe, the liquid inlet pipe is provided on the top of the liquid storage tank, the liquid outlet pipe is provided at the lower section of the liquid storage tank, and a three-way pipe is installed on the liquid outlet pipe , the two spray pipes are connected with the three-way pipe through a hose. 10. The seeding device for agricultural planting according to claim 9, characterized in that: the first gear and the second gear are sleeved on the two mounting shafts respectively, and the bottom of the bottom plate is provided with an output shaft vertical For an upward stepping motor, a third gear meshed with the first gear is sheathed on the output shaft of the stepping motor.