CN211531774U

CN211531774U - Agricultural machine seeder

Info

Publication number: CN211531774U
Application number: CN201922094916.9U
Authority: CN
Inventors: 董德民; 徐昌林; 杨成达; 马芳
Original assignee: Minqin Chengda Shunyuan Agricultural Machinery An Implement Manufacturing Co ltd
Current assignee: Minqin Chengda Shunyuan Agricultural Machinery An Implement Manufacturing Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-22
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to an agricultural machine seeder, including the backup pad, connect the pushing hands in the backup pad, connect the electronic walking wheel in the backup pad bottom, connect the seed holding vessel on backup pad upper portion, be provided with the discharge opening in the backup pad, be provided with the ejection of compact structure with the discharge opening intercommunication on the seed holding vessel, be connected with the structure of punching in the backup pad of discharge opening anterior segment, be connected with the structure of filling out soil in the backup pad of discharge opening rear end, be connected with the battery in the backup pad. The device has reduced staff's intensity of labour in the use, has improved seeding efficiency, buries the seed simultaneously in soil, has improved the survival rate of seed.

Description

Agricultural machine seeder

Technical Field

The utility model relates to the technical field of agricultural machinery, concretely relates to agricultural machine seeder.

Background

The seeding apparatus is a planting machine that uses crops and seeds as seeding objects.

The existing sowing mode usually adopts manual sowing, workers firstly dig pits for sowing seeds in the land, then spread the seeds in the pits, and finally fill the pits to finish the sowing, or directly spread the seeds in the soil by adopting a sowing machine.

The current mode of sowing need consume a large amount of manpower and materials, and the efficiency of sowing is very slow moreover, adopts current seeder to carry out the mode of sowing, and the seed can only be removed subaerial, hardly uses soil to carry out the landfill to the seed again, and the seed exposes like this subaerial very easily oxidation corruption, leads to the survival rate of seed not high.

SUMMERY OF THE UTILITY MODEL

Need consume a large amount of manpower and materials to current seeding mode, and the efficiency of seeding is very slow, adopt current seeder to carry out the mode of seeding, the seed can only be spilt subaerial, hardly use soil to carry out the landfill to the seed again, the seed exposes subaerial very easily oxidation corruption like this, the problem that the survival rate that leads to the seed is not high, this application has proposed an agricultural machine seeder, the device has reduced staff's intensity of labour in the use, the efficiency of seeding has been improved, simultaneously with the seed landfill in soil, the survival rate of seed has been improved.

In order to realize the above-mentioned purpose, the utility model provides an agricultural machine seeder, including the backup pad, connect the pushing hands in the backup pad, connect the electronic walking wheel in the backup pad bottom, connect the seed holding vessel on backup pad upper portion, be provided with the discharge opening in the backup pad, be provided with the ejection of compact structure with the discharge opening intercommunication on the seed holding vessel, be connected with the structure of punching in the backup pad of discharge opening anterior segment, be connected with the structure of filling out soil in the backup pad of discharge opening rear end, be connected with the battery in the backup pad.

The working principle and the process of the technical scheme are as follows: when the agricultural mechanical seeding device is used, an operator puts seeds into the seed storage tank, then pushes the whole device into a field to be seeded through the electric travelling wheels, then starts the punching structure and the discharging structure which are connected to the supporting plate, the punching structure punches seeding holes to be seeded at the front section, then the operator controls the electric travelling wheels to move the whole device, when the discharging hole moves to the position above the first drilled seeding hole, the operator starts the discharging structure to discharge the seeds in the storage tank from the discharging hole into the holes drilled by the punching structure, at the moment, the punching structure drills the next seeding hole, after the next seeding hole is drilled, the operator can close the discharging structure, the operator drives the whole device to move forwards through the electric travelling wheels, the spacing distance between crops is controlled according to actual needs, controlling the walking speed and the pause time interval of the electric walking wheel, and enabling the pause position of the electric walking wheel after rotating to just enable the discharge hole to be positioned above the next punched hole; simultaneously at the in-process that whole device removed, the structure of filling soil of connection in the backup pad when the seeding hole, can be with when punching the structure of punching the fine soil that is turned over to the soil surface push to the seeding hole that has sowed in bury the seed.

Compare with traditional seeding mode, agricultural machine seeder in this application has reduced staff's intensity of labour in the use, work efficiency has been improved, the device carries out the mode seeding that the seed was buried simultaneously, can make inside being located soil by the seed of seeding, can not only make the seed absorb the nutrient in the soil, promote the emergence of seed, the seed is still avoided simultaneously exposing on soil surface, the condition that the seed leads to the seed destroyed by oxidation corruption appears, the survival rate of the seed of being sowed has been improved.

Furthermore, ejection of compact structure is including connecting the discharging pipe in the storage tank bottom, be connected with on the discharging pipe and decide the material structure, decide the material structure with the discharge opening intercommunication. When the seeds in the storage tank are sowed into the drilled seeding holes, the worker opens the material fixing structure connected to the discharging pipe to discharge the seeds from the discharging pipe, and the seeds fall into the drilled seeding holes through the discharging holes. Through setting up the material structure surely, can further control the quantity of the seed of seeding in every seeding hole, make the seed later grow into behind the crops more even.

Furthermore, the material fixing structure comprises a branch pipe obliquely connected to the discharging pipe, one end of the branch pipe is communicated with the discharging pipe, the other end of the branch pipe is communicated with the discharging hole, a check block attached to the inner wall of the discharging pipe is arranged in the discharging pipe, and the lower end of the check block is connected with a telescopic structure for pushing the check block to move. This application is when needs are discharged the seed, extending structure drive dog removes, make the dog move away the position of discharging pipe and branch pipe intercommunication, can make the seed discharge from the position of discharging pipe and branch pipe intercommunication, it is downthehole to fall the seeding of having beaten through the discharge opening, extending structure drive dog removes the position of discharging pipe and branch pipe intercommunication, can plug up it, make the unable discharge of seed in the holding vessel, through setting up the time interval that shelters from of dog to discharging pipe and branch pipe intercommunication department, the output of the seed in the holding vessel can be controlled, realize the control to the volume of the interior seed of every seeding hole.

Furthermore, the telescopic structure comprises a vertical rod connected to the stop block, a top plate is connected to the lower portion of the vertical rod, a spring is connected between the discharging pipe and the top plate, the vertical rod is sleeved inside the spring, a cam is connected to the lower portion of the top plate, a first motor driving the cam to rotate is connected to the cam, and an output shaft of the first motor is connected with the cam. This application is rotatory through a motor drive cam, thereby make the cam drive roof reciprocate, and then make the montant of being connected with the roof reciprocate, can realize reciprocating of dog, through setting up the rotatory speed of a motor drive cam, can control the dog and close the discharge gate and open the interval time, the staff to the accuse of time has further been reduced, the error of having avoided different staff to appear in the time is the accuse, the quantity control that leads to the seed is inhomogeneous, staff's work load has been reduced, make more smooth and easy orderly of seeding process, further improve work efficiency.

Furthermore, the punching structure comprises an electric push rod connected to the upper end of the supporting plate, a first through hole is formed in the supporting plate, an output shaft of the electric push rod penetrates through the through hole in a movable mode, a second motor is connected to an output shaft of the electric push rod, and an output shaft of the second motor is connected with a rotating rod through a coupler. Agricultural machine device in this application is when punching, the staff starts electric putter and motor two, when punching, electric putter promotes motor two downstream, simultaneously rotatory with motor two's output shaft's rotary rod, under electric putter's effect, can make the rotary rod rotatory in limit, limit downstream, realize the effect of punching promptly, moreover, the steam generator is simple in operation, high durability and convenient use, the depth in the hole that can be beaten according to actual need simultaneously sets up the flexible distance of electric telescopic handle, and motor two's output shaft passes through shaft coupling and rotary rod connection, make being connected more firmly between motor two's output shaft and the rotary rod, also more stable in rotatory process.

Furthermore, the lower end of the rotating rod is of a pointed-end structure, and threads are arranged on the rotating rod. This application is through setting up the tip structure at the rotary rod lower extreme to and set up the screw thread on the rotary rod, can make the rotary rod more smooth and easy in getting into soil when punching, it is better to punch the effect.

Furthermore, the electric push rod is connected with a placing cavity, the second motor is placed in the placing cavity, a second through hole is formed in the placing cavity, and an output shaft of the second motor penetrates through the second through hole and extends to the outside of the placing cavity to be connected with a rotating rod. This application can start the effect to the protection of motor through placing the intracavity with motor two, reduces the impaired probability of motor, reduces the maintenance of equipment, reduces the cost of maintenance of whole device, has prolonged the life of whole device.

Further, the soil filling structure comprises an arc-shaped plate hinged to the bottom of the supporting plate through a hinge structure. This application passes through hinge structure and connects the arc, can be when whole device uses, with the arc rotation to the state of digging, when whole device does not use, with the arc rotation to the state of pasting tight backup pad bottom, like this when not using, can avoid whole device to remove in-process arc and stereoplasm cement ground contact, lead to the arc to be scraped badly.

Furthermore, the hinge structure comprises a hinge seat connected to the bottom of the support plate, a hinge shaft is connected to the hinge seat, the arc plate is connected to the hinge shaft, a limiting column is connected to the arc plate, a limiting hole for limiting and fixing the arc plate is formed in the support plate in a matched mode, and the limiting column is hinged to the arc plate. When agricultural mechanical device was using in this application, the staff will connect spacing post on the arc and insert the spacing downthehole that sets up in the backup pad through rotatory arc, can be fixed with the arc, makes the arc be in the state of digging in the use, makes it fill out the soil effect better.

To sum up, the utility model discloses compare in prior art's beneficial effect and be:

(1) agricultural machine seeder in this application has reduced staff's intensity of labour in the use, work efficiency has been improved, the device is seeded the mode that the seed was buried simultaneously, can make inside being located soil by the seed of sowing, can not only make the seed absorb the nutrient in the soil, promote the emergence of seed to be cogongrased, the seed has still been avoided simultaneously to expose on soil surface, the seed appears and leads to the destroyed condition of seed by oxidative corruption, the survival rate of the seed of being sowed has been improved.

(2) This application can further control the quantity of seeding at the downthehole seed of every seeding through setting up the material structure surely, makes the seed grow into more even behind the crops afterwards.

(3) This application is when needs are discharged the seed, extending structure drive dog removes, make the dog move away the position of discharging pipe and branch pipe intercommunication, can make the seed discharge from the position of discharging pipe and branch pipe intercommunication, it is downthehole to fall the seeding of having beaten through the discharge opening, extending structure drive dog removes the position of discharging pipe and branch pipe intercommunication, can plug up it, make the unable discharge of seed in the holding vessel, through setting up the time interval that shelters from of dog to discharging pipe and branch pipe intercommunication department, the output of the seed in the holding vessel can be controlled, realize the control to the volume of the interior seed of every seeding hole.

(4) This application is rotatory through a motor drive cam, thereby make the cam drive roof reciprocate, and then make the montant of being connected with the roof reciprocate, can realize reciprocating of dog, through setting up the rotatory speed of a motor drive cam, can control the dog and close the discharge gate and open the interval time, the staff to the accuse of time has further been reduced, the error of having avoided different staff to appear in the time is the accuse, the quantity control that leads to the seed is inhomogeneous, staff's work load has been reduced, make more smooth and easy orderly of seeding process, further improve work efficiency.

(5) This application is through setting up the tip structure at the rotary rod lower extreme to and set up the screw thread on the rotary rod, can make the rotary rod more smooth and easy in getting into soil when punching, it is better to punch the effect.

(6) This application can start the effect to the protection of motor through placing the intracavity with motor two, reduces the impaired probability of motor, reduces the maintenance of equipment, reduces the cost of maintenance of whole device, has prolonged the life of whole device.

(7) This application passes through hinge structure and connects the arc, can be when whole device uses, with the arc rotation to the state of digging, when whole device does not use, with the arc rotation to the state of pasting tight backup pad bottom, like this when not using, can avoid whole device to remove in-process arc and stereoplasm cement ground contact, lead to the arc to be scraped badly.

(8) When agricultural mechanical device was using in this application, the staff will connect spacing post on the arc and insert the spacing downthehole that sets up in the backup pad through rotatory arc, can be fixed with the arc, makes the arc be in the state of digging in the use, makes it fill out the soil effect better.

Drawings

Fig. 1 is a schematic structural view of an agricultural mechanical seeding device of the utility model.

Labeled as: 1-electric walking wheel, 2-supporting plate, 3-placing cavity, 4-motor two, 5-electric push rod, 6-rotating rod, 7-discharging hole, 8-hinged seat, 9-branch pipe, 10-seed storage tank, 11-discharging pipe, 12-stop block, 13-vertical rod, 14-spring, 15-top plate, 16-cam, 17-pushing handle, 18-hinged shaft, 19-arc plate, 20-limiting column and 21-limiting hole.

Detailed Description

All features disclosed in this specification may be combined in any combination, except features and/or steps that are mutually exclusive.

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to fig. 1 and the specific embodiment.

Example 1

Referring to fig. 1, the utility model provides an agricultural machine seeder, including backup pad 2, connect the pushing hands 17 in backup pad 2, connect the electric walking wheel 1 in backup pad 2 bottoms, connect the seed holding vessel 10 on backup pad 2 upper portions, be provided with discharge opening 7 in backup pad 2, be provided with the ejection of compact structure with discharge opening 7 intercommunication on the seed holding vessel 10, be connected with the structure of punching in the backup pad 2 of discharge opening 7 anterior segments, be connected with the structure of filling out soil in the backup pad 2 of discharge opening 7 rear ends, be connected with the battery in backup pad 2.

The working principle and the process of the technical scheme are as follows: when the agricultural mechanical seeding device in the application is used, an operator puts seeds into the seed storage tank 10, then pushes the whole device into a field to be seeded through the electric walking wheel 1, then starts the punching structure and the discharging structure which are connected to the supporting plate 2, the punching structure punches seeding holes to be seeded at the front section, then the operator controls the electric walking wheel 1 to move the whole device, when the discharging hole 7 moves to the upper part of the first drilled seeding hole, the operator starts the discharging structure to discharge the seeds in the storage tank from the discharging hole 7 to the drilled hole of the punching structure, at the moment, the punching structure drills the next seeding hole, after the next seeding hole is drilled, the operator can close the discharging structure, the whole device is driven to move forwards through the electric walking wheel 1, according to the spacing distance between crops which is controlled actually, controlling the walking speed and the pause time interval of the electric walking wheel 1, so that the pause position of the electric walking wheel 1 after rotating just enables the discharge hole 7 to be positioned above the next punched hole; meanwhile, in the moving process of the whole device, the soil filling structure connected to the supporting plate 2 can be pushed to the fine soil on the soil surface when the punching structure punches holes to fill seeds in the sowed sowing holes when the soil filling structure passes through the sowing holes.

Compare with traditional seeding mode, agricultural machine seeder in this application has reduced staff's intensity of labour in the use, work efficiency has been improved, the device carries out the mode seeding that the seed was buried simultaneously, can make inside being located soil by the seed of seeding, can not only make the seed absorb the nutrient in the soil, promote the sprouting of seed, the seed has still been avoided simultaneously exposing on soil surface, the seed appears and leads to the destroyed condition of seed by oxidative corruption, the survival rate of the seed of being sowed has been improved.

Example 2

Referring to fig. 1, based on embodiment 1, the discharge structure of this embodiment includes a discharge pipe 11 connected to the bottom of the storage tank, and a material fixing structure is connected to the discharge pipe 11 and is communicated with the discharge hole 7.

When the seeds in the storage tank are sowed into the sowed holes, the worker opens the material fixing structure connected to the discharging pipe 11 to discharge the seeds from the discharging pipe 11, and the seeds fall into the sowed holes through the discharging holes 7. Through setting up the material structure surely, can further control the quantity of the seed of seeding in every seeding hole, make the seed later grow into behind the crops more even.

Example 3

Referring to fig. 1, based on embodiment 1, the material fixing structure of this embodiment includes a branch pipe 9 obliquely connected to the discharge pipe 11, one end of the branch pipe 9 is communicated with the discharge pipe 11, the other end is communicated with the discharge hole 7, a stopper 12 attached to an inner wall of the discharge pipe 11 is disposed in the discharge pipe 11, and a telescopic structure for pushing the stopper 12 to move is connected to a lower end of the stopper 12.

This application is when needs are discharged the seed, extending structure drive dog 12 removes, make dog 12 remove the position of discharging pipe 11 and branch pipe 9 intercommunication, can make the seed discharge from the position of discharging pipe 11 and branch pipe 9 intercommunication, it is downthehole to fall the seeding that has beaten through discharge opening 7, extending structure drive dog 12 removes the position of discharging pipe 11 and branch pipe 9 intercommunication, can plug up it, make the unable discharge of seed in the holding vessel, through setting up the time interval that shelters from of dog 12 to discharging pipe 11 and branch pipe 9 intercommunication department, the output of the seed in the holding vessel can be controlled, realize the control to the volume of the downthehole seed of every seeding.

Example 4

Referring to fig. 1, based on embodiment 1, the telescopic structure of this embodiment includes a vertical rod 13 connected to a stopper 12, a top plate 15 is connected below the vertical rod 13, a spring 14 is connected between a discharge pipe 11 and the top plate 15, the vertical rod 13 is sleeved inside the spring 14, a cam 16 is connected below the top plate 15, a first motor driving the cam 16 to rotate is connected to the cam 16, and an output shaft of the first motor is connected to the cam 16.

This application is rotatory through a motor drive cam 16, thereby make cam 16 drive roof 15 reciprocate, and then make montant 13 of being connected with roof 15 reciprocate, can realize reciprocating of dog 12, through setting up the rotatory speed of a motor drive cam 16, can control dog 12 and close the discharge gate and open the interval time, the staff to the accuse of time has further been reduced, the error of having avoided different staff to appear in the time is the accuse, the quantity control that leads to the seed is inhomogeneous, staff's work load has been reduced, make seeding process more smooth and easy orderly, further work efficiency has been improved.

Example 5

Referring to fig. 1, based on embodiment 1, the punching structure of this embodiment includes an electric push rod 5 connected to an upper end of a support plate 2, a first through hole is formed in the support plate 2, an output shaft of the electric push rod 5 is movably inserted into the first through hole, a second motor 4 is connected to an output shaft of the electric push rod 5, and a rotating rod 6 is connected to an output shaft of the second motor 4 through a coupling.

Agricultural machine in this application is when punching, the staff starts electric putter 5 and two 4 of motor, when punching, electric putter 5 promotes two 4 downstream of motor, simultaneously it is rotatory with the rotary rod 6 of the output shaft of two 4 of motor, under electric putter 5's effect, can make 6 limit rotations of rotary rod, limit downstream, realize the effect of punching promptly, moreover, high durability and convenient use, the depth in the hole that can be beaten according to actual need simultaneously sets up the flexible distance of electric telescopic handle, and the output shaft of two 4 of motor passes through the shaft coupling and is connected with rotary rod 6, make being connected between two 4 of motor's output shaft and the rotary rod 6 more firm, also more stable in rotatory process.

Example 6

Referring to fig. 1, according to embodiment 1, the lower end of the rotating rod 6 of this embodiment is provided with a pointed structure, and the rotating rod 6 is provided with a thread.

This application is through setting up the tip structure at 6 lower extremes of rotary rod to and set up the screw thread on rotary rod 6, can make rotary rod 6 more smooth and easy in getting into soil when punching, it is better to punch the effect.

Example 7

Referring to fig. 1, based on embodiment 1, a placing cavity 3 is connected to an electric push rod 5 of this embodiment, a second motor 4 is placed in the placing cavity 3, a second through hole is formed in the placing cavity 3, and an output shaft of the second motor 4 penetrates through the second through hole and extends to the outside of the placing cavity 3 to be connected with a rotating rod 6.

This application can start the effect to the protection of motor through placing motor two 4 in placing chamber 3, reduces the impaired probability of motor, reduces the maintenance of equipment, reduces the cost of maintenance of whole device, has prolonged the life of whole device.

Example 8

Referring to fig. 1, the earth-filling structure of this embodiment comprises an arc-shaped plate 19 hinged to the bottom of a support plate 2 by a hinge structure, based on embodiment 1.

This application connects arc 19 through hinge structure, can be when whole device uses, with the rotatory state to the state of digging of arc 19, when whole device does not use, with the rotatory state to pasting 2 bottoms of backup pad of arc 19, when not using like this, can avoid whole device to remove in-process arc 19 and stereoplasm cement ground contact, lead to arc 19 to be scraped badly.

Example 9

Referring to fig. 1, based on embodiment 1, the hinge structure of this embodiment includes a hinge seat 8 connected to the bottom of a support plate 2, a hinge shaft 18 is connected to the hinge seat 8, an arc plate 19 is connected to the hinge shaft 18, a limiting post 20 is connected to the arc plate 19, a limiting hole 21 is formed in the support plate 2, the limiting post 20 is matched with the limiting hole to limit and fix the arc plate 19, and the limiting post 20 is hinged to the arc plate 19.

When agricultural mechanical device was using in this application, the staff will be connected spacing post 20 on arc 19 and insert the spacing hole 21 that sets up on backup pad 2 through rotatory arc 19, can be fixed with arc 19 in the staff inserts the spacing hole 21 that sets up on the arc 19, makes arc 19 be in the state of digging in the use, makes its effect of filling soil better.

As will be understood by those skilled in the art, the first motor, the second motor, the electric push rod, the storage battery and the coupling all belong to the prior art, and products of different models and specifications can be purchased on the market according to specific requirements.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The utility model provides an agricultural machine seeder, its characterized in that, includes backup pad (2), connects pushing hands (17) on backup pad (2), connects at electric walking wheel (1) of backup pad (2) bottom, connects seed holding vessel (10) on backup pad (2) upper portion, be provided with discharge opening (7) on backup pad (2), be provided with the discharge structure with discharge opening (7) intercommunication on seed holding vessel (10), be connected with the structure of punching on backup pad (2) of discharge opening (7) anterior segment, be connected with the structure of filling out soil on backup pad (2) of discharge opening (7) rear end, be connected with the battery on backup pad (2).

2. An agricultural mechanical seed sowing device according to claim 1, wherein the discharging structure comprises a discharging pipe (11) connected to the bottom of the storage tank, a material fixing structure is connected to the discharging pipe (11), and the material fixing structure is communicated with the discharging hole (7).

3. The agricultural mechanical seeding device according to claim 2, wherein the material fixing structure comprises a branch pipe (9) obliquely connected to the discharging pipe (11), one end of the branch pipe (9) is communicated with the discharging pipe (11), the other end of the branch pipe is communicated with the discharging hole (7), a stop block (12) attached to the inner wall of the discharging pipe (11) is arranged in the discharging pipe (11), and a telescopic structure for pushing the stop block (12) to move is connected to the lower end of the stop block (12).

4. The agricultural mechanical seeding device according to claim 3, wherein the telescopic structure comprises a vertical rod (13) connected to the stop block (12), a top plate (15) is connected below the vertical rod (13), a spring (14) is connected between the discharging pipe (11) and the top plate (15), the vertical rod (13) is sleeved inside the spring (14), a cam (16) is connected below the top plate (15), a first motor driving the cam (16) to rotate is connected to the cam (16), and an output shaft of the first motor is connected to the cam (16).

5. The agricultural mechanical seeding device according to claim 1, wherein the punching structure comprises an electric push rod (5) connected to the upper end of a support plate (2), a first through hole is formed in the support plate (2), an output shaft of the electric push rod (5) is movably arranged in the through hole in a penetrating manner, a second motor (4) is connected to the output shaft of the electric push rod (5), and a rotating rod (6) is connected to the output shaft of the second motor (4) through a coupling.

6. An agricultural mechanical seeding device according to claim 5, wherein the lower end of the rotating rod (6) is provided with a pointed structure, and the rotating rod (6) is provided with a thread.

7. The agricultural mechanical seeding device according to claim 5, wherein the electric push rod (5) is connected with a placing cavity (3), the motor II (4) is placed in the placing cavity (3), a through hole II is formed in the placing cavity (3), and an output shaft of the motor extends to the outside of the placing cavity (3) through the through hole II to be connected with the rotating rod (6).

8. An agricultural mechanical sowing apparatus according to claim 1, wherein the earth-filling structure comprises an arc-shaped plate (19) hinged at the bottom of the support plate (2) by a hinge structure.

9. An agricultural mechanical seeding device according to claim 8, wherein the hinged structure comprises a hinged seat (8) connected to the bottom of the support plate (2), a hinged shaft (18) is connected to the hinged seat (8), an arc-shaped plate (19) is connected to the hinged shaft (18), a limiting column (20) is connected to the arc-shaped plate (19), a limiting hole (21) is arranged on the support plate (2), the limiting column (20) is matched with the arc-shaped plate (19) for limiting and fixing, and the limiting column (20) is hinged to the arc-shaped plate (19).