CN109328551B - Soil loosening and sowing method using soil loosening and sowing integrated agricultural shovel - Google Patents
Soil loosening and sowing method using soil loosening and sowing integrated agricultural shovel Download PDFInfo
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- CN109328551B CN109328551B CN201811358569.XA CN201811358569A CN109328551B CN 109328551 B CN109328551 B CN 109328551B CN 201811358569 A CN201811358569 A CN 201811358569A CN 109328551 B CN109328551 B CN 109328551B
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- shovel
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- loosening
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/02—Hand sowing implements
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/02—Hand tools for making holes for sowing, planting or manuring
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
- Sowing (AREA)
Abstract
According to the method for loosening soil and sowing by using the soil-loosening and sowing integrated agricultural shovel, the agricultural shovel comprises a shovel body unit with a shovel head, a shovel handle, a stretching unit for pulling the shovel head and a sowing unit, and the method comprises the following steps: s1, the operator holds the handle of the shovel handle, and the index finger and the middle finger are placed on the hand lever at one end of the stretching piece; s2, inserting the shovel head into the soil obliquely under the action of a hand pushing force; s3, the forefinger and the middle finger stretch the hand lever and drive the stretching piece to pull the shovel head, the shovel head turns upwards under the action of the pulling force, at the moment, the soil loosens, and a pit is dug; s4, putting the prepared seeds into the communicating pipe of the particle channel, and allowing the particles to fall into the thrown pot hole along the communicating pipe; s5, loosening the hand lever, and resetting the shovel head under the action of the elastic mechanism; and S6, lifting the shovel head out of the soil, filling the soil into the pot hole, or pushing the soil to the pot hole by feet, and completing the sowing process once.
Description
The invention relates to a divisional application with the application number of 2016108932624 in 2016, 10, 13 and the name of 'an agricultural shovel integrating soil loosening and sowing'.
Technical Field
The invention relates to an application method of an agricultural tool, in particular to a method for loosening soil and sowing seeds by using an agricultural shovel integrating soil loosening and sowing.
Background
China is a big agricultural country, has vast land and various terrain structures, and has plains, mountainous regions, hills and the like. Due to the different land topography, some farmlands cannot be mechanized for cultivation, such as terraces on mountains and fields on hilly lands, and agricultural machines on these fields are difficult to access for operation. In the case of planting crops in places where these agricultural machines cannot work, a method of loosening soil with a rake, digging a pit with a shovel, sowing the pit, and sealing the soil is currently widely used. The production mode needs workers to stoop for working and stoop for sowing, and has the problems of high labor intensity and low sowing efficiency.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for loosening soil and sowing seeds using an agricultural shovel integrating loosening soil and sowing.
The invention provides a method for loosening soil and sowing by using an agricultural shovel integrating soil loosening and sowing, which comprises the steps of loosening soil and sowing by using the agricultural shovel integrating soil loosening and sowing, wherein the agricultural shovel comprises a shovel body unit with a shovel head, a shovel handle, a stretching unit with a shovel head and a sowing unit, the shovel body unit comprises the shovel head and a shovel shoulder which are rotatably connected through a hinge, the shovel handle is connected with the upper part of the shovel body unit, the shovel shoulder is positioned above the shovel head, the shovel shoulder is provided with a concave surface, the hinge is arranged between the shovel head and the shovel shoulder to enable the shovel head to rotate towards the direction that the shovel shoulder is provided with the concave surface, the shovel body unit also comprises an elastic mechanism, two ends of the elastic mechanism are connected with the shovel head and the shovel shoulder, the elastic mechanism is arranged on the same surface of the shovel head and the shovel shoulder opposite to the concave surface and used for enabling the shovel head and the shovel shoulder to be on the same surface under the action of the elastic force, and the stretching unit comprises a bracket, The stretching piece is any one of a straight rod, a rope and a chain, the seeding unit comprises a communicating pipe with openings at two ends, the communicating pipe is fixedly connected to the handle on the reverse side of the concave surface, the upper opening of the communicating pipe is over against the handle, the lower opening is positioned above the shovel shoulder,
the method comprises the following steps:
s1, the operator holds the handle of the shovel handle, and the index finger and the middle finger are placed on the hand lever at one end of the stretching piece;
s2, inserting the shovel head into the soil obliquely under the action of a hand pushing force;
s3, the forefinger and the middle finger stretch the hand lever and drive the stretching piece to pull the shovel head, the shovel head turns upwards under the action of the pulling force, at the moment, the soil loosens, and a pit is dug;
s4, putting the prepared seeds into the communicating pipe of the particle channel, and allowing the particles to fall into the dug pit along the communicating pipe;
s5, loosening the hand lever, and resetting the shovel head under the action of the elastic mechanism;
and S6, lifting the shovel head out of the soil, filling the soil into the pot hole, or pushing the soil to the pot hole by feet, and completing the sowing process once.
The method for loosening the soil and sowing by using the soil loosening and sowing integrated agricultural shovel provided by the invention can also have the following characteristics: wherein, the one side of shovel head is the cambered surface, and the crooked orientation of cambered surface is the same with the sunken direction of concave surface.
In addition, the method for loosening the soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel provided by the invention can also have the following characteristics: the elastic mechanism comprises a plurality of elastic pieces which are respectively arranged on the shovel head and the shovel shoulder, one end of each elastic piece is arranged on the shovel head, and the other end of each elastic piece is arranged on the shovel shoulder.
In addition, the method for loosening the soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel provided by the invention can also have the following characteristics: wherein, the elastic piece is a spring or a metal elastic strip.
In addition, the method for loosening the soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel provided by the invention can also have the following characteristics: the shovel handle comprises a handle rod and a handle, one end of the handle rod is fixedly connected with the shovel shoulder, and the other end of the handle rod is fixedly connected with the handle.
In addition, the method for loosening the soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel provided by the invention can also have the following characteristics: wherein, the support has the cavity that lets the tensile piece pass through, sets up on the handle pole with the concave surface coplanar, and tensile piece one end fixed connection is on the cambered surface of shovel head, and the other end and hand lever fixed connection, hand lever are located the top of support for the tensile piece of hand power drives the shovel head and rotates.
In addition, the method for loosening the soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel provided by the invention can also have the following characteristics: wherein, the upper opening of the communicating pipe is funnel-shaped.
Action and Effect of the invention
According to the method for loosening the soil and sowing by using the soil loosening and sowing integrated agricultural shovel, soil loosening and sowing are performed by using the soil loosening and sowing integrated agricultural shovel, the agricultural shovel comprises a shovel body unit with a shovel head, a shovel handle, a stretching unit with a shovel head and a sowing unit, the shovel body unit comprises the shovel head and a shovel shoulder with a concave surface which are rotatably connected through a hinge, and an elastic mechanism, the two ends of the elastic mechanism are connected with the shovel head and the shovel shoulder, and the elastic mechanism is arranged on the same surface of the shovel head and the shovel shoulder opposite to the concave surface and used for enabling the shovel head and the shovel shoulder to be in the same plane under the action of elastic force.
The soil loosening and seeding integrated agricultural shovel provided by the invention has the advantages that the long shovel handle is provided, a user can perform seeding operation in a standing mode, squatting is avoided, soil loosening and seeding can be completed in one go, the labor intensity can be reduced, the operation is rapid and convenient, and the seeding efficiency is high.
Drawings
FIG. 1 is a perspective view of an agricultural shovel in an embodiment of the present invention;
FIG. 2 is a view from the direction A of FIG. 1 in an embodiment of the present invention;
FIG. 3 is a partially enlarged perspective view of portion B of section E of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 4 is a partially enlarged perspective view of section C of FIG. 2 at section E in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of a shovel body according to an embodiment of the present invention; and
fig. 6 is a partially enlarged perspective view of the portion D of fig. 2 according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the following embodiments specifically describe the soil loosening and sowing integrated agricultural shovel and the soil loosening and sowing method of the invention with reference to the attached drawings.
Fig. 1 is a perspective view of an agricultural shovel in an embodiment of the present invention.
The agricultural shovel 100 shown in fig. 1 includes a shovel unit 10, a shovel shaft 20, a stretching unit 30, and a sowing unit 40.
FIG. 2 is a view from the direction A of FIG. 1 in an embodiment of the present invention;
FIG. 3 is a partially enlarged perspective view of portion B of section E of FIG. 2 in accordance with an embodiment of the present invention;
fig. 4 is a partially enlarged perspective view of part C of fig. 2 in the embodiment of the present invention.
As shown in fig. 2, 3, and 4, blade unit 10 includes a blade head 11, a blade shoulder 12, a hinge 13, a plurality of spring mounts 14, and a resilient mechanism 15.
The one end of shovel head 11 is most advanced, and the one side of shovel head 11 sets up to the cambered surface, and the another side is the plane, and the material of shovel head 11 is the metal, and shovel head 11 adopts iron to make in this embodiment.
The four spring supports 14 are respectively fixedly arranged at the upper end of the shovel head and the lower end of the shovel handle and are arranged on the same surface of the shovel head 11 and the shovel shoulder 12 opposite to the concave surface.
The elastic mechanism 15 includes a plurality of elastic members respectively disposed on the shovel head 11 and the shovel shoulder 12, one end of the elastic member is disposed on the spring support 14 of the shovel head 11, and the other end is disposed on the spring support 14 of the shovel shoulder 12. The elastic element makes shovel head 11 and shovel shoulder 12 be in the same plane under the effect of elastic force. The elastic piece is a spring or a metal elastic strip. In this embodiment, the elastic member is 2 springs.
Fig. 5 is a schematic view of a shovel body in an embodiment of the invention.
As shown in fig. 5, the blade 20 includes a handle 21 and a handle 22.
The handle rod 21 is cylindrical, and the lower end of the handle rod 21 is connected with the upper part of the shovel shoulder 12 through a connecting cylinder.
The handle 22 is fixedly connected with the upper end of the handle rod 21.
As shown in fig. 1 and 2, the stretching unit 30 includes a plurality of brackets 31, a stretching member 32, and a pull rod 33.
Two supports 31 include first support 311 and second support 312, respectively fixed connection on the handle pole 21 with the concave surface coplanar, and first support 311 sets up in the below of handle 22, and second support 312 sets up in the top of shovel shoulder 12, and support 31 is the cylindricality, has the cavity that lets tensile piece pass through, and in this embodiment, the end of support 31 sets up to the sphere, is provided with the upper and lower through-hole that lets tensile piece 32 pass through in the ball.
One end of the stretching piece 32 is fixedly connected to the arc surface of the shovel head through a screw, the other end of the stretching piece is fixedly connected with the hand lever 33, the stretching piece 32 is any one of a straight rod, a rope and a chain, and in the embodiment, the stretching piece 32 is a steel wire rope.
The hand lever 33 is disposed above the bracket 31, and is fixedly connected to the other end of the stretching member 32, so as to pull the stretching member 32 to drive the shovel head to rotate.
The sowing unit 40 includes a communication pipe 41, an inlet 42, and a plurality of links 43.
The communicating pipe 41 is a straight pipe with an upper opening and a lower opening, the upper opening of the communicating pipe 41 is opposite to the handle 22, and the lower opening is conical and is positioned above the shovel shoulder 12.
Fig. 6 is a partially enlarged perspective view of the portion D of fig. 2 according to an embodiment of the present invention.
As shown in fig. 6, the inlet 42 is funnel-shaped and fixedly coupled to the upper opening of the communication pipe 41.
As shown in fig. 2, 3 connecting rods 43 are sequentially and fixedly connected to the handle 21 on the opposite side of the concave surface, one end of each connecting rod 43 is fixedly connected to the handle 21, and the other end is fixedly connected to the communicating pipe 41. In this embodiment, the connecting rod 43 is connected to the communicating tube 41 and the handle 21 by welding.
The operation steps of the soil loosening and sowing integrated agricultural shovel 100 are as follows:
before work, the shovel head 11 and the shovel shoulder 12 are in a straight line under the stretching action of a back side spring and form an integral shovel, an operator holds a handle 22 of a shovel handle 20, and an index finger and a middle finger are placed on a cylindrical hand lever 33 at one end of a steel wire rope; under the effect of hand power, insert shovel head 11 to one side in the soil, forefinger and well finger stretch hand lever 33 and drive wire rope pulling shovel head 11, this shovel head 11 upwards overturns under the effect of pulling force, at this moment, soil just can become flexible, dig out a pothole, the kind of seed that will prepare in advance is put into granule passageway communicating pipe 41, the granule just falls to the pothole of digging out along communicating pipe 41, loosen hand lever 33, shovel head 11 just resets under the effect of spring force, bring out soil with the shovel, soil just can fill out to the pothole, or push soil to the pothole with the foot, a seeding process is accomplished.
Effects and effects of the embodiments
According to the method for loosening the soil and sowing by using the soil loosening and sowing integrated agricultural shovel, soil loosening and sowing are performed by using the soil loosening and sowing integrated agricultural shovel, the agricultural shovel comprises a shovel body unit with a shovel head, a shovel handle, a stretching unit and a sowing unit, the stretching unit is used for pulling the shovel head up, the shovel body unit comprises the shovel head, the shovel shoulder and an elastic mechanism, the shovel head and the shovel shoulder are connected through hinges in a rotating mode, the shovel head and the shovel shoulder are connected to two ends of the elastic mechanism, the elastic mechanism is arranged on the same face of the shovel head and the shovel shoulder opposite to the concave face, and the shovel head and the shovel shoulder are located on the same plane under the action of elastic force.
The agricultural shovel of seeding integration that loosens soil that this embodiment provided has long shovel handle, and the user can stand and sow the operation, avoids squatting down, loosens the soil and sow and can accomplish in one go, can reduce intensity of labour, and is swift convenient, has the efficient characteristics of seeding.
In addition, one side of the shovel head is an arc surface, and the shovel head can be more conveniently inserted into soil due to the arrangement of the arc surface.
Furthermore, the seeding unit comprises a communicating pipe with openings at two ends, and the upper opening of the communicating pipe is funnel-shaped, so that the seeding unit is convenient for throwing the grains; the lower end of the pipeline is a conical opening, so that the falling of particles can be observed conveniently.
Furthermore, the elastic part adopts a spring which has the characteristics of low cost and convenient maintenance.
Claims (7)
1. A method for loosening soil and sowing by using a soil loosening and sowing integrated agricultural shovel, which loosens soil and sows by using the soil loosening and sowing integrated agricultural shovel, comprises a shovel body unit with a shovel head, a shovel handle, a stretching unit for pulling up the shovel head and a sowing unit,
wherein the shovel body unit comprises the shovel head and the shovel shoulder which are rotationally connected through a hinge,
the shovel handle is connected with the upper part of the shovel body unit,
the shovel shoulder is positioned above the shovel head and is provided with a concave surface,
the hinge is arranged between the shovel head and the shovel shoulder, so that the shovel head rotates towards the direction that the shovel shoulder has a concave surface,
the shovel body unit also comprises an elastic mechanism, two ends of the elastic mechanism are connected with the shovel head and the shovel shoulder, the elastic mechanism is arranged on the same surface of the shovel head and the shovel shoulder opposite to the concave surface and used for enabling the shovel head and the shovel shoulder to be positioned on the same plane under the action of elastic force,
the stretching unit comprises a bracket, a stretching piece and a hand lever, the stretching piece is any one of a straight rod, a rope and a chain,
the seeding unit comprises a communicating pipe with openings at two ends, the communicating pipe is fixedly connected to the handle on the reverse side of the concave surface, the upper opening of the communicating pipe is over against the handle, the lower opening is positioned above the shovel shoulder,
the method for loosening the soil and sowing comprises the following steps:
s1, an operator holds the handle of the shovel handle by hand, and an index finger and a middle finger are placed on the hand lever at one end of the stretching piece;
s2, inserting the shovel head into the soil obliquely under the action of a hand pushing force;
s3, stretching the hand lever by the forefinger and the middle finger and driving the stretching piece to pull the shovel head, and turning the shovel head upwards under the action of the pulling force, so that the soil is loosened and a pot hole is dug;
s4, putting the prepared seeds into the communicating pipe of the particle channel, and allowing the particles to fall into the dug pit along the communicating pipe;
s5, loosening the hand lever, and enabling the shovel head to reset under the action of the elastic mechanism;
and S6, lifting the shovel head out of the soil, filling the soil into the pot hole, or pushing the soil into the pot hole by feet, and completing the sowing process once.
2. The method for loosening soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel of claim 1, which is characterized in that:
one side of the shovel head is an arc surface, and the bending direction of the arc surface is the same as the sinking direction of the concave surface.
3. The method for loosening soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel of claim 1, which is characterized in that:
the elastic mechanism comprises a plurality of elastic pieces, one end of each elastic piece is arranged on the shovel head, and the other end of each elastic piece is arranged on the shovel shoulder.
4. The method for loosening soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel as claimed in claim 3, wherein:
wherein, the elastic piece is a spring or a metal elastic strip.
5. The method for loosening soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel as claimed in claim 2, characterized in that:
the shovel handle comprises a handle rod and a handle, one end of the handle rod is fixedly connected with the shovel shoulder, and the other end of the handle rod is fixedly connected with the handle.
6. The method for loosening soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel of claim 5, wherein the method comprises the following steps:
wherein the bracket is provided with a cavity for the stretching piece to pass through and is arranged on the handle rod on the same surface with the concave surface,
one end of the stretching piece is fixedly connected on the cambered surface of the shovel head, the other end of the stretching piece is fixedly connected with the hand lever,
the hand pull rod is positioned above the support and used for pulling the stretching piece to drive the shovel head to rotate.
7. The method for loosening soil and sowing seeds by using the soil loosening and sowing integrated agricultural shovel of claim 1, which is characterized in that:
wherein, the upper opening of the communicating pipe is funnel-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811358569.XA CN109328551B (en) | 2016-10-13 | 2016-10-13 | Soil loosening and sowing method using soil loosening and sowing integrated agricultural shovel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610893262.4A CN106612662B (en) | 2016-10-13 | 2016-10-13 | One kind, which is loosened the soil, sows integrated agricultural shovel |
| CN201811358569.XA CN109328551B (en) | 2016-10-13 | 2016-10-13 | Soil loosening and sowing method using soil loosening and sowing integrated agricultural shovel |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610893262.4A Division CN106612662B (en) | 2016-10-13 | 2016-10-13 | One kind, which is loosened the soil, sows integrated agricultural shovel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109328551A CN109328551A (en) | 2019-02-15 |
| CN109328551B true CN109328551B (en) | 2021-07-20 |
Family
ID=58855660
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811358876.8A Expired - Fee Related CN109362287B (en) | 2016-10-13 | 2016-10-13 | Novel agricultural shovel of seeding |
| CN201811346230.8A Expired - Fee Related CN109362286B (en) | 2016-10-13 | 2016-10-13 | Agricultural shovel |
| CN201811358569.XA Active CN109328551B (en) | 2016-10-13 | 2016-10-13 | Soil loosening and sowing method using soil loosening and sowing integrated agricultural shovel |
| CN201811347194.7A Expired - Fee Related CN109328550B (en) | 2016-10-13 | 2016-10-13 | Soil loosening and sowing integrated agricultural shovel |
| CN201610893262.4A Expired - Fee Related CN106612662B (en) | 2016-10-13 | 2016-10-13 | One kind, which is loosened the soil, sows integrated agricultural shovel |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811358876.8A Expired - Fee Related CN109362287B (en) | 2016-10-13 | 2016-10-13 | Novel agricultural shovel of seeding |
| CN201811346230.8A Expired - Fee Related CN109362286B (en) | 2016-10-13 | 2016-10-13 | Agricultural shovel |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811347194.7A Expired - Fee Related CN109328550B (en) | 2016-10-13 | 2016-10-13 | Soil loosening and sowing integrated agricultural shovel |
| CN201610893262.4A Expired - Fee Related CN106612662B (en) | 2016-10-13 | 2016-10-13 | One kind, which is loosened the soil, sows integrated agricultural shovel |
Country Status (1)
| Country | Link |
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| CN (5) | CN109362287B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109362287B (en) * | 2016-10-13 | 2021-06-18 | 上海理工大学 | Novel agricultural shovel of seeding |
| CN114073182A (en) * | 2020-08-19 | 2022-02-22 | 怀化恒祺农业发展股份有限公司 | Organic vegetable plants with device of digging |
| CN112840753B (en) * | 2021-01-19 | 2024-02-23 | 榆林市博朗园林绿化有限公司 | Gardens are planted and are used multi-functional instrument shovel |
| CN113950894B (en) * | 2021-11-30 | 2022-11-22 | 重庆市林业科学研究院 | Forestry thoughtlessly joins in marriage sapling that reforms transform and plants cavitation device |
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- 2016-10-13 CN CN201811358876.8A patent/CN109362287B/en not_active Expired - Fee Related
- 2016-10-13 CN CN201811346230.8A patent/CN109362286B/en not_active Expired - Fee Related
- 2016-10-13 CN CN201811358569.XA patent/CN109328551B/en active Active
- 2016-10-13 CN CN201811347194.7A patent/CN109328550B/en not_active Expired - Fee Related
- 2016-10-13 CN CN201610893262.4A patent/CN106612662B/en not_active Expired - Fee Related
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| AU2024983A (en) * | 1982-10-19 | 1984-05-03 | Ralph Mckay Limited | Tillage implement |
| CN2914621Y (en) * | 2006-04-18 | 2007-06-27 | 刘玉明 | Portable fiddle sower |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109328550A (en) | 2019-02-15 |
| CN109362287A (en) | 2019-02-22 |
| CN109362286B (en) | 2021-06-18 |
| CN109362286A (en) | 2019-02-22 |
| CN109328550B (en) | 2021-06-18 |
| CN109362287B (en) | 2021-06-18 |
| CN106612662A (en) | 2017-05-10 |
| CN109328551A (en) | 2019-02-15 |
| CN106612662B (en) | 2019-01-01 |
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