CN110463407A - A kind of agricultural excavator with cleaning function - Google Patents
A kind of agricultural excavator with cleaning function Download PDFInfo
- Publication number
- CN110463407A CN110463407A CN201910727787.4A CN201910727787A CN110463407A CN 110463407 A CN110463407 A CN 110463407A CN 201910727787 A CN201910727787 A CN 201910727787A CN 110463407 A CN110463407 A CN 110463407A
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- CN
- China
- Prior art keywords
- driving motor
- slide block
- position limiting
- bottom plate
- limiting slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
- A01B71/08—Means for protecting against dust, or the like, or for cleaning agricultural 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
- A01C5/04—Machines for making or covering holes for sowing or planting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of agricultural excavator with cleaning function belongs to agricultural machinery technological field, and traditional pit-picker manpower output is larger, and the problem of be not easy to soil on cleaning spiral blade.It includes mobile framework, work box, elevating mechanism and wiper mechanism, elevating mechanism is set inside work box, the second driving motor is arranged in elevating mechanism lower end, second driving motor output shaft is fixedly connected with drilling rod, screw blade is arranged in drilling rod surface, wiper mechanism is equipped with around screw blade, the present invention is used cooperatively by fixed mechanism and elevating mechanism, reduce manpower output when digging pit, substantially increase the degree of automation of pit-picker, improve efficiency of digging pit, the design of wiper mechanism is used simultaneously, effectively screw blade can be cleaned, soil is avoided to be attached on screw blade, reduce the power output loss of screw blade, the service life of screw blade is extended simultaneously.
Description
Technical field
The invention belongs to agricultural machinery technological field, specifically a kind of agricultural excavator with cleaning function.
Background technique
Pit-picker is mountainous region, and Qiu Ling, Gullied afforestation, apply fertilizer the special-purpose machinery quickly digged pit.Pit-picker allows people
It is freed from heavy manual labor, is widely used in planting trees, plantation fruit-bearing forest, hedge and autumn are to applying fruit trees with fertilizer etc..
Its powerful is strong, good appearance, and operation is comfortable, and labor intensity is low, is suitble to various landform, high-efficient, is convenient for field field
Operation.
Traditional pit-picker needs the hand-held pit-picker of staff to dig pit when in use, and pit-picker can produce at work
Raw very big vibration will soon feel the fatigue of hand muscle, and due to containing in soil for a long time by hand steered on machine
Have a large amount of moisture, when the screw blade of pit-picker enters in soil, the biggish soil of viscosity easy to attach, if not to its into
If row cleaning, the impurity in soil can be chemically reacted with screw blade, leverage the service life of screw blade,
And a large amount of soil of attachment will increase the power output of pit-picker.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of agricultural with cleaning function is proposed
With excavator, there is the agricultural of cleaning function to be with excavator technical problems to be solved for this: traditional pit-picker manpower output
It is larger, and the problem of cleaning spiral blade face soil easy to attach.
Object of the invention can be realized by the following technical scheme:
A kind of agricultural excavator with cleaning function, including mobile framework, work box, elevating mechanism and cleaning machine
Elevating mechanism is arranged inside the work box in structure, mechanism for installing, work box and electric cabinet in the mobile framework, described
The second driving motor is arranged in elevating mechanism lower end, and second driving motor output shaft is fixedly connected with drilling rod, the drilling rod surface
Screw blade is set, and electric cabinet is electrically connected the second driving motor, is equipped with wiper mechanism around the screw blade.
The working principle of the invention is: when using pit-picker, entire pit-picker being first moved to the place for needing to dig pit, is led to
Crossing rotation turntable 203 drives threaded post 202 to do the movement on vertical direction in thread bush 201, and 202 bottom end of threaded post is pierced soil
Inside ground, the first driving motor 501 and the second driving motor 7 are started by electric cabinet 4, is driven and is bored by the second driving motor 7
The screw blade 9 on 8 surface of bar rotates, then drives threaded rod 502 to rotate by 501 output shaft of the first driving motor and turn clockwise
It is dynamic, screw thread of first position limiting slide block 503 due to engaging 502 surface of threaded rod, and then by threaded rod 502 to the first position limiting slide block
503 generate a thrust horizontally to the right so that the first position limiting slide block 503 moves right, while the second position limiting slide block 504 due to
The screw thread on 502 surface of threaded rod is engaged, and then a level pushing away to the left is generated to the second position limiting slide block 504 by threaded rod 502
Power, so that the second position limiting slide block 504 moves downward, during this, kinematic link 505 pushes the second of 506 surface of erecting bed to drive
Dynamic motor 7 declines, and then carries out pit excavation work, and after the completion of pit excavation work, the reversion of the first driving motor 501 drives circular knife
Piece 9 rises, and adheres to soil on screw blade 9 at this time, and the water in water storage box 602 is pumped into cleaning shell 603 by water pump 601
In the storage chamber 604 in portion, then 9 surface of screw blade is sprayed at by spray head 605, screw blade 9 is adhered to during digging pit
Soil cleans up, and completes the cleaning to screw blade 9, extends the service life of screw blade.
The mobile framework includes bottom plate, handrail and universal wheel, and handrail, and bottom plate following table is arranged in upper surface on the left of bottom plate
Universal wheel is arranged in face, while four fixed mechanisms being arranged on backplate surface, and plate upper surface also sets up electric cabinet, sets among bottom plate
Set working hole.
The fixed mechanism is located at four turnings of bottom plate comprising thread bush and threaded post, the screw thread are set on
On bottom plate, and thread bush runs through bottom plate, while threaded post is engaged inside thread bush, and turntable is arranged in the screw thread top end,
And threaded post bottom end is tapered.
Using the above structure, the movement on vertical direction is done in thread bush by rotation driven by rotary disc threaded post, can incited somebody to action
Threaded post bottom end pierces inside soil, improves the stability of entire pit-picker during the work time.
The work box left-hand face is bolted installation guard shield, and the elevating mechanism includes the first driving electricity
Machine, threaded rod, the first position limiting slide block, the second position limiting slide block and kinematic link, first driving motor are arranged in guard shield
It is interior, while the first driving motor output shaft runs through work box left-hand face, and the first driving motor output shaft is fixedly connected with spiral shell
Rasp bar, threaded rod left end hand of spiral and right end hand of spiral are on the contrary, and in the first limit of threaded rod left end surface setting
The second position limiting slide block is arranged in sliding block, threaded rod right end face, and first position limiting slide block and the second position limiting slide block engage threaded rod
The screw thread on surface, and kinematic link, the kinematic link are installed by screw in the first position limiting slide block and the second position limiting slide block lower end
It can be rotated by dot of screw, and the kinematic link other end is connected by screw to erecting bed, pacifies on the erecting bed
Fill the second driving motor.
Using the above structure, threaded rod rotation is driven to rotate clockwise by the first driving motor output shaft, the first limit
Screw thread of the sliding block due to engaging threaded rod surface, and then one pushing away horizontally to the right is generated to the first position limiting slide block by threaded rod
Power, so that the first position limiting slide block moves right, while screw thread of second position limiting slide block due to engaging threaded rod surface, and then by spiral shell
Rasp bar generates level thrust to the left to the second position limiting slide block, so that the second position limiting slide block moves downward, during this, passes
Dynamic connecting rod pushes the second driving motor decline on erecting bed surface, and then reaches the elevating function of pit-picker.
The wiper mechanism includes water pump, water storage box and cleaning shell, and the water pump, water storage box and cleaning shell setting exist
Backplate surface, and water pump input terminal connects water storage box by water pipe, while water pump output end accesses cleaning shell by water pipe.
The cleaning shell is hollow structure, and is in conical boss shape, storage chamber is arranged in cleaning shell, and clean outer
Spray head is installed, the spray head connects storage chamber on shell inner wall.
Using the above structure, the water in water storage box is pumped into the storage chamber of cleaning interior of shell by water pump, then by spraying
Head is sprayed at screw blade surface, and the soil that screw blade is adhered to during digging pit cleans up, and extends spiral guide sheet
Service life.
Compared with prior art, there is the agricultural of cleaning function to be had the advantage that with excavator for this
1. reducing manpower output when digging pit by being used cooperatively for fixed mechanism and elevating mechanism, substantially increasing
The degree of automation of pit-picker, improves efficiency of digging pit.
2. can effectively be cleaned to screw blade using the design of wiper mechanism, soil is avoided to be attached to spiral
On blade, the power output loss of screw blade is reduced, while extending the service life of screw blade.
Detailed description of the invention
Fig. 1 is a kind of plan structure shaft side figure of agricultural excavator with cleaning function；
Fig. 2 is to look up structure shaft side figure in a kind of agriculture excavator with cleaning function；
Fig. 3 is a kind of structural schematic diagram of fixed mechanism in agricultural excavator with cleaning function；
Fig. 4 is a kind of schematic diagram of internal structure of agricultural excavator with cleaning function；
Fig. 5 is a kind of schematic diagram of internal structure of wiper mechanism in agricultural excavator with cleaning function；
Fig. 6 is a kind of structure sectional view of wiper mechanism in agricultural excavator with cleaning function；
In figure: 1- mobile framework, 101- bottom plate, 102- handrail, 103- universal wheel, 104- working hole, 2- fixed mechanism,
201- thread bush, 202- threaded post, 203- turntable, 3- work box, 301- guard shield, 4- electric cabinet, 5- elevating mechanism, 501-
First driving motor, 502- threaded rod, the first position limiting slide block of 503-, the second position limiting slide block of 504-, 505- kinematic link, 506- peace
Platform, 6- wiper mechanism, 601- water pump, 602- water storage box, 603- cleaning shell, 604- storage chamber, 605- spray head, 7- second is filled to drive
Dynamic motor, 8- drilling rod, 9- screw blade.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
The embodiment of this patent is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining this patent, and cannot be understood as a limitation of this patent.
In the description of this patent, it is to be understood that term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship, be merely for convenience of description this patent and simplify description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to this patent.
In the description of this patent, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection ", " setting " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, set
It sets, or is integrally connected, is arranged.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this patent.
Fig. 1-6 is please referred to, a kind of agricultural excavator with cleaning function, including mobile framework are present embodiments provided
1, work box 3, elevating mechanism 5 and wiper mechanism 6, mechanism for installing 2, work box 3 and electric cabinet 4 in the mobile framework 1,
Elevating mechanism 5 is set inside the work box 3, and for driving equipment of digging pit to carry out elevating movement, 5 lower end of elevating mechanism is set
The second driving motor 7 is set, 7 output shaft of the second driving motor is fixedly connected with drilling rod 8, and circular knife is arranged in 8 surface of drilling rod
Piece 9 drives the screw blade 9 on 8 surface of drilling rod to rotate by the second driving motor 7, for digging pit, the electrical connection of electric cabinet 4 second
Driving motor 7 is equipped with wiper mechanism 6 around the screw blade 9, for cleaning to screw blade 9.
The mobile framework 1 includes bottom plate 101, handrail 102 and universal wheel 103, and handrail is arranged in 101 left side upper surface of bottom plate
102, and universal wheel 103 is arranged in 101 lower surface of bottom plate, by being used cooperatively for universal wheel 103 and handrail 102, facilitates work
The mobile entire pit-picker of personnel, while four fixed mechanisms 2 are set on 101 surface of bottom plate, when pit-picker at work, fixed machine
Structure 2 can fix entire pit-picker, and 101 upper surface of bottom plate also sets up electric cabinet 4, for controlling the use in entire pit-picker
Working hole 104 is arranged among bottom plate 101, rotating blade 9 is facilitated to fall for electric equipment.
The fixed mechanism 2 is located at four turnings of bottom plate 101 comprising thread bush 201 and threaded post 202, the spiral shell
Line set 201 is arranged on bottom plate 101, and thread bush 201 runs through bottom plate 101, while being engaged threaded post inside thread bush 201
202, turntable 203 is arranged in 202 top of threaded post, and 202 bottom end of threaded post is tapered, is driven by rotation turntable 203
Threaded post 202 does the movement on vertical direction in thread bush 201, can pierce 202 bottom end of threaded post inside soil, improves whole
The stability of a pit-picker during the work time.
3 left-hand face of work box is bolted installation guard shield 301, and the elevating mechanism 5 includes first
Driving motor 501, threaded rod 502, the first position limiting slide block 503, the second position limiting slide block 504 and kinematic link 505, described first drives
Dynamic motor 501 is arranged in guard shield 301, while 501 output shaft of the first driving motor runs through 3 left-hand face of work box, and
And 501 output shaft of the first driving motor is fixedly connected with threaded rod 502, the 502 left end hand of spiral of threaded rod and right end screw thread
It is contrary, and the first position limiting slide block 503, the second limit of 502 right end face of threaded rod setting are set on 502 left end surface of threaded rod
Position sliding block 504, the screw thread of first position limiting slide block 503 and the second position limiting slide block 504 engagement 502 surface of threaded rod, and first
Kinematic link 505 is installed by screw in position limiting slide block 503 and 504 lower end of the second position limiting slide block, and the kinematic link 505 can be with
Screw is that dot is rotated, and 505 other end of kinematic link is connected by screw to erecting bed 506, on the erecting bed 506
Second driving motor 7 is installed, drives the rotation of threaded rod 502 to rotate clockwise by 501 output shaft of the first driving motor, the first limit
Screw thread of the position sliding block 503 due to engaging 502 surface of threaded rod, and then one is generated to the first position limiting slide block 503 by threaded rod 502
Thrust horizontally to the right, so that the first position limiting slide block 503 moves right, while the second position limiting slide block 504 is due to engaging threaded rod
The screw thread on 502 surfaces, and then the thrust of a level to the left is generated to the second position limiting slide block 504 by threaded rod 502, so that second
Position limiting slide block 504 moves downward, and during this, kinematic link 505 pushes the second driving motor 7 decline on 506 surface of erecting bed,
And then reach the elevating function of pit-picker.
The wiper mechanism 6 includes water pump 601, water storage box 602 and cleaning shell 603, the water pump 601, water storage box 602
With the setting of cleaning shell 603 on 101 surface of bottom plate, and 601 input terminal of water pump connects water storage box 602, while water by water pipe
It pumping 601 output ends and cleaning shell 603 is accessed by water pipe, the cleaning shell 603 is hollow structure, and is in conical boss shape,
It cleans and storage chamber 604 is set in shell 603, and clean installation spray head 605 on 603 inner wall of shell, the spray head 605, which is connected, to be stored
Water in water storage box 602 is pumped into the storage chamber 604 inside cleaning shell 603 by water cavity 604 by water pump 601, then by spray head
605 are sprayed at 9 surface of screw blade, and the soil that screw blade 9 adheres to during digging pit is cleaned up, spiral guide sheet is extended
9 service life.
The working principle of the invention: when using pit-picker, entire pit-picker is first moved to the place for needing to dig pit, is passed through
Rotation turntable 203 drives threaded post 202 to do the movement on vertical direction in thread bush 201, and 202 bottom end of threaded post is pierced soil
The inside, starts the first driving motor 501 and the second driving motor 7 by electric cabinet 4, drives drilling rod 8 by the second driving motor 7
The screw blade 9 on surface rotates, then drives the rotation of threaded rod 502 to rotate clockwise by 501 output shaft of the first driving motor, the
One position limiting slide block 503 generates the first position limiting slide block 503 by threaded rod 502 due to engaging the screw thread on 502 surface of threaded rod
One thrust horizontally to the right, so that the first position limiting slide block 503 moves right, while the second position limiting slide block 504 is due to engaging spiral shell
The screw thread on 502 surface of rasp bar, and then the thrust of a level to the left is generated to the second position limiting slide block 504 by threaded rod 502, so that
Second position limiting slide block 504 moves downward, and during this, kinematic link 505 pushes second driving motor 7 on 506 surface of erecting bed
Decline, and then pit excavation work is carried out, after the completion of pit excavation work, the reversion of the first driving motor 501 drives screw blade 9 to rise,
Adhere to soil on screw blade 9 at this time, the water in water storage box 602 is pumped by the water storage cleaned inside shell 603 by water pump 601
In chamber 604, then 9 surface of screw blade is sprayed at by spray head 605, the soil that screw blade 9 is adhered to during digging pit is cleared up
Fall, completes the cleaning to screw blade 9, extend the service life of screw blade.
The present invention provides a kind of agricultural excavator with cleaning function passes through fixed mechanism and elevating mechanism
It is used cooperatively, reduces the manpower output digged pit and be, substantially increase the degree of automation of pit-picker, improve efficiency of digging pit,
The design for using wiper mechanism simultaneously, can effectively clean screw blade, soil is avoided to be attached on screw blade,
The power output loss of screw blade is reduced, while extending the service life of screw blade.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (6)
1. a kind of agricultural excavator with cleaning function, including mobile framework (1), work box (3), elevating mechanism (5) and
Wiper mechanism (6), which is characterized in that mechanism for installing (2), work box (3) and electric cabinet (4) on the mobile framework (1),
Elevating mechanism (5) are set inside the work box (3), the second driving motor (7) are arranged in elevating mechanism (5) lower end, described
Second driving motor (7) output shaft is fixedly connected drilling rod (8), and screw blade (9) are arranged in drilling rod (8) surface, electric cabinet (4)
It is electrically connected the second driving motor (7), is equipped with wiper mechanism (6) around the screw blade (9).
2. a kind of agricultural excavator with cleaning function according to claim 1, which is characterized in that the movable frame
Frame (1) includes bottom plate (101), handrail (102) and universal wheel (103), and handrail (102) are arranged in upper surface on the left of bottom plate (101), and
And bottom plate (101) lower surface setting universal wheel (103), while four fixed mechanisms (2), bottom plate are set on bottom plate (101) surface
(101) upper surface is also set up electric cabinet (4), and working hole (104) are arranged among bottom plate (101).
3. a kind of agricultural excavator with cleaning function according to claim 2, which is characterized in that the fixed machine
Structure (2) is located at four turnings of bottom plate (101) comprising thread bush (201) and threaded post (202), the thread bush (201) set
It sets on bottom plate (101), and thread bush (201) runs through bottom plate (101), while being engaged threaded post inside thread bush (201)
(202), threaded post (202) top setting turntable (203), and threaded post (202) bottom end is tapered.
4. a kind of agricultural excavator with cleaning function according to claim 1, which is characterized in that the work box
(3) left-hand face is bolted installation guard shield (301), and the elevating mechanism (5) includes the first driving motor
(501), threaded rod (502), the first position limiting slide block (503), the second position limiting slide block (504) and kinematic link (505), described first
Driving motor (501) setting is in guard shield (301), while the first driving motor (501) output shaft is left through work box (3)
Side surface, and the first driving motor (501) output shaft is fixedly connected threaded rod (502), threaded rod (502) left end screw thread
Direction and right end hand of spiral are on the contrary, and in threaded rod (502) left end surface setting the first position limiting slide block (503), threaded rod
(502) right end face setting the second position limiting slide block (504), first position limiting slide block (503) and the second position limiting slide block (504) are nibbled
The screw thread on threaded rod (502) surface is closed, and the first position limiting slide block (503) and the second position limiting slide block (504) lower end are pacified by screw
It fills kinematic link (505), the kinematic link (505) can be rotated by dot of screw, and kinematic link (505) is another
One end is connected by screw to erecting bed (506), installs the second driving motor (7) on the erecting bed (506).
5. a kind of agricultural excavator with cleaning function according to claim 4, which is characterized in that the cleaning machine
Structure (6) includes water pump (601), water storage box (602) and cleaning shell (603), the water pump (601), water storage box (602) and cleaning
Shell (603) setting is on bottom plate (101) surface, and water pump (601) input terminal connects water storage box (602) by water pipe, simultaneously
Water pump (601) output end accesses cleaning shell (603) by water pipe.
6. a kind of agricultural excavator with cleaning function according to claim 5, which is characterized in that outside the cleaning
Shell (603) is hollow structure, and is in conical boss shape, storage chamber (604) is arranged in cleaning shell (603), and clean shell
(603) spray head (605) are installed on inner wall, the spray head (605) connects storage chamber (604).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727787.4A CN110463407A (en) | 2019-08-08 | 2019-08-08 | A kind of agricultural excavator with cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727787.4A CN110463407A (en) | 2019-08-08 | 2019-08-08 | A kind of agricultural excavator with cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110463407A true CN110463407A (en) | 2019-11-19 |
Family
ID=68510413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910727787.4A Withdrawn CN110463407A (en) | 2019-08-08 | 2019-08-08 | A kind of agricultural excavator with cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110463407A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112352524A (en) * | 2020-10-27 | 2021-02-12 | 德清博发智能科技有限公司 | Fertilizer injection unit that farming in agricultural machine field used |
| CN112400416A (en) * | 2020-12-03 | 2021-02-26 | 丰城市天缘农林科技有限公司 | Ditching device for agriculture and forestry product planting |
| CN112697501A (en) * | 2021-02-01 | 2021-04-23 | 中国建筑材料工业地质勘查中心安徽总队 | Soil sampling mechanism for geological exploration and use method thereof |
| CN116097945A (en) * | 2023-03-09 | 2023-05-12 | 贵州省油料研究所 | Portable handheld soybean seeder |
-
2019
- 2019-08-08 CN CN201910727787.4A patent/CN110463407A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112352524A (en) * | 2020-10-27 | 2021-02-12 | 德清博发智能科技有限公司 | Fertilizer injection unit that farming in agricultural machine field used |
| CN112400416A (en) * | 2020-12-03 | 2021-02-26 | 丰城市天缘农林科技有限公司 | Ditching device for agriculture and forestry product planting |
| CN112697501A (en) * | 2021-02-01 | 2021-04-23 | 中国建筑材料工业地质勘查中心安徽总队 | Soil sampling mechanism for geological exploration and use method thereof |
| CN116097945A (en) * | 2023-03-09 | 2023-05-12 | 贵州省油料研究所 | Portable handheld soybean seeder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20191119 |