CN110741793A - Portable fertilizer sprinkler - Google Patents
Portable fertilizer sprinkler Download PDFInfo
- Publication number
- CN110741793A CN110741793A CN201911193188.5A CN201911193188A CN110741793A CN 110741793 A CN110741793 A CN 110741793A CN 201911193188 A CN201911193188 A CN 201911193188A CN 110741793 A CN110741793 A CN 110741793A
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- China
- Prior art keywords
- cavity
- end wall
- stirring
- fixedly connected
- fertilizer
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/005—Undercarriages, tanks, hoppers, stirrers specially adapted for seeders or fertiliser distributors
- A01C15/006—Hoppers
- A01C15/007—Hoppers with agitators in the hopper
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/12—Fertiliser distributors with movable parts of the receptacle
- A01C15/124—Fertiliser distributors with movable parts of the receptacle with adjustable shutters or slits
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/16—Fertiliser distributors with means for pushing out the fertiliser, e.g. by a roller
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Fertilizing (AREA)
Abstract
A movable fertilizer spraying device; the device mainly comprises a shell, a moving cavity is arranged in the shell, universal wheels capable of moving the device are arranged in the moving cavity, a stirring mechanism capable of providing power for the device and stirring fertilizers is arranged in the upper end wall of the moving cavity, a throwing mechanism capable of throwing the fertilizers is arranged in the right end wall of the moving cavity, a feeding mechanism capable of conveying the fertilizers to the throwing mechanism is arranged in the upper end wall of the feeding mechanism, when the fertilizers are required to be thrown, the fertilizers are manually moved to the places where the fertilizers are required to be thrown through the universal wheels, the stirring mechanism is started to stir the fertilizers, meanwhile, the stirring mechanism transmits power to the feeding mechanism, the stirred fertilizers are transmitted to the throwing mechanism, then the fertilizer is thrown by the throwing mechanism, the throwing work of the fertilizers is completed, and the device can automatically complete the stirring and throwing of the fertilizers, and the distance from the human body is far, so that the human health is not influenced.
Description
Technical Field
The invention relates to the field of fertilizers, in particular to a movable fertilizer spraying device.
Background
At present spray fertilizer in general farmland and all carry out manual spraying through the manual work holding the container, work efficiency is lower, easily causes the fatigue to contain the material harmful to the human body in the fertilizer, the distance is too near when spraying, can influence human health, and the even stirring is hardly accomplished to the fertilizer that sprays, causes the waste.
Disclosure of Invention
Aiming at the technical defects, the invention provides a movable fertilizer spraying device which can overcome the defects.
The invention relates to a movable fertilizer spraying device.
Preferably, a mechanical structure diagram of a movable fertilizer spraying device mainly comprises a machine shell, wherein a moving cavity is arranged in the machine shell, universal wheels capable of enabling the device to move are arranged in the moving cavity, a stirring mechanism capable of providing power for the device and stirring fertilizer is arranged in the upper end wall of the moving cavity, a throwing mechanism capable of throwing fertilizer is arranged in the right end wall of the moving cavity, and a feeding mechanism capable of conveying fertilizer to the throwing mechanism is arranged in the upper end wall of the feeding mechanism;
the throwing mechanism comprises a driven cavity arranged in the upper end wall of the moving cavity, the left end wall of the driven cavity is rotatably connected with a transmission shaft, the right end of the transmission shaft is fixedly connected with a transmission gear, a reset cavity is arranged in the right end wall of the moving cavity, a reset plate is slidably connected in the reset cavity, two throwing springs for connecting the lower end surface of the reset plate and the lower end wall of the reset cavity are arranged in the reset cavity, the lower end surface of the reset plate is fixedly connected with a connecting rope, the lower end of the connecting rope penetrates through the lower end wall of the reset cavity and is fixedly connected with the left end of the transmission shaft, the upper end surface of the reset plate is fixedly connected with a connecting block, the upper end surface of the connecting block penetrates through the upper end wall of;
when fertilizer needs to be thrown, through the universal wheel manual motion is to the place that needs fertilizer is thrown, starts rabbling mechanism stirs fertilizer, simultaneously rabbling mechanism transmission power arrives pan feeding mechanism, pan feeding mechanism will stir fertilizer transmission extremely on the throwing mechanism, then rabbling mechanism transmission power arrives throwing mechanism throws fertilizer, accomplishes the work of throwing of fertilizer.
Preferably, the stirring mechanism comprises a driving cavity arranged in the upper end wall of the moving cavity, the left end of the driving cavity is fixedly connected with a driving motor, the driving motor is in power connection with a driving shaft, the right end of the driving shaft penetrates through the right end wall of the driving cavity and is positioned in the driven cavity, the right end of the driving shaft is fixedly connected with an incomplete gear meshed with the driving gear, a driving belt wheel fixedly connected to the left end of the driving shaft is arranged in the driving cavity, the left end wall of the driving cavity is rotatably connected with a working shaft, the right end of the working shaft penetrates through the right end wall of the driving cavity, the left end of the working shaft is fixedly connected with a power belt wheel, the driving cavity is internally provided with a power belt connecting the power belt wheel with the driving belt wheel, the right end wall of the driving cavity is internally provided with a stirring cavity with an opening at the upper end and the lower end, the right end, the stirring device comprises a stirring shaft, a stirring blade, a stirring block, a limiting block, an upper opening, a lower opening and a feeding cavity, wherein the stirring blade is fixedly connected to the left end of the stirring shaft, the stirring block is fixedly connected to the right end of the stirring shaft, the limiting block is fixedly connected to the left end wall of the stirring cavity, and the feeding cavity is formed in the upper end wall of the stirring cavity and is communicated with the outside through.
Preferably, the throwing mechanism including rotate connect in the driven shaft of slave cavity left end wall, driven shaft right-hand member fixedly connected with incomplete gear engagement's rotating gear, be equipped with the control chamber in the slave cavity right-hand member wall, slave cavity left end wall rotates and is connected with the right-hand member and runs through slave cavity right-hand member wall and be located the rotation axis of control intracavity, rotation axis left end fixedly connected with rotating gear engagement's driven gear, rotation axis right-hand member fixedly connected with rotating bevel gear, control chamber rear end wall rotates and is connected with the lifting rack, lifting rack rear end fixedly connected with rotating bevel gear of rotating bevel gear engagement, lifting rack front end fixedly connected with rotating gear, be equipped with the upper end opening in the control chamber upper end wall with the lift chamber of stirring chamber intercommunication, be equipped with the upper end in the control chamber run through the control chamber upper end wall be located in the lift chamber and with rotating gear engagement The lifting rack, lifting rack up end fixedly connected with lifting cavity sliding connection's closing plate, be equipped with the connection in the lifting cavity the closing plate down the terminal surface with two sealing spring of lifting cavity lower extreme wall, terminal surface fixedly connected with sliding connection in under the closing plate the sealed piece of lifting cavity right side wall, be equipped with the left end face in the stirring cavity right-hand member wall with stirring cavity right-hand member wall parallel and level and right-hand member are located the pipeline wall of external world, be equipped with in the pipeline wall the left end opening can with the pipeline of stirring cavity intercommunication and right-hand member opening and external intercommunication.
Preferably, the incomplete gear is an incomplete gear and the toothed portion is a half.
Preferably, the throwing spring has large elasticity and can throw the fertilizer in the throwing arc block.
In conclusion, this device simple structure, the simple operation, the device can be automatic the completion to the stirring and the shed of fertilizer to can not influence human health far away with the people distance.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of a portable fertilizer spraying apparatus according to the present invention;
FIG. 2 is an enlarged view of the structure A-A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is an enlarged view of the structure B-B shown in FIG. 1 according to an embodiment of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
As shown in fig. 1-3, the mechanical structure of a movable fertilizer spraying device of the present invention mainly includes a housing 10, a moving cavity 12 is provided in the housing 10, a universal wheel 11 capable of moving the device is provided in the moving cavity 12, a stirring mechanism 51 capable of providing power for the device and stirring fertilizer is provided in an upper end wall of the moving cavity 12, a throwing mechanism 53 capable of throwing fertilizer is provided in a right end wall of the moving cavity 12, a feeding mechanism 52 capable of transporting fertilizer to the throwing mechanism 53 is provided in an upper end wall of the feeding mechanism 52, the throwing mechanism 53 includes a driven cavity 14 provided in an upper end wall of the moving cavity 12, a transmission shaft 46 is rotatably connected to a left end wall of the driven cavity 14, a transmission gear 15 is fixedly connected to a right end of the transmission shaft 46, a reset cavity 42 is provided in a right end wall of the moving cavity 12, a reset plate 41 is slidably connected in the reset cavity 42, the fertilizer spraying device is characterized in that two throwing springs 54 which are connected with the lower end face of the reset plate 41 and the lower end wall of the reset cavity 42 are arranged in the reset cavity 42, the lower end face of the reset plate 41 is fixedly connected with a lower end penetrating through the lower end wall of the reset cavity 42 and a connecting rope 13 fixedly connected with the left end of the transmission shaft 46, the upper end face of the reset plate 41 is fixedly connected with an upper end penetrating through the upper end wall of the reset cavity 42 and a connecting block 37 which is positioned outside, an arc throwing block 36 is fixedly connected with the upper end face of the connecting block 37, when fertilizer is required to be thrown, the universal wheel 11 is manually moved to a place where the fertilizer is required to be thrown, the stirring mechanism 51 is started to stir the fertilizer, meanwhile, the stirring mechanism 51 transmits power to the feeding mechanism 52, the feeding mechanism 52 transmits the stirred fertilizer to the throwing mechanism 53, and then the stirring mechanism 51 transmits power to the throwing mechanism 53 to throw the fertilizer, and finishing the fertilizer throwing work.
Advantageously, the stirring mechanism 51 comprises a driving chamber 22 arranged in the upper end wall of the moving chamber 12, the left end of the driving chamber 22 is fixedly connected with a driving motor 16, the driving motor 16 is connected with a driving shaft 23 with the right end penetrating through the right end wall of the driving chamber 22 and located in the driven chamber 14 in a power mode, the right end of the driving shaft 23 is fixedly connected with an incomplete gear 45 engaged with the transmission gear 15, a driving pulley 17 fixedly connected to the left end of the driving shaft 23 is arranged in the driving chamber 22, the left end wall of the driving chamber 22 is connected with a working shaft 20 with the right end penetrating through the right end wall of the driving chamber 22 in a rotating mode, the left end of the working shaft 20 is fixedly connected with a power pulley 21, a power belt 18 connecting the power pulley 21 and the driving pulley 17 is arranged in the driving chamber 22, and a stirring chamber 25 with an upper end and a, stir 25 right-hand member wall and rotate and be connected with the left end and run through stir 25 left-hand member wall and with the left end face with 20 right-hand member face fixed connection's of working shaft (mixing) shaft 29, (mixing) shaft 29 left end fixedly connected with stirring leaf 26, stirring shaft 29 right-hand member fixedly connected with stirring piece 28, stir 25 left-hand member wall fixedly connected with stopper 27 in chamber, be equipped with upper end opening and external intercommunication and lower extreme opening in the stir 25 upper end wall with the pan feeding chamber 24 of stir 25 intercommunication.
Advantageously, the throwing mechanism 53 comprises a driven shaft 19 rotatably connected to the left end wall of the driven cavity 14, the right end of the driven shaft 19 is fixedly connected with a rotating gear 44 engaged with the incomplete gear 45, a control cavity 43 is arranged in the right end wall of the driven cavity 14, the left end wall of the driven cavity 14 is rotatably connected with a rotating shaft 50 with the right end penetrating through the right end wall of the driven cavity 14 and positioned in the control cavity 43, the left end of the rotating shaft 50 is fixedly connected with a driven gear 49 engaged with the rotating gear 44, the right end of the rotating shaft 50 is fixedly connected with a rotating bevel gear 48, the rear end wall of the control cavity 43 is rotatably connected with a lifting rack 38, the rear end of the lifting rack 38 is fixedly connected with a rotating bevel gear 47 engaged with the rotating bevel gear 48, the front end of the lifting rack 38 is fixedly connected with a rotating gear 40, and a lifting cavity 35 with the upper end opening communicated with the stirring, the improved pipeline stirring device is characterized in that a lifting rack 38 is arranged in the control cavity 43, the upper end wall of the control cavity 43 is located in the lifting cavity 35 and meshed with the rotating gear 40, the upper end face of the lifting rack 38 is fixedly connected with a sealing plate 30 in sliding connection with the lifting cavity 35, two sealing springs 31 are arranged in the lifting cavity 35 and used for connecting the lower end face of the sealing plate 30 with the lower end wall of the lifting cavity 35, the lower end face of the sealing plate 30 is fixedly connected with a sealing block 32 in sliding connection with the right end wall of the lifting cavity 35, a left end face and a pipeline wall 34 are arranged in the right end wall of the stirring cavity 25, the left end face of the pipeline wall is flush with the right end wall of the stirring cavity 25, the right end of the pipeline wall is located outside, and a pipeline 33 is arranged in.
Advantageously, the incomplete gear 45 is an incomplete gear and the toothed portion is in half.
Advantageously, the throwing spring 54 is very resilient and can throw the fertilizer inside the throwing arc 36.
The applicant will now specifically describe a mobile fertilizer spraying apparatus of the present application with reference to figures 1-3 and the above description:
in the initial state, the throwing spring 54 is initially in a relaxed state, the sealing spring 31 is initially in a relaxed state, and the driving shaft 23 is initially in a toothed part to be disengaged from the transmission gear 15 and engaged with the rotating gear 44;
when the fertilizer mixer starts to work, fertilizer is manually poured into the stirring cavity 25 through the feeding cavity 24, the driving motor 16 is started to output power to drive the driving shaft 23 to rotate, the driving shaft 23 rotates to drive the driving belt wheel 17 to rotate, the driving belt wheel 17 rotates to drive the power belt wheel 21 to rotate through the power belt 18, the power belt wheel 21 rotates to drive the working shaft 20 to rotate, so that the stirring blades 26 and the stirring block 28 are driven to rotate, so that the fertilizer in the stirring cavity 25 is uniformly stirred, meanwhile, the driving shaft 23 rotates the first half circle to drive the incomplete gear 45 to rotate the first half circle, at the moment, the incomplete gear 45 is meshed with the rotating gear 44, the incomplete gear 45 does not mesh with the transmission gear 15, the incomplete gear 45 rotates to drive the rotating gear 44 to rotate, so that the driven shaft 19 is driven to rotate, the rotating gear 44 rotates to drive the driven gear 49 to rotate, thereby driving the rotating bevel gear 47 to rotate, thereby driving the lifting rack 38 to rotate, thereby driving the rotating gear 40 to rotate, thereby driving the lifting rack 38 to move downwards, driving the sealing plate 30 to move downwards and compress the sealing spring 31 by the downward movement of the rotating shaft 39, driving the sealing block 32 to move downwards by the downward movement of the sealing plate 30, and driving the sealing block 32 to move downwards by the downward movement of the sealing plate 30 and the sealing block 32, thereby communicating the stirring cavity 25 with the pipeline 33, and allowing the fertilizer stirred in the stirring cavity 25 to enter the pipeline 33 and then enter the throwing arc-shaped block 36;
the driving shaft 23 rotates the rear half circle to drive the incomplete gear 45 to rotate the rear half circle, at this time, the incomplete gear 45 is not meshed with the rotating gear 44, the incomplete gear 45 is meshed with the transmission gear 15, at this time, the rotating shaft 39 has no power, the sealing plate 30, the lifting rack 38 and the sealing block 32 move upwards under the elastic force of the sealing spring 31 to enable the stirring cavity 25 to be not communicated with the pipeline 33, at the same time, the incomplete gear 45 rotates the rear half circle to drive the transmission gear 15 to rotate, so that the transmission shaft 46 is driven to rotate and the connecting rope 13 is wound, the connecting rope 13 is wound to pull the reset plate 41 to move downwards left and compress the throwing spring 54, the reset plate 41 moves downwards left to drive the connecting block 37 and the throwing arc block 36 to move downwards left, and the throwing arc block 36 moves downwards to drive the fertilizer to move downwards to seat;
after the drive shaft 23 rotates the second half-turn, the drive shaft 46 has no power, and under the elastic action of the throwing spring 54, the reset plate 41 moves upward to the right, so that the connecting block 37 and the throwing arc-shaped block 36 are driven to move upward to the right, and the fertilizer is thrown out in the throwing arc-shaped block 36, thereby completing the throwing work of the fertilizer.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides a portable fertilizer sprinkler, includes the casing, its characterized in that: a moving cavity is arranged in the machine shell, universal wheels capable of enabling the device to move are arranged in the moving cavity, a stirring mechanism which provides power for the device and can stir the fertilizer is arranged in the upper end wall of the moving cavity, a throwing mechanism capable of throwing the fertilizer is arranged in the right end wall of the moving cavity, and a feeding mechanism capable of conveying the fertilizer to the throwing mechanism is arranged in the upper end wall of the feeding mechanism;
the throwing mechanism comprises a driven cavity arranged in the upper end wall of the moving cavity, the left end wall of the driven cavity is rotatably connected with a transmission shaft, the right end of the transmission shaft is fixedly connected with a transmission gear, a reset cavity is arranged in the right end wall of the moving cavity, a reset plate is slidably connected in the reset cavity, two throwing springs for connecting the lower end surface of the reset plate and the lower end wall of the reset cavity are arranged in the reset cavity, the lower end surface of the reset plate is fixedly connected with a connecting rope, the lower end of the connecting rope penetrates through the lower end wall of the reset cavity and is fixedly connected with the left end of the transmission shaft, the upper end surface of the reset plate is fixedly connected with a connecting block, the upper end surface of the connecting block penetrates through the upper end wall of;
when fertilizer needs to be thrown, through the universal wheel manual motion is to the place that needs fertilizer is thrown, starts rabbling mechanism stirs fertilizer, simultaneously rabbling mechanism transmission power arrives pan feeding mechanism, pan feeding mechanism will stir fertilizer transmission extremely on the throwing mechanism, then rabbling mechanism transmission power arrives throwing mechanism throws fertilizer, accomplishes the work of throwing of fertilizer.
2. A mobile fertilizer spray apparatus as recited in claim 1, further comprising: the stirring mechanism comprises a driving cavity arranged in the upper end wall of the moving cavity, the left end of the driving cavity is fixedly connected with a driving motor, the driving motor is in power connection with a driving shaft, the right end of the driving shaft penetrates through the right end wall of the driving cavity and is positioned in the driven cavity, the right end of the driving shaft is fixedly connected with an incomplete gear meshed with the transmission gear, a driving belt wheel fixedly connected to the left end of the driving shaft is arranged in the driving cavity, the left end wall of the driving cavity is rotatably connected with a working shaft, the right end of the working shaft penetrates through the right end wall of the driving cavity, the left end of the working shaft is fixedly connected with a power belt wheel, the driving cavity is internally provided with a power belt connecting the power belt wheel with the driving belt wheel, the right end wall of the driving cavity is internally provided with a stirring cavity with an opening at the upper end and the lower end, the right, the stirring device comprises a stirring shaft, a stirring blade, a stirring block, a limiting block, an upper opening, a lower opening and a feeding cavity, wherein the stirring blade is fixedly connected to the left end of the stirring shaft, the stirring block is fixedly connected to the right end of the stirring shaft, the limiting block is fixedly connected to the left end wall of the stirring cavity, and the feeding cavity is formed in the upper end wall of the stirring cavity and is communicated with the outside through.
3. A mobile fertilizer spraying apparatus as defined in claim 2 wherein: the throwing mechanism comprises a driven shaft which is rotatably connected with the left end wall of the driven cavity, a driven shaft right end fixedly connected with a rotating gear engaged with an incomplete gear, a control cavity is arranged in the right end wall of the driven cavity, the left end wall of the driven cavity is rotatably connected with a right end which penetrates through the right end wall of the driven cavity and is positioned on the rotating shaft in the control cavity, a rotating shaft left end fixedly connected with a rotating gear engaged with the rotating gear, a rotating shaft right end fixedly connected with a rotating bevel gear, a control cavity rear end wall is rotatably connected with a lifting rack, a lifting rack rear end fixedly connected with a rotating bevel gear engaged with the rotating bevel gear, a rotating gear fixedly connected with the front end of the lifting rack, an upper end opening is arranged in the upper end wall of the control cavity and is communicated with a lifting cavity, an upper end arranged in the control cavity and penetrates through the upper end wall of the control cavity and is positioned in the The strip, lifting rack up end fixedly connected with lift chamber sliding connection's closing plate, be equipped with the connection in the lift chamber under the closing plate terminal surface with two sealing spring of lift chamber lower end wall, terminal surface fixedly connected with sliding connection in under the closing plate lift chamber right side end wall's sealed piece, be equipped with in the stirring chamber right-hand member wall the left end face with stirring chamber right-hand member wall parallel and level and right-hand member are located external pipeline wall, be equipped with in the pipeline wall the left end opening can with the pipeline of stirring chamber intercommunication and right-hand member opening and external intercommunication.
4. A mobile fertilizer spraying apparatus as defined in claim 2 wherein: the incomplete gear is an incomplete gear and the toothed part is a half.
5. A mobile fertilizer spraying apparatus as defined in claim 3 wherein: and the elastic force of the throwing spring is very large, so that the fertilizer in the throwing arc block can be thrown out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911193188.5A CN110741793A (en) | 2019-11-28 | 2019-11-28 | Portable fertilizer sprinkler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911193188.5A CN110741793A (en) | 2019-11-28 | 2019-11-28 | Portable fertilizer sprinkler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110741793A true CN110741793A (en) | 2020-02-04 |
Family
ID=69285045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911193188.5A Withdrawn CN110741793A (en) | 2019-11-28 | 2019-11-28 | Portable fertilizer sprinkler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110741793A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111357449A (en) * | 2020-04-26 | 2020-07-03 | 三门罗荣机械科技有限公司 | Quantitative alternate mixing fertilizer applicator |
| CN112586122A (en) * | 2021-01-14 | 2021-04-02 | 上海造麦实业有限公司 | Device for farmland fertilization |
-
2019
- 2019-11-28 CN CN201911193188.5A patent/CN110741793A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111357449A (en) * | 2020-04-26 | 2020-07-03 | 三门罗荣机械科技有限公司 | Quantitative alternate mixing fertilizer applicator |
| CN112586122A (en) * | 2021-01-14 | 2021-04-02 | 上海造麦实业有限公司 | Device for farmland fertilization |
| CN112586122B (en) * | 2021-01-14 | 2022-11-15 | 中农创达(北京)环保科技有限公司 | Device for farmland fertilization |
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Application publication date: 20200204 |