CN111418317A - Agricultural production interval fertilizer injection unit who facilitates use - Google Patents
Agricultural production interval fertilizer injection unit who facilitates use Download PDFInfo
- Publication number
- CN111418317A CN111418317A CN202010323971.5A CN202010323971A CN111418317A CN 111418317 A CN111418317 A CN 111418317A CN 202010323971 A CN202010323971 A CN 202010323971A CN 111418317 A CN111418317 A CN 111418317A
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- gear
- rotating shaft
- agricultural production
- production interval
- motor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
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- 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
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Fertilizing (AREA)
Abstract
The invention relates to the field of agriculture, in particular to a convenient-to-use agricultural production interval fertilizing device, which comprises a supporting plate, wherein a stirring cylinder is arranged in the middle of the upper side of the supporting plate, a moving plate is arranged on the upper side of the stirring cylinder, a stirring motor is arranged on the moving plate, a stirring shaft is arranged on the lower side of the stirring motor, stirring rods are arranged at the left end and the right end of the stirring shaft, a rack is arranged on the right side of the moving plate, a first gear is arranged in the middle of the front side of the rack, a first rotating shaft is arranged at the lower end of the first gear, a second gear is arranged at the lower end of the first rotating shaft, an external gear is meshed on the left side of the second gear, a third gear is meshed on the left side of the external gear, a third rotating shaft is arranged in the third gear, a fourth, the invention can effectively facilitate the equipment to carry out interval fertilization, thus facilitating the use of the equipment.
Description
Technical Field
The invention relates to the field of agriculture, in particular to a convenient-to-use agricultural production interval fertilizing device.
Background
Agriculture is an industry for obtaining products by artificial cultivation by utilizing growth and development rules of animals and plants. Agriculture belongs to the first industry, and the science for researching agriculture is agriculture. The agricultural working object is living animals and plants, and the obtained products are the animals and plants. Agriculture is a basic industry for supporting national economic construction and development, and people often need to fertilize seeds in the agricultural production process.
Although the currently published Chinese patent No. CN210247508U discloses a crop fertilizing device for agricultural production, the discharge of waste materials can be controlled by a control valve, but the control valve cannot be used for intermittent material exhaust, so that the device is inconvenient to use.
Disclosure of Invention
The invention aims to provide an agricultural production interval fertilizing device convenient to use, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a convenient agricultural production interval fertilizing device comprises a supporting plate, wherein a stirring cylinder is arranged in the middle of the upper side of the supporting plate, a movable plate is arranged on the upper side of the stirring cylinder, a charging opening is arranged at the left end of the movable plate, a stirring motor is arranged on the movable plate on the right side of the charging opening, the stirring motor is fixedly arranged in the middle of the movable plate, a stirring shaft is arranged on the lower side of the stirring motor, stirring rods are arranged at the left end and the right end of the stirring shaft, a rack is fixedly arranged at the rear end of the right side of the movable plate, a first gear is arranged in the middle of the front side of the rack, a first rotating shaft is arranged at the lower end of the first rotating shaft, a second gear is arranged at the lower end of the first rotating shaft, an outer gear is meshed with the left side of the second, install the fourth gear in the third pivot that is located the backup pad downside, the meshing of fourth gear right side has the fifth gear, and the fifth gear is connected with the backup pad through the fourth pivot, and the rotary disk is installed to fifth pivot downside, evenly is provided with a plurality of bin outlet on the rotary disk, and row's material pipe is installed to the bin outlet upside of right-hand member, arranges the material pipe and installs at the downside middle part of churn, and the junction installs connection bearing between churn and the backup pad.
As a preferred embodiment of the invention, supporting legs are fixedly arranged at four corners of the lower side of the supporting plate, and rollers are arranged at the lower sides of the supporting legs, so that the equipment can be moved conveniently.
As a preferred embodiment of the present invention, a connecting groove is formed in the middle of the left end of the supporting plate, a connecting post is arranged at the right end inside the connecting groove, a first connecting rod is installed at the left end of the connecting seat, and a spring is arranged on the first connecting rod inside the connecting groove, so that the acting force of the connecting device can be effectively buffered, and thus the device can be effectively protected.
As a preferred embodiment of the invention, the connecting seat is arranged on the left side of the first connecting rod on the left side of the supporting plate and is connected with the second connecting rod through the connecting shaft, and the mounting sleeve is arranged on the left side of the second connecting rod, so that the equipment and power equipment can be conveniently connected, and the equipment can be conveniently mounted and driven.
As a preferable embodiment of the invention, the top end in the mixing drum is provided with a scraping ring, so that the inside of the mixing drum can be scraped, and the waste of fertilizer can be reduced.
As a preferred embodiment of the invention, the left end of the scraping ring is provided with a limiting rod, so that the scraping ring can be effectively limited.
As a preferred embodiment of the invention, the right end of the scraping ring is in threaded connection with a threaded rod, a first motor is mounted on the lower side of the threaded rod, and the first motor is mounted on the lower side of the supporting plate, so that the scraping ring can be effectively determined to move up and down, and the use of equipment is facilitated.
In a preferred embodiment of the present invention, a sealing cap is connected to the upper side of the charging opening by a hinge, so that the sealing process of the apparatus can be ensured.
In a preferred embodiment of the present invention, the upper and lower ends of the first rotating shaft are connected to the mixing drum through fasteners, so that the first rotating shaft can be conveniently fixed.
In a preferred embodiment of the present invention, the right side of the first rotating shaft is connected to the second rotating shaft through a belt, the second motor is mounted on the lower side of the second rotating shaft, and the second motor is fixedly mounted on the right end of the upper side of the supporting plate, so that the first rotating shaft can be conveniently driven to rotate.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the second motor drives the second rotating shaft to rotate, the second rotating shaft drives the first rotating shaft to rotate through the belt, the first rotating shaft drives the first gear at the upper end to rotate, and the first gear is meshed with the rack, so that the movable plate is driven to move left and right, and the stirring device is driven to move left and right in the stirring process, so that the stirring efficiency of the equipment can be effectively improved; the first rotating shaft can drive the second gear to rotate, and the second gear can drive the outer gear to rotate, so that the rotary stirring treatment of the stirring cylinder can be realized, and the stirring efficiency of the equipment can be effectively improved; drive left third through the outer gear and connect the gear and rotate, through the gear drive between fourth gear and the fifth gear, and then can drive the rotary disk of bottom and rotate, the bin outlet on the rotary disk carries out the in-process that contacts with row material pipe like this, can realize arranging the row of equipment effectively, can realize arranging the timing of arranging the material pipe like this and arrange the material processing, can carry out targeted fertilization processing like this effectively to the use of equipment has been made things convenient for.
Drawings
Fig. 1 is a schematic structural diagram of an agricultural production interval fertilizing device convenient to use.
Fig. 2 is a schematic structural diagram of a front view of the agricultural production interval fertilizing device convenient to use.
Fig. 3 is a schematic three-dimensional structure diagram of a movable stirring device in the agricultural production interval fertilizing device convenient to use.
Fig. 4 is a schematic structural diagram of a rotary disc in the agricultural production interval fertilizing device convenient to use.
1-support plate, 2-support leg, 3-roller, 4-connecting groove, 5-connecting column, 6-first connecting rod, 7-spring, 8-connecting seat, 9-second connecting rod, 10-mounting sleeve, 11-stirring cylinder, 12-scraping ring, 13-limiting rod, 14-threaded rod, 15-first motor, 16-moving plate, 17-charging hole, 18-stirring motor, 19-stirring shaft, 20-stirring rod, 21-rack, 22-first gear, 23-first rotating shaft, 24-fixing piece, 25-second rotating shaft, 26-second motor, 27-second gear, 28-external gear, 29-third gear, 30-third rotating shaft, 31-fourth gear, 32-a fifth gear, 33-a fourth rotating shaft, 34-a rotating disc, 35-a discharge port and 36-a discharge pipe.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
Referring to fig. 1-4, in the embodiment of the invention, the agricultural production interval fertilizing device convenient to use comprises a supporting plate 1, supporting legs 2 are fixedly mounted at four corners of the lower side of the supporting plate 1, and idler wheels 3 are mounted at the lower sides of the supporting legs 2, so that the movement of equipment can be effectively facilitated, and the equipment can be conveniently fertilized.
1 upside middle part of backup pad is provided with churn 11, 11 inside tops of churn are provided with scraping ring 12, scraping ring 12 left end is provided with gag lever post 13, 12 right-hand member threaded connection of scraping ring has threaded rod 14, first motor 15 is installed to 14 downside of threaded rod, first motor 15 is installed at the downside of backup pad 1, it is rotatory through 15 drive threaded rod 14 of first motor, can drive scraping ring 12 like this and reciprocate, can make things convenient for people to clear up the inner wall of churn 11 effectively like this, the use of equipment has been made things convenient for.
The fertilizer mixer is characterized in that a movable plate 16 is arranged on the upper side of the mixing drum 11, a feed inlet 17 is arranged at the left end of the movable plate 16, a sealing cover is connected to the upper side of the feed inlet 17 through a hinge, the sealing of the fertilizer mixer can be ensured, a mixing motor 18 is arranged on the movable plate 16 on the right side of the feed inlet 17, the mixing motor 18 is fixedly arranged in the middle of the movable plate 16, a mixing shaft 19 is arranged at the lower side of the mixing motor 18, mixing rods 20 are arranged at the left end and the right end of the mixing shaft 19, a rack 21 is fixedly arranged at the rear end of the right side of the movable plate 16, the mixing shaft 19 and the mixing rods 20 are driven by the mixing motor 18 to perform rotary mixing treatment, so that the mixing treatment of fertilizer to be applied conveniently is facilitated, the use of the fertilizer mixer is facilitated, a first gear 22, first pivot 23 right side is connected with second pivot 25 through the belt, second motor 26 is installed to second pivot 25 downside, second motor 26 fixed mounting is at the upside right-hand member of backup pad 1, second motor 26 drive second pivot 25 rotates, second pivot 25 drives first pivot 23 through the belt and rotates, first pivot 23 will drive first gear 22 of upper end and rotate, because intermeshing between first gear 22 and the rack 21, will drive movable plate 16 and remove about like this, thereby it controls the processing to drive agitating unit and remove about the in-process of stirring, can improve equipment stirring efficiency effectively like this.
The lower end of the first rotating shaft 23 is provided with a second gear 27, the left side of the second gear 27 is engaged with an outer gear 28, the outer gear 28 is fixedly arranged at the outer side of the lower end of the mixing drum 11, the mixing drum 11 can be driven to rotate simultaneously during the mixing process of the equipment, so that the mixing efficiency of the equipment can be further improved, and the use of people is facilitated, the left side of the outer gear 28 is engaged with a third gear 29, a third rotating shaft 30 is arranged inside the third gear 29, the third rotating shaft 30 is arranged at the left end of the support plate 1, a fourth gear 31 is arranged on the third rotating shaft 30 positioned at the lower side of the support plate 1, a fifth gear 32 is engaged at the right side of the fourth gear 31, the fifth gear 32 is connected with the support plate 1 through a fourth rotating shaft 33, a rotating disc 34 is arranged at the lower side of the fifth rotating shaft 33, a plurality of discharge ports 35 are uniformly arranged on the rotating, the discharge pipe 36 is arranged in the middle of the lower side of the stirring drum 11, and can drive the rotating disc 34 to rotate at a constant speed through gear transmission, so that the time of the discharge opening 35 passing through the discharge pipe 36 is fixed, the interval discharge treatment of the equipment is realized, and the use of the equipment is facilitated.
According to the invention, the second motor 26 drives the second rotating shaft 25 to rotate, the second rotating shaft 25 drives the first rotating shaft 23 to rotate through the belt, the first rotating shaft 23 drives the first gear 22 at the upper end to rotate, the moving plate 16 is driven to move left and right due to the mutual engagement between the first gear 22 and the rack 21, so that the stirring device is driven to move left and right in the stirring process, the stirring efficiency of the equipment can be effectively improved, the first rotating shaft 23 drives the second gear 27 to rotate at the same time, the second gear 27 drives the outer gear 28 to rotate, the rotary stirring treatment of the stirring cylinder 11 can be realized, the stirring efficiency of the equipment can be effectively improved, the outer gear 28 drives the third connecting gear 29 at the left side to rotate, and through the gear transmission between the fourth gear 30 and the fifth gear 31, and then can drive the rotary disk 34 of bottom and rotate, the in-process that the bin outlet 35 on the rotary disk 34 contacted with row material pipe 36 like this can realize arranging of equipment effectively, can realize arranging the timing row material of material pipe and handle like this, has made things convenient for the fertilization processing of people to the field.
Example two
The difference from the first embodiment is that: 1 left end middle part of backup pad is provided with connecting groove 4, the inside right-hand member of connecting groove 4 is provided with spliced pole 5, head rod 6 is installed to 5 left ends of connecting seat, be provided with spring 7 on being located the head rod 6 of connecting groove 4 inside, be located 1 left head rod 6 left sides of backup pad and install connecting seat 8, connecting seat 8 is connected with second connecting rod 9 through the connecting axle, second connecting rod 9 left side is provided with the installing sleeve 10, can make things convenient for equipment and power machine to be connected effectively, can make things convenient for the use of equipment like this, and through be provided with spring 7 on connecting device, power machine is driving fertilizer injection unit's in-process like this, can carry out the cushioning effort effectively, can protect connecting device like this effectively.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more, and it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides an agricultural production interval fertilizer injection unit who facilitates use, includes backup pad (1), backup pad (1) upside middle part is provided with churn (11), churn (11) upside is provided with movable plate (16), and charge door (17) are installed to movable plate (16) left end, installs agitator motor (18) on movable plate (16) that is located charge door (17) right side, and agitator motor (18) fixed mounting is at the middle part of movable plate (16), and agitator shaft (19) are installed to agitator motor (18) downside, and agitator shaft (20) are installed to both ends about agitator shaft (19), movable plate (16) right side rear end fixed mounting has rack (21), and rack (21) front side mid-mounting has first gear (22), and first pivot (23) are installed to first gear (22) lower extreme, second gear (27) are installed to first pivot (23) lower extreme, the left side of the second gear (27) is engaged with an external gear (28), the external gear (28) is fixedly installed on the outer side of the lower end of the stirring cylinder (11), the left side of the external gear (28) is engaged with a third gear (29), a third rotating shaft (30) is installed inside the third gear (29), the third rotating shaft (30) is installed at the left end of the support plate (1), the stirring cylinder is characterized in that a fourth gear (31) is installed on the third rotating shaft (30) positioned on the lower side of the support plate (1), a fifth gear (32) is engaged with the right side of the fourth gear (31), the fifth gear (32) is connected with the support plate (1) through a fourth rotating shaft (33), a rotating disc (34) is installed on the lower side of the fifth rotating shaft (33), a plurality of discharge ports (35) are uniformly arranged on the rotating disc (34), a discharge pipe (36) is installed on the upper side of the discharge port (35) at the right end, and a connecting bearing is arranged at the connecting part between the stirring pipe (36) and the supporting plate 1.
2. The agricultural production interval fertilizing device convenient to use as claimed in claim 1, characterized in that four corners of the lower side of the supporting plate (1) are fixedly provided with supporting legs (2), and the lower sides of the supporting legs (2) are provided with rollers (3).
3. The agricultural production interval fertilizer apparatus convenient to use of claim 1 or 2, wherein the support plate (1) is provided with a connecting groove (4) at the middle of the left end, the right end inside the connecting groove (4) is provided with a connecting column (5), the left end of the connecting seat (5) is provided with a first connecting rod (6), and the first connecting rod (6) inside the connecting groove (4) is provided with a spring (7).
4. The agricultural production interval fertilizing device convenient to use as claimed in claim 3, characterized in that the connecting seat (8) is installed on the left side of the first connecting rod (6) on the left side of the supporting plate (1), the connecting seat (8) is connected with the second connecting rod (9) through the connecting shaft, and the mounting sleeve (10) is arranged on the left side of the second connecting rod (9).
5. The agricultural production interval fertilizing device convenient to use as claimed in claim 1, characterized in that the stirring cylinder (11) is provided with a scraping ring (12) at the top end inside.
6. The agricultural production interval fertilizing device convenient to use as claimed in claim 5, wherein the left end of the scraping ring (12) is provided with a limiting rod (13).
7. The agricultural production interval fertilizer apparatus convenient to use of claim 6, wherein the right end of the scraping ring (12) is connected with a threaded rod (14) in a threaded manner, a first motor (15) is installed on the lower side of the threaded rod (14), and the first motor (15) is installed on the lower side of the supporting plate (1).
8. The agricultural production interval fertilizing device convenient to use as claimed in claim 1, wherein the upper side of the feeding opening (17) is connected with a sealing cover through a hinge.
9. The agricultural production interval fertilizing device convenient to use as claimed in claim 1, characterized in that the upper and lower ends of the first rotating shaft (23) are connected with the mixing drum (11) through fixing members (24).
10. The agricultural production interval fertilizing device convenient to use as claimed in claim 1, wherein the right side of the first rotating shaft (23) is connected with the second rotating shaft (25) through a belt, the lower side of the second rotating shaft (25) is provided with a second motor (26), and the second motor (26) is fixedly arranged at the right end of the upper side of the supporting plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323971.5A CN111418317B (en) | 2020-04-22 | 2020-04-22 | Agricultural production interval fertilizer injection unit who facilitates use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323971.5A CN111418317B (en) | 2020-04-22 | 2020-04-22 | Agricultural production interval fertilizer injection unit who facilitates use |
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| CN111418317A true CN111418317A (en) | 2020-07-17 |
| CN111418317B CN111418317B (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010323971.5A Active CN111418317B (en) | 2020-04-22 | 2020-04-22 | Agricultural production interval fertilizer injection unit who facilitates use |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112042344A (en) * | 2020-09-04 | 2020-12-08 | 蒙远春 | Agricultural machine fertilizing mechanism and method capable of adjusting fertilizing speed |
| CN112093804A (en) * | 2020-09-21 | 2020-12-18 | 陶川 | Preparation process of calcium-based bentonite |
| CN113557830A (en) * | 2021-06-30 | 2021-10-29 | 马鞍山万森园林绿化工程有限公司 | Uniform fertilizing device for garden tree maintenance |
| CN114097382A (en) * | 2021-11-12 | 2022-03-01 | 盐城唯道农业机械有限公司 | Agricultural production is with fertilizer injection unit who conveniently stirs and clear up |
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| US4609151A (en) * | 1982-10-06 | 1986-09-02 | Crowley Thomas A | Material spreader having multiple compartments and mixer |
| CN104206087A (en) * | 2014-09-03 | 2014-12-17 | 安徽久力机械设备有限公司 | Fertilizer distributor |
| CN107432144A (en) * | 2017-08-14 | 2017-12-05 | 郑州秉同立智电子科技有限公司 | A kind of agricultural uses seeding and fertilizing all-in-one |
| CN208273566U (en) * | 2018-05-17 | 2018-12-25 | 陈周麟 | A kind of agricultural fertilizer apparatus |
| CN208509569U (en) * | 2018-08-02 | 2019-02-19 | 郑立文 | A kind of agricultural seed sowing mechanism |
| CN209105626U (en) * | 2018-10-15 | 2019-07-16 | 湖南德农牧业集团有限公司 | A kind of organic fertilizer fertilizer applicator |
| CN209151546U (en) * | 2018-10-24 | 2019-07-26 | 山东交通职业学院 | A kind of seeding apparatus that can be precisely controlled application rate and dose |
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| US4609151A (en) * | 1982-10-06 | 1986-09-02 | Crowley Thomas A | Material spreader having multiple compartments and mixer |
| CN104206087A (en) * | 2014-09-03 | 2014-12-17 | 安徽久力机械设备有限公司 | Fertilizer distributor |
| CN107432144A (en) * | 2017-08-14 | 2017-12-05 | 郑州秉同立智电子科技有限公司 | A kind of agricultural uses seeding and fertilizing all-in-one |
| CN208273566U (en) * | 2018-05-17 | 2018-12-25 | 陈周麟 | A kind of agricultural fertilizer apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112042344A (en) * | 2020-09-04 | 2020-12-08 | 蒙远春 | Agricultural machine fertilizing mechanism and method capable of adjusting fertilizing speed |
| CN112093804A (en) * | 2020-09-21 | 2020-12-18 | 陶川 | Preparation process of calcium-based bentonite |
| CN113557830A (en) * | 2021-06-30 | 2021-10-29 | 马鞍山万森园林绿化工程有限公司 | Uniform fertilizing device for garden tree maintenance |
| CN114097382A (en) * | 2021-11-12 | 2022-03-01 | 盐城唯道农业机械有限公司 | Agricultural production is with fertilizer injection unit who conveniently stirs and clear up |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111418317B (en) | 2021-12-03 |
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Effective date of registration: 20220525 Address after: 114200 San Da Bao Cun, Dongsi administrative district, Haicheng City, Anshan City, Liaoning Province Patentee after: LIAONING HENGRUN AGRICULTURAL CO.,LTD. Address before: 730700 room 65, No. 10, North Street, Huishi Town, Huining County, Baiyin City, Gansu Province Patentee before: Song Yali |