CN110249770B - Saline and alkaline land improvement multilayer disposable fertilizer injection unit - Google Patents
Saline and alkaline land improvement multilayer disposable fertilizer injection unit Download PDFInfo
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- CN110249770B CN110249770B CN201910516249.0A CN201910516249A CN110249770B CN 110249770 B CN110249770 B CN 110249770B CN 201910516249 A CN201910516249 A CN 201910516249A CN 110249770 B CN110249770 B CN 110249770B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/18—Fertiliser distributors with endless chains, i.e. side transporting elements, e.g. auger or screw conveyors, swash plates
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C19/00—Arrangements for driving working parts of fertilisers or seeders
- A01C19/04—Arrangements for driving working parts of fertilisers or seeders by a ground-engaging wheel
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Abstract
The utility model provides a saline and alkaline land improvement multilayer disposable fertilizer injection unit, the power distribution box comprises a box body, the top side opening of box, one row of several hole that leaks is seted up to the centre of box bottom side, the bottom side in hole that leaks is the upper end of the coaxial standpipe of fixed connection respectively, the first through-hole of bilateral symmetry is seted up with the right side in the left side of box, the same cross axle of bearing installation in the first through-hole, the outside difference fixed mounting walking wheel that the both ends of cross axle are located the box, the rear side fixed mounting bilateral symmetry's of box supporting wheel, be equipped with coaxial vertical axis in the standpipe respectively, the upper end of vertical axis passes the coaxial first helical gear of corresponding hole that leaks respectively and is located the box internal fixed mounting, the periphery of cross axle corresponds first helical gear difference fixed mounting second helical gear. The invention has simple structure and ingenious conception, solves the technical problem that the existing mechanical equipment can not carry out multi-layer fertilization at one time, is beneficial to the improvement of saline-alkali soil, enables the fertilizer to be supplied continuously and is beneficial to the continuous absorption of plants.
Description
Technical Field
The invention belongs to the field of agricultural mechanical devices, and particularly relates to a multilayer disposable fertilizing device for saline-alkali soil improvement.
Background
The saline-alkali soil has the advantages of low organic matter content, low soil fertility, poor physical and chemical properties, more anions and cations harmful to crops, and difficult seedling promotion of the crops; the fertilizing principle of the saline-alkali soil is mainly that organic fertilizer and high-efficiency compound fertilizer are applied, the use of low-concentration fertilizer is controlled, the organic fertilizer contains a large amount of organic matters, the organic fertilizer has a buffering effect on harmful negative ions and harmful positive ions in the soil, and rooting and seedling promotion are facilitated; however, for perennial growing plants, the deep ploughing and fertilizing can only be carried out on the planting field before planting, the deep ploughing cannot be carried out for protecting the root system of the plants after planting, the operation difficulty of the deep ploughing is higher, only the surface fertilization can be carried out, the fertilization and the improvement of soil under the surface are not facilitated, and the absorption of the root system of the plants is inconvenient; before the plant was planted, with the pre-buried earth's surface shallow layer of a large amount of fertilizers, fertilizer volatilizees easily, can't last for a long time supply fertile, with the pre-buried earth's surface deep layer of a large amount of fertilizers, is unfavorable for the absorption of plant earlier stage, leads to supplying fertile untimely, and port blocking under the sticky soil made the fertilizer pipe easily simultaneously influences the fertilization success rate, can't satisfy actual demand, so I have invented a saline and alkaline land improvement multilayer disposable fertilizer injection unit.
Disclosure of Invention
The invention provides a multilayer disposable fertilizing device for saline-alkali soil improvement, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a multilayer disposable fertilizer device for improving saline-alkali soil comprises a box body, wherein the top side of the box body is provided with an opening, the middle of the bottom side of the box body is provided with a row of a plurality of material leaking holes, the bottom sides of the material leaking holes are respectively and fixedly connected with the upper ends of coaxial vertical pipes, the left side and the right side of the box body are provided with first through holes which are bilaterally symmetrical, the inner parts of the first through holes are provided with the same transverse shaft in a bearing way, the two ends of the transverse shaft are respectively and fixedly provided with walking wheels outside the box body, the rear side of the box body is fixedly provided with bilaterally symmetrical supporting wheels, coaxial vertical shafts are respectively arranged in the vertical pipes, the upper ends of the vertical shafts respectively penetrate through the corresponding material leaking holes and are positioned in the box body and are fixedly provided with the coaxial first helical gears, the peripheries of the transverse shafts are respectively and fixedly provided with second helical gears corresponding to the first, a plurality of second through holes which are bilaterally symmetrical are respectively arranged on the periphery of the vertical pipe, inclined pipes are respectively and fixedly installed in the second through holes, coaxial inclined shafts are respectively arranged in the inclined pipes, the inclined shafts are respectively and fixedly connected with the corresponding inclined pipes through second shaft seats, coaxial first helical blades are respectively and fixedly installed on the periphery of the inclined shafts, the rotating directions of the first helical blades on the left side and the right side of the same vertical pipe are opposite, third helical gears are respectively and fixedly installed at the inner ends of the inclined shafts, fourth helical gears are respectively and fixedly installed on the periphery of the vertical shaft corresponding to the third helical gears, the fourth helical gears are respectively collinear with the central lines of the corresponding vertical shafts, the fourth helical gears are respectively engaged with the corresponding third helical gears, coaxial second helical blades are respectively and fixedly installed at the lower ends of the periphery of the vertical shafts, the rear side of the vertical pipe is fixedly connected with the front side of the first angle steel, the top side of the first angle steel is respectively and fixedly connected with the bottom side of the, the inner of second angle steel respectively with the first angle steel fixed connection that corresponds, the lower extreme of first angle steel and the outer end of second angle steel are fixed ann's subsoiler respectively, the middle fixed connection of box rear side can with the front side of the connecting plate that the tractor articulates.
According to the multilayer disposable fertilizer device for saline-alkali soil improvement, the first protective shell is arranged on the outer side of the first bevel gear and the second bevel gear which are meshed with the first bevel gear, and the preformed holes of the first protective shell are respectively connected with the peripheral bearings of the corresponding transverse shaft and the vertical shaft.
According to the multilayer disposable fertilizer device for saline-alkali soil improvement, a second protective shell is arranged on the outer side of the third bevel gear and the fourth bevel gear which are meshed with each other, and the preformed holes of the second protective shell are respectively connected with the peripheral bearings of the corresponding vertical shaft and the corresponding bevel shaft.
According to the multilayer disposable fertilizer device for saline-alkali soil improvement, the plurality of first stirring blades are fixedly arranged on the periphery of the transverse shaft.
According to the multilayer disposable fertilizer injection unit for saline-alkali soil improvement, the second stirring blade is fixedly installed at the upper end of the periphery of the vertical shaft.
According to the saline-alkali soil improvement multilayer disposable fertilizing device, the bottom side of the box body is fixedly connected with the top side of the bottom plate, the left side and the right side of the bottom plate are respectively and fixedly connected with the corresponding vertical pipes and the inner sides of the first angle steels, and the rear side of the top side of the bottom plate is fixedly connected with the bottom side of the connecting plate.
The invention has the advantages that: the multi-layer fertilizing device is simple in structure and ingenious in conception, solves the technical problem that the existing mechanical equipment cannot perform multi-layer fertilization once, is beneficial to improvement of saline-alkali soil, enables fertilizers to be supplied continuously, is beneficial to continuous absorption of plants, can effectively prevent the lower end of the fertilizing pipe from being blocked by clay by feeding the fertilizers in a screw conveyer feeding rod mode, can meet actual requirements, and is suitable for popularization. When the device is used, firstly, the vertical pipes are dug corresponding to the proper ground position, then the vertical pipes are respectively inserted into the corresponding ground dug pits, the bottom sides of the supporting wheels and the travelling wheels are respectively contacted and matched with the ground, then the mounting holes of the connecting plate are hung on the tractor, the fertilizer is poured into the box body, the fertilizer in the box body enters the vertical pipes through the material leaking holes, one part of the fertilizer in the vertical pipes leaks out through the lower ends of the vertical pipes, one part of the fertilizer enters the inclined pipes through the corresponding second through holes and the inner ends of the inclined pipes, and finally leaks out through the outer ends of the inclined pipes, the tractor pulls the device to move backwards through the connecting plate, the first angle steel and the subsoiler at the lower side are favorable for breaking the rear sides of the vertical pipes and opening the vertical grooves, the second angle steel and the subsoilers at the two sides are favorable for breaking the rear sides of the inclined pipes and opening the splayed grooves, meanwhile, the travelling wheels roll on the ground, the travelling wheels drive the transverse shafts to rotate, the transverse shafts drive the vertical shafts to rotate through the second helical gears and the first helical gears, the vertical shafts respectively drive the corresponding second helical blades and fourth helical gears to rotate, the second helical blades can discharge the fertilizer in the vertical pipes downwards, the lower ends of the vertical pipes are effectively prevented from being blocked by clay adhesion, meanwhile, the fourth helical gears drive the corresponding oblique shafts to rotate through the third helical gears, the oblique shafts drive the corresponding first helical blades to rotate, the fertilizer entering the oblique pipes can be discharged through the outer ends by the first helical blades, the outer ends of the oblique pipes are effectively prevented from being blocked by clay adhesion, and the fertilizer is sent out by the first helical blades and the second helical blades, so that the fertilizer is effectively prevented from being accumulated in one position all the time when a tractor stalls, and the fertilizer discharging speed is changed when the tractor pulls the device, the faster the tractor moves, the faster the discharge speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of a cross-sectional view taken along line A-A of FIG. 1; FIG. 3 is a top view of FIG. 1; FIG. 4 is an enlarged view of section I of FIG. 1; FIG. 5 is an enlarged view of a portion II of FIG. 1; fig. 6 is an enlarged view of the view from direction B of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A multilayer disposable fertilizer device for improving saline-alkali soil comprises a box body 1, wherein the top side of the box body 1 is provided with an opening, the middle of the bottom side of the box body 1 is provided with a row of a plurality of material leaking holes 2, the bottom sides of the material leaking holes 2 are respectively and fixedly connected with the upper ends of coaxial vertical pipes 3, the left side and the right side of the box body 1 are provided with first through holes 4 which are bilaterally symmetrical, the same horizontal shaft 5 is arranged in the first through holes 4 through bearings, the two ends of the horizontal shaft 5 are respectively and fixedly arranged at the outer part of the box body 1 with walking wheels 6, the rear side of the box body 1 is fixedly provided with bilaterally symmetrical supporting wheels 7, the vertical pipes 3 are respectively provided with coaxial vertical shafts 8, the upper ends of the vertical shafts 8 respectively penetrate through the corresponding material leaking holes 2 and are respectively and fixedly arranged in the box body 1 with coaxial first helical gears 9, the, the second bevel gears 10 are respectively engaged with the corresponding first bevel gears 9, the vertical shafts 8 are respectively fixedly connected with the corresponding vertical pipes 3 through first shaft seats 11, the periphery of the vertical pipes 3 is respectively provided with a plurality of second through holes 12 which are bilaterally symmetrical, inclined pipes 13 are respectively fixedly arranged in the second through holes 12, coaxial inclined shafts 14 are respectively arranged in the inclined pipes 13, the inclined shafts 14 are respectively fixedly connected with the corresponding inclined pipes 13 through second shaft seats 15, the periphery of the inclined shafts 14 is respectively fixedly provided with coaxial first helical blades 16, the rotating directions of the first helical blades 16 on the left side and the right side of the same vertical pipe 3 are opposite, the inner ends of the inclined shafts 14 are respectively fixedly provided with third bevel gears 17, the periphery of the vertical shaft 8 is respectively fixedly provided with fourth bevel gears 18 corresponding to the third bevel gears 17, the fourth bevel gears 18 are respectively collinear with the central lines of the corresponding vertical shafts 8, the fourth bevel gears 18 are respectively engaged with the corresponding third bevel gears 17, the lower extreme of 8 peripheries of vertical axis is coaxial second helical blade 19 of fixed mounting respectively, the front side of the first angle steel 20 of rear side fixed connection of standpipe 3, the top side of first angle steel 20 respectively with the bottom side fixed connection of box 1, the front side of the second angle steel 21 of rear side fixed connection respectively of pipe chute 13, the inner of second angle steel 21 respectively with the first angle steel 20 fixed connection that corresponds, the lower extreme of first angle steel 20 and the outer end of second angle steel 21 are fixed ann's subsoiler 22 respectively, the middle fixed connection of box 1 rear side can with the front side of the connecting plate 23 that the tractor articulates. The multi-layer fertilizing device is simple in structure and ingenious in conception, solves the technical problem that the existing mechanical equipment cannot perform multi-layer fertilization once, is beneficial to improvement of saline-alkali soil, enables fertilizers to be supplied continuously, is beneficial to continuous absorption of plants, can effectively prevent the lower end of the fertilizing pipe from being blocked by clay by feeding the fertilizers in a screw conveyer feeding rod mode, can meet actual requirements, and is suitable for popularization. When the device is used, firstly, a pit is dug corresponding to the vertical pipe 3 at a proper ground position, then the vertical pipe 3 is respectively inserted into the corresponding ground dug pit, the bottom sides of the supporting wheels 7 and the travelling wheels 6 are respectively contacted and matched with the ground, then the mounting hole of the connecting plate 23 is hooked with a tractor, fertilizer is poured into the box body 1, the fertilizer in the box body 1 enters the vertical pipe 3 through the material leakage hole 2, part of the fertilizer in the vertical pipe 3 leaks out through the lower end of the vertical pipe, part of the fertilizer enters the inclined pipe 13 through the corresponding second through hole 12 and the inner end of the inclined pipe 13, and finally leaks out through the outer end of the inclined pipe 13, the tractor pulls the device to move backwards through the connecting plate 23, the first angle steel 20 and the deep scarification shovel 22 at the lower side are beneficial to digging vertical grooves on the rear side of the vertical pipe 3, the second angle steel 21 and the deep scarification shovels 22 at the two sides are beneficial to digging grooves on the rear side of the inclined pipe 13, the vertical grooves are connected, meanwhile, the traveling wheels 6 roll on the ground, the traveling wheels 6 drive the transverse shafts 5 to rotate, the transverse shafts 5 drive the vertical shafts 8 to rotate through the second bevel gears 10 and the first bevel gears 9, the vertical shafts 8 respectively drive the corresponding second helical blades 19 and the corresponding fourth bevel gears 18 to rotate, the fertilizer in the vertical pipes 3 can be discharged downwards through the second helical blades 19, the lower ends of the vertical pipes 3 are effectively prevented from being blocked by clay adhesion, meanwhile, the fourth bevel gears 4 drive the corresponding oblique shafts 14 to rotate through the third bevel gears 17, the oblique shafts 14 drive the corresponding first helical blades 16 to rotate, the fertilizer entering the oblique pipes 13 can be discharged through the outer ends of the first helical blades 16, the blockage of the outer ends of the oblique pipes 13 by clay adhesion is effectively avoided, and the fertilizer is sent out through the first helical blades 16 and the second helical blades 19, so that the fertilizer can be effectively prevented from being discharged and accumulated in one place when the tractor stalls, simultaneously when the speed that this device was pulled to the tractor changes, the speed of fertilizer ejection of compact thereupon changes, and the tractor moving speed is faster, and ejection of compact speed is faster.
Specifically, as shown in the drawing, a first protective casing 24 is provided on the outer side of the first helical gear 9 and the second helical gear 10 that mesh with each other, and the prepared holes of the first protective casing 24 are connected to the outer peripheral bearings of the corresponding horizontal shaft 5 and vertical shaft 8, respectively. The first protection shell 24 can prevent fertilizer from being clamped into the meshing position of the first helical gear 9 and the second helical gear 10, and ensure that the first helical gear 9 and the second helical gear 10 are normally meshed and matched.
Specifically, as shown in the drawing, a second protective housing 25 is disposed on the outer side of the third helical gear 17 and the fourth helical gear 18 engaged with each other, and the preformed holes of the second protective housing 25 are respectively connected to the outer peripheral bearings of the corresponding vertical shaft 8 and the corresponding helical shaft 13. The second protective shell 25 can prevent fertilizer from being clamped into the meshing position of the third helical gear 17 and the fourth helical gear 18, and guarantee the normal meshing fit of the third helical gear 17 and the fourth helical gear 18.
Further, as shown in the figure, a plurality of first stirring vanes 26 are fixedly installed on the outer periphery of the transverse shaft 5 in the embodiment. First stirring leaf 26 can stir about the fertilizer of box 1, avoids fertilizer to pile up to glue even.
Further, as shown in the figure, the second stirring vane 27 is fixedly installed at the upper end of the outer periphery of the vertical shaft 8 according to the embodiment. The second stirring leaf 27 can control the stirring to the fertilizer in the box 1, makes the interior fertilizer flash mixed stirring of box 1, further increases stirring effect.
Furthermore, as shown in the drawings, the bottom side of the box body 1 according to the embodiment is fixedly connected to the top side of the bottom plate 28, the left and right sides of the bottom plate 28 are fixedly connected to the inner sides of the corresponding vertical pipe 3 and the first angle bar 20, respectively, and the rear side of the top side of the bottom plate 28 is fixedly connected to the bottom side of the connecting plate 23. The structural strength of the device can be increased, and the box body 1 is prevented from being damaged by the connecting plate 23.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a saline and alkaline land improvement multilayer is fertilizer injection unit once only which characterized in that: comprises a box body (1), the top side of the box body (1) is provided with an opening, the middle of the bottom side of the box body (1) is provided with a row of a plurality of material leaking holes (2), the bottom sides of the material leaking holes (2) are respectively and fixedly connected with the upper ends of coaxial vertical pipes (3), the left side and the right side of the box body (1) are provided with first through holes (4) which are bilaterally symmetrical, the inner bearings of the first through holes (4) are provided with the same transverse shaft (5), the two ends of the transverse shaft (5) are positioned outside the box body (1) and are respectively and fixedly provided with walking wheels (6), the rear side of the box body (1) is fixedly provided with bilaterally symmetrical supporting wheels (7), the vertical pipes (3) are respectively provided with coaxial vertical shafts (8), the upper ends of the vertical shafts (8) respectively penetrate through the corresponding material leaking holes (2) and are positioned in the box body (1) and are fixedly provided with coaxial first helical, the second helical gears (10) are respectively collinear with the central line of the transverse shaft (5), the second helical gears (10) are respectively meshed with the corresponding first helical gears (9), the vertical shaft (8) and the corresponding vertical pipe (3) are respectively fixedly connected through a first shaft seat (11), the periphery of the vertical pipe (3) is respectively provided with a plurality of second through holes (12) which are bilaterally symmetrical, inclined pipes (13) are respectively fixedly installed in the second through holes (12), coaxial inclined shafts (14) are respectively arranged in the inclined pipes (13), the inclined shafts (14) are respectively fixedly connected with the corresponding inclined pipes (13) through second shaft seats (15), the periphery of each inclined shaft (14) is respectively fixedly provided with a coaxial first helical blade (16), the rotating directions of the first helical blades (16) on the left side and the right side of the same vertical pipe (3) are opposite, the inner ends of the inclined shafts (14) are respectively fixedly provided with third helical gears (17), the periphery of the vertical shaft (8) is respectively fixedly provided with fourth helical gears (18) corresponding to the third helical gears (17), the fourth bevel gears (18) are respectively collinear with the central lines of the corresponding vertical shafts (8), the fourth bevel gears (18) are respectively meshed with the corresponding third bevel gears (17), the lower ends of the peripheries of the vertical shafts (8) are respectively and fixedly provided with coaxial second helical blades (19), the rear sides of the vertical pipes (3) are fixedly connected with the front sides of first angle steel (20), the top sides of the first angle steel (20) are respectively and fixedly connected with the bottom sides of the box bodies (1), the rear sides of the inclined pipes (13) are respectively and fixedly connected with the front sides of second angle steel (21), the inner ends of the second angle steel (21) are respectively and fixedly connected with the corresponding first angle steel (20), the lower ends of the first angle steel (20) and the outer ends of the second angle steel (21) are respectively and fixedly provided with a deep scarification shovel (22), and the middle of the rear sides of the box bodies (1) are fixedly connected with the front sides of connecting plates (23) of tractors in a hanging mode.
2. The multilayer disposable fertilizer device for saline-alkali soil improvement according to claim 1, characterized in that: and a first protective shell (24) is arranged on the outer side of the first bevel gear (9) and the second bevel gear (10) which are meshed with each other, and a reserved hole of the first protective shell (24) is respectively connected with the peripheral bearings of the corresponding transverse shaft (5) and the vertical shaft (8).
3. The multilayer disposable fertilizer device for saline-alkali soil improvement according to claim 1, characterized in that: and a second protective shell (25) is arranged on the outer side of the third bevel gear (17) and the fourth bevel gear (18) which are meshed with each other, and preformed holes of the second protective shell (25) are respectively connected with peripheral bearings of the corresponding vertical shaft (8) and the corresponding bevel shaft (13).
4. The multilayer disposable fertilizer device for saline-alkali soil improvement according to claim 1, characterized in that: a plurality of first stirring blades (26) are fixedly arranged on the periphery of the transverse shaft (5).
5. The multilayer disposable fertilizer device for saline-alkali soil improvement according to claim 1, characterized in that: and a second stirring blade (27) is fixedly arranged at the upper end of the periphery of the vertical shaft (8).
6. The multilayer disposable fertilizer device for saline-alkali soil improvement according to claim 1, characterized in that: the bottom side of the box body (1) is fixedly connected with the top side of the bottom plate (28), the left side and the right side of the bottom plate (28) are respectively and fixedly connected with the corresponding vertical pipes (3) and the inner sides of the first angle steels (20), and the rear side of the top side of the bottom plate (28) is fixedly connected with the bottom side of the connecting plate (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910516249.0A CN110249770B (en) | 2019-06-14 | 2019-06-14 | Saline and alkaline land improvement multilayer disposable fertilizer injection unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910516249.0A CN110249770B (en) | 2019-06-14 | 2019-06-14 | Saline and alkaline land improvement multilayer disposable fertilizer injection unit |
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| CN110249770A CN110249770A (en) | 2019-09-20 |
| CN110249770B true CN110249770B (en) | 2021-06-08 |
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| CN201910516249.0A Active CN110249770B (en) | 2019-06-14 | 2019-06-14 | Saline and alkaline land improvement multilayer disposable fertilizer injection unit |
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| CN112602428B (en) * | 2020-12-27 | 2022-05-20 | 塔里木大学 | Cotton planting is with quantitative fertilizer injection unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042273U (en) * | 1988-12-06 | 1989-08-09 | 镇江市农业机械化研究所 | Horizontal-vertical agitator fertilizer apparatus |
| CN2207691Y (en) * | 1993-05-07 | 1995-09-20 | 赵天明 | Multi-purpose fertilising machine |
| WO2012121576A2 (en) * | 2011-03-10 | 2012-09-13 | 지금강 주식회사 | Multi-functional complex direct seeder having interlockingly adjustable left and right horizontality and front and rear heights |
| CN103299746A (en) * | 2013-06-27 | 2013-09-18 | 中国农业大学 | Novel driving drum anti-blocking device of no-tillage sower |
| CN107148820A (en) * | 2017-06-27 | 2017-09-12 | 农业部南京农业机械化研究所 | One kind is loosened the soil deep-fertilising device |
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