CN108551817A - A kind of corn drill - Google Patents

A kind of corn drill Download PDF

Info

Publication number
CN108551817A
CN108551817A CN201810422780.7A CN201810422780A CN108551817A CN 108551817 A CN108551817 A CN 108551817A CN 201810422780 A CN201810422780 A CN 201810422780A CN 108551817 A CN108551817 A CN 108551817A
Authority
CN
China
Prior art keywords
cavity
cylinder
baffle
car body
runner
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.)
Granted
Application number
CN201810422780.7A
Other languages
Chinese (zh)
Other versions
CN108551817B (en
Inventor
杨今胜
兰进好
耿磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Denghai Seed Industry Co Ltd
DENGHAI SEEDS PRODN Co Ltd SHANDONG PROV
Original Assignee
Qingdao Denghai Seed Industry Co Ltd
DENGHAI SEEDS PRODN Co Ltd SHANDONG PROV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Denghai Seed Industry Co Ltd, DENGHAI SEEDS PRODN Co Ltd SHANDONG PROV filed Critical Qingdao Denghai Seed Industry Co Ltd
Priority to CN201810422780.7A priority Critical patent/CN108551817B/en
Publication of CN108551817A publication Critical patent/CN108551817A/en
Application granted granted Critical
Publication of CN108551817B publication Critical patent/CN108551817B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/20Parts of seeders for conducting and depositing seed
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C7/00Sowing
    • A01C7/20Parts of seeders for conducting and depositing seed
    • A01C7/206Seed pipes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)

Abstract

The invention discloses a kind of corn drills, including car body, first runner, second runner, notch, shaft, chain, cylinder, hopper, funnel, sowing pipe, bristle, the first cavity of several annular arrangements is offered on the cylinder of cylinder, partition board is also respectively connected in the both ends of cylinder, cylinder both ends also offer the second cavity of several annular arrangements respectively, first cavity and the second cavity are separated by partition board, activity is inserted with bolt on partition board, the first bottom plate is fixedly connected on the inside of bolt, first bottom plate is located in the second cavity, bolt is also arranged with nut, first baffle is fixedly connected on the outside of bolt, first baffle is located at the first cavity inside, the both sides of first baffle have been respectively fixedly connected with box body, tray interior is inserted with second baffle, spring is connected on the inside of second baffle.The present invention can improve the deficiencies in the prior art, have application rate accurately adjustable effect.

Description

A kind of corn drill
Technical field
The present invention relates to a kind of agricultural equipment, especially a kind of corn drill.
Background technology
Continuously improving and promoting with farm machinery technology, automated machine or semi-automatic machinery gradually replace Artificial seeding's mode originally, at present the millet sowing of large area all use Special sowing machinery substantially, but on some mountain area slopes Arable land, large-scale implanted device cannot be introduced into, and the cost of large scale equipment is generally higher, to use artificial seeding, labor Fatigue resistance is big, efficiency is low, and it is uneven to be easy to cause sowing spacing in the rows.203646032 U of Chinese invention patent CN disclose one kind Corn drill.The corn drill of this structure can substitute original artificial seeding's mode, realize in trolley pushing course Automatically sowing, but this seeding method can not be adjusted application rate, limit its scope of application.
Invention content
The technical problem to be solved in the present invention is to provide a kind of corn drills, can solve the deficiencies in the prior art, have and broadcast The accurate adjustable effect of kind amount.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
A kind of corn drill, including car body are connected with the first runner below car body by first support, described first turn It is also associated with the second runner, the first runner and the second runner coaxial line on wheel, notch is further opened on car body, passes through on car body Two holders are connected with shaft, and shaft is interconnected with the second runner by chain, and fixing sleeve is equipped with cylinder in shaft, and cylinder is located at Inside notch, hopper is also associated on car body, hopper is located at the top of notch, funnel is also associated with below car body, funnel Lower section perforation is connected with sowing pipe, and funnel is located at the lower section of notch, and the outside of cylinder is uniformly connected with bristle, on the cylinder of cylinder The first cavity of several annular arrangements is offered, partition board is also respectively connected in the both ends of cylinder, and cylinder both ends also open up respectively There is the second cavity of several annular arrangements, the first cavity and the second cavity to separate by partition board, on partition board activity be inserted with spiral shell Bolt is fixedly connected with the first bottom plate on the inside of bolt, and the first bottom plate is located in the second cavity, and bolt is also arranged with nut, bolt Outside be fixedly connected with first baffle, first baffle is located at the first cavity inside, and the both sides of first baffle are respectively fixedly connected with There are box body, tray interior to be inserted with second baffle, spring is connected on the inside of second baffle, the outside of second baffle is empty with first The outer wall of chamber contacts with each other.
Preferably, the side of the car body is also associated with handrail.
Preferably, being also associated with plough below the funnel, plough is located at the front side of sowing pipe.
Preferably, the bottom of the sowing pipe is connected with turntable, the bottom of turntable is located at the outside of sowing pipe, sowing pipe It is internally provided with arc-shaped slot, edge and the arc-shaped slot sliding of turntable are clamped, and the edge of turntable is provided with several holding tanks, It accommodates groove bottom and is provided with shrapnel.
Preferably, the side wall of the sowing pipe is fixed with elastic plectrum, holding tank is managed with the rotation of turntable from sowing It is in contact with elastic plectrum after back-out.
It is using advantageous effect caused by above-mentioned technical proposal:The present invention car body, for connect the first runner and Hopper, hopper inside is for holding maize seed seed, when planting seeds, by manually pushing car body, drives the rotation of the first runner, in turn By the second runner and chain being connect with the first runner, shaft rotation is driven, and then drive barrel body rotation, cylinder is located at car body On indentation, there, for separate hopper and lower section funnel and sowing manage, when car body is static, the partition effect of cylinder makes hopper Internal maize seed seed is not fallen out, and when cylinder is rotated by the first driven by rotating wheel, the top half of cylinder turns to material When on bucket, corn can enter and be filled into the first cavity of cylinder, and with barrel body rotation, the first cavity being filled can be turned It moves at the funnel below car body, enters funnel under the effect of gravity and sowing is managed, to be seeded on soil, this mode makes It is directly proportional at a distance from car body advance to obtain application rate, the volume for the first cavity that fixation of seeding rate is, application rate is more accurate, into One step, can be with the outreach of adjustment bolt, and locked by nut, adjust the first baffle of the first cavity inside Position, when first baffle is moved forward and backward, spring drives the second baffle of tray interior to exert oneself outward, can be always maintained at second gear The state that plate and the first cavity outer wall contact with each other, to keep the first cavity volume on the outside of first baffle adjustable, and then can be right It is adjusted every time into the corn seed amount of the first cavity, achievees the purpose that application rate can be adjusted, the second cavity is for holding Receive the inboard portion of bolt, the first bottom plate prevents bolt from deviating from, and bristle is located at the outside of cylinder, plays further partition effect Fruit prevents seed grain from being fallen in the gap between notch and cylinder.
Handrail is for facilitating personnel to push car body, and plough is for prior to seeding ditching to soil.
After seed grain enters sowing pipe, since moving irregularly for seed grain is easy to cause seed grain clamping stagnation in sowing pipe End.For this problem, turntable is connected in sowing pipe of the invention, turntable bottom is in contact with soil, with car body The rotation of advance turntable, seed grain falls into the holding tank of disk edge, and as turntable rotationally disengages sowing pipe, falls into soil In.Extra seed grain releases holding tank in turntable rotary course by arc-shaped slot above holding tank, falls into the receiving at rear In slot, to realize the uniform release of seed grain.Elastic plectrum is used to carry out the sundries and soil that adhere in holding tank clear Reason ensures receiving effect of the holding tank to seed grain.
Description of the drawings
Fig. 1 is the structure chart of a specific implementation mode of the invention.
Fig. 2 is the structure chart of a specific implementation mode middle cylinder body and the first cavity of the invention.
Fig. 3 is the structure chart of a specific implementation mode middle cylinder body and the second cavity of the invention.
Fig. 4 is the partial enlargement structure chart of the positions Fig. 2 a in a specific implementation mode of the invention.
Fig. 5 is the structure chart of a specific implementation mode turntable of the invention.
In figure:1, car body;2, first support;3, the first runner;4, the second runner;5, handrail;6, hopper;7, funnel;8、 Sowing pipe;9, plough;10, cylinder;11, shaft;12, chain;13, the first cavity;14, the first bottom plate;15, bolt;16, spiral shell It is female;17, partition board;18, first baffle;19, box body;20, spring;21, second baffle;22, the second cavity;23, bristle;24, it lacks Mouthful;25, second support;26, the second bottom plate;27, third baffle;28, loop bar;29, turntable;30, arc-shaped slot;31, holding tank; 32, shrapnel;33, elastic plectrum.
Specific implementation mode
The standardized element used in the present invention can commercially, and shaped piece is according to specification and attached drawing Record can carry out customized, and the specific connection type of each part is all made of bolt ripe in the prior art, rivet, weldering The conventional means such as connect, paste, this will not be detailed here.
Referring to Fig.1-5, a specific implementation mode of the invention includes car body 1, and 1 lower section of car body is connect by 2 axis of first support There is the first runner 3, the second runner 4,4 coaxial line of the first runner 3 and the second runner, car body 1 are also associated on first runner 3 On be further opened with notch 24, shaft 11 is connected with by second support 25 on car body 1, shaft 11 and the second runner 4 pass through chain 12 interconnect, and fixing sleeve is equipped with cylinder 10 in shaft 11, and cylinder 10 is located inside notch 24, and hopper is also associated on car body 1 6, hopper 6 is located at the top of notch 24, and the lower section of car body 1 is also associated with funnel 7, and the lower section perforation of funnel 7 is connected with sowing pipe 8, funnel 7 is located at the lower section of notch 24, and the outside of cylinder 10 is uniformly connected with bristle 23, is offered on the cylinder of cylinder 10 several Partition board 17 is also respectively connected in the both ends of first cavity 13 of a annular arrangement, cylinder 10, and 10 both ends of cylinder also offer respectively Second cavity 22 of several annular arrangements, the first cavity 13 and the second cavity 22 are separated by partition board 17, movable on partition board 17 It is inserted with bolt 15, the inside of bolt 15 is fixedly connected with the first bottom plate 14, and the first bottom plate 14 is located in the second cavity 22, bolt 15 are also arranged with nut 16, and the outside of bolt 15 is fixedly connected with first baffle 18, and first baffle 18 is located in the first cavity 13 The both sides in portion, first baffle 18 have been respectively fixedly connected with box body 19, and second baffle 21, second baffle 21 are inserted with inside box body 19 Inside be connected with spring 20, the outside of second baffle 21 and the outer wall of the first cavity 13 contact with each other.The car body 1 of the present invention, For connecting the first runner 3 and hopper 6,6 inside of hopper is for holding maize seed seed, when planting seeds, by manually pushing car body 1, the rotation of the first runner 3, and then the second runner 4 by being connect with the first runner 3 and chain 12 are driven, 11 turns of shaft is driven It is dynamic, and then cylinder 10 is driven to rotate, cylinder 10 is located at the notch 24 on car body 1, the funnel 7 for separating hopper 6 and lower section With sowing pipe 8, when car body 1 is static, the partition effect of cylinder 10 makes the maize seed seed inside hopper 6 not fall out, and works as cylinder When body 10 drives rotation by the first runner 3, when the top half of cylinder 10 is turned on hopper 6, corn can enter and fill Into the first cavity 13 of cylinder 10, as cylinder 10 rotates, the first cavity 13 being filled can be rolled over 1 lower section of car body At funnel 7, under the effect of gravity enter funnel 7 and sowing pipe 8, to be seeded on soil, this mode make application rate with The distance that car body 1 advances is directly proportional, and the volume for the first cavity 13 that fixation of seeding rate is, application rate is more accurate, further, Can be with the outreach of adjustment bolt 15, and locked by nut 16, adjust the first baffle 18 inside the first cavity 13 Position, when first baffle 18 is moved forward and backward, spring 20 drive box body 19 inside second baffle 21 outward exert oneself, can be always The state for keeping second baffle 21 and 13 outer wall of the first cavity to contact with each other, to make first cavity 13 in 18 outside of first baffle Volume-tunable, and then the corn seed amount for entering the first cavity 13 every time can be adjusted, application rate can be adjusted by reaching Purpose, the second cavity 22 are used to accommodate the inboard portion of bolt 15, and the first bottom plate prevents bolt from deviating from, and bristle 23 is located at cylinder 10 Outside, play further partition effect, prevent niblet from being fallen in the gap between notch 24 and cylinder 10.The vehicle The side of body 1 is also associated with handrail 5.For handrail 5 for facilitating personnel to push car body 1, the lower section of the funnel 7 is also associated with trench digging Device 9, plough 9 are located at the front side of sowing pipe 8.Plough 9 is for prior to seeding ditching to soil.Sow the bottom of pipe 8 It is connected with turntable 29, the bottom of turntable 29 is located at the outside of sowing pipe 8, and sowing pipe 8 is internally provided with arc-shaped slot 30, turntable 29 The sliding of edge and arc-shaped slot 30 be clamped, the edge of turntable 29 is provided with several holding tanks 31, the setting of 31 bottom surface of holding tank There is shrapnel 32.The side wall of sowing pipe 8 is fixed with elastic plectrum 33, and holding tank 31 is screwed out with the rotation of turntable 29 from sowing pipe 8 It is in contact afterwards with elastic plectrum 33.After seed grain enters sowing pipe 8, since moving irregularly for seed grain is easy to cause seed Grain clamping stagnation is in the end of sowing pipe 8.For this problem, be connected with turntable 29 in sowing pipe 8 of the invention, 29 bottom of turntable with Soil is in contact, and is rotated with the advance turntable 29 of car body 1, and seed grain is fallen into the holding tank 31 at 29 edge of turntable, and with Turntable 29 rotationally disengages sowing pipe 8, falls into soil.The extra seed grain in 31 top of holding tank quilt in 29 rotary course of turntable Arc-shaped slot 30 releases holding tank 31, falls into the holding tank 31 at rear, to realize the uniform release of seed grain.Elastic dialing Piece 33 is used to clear up the sundries and soil that adhere in holding tank 31, ensures the receiving effect of 31 seed grain of holding tank pair.
In addition, metering effect when being sowed in order to further enhance the present invention, the outside of the first baffle 18 is also fixed It is connected with loop bar 28, the outside of loop bar 28 is fixedly connected with the second bottom plate 26, and movable sleeve is gone back on loop bar 28 and is equipped with third baffle 27, By above structure, cylinder 10 is driven to rotate with the rotation of the first runner 3, the second bottom plate 26 is with rotation or on loop bar 28 Lower activity, with the reciprocating motion of the second bottom plate 26, some are deposited in the corn seed in the first cavity 13 can be by the second bottom plate 26 scrape, and prevent from accumulating to influence application rate in the first cavity 13, more accurately be broadcast to make the seeder of the present invention reach Kind effect.
Wherein, the devices such as the plough used in the present invention have been carried out in the patent document that background technology is quoted to be filled Point disclosure, belong to the ripe prior art, this will not be detailed here its concrete structure.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown is merely for convenience of the description present invention, does not indicate or imply the indicated device or element must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (5)

1. a kind of corn drill, including car body(1), car body(1)Lower section passes through first support(2)It is connected with the first runner(3), It is characterized in that:First runner(3)On be also associated with the second runner(4), the first runner(3)With the second runner(4)Coaxially Line, car body(1)On be further opened with notch(24), car body(1)On pass through second support(25)It is connected with shaft(11), shaft(11) With the second runner(4)Pass through chain(12)It interconnects, shaft(11)Upper fixing sleeve is equipped with cylinder(10), cylinder(10)Positioned at scarce Mouthful(24)Inside, car body(1)On be also associated with hopper(6), hopper(6)Positioned at notch(24)Top, car body(1)Lower section also It is connected with funnel(7), funnel(7)Lower section perforation be connected with sowing pipe(8), funnel(7)Positioned at notch(24)Lower section, cylinder (10)Outside be uniformly connected with bristle(23), cylinder(10)Cylinder on offer the first cavity of several annular arrangements (13), cylinder(10)Both ends partition board is also respectively connected(17), cylinder(10)Both ends also offer several ring rows respectively Second cavity of cloth(22), the first cavity(13)With the second cavity(22)Pass through partition board(17)Partition, partition board(17)Upper activity is inserted Equipped with bolt(15), bolt(15)Inside be fixedly connected with the first bottom plate(14), the first bottom plate(14)Positioned at the second cavity (22)It is interior, bolt(15)Also it is arranged with nut(16), bolt(15)Outside be fixedly connected with first baffle(18), first baffle (18)Positioned at the first cavity(13)Inside, first baffle(18)Both sides be respectively fixedly connected with box body(19), box body(19)It is interior Portion is inserted with second baffle(21), second baffle(21)Inside be connected with spring(20), second baffle(21)Outside and the One cavity(13)Outer wall contact with each other.
2. corn drill according to claim 1, it is characterised in that:The car body(1)Side be also associated with handrail (5).
3. corn drill according to claim 1, it is characterised in that:The funnel(7)Lower section be also associated with trench digging Device(9), plough(9)It is managed positioned at sowing(8)Front side.
4. corn drill according to claim 1, it is characterised in that:The sowing pipe(8)Bottom be connected with turntable (29), turntable(29)Bottom be located at sowing manage(8)Outside, sowing pipe(8)It is internally provided with arc-shaped slot(30), turntable (29)Edge and arc-shaped slot(30)Sliding clamping, turntable(29)Edge be provided with several holding tanks(31), holding tank (31)Bottom surface is provided with shrapnel(32).
5. corn drill according to claim 4, it is characterised in that:The sowing pipe(8)Side wall fix it is flexible Plectrum(33), holding tank(31)With turntable(29)Rotation from sowing manage(8)After back-out with elastic plectrum(33)It is in contact.
CN201810422780.7A 2018-05-05 2018-05-05 Corn planter Active CN108551817B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810422780.7A CN108551817B (en) 2018-05-05 2018-05-05 Corn planter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810422780.7A CN108551817B (en) 2018-05-05 2018-05-05 Corn planter

Publications (2)

Publication Number Publication Date
CN108551817A true CN108551817A (en) 2018-09-21
CN108551817B CN108551817B (en) 2021-05-07

Family

ID=63537823

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810422780.7A Active CN108551817B (en) 2018-05-05 2018-05-05 Corn planter

Country Status (1)

Country Link
CN (1) CN108551817B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109315108A (en) * 2018-10-24 2019-02-12 康国民 A kind of agricultural sowing covering device
CN110999577A (en) * 2019-12-04 2020-04-14 内蒙古农业大学 Controllable variable spreading and applying mechanism
CN111083953A (en) * 2019-12-04 2020-05-01 内蒙古农业大学 Accurate material adjusting, spreading and applying mechanism
CN112586138A (en) * 2020-12-12 2021-04-02 安徽省农业科学院棉花研究所 Precision sowing equipment for cotton breeding

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86200480U (en) * 1986-01-28 1986-08-27 田守信 Seed and fertilizer-expelling unit with a wheel attached with spoon-type parts
JPH10136715A (en) * 1996-11-01 1998-05-26 Seibutsukei Tokutei Sangyo Gijutsu Kenkyu Suishin Kiko Device and method for submerging direct sowing with surface layer agitation
CN202035276U (en) * 2011-04-29 2011-11-16 王俊义 Multifunctional precision corn seeder
CN205336814U (en) * 2016-01-29 2016-06-29 张嘉强 Planter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86200480U (en) * 1986-01-28 1986-08-27 田守信 Seed and fertilizer-expelling unit with a wheel attached with spoon-type parts
JPH10136715A (en) * 1996-11-01 1998-05-26 Seibutsukei Tokutei Sangyo Gijutsu Kenkyu Suishin Kiko Device and method for submerging direct sowing with surface layer agitation
CN202035276U (en) * 2011-04-29 2011-11-16 王俊义 Multifunctional precision corn seeder
CN205336814U (en) * 2016-01-29 2016-06-29 张嘉强 Planter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109315108A (en) * 2018-10-24 2019-02-12 康国民 A kind of agricultural sowing covering device
CN109315108B (en) * 2018-10-24 2020-08-18 深圳龙图腾创新设计有限公司 Agricultural seeding earthing device
CN110999577A (en) * 2019-12-04 2020-04-14 内蒙古农业大学 Controllable variable spreading and applying mechanism
CN111083953A (en) * 2019-12-04 2020-05-01 内蒙古农业大学 Accurate material adjusting, spreading and applying mechanism
CN112586138A (en) * 2020-12-12 2021-04-02 安徽省农业科学院棉花研究所 Precision sowing equipment for cotton breeding

Also Published As

Publication number Publication date
CN108551817B (en) 2021-05-07

Similar Documents

Publication Publication Date Title
CN108551817A (en) A kind of corn drill
CN108200785B (en) Automatic missed seeding detection and reseeding device of corn planter
CN109429590B (en) Automatic seed metering formula sugarcane planter
CN210406159U (en) Seeding device for pelleted carrot seeds
CN107148826B (en) A kind of hand propelled automatic spacing mixed seeding device
CN201957423U (en) Corn precision planter
CN214430078U (en) But seed planting device of material is dialled to reducing
CN109601039A (en) A kind of no-till maize device
CN107750533B (en) Precision hill planter for coix
CN202104030U (en) Portable precision seeder
CN208724381U (en) A kind of rice seeder of mistake pocket formula sowing
CN208317374U (en) Paddy rice hole seeding feed mechanism for seed
CN206490991U (en) Maize fine sowing device
CN217428670U (en) Automatic seeder of peony seeds
CN213306204U (en) Saline and alkaline land flax is planted with articulating formula fertilizer injection unit
CN214430000U (en) Seeding interval adjustable seeder blanking structure
CN109429591A (en) A kind of Rice Cropping implanted device
CN211210463U (en) No-tillage precision seeder for after-wheat re-seeding corn
CN212367858U (en) Small-size thunberg fritillary bulb directional planter
CN209949839U (en) Vegetable seed seeder
CN201919327U (en) Seed-metering device of corn precision seed sowing machine
CN206993659U (en) A kind of hand propelled automatic spacing mixed seeding device
CN214545517U (en) Two kind section of thick bamboo sowing mechanism
CN215935538U (en) High-efficient agricultural economy disseminator
US258928A (en) Seed-drill and fertilizer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant