CN220140146U - Automatic go up rice transplanter of seedling benefit seedling - Google Patents
Automatic go up rice transplanter of seedling benefit seedling Download PDFInfo
- Publication number
- CN220140146U CN220140146U CN202321709708.5U CN202321709708U CN220140146U CN 220140146 U CN220140146 U CN 220140146U CN 202321709708 U CN202321709708 U CN 202321709708U CN 220140146 U CN220140146 U CN 220140146U
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- seedling
- supplementing
- conveying belt
- assembly
- tray
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 40
- 235000009566 rice Nutrition 0.000 title claims abstract description 40
- 230000008901 benefit Effects 0.000 title description 2
- 240000007594 Oryza sativa Species 0.000 title 1
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 230000001502 supplementing effect Effects 0.000 claims abstract description 46
- 241000209094 Oryza Species 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 5
- 210000000078 claw Anatomy 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 8
- 241000196324 Embryophyta Species 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
Abstract
A rice transplanter capable of automatically feeding and supplementing seedlings belongs to the technical field of rice transplanting machinery. The method is used for solving the problems that the existing rice machine cannot adjust plant spacing and the planting effect is affected. The seedling transplanting mechanism comprises a variable-pitch guide rail assembly and a variable-pitch seedling dropping assembly, wherein the front end of the variable-pitch guide rail assembly is arranged above the seedling supplementing conveying belt and used for separating and adjusting seedling planting distances on the seedling supplementing conveying belt, the variable-pitch seedling dropping assembly is connected with the rear end of the variable-pitch guide rail assembly, and seedlings fall into a paddy field through the variable-pitch seedling dropping assembly. The seedling transplanting mechanism can achieve the purposes of adjusting the plant spacing and adjusting the seedling transportation track simultaneously only by adjusting the position of the seedling dropping cylinder, simplifies the operation steps, reduces the operation difficulty and improves the working efficiency. The utility model adopts a magnetic attraction mode to separate the seedlings from the seedling trays, has high separation speed and good separation effect, saves time and labor compared with the traditional manual separation mode, and improves the working efficiency.
Description
Technical Field
The utility model belongs to the technical field of rice transplanting machinery, and particularly relates to a rice transplanting machine capable of automatically feeding and supplementing rice seedlings.
Background
At present, the rice is planted by adopting manual planting or a rice transplanter, the manual planting is time-consuming and labor-consuming, the efficiency is low, the mechanical planting is adopted, and the time and labor are saved, but because the temperature, the illumination, the soil nutrition and other planting conditions in each area are different, the planting distance between the rice is correspondingly adjusted according to the planting conditions, and the current rice planting machine does not have the function, is fixed in plant distance, and affects the yield of the rice.
For example, the utility model patent publication No. CN116267127A discloses an intelligent unmanned two-row high-speed rice transplanter and a rice transplanting method thereof, wherein the intelligent unmanned two-row high-speed rice transplanter comprises a movable chassis, a buoyancy adjusting mechanism, a transmission mechanism, a seedling box assembly and a rice transplanting mechanism. The seedling planting machine can realize accurate and efficient seedling taking and seedling planting, keeps consistency of planting distance and planting depth of the seedling planting, but does not have the function of adjusting the planting distance.
Disclosure of Invention
The utility model aims to solve the problem that the existing rice machine cannot adjust plant spacing and affects planting effect, and further provides a rice transplanter capable of adjusting plant spacing and automatically feeding and supplementing seedlings.
The technical scheme adopted by the utility model is as follows:
a rice transplanter capable of automatically feeding and supplementing rice seedlings comprises a cart body, a rice seedling feeding mechanism, a tray removing mechanism, a rice seedling supplementing conveying belt and a rice seedling transplanting mechanism, wherein the rice seedling feeding mechanism, the tray removing mechanism, the rice seedling supplementing conveying belt and the rice seedling transplanting mechanism are installed on the cart body and are sequentially connected; the seedling transplanting mechanism comprises a variable-pitch guide rail assembly and a variable-pitch seedling dropping assembly, wherein the front end of the variable-pitch guide rail assembly is arranged above the seedling supplementing conveying belt and used for separating and adjusting seedling planting distances on the seedling supplementing conveying belt, the variable-pitch seedling dropping assembly is connected with the rear end of the variable-pitch guide rail assembly, and seedlings drop into a paddy field through the variable-pitch seedling dropping assembly.
Compared with the prior art, the utility model has the following beneficial effects:
1. the seedling transplanting mechanism can achieve the purposes of adjusting the plant spacing and adjusting the seedling transportation track simultaneously only by adjusting the position of the seedling dropping cylinder, simplifies the operation steps, reduces the operation difficulty and improves the working efficiency.
2. The utility model adopts a magnetic attraction mode to separate the seedling from the seedling tray, has high separation speed and good separation effect, saves time and labor compared with the traditional manual separation mode, improves the working efficiency, and can better protect the soil body part of the seedling compared with the traditional mechanical separation mode.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the transplanting mechanism of the present utility model;
FIG. 3 is a schematic view of the structure of the connecting button of the present utility model;
FIG. 4 is a front cross-sectional view of the seedling dropping drum of the present utility model;
FIG. 5 is a top view of the tray deck of the present utility model;
FIG. 6 is a schematic view of the attachment of the guard plate to the clamping conveyor belt of the present utility model;
FIG. 7 is a schematic view of the arcuate plate structure of the present utility model;
wherein: 1. a vehicle body; 2. a seedling feeding mechanism; 3. a tray removing mechanism; 4. seedling supplementing conveying belt; 5. a transplanting mechanism; 21. a hanging plate; 31. a magnetic disc removing assembly; 32. a transport assembly; 311. a rotating roller; 312. a connecting rod; 313. a magnet; 314. a receiving plate; 321. an arc-shaped plate; 322. seedling conveyer belt; 323. a protection plate; 324. clamping the conveying belt; 325. a support plate; 326. a connecting claw; 41. an annular chute; 51. a variable-pitch guide rail assembly; 52. a variable-pitch seedling dropping assembly; 511. a support connecting rod; 512. a long guide rail; 513. a connecting button; 521. a seedling dropping cylinder; 522. a sleeve; 523. a scale bar; 524. a jackscrew handle.
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, reference should be made to the following detailed description of the utility model with reference to the accompanying drawings.
Referring to fig. 1 to 7, the rice transplanter capable of automatically feeding and supplementing seedlings comprises a vehicle body 1, a seedling feeding mechanism 2, a tray removing mechanism 3, a seedling supplementing conveying belt 4 and a seedling transplanting mechanism 5, wherein the seedling feeding mechanism 2, the tray removing mechanism 3, the seedling supplementing conveying belt 4 and the seedling transplanting mechanism 5 are installed on the vehicle body 1 and are sequentially connected; wherein: the seedling feeding mechanism 2 sequentially sends seedling trays to the tray removing mechanism 3, the tray removing mechanism 3 separates the seedling trays from seedlings, the seedlings are sent to the seedling supplementing conveyor belt 4, the seedling supplementing conveyor belt 4 conveys the seedlings to the seedling transplanting mechanism 5, and the seedlings fall into a paddy field through the seedling transplanting mechanism 5; the seedling transplanting mechanism 5 comprises a variable-pitch guide rail assembly 51 and a variable-pitch seedling dropping assembly 52, wherein the front end of the variable-pitch guide rail assembly 51 is arranged above the seedling supplementing conveyor belt 4 and is used for separating and adjusting seedling planting distances on the seedling supplementing conveyor belt 4, the variable-pitch seedling dropping assembly 52 is connected with the rear end of the variable-pitch guide rail assembly 51, and seedlings drop into a paddy field through the variable-pitch seedling dropping assembly 52.
As shown in fig. 1 and 2, the variable-pitch seedling dropping assembly 52 comprises a scale bar 523, a plurality of seedling dropping drums 521, a plurality of sleeves 522 and a plurality of jackscrew handles 524; the front end of each sleeve 522 is used for installing seedling dropping barrels 521, a plurality of sleeves 522 are sleeved on a standard rod 523 in a sliding manner, so that the spacing between the seedling dropping barrels 521 is adjustable, the planting distance of seedlings is adjusted, each sleeve 522 is fixed on the standard rod 523 through a jackscrew handle 524, and two ends of the standard rod 523 are fixed on a frame body of a seedling supplementing conveying belt 4 through connecting frames.
As shown in fig. 1 and 2, the variable-pitch guide rail assembly 51 includes a plurality of support link rods 511, a plurality of elongated guide rails 512, and a plurality of link buttons 513; the inlet of each seedling dropping drum 521 is arranged at the conveying end of the seedling supplementing conveying belt 4, the left side and the right side of the inlet of each seedling dropping drum 521 are respectively provided with a supporting connecting rod 511, each supporting connecting rod 511 extends upwards to be hinged with the rear end of the corresponding long guide rail 512, each two long guide rails 512 form a seedling conveying track above the seedling supplementing conveying belt 4, the front end of each long guide rail 512 is hinged with the upper end of one connecting button 513, and the lower end of each connecting button 513 is slidably inserted into the annular chute 41 of the seedling supplementing conveying belt 4, so that the position of the connecting button 513 is not affected by the conveying operation of the seedling supplementing conveying belt 4 due to the annular chute 41.
Before transplanting, the plant spacing of the rice seedlings is determined, then the spacing of each seedling dropping tube 521 is adjusted according to the scale number on the scale rod 523, and the rear ends of the two long guide rails 512 hinged with the seedling dropping tube 521 incline along with the movement of the seedling dropping tube 521, so that the transportation direction of the seedling transportation rail always corresponds to the inlet of the seedling dropping tube 521.
As shown in fig. 2 and 3, the upper end of each connecting button 513 is a cylindrical portion and is used for hinging with the long-strip guide rail 512, the lower end of each connecting button 513 is a rectangular portion and is used for slidably connecting with the annular sliding groove 41 of the seedling supplementing conveyor belt 4, and the annular sliding grooves 41 are uniformly distributed and arranged on the surface of the belt of the seedling supplementing conveyor belt 4.
As shown in fig. 4, the inlet of each seedling dropping tube 521 adopts a conical opening with the large diameter end facing upwards. The upper port diameter is large to facilitate the seedling to enter the seedling dropping tube 521, and the lower port diameter is small to facilitate the accurate landing of the seedling.
As shown in fig. 1, the seedling feeding mechanism 2 is a hanging plate conveyor arranged vertically, the seedling feeding mechanism 2 is discharged from the front end of the seedling feeding mechanism, and the length of a hanging plate 21 of the seedling feeding mechanism 2 is set as follows: is more than one half of the length of the seedling tray and less than the length of the seedling tray.
The seedling trays are sequentially placed on the hanging plate 21 of the seedling feeding mechanism 2 by workers, the hanging plate 21 of the seedling feeding mechanism 2 drives the seedling trays to move to the rear end of the seedling feeding mechanism 2 from the lower side of the front end, and the seedling trays naturally fall onto the tray removing mechanism 3, and at the moment, the seedling trays are arranged above seedlings and are in a turnover state.
As shown in fig. 1, each seedling tray is made of magnetic material or the tray body of each seedling tray is provided with magnetic material; the disc removing mechanism 3 comprises a magnetic disc removing assembly 31 and a conveying assembly 32; the conveying component 32 is connected between the seedling feeding mechanism 2 and the seedling supplementing conveying belt 4, the magnetic type tray removing component 31 is arranged above the conveying component 32, the magnetic type tray removing component 31 adsorbs the seedling tray through magnetic force, the seedling tray is separated from the seedling, and the magnetic type tray removing component 31 and the conveying component 32 respectively convey the seedling tray and the seedling to the next working procedure. The seedling tray is collected by a worker.
As shown in fig. 1, the magnetic-attraction type tray assembly 31 includes a rotating roller 311, a receiving plate 314, a plurality of connecting rods 312, and a plurality of magnets 313; the rotating roller 311 is rotatably mounted on a frame of the vehicle body 1 and driven by a motor, a plurality of connecting rods 312 are uniformly distributed around and fixed on the outer surface of the rotating roller 311, a magnet 313 is fixed at the outer end of each connecting rod 312, the magnet 313 is used for adsorbing seedling trays, a bearing plate 314 is arranged at the front end of the movement track of the magnet 313, and the bearing plate 314 is used for stripping the seedling trays on the magnet 313.
The rotating roller 311 is driven by a motor and drives the magnets 313 to rotate together, when one of the magnets 313 moves to the bottom and approaches to the seedling tray which is being conveyed, the seedling tray is adsorbed, the seedling tray is driven to rotate continuously until the seedling tray moves to the bearing plate 314, then the magnets 313 continue to rotate, the seedling tray is blocked on the bearing plate 314, and the seedling tray is collected by a worker.
As shown in fig. 5 to 7, the conveying assembly 32 comprises an arc 321, a seedling conveying belt 322, a plurality of protection plates 323, a plurality of clamping conveying belts 324 and a plurality of support plates 325; the seedling tray is characterized in that a plurality of support plates 325 are arranged above the seedling conveying belts 322 side by side at equal intervals, the support plates 325 are arranged at the positions, close to the middle, of the seedling conveying belts 322, seedling tray drop positions are reserved at the front ends of the seedling conveying belts 322, seedling trays dropped by the seedling feeding mechanism 2 fall on the seedling tray drop positions, each support plate 325 is provided with a clamping conveying belt 324 along the length direction of the support plates, seedlings are clamped between every two adjacent clamping conveying belts 324, a protection plate 323 is arranged above each clamping conveying belt 324, the protection plate 323 is used for covering gaps between belts of the clamping conveying belts 324, a rotating shaft and a motor of each clamping conveying belt 324 are arranged in the protection plate 323, the arc plates 321 are concentrically arranged behind rotating rollers of the seedling conveying belts 322 and used for overturning seedlings, the arc plates 321 are fixed on the vehicle body 1, and the rear ends of the protection plates 323 are connected with the arc plates 321 through respective connecting claws 326 and the corresponding support plates 325.
As shown in fig. 6, each support plate 325 is provided with a slope surface inclined forward and downward to facilitate the support of the seedling tray.
The upper surface of the support plate 325 is disposed flush with the upper surface of the shielding plate 323.
The protection plate 323 can protect the soil body of the seedling from abrasion of the clamping conveyer belt 324.
The seedling tray that turns over on the seedling conveyer belt 322 is transported to backup pad 325 department by seedling conveyer belt 322 gradually, and backup pad 325 supports seedling tray gradually, separates each group seedling simultaneously, then, seedling tray transport gradually to centre gripping conveyer belt 324 department, and at this moment, centre gripping conveyer belt 324 centre gripping seedling, seedling tray transition to guard plate 323 under the effect of backup pad 325, and at this moment, the magnetite 313 that moves is absorbed the seedling tray, and centre gripping conveyer belt 324 transports the seedling after the separation to arc 321 department, and the seedling is overturned naturally along with arc 321, falls on mending seedling conveyer belt 4.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A rice transplanter capable of automatically feeding and supplementing rice seedlings comprises a vehicle body (1), a seedling feeding mechanism (2), a tray removing mechanism (3), a seedling supplementing conveying belt (4) and a transplanting mechanism (5), wherein the seedling feeding mechanism (2), the tray removing mechanism (3), the seedling supplementing conveying belt (4) and the transplanting mechanism (5) are installed on the vehicle body (1) and are sequentially connected; the method is characterized in that: the seedling transplanting mechanism (5) comprises a variable-pitch guide rail assembly (51) and a variable-pitch seedling dropping assembly (52), wherein the front end of the variable-pitch guide rail assembly (51) is arranged above the seedling supplementing conveying belt (4) and used for separating and adjusting seedling planting distances on the seedling supplementing conveying belt (4), and the variable-pitch seedling dropping assembly (52) is connected with the rear end of the variable-pitch guide rail assembly (51) and seedlings drop into a paddy field through the variable-pitch seedling dropping assembly (52).
2. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 1, wherein: the variable-pitch seedling dropping assembly (52) comprises a scale rod (523), a plurality of seedling dropping cylinders (521), a plurality of sleeves (522) and a plurality of jackscrew handles (524); each sleeve (522) front end all is used for installing seedling section of thick bamboo (521), and a plurality of sleeves (522) all slide the suit on scale pole (523), make the interval between a plurality of seedling section of thick bamboo (521) adjustable, and every sleeve (522) all is fixed on scale pole (523) through jackscrew handle (524), on the support body of seedling conveyer belt (4) is mended through the link to scale pole (523) both ends.
3. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 2, wherein: the variable-pitch guide rail assembly (51) comprises a plurality of support connecting rods (511), a plurality of long-strip guide rails (512) and a plurality of connecting buttons (513); the inlet of each seedling dropping drum (521) is arranged at the conveying end of the seedling supplementing conveying belt (4), the left side and the right side of the inlet of each seedling dropping drum (521) are respectively provided with a supporting connecting rod (511), each supporting connecting rod (511) extends upwards to be hinged with the rear end of the corresponding long guide rail (512), each two long guide rails (512) form a seedling conveying track above the seedling supplementing conveying belt (4), the front end of each long guide rail (512) is hinged with the upper end of one connecting button (513), and the lower end of each connecting button (513) is slidably inserted into the annular chute (41) of the seedling supplementing conveying belt (4).
4. A rice transplanter for automatically feeding and supplementing seedlings according to claim 3, wherein: the upper end of each connecting button (513) is a cylindrical part and is used for being hinged with the long guide rail (512), and the lower end of each connecting button (513) is a rectangular part and is used for sliding with the annular chute (41) of the seedling supplementing conveying belt (4)
The annular sliding grooves (41) are uniformly distributed on the surface of the seedling supplementing conveying belt (4).
5. A rice transplanter for automatically feeding and supplementing seedlings according to claim 3, wherein: the inlet of each seedling dropping cylinder (521) adopts a conical opening with the large diameter end upwards.
6. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 1, wherein: the seedling feeding mechanism (2) is a hanging plate conveyor which is vertically arranged, the seedling feeding mechanism (2) is discharged from the front end of the seedling feeding mechanism, and the length of a hanging plate (21) of the seedling feeding mechanism (2) is set as follows: is more than one half of the length of the seedling tray and less than the length of the seedling tray.
7. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 1, wherein: each seedling tray is made of magnetic materials or the tray body of each seedling tray is internally provided with the magnetic materials; the disc removing mechanism (3) comprises a magnetic disc removing assembly (31) and a conveying assembly (32); the seedling tray is characterized in that the conveying assembly (32) is connected between the seedling feeding mechanism (2) and the seedling supplementing conveying belt (4), the magnetic type tray removing assembly (31) is arranged above the conveying assembly (32), the magnetic type tray removing assembly (31) adsorbs seedling trays through magnetic force to separate the seedling trays from seedlings, and the magnetic type tray removing assembly (31) and the conveying assembly (32) respectively convey the seedling trays and the seedlings to the next procedure.
8. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 7, wherein: the magnetic disc removing assembly (31) comprises a rotating roller (311), a bearing plate (314), a plurality of connecting rods (312) and a plurality of magnets (313); the rotating roller (311) is rotatably mounted on a frame of the vehicle body (1) and driven by a motor, a plurality of connecting rods (312) are uniformly distributed around and fixed on the outer surface of the rotating roller (311), a magnet (313) is fixed at the outer end of each connecting rod (312), the magnet (313) is used for adsorbing a seedling tray, a bearing plate (314) is arranged at the front end of a movement track of the magnet (313), and the bearing plate (314) is used for stripping the seedling tray on the magnet (313).
9. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 8, wherein: the conveying assembly (32) comprises an arc-shaped plate (321), a seedling conveying belt (322), a plurality of protection plates (323), a plurality of clamping conveying belts (324) and a plurality of supporting plates (325); the seedling conveying device comprises a plurality of supporting plates (325), a seedling tray, a seedling conveying belt (322), a seedling plate (323), an arc plate (321), a plurality of connecting claws (326) and a plurality of protecting plates (323) which are arranged above the seedling conveying belt (322) side by side at equal intervals, the plurality of supporting plates (325) are arranged at the position, close to the middle, of the seedling conveying belt (322), the seedling tray is reserved at the front end of the seedling conveying belt (322), each supporting plate (325) is provided with a clamping conveying belt (324) along the length direction of the supporting plate, each clamping conveying belt (324) is used for clamping seedlings between every two adjacent clamping conveying belts (324), each protecting plate (323) is arranged above each clamping conveying belt (324), the protecting plates (323) is used for covering a gap between the clamping conveying belts (324), a rotating shaft of each clamping conveying belt (324) and a motor are arranged in the protecting plates (323), the arc plate (321) is concentrically arranged at the rear of the rotating roller of the seedling conveying belt (322) and used for overturning seedlings, the arc plate (321) is fixed on a vehicle body (1), and the rear ends of the protecting plates (323) are connected with the arc plate (321) through the connecting claws (326) respectively.
10. The automatic seedling feeding and supplementing rice seedling transplanting machine according to claim 9, wherein: each supporting plate (325) is provided with a slope surface which is inclined forward and downward so as to support the seedling tray conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321709708.5U CN220140146U (en) | 2023-06-30 | 2023-06-30 | Automatic go up rice transplanter of seedling benefit seedling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321709708.5U CN220140146U (en) | 2023-06-30 | 2023-06-30 | Automatic go up rice transplanter of seedling benefit seedling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220140146U true CN220140146U (en) | 2023-12-08 |
Family
ID=89016392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321709708.5U Active CN220140146U (en) | 2023-06-30 | 2023-06-30 | Automatic go up rice transplanter of seedling benefit seedling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220140146U (en) |
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2023
- 2023-06-30 CN CN202321709708.5U patent/CN220140146U/en active Active
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