CN110622662A - Rape pot seedling transplanting device - Google Patents
Rape pot seedling transplanting device Download PDFInfo
- Publication number
- CN110622662A CN110622662A CN201910993919.8A CN201910993919A CN110622662A CN 110622662 A CN110622662 A CN 110622662A CN 201910993919 A CN201910993919 A CN 201910993919A CN 110622662 A CN110622662 A CN 110622662A
- Authority
- CN
- China
- Prior art keywords
- seedling
- rocker
- cam
- rape
- transplanting device
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/02—Transplanting machines for seedlings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transplanting Machines (AREA)
Abstract
The invention discloses a rape pot seedling transplanting device which comprises a rack, a seedling pushing plate, a first rocker and a second rocker, wherein two ends of the first rocker are correspondingly hinged with the rack and the seedling pushing plate respectively, two ends of the second rocker are correspondingly hinged with the rack and the seedling pushing plate respectively, the rack, the seedling pushing plate, the first rocker and the second rocker are combined to form a four-link mechanism allowing the seedling pushing plate to reciprocate, and the rape pot seedling transplanting device further comprises a driving assembly for driving the seedling pushing plate to reciprocate. The invention has the advantages of simple and compact structure, easy processing and manufacturing, low cost, stable and reliable work and the like.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a rape pot seedling transplanting device.
Background
The rape is a main oil crop in China, and has the characteristics of high planting density, strong vitality and preference for water logging. Chinese rape is mainly grown in the middle and lower reaches of Yangtze river by mainly using winter rape and is planted with rice in a crop rotation mode. As the winter rape has long growth period, the winter rape is usually sown in the first year in 9 months and harvested in the next year in 5 months, the harvesting period of the winter rape conflicts with the sowing period of the early rice of the two-season rice, and the sowing period of the winter rape conflicts with the harvesting period of the late rice of the two-season rice. By adopting the method of seedling culture and transplanting in the proper age period, the contact ratio of the growing period in the rotation process of various crops can be increased, the growth time of the field can be shortened, the multi-season rotation can be realized, particularly, the pot seedling transplanting is adopted, the green returning time after the crops are transplanted is fast, and the growth time of the field can be shortened to the greatest extent. But the method is relatively direct seeding, the transplanting process is complex, the cost is high, and a precise and simplified solution is urgently needed. Because rape planting density is high, the vegetable transplanting machine that commonly uses is difficult to satisfy high-density planting requirement, simultaneously because rape's vitality is strong, rape is planted and is lower to transplanting the performance requirement of mechanism, and adopts vegetable transplanting machine to transplant the structure complicacy, and the running cost is high.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides the rape pot seedling transplanting device which is simple and compact in structure, easy to process and manufacture, low in cost and stable and reliable in work.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a rape alms bowl seedling transplanting device, includes frame, pushes away seedling board, first rocker and second rocker, the both ends of first rocker correspond respectively and push away the seedling board articulated with the frame, the both ends of second rocker correspond respectively and push away the seedling board articulated with the frame, push away seedling board, first rocker and second rocker combination form a four-bar linkage that allows to push away seedling board reciprocating motion, rape alms bowl seedling transplanting device still includes and is used for ordering about the drive assembly who pushes away seedling board reciprocating motion.
As a further improvement of the above technical solution:
the driving assembly comprises an elastic piece and a cam which is installed on the rack and driven by the driving mechanism to rotate, the elastic piece is connected between the rack and the first rocking bar, and the elastic piece forces the first rocking bar to abut against the cam so that the first rocking bar swings in a reciprocating mode when the cam rotates.
The connecting line between the two hinge points on the first rocker and the connecting line between the two hinge points on the second rocker are parallel to each other and have the same length.
The rotating shaft of the cam is arranged on the frame in a mode of adjusting the installation position through a position adjusting mechanism.
The position adjusting mechanism comprises a mounting seat, a screw rod and an adjusting sliding groove arranged on the rack, the screw rod penetrates through the adjusting sliding groove and can move along the adjusting sliding groove, one end of the screw rod is connected with the mounting seat, the other end of the sliding rod is in threaded fit connection with a locking nut which is matched with the mounting seat and used for clamping the fixed rack, and a rotating shaft of the cam is rotatably arranged on the mounting seat.
The screw rod slides along the adjusting sliding groove in a direction parallel to the extending direction of the first rocking rod when the second rocking rod is vertically arranged.
The contour surface of the cam is provided with a constant-speed driving section which forces the first rocker to drive the seedling pushing plate to move at a constant speed so as to push the pot seedlings out.
The profile surface of the cam is provided with a quick return driving section which forces the first rocker to drive the seedling pushing plate to return quickly after the seedlings are pushed out of the pot.
The pin joint of the second rocker and the frame is located above the pin joint of the second rocker and the seedling pushing plate, and the upper part of the second rocker is provided with a seedling dropping cylinder for the dropped pot seedlings to pass through.
Still install the flexible brush that is located seedling section of thick bamboo below that falls in the frame, second rocker and flexible brush enclose into one and supply from the seedling section of thick bamboo that falls the alms bowl seedling that falls to the flexible seedling channel that falls that passes through when pushing away the seedling board motion, the corresponding increase and decrease of interval along with pushing away the corresponding motion of seedling board of flexible brush and the seedling board on the horizontal direction.
Compared with the prior art, the invention has the advantages that:
the rape pot seedling transplanting device provided by the invention adopts a four-bar mechanism formed by combining the frame, the seedling pushing plate, the first rocker and the second rocker to make the seedling pushing plate reciprocate, can intermittently push out pot seedlings, realizes pot seedling transplanting, and has the advantages of simple and compact structure, easiness in processing and manufacturing, low cost, and stability and reliability in work. Can meet the requirements of low transplanting mechanical performance and high planting density for transplanting the rape pot seedlings.
Drawings
Fig. 1 is a schematic structural diagram of a rape pot seedling transplanting device.
Fig. 2 is a schematic structural diagram of the seedling pushing plate at different pushing stroke positions.
Fig. 3 is a graph of a profile curve of a cam.
Illustration of the drawings:
1. pushing the seedling plate; 2. a first rocker; 3. a second rocker; 4. an elastic member; 5. a cam; 6. a flexible brush; 7. seedling falling cylinder; 8. and a frame.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 and 2, the rape pot seedling transplanting device of the embodiment includes a frame 8, a seedling pushing plate 1, a first rocker 2 and a second rocker 3, wherein two ends of the first rocker 2 are respectively hinged to the frame 8 and the seedling pushing plate 1, two ends of the second rocker 3 are respectively hinged to the frame 8 and the seedling pushing plate 1, the frame 8, the seedling pushing plate 1, the first rocker 2 and the second rocker 3 are combined to form a set of four-bar mechanism allowing the seedling pushing plate 1 to reciprocate, and the rape pot seedling transplanting device further includes a driving assembly for driving the seedling pushing plate 1 to reciprocate. The rape pot seedling transplanting device adopts a four-bar mechanism formed by combining the frame 8, the seedling pushing plate 1, the first rocker 2 and the second rocker 3 to ensure that the seedling pushing plate 1 reciprocates, can intermittently push out pot seedlings, realizes seedling pushing and transplanting in the horizontal direction in the groove, and has the advantages of simple and compact structure, easy processing and manufacturing, low cost, and stable and reliable work. Can meet the requirements of low transplanting mechanical performance and high planting density for transplanting the rape pot seedlings.
In this embodiment, the driving assembly includes an elastic member 4 and a cam 5 installed on the frame 8 and driven by the driving mechanism to rotate, the elastic member 4 is connected between the frame 8 and the first rocking bar 2, and the elastic member 4 forces the first rocking bar 2 to abut against the cam 5 so that the first rocking bar 2 swings back and forth when the cam 5 rotates. When the driving mechanism drives the cam 5 to rotate, the elastic piece 4 forces the first rocker 2 to always abut against the cam 5, the first rocker 2 swings in a reciprocating manner along with the change of the profile surface of the cam 5, and then the seedling pushing plate 1 moves in a reciprocating manner, as shown in fig. 2, the seedling pushing plate 1 is located at an initial position I before pushing seedlings, the initial position I moves to a seedling pushing terminal position III from an intermediate position II during pushing the seedlings, the distance from the initial position I to the seedling pushing terminal position III is a seedling pushing stroke of the seedling pushing plate 1, and the seedling pushing stroke is related to the transplanting planting distance; after the pot seedlings are pushed out, the seedling pushing plate 1 moves to the initial position I from the seedling pushing end point position III through the intermediate position II, and a transplanting cycle is completed. The driving component adopts the combination of the cam 5 and the elastic piece 4 which are matched with the first rocker 2, so that the whole rape pot seedling transplanting device has simple and compact structure and low cost. The elastic member 4 is preferably a tension spring. The drive mechanism is conventional in the art, for example, a combination of a motor and a chain drive, the motor being connected to the shaft of the cam 5 via the chain drive and driving it in rotation.
In this embodiment, the line between two hinge points on the first rocker 2 and the line between two hinge points on the second rocker 3 are parallel to each other and have the same length, that is, the frame 8, the seedling pushing plate 1, the four-bar linkage formed by combining the first rocker 2 and the second rocker 3 are the parallelogram four-bar linkage, so that the reciprocating motion track of the seedling pushing plate 1 is linear translation motion, the improvement of the stability and reliability of the movement of pushing out the pot seedlings is facilitated, and the damage to the pot seedlings can be avoided. Preferably, the hinge point of the first rocker 2 and the frame 8 and the hinge point of the second rocker 3 and the frame 8 are positioned in the same horizontal plane, so that the seedling pushing plate 1 reciprocates in the horizontal plane to horizontally push out the pot seedlings. Of course, in other embodiments, the first rocking bar 2 and the second rocking bar 3 may not be parallel and have different lengths, so that the seedling pushing plate 1 rotates at a small angle to meet different requirements for transplanting crops.
In this embodiment, the rotating shaft of the cam 5 is mounted on the frame 8 via a position adjusting mechanism in such a manner that the mounting position can be adjusted. The swing stroke range of the first rocker 2, namely the stroke range of the reciprocating motion of the seedling pushing plate 1, can be adjusted by adjusting the mounting position of the rotating shaft of the cam 5, so that the transplanting planting distance adjustment is realized, and the transplanting requirement of various crops with different planting distances can be met.
In this embodiment, the position adjustment mechanism includes mount pad, screw rod and locates the regulation spout on frame 8, and the screw rod runs through the regulation spout and can follow the regulation spout and remove, and the one end of screw rod links to each other with the mount pad, and the other end screw-thread fit of slide bar is connected with the lock nut who presss from both sides tight fixed frame 8 with the mount pad cooperation, and the pivot of cam 5 is rotated and is installed on the mount pad. When the installation position of the rotating shaft of the cam 5 needs to be adjusted, the locking nut is loosened, the screw rod, the locking nut and the installation seat can move along the adjusting sliding groove to adjust the position, and after the adjustment is finished, the locking nut is screwed down again, so that the screw rod, the locking nut and the installation seat can be fixed at the adjusted position. The position adjusting mechanism has the advantages of simple structure, convenience in adjustment, easiness in manufacturing and low cost.
In this embodiment, the direction in which the screw slides along the adjustment chute is parallel to the extending direction of the first rocking bar 2 when the second rocking bar 3 is vertically arranged. The influence of the maximum pushing distance of the cam 5 is received, the position adjusting space of the cam 5 is limited, the sliding direction of the screw rod along the adjusting sliding chute is parallel to the extending direction of the first rocker 2 when the second rocker 3 is vertically arranged, zero-speed seedling planting can be realized when horizontal pushing seedlings are transplanted under the condition of different plant spacing, and the transplanting quality after the plant spacing is changed is improved.
In this embodiment, the contour surface of the cam 5 has a constant-speed driving section which forces the first rocker 2 to drive the seedling pushing plate 1 to move at a constant speed so as to push out the pot seedlings. The uniform-speed driving section forces the first rocker 2 to drive the seedling pushing plate 1 to move at a uniform speed to push out the pot seedlings, so that sufficient zero-speed seedling planting time can be ensured, and the seedling planting quality is improved.
In this embodiment, the contour surface of the cam 5 has a fast return driving section which forces the first rocker 2 to carry the seedling pushing plate 1 to return fast after the seedling pushing plate pushes out the pot seedlings. The quick return driving section can force the first rocker 2 to drive the seedling pushing plate 1 to return quickly after the pot seedlings are pushed out, so that the seedling receiving time can be prolonged, and the accuracy of the received seedlings is improved.
In order to make the transplanting device have the transplanting characteristic, the zero-speed transplanting principle must be satisfied. Namely, the machine advances along the advancing direction, the seedling pushing plate 1 of the transplanting device pushes seedlings backwards, the seedling pushing plate 1 has a certain moving speed relative to the machine, and after the passing speed is compounded, the moving speed of the seedling pushing plate 1 relative to the ground in the key stroke of the transplanting stroke approaches zero speed. Only when the transplanting device meets the zero-speed transplanting principle, the transplanting quality can be ensured, the seedling pushing plate 1 is slow relative to the ground, seedlings are easy to fall forward, and the seedlings can be thrown backwards at a high speed. The transplanting device of the embodiment has the characteristic of zero-speed seedling planting when the transplanting machine runs in a certain fixed speed interval.
In the present embodiment, the change law of the push stroke of the cam 5 is as shown in fig. 3, and in the range of one rotation (360 °) of the cam 5, 0 ° to 180 ° is the push stroke of the cam 5, and 181 ° to 360 ° is the return stroke of the cam 5. Between 0 and 45 degrees of the cam 5, as shown by the transition push stroke A of the cam 5, the push stroke of the cam 5 is smoothly transited from the base circle, and 46 degrees to 175 degrees are the push stroke of the cam 5, as shown by the push stroke B of the cam 5, and the push stroke track at the moment is closely related to the transplanting track. 175-190 degrees are transition strokes of the cam 5, as shown by the transition stroke C of the cam 5, the rapid retreating stroke is between 190 degrees and 300 degrees, as shown by the rapid retreating stroke D of the cam 5, the pushing stroke of the cam 5 is rapidly reduced, the rapid return of the seedling pushing plate 1 is realized, the seedling receiving time is favorably prolonged, and the seedling receiving accuracy of the transplanting mechanism is improved. 191-360 degrees, the cam 5 has no pushing stroke, the transplanting device pauses to move in the interval to wait for receiving the seedlings, the waiting time for receiving the seedlings can be prolonged, and the accuracy of receiving the seedlings is improved. The contour line J of the cam 5 is a line of varying curvature with respect to the reference straight line K. The change rule of the push stroke of the cam 5 corresponds to the motion track (relative to the ground and at x) of the seedling pushing plate 11And y1The directions are respectively superposed with the running speeds of the transplanting machine. ) Such as X1OY1And as shown in a coordinate system, the section a is the beginning of pushing seedlings by the seedling pushing plate 1, the section b is the constant-speed pushing seedlings by the seedling pushing plate 1, the motion track of the section a is a straight line, and the longer the straight line section is, the higher the transplanting quality is. The section c is the stroke switching of the seedling pushing plate 1, the section d is the rapid return track of the seedling pushing plate 1, the larger the slope of the rapid return track is, the better the rapid return effect is, and the section e is the stroke of the seedling pushing plate 1 close to stopping relative to the transplanting device. Wherein the slope of the segment d is greater than that of the segment a, and the slope of the segment a is greater than that of the segment e.
Of course, in other embodiments, the cam 5 profile may be devoid of the transitions a and C, or the cam 5 profile may be devoid of the transitions a and C and the near-stop E. The transplanting quality is not influenced, and the seedling receiving accuracy of the transplanting device is slightly influenced.
In this embodiment, the pin joint of second rocker 3 and frame 8 is located second rocker 3 and pushes away the pin joint top of seedling board 1, and the upper portion of second rocker 3 is equipped with the seedling section of thick bamboo 7 that falls that the alms bowl seedling that is used for supplying to drop passes through, does benefit to the reliable seedling that falls of assurance alms bowl seedling, improves seedling position accuracy nature that falls. Preferably, the seedling falling cylinder 7 is a square cylinder or a round cylinder.
In this embodiment, still install the flexible brush 6 that is located seedling section of thick bamboo 7 below that falls in frame 8, second rocker 3 and flexible brush 6 enclose into one and supply from the pot seedling that falls a seedling section of thick bamboo 7 to pushing away the flexible seedling passageway that falls that passes through when seedling plate 1 moves, and flexible brush 6 and the corresponding increase and decrease of interval along with pushing away seedling plate 1 reciprocating motion of seedling plate 1 on the horizontal direction of pushing away seedling plate 1. When the pot seedlings fall from the seedling falling cylinder 7, the pot seedlings fall to the seedling pushing position where the seedling pushing plate 1 is located through the flexible seedling falling channel, and the pot seedlings are protected by the flexible seedling falling channel to fall in a vertical posture in the process, so that the pot seedlings are prevented from lodging, the transplanting verticality is improved, and the stable reliability of the pot seedlings pushed out by the seedling pushing plate 1 is improved; meanwhile, the flexible brush 6 can not cause hard damage to the pot seedlings, and the damage to the pot seedlings can be greatly reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (10)
1. The utility model provides a rape alms bowl seedling transplanting device which characterized in that: including frame (8), push away seedling board (1), first rocker (2) and second rocker (3), the both ends of first rocker (2) correspond respectively and frame (8) and push away seedling board (1) articulated, the both ends of second rocker (3) correspond respectively and frame (8) and push away seedling board (1) articulated, frame (8), push away seedling board (1), first rocker (2) and second rocker (3) combination form one and allow to push away seedling board (1) reciprocating motion's four-bar linkage, rape alms bowl seedling transplanting device is still including being used for ordering about the drive assembly who pushes away seedling board (1) reciprocating motion.
2. The rape pot seedling transplanting device according to claim 1, wherein: the driving assembly comprises an elastic piece (4) and a cam (5) which is installed on the rack (8) and driven by a driving mechanism to rotate, the elastic piece (4) is connected between the rack (8) and the first rocker (2), and the elastic piece (4) forces the first rocker (2) to abut against the cam (5) so that the first rocker (2) swings in a reciprocating mode when the cam (5) rotates.
3. The rape pot seedling transplanting device according to claim 2, wherein: the connecting line between the two hinge points on the first rocker (2) and the connecting line between the two hinge points on the second rocker (3) are parallel to each other and have the same length.
4. The rape pot seedling transplanting device according to claim 2, wherein: the rotating shaft of the cam (5) is arranged on the frame (8) in a mode of adjusting the installation position through a position adjusting mechanism.
5. The device for transplanting the pot seedlings of rape as claimed in claim 4, wherein: the position adjusting mechanism comprises a mounting seat, a screw rod and an adjusting sliding groove arranged on the rack (8), the screw rod penetrates through the adjusting sliding groove and can move along the adjusting sliding groove, one end of the screw rod is connected with the mounting seat, the other end of the sliding rod is in threaded fit connection with a locking nut which is matched with the mounting seat and clamps the fixed rack (8), and a rotating shaft of the cam (5) is rotatably arranged on the mounting seat.
6. The rape pot seedling transplanting device according to claim 5, wherein: the sliding direction of the screw rod along the adjusting sliding groove is parallel to the extending direction of the first rocking rod (2) when the second rocking rod (3) is vertically arranged.
7. The rape pot seedling transplanting device according to claim 2, wherein: the contour surface of the cam (5) is provided with a constant-speed driving section which forces the first rocker (2) to drive the seedling pushing plate (1) to move at a constant speed so as to push out the pot seedlings.
8. The rape pot seedling transplanting device according to claim 2, wherein: the profile surface of the cam (5) is provided with a quick return driving section which forces the first rocker (2) to carry the seedling pushing plate (1) to return quickly after the seedlings in the pot are pushed out.
9. The rape pot seedling transplanting device according to any one of claims 1 to 8, wherein: the hinge point of the second rocker (3) and the frame (8) is positioned above the hinge point of the second rocker (3) and the seedling pushing plate (1), and the upper part of the second rocker (3) is provided with a seedling dropping cylinder (7) for the dropped pot seedlings to pass through.
10. The rape pot seedling transplanting device of claim 9, wherein: still install flexible brush (6) that are located seedling section of thick bamboo (7) below of falling on frame (8), second rocker (3) and flexible brush (6) enclose into a confession from the alms bowl seedling that falls a seedling section of thick bamboo (7) and to pushing away the flexible seedling passageway that falls that passes through when seedling board (1) moves, flexible brush (6) and the corresponding increase and decrease of interval of pushing away seedling board (1) on the horizontal direction along with pushing away corresponding increase and decrease of seedling board (1) reciprocating motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993919.8A CN110622662A (en) | 2019-10-18 | 2019-10-18 | Rape pot seedling transplanting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993919.8A CN110622662A (en) | 2019-10-18 | 2019-10-18 | Rape pot seedling transplanting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110622662A true CN110622662A (en) | 2019-12-31 |
Family
ID=68976654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910993919.8A Pending CN110622662A (en) | 2019-10-18 | 2019-10-18 | Rape pot seedling transplanting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110622662A (en) |
-
2019
- 2019-10-18 CN CN201910993919.8A patent/CN110622662A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10524411B2 (en) | High-speed transplanting mechanism | |
| US20190014716A1 (en) | High-speed transplanting mechanism having laterally openable/closable duckbill | |
| CN110278749A (en) | A kind of garlic automatic direction regulating control seeder based on machine vision | |
| CN104798513A (en) | Plug tray seedling sorting and transplanting machine | |
| CN210959432U (en) | Rape pot seedling transplanting device | |
| CN112314134A (en) | Automatic seedling taking device | |
| CN110622662A (en) | Rape pot seedling transplanting device | |
| CN102100141B (en) | Seedling-fetching device of pot seedling transplanter planetary gear train | |
| CN113748805A (en) | Sweetleaf chrysanthemum pot body blanket-shaped seedling transplanting device | |
| CN210959431U (en) | Single parallel rod type pot seedling transplanting device | |
| CN201758545U (en) | Seedling taking device for planet gear train of pot seedling transplanting machine | |
| CN110622663A (en) | Single parallel rod type pot seedling transplanting device | |
| CN202210949U (en) | Planetary gear train and connecting bar combined seedling picking mechanism of potted seedling transplanter | |
| CN114208458A (en) | Automatic change equipment of planting seedlings | |
| CN214430095U (en) | Automatic seedling taking device | |
| CN210137606U (en) | Can change travel adjustment device for seeder of planting depth | |
| CN210537384U (en) | Corn planting distance adjusting device | |
| CN113303060A (en) | Multi-row linkage planting device and transplanting machine comprising same | |
| CN108496635B (en) | Mechanism is transplanted to closed chain slider crank combination flowers | |
| CN221203244U (en) | Corn planter with adjustable spacing | |
| CN220044346U (en) | Spraying even greenhouse spraying structure | |
| CN215735745U (en) | Multi-row seeding row spacing synchronous automatic regulating mechanism | |
| CN101828452B (en) | Automatic seeder | |
| CN216905914U (en) | Pot seedling equal-spacing seedling taking and wide-narrow row seedling throwing combined mechanism | |
| CN110881331B (en) | Spherical pruning equipment of shrub type tea tree |
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 |