CN109804780A - One kind cutting flat the adjustable trees seed collection device in face and application method - Google Patents
One kind cutting flat the adjustable trees seed collection device in face and application method Download PDFInfo
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- CN109804780A CN109804780A CN201910264481.XA CN201910264481A CN109804780A CN 109804780 A CN109804780 A CN 109804780A CN 201910264481 A CN201910264481 A CN 201910264481A CN 109804780 A CN109804780 A CN 109804780A
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Abstract
The invention discloses one kind to cut flat the adjustable trees seed collection device in face and application method, and the adjustable trees seed collection device in face that cuts flat mainly includes cutting mechanism, lever tensile machine, shaft and film funnel collector；The cutting mechanism mainly includes head, movable pulley, level-one drawstring, second level drawstring, main blade, auxiliary-blade, pin shaft II, leading block；The lever tensile machine mainly includes lever, L-type trigger, support arm；The support arm is fixedly mounted on the side of lever, and the front end of support arm is equipped with pin shaft I.The present invention solves the problems, such as to lack the dedicated tool that gathers tree seeds in forest seedling nursing production, a kind of simple, light, safe and efficient, practical tree seed collector is provided for the production of forestry harvest tree species, mitigate labor intensity of workers, safety and working efficiency are improved, preferably produces and services for forest seedling nursing.
Description
Technical field
The present invention relates to one kind to cut flat the adjustable trees seed collection device in face and application method, belongs to plant species acquisition skill in fact
Art field.
Background technique
In the business process of forest land, in order to guarantee the sustainable production of forest, a large amount of trees seed will be acquired every year,
So that nursery base is grown saplings.Since the seed kind grain of common forest such as poplar, willow, elm, birch etc. is small, easily disperses after falling off, adopt
It is time-consuming and laborious when collection, so being usually directly to acquire seed from forest before seed shedding, but the kind of forest concentrates in fact
In infructescence and plant is higher, and being typically only capable to manually climb tree carries out tree species picking, and seed collecting of manually climbing tree is one very arduous
And the work of high risk, how to realize easily and efficiently acquisition trees seed, to mitigate labor intensity of workers, improves safety
It is a problem urgently to be resolved in current production of forestry with working efficiency.
It is flexible that the utility model patent that Chinese Patent Application No. is CN201620872877.4 discloses a kind of visible rotating
Fruit picking device, including Shears for picking fruit, visual device, telescopic rod, receipts fruit net, direction controller and rotating handles, it is characterised in that institute
It states the flexible fruit picking device of visible rotating and also sets up rotary connector and coil buckle, camera is arranged in rotary connector top, stretches
Bar top side, which is provided with, receives fruit net, middle part setting display screen, lower part setting rotating handles and direction controller, outside coil pulley
Coil and coil buckle is arranged in side.The patent can make scissors up and down by the rotary connector being arranged at the top of contraction pole
Rotation, meets the handling situations of fruit tree complexity；Coil buckle solves the problems, such as that contracting bar can not be used in the fruit picking device；Receive fruit net
It is set as double concave type, the requirement worked continuously can be met, improves working efficiency, but the adjusting angle of its scissors is limited in -40 °
To between 40 °, being unable to reach 90 ° enables scissors horizontal shear, is not suitable for seed or fruit that acquisition is grown straight down.
Summary of the invention
It is an object of the invention to be directed to the deficiencies in the prior art, proposes one kind and cut flat the adjustable trees kind in face
Sub- collector and application method provide a kind of simple, light, safe and efficient, practical Forest tree seed for the production of forestry harvest tree species
Sub- collector.
To achieve the goals above, the invention adopts the following technical scheme:
One kind cutting flat the adjustable trees seed collection device in face, mainly includes cutting mechanism, shaft, lever tensile machine and film
Funnel collector；The cutting mechanism mainly include head, movable pulley, level-one drawstring, second level drawstring, main blade, auxiliary-blade,
Pin shaft II, leading block；The head be it is hollow, the lower end of head is provided with internal screw thread, at left and right sides of the upper end of head respectively
It is provided with left support and right support；The tail end of the main blade is fixed on the outside of the upper end of left support by locking nut, described
Auxiliary-blade passes through pin shaft II and main blade cross-articulation；One end of the second level drawstring is fixedly connected with the upper end of right support, and two
The other end of grade drawstring is fixedly connected after successively bypassing movable pulley, leading block with the tail end of auxiliary-blade；The leading block position
In movable pulley oblique upper and be mounted on the inside of the upper end of left support, the leading block can have horizontal position appropriate along axial direction
It moves, is used for anti-anti-avulsion rope；The lower end of the movable pulley is fixedly connected by lock-screw with one end of level-one drawstring, level-one drawstring
The other end sequentially pass through head, shaft access lever tensile machine；The lever tensile machine mainly includes lever, L-type
Trigger, support arm；The support arm is fixedly mounted on the side of lever, and the front end of support arm is equipped with pin shaft I；The L-type
It is set in the middle part of trigger on pin shaft I；The lever be it is hollow, the upper end of lever is provided with internal screw thread, and the lower end of lever is vertical
It is provided with a L-type support；A reel is arranged in the L-type support, the level-one drawstring accessed from cutting mechanism is passed through and held
Handle is wrapped on reel, and level-one drawstring is fixedly connected by lock-screw with one end of L-type trigger.
Further, above-mentioned cutting mechanism further includes scissors reset spring, the scissors reset spring be torque spring and
It is fixed on one end of pin shaft II, an end of the scissors reset spring is fixedly connected with auxiliary-blade, scissors reset spring
Another end is fixedly connected with main blade.
Further, above-mentioned lever tensile machine further includes trigger reset spring, and the trigger reset spring is torque spring
And it is fixed on one end of pin shaft I, an end of the trigger reset spring is fixedly connected with L-type trigger, and trigger resets bullet
Another end of spring is fixedly connected with support arm.
Further, above-mentioned shaft includes first bar, last bar and at least one intermediate bar, the head bar, last bar and intermediate bar
It is hollow stem and both ends are all provided with external screw thread, between the head bar and intermediate bar, last bar and intermediate bar and each intermediate bar
By connecting sleeve connection, the connection sleeve is cannulated sleeve and both ends are provided with internal screw thread；The head bar and lever pulling force
The lever of mechanism is connected through a screw thread, and the head of the end bar and cutting mechanism is connected through a screw thread, and the intermediate bar has more piece
It is spare, it can need to increase and decrease according to shaft physical length.
Further, above-mentioned film funnel collector is made of iron ring and film funnel, and the side of the iron ring is provided with button
Ring, the retaining ring covers in head, and is fixed by fastening bolt；The pipeline of the film funnel extends to ground.
Further, above-mentioned lever and connection sleeve outer surface be equipped with ridge design, can prevent operation lever and
Hand skids when connecting sleeve.
The above-mentioned application method for cutting flat the adjustable trees seed collection device in face comprising following steps:
(1) assembly and adjustment: the length of shaft and the quantity of intermediate bar are determined according to the height of trees first, then will successively be held
Handle, first bar, intermediate bar, last bar, head are connected and fixed by connecting sleeve, then level-one drawstring are pulled out from reel and is successively worn
It crosses lever, shaft, head to fix by lock-screw and movable pulley, while with lock-screw by level-one drawstring and L-type trigger
One end is fixed；Secondly the locking nut for unclamping main blade tail end rotates scissors to leading block side, at 0 °~90 °
Shearing inclination within the scope of adjust scissors shear plane, then screw locking nut, drawn inclined second level with leading block
Rope support is lived, to keep the working condition of movable pulley constant；Then the retaining ring of film funnel collector is covered at head, and
Rotation adjustment film funnel is fixed after being located at immediately below scissors with fastening bolt, then simultaneously by the film pipeline expansion of film funnel
And the outlet of film pipeline is placed in seed receptacle；
(2) Collecting operation: can be acquired operation after assembly and adjustment, and worker holds shaft cutting picking shears on the other hand first
The knife edge of a knife lift to by collect seed son or fruit carpopodium at, then hold L-type trigger and lever with the other hand, pull L-type trigger to
Lower pulling level-one drawstring pulls movable pulley to drive second level drawstring by level-one drawstring, and second level drawstring pulls auxiliary-blade again, makes main blade
Seed or fruit are cut with auxiliary-blade closure shearing, seed or fruit soon fall into film funnel, and are fallen by film pipeline
Enter in seed receptacle.
Compared with prior art, the technical program has the advantages that
1. scissor cut face of the invention can arbitrarily be adjusted within the scope of 0 °~90 °, various trees seed collection features are adapted to
It is required that；Threaded connection sleeve connection is used between each rod piece of shaft, it is convenient for disassembly and assembly, it can arbitrarily add and subtract the quantity of intermediate bar
The different length of shaft is obtained, working depth requirement is adapted to.
It drives scissors operation convenient and strength-saving 2. the present invention generates drawstring pulling force using trigger lever mechanism, and first uses
Level-one drawstring pulls movable pulley, then drives second level drawstring to drive the setting of scissors by movable pulley, can make up L-type trigger end
The deficiency of displacement guarantees that drawstring can pull down auxiliary-blade in place, so that scissors blades adequate closure be made to realize shearing.
3. the present invention is provided with the rope jack being made of L-type support and reel in lever lower end, can be with store cords
Rope and the folding and unfolding for needing to carry out drawstring or rope according to shaft physical length.
4. film funnel of the invention is plastic products, funnel pipe is extended in surface vessels, and scissors collects
Seed fruit fall into funnel and then fallen directly into surface vessels along funnel pipe first, guarantee that funnel is not subject to seed always
Fruit weight can make harvesting seed work lighter.
It is forestry harvest tree species 5. the present invention just solves the problems, such as to lack the dedicated tool that gathers tree seeds in forest seedling nursing production
Production provides a kind of simple, light, safe and efficient, practical tree seed collector, preferably produces and takes for forest seedling nursing
Business.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 be one embodiment of the invention shearing inclination in use be 90 ° when cutting mechanism top view.
Appended drawing reference: 1- main blade, 2- auxiliary-blade, 3- locking nut, 4- left support, 5- iron ring, 6- film funnel, 7-L
Type trigger, 8- trigger reset spring, 9- support arm, 10- pin shaft I, 11- reel, 12- lever, 13- head bar, 14- connection sleeve,
15- intermediate bar, the end 16- bar, 17- head, 18- level-one drawstring, 19- movable pulley, 20- right support, 21- leading block, 22- second level
Drawstring, 23- scissors reset spring, 24- pin shaft II, 25-L type bracket, 26- retaining ring.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited in embodiment.Under
The specific experiment condition and method being not specified in column embodiment, used technological means are usually that those skilled in the art institute is ripe
The conventional means known.
Embodiment 1:
As shown in Fig. 1~2, it mainly includes cutting mechanism, shaft, lever that one kind, which cutting flat the adjustable trees seed collection device in face,
Tensile machine and film funnel collector；
The cutting mechanism mainly includes head 17, movable pulley 19, level-one drawstring 18, second level drawstring 22, main blade 1, secondary knife
Piece 2, pin shaft II 24, leading block 21；The head 17 be it is hollow, the lower end of head 17 is provided with internal screw thread, head 17 it is upper
The end left and right sides is respectively arranged with left support 4 and right support 20；The tail end of the main blade 1 is fixed on a left side by locking nut 3
On the outside of the upper end of bracket 4, the auxiliary-blade 2 passes through pin shaft II 24 and 1 cross-articulation of main blade；One end of the second level drawstring 22
Be fixedly connected with the upper end of right support 20, the other end of second level drawstring 22 successively bypass after movable pulley 19, leading block 21 with pair
The tail end of blade 2 is fixedly connected；The leading block 21 is located at the oblique upper of movable pulley 19 and is mounted in the upper end of left support 4
Side；The lower end of the movable pulley 19 is fixedly connected by lock-screw with one end of level-one drawstring 18, level-one drawstring 18 it is another
End sequentially passes through head 17, shaft access lever tensile machine；The cutting mechanism further includes scissors reset spring 23, described to cut
Knife reset spring 23 is torque spring and is fixed on one end of pin shaft II 24, an end of the scissors reset spring 23 with
Auxiliary-blade 2 is fixedly connected, another end of scissors reset spring 23 is fixedly connected with main blade 1；
The lever tensile machine mainly includes lever 12, L-type trigger 7, support arm 9；The fixed installation of support arm 9 is in one's hands
The side of handle 12, and the front end of support arm 9 is equipped with pin shaft I 10；The middle part of the L-type trigger 7 is set on pin shaft I 10；Institute
State lever 12 be it is hollow, the upper end of lever 12 is provided with internal screw thread, and the lower end of lever 12 is vertically arranged with a L-type support 25；
A reel 11 is arranged in the L-type support 25, the level-one drawstring 18 accessed from cutting mechanism passes through lever 12 and is wrapped in volume
On cylinder 11, and level-one drawstring 18 is fixedly connected by lock-screw with one end of L-type trigger 7；The lever tensile machine is also
Including trigger reset spring 8, the trigger reset spring 8 is torque spring and the one end for being fixed on pin shaft I 10, the trigger
One end of reset spring 8 is fixedly connected with L-type trigger 7, another end of trigger reset spring 8 and support arm 9 are fixed
Connection；The outer surface of the lever 12 is equipped with ridge design；
The shaft includes first bar 13, last bar 16 and at least one intermediate bar 15, the head bar 13, last bar 16 and intermediate bar 15
It is hollow stem and both ends are all provided with external screw thread, the head bar 13 and intermediate bar 15, last bar 16 and intermediate bar 15 and each centre
It is connected by connection sleeve 14 between bar 15, the connection sleeve 14 is cannulated sleeve and both ends are provided with internal screw thread, described
The outer surface for connecting sleeve 14 is equipped with ridge design；The head bar 13 and the lever 12 of lever tensile machine are connected by screw thread
It connects, the end bar 16 and the head 17 of cutting mechanism are connected through a screw thread, and the intermediate bar 15 has that more piece is spare, can be according to shaft
Physical length needs to increase and decrease.
The film funnel collector is made of iron ring 5 and film funnel 6, and the side of the iron ring 5 is provided with retaining ring 26,
26 sets of the retaining ring is fixed in head 17, and through fastening bolt；The pipeline of the film funnel 6 extends to ground.
The above-mentioned application method for cutting flat the adjustable trees seed collection device in face comprising following steps:
(1) assembly and adjustment: determining the length of shaft and the quantity of intermediate bar 15 according to the height of trees first, then successively will
Lever 12, first bar 13, intermediate bar 15, last bar 16, head 17 are connected and fixed by connecting sleeve 14, then by level-one drawstring 18 from volume
It is fixed by lock-screw and movable pulley 19 that lever 12, shaft, head 17 are pulled out and sequentially passed through on cylinder 11, while using locking screw
Nail fixes level-one drawstring 18 and one end of L-type trigger 7；Secondly the locking nut 3 of 1 tail end of main blade is unclamped, as shown in figure 1 arrow
It is shown to rotate scissors to leading block side, the shear plane of scissors is adjusted within the scope of 0 °~90 ° of shearing inclination,
Then locking nut 3 is screwed, is lived inclined 22 support of second level drawstring with leading block 21, to keep the work shape of movable pulley 19
State is constant；Then it by 26 sets of the retaining ring of film funnel collector at head, and rotates adjustment film funnel 6 and is being located at scissors just
It is fixed behind lower section with fastening bolt, the expansion of film pipeline and the outlet of film pipeline of film funnel 6 is then placed in seed
In container；
(2) Collecting operation: can be acquired operation after assembly and adjustment, and worker holds shaft cutting picking shears on the other hand first
The knife edge of a knife is lifted to the carpopodium of collected seed son or fruit, is then held L-type trigger 7 and lever 12 with the other hand, is pulled L-type trigger
7 pull downward on level-one drawstring 18, pull movable pulley 19 to drive second level drawstring 22 by level-one drawstring 18, second level drawstring 22 pulls pair again
Blade 2 makes main blade 1 and auxiliary-blade 2 be closed shearing and cuts seed or fruit, and seed or fruit soon fall into film funnel 6,
And it is fallen into seed receptacle by film pipeline.
The invention is not limited to above embodiment, those skilled in the art are without prejudice to spirit of that invention
Under the premise of can also make equivalent deformation or replacement, these equivalent variation or replacement are all contained in the claim of this application and are limited
In the range of.
Claims (7)
- It mainly include cutting mechanism, shaft, lever tensile machine and film 1. one kind cuts flat the adjustable trees seed collection device in face Funnel collector, it is characterised in that:The cutting mechanism mainly includes head (17), movable pulley (19), level-one drawstring (18), second level drawstring (22), operator Piece (1), auxiliary-blade (2), pin shaft II (24), leading block (21)；The head (17) be it is hollow, the lower end of head (17) is opened There is internal screw thread, is respectively arranged with left support (4) and right support (20) at left and right sides of the upper end of head (17)；The main blade (1) Tail end be fixed on the outside of the upper end of left support (4) by locking nut (3), the auxiliary-blade (2) by pin shaft II (24) with Main blade (1) cross-articulation；One end of the second level drawstring (22) is fixedly connected with the upper end of right support (20), second level drawstring (22) the other end successively bypasses movable pulley (19), leading block (21) is fixedly connected with the tail end of auxiliary-blade (2) afterwards；It is described to lead It is located at the oblique upper of movable pulley (19) to pulley (21) and is mounted on the inside of the upper end of left support (4)；The movable pulley (19) Lower end is fixedly connected by lock-screw with one end of level-one drawstring (18), and the other end of level-one drawstring (18) sequentially passes through head (17), shaft accesses lever tensile machine；The lever tensile machine mainly includes lever (12), L-type trigger (7), support arm (9)；The support arm (9) is fixed It is mounted on the side of lever (12), and the front end of support arm (9) is equipped with pin shaft I (10)；The middle part of the L-type trigger (7) covers It is located on pin shaft I (10)；The lever (12) be it is hollow, the upper end of lever (12) is provided with internal screw thread, the lower end of lever (12) It is vertically arranged with a L-type support (25)；It is arranged with a reel (11) on the L-type support (25), is accessed from cutting mechanism Level-one drawstring (18) pass through lever (12) be wrapped on reel (11), and level-one drawstring (18) pass through lock-screw and L-type One end of trigger (7) is fixedly connected.
- 2. according to claim 1 cut flat the adjustable trees seed collection device in face, it is characterised in that: the cutting mechanism is also Including scissors reset spring (23), the scissors reset spring (23) is torque spring and is fixed on the one of pin shaft II (24) End, an end of the scissors reset spring (23) is fixedly connected with auxiliary-blade (2), scissors reset spring (23) another End is fixedly connected with main blade (1).
- 3. according to claim 1 cut flat the adjustable trees seed collection device in face, it is characterised in that: the lever puller system Structure further includes trigger reset spring (8), and the trigger reset spring (8) is torque spring and is fixed on the one of pin shaft I (10) End, an end of the trigger reset spring (8) is fixedly connected with L-type trigger (7), trigger reset spring (8) another End is fixedly connected with support arm (9).
- 4. according to any one of claims 1 to 3 cut flat the adjustable trees seed collection device in face, it is characterised in that: The shaft includes first bar (13), last bar (16) and at least one intermediate bar (15), the head bar (13), last bar (16) and in Between bar (15) be hollow stem and both ends are all provided with external screw thread, the head bar (13) and intermediate bar (15), last bar (16) and centre By connection sleeve (14) connection between bar (15) and each intermediate bar (15), the connection sleeve (14) for cannulated sleeve and Both ends are provided with internal screw thread；The head bar (13) and the lever (12) of lever tensile machine are connected through a screw thread, the end bar (16) it is connected through a screw thread with the head of cutting mechanism (17), the intermediate bar (15) has that more piece is spare, can be according to shaft reality Length needs to increase and decrease.
- 5. according to claim 4 cut flat the adjustable trees seed collection device in face, it is characterised in that: the film funnel is received Storage is made of iron ring (5) and film funnel (6), and the side of the iron ring (5) is provided with retaining ring (26), retaining ring (26) set On head (17), and fixed by fastening bolt；The pipeline of the film funnel (6) extends to ground.
- 6. according to claim 4 cut flat the adjustable trees seed collection device in face, it is characterised in that: the lever (12) Ridge design is equipped with the outer surface of connection sleeve (14).
- 7. a kind of application method for cutting flat the adjustable trees seed collection device in face as claimed in claim 5, it is characterised in that: its Include the following steps:(1) assembly and adjustment: the length of shaft and the quantity of intermediate bar (15) are determined according to the height of trees first, then successively Lever (12), first bar (13), intermediate bar (15), last bar (16), head (17) are connected and fixed by connecting sleeve (14), then will Level-one drawstring (18) pulls out and is sequentially passed through from reel (11) lever (12), shaft, head (17) by lock-screw and moves Pulley (19) is fixed, while being fixed level-one drawstring (18) and one end of L-type trigger (7) with lock-screw；Secondly operator is unclamped The locking nut (3) of piece (1) tail end rotates scissors to leading block (21) side, in 0 °~90 ° of shearing inclination model The shear plane for enclosing interior adjustment scissors, then screws locking nut (3), with leading block (21) by inclined second level drawstring (21) Support is lived, to keep the working condition of movable pulley (19) constant；Then the retaining ring (26) of film funnel collector is covered in head Place, and rotate after adjustment film funnel (6) is located at immediately below scissors and fixed with fastening bolt, then by film funnel (6) Film pipeline is unfolded and the outlet of film pipeline is placed in seed receptacle；(2) Collecting operation: can be acquired operation after assembly and adjustment, and worker holds shaft cutting picking shears on the other hand first The knife edge of a knife is lifted to the carpopodium of collected seed son or fruit, is then held L-type trigger (7) and lever (12) with the other hand, is pulled L-type Trigger (7) pulls downward on level-one drawstring (18), pulls movable pulley (19) to drive second level drawstring (22) by level-one drawstring (18), second level Drawstring (22) pulls auxiliary-blade (2) again, so that main blade (1) and auxiliary-blade (2) is closed shearing and cuts seed or fruit, seed or Fruit soon falls into film funnel (6), and is fallen into seed receptacle by film pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264481.XA CN109804780A (en) | 2019-04-03 | 2019-04-03 | One kind cutting flat the adjustable trees seed collection device in face and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910264481.XA CN109804780A (en) | 2019-04-03 | 2019-04-03 | One kind cutting flat the adjustable trees seed collection device in face and application method |
Publications (1)
| Publication Number | Publication Date |
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| CN109804780A true CN109804780A (en) | 2019-05-28 |
Family
ID=66611309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910264481.XA Pending CN109804780A (en) | 2019-04-03 | 2019-04-03 | One kind cutting flat the adjustable trees seed collection device in face and application method |
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| Country | Link |
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| CN (1) | CN109804780A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110278771A (en) * | 2019-07-20 | 2019-09-27 | 徐州盛斗士生物科技有限公司 | Hidden-type Dysosma versipellis presets formula fruit harvesting and uproots reversed weight compensating speed carwash |
| CN112369204A (en) * | 2020-11-30 | 2021-02-19 | 山东大学 | Tea leaf collecting device and method |
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| CN209693485U (en) * | 2019-04-03 | 2019-11-29 | 中国林业科学研究院热带林业实验中心 | A kind of light tree species picking shears capable of reversing |
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| CN2233162Y (en) * | 1995-08-17 | 1996-08-21 | 王子玺 | Multi-purpose fruit tree shears |
| CN2239703Y (en) * | 1995-10-05 | 1996-11-13 | 沈水霖 | Angle-changeable high-level shears |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110278771A (en) * | 2019-07-20 | 2019-09-27 | 徐州盛斗士生物科技有限公司 | Hidden-type Dysosma versipellis presets formula fruit harvesting and uproots reversed weight compensating speed carwash |
| CN112369204A (en) * | 2020-11-30 | 2021-02-19 | 山东大学 | Tea leaf collecting device and method |
| CN112369204B (en) * | 2020-11-30 | 2021-10-22 | 山东大学 | Tea leaf collecting device and method |
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Inventor after: Liu Shirong Inventor after: Niu Changhai Inventor after: Ming Angang Inventor after: Diao Hailin Inventor after: Chen Dongcheng Inventor after: Su Jianmiao Inventor after: Lao Qingxiang Inventor before: Liu Shirong Inventor before: Diao Hailin Inventor before: Niu Changhai Inventor before: Lao Qingxiang Inventor before: Su Jianmiao Inventor before: Chen Dongcheng Inventor before: Ming Angang |