CN107960177A - A kind of gardens tree planting digging apparatus easy to adjust - Google Patents
A kind of gardens tree planting digging apparatus easy to adjust Download PDFInfo
- Publication number
- CN107960177A CN107960177A CN201711209946.9A CN201711209946A CN107960177A CN 107960177 A CN107960177 A CN 107960177A CN 201711209946 A CN201711209946 A CN 201711209946A CN 107960177 A CN107960177 A CN 107960177A
- Authority
- CN
- China
- Prior art keywords
- lifter plate
- fixed plate
- adjust
- tree planting
- easy
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/04—Machines for making or covering holes for sowing or planting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of gardens tree planting digging apparatus easy to adjust, including fixed plate and lifter plate;The left and right ends of the fixed plate are installed with two racks, and the left and right ends of the lifter plate are slidably mounted on the inner side of two racks;The bottom of the fixed plate opens up fluted, and inside grooves are rotatablely equipped with rotating bar, and two oppositely oriented external screw threads are symmetrically arranged with left and right sides of rotating bar;The lower rotation of the lifter plate is provided with screw rod;The outside of the rack is sequentially installed with dust cleaning case and exhaust fan from top to bottom.The present invention drives lifter plate to move up and down by being provided with the rotating bar of two kinds of different rotation direction screw threads, while sets screw rod to drive drilling rod to move left and right, and is held without operating personnel and bends over to dig pit, and is not used only simple and easy to operate;It is additionally provided with exhaust fan and dust cleaning case absorbs caused dust of digging pit, protects the health of operating personnel.
Description
Technical field
The present invention relates to garden equipment technical field, is specifically a kind of gardens tree planting digging apparatus easy to adjust.
Background technology
In certain region application engineering technology and artistic media, by transforming landform, trees flowers and plants, constructing architecture are planted
The beautiful natural environment formed with approach creation such as arrangement garden roads and condition of strolling about or have a rest, are known as gardens.Gardens include flower garden, residence
Garden, petty street garden, garden, park, botanical garden, zoo etc., with the development of gardens subject, further include Forest Park, landscape name
Win the excursion district and recuperation famous scenic spot of area, nature reserve area or national park.
Need to dig pit before the road of garden by planting tree, be usually manually to be dug with hand-held pit-picker at present
Hole, such worker need to bend over for a long time when digging pit, and such worker easily has a pain in the back, so that the effect of digging pit of worker can be reduced
Rate, at the same time, bends over also to be unfavorable for the adjusting of pit-picker for a long time, it has not been convenient to accurately chooses position of digging pit.
The content of the invention
It is an object of the invention to provide a kind of gardens tree planting digging apparatus easy to adjust, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical solution:
A kind of gardens tree planting digging apparatus easy to adjust, including fixed plate and lifter plate;The left and right ends of the fixed plate
Two racks are installed with, the left and right ends of the lifter plate are slidably mounted on the inner side of two racks, and lifter plate is positioned at solid
The underface of fixed board;The bottom of the fixed plate opens up fluted, and inside grooves are rotatablely equipped with rotating bar, the left and right of rotating bar
Both sides are symmetrically arranged with two oppositely oriented external screw threads, and the bottom of the groove is also slidably fitted with two the first sliding sleeves, and two
A first sliding sleeve is threadedly coupled with the left and right sides of rotating bar respectively;The left and right sides that the fixed plate bottom is located at groove is symmetrical
Two connecting rods are hinged with, the other end of connecting rod is hinged with sliding block, sliding slot, the sliding block are offered at the top of the lifter plate
Basal sliding be installed on sliding slot inside;The bottom of first sliding sleeve is hinged with push rod, the other end and connecting rod of push rod
Upside be hinged;The lower rotation of the lifter plate is provided with screw rod, and the bottom of lifter plate is also slidably fitted with the second sliding sleeve, the
Two sliding sleeves are connected with screw flight;The bottom of second sliding sleeve is installed with electric rotating machine, and the output terminal of electric rotating machine is consolidated
Surely it is connected with drilling rod;The outside of the rack is sequentially installed with dust cleaning case and exhaust fan from top to bottom, and the top of dust cleaning case is set
There is exhaust outlet, air exhaust nozzle is provided with the inside of rack, the air inlet of exhaust fan is connected by the second air hose with air exhaust nozzle, exhaust fan
Exhaust outlet connected by the first air hose with the bottom of dust cleaning case.
As the further scheme of the present invention:The bottom of the rack is provided with self-locking trundle.
As further scheme of the invention:The centre position of the rotating bar is also installed with driven wheel of differential,
Clockwise and anticlockwise motor is installed with the upside of the fixed plate, the output terminal of clockwise and anticlockwise motor is fixedly connected with drive bevel gear,
Drive bevel gear is engaged with driven wheel of differential.
As further scheme of the invention:The right end of the screw rod is also installed with crank.
As further scheme of the invention:The dust cleaning case is internally provided with finer mesh.
As further scheme of the invention:The air inlet of the air exhaust nozzle is provided with strainer.
Compared with prior art, the beneficial effects of the invention are as follows:The present invention is by being provided with two kinds of different rotation direction screw threads
Rotating bar drive lifter plate move up and down, while set screw rod drive drilling rod move left and right, hold and bend over without operating personnel
Dig pit, be not used only simple and easy to operate;It is additionally provided with exhaust fan and dust cleaning case absorbs caused ash of digging pit
Dirt, protects the health of operating personnel.
Brief description of the drawings
Fig. 1 for ease of the gardens tree planting digging apparatus of adjusting structure diagram.
Fig. 2 is for ease of enlarged drawing at A in the gardens tree planting digging apparatus of adjusting.
In figure:1- racks, 2- dust cleaning cases, the first air hoses of 3-, 4- exhaust fans, the second air hoses of 5-, 6- self-locking trundles, 7- pumpings
Mouth, 8- fixed plates, 9- connecting rods, 10- rotating bars, the first sliding sleeves of 11-, 12- push rods, 13- sliding blocks, 14- lifter plates, 15- sliding slots,
16- screw rods, the second sliding sleeves of 17-, 18- electric rotating machines, 19- drilling rods, 20- cranks, 21- clockwise and anticlockwise motors, 22- drive bevel gears,
23- driven wheel of differential.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Please refer to Fig.1~2, in the embodiment of the present invention, a kind of gardens tree planting digging apparatus easy to adjust, including fixation
Plate 8 and lifter plate 14;The left and right ends of the fixed plate 8 are installed with two racks 1, and the bottom of rack 1 is provided with self-locking
Castor 6, so as to the movement of rack 1;The left and right ends of the lifter plate 14 are slidably mounted on the inner side of two racks 1, lifter plate
14 are located at the underface of fixed plate 8;The bottom of the fixed plate 8 opens up fluted, and inside grooves are rotatablely equipped with rotating bar 10,
The left and right sides of rotating bar 10 is symmetrically arranged with two oppositely oriented external screw threads, and the bottom of the groove is also slidably fitted with two
A first sliding sleeve 17, the left and right sides of two the first sliding sleeves 17 respectively with rotating bar 10 are threadedly coupled, and rotating bar 10 turns clockwise
When dynamic, two the first sliding sleeves 17 move toward one another, and when rotating bar 10 rotates counterclockwise, two the first sliding sleeves 17 are backwards to movement;It is described
The centre position of rotating bar 10 is also installed with driven wheel of differential 23, and the upside of the fixed plate 8 is installed with rotating
Motor 21, the output terminal of clockwise and anticlockwise motor 21 are fixedly connected with drive bevel gear 22, drive bevel gear 22 and driven wheel of differential 23
Engagement, drives drive bevel gear 22 to rotate, so as to drive driven wheel of differential 23 to rotate, so as to drive when clockwise and anticlockwise motor 21 rotates
Rotating bar 10 rotates;The left and right sides that 8 bottom of fixed plate is located at groove is symmetrically hinged with two connecting rods 9, connecting rod 9
The other end is hinged with sliding block 13, and the top of the lifter plate 14 offers sliding slot 15, and the basal sliding of the sliding block 13 is installed on
The inside of sliding slot 15;The bottom of first sliding sleeve 11 is hinged with push rod 12, and the other end of push rod 12 is cut with scissors with the upside of connecting rod 9
Connect, drive connecting rod 9 to swing by push rod 12 when two the first sliding sleeves 11 move, so as to drive lifter plate 14 to slide up and down;Institute
The lower rotation for stating lifter plate 14 is provided with screw rod 16, and the bottom of lifter plate 14 is also slidably fitted with the second sliding sleeve 17, and second slides
Set 17 is threadedly coupled with screw rod 16, and the right end of screw rod 16 is also installed with crank 20, crank 20 is rotated, so as to drive screw rod 16
Rotate, so as to drive the second sliding sleeve 17 to move left and right;The bottom of second sliding sleeve 17 is installed with electric rotating machine 18, rotation
The output terminal of motor 18 is fixedly connected with drilling rod 19, to dig pit to ground;The outside of the rack 1 is from top to bottom successively
Dust cleaning case 2 and exhaust fan 4 are installed, dust cleaning case 2 is internally provided with finer mesh, and the top of dust cleaning case 2 is provided with exhaust outlet,
The inner side of rack 1 is provided with air exhaust nozzle 7, and the air inlet of air exhaust nozzle 7 is provided with strainer, and the air inlet of exhaust fan 4 passes through the second wind
Pipe 5 is connected with air exhaust nozzle 7, and the exhaust outlet of exhaust fan 4 is connected by the first air hose 3 with the bottom of dust cleaning case 2, during to dig pit
The dust of generation, which is pumped into dust cleaning case 2, filters discharge.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of gardens tree planting digging apparatus easy to adjust, it is characterised in that including fixed plate(8)And lifter plate(14);
The fixed plate(8)Left and right ends be installed with two racks(1), the lifter plate(14)Left and right ends be slidably installed
In two racks(1)Inner side, lifter plate(14)Positioned at fixed plate(8)Underface;The fixed plate(8)Bottom offer
Groove, inside grooves are rotatablely equipped with rotating bar(10), rotating bar(10)The left and right sides be symmetrically arranged with two it is oppositely oriented
External screw thread, the bottom of the groove is also slidably fitted with two the first sliding sleeves(17), two the first sliding sleeves(17)Respectively with turning
Lever(10)The left and right sides be threadedly coupled;The fixed plate(8)The left and right sides that bottom is located at groove is symmetrically hinged with two
Connecting rod(9), connecting rod(9)The other end be hinged with sliding block(13), the lifter plate(14)Top offer sliding slot(15),
The sliding block(13)Basal sliding be installed on sliding slot(15)Inside;First sliding sleeve(11)Bottom be hinged with push rod
(12), push rod(12)The other end and connecting rod(9)Upside be hinged;The lifter plate(14)Lower rotation screw rod is installed
(16), lifter plate(14)Bottom be also slidably fitted with the second sliding sleeve(17), the second sliding sleeve(17)With screw rod(16)It is threadedly coupled;
Second sliding sleeve(17)Bottom be installed with electric rotating machine(18), electric rotating machine(18)Output terminal be fixedly connected with brill
Bar(19);The rack(1)Outside be sequentially installed with dust cleaning case from top to bottom(2)And exhaust fan(4), dust cleaning case(2)Top
Portion is provided with exhaust outlet, rack(1)Inner side be provided with air exhaust nozzle(7), exhaust fan(4)Air inlet pass through the second air hose(5)
With air exhaust nozzle(7)Connection, exhaust fan(4)Exhaust outlet pass through the first air hose(3)With dust cleaning case(2)Bottom connection.
2. the gardens tree planting digging apparatus according to claim 1 easy to adjust, it is characterised in that the rack(1)
Bottom be provided with self-locking trundle(6).
3. the gardens tree planting digging apparatus according to claim 1 easy to adjust, it is characterised in that the rotating bar
(10)Centre position be also installed with driven wheel of differential(23), the fixed plate(8)Upside be installed with rotating
Motor(21), clockwise and anticlockwise motor(21)Output terminal be fixedly connected with drive bevel gear(22), drive bevel gear(22)With it is driven
Bevel gear(23)Engagement.
4. the gardens tree planting digging apparatus according to claim 1 easy to adjust, it is characterised in that the screw rod(16)
Right end be also installed with crank(20).
5. the gardens tree planting digging apparatus according to claim 1 easy to adjust, it is characterised in that the dust cleaning case
(2)Be internally provided with finer mesh.
6. the gardens tree planting digging apparatus according to claim 1 easy to adjust, it is characterised in that the air exhaust nozzle
(7)Air inlet be provided with strainer.
Priority Applications (1)
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CN201711209946.9A CN107960177A (en) | 2017-11-28 | 2017-11-28 | A kind of gardens tree planting digging apparatus easy to adjust |
Applications Claiming Priority (1)
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CN201711209946.9A CN107960177A (en) | 2017-11-28 | 2017-11-28 | A kind of gardens tree planting digging apparatus easy to adjust |
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CN107960177A true CN107960177A (en) | 2018-04-27 |
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ID=61999073
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CN201711209946.9A Pending CN107960177A (en) | 2017-11-28 | 2017-11-28 | A kind of gardens tree planting digging apparatus easy to adjust |
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Cited By (23)
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CN108633389A (en) * | 2018-05-03 | 2018-10-12 | 魏焰 | A kind of forestry plantation fertilizer apparatus of digging pit |
CN108702895A (en) * | 2018-05-03 | 2018-10-26 | 魏焰 | A kind of adjustable digging apparatus of forestry |
CN108738505A (en) * | 2018-06-14 | 2018-11-06 | 胡学文 | A kind of semi-automatic walk positioning formula forestry digging apparatus |
CN108811551A (en) * | 2018-06-13 | 2018-11-16 | 湖南图强科技开发有限公司 | A kind of forestry plantation loose soil navy barrow |
CN108834452A (en) * | 2018-05-03 | 2018-11-20 | 福建省复新农业科技发展有限公司 | A kind of excellent agricultural loosening device of crushing effect |
CN108834485A (en) * | 2018-06-11 | 2018-11-20 | 苏州睿烁环境科技有限公司 | A kind of agricultural digging apparatus of dismountable hand-rail type of drill bit |
CN108848762A (en) * | 2018-05-30 | 2018-11-23 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of bit location can multidirectional adjustment agricultural digging apparatus |
CN108886918A (en) * | 2018-08-13 | 2018-11-27 | 孙同娟 | A kind of forestry digging apparatus easy to remove and fixed |
CN108907805A (en) * | 2018-08-10 | 2018-11-30 | 广州星引科技有限公司 | A kind of advanced superhigh precision aluminum processing technology equipment |
CN108927549A (en) * | 2018-08-10 | 2018-12-04 | 广州益鸟科技有限公司 | A kind of transformer casing material of high temperature resistant and low temperature |
CN108971562A (en) * | 2018-08-10 | 2018-12-11 | 广州益鸟科技有限公司 | A kind of transformer casing material of modified high temperature resistant and low temperature |
CN108994342A (en) * | 2018-08-10 | 2018-12-14 | 广州星引科技有限公司 | A kind of high-end superhigh precision aluminum processing technology equipment |
CN109047836A (en) * | 2018-08-10 | 2018-12-21 | 佛山林稷机电科技有限公司 | A kind of construction climbing frame equipment |
CN109093146A (en) * | 2018-08-10 | 2018-12-28 | 广州星引科技有限公司 | A kind of full angle digital information superhigh precision aluminum processing technology equipment |
CN109104941A (en) * | 2018-09-04 | 2019-01-01 | 明光市三界镇朝荣家庭农场 | A kind of jujube tree plants the digging apparatus of anti-falling stop soil |
CN109158900A (en) * | 2018-08-10 | 2019-01-08 | 广州益鸟科技有限公司 | A kind of high-end new material equipment |
CN109983867A (en) * | 2019-04-22 | 2019-07-09 | 煜环环境科技有限公司 | A kind of farmland soil modifying Soil tillage improvement machine |
CN110091304A (en) * | 2019-06-10 | 2019-08-06 | 胡天力 | A kind of automatic lotus scooping device |
CN110537401A (en) * | 2019-09-17 | 2019-12-06 | 安徽国防科技职业学院 | Pit digging method of portable variable-diameter surrounding pit digging machine |
CN111955101A (en) * | 2020-09-08 | 2020-11-20 | 李强 | Use convenient earth boring machine for gardens |
CN112354316A (en) * | 2020-11-06 | 2021-02-12 | 中煤建工华南建设有限公司 | Watering dust device for building site |
CN112939389A (en) * | 2021-04-16 | 2021-06-11 | 菏泽学院 | Cow dung solid-liquid separation device for functional liquid fertilizer and use method thereof |
CN113875353A (en) * | 2021-10-13 | 2022-01-04 | 湖南生物机电职业技术学院 | Unmanned tree planter |
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CN206452717U (en) * | 2017-02-21 | 2017-09-01 | 杨国 | A kind of Novel fruit-tree plants fertilizer applicator of digging pit |
CN107135714A (en) * | 2017-06-27 | 2017-09-08 | 陈德忠 | A kind of forestry plantation Digging machine |
CN107225011A (en) * | 2017-08-03 | 2017-10-03 | 深圳柒祁祺商贸有限公司 | A kind of adjustable food examines workbench |
CN107270066A (en) * | 2017-08-10 | 2017-10-20 | 安徽英冉信息咨询有限公司 | A kind of apparatus for placing of projecting apparatus |
CN107327661A (en) * | 2017-07-21 | 2017-11-07 | 黄忠南 | A kind of textile machine support meanss |
CN207573876U (en) * | 2017-11-28 | 2018-07-06 | 中水电第十一工程局(郑州)有限公司 | A kind of gardens tree planting digging apparatus convenient for adjusting |
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CN204602779U (en) * | 2015-04-07 | 2015-09-02 | 浙江亚厦幕墙有限公司 | A kind of concrete drill hole dust collecting installation |
CN206149785U (en) * | 2016-06-26 | 2017-05-10 | 马博磊 | Novel convertible trees are digged pit device |
CN205902393U (en) * | 2016-07-01 | 2017-01-25 | 曹先茂 | Low -residual garden lawn trimming machine can remove dust |
CN106489363A (en) * | 2016-11-18 | 2017-03-15 | 叶浩勇 | A kind of afforestation equipment of digging pit |
CN206356733U (en) * | 2016-11-23 | 2017-07-28 | 苏州瑞日纺织科技有限公司 | A kind of dust exhaust apparatus for carbon dioxide laser rig |
CN206212621U (en) * | 2016-12-01 | 2017-06-06 | 杨航 | A kind of seedling growth pit-picker |
CN206452717U (en) * | 2017-02-21 | 2017-09-01 | 杨国 | A kind of Novel fruit-tree plants fertilizer applicator of digging pit |
CN107135714A (en) * | 2017-06-27 | 2017-09-08 | 陈德忠 | A kind of forestry plantation Digging machine |
CN107327661A (en) * | 2017-07-21 | 2017-11-07 | 黄忠南 | A kind of textile machine support meanss |
CN107225011A (en) * | 2017-08-03 | 2017-10-03 | 深圳柒祁祺商贸有限公司 | A kind of adjustable food examines workbench |
CN107270066A (en) * | 2017-08-10 | 2017-10-20 | 安徽英冉信息咨询有限公司 | A kind of apparatus for placing of projecting apparatus |
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Cited By (25)
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---|---|---|---|---|
CN108633389A (en) * | 2018-05-03 | 2018-10-12 | 魏焰 | A kind of forestry plantation fertilizer apparatus of digging pit |
CN108702895A (en) * | 2018-05-03 | 2018-10-26 | 魏焰 | A kind of adjustable digging apparatus of forestry |
CN108834452A (en) * | 2018-05-03 | 2018-11-20 | 福建省复新农业科技发展有限公司 | A kind of excellent agricultural loosening device of crushing effect |
CN108848762A (en) * | 2018-05-30 | 2018-11-23 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of bit location can multidirectional adjustment agricultural digging apparatus |
CN108834485A (en) * | 2018-06-11 | 2018-11-20 | 苏州睿烁环境科技有限公司 | A kind of agricultural digging apparatus of dismountable hand-rail type of drill bit |
CN108811551A (en) * | 2018-06-13 | 2018-11-16 | 湖南图强科技开发有限公司 | A kind of forestry plantation loose soil navy barrow |
CN108738505A (en) * | 2018-06-14 | 2018-11-06 | 胡学文 | A kind of semi-automatic walk positioning formula forestry digging apparatus |
CN108738505B (en) * | 2018-06-14 | 2021-03-02 | 罗发俊 | Semi-automatic positioning type forestry digging device that moves step |
CN109047836A (en) * | 2018-08-10 | 2018-12-21 | 佛山林稷机电科技有限公司 | A kind of construction climbing frame equipment |
CN108971562A (en) * | 2018-08-10 | 2018-12-11 | 广州益鸟科技有限公司 | A kind of transformer casing material of modified high temperature resistant and low temperature |
CN108994342A (en) * | 2018-08-10 | 2018-12-14 | 广州星引科技有限公司 | A kind of high-end superhigh precision aluminum processing technology equipment |
CN108907805A (en) * | 2018-08-10 | 2018-11-30 | 广州星引科技有限公司 | A kind of advanced superhigh precision aluminum processing technology equipment |
CN109093146A (en) * | 2018-08-10 | 2018-12-28 | 广州星引科技有限公司 | A kind of full angle digital information superhigh precision aluminum processing technology equipment |
CN109158900A (en) * | 2018-08-10 | 2019-01-08 | 广州益鸟科技有限公司 | A kind of high-end new material equipment |
CN108927549A (en) * | 2018-08-10 | 2018-12-04 | 广州益鸟科技有限公司 | A kind of transformer casing material of high temperature resistant and low temperature |
CN108886918A (en) * | 2018-08-13 | 2018-11-27 | 孙同娟 | A kind of forestry digging apparatus easy to remove and fixed |
CN109104941A (en) * | 2018-09-04 | 2019-01-01 | 明光市三界镇朝荣家庭农场 | A kind of jujube tree plants the digging apparatus of anti-falling stop soil |
CN109983867A (en) * | 2019-04-22 | 2019-07-09 | 煜环环境科技有限公司 | A kind of farmland soil modifying Soil tillage improvement machine |
CN110091304A (en) * | 2019-06-10 | 2019-08-06 | 胡天力 | A kind of automatic lotus scooping device |
CN110091304B (en) * | 2019-06-10 | 2020-09-29 | 胡天力 | Automatic drag for lotus root device |
CN110537401A (en) * | 2019-09-17 | 2019-12-06 | 安徽国防科技职业学院 | Pit digging method of portable variable-diameter surrounding pit digging machine |
CN111955101A (en) * | 2020-09-08 | 2020-11-20 | 李强 | Use convenient earth boring machine for gardens |
CN112354316A (en) * | 2020-11-06 | 2021-02-12 | 中煤建工华南建设有限公司 | Watering dust device for building site |
CN112939389A (en) * | 2021-04-16 | 2021-06-11 | 菏泽学院 | Cow dung solid-liquid separation device for functional liquid fertilizer and use method thereof |
CN113875353A (en) * | 2021-10-13 | 2022-01-04 | 湖南生物机电职业技术学院 | Unmanned tree planter |
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Application publication date: 20180427 |
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RJ01 | Rejection of invention patent application after publication |