CN207427818U - Intelligent lotus root digging harvester - Google Patents
Intelligent lotus root digging harvester Download PDFInfo
- Publication number
- CN207427818U CN207427818U CN201721013193.XU CN201721013193U CN207427818U CN 207427818 U CN207427818 U CN 207427818U CN 201721013193 U CN201721013193 U CN 201721013193U CN 207427818 U CN207427818 U CN 207427818U
- Authority
- CN
- China
- Prior art keywords
- water
- floating body
- lotus root
- root digging
- adjustable shelf
- 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.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of intelligent lotus root digging harvesters, including controller, floating body, it is fixed at pumping water device that is on floating body and being connected respectively with controller communication, water level sensing mechanism, and scouring mechanism, the scouring mechanism includes the adjustable shelf that opposite floating body driven moves up and down, the collector pipe for being fixedly connected with the adjustable shelf and being connected with the water outlet of the pumping water device, multiple flush pipes connected with the collector pipe, the water outlet direction of the flush pipe is rear ramp or the diagonally forward of opposite floating body to realize sliding for floating body by water outlet reaction force.The intelligent lotus root digging harvester of the utility model, it senses water level depth by water level sensing mechanism and scouring mechanism is automatically controlled according to the depth and be moved downward to set depth, the height of adjust automatically water outlet, it realizes the adaptivity to the different lotus field depth of waters, realizes automating, being intelligent for lifting gear adjusting.
Description
Technical field
The utility model is related to agricultural machinery technological field, more particularly to a kind of intelligent lotus root digging harvester.
Background technology
At present, developing due to China's Lotus Industry, the relevant unit of lotus root digging harvester research and development is also being on the increase, market
Also present some lotus root digging harvesters.But there are machine construction heaviness, job insecurity, lotus root damage rate height, effects for most lotus root digging harvester products
The problems such as rate is low, cost is also high, and most of lotus root digging harvester product is to excavate lake lotus root (i.e. the lotus field depth of water is more than 200mm)
It is main, it is not suitable for the harvesting of knob shallow water field lotus root.
Chinese patent CN 205961850U disclose a kind of New lotus root digging harvester, including body；It is equipped with below the body floating
Ship；The body is equipped with water pump, and the water inlet of water pump is connected with water inlet pipe, and the end of water inlet pipe is equipped with pulp water filter；Institute
The water outlet for stating water pump is equipped with outlet pipe, and the end of outlet pipe is connected with ejecting device；Driving nozzle is provided on the body
The control stick that device moves up and down.
But above-mentioned lotus root digging harvester adjusts inconvenient there are water collector height, engine failure rate is high, inconvenient, intelligent
The problems such as poor.
Utility model content
The purpose of this utility model is to be directed to technological deficiency in the prior art, and provides a kind of intelligent lotus root digging harvester.
The another object of the utility model is to provide a kind of control method, and nationality makes lotus root digging harvester to realize one-touch startup
There is very big progress in terms of ease for operation and intelligence.
Technical solution is used by realize the purpose of this utility model：
A kind of intelligence lotus root digging harvester, including controller, floating body is fixed on floating body and connects respectively with controller communication
The pumping water device connect, water level sensing mechanism and scouring mechanism, the scouring mechanism include moving down on opposite floating body driven
Dynamic adjustable shelf, the collector pipe for being fixedly connected with the adjustable shelf and being connected with the water outlet of the pumping water device are multiple
The flush pipe connected with the collector pipe, the water outlet direction of the flush pipe be rear ramp or the diagonally forward of opposite floating body with
Sliding for floating body is realized by water outlet reaction force.
The floating body end is fixedly installed locating rack, and the adjustable shelf is arranged on the locating rack and described
Adjustable shelf and the locating rack between be provided with guiding driving mechanism to realize described move up and down.
The guiding driving mechanism is including the sleeve being arranged on locating rack, the guide rod being correspondingly arranged on adjustable shelf,
The screw rod for being arranged in parallel with the guide rod and being rotatably connected with the adjustable shelf and the spiral shell being correspondingly arranged on fixed frame
Mother, the screw rod are rotated by lifting motor or handwheel driving.
The pumping water device includes the engine linked with the controller communication, connects with the driving engine
The eddy current type water pump connect, the water inlet side of the water pump are provided with trash rack, and the impeller axle of the water pump is pierced by described
Trash rack and rubbing blade is fixedly installed in end.
Grooved hole is formed in the middle part of floating body, the water inlet of the water pump is positioned in the slot, the water inlet of water pump
Mouth side is provided with water level sensor.
The gear-box being fixedly connected with the water pump is further included, water seal mechanism is provided in the housing of the water pump,
The water seal mechanism includes being arranged on rotary packing ring in impeller axle, be set in the impeller axle and with it is described dynamic close
Seal ring holds the stationary seal ring of contact, outer sleeve is provided on the transmission shaft between the impeller of gear-box and housing, in outer sleeve
It is provided with leakage sensor.
The pumping water device is provided with manual control or the clutch being connected with the controller communication.
The clutch includes handle, two levers being sequentially connected in series with the handle through linkage rope, Yi Jiyou
The clutch of the lever driving.
A kind of control method of intelligence lotus root digging harvester, comprises the following steps,
1) elder generation's self-test when starting, self-test is disconnected by rear clutch and starts pumping water device, after predetermined condition is reached
Clutch control connection power；
2) water level sensing mechanism senses water level depth and adjustable shelf is controlled to be moved downward to predetermined depth；
3) flush pipe water spray is rinsed formula and digs lotus root while realize from walking.
Oneself state and water pump bottom of the self-test step including detection pumping water device have anhydrous.
Compared with prior art, the beneficial effects of the utility model are：
The intelligent lotus root digging harvester of the utility model senses water level depth by water level sensing mechanism and is controlled automatically according to the depth
Scouring mechanism processed is moved downward to set depth, and the height of adjust automatically water outlet is realized to the adaptive of the different lotus field depth of waters
Property, realize automating, being intelligent for lifting gear adjusting.
Description of the drawings
Fig. 1 show the structure diagram of the intelligent lotus root digging harvester of the utility model.
Fig. 2 show the explosion state schematic diagram of Fig. 1.
Fig. 3 show bottom substance schematic diagram shown in FIG. 1；
Fig. 4 show back side view shown in FIG. 1；
Fig. 5 show the structure diagram of water pump；
Fig. 6 show water seal mechanism schematic diagram.
Fig. 7 show handle type clutch configuration schematic diagram.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
As shown in the figure, the kind intelligence lotus root digging harvester of the utility model, including controller, floating body 1 is fixed on floating body
Pumping water device 2, the water level sensing mechanism and scouring mechanism, the scouring mechanism 3 linked with the controller communication is wrapped
Include the adjustable shelf 32 that opposite floating body driven moves up and down, be fixedly connected with the adjustable shelf and with the pumping water device
The horizontal collector pipe 33 of water outlet connection, it is multiple to connect and be vertically arranged and lower end is provided with rushing for nozzle with the collector pipe
Brush pipe 34, the water outlet direction of the flush pipe be opposite floating body rear ramp or/and diagonally forward with by water outlet reaction force
Realize sliding for floating body, i.e. while pool bottom sludge is washed open by current realization, by the reaction force of current for before floating body
Row provides power, realizes self-service slide.Wherein, to realize rear ramp water outlet, the side being obliquely installed can be used in the flush pipe
Flush pipe certainly, can also be vertically arranged and can equally be realized in the nozzle for washing away bottom of the tube setting towards tiltedly rear water spray above-mentioned by formula
Purpose.Wherein, water spraying direction can be used all designs towards the super diagonally forward part of rear ramp setting or part towards rear ramp,
Using two groups of water outlet directions, it can be achieved that rinsing twice, flushing effect is improved, prevents from being capped situation again after once washing away.
The intelligent lotus root digging harvester of the utility model senses water level depth by water level sensing mechanism and is controlled automatically according to the depth
Scouring mechanism processed is moved downward to set depth, and the height of adjust automatically water outlet is realized to the adaptive of the different lotus field depth of waters
Property, realize automating, being intelligent for lifting gear adjusting.
Wherein, ultrasonic sensor sensing water level depth can be used in the water level sensing mechanism, and the ultrasonic wave passes
Sensor is arranged on floating body, on fixed frame 31 or adjustable shelf, meanwhile, it is intelligent further to be promoted, in the adjustable shelf
Or the touch panel that can be in contact with water-bed mud face can be also set on fixed frame, pressure sensor, institute are provided on the touch panel
The touch panel stated is moved up and down by realizations such as leadscrew-nut mechanism or linear motors until pressure sensor by electric or hand
Predetermined pressure is sensed, mellowness is judged by the difference of touch panel outreach and the depth of water, that is, realizes and is matched somebody with somebody by pressure sensor
It closes ultrasonic wave sensor to evaluate and test the mellowness of water-bed soil, by the detection of the mellowness to water-bed soil, repair in real time
The actual height and discharge pressure of positive water outlet improve and dig lotus root effect, naturally it is also possible to by selected different soil type into
Data input is actually to control the displacement distance of adjustable shelf after correcting ultrasonic wave sensing water depth under line.Specifically, in work
The mechanisms such as guide cylinder in moving frame are set, touch panel is sent out into fixed range downward vertically using push-and-pull pincers and are contacted with water-bed mud face,
The height of floating shelf is carried out further to correct to realize to different mud surface hardness by the digital independent to pressure sensor
Impact soil formula dig lotus root.
As one of specific embodiment, the floating body tail end is fixedly installed locating rack 31, the positioning
Top of the trellis is provided with bar to manipulate, and the controller is contained within babinet 30 and is fixed on locating rack,
Manipulation when, the hand steered bar of operator can convenient control controller, moreover, by impact water reaction force can realize from
It helps and slides, reduce hand labor intensity, the adjustable shelf 32 can be up or down arranged on fixed frame 31, the work
Guiding driving mechanism is provided between moving frame and the locating rack with realize it is described move up and down, specifically, described leads
The sleeve for including being arranged on locating rack to driving mechanism, the guide rod being correspondingly arranged on adjustable shelf are parallel with the guide rod
Setting and the screw rod being fixedly connected rotatable with the adjustable shelf and the nut being correspondingly arranged on fixed frame, the spiral shell
Female or screw rod can realize lifting by lifting motor or handwheel driving.It is described move up and down can be it is vertical move up and down or
Person diagonally moves up and down.By lifting motor bolt and nut is driven then to realize moving up and down for adjustable shelf, it can real-time basis
Water level carries out the adjustment of flush pipe lower end water outlet height.
Specifically, the diesel type that the pumping water device 2 includes being fixed at by damping device on floating body starts
Machine 21, the eddy current type water pump 22 being connected with the engine by belt transmission, wherein, grooved hole, institute are formed in the middle part of floating body
The axial water inlet for the water pump stated is positioned in the slot and is directly intake with carrying out the water inlet of water pump cover, described
The water outlet of water pump realize pumping of the water to collector pipe from holding the water-supply-pipe 23 in the slot, it is finally scattered through collector pipe
The impact for carrying out soil is sprayed to each flush pipe, wherein, the water inlet side of the water pump is provided with trash rack 24, described
The impeller axle of water pump, which is pierced by the trash rack and is fixedly installed in end, rubs blade 25.Trip can be used in the floating body
Boat form designs, and both sides use cavate floating material, are connected as one the floating material of both sides using the connecting plate at both ends, and front end uses
Triangular design forms fore, and rear end uses bridge-type connection to ensure its stability, and intermediate passage is to form the slot,
Meanwhile can also be set in the slot and turn to blade etc., which can directly be manipulated by people, also can be with the control
Device processed controllably connects, and is automatically controlled by realizations such as the remote controls to controller.
Complete machine vibrations and noise can be reduced using damping device, while certain protective effect is played to power unit, led to
The filter net type trash rack 24 mounted on 22 pump case bottom of water pump is crossed, the sundries such as the larger cauline leaf of lotus field inner volume can be filtered,
And it rubs blade 25 and can be shredded the larger cauline leaf sundries cut-out being adsorbed onto on trash rack to not by rotary motion
Influence the size of water pump normal operation, it is ensured that water inlet is smooth, the blocking at trash rack is avoided, so as to fulfill the guarantor to water pump
Shield, can also make complete machine safer, reliable.It is using notch design, the appearance such as the water inlet of water pump and rubbing blade is embedding wherein, energy
It effectively prevents from surprisingly touching, while in notch forepart grid etc. can also be set to prevent large volume sundries from entering.
Pump shaft is set with rubbing blade coaxial linkage, simplifies modular construction, and the two is run simultaneously, and reduces electronics
The failure that may be brought is controlled, meanwhile, it can be realized to water pump by the torque protection of gear-box or clutch and rub blade
Synchronous protection.
Wherein, further to promote operational effect, the gear-box 26 being fixedly connected with the water pump is further included, utilizes tooth
Roller box can be carried out slowing down and increase square, it can be achieved that the conversion in power transmission direction, improve current conveying capacity, the water pump
Housing in be provided with water seal mechanism, the water seal mechanism includes the rotary packing ring 41 being arranged in impeller axle, is set in institute
The stationary seal ring 42 of contact is held in the impeller axle stated and with the rotary packing ring, the stationary seal ring can fluctuate ground
And be hermetically set in base sleeve 43, the base sleeve by part impeller axis and the bearing of impeller axle etc. every shield wherein, it is described
The spring the sealing ring and rotary packing ring to be compressed is arranged in base sleeve, is set on the contact surface of the stationary seal ring
Carborundum sealant is equipped with, alloy sealant layers are provided on the rotary packing ring, such as alloy abrasion resistant steel is made, described is dynamic
Sealing ring and the sealing surface of accurate seal ring seal the opening of the base sleeve.Nationality is to realize the monoblock type of gear-box and water pump
Sealing.Outer sleeve is provided between the impeller of gear-box and housing, leakage sensor is provided in outer sleeve, when the water seal
Mechanism prevents from further equipment being caused to damage there are that during leak, can sense in time and carry out alert process.
Be driven using gear-box, at the same in water pump carry out water seal design, effectively avoid water enter water pump bearing and
Gear-box, while increase leakage sensor in outer sleeve, it can effectively be monitored, gear-box caused by preventing leak damages
Evil.Meanwhile for prevent it is anhydrous start the damage that is brought to water pump rotary cutting apparatus and water seal mechanism, the floating body bottom is provided with
Water level sensor, only when floating body is in water, can be at least covered with water at water seal mechanism could start, and avoid overheating at water seal
Caused destruction.
Meanwhile be protection equipment, the pumping water device be provided with manual control or be connected with the controller communication from
Close mechanism.The input shaft side of gear-box is provided with the clutch being connected with the controller communication as mentioned.Described
Clutch includes handle or micromachine, and two are sequentially connected in series through linkage rope with the motion end of the handle or micromachine
Lever, the clutch that the lever directly drives.Clutch is realized by the action of handle or the winding of micromachine
Action, using two levers can realize steering increase square, in small space realize transmission, reduce to space requirement.Certainly, at this
Also electromagnetic control type or the clutch of other structures form may be selected.
Preferably, it is realization overall intelligence control, further includes the gearbox sensor being placed on gear-box, it can
With fluid surplus in detection case body, reach setting limit value and alarm, play reminding effect, gear-box is made to obtain maintenance dimension in time
Shield, extends its service life.And upper gear case is provided with respirator, plays what is improved breathing freely inside gear-box and radiate
Effect is conducive to improve the running environment of gear, improves its service life.And add on the engine fuel sensor and
Engine oil sensor is set by controller and controls the time for replacing machine oil, in the case where lacking more than setting time or machine oil,
Engine is by auto extinguishing；It detects that amount of fuel is very few in fuel sensor, when reaching warning value, has alarm signal.Pass through
More than two realize to the defencive functions of engine.
The control method of the intelligent lotus root digging harvester of the utility model, comprises the following steps,
1) elder generation's self-test when starting, self-test is disconnected by rear clutch and starts pumping water device, after predetermined condition is reached
Clutch control connection power；The self-test step includes the oneself state of detection pumping water device and floating body bottom whether there is
Water, while No starting is equally understood when occurring situations such as fuel oil, machine oil or water seal mechanism leak and corresponding alarm is provided
Information to be investigated,
2) water level sensing mechanism senses water level depth and adjustable shelf is controlled to be moved downward to predetermined depth,
3) flush pipe water spray is rinsed formula dig lotus root simultaneously realize from walk, operator can help described in bar into
The control in scanning frequency degree, direction etc..Meanwhile be to realize control to walking, can be also provided on floating body engine driving or
It is similar with existing Ship Structure by battery-driven steering paddle and walking blade etc., it is not reinflated herein to repeat.
, it can be achieved that one-touch clean boot, when startup, carries out necessary safe self-test, keeps away for the control method of the utility model
Exempt from secondary damage, and its, by the control to clutch, when the non-loaded startup of engine, avoided large impact to engine
Influence, when reach Rational Rotation Speed, such as 2500 rpms when plug into again into action edge, moreover, by wireless with controller
Communication can realize that remote control type operates, and be aided with GPS positioning etc., realize fully automatic operation, greatly reduce control cost, solve
It puts manually.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (7)
1. a kind of intelligence lotus root digging harvester, which is characterized in that including controller, floating body, be fixed at it is on floating body and respectively with control
The pumping water device of device communication connection processed, water level sensing mechanism and scouring mechanism, the scouring mechanism include driven opposite
The adjustable shelf that floating body moves up and down, the collection for being fixedly connected with the adjustable shelf and being connected with the water outlet of the pumping water device
Water pipe, multiple flush pipes connected with the collector pipe, the water outlet direction of the flush pipe are the rear ramp of opposite floating body
Or diagonally forward is with sliding by water outlet reaction force realization floating body；The pumping water device includes and the controller communication
The engine of connection, the eddy current type water pump being connected with the driving engine, the water inlet side of the water pump be provided with into
Water grid, the impeller axle of the water pump are pierced by the trash rack and rubbing blade are fixedly installed in end.
2. intelligence lotus root digging harvester as described in claim 1, which is characterized in that the floating body end is fixedly installed locating rack,
The adjustable shelf is arranged on the locating rack and guiding driving is provided between the adjustable shelf and the locating rack
Mechanism is to realize described move up and down.
3. intelligence lotus root digging harvester as claimed in claim 2, which is characterized in that the guiding driving mechanism includes being arranged on positioning
Sleeve on frame, the guide rod being correspondingly arranged on adjustable shelf are arranged in parallel with the guide rod and can be revolved with the adjustable shelf
The nut for turning the screw rod of connection and being correspondingly arranged on fixed frame, the screw rod are rotated by lifting motor or handwheel driving.
4. intelligence lotus root digging harvester as described in claim 1, which is characterized in that grooved hole is formed in the middle part of floating body, the water pump
Water inlet is positioned in the slot, and the water inlet side of water pump is provided with water level sensor.
5. intelligence lotus root digging harvester as claimed in claim 4, which is characterized in that further include the gear being fixedly connected with the water pump
Case, water seal mechanism is provided in the housing of the water pump, and the water seal mechanism includes the dynamic sealing being arranged in impeller axle
Ring is set in the impeller axle and the leaf of the stationary seal ring of contact, gear-box and housing is held with the rotary packing ring
Outer sleeve is provided on transmission shaft between wheel, leakage sensor is provided in outer sleeve.
6. intelligence lotus root digging harvester as described in claim 1, which is characterized in that the pumping water device be provided with manual control or with it is described
Controller communication connection clutch.
7. intelligence lotus root digging harvester as claimed in claim 6, which is characterized in that the clutch includes handle, and described
Two levers that handle is sequentially connected in series through linkage rope and the clutch driven by the lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013193.XU CN207427818U (en) | 2017-08-14 | 2017-08-14 | Intelligent lotus root digging harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721013193.XU CN207427818U (en) | 2017-08-14 | 2017-08-14 | Intelligent lotus root digging harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207427818U true CN207427818U (en) | 2018-06-01 |
Family
ID=62301835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721013193.XU Expired - Fee Related CN207427818U (en) | 2017-08-14 | 2017-08-14 | Intelligent lotus root digging harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207427818U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108702915A (en) * | 2018-08-11 | 2018-10-26 | 华中农业大学 | A kind of walk certainly can steering-type lotus root digging harvester |
| CN109379966A (en) * | 2017-08-14 | 2019-02-26 | 宋加龙 | Intelligent lotus root digging harvester and control method |
| CN113016335A (en) * | 2021-03-08 | 2021-06-25 | 兰志勇 | A pasture and water cleaning device for rural river course |
| CN113711761A (en) * | 2020-05-25 | 2021-11-30 | 浙江清华长三角研究院 | Novel unmanned remote control lotus root digging machine |
-
2017
- 2017-08-14 CN CN201721013193.XU patent/CN207427818U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109379966A (en) * | 2017-08-14 | 2019-02-26 | 宋加龙 | Intelligent lotus root digging harvester and control method |
| CN108702915A (en) * | 2018-08-11 | 2018-10-26 | 华中农业大学 | A kind of walk certainly can steering-type lotus root digging harvester |
| CN108702915B (en) * | 2018-08-11 | 2024-03-26 | 华中农业大学 | Self-propelled steerable lotus root digging machine |
| CN113711761A (en) * | 2020-05-25 | 2021-11-30 | 浙江清华长三角研究院 | Novel unmanned remote control lotus root digging machine |
| CN113016335A (en) * | 2021-03-08 | 2021-06-25 | 兰志勇 | A pasture and water cleaning device for rural river course |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207427818U (en) | Intelligent lotus root digging harvester | |
| CN109526354A (en) | Remote control type lotus root digging harvester device people and control method | |
| CN207427838U (en) | Preceding driving steering-type lotus root digging harvester device people | |
| CN209276511U (en) | Garbage-compressing handles biogas generator | |
| CN109379966A (en) | Intelligent lotus root digging harvester and control method | |
| CN106955031A (en) | A kind of domestic intelligent automatic thin-pancake maker | |
| CN206699167U (en) | A kind of eco-pond in landscape design | |
| CN207427836U (en) | There is the lotus root digging harvester of harvesting | |
| CN207652986U (en) | Remote control type lotus root digging harvester device people | |
| CN109451903A (en) | A kind of equipment of soil remediation | |
| CN207201345U (en) | The pumping water device of intelligent lotus root digging harvester | |
| CN207427817U (en) | The flushing device of intelligent lotus root digging harvester | |
| CN109526373A (en) | The horizontal lotus root digging harvester device people of the flat axis of assisted diversion formula multi-cylinder and control method | |
| CN202809588U (en) | Cleaning boat for cleaning rubbish floating on water | |
| CN111042052B (en) | Flood control flood discharge device based on image communication | |
| CN207427837U (en) | The horizontal lotus root digging harvester device people of the flat axis of assisted diversion formula multi-cylinder | |
| CN108502942A (en) | Energy-saving sewage treatment equipment | |
| CN107602712A (en) | A kind of Starch Production raw material cleaning device | |
| CN209577730U (en) | A kind of soil remediation medicament filling apparatus | |
| CN207427819U (en) | Lotus-root digging equipment based on cloud computing | |
| CN107460857A (en) | A kind of power station water inlet garbage cleaning device | |
| CN109526374A (en) | Lotus root digging harvester and control method with harvesting function | |
| CN208669566U (en) | A kind of stainless steel water pump | |
| CN207573924U (en) | Lotus root digging harvester | |
| CN207573922U (en) | Lotus root digging harvester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20190814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |