CN208037754U - Hinged convertible sprinkler with reel board plug structure - Google Patents
Hinged convertible sprinkler with reel board plug structure Download PDFInfo
- Publication number
- CN208037754U CN208037754U CN201820385748.1U CN201820385748U CN208037754U CN 208037754 U CN208037754 U CN 208037754U CN 201820385748 U CN201820385748 U CN 201820385748U CN 208037754 U CN208037754 U CN 208037754U
- Authority
- CN
- China
- Prior art keywords
- plate
- sprinkler
- reel
- component
- backrush
- 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
- 230000003028 elevating effect Effects 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 47
- 230000002262 irrigation Effects 0.000 description 15
- 238000003973 irrigation Methods 0.000 description 15
- 230000008602 contraction Effects 0.000 description 12
- 239000007921 spray Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model discloses a kind of hinged convertible sprinkler with reel board plug structures, including plate and plate elevating control component, plate is set as two pieces, and two pieces plate is left and right symmetrically arranged is fixed with connecting cross beam between the rear end for the plate supporting rack being arranged in rack, two pieces plate；The front end of plate is hingedly mounted on the rear end of plate supporting rack, and one end of plate elevating control component is hingedly installed on plate supporting rack, the other end is hingedly installed on plate；The position that the rollback spacing collision block of sprinkler car is corresponded on the connecting cross beam of plate is equipped with sprinkler car rollback limiting component, and the backrush stopping safety component that controllable reel stops backrush being additionally provided on sprinkler car rollback limiting component.Originally hinged convertible sprinkler with reel board plug structure, it is simple in structure, it can be realized convenient for making and installation maintenance, especially suitable for sprinkler with reel under the premise of realizing the normal function of plate.
Description
Technical field
The utility model is related to a kind of board plug structure of sprinkler with reel, specifically a kind of hinged convertible sprinkler with reel
Board plug structure belongs to sprinkling irrigation equipment equipment technology field.
Background technology
Sprinkling irrigation is that pressure water is sprayed onto in the air using special equipments such as nozzles, forms water droplet and falls on ground spray and filling surface and crop
The irrigation method on surface, irrigation sprinkler are also known as sprayirrigation, sprinkling irrigation unit, that is, special equipment used by spraying.
Reel sprinkling irrigation machine is one kind relatively common in irrigation sprinkler, and sprinkler with reel can irrigate the farmland of large area,
The size that water spray can also be controlled according to nozzle requires the different of sprinkling irrigation water with meeting user.Reel sprinkling irrigation machine
Include usually mainly rack, reel, PE pipes, hydroturbine, gearbox, speed compensation device and sprinkler car, usually needs at work
To utilize the pulling equipments such as tractor or winch the PE water-supply-pipes being wrapped on reel and the spray being connected on PE water-supply-pipes
Head vehicle is hauled out to preset sprinkling irrigation place, is then then turned on Irrigation Pressure penstock, Irrigation Pressure water enters PE water-supply-pipe blowings
The nozzle ejection of head vehicle carries out driving hydroturbine rotation while sprinkling irrigation operation, and hydroturbine drives eddies of water wheel shaft rotation output power
It is passed in retarder, the transmission of reduction of speed rear chain generates larger torque power drive capstan winch rotation, to realize the automatic of PE pipes
Recycling.
The plate of sprinkler with reel is normally located in the rack between sprinkler car and reel, plate be typically to
Sprinkler car lead tilts grafting and is arranged on the ground, and plate generally uses Linear scaling structure, the main function of plate
It is that grafting is stretched out when traction pulls out sprinkler car or PE pipes are recycled in reel backrush on the ground to prevent rack in tractive force or return
It is moved under the action of volume power, on the other hand, in transition state, plate retraction, which also acts as to hold up sprinkler car, is detached from ground
Carrying sprinkler car effect.This traditional board plug structure is generally for protection extension and contraction control component and by extension and contraction control component
It is arranged in the inside of the plate of tubular structure, therefore structure is more complex, also more complex in terms of making and installation maintenance, no matter and
It needs that line channel or through-hole are additionally arranged on plate when being automatically controlled flexible or hydraulically extensible, wiring or piping connection, in turn
More or less the intensity of plate is had an impact；In addition, due to usually having stopped when sprinkler car is held up disengaging ground by plate
Backrush PE pipes, therefore the plate of angled straight lines stretching structure can cause sprinkler car edge when sprinkler car is held up disengaging ground by retraction
Angled straight lines direction is drawn close to reel, and the PE pipes in turn resulting in sprinkler car traction are sent into reel direction, to easily cause reel
On PE pipes relaxation.
Invention content
In view of the above-mentioned problems, the utility model provides a kind of hinged convertible sprinkler with reel board plug structure, it is simple in structure,
It can be realized convenient for making and installation maintenance, especially suitable for sprinkler with reel under the premise of realizing the normal function of plate.
To achieve the above object, this hinged convertible sprinkler with reel board plug structure includes plate, and plate is set as two pieces,
Two pieces plate, which is left and right symmetrically arranged between the rear end for the plate supporting rack being arranged in rack, two pieces plate, is fixed with connection
Crossbeam；
The front end of the plate is hingedly mounted on the rear end of plate supporting rack, hinged convertible sprinkler with reel plate knot
Structure further includes plate elevating control component, and one end of plate elevating control component is hingedly installed on plate supporting rack, other end hinge
It connects and is installed on plate；The position that the rollback spacing collision block of sprinkler car is corresponded on the connecting cross beam of plate is equipped with sprinkler car rollback limit
Component, controllable reel is additionally provided on sprinkler car rollback limiting component stops the backrush of backrush and stop safety component.
Stop a kind of embodiment party of safety component control mode as the utility model plate elevating control component, backrush
Formula, the plate elevating control component are electric screw bars, and it is automatically controlled contact switch that the backrush, which stops safety component, electricity
Dynamic screw rod and automatically controlled contact switch are electrically connected with the controller of sprinkler with reel electric control gear respectively.
Stop another embodiment party of safety component control mode as the utility model plate elevating control component, backrush
Formula, the plate elevating control component is hydraulic cylinder, and it is pilot safety valve that the backrush, which stops safety component, hydraulic cylinder and
Pilot safety valve is connect with the control valve group of sprinkler with reel hydraulic control device respectively.
Compared with prior art, this hinged convertible sprinkler with reel board plug structure using the front end of plate due to hingedly being pacified
The mode of rear end loaded on plate supporting rack is turned over downwards by the flexible realization plate of plate elevating control component along its articulated shaft
Withdrawal is relayed out or is flipped up, not only structure is relatively easy, but also plate elevating control component is disposed entirely within the outer of plate
Making and installation maintenance are convenient in portion；Meanwhile overturning of this hinged convertible sprinkler with reel board plug structure plate make sprinkler car with
Spacing dimension variation between reel is smaller, therefore the amount that the PE pipes of sprinkler car traction are sent into reel direction is also smaller, in turn
The situation that the PE pipes relaxation on reel can dramatically be reduced, especially suitable for sprinkler with reel.
Description of the drawings
Fig. 1 is the structural schematic diagram of chassis Rotary Water turbine drives sprinkler with reel；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the vertical view of Fig. 1；
Fig. 4 is the structural schematic diagram of chassis Rotary Water turbine drives sprinkler with reel rack；
Fig. 5 is the vertical view of Fig. 4.
In figure：1, chassis, 11, chassis slewing equipment, 12, pivoting support, 13, chassis supports component, 14, it is flexible before branch
Support, 2, reel supporting rack, 3, plate supporting rack, 4, vehicle wheel component, 41, wheel supporting beam, 42, wheel, 43, wheel elevating control
Component, 5, plate, 6, reel, 61, annular external toothing, 7, eddies of water wheel drive unit, 71, eddies of water roller box, 72, reel drive speed change
Case.
Specific implementation mode
Below by taking the Rotary Water turbine drives sprinkler with reel of chassis as an example, the utility model is done further in conjunction with attached drawing
Illustrate and (is described below as front using the complete machine lead of chassis Rotary Water turbine drives sprinkler with reel).
As shown in Figure 1 to Figure 3, chassis Rotary Water turbine drives sprinkler with reel includes rack, plate 5, reel 6, PE
Pipe, eddies of water wheel drive unit 7 and sprinkler car.
As shown in Figure 4, Figure 5, the rack includes chassis 1, reel supporting rack 2, plate supporting rack 3 and vehicle wheel component 4.
Chassis 1 is the planar support frame structure of whole symmetrical structure, and support frame structure includes that closing connects
The side bar of frame structure and the supporting beam for being connected to annular frame inside configuration in a ring；The front end of chassis 1 is equipped with to connect and lead
Draw the traction bindiny mechanism of equipment；The bottom of chassis 1 is equipped with chassis slewing equipment 11, and chassis slewing equipment 11 is arranged in rack
Position of centre of gravity, chassis slewing equipment 11 include pivoting support 12 and chassis supports component 13, pivoting support 12 successively from top to bottom
Including inner ring, outer ring and revolution driving, the inner ring of pivoting support 12 is fixedly mounted with chassis 1 to be connected, the outer ring of pivoting support 12
It is fixedly mounted and connects with chassis supports component 13, the revolution driving of pivoting support 12 is fixedly mounted on chassis 1 and pivoting support
12 revolution driving is by the cooperation installation connection of the outer ring of transmission mechanism and pivoting support 12, by controlling returning for pivoting support 12
Relative motion between the inner ring and outer ring of pivoting support 12 may be implemented in the revolution action for turning driving, and chassis supports component 13 is set
There is tabular to support baseplane, in order to ensure that firm support, the area coverage of the support baseplane of chassis supports component 13 are more than
The area coverage of pivoting support 12；The front of chassis 1 is also equipped with flexible front support 14 vertically, and front support 14 of stretching includes front support
Extension and contraction control component, the flexible stretching that flexible front support 14 may be implemented by controlling front support extension and contraction control component support shape
State or retraction transition state.
Reel supporting rack 2 is set as two pieces, and the position that two pieces reel supporting rack 2 corresponds to chassis slewing equipment 11 is symmetrical
It is vertically installed in the planar support frame structure of chassis 1.
Plate supporting rack 3 is set as two pieces, and two pieces plate supporting rack 3 is symmetrical to be fixedly mounted on chassis 1 or reel branch
On support 2, and plate supporting rack 3 rearward stretches out setting.
Vehicle wheel component 4 is set as two pieces, and two pieces vehicle wheel component 4 is left and right symmetrically arranged the bottom rear in chassis 1, wheel group
Part 4 includes wheel supporting beam 41, wheel 42 and wheel elevating control component 43, and the front end of wheel supporting beam 41 and chassis 1 are hinged
Connection, 42 front-rear direction of wheel roll the rear end that setting installation is connected to wheel supporting beam 41, wheel elevating control component 43
One end is connect with reel supporting rack 2 or plate supporting rack 3, the other end and wheel supporting beam 41 connect, and is passed through and is controlled wheel lifting
The flexible lifting that wheel 42 may be implemented of control unit 43, and when wheel elevating control component 43 is entirely retracted to wheel 42 bottom
Horizontal plane where portion is located at the top of the support baseplane of chassis supports component 13, that is, wheel elevating control component 43 contracts completely
Fashionable wheel 42 is in vacant state.
The plate 5 is set as two pieces, and connecting cross beam is fixed between two pieces plate 5, and the front end of plate 5 is hingedly pacified
Mounted in the rear end of plate supporting rack 3, hinged convertible sprinkler with reel board plug structure further includes plate elevating control component, plate
One end of elevating control component is hingedly installed on plate supporting rack 3, the other end and is hingedly installed on plate 5；The connecting cross beam of plate 5
The position of the rollback spacing collision block of upper corresponding sprinkler car is equipped with sprinkler car rollback limiting component, is gone back on sprinkler car rollback limiting component
The backrush for stopping backrush equipped with controllable reel 6 stops safety component.
6 front-rear direction of reel rolls setting and is set up mounted on the top of reel supporting rack 2, volume by bearing
The side plate of disk 6 in left and right directions is equipped with the annular external toothing 61 being arranged concentrically with reel 6.
The PE pipes are wrapped on reel 6, and the shaft core position of input terminal from the reel 6 of PE pipes is pierced by.
The eddies of water wheel drive unit 7 includes eddies of water roller box 71, reel driving gearbox 72；Eddies of water roller box 71 fixes peace
On reel supporting rack 2, eddies of water roller box 71 includes pressure water input port, pressure water output port and is arranged in eddies of water roller box
Internal hydroturbine, the pressure water output port of eddies of water roller box 71 are connected to connection, the water of eddies of water roller box 71 with the input terminal of PE pipes
Turbine includes power output shaft；Reel driving gearbox 72 is fixedly mounted on chassis 1, and it includes power that reel, which drives gearbox 72,
Input shaft and power output shaft, reel drive the eddies of water that the power input shaft of gearbox 72 passes through transmission mechanism and eddies of water roller box 71
The power output axis connection of wheel, reel drive the power output shaft of gearbox 72 to coordinate by transmission mechanism and annular external toothing 61
Connection.
The sprinkler car includes jet nozzle, support wheel and nozzle, and support wheel is mounted on the bottom of jet nozzle, and nozzle is fixed
It is erected on jet nozzle and the input terminal of nozzle is connect with the output end of PE pipes, jet nozzle is equipped with rollback spacing collision block.
Background spirals rotatable hydroturbine driving sprinkler with reel in the transition state that Towed Unit is drawn, and PE pipes are in
The plate elevating control component of the state, plate 5 that are wrapped on reel 6 is stored completely at the state that is entirely retracted to, sprinkler car
In the state being suspended on plate 5, wheel elevating control component 43 is in stretching state, the front support of flexible front support 14 is stretched
Control unit is in and is entirely retracted to state, and wheel 42 is in the holding state for falling and being supported in ground at this time, by controlling vehicle
The stroke of wheel elevating control component 43 may be implemented to change the distance between chassis 1 and ground.
Background spiral rotatable hydroturbine driving sprinkler with reel be towed to field in use, be operated first it is flexible before
The front support extension and contraction control component stretching of support 14 makes the front of chassis 1 be firmly supported, you can removes pulling equipment；Then it grasps
Make front support extension and contraction control component and the retraction simultaneously of wheel elevating control component 43 of flexible front support 14, chassis 1 is under entirety
Drop is supported in ground up to the support baseplane of chassis supports component 13 is firm, and wheel 42, which is in, at this time is located at chassis supports portion
Vacant state, flexible front support 14 above the support baseplane of part 13 are in the vacant state for being detached from ground, chassis supports portion
Part 13 is in the state of carrying main screw lift completely；Then it is returned according to the revolution driving of sprinkling irrigation direction controlling pivoting support 12
Rotation is made, since chassis supports component 13 is in the state of carrying main screw lift completely, the revolution driving of pivoting support 12
Revolution is that outer ring is motionless, inner ring is rotated relative to outer ring when acting, chassis 1 hold in the palm carry reel supporting rack 2, plate supporting rack 3,
Vehicle wheel component 4, plate 5, reel 6, eddies of water wheel drive unit 7 and sprinkler car are integrally revolved relative to chassis supports component 13
Turn, stops the revolution action of the revolution driving of pivoting support 12 after sprinkler car face sprays direction；Then operation plate 5 is slotting
The stretching of plate elevating control component make plate 5 downwardly turned over around its hinge joint release and it is firm be plugged in ground, plate 5 downwardly turns over
During drive sprinkler car be down to ground；After sprinkler car is moved to the sprinkling irrigation position of setting, by the pressure of eddies of water roller box 71
Water input port connect with pressure water source hydrant and opens hydrant, and pressure water enters PE and manages and from the nozzle of sprinkler car
Spray and realize sprinkling irrigation operation, spray operation while a part of pressure water enter the eddies of water that eddies of water roller box 71 drives eddies of water roller box 71
Wheel rotation simultaneously exports power from the power output shaft of hydroturbine, and the power output shaft of the hydroturbine of eddies of water roller box 71 drives through reel
The power input shaft of gearbox 72, the power output shaft of reel driving gearbox 72 drive the annular rotation of external toothing 61 to make reel
PE pipes are recycled in 6 backrush；When sprinkler car retracts to collision block the backrush stopping safety component for touching plate 5, backrush stops Ministry of State Security
The pressure water input of part cut-out into eddies of water roller box 71 makes hydroturbine stopping output power, the reel 6 of eddies of water roller box 71 stop back
Volume, closing the plate elevating control component retraction of operation plate 5 after hydrant, so that plate 5 along its hinge joint is flipped up withdrawal de-
From the ground, sprinkler car by the connecting cross beam between two pieces plate 5 is lifted out ground by plate 5 during being flipped up withdrawal
Face, the revolution driving action of pivoting support 12 is then controlled according to the distracted position of pulling equipment makes the traction of chassis 1 connect machine
Structure face pulling equipment, front support extension and contraction control component and the wheel elevating control component 43 for then operating front support 14 of stretching are same
When stretch out so that chassis 1 is risen overally, the support baseplane of chassis supports component 13 is detached from ground, wheel 42 and flexible front support 14
It is supported in ground, the front support that front support 14 of stretching is controlled after pulling equipment is connect with the traction bindiny mechanism of chassis 1 is stretched
Control unit retraction, you can carry out transition.
As the revolution driving of pivoting support 12, front support extension and contraction control component, wheel elevating control component 43, plate liter
A kind of embodiment of the control modes of components such as control unit, backrush stopping safety component dropping, and the control mode of each component is adopted
Electricity consumption prosecutor formula, that is, the revolution driving of the pivoting support 12 is slewing motor, the front support extension and contraction control portion
Part, wheel elevating control component 43, plate elevating control component are electric screw bars, the pressure water of the eddies of water roller box 71
Input port is equipped with electric control valve, and it is automatically controlled contact switch that the backrush, which stops safety component, and background spirals the rotatable eddies of water
Wheel drive sprinkler with reel further includes electric control gear, and electric control gear includes electric power loop and controller, controller respectively with revolution
The electricity of motor, front support extension and contraction control component, wheel elevating control component 43, plate elevating control component, eddies of water roller box 71
Control valve, the electrical connection of automatically controlled contact switch.
As the revolution driving of pivoting support 12, front support extension and contraction control component, wheel elevating control component 43, plate liter
Control unit drops, backrush stops the another embodiment of the control modes of components such as safety component, the control mode of each component
Using hydraulic control mode, that is, the revolution driving of the pivoting support 12 is rotary fluid motor, and the front support is flexible
Control unit, wheel elevating control component 43, plate elevating control component are hydraulic cylinders, the pressure of the eddies of water roller box 71
Water input port is equipped with fluid-control valve, and it is pilot safety valve that the backrush, which stops safety component, and background spirals the rotatable eddies of water
Wheel drive sprinkler with reel further includes hydraulic control device, and hydraulic control device includes hydraulic power unit, and hydraulic power unit includes driving
Power source, hydraulic pump, hydraulic control valve group and hydraulic oil container, driving power source connect with hydraulic pump, the input terminal of hydraulic pump and
Hydraulic oil container connects, and the output end of hydraulic pump connect with hydraulic control valve group, hydraulic control valve group respectively by fluid pressure line and
Rotary fluid motor, front support extension and contraction control component, wheel elevating control component 43, plate elevating control component, eddies of water roller box
71 fluid-control valve, pilot safety valve connection.
This hinged convertible sprinkler with reel board plug structure using the front end of plate 5 due to being hingedly installed on plate supporting rack
The mode of 3 rear end downwardly turns over releasing or upwards by the flexible realization plate 5 of plate elevating control component along its articulated shaft
Overturning is withdrawn, and not only structure is relatively easy, but also plate elevating control component is disposed entirely within the outside of plate 5, convenient for making
And installation maintenance；Meanwhile the overturning of this hinged convertible sprinkler with reel board plug structure plate 5 makes between sprinkler car and reel 6
Spacing dimension variation it is smaller, therefore the amount be sent into reel direction of PE pipes of sprinkler car traction is also smaller, and then can very big journey
Degree ground reduces the situation of the PE pipes relaxation on reel, especially suitable for sprinkler with reel.
Claims (3)
1. a kind of hinged convertible sprinkler with reel board plug structure, including plate (5), plate (5) are set as two pieces, two pieces plate
(5) it is left and right symmetrically arranged the company of being fixed between the rear end for the plate supporting rack (3) being arranged in rack, two pieces plate (5)
Connect crossbeam；It is characterized in that,
The front end of the plate (5) is hingedly mounted on the rear end of plate supporting rack (3), hinged convertible sprinkler with reel plate
Structure further includes plate elevating control component, and one end of plate elevating control component is hingedly installed on plate supporting rack (3), another
End is hingedly installed on plate (5)；The position that the rollback spacing collision block of sprinkler car is corresponded on the connecting cross beam of plate (5) is equipped with nozzle
Vehicle rollback limiting component, controllable reel (6) is additionally provided on sprinkler car rollback limiting component stops the backrush of backrush and stop safety
Component.
2. hinged convertible sprinkler with reel board plug structure according to claim 1, which is characterized in that the plate liter
Drop control unit is electric screw bar, and it is automatically controlled contact switch that the backrush, which stops safety component, electric screw bar and automatically controlled
Contact switch is electrically connected with the controller of sprinkler with reel electric control gear respectively.
3. hinged convertible sprinkler with reel board plug structure according to claim 1, which is characterized in that the plate liter
It is hydraulic cylinder to drop control unit, and it is pilot safety valve, hydraulic cylinder and pilot safety valve difference that the backrush, which stops safety component,
It is connect with the control valve group of sprinkler with reel hydraulic control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385748.1U CN208037754U (en) | 2018-03-21 | 2018-03-21 | Hinged convertible sprinkler with reel board plug structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385748.1U CN208037754U (en) | 2018-03-21 | 2018-03-21 | Hinged convertible sprinkler with reel board plug structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208037754U true CN208037754U (en) | 2018-11-02 |
Family
ID=63947449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820385748.1U Expired - Fee Related CN208037754U (en) | 2018-03-21 | 2018-03-21 | Hinged convertible sprinkler with reel board plug structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208037754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275550A (en) * | 2018-11-30 | 2019-01-29 | 山东农业工程学院 | Efficient water-fertilizer-pesticide integration irrigation sprinkler |
-
2018
- 2018-03-21 CN CN201820385748.1U patent/CN208037754U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109275550A (en) * | 2018-11-30 | 2019-01-29 | 山东农业工程学院 | Efficient water-fertilizer-pesticide integration irrigation sprinkler |
| CN109275550B (en) * | 2018-11-30 | 2021-04-06 | 山东农业工程学院 | High-efficiency water-fertilizer-pesticide integrated sprinkling machine |
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| 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: 20181102 |