CN220457910U - Water-retaining agent, fertilizer are application apparatus in coordination - Google Patents
Water-retaining agent, fertilizer are application apparatus in coordination Download PDFInfo
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- CN220457910U CN220457910U CN202320802619.9U CN202320802619U CN220457910U CN 220457910 U CN220457910 U CN 220457910U CN 202320802619 U CN202320802619 U CN 202320802619U CN 220457910 U CN220457910 U CN 220457910U
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 32
- 238000005507 spraying Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000002689 soil Substances 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000003971 tillage Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 230000004720 fertilization Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of agricultural mechanical equipment, and discloses a water-retaining agent and fertilizer cooperative application device. The device comprises a rectangular vehicle plate, wherein walking units are arranged on two opposite sides of the width direction of the vehicle plate, and a ploughing unit, a spraying unit and a soil pressing wheel are sequentially arranged at the bottom of the vehicle plate from front to back along the length direction of the vehicle plate; the top of the vehicle plate is sequentially provided with a pushing handle, a power supply device, a motor I and a mixing unit from back to front along the length direction of the vehicle plate, and the top of the power supply device is fixedly provided with a PLC controller. The water-retaining agent and fertilizer cooperative application device solves the problem that the existing fertilizer applicator does not have the function of mixing the fertilizer and the water-retaining agent while applying fertilizer, so that the labor loss caused by secondary application is required; the requirements of different mixed liquid demands in different areas can be met; the fertilizing operation can be performed in some rugged farmlands, so that the application range of the device is increased, and the application limitation is reduced.
Description
Technical Field
The utility model belongs to the technical field of agricultural machinery equipment, and particularly relates to a water-retaining agent and fertilizer cooperative application device.
Background
The water-retaining agent and fertilizer synergistic application technology is also called as a water-fertilizer integrated technology, and refers to a novel agricultural technology integrating irrigation and fertilizer application. The water-retaining agent and fertilizer are cooperatively applied by means of a pressure system (or terrain fall), the water-retaining agent and fertilizer are blended into a mixed solution according to the soil nutrient content and the fertilizer requirement rule and characteristics of the crop types, and then are uniformly, stably and quantitatively conveyed to the crop root system growth area in a drip irrigation pipe, a drip head, a drip arrow or a spray head mode, so that the main root system soil is kept loose and the proper water content and fertilizer amount are realized.
The existing water retention agent in agriculture is used by spraying the water retention agent once and then spraying the fertilizer once, so that the additional cost of secondary application is caused, and the cost is greatly increased for large-area cultivated lands. The existing fertilizer applicator on the market is only suitable for water-soluble fertilizer machines, although the fertilizer applicator can also mix the water-retaining agent with the fertilizer for reuse, but the water-retaining agent must be applied in a stirring state, otherwise the water-retaining agent is precipitated in the bottom of the fertilizer applicator, so that the water-retaining agent and the fertilizer are unevenly mixed in the spraying process, the water-retaining agent is more for a while, the fertilizer is more, and the stirring intensity is required to be increased in the fertilizer applicator for a while, but the existing fertilizer applicator does not have the stirring intensity, and the existing fertilizer applicator generally needs to be independently mixed, liquid is taken in later period, and then the water-fertilizer integrated benefit is greatly reduced by adopting the application mode.
In summary, the problem that the fertilizer and the water-retaining agent cannot be synchronously applied exists in the prior art.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide a water-retaining agent and fertilizer cooperative application device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a water-retaining agent and fertilizer cooperative application device comprises a rectangular vehicle plate, wherein walking units are arranged on two opposite sides of the width direction of the vehicle plate, and a ploughing unit and a spraying unit are sequentially arranged at the bottom of the vehicle plate from front to back along the length direction of the vehicle plate; the top of the vehicle plate is sequentially provided with a pushing handle, a power supply device, a motor I and a mixing unit from back to front along the length direction, and the top of the power supply device is fixedly provided with a PLC controller;
the walking unit comprises two crawler belt assemblies arranged on two opposite sides of the width direction of the vehicle plate, and each crawler belt assembly comprises crawler belt rear wheels, crawler belt front wheels and crawler belts arranged between the crawler belt rear wheels and the crawler belt front wheels at intervals; a driving shaft is connected between the two crawler rear wheels of the two crawler assemblies, and the driving shaft is in transmission connection with a motor I;
the spraying unit comprises a limiting rod, a reciprocating screw rod, a moving module, a spraying nozzle and two first vehicle-mounted plates, wherein the first vehicle-mounted plates are arranged on two opposite sides of the width direction of the bottom of the vehicle plate, the limiting rod and the reciprocating screw rod are respectively arranged between the first vehicle-mounted plates in a penetrating manner and are positioned above the reciprocating screw rod, two holes respectively matched with the limiting rod and the reciprocating screw rod are formed in the moving module, and the moving module is sleeved on the limiting rod and the reciprocating screw rod at the same time; the bottom of the mobile module is fixedly connected with the spraying nozzle; one end of the reciprocating screw rod is provided with a driven wheel;
the tillage unit comprises a rotating shaft and two vehicle-mounted plates II, the two vehicle-mounted plates II are arranged on two opposite sides of the width direction of the bottom of the vehicle plate, the rotating shaft is arranged between the two vehicle-mounted plates II in a penetrating manner, a tillage harrow is fixedly arranged on the outer wall of the rotating shaft, a driving wheel is arranged at one end of the rotating shaft, and a driving belt is arranged between the driving wheel and a driven wheel; a supporting plate is fixedly arranged on the outer side of the bottom of the vehicle-mounted plate II, a motor II is fixedly arranged on the supporting plate, and the output end of the motor II is connected with the driving wheel;
the mixing unit comprises a mixing box, a motor III is fixedly arranged at the top of the mixing box, a partition plate is arranged in the mixing box to divide the mixing box into two cavities with small upper parts and large lower parts, the lower cavity is a mixing chamber, and the output part of the motor III is positioned in the upper cavity; the stirring device comprises a stirring shaft which is vertically arranged, the top end of the stirring shaft is connected with the output shaft of the motor III, the other end of the stirring shaft extends to the bottom of the mixing chamber, a plurality of connecting rods are vertically and fixedly arranged on the stirring shaft at intervals, and two spiral blades which are mutually reverse spiral are fixedly arranged on the connecting rods, namely one spiral blade is a positive spiral blade, and the other spiral blade is a reverse spiral blade; the top of the mixing chamber is provided with a feed inlet, the bottom of the mixing chamber is provided with a discharge outlet, the discharge outlet is connected with a liquid pump, the liquid pump is connected with a transmission pipe, a through groove matched with the transmission pipe is formed in the vehicle plate, the transmission pipe stretches into the through groove, the other end of the transmission pipe is connected with a hose, and the other end of the hose is connected with a spraying nozzle;
the central axes of the driving shaft, the limiting rod, the reciprocating screw rod, the soil pressing wheel and the rotating shaft are parallel to each other and the width direction of the vehicle plate, and the first motor, the second motor, the third motor and the liquid pump are respectively and simultaneously electrically connected with the power supply device and the PLC controller.
Preferably, in order to facilitate compaction of the land after the water-retaining agent-fertilizer mixture is applied, sufficient penetration of the water-retaining agent-fertilizer mixture is ensured, and a soil pressing wheel is arranged at the bottom of the truck plate at the rear position of the spraying unit, and the bottom of the soil pressing wheel is flush with the bottom of the crawler belt assembly.
Preferably, in order to facilitate feeding and discharging, the feeding port is a bevel box type, and the discharging port is a cylindrical type.
Preferably, in order to facilitate the real-time observation of the volume of the mixed liquid in the mixing chamber, an observation window is arranged on the side wall of the mixing chamber, and a scale corresponding to the position of the observation window is arranged on the inner wall of the mixing chamber.
In the utility model, the connection relation between the motor I, the driving shaft and the crawler belt component and the connection relation between the motor I, the motor II, the motor III, the liquid pump, the power supply device and the PLC are all operated according to the prior art, the power supply device (a storage battery and a lithium battery can be used for providing power for the motor I, the motor II, the motor III and the liquid pump, and the PLC is used for controlling the starting and the closing of the motor I, the motor II, the motor III and the liquid pump.
The beneficial effects are that:
(1) According to the water-retaining agent and fertilizer cooperative application device, the mixing degree of the water-soluble fertilizer and the water-retaining agent can be improved through the design of the unique stirring device, meanwhile, the water-retaining agent is granulated and miniaturized, the problem that the use effect of mixed liquid is affected due to the fact that the water-retaining agent is precipitated in a mixing box is solved, and the problem that the conventional fertilizer applicator does not have the function of mixing the fertilizer and the water-retaining agent while applying fertilizer, so that the labor loss caused by secondary application is needed is solved;
(2) The water-retaining agent and fertilizer cooperative application device can meet the requirements of different mixed liquid demands in different areas by adjusting the spraying rate of the spraying nozzle and the reciprocating range of the reciprocating screw rod;
(3) According to the water-retaining agent and fertilizer cooperative application device, the crawler belt assembly is arranged, so that fertilizer application operation can be performed in some rugged farmlands, the application range of the device is improved, and the application limitation is reduced; by arranging the soil pressing wheel, the soil after fertilization can be compacted, so that the uniform mixing of the mixed liquid and the soil is ensured.
Drawings
Fig. 1: the overall front view structure of the utility model is schematically shown (the arrow direction represents the forward direction);
fig. 2: schematic partial cross-sectional structure;
fig. 3: schematic diagram of right side view structure of bottom of the vehicle plate (omitting the soil pressing wheel);
fig. 4: a schematic front cross-sectional view of the mixing unit;
wherein, the reference numerals are as follows: the device comprises a 1-vehicle plate, a 2-pushing handle, a 3-power supply device, a 4-PLC (programmable logic controller), a 5-track rear wheel, a 6-track front wheel, a 7-track, an 8-soil compacting wheel, a 9-limit rod, a 10-reciprocating screw rod, an 11-moving module, a 12-spraying nozzle, a 13-rotating shaft, a 14-plowing harrow, a 15-driving wheel, a 16-driven wheel, a 17-driving belt, a 18-mixing box, a 19-partition plate, a 20-stirring shaft, a 21-connecting rod, a 22-positive helical blade, a 23-negative helical blade, a 24-feeding hole, a 25-discharging hole, a 26-observation window, a 27-scale, a 28-liquid drawing pump, a 29-transmission pipe, a 30-hose, a 31-supporting plate, a 32-vehicle-mounted plate I, a 33-vehicle-mounted plate II, a 34-motor I, a 35-motor II and a 36-motor III.
Detailed Description
The present utility model will be described in further detail below for the purpose of making the present utility model clearer and more specific. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1-4, the water-retaining agent and fertilizer cooperative application device comprises a rectangular vehicle plate 1, wherein walking units are arranged on two opposite sides of the vehicle plate 1 in the width direction, and a ploughing unit, a spraying unit and a soil pressing wheel 8 are sequentially arranged at the bottom of the vehicle plate 1 from front to back along the length direction; the top of the vehicle plate 1 is sequentially provided with a pushing handle 2, a power supply device 3, a motor I34 and a mixing unit from back to front along the length direction, and the top of the power supply device 3 is fixedly provided with a PLC controller 4;
the walking unit comprises two crawler belt assemblies arranged on two opposite sides of the width direction of the vehicle plate 1, wherein each crawler belt assembly comprises crawler belt rear wheels 5, crawler belt front wheels 6 and crawler belts 7 arranged between the crawler belt rear wheels 5 and the crawler belt front wheels at intervals arranged at the bottom of the vehicle plate 1; a driving shaft (not shown) is connected between the two crawler rear wheels 5 of the two crawler assemblies, and the driving shaft is in transmission connection with a first motor 34; the bottom of the caterpillar 7 of the caterpillar assembly is level with the bottom of the soil pressing wheel 8;
the spraying unit comprises a limiting rod 9, a reciprocating screw rod 10, a moving module 11, a spraying nozzle 12 and two vehicle-mounted plates 32, wherein the two vehicle-mounted plates 32 are arranged on two opposite sides of the bottom of the vehicle plate 1 in the width direction, the limiting rod 9 and the reciprocating screw rod 10 are respectively arranged between the two vehicle-mounted plates 32 in a penetrating manner, the limiting rod 9 is positioned above the reciprocating screw rod 10, two holes respectively matched with the limiting rod 9 and the reciprocating screw rod 10 are formed in the moving module 11, and the moving module 11 is simultaneously sleeved on the limiting rod 9 and the reciprocating screw rod 10; the bottom of the mobile module 11 is fixedly connected with the spray nozzle 12; one end of the reciprocating screw rod 10 is provided with a driven wheel 16;
the tillage unit comprises a rotating shaft 13 and two vehicle-mounted plates II 33, the two vehicle-mounted plates II 33 are arranged on two opposite sides of the bottom of the vehicle plate 1 in the width direction, the rotating shaft 13 is penetratingly arranged between the two vehicle-mounted plates II 33, a tillage harrow 14 is fixedly arranged on the outer wall of the rotating shaft 13, a driving wheel 15 is arranged at one end of the rotating shaft 13, and a driving belt 17 is arranged between the driving wheel 15 and a driven wheel 16; the outer side of the bottom of the vehicle-mounted plate II 33 is fixedly provided with a supporting plate 31, the supporting plate 31 is fixedly provided with a motor II 35, and the output end of the motor II 35 is connected with the driving wheel 15;
the mixing unit comprises a mixing box 18, a motor III 36 is fixedly arranged at the top of the mixing box 18, a partition plate 19 is arranged in the mixing box 18 to divide the mixing box into two cavities with small upper part and large lower part, the lower cavity is a mixing chamber, and the output part of the motor III 36 is positioned in the upper cavity; the stirring device is arranged in the mixing chamber and comprises a stirring shaft 20 which is vertically arranged, the top end of the stirring shaft 20 is connected with the output shaft of a motor III 36, the other end of the stirring shaft extends to the bottom of the mixing chamber, a plurality of connecting rods 21 are vertically and fixedly arranged on the stirring shaft 20 at intervals, and two mutually-reversed spiral blades, namely a positive spiral blade 22 and a reverse spiral blade 23, are fixedly arranged on the connecting rods 21; the top of the mixing chamber is provided with an inclined box type feeding port 24, the bottom of the mixing chamber is provided with a cylindrical discharging port 25, the discharging port 25 is connected with a liquid pump 28, the liquid pump 28 is connected with a transmission pipe 29, a through groove matched with the transmission pipe 29 is formed in the vehicle plate 1, the transmission pipe 29 stretches into the through groove, the other end of the transmission pipe 29 is connected with a hose 30, and the other end of the hose 30 is connected with the spray nozzle 12; an observation window 26 is arranged on the side wall of the mixing chamber, and a scale 27 corresponding to the position of the observation window 26 is arranged on the inner wall of the mixing chamber;
the central axes of the driving shaft, the limiting rod 9, the reciprocating screw rod 10, the soil pressing wheel 8 and the rotating shaft 13 are parallel to each other and the width direction of the vehicle plate 1, and the first motor 34, the second motor 35, the third motor 36 and the liquid drawing pump 28 are respectively and simultaneously electrically connected with the power supply device 3 and the PLC controller 4.
The using process comprises the following steps:
(1) The PLC 4 starts a motor III 36 to pour the water-retaining agent, the fertilizer and the water into the mixing chamber from the feed inlet 24 in proportion, the motor III 36 drives the stirring shaft 20 to rotate so as to drive the positive spiral blade 22 and the negative spiral blade 23 to rotate together, and the mixed solution forms a low-power efficient mixing environment under the convection movement of the positive spiral blade 22 and the negative spiral blade 23, so that uniform mixing in a short time is realized in the mixing chamber, and the problem of raw material waste caused by mixed solution deposition is avoided;
(2) The PLC 4 starts a motor II 35 and a liquid pump 28, the liquid pump 28 sucks out the mixed liquid in the mixing chamber from the discharge hole 25, the mixed liquid is conveyed to the spray nozzle 12 through the conveying pipe 29 and the hose 30, and finally the mixed liquid is sprayed out through the spray nozzle 12; the motor II 35 drives the driving wheel 15 to rotate, the driving wheel 15 drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the plough harrow 14 to rotate, so that soil is ploughed, meanwhile, the driving wheel 15 also drives the driving belt 17, the driving belt 17 drives the driven wheel 16 to rotate, the driven wheel 16 drives the reciprocating screw rod 10 to rotate, the reciprocating screw rod 10 drives the movable module 11, the movable module 11 can not rotate along with the reciprocating screw rod 10 under the action of the limiting rod 9 and can only axially reciprocate along the limiting rod 9 and the reciprocating screw rod 10, the movable module 11 drives the spraying nozzle 12 to axially reciprocate (the axially reciprocate is left and right reciprocating in FIG. 3, that is, reciprocate along the width direction of the vehicle plate 1), so that the spraying range of the spraying nozzle 12 is improved, and the fertilization efficiency is improved;
(3) The PLC 4 starts a first motor 34, an operator holds the pushing handle 2 by hand, the first motor 34 drives the crawler belt assembly to walk forwards, and the crawler belt assembly drives the whole device to walk forwards; the soil compacting wheel 8 compacts the soil after the water-retaining agent-fertilizer mixture is applied, so that the water-retaining agent-fertilizer mixture is fully filled into the soil.
Claims (4)
1. A water-retaining agent, fertilizer cooperate with the applicator, characterized by that: the device comprises a rectangular vehicle plate, wherein walking units are arranged on two opposite sides of the width direction of the vehicle plate, and a ploughing unit and a spraying unit are sequentially arranged at the bottom of the vehicle plate from front to back along the length direction of the vehicle plate; the top of the vehicle plate is sequentially provided with a pushing handle, a power supply device, a motor I and a mixing unit from back to front along the length direction, and the top of the power supply device is fixedly provided with a PLC controller;
the walking unit comprises two crawler belt assemblies arranged on two opposite sides of the width direction of the vehicle plate, and each crawler belt assembly comprises crawler belt rear wheels, crawler belt front wheels and crawler belts arranged between the crawler belt rear wheels and the crawler belt front wheels at intervals; a driving shaft is connected between the two crawler rear wheels of the two crawler assemblies, and the driving shaft is in transmission connection with a motor I;
the spraying unit comprises a limiting rod, a reciprocating screw rod, a moving module, a spraying nozzle and two first vehicle-mounted plates, wherein the first vehicle-mounted plates are arranged on two opposite sides of the width direction of the bottom of the vehicle plate, the limiting rod and the reciprocating screw rod are respectively arranged between the first vehicle-mounted plates in a penetrating manner and are positioned above the reciprocating screw rod, two holes respectively matched with the limiting rod and the reciprocating screw rod are formed in the moving module, and the moving module is sleeved on the limiting rod and the reciprocating screw rod at the same time; the bottom of the mobile module is fixedly connected with the spraying nozzle; one end of the reciprocating screw rod is provided with a driven wheel;
the tillage unit comprises a rotating shaft and two vehicle-mounted plates II, the two vehicle-mounted plates II are arranged on two opposite sides of the width direction of the bottom of the vehicle plate, the rotating shaft is arranged between the two vehicle-mounted plates II in a penetrating manner, a tillage harrow is fixedly arranged on the outer wall of the rotating shaft, a driving wheel is arranged at one end of the rotating shaft, and a driving belt is arranged between the driving wheel and a driven wheel; a supporting plate is fixedly arranged on the outer side of the bottom of the vehicle-mounted plate II, a motor II is fixedly arranged on the supporting plate, and the output end of the motor II is connected with the driving wheel;
the mixing unit comprises a mixing box, a motor III is fixedly arranged at the top of the mixing box, a partition plate is arranged in the mixing box to divide the mixing box into two cavities with small upper parts and large lower parts, the lower cavity is a mixing chamber, and the output part of the motor III is positioned in the upper cavity; the stirring device comprises a stirring shaft which is vertically arranged, the top end of the stirring shaft is connected with the output shaft of the motor III, the other end of the stirring shaft extends to the bottom of the mixing chamber, a plurality of connecting rods are vertically and fixedly arranged on the stirring shaft at intervals, and two spiral blades which are mutually reverse spiral are fixedly arranged on the connecting rods, namely one spiral blade is a positive spiral blade, and the other spiral blade is a reverse spiral blade; the top of the mixing chamber is provided with a feed inlet, the bottom of the mixing chamber is provided with a discharge outlet, the discharge outlet is connected with a liquid pump, the liquid pump is connected with a transmission pipe, a through groove matched with the transmission pipe is formed in the vehicle plate, the transmission pipe stretches into the through groove, the other end of the transmission pipe is connected with a hose, and the other end of the hose is connected with a spraying nozzle;
the central axes of the driving shaft, the limiting rod, the reciprocating screw rod, the soil pressing wheel and the rotating shaft are parallel to each other and the width direction of the vehicle plate, and the first motor, the second motor, the third motor and the liquid pump are respectively and simultaneously electrically connected with the power supply device and the PLC controller.
2. The water retaining agent and fertilizer co-applicator of claim 1, wherein: the bottom of the sweep plate is provided with a soil pressing wheel at the rear position of the spraying unit, and the bottom of the soil pressing wheel is flush with the bottom of the crawler belt assembly.
3. The water retaining agent and fertilizer co-applicator of claim 1, wherein: the feed inlet is of a box type, and the discharge outlet is of a cylinder type.
4. The water retaining agent and fertilizer co-applicator of claim 1, wherein: the side wall of the mixing chamber is provided with an observation window, and the inner wall of the mixing chamber is provided with a scale corresponding to the position of the observation window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320802619.9U CN220457910U (en) | 2023-04-12 | 2023-04-12 | Water-retaining agent, fertilizer are application apparatus in coordination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320802619.9U CN220457910U (en) | 2023-04-12 | 2023-04-12 | Water-retaining agent, fertilizer are application apparatus in coordination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220457910U true CN220457910U (en) | 2024-02-09 |
Family
ID=89805981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320802619.9U Active CN220457910U (en) | 2023-04-12 | 2023-04-12 | Water-retaining agent, fertilizer are application apparatus in coordination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220457910U (en) |
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2023
- 2023-04-12 CN CN202320802619.9U patent/CN220457910U/en active Active
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