CN112314405A - Efficient irrigation equipment for park greening - Google Patents
Efficient irrigation equipment for park greening Download PDFInfo
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- CN112314405A CN112314405A CN202011339618.2A CN202011339618A CN112314405A CN 112314405 A CN112314405 A CN 112314405A CN 202011339618 A CN202011339618 A CN 202011339618A CN 112314405 A CN112314405 A CN 112314405A
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- round box
- rotating hole
- gear
- park
- irrigation equipment
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
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Abstract
The invention belongs to the technical field of irrigation equipment, and particularly relates to efficient irrigation equipment for park greening. The invention has the advantages of high practicability, energy conservation, environmental protection, wider irrigation area, lower cost and better installation concealment in the park, and effectively avoids the phenomenon that crops are easy to die due to lack of moisture or excessive moisture caused by artificially controlled irrigation.
Description
Technical Field
The invention relates to the technical field of irrigation equipment, in particular to efficient irrigation equipment for park greening.
Background
The water-saving irrigation equipment is a general name of mechanical equipment with a water-saving function for irrigation, the types of the equipment mainly comprise a sprinkling irrigation type, a micro-irrigation type and a full-plastic water-saving irrigation system, agriculture is used as an economic life line and a water consumer of China, and for a long time, due to reasons of ideological consciousness, capital, technology and the like, the traditional backward flood irrigation mode is continuously used, so that manpower and material resources are greatly wasted, the water-saving irrigation equipment is gradually popularized in vast rural areas of China and becomes a mainstream of modern society and agriculture, and at present, relevant equipment manufacturers in China have different strength, and vast farmers have to pay high attention to selecting proper agricultural tools.
Through examining institute, the grant bulletin number is CN211322380U discloses an irrigation equipment for park afforestation, including the base, the top fixedly connected with fixed column of base, the dead slot has been seted up to the inside of fixed column, the inner wall fixedly connected with elevating gear of dead slot, at the top fixedly connected with support column of fixed column, the cavity has been seted up to the inside of support column. This irrigation equipment is used in park afforestation, through setting up elevating gear, and then after opening elevating gear, elevating gear will drive electronic shower nozzle and irrigate the plant in moving up and down, simultaneously in addition the motor opens the cooperation between first gear and the second gear in back, can make electronic shower nozzle irrigate plant all around when moving from top to bottom, and the displacement makes electronic shower nozzle's irrigation range increase from top to bottom, thereby just can be quick irrigate plant all around and finish, irrigation time and cost have been reduced from this by a wide margin.
However, the irrigation device has a limited irrigation range, is relatively high in cost when irrigating a large-area plant, and has a basically unchanged irrigation angle, so that the plant can be damaged after being irrigated for a long time.
Therefore, we propose an efficient irrigation device for park greening to solve the above problems
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides efficient irrigation equipment for greening parks.
In order to achieve the purpose, the invention adopts the following technical scheme: a high-efficiency irrigation device for greening parks comprises a chassis, wherein a trapezoidal box is fixedly mounted at the top of the chassis, a first rotating hole is formed in the inner wall of the top of the trapezoidal box, a water outlet pipe is rotatably mounted in the first rotating hole and penetrates through the first rotating hole, a four-way joint is fixedly mounted at the top end of the water outlet pipe, three water spraying heads are arranged on the four-way joint, a first round box and a second round box are fixedly mounted on the inner wall of the bottom of the trapezoidal box, the water outlet pipe penetrates through the first round box and is rotatably connected with the first round box, the first round box and the second round box are connected with a same communicating pipe, the communicating pipe is communicated with the first round box and the second round box, a water inlet pipe is arranged on one side of the second round box, which is far away from the first round box, the water inlet pipe sequentially penetrates through the second round box and the trapezoidal box, and a connector is fixedly mounted at one, the connector is communicated with the water inlet pipe, four fixing holes are formed in the base plate, and conical cylinders are fixedly mounted in the four fixing holes.
Preferably, a first gear is fixedly installed on the water outlet pipe, a second rotating hole is formed in the inner wall of the top of the second round box, a rotating shaft is rotatably installed in the second rotating hole and penetrates through the second rotating hole, a second gear is rotatably installed at the top end of the rotating shaft and is meshed with the first gear, and a paddle wheel is arranged in the second round box and is fixedly connected with the rotating shaft.
Preferably, fixed mounting has first annular piece in the awl section of thick bamboo, slidable mounting has the montant in the first annular piece, the montant runs through first annular piece, fixed cover is equipped with second annular piece on the montant, second annular piece is located the below of first annular piece, one side fixed mounting that first annular piece and second annular piece are close to each other has same spring, the spring sliding sleeve is established on the montant, the bottom fixed mounting of montant has the disc, set up four slide holes that are circular arrangement on the inner wall of awl section of thick bamboo, equal slidable mounting has the awl nail in four slide holes, and four awl nails run through corresponding slide hole respectively, and the one end that four awl nails are close to each other all articulates there is the connecting rod, and the top of four connecting rods all articulates with the disc mutually.
Preferably, a third rotating hole is formed in the inner wall of the top of the first round box, the water outlet pipe penetrates through the third rotating hole and is connected with the inner wall of the third rotating hole in a rotating mode, bearings are arranged in the electric rotating hole and the first rotating hole, outer rings of the two bearings are fixedly connected with the inner walls of the first rotating hole and the third rotating hole respectively, and inner rings of the two bearings are fixedly sleeved on the water outlet pipe.
Preferably, first pilot holes have all been seted up on the one side inner wall that first circle case and second circle case are close to each other, the connecting pipe run through two first pilot holes and with the inner wall fixed connection of two first pilot holes, second pilot holes have all been seted up on the one side inner wall that first circle case was kept away from to second circle case and trapezoidal case, the inlet tube run through two second pilot holes and with the inner wall fixed connection of two second pilot holes.
Preferably, the sprinkler head comprises a branch pipe, the branch pipe is communicated with the four-way connector, four nozzles which are linearly arranged at equal intervals are fixedly installed on the branch pipe, and the nozzles are communicated with the branch pipe.
Preferably, the gear ratio of the first gear and the second gear is 5: 1.
Preferably, the paddle wheel comprises a circular tube, the circular tube is fixedly sleeved on the rotating shaft, a plurality of connecting rods which are circularly arranged are fixedly mounted on the outer wall of the circular tube, and blades are fixedly mounted at one ends, far away from each other, of the connecting rods.
Preferably, all fixed mounting has the sealing washer on the inner wall of slide opening and first annular piece, awl nail and montant run through corresponding sealing washer respectively and with corresponding sealing washer inner wall sliding connection, the top fixed mounting of montant has annular handle.
Compared with the prior art, the invention has the beneficial effects that: when the irrigation device is changed into an irrigation device, the four conical cylinders can be completely inserted into soil, the bottom of the chassis is contacted with the ground, the corresponding vertical rods are sequentially pressed through the four annular handles, the four conical nails are pushed to be away from each other and inserted into the soil through the four connecting rods on the disk when the vertical rods move downwards, so that the conical cylinders are tightly inserted into the soil and cannot easily shake, when the irrigation device is taken out, the four vertical rods are sequentially pulled upwards through the four annular handles, the vertical rods drive the four conical nails to be close to each other through the four connecting rods on the disk, so that the four conical cylinders on the irrigation device can be pulled out of the soil, when irrigation work is carried out, the connecting heads are firstly communicated with a tap water pipe, and when tap water enters the second round box and enters the first round box through the connecting pipe, the tap water drives the paddle impeller to rotate, the paddle wheel drives the rotating shaft to rotate, the rotating shaft drives the second gear to rotate, the second gear drives the first gear which is meshed with the second gear to rotate, the first gear drives the water outlet pipe to rotate, the water outlet pipe drives the three water spraying heads on the four-way joint to rotate, and when the water outlet pipe rotates, tap water in the first round box sequentially passes through the water outlet pipe and the four-way joint and is finally sprayed out through the three water spraying heads, so that surrounding plants can be irrigated.
The invention has the advantages of high practicability, energy conservation, environmental protection, wider irrigation area, lower cost and better installation concealment in the park, and effectively avoids the phenomenon that crops are easy to die due to lack of moisture or excessive moisture caused by artificially controlled irrigation.
Drawings
FIG. 1 is a schematic perspective view of an efficient irrigation device for greening parks according to the present invention;
FIG. 2 is a schematic sectional view of an elevation view of an efficient irrigation device for greening parks according to the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a schematic top sectional view of a second round box, a rotating shaft, a paddle wheel, a connecting pipe and a water inlet pipe in the efficient irrigation device for park greening according to the present invention;
FIG. 5 is an enlarged schematic view of portion B of FIG. 2;
fig. 6 is an enlarged schematic view of a portion C in fig. 2.
In the figure: 1. a chassis; 2. a ladder box; 3. a first rotation hole; 4. a water outlet pipe; 5. a four-way joint; 6. a sprinkler head; 7. a first gear; 8. a first round box; 9. a second round box; 10. a communicating pipe; 11. a second rotation hole; 12. a rotating shaft; 13. a second gear; 14. a paddle wheel; 15. a water inlet pipe; 16. a connector; 17. a fixing hole; 18. a conical cylinder; 19. a first ring block; 20. a vertical rod; 21. a second ring block; 22. a spring; 23. a disc; 24. a slide hole; 25. a conical nail; 26. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-6, the embodiment provides a high-efficiency irrigation device for park greening, which comprises a chassis 1, a trapezoidal box 2 is fixedly mounted at the top of the chassis 1, a first rotating hole 3 is formed in the inner wall of the top of the trapezoidal box 2, a water outlet pipe 4 is rotatably mounted in the first rotating hole 3, the water outlet pipe 4 penetrates through the first rotating hole 3, a four-way joint 5 is fixedly mounted at the top end of the water outlet pipe 4, three water spray heads 6 are arranged on the four-way joint 5, a first round box 8 and a second round box 9 are fixedly mounted on the inner wall of the bottom of the trapezoidal box 2, the water outlet pipe 4 penetrates through the first round box 8 and is rotatably connected with the first round box 8, the first round box 8 and the second round box 9 are connected with a same communicating pipe 10, the communicating pipe 10 is communicated with the first round box 8 and the second round box 9, a water inlet pipe 15 is arranged on the side of the second round box 9 far away from the first round box 8, the water, a connector 16 is fixedly installed at one end, far away from the first round box 8, of the water inlet pipe 15, the connector 16 is communicated with the water inlet pipe 15, four fixing holes 17 are formed in the chassis 1, and conical cylinders 18 are fixedly installed in the four fixing holes 17;
in this embodiment, as shown in fig. 1 to 6, a first gear 7 is fixedly mounted on the water outlet pipe 4, a second rotation hole 11 is formed in the inner wall of the top of the second round box 9, a rotation shaft 12 is rotatably mounted in the second rotation hole 11, the rotation shaft 12 penetrates through the second rotation hole 11, a second gear 13 is rotatably mounted at the top end of the rotation shaft 12, the second gear 13 is engaged with the first gear 7, a paddle wheel 14 is disposed in the second round box 9, and the paddle wheel 14 is fixedly connected with the rotation shaft 12.
Fixed mounting has first annular piece 19 in the awl section of thick bamboo 18, slidable mounting has montant 20 in the first annular piece 19, montant 20 runs through first annular piece 19, fixed cover is equipped with second annular piece 21 on the montant 20, second annular piece 21 is located the below of first annular piece 19, one side fixed mounting that first annular piece 19 and second annular piece 21 are close to each other has same spring 22, spring 22 slides and establishes on montant 20, the bottom fixed mounting of montant 20 has disc 23, set up four slide opening 24 that are circular arrangement on the inner wall of awl section of thick bamboo 18, equal slidable mounting has the awl nail 25 in four slide opening 24, four awl nails 25 run through corresponding slide opening 24 respectively, the one end that four awl nails 25 are close to each other all articulates there is connecting rod 26, the top of four connecting rods 26 all articulates with disc 23 mutually.
The third rotation hole has been seted up on the top inner wall of first round case 8, and outlet pipe 4 runs through the third and rotates the hole and rotate the inner wall rotation connection in hole with the third, and electricity rotates and all is equipped with the bearing in hole and the first rotation hole 3, and the outer lane of two bearings rotates the inner wall fixed connection in hole 3 and the third with first respectively, and the inner circle of two bearings is all fixed the cover and is established on outlet pipe 4.
First pilot holes have all been seted up on the one side inner wall that first circle case 8 and second circle case 9 are close to each other, communicating pipe 10 run through two first pilot holes and with the inner wall fixed connection of two first pilot holes, second pilot holes have all been seted up on the one side inner wall that first circle case 8 was kept away from to second circle case 9 and trapezoidal case 2, inlet tube 15 run through two second pilot holes and with the inner wall fixed connection of two second pilot holes.
The sprinkler head 6 comprises a branch pipe, the branch pipe is communicated with the four-way joint 5, four nozzles which are linearly arranged at equal intervals are fixedly arranged on the branch pipe, and the nozzles are communicated with the branch pipe.
The gear ratio of the first gear 7 and the second gear 13 is 5: 1.
The paddle wheel 14 comprises a circular tube, the circular tube is fixedly sleeved on the rotating shaft 12, a plurality of connecting rods which are circularly arranged are fixedly installed on the outer wall of the circular tube, and blades are fixedly installed at one ends, far away from each other, of the connecting rods.
The sliding hole 24 and the inner wall of the first annular block 19 are both fixedly provided with a sealing ring, the conical nail 25 and the vertical rod 20 respectively penetrate through the corresponding sealing ring and are in sliding connection with the inner wall of the corresponding sealing ring, and the top end of the vertical rod 20 is fixedly provided with an annular handle.
Specifically, when the irrigation device is used, the four conical cylinders 18 can be completely inserted into soil, the bottom of the chassis 1 is in contact with the ground, then the corresponding vertical rods 20 are sequentially pressed through the four annular handles, when the vertical rods 20 move downwards, the four conical nails 25 are pushed to be away from each other through the four connecting rods 26 on the disc 23 and are inserted into the soil, so that the conical cylinders 18 are tightly inserted into the soil and cannot easily shake, when the irrigation device is taken out, the four vertical rods 20 are sequentially pulled upwards through the four annular handles, the vertical rods 20 drive the four conical nails 25 to be close to each other through the four connecting rods 26 on the disc 23, so that the four conical cylinders 18 on the irrigation device can be pulled out of the soil, when irrigation work is carried out, the connector 16 is firstly communicated with a tap water pipe, when tap water enters the second round box 9 and enters the first round box 8 through the communicating pipe 10, the tap water drives the paddle wheel 14 to rotate, the paddle wheel 14 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the second gear 13 to rotate, the second gear 13 drives the first gear 7 which is meshed with the second gear to rotate, the first gear 7 drives the water outlet pipe 4 to rotate, the water outlet pipe 4 drives the three water spraying heads 6 on the four-way joint 5 to rotate, and when the water outlet pipe 4 rotates, the tap water in the first round box 8 sequentially passes through the water outlet pipe 4 and the four-way joint 5 and is finally sprayed out through the three water spraying heads 6, so that surrounding plants can be irrigated.
In the embodiment, when the irrigation device is used, the four conical cylinders 18 can be completely inserted into soil, the bottom of the chassis 1 is in contact with the ground, the corresponding vertical rods 20 are sequentially pressed through the four annular handles, the four conical nails 25 are pushed to be away from each other and inserted into the soil through the four connecting rods 26 on the disc 23 when the vertical rods 20 move downwards, so that the conical cylinders 18 are tightly inserted into the soil and cannot easily shake, when the irrigation device is taken out, the four vertical rods 20 are sequentially pulled upwards through the four annular handles, the vertical rods 20 drive the four conical nails 25 to be close to each other through the four connecting rods 26 on the disc 23, and the four conical cylinders 18 on the irrigation device can be pulled out of the soil;
in the embodiment, when irrigation is carried out, the connector 16 is communicated with a tap water pipe, when tap water enters the second round box 9 and enters the first round box 8 through the communicating pipe 10, the tap water drives the paddle wheel 14 to rotate, the paddle wheel 14 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the second gear 13 to rotate, the second gear 13 drives the meshed first gear 7 to rotate, the first gear 7 drives the water outlet pipe 4 to rotate, the water outlet pipe 4 drives the three water spraying heads 6 on the four-way connector 5 to rotate, when the water outlet pipe 4 rotates, the tap water in the first round box 8 sequentially passes through the water outlet pipe 4 and the four-way connector 5 and finally is sprayed out through the three water spraying heads 6, so that the park can irrigate surrounding plants, the invention has the advantages of high practicability, energy conservation and environmental protection, wide irrigation area, low cost and good installation concealment in the park, effectively avoids the phenomenon that crops are easy to die due to lack of water or excessive water caused by artificially controlled irrigation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The efficient irrigation equipment for the greening of the park comprises a chassis (1) and is characterized in that a trapezoidal box (2) is fixedly mounted at the top of the chassis (1), a first rotating hole (3) is formed in the inner wall of the top of the trapezoidal box (2), a water outlet pipe (4) is rotatably mounted in the first rotating hole (3), the water outlet pipe (4) penetrates through the first rotating hole (3), a four-way joint (5) is fixedly mounted at the top end of the water outlet pipe (4), three water spray heads (6) are arranged on the four-way joint (5), a first round box (8) and a second round box (9) are fixedly mounted on the inner wall of the bottom of the trapezoidal box (2), the water outlet pipe (4) penetrates through the first round box (8) and is rotatably connected with the first round box (8), and the first round box (8) and the second round box (9) are connected with a same communicating pipe (10), communicating pipe is linked together with first circle case (8) and second circle case (9), one side that first circle case (8) were kept away from in second circle case (9) is equipped with inlet tube (15), inlet tube (15) run through second circle case (9) and trapezoidal case (2) in proper order, the one end fixed mounting that first circle case (8) were kept away from in inlet tube (15) has connector (16), connector (16) and inlet tube (15) are linked together, four fixed orificess (17) have been seted up on chassis (1), equal fixed mounting has a awl section of thick bamboo (18) in four fixed orificess (17).
2. The efficient irrigation equipment for park greening as claimed in claim 1, wherein a first gear (7) is fixedly mounted on the water outlet pipe (4), a second rotating hole (11) is formed in the inner wall of the top of the second round box (9), a rotating shaft (12) is rotatably mounted in the second rotating hole (11), the rotating shaft (12) penetrates through the second rotating hole (11), a second gear (13) is rotatably mounted at the top end of the rotating shaft (12), the second gear (13) is meshed with the first gear (7), a paddle wheel (14) is arranged in the second round box (9), and the paddle wheel (14) and the rotating shaft (12) are fixedly connected together.
3. The efficient irrigation equipment for park greening as claimed in claim 1, wherein a first annular block (19) is fixedly installed in the cone cylinder (18), a vertical rod (20) is slidably installed in the first annular block (19), the vertical rod (20) penetrates through the first annular block (19), a second annular block (21) is fixedly sleeved on the vertical rod (20), the second annular block (21) is located below the first annular block (19), one side of the first annular block (19) close to one side of the second annular block (21) is fixedly provided with a same spring (22), the spring (22) is slidably sleeved on the vertical rod (20), a disc (23) is fixedly installed at the bottom end of the vertical rod (20), four sliding holes (24) which are circularly arranged are formed in the inner wall of the cone cylinder (18), and cone nails (25) are slidably installed in the four sliding holes (24), four awl nails (25) run through corresponding slide opening (24) respectively, and the one end that four awl nails (25) are close to each other all articulates there is connecting rod (26), and the top of four connecting rod (26) all articulates with disc (23) mutually.
4. The efficient irrigation equipment for park greening as claimed in claim 1, wherein a third rotating hole is formed in the inner wall of the top of the first round box (8), the water outlet pipe (4) penetrates through the third rotating hole and is rotatably connected with the inner wall of the third rotating hole, bearings are arranged in the electric rotating hole and the first rotating hole (3), the outer rings of the two bearings are fixedly connected with the inner walls of the first rotating hole (3) and the third rotating hole respectively, and the inner rings of the two bearings are fixedly sleeved on the water outlet pipe (4).
5. The efficient irrigation equipment for the park greening as claimed in claim 1, wherein the inner walls of the sides, close to each other, of the first round box (8) and the second round box (9) are provided with first assembling holes, the connecting pipe (10) penetrates through the two first assembling holes and is fixedly connected with the inner walls of the two first assembling holes, the inner walls, far away from the first round box (8), of the second round box (9) and the trapezoidal box (2) are provided with second assembling holes, and the water inlet pipe (15) penetrates through the two second assembling holes and is fixedly connected with the inner walls of the two second assembling holes.
6. The efficient irrigation equipment for the greening of the park as claimed in claim 1, wherein the sprinkler head (6) comprises a branch pipe, the branch pipe is communicated with the four-way joint (5), four nozzles are fixedly arranged on the branch pipe in a linear and equidistant arrangement, and a plurality of nozzles are communicated with the branch pipe.
7. The efficient irrigation equipment for the greening of the park as claimed in claim 3, wherein the gear ratio of the first gear (7) to the second gear (13) is 5: 1.
8. The efficient irrigation equipment for the park greening as claimed in claim 2, wherein the paddle wheel (14) comprises a circular tube, the circular tube is fixedly sleeved on the rotating shaft (12), a plurality of connecting rods arranged in a circular shape are fixedly mounted on the outer wall of the circular tube, and blades are fixedly mounted at the ends, far away from each other, of the connecting rods.
9. The efficient irrigation equipment for the park greening as claimed in claim 3, wherein sealing rings are fixedly mounted on the inner walls of the sliding hole (24) and the first annular block (19), the conical nail (25) and the vertical rod (20) respectively penetrate through the corresponding sealing ring and are in sliding connection with the inner wall of the corresponding sealing ring, and an annular handle is fixedly mounted at the top end of the vertical rod (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339618.2A CN112314405A (en) | 2020-11-25 | 2020-11-25 | Efficient irrigation equipment for park greening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339618.2A CN112314405A (en) | 2020-11-25 | 2020-11-25 | Efficient irrigation equipment for park greening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112314405A true CN112314405A (en) | 2021-02-05 |
Family
ID=74309602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011339618.2A Withdrawn CN112314405A (en) | 2020-11-25 | 2020-11-25 | Efficient irrigation equipment for park greening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112314405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022178877A1 (en) * | 2021-02-27 | 2022-09-01 | 苏州乐米凡电气科技有限公司 | Environmentally friendly lawn sprinkler device |
-
2020
- 2020-11-25 CN CN202011339618.2A patent/CN112314405A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022178877A1 (en) * | 2021-02-27 | 2022-09-01 | 苏州乐米凡电气科技有限公司 | Environmentally friendly lawn sprinkler device |
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Application publication date: 20210205 |
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