CN210782387U - Agricultural water-saving irrigation device - Google Patents

Agricultural water-saving irrigation device Download PDF

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Publication number
CN210782387U
CN210782387U CN201921599319.5U CN201921599319U CN210782387U CN 210782387 U CN210782387 U CN 210782387U CN 201921599319 U CN201921599319 U CN 201921599319U CN 210782387 U CN210782387 U CN 210782387U
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China
Prior art keywords
water
motor
base
irrigation device
fixedly connected
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Expired - Fee Related
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CN201921599319.5U
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Chinese (zh)
Inventor
徐斌艳
周献珍
王小静
侯美月
刘利娟
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Individual
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Individual
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Priority to CN201921599319.5U priority Critical patent/CN210782387U/en
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Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of agricultural irrigation equipment, in particular to an agricultural water-saving irrigation device, which comprises a slide rail, a base, a transmission column, a water pipe, a belt, a motor I, a motor II, a rotary seat, spray pipes, a connecting frame, pulleys and a sealing ring, wherein the water pipe is fixedly connected at the right end of the base, the motor I is fixedly connected at the middle part of the lower end of the base, the rotary seat is rotatably connected at the upper end of the base, the transmission column is fixedly connected on the rotary seat, the connecting frame is in threaded transmission connection on the transmission column, three spray pipes are circumferentially and uniformly rotatably connected on the rotary seat, and are simultaneously and respectively in sliding connection on the connecting frame, the motor II is fixedly connected in the rotary seat and is simultaneously in transmission connection with the inner wall at the upper end of the base, the two pulleys are rotatably connected at the front end, rotate simultaneously and connect in the roating seat, reduce the waste of water resource, promote irrigation efficiency, improve farming output.

Description

Agricultural water-saving irrigation device
Technical Field
The utility model relates to an agricultural irrigation equipment technical field, more specifically the agricultural water-saving irrigation device that says so.
Background
China is a big agricultural country, the yield of various grains is huge every year, the growth of crops needs a large amount of water for irrigation, the methods for irrigating the crops are numerous, the traditional method for irrigating the crops is a flood irrigation method, the flood irrigation needs a large amount of water, the waste of water resources is very serious, the water resources in China are limited, in places with insufficient water resources, the domestic water of people cannot be guaranteed, the resource saving is one of the policies for protecting the environment in China, the mode of using water-saving irrigation is particularly important, and the existing agricultural water-saving irrigation device cannot completely meet the water-saving requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an agricultural water-saving irrigation device can a plurality of equipment use simultaneously, and the device can carry out corresponding adjustment according to the size of crops planting ground, makes the area of the irrigation of device just in time cover the planting area of crops to the device can 360 irrigate, increases the efficiency that crops irrigated, improves the output of crops.
The purpose of the utility model is realized through the following technical scheme:
as a further optimization of the technical scheme, the utility model relates to an agricultural water-saving irrigation device, which comprises a slide rail, a base, a transmission column, a water pipe, a belt, a motor I and a motor II, wherein the water pipe is fixedly connected at the right end of the base, the motor I is fixedly connected at the middle part of the lower end of the base, the agricultural water-saving irrigation device also comprises a rotary seat, spray pipes, a connecting frame component, a pulley and a sealing ring, the rotary seat is rotatably connected at the upper end of the base, the transmission column is fixedly connected at the upper end of the rotary seat, the connecting frame component is in threaded transmission connection with the transmission column, the spray pipes are three, the lower ends of the three spray pipes are uniformly and circumferentially rotatably connected on the rotary seat, the three spray pipes are respectively and slidably connected at the three ends of the connecting frame component, the motor II is fixedly connected at the lower end of the, the pulley is provided with two, and two pulleys all rotate to be connected both ends around the base lower extreme, the belt is provided with two, and two pulleys are connected through two belt transmission respectively with motor I, the sealing ring cover is established in the upper end of base, and the sealing ring rotates to be connected in the roating seat.
As a further optimization of the technical proposal, the utility model relates to an agricultural water-saving irrigation device, the base comprises a toothed ring, a communicating pipe and a seat body, the toothed ring is fixedly connected on the inner wall of the upper end of the seat body, the communicating pipe is arranged in the seat body, and two ports of the communicating pipe are respectively arranged at the middle part of the right end of the seat body and the middle part of the upper end of the seat body, the communicating pipe is fixedly connected at the port part of the communicating pipe positioned at the middle part of the right end of the seat body, the sealing ring is sleeved at the port part,
as a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, the roating seat includes rotator, motor fixing base I, logical water cavity, limbers, motor fixing base II, rotates chamber and sealed hole, I fixed connection of motor fixing base is on rotating the intracavity wall, in II fixed connection motor fixing base I of motor, the inside upper end of rotator is provided with logical water cavity, the inside lower extreme of rotator is provided with rotates the chamber, sealed hole sets up at logical water cavity and the middle part of rotating the chamber between baffle, the limbers is provided with threely, and three limbers circumference setting is on logical water cavity respectively, the middle part of rotator upper end is provided with motor fixing base II.
As a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, the spray pipe is including fixed pipe, slip post, water spout and water inlet, fixed pipe is provided with threely, the equal fixedly connected with slip post in inboard of three fixed pipe, the water spout is provided with a plurality ofly, and a plurality of water spouts evenly set up in the outside of fixed pipe, the lower extreme of fixed pipe is provided with the water inlet, the equal circumferential direction of lower extreme of three fixed pipe is on the outer wall in limbers chamber, the water inlet passes through the hose intercommunication with the limbers.
As a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, the transmission post includes motor III and screw thread post, screw thread post fixed connection is on motor III's output shaft, motor III fixed connection is in motor fixing base II.
As a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, link subassembly includes link, screw hole and slip pipe, the middle part of link is provided with the screw hole, the screw hole passes through screw thread transmission and connects on the screw thread post, the slip pipe is provided with threely, and three slip pipe rotates respectively to be connected at the three tip of link, three slip pipe is sliding connection respectively on three slip post.
As a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, the pulley includes belt pulley I, belt pulley I is provided with two, and two belt pulley I difference fixed connection are on the right side of two pulley axis of rotation.
As a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, motor I includes belt pulley II, II fixed connection on motor I's output shaft of belt pulley, belt pulley II is connected through two belt drive respectively with two belt pulley I.
As a further optimization of this technical scheme, the utility model relates to an agricultural water-saving irrigation device, motor II includes the gear, gear fixed connection is on motor II's output shaft, the gear is connected with the ring gear meshing transmission.
As a further optimization of the technical scheme, the utility model relates to an agricultural water-saving irrigation device, the sealing ring rotates to be connected in the sealing hole.
The utility model relates to an agricultural water-saving irrigation device's beneficial effect does: the device can a plurality of equipment remove in same track, the work of mutually supporting, improve irrigation speed, can control three spray pipe through the roating seat and carry out 360 rotations, can pass through the transmission cooperation of link and transmission post simultaneously, and the sliding connection of sliding tube and sliding post, can control the turned angle of three spray pipe, the area that the adjustment water spray was irrigated, the area that makes the water spray irrigated is corresponding with the area that crops were planted, reduce the waste of water resource, promote irrigation efficiency, the output is made to the improvement farming.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the overall structure of an agricultural water-saving irrigation device of the present invention;
fig. 2 is a partial schematic view of the overall structure of the present invention;
fig. 3 is a schematic partial cross-sectional view of the overall structure of the present invention;
fig. 4 is a schematic structural diagram of the base of the present invention;
fig. 5 is a schematic structural section view of the rotary base of the present invention;
FIG. 6 is a schematic view of the upper structure of the sprinkler pipe of the present invention;
FIG. 7 is a schematic view of the lower structure of the sprinkler pipe of the present invention;
fig. 8 is a schematic structural view of the drive column of the present invention;
fig. 9 is a schematic structural view of the connector bracket assembly of the present invention;
fig. 10 is a schematic structural view of the pulley of the present invention;
fig. 11 is a schematic structural view of the seal ring of the present invention.
In the figure: a slide rail 1; a base 2; 2-1 of a toothed ring; a communicating pipe 2-2; 2-3 of a seat body; a rotary base 3; a rotating body 3-1; a motor fixing seat I3-2; 3-3 of a water through cavity; 3-4 of water through holes; motor fixing seats II 3-5; 3-6 of a rotating cavity; 3-7 of a sealing hole; a water spray pipe 4; a fixed tube 4-1; 4-2 of a sliding column; 4-3 of a water nozzle; 4-4 of a water inlet; a drive column 5; motor III-1; 5-2 of a threaded column; a connecting frame assembly 6; a connecting frame 6-1; a threaded hole 6-2; 6-3 of a sliding pipe; a water pipe 7; a pulley 8; a belt pulley I8-1; a belt 9; a motor I10; a belt pulley II 10-1; a motor II 11; gear 11-1; a sealing ring 12.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the embodiment is described below with reference to fig. 1 to 11, an agricultural water-saving irrigation device, comprising a sliding rail 1, a base 2, a transmission column 5, a water pipe 7, a belt 9, a motor i 10 and a motor ii 11, wherein the water pipe 7 is fixedly connected to the right end of the base 2, the motor i 10 is fixedly connected to the middle portion of the lower end of the base 2, the agricultural water-saving irrigation device further comprises a rotary base 3, a spray pipe 4, a connecting frame assembly 6, a pulley 8 and a sealing ring 12, the rotary base 3 is rotatably connected to the upper end of the base 2, the transmission column 5 is fixedly connected to the upper end of the rotary base 3, the connecting frame assembly 6 is in threaded transmission connection with the transmission column 5, the spray pipes 4 are provided with three numbers, the lower ends of the three spray pipes 4 are circumferentially and uniformly rotatably connected to the rotary base 3, and the three spray pipes 4 are, motor II 11 fixed connection is at the lower extreme of 3 inner walls of roating seat, and the inner wall transmission of motor II 11 and 2 upper ends of base is connected, pulley 8 is provided with two, and two pulleys 8 all rotate and connect both ends around 2 lower extremes of base, belt 9 is provided with two, and two pulleys 8 are connected through two belt 9 transmissions respectively with motor I10, the upper end at base 2 is established to sealing ring 12 cover, and sealing ring 12 rotates to be connected in roating seat 3.
The second embodiment is as follows:
the present embodiment is described below with reference to fig. 1 to 11, and the present embodiment further describes the first embodiment, where the base 2 includes a gear ring 2-1, a communication pipe 2-2 and a base body 2-3, the gear ring 2-1 is fixedly connected to an inner wall at an upper end of the base body 2-3, the communication pipe 2-2 is disposed in the base body 2-3, two ports of the communication pipe 2-2 are respectively disposed at a middle portion at a right end of the base body 2-3 and a middle portion at an upper end of the base body 2-3, the water pipe 7 is fixedly connected to a port portion of the communication pipe 2-2 located at the middle portion at the right end of the base body 2-3, the sealing ring 12 is sleeved at a port portion of the communication pipe 2-,
the third concrete implementation mode:
the embodiment is described below with reference to fig. 1-11, and the embodiment will be further described, wherein the rotating base 3 includes a rotating body 3-1, a motor fixing base i 3-2, a water through cavity 3-3, a water through hole 3-4, a motor fixing base ii 3-5, a rotating cavity 3-6 and a sealing hole 3-7, the motor fixing base i 3-2 is fixedly connected to the inner wall of the rotating cavity 3-6, the motor ii 11 is fixedly connected to the inside of the motor fixing base i 3-2, the upper end of the inside of the rotating body 3-1 is provided with the water through cavity 3-3, the lower end of the inside of the rotating body 3-1 is provided with the rotating cavity 3-6, the sealing hole 3-7 is arranged in the middle of a partition between the water through cavity 3-3 and the rotating cavity 3-6, the three water through holes 3-4 are arranged, the three water through holes 3-4 are respectively and circumferentially arranged on the water through cavities 3-3, and the middle of the upper end of the rotating body 3-1 is provided with a motor fixing seat II 3-5.
The fourth concrete implementation mode:
the present embodiment is described below with reference to fig. 1 to 11, and the present embodiment further describes the first embodiment, wherein the water spray pipe 4 includes a fixed pipe 4-1, a sliding column 4-2, water spray nozzles 4-3, and a water inlet 4-4, the fixed pipe 4-1 is provided with three, the sliding column 4-2 is fixedly connected to the inner sides of the three fixed pipes 4-1, the water spray nozzles 4-3 are provided with a plurality of water spray nozzles 4-3, the water spray nozzles 4-3 are uniformly arranged on the outer side of the fixed pipe 4-1, the lower end of the fixed pipe 4-1 is provided with the water inlet 4-4, the lower ends of the three fixed pipes 4-1 are circumferentially rotated on the outer wall of the water through cavity 3-3, the water inlet 4-4 is communicated with the water through hole 3-4 by a hose, so that water passes through the fixed pipe 4-1, is sprayed out from a plurality of water nozzles 4-3 on the fixed pipe 4-1.
The fifth concrete implementation mode:
the embodiment is described below with reference to fig. 1-11, and the embodiment is further described in the following, the transmission column 5 includes an electric motor iii 5-1 and a threaded column 5-2, the threaded column 5-2 is fixedly connected to an output shaft of the electric motor iii 5-1, and the electric motor iii 5-1 is fixedly connected in a motor fixing seat ii 3-5.
The sixth specific implementation mode:
the embodiment is described below with reference to fig. 1 to 11, and the embodiment further describes the first embodiment, where the connecting frame assembly 6 includes a connecting frame 6-1, threaded holes 6-2, and sliding pipes 6-3, the middle portion of the connecting frame 6-1 is provided with the threaded holes 6-2, the threaded holes 6-2 are connected to the threaded columns 5-2 through threaded transmission, the sliding pipes 6-3 are provided with three sliding pipes 6-3, the three sliding pipes 6-3 are respectively rotatably connected to three end portions of the connecting frame 6-1, and the three sliding pipes 6-3 are respectively slidably connected to the three sliding columns 4-2.
The seventh embodiment:
the embodiment is described below with reference to fig. 1 to 11, and the embodiment is further described, wherein the pulley 8 comprises two pulleys i 8-1, the two pulleys i 8-1 are provided, and the two pulleys i 8-1 are respectively fixedly connected to the right sides of the rotating shafts of the two pulleys 8.
The specific implementation mode is eight:
the embodiment is described below with reference to fig. 1-11, and the embodiment is further described in the following, the electric motor i 10 includes a belt pulley ii 10-1, the belt pulley ii 10-1 is fixedly connected to an output shaft of the electric motor i 10, and the belt pulley ii 10-1 and two belt pulleys i 8-1 are in transmission connection through two belts 9 respectively.
The specific implementation method nine:
the embodiment is described below with reference to fig. 1 to 11, and the embodiment is further described in the present embodiment, where the motor ii 11 includes a gear 11-1, the gear 11-1 is fixedly connected to an output shaft of the motor ii 11, the gear 11-1 is connected to the gear ring 2-1 through gear meshing transmission, when in use, the gear 11-1 is driven by the output shaft of the motor ii 11 to rotate, and simultaneously, the gear 11-1 is driven by the gear ring 2-1 to mesh transmission, so as to drive the rotating base 3 to rotate on the base 2.
The detailed implementation mode is ten:
the present embodiment will be described with reference to fig. 1 to 11, and the present embodiment will further describe the first embodiment, in which the seal ring 12 is rotatably connected in the seal hole 3 to 7.
The utility model discloses an agricultural water-saving irrigation device, its theory of operation is: when the device is used, the number of the devices is adjusted according to the area of water spraying irrigation as required, then two pulleys 8 of the water spraying device slide into a sliding rail 1, then a motor I10 is started, an output shaft of the motor I10 drives a belt pulley II 10-1 to rotate, the belt pulley II 10-1 drives two belt pulleys I8-1 to rotate through two belts 9, the two pulleys 8 move in the sliding rail 1 under the driving of the two belt pulleys I8-1 respectively, the motor I10 can rotate reversely, so that the water spraying device is controlled to reciprocate in the sliding rail 1, then the motor II 11 is started, a gear 11-1 rotates under the driving of an output shaft of the motor II 11, a rotating body 3-1 rotates in a seat body 2-3 under the meshing transmission of the gear 11-1 and a toothed ring 2-1, and then the motor III-1 is started, the output shaft of the motor III 5-1 drives the threaded column 5-2 to rotate, the threaded column 5-2 is matched with the threaded hole 6-2 through threads, the up-and-down movement of the connecting frame 6-1 is controlled, the sliding connection between the sliding pipe 6-3 at the end part of the connecting frame 6-1 and the sliding column 4-2 is realized, the rotating angle of the fixed pipe 4-1 is adjusted by controlling the height of the connecting frame 6-1 on the threaded column 5-2, then water enters the base 2 through the water through pipe 7, then enters the water through cavity 3-3 along the communicating pipe 2-2, and then is sprayed into a field through the plurality of water nozzles 4-3 on the fixed pipe 4-1, and the irrigation of crops is completed.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention also belong to the protection scope of the present invention.

Claims (10)

1. The utility model provides an agricultural water-saving irrigation device, includes slide rail (1), base (2), transmission post (5), water service pipe (7), belt (9), motor I (10) and motor II (11), water service pipe (7) fixed connection is at the right-hand member of base (2), motor I (10) fixed connection is at the middle part of base (2) lower extreme, its characterized in that: the agricultural water-saving irrigation device further comprises a rotary seat (3), spray pipes (4), a connecting frame assembly (6), pulleys (8) and a sealing ring (12), wherein the rotary seat (3) is rotatably connected to the upper end of the base (2), the transmission column (5) is fixedly connected to the upper end of the rotary seat (3), the connecting frame assembly (6) is in threaded transmission connection with the transmission column (5), the number of the spray pipes (4) is three, the lower ends of the three spray pipes (4) are circumferentially and uniformly and rotatably connected to the rotary seat (3), the three spray pipes (4) are respectively in sliding connection with the three end portions of the connecting frame assembly (6), the motor II (11) is fixedly connected to the lower end of the inner wall of the rotary seat (3), the motor II (11) is in transmission connection with the inner wall of the upper end of the base (2), the pulleys (8) are provided with two, and the two pulleys (8) are rotatably connected to the front end and the back, the belt (9) are provided with two, two pulleys (8) are respectively connected with the motor I (10) through two belt (9) transmissions, the upper end of the base (2) is sleeved with the sealing ring (12), and the sealing ring (12) is rotatably connected in the rotating seat (3).
2. An agricultural water-saving irrigation device according to claim 1, characterized in that: base (2) include ring gear (2-1), communicating pipe (2-2) and pedestal (2-3), ring gear (2-1) fixed connection is on the inner wall of pedestal (2-3) upper end, be provided with communicating pipe (2-2) in pedestal (2-3), and two ports of communicating pipe (2-2) set up respectively in the middle part of pedestal (2-3) right-hand member and the middle part of pedestal (2-3) upper end, water service pipe (7) fixed connection is in the port department of communicating pipe (2-2) that is located pedestal (2-3) right-hand member middle part, sealing ring (12) cover is established in the port department of communicating pipe (2-2) that is located pedestal (2-3) upper end middle part.
3. An agricultural water-saving irrigation device according to claim 2, characterized in that: the rotary seat (3) comprises a rotary body (3-1), a motor fixing seat I (3-2), a water through cavity (3-3), a water through hole (3-4), a motor fixing seat II (3-5), a rotary cavity (3-6) and a sealing hole (3-7), wherein the motor fixing seat I (3-2) is fixedly connected onto the inner wall of the rotary cavity (3-6), a motor II (11) is fixedly connected into the motor fixing seat I (3-2), the water through cavity (3-3) is arranged at the upper end inside the rotary body (3-1), the rotary cavity (3-6) is arranged at the lower end inside the rotary body (3-1), the sealing hole (3-7) is arranged in the middle of a partition plate between the water through cavity (3-3) and the rotary cavity (3-6), the three water through holes (3-4) are arranged, the three water through holes (3-4) are respectively and circumferentially arranged on the water through cavities (3-3), and the middle of the upper end of the rotating body (3-1) is provided with a motor fixing seat II (3-5).
4. An agricultural water-saving irrigation device according to claim 3, characterized in that: the water spraying pipe (4) comprises three fixed pipes (4-1), a sliding column (4-2), water spraying nozzles (4-3) and water inlets (4-4), the number of the fixed pipes (4-1) is three, the sliding column (4-2) is fixedly connected to the inner sides of the three fixed pipes (4-1), the number of the water spraying nozzles (4-3) is multiple, the water spraying nozzles (4-3) are uniformly arranged on the outer side of the fixed pipes (4-1), the water inlets (4-4) are arranged at the lower end of the fixed pipes (4-1), the lower ends of the three fixed pipes (4-1) circumferentially rotate on the outer wall of the water through cavity (3-3), and the water inlets (4-4) are communicated with the water through holes (3-4) through hoses.
5. An agricultural water-saving irrigation device according to claim 4, characterized in that: the transmission column (5) comprises a motor III (5-1) and a threaded column (5-2), the threaded column (5-2) is fixedly connected to an output shaft of the motor III (5-1), and the motor III (5-1) is fixedly connected into a motor fixing seat II (3-5).
6. An agricultural water-saving irrigation device according to claim 5, characterized in that: the connecting frame assembly (6) comprises a connecting frame (6-1), threaded holes (6-2) and sliding pipes (6-3), the threaded holes (6-2) are formed in the middle of the connecting frame (6-1), the threaded holes (6-2) are connected to threaded columns (5-2) through threaded transmission, the number of the sliding pipes (6-3) is three, the three sliding pipes (6-3) are respectively connected to the three ends of the connecting frame (6-1) in a rotating mode, and the three sliding pipes (6-3) are respectively connected to the three sliding columns (4-2) in a sliding mode.
7. An agricultural water-saving irrigation device according to claim 6, characterized in that: pulley (8) are including pulley I (8-1), pulley I (8-1) is provided with two, and two pulley I (8-1) fixed connection respectively are on the right side of two pulley (8) axis of rotation.
8. An agricultural water-saving irrigation device according to claim 7, characterized in that: the motor I (10) comprises a belt pulley II (10-1), the belt pulley II (10-1) is fixedly connected to an output shaft of the motor I (10), and the belt pulley II (10-1) is in transmission connection with the two belt pulleys I (8-1) through two belts (9) respectively.
9. An agricultural water-saving irrigation device according to claim 8, characterized in that: the motor II (11) comprises a gear (11-1), the gear (11-1) is fixedly connected to an output shaft of the motor II (11), and the gear (11-1) is in meshing transmission connection with the gear ring (2-1).
10. An agricultural water-saving irrigation device according to claim 9, wherein: the sealing ring (12) is rotatably connected in the sealing hole (3-7).
CN201921599319.5U 2019-09-25 2019-09-25 Agricultural water-saving irrigation device Expired - Fee Related CN210782387U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921599319.5U CN210782387U (en) 2019-09-25 2019-09-25 Agricultural water-saving irrigation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921599319.5U CN210782387U (en) 2019-09-25 2019-09-25 Agricultural water-saving irrigation device

Publications (1)

Publication Number Publication Date
CN210782387U true CN210782387U (en) 2020-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921599319.5U Expired - Fee Related CN210782387U (en) 2019-09-25 2019-09-25 Agricultural water-saving irrigation device

Country Status (1)

Country Link
CN (1) CN210782387U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115462300A (en) * 2022-09-23 2022-12-13 北京和众必拓科技有限公司 Land self-propelled sprinkling irrigation machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115462300A (en) * 2022-09-23 2022-12-13 北京和众必拓科技有限公司 Land self-propelled sprinkling irrigation machine

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Granted publication date: 20200619

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