CN210537912U

CN210537912U - Farmland irrigation system

Info

Publication number: CN210537912U
Application number: CN201920967096.7U
Authority: CN
Inventors: 雷亮; 孙占龙; 程光玉; 胡宇光; 张可
Original assignee: Boyada Survey Planning And Design Group Co Ltd
Current assignee: Boyada Survey Planning And Design Group Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-05-19
Anticipated expiration: 2029-06-25

Abstract

The utility model relates to the technical field of crop irrigation, and discloses a farmland irrigation system, which comprises a base, a carrier arranged above the base, and a sprinkling irrigation device arranged on the base, wherein a fixing device is arranged below the base; the fixing device comprises a driving assembly, a cross rod which is connected with the driving assembly and can move horizontally, and a hydraulic support leg which is arranged at the end part of the cross rod departing from the base; two grooves are formed in the two sides of the base in the length direction at intervals; the end surfaces of the grooves, which are close to the transmission shaft, are provided with through holes; the cross bar moves horizontally along the through hole. The utility model has the advantages of it is following and effect: it can make the difficult production of sprinkling irrigation machine rock, job stabilization.

Description

Farmland irrigation system

Technical Field

The utility model relates to a crops irrigation technical field, in particular to farmland irrigation system.

Background

The farmland water-saving irrigation system adopts the principle of adapting to local conditions to select different irrigation facilities according to different requirements of different regions and different crops, and utilizes advanced technologies such as a computer, wireless data communication, an acquisition controller and a sensor to monitor and manage the farmland irrigation, so as to ensure that the water required by the growth of the crops is properly met in time, thereby achieving the purposes of water-saving irrigation and water-saving irrigation automation. The traditional irrigation system has single function, only irrigation can be performed, the water pumping device needs to be opened through manual operation, and the water quantity in the bucket body cannot be controlled.

At present, chinese utility model patent that publication number is CN208657553U discloses an agricultural sprinkling irrigation machine, the on-line screen storage device comprises a base, the upside fixedly connected with carrier of base, the downside of putting the thing platform is equipped with fixed establishment, the first motor of upside fixedly connected with drive of carrier, the drive end fixedly connected with dwang of the first motor of drive, the upper end fixedly connected with landing slab of dwang, the upside of landing slab is equipped with sprinkling irrigation mechanism.

Above-mentioned technical scheme can conveniently inject the contact pin into the mud soil through setting up fixed establishment to be convenient for fix the sprinkling irrigation machine, make it can not take place to rock at the course of the work, nevertheless have following defect: when the sprinkler is stopped on the ground with loose soil, the contact pins are inserted into the soil, so that the sprinkler is not well fixed, and shaking is easily caused; when the sprinkler is stopped on a tight ground, it is difficult to secure the sprinkler by inserting the pins into the ground.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a farmland irrigation system, it can make the difficult production of sprinkling irrigation machine rock job stabilization.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a farmland irrigation system comprises a base, a carrier arranged above the base and a sprinkling irrigation device arranged on the base, wherein a fixing device is arranged below the base; the fixing device comprises a driving assembly, a cross rod which is connected with the driving assembly and can move horizontally, and a hydraulic support leg which is arranged at the end part of the cross rod departing from the base; two grooves are formed in the two sides of the base in the length direction at intervals; the end surfaces of the grooves, which are close to the transmission shaft, are provided with through holes; the cross bar moves horizontally along the through hole.

By adopting the technical scheme, the driving assembly is arranged to extend the cross rod contracted in the base, so that the hydraulic support legs can extend out of the base, and the hydraulic support legs are controlled to be abutted against the ground, so that the sprinkler is placed stably and is not easy to shake; the through hole is formed in the end face, close to the transmission shaft, of the groove, so that the cross rod can be provided with a supporting point, and the cross rod can stably extend in the extending process.

The utility model is further arranged in that the driving component comprises a first motor arranged at one end of the base in the length direction, a transmission shaft which is connected with an output shaft of the first motor and the other end of which is rotatably arranged on the base, a first gear which is connected with the transmission shaft and is positioned at a position close to the first motor, and a second gear which is connected with the transmission shaft and is positioned at the end part deviating from the first motor; a limiting plate is arranged at the end part of the cross rod positioned in the base; the cross rods are all meshed with the driving assembly; the cross rod comprises a first rod, a second rod, a third rod and a fourth rod, wherein the first rod is meshed with the upper part of the first gear and stretches out and draws back towards one side of the base, the second rod is meshed with the lower part of the first gear and stretches out and draws back towards the other side of the base, the third rod is meshed with the upper part of the second gear and stretches out and draws back towards one side of the base, which is provided with the first rod, and the fourth rod is meshed with the lower part of the second gear and stretches out and draws back towards.

By adopting the technical scheme, the motor is arranged to drive the transmission shaft to rotate, so that the first gear arranged on the transmission shaft rotates, the first rod meshed with the upper part of the first gear can extend towards the direction departing from the first gear, and the second rod meshed with the lower part of the first gear extends towards the direction departing from the first gear; install second gear and the synchronous rotation of first gear on the transmission shaft for the third pole with second gear top meshing stretches out to the direction that deviates from the second gear, stretches out to the direction that deviates from the second gear with the fourth pole of second gear below meshing simultaneously, thereby makes four poles of installing in the base stretch out simultaneously. Because the tip of horizontal pole is equipped with the limiting plate, is favorable to preventing horizontal pole and gear disengagement. The hydraulic support leg is simple in arrangement and can ensure that the hydraulic support leg can simultaneously extend out of the base and abut against the ground.

The utility model is further arranged in that the hydraulic support leg comprises a hydraulic cylinder vertically sleeved on the cross rod, a hydraulic sensor arranged above the hydraulic cylinder and a chassis arranged below a piston rod of the hydraulic cylinder; and the base is provided with a controller electrically connected with the hydraulic sensor.

By adopting the technical scheme, the hydraulic sensor is arranged, so that whether different support legs are completely contacted with the ground or not can be monitored in real time, the controller controls the hydraulic support legs to extend out of the corresponding length corresponding to the height of the ground to be abutted against the ground, and when the pressure on the four support legs measured by the hydraulic sensor is the same as the set abutting pressure, the extension of the hydraulic support legs is stopped; when the hydraulic support legs need to be retracted, the hydraulic support legs are retracted through the controller and are received into the grooves through the driving assembly, and therefore the situation that the hydraulic support legs extend out of the grooves too wide to affect movement of the sprinkler is avoided.

The utility model discloses further set up as, the one end of base length direction is equipped with first support, the other end that the base is located length direction is equipped with the second support, rotate the two-way lead screw of locating between first support and second support, rotate the auxiliary rod that locates between first support and second support and be parallel with two-way lead screw, slide the first slide of the length direction tip of locating two-way lead screw and auxiliary rod, slide the length direction of locating two-way lead screw and auxiliary rod and deviate from the second slide of the tip of first slide; the base is provided with a second motor on the end face of the first support, which is away from the second support; the carrier is arranged on the first sliding seat and the second sliding seat.

Through adopting above-mentioned technical scheme, set up two-way lead screw, only through a motor control, can practice thrift the energy consumption, can slide first slide and second slide along two-way lead screw to position in opposite directions to the position of carrier upper end risees, thereby the height of adjustable shower nozzle adapts to the sprinkling irrigation demand of the plant of co-altitude not.

The utility model discloses further set up to, sprinkling irrigation equipment is connected with the outlet pipe, locates the connecting pipe that the outlet pipe deviates from the tip of water tank, locates the shower nozzle of connecting pipe tip including installing the water tank on the base, locating the water pump in the water tank, the play water end of water pump.

Through adopting above-mentioned technical scheme, take the water in the water tank out the connecting pipe through the water pump for the water of connecting pipe passes through the shower nozzle blowout, thereby reaches the effect of sprinkling irrigation.

The utility model discloses further set up as, the carrier includes that one end articulates in to first slide and the other end and the position articulated first support frame, the one end of connecting pipe position at outlet pipe both ends articulate on the second slide and the other end and the position articulated second support frame that the connecting pipe is located the outlet pipe both ends.

By adopting the technical scheme, the first support frame can support the connecting pipe on one hand, and the lifting or lowering of the object carrier can be realized by controlling the distance between the bottom of the first support frame and the bottom of the second support frame on the other hand.

The utility model is further arranged that the water tank is arranged on the base and positioned between the two-way screw rod and the auxiliary rod and positioned at the middle position of the base in the length direction; and limiting blocks are respectively arranged at the positions, close to the two sides of the water tank, of the two-way screw rod and the auxiliary rod in the length direction.

Through adopting above-mentioned technical scheme, set up the stopper, be favorable to avoiding first slide and second slide to collide the water tank in sliding.

The utility model is further arranged in that the spray head is a water pressure automatic rotating spray head, which comprises a water column, three filling columns which are evenly distributed along the circumferential direction of the water column and are vertical to the water column, and water spray holes which are arranged along the length direction of the filling columns at intervals; the lower end of the water column is rotationally and dynamically sealed with the connecting part, and the other end of the connecting part is connected with the connecting pipe; the irrigation columns are communicated with the water column.

Through adopting above-mentioned technical scheme, when water got into the shower nozzle from the connecting pipe, because irritate the setting of post for the hole for water spraying sets up along the circumference symmetry of water column, produces different lateral action to the water column, thereby makes water column and connecting portion produce rotatoryly, thereby makes every hole for water spraying spray every corner with different corners, makes to irrigate more evenly, and the coverage area is bigger.

The utility model is further arranged in that the connecting part comprises a bearing sleeved on the retaining ring, an end cover arranged on the bearing and a sealing cover fixedly connected with the circumferential direction of the end cover; the sealed lid communicates with the inside of water column, and the other end and the connecting pipe of sealed lid are connected.

Through adopting above-mentioned technical scheme, with sealed lid and end cover fixed connection, when receiving hydraulic reaction force for the water column can be realized through the bearing and sealed rotation between the lid. A sealing ring is arranged between the sealing cover and the circumferential direction of the baffle ring of the water column, so that water flow is effectively reduced from flowing out of the joint of the sealing cover and the water column.

To sum up, the utility model discloses a beneficial technological effect does:

1. the driving assembly is arranged to extend the cross rod contracted in the base, so that the hydraulic support legs can extend out of the base, and then the hydraulic support legs are controlled to abut against the ground, so that the sprinkler is placed stably and is not prone to shaking;

2. when water enters the spray head from the connecting pipe, the arrangement of the irrigation columns enables the water spray holes to be symmetrically arranged along the circumferential direction of the water column, different lateral acting forces are generated on the water column, the water column and the connecting part rotate, and therefore each water spray hole is sprayed to each corner in different corners, irrigation is more uniform, and the coverage area is larger;

3. set up two-way lead screw, only through a motor control, can practice thrift the energy consumption, can slide first slide and second slide to position in opposite directions along two-way lead screw to the position of carrier upper end risees, thereby the height of adjustable shower nozzle adapts to the sprinkling irrigation demand of the plant of co-altitude not.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view of a base structure of the embodiment;

FIG. 3 is a schematic view of a fixing device according to an embodiment;

FIG. 4 is a schematic view of the location of a through hole of an embodiment;

fig. 5 is a schematic view of the internal structure of the head according to the embodiment.

Reference numerals: 1. a base; 11. a groove; 12. a through hole; 13. a controller; 14. a first support; 15. a second support; 16. a bidirectional screw rod; 161. a first slider; 162. a second slide carriage; 163. a limiting block; 17. an auxiliary lever; 18. a second motor; 2. a carrier; 21. a first support frame; 22. a second support frame; 3. a fixing device; 31. a drive assembly; 311. a first motor; 312. a drive shaft; 313. a first gear; 314. a second gear; 32. a cross bar; 321. a first lever; 322. a second lever; 323. a third lever; 324. a fourth bar; 325. a limiting plate; 33. a hydraulic leg; 331. a hydraulic cylinder; 332. a hydraulic pressure sensor; 333. a chassis; 4. a sprinkling irrigation device; 41. a water tank; 42. a water pump; 43. a water outlet pipe; 44. a connecting pipe; 45. a spray head; 451. a water column; 452. filling the column; 453. a water spray hole; 454. a baffle ring; 5. a connecting portion; 51. a bearing; 52. an end cap; 53. a sealing cover; 54. a threaded post.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the farmland irrigation system comprises a base 1 in the shape of a hollow rectangular plate, a carrier 2 arranged above the base 1, a fixing device 3 arranged on the base 1, and a sprinkling irrigation device 4 arranged on the carrier 2. Two grooves 11 are arranged on two sides of the base 1 in the length direction at intervals. The sprinkling irrigation device 4 comprises a water tank 41 arranged on the base 1, a water pump 42 arranged in the water tank 41, a water outlet pipe 43 connected with the water outlet end of the water pump 42, a connecting pipe 44 vertically communicated with the end part of the water outlet pipe 43 departing from the water tank 41, and a spray head 45 communicated with the end part of the connecting pipe 44.

As shown in fig. 2, a first support 14 is perpendicularly welded to one end of the base 1 in the length direction, a second support 15 is perpendicularly welded to the other end of the base 1 in the length direction, a bidirectional screw 16 is rotatably arranged between the first support 14 and the second support 15, an auxiliary rod 17 is rotatably arranged between the first support 14 and the second support 15 and is parallel to the bidirectional screw 16, a first slide carriage 161 is slidably arranged at the end of the bidirectional screw 16 and the auxiliary rod 17 in the length direction, and a second slide carriage 162 is slidably arranged at the end of the bidirectional screw 16 and the auxiliary rod 17 in the length direction and is away from the first slide carriage 161. The water tank 41 is arranged on the base 1 and located between the bidirectional screw rod 16 and the auxiliary rod 17 and located at the middle position of the base 1 in the length direction, and the two-way screw rod 16 and the auxiliary rod 17 are respectively and fixedly provided with a limiting block 163 at the positions in the length direction and close to the two sides of the water tank 41. The end face of the base 1, which is located at the first support 14 and faces away from the second support 15, is provided with a second motor 18.

The carrier rack 2 is mounted on a first slide 161 and a second slide 162. The carrier 2 comprises a first support 21 with one end hinged to the first slide carriage 161 and the other end hinged to the connecting pipe 44 at the two ends of the water outlet pipe 43, and a second support 22 with one end hinged to the second slide carriage 162 and the other end hinged to the connecting pipe 44 at the two ends of the water outlet pipe 43.

As shown in fig. 3, the fixing device 3 includes a driving assembly 31 installed inside the base 1, a cross bar 32 engaged with the driving assembly 31 and horizontally movable, and a hydraulic leg 33 installed at an end of the cross bar 32 facing away from the base 1. The end surfaces of the grooves 11 close to the transmission shaft 312 are provided with through holes 12 corresponding to the cross bars 32. Under the action of the driving assembly 31, the cross bar 32 moves horizontally along the through hole 12 (as shown in fig. 4), and the end face of the cross bar 32 engaged with the driving assembly 31 is rack-shaped.

The driving assembly 31 includes a first motor 311 installed at one end of the base 1 in the length direction, a transmission shaft 312 connected to an output shaft of the first motor 311 and having the other end rotatably installed at an end of the base 1 away from the motor, a first gear 313 connected to the transmission shaft 312 and located at a position close to the first motor 311, and a second gear 314 connected to the transmission shaft 312 and located at an end of the base 1 away from the first motor 311. A limiting plate 325 vertical to the length direction of the cross bar 32 is welded at the end part of the cross bar 32 in the base 1. The cross bar 32 includes a first bar 321 engaged with the upper side of the first gear 313 and extending and contracting toward one side of the base 1, a second bar 322 engaged with the lower side of the first gear 313 and extending and contracting toward the other side of the base 1, a third bar 323 engaged with the upper side of the second gear 314 and extending and contracting toward one side of the base 1 where the first bar 321 is disposed, and a fourth bar 324 engaged with the lower side of the second gear 314 and extending and contracting toward one side of the base 1 where the second bar 322 is disposed.

The hydraulic leg 33 includes a hydraulic cylinder 331 vertically sleeved and fixed on the cross bar 32, a hydraulic sensor 332 installed on the hydraulic cylinder 331, and a chassis 333 fixedly installed below a piston rod of the hydraulic cylinder 331, and the controller 13 (shown in fig. 2) is installed on the base 1, and the model of the controller 13 is STM8S003F3P 6.

As shown in fig. 5, the sprinkler 45 is a hydraulic automatic rotating sprinkler, and includes a water column 451 having a baffle ring 454 formed at a lower end thereof, three filling columns 452 uniformly distributed along a circumferential direction of the water column 451 and perpendicular to the water column 451, and water spray holes 453 spaced apart along a length direction of the filling columns 452. The lower end of the water column 451 is rotatably sealed with the connection part 5, and the other end of the connection part 5 is connected with the connection pipe 44. The connecting portion 5 includes a bearing 51 sleeved on the retaining ring 454, an end cover 52 mounted on the bearing 51, and a sealing cover 53 fixedly connected with the end cover 52 in the circumferential direction. The circumference that end cover 52 and sealed lid 53 contacted is attacked has the external screw thread, and the position that sealed lid 53 and end cover 52 contacted is attacked has the internal thread that matches with the external screw thread. The lower end part of the sealing cover 53 departing from the water column 451 is formed with a threaded column 54 with a radial size smaller than that of the water column 451, the threaded column 54 is communicated with the inside of the water column 451, and the other end of the threaded column 54 is in threaded connection with the inside of the connecting pipe 44.

This embodiment is when using, soil moisture content sensor gathers soil moisture in real time to send to GPRS sprinkling irrigation machine controller through the zigBee network, GPRS sprinkling irrigation machine controller synthesizes the soil moisture content condition of whole landmass and the operational aspect of sprinkling irrigation machine and deep well pump and puts the back and send to well accuse central computer. The sprinkling irrigation machines in all irrigation areas are uniformly and centrally controlled, the system adopts GPRS wireless network communication, is not limited by geographical positions and is flexible in distribution. The irrigation area water spray quantity carries out full-automatic irrigation operation according to soil moisture content and crop water demand, does not need personnel to intervene, and the working performance is stable. The sprinkler controller 13 can monitor the working state of the sprinkler and the deep well pump in real time, and when the sprinkler or the deep well pump is in abnormal condition, the GPRS sprinkler controller cuts off the power supply for the first time. The measurement and control terminal supports the remote maintenance function, and the central control computer can remotely set parameters through the channel management module. The field maintenance efficiency is greatly improved. The measurement and control terminal is provided with lightning protection measures and is provided with a ground wire terminal, and a power supply incoming line is connected with a lightning arrester. An isolation serial port is adopted between the measurement and control terminal and the flowmeter, so that the damage of the thunder to the equipment is prevented to the maximum extent.

The stability that the sprinkling irrigation machine placed need be guaranteed when meetting the road conditions of ground height. When the sprinkling machine needs to be fixed, the first motor 311 is started, so that the cross rod 32 extends out of the base 1, the hydraulic support legs 33 are controlled to be in contact with the ground, and the hydraulic sensor 332 is arranged to judge whether the sprinkling machine is placed stably to adjust the height of the hydraulic support legs 33. When the sprinkling machine does not need to be fixed, the hydraulic support legs 33 are firstly controlled to be retracted to the shortened limit position, and then the first motor 311 is controlled to rotate reversely, so that the cross rods 32 are retracted towards the inside of the base 1, and the hydraulic support legs 33 are accommodated in the grooves 11 without influencing the normal use of the sprinkling machine.

When the farmland is required to be irrigated, the water in the water tank 41 is transported to the connecting pipe 44 by starting the water pump 42, and after the water of the connecting pipe 44 reaches the spray head 45, the spray head 45 can automatically rotate to spray water to irrigate due to the arrangement of the spray head 45, so that the irrigation effect is better.

When sprinkling irrigation is carried out on a higher plant, the second motor 18 is controlled to be started, so that the first sliding seat 161 and the second sliding seat 162 slide towards opposite directions, the first supporting frame 21 and the second supporting frame 22 are lifted, and the height of the sprayer 45 is increased to adapt to sprinkling irrigation of plants with different heights. If sprinkling irrigation is carried out on a lower plant, the second motor 18 is rotated reversely, so that the first sliding seat 161 and the second sliding seat 162 slide towards the direction of deviation, the carrier frame 2 is lowered, and the position of the spraying head 45 is lowered.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a farmland irrigation system, includes base (1), arranges carrier (2) of base (1) top in, locates sprinkling irrigation equipment (4) on base (1), characterized by: a fixing device (3) is arranged below the base (1); the fixing device (3) comprises a driving assembly (31), a cross rod (32) which is connected with the driving assembly (31) and can move horizontally, and a hydraulic support leg (33) which is arranged at the end part of the cross rod (32) departing from the base (1); two grooves (11) are arranged on two sides of the base (1) in the length direction at intervals; the end surfaces of the grooves (11) close to the transmission shaft (312) are provided with through holes (12); the cross bar (32) moves horizontally along the through hole (12).

2. An agricultural irrigation system according to claim 1, wherein: the driving assembly (31) comprises a first motor (311) arranged at one end of the base (1) in the length direction, a transmission shaft (312) connected with an output shaft of the first motor (311) and the other end of the transmission shaft is rotatably arranged on the base (1), a first gear (313) connected with the transmission shaft (312) and positioned close to the first motor (311), and a second gear (314) connected with the transmission shaft (312) and positioned at the end part departing from the first motor (311); a limiting plate (325) is arranged at the end part of the cross rod (32) positioned in the base (1); the cross rods (32) are all meshed with the driving assembly (31); the transverse rod (32) comprises a first rod (321) which is meshed with the upper part of the first gear (313) and stretches out and draws back towards one side of the base (1), a second rod (322) which is meshed with the lower part of the first gear (313) and stretches out and draws back towards the other side of the base (1), a third rod (323) which is meshed with the upper part of the second gear (314) and stretches out and draws back towards one side of the base (1) provided with the first rod (321), and a fourth rod (324) which is meshed with the lower part of the second gear (314) and stretches out and draws back towards one side of the base (1) provided with the second rod (322).

3. An agricultural irrigation system according to claim 1, wherein: the hydraulic support legs (33) comprise hydraulic cylinders (331) vertically sleeved on the cross rods (32), hydraulic sensors (332) arranged above the hydraulic cylinders (331), and chassis (333) arranged below piston rods of the hydraulic cylinders (331); and a controller (13) electrically connected with the hydraulic sensor (332) is arranged on the base (1).

4. An agricultural irrigation system according to claim 1, wherein: a first support (14) is arranged at one end of the base (1) in the length direction, a second support (15) is arranged at the other end of the base (1) in the length direction, a bidirectional screw rod (16) is rotatably arranged between the first support (14) and the second support (15), an auxiliary rod (17) is rotatably arranged between the first support (14) and the second support (15) and is parallel to the bidirectional screw rod (16), a first slide seat (161) is slidably arranged at the end parts of the bidirectional screw rod (16) and the auxiliary rod (17) in the length direction, and a second slide seat (162) is slidably arranged at the end parts of the bidirectional screw rod (16) and the auxiliary rod (17) in the length direction and deviates from the first slide seat (161); a second motor (18) is arranged on the end face, located on the first support (14) and departing from the second support (15), of the base (1); the luggage carrier (2) is arranged on the first sliding seat (161) and the second sliding seat (162).

5. An agricultural irrigation system according to claim 1, wherein: the sprinkling irrigation device (4) comprises a water tank (41) arranged on the base (1), a water pump (42) arranged in the water tank (41), a water outlet end of the water pump (42) is connected with a water outlet pipe (43), a connecting pipe (44) vertically arranged at the end part of the water outlet pipe (43) deviating from the water tank (41), and a spray head (45) arranged at the end part of the connecting pipe (44).

6. An agricultural irrigation system according to claim 1, wherein: the carrier (2) comprises a first support frame (21) and a second support frame (22), wherein one end of the first support frame is hinged to the first sliding seat (161), the other end of the first support frame is hinged to the position, located at the two ends of the water outlet pipe (43), of the connecting pipe (44), one end of the second support frame is hinged to the second sliding seat (162), and the other end of the second support frame is hinged to the position, located at the two ends of the water outlet pipe (43), of the connecting pipe (.

7. An agricultural irrigation system according to claim 5, wherein: the water tank (41) is arranged on the base (1), is positioned between the bidirectional screw rod (16) and the auxiliary rod (17) and is positioned in the middle of the base (1) in the length direction; and the positions of the two-way screw rod (16) and the auxiliary rod (17) in the length direction and close to the two sides of the water tank (41) are respectively provided with a limiting block (163).

8. An agricultural irrigation system according to claim 5, wherein: the sprinkler (45) is a water pressure automatic rotating sprinkler (45) and comprises a water column (451), three filling columns (452) which are uniformly distributed along the circumferential direction of the water column (451) and are vertical to the water column (451), and water spraying holes (453) which are arranged along the length direction of the filling columns (452) at intervals; the lower end of the water column (451) is rotationally and dynamically sealed with the connecting part (5), and the other end of the connecting part (5) is connected with the connecting pipe (44); the filling columns (452) are communicated with the water column (451).

9. An agricultural irrigation system according to claim 8, wherein: the connecting part (5) comprises a bearing (51) sleeved on the retaining ring (454), an end cover (52) arranged on the bearing (51), and a sealing cover (53) fixedly connected with the end cover (52) in the circumferential direction; the sealing cover (53) is communicated with the inside of the water column (451), and the other end of the sealing cover (53) is connected with the connecting pipe (44).