An intelligent water and fertilizer irrigation device and method with a fixed pipe network in the field

Abstract

The present invention relates to the field of irrigation technology, and specifically relates to a fixed pipe network type intelligent water and fertilizer irrigation device and method for large fields, including a mobile support structure. A central column is rotatably arranged on the mobile support structure, and mobile wheels are rotatably arranged at both ends of the central column. A plurality of winding and unwinding discs are rotatably arranged on the central column along its axial direction, and a locking structure for locking its position with the central column is arranged on each winding and unwinding disc; an irrigation pipeline is wound around the outside of the winding and unwinding disc, and a conveying pipeline structure for realizing the connection and conveying of water and fertilizer liquid with each other is arranged between the winding and unwinding discs; through the mutual cooperation and coordination among the mobile support structure, the winding and unwinding disc, the conveying pipeline structure, the irrigation pipeline, the pipeline support wheel structure, the positioning structure, the locking structure, etc., the laying of the irrigation pipeline can be quickly realized, and the winding of the irrigation pipeline during mechanized operation can be achieved, without affecting large-area mechanized operation.

Description

Technical Field

[0001] The invention relates to the technical field of irrigation, and in particular to a large-field fixed pipe network type intelligent water and fertilizer irrigation device and method. Background Art

[0002] With the development of Internet of Things technology, intelligent water and fertilizer irrigation is to automatically detect, adjust and supply water and fertilizer according to the water and fertilizer requirements of different crops, as well as the soil nutrient content and environmental conditions, reducing labor input costs and improving irrigation and fertilization efficiency and fertilizer and water utilization. However, existing manual sprinkler irrigation and surface pipe irrigation have the problem of large labor input and affect mechanized operations;

[0003] A large-scale fixed pipe network intelligent water-fertilizer irrigation method with publication number CN114766172B determines a large-scale field test area, and sets a field pipe network system integrating water-fertilizer pipes and ditches in the test area; arranges the water-fertilizer pipes in the field irrigation system according to the pipe spacing-spray spacing ratio method; sets an information collection system in the test area to collect the development status, environmental data and meteorological data information of crops in the test area; transmits the collected crop development status information to a server terminal, and the user determines the reasonable ratio of nitrogen, phosphorus, potassium, water and fertilizer according to the crop development status, and sends the water-fertilizer ratio information to a pump room, and completes the automatic ratio of water and fertilizer at the pump room;

[0004] However, current irrigation equipment is prone to interference when large-scale mechanized operations are carried out in the field, and the irrigation pipes are not convenient to spread and reel. Summary of the invention

[0005] Technical issues solved

[0006] The purpose of the present invention is to provide a large field fixed pipe network type intelligent water and fertilizer irrigation device and method in order to solve the above problems.

[0007] Technical Solution

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] The present invention provides a field fixed pipe network type intelligent water and fertilizer irrigation device, comprising a mobile support structure, a central column is rotatably provided on the mobile support structure, and moving wheels are rotatably provided at both ends of the central column, and a plurality of retractable disks are rotatably provided on the central column along its axial direction, and each retractable disk is provided with a locking structure for realizing the locking of the position of the retractable disk with the central column;

[0010] An irrigation pipe is wound around the outer side of the retractable disk, and a delivery pipe structure for communicating with the irrigation pipe and delivering water and fertilizer liquid is provided between the retractable disks;

[0011] The mobile support structure is provided with a pipe support wheel structure for supporting the irrigation pipeline, and a positioning structure for fixing to the ground is provided at the end of the irrigation pipeline;

[0012] A plurality of water outlet holes are formed in the irrigation pipeline along its length direction, and a drip irrigation position adjusting structure is detachably arranged at each water outlet hole.

[0013] Furthermore, a pipe winding and unwinding groove for winding and unwinding the irrigation pipeline is formed in the outer circumference of the winding and unwinding disc. A rotation hole is formed at the center of the winding and unwinding disc. An adjusting sleeve is rotatably arranged inside the rotation hole through a bearing. The adjusting sleeve is slidably sleeved outside the central column. Fixing bolts for tightly abutting against the central column are threadedly connected to the side walls at both ends of the adjusting sleeve. Sealing retaining rings are arranged inside both ends of the rotation hole, and the cross-sectional shape of the sealing retaining ring is J-shaped.

[0014] Furthermore, the clamping structure includes an electric telescopic rod fixedly arranged inside the winding and unwinding disc. The push rod head end of the electric telescopic rod extends into the rotation hole and is fixedly connected with a clamping block. An annular clamping groove for clamping and cooperating with the clamping block is formed in the outer circumference of the adjusting sleeve.

[0015] Furthermore, the conveying pipeline structure includes a first conveying hole formed in the winding and unwinding disc. One end of a second conveying hole is communicated with the first conveying hole, and the other end of the second conveying hole is connected to the irrigation pipeline. Pipe joints are arranged at both ports of the first conveying hole. A connecting pipeline is arranged between two adjacent winding and unwinding discs, and both ends of the connecting pipeline are respectively connected to the pipe joints on the two winding and unwinding discs.

[0016] Furthermore, the positioning structure includes a positioning ring. One side of the positioning ring is connected to one end of a connecting rope belt, and the other end of the connecting rope belt is connected to the end of the irrigation pipeline. A nail inserting hole is formed through the positioning ring, and a ground inserting nail is detachably arranged in the nail inserting hole.

[0017] Furthermore, the drip irrigation position adjusting structure includes a water receiving hopper. The cross-sectional shape of the water receiving hopper is V-shaped. Clamps are respectively fixedly connected to the V-shaped openings at both ends of the water receiving hopper through hanging plates. A drip irrigation hole is formed in the middle position of the V-shaped tip of the water receiving hopper.

[0018] Furthermore, the mobile support structure includes a cross beam. Side supports are fixedly arranged at both ends of the cross beam. The two side supports are respectively rotatably connected to both ends of the central column. A hanging rod is hinged and connected to the middle position of the cross beam through a hinge seat. Vertical rods are fixedly arranged on the lower sides at both ends of the cross beam.

[0019] Further, the pipeline support wheel structure includes a cross bar, both ends of the cross bar are fixedly connected to the side brackets respectively, a plurality of suspension rods evenly distributed are fixedly connected to the lower side of the cross bar along its length direction by bolts, the number of the suspension rods corresponds to that of the winding and unwinding discs one by one, a wheel seat is fixedly arranged at the lower end of the suspension rod, a support wheel is rotatably arranged on the wheel seat, an annular pipe groove is formed in the outer side of the support wheel along its circumferential direction, and a positioning support rod is fixedly arranged at the bottom side of the wheel seat.

[0020] Further, more than three linkage shaft rods are detachably arranged on the outer side of the winding and unwinding disc along its circumferential direction, more than three clamping sleeves are fixedly arranged along the edges of the two winding and unwinding discs located on the outer side, a second fastening bolt for tightly abutting against the linkage shaft rod is threadedly connected to the outer side wall of the clamping sleeve, more than three bayonets for clamping the linkage shaft rod are formed in the outer sides of the remaining winding and unwinding discs along their edges, side hanging platforms are fixedly arranged on the inner sides of the two side brackets respectively, a hanging hole for inserting the end of the linkage shaft rod is formed in the side hanging platform, and a first fastening bolt for tightly fixing the linkage shaft rod in the hanging hole is threadedly connected to the side hanging platform.

[0021] A fixed pipe network type intelligent water and fertilizer irrigation method for large fields comprises the following steps:

[0022] S1: After planting in the large field, adjust the distance between the winding and unwinding discs on the central column according to the row spacing of the planted crops, loosen the fastening of the fixing bolt to the central column, at this time, the adjusting sleeve can move along the axial direction of the central column, and after adjustment, the fixing bolt is used again to fix the adjusting sleeve on the central column.

[0023] S2: Remove the linkage shaft rod from the winding and unwinding disc, then place it between the two side hanging platforms, use the first fastening bolt to tightly fix the linkage shaft rod in the hanging hole, and then fix the positioning structure arranged at the end of the irrigation pipeline to the ground, and insert the nail hole from the nail hole of the positioning ring into the ground.

[0024] S3: Connect the moving support structure with an external vehicle body. When the external vehicle body moves, it can drive the moving support structure to move through the moving wheels. During the movement, since the end of the irrigation pipeline is fixed to the ground through the positioning structure, the winding and unwinding disc is pulled to rotate, so as to realize the unwinding and spreading of the irrigation pipeline. Among them, the irrigation pipeline is placed on the support wheel, which is convenient for the smooth spreading of the irrigation pipeline.

[0025] S4: After the irrigation pipeline is spread out, connect the irrigation pipelines on each winding and unwinding disc with each other through the connecting pipeline, then connect the pipe joint with the external irrigation infusion interface, and install each drip irrigation position adjustment structure at the water outlet hole on the irrigation pipeline to finely adjust the drip irrigation position, so as to realize the irrigation of water and fertilizer.

[0026] S5: When large-scale rotary tillage operations are carried out on large fields, in order to prevent the irrigation pipes from affecting large-scale operations, the irrigation pipes need to be retracted, the positioning structure is separated from the ground, the fixation of the irrigation pipes is loosened, and the movable bracket structure is fixed relative to the ground by the vertical pole, the positioning support rod is fixed in contact with the ground, the locking structure is fixed relative to the retractable disk and the center column, and the output shaft of the drive motor rotates to drive the rotation of the center column, thereby realizing the retraction of the irrigation pipe by the retractable disk. After the retraction is completed, the linkage shaft is erected and fixed on the outside of the retractable disk. Beneficial Effects

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Through the coordination and cooperation among the mobile support structure, the retractable disc, the conveying pipe structure, the irrigation pipe, the pipe support wheel structure, the positioning structure and the locking structure, the irrigation pipe can be quickly spread and rolled up during mechanized operation without affecting large-scale mechanized operation;

[0029] 2. The retractable disc can be moved and adjusted along the axis of the central column by adjusting the sleeve, so as to adjust the spacing of the retractable discs, which is suitable for drip irrigation of crops with different row spacings;

[0030] 3. The locking structure can realize the mode conversion of the reel-in disk to rotate or lock relative to the center column, thereby realizing the conversion of the reel-in disk's unwinding and rewinding states;

[0031] 4. The positioning structure can fix the end of the irrigation pipe, thereby cooperating with the retractable disc to unwind the irrigation pipe;

[0032] 5. Install various drip irrigation position adjustment structures at the water outlets on the irrigation pipes, and fine-tune the drip irrigation position by adjusting the position of the drip irrigation position adjustment structures on the irrigation pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a main structural schematic diagram of the present invention;

[0035] Figure 2 The present invention Figure 1 A schematic diagram of a top view structure;

[0036] Figure 3 The present inventionFigure 1 Schematic diagram of the three-dimensional structure;

[0037] Figure 4 This is the present invention Figure 3 Partially enlarged schematic diagram of the structure at position A of the present invention;

[0038] Figure 5 Schematic diagram of the cross-sectional structure of the winding and unwinding disc of the present invention;

[0039] Figure 6 This is the present invention Figure 5 Partially enlarged schematic diagram of the structure at position B of the present invention;

[0040] Figure 7 This is the present invention Figure 5 Partially enlarged schematic diagram of the structure at position C of the present invention;

[0041] Figure 8 This is the present invention Figure 1 Schematic diagram of the three-dimensional structure in another direction of the present invention;

[0042] Figure 9 This is the present invention Figure 8 Partially enlarged schematic diagram of the structure at position D of the present invention;

[0043] Figure 10 Schematic diagram of the three-dimensional structure of the drip irrigation position adjustment structure of the present invention;

[0044] Figure 11 Schematic diagram of the cross-sectional structure of the drip irrigation position adjustment structure of the present invention.

[0045] Explanation of the reference numerals is as follows: 1. Mobile support structure; 101. Cross beam; 102. Side support; 103. Hinge seat; 104. Suspension rod; 105. Side hanging platform; 106. Support and release platform; 107. Hanging hole; 108. First set screw; 109. Vertical rod; 2. Winding and unwinding disc; 201. Adjusting sleeve; 202. Annular clamping groove; 203. Bearing; 204. Sealing retaining ring; 205. Clamping sleeve; 206. Second set screw; 207. Bayonet; 3. Conveying pipeline structure; 301. First conveying hole; 302. Second conveying hole; 303. Pipe joint; 304. Connecting pipeline; 4. Irrigation pipeline; 401. Water outlet hole; 5. Mobile wheel; 501. Driving motor; 6. Pipeline support wheel structure; 601. Suspension rod; 602. Wheel seat; 603. Support wheel; 604. Positioning support rod; 605. Cross bar; 7. Positioning structure; 701. Positioning ring; 702. Plug hole; 703. Ground plug; 704. Connecting cord; 8. Drip irrigation position adjustment structure; 801. Water receiving hopper; 802. Drip irrigation hole; 803. Hanging plate; 804. Clamp; 9. Linkage shaft rod; 10. Central column; 11. Clamping structure; 1101. Electric telescopic rod; 1102. Clamping block. Detailed implementation manners

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope protected by the present invention.

[0047] See Figures 1 - 11 As shown, the present invention provides a fixed pipe network type intelligent water and fertilizer irrigation device for fields, including a mobile support structure 1. A central column 10 is rotatably arranged on the mobile support structure 1. Moving wheels 5 are rotatably arranged at both ends of the central column 10. A plurality of winding and unwinding discs 2 are rotatably arranged on the central column 10 along its axial direction. A locking structure 11 for locking its position with the central column 10 is arranged on each winding and unwinding disc 2; An irrigation pipe 4 is wound around the outside of the winding and unwinding disc 2. A conveying pipe structure 3 for communicating with the irrigation pipe 4 with each other and conveying water and fertilizer liquid is arranged between the winding and unwinding discs 2; A pipe support wheel structure 6 for supporting the irrigation pipe 4 is arranged on the mobile support structure 1. A positioning structure 7 for fixing with the ground is arranged at the end of the irrigation pipe 4; A plurality of water outlet holes 401 are arranged along the length direction of the irrigation pipe 4. A drip irrigation position adjusting structure 8 is detachably arranged at each water outlet hole 401.

[0048] See the attached Figure 5 、 Figure 6 and Figure 7 As shown, a pipe winding and unwinding groove for winding and unwinding the irrigation pipe 4 is arranged along the circumferential direction on the outside of the winding and unwinding disc 2. A rotation hole is arranged at the center of the winding and unwinding disc 2. An adjusting sleeve 201 is rotatably arranged inside the rotation hole through a bearing 203. The adjusting sleeve 201 is slidably sleeved on the outside of the central column 10. Fixing bolts for tightly abutting against the central column 10 are threadedly connected to the side walls at both ends of the adjusting sleeve 201. Sealing retaining rings 204 are arranged on the inner sides at both ends of the rotation hole. The cross-sectional shape of the sealing retaining ring 204 is J-shaped. Through the above specific structural design, the sealing retaining ring 204 can shield and protect the bearing 203, avoiding the influence of soil particle impurities on the bearing 203. In addition, loosen the fixing bolts to tightly fix the central column 10, and then the adjusting sleeve 201 can be moved and adjusted along the axial direction of the central column 10, so as to adjust the distance between the winding and unwinding discs 2, suitable for drip irrigation of plants with different row spacings.

[0049] Among them, the clamping structure 11 includes an electric telescopic rod 1101 fixedly arranged in the winding and unwinding disc 2. The push rod head end of the electric telescopic rod 1101 extends into the rotation hole and is fixedly connected with a clamping block 1102. An annular clamping groove 202 for clamping and cooperating with the clamping block 1102 is formed on the outer side of the adjusting sleeve 201 along its circumferential direction. In practical applications, when the push rod of the electric telescopic rod 1101 reaches the maximum stroke, the clamping block 1102 is clamped into the annular clamping groove 202, thereby realizing the fixation of the winding and unwinding disc 2 relative to the position of the central column 10. Thus, when the central column 10 is driven to rotate by the driving motor 501, the winding and unwinding disc 2 thereon can be driven to rotate, and when the winding and unwinding disc 2 rotates, the irrigation pipeline 4 can be wound up.

[0050] See the attached instruction manual Figure 5 and Figure 6 As shown, the conveying pipeline structure 3 includes a first conveying channel 301 opened in the winding and unwinding disc 2. One end of the first conveying channel 301 is communicated with one end of a second conveying channel 302, and the other end of the second conveying channel 302 is connected to the irrigation pipeline 4. Pipe connectors 303 are arranged at both ports of the first conveying channel 301. A connecting pipeline 304 is arranged between two adjacent winding and unwinding discs 2, and both ends of the connecting pipeline 304 are respectively connected to the pipe connectors 303 on the two winding and unwinding discs 2.

[0051] See the attached instruction manual Figure 3 As shown, the positioning structure 7 includes a positioning ring 701. One side of the positioning ring 701 is connected to one end of a connecting rope 704, and the other end of the connecting rope 704 is connected to the end of the irrigation pipeline 4. A nail insertion hole 702 is formed through the positioning ring 701, and a ground nail 703 is detachably arranged in the nail insertion hole 702. When the irrigation pipeline 4 is laid out, the positioning structure 7 can fix the end of the irrigation pipeline 4.

[0052] The drip irrigation position adjusting structure 8 includes a water receiving hopper 801. The cross-sectional shape of the water receiving hopper 801 is V-shaped. Clamps 804 are respectively fixedly connected to both V-shaped openings at both ends of the water receiving hopper 801 through hanging plates 803, and a drip irrigation hole 802 is formed in the middle position of the V-shaped tip of the water receiving hopper 801.

[0053] The mobile support structure 1 includes a cross beam 101. Side supports 102 are fixedly arranged at both ends of the cross beam 101. The two side supports 102 are respectively rotatably connected to both ends of the central column 10. A hanging rod 104 is hingedly connected to the middle position of the cross beam 101 through a hinge seat 103. Vertical rods 109 are fixedly arranged on the lower sides of both ends of the cross beam 101.

[0054] The pipe support wheel structure 6 includes a cross bar 605. The two ends of the cross bar 605 are respectively fixedly connected to the side brackets 102. Along the length direction of the lower side of the cross bar 605, a number of uniformly distributed suspension rods 601 are fixedly connected by bolts. The number of the suspension rods 601 corresponds one by one to the number of the winding and unwinding discs 2. The lower end of the suspension rod 601 is fixedly provided with a wheel seat 602. A support wheel 603 is rotatably arranged on the wheel seat 602. An annular pipe groove is formed in the outer side of the support wheel 603 along its circumferential direction. A positioning support rod 604 is fixedly arranged on the bottom side of the wheel seat 602.

[0055] On the outer side of the winding and unwinding disc 2, more than three linkage shaft rods 9 are detachably arranged along its circumferential direction. On the two winding and unwinding discs 2 located on the outer side, more than three clamping sleeves 205 are fixedly arranged along their edges. A second set screw 206 for tightly abutting against the linkage shaft rod 9 is threadedly connected to the outer side wall of the clamping sleeve 205. On the outer side of the remaining winding and unwinding discs 2, more than three bayonets 207 for clamping the linkage shaft rod 9 are formed along their edges. On the inner sides of the two side brackets 102, side hanging platforms 105 are respectively fixedly arranged. A hanging hole 107 for inserting the end of the linkage shaft rod 9 is formed in the side hanging platform 105. A first set screw 108 for tightly fixing the linkage shaft rod 9 in the hanging hole 107 is threadedly connected to the side hanging platform 105. In practical applications, the linkage shaft rod 9 plays a role in blocking and limiting the outer edge of the winding and unwinding disc 2, and is used to prevent the irrigation pipe 4 from spreading outwards from the wound state.

[0056] The working principle and technical effect of the present invention:

[0057] After planting in the field, adjust the spacing of the winding and unwinding disc 2 on the central column 10 according to the row spacing of the planted crops. Loosen the fastening of the fixing bolt to the central column 10. At this time, the adjusting sleeve 201 can move axially along the central column 10. After adjustment, fix the adjusting sleeve 201 on the central column 10 again by the fixing bolt; Remove the linkage shaft rod 9 from the winding and unwinding disc 2, and then place it between the two side hanging platforms 105. Fasten the linkage shaft rod 9 in the hanging hole 107 by the first fastening bolt 108. Then fix the positioning structure 7 provided at the end of the irrigation pipe 4 to the ground. Insert the nail hole 702 of the positioning ring 701 into the ground from the nail hole 702 of the positioning structure 7; Connect the mobile support structure 1 with the external vehicle body. When the external vehicle body moves, it can drive the mobile support structure 1 to move through the mobile wheels 5. During the movement, since the end of the irrigation pipe 4 is fixed to the ground through the positioning structure 7, the winding and unwinding disc 2 is pulled to rotate, realizing the unwinding and spreading of the irrigation pipe 4. Among them, the irrigation pipe 4 is supported on the support wheel 603 to facilitate the smooth spreading of the irrigation pipe 4; After the irrigation pipe 4 is spread out, connect the irrigation pipes 4 on each winding and unwinding disc 2 to each other through the connecting pipe 304. Then connect the pipe joint 303 with the external irrigation infusion interface. Install each drip irrigation position adjustment structure 8 on the water outlet hole 401 of the irrigation pipe 4 to finely adjust the drip irrigation position to realize the irrigation of water and fertilizer; When carrying out large-area rotary tillage operation on the field, in order to avoid the influence of the irrigation pipe 4 on the large-area operation, it is necessary to retract the irrigation pipe 4. Separate the positioning structure 7 from the ground, loosen the fixation of the irrigation pipe 4, fix the mobile support structure 1 relative to the ground by the vertical rod 109, and the positioning support rod 604 realizes the contact fixation with the ground. The clamping structure 11 realizes the relative fixation of the winding and unwinding disc 2 and the central column 10. The output shaft of the driving motor 501 rotates to drive the central column 10 to rotate, thereby realizing the retraction of the irrigation pipe 4 by the winding and unwinding disc 2. After retraction, fix the linkage shaft rod 9 outside the winding and unwinding disc 2.

[0058] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A fixed pipe network type intelligent water and fertilizer irrigation device for large fields, characterized by: The mobile support structure (1) comprises a central column (10) rotatably provided on the mobile support structure (1), movable wheels (5) rotatably provided at both ends of the central column (10), a plurality of receiving and releasing disks (2) rotatably provided on the central column (10) along its axial direction, and each receiving and releasing disk (2) is provided with a locking structure (11) for achieving a position locking between the receiving and releasing disk and the central column (10); An irrigation pipe (4) is wound around the outside of the retractable disk (2), and a delivery pipe structure (3) is provided between the retractable disks (2) for achieving communication with the irrigation pipe (4) and delivering water and fertilizer liquid; The mobile support structure (1) is provided with a pipe support wheel structure (6) for supporting the irrigation pipe (4), and the end of the irrigation pipe (4) is provided with a positioning structure (7) for fixing to the ground; The irrigation pipe (4) is provided with a plurality of water outlet holes (401) along its length direction, and each of the water outlet holes (401) is provided with a detachable drip irrigation position adjustment structure (8); The outer side of the retractable disk (2) is provided with a pipe retractable groove for retracting and releasing the irrigation pipe (4) along its circumferential direction; a rotating hole is provided at the center of the retractable disk (2); an adjusting sleeve (201) is rotatably arranged on the inner side of the rotating hole via a bearing (203); the adjusting sleeve (201) is slidably sleeved on the outer side of the central column (10); fixing bolts for achieving a tight abutment against the central column (10) are threadedly connected on the side walls at both ends of the adjusting sleeve (201); sealing retaining rings (204) are arranged on the inner sides of both ends of the rotating hole; the cross-section of the sealing retaining ring (204) is in a J-shape; The locking structure (11) comprises an electric telescopic rod (1101) fixedly arranged in the retractable disk (2); the push rod head end of the electric telescopic rod (1101) extends into the rotating hole and is fixedly connected to a locking block (1102); and an annular locking groove (202) for locking and cooperating with the locking block (1102) is formed on the outer side of the adjusting sleeve (201) along its circumferential direction; The delivery pipeline structure (3) comprises a first delivery channel (301) provided in the receiving and releasing disk (2); the first delivery channel (301) is connected to one end of a second delivery channel (302); the other end of the second delivery channel (302) is connected to an irrigation pipeline (4); pipe joints (303) are provided at two ends of the first delivery channel (301); a connecting pipeline (304) is provided between two adjacent receiving and releasing disks (2); and two ends of the connecting pipeline (304) are respectively connected to the pipe joints (303) on the two receiving and releasing disks (2).

2. According to claim 1, a field fixed pipe network type intelligent water and fertilizer irrigation device is characterized in that: The positioning structure (7) comprises a positioning ring (701), one side of the positioning ring (701) is connected to one end of a connecting rope (704), the other end of the connecting rope (704) is connected to the end of the irrigation pipe (4), and a nail insertion hole (702) is formed through the positioning ring (701), and a ground nail (703) is detachably provided in the nail insertion hole (702).

3. According to claim 2, a field fixed pipe network type intelligent water and fertilizer irrigation device is characterized in that: The drip irrigation position adjustment structure (8) comprises a water receiving bucket (801), the cross-section of the water receiving bucket (801) is V-shaped, the V-shaped openings at both ends of the water receiving bucket (801) are fixedly connected to clamps (804) via hanging plates (803), and a drip irrigation hole (802) is provided in the middle of the V-shaped tip of the water receiving bucket (801).

4. According to claim 3, a field fixed pipe network type intelligent water and fertilizer irrigation device is characterized in that: The mobile support structure (1) comprises a crossbeam (101), side supports (102) are fixedly provided at both ends of the crossbeam (101), the two side supports (102) are rotatably connected to the two ends of the central column (10), a hanging rod (104) is hingedly connected to the middle of the crossbeam (101) via a hinge seat (103), and vertical rods (109) are fixedly provided at the lower sides of both ends of the crossbeam (101).

5. According to claim 4, a field fixed pipe network type intelligent water and fertilizer irrigation device is characterized in that: The pipeline support wheel structure (6) comprises a cross bar (605), the two ends of which are respectively fixedly connected to the side bracket (102), and the lower side of the cross bar (605) is fixedly connected to a plurality of evenly distributed suspension rods (601) along its length direction by bolts, the number of suspension rods (601) and the number of storage trays (2) corresponding to each other, a wheel seat (602) is fixedly provided at the lower end of the suspension rod (601), a support wheel (603) is rotatably provided on the wheel seat (602), an annular pipe groove is provided on the outer side of the support wheel (603) along its circumferential direction, and a positioning support rod (604) is fixedly provided on the bottom side of the wheel seat (602).

6. According to claim 5, a field fixed pipe network type intelligent water and fertilizer irrigation device is characterized in that: The outer side of the storage tray (2) is detachably provided with three or more linkage shafts (9) evenly distributed along its circumferential direction; the two storage trays (2) located on the outer side are fixedly provided with three or more locking sleeves (205) along their edges; the outer side walls of the locking sleeves (205) are threadedly connected with second locking bolts (206) for locking and abutting the linkage shaft (9); the outer sides of the remaining storage trays (2) are provided with three or more locking holes (207) for locking the linkage shaft (9) along their edges; the inner sides of the two side brackets (102) are respectively fixedly provided with side hanging platforms (105); the side hanging platforms (105) are provided with hanging holes (107) for inserting the ends of the linkage shafts (9); the side hanging platforms (105) are threadedly connected with first locking bolts (108) for locking the linkage shafts (9) in the hanging holes (107).

7. A method for large-scale fixed pipe network type intelligent water and fertilizer irrigation, using the large-scale fixed pipe network type intelligent water and fertilizer irrigation device according to claim 6, characterized in that: The following steps are involved: S1: After planting in the field is completed, the spacing of the retractable disk (2) on the central column (10) is adjusted according to the row spacing of the plants, and the fixing bolts used to fix the central column (10) are loosened. At this time, the adjusting sleeve (201) can move along the axial direction of the central column (10). After the adjustment is completed, the fixing bolts are used to fix the adjusting sleeve (201) on the central column (10) again; S2: The linkage shaft rod (9) is removed from the retractable disk (2), and then placed between the two side hanging platforms (105). The linkage shaft rod (9) is fixed in the hanging hole (107) by the first fixing bolt (108). Then, the positioning structure (7) provided at the end of the irrigation pipe (4) is fixed to the ground, and the pin hole (702) is inserted into the ground from the pin hole (702) of the positioning ring (701); S3: The movable support structure (1) is connected to the external vehicle body. When the external vehicle body moves, it can drive the movable support structure (1) to move via the movable wheel (5). During the movement, since the end of the irrigation pipe (4) is fixed to the ground via the positioning structure (7), the retractable disc (2) is pulled to rotate, thereby realizing the release and spreading of the irrigation pipe (4). The irrigation pipe (4) is supported on the support wheel (603), which facilitates the smooth spreading of the irrigation pipe (4); S4: After the irrigation pipe (4) is spread out, the irrigation pipes (4) on the respective retractable disks (2) are connected to each other through the connecting pipe (304), and then the pipe joint (303) and the external irrigation infusion interface are connected to each other, and each drip irrigation position adjustment structure (8) is installed at the water outlet hole (401) on the irrigation pipe (4) to fine-tune the drip irrigation position, so as to achieve irrigation of water and fertilizer; S5: When a large area of ​​rotary tillage is performed on a field, in order to prevent the irrigation pipe (4) from affecting the large area operation, the irrigation pipe (4) needs to be retracted, the positioning structure (7) is separated from the ground, the fixation of the irrigation pipe (4) is loosened, the vertical rod (109) realizes the fixation of the movable support structure (1) relative to the ground, the positioning support rod (604) realizes the contact fixation with the ground, the locking structure (11) realizes the relative fixation of the retractable disk (2) and the central column (10), the output shaft of the drive motor (501) rotates to drive the central column (10) to rotate, thereby realizing the retractable disk (2) to retract the irrigation pipe (4), after the retracting is completed, the linkage shaft (9) is erected and fixed on the outer side of the retractable disk (2).

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