Center pivot type sprinkler

By introducing a central movable seat and an offset movable seat into the center pivot sprinkler, combined with a ball-jointed terrain compensation device, the problem of equipment operation stability in complex terrain is solved, and irrigation uniformity and efficiency are improved.

CN120694145APending Publication Date: 2025-09-26JIANGSU ZHONGSHUI IRRIGATION & DRAINAGE EQUIP CO LTD
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Patent Information

Application Number
CN202510969364.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-15
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

Existing center-pivot sprinklers have poor operating stability in complex terrain and are unable to quickly adapt to terrain changes with slopes ≥5° or large lateral height differences, resulting in water flow interruption or pipeline damage, affecting irrigation uniformity and increasing maintenance costs.

Method used

The main pipe is driven to move flexibly by the central moving seats at both ends and the middle offset moving seat. Combined with the ball-hinged terrain compensation device, the position and angle compensation of the main pipe are achieved, ensuring the synchronous spraying of the irrigation branches and adapting to various irrigation paths.

Benefits of technology

It improves the applicability and irrigation uniformity of the equipment in complex terrain, ensures comprehensive irrigation coverage of farmland, takes into account equipment stability and irrigation efficiency, and reduces pipeline stress concentration and damage.

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Abstract

The invention discloses a central fulcrum shaft type sprinkling machine which comprises a plurality of main pipelines, a central fulcrum shaft and a central fulcrum shaft, the number of the center moving seats is two, the two center moving seats are arranged at the two ends of the whole equipment respectively, and output pipelines of the center moving seats are connected with the input end of the main pipeline; and the frame end of the offset moving seat is connected with the main pipeline and is connected with the central moving seat through the main pipeline. According to the center fulcrum shaft type sprinkling machine, stable supporting is provided through the center moving seats arranged at the two ends, the center moving seats are matched with the middle offset moving seats to drive the main pipeline to move flexibly, and the center fulcrum shaft type sprinkling machine can adapt to various irrigation paths such as circular irrigation paths and linear irrigation paths; the terrain compensation devices between the adjacent main pipelines can effectively relieve the influence caused by ground fluctuation, and the applicability under the complex terrain is improved; the irrigation branch pipes distributed along the main pipeline synchronously spray along with the movement of the equipment, so that uniform farmland irrigation and comprehensive coverage are ensured, and the equipment stability, the terrain adaptability and the irrigation efficiency are considered.
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Description

Technical Field

[0001] The present application relates to the technical field of sprinklers, and in particular to a center pivot sprinkler. Background Art

[0002] In the field of agricultural irrigation, center-pivot sprinklers are widely used due to their wide coverage and high degree of automation. However, existing equipment has significant defects when dealing with undulating terrain or changes in slope: the main pipelines of traditional sprinklers mostly use rigid connections. When the equipment passes through non-plain terrain such as hills and gentle slopes, adjacent pipelines are prone to relative offset due to the height difference of the ground, resulting in stress concentration at the connection, which in turn causes problems such as pipe twisting, breakage or leakage. Although some equipment is equipped with simple compensation structures, most of them are passive mechanical connections (such as universal joints or flexible hoses), which can only achieve displacement compensation of a limited angle and lack active drive adjustment capabilities. It is difficult to quickly adapt to terrain changes with slopes ≥5° or large lateral height differences. This makes the existing sprinklers have poor operating stability in complex terrain, and water flow interruptions or pipe damage are prone to occur during the irrigation process, which not only affects the uniformity of irrigation but also increases the cost of equipment maintenance. Summary of the Invention

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, one of the purposes of this application is to provide a center-pivot sprinkler, which provides stable support through the central moving seat set at both ends, and cooperates with the middle offset moving seat to drive the main pipe to move flexibly, which can adapt to various irrigation paths such as circular and straight lines; the terrain compensation device between adjacent main pipes can effectively alleviate the impact of ground undulations and improve applicability under complex terrain; the irrigation branches distributed along the main pipe spray synchronously with the movement of the equipment, ensuring uniform and comprehensive irrigation of farmland, taking into account equipment stability, terrain adaptability and irrigation efficiency.

[0005] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a center-pivot sprinkler, comprising: a plurality of main pipelines; two groups of center movable seats, the two groups of center movable seats being respectively arranged at both ends of the overall equipment, the output pipeline of the center movable seat being connected to the input end of the main pipeline; an offset movable seat, the frame end of the offset movable seat being connected to the main pipeline and connected to the center movable seat through the main pipeline, an offset movable wheel being provided at the bottom; a ball-hinged terrain compensation device being arranged between two adjacent groups of main pipelines, and when the adjacent main pipelines are offset, the ball-hinged terrain compensation device performs position and angle compensation; a plurality of irrigation branch pipes, the plurality of groups of irrigation branch pipes being distributed along the main pipeline.

[0006] According to the embodiment of the present application, the center-pivot sprinkler provides stable support through the central moving seats set at both ends, and cooperates with the middle offset moving seat to drive the main pipe to move flexibly, which can adapt to various irrigation paths such as circular and straight lines; the terrain compensation device between adjacent main pipes can effectively alleviate the impact of ground undulations and improve the applicability under complex terrain; the irrigation branches distributed along the main pipe spray synchronously with the movement of the equipment, ensuring uniform irrigation and comprehensive coverage of farmland, taking into account equipment stability, terrain adaptability and irrigation efficiency.

[0007] In addition, the center pivot sprinkler proposed in the present application may also have the following additional technical features:

[0008] In one embodiment of the present application, the ball-joint compensation device includes a first main pipe fixing frame, a second main pipe fixing frame, a reinforcement frame, a connecting pipe, a ball hinge seat and a compensation ball hinge shaft;

[0009] The first main pipe fixing frame and the second main pipe fixing frame are used to fix and connect the main pipe. One end of the connecting pipe is connected to the first main pipe fixing frame, and the other end is connected to the second main pipe fixing frame. A ball joint seat and a compensation ball joint shaft are respectively provided on the first main pipe fixing frame and the second main pipe fixing frame. The compensation ball joint shaft is rotatably connected to the mounting shaft of the ball joint seat.

[0010] In one embodiment of the present application, a drive mounting seat and a supplementary drive pump are also included, wherein the drive mounting seat is arranged on the second fixed frame of the main pipe, the supplementary drive pump is installed on the drive mounting seat, and the output end of the supplementary drive pump is connected to the end of the compensation ball joint shaft.

[0011] In one embodiment of the present application, end surfaces of the first main pipe fixing frame and the second main pipe fixing frame are both provided with reinforcement frames.

[0012] In one embodiment of the present application, the central movable seat includes: a central seat, on which a water pump is provided; a central support steel frame, which is provided on the top surface of the central seat; a pipe bearing, which is provided at the supporting end of the central support steel frame; a transfer tube, which rotates on the inner shaft of the pipe bearing, the output end of the transfer tube is connected to the input end of the main pipe, and the output end of the water pump is connected to the input end of the transfer tube.

[0013] In one embodiment of the present application, the center movable seat further includes: a movable wheel rotating shaft seat, which is four in number and is respectively arranged at the four corners of the center seat; a center movable wheel, which is connected to the rotating shaft of the movable wheel rotating shaft seat; and a trailer hook, which is arranged in front of the center seat.

[0014] In one embodiment of the present application, the offset moving seat comprises:

[0015] A main pipe mounting frame, which is used to install the main pipe; an offset seat, which is connected to the main pipe mounting frame through an offset support steel frame; a movable wheel support seat, which is in two groups, and the two groups of movable wheel support seats are respectively arranged at both ends of the offset seat, a driving rotary machine is provided between the movable wheel support seat and the offset seat, two groups of offset movable wheels are provided on the movable wheel support seat, and a movable wheel driving machine is provided between the movable wheel support seat and the movable wheel.

[0016] In one embodiment of the present application, an angle steel wire rack is further included, and the irrigation branch pipe includes a sprinkler hose and a sprinkler head. The sprinkler hose is connected to the main pipeline, and the sprinkler head is connected to the output end of the sprinkler hose.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A schematic diagram of the structure of a central pivot sprinkler according to the present application;

[0020] Figure 2 A schematic diagram of the structure of a center pivot movable seat in a center pivot sprinkler according to the present application;

[0021] Figure 3 Schematic diagram of the structure of the ball-shaft compensation device in the center pivot sprinkler according to the present application;

[0022] Figure 4 Schematic diagram of the structure of the offset movable seat in the center pivot sprinkler according to the present application;

[0023] Figure 5 Schematic diagram of the structure of the movable wheel support and its connecting parts in the center pivot sprinkler according to the present application;

[0024] Figure 6 Schematic diagram of the structure of the moving wheel drive mechanism and its connecting parts in the center pivot sprinkler according to the present application;

[0025] Figure 7 A schematic diagram of the structure of the irrigation branch pipe and its connecting parts in the central pivot sprinkler according to the present application;

[0026] Figure 8 A sprinkler irrigation route map.

[0027] As shown in the figure: 1. Center pivot movable seat; 2. Offset movable seat; 3. Ball shaft compensation device; 4. Main pipeline; 5. Irrigation branch pipe; 6. Angle steel wire rack; 101. Center seat; 102. Center support steel frame; 103. Pipe bearing; 104. Transfer pipe; 105. Connecting pipe; 106. Water pump; 107. Moving wheel rotating shaft seat; 108. Center moving wheel; 109. Trailer hook; 201. Main pipe mounting frame; 202. Offset Support steel frame; 203, offset seat; 204, offset moving wheel; 205, moving wheel support seat; 206, drive rotary machine; 207, moving wheel drive machine; 301, main pipe first fixed frame; 302, main pipe second fixed frame; 303, reinforcement frame; 304, connecting pipe; 305, ball hinge seat; 306, compensation ball hinge shaft; 307, drive mounting seat; 308, supplementary drive pump; 501, sprinkler hose; 502, sprinkler head. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0029] The center pivot sprinkler according to the embodiment of the present application will be described below with reference to the accompanying drawings.

[0030] like Figures 1-8 As shown, the center pivot sprinkler of the embodiment of the present application includes:

[0031] Main pipeline 4, the number is multiple groups;

[0032] There are two sets of central movable seats 1, which are respectively arranged at both ends of the overall equipment. The output pipes of the central movable seats 1 are connected to the input end of the main pipe 4;

[0033] The offset movable seat 2 has its frame end connected to the main pipe 4 and connected to the central movable seat 1 through the main pipe 4, and an offset movable wheel 204 is provided at its bottom;

[0034] The spherical joint terrain compensation device 3 is arranged between two adjacent sets of main pipes 4. When the adjacent main pipes 4 deviate, the spherical joint terrain compensation device 3 performs position and angle compensation.

[0035] There are multiple groups of irrigation branch pipes 5 , which are distributed along the main pipeline 4 .

[0036] Specifically, 1. Water source access and equipment startup:

[0037] The input pipes of the two sets of central movable bases 1 are connected to an external water source, such as a reservoir or well. When the water pump is started, water flows through the output pipes of the central movable base 1 and is injected into the main pipe 4. The water in the main pipe 4 passes through the connecting structure of the ball-jointed terrain compensation device 3, and then passes through each section of the main pipe in sequence to supply water to the irrigation branch pipe 5.

[0038] 2. Overall movement of the equipment:

[0039] The offset wheels 204 at the bottom of the offset moving base 2 rotate under the power of a drive system, such as a motor or hydraulic device, propelling the main pipe 4 along a pre-set irrigation path, such as a circular or straight line, with the two sets of central moving bases 1 serving as fulcrums. The offset wheels 204 can adjust their steering angle according to control system commands to adapt to changes in field boundaries or terrain.

[0040] 3. Terrain compensation adaptation:

[0041] When the equipment passes through an area with a slope of ≥5° or undulating ground, adjacent main pipes 4 are relatively deflected by the spherical joint terrain compensation device 3:

[0042] 1) Vertical direction: The compensation device allows the main pipeline 4 to tilt up and down, such as ±20°, to avoid water accumulation or rupture in the pipeline due to the terrain slope;

[0043] 2) Horizontal direction: The ball joint structure of the compensation device absorbs the horizontal height difference of the ground, allowing the main pipe 4 to deflect slightly to the left and right, such as ±10°, to maintain continuous water flow.

[0044] 4. Execution of irrigation operations:

[0045] Water in the main pipe 4 flows through the diversion interface and enters the irrigation branch pipe 5. It is then sprayed by the sprinkler head at the end (not numbered, simplified by features). During movement, the irrigation branch pipe 5 moves synchronously with the main pipe 4, covering the farmland on both sides of the main pipe, achieving uniform irrigation during movement.

[0046] 5. End of operation and transfer: After the irrigation is completed, the offset moving wheel 204 stops driving and the equipment pauses at the designated position.

[0047] In one embodiment of the present application, the ball-joint compensation device 3 includes a first main pipe fixing frame 301, a second main pipe fixing frame 302, a reinforcement frame 303, a connecting pipe 304, a ball hinge seat 305 and a compensation ball hinge shaft 306;

[0048] The first main pipe fixing frame 301 and the second main pipe fixing frame 302 are used to fix the main pipe 4. One end of the connecting pipe 304 is connected to the first main pipe fixing frame 301, and the other end is connected to the second main pipe fixing frame 301.

[0049] The first main pipe fixing frame 301 and the second main pipe fixing frame 302 are respectively provided with a ball hinge seat 305 and a compensation ball hinge shaft 306;

[0050] The compensation ball hinge shaft 306 is rotatably connected to the mounting shaft of the ball hinge seat 305.

[0051] Specifically, when two adjacent groups of main pipes 4 are relatively offset due to uneven ground, the compensation ball hinge shaft 306 rotates three-dimensionally in the ball hinge seat 305, allowing dynamic adjustment of the pitch, yaw and roll angles between the main pipe first fixing frame 301 and the main pipe second fixing frame 302.

[0052] During the displacement compensation process: the connecting pipe 304 transmits the displacement when the main pipe 4 is offset, driving the compensation ball hinge shaft 306 to rotate synchronously in the ball hinge seat 305, thereby absorbing the axial expansion and contraction and radial misalignment of the main pipe 4, and avoiding stress concentration caused by the rigid connection of the pipe.

[0053] In one embodiment of the present application, a drive mounting base 307 and a supplementary drive pump 308 are also included. The drive mounting base 307 is set on the second fixing frame 302 of the main pipe, and the supplementary drive pump 308 is installed on the drive mounting base 307. The output end of the supplementary drive pump 308 is connected to the end of the compensation ball joint shaft 306.

[0054] In this embodiment, when the main pipeline 4 deviates due to the terrain, the supplementary drive pump 308 receives a signal and applies power to the compensation ball joint shaft 306 through the drive mounting seat 307 to actively adjust the angle of the ball joint shaft. For example:

[0055] When the terrain slope is ≥5°, the pump force pushes the ball joint axis to deflect, such as ±20°, to assist the main pipeline 4 to quickly adapt to the terrain and avoid pipeline distortion;

[0056] The response time is ≤0.5 seconds, ensuring synchronization with terrain changes and improving complex terrain, such as Figure 8 Shows the adaptability of the intersection of circular trajectories;

[0057] Active compensation enhances the stability of the ball joint device, ensuring continuous water flow, allowing the sprinkler to operate efficiently on undulating ground, such as circular sprinkler areas, with no blind spots.

[0058] In one embodiment of the present application, a reinforcement frame 303 is provided on the end surfaces of the first main pipe fixing frame 301 and the second main pipe fixing frame 302 .

[0059] In this embodiment, the reinforcement frame 303 is arranged on the end faces of the first and second fixing frames 301 / 302 of the main pipe to enhance the torsional strength of the fixing frames, reduce the end face deformation when the main pipe 4 is offset, ensure the stable operation of the ball-hinged terrain compensation device 3, and improve the durability of the overall structure.

[0060] In one embodiment of the present application, the central moving seat 1 includes:

[0061] A center seat 101 is provided with a water pump 106;

[0062] The central support steel frame 102 is provided on the top surface of the central seat 101;

[0063] Pipe bearing 103, the pipe bearing 103 is arranged at the supporting end of the central supporting steel frame 102;

[0064] The transfer tube 104 rotates on the inner shaft of the pipe bearing 103 , the output end of the transfer tube 104 is connected to the input end of the main pipe 4 , and the output end of the water pump 106 is connected to the input end of the transfer tube 104 .

[0065] Specifically, water pump 106 delivers water to transfer pipe 104. Pipe bearing 103 allows transfer pipe 104 to rotate freely, ensuring continuous water flow even when main pipe 4 moves or turns. A central support steel frame 102 enhances structural stability and accommodates the vibration and pressure of the water pump during operation.

[0066] In one embodiment of the present application, the central movable seat 1 further comprises:

[0067] There are four sets of moving wheel rotating shaft seats 107, which are respectively arranged at the four corners of the center seat 101;

[0068] The central moving wheel 108 is connected to the rotating shaft of the moving wheel rotating shaft seat 107;

[0069] The trailer hook 109 is arranged in front of the center seat 101.

[0070] Specifically, the movable wheel rotating shaft seats 107 at the four corners of the center seat 101 can quickly adjust the position of the center movable wheel 108, which is convenient for the trailer to turn; the front trailer hook 109 is used for external traction, which is convenient for the transfer and transportation of equipment.

[0071] In one embodiment of the present application, the offset moving seat 2 includes:

[0072] The main pipe mounting frame 201 is used to install the main pipe 4;

[0073] The offset seat 203 is connected to the main mounting frame 201 through the offset support steel frame 202;

[0074] There are two groups of moving wheel support seats 205, and the two groups of moving wheel support seats 205 are respectively arranged at the two ends of the offset seat 203. A driving rotary machine 206 is arranged between the moving wheel support seat 205 and the offset seat 203. Two groups of offset moving wheels 204 are arranged on the moving wheel support seat 205, and a moving wheel driving machine 207 is arranged between the moving wheel support seat 205 and the moving wheel 204.

[0075] Specifically, the main pipe mounting frame 201 fixes the main pipe 4, and the offset seat 203 supports the weight of the main pipe through the steel frame; the driving rotary machine 206 of the moving wheel support seat 205 at both ends adjusts the steering of the offset moving wheel 204, and the moving wheel driving machine 207 provides power to push the main pipe to move and adapt to path changes.

[0076] In one embodiment of the present application, an angle steel wire rack 6 is further included. The irrigation branch pipe 5 includes a sprinkler hose 501 and a sprinkler head 502 . The sprinkler hose 501 is connected to the main pipeline 4 , and the sprinkler head 502 is connected to the output end of the sprinkler hose 501 .

[0077] Specifically, the angle steel wire frame 6 supports the irrigation branch pipe 5, and the sprinkler hose 501 transports water from the main pipe 4 to the sprinkler head 502, which realizes atomized spraying.

[0078] Water source access: The water pumps 106 of the two sets of central movable bases 1 draw water from the external water source and inject it into the main pipe 4 through the transfer pipe 104. The water flows through the ball-hinged compensation device 3 to penetrate each section of the main pipe and supply water to the irrigation branch pipe 5.

[0079] Equipment movement: The offset moving wheel 204 of the offset moving seat 2 rotates under the drive of the driving machine 207, with the central moving seat 1 at both ends as the fulcrum, pushing the main pipeline 4 along a preset path such as a circle or a straight line, and driving the rotating machine 206 to adjust the wheel group steering to adapt to the terrain.

[0080] Terrain compensation: When encountering slopes or undulations, the compensation ball hinge shaft 306 of the ball hinge compensation device 3 rotates in the ball hinge seat 305, allowing the main pipeline 4 to deflect vertically by ±20° and horizontally by ±10°, and the supplementary drive pump 308 actively assists in quickly adapting to complex terrain and avoiding pipeline stress.

[0081] Irrigation operation: The water flow in the main pipe 4 is diverted to the irrigation branch pipe 5, and is atomized and sprayed from the sprinkler head 502 through the sprinkler hose 501. As the main pipe moves, it covers the farmland on both sides, achieving uniform irrigation while moving.

[0082] Transfer adjustment: After the operation is completed, the offset moving wheel 204 stops driving and the equipment is paused; it can be towed to the next area through the trailer hook 109 of the central moving base 1, or the nozzle parameters can be adjusted to meet the needs of different crops.

[0083] In summary, the center-pivot sprinkler in the embodiment of the present application provides stable support through the center moving seats set at both ends, and cooperates with the middle offset moving seat to drive the main pipe to move flexibly, which can adapt to various irrigation paths such as circular and straight lines; the terrain compensation device between adjacent main pipes can effectively alleviate the impact of ground undulations and improve applicability under complex terrain; the irrigation branches distributed along the main pipe spray synchronously with the movement of the equipment, ensuring uniform irrigation and comprehensive coverage of the farmland, taking into account equipment stability, terrain adaptability and irrigation efficiency.

[0084] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0086] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A center pivot sprinkler, characterized in that: include: Main pipeline (4), the number is multiple groups; There are two sets of central movable seats (1), which are respectively arranged at both ends of the overall device, and the output pipes of the central movable seats (1) are connected to the input end of the main pipe (4); An offset movable seat (2), wherein the frame end of the offset movable seat (2) is connected to the main pipe (4) and connected to the central movable seat (1) through the main pipe (4), and an offset movable wheel (204) is provided at the bottom thereof; A spherical hinge type terrain compensation device (3) is arranged between two adjacent groups of the main pipelines (4), and when the adjacent main pipelines (4) are offset, the spherical hinge type terrain compensation device (3) performs position and angle compensation; There are multiple groups of irrigation branch pipes (5), and the multiple groups of irrigation branch pipes (5) are distributed along the main pipeline (4).

2. The center pivot sprinkler according to claim 1, characterized in that: The ball-shaft type compensation device (3) comprises a main pipe first fixing frame (301), a main pipe second fixing frame (302), a reinforcement frame (303), a connecting pipe (304), a ball hinge seat (305) and a compensation ball hinge shaft (306); The first main pipe fixing frame (301) and the second main pipe fixing frame (302) are used to fix and connect the main pipe (4); one end of the connecting pipe (304) is connected to the first main pipe fixing frame (301), and the other end is connected to the second main pipe fixing frame (301); The first main pipe fixing frame (301) and the second main pipe fixing frame (302) are respectively provided with a ball hinge seat (305) and a compensation ball hinge shaft (306); The compensation ball hinge shaft (306) is rotatably connected to the mounting shaft of the ball hinge seat (305).

3. The center pivot sprinkler according to claim 2, characterized in that: The invention also includes a drive mounting seat (307) and a supplementary drive pump (308), wherein the drive mounting seat (307) is arranged on the second fixing frame (302) of the main pipe, and the supplementary drive pump (308) is installed on the drive mounting seat (307), and the output end of the supplementary drive pump (308) is connected to the end of the compensation ball joint shaft (306).

4. The center pivot sprinkler according to claim 2, characterized in that: The end surfaces of the main pipe first fixing frame (301) and the main pipe second fixing frame (302) are both provided with a reinforcement frame (303).

5. The center pivot sprinkler according to claim 1, characterized in that: The central movable seat (1) comprises: A central seat (101), wherein a water pump (106) is provided on the central seat (101); A central support steel frame (102), the central support steel frame (102) being arranged on the top surface of the central seat (101); A pipe bearing (103), the pipe bearing (103) being arranged at a supporting end of the central supporting steel frame (102); A transfer tube (104) is rotated on the inner shaft of the pipeline bearing (103), the output end of the transfer tube (104) is connected to the input end of the main pipeline (4), and the output end of the water pump (106) is connected to the input end of the transfer tube (104).

6. The center pivot sprinkler according to claim 5, characterized in that: The central movable seat (1) further comprises: There are four sets of moving wheel rotating shaft seats (107), which are respectively arranged at the four corners of the central seat (101); a central moving wheel (108), the central moving wheel (108) being connected to the rotating shaft of the moving wheel rotating shaft seat (107); A trailer hook (109), the trailer hook (109) is arranged in front of the center seat (101).

7. The center pivot sprinkler according to claim 1, characterized in that: The offset movable seat (2) comprises: A main pipe mounting frame (201), the main pipe mounting frame (201) is used to install the main pipe (4); An offset seat (203), the offset seat (203) being connected to the main pipe mounting frame (201) via an offset support steel frame (202); There are two groups of moving wheel support seats (205), and the two groups of moving wheel support seats (205) are respectively arranged at both ends of the offset seat (203). A driving rotary machine (206) is arranged between the moving wheel support seats (205) and the offset seat (203). Two groups of offset moving wheels (204) are arranged on the moving wheel support seats (205), and a moving wheel driving machine (207) is arranged between the moving wheel support seats (205) and the moving wheels (204).

8. The center pivot sprinkler according to claim 1, characterized in that: It also includes an angle steel wire frame (6), and the irrigation branch pipe (5) includes a sprinkler hose (501) and a sprinkler head (502). The sprinkler hose (501) is connected to the main pipeline (4), and the sprinkler head (502) is connected to the output end of the sprinkler hose (501).

Citation Information

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