An adjustable sprinkler head device for irrigation machines

Abstract

This utility model discloses an adjustable sprinkler head device for irrigation machines, relating to the field of sprinkler head technology. Specifically, it includes a fixed pipe connected to the water outlet of the irrigation machine. A movable pipe is movably connected to the inner cavity of the fixed pipe, and a sprinkler head is connected to the top of the movable pipe. The movable pipe and the fixed pipe are sealed by a sealing assembly. The sealing assembly includes a sealing airbag ring connected to the bottom of the movable pipe, a positioning ring connected to the top of the movable pipe, a compression airbag ring connected to the top of the positioning ring, and a compression sleeve threaded to the top of the movable pipe. This adjustable sprinkler head device integrates an independent height adjustment function, achieving precise control of the sprinkler head's working height without relying on external additional adjustment structures. This allows the sprinkler head height to be flexibly adjusted according to actual irrigation needs, effectively avoiding the use of additional adjustment components in traditional designs, significantly simplifying the overall structure of the irrigation machine, and reducing system complexity and assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of sprinkler head technology, specifically to a sprinkler head device that can be adjusted up and down. Background Technology

[0002] As a core piece of equipment in modern agricultural irrigation systems, sprinkler irrigation machines typically consist of key components such as pump units, water pipelines, sprinkler heads, and a traveling mechanism. In actual operation, the sprinklers spray irrigation water to achieve field moisture coverage, and the flexible adjustment of the spraying range is crucial for adapting to different crop growth stages, terrain conditions, and water-saving needs. In existing technologies, to change the spraying range of sprinkler irrigation machines, adjustable sprinkler head designs are often used. For example, a novel horizontal-moving sprinkler irrigation machine disclosed in the authorized patent document with application number CN202320616753.X includes a base plate, a first motor fixedly installed on the top of the housing, a stirring rod fixedly installed on the output shaft of the first motor, a drive assembly fixedly installed on the top of one of the protective shells, and a rotating assembly and other components fixedly installed at the bottom of the inner cavity of the outer shell.

[0003] The aforementioned solution uses a second motor to drive a lead screw to adjust the height of the sprinkler head. However, this height adjustment relies on an external structure, as the sprinkler head itself does not integrate an independent height adjustment function. This design not only increases the complexity of the overall structure and the risk of failure but may also cause spray trajectory deviation due to accumulated mechanical clearance, affecting irrigation uniformity. Therefore, this application proposes a height-adjustable sprinkler head device for irrigation machines. Utility Model Content

[0004] This invention provides a sprinkler head device that can be adjusted vertically, which solves the problem mentioned in the background art that the sprinkler head relies on an external additional structure to achieve vertical adjustment and does not have an integrated independent height adjustment function.

[0005] This utility model provides the following technical solution: an adjustable sprinkler head device, comprising a fixed pipe connected to the water outlet of the sprinkler, a movable pipe movably connected to the inner cavity of the fixed pipe, a sprinkler head connected to the top of the movable pipe, the movable pipe and the fixed pipe being sealed by a sealing assembly, the sealing assembly comprising a sealing airbag ring connected to the bottom end of the movable pipe, a positioning ring connected to the top end of the movable pipe, a compression airbag ring connected to the top end of the positioning ring, and a compression sleeve threadedly connected to the top end of the movable pipe, the top end of the inner cavity of the compression sleeve being movably connected to the movable pipe, the positioning ring and the compression airbag ring being located at the top end of the inner cavity of the compression sleeve, the wall of the movable pipe being provided with a first connecting flow channel, the positioning ring being provided with a second connecting flow channel, the inner cavity of the compression airbag ring and the inner cavity of the sealing airbag ring being connected through the first connecting flow channel and the second connecting flow channel, a limit ring being provided at the top end of the movable pipe, the limit ring being located below the compression sleeve, thereby limiting the compression sleeve.

[0006] Preferably, a splash plate is provided above the nozzle, and the splash plate is connected to the outer wall of the nozzle via a connecting rod.

[0007] Preferably, a connecting pipe is detachably connected to the middle of the top of the inner cavity of the fixed tube, and the movable tube is threadedly connected to the connecting pipe.

[0008] Preferably, a sealing ring is provided on the inner wall of the bottom end of the connecting pipe, and the movable pipe is connected to the inner wall of the sealing ring by a threaded pair to form a spiral fit, and the bottom end of the sealing ring is tightly fitted to the inner wall of the fixed pipe.

[0009] Preferably, there are two sealing airbag rings, the outer wall of the sealing airbag ring is uniformly provided with annular grooves, and the inner wall of the sealing airbag ring is provided with a communication port that communicates with the first connecting flow channel.

[0010] Preferably, the bottom end of the movable tube is sequentially connected to an upper protective plate, an isolation ring, and a lower protective plate. The isolation ring is located between two sealing airbag rings. The bottom of the upper protective plate contacts the top of one sealing airbag ring, and the top of the lower protective plate contacts the top of the other sealing airbag ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The adjustable sprinkler head device integrates an independent height adjustment function, which can achieve precise control of the working height of the sprinkler head without relying on external additional adjustment structures. The height of the sprinkler head can be flexibly adjusted according to actual irrigation needs, effectively avoiding the use of additional adjustment components in traditional designs, significantly simplifying the overall structure of the sprinkler machine, and reducing system complexity and assembly difficulty. The standardized interface and modular connection structure enable quick disassembly and assembly of the components of this application, which facilitates the maintenance of this application.

[0013] 2. This adjustable sprinkler head device features a double-seal design. The sealing components and sealing ring work together to create a double seal at the connection between the fixed and movable pipes, effectively blocking media leakage paths and significantly enhancing overall sealing performance. Furthermore, the sealing ring simultaneously seals two key connection points: between the fixed and connecting pipes, and between the connecting and movable pipes. This single sealing element achieves multi-interface sealing, simplifying the sealing system structure while ensuring the airtightness and watertightness requirements of each connection point. Attached Figure Description

[0014] Figure 1 This is a front view of a sprinkler head device for an adjustable sprinkler irrigation machine according to the present invention.

[0015] Figure 2 The structure of this utility model Figure 1 Cross-sectional view;

[0016] Figure 3 This is an enlarged schematic diagram of the movable tube structure of this utility model;

[0017] Figure 4 The structure of this utility model Figure 3 Explosion diagram;

[0018] Figure 5 The structure of this utility model Figure 3 Cross-sectional view;

[0019] Figure 6 This is a schematic cross-sectional view of the extrusion sleeve structure of this utility model.

[0020] In the diagram: 1. Fixed pipe; 2. Movable pipe; 3. Nozzle; 4. Splash plate; 5. Connecting pipe; 6. Squeezing sleeve; 7. Sealing ring; 8. Positioning ring; 9. Squeezing airbag ring; 10. Isolation ring; 11. Upper protective plate; 12. Sealing airbag ring; 13. Lower protective plate; 14. Connecting port; 15. First connecting flow channel; 16. Second connecting flow channel; 17. Connecting rod; 18. Limiting ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides an embodiment: Please refer to Figures 1-6An adjustable sprinkler head device for an irrigation machine includes a fixed pipe 1 connected to the water outlet of the irrigation machine. A connecting pipe 5 is detachably connected to the middle of the top of the inner cavity of the fixed pipe 1. In embodiment 1, the connecting pipe 5 is connected to the middle of the top of the inner cavity of the fixed pipe 1 by bolts. A movable pipe 2 is threadedly connected to the inner cavity of the connecting pipe 5. The movable pipe 2 is movably connected to the inner cavity of the fixed pipe 1. In use, the user can change the position of the movable pipe 2 inside the fixed pipe 1 by screwing on the movable pipe 2, thereby adjusting the height of the movable pipe 2.

[0023] A sealing ring 7 is provided on the inner wall of the bottom end of the connecting pipe 5. The movable pipe 2 is connected to the inner wall of the sealing ring 7 via a threaded pair to form a spiral fit. The bottom end of the sealing ring 7 is tightly fitted to the inner wall of the fixed pipe 1. Through the setting of the sealing ring 7, the sealing ring 7 simultaneously achieves sealing at two key connection nodes: between the fixed pipe 1 and the connecting pipe 5, and between the connecting pipe 5 and the movable pipe 2. A single sealing element completes the multi-interface sealing function, which simplifies the sealing system structure and ensures the airtightness and watertightness requirements of each connection part. The material of the sealing ring 7 can be set according to requirements and is not limited here.

[0024] The movable tube 2 and the fixed tube 1 are sealed by a sealing assembly. The sealing assembly includes a compression sleeve 6 that is threaded to the top of the movable tube 2. The top of the inner cavity of the compression sleeve 6 is movably connected to the movable tube 2. The outer ring of the top of the movable tube 2 is fixedly sleeved with a positioning ring 8. The top of the positioning ring 8 is connected to a compression airbag ring 9. Both the positioning ring 8 and the compression airbag ring 9 are located at the top of the inner cavity of the compression sleeve 6. With this arrangement, when the user screws the compression sleeve 6 and the compression sleeve 6 moves downward, the compression sleeve 6 can compress the compression airbag ring 9. However, when the compression sleeve 6 moves upward, the compression sleeve 6 can release the compression of the compression airbag ring 9.

[0025] The sealing assembly also includes a sealing airbag ring 12 connected to the outer wall of the bottom end of the movable tube 2. The wall of the movable tube 2 is provided with a first connecting channel 15. The inner wall of the sealing airbag ring 12 is provided with a connecting port 14 that communicates with the first connecting channel 15. The positioning ring 8 is provided with a second connecting channel 16. The inner cavity of the positioning ring 8 communicates with the inner cavity of the second connecting channel 16. The inner cavity of the compression airbag ring 9 communicates with the inner cavity of the sealing airbag ring 12 through the first connecting channel 15 and the second connecting channel 16.

[0026] As described above, when the compression airbag ring 9 is compressed, under the action of the compression force, the excess gas in the compression airbag ring 9 enters the sealing airbag ring 12 through the second connecting channel 16 and the first connecting channel 15, causing the sealing airbag ring 12 to expand in volume. This allows the sealing airbag ring 12 to improve the airtightness between the inner wall of the movable tube 2 and the fixed tube 1 during use. When the compression of the compression airbag ring 9 is released, under the action of the rebound force of the sealing airbag ring 12, the excess gas in the sealing airbag ring 12 can flow back into the compression airbag ring 9 through the first connecting channel 15 and the second connecting channel 16, releasing the seal between the movable tube 2 and the fixed tube 1, and facilitating the adjustment of the position of the movable tube 2 within the fixed tube 1.

[0027] There are two sealing airbag rings 12. The outer wall of the sealing airbag ring 12 is uniformly provided with annular grooves. Through the arrangement of the annular grooves, the sealing airbag ring 12 can form a multi-level sealing barrier, gradually attenuating the leakage force of the medium and improving the sealing performance.

[0028] The bottom end of the movable tube 2 is sequentially connected to an upper protective plate 11, an isolation ring 10, and a lower protective plate 13. The isolation ring 10 is located between two sealing airbag rings 12. The bottom of the upper protective plate 11 contacts the top of one sealing airbag ring 12, and the top of the lower protective plate 13 contacts the top of the other sealing airbag ring 12. Through the setting of the upper protective plate 11 and the lower protective plate 13, the sealing airbag ring 12 can be protected, reducing the impact of water flow on the sealing airbag ring 12, extending the service life of the sealing airbag ring 12, and constraining the deformation range of the sealing airbag ring 12 within a preset space, preventing abnormal displacement or excessive compression caused by water flow impact, ensuring that the sealing airbag ring 12 maintains a stable sealing contact pressure, and ensuring the performance of the sealing airbag ring 12.

[0029] The top end of the movable tube 2 is provided with a limiting ring 18, which is located below the extrusion sleeve 6 to limit the extrusion sleeve 6. When the bottom of the extrusion sleeve 6 contacts the top of the limiting ring 18, the sealing airbag ring 12 can achieve a seal between the movable tube 2 and the inner wall of the fixed tube 1.

[0030] As described above, this application provides dual sealing protection by employing a sealing component and a sealing ring in synergy to form a dual sealing protection at the connection between the fixed pipe and the moving pipe, effectively blocking the leakage path of the medium and significantly enhancing the overall sealing performance. This application, through the synergistic effect of the redundant configuration of the dual sealing airbag rings and the groove microstructure, forms a composite protection system of "primary seal + secondary seal" at the sealing interface, while improving the system's adaptability to assembly tolerances, operating condition fluctuations, and long-term use.

[0031] The top of the active pipe 2 is connected to a nozzle 3, and a splash plate 4 is provided above the nozzle 3. The splash plate 4 is connected to the outer wall of the nozzle 3 through a connecting rod 17.

[0032] In summary: When using this adjustable sprinkler head device, the fixed pipe 1 is connected to the water outlet of the sprinkler via a standardized interface (such as threaded connection / flange adapter). When the sprinkler is working, water flows into the sprinkler head device and is sprayed out through the sprinkler head 3. During use, when the height of the sprinkler head 3 needs to be adjusted, the user screws on the compression sleeve 6 to move it upwards, releasing the compression of the compression airbag ring 9 until the lower end of the inner cavity of the compression sleeve 6 is in contact with the bottom of the positioning ring 8. At this point, the top of the inner cavity of the compression sleeve 6 is only in contact with the top of the compression airbag ring 9. As the compression of the compression airbag ring 9 is gradually released, excess gas in the sealing airbag ring 12 can flow back into the compression airbag ring 9 through the first connecting channel 15 and the second connecting channel 16, releasing the seal between the movable pipe 2 and the fixed pipe 1. When the user screws on the movable pipe 2, the movable pipe 2 is positioned within the fixed pipe... The position of the movable tube 2 can be changed. When the movable tube 2 moves, it drives the nozzle 3 to move, thereby realizing the vertical adjustment of the nozzle 3. After the movable tube 2 is in the correct position, the user stops turning the movable tube 2 and turns the compression sleeve 6 in the opposite direction, causing the compression sleeve 6 to move down. The compression sleeve 6 compresses the compression airbag ring 9. The gas in the compression airbag ring 9 enters the sealing airbag ring 12 through the second connecting channel 16 and the first connecting channel 15, causing the sealing airbag ring 12 to expand in volume until the compression sleeve 6 contacts the limiting ring 18. At this time, the movable tube 2 and the fixed tube 1 are sealed to prevent leakage during use and facilitate the use of the device.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The material and size of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable sprinkler head device, comprising a fixed pipe (1) connected to the water outlet of a sprinkler, characterized in that: The fixed tube (1) has a movable tube (2) movably connected to its inner cavity. A nozzle (3) is connected to the top of the movable tube (2). The movable tube (2) and the fixed tube (1) are sealed by a sealing assembly. The sealing assembly includes a sealing airbag ring (12) connected to the bottom of the movable tube (2), a positioning ring (8) connected to the top of the movable tube (2), a compression airbag ring (9) connected to the top of the positioning ring (8), and a compression sleeve (6) threaded to the top of the movable tube (2). The top of the inner cavity of the compression sleeve (6) is movably connected to the movable tube (2). The positioning ring (8) and the compression airbag ring (9) are both located at the top of the inner cavity of the compression sleeve (6). The wall of the movable tube (2) is provided with a first connecting flow channel (15), and the positioning ring (8) is provided with a second connecting flow channel (16). The inner cavity of the compression airbag ring (9) is connected to the inner cavity of the sealing airbag ring (12) through the first connecting flow channel (15) and the second connecting flow channel (16). The top of the movable tube (2) is provided with a limiting ring (18), which is located below the compression sleeve (6) to limit the compression sleeve (6).

2. An adjustable sprinkler head assembly as defined in claim 1 wherein: A splash plate (4) is provided above the nozzle (3), and the splash plate (4) is connected to the outer wall of the nozzle (3) through a connecting rod (17).

3. An adjustable sprinkler head assembly as defined in claim 1 wherein: The fixed tube (1) has a connecting tube (5) detachably connected to the middle of the top of its inner cavity, and the movable tube (2) is threadedly connected to the connecting tube (5).

4. An adjustable sprinkler head assembly as defined in claim 3 wherein: The inner wall of the bottom end of the connecting pipe (5) is provided with a sealing ring (7). The movable pipe (2) is connected to the inner wall of the sealing ring (7) by a threaded pair. The bottom end of the sealing ring (7) is tightly fitted to the inner wall of the fixed pipe (1).

5. An adjustable sprinkler head assembly as defined in claim 1 wherein: There are two sealing airbag rings (12). The outer wall of the sealing airbag ring (12) is uniformly provided with annular grooves, and the inner wall of the sealing airbag ring (12) is provided with a communication port (14) that communicates with the first connecting channel (15).

6. An adjustable sprinkler head assembly as defined in claim 5 wherein: The bottom end of the active tube (2) is connected in sequence to an upper protective plate (11), an isolation ring (10) and a lower protective plate (13). The isolation ring (10) is located between two sealing airbag rings (12). The bottom of the upper protective plate (11) is in contact with the top of one sealing airbag ring (12), and the top of the lower protective plate (13) is in contact with the top of the other sealing airbag ring (12).

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