A multi-stage filtration structure for a mobile irrigation header

Abstract

The utility model relates to the technical field of crop irrigation auxiliary appliance, concretely relates to a multistage filter structure of mobile irrigation head, including mobile car, the inside of mobile car is provided with filter pipe, the inside of filter pipe is equipped with middle chamber in middle position, the both ends of middle chamber are first water passageway and second water passageway respectively, the inside of first water passageway and second water passageway is provided with filter screen, the both sides of middle chamber are in fluid communication with water pump and water outlet pipe in mobile car respectively, the utility model has the advantages of: through setting up flow guide head, normal operation, water pump will send water through flow guide head and one water passageway to water outlet pipe, irrigation, when the excessive impurities of this water passageway filter block, flow guide head rotates, and makes water flow commutate to another water passageway, this setting makes the device when blocking, can automatically adjust water flow path to maintain system water supply continuity.

Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation auxiliary equipment technology, specifically to a multi-stage filtration structure for a mobile irrigation head. Background Technology

[0002] With the development of intensive and large-scale modern agriculture, mobile irrigation systems have been widely used in field crops, orchards, nurseries, and other scenarios due to their flexibility and efficiency. As the "heart" of a mobile irrigation system, the irrigation head undertakes key functions such as water purification, pressure regulation, and fertilizer injection. Among these, the filtration system is the core component ensuring the normal operation of the entire irrigation network and irrigation devices (such as drippers and sprinklers). Since irrigation water sources are mostly drawn from rivers, lakes, reservoirs, or wells, the water often contains impurities such as silt, algae, humus, and suspended particles. Without effective filtration, this can easily cause blockages in the irrigation devices, leading to uneven irrigation, reduced efficiency, and even system failure, seriously affecting crop growth and agricultural production efficiency.

[0003] Currently, mobile irrigation heads generally employ multi-stage filtration structures, typically composed of mesh filters, disc filters, centrifugal filters, or sand filters, to progressively intercept impurities of different particle sizes. However, in actual operation, especially when water quality is poor or seasonal impurity levels fluctuate significantly, filters are prone to clogging due to excessive impurities. Existing multi-stage filtration systems often feature fixed flow channel designs. When a filtration unit becomes severely clogged, the system often relies on manual inspection to detect abnormal pressure or flow rate, followed by manual bypass switching or system shutdown for cleaning, resulting in delayed response and untimely maintenance. More seriously, once a blockage occurs, the water flow channel is completely or partially blocked, not only causing a water supply interruption but also potentially damaging pipelines or filtration units due to a surge in localized pressure, increasing maintenance costs and system failure risks.

[0004] Furthermore, existing equipment typically requires disassembling the filter unit or backwashing to clear blockages, a cumbersome and time-consuming process. Especially in field operations, the lack of convenient and efficient on-site clearing methods severely impacts the continuous operation capability and ease of use of mobile irrigation systems.

[0005] Therefore, a multi-stage filtration structure for a mobile irrigation head is needed to solve the above problems. Utility Model Content

[0006] To address the aforementioned problem—namely, the inability of existing irrigation heads to detect blockages in real time during the filtration process and to automatically adjust the water flow path to maintain continuous water supply—this invention provides a multi-stage filtration structure for a mobile irrigation head.

[0007] A multi-stage filtration structure for a mobile irrigation head includes a mobile vehicle. The mobile vehicle houses a filter pipe with a central cavity at its center. The two ends of the central cavity are a first water passage cavity and a second water passage cavity, respectively. Both the first and second water passage cavities are equipped with filter screens. The two sides of the central cavity are respectively connected to a water pump and an outlet pipe within the mobile vehicle. A flow guide head is rotatably mounted inside the central cavity. During normal operation, the water pump delivers water through the flow guide head and one of the water passage cavities to the outlet pipe for irrigation. When this water passage cavity becomes clogged due to excessive impurities, the flow guide head rotates, diverting the water flow to another water passage cavity. This design allows the device to automatically adjust the water flow path to maintain continuous water supply when blockage occurs.

[0008] The multi-stage filtration structure of the aforementioned mobile irrigation head includes detachable sealing arc plates at the top of both the first and second water passage chambers. A first partition plate is fixedly installed inside both the first and second water passage chambers, with the inner end of the first partition plate abutting against the end of the guide head. A channel exists between the outer end of the first partition plate and the outside of the filter tube. The filter screen is fixedly installed between the first partition plate and the inner surface of the filter tube. By providing detachable sealing arc plates, when the filter screen in the first or second water passage chamber becomes clogged, only the corresponding sealing arc plate needs to be opened to clean the internal filter screen. This design allows the device to clean clogged filters during operation, ensuring the continuity of water flow.

[0009] The multi-stage filtration structure of the aforementioned mobile irrigation head includes a second partition plate fixedly installed inside the sealing arc plate, matching the first partition plate. A filter screen is also fixedly installed between the second partition plate and the inner surface of the sealing arc plate. Sealing plates are fixedly installed on the lower surfaces of both the sealing arc plate and the second partition plate. Sealing grooves matching the sealing plates are formed on the upper surfaces of the filter tube near both ends and on the upper surface of the first partition plate. The sealing plates are engaged in the sealing grooves. When the sealing arc plate is installed on the filter tube, the filter screen inside the filter tube abuts against the filter screen inside the sealing arc plate. By setting the sealing plates and sealing grooves, the sealing between the sealing arc plate and the filter tube can be ensured, effectively preventing the outflow of internal water. Additionally, the installation of the sealing arc plate can be positioned to prevent it from sliding. By setting the first and second partition plates, the flow path of water after entering the first or second water passage cavity through the guide head can be controlled, allowing the water to pass through multiple filter screens before flowing out.

[0010] The above-mentioned multi-stage filtration structure of a mobile irrigation head has a locking groove that connects the filter pipe to the outer surface of the sealing arc plate. A clamp made of rubber is provided inside the locking groove. By providing the clamp, it is easy to fix the filter pipe and the sealing arc plate. The locking groove can prevent the clamp from sliding.

[0011] The above-mentioned multi-stage filtration structure of a mobile irrigation head includes a first inlet, a first outlet, a second inlet, and a second outlet connected to the side and end of the guide head. The first and second inlets are located on the same cross-section of the guide head. The front of the intermediate cavity has an inlet matching the first and second inlets, which is fluidly connected to the water pump inside the mobile vehicle. The back of the intermediate cavity has a first outlet matching the first outlet and a second outlet matching the second outlet, both of which are fluidly connected to the water outlet pipe inside the mobile vehicle. When the first inlet is connected to the inlet, water flows through the first water passage chamber, the first outlet connects to the first outlet, and the second outlet is blocked by the guide head. When the second inlet is connected to the inlet, water flows through the second water passage chamber, the second outlet connects to the second outlet, and the first outlet is blocked.

[0012] The aforementioned multi-stage filtration structure of a mobile irrigation head includes a first pressure sensor inside the first inlet and a second pressure sensor inside the second inlet. The outer surface of the guide head has a toothed groove. A central gear is rotatably mounted through the top wall of the filter tube, meshing with the toothed groove. A motor is fixedly mounted on the top of the filter tube, and a drive gear is coaxially fixedly mounted on the motor's output shaft via a coupling, meshing with the central gear. The first pressure sensor, the second pressure sensor, and the motor are all connected to an external controller. By incorporating these components, when the filter screen in the first water passage chamber becomes clogged, the first pressure sensor senses the pressure and transmits a signal to the external controller. The external controller then controls the motor to rotate, driving the guide head to rotate half a turn. Similarly, when the filter screen in the second water passage chamber becomes clogged, the second pressure sensor senses the pressure and transmits a signal to the external controller, which in turn controls the motor to rotate the guide head half a turn. This configuration enables the device to automatically detect blockages and automatically change the water flow path.

[0013] The beneficial effects of this utility model are as follows: 1. By setting a guide head, the water pump delivers water through the guide head and one of the water passage chambers to the outlet pipe for irrigation during normal operation. When the water passage chamber is blocked due to excessive impurities, the guide head rotates to divert the water flow to another water passage chamber. This setting enables the device to automatically adjust the water flow path to maintain the continuity of the system's water supply when blockage occurs.

[0014] 2. By setting a detachable sealing arc plate, when the filter screen in the first or second water passage chamber becomes clogged, only the corresponding sealing arc plate needs to be opened to clean the internal filter screen. This setting allows the device to clean the clogged filter screen during operation, ensuring the continuity of water flow.

[0015] 3. By setting a sealing plate and a sealing groove, this utility model can ensure the sealing between the sealing arc plate and the filter pipe, effectively preventing the internal water from flowing out. In addition, it can also position the installation of the sealing arc plate to prevent the sealing arc plate from sliding.

[0016] 4. This utility model, by setting up a first pressure sensor, a second pressure sensor, and a motor, allows the device to automatically detect blockages and automatically change the water flow path when the filter screen in the first water passage chamber becomes clogged. When the filter screen in the second water passage chamber becomes clogged, the first pressure sensor senses the pressure and transmits the signal to the external controller, which then controls the motor to rotate, causing the guide head to rotate half a turn. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the mobile vehicle of this utility model; Figure 2 This is a schematic diagram of the filter tube structure of this utility model; Figure 3 This is a schematic diagram of the flow guide head structure of this utility model; Figure 4 This is a schematic cross-sectional view of the flow guide head of this utility model; Figure 5 This is a cross-sectional view of the filter tube of this utility model; Figure 6 This is a schematic diagram of the internal structure of the sealing arc plate of this utility model; Figure 7 This is a schematic diagram of the clamp structure of this utility model.

[0018] In the picture: 1. Mobile vehicle; 2. Filter pipe; 3. Intermediate cavity; 4. First water passage cavity; 5. Second water passage cavity; 6. Filter screen; 7. Guide head; 8. Sealing arc plate; 9. First partition plate; 10. Second partition plate; 11. Sealing plate; 12. Sealing groove; 13. Locking groove; 14. Clamp; 15. First water inlet; 16. First water outlet; 17. Second water inlet; 18. Second water outlet; 19. Water inlet; 20. First water outlet; 21. Second water outlet; 22. First pressure sensor; 23. Second pressure sensor; 24. Gear; 25. Intermediate gear; 26. Motor; 27. Drive gear. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] like Figure 1 , Figure 3 and Figure 5 As shown in the figure, this utility model embodiment discloses a multi-stage filtration structure for a mobile irrigation head, including a mobile vehicle 1. The mobile vehicle 1 has a filter pipe 2 inside, and a middle cavity 3 is opened in the middle of the filter pipe 2. The two ends of the middle cavity 3 are a first water passage cavity 4 and a second water passage cavity 5, respectively. The first water passage cavity 4 and the second water passage cavity 5 are both equipped with filter screens 6. The two sides of the middle cavity 3 are respectively fluidly connected to the water pump and the water outlet pipe in the mobile vehicle 1. A guide head 7 is rotatably installed inside the middle cavity 3. By setting the guide head 7, during normal operation, the water pump delivers water through the guide head 7 and one of the water passage cavities to the water outlet pipe for irrigation. When the water passage cavity is blocked due to excessive impurities, the guide head 7 rotates, causing the water flow to be diverted to another water passage cavity. This setting enables the device to automatically adjust the water flow path to maintain the continuity of the system water supply when blockage occurs.

[0021] like Figure 5 As shown, the top of both the first water passage chamber 4 and the second water passage chamber 5 is provided with a separable sealing arc plate 8. The interior of both the first water passage chamber 4 and the second water passage chamber 5 is fixedly installed with a first partition plate 9. The inner end of the first partition plate 9 abuts against the end of the guide head 7. There is a channel between the outer end of the first partition plate 9 and the outside of the filter tube 2. The filter screen 6 is fixedly installed between the first partition plate 9 and the inner surface of the filter tube 2. By setting the separable sealing arc plate 8, when the filter screen 6 in the first water passage chamber 4 or the second water passage chamber 5 becomes blocked, it is only necessary to open the corresponding sealing arc plate 8 to clean the internal filter screen 6. This setting allows the device to clean the blocked filter screen 6 during operation, which can ensure the continuity of water flow.

[0022] like Figures 5-6As shown, a second partition plate 10 matching the first partition plate 9 is fixedly installed inside the sealing arc plate 8. A filter screen 6 is also fixedly installed between the second partition plate 10 and the inner surface of the sealing arc plate 8. Sealing plates 11 are fixedly installed on the lower surfaces of both the sealing arc plate 8 and the second partition plate 10. Sealing grooves 12 matching the sealing plates 11 are opened on the upper surfaces of the filter tube 2 near both ends and on the upper surface of the first partition plate 9. The sealing plates 11 are engaged in the sealing grooves 12. When the sealing arc plate 8 is installed on the filter tube 2, the filter tube 2 is closed. The filter screen 6 and the filter screen 6 inside the sealing arc plate 8 abut against each other; by setting the sealing plate 11 and the sealing groove 12, the sealing between the sealing arc plate 8 and the filter tube 2 can be guaranteed, which can effectively prevent the internal water from flowing out. In addition, the installation of the sealing arc plate 8 can be positioned to prevent the sealing arc plate 8 from sliding. By setting the first partition plate 9 and the second partition plate 10, the flow path of the water after entering the first water passage chamber 4 or the second water passage chamber 5 through the guide head 7 can be controlled, so that the water can flow out after passing through multiple filter screens 6.

[0023] like Figure 2 and Figure 7 As shown, a locking groove 13 is provided on the outer surface of the filter tube 2 and the sealing arc plate 8. A clamp 14 is provided inside the locking groove 13. The clamp 14 is made of rubber. By providing the clamp 14, it is easy to fix the filter tube 2 and the sealing arc plate 8. The locking groove 13 can prevent the clamp 14 from sliding.

[0024] like Figures 3-5 As shown, the guide head 7 has a first water inlet 15, a first water outlet 16, a second water inlet 17, and a second water outlet 18 connected to its side and end. The first water inlet 15 and the second water inlet 17 are located on the same cross-section of the guide head 7. The front of the intermediate cavity 3 has a water inlet 19 that matches the first water inlet 15 and the second water inlet 17. The water inlet 19 is in fluid communication with the water pump in the mobile vehicle 1. The back of the intermediate cavity 3 has a first water outlet 20 that matches the first water outlet 16 and a matching... The second outlet 21 of the second outlet hole 18, the first outlet 20 and the second outlet 21 are all connected to the water outlet pipe in the mobile vehicle 1; when the first inlet hole 15 is connected to the inlet 19, the water flows through the first water passage chamber 4, the first outlet hole 16 is connected to the first outlet 20, and the second outlet 21 is blocked by the guide head 7; when the second inlet hole 17 is connected to the inlet 19, the water flows through the second water passage chamber 5, the second outlet hole 18 is connected to the second outlet 21, and the first outlet 20 is blocked.

[0025] like Figures 2-4As shown, a first pressure sensor 22 is installed inside the first water inlet 15, and a second pressure sensor 23 is installed inside the second water inlet 17. A toothed groove 24 is formed on the outer surface of the guide head 7. An intermediate gear 25 is rotatably mounted through the top wall of the filter tube 2, meshing with the toothed groove 24. A motor 26 is fixedly mounted on the top of the filter tube 2. A drive gear 27 is coaxially fixedly mounted on the output shaft of the motor 26 via a coupling, meshing with the intermediate gear 25. The first pressure sensor 22, the second pressure sensor 23, and the motor 26 are all connected to an external controller. By configuring a first pressure sensor 22, a second pressure sensor 23, and a motor 26, when the filter screen 6 in the first water passage chamber 4 becomes clogged, the first pressure sensor 22 senses the pressure and transmits the signal to the external controller. The external controller then controls the motor 26 to run, and the motor 26 drives the guide head 7 to rotate half a turn. When the filter screen 6 in the second water passage chamber 5 becomes clogged, the second pressure sensor 23 senses the pressure and transmits the signal to the external controller. The external controller then controls the motor 26 to run, and the motor 26 drives the guide head 7 to rotate half a turn. This configuration enables the device to automatically detect blockages and automatically change the water flow path.

[0026] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A multi-stage filtration structure for a mobile irrigation head, comprising a mobile vehicle (1), characterized in that, The mobile vehicle (1) is equipped with a filter pipe (2), and a middle cavity (3) is opened in the middle of the filter pipe (2). The two ends of the middle cavity (3) are a first water passage cavity (4) and a second water passage cavity (5), respectively. The first water passage cavity (4) and the second water passage cavity (5) are both equipped with filter screens (6). The two sides of the middle cavity (3) are respectively connected to the water pump and the water outlet pipe in the mobile vehicle (1). A guide head (7) is rotatably installed inside the middle cavity (3).

2. The multi-stage filtration structure of a mobile irrigation head according to claim 1, characterized in that, The top of the first water passage (4) and the second water passage (5) are provided with separable sealing arc plates (8). The interior of the first water passage (4) and the second water passage (5) is fixedly installed with a first partition plate (9). The inner end of the first partition plate (9) abuts against the end of the guide head (7). There is a channel between the outer end of the first partition plate (9) and the outside of the filter tube (2). The filter screen (6) is fixedly installed between the first partition plate (9) and the inner surface of the filter tube (2).

3. The multi-stage filtration structure of a mobile irrigation head according to claim 2, characterized in that, The sealing arc plate (8) is fixedly installed with a second partition plate (10) matching the first partition plate (9). The filter screen (6) is also fixedly installed between the second partition plate (10) and the inner surface of the sealing arc plate (8). The sealing arc plate (8) and the second partition plate (10) are both fixedly installed with sealing plates (11). The upper surfaces of the filter tube (2) near both ends and the upper surface of the first partition plate (9) are both provided with sealing slots (12) matching the sealing plates (11). The sealing plates (11) are locked in the sealing slots (12). When the sealing arc plate (8) is installed on the filter tube (2), the filter screen (6) in the filter tube (2) and the filter screen (6) in the sealing arc plate (8) abut against each other.

4. The multi-stage filtration structure of a mobile irrigation head according to claim 3, characterized in that, The filter tube (2) is connected to the outer surface of the sealing arc plate (8) and has a locking groove (13). The locking groove (13) has a clamp (14) inside, which is made of rubber.

5. The multi-stage filtration structure of a mobile irrigation head according to claim 4, characterized in that, The guide head (7) has a first water inlet (15), a first water outlet (16), a second water inlet (17), and a second water outlet (18) connected to its side and end. The first water inlet (15) and the second water inlet (17) are located on the same cross-section of the guide head (7). The front of the intermediate cavity (3) has a water inlet (19) that matches the first water inlet (15) and the second water inlet (17). The water inlet (19) is connected to the water pump in the mobile vehicle (1). The back of the intermediate cavity (3) has a first water outlet (20) that matches the first water outlet (16) and a second water outlet (21) that matches the second water outlet (18). The first water outlet (20) and the second water outlet (21) are both connected to the water outlet pipe in the mobile vehicle (1).

6. The multi-stage filtration structure of a mobile irrigation head according to claim 5, characterized in that, The first water inlet (15) is equipped with a first pressure sensor (22), the second water inlet (17) is equipped with a second pressure sensor (23), the outer surface of the guide head (7) is provided with a toothed groove (24), the top wall of the filter tube (2) is rotatably mounted with an intermediate gear (25), the intermediate gear (25) is meshed with the toothed groove (24), the top of the filter tube (2) is fixedly mounted with a motor (26), the output shaft of the motor (26) is coaxially fixedly mounted with a drive gear (27) through a coupling, the drive gear (27) is meshed with the intermediate gear (25), and the first pressure sensor (22), the second pressure sensor (23) and the motor (26) are all connected to an external controller.

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