A dual-mode irrigation sprinkler adaptive switching mechanism

Abstract

The present invention relates to a dual-mode irrigation nozzle adaptive switching mechanism applied to the field related to agricultural irrigation. For areas where crops are dying on the drip irrigation belt line, the mechanism can shield the drip irrigation holes by setting an adaptive obturator unit and controlling the flipping of the covering plate, thereby realizing the opening and closing control of a single drip irrigation port on the drip irrigation belt. This can effectively reduce the ineffective irrigation of water in the area without affecting the irrigation of other areas, effectively avoid the occurrence of long-term irrigation in areas that do not need irrigation, and achieve the effect of saving water resources for large-area irrigation systems. At the same time, for areas on the drip irrigation belt line that are short of water, the mechanism can be combined with the setting of the water compensation unit to independently compensate for water in the water-scarce areas without affecting drip irrigation. Compared with the existing technology, the adaptability of the drip irrigation belt to different areas is greatly improved.

Description

Technical Field

[0001] The present invention relates to a dual-mode irrigation sprinkler self-adaptive switching mechanism, and in particular to a dual-mode irrigation sprinkler self-adaptive switching mechanism applied to fields related to agricultural irrigation. Background Art

[0002] Drip irrigation is an irrigation method that uses a system of pipes and emitters mounted on capillary tubes to deliver water and nutrients needed by crops, drop by drop, evenly and slowly, into the soil around the root zone. Existing drip irrigation systems typically consist of a water tank, main pipes, branch pipes, and drip tapes, primarily to achieve uniform, systematic, and synchronized irrigation of crops.

[0003] The drip irrigation belt is provided with multiple drip irrigation ports facing upward, and a control valve is connected to the drip irrigation belt and its corresponding branch pipe. The on-off of the water flow in the entire drip irrigation belt line is controlled by this control valve as a whole, that is, a single drip irrigation port does not have the ability to independently switch the open and closed state, such as the drip irrigation belt disclosed in the Chinese patent specification with publication number CN103782871B, and the drip irrigation belt and drip irrigation belt device disclosed in the Chinese patent specification with publication number CN118303309A.

[0004] However, for agricultural planting, it is difficult to maintain consistent growth of crops in the same area. Some crops will die while others will grow vigorously. For areas where crops have died, maintaining the same irrigation as other areas can easily lead to a waste of water resources, especially in the case of integrated water and fertilizer drip irrigation, which can easily lead to a waste of fertilizer and increase costs. For areas where some crops are about to dry up or the soil moisture content is low, their demand for water is even higher, and existing drip irrigation belts are difficult to adapt to this demand. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing drip irrigation belt with overall control of opening and closing is difficult to adapt to the different needs of different areas in the same line.

[0006] In order to solve the above problems, the present invention provides an adaptive switching mechanism for a dual-mode irrigation sprinkler, comprising a plurality of connecting tubes with a control center respectively installed on a drip irrigation belt, wherein the left and right ends of the connecting tubes are fixedly connected to positioning rings, a drip irrigation hole is drilled in the middle of the connecting tube, and an adaptive closed-hole unit is provided on the connecting tube, the adaptive closed-hole unit comprises a fixed film patch fixedly connected to the middle of the upper end of the connecting tube and a covering plate connected between the two positioning rings through an electric slide rail, the fixed film patch comprises a film absorption ring and a gap filling layer fixedly connected to the inner ring of the film absorption ring, an overflow hole corresponding to the drip irrigation hole is also drilled in the middle of the gap filling layer, the covering plate comprises a covering layer and guide plates respectively fixedly connected to the middle of the two axial edges of the covering layer, the covering plate is located at the bottom of the connecting tube, and the covering plate and the fixed film patch correspond to each other;

[0007] The adaptive switching mechanism also includes multiple water compensation units installed on the drip irrigation belt, and the multiple water compensation units are respectively arranged adjacent to the multiple connecting tubes. The water compensation unit includes a water absorption outer bag fixedly connected to the outside of the drip irrigation belt, a water collecting frame fixedly connected to the inside of the drip irrigation belt, and a water supply rod that movably penetrates the water absorption outer bag, the drip irrigation belt and the water collecting frame.

[0008] In the above-mentioned dual-mode irrigation nozzle adaptive switching mechanism, through the setting of the adaptive closed-hole unit, when it is found that some areas are dead, the corresponding drip irrigation port on the drip irrigation belt can be controlled to close, so that water irrigation will not continue in that area, thereby achieving the effect of saving water resources. At the same time, in conjunction with the setting of the water compensation unit, independent water compensation can be carried out for water-deficient areas on the basis of drip irrigation. Compared with the existing technology, the adaptability of this drip irrigation belt to different areas is greatly improved. At the same time, the opening and closing states of a single drip irrigation port can be switched independently, thereby effectively avoiding the occurrence of long-term irrigation in areas that do not require irrigation.

[0009] As a further improvement of the present application, the left and right radial edges of the covering layer are fixedly connected with forming sections, the forming sections are connected to the electric slide rail on the positioning ring, and a film ring is fixedly embedded in the middle of the covering layer. The film ring is a hard structure, and the forming section is an elastic sealing structure.

[0010] As a further improvement of the present application, the film absorbing ring is made of ferromagnetic material, a soft magnetic strip is fixedly embedded inside the fixed film ring, and in a top view, the outline of the fixed film ring is located within the outline of the film absorbing ring.

[0011] As a further improvement of the present application, the guide piece is a hard arc-shaped curled edge structure, and the maximum distance between the end of the guide piece and the inner wall of the associated tube is greater than the thickness of the drip irrigation head corresponding to the drip irrigation port.

[0012] As a further improvement of the present application, an electromagnetic plate is fixedly connected to the inner wall of the water collecting frame, and a water supply hole is opened in the middle of the lower end of the water collecting frame.

[0013] As a further improvement of the present application, the water replenishment rod includes a water diversion ball, a transmission rod and a connecting rod respectively fixedly connected to the upper and lower ends of the water diversion ball, a hollow float fixedly connected to the lower end of the connecting rod, and a limiting top ball fixedly connected to the top of the transmission rod. The water diversion ball is located in the water collecting frame and is lower than the electromagnetic plate. The hollow float is located outside the water collecting frame, and the limiting top ball is located above the water absorption outer bag.

[0014] As a further improvement of the present application, the water-diverting ball includes two hemispheres and a magnetic control plate fixedly connected between the two hemispheres. The upper hemisphere is a water-absorbing structure. When energized, the electromagnetic plate generates a magnetic repulsion force on the magnetic control plate. A rectangular long hole is opened in the middle of the transmission rod. A cotton swab fixed to and in contact with the upper hemisphere of the water-diverting ball is placed in the rectangular long hole. When the water-diverting ball is just in contact with it, the rectangular long hole is completely located in the water-absorbing outer bag, and the height of the water-absorbing outer bag is not more than 1.5 times the longitudinal span of the rectangular long hole.

[0015] As a further improvement of the present application, the outer diameter of the hollow float is larger than the outer diameter of the water diversion ball, and the buoyancy of the hollow float is greater than the total gravity of the connecting rod, the water diversion ball, the transfer rod, and the limiting top ball after the water supply rod is saturated with water, and when the water diversion ball contacts the electromagnetic plate, the hollow float contacts the bottom of the water collection frame and blocks the water supply hole, and the inner diameter of the water supply hole is not less than 2 times the diameter of the connecting rod.

[0016] In summary, for the area where crops are dying on the drip irrigation belt line, the setting of the adaptive closed-hole unit and the control of the flipping of the covering plate can realize the shielding of the drip irrigation holes and the opening and closing control of a single drip irrigation port on the drip irrigation belt, thereby effectively reducing the ineffective irrigation of water in the area without affecting the irrigation of other areas, and effectively avoiding the occurrence of long-term irrigation in areas that do not need irrigation. For large-area irrigation systems, the effect of saving water resources can be achieved. At the same time, for water-scarce areas on the drip irrigation belt line, with the setting of the water compensation unit, independent water compensation can be carried out for the water-scarce areas without affecting the drip irrigation. Compared with the existing technology, the adaptability of the drip irrigation belt to different areas is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of the first embodiment of the present application;

[0018] Figure 2 This is an exploded view of the first embodiment of the present application;

[0019] Figure 3 A three-dimensional diagram of a perforated sheet according to a first embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the process of independently closing the drip irrigation port in the first embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of closing the drip irrigation outlets in a part of the same drip irrigation belt line according to the first embodiment of the present application;

[0022] Figure 6 This is a perspective view of the second embodiment of the present application;

[0023] Figure 7 This is a cross-sectional view of a water compensation unit according to a second embodiment of the present application;

[0024] Figure 8 This is a cross-sectional schematic diagram of the second embodiment of the present application when performing local water replenishment;

[0025] Figure 9 This is a cross-sectional schematic diagram of accelerating the local hydration effect in the second embodiment of the present application;

[0026] Figure 10 This is a schematic diagram of stopping local water replenishment in the second embodiment of the present application;

[0027] Figure 11 This is a schematic diagram of a water replenishment rod in the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1 connecting tube, 101 positioning ring, 2 fixed film patch, 21 film absorbing ring, 22 gap filling layer, 3 covering hole piece, 31 guide piece, 32 covering layer, 321 shaping section, 322 fixed film ring, 4 water absorption outer package, 51 hollow float, 52 connecting rod, 53 water diversion ball, 531 magnetic control plate, 54 transfer rod, 501 limiting top ball, 502 rectangular long hole, 6 water collection frame, 61 electromagnetic plate. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-2The figure shows an adaptive switching mechanism of a dual-mode irrigation sprinkler, comprising a plurality of connecting tubes 1 with a control center respectively installed on the drip irrigation belt, wherein the left and right ends of the connecting tube 1 are fixedly connected to a positioning ring 101, a drip irrigation hole is drilled in the middle of the connecting tube 1, and an adaptive closed-hole unit is provided on the connecting tube 1, the adaptive closed-hole unit comprises a fixed film patch 2 fixedly connected to the middle of the upper end of the connecting tube 1 and a covering plate 3 connected between the two positioning rings 101 through an electric slide rail, the fixed film patch 2 comprises a film absorption ring 21 and a gap-filling layer 22 fixedly connected to the inner circle of the film absorption ring 21, the gap-filling layer 22 is mainly used to fill the gap in the middle of the film absorption ring 21, so that water is not easily accumulated in the film absorption ring 21 during drip irrigation and can overflow in time, and an overflow hole corresponding to the drip irrigation hole is also drilled in the middle of the gap-filling layer 22, wherein a in the figure represents the overflow hole corresponding to the drip irrigation hole, which is mainly used to maintain normal drip irrigation work so that the setting of the fixed film patch 2 does not affect the overall drip irrigation effect.

[0033] like Figure 2-3 The covering piece 3 includes a covering layer 32 and a guide piece 31 fixedly connected to the middle part of the two axial edges of the covering layer 32. The covering piece 3 is located at the bottom of the associated tube 1, and the covering piece 3 corresponds to the fixed film patch 2. The left and right radial edges of the covering layer 32 are fixedly connected with a shaping section 321. The shaping section 321 is connected to the electric slide rail on the positioning ring 101. A fixed film ring 322 is fixedly inlaid in the middle of the covering layer 32. The fixed film ring 322 is a hard structure, and the shaping section 321 is an elastic sealing structure, so that the shaping section 321 can be deformed. When covering the drip irrigation port, it can adapt to the shape of the protrusion of the labyrinth dripper installed in the drip irrigation belt and deform, thereby covering the labyrinth dripper, achieving the effect of blocking the drip irrigation hole, and realizing the independent opening and closing of a single drip irrigation hole.

[0034] The absorbing film ring 21 is made of ferromagnetic material, and a soft magnetic strip is fixedly embedded inside the fixed film ring 322. In addition, when viewed from above, the outline of the fixed film ring 322 is located within the outline of the absorbing film ring 21. After the position of the covering piece 3 is changed, the fixed film patch 2 can absorb the covering piece 3, so that an independent space can be formed between the drip irrigation port and the covering piece 3, and isolated from the water in the drip irrigation belt.

[0035] The guide piece 31 has a hard arc-shaped curled edge structure, and the maximum distance between the end of the guide piece 31 and the inner wall of the associated tube 1 is greater than the thickness of the drip irrigation head corresponding to the drip irrigation port, so that it can cross the drip irrigation head, thereby driving the subsequent shaping section 321 to move along the drip irrigation head and cross the drip irrigation head, thereby achieving the effect of covering it.

[0036] When it is found through manual inspection, drone inspection or camera monitoring that crops in some areas are dead and no further irrigation is required, the control center of the drip irrigation system can send the signal to the control center on the corresponding joint pipe 1, such as Figure 4In the figure, b represents a labyrinth dripper installed at the drip irrigation outlet on the inner side of the drip irrigation belt. At this time, the control center on the connecting tube 1 can control the electric slide to start, thereby driving the covering plate 3 to rotate 180°, thereby covering the drip irrigation outlet. At the same time, the fixed film ring 322 just corresponds to the film absorption ring 21, so that the two are adsorbed on each other through the connecting tube 1, so that the drip irrigation outlet is isolated from the connecting tube 1, achieving the control effect of independent opening and closing of a single drip irrigation hole.

[0037] In the above dual-mode irrigation sprinkler adaptive switching mechanism, Figure 4-5 By setting up the adaptive closed-hole unit, when dead plants are found in some areas, the corresponding drip irrigation port on the drip irrigation belt can be controlled to close, so that water irrigation will not continue in that area. Compared with the existing technology, the opening and closing states of a single drip irrigation port can be switched independently, effectively avoiding the long-term irrigation of areas that do not need irrigation, and effectively saving water resources.

[0038] Second implementation method:

[0039] This embodiment is based on the first embodiment, with a water compensation unit added, and the rest of the parts remain the same as the first embodiment.

[0040] Figure 6-7 As shown, c in the figure represents a drip irrigation belt, and the adaptive switching mechanism also includes a plurality of water compensation units installed on the drip irrigation belt, and the plurality of water compensation units are respectively arranged adjacent to the plurality of associated tubes 1. The water compensation unit includes a water absorption outer bag 4 fixedly connected to the outside of the drip irrigation belt, a water collection frame 6 fixedly connected to the inside of the drip irrigation belt, and a water supply rod that movably passes through the water absorption outer bag 4, the drip irrigation belt and the water collection frame 6. The inner wall of the water collection frame 6 is fixedly connected to an electromagnetic plate 61, and a water supply hole is drilled in the middle of the lower end of the water collection frame 6, as shown in FIG. Figure 11 The water supply rod includes a water diversion ball 53, a transmission rod 54 and a connecting rod 52 fixedly connected to the upper and lower ends of the water diversion ball 53, a hollow float 51 fixedly connected to the lower end of the connecting rod 52, and a limiting top ball 501 fixedly connected to the top of the transmission rod 54. The water diversion ball 53 is located in the water collecting frame 6 and is lower than the electromagnetic plate 61. The hollow float 51 is located outside the water collecting frame 6, that is, the connecting rod 52 just moves through the water supply hole. The limiting top ball 501 is located above the water absorption outer bag 4, and the water absorption outer bag 4 is made of sponge material.

[0041] The water-drawing ball 53 includes two hemispheres and a magnetic control plate 531 fixedly connected between the two hemispheres. The upper hemisphere is a water-absorbing structure. When energized, the electromagnetic plate 61 generates a magnetic repulsion force on the magnetic control plate 531. A rectangular long hole 502 is opened in the middle of the transmission rod 54. A cotton swab fixed to and in contact with the upper hemisphere of the water-drawing ball 53 is placed in the rectangular long hole 502. When the water-drawing ball 53 just contacts 601, the rectangular long hole 502 is completely located in the water-absorbing outer bag 4, and the height of the water-absorbing outer bag 4 is greater than the longitudinal span of the rectangular long hole 502 and not greater than 1.5 times the longitudinal span of the rectangular long hole 502, effectively ensuring that the water-absorbing outer bag 4 can completely cover the rectangular long hole 502, so that during the water replenishment process, the rectangular long hole 502 will not be exposed, and the cotton swab inside it can at most be intelligently released from the water-absorbing outer bag 4 without being exposed to the air.

[0042] It is worth noting that the electromagnetic plate 61 is integrated with a medium pressure sensor, and a pressure threshold is set in the pressure sensor, and the pressure threshold is greater than the normal water pressure in the drip irrigation belt. During the up and down movement of the water supply rod, only when the water ball 53 hits the electromagnetic plate 61, the pressure sensor data increases significantly. When the threshold is reached, the signal is fed back to the control center on the associated pipe 1. The control center controls the electromagnetic plate 61 to be energized, thereby generating a magnetic repulsive force, thereby pushing the water supply rod downward to make it move downward. On the one hand, Figure 7 , so that the water supply port is opened, at this time the water in the drip irrigation belt can be replenished into the water collecting frame 6, so that the water ball 53 and its internal cotton swab can absorb water in time; on the other hand, as Figure 8 Under the buoyancy of the hollow float 51, the water supply rod moves up again. At this time, the rectangular long hole 502 gradually enters the water absorption outer bag 4, so that the cotton swab can contact the water absorption outer bag 4. Under the water absorption effect of the water absorption outer bag 4, the water in the drip irrigation belt is transferred. After a lot of water accumulates in the water absorption outer bag 4, it will gradually slide down along the outer wall of the drip irrigation belt under the action of gravity and drip into the soil, thus replenishing water there. Figure 9 As the water-inducing ball 53 hits the electromagnetic plate 61 and is pushed back, the limiting top ball 501 will drop and squeeze the water-absorbing outer bag 4, thereby accelerating the overflow of the water therein and achieving the effect of accelerating water replenishment.

[0043] During actual use, when the soil moisture sensor used to monitor soil moisture content detects that the water content is low and water replenishment is urgently needed, the control center can control the current when the electromagnetic plate 61 is energized, so that the magnetic repulsion force on the water replenishment rod is greater, and the squeezing effect on the water absorption outer bag 4 is better, which facilitates the rapid outflow of water and realizes local separate water replenishment.

[0044] like Figure 10When the soil moisture sensor detects that the soil moisture content is normal and no water replenishment is needed, the electromagnetic plate 61 can be controlled to not be energized when it is hit by the water-inducing ball 53, so that the hollow float 51 remains in contact with the bottom of the water collection frame 6, so that the water replenishment hole is blocked, and the water replenishment rod itself does not fall, thereby isolating the water collection frame 6 from the drip irrigation belt, so that the water inside it will no longer be replenished, thereby achieving the effect of not replenishing water.

[0045] During the above process, the water compensation unit can also switch to different modes according to the actual needs of the soil.

[0046] The outer diameter of the hollow float 51 is larger than the outer diameter of the water diversion ball 53, and the buoyancy of the hollow float 51 is greater than the total gravity of the connecting rod 52, the water diversion ball 53, the transmission rod 54, and the limiting top ball 501 after the water supply rod is saturated with water. This effectively ensures that in the absence of the magnetic repulsion force 61, the buoyancy of the hollow float 51 can make the water supply rod as a whole move upward normally, and when the water diversion ball 53 contacts the electromagnetic plate 61, the hollow float 51 contacts the bottom of the water collection frame 6 and blocks the water supply hole. The inner diameter of the water supply hole is not less than 2 times the diameter of the connecting rod 52, which effectively ensures that when the hollow float 51 does not contact the bottom of the water collection frame 6, the water in the drip irrigation belt can be smoothly replenished into the water collection frame 6, making it less likely for water to be cut off in the water collection frame 6, thereby effectively ensuring stable water supply.

[0047] It is worth noting that the magnetic repulsion force is greater than the buoyancy of the hollow float 51 .

[0048] In summary, for areas where crops have died on the drip irrigation belt line, by setting the adaptive closed-hole unit and controlling the flipping of the covering plate 3, the drip irrigation holes can be blocked, and the opening and closing control of a single drip irrigation port on the drip irrigation belt can be achieved. This can effectively reduce the ineffective irrigation of water in this area without affecting the irrigation of other areas, and effectively avoid the occurrence of long-term irrigation in areas that do not require irrigation. For large-area irrigation systems, it can achieve the effect of saving water resources. At the same time, for water-scarce areas on the drip irrigation belt line, with the setting of the water compensation unit, independent water compensation can be performed on the water-scarce areas without affecting drip irrigation. Compared with the existing technology, the adaptability of this drip irrigation belt to different areas is greatly improved.

[0049] It is worth noting that this adaptive switching mechanism needs to be used in conjunction with the existing smart agricultural drip irrigation system. The smart agricultural drip irrigation system is required to provide the adaptive switching mechanism with information such as soil moisture content and crop growth conditions, so that it can perform different local irrigation suspension or water replenishment operations based on drip irrigation according to different conditions in different areas.

[0050] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A dual-mode irrigation sprinkler adaptive switching mechanism, characterized by: The invention comprises a plurality of connecting tubes (1) respectively installed on a drip irrigation belt and having a control center, wherein the left and right ends of the connecting tubes (1) are fixedly connected to positioning rings (101), the middle of the connecting tubes (1) is drilled with a drip irrigation hole, and the connecting tubes (1) are provided with an adaptive closed-hole unit, wherein the adaptive closed-hole unit comprises a fixed film patch (2) fixedly connected to the middle of the upper end of the connecting tube (1) and a covering hole piece (3) connected between the two positioning rings (101) via an electric slide rail. The fixed film patch (2) includes a film absorbing ring (21) and a gap filling layer (22) fixedly connected to the inner ring of the film absorbing ring (21), and the middle part of the gap filling layer (22) is also provided with an overflow hole corresponding to the drip irrigation hole. The hole covering piece (3) includes a covering layer (32) and guide pieces (31) fixedly connected to the middle parts of the two axial edges of the covering layer (32). The hole covering piece (3) is located at the bottom of the associated tube (1), and the hole covering piece (3) corresponds to the fixed film patch (2). The adaptive switching mechanism further comprises a plurality of water compensation units mounted on the drip irrigation belt, wherein the plurality of water compensation units are respectively arranged adjacent to the plurality of associated tubes (1), and the water compensation units comprise a water absorption outer bag (4) fixedly connected to the outside of the drip irrigation belt, a water collection frame (6) fixedly connected to the inside of the drip irrigation belt, and a water supply rod movably penetrating the water absorption outer bag (4), the drip irrigation belt, and the water collection frame (6).

2. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 1, characterized in that: The left and right radial edges of the covering layer (32) are fixedly connected with a shaping section (321), the shaping section (321) is connected to the electric slide rail on the positioning ring (101), and a film fixing ring (322) is fixedly embedded in the middle of the covering layer (32), the film fixing ring (322) is a hard structure, and the shaping section (321) is an elastic sealing structure.

3. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 2, characterized in that: The film absorbing ring (21) is made of ferromagnetic material, a soft magnetic strip is fixedly embedded inside the fixed film ring (322), and in a top view, the outline of the fixed film ring (322) is located within the outline of the film absorbing ring (21).

4. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 3, characterized in that: The guide piece (31) is a hard arc-shaped curled edge structure, and the maximum distance between the end of the guide piece (31) and the inner wall of the associated tube (1) is greater than the thickness of the drip irrigation head corresponding to the drip irrigation port.

5. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 1, characterized in that: An electromagnetic plate (61) is fixedly connected to the inner wall of the water collecting frame (6), and a water supply hole is drilled in the middle of the lower end of the water collecting frame (6).

6. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 5, characterized in that: The water replenishment rod comprises a water diversion ball (53), a transmission rod (54) and a linkage rod (52) respectively fixedly connected to the upper and lower ends of the water diversion ball (53), a hollow floating ball (51) fixedly connected to the lower end of the linkage rod (52), and a position-limiting top ball (501) fixedly connected to the top of the transmission rod (54). The water diversion ball (53) is located in the water collection frame (6) and is lower than the electromagnetic plate (61). The hollow floating ball (51) is located outside the water collection frame (6). The position-limiting top ball (501) is located above the water absorption outer bag (4).

7. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 6, characterized in that: The water-inducing ball (53) includes two hemispheres and a magnetic control plate (531) fixedly connected between the two hemispheres. The upper hemisphere is a water-absorbing structure. When energized, the electromagnetic plate (61) generates a magnetic repulsive force on the magnetic control plate (531). A rectangular long hole (502) is drilled in the middle of the transmission rod (54). A cotton swab fixed to and in contact with the upper hemisphere of the water-inducing ball (53) is placed in the rectangular long hole (502). When the water-inducing ball (53) just contacts (601), the rectangular long hole (502) is completely located in the water-absorbing outer bag (4), and the height of the water-absorbing outer bag (4) is greater than the longitudinal span of the rectangular long hole (502) and not greater than 1.5 times the longitudinal span of the rectangular long hole (502).

8. The dual-mode irrigation nozzle adaptive switching mechanism according to claim 7, characterized in that: The outer diameter of the hollow float (51) is greater than the outer diameter of the water diversion ball (53), and the buoyancy of the hollow float (51) is greater than the total weight of the connecting rod (52), the water diversion ball (53), the transmission rod (54), and the limiting top ball (501) after the water supply rod is saturated with water. When the water diversion ball (53) and the electromagnetic plate (61) contact each other, the hollow float (51) contacts the bottom of the water collection frame (6) and blocks the water supply hole. The inner diameter of the water supply hole is not less than twice the diameter of the connecting rod (52).

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