Self-adaptive switching mechanism for dual-mode irrigation nozzle

Abstract

The invention relates to a dual-mode irrigation nozzle self-adaptive switching mechanism applied to the related field of agricultural irrigation, for areas where crops wither and die on a drip irrigation belt line, drip irrigation holes can be shielded by arranging a self-adaptive hole closing unit and controlling the overturning of a hole covering sheet, so that the drip irrigation efficiency is improved. Opening and closing control over the single drip irrigation opening in the drip irrigation belt is achieved, so that invalid irrigation of water at the position can be effectively reduced under the condition that irrigation of other areas is not affected, the situation that long-time irrigation is conducted on the areas not needing irrigation is effectively avoided, for a large-area irrigation system, the effect of saving water resources can be achieved, and meanwhile the effect of saving water resources is achieved. For a water-deficient area on a drip irrigation belt line, independent water compensation can be carried out on the water-deficient area on the basis of not influencing drip irrigation by matching with the arrangement of the water compensation unit, and compared with the prior art, the adaptability of the drip irrigation belt to different areas is greatly improved.

Description

Technical Field

[0001] A dual-mode irrigation sprinkler self-adaptive switching mechanism involved in the present invention, particularly a dual-mode irrigation sprinkler self-adaptive switching mechanism applied to the field related to agricultural irrigation. Background Art

[0002] Drip irrigation is an irrigation method that, according to the water requirements of crops, through a pipeline system and emitters installed on the lateral pipes, drops water, moisture, and nutrients required by the crops drop by drop, evenly and slowly into the soil in the root zone of the crops. In the prior art, a drip irrigation system generally includes a water tank, a main pipeline, a branch pipeline, and drip irrigation tapes, mainly realizing uniform and systematic synchronous irrigation of crops.

[0003] Among them, a plurality of drip irrigation orifices facing upward are provided on the drip irrigation tape, and a control valve is connected at the position where the drip irrigation tape corresponds to its branch pipeline. The on-off of the water flow in the entire drip irrigation tape line is controlled by this one control valve, that is, a single drip irrigation orifice does not have the ability to independently switch the opening and closing state. For example, the drip irrigation tapes disclosed in the Chinese patent specification with the publication number CN103782871B, and the drip irrigation tapes and drip irrigation tape devices disclosed in the Chinese patent specification with the publication number CN118303309A.

[0004] However, for agricultural planting, it is very difficult to keep the growth degree of the same crop consistent. There will be a situation where some crops wither and some crops grow more vigorously. For the area where the crops wither, still maintaining the same irrigation as other areas is likely to cause waste of water resources. Especially in the case of drip irrigation with integrated water and fertilizer, it is also likely to cause waste of fertilizer, resulting in increased costs. For some areas where the crops are about to wither or the soil water content is low, their water demand is higher, but the existing drip irrigation tapes are difficult to meet this demand. Summary of the Invention

[0005] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing drip irrigation tapes with overall control of opening and closing are difficult to meet the different requirements of different areas in the same line.

[0006] To solve the above problems, the present invention provides an adaptive switching mechanism for a dual-mode irrigation sprinkler, which includes a plurality of connecting pipes with a control center respectively installed on a drip irrigation tape. Both the left and right ends of the connecting pipe are fixedly connected with positioning rings. A drip irrigation hole is drilled in the middle of the connecting pipe. An adaptive hole-closing unit is arranged on the connecting pipe. The adaptive hole-closing unit includes a fixed film patch fixedly connected to the middle of the upper end of the connecting pipe and a hole-covering piece connected between the two positioning rings through an electric slide rail. The fixed film patch includes a suction film ring and a filling layer fixedly connected to the inner circle of the suction film ring. An overflow hole corresponding to the drip irrigation hole is also drilled in the middle of the filling layer. The hole-covering piece includes a covering layer and guiding pieces respectively fixedly connected to the middle of the two axial edges of the covering layer. The hole-covering piece is located at the bottom of the connecting pipe and corresponds to the fixed film patch; The adaptive switching mechanism further includes a plurality of water compensation units installed on the drip irrigation tape. The plurality of water compensation units are respectively arranged adjacent to the plurality of connecting pipes. The water compensation unit includes a water absorption outer package fixedly connected to the outside of the drip irrigation tape, a water collection frame fixedly connected to the inside of the drip irrigation tape, and a water replenishing rod movably penetrating through the water absorption outer package, the drip irrigation tape, and the water collection frame.

[0007] In the above-mentioned adaptive switching mechanism for a dual-mode irrigation sprinkler, through the setting of the adaptive hole-closing unit, when it is found that there is a dead phenomenon in some areas, the corresponding drip irrigation port on the drip irrigation tape can be controlled to close, so that water irrigation will not continue at this place, achieving the effect of saving water resources. At the same time, in cooperation with the setting of the water compensation unit, independent water compensation can also be carried out for water-deficient areas on the basis of drip irrigation. Compared with the prior art, the adaptability of the drip irrigation tape to different areas is greatly improved, and the opening and closing states of individual drip irrigation ports can be independently switched, thus effectively avoiding the situation of long-term irrigation in areas that do not require irrigation.

[0008] As a further improvement of the present application, fixed shaping sections are fixedly connected to both the left and right radial edges of the covering layer. The shaping sections are connected to the electric slide rails on the positioning rings. A fixed film ring is fixedly inlaid in the middle of the covering layer. The fixed film ring is a rigid structure, and the shaping section is an elastic sealing structure.

[0009] As a further improvement of the present application, the suction film ring is made of a ferromagnetic material. A soft magnetic strip is fixedly inlaid inside the fixed film ring. And from a top view angle, the contour line of the fixed film ring is located inside the contour line of the suction film ring.

[0010] As a further improvement of the present application, the guiding piece is a rigid arc-shaped curled edge structure, and the maximum distance between the end of the guiding piece and the inner wall of the connecting pipe is greater than the thickness of the drip irrigation head corresponding to the drip irrigation port.

[0011] As a further improvement of the present application, an electromagnetic plate is fixedly connected to the inner wall of the water collection frame. A water replenishing hole is drilled in the middle of the lower end of the water collection frame.

[0012] As a further improvement of the present application, the water replenishing rod includes a water guiding ball, a transmission rod and a linkage rod respectively and fixedly connected to the upper and lower ends of the water guiding ball, a hollow floating ball fixedly connected to the lower end of the linkage rod, and a limiting top ball fixedly connected to the top of the transmission rod. The water guiding ball is located in the water collecting frame and is lower than the electromagnetic plate. The hollow floating ball is located outside the water collecting frame, and the limiting top ball is located above the water absorbing outer package.

[0013] As a further improvement of the present application, the water guiding ball includes two hemispheres and a magneto-control plate fixedly connected between the two hemispheres. The upper hemisphere is a water absorbing structure. The energized electromagnetic plate generates a magnetic repulsive force on the magneto-control plate. A rectangular long hole is drilled in the middle of the transmission rod, and a cotton swab fixed and in contact with the upper hemisphere of the water guiding ball is placed in the rectangular long hole. When the water guiding ball just makes contact, the rectangular long hole is completely located inside the water absorbing outer package, and the height of the water absorbing outer package is not greater than 1.5 times the longitudinal span of the rectangular long hole.

[0014] As a further improvement of the present application, the outer diameter of the hollow floating ball is greater than the outer diameter of the water guiding ball, and the buoyancy of the hollow floating ball is greater than the total gravity of the linkage rod, the water guiding ball, the transmission rod, and the limiting top ball after the water replenishing rod is saturated with water. When the water guiding ball is in contact with the electromagnetic plate, the hollow floating ball abuts against the bottom of the water collecting frame and blocks the water replenishing hole. The inner diameter of the water replenishing hole is not less than 2 times the diameter of the linkage rod.

[0015] In summary, for the areas where the crops on the drip irrigation tape line are withered, through the setting of the adaptive closing unit, by controlling the flipping of the hole covering piece, the occlusion of the drip irrigation hole can be realized, and the opening and closing control of a single drip irrigation port on the drip irrigation tape can be achieved. Thus, without affecting the irrigation of other areas, the ineffective irrigation of water at this place can be effectively reduced, and the situation of long-term irrigation in the areas that do not need irrigation can be effectively avoided. For a large-area irrigation system, the effect of saving water resources can be achieved. At the same time, for the areas lacking water on the drip irrigation tape line, with the setting of the water compensation unit, independent water compensation can be carried out for the water-lacking areas without affecting drip irrigation. Compared with the prior art, the adaptability of this drip irrigation tape to different areas is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Is a three-dimensional view of the first embodiment of the present application; Figure 2 Is an exploded view of the first embodiment of the present application; Figure 3 Is a three-dimensional view of the hole covering piece of the first embodiment of the present application; Figure 4 Is a schematic diagram of the process when independently closing the drip irrigation port in the first embodiment of the present application; Figure 5 Is a schematic diagram of closing the drip irrigation ports in some areas on the same drip irrigation tape line in the first embodiment of the present application; Figure 6 This is a perspective view of a second embodiment of the present application; Figure 7 A cross-sectional view of a water compensation unit according to a second embodiment of the present application; Figure 8 This is a cross-sectional schematic diagram of local water replenishment in the second embodiment of the present application; Figure 9 This is a cross-sectional schematic diagram of accelerating the local hydration effect in the second embodiment of the present application; Figure 10 This is a schematic diagram of stopping local water replenishment in the second embodiment of the present application; Figure 11 This is a schematic diagram of a water replenishment rod in the second embodiment of the present application.

[0017] Description of the numbers in the figure: 1 connecting tube, 101 positioning ring, 2 film fixing patch, 21 film absorbing ring, 22 gap filling layer, 3 hole covering piece, 31 guide piece, 32 covering layer, 321 shaping section, 322 film fixing ring, 4 water absorbing outer package, 51 hollow floating ball, 52 connecting rod, 53 water diversion ball, 531 magnetic control plate, 54 transfer rod, 501 limiting top ball, 502 rectangular long hole, 6 water collecting frame, 61 electromagnetic plate. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-2 The figure shows a dual-mode irrigation nozzle adaptive switching mechanism, including a plurality of associated tubes 1 with a control center respectively installed on the drip irrigation belt, the left and right ends of the associated tube 1 are fixedly connected with positioning rings 101, the middle of the associated tube 1 is drilled with a drip irrigation hole, and an adaptive closed-hole unit is arranged on the associated tube 1, the adaptive closed-hole unit includes a fixed film patch 2 fixedly connected to the middle of the upper end of the associated tube 1 and a covering hole piece 3 connected between the two positioning rings 101 through an electric slide rail, the fixed film patch 2 includes a film suction ring 21 and a gap filling layer 22 fixedly connected to the inner circle of the film suction ring 21, the gap filling layer 22 is mainly used to fill the gap in the middle of the film suction ring 21, so that water is not easy to gather in the film suction 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 an 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.

[0020] like Figure 2-3, the hole-covering sheet 3 includes a covering layer 32 and guiding sheets 31 respectively and fixedly connected to the middle parts of the two axial edges of the covering layer 32. The hole-covering sheet 3 is located at the bottom of the connecting pipe 1, and the hole-covering sheet 3 corresponds to the fixed film patch 2. Fixed shaping sections 321 are fixedly connected to both the left and right radial edges of the covering layer 32. The shaping sections 321 are connected to the electric slide rails on the positioning rings 101. A fixed film ring 322 is fixedly inlaid in the middle of the covering layer 32. The fixed film ring 322 is a rigid structure, and the shaping sections 321 are elastic sealing structures, enabling the shaping sections 321 to deform. When covering the drip irrigation orifice, it can deform to adapt to the shape of the raised labyrinth drip head installed in the drip irrigation tape, and then can cover the labyrinth drip head, achieving the effect of blocking the drip irrigation hole and realizing the independent opening and closing of a single drip irrigation hole.

[0021] The film suction ring 21 is made of ferromagnetic material. A soft magnetic strip is fixedly inlaid inside the fixed film ring 322. And from the top view angle, the contour line of the fixed film ring 322 is located inside the contour line of the film suction ring 21. After the position of the hole-covering sheet 3 is converted, the fixed film patch 2 can adsorb the hole-covering sheet 3, enabling an independent space to be formed between the drip irrigation orifice and the hole-covering sheet 3 and isolating it from the water in the drip irrigation tape.

[0022] The guiding sheet 31 is a rigid arc-shaped curled edge structure, and the maximum distance between the end of the guiding sheet 31 and the inner wall of the connecting pipe 1 is greater than the thickness of the drip head corresponding to the drip irrigation orifice, enabling it to straddle the drip head, thereby driving the subsequent shaping section 321 to move along the drip head and straddle the drip head, thus achieving the effect of covering it.

[0023] When it is found through manual inspection, drone inspection or camera monitoring that some areas of crops are withered and there is no need for continuous irrigation, the control center of the drip irrigation system can send this signal to the control center on the corresponding connecting pipe 1, such as Figure 4 , in the figure, b represents the labyrinth drip head installed at the drip irrigation orifice inside the drip irrigation tape. At this time, the control center on the connecting pipe 1 can control the electric slide rail to start, and then drive the hole-covering sheet 3 to rotate 180°, thus covering the drip irrigation orifice. At the same time, at this time, the fixed film ring 322 just corresponds to the film suction ring 21, and then enables the two to adsorb each other across the connecting pipe 1, isolating the drip irrigation orifice from the inside of the connecting pipe 1, achieving the control effect of the independent opening and closing of a single drip irrigation hole.

[0024] In the above dual-mode irrigation sprinkler adaptive switching mechanism, such as Figure 4-5 , through the setting of the adaptive hole-closing unit, when it is found that some areas show withered phenomena, the corresponding drip irrigation orifice on the drip irrigation tape can be controlled to close, and then water irrigation will not continue at this place. Compared with the prior art, the opening and closing states of a single drip irrigation orifice can be independently switched, effectively avoiding the situation of long-term irrigation in areas where irrigation is not required and effectively saving water resources.

[0025] The second implementation mode: Based on the first embodiment, a water compensation unit is newly added in this embodiment, and the rest is the same as the first embodiment.

[0026] Figure 6-7 As shown, in the figure, c represents the drip irrigation tape. The adaptive switching mechanism further includes a plurality of water compensation units installed on the drip irrigation tape. The plurality of water compensation units are respectively arranged adjacent to a plurality of connecting pipes 1. The water compensation unit includes a water absorption outer package 4 fixedly connected to the outside of the drip irrigation tape, a water collection frame 6 fixedly connected to the inside of the drip irrigation tape, and a water replenishing rod that movably penetrates through the water absorption outer package 4, the drip irrigation tape, and the water collection frame 6. An electromagnetic plate 61 is fixedly connected to the inner wall of the water collection frame 6. A water replenishing hole is drilled in the middle of the lower end of the water collection frame 6. As Figure 11 , the water replenishing rod includes 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 limit top ball 501 fixedly connected to the top of the transmission rod 54. The water diversion ball 53 is located inside 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, that is, the linkage rod 52 just movably penetrates through the water replenishing hole. The limit top ball 501 is located above the water absorption outer package 4. The water absorption outer package 4 is made of sponge material.

[0027] The water diversion ball 53 includes two hemispheres and a magnetically controlled plate 531 fixedly connected between the two hemispheres. The upper hemisphere is a water absorption structure. The energized electromagnetic plate 61 generates a magnetic repulsive force on the magnetically controlled plate 531. A rectangular long hole 502 is drilled in the middle of the transmission rod 54. A cotton swab fixedly connected to and in contact with the upper hemisphere of the water diversion ball 53 is placed in the rectangular long hole 502. When the water diversion ball 53 just contacts 601, the rectangular long hole 502 is completely located inside the water absorption outer package 4, and the height of the water absorption outer package 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 absorption outer package 4 can completely cover the rectangular long hole 502, so that during the water replenishing process, the rectangular long hole 502 will not be exposed, and the cotton swab inside it can at most be in contact with the water absorption outer package 4 and will not be exposed to the air.

[0028] It should be noted that a pressure sensor is integrated in the electromagnetic plate 61, 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 tape. During the up and down movement of the water replenishing rod, only when the water diversion ball 53 touches the electromagnetic plate 61, the data of the pressure sensor increases significantly. When the threshold is reached, the signal is fed back to the control center on the connecting pipe 1, and the control center controls the electromagnetic plate 61 to be energized, thereby generating a magnetic repulsive force, which pushes the water replenishing rod downward and makes it move downward. On the one hand, as Figure 7 , the water replenishing port is opened. At this time, the water in the drip irrigation tape can be replenished into the water collection frame 6, so that the water diversion ball 53 and the cotton swab inside it can absorb water in time; on the other hand, as Figure 8, under the buoyancy of the hollow floating ball 51, the water replenishing rod moves upward again. At this time, the rectangular long hole 502 gradually enters into the water absorption outer package 4, enabling the cotton swab to contact the water absorption outer package 4. Under the water absorption effect of the water absorption outer package 4, the water in the drip irrigation belt is transferred. After the water absorption outer package 4 accumulates more water, it will gradually slide down along the outer wall of the drip irrigation belt under the action of gravity and drip into the soil to achieve water replenishment at this place, as Figure 9 , when the water guiding ball 53 touches the electromagnetic plate 61 and is pushed back, the limiting top ball 501 will descend accordingly and squeeze the water absorption outer package 4, thereby accelerating the overflow of water inside it and achieving the effect of accelerating water replenishment.

[0029] During actual use, when the soil moisture sensor for monitoring the soil water content detects that the water content is low and urgent water replenishment is needed, the control center can control the current when the electromagnetic plate 61 is energized, so that the magnetic repulsive force received by the water replenishing rod is greater, making the extrusion effect on the water absorption outer package 4 better, facilitating the rapid outflow of water, and achieving separate water replenishment for the local area.

[0030] As Figure 10 , when the soil moisture sensor detects that the soil water content is normal and no water replenishment is needed, it can be controlled that the electromagnetic plate 61 is not energized even when touched by the water guiding ball 53. Furthermore, the hollow floating ball 51 is kept in a state of touching the bottom of the water collecting frame 6, blocking the water replenishing hole, and the water replenishing rod itself will not fall. Furthermore, the water collecting frame 6 is isolated from the drip irrigation belt, and the water inside it will not be replenished anymore, thereby achieving the effect of not replenishing water.

[0031] During the above process, the water compensation unit can also switch between different modes according to the actual needs of the soil.

[0032] The outer diameter of the hollow floating ball 51 is greater than the outer diameter of the water guiding ball 53, and the buoyancy of the hollow floating ball 51 is greater than the total gravity of the connecting rod 52, the water guiding ball 53, the transfer rod 54, and the limiting top ball 501 after the water replenishing rod is saturated with water absorption. This effectively ensures that under the action of no magnetic repulsive force of 61, the buoyancy of the hollow floating ball 51 can make the entire water replenishing rod move upward normally. When the water guiding ball 53 contacts the electromagnetic plate 61, the hollow floating ball 51 touches the bottom of the water collecting frame 6 and blocks the water replenishing hole. The inner diameter of the water replenishing hole is not less than 2 times the diameter of the connecting rod 52, effectively ensuring that when the hollow floating ball 51 does not contact the bottom of the water collecting frame 6, the water in the drip irrigation belt can smoothly replenish into the water collecting frame 6, making it not easy to have a water cut-off situation in the water collecting frame 6, and thus effectively ensuring stable water replenishment.

[0033] Among them, it is worth noting that the magnetic repulsive force is greater than the buoyancy of the hollow floating ball 51.

[0034] In summary, for the areas where crops on the drip irrigation tape line have withered, through the setting of the adaptive closed-hole unit, by controlling the flipping of the hole-covering piece 3, the occlusion of the drip irrigation holes can be realized, and the opening and closing control of a single drip irrigation port on the drip irrigation tape can be achieved. Thus, without affecting the irrigation of other areas, the ineffective irrigation of water at this place can be effectively reduced, and the situation of long-term irrigation in the areas that do not require irrigation can be effectively avoided. For a large-scale irrigation system, the effect of saving water resources can be achieved. At the same time, for the areas lacking water on the drip irrigation tape line, with the setting of the water compensation unit, independent water compensation can be carried out for the water-lacking areas without affecting drip irrigation. Compared with the prior art, the adaptability of this drip irrigation tape to different areas is greatly improved.

[0035] It should be noted that this adaptive switching mechanism needs to be used in conjunction with the existing intelligent agricultural drip irrigation system. The intelligent agricultural drip irrigation system needs to provide information such as soil water content and crop growth conditions for this adaptive switching mechanism, so as to facilitate its different operations of stopping irrigation or replenishing water locally on the basis of drip irrigation according to different situations in different areas.

[0036] Combined with the current actual requirements, the above-mentioned implementation manner adopted in this application, the protection scope is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes made 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 in that: Including a plurality of connecting pipes (1) with a control center respectively installed on the drip irrigation tape. Both the left and right ends of the connecting pipe (1) are fixedly connected with positioning rings (101). A drip irrigation hole is drilled in the middle of the connecting pipe (1). An adaptive hole-closing unit is arranged on the connecting pipe (1). The adaptive hole-closing unit includes a fixed film patch (2) fixedly connected to the middle of the upper end of the connecting pipe (1) and a hole-covering film (3) connected between the two positioning rings (101) through an electric slide rail. The fixed film patch (2) includes a suction film ring (21) and a hole-filling layer (22) fixedly connected to the inner circle of the suction film ring (21). An overflow hole corresponding to the drip irrigation hole is also drilled in the middle of the hole-filling layer (22). The hole-covering film (3) includes a covering layer (32) and guiding pieces (31) respectively fixedly connected to the middle of the two axial edges of the covering layer (32). The hole-covering film (3) is located at the bottom of the connecting pipe (1), and the hole-covering film (3) corresponds to the fixed film patch (2). The adaptive switching mechanism further includes a plurality of water compensation units installed on the drip irrigation tape. The plurality of water compensation units are respectively arranged adjacent to the plurality of connecting pipes (1). The water compensation unit includes a water absorption outer package (4) fixedly connected to the outside of the drip irrigation tape, a water collection frame (6) fixedly connected to the inside of the drip irrigation tape, and a water replenishing rod movably penetrating through the water absorption outer package (4), the drip irrigation tape and the water collection frame (6).

2. The adaptive switching mechanism of a dual-mode irrigation sprinkler according to claim 1, characterized in that: Fixed shape sections (321) are fixedly connected to both the left and right radial edges of the covering layer (32). The fixed shape sections (321) are 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 rigid structure, and the fixed shape section (321) is an elastic sealing structure.

3. The adaptive switching mechanism of a dual-mode irrigation sprinkler according to claim 2, wherein: The suction film ring (21) is made of a ferromagnetic material. A soft magnetic strip is fixedly inlaid inside the fixed film ring (322). And from a top view angle, the contour line of the fixed film ring (322) is located inside the contour line of the suction film ring (21).

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

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

6. The adaptive switching mechanism of a dual-mode irrigation sprinkler according to claim 5, characterized in that: The water replenishing rod includes a water guiding ball (53), transfer rods (54) and linkage rods (52) respectively fixedly connected to the upper and lower ends of the water guiding ball (53), a hollow floating ball (51) fixedly connected to the lower end of the linkage rod (52), and a limiting top ball (501) fixedly connected to the top of the transfer rod (54). The water guiding ball (53) is located inside 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 limiting top ball (501) is located above the water absorption outer package (4).

7. The adaptive switching mechanism of a dual-mode irrigation sprinkler according to claim 6, characterized in that: The water diversion ball (53) includes two hemispheres and a magnetically controlled plate (531) fixedly connected between the two hemispheres. The upper hemisphere is a water-absorbing structure. The electromagnet plate (61) after being powered on generates a magnetic repulsive force on the magnetically controlled plate (531). A rectangular long hole (502) is drilled in the middle of the transfer rod (54). A cotton swab fixed and in contact with the upper hemisphere of the water diversion ball (53) is placed in the rectangular long hole (502). When the water diversion ball (53) just contacts (601), the rectangular long hole (502) is completely located inside the water-absorbing outer package (4), and the height of the water-absorbing outer package (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 adaptive switching mechanism of a dual-mode irrigation sprinkler according to claim 7, characterized in that: The outer diameter of the hollow floating ball (51) is greater than the outer diameter of the water diversion ball (53), and the buoyancy of the hollow floating ball (51) is greater than the total gravity of the linkage rod (52), the water diversion ball (53), the transfer rod (54), and the limit top ball (501) after the water replenishing rod is saturated with water. When the water diversion ball (53) contacts the electromagnet plate (61), the hollow floating ball (51) abuts against the bottom of the water collection frame (6) and blocks the water replenishing hole. The inner diameter of the water replenishing hole is not less than 2 times the diameter of the linkage rod (52).

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