Floating type alternately-switched water-saving irrigation device and irrigation method thereof

Abstract

The invention relates to the technical field of water-saving irrigation, in particular to a floating type alternately-switched water-saving irrigation device and an irrigation method thereof.The floating type alternately-switched water-saving irrigation device comprises a water supply pipe, a water inlet pipe and a lower discharging pipe, the water inlet pipe and the lower discharging pipe are communicated with the side wall of the water supply pipe, and a partition plate is arranged in the water supply pipe; the piston disc is installed in the water supply pipe in a sliding and sealing mode, and the piston disc divides a pipeline, located above the partition plate, in the water supply pipe into an upper conveying cavity and a lower conveying cavity; the first guide pipe and the second guide pipe are arranged on the side wall of the water supply pipe and communicate with the lower conveying cavity and the upper conveying cavity correspondingly. The sprinkling irrigation mechanism is arranged in the water supply pipe and is connected with the piston disc; the conduction regulation and control mechanism is arranged in the water supply pipe and connected with the piston disc, a trigger switching mechanism is arranged on the conduction regulation and control mechanism, and the position of the piston disc can be changed by adjusting the conduction state of the first guide pipe and the second guide pipe, so that the sprinkling irrigation pressure and the sprinkling irrigation range are changed through the sprinkling irrigation mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water-saving irrigation technology, in particular to a floating type alternating switching water-saving irrigation device and an irrigation method thereof. BACKGROUND

[0002] As an important economic crop, tea tree has special requirements for water management due to its growth characteristics. The root system of tea tree is relatively shallow, mainly distributed in the top layer of soil 20-30 cm, which requires both moderate soil moisture and good air permeability.

[0003] During different growth stages and under different climate conditions, there are different needs for irrigation methods. During the daily growth period, micro-sprinkling is mainly used to accurately irrigate the root area of tea trees with small water volume, which can meet the water demand and avoid soil compaction.

[0004] However, during the summer high temperature period (especially at noon), the evaporation of water in tea trees is large, and micro-sprinkling cannot meet the high evaporation, which easily leads to water shortage in the root area, and micro-sprinkling cannot act on the leaf area, resulting in high temperature of the leaf area and easy occurrence of high temperature burn.

[0005] To this end, a combination of micro-sprinkling and top sprinkling can be used to effectively water tea trees. However, the sprinkling range and pressure are usually static during top sprinkling. If the sprinkling range is not set well, it is easy to cause excessive sprinkling in the overlapping area of adjacent sprinkling devices, thereby forming a clear sprinkling gradient. SUMMARY

[0006] The present application aims to provide a floating type alternating switching water-saving irrigation device and an irrigation method thereof to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] A floating type alternating switching water-saving irrigation device, comprising:

[0009] a water supply pipe, an inlet pipe and a lower discharge pipe connected to the side wall of the water supply pipe, and a partition plate arranged in the water supply pipe;

[0010] Further comprising:

[0011] a piston disc slidingly and sealingly installed in the water supply pipe, the piston disc separates the pipe above the partition plate in the water supply pipe into an upper delivery chamber and a lower delivery chamber;

[0012] a first conduit and a second conduit arranged on the side wall of the water supply pipe and connected to the lower delivery chamber and the upper delivery chamber, respectively;

[0013] A spray irrigation mechanism is arranged in the water supply pipe and connected with the piston disc;

[0014] A conduction control mechanism is arranged in the water supply pipe and connected with the piston disc, and a trigger switching mechanism is arranged on the conduction control mechanism, which can adjust the conduction state of the first conduit and the second conduit through the conduction control mechanism.

[0015] As a further scheme of the present application, the spray irrigation mechanism comprises a through groove formed on the piston disc and a through hole in which a one-way valve is arranged, and an extension tube matched with the through groove is arranged at one end of the piston disc away from the partition plate, and a plurality of spray heads penetrating the water supply pipe are arranged on the extension tube in a circumferential equidistant manner.

[0016] As a further scheme of the present application, the spray irrigation mechanism further comprises an up push rod arranged on the piston disc and penetrating the water supply pipe, an activity plate is arranged at the end of the up push rod, a connecting rod hinged with the spray head is hinged on the activity plate, a first spring is sleeved on the up push rod, and the two ends of the first spring are respectively abutted with the piston disc and the water supply pipe.

[0017] As a further scheme of the present application, the conduction control mechanism comprises a fixed sleeve arranged on the partition plate, a spiral groove is formed on the circumferential outer wall of the fixed sleeve, and a movable sleeve is axially slid on the fixed sleeve, and a limiting block is arranged on the inner wall of the movable sleeve and slidably fitted with the spiral groove.

[0018] As a further scheme of the present application, a rotating plate is arranged on the movable sleeve, a sealing ring is arranged at the end of the rotating plate and sealingly matched with the water supply pipe, a discharge groove matched with the first conduit and the second conduit is formed on the sealing ring, a second spring is sleeved on the fixed sleeve, and the two ends of the second spring are respectively abutted with the partition plate and the rotating plate.

[0019] As a further scheme of the present application, the trigger switching mechanism comprises a down push rod arranged on the side wall of the piston disc and penetrating the partition plate, a support plate is rotatably arranged at the end of the down push rod, a guide column fixedly connected with the rotating plate is slidably arranged on the support plate, a limiting ring is arranged on the guide column, and a third spring abutting with the limiting ring and the support plate is sleeved on the guide column.

[0020] Further comprising a limiting assembly and a guide assembly arranged on the fixed sleeve and connected with the limiting ring.

[0021] As a further further scheme of the present application: the limiting assembly comprises a rotating ring rotatably installed on the fixed sleeve, the rotating ring is provided with symmetrically arranged support sleeves, the support sleeves are axially slidably provided with support rods in abutting fit with the limiting ring.

[0022] As a further further scheme of the present application: the guiding assembly comprises a clamping groove formed in the circumferential outer wall of the support sleeve, the support rod is provided with a limiting column in sliding fit with the clamping groove, the support sleeve and the support rod are provided with a fourth spring, the two ends of the fourth spring are in abutting fit with the rotating ring and the limiting column respectively, and the support plate is provided with a limiting plate in abutting fit with the limiting column.

[0023] As a further further scheme of the present application: the first sealing disc and the second sealing disc are slidably and sealingly installed in the water supply pipe, and the first sealing disc is fixedly connected with the second sealing disc.

[0024] A floating type alternate switching water-saving irrigation method, comprising the following steps:

[0025] Step one: the water supply pipe, the water inlet pipe and the lower discharge pipe are controlled to be communicated with each other through the first sealing disc and the second sealing disc, and micro-irrigation is performed through the lower discharge pipe;

[0026] Step two: the lower discharge pipe is controlled to be blocked by the second sealing disc, and the first conduit is communicated with the lower delivery chamber under the action of the communication regulation mechanism, and the second conduit is in a blocked state;

[0027] Step three: the water in the water supply pipe enters the lower delivery chamber through the first conduit, and the piston disc is pushed, so that large-scale sprinkling irrigation is performed through the sprinkling irrigation mechanism;

[0028] Step four: when the piston disc moves to the end of the stroke, the communication regulation mechanism is controlled to move by triggering the switching mechanism, so that the first conduit is blocked, and the second conduit is communicated with the lower delivery chamber;

[0029] Step five: the water in the water supply pipe enters the lower delivery chamber through the second conduit, and drives the piston disc to reset, so that the sprinkling irrigation mechanism performs sprinkling irrigation in a pressure fluctuation state.

[0030] Compared with the prior art, the present application has the following advantages:

[0031] The present application can realize the mode switching of micro-sprinkling irrigation and top sprinkling irrigation by adjusting the positions of the first sealing disc and the second sealing disc, realizes accurate micro-sprinkling irrigation during daily maintenance, effectively saves water resources, and switches to top sprinkling irrigation during high-temperature period to quickly reduce the temperature of the tea tree canopy.

[0032] When the top sprinkling irrigation is carried out, the piston disc can control the movement of the sprinkling irrigation mechanism according to the water pressure fluctuation in the upper conveying chamber and the lower conveying chamber, when the piston disc moves upward, the deflection angle of the sprinkler is increased by the upper push rod and the connecting rod mechanism, and the sprinkling irrigation range is correspondingly expanded; when the piston disc resets downward, the deflection angle of the sprinkler is reduced, and the sprinkling irrigation range is correspondingly contracted, in this way, through the periodic range change of the sprinkling irrigation, the irrigation uniformity is effectively improved, and the problems of irrigation dead angle and over-irrigation in the overlapping area existing in the traditional fixed sprinkling irrigation are avoided.

[0033] When the deflection angle of the sprinkler is increased and the sprinkling irrigation range is expanded, the sprinkler is under lower water supply pressure, forming soft atomization spraying, which not only expands the wetting perimeter, but also avoids the impact damage of water droplets to the leaves; when the deflection angle of the sprinkler is reduced and the sprinkling irrigation range is contracted, the sprinkler is under higher water supply pressure, forming concentrated water column injection, which enhances the water penetration, and the coordinated change of the pressure and the range simulates the characteristics of natural rainfall, so that the tea tree leaves and root system can be supplied with the most suitable water. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The structure schematic diagram of an embodiment of the floating type alternating switching water-saving irrigation device.

[0035] Figure 2 The structure schematic diagram of another angle in an embodiment of the floating type alternating switching water-saving irrigation device.

[0036] Figure 3 The cross-sectional structure schematic diagram of the water supply pipe and the water inlet pipe in an embodiment of the floating type alternating switching water-saving irrigation device.

[0037] Figure 4 The structure schematic diagram of the first sealing disc and the second sealing disc in an embodiment of the floating type alternating switching water-saving irrigation device. Figure 3

[0038] Figure 5 The structure schematic diagram of the first sealing disc and the second sealing disc in an embodiment of the floating type alternating switching water-saving irrigation device.

[0039] Figure 6 The structure schematic diagram of the first sealing disc and the second sealing disc in an embodiment of the floating type alternating switching water-saving irrigation device.

[0040] Figure 7 The connection relationship schematic diagram of part of the sprinkling irrigation mechanism, part of the conduction regulation mechanism and part of the triggering switching mechanism in an embodiment of the floating type alternating switching water-saving irrigation device.

[0041] Figure 8 The structure schematic diagram of part of the conduction regulation mechanism and part of the triggering switching mechanism in an embodiment of the floating type alternating switching water-saving irrigation device.

[0042] ​Figure 9 Structure diagram of part of the spray irrigation mechanism in one embodiment of the floating type of alternate switching water-saving irrigation device.

[0043] Figure 10 Explosive structure diagram of part of the trigger switching mechanism in one embodiment of the floating type of alternate switching water-saving irrigation device.

[0044] Figure 11 Explosive structure diagram of part of the conduction control mechanism and part of the trigger switching mechanism in one embodiment of the floating type of alternate switching water-saving irrigation device.

[0045] Figure 12 Explosive structure diagram of part of the spray irrigation mechanism in one embodiment of the floating type of alternate switching water-saving irrigation device.

[0046] In the figure: 1, water supply pipe; 2, water inlet pipe; 3, lower discharge pipe; 4, first sealing disc; 5, second sealing disc; 6, partition plate; 7, first guide pipe; 8, second guide pipe; 9, piston disc; 901, through groove; 902, through hole; 10, telescopic pipe; 11, spray head; 12, upward push rod; 13, movable plate; 14, first spring; 15, connecting rod; 16, support plate; 17, fixed sleeve; 1701, helical groove; 18, movable sleeve; 1801, limiting block; 19, rotating plate; 20, sealing ring; 2001, discharge groove; 21, second spring; 22, guide column; 23, limiting ring; 24, third spring; 25, support sleeve; 2501, clamping groove; 26, support rod; 2601, limiting column; 27, fourth spring; 28, limiting plate; 29, downward push rod. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0049] Please refer to Figures 1-12In this embodiment of the invention, a floating, alternating water-saving irrigation device includes:

[0050] Water supply pipe 1, and inlet pipe 2 and drain pipe 3 connected to the side wall of water supply pipe 1, with baffle 6 installed inside water supply pipe 1;

[0051] Also includes:

[0052] Piston disc 9 is slidably and sealed inside the water supply pipe 1. The piston disc 9 divides the pipeline in the water supply pipe 1 located above the partition 6 into an upper delivery chamber and a lower delivery chamber.

[0053] The first conduit 7 and the second conduit 8 are disposed on the side wall of the water supply pipe 1 and are respectively connected to the lower delivery chamber and the upper delivery chamber;

[0054] A sprinkler irrigation mechanism is installed inside the water supply pipe 1 and connected to the piston disc 9;

[0055] A flow control mechanism is installed inside the water supply pipe 1 and connected to the piston disc 9. The flow control mechanism is equipped with a trigger switching mechanism, which can adjust the flow state of the first conduit 7 and the second conduit 8 through the flow control mechanism.

[0056] Specifically, when irrigating tea trees, micro-sprinkler irrigation is usually sufficient, meaning a small amount of water is sprayed onto the roots of the tea trees. During midday in summer, top irrigation is needed to lower the temperature through evaporation of water from the leaves. Therefore, the water supply from the inlet pipe 2 can be controlled according to the required irrigation conditions. When micro-sprinkler irrigation is needed, the inlet pipe 2 delivers a small flow of water to the supply pipe 1, and the water is guided to the roots of the tea trees through the drain pipe 3. When top irrigation is needed, the inlet pipe 2 delivers a large flow of water to the supply pipe 1. At this time, the first conduit 7 is open, and the second conduit 8 is closed. In the current state, water in the water supply pipe 1 enters the lower delivery chamber through the first conduit 7, driving the piston disc 9 to move. This causes the sprinkler mechanism to continuously change the irrigation range while simultaneously irrigating the water. The piston disc 9 also drives the trigger switching mechanism to move. When the piston disc 9 moves to the end of its stroke away from the partition 6, the control mechanism is activated, causing the first conduit 7 to be blocked and the second conduit 8 to be open. At this time, the water in the water supply pipe 1 will enter the upper delivery chamber through the second conduit 8 and push the piston disc 9 toward the initial position to change the irrigation pressure of the sprinkler mechanism, thereby ensuring the irrigation range and uniformity.

[0057] Please see Figures 1-3 , Figure 5 The water supply pipe 1 is equipped with a first sealing disc 4 and a second sealing disc 5, which are fixedly connected to each other.

[0058] It should be noted that the first sealing disc 4 and the second sealing disc 5 can be adjusted in position within the water supply pipe 1 by a cylinder. In the initial state, the first sealing disc 4 and the second sealing disc 5 can control the water supply pipe 1, the inlet pipe 2, and the drain pipe 3 to be interconnected. At this time, the inlet pipe 2 pumps a small flow of water into the water supply pipe 1, and when the water flows to the drain pipe 3, it is discharged through the drain pipe 3.

[0059] When the weather is hot, the cylinder controls the first sealing disc 4 and the second sealing disc 5 to move away from the partition 6, and positions the first sealing disc 4 between the water inlet pipe 2 and the lower drain pipe 3. Under the action of the first sealing disc 4, the lower drain pipe 3 is blocked, and the water inlet pipe 2 and the water supply pipe 1 are connected in the cavity between the first sealing disc 4 and the partition 6. At the same time, the water pressure and flow rate of the water inlet pipe 2 are increased to cope with the subsequent large-scale sprinkler irrigation.

[0060] Please see Figures 1-3 , Figure 6 , Figure 7 , Figure 9 , Figure 12 The sprinkler mechanism includes a through groove 901 and a through hole 902 formed on the piston disc 9. A one-way valve is installed in the through hole 902. A telescopic tube 10 is provided at one end of the piston disc 9 away from the partition plate 6, which is in communication with the through groove 901. A plurality of nozzles 11 are provided on the telescopic tube 10, which pass through the water supply pipe 1 and are distributed equidistantly in a circle. The sprinkler mechanism also includes an upper push rod 12 provided on the piston disc 9 and passing through the water supply pipe 1. A movable plate 13 is provided at the end of the upper push rod 12. A connecting rod 15 hinged to the movable plate 13 and hinged to the nozzle 11 is provided. A first spring 14 is sleeved on the upper push rod 12. The two ends of the first spring 14 abut against the piston disc 9 and the water supply pipe 1, respectively.

[0061] Please see Figure 9 In detail, in the initial state, the piston disc 9 is located at the end of its stroke near the partition 6, that is, the distance between the piston disc 9 and the top of the water supply pipe 1 is the largest. The extension of the first spring 14 in its natural state is greater than the maximum distance between the piston disc 9 and the top of the water supply pipe 1. Therefore, the first spring 14 always provides the piston disc 9 with a thrust in the direction near the partition 6. Under the action of the piston disc 9, the upper push rod 12 controls the movable plate 13 to be located at the end of its stroke near the water supply pipe 1, so as to control the angle between the nozzle 11 and the water supply pipe 1 to be the smallest through the connecting rod 15. In this state, both the upper delivery chamber and the lower delivery chamber are filled with water.

[0062] When the second conduit 8 is blocked and the first conduit 7 pumps water from the water supply pipe 1 to the lower delivery chamber, the water in the lower delivery chamber will enter the telescopic pipe 10 through the through groove 901 and be discharged through the nozzle 11. When the first conduit 7 is blocked and the second conduit 8 pumps water from the water supply pipe 1 to the upper delivery chamber, the water in the upper delivery chamber will enter the lower delivery chamber through the one-way valve, and then enter the telescopic pipe 10 through the through groove 901 until it is discharged through the nozzle 11. By changing the pumping position of the water flow, the position of the piston disc 9 can be adjusted, thereby controlling the movement of the movable plate 13 through the upper push rod 12, and adjusting the spraying range of the nozzle 11 through the connecting rod 15.

[0063] Please see Figure 4 , Figure 7 , Figure 8 , Figure 10 , Figure 11 The conduction control mechanism includes a fixed sleeve 17 disposed on the partition 6. A spiral groove 1701 is formed on the outer circumferential wall of the fixed sleeve 17. A movable sleeve 18 is slidably disposed on the fixed sleeve 17. A limiting block 1801 is disposed on the inner wall of the movable sleeve 18 and slides into the spiral groove 1701. A rotating plate 19 is disposed on the movable sleeve 18. A sealing ring 20 is disposed at the end of the rotating plate 19 and seals against the water supply pipe 1. A discharge groove 2001 is formed on the sealing ring 20 and conducts through the first conduit 7 and the second conduit 8. A second spring 21 is sleeved on the fixed sleeve 17. The two ends of the second spring 21 abut against the partition 6 and the rotating plate 19, respectively.

[0064] Please see Figure 4 , Figure 7 , Figure 8 , Figure 10 , Figure 11The triggering switching mechanism includes a lower push rod 29 disposed on the side wall of the piston disc 9 and penetrating the partition plate 6. A support plate 16 is rotatably mounted on the end of the lower push rod 29. A guide post 22, which is fixedly connected to the rotating plate 19, is slidably mounted on the support plate 16. A limit ring 23 is disposed on the guide post 22. A third spring 24, which abuts against the limit ring 23 and the support plate 16, is sleeved on the guide post 22. The mechanism also includes a limiting component and a guiding component disposed on the fixed sleeve 17 and connected to the limit ring 23. The limiting component includes a rotating ring rotatably mounted on the fixed sleeve 17. The rotating ring is provided with symmetrically arranged support sleeves 25. A support rod 26 is axially slidably disposed inside the support sleeve 25 and abuts against the limiting ring 23. The guiding assembly includes a groove 2501 formed on the outer circumference of the support sleeve 25. A limiting post 2601 is provided on the support rod 26 and slides into the groove 2501. A fourth spring 27 is sleeved on the support sleeve 25 and the support rod 26. The two ends of the fourth spring 27 abut against the rotating ring and the limiting post 2601, respectively. A limiting plate 28 is provided on the support plate 16 and abuts against the limiting post 2601.

[0065] Please see Figure 10 Furthermore, the limiting plate 28 is designed to protrude in the middle, and can be divided into five segments from top to bottom in the vertical plane, namely the first vertical segment, the first inclined segment, the second vertical segment, the second inclined segment, and the third vertical segment;

[0066] Please see Figure 8 In the initial state, the movable sleeve 18 and the rotating plate 19 are located at the end of their stroke away from the partition 6, that is, the distance between the rotating plate 19 and the partition 6 is the largest, so that the limiting block 1801 is located at the end of the stroke of the spiral groove 1701 away from the partition 6. The extension of the second spring 21 in its natural state is greater than the maximum distance between the rotating plate 19 and the partition 6. Therefore, the second spring 21 always provides the rotating plate 19 with a thrust in the direction away from the partition 6. In this state, the rotating plate 19 will control the discharge groove 2001 to be in a conductive state with the first conduit 7 through the sealing ring 20, and block the second conduit 8.

[0067] The piston disc 9 is located at the end of its stroke near the partition 6, thereby controlling the support plate 16 to be located at the end of its stroke away from the partition 6 via the push rod 29. At this time, the distance between the support plate 16 and the rotating plate 19 is the largest, that is, the distance between the support plate 16 and the limiting ring 23 is the largest. The extension of the third spring 24 in its natural state is greater than the maximum distance between the support plate 16 and the rotating plate 19. Therefore, the third spring 24 is in a pre-compressed state and always provides the rotating plate 19 with a thrust in the direction away from the limiting ring 23. At this time, the elastic potential energy of the third spring 24 is less than the elastic potential energy of the second spring 21.

[0068] In this state, the distance between the rotating plate 19 and the rotating ring is the smallest, and the support rod 26 is just above the limiting ring 23. At this time, the limiting post 2601 is located at the connection position of the first vertical section and the first inclined section of the limiting plate 28, and is located at the end of the stroke of the slot 2501 near the rotating ring, so that the support rod 26 is located at the end of the stroke near the rotating ring. At this time, the distance between the limiting post 2601 and the rotating ring is the smallest, and the extension of the fourth spring 27 in its natural state is greater than the minimum distance between the limiting post 2601 and the rotating ring. Therefore, the fourth spring 27 is in a pre-compressed state and always provides the limiting post 2601 with a thrust in the direction away from the rotating ring.

[0069] When top irrigation is required, the lower drain pipe 3 is blocked under the action of the first sealing disc 4, and the water inlet pipe 2, the lower drain pipe 3, and the first conduit 7 are connected. The pumping capacity of the first conduit 7 under normal pressure is greater than the discharge capacity of the channel 901 and the spraying capacity of the nozzle 11, while the pumping capacity of the one-way valve under normal pressure is less than the discharge capacity of the channel 901 and the nozzle 11. As a result, the water in the lower conveying chamber will enter the telescopic pipe 10 through the channel 901 and be discharged through the nozzle 11. At the same time, the water pressure in the lower conveying chamber gradually increases and pushes the piston disc 9 to move away from the partition 6, thereby compressing the first spring 14. At this time, the water in the upper conveying chamber will enter the lower conveying chamber through the one-way valve.

[0070] The piston disc 9 will drive the upper push rod 12 to move, and through the movable plate 13 and the connecting rod 15, control the angle between the nozzle 11 and the water supply pipe 1 to increase, thereby increasing the spraying range of the nozzle 11.

[0071] The piston disc 9 will also drive the lower push rod 29 to move, causing the support plate 16 to move towards the partition plate 6. The support plate 16 will compress the third spring 24. Since the elastic potential energy of the third spring 24 in this state is less than that of the second spring 21, the height of the limiting ring 23, the guide post 22, and the rotating plate 19 will not change. The support plate 16 will also drive the limiting plate 28 to move, causing the first vertical section of the limiting plate 28 to separate from the limiting post 2601. Under the action of the fourth spring 27, the limiting post 2601 will be pushed to move into the first inclined section, causing the support rod 26 to move to fit against the side of the limiting ring 23 near the rotating plate 19. Under the limiting action of the support rod 26, the limiting ring 23 cannot move towards the partition plate 6.

[0072] As the piston disc 9 continues to move, the third spring 24 is continuously compressed under the action of the support plate 16, and the elastic potential energy of the third spring 24 will exceed that of the second spring 21, causing the limiting ring 23, guide post 22, and rotating plate 19 to tend to move towards the partition 6. The limiting post 2601 will slide along the first inclined section, the second vertical section, and the second inclined section. When the piston disc 9 moves to the end of its stroke, that is, when the size of the lower conveying chamber reaches its maximum, the limiting post 2601 moves to the connection position of the second inclined section and the third vertical section, causing the support rod 26 to separate from the limiting ring 23 again.

[0073] At this time, the third spring 24 is released elastically and pushes the guide column 22 to move through the limiting ring 23. This causes the movable sleeve 18 to slide along the axial direction of the fixed sleeve 17 through the rotating plate 19, so that the limiting block 1801 slides along the spiral groove 1701. Under the action of the limiting block 1801 and the spiral groove 1701, the movable sleeve 18 drives the rotating plate 19 to move around the fixed sleeve 17, thereby adjusting the position of the sealing ring 20. When the limiting block 1801 moves to the end of the stroke on the other side of the spiral groove 1701, the rotating plate 19 reaches the maximum rotation angle, and the limiting ring 23 just moves to the position above the support rod 26. At this time, the discharge groove 2001 separates from the first conduit 7 and moves to the position of connecting with the second conduit 8. In this way, the conduction states of the first conduit 7 and the second conduit 8 are interchanged, and the water in the water supply pipe 1 will be pumped to the upper delivery chamber through the second conduit 8.

[0074] In this state, since the pumping rate of the check valve under normal pressure is less than the discharge rate of the through channel 901, when the second conduit 8 delivers water to the upper delivery chamber, as the water pressure in the upper delivery chamber gradually increases, the pressure in the upper delivery chamber will exceed that in the lower delivery chamber, causing the water in the upper delivery chamber to be delivered to the lower delivery chamber through the check valve at a greater pressure. Under the action of water pressure, the piston disc 9 will also be pushed to move toward the initial position. The piston disc 9 will control the movable plate 13 to reset through the upper push rod 12, and control the angle between the nozzle 11 and the water supply pipe 1 to decrease through the connecting rod 15, so that the spraying range of the nozzle 11 is in a state of continuous change.

[0075] The piston disc 9 will also drive the support plate 16 to move via the push rod 29. Since the elastic potential energy of the third spring 24 is greater than that of the second spring 21 in this state, the third spring 24 controls the position of the limiting ring 23 to remain unchanged and gradually releases the elastic potential energy. The support plate 16 will also drive the limiting plate 28 to move, so that the limiting post 2601 moves into the second inclined section. Under the action of the fourth spring 27, the support rod 26 is controlled to fit against the side of the limiting ring 23 away from the partition 6, thereby locking the position of the limiting ring 23 again and ensuring that the angle of the rotating plate 19 will not change during the piston disc 9 reset process.

[0076] When the piston disc 9 is reset, the elastic potential energy of the second spring 21 is greater than that of the third spring 24. The limiting post 2601 moves to the position where the first vertical section and the first inclined section of the limiting plate 28 are connected, so that the support rod 26 is separated from the limiting ring 23 again. At this time, the second spring 21 is released elastically and pushes the movable sleeve 18 and the rotating plate 19 to move. Under the action of the limiting block 1801 and the spiral groove 1701, the rotation angle of the rotating plate 19 is reset, so that the discharge groove 2001 is connected to the first conduit 7 again through the sealing ring 20, and the second conduit 8 is blocked.

[0077] By repeating the above steps, the spraying range of the sprinkler head 11 is continuously adjusted. During one cycle of the oscillation motion of the sprinkler head 11, the spraying water pressure of the sprinkler head 11 is controlled to fluctuate from low to high, so as to achieve the periodic alternation of the irrigation range and the irrigation intensity. This dynamic irrigation mode simulates the fluctuation characteristics of natural rainfall, so that the irrigation water can act on the crops with different kinetic energy and coverage range, which not only ensures uniform leaf surface wetting, but also promotes the efficiency of water penetration into the root system.

[0078] During the stage where the sway angle of the sprinkler head 11 increases and the irrigation range expands, the water supply pressure is relatively low at this time, forming a gentle atomized spray, which effectively expands the wet perimeter and reduces the water supply to the overlapping area with other sprinkler irrigation devices, avoiding problems such as soil erosion caused by excessive water spray in the overlapping area. When the sway angle of the sprinkler head 11 decreases and the irrigation range narrows, it is in a high-pressure water supply state, forming a concentrated water jet, which enhances the water penetration. This periodic pressure fluctuation and angle change enables both wide-area coverage and local deep irrigation to be achieved throughout the entire operation cycle of sprinkler irrigation.

[0079] A floating, alternating water-saving irrigation method includes the following steps:

[0080] Step 1: The water supply pipe 1, water inlet pipe 2, and drain pipe 3 are interconnected through the first sealing plate 4 and the second sealing plate 5, and the micro-irrigation action is performed through the drain pipe 3;

[0081] Step 2: The lower pipe 3 is blocked by the second sealing disc 5, and the first conduit 7 is connected to the lower delivery chamber under the action of the conduction control mechanism, while the second conduit 8 is in a blocked state.

[0082] Step 3: Water in the water supply pipe 1 enters the lower delivery chamber through the first conduit 7 and pushes the piston disc 9, thereby performing a large-scale sprinkler irrigation action through the sprinkler irrigation mechanism;

[0083] Step 4: When the piston disc 9 moves to the end of its stroke, the switching mechanism is triggered to control the movement of the conduction control mechanism, so that the first conduit 7 is blocked and the second conduit 8 is connected to the lower delivery chamber.

[0084] Step 5: Water in the water supply pipe 1 enters the lower delivery chamber through the second conduit 8 and drives the piston disc 9 to reset, thereby performing the sprinkler irrigation action in a pressure fluctuation state through the sprinkler irrigation mechanism.

[0085] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0086] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A floating, alternating water-saving irrigation device, comprising: Water supply pipe, as well as inlet pipe and drain pipe connected to the side wall of the water supply pipe, with baffles installed inside the water supply pipe; Its characteristic is that it further includes: A piston disc is slidably and sealed inside the water supply pipe, and the piston disc divides the pipeline in the water supply pipe located above the partition into an upper delivery chamber and a lower delivery chamber. The first conduit and the second conduit are disposed on the side wall of the water supply pipe and are respectively connected to the lower delivery chamber and the upper delivery chamber; A sprinkler irrigation mechanism is installed inside the water supply pipe and connected to the piston disc; A flow control mechanism is installed inside the water supply pipe and connected to the piston disc. The flow control mechanism is equipped with a trigger switching mechanism, which can adjust the flow state of the first conduit and the second conduit through the flow control mechanism.

2. The floating, alternating water-saving irrigation device according to claim 1, characterized in that, The sprinkler mechanism includes a through groove and a through hole formed on the piston disc. A one-way valve is installed in the through hole. A telescopic tube is provided at the end of the piston disc away from the partition plate, which is in communication with the through groove. Multiple nozzles are provided on the telescopic tube, which pass through the water supply pipe and are distributed equidistantly in a circle.

3. The floating, alternating water-saving irrigation device according to claim 2, characterized in that, The sprinkler mechanism also includes an upper push rod disposed on the piston disc and passing through the water supply pipe. The upper push rod has a movable plate at its end, and a connecting rod hinged to the nozzle is connected to the movable plate. A first spring is sleeved on the upper push rod, and the two ends of the first spring abut against the piston disc and the water supply pipe, respectively.

4. The floating, alternating water-saving irrigation device according to claim 1, characterized in that, The conduction control mechanism includes a fixed sleeve disposed on the partition plate, the outer circumferential wall of the fixed sleeve having a spiral groove, a movable sleeve sliding axially on the fixed sleeve, and a limiting block disposed on the inner wall of the movable sleeve that slides into the spiral groove.

5. A floating, alternating water-saving irrigation device according to claim 4, characterized in that, The movable sleeve is provided with a rotating plate, and the end of the rotating plate is provided with a sealing ring that seals and fits with the water supply pipe. The sealing ring has a discharge groove that communicates and cooperates with the first conduit and the second conduit. The fixed sleeve is provided with a second spring, and the two ends of the second spring abut against the partition and the rotating plate, respectively.

6. A floating, alternating water-saving irrigation device according to claim 5, characterized in that, The trigger switching mechanism includes a lower push rod disposed on the side wall of the piston disc and passing through the partition plate. A support plate is rotatably mounted on the end of the lower push rod. A guide post fixedly connected to the rotating plate is slidably mounted on the support plate. A limit ring is provided on the guide post. A third spring is sleeved on the guide post and abuts against the limit ring and the support plate. It also includes a limiting component and a guiding component disposed on the fixed sleeve and connected to the limiting ring.

7. A floating, alternating water-saving irrigation device according to claim 6, characterized in that, The limiting component includes a rotating ring rotatably mounted on the fixed sleeve, and symmetrically arranged support sleeves on the rotating ring. A support rod that slides axially inside the support sleeve and abuts against the limiting ring is also present.

8. A floating, alternating water-saving irrigation device according to claim 7, characterized in that, The guiding component includes a groove formed on the outer circumference of the support sleeve, a limiting post provided on the support rod that slides into the groove, a fourth spring sleeved on the support sleeve and the support rod, the two ends of the fourth spring abutting against the rotating ring and the limiting post respectively, and a limiting plate provided on the support plate that abuts against the limiting post.

9. A floating, alternating water-saving irrigation device according to claim 1, characterized in that, The water supply pipe is equipped with a sliding seal with a first sealing disc and a second sealing disc, and the first sealing disc and the second sealing disc are fixedly connected.

10. A floating, alternating-switching water-saving irrigation method, employing the floating, alternating-switching water-saving irrigation device as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: The water supply pipe, inlet pipe, and outlet pipe are interconnected through the first and second sealing discs, and micro-irrigation is performed through the outlet pipe; Step 2: The lower pipe is blocked by the second sealing disc, and the first conduit is connected to the lower delivery chamber under the action of the conduction control mechanism, while the second conduit is blocked. Step 3: Water in the water supply pipe enters the lower delivery chamber through the first conduit and pushes the piston disc, thereby performing a large-scale sprinkler irrigation action through the sprinkler irrigation mechanism; Step 4: When the piston disc moves to the end of its stroke, the switching mechanism is triggered to control the movement of the conduction control mechanism, so that the first conduit is blocked and the second conduit is connected to the lower delivery chamber; Step 5: Water in the water supply pipe enters the lower delivery chamber through the second conduit and drives the piston disc to reset, thereby performing sprinkler irrigation in a pressure fluctuation state through the sprinkler irrigation mechanism.

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