Salty and fresh water mixing irrigation device and method

Abstract

The invention discloses a salt and fresh water mixing irrigation device and method, and belongs to the technical field of agricultural instruments.The salt and fresh water mixing irrigation device comprises a pedestal, a mounting seat is fixedly connected to the upper surface of the pedestal, a connecting pump is fixedly connected to the mounting seat, and an input port and an output port of the connecting pump are connected with a middle pipe and a drainage pipe correspondingly. A swing rod, a first floating plate, teeth, a first gear and a control valve are adopted, when the fresh water level is high and the salt water level is low, the device can automatically reduce the inflow amount of fresh water and increase the mixing proportion of salt water, and vice versa, and the automatic adjusting mechanism ensures that under the condition that the water source condition fluctuates, the salt water can be continuously mixed. The device can automatically adjust the proportion of fresh water and saline water, the appropriate salinity concentration of irrigation water is kept, and no electric drive or manual intervention is needed. The system has the remarkable advantages that the system has the characteristics of automation and passive adjustment, so that the intelligence and efficiency of the irrigation system are improved, and the operation cost and the maintenance requirement are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a salt-fresh water mixing irrigation device and method. Background Art

[0002] Freshwater and saltwater irrigation is an effective way to utilize water resources, especially in areas with high groundwater mineralization and a shortage of freshwater resources. By mixing saltwater and freshwater, the salt content of irrigation water can be reduced, making it more suitable for crop growth, while increasing the total amount of irrigation water and making full use of saltwater resources.

[0003] The disadvantages of existing technologies are that saltwater resources in some areas are unevenly distributed, and due to the influence of geological, climatic and other conditions, there are obvious differences in the water levels and reserves of saltwater and freshwater. The traditional saltwater and freshwater mixed irrigation method has problems such as uneven mixing and difficult to control the ratio, resulting in unsatisfactory irrigation effects, which brings greater disadvantages to saltwater and freshwater mixed irrigation.

[0004] Based on this, the present invention designs a salt-fresh water mixing irrigation device and method to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of uneven mixing and difficult to control ratio, which leads to unsatisfactory irrigation effect, and to propose a salt-fresh water mixing irrigation device and method.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A salt-fresh water mixing irrigation device comprises a cushion seat, the upper surface of the cushion seat is fixedly connected to a mounting seat, a connecting pump is fixedly connected to the mounting seat, the input port and the output port of the connecting pump are respectively connected to an intermediate pipe and a drainage pipe, the other end of the intermediate pipe is connected to a transfer box fixedly connected to the cushion seat, two supports are fixedly connected to the cushion seat, a temporary storage box is fixedly connected to the support, the side of the temporary storage box is connected to an injection pipe, a floating adjustment mechanism is penetrated and connected to the temporary storage box, and a swing connection mechanism provided on the temporary storage box is slidably connected to the outside of the floating adjustment mechanism. A sliding adjustment mechanism is slidably connected in the swing connection mechanism, a sliding groove is provided on the side of the temporary storage box, and the sliding adjustment mechanism is slidably connected in the sliding groove. A connecting pipe is connected to the side of the temporary storage box close to the transfer box, and the other end of the connecting pipe is connected to an extension pipe, and the end of the extension pipe is connected to a water outlet head arranged under the sliding adjustment mechanism. A control valve is provided outside the connecting pipe, and the control valve is arranged in the sliding adjustment mechanism. A sliding contact mechanism is provided in the transfer box, and a movable mixing mechanism connected to the transfer box is provided on the side of the sliding contact mechanism.

[0008] As a further description of the above technical solution:

[0009] The floating adjustment mechanism includes a first moving rod, two guide sleeves are slidably connected to the outside of the first moving rod, the guide sleeves are connected to the temporary storage box, the bottom end of the first moving rod is fixedly connected to a first floating plate, and the first moving rod is slidably connected in the swing connection mechanism.

[0010] As a further description of the above technical solution:

[0011] The swing connection mechanism includes a swing rod, a first connection hole is opened outside the swing rod, the first moving rod is slidably connected in the first connection hole, a second connection hole is opened outside the swing rod, the sliding adjustment mechanism is slidably connected in the second connection hole, a pin is provided on the side of the swing rod, a side plate is hinged outside the pin, and the side plate is fixedly connected to the temporary storage box.

[0012] As a further description of the above technical solution:

[0013] The sliding adjustment mechanism includes a second moving rod slidably connected to a second connecting hole, an intermediate rod fixedly connected to the second moving rod, a sliding block fixedly connected to one end of the intermediate rod close to the temporary storage box, the sliding block is slidably connected in a sliding groove, a control rod fixedly connected to the side of the intermediate rod, and the control rod is fixedly connected to the water outlet head.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the second moving rod is fixedly connected with a moving frame, the moving frame is provided with teeth, the teeth are meshed with a first gear outside, the first gear is arranged outside the control valve, and the second moving rod is set to be cylindrical.

[0016] As a further description of the above technical solution:

[0017] The sliding contact mechanism includes a linear bearing, which is slidably connected to a vertical rod. The top end of the vertical rod is fixedly connected to a circular plate, the bottom end of the vertical rod is fixedly connected to a second floating plate, the linear bearing is fixedly connected to the outside of the movable mixing mechanism, and the top end of the vertical rod is fixedly connected to a circular plate.

[0018] As a further description of the above technical solution:

[0019] The movable mixing mechanism comprises a cross bar fixedly connected to the outside of the linear bearing, a connecting sleeve is slidably connected to the outside of the cross bar, the connecting sleeve is fixedly connected to the transfer box, a baffle is fixedly connected to the end of the cross bar, and a tooth groove is opened outside the cross bar.

[0020] As a further description of the above technical solution:

[0021] A second gear is meshed in the tooth groove, a rotating shaft is connected through the second gear, a supporting bearing is provided on the rotating shaft outer sleeve, the supporting bearing is arranged in the transfer box, an agitating plate is fixedly connected to the outside of the rotating shaft, and the agitating plate is located at the lower side of the second floating plate.

[0022] As a further description of the above technical solution:

[0023] The cross bar is configured as a rectangle, the cross bar is located at the upper side of the transfer box, and the water outlet is located in the transfer box.

[0024] A method for using a salt-fresh water mixing irrigation device, the method comprising the following steps:

[0025] When salty and fresh water irrigation is required, due to the difference in water level and water storage capacity between salty water and fresh water, there is a difference in the water level of salty water and fresh water in the two temporary storage boxes. At this time, when the liquid level in the temporary storage box changes, the buoyancy of the first floating plate will control the first floating plate and the first moving rod to move in the vertical direction. When the liquid level in the temporary storage box rises, the first floating plate moves up to control the rotation of the swing rod through the first moving rod;

[0026] The swing rod uses the second connecting hole to squeeze the second moving rod, the moving frame and the teeth to move downward. When the teeth move downward, the first gear and the control valve are controlled to reduce the opening degree. At this time, the amount of water discharged from the temporary storage tank through the connecting pipe, the extension pipe and the water outlet head is reduced. When the liquid level in the temporary storage tank drops, the amount of water discharged from the water outlet head increases, so that the ratio of salt water and fresh water flowing out of the two temporary storage tanks can be passively adjusted to make the ratio of the two appropriate without the need for intelligent and manual control;

[0027] When water is injected into the transfer box through the water outlet, the impact of the water flow makes the mixing of salt water and fresh water more complete and uniform, and the impact of the water flow causes the water in the transfer box to form waves. The buoyancy of the water in the transfer box acts on the second float, and the wave impacts the second float to move. The horizontal movement of the second float controls the movement of the cross bar and the tooth groove, and the tooth groove controls the rotation of the second gear, the rotating shaft and the stirring plate. The stirring plate stirs and mixes the salt water and fresh water in the transfer box. The impact of the water flow flowing down from the water outlet cooperates with the stirring action to fully mix the salt water and fresh water. The pump is connected to suck the water in the transfer box through the drain pipe for irrigation.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. In the present invention, a swing rod, a first floating plate, teeth, a first gear and a control valve are used. The innovative design of the swing rod, the first floating plate, the teeth, the first gear and the control valve is used to realize intelligent response to the liquid level. The first floating plate can adaptively move up and down according to the change of the liquid level in the temporary storage box, so as to accurately sense the water level and storage changes of the salt water and fresh water sources. The device controls the rotation of the control valve through the displacement of the first floating plate, and then adjusts its opening and closing degree to realize accurate control of the fresh water and salt water flow rates. When the fresh water level is high and the salt water level is low, the device can automatically reduce the inflow of fresh water and increase the mixing ratio of salt water, and vice versa. This automatic adjustment mechanism ensures that when the water source conditions fluctuate, the device can automatically adjust the ratio of fresh water and salt water to maintain the appropriate salt concentration of irrigation water without any electric drive or manual intervention. The significant advantage lies in its automatic and passive adjustment characteristics, which not only improves the intelligence and efficiency of the irrigation system, but also reduces the operating cost and maintenance requirements.

[0030] 2. In the present invention, the designed water outlet head, second moving rod and control rod mechanism realize the precise control of water outlet height. The control rod is synchronized with the vertical movement of the first floating plate, thereby guiding the water outlet head to change at multiple height levels, so that the water flow can fall into the transfer box along different height trajectories; the design cleverly utilizes the impact force of salt water and fresh water in the falling process, which not only effectively promotes the full mixing of water flow in the transfer box, but also the impact effect can stimulate a large number of bubbles, further enhancing the stirring effect of the water body. This physical mixing method ensures that salt water and fresh water reach a more uniform mixing state in the transfer box, and improves the uniformity and applicability of irrigation water; thanks to this innovative design, the device not only optimizes the utilization efficiency of water resources, but also significantly improves the irrigation water quality, providing a more efficient and reliable salt and fresh water mixing effect for agricultural production.

[0031] 3. In the present invention, an innovative combination of a second float, a cross bar, a tooth groove, a second gear and a stirring plate is introduced; the second float is designed to always float on the liquid surface of the transfer box, and can respond in real time to the water surface fluctuations caused by the impact of water flowing down from the water outlet, so as to slide flexibly in the horizontal direction; this dynamic response mechanism accurately controls the rotation of the second gear and the stirring plate through the tooth groove, so that the stirring plate can effectively stir the water in the transfer box, and the continuous rotation of the stirring plate promotes the deep mixing of salt water and fresh water, significantly improves the mixing effect, and ensures the uniformity and high quality of irrigation water; thanks to this design, the device not only enhances the mixing uniformity of the water body, but also improves the overall performance of the irrigation system, and realizes more ideal water resource management. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1A schematic diagram of the three-dimensional structure of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0033] Figure 2 A schematic side view of a three-dimensional structure of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0034] Figure 3 A schematic diagram of the three-dimensional structure of a temporary storage box of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0035] Figure 4 A schematic diagram of a three-dimensional cross-sectional structure of a temporary storage box of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0036] Figure 5 This is a schematic diagram of the three-dimensional structure of a water outlet of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0037] Figure 6 A schematic diagram of the three-dimensional structure of a floating adjustment mechanism of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0038] Figure 7 A schematic diagram of the three-dimensional structure of a sliding adjustment mechanism of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0039] Figure 8 A schematic diagram of the three-dimensional structure of a transfer box of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0040] Fig. 9 A schematic diagram of a three-dimensional cross-sectional structure of a transfer box of a salt-fresh water mixing irrigation device and method proposed by the present invention;

[0041] Fig.10 The present invention provides a schematic diagram of the three-dimensional structure of a sliding contact mechanism of a salt-fresh water mixing irrigation device and method.

[0042] Legend:

[0043] 1. Seat; 2. Mounting seat; 3. Connecting pump; 4. Intermediate pipe; 5. Drain pipe; 6. Transfer box; 7. Support; 8. Temporary storage box; 9. Injection pipe; 10. Floating adjustment mechanism; 101. First moving rod; 102. First floating plate; 103. Guide sleeve; 11. Swinging connection mechanism; 111. Swinging rod; 112. First connecting hole; 113. Second connecting hole; 114. Pin shaft; 115. Side plate; 12. Sliding adjustment mechanism; 121. Second moving rod; 122. Intermediate rod; 123. Sliding block; 12 4. Control rod; 125. Moving frame; 126. Tooth; 127. First gear; 13. Sliding groove; 14. Connecting pipe; 15. Extension pipe; 16. Water outlet; 17. Control valve; 18. Sliding contact mechanism; 181. Linear bearing; 182. Vertical rod; 183. Circular plate; 184. Second floating plate; 19. Movable mixing mechanism; 191. Cross rod; 192. Connecting sleeve; 193. Baffle; 194. Tooth groove; 195. Second gear; 196. Rotating shaft; 197. Support bearing; 198. Agitating plate. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Please see attached Figure 1 -Attached Fig.10The present invention provides a technical solution: a salt-fresh water mixing irrigation device, comprising a cushion seat 1, a mounting seat 2 is fixedly connected to the upper surface of the cushion seat 1, a connecting pump 3 is fixedly connected to the mounting seat 2, an input port and an output port of the connecting pump 3 are respectively connected to an intermediate pipe 4 and a drainage pipe 5, the other end of the intermediate pipe 4 is connected to a transfer box 6 fixedly connected to the cushion seat 1, two supports 7 are fixedly connected to the cushion seat 1, a temporary storage box 8 is fixedly connected to the support 7, an injection pipe 9 is connected to the side of the temporary storage box 8, a floating adjustment mechanism 10 is penetrated and connected to the temporary storage box 8, and a swing connection mechanism 1 provided on the temporary storage box 8 is slidably connected to the outside of the floating adjustment mechanism 10 1, a sliding adjustment mechanism 12 is slidably connected in the swing connection mechanism 11, a sliding groove 13 is provided on the side of the temporary storage box 8, the sliding adjustment mechanism 12 is slidably connected in the sliding groove 13, a connecting pipe 14 is connected to the side of the temporary storage box 8 close to the transfer box 6, the other end of the connecting pipe 14 is connected to an extension pipe 15, the end of the extension pipe 15 is connected to a water outlet 16 arranged under the sliding adjustment mechanism 12, a control valve 17 is provided outside the connecting pipe 14, the control valve 17 is arranged in the sliding adjustment mechanism 12, a sliding contact mechanism 18 is provided in the transfer box 6, and a movable mixing mechanism 19 connected to the transfer box 6 is provided on the side of the sliding contact mechanism 18.

[0046] Through the control valve 17, the connecting pipe 14 and the extension pipe 15, the water in the temporary storage box 8 can be injected into the transfer box 6, and the salt water and fresh water can be mixed in the transfer box 6. The pump 3 is connected to suck the mixed water in the transfer box 6 for irrigation;

[0047] Specifically, Figure 4-6 As shown, the floating adjustment mechanism 10 includes a first moving rod 101, and two guide sleeves 103 are slidably connected to the outside of the first moving rod 101. The guide sleeves 103 are connected to the temporary storage box 8 through, and the bottom end of the first moving rod 101 is fixedly connected to a first floating plate 102. The first moving rod 101 is slidably connected in the swing connection mechanism 11.

[0048] The first floating plate 102 can be adjusted in height by utilizing the change in the liquid level in the temporary storage box 8, and the buoyancy of water is utilized to control the first floating plate 102 and the first moving rod 101 to move in the vertical direction. The guide sleeve 103 guides and limits the moving rod, so that the first moving rod 101 squeezes the swing rod 111 when the moving rod is stabilized in the vertical direction.

[0049] Specifically, Figure 5-7As shown, the swing connection mechanism 11 includes a swing rod 111, a first connection hole 112 is opened outside the swing rod 111, the first moving rod 101 is slidably connected in the first connection hole 112, a second connection hole 113 is opened outside the swing rod 111, the sliding adjustment mechanism 12 is slidably connected in the second connection hole 113, a pin shaft 114 is provided on the side of the swing rod 111, a side plate 115 is hinged outside the pin shaft 114, and the side plate 115 is fixedly connected to the temporary storage box 8.

[0050] The swing rod 111 is supported by a pin shaft 114, and the pin shaft 114 is close to the sliding adjustment mechanism 12, so that the second moving rod 121 can be controlled to move slightly only when the first moving rod 101 moves greatly. The swing rod 111 can use the first moving rod 101 to adjust the height change of the second moving rod 121, and the first connecting hole 112 and the second connecting hole 113 can maintain the contact state between the first connecting rod and the second connecting rod when the swing rod 111 rotates;

[0051] Specifically, Figure 6-7 As shown, the sliding adjustment mechanism 12 includes a second moving rod 121 slidably connected in the second connecting hole 113, an intermediate rod 122 is fixedly connected in the second moving rod 121, a sliding block 123 is fixedly connected at one end of the intermediate rod 122 close to the temporary storage box 8, the sliding block 123 is slidably connected in the sliding groove 13, a control rod 124 is fixedly connected to the side of the intermediate rod 122, and the control rod 124 is fixedly connected to the water outlet 16.

[0052] The bottom end of the second moving rod 121 is fixedly connected with a moving frame 125. The moving frame 125 is provided with teeth 126. The teeth 126 are meshed with a first gear 127. The first gear 127 is provided outside the control valve 17. The second moving rod 121 is set to be cylindrical.

[0053] The sliding groove 13 guides the vertical movement of the sliding block 123 and the movable frame 125, so that the movable frame 125 and the teeth 126 can stably contact with the first gear 127. The movement of the second movable rod 121 and the movable frame 125 can control the rotation of the first gear 127 and the control valve 17 through the teeth 126, adjust the opening and closing degree of the control valve 17, and use the control rod 124 to adjust the height change of the water outlet head 16.

[0054] Specifically, Figure 8-10 As shown, the sliding contact mechanism 18 includes a linear bearing 181, which is slidingly connected to a vertical rod 182. The top of the vertical rod 182 is fixedly connected to a circular plate 183, and the bottom of the vertical rod 182 is fixedly connected to a second floating plate 184. The linear bearing 181 is fixedly connected to the outside of the movable mixing mechanism 19, and the top of the vertical rod 182 is fixedly connected to a circular plate 183.

[0055] The linear bearing 181 is used to guide the vertical movement of the vertical rod 182 and the second floating plate 184, so that the second floating plate 184 can be more stable in the process of changing the height according to the floating of the liquid level in the transfer box 6. The second floating plate 184 changes with the height of the liquid level and can be pushed by the waves at the liquid level to move horizontally.

[0056] Specifically, Fig.10 As shown, the movable mixing mechanism 19 includes a cross bar 191 fixedly connected to the outside of the linear bearing 181, a connecting sleeve 192 is slidably connected to the outside of the cross bar 191, the connecting sleeve 192 is fixedly connected to the transfer box 6, a baffle 193 is fixedly connected to the end of the cross bar 191, and a tooth groove 194 is opened outside the cross bar 191.

[0057] A second gear 195 is meshed in the tooth groove 194 , and a rotating shaft 196 is connected to the second gear 195 . A supporting bearing 197 is provided on the outer sleeve of the rotating shaft 196 . The supporting bearing 197 is arranged in the transfer box 6 . An agitating plate 198 is fixedly connected to the outside of the rotating shaft 196 , and the agitating plate 198 is located at the lower side of the second floating plate 184 .

[0058] The cross bar 191 is set to be rectangular, the cross bar 191 is located at the upper side of the transfer box 6, and the water outlet head 16 is located in the transfer box 6.

[0059] The rectangular cross bar 191 is restricted by a connecting sleeve 192 to prevent the cross bar 191 from rotating. The cross bar 191 can be controlled to slide by the horizontal movement of the second float 184. When water is injected into the transfer box 6 through the water outlet 16, the impact of the water flow makes the mixing of salt water and fresh water more complete and uniform, and the impact of the water flow causes the water in the transfer box 6 to form waves. The buoyancy of the water in the transfer box 6 acts on the second float 184, and the waves impact the second float 184 to move. The horizontal movement of the second float 184 controls the movement of the cross bar 191 and the tooth groove 194. The tooth groove 194 controls the rotation of the second gear 195, the rotating shaft 196 and the stirring plate 198. The stirring plate 198 stirs and mixes the salt water and fresh water in the transfer box 6.

[0060] A method for using a salt-fresh water mixing irrigation device, the method comprising the following steps:

[0061] When salt water and fresh water irrigation is required, due to the difference in water level and water storage capacity between salt water and fresh water, there is a difference in the water level of salt water and fresh water in the two temporary storage boxes 8. At this time, when the liquid level in the temporary storage box 8 changes, the buoyancy of the first floating plate 102 will control the first floating plate 102 and the first moving rod 101 to move in the vertical direction. When the liquid level in the temporary storage box 8 rises, the first floating plate 102 moves up and controls the swing rod 111 to rotate through the first moving rod 101;

[0062] The swing rod 111 uses the second connecting hole 113 to squeeze the second moving rod 121, the moving frame 125 and the teeth 126 to move downward. When the teeth 126 move downward, the first gear 127 and the control valve 17 are controlled to reduce the opening degree. At this time, the amount of water discharged from the temporary storage box 8 through the connecting pipe 14, the extension pipe 15 and the water outlet head 16 is reduced. When the liquid level in the temporary storage box 8 drops, the amount of water discharged from the water outlet head 16 increases, so that the ratio of salt water and fresh water flowing out of the two temporary storage boxes 8 can be passively adjusted to make the ratio of the two appropriate without intelligent and manual control;

[0063] When water is injected into the transfer box 6 through the water outlet 16, the impact of the water flow makes the mixing of salt water and fresh water more complete and uniform, and the impact of the water flow causes the water in the transfer box 6 to form waves. The buoyancy of the water in the transfer box 6 acts on the second float 184, and the wave impacts the second float 184 to move. The horizontal movement of the second float 184 controls the movement of the cross bar 191 and the tooth groove 194. The tooth groove 194 controls the rotation of the second gear 195, the rotating shaft 196 and the stirring plate 198. The stirring plate 198 stirs and mixes the salt water and fresh water in the transfer box 6. The impact of the water flow flowing down from the water outlet 16 cooperates with the stirring action to fully mix the salt water and fresh water. The pump 3 is connected to suck the water in the transfer box 6 through the drain pipe 5 for irrigation.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A salt-fresh water mixing irrigation device, comprising a base (1), characterized in that: The upper surface of the cushion seat (1) is fixedly connected to a mounting seat (2), a connecting pump (3) is fixedly connected to the mounting seat (2), the input port and the output port of the connecting pump (3) are respectively connected to an intermediate pipe (4) and a drainage pipe (5), the other end of the intermediate pipe (4) is connected to a transfer box (6) fixedly connected to the cushion seat (1), two supports (7) are fixedly connected to the cushion seat (1), a temporary storage box (8) is fixedly connected to the supports (7), a side of the temporary storage box (8) is connected to an injection pipe (9), a floating adjustment mechanism (10) is connected through the temporary storage box (8), the floating adjustment mechanism (10) is externally slidably connected to a swing connection mechanism (11) provided on the temporary storage box (8), and the swing connection mechanism (11) is internally slidably connected to A sliding adjustment mechanism (12) is provided, a sliding groove (13) is provided on the side of the temporary storage box (8), the sliding adjustment mechanism (12) is slidably connected in the sliding groove (13), a connecting pipe (14) is connected to the side of the temporary storage box (8) close to the transfer box (6), the other end of the connecting pipe (14) is connected to an extension pipe (15), the end of the extension pipe (15) is connected to a water outlet (16) arranged under the sliding adjustment mechanism (12), a control valve (17) is provided outside the connecting pipe (14), the control valve (17) is arranged in the sliding adjustment mechanism (12), a sliding contact mechanism (18) is provided in the transfer box (6), and a movable mixing mechanism (19) connected to the transfer box (6) is provided on the side of the sliding contact mechanism (18).

2. A salt-fresh water mixing irrigation device according to claim 1, characterized in that: The floating adjustment mechanism (10) comprises a first moving rod (101), two guide sleeves (103) are slidably connected to the outside of the first moving rod (101), the guide sleeves (103) are connected through the temporary storage box (8), the bottom end of the first moving rod (101) is fixedly connected to a first floating plate (102), and the first moving rod (101) is slidably connected in the swing connection mechanism (11).

3. A salt-fresh water mixing irrigation device according to claim 2, characterized in that: The swing connection mechanism (11) comprises a swing rod (111), a first connection hole (112) is formed outside the swing rod (111), the first moving rod (101) is slidably connected in the first connection hole (112), a second connection hole (113) is formed outside the swing rod (111), the sliding adjustment mechanism (12) is slidably connected in the second connection hole (113), a pin shaft (114) is formed on the side surface of the swing rod (111), a side plate (115) is hinged outside the pin shaft (114), and the side plate (115) is fixedly connected to the temporary storage box (8).

4. A salt-fresh water mixing irrigation device according to claim 3, characterized in that: The sliding adjustment mechanism (12) comprises a second moving rod (121) slidably connected in the second connecting hole (113); an intermediate rod (122) is fixedly connected in the second moving rod (121); a sliding block (123) is fixedly connected at one end of the intermediate rod (122) close to the temporary storage box (8); the sliding block (123) is slidably connected in the sliding groove (13); a control rod (124) is fixedly connected to the side of the intermediate rod (122); and the control rod (124) is fixedly connected to the water outlet head (16).

5. A salt-fresh water mixing irrigation device according to claim 4, characterized in that: The bottom end of the second moving rod (121) is fixedly connected to a moving frame (125), and teeth (126) are arranged inside the moving frame (125). A first gear (127) is meshed outside the teeth (126), and the first gear (127) is arranged outside the control valve (17). The second moving rod (121) is set to be cylindrical.

6. The salt-fresh water mixing irrigation device according to claim 1, characterized in that: The sliding contact mechanism (18) comprises a linear bearing (181), the linear bearing (181) is slidably connected to a vertical rod (182), the top end of the vertical rod (182) is fixedly connected to a circular plate (183), the bottom end of the vertical rod (182) is fixedly connected to a second floating plate (184), the linear bearing (181) is fixedly connected to the outside of the movable mixing mechanism (19), and the top end of the vertical rod (182) is fixedly connected to a circular plate (183).

7. A salt-fresh water mixing irrigation device according to claim 6, characterized in that: The movable mixing mechanism (19) comprises a cross bar (191) fixedly connected to the outside of the linear bearing (181); a connecting sleeve (192) is slidably connected to the outside of the cross bar (191); the connecting sleeve (192) is fixedly connected to the transfer box (6); a baffle (193) is fixedly connected to the end of the cross bar (191); and a tooth groove (194) is provided on the outside of the cross bar (191).

8. The salt-fresh water mixing irrigation device according to claim 7, characterized in that: A second gear (195) is meshed in the tooth groove (194), a rotating shaft (196) is connected through the second gear (195), a supporting bearing (197) is provided on the outer sleeve of the rotating shaft (196), the supporting bearing (197) is arranged in the transfer box (6), and a stirring plate (198) is fixedly connected to the outside of the rotating shaft (196), and the stirring plate (198) is located at the lower side of the second floating plate (184).

9. A salt-fresh water mixing irrigation device according to claim 8, characterized in that: The cross bar (191) is configured in a rectangular shape, the cross bar (191) is located on the upper side of the transfer box (6), and the water outlet head (16) is located inside the transfer box (6).

10. A method for using a salt-fresh water mixing irrigation device, according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: When salt water and fresh water irrigation is required, due to the difference in water level and water storage capacity between salt water and fresh water, there is a difference in the water level of salt water and fresh water in the two temporary storage boxes (8). At this time, when the liquid level in the temporary storage box (8) changes, the buoyancy of the first floating plate (102) controls the first floating plate (102) and the first moving rod (101) to move in the vertical direction. When the liquid level in the temporary storage box (8) rises, the first floating plate (102) moves upward to control the swing rod (111) to rotate through the first moving rod (101); The swing rod (111) uses the second connection hole (113) to squeeze the second moving rod (121), the moving frame (125) and the teeth (126) to move downward. When the teeth (126) move downward, the first gear (127) and the control valve (17) are controlled to reduce the opening degree. At this time, the amount of water discharged from the temporary storage box (8) through the connecting pipe (14), the extension pipe (15) and the water outlet head (16) is reduced. When the liquid level in the temporary storage box (8) drops, the amount of water discharged from the water outlet head (16) is increased, so that the ratio of salt water to fresh water flowing out of the two temporary storage boxes (8) can be passively adjusted to make the ratio of the two appropriate without the need for intelligent and manual control; When water is injected into the transfer box (6) through the water outlet (16), the impact of the water flow makes the salt water and the fresh water mixed more fully and evenly, and the impact of the water flow makes the water in the transfer box (6) form waves. The buoyancy of the water in the transfer box (6) acts on the second floating plate (184), and the waves impact the second floating plate (184) to move. The horizontal movement of the second floating plate (184) controls the movement of the cross bar (191) and the tooth groove (194). The tooth groove (194) controls the rotation of the second gear (195), the rotating shaft (196) and the stirring plate (198). The stirring plate (198) stirs and mixes the salt water and the fresh water in the transfer box (6). The impact of the water flow flowing down the water outlet (16) cooperates with the stirring action to fully mix the salt water and the fresh water. The pump (3) is connected to suck the water in the transfer box (6) through the drainage pipe (5) for irrigation.

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