Water collecting and draining device for saline-alkali soil

Abstract

The invention belongs to the technical field of saline-alkali soil improvement, and particularly provides a saline-alkali soil water collecting and draining device which comprises a top pressing plate, a water draining opening is formed in the center of the top pressing plate in a penetrating mode, an adsorption type drilling assembly is arranged in the center of the lower portion of the top pressing plate, and a magnetomotive circulating water collecting and draining assembly is arranged in the adsorption type drilling assembly. Water injection insertion rods are arranged on the lower portion of the top pressing plate, and the water injection insertion rods are evenly distributed on the outer side of the adsorption type drilling assembly in the circumferential direction; a nesting principle is combined with an electromagnetic principle, a magnetomotive circulating water collecting and draining assembly is arranged, saline water on adsorption cotton slivers is circularly sucked through negative pressure generated in suction cavities, the adsorption cotton slivers continuously absorb the saline water in saline-alkali soil, local water circulation is formed, and the suction cavities linearly arrayed in the vertical direction synchronously work; the technical effect of synchronous water collection and drainage in the longitudinal depth of the saline-alkali soil is achieved, water circulation in the saline-alkali soil is accelerated, and the saline-alkali soil improvement efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of saline-alkali land improvement, and specifically refers to a saline-alkali land water collection and drainage device. Background Art

[0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops and is not conducive to agricultural development. The fundamental reason for the formation of saline-alkali soil is the poor water condition, so in the early stage of improvement, the focus should be on improving the water condition of the soil. Physical restoration is one of the commonly used measures and means for the restoration and improvement of saline-alkali land. Physical restoration is to use the principle of water and salt movement, take water conservancy measures for the movement of water on the surface, soil and underground, and combine irrigation and salt washing with drainage to reduce salt. Most of the existing saline-alkali land drainage devices use the method of pre-buried drainage pipes, which requires large-scale excavation and construction of saline-alkali soil, which is costly, time-consuming and labor-intensive, and needs to rely on the natural flow of water in the saline-alkali soil for drainage, which is inefficient; in addition, it is difficult for irrigation of saline-alkali land to directly penetrate deep soil, making salt drainage inefficient. Summary of the invention

[0003] In order to solve the above-mentioned existing problems, the present invention provides a saline-alkali land drainage device, which adopts the nesting principle and combines the electromagnetic principle to set up a magnetic power circulation drainage component. The negative pressure generated in the suction chamber circulates to suck the brine on the adsorption cotton strip, and the adsorption cotton strip continuously absorbs the brine in the saline-alkali soil to form a local water circulation. The suction chambers in the linear array along the vertical direction work synchronously to achieve the technical effect of synchronous drainage of the saline-alkali soil in the longitudinal depth, accelerate the water circulation in the saline-alkali soil, and improve the efficiency of saline-alkali land improvement. The device can be used in series in multiple groups, without the need to dig pits and backfill the saline-alkali land. It is easy to operate and can drain the brine while irrigating, thereby improving the salt drainage efficiency.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is as follows: a saline-alkali land drainage device provided by the present invention comprises a top pressure plate, a drainage port is provided through the center of the top pressure plate, an adsorption-type drilling assembly is provided at the lower center of the top pressure plate, a magnetic-power circulation drainage assembly is provided inside the adsorption-type drilling assembly, the magnetic-power circulation drainage assembly is arranged on the inner side of the drainage port, a water injection rod is provided at the lower part of the top pressure plate, and the circumference of the water injection rod is evenly distributed on the outer side of the adsorption-type drilling assembly; wherein, the adsorption-type drilling assembly comprises an outer cover shell, a pointed cone seat and a pull-out type adsorption mechanism, the outer cover shell is arranged at the lower center of the top pressure plate, the outer cover shell is cylindrical, the pointed cone seat is arranged at the lower end of the outer cover shell, the pull-out type adsorption mechanism is slidably arranged on the inner side of the outer cover shell, and the magnetic-power circulation drainage assembly is arranged on the pull-out The inner side of the adsorption mechanism; the magnetic power circulation drainage assembly includes a water collecting inner shell, a pumping rod and a circulation water absorption mechanism, the water collecting inner shell is arranged on the upper part of the pointed cone seat, the interior of the water collecting inner shell is hollow, the water collecting inner shell is arranged on the inner side of the drain outlet, the circulation water absorption mechanism is rotatably arranged inside the water collecting inner shell, and the pumping rod is arranged on the inner side of the circulation water absorption mechanism; when installing, the device is placed vertically, the pointed cone seat and the lower end of the water injection rod are inserted into the soil of the saline-alkali land, the top pressure plate is pressed or a pile driver or other tools are used to act on the top pressure plate, so that the adsorption drilling assembly and the water injection rod are completely inserted into the saline-alkali land until the lower wall of the top pressure plate contacts the ground; in the saline-alkali land, a plurality of groups of the devices can be connected by a tee and a water pipe, and they are arranged in a linear array for use, without the need to dig pits and backfill the saline-alkali land, and the installation and use are convenient.

[0005] Furthermore, the circulating water absorption mechanism includes a rotating motor, a rotating cylinder, a suction chamber, a drainage chamber, a fixed electromagnetic plate and a sliding magnetic block, the rotating motor is embedded in the interior of the pointed cone seat, the rotating motor is a stepping motor, the rotating cylinder is arranged at the output end of the rotating motor, the rotating cylinder is rotatably arranged in the interior of the water collecting inner shell, the suction chamber and the drainage chamber are respectively and circumferentially evenly distributed in the interior of the rotating cylinder, the suction chamber passes through the side wall of the rotating cylinder, the suction chamber and the drainage chamber are staggered with each other, the suction chamber and the drainage chamber are connected, the circumferentially evenly distributed suction chambers and drainage chambers are respectively arranged in a linear array along the axis of the rotating cylinder, and flexible straps are provided on both side walls of the suction chamber near one end of the rotating cylinder, the flexible straps are arranged at the connection point between the suction chamber and the drainage chamber, and the end of the flexible strap facing the inner side of the drainage chamber is attached to the inner wall of the rotating cylinder, and the flexible straps are made of silicone rubber, which is easy to deform and has sealing properties.

[0006] Furthermore, the fixed electromagnetic plates are evenly distributed around the circumference of the pumping rod and embedded in the interior of the rotating cylinder. The fixed electromagnetic plates are arranged through the side of the suction chamber close to the pumping rod. The sliding magnetic block is slidably arranged inside the suction chamber. The outer side surface of the sliding magnetic block is an arc surface, and the side wall of the sliding magnetic block slides and fits with the inner wall of the suction chamber.

[0007] Furthermore, a water suction port is provided through the center of the upper end of the water collecting inner shell, a water pump is embedded in the upper part of the water collecting inner shell, the water outlet end of the water pump is connected to the water suction port, the water suction rod is connected to the suction end of the water suction pump, the lower end of the water suction rod extends to the lower end of the rotating cylinder, and an electric ring is provided on the outer side of the water suction rod for rotation, the electric ring is arranged at the upper end of the rotating cylinder, and a driving battery is arranged inside the electric ring, and the driving battery is electrically connected to fixed electromagnetic plates evenly distributed around the circumference.

[0008] Furthermore, suction holes are evenly distributed on the circumference of the side wall of the water pumping rod, and the suction holes are arranged in a linear array along the axis of the water pumping rod. In the initial state, the position of the suction holes is arranged corresponding to the suction chamber, and a water collecting groove is provided through the rotating cylinder at the lower part of the side wall of the drainage chamber near the water pumping rod. When the rotating cylinder rotates the angle of the adjacent suction chambers in the circumferential direction, the water collecting groove is connected with the suction holes; liquid passing grooves are evenly distributed on the circumference of the side wall of the water collecting inner shell, and the liquid passing grooves are evenly distributed in the circumference and arranged in a linear array along the axis of the water collecting inner shell. In the initial state, the liquid passing groove is connected with the suction chamber, and a filter layer is provided in the liquid passing groove, and the filter layer is made of fiber material, and the filter layer blocks large particles of impurities such as soil; Furthermore, the pull-out adsorption mechanism comprises a sliding ring, an adsorption frame and an adsorption cotton strip, the sliding ring is movably sleeved on the outer side of the water-collecting inner shell, a handle is symmetrically provided on the upper end of the sliding ring, the adsorption frame is evenly distributed on the circumference of the lower part of the sliding ring, the adsorption frame moves between the water-collecting inner shell and the outer cover shell, the adsorption cotton strip is installed in the adsorption frame, and the outer wall of the outer cover shell is evenly distributed on the circumference thereof, when the absorption efficiency of the adsorption cotton strip is reduced, it is only necessary to pull out the pull-out adsorption mechanism from between the water-collecting inner shell and the outer cover shell by the handle, remove the used adsorption cotton strip, and then reinstall a new adsorption cotton strip in the adsorption frame, and then press the pull-out adsorption mechanism between the water-collecting inner shell and the outer cover shell, without having to pull out the entire device from the soil, and the operation is convenient; When in use, the driving battery in the power ring energizes the fixed electromagnetic plate to generate magnetism. At this time, the magnetic poles of the fixed electromagnetic plate are the same as those of the sliding magnetic block. Due to the electromagnetic repulsion force, the sliding magnetic block is located at one end of the suction chamber close to the rotating cylinder. When working, the direction of the current flowing through the fixed electromagnetic plate is changed to make the magnetic poles of the fixed electromagnetic plate different from those of the sliding magnetic block. The fixed electromagnetic plate absorbs the sliding magnetic block, causing the sliding magnetic block to slide from the outer end of the suction chamber to the fixed electromagnetic plate, thereby generating a negative pressure adsorption effect, thereby sucking the saline on the adsorption cotton strip at the filter layer. When the sliding magnetic block and the fixed electromagnetic plate are adsorbed together, the rotating motor starts, driving the rotating cylinder as a whole to rotate around the pumping rod. The rotation angle is the angle between two adjacent suction chambers evenly distributed around the circumference. As the rotating cylinder rotates, the saline sucked into the suction chamber follows the suction chamber to rotate to the inner wall of the water collecting inner shell. The saline is in a closed space formed by the inner wall of the water collecting inner shell, the side wall of the suction chamber and the flexible strapping plate, and the drainage chamber rotates to the filter layer. At this time, the water collecting passage in the drainage chamber is The groove is connected with the suction hole, and then, the direction of the current flowing through the fixed electromagnetic plate changes, so that the magnetic pole of the fixed electromagnetic plate is different from the magnetic pole of the sliding magnetic block. Under the action of magnetic repulsion, the fixed electromagnetic plate pushes the sliding magnetic block away, and under the squeezing of the sliding magnetic block, the salt water in the suction chamber breaks through the flexible strap made of silicone rubber and flows into the adjacent drainage chamber, and the water in the drainage chamber flows into the suction hole through the water collecting groove. At the same time, the water pump is started to extract the internal salt water through the water pumping rod; when the sliding magnetic block slides and fits the inner wall of the water collecting inner shell, the rotating motor is started, and the rotating cylinder is driven to rotate as a whole again, so that the suction chamber is connected with the liquid passing groove again, and the above process is repeated, and the negative pressure cycle generated by the sliding of the sliding magnetic block is used to suck the salt water on the adsorption cotton strip, and the adsorption cotton strip continuously absorbs the salt water in the saline-alkali soil, forming a local water cycle, and the suction chambers in the linear array along the vertical direction work synchronously, so as to achieve the technical effect of synchronously collecting and draining the saline-alkali soil in the longitudinal depth, accelerate the water cycle in the saline-alkali soil, and improve the efficiency of saline-alkali land improvement.

[0009] Preferably, the water injection rod is a hollow structure, the lower end of the water injection rod is in the shape of a pointed cone, the outer wall of the water injection rod is circumferentially evenly penetrated with water injection holes, the upper wall of the top pressure plate is provided with a water filling port, the interior of the top pressure plate is provided with a water injection pump, the water outlet ends of the water injection pump are respectively connected with the water injection rods in the circumferential array, the water inlet end of the water injection pump is connected with the water filling port, and the water filling port is connected to an external fresh water tank. After the adsorption drilling assembly and the water injection rod are completely inserted into the saline-alkali soil, the water injection pump is started, the water injection pump draws external fresh water and sprays it through the water injection holes on the water injection rods evenly distributed around the circumference, so as to moisten the saline-alkali soil in the area surrounding the adsorption drilling assembly, so that the deep soil is also irrigated, and then, the salt water flowing through the saline-alkali soil is absorbed by the adsorption cotton strips with strong adsorption force through the penetration holes, and the adsorption cotton strips full of salt water fit with the water collecting inner shell.

[0010] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The saline-alkali land drainage device provided by the present invention adopts the nesting principle and combines the electromagnetic principle to set a magnetic power circulation drainage component. The saline on the adsorption cotton strip is sucked by the negative pressure cycle generated in the suction chamber, and the adsorption cotton strip continuously absorbs the saline in the saline-alkali soil to form a local water cycle. The suction chambers in the linear array along the vertical direction work synchronously to achieve the technical effect of synchronous drainage of saline-alkali soil in the longitudinal depth, accelerate the water circulation in the saline-alkali soil, and improve the efficiency of saline-alkali land improvement; 2. The pull-out adsorption mechanism adopts a nested structure. When the absorption efficiency of the adsorption cotton strip is reduced, it is only necessary to pull out the pull-out adsorption mechanism from between the water collecting inner shell and the outer cover shell by the handle, reinstall and replace the new adsorption cotton strip in the adsorption frame, and then press the pull-out adsorption mechanism between the water collecting inner shell and the outer cover shell. It is not necessary to pull the whole device out of the soil, and the operation is convenient; 3. This device can be used in series in multiple groups, without the need to dig pits and backfill in saline-alkali land. It is easy to operate and can collect and drain salt water while irrigating, thereby improving the salt discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a saline-alkali land drainage device provided by the present invention; Figure 2 It is a schematic diagram of the explosion structure of the top pressure plate, water injection rod, magnetic power circulation drainage assembly and pull-out adsorption mechanism; Figure 3 It is a structural schematic diagram of the pull-out type adsorption mechanism; Figure 4 It is a front view of the combined structure of the magnetic power circulation drainage assembly and the pointed cone seat; Figure 5 It is a schematic diagram of the combined structure of the circulating water absorption mechanism; Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 7 It is a schematic diagram of the internal structure of the rotating cylinder, the suction chamber and the drainage chamber; Figure 8 for Figure 4 Schematic diagram of the cross-sectional structure at BB in the middle; Fig. 9 for Figure 6 Schematic diagram of the local enlarged structure at point C in the middle.

[0012] Among them, 1. top pressure plate, 11. water filling port, 12. drainage port, 2. magnetic power circulation drainage assembly, 21. water collecting inner shell, 22. rotating motor, 23. circulating water absorption mechanism, 231. rotating cylinder, 232. suction chamber, 233. drainage chamber, 234. flexible strap, 235. fixed electromagnetic plate, 236. sliding magnetic block, 237. water collecting groove, 238. power ring, 24. water pumping rod, 241. suction hole, 25. water pump, 26. liquid trough, 27. filter layer, 28. water pumping port, 3. adsorption drilling assembly, 31. outer cover shell, 32. pointed cone seat, 33. pull-out adsorption mechanism, 331. sliding ring, 332. adsorption frame, 333. adsorption cotton strip, 334. handle, 34. penetration through hole, 4. water injection rod, 41. water injection through hole. DETAILED DESCRIPTION

[0013] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments. The parts of the technical features or connection relationships described in the present invention that are not described in detail are all existing technologies adopted.

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0015] like Figure 1-Figure 9 As shown, a saline-alkali land drainage device provided by the present invention comprises a top pressure plate 1, a drainage port 12 is provided through the center of the top pressure plate 1, an adsorption drilling assembly 3 is provided at the center of the lower part of the top pressure plate 1, a magnetic power circulation drainage assembly 2 is provided inside the adsorption drilling assembly 3, the magnetic power circulation drainage assembly 2 is provided on the inner side of the drainage port 12, a water injection rod 4 is provided at the lower part of the top pressure plate 1, the water injection rod 4 is evenly arranged on the outer side of the adsorption drilling assembly 3, and the water injection rod 4 is hollow. The structure is as follows: the lower end of the water injection rod 4 is in a pointed cone shape, and water injection holes 41 are evenly distributed on the circumference of the outer wall of the water injection rod 4. A water injection port 11 is provided on the upper wall of the top pressure plate 1. A water injection pump is provided inside the top pressure plate 1. The water outlet ends of the water injection pump are respectively connected to the water injection rods 4 of the circumferential array, and the water inlet end of the water injection pump is connected to the water injection port 11. The water injection port 11 is connected to an external water pipe. When the water injection pump is started, external fresh water can be sprayed out through the water injection holes 41 on the water injection rod 4, which can act on the deep soil of saline-alkali land; Among them, the adsorption drilling assembly 3 includes an outer cover shell 31, which is arranged at the lower center of the top pressure plate 1, and the outer cover shell 31 is cylindrical. A pointed cone seat 32 is provided at the lower end of the outer cover shell 31, and the outer wall of the outer cover shell 31 is evenly distributed with penetration holes 34 on the circumference, and a pull-out adsorption mechanism 33 is slidably provided on the inner side of the outer cover shell 31, and the magnetic power circulation water collection and drainage assembly 2 is arranged on the inner side of the pull-out adsorption mechanism 33; the magnetic power circulation water collection and drainage assembly 2 includes a water collecting inner shell 21, the water collecting inner shell 21 is arranged on the upper part of the pointed cone seat 32, the inside of the water collecting inner shell 21 is hollow, and the water collecting inner shell 21 is arranged on the inner side of the drain outlet 12, and a circulating water absorption mechanism 23 is provided inside the water collecting inner shell 21 for rotation, and a pumping rod 24 is provided on the inner side of the circulating water absorption mechanism 23.

[0016] The pull-out adsorption mechanism 33 includes a sliding ring 331, which is movably sleeved on the outer side of the water-collecting inner shell 21. A handle 334 is symmetrically provided on the upper end of the sliding ring 331. Adsorption frames 332 are evenly distributed on the lower circumference of the sliding ring 331. The adsorption frames 332 are movable between the water-collecting inner shell 21 and the outer cover shell 31. Adsorption cotton strips 333 are installed in the adsorption frames 332. The moisture in the saline-alkali soil is adsorbed by the adsorption cotton strips 333 through the penetration holes 34. The pull-out adsorption mechanism 33 can be taken out from between the water-collecting inner shell 21 and the outer cover shell 31 through the handle 334, which is convenient for replacing the adsorption cotton strips 333 and improving the adsorption efficiency of the moisture in the saline-alkali soil.

[0017] Liquid-passing grooves 26 are uniformly distributed on the circumference of the side wall of the water-collecting inner shell 21, and the liquid-passing grooves 26 are uniformly distributed on the circumference and arranged in a linear array along the axis of the water-collecting inner shell 21. A filter layer 27 is arranged in the liquid-passing groove 26, and the filter layer 27 is made of fiber material. The filter layer 27 is directly in contact with the adsorption cotton strip 333. A water pumping port 28 is penetrated through the center of the upper end of the water-collecting inner shell 21. A water pump 25 is embedded in the upper part of the water-collecting inner shell 21, and the water outlet end of the water pump 25 is connected to the water pumping port 28. The water pumping rod 24 is connected to the suction end of the water pump 25. Suction holes 241 are uniformly distributed on the circumference of the side wall of the water pumping rod 24, and the suction holes 241 are uniformly distributed on the circumference and arranged in a linear array along the axis of the water pumping rod 24. The circulating water absorption mechanism 23 includes a rotating motor 22 and a rotating cylinder 231. The rotating motor 22 is embedded in the conical seat 32. The rotating cylinder 231 is arranged at the output end of the rotating motor 22. The rotating cylinder 231 is rotatably arranged in the water collecting inner shell 21. The interior of the rotating cylinder 231 is respectively provided with a suction chamber 232 and a drainage chamber 233 evenly distributed around the circumference. The suction chamber 232 passes through the side wall of the rotating cylinder 231. The suction chamber 232 and the drainage chamber 233 are staggered with each other. The suction chamber 232 and the drainage chamber 233 are connected to each other. The suction chamber 232 and the drainage chamber 233 are evenly distributed around the circumference and are arranged in a linear array along the axis of the rotating cylinder 231. The two side walls of the suction chamber 232 are provided with flexible straps 234 at one end close to the rotating cylinder 231. The flexible straps 234 are arranged at the connection between the suction chamber 232 and the drainage chamber 233. One end of the flexible straps 234 facing the inner side of the drainage chamber 233 is attached to the inner wall of the rotating cylinder 231. The flexible straps 234 are made of silicone rubber. The interior of the rotating cylinder 231 is evenly embedded with fixed electromagnetic plates 235 around the circumference of the pumping rod 24. The fixed electromagnetic plates 235 penetrate the side of the suction chamber 232 close to the pumping rod 24. The interior of the suction chamber 232 is slidably provided with a sliding magnetic block 236. The outer side surface of the sliding magnetic block 236 is an arc surface, which fits the outer side wall of the rotating cylinder 231. The side wall of the sliding magnetic block 236 slides and fits with the inner side wall of the suction chamber 232. The lower end of the pumping rod 24 extends to the lower end of the rotating cylinder 231. The outer side of the pumping rod 24 is rotatably provided with an electric ring 238. The electric ring 238 is arranged at the upper end of the rotating cylinder 231. The inside of the electric ring 238 is provided with a driving battery, and the driving battery is electrically connected to the fixed electromagnetic plates 235 evenly distributed around the circumference. A water collecting groove 237 is provided at the lower part of the side wall of the drainage chamber 233 near the water pumping rod 24, passing through the rotating cylinder 231. In the initial state, the position of the suction hole 241 is set corresponding to the suction chamber 232, and the liquid groove 26 is connected with the suction chamber 232. When the rotating cylinder 231 rotates in the circumferential direction to form an angle between the adjacent suction chambers 232, the water collecting groove 237 is connected with the suction hole 241.

[0018] Working principle and workflow: When in use, the device is placed vertically, the pointed cone seat 32 and the lower end of the water injection rod 4 are inserted into the soil of the saline-alkali land, the top pressure plate 1 is pressed or a pile driver or other tool is used to act on the top pressure plate 1, so that the adsorption drilling assembly 3 and the water injection rod 4 are completely inserted into the saline-alkali land until the lower wall of the top pressure plate 1 contacts the ground, and then the water injection port 11 and the water pumping port 28 are connected to the external water pipe respectively, the water injection port 11 is connected to the external fresh water tank, and the water pumping port 28 is connected to the external salt water treatment tank; in the saline-alkali land, multiple groups of the device can be connected by using a tee and a water pipe, and arranged in a linear array for use, multiple groups of water injection ports 11 are connected, and multiple groups of water pumping ports 28 are connected, so there is no need to dig pits and backfill in the saline-alkali land, and it is convenient to use.

[0019] After the adsorption drilling assembly 3 and the water injection rod 4 are completely inserted into the saline-alkali soil, the water injection pump is started. The water injection pump draws external fresh water and sprays it out through the water injection holes 41 on the water injection rod 4 evenly distributed around the circumference, so as to wet the saline-alkali soil in the area around the adsorption drilling assembly 3, so that the deep soil is also irrigated. Subsequently, the salt water flowing through the saline-alkali soil is absorbed by the adsorption cotton strip 333 with strong adsorption force through the penetration hole 34, and the adsorption cotton strip 333 full of salt water is attached to the water collecting inner shell 21; In the initial state, the liquid-passing groove 26 is connected to the suction chamber 232, and the driving battery in the power ring 238 energizes the fixed electromagnetic plate 235 to generate magnetism. At this time, the magnetic poles of the fixed electromagnetic plate 235 are the same as the magnetic poles of the sliding magnetic block 236. Due to the electromagnetic repulsive force, the sliding magnetic block 236 is located at the end of the suction chamber 232 close to the rotating cylinder 231. When working, the direction of the current flowing through the fixed electromagnetic plate 235 is changed, so that the magnetic poles of the fixed electromagnetic plate 235 and the magnetic poles of the sliding magnetic block 236 are different. The fixed electromagnetic plate 235 absorbs the sliding magnetic block 236, so that the sliding magnetic block 236 slides from the end of the suction chamber 232 to the fixed electromagnetic plate 235, thereby sucking the salt water on the adsorption cotton strip 333 at the filter layer 27, and the filter layer 27 blocks large particles of impurities such as soil. When the sliding magnetic block 236 and the fixed electromagnetic plate 235 are adsorbed together, the rotating motor 22 is started, driving the rotating cylinder 231 to rotate around the pumping rod 24 as a whole, and the rotation angle is uniformly distributed around the circumference of two adjacent suction chambers 232. As the rotating cylinder 231 rotates, the salt water sucked into the suction chamber 232 rotates with the suction chamber 232 to the inner wall of the water collecting inner shell 21, and the salt water is in the closed space formed by the inner wall of the water collecting inner shell 21, the side wall of the suction chamber 232 and the flexible strap 234, while the drainage chamber 233 rotates to the filter layer 27. At this time, the water collecting groove 237 in the drainage chamber 233 is connected with the suction hole 241. Then, the direction of the current flowing through the fixed electromagnetic plate 235 changes, so that the fixed electromagnetic plate 235 The magnetic poles of the fixed electromagnetic plate 235 are different from those of the sliding magnetic block 236. Under the action of magnetic repulsion, the fixed electromagnetic plate 235 pushes the sliding magnetic block 236 away. Under the pressure of the sliding magnetic block 236, the saline in the suction chamber 232 breaks through the flexible strap 234 made of silicone rubber and flows into the adjacent drainage chamber 233. The water in the drainage chamber 233 flows into the suction hole 241 through the water collecting groove 237. At the same time, the water pump 25 is started to extract the internal saline through the water pumping rod 24. When the sliding magnetic block 236 slides and fits the inner wall of the water collecting inner shell 21, the rotating motor 22 is started, and the rotating cylinder 231 is driven to rotate as a whole again, so that the suction chamber 232 is connected with the liquid trough 26 again, and the above process is repeated. The negative pressure cycle generated by the sliding of the sliding magnetic block 236 is used to suck the brine on the adsorption cotton strip 333, and the adsorption cotton strip 333 continuously absorbs the brine in the saline-alkali soil to form a local water circulation. The suction chambers 232 in the linear array along the vertical direction work synchronously, achieving the technical effect of synchronously collecting and draining water from the saline-alkali soil in the vertical depth, accelerating the water circulation in the saline-alkali soil, and improving the efficiency of saline-alkali land improvement.

[0020] When the absorption efficiency of the adsorption cotton strip 333 decreases after the device has been used for a period of time, the pull-out adsorption mechanism 33 is pulled out from between the water collecting inner shell 21 and the outer cover shell 31 through the handle 334, the used adsorption cotton strip 333 is removed, and a new adsorption cotton strip 333 is reinstalled in the adsorption frame 332, and then the pull-out adsorption mechanism 33 is pressed between the water collecting inner shell 21 and the outer cover shell 31. There is no need to pull the entire device out of the soil, and the operation is convenient.

[0021] It is worth noting that, during the process of inserting the water injection rod 4 into the soil, even if part of the soil enters the water injection rod 4 through the water injection hole 41, it does not affect the water injection effect of the water injection rod 4 into the saline-alkali land. The impact of the high-pressure water flow can flush out the soil in the water injection rod 4. The use of the driving battery, stepper motor, water pump 25 and water injection pump is existing technology and will not be elaborated here.

[0022] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A saline-alkali land drainage device, comprising a top pressure plate (1), wherein a drainage port (12) is provided through the center of the top pressure plate (1), and characterized in that: An adsorption-type drilling assembly (3) is provided at the center of the lower part of the top pressure plate (1), a magnetic power circulation drainage assembly (2) is provided inside the adsorption-type drilling assembly (3), the magnetic power circulation drainage assembly (2) is arranged on the inner side of the drainage port (12), a water injection rod (4) is provided at the lower part of the top pressure plate (1), and the water injection rod (4) is evenly arranged on the outer side of the adsorption-type drilling assembly (3) on the circumference; The adsorption-type drilling assembly (3) comprises an outer cover shell (31), a pointed cone seat (32) and a pull-out type adsorption mechanism (33); the outer cover shell (31) is arranged at the lower center of the top pressure plate (1); the outer cover shell (31) is cylindrical; the pointed cone seat (32) is arranged at the lower end of the outer cover shell (31); the pull-out type adsorption mechanism (33) is slidably arranged on the inner side of the outer cover shell (31); and the magnetic power circulation drainage assembly (2) is arranged on the inner side of the pull-out type adsorption mechanism (33); The magnetic power circulating water collection and drainage assembly (2) comprises a water collection inner shell (21), a water pumping rod (24) and a circulating water suction mechanism (23); the water collection inner shell (21) is arranged on the upper part of the pointed cone seat (32); the interior of the water collection inner shell (21) is hollow; the water collection inner shell (21) is arranged on the inner side of the drainage port (12); the circulating water suction mechanism (23) is rotatably arranged inside the water collection inner shell (21); and the water pumping rod (24) is arranged on the inner side of the circulating water suction mechanism (23).

2. A saline-alkali land drainage device according to claim 1, characterized in that: The circulating water absorption mechanism (23) comprises a rotating motor (22), a rotating cylinder (231), a suction chamber (232), a drainage chamber (233), a fixed electromagnetic plate (235) and a sliding magnetic block (236); the rotating motor (22) is embedded in the interior of the pointed cone seat (32); the rotating cylinder (231) is disposed at the output end of the rotating motor (22); the rotating cylinder (231) is rotatably disposed in the interior of the water collecting inner shell (21); the suction chamber (232) and the drainage chamber (233) are respectively and evenly arranged in a circumference in the interior of the rotating cylinder (231); the suction chamber (232) passes through the side of the rotating cylinder (231); The suction chamber (232) and the drainage chamber (233) are arranged in a staggered manner, the suction chamber (232) and the drainage chamber (233) are connected to each other, the suction chamber (232) and the drainage chamber (233) are evenly distributed around the circumference and are arranged in a linear array along the axis of the rotating cylinder (231), and flexible straps (234) are provided at one end of the two side walls of the suction chamber (232) close to the rotating cylinder (231). The flexible straps (234) are arranged at the connection between the suction chamber (232) and the drainage chamber (233), and one end of the flexible straps (234) facing the inner side of the drainage chamber (233) is attached to the inner wall of the rotating cylinder (231).

3. A saline-alkali land drainage device according to claim 2, characterized in that: The fixed electromagnetic plates (235) are evenly distributed around the circumference of the water pumping rod (24) and embedded in the interior of the rotating cylinder (231); the fixed electromagnetic plates (235) are arranged through the suction chamber (232) on a side close to the water pumping rod (24); the sliding magnetic block (236) is slidably arranged in the interior of the suction chamber (232); the outer side surface of the sliding magnetic block (236) is an arc surface; and the side wall of the sliding magnetic block (236) is slidably fitted with the inner side wall of the suction chamber (232).

4. A saline-alkali land drainage device according to claim 3, characterized in that: A water suction port (28) is provided through the center of the upper end of the water collecting inner shell (21); a water pump (25) is embedded in the upper part of the water collecting inner shell (21); the water outlet end of the water pump (25) is connected to the water suction port (28); the water suction rod (24) is connected to the suction end of the water suction pump (25); the lower end of the water suction rod (24) extends to the lower end of the rotating cylinder (231); an electric ring (238) is rotatably provided on the outer side of the water suction rod (24); the electric ring (238) is provided at the upper end of the rotating cylinder (231); a driving battery is provided inside the electric ring (238); the driving batteries are respectively electrically connected to fixed electromagnetic plates (235) evenly distributed around the circumference.

5. A saline-alkali land drainage device according to claim 4, characterized in that: Suction holes (241) are evenly distributed on the circumference of the side wall of the pumping rod (24), and the suction holes (241) are arranged in a linear array along the axis of the pumping rod (24). In an initial state, the positions of the suction holes (241) are arranged corresponding to the suction chambers (232). A water collecting groove (237) is provided at the lower part of the side wall of the drainage chamber (233) near the pumping rod (24) and penetrating the rotating cylinder (231). When the rotating cylinder (231) rotates at an angle formed by adjacent suction chambers (232) in the circumferential direction, the water collecting groove (237) is connected to the suction holes (241).

6. A saline-alkali land drainage device according to claim 5, characterized in that: Liquid-passing grooves (26) are evenly distributed around the circumference of the side wall of the water-collecting inner shell (21), and the evenly distributed liquid-passing grooves (26) are arranged in a linear array along the axis of the water-collecting inner shell (21). In an initial state, the liquid-passing grooves (26) are connected to the suction chamber (232), and a filter layer (27) is provided in the liquid-passing grooves (26).

7. A saline-alkali land drainage device according to claim 6, characterized in that: The pull-out type adsorption mechanism (33) comprises a sliding ring (331), an adsorption frame (332) and an adsorption cotton strip (333); the sliding ring (331) is movably sleeved on the outside of the water collecting inner shell (21); a handle (334) is symmetrically provided at the upper end of the sliding ring (331); the adsorption frame (332) is evenly distributed around the circumference of the lower part of the sliding ring (331); the adsorption frame (332) moves between the water collecting inner shell (21) and the outer cover shell (31); the adsorption cotton strip (333) is installed in the adsorption frame (332); and the outer wall of the outer cover shell (31) is evenly distributed around the circumference with penetration holes (34).

8. A saline-alkali land drainage device according to claim 7, characterized in that: The water injection rod (4) is a hollow structure, the lower end of the water injection rod (4) is in a pointed cone shape, the outer wall of the water injection rod (4) is circumferentially evenly penetrated with water injection holes (41), the upper wall of the top pressure plate (1) is provided with a water filling port (11), the interior of the top pressure plate (1) is provided with a water injection pump, the water outlet end of the water injection pump is respectively connected to the water injection rods (4) in the circumferential array, and the water inlet end of the water injection pump is connected to the water filling port (11).

9. A saline-alkali land drainage device according to claim 8, characterized in that: The flexible strap (234) is made of silicone rubber, and the filter layer (27) is made of fiber material.

Images