Drainage system for saline-alkali soil improvement
By introducing spiral sheets and pin rod structures into the drainage system, the problem of easy blockage of seepage holes is solved, efficient discharge of brine in saline-alkali land and automatic cleaning of the system are achieved, and the improvement effect of saline-alkali land is improved.
Patent Information
- Application Number
- CN202510843985.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2025-08-12
AI Technical Summary
The existing concealed pipe drainage system is prone to blockage in the water seepage holes in the saline-alkali land, resulting in poor drainage effect, difficult cleaning and high cost.
A drainage system is designed, including a drainage pipe buried under the soil layer of saline-alkali land. The drainage pipe is equipped with a U-shaped frame and a top rod. Combined with a spiral piece and a driving mechanism, the spiral piece rotates to clean up blockages, and cooperates with the spiral rod to loosen and clean soil, and automatically clean it with rainwater or artificial water flow.
Effectively prevent the water seepage holes from being blocked, ensure the discharge of salt water, improve the improvement effect of saline-alkali land, simplify the cleaning process, and reduce project costs.
Smart Images
Figure CN120465443A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of soil drainage, and in particular relates to a drainage system for improving saline-alkali land. Background Art
[0002] Remediation of saline-alkali land is a key measure for improving land utilization and ensuring food security. The formation of saline-alkali land is primarily due to high groundwater levels, poor soil drainage, and excessive salt accumulation in the soil, which deteriorates the soil's physical and chemical properties and affects crop growth. To effectively remediate saline-alkali land, drainage systems are a key technical tool.
[0003] However, the existing concealed pipe drainage system has a serious technical bottleneck: the seepage holes on the drainage pipes are easily clogged. In saline-alkali environments, the soil usually contains a large amount of fine particulate matter (such as silt and fine sand) and salt. As the water flows, these fine particulate matter and salt easily enter the seepage holes of the drainage pipes and deposit in the holes, causing the seepage holes to become clogged. Once the seepage holes are clogged, the drainage capacity of the drainage pipes will be greatly reduced, or even completely fail, thus affecting the normal operation of the entire drainage system. In addition, since the drainage pipes are buried underground, once they are clogged, cleaning and maintenance work is very difficult. The drainage pipes need to be dug out for cleaning, which is not only time-consuming and labor-intensive, but also increases project costs. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide a drainage system for improving saline-alkali land, so as to solve the problem in the prior art that the seepage holes provided on the drainage pipe are easily blocked when in use, resulting in poor drainage effect.
[0005] In order to achieve the above object, the present invention provides the following technical solutions: The drain pipe of the present invention is a kind of drainage system for improving saline-alkali land, comprising a drain pipe buried under the soil layer of saline-alkali land, wherein the upper portion of the drain pipe is provided with a plurality of evenly distributed seepage holes, the drain pipe outside the seepage holes is provided with a U-shaped frame, the open end of the U-shaped frame is fixed to the drain pipe, the closed end of the U-shaped frame is provided with a push rod, the push rod is slidably connected to the U-shaped frame, the outer side of the push rod is sleeved with a closed pipe, the end of the closed pipe is fixed to the U-shaped frame, a spring is provided inside the closed pipe, the two ends of the spring are respectively fixed to the end of the push rod and the end of the closed pipe, the other end of the push rod is located inside the drain pipe, the lower portion of the drain pipe is provided with a rectangular through groove, the lower portion of the rectangular through groove is provided with a U-shaped collecting trough, the open end of the U-shaped collecting trough is fixed to the drain pipe, the two ends of the U-shaped collecting trough are arranged flush with the two ends of the drain pipe, the drain pipe is provided with a spiral sheet, and at least one end of the drain pipe is provided with a driving mechanism, the driving mechanism is used to drive the spiral sheet to rotate in the drain pipe.
[0006] Furthermore, the driving mechanism includes a hollow mounting frame arranged at the end of the drain pipe, a rotating shaft is provided in the middle of the hollow mounting frame, a rotating block is provided on one end of the rotating shaft, a fixing plate connected to the end of the spiral piece is provided on the rotating block, the fixing plate fixes the end of the spiral piece to the rotating block, and a driving assembly is provided on the other end of the rotating shaft.
[0007] Furthermore, the driving assembly includes a connecting block, which is fixed to the other end of the rotating shaft. Several rotating plates are evenly distributed on the circumference of the connecting block. Drainage ditches are also symmetrically provided on the saline-alkali soil layer, and several of the rotating plates are located in the drainage ditches.
[0008] Furthermore, a plurality of insertion rods are provided at the lower portion of the drainage pipe, one end of the insertion rod is fixed to the drainage pipe, and the other end of the insertion rod is inserted into the saline-alkali soil layer.
[0009] Furthermore, several of the rotating plates are provided with a water collecting bucket, one end of the water collecting bucket is fixed on the rotating plate, a drainage notch facing the end of the drain pipe is opened on the water collecting bucket, and a water guide plate is inclined at the end of the U-shaped collecting trough below the rotating shaft, and one end of the water guide plate is fixed on the end of the U-collecting trough. When the rotating plate rotates, the water collecting bucket carries the water in the drainage ditch to the top of the water guide plate for discharge, and the discharged water passes through the water guide plate into the U-shaped collecting trough.
[0010] Furthermore, an elastic membrane is provided on the inner side of the closed end of the U-shaped frame, the elastic membrane is sleeved on the outside of the top rod, and the two ends of the elastic membrane are respectively fixed on the closed inner side of the U-shaped frame and the outer surface of the top rod.
[0011] Furthermore, a plurality of bristles evenly distributed around the circumference are provided on the outer surface of the mandrel, one end of the bristles is fixed to the mandrel, and the other end of the bristles is arranged close to the inner wall of the water seepage hole.
[0012] The beneficial effects of the present invention are: This technical solution, through the setting of spiral blades, can not only discharge the mud that enters the drainage pipe, but also, in conjunction with the use of the top rod, can clean the mud that blocks the seepage holes, thereby ensuring that the "salt water" in the saline-alkali land is discharged from the drainage pipe, thereby improving the improvement effect of the saline-alkali land.
[0013] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration: Figure 1 This is a three-dimensional schematic diagram of the drainage system of the present invention arranged in saline-alkali land; Figure 2 is a three-dimensional schematic diagram of the drainage system of the present invention; Figure 3 It is a side view schematic diagram of the drainage system of the present invention; Figure 4 A three-dimensional schematic diagram of a drainage pipe in the drainage system of the present invention; Figure 5 A schematic diagram of the partial arrangement of the water collecting hopper and the water guide plate in the drainage system of the present invention; Figure 6 This is a partial schematic diagram of an elastic membrane provided at the top rod of the drainage system of the present invention; Figure 7 Schematic diagram of the rotation mechanism of the spiral sheet in the present invention.
[0015] The following are marked in the accompanying drawings: 1. Saline-alkali soil layer; 2. Drain pipe; 3. Rectangular through groove; 4. Seepage hole; 5. U-shaped frame; 6. Push rod; 7. Spring; 8. Closing pipe; 9. Spiral plate; 10. U-shaped collecting trough; 11. Fixed plate; 12. Hollow mounting frame; 13. Rotating block; 14. Rotating shaft; 15. Rotating plate; 16. Drain ditch; 17. Water guide plate; 18. Water collecting hopper; 19. Elastic membrane; 20. Bristles; 21. Insert rod; 22. Connecting block. DETAILED DESCRIPTION
[0016] like Figure 1-Figure 7As shown, the present invention is a drainage system for improving saline-alkali land, comprising a drainage pipe 2 buried under a saline-alkali soil layer 1, a plurality of evenly distributed seepage holes 4 are provided on the upper part of the drainage pipe 2 (of course, the setting area of the drainage holes can be set according to actual conditions, and can also cover the entire drainage pipe 2). Of course, a pebble layer should be provided above the seepage holes 4 to block soil and fine sand and prevent a large amount of them from entering the seepage holes 4. A U-shaped frame 5 is provided on the drainage pipe 2 outside the seepage holes 4, the open end of the U-shaped frame 5 is fixed to the drainage pipe 2, and a top rod 6 is provided on the closed end of the U-shaped frame 5. The top rod 6 is slidably connected to the U-shaped frame 5, and the outside of the top rod 6 A closed tube 8 is provided in the sleeve, and the end of the closed tube 8 is fixed on the U-shaped frame 5. A spring 7 is provided inside the closed tube 8. The two ends of the spring 7 are respectively fixed on the end of the top rod 6 and the end of the closed tube 8. The other end of the top rod 6 is located inside the drain pipe 2. A rectangular through groove 3 is provided at the lower part of the drain pipe 2, and a U-shaped collecting groove 10 is provided below the rectangular through groove 3. The open end of the U-shaped collecting groove 10 is fixed on the drain pipe 2, and the two ends of the U-shaped collecting groove 10 are flush with the two ends of the drain pipe 2. A spiral piece 9 is provided inside the drain pipe 2, and a driving mechanism is provided at least at one end of the drain pipe 2. The driving mechanism is used to drive the spiral piece 9 to rotate in the drain pipe 2.
[0017] The working principle of the above technical solution is: When regularly cleaning the mud or other foreign matter in the seepage hole 4, it is only necessary to control the rotation of the driving mechanism to drive the internal spiral piece 9 to rotate. When the spiral piece 9 rotates, since its inner wall contacts the inner wall of the drain pipe 2, the spiral piece 9 will continuously scrape off the mud and sand adhering to the inner wall of the drain pipe 2 and transport it to one end of the drain pipe 2 until it is discharged from the end of the drain pipe 2. At the same time, during the rotation of the spiral piece 9, due to its rotation characteristics, the distance between the upper spiral piece 9 and the top rod 6 will change during the rotation (such as Figure 7 As shown in the figure), during the movement, it will contact one end of the push rod 6 located in the drain pipe 2 (the end is smoothly transitioned, and when the contact is lifted, it pushes it upward), and then push the push rod 6 upward. When the spiral blade rotates out of the way, the push rod 6 is reset under the action of the spring 7. Then, when the spiral piece 9 rotates, the push rod 6 will continue to reciprocate, and then the soil in the seepage hole 4 will be loosened and discharged outward, or fall inward into the drain pipe 2 and be discharged by the spiral piece 9.
[0018] Of course, the reason for setting the rectangular through groove 3 and the U-shaped collecting groove 10 at the lower part of the drain pipe 2 is that the spiral blade 9 is in contact with the inner wall of the drain pipe 2 and has a certain height, which will hinder the flow of water in the drain pipe 2. Therefore, the U-shaped collecting groove 10 is set to allow the entering "salt water" to flow directly to the U-shaped collecting groove 10 below for discharge, thereby improving the smoothness and real-time performance of drainage of the drain pipe 2, and avoiding the accumulation of "salt water" in the drain pipe 2, which may lead to the problem of internal salt crystallization.
[0019] That is, the present technical solution can not only discharge the mud that enters the drain pipe 2 through the setting of the spiral blade 9, but also, in conjunction with the use of the top rod 6, clean the mud that blocks the seepage hole 4, thereby ensuring that the "salt water" in the saline-alkali land is discharged from the drain pipe 2, thereby improving the improvement effect of the saline-alkali land.
[0020] In one embodiment, the drive mechanism includes a hollow mounting bracket 12 disposed at the end of the drain pipe 2. A rotating shaft 14 is disposed in the middle of the hollow mounting bracket 12. A rotating block 13 is disposed at one end of the rotating shaft 14. A fixing plate 11 is disposed on the rotating block 13, which is connected to the end of the spiral blade 9. The fixing plate 11 secures the end of the spiral blade 9 to the rotating block 13. A driving assembly is disposed at the other end of the rotating shaft 14. The hollow mounting bracket 12 has the advantage of not obstructing the discharge of mud or salt water from the drain pipe 2.
[0021] In one practicable embodiment, the driving assembly includes a connecting block 22, which is fixed to the other end of the rotating shaft 14. A number of rotating plates 15 are evenly distributed around the circumference of the connecting block 22. A drainage ditch 16 is also symmetrically provided on the saline-alkali soil layer 1, and a number of rotating plates 15 are located in the drainage ditch 16 (preferably V-shaped).
[0022] By setting up the drainage ditch 16, during the rainy season, rainwater gathers in the drainage ditch 16 and flows, which will drive the rotating plate 15 to rotate, and then drive the spiral piece 9 to rotate continuously, thereby realizing automatic cleaning of the inside of the drainage pipe 2. Of course, in the non-rainy season, water can also be injected into the drainage ditch 16 to make the water flow drive the rotating plate 15 to rotate, and then drive the inner spiral piece 9 to rotate for cleaning. The advantage of this method is that there is no need to set a driving component or electronic control component such as a rotating motor at the end of each drainage pipe 2, which simplifies the structure and saves costs. At the same time, as long as there is water flowing in the drainage ditch 16, all the spiral pieces 9 buried in the saline-alkali land can be driven to rotate at one time, thereby realizing efficient cleaning of the drainage pipe 2 and the seepage hole 4. Of course, a fixed frame is also set outside the rotating plate 15, and a rotating motor is set on the fixed frame. The output end of the rotating motor is fixed to the connecting block 22, so that the spiral piece 9 can be driven to rotate by electric energy to achieve clearing during drought. I will not go into details here.
[0023] In one feasible method, a plurality of insertion rods 21 are further provided at the lower part of the drainage pipe 2, one end of the insertion rod 21 is fixed on the drainage pipe 2, and the other end of the insertion rod 21 is inserted into the saline-alkali soil layer 1. The provision of the insertion rod 21 can stably bury the drainage pipe 2 in the saline-alkali soil layer 1 to avoid the problem of its own rotation.
[0024] In one feasible embodiment, a water collecting bucket 18 is provided on each of the rotating plates 15, one end of the water collecting bucket 18 is fixed on the rotating plate 15, a drainage notch is opened on the water collecting bucket 18 toward the end of the drain pipe 2, and a water guide plate 17 is inclined at the end of the U-shaped collecting trough 10 below the rotating shaft 14, one end of the water guide plate 17 is fixed on the end of the U-collecting trough. When the rotating plate 15 rotates, the water collecting bucket 18 carries the water in the drainage ditch 16 to the top of the water guide plate 17 for discharge, and the discharged water passes through the water guide plate 17 into the U-shaped collecting trough 10.
[0025] When the rotating plate 15 rotates from the bottom to the top, the water collecting bucket 18 will be filled with water and then carried to the top. During the process of being carried to the top, under the action of water gravity, it will flow downward from the drainage gap and then fall to the end of the water guide plate 17 (U-shaped setting), and then enter the U-shaped collection trough 10, flushing and cleaning the mud and sand and other foreign matter in the U-shaped collection trough 10, further ensuring the anti-blocking and cleaning effect of the structure. Of course, it should be noted that this method of carrying water to the top for discharge can refer to the waterwheel in the prior art, and will not be described in detail here.
[0026] In one feasible manner, an elastic membrane 19 is provided on the inner side surface of the closed end of the U-shaped frame 5, the elastic membrane 19 is sleeved on the outside of the top rod 6, and the two ends of the elastic membrane 19 are respectively fixed on the closed inner side surface of the U-shaped frame 5 and the outer surface of the top rod 6. The elastic membrane 19 seals the sliding connection between the top rod 6 and the U-shaped frame 5 to prevent mud and sand from entering, which would cause the sliding effect to deteriorate.
[0027] In one feasible method, a plurality of bristles 20 evenly distributed around the circumference are provided on the outer surface of the top rod 6, one end of the bristles 20 is fixed on the top rod 6, and the other end of the bristles 20 is arranged close to the inner wall of the seepage hole 4. The arrangement of the bristles 20 will increase the contact area with the clogging soil, thereby improving the cleaning effect of the blockage. Of course, a barb can also be provided on the outer surface of the top rod 6. When the top rod 6 moves downward, the soil and other foreign objects in the seepage hole 4 are hooked and pulled into the drain pipe 2 to fall. When the top rod 6 moves upward, the contact resistance between the back of the barb and the soil is small, and the soil will not be pushed out (after exiting, it will easily enter the seepage hole 4 under the action of water flow, causing blockage), thereby improving the cleaning effect of the soil in the seepage hole 4.
[0028] like Figure 7As shown, the spiral piece 9 at 0° represents the spiral piece 9 in the initial position, and when the spiral piece 9 rotates 60°, 120°, 180°, 240° and 300°, the position of the upper part of the spiral piece 9 visually presents a state of gradually moving forward (produced by the spiral setting), and after rotating 360°, the spiral piece 9 is reset to the initial 0° position. Therefore, during the rotation of the spiral piece 9, it will continuously reciprocate in contact with the top rod 6, thereby realizing the clearing operation of the seepage hole 4.
[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.
Claims
1. A drainage system for improving saline-alkali land, characterized by: The invention comprises a drainage pipe (2) buried under a saline-alkali soil layer (1), wherein the upper portion of the drainage pipe (2) is provided with a plurality of evenly distributed seepage holes (4), and the drainage pipe (2) outside the seepage holes (4) is provided with a U-shaped frame (5), the open end of the U-shaped frame (5) is fixed to the drainage pipe (2), the closed end of the U-shaped frame (5) is provided with a top rod (6), the top rod (6) is slidably connected to the U-shaped frame (5), the outer side of the top rod (6) is sleeved with a closed pipe (8), the end of the closed pipe (8) is fixed to the U-shaped frame (5), the interior of the closed pipe (8) is provided with a spring (7), and the two ends of the spring (7) are respectively The drain pipe (2) is fixed to the end of the top rod (6) and the end of the closed tube (8), the other end of the top rod (6) is located inside the drain pipe (2), the lower part of the drain pipe (2) is provided with a rectangular through groove (3), the lower part of the rectangular through groove (3) is provided with a U-shaped collecting groove (10), the open end of the U-shaped collecting groove (10) is fixed to the drain pipe (2), the two ends of the U-shaped collecting groove (10) are arranged flush with the two ends of the drain pipe (2), the interior of the drain pipe (2) is provided with a spiral piece (9), at least one end of the drain pipe (2) is provided with a driving mechanism, the driving mechanism is used to drive the spiral piece (9) to rotate in the drain pipe (2).
2. A drainage system for improving saline-alkali land according to claim 1, characterized in that: The driving mechanism comprises a hollow mounting frame (12) arranged at the end of the drain pipe (2), a rotating shaft (14) is provided in the middle of the hollow mounting frame (12), a rotating block (13) is provided on one end of the rotating shaft (14), a fixing plate (11) connected to the end of the spiral piece (9) is provided on the rotating block (13), the fixing plate (11) fixes the end of the spiral piece (9) to the rotating block (13), and a driving component is provided on the other end of the rotating shaft (14).
3. A drainage system for improving saline-alkali land according to claim 2, characterized in that: The driving assembly includes a connecting block (22), the connecting block (22) is fixed to the other end of the rotating shaft (14), a plurality of rotating plates (15) are evenly distributed on the circumference of the connecting block (22), and a drainage ditch (16) is symmetrically provided on the saline-alkali soil layer (1), and the plurality of rotating plates (15) are located in the drainage ditch (16).
4. The drainage system for improving saline-alkali land according to claim 1, characterized in that: A plurality of insertion rods (21) are further provided at the lower portion of the drainage pipe (2), one end of the insertion rod (21) is fixed to the drainage pipe (2), and the other end of the insertion rod (21) is inserted into the saline-alkali soil layer (1).
5. The drainage system for improving saline-alkali land according to claim 3, characterized in that: A water collecting bucket (18) is provided on each of the rotating plates (15), one end of the water collecting bucket (18) is fixed on the rotating plate (15), a drainage notch is provided on the water collecting bucket (18) facing the end of the drainage pipe (2), a water guide plate (17) is provided at an angle at the end of the U-shaped collecting trough (10) below the rotating shaft (14), one end of the water guide plate (17) is fixed on the end of the U-shaped collecting trough, when the rotating plate (15) rotates, the water collecting bucket (18) carries the water in the drainage ditch (16) to the top of the water guide plate (17) for discharge, and the discharged water passes through the water guide plate (17) and enters the U-shaped collecting trough (10).
6. The drainage system for improving saline-alkali land according to claim 1, characterized in that: An elastic membrane (19) is provided on the inner side surface of the closed end of the U-shaped frame (5), the elastic membrane (19) is sleeved and arranged on the outside of the top rod (6), and the two ends of the elastic membrane (19) are respectively fixed to the closed inner side surface of the U-shaped frame (5) and the outer surface of the top rod (6).
7. The drainage system for improving saline-alkali land according to claim 1, characterized in that: A plurality of bristles (20) evenly distributed around the circumference are provided on the outer surface of the push rod (6), one end of the bristles (20) is fixed to the push rod (6), and the other end of the bristles (20) is arranged close to the inner wall of the water seepage hole (4).