Water and soil loss prevention and control device for southern red and yellow soil cultivated land

Abstract

The invention belongs to the technical field of agricultural water and soil conservation, and discloses a water and soil loss prevention and control device for southern red and yellow soil cultivated land, which comprises a soil retaining outer wall, a soil retaining inner wall is fixedly mounted on one side of the soil retaining outer wall, a telescopic frame is fixedly mounted at the top of the soil retaining inner wall, and a rectangular box is fixedly mounted at the bottom of the other side of the soil retaining outer wall. A lifting plate is slidably mounted on the inner wall of the soil retaining outer wall, a water collecting funnel is fixedly mounted in the soil retaining inner wall, and two sewer channels are fixedly mounted at the bottom of the water collecting funnel. And through transmission of a series of connecting rods and a synchronous belt, the conical column is driven to periodically scrape and sweep the surface of the interception net, attached silt and sundries are effectively removed, the cleanness and drainage efficiency of the interception net are kept, and the automatic dredging function reduces the frequency and difficulty of manual maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural soil and water conservation, and in particular is a device for preventing and controlling soil and water loss in red and yellow soil farmland in the south. Background Art

[0002] The red-yellow soil farmland in the south is mainly distributed in 11 provinces and cities south of the Yangtze River, accounting for 22.70% of the country's land area, of which the cultivated land area accounts for about 30% of the country's total cultivated land area. The region has excellent natural conditions and rich water and heat resources. The average annual rainfall is between 12002500mm and the average annual solar radiation is 98125J / cm 2 The annual average temperature is 1418℃, and the accumulated temperature ≥10℃ is 4500-9000℃. It is a tropical and subtropical humid climate zone.

[0003] However, due to the dense population, low per capita land area, and unreasonable land use methods, especially the over-exploitation of sloping farmland, the problem of soil erosion is becoming increasingly serious.

[0004] At present, traditional soil and water loss prevention and control devices mostly use fixed interception nets or retaining wall structures. After long-term use, these devices often have accumulation of mud and debris, resulting in poor drainage and difficult maintenance. In addition, due to differences in terrain and soil conditions, fixed devices are often difficult to adapt to the needs of different heights, resulting in limited protection effects. At the same time, in a high humidity environment, drainage channels are easily blocked, further exacerbating the risk of soil erosion. Therefore, they need to be improved and optimized. Summary of the invention

[0005] In order to solve the problems raised in the above background technology that traditional soil and water loss prevention and control devices have sediment accumulation, difficult maintenance, poor height adaptability and easy blockage of drainage channels, the present invention provides a soil and water loss prevention and control device for red and yellow soil farmland in the south.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a soil erosion prevention and control device for red-yellow soil cultivated land in the south, comprising an outer retaining wall, a retaining inner wall is fixedly installed on one side of the outer retaining wall, a telescopic frame is fixedly installed on the top of the inner retaining wall, a rectangular box is fixedly installed on the bottom of the other side of the outer retaining wall, a lifting plate is slidably installed on the inner wall of the outer retaining wall, a water collecting funnel is fixedly installed inside the inner retaining wall, two drainage channels are fixedly installed at the bottom of the water collecting funnel, and dredging mechanisms are respectively arranged at the bottom of the two drainage channels, an adjusting mechanism is arranged inside the outer retaining wall, and a lifting mechanism is fixedly installed on the outer wall of the outer retaining wall;

[0007] The dredging mechanism includes a rotating rod 1 rotatably mounted on the inner wall of the sewer channel, a plurality of drainage fans are fixedly mounted on the outer wall of the rotating rod 1 at equal distances, one end of the rotating rod 1 extends out of the sewer channel, a connecting rod 1 is fixedly sleeved on the outer wall of the rotating rod 1, a T-shaped column is fixedly mounted on one side of the connecting rod 1, a rotating rod 2 is rotatably mounted inside the retaining inner wall, a connecting rod 2 is fixedly sleeved on the outer wall of the rotating rod 2, a waist-shaped groove is opened on the outer wall of the connecting rod 2, the T-shaped column passes through the waist-shaped groove and is movably connected to the waist-shaped groove, a rotating rod 3 is rotatably mounted on the inner wall of the retaining outer wall, one end of the rotating rod 3 extends into the retaining inner wall, the rotating rod 3 and the rotating rod 2 are connected through a synchronous belt transmission, a connecting rod 3 is fixedly sleeved on the outer wall of the rotating rod 3, and a plurality of conical columns are fixedly mounted on the outer wall of the connecting rod 3.

[0008] Preferably, the adjustment mechanism includes a bidirectional screw rod rotatably mounted on the inner wall of the bottom of the retaining outer wall, two moving blocks are threadedly mounted on the outer wall of the bidirectional screw rod, an interception net is fixedly mounted on one side of the two moving blocks close to each other, and rectangular corrugated sleeves are respectively fixedly mounted on the other sides of the two moving blocks, both of the two rectangular corrugated sleeves are fixedly connected to the retaining outer wall, and a bevel gear is provided on the fixed sleeve on the middle outer wall of the bidirectional screw rod.

[0009] Preferably, a limiting sliding rod is fixedly installed on the bottom inner wall of the retaining outer wall, and the limiting sliding rod passes through the two moving blocks and is slidably connected with the two moving blocks.

[0010] Preferably, the rectangular box is designed as a hollow cavity, a driving motor is fixedly mounted on the bottom inner wall of the rectangular box, the output shaft of the driving motor extends into the retaining outer wall, a bevel gear 2 is fixedly mounted on the output shaft of the driving motor, and the bevel gear 2 is meshed with the bevel gear 1.

[0011] Preferably, two rectangular rods 1 are hingedly installed on the top of the rectangular box, and two rectangular rods 2 are hingedly installed on the outer wall of the lifting plate. The two rectangular rods 2 are slidingly connected to the corresponding rectangular rod 1 respectively, and the two rectangular rods 1 and the two rectangular rods 2 are fixedly connected to the fixing rod through nuts.

[0012] Preferably, two groups of identical insertion components are arranged below the retaining outer wall and the rectangular box, and the insertion components include two insertion nails, and threaded rings are respectively arranged on the outer walls of the two insertion nails, and conical tips are respectively fixedly installed on the bottom ends of the two insertion nails, and the two insertion nails are fixedly connected by a Z-shaped connecting rod, one of the insertion nails is fixedly connected to the bottom of the retaining outer wall, and the top of the other insertion nail extends to the rectangular box and is fixedly connected to the rectangular box through a nut.

[0013] Preferably, a humidity sensor and a photovoltaic panel are fixedly mounted on the top of the rectangular box, respectively, and the photovoltaic panel is installed in an inclined state.

[0014] Preferably, the lifting mechanism includes a support frame fixedly mounted on the outer wall of the retaining wall, two groups of identical lifting components are arranged on the top of the support frame, and the lifting component includes a cylindrical barrel fixedly mounted on the top of the support frame, a cylindrical rod is arranged inside the cylindrical barrel, the cylindrical rod passes through the lifting plate and is rotatably connected to the lifting plate, a threaded groove is opened on the outer wall of the cylindrical rod, a hollow cylinder is slidably mounted on the inner wall of the cylindrical barrel, a second protrusion is fixedly mounted on the inner wall of the hollow cylinder, and the second protrusion is slidably connected to the threaded groove.

[0015] Preferably, the inner wall of the cylindrical barrel is provided with a plurality of limit grooves from top to bottom, and the plurality of limit grooves are designed to be equidistant.

[0016] Preferably, a circular ring 1 is fixedly sleeved on the outer wall of the cylindrical rod, and two protrusions 1 are fixedly installed on the outer wall of the circular ring 1, and the two protrusions 1 are matched with corresponding limiting grooves.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is provided with a dredging mechanism. When rainwater flows into the water collecting funnel through the telescopic frame, it can drive the drainage fan to rotate, and then drive the cone column to periodically scrape the surface of the interception net through a series of connecting rods and synchronous belts, effectively removing the attached silt and debris, and maintaining the cleanliness and drainage efficiency of the interception net. This automatic dredging function reduces the frequency and difficulty of manual maintenance.

[0019] The present invention realizes flexible adjustment of the height of the lifting plate through the threaded cooperation of the cylindrical rod and the hollow cylinder. After reaching the required height, by rotating the cylindrical rod clockwise, the protrusion 1 is embedded in the limit groove of the cylindrical barrel, and the hollow cylinder and the ring 1 are pressed tightly to ensure that the height is fixed and the stability is strong. In addition, by adjusting the telescopic length of the rectangular rod 2 in the rectangular rod 1 and inserting the fixing rod to lock it, a triangular support structure is formed, which improves the overall anti-overturning ability.

[0020] The present invention is provided with an adjustment mechanism. When the humidity sensor detects that the ambient humidity exceeds a set threshold value, the drive motor can be automatically started, and the bidirectional screw rod can be driven to rotate through the bevel gear pair, thereby driving the moving blocks on both sides to move horizontally in opposite directions, stretching the high-elastic interception net, and expanding the width of the drainage channel at the bottom of the device, thereby significantly improving the drainage flow rate and effectively coping with high humidity environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a partial bottom view structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the retaining inner wall of the present invention;

[0024] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the water collecting funnel and the drainage channel of the present invention;

[0025] Figure 5 For the present invention Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0026] Figure 6 It is a schematic diagram of the partial structure of the dredging mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the explosion structure of the dredging mechanism of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0029] Fig. 9 This is a schematic diagram of the internal structure of the rectangular box of the present invention;

[0030] Fig.10 This is a schematic diagram of the support structure of the present invention;

[0031] Fig.11 This is a schematic diagram of the explosion structure of the lifting assembly of the present invention;

[0032] Fig.12 This is a schematic diagram of the front cross-sectional structure of a cylindrical barrel of the present invention;

[0033] Fig.13 It is a schematic diagram of the limiting groove structure of the present invention.

[0034] In the figure: 1. retaining outer wall; 101. insert nail; 1011. threaded ring; 1012. conical tip; 1013. Z-shaped connecting rod; 2. retaining inner wall; 201. water collecting funnel; 2011. sewer channel; 202. telescopic frame; 3. lifting plate; 4. rotating rod 1; 401. drainage fan; 402. connecting rod 1; 4021. T-shaped column; 5. rotating rod 2; 501. connecting rod 2; 5011. waist-shaped groove; 6. rotating rod 3; 601. connecting rod 3; 6011. conical column; 7. synchronous belt; 8. bidirectional screw rod; 81. Limiting slide bar; 801, bevel gear one; 9, moving block; 901, rectangular corrugated sleeve; 10, intercepting net; 11, driving motor; 1101, bevel gear two; 12, supporting frame; 13, cylindrical barrel; 1301, limiting groove; 14, cylindrical rod; 141, ring one; 142, bump one; 143, hollow cylinder; 144, bump two; 1401, threaded groove; 15, rectangular box; 1501, humidity sensor; 1502, photovoltaic panel; 16, rectangular rod one; 161, rectangular rod two; 162, fixing rod. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figures 1 to 13 As shown, the present invention provides a soil erosion prevention and control device for red and yellow soil cultivated land in the south, comprising a retaining outer wall 1, a retaining inner wall 2 is fixedly installed on one side of the retaining outer wall 1, a telescopic frame 202 is fixedly installed on the top of the retaining inner wall 2, a rectangular box 15 is fixedly installed on the bottom of the other side of the retaining outer wall 1, a lifting plate 3 is slidably installed on the inner wall of the retaining outer wall 1, a water collecting funnel 201 is fixedly installed inside the retaining inner wall 2, two drainage channels 2011 are fixedly installed at the bottom of the water collecting funnel 201, and dredging mechanisms are respectively arranged at the bottom of the two drainage channels 2011, an adjusting mechanism is arranged inside the retaining outer wall 1, and a lifting mechanism is fixedly installed on the outer wall of the retaining outer wall 1;

[0037] The dredging mechanism includes a rotating rod 4 rotatably mounted on the inner wall of the sewer channel 2011, a plurality of drainage fans 401 are fixedly mounted on the outer wall of the rotating rod 4 at equal distances, one end of the rotating rod 4 extends out of the sewer channel 2011, a connecting rod 402 is fixedly sleeved on the outer wall of the rotating rod 4, a T-shaped column 4021 is fixedly mounted on one side of the connecting rod 402, a rotating rod 25 is rotatably mounted inside the retaining inner wall 2, a connecting rod 2501 is fixedly sleeved on the outer wall of the rotating rod 25, and a connecting rod 2502 is fixedly sleeved on the outer wall of the rotating rod 25. A waist-shaped groove 5011 is opened on the outer wall of the second rod 501, and the T-shaped column 4021 passes through the waist-shaped groove 5011 and is movably connected with the waist-shaped groove 5011. A rotating rod three 6 is rotatably installed on the inner wall of the retaining outer wall 1. One end of the rotating rod three 6 extends into the retaining inner wall 2. The rotating rod three 6 and the rotating rod two 5 are both connected through a synchronous belt 7. A connecting rod three 601 is fixedly sleeved on the outer wall of the rotating rod three 6, and a plurality of conical columns 6011 are fixedly installed on the outer wall of the connecting rod three 601.

[0038] The rainwater is guided to flow through the drainage channel 2011 at the bottom of the water collecting funnel 201, and in the process, the drainage fan 401 is driven to rotate. The flow of rainwater is used to rotate the drainage fan 401, thereby driving the operation of the dredging mechanism. The drainage fan 401 on the rotating rod 4 rotates under the impact of rainwater, and then through the transmission of the connecting rod 1 402 and the T-shaped column 4021, the rotating rod 2 5 and the rotating rod 3 6 are able to move synchronously. The conical column 6011 on the connecting rod 3 601 performs periodic scraping to ensure that the drainage system is unobstructed, reduce the frequency and difficulty of manual maintenance, and improve the use efficiency and life of the device.

[0039] like Figures 2 to 8 As shown, the adjustment mechanism includes a bidirectional screw rod 8 rotatably mounted on the inner wall at the bottom of the retaining outer wall 1, two moving blocks 9 are threadedly mounted on the outer wall of the bidirectional screw rod 8, an interception net 10 is fixedly mounted on one side of the two moving blocks 9 close to each other, and rectangular corrugated sleeves 901 are fixedly mounted on the other sides of the two moving blocks 9, respectively, and the two rectangular corrugated sleeves 901 are both fixedly connected to the retaining outer wall 1, a bevel gear 1 801 is fixedly mounted on the middle outer wall of the bidirectional screw rod 8, a limiting slide bar 81 is fixedly mounted on the inner wall at the bottom of the retaining outer wall 1, the limiting slide bar 81 passes through the two moving blocks 9 and is slidably connected to the two moving blocks 9, the rectangular box 15 is designed as a hollow cavity, a driving motor 11 is fixedly mounted on the inner wall at the bottom of the rectangular box 15, the output shaft of the driving motor 11 extends into the retaining outer wall 1, a bevel gear 2 1101 is fixedly mounted on the output shaft of the driving motor 11, and the bevel gear 2 1101 is meshed with the bevel gear 1 801.

[0040] Through the integrated intelligent control system, the width of the interception net 10 is automatically adjusted according to the real-time monitored environmental humidity data. When the humidity sensor 1501 detects that the environmental humidity exceeds the preset safety threshold, the system immediately starts the drive motor 11, and drives the bidirectional screw 8 to rotate through the transmission of the bevel gear 1 801 and the bevel gear 2 1101. As the bidirectional screw 8 rotates, the two moving blocks 9 move in opposite directions on the bidirectional screw 8, thereby driving the change in the width of the interception net 10, ensuring the efficient adaptability of the device under different rainfall intensities and soil permeability conditions. The fixed connection between the rectangular corrugated sleeve 901 and the retaining wall 1 and the guiding effect of the limit slide 81 on the moving block 9 further enhance the stability and reliability of the adjustment mechanism.

[0041] like Figure 1 As shown, two rectangular rods 16 are hingedly installed on the top of the rectangular box 15, and two rectangular rods 161 are hingedly installed on the outer wall of the lifting plate 3. The two rectangular rods 161 are slidingly connected to the corresponding rectangular rods 16 respectively, and the two rectangular rods 16 and the two rectangular rods 161 are fixedly connected to the fixing rod 162 through nuts.

[0042] Two rectangular rods 16 are hingedly installed on the top of the rectangular box 15, and two rectangular rods 161 are hingedly installed on the outer wall of the lifting plate 3. The hinged connection allows the rectangular rods 16 and 161 to slide relative to each other while maintaining a certain angle, thereby realizing the up and down movement of the lifting plate 3. The user can lock or release the relative position between the rectangular rods 16 and 161 by adjusting the position of the nut according to actual needs, thereby achieving stable support for the lifting plate 3.

[0043] like Figure 1 to Figure 2 As shown, two groups of identical insertion components are arranged below the retaining outer wall 1 and the rectangular box 15, and the insertion components include two insertion nails 101, and threaded rings 1011 are respectively arranged on the outer walls of the two insertion nails 101, and conical tips 1012 are respectively fixedly installed at the bottom ends of the two insertion nails 101, and the two insertion nails 101 are fixedly connected by a Z-shaped connecting rod 1013, one of the insertion nails 101 is fixedly connected to the bottom of the retaining outer wall 1, and the top of the other insertion nail 101 extends to the rectangular box 15 and is fixedly connected to the rectangular box 15 through a nut, and a humidity sensor 1501 and a photovoltaic panel 1502 are respectively fixedly installed on the top of the rectangular box 15, and the photovoltaic panel 1502 is installed in an inclined state.

[0044] By setting up two groups of identical insertion components, it is easy to penetrate deep into the soil for stable installation, which enhances the overall stability of the device and can effectively prevent displacement or overturning caused by loose soil or water erosion. The two insertion nails 101 are fixedly connected by a Z-shaped connecting rod 1013, which further improves the integrity and firmness of the structure. A humidity sensor 1501 is fixedly installed on the top of the rectangular box 15, which can monitor soil moisture in real time and provide accurate data support for the intelligent adjustment of the device. When the humidity exceeds the preset threshold, the device will automatically start the corresponding adjustment mechanism. The inclined installation design of the photovoltaic panel 1502 not only makes full use of light resources and improves the conversion efficiency of solar energy, but also provides continuous power support for the intelligent monitoring and automatic adjustment of the device.

[0045] like Figures 10 to 13 As shown, the lifting mechanism includes a support frame 12 fixedly mounted on the outer wall of the retaining outer wall 1, and two sets of identical lifting components are arranged on the top of the support frame 12. The lifting components include a cylindrical barrel 13 fixedly mounted on the top of the support frame 12, and a cylindrical rod 14 is arranged inside the cylindrical barrel 13. The cylindrical rod 14 passes through the lifting plate 3 and is rotatably connected to the lifting plate 3. A threaded groove 1401 is opened on the outer wall of the cylindrical rod 14, and a hollow cylinder 14 is slidably installed on the inner wall of the cylindrical barrel 13. 3. The inner wall of the hollow cylinder 143 is fixedly mounted with a protrusion 144, which is slidably connected to the threaded groove 1401. The inner wall of the cylindrical barrel 13 is provided with a plurality of limit grooves 1301 from top to bottom, and the plurality of limit grooves 1301 are designed at equal distances. A ring 141 is fixedly sleeved on the outer wall of the cylindrical rod 14, and two protrusions 142 are fixedly mounted on the outer wall of the ring 141, and the two protrusions 142 are adapted to the corresponding limit grooves 1301.

[0046] By setting up a lifting mechanism, when faced with a scenario where a high retaining wall needs to be set up in a low-lying area, the traditional fixed retaining wall is often difficult to meet the requirements. By adjusting the position of the cylindrical rod 14 in the lifting assembly in the cylindrical barrel 13, the user can conveniently control the height of the lifting plate 3, thereby achieving precise adjustment of the height of the retaining wall, so that the device can be flexibly configured according to the actual needs of different terrains, greatly improving its applicability and flexibility.

[0047] The working principle and use process of the present invention:

[0048] The two groups of insertion components are buried vertically underground, and the retaining outer wall 1, the rectangular box 15 and the insertion components are fastened by nuts and bolts to form an inner and outer boundary; the cylindrical rod 14 is rotated counterclockwise, and the threaded groove 1401 on its surface slides with the protrusion 144 of the hollow cylinder 143, driving the hollow cylinder 143 to move downward in the cylindrical barrel 13 and disengage from the ring 141, and the cylindrical rod 14 is vertically pulled up to drive the lifting plate 3 and the telescopic frame 202 to rise synchronously, and the cylindrical barrel 13 moves with the hollow cylinder 143 through the ring 141, and the cylindrical rod 14 is rotated clockwise to make the protrusion 142 embed into the limiting groove 1301 of the cylindrical barrel 13, and at the same time, the hollow cylinder 143 and the ring 141 are pressed tightly to complete the height fixation;

[0049] Then adjust the telescopic length of the rectangular rod 2 161 in the rectangular rod 1 16, insert the fixing rod 162 and lock it with a nut to form a triangular support structure between the rectangular box 15, the retaining outer wall 1 and the lifting plate 3, thereby improving the overall anti-overturning ability;

[0050] When the humidity sensor 1501 detects that the ambient humidity exceeds a threshold value such as RH ≥ 85%, a start signal is sent to the drive motor 11, and the output shaft of the drive motor 11 drives the bevel gear 2 1101 to rotate, thereby driving the bidirectional screw 8 to rotate, and the threads of the bidirectional screw 8 drive the moving blocks 9 on both sides to move horizontally in opposite directions, stretching the high-elastic interception net 10 to increase the width of the drainage channel at the bottom of the device;

[0051] Rainwater flows into the water collecting funnel 201 through the telescopic frame 202, impacts the drainage fan 401 along the inclined drainage channel 2011, and drives the rotating rod 4 to rotate. The rotating rod 4 drives the T-shaped column 4021 to rotate through the connecting rod 402. The T-shaped column 4021 cooperates with the waist-shaped groove 5011 of the connecting rod 2 501 to convert the rotational motion into a horizontal reciprocating swing of the connecting rod 2 501. The connecting rod 2 501 drives the rotating rod 2 5 to swing, and the swing is transmitted to the rotating rod 3 6 through the synchronous belt 7, driving the conical column 6011 at the end of the connecting rod 3 601 to periodically scrape the surface of the interception net 10 to remove attached mud and debris.

[0052] 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.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil and water loss prevention device for red-yellow soil farmland in the south, comprising an outer retaining wall (1), characterized in that: A retaining inner wall (2) is fixedly mounted on one side of the retaining outer wall (1), a telescopic frame (202) is fixedly mounted on the top of the retaining inner wall (2), a rectangular box (15) is fixedly mounted on the bottom of the other side of the retaining outer wall (1), a lifting plate (3) is slidably mounted on the inner wall of the retaining outer wall (1), a water collecting funnel (201) is fixedly mounted inside the retaining inner wall (2), two drainage channels (2011) are fixedly mounted on the bottom of the water collecting funnel (201), and dredging mechanisms are respectively arranged at the bottom of the two drainage channels (2011), an adjusting mechanism is arranged inside the retaining outer wall (1), and a lifting mechanism is fixedly mounted on the outer wall of the retaining outer wall (1); The dredging mechanism comprises a rotating rod (4) rotatably mounted on the inner wall of the drainage channel (2011); a plurality of drainage fans (401) are fixedly mounted at equal distances on the outer wall of the rotating rod (4); one end of the rotating rod (4) extends out of the drainage channel (2011); a connecting rod (402) is fixedly sleeved on the outer wall of the rotating rod (4); a T-shaped column (4021) is fixedly mounted on one side of the connecting rod (402); a rotating rod (5) is rotatably mounted inside the retaining inner wall (2); a connecting rod (501) is fixedly sleeved on the outer wall of the rotating rod (5); A waist-shaped groove (5011) is provided on the outer wall of the second rod (501), the T-shaped column (4021) penetrates the waist-shaped groove (5011) and is movably connected to the waist-shaped groove (5011), a rotating rod (6) is rotatably installed on the inner wall of the retaining outer wall (1), one end of the rotating rod (6) extends into the retaining inner wall (2), the rotating rod (6) and the second rod (5) are both connected by a synchronous belt (7), a connecting rod (601) is fixedly sleeved on the outer wall of the rotating rod (6), and a plurality of conical columns (6011) are fixedly installed on the outer wall of the connecting rod (601).

2. The device for preventing and controlling soil erosion in red and yellow soil farmland in the south according to claim 1, characterized in that: The adjustment mechanism comprises a bidirectional screw (8) rotatably mounted on the inner wall at the bottom of the retaining outer wall (1); two moving blocks (9) are threadedly mounted on the outer wall of the bidirectional screw (8); an interception net (10) is fixedly mounted on one side of the two moving blocks (9) close to each other; rectangular corrugated sleeves (901) are respectively fixedly mounted on the other sides of the two moving blocks (9); the two rectangular corrugated sleeves (901) are both fixedly connected to the retaining outer wall (1); and a bevel gear 1 (801) is fixedly mounted on the outer wall of the middle portion of the bidirectional screw (8).

3. The device for preventing and controlling soil erosion in red and yellow soil farmland in the south according to claim 2, characterized in that: A limiting sliding rod (81) is fixedly mounted on the inner wall at the bottom of the retaining outer wall (1); the limiting sliding rod (81) passes through the two moving blocks (9) and is slidably connected to the two moving blocks (9).

4. The device for preventing and controlling soil erosion in red-yellow soil farmland in the south according to claim 2, characterized in that: The rectangular box (15) is designed as a hollow cavity. A driving motor (11) is fixedly mounted on the inner wall of the bottom of the rectangular box (15). The output shaft of the driving motor (11) extends into the retaining outer wall (1). A second bevel gear (1101) is fixedly mounted on the output shaft of the driving motor (11). The second bevel gear (1101) is meshed with a first bevel gear (801).

5. The device for preventing and controlling soil erosion in red-yellow soil farmland in the south according to claim 1, characterized in that: Two rectangular rods 1 (16) are hingedly mounted on the top of the rectangular box (15), and two rectangular rods 2 (161) are hingedly mounted on the outer wall of the lifting plate (3). The two rectangular rods 2 (161) are slidably connected to the corresponding rectangular rods 1 (16) respectively, and the two rectangular rods 1 (16) and the two rectangular rods 2 (161) are fixedly connected to the fixing rod (162) through nuts.

6. The device for preventing and controlling soil erosion in red and yellow soil farmland in the south according to claim 1, characterized in that: Two groups of identical insertion components are arranged below the retaining outer wall (1) and the rectangular box (15), and the insertion components include two insertion nails (101). The outer walls of the two insertion nails (101) are respectively provided with threaded rings (1011). The bottom ends of the two insertion nails (101) are respectively fixedly mounted with conical tips (1012). The two insertion nails (101) are fixedly connected via a Z-shaped connecting rod (1013), wherein one of the insertion nails (101) is fixedly connected to the bottom of the retaining outer wall (1), and the top of the other insertion nail (101) extends to the rectangular box (15) and is fixedly connected to the rectangular box (15) via a nut.

7. The device for preventing and controlling soil erosion in red-yellow soil farmland in the south according to claim 1, characterized in that: A humidity sensor (1501) and a photovoltaic panel (1502) are fixedly mounted on the top of the rectangular box (15), and the photovoltaic panel (1502) is installed in an inclined state.

8. The device for preventing and controlling soil erosion in red-yellow soil farmland in the south according to claim 1, characterized in that: The lifting mechanism comprises a support frame (12) fixedly mounted on the outer wall of the retaining outer wall (1); two groups of identical lifting components are arranged on the top of the support frame (12); the lifting components comprise a cylindrical barrel (13) fixedly mounted on the top of the support frame (12); a cylindrical rod (14) is arranged inside the cylindrical barrel (13); the cylindrical rod (14) passes through the lifting plate (3) and is rotatably connected to the lifting plate (3); a thread groove (1401) is provided on the outer wall of the cylindrical rod (14); a hollow cylinder (143) is slidably mounted on the inner wall of the cylindrical barrel (13); a second protrusion (144) is fixedly mounted on the inner wall of the hollow cylinder (143); the second protrusion (144) is slidably connected to the thread groove (1401).

9. The device for preventing and controlling soil erosion in red-yellow soil farmland in the south according to claim 8, characterized in that: The inner wall of the cylindrical barrel (13) is provided with a plurality of limiting grooves (1301) from top to bottom, and the plurality of limiting grooves (1301) are designed to be equidistant.

10. The device for preventing and controlling soil erosion in red and yellow soil farmland in the south according to claim 9, characterized in that: A circular ring (141) is fixedly sleeved on the outer wall of the cylindrical rod (14), and two protrusions (142) are fixedly installed on the outer wall of the circular ring (141), and the two protrusions (142) are matched with corresponding limiting grooves (1301).

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