Bentonite-based water and soil moisturizing and covering device

Abstract

The utility model discloses a bentonite-based water and soil moisturizing and covering device, which comprises a bentonite foundation, the disassembly and assembly separation structure is arranged at the top of the bentonite foundation, the disassembly and assembly separation structure comprises a rectangular pit hole, the rectangular pit hole is formed in the top of the bentonite foundation, and a separation batten is connected to the inner wall of the rectangular pit hole in a clamped mode; according to the bentonite adding device, the separation structure and the mixed covering structure can be disassembled and assembled, different covering filter screens can be rotated and opened according to the actual loss amount in the bentonite adding process, then adjustment can be carried out according to the actual situation, and the bentonite adding device is convenient to use and high in practicability. And meanwhile, under the action of a rectangular sliding frame, a rectangular sliding block and other components, an auxiliary connecting plate and a dredging rod at the bottom can be driven to move, and then bentonite and round soil in the bentonite mixing pit can be mixed.

Description

Technical Field

[0001] This utility model relates to the technical field of moisture-retaining covering devices, specifically a bentonite-based soil and water moisture-retaining covering device. Background Technology

[0002] Bentonite, also known as bentonite rock, soap clay, or bentonite rock, is a non-metallic mineral with montmorillonite as its main mineral component. Montmorillonite has a 2:1 crystal structure consisting of two silicon-oxygen tetrahedra sandwiching a layer of aluminum-oxygen octahedra. Due to the presence of certain cations in the layered structure formed by montmorillonite cells, and the unstable interaction between these cations and the montmorillonite cells, they are easily exchanged by other cations, thus exhibiting good ion exchange properties. Because of its good adsorption and swelling properties, bentonite is often used as a foundation material.

[0003] Considering that bentonite foundations need to play a role in soil and water conservation in designated areas during use, and thus can retain moisture and cover the soil, some bentonite foundation soil and water retention covering devices with special structures and functions can be applied.

[0004] Traditional soil and water retention covering devices typically involve excavating a pre-buried pit and constructing fencing on both sides of the pit. Bentonite is then placed inside the pit, and a mesh screen is placed on top to retain moisture and prevent severe soil erosion. However, in practice, some bentonite is lost due to rainwater, leading to a reduction in the amount of bentonite and consequently, decreased moisture retention. Furthermore, adding bentonite requires disassembling and re-covering the entire mesh screen, which is typically a single, large piece requiring multiple people to work together, making replacement inconvenient. Additionally, the newly added bentonite cannot mix with the original soil, easily forming a separate layer on the surface. This layer is easily washed away by rainwater, further reducing the moisture retention of the underlying soil.

[0005] In summary, a bentonite-based soil and water retention covering device is needed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a bentonite-based soil and water retention covering device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A bentonite-based soil and water retention covering device includes:

[0009] Bentonite foundation;

[0010] A disassembly and assembly separation structure is provided on the top of the bentonite foundation. The disassembly and assembly separation structure includes a rectangular pit, which is opened on the top of the bentonite foundation. A separation strip is snapped into the inner wall of the rectangular pit.

[0011] A hybrid covering structure is disposed on one side of a partition strip. The hybrid covering structure includes a rectangular sliding frame. One side of the outer surface of the rectangular sliding frame is fixedly connected to the outer surface of the partition strip. A plurality of rectangular sliders are slidably connected to the inner wall of the rectangular sliding frame. A connecting round rod is fixedly connected between the plurality of rectangular sliders.

[0012] An auxiliary shielding structure, the auxiliary shielding structure including an L-shaped shielding plate, wherein an L-shaped through groove is formed on the inner wall of the L-shaped shielding plate;

[0013] A bentonite mixing pit, wherein the bentonite mixing pit is located on top of a bentonite foundation.

[0014] Preferably, the disassembly and assembly separation structure further includes a first fixing hole formed in the inner wall of the separation strip, a fixing cylinder fixedly connected to the bottom of the separation strip, a second fixing hole provided in the inner wall of the rectangular pit, the fixing cylinder inserted into the inner wall of the second fixing hole, and a third fixing hole provided in the inner wall of the second fixing hole.

[0015] Preferably, a fixed cylindrical rod is inserted into the inner wall of the fixed cylinder, a spiral blade rod is fixedly connected to the bottom end of the fixed cylindrical rod, an operating block is fixedly connected to the top of the fixed cylindrical rod, and the spiral blade rod is disposed on the inner wall of the third fixed hole.

[0016] Preferably, the hybrid covering structure further includes a rectangular through hole formed on the inner wall of the top of the rectangular sliding frame, a sliding rod fixedly connected to the top of the outer surface of the rectangular slider, the sliding rod being slidably disposed on the inner wall of the rectangular sliding frame, a rectangular block fixedly connected to the top of the sliding rod, a first screw hole formed on the inner wall of the rectangular block, a second screw hole formed on the top of the partition plate, and a first threaded locking rod formed on the inner wall of the first screw hole and the second screw hole.

[0017] Preferably, a rectangular frame is fixedly connected to one side of the outer surface of the rectangular slider, a rectangular block is engaged with the inner wall of the rectangular frame, a third screw hole is provided on the inner wall of the rectangular frame, a fourth screw hole is provided on the inner wall of the rectangular block, and a second threaded rod is threadedly connected to the inner walls of the third screw hole and the fourth screw hole.

[0018] Preferably, an auxiliary connecting plate is fixedly connected to the bottom of the outer surface of the rectangular card block, an auxiliary groove is provided on one side of the auxiliary connecting plate, an auxiliary rotating rod is rotatably connected to the inner wall of the auxiliary groove, a rotating block is fixedly connected to the outer surface of the auxiliary rotating rod, and a cover filter is fixedly connected to the outer surface of the rotating block.

[0019] Preferably, one end of the auxiliary rotating rod passes through the auxiliary connecting plate and is fixedly connected to an operating round block. The inner wall of the operating round block is threaded with a third threaded clamping rod. A fifth screw hole is opened on one side of the inner wall of the auxiliary connecting plate. There are two fifth screw holes, which are located on one side and the bottom of the auxiliary rotating rod, respectively.

[0020] Preferably, the auxiliary shielding structure further includes a plurality of guide rods fixedly connected to the bottom of the auxiliary connecting plate, the plurality of guide rods being arranged at equal intervals at the bottom of the auxiliary connecting plate, and auxiliary protrusions being fixedly connected to the outer surface of the guide rods.

[0021] Preferably, a rectangular locking frame is fixedly connected to one side of the outer surface of the auxiliary connecting plate, a rectangular locking block is locked to the inner wall of the rectangular locking frame, and the outer surface of the rectangular locking block is fixedly connected to one side of the outer surface of the L-shaped baffle.

[0022] Preferably, the top inner wall of the rectangular card slot frame is provided with a sixth screw hole, the top inner wall of the rectangular card slot block is provided with a seventh screw hole, and the inner walls of the sixth and seventh screw holes are threadedly connected with a fourth threaded locking rod.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can disassemble and assemble the separation structure and the mixing and covering structure. During the process of adding bentonite, different covering filters can be rotated and lifted according to the actual loss, and then adjusted according to the actual situation. This avoids the inconvenience of replacement due to the large area when disassembling the whole. At the same time, under the action of rectangular sliding frame and rectangular slider, the auxiliary connecting plate and the bottom guide rod can be driven to move, thereby mixing the bentonite and round soil inside the bentonite mixing pit. At the same time, under the action of L-shaped baffle, the loss of bentonite can be partially blocked, and impurities in different positions can be further blocked, thereby preventing excessive accumulation of debris at the bottom and affecting the soil quality at the bottom. Attached Figure Description

[0024] Figure 1 To illustrate the overall structure of the bentonite-based soil and water retention covering device;

[0025] Figure 2 This is a schematic diagram showing the connection between the auxiliary shielding structure and the mixed covering structure of the bentonite-based soil and water retention covering device;

[0026] Figure 3 This is a schematic diagram of the structure at the partition strip of the bentonite-based soil and water retention covering device;

[0027] Figure 4 This is a schematic diagram of the rectangular block structure of the bentonite-based soil and water retention covering device;

[0028] Figure 5 This is a schematic diagram of the structure at the fixed round rod of the bentonite-based soil and water retention covering device;

[0029] Figure 6 This is a schematic diagram showing the structure of the bentonite-based soil and water retention covering device covering the filter screen.

[0030] Figure 7 To illustrate the structural schematic diagram of the guide rod of the bentonite-based soil and water retention covering device;

[0031] Figure 8 To demonstrate a bentonite-based soil and water retention covering device Figure 7 Enlarged view of point A in the middle;

[0032] Figure 9 This is a schematic diagram of the bentonite-based soil and water retention covering device at the bentonite foundation.

[0033] Figure 10 This is a schematic diagram of the structure of the L-shaped shielding plate of the bentonite-based soil and water retention covering device.

[0034] Figure 11 To demonstrate a bentonite-based soil and water retention covering device Figure 3 Enlarged view of section B in the middle.

[0035] In the picture:

[0036] 1. Bentonite foundation;

[0037] 2. Disassembly and assembly of the partition structure; 21. Rectangular pit; 22. Partition strip; 23. First fixing hole; 24. Second fixing hole; 25. Third fixing hole; 26. Fixing round rod; 27. Spiral blade rod; 28. Operating block; 29. ​​Fixing cylinder;

[0038] 3. Hybrid Cover Structure; 31. Rectangular Sliding Frame; 32. Rectangular Through Hole; 33. Rectangular Slider; 34. Rectangular Clip Frame; 35. Rectangular Clip Block; 36. Third Screw Hole; 37. Fourth Screw Hole; 38. Second Threaded Clip Rod; 39. Sliding Rod; 310. Rectangular Block; 311. First Screw Hole; 312. Second Screw Hole; 313. First Threaded Clip Rod; 314. Connecting Round Rod; 315. Auxiliary Connecting Plate; 316. Auxiliary Groove; 317. Auxiliary Rotating Rod; 318. Rotating Block; 319. Cover Filter Screen; 320. Operating Round Block; 321. Third Threaded Clip Rod; 322. Fifth Screw Hole;

[0039] 4. Auxiliary shielding structure; 41. Guide rod; 42. Auxiliary protruding rod; 43. Rectangular locking frame; 44. Sixth screw hole; 45. Seventh screw hole; 46. Fourth threaded locking rod; 47. L-shaped shielding plate; 48. L-shaped through groove; 49. Rectangular locking block;

[0040] 5. Bentonite mixing pit. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figures 1 to 11 This utility model provides a technical solution:

[0043] A bentonite-based soil and water retention covering device includes: a bentonite foundation 1; a disassembly and assembly separation structure 2, which is located on top of the bentonite foundation 1 and includes a rectangular pit 21. The rectangular pit 21 is located on top of the bentonite foundation 1, and a separation strip 22 is snapped onto the inner wall of the rectangular pit 21; a mixing covering structure 3, which is located on one side of the separation strip 22 and includes a rectangular sliding frame 31. One side of the outer surface of the rectangular sliding frame 31 is fixedly connected to the outer surface of the separation strip 22, and a plurality of rectangular sliders 33 are slidably connected to the inner wall of the rectangular sliding frame 31. A connecting round rod 314 is fixedly connected between the plurality of rectangular sliders 33; an auxiliary shielding structure 4, which includes an L-shaped shielding plate 47, and an L-shaped through groove 48 is opened on the inner wall of the L-shaped shielding plate 47; and a bentonite mixing pit 5, which is located on top of the bentonite foundation 1.

[0044] During the disassembly and assembly of the partition structure 2 and the mixing and covering structure 3, different covering filters 319 can be rotated and lifted according to the actual loss during the addition of bentonite. This allows for adjustment based on the actual situation, avoiding the inconvenience of replacement due to the large area during overall disassembly. Simultaneously, under the action of components such as the rectangular sliding frame 31 and the rectangular slider 33, the auxiliary connecting plate 315 and the bottom guide rod 41 can be moved, thereby mixing the bentonite and round soil inside the bentonite mixing pit 5. At the same time, under the action of the L-shaped baffle plate 47, the loss of bentonite can be partially blocked, and impurities in different locations can be further blocked, thereby preventing excessive accumulation of debris at the bottom and affecting the soil quality at the bottom.

[0045] refer to Figure 3 , Figure 4 and Figure 9The disassembly and assembly separation structure 2 also includes a first fixing hole 23 opened in the inner wall of the separation strip 22, a fixing cylinder 29 fixedly connected to the bottom of the separation strip 22, a second fixing hole 24 provided in the inner wall of the rectangular pit 21, the fixing cylinder 29 inserted into the inner wall of the second fixing hole 24, and a third fixing hole 25 provided in the inner wall of the second fixing hole 24.

[0046] By setting a fixed cylinder 29, it can be fixed in conjunction with the second fixed hole 24, etc., and can also be used in conjunction with the first fixed hole 23 and the third fixed hole 25 to assist in the operation of components such as the fixed rod 26, thereby assisting in the fixing of the partition strip 22.

[0047] refer to Figure 3 , Figure 5 and Figure 9 A fixed cylindrical rod 26 is inserted into the inner wall of the fixed cylindrical rod 29. A spiral blade rod 27 is fixedly connected to the bottom end of the fixed cylindrical rod 26. An operating block 28 is fixedly connected to the top of the fixed cylindrical rod 26. The spiral blade rod 27 is set in the inner wall of the third fixed hole 25.

[0048] By setting a fixed round rod 26, it can be inserted into the inner wall of the fixed cylinder 29, and then the spiral blade rod 27 can be rotated to assist in fixing it to the foundation. The second fixing hole 24 is a hole pre-drilled using a hole-making tool, while the third fixing hole 25 is a hole drilled by the spiral blade rod 27 as it moves downward during rotation.

[0049] refer to Figure 3 , Figure 4 and Figure 11 The hybrid covering structure 3 also includes a rectangular through hole 32 opened on the inner wall of the top of the rectangular slide frame 31, a sliding rod 39 fixedly connected to the top of the outer surface of the rectangular slider 33, the sliding rod 39 is slidably disposed on the inner wall of the rectangular slide frame 31, a rectangular block 310 fixedly connected to the top of the sliding rod 39, a first screw hole 311 opened on the inner wall of the rectangular block 310, a second screw hole 312 opened on the top of the partition strip 22, and a first threaded clamp 313 opened on the inner wall of the first screw hole 311 and the second screw hole 312;

[0050] By setting the first threaded clamp 313, it can cooperate with the first screw hole 311 and the second screw hole 312 to fix the rectangular block 310 and other components. The rectangular slider 33 can slide on the inner wall of the rectangular slide frame 31, and at the same time, it can drive the sliding rod 39 to slide on the inner wall of the rectangular through hole 32.

[0051] refer to Figure 4 and Figure 11A rectangular frame 34 is fixedly connected to one side of the outer surface of the rectangular slider 33. A rectangular block 35 is snapped into the inner wall of the rectangular frame 34. A third screw hole 36 is opened in the inner wall of the rectangular frame 34. A fourth screw hole 37 is opened in the inner wall of the rectangular block 35. A second threaded rod 38 is threadedly connected to the inner walls of the third screw hole 36 and the fourth screw hole 37.

[0052] By setting rectangular clips 35 and rectangular clip frames 34, the auxiliary connecting plate 315 can be fixed. At the same time, under the action of the second threaded clip 38, the rectangular clips 35 and rectangular clip frames 34 can be fixed in conjunction with the third screw hole 36 and the fourth screw hole 37.

[0053] refer to Figure 6 An auxiliary connecting plate 315 is fixedly connected to the bottom of the outer surface of the rectangular card block 35. An auxiliary groove 316 is provided on one side of the auxiliary connecting plate 315. An auxiliary rotating rod 317 is rotatably connected to the inner wall of the auxiliary groove 316. A rotating block 318 is fixedly connected to the outer surface of the auxiliary rotating rod 317. A cover filter screen 319 is fixedly connected to the outer surface of the rotating block 318.

[0054] By setting up auxiliary connecting plate 315 and auxiliary rotating rod 317, the rotating block 318 can be used to make the covering filter screen 319 rotate, thereby facilitating the addition of bentonite into the bentonite mixing pit 5.

[0055] refer to Figure 6 and Figure 8 One end of the auxiliary rotating rod 317 passes through the auxiliary connecting plate 315 and is fixedly connected to the operating round block 320. The inner wall of the operating round block 320 is threadedly connected to the third threaded clamp rod 321. A fifth screw hole 322 is opened on one side of the inner wall of the auxiliary connecting plate 315. There are two fifth screw holes 322, which are located on one side and the bottom of the auxiliary rotating rod 317 respectively.

[0056] By setting the third threaded locking rod 321, it can cooperate with the fifth threaded hole 322, thereby assisting in fixing the auxiliary rotating rod 317, so that the auxiliary rotating rod 317 can fix the rotating block 318 and the cover filter screen 319.

[0057] refer to Figure 1 and Figure 7 The auxiliary shielding structure 4 also includes several guide rods 41 fixedly connected to the bottom of the auxiliary connecting plate 315. The several guide rods 41 are arranged at equal intervals at the bottom of the auxiliary connecting plate 315, and auxiliary protrusions 42 are fixedly connected to the outer surface of the guide rods 41.

[0058] By setting the guide rod 41, the bentonite inside the bentonite mixing pit 5 can be mixed with the original soil under the sliding action of components such as the rectangular slider 33.

[0059] refer to Figure 7 and Figure 10 A rectangular locking frame 43 is fixedly connected to one side of the outer surface of the auxiliary connecting plate 315. A rectangular locking block 49 is locked to the inner wall of the rectangular locking frame 43. The outer surface of the rectangular locking block 49 is fixedly connected to one side of the outer surface of the L-shaped baffle plate 47.

[0060] By setting rectangular locking blocks 49 and rectangular locking frames 43, auxiliary connecting plates 315 and L-shaped baffle plates 47 can be assisted in disassembling and assembling.

[0061] refer to Figure 7 and Figure 10 The top inner wall of the rectangular card slot frame 43 is provided with a sixth screw hole 44, and the top inner wall of the rectangular card slot block 49 is provided with a seventh screw hole 45. The inner walls of the sixth screw hole 44 and the seventh screw hole 45 are threadedly connected with a fourth threaded locking rod 46.

[0062] By setting the fourth threaded locking rod 46, it can cooperate with the sixth screw hole 44 and the seventh screw hole 45, thereby providing auxiliary fixation for the rectangular locking frame 43 and the rectangular locking block 49.

[0063] The overall working principle is as follows:

[0064] In use, the partition strip 22 is snapped and fixed to the rectangular pit 21. At this time, the fixing cylinder 29 can be fixed with the second fixing hole 24. At the same time, the fixing cylinder 29 can be inserted into the inner wall of the first fixing hole 23 and the fixing cylinder 29. Then, the operating block 28 is rotated so that the spiral blade rod 27 can drill the third fixing hole 25 on the inner wall of the bentonite foundation 1.

[0065] At this time, the rectangular card block 35 is inserted into the inner wall of the rectangular card frame 34, the second threaded card rod 38 is inserted into the inner wall of the third screw hole 36 and the fourth screw hole 37, the rectangular card frame 43 is inserted into the inner wall of the rectangular card block 49, and then the fourth threaded card rod 46 is inserted into the inner wall of the sixth screw hole 44 and the seventh screw hole 45, so that the L-shaped baffle plate 47 can be fixed.

[0066] At this time, the L-shaped baffle 47 can intercept external impurities, so that the upstream garbage will not all accumulate at the bottom.

[0067] When it is necessary to add bentonite, the third threaded rod 321 is separated from the fifth threaded hole 322, and the cover filter 319 can be rotated to mix the inside of the bentonite mixing pit 5.

[0068] At this time, the first threaded clamp 313 is separated from the first threaded hole 311 and the second threaded hole 312. Then, the rectangular block 310 is pushed so that the sliding rod 39 can slide on the inner wall of the rectangular through hole 32, which in turn can drive the rectangular slider 33 to slide on the inner wall of the rectangular sliding frame 31, which in turn can drive the guide rod 41 and other components to move, thereby assisting in the mixing of bentonite inside the bentonite mixing pit 5.

[0069] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bentonite-based soil and water retention covering device, characterized in that, include: Bentonite foundation (1); The disassembly and assembly separation structure (2) is set on the top of the bentonite foundation (1). The disassembly and assembly separation structure (2) includes a rectangular pit (21). The rectangular pit (21) is opened on the top of the bentonite foundation (1). The inner wall of the rectangular pit (21) is fitted with a partition strip (22). A hybrid covering structure (3) is provided on one side of the partition strip (22). The hybrid covering structure (3) includes a rectangular sliding frame (31). One side of the outer surface of the rectangular sliding frame (31) is fixedly connected to the outer surface of the partition strip (22). A plurality of rectangular sliders (33) are slidably connected to the inner wall of the rectangular sliding frame (31). A connecting round rod (314) is fixedly connected between the plurality of rectangular sliders (33). An auxiliary shielding structure (4) is provided, which includes an L-shaped shielding plate (47) and an L-shaped through groove (48) is provided on the inner wall of the L-shaped shielding plate (47). A bentonite mixing pit (5) is provided on top of a bentonite foundation (1).

2. The bentonite-based soil and water retention covering device according to claim 1, characterized in that: The disassembly and assembly separation structure (2) also includes a first fixing hole (23) opened on the inner wall of the separation strip (22), a fixing cylinder (29) is fixedly connected to the bottom of the separation strip (22), a second fixing hole (24) is provided on the inner wall of the rectangular pit (21), the fixing cylinder (29) is inserted into the inner wall of the second fixing hole (24), and a third fixing hole (25) is provided on the inner wall of the second fixing hole (24).

3. The bentonite-based soil and water retention covering device according to claim 2, characterized in that: A fixed cylindrical rod (26) is inserted into the inner wall of the fixed cylindrical rod (29). A spiral blade rod (27) is fixedly connected to the bottom end of the fixed cylindrical rod (26). An operating block (28) is fixedly connected to the top of the fixed cylindrical rod (26). The spiral blade rod (27) is located on the inner wall of the third fixed hole (25).

4. The bentonite-based soil and water retention covering device according to claim 1, characterized in that: The hybrid cover structure (3) also includes a rectangular through hole (32) on the inner wall of the top of the rectangular slide frame (31). A sliding rod (39) is fixedly connected to the top of the outer surface of the rectangular slider (33). The sliding rod (39) is slidably disposed on the inner wall of the rectangular slide frame (31). A rectangular block (310) is fixedly connected to the top of the sliding rod (39). A first screw hole (311) is provided on the inner wall of the rectangular block (310). A second screw hole (312) is provided on the top of the partition strip (22). A first threaded clamp (313) is provided on the inner wall of the first screw hole (311) and the second screw hole (312).

5. A bentonite-based soil and water retention covering device according to claim 1, characterized in that: A rectangular frame (34) is fixedly connected to one side of the outer surface of the rectangular slider (33). A rectangular block (35) is snapped into the inner wall of the rectangular frame (34). A third screw hole (36) is opened in the inner wall of the rectangular frame (34). A fourth screw hole (37) is opened in the inner wall of the rectangular block (35). A second threaded rod (38) is threadedly connected to the inner walls of the third screw hole (36) and the fourth screw hole (37).

6. A bentonite-based soil and water retention covering device according to claim 5, characterized in that: An auxiliary connecting plate (315) is fixedly connected to the bottom of the outer surface of the rectangular card block (35). An auxiliary groove (316) is provided on one side of the auxiliary connecting plate (315). An auxiliary rotating rod (317) is rotatably connected to the inner wall of the auxiliary groove (316). A rotating block (318) is fixedly connected to the outer surface of the auxiliary rotating rod (317). A cover filter screen (319) is fixedly connected to the outer surface of the rotating block (318).

7. A bentonite-based soil and water retention covering device according to claim 6, characterized in that: One end of the auxiliary rotating rod (317) passes through the auxiliary connecting plate (315) and is fixedly connected to the operating round block (320). The inner wall of the operating round block (320) is threaded with a third threaded clamp rod (321). A fifth screw hole (322) is opened on one side of the inner wall of the auxiliary connecting plate (315). There are two fifth screw holes (322), which are located on one side and the bottom of the auxiliary rotating rod (317), respectively.

8. A bentonite-based soil and water retention covering device according to claim 6, characterized in that: The auxiliary shielding structure (4) also includes a number of guide rods (41) fixedly connected to the bottom of the auxiliary connecting plate (315). The number of guide rods (41) are arranged at equal intervals at the bottom of the auxiliary connecting plate (315), and auxiliary protrusions (42) are fixedly connected to the outer surface of the guide rods (41).

9. A bentonite-based soil and water retention covering device according to claim 6, characterized in that: A rectangular locking frame (43) is fixedly connected to one side of the outer surface of the auxiliary connecting plate (315). A rectangular locking block (49) is locked to the inner wall of the rectangular locking frame (43). The outer surface of the rectangular locking block (49) is fixedly connected to one side of the outer surface of the L-shaped shield (47).

10. A bentonite-based soil and water retention covering device according to claim 9, characterized in that: The top inner wall of the rectangular card slot frame (43) is provided with a sixth screw hole (44), and the top inner wall of the rectangular card slot block (49) is provided with a seventh screw hole (45). The inner walls of the sixth screw hole (44) and the seventh screw hole (45) are threadedly connected with a fourth threaded clamping rod (46).

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