Sand blocking device for water and soil conservation

Abstract

The invention discloses a sand blocking device for water and soil conservation, and belongs to the technical field of water conservancy projects. The mounting bottom plate is fixed at the bottom of a river channel during use; the connecting base is arranged on the mounting bottom plate, and a connecting cavity is formed in the upper part of the connecting base; the lower side edge of the mounting vertical plate frame is connected with the connecting cavity; the swinging vertical plate frame is rotationally connected to the left side or the right side of the connecting base; wherein the left end or the right end of the connecting base is provided with a fixed connecting part, the swinging vertical plate frame is provided with a rotary connecting part connected with the connecting part, and the rotary connecting part is fixedly connected with the fixed connecting part through a bolt rod. By means of the sand blocking device, the adaptability of the whole sand blocking device is improved, the sand blocking device can adapt to a river channel with the rectangular section and can also adapt to a river channel with the trapezoidal section, and the situation that flow blocking areas appear on the two sides of the river channel when the sand blocking device is applied to the trapezoidal river channel can be avoided.

Description

Technical Field

[0001] This invention relates to a sand-trapping device for soil and water conservation, belonging to the field of water conservancy engineering technology. Background Technology

[0002] Based on the different main forces causing soil erosion, there are three main types of soil erosion: water erosion, wind erosion, and freeze-thaw erosion. Among them, water erosion refers to the process of soil and its parent material or other ground components being destroyed, eroded, transported, and deposited under the influence of rainfall, runoff, and other factors.

[0003] Currently, water erosion mainly occurs in geographical environments such as river basins. For prevention and control in these areas, sand-trapping barriers are often used for soil and water conservation. Patent CN202111628629.7 discloses a sand-trapping device for soil and water conservation based on water conservancy engineering. It includes an installation frame with a first base plate on one side and a second base plate on the other side, and a sand-trapping mesh plate inside the frame. It utilizes connecting and adjusting components to support the installation frame, reducing the impact of silt on the frame. Simultaneously, the sand-trapping mesh plate can be replaced, and the diameter of the intercepted fine sand can be adjusted.

[0004] However, since the cross-section of the river channel is usually trapezoidal and the slope of the river channel on both sides of different rivers is different, the sand-blocking devices in the above-mentioned prior art usually need to be used in conjunction with the river gate, which is not adaptable enough. This results in the triangular area formed between the two sides of the river channel and the sand-blocking plate becoming a flow obstruction area, reducing the water flow velocity in the river channel and increasing the water flow velocity and pressure in the middle area. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a sand-blocking device for soil and water conservation, which solves the problem of insufficient adaptability of sand-blocking devices in the prior art.

[0006] The technical problem to be solved by the present invention is achieved by the following technical solution: a sand-blocking device for soil and water conservation, including a mounting base plate, which is fixed to the bottom of the river channel during use; A connecting base is disposed on the mounting base plate, and a connecting cavity is provided on the upper part of the connecting base; The mounting frame is installed, and the lower side of the mounting frame is connected to the connecting cavity; The swing-up upright frame is rotatably connected to the left or right side of the connecting base; The connecting base has a fixed connecting part at its left or right end, and the swing upright frame has a rotating connecting part connected to the connecting part. The rotating connecting part and the fixed connecting part are fixedly connected by bolts.

[0007] By adopting the above technical solution, the adaptability of the entire sediment-trapping device is greatly improved, enabling it to be used in both rectangular and trapezoidal river channels. This avoids the obstruction of flow on both sides of the river when the device is applied to trapezoidal channels. By adjusting the installation angle of the swing-type vertical frame, it can be made to fit snugly against the side walls of the river. When applied to trapezoidal channels, the fan-shaped area formed by the fit between the swing-type vertical frame and the river's sides replaces the conventional gate, allowing water to flow smoothly through the swing-type vertical frame area on both sides. This reduces the obstruction of the water flow by the entire sediment-trapping device, achieving both a good sediment-trapping effect and minimizing its impact on the river channel.

[0008] The invention is further configured such that the swing upright frame is fan-shaped as a whole, and its rotating connection part is located at the center of the fan shape.

[0009] By adopting the above technical solution and setting the swing-type upright frame in a fan-shaped structure, the fit between the swing-type upright frame and the riverbank walls on both sides can be improved, thus enhancing the sediment retention effect on both sides of the river. Furthermore, the fan-shaped structure allows for rotation around the center of the fan, making angle adjustment of the swing-type upright frame more convenient and preventing center of gravity shift during the adjustment process.

[0010] The present invention is further configured such that: the arc-shaped edge of the swing upright frame is provided with an arc-shaped groove, and connecting blocks are provided on both sides of the mounting upright frame; the connecting blocks are hollow in the middle and are provided with connecting elements connected to the arc-shaped groove; the connecting elements slide relative to the arc-shaped groove when the swing upright frame swings.

[0011] By adopting the above technical solution, the connection between the upper arc-shaped edge of the swing upright frame and the mounting upright frame can be improved, preventing significant swaying of the upper part of the swing upright frame relative to the mounting upright frame when it is impacted. Simultaneously, during adjustment of the swing upright frame, its upper arc-shaped edge remains connected to the mounting upright frame, thereby reducing the risk of detachment between the two frames.

[0012] The present invention is further configured such that: the cross-section of the connecting cavity is circular and the upper part is provided with an opening width smaller than the diameter of the connecting cavity; one side of the mounting plate frame is a connecting side with a circular cross-section and the connecting side is rotatably inserted into the connecting cavity.

[0013] By adopting the above technical solution, the mounting frame can swing slightly relative to the connecting base, thereby coping with the different flow states of rivers in different channels, reducing the internal stress intensity generated when the entire mounting frame is impacted, and improving the maximum impact strength of the mounting frame.

[0014] The present invention is further configured such that: a sliding rod is provided on the mounting base plate, a base spring is sleeved on the sliding rod, and a sliding element is provided in the middle of the base spring that slides along the sliding rod; an adjusting rod is rotatably connected to the sliding element, and the other end of the adjusting rod is rotatably connected to the mounting upright frame.

[0015] By adopting the above technical solution, and considering the characteristic that the mounting frame can swing slightly relative to the connecting base, the maximum impact strength of the mounting frame can be further improved. After the mounting frame is connected to the connecting base via the adjusting rod, when the mounting frame is impacted, the sliding element can slide relative to the sliding rod by adjusting the left and right sides of the connection, thereby compressing or stretching the base spring. Through the compression or stretching of the base spring, the impact force on the mounting frame is buffered.

[0016] The present invention is further configured such that: connecting grooves are provided on both sides of the mounting plate frame, a buffer assembly is provided in the connecting groove, and the adjusting rod is rotatably connected to the buffer assembly.

[0017] By adopting the above technical solution, the buffering effect is further improved. The buffer component is set on the mounting plate frame, so that during the swinging process, both ends of the adjusting rod can slide along the sliding rod or the connecting groove with the turbulence in the river channel, thereby maximizing the transmission of the force on the adjusting rod to the base spring and the buffer component.

[0018] The present invention is further configured such that: the buffer assembly includes a buffer rod, a vertical plate spring is sleeved on the buffer rod, a sliding element two is provided in the middle of the vertical plate spring that can slide along the buffer rod, and the adjusting rod is rotatably connected to the sliding element.

[0019] By adopting the above technical solution, the upright spring, as the main buffer element of the buffer assembly, can compress or stretch when the upright frame swings slightly after being impacted, and immediately relieve the force on the upright frame. Together with the base spring set on the mounting base plate, a stable triangular support structure can be formed. At the same time, the upright spring and the base spring serve as two right-angled sides of the triangular structure, improving the buffering effect.

[0020] The present invention is further configured such that: one or both sides of the swing upright frame are provided with a snap-fit ​​groove, the swing upright frame is connected to a fan-shaped frame through the snap-fit ​​groove, one side of the fan-shaped frame is provided with a snap-fit ​​groove, and the other side is provided with a snap-fit ​​block that snaps into the snap-fit ​​groove.

[0021] By adopting the above technical solution and adding a fan-shaped frame, the adaptability of the entire sand-blocking device can be improved, so that when the area of ​​the swing upright frame is insufficient, it can be supplemented by the fan-shaped frame.

[0022] The present invention is further configured such that an abutment ring is provided between the rotating connecting part and the fixed connecting part.

[0023] By adopting the above technical solution, the abutment ring can increase the friction between the rotating connection part and the fixed connection part, so that after the swing plate frame is installed, the relative sway between the connecting base can be reduced, the stability of the swing plate frame can be improved, and the swing plate frame can be prevented from detaching from the river side wall.

[0024] The present invention is further configured such that both the swing upright frame and the mounting upright frame are provided with sand-blocking nets, and the sand-blocking nets are provided with multiple specifications according to the size of the filter holes.

[0025] By adopting the above technical solutions, the adaptability of the sand-blocking device can be improved, enabling the sand-blocking device to be equipped with filter screens of different pore sizes according to specific needs.

[0026] The beneficial effects of this invention are: By using a swing-type vertical frame in conjunction with the mounting frame, the entire sediment-trapping device can effectively trap sediment in rivers with different cross-sections, demonstrating high adaptability. When applied to trapezoidal rivers, the swing-type vertical frame can be adjusted to rotate towards both sides of the mounting frame, filling the gaps between the vertical sides of the mounting frame and the riverbanks of the trapezoidal cross-section. This allows sediment trapping while still allowing water flow through these gaps. Adjusting the angle of the swing-type vertical frame allows the sediment-trapping device to adapt to rivers with varying sidewall inclination angles. During use, the device does not require installation with a river gate, further enhancing its overall adaptability and preventing flow obstruction on trapezoidal cross-sections, minimizing its impact on the overall river flow velocity.

[0027] By connecting the mounting plate frame to the base, and with the addition of a buffer assembly and base spring, the mounting plate frame can swing slightly when impacted by water. This swinging motion transmits the impact force to the base spring and buffer assembly, thus providing a buffering effect and increasing the maximum impact strength of the mounting plate frame. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the mounting base and connecting base of the present invention; Figure 3 This is an exploded structural diagram of the mounting frame and the swinging frame of the present invention. Figure 4 This is a three-dimensional structural diagram of the mounting frame and connecting base of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the sector-shaped frame of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the growth frame of the present invention.

[0029] In the diagram: 1. Mounting base plate; 2. Connecting base; 201. Fixed connecting part; 202. Connecting cavity; 3. Mounting upright frame; 301. Connecting slide groove; 302. Connecting block; 303. Connecting element; 304. Connecting side; 4. Sand-blocking net; 5. Swinging upright frame; 501. Rotating connecting part; 502. Arc groove; 503. Snap-fit ​​groove; 6. Bolt rod; 7. Buffer assembly; 701. Buffer rod; 702. Upright plate spring; 703. Sliding element two; 704, 705, 8. Sliding rod; 9. Base spring; 10. Sliding element one; 11. Adjusting rod; 12. Abutment ring; 13. Sector frame; 131. Locking block; 14. Insertion groove; 15. Connecting hole; 16. Push rod; 17. Snap-fit ​​pin. Detailed Implementation

[0030] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific illustrations.

[0031] like Figure 1 As shown, a sand-trapping device for soil and water conservation includes a mounting base plate 1, which is fixed to the bottom of the river channel during use. There are two mounting base plates 1, which are symmetrically arranged at the bottom of the river channel.

[0032] Two connecting bases 2 are symmetrically arranged on the mounting base 1. Each connecting base 2 has a connecting cavity 202 at its upper part. The connecting cavity 202 has a circular cross-section and an opening at its top with a width smaller than the diameter of the circular cross-section. A mounting frame 3 is mounted on the connecting base 2 through the connecting cavity 202, and a sand-trapping net 4 is mounted on the mounting frame 3. The lower side of the mounting frame 3 is connected to the connecting cavity 202. Specifically, a connecting side 304 with a circular cross-section is also provided on the lower side of the mounting frame 3. The diameter of the circular cross-section of the connecting side 3 is equal to the diameter of the circular cross-section of the connecting cavity 202. The connecting side 304 of the mounting frame 3 can fit into the connecting cavity 202 of the connecting base 2. This connection between the connecting base 2 and the mounting frame 3 allows the mounting frame 3 to sway slightly when impacted by water, thereby reducing the impact force.

[0033] A swing-type upright frame 5 is rotatably connected to the left or right end of the connecting base 2, and a sand-blocking net 4 is provided on the swing-type upright frame 5. A fixed connecting part 201 is provided at the left or right end of the connecting base 2, and a rotating connecting part 501 connected to the connecting part is provided on the swing-type upright frame 5. The rotating connecting part 501 and the fixed connecting part 201 are fixedly connected by bolts 6. A transition connector with the same cross-section as the connecting base 2 but without a fixed connecting part 201 at the end is provided between the two connecting bases 2. When the length of the two connecting bases 2 is insufficient and needs to be increased, multiple transition connectors can be spliced ​​between the two connecting bases 2 to lengthen the connecting base 2, thereby accommodating different widths of the mounting base 1.

[0034] Compared to traditional rectangular sand-blocking nets 4, this application, through the aforementioned swing-type vertical frame 5 and mounting vertical frame 3, allows the sand-blocking device to be applied to more different river channels. By adjusting the installation angle of the swing-type vertical frame 5, the sand-blocking device can achieve interception of the entire river channel cross-section. When applied to a river channel with a trapezoidal cross-section, the fan-shaped area formed by the swing-type vertical frame 5 fitting against the two sides of the river channel replaces the conventional gate, allowing the water flow in the river channel to pass smoothly through the swing-type vertical frame 5 areas on both sides, reducing the obstruction of the entire sand-blocking device to the water body.

[0035] Furthermore, such as Figure 3 As shown, the swing upright frame 5 is generally fan-shaped, with its rotating connection part 501 located at the center of the fan. By setting the swing upright frame 5 into a fan-shaped structure, the fit between the swing upright frame 5 and the riverbank walls on both sides can be improved, thus enhancing the sand-trapping effect on both sides of the river. Furthermore, the fan-shaped structure allows it to rotate around the center of the fan, making angle adjustment of the swing upright frame 5 more convenient and preventing center of gravity shift during the adjustment process.

[0036] It should be noted that, as Figure 1 and Figure 3 As shown, the mounting frame 3 can be formed by splicing two symmetrical mounting frames, or it can be a fixed-size frame that is not divided into parts.

[0037] When installing the vertical frame 3, as follows Figure 1 When the two symmetrical upright frames shown are spliced ​​together, the two sides of the extension frame are respectively provided with a snap-fit ​​groove 503 and a snap-fit ​​block 131. The extension frames are fixed to each other by snap-fitting the snap-fit ​​block 131 and the snap-fit ​​groove 503. In this embodiment, the overall width of the installation upright frame 3 can be adjusted in real time according to the actual width of the river channel.

[0038] Specifically, multiple extension frames can be set between the splicing surfaces of the upright frames, and the two upright frames are connected to the extension frames respectively, so that various lengths of installation upright frames 3 can be assembled, which greatly increases the sand-blocking area of ​​the sand-blocking device.

[0039] In other embodiments, multiple growth frames can be spliced ​​together to form the installation stand frame 3.

[0040] In this embodiment, the arc angle of the fan-shaped swing upright frame 5 is 30 degrees, and a snap-fit ​​groove 503 is provided on one or both sides of the swing upright frame 5. A fan-shaped frame 13 is provided through the snap-fit ​​groove 503, and the center of the fan-shaped circle of the fan-shaped frame 13 coincides with the center of the fan-shaped circle of the swing upright frame 5. The fan-shaped frame 13 is also provided with the same sand-blocking net 4 as the mounting upright frame 3 and the swing upright frame 5. Figure 5 As shown, the two sides of the sector frame 13 are respectively provided with the same snap-fit ​​groove 503 as the swing upright frame 5 and snap-fit ​​blocks 131 that snap into the snap-fit ​​groove 503. The sector center end of the sector frame 13 is provided with an arc surface. When the sector frame 13 is inserted into the swing upright frame 5, the arc surface abuts and fits against the outer circular surface of the movable connection part. By setting the sector frame 13, the sand-blocking surface of the sand-blocking device can be increased, thereby adapting to the river side wall with a larger inclination angle relative to the river bottom. In use, if the side of the swing upright frame 5 still cannot abut against the inclined surface on both sides of the river after adjusting to the maximum swing angle, a new sector frame 13 can be added on the side near the inclined surface of the river through the snap-fit ​​groove 503 and the snap-fit ​​block 131. Since the sector center of the sector frame 13 coincides with the sector center of the swing upright frame 5, the sector frame 13 can rotate synchronously with the swing upright frame 5 without interference.

[0041] Furthermore, based on the above embodiments, the curved edge of the swing upright frame 5 is provided with a curved groove 502, and the two sides of the mounting upright frame 3 are provided with connecting blocks 302. The middle of the connecting block 302 is hollow and is provided with a connecting element 303 connected to the curved groove 502. The connecting element 303 slides relative to the curved groove 502 when the swing upright frame 5 swings.

[0042] Since the water flow in a river is typically most rapid at the surface and relatively gentle near the bottom, an arc-shaped groove 502 is incorporated, and a connecting block 302 is used to connect the arc-shaped edge of the swing upright frame 5 to the mounting upright frame 3. This allows for a better connection between the upper part of the swing upright frame 5 and the mounting upright frame 3, preventing the impact force from being directly transferred to the movable connection part after the upper part of the swing upright frame 5 is subjected to impact. This improves the overall strength of the swing upright frame 5.

[0043] It should be noted that a buffer gap is reserved between the mounting frame 3 and the swinging frame 5. The connecting element 303 can be a bolt, with one end slidingly disposed in the arc-shaped groove 502 and the other end fixed in the connecting hole 15. When the mounting frame 3 is impacted by water, it can swing at a small angle with the undulating waves. The maximum swing distance is the size of the reserved gap between the mounting frame 3 and the swinging frame 5. This installation method makes the sand-trapping device more adaptable and suitable for river channels with harsher environments.

[0044] In other embodiments, when the sediment-trapping device is applied to a relatively calm river channel, the mounting frame 3 and the swinging frame 5 are fitted together without a buffer gap. In this case, the mounting frame 3 does not have the function of swinging back and forth with the water. This installation method makes the connection between the mounting frame 3 and the swinging frame 5 tighter, resulting in a better sediment-trapping effect.

[0045] like Figure 3 As shown, multiple rows of connecting holes 15 are equidistantly arranged on the mounting base plate 1, with at least three connecting holes 15 in each row, equidistantly arranged along the cross-sectional direction of the river channel on the mounting base plate 1. Furthermore, insertion grooves 14 are provided inside the mounting base plate 1 along the direction of each row of connecting holes 15, and connecting plates are inserted into the insertion grooves 14. Simultaneously, through holes with spacing equal to the spacing between the connecting holes 15 are provided on the connecting plates. After inserting both ends of the connecting plate into two mounting base plates 1 respectively, the through holes on the connecting plate are aligned with the through holes on the mounting base plate 1, and fixed with bolts or limit pins, thereby achieving the splicing of the two mounting base plates 1.

[0046] By using the splicing method described above for the mounting base plate 1, the two mounting base plates 1 can be stably connected. Furthermore, by adjusting the splicing distance between the two mounting base plates 1, the width of the mounting base plate 1 can be adjusted to adapt to river channels of different widths.

[0047] Furthermore, such as Figure 2 As shown, both the bottom of the connecting base 2 and the transition connector are provided with snap-fit ​​pins 17. The snap-fit ​​pins 17 are inserted into the connecting holes 15 on the mounting base plate 1 to achieve quick connection between the connecting base 2 and the mounting base plate 1.

[0048] In other embodiments, a through hole may be provided in the middle of the snap-fit ​​pin 17, with the upper opening of the through hole communicating with the connecting cavity 202. After inserting the snap-fit ​​pin 17 into the connecting hole 15, a bolt or other long nail or fixing rod is inserted from the through hole at the upper part of the snap-fit ​​pin 17 and inserted downwards into the ground at the bottom of the river channel, thus fixing the mounting base plate 1 and the connecting base 2 to the ground. Through the above structure, the mounting base plate 1 and the connecting base 2 can be installed quickly, improving installation efficiency. At the same time, due to the multiple insertions, the snap-fit ​​pin 17 is inserted into the connecting hole 15, and the bolt or long nail or fixing rod is inserted into the snap-fit ​​pin 17 and then into the bottom of the river channel, making the entire connection structure more stable and with higher overall impact resistance.

[0049] like Figure 1 and Figure 4 As shown, a sliding rod 7047058 is provided on the mounting base plate 1. A base spring 9 is sleeved on the sliding rod 7047058, and a sliding element 10 that slides along the sliding rod 7047058 is provided in the middle of the base spring 9. An adjusting rod 11 is rotatably connected to the sliding element 10, and the other end of the adjusting rod 11 is rotatably connected to the mounting upright frame 3.

[0050] The mounting frame 3 has connecting grooves 301 on both sides, and a buffer assembly 7 is provided in the connecting grooves 301. The adjusting rod 11 is rotatably connected to the buffer assembly 7. The buffer assembly 7 includes a buffer rod 701, on which a vertical plate spring 702 is sleeved. A sliding element 703 is provided in the middle of the vertical plate spring 702, which can slide along the buffer rod 701. The adjusting rod 11 is rotatably connected to the sliding element.

[0051] By employing a multi-layered buffer system to support the mounting frame 3, the impact force can be transferred to the base spring 9 or the vertical spring 702 via the adjusting rod 11 when the mounting frame 3 is subjected to impact, thereby achieving the purpose of force dissipation. The adjusting rod 11, together with the mounting frame 3 and the mounting base plate 1, forms a stable triangular support structure. The base spring 9 and the vertical spring 702 act as buffer sides, and the adjusting rod 11 acts as a bridge between the two buffer sides. This allows the impact force received by the entire mounting frame 3 to be transferred within this triangular support structure, gradually dissipating and offsetting the force through the base spring 9 and the vertical spring 702 during the transfer process. This improves the overall strength of the mounting frame 3, enabling the sand-trapping device to be applied in rivers with more rapid currents.

[0052] An abutment ring 12 is provided between the rotating connecting part 501 and the fixed connecting part 201. The abutment ring 12 can increase the friction between the rotating connecting part 501 and the fixed connecting part 201, so that after the swinging upright frame 5 is installed, the relative shaking between it and the connecting base 2 can be reduced, the stability of the swinging upright frame 5 can be improved, and the swinging upright frame 5 can be prevented from detaching from the river side wall.

[0053] Specifically, such as Figure 3 As shown, a slot is provided on one side of the fixed connecting part 201, and an annular extension end is provided on the movable connecting part to interlock with the slot. Two abutment rings 12 are respectively disposed on the outer ring of the slot and the extension end. A push rod 16 is provided on the other side of the movable connecting part. The push rod 16 is hollow inside and the hollow inner wall is threaded. After the bolt rod 6 is turned into the push rod 16, it passes through the bolt rod 6 and the movable connecting part and the fixed connecting part 201, and a fixing block is fixedly connected to the other end. The fixing block can rotate relative to the fixed connecting part 201. When the fixed connecting part 201 is connected to the movable connecting part, the movable connecting part is pushed along the bolt rod 6 by turning the bolt rod 6 until the movable connecting part and the fixed connecting part 201 are in contact. At this time, the two abutment rings 12 are respectively clamped between the slot of the fixed connecting part 201 and the contact surface between the fixed connecting part 201 and the movable connecting part.

[0054] Furthermore, the sand-blocking net 4 is available in multiple specifications based on the size of its filter pores. By replacing the sand-blocking net 4 with different specifications, the sand-blocking device can perform sand-blocking operations with different requirements according to different environments. This improves the overall adaptability of the sand-blocking device, and the sand-blocking net 4 can be easily and quickly replaced when damaged, which is beneficial for subsequent maintenance and repair.

[0055] Working principle: By adding a fan-shaped swinging upright frame 5 on each side of the mounting upright frame 3, the defect that the upright frame 3 cannot intercept sediment when applied to a river with a trapezoidal cross-section is compensated for. For the assembly of the swinging upright frame 5, please refer to the following instructions. Figure 3 As shown, a movable connecting part is provided at the center of the swinging upright frame 5, and fixed connecting parts 201 are provided at both ends of the mounting base. The middle of both the movable connecting part and the fixed connecting part 201 are through holes. A push rod 16 is provided on one side of the movable connecting part. A bolt rod 6 is turned inside the push rod 16. By turning the bolt rod 6, the push rod 16 is pushed to slide, so that the movable connecting part gradually approaches the fixed connecting part 201. Before the swinging upright frame 5 is fixed, the swing angle of the swinging upright frame 5 needs to be adjusted so that the swinging upright frame 5 is in contact with the inclined side wall of the river. Then, the bolt rod 6 is turned to clamp the swinging upright frame 5 onto the mounting upright frame 3.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand-trapping device for soil and water conservation, characterized in that... ,include: Install the base plate (1), which is fixed to the bottom of the river channel during use; A connecting base (2) is provided on the mounting base plate (1), and a connecting cavity (202) is provided on the upper part of the connecting base (2). The mounting frame (3) is installed, and the lower side of the mounting frame (3) is connected to the connecting cavity (202); The swing upright frame (5) is rotatably connected to the left or right end of the connecting base (2); The connecting base (2) is provided with a fixed connecting part (201) at its left or right end, and the swing upright frame (5) is provided with a rotating connecting part (501) connected to the connecting part. The rotating connecting part (501) and the fixed connecting part (201) are fixedly connected by a bolt rod (6).

2. The sand-trapping device for soil and water conservation according to claim 1, characterized in that: The swing upright frame (5) is fan-shaped as a whole, and its rotating connection part (501) is located at the center of the fan shape.

3. A sand-trapping device for soil and water conservation according to claim 1, characterized in that: The curved edge of the swing upright frame (5) is provided with an arc groove (502), and the mounting upright frame (3) is provided with connecting blocks (302) on both sides. The connecting block (302) is hollow in the middle and is provided with a connecting element (303) connected to the arc groove (502). The connecting element (303) slides relative to the arc groove (502) when the swing upright frame (5) swings.

4. A sand-trapping device for soil and water conservation according to claim 1, characterized in that: The connecting cavity (202) has a circular cross-section and an opening at the top with a width smaller than the diameter of the connecting cavity (202). One side of the mounting frame (3) is a connecting side (304) with a circular cross-section, and the connecting side (304) is rotatably inserted into the connecting cavity (202).

5. A sand-trapping device for soil and water conservation according to claim 1, characterized in that: A sliding rod (8) is provided on the mounting base plate (1). A base spring (9) is sleeved on the sliding rod (8), and a sliding element (10) is provided in the middle of the base spring (9) that slides along the sliding rod (8). An adjusting rod (11) is rotatably connected to the sliding element (10), and the other end of the adjusting rod (11) is rotatably connected to the mounting upright frame (3).

6. A sand-trapping device for soil and water conservation according to claim 5, characterized in that: The mounting frame (3) is provided with connecting grooves (301) on both sides, and a buffer assembly (7) is provided in the connecting grooves (301). The adjusting rod (11) is rotatably connected to the buffer assembly (7).

7. A sand-trapping device for soil and water conservation according to claim 6, characterized in that: The buffer assembly (7) includes a buffer rod (701), on which a vertical leaf spring (702) is sleeved. A sliding element (703) is provided in the middle of the vertical leaf spring (702) and can slide along the buffer rod (701). The adjusting rod (11) is rotatably connected to the sliding element.

8. A sand-trapping device for soil and water conservation according to claim 1, characterized in that: The swing upright frame (5) has a snap-fit ​​groove (503) on one or both sides. The swing upright frame (5) is connected to a fan-shaped frame (13) through the snap-fit ​​groove (503). The fan-shaped frame (13) has a snap-fit ​​groove (503) on one side and a snap-fit ​​block (131) on the other side that snaps into the snap-fit ​​groove (503).

9. A sand-trapping device for soil and water conservation according to claim 1, characterized in that: An abutment ring (12) is provided between the rotating connecting part (501) and the fixed connecting part (201).

10. A sand-trapping device for soil and water conservation according to claim 1, characterized in that: Both the swing upright frame (5) and the mounting upright frame (3) are equipped with sand-blocking nets (4), and the sand-blocking nets (4) are available in multiple specifications according to the size of the filter holes.

Images