A secondary disaster prevention device and a secondary disaster prevention method

Abstract

This invention belongs to the field of natural disaster prevention technology, specifically a device and method for preventing secondary disasters. It includes a base plate with a buffer mechanism on its upper surface. The buffer mechanism includes a fixed plate. The buffer mechanism provides initial protection against debris flows, thereby buffering and slowing them down. This secondary disaster prevention device and method, through the inclusion of a flipping support mechanism, automatically flips and supports the debris flow, thus blocking and intercepting it. Furthermore, the use of telescopic plates reduces protective gaps, eliminates safety hazards, and improves slope protection performance.

Description

Technical Field

[0001] This invention relates to the field of natural disaster prevention technology, and in particular to a device and method for preventing secondary disasters. Background Technology

[0002] Many natural disasters, especially high-level and high-intensity ones, often trigger a series of other disasters. This phenomenon is called a disaster chain. The first disaster to occur and take effect in the disaster chain is called the primary disaster, while the disasters induced by the primary disaster are called secondary disasters. Debris flow refers to a special type of flood that occurs in mountainous areas or other areas with deep valleys and steep terrain, caused by heavy rain, heavy snow or other natural disasters, and carries a large amount of mud, sand and rocks. Debris flows are characterized by suddenness, high velocity, large flow, large material capacity and strong destructive power.

[0003] For example, a debris flow protection mechanism disclosed in Chinese patent literature (application number: CN110424284B) intercepts debris flows by flipping a buffer plate. However, because the push plate is a movable structure, it can only reduce the buffering force by a very small amount. After the buffer plate flips, it can only be limited by the tension spring. Moreover, the tension spring is already in a twisted and deformed state when it is used to cooperate with the flipping of the buffer plate. Under the impact of the debris flow on its support plate and buffer plate, the tension spring is prone to deformation and damage, which can cause the buffer plate to flip and collapse. Secondly, after multiple buffer plates are flipped open, there is a large gap between two adjacent buffer plates, and some debris flows can pass directly through, resulting in poor slope protection performance and easy safety hazards. Summary of the Invention

[0004] In existing debris flow protection methods, relying on a single support can easily damage the buffer plate, and there is a large gap between the two buffer plates, resulting in poor slope protection performance and potential safety hazards. This invention proposes a device and method for preventing secondary disasters.

[0005] The present invention proposes a secondary disaster prevention device, which includes a base plate and a buffer mechanism provided on the upper surface of the base plate. The buffer mechanism includes a fixed plate. The buffer mechanism provides initial blocking and protection against debris flow, thereby achieving buffering and deceleration of the debris flow through blocking.

[0006] A fixing mechanism is provided on the lower surface of the base plate. The fixing mechanism is located below the buffer mechanism. The fixing mechanism expands outward to increase the contact with the ground and strengthen the fixing action of the base plate.

[0007] The base plate is equipped with a flipping support mechanism located on one side of the buffer mechanism. The flipping support mechanism enables automated flipping and provides support, thereby further blocking and protecting against mudslides.

[0008] Preferably, the upper surface of the base plate has a rectangular array of fixing holes, a placement groove, the lower surface of the fixing plate is fixedly connected to the upper surface of the base plate, the upper surface of the base plate is fixedly connected to a symmetrically distributed fixing block, the inner wall of the fixing block is fitted with a rotating rod via a bearing, the outer surface of the rotating rod is fixedly connected to a connecting block arranged in a ring array, one end of the connecting block is fixedly connected to an arc-shaped bucket, and an airbag is fixedly installed on one side surface of the fixing plate.

[0009] Preferably, a connecting tube is fixedly connected to one side surface of the airbag, one end of the connecting tube passes through and extends to the other side surface of the fixing plate, a pressure cylinder is fixedly connected to one end of the connecting tube, the lower surface of the pressure cylinder is fixedly connected to the upper surface of the base plate, a piston block is movably sleeved on the inner wall of the pressure cylinder, a pressure rod is fixedly connected to one side surface of the piston block, one end of the pressure rod passes through and extends to one side surface of the pressure cylinder, and a return spring is movably sleeved on the outer surface of the pressure rod.

[0010] Preferably, one end of the return spring is fixedly connected to one side surface of the piston block, and the other end of the return spring is fixedly connected to one side inner wall of the pressure cylinder. A movable groove is provided on one side inner wall of the placement groove, and a stroke groove is provided on the upper surface of the base plate. The bottom of the stroke groove communicates with the inner top wall of the movable groove. A locking block is movably inserted into the inner wall of the movable groove, and a driving block is fixedly connected to the upper surface of the locking block. One end of the driving block passes through the stroke groove and extends to the upper surface of the base plate.

[0011] Preferably, one side surface of the driving block is fixedly connected to one end of the pressure rod. The fixing mechanism includes a stud, the outer surface of which is movably inserted into the inner wall of the fixing hole. A protective groove is formed on the upper surface of the stud, and a cavity is formed inside the stud. The inner wall of the cavity is formed with through grooves arranged in a ring array. A lead screw is installed on the inner bottom wall of the cavity through a bearing. One end of the lead screw passes through and extends into the interior of the protective groove. A hexagonal block is fixedly connected to one end of the lead screw.

[0012] Preferably, a movable ring is threaded onto the outer surface of the lead screw, and a series of bent blocks arranged in a ring array are fixedly connected to the outer surface of the movable ring. One end of each bent block is fixedly connected to the inner bottom wall of the cavity. The flipping support mechanism includes a drive rod, both ends of which are mounted to the front and rear inner walls of the placement slot via bearings. A flipping plate is fixedly fitted onto the outer surface of the drive rod, and a slot is provided at one end of the flipping plate. The inner wall of the slot is movably inserted into one end of the slot block. Protective tubes arranged symmetrically are fixedly connected to both sides of the flipping plate.

[0013] Preferably, the outer surface of the drive rod is movably sleeved with symmetrically distributed torsion springs. One end of the torsion spring is fixedly connected to one side surface of the flip plate, and the other end of the torsion spring is fixedly connected to one side inner wall of the placement slot. Symmetrically distributed storage slots are formed on both sides of the flip plate. A telescopic plate is movably inserted into the inner wall of the storage slot. Symmetrically distributed mounting slots are formed on both sides of the telescopic plate. A roller is hinged to the inner wall of the mounting slot by a pin. The outer surface of the roller rolls in contact with one side inner wall of the storage slot. A guide groove is formed on the inner bottom wall of the storage slot.

[0014] Preferably, one end of the guide groove extends through and to the upper surface of the flip plate, a guide block is slidably connected to the inner wall of the guide groove, the lower surface of the guide block is fixedly connected to the upper surface of the telescopic plate, a tension spring is fixedly connected to one side surface of the guide block, one end of the tension spring is fixedly connected to one side inner wall of the guide groove, and a protective rod is mounted on the upper surface of the guide block via a bearing.

[0015] Preferably, a rubber sleeve is fixedly fitted onto the outer surface of the protective rod, a limiting groove is formed on the upper surface of the flip plate, a slider is slidably fitted onto the inner wall of the limiting groove, a movable plate is fixedly connected to the upper surface of the slider, and symmetrically distributed pressing rods are fixedly connected to both sides of the movable plate. A first support is fixedly connected to the upper surface of the movable plate, a swing rod is hinged to the inner wall of the first support via a pin, a second support is hinged to one end of the swing rod via a pin, a fixed seat is fixedly connected to the lower surface of the second support, and one side surface of the fixed seat is fixedly connected to one side surface of the base plate.

[0016] Preferably, a method for preventing secondary disasters is provided, the specific method being as follows: Step one, after fixing the base plate, which is arranged in a linear array, on the slope in sequence with pins, the hexagonal block is rotated clockwise with an Allen wrench. The rotation of the hexagonal block drives the lead screw to rotate, and the rotation of the lead screw drives the moving ring to move downward. The downward movement of the moving ring compresses the bending block, thereby deforming the bending block. The middle part of the bending block bends and extends outward through the through groove, compressing against the ground, thereby achieving stable fixation of the base plate.

[0017] Step two: When a debris flow occurs, it first impacts the curved bucket. Through the cooperation of the connecting block and the rotating rod, the curved bucket rotates in a circle. The debris flow drives the curved bucket to make circular motion to weaken its impact force, thereby reducing the impact force of the debris flow on the fixed plate. In addition, the rotation of the curved bucket, through the cooperation of the inclined surface at the bottom of the fixed plate, will scoop up the debris flow on the bottom plate, flip it once, and pour it out, so that it can come into contact with the subsequent debris flow, thereby reducing the impact force of the subsequent debris flow and buffering it.

[0018] Step 3: As the mudslide continues to submerge the curved bucket, its impact force will compress the airbag on the fixed plate, causing the gas inside the airbag to be compressed and transported to the pressure cylinder through the connecting pipe. Affected by the air pressure, the piston block moves. The movement of the piston block drives the pressure rod to move, causing the return spring to compress and contract. The movement of the pressure rod drives the locking block to move through the drive block. The movement of the locking block causes one end of it to disengage from the locking slot. After the tilting plate disengages from the locking block's limit, it tilts through the cooperation of the torsion spring and the drive rod.

[0019] Step four: The flipping motion of the flipping plate, through the cooperation of the second support and the swing rod, causes the slider to slide within the limiting groove. This, in turn, moves the pressing rod via the moving plate. The movement of the pressing rod compresses the protective rod, causing it to move the telescopic plate via the guide block. At this time, the tension spring stretches, and the telescopic plate moves out of the receiving groove through the cooperation of the rollers. Simultaneously, the slider moves to one end of the limiting groove and stops moving. The flipping plate is supported by the cooperation of the first support, the second support, and the swing rod. At this time, the two adjacent telescopic plates are in contact and fit together, working together with the flipping plate to block the mudslide.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. By setting up a buffer mechanism, the debris flow can be blocked and protected. By blocking, the impact force of the debris flow is reduced and the flow velocity is slowed down, thus facilitating the subsequent blocking and interception of the debris flow.

[0022] 2. By setting up a fixing mechanism, the bending block is deformed by being squeezed, thereby expanding and squeezing outward, increasing the friction with the ground, preventing loosening and falling off due to mudslide erosion, and thus increasing the stability of the base plate when it is fixed.

[0023] 3. By setting up a flipping support mechanism, it can automatically flip and support, thereby blocking and intercepting debris flows. In addition, through the cooperation of telescopic plates, it can reduce protective gaps, eliminate safety hazards, and improve slope protection performance. Attached Figure Description

[0024] Figure 1 A schematic diagram of a device and method for preventing secondary disasters;

[0025] Figure 2 A three-dimensional diagram of the base plate structure of a secondary disaster prevention device and method;

[0026] Figure 3 A three-dimensional diagram of an airbag structure for a secondary disaster prevention device and method;

[0027] Figure 4 A device and method for preventing secondary disasters. Figure 3 Enlarged view of the structure at point A in the middle;

[0028] Figure 5 A three-dimensional diagram of a column nail structure for a secondary disaster prevention device and method;

[0029] Figure 6 A three-dimensional diagram of an arc-shaped bucket structure for a secondary disaster prevention device and method;

[0030] Figure 7 A three-dimensional view of a flip-plate structure for a secondary disaster prevention device and method;

[0031] Figure 8 A device and method for preventing secondary disasters. Figure 7 Enlarged view of the structure at point B in the middle;

[0032] Figure 9 A device and method for preventing secondary disasters. Figure 7 Enlarged view of the structure at point C;

[0033] Figure 10 A three-dimensional diagram of a movable plate structure for a secondary disaster prevention device and method.

[0034] In the diagram: 1. Base plate; 2. Fixing plate; 21. Placement slot; 22. Fixing block; 23. Rotating rod; 24. Connecting block; 25. Arc-shaped bucket; 26. Airbag; 27. Connecting pipe; 28. Pressure cylinder; 29. ​​Piston block; 210. Pressure rod; 211. Return spring; 212. Stroke groove; 213. Locking block; 214. Drive block; 3. Stud; 31. Protective groove; 32. Through groove; 33. Lead screw; 34. Hexagonal block; 35. Moving... 36. Moving ring; 4. Bending block; 5. Drive rod; 6. Flipping plate; 7. Slot; 8. Protective tube; 9. Torsion spring; 10. Telescopic plate; 11. Roller; 2. Guide groove; 31. Guide block; 42. Tension spring; 5. Protective rod; 6. Rubber sleeve; 7. Limiting groove; 8. Sliding block; 9. Moving plate; 10. Pressing rod; 11. First support; 12. Swinging rod; 13. Second support. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Example 1

[0037] Reference Figures 1-10 A secondary disaster prevention device includes a base plate 1, and a buffer mechanism is provided on the upper surface of the base plate 1. The buffer mechanism includes a fixed plate 2. The buffer mechanism provides initial protection against debris flow and buffers and slows down the debris flow by blocking it.

[0038] A fixing mechanism is provided on the lower surface of the base plate 1. The fixing mechanism is located below the buffer mechanism. The fixing mechanism expands outward to increase the contact with the ground and strengthen the fixing action of the base plate 1.

[0039] The base plate 1 is equipped with a flipping support mechanism located on one side of the buffer mechanism. The flipping support mechanism enables automated flipping and provides support, thereby further blocking and protecting against debris flows.

[0040] Furthermore, to achieve initial blocking and buffering, the upper surface of the base plate 1 is provided with a rectangular array of fixing holes, and a placement groove 21 is provided on the upper surface of the base plate 1. The lower surface of the fixing plate 2 is fixedly connected to the upper surface of the base plate 1. A symmetrically distributed fixing block 22 is fixedly connected to the upper surface of the base plate 1. A rotating rod 23 is installed on the inner wall of the fixing block 22 through a bearing. A connecting block 24 distributed in a ring array is fixedly connected to the outer surface of the rotating rod 23. An arc-shaped bucket 25 is fixedly connected to one end of the connecting block 24. The rotating rod 23 drives the arc-shaped bucket 25 to perform circular motion through the cooperation of the connecting block 24. The lower end of the fixing plate 2 is arc-shaped, which facilitates the use of the arc-shaped bucket 25 to scoop up the debris flow. Through continuous circular motion, the debris flow is scooped up and dumped, thereby reducing the impact force of the subsequent debris flow. An airbag 26 is fixedly installed on one side surface of the fixing plate 2.

[0041] Furthermore, to achieve reset movement, a connecting pipe 27 is fixedly connected to one side surface of the airbag 26. One end of the connecting pipe 27 passes through and extends to the other side surface of the fixed plate 2. A pressure cylinder 28 is fixedly connected to one end of the connecting pipe 27. After the airbag 26 is compressed, gas is transported to the pressure cylinder 28 through the connecting pipe 27. The lower surface of the pressure cylinder 28 is fixedly connected to the upper surface of the base plate 1. A piston block 29 is movably sleeved on the inner wall of the pressure cylinder 28. A pressure rod 210 is fixedly connected to one side surface of the piston block 29. One end of the pressure rod 210 passes through and extends to one side surface of the pressure cylinder 28. A reset spring 211 is movably sleeved on the outer surface of the pressure rod 210. After the pressure cylinder 28 is subjected to gas pressure, it squeezes the piston block 29, causing the piston block 29 to drive the pressure rod 210 to move. At this time, the reset spring 211 is compressed and contracted. After the gas pressure disappears, the piston block 29 and the pressure rod 210 are reset and moved by the reset action of the reset spring 211.

[0042] Furthermore, in order to limit the travel distance, one end of the return spring 211 is fixedly connected to one side surface of the piston block 29, and the other end of the return spring 211 is fixedly connected to one side inner wall of the pressure cylinder 28. A movable groove is provided on one side inner wall of the placement groove 21, and a travel groove 212 is provided on the upper surface of the base plate 1. The bottom of the travel groove 212 is connected to the inner top wall of the movable groove. A locking block 213 is movably inserted into the inner wall of the movable groove. A driving block 214 is fixedly connected to the upper surface of the locking block 213. One end of the driving block 214 passes through the travel groove 212 and extends to the upper surface of the base plate 1. The travel groove 212 serves to limit the travel distance of the driving block 214. The movement of the driving block 214 drives the locking block 213 to move within the movable groove.

[0043] By setting up buffer mechanisms, the debris flow can be blocked and protected. By blocking, the impact force of the debris flow is reduced and the flow velocity is slowed down, thus facilitating the subsequent blocking and interception of the debris flow.

[0044] Furthermore, to facilitate rotation, one side surface of the drive block 214 is fixedly connected to one end of the pressure rod 210. The movement of the pressure rod 210 drives the drive block 214 to move. The fixing mechanism includes a stud 3. The outer surface of the stud 3 is movably inserted into the inner wall of the fixing hole. A protective groove 31 is provided on the upper surface of the stud 3. A cavity is provided inside the stud 3. The inner wall of the cavity is provided with through grooves 32 arranged in a ring array. A lead screw 33 is installed on the inner bottom wall of the cavity through a bearing. One end of the lead screw 33 passes through and extends into the interior of the protective groove 31. A hexagonal block 34 is fixedly connected to one end of the lead screw 33. The protective groove 31 serves to protect the hexagonal block 34 inside when the stud 3 is inserted into the ground and struck. The hexagonal block 34 facilitates the rotation of the lead screw 33 by using an Allen wrench.

[0045] Furthermore, to achieve stable fixation with the ground, a movable ring 35 is threaded onto the outer surface of the lead screw 33. A series of bent blocks 36 arranged in a ring array are fixedly connected to the outer surface of the movable ring 35. One end of the bent blocks 36 is fixedly connected to the inner bottom wall of the cavity. The rotation of the lead screw 33 drives the movable ring 35 to move. The movement of the movable ring 35 compresses the bent blocks 36, causing them to deform and increase friction, thereby improving the stability during fixation. The flipping support mechanism includes a drive rod 4. Both ends of the drive rod 4 are installed on the front inner wall and the rear inner wall of the placement groove 21 respectively through bearings. A flipping plate 41 is fixedly sleeved onto the outer surface of the drive rod 4. The drive rod 4 cooperates with the flipping plate 41 to perform the flipping support function. A slot 42 is opened at one end of the flipping plate 41. The inner wall of the slot 42 is movably inserted into one end of the locking block 213. The locking block 213, through the cooperation of the slot 42, performs the function of limiting and fixing the flipping plate 41. Protective tubes 43 arranged in a symmetrical manner are fixedly connected to both sides of the flipping plate 41.

[0046] By setting up a fixing mechanism, the bending block 36 is deformed by being squeezed, thereby expanding and squeezing outward, increasing the friction with the ground, preventing loosening and falling off due to mudslide erosion, and thus increasing the stability of the base plate 1 when it is fixed.

[0047] Furthermore, to achieve automated flipping support, a torsion spring 44 is movably sleeved on the outer surface of the drive rod 4. One end of the torsion spring 44 is fixedly connected to one side surface of the flipping plate 41. The reset action of the torsion spring 44 drives the flipping plate 41 to flip through the drive rod 4. The other end of the torsion spring 44 is fixedly connected to one side inner wall of the placement groove 21. A storage groove is symmetrically distributed on both sides of the flipping plate 41. A telescopic plate 45 is movably inserted into the inner wall of the storage groove. A mounting groove is symmetrically distributed on both sides of the telescopic plate 45. A roller 46 is hinged to the inner wall of the mounting groove through a pin. The telescopic plate 45 is facilitated to extend and retract through the cooperation of the roller 46. The outer surface of the roller 46 rolls in contact with one side inner wall of the storage groove. A guide groove 47 is provided on the inner bottom wall of the storage groove.

[0048] Furthermore, in order to reduce the protective gap, one end of the guide groove 47 extends through and to the upper surface of the flip plate 41. A guide block 48 is slidably connected to the inner wall of the guide groove 47. The lower surface of the guide block 48 is fixedly connected to the upper surface of the telescopic plate 45. Through the cooperation of the guide block 48 and the guide groove 47, the telescopic plate 45 is guided to move. Through the contact between the telescopic plates 45, the protective gap is reduced, safety hazards are eliminated, and the slope protection performance is improved. A tension spring 49 is fixedly connected to one side surface of the guide block 48. The reset function of the tension spring 49 is used to drive the telescopic plate 45 to reset and move through the guide block 48. One end of the tension spring 49 is fixedly connected to one side inner wall of the guide groove 47. A protective rod 410 is installed on the upper surface of the guide block 48 through a bearing.

[0049] Furthermore, to achieve stable support and interception of debris flows, a rubber sleeve 411 is fixedly fitted onto the outer surface of the protective rod 410. The rotation of the protective rod 410, in cooperation with the rubber sleeve 411, reduces friction and improves service life. A limiting groove 412 is formed on the upper surface of the flip plate 41, and a slider 413 is slidably fitted onto the inner wall of the limiting groove 412. A moving plate 414 is fixedly connected to the upper surface of the slider 413, and symmetrically distributed pressing rods 415 are fixedly connected to both sides of the moving plate 414. The movement of the slider 413 drives the pressing rods 415 through the moving plate 414. The movement of the compression rod 415 compresses the protective rod 410. The upper surface of the moving plate 414 is fixedly connected to the first support 416. The inner wall of the first support 416 is hinged to the swing rod 417 by a pin. One end of the swing rod 417 is hinged to the second support 418 by a pin. Through the cooperation of the first support 416, the second support 418 and the swing rod 417, the tipping plate 41 is stably supported, thereby blocking and intercepting the debris flow. The lower surface of the second support 418 is fixedly connected to the fixed seat. One side of the fixed seat is fixedly connected to one side of the base plate 1.

[0050] By setting up a flipping support mechanism, the slope can be automatically flipped and supported, thereby blocking and intercepting debris flows. In addition, the telescopic plates 45 work together to reduce protective gaps, eliminate safety hazards, and improve slope protection performance.

[0051] Example 2

[0052] Reference Figures 1-10A method for preventing secondary disasters using a device, the specific method is as follows: Step 1, after fixing the base plate 1, which is arranged in a linear array, on the slope by using the pins 3, then rotating the hexagonal block 34 clockwise with an Allen wrench. The rotation of the hexagonal block 34 drives the screw 33 to rotate. The rotation of the screw 33 drives the moving ring 35 to move downward. The downward movement of the moving ring 35 compresses the bending block 36, thereby deforming the bending block 36. The middle part of the bending block 36 bends and extends outward through the through groove 32, compressing against the ground, thereby achieving stable fixation of the base plate 1.

[0053] Step two: When a debris flow occurs, it will first impact the curved bucket 25. Through the cooperation of the connecting block 24 and the rotating rod 23, the curved bucket 25 will rotate in a circle. The debris flow will drive the curved bucket 25 to make a circular motion to weaken its impact force, thereby reducing the impact force of the debris flow on the fixed plate 2. The rotation of the curved bucket 25, through the cooperation of the inclined surface at the bottom end of the fixed plate 2, will scoop up the debris flow on the bottom plate 1, flip it once, and pour it out, so that it can come into contact with the subsequent debris flow, thereby reducing the impact force of the subsequent debris flow and buffering it.

[0054] Step 3: When the mudslide continues to submerge the arc-shaped bucket 25, its impact force will impact and squeeze the airbag 26 on the fixed plate 2, causing the gas in the airbag 26 to be squeezed and then transported to the pressure cylinder 28 through the connecting pipe 27. Affected by the air pressure, the piston block 29 moves. The movement of the piston block 29 drives the pressure rod 210 to move and causes the return spring 211 to compress and contract. The movement of the pressure rod 210 drives the locking block 213 to move through the drive block 214. The movement of the locking block 213 causes one end to disengage from the locking groove 42. After the tilting plate 41 disengages from the limit of the locking block 213, it performs a tilting motion through the cooperation of the torsion spring 44 and the drive rod 4.

[0055] Step four: The flipping motion of the flipping plate 41, through the cooperation of the second support 418 and the swing rod 417, causes the slider 413 to slide within the limiting groove 412. This, in turn, drives the pressing rod 415 to move via the moving plate 414. The movement of the pressing rod 415 compresses the protective rod 410, causing the protective rod 410 to move via the guide block 48 and the telescopic plate 45. At this time, the tension spring 49 stretches, and the telescopic plate 45 moves out of the receiving groove through the cooperation of the roller 46. Simultaneously, the slider 413 moves to one end of the limiting groove 412 and stops moving. The flipping plate 41 is supported by the cooperation of the first support 416, the second support 418, and the swing rod 417. At this time, the two adjacent telescopic plates 45 are in contact with each other and work together with the flipping plate 41 to block the mudslide.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A secondary disaster prevention device, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a buffer mechanism, which includes a fixed plate (2). The buffer mechanism provides initial protection against the debris flow and buffers and slows down the debris flow by blocking it. The bottom surface of the base plate (1) is provided with a fixing mechanism. The fixing mechanism is located below the buffer mechanism. The fixing mechanism expands outward to increase contact with the ground and strengthens the fixing action of the base plate (1). The base plate (1) is provided with a flipping support mechanism inside. The flipping support mechanism is located on one side of the buffer mechanism. The flipping support mechanism realizes the automatic flipping action and provides support, thereby further blocking and protecting against debris flow. The upper surface of the base plate (1) is provided with a placement groove (21). The lower surface of the fixing plate (2) is fixedly connected to the upper surface of the base plate (1). The upper surface of the base plate (1) is fixedly connected with symmetrically distributed fixing blocks (22). The inner wall of the fixing block (22) is equipped with a rotating rod (23) through a bearing. The outer surface of the rotating rod (23) is fixedly connected with connecting blocks (24) arranged in a ring array. One end of the connecting block (24) is fixedly connected with an arc-shaped bucket (25). An airbag (26) is fixedly installed on one side surface of the fixing plate (2). One side surface of the airbag (26) is fixedly connected to a connecting... Connector (27), one end of the connecting pipe (27) passes through and extends to the other side surface of the fixing plate (2), one end of the connecting pipe (27) is fixedly connected to a pressure cylinder (28), the lower surface of the pressure cylinder (28) is fixedly connected to the upper surface of the base plate (1), a piston block (29) is movably sleeved on the inner wall of the pressure cylinder (28), a pressure rod (210) is fixedly connected to one side surface of the piston block (29), one end of the pressure rod (210) passes through and extends to one side surface of the pressure cylinder (28), and a return spring (211) is movably sleeved on the outer surface of the pressure rod (210). One end of the return spring (211) is fixedly connected to one side surface of the piston block (29), and the other end of the return spring (211) is fixedly connected to one side inner wall of the pressure cylinder (28). A movable groove is provided on one side inner wall of the placement groove (21), and a stroke groove (212) is provided on the upper surface of the base plate (1). The bottom of the stroke groove (212) is connected to the inner top wall of the movable groove. A locking block (213) is movably inserted into the inner wall of the movable groove. A driving block (214) is fixedly connected to the upper surface of the locking block (213). One end of the driving block (214) passes through the stroke groove (212) and extends to the upper surface of the base plate (1). One side surface of the driving block (214) is fixedly connected to one end of the pressure rod (210). The flipping support mechanism includes a drive rod (4), both ends of which are installed on the front inner wall and the rear inner wall of the placement groove (21) respectively via bearings. A flipping plate (41) is fixedly sleeved on the outer surface of the drive rod (4). A slot (42) is opened at one end of the flipping plate (41). The inner wall of the slot (42) is movably inserted into one end of the locking block (213). Protective tubes (43) are fixedly connected to both sides of the flipping plate (41) in a symmetrical arrangement. Torsion springs (44) are movably sleeved on the outer surface of the drive rod (4). One end of the torsion spring (44) is fixedly connected to one side surface of the flipping plate (41), and the other end of the torsion spring (44) is fixedly connected to one side inner wall of the placement groove (21). The upper surface of the flip plate (41) is provided with a limiting groove (412). The inner wall of the limiting groove (412) is slidably sleeved with a slider (413). The upper surface of the slider (413) is fixedly connected with a moving plate (414). The upper surface of the moving plate (414) is fixedly connected with a first support (416). The inner wall of the first support (416) is hinged with a swing rod (417) by a pin. One end of the swing rod (417) is hinged with a second support (418) by a pin. The lower surface of the second support (418) is fixedly connected with a fixed seat. One side surface of the fixed seat is fixedly connected to one side surface of the base plate (1).

2. The secondary disaster prevention device according to claim 1, characterized in that: The upper surface of the base plate (1) is provided with fixing holes arranged in a rectangular array. The fixing mechanism includes a stud (3). The outer surface of the stud (3) is movably inserted into the inner wall of the fixing hole. The upper surface of the stud (3) is provided with a protective groove (31). The inside of the stud (3) is provided with a cavity. The inner wall of the cavity is provided with a through groove (32) arranged in a ring array. The bottom wall of the cavity is equipped with a lead screw (33) through a bearing. One end of the lead screw (33) passes through and extends into the inside of the protective groove (31). One end of the lead screw (33) is fixedly connected to a hexagonal block (34). The outer surface of the lead screw (33) is threaded with a movable ring (35), and the outer surface of the movable ring (35) is fixedly connected with bending blocks (36) arranged in a ring array. One end of the bending block (36) is fixedly connected to the inner bottom wall of the cavity.

3. The secondary disaster prevention device according to claim 2, characterized in that: The flip plate (41) has symmetrically distributed storage slots on both sides. A telescopic plate (45) is movably inserted into the inner wall of the storage slot. The telescopic plate (45) has symmetrically distributed mounting slots on both sides. A roller (46) is hinged to the inner wall of the mounting slot by a pin. The outer surface of the roller (46) rolls in contact with one side of the inner wall of the storage slot. A guide groove (47) is provided on the inner bottom wall of the storage slot.

4. The secondary disaster prevention device according to claim 3, characterized in that: One end of the guide groove (47) extends through and to the upper surface of the flip plate (41). A guide block (48) is slidably connected to the inner wall of the guide groove (47). The lower surface of the guide block (48) is fixedly connected to the upper surface of the telescopic plate (45). A tension spring (49) is fixedly connected to one side surface of the guide block (48). One end of the tension spring (49) is fixedly connected to one side inner wall of the guide groove (47). A protective rod (410) is installed on the upper surface of the guide block (48) through a bearing. A rubber sleeve (411) is fixedly fitted on the outer surface of the protective rod (410), and symmetrically distributed extrusion rods (415) are fixedly connected to both sides of the moving plate (414). The movement of the extrusion rods (415) extrudes the protective rod (410), causing the protective rod (410) to move through the guide block (48) and drive the telescopic plate (45) to move.

5. The prevention method of the secondary disaster prevention device according to claim 4, the prevention method is as follows: Step 1, after fixing the base plate (1) which is arranged in a linear array on the slope by means of the column nail (3), the hexagonal block (34) is rotated clockwise by means of the internal hexagonal wrench. The rotation of the hexagonal block (34) drives the screw (33) to rotate. The rotation of the screw (33) drives the moving ring (35) to move down. The descent of the moving ring (35) squeezes the bending block (36), thereby causing the bending block (36) to deform. The middle part of the bending block (36) is bent and pushed outward through the through groove (32), squeezing with the ground, thereby achieving stable fixation of the base plate (1); Step 2: When a debris flow occurs, it will first impact the curved bucket (25). Through the cooperation of the connecting block (24) and the rotating rod (23), the curved bucket (25) will rotate in a circle. The debris flow will drive the curved bucket (25) to make a circular motion to weaken its impact force, thereby reducing the impact force of the debris flow on the fixed plate (2). The rotation of the curved bucket (25) will, through the cooperation of the inclined surface at the bottom of the fixed plate (2), scoop up the debris flow on the bottom plate (1), flip it once, and pour it out, so that it can come into contact with the subsequent debris flow, thereby reducing the impact force of the subsequent debris flow and buffering it. Step 3: When the mudslide continues to submerge the arc-shaped bucket (25), its impact force will impact and squeeze the airbag (26) on the fixed plate (2), so that the gas in the airbag (26) is squeezed and transported to the pressure cylinder (28) through the connecting pipe (27). Affected by the air pressure, the piston block (29) moves. The movement of the piston block (29) drives the pressure rod (210) to move and causes the return spring (211) to compress and contract. The movement of the pressure rod (210) drives the locking block (213) to move through the drive block (214). The movement of the locking block (213) causes one end of it to disengage from the slot (42). After the flipping plate (41) disengages from the limit of the locking block (213), it flips through the cooperation of the torsion spring (44) and the drive rod (4). Step four: The flipping motion of the flipping plate (41) is achieved through the cooperation of the second support (418) and the swing rod (417), causing the slider (413) to slide in the limiting groove (412). This causes the pressing rod (415) to move through the moving plate (414). The movement of the pressing rod (415) compresses the protective rod (410), causing the protective rod (410) to move through the guide block (48) and the telescopic plate (45). At this time, the tension spring (49) is stretched, and the telescopic plate (45) moves out of the storage groove through the cooperation of the roller (46). At the same time, the slider (413) moves to one end of the limiting groove (412) and stops moving. The flipping plate (41) is supported by the cooperation of the first support (416), the second support (418) and the swing rod (417). At this time, the two adjacent telescopic plates (45) are in contact with each other and work together with the flipping plate (41) to block the mudslide.

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