Geological disaster slope stone blocking device

Abstract

The utility model discloses a geological disaster slope stone blocking device which comprises a fixed stone blocking structure and a passive stone blocking structure, the fixed stone blocking structure comprises a first stone blocking net and a plurality of first anchor rods, one ends of the first anchor rods are fixed with the first stone blocking net, and the rest parts of the first anchor rods are inserted into a slope to fix the first stone blocking net on the slope in an attached mode. The multiple sets of passive stone blocking structures are sequentially arranged in an attached mode from left to right, each passive stone blocking structure comprises a plurality of frames arranged on the lower portion of the slope surface, second anchor rods inserted into the slope surface are hinged to the two sides of the bottom of each frame, a second stone blocking net is arranged in each frame, and a buffering mechanism is arranged between each frame and the ground. According to the device, slope loose stones are stabilized through the fixed stone blocking structure, the passive stone blocking structure reduces impact energy caused by falling stones to a frame and a second stone blocking net through a buffer mechanism, graded dissipation of the impact energy is achieved, the impact resistance of the device is improved, the structural damage risk is reduced, and a multi-stage protection system is formed; and the whole structure is safer, and the service life is longer.

Description

Technical Field

[0001] This utility model relates to the field of geological disaster prevention technology, specifically to a slope rockfall prevention device for geological disasters. Background Technology

[0002] Geological disasters refer to geological processes or phenomena that cause damage to human life and property and damage the environment, formed under the influence of natural or human factors. On some hillsides, steep rock walls, and in the location of mountain roads, there may be a large number of fixed but loose rock fragments on the mountain. When blown by strong winds or washed by rain, the rocks may fall off.

[0003] Existing slope rockfall prevention technologies mainly employ rockfall nets or rockfall walls. Rockfall nets are fixed to the slope with anchor bolts, but they are prone to loosening after long-term use, resulting in a low safety factor. While rockfall walls offer higher stability, they lack a buffer structure, making them susceptible to damage from falling rocks and shortening their lifespan. For example, Chinese utility model patent application number CN202422035949.7 discloses a slope rockfall prevention device that is easy to transport, including a rockfall prevention mechanism, a connecting mechanism, three first steel rods, and two second steel rods. The connecting mechanism includes a connecting shaft, and the rockfall prevention mechanism includes a rockfall plate. A T-shaped groove is rotatably provided on one side of the rockfall plate via the connecting shaft. Multiple buffer springs are axially symmetrically fixed in the vertical direction at the front and rear ends of the connecting shaft on the T-shaped groove and one side of the rockfall plate. Multiple buffer mechanisms are evenly installed in a matrix on the front wall of the rockfall plate.

[0004] This type of simple rockfall barrier is easily damaged during actual use, has poor safety, and a limited service life. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a safer and longer-lasting geological disaster slope rock-blocking device.

[0006] Therefore, this utility model is implemented using the following technical solution:

[0007] A geological hazard slope rockfall prevention device is characterized by comprising a fixed rockfall prevention structure and a passive rockfall prevention structure. The fixed rockfall prevention structure includes a first rockfall prevention net and several first anchor rods. One end of each first anchor rod is fixed to the first rockfall prevention net, and the remaining part is inserted into the slope to attach and fix the first rockfall prevention net to the slope. Multiple sets of the passive rockfall prevention structures are arranged sequentially from left to right. The passive rockfall prevention structure includes several frames located at the lower part of the slope. The bottom sides of each frame are hinged with second anchor rods inserted into the slope. A second rockfall prevention net is provided inside the frame, and a buffer mechanism is provided between the frame and the ground.

[0008] Furthermore, the buffer mechanism includes a first link, a second link, and a third link. The lower end of the first link has a sleeve, the upper end of the second link is inserted into the sleeve, and the upper end of the second link has an outwardly extending step. The lower end of the sleeve has an inwardly bent limiting ring for the lower end of the step to abut against. A buffer spring is provided between the upper end of the step and the upper end of the sleeve. A damper is provided between the second link and the third link. The frame is provided with a first hinge seat that is hinged to the upper end of the first link, and the lower end of the third link is hinged to a second hinge seat located on the ground.

[0009] Furthermore, the damper includes a housing and a piston rod extending through the housing. The upper end of the piston rod is fixed to the lower end of the second connecting rod. A first piston is provided at the lower end of the piston rod. A second piston is provided in the lower part of the housing. Multiple sealing rings are fitted around the outer ring of the second piston. A buffer fluid is provided in the housing above the second piston, and a buffer gas is provided in the housing below the second piston.

[0010] Furthermore, each frame is provided with an adjustable bollard below it. The adjustable bollard can block or expose the square opening formed by the lower end of the frame, the two second anchor rods, and the slope. The adjustable bollard is provided with a base on both the left and right sides below it. The base is provided with a motor and a bearing seat. The motor shaft is fitted with a gear. The bearing seat contains a bearing. Multiple connecting seats are welded and fixed to the lower part of the adjustable bollard. A connecting shaft is welded through the multiple connecting seats. The two ends of the connecting shaft are respectively inserted into the corresponding bearings and welded and fixed to the inner ring of the bearings. The connecting shaft is provided with a half gear that meshes with the gear.

[0011] Furthermore, the base is cast at the intersection of the slope and the ground.

[0012] Furthermore, both sides of the second hinge seat are fixed to the ground with multiple ground nails.

[0013] Furthermore, one end of the first anchor rod is fixed to the first rockfall barrier by welding, the damper and the third connecting rod are fixed by welding, and the upper end of the piston rod is fixed to the lower end of the second connecting rod by welding.

[0014] By adopting the above technical solution, the fixed rock-blocking structure stabilizes the loose rocks on the slope, while the passive rock-blocking structure uses a buffer mechanism to reduce the impact energy of falling rocks on the frame and the second rock-blocking net, realizing the graded dissipation of impact energy, improving the device's impact resistance, reducing the risk of structural damage, and enhancing the device's adaptability to complex slopes. The fixed rock-blocking structure prevents rocks from loosening, while the passive rock-blocking structure intercepts falling rocks. The two work together to form a multi-level protection system, making the overall structure safer and with a longer service life. Attached Figure Description

[0015] The present invention includes the following figures:

[0016] Figure 1 This is a side view of the structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present utility model;

[0018] Figure 3 This is a side view of the partial passive rock-blocking structure in this utility model (partially showing the internal structure).

[0019] Figure 4 This is a front view schematic diagram of the passive rock-blocking structure in this utility model.

[0020] Reference numerals: 1. Fixed rockfall barrier structure; 2. Passive rockfall barrier structure; 3. First rockfall barrier net; 4. First anchor bolt; 5. Slope; 6. Frame; 7. Second anchor bolt; 8. Second rockfall barrier net; 9. Ground; 10. Buffer mechanism; 11. First connecting rod; 12. Second connecting rod; 13. Third connecting rod; 14. Sleeve; 15. Step; 16. Limiting ring; 17. Buffer spring; 18. Damper; 19. First hinge seat; 20. Second hinge seat; 21. Outer shell; 22. Piston rod; 23. First piston; 24. Second piston; 25. Sealing ring; 26. Buffer fluid; 27. Buffer gas; 28. Adjustable rockfall barrier plate; 29. ​​Base; 30. Motor; 31. Bearing seat; 32. Gear; 33. Connecting seat; 34. Connecting shaft; 35. Half gear; 36. Ground stake. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Referring to the above-mentioned figures, the geological disaster slope rock-blocking device provided by this utility model includes a fixed rock-blocking structure 1 and a passive rock-blocking structure 2. The fixed rock-blocking structure 1 includes a first rock-blocking net 3 and several first anchor rods 4. One end of the first anchor rod 4 is fixed to the first rock-blocking net 3, and the remaining part is inserted into the slope surface 5 to attach and fix the first rock-blocking net 3 to the slope surface 5. Multiple sets of the passive rock-blocking structures 2 are arranged in sequence from left to right. The passive rock-blocking structure 2 includes several frames 6 located at the lower part of the slope surface 5. The bottom sides of the frame 6 are hinged with second anchor rods 7 inserted into the slope surface 5. A second rock-blocking net 8 is provided inside the frame 6, and a buffer mechanism 10 is provided between the frame 6 and the ground 9. The buffer mechanism 10 includes a first connecting rod 1. 1. A second connecting rod 12 and a third connecting rod 13. The lower end of the first connecting rod 11 has a sleeve 14. The upper end of the second connecting rod 12 is inserted into the sleeve 14, and the upper end of the second connecting rod 12 has an outwardly extending step 15. The lower end of the sleeve 14 has an inwardly bent limiting ring 16 for the lower end of the step 15 to abut against. A buffer spring 17 is provided between the upper end of the step 15 and the upper end of the sleeve 14. A damper 18 is provided between the second connecting rod 12 and the third connecting rod 13. The frame 6 has a first hinge seat 19 that is hinged to the upper end of the first connecting rod 11. The lower end of the third connecting rod 13 is hinged to a second hinge seat 20 located on the ground 9. The damper 18 includes a housing 21 and a piston rod 2 extending out of the housing 21. 2. The upper end of piston rod 22 is fixed to the lower end of second connecting rod 12. A first piston 23 is provided at the lower end of piston rod 22. A second piston 24 is provided in the lower part of the outer shell 21. Multiple sealing rings 25 are provided around the outer ring of the second piston 24. A buffer fluid 26 is provided in the outer shell 21 above the second piston 24, and a buffer gas 27 is provided in the outer shell 21 below the second piston 24. An adjustable bouldering plate 28 is provided below each frame 6. The adjustable bouldering plate 28 can block or expose the square opening formed by the lower end of frame 6, two second anchor rods 7 and slope 5. A base 29 is provided on the lower left and right sides of the adjustable bouldering plate 28. A motor 30 and a bearing seat 31 are provided on the base 29. The rotating shaft of the motor 30 is equipped with teeth. The wheel 32 has a bearing in the bearing seat 31. The adjustable rock barrier 28 has multiple connecting seats 33 welded to its lower part. A connecting shaft 34 is welded through the multiple connecting seats 33. The two ends of the connecting shaft 34 are respectively inserted into the corresponding bearings and welded to the inner ring of the bearings. The connecting shaft 34 has a half gear 35 that meshes with the gear 32. The base 29 is cast at the intersection of the slope 5 and the ground 9. The left and right sides of the second hinge seat 20 are fixed to the ground 9 by multiple ground nails 36. One end of the first anchor rod 4 is welded to the first rock barrier 3. The damper 18 and the third connecting rod 13 are welded together. The upper end of the piston rod 22 is welded to the lower end of the second connecting rod 12.

[0023] In this embodiment, the fixed rock-blocking structure 1 stabilizes the loose rocks on the slope 5, while the passive rock-blocking structure 2 uses the buffer mechanism 10 to reduce the impact energy of falling rocks on the frame 6 and the second rock-blocking net 8, thereby achieving graded dissipation of impact energy, improving the device's impact resistance, reducing the risk of structural damage, and enhancing the device's adaptability to complex slopes 5. The fixed rock-blocking structure 1 prevents the rocks from loosening, and the passive rock-blocking structure 2 intercepts falling rocks. The two work together to form a multi-level protection system, making the overall structure safer and with a longer service life.

[0024] The first link 11 and the second link 12 are buffered by a sleeve 14 and a buffer spring 17. The second link 12 and the third link 13 are buffered by a damper 18. The damper 18 has a first piston 23 and a second piston 24. Together with the buffer solution 26 and the buffer gas 27, it provides good buffering and damping effect to the piston rod 22 and the second link 12, so that the second link 12, the first link 11, the frame 6 and the second rockfall net 8 have more buffering to reduce the damage caused by falling rocks to the frame 6 and the second rockfall net 8. The second piston 24 has multiple sealing rings 25 to enhance its sealing performance and prevent the buffer solution and the buffer gas 27 from mixing. The damper 18 and the buffer spring 17 form a multi-stage buffer to adapt to the impact force of falling rocks, thereby increasing the service life of the device.

[0025] By simultaneously adjusting the rotation of two motors 30 to drive the rotation of two gears 32 (one motor 30 rotates forward and the other motor 30 rotates in reverse), the meshing of gears 32 and half gears 35 causes the connecting shaft 34 to rotate, which in turn drives the connecting seat 33 and the adjustable stone barrier 28 to rotate, thereby changing the tilt angle of the adjustable stone barrier 28 and causing the piled stones to slide down the slope 5 to the ground 9, achieving rapid clearing, preventing safety accidents when manually clearing on the slope 5, reducing manual risks, and making the stone clearing work safer;

[0026] The base 29 is cast at the intersection of the slope 5 and the ground 9, making the structure of the base 29 more stable and solid; the second hinge seat 20 is fixed to the ground 9 on both sides by multiple ground nails 36, making the structure of the second hinge seat 20 more stable and solid.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A slope rockfall prevention device for geological disasters, characterized by: The system includes a fixed rock-blocking structure and multiple sets of passive rock-blocking structures. The fixed rock-blocking structure includes a first rock-blocking net and several first anchor rods. One end of each first anchor rod is fixed to the first rock-blocking net, and the remaining part is inserted into the slope to attach and fix the first rock-blocking net to the slope. Multiple sets of the passive rock-blocking structures are arranged sequentially from left to right. Each passive rock-blocking structure includes several frames located at the bottom of the slope. The bottom sides of each frame are hinged with second anchor rods inserted into the slope. A second rock-blocking net is installed inside the frame, and a buffer mechanism is provided between the frame and the ground.

2. The geological disaster slope surface stone blocking device according to claim 1, characterized in that: The buffer mechanism includes a first link, a second link, and a third link. The lower end of the first link has a sleeve, the upper end of the second link is inserted into the sleeve, and the upper end of the second link has an outwardly extending step. The lower end of the sleeve has an inwardly bent limiting ring for the lower end of the step to abut against. A buffer spring is provided between the upper end of the step and the upper end of the sleeve. A damper is provided between the second link and the third link. The frame is provided with a first hinge seat that is hinged to the upper end of the first link, and the lower end of the third link is hinged to a second hinge seat located on the ground.

3. The geological disaster slope surface stone blocking device according to claim 2, characterized in that: The damper includes a housing and a piston rod extending through the housing. The upper end of the piston rod is fixed to the lower end of the second connecting rod. A first piston is provided at the lower end of the piston rod. A second piston is provided in the lower part of the housing. Multiple sealing rings are fitted around the outer ring of the second piston. A buffer fluid is provided in the housing above the second piston, and a buffer gas is provided in the housing below the second piston.

4. The geological disaster slope surface stone blocking device according to claim 1 or 2 or 3, characterized in that: Each frame is equipped with an adjustable bollard below it. The adjustable bollard can block or expose the square opening formed by the lower end of the frame, the two second anchor rods, and the slope. The adjustable bollard is equipped with a base on both the left and right sides below it. The base is equipped with a motor and a bearing seat. The motor shaft is fitted with a gear, and the bearing seat contains a bearing. Multiple connecting seats are welded and fixed to the lower part of the adjustable bollard. A connecting shaft is welded through the multiple connecting seats. The two ends of the connecting shaft are respectively inserted into the corresponding bearings and welded and fixed to the inner ring of the bearings. The connecting shaft is equipped with a half gear that meshes with the gear.

5. The geological disaster slope surface stone blocking device according to claim 4, characterized in that: The base is cast at the intersection of the slope and the ground.

6. The geological disaster slope surface stone blocking device according to claim 2, characterized in that: The second hinge seat is fixed to the ground on both the left and right sides by multiple ground nails.

7. The geological disaster slope surface stone blocking device according to claim 3, characterized in that: One end of the first anchor rod is fixed to the first rockfall barrier by welding, the damper and the third connecting rod are fixed by welding, and the upper end of the piston rod is fixed to the lower end of the second connecting rod by welding.

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