An NPR interception system to resist high-impact rockfalls

Abstract

This invention relates to the field of rock strata protection and discloses an NPR (Natural Pressure Reduction) interception system for resisting high-impact-energy rockfalls. The system includes: multiple limiters connected by steel cables, and interconnected connecting cables; and anchor cables connected to the limiters, with a stabilizing mechanism at the other end. This invention provides multiple layers of protection, stabilizing the entire mountain. Combined with multiple fixing points and a mesh-like interception system, it can effectively intercept and buffer most rockfalls and minor landslides, thereby ensuring the safety and stability of the surrounding area.

Description

Technical Field

[0001] This invention relates to the field of rock protection, and more particularly to an NPR interception system for resisting high-impact-energy falling rocks. Background Technology

[0002] Rockfall refers to the phenomenon of rocks from a high place falling to the ground or low-lying areas due to gravity. Rockfalls occurring within areas of human activity can cause disasters. Rockfall is the simplest and most common form of landslide; any mountain will continuously experience rockfalls of varying sizes under the influence of gravity, wind, or other factors. The risk of rockfalls is particularly high during road construction and other operations, impacting the safety of lower areas. Existing protective mechanisms typically involve drilling multiple holes, inserting anchor piles, and then connecting them with steel cables for protection. However, the overall effectiveness is unsatisfactory. In large-area rockfalls, some sections may still detach, triggering a chain reaction and posing a certain safety hazard. Summary of the Invention

[0003] To address the technical problems that pose safety hazards, this invention provides an NPR interception system that resists falling rocks with high impact energy levels.

[0004] The present invention is achieved by the following technical solution: an NPR interception system for resisting high-impact-energy falling rocks, comprising: multiple limiters, steel cables connecting the multiple limiters, and interconnecting cables connecting the multiple steel cables; and an anchor cable connected to the limiters, the other end of which is connected to a stabilizing mechanism.

[0005] As a further improvement to the above solution, the limiter includes: a movable frame, one side of which is threadedly fitted with an installation plate, one side of which is connected to a plurality of expansion sleeves located within the rock strata, a spring six connected inside the expansion sleeve, and the other end of the spring six fixedly connected to an embedded cone that slidably engages with the expansion sleeve; a spring five, which is fixedly connected to the movable frame, and the other end of which is fixedly connected to an installation ring connected to the movable frame; an installation ring, which is fitted with the installation ring, and a functional plug connected to the middle of the installation ring; a pressure control box, both sides of which are fixedly connected to threaded sleeves that are threadedly fitted with the installation ring, and an auxiliary pipe fixedly connected to one side of the pressure control box; an installation sleeve, which is fitted with the installation plate, and the installation sleeve is connected to an anchor cable, one end of which is connected to the auxiliary pipe; an installation hole, which is provided on the movable frame, and one side of which is provided with a push ring, the push ring being threadedly fitted with a replacement sleeve connected to the movable frame; and a limiting ring, which is fixedly connected inside the movable frame, and inside which is a deformable sleeve that mates with the push ring.

[0006] As a further improvement to the above solution, multiple expansion plates are fixedly connected to the outside of the movable frame, and multiple fixing holes are provided on the expansion plates. The movable frame is filled with gas.

[0007] As a further improvement to the above solution, a mounting ring is fixedly connected to one side of the mounting ring, the mounting ring is threadedly connected to the threaded sleeve, and a pressure control tube is connected to one side of the movable frame.

[0008] As a further improvement to the above solution, the stabilizing mechanism includes: a friction sleeve disposed within the rock stratum, with a guide channel fixedly connected inside the friction sleeve; a movable box slidably mounted within the guide channel, with a winding roller fixedly connected between two movable boxes, and pressure control pipes located inside the movable boxes fixedly connected to both ends of the winding roller, with the anchor cable wound around the winding roller; a buffer unit fixedly connected to the movable box, and one side of the buffer unit fixedly connected to the friction sleeve; an energy dissipation unit connected to the movable box, and one side of the buffer unit fixedly connected to the friction sleeve; and a reinforcement unit cooperating with the winding roller and communicating with the buffer unit.

[0009] As a further improvement to the above solution, the buffer unit includes: a second spring, one end of which is fixedly connected to a movable box, and the other end of which is fixedly connected to a compression box fixedly connected to a friction sleeve; a second push rod is fixedly connected to one side of the movable box, and the other end of the second push rod is slidably sleeved with the compression box; a seventh spring located inside the compression box is fixedly connected to one end of the second push rod; a balance plate is fixedly connected to the other end of the seventh spring; a third spring fixedly connected to the compression box is fixedly connected to one side of the balance plate; a transmission box is fixedly connected to the compression box, and a partition box is provided in the middle of it; a conductive pipe connected to the compression box is connected to the transmission box; a third push rod is slidably sleeved with the partition box, and one end of which is located inside the transmission box; the other end of which is connected to a push sleeve slidably sleeved with the friction sleeve; a plurality of embedded cones are fixedly connected to one side of the push sleeve; and a plurality of stabilizing cones are fixedly connected to the embedded cones.

[0010] As a further improvement to the above solution, the energy dissipation unit includes: a spring, one end of which is fixedly connected to the movable box, and the other end of which is fixedly connected to a fixed frame that is fixedly connected to the friction sleeve; multiple winding rollers are provided, which are rotatably connected within the fixed frame, and both ends of the winding rollers are fixedly connected to dampers located within the fixed frame; and multiple sets of pull ropes, one set of which is fixedly connected to the movable box at one end and wound around the winding roller at the other end, and another set of pull ropes is wound between two winding rollers.

[0011] As a further improvement to the above solution, the reinforcement unit includes: a liquid guide tube, one end of which is connected to a volumetric tank fixedly connected to the friction sleeve, and the other end of which is connected to a movable cone. A mating sleeve is slidably fitted onto the outer wall of the movable cone, and multiple expansion cones are provided on the movable cone; a compression sleeve, which is fixedly connected to the volumetric tank, and a spring four is fixedly connected to one side of the compression sleeve. The other end of the spring four is fixedly connected to a push rod one that is slidably fitted onto the volumetric tank; and a pulling frame, which is fixedly connected to the winding roller and to the movable tank. One side of the pulling frame is fixedly connected to the push rod one.

[0012] As a further improvement to the above solution, a receiving groove is provided on the outer side of the friction sleeve, the pushing sleeve and the embedding cone are located in the receiving groove, and the embedding cone is inclined.

[0013] As a further improvement to the above solution, one end of the friction sleeve is connected to an adjustment cover, the mating sleeve is slidably sleeved with the adjustment cover, and the outer side of the movable box is provided with an auxiliary strip that cooperates with the guide channel.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Through the cooperation of multiple devices, multiple layers of protection can be provided to stabilize the entire mountain. Combined with multiple fixing points and mesh interception, it can intercept and buffer most rockfalls and minor landslides, thereby ensuring the safety and stability of the entire surrounding area.

[0016] 2. By using multiple individual devices, interception can be carried out in different areas and locations, adapting to different terrains and different types of laying needs, facilitating subsequent replacement, and reducing overall maintenance costs. Attached Figure Description

[0017] Figure 1 This is a top view of the entire invention;

[0018] Figure 2 This is a schematic diagram of the unit front view sectional view of the present invention;

[0019] Figure 3 This is a partial front sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the front sectional view of the embedded cone.

[0021] Figure 5 Left sectional view of the stabilizing mechanism;

[0022] Figure 6 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 7This is a top-view cross-sectional diagram of the limiter;

[0024] Figure 8 This is a schematic diagram of the friction sleeve from the left.

[0025] Explanation of key symbols:

[0026] 01. Limiter; 02. Steel cable; 03. Connecting cable; 11. Friction sleeve; 12. Pull rope; 13. Pulling frame; 14. Wrapping roller; 15. Fixing frame; 16. Spring 1; 17. Guide channel; 18. Moving box; 19. Push rod 1; 20. Pressure control tube; 21. Anchor cable; 22. Wrapping roller; 23. Spring 2; 24. Separator box; 25. Spring 3; 26. Spring 4; 27. Moving frame; 28. Spring 5; 29. ​​Mounting ring; 30. Functional plug; 31. Threaded sleeve; 32. Pressure control box; 33. Mounting hole; 34. Expansion sleeve; 35. Installation 36. Plate; 37. Auxiliary tube; 38. Mounting sleeve; 39. Embedded cone; 40. Spring six; 41. Mounting ring; 42. Push rod two; 43. Conducting box; 44. Pushing sleeve; 45. Push rod three; 46. Spring seven; 47. Conducting tube; 48. Embedded cone; 49. Compression sleeve; 50. Volume box; 51. Compression box; 52. Pushing ring; 53. Replacement sleeve; 54. Limiting ring; 55. Deformation sleeve; 56. Liquid guide tube; 58. Auxiliary strip; 59. Expansion plate; 61. Fixing hole; 62. Mating sleeve; 63. Moving cone; 64. Expansion cone. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example:

[0029] Please combine Figure 1-8 ,

[0030] An NPR (Non-Resistant Rockfall) interception system for resisting high-impact-energy rockfalls includes: multiple limiters 01, with steel cables 02 connected between them, and connecting cables 03 connecting the steel cables 02 to each other. The limiters 01 provide external limitation and connect the steel cables 02, while the connecting cables 03 connect the multiple steel cables 02 to form a mesh system for interception; an anchor cable 21 connected to the limiters 01, with a stabilizing mechanism connected to the other end of the anchor cable 21; the anchor cable 21 is pulled to ensure the balance of forces between the inner and outer rock layers; and the stabilizing mechanism provides internal friction limitation. After the stabilizing mechanism enters the rock layer, concrete is poured into the drilled holes for sealing and fixation.

[0031] The limiter 01 includes: a movable frame 27, one side of which is threadedly fitted with a mounting plate 35; one side of the mounting plate 35 is connected to multiple expansion sleeves 34 located within the rock strata; a spring 39 is connected inside each expansion sleeve 34; the other end of the spring 39 is fixedly connected to an embedded cone 38 that slidably engages with the expansion sleeve 34; the movable frame 27 limits and encloses the rock strata, and then, through the action of the mounting plate 35 and the expansion sleeves 34, connects to the surface rock strata to achieve limitation; a spring 28 is fixedly connected to the movable frame 27, and its other end is fixedly connected to a mounting ring 40 connected to the movable frame 27; the spring 28 connects the mounting ring 40 to the movable frame 27; a mounting ring 29 is fitted onto the mounting ring 40; a functional plug 30 is connected to the middle of the mounting ring 40; the functional plug 30 adjusts and controls the air pressure as needed. Box 32 has threaded sleeves 31 fixedly connected to both sides of the box, which are threaded together with the mounting ring 40. An auxiliary pipe 36 is fixedly connected to one side of the pressure control box 32. The pressure control box 32 is connected and installed. Mounting sleeve 37 is fitted with mounting plate 35 and connected to anchor cable 21. One end of anchor cable 21 is connected to auxiliary pipe 36. Mounting sleeve 37 is installed. Mounting hole 33 is set on the moving frame 27. One side is provided with a push ring 52. The push ring 52 is threaded together with a replacement sleeve 53 connected to the moving frame 27. Limiting ring 54 is fixedly connected inside the moving frame 27. Inside it is a deformable sleeve 55 that cooperates with the push ring 52. Mounting hole 33 is used for through installation, so that steel cable 02 connects the two limiters 01. Rotating push ring 52 causes deformable sleeve 55 to deform, thereby clamping and installing steel cable 02 more stably.

[0032] Multiple expansion plates 59 are fixedly connected to the outside of the movable frame 27. Multiple fixing holes 61 are provided on the expansion plates 59. The movable frame 27 is filled with gas. The expansion plates 59 increase the contact area with the rock strata. The fixing holes 61 provide multi-point auxiliary fixation.

[0033] A mounting ring is fixedly connected to one side of the mounting ring 40. The mounting ring is threadedly connected to the threaded sleeve 31. A pressure control tube is connected to one side of the movable frame 27. The mounting ring assists in the installation and ensures the operation. The pressure control tube controls the internal air pressure to be stable.

[0034] The stabilizing mechanism includes: a friction sleeve 11, which is installed within the rock stratum; a guide channel 17 is fixedly connected inside the friction sleeve 11; the friction sleeve 11 is further confined by a connection; a friction groove is provided on the outer side of the friction sleeve 11 to increase friction; the guide channel 17 provides confined guidance to achieve operational stability; a movable box 18, which is slidably sleeved within the guide channel 17; a winding roller 22 is fixedly connected between two movable boxes 18; pressure control pipes 20 located within the movable boxes 18 are fixedly connected to both ends of the winding roller 22; and an anchor cable 21 is wound around the winding roller 22. 2. When the limiter 01 moves, it drives the winding roller 222 to move, which in turn drives the moving box 18 to move on the guide channel 17. The buffer unit is fixedly connected to the moving box 18 and one side of it is fixedly connected to the friction sleeve 11. The energy dissipation unit is connected to the moving box 18 and one side of it is fixedly connected to the friction sleeve 11. The reinforcement unit cooperates with the winding roller 22 and is connected to the buffer unit. The buffer unit performs a certain buffering, the energy dissipation unit performs a certain energy dissipation and buffering, and the reinforcement unit performs a certain reinforcement.

[0035] The buffer unit includes: a second spring 23, one end of which is fixedly connected to the movable box 18, and the other end of which is fixedly connected to the compression box 50 fixedly connected to the friction sleeve 11; a push rod 41 is fixedly connected to one side of the movable box 18, and the other end of the push rod 41 is slidably sleeved with the compression box 50; a seventh spring 45 located inside the compression box 50 is fixedly connected to one end of the push rod 41; a balance plate is fixedly connected to the other end of the seventh spring 45; a third spring 25 fixedly connected to the compression box 50 is fixedly connected to one side of the balance plate; the second spring 23 provides a certain degree of buffering; the push rod 41 transmits the force of the moving movable box 18 to the seventh spring 45, and then the force is buffered and returned to its original position by the third spring 25; and a transmission box 42, which is fixedly connected to the compression box 50. A partition box 24 is provided, and a guide pipe 46 connected to the compression box 50 is connected to the conduction box 42. The conduction box 42 provides spatial limitation and isolation, while the liquid in the compression box 50 enters the conduction box 42 through the guide pipe 46, pressurizing the push rod 44. The push rod 44 is slidably sleeved with the partition box 24, with one end located inside the conduction box 42, and the other end connected to the push sleeve 43 which is slidably sleeved with the friction sleeve 11. Multiple embedding cones 47 are fixedly connected to one side of the push sleeve 43, and multiple stabilizing cones 51 are fixedly connected to the embedding cones 47. The movement of the push rod 44 drives the movement of the push sleeve 43 and the embedding cones 47, thereby squeezing the embedding cones 47 and the compression box 50 into the rock strata, further increasing the barrier and ensuring operation.

[0036] The energy dissipation unit includes: a spring 16, one end of which is fixedly connected to the movable box 18, and the other end of which is fixedly connected to a fixed frame 15 that is fixedly connected to the friction sleeve 11; multiple winding rollers 14, which are rotatably connected within the fixed frame 15; dampers located within the fixed frame 15 are fixedly connected to both ends of the winding rollers 14; and multiple sets of pull ropes 12, one end of which is fixedly connected to the movable box 18, and the other end of which is wound around the winding rollers 14; and another set of pull ropes 12 wound between two winding rollers 14. The spring 16 provides buffering. When dragged by external forces, it drives the pull ropes 12 to move, thereby driving the winding rollers 14 to rotate. The dampers convert kinetic energy into internal energy, providing buffering and reducing impact force, while ensuring the stability of the anchor cable 21, reducing damage, and ensuring subsequent protection.

[0037] The reinforcement unit includes: a liquid guide tube 56, one end of which is connected to a volume box 49 fixedly connected to the friction sleeve 11, and the other end of which is connected to a movable cone 63. A mating sleeve 62 is slidably sleeved on the outer wall of the movable cone 63. Multiple expansion cones 64 are provided on the movable cone 63. A compression sleeve 48 is fixedly connected to the volume box 49. A spring 26 is fixedly connected to one side of the compression sleeve 48. A push rod 19 slidably sleeved with the volume box 49 is fixedly connected to the other end of the spring 26. A pulling frame 13 is fixedly connected to the winding roller 22 and to the movable box 18. One side of the pulling frame 13 is fixedly connected to the push rod 19. During the movement of the winding roller 22, the pulling frame 13 and the push rod 19 are moved, thereby changing the space inside the volume box 49. The change is then transmitted through the liquid guide tube 56, causing the movable cone 63 and the expansion cone 64 to move and be confined.

[0038] The friction sleeve 11 has a receiving groove on its outer side. The pushing sleeve 43 and the embedding cone 47 are located in the receiving groove. The embedding cone 47 is inclined. The receiving groove accommodates and limits the friction sleeve. The inclined arrangement ensures the connection. One end of the friction sleeve 11 is connected to an adjusting cover. The mating sleeve 62 is slidably fitted with the adjusting cover. The outer side of the moving box 18 is provided with an auxiliary strip 58 that cooperates with the guide channel 17. The adjusting cover facilitates the operation of the interior, and the auxiliary strip 58 ensures the connection.

[0039] The implementation principle of this application embodiment is as follows:

[0040] During the initial installation, drilling is performed to allow the friction sleeve 11 to penetrate deep into the rock strata. The drilled area is then filled with concrete. After connecting the anchor cable 21 to the limiter 01, the expansion sleeve 34 and the embedded cone 38 are installed in the corresponding positions. Then, the moving frame 27 is moved to align the mounting hole 33 with the pushing ring 52. The steel cable 02 is then installed on the pushing ring 52 and the deformation sleeve 55. The moving frame 27 is then released to complete the installation. The extension plate 59 is then installed, and a large-area auxiliary installation is performed through the fixing hole 61. The cable 03 is then connected to the steel cable 02 to complete the laying and provide obstruction.

[0041] In the event of a rockfall or other danger, the rock strata come into contact with the mesh formed by the steel cable 02 and connecting cable 03, causing the moving frame 27 to tend to move. At this time, initial stabilization is achieved through the expansion sleeve 34, installation ring 29, and extension plate 59. The mesh decomposes the force, achieving stability. In the event of a severe rockfall, the external rock strata cause the limiter 01 to move, which in turn causes the anchor cable 21 to deform and move. Through the friction between the concrete and the rock, a second layer of barrier is formed to prevent the rock strata from falling. During the movement of the anchor cable 21, the force is transmitted through the anchor cable 21 to the pulling frame 13 and the moving box 18, causing the pulling frame 13 and the moving box 18 to move. During the movement of the moving box 18, the force drives the push rod 41 to move, causing the springs 23, 75, and 325 to be compressed. The compression reduces the impact force and provides some buffering. At the same time, the liquid inside the push rod 41 enters the conduction box 42 through the guide pipe 46, causing the push rod 44 to drive the push sleeve 43 to move. This causes the embedded cone 47 and the compression box 50 to move and enter the rock layer to achieve engagement, further increasing damping and ensuring the stability of the entire system. Meanwhile, the movement of the pull frame 13 drives the push rod 19 to move, and the spring 26 is compressed for buffering. The liquid inside passes through the liquid guide pipe 56 to move the mating sleeve 62 to reduce impact and further stabilize the system. During the movement of the moving box 18, the pull rope 12 moves, which in turn causes the winding roller 14 to rotate. Under the action of the damper, buffering is performed to reduce the impact force of the entire system and thus ensure the stability of the system.

[0042] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An NPR interception system for resisting high-impact-energy falling rocks, characterized in that, include: Limiter (01), which is provided in multiple ways, and steel cables (02) are connected between the multiple limiters (01), and connecting cables (03) are connected between the multiple steel cables (02). An anchor cable (21) is connected to a limiter (01), and the other end of the anchor cable (21) is connected to a stabilizing mechanism; The limiter (01) includes: The movable frame (27) has a mounting plate (35) threaded onto one side. A plurality of expansion sleeves (34) located in the rock strata are connected to one side of the mounting plate (35). A spring six (39) is connected inside the expansion sleeve (34). An embedded cone (38) that slides with the expansion sleeve (34) is fixedly connected to the other end of the spring six (39). Spring 5 (28) is fixedly connected to the movable frame (27), and its other end is fixedly connected to a mounting ring (40) connected to the movable frame (27). Mounting ring (29), which is fitted with mounting ring (40), and a functional plug (30) is connected in the middle of the mounting ring (29). The pressure control box (32) has threaded sleeves (31) that are threaded to the mounting ring (40) on both sides, and an auxiliary pipe (36) is fixedly connected to one side of the pressure control box (32). The mounting sleeve (37) is fitted onto the mounting plate (35), and the mounting sleeve (37) is connected to the anchor cable (21), one end of which is connected to the auxiliary pipe (36); Mounting hole (33) is provided on the movable frame (27), and a push ring (52) is provided on one side. The push ring (52) is threadedly fitted with a replacement sleeve (53) connected to the movable frame (27). The limiting ring (54) is fixedly connected inside the movable frame (27), and a deformable sleeve (55) that cooperates with the push ring (52) is provided inside it. Multiple expansion plates (59) are fixedly connected to the outside of the movable frame (27), and multiple fixing holes (61) are provided on the expansion plates (59). The movable frame (27) is filled with gas. One side of the mounting ring (40) is fixedly connected to a mounting ring (29), the mounting ring (40) is threadedly connected to a threaded sleeve (31), and one side of the movable frame is connected to a pressure control tube; The stabilizing mechanism includes: Friction sleeve (11) is set inside the rock stratum, and a guide channel (17) is fixedly connected inside the friction sleeve (11). The movable box (18) is slidably sleeved in the guide channel (17). A winding roller (22) is fixedly connected between the two movable boxes (18). A pressure control pipe (20) located in the movable box (18) is fixedly connected to both ends of the winding roller (22). The anchor cable (21) is wound around the winding roller (22). A buffer unit is fixedly connected to the movable box (18), and one side of it is fixedly connected to the friction sleeve (11); The energy dissipation unit is connected to the movable box (18), and one side of it is fixedly connected to the friction sleeve (11); The reinforcement unit is in conjunction with the winding roller (22) and is connected to the buffer unit.

2. The NPR interception system for resisting high-impact-energy falling rocks as described in claim 1, characterized in that, The buffer unit includes: Spring 2 (23) has one end fixedly connected to the movable box (18) and the other end fixedly connected to the compression box (50) fixedly connected to the friction sleeve (11). Push rod 2 (41) is fixedly connected to one side of the movable box (18). The other end of push rod 2 (41) is slidably sleeved with the compression box (50). One end of push rod 2 (41) is fixedly connected to spring 7 (45) located inside the compression box (50). The other end of spring 7 (45) is fixedly connected to a balance plate. One side of the balance plate is fixedly connected to spring 3 (25) fixedly connected to the compression box (50). A transmission box (42) is fixedly connected to a compression box (50), and a partition box (24) is provided in the middle. A connecting pipe (46) connected to the compression box (50) is connected to the transmission box (42). Push rod three (44) is slidably sleeved with the partition box (24), and one end of it is located in the transmission box (42), and the other end is connected to the push sleeve (43) which is slidably sleeved with the friction sleeve (11). Multiple embedded cones (47) are fixedly connected to one side of the push sleeve (43), and multiple stabilizing cones (51) are fixedly connected to the embedded cones (47).

3. The NPR interception system for resisting high-impact-energy falling rocks as described in claim 1, characterized in that, The energy dissipation unit includes: Spring 1 (16) has one end fixedly connected to the movable box (18), and the other end fixedly connected to a fixed frame (15) fixedly connected to the friction sleeve (11). Multiple winding rollers (14) are provided and are rotatably connected in a fixed frame (15). Both ends of the winding rollers (14) are fixedly connected to dampers located in the fixed frame (15). The pull rope (12) is provided in multiple sets. One end of one set is fixedly connected to the moving box (18), and the other end is wound around the winding roller (14). The other set of pull ropes (12) is wound between the two winding rollers (14).

4. The NPR interception system for resisting high-impact-energy falling rocks as described in claim 1, characterized in that, The reinforcement unit includes: A liquid guide tube (56) is connected at one end to a volume box (49) that is fixedly connected to a friction sleeve (11). The other end of the liquid guide tube (56) is connected to a movable cone (63). A mating sleeve (62) is slidably sleeved on the outer wall of the movable cone (63). Multiple expansion cones (64) are provided on the movable cone (63). Compression sleeve (48) is fixedly connected to volume box (49), and spring four (26) is fixedly connected to one side of it. The other end of spring four (26) is fixedly connected to push rod one (19) which is slidably sleeved with volume box (49). A pull frame (13) is fixedly connected to a winding roller (22) and to a moving box (18). One side of the pull frame (13) is fixedly connected to a push rod (19).

5. The NPR interception system for resisting high-impact-energy falling rocks as described in claim 2, characterized in that, The friction sleeve (11) has a receiving groove on its outer side, and the push sleeve (43) and the embedding cone (47) are located in the receiving groove. The embedding cone (47) is inclined.

6. The NPR interception system for resisting high-impact-energy falling rocks as described in claim 4, characterized in that, One end of the friction sleeve (11) is connected to an adjustment cover, the mating sleeve (62) is slidably sleeved with the adjustment cover, and the outer side of the movable box (18) is provided with an auxiliary strip (58) that cooperates with the guide channel (17).

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