Geologic disaster landslide gravel blocking structure
By setting up a reel and pad structure on the landslide, and using a combination of movable bearings and lead screws, the covering net can slide from the top of the slope to the bottom, solving the problem of uncontrollable rock sliding on the slope and achieving full coverage protection of the landslide slope.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-04-21
AI Technical Summary
In existing technologies, the sliding of gravel on the upper part of the slope cannot be effectively controlled, causing the protective netting at the bottom of the slope to fail in large-scale landslide areas.
The structure uses a reel and pad block to cover the landslide surface by winding the covering net and using a combination of movable bearings and lead screws, thus achieving effective protection.
The covering netting can completely cover the landslide slope, effectively preventing rockfalls and improving the protection effect in large landslide areas.
Smart Images

Figure CN224148572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of landslide debris barrier technology, and in particular to a landslide debris barrier structure for geological disasters. Background Technology
[0002] Landslides are a serious natural disaster. Common methods to prevent landslides include setting up retaining walls, vegetation restoration and soil stabilization measures, controlling water flow and drainage systems, unloading and counter-pressure.
[0003] For example, a landslide debris barrier structure, publication number CN222251818U, involves installing concrete blocks at two designated locations. The base is then connected to the concrete blocks using tools such as studs or by pouring. Next, the uprights are fitted onto the outer surface of the base. The height of the sliding rod and U-shaped plate is adjusted. The threaded ring moves on the outer surface of the screw, pressing the side with the rubber disc against the outer surface of the groove rod, thus fixing the position between the sliding rod and the groove rod. Then, the bolts are rotated to move within the sliding rod and the inner wall of the L-shaped block, pushing the U-shaped plate. Simultaneously, two positioning blocks on one side of the U-shaped plate slide on both sides of the sliding rod, pressing one side of each U-shaped plate against the outer surface of the uprights, further reinforcing the position and angle between the uprights and the base. Then, two round rods at the bottom of the two groove blocks are inserted into the two through holes at the adjacent ends of the two U-shaped plates. Finally, a protective net is fixed between the two uprights using tools such as studs, thus blocking the landslide debris.
[0004] However, the protective netting installed at the bottom of the slope only intercepts falling rocks. This only stops rocks rolling down from the slope surface and cannot effectively control the sliding of rocks on the slope itself. In large landslide areas, rocks in the upper and middle parts of the slope may still slide, causing localized protection failures. Utility Model Content
[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a geological disaster landslide debris barrier structure.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a landslide debris barrier structure for geological disasters, comprising two reels for installation at the top of the slope and two pads for installation at the bottom of the slope, with one reel corresponding to one pad. A lead screw is detachably mounted on the upper surface of each pad, and a movable bearing is threaded onto the surface of the lead screw. A threading plate is fixedly mounted on the outer edge of the outer ring of the movable bearing. One end of the traction line wound on the reel is connected to the threading plate on the corresponding pad. A spool is provided between the two reels, and a covering net for covering the landslide surface is wound on the surface of the spool. Connecting plates for mounting the traction line on the reels are movably mounted at both ends of the spool.
[0007] Preferably, both the reel and the pad are provided with a concrete base for embedding in the landslide surface.
[0008] Preferably, a lower bearing is embedded in the upper surface of the pad, the inner ring of the lower bearing is inserted into the bottom end of the lead screw, and the end face of the inner ring of the lower bearing extends upward and a positioning pin for insertion into the lead screw is provided through the surface of the extended portion.
[0009] Preferably, an arc-shaped plate is fixedly installed at the bottom of the outer ring of the movable bearing, and positioning holes are provided at both ends of the upper surface of the arc-shaped plate. The upper surface of the pad is threaded with positioning bolts for insertion into the positioning holes.
[0010] Preferably, a stud is fixedly installed on the outer ring of the movable bearing above the threading plate.
[0011] Preferably, a connecting plate is rotatably connected to one side of the connecting plate, and an internally threaded cap that is inserted into the outer side of the connecting plate is threaded to either end of the reel.
[0012] Preferably, the surface of the connecting plate has a rope-passing hole for being fitted onto the traction line and a slot for being fitted onto the stud.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, one side of the covering net wrapped around the surface of the roll is fixed at the top of the landslide. The roll is automatically slid down to the two lead screws by using the connecting plate and the traction line. The movable bearing is moved to the bottom of the lead screw by rotating it again, so that the roll can be lowered to the bottom of the landslide and the covering net can completely cover the landslide surface, thus achieving effective protection.
[0015] 2. In this utility model, by disconnecting the traction line from the connecting plate, the traction line can be wound up and reused by rotating the reel. The cover net is cut along the reel at the bottom of the slope, and the bottom edge of the cut cover net is fixed to the bottom of the landslide slope. The reel is rotated to make the inner thread cover separate from the connecting plate on the connecting plate, so that personnel can take out the reel and wait for the next laying of the cover net. Attached Figure Description
[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a landslide debris barrier structure for geological disasters;
[0017] Figure 2 This utility model provides a structural schematic diagram of a rock-blocking structure for landslides in geological disasters.
[0018] Figure 3 This utility model provides a structural schematic diagram of a landslide debris barrier block for geological disasters;
[0019] Figure 4 This utility model provides a structural schematic diagram of a connecting plate for a landslide debris barrier structure in geological disasters.
[0020] Legend: 1. Winding reel; 2. Covering net; 3. Reel; 4. Connecting disc; 5. Lead screw; 6. Concrete base; 7. Pad; 8. Lower bearing; 9. Locating pin; 10. Locating bolt; 11. Movable bearing; 12. Stud; 13. Curved plate; 14. Locating hole; 15. Internal threaded cap; 16. Connecting plate; 17. Rope hole; 18. Groove; 19. Threading plate. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] like Figure 1-4As shown, a landslide debris barrier structure includes two reels 1 for installation at the top of the slope and two blocks 7 for installation at the bottom of the slope. Both the reels 1 and blocks 7 have concrete bases 6 at their bottoms for embedding into the landslide surface, ensuring the stability of the reels 1 and blocks 7. Each reel 1 corresponds to one block 7. A lead screw 5 is detachably mounted on the upper surface of each block 7. A movable bearing 11 is threaded onto the surface of the lead screw 5. A threaded plate 19 is fixedly mounted on the outer edge of the outer ring of the movable bearing 11. One end of the traction line wound on the reel 1 is connected to the threaded plate 19 on the corresponding block 7. In use, with the lead screw 5 held firmly and not rotating, rotating the inner ring of the movable bearing 11 allows the movable bearing 11 to rise and fall on the lead screw 5, thus adjusting the height of the threading plate 19. This ensures that the traction line released from the winding reel 1 does not adhere to the landslide surface, and the stable winding reel 1 and threading plate 19 ensure the traction line remains taut. A reel 3 is positioned between the two winding reels 1. The surface of the reel 3 is wrapped with a covering net 2 for covering the landslide surface, and connecting plates 16 are movably installed at both ends of the reel 3 for mounting the traction line on the winding reel 1. By straightening the two taut traction lines, the connecting plates 16 drive the reel 3 to slide. Figure 1 The traction lines on the two reels 1 shown are suspended above the landslide surface. Therefore, the reels 3 will not be affected by the rocks on the landslide surface when they slide down. In actual operation, one side of the covering net 2 wrapped around the surface of the reels 3 is fixed at the top of the landslide. The connecting plate 16 and the traction line are used to make the reels 3 slide down automatically to the two screw rods 5. Then, by rotating the movable bearing 11 again, the movable bearing 11 is moved to the bottom of the screw rod 5, so that the reels 3 can be lowered to the bottom of the landslide. This allows the covering net 2 to completely cover the landslide surface and achieve effective protection.
[0024] To facilitate the disassembly and assembly of the lead screw 5: a lower bearing 8 is embedded in the upper surface of the pad 7. The inner ring of the lower bearing 8 is inserted into the bottom end of the lead screw 5. The end face of the inner ring of the lower bearing 8 extends upward, and a positioning pin 9 for insertion with the lead screw 5 is provided through the extended part. By inserting the bottom end of the lead screw 5 into the lower bearing 8 and through the positioning pin 9 through the inner ring of the lower bearing 8 and the surface of the lead screw 5, the position of the bottom end of the lead screw 5 can be fixed. When the movable bearing 11 moves to the upper surface of the pad 7, by pulling out the positioning pin 9, the movable bearing 11 is gripped tightly to prevent it from rotating. By rotating the lead screw 5, the lead screw 5 can be raised relative to the movable bearing 11, thereby separating the lead screw 5 from the movable bearing 11 and completely removing it.
[0025] To ensure that the movable bearing 11 is fixed in position after the lead screw 5 is removed: an arc plate 13 is fixedly installed at the bottom of the outer ring of the movable bearing 11. Positioning holes 14 are opened at both ends of the upper surface of the arc plate 13. The upper surface of the pad 7 is threaded with positioning bolts 10 for insertion into the positioning holes 14. After the movable bearing 11 descends to the upper surface of the pad 7, the positioning bolts 10 pass through the positioning holes 14 and are threadedly connected to the upper surface of the pad 7, so that the movable bearing 11 can be completely fixed on the upper surface of the pad 7.
[0026] To facilitate the laying of the cover net 2 and the fixing of the bottom of the cover net 2: a stud 12 is fixedly installed on the outer ring of the movable bearing 11 above the threading plate 19; a connecting plate 4 is rotatably connected to one side of the connecting plate 16; an internal threaded cap 15 that inserts into the outer side of the connecting plate 4 is threaded to either end of the reel 3; the surface of the connecting plate 16 has a rope hole 17 for fitting onto the traction line and a slot 18 for fitting onto the stud 12; after the connecting plate 16 slides to the position of the movable bearing 11, the slot 18 on the connecting plate 16 is used to fit onto the stud 12. The connecting plate 16 is fixed to the movable bearing 11 by installing a nut on the stud 12 and pressing the nut against the connecting plate 16. Then, the connection between the traction line and the connecting plate 16 is released, and the traction line can be wound up and reused by rotating the reel 1. The covering net 2 is cut along the reel 3 at the bottom of the slope, and the bottom edge of the cut covering net 2 is fixed to the bottom of the landslide slope. The reel 3 is separated from the connecting plate 4 on the connecting plate 16 by rotating the inner thread cover 15, so that personnel can take out the reel 3 and wait for the next laying of the covering net 2.
[0027] Working principle: at the top and bottom of the landslide, according to Figure 1 The setup includes a reel 1 and a pad 7. The lead screw 5 is vertically fixed using a positioning pin 9 and a lower bearing 8. One side of the covering net 2 wound on the reel 3 is fixed to the top of the slope, and connecting plates 16 are installed at both ends of the reel 3. With the lead screw 5 held firmly and not rotating, rotating the inner ring of the movable bearing 11 allows the movable bearing 11 to climb a certain height on the lead screw 5. One end of the traction line wound on the reel 1 passes through the rope hole 17 on the corresponding end connecting plate 16 of the reel 3 and is then connected to the movable bearing 7 above the mating pad 7. The threading plate 19 on the movable bearing 11, along with the sturdy winding reel 1 and the threading plate 19, ensures the traction line is taut. By straightening the two taut traction lines, the connecting plate 16 drives the winding shaft 3 to slide to the movable bearing 11. During the movement of the winding shaft 3, the covering net 2 is released to cover the landslide slope. By rotating the movable bearing 11 again, the movable bearing 11 moves to the bottom of the screw 5, allowing the winding shaft 3 to descend to the bottom of the landslide slope. This ensures that the covering net 2 completely covers the landslide slope, achieving effective protection.
[0028] 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 other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A geological disaster landslide rock debris blocking structure, characterized in that: It includes two reels (1) for installation at the top of the slope and two pads (7) for installation at the bottom of the slope. Each reel (1) is assigned to one pad (7). A lead screw (5) is detachably installed on the upper surface of the pad (7). A movable bearing (11) is threaded onto the surface of the lead screw (5). A threading plate (19) is fixedly installed on the outer side of the outer ring of the movable bearing (11). One end of the traction line wound on the reel (1) is connected to the threading plate (19) on the corresponding pad (7). A spool (3) is provided between the two reels (1). A covering net (2) for covering the landslide surface is wound on the surface of the spool (3), and connecting plates (16) for sleeved on the traction line on the reel (1) are movably installed at both ends of the spool (3).
2. The geological disaster landslide rock debris blocking structure according to claim 1, characterized in that: The bottom of both the reel (1) and the pad (7) is provided with a concrete base (6) for embedding on the landslide surface.
3. The geological disaster landslide rock debris blocking structure according to claim 1, characterized in that: The upper surface of the pad (7) is inlaid with a lower bearing (8). The inner ring of the lower bearing (8) is inserted into the bottom end of the lead screw (5). The inner ring of the lower bearing (8) extends upward and the surface of the extended part is provided with a positioning pin (9) for insertion into the lead screw (5).
4. The geological disaster landslide rock debris blocking structure according to claim 1, characterized in that: An arc-shaped plate (13) is fixedly installed at the bottom of the outer ring of the movable bearing (11). Positioning holes (14) are provided at both ends of the upper surface of the arc-shaped plate (13). Positioning bolts (10) for insertion into the positioning holes (14) are threaded on the upper surface of the pad (7).
5. The geological disaster landslide rock debris blocking structure according to claim 1, characterized in that: The outer ring of the movable bearing (11) is fixedly installed with a stud (12) above the threading plate (19).
6. The geological disaster landslide rock debris blocking structure according to claim 1, characterized in that: The connecting plate (16) is rotatably connected to a connecting disc (4) on one side, and each end of the roller (3) is threadedly connected to an internal threaded cap (15) that is inserted into the outer side of the connecting disc (4).
7. The geological disaster landslide rock debris blocking structure according to claim 6, characterized in that: The surface of the connecting plate (16) is provided with a rope hole (17) for being fitted onto the traction line, and the surface of the connecting plate (16) is provided with a slot (18) for being fitted onto the stud (12).
Citation Information
Patent Citations
Geologic disaster landslide gravel blocking structure
CN222251818U