Strip mine side slope rolling stone protection device

By introducing buffer components and multiple protective layers into the rockfall protection device for open-pit mine slopes, the problem of insufficient steel rope elasticity was solved, achieving effective protection against rocks of different sizes and speeds, and improving the adaptability and safety of the device.

CN224077996UActive Publication Date: 2026-04-03HEBEI IRON & STEEL GRP MINING +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing rockfall protection devices for open-pit mine slopes suffer from limited steel rope elasticity and a lack of sufficient buffer zone, which can cause rocks to bounce or cause secondary damage after impact, reducing the practicality and safety of the devices.

Method used

The device employs a buffer assembly, including hydraulic rods and shock-absorbing springs, combined with a double-layer steel wire mesh and a protective net. The hydraulic rods absorb and disperse the impact force of the rolling stones, while the shock-absorbing springs provide cushioning. Multiple protective layers and pressure detectors enable real-time monitoring and early warning, improving the adaptability and safety of the device.

Benefits of technology

It effectively absorbs and disperses the impact force of rolling stones, reduces direct damage to the slope, improves the adaptability and safety of the device, ensures the protection of the slope and adjacent facilities, and enhances protective performance and flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mine slope protection, in particular to a strip mine slope rolling stone protection device which comprises a supporting seat, an inserting hole is formed in the top of the supporting seat, a fixing column is inserted into the inserting hole, a fixing block is fixedly connected to one side of the fixing column, a hole is formed in one side of the fixing block, and the hole is communicated with the hole. A connecting block is inserted into the hole, a buffer assembly is arranged on one side of the connecting block, the buffer assembly comprises a connecting disc, the connecting disc is fixedly connected to one side of the connecting block, a supporting rod is fixedly connected to one side of the connecting disc, and a mounting plate is fixedly connected to one end of the supporting rod; and two hydraulic rods are fixedly connected to one side of the mounting plate. According to the strip mine side slope rolling stone protection device, by installing the buffering assembly, when a rolling stone collides with a side slope, the collision force of the rolling stone can be absorbed and dispersed through cooperation of a hydraulic rod and a damping spring, and then the adaptability and flexibility of the protection device are improved.
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Description

Technical Field

[0001] This utility model relates to the field of mine slope protection technology, specifically to a rockfall protection device for open-pit mine slopes. Background Technology

[0002] In the complex operating environment of open-pit mining, ensuring mining safety is one of the most important tasks. Therefore, the design and implementation of slope rockfall protection systems in mines are particularly important. These systems are designed to effectively intercept falling rocks during their descent, thereby preventing them from falling to the ground and causing incalculable losses such as personal injury, equipment damage, or environmental destruction.

[0003] Existing rockfall protection devices for open-pit mine slopes are usually secured by steel cables. However, due to the limited elasticity of steel cables, they often lack sufficient buffer zone when protecting against rocks of different sizes and speeds. This can cause the rocks to bounce or cause secondary damage after impact, thus reducing the practicality of the device in use. Utility Model Content

[0004] The purpose of this utility model is to provide a rockfall protection device for open-pit mine slopes, addressing the problem mentioned in the background art where steel cables are typically used for securing the protection device. However, due to the limited elasticity of steel cables, insufficient buffer area is often lacking when protecting against rocks of varying sizes and speeds, leading to potential rebound or secondary injury after impact. To achieve the above objective, this utility model provides the following technical solution: A rockfall protection device for open-pit mine slopes, comprising a support base, with an insertion hole at the top of the support base. A fixing post is inserted into the insertion hole, and a fixing block is fixedly connected to one side of the fixing post. A hole is formed on one side of the fixing block, and a connecting block is inserted into the hole. A buffer assembly is provided on one side of the connecting block, including a connecting disc fixedly connected to one side of the connecting block. A support rod is fixedly connected to one side of the connecting disc, and a mounting plate is fixedly connected to one end of the support rod. Two hydraulic rods are fixedly connected to one side of the mounting plate. The two hydraulic rods are symmetrically distributed around the center point of the mounting plate. Shock-absorbing springs are sleeved on the outside of each of the two hydraulic rods. A base plate is fixedly connected to one side of the two hydraulic rods. A fixing component is fixedly connected to one side of the base plate. By installing a buffer assembly, the impact force of rolling stones can be absorbed and dispersed when they hit the slope, reducing the direct damage to the slope caused by rolling stones. At the same time, the hydraulic rods enable the protective device to better cope with rolling stones of different sizes and speeds, thereby improving the adaptability and flexibility of the protective device.

[0005] In a further preferred embodiment, locking blocks are fixedly connected to both sides of the fixed column, and a steel wire mesh is locked to one side of each locking block. The locking blocks are used to lock the steel wire mesh. Hooks are fixedly connected to both sides of the fixed column, and connectors are welded inside the hooks. A protective net is fixedly connected to one side of each connector. By setting two protective layers, the steel wire mesh and the protective net, a double protection is provided for the open-pit mine slope. Even if one protective layer is damaged, the other layer can still continue to function, ensuring the safety of the slope and surrounding facilities. This enhances the protective performance, flexibility, adaptability, and safety of the open-pit mine slope rockfall protection device.

[0006] More preferably, the side surface of the fixed column is fixedly connected with multiple stiffening plates, the bottom of the support base is fixedly connected with a steel plate, the bottom of the steel plate is provided with a concrete layer, the top of the steel plate is provided with a threaded hole, and the threaded hole is internally threaded with a threaded component. By setting up structural components such as stiffening plates, steel plates, and concrete layers, multiple protective layers can be formed for the device. These protective layers can jointly resist the impact of rolling stones, and the use of multiple components allows the device to be installed and used according to actual needs under different terrain and geological conditions, thereby improving the flexibility and adaptability of the device.

[0007] More preferably, the base plate is wavy in shape, and a pressure detector is fixedly connected to one side of the base plate. When the wavy base plate is impacted by rolling stones, its wavy shape can guide the impact force to be dispersed in multiple directions, reducing the impact pressure in one direction. Moreover, the pressure detector can monitor the pressure change of the hydraulic rod when it is impacted by rolling stones in real time and transmit its data in a timely manner, thereby improving the safety and reliability of the device.

[0008] More preferably, a warning sign is fixedly connected to one side of the fixed column, and the exterior of the warning sign is provided with fluorescent material. The combination of the warning sign and the fluorescent material enables the warning sign to emit a bright light at night or in low-light environments, reminding people to pay attention to the risk of falling stones around them, thereby improving the safety of the device.

[0009] Preferably, both the wire mesh and the protective net are double-layered, with the protective net positioned above the wire mesh. The size of the protective net's mesh openings decreases relative to the wire mesh. The double-layered protection and the decreasing mesh size of the protective net together enhance the protection level of the device, enabling it to flexibly handle rolling stones of various sizes and shapes, effectively blocking and dispersing the impact force of the rolling stones, providing a solid protective barrier for the slope and adjacent facilities, and ensuring improved overall safety.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] In this invention, by installing a buffer component, the force of the impact of rolling stones on the slope can be absorbed and dispersed through the cooperation of hydraulic rods and shock-absorbing springs, reducing the direct damage of rolling stones to the slope. At the same time, the hydraulic rods enable the protective device to better cope with rolling stones of different sizes and speeds, thereby improving the adaptability and flexibility of the protective device.

[0012] In this invention, when the wave-shaped base plate is impacted by rolling stones, its wave shape can guide the impact force to be dispersed in multiple directions, reducing the impact pressure in one direction. Furthermore, the pressure detector can monitor the pressure change of the hydraulic rod when it is impacted by rolling stones in real time and transmit the data in a timely manner, thereby improving the safety and reliability of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This utility model Figure 2 A magnified three-dimensional structural diagram at point A in the middle;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0017] Figure 5 This is a partial three-dimensional magnified structural diagram of the present invention.

[0018] In the diagram: 1. Support base; 2. Insertion hole; 3. Fixing column; 4. Fixing block; 5. Hole; 6. Connecting block; 7. Buffer assembly; 8. Locking block; 9. Steel wire mesh; 10. Hook; 11. Connector; 12. Protective net; 13. Rib plate; 14. Steel plate; 15. Concrete layer; 16. Threaded hole; 17. Threaded part; 18. Pressure detector; 19. Warning sign; 20. Fluorescent material; 701. Connecting plate; 702. Support rod; 703. Mounting plate; 704. Hydraulic rod; 705. Shock-absorbing spring; 706. Base plate; 707. Fixing part. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a rockfall protection device for open-pit mine slopes, including a support base 1. The top of the support base 1 has an insertion hole 2. A fixing column 3 is inserted into the insertion hole 2. A fixing block 4 is fixedly connected to one side of the fixing column 3. A hole 5 is opened on one side of the fixing block 4. A connecting block 6 is inserted into the hole 5. A buffer assembly 7 is provided on one side of the connecting block 6. The buffer assembly 7 includes a connecting plate 701, which is fixedly connected to one side of the connecting block 6. A support rod 702 is fixedly connected to one side of the connecting plate 701. One end of the support rod 702 is fixedly connected to a mounting plate 703. Two hydraulic rods 704 are fixedly connected to one side of the mounting plate 703. The two hydraulic rods 704 are symmetrically distributed around the center point of the mounting plate 703. Shock-absorbing springs 705 are respectively sleeved on the outside of the two hydraulic rods 704. A base plate 706 is fixedly connected to one side of the two hydraulic rods 704. A fastener 707 is fixedly connected to one side of the base plate 706. Clamping blocks 8 are fixedly connected to both sides of the fixing column 3. A wire mesh 9 is clamped to one side of the clamping block 8. The clamping block 8 is used to clamp the wire mesh. The protective netting 9 and the fixed post 3 are respectively fixedly connected to hooks 10 on both sides. Connectors 11 are welded inside the hooks 10, and a protective netting 12 is fixedly connected to one side of the connector 11. After the device is installed, all components are in a stable state. When a rockfall impacts the device, it first contacts the protective netting 12. Because of its appropriately sized mesh, the protective netting 12 can effectively block and disperse the impact force of the rockfall. If the impact force of the rockfall is large enough to penetrate the protective netting 12, it will continue to contact the wire mesh 9. The wire mesh 9, due to its material... Due to its unique structure, it can further absorb and disperse the impact force of the rolling stones. During the impact, the rolling stones will come into contact with the buffer component 7. At this time, the hydraulic rod 704 and the shock-absorbing spring 705 will work together. The hydraulic rod 704 can absorb the impact energy of the rolling stones and convert and dissipate the energy through its internal hydraulic mechanism. At the same time, the shock-absorbing spring 705 can also buffer the impact and reduce the damage of the rolling stones to the device and the slope. After the rolling stones impact, the hydraulic rod 704 and the shock-absorbing spring 705 will automatically reset, ready to receive the next impact.

[0021] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, multiple stiffening plates 13 are fixedly connected to the side surface of the fixed column 3, and a steel plate 14 is fixedly connected to the bottom of the support base 1. A concrete layer 15 is provided at the bottom of the steel plate 14, and a threaded hole 16 is opened at the top of the steel plate 14. A threaded part 17 is connected to the threaded hole 16. The bottom plate 706 is wavy in shape, and a pressure detector 18 is fixedly connected to one side of the bottom plate 706. During the impact of the rolling stone, it is first blocked and dispersed by the protective net 12 and the wire mesh 9. During the blocking process, the hydraulic rod 704 and the shock-absorbing spring 705 will work together to absorb and dissipate the impact energy of the rolling stone. At the same time, the pressure detector 18 monitors the pressure borne by the hydraulic rod 704 in real time and triggers the early warning system when necessary.

[0022] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a warning sign 19 is fixedly connected to one side of the fixed post 3. The exterior of the warning sign 19 is covered with fluorescent material 20. Both the wire mesh 9 and the protective net 12 are double-layered nets, with the protective net 12 located above the wire mesh 9. The size of the mesh openings of the protective net 12 decreases relative to the wire mesh 9. Throughout the process, the warning sign 19 and the fluorescent material 20 on its exterior provide clear warning information. Personnel can observe the warning sign 19 to understand the risk of falling stones and take appropriate preventive measures to avoid accidents.

[0023] The method of use and advantages of this utility model: The working process of this open-pit mine slope rockfall protection device is as follows:

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, after the device is installed, all components are in a stable state. When a rockfall impacts the device, it first contacts the protective net 12. Due to the moderate size of its mesh openings, the protective net 12 can effectively block and disperse the impact force of the rockfall. If the impact force of the rockfall is large enough to penetrate the protective net 12, it will continue to contact the wire mesh 9. Due to the special properties of its material and structure, the wire mesh 9 can further absorb and disperse the impact force of the rockfall. During the impact, the rockfall will contact the buffer component 7. At this time, the hydraulic rod 704 and the shock-absorbing spring 705 will work together. The hydraulic rod 704 can absorb the impact energy of the rockfall and convert and dissipate the energy through its internal hydraulic mechanism. At the same time, the shock-absorbing spring 705 can also buffer the impact, reducing the damage of the rockfall to the device and the slope. Meanwhile, the pressure detector 18 monitors the pressure borne by the hydraulic rod 704 in real time and triggers the early warning system when necessary. After the rockfall impact, the hydraulic rod 704 and the shock-absorbing spring 705 will automatically reset, ready to receive the next impact.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for protection of a slope of an open pit mine against rolling stones, comprising a support base (1), characterized in that: The top of the support seat (1) is provided with a jack (2), the inside of the jack (2) is inserted with a fixed column (3), one side of the fixed column (3) is fixedly connected with a fixed block (4), one side of the fixed block (4) is provided with a hole (5), the inside of the hole (5) is inserted with a connecting block (6), one side of the connecting block (6) is provided with a buffer assembly (7), the buffer assembly (7) comprises a connecting disc (701), the connecting disc (701) is fixedly connected on one side of the connecting block (6), one side of the connecting disc (701) is fixedly connected with a supporting rod (702), one end of the supporting rod (702) is fixedly connected with a mounting plate (703), one side of the mounting plate (703) is fixedly connected with two hydraulic rods (704), two hydraulic rods (704) are symmetrically distributed with the center point of the mounting plate (703), the outer parts of two hydraulic rods (704) are respectively sleeved with shock-absorbing springs (705), one side of two hydraulic rods (704) is fixedly connected with a bottom plate (706), one side of the bottom plate (706) is fixedly connected with a fixing piece (707).

2. A device for protecting a slope of an open pit mine from rolling stones according to claim 1, characterized in that: Both sides of the fixed column (3) are fixedly connected with a clamping block (8), one side of the clamping block (8) is clamped with a steel wire mesh (9), the clamping block (8) is used for clamping the steel wire mesh (9), both sides of the fixed column (3) are fixedly connected with a hook (10), the inside of the hook (10) is welded with a connecting piece (11), one side of the connecting piece (11) is fixedly connected with a protective net (12).

3. The device according to claim 1, characterized in that: The side surface of the fixed column (3) is fixedly connected with a plurality of rib plates (13), the bottom of the support seat (1) is fixedly connected with a steel plate (14), the bottom of the steel plate (14) is provided with a concrete layer (15), the top of the steel plate (14) is provided with a threaded hole (16), the inside of the threaded hole (16) is threadedly connected with a threaded piece (17).

4. The device according to claim 1, characterized in that: The shape of the bottom plate (706) is wave-shaped, one side of the bottom plate (706) is fixedly connected with a pressure detector (18).

5. The device according to claim 1, characterized in that: One side of the fixed column (3) is fixedly connected with a warning sign (19), the outside of the warning sign (19) is provided with a fluorescent material (20).

6. A device for protecting a slope of an open pit mine from rolling stones according to claim 2, characterized in that: The steel wire mesh (9) and the protective net (12) are both double-layer net protection, and the protective net (12) is located above the steel wire mesh (9), and the mesh hole size thereof presents a decreasing trend relative to the steel wire mesh (9).