Slope coordinated anchoring and supporting device for open-pit mining area

Abstract

The utility model discloses an open -pit mine mining area side slope cooperative anchoring support device, including the support net, both sides of support net all are fixedly connected with the anchoring plate, the upper and lower sides of two anchoring plate all are seted up with the thread hole, the inside thread joint of thread hole has hollow insertion cylinder, the front side of hollow insertion cylinder inner wall is seted up with the internal thread silk, the front side thread joint of hollow insertion cylinder inner wall has the anchoring bolt. The utility model discloses the anchoring bolt in the hollow insertion cylinder is cooperated with the anchoring support, when the anchoring bolt is rotated, the rear end inclined plane will push the anchoring support and rotates around the hinge point, makes the anchoring support unfold, the anchoring piece in the recess of anchoring support outside is forwardly inclined to set up, can further strengthen the friction and the grip of rock mass, effectively prevent the device loosening and pulling out, has improved the anchoring effect to the side slope, has provided reliable overall restraint for the side slope, has guaranteed the stability of the side slope of mining area.

Description

Technical Field

[0001] This utility model relates to the field of mining technology, specifically to a collaborative anchoring support device for slopes in open-pit mines. Background Technology

[0002] In open-pit mining operations, the stability of the mining area slope is crucial, as it directly relates to the safety of mine production and the stability of the surrounding environment. However, existing open-pit mine slope support technologies and equipment have many shortcomings, making it difficult to effectively guarantee the long-term stability of the slope.

[0003] Traditional slope protection devices often employ a single support structure, such as simple anchor bolt support. This type of support relies solely on the anchor bolts being inserted into the rock mass and using friction to provide anchoring force. However, under complex geological conditions and significant external forces, the anchoring force is limited, leading to problems such as anchor bolt loosening and pull-out. This fails to provide effective overall constraint on the slope, resulting in poor slope stability. Furthermore, under complex geological conditions, such as slopes with fractured rock and well-developed joints and fissures, rockfalls are common, and anchor bolt support cannot effectively protect against these falls, posing safety hazards to mining operations.

[0004] Therefore, it is necessary to provide a slope co-anchoring support device for open-pit mines to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a slope co-anchoring support device for open-pit mines, which has the advantages of effectively anchoring slopes, ensuring stability and reliability, and protecting against falling debris.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a slope co-anchoring support device for open-pit mines, comprising a support net, with anchor plates fixedly connected to both sides of the support net, threaded holes on the upper and lower sides of the two anchor plates, and a hollow insertion cylinder threadedly connected to the inside of the threaded holes, with an internal thread on the front side of the inner wall of the hollow insertion cylinder, and an anchor bolt threadedly connected to the front side of the inner wall of the hollow insertion cylinder, and several evenly distributed and penetrating square grooves on the rear side of the surface of the hollow insertion cylinder, with an anchor bracket hinged to the front side of the inner wall of the square groove for use with the anchor bolt, the bottom of the anchor bracket being arc-shaped, the rear end of the anchor bolt having an inclined surface, and a groove on the outer side of the anchor bracket, with several forward-inclined anchor plates fixedly connected inside the groove.

[0007] As a preferred embodiment of this utility model, the top and bottom of the support net are fixedly connected with steel wire ropes, and the two ends of the steel wire ropes are respectively fixedly connected to the surfaces of two anchor plates.

[0008] As a preferred embodiment of this invention, a friction plate is fixedly connected to the back of the anchor plate, and the surface of the friction plate is provided with a plurality of evenly distributed friction protrusions.

[0009] As a preferred embodiment of this utility model, a hexagonal ring is fixedly connected to the front surface of the hollow insertion cylinder, a hexagonal block is fixedly connected to the front end of the anchor bolt, and wedge-shaped gaskets are provided on the rear side of both the hexagonal ring and the hexagonal block.

[0010] As a preferred embodiment of this utility model, an elastic washer is fixedly connected to the rear side of the inner wall of the hollow insertion cylinder, and an anti-loosening washer that works in conjunction with the elastic washer is rotatably connected to the rear end of the anchor bolt.

[0011] As a preferred embodiment of this utility model, the surface of the support net is provided with an anti-corrosion coating, and the surfaces of the anchor plate, anchor bolt and wire rope, as well as the inner and outer surfaces of the hollow insertion cylinder, are all provided with an anti-rust coating.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model features anchor plates on both sides of the support mesh, which are connected to a hollow insertion cylinder via threaded holes, facilitating installation and disassembly and allowing for flexible adjustment based on different mine slope conditions. The anchor bolts inside the hollow insertion cylinder cooperate with the anchor bracket. When the anchor bolts are screwed in, the inclined surface at their rear end pushes the anchor bracket to rotate around the hinge point, causing the anchor bracket to unfold. Simultaneously, the anchoring plates in the grooves on the outer side of the anchor bracket are tilted forward, further enhancing friction and grip with the rock mass, effectively preventing the device from loosening or being pulled out, improving the anchoring effect on the slope, providing reliable overall constraint for the slope, and ensuring the stability of the slope in the mining area.

[0013] 2. This utility model, by incorporating steel wire ropes with high strength and toughness, can tightly connect the support net and anchor plate into a whole, enhancing the structural stability of the entire support device. When facing complex geological conditions and large external forces, the steel wire ropes can disperse stress, preventing excessive local stress on the support net and thus preventing damage. This allows the support device to work together more effectively to resist slope deformation and displacement, further improving the support capacity for slopes in open-pit mines and effectively ensuring the long-term stability of the slope. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the left sectional view of the present invention; Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle.

[0015] In the diagram: 1. Support net; 2. Anchor plate; 3. Hollow insert cylinder; 4. Anchor bolt; 5. Anchor bracket; 6. Anchor plate; 7. Steel wire rope; 8. Friction plate; 9. Hexagonal ring; 10. Hexagonal block; 11. Wedge gasket; 12. Elastic gasket; 13. Anti-loosening gasket. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, this utility model provides a slope co-anchoring support device for open-pit mines, including a support net 1. Anchor plates 2 are fixedly connected to both sides of the support net 1. Threaded holes are opened on the upper and lower sides of the two anchor plates 2. Hollow insert cylinders 3 are threaded inside the threaded holes. An internal thread is opened on the front side of the inner wall of the hollow insert cylinder 3. An anchor bolt 4 is threaded on the front side of the inner wall of the hollow insert cylinder 3. Several evenly distributed and through-hole square grooves are opened on the rear side of the surface of the hollow insert cylinder 3. An anchor bracket 5 for use with the anchor bolt 4 is hinged to the front side of the inner wall of the square groove. The bottom of the anchor bracket 5 is arc-shaped. The rear end of the anchor bolt 4 is provided with an inclined surface. A groove is opened on the outer side of the anchor bracket 5. Several forward-inclined anchor pieces 6 are fixedly connected inside the groove.

[0018] refer to Figure 1 The top and bottom of the support net 1 are fixedly connected with steel wire ropes 7, and the two ends of the steel wire ropes 7 are fixedly connected to the surfaces of the two anchor plates 2 respectively.

[0019] As a technical optimization of this utility model, by setting the steel wire rope 7, which has high strength and toughness, it can tightly connect the support net 1 and the anchor plate 2 into a whole, thereby enhancing the structural stability of the entire support device. When facing complex geological conditions and large external forces, the steel wire rope 7 can disperse stress, preventing the support net 1 from being damaged due to excessive local stress. This allows the support device to work together better to resist the deformation and displacement of the slope, further improving the support capacity for the slope of the open-pit mine and effectively ensuring the long-term stability of the slope.

[0020] refer to Figure 2 Anchor plate 2 is fixedly connected to the back of friction plate 8, and friction plate 8 has a number of evenly distributed friction bumps on its surface.

[0021] As a technical optimization of this utility model, by setting a friction plate 8 fixedly connected to the back of the anchor plate 2 and friction protrusions evenly distributed on its surface, the friction between the device and the slope rock mass can be significantly improved. The friction plate 8 and friction protrusions increase the contact area and friction coefficient between the anchor plate 2 and the rock mass, so that the anchor plate 2 can be more firmly fixed on the slope, reducing the possibility of slippage or displacement of the device during use. This helps to enhance the anchoring effect of the entire support device on the slope and improve the stability of the slope. Especially under complex geological conditions, such as slopes with broken rocks and developed joints and fissures, it can better play the support role and provide more reliable safety guarantee for mine production operations.

[0022] refer to Figure 4 A hexagonal ring 9 is fixedly connected to the front end of the hollow insertion cylinder 3, and a hexagonal block 10 is fixedly connected to the front end of the anchor bolt 4. Wedge-shaped gaskets 11 are provided on the rear side of both the hexagonal ring 9 and the hexagonal block 10.

[0023] As a technical optimization of this utility model, by setting a hexagonal ring 9 at the front end of the hollow insertion cylinder 3 and a hexagonal block 10 at the front end of the anchor bolt 4, it is convenient to use tools for installation and disassembly, thus improving construction efficiency. The wedge-shaped gasket 11 set on the rear side of the hexagonal ring 9 and the hexagonal block 10 can play a role in preventing loosening and damping vibration. During the mining process, various vibrations and external impacts will occur. The wedge-shaped gasket 11 can effectively prevent the hollow insertion cylinder 3 and the anchor bolt 4 from loosening due to vibration, ensuring the tightness and stability of the device connection. This allows the support device to maintain a good working condition for a long time, continuously providing reliable support for the slope of the open-pit mine, and reducing the safety hazards caused by device loosening.

[0024] refer to Figure 4 An elastic washer 12 is fixedly connected to the rear side of the inner wall of the hollow insertion cylinder 3, and an anti-loosening washer 13 that works in conjunction with the elastic washer 12 is rotatably connected to the rear end of the anchor bolt 4.

[0025] As a technical optimization of this utility model, the elastic washer 12 on the rear side of the inner wall of the hollow insertion cylinder 3 cooperates with the anti-loosening washer 13 rotatably connected to the rear end of the anchor bolt 4, achieving excellent anti-loosening effect. The elastic washer 12 provides a certain elastic preload, ensuring that the anchor bolt 4 maintains a certain tightening force during use, preventing it from loosening due to vibration or external force. The anti-loosening washer 13 further enhances the anti-loosening performance, ensuring a firm and reliable connection between the anchor bolt 4 and the hollow insertion cylinder 3 through its synergistic effect with the elastic washer 12.

[0026] refer to Figure 1The surface of the support net 1 is coated with an anti-corrosion coating, and the surfaces of the anchor plate 2, anchor bolt 4 and wire rope 7, as well as the inner and outer surfaces of the hollow insertion cylinder 3, are coated with an anti-rust coating.

[0027] As a technical optimization of this utility model, the anti-corrosion coating on the surface of the support net 1, as well as the anti-rust coating on the surfaces of the anchor plate 2, anchor bolts 4, wire rope 7, and the inner and outer surfaces of the hollow insertion cylinder 3, plays an important protective role. In the harsh environment of open-pit mines, the device is easily corroded by moisture, acids, alkalis, and other substances. These coatings can effectively isolate the device from contact with external corrosive media, slow down the corrosion and rusting rate of the device, and extend its service life. This reduces maintenance costs and replacement frequency during mining operations, and ensures that the support device maintains good performance during long-term use, continuously providing stable and reliable support for the slopes of open-pit mines, thus ensuring the safety of mine production and the stability of the surrounding environment.

[0028] The working principle and usage process of this utility model are as follows: First, based on the actual conditions and support requirements of the slope in the open-pit mine, pre-set holes are precisely drilled on the slope. Next, the rear end of the hollow insert cylinder 3 is inserted into the pre-set hole. By tightening the hollow insert cylinder 3, the anchor plate 2 is initially fixed using its threaded connection with the threaded hole on the anchor plate 2, thus initially positioning the support net 1 on the slope. Then, the anchor bolt 4 is inserted into the hollow insert cylinder 3 and tightened. As the anchor bolt 4 is tightened, its rear inclined surface interacts with the arc-shaped surface inside the anchor bracket 5, generating a thrust. Because the anchor bracket 5 is hinged to the front of the inner wall of the hollow insert cylinder 3, the thrust... Under the action of the anchor bracket 5, the rear end expands outward with the hollow insertion cylinder 3 as the center; when the anchor bolt 4 is fully tightened, the anchor bracket 5 expands to the maximum extent. At this time, the anchor plate 6 in the outer groove of the anchor bracket 5 will be inserted into the inner wall of the preset hole. With the friction between the anchor plate 6 and the hole wall and the squeezing action of the anchor bracket 5 on the surrounding rock, the anchor plate 2 and the support net 1 are firmly fixed to the slope. The support net 1 and the anchor plates 2 on both sides work together to form an integral support structure, providing stable anchoring force to the slope, effectively enhancing the stability of the slope, resisting the impact of complex geological conditions and external forces on the slope, and ensuring the safe operation of open-pit mining.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A collaborative anchoring support device for slopes in open-pit mines, comprising a support net (1), characterized in that: Anchor plates (2) are fixedly connected to both sides of the support net (1). Threaded holes are opened on the upper and lower sides of the two anchor plates (2). Hollow insert cylinders (3) are threaded inside the threaded holes. Internal threads are opened on the front side of the inner wall of the hollow insert cylinder (3). An anchor bolts (4) are threaded on the front side of the inner wall of the hollow insert cylinder (3). Several evenly distributed square grooves that penetrate inside and outside are opened on the rear side of the surface of the hollow insert cylinder (3). An anchor bracket (5) that works with the anchor bolts (4) is hinged to the front side of the inner wall of the square groove. The bottom of the anchor bracket (5) is arc-shaped. The rear end of the anchor bolt (4) is inclined. A groove is opened on the outer side of the anchor bracket (5). Several anchor plates (6) that are inclined forward are fixedly connected inside the groove.

2. The slope co-anchoring support device for open-pit mines according to claim 1, characterized in that: The top and bottom of the support net (1) are fixedly connected with steel wire ropes (7), and the two ends of the steel wire ropes (7) are fixedly connected to the surfaces of the two anchor plates (2) respectively.

3. The slope co-anchoring support device for open-pit mine mining areas according to claim 2, characterized in that: The back of the anchor plate (2) is fixedly connected to a friction plate (8), and the surface of the friction plate (8) is provided with a number of evenly distributed friction bumps.

4. The slope co-anchoring support device for open-pit mines according to claim 3, characterized in that: A hexagonal ring (9) is fixedly connected to the front end of the hollow insert cylinder (3), and a hexagonal block (10) is fixedly connected to the front end of the anchor bolt (4). Wedge-shaped gaskets (11) are provided on the rear side of both the hexagonal ring (9) and the hexagonal block (10).

5. The slope co-anchoring support device for open-pit mine mining areas according to claim 4, characterized in that: An elastic pad (12) is fixedly connected to the rear side of the inner wall of the hollow insertion cylinder (3), and an anti-loosening pad (13) that works in conjunction with the elastic pad (12) is rotatably connected to the rear end of the anchor bolt (4).

6. The slope co-anchoring support device for open-pit mine mining areas according to claim 5, characterized in that: The surface of the support net (1) is provided with an anti-corrosion coating, and the surfaces of the anchor plate (2), anchor bolt (4) and wire rope (7) as well as the inner and outer surfaces of the hollow insertion cylinder (3) are all provided with an anti-rust coating.

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