A slope protection device for open-pit mines

Abstract

This utility model discloses an open-pit mine slope protection device, belonging to the field of mine slope protection technology. The device includes a protective component installed on the slope's soil and rock layer for protection. The protective component comprises several protective nets and a positioning mechanism connecting four adjacent protective nets. The positioning mechanism includes a positioning disc with an upwardly protruding positioning cylinder at the top center, positioning pins, four U-shaped seats, a connecting rod, a locking seat, a connecting belt, a limiting ring, and anchor rods passing through the locking seats and limiting rings. This open-pit mine slope protection device's positioning mechanism fixes the protective nets to the entire protective component through multiple positioning points, reducing the gap between the protective nets and the slope surface, thereby intercepting smaller stones and improving the protective effect. The adjustable anchor rods significantly enhance the stability of the adjustable columnar shell, further improving the protective effect of the protective nets.

Description

Technical Field

[0001] This utility model belongs to the field of mine slope protection technology, specifically relating to an open-pit mine slope protection device. Background Technology

[0002] After natural weathering, the slopes of open-pit mines are prone to landslides, which can easily lead to large-scale landslides, posing a huge threat to the lives of workers and even threatening residents living below the mine.

[0003] Currently, the slope protection treatment in open-pit mines usually involves a combination of slope protection nets (various flexible nets, mainly steel wire rope nets) and anchor bolts to cover and wrap the slope or rock to be protected, in order to limit the weathering and erosion or damage of the slope rock and soil and prevent rockfall (reinforcement), or to control the movement of falling rocks within a certain range (containment).

[0004] However, anchor bolts are easily loosened when exposed to wind and rain for a long time in the outdoor environment, which greatly reduces the protective effect of the slope protection net and increases safety risks. Moreover, the slope surface of open-pit mines is often uneven, and large gaps are likely to appear between the protection net and the slope surface, making it impossible to intercept small stones or mud clods, resulting in poor protection. Utility Model Content

[0005] This utility model provides a slope protection device for open-pit mines, aiming to solve the technical problems mentioned in the background art, such as the anchor rods being easily loosened due to long-term exposure to wind and rain in the outdoor environment, which greatly reduces the protective effect of the slope protection net and increases safety risks; and the slope surface of open-pit mines is often uneven, and large gaps are easily formed between the protective net and the slope surface, making it impossible to intercept small stones or mud clods, resulting in poor protective effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An open-pit mine slope protection device includes a protective component installed on the slope rock and soil layer for protecting the slope rock and soil layer; the protective component includes several protective nets and a positioning mechanism connecting four adjacent protective nets; the positioning mechanism includes a positioning disc with an upwardly protruding positioning cylinder at the top center, a positioning pin passing through the inner side of the positioning cylinder, four U-shaped seats fixedly connected to the outer wall of the positioning disc and distributed circumferentially, a connecting rod hinged to the inner side of the U-shaped seats, a retaining seat fixedly connected to the end of the connecting rod, a connecting strap fixedly connected to the four corners of the protective net, a limiting ring disposed inside the retaining seat and integrally connected to the end of the connecting strap, and an adjustable anchor rod passing through the retaining seat and the limiting ring.

[0008] During operation, four adjacent protective nets are fixed to the slope soil and rock layer through multiple positioning mechanisms. First, the positioning plate is fixed to the slope soil and rock layer by positioning pins. Then, the connecting strips at the four corners of the protective net are fixed to the inside of the card seat by anchor rods to further fix the positioning plate. The positioning mechanism fixes the entire protective assembly to the protective net through multiple positioning points, thereby reducing the gap between the protective net and the slope surface, thus intercepting small stones or mud clods and effectively improving the protection effect.

[0009] Furthermore, the anchor rod includes a hollow cylindrical shell, a threaded rod rotatably connected to the bottom of the inner side of the cylindrical shell, a movable ring screwed to the outer side of the threaded rod, a strip hole circumferentially arranged along the outer wall of the movable ring, a connecting rod hinged to the outer wall of the movable ring, three support rods hinged to the bottom end of the connecting rod, and an adjusting handle fixedly connected to the top of the threaded rod. The lower end of the support rod is rotatably connected to the inner walls of both sides of the strip hole.

[0010] Furthermore, the inner wall of the positioning cylinder is provided with an internal thread, and the outer wall of the positioning pin is provided with an external thread that matches the internal thread.

[0011] Furthermore, the card holder comprises two auxiliary positioning rings of identical size, both fixedly connected to the end of the connecting rod.

[0012] Furthermore, the outer wall of the positioning cylinder is fixedly connected with several reinforcing ribs along the circumferential direction.

[0013] Furthermore, the protective net is woven from steel wire rope.

[0014] The beneficial effects of this utility model are as follows:

[0015] This open-pit mine slope protection device has a simple structure and is easy to use. It fixes four adjacent protective nets to the slope rock and soil layer through multiple positioning mechanisms. First, the positioning plate is fixed to the slope rock and soil layer by positioning pins. Then, the connecting strips at the four corners of the protective net are fixed to the inside of the card seat by anchor rods to further fix the positioning plate. The positioning mechanism fixes the entire protective component to the protective net through multiple positioning points, reducing the gap between the protective net and the slope surface, thereby intercepting small stones or mud clods and effectively improving the protection effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a slope protection device for an open-pit mine.

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the positioning mechanism in an open-pit mine slope protection device;

[0018] Figure 3 This is a schematic diagram of the structure of an anchor bolt in an open-pit mine slope protection device.

[0019] Figure 4 This is a schematic diagram of the internal structure of an anchor bolt in an open-pit mine slope protection device.

[0020] In the diagram: 1-Protective component; 2-Protective net; 3-Positioning mechanism; 31-Positioning disc; 311-Positioning cylinder; 312-Reinforcing rib; 32-Positioning pin; 33-U-shaped seat; 34-Connecting rod; 35-Card holder; 351-Auxiliary positioning ring; 36-Connecting belt; 37-Limiting ring; 38-Anchor bolt; 381-Columnar shell; 382-Threaded rod; 383-Moving ring; 384-Strip hole; 385-Connecting rod; 386-Support rod; 387-Adjusting handle. Detailed Implementation

[0021] An open-pit mine slope protection device, such as Figures 1 to 4 As shown, the open-pit mine slope protection device includes a protection component 1 installed on the slope rock and soil layer for protecting the slope rock and soil layer; the protection component 1 includes several protective nets 2 and a positioning mechanism 3 connected between four adjacent protective nets 2; the positioning mechanism 3 includes a positioning disc 31 with an upwardly protruding positioning cylinder 311 at the top center, a positioning pin 32 passing through the inner side of the positioning cylinder 311, four U-shaped seats 33 fixedly connected to the outer wall of the positioning disc 31 and distributed circumferentially, a connecting rod 34 hinged to the inner side of the U-shaped seat 33, a card seat 35 fixedly connected to the end of the connecting rod 34, a connecting strap 36 fixedly connected to the four corners of the protective net 2, a limiting ring 37 set inside the card seat 35 and integrally connected to the end of the connecting strap 36, and an adjustable anchor rod 38 passing through the card seat 35 and the limiting ring 37.

[0022] During operation, four adjacent protective nets 2 are fixed to the slope soil and rock layer by multiple positioning mechanisms 3. First, the positioning plate 31 is fixed to the slope soil and rock layer by positioning pins 32. Then, the connecting strips 36 at the four corners of the protective net 2 are fixed to the inside of the card seat 35 by anchor rods 38 to further fix the positioning plate 31. The positioning mechanism 3 fixes the entire protective component 1 to the protective net 2 through multiple positioning points, thereby reducing the gap between the protective net 2 and the slope surface, thus intercepting small stones or mud clods and effectively improving the protection effect.

[0023] In one embodiment, such as Figure 4The adjustable anchor rod 38 includes a hollow cylindrical shell 381, a threaded rod 382 rotatably connected to the bottom of the inner side of the cylindrical shell 381, a movable ring 383 screwed to the outer side of the threaded rod 382, ​​a strip hole 384 circumferentially arranged along the outer wall of the movable ring 383, a connecting rod 385 hinged to the outer wall of the movable ring 383, three support rods 386 hinged to the bottom end of the connecting rod 385, and an adjusting handle 387 fixedly connected to the top of the threaded rod 382. The lower end of the support rod 386 is rotatably connected to the inner walls of both sides of the strip hole 384.

[0024] In this embodiment, refer to Figure 3 and Figure 4 The adjusting handle 387 drives the threaded rod 382 to rotate. The threaded rod 382 then drives the movable ring 383 to move along the length of the threaded rod 382. The movable ring 383 then drives the connecting rod 385 to move. The connecting rod 385 continues to drive the support rod 386 to pass through the strip hole 384 and spread out into the surrounding soil, thereby greatly enhancing the firmness of the adjustable anchor rod 38 and further improving the protective effect of the protective net 2.

[0025] In one embodiment, the inner wall of the positioning cylinder 311 is provided with an internal thread, and the outer wall of the positioning pin 32 is provided with an external thread that matches the internal thread.

[0026] In this embodiment, refer to Figure 2 The positioning cylinder 311 is threadedly connected to the positioning pin 32, which facilitates the initial positioning of the positioning disc 31.

[0027] In one embodiment, the card holder 35 comprises two auxiliary positioning rings 351 that are identical in size and fixedly connected to the end of the connecting rod 34.

[0028] In this embodiment, refer to Figure 1 and Figure 2 The card holder 35 is a sandwich structure composed of two auxiliary positioning rings 351. During installation, the limiting ring 37 can be inserted between the two auxiliary positioning rings 351. The structure is simple and easy to install.

[0029] In one embodiment, the outer wall of the positioning cylinder 311 is fixedly connected with a plurality of reinforcing ribs 312 along the circumferential direction.

[0030] In this embodiment, refer to Figure 1 and Figure 2 The reinforcing rib 312 enhances the structural strength of the positioning cylinder 311.

[0031] In one embodiment, the protective net 2 is woven from steel wire rope.

[0032] In this embodiment, refer to Figure 1The protective net 2 is woven from steel wire rope and has the advantages of high strength, light weight, not easy to break, and reliable operation.

Claims

1. A slope protection device for open-pit mines, characterized in that, It includes a protective component (1) installed on the slope rock and soil layer for protecting the slope rock and soil layer. The protective component (1) includes several protective nets (2) and a positioning mechanism (3) connecting four adjacent protective nets (2). The positioning mechanism (3) includes a positioning disc (31) with a positioning cylinder (311) protruding upward at the center of the top, a positioning pin (32) passing through the inner side of the positioning cylinder (311), four U-shaped seats (33) fixedly connected to the outer wall of the positioning disc (31) and distributed circumferentially, a connecting rod (34) hinged to the inner side of the U-shaped seat (33), a card seat (35) fixedly connected to the end of the connecting rod (34), a connecting strap (36) fixedly connected to the four corners of the protective net (2), a limiting ring (37) set inside the card seat (35) and integrally connected to the end of the connecting strap (36), and an adjustable anchor rod (38) passing through the card seat (35) and the limiting ring (37).

2. The open-pit mine slope protection device according to claim 1, characterized in that, The adjustable anchor rod (38) includes a hollow cylindrical shell (381), a threaded rod (382) rotatably connected to the bottom of the inner side of the cylindrical shell (381), a movable ring (383) screwed to the outer side of the threaded rod (382), a strip hole (384) circumferentially arranged along the outer wall of the movable ring (383), a connecting rod (385) hinged to the outer wall of the movable ring (383), three support rods (386) hinged to the bottom end of the connecting rod (385), and an adjusting handle (387) fixedly connected to the top of the threaded rod (382). The lower end of the support rod (386) is rotatably connected to the inner walls of both sides of the strip hole (384).

3. The open-pit mine slope protection device according to claim 1, characterized in that, The inner wall of the positioning cylinder (311) is provided with an internal thread, and the outer wall of the positioning pin (32) is provided with an external thread that matches the internal thread.

4. The open-pit mine slope protection device according to claim 1, characterized in that, The card holder (35) consists of two auxiliary positioning rings (351) that are exactly the same size and are fixedly connected to the end of the connecting rod (34).

5. The open-pit mine slope protection device according to claim 1, characterized in that, The outer wall of the positioning cylinder (311) is fixedly connected with several reinforcing ribs (312) along the circumferential direction.

6. The open-pit mine slope protection device according to claim 1, characterized in that, The protective net (2) is woven from steel wire rope.

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