A coal mine roadway support structure

Abstract

The utility model discloses a kind of coal mining roadway supporting structure, including protective net, the protective net one end and the other end are placed with plate body one, two groups the plate body one between being equipped with plate body two, the plate body two one end and the other end are respectively with corresponding plate body one adhere, plate body two is placed with multiple groups of frame body, multiple groups The frame body one end is all set with groove body.The utility model, by sliding frame body on plate body two, the position of multiple groups of frame body can be adjusted, after adjusting is completed, make rubber block and plate body two resist tight by screw bolt one, frame body is fixed, frame body moves and drives plate body four to move, by adjusting the position of plate body four can different area of protective net is applied support force, so that protective net can adhere to the roadway surrounding rock of non-standard section to a certain extent, to a certain extent, avoid the gap problem caused by shape fixed of traditional integrated supporting plate, ensure that supporting force is evenly distributed, to a certain extent, inhibit surrounding rock deformation.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mining, and in particular to a support structure for coal mine roadways. Background Technology

[0002] Coal mine roadways are located in complex underground environments, and the surrounding rock is prone to deformation and collapse under ground pressure, thus requiring support. The support method must be selected based on factors such as the nature of the surrounding rock, the span, and the depth of the roadway. Common support forms include timber support, masonry arch support, bolt support, cable anchor support, metal support, and combined support. Proper support can effectively control the deformation of the surrounding rock and ensure the safety of mining operations.

[0003] The existing announcement number is CN220505066U, which discloses a safety support structure for coal mine roadways. The structure includes a base, with a fixing screw connected to the top of the base. A support column is installed at the top of the base, and an adjusting rod is movably connected to the top of the support column. An adjusting assembly is provided between the support column and the adjusting rod. A support plate is installed at the top of the adjusting rod, and adjusting plates are movably connected to both ends of the support plate. A fixing assembly for the adjusting plate is provided between the adjusting plate and the support column. This invention, through the use of the adjusting assembly, allows the support structure to adjust its position according to the height of the roadway during use, avoiding the cumbersome process of replacing the support structure if the height cannot be adjusted, which leads to reduced excavation efficiency and thus improves the practicality of the support structure.

[0004] While the aforementioned issues can be addressed by using adjustable components to allow the support structure to be positioned according to the roadway height, avoiding the cumbersome process of replacing the support structure if the height cannot be adjusted, the support plate is a one-piece structure with a fixed shape. Coal mine roadways are not entirely uniform in cross-sectional shape and may exhibit irregular shapes due to differences in geological conditions and mining processes. Fixed-shape one-piece support plates often only fit the roof of roadways with a specific shape. For non-standard shaped roadways, gaps can easily exist between the support plate and the surrounding rock, leading to uneven distribution of support force. Some areas may not receive effective support, and under long-term stress, this could cause deformation of the surrounding rock, affecting the stability of the roadway. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a support structure for coal mine roadways.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A support structure for a coal mine roadway includes a protective net. A plate (Type 1) is attached to one end and the other end of the protective net. A plate (Type 2) is positioned between two sets of plate (Type 1). One end and the other end of plate (Type 2) are respectively attached to the corresponding plate (Type 1). Multiple sets of frames are attached to plate (Type 2). Each set of frames has a groove at one end, and the grooves are slidably connected to the frames. Each set of frames has a plate (Type 3) connected to one end, and each set of plates (Type 3) is threaded with a bolt (Type 1). Each set of frames has a plate (Type 4) connected to one end, and each set of plates (Type 4) is arc-shaped. A block is attached to one end of each set of plate (Type 1).

[0008] Preferably, one end of the second plate is connected to the third plate, and the two sets of the fifth plates are threadedly connected to a plurality of bolts, which are respectively threaded to the corresponding first plate.

[0009] Preferably, each of the multiple sets of bolts has a rubber block connected to one end, and the multiple sets of rubber blocks are in contact with the plate body.

[0010] Preferably, each of the multiple sets of bolts has a knob connected to one end.

[0011] Preferably, both sets of blocks have mounting holes connected to one end and the other end.

[0012] Preferably, one end of each of the two sets of blocks is connected to a reinforcing rib, and the other end of the reinforcing rib is connected to a corresponding plate.

[0013] Preferably, the protective net is woven from multiple strands of steel wire rope.

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

[0015] 1. By coordinating the frame, plate one, and protective net, the positions of multiple sets of frames can be adjusted by sliding the frame on plate two. After adjustment, tighten bolt one to make the rubber block press against plate two, thus fixing the frame. The movement of the frame will drive plate four to move. By adjusting the position of plate four, support force can be applied to different areas of the protective net, so that the protective net can fit the roadway surrounding rock with non-standard cross-sections to a certain extent. This avoids the gap problem caused by the fixed shape of traditional integrated support plates to a certain extent, ensuring that the support force is evenly distributed and suppressing the deformation of the surrounding rock to a certain extent.

[0016] 2. After the protective netting is laid, the protective netting is laid by using the cooperation between bolt 2, plate 5 and plate 2. Then, plate 1 is pressed against the protective netting, plate 2 is placed in the corresponding position between the two sets of plate 1, bolt 2 is screwed into plate 1, and the two sets of plate 1 and plate 2 are assembled into a whole. This modular assembly method, which uses plate 1, plate 2 and plate 5 to achieve the assembly through bolt 2, disassembles the whole into independent components such as plate 1 and plate 2. These components can be transported to the designated position in the roadway by manual labor or small transportation equipment, which reduces the difficulty of transportation to a certain extent. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a support structure for a coal mine roadway proposed in this utility model.

[0018] Figure 2 for Figure 1 Structural diagrams of the central frame, plate three, and plate four;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the middle bolt, knob, and rubber block;

[0020] Figure 4 for Figure 1 Schematic diagram of the central block, reinforcing ribs, and mounting holes;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of plate body one, plate body five and bolt two.

[0022] In the diagram: 1. Protective netting; 2. Plate 1; 3. Plate 2; 4. Frame; 5. Trench; 6. Plate 3; 7. Bolt 1; 8. Plate 4; 9. Plate 5; 10. Bolt 2; 11. Block; 12. Mounting hole; 13. Reinforcing rib; 14. Knob; 15. Rubber block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figures 1 to 5A support structure for a coal mine roadway includes a protective net 1. Plates 2 are attached to one and the other ends of the protective net 1. The protective net 1 is laid in the area requiring protection, and the plates 2 are attached to the protective net 1, pressing the protective net 1 firmly against the surrounding rock of the roadway. A second plate 3 is positioned between the two sets of plates 2, with one and the other ends attached to the corresponding plates 2. The second plate 3 is then pressed firmly against the two sets of plates 2, and bolts 2 10 are screwed into the plates 2. The plates 2 and 3 form a support frame that fixes both sides of the protective net 1. Multiple sets of frames 4 are attached to the second plate 3. Each frame 4 has an opening at one end, allowing it to be pulled out from the second plate 3, facilitating transportation and assembly to some extent. It can also be configured with different curvatures or different... The frame 4 with shape plate 4 has a wide range of applications. Each set of frame 4 has a groove 5 at one end, which is slidably connected to the frame 4 to guide its movement. Each set of frame 4 has a plate 3 6 at one end, which is threaded with bolt 1 7 to fix the frame 4. Each set of frame 4 has a plate 4 8 at one end. When the frame 4 moves, it will drive the plate 4 8 to move. Each set of plate 4 8 is arc-shaped, which can better fit the contour of the roadway top. Each set of plate 1 2 has a block 11 at one end. By adjusting the position of plate 4 8, different areas of the protective net 1 are supported, so that the protective net 1 can fit the roadway surrounding rock with non-standard cross-section to a certain extent, and the support effect is relatively good.

[0025] In this embodiment, plate 3 is connected to plate 5 9 at one end and the other end. Both sets of plate 5 9 are threadedly connected to multiple sets of bolts 2 10. Bolts 2 10 are used to integrate plate 3 and the two sets of plate 1 2 into a single unit. The multiple sets of bolts 2 10 are threadedly connected to their respective plate 1 2. The plate 3 and plate 1 2 are designed for assembly, facilitating transportation to some extent. Each set of bolts 1 7 has a rubber block 15 connected to one end, which fits against plate 2 3, increasing friction with the frame 4 and improving the stability of the frame 4. Each set of bolts 1 7 has a knob 14 connected to one end, making it easier to rotate the bolts 1 7. Each set of blocks 11 has a mounting hole 12 connected to one end, allowing the support structure to be fixed in conjunction with other equipment. Each set of blocks 11 has a reinforcing rib 13 connected to one end, with the other end of the reinforcing rib 13 connected to its corresponding plate 1 2, further enhancing the stability of the support structure. Protective netting 1 is woven from multiple strands of steel wire rope, and has high overall strength, good toughness, and good impact resistance.

[0026] The working principle of this embodiment is as follows: First, basic assembly is performed. The protective netting 1 is laid in the area of ​​the roadway requiring support. Then, two sets of plates 1-2 are placed at both ends of the protective netting 1, and plate 2-3 is placed between the two sets of plates 1-2, so that both ends of plate 2-3 are attached to their corresponding plates 1-2. Next, using plates 5-9 connected to both ends of plate 2-3, multiple sets of bolts 2-10 are screwed into plates 5-9 and threadedly connected to the corresponding plates 1-2, thus assembling the two sets of plates 1-2 and plate 2-3 into a single unit. This assembly design of plates 1-2 and plate 2-3 facilitates the transportation of the support device to a certain extent and improves efficiency. Then, the position of the frame 4 is adjusted to fit the roadway. Since the frame 4 is slidably connected to plate 2-3 via the groove 5, multiple sets of frame 4 can slide on plate 2-3, thereby adjusting the position of the multiple sets of frame 4. The movement of frame 4 will cause the arc-shaped plate 8 to move. By adjusting the position of plate 8, support force can be applied to different areas of the protective net 1, allowing the protective net 1 to conform to the non-standard cross-section of the roadway surrounding rock to a certain extent, resulting in a relatively good support effect. After adjustment, tighten bolt 7 to make the rubber block 15 connected to one end of bolt 7 abut against plate 3, thereby fixing frame 4. In addition, the mounting holes 12 opened at one and the other ends of block 11 can be used to easily install and fix the support structure to other parts of the roadway.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A support structure for a coal mine roadway, comprising a protective net (1), characterized in that, The protective net (1) has a plate (2) attached to one end and the other end. A plate (3) is provided between the two sets of plates (2). One end of the plate (3) is attached to the corresponding plate (2). Multiple sets of frames (4) are attached to the plate (3). Each set of frames (4) has a groove (5) at one end. The grooves (5) are slidably connected to the frames (4). Each set of frames (4) has a plate (6) connected to one end. Each set of plates (6) is threaded with a bolt (7). Each set of frames (4) has a plate (8) connected to one end. Each set of plates (8) is arc-shaped. Each set of plates (2) has a block (11) connected to one end.

2. The support structure for a coal mine roadway according to claim 1, characterized in that, One end of the second plate (3) is connected to the fifth plate (9), and the two sets of the fifth plates (9) are threadedly connected to a plurality of bolts (10), which are respectively threadedly connected to the corresponding first plate (2).

3. The support structure for a coal mine roadway according to claim 1, characterized in that, Each of the multiple sets of bolts (7) has a rubber block (15) connected to one end, and the multiple sets of rubber blocks (15) are in contact with the plate (3).

4. The support structure for a coal mine roadway according to claim 1, characterized in that, Each of the multiple sets of bolts (7) has a knob (14) connected to one end.

5. The support structure for a coal mine roadway according to claim 1, characterized in that, Both sets of blocks (11) have mounting holes (12) at one end and the other end.

6. The support structure for a coal mine roadway according to claim 1, characterized in that, Both sets of blocks (11) are connected to a reinforcing rib (13) at one end, and the other end of the reinforcing rib (13) is connected to the corresponding plate (2).

7. The support structure for a coal mine roadway according to claim 1, characterized in that, The protective net (1) is woven from multiple strands of steel wire rope.

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