Coal mine tunnel supporting structure

Abstract

The utility model discloses a coal mine tunnel supporting structure which comprises two supporting loop bars. The lifting rod is connected to the interior of the supporting sleeve rod in a sliding manner; the top plate is arranged at the upper end of the lifting rod; the positioner is arranged on the outer side of the upper end of the supporting sleeve rod; the protective net and the two fixers are arranged on the two sides of the outer end of the top plate respectively. According to the coal mine tunnel supporting structure, the top of the coal mine tunnel is supported through the top plate, the width of the top plate can be adjusted so that the top plate can be matched with the width in the coal mine tunnel, the top plate is supported through the supporting sleeve rod and the lifting rod, and the supporting sleeve rod can slidably ascend and descend in the lifting rod; after the supporting sleeve rod is lifted to a proper position, the position of the supporting sleeve rod can be fixed through the positioner; the protective nets are arranged on the two sides of the outer end of the top plate correspondingly, falling rocks on the top of the coal mine roadway are blocked through the protective nets, and the situation that people in the roadway are injured by the falling rocks is avoided.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically a coal mine roadway support structure. Background Technology

[0002] Coal mining is the extraction of resources from coal-rich geological strata by humans, aiming to obtain coal as an important energy source and raw material. This process involves various technologies and methods, and based on the geographical location and geological conditions of the coal seam, it is mainly divided into two types of mining: underground coal mines and open-pit coal mines. Underground coal mines are used to mine coal seams far from the surface, requiring the excavation of underground tunnels to extract the coal.

[0003] Coal mine roadways, as an important component of the mine structure, are classified and named according to their spatial location, dip angle, service range, and purpose. From the surface to underground, from horizontal to inclined to vertical, various types of roadways form a complex underground transportation network, which has a significant impact on the production safety and efficiency of coal mines.

[0004] In coal mining, support structures need to be built in the roadways to provide support and protect workers inside. However, the height and width of the roadways vary depending on the scale of mining or different stages of the same roadway. Therefore, a coal mine roadway support structure is proposed that can be adjusted according to the width and height of the roadway, making it more adaptable. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a coal mine roadway support structure, with the aim of solving the above-mentioned problems.

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

[0007] A coal mine roadway support structure, comprising:

[0008] Two support sleeves;

[0009] The lifting rod is slidably connected inside the support sleeve rod;

[0010] The top plate is located at the upper end of the lifting rod;

[0011] The positioner is located on the outer side of the upper end of the support sleeve rod;

[0012] The protective netting and two fasteners are respectively installed on both sides of the outer end of the top plate.

[0013] Preferably, a base is fixed to the bottom of the support sleeve rod.

[0014] Preferably, the top plate includes two support plates, a first sliding plate is slidably connected between the two support plates, and the support plates are fixed to the upper end of the lifting rod by a connecting block.

[0015] Preferably, the cross-section of the first slide plate is configured as an "I" shaped structure.

[0016] Preferably, there are two connecting blocks, and a limiting plate is fixed on the opposite side of each of the two connecting blocks. A bracket is fixed to the lower end of the first sliding plate, and the two ends of the bracket are slidably connected to the inside of the two limiting plates.

[0017] Preferably, the outer end of the limiting plate is fixed with a connecting frame, the connecting frame is inclined, and the two ends of the connecting frame are respectively fixed to the connecting block and the support plate.

[0018] Preferably, an air pump is provided at the bottom of the inner end of the support sleeve rod, and the air pump is located below the lifting rod.

[0019] Preferably, the number of the positioners is set to two, and the positioners also include a mounting box fixed to the outer side of the upper end of the support sleeve rod. A rotating rod is rotatably connected to the opposite side of the two mounting boxes. A connecting rod is engaged with both sides of the rotating rod. A second sliding plate is slidably connected to the inside of both sides of the mounting box. A protrusion is fixed to the end of the second sliding plate near the lifting rod. The second sliding plate is threadedly connected to the connecting rod.

[0020] Preferably, the outer ends of the lifting rod are provided with a plurality of slots at equal intervals on both sides, and the slots are adapted to the protrusions.

[0021] Preferably, the fastener includes a mounting plate fixed to the outer end of the support plate, a pressure plate is provided below the mounting plate, one end of the pressure plate is slidably connected to the inside of the support plate, and the mounting plate and the pressure plate are connected by bolts.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This utility model provides a coal mine roadway support structure, which supports the top of the coal mine roadway through a roof plate. The width of the roof plate can be adjusted to adapt to the width of the coal mine roadway. The roof plate is supported by a support sleeve and a lifting rod. The support sleeve can slide and rise within the lifting rod to adapt to the height of the coal mine roadway. After the support sleeve is raised and lowered to a suitable position, the position of the support sleeve can be fixed by a positioning device.

[0024] Protective nets are installed on both sides of the outer end of the roof to block falling rocks from the top of the coal mine roadway and prevent them from injuring people inside the roadway. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0026] Figure 2 This is a front sectional view of the connection between the support sleeve and the lifting rod of this utility model;

[0027] Figure 3 This is a side sectional view of the top plate of this utility model;

[0028] Figure 4 This is a schematic diagram of the front section structure of the top plate of this utility model;

[0029] Figure 5 This is a top-section structural diagram of the positioner of this utility model.

[0030] In the diagram: 1. Support sleeve rod; 11. Base; 2. Lifting rod; 21. Slot; 3. Support plate; 31. First sliding plate; 4. Protective net; 5. Connecting block; 51. Limiting plate; 52. Connecting frame; 6. Fixer; 61. Mounting plate; 62. Pressure plate; 7. Air pump; 8. Bracket; 9. Positioner; 91. Mounting box; 92. Rotating rod; 93. Connecting rod; 94. Second sliding plate; 95. Protrusion. Detailed Implementation

[0031] 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.

[0032] A coal mine roadway support structure includes two support sleeves 1. A lifting rod 2 is slidably connected inside the support sleeve 1. A top plate is provided at the upper end of the lifting rod 2 to support the top of the coal mine roadway. The support sleeves 1 and the lifting rod 2 provide support for the top plate. A base 11 is fixed at the bottom of the support sleeve 1. The base 11 can be fixed to the ground by a support rod or rivet passing through it.

[0033] In this embodiment, as Figure 1 , Figure 3 and Figure 4The top plate includes two support plates 3, and a first sliding plate 31 is slidably connected between the two support plates 3. The width of the top plate as a whole is adjusted by sliding the two support plates 3 on the outside of the first sliding plate 31 to adapt to the width of the coal mine roadway. The longitudinal section of the first sliding plate 31 is set as an "I" shape, which has better structural stability and thus improves the overall support stability of the top plate. The support plates 3 are fixed to the upper end of the lifting rods 2 by connecting blocks 5, so that when the distance between the two lifting rods 2 is adjusted, the support plates 3 can slide on both sides of the first sliding plate 31.

[0034] After the support plates 3 on both sides of the first slide plate 31 are slid to the desired position, the first slide plate 31 and the support plates 3 can be fixed together with bolts to prevent the first slide plate 31 from continuing to slide.

[0035] Furthermore, a bracket 8 is fixed at the lower end of the first slide plate 31, and there are two connecting blocks 5. A limit plate 51 is fixed on the opposite side of the two connecting blocks 5, and the two ends of the bracket 8 are slidably connected to the inside of the two limit plates 51, so that when the support plate 3 slides, the limit plate 51 can slide on the outside of the bracket 8. At the same time, the bracket 8 further supports the first slide plate 31, improving the support effect of the first slide plate 31.

[0036] Furthermore, a connecting frame 52 is fixed to the outer end of the limiting plate 51. The connecting frame 52 is inclined, and both ends of the connecting frame 52 are fixed to the connecting block 5 and the support plate 3 respectively. The connecting frame 52 further supports the support plate 3 and improves the stability of the support plate 3.

[0037] In a further embodiment, such as Figure 1 , Figure 2 and Figure 5 An air pump 7 is installed at the bottom of the inner end of the support sleeve 1, located below the lifting rod 2. The air pump 7 is used to draw in external gas into the support sleeve 1 to push the lifting rod 2, thereby raising and lowering the lifting rod 2 so that the height of the roof can be adapted to the height of the coal mine roadway.

[0038] Furthermore, a locator 9 is provided on the outer side of the upper end of the support sleeve rod 1. Two locators 9 are provided to fix the position of the lifting rod 2 and maintain the height of the lifting rod 2 after lifting. The locator 9 includes a mounting box 91 fixed on the outer side of the upper end of the support sleeve rod 1. A rotating rod 92 is rotatably connected to one side of each of the two mounting boxes 91. Connecting rods 93 are engaged on both sides of the rotating rod 92. Second sliding plates 94 are slidably connected inside the two sides of the mounting box 91. A protrusion 95 is fixed to one end of the second sliding plate 94 near the lifting rod 2. The second sliding plate 94 is threadedly connected to the connecting rod 93. The threads of the two connecting rods 93 are in the same direction, which can drive the two connecting rods 93 to rotate simultaneously when the rotating rod 92 is rotated, thereby causing the two second sliding plates 94 to translate towards or away from the lifting rod 2.

[0039] Several slots 21 are equally spaced on both sides of the outer end of the lifting rod 2. The slots 21 are adapted to the protrusions 95. After the lifting rod 2 is raised to a suitable height, the slots 21 and the protrusions 95 are aligned so that the protrusions 95 and the slots 21 can be engaged, so that the position of the lifting rod 2 after being raised and lowered in the support sleeve 1 can be fixed.

[0040] In another embodiment, such as Figure 1 and Figure 3 Protective nets 4 are installed on both sides of the outer end of the roof. The protective nets 4 are used to block falling rocks from the top of the coal mine roadway and prevent falling rocks from injuring people in the roadway. Two fixing devices 6 are also installed on both sides of the outer end of the roof to fix one edge of the protective net 4. The other edge of the protective net 4 can be fixed by fixing devices 6 on another set of coal mine roadway support structures.

[0041] The fastener 6 includes a mounting plate 61 fixed to the outer end of the support plate 3. A pressure plate 62 is provided below the mounting plate 61. One end of the pressure plate 62 is slidably connected to the inside of the support plate 3. The mounting plate 61 and the pressure plate 62 are connected by bolts. After the edge of the protective net 4 is placed under the mounting plate 61, the pressure plate 62 is slid upward to clamp the protective net 4. Then, the mounting plate 61 and the pressure plate 62 are connected through the protective net 4 to fix the pressure plate 62. At the same time, the bolts at the connection between the mounting plate 61 and the pressure plate 62 pass through the inside of the protective net 4.

[0042] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] 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 coal mine roadway support structure, characterized in that, include: Two support sleeves (1); The lifting rod (2) is slidably connected to the inside of the support sleeve rod (1); The top plate is located at the upper end of the lifting rod (2); Positioner (9) is located on the outer side of the upper end of the support sleeve (1); The protective net (4) and two fasteners (6) are respectively installed on the outer ends of the top plate.

2. The coal mine roadway support structure according to claim 1, characterized in that, The bottom of the support sleeve (1) is fixed with a base (11).

3. The coal mine roadway support structure according to claim 1, characterized in that, The top plate includes two support plates (3), and a first sliding plate (31) is slidably connected between the two support plates (3). The support plates (3) are fixed to the upper end of the lifting rod (2) through a connecting block (5).

4. The coal mine roadway support structure according to claim 3, characterized in that, The cross-section of the first slide plate (31) is set as an "I" shaped structure.

5. A coal mine roadway support structure according to claim 3, characterized in that, There are two connecting blocks (5). Each of the two connecting blocks (5) has a limiting plate (51) fixed on its opposite side. The lower end of the first sliding plate (31) is fixed with a bracket (8). The two ends of the bracket (8) are slidably connected to the inside of the two limiting plates (51).

6. A coal mine roadway support structure according to claim 5, characterized in that, The outer end of the limiting plate (51) is fixed with a connecting frame (52), which is inclined and whose two ends are fixed to the connecting block (5) and the support plate (3) respectively.

7. A coal mine roadway support structure according to claim 1, characterized in that, An air pump (7) is provided at the bottom of the inner end of the support sleeve (1), and the air pump (7) is located below the lifting rod (2).

8. A coal mine roadway support structure according to claim 1, characterized in that, The number of the positioners (9) is set to two. The positioners (9) also include mounting boxes (91) fixed on the outer side of the upper end of the support sleeve rod (1). Rotating rods (92) are rotatably connected to the opposite side of the two mounting boxes (91). Connecting rods (93) are engaged on both sides of the rotating rods (92). Second sliding plates (94) are slidably connected to the inside of the two sides of the mounting boxes (91). A protrusion (95) is fixed to the end of the second sliding plate (94) near the lifting rod (2). The second sliding plate (94) is threadedly connected to the connecting rod (93).

9. A coal mine roadway support structure according to claim 1, characterized in that, The lifting rod (2) has several slots (21) evenly spaced on both sides of its outer end, and the slots (21) are adapted to the protrusions (95).

10. A coal mine roadway support structure according to claim 1, characterized in that, The fixture (6) includes a mounting plate (61) fixed to the outer end of the support plate (3), and a pressure plate (62) is provided below the mounting plate (61). One end of the pressure plate (62) is slidably connected to the inside of the support plate (3), and the mounting plate (61) and the pressure plate (62) are connected by bolts.

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