Underground coal mine safety supporting structure

Abstract

The utility model relates to the technical field of coal mines, and discloses a coal mine underground safety supporting structure which comprises a base, a cover plate, a protection plate, an adjusting assembly and a reinforcing assembly, the cover plate is installed on the top of the base, two symmetrically-distributed connecting plates are welded between the cover plate and the base, the protection plate is installed on the upper portion of the cover plate, and the adjusting assembly is installed on the upper portion of the cover plate. The adjusting assembly is arranged between the base and the cover plate, a reinforcing plate is welded to the outer side of the bottom of the base, and the reinforcing assembly is arranged between the reinforcing plate and the protection plate. And the adjusting assembly comprises a motor and a moving plate, the motor is installed in an opening in the top of the base, a rotating rod is fixedly installed at the output end of the motor, threads are arranged outside the rotating rod, and the rotating rod is in threaded connection with the moving plate. According to the underground coal mine safety supporting structure, the motor drives the rotating rod to rotate, the movable plate is driven to move up and down along the guide column through threaded connection, then the position of the protection plate is adjusted through the connecting column, and accurate adjustment of the supporting height is achieved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine technology, specifically to a safety support structure for underground coal mines. Background Technology

[0002] Coal mine underground safety support structures are key equipment used to ensure the safety of the underground working environment in coal mines. They are mainly used to support and protect mine roadways, preventing collapse accidents caused by geological changes or mining activities. In coal mining, fixed safety support structures are commonly used, and their height and support strength are usually not adjustable after installation.

[0003] While fixed underground safety support structures in coal mines are simple in structure and easy to install, they have significant drawbacks. Due to the complex and variable geological conditions in coal mines, the height and width of roadways may differ depending on the progress of mining and geological changes. Fixed support structures cannot be flexibly adjusted according to the actual conditions of the roadways, resulting in limited support effectiveness, and in some cases, they may even lose their support function due to their inability to adapt to changes in the roadways.

[0004] To address the limitations of fixed support structures, adjustable underground safety support structures for coal mines have emerged on the market. These structures typically use mechanical or hydraulic devices to adjust their height and support strength to adapt to different roadway conditions. However, after adjustment, these adjustable support structures often lack effective fixing and reinforcement measures. During coal mining, roadways may be affected by various external forces, such as ground pressure and water damage, causing the support structure to loosen or deform, thus affecting its support effectiveness. Therefore, this paper proposes an underground safety support structure for coal mines to address the aforementioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a safety support structure for underground coal mines, which has the advantages of flexible adjustment and effective reinforcement, thus solving the problem of the lack of adjustability and reinforcement in existing support structures.

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

[0007] A safety support structure for underground coal mines includes a base, a cover plate, a protective plate, an adjustment component, and a reinforcement component. The cover plate is installed on the top of the base, and two symmetrically distributed connecting plates are welded between the two. The protective plate is installed on the upper part of the cover plate. The adjustment component is provided between the base and the cover plate. A reinforcement plate is welded to the outer side of the bottom of the base, and the reinforcement component is provided between the reinforcement plate and the protective plate.

[0008] The adjustment assembly includes a motor and a movable plate. The motor is installed in the opening at the top of the base, and a rotating rod is fixedly installed at its output end. The rotating rod is threaded on the outside and threadedly connected to the movable plate. A connecting column is welded between the movable plate and the protective plate.

[0009] The reinforcement assembly includes a reinforcement rod, a reinforcement base, and a fixing ring. The top end of the reinforcement rod and the bottom end of the reinforcement base are welded to the bottom end of the protective plate and the top end of the reinforcement plate, respectively. The top end of the reinforcement base is open and is inserted into the bottom end of the reinforcement rod. The fixing ring is installed on the outside of the insertion point between the reinforcement rod and the reinforcement base.

[0010] As a preferred technical solution of this utility model, a bearing is fixedly installed on the outer side of the top end of the rotating rod, and is rotatably connected to the bottom of the cover plate through the bearing. Two symmetrically distributed guide columns are also welded between the base and the cover plate, and the two guide columns are inserted into the moving plate.

[0011] As a preferred technical solution of this utility model, the connecting plate has a horizontal sliding groove through hole in the middle and is inserted into the moving plate. The sliding groove through hole has multiple vertically arranged adjustment through holes on the front and rear sides. The moving plate has two symmetrically distributed fixed through holes, and a screw and nut are bolted between one fixed through hole and the two corresponding adjustment through holes on the front and rear sides.

[0012] As a preferred embodiment of this utility model, the reinforcing base has an adjustment groove inside, the bottom of the reinforcing rod is welded with a slider and is inserted into the adjustment groove, and the reinforcing rod is provided with a protruding ridge.

[0013] As a preferred embodiment of this utility model, the top of the protruding ridge extends beyond the reinforcing base, and a limiting block is welded to the outside of the reinforcing rod and at the top of the protruding ridge. The fixing ring is annular and is snapped onto the outside of the reinforcing rod where the protruding ridge is located.

[0014] As a preferred embodiment of this utility model, an annular groove is provided in the middle of the outer side of the fixing ring, and an annular block is slidably connected in the annular groove. An annular connecting piece is welded to the outer side of the annular block.

[0015] As a preferred technical solution of this utility model, the bottom end of the annular connecting piece extends beyond the bottom end of the fixing ring, and a threaded groove is provided on the inner wall of the extended part. The top of the outer side of the reinforcing base is provided with a threaded section, which is threadedly connected to the threaded groove on the inner wall of the annular connecting piece.

[0016] Compared with the prior art, this utility model provides a safety support structure for underground coal mines, which has the following beneficial effects:

[0017] This underground safety support structure for coal mines uses a motor-driven rotating rod to rotate, which in turn moves a movable plate up and down along a guide column via a threaded connection. The position of the protective plate is then adjusted via a connecting column, enabling precise adjustment of the support height. Simultaneously, the sliding through-holes on the connecting plate and the adjusting through-holes, as well as the fixing through-holes on the movable plate and the adjusting through-holes, are secured with bolts, ensuring stability after adjustment. Furthermore, the protruding ridges and limiting blocks on the reinforcing rods not only prevent them from falling off but also facilitate convenient installation and fastening of the reinforcing components through a threaded connection between the annular connecting piece and the threaded section on the reinforcing base. This effectively improves the stability and safety of the support structure under complex geological conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure at point A of this utility model;

[0020] Figure 3 This is a view of the appearance of this utility model.

[0021] In the diagram: 1. Base; 2. Cover plate; 3. Motor; 4. Rotating rod; 5. Moving plate; 6. Guide column; 7. Connecting plate; 8. Adjustment through hole; 9. Connecting column; 10. Protective plate; 11. Reinforcing plate; 12. Reinforcing rod; 13. Reinforcing seat; 14. Adjustment groove; 15. Sliding block; 16. Protruding ridge; 17. Limiting block; 18. Fixing ring; 19. Annular connecting piece; 20. Ring block; 21. Threaded section. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-3 A coal mine underground safety support structure includes a base 1, a cover plate 2, a protective plate 10, an adjustment component, and a reinforcement component. The cover plate 2 is installed on the top of the base 1, and two symmetrically distributed connecting plates 7 are welded between the two. The protective plate 10 is installed on the upper part of the cover plate 2. An adjustment component is provided between the base 1 and the cover plate 2. A reinforcement plate 11 is welded to the outer side of the bottom of the base 1, and a reinforcement component is provided between the reinforcement plate 11 and the protective plate 10.

[0026] Example 1: The adjustment component includes a motor 3 and a movable plate 5. The motor 3 is installed in the top opening of the base 1, and a rotating rod 4 is fixedly installed at its output end. The rotating rod 4 is threaded on the outside and threadedly connected to the movable plate 5. A connecting column 9 is welded between the movable plate 5 and the protective plate 10.

[0027] In this embodiment, a bearing is fixedly installed on the outer side of the top end of the rotating rod 4, and is rotatably connected to the bottom of the cover plate 2 through the bearing. Two symmetrically distributed guide columns 6 are also welded between the base 1 and the cover plate 2, and the two guide columns 6 are inserted into the moving plate 5.

[0028] It should be noted that the bearings ensure the stability and smoothness of the rotating rod 4 during rotation, reduce the loss caused by friction, and enable the driving force of the motor 3 to be transmitted to the moving plate 5 more effectively. The design of the guide column 6 provides precise guidance for the up and down movement of the moving plate 5, preventing the moving plate 5 from deviating or tilting during movement, thereby ensuring the height adjustment accuracy of the support structure.

[0029] In this embodiment, a horizontal sliding groove through hole is provided in the middle of the connecting plate 7, and it is inserted into the moving plate 5. Multiple vertically arranged adjustment through holes 8 are provided on the front and rear sides of the sliding groove through hole. Two symmetrically distributed fixed through holes are provided on the moving plate 5, and a screw and nut are bolted between one fixed through hole and the two corresponding adjustment through holes 8 on the front and rear sides.

[0030] It should be noted that the connecting plate 7 has a horizontal sliding groove through hole in the middle, which is inserted into the moving plate 5. Multiple vertically arranged adjustment through holes 8 are opened on the front and rear sides of the sliding groove through hole. This design allows the moving plate 5 to be fixed to different adjustment through holes 8 by bolts while moving up and down, thereby achieving stable support of the support structure at different heights.

[0031] Example 2: The reinforcement component includes a reinforcement rod 12, a reinforcement base 13, and a fixing ring 18. The top end of the reinforcement rod 12 and the bottom end of the reinforcement base 13 are welded to the bottom end of the protective plate 10 and the top end of the reinforcement plate 11, respectively. The top end of the reinforcement base 13 is open and is inserted into the bottom end of the reinforcement rod 12. The fixing ring 18 is installed on the outside of the insertion point of the reinforcement rod 12 and the reinforcement base 13.

[0032] In this embodiment, the reinforcing base 13 has an adjustment groove 14 inside, the bottom of the reinforcing rod 12 is welded with a slider 15 and is inserted into the adjustment groove 14, and the reinforcing rod 12 is provided with a protruding ridge 16.

[0033] In this embodiment, the top of the protruding ridge 16 extends beyond the reinforcing base 13, is outside the reinforcing rod 12, and is located at the top of the protruding ridge 16. A limiting block 17 is welded thereon, and the fixing ring 18 is annular and is snapped onto the outside of the reinforcing rod 12 where the protruding ridge 16 is located.

[0034] In this embodiment, an annular groove is provided in the middle of the outer side of the fixing ring 18, and an annular block 20 is slidably connected in the annular groove. An annular connecting piece 19 is welded to the outer side of the annular block 20.

[0035] In this embodiment, the bottom end of the annular connecting piece 19 extends beyond the bottom end of the fixing ring 18, and a threaded groove is provided on the inner wall of the extended portion. A threaded section 21 is provided on the top outer side of the reinforcing base 13, and is threadedly connected to the threaded groove on the inner wall of the annular connecting piece 19.

[0036] It should be noted that the design of the protruding ridge 16 and the limiting block 17 on the reinforcing rod 12 not only prevents the reinforcing rod 12 from falling off, but also achieves convenient installation and fastening of the reinforcing component through the threaded connection between the annular connecting piece 19 and the threaded section 21 on the reinforcing base 13. The design of the protruding ridge 16 and the limiting block 17 provides additional support and limiting function for the reinforcing rod 12, preventing the reinforcing rod 12 from falling off or loosening when subjected to external force. The threaded connection between the annular connecting piece 19 and the threaded section 21 makes the installation and fastening process of the reinforcing component simpler and faster.

[0037] This underground safety support structure for coal mines uses a motor 3 to drive a rotating rod 4 to rotate, which in turn drives a movable plate 5 to move up and down along a guide column 6 via a threaded connection. The position of the protective plate 10 is then adjusted via a connecting column 9, achieving precise adjustment of the support height. Simultaneously, the sliding through-hole on the connecting plate 7 engages with the adjusting through-hole 8, and the fixing through-hole on the movable plate 5 is fixed to the adjusting through-hole 8 with bolts, ensuring stability after adjustment. Furthermore, the protruding rib 16 and limiting block 17 on the reinforcing rod 12 not only prevent the reinforcing rod 12 from falling off, but also facilitate convenient installation and fastening of the reinforcing components through a threaded connection between the annular connecting piece 19 and the threaded section 21 on the reinforcing seat 13. This effectively improves the stability and safety of the support structure under complex geological conditions.

[0038] 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 safety support structure for underground coal mines, comprising a base (1), a cover plate (2), a protective plate (10), an adjustment component, and a reinforcement component, wherein the cover plate (2) is installed on the top of the base (1), and two symmetrically distributed connecting plates (7) are welded between the two; the protective plate (10) is installed on the upper part of the cover plate (2); the adjustment component is provided between the base (1) and the cover plate (2); a reinforcement plate (11) is welded to the outer side of the bottom of the base (1), and the reinforcement component is provided between the reinforcement plate (11) and the protective plate (10); Its features are: The adjustment assembly includes a motor (3) and a moving plate (5). The motor (3) is installed in the top opening of the base (1), and a rotating rod (4) is fixedly installed at its output end. The rotating rod (4) is threaded on the outside and threadedly connected to the moving plate (5). A connecting column (9) is welded between the moving plate (5) and the protective plate (10). The reinforcement assembly includes a reinforcement rod (12), a reinforcement base (13), and a fixing ring (18). The top end of the reinforcement rod (12) and the bottom end of the reinforcement base (13) are welded to the bottom end of the protective plate (10) and the top end of the reinforcement plate (11), respectively. The top end of the reinforcement base (13) is open and is inserted into the bottom end of the reinforcement rod (12). The fixing ring (18) is installed on the outside of the insertion point of the reinforcement rod (12) and the reinforcement base (13).

2. A coal mine underground safety support structure according to claim 1, characterised in that: A bearing is fixedly installed on the outer side of the top of the rotating rod (4), and is rotatably connected to the bottom of the cover plate (2) through the bearing. Two symmetrically distributed guide columns (6) are also welded between the base (1) and the cover plate (2), and the two guide columns (6) are inserted into the moving plate (5).

3. A coal mine underground safety support structure according to claim 1, characterised in that: The connecting plate (7) has a horizontal sliding groove through hole in the middle and is inserted into the moving plate (5). Multiple vertically arranged adjustment through holes (8) are opened on the front and rear sides of the sliding groove through hole. The moving plate (5) has two symmetrically distributed fixed through holes, and a screw and nut are bolted between one fixed through hole and the two corresponding adjustment through holes (8) on the front and rear sides.

4. A coal mine underground safety support structure according to claim 1, characterised in that: The reinforcing base (13) has an adjustment groove (14) inside. The bottom of the reinforcing rod (12) is welded with a slider (15) and is inserted into the adjustment groove (14). The reinforcing rod (12) is provided with a protruding ridge (16).

5. A coal mine underground safety support structure according to claim 4, characterised in that: The top of the protrusion (16) extends beyond the reinforcing base (13), and a limiting block (17) is welded to the outside of the reinforcing rod (12) and at the top of the protrusion (16). The fixing ring (18) is annular and is snapped onto the outside of the reinforcing rod (12) where the protrusion (16) is located.

6. A coal mine underground safety support structure according to claim 5, characterised in that: The fixing ring (18) has an annular groove in the middle of its outer side, and an annular block (20) is slidably connected in the annular groove. An annular connecting piece (19) is welded to the outer side of the annular block (20).

7. A coal mine underground safety support structure according to claim 6, characterised in that: The bottom end of the annular connecting piece (19) extends beyond the bottom end of the fixing ring (18), and a threaded groove is provided on the inner wall of the extended part. A threaded section (21) is provided on the top of the outer side of the reinforcing seat (13), and is threadedly connected to the threaded groove on the inner wall of the annular connecting piece (19).

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