A mine roadway U-shaped steel reinforcing structure

Abstract

The application belongs to the technical field of U-shaped steel reinforcement, and discloses a mine roadway U-shaped steel reinforcement structure, which comprises a connecting plate and two buckling plates arranged on the two sides of the connecting plate and buckled and matched with the steel body edges on the two sides of the U-shaped steel, two fixing pieces are detachably arranged on the connecting plate and used for fixing the two buckling plates, and a positioning piece is further arranged in the middle of the bottom surface of the connecting plate and used for connecting the inside of the U-shaped steel. The two ends of the flat connecting plate are bent to the state of being buckled and matched with the steel body edges on the two sides of the U-shaped steel through a tool. Then, the fixing pieces are installed to fix the buckling plates in the buckled state, so that the stability of the buckling plates is enhanced, and the buckling plates are prevented from being pried open due to insufficient constraint force of the buckling plates and deformation of the U-shaped steel under a large force. The inside of the U-shaped steel is connected with the bottom surface of the connecting plate through the positioning piece, the position of the connecting plate is ensured, the reinforcement effect is continuously exerted, and the reliability and stability of the whole reinforcement structure are further improved. The U-shaped structure of the U-shaped steel is prevented from deforming, and the safety hidden danger is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of U-shaped steel reinforcement technology, and in particular to a U-shaped steel reinforcement structure for mine roadways. Background Technology

[0002] Mine roadways, as the core underground passages in mining operations, are primarily used for ore deposit exploration, ore transportation, ventilation and smoke extraction, and personnel and equipment passage. Their structural stability is a crucial prerequisite for ensuring safe and efficient mine operations. In roadway support systems, U-shaped steel arch supports are widely used to withstand surrounding rock pressure due to their strong adaptability and convenient installation. This helps constrain roadway deformation, prevent collapse accidents, and is an important structure for maintaining roadway stability.

[0003] However, ordinary U-shaped steel structures have low strength. After long-term exposure to continuous loads, impact pressures, and changes in geological stress from the surrounding rock, the U-shaped structure of the steel is prone to deformation. This weakens the support capacity, creates significant safety hazards, directly threatens the safety of underground workers and equipment, and seriously affects the normal production order of the mine. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a U-shaped steel reinforcement structure for mine roadways.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a U-shaped steel reinforcement structure for mine roadways, including a connecting plate and two fastening plates disposed on both sides of the connecting plate and respectively fastening the steel body edges on both sides of the U-shaped steel. The connecting plate is detachably provided with two fixing members for fixing the two fastening plates, and the bottom center of the connecting plate is also provided with a positioning member that connects to the inside of the U-shaped steel.

[0006] By adopting the above technical solution, a connecting plate, a snap-fit ​​plate, and fasteners are installed. Initially, the snap-fit ​​plate is straight. When workers need to reinforce the U-shaped steel, the straight connecting plate is placed in the corresponding position. Then, using tools, both ends of the straight connecting plate are bent to snap into place with the edges of the U-shaped steel. Fasteners are then installed to secure the snap-fit ​​plate, enhancing its stability and preventing insufficient restraint from causing deformation of the U-shaped steel under significant force, which could lead to the snap-fit ​​plate opening. Positioning components connect the interior of the U-shaped steel to the bottom surface of the connecting plate, ensuring the connecting plate's position and ensuring its continued reinforcement function, further improving the reliability and stability of the entire reinforcement structure. This prevents deformation of the U-shaped steel structure and eliminates safety hazards.

[0007] Furthermore, the connecting plate is provided with a reinforcing plate, and both ends of the reinforcing plate are respectively connected to a portion of the corresponding fastening plate.

[0008] By adopting the above technical solution and installing reinforcing plates, the connecting plates and snap-fit ​​plates are formed into a stable whole, significantly improving the structural strength. This not only disperses the external force transmitted by the U-shaped steel, preventing damage to local components due to excessive stress, but also supports the snap-fit ​​plates, preventing them from loosening and deforming during long-term use, effectively extending the life of the reinforced structure.

[0009] Furthermore, the fastener includes a first U-shaped plate that engages with the side of the fastening plate. An L-shaped plate is provided on the first U-shaped plate. The horizontal section of the L-shaped plate is connected to the first U-shaped plate, and the bottom of the vertical section is provided with second U-shaped plates on both sides of the reinforcing plate. Mounting plates are provided on both sides of the middle part of the reinforcing plate. Threaded rods are provided on both sides of the mounting plates. The second U-shaped plate is provided with a through hole for the threaded rod to pass through, and a nut is screwed onto the threaded rod.

[0010] By adopting the above technical solution, an L-shaped plate and a threaded rod are set. After the tool bends the connecting plate to engage with the steel edges on both sides of the U-shaped steel, the second U-shaped plate is moved towards the threaded rod. The threaded rod passes through the through hole of the second U-shaped plate, and the first U-shaped plate of the fixing component engages with the side of the fastening plate. Tightening the nut allows the second U-shaped plate to move towards the reinforcing plate and be fixed, which makes the first U-shaped plate and the fastening plate engage more tightly, and the fastening plate fits more tightly with the edge of the U-shaped steel, effectively resisting the spreading force generated by the deformation of the U-shaped steel.

[0011] Furthermore, the outer wall of the first U-shaped plate is provided with a U-shaped reinforcing rib.

[0012] By adopting the above technical solution, the strength and deformation resistance of the first U-shaped plate are enhanced.

[0013] Furthermore, the inner side of the L-shaped plate at the bend is provided with an arc-shaped reinforcing rib, and the top of the horizontal section is provided with a triangular reinforcing rib connected to the U-shaped reinforcing rib plate.

[0014] By adopting the above technical solutions, and setting arc-shaped reinforcing ribs, triangular reinforcing ribs, and arc-shaped reinforcing ribs on the inner side of the L-shaped plate bend, the stress concentration problem at the bend can be solved, the force can be distributed, and the breakage can be prevented.

[0015] Furthermore, the first U-shaped plate has a vertically threaded hole on the plate body located below the fastening plate, and a bolt is spirally installed in the threaded hole. A semi-circular block is provided at the end of the bolt near the fastening plate.

[0016] By adopting the above technical solution, bolts and semicircular blocks are set. After the fasteners are installed, rotating the bolts can drive the semicircular blocks to push upwards and tighten the bottom of the fastening plate, eliminating the gap between the fastening plate and the edge of the U-shaped steel and enhancing the constraint effect.

[0017] Furthermore, the positioning component includes a connecting block disposed inside the U-shaped steel, a connecting post disposed on the connecting block, a contact plate disposed at the end of the connecting post away from the connecting block, four screw holes arranged in a rectangular array vertically on the contact plate, and a through hole penetrating the connecting plate on the second U-shaped plate, with screws passing through the through hole and connecting to the screw hole to fix the connecting plate and the contact plate.

[0018] Furthermore, the second U-shaped plate has trapezoidal reinforcing ribs connected to the vertical section of the L-shaped plate, located near the reinforcing plate.

[0019] By adopting the above technical solution and setting trapezoidal reinforcing ribs, the second U-shaped plate needs to withstand the clamping force of the threaded rod and the external force transmitted by the L-shaped plate. The connection part is prone to stress concentration. The trapezoidal reinforcing ribs can effectively disperse the stress, avoid deformation and breakage in this part, and ensure the structural integrity of the fastener.

[0020] In summary, this utility model has the following beneficial effects: In this application, a connecting plate, a snap-fit ​​plate, and fasteners are provided. Initially, the snap-fit ​​plate is flat. When workers need to reinforce the U-shaped steel, the flat connecting plate is placed in the corresponding position, and then both ends of the flat connecting plate are bent using tools to snap into the edges of the U-shaped steel. Subsequently, the fasteners are installed to fix the snap-fit ​​plate in the snap-fit ​​state, enhancing its stability and preventing insufficient restraint from causing deformation of the U-shaped steel under significant force, which could lead to the snap-fit ​​plate opening. The positioning component connects the interior of the U-shaped steel to the bottom surface of the connecting plate, ensuring the position of the connecting plate and continuously providing reinforcement, further improving the reliability and stability of the entire reinforcement structure. It also prevents deformation of the U-shaped steel structure, eliminating safety hazards. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure for reinforcing U-shaped steel according to an embodiment of this utility model; Figure 2 This is a structural schematic diagram of another angle when reinforcing U-shaped steel according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the positioning component and connecting plate in an embodiment of this utility model; Figure 5 This is a structural schematic diagram of the fastener in an embodiment of this utility model.

[0022] In the diagram: 10. Connecting plate; 11. Fastening plate; 12. Reinforcing plate; 13. Mounting plate; 14. Threaded rod; 15. Nut; 20. Fastener; 21. First U-shaped plate; 22. L-shaped plate; 23. Second U-shaped plate; 24. U-shaped reinforcing rib plate; 25. Arc-shaped reinforcing rib; 26. Triangular reinforcing rib; 27. Bolt; 28. Semicircular block; 29. ​​Trapezoidal reinforcing rib; 30. Positioning component; 31. Connecting block; 32. Connecting column; 33. Contact plate. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] like Figure 1-5 As shown in the illustration, this application discloses a U-shaped steel reinforcement structure for mine roadways, including a connecting plate 10, positioning elements 30, and two fastening plates 11 disposed on both sides of the connecting plate 10 and respectively fastening the edges of the steel body on both sides of the U-shaped steel. Two fixing elements 20 are detachably disposed on the connecting plate 10 to fix the two fastening plates 11. The positioning elements 30 are disposed in the middle of the bottom surface of the connecting plate 10 and are also connected to the interior of the U-shaped steel. Initially, the fastening plates 11 are straight. When workers need to reinforce the U-shaped steel, they place the straight connecting plate 10 in the corresponding position, and then use tools to bend both ends of the straight connecting plate 10 to fasten with the edges of the steel body on both sides of the U-shaped steel. Subsequently, the fixing elements 20 are installed to fix the fastening plates 11 in the fastened state, enhancing the stability of the fastening plates 11 and preventing insufficient restraint force from causing deformation of the U-shaped steel under large forces and opening the fastening plates 11. In the complex environment of mine roadways, U-shaped steel is often subjected to significant external forces. If the fastening plate 11 relies solely on its own fastening force for fixation, it is easily stretched open when the U-shaped steel deforms due to insufficient restraint, leading to reinforcement failure. The fastener 20 ensures that the fastening plate 11 always provides reliable restraint to the U-shaped steel. The positioning element 30 connects the interior of the U-shaped steel to the bottom surface of the connecting plate 10, ensuring the position of the connecting plate 10 and continuously providing reinforcement, further improving the reliability and stability of the entire reinforcement structure. This prevents deformation of the U-shaped steel structure and eliminates safety hazards.

[0025] A reinforcing plate 12 is provided on the connecting plate 10. The length direction of the reinforcing plate 12 is consistent with that of the connecting plate 10, and both ends of the reinforcing plate 12 are connected to portions of the corresponding fastening plate 11. The reinforcing plate 12 forms a stable whole with the connecting plate 10 and the fastening plate 11, greatly improving the structural strength. It can not only disperse the external force transmitted by the U-shaped steel, avoiding damage to local components due to excessive stress, but also support the fastening plate 11, preventing it from loosening and deforming during long-term use, effectively extending the service life of the reinforced structure.

[0026] Specifically, the fastener 20 includes a first U-shaped plate 21 that engages with the side of the fastening plate 11. An L-shaped plate 22 is provided on the first U-shaped plate 21. The horizontal section of the L-shaped plate 22 is connected to the first U-shaped plate 21, and the bottom of the vertical section is provided with second U-shaped plates 23 on both sides of the reinforcing plate 12. Mounting plates 13 are provided on both sides of the middle part of the reinforcing plate 12. Threaded rods 14 are provided on both sides of the mounting plates 13. The second U-shaped plate 23 is provided with a through hole for the threaded rods 14 to pass through, and a nut 15 is screwed onto the threaded rods 14. After the tool bends the connecting plate 10 to engage with the steel edges on both sides of the U-shaped steel, the second U-shaped plate 23 is moved towards the threaded rod 14. The threaded rod 14 passes through the through hole of the second U-shaped plate 23, and the first U-shaped plate 21 of the fixing member 20 engages with the side of the fastening plate 11. Tightening the nut 15 allows the second U-shaped plate 23 to move towards the reinforcing plate 12 and be fixed, making the first U-shaped plate 21 and the fastening plate 11 engage more tightly, and the fastening plate 11 fits more closely with the edge of the U-shaped steel, effectively resisting the spreading force generated by the deformation of the U-shaped steel. The first U-shaped plate 21 has a vertically threaded hole on the plate body located on the lower side of the fastening plate 11, and a bolt 27 is spirally installed in the threaded hole. A semi-circular block 28 is provided at the end of the bolt 27 near the fastening plate 11. After the fixing member 20 is installed, rotating the bolt 27 can drive the semi-circular block 28 to push upward and tighten the bottom of the fastening plate 11, eliminating the gap between the fastening plate 11 and the edge of the U-shaped steel and enhancing the restraint effect.

[0027] During installation, a U-shaped reinforcing rib plate 24 is provided on the outer wall of the first U-shaped plate 21. This enhances the strength and deformation resistance of the first U-shaped plate 21. Since the first U-shaped plate 21 needs to withstand the external force transmitted by the fastening plate 11 and the connection force with other components, the U-shaped reinforcing rib plate prevents its deformation under stress from causing loosening of the fastening with the fastening plate 11, ensuring the overall reliability of the fastener 20. An arc-shaped reinforcing rib 25 is provided on the inner side of the bend of the L-shaped plate 22, and a triangular reinforcing rib 26 connected to the U-shaped reinforcing rib plate 24 is provided at the top of the horizontal section. The arc-shaped reinforcing rib 25 on the inner side of the bend of the L-shaped plate 22 solves the stress concentration problem at the bend, dispersing the force and preventing breakage. The triangular reinforcing rib 26 connects with the U-shaped reinforcing rib plate 24, further strengthening the connection strength between the L-shaped plate 22 and the U-shaped reinforcing rib plate 24, improving the overall stability of the fastener 20, and preventing loosening of the connection between components. The second U-shaped plate 23 has a trapezoidal reinforcing rib 29 connected to the vertical section of the L-shaped plate 22 near the reinforcing plate 12. The second U-shaped plate 23 needs to withstand the clamping force of the threaded rod 14 and the external force transmitted by the L-shaped plate 22. The connection part is prone to stress concentration. The trapezoidal reinforcing rib 29 can effectively disperse the stress, prevent deformation and breakage in this part, and ensure the structural integrity of the fastener 20.

[0028] In its specific configuration, the positioning component 30 includes a connecting block 31 disposed inside the U-shaped steel. The connecting block 31 has a connecting post 32, and a contact plate 33 is located at the end of the connecting post 32 furthest from the connecting block 31. The contact plate 33 has four vertically arranged screw holes in a rectangular array. The second U-shaped plate 23 has a through hole penetrating the connecting plate 10. Screws pass through the through hole and connect to the screw holes to fix the connecting plate 10 and the contact plate 33. The connecting block 31 is welded inside the U-shaped steel and connected to the contact plate 33 via the connecting post 32. The four rectangular array of screw holes on the contact plate 33 corresponds to the through hole penetrating the connecting plate 10 on the second U-shaped plate 23. After the screws pass through, the connecting plate 10 and the contact plate 33 are fixed. This multi-point symmetrical connection method ensures that the connecting plate 10 and the interior of the U-shaped steel are accurately positioned and do not shift, guaranteeing a stable reinforcement effect.

[0029] The operating principle of the U-shaped steel reinforcement structure for mine roadways in this embodiment is as follows: First, the connecting block 31 is welded inside the U-shaped steel, and the contact plate 33 connected above it by the connecting column 32 is kept horizontal. The worker places the initially straight snap-fit ​​plate 11 at the corresponding reinforcement position of the U-shaped steel, aligning the center of the bottom surface of the connecting plate 10 with the contact plate 33 of the positioning member 30. Then, the two ends of the snap-fit ​​plate 11 are bent with a tool until they are snapped into place with the steel body edges on both sides of the U-shaped steel. The second U-shaped plate 23 of the fixing member 20 is moved toward the threaded rods 14 on both sides of the reinforcement plate 12, so that the threaded rods 14 pass through the through holes on the second U-shaped plate 23, while the first U-shaped plate 21 is snapped into place with the side of the snap-fit ​​plate 11. Then, the nuts 15 on the threaded rods 14 are tightened, which moves the second U-shaped plate 23 toward the reinforcement plate 12 and fixes it. The workers then used a wrench to rotate the bolt 27 in the threaded hole on the lower side of the first U-shaped plate 21, so that the semi-circular block 28 at the end of the bolt 27 pushes upward to tighten the bottom of the connecting plate 11. Finally, the screw is passed through the through hole in the second U-shaped plate 23 that passes through the connecting plate 10, and screwed into the screw hole on the contact plate 33 and tightened.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A U-shaped steel reinforcement structure for mine roadways, characterized in that: It includes a connecting plate (10) and two fastening plates (11) disposed on both sides of the connecting plate (10) and respectively fastening the steel body edges on both sides of the U-shaped steel. The connecting plate (10) is detachably provided with two fasteners (20) for fixing the two fastening plates (11). The bottom surface of the connecting plate (10) is also provided with a positioning element (30) that connects to the inside of the U-shaped steel.

2. The U-shaped steel reinforcement structure for mine roadways according to claim 1, characterized in that: The connecting plate (10) is provided with a reinforcing plate (12), and the two ends of the reinforcing plate (12) are respectively connected to a portion of the corresponding fastening plate (11).

3. The U-shaped steel reinforcement structure for mine roadways according to claim 1, characterized in that: The fastener (20) includes a first U-shaped plate (21) that engages with the side of the fastening plate (11). An L-shaped plate (22) is provided on the first U-shaped plate (21). The horizontal section of the L-shaped plate (22) is connected to the first U-shaped plate (21), and the bottom of the vertical section is provided on both sides of the reinforcing plate (12). A second U-shaped plate (23) is provided on both sides of the middle part of the reinforcing plate (12). A mounting plate (13) is provided on both sides of the mounting plate (13). A threaded rod (14) is provided on both sides of the mounting plate (13). A through hole is provided on the second U-shaped plate (23) for the threaded rod (14) to pass through. A nut (15) is spirally provided on the threaded rod (14).

4. The U-shaped steel reinforcement structure for mine roadways according to claim 3, characterized in that: The outer wall of the first U-shaped plate (21) is provided with a U-shaped reinforcing rib plate (24).

5. A U-shaped steel reinforcement structure for mine roadways according to claim 4, characterized in that: The L-shaped plate (22) has an arc-shaped reinforcing rib (25) on the inner side of the bend, and a triangular reinforcing rib (26) connected to the U-shaped reinforcing rib plate (24) is provided at the top of the horizontal section.

6. The U-shaped steel reinforcement structure for mine roadways according to claim 3, characterized in that: The first U-shaped plate (21) has a threaded hole vertically opened on the plate body located below the fastening plate (11). A bolt (27) is spirally arranged in the threaded hole, and a semi-circular block (28) is provided at the end of the bolt (27) near the fastening plate (11).

7. A U-shaped steel reinforcement structure for mine roadways according to claim 3, characterized in that: The positioning component (30) includes a connecting block (31) disposed inside the U-shaped steel. A connecting post (32) is provided on the connecting block (31). A contact plate (33) is provided at the end of the connecting post (32) away from the connecting block (31). Four screw holes arranged in a rectangular array are vertically opened on the contact plate (33). A through hole is opened on the second U-shaped plate (23) through the connecting plate (10). Screws pass through the through hole and connect with the screw hole to fix the connecting plate (10) and the contact plate (33).

8. A U-shaped steel reinforcement structure for mine roadways according to claim 3, characterized in that: The second U-shaped plate (23) is provided with a trapezoidal reinforcing rib (29) that is connected to the vertical section of the L-shaped plate (22) near the reinforcing plate (12).

Images