Goaf roadway reinforcing device

The improved goaf roadway reinforcement device enables adjustment and splicing according to the roadway width and length, solving the problem that the existing device cannot adapt to different roadway sizes, and improving the stability and safety of the roadway.

CN224469134UActive Publication Date: 2026-07-07SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ROAD & BRIDGE CONSTRUCTION GROUP CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing goaf roadway reinforcement devices cannot be spliced ​​according to the roadway length, resulting in some areas lacking effective support. Furthermore, the side plates cannot be adjusted according to the roadway width, causing gaps between the device and the roadway wall, making it impossible to form a continuous and complete support system and reducing roadway stability.

Method used

The width of the side plate is adjusted by the cooperation of the top plate, the first connecting plate, the second connecting plate, the guide column, the moving plate, the cylinder, the lifting block, the rotating plate, the connecting column and the side plate; the length splicing of the device is achieved by the cooperation of the knob, the rotating shaft, the fixed plate, the arc-shaped limiting plate, the insertion hole, the slide, the limiting rod, the spring, the movable plate and the insertion column.

Benefits of technology

This design achieves a tight fit between the side plate and the tunnel wall, uniform distribution of support force, effective resistance to surrounding rock pressure, ensures support continuity, and reduces the risk of tunnel deformation and collapse.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses goaf roadway reinforcing device relates to reinforcing device technical field, including base, the upside front end fixedly connected with two first connecting plates of base, the upside rear end fixedly connected with two second connecting plates of base, the upside fixedly connected with a roof of first connecting plate and second connecting plate, the opposite surface fixedly connected with two guide posts of two first connecting plates, the outer wall slidingly connected with two moving plates of guide post. The utility model discloses through the mutual cooperation of roof, first connecting plate, second connecting plate, guide post, moving plate, pneumatic cylinder, lifting block, rotating plate, connecting column and side plate, can adjust side plate according to the width of roadway, and the clearance between device and roadway wall can be eliminated to adjusting side plate, makes the uniform distribution of support force, avoids stress concentration or partial load risk, and side plate and roadway wall are more closely attached, can effectively resist the surrounding rock pressure, reduces the risk of roadway deformation, cracking or collapse.
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Description

Technical Field

[0001] This utility model relates to the field of reinforcement device technology, specifically to a reinforcement device for roadways in goaf areas. Background Technology

[0002] Goaf roadway reinforcement devices are mainly used to reinforce goaf roadways in underground mines such as coal mines to prevent dangers during mining operations. By providing additional support and fixation, they reduce the risk of deformation, subsidence, or collapse of the roadway roof and sides.

[0003] The existing technology has the following problems:

[0004] Existing equipment cannot be spliced ​​according to the length of the roadway during use. Roadways in goaf areas are usually quite long. If the reinforcement equipment cannot be spliced, it may be difficult to cover the entire roadway, resulting in some areas lacking effective support and increasing safety hazards. The reinforcement equipment cannot form a continuous and complete support system, which may reduce the overall stability of the roadway. In addition, existing equipment cannot adjust the side plates according to the width of the roadway. The width of roadways in goaf areas may vary due to geological conditions, mining stages, or design requirements. If the side plates cannot be adjusted, it may result in a large gap between the equipment and the roadway wall, dispersing the support force and failing to effectively resist the pressure of the surrounding rock. Utility Model Content

[0005] This utility model provides a roadway reinforcement device for goaf areas to solve the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A goaf roadway reinforcement device includes a base, with two first connecting plates fixedly connected to the upper front end of the base, and two second connecting plates fixedly connected to the upper rear end of the base. A top plate is fixedly connected to the upper side of the first connecting plates and the second connecting plates. Two guide columns are fixedly connected to the opposite surfaces of the two first connecting plates, and two movable plates are slidably connected to the outer walls of the guide columns.

[0008] A further improvement of this utility model is that: a cylinder is fixedly connected to the lower side of the top plate, a lifting block is fixedly connected to the output end of the cylinder, two rotating plates are rotatably connected to the left and right sides of the lifting block, and the other end of the rotating plate is rotatably connected to the moving plate.

[0009] A further improvement of this utility model is that: two connecting columns are fixedly connected to the opposite sides of the two movable plates, and a side plate is fixedly connected to the other end of the connecting columns.

[0010] A further improvement of this utility model is that: two positioning posts are fixedly connected to the rear side of the second connecting plate, two positioning grooves are opened on the front side of the first connecting plate, the outer wall of the positioning post is movably connected to the positioning groove, a second arc-shaped limiting groove is opened on the opposite surface of the two second connecting plates, and a first arc-shaped limiting groove is opened on the opposite surface of the two first connecting plates.

[0011] A further improvement of this utility model is that: the two second connecting plates are rotatably connected to a rotating shaft on their opposite surfaces, a knob is fixedly connected to the other end of the rotating shaft, a plurality of fixing plates are fixedly connected to the outer wall of the rotating shaft, an arc-shaped limiting plate is fixedly connected to the other end of the plurality of fixing plates, a second arc-shaped limiting groove is movably connected to the outer wall of the arc-shaped limiting plate, and the outer wall of the arc-shaped limiting plate is movably connected to the first arc-shaped limiting groove.

[0012] A further improvement of this utility model is that the length of the arc-shaped limiting plate is longer than that of the first arc-shaped limiting groove, and the length of the arc-shaped limiting plate is shorter than that of the second arc-shaped limiting groove.

[0013] A further improvement of this utility model is that: the second connecting plate has several insertion holes on the side near the knob, the outer wall of the rotating shaft has a sliding groove, a limit rod is fixedly connected to the left side of the inner surface of the sliding groove, a spring is sleeved on the outer wall of the limit rod, a movable plate is slidably connected to the outer wall of the limit rod, an insertion post is fixedly connected to the side of the movable plate near the insertion hole, the outer wall of the insertion post is movably connected to the insertion hole, one end of the spring is fixedly connected to the sliding groove, and the other end of the spring is fixedly connected to the movable plate.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a roadway reinforcement device for goaf areas. Through the cooperation of the roof plate, the first connecting plate, the second connecting plate, the guide column, the moving plate, the cylinder, the lifting block, the rotating plate, the connecting column and the side plate, the side plate can be adjusted according to the width of the roadway. Adjusting the side plate can eliminate the gap between the device and the roadway wall, so that the supporting force is evenly distributed, avoiding stress concentration or the risk of uneven load. The side plate fits more tightly with the roadway wall, which can effectively resist the pressure of the surrounding rock and reduce the risk of roadway deformation, cracking or collapse.

[0016] 2. This utility model provides a reinforcement device for roadways in goaf areas. Through the cooperation of knobs, shafts, fixing plates, arc-shaped limiting plates, insertion holes, sliding grooves, limiting rods, springs, movable plates, and insertion columns, it can be spliced ​​according to the length of the roadway. Goaf roadways are usually quite long, and the splicable device can continuously cover the entire roadway, avoiding the lack of support in some areas due to insufficient equipment length, ensuring the continuity of support, and reducing the risk of local instability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the important structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the second connecting plate structure of this utility model;

[0021] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Base; 2. Top plate; 3. First connecting plate; 5. Second connecting plate; 6. Guide post; 7. Moving plate; 8. Cylinder; 9. Lifting block; 10. Rotating plate; 11. Connecting post; 12. Side plate; 13. Positioning post; 14. Positioning groove; 15. First arc-shaped limiting groove; 16. Second arc-shaped limiting groove; 17. Knob; 18. Rotating shaft; 19. Fixed plate; 20. Arc-shaped limiting plate; 21. Insertion hole; 22. Slide groove; 23. Limiting rod; 24. Spring; 25. Movable plate; 26. Insertion post. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a goaf roadway reinforcement device, including a base 1. Two first connecting plates 3 are fixedly connected to the upper front end of the base 1, and two second connecting plates 5 are fixedly connected to the upper rear end of the base 1. A top plate 2 is fixedly connected to the upper side of the first connecting plates 3 and the second connecting plates 5. Two guide columns 6 are fixedly connected to the opposite surfaces of the two first connecting plates 3. Two movable plates 7 are slidably connected to the outer walls of the guide columns 6. The base 1 serves as the foundation of the entire reinforcement device, playing a supporting and stabilizing role. The first connecting plates 3 and the second connecting plates 5 are respectively fixed at the front and rear ends of the base 1, providing installation support for the top plate 2, so that the top plate 2 can be stably positioned above the device to withstand the pressure transmitted from the roadway top plate 2. The guide columns 6 are fixed between the two first connecting plates 3, and the movable plates 7 can slide on the outer walls of the guide columns 6, which provides a moving guide basis for the subsequent adjustment of the side plates 12.

[0025] like Figure 2As shown, this utility model provides a technical solution: Preferably, a cylinder 8 is fixedly connected to the lower side of the top plate 2, and a lifting block 9 is fixedly connected to the output end of the cylinder 8. Two rotating plates 10 are rotatably connected to both sides of the lifting block 9. The other end of the rotating plate 10 is rotatably connected to the moving plate 7. Two connecting columns 11 are fixedly connected to the opposite sides of the two moving plates 7. The other end of the connecting column 11 is fixedly connected to a side plate 12. When it is necessary to adjust the side plate 12 according to the width of the tunnel, the cylinder 8 on the lower side of the top plate 2 is activated, and the output end of the cylinder 8 pushes the lifting block 9 downward. The rotating plates 10 connected to the left and right sides of the lifting block 9 will rotate as the lifting block 9 moves. The other end of the rotating plate 10 is rotatably connected to the moving plate 7. The rotation of the rotating plate 10 causes the moving plate 7 to slide outward or inward on the guide column 6. The moving plate 7 is connected to the side plate 12 through the connecting column 11. Therefore, the sliding of the moving plate 7 will cause the side plate 12 to move, thereby realizing the adjustment of the position of the side plate 12 according to the width of the tunnel, so that the side plate 12 can fit tightly against the tunnel wall, eliminate the gap between the device and the tunnel wall, evenly distribute the supporting force, and effectively resist the pressure of the surrounding rock.

[0026] like Figure 3-5As shown, this utility model provides a technical solution: Preferably, two positioning posts 13 are fixedly connected to the rear side of the second connecting plate 5, and two positioning grooves 14 are opened on the front side of the first connecting plate 3. The outer wall of the positioning post 13 is movably connected to the positioning groove 14. A second arc-shaped limiting groove 16 is opened on the opposite surface of the two second connecting plates 5, and a first arc-shaped limiting groove 15 is opened on the opposite surface of the two first connecting plates 3. A rotating shaft 18 is rotatably connected to the opposite surface of the two second connecting plates 5. A knob 17 is fixedly connected to the other end of the rotating shaft 18. Multiple fixing plates 19 are fixedly connected to the outer wall of the rotating shaft 18, and a knob 17 is fixedly connected to the other end of the multiple fixing plates 19. An arc-shaped limiting plate 20 is movably connected to a second arc-shaped limiting groove 16 on its outer wall. The outer wall of the arc-shaped limiting plate 20 is movably connected to a first arc-shaped limiting groove 15. The length of the arc-shaped limiting plate 20 is longer than that of the first arc-shaped limiting groove 15 and shorter than that of the second arc-shaped limiting groove 16. Several insertion holes 21 are provided on the side of the second connecting plate 5 near the knob 17. A sliding groove 22 is provided on the outer wall of the rotating shaft 18. A limiting rod 23 is fixedly connected to the left side of the inner surface of the sliding groove 22. A spring 24 is sleeved on the outer wall of the limiting rod 23. A movable plate 25 is slidably connected to the outer wall of the limiting rod 23. The movable plate 25 is fixed on the side near the insertion holes 21. The device is connected to a pin 26, the outer wall of which is movably connected to the insertion hole 21. One end of a spring 24 is fixedly connected to a slide 22, and the other end is fixedly connected to a movable plate 25. When the device needs to be spliced ​​to accommodate a longer tunnel, the positioning pin 13 on the rear side of the second connecting plate 5 of one device is inserted into the positioning groove 14 on the front side of the first connecting plate 3 of another device to complete the initial positioning. Then, the movable plate 25 is pulled to disengage the pin 26 from the insertion hole 21. Then, the knob 17 is turned, which drives the rotating shaft 18 to rotate. The fixing plate 19 fixed to the outer wall of the rotating shaft 18 will rotate with the rotation of the rotating shaft 18, thereby driving the arc-shaped limiting plate 20 to rotate. As the outer wall of the arc-shaped limiting plate 20 is movably connected to the second arc-shaped limiting groove 16 and the first arc-shaped limiting groove 15, the rotating arc-shaped limiting plate 20 will move in the two arc-shaped limiting grooves to further limit and fix the splicing point. The insertion post 26 on the side of the movable plate 25 near the insertion hole 21 will be inserted into or pulled out of the insertion hole 21 as the movable plate 25 moves. When the arc-shaped limiting plate 20 rotates to the appropriate position, the spring 24 pushes the movable plate 25 to insert the insertion post 26 into the insertion hole 21, fixing the rotating shaft 18, thereby ensuring the stability of the spliced ​​device, realizing splicing according to the length of the tunnel, continuously covering the entire tunnel, and avoiding the lack of support in some areas.

[0027] The working principle of the goaf roadway reinforcement device will be explained in detail below.

[0028] like Figure 1-5As shown, when the side plate 12 needs to be adjusted according to the tunnel width, the cylinder 8 on the lower side of the top plate 2 is activated. The output end of the cylinder 8 pushes the lifting block 9 downward. The rotating plates 10 connected to the left and right sides of the lifting block 9 will rotate with the movement of the lifting block 9. The other end of the rotating plate 10 is rotatably connected to the moving plate 7. The rotation of the rotating plate 10 causes the moving plate 7 to slide outward or inward on the guide post 6. The moving plate 7 is connected to the side plate 12 through the connecting post 11. Therefore, the sliding of the moving plate 7 will cause the side plate 12 to move, thereby realizing the adjustment of the position of the side plate 12 according to the tunnel width, so that the side plate 12 can fit tightly against the tunnel wall, eliminate the gap between the device and the tunnel wall, evenly distribute the supporting force, and effectively resist the pressure of the surrounding rock. When it is necessary to splice the device to adapt to a longer tunnel, the positioning post 13 on the rear side of the second connecting plate 5 of one device is inserted into the positioning groove 14 on the front side of the first connecting plate 3 of another device to complete the initial positioning. Next, pull the movable plate 25 to disengage the insert 26 from the insertion hole 21. Then, rotate the knob 17, which drives the rotating shaft 18 to rotate. The fixing plate 19 fixed to the outer wall of the rotating shaft 18 will rotate with the rotation of the rotating shaft 18, thereby driving the arc-shaped limiting plate 20 to rotate. Since the outer wall of the arc-shaped limiting plate 20 is movably connected to the second arc-shaped limiting groove 16 and the first arc-shaped limiting groove 15, the rotating arc-shaped limiting plate 20 will move in the two arc-shaped limiting grooves to further limit and fix the splicing point. The insert 26 on the side of the movable plate 25 near the insertion hole 21 will be inserted into or pulled out of the insertion hole 21 as the movable plate 25 moves. When the arc-shaped limiting plate 20 rotates to the appropriate position, the spring 24 pushes the movable plate 25 to insert the insert 26 into the insertion hole 21, fixing the rotating shaft 18, thereby ensuring the stability of the spliced ​​device, realizing splicing according to the length of the tunnel, continuously covering the entire tunnel, and avoiding the lack of support in some areas.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A roadway reinforcement device for goaf areas, characterized in that: Includes a base (1), with two first connecting plates (3) fixedly connected to the upper front end of the base (1), and two second connecting plates (5) fixedly connected to the upper rear end of the base (1). A top plate (2) is fixedly connected to the upper side of the first connecting plate (3) and the second connecting plate (5). Two guide posts (6) are fixedly connected to the opposite surfaces of the two first connecting plates (3), and two movable plates (7) are slidably connected to the outer wall of the guide posts (6).

2. The goaf roadway reinforcement device according to claim 1, characterized in that: A cylinder (8) is fixedly connected to the lower side of the top plate (2). A lifting block (9) is fixedly connected to the output end of the cylinder (8). Two rotating plates (10) are rotatably connected to the left and right sides of the lifting block (9). The other end of the rotating plate (10) is rotatably connected to the moving plate (7).

3. The goaf roadway reinforcement device according to claim 2, characterized in that: Two connecting columns (11) are fixedly connected to the opposite sides of the two movable plates (7), and a side plate (12) is fixedly connected to the other end of the connecting column (11).

4. The goaf roadway reinforcement device according to claim 1, characterized in that: The rear side of the second connecting plate (5) is fixedly connected to two positioning posts (13), and the front side of the first connecting plate (3) is provided with two positioning grooves (14). The outer wall of the positioning post (13) is movably connected to the positioning groove (14). The opposite surfaces of the two second connecting plates (5) are provided with second arc-shaped limiting grooves (16), and the opposite surfaces of the two first connecting plates (3) are provided with first arc-shaped limiting grooves (15).

5. The goaf roadway reinforcement device according to claim 4, characterized in that: The two second connecting plates (5) are rotatably connected to a rotating shaft (18) on their opposite sides. A knob (17) is fixedly connected to the other end of the rotating shaft (18). Multiple fixing plates (19) are fixedly connected to the outer wall of the rotating shaft (18). An arc-shaped limiting plate (20) is fixedly connected to the other end of the multiple fixing plates (19). The second arc-shaped limiting groove (16) on the outer wall of the arc-shaped limiting plate (20) is movably connected. The outer wall of the arc-shaped limiting plate (20) is movably connected to the first arc-shaped limiting groove (15).

6. The goaf roadway reinforcement device according to claim 5, characterized in that: The arc-shaped limiting plate (20) is longer than the first arc-shaped limiting groove (15), and the arc-shaped limiting plate (20) is shorter than the second arc-shaped limiting groove (16).

7. The goaf roadway reinforcement device according to claim 6, characterized in that: The second connecting plate (5) has several insertion holes (21) on the side near the knob (17). The outer wall of the rotating shaft (18) has a sliding groove (22). A limit rod (23) is fixedly connected to the left side of the inner surface of the sliding groove (22). A spring (24) is sleeved on the outer wall of the limit rod (23). A movable plate (25) is slidably connected to the outer wall of the limit rod (23). A plug (26) is fixedly connected to the side of the movable plate (25) near the insertion hole (21). The outer wall of the plug (26) is movably connected to the insertion hole (21). One end of the spring (24) is fixedly connected to the sliding groove (22), and the other end of the spring (24) is fixedly connected to the movable plate (25).