Reinforcing protection structure for coal mining roadway

Abstract

The invention discloses a coal mining roadway reinforcing and protecting structure which comprises a connecting support, a bearing frame is arranged on the connecting support and comprises a plurality of bearing frames, a gap is formed between every two adjacent bearing frames, and the number of the gaps is at least four; the at least four supporting and buffering assemblies penetrate through the corresponding gaps and are detachably arranged on the bearing frame, each supporting and buffering assembly comprises a mounting plate, bearing plates are rotatably arranged on the two sides of the mounting plate, and the bearing plates can rotate by 90 degrees to a transverse posture or a vertical downward posture; the at least four shock absorbers are rotatably arranged on the mounting plate; the first protection plate and the second protection plate are hinged to each other, and the tops of the corresponding shock absorbers are rotatably connected with the corresponding first protection plate or the second protection plate. The supporting and buffering assemblies at the corresponding positions can be replaced according to site conditions, and the supporting and buffering assemblies are very convenient to mount and dismount, so that actual use is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel protection, in particular to a reinforced protection structure for a coal mining tunnel. Background Art

[0002] In deep coal mines, metal mines, and tunnel projects, high ground stress environments are prone to rock bursts. Rock bursts are often instantaneous, sudden, and extremely destructive, accompanied by a massive release of energy. This can cause the surrounding rock of the tunnel to suddenly fracture and collapse, resulting in high-speed falling rock masses (rockfalls). These rockfalls impose instantaneous impact loads on the corresponding protective structures (such as anchor rods, steel arches, and concrete spraying). Many existing tunnel protection devices (such as U-shaped steel supports and I-beam arches) are typically installed as a single piece using welding or bolting. Although this structure provides good stability under static loads, if a section of the steel frame is bent by falling rocks or an anchor rod is broken, maintenance becomes more complex, requiring the entire section of the protective structure to be dismantled, resulting in high replacement costs. Furthermore, the narrow space within the tunnel makes cutting and welding difficult, thus impacting production progress. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned deficiencies and provide a coal mining tunnel reinforcement protection structure that is easy to maintain and can effectively ensure production progress.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a coal mining tunnel reinforcement protection structure, comprising: A connecting bracket, wherein a load-bearing frame is provided on the connecting bracket, and the load-bearing frame includes a plurality of bearing frames, and a gap is provided between each two adjacent bearing frames, and the number of the gaps is at least four; At least four support and buffer assemblies, each of which passes through a corresponding gap and is detachably arranged on the load-bearing frame, the support and buffer assemblies comprising: A mounting plate, with support plates rotatably provided on both sides thereof, the support plates being capable of rotating ninety degrees to a horizontal position or a vertical downward position; at least four shock absorbers rotatably disposed on the mounting plate; A first protective plate and a second protective plate hinged to each other, wherein the combined length of the first protective plate and the second protective plate is greater than the combined length of the mounting plate and the support plate, and the first protective plate and the second protective plate can be rotated at their hinged joint to an unfolded position or a folded position, and the top of the corresponding shock absorber is rotatably connected to the corresponding first protective plate or second protective plate; An adjustable support component is capable of driving the first protective plate and the second protective plate to be adjusted to an unfolded posture or a folded posture; The supporting and buffering components on the load-bearing frame are arranged in an overlapping manner in an arch shape.

[0005] Furthermore, both sides of the mounting plate are provided with transverse guide grooves, the support buffer assembly further comprises an inserting plate slidably inserted into the corresponding guide groove, the interior of the supporting plate is provided with a slot arranged along its length direction, and when the supporting plate is rotated to a transverse posture, the corresponding inserting plate can be inserted into the corresponding slot; A strip groove communicating with the guide groove is provided on the bottom wall of the mounting plate, and a pull rod penetrating the strip groove and extending to the outside of the mounting plate is provided on the plug plate.

[0006] Furthermore, a first magnet is provided on one side of the inserting plate close to the corresponding supporting plate, and a second magnet capable of magnetically attracting the first magnet is provided in the corresponding slot of the supporting plate.

[0007] Furthermore, the adjustment support component includes an outer sleeve arranged at the center of the mounting plate, the outer sleeve has a rectangular shape, and an inner sleeve is inserted into the inner sleeve so as to slide up and down. A spring is provided on the inner bottom wall of the outer sleeve, and the top of the spring contacts the bottom of the inner sleeve. A threaded rod is screwed to the interior of the inner sleeve, and the top and bottom of the threaded rod extend outside the outer sleeve. A V-shaped mounting bracket is hingedly provided on the top of the threaded rod, and two sides of the mounting bracket away from the threaded rod are hingedly connected to the first protective plate and the second protective plate respectively.

[0008] Furthermore, the support and buffer assembly also includes a folding plate hingedly arranged on a side of the corresponding first protective plate and the second protective plate that are away from each other.

[0009] Furthermore, a soft protective layer is provided on the top of the first protective plate and the second protective plate.

[0010] Furthermore, the carrier frame is provided with a plurality of through holes, and the supporting plate is also provided with a plurality of corresponding through holes.

[0011] The beneficial effects of the present invention are embodied in: In the present invention, in the initial state, the support plate is rotated to a vertical downward posture, and the first protective plate and the second protective plate are rotated to a folded posture. When the corresponding support buffer assembly needs to be installed, the staff can pass it from bottom to top through the gap at the corresponding position in the tunnel and push it to the top of the carrier frame. Then, the corresponding two support plates are rotated to a horizontal posture. At this time, the two corresponding support plates are located at the top of the corresponding carrier frame. The staff then lowers the support buffer assembly downward. At this time, the two support plates will contact the top of the corresponding carrier frame and are finally fixed by corresponding fixing parts (such as bolts). After fixing, the first protective plate and the second protective plate can be adjusted to the expanded posture by adjusting the supporting parts for protection. When disassembling, it is only necessary to reverse the above steps to remove the support buffer assembly at the corresponding position. This device can replace the support buffer assembly at the corresponding position according to the on-site conditions, and its installation and disassembly are very convenient, which is convenient for actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional view of the present invention; Figure 2 It is a side view of the structure of the present invention; Figure 3 A partial cross-sectional view of the support and buffer assembly of the present invention; Figure 4 For the present invention Figure 1 A partial enlarged view of shown A; Figure 5 For the present invention Figure 3 A partial enlarged view of B shown; Figure 6 A partial side view of the support and buffer assembly of the present invention.

[0013] In the picture: 1. Connecting bracket; 2. Load-bearing frame; 21. Support frame body; 22. Load-bearing frame; 3. Support buffer assembly; 31. Mounting plate; 32. Support plate; 33. Shock absorber; 34. First protective plate; 35. Second protective plate; 36. Insert plate; 37. Pull rod; 38. Adjusting support component; 381. Outer sleeve; 382. Inner sleeve; 383. Spring; 384. Threaded rod; 385. Mounting frame; 39. Folding plate. DETAILED DESCRIPTION

[0014] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0015] Please refer to Figure 1-6 The present application discloses a kind of coal mining roadway reinforced protection structure, including connecting support 1 and at least four support buffer components 3, connecting support 1 is provided with load-bearing frame 2, load-bearing frame 2 includes support frame body 21 and the multiple load-bearing frames 22 welded on it, wherein, every adjacent two load-bearing frames 22 between there is gap for support buffer component 3 from bottom to top through, the number of the gap is at least four, in use, each support buffer component 3 can pass through corresponding gap respectively and can be detachably installed on load-bearing frame 2.

[0016] In an embodiment, support buffer component 3 includes mounting plate 31, its both sides rotatably install support plate 32, support plate 32 can be rotated ninety degrees to transverse attitude or vertical downward attitude, when it is rotated to transverse attitude, the top of support plate 32 is blocked by mounting plate 31 and cannot continue to rotate, at least four shock absorbers 33 can be rotatably installed on mounting plate 31, and the top of mounting plate 31 is further provided with first protection plate 34 and second protection plate 35 that are hinged to each other, wherein, the combined length of first protection plate 34 and second protection plate 35 is greater than the combined length of mounting plate 31 and support plate 32, and it can be rotated to unfolded attitude or folded attitude at its hinged to each other, when it is rotated to folded attitude, it is V-shaped, the top of corresponding shock absorber 33 is rotatably connected with corresponding first protection plate 34 or second protection plate 35, adjusting support component 38 is further provided at the center of mounting plate 31, the adjusting support component 38 can drive first protection plate 34 and second protection plate 35 to adjust to unfolded attitude or folded attitude.

[0017] When the support frame 32 is in a state of being stretched, the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 32 is in a state of being stretched, and the support frame 32 of the support frame 3

[0018] In actual situations, it is necessary to select a corresponding number of these devices according to the length of the tunnel, and set them in sequence to form a complete protection system, thereby ensuring better safety inside the tunnel.

[0019] In addition, the supporting buffer components 3 on the load-bearing frame 2 are arranged in an overlapping arch shape. When the fallen rocks on the inner wall of the tunnel fall downward, they will contact the first protective plate 34 or the second protective plate 35 at the corresponding position, and the first protective plate 34 or the second protective plate 35 will guide them to one side of the device, thereby effectively preventing the fallen rocks from accumulating on the device and increasing the supporting pressure of the device.

[0020] In one embodiment, transverse guide grooves are provided on both sides of the mounting plate 31, and the support buffer assembly 3 also includes an insert plate 36 that is slidably inserted into the corresponding guide groove. A slot is provided inside the support plate 32 along its length, and a strip groove connected to the guide groove is provided at the bottom wall of the mounting plate 31. A pull rod 37 is installed on the insert plate 36, which passes through the strip groove and extends to the outside of the mounting plate 31.

[0021] In specific implementation, when the support plate 32 rotates to a horizontal posture, the corresponding plug-in plate 36 can be inserted into the corresponding slot, thereby increasing the bearing capacity between the mounting plate 31 and the support plate 32. When the support plate 32 rotates to a vertical downward posture, the corresponding plug-in plate 36 can also be stored in the corresponding guide groove. The staff only needs to hold the pull rod 37 located outside the mounting plate 31 to operate.

[0022] In one embodiment, a first magnet is installed on one side of the inserting plate 36 close to the corresponding supporting plate 32 , and a second magnet (not shown in the figure) capable of magnetically attracting the first magnet is installed in the corresponding slot of the supporting plate 32 .

[0023] In a specific implementation, when the corresponding plug-in board 36 is inserted into the corresponding slot, the first magnet on the plug-in board 36 is magnetically attracted to the second magnet in the slot, so that the plug-in board 36 can be effectively fixed inside the supporting plate 32, thereby effectively enhancing the installation stability of the plug-in board 36.

[0024] In one embodiment, the adjustment support component 38 includes an outer sleeve 381 vertically installed at the center of the mounting plate 31. The outer sleeve 381 has a rectangular shape, and an inner sleeve 382 is inserted inside the outer sleeve 381 so as to slide up and down. A spring 383 is vertically installed on the inner bottom wall of the outer sleeve 381, and the top of the spring 383 contacts the bottom of the inner sleeve 382. A threaded rod 384 is screwed inside the inner sleeve 382, ​​and the top and bottom of the threaded rod 384 extend outside the outer sleeve 381. A V-shaped mounting bracket 385 is hingedly provided at the top of the threaded rod 384, and the mounting bracket 385 is hinged to the first protective plate 34 and the second protective plate 35 on both sides away from the threaded rod 384.

[0025] When the rock falls on the first and second guard plates 34 and 35, the rock will fall back to the bottom of the support plate 32, and the support plate 32 will fall back to the bottom of the support plate 32.

[0026] In one embodiment, the supporting and buffering assembly 3 further includes a folding plate 39 hingedly arranged on a side of the corresponding first protective plate 34 and the second protective plate 35 away from each other.

[0027] In a specific implementation, when the support buffer assembly 3 located in the middle of the top of the load-bearing frame 2 is removed, since the corresponding first protective plate 34 or second protective plate 35 of the support buffer assembly 3 is blocked by other first protective plates 34 or second protective plates 35, a rotatable folding plate 39 is provided. When the corresponding first protective plate 34 or second protective plate 35 is folded in a V shape, the folding plate 39 is synchronously displaced and contacts the corresponding first protective plate 34 or second protective plate 35. At this time, the folding plate 39 will rotate to a corresponding angle for adaptation, so that the corresponding first protective plate 34 or second protective plate 35 will not be blocked during rotation.

[0028] In one embodiment, a soft protective layer is installed on the top of the first protective plate 34 and the second protective plate 35 , and the protective layer may be a rubber layer.

[0029] This design can further increase the safety of the first protective plate 34 and the second protective plate 35. When the falling rock initially collides with the first protective plate 34 and the second protective plate 35, the protective layer can first provide buffering protection.

[0030] In one embodiment, a plurality of through-holes are formed on the carrier frame 22 , and a plurality of corresponding through-holes are also formed on the supporting plate 32 .

[0031] In specific implementation, when the support buffer assembly 3 passes through the corresponding gap and moves above the water of the supporting frame 22, the support plate 32 is rotated to a horizontal posture. At this time, the through holes on the support plate 32 are aligned with the through holes on the supporting frame 22. The staff can then insert the bolts into the above-mentioned aligned through holes and install and fix them.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] In addition, "plurality" means two or more.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coal mining tunnel reinforcement protection structure, characterized in that: include: A connecting bracket (1), wherein a load-bearing frame (2) is provided on the connecting bracket (1), and the load-bearing frame (2) includes a plurality of bearing frames (22), and a gap is provided between each two adjacent bearing frames (22), and the number of the gaps is at least four; At least four support and buffer assemblies (3) are respectively passed through corresponding gaps and are detachably arranged on the load-bearing frame (2), wherein the support and buffer assemblies (3) include: A mounting plate (31) having support plates (32) rotatably provided on both sides thereof, wherein the support plates (32) can be rotated ninety degrees to a horizontal posture or a vertical downward posture; At least four shock absorbers (33) rotatably disposed on the mounting plate (31); A first protective plate (34) and a second protective plate (35) are hinged to each other, the combined length of the first protective plate (34) and the second protective plate (35) being greater than the combined length of the mounting plate (31) and the supporting plate (32), and being capable of rotating at their hinged joints to an unfolded posture or a folded posture, and the top of the corresponding shock absorber (33) is rotatably connected to the corresponding first protective plate (34) or second protective plate (35); An adjustment support component (38) capable of driving the first protective plate (34) and the second protective plate (35) to be adjusted to an unfolded posture or a folded posture; The supporting and buffering components (3) on the load-bearing frame (2) are arranged in an overlapping manner in an arch shape.

2. A coal mining tunnel reinforcement protection structure according to claim 1, characterized in that: Both sides of the mounting plate (31) are provided with transversely arranged guide grooves, the support buffer assembly (3) further comprises an inserting plate (36) slidably inserted into the corresponding guide groove, the interior of the supporting plate (32) is provided with a slot arranged along its length direction, and when the supporting plate (32) is rotated to a transverse posture, the corresponding inserting plate (36) can be inserted into the corresponding slot; A strip groove communicating with the guide groove is provided on the bottom wall of the mounting plate (31), and a pull rod (37) penetrating the strip groove and extending to the outside of the mounting plate (31) is provided on the inserting plate (36).

3. A coal mining tunnel reinforcement protection structure according to claim 2, characterized in that: A first magnet is provided on one side of the inserting plate (36) close to the corresponding supporting plate (32), and a second magnet capable of magnetically attracting the first magnet is provided in the corresponding slot of the supporting plate (32).

4. The coal mining tunnel reinforcement protection structure according to claim 1, characterized in that: The adjusting support component (38) includes an outer sleeve (381) arranged at the center of the mounting plate (31), the outer sleeve (381) has a rectangular shape, and an inner sleeve (382) is inserted into the inner sleeve so as to slide up and down. A spring (383) is provided on the inner bottom wall of the outer sleeve (381), and the top of the spring (383) contacts the bottom of the inner sleeve (382). A threaded rod (384) is provided inside the inner sleeve (382) in a threaded manner, and the top and bottom of the threaded rod (384) both extend outside the outer sleeve (381); A V-shaped mounting frame (385) is hingedly provided at the top of the threaded rod (384), and the mounting frame (385) is hingedly connected to the first protective plate (34) and the second protective plate (35) on both sides away from the threaded rod (384).

5. The coal mining tunnel reinforcement protection structure according to claim 1, characterized in that: The support and buffer assembly (3) further comprises a folding plate (39) hingedly arranged on a side of the corresponding first protective plate (34) and the second protective plate (35) that are away from each other.

6. The coal mining tunnel reinforcement protection structure according to claim 1, characterized in that: A soft protective layer is provided on the top of each of the first protective plate (34) and the second protective plate (35).

7. The coal mining tunnel reinforcement protection structure according to claim 1, characterized in that: The carrier frame (22) is provided with a plurality of through-holes, and the supporting plate (32) is also provided with a plurality of corresponding through-holes.

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