Mine dynamic pressure roadway buffering and reinforcing device

Abstract

The invention relates to the field of coal mine roadway reinforcement, in particular to a mine dynamic pressure roadway buffering and reinforcing device. The invention provides a mine dynamic pressure roadway buffering and reinforcing device which can buffer impact generated by roadway strain when a roadway generates dynamic pressure, effectively prevent the phenomena of roadway top plate sinking and floor heaving, and protect normal use of the roadway. A mine dynamic pressure roadway buffering and reinforcing device comprises bottom plates, stand columns and the like, the bottom plates are left and right, the upper sides of the bottom plates are connected with a left set of stand columns and a right set of stand columns, and each set is composed of a front stand column and a rear stand column. The roadway top plate is supported and buffered through the top plate buffering mechanism, deformation and sinking of the roadway top plate under dynamic pressure are prevented, the roadway bottom plate is prevented from bulging under the dynamic pressure through the bottom heaving prevention and treatment mechanism, impact generated by roadway strain can be buffered when the roadway generates the dynamic pressure, and the roadway safety is improved. The phenomena of roadway roof sinking and floor heaving are effectively prevented, and the normal use effect of the roadway is protected.

Description

Technical Field

[0001] The invention relates to the field of coal mine tunnel reinforcement, in particular to a mine dynamic pressure tunnel buffer reinforcement device. Background Art

[0002] In the mining process of underground mineral resources such as coal mines, with the increase of mining depth and the continuous advancement of mining activities, the dynamic pressure tunnels of mines are facing increasingly severe stability challenges. As an important channel for mine production, the stability of dynamic pressure tunnels is directly related to the production efficiency of mines and the safety of operators. However, due to the complex geological structure, stress redistribution caused by mining activities, and the influence of factors such as groundwater, dynamic pressure tunnels often have problems such as surrounding rock deformation, roof subsidence, and floor bulging, which seriously threaten the normal use of the tunnels and the safe production of mines.

[0003] Existing tunnel reinforcement methods, such as anchor support and shotcrete, can improve the stability of tunnels to a certain extent, but their reinforcement effects are often limited when faced with strong dynamic pressure, and it is difficult to effectively resist the deformation and damage of the surrounding rock. Especially in deep mining and high-stress areas, the limitations of traditional reinforcement methods are more prominent, and they cannot meet the needs of safe production in mines. They are prone to cause problems such as roof sinking and floor bulging in tunnels, affecting the normal use of the tunnels.

[0004] Therefore, a mine dynamic pressure tunnel buffering and reinforcement device has been developed that can buffer the impact of tunnel strain when dynamic pressure occurs in the tunnel, effectively prevent the tunnel roof from sinking and bottom bulging, and protect the normal use of the tunnel. Summary of the invention

[0005] In order to overcome the shortcomings of existing tunnel reinforcement methods, which often have limited reinforcement effects when facing strong dynamic pressure, easily leading to problems such as roof sinking and bottom bulging in the tunnel, thus affecting the normal use of the tunnel, the present invention provides a mine dynamic pressure tunnel buffering and reinforcement device that can buffer the impact of tunnel strain when dynamic pressure occurs in the tunnel, effectively prevent the tunnel roof from sinking and bottom bulging, and protect the normal use of the tunnel.

[0006] The technical implementation scheme of the present invention is: a mine dynamic pressure tunnel buffering reinforcement device, including a bottom plate, columns, a top plate buffering mechanism and a bottom drum prevention mechanism, there are two left and right bottom plates, the upper sides of the bottom plates are connected to two groups of left and right columns, each group is composed of two front and rear columns, a top plate buffering mechanism that can buffer the top of the tunnel arc is provided between the columns, and a bottom drum prevention mechanism that can prevent the bottom drum phenomenon of the tunnel is provided on the bottom plate.

[0007] In a preferred embodiment of the present invention, the top plate buffer mechanism includes an arc top, a baffle, a first fixed seat, a first damper and a connecting plate. The arc top is connected between the upper sides of the columns, the baffle is connected to the arc top, and multiple groups of first fixed seats are connected to the lower part of the arc top. Each group is composed of two front and rear first fixed seats. The first fixed seats are connected to the first dampers, and the first dampers pass through the baffle. Connecting plates are connected between the first dampers in the same group. When the surrounding rock of the tunnel is subjected to dynamic pressure, the impact generated by the stress released inside the tunnel causes the connecting plate to move, and the impact is buffered by the first damper on the first fixed seat.

[0008] In a preferred embodiment of the present invention, a bottom drum prevention mechanism is also included, which includes an arch frame, a screw, a fixed frame, a second damper and a buffer plate. The arch frame is connected between the lower sides of the bottom plates, and multiple screws are placed on the bottom plates. The screws pass through the adjacent bottom plates and are threadedly connected to the arch frame. The top of the arch frame is connected to the fixed frame, and the lower part of the arch frame is slidably connected to multiple buffer plates. Multiple second dampers are connected between the buffer plate and the fixed frame. When the surrounding rock at the bottom of the tunnel is subjected to dynamic pressure, the impact force generated impacts the buffer plate, causing the buffer plate to deform, and the impact is buffered under the action of the second damper on the fixed frame.

[0009] In a preferred embodiment of the present invention, it also includes a lateral protection mechanism, which includes a rotating plate, a first connecting rod, a rotating frame, a fixed rod, a first fixed plate and a spring, the rotating plate is rotatably connected to the side of the bottom plate that is away from each other, the first connecting rod is rotatably connected to the side of the upper part of the rotating plate that is close to each other, the rotating frame is rotatably connected to the first connecting rod, the rotating frame is rotatably connected to the first connecting rod, the columns of the same group on the inner side of the bottom plate are connected to the fixed rods, the fixed rods are rotatably connected to the adjacent rotating frames, the upper parts of the columns of the same group on the outer side of the bottom plate are connected to the first fixed plate, and a plurality of springs are connected between the first fixed plate and the adjacent rotating plates, so that the rotating plate rotates inward, the first connecting rod rotates, the rotating frame rotates on the fixed rod, and the spring on the first fixed plate is squeezed and contracted.

[0010] In a preferred embodiment of the present invention, it also includes an expansion and strengthening mechanism, the expansion and strengthening mechanism includes a second fixed plate, a fixed tube, a second fixed seat, a connecting rod, a lifting plate, a sliding seat, and a second connecting rod, the second fixed plate is connected between the middle parts of the same group of columns on the outer side of the bottom plate, the second fixed plate is connected to the fixed tube, the second fixed seat is connected on the side of the fixed tube away from each other, the fixed tube is slidably connected to the sliding seat, the fixed seat and the sliding seat are rotatably connected with the connecting rod, the lifting plate is rotatable between adjacent connecting rods, the second connecting rod is slidably connected on the ends of the fixed tubes close to each other, the second connecting rods are connected to the adjacent sliding seats, and the second connecting rods are extruded and matched with the adjacent rotating frames. When the side wall of the laneway is deformed due to dynamic pressure, the rotating plate rotates inward, the first connecting rod rotates, and the rotating frame rotates. Through the extrusion of the rotating frame and the second connecting rod, the second connecting rod slides outward in the fixed tube, driving the sliding seat to slide to the outside of the fixed tube, causing the connecting rod to rotate, so that the lifting plate is expanded and fixed in the fixing hole.

[0011] In a preferred embodiment of the present invention, an extrusion block is provided on each of the second connecting rods.

[0012] In a preferred embodiment of the present invention, a docking mechanism is also included, which includes a protrusion and a docking block. A plurality of protrusions are connected to the front inner column, and a plurality of docking blocks are connected to the rear inner column. When it is necessary to expand the buffer reinforcement area of ​​the tunnel, the protrusion can be connected to the docking block on the column of another device through the protrusion.

[0013] In a preferred embodiment of the present invention, the docking blocks are all provided with docking grooves.

[0014] In a preferred embodiment of the present invention, a reinforcement mechanism is also included, and the reinforcement mechanism includes a reinforcement frame and a support plate. The reinforcement frame is connected between the inner columns, and the reinforcement frame is connected to the arc top. The inner sides of the lower inner columns of the bottom plate are connected to the support plates, and the support plates are connected to the arch frame. The reinforcement frame is installed between the columns and the arc top so that the reinforcement frame strengthens the support effect on the arc top. At the same time, the support plate is installed between the columns and the arch frame so that the support plate strengthens the support effect on the arch frame.

[0015] In a preferred embodiment of the present invention, the reinforcing frame and the abutment plate are both triangular structures.

[0016] Beneficial effects: 1. The present invention supports and buffers the tunnel roof through the roof buffer mechanism to prevent the tunnel roof from deforming and sinking under dynamic pressure, and prevents the tunnel bottom plate from bulging under dynamic pressure through the bottom drum prevention mechanism, thereby achieving the effect of buffering the impact of tunnel strain when dynamic pressure occurs in the tunnel, effectively preventing the tunnel roof from sinking and bottom drumping, and protecting the normal use of the tunnel.

[0017] 2. When the surrounding rock at the bottom of the tunnel is subjected to dynamic pressure, the impact force generated impacts the buffer plate, causing the buffer plate to deform. The impact is buffered under the action of the second damper on the fixed frame to prevent the tunnel bottom plate from deforming and bulging, thereby achieving the effect of reinforcing the bottom of the tunnel and preventing the tunnel bottom plate from deforming and bulging under the action of dynamic pressure.

[0018] 3. When the surrounding rock at the bottom of the tunnel is subjected to dynamic pressure, the impact force generated impacts the buffer plate, causing the buffer plate to deform. The impact is buffered under the action of the second damper on the fixed frame to prevent the tunnel bottom plate from deforming and bulging, thereby achieving the effect of reinforcing the bottom of the tunnel and preventing the tunnel bottom plate from deforming and bulging under the action of dynamic pressure.

[0019] 4. The present invention loosens the rotating plate after the base plate is installed, and under the action of the spring, the rotating plate rotates outward to press against the side wall of the tunnel, thereby reinforcing the side wall of the tunnel, thereby achieving the effect of reinforcing the side wall of the tunnel by the rotating plate and preventing the side wall of the tunnel from deforming under dynamic pressure.

[0020] 5. When the side wall of the tunnel is deformed due to the dynamic pressure, the present invention causes the rotating plate to rotate inward, the first connecting rod to rotate, the rotating frame to rotate, the second connecting rod to slide outward in the fixed tube, and the sliding seat to slide toward the outside of the fixed tube, so that the connecting rod rotates, and the lifting plate is expanded and fixed in the fixed hole, thereby achieving the effect of strengthening the fixed support of the side wall of the tunnel under the dynamic pressure of the tunnel and avoiding the deformation of the side wall of the tunnel.

[0021] 6. When it is necessary to expand the buffer reinforcement area of ​​the lane, the present invention can connect a plurality of devices by means of a protrusion and a docking block on another device column, thereby achieving the effect of expanding the buffer reinforcement area of ​​the device by splicing and improving the stability of the reinforcement support.

[0022] 7. The present invention installs a reinforcing frame between the column and the top of the arc so that the reinforcing frame strengthens the supporting effect on the top of the arc, and installs a support plate between the column and the arch frame so that the support plate strengthens the supporting effect on the arch frame. Thus, the reinforcing frame and the support plate can assist in supporting the top of the arc and the arch frame, prevent deformation of weak points during support, and improve the reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the top plate buffer mechanism of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the first bottom drum prevention mechanism of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the second bottom drum prevention mechanism of the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the first lateral protection mechanism of the present invention.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the second lateral protection mechanism of the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the first expansion and reinforcement mechanism of the present invention.

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second expansion and reinforcement mechanism of the present invention.

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the docking mechanism of the present invention.

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the reinforcement mechanism of the present invention.

[0034] Marked in the figure: 1-bottom plate, 2-column, 3-top plate buffer mechanism, 31-arc top, 32-baffle, 33-first fixed seat, 34-first damper, 35-connecting plate, 4-bottom drum prevention mechanism, 41-arch frame, 42-screw, 43-fixed frame, 44-second damper, 45-buffer plate, 5-lateral protection mechanism, 51-rotating plate, 52-first connecting rod, 53-rotating frame, 54-fixed rod, 55-first fixed plate, 56-spring, 6-expansion reinforcement mechanism, 61-second fixed plate, 62-fixed tube, 63-second fixed seat, 64-connecting rod, 65-lifting plate, 66-sliding seat, 67-second connecting rod, 7-docking mechanism, 71-bump, 72-docking block, 8-reinforcement mechanism, 81-reinforcement frame, 82-retaining plate. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0036] A mine dynamic pressure tunnel buffer reinforcement device, such as Figure 1 and Figure 2As shown, it includes a bottom plate 1, columns 2, a top plate buffer mechanism 3 and a bottom drum prevention mechanism 4. The bottom plate 1 has two left and right sides, and the upper side of the bottom plate 1 is connected to two groups of left and right columns 2, each group is composed of two front and rear columns 2, a top plate buffer mechanism 3 is arranged between the columns 2, and a bottom drum prevention mechanism 4 is arranged on the bottom plate 1.

[0037] like Figure 1 and Figure 3 As shown, the top plate buffer mechanism 3 includes an arc top 31, a baffle 32, a first fixed seat 33, a first damper 34 and a connecting plate 35. The arc top 31 is connected between the upper sides of the columns 2, the baffle 32 is connected to the arc top 31, and eight groups of first fixed seats 33 are connected to the lower part of the arc top 31, each group is composed of two front and rear first fixed seats 33, and the first fixed seats 33 are connected to the first dampers 34, and the first dampers 34 pass through the baffle 32, and the first dampers 34 in the same group are connected with connecting plates 35.

[0038] When using the present invention, first move the device to the reinforcement position of the tunnel, then place the left and right bottom plates 1 on both sides of the tunnel respectively, and then install the arc top 31 between the columns 2, and make the connecting plate 35 contact with the top of the tunnel, so that the connecting plate 35 supports the tunnel. When the tunnel surrounding rock is subjected to dynamic pressure, the impact generated by the stress released inside the tunnel causes the connecting plate 35 to move, and the impact is buffered under the action of the first damper 34 on the first fixed seat 33, thereby reducing the stress impact caused by the dynamic pressure of the tunnel, preventing the connecting plate 35 from deformation and damage, maintaining the reinforcement stability, and improving the support and reinforcement effect.

[0039] like Figure 1 , Figure 4 and Figure 5 As shown, it also includes a bottom drum prevention mechanism 4, which includes an arch frame 41, a screw 42, a fixed frame 43, a second damper 44 and a buffer plate 45. The arch frame 41 is connected between the lower sides of the bottom plates 1, and four screws 42 are placed on the bottom plates 1. The screws 42 pass through the adjacent bottom plates 1 and are threadedly connected to the arch frame 41. The top of the arch frame 41 is connected to the fixed frame 43, and three buffer plates 45 are slidably connected to the lower part of the arch frame 41. Two second dampers 44 are connected between the buffer plate 45 and the fixed frame 43.

[0040] The bottom drum prevention mechanism 4 of the device can prevent the bottom drum of the tunnel from deforming. When the bottom plate 1 is installed on both sides of the tunnel, the arch frame 41 is connected to the lower side of the bottom plate 1 by the screw 42, and the buffer plate 45 on the arch frame 41 is made to fit the bottom of the tunnel. When the surrounding rock at the bottom of the tunnel is subjected to dynamic pressure, the impact force generated impacts the buffer plate 45, causing the buffer plate 45 to deform. The impact is buffered by the second damper 44 on the fixed frame 43 to prevent the bottom plate 1 of the tunnel from deforming and bulging, thereby reinforcing the bottom of the tunnel and preventing the bottom plate 1 of the tunnel from deforming and bulging under the action of dynamic pressure. At the same time, the baffle 32 can prevent the top of the tunnel from being isolated and prevent the top gravel from detaching under the action of dynamic pressure to cause an accident.

[0041] like Figure 1 , Figure 6 and Figure 7 As shown, a lateral protection mechanism 5 is also included, which includes a rotating plate 51, a first connecting rod 52, a rotating frame 53, a fixed rod 54, a first fixed plate 55 and a spring 56. The rotating plate 51 is rotatably connected to the side of the bottom plate 1 that is away from each other, and the first connecting rod 52 is rotatably connected to the side of the upper part of the rotating plate 51 that is close to each other. The rotating frame 53 is rotatably connected to the first connecting rod 52, and the fixed rods 54 are connected between the columns 2 of the same group on the inner side of the bottom plate 1. The fixed rods 54 are rotatably connected to the adjacent rotating frames 53. The first fixed plates 55 are connected between the upper parts of the columns 2 of the same group on the outer side of the bottom plate 1, and three springs 56 are connected between the first fixed plates 55 and the adjacent rotating plates 51.

[0042] The lateral protection mechanism 5 of the device can be used to reinforce the side walls of the tunnel. When the base plate 1 is installed in the tunnel, the rotating plate 51 is rotated inwardly, the first connecting rod 52 is rotated, the rotating frame 53 is rotated on the fixed rod 54, and the spring 56 on the first fixed plate 55 is squeezed and contracted. After the base plate 1 is installed, the rotating plate 51 is released, and the rotating plate 51 is rotated outwardly and pressed against the side wall of the tunnel under the action of the spring 56, thereby reinforcing the side wall of the tunnel. The rotating plate 51 can be used to reinforce the side wall of the tunnel and prevent the side wall of the tunnel from being deformed under dynamic pressure.

[0043] like Figure 1 , Figure 8 and Fig. 9As shown, an expansion and reinforcement mechanism 6 is also included, and the expansion and reinforcement mechanism 6 includes a second fixed plate 61, a fixed tube 62, a second fixed seat 63, a connecting rod 64, a lifting plate 65, a sliding seat 66 and a second connecting rod 67. The second fixed plate 61 is connected between the middle parts of the columns 2 of the same group on the outer side of the bottom plate 1, and the second fixed plate 61 is connected to the fixed tube 62. The second fixed seat 63 is connected to the side of the fixed tube 62 away from each other, and the sliding seat 66 is slidably connected to the fixed tube 62. The fixed seat and the sliding seat 66 are rotatably connected with the connecting rod 64, and the lifting plate 65 is rotatably connected between adjacent connecting rods 64. The second connecting rod 67 is slidably connected to the end of the fixed tube 62 that is close to each other, and the second connecting rod 67 is connected to the adjacent sliding seat 66. The second connecting rod 67 is extruded and matched with the adjacent rotating frame 53, and the second connecting rod 67 is provided with an extrusion block to facilitate the extrusion and fit with the rotating frame 53.

[0044] The expansion reinforcement mechanism 6 of the present device can enhance the support and reinforcement effect on the side wall of the tunnel. When installing the present device, a reinforcement hole is pre-opened on the side wall of the tunnel. During installation, the fixed tube 62 is located in the reinforcement hole. When the side wall of the tunnel is deformed due to the dynamic pressure, the rotating plate 51 rotates inward, the first connecting rod 52 rotates, and the rotating frame 53 rotates. Through the squeezing action of the rotating frame 53 and the second connecting rod 67, the second connecting rod 67 slides outward in the fixed tube 62, driving the sliding seat 66 to slide toward the outside of the fixed tube 62, so that the connecting rod 64 rotates, and the lifting plate 65 is expanded and fixed in the fixing hole, thereby fixing the column 2 through the second fixing plate 61, thereby playing a role in strengthening the fixed support effect of the side wall of the tunnel under the dynamic pressure of the tunnel and avoiding deformation of the side wall of the tunnel.

[0045] like Figure 1 and Fig.10 As shown, it also includes a docking mechanism 7, which includes a protrusion 71 and a docking block 72. Five protrusions 71 are connected to the front inner column 2, and five docking blocks 72 are connected to the rear inner column 2. The docking blocks 72 are all provided with docking grooves for easy docking.

[0046] The docking mechanism 7 of the device can be used to facilitate splicing of the device. When the buffer reinforcement area of ​​the tunnel needs to be expanded, the protrusion 71 can be snapped into the docking block 72 on another device column 2 to splice multiple devices, thereby expanding the buffer reinforcement area of ​​the device through splicing and improving the stability of the reinforcement support.

[0047] like Figure 1 and Fig.11As shown, a reinforcement mechanism 8 is also included, and the reinforcement mechanism 8 includes a reinforcement frame 81 and a support plate 82. The reinforcement frame 81 is connected between the inner columns 2, and the reinforcement frame 81 is connected to the arc top 31. The lower inner sides of the inner columns 2 of the bottom plate 1 are connected to the support plates 82, and the support plates 82 are connected to the arch frame 41. The reinforcement frame 81 and the support plate 82 are both triangular structures, which can improve the reinforcement effect.

[0048] By using the reinforcement mechanism 8 of the present device, the supporting effect of the arc top 31 and the arch frame 41 can be strengthened. After the arc top 31 and the arch frame 41 are installed, the reinforcement frame 81 is installed between the column 2 and the arc top 31, so that the reinforcement frame 81 strengthens the supporting effect on the arc top 31. At the same time, the support plate 82 is installed between the column 2 and the arch frame 41, so that the support plate 82 strengthens the supporting effect on the arch frame 41, thereby playing a role in assisting the support of the arc top 31 and the arch frame 41 through the reinforcement frame 81 and the support plate 82, preventing the deformation of the weak points during support, and improving the reinforcement effect.

[0049] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A mine dynamic pressure tunnel buffer reinforcement device, Its characteristics are: The invention comprises a bottom plate (1), columns (2), a top plate buffer mechanism (3) and a bottom drum prevention mechanism (4). The bottom plate (1) has two left and right sides. The upper side of the bottom plate (1) is connected to two groups of left and right columns (2), each group consisting of two front and rear columns (2). A top plate buffer mechanism (3) capable of buffering the arc top (31) of the tunnel is arranged between the columns (2). The bottom plate (1) is provided with a bottom drum prevention mechanism (4) capable of preventing the bottom drum phenomenon of the tunnel.

2. A mine dynamic pressure tunnel buffer reinforcement device according to claim 1, Its characteristics are: The top plate buffer mechanism (3) comprises an arc top (31), a baffle (32), a first fixed seat (33), a first damper (34) and a connecting plate (35); the arc top (31) is connected between the upper sides of the columns (2); the baffle (32) is connected to the arc top (31); the lower part of the arc top (31) is connected to a plurality of groups of first fixed seats (33); each group is composed of two front and rear first fixed seats (33); the first fixed seats (33) are connected to the first dampers (34); the first dampers (34) pass through the baffle (32); the first dampers (34) of the same group are connected to the connecting plates (35); when the surrounding rock of the tunnel is subjected to dynamic pressure, the impact generated by the stress released inside the tunnel causes the connecting plate (35) to move, and the impact is buffered under the action of the first dampers (34) on the first fixed seats (33).

3. A mine dynamic pressure tunnel buffer reinforcement device according to claim 1, Its characteristics are: The invention also comprises a bottom drum prevention mechanism (4), which comprises an arch frame (41), a screw rod (42), a fixing frame (43), a second damper (44) and a buffer plate (45). The arch frame (41) is connected between the lower sides of the bottom plate (1), a plurality of screw rods (42) are placed on the bottom plate (1), the screw rods (42) pass through the adjacent bottom plates (1) and are threadedly connected to the arch frame (41), the top of the arch frame (41) is connected to the fixing frame (43), the lower part of the arch frame (41) is slidably connected to a plurality of buffer plates (45), and a plurality of second dampers (44) are connected between the buffer plate (45) and the fixing frame (43). When the surrounding rock at the bottom of the tunnel is subjected to dynamic pressure, the impact force generated impacts the buffer plate (45), causing the buffer plate (45) to deform, and the impact is buffered under the action of the second damper (44) on the fixing frame (43).

4. A mine dynamic pressure tunnel buffer reinforcement device according to claim 3, Its characteristics are: The invention also comprises a lateral protection mechanism (5), the lateral protection mechanism (5) comprising a rotating plate (51), a first connecting rod (52), a rotating frame (53), a fixing rod (54), a first fixing plate (55) and a spring (56); the rotating plate (51) is rotatably connected to the side of the bottom plate (1) away from each other; the first connecting rod (52) is rotatably connected to the side of the top of the rotating plate (51) close to each other; the rotating frame (53) is rotatably connected to the first connecting rod (52); the columns (2) of the same group on the inner side of the bottom plate (1) are connected to each other; There are fixed rods (54), and the fixed rods (54) are rotatably connected to the adjacent rotating frames (53). The upper parts of the same group of columns (2) on the outer side of the bottom plate (1) are connected with first fixed plates (55). A plurality of springs (56) are connected between the first fixed plates (55) and the adjacent rotating plates (51), so that the rotating plates (51) rotate inward, so that the first connecting rods (52) rotate, so that the rotating frames (53) rotate on the fixed rods (54), and at the same time, the springs (56) on the first fixed plates (55) are squeezed and contracted.

5. A mine dynamic pressure tunnel buffer reinforcement device according to claim 4, Its characteristics are: The expansion and reinforcement mechanism (6) also includes a second fixed plate (61), a fixed tube (62), a second fixed seat (63), a connecting rod (64), a lifting plate (65), a sliding seat (66) and a second connecting rod (67). The middle parts of the columns (2) in the same group on the outer side of the bottom plate (1) are connected to the second fixed plate (61), the second fixed plate (61) is connected to the fixed tube (62), the side of the fixed tube (62) away from each other is connected to the second fixed seat (63), the fixed tube (62) is slidably connected to the sliding seat (66), the fixed seat and the sliding seat (66) are rotatably connected to the connecting rod (64), and the lifting plate (65) is rotatably connected between adjacent connecting rods (64). The fixed tubes (62) are slidably connected to one end thereof that is close to each other with a second connecting rod (67), and the second connecting rod (67) is connected to an adjacent sliding seat (66). The second connecting rod (67) is squeezed and matched with an adjacent rotating frame (53). When the side wall of the tunnel is deformed due to the dynamic pressure, the rotating plate (51) rotates inward, the first connecting rod (52) rotates, and the rotating frame (53) rotates. Through the squeezing action of the rotating frame (53) and the second connecting rod (67), the second connecting rod (67) slides outward in the fixed tube (62), driving the sliding seat (66) to slide toward the outside of the fixed tube (62), causing the connecting rod (64) to rotate, so that the lifting plate (65) is expanded and fixed in the fixing hole.

6. A mine dynamic pressure tunnel buffer reinforcement device according to claim 5, Its characteristics are: The second connecting rods (67) are each provided with an extrusion block.

7. A mine dynamic pressure tunnel buffer reinforcement device according to claim 5, Its characteristics are: The device also comprises a docking mechanism (7), the docking mechanism (7) comprising a protrusion (71) and a docking block (72), a plurality of protrusions (71) are connected to the front inner column (2), and a plurality of docking blocks (72) are connected to the rear inner column (2), and when it is necessary to expand the buffer reinforcement area of ​​the lane, the protrusion (71) can be connected to the docking block (72) on another device column (2) by means of a clamping connection.

8. A mine dynamic pressure tunnel buffer reinforcement device according to claim 7, Its characteristics are: The docking blocks (72) are all provided with docking grooves.

9. A mine dynamic pressure tunnel buffer reinforcement device according to claim 7, Its characteristics are: The invention also comprises a reinforcement mechanism (8), the reinforcement mechanism (8) comprising a reinforcement frame (81) and a stop plate (82), the reinforcement frame (81) being connected between the inner columns (2), the reinforcement frame (81) being connected to the arc top (31), the stop plates (82) being connected to the inner sides of the lower parts of the inner columns (2) of the bottom plate (1), and the stop plates (82) being connected to the arch frame (41), the reinforcement frame (81) being installed between the columns (2) and the arc top (31), so that the reinforcement frame (81) strengthens the supporting effect on the arc top (31), and the stop plate (82) being installed between the columns (2) and the arch frame (41), so that the stop plate (82) strengthens the supporting effect on the arch frame (41).

10. A mine dynamic pressure tunnel buffer reinforcement device according to claim 9, Its characteristics are: The reinforcing frame (81) and the abutment plate (82) are both triangular structures.

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