CN112627891A - Safety protection method for high gas area outside coal mine tunnel sealing wall - Google Patents
Safety protection method for high gas area outside coal mine tunnel sealing wall Download PDFInfo
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- CN112627891A CN112627891A CN202011423302.1A CN202011423302A CN112627891A CN 112627891 A CN112627891 A CN 112627891A CN 202011423302 A CN202011423302 A CN 202011423302A CN 112627891 A CN112627891 A CN 112627891A
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- 239000003245 coal Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 34
- 230000037431 insertion Effects 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The safety protection method for the high gas area outside the coal mine tunnel sealing wall specifically comprises the following steps: (1) processing and manufacturing a plurality of supports and a plurality of flexible protective fences; (2) a first support is arranged on the leftmost side in a rectangular roadway on the outer side of the coal mine roadway sealing wall; (3) a second support is arranged on the right side of the first support, and the distance between the first support and the second support is the width of the flexible protective fence; (4) mounting a flexible protective fence between the first bracket and the second bracket; (5) and (5) repeating the steps (3) and (4) for multiple times, and splicing a plurality of flexible protective fences until the rectangular roadway is plugged. The rectangular roadway outside the coal mine roadway airtight wall is plugged by the spliced flexible protective fence, the operation is simple, the disassembly and the assembly are rapid, the rectangular rope net is made of aramid fiber, and the material is fireproof, antistatic, corrosion-resistant and recyclable.
Description
Technical Field
The invention belongs to the field of coal mine safety protection, and particularly relates to a safety protection method for a high gas area outside a coal mine tunnel sealing wall.
Background
At present, in the coal mine production process, safety is the first place, and according to the regulation of coal mine safety regulations, a fence is arranged at the position, away from a roadway outlet, of the outer side of a roadway sealing wall, so that safety accidents caused by the fact that people enter the roadway by mistake are prevented. There are still many life and property threatening problems in the existing downhole production environment. The communication lane between the two parallel working faces needs to be blocked after being stopped, but a space is reserved between the lane opening and the blocking face, the gas content in the space is high, and life danger can be caused if people enter the space by mistake. At present, the fence is usually made of battens, wire netting and the like, the fence making process is complex, labor intensity is high, time and labor are wasted, the battens do not have flame retardance, the wire netting is not corrosion-resistant, and the fence is not recyclable. Can not meet the safety requirements of the existing coal mine production.
Disclosure of Invention
The invention aims to provide a safety protection method for a high gas area outside a coal mine tunnel sealing wall.
In order to achieve the purpose, the invention adopts the following technical scheme:
the safety protection method for the high gas area outside the coal mine tunnel sealing wall specifically comprises the following steps:
(1) processing and manufacturing a plurality of supports and a plurality of flexible protective fences;
(2) a first support is arranged on the leftmost side in a rectangular roadway on the outer side of the coal mine roadway sealing wall;
(3) a second support is arranged on the right side of the first support, and the distance between the first support and the second support is the width of the flexible protective fence;
(4) mounting a flexible protective fence between the first bracket and the second bracket;
(5) and (5) repeating the steps (3) and (4) for multiple times, and splicing a plurality of flexible protective fences until the rectangular roadway is plugged.
The support comprises two vertically arranged telescopic rod groups, the two telescopic rod groups are identical in structure and are symmetrically arranged up and down, the upper telescopic rod group comprises an insertion rod and a fixed pipe, the insertion rod is vertically inserted into the fixed pipe, the upper end of the insertion rod extends out of the upper end of the fixed pipe, a locking bolt is mounted on the upper side of the outer wall of the fixed pipe, the inner end of the locking bolt extends into the fixed pipe and is pressed on the outer wall of the insertion rod, a fixed support is fixedly mounted at the upper end of the insertion rod, an anti-slip pad is arranged on the upper surface of the fixed support, a C-shaped pipe horizontally arranged in the left-right direction is fixedly connected between the front side of the lower surface of the fixed support and the upper side of the front side of the outer wall of the insertion rod, the left side and the right side of the C-shaped pipe face the left and the right side;
hinge before the fixed pipe lower extreme outer wall front side portion of upside and the fixed pipe upper end outer wall front side portion of downside, connect through latched device between the fixed pipe upper end outer wall rear side portion of upside and the fixed pipe upper end outer wall rear side portion of downside.
The fixed pipe of downside includes two connecting pipes, two connecting pipes correspond from top to bottom, the outer circumference of the connecting pipe downside of upside is equipped with first external screw thread, the outer circumference of lateral part is equipped with the second external screw thread on the connecting pipe of downside, the soon of first external screw thread and second external screw thread is opposite, be connected with the thread bush between two connecting pipes, the interior circumference of thread bush is equipped with the internal thread, the outer circumference threaded connection of lateral part is gone up the lateral part in the thread bush in the connecting pipe downside of upside, the outer circumference threaded connection of lateral part is gone up at the thread bush downside in the connecting pipe of downside, pass through between the connecting pipe upper end outer wall front side part of fixed pipe lower extreme outer wall front side part of upside and upside the hinge articulated, pass through between the fixed pipe lower.
The flexible protective fence comprises a rectangular rope net, wherein the upper side edge and the lower side edge of the rectangular rope net are respectively provided with a transverse pipe, the left side edge and the right side edge of the rectangular rope net are respectively connected with an elastic rope, the two transverse pipes are same in structure and are arranged in an up-and-down symmetrical manner, the transverse pipes are horizontally arranged along the left-and-right direction, the right ends of the transverse pipes are integrally formed with pipe joints, the outer diameters of the pipe joints are equal to the inner diameters of the transverse pipes, the lower side pipe walls of the transverse pipes on the upper side are provided with guide long holes along the left-and-right direction, guide long rods are fixedly arranged in the transverse pipes on the upper side, the outer diameters of the guide long rods are equal to the inner diameters of the transverse pipes, the lower side parts of the guide long rods are provided with T-shaped grooves which are opened and are large in the left-and-right direction, the T-shaped, the upper side of the rectangular rope net penetrates through the guide long hole to extend into the transverse pipe and is fixedly connected with the bottom of each T-shaped sliding block;
fixedly connected with bail on the lateral wall front side portion of coupling, left side, front side and the equal open joint slot hole in rear side are seted up along the left and right sides direction to the left end pipe wall front side portion of violently managing, and the base right part of joint slot hole is equipped with the open draw-in groove of upside.
The rectangular rope net is made of aramid fiber, and meshes of the rectangular rope net are rhombic.
The step (2) is specifically as follows: pulling out the insertion rod in the upper telescopic rod group of the first bracket to the longest pull-out position, screwing up the locking bolt on the upper side to fix the insertion rod in the upper telescopic rod group, supporting the fixed support on the lower side, contacting the antiskid pad on the lower side with the ground, lifting up the fixed pipe on the upper side, butting the lower end of the fixed pipe on the upper side with the upper end of the fixed pipe on the lower side, fastening and fixedly connecting the fixed pipe on the upper side with the fixed pipe on the lower side through a corresponding locking mechanism, pulling out the insertion rod in the lower telescopic rod group until the fixed support on the upper side contacts with the top of the rectangular roadway, contacting the antiskid pad on the upper side with the top of the rectangular roadway, rotating the threaded sleeve on the fixed pipe on the lower side to move the two connecting pipes back and back, increasing the distance, increasing the overall length of the fixed pipe on the lower side, pressing the antiskid pad on the lower side with the ground, pressing the antiskid, the first support is integrally supported tightly, and the first support is installed.
The step (3) is specifically as follows: pulling out the insertion rod in the upper telescopic rod group of the second bracket to the longest pull-out position, screwing up the locking bolt on the upper side to fix the insertion rod in the upper telescopic rod group, placing the lower fixed support in a supporting manner at the length position which is away from a transverse pipe on the right side of the first bracket, contacting the antiskid pad on the lower side with the ground, lifting up the upper fixed pipe to butt joint the lower end of the upper fixed pipe with the upper end of the lower fixed pipe, fastening and fixedly connecting the upper fixed pipe with the lower fixed pipe through a corresponding locking mechanism, pulling out the insertion rod in the lower telescopic rod group until the upper fixed support contacts with the top of the rectangular roadway, contacting the antiskid pad on the upper side with the top of the rectangular roadway, rotating the threaded sleeve on the lower fixed pipe to enable the two connecting pipes to move back to back and forth, increasing the distance, increasing the overall length of the lower fixed pipe, thereby compressing the antiskid pad on the lower side with the ground, the anti-slip mat of upside compresses tightly with the top in rectangle tunnel, and the whole support of second support is tight, accomplishes the installation of second support.
The step (4) is specifically as follows: the left end of the transverse pipe on the upper side of the rectangular rope net is correspondingly inserted into the right port of the C-shaped pipe on the upper side of the first bracket leftwards, then the right end of the transverse pipe at the upper side of the rectangular rope net is correspondingly inserted into the left port of the C-shaped pipe at the upper side of the second bracket by moving rightwards, then the transverse pipe at the lower side of the rectangular rope net is pulled downwards, so that the rectangular rope net is pulled downwards, the left end of the transverse pipe at the lower side of the rectangular rope net is correspondingly inserted into the right port of the C-shaped pipe at the lower side of the first bracket leftwards, then moves rightwards to ensure that the right end of the transverse pipe at the lower side of the rectangular rope net is correspondingly inserted into the left port of the C-shaped pipe at the lower side of the second bracket, finally, the elastic ropes on the left side of the rectangular rope net are fixedly connected to the hooks on the first support, the elastic ropes on the right side of the rectangular rope net are fixedly connected to the hooks on the second support, and the left side and the right side of the rectangular rope net are prevented from shaking, so that the flexible protective fence is installed; wherein, the in-process that the rectangle fag end was being pulled open, because under the unchangeable condition of the whole area of rectangle fag end, the left and right sides limit of rectangle fag end is elongated along with the elasticity rope together, then the last side and the lower side of rectangle fag end just can shorten, thereby the last side of rectangle fag end just can order about each T type slider of violently intraductal each piece of T type slider of upside and remove in T type groove and the distance of two adjacent T type sliders reduces, two adjacent T type sliders just can extrude the compression spring that is located in the middle of them, the lower side of rectangle fag end is with the last side of rectangle fag end, so, when the flexible fence of dismouting protection, the left and right sides limit of rectangle fag end resumes to initial length along with the elasticity rope together, the upper and lower both sides limit of rectangle fag end also can resume to initial length under the elasticity of compression spring along with.
The step (5) is specifically as follows: repeating the steps (2) and (3) for a plurality of times, and installing a plurality of supports, wherein when installing a second flexible protective fence, the left end of the transverse pipe on the upper side of the second rectangular rope net is correspondingly spliced with the pipe joint at the right end of the transverse pipe on the upper side of the first rectangular rope net, the staple on the pipe joint at the right end of the transverse pipe on the upper side of the first rectangular rope net is correspondingly clamped in the clamping slot hole at the left end of the transverse pipe on the upper side of the second rectangular rope net and is positioned in the clamping slot, the left end of the transverse pipe on the lower side of the second rectangular rope net is correspondingly spliced with the pipe joint at the right end of the transverse pipe on the lower side of the first rectangular rope net, the staple on the pipe joint at the right end of the transverse pipe on the lower side of the first rectangular rope net is correspondingly clamped in the clamping slot hole at the left end of the transverse pipe on, until the rectangular roadway is plugged.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, specifically, the invention adopts a splicing flexible protective fence to plug the rectangular roadway outside the closed wall of the coal mine roadway, the bracket is composed of two vertically arranged telescopic rod groups, the fixed pipes of the two telescopic rod groups are hinged through hinges, the folding and the convenient storage can be realized, the bracket is supported between the bottom and the top of the rectangular roadway, no additional fixing part is needed, the upper side and the lower side of the rectangular rope net are respectively provided with a transverse pipe, and the two ends of the transverse pipe are respectively inserted into the C-shaped pipes on the two adjacent brackets, the integral installation is simple, the disassembly and the assembly are rapid, the rectangular rope net is made of aramid fiber, the material is fireproof, the static electricity is prevented, the corrosion is resistant, and the rectangular rope net.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the stand of the present invention;
FIG. 3 is a left side view of the stent of the present invention;
FIG. 4 is a schematic view of the construction of a flexible protective barrier of the present invention;
FIG. 5 is a schematic view of the internal structure of the cross tube of the present invention;
fig. 6 is a schematic view of the structure of the lower fixing pipe of the present invention.
Fig. 7 is a partially enlarged view of a portion a in fig. 4.
Fig. 8 is a partially enlarged view of fig. 4 at B.
Fig. 9 is a partial enlarged view of fig. 5 at C.
Fig. 10 is a partial enlarged view of fig. 1 at D.
Detailed Description
The embodiments of the present invention are further described below with reference to the drawings.
As shown in fig. 1-10, the safety protection method for the high gas area outside the coal mine tunnel sealing wall specifically comprises the following steps:
(1) processing and manufacturing a plurality of supports and a plurality of flexible protective fences;
(2) a first support is arranged on the leftmost side in a rectangular roadway on the outer side of the coal mine roadway sealing wall;
(3) a second support is arranged on the right side of the first support, and the distance between the first support and the second support is the width of the flexible protective fence;
(4) mounting a flexible protective fence between the first bracket and the second bracket;
(5) and (5) repeating the steps (3) and (4) for multiple times, and splicing a plurality of flexible protective fences until the rectangular roadway is plugged.
The support comprises two vertically arranged telescopic rod groups, the two telescopic rod groups have the same structure and are arranged up and down symmetrically, the upper telescopic rod group comprises an inserting rod 1 and a fixed pipe 2, the inserting rod 1 is vertically inserted in the fixed pipe 2, the upper end of the insertion rod 1 extends out of the upper end of the fixed pipe 2, a locking bolt 3 is installed on the upper side portion of the outer wall of the fixed pipe 2, the inner end of the locking bolt 3 extends into the fixed pipe 2 and is propped against the outer wall of the insertion rod 1, a fixed support 4 is fixedly installed at the upper end of the insertion rod 1, an anti-slip pad 5 is arranged on the upper surface of the fixed support 4, a C-shaped pipe 6 horizontally arranged along the left-right direction is fixedly connected between the front side portion of the lower surface of the fixed support 4 and the upper side portion of the front side of the outer wall of the insertion rod 1, the C-shaped pipe 6 is left-right through, the open side faces the front upper portion, and a plurality of hooks 7 are arranged;
hinge 8 is articulated between 2 upper end outer wall front side portions of the fixed pipe 2 lower extreme outer wall of upside and the fixed pipe of downside, and latch mechanism 9 is connected between 2 lower extreme outer wall rear side portions of the fixed pipe of upside and 2 upper end outer wall rear side portions of the fixed pipe of downside.
Fixed pipe 2 of downside includes two connecting pipes 10, two connecting pipes 10 correspond from top to bottom, connecting pipe 10 of upside downside outside circumference is equipped with first external screw thread, connecting pipe 10 of downside upside is equipped with the second external screw thread outside the circumference of upside, the turning of first external screw thread and second external screw thread is opposite, be connected with threaded sleeve 11 between two connecting pipes 10, the interior circumference of threaded sleeve 11 is equipped with the internal thread, connecting pipe 10 downside outside circumference threaded connection of upside is in threaded sleeve 11 and is gone up the lateral part, connecting pipe 10 upside outside circumference threaded connection is in threaded sleeve 11 and is gone up the lateral part, pass through between fixed pipe 2 lower extreme outer wall front side of upside and the connecting pipe 10 upper end outer wall front side of upside hinge 8 articulated, pass through between fixed pipe 2 lower extreme outer wall rear side of upside and the connecting pipe 10 upper end outer wall rear side of upside locking mechanism 9 connect.
The flexible protective fence comprises a rectangular rope net 12, transverse pipes 13 are arranged on the upper side and the lower side of the rectangular rope net 12, elastic ropes 14 are connected to the left side and the right side of the rectangular rope net 12, the two transverse pipes 13 are identical in structure and are symmetrically arranged up and down, the transverse pipes 13 are horizontally arranged along the left and right direction, a pipe joint 15 is integrally formed at the right end of each transverse pipe 13, the outer diameter of each pipe joint 15 is equal to the inner diameter of each transverse pipe 13, guide long holes (not shown) are formed in the pipe wall of the lower side of each transverse pipe 13 on the upper side along the left and right direction, a guide long rod 16 is fixedly arranged in each transverse pipe 13 on the upper side, the outer diameter of each guide long rod 16 is equal to the inner diameter of each transverse pipe 13, T-shaped grooves 17 with the left side, the right side and the lower side open and large upper and small upper sides are formed in the lower side of the lower side, a compression spring 19 embedded in the upper side part of the T-shaped groove 17 is connected between two adjacent T-shaped sliding blocks 18, and the upper side edge of the rectangular rope net 12 penetrates through the guide long hole to extend into the transverse pipe 13 and is fixedly connected with the bottom of each T-shaped sliding block 18;
a clamp 20 is fixedly connected to the front side portion of the outer side wall of the pipe joint 15, a clamping long hole 21 with openings in the left side, the front side and the rear side is formed in the front side portion of the left end pipe wall of the transverse pipe 13 in the left-right direction, and a clamping groove 22 with an opening in the upper side is formed in the right side portion of the bottom edge of the clamping long hole 21.
The rectangular rope net 12 is made of aramid fiber, and meshes of the rectangular rope net 12 are rhombic.
The step (2) is specifically as follows: pulling out the insertion rod 1 in the upper telescopic rod group of the first bracket to the longest pull-out position, screwing up the locking bolt 3 on the upper side to fix the insertion rod 1 in the upper telescopic rod group, contacting the fixed support 4 on the lower side and the anti-skid pad 5 on the lower side with the ground, lifting up the fixed tube 2 on the upper side to butt-joint the lower end of the fixed tube 2 on the upper side with the upper end of the fixed tube 2 on the lower side, fastening and fixedly connecting the fixed tube 2 on the upper side and the fixed tube 2 on the lower side through the corresponding locking mechanism 9, pulling out the insertion rod 1 in the lower telescopic rod group until the fixed support 4 on the upper side contacts with the top of the rectangular roadway, contacting the anti-skid pad 5 on the upper side with the top of the rectangular roadway, rotating the threaded sleeve 11 on the fixed tube 2 on the lower side to make the two connecting tubes 10 move back to back, increasing the distance, increasing the whole length of the fixed tube 2 on the lower, the anti-skid pad 5 on the upper side is tightly pressed with the top of the rectangular roadway, the first support is integrally supported tightly, and the first support is installed.
The step (3) is specifically as follows: pulling out the insertion rod 1 in the upper side telescopic rod group of the second bracket to the longest pull-out position, screwing up the locking bolt 3 on the upper side to fix the insertion rod 1 in the upper side telescopic rod group, placing the fixed support 4 on the lower side at the position which is away from the transverse pipe 13 on the right side of the first bracket, contacting the non-slip mat 5 on the lower side with the ground, lifting up the fixed pipe 2 on the upper side to butt joint the lower end of the fixed pipe 2 on the upper side with the upper end of the fixed pipe 2 on the lower side, fastening and fixedly connecting the fixed pipe 2 on the upper side with the fixed pipe 2 on the lower side through the corresponding locking mechanism 9, pulling out the insertion rod 1 in the lower side telescopic rod group until the fixed support 4 on the upper side contacts with the top of the rectangular roadway, contacting the non-slip mat 5 on the upper side with the top of the rectangular roadway, rotating the threaded sleeve 11 on the fixed pipe 2 on the lower side to make, the whole length increase of 2 fixed pipes of downside to make the slipmat 5 of downside compress tightly with ground, the slipmat 5 of upside compresses tightly with the top in rectangle tunnel, and the whole support of second support is tight, accomplishes the installation of second support.
The step (4) is specifically as follows: the left end of a transverse pipe 13 at the upper side of a rectangular rope net 12 is correspondingly inserted into the right port of a C-shaped pipe 6 at the upper side of a first support leftwards, then the transverse pipe 13 at the upper side of the rectangular rope net 12 is moved rightwards so that the right end of the transverse pipe 13 at the upper side of the rectangular rope net 12 is correspondingly inserted into the left port of a C-shaped pipe 6 at the upper side of a second support, then the transverse pipe 13 at the lower side of the rectangular rope net 12 is pulled downwards so that the rectangular rope net 12 is pulled downwards, then the left end of the transverse pipe 13 at the lower side of the rectangular rope net 12 is correspondingly inserted into the right port of the C-shaped pipe 6 at the lower side of the first support leftwards, then the transverse pipe 13 at the lower side of the rectangular rope net 12 is moved rightwards so that the right end of the transverse pipe 13 at the lower side of the rectangular rope net 12 is correspondingly inserted into the left port of the C-shaped pipe 6 at, thus, the installation of the flexible protective fence is completed; in the process of pulling the rectangular rope net 12 open, under the condition that the whole area of the rectangular rope net 12 is not changed, the left side and the right side of the rectangular rope net 12 are stretched together with the elastic ropes 14, the upper side and the lower side of the rectangular rope net 12 can be shortened, so that the upper side of the rectangular rope net 12 can drive each T-shaped sliding block 18 in the transverse pipe 13 on the upper side to move in the T-shaped groove 17, the distance between two adjacent T-shaped sliding blocks 18 is reduced, the two adjacent T-shaped sliding blocks 18 can extrude the compression spring 19 positioned between the two adjacent T-shaped sliding blocks 18, the lower side of the rectangular rope net 12 is the same as the upper side of the rectangular rope net 12, and then, when the flexible protective fence is disassembled and assembled, the left side and the right side of the rectangular rope net 12 can be restored to the initial length together with the elastic ropes 14, and the upper side and the lower side of the rectangular rope net 12 can be restored to the initial length with the.
The step (5) is specifically as follows: repeating the steps (2) and (3) for a plurality of times, and installing a plurality of supports, wherein when a second flexible protective fence is installed, the left end of the transverse pipe 13 on the upper side of the second rectangular rope net 12 is correspondingly inserted with the pipe joint 15 at the right end of the transverse pipe 13 on the upper side of the first rectangular rope net 12, the clamp 20 on the pipe joint 15 at the right end of the transverse pipe 13 on the upper side of the first rectangular rope net 12 is correspondingly clamped in the clamping long hole 21 at the left end of the transverse pipe 13 on the upper side of the second rectangular rope net 12 and is positioned in the clamping groove 22, the left end of the transverse pipe 13 on the lower side of the second rectangular rope net 12 is correspondingly inserted with the pipe joint 15 at the right end of the transverse pipe 13 on the lower side of the first rectangular rope net 12, the clamp 20 on the pipe joint 15 at the right end of the transverse pipe 13 on the lower side of the first rectangular rope net 12 is correspondingly clamped in the clamping long hole 21 at the left end of, so, can splice a plurality of flexible protective fence, until with the shutoff of rectangle tunnel.
The above embodiments are merely to illustrate rather than to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (9)
1. The safety protection method for the high gas area outside the coal mine tunnel sealing wall is characterized by comprising the following steps: the method specifically comprises the following steps:
(1) processing and manufacturing a plurality of supports and a plurality of flexible protective fences;
(2) a first support is arranged on the leftmost side in a rectangular roadway on the outer side of the coal mine roadway sealing wall;
(3) a second support is arranged on the right side of the first support, and the distance between the first support and the second support is the width of the flexible protective fence;
(4) mounting a flexible protective fence between the first bracket and the second bracket;
(5) and (5) repeating the steps (3) and (4) for multiple times, and splicing a plurality of flexible protective fences until the rectangular roadway is plugged.
2. The safety protection method for the high gas area outside the coal mine roadway sealing wall of the flexible protection fence according to claim 1, is characterized in that: the support comprises two vertically arranged telescopic rod groups, the two telescopic rod groups are identical in structure and are symmetrically arranged up and down, the upper telescopic rod group comprises an insertion rod and a fixed pipe, the insertion rod is vertically inserted into the fixed pipe, the upper end of the insertion rod extends out of the upper end of the fixed pipe, a locking bolt is mounted on the upper side of the outer wall of the fixed pipe, the inner end of the locking bolt extends into the fixed pipe and is pressed on the outer wall of the insertion rod, a fixed support is fixedly mounted at the upper end of the insertion rod, an anti-slip pad is arranged on the upper surface of the fixed support, a C-shaped pipe horizontally arranged in the left-right direction is fixedly connected between the front side of the lower surface of the fixed support and the upper side of the front side of the outer wall of the insertion rod, the left side and the right side of the C-shaped pipe face the left and the right side;
hinge before the fixed pipe lower extreme outer wall front side portion of upside and the fixed pipe upper end outer wall front side portion of downside, connect through latched device between the fixed pipe upper end outer wall rear side portion of upside and the fixed pipe upper end outer wall rear side portion of downside.
3. The safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 2, is characterized in that: the fixed pipe of downside includes two connecting pipes, two connecting pipes correspond from top to bottom, the outer circumference of the connecting pipe downside of upside is equipped with first external screw thread, the outer circumference of lateral part is equipped with the second external screw thread on the connecting pipe of downside, the soon of first external screw thread and second external screw thread is opposite, be connected with the thread bush between two connecting pipes, the interior circumference of thread bush is equipped with the internal thread, the outer circumference threaded connection of lateral part is gone up the lateral part in the thread bush in the connecting pipe downside of upside, the outer circumference threaded connection of lateral part is gone up at the thread bush downside in the connecting pipe of downside, pass through between the connecting pipe upper end outer wall front side part of fixed pipe lower extreme outer wall front side part of upside and upside the hinge articulated, pass through between the fixed pipe lower.
4. The safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 3, is characterized in that: the flexible protective fence comprises a rectangular rope net, wherein the upper side edge and the lower side edge of the rectangular rope net are respectively provided with a transverse pipe, the left side edge and the right side edge of the rectangular rope net are respectively connected with an elastic rope, the two transverse pipes are same in structure and are arranged in an up-and-down symmetrical manner, the transverse pipes are horizontally arranged along the left-and-right direction, the right ends of the transverse pipes are integrally formed with pipe joints, the outer diameters of the pipe joints are equal to the inner diameters of the transverse pipes, the lower side pipe walls of the transverse pipes on the upper side are provided with guide long holes along the left-and-right direction, guide long rods are fixedly arranged in the transverse pipes on the upper side, the outer diameters of the guide long rods are equal to the inner diameters of the transverse pipes, the lower side parts of the guide long rods are provided with T-shaped grooves which are opened and are large in the left-and-right direction, the T-shaped, the upper side of the rectangular rope net penetrates through the guide long hole to extend into the transverse pipe and is fixedly connected with the bottom of each T-shaped sliding block;
fixedly connected with bail on the lateral wall front side portion of coupling, left side, front side and the equal open joint slot hole in rear side are seted up along the left and right sides direction to the left end pipe wall front side portion of violently managing, and the base right part of joint slot hole is equipped with the open draw-in groove of upside.
5. The safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 4, is characterized in that: the rectangular rope net is made of aramid fiber, and meshes of the rectangular rope net are rhombic.
6. The installation method of the safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 5, is characterized in that: the step (2) is specifically as follows: pulling out the insertion rod in the upper telescopic rod group of the first bracket to the most 7-long pulling-out position, screwing up the locking bolt on the upper side to fix the insertion rod in the upper telescopic rod group, supporting the fixed support on the lower side, contacting the antiskid pad on the lower side with the ground, lifting up the fixed pipe on the upper side, butting the lower end of the fixed pipe on the upper side with the upper end of the fixed pipe on the lower side, fastening and fixedly connecting the fixed pipe on the upper side with the fixed pipe on the lower side through a corresponding fastening mechanism, pulling out the insertion rod in the lower telescopic rod group until the fixed support on the upper side contacts with the top of the rectangular roadway, contacting the antiskid pad on the upper side with the top of the rectangular roadway, rotating the threaded sleeve on the fixed pipe on the lower side to move the two connecting pipes away from each other, increasing the distance, increasing the overall length of the fixed pipe, thereby pressing the antiskid pad on the lower side with the ground, pressing the antiskid pad on, the first support is integrally supported tightly, and the first support is installed.
7. The installation method of the safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 6, is characterized in that: the step (3) is specifically as follows: pulling out the insertion rod in the upper telescopic rod group of the second bracket to the longest pull-out position, screwing up the locking bolt on the upper side to fix the insertion rod in the upper telescopic rod group, placing the lower fixed support in a supporting manner at the length position which is away from a transverse pipe on the right side of the first bracket, contacting the antiskid pad on the lower side with the ground, lifting up the upper fixed pipe to butt joint the lower end of the upper fixed pipe with the upper end of the lower fixed pipe, fastening and fixedly connecting the upper fixed pipe with the lower fixed pipe through a corresponding locking mechanism, pulling out the insertion rod in the lower telescopic rod group until the upper fixed support contacts with the top of the rectangular roadway, contacting the antiskid pad on the upper side with the top of the rectangular roadway, rotating the threaded sleeve on the lower fixed pipe to enable the two connecting pipes to move back to back and forth, increasing the distance, increasing the overall length of the lower fixed pipe, thereby compressing the antiskid pad on the lower side with the ground, the anti-slip mat of upside compresses tightly with the top in rectangle tunnel, and the whole support of second support is tight, accomplishes the installation of second support.
8. The installation method of the safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 7, is characterized in that: the step (4) is specifically as follows: the left end of the transverse pipe on the upper side of the rectangular rope net is correspondingly inserted into the right port of the C-shaped pipe on the upper side of the first bracket leftwards, then the right end of the transverse pipe at the upper side of the rectangular rope net is correspondingly inserted into the left port of the C-shaped pipe at the upper side of the second bracket by moving rightwards, then the transverse pipe at the lower side of the rectangular rope net is pulled downwards, so that the rectangular rope net is pulled downwards, the left end of the transverse pipe at the lower side of the rectangular rope net is correspondingly inserted into the right port of the C-shaped pipe at the lower side of the first bracket leftwards, then moves rightwards to ensure that the right end of the transverse pipe at the lower side of the rectangular rope net is correspondingly inserted into the left port of the C-shaped pipe at the lower side of the second bracket, finally, the elastic ropes on the left side of the rectangular rope net are fixedly connected to the hooks on the first support, the elastic ropes on the right side of the rectangular rope net are fixedly connected to the hooks on the second support, and the left side and the right side of the rectangular rope net are prevented from shaking, so that the flexible protective fence is installed; wherein, the in-process that the rectangle fag end was being pulled open, because under the unchangeable condition of the whole area of rectangle fag end, the left and right sides limit of rectangle fag end is elongated along with the elasticity rope together, then the last side and the lower side of rectangle fag end just can shorten, thereby the last side of rectangle fag end just can order about each T type slider of violently intraductal each piece of T type slider of upside and remove in T type groove and the distance of two adjacent T type sliders reduces, two adjacent T type sliders just can extrude the compression spring that is located in the middle of them, the lower side of rectangle fag end is with the last side of rectangle fag end, so, when the flexible fence of dismouting protection, the left and right sides limit of rectangle fag end resumes to initial length along with the elasticity rope together, the upper and lower both sides limit of rectangle fag end also can resume to initial length under the elasticity of compression spring along with.
9. The installation method of the safety protection method for the high gas area outside the coal mine tunnel sealing wall according to claim 8, is characterized in that: the step (5) is specifically as follows: repeating the steps (3) and (4) for a plurality of times, and installing a plurality of supports, wherein when installing a second flexible protective fence, the left end of the transverse pipe on the upper side of the second rectangular rope net is correspondingly spliced with the pipe joint at the right end of the transverse pipe on the upper side of the first rectangular rope net, the staple on the pipe joint at the right end of the transverse pipe on the upper side of the first rectangular rope net is correspondingly clamped in the clamping slot hole at the left end of the transverse pipe on the upper side of the second rectangular rope net and is positioned in the clamping slot, the left end of the transverse pipe on the lower side of the second rectangular rope net is correspondingly spliced with the pipe joint at the right end of the transverse pipe on the lower side of the first rectangular rope net, the staple on the pipe joint at the right end of the transverse pipe on the lower side of the first rectangular rope net is correspondingly clamped in the clamping slot hole at the left end of the transverse pipe on, until the rectangular roadway is plugged.
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| CN112627891B (en) | 2023-03-10 |
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