CN216206155U - Mining multi-point optical fiber roof monitoring device - Google Patents
Mining multi-point optical fiber roof monitoring device Download PDFInfo
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- CN216206155U CN216206155U CN202122985761.5U CN202122985761U CN216206155U CN 216206155 U CN216206155 U CN 216206155U CN 202122985761 U CN202122985761 U CN 202122985761U CN 216206155 U CN216206155 U CN 216206155U
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Abstract
The utility model provides a mining multiple spot position optic fibre roof monitoring devices for the anchoring monitors roof absciss layer phenomenon in tunnel roof drilling, includes device body, fixed pipe and isolation guide rail, fixed pipe sets up in device body top perpendicularly, stretch out several anchor cable in the device body, the anchor cable passes fixed pipe and stretches out from fixed pipe upper end, the upper end of anchor cable is connected with the anchoring claw, the anchoring claw anchoring is in drilling, it sets up in fixed pipe to keep apart the guide rail, the cross-sectional shape of keeping apart the guide rail includes radial star, it includes several isolation blades to keep apart the guide rail, forms the threading district between the adjacent isolation blade, the quantity in threading district is corresponding with the quantity of anchor cable. The space in the fixed pipe is separated into a plurality of threading areas by the isolation guide rail, and each anchoring steel cable works in an independent threading area without interfering and winding, so that the optical fiber top plate monitoring device has the capacity of multi-point position measurement.
Description
Technical Field
The utility model relates to the technical field of coal mine safety detection, in particular to a mining multi-point optical fiber roof monitoring device.
Background
The roof strata of a coal mine are generally in a typical layered structure, and the separation between the roof strata, namely the displacement between different strata, often indicates the beginning of roof instability damage, and the separation is one of main precursor signals of roof collapse of a roadway. And the mode of preventing the roof separation accident is to perform monitoring and early warning through optical fiber roof separation monitoring equipment besides anchor support.
The optical fiber roof separation monitoring equipment used in the market at present mainly extends an anchor claw connected with a steel wire rope into a drill hole of a roof, anchors the anchor claw in rock strata at different depths, and predicts roof separation accidents by monitoring displacement between different rock strata.
Generally, the more flukes are anchored in a drill hole, the more anchoring points are anchored, the more rock strata are monitored, the more accurate the prediction of the top plate separation accident is, but after the existing optical fiber top plate separation monitoring equipment has more flukes, the steel wire ropes connected with the flukes can interfere with each other, so that the flukes are basically only provided with a shallow base point and a deep base point, and the prediction precision is greatly insufficient.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a mining multi-point optical fiber roof monitoring device, wherein at least two other anchoring base points are added on the basis of the original shallow base point and the original deep base point, and the flukes anchored at the anchoring base points with different depths are connected with steel wire ropes and isolated by using isolation guide rails.
The technical scheme of the utility model is as follows:
the utility model provides a mining multiple spot position optic fibre roof monitoring devices for the anchoring monitors roof absciss layer phenomenon in tunnel roof drilling, includes device body, fixed pipe and isolation guide rail, fixed pipe sets up in device body top perpendicularly, stretch out several anchor cable in the device body, the anchor cable passes fixed pipe and stretches out from fixed pipe upper end, the upper end of anchor cable is connected with the anchoring claw, the anchoring claw anchoring is in drilling, it sets up in fixed pipe to keep apart the guide rail, the cross-sectional shape of keeping apart the guide rail includes radial star, it includes several isolation blades to keep apart the guide rail, forms the threading district between the adjacent isolation blade, the quantity in threading district is corresponding with the quantity of anchor cable. The space in the fixed pipe is separated into a plurality of threading areas by the isolation guide rail, and each anchoring steel cable works in an independent threading area without interfering and winding, so that the optical fiber top plate monitoring device has the capacity of multi-point position measurement.
According to the mining multi-point optical fiber roof monitoring device, the lower connecting seat protruding upwards is arranged at the position where the upper surface of the device body is connected with the fixed pipe, the diameter of the lower connecting seat is consistent with that of the inner ring of the fixed pipe, and the lower connecting seat is connected with the fixed pipe through the bolt.
Furthermore, be provided with the first spacing groove of shape and isolation guide rail cross-sectional shape matched with on the connecting seat down, the lower extreme of keeping apart the guide rail inserts first spacing groove, accomplishes the rigidity of keeping apart the guide rail lower extreme, be provided with the first through wires hole that the several runs through from top to bottom on the connecting seat down, the quantity of first through wires hole is corresponding with the quantity of anchoring cable wire, and the anchoring cable wire that stretches out from the device body passes lower connecting seat from first through wires hole.
According to the mining multi-point optical fiber roof monitoring device, a plurality of elastic pawls which are arranged up and down are arranged on the isolation guide rail and are rotatably connected with the isolation guide rail, each elastic pawl is provided with a thorn extending downwards, and the fixing pipe is provided with penetrating puncture holes at the opposite positions of the thorns. When the fixed pipe is inserted into the drilled hole of the top plate for fixing, the spines on two sides of the elastic pawl penetrate through the puncture holes of the fixed pipe to pierce into the inner wall of the drilled hole, the fixed pipe is fixed in the drilled hole of the top plate, the spines can also fix the position of the isolation guide rail in the fixed pipe after penetrating through the fixed pipe, and the isolation guide rail is prevented from rotating in the fixed pipe and touching the anchoring steel cable, so that the optical fiber top plate monitoring device is prevented from being mistakenly reported.
Further, the angle between the two lateral barbs of each elastic pawl is not more than 90 degrees, and if the angle between the two lateral barbs is more than 90 degrees, the strength of the elastic pawl is affected, and the barbs are easily bent upwards, so that the anchoring failure is caused.
Furthermore, the adjacent elastic pawls are turned for 360 degrees and divided by the number of the isolation blades, so that each elastic pawl is anchored on the inner wall of the drill hole to be stable and balanced as much as possible, the fixed pipe is prevented from shaking in the drill hole,
according to the mining multi-point optical fiber top plate monitoring device, the inner wall of the fixed pipe is provided with the guide rail grooves, and the width number of the guide rail grooves is matched with that of the isolating blades. The isolation blade of the isolation guide rail is inserted into the guide rail groove, the relative position of the isolation blade and the insertion guide rail groove is fixed, and the isolation blade and the fixed pipe are prevented from shaking relatively.
Further, the upper end of fixed pipe is provided with the closing cap, the tip diameter is unanimous with fixed pipe inner circle under the upper closing cap, and the tip diameter is unanimous with fixed tub of outer lane, the upper end opening of fixed pipe can be sealed to the upper closing cap, prevents that the rock piece in the drilling from falling into fixed pipe, the upper closing cap lower extreme sets up second spacing groove down again, the shape of second spacing groove also cooperatees with the cross-sectional shape of isolation guide rail, the upper closing cap is provided with the second through wires hole that runs through from top to bottom of several, the second through wires hole is also corresponding with the quantity of anchoring cable wire, the upper closing cap lower extreme also passes through bolted connection with fixed pipe.
Compared with the prior art, the utility model has the advantages that:
according to the mining multi-point optical fiber top plate monitoring device, the isolating guide rail is arranged in the fixing pipe of the optical fiber top plate monitoring device, the isolating guide rail isolates the anchoring steel cables in the fixing pipe into independent spaces to avoid mutual touch and winding, the problem of the multi-point optical fiber top plate monitoring device is solved by adopting a simple low-cost mode, and the isolating guide rail is integrated with a fixing function, so that the optical fiber top plate monitoring device can be more fully fixed in a top plate drilling hole.
Drawings
The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.
In the drawings:
fig. 1 is a schematic structural view of a mining multi-point optical fiber roof monitoring device in embodiment 1;
FIG. 2 is a schematic view showing the structure of an isolation guide in embodiment 1;
FIG. 3 is a plan view of an isolation guide in embodiment 1;
FIG. 4 is a top view of the lower connecting seat in the embodiment 1;
FIG. 5 is a top view of the upper closure in example 1;
FIG. 6 is a side view of the upper cap of example 1;
FIG. 7 is a multi-point optical fiber roof monitoring apparatus for mining in embodiment 1;
1. a device body; 2. a fixed tube; 21. a guide rail groove; 3. isolating the guide rail; 31. an elastic pawl; 32. thorn; 34. isolating the blade; 35. a threading area; 4. a lower connecting seat; 41. a first limit groove; 42. a first threading hole; 5. an upper sealing cover; 51. a second limit groove; 52. a second threading hole; 6. anchoring a steel cord; 7. and anchoring the claws.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It should be noted that these embodiments are provided so that this disclosure can be more completely understood and fully conveyed to those skilled in the art, and the present disclosure may be implemented in various forms without being limited to the embodiments set forth herein.
The directions "front and back", "left and right", etc. mentioned in the present invention are only used to express the relative positional relationship, and are not restricted by any specific directional references in practical application.
Example 1
Referring to fig. 1 to 7, a mining multi-point optical fiber roof monitoring device for anchoring in a tunnel roof borehole to monitor a roof separation phenomenon, includes a device body 1, a fixed pipe 2 and an isolation guide rail 3, the fixed pipe 2 is vertically disposed above the device body 1, 4 anchoring steel cables 6 extend from the device body 1 in this embodiment, the anchoring steel cables 6 extend from the upper end of the fixed pipe 2 through the fixed pipe 2, an anchoring claw 7 is connected to the upper end of the anchoring steel cables 6, the anchoring claw 7 is anchored in the borehole, the isolation guide rail 3 is disposed in the fixed pipe 2, the cross section of the isolation guide rail 3 is in a radial star shape, the isolation guide rail 3 includes 4 isolation blades 37, each isolation blade 37 is spaced by 90 degrees, a threading area 35 is formed between adjacent isolation blades 37, the number of the threading areas 35 corresponds to the number of the anchoring steel cables 6, the separation blades 37 separate the space in the co-fixed pipe 2 into 4 independent sector-shaped threading areas 35, and each anchoring steel cable 6 is located in an independent threading area 35 and cannot interfere with or intertwine with each other. The space in the fixed pipe 2 is isolated into 4 threading areas 35 by the isolation guide rail 3, and each anchoring steel cable 6 works in the independent threading area 35 without interfering and winding with each other, so that the optical fiber top plate monitoring device has the capability of multi-point position measurement.
Referring to fig. 2, a lower connecting seat 4 protruding upwards is arranged at a position where the upper surface of the device body 1 is connected with the fixed tube 2, the diameter of the lower connecting seat 4 is consistent with the diameter of the inner ring of the fixed tube 2, a threaded hole is arranged at the edge of the lower connecting seat 4, and the fixed tube 2 is connected with the lower connecting seat 4 through a bolt screwed in the opposite position of the threaded hole.
Further, be provided with the first spacing groove 41 of shape and isolation guide rail 3 cross-sectional shape matched with on the connecting seat 4 down, the lower extreme of isolation guide rail 3 inserts first spacing groove 41, accomplishes the rigidity of isolation guide rail 3 lower extreme, be provided with 4 first through wires holes 42 that run through from top to bottom on the connecting seat 4 down, the quantity of first through wires hole 42 corresponds with the quantity of anchoring cable 6, and anchoring cable 6 that stretches out from device body 1 passes connecting seat 4 down from first through wires hole 42.
Furthermore, 4 elastic pawls 31 arranged up and down are arranged on the isolation guide rail 3, the elastic pawls 31 are rotatably connected with the isolation guide rail 3, the elastic pawls 31 are provided with thorns 32 extending downwards, and the fixing tube 2 is provided with penetrating puncture holes at positions opposite to the thorns 32. When the fixing tube 2 is inserted into the drilled hole of the top plate for fixing, the spines 32 on two sides of the elastic pawl 31 penetrate through the puncture holes of the fixing tube 2 to pierce into the inner wall of the drilled hole, the fixing tube 2 is fixed in the drilled hole of the top plate, the position of the isolation guide rail 3 in the fixing tube 2 can be fixed after the spines 32 penetrate through the fixing tube 2, and the isolation guide rail 3 is prevented from rotating in the fixing tube 2 to touch the anchoring steel cable 6, so that the optical fiber top plate monitoring device can be prevented from being mistakenly reported.
Referring to fig. 7, the angle between the two lateral barbs 32 of each resilient pawl 31 is 90 degrees, and if the angle between the two lateral barbs 32 is greater than 90 degrees, the strength of the resilient pawl 31 is affected, and the barbs 32 are easily bent upwards, resulting in failure of anchoring.
Furthermore, the number of the isolation blades 37 is divided by 360 degrees of the turning of the adjacent elastic pawls 31, and the isolation guide rail 3 of the embodiment is provided with 4 isolation blades 37, namely, the adjacent elastic pawls 31 are turned by 90 degrees, so that each elastic pawl 31 is anchored on the inner wall of the drill hole to be as stable and balanced as possible, the fixed pipe 2 is prevented from shaking in the drill hole,
referring to fig. 3, the inner wall of the fixed pipe 2 of this embodiment is provided with 4 guide rail grooves 21, and the number of the widths of the guide rail grooves 21 is matched with the number of the widths of the separation blades 37. The isolation blade 37 of the isolation guide rail 3 is inserted into the guide rail groove 21, and the relative position of the isolation blade 37 and the insertion guide rail groove 21 is fixed, so that the isolation blade 37 and the fixed pipe 2 are prevented from shaking relatively. When isolation guide rail 3 assembles with fixed pipe 2, need follow the opening of fixed pipe 2 lower extreme and insert, isolation guide rail 3's isolation blade 37 inserts corresponding guide rail groove 21, from up pushing down, wear out in the puncture hole that corresponds on the fixed pipe 2 from the thorn 32 of elasticity pawl 31 both sides.
Further, the upper end of the fixed pipe 2 is provided with an upper sealing cover 5, the diameter of the lower end part of the upper sealing cover 5 is consistent with that of the inner ring of the fixed pipe 2, the diameter of the upper end part of the upper sealing cover 5 is consistent with that of the outer ring of the fixed pipe 2, the upper sealing cover 5 can seal the upper end opening of the fixed pipe 2 to prevent rock debris in a drill hole from falling into the fixed pipe 2, the lower end of the upper sealing cover 5 is provided with a second limiting groove 51 facing downwards, the shape of the second limiting groove 51 is also matched with that of the cross section of the isolation guide rail 3 and is in a cross star shape, the upper sealing cover 5 is provided with 4 second threading holes 52 penetrating up and down, the second threading holes 52 are also corresponding to the number of the anchoring steel cables 6, the positions of the second threading holes are also opposite to the first threading holes 42 on the lower connecting seat 4, the lower end edge of the upper sealing cover 5 is also provided with a threaded hole, the fixed pipe 2 is connected with the lower end of the upper sealing cover 5 through a bolt screwed in the opposite positions of the threaded hole, the connection of the upper cap 5 with the fixed tube 2 is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or additions or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A mining multi-point optical fiber roof monitoring device is used for anchoring and monitoring roof separation in a tunnel roof drill hole and is characterized by comprising a device body (1), a fixed pipe (2) and an isolation guide rail (3), wherein the fixed pipe (2) is vertically arranged above the device body (1), a plurality of anchoring steel cables (6) extend out of the device body (1), the anchoring steel cables (6) penetrate through the fixed pipe (2) and extend out of the upper end of the fixed pipe (2), the upper end of each anchoring steel cable (6) is connected with an anchoring claw (7), the anchoring claws (7) are anchored in the drill hole, the isolation guide rail (3) is arranged in the fixed pipe (2), the cross section of the isolation guide rail (3) comprises a radial star shape, the isolation guide rail (3) comprises a plurality of isolation blades (34), and a wire passing area (35) is formed between every two adjacent isolation blades (34), the number of threading areas (35) corresponds to the number of anchoring cables (6).
2. The mining multi-point optical fiber roof monitoring device according to claim 1, wherein a lower connecting seat (4) protruding upwards is arranged at a position where the upper surface of the device body (1) is connected with the fixed pipe (2), and the diameter of the lower connecting seat (4) is consistent with the diameter of an inner ring of the fixed pipe (2).
3. The mining multi-point optical fiber roof monitoring device according to claim 2, wherein the lower connecting seat (4) is provided with a first limiting groove (41) with a shape matched with the cross-sectional shape of the isolation guide rail (3), the lower end of the isolation guide rail (3) is inserted into the first limiting groove (41) to complete the position fixing of the lower end of the isolation guide rail (3), the lower connecting seat (4) is provided with a plurality of first threading holes (42) which penetrate through up and down, and the number of the first threading holes (42) corresponds to the number of the anchoring steel cables (6).
4. The mining multi-point optical fiber roof monitoring device according to claim 1, wherein a plurality of elastic pawls (31) arranged up and down are arranged on the isolation guide rail (3), the elastic pawls (31) are rotatably connected with the isolation guide rail (3), each elastic pawl (31) is provided with a thorn (32) extending downwards, and the fixing tube (2) is provided with a penetrating puncture hole at a position opposite to the thorn (32).
5. The mining multi-point optical fiber roof monitoring device according to claim 4, characterized in that the angle between the thorns (32) on both sides of each elastic pawl (31) is not more than 90 degrees.
6. A mining multi-point optical fiber roof monitoring device according to claim 5, characterized in that adjacent said elastic pawls (31) are turned 360 degrees divided by the number of spacer blades (34).
7. The mining multi-point optical fiber roof monitoring device according to claim 1, characterized in that a plurality of guide rail grooves (21) are arranged on the inner wall of the fixed pipe (2), and the width number of the guide rail grooves (21) is matched with the width number of the isolating blades (34).
8. The mining multi-point optical fiber roof monitoring device according to claim 7, wherein an upper sealing cover (5) is arranged at the upper end of the fixed pipe (2), the diameter of the lower end part of the upper sealing cover (5) is consistent with that of the inner ring of the fixed pipe (2), the diameter of the upper end part of the upper sealing cover is consistent with that of the outer ring of the fixed pipe (2), a second limiting groove (51) which faces downwards is arranged at the lower end of the upper sealing cover (5), the shape of the second limiting groove (51) is matched with that of the cross section of the isolation guide rail (3), a plurality of second threading holes (52) which penetrate through the upper sealing cover (5) and the lower sealing cover are arranged, and the number of the second threading holes (52) is corresponding to that of the anchoring steel cables (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122985761.5U CN216206155U (en) | 2021-11-30 | 2021-11-30 | Mining multi-point optical fiber roof monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122985761.5U CN216206155U (en) | 2021-11-30 | 2021-11-30 | Mining multi-point optical fiber roof monitoring device |
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| CN216206155U true CN216206155U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118030189A (en) * | 2024-03-19 | 2024-05-14 | 中矿佳越科技(北京)有限公司 | Method and system for monitoring natural ignition beam tube of coal mine |
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2021
- 2021-11-30 CN CN202122985761.5U patent/CN216206155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118030189A (en) * | 2024-03-19 | 2024-05-14 | 中矿佳越科技(北京)有限公司 | Method and system for monitoring natural ignition beam tube of coal mine |
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