CN215676882U - Optical fiber top plate separation layer sensor - Google Patents
Optical fiber top plate separation layer sensor Download PDFInfo
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- CN215676882U CN215676882U CN202122210043.0U CN202122210043U CN215676882U CN 215676882 U CN215676882 U CN 215676882U CN 202122210043 U CN202122210043 U CN 202122210043U CN 215676882 U CN215676882 U CN 215676882U
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Abstract
An optical fiber roof separation layer sensor is arranged in a drill hole of a tunnel roof and used for detecting roof separation layer phenomena, and comprises a sensor body, a mounting pipe and an anchor point rope, wherein an anchoring unit is arranged in the mounting pipe and comprises an anchoring thorn, a plurality of symmetrically arranged puncture holes are formed in the mounting pipe, the outer end of the anchoring thorn penetrates into the hole wall of the drill hole of the tunnel roof to anchor the mounting pipe in the drill hole, so that the whole optical fiber roof separation layer sensor is fixed, a reset rope is arranged in the mounting pipe, the top end of the reset rope is connected with a reset ratchet wheel, the reset ratchet wheel is rotatably connected with the inner wall of the mounting pipe, the inner end of the anchoring thorn is connected with the reset rope, the tail end of the reset rope penetrates through the sensor body and extends out of the bottom surface of the sensor body, the reset rope is pulled downwards, and the anchoring thorn extends out, inserted into the inner wall of the roof drill hole.
Description
Technical Field
The utility model relates to the technical field of coal mine safety detection, in particular to an optical fiber roof separation layer sensor.
Background
The optical fiber roof separation sensor is a special monitoring instrument for detecting roof rock stratum movement. The anchor rope is anchored in the rock stratums of the shallow base layer and the deep base layer through the anchor rope, displacement conditions of the shallow base layer and the deep base layer rock stratums are respectively displayed, and the displacement conditions are transmitted to an optical fiber top plate dynamic monitoring host outside a mine through optical fibers to be analyzed, displayed and recorded.
The fiber roof separation sensor needs to drill a hole on a roadway roof when being installed and used, the head end of an anchor point rope of the fiber roof separation sensor is anchored in rock strata of a shallow base layer and a deep base layer, then an installation pipe is inserted into the drilled hole of the roof, and then the body of the fiber roof separation sensor is fixed. The optical fiber roof separation layer sensor on the market at present does not have general fixed means, and the means diverse of fixed optical fiber roof separation layer sensor body and comparatively complicated are inconvenient to be under construction in the tunnel.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an optical fiber top plate delamination sensor, wherein movable anchoring spines are arranged in a mounting pipe, the anchoring spines penetrate into the wall of a drill hole to fix an optical fiber top plate delamination sensor body, the inner ends of all the anchoring spines are connected to a reset rope, the anchoring spines can extend out or retract by pulling the reset rope, and the optical fiber top plate delamination sensor is convenient and quick to use.
The technical scheme of the utility model is as follows:
an optical fiber roof separation layer sensor is arranged in a drill hole of a tunnel roof and used for detecting roof separation layer phenomena, and comprises a sensor body, a mounting pipe and an anchor point rope, wherein the sensor body is internally provided with the optical fiber sensor, the mounting pipe is vertically arranged on the sensor body, the upper end of the anchor point rope is anchored in the drill hole of the tunnel roof, the other end of the anchor point rope penetrates through the mounting pipe and is linked with the optical fiber sensor in the sensor body, the mounting pipe is internally provided with an anchoring unit, the anchoring unit comprises anchoring spines, the mounting pipe is provided with a plurality of symmetrically arranged puncture holes, the outer ends of the anchoring spines are downwards inclined and inserted into the puncture holes, the outer ends of the anchoring spines penetrate into the hole wall of the drill hole of the tunnel roof and anchor the mounting pipe in the drill hole, so as to fix the whole optical fiber roof separation layer sensor, the mounting pipe is internally provided with a reset rope, and the top end of the reset rope is connected with a reset ratchet wheel, the reset ratchet wheel is rotatably connected with the inner wall of the mounting tube, the inner end of the anchoring thorn is connected with the reset rope, the tail end of the reset rope penetrates through the sensor body to extend out of the bottom surface of the sensor body, the reset rope is pulled downwards, and the anchoring thorn extends outwards and is inserted into the inner wall of the drilled hole of the top plate.
Preferably, a scroll spring is arranged inside the reset ratchet wheel, when the reset rope is pulled out downwards, the scroll spring can be compressed to generate a force opposite to the movement direction of the reset rope, when the reset rope is loosened, the reset ratchet wheel can pull the reset rope to move upwards and wind the reset ratchet wheel under the driving of the scroll spring, and meanwhile, the anchoring thorn can be retracted into the mounting pipe to release the fixation of the mounting pipe in the top plate drilling hole.
According to the optical fiber top plate separation layer sensor, the tail end of the reset rope is connected with the limiting unit, the limiting unit comprises the limiting rod, and the limiting rod is perpendicular to the reset rope for connection.
Furthermore, the bottom surface of the sensor body is provided with a limiting hole at a position contacting with the limiting rod, a limiting groove is arranged on the outer side of the bottom surface of the sensor body and perpendicular to the limiting hole, the shapes of the limiting hole and the limiting groove are the same as those of the limiting rod, the limiting rod can penetrate through the limiting hole, after penetrating through the limiting hole, the limiting rod rotates by 90 degrees, the limiting rod is plugged into the limiting groove, the limiting rod can be prevented from penetrating through the limiting hole again, and the anchoring thorn can be prevented from being withdrawn, so that the anchoring of the optical fiber top plate separation layer sensor is disabled.
Further, the below of gag lever post is connected with spacing piece through the rope that restores to the throne, the area of spacing piece is greater than the area in spacing hole, spacing piece can prevent that the rope that restores to the throne from excessively being withdrawed and leading to the unable continuation of anchor unit to use, the below of spacing piece is provided with the ring perpendicularly, the diameter of ring is not less than the diameter of adult forefinger, and the staff passes the forefinger and can stimulate or rotate the rope that restores to the throne, and easy operation is swift.
Furthermore, the length of the reset rope between the limiting sheet and the limiting rod is not more than that of one anchoring thorn, and if the length of the reset rope between the limiting sheet and the limiting rod is too short, the anchoring thorn cannot be completely withdrawn into the installation tube, so that the anchoring release of the optical fiber top plate separation layer sensor is influenced.
According to the optical fiber top plate separation layer sensor, the guide plug is arranged between the puncture hole and the anchoring thorn, the thorn hole is formed in the middle of the guide plug and can accommodate the anchoring thorn to penetrate through, the guide pipe which inclines upwards is arranged at the inner end of the guide plug, the angle between the guide pipe and the inner wall of the installation pipe is not smaller than 32 degrees, the guide plug is made of rubber and can control the angle of the anchoring thorn, and the anchoring thorn is prevented from being incapable of taking effect due to the fact that the pricking angle is not opposite.
Furthermore, the outside of the guide plug is provided with a closed ring, the diameter of the closed ring is larger than that of the puncture hole, and the closed ring can prevent sundries or dust from entering the installation pipe from the puncture hole.
Furthermore, a circle of sealing ring is arranged behind the sealing ring and surrounds the guide pipe, a sealing groove is formed between the sealing ring and the sealing ring, and the width of the sealing groove is not larger than the wall thickness of the installation pipe.
Compared with the prior art, the utility model has the advantages that:
the utility model relates to an optical fiber top plate delamination sensor, wherein a plurality of anchoring thorns extend out of a mounting pipe of the optical fiber top plate delamination sensor and penetrate into the hole wall of a drilled hole of a top plate so as to fixedly mount a sensor body. All the anchoring spines are controlled by a reset rope arranged in the installation pipe, the anchoring spines can be controlled to extend out by pulling the reset rope downwards, and the anchoring spines can be retracted into the installation pipe to reset by loosening.
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 view of an optical fiber roof delamination sensor according to example 1;
FIG. 2 is a plan view of the installation tube in example 1;
FIG. 3 is a schematic view of the installation of the pipe internal anchoring unit in example 1;
FIG. 4 is a schematic structural view of a position limiting unit in embodiment 1;
FIG. 5 is a schematic view of the bottom surface of the sensor body in example 1;
the components represented by the reference numerals in the figures are:
1. the sensor comprises a sensor body, 11, a limiting hole, 12, a limiting groove, 2, an installation pipe, 21, a puncture hole, 3, an anchor point rope, 4, an anchor unit, 41, an anchor thorn, 42, a reset ratchet wheel, 43, a reset rope, 44, a guide plug, 441, a thorn hole, 442, a guide pipe, 443, a closed ring, 444, a sealing ring, 445, a sealing groove, 5, a limiting unit, 51, a limiting rod, 52, a limiting sheet, 53 and a finger ring.
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. 1-5, an optical fiber roof separation layer sensor, disposed in a borehole of a tunnel roof, for detecting a roof separation layer phenomenon, includes a sensor body 1, a mounting tube 2 and an anchor rope 3, the optical fiber sensor is disposed in the sensor body 1, the mounting tube 2 is vertically disposed on the sensor body 1, an upper end of the anchor rope 3 is anchored in the borehole of the tunnel roof, and the other end of the anchor rope passes through the mounting tube 2 to be linked with the optical fiber sensor in the sensor body 1, an anchoring unit 4 is disposed in the mounting tube 2, the anchoring unit 4 includes 8 anchoring thorns 41, 8 symmetrically disposed puncture holes 21 are disposed on the mounting tube 2, an outer end of the anchoring thorns 41 is inserted into the downward-inclined puncture hole 21, in this embodiment, the anchoring thorns 41 are the same group of two symmetrical anchoring thorns 41, and the anchoring thorns 41 of an upper and lower adjacent group are deflected by 90 degrees, therefore, a more comprehensive and firmer anchoring effect is obtained, the outer end of the anchoring thorn 41 penetrates into the wall of the drilled hole of the roadway roof, the installation pipe 2 is anchored in the drilled hole, the whole optical fiber roof separation sensor is further fixed, a reset rope 43 is arranged in the installation pipe 2, the top end of the reset rope 43 is connected with a reset ratchet wheel 42, the reset ratchet wheel 42 is rotatably connected with the inner wall of the installation pipe 2, the inner end of the anchoring thorn 41 is connected with the reset rope 43, the tail end of the reset rope 43 penetrates through the sensor body 1 to extend out of the bottom surface of the sensor body 1, the reset rope 43 is pulled downwards, the anchoring thorn 41 extends outwards and is inserted into the inner wall of the drilled hole of the roof.
Preferably, a spiral spring is arranged inside the reset ratchet wheel 42, when the reset rope 43 is pulled out downwards, the spiral spring is compressed to generate a force opposite to the movement direction of the reset rope 43, when the reset rope 43 is loosened, the reset ratchet wheel 42 is driven by the spiral spring to pull the reset rope 43 to move upwards and wind on the reset ratchet wheel 42, and meanwhile, the anchoring thorn 41 is retracted into the mounting tube 2 to release the fixing of the mounting tube 2 in the top plate drilling hole.
Referring to fig. 4, the end of the restoring rope 43 is connected to a limiting unit 5, and the limiting unit 5 comprises a limiting rod 51, and the limiting rod 51 is connected perpendicular to the restoring rope 43.
Referring to fig. 5, a position of the bottom surface of the sensor body 1, which is in contact with the limiting rod 51, is provided with a limiting hole 11, a limiting groove 12 is provided on the outer side of the bottom surface of the sensor body 1, which is perpendicular to the limiting hole 11, the shapes of the limiting hole 11 and the limiting groove 12 are the same as the shape of the limiting rod 51, the limiting rod 51 can pass through the limiting hole 11, after passing through the limiting hole 11, the limiting rod 51 rotates 90 degrees, the limiting rod 51 is plugged into the limiting groove 12, and the limiting rod 51 can be prevented from passing through the limiting hole 11 again, so that the anchoring thorn 41 is withdrawn, and the anchoring of the optical fiber top plate separation layer sensor fails.
Further, the lower part of the limiting rod 51 is connected with a limiting piece 52 through a reset rope 43, the area of the limiting piece 52 is larger than that of the limiting hole 11, the limiting piece 52 can prevent the reset rope 43 from being excessively withdrawn to cause the anchoring unit 4 to be incapable of being continuously used, a ring 53 is vertically arranged below the limiting piece 52, the diameter of the ring 53 is not smaller than that of the index finger of an adult, a worker can pull or rotate the reset rope 43 by passing the index finger through the ring 53, and the operation is simple and rapid.
Further, the length of the restoring rope 43 between the limiting sheet 52 and the limiting rod 51 is not greater than the length of one anchoring thorn 41, and if the length of the restoring rope 43 between the limiting sheet 52 and the limiting rod 51 is too short, the anchoring thorn 41 cannot be completely retracted into the installation tube 2, which affects the anchoring release of the optical fiber roof separation sensor.
Referring to fig. 3, a guide plug 44 is disposed between the puncture hole 21 and the anchor thorn 41, a thorn hole 441 is disposed in the middle of the guide plug 44 and can accommodate the anchor thorn 41 to pass through, a guide tube 442 inclined upward is disposed at an inner end of the guide plug 44, an angle between the guide tube 442 and an inner wall of the mounting tube 2 is 35 degrees, the guide plug 44 is made of rubber, and the guide plug 44 can control a pricking angle of the anchor thorn 41 and prevent the anchor thorn 41 from being ineffective due to improper pricking angle. The guide plug 44 can also reduce friction between the anchoring barbs 41 and the wall of the installation tube 2, thereby reducing friction loss.
Further, a sealing ring 443 is disposed outside the guide plug 44, the diameter of the sealing ring 443 is larger than that of the puncture hole 21, and the sealing ring 443 is disposed to prevent foreign materials or dust from entering the installation tube 2 through the puncture hole 21.
Furthermore, a ring of sealing rings 444 is arranged around the guide tube 442 behind the sealing ring 443, a sealing groove 445 is formed between the sealing rings 444 and the sealing ring 443, and the width of the sealing groove 445 is not greater than the wall thickness of the mounting tube 2.
The optical fiber top plate delamination sensor comprises the following specific use steps:
1) drilling a hole in a top plate of the roadway, wherein the diameter of the drilled hole is larger than that of the installation pipe 2 of the optical fiber top plate separation layer sensor in the embodiment of the installation pipe 2;
2) anchoring the anchor point rope 3 of the optical fiber roof separation sensor in the embodiment in rock strata at different depths in the borehole;
3) inserting the installation tube 2 of the optical fiber top plate delamination sensor in the embodiment into a drill hole of a top plate;
4) pulling the ring 53 of the limiting unit 5 below the sensor body 1 by using the index finger;
5) the ring 53 pulls the reset rope 43 downwards, so that the limiting rod 51 of the limiting unit 5 passes through the limiting hole 11 on the bottom surface of the sensor body 1 and comes out of the sensor body 1;
6) the reset rope 43 can drive the anchoring thorn 41 to extend outwards when being pulled downwards and pierce the inner wall of the top plate drill hole;
7) and finally, rotating the limiting rod 51 by 90 degrees, and clamping into the limiting groove 12 to finish the anchoring of the optical fiber top plate separation layer sensor.
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. An optical fiber roof separation layer sensor is arranged in a drill hole of a roadway roof and used for detecting the roof separation layer phenomenon, and comprises a sensor body (1), a mounting pipe (2) and an anchor point rope (3), wherein the sensor body (1) is provided with an optical fiber sensor, the upper end of the anchor point rope (3) is anchored in the drill hole of the roadway roof, the other end of the anchor point rope passes through the mounting pipe (2) and is linked with the optical fiber sensor in the sensor body (1), the optical fiber roof separation layer sensor is characterized in that the mounting pipe (2) is provided with an anchoring unit (4), the anchoring unit (4) comprises anchoring thorns (41), the mounting pipe (2) is provided with a plurality of symmetrically arranged puncture holes (21), the outer end of each anchoring thorn (41) is inserted into the puncture hole (21) in a downward inclined manner, the mounting pipe (2) is provided with a reset rope (43), and the top end of the reset rope (43) is connected with a reset ratchet wheel (42), the reset ratchet wheel (42) is rotatably connected with the inner wall of the mounting tube (2), the inner end of the anchoring thorn (41) is connected with the reset rope (43), and the tail end of the reset rope (43) penetrates through the sensor body (1) and extends out of the bottom surface of the sensor body (1).
2. A fibre-optic roof delamination sensor according to claim 1 characterised in that the end of the reset rope (43) is connected to a limiting unit (5), the limiting unit (5) comprising a limiting rod (51), the limiting rod (51) being connected perpendicular to the reset rope (43).
3. The optical fiber roof separation sensor according to claim 2, wherein the bottom surface of the sensor body (1) is provided with a limiting hole (11) at a position contacting with the limiting rod (51), a limiting groove (12) is arranged on the outer side of the bottom surface of the sensor body (1) perpendicular to the limiting hole (11), and the shapes of the limiting hole (11) and the limiting groove (12) are the same as the shape of the limiting rod (51).
4. The optical fiber roof separation sensor according to claim 3, wherein a limiting piece (52) is connected to the lower part of the limiting rod (51) through a reset rope (43), the area of the limiting piece (52) is larger than that of the limiting hole (11), a finger ring (53) is vertically arranged below the limiting piece (52), and the diameter of the finger ring (53) is not smaller than that of an adult index finger.
5. The optical fiber roof separation sensor according to claim 4, wherein the length of the reset rope (43) between the limiting sheet (52) and the limiting rod (51) is not more than the length of one anchoring thorn (41).
6. The optical fiber roof separation sensor according to claim 1, wherein a guide plug (44) is arranged between the puncture hole (21) and the anchoring thorn (41), a thorn hole (441) is arranged in the middle of the guide plug (44) and can accommodate the anchoring thorn (41) to pass through, an inner end of the guide plug (44) is provided with an upward inclined guide tube (442), an angle between the guide tube (442) and the inner wall of the installation tube (2) is not less than 30 degrees, and the guide plug (44) is made of rubber.
7. The optical fiber roof separation sensor according to claim 6, wherein a closed ring (443) is arranged outside the guide plug (44), and the diameter of the closed ring (443) is larger than that of the puncture hole (21).
8. An optical fiber roof plate delamination sensor according to claim 7, characterized in that a ring of sealing ring (444) is arranged around the guiding tube (442) behind the sealing ring (443), a sealing groove (445) is formed between the sealing ring (444) and the sealing ring (443), and the width of the sealing groove (445) is not larger than the wall thickness of the mounting tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122210043.0U CN215676882U (en) | 2021-09-13 | 2021-09-13 | Optical fiber top plate separation layer sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122210043.0U CN215676882U (en) | 2021-09-13 | 2021-09-13 | Optical fiber top plate separation layer sensor |
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| CN215676882U true CN215676882U (en) | 2022-01-28 |
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| CN202122210043.0U Active CN215676882U (en) | 2021-09-13 | 2021-09-13 | Optical fiber top plate separation layer sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527504A (en) * | 2022-02-28 | 2022-05-24 | 东北大学 | Drilling embedded type sensor installation, fixation and recovery integrated device |
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2021
- 2021-09-13 CN CN202122210043.0U patent/CN215676882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527504A (en) * | 2022-02-28 | 2022-05-24 | 东北大学 | Drilling embedded type sensor installation, fixation and recovery integrated device |
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