CN114485426B - Optical detector and method for structural stability of tunnel surrounding rock - Google Patents
Optical detector and method for structural stability of tunnel surrounding rock Download PDFInfo
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- CN114485426B CN114485426B CN202210331852.3A CN202210331852A CN114485426B CN 114485426 B CN114485426 B CN 114485426B CN 202210331852 A CN202210331852 A CN 202210331852A CN 114485426 B CN114485426 B CN 114485426B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention discloses an optical detector for structural stability of surrounding rock of a tunnel, which relates to the technical field of surrounding rock state monitoring and comprises a mounting frame and a sliding sleeve, wherein two bolt mounting holes are formed in the top of the mounting frame, two connecting blocks are arranged at the bottom of the mounting frame, and rack mounting holes are formed in the side part of the sliding sleeve. Outwards carry and draw the operation piece, it relieves spacing to the positioning fixture block to drive the gag lever post, promote the slip cap to remove afterwards, adjust the horizontal position of slip cap, make continuous reciprocating of positioning fixture block, after adjusting to suitable position, loosen the operation piece, under the pulling force effect of extension spring, the gag lever post resets and gets into the spacing inslot, and then carry out spacing fixed to the slip cap, and setting through the damping sleeve, can rotate the collar, adjust the angle of collar, realize the regulation to the mounted position of scale, even a little deviation appears in the position when punching, also need not to punch the installation again, the practicality of device has been strengthened.
Description
Technical Field
The invention relates to the technical field of surrounding rock state monitoring, in particular to an optical detector for structural stability of a tunnel surrounding rock.
Background
In the excavation process of a road tunnel, bad surrounding rock conditions such as weakness, looseness, expansion or fault fracture zones and the like can be frequently met, in the displacement monitoring of tunnel surrounding rock, the displacement of a monitoring section tunnel top is the most important, the traditional monitoring mode is that a lifting ring is arranged at the monitoring section tunnel top, a scale is hung on the lifting ring, the scale hung at a point to be monitored is irradiated by a laser emitting device, monitoring data are obtained through the change of the position of a light spot on the scale, the remote monitoring of the data can be realized by arranging a group of photosensitive sensors on the scale, and the real-time monitoring of the monitoring efficiency can be realized.
Traditional monitoring devices generally punches at the top of a cave when installation, installs bearing structure and scale through the bolt afterwards, if the deviation appears in the position when punching, can lead to the mounted position skew to appear, the influence is measured, if want to adjust the position of scale this moment, then need punch again and install, wastes time and energy, for this we have proposed the structural stability optical detection appearance of the country rock in tunnel.
Disclosure of Invention
The utility model provides a structural stability optical detector of country rock in tunnel to if the deviation appears in the position when punching in the traditional monitoring devices installation that provides in solving above-mentioned background art, then need punch again and install, the problem that wastes time and energy.
In order to achieve the above purpose, the present application provides the following technical solutions: structural stability optical detection appearance of country rock in tunnel, including mounting bracket and sliding sleeve, two bolt mounting holes have been seted up at the top of mounting bracket, two connecting blocks are installed to the bottom of mounting bracket, the rack mounting hole has been seted up to the lateral part of sliding sleeve, slidable mounting has the location rack in the rack mounting hole, the both ends and two of location rack the lateral part that the connecting block is close to each other is connected, install on the sliding sleeve and be used for adjusting the positioning mechanism of sliding sleeve position, the connecting rod is installed through height adjusting mechanism in the bottom of sliding sleeve, the bottom of connecting rod is rotated and is installed the collar, just install the damping cover between connecting rod and the collar, install the scale in the collar, install photosensitive sensor group on the scale.
Borrow by above-mentioned structure, during the use, fix the mounting bracket on the hole top through the bolt, remove the spacing to the sliding sleeve through positioning mechanism, promote the sliding sleeve to remove about on the location rack afterwards, adjust the horizontal position of sliding sleeve, after adjusting to suitable position, carry out spacing fixed to the sliding sleeve through positioning mechanism, and through the setting of damping sleeve, can rotate the collar, adjust the angle of collar, realize the regulation to the mounted position of scale, even a little deviation appears in the position when punching, also need not to punch the installation again, the practicality of device has been strengthened.
Preferably, the positioning mechanism comprises a positioning fixture block, the positioning fixture block is matched with the positioning rack, a fixture block mounting groove is formed in the inner wall of the bottom of the rack mounting hole, the positioning fixture block is slidably mounted in the fixture block mounting groove, a limiting groove is formed in the side portion of the positioning fixture block, an expansion spring is mounted at the bottom of the positioning fixture block, the bottom end of the expansion spring is connected with the inner wall of the bottom of the fixture block mounting groove, and a limiting assembly is mounted on the sliding sleeve.
Further, remove the spacing to the positioning fixture block through spacing subassembly, promote the sliding sleeve to remove afterwards, adjust the horizontal position of sliding sleeve, the location rack can cause the extrusion to the positioning fixture block, makes the continuous reciprocating of positioning fixture block, after adjusting to suitable position, removes through spacing subassembly restriction positioning fixture block, and then carries out spacing fixed to the sliding sleeve, realizes the regulation to the mounted position of scale.
Preferably, the limiting component comprises a limiting rod, a first sliding hole is formed in the inner side wall of the clamping block mounting groove, a limiting rod is slidably mounted in the first sliding hole, an operating block is mounted at one end of the limiting rod, the other end of the limiting rod extends into the limiting groove, and an elastic element is mounted on the limiting rod.
Furthermore, the operation block is pulled outwards to drive the limiting rod to withdraw from the limiting groove, the limitation on the positioning fixture block is relieved, the sliding sleeve is pushed to move left and right subsequently, the horizontal position of the sliding sleeve is adjusted, the positioning rack can extrude the positioning fixture block, the positioning fixture block can continuously move up and down, after the sliding sleeve is adjusted to a proper position, the operation block is loosened, the operation block and the limiting rod can be driven to reset under the action of the tensile force of the elastic element, the limiting rod enters the limiting groove, the positioning fixture block is limited to move, and the sliding sleeve is limited and fixed.
Preferably, the elastic element comprises a tension spring, the tension spring is sleeved on the limiting rod, one end of the tension spring is connected with the side part of the sliding sleeve, and the other end of the tension spring is connected with the side part of the operating block.
Furtherly, through the setting of extension spring, for operation block and gag lever post provide the pulling force that comes from the lateral part of slip cap, after loosening the operation block, this moment under the pulling force effect of extension spring, can drive operation block and gag lever post and all reset, the gag lever post gets into the spacing inslot, and restriction location fixture block removes, and then carries out spacing fixed to the slip cap.
Preferably, the height adjusting mechanism comprises a telescopic rod sleeve, the telescopic rod sleeve is installed at the bottom of the sliding sleeve, a telescopic rod body is installed in the telescopic rod sleeve in a sliding mode, the bottom end of the telescopic rod body is connected with the top of the connecting rod, a plurality of limiting slots are evenly formed in the lateral portion of the telescopic rod body, a second sliding hole is formed in the lateral portion of the telescopic rod sleeve, an inserting rod is installed in the second sliding hole in a sliding mode, a cylindrical handle is installed at one end of the inserting rod, the other end of the inserting rod extends to one of the limiting slots, and a reset element is installed on the inserting rod.
Further, outwards carry the pull cylinder handle, can drive the inserted bar and withdraw from in the spacing slot, remove the spacing to the telescopic rod body, then the telescopic rod body of push-and-pull from top to bottom can be adjusted telescopic rod cover and telescopic rod body's whole length, loosen the cylinder handle afterwards, under reset element's pulling force effect, can drive cylinder handle and inserted bar and all reset, make the inserted bar get into in another spacing slot, carry out spacing fixed to the telescopic rod body, the regulation to the mounting height of scale has been realized, the controllability of scale after the installation has further been strengthened.
Preferably, the reset element comprises a reset spring, the reset spring is sleeved on the inserted rod, one end of the reset spring is connected with the side part of the telescopic rod sleeve, and the other end of the reset spring is connected with the side part of the cylindrical handle.
Furtherly, through reset spring's setting, for cylinder handle and inserted bar provide the pulling force that comes from the lateral part direction of telescopic link cover, make loosen behind the cylinder handle, under reset spring's pulling force effect, can drive cylinder handle and inserted bar and all reset, make the inserted bar get into in another spacing slot, carry on spacing fixedly to the telescopic link body of rod.
Preferably, a sliding groove is formed in the inner side wall of the mounting ring in an annular mode, two sliding blocks are installed in the sliding groove in a sliding mode, the bottom end of one sliding block is connected with the top of the scale, and the top end of the other sliding block is connected with the bottom of the scale.
Further, through the setting of sliding tray, the sliding tray can be followed to the slider and slided, and the scale can rotate at the sliding tray through two sliders, and under the effect of gravity, even there is certain inclination in the installation, also can make the scale remain the vertical state throughout, makes when the hole top takes place to move down, and scale and photosensitive sensor group keep vertical movement, in order to avoid laser irradiation point to squint from photosensitive sensor group.
The application also discloses a use method of the optical detector for the structural stability of the surrounding rock of the tunnel, which comprises the following steps:
s1: the bolt penetrates through the bolt mounting hole to fix the mounting frame in a mounting hole which is punched in advance on the top of the hole, then if the ruler has deviation with a pre-designed mounting position, the operation block is pulled outwards to drive the limiting rod to withdraw from the limiting groove, then the sliding sleeve is pushed to move left and right to adjust the horizontal position of the sliding sleeve, after the operation block is adjusted to a proper position, the operation block is loosened, the limiting rod enters the limiting groove to limit the positioning fixture block, and then the sliding sleeve is limited and fixed;
S2: if the installation height of the scale is too high or too low, the cylindrical handle is pulled outwards to drive the inserted rod to withdraw from the limiting slot, then the telescopic rod body is pushed and pulled up and down to adjust the overall length of the telescopic rod sleeve and the telescopic rod body, then the cylindrical handle is loosened, the inserted rod enters another limiting slot under the action of the tension of the reset spring to limit and fix the telescopic rod body, and the installation ring can be rotated to adjust the angle of the installation ring through the arrangement of the damping sleeve;
s3: after the installation is finished, laser is emitted from an external fixed position to irradiate the photosensitive sensor group, and monitoring data can be obtained through the change of the position of a light spot on the photosensitive sensor group.
In conclusion, the technical effects and advantages of the invention are as follows:
1. according to the invention, the operation block is pulled outwards to drive the limiting rod to relieve the limitation on the positioning fixture block, then the sliding sleeve is pushed to move left and right, the horizontal position of the sliding sleeve is adjusted, the positioning fixture block continuously moves up and down, after the operation block is adjusted to a proper position, the operation block is loosened, the limiting rod is reset to enter the limiting groove under the action of the tension spring, the sliding sleeve is further limited and fixed, the mounting ring can be rotated through the arrangement of the damping sleeve, the angle of the mounting ring is adjusted, the mounting position of the scale is adjusted, even if the position has some deviation during punching, the punching installation is not required again, and the practicability of the device is enhanced.
2. According to the invention, the cylindrical handle is pulled outwards to drive the inserted rod to withdraw from the limiting slot, the limiting on the telescopic rod body is removed, then the telescopic rod body is pushed and pulled up and down to adjust the overall length of the telescopic rod sleeve and the telescopic rod body, then the cylindrical handle is loosened, and under the action of the pulling force of the reset spring, the cylindrical handle and the inserted rod are driven to reset, so that the inserted rod enters another limiting slot to limit and fix the telescopic rod body, the adjustment on the installation height of the scale is realized, and the adjustability of the scale after installation is further enhanced.
3. According to the invention, through the arrangement of the sliding grooves, the sliding blocks can slide along the sliding grooves, the scale can rotate in the sliding grooves through the two sliding blocks, and under the action of gravity, even if a certain inclination angle exists during installation of the installation rack, the scale can be always kept in a vertical state, so that when the top of the hole moves downwards, the scale and the photosensitive sensor group keep moving vertically, and the laser irradiation point is prevented from deviating from the photosensitive sensor group.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of an optical detector for structural stability of a surrounding rock of a tunnel according to an embodiment of the present disclosure;
FIG. 2 is a schematic partial perspective view of a positioning rack and a sliding sleeve region in an embodiment of the present application;
FIG. 3 is a partial sectional structure schematic view of the sliding sleeve area in the embodiment of the present application;
FIG. 4 is a schematic partial perspective view of a height adjustment mechanism in an embodiment of the present application;
FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4;
fig. 6 is a partial perspective view of the mounting ring and the scale region in the embodiment of the present application.
In the figure: 1. a mounting frame; 2. connecting blocks; 3. positioning the rack; 4. a sliding sleeve; 5. a telescopic rod body; 6. a telescopic rod sleeve; 7. a scale; 8. a mounting ring; 9. a connecting rod; 10. a rack mounting hole; 11. positioning a fixture block; 12. a fixture block mounting groove; 13. a tension spring; 14. a limiting rod; 15. an operation block; 16. a tension spring; 17. a cylindrical handle; 18. a return spring; 19. inserting a rod; 20. limiting slots; 21. a slider; 22. a sliding groove; 23. a photosensitive sensor group; 24. and (6) mounting holes for bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment is as follows: refer to structural stability optical detection appearance of country rock in tunnel shown in fig. 1-6, including mounting bracket 1 and sliding sleeve 4, two bolt mounting holes 24 have been seted up at the top of mounting bracket 1, two connecting blocks 2 are installed to the bottom of mounting bracket 1, rack mounting hole 10 has been seted up to the lateral part of sliding sleeve 4, slidable mounting has location rack 3 in the rack mounting hole 10, the both ends of location rack 3 are connected with the lateral part that two connecting blocks 2 are close to each other, install the positioning mechanism who is used for adjusting sliding sleeve 4 position on the sliding sleeve 4, connecting rod 9 is installed through height adjusting mechanism in the bottom of sliding sleeve 4, the bottom of connecting rod 9 is rotated and is installed collar 8, just install the damping sleeve between connecting rod 9 and collar 8, install scale 7 in the collar 8, install photosensitive sensor group 23 on the scale 7.
Borrow by above-mentioned structure, during the use, fix mounting bracket 1 on the hole top through the bolt, remove the spacing to sliding sleeve 4 through positioning mechanism, promote sliding sleeve 4 to remove about on location rack 3 afterwards, adjust the horizontal position of sliding sleeve 4, after adjusting to suitable position, carry out spacing fixed through positioning mechanism to sliding sleeve 4, and through the setting of damping sleeve, can rotate collar 8, adjust the angle of collar 8, realize the regulation to the mounted position of scale 7, even a little deviation appears in the position when punching, also need not to punch the installation again, the practicality of device has been strengthened.
The positioning mechanism comprises a positioning fixture block 11, the positioning fixture block 11 is matched with the positioning rack 3, a fixture block mounting groove 12 is formed in the inner wall of the bottom of the rack mounting hole 10, the positioning fixture block 11 is slidably mounted in the fixture block mounting groove 12, a limiting groove is formed in the side portion of the positioning fixture block 11, an expansion spring 13 is mounted at the bottom of the positioning fixture block 11, the bottom end of the expansion spring 13 is connected with the inner wall of the bottom of the fixture block mounting groove 12, and a limiting assembly is mounted on the sliding sleeve 4. Relieve spacing to positioning fixture block 11 through spacing subassembly, promote afterwards to remove about sliding sleeve 4, adjust the horizontal position of sliding sleeve 4, location rack 3 can cause the extrusion to positioning fixture block 11, makes the continuous reciprocating of positioning fixture block 11, after adjusting to suitable position, moves through limiting assembly restriction positioning fixture block 11, and then carries out spacing fixed to sliding sleeve 4, realizes the regulation to the mounted position of scale 7.
The limiting component comprises a limiting rod 14, a first sliding hole is formed in the inner side wall of the fixture block mounting groove 12, the limiting rod 14 is slidably mounted in the first sliding hole, an operating block 15 is mounted at one end of the limiting rod 14, the other end of the limiting rod 14 extends into a limiting groove, and an elastic element is mounted on the limiting rod 14. Outwards carry and draw operation piece 15, it withdraws from the spacing groove to drive gag lever post 14, remove the spacing to positioning fixture block 11, promote afterwards to remove about sliding sleeve 4, adjust the horizontal position of sliding sleeve 4, location rack 3 can lead to the fact the extrusion to positioning fixture block 11, make positioning fixture block 11 continuous reciprocate, after adjusting to suitable position, loosen operation piece 15, under elastic element's pulling force effect this moment, can drive operation piece 15 and gag lever post 14 and all reset, gag lever post 14 gets into the spacing inslot, restriction positioning fixture block 11 removes, and then carry out spacing fixed to sliding sleeve 4.
The elastic element comprises a tension spring 16, the tension spring 16 is sleeved on the limiting rod 14, one end of the tension spring 16 is connected with the side part of the sliding sleeve 4, and the other end of the tension spring 16 is connected with the side part of the operating block 15. Through the setting of extension spring 16, for operation piece 15 and gag lever post 14 provide the pulling force that comes from the lateral part of sliding sleeve 4, when unclamping operation piece 15 back, at this moment under the pulling force effect of extension spring 16, can drive operation piece 15 and gag lever post 14 and all reset, gag lever post 14 gets into the spacing inslot, and restriction location fixture block 11 removes, and then carries out spacing fixed to sliding sleeve 4.
Height adjusting mechanism includes telescopic link cover 6, telescopic link cover 6 is installed in the bottom of sliding sleeve 4, slidable mounting has telescopic link body 5 in telescopic link cover 6, telescopic link body 5's bottom is connected with the top of connecting rod 9, a plurality of spacing slots 20 have evenly been seted up to telescopic link body 5's lateral part, second slip hole has been seted up to telescopic link cover 6's lateral part, slidable mounting has inserted bar 19 in the second slip hole, cylindrical handle 17 is installed to inserted bar 19's one end, inserted bar 19's the other end extends to in one of them spacing slot 20, install reset element on the inserted bar 19. Outwards carry and draw cylinder handle 17, can drive inserted bar 19 and withdraw from in the spacing slot 20, remove the spacing to the telescopic rod body 5, then the telescopic rod body 5 of upper and lower push-and-pull can be adjusted telescopic rod cover 6 and telescopic rod body 5's whole length, loosen cylinder handle 17 afterwards, under reset element's pulling force effect, can drive cylinder handle 17 and inserted bar 19 and all reset, make inserted bar 19 get into in another spacing slot 20, carry out spacing fixed telescopic rod body 5, the regulation to scale 7's mounting height has been realized, the controllability of scale 7 after the installation has further been strengthened.
The reset element comprises a reset spring 18, the reset spring 18 is sleeved on an insert rod 19, one end of the reset spring 18 is connected with the side part of the telescopic rod sleeve 6, and the other end of the reset spring 18 is connected with the side part of the cylindrical handle 17. Through reset spring 18's setting, for cylinder handle 17 and inserted bar 19 provide the pulling force that comes from the lateral part direction of telescopic link cover 6, make loosen cylinder handle 17 after, under reset spring 18's pulling force effect, can drive cylinder handle 17 and inserted bar 19 and all reset, make inserted bar 19 get into in another spacing slot 20, carry on spacing fixedly to the telescopic link body 5.
Sliding tray 22 has been seted up to the annular on the inside wall of collar 8, and sliding tray 22 slidable mounting has two sliders 21, and the bottom of one of them slider 21 is connected with the top of scale 7, and the top of another slider 21 is connected with the bottom of scale 7. Through sliding tray 22's setting, slider 21 can slide along sliding tray 22, and scale 7 can rotate in sliding tray 22 through two sliders 21 to under the effect of gravity, even there is certain inclination when the installation frame 1 is installed, also can make scale 7 remain the vertical state throughout, when making when the hole top takes place to move down, scale 7 and photosensitive sensor group 23 keep vertical movement, with avoid the laser irradiation point to squint from photosensitive sensor group 23.
The application also discloses a use method of the optical detector for the structural stability of the surrounding rock of the tunnel, which comprises the following steps:
s1: the mounting frame 1 is fixed in a mounting hole which is formed in advance on the top of a hole by penetrating a bolt through a bolt mounting hole 24 through a bolt, then if the ruler 7 has a deviation with a pre-designed mounting position, the operating block 15 is lifted outwards to drive the limiting rod 14 to withdraw from the limiting groove, then the sliding sleeve 4 is pushed to move left and right to adjust the horizontal position of the sliding sleeve 4, after the operation block 15 is adjusted to the proper position, the limiting rod 14 enters the limiting groove to limit the positioning fixture block 11, and further the sliding sleeve 4 is limited and fixed;
s2: if the installation height of the scale 7 is too high or too low, the cylindrical handle 17 is lifted outwards, the inserted rod 19 is driven to withdraw from the limiting slot 20, then the telescopic rod body 5 is pushed and pulled up and down to adjust the overall length of the telescopic rod sleeve 6 and the telescopic rod body 5, then the cylindrical handle 17 is loosened, the inserted rod 19 enters another limiting slot 20 under the action of the tensile force of the reset spring 18 to limit and fix the telescopic rod body 5, and the installation ring 8 can be rotated through the arrangement of the damping sleeve to adjust the angle of the installation ring 8;
S3: after the installation is finished, laser is emitted from an external fixed position to irradiate the photosensitive sensor group 23, and monitoring data can be obtained through the change of the position of a light spot on the photosensitive sensor group 23.
The working principle of the invention is as follows:
when the device is used, the mounting frame 1 is fixed on the top of a hole through a bolt, the operating block 15 is lifted outwards to drive the limiting rod 14 to withdraw from the limiting groove, the limiting on the positioning clamping block 11 is relieved, the sliding sleeve 4 is pushed to move left and right, the horizontal position of the sliding sleeve 4 is adjusted, the positioning rack 3 can extrude the positioning clamping block 11, the positioning clamping block 11 continuously moves up and down, the operating block 15 is loosened after the positioning clamping block 11 is adjusted to a proper position, the operating block 15 and the limiting rod 14 are both driven to reset under the action of the tension spring 16, the limiting rod 14 enters the limiting groove to limit the movement of the positioning clamping block 11, the sliding sleeve 4 is limited and fixed, the mounting position of the scale 7 is adjusted, the mounting ring 8 can be rotated through the arrangement of the damping sleeve, the angle of the mounting ring 8 is adjusted, and certain damping is provided, so that the angle of the mounting ring 8 cannot be easily rotated after the adjustment is finished, even if the position has slight deviation when punching, also need not to punch the installation again, strengthened the practicality of device.
Outwards carry and draw cylinder handle 17, can drive 19 withdraws from in the spacing slot 20 of inserted bar, remove the spacing to the telescopic rod body 5, then the telescopic rod body 5 of upper and lower push-and-pull can be adjusted telescopic rod cover 6 and telescopic rod body 5's whole length, loosen cylinder handle 17 afterwards, under reset spring 18's pulling force effect, can drive cylinder handle 17 and inserted bar 19 and all reset, make inserted bar 19 get into in another spacing slot 20, carry on spacing fixed telescopic rod body 5, the regulation to scale 7's mounting height has been realized, the controllability of scale 7 after the installation has further been strengthened.
Through sliding tray 22's setting, slider 21 can slide along sliding tray 22, and scale 7 can rotate in sliding tray 22 through two sliders 21 to under the effect of gravity, even there is certain inclination when the installation, also can make scale 7 remain the vertical state throughout, make when the hole top takes place to move down, scale 7 and photosensitive sensor group 23 keep vertical movement, so as to avoid the laser irradiation point to squint from photosensitive sensor group 23.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. Structural stability optical detection appearance of country rock in tunnel, including mounting bracket (1) and slip cap (4), its characterized in that: two bolt mounting holes (24) are formed in the top of the mounting rack (1), two connecting blocks (2) are mounted at the bottom of the mounting rack (1), a rack mounting hole (10) is formed in the side part of the sliding sleeve (4), a positioning rack (3) is slidably mounted in the rack mounting hole (10), two ends of the positioning rack (3) are connected with the side parts of the two connecting blocks (2) which are close to each other, the sliding sleeve (4) is provided with a positioning mechanism for adjusting the position of the sliding sleeve (4), the bottom of the sliding sleeve (4) is provided with a connecting rod (9) through a height adjusting mechanism, the bottom end of the connecting rod (9) is rotatably provided with a mounting ring (8), and a damping sleeve is arranged between the connecting rod (9) and the mounting ring (8), a scale (7) is installed in the mounting ring (8), and a photosensitive sensor group (23) is installed on the scale (7);
the positioning mechanism comprises a positioning clamping block (11), the positioning clamping block (11) is matched with the positioning rack (3), a clamping block mounting groove (12) is formed in the inner wall of the bottom of the rack mounting hole (10), the positioning clamping block (11) is slidably mounted in the clamping block mounting groove (12), a limiting groove is formed in the side portion of the positioning clamping block (11), an expansion spring (13) is mounted at the bottom of the positioning clamping block (11), the bottom end of the expansion spring (13) is connected with the inner wall of the bottom of the clamping block mounting groove (12), and a limiting assembly is mounted on the sliding sleeve (4);
The limiting component comprises a limiting rod (14), a first sliding hole is formed in the inner side wall of the clamping block mounting groove (12), the limiting rod (14) is mounted in the first sliding hole in a sliding mode, an operating block (15) is mounted at one end of the limiting rod (14), the other end of the limiting rod (14) extends into the limiting groove, and an elastic element is mounted on the limiting rod (14);
the elastic element comprises a tension spring (16), the tension spring (16) is sleeved on the limiting rod (14), one end of the tension spring (16) is connected with the side part of the sliding sleeve (4), and the other end of the tension spring (16) is connected with the side part of the operation block (15);
the height adjusting mechanism comprises a telescopic rod sleeve (6), the telescopic rod sleeve (6) is installed at the bottom of the sliding sleeve (4), a telescopic rod body (5) is installed in the telescopic rod sleeve (6) in a sliding mode, the bottom end of the telescopic rod body (5) is connected with the top of the connecting rod (9), a plurality of limiting slots (20) are evenly formed in the side portion of the telescopic rod body (5), a second sliding hole is formed in the side portion of the telescopic rod sleeve (6), an inserting rod (19) is installed in the second sliding hole in a sliding mode, a cylindrical handle (17) is installed at one end of the inserting rod (19), the other end of the inserting rod (19) extends into one of the limiting slots (20), and a reset element is installed on the inserting rod (19);
The reset element comprises a reset spring (18), the reset spring (18) is sleeved on the inserted rod (19), one end of the reset spring (18) is connected with the side part of the telescopic rod sleeve (6), and the other end of the reset spring (18) is connected with the side part of the cylindrical handle (17);
sliding tray (22) have been seted up to the annular on the inside wall of collar (8), sliding tray (22) slidable mounting has two sliders (21), one of them the bottom of slider (21) with the top of scale (7) is connected, another the top of slider (21) with the bottom of scale (7) is connected.
2. The use method of the optical detector for detecting the structural stability of the surrounding rock of the tunnel according to claim 1, is characterized by comprising the following steps:
s1: the mounting frame (1) is fixed in a mounting hole which is formed in the top of a hole in advance by penetrating a bolt through a bolt mounting hole (24), then if a ruler (7) deviates from a pre-designed mounting position, an operation block (15) is pulled outwards to drive a limiting rod (14) to withdraw from a limiting groove, then a sliding sleeve (4) is pushed to move left and right, the horizontal position of the sliding sleeve (4) is adjusted, after the operation block (15) is adjusted to a proper position, the limiting rod (14) enters the limiting groove, a positioning clamping block (11) is limited, and then the sliding sleeve (4) is limited and fixed;
S2: if the mounting height of the scale (7) is too high or too low, the cylindrical handle (17) is lifted outwards, the inserted rod (19) can be driven to withdraw from the limiting slot (20), then the telescopic rod body (5) is pushed and pulled up and down to adjust the overall length of the telescopic rod sleeve (6) and the telescopic rod body (5), then the cylindrical handle (17) is loosened, the inserted rod (19) enters another limiting slot (20) under the action of the pulling force of the reset spring (18), the telescopic rod body (5) is limited and fixed, the mounting ring (8) can be rotated through the arrangement of the damping sleeve, and the angle of the mounting ring (8) is adjusted;
s3: after the installation is finished, laser is emitted from an external fixed position to irradiate the photosensitive sensor group (23), and monitoring data can be obtained through the change of the position of a light spot on the photosensitive sensor group (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210331852.3A CN114485426B (en) | 2022-03-31 | 2022-03-31 | Optical detector and method for structural stability of tunnel surrounding rock |
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| CN202210331852.3A CN114485426B (en) | 2022-03-31 | 2022-03-31 | Optical detector and method for structural stability of tunnel surrounding rock |
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| CN114485426B true CN114485426B (en) | 2022-06-28 |
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| CN213809224U (en) * | 2020-12-04 | 2021-07-27 | 陈玉成 | Fixed clamping structure for municipal building |
| CN113932694A (en) * | 2021-10-25 | 2022-01-14 | 四川省水利科学研究院 | Culvert safety automatic monitoring system |
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| US6091503A (en) * | 1998-06-23 | 2000-07-18 | Tdk Corporation | Method for determining mechanical property of resin discs and optical discs |
| CN101886916A (en) * | 2010-06-13 | 2010-11-17 | 中国科学院武汉岩土力学研究所 | Optical observation device of deformation in surrounding rock |
| CN205448987U (en) * | 2015-12-29 | 2016-08-10 | 江西飞尚科技有限公司 | Structural distortion who utilizes laser sensors measures and collection system |
| CN213809224U (en) * | 2020-12-04 | 2021-07-27 | 陈玉成 | Fixed clamping structure for municipal building |
| CN113932694A (en) * | 2021-10-25 | 2022-01-14 | 四川省水利科学研究院 | Culvert safety automatic monitoring system |
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