An automatic settlement monitoring device for tunnel engineering

Abstract

The present invention relates to the field of tunnel monitoring technology, and more specifically, to an automatic settlement monitoring device for tunnel engineering, comprising a monitoring block, an electric slider, and a sliding frame, wherein a rectangular block is fixedly connected to the top wall of the monitoring block, a cavity is defined in the inner wall of the rectangular block, a C-shaped plate is slidably connected to the top wall of the cavity, and a monitoring mechanism is provided on the C-shaped plate; the monitoring mechanism comprises a monitoring roller rotatably connected to the inner side wall of the C-shaped plate, a first gear is rotatably connected to the side wall of the C-shaped plate, a first through hole and a second through hole are defined in the inner wall of the cavity, a first rack is fixedly connected to the inner wall of the first through hole, and a second rack is fixedly connected to the inner wall of the second through hole. The present invention provides a sliding frame, an electric slider, and a monitoring mechanism, so that the sliding frame can move along the direction of the tunnel, and the electric slider drives the monitoring mechanism to reciprocate horizontally along the sliding frame, thereby automatically monitoring the settlement conditions at different locations in the tunnel.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel monitoring, and in particular to an automatic settlement monitoring device for tunnel engineering. Background Art

[0002] Tunnel engineering is a structure built underground, underwater or in a mountain to lay railways or build roads for motor vehicles to pass through.

[0003] After searching, the patent document with announcement number CN116399293B is: a system and method for monitoring the settlement and deformation of an operating tunnel, including an arched slide rail, symmetrical L-shaped sliders slidingly arranged on the upper crossbeam of the arched slide rail, and the top surface of the symmetrical L-shaped sliders is provided with a support box, and a support bar is slidably inserted inside the support box, the lower surface of the symmetrical support bar is connected with a sliding plate, and a contact roller is rotatably arranged between the upper end surfaces of the symmetrical support bar, and a pin column is installed on the lower surface of the sliding plate, and the pin column slides out to the lower surface of the support box, and a contact pressure plate is provided on the upper surface of the upper crossbeam of the arched slide rail, the upper surface of the contact pressure plate contacts the lower end surface of the pin column, and a pressure sensor is provided between the lower surface of the contact pressure plate and the mounting groove; the monitoring personnel of the present invention judge the settlement and deformation monitoring of a certain or local surrounding rock based on the data transmitted by the pressure sensor, so that the construction personnel can timely repair the location of the settlement of the tunnel arch surface. However, there are also some shortcomings:

[0004] For example, if the settlement is judged only by displacing the contact roller to squeeze the contact pressure plate, it will be difficult to monitor and warn in a timely manner when a slight settlement occurs on the top wall of the tunnel. Moreover, if impurities such as mud adhere to the top wall of the tunnel, it will affect the accuracy of the monitoring and lead to false alarms.

[0005] To this end, we proposed an automatic settlement monitoring device for tunnel engineering. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems existing in the prior art and to propose an automatic settlement monitoring device for tunnel engineering.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An automatic settlement monitoring device for tunnel engineering includes a monitoring block, an electric slider, and a sliding frame. The top wall of the monitoring block is fixedly connected to a rectangular block, the inner wall of the rectangular block is provided with a cavity, the top wall of the cavity is slidably connected to a C-shaped plate, and the C-shaped plate is provided with a monitoring mechanism.

[0009] The monitoring mechanism includes a monitoring roller rotatably connected to the inner wall of the C-shaped plate, the side wall of the C-shaped plate is rotatably connected to a first gear, the inner wall of the cavity is provided with a first through hole and a second through hole, the inner wall of the first through hole is fixedly connected to a first rack, the inner wall of the second through hole is fixedly connected to a second rack, the inner wall of the cavity is slidably connected to a first long block, the side wall of the first long block is fixedly connected to a third rack, the side wall of the first long block is rotatably connected to a second gear, the inner wall of the cavity is slidably connected to a second long block, the side wall of the second long block is fixedly connected to a fourth rack, the side wall of the second long block is fixedly connected to a conductive column, the side wall of the cavity is fixedly connected to a resistor sheet, and an alarm is installed on the side wall of the monitoring block.

[0010] Preferably, the rectangular block is provided with a lifting mechanism for improving monitoring accuracy, the lifting mechanism includes a rectangular frame fixedly connected to the top wall of the rectangular block, the inner wall of the rectangular frame is symmetrically provided with sliding grooves, each inner wall of the sliding groove is sealed and slidably connected with a slide, the top wall of the slide is fixedly connected with a support column, the end of the support column away from the slide is fixedly connected with a brush, the side wall of the support column is fixedly installed with a nozzle, the inner wall of the second long strip is provided with a sliding cavity, the inner wall of the sliding cavity is sealed and slidably connected with a sliding plug, the side wall of the sliding plug is fixedly connected with a connecting rod, and the end of the connecting rod away from the sliding plug passes through the inner wall of the sliding cavity and is fixedly connected to the C-shaped plate.

[0011] Preferably, the side wall of the monitoring block is fixedly connected to a liquid storage tank, and the inner wall of the sliding cavity is passed through and fixedly connected with a one-way liquid inlet pipe and two one-way liquid outlet pipes, the other end of the one-way liquid inlet pipe passes through the inner wall of the sliding cavity and is fixedly connected to the liquid storage tank, the other end of the one-way liquid outlet pipe passes through the inner wall of the sliding cavity and is fixedly connected to the inner wall of a corresponding slide groove, the inner wall of the slide groove is fixedly connected to the nozzle through a connecting pipe, and the slide plate is elastically connected to the inner wall of the slide groove through a reset spring.

[0012] Preferably, the lifting mechanism also includes a rectangular groove opened on the top wall of the monitoring block, the inner wall of the rectangular groove is slidably connected to a sliding rack, the top of the sliding rack is fixedly connected to a scraper, the bottom end of the sliding rack is elastically connected to the inner wall of the rectangular groove through a tension spring, a wedge block is slidably connected through the side wall of the rectangular groove, the other end of the wedge block extends into the interior of the sliding cavity, a wedge-shaped hole is opened on the side wall of the other end of the wedge block, and a slot is opened on the side wall of the sliding rack.

[0013] Preferably, a wedge-shaped plate is fixedly connected to the bottom wall of the second long strip, the wedge-shaped plate and the inner wall of the wedge-shaped hole are embedded and slidably matched, and one end of the wedge-shaped block is inserted into the slot.

[0014] Preferably, the inner wall of the monitoring block is provided with a T-shaped groove connected to the inner wall of the rectangular groove, the inner wall of the T-shaped groove is slidably connected to a spur rack, the inner wall of the T-shaped groove is rotatably connected to a transmission gear, the transmission gear and the sliding rack are meshed and connected, the transmission rack and the spur rack are meshed and connected, the bottom wall of the spur rack is fixedly connected to a rubber sleeve, the side wall of the monitoring block is fixedly connected to an L-shaped frame, the inner wall of the L-shaped frame is rotatably connected to a support plate, the end of the rubber sleeve away from the spur rack is fixedly connected to the rubber sleeve, and the inside of the rubber sleeve is filled with electrorheological fluid.

[0015] Preferably, the first rack is meshed and connected with the first gear, the third rack is meshed and connected with the first gear, the second rack is meshed and connected with the second gear, and the fourth rack is meshed and connected with the second gear.

[0016] Preferably, the conductive column, the resistor and the alarm are electrically connected, the slide frame is in an inverted cross-shaped structure, and a plurality of electric pulleys are symmetrically fixedly connected to the bottom wall of the slide frame.

[0017] Preferably, the electric slider is slidably fitted on the side wall of the slide frame, the electric slider and the monitoring block are fixedly connected, a tension spring is fixedly sleeved on the side wall of the U-shaped plate, and the other end of the tension spring is fixedly connected to the inner wall of the cavity.

[0018] Compared with the existing technology, the advantages of the present invention are:

[0019] 1. By setting up a sliding frame, an electric slider, and a monitoring mechanism, the sliding frame can move a certain distance along the direction of the tunnel. Then the electric slider drives the monitoring mechanism to move back and forth horizontally along the sliding frame, thereby automatically monitoring the settlement conditions at different locations in the tunnel;

[0020] 2. When monitoring the settlement of the tunnel's top wall, the electric slider drives the monitoring block to move rightward on the slide frame, and the monitoring roller rotates in contact with the tunnel's top wall. When the tunnel's top wall may settle, the monitoring roller will move downward a short distance. By setting up structures such as a U-shaped plate, multiple gears, and multiple racks, the tiny downward displacement of the monitoring roller is amplified multiple times, preventing the monitoring mechanism from having difficulty in detecting tiny settlements in a timely manner. The conductive column will slide downward against the side wall of the resistor, causing the alarm to reach the operating voltage and generate an alarm, automatically recording the possible tunnel settlement at this location;

[0021] 3. False alarms may also occur when impurities such as mud adhere to the top wall of the tunnel or when impurities adhere to the roller of the monitoring roller. During the above process, as the U-shaped plate and the second long block move downward, the distance between the U-shaped plate and the second long block will continue to increase due to the faster movement speed of the second long block. By providing structures such as a sliding plug, a connecting rod and a brush, the brush and the roller of the monitoring roller are brought into contact with each other, brushing the surface of the monitoring roller to remove impurities. Subsequently, cleaning liquid will be sprayed from the nozzle through the connecting pipe to rinse the surface of the monitoring roller, thereby avoiding false alarms of tunnel top wall settlement caused by impurities adhering to the monitoring roller;

[0022] 4. When the monitoring roller moves downward for a long distance, the wedge plate drives the wedge block to slide to the right for a distance through the wedge hole and disengages from the slot. Under the action of the tension spring, the sliding rack slides upward for a distance, and then the sliding rack drives the scraper to contact the top wall inside the tunnel. Then, the electric slider drives the scraper to move left and right repeatedly on the top wall inside the tunnel through the monitoring block and other structures, so that the scraper scrapes against the top wall inside the tunnel. If there is impurities such as mud on the top wall inside the tunnel, it can be scraped off, and then the monitoring roller is ordered to monitor again;

[0023] 5. If the top wall of the tunnel is not a false alarm caused by impurities such as soil, then the top wall of the tunnel has experienced a large settlement. At this time, there is a safety hazard at the settlement of the top wall of the tunnel. During the upward movement of the sliding rack, by setting up structures such as transmission gears, spur racks and support plates, the bottom end of the support plate is in contact with the ground inside the tunnel, and the electrorheological fluid inside the rubber sleeve is energized. The electrorheological fluid changes from liquid to solid, and then forms a hard body inside the rubber sleeve, forming a stable triangular structure with the support plate, which can partially support the top wall of the tunnel and wait for subsequent maintenance personnel to perform inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the appearance and structure of an automatic settlement monitoring device for tunnel engineering proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the connection relationship between the electric slider and the monitoring block in the automatic settlement monitoring device for tunnel engineering proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the cavity, rectangular groove and T-shaped groove of the automatic settlement monitoring device for tunnel engineering proposed by the present invention;

[0027] Figure 4 for Figure 3 A magnified schematic diagram of the structure of part A;

[0028] Figure 5This is a schematic diagram of the structure of a monitoring roller in an automatic settlement monitoring device for tunnel engineering proposed by the present invention after it moves downward for a certain distance when detecting settlement;

[0029] Figure 6 This is a schematic diagram of the structure inside the chute of an automatic settlement monitoring device for tunnel engineering proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the structure inside the sliding trough of an automatic settlement monitoring device for tunnel engineering proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the connection relationship between the tension spring and the C-shaped plate in an automatic settlement monitoring device for tunnel engineering proposed by the present invention.

[0032] In the figure: 1. Monitoring block; 2. Electric slider; 3. Sliding frame; 4. Rectangular block; 5. Cavity; 6. C-shaped plate; 7. Monitoring roller; 8. First gear; 9. First through-hole; 10. First rack; 11. First strip block; 12. Third rack; 13. Wedge-shaped plate; 14. Second through-hole; 15. Second rack; 16. Second strip block; 17. Fourth rack; 18. Conductive post; 19. Alarm; 20. Wedge-shaped block; 21. Wedge-shaped hole; 22. Rectangular slot; 23. Tension spring; 24. Sliding rack. 25. Scraper; 26. Sliding cavity; 27. Sliding plug; 28. Connecting rod; 29. ​​One-way liquid inlet pipe; 30. One-way liquid outlet pipe; 31. Second gear; 32. Slide groove; 33. Slide plate; 34. Return spring; 35. Connecting pipe; 36. Support column; 37. Nozzle; 38. Brush; 39. T-slot; 40. Transmission gear; 41. Straight rack; 42. Rubber sleeve; 43. L-shaped frame; 44. Support plate; 45. Liquid storage tank; 46. Slot; 47. Resistor; 48. Rectangular frame; 49. Electric pulley. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figure 1 - Figure 8 An automatic settlement monitoring device for tunnel engineering includes a monitoring block 1, an electric slider 2 and a sliding frame 3. The top wall of the monitoring block 1 is fixedly connected to a rectangular block 4. The inner wall of the rectangular block 4 is provided with a cavity 5. The top wall of the cavity 5 is slidably connected to a U-shaped plate 6 (such as Figure 3 As shown), a monitoring mechanism is provided on the U-shaped plate 6;

[0035] The monitoring mechanism includes a monitoring roller 7 rotatably connected to the inner wall of the C-shaped plate 6, the side wall of the C-shaped plate 6 is rotatably connected to the first gear 8, the inner wall of the cavity 5 is provided with a first through hole 9 and a second through hole 14, the inner wall of the first through hole 9 is fixedly connected to the first rack 10, the inner wall of the second through hole 14 is fixedly connected to the second rack 15, the inner wall of the cavity 5 is slidably connected to the first long block 11, the side wall of the first long block 11 is fixedly connected to the third rack 12, the side wall of the first long block 11 is rotatably connected to the second gear 31, the inner wall of the cavity 5 is slidably connected to the second long block 16, the side wall of the second long block 16 is fixedly connected to the fourth rack 17, the side wall of the second long block 16 is fixedly connected to the conductive column 18, the side wall of the cavity 5 is fixedly connected to the resistor 47, and the side wall of the monitoring block 1 is installed with an alarm 19.

[0036] The rectangular block 4 is provided with a lifting mechanism for improving monitoring accuracy. The lifting mechanism includes a rectangular frame 48 fixedly connected to the top wall of the rectangular block 4. The inner wall of the rectangular frame 48 is symmetrically provided with slide grooves 32. The inner wall of each slide groove 32 is sealed and slidably connected to a slide plate 33. The top wall of the slide plate 33 is fixedly connected to a support column 36. The end of the support column 36 away from the slide plate 33 is fixedly connected to a brush 38. The side wall of the support column 36 is fixedly installed with a nozzle 37. The inner wall of the second long strip 16 is provided with a sliding cavity 26. The inner wall of the sliding cavity 26 is sealed and slidably connected to a sliding plug 27. The side wall of the sliding plug 27 is fixedly connected to a connecting rod 28. The end of the connecting rod 28 away from the sliding plug 27 passes through the inner wall of the second long strip 16 and is fixedly connected to the C-shaped plate 6.

[0037] A liquid storage tank 45 is fixedly connected to the side wall of the monitoring block 1, and the liquid storage tank 45 is filled with cleaning fluid. A one-way liquid inlet pipe 29 and two one-way liquid outlet pipes 30 are fixedly connected to the inner wall of the sliding cavity 26. The other end of the one-way liquid inlet pipe 29 passes through the inner wall of the rectangular block 4 and is fixedly connected to the liquid storage tank 45. The other end of the one-way liquid outlet pipe 30 passes through the inner wall of the rectangular block 4 and is fixedly connected to the inner wall of a corresponding chute 32. The one-way liquid inlet pipe 29 only allows the cleaning fluid inside the liquid storage tank 45 to enter the sliding cavity 26, and the one-way liquid outlet pipe 30 only allows the cleaning fluid inside the sliding cavity 26 to enter the corresponding chute 32. The upper inner wall of the chute 32 is fixedly connected to the nozzle 37 through the connecting pipe 35. When the slide plate 33 slides upward for a distance, the cleaning fluid can enter the nozzle 37 through the connecting pipe 35 and be sprayed out. The slide plate 33 is elastically connected to the inner wall of the chute 32 by the return spring 34.

[0038] The lifting mechanism also includes a rectangular groove 22 opened on the top wall of the monitoring block 1, and a sliding rack 24 is slidably connected to the inner wall of the rectangular groove 22. The top of the sliding rack 24 is fixedly connected to the scraper 25. The bottom end of the sliding rack 24 is elastically connected to the inner wall of the rectangular groove 22 through a tension spring 23. A wedge block 20 is slidably connected to the side wall of the rectangular groove 22. The other end of the wedge block 20 extends into the interior of the cavity 5. A wedge-shaped hole 21 is opened on the side wall of the other end of the wedge block 20, and a slot 46 is opened on the side wall of the sliding rack 24.

[0039] The bottom wall of the second long strip 16 is fixedly connected with the wedge plate 13 , and the wedge plate 13 and the inner wall of the wedge hole 21 are embedded and slidably matched without separation. One end of the wedge block 20 is inserted into the slot 46 .

[0040] The inner wall of the monitoring block 1 is provided with a T-shaped slot 39 connected to the inner wall of the rectangular slot 22. The inner wall of the T-shaped slot 39 is slidably connected to a straight rack 41. The inner wall of the T-shaped slot 39 is rotatably connected to a transmission gear 40. The transmission gear 40 is meshed with the sliding rack 24. The transmission gear 40 is meshed with the straight rack 41. The bottom wall of the straight rack 41 is fixedly connected to a rubber sleeve 42. The side wall of the monitoring block 1 is fixedly connected to an L-shaped frame 43. The inner wall of the L-shaped frame 43 is rotatably connected to a support plate 44. The end of the rubber sleeve 42 away from the straight rack 41 is fixedly connected to the support plate 44. The inner wall of the rubber sleeve 42 is fixedly connected to the support plate 44. The inside is filled with electrorheological fluid, which is composed of high-dielectric-constant solid particles and low-dielectric-constant silicone oil. Under the influence of an electric field, the electrorheological fluid undergoes a liquid-to-solid transition. When the applied electric field strength is significantly below a critical value, the electrorheological fluid is liquid; when the electric field strength is much higher than this critical value, it becomes solid. Under the influence of an electric field, the electrorheological fluid produces a significant electrorheological effect, allowing for rapid and reversible transitions between liquid and quasi-solid states, or between a fluid (liquid-like) state and a solid state, while maintaining continuous viscosity. This transition is extremely rapid, instantaneously controllable, consumes minimal energy, and enables real-time control.

[0041] The first rack 10 is meshed and connected with the first gear 8 , the third rack 12 is meshed and connected with the first gear 8 , the second rack 15 is meshed and connected with the second gear 31 , and the fourth rack 17 is meshed and connected with the second gear 31 .

[0042] The conductive column 18, the resistor 47 and the alarm 19 are electrically connected. The slide 3 has an inverted cross structure. The bottom wall of the slide 3 is symmetrically fixedly connected with an electric pulley 49. The electric pulley 49 and the electric slider 2 are both existing technologies and will not be described in detail here.

[0043] The electric slider 2 is slidably fitted on the side wall of the slide frame 3. The electric slider 2 is fixedly connected to the monitoring block 1. A tension spring (such as Figure 8 As shown), the other end of the tension spring is fixedly connected to the inner wall of the cavity 5.

[0044] In the present invention, the frame trajectory at the top of the slide 3 is consistent with the trajectory of the top wall inside the tunnel. The electric slider 2 can move back and forth horizontally along the slide 3, and the electric pulley 49 can drive the slide 3 to move a certain distance along the direction of the tunnel each time, thereby automatically monitoring the settlement conditions at different positions of the tunnel.

[0045] When monitoring the settlement of the top wall inside the tunnel, the electric slider 2 is turned on, and the electric slider 2 drives the monitoring block 1 to move to the right on the slide 3. Since the roller portion of the monitoring roller 7 is in contact with the top wall inside the tunnel, the monitoring roller 7 will rotate in conjunction with the top wall inside the tunnel during the movement with the monitoring block 1. When the top wall inside the tunnel may settle, the monitoring roller 7 will move downward for a short distance, and the monitoring roller 7 will drive the C-shaped plate 6 to move downward for a short distance, and the C-shaped plate 6 will drive the first gear 8 to move. Since the first gear 8 is respectively engaged with the first rack 10 and the third rack 12, the third rack 12 will drive the third rack 12 to move downward. A long strip 11 moves downward at double the stroke, and under the action of the second gear 31 and the second rack 15, the second gear 31 drives the second long strip 16 to move downward at double the stroke through the fourth rack 17, thereby amplifying the tiny downward displacement of the monitoring roller 7 by multiple times, so as to avoid the monitoring mechanism from having difficulty in timely detecting tiny settlements. Then, the conductive column 18 fixedly connected to the side wall of the second long strip 16 will slide downward against the side wall of the resistor 47, so that the resistance in the circuit formed by the resistor 47, the conductive column 18 and the alarm 19 will continue to decrease until the alarm 19 reaches the working voltage, generates an alarm and automatically records the possible tunnel settlement here.

[0046] When there is dirt or other impurities adhering to the top wall of the tunnel or impurities adhering to the roller portion of the monitoring roller 7, a false alarm may occur. In the above process, the U-shaped plate 6 and the second long block 16 are moving downward. Since the movement speed of the second long block 16 is faster, the distance between the U-shaped plate 6 and the second long block 16 will continue to increase. Then the connecting rod 28 fixedly connected to the inner wall of the U-shaped plate 6 will drive the sliding plug 27 to slide in the sliding cavity 26 through the one-way liquid outlet pipe 30. The cleaning liquid is squeezed into the two chutes 32, and the cleaning liquid squeezed into the chutes 32 will push the slide plate 33 to slide upward for a distance, and the slide plate 33 drives the support column 36 to move upward for a distance, so that the brush 38 and the roller part of the monitoring roller 7 are in contact with each other, and the surface of the monitoring roller 7 is brushed to remove impurities. Then the cleaning liquid will be sprayed out from the nozzle 37 through the connecting pipe 35 to flush the surface of the monitoring roller 7, so as to avoid impurities adhering to the monitoring roller 7 and causing false alarms of the settlement of the top wall inside the tunnel.

[0047] When the monitoring roller 7 moves downward for a long distance, it indicates that the possible settlement is serious and there is a safety hazard. It is necessary to eliminate other false alarms. Then, the second long block 16 moves downward for a long distance and drives the wedge plate 13 to move synchronously, so that the wedge plate 13 drives the wedge block 20 to slide to the right for a distance (such as 20). Figure 3 and Figure 4 As shown), the wedge block 20 can be released from the limit release state in the slot 46, and the sliding rack 24 slides upward for a distance under the action of the tension spring 23. Then the sliding rack 24 will drive the scraper 25 to contact the top wall inside the tunnel. Then the electric slider 2 drives the scraper 25 to move back and forth on the top wall inside the tunnel through the monitoring block 1 and other structures, so that the scraper 25 scrapes against the top wall inside the tunnel. If there is impurities such as mud on the top wall inside the tunnel, it can be scraped off, and then the monitoring roller 7 is ordered to re-monitor.

[0048] If the top wall of the tunnel is not a false alarm caused by impurities such as soil, then the top wall of the tunnel has a large settlement. At this time, the settlement of the top wall of the tunnel has a safety hazard. In the process of the sliding rack 24 moving upward (such as Figure 3 As shown in FIG, the sliding rack 24 will drive the transmission gear 40 meshing with it to rotate, and the transmission gear 40 will drive the straight rack 41 meshing with it to move downward for a distance, then the straight rack 41 will drive the rubber sleeve 42 to move downward, and since the other end of the rubber sleeve 42 is fixedly connected to the support plate 44, the user can pull the support plate 44 to rotate it (as shown in FIG. Figure 2 As shown), until the bottom end of the support plate 44 contacts the ground inside the tunnel, at which time the rubber sleeve 42 will be stretched and deformed, and then the electrorheological fluid inside the rubber sleeve 42 will be energized, and the electrorheological fluid will change from liquid to solid, thereby forming a hard body inside the rubber sleeve 42, forming a stable triangular structure with the support plate 44, and thus partially supporting the top wall inside the tunnel, waiting for subsequent maintenance personnel to carry out inspection and maintenance.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automatic settlement monitoring device for tunnel engineering, comprising a monitoring block, an electric slider and a sliding frame, characterized in that: The top wall of the monitoring block is fixedly connected with a rectangular block, the inner wall of the rectangular block is provided with a cavity, the top wall of the cavity is slidably connected with a C-shaped plate, and the C-shaped plate is provided with a monitoring mechanism; The monitoring mechanism includes a monitoring roller rotatably connected to the inner wall of the C-shaped plate, the side wall of the C-shaped plate is rotatably connected to a first gear, a first through hole and a second through hole are opened in the inner wall of the cavity, a first rack is fixedly connected to the inner wall of the first through hole, a second rack is fixedly connected to the inner wall of the second through hole, a first long block is slidably connected to the inner wall of the cavity, a third rack is fixedly connected to the side wall of the first long block, the side wall of the first long block is rotatably connected to the second gear, the inner wall of the cavity is slidably connected to the second long block, the side wall of the second long block is fixedly connected to the fourth rack, the side wall of the second long block is fixedly connected to a conductive column, the side wall of the cavity is fixedly connected to a resistor sheet, and an alarm is installed on the side wall of the monitoring block; The rectangular block is provided with a lifting mechanism for improving monitoring accuracy, the lifting mechanism includes a rectangular frame fixedly connected to the top wall of the rectangular block, the inner wall of the rectangular frame is symmetrically provided with slide grooves, the inner wall of each slide groove is sealed and slidably connected to a slide plate, the top wall of the slide plate is fixedly connected to a support column, the end of the support column away from the slide plate is fixedly connected to a brush, the side wall of the support column is fixedly installed with a nozzle, the inner wall of the second long strip is provided with a sliding cavity, the inner wall of the sliding cavity is sealed and slidably connected to a sliding plug, the side wall of the sliding plug is fixedly connected to a connecting rod, the end of the connecting rod away from the sliding plug passes through the inner wall of the second long strip and is fixedly connected to the U-shaped plate; The side wall of the monitoring block is fixedly connected to a liquid storage tank, and the inner wall of the sliding cavity is fixedly connected to a one-way liquid inlet pipe and two one-way liquid outlet pipes. The other end of the one-way liquid inlet pipe passes through the inner wall of the rectangular block and is fixedly connected to the liquid storage tank. The other end of the one-way liquid outlet pipe passes through the inner wall of the rectangular block and is fixedly connected to the inner wall of a corresponding chute. The inner wall of the chute is fixedly connected to the nozzle through a connecting pipe, and the slide is elastically connected to the inner wall of the chute through a return spring. The lifting mechanism also includes a rectangular groove formed in the top wall of the monitoring block, a sliding rack being slidably connected to the inner wall of the rectangular groove, a scraper being fixedly connected to the top of the sliding rack, a bottom end of the sliding rack being elastically connected to the inner wall of the rectangular groove via a tension spring, a wedge-shaped block being slidably connected to the side wall of the rectangular groove, the other end of the wedge block extending into the interior of the cavity, a wedge-shaped hole being formed in the side wall of the other end of the wedge block, and a slot being formed in the side wall of the sliding rack; The bottom wall of the second long strip is fixedly connected to a wedge-shaped plate, the wedge-shaped plate and the inner wall of the wedge-shaped hole are embedded and slidably matched, and one end of the wedge-shaped block is inserted into the slot; The inner wall of the monitoring block is provided with a T-shaped slot connected to the inner wall of the rectangular slot. The inner wall of the T-shaped slot is slidingly connected to a spur rack. The inner wall of the T-shaped slot is rotatably connected to a transmission gear. The transmission gear and the sliding rack are meshed together. The transmission gear and the spur rack are meshed together. The bottom wall of the spur rack is fixedly connected to a rubber sleeve. The side wall of the monitoring block is fixedly connected to an L-shaped frame. The inner wall of the L-shaped frame is rotatably connected to a support plate. The end of the rubber sleeve away from the spur rack is fixedly connected to the support plate. The inside of the rubber sleeve is filled with electrorheological fluid.

2. The automatic settlement monitoring device for tunnel engineering according to claim 1, characterized in that: The first rack is meshed with the first gear, the third rack is meshed with the first gear, the second rack is meshed with the second gear, and the fourth rack is meshed with the second gear.

3. The automatic settlement monitoring device for tunnel engineering according to claim 1, characterized in that: The conductive column, the resistor sheet and the alarm are electrically connected. The sliding frame is in an inverted cross-shaped structure. The bottom wall of the sliding frame is symmetrically fixedly connected with an electric pulley.

4. The automatic settlement monitoring device for tunnel engineering according to claim 1, characterized in that: The electric slider is slidably matched with the side wall of the sliding frame, the electric slider is fixedly connected to the monitoring block, a tension spring is fixed to the inner wall of the bottom of the U-shaped plate, and the other end of the tension spring is fixedly connected to the inner wall of the cavity.

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