Safety monitoring device based on tunnel construction

Abstract

The invention discloses a safety monitoring device based on tunnel construction, and relates to the technical field of laser safety detection, driving motors are symmetrically and fixedly mounted at the two ends of the interior of a fixed box, output shafts of the two driving motors are fixedly connected with electromagnetic blocks, and mounting frames are fixedly mounted at the positions, corresponding to the two driving motors, of the two inner walls of the fixed box; an electromagnetic block is used for adsorbing a metal round block, then a driving motor can drive a rotating shaft and a rotating block to rotate, guide rollers are used for being attached to the inner wall of a constructed tunnel, the guide rollers on the two sides play a role in limiting and guiding the whole equipment, and when a movable base moves forwards, the guide rollers are attached to the inner wall of the tunnel all the time; the whole equipment is always kept in the middle of the tunnel, equipment deviation or collision caused by the fact that the equipment encounters a bent position in the advancing process is prevented, workers do not need to monitor the advancing track all the time, and use is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of laser safety detection, and in particular to a safety monitoring device based on tunnel construction. Background Art

[0002] Tunnel engineering is a building built underground or underwater or in a mountain to lay railways or build roads for motor vehicles to pass. According to its location, it can be divided into three categories: mountain tunnel engineering, underwater tunnel engineering and urban tunnel engineering. Mountain tunnel engineering is to pass under mountains or hills to shorten the distance and avoid steep slopes. Underwater tunnel engineering is to pass under rivers or straits or under the sea. Urban tunnel engineering is to pass underground in cities to meet the needs of railways passing through large cities. The construction process of a tunnel mainly includes tunnel planning, surveying, design, penetration control measurement and construction. During the construction of a tunnel, cracks may appear in the tunnel, and the expansion of the cracks will cause the tunnel to crack. The tunnel is large and prone to collapse, which affects the safety of the workers. In order to ensure the safety of the project, it is necessary to patrol the tunnel regularly. However, manual patrol of the tunnel is easily affected by subjective factors, the field of vision is limited, and the observation results may be biased. Different patrol personnel may have different judgments on the same problem, resulting in inconsistent results. For this reason, a Chinese patent discloses a tunnel construction safety monitoring device with application number 202311171139.8. The patent can monitor the changes of the ground in real time by setting up a detection mechanism, which enables tunnel managers to understand the depression or bulge of the ground in time so as to take corresponding maintenance and treatment measures;

[0003] However, the current equipment lacks a limiting and guiding mechanism when moving in the tunnel, and cannot adapt to some curves in the tunnel, causing the equipment to easily go astray or collide. Workers are required to monitor and adjust the direction of travel at all times, which increases the workload. In addition, cracks or depressions on the inner wall of the tunnel require workers to discover and observe them visually, which is prone to mistakes. Therefore, the present invention provides a safety monitoring device based on tunnel construction to meet people's needs. Summary of the invention

[0004] The present invention provides a safety monitoring device based on tunnel construction, which can effectively solve the problem that the equipment proposed in the above background technology lacks a limiting and guiding mechanism when moving in the tunnel, and cannot adapt to some curves in the tunnel, causing the equipment to easily go astray or collide, requiring staff to monitor and adjust the direction of travel at all times, increasing the workload, and any cracks or depressions on the inner wall of the tunnel require staff to discover and observe visually, which is prone to errors.

[0005] To achieve the above object, the present invention provides the following technical solution: a safety monitoring device based on tunnel construction, comprising a mobile base, a fixed box is fixedly installed on the top of the mobile base, a flip cover is rotatably installed in the middle of the top of the fixed box, and a guide adjustment mechanism is arranged inside the fixed box;

[0006] The guide adjustment mechanism includes a drive motor;

[0007] The two ends of the fixed box are symmetrically fixedly installed with driving motors, and the output shafts of the two driving motors are fixedly connected with electromagnetic blocks, and mounting brackets are fixedly installed at the two inner walls of the fixed box and the corresponding positions of the two driving motors, and a rotating shaft is rotatably installed in the middle of the mounting bracket, and a metal round block is fixedly connected to the bottom end of the rotating shaft, and a rotating block is fixedly installed in the middle of the rotating shaft, and one end of the rotating block is fixedly connected to a guide frame, and a moving rod is movably connected to the middle of the guide frame, and mounting holes are equidistantly opened in the middle of the guide frame, and mounting bolts are equidistantly installed in the middle of the moving rod, and one end of the moving rod is fixedly connected to a fixed bracket, and a rotating screw is movably installed in the middle of the fixed bracket, and one end of the rotating screw is fixedly connected to a mounting seat, and a guide roller is installed in the middle of one end of the mounting seat;

[0008] The top of the guide frame is fixedly connected to a connecting frame, one end of the connecting frame is fixedly connected to a buffer spring, one end of the buffer spring is fixedly connected to an extrusion block, two sides of the extrusion block are symmetrically fixedly connected to guide cylinders, one end of the extrusion block is movably connected to a fixed frame, two ends of the fixed frame are symmetrically provided with guide grooves, a movable rod is movably installed through the middle of the fixed frame, one end of the movable rod is fixedly connected to a connecting block, one end of the fixed frame is fixedly connected to a connecting spring, and the other end of the movable rod is fixedly installed with a pressure sensor.

[0009] According to the above technical solution, the rotating shaft is located directly above the driving motor, and the top end of the electromagnetic block fits with the bottom end of the metal round block;

[0010] The mounting bolt corresponds to the mounting hole position, the guide frame and the moving rod are fixedly connected by the mounting bolt, a threaded hole is opened at the end of the moving rod, the end of the rotating screw extends into the threaded hole, and the rotating screw and the fixed frame and the moving rod are all connected by threads.

[0011] According to the above technical solution, the guide cylinder movably penetrates the guide groove, and the end of the guide cylinder is fixedly connected to a limiting round block, and the diameter of the limiting round block is greater than the height of the guide groove;

[0012] The extrusion block is tightly attached to the end of the pressure sensor, one end of the connection spring is connected to the connection block, and the connection spring is sleeved on the surface of the movable rod.

[0013] According to the above technical solution, a positioning rod is symmetrically fixedly installed in the middle of the fixed box, a rotating block is rotatably installed on the top of the positioning rod, and positioning notches are symmetrically opened on the sides of the rotating block. One end of the top of the positioning rod is fixedly connected to a limiting block, and a limiting groove is opened on the top of the limiting block. A limiting plug-in block is embedded and installed inside the limiting groove. One end of the rotating block is fixedly connected to a supporting arc plate, and positioning screw holes are equidistantly opened in the middle of the supporting arc plate, and a positioning stud is movably installed in the middle of the positioning screw hole.

[0014] A fixing seat is fixedly installed in the middle of one end of the top of the fixing box, a rotating rod is rotatably installed in the middle of the fixing seat, a spherical camera is fixedly installed on the top of the middle of the rotating rod, one end of the rotating rod is fixedly connected to a driving gear, a guide plate is fixedly installed at the top of the fixing box at one side of the fixing seat, an electric push rod is fixedly installed at one end of the guide plate, and one end of the electric push rod is fixedly connected to a driving rack.

[0015] According to the above technical solution, the limiting plug is movably embedded in the middle of a positioning notch, the bottom end of the fixing frame is tightly attached to the top end of the supporting arc plate, and the top of the positioning stud passes through the positioning screw hole and is tightly attached to one end of the bottom of the fixing frame.

[0016] According to the above technical solution, the driving rack is movably connected to the middle part of the guide plate, the driving gear is located directly above the driving rack, the driving gear and the driving rack are meshed with each other, and the signal input end of the electric push rod is connected to the signal output end of the pressure sensor.

[0017] According to the above technical solution, a ground foreign matter monitoring mechanism is fixedly installed at one end of the fixed box;

[0018] The ground foreign matter monitoring mechanism comprises a fixing bracket;

[0019] A fixed bracket is fixedly installed at one end of the fixed box, and a connecting long plate is fixedly installed in the middle of one end of the two moving rods, and the bottom ends of the fixed bracket, the two connecting long plates and the two guide frames are fixedly connected with a connecting plate, and hydraulic telescopic rods are symmetrically fixedly installed at both ends of the bottom of the connecting plate, and a lifting plate is fixedly connected between the bottom ends of the two hydraulic telescopic rods, and a lifting frame is fixedly installed at the bottom end of the lifting plate, and guide square holes are equidistantly provided at the bottom of the lifting frame, and contact buttons are equidistantly fixedly installed at the middle of the lifting frame at one side of the guide square holes, and a movable square rod is movably installed in the middle of the guide square hole, and a fitting block is fixedly connected to the top of the movable square rod, and a mounting base is fixedly connected to the bottom end of the movable square rod, and a ball bearing is movably embedded in the bottom of the mounting base;

[0020] One end of the lifting plate is fixedly connected to a fixed long plate, both ends of the fixed long plate are symmetrically fixedly bonded with buffer pads, the ends of the buffer pads are fixedly connected to anti-collision long plates, and a vibration sensor is fixedly installed on the top of one end of the fixed long plate;

[0021] Adjustment motors are symmetrically fixedly installed at both ends of the top of the fixed box, the output shaft of the adjustment motor is fixedly connected to a rotating seat, and an observation camera is fixedly installed on the top of the rotating seat.

[0022] According to the above technical solution, the number of the lifting frames and connecting plates is five, one of the five lifting frames is located at the end of the moving base in the forward direction, and four of the five lifting frames are symmetrically distributed on both sides of the fixed box.

[0023] According to the above technical solution, one end of the fitting block extends to above the contact button, and the distance between the fitting block and the mounting seat is greater than the thickness of the bottom of the lifting frame.

[0024] According to the above technical solution, the end of the vibration sensor is in contact with the inner end surface of the anti-collision long plate, the horizontal plane height of the bottom end of the anti-collision long plate is lower than the horizontal plane height of the bottom end of the lifting frame, and the signal output end of the vibration sensor is connected to the signal input end of the adjustment motor.

[0025] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0026] 1. A guide adjustment mechanism is provided, which uses an electromagnetic block to adsorb the metal round block, and then the driving motor can drive the rotating shaft and the rotating block to rotate, and adjust the position of the guide frame and the moving rod, so that the guide frame and the moving rod are rotated outward and extended, so that the guide rollers can be used to fit the inner wall of the tunnel under construction. The guide rollers on both sides start the limit guide function for the whole equipment. When the mobile base moves forward, the guide rollers are always in contact with the inner wall of the tunnel, so that the whole equipment is always kept in the middle of the tunnel, preventing the equipment from offsetting or colliding when encountering a bend during the forward movement. There is no need for staff to monitor the forward trajectory at all times, and it is more convenient to use;

[0027] At the same time, the moving rod and the guide frame can slide relative to each other, which is convenient for adjusting the position of the moving rod, so that the length of the guide frame and the moving rod after splicing meets the width of the tunnel, with greater flexibility and adaptability to tunnel construction monitoring of various sizes and specifications. The rotating screw and the mounting seat can be rotated and adjusted to adjust the spacing between the guide roller and the moving rod. After the position of the guide frame and the moving rod is adjusted, the position of the guide roller is fine-tuned so that the guide roller can be just close to the inner wall of the tunnel.

[0028] 2. The position of the fixed frame is supported and limited by the supporting arc plate and the positioning studs to keep its position unchanged, while the connecting frame is fixedly connected to the guide frame, and the buffer spring supports the guide frame. Then, the pressure sensor can be used to monitor the force on the guide frame and the moving rod. The guide roller is close to the inner wall of the tunnel, which exerts a certain pressure on the pressure sensor. When cracks or depressions appear on the inner wall of the tunnel, the guide roller is embedded in the cracks and depressions, which will cause the pressure sensed by the pressure sensor to change. The staff can capture the situation of the inner wall of the tunnel in time. There is no need to monitor all the time, and they can grasp the situation in time when cracks and other situations appear, which makes the monitoring method more convenient.

[0029] At the same time, the supporting arc plate and the rotating block can rotate around the positioning rod, and can be rotated outward and stored in the fixed box when idle. The positioning notch and the limit groove correspond to each other, and the limit plug block can be inserted to limit and fix the rotating block.

[0030] 3. The spherical camera can be used to monitor the situation inside the tunnel. When cracks and depressions are detected on the inner wall of the tunnel, the electric push rod can pull the drive rack to move in the middle of the guide plate, engage and push the drive gear, so that the rotating rod and the spherical camera rotate in the corresponding direction, thereby accurately capturing the situation of the inner wall of the tunnel, which provides great convenience for the staff to view remotely.

[0031] 4. A ground foreign body monitoring mechanism is provided. The height of the lifting plate and the lifting frame can be adjusted by a hydraulic telescopic rod, so that the ball is close to the ground when the equipment is moving inside the tunnel, and the flatness of the ground is monitored. When there are depressions and cracks in the ground, the ball will sink, and then the movable square rod and the fitting block will drop. The condition of the ball is monitored by sensing whether the contact button and the fitting block are in contact, so that the staff can grasp the situation in time when the ground is depressed. The front end of the fixed box, the guide frame and the bottom of the moving rod are all provided with structures such as ball bearings, which are spliced ​​and expanded to meet the overall range of the tunnel ground, prevent the blind spots of ground monitoring after the moving rod is extended or tilted, and the monitoring method is more accurate.

[0032] 5. The anti-collision long board plays a protective role when the equipment moves forward. The vibration signal generated when colliding with foreign objects will be captured by the vibration sensor, and then the inclination angle of the observation camera will be adjusted to make it face downward to the ground to capture foreign objects. The collision of the mechanism is used to detect foreign objects. The detection method is more accurate and convenient, preventing foreign objects such as soil or stones in the tunnel that are of the same material as the ground structure from falling and cannot be classified and captured by infrared cameras.

[0033] To sum up, by combining the guide adjustment mechanism and the ground foreign object monitoring mechanism, the inner wall and the ground of the tunnel can be monitored simultaneously, and the scope of use can be adjusted according to the size specifications of the tunnel, and the scope of application is wider. The bottom of the guide frame and the moving rod are equipped with ball bearings and anti-collision long plates for ground monitoring, which cooperate and adapt to each other, so that the ground monitoring mechanism can meet the deployment range of the guide frame and the moving rod, and the use method is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0035] In the attached picture:

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the installation structure of the lifting frame of the present invention;

[0038] Figure 3 It is a schematic diagram of the installation structure of the supporting arc plate of the present invention;

[0039] Figure 4 It is a schematic diagram of the installation structure of the driving gear of the present invention;

[0040] Figure 5 It is a schematic diagram of the installation structure of the drive motor of the present invention;

[0041] Figure 6 It is a structural schematic diagram of the guide adjustment mechanism of the present invention;

[0042] Figure 7 It is a schematic diagram of the installation structure of the rotating block of the present invention;

[0043] Figure 8 It is a schematic diagram of the installation structure of the vibration sensor of the present invention;

[0044] Fig. 9 It is a structural schematic diagram of the ground foreign matter monitoring mechanism of the present invention;

[0045] Numbers in the figure: 1, mobile base; 2, fixed box; 3, flip cover;

[0046] 4. Guide adjustment mechanism; 401. Drive motor; 402. Electromagnetic block; 403. Mounting frame; 404. Rotating shaft; 405. Metal round block; 406. Rotating block; 407. Guide frame; 408. Moving rod; 409. Mounting hole; 410. Mounting bolt; 411. Fixed frame; 412. Rotating screw; 413. Mounting seat; 414. Guide roller; 415. Connecting frame; 416. Buffer spring; 417. Extrusion block; 418. Guide cylinder; 419. Fixed frame; 420. Guide groove ; 421, movable rod; 422, connecting block; 423, connecting spring; 424, pressure sensor; 425, positioning rod; 426, rotating block; 427, positioning notch; 428, limiting block; 429, limiting groove; 430, limiting plug; 431, supporting arc plate; 432, positioning screw hole; 433, positioning stud; 434, fixing seat; 435, rotating rod; 436, dome camera; 437, driving gear; 438, guide plate; 439, electric push rod; 440, driving rack;

[0047] 5. Ground foreign body monitoring mechanism; 501. Fixed bracket; 502. Connecting long board; 503. Connecting board; 504. Hydraulic telescopic rod; 505. Lifting plate; 506. Lifting frame; 507. Guide square hole; 508. Contact button; 509. Movable square rod; 510. Fitting block; 511. Mounting seat; 512. Ball bearing; 513. Fixed long board; 514. Buffer pad; 515. Anti-collision long board; 516. Vibration sensor; 517. Adjustment motor; 518. Rotating seat; 519. Observation camera. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0049] Example: Figure 1-9 As shown, the present invention provides a technical solution, a safety monitoring device based on tunnel construction, comprising a mobile base 1, a fixed box 2 is fixedly installed on the top of the mobile base 1, a flip cover 3 is rotatably installed in the middle of the top of the fixed box 2, and a guide adjustment mechanism 4 is arranged inside the fixed box 2;

[0050] The guide adjustment mechanism 4 includes a drive motor 401;

[0051] The driving motors 401 are symmetrically fixedly installed at both ends of the fixed box 2, and the output shafts of the two driving motors 401 are fixedly connected with the electromagnetic blocks 402. The mounting frames 403 are fixedly installed at the positions corresponding to the two inner walls of the fixed box 2 and the two driving motors 401. A rotating shaft 404 is rotatably installed in the middle of the mounting frame 403, and a metal round block 405 is fixedly connected to the bottom end of the rotating shaft 404. The rotating shaft 404 is located directly above the driving motor 401, and the top of the electromagnetic block 402 and the bottom end of the metal round block 405 are fitted together. A rotating block 406 is fixedly installed in the middle of the rotating shaft 404, and one end of the rotating block 406 is fixedly connected with a guide frame 407, and a moving rod 408 is movably connected to the middle of the guide frame 407. Mounting holes 409 are equidistantly opened in the middle of the guide frame 407, and mounting bolts 410 are equidistantly installed in the middle of the moving rod 408. One end of the moving rod 408 is fixedly connected with a fixed frame 411. A rotating screw 412 is movably installed in the middle of the frame 411, and one end of the rotating screw 412 is fixedly connected to a mounting seat 413, and a guide roller 414 is installed in the middle of one end of the mounting seat 413. The electromagnetic block 402 is used to adsorb the metal round block 405, and then the driving motor 401 can drive the rotating shaft 404 and the rotating block 406 to rotate, and adjust the position of the guide frame 407 and the moving rod 408, so that the guide frame 407 and the moving rod 408 are rotated and extended outward, so that the guide roller 414 can be used to fit the inner wall of the tunnel under construction. The guide rollers 414 on both sides start the limit guiding function for the whole device. When the mobile base 1 moves forward, the guide rollers 414 are always in contact with the inner wall of the tunnel, so that the whole device is always kept in the middle of the tunnel, preventing the device from offsetting or colliding when encountering a bend during the forward movement. There is no need for the staff to monitor the forward trajectory at all times, and it is more convenient to use.

[0052] At the same time, the movable rod 408 and the guide frame 407 can slide relative to each other, so that the position of the movable rod 408 can be adjusted conveniently, so that the length of the guide frame 407 and the movable rod 408 after being spliced ​​meets the width of the tunnel, and the flexibility is stronger, which is suitable for tunnel construction monitoring of various sizes and specifications, and the rotating screw 412 and the mounting seat 413 can be rotated and adjusted to adjust the spacing between the guide roller 414 and the movable rod 408. After the position of the guide frame 407 and the movable rod 408 is adjusted, the position of the guide roller 414 is finely adjusted, so that the guide roller 414 can be just close to the inner wall of the tunnel;

[0053] The mounting bolt 410 corresponds to the mounting hole 409, and the guide frame 407 and the moving rod 408 are fixedly connected by the mounting bolt 410. The end of the moving rod 408 is provided with a threaded hole, and the end of the rotating screw 412 extends into the threaded hole. The rotating screw 412 and the fixing frame 411 and the moving rod 408 are all connected by threads.

[0054] The top of the guide frame 407 is fixedly connected with a connecting frame 415, one end of the connecting frame 415 is fixedly connected with a buffer spring 416, one end of the buffer spring 416 is fixedly connected with an extrusion block 417, both sides of the extrusion block 417 are symmetrically fixedly connected with guide cylinders 418, one end of the extrusion block 417 is movably connected with a fixed frame 419, both ends of the fixed frame 419 are symmetrically provided with guide grooves 420, a movable rod 421 is movably installed through the middle of the fixed frame 419, one end of the movable rod 421 is fixedly connected with a connecting rod 421, and a connecting rod 421 is fixedly connected with a connecting rod 421. Block 422, one end of the fixed frame 419 is fixedly connected with a connecting spring 423, the other end of the movable rod 421 is fixedly installed with a pressure sensor 424, the guide cylinder 418 is movable through the guide groove 420, the end of the guide cylinder 418 is fixedly connected with a limited position circular block, the diameter of the limited position circular block is greater than the height of the guide groove 420, the extrusion block 417 is closely attached to the end of the pressure sensor 424, one end of the connecting spring 423 is connected to the connecting block 422, and the connecting spring 423 is sleeved on the surface of the movable rod 421;

[0055] A positioning rod 425 is symmetrically fixedly installed in the middle of the fixed box 2, and a rotating block 426 is rotatably installed on the top of the positioning rod 425. Positioning notches 427 are symmetrically provided on the sides of the rotating block 426. One end of the top of the positioning rod 425 is fixedly connected to a limiting block 428. A limiting groove 429 is provided on the top of the limiting block 428. A limiting plug 430 is embedded and installed inside the limiting groove 429. One end of the rotating block 426 is fixedly connected to a supporting arc plate 431. Positioning screw holes 432 are equidistantly provided in the middle of the supporting arc plate 431. A positioning stud 433 is movably installed in the middle of the positioning screw hole 432. The limiting plug 430 is movably embedded in the middle of a positioning notch 427. The bottom end of the fixed frame 419 is tightly attached to the top of the supporting arc plate 431. The top of the positioning stud 433 passes through the positioning screw hole 432 and is tightly attached to At one end of the bottom of the fixed frame 419, the support arc plate 431 and the positioning stud 433 are used to support and limit the position of the fixed frame 419, so that its position remains unchanged, and the connecting frame 415 is fixedly connected to the guide frame 407, and the buffer spring 416 supports the guide frame 407, and then the pressure sensor 424 can be used to monitor the force exerted on the guide frame 407 and the moving rod 408. The guide roller 414 is close to the inner wall of the tunnel, which exerts a certain pressure on the pressure sensor 424. When cracks or depressions appear on the inner wall of the tunnel, the guide roller 414 is embedded in the cracks and depressions, which causes the pressure sensed by the pressure sensor 424 to change. The staff can capture the situation of the inner wall of the tunnel in time, and can grasp the situation in time when cracks and other situations occur without constant monitoring, and the monitoring method is more convenient.

[0056] At the same time, the supporting arc plate 431 and the rotating block 426 can rotate around the positioning rod 425, and can be rotated outwards and stored inside the fixed box 2 when idle, and the rotating block 426 can be fixed by inserting the limiting plug block 430 while the positioning notch 427 and the limiting groove 429 correspond to each other;

[0057] A fixing seat 434 is fixedly installed in the middle of one end of the top of the fixing box 2, a rotating rod 435 is rotatably installed in the middle of the fixing seat 434, a dome camera 436 is fixedly installed on the top of the middle of the rotating rod 435, one end of the rotating rod 435 is fixedly connected to a driving gear 437, a guide plate 438 is fixedly installed on the top of the fixing box 2 at one side of the fixing seat 434, an electric push rod 439 is fixedly installed on one end of the guide plate 438, and a driving rack 440 is fixedly connected to one end of the electric push rod 439, and the driving rack 440 is movably connected to the middle of the guide plate 438, and the driving gear 437 is located directly opposite to the driving rack 440. At the top, the driving gear 437 and the driving rack 440 are meshed with each other, and the signal input end of the electric push rod 439 is connected to the signal output end of the pressure sensor 424. The situation inside the tunnel can be monitored by video using the ball camera 436. When cracks and depressions are detected on the inner wall of the tunnel, the electric push rod 439 can pull the driving rack 440 to move in the middle of the guide plate 438, meshing and pushing the driving gear 437, so that the rotating rod 435 and the ball camera 436 rotate in the corresponding direction, thereby accurately capturing the situation of the inner wall of the tunnel, which provides great convenience for the staff to view remotely;

[0058] A ground foreign matter monitoring mechanism 5 is fixedly mounted on one end of the fixed box 2;

[0059] The ground foreign matter monitoring mechanism 5 includes a fixing bracket 501;

[0060] A fixed bracket 501 is fixedly installed at one end of the fixed box 2, and a connecting long plate 502 is fixedly installed in the middle of one end of the two moving rods 408. The bottom ends of the fixed bracket 501, the two connecting long plates 502 and the two guide frames 407 are fixedly connected with a connecting plate 503. The two ends of the bottom of the connecting plate 503 are symmetrically fixedly installed with hydraulic telescopic rods 504. A lifting plate 505 is fixedly connected between the bottom ends of the two hydraulic telescopic rods 504. A lifting frame 506 is fixedly installed at the bottom end of the lifting plate 505. The lifting frame 506 and the connecting plate 503 are fixedly installed. There are five lifting frames 506, one of which is located at the end of the moving base 1 in the forward direction, and four of the five lifting frames 506 are symmetrically distributed on both sides of the fixed box 2. The bottom of the lifting frame 506 is equidistantly provided with guide square holes 507, and the middle of the lifting frame 506 is equidistantly fixedly installed with contact buttons 508 at one side of the guide square hole 507. A movable square rod 509 is movably installed in the middle of the guide square hole 507, and the top of the movable square rod 509 is fixedly connected with a fitting block 510, and the bottom of the movable square rod 509 is fixed. The mounting base 511 is connected, and the bottom of the mounting base 511 is movably embedded with a ball 512. One end of the fitting block 510 extends to the top of the contact button 508. The distance between the fitting block 510 and the mounting base 511 is greater than the thickness of the bottom of the lifting frame 506. The height of the lifting plate 505 and the lifting frame 506 can be adjusted by using the hydraulic telescopic rod 504, so that the ball 512 is close to the ground when the equipment is walking inside the tunnel, and the flatness of the ground is monitored. When there are depressions and cracks in the ground, it will cause the ball 512 to The movable square rod 509 and the fitting block 510 sink, and the condition of the ball 512 is monitored by sensing whether the contact button 508 and the fitting block 510 are fitted, so that the staff can grasp the situation in time when the ground is sunken. The front end of the fixed box 2, the guide frame 407 and the bottom of the movable rod 408 are all provided with mechanisms such as the ball 512, so that they can be spliced ​​and expanded to meet the overall range of the tunnel ground, and prevent the mobile rod 408 from extending or tilting. The blind spot of ground monitoring occurs after the tilt adjustment, and the monitoring method is more accurate;

[0061] One end of the lifting plate 505 is fixedly connected to a fixed long plate 513, and both ends of the fixed long plate 513 are symmetrically fixedly bonded with buffer pads 514, and the ends of the buffer pads 514 are fixedly connected to anti-collision long plates 515, and a vibration sensor 516 is fixedly installed on the top of one end of the fixed long plate 513;

[0062] Adjustment motors 517 are symmetrically fixedly installed at both ends of the top of the fixed box 2, and the output shaft of the adjustment motor 517 is fixedly connected to a rotating seat 518, and an observation camera 519 is fixedly installed on the top of the rotating seat 518. The end of the vibration sensor 516 is in contact with the inner end surface of the anti-collision long plate 515, and the horizontal plane height of the bottom end of the anti-collision long plate 515 is lower than the horizontal plane height of the bottom end of the lifting frame 506. The signal output end of the vibration sensor 516 is connected to the signal input end of the adjustment motor 517. The anti-collision long plate 515 plays a protective role when the equipment moves forward. When colliding with foreign objects, the vibration signal generated will be captured by the vibration sensor 516, and then the inclination angle of the observation camera 519 is adjusted to make it face downward to the ground to capture foreign objects, and the collision of the mechanism is used to detect foreign objects. The detection method is more accurate and convenient, which prevents foreign objects such as soil or stones in the tunnel that are of the same material as the ground structure from falling and cannot be classified and captured by infrared cameras.

[0063] The working principle and use process of the present invention are as follows: First, the staff controls the equipment to move to the tunnel entrance through the mobile base 1, opens the flip cover 3, pulls out the limit plug 430 upwards, rotates the support arc plate 431 and the rotating block 426, rotates them 90 degrees and extends out from the inside of the fixed box 2, and another positioning notch 427 corresponds to the position of the limit slot 429. The limit plug 430 is inserted into the positioning notch 427 and the limit slot 429 to limit and fix the support arc plate 431. The electromagnetic block 402 is energized to generate magnetism to adsorb and fix the metal round block 405, and the drive motor 401 is started to drive the electric The magnetic block 402, the metal round block 405 and the rotating shaft 404 rotate, so that the guide frame 407 and the moving rod 408 rotate and extend outward from the inside of the fixed box 2, and the fixed frame 419 is placed on the surface of the supporting arc plate 431. According to the size specifications of the tunnel, the mounting bolts 410 are screwed to loosen the fixing of the moving rod 408 and the guide frame 407, and the moving rod 408 is pulled to slide along the guide frame 407, so that the guide roller 414 is close to the inner wall of the tunnel, and then the moving rod 408 is fixed by the mounting bolts 410, and the guide roller 414 is closely attached to the inner wall of the tunnel by rotating the rotating screw 412 and the mounting seat 413;

[0064] Then, according to the position of the fixed frame 419 on the top of the supporting arc plate 431, the positioning stud 433 is rotated from the bottom and screwed into the corresponding positioning screw hole 432. The positioning stud 433 is tightly attached to the surface of one end of the fixed frame 419, which plays a role of limiting and blocking the fixed frame 419. The guide frame 407 and the moving rod 408 maintain a certain inclination angle and are distributed on both sides of the fixed box 2. The electromagnetic block 402 is powered off so that it no longer absorbs the metal round block 405, so that the moving base 1 and the fixed box 2 are located in the middle of the tunnel. At this time, the positions of the guide frame 407 and the connecting frame 415 remain unchanged, and the extrusion block 417 is tightly attached to the end of the pressure sensor 424, causing a certain pressure to it. The buffer spring 416 and the connecting spring 423 both play a role of buffer protection, so that the pressure sensor 424 will not be damaged by excessive extrusion;

[0065] Next, the hydraulic telescopic rod 504 is extended downward to push the lifting plate 505 and the lifting frame 506 downward, so that the ball 512 contacts the ground. When the hydraulic telescopic rod 504 continues to descend, the ball 512 and the movable square rod 509 are pushed upward, so that the fitting block 510 is away from the contact button 508, and the fixed long plate 513 and the anti-collision long plate 515 are both synchronously descended, so that the bottom end of the anti-collision long plate 515 is close to the ground.

[0066] The staff controls the mobile base 1 to enter the tunnel and continue to move forward. The guide rollers 414 on both sides are always attached to the inside of the tunnel, which plays the role of limit monitoring. During the movement, the tunnel bends, which makes the two guide rollers 414 have different forces. Then, the inclination angles of the guide frame 407 and the mobile rod 408 change with the force of the inner wall of the tunnel squeezing the guide rollers 414. The squeezing force of the connecting frame 415 and the squeezing block 417 on the pressure sensor 424 changes. The pressure sensor 424 transmits the signal change to the staff. The staff adjusts the moving track and direction of the mobile base 1 according to the image captured by the dome camera 436. There is no need to pay attention to its movement at all times. It is more convenient to adjust according to the signal change transmitted by the pressure sensor 424.

[0067] At the same time, when cracks or depressions appear on the inner wall of the tunnel, the guide roller 414 will sink inward into the cracks and depressions when it moves to the corresponding position, and the inclination angles of the guide frame 407 and the moving rod 408 will further change, so that the force of the pressure sensor 424 being squeezed by the squeezing block 417 will change. The pressure sensor 424 will transmit the change of the pressure signal to the staff, reminding the staff that there is a problem on the inner wall of the tunnel. The control device will no longer move forward, and the electric push rod 439 will be controlled to extend or contract, driving the drive rack 440 to move along the guide plate 438, meshing with the drive gear 437 and driving it to rotate, so that the dome camera 436 will rotate to the side where the problem occurs. The staff can remotely understand the situation of the inner wall of the tunnel through the dome camera 436, so as to carry out timely remediation later.

[0068] During the forward movement of the equipment, the anti-collision long plate 515 is spliced ​​and intercepted at the front end of the equipment. When there are foreign objects on the ground in front (stones, soil blocks falling from the top of the tunnel, or foreign objects rolling down from the side), the anti-collision long plate 515 will first collide with the foreign objects and generate vibrations, and the vibration sensor 516 will capture the vibration signal and then transmit the signal to the staff to control the equipment to stop moving forward, adjust the motor 517 to drive the rotating seat 518 to rotate, so that the observation camera 519 is tilted toward the foreign objects encountered in front of the ground, and then the observation camera 519 can be controlled to face upward to capture the situation on the top of the tunnel and judge It can be determined whether the top has fallen, and the position of the problem can be marked in time for subsequent processing. At the same time, when the equipment moves forward, the ball 512 is always in contact with the ground. When the ground is flat, the ball 512 supports the movable square rod 509 and the bonding block 510, so that the bonding block 510 will not contact the contact button 508. If there is a depression or crack in the ground, the ball 512 will fall into the crack or depression during the forward movement of the equipment, and the movable square rod 509 and the bonding block 510 will descend, and the bonding block 510 will contact the contact button 508, transmitting the signal to the staff for subsequent processing.

[0069] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety monitoring device based on tunnel construction, comprising a mobile base (1), characterized in that: A fixed box (2) is fixedly mounted on the top of the mobile base (1), a flip cover (3) is rotatably mounted in the middle of the top of the fixed box (2), and a guide adjustment mechanism (4) is arranged inside the fixed box (2); The guide adjustment mechanism (4) comprises a drive motor (401); Drive motors (401) are symmetrically fixedly installed at both ends of the interior of the fixed box (2), and the output shafts of the two drive motors (401) are fixedly connected to electromagnetic blocks (402). Mounting frames (403) are fixedly installed at positions corresponding to the two inner walls of the fixed box (2) and the two drive motors (401). A rotating shaft (404) is rotatably installed in the middle of the mounting frame (403), and a metal round block (405) is fixedly connected to the bottom end of the rotating shaft (404). A rotating block (406) is fixedly installed in the middle of the rotating shaft (404), and one end of the rotating block (406) is fixedly connected to A guide frame (407) is provided, a moving rod (408) is movably connected in the middle of the guide frame (407), mounting holes (409) are equidistantly provided in the middle of the guide frame (407), mounting bolts (410) are equidistantly installed in the middle of the moving rod (408), one end of the moving rod (408) is fixedly connected to a fixing frame (411), a rotating screw (412) is movably installed in the middle of the fixing frame (411), one end of the rotating screw (412) is fixedly connected to a mounting seat (413), and a guide roller (414) is installed in the middle of one end of the mounting seat (413); The top of the guide frame (407) is fixedly connected to a connecting frame (415), one end of the connecting frame (415) is fixedly connected to a buffer spring (416), one end of the buffer spring (416) is fixedly connected to an extrusion block (417), two sides of the extrusion block (417) are symmetrically fixedly connected to guide cylinders (418), one end of the extrusion block (417) is movably connected to a fixed frame (419), two ends of the fixed frame (419) are symmetrically provided with guide grooves (420), a movable rod (421) is movably installed through the middle of the fixed frame (419), one end of the movable rod (421) is fixedly connected to a connecting block (422), one end of the fixed frame (419) is fixedly connected to a connecting spring (423), and the other end of the movable rod (421) is fixedly installed with a pressure sensor (424).

2. A safety monitoring device based on tunnel construction according to claim 1, characterized in that: The rotating shaft (404) is located directly above the driving motor (401), and the top end of the electromagnetic block (402) and the bottom end of the metal round block (405) are in contact with each other; The mounting bolt (410) corresponds to the position of the mounting hole (409); the guide frame (407) and the moving rod (408) are fixedly connected via the mounting bolt (410); a threaded hole is provided at the end of the moving rod (408); the end of the rotating screw (412) extends into the threaded hole; the rotating screw (412) and the fixing frame (411) and the moving rod (408) are all connected via threads.

3. A safety monitoring device based on tunnel construction according to claim 1, characterized in that: The guide cylinder (418) movably penetrates the guide groove (420), and the end of the guide cylinder (418) is fixedly connected to a limiting circular block, and the diameter of the limiting circular block is greater than the height of the guide groove (420); The extrusion block (417) is tightly attached to the end of the pressure sensor (424), one end of the connection spring (423) is connected to the connection block (422), and the connection spring (423) is sleeved on the surface of the movable rod (421).

4. A safety monitoring device based on tunnel construction according to claim 1, characterized in that: A positioning rod (425) is symmetrically fixedly installed in the middle of the interior of the fixed box (2), a rotating block (426) is rotatably installed on the top of the positioning rod (425), and a positioning notch (427) is symmetrically provided on the edge of the rotating block (426), one end of the top of the positioning rod (425) is fixedly connected to a limiting block (428), a limiting groove (429) is provided on the top of the limiting block (428), and a limiting plug block (430) is embedded and installed inside the limiting groove (429), one end of the rotating block (426) is fixedly connected to a supporting arc plate (431), and positioning screw holes (432) are equidistantly provided in the middle of the supporting arc plate (431), and a positioning stud (433) is movably installed in the middle of the positioning screw hole (432); A fixing seat (434) is fixedly installed in the middle of one end of the top of the fixing box (2), a rotating rod (435) is rotatably installed in the middle of the fixing seat (434), a spherical camera (436) is fixedly installed on the top of the middle of the rotating rod (435), one end of the rotating rod (435) is fixedly connected to a driving gear (437), a guide plate (438) is fixedly installed at the top of the fixing box (2) at a position on one side of the fixing seat (434), an electric push rod (439) is fixedly installed at one end of the guide plate (438), and one end of the electric push rod (439) is fixedly connected to a driving rack (440).

5. A safety monitoring device based on tunnel construction according to claim 4, characterized in that: The limiting plug (430) is movably embedded in the middle of a positioning notch (427), the bottom end of the fixing frame (419) is tightly attached to the top end of the supporting arc plate (431), and the top of the positioning stud (433) passes through the positioning screw hole (432) and is tightly attached to one end of the bottom of the fixing frame (419).

6. A safety monitoring device based on tunnel construction according to claim 4, characterized in that: The driving rack (440) is movably engaged with the middle part of the guide plate (438), the driving gear (437) is located directly above the driving rack (440), the driving gear (437) and the driving rack (440) are meshed with each other, and the signal input end of the electric push rod (439) is connected to the signal output end of the pressure sensor (424).

7. A safety monitoring device based on tunnel construction according to claim 4, characterized in that: A ground foreign matter monitoring mechanism (5) is fixedly mounted on one end of the fixed box (2); The ground foreign matter monitoring mechanism (5) comprises a fixing bracket (501); A fixed bracket (501) is fixedly installed at one end of the fixed box (2), a connecting long plate (502) is fixedly installed at the middle of one end of the two moving rods (408), a connecting plate (503) is fixedly connected to the bottom ends of the fixed bracket (501), the two connecting long plates (502) and the two guide frames (407), hydraulic telescopic rods (504) are symmetrically fixedly installed at both ends of the bottom of the connecting plate (503), a lifting plate (505) is fixedly connected between the bottom ends of the two hydraulic telescopic rods (504), and a lifting plate (505) is fixedly installed at the bottom end of the lifting plate (505). A lifting frame (506) is provided with guide square holes (507) at equal intervals at the bottom of the lifting frame (506); a contact button (508) is fixedly installed at equal intervals at a position on one side of the guide square hole (507) in the middle of the lifting frame (506); a movable square rod (509) is movably installed in the middle of the guide square hole (507); a fitting block (510) is fixedly connected to the top of the movable square rod (509); a mounting base (511) is fixedly connected to the bottom of the movable square rod (509); a ball bearing (512) is movably embedded and installed at the bottom of the mounting base (511); One end of the lifting plate (505) is fixedly connected to a fixed long plate (513), two ends of the fixed long plate (513) are symmetrically fixedly bonded with buffer pads (514), the ends of the buffer pads (514) are fixedly connected to anti-collision long plates (515), and a vibration sensor (516) is fixedly installed on the top of one end of the fixed long plate (513); Adjustment motors (517) are symmetrically fixedly mounted at both ends of the top of the fixed box (2); the output shaft of the adjustment motor (517) is fixedly connected to a rotating seat (518); and an observation camera (519) is fixedly mounted on the top of the rotating seat (518).

8. A safety monitoring device based on tunnel construction according to claim 7, characterized in that: The number of the lifting frames (506) and the connecting plates (503) is five, one of the five lifting frames (506) is located at the end of the moving base (1) in the forward direction, and four of the five lifting frames (506) are symmetrically distributed on both sides of the fixed box (2).

9. A safety monitoring device based on tunnel construction according to claim 7, characterized in that: One end of the fitting block (510) extends to the top of the contact button (508), and the distance between the fitting block (510) and the mounting seat (511) is greater than the thickness of the bottom of the lifting frame (506).

10. A safety monitoring device based on tunnel construction according to claim 7, characterized in that: The end of the vibration sensor (516) is in contact with the inner end surface of the anti-collision long plate (515), the horizontal plane height of the bottom end of the anti-collision long plate (515) is lower than the horizontal plane height of the bottom end of the lifting frame (506), and the signal output end of the vibration sensor (516) is connected to the signal input end of the adjustment motor (517).

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