Concrete bridge structure crack monitoring device

Abstract

The invention relates to the technical field of crack monitoring, discloses a concrete bridge structure crack monitoring device, and solves the problems that monitoring signal transmission is liable to be interfered and a monitoring structure is inconvenient to install. When the monitoring device is installed, the monitoring device is adjusted to be close to a to-be-installed position through a motor A, an electric lifting plate, a motor B, a lead screw B and an extension frame, the installation position is polished through a polishing part, and when an electric telescopic rod drives a movable block to move, dust is removed through air blowing, and meanwhile a sealing plate is driven to extrude a glue injection box to inject glue. A motor D drives a rotating frame to rotate, a magnetic plate E moves upwards to extrude air in an empty groove to drive a scraping plate to move and evenly scrape marble glue, finally, an electric telescopic rod is used for driving a variable-piece type joint meter body to ascend to complete fixation, and finally the purpose of facilitating installation of a monitoring structure while monitoring signals are stabilized is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of crack monitoring, and specifically to a crack monitoring device for concrete bridge structures. Background Art

[0002] The monitoring of cracks in concrete bridge structures is of great importance. By deploying devices such as strain gauge crack meters at key positions, the subtle changes in cracks can be sensed in real time. These monitoring means can accurately capture information such as crack width, length, and development trend. Combining with a data processing and analysis system, the original data can be transformed into intuitive results, providing key basis for the maintenance and reinforcement of the bridge, and ensuring the traffic safety and service life of the bridge.

[0003] The existing Chinese patent with the publication number CN118758189A discloses a bridge crack width tracking monitoring device, including an installation substrate and a monitoring component arranged on the installation substrate. The monitoring component includes a laser sensor, an ultrasonic sensor, a monitoring camera, a wireless transceiver, and a controller. The installation substrate includes a bottom plate and a side plate vertically arranged on one side of the bottom plate. Installation holes are evenly arranged at both ends of the bottom plate. It also includes a number of probe trigger components arranged on the side plate along the length direction of the side plate, which can reduce the energy consumption of the monitoring component and extend the working time of the monitoring component without affecting the monitoring effect. However, during the monitoring process, due to the interval and distance between the observation point and the monitoring point, the signal transmission process is easily interfered, affecting the signal reception effect. At the same time, when installing the monitoring structure, a crane or other lifting device is required to transport the installation personnel to the monitoring location, which is a relatively dangerous and cumbersome process. In addition, during installation, the worker needs to wait for the marble glue to completely solidify and fix, and the pungent smell of the marble glue also has an adverse impact on the health of the worker.

[0004] In view of the above problems, a crack monitoring device for concrete bridge structures is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a crack monitoring device for concrete bridge structures. By using this device for work, the problems that the monitoring signal transmission is easily interfered and the monitoring structure is inconvenient to install are solved.

[0006] To achieve the above object, the present invention provides the following technical solution: A crack monitoring device for a concrete bridge structure, including a control vehicle arranged on the bridge deck. One side of the control vehicle is fixedly connected with an installation mechanism for lowering and installing. One side of the installation mechanism is fixedly connected with an industrial camera. The bottom end of the installation mechanism is fixedly connected with a chassis. A telescopic frame is slidably connected inside the chassis. A rotating frame is arranged at the upper end of the telescopic frame. A polishing component for polishing the installation surface is fixedly connected to the upper surface of the rotating frame. A glue injection component for injecting glue and removing ash is slidably connected to the upper surface of the rotating frame. One side of the rotating frame is fixedly connected with a storage component. A strain gauge type crack meter main body for monitoring is arranged inside the storage component;

[0007] The surface of the control vehicle is fixedly connected with a control unit for crack monitoring. A signal receiving module for receiving signals is arranged inside the control unit. A signal processing module for processing signal information is arranged inside the control unit. A signal output module for feeding back detailed signals is also arranged inside the control unit.

[0008] Further, a wireless transmission module is arranged inside the signal receiving module. The wireless transmission module is signal-connected to a signal conditioning module. An amplification circuit module is arranged inside the signal conditioning module. A filtering module is also arranged inside the signal conditioning module. A strain calculation module is arranged inside the signal processing module. The strain calculation module is signal-connected to a crack width calculation module. The crack width calculation module is signal-connected to a local storage module. A data display module is arranged inside the signal output module. An early warning output module is also arranged inside the signal output module.

[0009] Further, the installation mechanism includes a flipping frame fixedly connected to one side of the control vehicle. One side of the flipping frame is fixedly connected with a motor A. The output end of the motor A is fixedly connected with a rotating shaft A. An electric lifting plate is fixedly connected to the outside of the rotating shaft A. One side of the extending end of the electric lifting plate is fixedly connected with a motor B. The output end of the motor B is fixedly connected with a lead screw B. The lead screw B penetrates through the electric lifting plate and one side of the chassis. A stop block is fixedly connected to the inner wall of the chassis. One end of the lead screw B is fixedly connected with one side of the stop block. A limiting groove penetrating through the telescopic frame is formed on one side of the telescopic frame. The stop block is slidably connected inside the limiting groove and the lead screw B is arranged inside the limiting groove. The lead screw B is threadedly connected with the telescopic frame.

[0010] Further, the polishing component includes a chassis fixedly connected to the upper surface of the rotating frame. A sliding groove is formed on the upper surface of the rotating frame. The chassis is fixedly connected to the inner wall of the sliding groove. A side frame is fixedly connected to the upper surface of the chassis. One side of the side frame is fixedly connected with a motor C. The output end of the motor C is fixedly connected with a connecting shaft. A polishing roller is fixedly connected to the outside of the connecting shaft. There are two groups of the side frames in total. The two groups of side frames are symmetrically arranged. The polishing roller is arranged between the two groups of side frames.

[0011] Further, the glue injection component includes a movable block slidably connected inside the chute. An electric telescopic rod is provided on one side of the rotating frame. One end of the electric telescopic rod penetrates through one side of the rotating frame and is fixedly connected to one side of the movable block. A magnetic plate C is arranged inside the movable block. The inside of the rotating frame is a hollow structure. A magnetic plate D is slidably connected inside the rotating frame. The magnetic plate D and the magnetic plate C attract each other. A sealing ring A is fixedly connected to the outside of the magnetic plate D. The sealing ring A fits against the inner wall of the rotating frame. A dust removal pipe A is fixedly connected to the upper surface of the rotating frame. A dust removal pipe B is fixedly connected inside the rotating frame. An air outlet groove is opened on one side of the rotating frame. The air outlet groove is arranged below the chassis. A breathing valve for balancing the air pressure in the hollow structure of the rotating frame is fixedly connected to the bottom surface of the rotating frame.

[0012] Further, a top box is fixedly connected to the upper surface of the movable block. There are two groups of the top boxes in total. The two groups of top boxes are symmetrically arranged. A lead screw A is rotatably connected between the two groups of top boxes. A gear is fixedly connected to the outside of the lead screw A. A limit ring is fixedly connected to the upper surface of the movable block. The lead screw A is rotatably connected inside the limit ring. A rack plate is fixedly connected to one side of the rotating frame. The gear is meshed with the rack plate. A glue injection box is arranged inside the top box. A connecting short rod is slidably connected inside the glue injection box. One end of the connecting short rod is fixedly connected to a sealing plate. The sealing plate fits against the inner wall of the glue injection box. The other end of the connecting short rod is threadedly connected to the lead screw A. A bottom plate is fixedly connected to the other end of the lead screw A. A one-way pressure valve A is arranged on one side of the glue injection box. A glue storage box is fixedly connected to the upper surface of the glue injection box. A one-way pressure valve B is arranged at the connection between the glue storage box and the glue injection box. A supplementary port B is opened on the upper surface of the glue storage box. A supplementary port A is opened on the upper surface of the glue injection box.

[0013] Further, the placing component includes a placing frame fixedly connected to one side of the rotating frame. A side plate is fixedly connected to one side of the placing frame. There are two groups of the side plates in total. The two groups of side plates are symmetrically arranged. The side plate is a hollow structure. A glue conveying hose is fixedly connected between the side plate and the one-way pressure valve A. An electric telescopic rod is fixedly connected to the bottom surface of the placing frame. The extending end of the electric telescopic rod penetrates through the bottom surface of the placing frame and is fixedly connected to a rubber insertion plate. There are two groups of the rubber insertion plates in total. The two groups of rubber insertion plates are symmetrically arranged. The main body of the strain gauge is clamped inside the rubber insertion plate. A limit short plate is fixedly connected to one side of the side plate. The main body of the strain gauge is arranged inside the limit short plate. An adhesive outlet is opened on one side of the side plate. The adhesive outlet is correspondingly arranged with the base of the main body of the strain gauge.

[0014] Further, a motor D is arranged inside the extension frame. The output end of the motor D is fixedly connected to a rotating shaft D, and the upper end of the rotating shaft D is fixedly connected to the bottom surface of the rotating frame. Magnet plates A and B are fixedly connected to the upper surface of the extension frame. The magnet plates A and B are symmetrically arranged on both sides of the extension frame and are magnetically repulsive. An empty slot is formed inside the rotating frame, and a magnet plate E is slidably connected inside the empty slot. A sealing ring B is fixedly connected to the outside of the magnet plate E, and the sealing ring B is attached to the inner wall of the empty slot. The magnet plate E is magnetically attractive to the magnet plate B. A supplementary air pipe is fixedly connected to one side of the rotating frame. A multi-stage telescopic rod is arranged inside the side plate. One end of the multi-stage telescopic rod penetrates through the side plate and is fixedly connected to a scraping plate. A compression slot is formed on one side of the side plate, and the scraping plate is slidably connected inside the compression slot. The empty slot is communicated with the inside of the multi-stage telescopic rod through the supplementary air pipe. A breathing valve for balancing the air pressure inside the empty slot is provided on one side of the rotating frame.

[0015] Further, a spring is fixedly connected to the inner wall of the compression slot, and one end of the spring is fixedly connected to one side of the scraping plate.

[0016] Further, a solenoid valve for controlling the outflow of the colloid is arranged inside the side plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] A concrete bridge structure crack monitoring device proposed by the present invention, through the amplifier circuit module and the filtering module of the signal conditioning module in the signal receiving module, while enhancing the signal emitted during monitoring, reduces the interference of noise and interference signals, improves the quality and stability of the signal. At the same time, the electric lifting plate is driven by the motor A to flip, and in cooperation with the rotation of the motor B and the lead screw B, the extension frame is driven to move horizontally. After adjusting to the installation position, the installation position is polished by the polishing component, and the dust removal is realized by driving the movable block to move by the electric telescopic rod. At the same time, the injection of glue into the strain gauge main body is realized by driving the sealing plate to extrude the glue injection box by the rotation of the lead screw A. Then, the rotating frame is driven to rotate by the motor D, and by using the magnetic change between the magnet plate E and the magnet plates A and B, the air in the empty slot is discharged, driving the scraping plate to move to scrape the marble glue evenly. Finally, the strain gauge main body is driven to rise by the electric telescopic rod to complete the fixation. Ultimately, while realizing stable monitoring signals, the purpose of facilitating the installation of the monitoring structure is achieved. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the installation state of the strain gauge main body of the present invention;

[0021] Figure 3 It is a schematic diagram of the placement state of the strain gauge main body of the present invention;

[0022] Figure 4Schematic diagram of the extension frame and the rotating frame installation structure of the present invention;

[0023] Figure 5 Schematic plan view of the polishing component structure of the present invention;

[0024] Figure 6 Schematic plan view of the internal structure of the rotating frame of the present invention;

[0025] Figure 7 Schematic diagram of the external structure of the glue injection component of the present invention;

[0026] Figure 8 Schematic diagram of the internal structure of the empty slot of the present invention;

[0027] Figure 9 Schematic plan view of the internal structure of the glue injection component of the present invention;

[0028] Figure 10 Schematic diagram of the storage component structure of the present invention;

[0029] Figure 11 For the present invention Figure 10 Enlarged schematic diagram at location A;

[0030] Figure 12 Schematic plan view of the multi-stage telescopic rod and the scraper of the present invention;

[0031] Figure 13 Schematic diagram of the control unit of the control vehicle of the present invention.

[0032] In the figure: 1. Control vehicle; 11. Industrial camera; 2. Installation mechanism; 21. Flip frame; 22. Motor A; 23. Rotating shaft A; 24. Electric lifting plate; 25. Motor B; 251. Lead screw B; 26. Underframe; 261. Stopper; 3. Extension frame; 31. Limit groove; 32. Magnetic plate A; 321. Magnetic plate B; 33. Motor D; 4. Rotating frame; 41. Dust outlet groove; 42. Slide groove; 43. Rack plate; 44. Dust removal pipe A; 45. Dust removal pipe B; 46. Magnetic plate D; 47. Sealing ring A; 48. Empty groove; 49. Magnetic plate E; 491. Sealing ring B; 5. Polishing component; 51. Chassis; 52. Side frame; 53. Motor C; 54. Polishing roller; 6. Glue injection component; 61. Movable block; 611. Magnetic plate C; 62. Top box; 621. Glue injection box; 622. One-way pressure valve A; 623. Supplementary port A; 63. Glue storage box; 631. One-way pressure valve B; 632. Supplementary port B; 64. Lead screw A; 641. Limit ring; 65. Gear; 66. Connecting short rod; 661. Sealing plate; 662. Bottom plate; 7. Placing component; 71. Placing frame; 72. Side plate; 721. Limit short plate; 722. Compression groove; 723. Spring; 73. Glue outlet; 74. Scraper; 75. Rubber plug; 76. Supplementary air pipe; 77. Multi-stage telescopic rod; 8. Body of strain gauge for crack measurement. Detailed implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0034] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0035] Combined with Figures 1-4 and Figure 13 , a crack monitoring device for a concrete bridge structure includes a control vehicle 1 arranged on the bridge deck. One side of the control vehicle 1 is fixedly connected with an installation mechanism 2 for lowering and installing. One side of the installation mechanism 2 is fixedly connected with an industrial camera 11. The bottom end of the installation mechanism 2 is fixedly connected with an underframe 26. An extension frame 3 is slidably connected inside the underframe 26. A rotating frame 4 is arranged at the upper end of the extension frame 3. A polishing component 5 for polishing the installation surface is fixedly connected to the upper surface of the rotating frame 4. A glue injection component 6 for injecting glue and removing dust is slidably connected to the upper surface of the rotating frame 4. One side of the rotating frame 4 is fixedly connected with a placing component 7. A body 8 of a strain gauge for crack measurement for monitoring is arranged inside the placing component 7;

[0036] A control unit for crack monitoring is fixedly connected to the surface of the control vehicle 1. Inside the control unit, there is a signal receiving module for receiving signals, a signal processing module for processing signal information, and a signal output module for feedback of detailed signals. Through the signal receiving module, signal processing module, and signal output module in the control unit, the transmission and collection of crack monitoring information are realized. The crack change information is obtained through data processing and analysis, and then the information is output and fed back to complete the crack monitoring.

[0037] The present invention will be further described below in conjunction with embodiments.

[0038] Please refer to Figures 1-12 , a wireless transmission module is provided inside the signal receiving module. The wireless transmission module is signal-connected to a signal conditioning module. An amplification circuit module is provided inside the signal conditioning module, and a filtering module is also provided inside the signal conditioning module. A strain calculation module is provided inside the signal processing module. The strain calculation module is signal-connected to a crack width calculation module. The crack width calculation module is signal-connected to a local storage module. A data display module is provided inside the signal output module, and an early warning output module is also provided inside the signal output module. The signal is transmitted between the wireless transmission module and the main body 8 of the strain gauge type crack meter. The amplification circuit module in the signal conditioning module is used to increase the amplitude of the signal for subsequent processing. The filtering module is used to remove noise and interference signals to improve the quality and stability of the signal. The strain value of the measured structure is calculated by the strain calculation module according to the transmitted information, and the crack width data is calculated by the crack width calculation module. The obtained data is stored in the local storage module. Finally, the obtained details are displayed to the user through the data display module, and a warning message is sent through the early warning output module when the data information reaches the rated value.

[0039] The installation mechanism 2 includes a turnover frame 21 fixedly connected to one side of the control vehicle 1. One side of the turnover frame 21 is fixedly connected with a motor A 22. The output end of the motor A 22 is fixedly connected with a rotating shaft A 23. The outer side of the rotating shaft A 23 is fixedly connected with an electric lifting plate 24. One side of the extending end of the electric lifting plate 24 is fixedly connected with a motor B 25. The output end of the motor B 25 is fixedly connected with a lead screw B 251. The lead screw B 251 penetrates through the electric lifting plate 24 and one side of the bottom frame 26. The inner wall of the bottom frame 26 is fixedly connected with a stop block 261. One end of the lead screw B 251 is fixedly connected with one side of the stop block 261. One side of the extension frame 3 is provided with a limiting groove 31 penetrating through the extension frame 3. The stop block 261 is slidably connected inside the limiting groove 31 and the lead screw B 251 is arranged inside the limiting groove 31. The lead screw B 251 is threadedly connected with the extension frame 3. After placing the strain gauge type joint meter main body 8, start the motor A 22. The motor A 22 drives the rotating shaft A 23 to rotate, thereby driving the electric lifting plate 24 to turn over. Then start the motor B 25. The motor B 25 drives the lead screw B 251 to rotate, thereby driving the extension frame 3 to slide out along the inner wall of the bottom frame 26. The limiting groove 31 cooperates with the stop block 261 to limit the sliding of the extension frame 3. When moving to the monitoring position, use the electric lifting plate 24 to drive the bottom frame 26 to move up to adjust the subsequent installation height.

[0040] The polishing component 5 includes a chassis 51 fixedly connected to the upper surface of the rotating frame 4. The upper surface of the rotating frame 4 is provided with a sliding groove 42. The chassis 51 is fixedly connected to the inner wall of the sliding groove 42. The upper surface of the chassis 51 is fixedly connected with a side frame 52. One side of the side frame 52 is fixedly connected with a motor C 53. The output end of the motor C 53 is fixedly connected with a connecting shaft. The outer side of the connecting shaft is fixedly connected with a polishing roller 54. There are two groups of the side frames 52 in total. The two groups of the side frames 52 are symmetrically arranged. The polishing roller 54 is arranged between the two groups of the side frames 52. Before installing the strain gauge type joint meter main body 8, it is necessary to polish the installation position. Start the motor C 53. The motor C 53 drives the connecting shaft to rotate, thereby driving the polishing roller 54 to rotate. The polishing work of the installation position is realized by rotational friction.

[0041] The glue injection component 6 includes a movable block 61 slidably connected inside the chute 42. An electric telescopic rod is provided on one side of the rotary frame 4. One end of the electric telescopic rod penetrates through one side of the rotary frame 4 and is fixedly connected to one side of the movable block 61. A magnetic plate C611 is arranged inside the movable block 61. The inside of the rotary frame 4 is a hollow structure. A magnetic plate D46 is slidably connected inside the rotary frame 4. The magnetic plate D46 and the magnetic plate C611 attract each other. A sealing ring A47 is fixedly connected to the outside of the magnetic plate D46. The sealing ring A47 fits against the inner wall of the rotary frame 4. A dust removal pipe A44 is fixedly connected to the upper surface of the rotary frame 4. A dust removal pipe B45 is fixedly connected inside the rotary frame 4. An air outlet groove 41 is formed on one side of the rotary frame 4. The air outlet groove 41 is arranged below the chassis 51. A breathing valve for balancing the air pressure inside the hollow structure of the rotary frame 4 is fixedly connected to the bottom surface of the rotary frame 4. After the grinding is completed, the electric telescopic rod is turned on to drive the movable block 61 to move towards the chassis 51, and the movable block 61 is used to scrape off the dust scattered inside the chute 42. At the same time, the magnetic plate C611 drives the magnetic plate D46 to move synchronously, so as to squeeze the air inside the rotary frame 4 by the magnetic plate D46 and discharge it through the dust removal pipe A44 and the dust removal pipe B45. On the one hand, the debris that may adhere to the grinding surface is blown away, and on the other hand, the dust inside the chute 42 is blown away from the air outlet groove 41 to prevent the residual dust on the wall from affecting the subsequent adhesion.

[0042] A top box 62 is fixedly connected to the upper surface of the movable block 61. There are two groups of the top boxes 62 in total. The two groups of the top boxes 62 are symmetrically arranged. A lead screw A64 is rotatably connected between the two groups of the top boxes 62. A gear 65 is fixedly connected to the outside of the lead screw A64. A limit ring 641 is fixedly connected to the upper surface of the movable block 61. The lead screw A64 is rotatably connected inside the limit ring 641. A rack plate 43 is fixedly connected to one side of the rotary frame 4. The gear 65 is meshed with the rack plate 43. A glue injection box 621 is arranged inside the top box 62. A connecting short rod 66 is slidably connected inside the glue injection box 621. One end of the connecting short rod 66 is fixedly connected to a sealing plate 661. The sealing plate 661 fits against the inner wall of the glue injection box 621. The other end of the connecting short rod 66 is threadedly connected to the lead screw A64. A bottom plate 662 is fixedly connected to the other end of the lead screw A64. A one-way pressure valve A622 is arranged on one side of the glue injection box 621. A glue storage box 63 is fixedly connected to the upper surface of the glue injection box 621. A one-way pressure valve B631 is arranged at the communicating part between the glue storage box 63 and the glue injection box 621. A replenishing port B632 is formed on the upper surface of the glue storage box 63. A replenishing port A623 is formed on the upper surface of the glue injection box 621. During the movement, the rack plate 43 drives the gear 65 to rotate, synchronously drives the lead screw A64 to rotate, and further drives the connecting short rod 66 to move towards the inside of the glue injection box 621. The sealing plate 661 is used for extrusion, and the marble glue inside the glue injection box 621 is extruded from the one-way pressure valve A622. When the movable block 61 resets, it drives the gear 65 to reverse and drives the sealing plate 661 to reset, so that the marble glue inside the glue storage box 63 is replenished into the glue injection box 621 through the one-way pressure valve B631.

[0043] The storage component 7 includes a storage frame 71 fixedly connected to one side of the rotating rack 4. One side of the storage frame 71 is fixedly connected with a side plate 72. There are two groups of the side plates 72 in total, and the two groups of side plates 72 are symmetrically arranged. The side plate 72 is a hollow structure. A glue delivery hose is fixedly connected between the side plate 72 and the one-way pressure valve A622. The bottom surface of the storage frame 71 is fixedly connected with an electric telescopic rod. The extending end of the electric telescopic rod penetrates through the bottom surface of the storage frame 71 and is fixedly connected with a rubber plug 75. There are two groups of the rubber plugs 75 in total, and the two groups of rubber plugs 75 are symmetrically arranged. The body 8 of the strain gauge is clamped inside the rubber plug 75. One side of the side plate 72 is fixedly connected with a limiting short plate 721. The body 8 of the strain gauge is arranged inside the limiting short plate 721. An adhesive outlet 73 is formed on one side of the side plate 72, and the adhesive outlet 73 is correspondingly arranged with the base of the body 8 of the strain gauge. When installing the body 8 of the strain gauge, the body 8 of the strain gauge is clamped inside the rubber plug 75, and the side plate 72 plays a role in limiting and positioning. After the one-way pressure valve A622 discharges the glue, the marble glue is discharged from the adhesive outlet 73 to the surface of the base of the body 8 of the strain gauge through the glue delivery hose and the side plate 72. Then, the electric telescopic rod is used to drive the rubber plug 75 to rise, so that the base of the body 8 of the strain gauge is closely attached to the installation surface, and after waiting for a few minutes, the fixation is completed.

[0044] Inside the extension frame 3, there is a motor D33. The output end of the motor D33 is fixedly connected to a rotating shaft D. The upper end of the rotating shaft D is fixedly connected to the bottom surface of the rotating frame 4. On the upper surface of the extension frame 3, there are a magnetic plate A32 and a magnetic plate B321 fixedly connected. The magnetic plate A32 and the magnetic plate B321 are symmetrically arranged on both sides of the extension frame 3 and repel each other magnetically. Inside the rotating frame 4, there is an empty slot 48. Inside the empty slot 48, there is a magnetic plate E49 slidably connected. Outside the magnetic plate E49, there is a sealing ring B491 fixedly connected. The sealing ring B491 fits against the inner wall of the empty slot 48. The magnetic plate E49 and the magnetic plate B321 attract each other magnetically. One side of the rotating frame 4 is fixedly connected to a supplementary air pipe 76. Inside the side plate 72, there is a multi-stage telescopic rod 77. One end of the multi-stage telescopic rod 77 penetrates through the side plate 72 and is fixedly connected to a scraping plate 74. On one side of the side plate 72, there is a compression slot 722. The scraping plate 74 is slidably connected inside the compression slot 722. The empty slot 48 is communicated with the inside of the multi-stage telescopic rod 77 through the supplementary air pipe 76. On one side of the rotating frame 4, there is a breathing valve for balancing the air pressure inside the empty slot 48. When installing the strain gauge main body 8, the rotating frame 4 needs to rotate to move the strain gauge main body 8 to the position polished by the polishing component 5. The motor D33 is used to drive the rotating frame 4 to rotate. When the magnetic plate E49 rotates to the end of the magnetic plate A32, the magnetic repulsion is used to drive the magnetic plate E49 to move upward, thereby squeezing the air inside the empty slot 48. The air is transmitted through the supplementary air pipe 76 to drive the multi-stage telescopic rod 77 to extend, thereby driving the scraping plate 74 to move along the inner wall of the spring 723, achieving the effect of smoothing the marble glue. After the installation is completed, the motor D33 rotates to drive the rotating frame 4 to reset, and the magnetic plate E49 moves downward to cooperate with the breathing valve to balance the air pressure.

[0045] The inner wall of the compression slot 722 is fixedly connected to a spring 723. One end of the spring 723 is fixedly connected to one side of the scraping plate 74. The scraping plate 74 is reset by the restoring force of the spring 723 and the air pressure change inside the multi-stage telescopic rod 77.

[0046] Inside the side plate 72, there is an electromagnetic valve for controlling the outflow of the colloid. Through the setting of the electromagnetic valve, it is convenient to control the marble glue to flow out from the required glue outlet 73 position.

[0047] Specifically, the body 8 of the strain gauge joint meter is clamped inside the rubber plug 75. The motor A22 is turned on. The motor A22 drives the rotation of the rotating shaft A23, and then drives the flipping of the electric lifting plate 24. Subsequently, the motor B25 is turned on. The motor B25 drives the rotation of the lead screw B251, and then drives the extension frame 3 to slide out along the inner wall of the base frame 26. The limit groove 31 and the stopper 261 cooperate to limit the sliding of the extension frame 3. When it moves to the monitoring position, the motor C53 is turned on. The motor C53 drives the rotation of the connecting shaft, and then drives the rotation of the grinding roller 54. The grinding work of the installation position is realized by rotational friction. After the grinding is completed, the electric telescopic rod is turned on to drive the movable block 61 to move towards the chassis 51. The movable block 61 is used to scrape the dust scattered inside the chute 42. At the same time, the magnetic plate C611 drives the synchronous movement of the magnetic plate D46 by magnetism. Thus, the air inside the rotating frame 4 is squeezed by the magnetic plate D46 and discharged through the dust removal pipe A44 and the dust removal pipe B45. On the one hand, the debris that may adhere to the grinding surface is blown away. On the other hand, the dust inside the chute 42 is blown away from the dust outlet 41 to prevent the residual dust on the wall from affecting the subsequent adhesion. During the movement, the rack plate 43 drives the rotation of the gear 65, synchronously drives the rotation of the lead screw A64, and then drives the connecting short rod 66 to move into the glue injection box 621. The sealing plate 661 is used for extrusion, and the marble glue in the glue injection box 621 is extruded from the one-way pressure valve A622. When the movable block 61 resets, it drives the reverse rotation of the gear 65 and drives the sealing plate 661 to reset, so that the marble glue inside the glue storage box 63 is supplemented to the glue injection box 621 through the one-way pressure valve B631. The marble glue is discharged from the glue outlet 73 to the base surface of the body 8 of the strain gauge joint meter through the glue conveying hose and the side plate 72. The motor D33 is used to drive the rotation of the rotating frame 4. When the magnetic plate E49 rotates to the end of the magnetic plate A32, the magnetic repulsion is used to drive the upward movement of the magnetic plate E49, thus squeezing the air inside the empty groove 48. The multi-stage telescopic rod 77 is driven to extend through the transmission of the air through the air supply pipe 76, and then drives the scraping plate 74 to move along the inner wall of the spring 723, realizing the effect of smoothing the marble glue. After the installation is completed, the motor D33 rotates to drive the rotation of the rotating frame 4 to reset. The magnetic plate E49 moves downward to balance the air pressure with the breathing valve. Subsequently, the electric telescopic rod is used to drive the rubber plug 75 to rise, and the base of the body 8 of the strain gauge joint meter is closely attached to the installation surface. After waiting for a few minutes, the fixation is completed. Finally, the purpose of conveniently and accurately installing the monitoring structure without the need for workers to approach is achieved.

[0048] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete bridge structure crack monitoring device, comprising a control vehicle (1) arranged on a bridge deck, characterized in that: The control vehicle (1) is fixedly connected to a mounting mechanism (2) for lowering and mounting on one side, and an industrial camera (11) is fixedly connected to one side of the mounting mechanism (2). The bottom end of the mounting mechanism (2) is fixedly connected to a base frame (26), and an extension frame (3) is slidably connected inside the base frame (26). A rotating frame (4) is arranged on the upper end of the extension frame (3). A polishing component (5) for polishing the mounting surface is fixedly connected to the upper surface of the rotating frame (4), and a glue injection component (6) for glue injection and dust removal is slidably connected to the upper surface of the rotating frame (4). A storage component (7) is fixedly connected to one side of the rotating frame (4), and a strain gauge type joint meter body (8) for monitoring is arranged inside the storage component (7); The control vehicle (1) has a control unit for crack monitoring fixedly connected to its surface, a signal receiving module for receiving signals arranged inside the control unit, a signal processing module for processing signal information arranged inside the control unit, and a signal output module for feeding back signal details arranged inside the control unit.

2. A concrete bridge structure crack monitoring device according to claim 1, characterized in that: The signal receiving module is internally provided with a wireless transmission module, the wireless transmission module signal is connected to the signal conditioning module, the signal conditioning module is internally provided with an amplifying circuit module, the signal conditioning module is also internally provided with a filtering module, the signal processing module is internally provided with a strain calculation module, the strain calculation module signal is connected to the crack width calculation module, the crack width calculation module signal is connected to the local storage module, the signal output module is internally provided with a data display module, and the signal output module is also internally provided with an early warning output module.

3. A concrete bridge structure crack monitoring device according to claim 1, characterized in that: The mounting mechanism (2) comprises a tilting frame (21) fixedly connected to one side of the control vehicle (1); a motor A (22) is fixedly connected to one side of the tilting frame (21); a rotating shaft A (23) is fixedly connected to the output end of the motor A (22); an electric lifting plate (24) is fixedly connected to the outer side of the rotating shaft A (23); a motor B (25) is fixedly connected to one side of the extended end of the electric lifting plate (24); a screw rod B (251) is fixedly connected to the output end of the motor B (25); and the screw rod B (251) is fixedly connected to the output end of the motor B (25). ) penetrates the electric lifting plate (24) and one side of the base frame (26), a stopper (261) is fixedly connected to the inner wall of the base frame (26), one end of the screw rod B (251) is fixedly connected to one side of the stopper (261), one side of the extension frame (3) is provided with a limiting groove (31) penetrating the extension frame (3), the stopper (261) is slidably connected to the inside of the limiting groove (31) and the screw rod B (251) is arranged in the inside of the limiting groove (31), and the screw rod B (251) is threadedly connected to the extension frame (3).

4. A concrete bridge structure crack monitoring device according to claim 1, characterized in that: The polishing component (5) comprises a chassis (51) fixedly connected to the upper surface of the rotating frame (4), the upper surface of the rotating frame (4) is provided with a slide groove (42), the chassis (51) is fixedly connected to the inner wall of the slide groove (42), the upper surface of the chassis (51) is fixedly connected to a side frame (52), one side of the side frame (52) is fixedly connected to a motor C (53), the output end of the motor C (53) is fixedly connected to a connecting shaft, the outer side of the connecting shaft is fixedly connected to a grinding roller (54), and two groups of the side frames (52) are provided, the two groups of the side frames (52) are symmetrically arranged, and the grinding roller (54) is arranged between the two groups of the side frames (52).

5. A concrete bridge structure crack monitoring device according to claim 4, characterized in that: The glue injection component (6) comprises a movable block (61) slidably connected to the inside of the slide groove (42); an electric telescopic rod is arranged on one side of the rotating frame (4); one end of the electric telescopic rod passes through one side of the rotating frame (4) and is fixedly connected to one side of the movable block (61); a magnetic plate C (611) is arranged inside the movable block (61); the inside of the rotating frame (4) is a hollow structure; a magnetic plate D (46) is slidably connected to the inside of the rotating frame (4); the magnetic plate D (46) and the magnetic plate C (611) attract each other; A sealing ring A (47) is fixedly connected to the outer side of the magnetic plate D (46), the sealing ring A (47) is in contact with the inner wall of the rotating frame (4), a dust removal pipe A (44) is fixedly connected to the upper surface of the rotating frame (4), a dust removal pipe B (45) is fixedly connected to the inside of the rotating frame (4), a dust outlet groove (41) is provided on one side of the rotating frame (4), the dust outlet groove (41) is arranged below the chassis (51), and a breathing valve for balancing the air pressure of the hollow structure of the rotating frame (4) is fixedly connected to the bottom surface of the rotating frame (4).

6. A concrete bridge structure crack monitoring device according to claim 5, characterized in that: The upper surface of the movable block (61) is fixedly connected with a top box (62). The top boxes (62) are provided with two groups in total. The two groups of top boxes (62) are symmetrically arranged. A screw rod A (64) is rotatably connected between the two groups of top boxes (62). The outer side of the screw rod A (64) is fixedly connected with a gear (65). The upper surface of the movable block (61) is fixedly connected with a limit ring (641). The screw rod A (64) is rotatably connected to the inside of the limit ring (641). One side of the rotating frame (4) is fixedly connected with a rack plate (43). The gear (65) is meshedly connected with the rack plate (43). A glue injection box (621) is provided inside the top box (62). A connecting short rod (65) is slidably connected inside the glue injection box (621). 66), one end of the connecting short rod (66) is fixedly connected to a sealing plate (661), the sealing plate (661) is fitted with the inner wall of the glue injection box (621), the other end of the connecting short rod (66) is threadedly connected to the screw rod A (64), the other end of the screw rod A (64) is fixedly connected to the bottom plate (662), a one-way pressure valve A (622) is provided on one side of the glue injection box (621), a glue storage box (63) is fixedly connected to the upper surface of the glue injection box (621), a one-way pressure valve B (631) is provided at the connection between the glue storage box (63) and the glue injection box (621), a replenishing port B (632) is provided on the upper surface of the glue storage box (63), and a replenishing port A (623) is provided on the upper surface of the glue injection box (621).

7. A concrete bridge structure crack monitoring device according to claim 5, characterized in that: The storage component (7) comprises a storage frame (71) fixedly connected to one side of the rotating frame (4); a side plate (72) is fixedly connected to one side of the storage frame (71); two groups of side plates (72) are provided, and the two groups of side plates (72) are symmetrically arranged; the side plates (72) are hollow structures; a rubber delivery hose is fixedly connected between the side plates (72) and the one-way pressure valve A (622); an electric telescopic rod is fixedly connected to the bottom surface of the storage frame (71); an extended end of the electric telescopic rod passes through the bottom surface of the storage frame (71) and is fixed A rubber insert (75) is connected, and two groups of the rubber insert (75) are provided. The two groups of the rubber insert (75) are symmetrically arranged. The strain gauge type joint meter body (8) is snap-fitted to the inside of the rubber insert (75). One side of the side plate (72) is fixedly connected to a limiting short plate (721). The strain gauge type joint meter body (8) is arranged inside the limiting short plate (721). One side of the side plate (72) is provided with a glue outlet (73), and the glue outlet (73) is arranged corresponding to the base of the strain gauge type joint meter body (8).

8. A concrete bridge structure crack monitoring device according to claim 7, characterized in that: The extension frame (3) is provided with a motor D (33) inside, the output end of the motor D (33) is fixedly connected to a rotating shaft D, the upper end of the rotating shaft D is fixedly connected to the bottom surface of the rotating frame (4), the upper surface of the extension frame (3) is fixedly connected to a magnetic plate A (32) and a magnetic plate B (321), the magnetic plate A (32) and the magnetic plate B (321) are symmetrically arranged on both sides of the extension frame (3) and magnetically repel each other, an empty slot (48) is opened inside the rotating frame (4), a magnetic plate E (49) is slidably connected inside the empty slot (48), a sealing ring B (491) is fixedly connected to the outer side of the magnetic plate E (49), and the sealing ring B (491) is connected to the empty slot (4 8) The inner walls are fitted together, the magnetic plate E (49) and the magnetic plate B (321) are magnetically attracted to each other, an air supply pipe (76) is fixedly connected to one side of the rotating frame (4), a multi-stage telescopic rod (77) is arranged inside the side plate (72), one end of the multi-stage telescopic rod (77) passes through the side plate (72) and is fixedly connected to a scraper (74), a compression groove (722) is opened on one side of the side plate (72), the scraper (74) is slidably connected to the inside of the compression groove (722), the empty groove (48) is connected to the inside of the multi-stage telescopic rod (77) through the air supply pipe (76), and a breathing valve for balancing the internal air pressure of the empty groove (48) is provided on one side of the rotating frame (4).

9. A concrete bridge structure crack monitoring device according to claim 8, characterized in that: A spring (723) is fixedly connected to the inner wall of the compression groove (722), and one end of the spring (723) is fixedly connected to one side of the scraper (74).

10. A concrete bridge structure crack monitoring device according to claim 9, characterized in that: A solenoid valve for controlling the outflow of colloid is arranged inside the side plate (72).

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