A bridge crack width tracking and monitoring device

Abstract

The present invention discloses a bridge crack width tracking monitoring device, which relates to the technical field of monitoring devices, including a mounting substrate, and a monitoring component arranged on the mounting substrate, wherein the monitoring component includes a laser sensor, an ultrasonic sensor, a monitoring camera, a wireless transceiver and a controller, wherein the mounting substrate includes a bottom plate and a side plate vertically arranged on one side of the bottom plate, and mounting holes are evenly arranged at both ends of the bottom plate; the present invention also includes a plurality of probe triggering components arranged on the side plate along the length direction of the side plate, wherein the probe triggering components include a sliding seat, a probe tube, a probe and a detection element, wherein the sliding seat is installed on the side plate in an installation manner that can slide freely perpendicular to the side plate through a position adjustment component, and an axial hole adapted to the probe tube is arranged on the sliding seat. The present invention can reduce the energy consumption of the monitoring component and extend the working time of the monitoring component without affecting the monitoring effect.

Description

Technical Field

[0001] The invention relates to the technical field of monitoring devices, and in particular to a bridge crack width tracking and monitoring device. Background Art

[0002] Concrete cracks have an important impact on the safety of bridge structures. Cracks are divided into initial cracks and stress cracks according to their causes. Initial cracks are often caused by concrete hydration heat during construction and improper construction and maintenance. These cracks have little effect on the stress of the structure. Stress cracks are caused by factors such as heavy traffic and foundation settlement. If the cracks exceed the limit specified in the specification, it will have an adverse effect on the structural performance and lead to safety accidents. Therefore, timely grasping the generation and development process of structural cracks is of great significance to the safe operation and maintenance of bridges and avoiding potential accidents.

[0003] Chinese patent CN116558422B, authorized and announced on October 10, 2023, discloses a bridge crack width tracking and monitoring device, which includes a telescopic detection component, a positioning installation component is provided on the outer side of the telescopic detection component, and laser monitoring components are provided on both sides of the telescopic detection component...

[0004] This patent uses a laser sensor in conjunction with an ultrasonic sensor to monitor the width of the crack, which is beneficial to further improve the monitoring range and monitoring function of the equipment. At the same time, the monitoring camera can cooperate with the steering gear to steer, and the translation motor drives the threaded rod to rotate so that the slider slides and drives the monitoring camera to move, effectively providing the monitoring camera with a large range of monitoring, viewing and detection. The wireless transceiver can transmit all the data obtained from the monitoring to the device terminal, which is convenient for remote control and viewing and analyzing data, thereby improving overall work efficiency.

[0005] However, this patent has the following defects when in use: the laser monitoring component is in working state for a long time and consumes a lot of power. Due to the special installation location, it is generally powered by batteries, resulting in short working efficiency of the laser monitoring component. Although this problem can be solved by connecting to AC power externally, it increases the cost and intensity of deployment. Summary of the invention

[0006] The purpose of the present invention is to provide a bridge crack width tracking and monitoring device to solve the problems raised in the above background technology.

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

[0008] The present invention provides a bridge crack width tracking and monitoring device, comprising a mounting substrate and a monitoring component arranged on the mounting substrate, wherein the monitoring component comprises a laser sensor, an ultrasonic sensor, a monitoring camera, a wireless transceiver and a controller, and the mounting substrate comprises a bottom plate and a side plate vertically arranged on one side of the bottom plate, and mounting holes are evenly arranged at both ends of the bottom plate;

[0009] It also includes a plurality of probe trigger assemblies arranged on the side plate along the length direction of the side plate, the probe trigger assembly includes a sliding seat, a probe tube, a probe and a detection element, the sliding seat is installed on the side plate through a position adjustment component in a manner that it can slide freely along a direction perpendicular to the side plate, the sliding seat is provided with an axial hole adapted to the probe tube, the probe tube passes through and slides in the axial hole, and the probe tube can only slide in a direction perpendicular to the bottom plate, the probe is installed in the probe tube through an elastic member in a manner that it can slide with damping along the axial direction of the probe tube, the end of the probe close to the bottom plate passes through the corresponding end of the probe tube to form an inserted tip, and the detection element is used to detect the movement of the probe.

[0010] Furthermore, the position adjustment component includes a strip positioning frame, one end of which is provided with a locking piece that is engaged with the side of the side plate away from the bottom plate, the strip positioning frame is arranged perpendicular to the side plate, and the sliding seat is slidably adapted on the inner side of the strip positioning frame.

[0011] Furthermore, the elastic member includes a slider axially slidably arranged in the probe tube and a return spring arranged on the side of the slider away from the probe, and one end of the return spring away from the slider is connected to one end of the probe tube away from the bottom.

[0012] Furthermore, the detection element includes a damping block axially slidingly arranged in the probe tube, a friction layer in contact with the inner wall of the probe tube is arranged on the outer side of the damping block, the damping block is located on the side of the slider close to the base plate, and the damping block is provided with a through hole for the probe to pass through, pull rods are evenly arranged along the circumferential direction on the side of the damping block close to the slider, and the pull rods pass through the slider and are fixedly connected to the limiting block, and a pressure sensor and a preload spring are also arranged on the side of the damping block close to the slider, and the stiffness coefficient of the reset spring is greater than the stiffness coefficient of the preload spring.

[0013] Furthermore, an infrared ranging sensor is arranged at one end of the probe tube close to the bottom plate.

[0014] Furthermore, a slide groove is provided on the side panel along its length direction, a movable seat is slidably arranged in the slide groove, a steering gear is arranged on the movable seat, the laser sensor, ultrasonic sensor and monitoring camera are all installed on the steering gear, and a driving device for driving the movable seat to slide along the length direction of the slide groove is also arranged on the side panel.

[0015] Furthermore, the driving device includes support plates symmetrically arranged on the side plates at both ends of the slide groove, a screw rotatably arranged between a pair of support plates, and a stepper motor fixed on one of the support plates for driving the screw to rotate, wherein the moving seat is matched with the screw thread through an internal thread block.

[0016] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0017] The present invention can reduce the energy consumption of the monitoring component and extend the working time of the monitoring component without affecting the monitoring effect.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0021] Figure 2 is a second viewing angle structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the split structure of the probe trigger component of the present invention;

[0023] Figure 4 It is a schematic diagram of the detection element and the elastic member split structure of the present invention;

[0024] Figure 5 It is a schematic cross-sectional structural diagram of the probe trigger assembly of the present invention.

[0025] In the figure:

[0026] 1-mounting base plate; 11-bottom plate; 12-side plate; 122-slide groove; 13-mounting hole; 2-monitoring component; 21-laser sensor; 22-ultrasonic sensor; 23-monitoring camera; 3-probe trigger component; 31-sliding seat; 311-axial hole; 32-probe tube; 33-probe; 331-insertion tip; 34-detection element; 341-damping block; 342-friction layer; 343-pull rod; 344-limiting block; 345-pressure sensor; 346-preload spring; 35-position adjustment component; 351-strip positioning frame; 352-clamping piece; 36-elastic piece; 361-slider; 362-reset spring; 4-moving seat; 41-steering gear; 42-support plate; 43-screw; 44-stepping motor; 45-internal thread block. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0028] See also Figure 1-Figure 5 The present invention provides a bridge crack width tracking and monitoring device, including a mounting substrate 1, and a monitoring component 2 arranged on the mounting substrate 1, wherein the monitoring component 2 includes a laser sensor 21, an ultrasonic sensor 22, a monitoring camera 23, a wireless transceiver and a controller, and the mounting substrate 1 includes a bottom plate 11 and a side plate 12 vertically arranged on one side of the bottom plate 11, and mounting holes 13 are evenly arranged at both ends of the bottom plate 11. A hole is drilled on one side of the crack by a drilling rig, and the mounting substrate 1 is fixed to one side of the crack by screws, wherein the width of the crack is monitored by the laser sensor 21 in cooperation with the ultrasonic sensor 22, and the monitoring camera 23 can monitor and detect the area around the crack, and the wireless transceiver can transmit all the data obtained in the monitoring to the device terminal, so as to facilitate remote control and viewing of analysis data. The above are all prior arts, and no further elaboration is made here.

[0029] The present invention aims to reduce the energy consumption of the monitoring component 2 and extend the working time of the monitoring component 2 without affecting the monitoring effect.

[0030] The bridge crack width tracking and monitoring device also includes a plurality of probe 33 trigger assemblies 3 arranged on the side plate 12 along the length direction of the side plate 12. The probe 33 trigger assembly 3 includes a sliding seat 31, a probe tube 32, a probe 33 and a detection element 34. The sliding seat 31 is installed on the side plate 12 through a position adjustment assembly in a manner that allows it to slide freely along a direction perpendicular to the side plate 12. An axial hole 311 adapted to the probe tube 32 is provided on the sliding seat 31. The probe tube 32 penetrates and slides in the axial hole 311, and the probe tube 32 can only slide in a direction perpendicular to the bottom plate 11. The probe 33 is installed in the probe tube 32 through an elastic member 36 in a manner that allows it to slide along the axial direction of the probe tube 32 with damping. One end of the probe 33 close to the bottom plate 11 penetrates the corresponding end of the probe tube 32 to form an inserted tip 331. The detection element 34 is used to detect the movement of the probe 33.

[0031] When in use, after the crack width is monitored by the monitoring component 2, the monitoring component 2 is switched to a standby state through the controller, and then the position of the plurality of probes 33 triggering components 3 is adjusted through the position adjustment component, so that the probes 33 of the plurality of probes 33 triggering components 3 correspond to the crack and are distributed along the length of the crack, and then the probe tube 32 is pushed downward on the sliding seat 31 so that the tip of the probe 33 is inserted into the crack, and the elastic member 36 is compressed. When the crack does not change, the probe 33 and the probe tube 32 are in a relatively static state, and the elastic member 36 is in a compressed state, and the monitoring is always in a standby state, which can reduce the risk of undesired operation. Necessary energy consumption; and when the crack changes, that is, the crack width increases, under the elastic action of the elastic member 36, the probe 33 moves downward relative to the probe tube 32, and the detection element 34 detects the movement of the probe 33 and transmits the signal to the controller and generates an early warning signal. The controller controls the monitoring component 2 to start. At this time, the monitoring component 2 can monitor the width of the crack and transmit all the data obtained in the monitoring to the device terminal. The staff can remotely view the analysis data at the device terminal, and when the monitoring component 2 transmits all the data obtained in the monitoring to the device terminal, it will re-enter the standby state.

[0032] In a specific embodiment of the present invention, the position adjustment assembly includes a strip positioning frame 351, one end of which is provided with a snap-fitting piece 352 snap-fitted to the side of the side plate 12 away from the bottom plate 11, the strip positioning frame 351 is arranged perpendicular to the side plate 12, and the sliding seat 31 is slidably adapted to the inner side of the strip positioning frame 351. Based on the above design, the snap-fitting piece 352 of the strip positioning frame 351 is detachably connected to the side plate 12, so that the staff can adaptively increase or decrease the strip positioning frame 351 on the side plate 12 according to the crack situation, and the strip positioning frame 351 is fixed to limit the sliding mode of the sliding seat 31, so that the probe tube 32 can slide smoothly on the strip positioning frame 351, so that its probe 33 corresponds to the crack.

[0033] In a specific embodiment of the present invention, the elastic member 36 includes a slider 361 axially slidably disposed in the probe tube 32 and a reset spring 362 disposed on the side of the slider 361 away from the probe 33, and the end of the reset spring 362 away from the slider 361 is connected to the end of the probe tube 32 away from the bottom. Based on the above design, when the reset spring 362 is in a normal state, the slider 361 is at the lowest end of its sliding stroke, that is, at the bottom of the probe tube 32. When the probe 33 triggers the assembly 3, the insertion tip 331 of the probe 33 is inserted into the crack, the slider 361 is at the highest end of its sliding stroke, and the reset spring 362 is in a compressed state. When the crack width increases, under the action of the reset spring 362, the slider 361 moves downward to allow the probe 33 to penetrate deeper into the crack.

[0034] In a specific embodiment of the present invention, the detection element 34 includes a damping block 341 axially slidably arranged in the probe tube 32, and a friction layer 342 in contact with the inner wall of the probe tube 32 is arranged on the outer side of the damping block 341. The damping block 341 is located on the side of the slider 361 close to the base plate 11, and the damping block 341 is provided with a through hole for the probe 33 to pass through. The damping block 341 is close to the slider 361 and is evenly provided with pull rods 343 along the circumferential direction. The pull rods 343 pass through the slider 361 and are fixedly connected to the limit block 344. The damping block 341 is close to the slider 361 and is also provided with a pressure sensor 345 and a preload spring 346. The stiffness coefficient of the reset spring 362 is greater than the stiffness coefficient of the preload spring 346.

[0035] Based on the above design, during the installation of the probe 33 trigger assembly 3, when the slider 361 compresses the reset spring 362 and moves upward, the damping block 341 can move upward with the slider 361 through the limit block 344 and the pull rod 343. At this time, the gap between the damping block 341 and the slider 361 is the largest, and the preload spring 346 is preloaded with a force that causes the damping block 341 and the slider 361 to move relative to each other. The two sides of the pressure sensor 345 are in contact with the damping block 341 and the slider 361 respectively, and the value of the pressure sensor 345 is 0. At the moment when the crack width increases, the slider 361 moves downward rapidly under the force of the reset spring 362. Since the slider 361 is instantaneous 341 moves downward, and the damping block 341 has a certain friction with the inner wall of the probe tube 32 through the setting of the friction layer 342. Although there is a preload spring 346 between the damping block 341 and the slider 361, there will be a slight movement towards each other between the slider 361 and the damping block 341. At this time, the pressure sensor 345 is pressurized, and the pressure sensor 345 detects the pressure value and transmits the signal to the controller. The controller can start the monitoring component 2. When the slider 361 completes the movement, at this time, under the action of the preload spring 346, the damping block 341 will move downward relative to the slider 361, and the gap between the damping block 341 and the slider 361 becomes the maximum, and the value of the pressure sensor 345 is 0.

[0036] In a specific embodiment of the present invention, an infrared distance sensor (not shown) is provided at one end of the probe tube 32 near the bottom plate 11. Based on the above design, the infrared distance sensor can detect the change in the gap between the damping block 341 and the bottom end of the probe tube 32, and then obtain the change value of the crack width there.

[0037] In a specific embodiment of the present invention, a slide groove 122 is provided on the side plate 12 along its length direction, a moving seat 4 is slidably provided in the slide groove 122, a steering gear 41 is provided on the moving seat 4, the laser sensor 21, the ultrasonic sensor 22, and the monitoring camera 23 are all installed on the steering gear 41, and a driving device for driving the moving seat 4 to slide along the length direction of the slide groove 122 is also provided on the side plate 12. Based on the above design, when the probe 33 triggers the component 3 at a certain place and detects that the crack has changed, the driving device can drive the moving seat 4 to move to the corresponding position, so that the laser sensor 21, the ultrasonic sensor 22, and the monitoring camera 23 can monitor the crack condition at that place.

[0038] In a specific embodiment of the present invention, the driving device includes support plates 42 symmetrically arranged on the side plates 12 at both ends of the slide slot 122, a screw 43 rotatably arranged between a pair of support plates 42, and a stepper motor 44 fixed on one of the support plates 42 for driving the screw 43 to rotate, wherein the moving seat 4 is threadedly matched with the screw 43 through an internal thread block 45. Based on the above design, the stepper motor 44 can drive the screw 43 to rotate forward and backward, thereby driving the moving seat 4 to move in the slide slot 122.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bridge crack width tracking and monitoring device, comprising a mounting substrate and a monitoring component arranged on the mounting substrate, wherein the monitoring component comprises a laser sensor, an ultrasonic sensor, a monitoring camera, a wireless transceiver and a controller, wherein the mounting substrate comprises a bottom plate and a side plate vertically arranged on one side of the bottom plate, and mounting holes are evenly arranged at both ends of the bottom plate; It is characterized in that It also includes a plurality of probe trigger assemblies arranged on the side plate along the length direction of the side plate, the probe trigger assemblies including a sliding seat, a probe tube, a probe and a detection element, the sliding seat is installed on the side plate through a position adjustment component in a manner that allows free sliding in a direction perpendicular to the side plate, the sliding seat is provided with an axial hole adapted to the probe tube, the probe tube penetrates and slidably fits in the axial hole, and the probe tube can only slide in a direction perpendicular to the bottom plate, the probe is installed in the probe tube through an elastic member in a manner that allows damping sliding along the axial direction of the probe tube, one end of the probe close to the bottom plate penetrates the corresponding end of the probe tube to form an inserted tip, and the detection element is used to detect the movement of the probe; The position adjustment component comprises a strip-shaped positioning frame, one end of which is provided with a clamping piece clamped on the side of the side plate away from the bottom plate, the strip-shaped positioning frame is arranged perpendicular to the side plate, and the sliding seat is slidably adapted on the inner side of the strip-shaped positioning frame; The elastic member comprises a slider axially slidably arranged in the probe tube and a return spring arranged on the side of the slider away from the probe, wherein one end of the return spring away from the slider is connected to one end of the probe tube away from the bottom plate; The detection element comprises a damping block axially slidably arranged in the probe tube, a friction layer in contact with the inner wall of the probe tube is arranged on the outer side of the damping block, the damping block is located on the side of the slider close to the bottom plate, and a through hole for the probe to pass through is arranged on the damping block, a pull rod is evenly arranged along the circumferential direction on the side of the damping block close to the slider, and the pull rod passes through the slider and is fixedly connected to the limit block, a pressure sensor and a preload spring are also arranged on the side of the damping block close to the slider, and the stiffness coefficient of the reset spring is greater than the stiffness coefficient of the preload spring; An infrared distance measuring sensor is arranged at one end of the probe tube close to the bottom plate.

2. The bridge crack width tracking and monitoring device according to claim 1 is characterized in that: The side plate is provided with a slide groove along its length direction, a movable seat is slidably arranged in the slide groove, a steering gear is arranged on the movable seat, the laser sensor, ultrasonic sensor and monitoring camera are all installed on the steering gear, and the side plate is also provided with a driving device for driving the movable seat to slide along the length direction of the slide groove.

3. The bridge crack width tracking and monitoring device according to claim 2 is characterized in that: The driving device includes support plates symmetrically arranged on the side plates at both ends of the slide slot, a screw rod rotatably arranged between a pair of support plates, and a stepping motor fixed on one of the support plates for driving the screw rod to rotate, wherein the moving seat cooperates with the screw rod thread through an internal thread block.

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