Bridge and tunnel crack detection device

Abstract

The utility model belongs to the technical field of crack detection, and particularly relates to a bridge and tunnel crack detection device which comprises a microscopic camera and a detector host connected with the microscopic camera through a signal connecting line, the outer side of the microscopic camera is detachably connected with an adjusting piece used for assisting the microscopic camera in collecting a high-position crack image of the component to be measured, a main body part of the adjusting piece is provided with a distance detection piece electrically connected with the adjusting piece, and the distance between the adjusting piece and the crack to be measured is measured through the distance detection piece. And the length of the adjusting piece is correspondingly adjusted according to the measurement result, so that the microscopic camera can be attached to the crack. The design of the adjusting part allows the position of the microscopic camera to be adjusted according to the actual position of the crack to be measured, the camera is ensured to obtain the crack so as to obtain accurate image information, the integrated distance detection part can measure the distance between the adjusting part and the crack in real time, the length of the adjusting part is adjusted according to the measurement result, and the operation process is simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of crack detection technology field, concretely relates to a bridge and tunnel crack detection device. BACKGROUND

[0002] Bridge and tunnel as important traffic infrastructure, its structure safety is directly related to people's life and property safety, crack is one of common diseases in bridge and tunnel structure, early discovery and timely processing crack, can prolong its service life, bridge and tunnel crack detection includes crack length detection, width detection and depth detection etc., and for crack width detection, crack width detector is often used to measure, crack width detector in prior art mainly includes detector host computer, micro camera, signal connecting line etc., micro camera real -time transmission is gathered to video image to host computer, host computer is usually equipped with image processing software and measurement algorithm, can handle and measure image, obtain crack width numerical value, when using, need staff to hand micro camera and make it align crack place to gather crack image, but for crack located in high place of tunnel and bridge, still need staff to build stable safety platform or use professional climbing equipment to approach crack, difficult to flexibly adapt to crack detection demand of different height and angle, not only increase the work difficulty, still difficult to ensure personnel and equipment safety. SUMMARY

[0003] In view of the above problem, the utility model aims at providing a bridge and tunnel crack detection device to solve the problems in the background art.

[0004] To achieve the above object, the utility model adopts the technical scheme: a bridge and tunnel crack detection device, including micro camera for gathering crack image on the surface of the measured component and detector host computer connected with micro camera through signal connecting line and used for receiving and processing video image transmitted by micro camera, the outer side of micro camera is detachably connected with adjusting part for assisting micro camera to gather crack image on high place of the measured component, the main part of adjusting part is provided with distance detection part electrically connected with adjusting part, the distance between adjusting part and the measured crack is measured through distance detection part, and the length of adjusting part is adjusted according to the measurement result so as to facilitate the adhesion of micro camera and crack.

[0005] The utility model has the advantages that: the design of adjusting part allows adjusting the position of micro camera according to the actual position of the measured crack, ensures that the camera can obtain the crack, thereby obtaining the clearest and most accurate image information, the integrated distance detection part can measure the distance between adjusting part and crack in real time, and the length of adjusting part is adjusted according to the measurement result, which simplifies the operation process, reduces human error and improves the intelligent level of detection work.

[0006] In order to make the height of the microscopic camera flexible, the detection device further enhances the detection ability of different height cracks:

[0007] As a further improvement of the above technical solution: the adjusting part includes a connecting part connected with the microscopic camera through the connecting part, a telescopic part for adjusting the height of the microscopic camera, and a control part for controlling the telescopic length of the telescopic part.

[0008] The beneficial effects of the improvement are: the adjusting part is refined into a connecting part, a telescopic part and a control part, which makes the structure of the device more clear, the functions of each part are clear, the control part is a control system, and the telescopic part and the distance measuring detection part are electrically connected. The telescopic part is provided to make the height of the microscopic camera flexible, which further enhances the detection ability of the detection device for different height cracks.

[0009] In order to adjust the angle of the microscopic camera according to the measurement requirements:

[0010] As a further improvement of the above technical solution: the connecting part is a U-shaped mounting rack with a size larger than the microscopic camera, a connecting head is fixedly arranged at the part of the mounting rack aligned with the microscopic camera, and a driving part is arranged on the inner side of the mounting rack. The driving part acts on the connecting head to adjust the angle of the microscopic camera.

[0011] The beneficial effects of the improvement are: for cracks at different positions on the bridge or tunnel, the angle of the microscopic camera needs to be adjusted accordingly so that the microscopic camera can fit the crack. The driving part can be a stepping motor or a servo motor arranged on one side of the mounting rack, which can accurately adjust the angle of the microscopic camera. When the power source is running, the connecting head is driven to rotate accordingly, thereby driving the microscopic camera to rotate.

[0012] In order to facilitate the installation and disassembly of the microscopic camera and the adjusting part according to the requirements, so as to measure the width of the cracks at high and low places:

[0013] As a further improvement of the above technical solution: the connecting head and the driving part are detachably connected.

[0014] The beneficial effects of the improvement are: a fixed shaft is fixedly arranged on the output shaft of the driving part and on the mounting rack away from the driving part. The connecting head can be a semicircular arc-shaped plate. The opening of the connecting head faces downward. The connecting head is clamped on the fixed shaft, and then the connecting head and the fixed shaft are connected by using bolts. In this way, the angle of the microscopic camera can be adjusted, and the limiting camera and the adjusting part can be detachably connected, which facilitates the measurement of the width of the cracks at low places of the tunnel or bridge.

[0015] In order to make the detection device more convenient to carry or transport:

[0016] As a further improvement to the above technical solution: a flap for installing a distance detection component is movably connected to the side of the control unit away from the control panel. When the flap is flipped to fit against the control unit, it forms a receiving cavity with the control unit for storing the distance detection component.

[0017] The beneficial effects of this improvement are as follows: the end of the flap near the control unit is rotatably connected to the control unit. When no external force is applied to the flap, the flap can maintain a fixed angle with the control unit. When a distance measuring device is needed, the flap is flipped to the side away from the control unit, so that the distance measuring device is parallel to the component to be measured. The distance measuring device can be an infrared rangefinder, which uses the principle of different reflection intensities when infrared signals encounter obstacles to measure distance. When an infrared rangefinder is used, the flap is flipped to be parallel to the control unit, so that the flap and the side wall of the control unit form a cavity that can accommodate the distance measuring device, thus avoiding damage caused by the distance measuring device being exposed.

[0018] To avoid the situation where the flap flips outward and exposes the ranging detection device during transport:

[0019] As a further improvement to the above technical solution: the flap is detachably connected to the control unit, which facilitates the installation, disassembly or replacement of the distance detection component.

[0020] The beneficial effects of this improvement are as follows: the side wall of the control unit is provided with a slot corresponding to the flip plate, and both the slot and the flip plate are equipped with magnetic pieces. When the flip plate is flipped to fit against the control unit, it is magnetically connected with the magnetic pieces in the slot, thereby further increasing the firmness of the flip plate and the control unit, so as to prevent the flip plate from flipping outward and exposing the ranging detection component during the carrying process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the prior art of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0024] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0025] Figure 5 This is a side sectional view of the present invention.

[0026] Figure 6 This is an enlarged structural diagram of point B in this utility model.

[0027] In the figure: 1, microscopic camera; 2, signal connecting line; 3, detector host; 4, adjusting part; 5, distance detection part; 6, connecting part; 7, telescopic part; 8, control part; 9, mounting frame; 10, connecting head; 11, driving part; 12, flap; 13, slot; 14, bolt; 15, fixed shaft; 16, pin shaft. DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be described in detail below in conjunction with the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the utility model.

[0029] As Figure 1 shown, it is the existing crack detection device of the utility model, and it mainly comprises a microscopic camera 1 for collecting the surface crack image of the measured member and a detector host 3 connected with the microscopic camera 1 through a signal connecting line 2 and used for receiving and processing the video image transmitted by the microscopic camera 1, in use, the microscopic camera 1 is aligned with the crack, the position and focal length of the microscopic camera 1 are adjusted, the user can clearly see the outline and details of the crack, the microscopic camera 1 transmits the collected video image to the host in real time, the host is usually equipped with image processing software and measurement algorithm, can process and measure the image, and the width value of the crack is obtained, the above is the introduction of the existing crack detection device.

[0030] From the above, it can be seen that the existing crack detection device has the following defects when in use, for the cracks located at high places of tunnels and bridges, a stable safety platform needs to be built by the staff or professional climbing equipment needs to be used to approach the crack, it is difficult to flexibly adapt to the crack detection requirements of different heights and angles, not only increases the working difficulty, but also is difficult to ensure the safety of personnel and equipment, based on the above problems, the utility model uses the following improvement mode to solve.

[0031] As Figures 2-6As shown, a bridge and tunnel crack detection device includes a microscope camera 1 for acquiring images of cracks on the surface of the component to be tested, and a detection host 3 connected to the microscope camera 1 via a signal connection line 2 for receiving and processing video images transmitted by the microscope camera 1. An adjustment component 4 is detachably connected to the outside of the microscope camera 1 to assist the microscope camera 1 in acquiring images of cracks at higher elevations on the component to be tested. The main body of the adjustment component 4 is provided with a distance detection component 5 electrically connected to the adjustment component 4. The distance detection component 5 measures the distance between the adjustment component 4 and the crack to be measured. Based on the measurement result, the length of the adjustment component 4 is adjusted accordingly to facilitate the fit between the microscope camera 1 and the crack. The detection host 3 is connected to the microscope camera 1 via the signal connection line 2. A remote shutter controller is installed inside the detection host 3, allowing the user to remotely control the shutter of the microscope camera 1 within a certain range. When measuring cracks at heights, no staff need to climb to operate. This utility model is also equipped with a battery charger, which provides power to the crack width measuring instrument. It adopts charging technology and can store electrical energy in the battery inside the measuring instrument for use when needed. The design of the adjustment component 4 allows the position of the microscope camera 1 to be adjusted according to the actual location of the crack to be measured, especially the high and inaccessible locations. When the distance measuring detection component measures the distance to the crack to be 2 meters, the control unit 8 controls the extension length of the telescopic component 7 to be 2 meters. In addition, the staff has a certain height, which can ensure that the microscope camera 1 can reach the crack, thereby obtaining the clearest and most accurate image information. The integrated distance detection component 5 can measure the distance between the adjustment component 4 and the crack in real time and adjust the length of the adjustment component 4 according to the measurement results, simplifying the operation process, reducing human error, and improving the intelligence level of the detection work.

[0032] Furthermore, such as Figure 5 As shown, the adjusting component 4 is further subdivided into a connecting part 6, a telescopic part 7, and a control part 8, which are connected to the microscope camera 1 via the connecting part. The telescopic part 7 is used to adjust the height of the microscope camera 1. The control part 8 is used to control the telescopic length of the telescopic part 7, making the structure of the device clearer and the functions of each part more defined. The control part 8 is a control system, which is electrically connected to the telescopic part 7 and the ranging detection component. The telescopic part 7 can be a DC electric push rod, which is existing technology and is not shown in detail in the figure. It mainly includes a DC motor, a reducer, and a screw. Its working principle is as follows: when the motor starts, the current generates electromagnetic force through the coil, which drives the rotor to rotate. The rotational motion of the rotor is transmitted through the gears and connecting rods in the reducer. After deceleration, it is converted into a slower linear motion. The decelerated linear motion drives the screw to rotate. The nut on the screw moves axially in the guide tube. The movement of the nut drives the push rod to perform linear reciprocating motion. The setting of the telescopic part 7 allows the height of the microscope camera 1 to be flexibly adjusted, further enhancing the detection capability of the detection device for cracks of different heights.

[0033] Furthermore, such asFigure 2 As shown, the connecting part 6 is a U-shaped mounting rack 9 with a size larger than the micro camera 1, the connecting head 10 is fixedly arranged at the part of the mounting rack 9 aligned with the micro camera 1, and the inner side of the mounting rack 9 is provided with a driving part 11. For cracks at different positions on the bridge or tunnel, the angle of the micro camera 1 needs to be adjusted accordingly, so that the micro camera 1 can be in close contact with the crack. The driving part 11 can be a stepping motor or a servo motor arranged on one side of the mounting rack 9, which can accurately adjust the angle of the micro camera 1. When the power source is running, the connecting head 10 is driven to rotate accordingly, thereby driving the micro camera 1 to rotate. Meanwhile, a fixed shaft 15 is fixedly arranged on the output shaft of the driving part 11 and on the mounting rack 9 away from the driving part 11. The connecting head 10 can be a semicircular arc plate, and the opening of the connecting head 10 faces downward. The connecting head 10 is clamped on the fixed shaft 15, and then the connecting head 10 is connected with the fixed shaft 15 by using the bolt 14. Thus, the angle adjustment of the micro camera 1 can be realized, and the limiting camera can be detachably connected with the adjusting part 4 at the same time, which is convenient for measuring the width of the crack at the low part of the tunnel or bridge.

[0034] Further, as shown in Figure 2 As shown in Figure 6 The side wall of the control part 8 is provided with a mounting seat with a pin shaft 16, the pin shaft 16 penetrates through the flap 12 and is fixedly connected with the mounting seat. The surface of the pin shaft 16 has friction protrusions or textures, and is tightly fitted with the flap 12. When no external force is applied to the flap 12, the flap 12 can maintain a fixed angle with the control part 8. When the distance detection part 5 needs to be used, the flap 12 is flipped to the side away from the control part 8, so that the distance detection part is parallel to the measured member. The distance detection part can be an infrared range finder. The principle of different reflection intensities of infrared signals when encountering obstacles is used for distance measurement. When the infrared range finder is used, the flap 12 is flipped to be parallel to the control part 8, so that the flap 12 and the side wall of the control part 8 form a containing cavity that can accommodate the distance detection part, avoiding damage caused by exposure of the distance detection part. The side wall of the control part 8 is provided with a slot 13 corresponding to the flap 12, and both the slot 13 and the flap 12 are provided with magnetic attraction pieces. When the flap 12 is flipped to be attached to the control part 8, the magnetic attraction pieces in the slot 13 are magnetically connected, thereby further increasing the firmness of the flap 12 and the control part 8, so as to prevent the flap 12 from being flipped out and exposing the distance detection part during carrying.

[0035] It should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] The principles and implementation manners of the present application are described by using specific examples in the present application. The above example is only used to help understand the method and core idea of the present application. The above description is only the preferred implementation manner of the present application. It should be noted that due to the limited expression of the text, there are objectively infinite specific structures. For ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application. The above technical features can also be combined in an appropriate manner. These improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A bridge and tunnel crack detection device, comprising a microscope camera (1) for acquiring images of surface cracks on the component to be tested, and a detection host (3) connected to the microscope camera (1) via a signal connection line (2) and used for receiving and processing video images transmitted by the microscope camera (1), characterized in that: The micro camera (1) is detachably connected with an adjusting member (4) for assisting the micro camera (1) in collecting images of cracks of a component to be measured at a high position, a main body portion of the adjusting member (4) is provided with a distance detecting member (5) electrically connected with the adjusting member (4), the distance between the adjusting member (4) and the crack to be measured is measured through the distance detecting member (5), and the length of the adjusting member (4) is adjusted according to the measurement result so as to make the micro camera (1) adhere to the crack.

2. The bridge and tunnel crack detection apparatus of claim 1, wherein: The adjusting member (4) comprises a connecting portion (6) connected with the micro camera (1) through a connecting member, an extension portion (7) capable of adjusting the height of the micro camera (1), and a control portion (8) for controlling the extension length of the extension portion (7).

3. The bridge and tunnel crack detection apparatus of claim 2, wherein: The connecting portion (6) is a U-shaped mounting rack (9) with a size greater than the micro camera (1), a connecting head (10) is fixedly arranged at a position of the mounting rack (9) where the micro camera (1) is aligned, a driving member (11) is arranged on the inner side of the mounting rack (9), and the adjusting member (4) is adjusted in angle through the acting force of the driving member (11) acting on the connecting head (10).

4. The bridge and tunnel crack detection apparatus of claim 3, wherein: The connecting head (10) is detachably connected with the driving member (11).

5. The bridge and tunnel crack detection apparatus of claim 2, wherein: The control portion (8) is movably connected with a turning plate (12) for mounting the distance detecting member (5) on the side away from the control panel, and when the turning plate (12) is turned to adhere to the control portion (8), the turning plate (12) and the control portion (8) form a containing cavity for storing the distance detecting member (5).

6. The bridge and tunnel crack detection apparatus of claim 5, wherein: The turning plate (12) is detachably connected with the control portion (8), so that the distance detecting member (5) can be conveniently mounted, detached or replaced.

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