CN219430521U - Bridge crack parameter measurement device - Google Patents

Abstract

The application provides a bridge crack parameter measurement device, include: the camera comprises a bracket component, a camera and a microcomputer arranged on the bracket component; during measurement, the bracket component is erected above a detected crack of the bridge deck; wherein the camera is arranged below the microcomputer; the bracket assembly comprises a bracket body and a detachable pulley track; during measurement, the support body slides on the detachable pulley track, and the camera collects images of the detected cracks and transmits the images to the microcomputer. The method and the device can be used for rapidly identifying and detecting the surface cracks of the bridge.

Description

Bridge crack parameter measurement device

Technical Field

The application relates to the field of bridge crack detection, in particular to a bridge crack parameter measurement device.

Background

The poured concrete is often deformed and cracked due to environmental factors such as temperature, stress and the like, and concrete cracks are formed. Concrete cracking is a direct factor that leads to deterioration and damage of concrete. At present, the detection of concrete cracks on bridges is mainly completed manually by manpower. The detection method mainly comprises the steps of measuring the area of the crack and reading parameters by using a feeler gauge, a reading microscope, a width measuring instrument and other equipment. However, due to complex and changeable field environmental factors, subjective factors of workers and the like, manual detection can cause more false detection, parameter reading is inaccurate, and detection efficiency is low.

In order to reduce the false detection rate, the nondestructive testing instrument is applied to concrete crack detection and mainly comprises ultrasonic pulse detection, infrared thermal imaging detection, acoustic emission detection and the like, but the nondestructive testing instrument is complex in operation and needs a professional to operate, and a great amount of time is needed for detection.

Disclosure of Invention

To the problem among the prior art, this application provides a bridge crack parameter measurement device, can carry out the discernment and the detection of bridge surface crack fast.

In order to solve the technical problems, the application provides the following technical scheme:

the application provides a bridge crack parameter measurement device, include: the camera comprises a bracket component, a camera and a microcomputer arranged on the bracket component; during measurement, the bracket component is erected above a detected crack of the bridge deck;

wherein the camera is arranged below the microcomputer; the bracket assembly comprises a bracket body and a detachable pulley track; during measurement, the support body slides on the detachable pulley track, and the camera collects images of the detected cracks and transmits the images to the microcomputer.

Further, the bracket body includes an objective table; the microcomputer is fixedly connected with the objective table through a clamping structure.

Further, the clamping structure comprises a cushion block and a fixing bolt which are arranged on the upper surface of the objective table.

Further, the lower surface of the objective table is provided with an annular light supplementing lamp.

Further, a through hole is formed in the objective table; and the camera shoots the detected crack through the through hole.

Further, the bracket body further comprises a plurality of telescopic components; the telescopic assembly comprises a cross rod, a telescopic longitudinal rod and rollers arranged at the lower end of the telescopic longitudinal rod.

Further, the telescopic longitudinal rod comprises a first rod body, a second rod body and a fixing screw; the second rod body is movably sleeved outside the first rod body, and the second rod body is in telescopic limiting through the fixing screw.

Further, the telescopic longitudinal rod is provided with a graduated scale with an indent.

Further, the detachable pulley track is specifically a plurality of guide rails which are arranged in parallel; during measurement, the roller rolls on the guide rail.

Further, the guide rail comprises a plurality of rail segments; each rail section is connected through a rail connecting buckle.

Further, the guide rail is provided with a weight for fixing the guide rail to the deck.

Further, a display screen is arranged on the microcomputer and is electrically connected with the camera so as to display the image of the detected crack shot by the camera.

Further, a data memory is arranged in the microcomputer and is electrically connected with the camera so as to store images of the detected cracks shot by the camera.

Further, a data transmission interface is arranged in the microcomputer, and the data transmission interface is electrically connected with the data memory and is used for transmitting the image of the detected crack.

To the problem among the prior art, the bridge crack parameter measurement device that this application provided can carry out the discernment and the detection of bridge surface crack fast, reduces the influence that complex environmental factor brought to bridge crack parameter measurement, has reduced measuring error, has guaranteed measuring accuracy, has realized the nondestructive test to bridge structure, and its equipment operation is simple, conveniently carries, and the mobility is strong.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of a bridge crack parameter measurement device in an embodiment of the present application;

FIG. 2 is a side view of the snap-in structure of the present embodiment;

FIG. 3 is a schematic structural view of a fixing member according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a rail connection buckle in an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating movement of a bridge crack parameter measurement device according to an embodiment of the present disclosure;

FIG. 6 is a further schematic view of a telescoping side rail according to an embodiment of the present application;

FIG. 7 is a schematic structural perspective view of a locking structure according to an embodiment of the present disclosure;

fig. 8 is a top view of the engaging structure in the embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In an embodiment, referring to fig. 1, in order to quickly identify and detect a crack on a bridge surface, the application provides a bridge crack parameter measurement device, including: a bracket assembly, a camera and a microcomputer 1 arranged on the bracket assembly; during measurement, the bracket component is erected above a detected crack of the bridge deck; wherein the camera 4 is disposed below the microcomputer 1; the bracket component comprises a bracket body and a detachable pulley track 3; during measurement, the bracket body slides on the detachable pulley track 3, and the camera 4 collects images of the detected cracks and transmits the images to the microcomputer 1; the objective table is provided with a through hole 5; the camera 4 shoots the crack to be detected through the through hole 5.

It is understood that the device can be used for detecting bridge cracks. Wherein the bridge includes, but is not limited to, a concrete structure bridge.

When measuring, need to erect the support subassembly above the crack of being surveyed of bridge floor. If the detected crack is relatively smaller and shorter, the bracket body can slide to the position right above the detected crack through the detachable pulley track 3. In specific implementation, since the microcomputer 1 is disposed on the bracket assembly and the camera 4 is fixed below the microcomputer 1, the height of the camera 4 relative to the bridge deck (the crack to be detected) can be adjusted by adjusting the height of the bracket body, so that the camera 4 can shoot the whole view of the crack to be detected. If the detected crack is relatively large and long, the detachable pulley track 3 can be laid along the detected crack (see fig. 1), in this case, the bracket body can slide along the extending direction of the detected crack through the detachable pulley track 3, so that the camera 4 can shoot the whole appearance of the detected crack.

It should be noted that the bracket body includes an objective table 6; the microcomputer 1 is fixedly connected with the objective table 6 through a clamping structure. Referring to fig. 2, 3, 7 and 8, the engaging structure includes a pad 7 and a fixing bolt 8 disposed on an upper surface of the stage 6.

In one embodiment, referring to fig. 1, the lower surface of the stage 6 is provided with an annular light filling lamp 9. In a darker image acquisition environment, the annular light supplementing lamp 9 can enable the camera 4 to acquire a clearer picture of the detected crack. The annular light supplementing lamp 9 can be electrically connected with the microcomputer 1, and an operator of the device can adjust the on-off and brightness of the annular light supplementing lamp 9 through the microcomputer 1.

In one embodiment, referring to fig. 1, the stand body further includes a plurality of telescoping assemblies; the telescopic assembly comprises a cross rod 10, a telescopic longitudinal rod 11 and a roller 12 arranged at the lower end of the telescopic longitudinal rod 11, wherein the roller 12 is preferably a universal wheel; the telescopic longitudinal rod 11 comprises a first rod body 13, a second rod body 14 and a fixing screw 15; the second rod body 14 is movably sleeved outside the first rod body 13 and is subjected to expansion limiting through a fixed screw 15; the telescopic longitudinal bar 11 is provided with a scale with a dent. For convenience of drawing, only one telescopic rail 11 is shown in fig. 1, and in fact, one telescopic rail 11 is corresponding to each end of each cross rail 10 to support the cross rail 10.

In one embodiment, referring to fig. 6, the telescopic longitudinal bar 11 may also adopt a multi-stage telescopic combination, taking three stages as an example: the length of each stage can be formulated according to the needs, for example, the length of each stage is that of each second stage, the length of each third stage is that of each graduated scale, the graduated scale is that a big lattice is 5cm, and the precision is 0.1cm. Wherein, the roller 12 is arranged at the lower end of the telescopic longitudinal rod 11; the telescopic longitudinal bar 11 comprises a first bar body 13, a second bar body 14, a third bar body 23 and a fixing screw 15.

In one embodiment, the cross bar 10 and the telescopic longitudinal bar 11 can be connected by using a replaceable interface, and can be installed or detached at any time according to the requirement. For example, a screw direct connection may be employed.

It can be understood that there may be a plurality of telescopic assemblies, which are set according to actual engineering requirements, and only four telescopic assemblies are shown in fig. 1, but the present application is not limited thereto.

The above adjustment of the height of the camera 4 relative to the bridge deck (the crack to be measured) by adjusting the height of the bracket body is realized by adjusting the telescopic longitudinal rod 11. Considering that the microcomputer 1 is provided with a display screen, the display screen is electrically connected with the camera 4, and can display the image of the detected crack shot by the camera 4, therefore, an operator of the device can see whether the camera 4 shoots the whole picture of the detected crack through the display screen, if necessary, the fixing screw 15 can be loosened to change the movable sleeving position of the second rod body 14 relative to the first rod body 13, after the image of the detected crack shot by the camera 4 is clear, the fixing screw 15 can be fastened, so that the length of the telescopic longitudinal rod 11 is fixed, and the height of the camera 4 relative to the bridge deck (detected crack) is fixed. It should be noted that, in the embodiment of the present application, the first rod 13 is relatively thin, the second rod 14 is relatively thick, and the diameter of the second rod 14 exactly matches the diameter of the first rod 13.

Since the telescopic longitudinal bars 11 are provided with the scale with the dent (for recording the height from the ground of the current camera 4), when the photographing angle is proper, the lengths of the 4 telescopic longitudinal bars displayed in the image are basically consistent in the image photographed by the camera. If the photographing angle is not appropriate, the device operator may also input the current reading to the microcomputer 1.

It should be noted that the display screen may be a touch-controllable lcd screen 16, and the device operator may input the current reading to the microcomputer 1 through the touch-controllable lcd screen 16. The functions of the display screen further include: displaying the acquired image, displaying the width value, the length value and the area value of the detected crack, saving or deleting the image, naming the displayed image, adjusting the light brightness of the annular light supplementing lamp 9 and the like.

The concrete processing method of the microcomputer 1 for the measured parameters is the prior art, and can be seen in Wang Chao, gu He, zhang Sherong, shi Zheng and Wang Xiaohua, the concrete surface crack quantification efficient identification method based on images [ J ] the hydroelectric power school newspaper, 2021,40 (03): 134-144'// Zhou Ying and Liu Tong, the concrete crack identification based on computer vision [ J ]. The university of the same aid (natural science edition), 2019,47 (09): 1277-1285 ]// the picture of the detected crack shot by the camera 4 and the reading on the scale are input into the microcomputer 1, and the microcomputer 1 can process the picture to obtain the parameter result of the detected crack.

In one embodiment, a data memory is disposed in the microcomputer 1, and the data memory is electrically connected to the camera 4 to store the image of the crack to be detected captured by the camera 4.

In one embodiment, a data transmission interface is disposed in the microcomputer 1, and the data transmission interface is electrically connected to the data memory and is used for transmitting the image of the crack to be detected.

In one embodiment, referring to fig. 1, the detachable pulley track 3 is embodied as a plurality of parallel guide rails 21; the roller 12 rolls on the guide rail 21 during measurement. Fig. 1 shows only two tracks running in parallel, but the present application is not limited thereto. With respect to telescoping longitudinal bars 11, only one is shown in FIG. 1; in practice, there are at least four to support the stage 6. Referring to fig. 5, when the camera 4 performs sliding photographing in the direction of the guide rails 21, the relative position between the telescopic longitudinal bars 11 can be adjusted such that two of the four rollers 12 are located on one guide rail 21 and the other two are located on the other guide rail 21.

In one embodiment, referring to FIG. 1, the rail 21 includes a plurality of rail segments 17 (one labeled in the figure for clarity of illustration); the rail segments 17 are connected by rail connection clips. An enlarged schematic view of a specific rail connection buckle is shown in fig. 4.

It will be appreciated that, in view of the large difference in the lengths of the cracks to be measured in engineering, the guide rail 21 may be provided in the form of a multi-rail segment 17 splice for the purpose of providing the measuring device of the present application with more versatility and flexibility. The operator of the device can splice a corresponding number of rail segments 17 according to the length of the crack to be measured, so that the length of the guide rail 21 can meet the measurement requirement.

Specifically, in one embodiment, referring to fig. 1 and 4, one end of each track section 17 is provided with an elastic metal card 18, and the elastic metal card 18 is provided with a hemispherical clamping point 19; the other end of each section of rail 17 is provided with an elastic metal clamping groove 20, and the elastic metal clamping groove 20 is provided with a bayonet (usually a circular through hole 20) matched with the hemispherical clamping point 19; when the rail section 17 is spliced, a device operator pushes a hemispherical clamping point 19 on the elastic metal clamping piece 18 into a bayonet on the elastic metal clamping groove 20 so as to realize clamping of the rail section 17; when the rail section 17 is disassembled, since the elastic metal card 18 can elastically deform within a certain range, an operator of the device can push the hemispherical clamping points 19 on the elastic metal card 18 out of the bayonets on the elastic metal clamping grooves 20, so that the rail section 17 is disassembled.

It should be noted that, when the bracket body slides on the guide rail 21, the camera 4 is also driven to perform directional movement, in this case, the camera 4 captures a plurality of images, and by using an image stitching algorithm (https:// www.cnblogs.com/skyfsm/p/7411961. Html)// for example, a method and a device for stitching a panoramic image of cn201610196006. X//, all the images are combined into a long image, so that the crack measurement accuracy can be improved. In particular, in this case, continuous sliding can be maintained, and during sliding, the camera automatically photographs continuously, thereby obtaining a plurality of images.

In one embodiment, referring to fig. 1, the rail 21 is provided with weights 22 at both ends for fixing the rail 21 to the deck.

From the above description, the bridge crack parameter measurement device provided by the application can be used for rapidly identifying and detecting the bridge surface cracks, reducing the influence of complex environmental factors on bridge crack parameter measurement, reducing measurement errors, ensuring measurement accuracy, realizing nondestructive detection of bridge structures, and has the advantages of simple equipment operation, convenience in carrying and strong mobility.

In one embodiment, the method of using the device may be as follows:

(1) Assembling the instrument, fixing the object stage 6 and the telescopic rod according to the size of the crack area, and adjusting the length of the telescopic rod to make the crack picture shot by the camera 4 clearer;

(2) After the objective table 6 is arranged, the microcomputer is aligned with the buckle and is placed on the objective table 6 for fixing, the computer is opened for pre-observation, the camera 4 is ensured to observe cracks normally, the lengths of the four telescopic rods are recorded, and the lengths are input into the computer; (device fixing is performed, the distance from the initial crack to the camera 4 is input, and the accuracy of crack area calculation is ensured)

(3) After the initial data are set completely, starting detection work, identifying the initial cracks by a microcomputer, photographing and storing pictures, calculating the area of the cracks, wherein the data comprise the length, the width and the area of the cracks, and one piece of crack picture corresponds to one group of data; (identifying cracks, calculating crack area, and storing data)

(4) After detecting the crack, the data is automatically saved, other cracks are detected, the device is directly moved, the length of the telescopic rod is adjusted according to the size of the crack, and recognition and detection are performed again. (detection can be performed rapidly, and equipment is convenient and rapid)

The innovation point of this device lies in at least:

the influence of environmental factors is reduced, and the accuracy of the detection result is improved.

And the area of the concrete crack is rapidly detected, so that the detection efficiency is improved.

The novel concrete crack area detection device that designs can be better, more accurate, more convenient detect crack area, aassessment structure security.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present specification. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing is merely an example of an embodiment of the present disclosure and is not intended to limit the embodiment of the present disclosure. Various modifications and variations of the illustrative embodiments will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the embodiments of the present specification, should be included in the scope of the claims of the embodiments of the present specification.

Claims (10)

1. Bridge crack parameter measurement device, characterized by, include: the camera comprises a bracket component, a camera and a microcomputer arranged on the bracket component; during measurement, the bracket component is erected above a detected crack of the bridge deck;

wherein the camera is arranged below the microcomputer; the bracket assembly comprises a bracket body and a detachable pulley track; during measurement, the support body slides on the detachable pulley track, and the camera collects images of the detected cracks and transmits the images to the microcomputer.

2. The bridge crack parameter measurement device of claim 1, wherein the bracket body comprises an objective table; the microcomputer is fixedly connected with the objective table through a clamping structure.

3. The bridge crack parameter measurement device according to claim 2, wherein the clamping structure comprises a cushion block and a fixing bolt arranged on the upper surface of the objective table.

4. The bridge crack parameter measurement device according to claim 2, wherein the lower surface of the stage is provided with an annular light supplement lamp.

5. The bridge crack parameter measuring device according to claim 2, wherein a through hole is formed in the objective table; and the camera shoots the detected crack through the through hole.

6. The bridge crack parameter measurement device of claim 2, wherein the bracket body further comprises a plurality of telescoping assemblies; the telescopic assembly comprises a cross rod, a telescopic longitudinal rod and rollers arranged at the lower end of the telescopic longitudinal rod.

7. The bridge crack parameter measurement device according to claim 6, wherein the telescopic longitudinal rod comprises a first rod body, a second rod body and a fixing screw; the second rod body is movably sleeved outside the first rod body, and the second rod body is in telescopic limiting through the fixing screw.

8. The bridge crack parameter measurement device according to claim 6, wherein the telescopic longitudinal rod is provided with a scale with a dent.

9. The bridge crack parameter measurement device according to claim 6, wherein the detachable pulley track is specifically a plurality of parallel guide rails; during measurement, the roller rolls on the guide rail.

10. The bridge crack parameter measurement device of claim 9, wherein the rail comprises a plurality of rail segments; each rail section is connected through a rail connecting buckle.