CN212904569U

CN212904569U - Crack monitoring device for detecting health condition of bridge

Info

Publication number: CN212904569U
Application number: CN202021547686.3U
Authority: CN
Inventors: 章龙; 唐细彪; 伍贤智; 胡续鹏; 张宗强; 杨航; 夏恒; 邱景奎
Original assignee: China Railway Major Bridge Engineering Group Co Ltd MBEC; China Railway Bridge Science Research Institute Ltd; China Railway Bridge Research Technology Co Ltd
Current assignee: China Railway Major Bridge Engineering Group Co Ltd MBEC; China Railway Bridge Science Research Institute Ltd; China Railway Bridge Research Technology Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-06
Anticipated expiration: 2030-07-30

Abstract

The application relates to a crack monitoring devices for detecting bridge health status belongs to bridge health monitoring technical field, includes: the bottom rod is horizontally arranged below the bridge along the transverse bridge direction of the bridge and is arranged at an interval with the bridge, and an image acquisition device for monitoring cracks at the bottom of the bridge is arranged on the bottom rod; the two vertical rods are respectively positioned on two sides of the bridge and are respectively detachably connected with two ends of the bottom rod; the two groups of moving mechanisms are fixedly connected to the tops of the two vertical rods respectively, and are connected to the two sides of the bridge in a sliding mode respectively and move in the longitudinal bridge direction of the bridge. The crack monitoring device's of this application installation operation is simple more, convenient, utilizes moving mechanism and montant to remove along vertical bridge on the bridge flange board simultaneously, drives the image acquisition device on the sill bar and removes in the below of bridge, great improvement monitoring efficiency, can not influence normal traffic again, reduced manpower and materials.

Description

Crack monitoring device for detecting health condition of bridge

Technical Field

The application relates to the technical field of bridge health monitoring, in particular to a crack monitoring device for detecting the health condition of a bridge.

Background

With the rapid development of economy in China, a large number of bridge buildings are built, the monitoring of the health condition of the bridge buildings is particularly important, for the bridge buildings mainly with reinforced concrete structures, the monitoring of cracks is an important work, the cracks develop to a certain degree, the corrosion of reinforcing steel bars is accelerated, further, an undetected result is caused, and regular inspection needs to be carried out on the cracks regularly.

In concrete structures, cracks are often found on the bottom of the structure due to the tension in the lower part. The occurrence and development of the bridge bottom cracks are important expressions of health problems of the bridge, so that the monitoring of the bridge bottom cracks is an important component of bridge health monitoring.

Traditionally, let the monitoring personnel carry out artifical monitoring at the bottom of a bridge with the telescope, but this kind of mode, monitoring personnel are far away from the bridge bottom surface, and monitoring speed is slow, the reliability is poor, hardly forms comprehensive accurate monitoring to whole bridge bottom surface.

The other improved mode is that a monitoring vehicle is used for carrying a working platform which is supported by a support and can extend into the bottom surface of the bridge, the monitoring vehicle travels on the bridge, and monitoring personnel can observe the working platform by naked eyes at a short distance. In addition, the monitoring result of the method is easily affected by the quality of monitoring personnel, the reliability is still not high, and the monitoring personnel need to stand on a working platform at the bottom of the bridge, so that the safety is not enough.

The other monitoring mode is that a sensor is fixedly arranged on a bridge or a fixed video monitoring system adopting a wheel cable moving type structure is arranged at the bottom of the bridge, the monitoring range of the monitoring system is limited, frequent maintenance is needed to ensure normal operation, but the daily maintenance of the monitoring system fixedly arranged at the bottom of the bridge is very difficult, and each monitoring system can only monitor the local range of one bridge, so the monitoring efficiency of the mode is low and the cost is high.

Disclosure of Invention

The embodiment of the application provides a crack monitoring devices for detecting bridge health to solve the bridge crack monitoring speed among the correlation technique slow, the reliability is poor, hardly forms the not enough of comprehensive accurate monitoring to whole bridge bottom surface.

The embodiment of the application provides a crack monitoring devices for detecting bridge health status, includes:

the bottom rod is horizontally arranged below the bridge along the transverse bridge direction of the bridge and is arranged at an interval with the bridge, and an image acquisition device for monitoring cracks at the bottom of the bridge is arranged on the bottom rod;

the two vertical rods are respectively positioned on two sides of the bridge and are respectively detachably connected with two ends of the bottom rod;

the moving mechanisms are arranged in two groups, the two groups of moving mechanisms are respectively and fixedly connected to the tops of the two vertical rods, and the two groups of moving mechanisms are respectively and slidably connected to the two sides of the bridge and move along the longitudinal direction of the bridge.

In some embodiments: the top of sill bar is equipped with a plurality of mounting discs, and a plurality of mounting discs set up along the length direction interval of sill bar, image acquisition device is equipped with a plurality ofly, and a plurality of image acquisition device are fixed mounting respectively on a plurality of mounting discs.

In some embodiments: the height adjusting mechanism is characterized in that a loop bar for adjusting the height of the bottom bar is arranged between the top of the vertical bar and the moving mechanism, the loop bar is connected with the vertical bar in a sleeved mode, and an adjusting mechanism for adjusting the connecting position of the loop bar and the vertical bar is arranged between the loop bar and the vertical bar.

In some embodiments: the adjusting mechanism comprises a positioning rod penetrating through a vertical rod and a sleeve rod, a fixing sleeve is fixed at one end of the positioning rod, the positioning rod penetrates through a through hole in the sleeve rod to be inserted into a corresponding positioning hole formed in the vertical rod, and the positioning holes are formed in the vertical rod in a spaced mode along the length direction of the vertical rod.

In some embodiments: the locating device is characterized in that an extension spiral spring is sleeved on the locating rod, one end of the extension spiral spring is fixedly connected with the fixed sleeve, the other end of the extension spiral spring is fixedly connected with the sleeve rod, and the extension spiral spring is used for driving the locating rod to penetrate into the locating hole.

In some embodiments: the vertical rods are all provided with image acquisition devices for monitoring cracks on the lateral side of the bridge, and the image acquisition devices are wireless cameras.

In some embodiments: the moving mechanism comprises a top plate, a bottom plate and a vertical plate connected between the top plate and the bottom plate, the top plate and the bottom plate are respectively connected with the vertical plate in a welding mode, the top plate, the bottom plate and the vertical plate form an Contraband-shaped structure, a plurality of pulley blocks are arranged at the top of the bottom plate, a plurality of pulley blocks are arranged at the bottom of the top plate, and the pulley blocks are rotatably connected with the bridge.

In some embodiments: the assembly pulley is connected with the top plate through finish rolling deformed steel bars, the finish rolling deformed steel bars are fixedly connected with the top plate through nuts, the finish rolling deformed steel bars are used for adjusting the distance between the assembly pulley and the top plate, and the bottom plate is fixedly connected with the assembly pulley.

In some embodiments: the pulley block on the bottom plate is four, and four pulley block fixed connection are in the four corners of bottom plate, the pulley block on the roof is four, and four pulley block fixed connection are in the four corners of roof.

In some embodiments: the bottom rod and the vertical rod are made of steel pipe materials.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a crack monitoring devices for detecting bridge health status, because this crack monitoring devices installs image acquisition device on the sill bar, can stretch into the sill bar the bottom of waiting to monitor the bridge when the monitoring, utilizes image acquisition device on the sill bar to make a video recording the monitoring. The moving mechanism of mutual symmetry can directly overlap to waiting to monitor on the flange board of bridge, make this crackle monitoring device's installation operation simpler, and is convenient, utilize moving mechanism and montant to remove along vertical bridge on the bridge flange board simultaneously, drive the image acquisition device on the sill bar and remove in the below of bridge, great improvement monitoring efficiency, can not influence normal traffic again, manpower and materials have been reduced, design novelty more, gyro wheel is connected with the finish rolling screw-thread steel among the moving mechanism, be applicable to the bridge flange board of different thickness, the suitability is stronger.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Reference numerals:

1-a bottom bar; 2-a loop bar; 3-a moving mechanism; 4-an image acquisition device; 41-mounting a disc; 42-a wireless camera; 51-a nut; 52-finish rolling the deformed steel bar; 53-a roller; 6-vertical rod; 61-positioning rod; 62-fixing the sleeve; 63-extension coil spring; 64-locating holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a crack monitoring device for detecting bridge health condition, which can solve the problems that in the related art, the bridge crack monitoring speed is low, the reliability is poor, and the whole bridge bottom surface is difficult to be monitored comprehensively and accurately.

Referring to fig. 1, an embodiment of the present application provides a crack monitoring device for detecting a health condition of a bridge, including:

the bottom rod 1 is horizontally arranged below the bridge along the transverse bridge direction of the bridge and is arranged at an interval with the bridge, the length of the bottom rod 1 is larger than the width of the bridge, an image acquisition device 4 used for monitoring cracks at the bottom of the bridge is arranged on the bottom rod 1, and the image acquisition device 4 is used for acquiring image information or video information of the cracks at the bottom of the bridge.

Montant 6, this montant 6 are equipped with two, and two montants 6 are located the both sides of bridge respectively and can dismantle with the both ends of sill bar 1 respectively and be connected, montant 6 with sill bar 1 mutually perpendicular be connected. The bottom rod 1 and the vertical rod 6 are both made of square steel pipe materials. The vertical rods 6 are all provided with image acquisition devices 4 for monitoring cracks on the lateral side of the bridge, and the image acquisition devices 4 are wireless cameras 42.

The moving mechanisms 3 are provided with two groups, the two groups of moving mechanisms 3 are respectively and fixedly connected to the tops of the two vertical rods 6, and the two groups of moving mechanisms 3 are respectively and slidably connected to the two sides of the bridge and move along the longitudinal bridge direction of the bridge. Two sets of moving mechanism 3 respectively with the flange board sliding connection of bridge both sides, moving mechanism 3 and montant 6 drive bottom bar 1 and image acquisition device 4 and move along the longitudinal bridge at the bottom of bridge.

In some alternative embodiments: referring to fig. 1, the crack monitoring device for detecting the health condition of a bridge is provided in the embodiments of the present application, a plurality of mounting discs 41 are mounted on the top of a bottom rod 1 of the crack monitoring device through bolts, and the mounting discs 41 are arranged at intervals along the length direction of the bottom rod 1. A plurality of image capturing devices 4 are provided, and the plurality of image capturing devices 4 are fixedly mounted on the plurality of mounting plates 41, respectively.

The number of the mounting discs 41 is the same as that of the image acquisition devices 4, the number of the mounting discs 41 and that of the image acquisition devices 4 can be specifically set according to the width of the bridge, and the plurality of image acquisition devices 4 can completely acquire images and video information in the transverse bridge direction of the bridge.

In some alternative embodiments: referring to fig. 1, in the crack monitoring device for detecting the health condition of a bridge, a loop bar 2 for adjusting the elevation of a bottom bar 1 is arranged between the top of a vertical bar 6 of the crack monitoring device and a moving mechanism 3, the loop bar 2 is connected with the vertical bar 6 in a sleeved mode, and the loop bar 2 and the vertical bar 6 can move in a telescopic mode along the length direction. The distance between the bottom rod 1 and the bottom of the bridge can be adjusted by adjusting the length between the loop bar 2 and the vertical bar 6. An adjusting mechanism for adjusting the connecting position of the loop bar 2 and the vertical bar 6 is arranged between the loop bar 2 and the vertical bar 6.

The adjusting mechanism comprises a positioning rod 61 penetrating through the vertical rod 6 and the loop bar 2, a fixing sleeve 62 is fixed at one end of the positioning rod 61, the positioning rod 61 penetrates through a through hole in the loop bar 2 to be inserted into a positioning hole 64 correspondingly formed in the vertical rod 6, and a plurality of positioning holes 64 are formed in the vertical rod 6 at equal intervals along the length direction of the vertical rod 6. The telescopic motion of the loop bar 2 and the vertical bar 6 along the length direction is realized by changing the connection of the positioning rod 61 penetrating into the positioning holes 64 respectively.

The positioning rod 61 is sleeved with a tension coil spring 63, one end of the tension coil spring 63 is fixedly connected with the fixing sleeve 62, the other end of the tension coil spring 63 is fixedly connected with the loop bar 2, and the tension coil spring 63 is used for driving the positioning rod 61 to penetrate into the positioning hole 64.

In some alternative embodiments: referring to fig. 1 and 2, a crack monitoring device for detecting health conditions of a bridge is provided according to an embodiment of the present application, a moving mechanism 3 of the crack monitoring device includes a top plate, a bottom plate, and a vertical plate connected between the top plate and the bottom plate, the top plate and the bottom plate are respectively connected to the vertical plate in a welding manner, and the top plate, the bottom plate, and the vertical plate together form an "Contraband" shaped structure. The top of bottom plate is equipped with 4 assembly pulley 53, and 4 assembly pulley 53 fixed connection are in the four corners of bottom plate. The bottom of the top plate is provided with 4 pulley blocks 53, and the 4 pulley blocks 53 are fixedly connected to four corners of the top plate; the pulley block 53 is rotatably connected with a flange plate of the bridge.

The pulley block 53 is connected with the top plate through finish rolling deformed steel bar 52, the finish rolling deformed steel bar 52 is fixedly connected with the top plate through a nut 51, the finish rolling deformed steel bar 52 is used for adjusting the distance between the pulley block 53 and the top plate, and the bottom plate is fixedly connected with the pulley block 53.

Principle of operation

During the use, at first according to actual conditions's needs, at the bottom extension of loop bar 2 or shorten montant 6, adjust the length between loop bar 2 and montant 6, and then adjust the interval between the image acquisition device 4 at bottom bar 1 top and the bridge bottom. Treat to accomplish the back to the length adjustment between regulation loop bar 2 and the montant 6, under extension coil spring 63's pulling force effect, through fixed cover 62 with the one end of locating lever 61 taut to the montant 6 on the locating hole 64 of corresponding position, fix between loop bar 2 and the montant 6, on covering 3 covers the flange board to the bridge with moving mechanism after that, moving mechanism 3 supports on the flange board, the roll that utilizes gyro wheel 53 removes the device, wireless camera 42 makes a video recording the monitoring to the bottom and the lateral part of bridge on the sill bar 1 simultaneously, can realize the monitoring work to the bridge crack like this.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crack monitoring device for detecting the health of a bridge, comprising:

the bottom rod (1) is horizontally arranged below the bridge along the transverse bridge direction of the bridge and is arranged at an interval with the bridge, and an image acquisition device for monitoring cracks at the bottom of the bridge is arranged on the bottom rod (1);

the number of the vertical rods (6) is two, and the two vertical rods (6) are respectively positioned on two sides of the bridge and are respectively detachably connected with two ends of the bottom rod (1);

the moving mechanism (3), moving mechanism (3) are equipped with two sets ofly, and two sets of moving mechanism (3) are fixed connection respectively at the top of two montants (6), and two sets of moving mechanism (3) sliding connection just move along the longitudinal bridge of bridge to the both sides of bridge respectively.

2. A crack monitoring device for detecting the health of a bridge as claimed in claim 1, characterized in that:

the top of sill bar (1) is equipped with a plurality of mounting discs, and a plurality of mounting discs set up along the length direction interval of sill bar (1), image acquisition device is equipped with a plurality ofly, and a plurality of image acquisition device are fixed mounting respectively on a plurality of mounting discs.

3. A crack monitoring device for detecting the health of a bridge as claimed in claim 1, characterized in that:

be equipped with loop bar (2) of adjusting sill bar (1) elevation between the top of montant (6) and moving mechanism (3), loop bar (2) cup joint with montant (6) and are connected, be equipped with the adjustment mechanism who adjusts loop bar (2) and montant (6) hookup location between loop bar (2) and montant (6).

4. A crack monitoring device for detecting the health of a bridge as claimed in claim 3, characterized in that:

adjustment mechanism is including locating lever (61) that passes montant (6) and loop bar (2), the one end of locating lever (61) is fixed with fixed cover (62), locating lever (61) pass the through-hole on loop bar (2) and inject in locating hole (64) that correspond to set up on montant (6), just locating hole (64) are equipped with a plurality ofly along the length direction interval of montant (6) on montant (6).

5. A crack monitoring device for detecting the health of a bridge as claimed in claim 4, characterized in that:

the positioning rod (61) is sleeved with a stretching spiral spring (63), one end of the stretching spiral spring (63) is fixedly connected with the fixing sleeve (62), the other end of the stretching spiral spring (63) is fixedly connected with the sleeve rod (2), and the stretching spiral spring (63) is used for driving the positioning rod (61) to penetrate into the positioning hole (64).

6. A crack monitoring device for detecting the health of a bridge as claimed in claim 1, characterized in that:

the vertical rods (6) are all provided with image acquisition devices for monitoring cracks on the lateral side of the bridge, and the image acquisition devices are wireless cameras.

7. A crack monitoring device for detecting the health of a bridge as claimed in claim 1, characterized in that:

the moving mechanism (3) comprises a top plate, a bottom plate and a vertical plate connected between the top plate and the bottom plate, the top plate and the bottom plate are respectively connected with the vertical plate in a welded mode, the top plate, the bottom plate and the vertical plate form an Contraband-shaped structure, a plurality of pulley blocks (53) are arranged at the top of the bottom plate, a plurality of pulley blocks (53) are arranged at the bottom of the top plate, and the pulley blocks (53) are rotatably connected with the bridge.

8. A crack monitoring device for detecting the health of a bridge as claimed in claim 7, characterized in that:

the assembly pulley (53) is connected with the top plate through finish rolling deformed steel bar (52), the finish rolling deformed steel bar (52) is fixedly connected with the top plate through a nut (51), the finish rolling deformed steel bar (52) is used for adjusting the distance between the assembly pulley (53) and the top plate, and the bottom plate is fixedly connected with the assembly pulley (53).

9. A crack monitoring device for detecting the health of a bridge as claimed in claim 7, characterized in that:

the four pulley blocks (53) on the bottom plate are fixedly connected to the four corners of the bottom plate, the four pulley blocks (53) on the top plate are fixedly connected to the four corners of the top plate, and the four pulley blocks (53) are fixedly connected to the four corners of the top plate.

10. A crack monitoring device for detecting the health of a bridge as claimed in claim 1, characterized in that:

the bottom rod (1) and the vertical rod (6) are made of steel pipe materials.