Bridge engineering crack safety surveying equipment

Abstract

The invention discloses bridge engineering crack safety survey equipment, and relates to the technical field of bridge survey. The device comprises two bridge deck transport vehicles, telescopic suspension arms are fixedly mounted on the sides, deviating from each other, of the two bridge deck transport vehicles, the telescopic ends of the telescopic suspension arms are vertically downward and fixedly provided with steering suspension arms, and horizontal steering shafts are rotationally mounted at the bottom ends of the steering suspension arms; a motor frame is fixedly installed on one side of each steering suspension arm, and a steering motor is fixedly installed at the bottom end of each motor frame. By arranging the movable detection mechanism, compared with a traditional bridge detection vehicle, the exploration equipment has the advantages that the exploration range is larger, the exploration speed is increased, exploration dead angles are reduced, when the exploration equipment is blocked by structures such as a bridge bottom steel frame, the movable detection mechanism drives the multiple sections of hinged rails to turn to one side of a bridge and keep vertical, and the detection efficiency is improved. Therefore, the bridge bottom structure does not block the multi-section hinged track any more, and the problem that a suspension arm of a traditional bridge detection vehicle can be blocked is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge survey, in particular to a bridge engineering crack safety survey equipment. BACKGROUND

[0002] The survey of bridge structure defects is an important part of bridge safety engineering, and the main detection object is the crack of the bridge structure. The common means of bridge crack detection mainly include photographic detection method, impact elastic wave method and ultrasonic wave detection. Among them, the ultrasonic wave method is to place the transmitting probe and the receiving probe on the same plane, and according to the received waveform variety and acoustic parameters, to measure whether there is a crack nearby and to determine the crack depth through software.

[0003] In the bridge crack detection, the largest workload is the detection of bridge deck cracks and bridge bottom cracks, among which the detection of bridge bottom cracks is the most difficult. The existing bridge bottom detection mainly sends the detection equipment into the bridge bottom through the bridge detection vehicle boom for on-site detection, but the detection range is limited by the length of the boom of the detection vehicle, and can only be carried out on one side of the bridge. The steel frame structure at the bottom of the bridge will hinder the driving of the detection vehicle, and the boom needs to be retracted to continue driving. Therefore, a bridge engineering crack safety survey equipment is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problem that the detection range of the existing bridge bottom detection method is limited by the length of the boom of the detection vehicle, and can only be carried out on one side of the bridge. The steel frame structure at the bottom of the bridge will hinder the driving of the detection vehicle, and the boom needs to be retracted to continue driving. The present application provides a bridge engineering crack safety survey equipment.

[0005] In order to achieve the above purpose, the present application specifically adopts the following technical scheme: A bridge engineering crack safety survey equipment, comprising two bridge deck transport vehicles, each of which is fixedly installed with a telescopic boom on the side away from each other, the telescopic end of the telescopic boom is vertically downward and fixedly installed with a steering boom, the bottom end of the steering boom is rotatably installed with a horizontal steering shaft, one side of the steering boom is fixedly installed with a motor rack, the bottom end of the motor rack is fixedly installed with a steering motor, the output shaft of the steering motor is drivingly connected with one end of the horizontal steering shaft, the horizontal steering shaft is fixedly installed with a hanging rack, and the bottom of the hanging rack is fixedly installed with a track slide. Further, the bottom of one of the track slides is fixedly installed with a laser positioner, and the bottom of the other track slide is fixedly installed with a laser signal receiver matched with the laser positioner.

[0006] Further, two track slides are provided with the same movable detection mechanism for crack detection operation on the bridge bottom, the movable detection mechanism comprises a plurality of articulated track slides slidingly installed on the two track slides, an inner support channel is formed in the plurality of articulated track slides, a plurality of articulated inner support rods are placed in the inner support channel, a limiting fixed plate is fixedly installed at one end of the plurality of articulated inner support rods, a limiting assembly plate is arranged at the other end of the plurality of articulated inner support rods, a plurality of threaded grooves matched with the limiting assembly plate are formed at one end of the plurality of articulated track slides.

[0007] Further, two track slides are provided with the same movable detection mechanism for crack detection operation on the bridge bottom, the movable detection mechanism comprises a plurality of articulated track slides slidingly installed on the two track slides, an inner support channel is formed in the plurality of articulated track slides, a plurality of articulated inner support rods are placed in the inner support channel, a limiting fixed plate is fixedly installed at one end of the plurality of articulated inner support rods, a limiting assembly plate is arranged at the other end of the plurality of articulated inner support rods, a plurality of threaded grooves matched with the limiting assembly plate are formed at one end of the plurality of articulated track slides.

[0008] Further, an ultrasonic flaw detector is fixedly installed on the top of the detection trolley.

[0009] Further, two track slides are provided with the same movable detection mechanism for crack detection operation on the bridge bottom, the movable detection mechanism comprises a plurality of articulated track slides slidingly installed on the two track slides, an inner support channel is formed in the plurality of articulated track slides, a plurality of articulated inner support rods are placed in the inner support channel, a limiting fixed plate is fixedly installed at one end of the plurality of articulated inner support rods, a limiting assembly plate is arranged at the other end of the plurality of articulated inner support rods, a plurality of threaded grooves matched with the limiting assembly plate are formed at one end of the plurality of articulated track slides.

[0010] Further, the top of the bridge transport vehicle is fixedly installed with storage fence plates, the two storage fence plates are symmetrically arranged, two positioning insertion grooves are formed in the interior of the storage fence plates, a cross connecting frame is placed in the interior of one of the storage fence plates, limiting insertion rods matched with the positioning insertion grooves are fixedly installed at the bottom of four ends of the cross connecting frame.

[0011] Further, the top of the bridge transport vehicle is fixedly installed with storage fence plates, the two storage fence plates are symmetrically arranged, two positioning insertion grooves are formed in the interior of the storage fence plates, a cross connecting frame is placed in the interior of one of the storage fence plates, limiting insertion rods matched with the positioning insertion grooves are fixedly installed at the bottom of four ends of the cross connecting frame.

[0012] The beneficial effects of the present application are as follows: 1、The present application is provided with a movable detection mechanism, so that compared with the traditional bridge detection vehicle, the surveying equipment has a larger exploration range, improves the exploration speed and reduces the exploration dead angle. When encountering the obstruction of the bridge bottom steel frame structure, the movable detection mechanism drives the multi-joint articulated track to overturn to one side of the bridge and keep vertical, so that the bridge bottom structure no longer blocks the multi-joint articulated track, solving the problem that the boom of the traditional bridge detection vehicle is blocked. 2、The present application is provided with a multi-joint articulated inner support rod, so that the multi-joint articulated inner support rod is inserted into the multi-joint articulated track in reverse, and the limiting assembly plate is locked by bolts and screw grooves, so that the multi-joint articulated track can only keep straight and cannot bend, thereby preventing the multi-joint articulated track from sagging and bending during the subsequent detection process. 3、The present application is provided with a dust blowing blower, so that during the movement of the detection trolley, the dust blowing blower on both sides blows air to the bridge bottom through the dust blowing pipe, thereby blowing away the dust and adhering debris on the bridge bottom, avoiding affecting the detection accuracy of the ultrasonic flaw detector. At the same time, the two three-way shunt pipes shunt the airflow, blow dust on the upper surface of the multi-joint articulated track, and make the falling dust and debris discharged from the dust exhaust holes on both sides, avoiding affecting the travel accuracy of the detection trolley. 4、The present application is provided with a limiting friction plate, so that after the detection trolley is placed inside the ultrasonic flaw detector, the limiting electric push rods on both sides of the detection trolley are controlled to extend outward, so that the two limiting friction plates contact and press tightly on the inner walls on both sides of the multi-joint articulated track, limiting the detection trolley, thereby avoiding the detection trolley from falling off the multi-joint articulated track when the multi-joint articulated track is connected with the track slide or the multi-joint articulated track avoids the steel frame. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a three-dimensional structure schematic diagram of the present application; Figure 2 is a three-dimensional structure schematic diagram of the bridge transport vehicle and the telescopic boom of the present application; Figure 3 is a first perspective three-dimensional structure schematic diagram of the steering boom and the track slide of the present application; Figure 4 is a second perspective three-dimensional structure schematic diagram of the steering boom and the track slide of the present application; Figure 5 is a three-dimensional structure schematic diagram of the multi-joint articulated track and the detection trolley of the present application; Figure 6 is a three-dimensional structure schematic diagram of the detection trolley of the present application; Figure 5 is a structure schematic diagram of A in the present application; Figure 7 is a three-dimensional structure schematic diagram of the detection trolley of the present application;Figure 8 is the present invention Figure 7 is a structural schematic diagram of B in the present invention Figure 9 is a three-dimensional structural schematic diagram of the multi-section hinged inner support rod of the present invention Figure 10 is a three-dimensional structural schematic diagram of the cross connection frame of the present invention The figure marks: 1, bridge transport vehicle; 2, telescopic hoist arm; 3, steering hoist arm; 4, horizontal steering shaft; 5, hoist frame; 6, motor frame; 7, steering motor; 8, track slide frame; 9, multi-section hinged track; 901, inner support hole; 902, screwing groove; 903, dust removal hole; 10, meshing tooth guard plate; 11, traveling meshing tooth; 12, gear box; 13, traveling motor; 14, traveling gear; 15, detection trolley; 16, ultrasonic flaw detector; 17, multi-section hinged inner support rod; 18, limiting fixed plate; 19, limiting assembly plate; 20, dust blowing blower; 21, dust blowing pipe; 22, three-way shunt pipe; 23, limiting electric push rod; 24, limiting friction plate; 25, laser positioning instrument; 26, storage and transportation fence plate; 2601, positioning slot; 27, cross connection frame; 28, limiting plug-in rod; 29, multi-section hinged synchronous rod. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but only represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative labor are within the scope of protection of the present invention.

[0016] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the embodiments of the present application, it should be noted that the terms "inner", "outer", "upper", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0018] As shown in Figures 1 to 10 , a bridge engineering crack safety survey device comprises two bridge transport vehicles 1, as shown in Figure 1 , Figure 2 , the side away from each other of the two bridge transport vehicles 1 is fixedly installed with a telescopic boom 2, the telescopic end of the telescopic boom 2 is vertically downward and fixedly installed with a steering boom 3, as shown in Figure 3 , the bottom end of the steering boom 3 is rotatably installed with a horizontal steering shaft 4, one side of the steering boom 3 is fixedly installed with a motor rack 6, the bottom end of the motor rack 6 is fixedly installed with a steering motor 7, the output shaft of the steering motor 7 is drivingly connected with one end of the horizontal steering shaft 4, the horizontal steering shaft 4 is fixedly installed with a hanging rack 5, and the bottom of the hanging rack 5 is fixedly installed with a track carriage 8. As shown in Figure 4 , specifically, the bottom of one of the track carriages 8 is fixedly installed with a laser positioner 25, and the bottom of the other track carriage 8 is fixedly installed with a laser signal receiver matched with the laser positioner 25.

[0019] More specifically, by setting the laser positioner 25 and the laser signal receiver, when the two track carriages 8 are flipped downward to be horizontal, the laser positioner 25 at the bottom of one of the track carriages 8 emits laser to the laser signal receiver at the bottom of the other track carriage 8, so as to calibrate the positions of the two track carriages 8, ensure that the two track carriages 8 are in alignment, and avoid that the multiple articulated tracks 9 cannot be connected with the second track carriage 8.

[0020] The same movable detection mechanism is arranged on the two track carriages 8, for crack detection operation transversely arranged at the bottom of the bridge, as shown in Figure 5 , Figure 6 , specifically, the movable detection mechanism comprises multiple articulated tracks 9 slidingly installed on the two track carriages 8, the inside of the multiple articulated tracks 9 is provided with an inner support channel 901, and multiple articulated inner support rods 17 are placed in the inner support channel 901, as shown in Figure 9 , one end of the multiple articulated inner support rods 17 is fixedly installed with a limiting fixed plate 18, the other end of the multiple articulated inner support rods 17 is provided with a limiting assembly plate 19, and one end of the multiple articulated tracks 9 is provided with multiple screw grooves 902 matched with the limiting assembly plate 19.

[0021] In the embodiment, the multi-section hinged inner support rod 17 is composed of a plurality of short rods hingedly connected end to end, each short track of the multi-section hinged track 9 is provided with an inner support channel 901, and the multi-section hinged inner support rod 17 is reversely inserted into the plurality of inner support channels 901.

[0022] More specifically, by arranging the multi-section hinged inner support rod 17, before inserting the multi-section hinged track 9 into the track carriage 8, the multi-section hinged track 9 is first turned into a straight track, so that the inner support channels 901 are connected to each other, then the multi-section hinged inner support rod 17 is also turned into a straight rod, and the hinge direction of the multi-section hinged inner support rod 17 is opposite to that of the multi-section hinged track 9, one end of the multi-section hinged inner support rod 17 is inserted into the inner support channel 901, the limiting fixing plate 18 is tightly attached to one end of the multi-section hinged track 9, and the limiting assembly plate 19 is placed at the other end, and the limiting assembly plate 19 is locked at the other end of the multi-section hinged track 9 by means of the bolt and the screw groove 902, so as to assemble and support the multi-section hinged inner support rod 17 in the multi-section hinged track 9. At this time, since the rotatable directions of the multi-section hinged track 9 and the multi-section hinged inner support rod 17 are opposite, the multi-section hinged track 9 can only remain in a straight track state and cannot be bent, thereby preventing the multi-section hinged track 9 from sagging and bending during the subsequent detection process.

[0023] As shown in Figure 5 , Figure 6 , specifically, two meshing tooth guard plates 10 and a plurality of evenly distributed travel meshing teeth 11 are fixedly installed on both sides of the multi-section hinged track 9, as shown in Figure 3 , gear boxes 12 communicating with the interiors of the track carriages 8 are fixedly installed on both sides of the track carriages 8, travel motors 13 are fixedly installed on the top of the gear boxes 12, output shafts of the travel motors 13 vertically extend into the interiors of the gear boxes 12 and are fixedly sleeved with travel gears 14, and the travel gears 14 extend into the interiors of the track carriages 8 and mesh with the travel meshing teeth 11, as shown in Figure 7 , Figure 8 , a detection trolley 15 is placed on the multi-section hinged track 9, limiting electric push rods 23 horizontally arranged are fixedly installed in the interiors of both sides of the detection trolley 15, and limiting friction plates 24 are fixedly installed on the extending ends of the limiting electric push rods 23.

[0024] In the embodiment, the multi-section hinged track 9 is composed of a plurality of short tracks hingedly connected end to end by hinges, the hinge-located surface is located at the bottom of the multi-section hinged track 9, the detection trolley 15 is located at the top of the multi-section hinged track 9, the meshing tooth guard plate 10 is also composed of a plurality of short guard plates, two short guard plates are assembled on both sides of each short track, the travel meshing teeth 11 located on the same side are located between the two meshing tooth guard plates 10, and the travel motor 13 has a self-locking structure.

[0025] More specifically, by setting the limiting friction plates 24, after placing the detection trolley 15 inside the ultrasonic flaw detector 16, the limiting electric push rods 23 on both sides of the detection trolley 15 are controlled to extend outward, so that the two limiting friction plates 24 respectively contact and press tightly on the inner walls on both sides of the multi-section articulated track 9, limiting the detection trolley 15, thereby avoiding the overturning of the detection trolley 15 when the multi-section articulated track 9 is connected with the track slide 8 or the multi-section articulated track 9 avoids the steel frame, causing the detection trolley 15 to fall off the multi-section articulated track 9.

[0026] As shown in Figure 7 Specifically, the top of the detection trolley 15 is fixedly installed with the ultrasonic flaw detector 16.

[0027] More specifically, when the bridge engineering crack safety surveying equipment is in use, the two bridge surface transport vehicles 1 are placed on the two sides of the bridge surface, the detection trolley 15 is placed inside the multi-section hinged track 9, the multi-section hinged track 9 is inserted into one of the track carriages 8, the multi-section hinged track 9 and the meshing tooth guard plates 10 on the two sides are in butt joint with the track carriage 8, the array of the traveling meshing teeth 11 on the two sides is in contact with the two traveling gears 14, at this time, the two traveling motors 13 are started, the two traveling motors 13 synchronously drive the traveling gears 14 to rotate slowly, at the same time, the multi-section hinged track 9 is moved downward, the traveling meshing teeth 11 are in meshing with the traveling gears 14, the multi-section hinged track 9 is gradually slid downward for a distance under the drive of the traveling gears 14, then the traveling motors 13 are stopped, the telescopic hoists 2 on the two sides are synchronously lowered, the track carriages 8 are below the height of the bridge bottom, then the two steering motors 7 drive the horizontal steering shaft 4 to drive the hanger frame 5 and the track carriage 8 to overturn downward, the two track carriages 8 are kept horizontal and in mutual alignment, the two traveling motors 13 on the side where the multi-section hinged track 9 is located continue to drive the multi-section hinged track 9 to slide horizontally, until the other end of the multi-section hinged track 9 contacts the top of the track carriage 8, the traveling motor 13 on the other side is started, the other end of the multi-section hinged track 9 is also in sliding connection with the other track carriage 8, so that the multi-section hinged track 9 is across the two track carriages 8, at this time, the detection trolley 15 on the multi-section hinged track 9 can drive the ultrasonic flaw detector 16 to move horizontally at the bridge bottom, at the same time, the crack at the bridge bottom is probed, when the detection trolley 15 moves to one end of the multi-section hinged track 9, the bridge surface transport vehicles 1 on the two sides are synchronously moved by a unit distance, the detection trolley 15 moves again to probe, the crack probing operation at the bridge bottom can be completed by repeating the operation, compared with the traditional bridge detection vehicle, the surveying equipment has a larger probing range, greatly improves the probing speed and reduces the probing dead angle, when the multi-section hinged track 9 encounters the blockage of the bridge bottom steel frame and other structures, the two groups of traveling motors 13 are synchronously driven, so that one end of the multi-section hinged track 9 is separated from one of the track carriages 8, then the other track carriage 8 is overturned upward under the drive of the steering motor 7 on the same side, so that the multi-section hinged track 9 is kept vertical on one side of the bridge, so that the bridge bottom structure no longer blocks the multi-section hinged track 9, then the two bridge surface transport vehicles 1 can continue to move and pass through the blocked structure, the track carriage 8 and the multi-section hinged track 9 are reset, and the probing is restarted, so that the problem that the telescopic hoist of the traditional bridge detection vehicle is blocked is solved.

[0028] As shown in Figure 7 More specifically, the two sides of the detection trolley 15 are fixedly installed with dust blowing blowers 20, the air delivery ends of the dust blowing blowers 20 are fixedly installed with vertical upward dust blowing pipes 21, the two dust blowing pipes 21 are fixedly installed with three-way shunt pipes 22 on the sides away from each other, the two ends of the three-way shunt pipes 22 are inclined towards the top of the multi-section hinged track 9, and a plurality of uniformly distributed dust discharge holes 903 are formed in the two sides of the multi-section hinged track 9.

[0029] More specifically, by setting the dust blowing blower 20, so that in the detection of the trolley 15 moving probe process, both sides of the dust blowing blower 20 will be blown through the dust blowing pipe 21 to the bridge bottom, so as to blow away the dust and debris attached to the bridge bottom, to avoid the influence on the detection accuracy of the ultrasonic detector 16, at the same time, two three-way shunt pipe 22 will be shunted, the top surface of the multi-joint track 9 is blown to dust, so that the falling dust and debris are discharged from the two sides of the dust hole 903, to avoid the influence on the travel accuracy of the detection trolley 15.

[0030] As shown in Figure 1 , Figure 2 , the top of the bridge transport vehicle 1 is fixedly installed with a storage and transportation fence 26, and the two storage and transportation fences 26 are symmetrically arranged. The inside of the storage and transportation fence 26 is provided with two positioning slots 2601, as shown in Figure 10 , one of the inside of the storage and transportation fence 26 is placed with a cross connecting frame 27, and the bottom of the four ends of the cross connecting frame 27 is fixedly installed with a limiting plug rod 28 matched with the positioning slot 2601.

[0031] More specifically, by setting the storage and transportation fence 26, after the crack detection operation is completed, the components are reset, the two bridge transport vehicles 1 are butted, and then the cross connecting frame 27 is placed in the inside of the two storage and transportation fences 26, so that the limiting plug rods 28 at the bottom of the cross connecting frame 27 are respectively inserted into the inside of the positioning slots 2601, the storage and transportation fence 26 and even the bridge transport vehicle 1 are limited, so as to lock the two bridge transport vehicles 1, and the multi-joint track 9 and the multi-joint inner support rod 17 and other curved into a disc, and then stored in the inside of the two storage and transportation fences 26, so as to facilitate the storage and transportation of the surveying equipment.

[0032] As shown in Figure 1 , specifically, the top of the two storage and transportation fences 26 is placed with two horizontally arranged multi-joint synchronous rods 29, and the bottom of the two ends of the multi-joint synchronous rod 29 is fixedly installed with a hanging plug rod matched with the positioning slot 2601.

[0033] In this embodiment, the multi-joint synchronous rod 29 is also divided into a plurality of short rods which are hingedly connected at the head and tail.

[0034] More specifically, by setting the multi-joint synchronous rod 29, before the two bridge transport vehicles 1 are synchronously moved, two multi-joint synchronous rods 29 can be placed on the two storage and transportation fences 26, so that the hanging plug rods at the two ends of the two multi-joint synchronous rods 29 are respectively inserted into the two positioning slots 2601 on the two sides, the two bridge transport vehicles 1 are limited, so that the two bridge transport vehicles 1 can only be synchronously moved and will not be misaligned, thereby ensuring the normal movement of the multi-joint track 9 at the bottom.

[0035] In summary: before detection: first make the orientation of the multi-section hinged inner support rod 17 opposite to the multi-section hinged track 9, insert one end of the multi-section hinged inner support rod 17 into the inner support hole 901, and place the limiting assembly plate 19 at the other end, lock the limiting assembly plate 19 at the other end of the multi-section hinged track 9 by using bolts and screw grooves 902, so that the multi-section hinged track 9 always remains in a straight track state and cannot be bent, place two bridge transport vehicles 1 on both sides of the bridge deck, place the detection trolley 15 inside the multi-section hinged track 9 and lock it, then insert the multi-section hinged track 9 into one of the track carriages 8, so that the multi-section hinged track 9 and the meshing tooth guard plates 10 on both sides are in butt joint with the track carriage 8, and the array of the travel meshing teeth 11 on both sides is in contact with the two travel gears 14, at this time, start the two travel motors 13 to make the two travel motors 13 synchronously drive the travel gears 14 to rotate slowly, at the same time, move the multi-section hinged track 9 downward, so that the travel meshing teeth 11 mesh with the travel gears 14, the multi-section hinged track 9 gradually slides downward a distance under the drive of the travel gears 14, then the travel motor 13 stops, the telescopic lifting arms 2 on both sides synchronously descend, so that the track carriage 8 is below the height of the bridge bottom, then the two steering motors 7 drive the horizontal steering shaft 4 to turn the hanger frame 5 and the track carriage 8 downward, so that the two track carriages 8 remain horizontal and are in alignment with each other, the two travel motors 13 on one side of the multi-section hinged track 9 continue to drive the multi-section hinged track 9 to slide horizontally, until the other end of the multi-section hinged track 9 contacts the top of the track carriage 8, then the group of travel motors 13 on the other side starts to operate, so that the other end of the multi-section hinged track 9 also slides with the other track carriage 8, thereby making the multi-section hinged track 9 span on the two track carriages 8; During detection: the detection trolley 15 on the multi-section hinged track 9 can drive the ultrasonic flaw detector 16 to move horizontally at the bridge bottom, and at the same time, the detection trolley 15 can detect the cracks at the bridge bottom, when the detection trolley 15 moves to one end of the multi-section hinged track 9, the two bridge transport vehicles 1 on both sides synchronously move a unit distance, the detection trolley 15 moves again to detect, and the operation is repeated to complete the crack detection operation at the bridge bottom, when the multi-section hinged track 9 encounters the blockage of the bridge bottom steel frame structure, the two groups of travel motors 13 are synchronously driven, so that one end of the multi-section hinged track 9 is separated from one of the track carriages 8, then the other track carriage 8 is turned upward under the drive of the steering motor 7 on the same side, so that the multi-section hinged track 9 is on one side of the bridge and remains vertical, so that the bridge bottom structure no longer blocks the multi-section hinged track 9, then the two bridge transport vehicles 1 can continue to move and pass through the blocked structure, the track carriage 8 and the multi-section hinged track 9 are reset, and the detection is restarted; After detection: after the end of the crack detection operation, the components are reset, the two bridge transport vehicles 1 are docked, and then the cross connecting frame 27 is placed inside the two storage fence plates 26, so that the various limiting rods 28 at the bottom of the cross connecting frame 27 are respectively inserted into the inside of the positioning slot 2601, and the storage fence plate 26 and even the bridge transport vehicle 1 are limited, so as to lock the two bridge transport vehicles 1, and the multiple articulated tracks 9 and the multiple articulated inner support rods 17 and the like can be bent into a disc and then stored in the inside of the two storage fence plates 26, facilitating the storage and transportation of the surveying equipment.

[0036] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A bridge engineering crack safety surveying apparatus, characterized by, The utility model relates to a bridge crack detection vehicle, including two bridge transport vehicles (1), two the bridge transport vehicles (1) are fixedly installed with retractable crane arm (2) to the side of mutual departure, the retractable end of retractable crane arm (2) is vertically downward and is fixedly installed with steering boom (3), the bottom of steering boom (3) is rotatably installed with horizontal steering shaft (4), one side of steering boom (3) is fixedly installed with motor frame (6), the bottom of motor frame (6) is fixedly installed with steering motor (7), the output shaft of steering motor (7) is drivenly connected with one end of horizontal steering shaft (4), the horizontal steering shaft (4) is fixedly installed with the hanger bracket (5) on, the bottom of hanger bracket (5) is fixedly installed with track carriage (8), and one same movable detection mechanism is arranged on two track carriages (8) and is used for crack detection operation of being transversely arranged on the bridge bottom, The movable detection mechanism includes a plurality of articulated tracks (9) slidably mounted on the two track carriages (8), two engaging tooth guards (10) and a plurality of evenly distributed travel engaging teeth (11) are fixedly installed on the two sides of the plurality of articulated tracks (9), gearboxes (12) are fixedly installed on the two sides of the track carriages (8) and are in communication with the interiors of the track carriages (8), travel motors (13) are fixedly installed on the top of the gearboxes (12), the output shafts of the travel motors (13) extend vertically downward into the interiors of the gearboxes (12) and are fixedly sleeved with travel gears (14), the travel gears (14) extend into the interiors of the track carriages (8) and are engaged with the travel engaging teeth (11), detection trolleys (15) are placed on the plurality of articulated tracks (9), and ultrasonic flaw detectors (16) are fixedly installed on the top of the detection trolleys (15).

2. The bridge engineering crack safety surveying device according to claim 1, wherein The interior of the plurality of articulated tracks (9) is provided with an internal support hole (901), a plurality of articulated internal support rods (17) are placed in the internal support hole (901), a limiting fixed plate (18) is fixedly installed at one end of the plurality of articulated internal support rods (17), a limiting assembly plate (19) is arranged at the other end of the plurality of articulated internal support rods (17), and a plurality of threaded grooves (902) matched with the limiting assembly plate (19) are formed in one end of the plurality of articulated tracks (9).

3. The bridge engineering crack safety surveying device according to claim 1, wherein Dust blowing fans (20) are fixedly installed on the two sides of the detection trolleys (15), and vertical upward dust blowing pipes (21) are fixedly installed on the air outlet ends of the dust blowing fans (20).

4. The bridge engineering crack safety surveying device according to claim 3, wherein Three-way shunt pipes (22) are fixedly installed on the sides, away from each other, of the two dust blowing pipes (21), the two ends of the three-way shunt pipes (22) are inclined towards the top of the plurality of articulated tracks (9), and a plurality of evenly distributed dust discharge holes (903) are formed in the two sides of the plurality of articulated tracks (9).

5. The bridge engineering crack safety surveying device according to claim 1, wherein Limiting electric push rods (23) horizontally arranged are fixedly installed in the interiors of the two sides of the detection trolleys (15), the telescopic ends of the limiting electric push rods (23) extend to the outside of the detection trolleys (15) and are fixedly installed with limiting friction plates (24).

6. The bridge engineering crack safety surveying device according to claim 1, wherein The bottom of one of the track slides (8) is fixedly provided with a laser positioner (25), and the bottom of the other track slide (8) is fixedly provided with a laser signal receiver matched with the laser positioner (25).

7. The bridge engineering crack safety surveying device according to claim 1, wherein The top of the bridge transport vehicle (1) is fixedly provided with storage fences (26), and the two storage fences (26) are symmetrically arranged. The inside of the storage fence (26) is provided with two positioning slots (2601), and the inside of one of the storage fences (26) is provided with a cross connecting frame (27). The bottom of the four ends of the cross connecting frame (27) is fixedly provided with a limiting insertion rod (28) matched with the positioning slot (2601).

8. The bridge engineering crack safety surveying device according to claim 7, wherein The top of the two storage fences (26) is provided with two horizontally arranged multi-section articulated synchronous rods (29), and the bottom of the two ends of the multi-section articulated synchronous rod (29) is fixedly provided with a hanging insertion rod matched with the positioning slot (2601).

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