Highway bridge detection and measurement device

Abstract

The invention relates to a highway bridge detection and measurement device, and belongs to the technical field of highway bridge detection equipment. Comprising a flat car, a support horizontally arranged on the flat car, a lifting frame connected to the support in a sliding mode, a data collector arranged on the lifting frame, a storage box fixedly connected to the bottom of the lifting frame and two chain assemblies arranged in the storage box. When the lifting frame drives the storage box to descend to the position below the bridge body, the driving motor is started to drive the chain wheels meshed with the two sets of meshing chains to rotate, when the meshing chains pass through the two chain wheels, the meshing chains are meshed with each other, the two sets of meshing chains form a rigid rod, and the moving trolley can drive the data collector to move along the rod. And the movable distance is large. According to the bridge detection trolley, the problems of small working range and data acquisition of the bridge detection trolley in the prior art are solved.

Description

Technical Field

[0001] The invention relates to a highway bridge detection and measurement device, belonging to the technical field of highway bridge detection equipment. Background Art

[0002] At present, the inspection equipment of bridges is all vehicle-mounted, and the inspection vehicle runs on the bridge deck. There are generally two inspection methods. One is to use a bracket to extend under the bridge, and then the inspectors go under the bridge for manual inspection; the other is to use a crank arm hanging railing to send the inspectors under the bridge for inspection. Such bridge inspection equipment has the following disadvantages: first, it occupies the train running line during work, and the railway line must be closed during inspection; second, the operation efficiency is low; third, multiple groups of personnel are required to cooperate during inspection, and the labor cost is high; fourth, it is necessary to manually go down the bridge for inspection, and there are great safety hazards in human-machine cooperation; fifth, manual inspection is prone to missed inspections. When the line is sealed for inspection, due to the operation of the bridge inspection vehicle on the round trip, the determination of the working position, the position of personnel and other factors, the effective inspection time is very short, and the running line cannot be closed for too long, so the existing equipment is far from meeting the needs of bridge inspection work. Therefore, it has become an urgent problem to invent a bridge inspection vehicle that can realize remote operation and monitoring without human operation on site.

[0003] In view of the above technical problems, after searching, a Chinese patent with announcement number CN102199913B discloses a bridge inspection vehicle, the technical key points of which are: including an industrial computer, a frame, a lifting mechanism, a running mechanism, a horizontal wheel, a data acquisition device, a pitch mechanism, a remote controller, a local area network control station, and a monitoring center. Horizontal wheel guides are installed at the front and rear ends and the lower end of the frame, the power machine drives the running mechanism to realize forward and backward movement with the bridge railing as the running track, the power machine drives the lifting mechanism to realize ascending and descending, and the pitch mechanism installed at the lower end of the lifting mechanism is driven by the power machine to swing up and down.

[0004] The above solution solves the problem of closing the line for inspection operations, but the overall movable range of the frame is limited, and the data acquisition device can only collect data on the side of the bridge. It is difficult to observe and collect data on the bottom of the bridge. Therefore, the scope of application is relatively low.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a highway bridge detection and measurement device, which solves the problem of small working range and data collection of bridge detection vehicles in the prior art.

[0007] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: The highway bridge detection and measurement device comprises a flatbed truck, a bracket horizontally arranged on the flatbed truck, a lifting frame slidably connected to the bracket, a data collector arranged on the lifting frame, and also comprises a storage box fixedly connected to the bottom of the lifting frame, and two groups of chain assemblies respectively arranged in the storage box, wherein the storage box is provided with a projection opening on the side wall close to the bridge body, and the chain assembly comprises a winding shaft rotatably supported in the storage box in a vertical direction, a meshing chain wound on the winding shaft, and a sprocket rotatably connected to a side of the corresponding projection opening in the storage box, The meshing chain is meshed with the sprocket, and the meshing chain includes a plurality of chain plate units hinged to each other at the head and tail ends, and the chain plate unit includes a chain plate and a first meshing tooth fixedly connected to one side of the chain plate, and the edges of two adjacent chain plates that are close to each other and away from the first meshing tooth are hinged, and the hinge axis is vertically arranged, the first meshing teeth in the two groups of the meshing chains are meshed with each other, and the ends of the two groups of the meshing chains extending out of the storage box are fixedly connected to a fixed block, a mobile trolley is provided on the fixed block, and the data collector is fixedly installed on the mobile trolley.

[0008] The present invention is further configured such that: the first meshing teeth are parallelograms inclined toward one end of the chain plate, and the first meshing teeth in the two groups of meshing chains are inclined in opposite directions.

[0009] The present invention is further configured as follows: the chain plate unit also includes a second meshing tooth fixedly connected to the chain plate, the first meshing tooth and the second meshing tooth are arranged in the thickness direction of the chain plate, the second meshing tooth is a parallelogram inclined toward one end of the chain plate, and the first meshing tooth and the second meshing tooth are inclined in opposite directions, the second meshing teeth in the two groups of the meshing chains are inclined in opposite directions, and the second meshing teeth in the two groups of the meshing chains are meshed with each other.

[0010] The present invention is further configured as follows: the shaft of the sprocket passes through and extends to the bottom of the storage box, the bottom end of the shaft of the sprocket is coaxially fixedly connected with a worm wheel, the bottom of the storage box is rotatably supported by an axle seat to support a worm that is meshed with the worm wheels on both sides, and one end of the worm is connected to a driving motor installed on the bottom surface of the storage box.

[0011] The present invention is further configured as follows: the bracket includes a pair of horizontally arranged cross bars, a flip member respectively arranged between the cross bars and the flatbed car, a pair of C-shaped channel steels respectively arranged at the ends of the two cross bars and symmetrically arranged, and a driving member for driving the lifting frame; the lifting frame includes a pair of sliding rods parallel to each other, a plurality of fixed rods fixedly connected between the sliding rods on both sides and uniformly distributed along the length direction of the sliding rods, the sliding rods on both sides are respectively slidably connected to the C-shaped channel steels on both sides, an X-shaped diagonal brace is fixedly connected between the two cross bars, and the ends of the cross bars are provided with mounting grooves connected to the inside of the C-shaped channel steel; The driving member includes a rotating shaft rotatably supported between the cross bars on both sides, a first winding wheel fixedly connected to the rotating shaft, a driving gear fixedly connected to both ends of the rotating shaft, a second winding wheel rotatably supported on the top surface of the flatbed vehicle, a winding motor connected to one end of the second winding wheel, and a winding rope having one end connected to the first winding wheel and the other end connected to the second winding wheel. The side walls of the sliding rod close to the driving gear are provided with a plurality of teeth evenly distributed along the length direction thereof, and the driving gear is meshed with the teeth.

[0012] The present invention is further configured as follows: the outer side wall of the C-shaped channel steel away from its opening is fixedly connected with a hinged rod, the other end of the hinged rod is rotatably connected to the side wall of the cross bar and is coaxial with the driving gear, the mounting groove is connected to the top surface and end surface of the cross bar, and a fillet coaxial with the driving gear is provided between the top surface and the end surface of the cross bar where the mounting groove is provided.

[0013] The present invention is further configured as follows: the flip member includes a first flip rod and a second flip rod whose two ends are respectively hinged to the cross bar and the top surface of the flatbed truck, and a driving cylinder whose one end is hinged to one end of the cross bar close to the C-shaped channel steel and the other end is hinged to the side of the top surface of the flatbed truck away from the lifting frame, and the first flip rod and the second flip rod are of equal length and are arranged in parallel.

[0014] The present invention is further configured as follows: the first flip rod is located on a side of the second flip rod close to the lifting frame, and a plurality of locking members are provided on the first flip rod, the locking members include a sliding sleeve slidably connected to the first flip rod, a clamp fixedly connected to the sliding sleeve, and a positioning bolt threadedly connected to the sliding sleeve; a plurality of positioning holes are opened on the first flip rod along its length direction, and the ends of the positioning bolts are inserted into the positioning holes.

[0015] The present invention is further configured as follows: a plurality of evenly distributed tooth grooves are provided on a side of the chain plate unit away from the first meshing tooth and the second meshing tooth, the sprocket is a regular polygonal structure and the side length is the same as the length of the chain plate, and each side of the sprocket is fixedly connected with a plurality of driving teeth corresponding one-to-one to the tooth grooves.

[0016] The present invention is further configured as follows: the mobile trolley includes a mounting plate, driving wheels connected to the four corners of the mounting plate through a first driving shaft, the driving wheels are gear-shaped and meshed in the tooth grooves on the chain plate, the first driving shaft is perpendicular to the mounting plate and passes through the mounting plate, the top ends of the first driving shafts are fixedly connected to the first bevel gears, a second driving shaft horizontally placed above the mounting plate is provided between two adjacent first driving shafts, both ends of the second driving shaft are fixedly connected to second bevel gears respectively meshed with the two first bevel gears, a moving motor is provided on the second driving shaft, and a protective cover is provided on the moving motors.

[0017] The beneficial effects of the present invention are: 1. By setting a storage box and two groups of meshing chains, when the lifting frame drives the storage box to drop to the bottom of the bridge body, the cylinder starts the driving motor, so that the driving motor drives the sprockets respectively meshed with the two groups of meshing chains to rotate, and when the meshing chains pass between the two sprockets, they mesh with each other. Since the chain plate unit is provided with a first meshing tooth and a second meshing tooth, the meshing chains limit the flipping of the meshing chains on the opposite side in the state of mutual meshing, so that the two groups of meshing chains form a rigid rod shape, so that the mobile trolley can drive the data collector to move along it, and the movable distance is large and the working range is wide; 2. When deploying the flatbed car, the bracket can be locked on the railing on the side of the bridge body through the clamp set on the first flip rod, so as to increase the stability of the flatbed car, and the cross bar can be moved upward around the first flip rod by driving the cylinder. With the cooperation of the first flip rod and the second flip rod, the cross bar is always kept in a horizontal state, so that the lifting frame is extended over the railing on the side of the bridge body, so that the lifting frame is located outside the bridge body. At this time, by starting the winding motor, the winding motor rotates the rotating shaft through the cooperation of the first winding wheel, the second winding wheel and the winding rope, so as to drive the lifting frame to slide in the C-shaped channel steel through the driving gear, thereby driving the storage box to be lifted and lowered; 3. By rotating the C-shaped channel steel to the end of the cross bar through the hinge shaft, in the initial state, the lifting frame is horizontally stacked on the top of the cross bar. Driven by the driving gear, the lifting frame moves horizontally toward the outside of the bridge body. When the driving gear moves to the tooth groove at the end of the sliding rod, the sliding rod is restricted from moving. When the driving gear continues to rotate, it will drive the lifting frame to flip and convert the lifting frame to a vertical state. When the lifting frame is folded, the driving gear rotates in the opposite direction to make the lifting frame rise in the vertical direction. When the driving gear moves to the tooth groove at the end of the sliding rod, the lifting frame rises to the top and, under the action of the driving gear, flips to a horizontal state and stacks on the top of the cross bar, so that it is convenient for the staff to transport it. 4. By setting the tooth groove on the outer side of the chain plate, cooperating with the driving wheel and the mobile motor on the mobile trolley, the movement of the mobile trolley on the meshing chain is more stable and less likely to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 yes Figure 1 A partial enlarged view of part A.

[0020] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 4 yes Figure 3 A partial enlarged view of part B.

[0022] Figure 5 It is a cross-sectional view of the storage box part in the present invention.

[0023] Figure 6 yes Figure 5 A partial enlarged view of part C.

[0024] Figure 7 It is a structural schematic diagram of the storage box part in the present invention.

[0025] Figure 8 It is a structural schematic diagram of the chain plate unit part in the present invention.

[0026] Fig. 9 It is a schematic structural diagram of the cooperation between the moving trolley and the meshing chain in the present invention.

[0027] In the figure: 1, flatbed car; 2, bracket; 3, lifting frame; 4, data collector; 5, storage box; 6, chain assembly; 7, universal wheel; 8, cross bar; 9, flip part; 10, C-shaped channel steel; 11, driving part; 12, X-shaped diagonal brace; 13, first flip rod; 14, second flip rod; 15, driving cylinder; 16, locking part; 17, sliding sleeve; 18, clamp; 19, positioning bolt; 20, positioning hole; 21, sliding rod; 22, fixing rod; 23, mounting groove; 24, rotating shaft; 25, first winding wheel; 26, driving gear; 27, second winding wheel; 28. Winding motor; 29. ​​Winding rope; 30. Tooth groove; 31. Articulated rod; 32. Extension port; 33. Winding shaft; 34. Engaging chain; 35. Sprocket; 36. Chain plate unit; 37. Chain plate; 38. First meshing tooth; 39. Second meshing tooth; 40. Fixed block; 41. Worm wheel; 42. Worm; 43. Driving motor; 44. Driving tooth; 45. Moving trolley; 46. Mounting plate; 47. First driving shaft; 48. Driving wheel; 49. First bevel gear; 50. Second driving shaft; 51. Second bevel gear; 52. Moving motor; 53. Protective cover. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0029] like Figure 1-Figure 9 As shown, the highway bridge inspection and measurement device includes a flatbed truck 1, a bracket 2 horizontally arranged on the flatbed truck 1, a lifting frame 3 slidably connected to the bracket 2, a data collector 4 arranged on the lifting frame 3, a storage box 5 fixedly connected to the bottom of the lifting frame 3, and two groups of chain assemblies 6 respectively arranged in the storage box 5, wherein a universal wheel 7 is provided at the bottom of the flatbed truck 1, the bracket 2 is used to drive the lifting frame 3 to flip toward the outside of the bridge body, and the data collector 4 is arranged on the two groups of chain assemblies 6 and can be moved horizontally through the two groups of chain assemblies 6.

[0030] The bracket 2 includes a pair of horizontally arranged cross bars 8, a flipping member 9 respectively arranged between the cross bars 8 and the flatbed truck 1, a pair of C-shaped channel steels 10 respectively arranged at the ends of the two cross bars 8 and symmetrically arranged, and a driving member 11 for driving the lifting frame 3, wherein an X-shaped diagonal brace 12 is fixedly connected between the two cross bars 8, the flipping member 9 includes a first flipping rod 13 and a second flipping rod 14 whose two ends are respectively hinged to the cross bars 8 and the top surface of the flatbed truck 1, a driving cylinder 15 whose one end is hinged to one end of the cross bar 8 close to the C-shaped channel steel 10 and the other end is hinged to the side of the top surface of the flatbed truck 1 away from the lifting frame 3, and the first flipping rod 13 and the second flipping rod 14 are of equal length and are arranged in parallel.

[0031] In order to make the flatbed vehicle 1 more stable in the working state, the first flip rod 13 is located on the side of the second flip rod 14 close to the lifting frame 3. The first flip rod 13 is provided with a plurality of locking members 16, which include a sliding sleeve 17 slidably connected to the first flip rod 13, a clamp 18 fixedly connected to the sliding sleeve 17, and a positioning bolt 19 threadedly connected to the sliding sleeve 17. The first flip rod 13 is provided with a plurality of positioning holes 20 along its length direction, and the ends of the positioning bolts 19 are inserted into the positioning holes 20. By means of the clamp 18 provided on the first flip rod 13, the bracket 2 can be locked as a whole on the railing on the side of the bridge body, thereby increasing the stability of the flatbed vehicle 1.

[0032] The lifting frame 3 includes a pair of sliding rods 21 parallel to each other, and a plurality of fixed rods 22 fixedly connected between the sliding rods 21 on both sides and evenly distributed along the length direction of the sliding rods 21. The sliding rods 21 on both sides are respectively slidably connected to the C-shaped channel steels 10 on both sides, and the ends of the cross bars 8 are provided with installation grooves 23 connected to the inside of the C-shaped channel steels 10.

[0033] The driving member 11 includes a rotating shaft 24 rotatably supported between the two side cross bars 8, a first winding wheel 25 fixedly connected to the rotating shaft 24, a driving gear 26 fixedly connected to the two ends of the rotating shaft 24, a second winding wheel 27 rotatably supported on the top surface of the flatbed vehicle 1, a winding motor 28 connected to one end of the second winding wheel 27, and a winding rope 29 connected to the first winding wheel 25 at one end and the second winding wheel 27 at the other end. The side walls of the sliding rod 21 close to the driving gear 26 are provided with a plurality of tooth grooves 30 evenly distributed along the length direction thereof, and the driving gear 26 is meshed with the tooth grooves 30.

[0034] To facilitate the storage and transportation of the lifting frame 3, a hinge rod 31 is fixedly connected to the outer side wall of the C-shaped channel steel 10 away from its opening. The other end of the hinge rod 31 is rotatably connected to the side wall of the cross bar 8 and is coaxial with the driving gear 26. The mounting groove 23 is connected to the top surface and end surface of the cross bar 8, and a fillet coaxial with the driving gear 26 is set between the top surface and the end surface of the cross bar 8 where the mounting groove 23 is opened.

[0035] By rotating the C-shaped channel steel 10 to the end of the cross bar 8 through the hinge shaft, in the initial state, the lifting frame 3 is horizontally stacked above the cross bar 8, and driven by the driving gear 26, the lifting frame 3 moves horizontally toward the outside of the bridge body. When the driving gear 26 moves to the tooth groove 30 at the end of the sliding rod 21, the sliding rod 21 is restricted from moving. When the driving gear 26 continues to rotate, it will drive the lifting frame 3 to flip over and convert the lifting frame 3 to a vertical state. When the lifting frame 3 is folded, the driving gear 26 rotates in the opposite direction to make the lifting frame 3 rise in the vertical direction. When the driving gear 26 moves to the tooth groove 30 at the end of the sliding rod 21, the lifting frame 3 rises to the top and, under the action of the driving gear 26, flips to a horizontal state and is stacked on the top of the cross bar 8, so that it is convenient for the staff to transport it.

[0036] A projection opening 32 is provided on the side wall of the storage box 5 near the bridge body, and the chain assembly 6 includes a winding shaft 33 rotatably supported in the storage box 5 along the vertical direction, a meshing chain 34 wound on the winding shaft 33, and a sprocket 35 rotatably connected to the side of the corresponding projection opening 32 in the storage box 5, the meshing chain 34 is meshed with the sprocket 35, and the meshing chain 34 includes a plurality of chain plate units 36 hinged to each other at the head and tail, and the chain plate unit 36 ​​includes a chain plate 37, a first meshing tooth 38 fixedly connected to one side of the chain plate 37, and a second meshing tooth 39 fixedly connected to the chain plate 37.

[0037] Among them, the edges of two adjacent chain plates 37 that are close to each other and away from the first meshing teeth 38 are hinged, and the hinge axis is vertically arranged, and the ends of the two groups of meshing chains 34 extending out of the storage box 5 are fixedly connected to a fixed block 40, and the first meshing teeth 38 and the second meshing teeth 39 are arranged in the thickness direction of the chain plate 37, the first meshing teeth 38 are parallelograms inclined toward one end of the chain plate 37, and the second meshing teeth 39 are parallelograms inclined toward one end of the chain plate 37. The first meshing teeth 38 and the second meshing teeth 39 are inclined in opposite directions, and the first meshing teeth 38 in the two groups of meshing chains 34 are inclined in opposite directions, and the second meshing teeth 39 in the two groups of meshing chains 34 are inclined in opposite directions, and the first meshing teeth 38 in the two groups of meshing chains 34 are meshed with each other, and the second meshing teeth 39 in the two groups of meshing chains 34 are meshed with each other.

[0038] In order to facilitate driving the two sets of meshing chains 34 to be wound or stretched, the shaft of the sprocket 35 passes through and extends to the bottom of the storage box 5, and the bottom end of the shaft of the sprocket 35 is coaxially fixedly connected with a worm wheel 41. The bottom of the storage box 5 is rotatably supported by a shaft seat with a worm 42 that meshes with the worm wheels 41 on both sides, and one end of the worm 42 is connected to a driving motor 43 installed on the bottom surface of the storage box 5.

[0039] A plurality of evenly distributed tooth grooves 30 are formed on one side of the chain plate unit 36 ​​away from the first meshing teeth 38 and the second meshing teeth 39. The sprocket 35 is a regular polygonal structure with a side length the same as that of the chain plate 37. Each side of the sprocket 35 is fixedly connected with a plurality of driving teeth 44 corresponding to the tooth grooves 30 one by one.

[0040] A mobile trolley 45 is provided on the fixed block 40, and the data collector 4 is fixedly installed on the mobile trolley 45. The mobile trolley 45 includes a mounting plate 46, and driving wheels 48 connected to the four corners of the mounting plate 46 through first driving shafts 47, respectively. The driving wheels 48 are gear-shaped and meshed in the tooth grooves 30 on the chain plate 37. The first driving shaft 47 is perpendicular to the mounting plate 46 and penetrates the mounting plate 46. The top of the first driving shaft 47 is fixedly connected to a first bevel gear 49. A second driving shaft 50 disposed horizontally above the mounting plate 46 is provided between two adjacent first driving shafts 47. Both ends of the second driving shaft 50 are fixedly connected to second bevel gears 51 respectively meshed with the two first bevel gears 49. A mobile motor 52 is provided on the second driving shaft 50, and a protective cover 53 is provided on the mobile motor 52. By providing the tooth grooves 30 on the outer side of the chain plate 37, in combination with the driving wheels 48 and the mobile motor 52 on the mobile trolley 45, the movement of the mobile trolley 45 on the meshing chain 34 is more stable and is not prone to falling.

[0041] The implementation principle of the present invention is: When the flatbed trolley 1 is deployed, the bracket 2 can be locked as a whole on the railing on the side of the bridge body by the clamp 18 arranged on the first flip rod 13, so as to increase the stability of the flatbed trolley 1, and the cross bar 8 can be moved upward around the first flip rod 13 by driving the cylinder 15. With the cooperation of the first flip rod 13 and the second flip rod 14, the cross bar 8 is always kept in a horizontal state, so that the lifting frame 3 is extended over the railing on the side of the bridge body, so that the lifting frame 3 is located outside the bridge body. At this time, by starting the winding motor 28, the winding motor 28 rotates the rotating shaft 24 through the cooperation of the first winding wheel 25, the second winding wheel 27 and the winding rope 29, so as to drive the gear 26. The lifting frame 3 is driven to slide in the C-shaped channel steel 10, thereby driving the storage box 5 to be lifted and lowered. When the lifting frame 3 drives the storage box 5 to drop to the bottom of the bridge body, the cylinder starts the driving motor 43, so that the driving motor 43 drives the sprockets 35 respectively engaged with the two groups of meshing chains 34 to rotate. When the meshing chains 34 pass between the two sprockets 35, they mesh with each other. Since the chain plate unit 36 ​​is provided with a first meshing tooth 38 and a second meshing tooth 39, the meshing chain 34 limits the flipping of the meshing chain 34 on the opposite side in the state of mutual meshing, so that the two groups of meshing chains 34 form a rigid rod shape, so that the mobile cart 45 can drive the data collector 4 to move along it, and the movable distance is large and the working range is wide.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A highway bridge inspection and measurement device, comprising a flatbed vehicle (1), a bracket (2) horizontally arranged on the flatbed vehicle (1), a lifting frame (3) slidably connected to the bracket (2), and a data collector (4) arranged on the lifting frame (3), characterized in that: It also includes a storage box (5) fixedly connected to the bottom of the lifting frame (3), and two groups of chain assemblies (6) respectively arranged in the storage box (5), the storage box (5) is provided with a projection (32) on the side wall close to the bridge body, the chain assembly (6) includes a winding shaft (33) rotatably supported in the storage box (5) along the vertical direction, a meshing chain (34) wound around the winding shaft (33), and a sprocket (35) rotatably connected to the side of the projection (32) in the storage box (5), the meshing chain (34) is meshed with the sprocket (35), and the meshing chain (34) includes a plurality of chain plate units (36) hinged to each other at the head and tail. The chain plate unit (36) comprises a chain plate (37), a first meshing tooth (38) fixedly connected to one side of the chain plate (37), the edges of two adjacent chain plates (37) close to each other and away from the first meshing tooth (38) are hinged, and the hinge axis is vertically arranged, the first meshing teeth (38) in the two groups of meshing chains (34) mesh with each other when passing between the two sprocket wheels (35), and the ends of the two groups of meshing chains (34) extending out of the storage box (5) are fixedly connected to a fixed block (40), the fixed block (40) is provided with a moving trolley (45), and the data collector (4) is fixedly installed on the moving trolley (45).

2. The highway bridge detection and measurement device according to claim 1 is characterized in that: The first meshing teeth (38) are parallelograms inclined toward one end of the chain plate (37), and the first meshing teeth (38) in the two groups of meshing chains (34) are inclined in opposite directions.

3. The highway bridge detection and measurement device according to claim 2 is characterized in that: The chain plate unit (36) further comprises a second meshing tooth (39) fixedly connected to the chain plate (37); the first meshing tooth (38) and the second meshing tooth (39) are arranged in the thickness direction of the chain plate (37); the second meshing tooth (39) is a parallelogram inclined toward one end of the chain plate (37); the first meshing tooth (38) and the second meshing tooth (39) are inclined in opposite directions; the second meshing teeth (39) in the two groups of meshing chains (34) are inclined in opposite directions; and the second meshing teeth (39) in the two groups of meshing chains (34) mesh with each other.

4. The highway bridge detection and measurement device according to claim 1 is characterized in that: The shaft of the sprocket (35) passes through and extends to the bottom of the storage box (5); the bottom end of the shaft of the sprocket (35) is coaxially fixedly connected to a worm wheel (41); the bottom of the storage box (5) is rotatably supported by a shaft seat to support a worm (42) meshing with the worm wheels (41) on both sides; one end of the worm (42) is connected to a driving motor (43) installed on the bottom surface of the storage box (5).

5. The highway bridge detection and measurement device according to claim 1 is characterized in that: The support (2) comprises a pair of horizontally arranged cross bars (8), a flip member (9) respectively arranged between the cross bars (8) and the flatbed car (1), a pair of C-shaped channel steels (10) respectively arranged at the ends of the two cross bars (8) and symmetrically arranged, and a driving member (11) for driving the lifting frame (3); the lifting frame (3) comprises a pair of mutually parallel sliding rods (21), a plurality of fixed rods (22) fixedly connected between the sliding rods (21) on both sides and uniformly distributed along the length direction of the sliding rods (21), the sliding rods (21) on both sides are respectively slidably connected to the C-shaped channel steels (10) on both sides, an X-shaped diagonal brace (12) is fixedly connected between the two cross bars (8), and the ends of the cross bars (8) are each provided with a mounting groove (23) connected to the inside of the C-shaped channel steel (10); The driving member (11) comprises a rotating shaft (24) rotatably supported between the cross bars (8) on both sides, a first winding wheel (25) fixedly connected to the rotating shaft (24), a driving gear (26) respectively fixedly connected to the two ends of the rotating shaft (24), a second winding wheel (27) rotatably supported on the top surface of the flatbed vehicle (1), a winding motor (28) connected to one end of the second winding wheel (27), and a winding rope (29) connected to the first winding wheel (25) at one end and to the second winding wheel (27) at the other end. The side wall of the sliding rod (21) close to the driving gear (26) is provided with a plurality of tooth grooves (30) evenly distributed along its length direction, and the driving gear (26) is meshed with the tooth grooves (30).

6. The highway bridge detection and measurement device according to claim 5 is characterized in that: The C-shaped channel steel (10) is fixedly connected to an outer side wall away from its opening, and the other end of the hinged rod (31) is rotatably connected to the side wall of the cross bar (8) and is coaxial with the driving gear (26). The mounting groove (23) is connected to the top surface and end surface of the cross bar (8), and a fillet coaxial with the driving gear (26) is provided between the top surface and the end surface of the cross bar (8) where the mounting groove (23) is provided.

7. The highway bridge detection and measurement device according to claim 5 is characterized in that: The flip member (9) comprises a first flip rod (13) and a second flip rod (14) whose two ends are respectively hinged to the cross rod (8) and the top surface of the flatbed vehicle (1), and a driving cylinder (15) whose one end is hinged to one end of the cross rod (8) close to the C-shaped channel steel (10) and the other end is hinged to the top surface of the flatbed vehicle (1) away from the lifting frame (3). The first flip rod (13) and the second flip rod (14) are of equal length and are arranged in parallel.

8. The highway bridge detection and measurement device according to claim 6 is characterized in that: The first flip rod (13) is located on a side of the second flip rod (14) close to the lifting frame (3). The first flip rod (13) is provided with a plurality of locking members (16). The locking members (16) include a sliding sleeve (17) slidably connected to the first flip rod (13), a clamp (18) fixedly connected to the sliding sleeve (17), and a positioning bolt (19) threadedly connected to the sliding sleeve (17). The first flip rod (13) is provided with a plurality of positioning holes (20) along its length direction, and the ends of the positioning bolts (19) are inserted into the positioning holes (20).

9. The highway bridge detection and measurement device according to claim 1, characterized in that: A plurality of evenly distributed tooth grooves (30) are provided on a side of the chain plate unit (36) away from the first meshing teeth (38) and the second meshing teeth (39); the sprocket (35) is in a regular polygonal structure and has a side length that is the same as the length of the chain plate (37); and each side of the sprocket (35) is fixedly connected to a plurality of driving teeth (44) that correspond one to one with the tooth grooves (30).

10. The highway bridge detection and measurement device according to claim 1, characterized in that: The movable carriage (45) comprises a mounting plate (46), and driving wheels (48) respectively connected to the four corners of the mounting plate (46) through first driving shafts (47); the driving wheels (48) are gear-shaped and meshed in the tooth grooves (30) on the chain plate (37); the first driving shaft (47) is perpendicular to the mounting plate (46) and penetrates the mounting plate (46); the top ends of the first driving shafts (47) are fixedly connected to first bevel gears (49); a second driving shaft (50) horizontally arranged above the mounting plate (46) is provided between two adjacent first driving shafts (47); both ends of the second driving shaft (50) are fixedly connected to second bevel gears (51) respectively meshed with the two first bevel gears (49); a movable motor (52) is provided on the second driving shaft (50); and a protective cover (53) is provided on the movable motor (52).

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