Road and bridge safety detection device

Abstract

The invention relates to a road bridge safety detection device which comprises supports, the supports are used for being arranged on the upper surface of a bridge, at least one support is arranged on each of the two sides of the bridge, and the supports extend to the outer side of the bridge; the suspension cable winding assembly is used for being installed on the support and moving to the position below the bridge along with the support; the suspension cable traction assembly is used for being installed on the other support and moving to the position below the bridge along with the support to directly face the suspension cable winding assembly. The pull rope is arranged between the suspension cable winding assembly and the suspension cable traction assembly, and the pull rope moves in the width direction of the bridge through the suspension cable winding assembly and the suspension cable traction assembly; and the image acquisition assembly is mounted on the pull rope, is driven by the pull rope to move below the bridge, and shoots the lower surface of the bridge. The device has the advantages that the erection time during bridge detection is shortened, and meanwhile the device can be widely applied to the upper surface of the bridge.

Description

Technical Field

[0001] The present application relates to the technical field of road and bridge detection, and in particular to a road and bridge safety detection device. Background Art

[0002] As important transportation infrastructure, the safety performance of roads and bridges is directly related to people's travel safety and the smoothness of transportation. With the increase in the service life of roads and bridges and the continuous increase in traffic volume, the potential safety hazards of roads and bridges are also increasing. Therefore, it is particularly important to conduct regular safety inspections and maintenance of roads and bridges.

[0003] For the inspection of roads and bridges currently in use, people and instruments can be lifted to the bottom of the bridge beam by a lifting vehicle to perform related operations of bridge inspection. This method can be applied to bridges across roads, and a lifting vehicle is required to drive to the road under the bridge; or it can be operated from the bridge deck by a bridge inspection vehicle, and the bridge inspection vehicle uses a telescopic arm to send people or instruments to the bottom of the bridge for bridge inspection. This method has a wide range of applicability and is widely used. After the telescopic arm is extended under the bridge, it is necessary to inspect one side of the road. Due to the influence of the inspection vehicle, it may not be used for bridges with wider sidewalks on both sides of the bridge; scaffolding can also be set up manually, and the scaffolding can use a temporary inverted support platform or a ground support platform. The erection of the scaffolding takes a long time. Therefore, in order to overcome the problems of the above structure in the application of bridge inspection, it is very urgent to set up a road bridge safety inspection device. Summary of the invention

[0004] In response to the above-mentioned problems, the present application provides a road and bridge safety detection device.

[0005] The present application provides a road and bridge safety detection device, which adopts the following technical solution: A road bridge safety detection device comprises a bracket, the bracket is used to be arranged on the upper surface of the bridge and at least one is arranged on each side of the bridge, and the bracket extends to the outside of the bridge; a cable winding assembly, the cable winding assembly is used to be installed on the bracket and moves with the bracket to the bottom of the bridge; a cable traction assembly, the cable traction assembly is used to be installed on another of the brackets and moves with the bracket to the bottom of the bridge to face the cable winding assembly; a pull rope, the pull rope is arranged between the cable winding assembly and the cable traction assembly, and the pull rope moves along the width direction of the bridge through the cable winding assembly and the cable traction assembly; an image acquisition assembly, the image acquisition assembly is installed on the pull rope, is driven by the pull rope to move under the bridge, and the image acquisition assembly takes pictures of the lower surface of the bridge.

[0006] By adopting the above technical solution, when in use, the bracket can be placed above the bridge and moved along the length direction of the bridge as needed. The bracket is on both sides of the upper surface of the bridge, so that the bracket can be widely adaptable. Then, the pull rope is directly set up between the suspension cable winding assembly and the suspension cable traction assembly connected to the bracket, without the need for more complicated scaffolding, thereby saving the time of setting up the bridge during inspection. During inspection, since the bracket can be placed directly close to the edge of the bridge, it will not be affected by the width of the sidewalk on the bridge. The lower surface of the bridge is photographed by the image acquisition assembly on the pull rope, and the staff will inspect the safety of the bridge based on the photographed pictures.

[0007] Preferably, the suspension cable winding assembly includes a shell, a winding shaft and a driving member, the winding shaft is used to wind the pull rope, the driving member is used to drive the winding shaft to rotate, the winding shaft and the driving member are installed on the shell, and the shell is used to be connected to the bracket.

[0008] By adopting the above technical solution, the take-up shaft is used to wind the pull rope. When the bridge to be inspected is a larger arch bridge, since the distance between the two ends of the bridge and the upper surface of the bridge is larger, more pull ropes can be released from the take-up shaft to compensate for the insufficient length of the bracket.

[0009] Preferably, the suspension cable traction assembly includes a shell, a first clamping roller and a second clamping roller, the first clamping roller and the second clamping roller are rotatably arranged on the shell, and the first clamping roller is connected to a driving member for driving the first clamping roller to rotate, and the first clamping roller and the second clamping roller are used to clamp the pull rope.

[0010] By adopting the above technical solution, the first clamping roller and the second clamping roller are used to clamp the pull rope, so that the first clamping roller and the second clamping roller move the pull rope, and cooperate with the cable winding assembly to make the pull rope drive the image acquisition assembly to move along the width direction of the bridge.

[0011] Preferably, a lifting assembly is provided on the shell, one lifting assembly is arranged at each end of the second clamping roller and is used to drive the second clamping roller to move closer to or away from the first clamping roller. A rope throwing assembly is installed on the suspension cable winding assembly, and the rope throwing assembly is used to throw the guide rope and pass one end of the guide rope between the first clamping roller and the second clamping roller. The guide rope is used to connect one end of the pull rope.

[0012] By adopting the above technical solution, the second clamping roller can move relative to the first clamping roller under the action of the lifting assembly, so that the first clamping roller and the second clamping roller can adapt to pull ropes of different diameters. At the same time, it is more convenient for the rope throwing assembly to insert the guide rope between the first clamping roller and the second clamping roller, thereby reducing the accuracy requirements of the rope throwing assembly.

[0013] Preferably, the lifting assembly includes a driving motor, a driving screw and a slider, both ends of the second clamping roller are rotatably connected to one of the sliders, a sliding groove is provided on the shell, and the slider is slidably connected in the sliding groove, the driving motor is fixed on the shell and the output shaft of the driving motor is coaxially fixed with the driving screw, and the slider is threadedly connected to the driving screw.

[0014] Preferably, the rope throwing assembly includes a guide sleeve, a pole and a power source, the guide sleeve is fixedly arranged on a bracket connected to the suspension cable winding assembly, the pole is slidably connected in the guide sleeve, one end of the guide rope is fixed on the pole, and the power source is used to drive the pole to slide out along the guide sleeve and fly toward the suspension cable traction assembly.

[0015] By adopting the above technical solution, the benchmark is driven by the power needle in a haystack and slides out along the guide sleeve, so that the guide sleeve guides the flight direction of the benchmark, and at the same time the power source can provide longer acceleration for the benchmark.

[0016] Preferably, the suspension cable winding assembly comprises an outer shell, a tidying frame is arranged inside the outer shell, the tidying frame comprises a plurality of partitions arranged up and down, and the guide rope is coiled on each layer of the partition.

[0017] By adopting the above technical solution, the sorting rack includes a plurality of partitions, and each partition is only arranged with one circle of guide rope, so that the guide rope can be accurately moved out along with the benchmark, reducing the tangling of the guide rope.

[0018] Preferably, the organizing frame is detachably connected to the outer shell, and the connection between the guide rope and the pull rope is detachably connected, and the guide rope is retracted from one side of the suspension cable traction assembly.

[0019] By adopting the above technical solution, the organizing rack can be detachably connected to the outer shell. When the guide rope and the pull rope are reeled in, the pull rope is first pulled by the guide rope to prevent the pull rope from falling. The guide rope can also be retracted from one side of the suspension cable traction assembly, thereby improving the safety of the guide rope and the pull rope when they are retracted, and facilitating the replacement of the guide rope in the organizing rack.

[0020] Preferably, the bracket includes a frame body, a lifting guide rod and a winch, one side of the frame body is located above the bridge, and the other side extends from one side of the bridge and is provided with a vertical guide hole, the lifting guide rod is vertically slidably connected in the guide hole, the winch is fixed on the frame body and is used to drive the lower end of the lifting guide rod to move up and down, and the suspension cable winding assembly and the suspension cable traction assembly are fixed on the lower end of the lifting guide rod.

[0021] By adopting the above technical solution, the winch is used to drive the lifting guide rod to slide up and down, so that the cable winding assembly and the cable traction assembly installed at the lower end of the lifting guide rod can reach the bottom of the bridge, which is convenient for the arrangement of the cable winding assembly and the cable traction assembly.

[0022] Preferably, the lifting guide rod is configured as a structure with at least two sections sleeved on each other, and the outermost section of the lifting guide rod is slidably connected in the guide hole.

[0023] By adopting the above technical solution, the lifting guide rod formed by mutually sleeved multi-section structures can be conveniently transported when the lifting guide rod is retracted to the shortest state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall use state of the embodiment of the present application; Figure 2 is a schematic diagram of the structure of the bracket in the embodiment of the present application; Figure 3 is a schematic structural diagram of a suspension cable winding assembly in an embodiment of the present application; Figure 4 is a structural schematic diagram of a suspension cable traction assembly in an embodiment of the present application; Figure 5 is a schematic diagram of the connection structure of the image acquisition component in an embodiment of the present application; Figure 6 It is a schematic diagram of the installation structure of the rope throwing assembly in the embodiment of the present application.

[0025] Explanation of reference numerals: 1. bridge; 2. bracket; 21. frame; 22. lifting guide rod; 23. winch; 24. guide hole; 25. counterweight; 3. suspension cable winding assembly; 31. housing; 32. winding shaft; 33. first driving member; 331. winding motor; 332. gear; 333. reducer; 4. suspension cable traction assembly; 41. housing; 411. slideway; 42. first clamping roller; 43. second clamping roller; 44. second driving member; 5. pull rope ; 51. Sorting rack; 511. Partition; 6. Image acquisition assembly; 61. Vertical rod; 62. Clamp; 7. Lifting assembly; 71. Driving motor; 72. Driving screw; 73. Sliding block; 8. Rope throwing assembly; 81. Guide sleeve; 82. Marking rod; 83. Power source; 831. Sliding rod; 832. Spring; 833. Pushing block; 834. Electromagnet; 84. Guide rope; 9. Reset assembly; 91. Reset motor; 92. Reset screw; 93. Reset block. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-6 This application is described in further detail.

[0027] The present application embodiment discloses a road bridge safety detection device, referring to Figure 1, including a bracket 2 arranged on both sides of the bridge 1, the bracket 2 is arranged on the upper surface of the bridge 1 and extends downward from both sides of the bridge 1 to the lower position of the bridge 1, a cable winding assembly 3 is installed at the lower end of the bracket 2 on one side of the bridge 1, and a cable traction assembly 4 is installed at the lower end of the bracket 2 on the other side of the bridge 1, the cable winding assembly 3 and the cable traction assembly 4 are at the same height, and a pull rope 5 is arranged between the cable winding assembly 3 and the cable traction assembly 4, the pull rope 5 can be made of steel wire rope, and the two ends of the pull rope 5 are pulled by the cable winding assembly 3 and the cable traction assembly 4 respectively, the pull rope 5 is arranged below the lower surface of the bridge 1, and an image acquisition assembly 6 is installed on the pull rope 5, the image acquisition assembly 6 can be set as a camera, preferably a rotatable camera, so that the camera can take photos of a larger area, so that the staff can perform safety inspections through the photos obtained by the image acquisition assembly 6.

[0028] In this embodiment, the bracket 2 can be fixedly mounted on a transport vehicle, which can be a pickup truck, a truck or a tricycle. The transport vehicle travels on the upper surface of the bridge 1, so that the bracket 2 can be driven by the transport frame and can move along the length direction of the bridge 1, thereby facilitating continuous detection between two piers of the bridge 1.

[0029] At the same time, rollers can be installed on the bracket 2, and a detachable counterweight 25 can be arranged on the bracket 2. The rollers are used to support the bracket 2, so that the bracket 2 can be pushed more conveniently through the rollers and move along the length direction of the bridge 1 on the upper surface of the bridge 1. When there are wider pedestrian roads on both sides of the bridge 1, the bracket 2 does not need to be installed on a transport vehicle, but the bracket 2 is directly placed on the pedestrian road, which is convenient for the inspection of the bridge 1.

[0030] refer to Figure 2The support 2 includes a frame 21, a lifting guide rod 22 and a winch 23. One side of the frame 21 is used to place a counterweight 25, and the other side extends from the guardrail of the bridge 1 to the outside of the bridge 1. The frame 21 is provided with a guide hole 24 at the outside of the bridge 1. The guide hole 24 is vertically arranged, and the lifting guide rod 22 is vertically slidably connected in the guide hole 24. The lower end of the lifting guide rod 22 is used to install the suspension cable winding assembly 3 or the suspension cable traction assembly 4. The winch 23 is fixed on the frame 21 and located above the frame 21. The end of the steel wire rope of the winch 23 is used to be fixed on the lower end of the lifting guide rod 22 or the suspension cable winding assembly 3 or the suspension cable traction assembly 4. The winch 23 can vertically move the suspension cable winding assembly 3 and the suspension cable traction assembly 4 under the action of the lifting guide rod 22, and adjust the height of the suspension cable winding assembly 3 and the suspension cable traction assembly 4 so that the suspension cable winding assembly 3 and the suspension cable traction assembly 4 reach the bottom of the bridge 1. In this embodiment, the lifting guide rod 22 can be configured to have two sections that are nested with each other, or it can be configured to have more than two sections. The outermost section of the lifting guide rod 22 is slidably connected in the guide hole 24, and the remaining one or more sections are slidably connected in the outermost section to reduce the length of the lifting guide rod 22 after contraction, thereby facilitating the transportation of the bracket 2.

[0031] refer to Figure 3 The cable winding assembly 3 includes a housing 31, a winding shaft 32 and a first driving member 33. The winding shaft 32 is rotatably connected to the housing 31. The housing 31 is fixed to the lower end of the lifting guide rod 22. The first driving member 33 is used to drive the winding shaft 32 to rotate. One end of the pull rope 5 is fixed to the winding shaft 32. The pull rope 5 can be wound or unwound by winding the winding shaft 32. The first driving member 33 in this embodiment includes a winding motor 331, a gear 332 and a reducer 333. The reducer 333 is fixed inside the housing 31. The output shaft of the winding motor 331 is coaxially fixed with the input shaft of the reducer 333. The reducer 333 is used to drive the gear 332 to rotate. The gear 332 is coaxially fixed with the winding shaft 32, so that the winding motor 331 drives the winding shaft 32 to rotate on one side of the winding shaft 32. The winding motor 331 can use a servo motor or a stepping motor to accurately control the winding and unwinding amount of the pull rope 5.

[0032] refer to Figure 4The cable traction assembly 4 includes a shell 41, a first clamping roller 42 and a second clamping roller 43. The first clamping roller 42 and the second clamping roller 43 are arranged up and down and are rotatably connected to the shell 41. The shell 41 is fixed to the lower end of the lifting guide rod 22. The first clamping roller 42 and the second clamping roller 43 are used to clamp the pull rope 5, and a second driving member 44 is connected to the first clamping roller 42. In this embodiment, the second driving member 44 can adopt the same structure as the first driving member 33, so that the second driving member 44 is used to drive the first clamping roller 42 to rotate. A lifting assembly 7 can be installed on the second clamping roller 43. The lifting assembly 7 is used to adjust the distance between the second clamping roller 43 and the first clamping roller 42 so as to place the pull rope 5 between the first clamping roller 42 and the second clamping roller 43. When in use, when the first clamping roller 42 rotates under the action of the second driving member 44, the pull rope 5 can move toward or away from the suspension cable traction assembly 4, thereby driving the image acquisition assembly 6 located on the pull rope 5 to move along the width direction of the bridge 1 below the bridge 1, thereby enabling the image acquisition assembly 6 to take pictures of various parts of the lower surface of the bridge 1.

[0033] refer to Figure 4 The lifting assembly 7 includes a driving motor 71, a driving screw 72 and a slider 73. The driving motor 71 is fixed on the outer wall of the housing 41. The driving screw 72 is rotatably mounted on the housing 41 and is vertically arranged. The driving motor 71 can be a servo motor or a stepping motor. The output shaft of the driving motor 71 is coaxially fixedly connected with the driving screw 72. A vertical slide 411 is provided on the housing 41. The slider 73 is slidably connected in the slide 411. The two ends of the second clamping roller 43 are rotatably mounted on the slider 73, so that the second clamping roller 43 is connected to the housing 41 through the slider 73. The slider 73 is threadedly connected to the driving screw 72. A slider 73 is arranged at both ends of the second clamping roller 43, so that the two lifting assemblies 7 can move the second clamping roller 43 vertically at the same time.

[0034] When in use, one end of the pull rope 5 on the reel 32 moves from one side of the bottom of the bridge 1 to the cable traction assembly 4 on the other side of the bridge 1 and is inserted between the first clamping roller 42 and the second clamping roller 43. The lifting assembly 7 clamps the pull rope 5 with the first clamping roller 42 and the second clamping roller 43. When the image acquisition assembly 6 on the pull rope 5 needs to be moved, the image acquisition assembly 6 is fixed on the pull rope 5, and the reel 32 and the first clamping roller 42 simultaneously move the pull rope 5 in one direction. When the height of the image acquisition assembly 6 needs to be lowered, the first clamping roller 42 can be fixed, and the pull rope 5 only needs to be unwound by the reel 32. When this embodiment is used for a partially larger arched bridge 1 during operation, since the length of the lifting guide rod 22 cannot reach the lower part of the two ends of the arch of the bridge 1, the pull rope 5 is passed through the bridge 1 from below from the middle position of the bridge 1, which is the highest part of the arch of the bridge 1, and when it is moved to the end position of the arch of the bridge 1, the length of the pull rope 5 can make up for the insufficient length of the lifting guide rod 22, and the middle part of the pull rope 5 can still be arranged below the bridge 1.

[0035] refer to Figure 5 , a vertical rod 61 is fixedly provided on the image acquisition component 6, and a clamping claw 62 is provided at the upper end of the vertical rod 61. The clamping claw 62 can be connected to the driving mechanism. The clamping claw 62 is connected to the vertical rod 61 in a rotating connection. The driving mechanism drives the two symmetrically arranged clamping claws 62 to open or clamp. The clamping claw 62 rotates at one end away from the vertical rod 61 to clamp on the outer wall of the pull rope 5. At the same time, a groove can be provided at the bottom of the shell 31, and the width of the groove can be the same as the width of the vertical rod 61. When the image acquisition component 6 moves to the bottom of the shell 31 along with the pull rope 5, the vertical rod 61 is in the groove, the clamping claw 62 is inside the shell 31 and can be used to prevent the image acquisition component 6 from escaping from the shell 31. After the clamping claw 62 is opened, it is not completely separated from the pull rope 5, and the pull rope 5 is inside the two clamping claws 62. When the pull rope 5 is needed to drive the image acquisition assembly 6 to move, the two clamping claws 62 are clamped on the pull rope 5, and the movement of the pull rope 5 can drive the clamping claws 62 to escape from the groove at the bottom of the shell 31.

[0036] refer to Figure 6In another embodiment, a road bridge safety detection device disclosed also includes a rope throwing assembly 8, which includes a guide sleeve 81, a pole 82 and a power source 83. A guide rope 84 is connected to the pole 82. The guide rope 84 is made of a lightweight material. The end of the guide rope 84 away from the pole 82 is used to connect the pull rope 5. The guide rope 84 and the pull rope 5 can be quickly connected by a carabiner. The pole 82 is placed in the guide sleeve 81, and the guide sleeve 81 is arranged toward the suspension cable traction assembly 4. The power source 83 is used to provide an initial velocity for the pole 82, so that the pole 82 can fly out of the guide sleeve 81 and enter between the first clamping roller 42 and the second clamping roller 43. Since the second clamping roller 43 can move downward, the distance between the first clamping roller 42 and the second clamping roller 43 is increased, thereby increasing the probability of the pole 82 entering between the first clamping roller 42 and the second clamping roller 43. One of the ways to provide the power source 83 can be to use gunpowder, so that one end of the guide sleeve 81 drives the movement of the pole 82 by putting an appropriate amount of gunpowder.

[0037] The power source 83 in this embodiment includes a slide bar 831, a spring 832 and a push block 833. One end of the push block 833 extends from the side wall of the guide sleeve 81 into the guide sleeve 81 and abuts against the end of the mark rod 82. The spring 832 is kept in a compressed state first. The push bar is set on the slide bar 831. An electromagnet 834 is fixedly set on the housing 31. The position of the push block 833 is limited by the electromagnet 834 so that the spring 832 is in a compressed position. Then, when the electromagnet 834 releases the spring 832, the spring 832 pushes the push block 833 along the direction of the slide bar 831. The slide bar 831 is set parallel to the guide sleeve 81, so that the push block 833 drives the mark rod 82 to move at the same time and provides a sufficient initial speed for the mark rod 82. The position of the electromagnet 834 can be arranged in multiple positions along the length direction of the slide bar 831 as needed, and different electromagnets 834 are selected according to the initial speed required by the mark rod 82 to block the push block 833.

[0038] A reset assembly 9 is also provided in the housing 31, and the reset assembly 9 includes a reset motor 91, a reset screw 92 and a reset block 93. The reset motor 91 is fixed in the housing 31, the reset screw 92 is rotatably connected in the housing 31, the reset block 93 is slidably connected in the housing 31 and is threadedly connected with the reset screw 92, the reset screw 92 is arranged parallel to the slide rod 831, and when the reset block 93 is driven by the reset screw 92, the reset block 93 will push the block 833 to move in the direction of the compression spring 832.

[0039] A tidying rack 51 is also provided in the housing 31. The tidying rack 51 includes a plurality of partitions 511 arranged up and down. The tidying rack 51 is used to place the guide rope 84. The guide rope 84 is coiled on the upper surface of each partition 511 and then arranged downward in sequence, so that the guide rope 84 can be driven to fly out of the housing 31 accurately when the marker 82 moves, so as to prevent the guide rope 84 from getting tangled. The tidying rack 51 is detachably provided in the housing 31. A side door can be provided on the housing 31 so that the tidying rack 51 can slide horizontally into the housing 31. When in use, the guide rope 84 first guides the pull rope 5 into the suspension cable traction assembly 4, and then after completing the inspection of the bottom of the bridge 1, the guide rope 84 recycles the pull rope 5 into the suspension cable winding assembly 3. Since the guide rope 84 is still between the suspension cable traction assembly 4 and the suspension cable winding assembly 3, the suspension cable traction assembly 4 and the suspension cable winding assembly 3 are then raised, and the staff separates the connection between the guide rope 84 and the pull rope 5, and then retracts the guide rope 84 from one side of the suspension cable traction assembly 4, which can reduce the road driving safety under the bridge 1 caused by the pull rope 5 automatically falling due to gravity. At the same time, during the retraction process of the guide rope 84, a hydrogen balloon can be connected to the end of the guide rope 84 away from the suspension cable traction assembly 4 to keep the guide rope 84 in a floating state.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A road and bridge safety detection device, characterized in that: The invention comprises a bracket (2), wherein the bracket (2) is used to be arranged on the upper surface of the bridge (1) and at least one bracket is arranged on each side of the bridge (1), and the bracket (2) extends to the outside of the bridge (1); A suspension cable winding assembly (3), the suspension cable winding assembly (3) being used to be installed on the support (2) and moving with the support (2) to the bottom of the bridge (1); A suspension cable traction assembly (4), the suspension cable traction assembly (4) being used to be mounted on another of the brackets (2) and to be directly opposite to the suspension cable winding assembly (3) as the bracket (2) moves to the bottom of the bridge (1); A pull rope (5), the pull rope (5) being arranged between the suspension cable winding assembly (3) and the suspension cable pulling assembly (4), and the pull rope (5) moving along the width direction of the bridge (1) through the suspension cable winding assembly (3) and the suspension cable pulling assembly (4); An image acquisition component (6) is mounted on the pull rope (5) and is driven by the pull rope (5) to move below the bridge (1) and the image acquisition component (6) takes a picture of the lower surface of the bridge (1).

2. A road and bridge safety detection device according to claim 1, characterized in that: The suspension cable winding assembly (3) comprises a housing (31), a winding shaft (32) and a driving member, wherein the winding shaft (32) is used to wind the pull rope (5), and the driving member is used to drive the winding shaft (32) to rotate, and the winding shaft (32) and the driving member are mounted on the housing (31), and the housing (31) is used to be connected to the bracket (2).

3. A road and bridge safety detection device according to claim 1, characterized in that: The suspension cable traction assembly (4) comprises a housing (41), a first clamping roller (42) and a second clamping roller (43); the first clamping roller (42) and the second clamping roller (43) are rotatably arranged on the housing (41), and the first clamping roller (42) is connected to a driving member for driving the first clamping roller (42) to rotate; the first clamping roller (42) and the second clamping roller (43) are used to clamp the pull rope (5).

4. A road and bridge safety detection device according to claim 3, characterized in that: The housing (41) is provided with a lifting assembly (7), one lifting assembly (7) is arranged at each end of the second clamping roller (43), and the lifting assembly (7) is used to drive the second clamping roller (43) to move closer to or away from the first clamping roller (42). The suspension cable winding assembly (3) is provided with a rope throwing assembly (8), and the rope throwing assembly (8) is used to throw a guide rope (84) and insert one end of the guide rope (84) between the first clamping roller (42) and the second clamping roller (43). The guide rope (84) is used to connect one end of the pull rope (5).

5. A road and bridge safety detection device according to claim 4, characterized in that: The lifting assembly (7) comprises a driving motor (71), a driving screw (72) and a slider (73); both ends of the second clamping roller (43) are rotatably connected to one of the sliders (73); a slide groove (411) is provided on the housing (41); the slider (73) is slidably connected in the slide groove (411); the driving motor (71) is fixed on the housing (41) and the output shaft of the driving motor (71) is coaxially fixed with the driving screw (72); and the slider (73) is threadedly connected to the driving screw (72).

6. A road and bridge safety detection device according to claim 4, characterized in that: The rope throwing assembly (8) comprises a guide sleeve (81), a pole (82) and a power source (83); the guide sleeve (81) is fixedly arranged on a bracket (2) connected to the suspension cable winding assembly (3); the pole (82) is slidably connected in the guide sleeve (81); one end of the guide rope (84) is fixed on the pole (82); and the power source (83) is used to drive the pole (82) to slide out along the guide sleeve (81) and fly toward the suspension cable pulling assembly (4).

7. A road and bridge safety detection device according to claim 4, characterized in that: The suspension cable winding assembly (3) comprises a housing (31), wherein a tidying frame (51) is arranged inside the housing (31), wherein the tidying frame (51) comprises a plurality of partitions (511) arranged up and down, and wherein the guide rope (84) is coiled around each layer of the partitions (511).

8. A road and bridge safety detection device according to claim 7, characterized in that: The arrangement frame (51) is detachably connected to the housing (31), and the guide rope (84) is detachably connected to the pull rope (5), and the guide rope (84) is retracted from one side of the suspension cable traction assembly (4).

9. A road and bridge safety detection device according to claim 1, characterized in that: The support (2) comprises a frame body (21), a lifting guide rod (22) and a winch (23); one side of the frame body (21) is located above the bridge (1); the other side of the frame body (21) extends from one side of the bridge (1) and is provided with a vertical guide hole (24); the lifting guide rod (22) is vertically slidably connected in the guide hole (24); the winch (23) is fixed to the frame body (21) and is used to drive the lower end of the lifting guide rod (22) to move up and down; the suspension cable winding assembly (3) and the suspension cable pulling assembly (4) are fixed to the lower end of the lifting guide rod (22).

10. A road and bridge safety detection device according to claim 9, characterized in that: The lifting guide rod (22) is configured as a structure in which at least two sections are sleeved together, and the outermost section of the lifting guide rod (22) is slidably connected in the guide hole (24).

Images