Light and small universal T-beam bridge detection device

Abstract

The utility model provides a light and small universal T-beam bridge detection device. Comprising a telescopic beam, cameras and a working arm, the telescopic beam is installed on a base rotating disc through a swing arm, one end of the working arm is installed at the lower end of the telescopic beam through a slewing bearing rotating disc and a stretching mechanism, the cameras are evenly installed on the working arm, and the working arm comprises a plurality of working sections. And cameras for respectively shooting the bottom of the bridge, the flanges of the bridge and the beam ribs are mounted on the operation sections. By carrying a large number of cameras, one-time and comprehensive inspection of the bridge bottom condition can be achieved, the quality and efficiency of bridge detection are improved, personnel safety is guaranteed, and the device is suitable for disease detection of T-shaped girder bridges and also suitable for bridges with single bridge bottom structures such as hollow slab girders, small box girders and cast-in-place box girders. The device is also outstanding in the aspects of improving the detection quality and the operation efficiency.

Description

Technical Field

[0001] The utility model relates to a light, small and universal T-beam bridge detection device. Background Technique

[0002] As one of the widely used bridge types, the bottom structure of the T-beam bridge is complex. A narrow strip is formed between the webs of two adjacent T-beams. In addition, the arrangement of diaphragms divides the narrow strip into multiple rectangular areas, which is not conducive to the erection of tracks and disease detection. Therefore, a device that can move stably in a narrow area is needed to comprehensively observe the bottom condition of the bridge.

[0003] At present, bridge detection usually adopts visual inspection or equipment such as telescopes and bridge inspection vehicles for manual close inspection and observation, or long-distance observation and photographing of the bridge structure. Although conventional detection means are easy to implement, the detection range is limited, the detection process is time-consuming and laborious, and the missed detection rate is high. In addition, when a bridge inspection vehicle detects a bridge, not only is the detection cost high, but also it is necessary to manually lean over each part of the bottom of the bridge. The inspection personnel are often dozens of meters above the ground, posing a great safety hazard.

[0004] According to the situation of bridge detection operations, most old bridges in mountainous areas usually have two lanes. How to complete the bridge maintenance work tasks safely, efficiently and economically has become a realistic problem faced by front-line bridge maintenance workers in China.

[0005] For example, a vehicle-mounted bridge inspection device disclosed in CN220619781U installs a camera on an inspection bracket that can be horizontally and vertically telescoped, and uses an automobile as the carrier of the bracket. Since it uses a telescopic structure as the support and moving part of the camera, it can only install the camera on the surface of the telescopic rod or the end of the telescopic rod. As a result, during the process of inspecting the bridge, the telescopic rod needs to be continuously telescoped to meet the need of photographing the entire bottom of the bridge, resulting in low photographing efficiency. The telescopic rod requires high-strength materials to ensure its service life. Content of the Utility Model

[0006] To solve the above technical problems, the utility model provides a light, small and universal T-beam bridge detection device.

[0007] The utility model is achieved through the following technical solutions.

[0008] A lightweight and universal T-beam bridge detection device provided by the utility model; it includes a telescopic beam, a camera, and an operating arm. The telescopic beam is installed on a base turntable through a swing arm. One end of the operating arm is installed at the lower end of the telescopic beam through a slewing bearing turntable and an extension mechanism. A number of cameras are evenly installed on the operating arm. The operating arm includes a number of operating segments. One end of the operating segments after being sequentially hinged is hinged to one end of the extension mechanism. The other end of the extension mechanism is fixed to the lower end of the slewing bearing turntable, and the slewing bearing turntable is installed on the telescopic beam. Cameras for respectively photographing the bottom of the bridge, the bridge flange, and the beam rib are installed on the operating segments.

[0009] A receiving groove extending along its length direction is machined on the upper end surface of the operating segment. One end of the receiving groove is installed with an operating segment. The joints on each operating segment are hinged in the receiving grooves on the adjacent operating segments through hinge shafts.

[0010] The hinge shaft is fixedly connected to the joint and movably connected to the receiving groove respectively. A gear is fixedly installed on the hinge shaft. The gear cooperates with a rack installed in the receiving groove. The rack is installed on the track through a slider, and the track is fixed to the bottom of the receiving groove. The middle of the track is also connected to an electric folding push rod installed in the receiving groove.

[0011] A camera track is installed in the middle of the bottom end of the receiving groove. Two groups of moving platforms are installed on the camera track. One group of moving platforms is independently installed with a camera, and the other group of moving platforms is installed with an electric swing machine. A support rod is fixedly installed at the swing arm end of the electric swing machine, and a rotating cloud platform is installed at the top of the support rod. Multiple cameras are installed on the rotating cloud platform.

[0012] The rotating cloud platform can rotate horizontally on the support rod.

[0013] The extension mechanism is L-shaped. A link mechanism is installed on the extension mechanism. The link mechanism includes an electric extension push rod, a fixed support rod, and a moving support rod. The push rod end of the electric extension push rod, the fixed support rod, and one end of the moving support rod are jointly hinged. The other end of the electric extension push rod and the other end of the fixed support rod are respectively hinged to both ends of the extension mechanism. The other end of the moving support rod is hinged to the operating arm.

[0014] A lead screw is installed on one side of the telescopic beam. One end of the lead screw is connected to a slide table motor fixed to one end of the telescopic beam. The middle of the lead screw is installed in the slide table. A slider is installed on one side surface of the slide table. The slider is assembled on the track on the telescopic beam. The two ends of the other side surface of the slide table relative to the slider are respectively connected to one end of the swing arm and one end of an electric flipping push rod. The other end of the electric flipping push rod is installed on the swing arm. The other end of the swing arm is installed on the base turntable through a column.

[0015] An expansion motor is also assembled on the telescopic beam.

[0016] The beneficial effects of the present utility model are as follows: By being equipped with a large number of cameras, it can achieve a one-time and comprehensive inspection of the bottom condition of the bridge, improve the quality and efficiency of bridge inspection, and ensure personnel safety. This device is not only applicable to the disease detection of T-shaped beam bridges, but also performs outstandingly in improving the inspection quality and operation efficiency for bridge types with a single bottom structure such as hollow slab beams, small box girders, and cast-in-place box girders. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a partial schematic diagram of the link mechanism when the working arm of the present utility model is extended;

[0019] Figure 3 is a partial schematic diagram of the link mechanism when the working arm of the present utility model is retracted;

[0020] Figure 4 is a partial schematic diagram of the joint of the working arm of the present utility model;

[0021] Figure 5 is a partial schematic diagram of the camera installation on the working arm of the present utility model;

[0022] In the figure: 1 - base, 2 - base turntable, 3 - column, 4 - swing arm, 5 - sliding table, 6 - telescopic beam, 7 - camera, 8 - working arm, 81 - gear, 82 - rack, 83 - electric folding push rod, 84 - camera track, 85 - moving platform, 86 - working section, 87 - joint, 88 - receiving groove, 9 - electric flipping push rod, 10 - sliding table motor, 11 - lead screw, 12 - slider, 13 - track, 14 - telescopic motor, 15 - slewing bearing turntable, 16 - extension mechanism, 17 - link mechanism, 171 - electric extension push rod, 172 - fixed support rod, 173 - moving support rod, 18 - rotating cloud platform, 19 - support rod, 20 - electric swing machine. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions of the present utility model will be further described below, but the scope of protection claimed is not limited thereto.

[0024] As Figure 1As shown in the figure, a lightweight and universal T-beam bridge detection device provided by the present application includes a telescopic beam 6, a camera 7, and an operating arm 8. The telescopic beam 6 is installed on a base turntable 2 through a swing arm 4. The base turntable 2 is fixed on a base 1, and the base 1 is fixedly connected to the chassis girder of the truck carriage. One end of the operating arm 8 is installed at the lower end of the telescopic beam 6 through a slewing bearing turntable 15 and an extension mechanism 16. A number of cameras 7 are evenly installed on the operating arm 8. The operating arm 8 includes a number of operating segments 86. One end of the sequentially articulated operating segments 86 is articulated to one end of the extension mechanism 16. The other end of the extension mechanism 16 is fixed to the lower end of the slewing bearing turntable 15. The slewing bearing turntable 15 is installed on the telescopic beam 6. Cameras 7 for photographing the bottom of the bridge, the bridge flange, and the beam rib are installed on the operating segment 86.

[0025] This device is loaded on a small truck. A certain number of cameras are carried by an extendable operating arm. Through the rotation, extension control of relevant components and their mutual cooperation, the operating arm is extended to the area to be inspected under the bridge. The vehicle slowly moves to drive the camera to move, and the bottom condition of the bridge is comprehensively photographed. With the assistance of an image processing and analysis algorithm, the automatically identified diseases and calculation analysis of the photographed disease images are carried out. Instead of "personnel carrying equipment to work under the bridge", "equipment self-detection" improves the quality and efficiency of bridge detection operations while enhancing the safety of detection personnel. Combined with the application of the existing bridge regular inspection system, rapid detection operations for diseases of most old bridges in mountainous areas can be realized.

[0026] A receiving groove 88 extending along its length direction is machined on the upper end surface of the operating segment 86. One end of the receiving groove 88 is installed with an operating segment 86. The joint 87 on each operating segment 86 is articulated in the receiving groove 88 of the adjacent operating segment 86 through a hinge shaft.

[0027] The hinge shaft is fixedly connected and movably connected to the joint 87 and the receiving groove 88 respectively. A gear 81 is fixedly installed on the hinge shaft. The gear 81 cooperates with a rack 82 installed in the receiving groove 88. The rack 82 is installed on a track 13 through a slider 12. The track 13 is fixed to the bottom of the receiving groove 88. The middle of the track 13 is also connected to an electric folding push rod 83 installed in the receiving groove 88. The detection personnel control the electric folding push rod 83 to push and pull the rack 82 to drive the gear 81 to rotate, realizing 180-degree folding at the joint. The multi-joint linkage forms the opening and folding actions of the entire operating arm 8.

[0028] At the bottom of the accommodation groove 88, a camera rail 84 is installed in the middle thereof. Two sets of mobile platforms 85 are installed on the camera rail 84. A camera 7 is independently installed on one set of mobile platforms 85, and an electric swing machine 20 is installed on the other set of mobile platforms 85. A support rod 19 is fixedly installed at the swing arm end of the electric swing machine 20, and a rotating cloud platform 18 is installed at the top of the support rod 19. Multiple cameras 7 are installed on the rotating cloud platform 18. As Figure 1 the camera numbered in, the mobile platform 85 can slide along the camera rail 84 to adjust the position of the camera 7 on the working arm 8; while the other cameras 7 for shooting the flange and beam rib are installed on the rotating cloud platform 18 and are connected to the mobile platform 85 on the cross table 8 through the rotating cloud platform 18, the support rod 19 and the electric swing machine 20. The inspection personnel can control the support rod 19 to automatically pop up and fall down to realize the quick storage of shooting devices such as cameras.

[0029] The camera for shooting the beam rib can rotate downward vertically by a certain angle to shoot the bridge bearing, as Figure 1 the camera numbered in, and its shooting range covers the beam rib and the bearing.

[0030] The two cameras on the left and right for shooting the beam rib can horizontally rotate 90° through the rotating cloud platform 18 to shoot the front cross diaphragm and the rear cross diaphragm, as Figure 1 the camera numbered in, and its shooting range not only includes the beam rib and the bearing, but also includes the front cross diaphragm and the rear cross diaphragm arranged at intervals under the bridge.

[0031] The rotating cloud platform 18 can rotate horizontally on the support rod 19.

[0032] The extension mechanism 16 is L-shaped. A link mechanism 17 is installed on the extension mechanism 16. The link mechanism 17 includes an electric extension push rod 171, a fixed support rod 172, and a moving support rod 173. The push rod end of the electric extension push rod 171 is jointly hinged with one end of the fixed support rod 172 and the moving support rod 173. The other end of the electric extension push rod 171 and the other end of the fixed support rod 172 are respectively hinged at both ends of the extension mechanism 16. The other end of the moving support rod 173 is hinged on the working arm 8, and the automatic extension of the working arm 8 is realized through the link mechanism 17.

[0033] A lead screw 11 is installed on one side of the telescopic beam 6. One end of the lead screw 11 is connected to a slide table motor 10 fixed at one end of the telescopic beam 6. The middle of the lead screw 11 is installed in the slide table 5 and is in threaded cooperation with the inside of the slide table 5. A slider 12 is installed on one side surface of the slide table 5, and the slider 12 is assembled on the track 13 on the telescopic beam 6. The slider motor 10 drives the slide table 5 to slide along the track 13 on the telescopic beam 6 through the lead screw 11. However, since the vertical movement of the slide table 5 is restricted due to being fixed on the swing arm 4, the telescopic beam 6 slides up and down under the drive of the slider motor.

[0034] Both ends of the other side of the sliding table 5 relative to the slider 12 are respectively connected to one end of the swing arm 4 and one end of the electric tilting push rod 9. The other end of the electric tilting push rod 9 is installed on the swing arm 4. The other end of the swing arm 4 is installed on the base turntable 2 through the column 3, and the swing arm 4 and the column 3 are welded into one body.

[0035] The working arm length of this device is 11 to 12 meters, and it can be installed on ordinary small trucks, which is convenient to use and can meet the inspection needs of most old bridges in mountainous areas.

Claims

1. A light and small universal T-beam bridge detection device, comprising a telescopic beam (6), a camera (7), and an operating arm (8), characterized in that: The telescopic beam (6) is mounted on a base turntable (2) via a swing arm (4); one end of a working arm (8) is mounted on the lower end of the telescopic beam (6) via a slewing bearing turntable (15) and an extension mechanism (16); a plurality of cameras (7) are evenly mounted on the working arm (8); the working arm (8) comprises a plurality of working segments (86); one end of the plurality of working segments (86) is hinged to one end of the extension mechanism (16) after being hinged in sequence; the other end of the extension mechanism (16) is fixed to the lower end of the slewing bearing turntable (15); the slewing bearing turntable (15) is mounted on the telescopic beam (6); and cameras (7) are mounted on the working segments (86) for photographing the bottom of the bridge, the flange of the bridge and the beam ribs respectively.

2. The light and small universal T-beam bridge detection device according to claim 1, characterized in that: The upper end surface of the working segment (86) is processed with a receiving groove (88) extending along the length direction thereof, and the working segment (86) is installed at one end of the receiving groove (88), and the joint (87) on each working segment (86) is hingedly connected to the receiving groove (88) on the adjacent working segment (86) through a hinge shaft.

3. The light and small universal T-beam bridge detection device according to claim 2, characterized in that: The hinge shaft is fixedly connected to the joint (87) and the receiving groove (88) and is movably connected respectively. A gear (81) is fixedly installed on the hinge shaft. The gear (81) cooperates with a rack (82) installed in the receiving groove (88). The rack (82) is installed on a track (13) through a slider (12). The track (13) is fixed to the bottom of the receiving groove (88). The middle part of the track (13) is also connected to an electric folding push rod (83) installed in the receiving groove (88).

4. The light and small universal T-beam bridge detection device according to claim 3, characterized in that: A camera track (84) is installed at the bottom of the receiving groove (88) in the middle thereof, and two groups of mobile platforms (85) are installed on the camera track (84), one group of mobile platforms (85) is independently installed with a camera (7), and the other group of mobile platforms (85) is installed with an electric swing machine (20), a support rod (19) is fixedly installed at the rocker arm end of the electric swing machine (20), a rotating platform (18) is installed on the top of the support rod (19), and a plurality of cameras (7) are installed on the rotating platform (18).

5. The light and small universal T-beam bridge detection device according to claim 4, characterized in that: The rotating platform (18) can be rotated horizontally on the support rod (19).

6. The light and small universal T-beam bridge detection device according to claim 1, characterized in that: The extension mechanism (16) is L-shaped. A connecting rod mechanism (17) is installed on the extension mechanism (16). The connecting rod mechanism (17) comprises an electric extension push rod (171), a fixed support rod (172), and a movable support rod (173). The push rod end of the electric extension push rod (171) and one end of the fixed support rod (172) and the movable support rod (173) are hinged together. The other end of the electric extension push rod (171) and the other end of the fixed support rod (172) are hinged to two ends of the extension mechanism (16) respectively. The other end of the movable support rod (173) is hinged to the working arm (8).

7. The light and small universal T-beam bridge detection device according to claim 1, characterized in that: A lead screw (11) is installed on one side of the telescopic beam (6), one end of the lead screw (11) is connected to a slide motor (10) fixed to one end of the telescopic beam (6), the middle part of the lead screw (11) is installed in the slide (5), a slider (12) is installed on one side of the slide (5), the slider (12) is assembled on a track (13) on the telescopic beam (6), the two ends of the other side of the slide (5) relative to the slider (12) are respectively connected to one end of the swing arm (4) and one end of the electric flip push rod (9), the other end of the electric flip push rod (9) is installed on the swing arm (4), and the other end of the swing arm (4) is installed on the base turntable (2) through a column (3).

8. The light and small universal T-beam bridge detection device according to claim 7, characterized in that: The telescopic beam (6) is also equipped with a telescopic motor (14).

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