A device for detecting static displacement of a bridge

Abstract

The application provides a bridge static displacement detection device, which comprises a support, one end of the support is provided with a rotating disc, an angle sensor and a dial gauge are rotationally connected to the side of the rotating disc, the dial gauge corresponds to the angle sensor, a plummet is arranged on the lower side of the dial gauge, a plurality of rubber tubes are arranged on the lower side of the support, a suction cup is arranged on one end of the rubber tube, the suction cup is connected to the rubber tube, a supporting plate is arranged on the upper side of the rotating disc, a pressing plate is rotationally connected to the upper side of the supporting plate, a fixing rod is slidingly connected in the supporting plate, the fixing rod corresponds to the dial gauge, and a connecting rod is fixedly connected between one end of the pressing plate and the suction cup. In the application, reading is not manually performed, the detection efficiency is improved, the reading accuracy is improved, and long-term observation can be realized after installation without workers observing beside. Moreover, more workers are not needed for installation, and an installation frame is not needed to be additionally arranged, so that the use of workers is reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of bridge inspection technology, specifically to a device for detecting the static displacement of bridges. Background Technology

[0002] Bridge load testing is the only method that can accurately assess the bearing capacity of a bridge. The displacement testing instruments used for bridge load testing mainly include mechanical displacement testing equipment and electrical testing equipment, among which electromechanical dial gauges and levels are the most commonly used. However, when using dial gauges for deflection testing, it is necessary to set up installation supports. Temporary facilities require a lot of manpower and resources. At the same time, setting up such supports at the bottom of bridges over water, navigation (vehicle) bridges, and high-pier, long-span bridges is troublesome and dangerous. In addition, existing dial gauges require manual reading, which is not only inefficient, but also makes it impossible to observe the static displacement of the bridge for a long time because of the need for human presence.

[0003] Therefore, the present invention provides a device for detecting the static displacement of a bridge. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a device for detecting the static displacement of bridges, thereby solving the problems mentioned in the background section. This invention eliminates the need for manual readings, improving detection efficiency and accuracy. Furthermore, it eliminates the need for continuous worker observation after installation, enabling long-term monitoring. The installation requires minimal manpower and does not require additional mounting frames, further reducing labor costs and increasing efficiency. It can be used on the bottom of bridges over water, navigation (vehicle) bridges, and high-pier, long-span bridges, enhancing its applicability. It also prevents the dial indicator from shaking during detection, improving the accuracy of the data obtained.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bridge static displacement detection device, comprising a support, a turntable mounted on one end of the support, an angle sensor and a dial indicator rotatably mounted on the side of the turntable, the dial indicator corresponding to the angle sensor, and a plumb bob mounted on the lower side of the dial indicator; multiple rubber cylinders mounted on the lower side of the support, a suction cup mounted on one end of each rubber cylinder, the suction cup communicating with the rubber cylinder; a support plate mounted on the upper side of the turntable, a pressure plate rotatably mounted on the upper side of the support plate, a fixing rod slidably mounted inside the support plate, the fixing rod corresponding to the dial indicator; and a connecting rod fixedly connected between one end of the pressure plate and the suction cup, the fixing rod being fixedly connected to the other end of the pressure plate.

[0006] Furthermore, the turntable has a rotating groove, and multiple rotating rods are installed on one side of the dial indicator, with the rotating rods rotating in conjunction with the rotating groove.

[0007] Furthermore, the dial indicator is equipped with a pointer, and the input end of the angle sensor is fixedly connected to the pointer.

[0008] Furthermore, the suction cup has multiple ventilation holes and multiple baffles installed inside. One end of each baffle is fixedly connected to the suction cup, and a spring is installed between the baffle and the rubber tube.

[0009] Furthermore, the bottom of the bracket is equipped with multiple brushes, and multiple rubber tubes and suction cups are located between the multiple brushes.

[0010] Furthermore, the bracket has a groove inside, in which a heater, a control board, a battery, and a signal transmitter are installed, and the heater, control board, battery, and signal transmitter are connected by wires.

[0011] Furthermore, the output terminals of the angle sensors are connected to the control board via wires.

[0012] Furthermore, multiple resistance wires are installed on the lower side of the bracket, and the resistance wires are connected to the heater via wires.

[0013] Furthermore, the resistance wire is positioned between multiple rubber tubes, and the rubber tubes are made of a metal material with good thermal conductivity.

[0014] Furthermore, the bottom of the bracket is provided with multiple through slots and multiple screw holes, with pull ropes installed in the through slots and screws installed in the screw holes.

[0015] The beneficial effects of the present invention: The present invention provides a device for detecting the static displacement of a bridge, comprising a bracket; a turntable; an angle sensor; a dial indicator; a rubber cylinder; a suction cup; a through groove; a pull rope; a pressure plate; a support plate; a fixing rod; and a connecting rod.

[0016] 1. Install a turntable at one end of the support, and install an angle sensor and a dial indicator on the side of the turntable. The angle sensor detects the offset angle of the pointer in the dial indicator, eliminating the need for manual reading, thus improving detection efficiency and accuracy. Furthermore, after installation, no worker is required to constantly observe the bridge, enabling long-term monitoring of its static displacement.

[0017] 2. Install a rubber cylinder on the underside of the bracket, and a suction cup at one end of the rubber cylinder. Open a through groove at the bottom of the bracket and install a pull rope in the through groove. This eliminates the need for extensive manual labor to install the bracket on the underside of the bridge. By pulling the bracket and the interaction between the rubber cylinder and the suction cup, the bracket can be fixed to the underside of the bridge. No manual installation is required, and no additional installation frame needs to be erected. This reduces labor usage and improves installation efficiency. It can be used on the bottom of bridges over water, navigation (vehicle) bridges, and high-pier, long-span bridges, improving the applicability of inspection.

[0018] 3. Install a pressure plate on the upper side of the support plate, install a fixing rod inside the support plate, and install a connecting rod between the pressure plate and the suction cup. When fixing the bracket, the connecting rod can drive the fixing rod to fix the dial indicator, preventing the dial indicator from shaking during the test and improving the accuracy of the data detected by the dial indicator. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the overall assembly of the bridge static displacement detection device of the present invention.

[0020] Figure 2 This is a schematic diagram of the assembly cross-sectional structure of the brush and the support in a bridge static displacement detection device of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall assembly cross-sectional structure of the bridge static displacement detection device of the present invention.

[0022] Figure 4 for Figure 3 A schematic diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the assembly cross-sectional structure of the suction cup and the rubber tube in the bridge static displacement detection device of the present invention.

[0024] In the diagram: 1. Bracket; 2. Dial indicator; 3. Through groove; 4. Pull rope; 5. Plumb bob; 6. Screw hole; 7. Connecting rod; 8. Pointer; 9. Angle sensor; 10. Suction cup; 11. Glue tube; 12. Vent hole; 13. Spring; 14. Baffle; 15. Support plate; 16. Fixing rod; 17. Pressure plate; 18. Rotary groove; 19. Rotating rod; 20. Brush; 21. Heater; 22. Resistance wire; 23. Control board; 24. Battery; 25. Signal transmitter; 26. Groove; 27. Turntable. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1 to 5This invention provides a technical solution: a device for detecting the static displacement of a bridge, comprising a support 1, a turntable 27 mounted on one end of the support 1, an angle sensor 9 and a dial gauge 2 rotatably mounted on the side of the turntable 27, the dial gauge 2 corresponding to the angle sensor 9, and a plumb bob 5 mounted on the lower side of the dial gauge 2. Multiple rubber cylinders 11 are mounted on the lower side of the support 1, a suction cup 10 is mounted on one end of each rubber cylinder 11, the suction cup 10 is connected to the rubber cylinder 11, and a support plate 15 is mounted on the upper side of the turntable 27. A pressure plate 17 rotatably mounts on the upper side of the support plate 15, and a fixing rod 16 is slidably mounted inside the support plate 15, the fixing rod 16 corresponding to the dial gauge 2. A connecting rod 7 is fixedly connected between one end of the pressure plate 17 and the suction cup 10, and the fixing rod 16 is fixedly connected to the other end of the pressure plate 17.

[0027] In this embodiment, a rotating groove 18 is formed inside the turntable 27. Multiple rotating rods 19 are mounted on one side of the dial indicator 2, and the rotating rods 19 rotatably engage with the rotating groove 18. A pointer 8 is provided inside the dial indicator 2, and the input end of the angle sensor 9 is fixedly connected to the pointer 8. Multiple ventilation holes 12 are formed inside the suction cup 10, and multiple baffles 14 are installed inside the suction cup 10. One end of each baffle 14 is fixedly connected to the suction cup 10, and a spring 13 is installed between the baffle 14 and the rubber tube 11. Multiple brushes 20 are installed at the bottom of the bracket 1, and the multiple rubber tubes 11 and the suction cup 10 are all located between the multiple brushes 20. A groove 26 is formed inside the bracket 1, and the groove 26 contains... The device includes a heater 21, a control board 23, a battery 24, and a signal transmitter 25. The heater 21, control board 23, battery 24, and signal transmitter 25 are connected by wires. The output of the angle sensor 9 is connected to the control board 23 by wires. Multiple resistance wires 22 are installed on the lower side of the bracket 1. The resistance wires 22 are connected to the heater 21 by wires. The resistance wires 22 are located between multiple rubber tubes 11. The rubber tubes 11 are made of a metal material with good thermal conductivity. Multiple through slots 3 and multiple screw holes 6 are opened at the bottom of the bracket 1. Pull ropes 4 are installed in the through slots 3 and screws are installed in the screw holes 6.

[0028] Specifically, when installing the detection device on the bridge deck, simply place the bracket 1 on the bridge deck and then fix the bracket 1 to the bridge deck with screws. At this time, the suction cup 10 is squeezed, which reduces the distance between the suction cup 10 and the bracket 1, thereby causing the connecting rod 7 to slide upward relative to the bracket 1. The connecting rod 7 then causes the pressure plate 17 to rotate, and the pressure plate 17 causes one end of the fixing rod 16 to slide downward, so that the fixing rod 16 presses and fixes the dial indicator 2, preventing the dial indicator 2 from easily shaking. If the bridge shifts, it will cause the plumb bob 5 to shift, which will cause the pointer 8 of the dial indicator 2 to deviate. The angle sensor 9 detects the signal and transmits the signal to the control board 23, and then transmits the signal to the control center through the signal transmitter 25. In this way, the bridge can be monitored for deviation in real time without the need to set up a separate installation bracket, saving manpower and resources.

[0029] When installing the testing device under the bridge, fill the glue tube 11 with silicone sealant. First, wrap the pull rope 4 around the bridge bottom once, then thread the pull rope 4 into the through groove 3 of the bracket 1. Pulling the pull rope 4 will move the bracket 1. When it reaches a certain position, fix one end of the pull rope 4 and tighten the other end, so that the bracket 1 contacts the bridge bottom surface. At this time, the side with the brush 20 is facing upwards, the dial indicator 2 rotates downwards, and the plumb bob 5 remains vertically downwards. When the bracket 1 contacts the bridge bottom surface, the brush 20 can gently sweep across the bridge bottom surface, thus preventing dust from affecting adhesion. At this time, the suction cup 10 will adhere tightly to the bridge surface. The suction cup 10 will deform, causing the baffle 14 to rotate. Gaps will appear between the multiple baffles 14, reducing the air pressure inside the suction cup 10. As a result, the glass glue will enter the suction cup 10 from the glue tube 11, thus adhering to the bracket 1. At the same time as the suction cup 10 deforms, the suction cup 10 will cause the connecting rod 7 to move relative to the bracket 1. At this time, the connecting rod 7 will cause one end of the pressure plate 17 to lift up, and the other end of the pressure plate 17 will squeeze and push the fixing rod 16, thereby fixing the dial gauge 2. Then, the static displacement of the bridge can be monitored in real time.

[0030] When it is necessary to disassemble the testing device, simply activate the heater 21 to energize the resistance wire 22. The resistance wire 22 heats up, thereby heating the silicone sealant. Once the silicone sealant softens, the bracket 1 can be removed, thus enabling the disassembly of the testing device.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the static displacement of a bridge, comprising a support (1), characterized in that, One end of the bracket (1) is equipped with a turntable (27). An angle sensor (9) and a dial indicator (2) are rotatably fitted on the side of the turntable (27). The dial indicator (2) corresponds to the angle sensor (9). A plumb bob (5) is installed on the lower side of the dial indicator (2). Multiple rubber cylinders (11) are installed on the lower side of the bracket (1). A suction cup (10) is installed at one end of the rubber cylinder (11). The suction cup (10) is connected to the rubber cylinder (11). A support plate (15) is installed on the upper side of the turntable (27). A pressure plate (17) is rotatably fitted on the upper side of the support plate (15). A fixing rod (16) is slidably fitted inside the support plate (15). The fixing rod (16) corresponds to the dial indicator (2). A connecting rod (7) is fixedly connected between one end of the pressure plate (17) and the suction cup (10). The fixing rod (16) is fixedly connected to the other end of the pressure plate (17). The bracket (1) is equipped with multiple brushes (20) at its bottom, and multiple rubber tubes (11) and suction cups (10) are located between the multiple brushes (20); The bracket (1) has a groove (26) inside, and a heater (21), a control board (23), a battery (24) and a signal transmitter (25) are installed in the groove (26). The heater (21), the control board (23), the battery (24) and the signal transmitter (25) are connected by wires. Multiple resistance wires (22) are installed on the lower side of the bracket (1), and the resistance wires (22) are connected to the heater (21) by wires; The bottom of the bracket (1) is provided with multiple through slots (3) and multiple screw holes (6). The through slots (3) are equipped with pull ropes (4), and the screw holes (6) are equipped with screws.

2. The bridge static displacement detection device according to claim 1, characterized in that: The turntable (27) has a rotating groove (18) inside, and multiple rotating rods (19) are installed on one side of the dial indicator (2). The rotating rods (19) and the rotating groove (18) rotate in coordination.

3. The bridge static displacement detection device according to claim 1, characterized in that: The dial indicator (2) is equipped with a pointer (8), and the input end of the angle sensor (9) is fixedly connected to the pointer (8).

4. The bridge static displacement detection device according to claim 1, characterized in that: The suction cup (10) has multiple ventilation holes (12) and multiple baffles (14) installed inside the suction cup (10). One end of the baffle (14) is fixedly connected to the suction cup (10), and a spring (13) is installed between the baffle (14) and the rubber tube (11).

5. The bridge static displacement detection device according to claim 1, characterized in that: The output of the angle sensor (9) is connected to the control board (23) by a wire.

6. The bridge static displacement detection device according to claim 1, characterized in that: The resistance wire (22) is positioned between multiple rubber tubes (11), and the rubber tubes (11) are made of metal.

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