Bridge structure health monitoring device

Abstract

The utility model discloses a bridge structure health monitoring device, which relates to the technical field of bridge monitoring, and comprises a mounting mechanism and a monitoring assembly arranged on the mounting mechanism, the mounting mechanism comprises a main pipe used for assembling the monitoring assembly and an auxiliary rod inserted at one end of the main pipe and capable of moving along the length direction of the main pipe, the main pipe is provided with an elastic piece used for enabling the auxiliary rod to have the trend of moving outwards relative to the main pipe, the end, located outside the main pipe, of the auxiliary rod is provided with an abutting plate through a universal connecting piece, and multi-angle rotation between the abutting plate and the auxiliary rod is achieved through the universal connecting piece. The main pipe and the auxiliary rod capable of moving in the length direction of the main pipe are arranged in the mounting mechanism, the abutting plates and the auxiliary rod are connected through the universal connecting pieces, flexible abutting mounting between the two abutting plates and the bridge is achieved, and then mounting of the monitoring assembly at the corresponding position of the bridge is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bridge monitoring technology, specifically to a bridge structural health monitoring device. Background Technology

[0002] Currently, bridge health monitoring systems are mainly based on sensor networks and finite element model analysis. While these two technologies provide important evidence for bridge condition assessment, they exhibit significant limitations when facing complex and ever-changing bridge structural damage identification, especially scenarios involving multi-level and hidden damage. They often struggle to balance real-time monitoring with high accuracy, posing a challenge to the timely detection and early warning of potential structural safety hazards.

[0003] To improve monitoring efficiency and accuracy, the industry has experimented with installing specialized bridge structure monitoring instruments at bridge bearings. These instruments typically involve drilling holes in the bearing structure and securing them with expansion bolts. While this method achieves a degree of stable installation and ensures monitoring, it also introduces a series of significant problems. The primary issue is that the drilling process inevitably damages the structural integrity of the bridge bearings, potentially weakening their load-bearing capacity and posing a long-term threat to the overall safety of the bridge. Secondly, drilling installation is not only cumbersome and time-consuming, reducing installation efficiency, but also makes disassembly extremely inconvenient during subsequent equipment maintenance or replacement due to the complexity of the bolt-fixed structure, increasing maintenance and time costs. Therefore, exploring more efficient and non-destructive installation and monitoring technologies is crucial to improving the effectiveness of bridge health monitoring. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a bridge structure health monitoring device. This device, through the telescopic structure between the main rod and the auxiliary rod and the universal connection between the auxiliary rod and the contact plate, allows the monitoring components to be quickly and easily installed at the corresponding position on the bridge by relying on the installation mechanism, without the need for cumbersome operations such as drilling, and is flexible and easy to operate.

[0005] To solve the above problems, this utility model provides the following technical solution:

[0006] A bridge structural health monitoring device includes an installation mechanism and a monitoring component mounted on the installation mechanism. The installation mechanism includes a main pipe for assembling the monitoring component and a secondary rod inserted into one end of the main pipe and movable along the length of the main pipe. The main pipe is provided with an elastic element for giving the secondary rod an outward tendency relative to the main pipe. The end of the secondary rod located outside the main pipe is fitted with an abutment plate via a universal connector. The abutment plate and the secondary rod can rotate at multiple angles via the universal connector. The secondary rod, the universal connector, and the abutment plate together form a support member, and the support member is configured in two sets and evenly distributed at both ends of the main pipe.

[0007] As a further embodiment of this utility model: the universal connector includes a ball at the end of the auxiliary rod, and the contact plate is provided with a ball seat for accommodating the ball, and the ball seat is provided with a cover for restricting the movement of the ball within it.

[0008] As a further embodiment of this utility model: a screw is fixedly provided on the outer side of the sphere along its radial direction, and the screw is threadedly installed at the end of the auxiliary rod.

[0009] As a further embodiment of this utility model: the elastic element is disposed inside the main tube, and the elastic element is a return spring, with both ends of the return spring being fixedly connected to the end of the auxiliary rod and the inner wall of the main tube, respectively.

[0010] As a further embodiment of this utility model: a positioning rod is fixedly provided on the main pipe along its length direction, and the monitoring component is detachably installed on the positioning rod.

[0011] As a further embodiment of this utility model: the positioning rod has multiple positioning holes along its own length direction, and a panel is installed on the positioning hole by bolts. The monitoring component is fixedly installed on the panel to realize its detachable connection on the positioning rod.

[0012] As a further embodiment of this utility model: the panel is provided with a cover for housing the monitoring components.

[0013] As a further embodiment of this utility model: a portion of the cover is arc-shaped, forming an arc-shaped part, and a swing arm is rotatably provided on the arc-shaped part. The rotation axis of the swing arm coincides with the structural axis of the arc-shaped part, and the swing arm and the arc-shaped part are in a close fit.

[0014] As a further embodiment of this utility model: a cleaning cloth is provided on the side of the swing arm facing the arc-shaped part, and the cleaning cloth is in a close fit with the arc-shaped part.

[0015] As a further embodiment of this utility model: a drive motor is fixedly installed on the cover, and the output shaft of the drive motor is connected to one end of the swing arm via a transmission connection.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a main rod and a secondary rod that can move along the length of the main rod in the installation mechanism, and by connecting the contact plate and the secondary rod with a universal connector, flexible contact installation between the two contact plates and the bridge is achieved, thereby enabling the installation of the monitoring component at the corresponding position on the bridge. Compared with the existing technology that requires drilling holes in the bridge, the installation method of this application is simple and flexible and will not cause damage to the bridge.

[0018] 2. By arranging the elastic element inside the main tube and using a return spring, this design not only simplifies the structure of the device, but also allows the auxiliary rod to move flexibly under external force and quickly return to its original position after the external force disappears, thus improving the accuracy and sensitivity of monitoring.

[0019] 3. The positioning rods fixedly installed along the length of the main pipe provide a stable installation platform for the monitoring components, and the detachable design of the monitoring components makes the device more convenient for maintenance and upgrades;

[0020] 4. The panel design with bolts for mounting on the positioning holes not only enables the detachable connection of the monitoring components to the positioning rod, but also facilitates the replacement and upgrading of the panel and monitoring components, improving the flexibility and applicability of the device.

[0021] 5. The cover design on the panel effectively protects the monitoring components from interference and damage from the external environment, improving the reliability and service life of the device;

[0022] 6. The swing arm design on the cover allows the swing arm to periodically clean the outside of the cover, facilitating the monitoring of the normal operation of the components;

[0023] 7. The cleaning cloth design on the swing arm can effectively clean dust and dirt on the arc-shaped part, ensuring the accuracy and sensitivity of the monitoring components, and also extending the service life of the device.

[0024] 8. The drive motor design fixed on the cover provides a stable power source for the swing arm, enabling the cleaning cloth to perform cleaning work automatically, thus improving the automation level and cleaning efficiency of the device. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 This is an exploded structural diagram of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the monitoring component and panel in this utility model;

[0029] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover in this utility model;

[0030] Figure 5 This is a three-dimensional structural diagram of the swing arm in this utility model;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the main tube in this utility model;

[0032] Figure 7 This is a cross-sectional view of the contact plate and ball seat in this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of this utility model installed on a bridge.

[0034] In the diagram: 1. Installation mechanism; 101. Main rod; 102. Secondary rod; 2. Monitoring component; 3. Elastic element; 4. Universal connector; 401. Ball; 402. Ball seat; 403. Cover; 404. Screw; 5. Contact plate; 6. Positioning rod; 7. Positioning hole; 8. Panel; 9. Cover; 901. Arc-shaped part; 902. Swing arm; 903. Cleaning cloth; 10. Drive motor; a. Bridge. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] like Figures 1-8 As shown, a bridge structure health monitoring device includes an installation mechanism 1 for installation at a corresponding position on bridge a and a monitoring component 2 disposed on the installation mechanism 1. In use, the installation mechanism 1 is installed at the corresponding position on bridge a, and then the angle or position of the monitoring component 2 is adjusted until the monitoring position facing the monitoring component 2 meets the requirements, thus completing the entire assembly work.

[0037] It should be noted that the monitoring component 2 in this application is a conventional technical means in the prior art, such as a surveillance camera or a bridge structure monitoring instrument. This application is not limited to the type of monitoring component 2. The installation mechanism 1 in this application is used to provide an installation carrier for the monitoring component 2, which is used to place the monitoring component 2 at the corresponding position on bridge a. The two do not interfere with each other. When the monitoring component 2 is set as a bridge structure monitoring instrument, in the prior art, the bridge structure monitoring instrument includes an intelligent sensor, a data acquisition and processing module, and a wireless transmission module. The intelligent sensors include high-sensitivity accelerometers, strain gauges, and fiber Bragg grating sensors, used to collect dynamic response data of bridge a, such as vibration, deformation, and strain. The data acquisition and processing module has a built-in microprocessor, such as an STM32 or ESP32, which can process the data collected by the sensors in real time and perform preliminary analysis and preprocessing through edge computing technology. The wireless transmission module supports Wi-Fi / LoRa wireless communication to transmit the collected data to the central monitoring system for remote real-time monitoring. A deep learning network model is embedded in the central monitoring system to analyze and process the sensor data. With the support of a damage database, the model can identify different types of damage and risk scenarios, including risks such as overload, off-center loading, and settlement. Through multi-sensor data fusion technology, combined with threshold detection and abnormal pattern recognition algorithms, multi-level assessment and alarm of the health status of bridge a can be achieved.

[0038] like Figures 1-2 As shown, to enable the installation mechanism 1 of this application to be quickly and easily installed at the corresponding position on bridge a, the installation mechanism 1 includes a main pipe 101 for assembling the monitoring component 2 and a secondary rod 102 inserted at one end of the main pipe 101 and movable along the length of the main pipe 101. The sliding design of the secondary rod 102 on the main pipe 101 makes the secondary rod 102 and the main pipe 101 form a telescopic structure. At the same time, an abutment plate 5 is installed at the end of the secondary rod 102 outside the main pipe 101 via a universal connector 4. The design of this universal connector 4 allows the abutment plate 5 and the secondary rod 102 to rotate at multiple angles via the universal connector 4. Thus, compared to the main pipe 101, the abutment plate 5 can not only move closer or further away, but can also rotate at multiple angles within a certain range. In the above design, the secondary rod 102, the universal connector 4, and the abutment plate 5 together form a support member, and the support member is set in two sets and evenly distributed at both ends of the main pipe 101.

[0039] Based on the two sets of support components, firstly, the two auxiliary rods 102 in the installation mechanism 1 are slid closer to each other on the main pipe 101, shortening the distance between the two contact plates 5, thus reducing the overall volume of the installation mechanism 1. Then, the entire assembly in this state is placed within the corresponding installation gap of the bridge a. Next, the two auxiliary rods 102 are driven away from each other on the main pipe 101 until both contact plates 5 are in contact with the bridge a, maintaining the contact lock state between the two contact plates 5 and the bridge a. This completes the assembly of the monitoring component 2 on the bridge a. Subsequently, only the corresponding monitoring angle or position needs to be adjusted according to the type of monitoring component 2. This installed state can be... Figure 8 To represent it.

[0040] To achieve the locked state between the two contact plates 5 and the bridge a as described above, this application can be implemented using the following two designs:

[0041] (1) As Figure 3 As shown, an elastic element 3 is provided on the main pipe 101 to give the auxiliary rod 102 a tendency to move outward relative to the main pipe 101. That is, during the process of driving the two auxiliary rods 102 to slide closer to each other on the main pipe 101, the elastic element 3 is compressed. Then, when the shortened installation mechanism 1 is placed in the corresponding installation gap of the bridge a, under the elastic action of the elastic element 3, the abutment plate 5 is pushed away from the main pipe 101 until the main pipe 101 and the bridge a are in contact. At this time, the elastic element 3 still retains the elastic action that drives the auxiliary rod 102 to move outward relative to the main pipe 101. Under this residual elastic action, the abutment plate 5 will be tightly attached to the bridge a, realizing the abutment locking. Preferably, the elastic element 3 is set as a return spring, which is located inside the main pipe 101. The two ends of the return spring are fixedly connected to the end of the auxiliary rod 102 and the inner wall of the main pipe 101, respectively.

[0042] (2) Locking bolts are provided at both ends of the main pipe 101. One end of the locking bolt can penetrate into the main pipe 101. When the auxiliary rod 102 moves the contact plate 5 to the state of contact with the bridge a, the locking bolt can be driven to tighten, so that one end of the locking bolt penetrates into the main pipe 101 and contacts the auxiliary rod 102, thereby locking the position of the auxiliary rod 102, that is, the position of the contact plate 5 will be locked.

[0043] like Figures 1-2 and Figure 7As shown, the universal joint 4 described above serves only to connect the contact plate 5 and the auxiliary rod 102 in a universal orientation. The universal joint 4 is a conventional technology in the prior art, such as a spherical universal joint, universal shaft, universal joint, universal coupling, and universal static seal ball head. When the universal joint 4 is configured as a spherical universal joint, it includes a ball 401 located at the end of the auxiliary rod 102, and the contact plate 5 has a ball seat 402 for accommodating the ball 401. The ball seat 402 has a cap 403 for restricting the movement of the ball 401 within it. To ensure a good connection between the ball 401 and the end of the auxiliary rod 102, a screw 404 is fixed radially around the outside of the ball 401, and the screw 404 is threaded onto the end of the auxiliary rod 102. This configuration can be achieved by... Figure 2 To represent it.

[0044] like Figure 6 As shown, in order to facilitate the position adjustment of the monitoring component 2 on the main pipe 101, this application provides a positioning rod 6 fixedly installed on the main pipe 101 along its length direction. The positioning rod 6 has multiple positioning holes 7 along its own length direction. A panel 8 is installed on the positioning hole 7 by bolts. The monitoring component 2 is fixedly installed on the panel 8. The panel 8 can be assembled on the positioning hole 7 at different positions, so as to realize the detachable connection and position adjustment of the monitoring component 2 on the positioning rod 6.

[0045] like Figure 1 and Figure 4 As shown, furthermore, to prevent interference or damage to the monitoring component 2 from complex external environments, this application provides a cover 9 on the panel 8 to protect the monitoring component 2 and extend its service life. Simultaneously, when the monitoring component 2 is used as a component such as a surveillance camera, this application also provides a cleaning mechanism to periodically clean the exterior of the cover 9 to ensure the camera functions properly. Figures 4-5As shown, this article uses a cover 9 with an arc-shaped portion as an example for explanation. A portion of the cover 9 is arc-shaped, forming an arc-shaped section 901. A swing arm 902 is rotatably mounted on the arc-shaped section 901, with its rotation axis coinciding with the structural axis of the arc-shaped section 901. The swing arm 902 and the arc-shaped section 901 are in a close-fitting state, thus adapting the rotation path of the swing arm 902 to the arc-shaped structure of the arc-shaped section 901, achieving good cleaning. A drive motor 10 is fixedly mounted on the cover 9, and the output shaft of the drive motor 10 is connected to one end of the swing arm 902. To improve the cleaning effect, a cleaning cloth 903 is provided on the side of the swing arm 902 facing the arc-shaped section 901, and the cleaning cloth 903 is in a close-fitting state with the arc-shaped section 901. It should be noted that this article uses the cover 9 with an arc-shaped portion as an example for explanation. In actual use, the swing arm 902 can be set to match different shapes of cover 9.

[0046] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A bridge structural health monitoring device, characterized in that, The system includes an installation mechanism (1) and a monitoring component (2) mounted on the installation mechanism (1). The installation mechanism (1) includes a main tube (101) for assembling the monitoring component (2) and a secondary rod (102) inserted into one end of the main tube (101) and movable along the length of the main tube (101). The main tube (101) is provided with an elastic element (3) for making the secondary rod (102) have an outward tendency relative to the main tube (101). The end of the secondary rod (102) located outside the main tube (101) is equipped with an abutment plate (5) through a universal connector (4). The abutment plate (5) and the secondary rod (102) can rotate at multiple angles by means of the universal connector (4). The secondary rod (102), the universal connector (4) and the abutment plate (5) together form a support member, and the support member is set in two sets and evenly distributed at both ends of the main tube (101).

2. The bridge structural health monitoring device according to claim 1, characterized in that, The universal connector (4) includes a ball (401) located at the end of the auxiliary rod (102), and the contact plate (5) is provided with a ball seat (402) for accommodating the ball (401), and the ball seat (402) is provided with a cap (403) for restricting the ball (401) to move within it.

3. The bridge structural health monitoring device according to claim 2, characterized in that, A screw (404) is fixedly provided on the outside of the sphere (401) along its radial direction, and the screw (404) is threadedly installed at the end of the auxiliary rod (102).

4. A bridge structural health monitoring device according to any one of claims 1-3, characterized in that, The elastic element (3) is disposed inside the main tube (101), and the elastic element (3) is a return spring. The two ends of the return spring are fixedly connected to the end of the auxiliary rod (102) and the inner wall of the main tube (101), respectively.

5. A bridge structural health monitoring device according to any one of claims 1-3, characterized in that, A positioning rod (6) is fixedly provided on the main tube (101) along its length direction, and the monitoring component (2) is detachably installed on the positioning rod (6).

6. A bridge structural health monitoring device according to claim 5, characterized in that, The positioning rod (6) has multiple positioning holes (7) along its length. A panel (8) is installed on the positioning hole (7) by bolts. The monitoring component (2) is fixedly installed on the panel (8) to achieve its detachable connection on the positioning rod (6).

7. A bridge structural health monitoring device according to claim 6, characterized in that, The panel (8) is provided with a cover (9) for covering the monitoring component (2).

8. A bridge structural health monitoring device according to claim 7, characterized in that, A portion of the cover (9) is arc-shaped, forming an arc-shaped part (901). A swing arm (902) is rotatably mounted on the arc-shaped part (901). The axis of rotation of the swing arm (902) coincides with the structural axis of the arc-shaped part (901), and the swing arm (902) and the arc-shaped part (901) are in a close fit.

9. A bridge structural health monitoring device according to claim 8, characterized in that, A cleaning cloth (903) is provided on the side of the swing arm (902) facing the arc-shaped part (901), and the cleaning cloth (903) is in a close fit with the arc-shaped part (901).

10. A bridge structural health monitoring device according to claim 8, characterized in that, A drive motor (10) is fixedly installed on the cover (9), and the output shaft of the drive motor (10) is connected to one end of the swing arm (902) for transmission.

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