Structural stress monitoring device

Abstract

The utility model relates to the technical field of stress monitoring, in particular to a structure stress monitoring device, which comprises a power transmission line support tower, a lead icing power support structure stress monitoring device and a power monitoring master control center, and is characterized in that the lead icing power support structure stress monitoring device comprises a fixed seat, a distance sensor and a sag sensor; mounting screw holes for mounting are formed in the fixed seat, the monitoring frames are symmetrically mounted on the fixed seat in a T shape, the distance sensor is embedded in the inner wall of one monitoring frame, the sag sensor is located on the inner wall of the other monitoring frame, and the distance sensor and the sag sensor are oppositely arranged; the stress monitoring device for the wire icing power supporting structure is convenient to install and detect, the distance sensor and the sag sensor are integrated on the monitoring frame and used for monitoring the wire icing condition and sag change so as to further monitor the stress condition of a power transmission line supporting tower, and monitoring and early warning are carried out in time; serious accidents such as line breakage, landslide and tower falling are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of force monitoring, in particular to a structural force monitoring device. Background Art

[0002] Structural stress monitoring is a technical method that uses long-term, continuous observation and measurement of a structure to monitor its condition and performance in real time. This type of monitoring is crucial for ensuring the safety, stability, and durability of the structure. Structural stress monitoring involves the use of various sensors and monitoring equipment to conduct real-time or periodic monitoring of the stresses on the structure, and to assess the structural health through data analysis. Its primary purpose is to ensure the safety and reliability of the structure during operation, promptly identify potential safety hazards, and reduce the risk of accidents caused by structural failure.

[0003] In structural stress monitoring, deformation is the most intuitive manifestation of a structure being subjected to stress. Detection equipment technology can be used to monitor the displacement and deformation of the structure, which is particularly important for determining whether abnormal deformation has occurred in the structure.

[0004] Conductor icing is a significant issue in monitoring the stress of power support structures, particularly in extreme mountainous climates, where high-voltage transmission lines often face the daunting challenge of icing. Icing not only increases the weight of conductors but can also cause excessive mechanical stress and tension, leading to severe accidents such as line breakage, landslides, and tower collapses, posing a significant threat to the stable operation of power systems. The lack of appropriate structural stress monitoring equipment during the construction of power support structures is a major challenge. Prompt monitoring and early warning of the movement of conductor ice could effectively reduce the likelihood of serious accidents such as line breakage and landslides. Utility Model Content

[0005] The purpose of the present invention is to provide a structural force monitoring device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A structural force monitoring device includes a transmission line support tower, a conductor ice-covered power support structure force monitoring device and a power monitoring main control center. The conductor ice-covered power support structure force monitoring device includes a fixing seat, a distance sensor and a sag sensor. The fixing seat is provided with mounting screw holes for installation. A monitoring frame is symmetrically installed in a T-shape on the fixing seat. The distance sensor is embedded in the inner wall of one of the monitoring frames, and the sag sensor is located on the inner wall of the other monitoring frame. The distance sensor and the sag sensor are arranged opposite to each other.

[0008] As a preferred solution of the present invention, the transmission line support tower is provided with a support connecting seat for supporting and passing the transmission line, the fixed seat is located on the outer wall of the bracket end of the support connecting seat of the transmission line support tower at the point to be detected, the transmission line on the support connecting seat is located between the two monitoring frames, and the support connecting seat is connected to the transmission line support tower by bolts.

[0009] As a preferred solution of the present invention, the distance sensor and the sag sensor are wirelessly connected to the main control center via wireless transmission.

[0010] As a preferred solution of the present invention, a power supply component is provided on the monitoring frame, and the power supply component includes a solar panel installed on the monitoring frame and a battery wrapped on the monitoring frame inside the solar panel. The solar panel is electrically connected to the battery through a wire, and the battery wire is electrically connected to the distance sensor and the sag sensor.

[0011] As a preferred solution of the present invention, the power monitoring control center is connected to a structural stress monitoring and early warning alarm via a wire.

[0012] As a preferred solution of the present invention, it also includes an anchor stress gauge located at the bottom of the slope structure of the transmission line support tower, the anchor stress gauge is electrically connected to the battery through a wire, and the anchor stress gauge is wirelessly connected to the power monitoring control center through a wireless transmission network.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In response to the problems in the background technology, the conductor ice-covered power support structure force monitoring device of the present application is installed on the transmission line support tower by screws, which is convenient for installation and can be easily installed on the transmission line according to the detection needs;

[0015] The device for monitoring the stress of the power support structure for iced conductors consists of an integrated fixed base and monitoring frame. The monitoring frame integrates distance sensors and sag sensors to monitor the ice coverage and sag changes of the conductors, thereby further monitoring the stress of the transmission line support towers. This allows for timely monitoring and early warning, effectively reducing the occurrence of serious accidents such as line breaks, landslides, and tower collapses.

[0016] The monitoring frame is equipped with solar panels and batteries. On the one hand, they provide power to the sensors to ensure the continuous operation of the monitoring device. On the other hand, the solar panels protect the wires at the detection points from ice and ensure the accuracy of the detection results.

[0017] Anchor bolt stress gauges are installed at the base of the sloped structure of the transmission line support tower. These are connected to batteries via wires and to the central control center via a wireless transmission network. These gauges monitor stress changes in the anchor bolts and help engineers and maintenance personnel understand the stability and safety of the support towers when ice-covered conductors are pulled by gravity.

[0018] The conductor icing power support structure stress monitoring device uses a variety of sensors and wireless transmission technology to achieve comprehensive monitoring of transmission line support towers based on conductor icing detection. The power supply components composed of solar panels and batteries, as well as the early warning alarm connected to the power monitoring control center, further enhance the stability and safety of the monitoring system. The use of anchor stress gauges enables the system to monitor stress changes at the bottom of the support tower slope structure, providing additional protection for the safe operation of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of the force monitoring device of the utility model;

[0020] Figure 2 This is a side view of the connection between the transmission line support tower and the support connection base of the utility model;

[0021] Figure 3 This is the connection block diagram of the overall equipment of this utility model.

[0022] In the figure: 1. Transmission line support tower; 11. Support connector; 2. Wire icing power support structure force monitoring device; 21. Fixing base; 22. Monitoring frame; 23. Solar panel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0024] Example

[0025] Each device in this application document adopts a conventional model in the prior art, and the control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. It is common knowledge in this field and will not be described in detail here.

[0026] See also Figure 1-3The utility model provides a technical solution: a structural force monitoring device, including a transmission line support tower 1, a conductor ice-covered power support structure force monitoring device 2 and a power monitoring main control center, the conductor ice-covered power support structure force monitoring device 2 includes a fixing seat 21, a distance sensor and a sag sensor, the fixing seat 21 is provided with mounting screw holes for installation, the fixing seat 21 is symmetrically installed with a monitoring frame 22 in a T-shape, the distance sensor is embedded in the inner wall of one of the monitoring frames 22, the sag sensor is located on the inner wall of the other monitoring frame 22, the distance sensor and the sag sensor are arranged opposite to each other, and the distance sensor and the sag sensor are wirelessly transmitted to the main control center radio The transmission line support tower 1 is provided with a support connection base 11 for supporting and passing the transmission line, and the fixing base 21 is located on the outer wall of the bracket end of the support connection base 11 of the transmission line support tower 1 at the point to be detected. The transmission line on the support connection base 11 is located between the two monitoring frames 22, and the support connection base 11 is connected to the transmission line support tower 1 by bolts; it also includes an anchor stress gauge located at the bottom of the slope structure of the transmission line support tower 1, the anchor stress gauge is electrically connected to the battery through a wire, and the anchor stress gauge is wirelessly connected to the power monitoring control center through a wireless transmission network.

[0027] It should be noted that, in this embodiment, the conductor ice-covered power support structure force monitoring device 2 is mounted on the transmission line support tower 1 by screws, which is convenient for installation and can be easily installed on the transmission line according to detection needs;

[0028] The conductor ice-covered power support structure stress monitoring device 2 includes an integrally connected fixing base 21 and a monitoring frame 22. The monitoring frame 22 integrates a distance sensor and a sag sensor for monitoring the conductor ice coverage and sag changes to further monitor the stress of the transmission line support tower, conduct timely monitoring and early warning, and effectively reduce the occurrence of serious accidents such as line breakage, landslides and tower collapses.

[0029] Distance sensors and sag sensors are wirelessly connected to the main control center via wireless transmission to monitor the distance and sag changes of the conductors in real time. The monitoring data is transmitted to the monitoring center in real time via the optical fiber network. Micro-electromechanical system (MEMS) sensors are used to sense the sag status of the conductors in real time and transmit data via wireless communication technology.

[0030] Furthermore, when the conductor is covered with ice, as the thickness of the ice increases, the conductor becomes heavier and the conductor moves downward. At this time, the distance sensor detects the displacement. The sag sensor model is the FH-9006 high-voltage transmission line conductor sag online monitoring device. The sag sensor measures the vertical distance of the conductor to the ground. Through MEMS sensor technology and wireless communication technology, real-time monitoring of the sag of high-voltage transmission conductors is achieved. The distance sensor is used to measure the distance between the conductor and the monitoring point, while the sag sensor is used to measure the sag degree of the conductor. These two sensors are usually based on laser or micro-power wireless sensing technology, with the characteristics of high precision and long-distance transmission. The sag sensor monitors the parameters of the vertical distance of the lowest point of the line sag to the ground in real time, and transmits the monitoring data to the monitoring center in real time via 4G / GPRS / WIFI / OPGW optical fiber network. When the detection data sent by the distance sensor is greater than the threshold, the structural stress monitoring and early warning alarm of the monitoring center will sound an alarm, reminding the power personnel to deal with it;

[0031] Furthermore, anchor stress gauges are installed at the bottom of the sloped structure of the transmission line support tower. These are connected to batteries via wires and to the central control center via a wireless transmission network. These gauges monitor stress changes in the anchors. When the conductors are covered in ice and pulled by gravity, they help engineers and maintenance personnel understand the stability and safety of the support towers, providing timely monitoring and early warning, effectively reducing the risk of serious accidents such as line breaks, landslides, and tower collapses.

[0032] The VWR series vibrating wire anchor stress gauge operates based on the conversion of elastic deformation and vibration frequency. When stress changes within the transmission line support tower 1 under test, such as stretching, the steel sleeve connected to the anchor bolt simultaneously deforms. This deformation is transmitted to the vibrating wire through the steel sleeve, converting its stress state into a change in vibration frequency. The vibrating wire is excited by an electromagnetic coil, and the frequency signal is transmitted via a cable to a readout device, thereby determining the stress value on the transmission line support tower 1. The signal from the anchor bolt stress gauge, derived via the cable, can be sent to the power monitoring control center via a wireless transmission network. This wireless transmission method facilitates remote monitoring and data analysis, making it particularly suitable for remote locations or locations where direct cabling is difficult. The monitoring center receives data from the anchor bolt stress gauge in real time and processes and displays the data using analysis software. When the monitored stress value exceeds a preset threshold, the early warning system issues an alarm, prompting engineers and maintenance personnel to conduct prompt inspection and action. Timely monitoring and early warning effectively reduce the risk of serious accidents such as line breaks, landslides, and tower collapses. By monitoring anchor bolt stress changes in real time, engineers and maintenance personnel can gain a comprehensive understanding of the stability and safety of the transmission line support tower. This monitoring method is of great significance in preventing accidents and extending the life of equipment;

[0033] The conductor icing power support structure stress monitoring device 2 realizes comprehensive monitoring of the transmission line support tower based on conductor icing detection through multiple sensors and wireless transmission technology. The power supply components composed of solar panels 23 and batteries, as well as the early warning alarm connected to the power monitoring control center, further enhance the stability and safety of the monitoring system. The use of anchor stress gauges enables the system to monitor the stress changes at the bottom of the support tower slope structure, providing additional protection for the safe operation of the transmission line.

[0034] See also Figure 1 and 3 A power supply component is provided on the monitoring frame 22, and the power supply component includes a solar panel 23 installed on the monitoring frame 22 and a battery wrapped on the monitoring frame 22 inside the solar panel 23. The solar panel 23 is electrically connected to the battery through a wire, and the battery wire is electrically connected to the distance sensor and the sag sensor.

[0035] It should be noted that, in this embodiment, a solar panel 23 and a battery are provided on the monitoring frame 22. On the one hand, they provide power to the sensor to ensure the continuous operation of the monitoring device. On the other hand, the solar panel 23 protects the wires at the detection point from being covered with ice, thereby ensuring the accuracy of the detection result.

[0036] The solar panel 23 ensures the stable operation of monitoring equipment such as distance sensors and sag sensors by providing a continuous power supply. These sensors require continuous power to monitor the status of the transmission line in real time, such as the displacement and sag changes of the conductors. When the conductors are covered with ice, as the thickness of the ice increases, the weight of the conductors increases, and the conductors move downward. At this time, the distance sensors detect the displacement.

[0037] Solar panels 23 also help prevent icing on conductors, preventing ice buildup that could affect the operation of distance sensors. Near the installation location, the solar panels' heat-absorbing and insulating properties lower the surface temperature of the conductors, reducing frost formation. This passive anti-icing measure is crucial for maintaining good conductor conductivity and mitigating power outages caused by icing.

[0038] The working process of this utility model:

[0039] When in use, the fixing base 21 of the monitoring device is installed on the point to be detected of the transmission line support tower 1. The solar panel 23 and the battery combination provide a continuous power supply for the monitoring device to ensure that the sensors and other equipment can operate stably. The distance sensor and the sag sensor are respectively embedded on the inner wall of the monitoring frame 22 and arranged opposite to each other to monitor the displacement and sag changes of the conductor. The anchor stress gauge is located at the bottom of the slope structure of the support tower and is connected to the battery 23 through a wire to monitor the stress changes of the anchor. The data collected by the sensor and the anchor stress gauge are sent to the power monitoring control center through a wireless transmission network. After receiving the data, the control center processes and displays the data through analysis software. When the monitoring data exceeds the preset threshold, the early warning system will sound an alarm, conduct timely monitoring and early warning, effectively reduce the occurrence of serious accidents such as line breakage, landslide and tower collapse, and remind engineers and operation and maintenance personnel to check and deal with them in time.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A structural stress monitoring device, comprising a transmission line support tower (1), a conductor ice-covered power support structure stress monitoring device (2) and a power monitoring control center, characterized in that: A conductor ice-covered electric support structure force monitoring device (2) comprises a fixing seat (21), a distance sensor and a sag sensor, wherein the fixing seat (21) is provided with a mounting screw hole for mounting, and a monitoring frame (22) is symmetrically mounted in a T-shape on the fixing seat (21), wherein the distance sensor is embedded in the inner wall of one of the monitoring frames (22), and the sag sensor is located on the inner wall of the other monitoring frame (22), and the distance sensor and the sag sensor are arranged opposite to each other.

2. A structural force monitoring device according to claim 1, characterized in that: The transmission line support tower (1) is provided with a support connection seat (11) for supporting and passing the transmission line; the fixing seat (21) is located on the outer wall of the bracket end of the support connection seat (11) of the transmission line support tower (1) at a point to be detected; the transmission line on the support connection seat (11) is located between two monitoring frames (22); and the support connection seat (11) is connected to the transmission line support tower (1) by bolts.

3. The structural force monitoring device according to claim 1, characterized in that: The distance sensor and the sag sensor are wirelessly connected to the main control center via wireless transmission.

4. The structural force monitoring device according to claim 1, characterized in that: The monitoring frame (22) is provided with a power supply component, the power supply component comprising a solar panel (23) mounted on the monitoring frame (22) and a battery wrapped on the monitoring frame (22) inside the solar panel (23), the solar panel (23) being electrically connected to the battery via a wire, and the battery wire being electrically connected to the distance sensor and the sag sensor.

5. The structural force monitoring device according to claim 1, characterized in that: The electric power monitoring control center is connected to a structural stress monitoring early warning alarm through a wire.

6. The structural force monitoring device according to claim 4, characterized in that: It also includes an anchor stress meter located at the bottom of the slope structure of the transmission line support tower (1), the anchor stress meter being electrically connected to the battery via a wire, and the anchor stress meter being wirelessly connected to the power monitoring control center via a wireless transmission network.

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