High-voltage overhead line cable tension real-time monitoring device
By fixing the cable position using a combination of limiting posts and a groove, the problem of cable separation and damage from the tension sensor is solved, thus achieving stability and durability of the cable tension monitoring device.
Patent Information
- Application Number
- CN202511567800.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-03-06
AI Technical Summary
During use, existing high-voltage overhead cable tension real-time monitoring devices are prone to cable separation from tension sensors and lack protection, making them susceptible to damage from wind, tree branches, and birds.
A structure including a housing, a limiting post, a groove, and a magnetic strip is designed. The combination of the limiting post and the groove fixes the position of the cable and prevents the cable from separating from the tension sensor. The magnetic strip initially fixes the groove, and the bolts further fix it to protect the tension sensor from damage.
It effectively prevents the cable from separating from the tension sensor, protects the tension sensor from wind, tree branches and birds, and ensures the stable operation of the monitoring device.
Smart Images
Figure CN121612467A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of monitoring devices, and in particular relates to a real-time monitoring device for the tension of high-voltage overhead line cables. Background Technology
[0002] In power systems, power transmission via high-voltage overhead transmission lines is crucial, and their safe and stable operation is paramount. Cable tension is one of the key factors affecting the safety of line installation; excessive tension leads to insufficient cable sag, posing a risk of breakage, while insufficient tension results in excessive sag, potentially causing discharge to the ground or across objects. Therefore, regular inspections by maintenance personnel are conducted to check cable tension to ensure it remains within the normal range and to guarantee safe cable operation.
[0003] When using existing high-voltage overhead line cable tension real-time monitoring devices, the device is installed on the high-voltage frame. After installation, the cable is wound around the tension sensor, which can monitor the cable tension in real time. At the same time, the tension information monitored by the tension sensor is transmitted to the back-end via antenna or wireless signal, so that the back-end staff can directly understand the cable tension status based on the monitoring information.
[0004] However, existing high-voltage overhead cable tension real-time monitoring devices do not restrict the position of the cable wrapped around the tension sensor during use. When the wind blows, the cable will sway back and forth in the wind, which can easily cause the cable to separate from the tension sensor, making it impossible for the tension sensor to continue monitoring the cable tension. At the same time, existing high-voltage overhead cable tension real-time monitoring devices do not protect the cable. In windy weather, branches and other objects blown by the wind can easily collide directly with the tension sensor, causing damage. In daily life, many birds will perch on high places to rest, such as high-voltage power lines, cables, utility poles, and rooftops. Therefore, when the monitoring device is in use, birds may also perch on the device to rest. When birds rest, they may directly stand on the tension sensor and damage it with their beaks. Summary of the Invention
[0005] The purpose of this invention is to provide a real-time monitoring device for the tension of high-voltage overhead power line cables, preventing the cable from separating from the tension sensor and protecting the tension sensor.
[0006] The high-voltage overhead line cable tension real-time monitoring device includes a housing. A connecting rod is horizontally installed on the front outer wall of the housing. A support plate is vertically installed on the left side wall at the front end of the connecting rod. First limiting posts are horizontally installed at both ends of the upper left side wall of the support plate. A tension sensor for monitoring cable tension is installed at the center of the front side wall of the support plate. A second limiting post is horizontally installed at the lower end of the left side wall of the support plate. A groove with an opening to the right is provided on the left side of the support plate. A slot for inserting the side wall of the groove is provided on the left side wall of the support plate. A magnetic strip for adsorbing and fixing the groove is installed at the bottom of the slot. A through groove is provided on both the front and rear side walls of the groove, but there is no right side wall. The through groove is used for the cable to pass through the groove. An adjustment component for adjusting the position of the groove is installed on the second limiting post. The groove is fixed to the first and second limiting posts by bolts.
[0007] Furthermore, a groove is provided on the left side wall of the second limiting post. The adjusting component includes a slider installed in the groove and slidingly engaging with it. The slider and the groove are in a rotatable engagement. A limiting block is installed on the inner side wall of the groove opening to prevent the slider from sliding out of the groove. A telescopic rod is horizontally installed on the left side wall of the slider. The left end of the telescopic rod extends out of the groove and is fixedly connected to the upper end of the bottom of the groove.
[0008] Furthermore, the left half of the upper sidewall of the tank is provided with a first heat dissipation vent that communicates with the inside and outside. A first dustproof net and an electric grid are installed inside the first heat dissipation vent, with the electric grid located below the first dustproof net.
[0009] Furthermore, the housing is equipped with a controller and a processing module for processing transmitted information. The tension sensor and the controller are respectively connected to the processing module. The controller is also connected to a wireless communication module for transmitting information. The controller is used to receive and process the information monitored by the tension sensor.
[0010] Furthermore, the processing module includes a signal amplifier for amplifying the signal and a filter for filtering the signal, both installed inside the housing. The tension sensor is communicatively connected to the signal amplifier, the signal amplifier is communicatively connected to the filter, and the filter is communicatively connected to the controller.
[0011] Furthermore, a battery for power supply is installed inside the box, and a solar panel for charging the battery is installed on the top of the box.
[0012] Furthermore, a door opening is provided on the front side wall of the enclosure, and a protective door for sealing the door opening is hinged inside the door opening. A second heat dissipation vent for heat dissipation inside the enclosure is provided on the protective door, and a second dustproof net is installed inside the second heat dissipation vent.
[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention involves routing the cable around the first limiting post, allowing it to fit against the tension sensor. This enables the tension sensor to monitor the cable's tension. After the cable is positioned correctly, the groove is rotated, inserting the sidewall of the groove opening into the slot. Upon insertion, a magnetic strip attracts the groove, initially securing it. This eliminates the need for workers to hold the groove, freeing their hands and allowing for further tooling to secure the groove. Simultaneously, the through-slots on the groove press the cable against the support plate, restricting its movement and preventing lateral movement, thus preventing separation of the cable from the tension sensor. Finally, bolts secure the groove to the first and second limiting posts, further fixing its position. This groove protects the tension sensor from collisions with birds or floating objects, preventing damage. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 for Figure 1 Enlarged structural diagram at point B; Figure 4 for Figure 1 A schematic diagram of the front structure; Figure 5 for Figure 1 The structural diagram on the left; Figure 6 for Figure 5 A structural diagram showing the removal of the protective door; Figure 7 This is a first usage diagram of the present invention; Figure 8 This is a second usage state diagram of the present invention; Figure 9 for Figure 8 The structural diagram on the right; Figure 10 for Figure 9 Enlarged structural diagram at point F; Figure 11 This is a flowchart of the present invention; The components in the diagram are named as follows: 1. Box body; 2. First limiting post; 3. Tension sensor; 4. Tank; 5. Magnetic strip; 6. Connecting rod; 7. Support plate; 8. Solar panel; 9. Second limiting post; 10. Slider; 11. Limiting block; 12. Telescopic rod; 13. First dustproof net; 14. Electric grid; 15. Protective door; 16. Second dustproof net; 17. Battery; 18. Loading plate; 19. Controller; 20. Filter; 21. Signal amplifier; 22. Wireless communication module; 23. Cable; 24. Bolt. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Example 1
[0016] This embodiment describes a real-time monitoring device for the tension of high-voltage overhead power line cables, comprising a housing 1. A connecting rod 6 is horizontally installed on the front outer wall of the housing 1, and a support plate 7 is vertically installed on the left side wall at the front end of the connecting rod 6. Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the rear end of the connecting rod 6 is installed on the front outer side wall of the housing 1, and the center of the rear side wall of the support plate 7 is installed on the front side wall of the left end of the connecting rod 6; in actual application, the support plate 7 is made of insulating material.
[0017] First limiting posts 2 are horizontally installed at both the front and rear ends of the upper left side wall of the support plate 7. A tension sensor 3 for monitoring the tension of the cable 23 is installed at the center of the front side wall of the support plate 7. A second limiting post 9 is horizontally installed at the lower end of the left side wall of the support plate 7. Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the rear end of the first limiting post 2 is installed on the upper end of the front side wall of the support plate 7 and is distributed in a front-to-back manner. The second limiting post 9 is installed at the center of the lower end of the left side wall of the support plate 7, and there is a gap between the second limiting post 9 and the tension sensor 3.
[0018] In practical applications, both the first limiting post 2 and the second limiting post 9 are made of plastic or other insulating materials.
[0019] In practical applications, the tension sensor 3 is an existing technology and can be the ABB PFTL101BER-5.0kN model.
[0020] The left side of the support plate 7 has a groove 4 with an opening facing right, and the left side wall of the support plate 7 has a slot for insertion into the side wall of the groove 4, such as... Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the first limiting post 2, the tension sensor 3, and the second limiting post 9 are all located inside the slot. Thus, when the side wall of the slot 4 is inserted into the slot, the housing 1, the tension sensor 3, and the second limiting post 9 are all located inside the slot 4. In actual application, only the side wall at the opening of the slot 4 is inserted into the slot. When the side wall of the slot 4 is inserted into the slot, the side wall of the slot 4 fits against the inner side wall of the slot, and the side wall of the slot 4 slides left and right with the slot, thereby restricting the position of the slot 4 and preventing the slot 4 from moving when it is fixed by the bolt 24.
[0021] In practical applications, the tank 4 is made of an alloy that can be attracted by a magnet, and the surface of the tank 4 is treated with hard anodizing or ceramic coating to make the surface of the tank 4 have insulating ability. Thus, when the tank 4 comes into contact with the cable 23, the surface of the tank 4 is not conductive, which greatly reduces the danger to workers when fixing the tank 4.
[0022] The bottom of the slot is fitted with a magnetic strip 5 for adsorbing and fixing the slot body 4, such as... Figure 1 and Figure 3 As shown, the magnetic strip 5 is installed at the bottom of the slot, and the side wall of the magnetic strip 5 is in contact with the inner side wall of the slot. In actual application, when the side wall of the slot 4 is inserted into the slot, the magnetic strip 5 attracts and fixes the slot 4, and the slot 4 is initially fixed by the slot 4. It does not require the staff to hold the slot 4 with their hands to restrict the position of the slot 4, thus effectively freeing the staff's hands and allowing the staff to fix the slot 4 more conveniently with their hands.
[0023] The front and rear side walls of the trough 4 are both provided with through slots that connect the front and rear sides, but there is no through slot on the right side wall. These through slots are used for the cable 23 to pass through the trough 4. Figure 1 and Figure 4 As shown, the through groove is opened at the lower end of the front and rear side walls of the groove body 4, and the left inner side wall of the through groove has an arc surface structure, so that the left inner side wall of the through groove can better fit with the surface of the cable 23, and can better restrict the position of the cable 23.
[0024] In practical applications, such as Figure 9 and Figure 10As shown, after rotating the groove 4 and inserting the side wall of the groove 4 into the slot, the through groove just presses the cable 23 onto the left side wall of the support plate 7. At this time, the cable 23 slides back and forth with the through groove and the support plate 7, thereby restricting the position of the cable 23 through the through groove. When the cable 23 shakes, the cable 23 inside the groove 4 can only move back and forth, but cannot move left and right.
[0025] To further explain, such as Figure 1 , Figure 2 and Figure 4 As shown, a groove is provided on the left side wall of the second limiting post 9, and a slider 10 is installed in the groove in a left-right sliding engagement with it. The slider 10 is in a rotational engagement with the groove. A limiting block 11 is installed on the inner side wall of the groove opening to prevent the slider 10 from sliding out of the groove. A telescopic rod 12 is horizontally installed on the left side wall of the slider 10. The left end of the telescopic rod 12 protrudes from the groove and is fixedly connected to the upper end of the bottom of the groove 4. This paragraph as a whole constitutes an adjustment component for adjusting the position of the groove 4.
[0026] like Figure 1 and Figure 2 As shown, the sidewall of the slider 10 fits against the inner sidewall of the groove to prevent the slider 10 from shaking during sliding and rotation; there are two limiting blocks 11, one installed on the upper inner sidewall of the groove and the other installed on the lower inner sidewall of the groove. The telescopic rod 12 passes through the space between the two limiting blocks 11 and exits the groove. The telescopic rod 12 and the limiting blocks 11 slide left and right in cooperation.
[0027] like Figure 1 and Figure 2 As shown, the right end of the telescopic rod 12 is installed on the left side wall of the slider 10, and the right end of the telescopic rod 12 is installed on the bottom of the groove 4.
[0028] In practical applications, the internal space of the groove is cylindrical, and the slider 10 is cylindrical, which allows the slider 10 to rotate better within the groove.
[0029] In practical applications, because the telescopic rod 12 is a telescopic structure and the slider 10 is in sliding engagement with the groove, when the operator pulls the groove 4 out of the slot, the groove 4 can be moved away from the housing 1, the tension sensor 3, and the second limiting post 9. Furthermore, the groove 4 can be directly suspended by the telescopic rod 12, so the operator does not need to hold the groove 4 in their hand, thus avoiding interference with subsequent operations. Figure 1 , Figure 2 and Figure 4 As shown; simultaneously, because the slider 10 and the groove are in a rotatable engagement, the operator can rotate the groove 4, ensuring that the groove 4 does not obstruct the first limiting post 2 and the tension sensor 3, thus facilitating the installation of the cable 23. Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown.
[0030] In practical applications, the adjustment component can consist of a telescopic rod and a bearing. The telescopic rod is horizontally installed at the bottom of the groove, and the telescopic rod and the groove are in a sliding fit. One end of the telescopic rod passes through the groove opening and exits the groove. A bearing is fitted on the end of the telescopic rod that exits the groove. The bearing is fitted onto the telescopic rod through an inner ring, and the bearing and the telescopic rod are in an interference fit. The bearing is installed at the bottom of the groove 4, so that the telescopic rod and the groove 4 are in a rotational fit.
[0031] The groove 4 is fixed to the first limiting post 2 and the second limiting post 9 by bolts 24, as follows. Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, threaded holes are provided on the left side walls of the first limiting post 2 and the second limiting post 9. Bolts 24 that are threadedly engaged with them are installed in the threaded holes. Three through holes with internal and external communication are provided at the bottom of the groove body 4. Each through hole corresponds to a threaded hole. The through holes are used for the fixing end of the bolt 24 to pass through. In actual application, the end of the bolt 24 without a head is the fixing end of the bolt 24.
[0032] In this embodiment, during actual use, the housing 1 is pressed onto the high-voltage frame, with the support plate 7 positioned at the cable 23 being tested. The operator then loops the cable 23 around the first limiting post 2, bringing the cable 23 into contact with the tension sensor 3, allowing the tension sensor 3 to monitor the tension of the cable 23. Figure 7 As shown; after the cable 23 is installed, the worker rotates the trough 4 to align its side wall with the slot. After alignment, the side wall of the trough 4 is inserted into the slot. After insertion, the magnetic strip 5 attracts the trough 4, initially fixing it in place. This eliminates the need for the worker to hold the trough 4, freeing their hands and allowing for further fixation with tools. Simultaneously, the through groove on the trough 4 presses the cable 23 against the support plate 7, restricting its position so that it can only move forward and backward, preventing it from moving left and right and thus preventing separation of the cable 23 from the tension sensor 3. Finally, the worker passes the fixing end of the bolt 24 through the through hole and tightens it into the threaded hole to further fix the position of the trough 4. This protects the tension sensor 3 from collisions with birds or floating objects, preventing damage to the tension sensor 3. Example 2
[0033] This embodiment further explains the technology. A first heat dissipation vent, communicating internally and externally, is provided on the left half of the upper sidewall of the tank 4. A first dustproof mesh 13 and an electric grid 14 are installed inside the first heat dissipation vent. The electric grid 14 is located below the first dustproof mesh 13. Figure 1 and Figure 2 As shown; in practical applications, the first dustproof net 13 prevents external dust from entering the interior of the tank 4 through the first heat dissipation port, while the electric grid 14 prevents insects and other objects from entering the interior of the tank 4 through the first heat dissipation port. In practical applications, the interior of the tank 4 is cooled by the first heat dissipation port, and the cooperation of the first dustproof net 13 and the electric grid 14 prevents dust and insects from entering the interior of the tank 4 through the first heat dissipation port and damaging the tension sensor 3. Example 3
[0034] This embodiment further illustrates the technology, wherein a controller 19 is installed inside the housing 1, such as... Figure 6 As shown, a partition is horizontally installed inside the housing 1, and the controller 19 and the wireless communication module 22 are both installed on the top of the partition.
[0035] To further explain, such as Figure 6 and Figure 11 As shown, the housing 1 contains a signal amplifier 21 for amplifying signals and a filter 20 for filtering signals. The tension sensor 3 is communicatively connected to the signal amplifier 21, the signal amplifier 21 is communicatively connected to the filter 20, and the filter 20 is communicatively connected to the controller 19. This paragraph as a whole constitutes a processing module for processing transmitted information.
[0036] In practical applications, the signal output terminal of the tension sensor 3 is connected to the signal input terminal of the signal amplifier 21 via a communication line, the signal output terminal of the signal amplifier 21 is connected to the signal input terminal of the filter 20 via a communication line, and the signal output terminal of the filter 20 is connected to the signal input terminal of the controller 19 via a communication line.
[0037] like Figure 6 As shown, both filter 20 and signal amplifier 21 are installed at the bottom inside the housing 1.
[0038] In practical applications, the signal amplifier 21 can be the BOSENSE TA100 model; the filter 20 can be the AU-3200 model; and the controller 19 can be the PFCL201C-20KN model.
[0039] In practical applications, the processing module can be a filter. The filter is installed inside the housing 1. The signal input terminal of the filter is connected to the signal output terminal of the tension sensor 3 via a communication line. The signal output terminal of the filter is connected to the signal input terminal of the controller 19 via a communication line.
[0040] Tension sensor 3 and controller 19 are respectively connected to the processing module. Controller 19 is connected to wireless communication module 22 for transmitting information. Controller 19 is used to receive and process the information monitored by tension sensor 3. Tension sensor 3 and controller 19 are respectively connected to the processing module through communication lines. Wireless communication module 22 is connected to controller 19 through communication lines. In practical applications, wireless communication module 22 is a 5G wireless communication module or a LoRa wireless communication module.
[0041] In this embodiment, the tension of the cable 23 is monitored by the tension sensor 3, and the monitored information is transmitted to the controller 19. During the transmission to the controller 19, the signal amplifier 21 amplifies the transmitted information, and the general filter 20 filters out unnecessary information, so that the controller 19 obtains clear tension information of the cable 23. After processing the tension information of the cable 23, the controller 19 transmits it to the backend through the wireless communication module 22, so that the staff can view the tension of the cable 23 in real time, thereby monitoring the tension of the cable 23 in real time. Example 4
[0042] This embodiment further illustrates the technology. A battery 17 for power supply is installed inside the housing 1, and a solar panel 8 for charging the battery 17 is installed on the top of the housing 1. Figure 1 , Figure 5 and Figure 6 As shown, the solar panel 8 is mounted on the top of the box 1 by a bracket. A load plate 18 is horizontally mounted inside the box 1. The load plate 18 is located above the load plate 18, and the battery 17 is mounted on the top of the load plate 18.
[0043] In practical applications, the device is powered by battery 17, enabling it to be used even without an external power source; the battery 17 is powered by solar panel 8, allowing it to provide power for extended periods. Example 5
[0044] This embodiment further illustrates the technology. A doorway is provided on the front side wall of the housing 1, and a protective door 15 is hinged inside the doorway to seal it. Figure 5 , Figure 7 and Figure 8 As shown, the protective door 15 is hinged to the door opening by a hinge or hinge; in actual application, the components inside the box 1 can be maintained and replaced by opening the protective door 15, which is very convenient.
[0045] The protective door 15 has a second heat dissipation vent for heat dissipation inside the housing 1, and a second dustproof mesh 16 is installed inside the second heat dissipation vent. Figure 5 , Figure 7 and Figure 8 As shown, in practical applications, the second heat dissipation vent dissipates heat from the inside of the housing 1 to prevent the internal temperature of the housing 1 from becoming too high; the second dustproof net 16 prevents external dust and other contaminants from entering the inside of the housing 1 through the second heat dissipation vent.
Claims
1. A high-voltage overhead line cable tension real-time monitoring device, comprising a box (1), characterized in that: The front outer wall of the box (1) is horizontally provided with a connecting rod (6), the left side wall of the front end of the connecting rod (6) is vertically provided with a support plate (7), the left side wall of the support plate (7) is horizontally provided with a first limiting column (2) at the front and back ends of the upper end, the central position of the front side wall of the support plate (7) is provided with a tension sensor (3) for monitoring the tension of the cable (23), the lower end of the left side wall of the support plate (7) is horizontally provided with a second limiting column (9), the left side of the support plate (7) is provided with a groove (4) opening to the right, the left side wall of the support plate (7) is provided with a slot for the side wall of the groove (4) to insert, the slot bottom is provided with a magnetic stripe (5) for adsorbing and fixing the groove (4), the front and back side walls of the groove (4) are provided with through grooves which are communicated front and back and have no right side wall, the through grooves are used for the cable (23) to pass out of the groove (4), the second limiting column (9) is provided with an adjusting assembly for adjusting the position of the groove (4), and the groove (4) is fixed to the first limiting column (2) and the second limiting column (9) through bolts (24).
2. The high voltage overhead line cable tension real-time monitoring device according to claim 1, characterized in that: The left side wall of the second limiting column (9) is provided with a groove, the adjusting assembly comprises a sliding block (10) which is slidably connected with the groove, the sliding block (10) is rotatably connected with the groove, the inner side wall of the groove is provided with a limiting block (11) for preventing the sliding block (10) from sliding out of the groove, the left side wall of the sliding block (10) is horizontally provided with an extension rod (12), the left end of the extension rod (12) passes through the groove, and the left end of the extension rod (12) is fixedly connected with the upper end of the groove bottom of the groove (4).
3. The high voltage overhead line cable tension real-time monitoring device according to claim 1, characterized in that: The left half of the upper side wall of the groove (4) is provided with a first heat dissipation opening which is communicated between the inside and the outside, the first heat dissipation opening is provided with a first dustproof net (13) and an electric net (14), and the electric net (14) is located below the first dustproof net (13).
4. The high voltage overhead line cable tension real-time monitoring device according to claim 3, characterized in that: The box (1) is provided with a controller (19) and a processing module for processing transmission information, the tension sensor (3) and the controller (19) are respectively connected with the processing module in communication, the controller (19) is connected with a wireless communication module (22) for transmitting information in communication, and the controller (19) is used for receiving and processing information monitored by the tension sensor (3).
5. The high voltage overhead line cable tension real-time monitoring device according to claim 4, characterized in that: The processing module comprises a signal amplifier (21) and a filter (20) which are installed in the box (1) and are used for amplifying signals and filtering signals respectively, the tension sensor (3) is connected with the signal amplifier (21) in communication, the signal amplifier (21) is connected with the filter (20) in communication, and the filter (20) is connected with the controller (19) in communication.
6. The high voltage overhead line cable tension real time monitoring device of claim 1, wherein: The box (1) is provided with a battery (17) for power supply, and the top of the box (1) is provided with a solar panel (8) for charging the battery (17).
7. The high voltage overhead line cable tension real-time monitoring device according to claim 6, characterized in that: The front side wall of the box (1) is provided with a door opening, the door opening is hinged with a protective door (15) for sealing the door opening, the protective door (15) is provided with a second heat dissipation opening for heat dissipation of the inside of the box (1), and the second heat dissipation opening is provided with a second dustproof net (16).