Load monitoring device

By installing load monitoring devices on the towers and using mutual inductance coils and clamping mechanisms to detect cable current, the problems of detection data error and high cost are solved, and accurate real-time monitoring of cable load is achieved.

CN119574926BActive Publication Date: 2025-11-25GUANGDONG POWER GRID CO LTD +1
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Patent Information

Application Number
CN202411763930.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-11-25
Estimated Expiration
2044-12-03

AI Technical Summary

Technical Problem

In existing technologies, staff conduct on-site testing during the day, which leads to discrepancies between the testing data and the nighttime load data, resulting in inaccurate results and high time and labor costs.

Method used

Design a load monitoring device, installed on a pole, including a monitor body, a detection mechanism and a clamping mechanism. It uses a mutual inductance coil and a switching element to detect the current of the cable, and the clamping mechanism prevents the cable from falling off, thereby realizing real-time load monitoring.

Benefits of technology

It achieves accurate and real-time cable load detection, reduces time and labor costs, and improves detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a load monitoring device arranged on a tower, which comprises a monitor body, a detection mechanism comprising a detection main body and an opening and closing member, the detection main body is in signal connection with the monitor body, a cable accommodating space and a cable avoiding opening are arranged on the detection main body, the opening and closing member is movably arranged at the cable avoiding opening, so that the opening and closing member has an opening position for opening the cable avoiding opening and a closing position for closing the cable avoiding opening, a clamping mechanism comprising a cable clamping part and a fixing part arranged on the cable clamping part, the cable clamping part is arranged in the cable accommodating space, and the fixing part is connected with the detection main body. Through the technical scheme provided in the application, the problems in the related art that the staff needs to go to the site for detection during the day, the data detected during the day and the data of the night load have errors, the result is inaccurate, the staff needs to go to the site for real-time detection, and the time cost and the labor cost are high can be solved.
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Description

Technical Field

[0001] This invention relates to the field of low-voltage line testing technology, and more specifically, to a load monitoring device. Background Technology

[0002] With the rapid development of the national economy, the demand for electricity is increasing. Utilizing the power grid distribution system ensures the safe and efficient transmission of electricity from power plants or substations to end users. Specifically, transformers convert high-voltage electricity into low-voltage electricity suitable for user use, ensuring safety and the normal operation of equipment. However, during the summer nights when loads are heavy, power outages may occur, affecting the reliability of the power grid.

[0003] In related technologies, current data from transmission lines is analyzed using distribution transformer terminals to determine the maximum current during the tripping period. Then, staff manually measure the transmission line data on-site during the day to assess the load condition. However, this daytime on-site monitoring involves discrepancies between daytime and nighttime load data, leading to inaccurate results. Furthermore, the need for real-time on-site monitoring results in high time and labor costs. Summary of the Invention

[0004] This invention provides a load monitoring device to solve the problems in related technologies where personnel need to go to the site during the day to conduct tests, but the data detected during the day differs from the load data at night, resulting in inaccurate results. Furthermore, the need for personnel to conduct real-time on-site tests leads to high time and labor costs.

[0005] This invention provides a load monitoring device mounted on a pole. The load monitoring device includes: a monitor body mounted on the pole; a detection mechanism including a detection main body and an opening / closing component, the detection main body being signal-connected to the monitor body, the detection main body having a cable accommodating space and a cable clearance opening communicating with the cable accommodating space, the opening / closing component being movably disposed at the cable clearance opening so that the opening / closing component has an open position for opening the cable clearance opening and a closed position for closing the cable clearance opening; and a clamping mechanism including a cable clamping part for clamping the cable under test and a fixing part disposed on the cable clamping part, the cable clamping part passing through the cable accommodating space, and the fixing part being connected to the detection main body.

[0006] Furthermore, the detection body includes a mutual inductance coil, which is used to detect the current of the cable on the cable clamping part. The mutual inductance coil has an arc-shaped structure. The cable accommodating space and the cable clearance opening are both set on the mutual inductance coil. The opening and closing part includes an arc-shaped sealing block. When the opening and closing part is in the closed position, the two ends of the mutual inductance coil are respectively attached to the two ends of the arc-shaped sealing block.

[0007] Furthermore, the cable clamping part includes an arc-shaped elastic plate, the lower surface of which is used to clamp the cable; the fixing part includes a square collar, which is disposed on the upper surface of the arc-shaped elastic plate and can be fitted onto the side wall of the mutual inductance coil; the load monitoring device also includes a first fastener, which passes through both ends of the square collar to clamp the mutual inductance coil.

[0008] Furthermore, the clamping mechanism also includes a clamping buckle, which includes a first clamping arm, a second clamping arm, and a second fastener. The first clamping arm and the second clamping arm are pivotally connected. The first end of the first clamping arm and the first end of the second clamping arm are both connected to the upper surface of the arc-shaped elastic plate. The second fastener is sequentially inserted through the second end of the first clamping arm and the second end of the second clamping arm to abut against the arc-shaped elastic plate.

[0009] Furthermore, the load monitoring device also includes two clamping buckles, which are spaced apart along the length of the arc-shaped elastic plate, and a square collar is disposed between the two clamping buckles.

[0010] Furthermore, the detection body also includes a housing, one end of which is connected to the detection body. The housing is provided with a driving structure to drive the opening and closing components to switch between the open and closed positions.

[0011] Furthermore, the drive structure includes a drive handle and a lifting platform. The drive handle is rotatably mounted on the housing, and the lifting platform is movably mounted inside the housing along the length of the housing. The lifting platform is connected to the opening and closing element, and the drive handle is drivenly connected to the lifting platform to move the opening and closing element on the housing.

[0012] Furthermore, the outer casing is also provided with an elastic reset component, the first end of which is connected to the top wall of the outer casing, and the second end of which is connected to the lifting platform; the outer casing is provided with a guide rail groove, and the lifting platform is provided with a slide rail, which is movably disposed in the guide rail groove.

[0013] Furthermore, the side wall of the cable clamping part has a temperature measuring hole, and the load monitoring device also includes a temperature measuring probe, which is set in the temperature measuring hole and is connected to the monitor body for signal transmission.

[0014] Furthermore, the load monitoring device also includes a voltage detection component, which includes a conductive sheet, a fixed sheet, a push handle, and a transmission line. The conductive sheet is disposed on the first side of the fixed sheet, the push handle is disposed on the second side of the fixed sheet, the fixed sheet is attached to the cable, the first end of the transmission line is connected to the conductive sheet for signal connection, and the second end of the transmission line is connected to the monitor body for signal connection.

[0015] According to the technical solution of this invention, a load monitoring device can be installed on a pole to monitor the load of cables on the pole. The load monitoring device includes a monitor body, a monitoring mechanism, and a clamping mechanism. The monitor body is installed on the pole, and the monitoring mechanism includes a detection body and an opening / closing component. The detection body is signal-connected to the monitor body. The detection body has a cable receiving space and a cable clearance opening. The opening / closing component is movably installed at the cable clearance opening. When it is necessary to place the cable in the cable receiving space of the detection body, the opening / closing component needs to be in the open position to open the cable clearance opening, so that the cable can enter the cable receiving space in the detection body through the cable clearance opening. Then, the opening / closing component is switched from the open position to the closed position to close the cable clearance opening. In this way, the detection body and the opening / closing component can both perform load monitoring of the cable and prevent the cable from detaching from the cable receiving space of the detection body. The clamping mechanism, comprising a cable clamping part and a fixing part, clamps the cable within the cable accommodating space. The fixing part is mounted on the cable clamping part and connects to the detection body. This design not only clamps the cable within the cable accommodating space of the detection body but also prevents the cable from detaching from the detection body. With the monitor mounted on the tower and the detection body connected to it, the monitor can perform load testing on the cable. The resulting signal is transmitted to the monitor, enabling real-time cable monitoring and preventing inaccurate cable testing. When cable data is needed, staff can directly export the data from the monitor, reducing time and labor costs while ensuring data accuracy. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the clamping structure provided according to an embodiment of the present invention is shown;

[0018] Figure 2 A schematic diagram of the clamping structure provided according to an embodiment of the present invention is shown from another perspective;

[0019] Figure 3 A schematic diagram of the load monitoring device provided according to an embodiment of the present invention in the closed position is shown;

[0020] Figure 4This diagram shows a structural schematic of the load monitoring device provided according to an embodiment of the present invention in a closed position from another perspective;

[0021] Figure 5 A schematic diagram of the load monitoring device provided according to an embodiment of the present invention in the open position is shown;

[0022] Figure 6 This diagram shows a structural schematic of the load monitoring device provided according to an embodiment of the present invention in the open position from another perspective;

[0023] Figure 7 A schematic diagram of the structure of the monitor body provided according to an embodiment of the present invention is shown.

[0024] The above figures include the following reference numerals:

[0025] 10. Monitor body;

[0026] 20. Testing institution; 21. Testing body; 211. Cable receiving space; 212. Cable clearance opening; 213. Mutual inductance coil; 214. Housing; 215. Elastic reset component; 22. Opening and closing component; 221. Arc-shaped sealing block;

[0027] 30. Clamping mechanism; 31. Cable clamping part; 311. Arc-shaped elastic plate; 312. Temperature measuring hole; 32. Fixing part; 321. Square collar; 33. Clamping buckle; 331. First clamping arm; 332. Second clamping arm; 333. Second fastener;

[0028] 41. First fastener; 42. Drive structure; 421. Drive handle; 422. Lifting platform. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1 to 7As shown, this embodiment of the invention provides a load monitoring device, which is installed on a pole. The load monitoring device includes a monitor body 10, a detection mechanism 20, and a clamping mechanism 30. The monitor body 10 is installed on the pole. The detection mechanism 20 includes a detection body 21 and an opening / closing member 22. The detection body 21 is signal-connected to the monitor body 10. The detection body 21 is provided with a cable receiving space 211 and a cable clearance opening 212 communicating with the cable receiving space 211. The opening / closing member 22 is movably installed at the cable clearance opening 212 so that the opening / closing member 22 has an open position for opening the cable clearance opening 212 and a closed position for closing the cable clearance opening 212. The clamping mechanism 30 includes a cable clamping part 31 for clamping the cable under test and a fixing part 32 provided on the cable clamping part 31. The cable clamping part 31 passes through the cable receiving space 211, and the fixing part 32 is connected to the detection body 21.

[0031] The load monitoring device provided in this embodiment can be installed on a pole to monitor the load of cables on the pole. The load monitoring device includes a monitor body 10, a monitoring mechanism, and a clamping mechanism 30. The monitor body 10 is installed on the pole. The detection mechanism 20 includes a detection body 21 and an opening / closing member 22. The detection body 21 is signal-connected to the monitor body 10. The detection body 21 has a cable receiving space 211 and a cable clearance opening 212. The opening / closing member 22 is movably installed at the cable clearance opening 212, allowing the cable to be placed in the detection area when needed. Within the cable accommodating space 211 of the main body 21, the opening and closing element 22 needs to be in the open position to open the cable clearance opening 212, allowing the cable to enter the cable accommodating space 211 within the detection main body 21 through the cable clearance opening 212. Then, the opening and closing element 22 is switched from the open position to the closed position to close the cable clearance opening 212. This allows the detection main body 21 and the opening and closing element 22 to both perform load monitoring of the cable and prevent the cable from detaching from the cable accommodating space 211 of the detection main body 21. The clamping mechanism 30 clamps the cable and includes a cable clamping part 31 and a fixing part 32. The cable clamping part 31 passes through the cable receiving space 211 to clamp the cable, and the fixing part 32 is disposed on the cable clamping part 31 and can be connected to the detection body 21. This allows the clamping mechanism 30 to clamp the cable, and the cable clamping part 31 of the clamping mechanism 30 passes through the cable receiving space 211 of the detection body 21, while also preventing the cable from falling off the detection body 21. When the monitor body 10 is installed on the tower, the detection body 21 is connected to the monitor body 10 for signal transmission. This allows the detection body 21 to perform load testing on the cable, and the detected signal is transmitted to the monitor body 10. This enables real-time cable testing and avoids inaccurate cable testing. When cable data is needed, the staff can directly export the data from the monitor body 10, which reduces time and labor costs and ensures the accuracy of the test data.

[0032] like Figures 3 to 6As shown, the detection body 21 includes a mutual inductance coil 213, which is used to detect the current of the cable on the cable clamping part 31. The mutual inductance coil 213 has an arc-shaped structure. The cable accommodating space 211 and the cable clearance opening 212 are both set on the mutual inductance coil 213. The opening and closing part 22 includes an arc-shaped sealing block 221. When the opening and closing part 22 is in the closed position, the two ends of the mutual inductance coil 213 are respectively attached to the two ends of the arc-shaped sealing block 221. With the above structure, the current of the cable on the cable clamping part 31 of the clamping mechanism 30 can be detected by the mutual inductance coil 213. The mutual inductance coil 213 has an arc-shaped structure, and the cable receiving space 211 and the cable clearance opening 212 are both set on the mutual inductance coil 213. This allows the arc-shaped sealing block 221 to block or open the cable clearance opening 212. When the opening and closing part 22 is in the closed position, the two ends of the arc-shaped sealing block 221 can respectively fit with the two ends of the mutual inductance coil 213, so that the mutual inductance coil 213 and the arc-shaped sealing block 221 fit together in a ring structure. This allows the cable to pass through the cable receiving space 211 when clamped by the clamping mechanism 30. In this way, the mutual inductance coil 213 and the arc-shaped sealing block 221 play a role in preventing the cable from falling off, thereby ensuring that the mutual inductance coil 213 can detect the current of the cable in real time.

[0033] like Figure 1 and Figure 2 As shown, the cable clamping part 31 includes an arc-shaped elastic plate 311, the lower surface of which is used to clamp the cable. With this structure, the arc-shaped elastic plate 311 can clamp the cable, thus preventing it from falling off.

[0034] like Figures 1 to 6 As shown, the fixing part 32 includes a square collar 321, which is disposed on the upper surface of the arc-shaped elastic plate 311. The square collar 321 can be fitted onto the side wall of the mutual inductance coil 213. The load monitoring device also includes a first fastener 41, which passes through both ends of the square collar 321 to clamp the mutual inductance coil 213. With the above structure, by setting the square collar 321 on the upper surface of the arc-shaped elastic plate 311 and making the square collar 321 openable and closable, the mutual inductance coil 213 can be disposed inside the square collar 321 when the square collar 321 is in the open position. Then, by using the first fastener 41 to pass through both ends of the square collar 321 in sequence, the square collar 321 can clamp the mutual inductance coil 213 under the action of the first fastener 41, ensuring that the clamping mechanism 30 can clamp both the cable and the mutual inductance coil 213.

[0035] like Figure 1 and Figure 2As shown, the clamping mechanism 30 also includes a clamping buckle 33, which includes a first clamping arm 331, a second clamping arm 332, and a second fastener 333. The first clamping arm 331 and the second clamping arm 332 are pivotally connected. The first end of the first clamping arm 331 and the first end of the second clamping arm 332 are both connected to the upper surface of the arc-shaped elastic plate 311. The second fastener 333 is sequentially inserted through the second end of the first clamping arm 331 and the second end of the second clamping arm 332 to abut against the arc-shaped elastic plate 311. With the above structure, the first clamping arm 331 and the second clamping arm 332 are pivotally connected. The first end of the first clamping arm 331 and the first end of the second clamping arm 332 are both connected to the upper surface of the arc-shaped elastic plate 311. When the second fastener 333 is sequentially inserted through the second end of the first clamping arm 331 and the second end of the second clamping arm 332, the first end of the first clamping arm 331 and the first end of the second clamping arm 332 will move closer to each other as the second fastener 333 gradually clamps them. This clamps the arc-shaped elastic plate 311, allowing it to clamp the cable. The second fastener 333 further enhances the clamping effect.

[0036] like Figure 2 As shown, the load monitoring device also includes two clamping buckles 33, which are spaced apart along the length of the arc-shaped elastic plate 311, and a square collar 321 is disposed between the two clamping buckles 33. With this structure, by providing two clamping buckles 33, the clamping effect of the arc-shaped elastic plate 311 on the cable can be improved, and the square collar 321 can be easily installed.

[0037] like Figures 3 to 6 As shown, the detection body 21 also includes a housing 214, one end of which is connected to the detection body 21. A driving structure 42 is provided on the housing 214 to drive the opening / closing member 22 to switch between an open and closed position. Using this structure, the housing 214 is connected to the detection body 21, and the driving structure 42 is provided on the housing 214. The driving structure 42 can drive the opening / closing member 22 to switch between an open and closed position, simplifying the driving method.

[0038] like Figures 3 to 6As shown, the drive structure 42 includes a drive handle 421 and a lifting platform 422. The drive handle 421 is rotatably mounted on the housing 214, and the lifting platform 422 is movably mounted inside the housing 214 along its length. The lifting platform 422 is connected to the opening / closing member 22, and the drive handle 421 is driven to move the opening / closing member 22 on the housing 214. With this structure, the drive handle 421 is rotatably mounted on the housing 214, and the lifting platform 422 is movably mounted along its length. This allows the drive handle 421 to rotate relative to the housing 214, driving the lifting platform 422 to move vertically. This facilitates the driving mechanism.

[0039] like Figures 3 to 6 As shown, the outer casing 214 is also provided with an elastic reset member 215. The first end of the elastic reset member 215 is connected to the top wall of the outer casing 214, and the second end of the elastic reset member 215 is connected to the lifting platform 422. With the above structure, by connecting the first end of the elastic reset member 215 to the top wall of the outer casing 214 and the second end of the elastic reset member 215 to the lifting platform 422, the elastic reset member 215 can be extended when the lifting platform 422 moves vertically. Then, when it is necessary to switch the opening / closing member 22 from the open position to the closed position, the elastic reset member 215 can drive the lifting platform 422 to reset, thereby allowing the two ends of the opening / closing member 22 to fit with the two ends of the mutual inductance coil 213.

[0040] In this embodiment, the outer casing 214 is provided with a guide rail groove, and the lifting platform 422 is provided with a slide rail, which is movably disposed within the guide rail groove. Using this structure, by sliding the slide rail of the lifting platform 422 within the guide rail groove of the outer casing 214, the movement of the lifting platform 422 is guided.

[0041] like Figure 1 As shown, the cable clamping part 31 has a temperature measuring hole 312 on its side wall. The load monitoring device also includes a temperature measuring probe, which is disposed in the temperature measuring hole 312 and is connected to the monitor body 10 via signal transmission. With this structure, the temperature measuring probe is placed in the temperature measuring hole 312 of the cable clamping part 31, allowing it to detect the temperature of the cable and transmit the detected temperature information to the monitor body 10. This enables the monitor body 10 to perform real-time monitoring of the cable's current and temperature information.

[0042] In this embodiment, the load monitoring device further includes a voltage detection component, which comprises a conductive sheet, a fixing plate, a push handle, and a transmission line. The conductive sheet is disposed on a first side of the fixing plate, and the push handle is disposed on a second side of the fixing plate. The fixing plate is attached to the cable. The first end of the transmission line is connected to the conductive sheet for signal transmission, and the second end of the transmission line is connected to the monitor body 10 for signal transmission. With this structure, the conductive sheet is disposed on the first side of the fixing plate, and the push handle is disposed on the second side of the fixing plate. The push handle can push the conductive sheet into the cable for voltage detection, and the fixing plate is secured to the cable using insulating tape for fixation.

[0043] It should be noted that this solution draws power from overhead lines, and voltage measurement is also achieved through these power lines. The solution can be equipped with three sets of current and temperature measurement lines, which can be selected according to actual site requirements. Line measurement modes include main line measurement mode and branch line measurement mode. The branch line measurement mode measures branch line data and calculates the sum of the branch line currents. This solution includes a timing module that measures and records the average value of various data points every 15 minutes, with a database capable of storing at least 30 days of data. This solution supports remote data transmission via radio frequency and carrier wave, allowing data to be acquired on the ground or transmitted to the terminal via carrier wave. This solution includes a microcontroller control module to implement the aforementioned electronic control functions.

[0044] The monitor body 10 includes a screen, mounting buckles, an operation button area, a voltage interface, a current interface, and a temperature measurement interface. There are three sets of current and temperature measurement interfaces, and the temperature measurement interface can receive three-phase temperature measurement signals. The monitor body 10 has four mounting buckles on both sides for securing it to the pole / tower with straps. The monitor body 10 has a built-in small battery, allowing it to continue operating for a period of time after a power outage.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0049] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A load monitoring device, installed on a pole, characterized in that, The load monitoring device includes: The monitor body (10) is installed on the tower; The detection mechanism (20) includes a detection body (21) and an opening and closing component (22). The detection body (21) is signal connected to the monitor body (10). The detection body (21) is provided with a cable receiving space (211) and a cable clearance opening (212) communicating with the cable receiving space (211). The opening and closing component (22) is movably disposed at the cable clearance opening (212) so that the opening and closing component (22) has an open position for opening the cable clearance opening (212) and a closed position for closing the cable clearance opening (212). The clamping mechanism (30) includes a cable clamping part (31) for clamping the cable under test and a fixing part (32) disposed on the cable clamping part (31). The cable clamping part (31) passes through the cable receiving space (211), and the fixing part (32) is connected to the detection body (21).

2. The load monitoring device according to claim 1, characterized in that, The detection body (21) includes a mutual inductance coil (213), which is used to detect the current of the cable on the cable clamping part (31). The mutual inductance coil (213) has an arc-shaped structure. The cable accommodating space (211) and the cable clearance opening (212) are both set on the mutual inductance coil (213). The opening and closing part (22) includes an arc-shaped closing block (221). When the opening and closing part (22) is in the closed position, the two ends of the mutual inductance coil (213) are respectively attached to the two ends of the arc-shaped closing block (221).

3. The load monitoring device according to claim 2, characterized in that, The cable clamping part (31) includes an arc-shaped elastic plate (311), the lower surface of which is used to clamp the cable; The fixing part (32) includes a square collar (321) disposed on the upper surface of the arc-shaped elastic plate (311). The square collar (321) can be fitted onto the side wall of the mutual inductance coil (213). The load monitoring device also includes a first fastener (41) which passes through both ends of the square collar (321) to clamp the mutual inductance coil (213).

4. The load monitoring device according to claim 3, characterized in that, The clamping mechanism (30) further includes a clamping buckle (33), which includes a first clamping arm (331), a second clamping arm (332), and a second fastener (333). The first clamping arm (331) and the second clamping arm (332) are pivotally connected. The first end of the first clamping arm (331) and the first end of the second clamping arm (332) are both connected to the upper surface of the arc-shaped elastic plate (311). The second fastener (333) is sequentially inserted through the second end of the first clamping arm (331) and the second end of the second clamping arm (332) to abut against the arc-shaped elastic plate (311).

5. The load monitoring device according to claim 4, characterized in that, The load monitoring device also includes two clamping buckles (33), which are spaced apart along the length of the arc-shaped elastic plate (311), and the square collar (321) is disposed between the two clamping buckles (33).

6. The load monitoring device according to any one of claims 1 to 5, characterized in that, The detection body (21) also includes a housing (214), one end of which is connected to the detection body (21). A driving structure (42) is provided on the housing (214) to drive the opening and closing member (22) to switch between the open position and the closed position.

7. The load monitoring device according to claim 6, characterized in that, The drive structure (42) includes a drive handle (421) and a lifting platform (422). The drive handle (421) is rotatably mounted on the housing (214). The lifting platform (422) is movably mounted inside the housing (214) along the length of the housing (214). The lifting platform (422) is connected to the opening and closing member (22). The drive handle (421) is driven to connect with the lifting platform (422) so that the opening and closing member (22) moves on the housing (214).

8. The load monitoring device according to claim 7, characterized in that, The outer shell (214) is also provided with an elastic reset member (215), the first end of the elastic reset member (215) is connected to the top wall of the outer shell (214), and the second end of the elastic reset member (215) is connected to the lifting platform (422); The outer casing (214) is provided with a guide rail groove, and the lifting platform (422) is provided with a slide rail, which is movably disposed in the guide rail groove.

9. The load monitoring device according to any one of claims 1 to 5, characterized in that, The cable clamping part (31) has a temperature measuring hole (312) on its side wall. The load monitoring device also includes a temperature measuring probe, which is disposed in the temperature measuring hole (312) and is signal-connected to the monitor body (10).

10. The load monitoring device according to any one of claims 1 to 5, characterized in that, The load monitoring device further includes a voltage detection component, which includes a conductive sheet, a fixed sheet, a push handle, and a transmission line. The conductive sheet is disposed on the first side of the fixed sheet, and the push handle is disposed on the second side of the fixed sheet. The fixed sheet is attached to the cable. The first end of the transmission line is connected to the conductive sheet for signal transmission, and the second end of the transmission line is connected to the monitor body (10) for signal transmission.

Citation Information

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