Lightning stroke monitor for power transmission line

Abstract

The utility model relates to a power transmission line lightning stroke monitor which comprises a monitor, an external sensor and a wire installed between the monitor and the external sensor, an induction port is arranged on the outer side of the external sensor, a threaded sleeve is installed on the outer side of the external sensor, a limiting piece attached to the surface of the external sensor is installed on the inner side of the threaded sleeve, and the external sensor is arranged in the limiting piece. One end of the limiting piece is annular and is overlapped with the induction opening, the threaded sleeve drives the limiting piece to move horizontally through rotation, and the threaded sleeve and the induction opening are staggered to form limiting. When the monitored power transmission line is thin, the threaded rod can be adjusted to move, so that the outer side of the rubber ring is crossed with the induction port to clamp and position the power transmission line, and the external sensor can receive and monitor surge conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning strike monitors, and particularly relates to a lightning strike monitor for a transmission line. Background Art

[0002] The surge generated by a lightning strike can cause serious damage to power and signal system networks, such as ordinary buildings, the new energy industry, etc. The lightning electromagnetic pulse will have a serious impact on these systems. In order to maintain the long-term operation of the systems and equipment, maintenance engineers need to investigate the lightning strike time, location, lightning current amplitude, and even the transmission path in order to implement more accurate protection measures.

[0003] The lightning strike monitoring equipment for transmission lines generally consists of two parts: an external sensor and a monitor. When in use, the transmission line needs to pass through the induction port of the external sensor for surge monitoring. While passing through the induction port, it needs to be in contact with the external sensor to facilitate the external sensor to receive and monitor the surge. Due to the different thicknesses of the transmission lines, when monitoring lightning strikes on thinner transmission lines, the transmission line is likely to pass through the middle of the external sensor without making contact with it, affecting the accuracy of the amplitude monitoring when the surge occurs and making it inconvenient to put forward accurate judgment measures for subsequent implementation of protection measures for the transmission line. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a lightning strike monitor for a transmission line to solve the problem that when monitoring lightning strikes on thinner transmission lines, it is not easy to contact the external sensor of the device to ensure the accuracy and stability of the monitoring data.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A lightning strike monitor for a transmission line includes a monitor, an external sensor, and a wire installed between the monitor and the external sensor. An induction port is provided on the outer side of the external sensor, a threaded sleeve is installed on the outer side of the external sensor, a limiting member that fits the surface of the external sensor is installed inside the threaded sleeve. One end of the limiting member is annular and overlaps with the induction port. The threaded sleeve drives the limiting member to move horizontally by rotation and forms a limit by staggering with the induction port.

[0006] On the basis of the above technical solution, the utility model can be further improved as follows.

[0007] Further, one end of the external sensor is semi-circular, the induction port is opened on the surface of the external sensor, and the center of the induction port coincides with the center of the semi-circular end of the external sensor.

[0008] Further, a positioning plate is mounted on the surface of the external sensor. The positioning plate is perpendicular to the external sensor. A shaft hole is formed in the center of the surface of the positioning plate, and arc-shaped grooves are formed at both ends of the shaft hole on the surface of the external sensor.

[0009] Further, the threaded sleeve is installed in the shaft hole and extends to the inside of the arc-shaped groove at both ends. Anti-slip threads are provided at both ends of the outer side of the threaded sleeve.

[0010] Further, the limiting member includes a threaded rod, a ring sleeve and a rubber ring. One end of the threaded rod is installed inside the threaded sleeve, and the other end faces the induction port. The ring sleeve is semi-circular. The ring sleeve is installed at one end of the threaded rod away from the positioning plate and fits the surface of the external sensor.

[0011] Further, the ring sleeve is located outside the induction port. The rubber ring is installed inside the ring sleeve. The inner diameter of the rubber ring is the same as the diameter of the induction port. The centers of the ring sleeve and the rubber ring coincide with the center of the induction port.

[0012] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0013] In the present utility model, through the threaded sleeve installed in the positioning plate, in cooperation with the threaded rod, the ring sleeve and the rubber ring, the threaded rod can move back and forth along the surface of the external sensor under the action of the threaded rotation of the threaded sleeve to adjust the size of the induction port. When the monitored transmission line is relatively thin, the threaded rod can be adjusted to move so that the outer side of the rubber ring intersects with the induction port to form clamping and positioning for the transmission line, facilitating the external sensor to receive and monitor the surge. When the transmission line is relatively large, the threaded ring can be adjusted to move so that its inner side intersects with the induction port, while leaving enough space for the transmission line to pass through and clamping and positioning the transmission line at the same time, ensuring the stability of the cooperation of the transmission line during the monitoring process and the accuracy of the monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a lightning strike monitor for a transmission line provided by an embodiment of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the connection relationship between the threaded rod and the threaded sleeve in an embodiment of the present utility model;

[0016] Figure 3 is an exploded structural diagram of the threaded sleeve and the positioning plate in an embodiment of the present utility model;

[0017] In the drawings, the list of components represented by each reference numeral is as follows:

[0018] 1. Monitor; 2. External sensor; 21. Induction port; 22. Arc-shaped groove; 3. Wire; 4. Positioning plate; 41. Shaft hole; 5. Threaded sleeve; 6. Limiting member; 61. Threaded rod; 62. Ring sleeve; 63. Rubber ring. Detailed implementation manner

[0019] To facilitate the understanding of this application, the following will describe this application more comprehensively with reference to the relevant drawings. Embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0021] Please refer to Figures 1-3 , a lightning strike monitor for a transmission line of the present utility model includes a monitor 1, an external sensor 2, and a wire 3 installed between the monitor 1 and the external sensor 2. An induction port 21 is provided on the outer side of the external sensor 2, a threaded sleeve 5 is installed on the outer side of the external sensor 2, and a limiting member 6 that fits the surface of the external sensor 2 is installed inside the threaded sleeve 5. One end of the limiting member 6 is annular and overlaps with the induction port 21. The threaded sleeve 5 drives the limiting member 6 to move horizontally by rotation and forms a limit by intersecting with the induction port 21.

[0022] Please refer to Figure 2 , one end of the external sensor 2 is semi-circular, the induction port 21 is opened on the surface of the external sensor 2, the center of the induction port 21 coincides with the center of the semi-circular end of the external sensor 2, a positioning plate 4 is installed on the surface of the external sensor 2, the positioning plate 4 is perpendicular to the external sensor 2, a shaft hole 41 is opened in the center of the surface of the positioning plate 4, and arc-shaped grooves 22 located at both ends of the shaft hole 41 are opened on the surface of the external sensor 2. The setting of the arc-shaped grooves 22 expands the space on both sides of the positioning plate 4 with the shaft hole 41 as the center. After the threaded sleeve 5 is installed inside the shaft hole 41, there is enough space for the threaded sleeve 5 to rotate and adjust, avoiding friction and conflict between the threaded sleeve 5 and the external sensor 2 and affecting the smoothness of the adjustment and use.

[0023] Please refer to Figure 2 , the threaded sleeve 5 is installed in the shaft hole 41 and both ends extend to the inside of the arc-shaped grooves 22, and anti-slip threads are provided at both ends of the outer side of the threaded sleeve 5.

[0024] Please refer to Figure 2, the limiting member 6 includes a threaded rod 61, a collar 62 and a rubber ring 63. One end of the threaded rod 61 is installed inside the threaded sleeve 5, and the other end faces the induction port 21. The collar 62 is semi-circular. The collar 62 is installed at one end of the threaded rod 61 away from the positioning plate 4 and fits on the surface of the external sensor 2. Under the condition that the collar 62 fits on the surface of the external sensor 2, when the threaded sleeve 5 rotates, the threaded rod 61 can only move horizontally along the surface of the external sensor 2 under the influence of screw rotation. Under the influence of different rotations of the threaded sleeve 5, the collar 62 will move closer to or away from the induction port 21. The semi-circular setting of the collar 62 facilitates the rubber ring 63 to cooperate with the induction port 21 through the outer surface at the opening side to clamp the passing power transmission line. The collar 62 covers the diameter range of the rubber ring 63, enabling the rubber ring 63 to be stably stressed and deform when contacting power transmission lines of different sizes, achieving the effect of clamping and fixing.

[0025] Please refer to Figure 2 , the collar 62 is located outside the induction port 21, and the rubber ring 63 is installed inside the collar 62. The inner diameter of the rubber ring 63 is the same as the diameter of the induction port 21. The centers of the collar 62 and the rubber ring 63 coincide with the center of the induction port 21. The shape of the rubber ring 63 is set such that it can cooperate with the induction port 21 through the outer surface to clamp and fix a smaller power transmission line, and can also form a clamping and fixing effect on a larger power transmission line through the inner surface and the induction port 21. The usage method is for power transmission lines of different sizes. The clamping method on both the inner and outer sides is used for large and small power transmission lines, shortening the adjustment distance of the threaded rod 61 in the corresponding situation, reducing the workload, and facilitating the operation and use by the staff.

[0026] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises / include" or "has" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transmission line lightning monitor, comprising a monitor (1), an external sensor (2), and a wire (3) installed between the monitor (1) and the external sensor (2), characterized in that: The outer side of the external sensor (2) is provided with a sensing port (21), the outer side of the external sensor (2) is installed with a threaded sleeve (5), the inner side of the threaded sleeve (5) is installed with a limiter (6) that fits the surface of the external sensor (2), one end of the limiter (6) is in a ring shape and overlaps with the sensing port (21), the threaded sleeve (5) drives the limiter (6) to move horizontally by rotation, and forms a limit by interlacing with the sensing port (21).

2. The power transmission line lightning monitor according to claim 1, characterized in that: One end of the external sensor (2) is semicircular, the sensing port (21) is provided on the surface of the external sensor (2), and the center of the sensing port (21) coincides with the center of one semicircular end of the external sensor (2).

3. The power transmission line lightning monitor according to claim 2, characterized in that: A positioning plate (4) is installed on the surface of the external sensor (2), the positioning plate (4) is perpendicular to the external sensor (2), an axial hole (41) is opened in the center of the surface of the positioning plate (4), and arc grooves (22) located at both ends of the axial hole (41) are opened in the center of the surface of the external sensor (2).

4. The power transmission line lightning monitor according to claim 3, characterized in that: The threaded sleeve (5) is installed in the shaft hole (41), and both ends extend to the inner side of the arc groove (22). Both ends of the outer side of the threaded sleeve (5) are provided with anti-slip grooves.

5. The power transmission line lightning monitor according to claim 4, characterized in that: The limiting member (6) comprises a threaded rod (61), a ring sleeve (62) and a rubber ring (63); one end of the threaded rod (61) is mounted on the inner side of the threaded sleeve (5), and the other end faces the sensing port (21); the ring sleeve (62) is semicircular and is mounted on one end of the threaded rod (61) away from the positioning plate (4) and fits the surface of the external sensor (2).

6. The power transmission line lightning monitor according to claim 5, characterized in that: The ring sleeve (62) is located on the outside of the sensing port (21), and the rubber ring (63) is installed on the inside of the ring sleeve (62). The diameter of the inner side of the rubber ring (63) is the same as the diameter of the sensing port (21), and the centers of the ring sleeve (62) and the rubber ring (63) coincide with the center of the sensing port (21).

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