Lightning protection device for medium wave transmitting station

Abstract

The utility model discloses a medium wave transmitting station lightning protection device which comprises a transmitting station assembly, a wire clamping mechanism, a wire clamping butt joint mechanism and an auxiliary rotating mechanism, the wire clamping mechanism comprises a grounding wire, a clamping inner pipe, a rotating sleeve, a rotating push block, a rotating push spring and a wire clamping plate, and the wire clamping butt joint mechanism comprises a slope block, a clamping outer pipe, a clamping groove, an extending clamping frame, a rotating frame and a rotating pressing plate. According to the wire clamping mechanism, self-adaptive clamping of grounding wires with different diameters and limiting rotation design of a rotary sleeve are realized, and continuous stable pressure provided by a rotary push spring is matched, so that a wire clamping plate can firmly clamp the grounding wires, reliable connection is ensured, and the service life of the grounding wires is prolonged. The wire clamping butt joint mechanism forms a safe and reliable connection and separation system through the clamping groove, the stretching-in clamping frame, the rotating frame and other assemblies, the stretching-in clamping frame is automatically locked into the clamping groove under the action of the stretching-in spring, self-locking is achieved, and the connection stability of the down lead and the grounding wire is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field, and more specifically, to a lightning protection device for a medium-wave transmitter. Background Technology

[0002] In the existing lightning protection technology for medium-wave transmitters, the connection method between the down conductor and the grounding conductor generally suffers from low standardization and poor compatibility, making it difficult to adapt to the rapid access requirements of cables of different specifications. Traditional connection devices are usually designed with fixed specifications and can only be adapted to conductors within a specific diameter range, which is inadequate when faced with diverse cable specifications.

[0003] Especially in large-scale transmitter clusters or multi-band transmitters, different diameter down conductors and grounding wires are often used due to differences in transmission power, building structure, and lightning protection level. Existing clamping devices mostly adopt bolt-fixed or single-specification snap-fit ​​designs, lacking effective adjustable mechanisms. When replacing cables of different specifications, it is necessary to replace the entire set of connection devices or perform complex adjustment operations. In this case, technicians need to carry multiple sets of connection devices, which not only increases maintenance costs but also extends installation and maintenance time.

[0004] In existing technologies, the connection stability between the down conductor and the grounding conductor faces severe challenges, especially under harsh environmental conditions. Traditional connection methods mainly rely on bolt tightening or simple mechanical clips, which are prone to loosening due to vibration, temperature changes or corrosion during long-term use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a lightning protection device for medium-wave transmitters to solve the technical problems mentioned in the background art, such as the difficulty in quickly connecting down conductors and grounding wires of different diameters, the difficulty in ensuring the stable connection of down conductors, and the low reliability and anti-interference ability of the lightning protection grounding system.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a lightning protection device for a medium-wave transmitter, comprising a transmitter assembly, a wire clamping mechanism, a wire clamping docking mechanism, and an auxiliary rotating mechanism. The wire clamping mechanism includes a grounding wire, a clamping inner tube, a rotating sleeve, a rotating push block, a rotating push spring, and a wire clamping plate. The rotating sleeve is rotatably mounted on the outer wall of the clamping inner tube, the rotating push block is rotatably mounted on the inner wall of the rotating sleeve, the rotating push spring is mounted between the rotating push block and the outer wall of the clamping inner tube, and the wire clamping plate is mounted on the rotating push block. The push spring pushes the rotary push block, causing the clamping plate to clamp the grounding wire inside the clamping inner tube. The clamping and docking mechanism includes a slope block, a clamping outer tube, a clamping groove, an insertion clamp, a rotating frame, and a spinning plate. The clamping groove is set on the side wall of the clamping inner tube. The insertion clamp is slidably mounted on the side wall of the clamping outer tube. The rotating frame is limited and rotated on the outer wall of the clamping tube. The slope block and the spinning plate are mounted on the rotating frame. The slope block can push the insertion clamp away from the clamping groove, and the spinning plate can press against the insertion clamp to make it extend into the clamping groove.

[0009] The present invention is further configured such that the auxiliary rotation mechanism includes a double-layer clamping ring, a clamping ring, a mating hole, and a bidirectional spring rod. The double-layer clamping ring is fixedly installed on the outer wall of the snap-fit ​​inner tube, the clamping ring is installed on one end of the rotating sleeve, and multiple sets of mating holes are arranged in a ring on the double-layer clamping ring. The clamping ring is limited to rotate within the double-layer clamping ring, and the bidirectional spring rod is installed on the clamping ring. The bidirectional spring rod can extend into the mating hole step by step, so that the rotating sleeve rotates stably on the snap-fit ​​inner tube.

[0010] The present invention is further configured such that a support frame is provided at the top end of the launch pad assembly, and an mounting plate is installed at the bottom end of the support frame. The mounting plate is installed in conjunction with the top end of the launch pad assembly. The support frame provides a stable support platform for the surge arrester, ensuring that the surge arrester is at a suitable height position and enhancing the surge protection effect.

[0011] The present invention is further configured such that an installation sleeve is installed at the top end of the support frame, and a surge arrester is installed on the installation sleeve. The installation sleeve is set at the top of the support frame and is specifically used to fix the surge arrester to ensure that the surge arrester is installed firmly.

[0012] The present invention is further configured such that a down conductor is installed at the bottom end of the surge arrester, and a down tube is installed on the side of the transmitter assembly. The down conductor is located inside the down tube and is connected to the bottom of the surge arrester, providing a flow channel for lightning and is a necessary component for lightning energy conduction.

[0013] The present invention is further configured such that one end of the snap-fit ​​outer tube is connected to the down-lead tube, the snap-fit ​​inner tube can extend into the snap-fit ​​outer tube to connect the grounding wire and the down-lead, the snap-fit ​​inner tube accommodates the grounding wire and serves as the main body of the clamping mechanism, providing a fulcrum for the clamping plate.

[0014] The present invention is further configured such that an extension spring is installed between the snap-fit ​​outer tube and the extension bracket, and the extension spring pushes the extension bracket into the slot, and the extension spring pushes the extension bracket to move towards the slot, so as to ensure automatic locking in the connected state and improve the connection reliability.

[0015] The present invention is further configured such that a fixing block is installed on the side of the launcher assembly, and the down-lead tube is installed on the fixing block. The fixing block is used to fix the down-lead tube to ensure the stability of the down-lead path.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a lightning protection device for medium-wave transmitters, which has the following beneficial effects:

[0018] This utility model features a wire clamping mechanism. Through the ingenious cooperation of a rotating sleeve, a rotary push block, a rotary push spring, and a wire clamping plate, the mechanism achieves adaptive clamping for grounding wires of different diameters. The limiting rotation design of the rotating sleeve, combined with the continuous and stable pressure provided by the rotary push spring, ensures that the wire clamping plate can firmly hold the grounding wire, ensuring reliable connection. This mechanism can adjust the clamping force according to the thickness of the grounding wire, solving the problem that traditional devices are difficult to adapt to different specifications of cables, while ensuring connection stability and improving the reliability of the lightning protection system.

[0019] This utility model is equipped with a wire clamping and docking mechanism. The wire clamping and docking mechanism constitutes a safe and reliable connection and separation system through components such as a slot, an insertion bracket, and a rotating frame. The insertion bracket automatically locks into the slot under the action of the insertion spring, achieving self-locking. At the same time, the slope block and pressure plate design on the rotating frame allow the operator to easily control the connection status. It can not only firmly lock and enhance vibration resistance, but also quickly separate for easy maintenance. This design significantly improves the stability of the connection between the down conductor and the grounding wire, solves the problem of easy loosening in traditional connections, and enhances the reliability of the system in harsh environments.

[0020] This invention incorporates an auxiliary rotation mechanism, which employs a combination design of a double-layer clamping ring, a receiving ring, a mating hole, and a bidirectional spring rod. This design provides precise angle control for the rotating sleeve. The bidirectional spring rod can extend into the annularly arranged mating hole step by step, generating a clear positioning feel and damping effect, thus avoiding problems of excessive or insufficient rotation. This design makes the adjustment of the rotating sleeve more precise and controllable, ensuring that the clamping force of the clamping plate on the grounding wire is moderate. It avoids poor contact due to insufficient clamping and damage to the grounding wire due to excessive clamping, greatly improving the connection quality and service life of the lightning protection grounding system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the surge arrester in this utility model;

[0023] Figure 3 This is a schematic diagram of the wire clamping mechanism, wire clamping docking mechanism, and auxiliary rotation mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the wire clamping and docking mechanism and the auxiliary rotating mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the clamping wire docking mechanism and the auxiliary rotating mechanism in this utility model.

[0026] In the diagram: 1. Launch pad assembly; 2. Grounding wire; 3. Snap-fit ​​inner tube; 4. Rotating sleeve; 5. Rotating push block; 6. Rotating push spring; 7. Wire clamping plate; 8. Snap-fit ​​outer tube; 9. Slot; 10. Insertion bracket; 11. Rotating frame; 12. Spinning plate; 13. Double-layer clamping ring; 14. Clamping ring; 15. Mating hole; 16. Bidirectional spring rod; 17. Support frame; 18. Mounting plate; 19. Mounting sleeve; 20. Lightning arrester; 21. Down conductor; 22. Down conductor tube; 23. Insertion spring; 24. Fixing block; 25. Slope block. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5The lightning protection device for a medium-wave transmitter includes a transmitter assembly 1, a wire clamping mechanism, a wire clamping docking mechanism, and an auxiliary rotating mechanism. The wire clamping mechanism includes a grounding wire 2, a clamping inner tube 3, a rotating sleeve 4, a rotary push block 5, a rotary push spring 6, and a wire clamping plate 7. The rotating sleeve 4 is rotatably mounted on the outer wall of the clamping inner tube 3. The rotary push block 5 is rotatably mounted on the inner wall of the rotating sleeve 4. The rotary push spring 6 is installed between the rotary push block 5 and the outer wall of the clamping inner tube 3. The wire clamping plate 7 is mounted on the rotary push block 5, and the rotary push spring 6 pushes the rotary push block 5, causing the wire clamping plate 7 to clamp the wire inside the clamping inner tube 3. The grounding wire 2 is clamped. The clamping and docking mechanism includes a slope block 101, a snap-fit ​​outer tube 8, a snap-fit ​​groove 9, an insertion clip 10, a rotating frame 11, and a spinning plate 12. The snap-fit ​​groove 9 is set on the side wall of the snap-fit ​​inner tube 3. The insertion clip 10 is slidably mounted on the side wall of the snap-fit ​​outer tube 8. The rotating frame 11 is limited and rotated on the outer wall of the snap-fit ​​tube. The slope block 101 and the spinning plate 12 are mounted on the rotating frame 11. The slope block 101 can push the insertion clip 10 away from the snap-fit ​​groove 9, and the spinning plate 12 can press against the insertion clip 10 so that it extends into the snap-fit ​​groove 9.

[0031] In this embodiment, the clamping mechanism controls the clamping degree of the grounding wire 2 by rotating the rotating sleeve 4, enabling rapid connection of the down conductor 21 and the grounding wire 2. When the rotating sleeve 4 rotates, it drives the rotating push block 5 to move. The rotating push spring 6 generates pressure between the rotating push block 5 and the outer wall of the snap-fit ​​inner tube 3. Under the pushing force of the rotating push spring 6, the clamping plate 7 on the rotating push block 5 clamps and fixes the grounding wire 2 inside the snap-fit ​​inner tube 3, ensuring good contact of the grounding wire 2 and providing a reliable channel for lightning current conduction. The mechanism enables the safe connection and separation of the inner tube 3 and the outer tube 8. When connection is required, the insertion bracket 10 extends into the slot 9 on the side wall of the inner tube 3 under the action of the insertion spring 23, thus achieving a fixed connection between the two tubes. When separation is required, the rotating frame 11 is rotated, and the slope block 101 on it pushes the insertion bracket 10 away from the slot 9, thus releasing the locking state. The swivel plate 12 can press against the insertion bracket 10 when a reinforced connection is required, making it extend more firmly into the slot 9 and enhancing the reliability of the connection.

[0032] The auxiliary rotation mechanism includes a double-layer clamping ring 13, a clamping ring 14, mating holes 15, and a bidirectional spring rod 16. The double-layer clamping ring 13 is fixedly installed on the outer wall of the snap-fit ​​inner tube 3. The clamping ring 14 is installed on one end of the rotating sleeve 4. Multiple sets of mating holes 15 are arranged in a ring on the double-layer clamping ring 13. The clamping ring 14 is limited to rotate within the double-layer clamping ring 13. The bidirectional spring rod 16 is installed on the clamping ring 14. The bidirectional spring rod 16 can extend into the mating holes 15 step by step, so that the rotating sleeve 4 can rotate stably on the snap-fit ​​inner tube 3.

[0033] In this embodiment, the clamping ring 14 is installed at one end of the rotating sleeve 4 and is limited to rotating within the double-layer clamping ring 13. When rotating, the bidirectional spring rod 16 on the clamping ring 14 can extend into the annular mating hole 15 on the double-layer clamping ring 13 step by step, generating a clear positioning feeling, so that the rotating sleeve 4 can rotate on the snap-fit ​​inner tube 3 at a stable angle, avoiding excessive or insufficient rotation, and ensuring that the clamping force of the clamping plate 7 on the grounding wire 2 is moderate.

[0034] Please see Figures 1-5 As a supplementary embodiment of the lightning protection device for a medium-wave transmitter, which includes a clamping mechanism, a clamping docking mechanism, and an auxiliary rotating mechanism: A support frame 17 is provided at the top end of the transmitter assembly 1, and a mounting plate 18 is installed at the bottom end of the support frame 17. The mounting plate 18 is fitted onto the top end of the transmitter assembly 1. A mounting sleeve 19 is installed at the top end of the support frame 17, and a lightning arrester 20 is installed on the mounting sleeve 19. A down conductor 21 is installed at the bottom end of the lightning arrester 20. A down-lead tube 22 is installed on the side of component 1, and a down-lead wire 21 is set inside the down-lead tube 22. One end of the snap-fit ​​outer tube 8 is connected to the down-lead tube 22. The snap-fit ​​inner tube 3 can extend into the snap-fit ​​outer tube 8 to connect the grounding wire 2 to the down-lead wire 21. An extension spring 23 is installed between the snap-fit ​​outer tube 8 and the extension bracket 10, and the extension spring 23 pushes the extension bracket 10 into the slot 9. A fixing block 24 is installed on the side of the launch pad assembly 1, and the down-lead tube 22 is fitted onto the fixing block 24.

[0035] More specifically, when lightning strikes the surge arrester 20, the current is conducted through the surge arrester 20, the down conductor 21, and the down tube 22. Then, it passes through the clamping outer tube 8 and the clamping inner tube 3 connected by the clamping mechanism. The grounding wire 2 inside the clamping inner tube 3 is firmly clamped by the clamping mechanism, which facilitates the quick connection of the down conductor 21 inside the clamping outer tube 8 with the grounding wire 2 inside the clamping inner tube 3, ensuring that the current can be safely conducted to the ground and completing the lightning protection. During equipment maintenance, the clamping mechanism can be unlocked by the slope block 101 on the rotating frame 11, separating the clamping inner tube 3 and the clamping outer tube 8, which facilitates the inspection and replacement of the grounding wire 2. The rotating sleeve 4 of the clamping mechanism can adjust the clamping force of the grounding wire 2, while the auxiliary rotating mechanism ensures that the adjustment process is precise and controllable. The entire device forms a complete lightning protection system to ensure the safe operation of the medium wave transmitter.

[0036] In summary, during the use or operation of the overall equipment: when the clamping mechanism is required to operate, the clamping mechanism controls the clamping degree of the grounding wire 2 by rotating the rotating sleeve 4, so as to realize the quick connection between the down conductor 21 and the grounding wire 2. When the rotating sleeve 4 rotates, it drives the rotating push block 5 to move. The rotating push spring 6 generates pressure between the rotating push block 5 and the outer wall of the clamping inner tube 3. Under the pushing force of the rotating push spring 6, the clamping plate 7 on the rotating push block 5 clamps and fixes the grounding wire 2 in the clamping inner tube 3, ensuring good contact of the grounding wire 2 and providing a reliable channel for lightning current diversion.

[0037] When the clamping and docking mechanism is in operation, it enables the safe connection and separation of the clamping inner tube 3 and the clamping outer tube 8. When connection is required, the insertion clamp 10 extends into the clamping groove 9 on the side wall of the clamping inner tube 3 under the action of the insertion spring 23, realizing the fixed connection of the two tubes. When separation is required, the rotating frame 11 is rotated, and the slope block 101 on it pushes the insertion clamp 10 away from the clamping groove 9, releasing the locking state. The spinning plate 12 can press against the insertion clamp 10 when the connection needs to be reinforced, so that it extends more firmly into the clamping groove 9, enhancing the reliability of the connection.

[0038] When the auxiliary rotating mechanism is required to operate, the clamping ring 14 is installed at one end of the rotating sleeve 4 and is limited to rotating within the double-layer clamping ring 13. During rotation, the bidirectional spring rod 16 on the clamping ring 14 can extend into the annular mating hole 15 on the double-layer clamping ring 13 step by step, generating a clear positioning feeling, so that the rotating sleeve 4 can rotate on the snap-fit ​​inner tube 3 at a stable angle, avoiding over- or under-rotation, and ensuring that the clamping force of the clamping plate 7 on the grounding wire 2 is moderate.

[0039] When lightning strikes the surge arrester 20, the current is conducted through the surge arrester 20, the down conductor 21, and the down tube 22. Then, it passes through the clamping outer tube 8 and the clamping inner tube 3 connected by the clamping mechanism. The grounding wire 2 inside the clamping inner tube 3 is firmly clamped by the clamping mechanism, which facilitates the quick connection of the down conductor 21 inside the clamping outer tube 8 with the grounding wire 2 inside the clamping inner tube 3, ensuring that the current can be safely conducted to the ground and completing the lightning protection. During equipment maintenance, the clamping mechanism can be unlocked by the slope block 101 on the rotating frame 11, separating the clamping inner tube 3 and the clamping outer tube 8, which facilitates the inspection and replacement of the grounding wire 2. The rotating sleeve 4 of the clamping mechanism can adjust the clamping force of the grounding wire 2, while the auxiliary rotating mechanism ensures that the adjustment process is precise and controllable. The entire device forms a complete lightning protection system to ensure the safe operation of the medium wave transmitter.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device for a medium-wave transmitter, comprising a transmitter assembly (1), a wire clamping mechanism, a wire clamping docking mechanism, and an auxiliary rotating mechanism, characterized in that: The clamping mechanism includes a grounding wire (2), a snap-fit ​​inner tube (3), a rotating sleeve (4), a rotary push block (5), a rotary push spring (6), and a clamping plate (7). The rotating sleeve (4) is rotatably mounted on the outer wall of the snap-fit ​​inner tube (3). The rotary push block (5) is rotatably mounted on the inner wall of the rotating sleeve (4). The rotary push spring (6) is mounted between the rotary push block (5) and the outer wall of the snap-fit ​​inner tube (3). The clamping plate (7) is mounted on the rotary push block (5), and the rotary push spring (6) pushes the rotary push block (5) so that the clamping plate (7) clamps the grounding wire (2) inside the snap-fit ​​inner tube (3). The clamping connection mechanism includes a slope block. (101), snap-fit ​​outer tube (8), snap-fit ​​groove (9), insert snap-fit ​​bracket (10), rotating bracket (11) and spinning plate (12), the snap-fit ​​groove (9) is set on the side wall of the snap-fit ​​inner tube (3), the insert snap-fit ​​bracket (10) is slidably installed on the side wall of the snap-fit ​​outer tube (8), the rotating bracket (11) is limited to rotate and installed on the outer wall of the snap-fit ​​tube, the slope block (101) and the spinning plate (12) are installed on the rotating bracket (11), the slope block (101) can push the insert snap-fit ​​bracket (10) away from the snap-fit ​​groove (9), and the spinning plate (12) can press against the insert snap-fit ​​bracket (10) to make it extend into the snap-fit ​​groove (9).

2. The lightning protection device for a medium-wave transmitter according to claim 1, characterized in that: The auxiliary rotation mechanism includes a double-layer clamping ring (13), a clamping ring (14), a mating hole (15), and a bidirectional spring rod (16). The double-layer clamping ring (13) is fixedly installed on the outer wall of the snap-fit ​​inner tube (3). The clamping ring (14) is installed on one end of the rotating sleeve (4). Multiple sets of mating holes (15) are arranged in a ring on the double-layer clamping ring (13). The clamping ring (14) is limited to rotate within the double-layer clamping ring (13). The bidirectional spring rod (16) is installed on the clamping ring (14). The bidirectional spring rod (16) can extend into the mating hole (15) step by step, so that the rotating sleeve (4) rotates stably on the snap-fit ​​inner tube (3).

3. The lightning protection device for medium-wave transmitters according to claim 1, characterized in that: The top end of the launch pad assembly (1) is provided with a support frame (17), and the bottom end of the support frame (17) is provided with an mounting plate (18), and the mounting plate (18) is installed in conjunction with the top end of the launch pad assembly (1).

4. The lightning protection device for a medium-wave transmitter according to claim 3, characterized in that: The top end of the support frame (17) is provided with an installation sleeve (19), and a surge arrester (20) is installed on the installation sleeve (19).

5. The lightning protection device for a medium-wave transmitter according to claim 4, characterized in that: The lightning arrester (20) is provided with a down conductor (21) at its bottom end, and the launcher assembly (1) is provided with a down tube (22) on its side, with the down conductor (21) located inside the down tube (22).

6. The lightning protection device for a medium-wave transmitter according to claim 5, characterized in that: One end of the snap-fit ​​outer tube (8) is connected to the down-lead tube (22), and the snap-fit ​​inner tube (3) can extend into the snap-fit ​​outer tube (8) to connect the grounding wire (2) to the down-lead wire (21).

7. The lightning protection device for a medium-wave transmitter according to claim 1, characterized in that: An extension spring (23) is installed between the snap-fit ​​outer tube (8) and the extension bracket (10), and the extension spring (23) pushes the extension bracket (10) into the slot (9).

8. The lightning protection device for a medium-wave transmitter according to claim 5, characterized in that: A fixing block (24) is installed on the side of the launch pad assembly (1), and the downpipe (22) is installed on the fixing block (24).

Images