Detachable lightning arrester

Abstract

The utility model relates to the technical field of lightning arresters, in particular to a detachable lightning arrester which comprises a mounting seat, a side plate is fixedly connected to the right end of the mounting seat, four alarms are fixedly connected to the upper end of the side plate, threaded holes are formed in the upper portion of the front end and the upper portion of the rear end of the mounting seat, a connecting block is connected to the upper end of the mounting seat in a clamped mode, and the alarms are connected with the connecting block in a clamped mode. L-shaped connecting plates are fixedly connected to the front portion and the rear portion of the outer surface of the connecting block, screws are connected to the outer side faces of the two L-shaped connecting plates in a threaded mode, a protective shell is connected to the interior of the connecting block in a threaded mode, a lightning arrester body movably sleeves the inner wall face of the protective shell, an insulating block is fixedly connected to the upper end of the lightning arrester body, and the insulating block is fixedly connected to the lower end of the lightning arrester body. A current transformer is fixedly installed on the outer surface of the insulating block, and the upper end of the insulating block is fixedly connected with an upper connector lug. According to the detachable lightning arrester disclosed by the utility model, the detachable structure is arranged, so that the time is greatly saved, and the design also facilitates the subsequent maintenance work.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arresters, in particular to a detachable lightning arrester. Background Art

[0002] Arrester: An electrical device used to protect electrical equipment from high transient overvoltage hazards during lightning strikes, and to limit the follow-on time, and often also the follow-on amplitude. Lightning arresters are sometimes also called overvoltage protectors and overvoltage limiters. Usually, lightning arresters are also installed on utility poles or brackets at the top of utility poles.

[0003] However, the existing lightning arresters still have the following shortcomings: 1. Traditional lightning arresters are inconvenient to install and disassemble, requiring more professional skills and tools, taking a long time, and difficult to maintain; 2. In existing devices, the abnormal state of the lightning arrester cannot be discovered in time, resulting in the possibility of further expansion of the fault, causing a wider range of impacts and losses, such as damage to other equipment; 3. In the existing technology, the lightning arrester is easily damaged by various external factors, such as mechanical collisions, resulting in its performance degradation or even failure, increasing the possibility of personnel contacting the lightning arrester and the probability of causing safety accidents. Therefore, we propose a detachable lightning arrester. Utility Model Content

[0004] The main purpose of the utility model is to provide a detachable lightning arrester, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A detachable lightning arrester comprises a mounting seat, the right end of the mounting seat is fixedly connected to a side plate, the upper end of the side plate is fixedly connected to four alarms, the upper front end and the upper rear end of the mounting seat are provided with threaded holes, the upper end of the mounting seat is clamped with a connecting block, the outer front and rear ends of the connecting block are fixedly connected to L-shaped connecting plates, the outer side surfaces of the two L-shaped connecting plates are threadedly connected to screws, the connecting block is internally threaded with a protective shell, the inner wall of the protective shell is movably sleeved with a lightning arrester body, the upper end of the lightning arrester body is fixedly connected to an insulating block, a current transformer is fixedly mounted on the outer surface of the insulating block, and the upper end of the insulating block is fixedly connected to an upper terminal.

[0007] Preferably, the two threaded holes are matched with the two screws, and the connecting block is clamped to the upper end of the mounting seat through two L-shaped connecting plates and two screws.

[0008] Preferably, the four alarms are distributed at equal distances in pairs.

[0009] Preferably, the four alarms are electrically connected to the current transformer.

[0010] Preferably, a threaded groove matching the connecting block is provided at the lower end of the protective shell.

[0011] Preferably, the two threaded holes, the two L-shaped connecting plates and the two screws are distributed in a front-to-back mirror image.

[0012] Preferably, a through hole having a diameter consistent with that of the arrester body is provided in the protective shell, and the arrester body is arranged in the through hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, a detachable structure is provided, and the connection block and the mounting seat are matched, and screws are used for fixing and disassembly, so that installation and disassembly are relatively simple and quick, and do not require overly complicated operations and a large number of professional tools, which greatly saves time. At the same time, this design also facilitates subsequent maintenance work, and the lightning arrester can be quickly disassembled for inspection or replacement.

[0015] 2. In the utility model, by providing a current transformer and an alarm electrically connected thereto, the current transformer can monitor the current condition of the lightning arrester in real time. Once an abnormal current change occurs, the signal can be transmitted to the alarm in time, and the alarm will immediately sound an alarm, thereby realizing timely discovery of the abnormal state of the lightning arrester. Timely alarm reminders help staff to take countermeasures quickly, reduce fault handling time, and better protect the entire system to prevent damage to other equipment due to lightning arrester failure.

[0016] 3. In the utility model, the lightning arrester can be wrapped up by providing a protective shell to isolate external environmental factors, such as dust, moisture, etc., to prevent them from corroding the internal components of the lightning arrester, extend the service life of the lightning arrester, and reduce the probability of direct contact between personnel and the lightning arrester, thereby reducing the risk of safety accidents, enhancing the safety and stability of the lightning arrester, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a detachable lightning arrester of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a side plate and an alarm light of a detachable lightning arrester of the utility model;

[0019] Figure 3 This is a structural schematic diagram of an L-shaped connecting plate connection of a detachable lightning arrester of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the structure of the protective shell of a detachable lightning arrester being split and connected.

[0021] In the figure: 1. Mounting base; 2. Side panel; 3. Alarm; 4. Threaded hole; 5. Connection block; 6. L-shaped connection plate; 7. Screw; 8. Protective shell; 9. Lightning arrester body; 10. Insulation block; 11. Current transformer; 12. Upper terminal. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-4 , the utility model provides a technical solution:

[0026] A detachable lightning arrester comprises a mounting base 1, a side plate 2 is fixedly connected to the right end of the mounting base 1, four alarms 3 are fixedly connected to the upper end of the side plate 2, threaded holes 4 are provided at the upper front end and the upper rear end of the mounting base 1, a connecting block 5 is clamped at the upper end of the mounting base 1, an L-shaped connecting plate 6 is fixedly connected to the outer front and rear ends of the connecting block 5, screws 7 are threadedly connected to the outer sides of the two L-shaped connecting plates 6, a protective shell 8 is internally threadedly connected to the connecting block 5, an arrester body 9 is movably sleeved on the inner wall of the protective shell 8, an insulating block 10 is fixedly connected to the upper end of the arrester body 9, a current transformer 11 is fixedly mounted on the outer surface of the insulating block 10, and an upper terminal 12 is fixedly connected to the upper end of the insulating block 10.

[0027] In this embodiment, the two threaded holes 4 are adapted to the two screws 7, and the connecting block 5 is clamped to the upper end of the mounting base 1 through two L-shaped connecting plates 6 and two screws 7. Through the cooperation of the screws 7 and the threaded holes 4, the connecting block 5 can be quickly fixed to the mounting base 1, which is also convenient for disassembly and maintenance when necessary, and this clamping method can provide a stable connection to ensure that the connecting block 5 will not loosen or shake on the mounting base 1, thereby ensuring the normal operation of the lightning arrester; the four alarms 3 are distributed at equal distances in pairs. When an abnormal situation occurs, the evenly distributed alarms 3 can sound the alarm at the same time, so that the staff can quickly locate the problem and take corresponding measures to reduce the scope and duration of the fault; the four alarms 3 are electrically connected to the current transformer 11, and the electrical connection enables the alarm 3 to respond quickly to the small current changes detected by the current transformer 11, thereby improving the monitoring sensitivity, which helps to detect the initial fault of the lightning arrester in time and reduce potential losses; the protective shell The lower end of 8 is provided with a threaded groove that is compatible with the connecting block 5. The threaded connection method makes the installation and disassembly of the protective shell 8 relatively simple. When the protective shell 8 needs to be installed, it only needs to be screwed into the connecting block 5. When the protective shell 8 needs to be removed for maintenance or replacement of the lightning arrester, it can also be easily rotated and removed; the two threaded holes 4, the two L-shaped connecting plates 6 and the two screws 7 are all distributed in front and back mirror images. This distribution method can make the connecting block 5 subject to uniform force during installation, avoiding the situation of excessive local force, thereby improving the stability and reliability of the connection; a through hole with the same diameter as the lightning arrester body 9 is provided in the protective shell 8, and the lightning arrester body 9 is arranged in the through hole. The diameter of the through hole is consistent with the diameter of the lightning arrester body 9, ensuring that the lightning arrester body 9 can be tightly installed in the protective shell 8, reducing the possibility of shaking and loosening, and improving the overall stability. The protective shell 8 is usually made of insulating material, which can provide good insulation performance, prevent current leakage and electric shock hazards, and ensure the safety of the operator.

[0028] It should be noted that the utility model is a detachable lightning arrester. During specific use, the lightning arrester body 9 is installed in the protective shell 8, and the protective shell 8 is fixed by a threaded connection with the connecting block 5. The connecting block 5 is fixed to the mounting base 1 by an L-shaped connecting plate 6 and a screw 7. When the lightning arrester body 9 works normally, the current transformer 11 monitors the current in real time. Once the lightning arrester body 9 is in an abnormal state and the current changes, the current transformer 9 will transmit a signal to the alarm 3, and the alarm 3 will immediately sound an alarm to remind relevant personnel to promptly discover the abnormal situation of the lightning arrester. At the same time, the protective shell 8 plays a role in physical protection and environmental isolation of the lightning arrester body 9, reducing the impact of external factors on it. This detachable structural design facilitates installation, disassembly and maintenance operations. The cooperation of the screw 7 and the threaded hole 4 and the connection of the connecting block 5 and the mounting base 1 can achieve convenient assembly and disassembly.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A detachable lightning arrester, comprising a mounting seat (1), characterized in that: The right end of the mounting seat (1) is fixedly connected to a side plate (2), and the upper end of the side plate (2) is fixedly connected to four alarms (3). The upper front end and the upper rear end of the mounting seat (1) are both provided with threaded holes (4). The upper end of the mounting seat (1) is clamped with a connecting block (5), and the outer front and rear ends of the connecting block (5) are both fixedly connected to L-shaped connecting plates (6). The outer side surfaces of the two L-shaped connecting plates (6) are both threadedly connected to screws (7). The connecting block (5) is internally threadedly connected to a protective shell (8), and the inner wall surface of the protective shell (8) is movably sleeved with a lightning arrester body (9). The upper end of the lightning arrester body (9) is fixedly connected to an insulating block (10), and a current transformer (11) is fixedly mounted on the outer surface of the insulating block (10). The upper end of the insulating block (10) is fixedly connected to an upper terminal (12).

2. A detachable lightning arrester according to claim 1, characterized in that: The two threaded holes (4) are matched with the two screws (7), and the connecting block (5) is clamped on the upper end of the mounting seat (1) through two L-shaped connecting plates (6) and two screws (7).

3. A detachable lightning arrester according to claim 1, characterized in that: The four alarms (3) are distributed at equal distances in pairs.

4. A detachable lightning arrester according to claim 1, characterized in that: The four alarms (3) are electrically connected to the current transformer (11).

5. A detachable lightning arrester according to claim 1, characterized in that: The lower end of the protective shell (8) is provided with a threaded groove adapted to the connecting block (5).

6. A detachable lightning arrester according to claim 1, characterized in that: The two threaded holes (4), the two L-shaped connecting plates (6) and the two screws (7) are all distributed in a front-to-back mirror image.

7. A detachable lightning arrester according to claim 1, characterized in that: A through hole having a diameter consistent with that of the arrester body (9) is provided in the protective shell (8), and the arrester body (9) is arranged in the through hole.

Images