Lightning arrester for power transmission tower

Abstract

The utility model relates to the technical field of lightning arresters, and discloses a power transmission tower lightning arrester, which comprises a first lightning arrester body, the bottom of the first lightning arrester body is fixedly connected with a connecting block, the first lightning arrester body is connected with a second lightning arrester body through the connecting block, the outside of the connecting block is fixedly connected with an L-shaped bottom plate, and the L-shaped bottom plate is fixedly connected with the bottom of the first lightning arrester body. A fixing mechanism is arranged on one side of the L-shaped bottom plate, and a protection assembly is arranged in the fixing mechanism. The fixing mechanism comprises a first fixing plate, and the top of the first fixing plate is fixedly connected to the bottom of the L-shaped bottom plate. According to the utility model, the second lightning protection body is tightly attached through the first fixing plate and the second fixing plate. And the connecting part of the lightning protection body can be firmly fixed regardless of strong wind whistling or tower vibration. The stability of connection between the lightning protection device and the electric pole tower is greatly enhanced, it is guaranteed that an electric power transmission line is continuously under reliable lightning protection, and the risk of electric power accidents caused by faults of the lightning protection device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lightning arrester technical field especially relates to a kind of lightning arrester of transmission tower. BACKGROUND

[0002] With the continuous expansion of modern power system scale and the continuous evolution of technology, the key support role of transmission tower in power transmission network is increasingly highlighted. It is widely distributed in various geographical environments and bears the heavy responsibility of long-distance and large-capacity power transmission. However, in the areas where thunderstorms are frequent, transmission towers are facing serious lightning threats. When lightning strikes the transmission tower, the instantaneous huge energy can cause overvoltage and overcurrent phenomena. These abnormal power parameters are conducted along the transmission line, which can easily cause damage to the structural integrity of the tower itself, such as burning the tower material, structural deformation or even collapse. At the same time, the connected power equipment such as transformers and insulators is also difficult to escape, and is prone to problems such as insulation breakdown and equipment failure, which can cause large-scale power outages, seriously interfere with the stability and safety of power supply, and bring many inconveniences and huge economic losses to social production and life.

[0003] Currently, in order to cope with the lightning risk of transmission tower, the industry has adopted various lightning protection technologies and devices. The common lightning protection method is to install traditional lightning protection equipment with lightning conductor. The lightning conductor is mainly erected above the tower to protect the towers in a certain area, but in the case of lightning impact and other special circumstances, the tower may still be struck by lightning.

[0004] The existing lightning protection device is prone to looseness or displacement at the connection part. For example, under the action of strong wind, the lightning protection body is simply connected by bolts, which cannot provide enough clamping force and stability, resulting in gaps or relative displacement between the lightning protection bodies. This not only reduces the lightning protection effect and cannot effectively protect the transmission tower and line, but also produces safety hazards such as electric sparks due to loose connection, which seriously threatens the safe operation of power system. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a lightning arrester for transmission tower, which aims to improve the problem that the lightning protection body is connected by bolts in the prior art, which cannot provide enough clamping force and stability, resulting in gaps or relative displacement between the lightning protection bodies.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a lightning arrester of power transmission tower, first lightning body is fixedly connected with the connecting block in the bottom of first lightning body, first lightning body is connected with second lightning body through connecting block, the L-shaped bottom plate is fixedly connected outside the connecting block, the fixed mechanism is arranged on one side of L-shaped bottom plate, and the protection assembly is arranged in the fixed mechanism.

[0007] As a further description of the above technical scheme:

[0008] The connecting assembly includes the abutment plate, the abutment plate is rotatably connected on the side of the L-shaped bottom plate away from the first fixed plate, the second fixed plate is fixedly connected on the top of the abutment plate, the second side plate is fixedly connected on the two sides of the second fixed plate respectively, and the first adjusting bolt is externally threaded with the first nut in the second side plate.

[0009] As a further description of the above technical scheme:

[0010] The protection assembly includes a plurality of springs, the first fixed plate is internally provided with a cavity, one end of the plurality of springs is fixedly connected to the inner wall of the cavity, and the other end of the spring is fixedly connected with one of the wear plates.

[0011] As a further description of the above technical scheme:

[0012] The first fixed plate and the second fixed plate are oppositely arranged, the first fixed plate and the second fixed plate are arranged in an arc shape, and the other wear plate is installed on the top of the second fixed plate.

[0013] As a further description of the above technical scheme:

[0014] One end of the second lightning body is installed in the connecting block through the second adjusting bolt, and the second adjusting bolt is externally threaded with the second nut.

[0015] As a further description of the above technical scheme:

[0016] The wear plate is externally attached to the second lightning body.

[0017] As a further description of the above technical scheme:

[0018] The second adjusting bolt is externally provided with a plurality of anti-skid grooves.

[0019] As a further description of the above technical scheme:

[0020] The second lightning protection body is provided with a ground wire at one end away from the first lightning protection body.

[0021] The utility model has the advantages of the following:

[0022] 1、The utility model discloses a first adjusting bolt and first nut are used for tightly attaching first fixed plate and second fixed plate outside second lightning protection body, realize the close clamping and accurate positioning of the connecting place of first lightning protection body and second lightning protection body, effectively prevent displacement or loosening under various complex environmental conditions (such as strong wind, vibration, etc.), guarantee the stability of lightning protection equipment and pole tower connection.

[0023] 2、The utility model discloses a wear plate in the protection assembly is tightly attached to the outside of second lightning protection body under the elastic force of spring, avoids the damage of second lightning protection body due to rigid collision or excessive stress, further enhances the anti -power ability of lightning protection equipment, guarantees normal operation under the complex and changeable external environment. DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic view of a lightning arrester for a power transmission tower provided by the utility model;

[0025] Figure 2 It is a structural schematic view of a first lightning protection body of a lightning arrester for a power transmission tower provided by the utility model;

[0026] Figure 3 It is an enlarged view of A of the utility model; Figure 1

[0027] Figure 4 It is an enlarged view of B of the utility model; Figure 2

[0028] It is a first fixed plate sectional view of a first lightning protection body of a lightning arrester for a power transmission tower provided by the utility model. Figure 5 Legend:

[0029] 1、First lightning protection body;2、Connecting block;3、L-shaped bottom plate;4、Fixed mechanism;41、First fixed plate;42、First side plate;43、First adjusting bolt;44、Cavity;5、Connecting assembly;51、Linking plate;52、Second fixed plate;53、Second side plate;54、First nut;6、Protection assembly;61、Spring;62、Wear plate;7、Second lightning protection body;8、Ground wire;9、Second adjusting bolt;10、Second nut.

[0030] DETAILED DESCRIPTION

[0031] ​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figures 1-3 The utility model provides an embodiment: a lightning arrester of power transmission tower, first lightning body 1 is fixedly connected with connecting block 2 at the bottom, first lightning body 1 is connected with second lightning body 7 through connecting block 2, L shaped bottom plate 3 is fixedly connected outside connecting block 2, fixed mechanism 4 is arranged on one side of L shaped bottom plate 3, and protection assembly 6 is arranged in fixed mechanism 4;Fixed mechanism 4 includes first fixed plate 41, and first fixed plate 41 is fixedly connected at the bottom of L shaped bottom plate 3, and first side plate 42 is fixedly connected on both sides outside first fixed plate 41, and first side plate 42 is used to connect first fixed plate 41 and second fixed plate 52. First adjusting bolt 43 is rotatably connected in first side plate 42, and the distance between first fixed plate 41 and second fixed plate 52 can be controlled by rotating first adjusting bolt 43. First fixed plate 41 bottom is provided with connecting assembly 5.

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figures 3-4 Connecting assembly 5 includes abutment plate 51, and abutment plate 51 is rotatably connected on the side of L shaped bottom plate 3 away from first fixed plate 41, and the position of abutment plate 51 can be conveniently adjusted by rotating abutment plate 51, so that abutment plate 51 is better matched with first fixed plate 41. Second fixed plate 52 is fixedly connected on the top of abutment plate 51, and second fixed plate 52 is opposite to first fixed plate 41, and second lightning body 7 can be further fixed.

[0034] Second side plate 53 is fixedly connected on both sides outside second fixed plate 52, and first nut 54 is threadedly connected in second side plate 53 outside first adjusting bolt 43, so that the distance between first fixed plate 41 and second fixed plate 52 can be controlled. In the installation process, the distance between first fixed plate 41 and second fixed plate 52 can be adjusted by tightening or loosening first nut 54, so that first fixed plate 41 and second fixed plate 52 can be closely attached to the outside of second lightning body 7, and second lightning body 7 can be effectively clamped and positioned.

[0035] The second lightning protection body 7 is installed at one end in the connecting block 2 through the second adjusting bolt 9, and the second lightning protection body 7 is firmly fixed in the connecting block 2 by the fastening effect of the second adjusting bolt 9. The second adjusting bolt 9 is externally threadedly connected with the second nut 10, and by tightening the second nut 10, the fixing of the second adjusting bolt 9 to the second lightning protection body 7 is more firm, effectively preventing the second adjusting bolt 9 from loosening due to vibration and other factors during long-term operation. A plurality of anti-skid grooves are formed on the outside of the second adjusting bolt 9, which facilitates the operator to turn.

[0036] Referring to Figure 5 The protection assembly 6 comprises a plurality of springs 61, and a cavity 44 is formed in the first fixed plate 41. The cavity 44 provides installation space for the springs 61. One end of the plurality of springs 61 is fixedly connected to the inner wall of the cavity 44, and the other end of the spring 61 is fixedly connected with one of the wear-resistant plates 62. The wear-resistant plate 62 can be tightly attached to the outside of the second lightning protection body 7 under the elastic force of the spring 61.

[0037] The first fixed plate 41 is arranged opposite to the second fixed plate 52, and the first fixed plate 41 and the second fixed plate 52 are arranged in an arc shape. The arc-shaped arrangement can better fit the contour of the second lightning protection body 7, so that the second lightning protection body 7 can be surrounded from multiple directions during the fixing and protection process. Another wear-resistant plate 62 is installed on the top of the second fixed plate 52, and the wear-resistant plate 62 is attached to the outside of the second lightning protection body 7. The second lightning protection body 7 is installed with a ground wire 8 at the end away from the first lightning protection body 1, and then the current is safely introduced into the ground through the ground wire 8, thereby effectively protecting the power transmission tower and related power equipment from lightning damage and ensuring the safe and stable operation of the power system.

[0038] Working principle: first, install the first lightning protection body 1 on the electric pole tower, then install one end of the second lightning protection body 7 in the connecting block 2 through the second adjusting bolt 9, at this time, rotate the connecting plate 51 upward, so that the first fixed plate 41 and the second fixed plate 52 are attached to the outside of the second lightning protection body 7 connected to one end of the first lightning protection body 1, then pass the first adjusting bolt 43 through the inside of the first side plate 42 and the second side plate 53 respectively, and rotate the first nut 54 outside the first adjusting bolt 43, so that the first fixed plate 41 and the second fixed plate 52 are tightly attached to the outside of the second lightning protection body 7, thereby tightly clamping and positioning the second lightning protection body 7, effectively preventing the connection between the first lightning protection body 1 from being stable under various environmental conditions;

[0039] Secondly, the spring 61 in the first fixed plate 41 is tightly attached to the outside of the second lightning protection body 7 under the elastic force of the spring 61 after the fixing mechanism 4 clamps and fixes the second lightning protection body 7. The abrasion caused by the friction between the fixing mechanism 4 and the second lightning protection body 7 is reduced.

[0040] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A lightning arrester for a power transmission tower, comprising a first lightning arrester body (1), characterized in that: The bottom of the first lightning protection body (1) is fixedly connected with a connecting block (2), the first lightning protection body (1) is connected with the second lightning protection body (7) through the connecting block (2), the connecting block (2) is fixedly connected with an L-shaped bottom plate (3) outside, one side of the L-shaped bottom plate (3) is provided with a fixing mechanism (4), and the fixing mechanism (4) is provided with a protection assembly (6) inside; the fixing mechanism (4) comprises a first fixed plate (41), the top of the first fixed plate (41) is fixedly connected with the bottom of the L-shaped bottom plate (3), and the outer sides of the first fixed plate (41) are fixedly connected with first side plates (42); the first fixed plate (41) is provided with a connecting assembly (5) at the bottom.

2. The lightning arrester for a power transmission tower according to claim 1, characterized in that: The connecting assembly (5) comprises a connecting plate (51), the connecting plate (51) is rotatably connected to the side of the L-shaped bottom plate (3) away from the first fixed plate (41), the top of the connecting plate (51) is fixedly connected with a second fixed plate (52), the outer sides of the second fixed plate (52) are fixedly connected with second side plates (53) respectively, and the outer sides of the first adjusting bolts (43) are threadedly connected with first nuts (54) penetrating through the inner sides of the second side plates (53).

3. The lightning rod according to claim 1, wherein: The protection assembly (6) comprises a plurality of springs (61), a cavity (44) is formed in the first fixed plate (41), one end of each spring (61) is fixedly connected to the inner wall of the cavity (44), and the other end of the spring (61) is fixedly connected with one of the wear-resistant plates (62).

4. The lightning rod according to claim 3, wherein: The first fixed plate (41) and the second fixed plate (52) are arranged oppositely, the first fixed plate (41) and the second fixed plate (52) are arranged in an arc shape, and the other wear-resistant plate (62) is installed on the top of the second fixed plate (52).

5. The lightning rod according to claim 1, wherein: One end of the second lightning protection body (7) is installed in the connecting block (2) through a second adjusting bolt (9), and the outer side of the second adjusting bolt (9) is threadedly connected with a second nut (10).

6. The lightning rod according to claim 3, wherein: The outer side of the wear-resistant plate (62) is attached to the outer side of the second lightning protection body (7).

7. The lightning rod according to claim 5, wherein: A plurality of anti-skid grooves are formed in the outer side of the second adjusting bolt (9).

8. The transmission tower lightning arrester of claim 1, wherein: The ground wire (8) is installed at the end of the second lightning protection body (7) away from the first lightning protection body (1).

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