Combined installation assembly for lightning arrester of power transmission line

Abstract

The utility model discloses a power transmission line lightning arrester combined type installation assembly which comprises a support platform, a movable base, a lightning arrester body and a supporting seat, the supporting seat is installed at the upper end of the lightning arrester body, a high-voltage side electrode is fixedly installed at the upper end of the supporting seat, and the upper end of the movable base is fixedly connected with the lower end of the lightning arrester body. The movable base is fixedly installed in the support platform, and a connecting assembly is arranged on the side, away from the movable base, of the support platform. According to the utility model, a thought is provided for reliable installation of a power transmission line lightning arrester on a tower and accurate positioning of an air gap distance, and the device is especially suitable for ultra-high voltage and extra-high voltage AC / DC power transmission line lightning arresters; the high-voltage side electrode is connected with the end part of the lightning arrester body through the supporting seat, so that a traditional extension rod is abandoned, the mounting stability between the electrode and the lightning arrester body is further improved, and the risks of deformation, bending and breakage of the electrode under the action of strong wind are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of arrester installation, in particular to a combined installation component for a transmission line arrester. Background Art

[0002] Ultra-high voltage and extra-high voltage AC / DC transmission lines are the main grid frameworks of China's power grid and play an important role in power transmission. Lightning is the primary cause of transmission line tripping. With the successful research and development and wide application of line arresters, the line lightning trip rate has been reduced to a reasonable level. However, in recent years, with the increasing use of more arresters, a new problem has gradually emerged, that is, the arrester fails ultimately due to the unqualified installation metal accessories of the arrester. For example, the extension rod of the high-voltage side electrode is deformed, bent or even broken under the action of strong wind, and the installation holes of the arrester support platform are relatively single, resulting in a large deviation between the high-voltage side electrode and the wire side electrode, etc.

[0003] How to ensure the simple, convenient and reliable installation of the line arrester on the transmission tower is the key to ensuring the full play of the lightning protection function of the arrester. Therefore, there is an urgent need for a combined installation component for a transmission line arrester to achieve the installation reliability of the line arrester, the simplicity and convenience of distance adjustment and alignment adjustment between electrodes, and solve the problems of poor installation stability and low lightning protection effect caused by the non-standard and unqualified installation metal accessories of the existing arrester. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a combined installation component for a transmission line arrester is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A combined installation component for a transmission line arrester includes a support platform, a moving base, an arrester body and a support seat. The support seat is installed at the upper end of the arrester body. A high-voltage side electrode is fixedly installed at the upper end of the support seat. The upper end of the moving base is fixedly connected to the lower end of the arrester body. The moving base is fixedly installed in the support platform. A connecting component is provided on one side of the support platform away from the moving base, and the support platform is fixedly connected to a transmission tower through the connecting component.

[0006] Further, the high-voltage side electrode is fixedly connected to the end of the arrester body through the support seat. The height of the support seat is 200 - 1000 mm, and the number of support seats is 1 - 5.

[0007] Further, a series of vertical second installation holes are provided on the side of the moving base, and every two rows of second installation holes are taken as a group. There are 3 - 5 groups of the second installation holes. The number of the second installation holes in each row is 3 - 5, and the distance between each group of the second installation holes is 200 - 400 mm.

[0008] Further, a series of transverse first mounting holes are provided on the support platform. There are two rows of the first mounting holes, and the number of the first mounting holes in each row is 6 - 10. The first mounting holes cooperate with the second mounting holes provided on the side of the moving base.

[0009] Further, the connecting component includes an angle plate fixedly connected to the support platform. A cross plate is fixedly connected to the side wall of the angle plate. A screw rod passes through and is threadedly connected to the middle of the cross plate. One end of the screw rod close to the bending part of the angle plate is rotatably connected to an L-shaped clamping plate through a bearing.

[0010] Further, a guide rod is fixedly connected to the side of the L-shaped clamping plate close to the cross plate. The guide rod passes through the cross plate and is slidably connected to the cross plate.

[0011] Advantages of the present utility model:

[0012] When the present utility model is in use, the combined installation component for a transmission line lightning arrester provides an idea for the reliable installation of the transmission line lightning arrester on the pole tower and the accurate positioning of the air gap distance, and is particularly suitable for lightning arresters of ultra-high and extra-high voltage AC and DC transmission lines; the high-voltage side electrode is connected to the end of the lightning arrester body through the support seat, abandoning the traditional extension rod, further increasing the installation stability between the electrode and the lightning arrester body, and reducing the risks of deformation, bending, and fracture under strong wind action; installing and applying support seats with different fixed lengths can realize the up and down movement of the high-voltage side electrode of the lightning arrester within a large range, and the series of vertical mounting holes provided on the side of the moving base can realize the up and down movement of the lightning arrester body within a small range. The two together realize the comprehensive adjustment of the air gap distance of the lightning arrester; the series of transverse mounting holes provided on the support platform can realize the transverse movement of the lightning arrester, ensuring the centering installation of the high-voltage side electrode and the wire side electrode of the lightning arrester, and realizing the simple, convenient, and reliable installation of the lightning arrester on the pole tower. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 : Overall schematic diagram of the present utility model;

[0015] Figure 2 : Schematic diagram of the support seat of the present utility model;

[0016] Figure 3 : Schematic diagram of the support platform of the present utility model;

[0017] Figure 4 : Partial top view of the support platform of the present utility model;

[0018] Figure 5 : Schematic diagram of the moving base of the present utility model;

[0019] Figure 6 : Schematic diagram of the connection component of the present utility model.

[0020] The reference numerals are as follows:

[0021] 1. Support platform; 101. First mounting hole; 2. Moving base; 3. Lightning arrester body; 4. Support seat; 5. High-voltage side electrode; 6. Transmission tower; 7. Connection component; 71. Angle plate; 72. Horizontal plate; 73. Screw; 74. L-shaped clamping plate; 75. Guide rod. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0023] As Figures 1-6 shown, it relates to a combined installation component for a transmission line lightning arrester, including a support platform 1, a moving base 2, a lightning arrester body 3, and a support seat 4. The support seat 4 is installed at the upper end of the lightning arrester body 3. A high-voltage side electrode 5 is fixedly installed at the upper end of the support seat 4. The upper end of the moving base 2 is fixedly connected to the lower end of the lightning arrester body 3. The moving base 2 is fixedly installed in the support platform 1. A connection component 7 is provided on one side of the support platform 1 away from the moving base 2, and the support platform 1 is fixedly connected to a transmission tower 6 through the connection component 7.

[0024] The high-voltage side electrode 5 is fixedly connected to the end of the lightning arrester body 3 through the support seat 4. The height of the support seat 4 is 200 - 1000 mm, and the number of the support seats 4 is 1 - 5.

[0025] Therefore, the high-voltage side electrode 5 can be fixedly installed on the top of the lightning arrester body 3 through the support seat 4, abandoning the traditional extension rod, further increasing the installation stability between the high-voltage side electrode 5 and the lightning arrester body 3, and reducing the risks of deformation, bending, and fracture under strong wind.

[0026] A series of vertical second mounting holes are provided on the side of the moving base 2, and every two rows of second mounting holes form a group. There are 3 - 5 groups of second mounting holes in total. The number of second mounting holes in each row is 3 - 5, and the distance between each group of second mounting holes is 200 - 400 mm.

[0027] A series of horizontal first mounting holes 101 are provided on the support platform 1. There are two rows of first mounting holes 101 in total. The number of first mounting holes 101 in each row is 6 - 10. The first mounting holes 101 cooperate with the second mounting holes provided on the side of the moving base 2.

[0028] The moving base 2 is located in the support platform 1 and can move along the support platform 1. Through the cooperation of the first mounting holes 101 and the second mounting holes, the moving base 2 can be installed at a specified position on the support platform 1. Thus, the lateral movement of the arrester body 3 is realized, ensuring the centering installation of the high - voltage side electrode 5 and the wire - side electrode, and achieving the simple, convenient and reliable installation of the arrester body 3 on the transmission tower 6.

[0029] Secondly, installing and applying support seats 4 with different fixed lengths can realize the large - range up - and - down movement of the arrester body 3 and the high - voltage side electrode 5. The series of vertical second mounting holes provided on the side of the moving base 2 can realize the small - range up - and - down movement of the arrester body 3. The two together realize the comprehensive adjustment of the air gap distance of the arrester body 3.

[0030] The connecting component 7 includes an angle plate 71 fixedly connected to the support platform 1. A cross - plate 72 is fixedly connected to the side wall of the angle plate 71. A screw rod 73 passes through and is threadedly connected to the middle of the cross - plate 72. One end of the screw rod 73 close to the bending part of the angle plate 71 is rotatably connected to an L - shaped clamping plate 74 through a bearing.

[0031] When the support platform 1 is installed on the transmission tower 6, the bending part of the angle plate 71 and the L - shaped clamping plate 74 are respectively clamped on the installation cross - beam of the transmission tower 6. Then, by rotating the screw rod 73 to drive the L - shaped clamping plate 74 to move, the cross - beam is squeezed by the bending part of the angle plate 71 and the L - shaped clamping plate 74, so as to realize the quick fixed installation of the support platform 1.

[0032] A guide rod 75 is fixedly connected to the side of the L - shaped clamping plate 74 close to the cross - plate 72. The guide rod 75 passes through the cross - plate 72 and is slidably connected to the cross - plate 72. The guide rod 75 plays a guiding role in the movement of the L - shaped clamping plate 74.

[0033] Working principle: First, fix the support platform 1 on the transmission tower 6 through the connecting component 7. Then, fix the high-voltage side electrode 5 on the top of the arrester body 3 through the support base 4. The bottom of the arrester body 3 is fixedly connected to the vertical second mounting hole on the moving base 2. During installation, the position of the arrester body 3 can be adjusted up and down. Finally, align the second mounting hole on the moving base 2 with the series of horizontal first mounting holes 101 on the support platform 1, and fixedly connect the moving base 2 and the support platform 1 through the above-mentioned mounting holes.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help explain the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A combined installation assembly for a transmission line lightning arrester, characterized in that: The invention comprises a support platform (1), a mobile base (2), a lightning arrester body (3) and a support base (4); the support base (4) is mounted on the upper end of the lightning arrester body (3); a high-voltage side electrode (5) is fixedly mounted on the upper end of the support base (4); the upper end of the mobile base (2) is fixedly connected to the lower end of the lightning arrester body (3); the mobile base (2) is fixedly mounted in the support platform (1); a connecting component (7) is provided on the side of the support platform (1) away from the mobile base (2); and the support platform (1) is fixedly connected to a transmission tower (6) via the connecting component (7).

2. A combined installation assembly for a power transmission line lightning arrester according to claim 1, characterized in that: The high-voltage side electrode (5) is fixedly connected to the end of the arrester body (3) via a support seat (4); the height of the support seat (4) is 200-1000 mm, and the number of the support seats (4) is 1-5.

3. A combined installation assembly for a power transmission line lightning arrester according to claim 1, characterized in that: A series of vertical second mounting holes are arranged on the side of the mobile base (2), and every two rows of second mounting holes form a group. There are 3-5 groups of second mounting holes in total, the number of second mounting holes in each row is 3-5, and the distance between each group of second mounting holes is 200-400 mm.

4. A combined installation assembly for a power transmission line lightning arrester according to claim 3, characterized in that: A series of transverse first mounting holes (101) are provided on the support platform (1), the first mounting holes (101) being arranged in two rows, the number of the first mounting holes (101) in each row being 6 to 10, and the first mounting holes (101) being matched with second mounting holes provided on the side of the mobile base (2).

5. A combined installation assembly for a power transmission line lightning arrester according to claim 1, characterized in that: The connection assembly (7) comprises an angle plate (71) fixedly connected to the support platform (1); a transverse plate (72) is fixedly connected to the side wall of the angle plate (71); a screw rod (73) passes through the middle of the transverse plate (72) and is threadedly connected; and one end of the screw rod (73) close to the bent portion of the angle plate (71) is rotatably connected to an L-shaped clamping plate (74) via a bearing.

6. A combined installation assembly for a power transmission line lightning arrester according to claim 5, characterized in that: A guide rod (75) is fixedly connected to one side of the L-shaped clamping plate (74) close to the transverse plate (72); the guide rod (75) penetrates the transverse plate (72) and is slidably connected to the transverse plate (72).

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