Outdoor high-voltage ac disconnector attached grounding switch

Abstract

The outdoor high-voltage AC isolating switch attached grounding switch comprises a grounding switch structure and a static contact structure; the grounding switch structure comprises a grounding knife tube, ground knife fingers are installed on both sides of one end of the grounding knife tube, a clamping block is installed on the lower part of the other end of the grounding knife tube, the clamping block is perpendicular to the grounding knife tube, a through hole is arranged on the clamping block, a U-shaped bolt passes through the through hole of the clamping block and is installed with the clamping block, the other end of the U-shaped bolt extends downward, and a non-polar universal adjustment position is formed between the U-shaped bolt and the clamping block. The outdoor high-voltage AC isolating switch attached grounding switch has the advantages of simple structure and convenient use.

Description

Technical Field

[0001] This utility model relates to the field of ultra-high voltage power equipment, and in particular to a grounding switch attached to an outdoor high voltage AC disconnect switch. Background Technology

[0002] The grounding switch attached to the outdoor double-column horizontal rotary disconnector has long featured a grounding switch blade with a circular aluminum tube structure. The upper contact is made of cast lead brass and connected to the conductive tube. The lower end is connected to a rotating shaft on the base. Specially made grounding conductive strips are then fixed to both ends of the blade tube. This process is difficult, involves many parts, is complex to assemble, time-consuming and labor-intensive to adjust, inconvenient to connect to the grounding conductive strip, and is costly. Summary of the Invention

[0003] To address the technical problems existing in the prior art, this utility model provides a grounding switch attached to an outdoor high-voltage AC disconnector.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a grounding switch attached to an outdoor high-voltage AC disconnect switch, including a grounding switch structure and a stationary contact structure; the grounding switch structure includes a grounding knife tube, with grounding knife contact fingers installed on both sides of one end of the grounding knife tube, and a clamping block installed at the lower part of the other end. The clamping block is perpendicular to the grounding knife tube, and a through hole is provided on the clamping block. One end of a U-bolt passes through the through hole of the clamping block and is installed therewith, while the other end extends downwards. The U-bolt and the clamping block form an infinitely adjustable position.

[0005] The grounding contact finger is a plate structure with a raised center; the grounding contact finger is attached to the side of the grounding tube and installed at the end of the grounding tube along the length of the grounding tube. There are two raised structures, one above the other, which are parallel to each other and have a gap in the middle.

[0006] The static contact structure includes a fixing plate and a contact finger. The fixing plate is a T-shaped structure with two mounting holes on the upper horizontal part and one mounting hole on the lower vertical part along its length. The contact finger is an L-shaped plate. The upper vertical part of the contact finger is attached to the outer side of the lower vertical part of the fixing plate and is installed by bolts through the mounting holes. The lower horizontal part of the contact finger passes around the bottom of the fixing plate and extends into the inside of the fixing plate.

[0007] The grounding switch structure is installed between the parallel connecting rods of the disconnecting switch structure.

[0008] The aforementioned connecting rods consist of three parallel rods, and there are two grounding switch structures. One outer connecting rod passes through the infinitely adjustable position of one grounding switch structure, with the grounding knife contact of this grounding switch structure pointing upwards towards the middle connecting rod. The other outer connecting rod passes through the infinitely adjustable position of another grounding switch structure, with the grounding knife contact of this grounding switch structure pointing upwards towards the middle connecting rod. The grounding knife contacts of the two grounding switch structures do not contact each other.

[0009] The rotation of the outer connecting rod causes the two grounding switch structures to rotate around the infinitely adjustable position as the axis, and the grounding knife contact moves upward.

[0010] The stationary contact structure is connected to the clamping plate of the disconnecting switch structure.

[0011] The grounding knife tube is a rectangular aluminum structure.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a novel grounding switch, which is based on the existing outdoor double-column horizontal rotary openable disconnector switch with improved grounding switch structure and stationary contact structure. This utility model has strong versatility, simple structure, low cost, and achieves grounding functions that are convenient to adjust, easy to operate, efficient, and reliable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a utility model grounding switch.

[0014] Figure 2 This is a schematic diagram of the original grounding switch structure.

[0015] Figure 3 This is a schematic diagram of the structure of a utility model switch stationary contact.

[0016] Figure 4 This is a schematic diagram of the original stationary contact structure of the switch.

[0017] Figure 5 This is a schematic diagram of the phase-to-phase connecting rod assembly of a utility model grounding switch.

[0018] Figure 6 yes Figure 5 Enlarged schematic diagram of the grounding switch structure.

[0019] Figure 7 yes Figure 5 Enlarged schematic diagram of the intermediate static contact structure. Detailed Implementation

[0020] The original grounding switch structure, such as Figure 2 As shown, the right side features a four-bar linkage structure, which is difficult, time-consuming, and labor-intensive to adjust. The original switch stationary contact structure is as follows: Figure 4As shown, the shape is complex and difficult to process.

[0021] The structure of this utility model is as follows: Figure 1 , 3 As shown. The grounding switch attached to the outdoor high-voltage AC disconnect switch includes a grounding switch structure and a stationary contact structure; the grounding switch structure includes a grounding blade tube 1, which is a rectangular aluminum structure. Grounding blade fingers 2 are installed on both sides of one end of the grounding blade tube 1, and a clamping block 3 is installed at the lower part of the other end. The clamping block 3 is perpendicular to the grounding blade tube 1 and has a through hole. One end of a U-bolt 4 passes through the through hole of the clamping block 3 and is installed therewith, while the other end extends downwards, forming a stepless universal adjustment position 7 between the U-bolt 4 and the clamping block 3.

[0022] The grounding contact finger 2 is a plate structure with a raised center; the grounding contact finger 2 is attached to the side of the grounding tube 1 and installed at the end of the grounding tube 1 along the length of the grounding tube 1. There are two raised structures, one above the other, which are parallel to each other and have a gap in the middle.

[0023] The static contact structure includes a fixing plate 5 and a contact finger 6. The fixing plate 5 is a T-shaped structure with two mounting holes on the upper horizontal part and one mounting hole on the lower vertical part along its length. The contact finger 6 is an L-shaped plate. The upper vertical part of the contact finger 6 is attached to the outer side of the lower vertical part of the fixing plate 5 and is installed by bolts through the mounting holes. The lower horizontal part of the contact finger 6 passes around the bottom of the fixing plate 5 and extends into the inside of the fixing plate 5.

[0024] The grounding switch structure is installed between the parallel connecting rods 8 and 8 of the isolating switch structure.

[0025] The connecting rods 8 are three in number and arranged in parallel to each other. There are two grounding switch structures. One outer connecting rod 8 passes through the infinitely adjustable position 7 of one grounding switch structure, and the grounding knife contact 2 of this grounding switch structure is positioned above the middle connecting rod 8. The other outer connecting rod 8 passes through the infinitely adjustable position 7 of another grounding switch structure, and the grounding knife contact 2 of this grounding switch structure is positioned above the middle connecting rod 8. The grounding knife contacts 2 of the two grounding switch structures do not contact each other.

[0026] The static contact structure is connected to the clamp 9 of the disconnecting switch structure.

[0027] When using, such as Figure 5-7As shown, the two outer connecting rods 8 rotate, thereby causing the grounding switch structure to rotate around the infinitely adjustable position 7 as the axis, and the grounding knife contact finger 2 moves upward. Simultaneously, the upper shaft of the disconnecting switch structure rotates, causing the clamping plate 9 to rotate outward, thus bringing the grounding knife contact finger 2 of the grounding switch structure into contact with the contact finger 6 of the stationary contact structure. The connecting rods 8 and the upper shaft of the disconnecting switch structure rotate in opposite directions, causing the grounding knife contact finger 2 of the grounding switch structure to separate from the contact finger 6 of the stationary contact structure, returning to its original position. Figure 5 The positions shown are used repeatedly to achieve product functionality.

Claims

1. A grounding switch attached to an outdoor high-voltage AC disconnector, characterized in that: It includes a grounding switch structure and a stationary contact structure; the grounding switch structure includes a grounding knife tube (1), with grounding knife contact fingers (2) installed on both sides of one end of the grounding knife tube (1), and a clamping block (3) installed at the lower part of the other end. The clamping block (3) is perpendicular to the grounding knife tube (1), and a through hole is provided on the clamping block (3). One end of a U-bolt (4) passes through the through hole of the clamping block (3) and is installed thereon, while the other end extends downward. A stepless universal adjustment position (7) is formed between the U-bolt (4) and the clamping block (3).

2. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 1, characterized in that: The grounding knife contact finger (2) is a plate structure with a raised middle section; the grounding knife contact finger (2) is attached to the side of the grounding knife tube (1) and installed at the end of the grounding knife tube (1) along the length direction of the grounding knife tube (1). There are two raised structures, one above the other, which are parallel to each other and have a gap in the middle.

3. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 1, characterized in that: The static contact structure includes a fixing plate (5) and a contact finger (6). The fixing plate (5) is a T-shaped structure with two mounting holes on the upper horizontal part and one mounting hole on the lower vertical part along its length. The contact finger (6) is an L-shaped plate. The upper vertical part of the contact finger (6) is attached to the outer side of the lower vertical part of the fixing plate (5) and is installed by bolts through the mounting holes. The lower horizontal part of the contact finger (6) passes around the bottom of the lower part of the fixing plate (5) and extends into the inside of the fixing plate (5).

4. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 3, characterized in that: The static contact structure is connected to the clamp (9) of the isolating switch structure.

5. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 1, characterized in that: The grounding switch structure is installed between the parallel connecting rods (8) of the isolating switch structure.

6. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 5, characterized in that: There are three connecting rods (8) arranged in parallel to each other, and there are two grounding switch structures. One outer connecting rod (8) passes through the infinitely adjustable position (7) of one grounding switch structure, and the grounding knife contact (2) of this grounding switch structure is positioned above the middle connecting rod (8). The other outer connecting rod (8) passes through the infinitely adjustable position (7) of another grounding switch structure, and the grounding knife contact (2) of this grounding switch structure is positioned above the middle connecting rod (8). The grounding knife contact (2) of the two grounding switch structures do not contact each other.

7. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 6, characterized in that: The outer connecting rod (8) rotates, causing the two grounding switch structures to rotate around the infinitely adjustable position (7) as the axis, and the grounding knife contact finger (2) moves upward.

8. The grounding switch attached to the outdoor high-voltage AC disconnector according to claim 1, characterized in that: The grounding knife tube (1) has a rectangular aluminum structure.

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