Disc insulator and high-voltage switchgear

Abstract

The utility model relates to the field of high-voltage electrical equipment, in particular to a disc insulator and high-voltage switch equipment, which comprises a disc insulator main body, an insert is fixedly connected to the middle of the disc insulator main body, a flange plate is inserted into the outer side of the disc insulator main body, and a locking assembly is arranged in the middle of the flange plate; according to the disc insulator and the high-voltage switchgear provided by the utility model, rapid and stable connection between the disc insulator main body and the flange plate is realized mainly by arranging the cross-shaped bolt on the outer side of the disc insulator main body and arranging the locking assembly on the flange plate; pre-positioning before connection is achieved through the first positioning wire groove and the second positioning wire groove, the handle clamping block is fixed through rotation of the limiting clamping groove piece when connection is locked and unlocked, and firm connection and quick disassembly of the flange plate are achieved through the structure.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage electrical equipment, specifically a disc insulator and a high-voltage switchgear. Background Technology

[0002] High-voltage switchgear is an important control device for connecting and disconnecting circuits, and for isolating and cutting off faults. When a power supply line or equipment fails, high-voltage switchgear is used to ground the faulty circuit in order to eliminate the danger caused by the faulty system. In high-voltage switchgear, insulators are usually used to connect the two components.

[0003] Chinese Patent CN218788303U discloses a basin-type insulator for 145kV combined electrical appliances, comprising a disc-shaped base and three metal inserts disposed on the disc-shaped base. A metal flange is fixedly provided on the outside of the disc-shaped base, and a flange groove is provided between the disc-shaped base and the metal flange. In this utility model, by using epoxy resin to make the disc-shaped base and fixing three metal inserts on the disc-shaped base, the effect of having three connection positions on one insulator is achieved. This not only makes installation quick and convenient and easy to replace in case of failure, but also greatly reduces the space occupied compared with existing multi-position insulators.

[0004] The aforementioned scheme and existing technology for disc insulators typically consist of a disc insulator body, inserts, and annular flanges. The disc insulator body and the annular flange are usually fixed by adhesive bonding. However, adhesive bonding can age and loosen over time, causing the disc insulator body and the annular flange to separate. Furthermore, when it is necessary to replace either the disc insulator body or the annular flange, the adhesive is inconvenient to remove. Therefore, there is a lack of a suitable and stable structure that connects the disc insulator body and the annular flange and facilitates disassembly, which requires improvement and optimization. Utility Model Content

[0005] The purpose of this invention is to provide a disc insulator and a high-voltage switchgear to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a disc insulator includes a disc insulator body, an insert is fixedly connected to the middle of the disc insulator body, a flange is inserted into the outer side of the disc insulator body, and a locking component is provided in the middle of the flange.

[0007] Preferably, the disc insulator body has three sets of cross slots evenly distributed around its perimeter, three sets of first positioning grooves evenly distributed around its perimeter, and a circular hole in the center of its body.

[0008] Preferably, the first positioning groove corresponds to the center position of the cross slot.

[0009] Preferably, the flange is provided with three sets of second positioning grooves evenly around its perimeter, and the second positioning grooves correspond to the first positioning grooves.

[0010] Preferably, the locking assembly includes a cross-shaped pin hole, there are three sets of cross-shaped pin holes evenly distributed around the flange, one end of the cross-shaped pin hole is connected to a limiting groove, the limiting groove is located on the outside of the flange, a cross pin is inserted into the cross-shaped pin hole, and a cylindrical pin is fixedly connected to one end of the cross pin.

[0011] Preferably, one end of the cross pin is fixedly connected to four sets of springs, one end of each spring is fixedly connected to the inner wall of the cross-shaped pin hole, one end of the cylindrical pin is fixedly connected to a handle block, and the middle of the cylindrical pin is rotatably connected to a limiting slot, which is rotatably positioned within a limiting groove.

[0012] Preferably, one end of the limiting slot is provided with a deep groove and a shallow groove, and the deep groove is perpendicular to the shallow groove.

[0013] Preferably, the handle block engages with a groove that is deep or shallow.

[0014] A high-voltage switchgear includes a disc insulator.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The present invention proposes a disc insulator and high-voltage switchgear, which mainly achieves a quick and stable connection between the disc insulator body and the flange by setting a cross pin on the outside of the disc insulator body and setting a locking component on the flange. The first positioning groove and the second positioning groove achieve pre-positioning before connection. The rotation of the limiting slot piece is used to fix the handle block when locking and unlocking the connection. This structure realizes a firm connection and quick disassembly of the flange. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a disc insulator and a high-voltage switchgear.

[0018] Figure 2 for Figure 1 Enlarged diagram of part A in the middle;

[0019] Figure 3 This is a partial structural schematic diagram of a disc insulator and a high-voltage switchgear.

[0020] Figure 4 A structural cross-sectional view of a disc insulator and a high-voltage switchgear;

[0021] Figure 5 for Figure 4 Enlarged diagram of part B in the middle;

[0022] Figure 6 This is a schematic diagram of another partial structure of a disc insulator and a high-voltage switchgear.

[0023] In the figure: 1. Circular insulator body, 101. Cross slot, 102. First positioning groove, 103. Circular hole, 2. Insert, 3. Flange, 301. Second positioning groove, 401. Cross-shaped pin hole, 402. Cross pin, 403. Cylindrical pin, 404. Spring, 405. Handle block, 406. Limiting groove, 407. Limiting circular groove, 408. Deep groove, 409. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figures 1 to 6 This utility model provides the following two technical solutions:

[0026] Example 1: A disc insulator includes a disc insulator body 1, an insert 2 fixedly connected to the middle of the disc insulator body 1, a flange 3 inserted into the outer side of the disc insulator body 1, and a locking component provided in the middle of the flange 3.

[0027] A high-voltage switchgear includes a disc insulator.

[0028] Before inserting the disc insulator body 1 into the flange 3, first release the locking component on the flange 3, and then insert and fix the disc insulator body 1 into the flange 3.

[0029] Example 2: Based on Example 1, three sets of cross slots 101 are evenly arranged around the main body 1 of the disc insulator, and three sets of first positioning grooves 102 are evenly arranged around the main body 1 of the disc insulator. A circular hole 103 is provided in the center of the main body 1 of the disc insulator. The first positioning grooves 102 correspond to the center positions of the cross slots 101. Three sets of second positioning grooves 301 are evenly arranged around the flange 3, and the second positioning grooves 301 correspond to the first positioning grooves 102. The locking component includes three sets of cross-shaped pin holes 401, which are evenly arranged around the flange 3. One end of the cross-shaped pin hole 401 is connected to a limiting groove 407. The limiting groove 407 is provided with... On the outside of flange 3, a cross pin 402 is inserted into a cross-shaped pin hole 401. One end of the cross pin 402 is fixedly connected to a cylindrical pin 403. Four sets of springs 404 are fixedly connected to one end of the cross pin 402. One end of the springs 404 is fixedly connected to the inner wall of the cross-shaped pin hole 401. One end of the cylindrical pin 403 is fixedly connected to a handle block 405. A limiting groove 406 is rotatably connected to the middle of the cylindrical pin 403. The limiting groove 406 is rotatably disposed in a limiting groove 407. One end of the limiting groove 406 is provided with a deep groove 408 and a shallow groove 409. The deep groove 408 is perpendicular to the shallow groove 409. The handle block 405 is engaged with either the deep groove 408 or the shallow groove 409.

[0030] In use, the locking and unlocking operation of the locking component is as follows: First, pull up the handle latch 405, rotate the limiting slot 406 to align the shallow groove 409 with the handle latch 405, and release the lever. Then, the handle latch 405 is locked into the shallow groove 409, at which point the lock is released. Next, align and insert the first positioning groove 102 on the disc insulator body 1 with the second positioning groove 301 on the flange 3. Then, pull up the handle latch 405, and then rotate the limiting slot 406 to align the deep groove 408 with the handle latch 405. After releasing the lever, the handle latch... Block 405 is pressed and engaged in the deep groove 408. At this time, the three sets of cross-shaped pin holes 401 are also pressed forward and inserted into the three sets of cross slots 101 on the disc insulator body 1 by the restoration of the four sets of springs 404, so that the disc insulator body 1 and the flange 3 are firmly connected, avoiding the problem of adhesive falling off over time. At the same time, by pulling the handle and locking block 405, rotating the limiting slot piece 406, the shallow groove 409 is aligned with the handle and locking block 405, so that the lock can be released, which also facilitates the disassembly and replacement of the flange 3 and the disc insulator body 1.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disc insulator, characterized in that: It includes a disc insulator body (1), an insert (2) is fixedly connected to the middle of the disc insulator body (1), a flange (3) is inserted into the outer side of the disc insulator body (1), and a locking component is provided in the middle of the flange (3); The locking assembly includes a cross-shaped pin hole (401), which has three sets and is evenly distributed around the flange (3). One end of the cross-shaped pin hole (401) is connected to a limiting groove (407), which is located on the outside of the flange (3). A cross pin (402) is inserted into the cross-shaped pin hole (401), and a cylindrical pin (403) is fixedly connected to one end of the cross pin (402).

2. A disc insulator according to claim 1, characterized in that: The disc insulator body (1) has three sets of cross slots (101) evenly arranged around its perimeter, and three sets of first positioning grooves (102) evenly arranged around its perimeter. The disc insulator body (1) has a circular hole (103) in the center.

3. A disc insulator according to claim 2, characterized in that: The first positioning groove (102) corresponds to the center position of the cross slot (101).

4. A disc insulator according to claim 1, characterized in that: The flange (3) is provided with three sets of second positioning grooves (301) evenly around its perimeter, and the second positioning grooves (301) correspond to the first positioning grooves (102).

5. A disc insulator according to claim 1, characterized in that: The cross pin (402) is fixedly connected to four sets of springs (404) at one end. The springs (404) are fixedly connected to the inner wall of the cross-shaped pin hole (401) at one end. The cylindrical pin (403) is fixedly connected to a handle block (405) at one end. The cylindrical pin (403) is rotatably connected to a limiting slot (406) in the middle. The limiting slot (406) is rotatably disposed in the limiting circular groove (407).

6. A disc insulator according to claim 5, characterized in that: The limiting slot (406) has a deep groove (408) and a shallow groove (409) at one end, with the deep groove (408) perpendicular to the shallow groove (409).

7. A disc insulator according to claim 5, characterized in that: The handle block (405) engages with a deep groove (408) or a shallow groove (409).

8. A high-voltage switchgear, characterized in that: The disc insulator includes any one of claims 1-7.

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