Vacuum arc-extinguishing chamber capable of improving external insulation level

Abstract

The utility model discloses a vacuum arc-extinguishing chamber capable of improving external insulation level, which comprises a vacuum arc-extinguishing chamber body, the upper end of the vacuum arc-extinguishing chamber body is fixedly connected with a mounting ring, the outer side wall of the mounting ring is rotatably sleeved with a movable ring, the inner side wall of the movable ring is fixedly connected with a connecting ring, and the connecting ring is fixedly connected with the vacuum arc-extinguishing chamber body. An annular first groove is formed in the outer side wall of the mounting ring, the side, away from the movable ring, of the connecting ring extends into the first groove, an annular rack is fixedly connected to the side, away from the movable ring, of the connecting ring, and a gear meshed with the rack is arranged in the first groove; a servo motor is fixedly embedded in the inner bottom of the first groove, and the tail end of an output shaft of the servo motor is fixedly connected with the lower end of a gear. According to the utility model, the external surface of the vacuum arc-extinguishing chamber is scraped, brushed and cleaned, so that the adhesion of stains and water is avoided, the external insulation level is further improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum interrupter chambers, in particular to a vacuum interrupter chamber capable of improving the external insulation level. Background Art

[0002] Vacuum interrupter, also known as vacuum switch tube, is the core component of medium and high voltage power switch. Its main function is to use the excellent insulation of vacuum inside the tube to quickly extinguish arc and suppress current after the medium and high voltage circuit cuts off the power supply, avoiding accidents and unexpected events. Vacuum interrupter is widely used, including power transmission and distribution control system, as well as metallurgy, mining, petroleum, chemical industry, railway, broadcasting, communication, industrial high-frequency heating and other power distribution systems.

[0003] However, the existing vacuum interrupter generally adopts a ceramic shell, and the surface of the ceramic shell is mostly corrugated. During use, the exterior is easily affected by stains, moisture and other factors, resulting in reduced insulation level. The reduced insulation level is likely to cause flashover, breakdown and other phenomena. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology and to provide a vacuum interrupter capable of improving the external insulation level.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vacuum interrupter capable of improving external insulation level comprises a vacuum interrupter body, wherein a mounting ring is fixedly connected to the upper end of the vacuum interrupter body, a movable ring is rotatably sleeved on the outer side wall of the mounting ring, a connecting ring is fixedly connected to the inner side wall of the movable ring, a first annular groove is provided on the outer side wall of the mounting ring, a side of the connecting ring away from the movable ring extends into the first groove, a side of the connecting ring away from the movable ring is fixedly connected to an annular rack, a gear meshing with the rack is provided in the first groove, a servo motor is fixedly embedded in the inner bottom of the first groove, an output shaft end of the servo motor is fixedly connected to the lower end of the gear, a vertically arranged movable rod is provided on the outer side wall of the vacuum interrupter body, the upper end of the movable rod is fixedly connected to the lower end of the movable ring, a side of the movable rod close to the vacuum interrupter body is respectively fixedly connected to a vertically arranged cleaning brush and a scraper, and the cleaning brush and the scraper are both against the outer side wall of the vacuum interrupter body on the side away from the movable rod.

[0007] Preferably, a second annular groove is provided on the outer side wall of the mounting ring, a support ring is rotatably connected to the inner side wall of the second groove, and one side of the support ring passes through the second groove and is fixedly connected to the inner side wall of the movable ring.

[0008] Preferably, arc-shaped grooves are provided on both upper and lower sides of the support ring, and balls are rollingly connected to the inner side walls of the arc-shaped grooves, and parts of the balls pass through the arc-shaped grooves.

[0009] Preferably, a fixing ring is rotatably sleeved on the outer side wall of the mounting ring, and the lower end of the fixing ring is fixedly connected to the upper end of the movable ring.

[0010] Preferably, both sides of the movable rod are fixedly connected with fixed blocks, and the upper ends of the fixed blocks are fixedly connected to the lower ends of the movable rings.

[0011] Preferably, the scraper strip is made of rubber.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model can scrape and brush a circle of the outer surface of the vacuum interrupter through the arrangement of the servo motor, gear, rack, connecting ring, movable ring, movable rod, scraper and cleaning brush, thereby preventing stains and moisture from adhering, thereby improving the insulation level of the outside and improving safety;

[0014] 2. In the utility model, the setting of the fixed ring, the support ring and the second groove can support the movable ring, improve the firmness between the support ring and the installation ring, avoid the loosening of the movable ring, and improve the reliability during use; in the utility model, the external surface of the vacuum arc chamber is scraped and cleaned to avoid stains and moisture adhesion, thereby improving the external insulation level and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a vacuum interrupter that can improve the external insulation level proposed by the utility model;

[0016] Figure 2 A schematic diagram of the side view structure of a movable rod of a vacuum interrupter that can improve the external insulation level proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of position A of a vacuum interrupter that can improve the external insulation level proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the structure at position B of a vacuum interrupter that can improve the external insulation level proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the side view structure of a mounting ring of a vacuum interrupter proposed by the utility model and capable of improving the external insulation level.

[0020] In the figure: 1-vacuum interrupter body, 2-mounting ring, 3-movable ring, 4-fixing block, 5-movable rod, 6-cleaning brush, 7-scraper strip, 8-ball, 9-servo motor, 10-fixing ring, 11-support ring, 12-connecting ring, 13-gear. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 A vacuum interrupter capable of improving the external insulation level comprises a vacuum interrupter body 1, a mounting ring 2 is fixedly connected to the upper end of the vacuum interrupter body 1 for mounting a movable ring 3, a second annular groove is arranged on the outer wall of the mounting ring 2, a support ring 11 is rotatably connected to the inner wall of the second groove for supporting the movable ring 3, one side of the support ring 11 passes through the second groove and is fixedly connected to the inner wall of the movable ring 3, an arc groove is arranged on the upper and lower sides of the support ring 11, a ball 8 is rotatably connected to the inner wall of the arc groove for reducing the resistance of the support ring 11 when rotating, a part of the ball 8 passes through the arc groove, a fixed ring 10 is rotatably sleeved on the outer wall of the mounting ring 2 for improving the firmness between the movable ring 3 and the mounting ring 2, and the lower end of the fixed ring 10 is fixedly connected to the upper end of the movable ring 3;

[0023] In this embodiment, a movable ring 3 is rotatably sleeved on the outer side wall of the mounting ring 2, which is used to drive the movable rod 5 to rotate. A connecting ring 12 is fixedly connected to the inner side wall of the movable ring 3, which is used to drive the movable ring 3 to rotate. A first annular groove is provided on the outer side wall of the mounting ring 2. The side of the connecting ring 12 away from the movable ring 3 extends into the first groove. The side of the connecting ring 12 away from the movable ring 3 is fixedly connected to a ring-shaped rack, which is used to drive the connecting ring 12 to rotate. A gear 13 meshing with the rack is provided in the first groove, which is used to drive the rack to rotate. A servo motor 9 is fixedly embedded in the inner bottom of the first groove, which is used to drive the gear 13 to rotate. The output shaft end of the servo motor 9 is fixedly connected to the lower end of the gear 13.

[0024] In this embodiment, a vertically arranged movable rod 5 is provided on the outer wall of the vacuum arc chamber body 1, which is used to drive the scraper 7 and the cleaning brush 6 to move and rotate. The upper end of the movable rod 5 is fixedly connected to the lower end of the movable ring 3, and both sides of the movable rod 5 are fixedly connected with fixed blocks 4, which are used to improve the firmness between the movable rod 5 and the movable ring 3. The upper end of the fixed block 4 is fixedly connected to the lower end of the movable ring 3. The side of the movable rod 5 close to the vacuum arc chamber body 1 is respectively fixedly connected with a vertically arranged cleaning brush 6 and a scraper strip 7, which are used to scrape stains and moisture on the surface of the vacuum arc chamber body 1. The side of the cleaning brush 6 and the scraper strip 7 away from the movable rod 5 is both against the outer wall of the vacuum arc chamber body 1. The scraper strip 7 is made of rubber, which is relatively soft and wear-resistant, and can scrape off stains and moisture.

[0025] In this embodiment, the servo motor 9 is first started to drive the first gear 13 to rotate, and the connecting ring 12 is driven to rotate through the meshing effect of the first gear 13 and the rack, and the movable ring 3 is driven to rotate through the connecting ring 12, and the movable ring 3 is driven to rotate around the vacuum arc chamber body 1. When the movable rod 5 rotates, the scraper strip 7 and the cleaning brush 6 are used to scrape and brush the surface of the vacuum arc chamber body 1, so as to avoid the adhesion of stains and moisture and improve the external insulation level; when the movable ring 3 rotates, it will drive the support ring 11 to slide in the second groove, and the support ring 11 can support the movable ring 3, thereby improving the firmness of the movable ring 3.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vacuum interrupter capable of improving external insulation level, comprising a vacuum interrupter body (1), characterized in that: The upper end of the vacuum interrupter body (1) is fixedly connected to a mounting ring (2); a movable ring (3) is rotatably sleeved on the outer side wall of the mounting ring (2); a connecting ring (12) is fixedly connected to the inner side wall of the movable ring (3); a first annular groove is provided on the outer side wall of the mounting ring (2); a side of the connecting ring (12) away from the movable ring (3) extends into the first groove; a side of the connecting ring (12) away from the movable ring (3) is fixedly connected to an annular rack; a gear (13) meshing with the rack is provided in the first groove; the first groove is provided with a gear (13) meshing with the gear (13); A servo motor (9) is fixedly embedded in the inner bottom, and the output shaft end of the servo motor (9) is fixedly connected to the lower end of the gear (13). A vertically arranged movable rod (5) is provided on the outer side wall of the vacuum arc extinguishing chamber body (1), and the upper end of the movable rod (5) is fixedly connected to the lower end of the movable ring (3). A vertically arranged cleaning brush (6) and a scraper (7) are fixedly connected to the side of the movable rod (5) close to the vacuum arc extinguishing chamber body (1), and the sides of the cleaning brush (6) and the scraper (7) away from the movable rod (5) are both against the outer side wall of the vacuum arc extinguishing chamber body (1).

2. A vacuum interrupter capable of improving external insulation level according to claim 1, characterized in that: A second annular groove is provided on the outer side wall of the mounting ring (2), a support ring (11) is rotatably connected to the inner side wall of the second groove, and one side of the support ring (11) passes through the second groove and is fixedly connected to the inner side wall of the movable ring (3).

3. A vacuum interrupter capable of improving external insulation level according to claim 2, characterized in that: The upper and lower sides of the support ring (11) are both provided with arc grooves, and a ball (8) is rollingly connected on the inner side wall of the arc groove, and a part of the ball (8) passes through the arc groove.

4. A vacuum interrupter capable of improving external insulation level according to claim 1, characterized in that: A fixed ring (10) is rotatably sleeved on the outer side wall of the mounting ring (2), and the lower end of the fixed ring (10) is fixedly connected to the upper end of the movable ring (3).

5. A vacuum interrupter capable of improving external insulation level according to claim 1, characterized in that: Both sides of the movable rod (5) are fixedly connected with fixed blocks (4), and the upper end of the fixed block (4) is fixedly connected to the lower end of the movable ring (3).

6. A vacuum interrupter capable of improving external insulation level according to claim 1, characterized in that: The scraper strip (7) is made of rubber.

Images