Pole-mounted circuit breaker convenient to overhaul

Abstract

The utility model belongs to the technical field of pole-mounted circuit breakers, and particularly relates to a pole-mounted circuit breaker convenient to overhaul, which comprises a pole-mounted circuit breaker body, insulating porcelain bushings, a plurality of covering rings, a toothed ring and the like, the pole-mounted circuit breaker body comprises a mechanism box and vacuum arc-extinguishing chambers, the insulating porcelain bushings are sleeved on the vacuum arc-extinguishing chambers, the covering rings are arranged on the insulating porcelain bushings, and the toothed ring is arranged on the mechanism box. And the middle part and the lower part of the vacuum arc-extinguishing chamber are rotationally connected with gear rings. According to the utility model, the insulating porcelain bushing is covered by the covering ring, so that dust is prevented from falling on the insulating porcelain bushing; then a motor is controlled to drive a gear I and a gear II to rotate, so that a gear ring and a scraping plate are driven to rotate, and a scraping part of the scraping plate can automatically clean accumulated dust on the covering ring, so that manual cleaning is not needed, the operation is simple and convenient, the workload of workers is reduced, and the cleaning efficiency is improved; and meanwhile, a worker can conveniently overhaul the pole-mounted circuit breaker subsequently.

Description

Technical Field

[0001] The utility model belongs to the technical field of pole-mounted circuit breakers, in particular to a pole-mounted circuit breaker which is convenient for maintenance. Background Art

[0002] Pole mounted circuit breakers refer to circuit breakers installed and operated on electric poles. The power research level and manufacturing technology of various circuit breakers have made great progress. Vacuum circuit breakers are not only limited to medium voltage power grids, but are developing towards high voltage and large capacity.

[0003] Pole-mounted circuit breakers are widely used and are often used in distribution network segmentation, liaison and branch lines. They play an important role in improving power supply reliability. The vacuum interrupter is a key component to ensure the working performance of the vacuum circuit breaker. The outside of the vacuum interrupter is usually covered with an insulating porcelain sleeve. When the pole-mounted circuit breaker works outdoors for a long time, dust will accumulate on the insulating porcelain sleeve. The dust will affect the maintenance work of the pole-mounted circuit breaker by the staff and will also affect the normal work of the pole-mounted circuit breaker. Therefore, it is necessary to clean the dust on the insulating porcelain sleeve. The existing cleaning is generally done manually, which is cumbersome, the cleaning efficiency is low, and there is a certain risk of manual climbing cleaning. Utility Model Content

[0004] In order to overcome the shortcomings of low efficiency and relatively dangerous manual dust cleaning of existing pole-mounted circuit breakers, the utility model aims to provide a pole-mounted circuit breaker that can automatically clean dust with high cleaning efficiency and is easy to maintain.

[0005] The technical scheme of the utility model is: a pole-mounted circuit breaker which is easy to repair, comprising a pole-mounted circuit breaker body and an insulating porcelain sleeve, the pole-mounted circuit breaker body comprising a mechanism box and a vacuum arc extinguishing chamber, the vacuum arc extinguishing chamber having three vacuum arc extinguishing chambers which are arranged in sequence according to the left, middle and right positions, each vacuum arc extinguishing chamber being sleeved with an insulating porcelain sleeve, and also comprising a covering ring, a scraper, a gear ring, a gear one, a gear two, a servo motor and a transmission rod, a plurality of covering rings are arranged on the insulating porcelain sleeve, the middle and lower parts of each vacuum arc extinguishing chamber are rotatably connected with a gear ring, the upper part of the gear ring is connected with a scraper for cleaning the covering ring, the middle part of each vacuum arc extinguishing chamber is also rotatably connected with a gear one, a first transmission rod is arranged between the upper parts of the gear one, the lower part of each vacuum arc extinguishing chamber is also rotatably connected with a gear two, a second transmission rod is arranged between the upper parts of the gear two, the gear two and the gear one are meshed with adjacent gear rings, two servo motors are installed on the right vacuum arc extinguishing chamber, and the output shafts of the servo motors are connected with adjacent gear one or gear two.

[0006] As a further preferred solution, a plurality of annular protrusions are provided on the outer side of the insulating porcelain sleeve, and the annular protrusions are all in contact with adjacent covering rings.

[0007] As a further preferred solution, a plurality of scraping parts are provided at the rear of the scraper, and the scraping parts are all in contact with the adjacent covering rings, and the scraping parts can scrape the covering rings by rotating.

[0008] As a further preferred embodiment, the first transmission rod (8) and the second transmission rod (81) are respectively located at the eccentric position of the gear 1 (6) and the gear 2 (61), and the rotation of the gear 1 (6) and the gear 2 (61) on the right vacuum interrupter (11) will respectively cause the first transmission rod (8) and the second transmission rod (81) to move, thereby causing the gear 1 (6) and the gear 2 (61) on the middle vacuum interrupter (11) and the gear 1 (6) and the gear 2 (61) on the left vacuum interrupter (11) to rotate.

[0009] As a further preferred solution, it also includes a suction fan and a collection bag. Two suction fans are installed at the rear of the mechanism box, and the rear of the suction fans are both covered with a collection bag.

[0010] As a further preferred solution, a shielding plate is also included. Two shielding plates are installed outside the vacuum arc extinguishing chamber to cover the gear ring, gear one and gear two.

[0011] The beneficial effects are as follows: 1. The utility model covers the insulating porcelain sleeve by a covering ring to prevent dust from falling on the insulating porcelain sleeve; and then drives the gear one and the gear two to rotate by controlling the motor, thereby driving the gear ring and the scraper to rotate, and the scraping part of the scraper can automatically clean the dust accumulated on the covering ring, so that manual cleaning is unnecessary, the operation is simple, the workload of manual labor is reduced, the cleaning efficiency is improved, and it is convenient for the staff to carry out subsequent maintenance of the pole-mounted circuit breaker.

[0012] 2. The utility model shields the dust that falls after cleaning by means of a shielding plate, thereby preventing the dust from falling directly on the gear ring, gear one and gear two, thereby ensuring the smooth operation of the gear ring, gear one and gear two; and controls the suction fan to suck the dust that falls after cleaning into a collection bag, thereby preventing the dust from floating in the air and preventing the dust from falling on the column-mounted circuit breaker body again. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the positions of the mechanism box, the insulating porcelain sleeve and the annular convex part of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the scraper, the scraping part and the gear ring of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the components of the utility model, such as a gear ring, a gear one and a transmission rod.

[0017] Figure 5 It is a structural schematic diagram of the vacuum arc extinguishing chamber, the covering ring and the scraper components of the utility model.

[0018] Figure 6 It is a structural schematic diagram of the utility model including a gear 1, a servo motor and a transmission rod.

[0019] The names and serial numbers of the parts in the figure are: 1. Pole-mounted circuit breaker body, 10. Mechanism box, 11. Vacuum interrupter, 2. Insulating porcelain sleeve, 21. Annular protrusion, 3. Covering ring, 4. Scraper, 41. Scraping part, 5. Gear ring, 6. Gear 1, 61. Gear 2, 7. Servo motor, 8. Transmission rod, 91. Suction fan, 92. Collection bag, 101. Shielding plate. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0021] Embodiment 1: A pole-mounted circuit breaker that is easy to maintain, such as Figure 1-Figure 6 As shown, it includes a pole-mounted circuit breaker body 1, an insulating porcelain sleeve 2, a covering ring 3, a scraper 4, a gear ring 5, a gear 1 6, a gear 2 61, a servo motor 7 and a transmission rod 8. The pole-mounted circuit breaker body 1 includes a mechanism box 10 and a vacuum interrupter 11. The vacuum interrupter 11 has three and is arranged in sequence from left to right. Each vacuum interrupter 11 is sleeved with an insulating porcelain sleeve 2, and a plurality of annular protrusions 21 are arranged on the outer side of the insulating porcelain sleeve 2. A plurality of covering rings 3 are arranged on the insulating porcelain sleeve 2, and the annular protrusions 21 are in contact with adjacent covering rings 3. The covering rings 3 can shield the adjacent annular protrusions 21. The outer side of the middle and the outer side of the lower part of each vacuum interrupter 11 are rotated. The gear ring 5 is connected in a rotatable manner, and a scraper 4 is fixed on the upper part of the gear ring 5. A plurality of scraping parts 41 are provided at the rear of the scraper 4. The scraping parts 41 are in contact with the adjacent covering ring 3. The scraping parts 41 can scrape the covering ring 3 by rotating. The rear side of the middle part of each vacuum interrupter 11 is rotatably connected to a gear 1 6. A first transmission rod 8 is provided between the upper parts of the gear 1 6. The rear side of the lower part of each vacuum interrupter 11 is rotatably connected to a gear 2 61. The gear 2 61 and the gear 1 6 are meshed with the adjacent gear ring 5. A second transmission rod 81 is provided between the upper parts of the gear 2 61. The first transmission rod 8 and the second transmission rod 81 are respectively located at the eccentric positions of the gear 1 6 and the gear 2 61. Please refer to Figure 6 The rotation of gear 1 6 and gear 2 61 on the right vacuum interrupter 11 will respectively move the first transmission rod 8 and the second transmission rod 81, thereby rotating gear 1 6 and gear 2 61 on the middle vacuum interrupter 11 and gear 1 6 and gear 2 61 on the left vacuum interrupter 11, thereby driving the gear ring 5 to rotate. Two servo motors 7 are bolted to the rear of the right vacuum interrupter 11, and the output shafts of the servo motors 7 are connected to the adjacent gear 1 6 or gear 2 61.

[0022] By installing the covering ring 3 on the annular protrusion 21 of the insulating porcelain sleeve 2, all the dust falls on the covering ring 3, thereby ensuring the normal operation of the insulating porcelain sleeve 2. When a large amount of dust accumulates on the covering ring 3 on the insulating porcelain sleeve 2, the servo motor 7 is controlled, and the output shaft of the servo motor 7 drives the gear 1 6 and the gear 2 61 on the right vacuum arc chamber 11 to rotate, thereby causing the first transmission rod 8 and the second transmission rod 81 to reciprocate. Since the first transmission rod 8 and the second transmission rod 81 are respectively located at the eccentric positions of the gear 1 6 and the gear 2 61, the reciprocating movement of the first transmission rod 8 and the second transmission rod 81 will squeeze the gear on the middle vacuum arc chamber 11. Wheel 1 6 and gear 2 61 as well as gear 1 6 and gear 2 61 on the left vacuum interrupter 11 make gear 1 6 and gear 2 61 on the middle vacuum interrupter 11 as well as gear 1 6 and gear 2 61 on the left vacuum interrupter 11 rotate together. The rotation of gear 1 6 and gear 2 61 will drive the gear ring 5 to rotate, and then the scraper 4 will rotate. The rotation of the scraper 4 drives the scraping part 41 to rotate together, and the scraping part 41 can clean the dust accumulated on the covering ring 3, so that manual cleaning is not required, the operation is simple, the workload of manual work is reduced, the cleaning efficiency is improved, and it is convenient for the staff to perform subsequent maintenance of the pole-mounted circuit breaker.

[0023] Embodiment 2: Based on embodiment 1, Figure 1 As shown, it also includes a suction fan 91 and a collection bag 92. Two suction fans 91 are installed at the rear of the mechanism box 10. The suction fans 91 are flush with the vacuum interrupter 11, and the rear of the suction fans 91 is covered with a collection bag 92.

[0024] At the same time, the suction fan 91 is controlled so that the suction fan 91 sucks air into the pole-mounted circuit breaker body 1, so that the dust accumulated in the covering ring 3 can be sucked into the collection bag 92 through the suction fan 91, thereby preventing the dust from floating in the air and preventing the dust from falling on the pole-mounted circuit breaker body 1 again.

[0025] like Figure 2 and Figure 3 As shown, a shielding plate 101 is also included, and two shielding plates 101 are installed between the outside of the vacuum arc extinguishing chamber 11. When the scraping portion 41 of the scraper 4 cleans the dust on the shielding plate 101, the dust will fall down onto the shielding plate 101, thereby preventing the dust from falling directly onto the gear ring 5, gear 1 6 and gear 2 61, ensuring the smooth operation of the gear ring 5, gear 1 6 and gear 2 61, and improving the service life of the gear ring 5, gear 1 6 and gear 2 61.

[0026] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments may be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A pole-mounted circuit breaker that is easy to maintain, comprising a pole-mounted circuit breaker body (1) and an insulating porcelain sleeve (2), wherein the pole-mounted circuit breaker body (1) comprises a mechanism box (10) and a vacuum interrupter (11), wherein the vacuum interrupter (11) has three vacuum interrupters and is sequentially arranged at left, middle and right positions, and each vacuum interrupter (11) is sleeved with an insulating porcelain sleeve (2), wherein the characteristics are: It also includes a covering ring (3), a scraper (4), a gear ring (5), a gear one (6), a gear two (61), a servo motor (7) and a transmission rod (8). The insulating porcelain sleeve (2) is provided with a plurality of covering rings (3). The middle and lower parts of each vacuum interrupter (11) are rotatably connected to the gear ring (5). The upper part of the gear ring (5) is connected to a scraper (4) for cleaning the covering ring (3). The middle part of each vacuum interrupter (11) is also rotatably connected to the gear one (6). A first transmission rod (8) is arranged between the upper parts of gear one (6), and each vacuum interrupter (11) is also rotatably connected to gear two (61) at the lower part, and a second transmission rod (81) is arranged between the upper parts of gear two (61), and gear two (61) and gear one (6) are both meshed with adjacent gear rings (5). Two servo motors (7) are installed on the right vacuum interrupter (11), and the output shafts of the servo motors (7) are connected to adjacent gear one (6) or gear two (61).

2. A pole mounted circuit breaker for easy maintenance as claimed in claim 1, characterized in that: A plurality of annular protrusions (21) are arranged on the outside of the insulating porcelain sleeve (2), and the annular protrusions (21) are all in contact with adjacent covering rings (3).

3. A pole mounted circuit breaker for easy maintenance as claimed in claim 2, characterized in that: A plurality of scraping parts (41) are arranged at the rear of the scraper (4), and the scraping parts (41) are all in contact with the adjacent covering rings (3). The scraping parts (41) can scrape the covering rings (3) by rotating.

4. A pole mounted circuit breaker for easy maintenance as claimed in claim 3, characterized in that: The first transmission rod (8) and the second transmission rod (81) are respectively located at the eccentric positions of the gear 1 (6) and the gear 2 (61). The rotation of the gear 1 (6) and the gear 2 (61) on the right vacuum interrupter (11) will respectively cause the first transmission rod (8) and the second transmission rod (81) to move, thereby causing the gear 1 (6) and the gear 2 (61) on the middle vacuum interrupter (11) and the gear 1 (6) and the gear 2 (61) on the left vacuum interrupter (11) to rotate.

5. A pole mounted circuit breaker for easy maintenance as claimed in claim 4, characterized in that: It also includes a suction fan (91) and a collection bag (92). Two suction fans (91) are installed at the rear of the mechanism box (10), and the rear of the suction fans (91) are both covered with a collection bag (92).

6. A pole mounted circuit breaker for easy maintenance as claimed in claim 5, characterized in that: It also includes a shielding plate (101). Two shielding plates (101) are installed outside the vacuum arc extinguishing chamber (11) for covering the gear ring (5), gear one (6) and gear two (61).

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