Primary and secondary fusion complete column-mounted circuit breaker

Abstract

The utility model relates to the field of circuit breakers, in particular to a primary and secondary fusion complete column-mounted circuit breaker, which comprises a body, a rotating column, an opening and closing handle, a protection ring and a rubber ring, and is characterized in that the body is provided with a containing cavity, the outer wall of the body is provided with a mounting port, the mounting port is communicated with the containing cavity, and the rotating column is rotatably connected to the inner wall of the mounting port around the axis of the rotating column; the end, away from the containing cavity, of the rotating column is fixedly connected to the opening and closing handle, the protection ring is arranged between the body and the opening and closing handle, the periphery of the rotating column is sleeved with the protection ring, the protection ring is fixedly connected to the outer wall of the body, the outer wall of the rubber ring is coaxially and fixedly connected to the inner wall of the protection ring, and the inner wall of the rubber ring abuts against the rotating column. The protection ring protects the rotating column, and the rubber ring protects the contact area of the rotating column and the inner wall of the mounting port, thereby reducing the probability that the rotating column is stuck in the mounting port due to rusting, enabling the rotating column to rotate stably, enabling the circuit breaker to be used stably, and prolonging the service life of the circuit breaker.

Description

Technical Field

[0001] The present application relates to the field of circuit breakers, and in particular to a primary and secondary integrated pole-mounted circuit breaker. Background Art

[0002] With the continuous development of the national economy, the structure and load characteristics of power grids are becoming increasingly complex. my country's power industry continues to develop and improve, placing stringent demands on power quality and operational reliability. Currently, there is a growing demand for standardization and simplification in high-voltage power grids to improve reliability and reduce installation and operating costs. As essential control and protection equipment in power systems, high-voltage vacuum circuit breakers offer high reliability, large interrupting capacity, long maintenance cycles, and are suitable for frequent operation. They are finding increasing application in various fields, including the power industry, industrial and mining enterprises, and railway transportation.

[0003] A pole-mounted circuit breaker is a circuit breaker installed and operated on an electric pole. A circuit breaker is a switching device that can close, carry and interrupt the current under normal circuit conditions and can close, carry and interrupt the current under abnormal circuit conditions within a specified time. A primary and secondary integrated pole-mounted circuit breaker is a common type of pole-mounted circuit breaker.

[0004] The integrated primary and secondary pole-mounted circuit breaker is a power distribution device that integrates breaking, control, and protection functions. It deeply integrates primary equipment (such as the circuit breaker itself) and secondary equipment (such as measurement, control, and protection devices) to form a standardized pole-mounted circuit breaker device. This integration aims to achieve device integration, intelligence, and efficiency, reduce connection and coordination issues between devices, and improve system reliability and stability.

[0005] After a primary / secondary integrated pole-mounted circuit breaker is installed on a pole tower, manual opening and closing operations are a fundamental and crucial function of the circuit breaker. However, pole-mounted circuit breakers are typically used outdoors, where the manual opening and closing handles are susceptible to rust and passivation due to exposure to wind, sun, and rain. Damaged manual opening and closing handles can become stuck during rotation, affecting the breaker's proper operation and shortening the service life of the integrated primary / secondary circuit breaker. Utility Model Content

[0006] In order to extend the service life of the circuit breaker, the present application provides a primary and secondary integrated pole-mounted circuit breaker.

[0007] The present application provides a primary and secondary integrated pole-mounted circuit breaker that adopts the following technical solution:

[0008] A primary and secondary integrated pole-mounted circuit breaker comprises a body, a rotating column, an opening and closing handle, a protective ring, and a rubber ring. The body is provided with an accommodating cavity, the outer wall of the body is provided with a mounting opening, the mounting opening being connected to the accommodating cavity, the rotating column is rotatably connected about its own axis to the inner wall of the mounting opening, the end of the rotating column facing away from the accommodating cavity is fixedly connected to the opening and closing handle, the protective ring is provided between the body and the opening and closing handle, the protective ring is sleeved on the outer circumference of the rotating column, the protective ring is fixedly connected to the outer wall of the body, the outer wall of the rubber ring is coaxially fixedly connected to the inner wall of the protective ring, and the inner wall of the rubber ring abuts the rotating column.

[0009] By adopting the above technical solution, the protective ring protects the rotating column, and the rubber ring protects the area where the rotating column contacts the inner wall of the mounting opening, thereby reducing the probability of the rotating column rusting and getting stuck in the mounting opening, allowing the rotating column to rotate stably, ensuring stable use of the circuit breaker, and extending the service life of the circuit breaker.

[0010] Preferably, it further comprises a bearing, which is provided between the body and the rubber ring, wherein the outer wall of the bearing is coaxially fixedly connected to the inner wall of the protective ring, and the inner wall of the bearing is coaxially fixedly connected to the outer wall of the rotating column.

[0011] By adopting the above technical solution, the bearing reduces the friction between the protection ring and the rotating column, so that the protection ring rotates stably.

[0012] Preferably, it also includes an oil tank, which is fixedly connected to the outer wall of the main body, the oil tank is provided with an oil cavity, the lower end of the oil tank is provided with an oil outlet, the oil outlet is connected to the oil cavity, the protective ring is provided with an oil inlet, the oil inlet is connected to the protective ring, the oil inlet is provided between the main body and the bearing, and the oil inlet is connected to the oil outlet.

[0013] By adopting the above technical solution, the oil enters the protective ring, the oil protects the rotating column, making the rotating column not easy to rust, the oil lubricates the bearing, and the rubber ring prevents the oil from leaking, thereby extending the service life of the circuit breaker.

[0014] Preferably, it further comprises a wiping cotton, which is fixedly connected to the inner circumference of the protective ring, one end of the wiping cotton covers the oil inlet, and the other end of the wiping cotton abuts against the outer wall of the rotating column.

[0015] By adopting the above technical solution, the wiping cotton wipes the outer wall of the rotating column, so that the outer wall of the rotating column is covered with an oil film, making the rotating column less likely to rust and extending the service life of the circuit breaker.

[0016] Preferably, it also includes a first one-way valve, a feed port is provided at the upper end of the oil tank, the feed port is connected to the oil chamber, the first one-way valve is fixedly connected to the inner wall of the feed port, and the first one-way valve is used to control the one-way conduction of the feed port from the outside to the oil chamber.

[0017] By adopting the above technical solution, the first one-way valve makes it difficult for oil to leak, facilitates the feeding of oil and the entry of external air into the oil tank, and ensures the balance of air pressure inside and outside the oil tank.

[0018] Preferably, it also includes an airbag and a second one-way valve. The outer wall of the oil tank is provided with a connecting port. The outer wall of the airbag is fixedly connected to the inner wall of the connecting port. The bag mouth of the airbag is connected to the connecting port. The outer wall of the airbag is used for the opening and closing handle to abut. The second one-way valve is fixedly connected to the inner wall of the oil outlet. The second one-way valve is used to control the one-way conduction of the oil outlet from the oil chamber to the oil inlet.

[0019] By adopting the above technical solution, the airbag is squeezed when the opening and closing handle is working, causing the airbag to deform, squeezing the oil in the oil chamber into the protective ring to lubricate the rotating column and bearing, thereby extending the service life of the circuit breaker. The airbag can restore its deformation and is convenient for repeated use.

[0020] Preferably, there are two connecting ports, which are respectively arranged on both sides of the axis of the rotating column and are arranged opposite to each other.

[0021] By adopting the above technical solution, the two connection ports correspond to the two air bags, and the opening and closing handles can push the air bags to squeeze and deform in any direction to lubricate the rotating column.

[0022] Preferably, it further comprises a pull ring, which is fixedly connected to the end of the opening and closing handle.

[0023] By adopting the above technical solution, the pull ring is convenient for pulling the upper rod to rotate the opening and closing handle, which is convenient for users to use.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The protective ring protects the rotating column, and the rubber ring protects the area where the rotating column contacts the inner wall of the mounting hole, reducing the probability of the rotating column getting rusted and stuck in the mounting hole. This allows the rotating column to rotate stably, ensuring stable use of the circuit breaker and extending the service life of the circuit breaker.

[0026] 2. The oil enters the protective ring and protects the rotating column, making it less likely to rust. The oil lubricates the bearing, and the rubber ring prevents the oil from leaking, thus extending the service life of the circuit breaker.

[0027] 3. When the opening and closing handles are working, they squeeze the airbag, causing it to deform. The oil in the oil chamber is squeezed into the protective ring to lubricate the rotating column and bearings, extending the service life of the circuit breaker. The airbag can restore its deformation and is easy to use repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a primary and secondary integrated pole-mounted circuit breaker.

[0029] Figure 2 It is a partial cross-sectional view of a primary and secondary integrated pole-mounted circuit breaker.

[0030] Figure 3 It is a schematic diagram of the overall structure of the rotating column, the opening and closing handle, the pull ring and the protection component 5.

[0031] Explanation of the accompanying symbols: 1. Main body; 11. Vacuum interrupter; 12. Aviation socket; 13. Energy storage indicator rod; 14. Circuit breaker energy storage handle; 15. Opening and closing indicator rod; 16. Accommodating chamber; 17. Mounting port; 2. Rotating column; 3. Opening and closing handle; 4. Pull ring; 41. Hanging port; 5. Protection component; 51. Protection ring; 511. Oil inlet; 52. Rubber ring; 53. Bearing; 54. Oil tank; 541. Avoidance surface; 542. Oil chamber; 543. Oil outlet; 544. Feed port; 545. Connecting port; 55. Wiping cotton; 56. First one-way valve; 57. Airbag; 58. Second one-way valve. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The embodiment of the present application discloses a primary and secondary integrated pole mounted circuit breaker. Figure 1 A primary and secondary integrated pole-mounted circuit breaker includes a body 1, a rotating column 2, a switching handle 3, a pull ring 4 and a protection component 5.

[0034] The upper end of the main body 1 is fixedly connected to the vacuum interrupter 11, the outer wall of the main body 1 is fixedly connected to the aviation socket 12, and the outer wall of the main body 1 is hinged with an energy storage indicator rod 13, a circuit breaker energy storage handle 14 and an opening and closing indicator rod 15, and the hinge axes of the energy storage indicator rod 13, the circuit breaker energy storage handle 14 and the opening and closing indicator rod 15 are parallel to each other.

[0035] Reference Figure 1 and Figure 2 The body 1 is provided with an accommodating cavity 16, and the outer wall of the body 1 is provided with a mounting opening 17, which is connected to the accommodating cavity 16. The aviation socket 12, the energy storage indicator rod 13, the circuit breaker energy storage handle 14, the opening and closing indicator rod 15 and the mounting opening 17 are all arranged on the same outer wall of the body 1. The energy storage indicator rod 13 is arranged between the mounting opening 17 and the aviation socket 12, the circuit breaker energy storage handle 14 is arranged between the energy storage indicator rod 13 and the aviation socket 12, and the opening and closing indicator rod 15 is arranged between the circuit breaker energy storage handle 14 and the aviation socket 12.

[0036] The rotating column 2 rotates around its own axis and is connected to the inner wall of the mounting opening 17. The end of the rotating column 2 facing away from the accommodating cavity 16 is fixedly connected to the opening and closing handle 3. The distances between the two ends of the opening and closing handle 3 and the rotating column 2 are equal. The length direction of the opening and closing handle 3 is perpendicular to the axis of the rotating column 2. There are two pull rings 4, which are respectively fixedly connected to the two ends of the opening and closing handle 3. The pull ring 4 is provided with a hanging opening 41, and the axis of the hanging opening 41 is parallel to the axis of the rotating column 2.

[0037] Reference Figure 2 The protection assembly 5 includes a protection ring 51, a rubber ring 52, a bearing 53, an oil tank 54, a wiping cotton 55, a first one-way valve 56, an airbag 57 and a second one-way valve 58.

[0038] The protective ring 51 is positioned between the main body 1 and the opening and closing handle 3. It fits over the outer circumference of the rotating column 2. The end of the protective ring 51 facing the main body 1 is fixedly connected to the outer wall of the main body 1. The outer wall of the rubber ring 52 is coaxially fixedly connected to the inner wall of the protective ring 51. The inner wall of the rubber ring 52 abuts the outer wall of the rotating column 2. The end of the rubber ring 52 facing away from the main body 1 is flush with the end of the protective ring 51 facing away from the main body 1. A bearing 53 is positioned between the main body 1 and the rubber ring 52. The outer wall of the bearing 53 is coaxially fixedly connected to the inner wall of the protective ring 51, and the inner wall of the bearing 53 is coaxially fixedly connected to the outer wall of the rotating column 2.

[0039] Reference Figure 2 and Figure 3 The oil tank 54 is located directly above the protective ring 51. The outer wall of the oil tank 54 is fixedly connected to the outer wall of the main body 1. A relief surface 541 is provided on both sides of the oil tank 54. The two relief surfaces 541 are located on either side of the axis of the rotating column 2. The relief surfaces 541 are inclined, and the distance between the two relief surfaces 541 increases as they move away from the rotating column 2. The oil tank 54 has an oil chamber 542. The lower end of the oil tank 54 has an oil outlet 543, which is connected to the oil chamber 542. The upper end of the protective ring 51 has an oil inlet 511, which is located between the main body 1 and the bearing 53 and is connected to the oil outlet 543. A wiper 55 is fixedly connected to the downward-facing inner wall of the protective ring 51. One end of the wiper 55 covers the oil inlet 511, and the other end of the wiper 55 abuts the outer wall of the rotating column 2, thereby abutting the bearing 53.

[0040] The top end of the oil tank 54 is provided with a feed port 544, which communicates with the oil chamber 542. A first one-way valve 56 is fixedly connected to the inner wall of the feed port 544 and controls one-way flow from the feed port 544 into the oil chamber 542. The outer wall of the oil tank 54 is provided with a connection port 545, located above the avoidance surface 541. Two connection ports 545 are provided, one on either side of the axis of the rotating column 2 and facing each other. The outer wall of the airbag 57 is fixedly connected to the inner wall of the connection port 545, and the opening of the airbag 57 communicates with the connection port 545. The outer wall of the airbag 57 is used to abut the opening and closing handle 3. A second one-way valve 58 is fixedly connected to the inner wall of the oil outlet 543 and controls one-way flow from the oil chamber 542 to the oil inlet 511.

[0041] The implementation principle of the integrated primary and secondary pole-mounted circuit breaker in the embodiment of the present application is as follows: when the upper rod is extended into the hanging opening 41 to control the rotation of the opening and closing handle 3, the opening and closing handle 3 abuts against the airbag 57, causing the airbag 57 to deform, and the oil penetrates the wiping cotton through the second one-way valve 58. The wiping cotton wipes the rotating column 2 and the bearing 53, and the rubber ring 52 protects the bearing 53, thereby reducing the probability of rust, extending the service life of the rotating column 2, ensuring the stable use of the opening and closing handle 3, and extending the service life of the integrated primary and secondary pole-mounted circuit breaker.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A primary and secondary integrated pole mounted circuit breaker, characterized by: The invention comprises a main body (1), a rotating column (2), a switch opening and closing handle (3), a protective ring (51) and a rubber ring (52), wherein the main body (1) is provided with a receiving cavity (16), the outer wall of the main body (1) is provided with a mounting opening (17), the mounting opening (17) is connected to the receiving cavity (16), the rotating column (2) is connected to the inner wall of the mounting opening (17) by rotating around its own axis, the end of the rotating column (2) away from the receiving cavity (16) is fixedly connected to the switch opening and closing handle (3), the protective ring (51) is provided between the main body (1) and the switch opening and closing handle (3), the protective ring (51) is sleeved on the outer periphery of the rotating column (2), the protective ring (51) is fixedly connected to the outer wall of the main body (1), the outer wall of the rubber ring (52) is coaxially fixedly connected to the inner wall of the protective ring (51), and the inner wall of the rubber ring (52) abuts the rotating column (2).

2. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: It also includes a bearing (53), which is arranged between the body (1) and the rubber ring (52), the outer wall of the bearing (53) is coaxially fixedly connected to the inner wall of the protective ring (51), and the inner wall of the bearing (53) is coaxially fixedly connected to the outer wall of the rotating column (2).

3. The primary and secondary integrated pole mounted circuit breaker according to claim 2, characterized in that: The invention also includes an oil tank (54), the oil tank (54) being fixedly connected to the outer wall of the body (1), the oil tank (54) being provided with an oil cavity (542), the lower end of the oil tank (54) being provided with an oil outlet (543), the oil outlet (543) being connected to the oil cavity (542), the protective ring (51) being provided with an oil inlet (511), the oil inlet (511) being connected to the inside of the protective ring (51), the oil inlet (511) being provided between the body (1) and the bearing (53), the oil inlet (511) being connected to the oil outlet (543).

4. The primary and secondary integrated pole mounted circuit breaker according to claim 3, characterized in that: It also includes a wiping cotton, which is fixedly connected to the inner wall of the protective ring (51), one end of the wiping cotton covers the oil inlet (511), and the other end of the wiping cotton abuts against the outer wall of the rotating column (2).

5. The primary and secondary integrated pole mounted circuit breaker according to claim 3, characterized in that: The oil tank (54) further includes a first one-way valve (56). The upper end of the oil tank (54) is provided with a feed port (544). The feed port (544) is connected to the oil chamber (542). The first one-way valve (56) is fixedly connected to the inner wall of the feed port (544). The first one-way valve (56) is used to control the one-way conduction of the feed port (544) from the outside to the oil chamber (542).

6. The primary and secondary integrated pole mounted circuit breaker according to claim 5, characterized in that: The oil tank (54) further comprises an air bag (57) and a second one-way valve (58). The outer wall of the oil tank (54) is provided with a connecting port (545). The outer wall of the air bag (57) is fixedly connected to the inner wall of the connecting port (545). The opening of the air bag (57) is communicated with the connecting port (545). The outer wall of the air bag (57) is used for abutment by the opening and closing handle (3). The second one-way valve (58) is fixedly connected to the inner wall of the oil outlet (543). The second one-way valve (58) is used to control the one-way conduction of the oil outlet (543) from the oil chamber (542) to the oil inlet (511).

7. The primary and secondary integrated pole mounted circuit breaker according to claim 6, characterized in that: There are two connecting ports (545), and the two connecting ports (545) are respectively arranged on both sides of the axis of the rotating column (2), and the two connecting ports (545) are arranged opposite to each other.

8. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: It also includes a pull ring (4), which is fixedly connected to the end of the opening and closing handle (3).

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