Insulated primary and secondary fusion pole-mounted circuit breaker

Abstract

The utility model discloses an insulated primary and secondary fusion pole-mounted circuit breaker, and belongs to the field of circuit breakers. The utility model relates to an insulated primary and secondary fusion pole-mounted circuit breaker which comprises a fixed block, a first insulator is arranged on the fixed block, a connecting pole is arranged at one end of the first insulator far away from the fixed block, the insulated primary and secondary fusion pole-mounted circuit breaker further comprises a wire access pipe, and the wire access pipe is arranged on the connecting pole. The end, away from the connecting column, of the wire access pipe is provided with a wire insertion opening, the end, away from the first insulator, of the connecting column is provided with a second insulator, and the upper end of the second insulator is provided with a contact. According to the pole-mounted circuit breaker, the problems that an existing pole-mounted circuit breaker wraps the connecting position of a wire and a contact together through a rubber insulation sleeve, insulation wrapping treatment can be carried out only when the wire and the contact are connected firstly, the mounting position of the pole-mounted circuit breaker is generally high, danger may occur when a worker climbs a high place, and high-altitude operation is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to an insulated primary and secondary fusion column mounted circuit breaker. 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. Sulfur hexafluoride circuit breakers have many advantages, such as strong opening capacity, many continuous breaking times, frequent operation, low operating noise, no fire hazard, etc. It is a good oil-free equipment.

[0003] A Chinese patent with publication number CN217933587U discloses an insulated primary and secondary fusion column mounted circuit breaker including a circuit breaker, a splitter and a handle are installed at one end of the circuit breaker, a mobile frame is welded to one side of the circuit breaker, an insulating pillar is threadedly connected to one side of the circuit breaker, a contact is fixedly connected to the other end of the insulating pillar, an insulating mechanism is arranged on the outside of the contact, and a mounting mechanism is arranged below the circuit breaker. The insulated primary and secondary fusion column mounted circuit breaker is provided with a fixing ring, a first rubber insulating sleeve, a second rubber insulating sleeve, a fixing block and a bolt. When in use, the wire is first connected to the contact, and then the first rubber insulating sleeve and the second rubber insulating sleeve are rotated to an aligned position, and then the bolt is used to penetrate the fixing block, and then the first rubber insulating sleeve and the second rubber insulating sleeve are fixed. Because the rubber is elastic, the connection between the wire and the contact can be wrapped inside, thereby achieving the purpose of insulation from the outside.

[0004] The pole-mounted circuit breaker of the above patent uses a rubber insulating sleeve to wrap the connection between the wire and the contact, but the wire and the contact must be connected before the insulation wrapping process can be performed. The installation position of the pole-mounted circuit breaker is generally high, which may be dangerous when the workers climb to a high place, and it is inconvenient to operate at high altitude. Utility Model Content

[0005] The utility model aims to provide an insulated primary and secondary fusion column mounted circuit breaker, wherein a support block is arranged at the upper end of the second insulator, a connecting plate is arranged on the outer surface of the support block, a triangular rubber block is arranged on the outer surface of the connecting plate, and the support block is in a circular ring shape, and a contact is arranged at the center of the support block on the second insulator. When a worker connects an electric wire and a contact to each other, the electric wire passes through a gap between the triangular rubber blocks arranged on the connecting plate and is connected to the contact. At this time, due to the elasticity of the triangular rubber block itself, the triangular rubber block is deformed and bent when passed by the electric wire, and after the electric wire passes through, the triangular rubber block rebounds and recovers, and can be blocked at the upper end of the electric wire and the contact, not only blocking the entry of rainwater but also wrapping the connection between the electric wire and the contact in the support block, preventing the worker from accidentally touching and causing electric shock, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulated primary-secondary fusion column-mounted circuit breaker, comprising a fixed block, a first insulator is arranged on the fixed block, a connecting column is arranged on the end of the first insulator away from the fixed block, and also comprises a wire access tube, the wire access tube is arranged on the connecting column, a wire insertion port is opened on the end of the wire access tube away from the connecting column, a second insulator is arranged on the end of the connecting column away from the first insulator, a contact is arranged on the upper end of the second insulator, a support block is arranged around the contact of the second insulator, a connecting plate is arranged on the outer surface of the support block, a triangular rubber block is arranged on the outer surface of the connecting plate, a connecting base is arranged at the lower end of the fixed block, and a mounting block is arranged at the rear end of the connecting base.

[0007] Preferably, an opening and closing switch is provided on the mounting block, and the opening and closing switch is bolted to the mounting block.

[0008] Preferably, a fixing plate is provided at the lower end of the connecting base, and the fixing plate is welded to the connecting base.

[0009] Preferably, the fixing plate is provided with fixing bolts, and the fixing bolts pass through the fixing plate and are threadedly connected to the fixing plate.

[0010] Preferably, limiting tubes are provided on both ends of the connection base, and the limiting tubes are welded to the connection base.

[0011] Preferably, a handle is provided in the limiting tube, and the handle is movably and limitably connected to the limiting tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model comprises a support block arranged at the upper end of the second insulator, a connecting plate arranged on the outer surface of the support block, a triangular rubber block arranged on the outer surface of the connecting plate, and the support block is in a circular ring shape. A contact is arranged at the center of the support block on the second insulator. When a worker connects an electric wire with the contact, the electric wire passes through the gap between the triangular rubber blocks arranged on the connecting plate and is connected with the contact. At this time, due to the elasticity of the triangular rubber block itself, the electric wire is deformed and bent when passing through the triangular rubber block. After the electric wire passes through, the triangular rubber block rebounds and recovers, and can block the electric wire and the upper end of the contact, thereby not only blocking the electric wire, but also blocking the electric wire from passing through the triangular rubber block. The entry of rainwater and the connection between the wire and the contact are wrapped in the support block to prevent the staff from accidentally touching and causing electric shock. This insulation protection structure does not require the staff to perform high-altitude operations. It is only necessary to install the support block and the connecting plate on the unpowered circuit breaker on the ground. This effectively avoids the problem that the existing pole-mounted circuit breaker uses a rubber insulating sleeve to wrap the connection between the wire and the contact together, but the wire and the contact must be connected before the insulation wrapping treatment can be performed. The installation position of the pole-mounted circuit breaker is generally high, and it may be dangerous for the staff to climb high, and it is inconvenient to operate at high altitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall main structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall right side structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the overall rear end structure of the utility model.

[0018] In the figure: 1. Connecting base; 2. Fixing plate; 3. Fixing bolt; 4. Limiting tube; 5. Handle; 6. Fixing block; 7. First insulator; 8. Connecting column; 9. Wire access tube; 10. Wire insertion port; 11. Second insulator; 12. Contact; 13. Support block; 14. Connecting plate; 15. Triangular rubber block; 16. Mounting block; 17. Opening and closing switch. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In order to solve the problem that in the prior art, the connection between the wire and the contact is wrapped together by a rubber insulating sleeve in the pole-mounted circuit breaker, but the wire and the contact must be connected before the insulation wrapping process can be performed, and the installation position of the pole-mounted circuit breaker is generally high, which may be dangerous for workers when climbing high, and the problem that high-altitude operation is inconvenient, this embodiment provides the following technical solutions:

[0021] An insulated primary and secondary fusion column-mounted circuit breaker comprises a fixed block 6, a first insulator 7 is arranged on the fixed block 6, a connecting column 8 is arranged on the end of the first insulator 7 away from the fixed block 6, and a wire access tube 9 is arranged on the connecting column 8, a wire access tube 9 is provided with a wire insertion port 10 on the end away from the connecting column 8, a second insulator 11 is arranged on the end of the connecting column 8 away from the first insulator 7, a contact 12 is arranged on the upper end of the second insulator 11, a support block 13 is arranged around the contact 12 of the second insulator 11, a connecting plate 14 is arranged on the outer surface of the support block 13, a triangular rubber block 15 is arranged on the outer surface of the connecting plate 14, a connecting base 1 is arranged at the lower end of the fixed block 6, a mounting block 16 is arranged at the rear end of the connecting base 1, an opening and closing switch 17 is arranged on the mounting block 16, the opening and closing switch 17 is bolted to the mounting block 16, a fixing plate 2 is arranged at the lower end of the connecting base 1, and the fixing plate 2 is welded to the connecting base 1;

[0022] In this embodiment, please refer to Figure 1-Figure 4 A support block 13 is provided at the upper end of the second insulator 11, and a connecting plate 14 is provided on the outer surface of the support block 13. A triangular rubber block 15 is provided on the outer surface of the connecting plate 14, and the support block 13 is in a circular shape. A contact 12 is provided at the center of the support block 13 of the second insulator 11. When the staff connects the wire and the contact 12 to each other, the wire passes through the gap between the triangular rubber blocks 15 provided on the connecting plate 14 and is connected to the contact 12. At this time, due to the elasticity of the triangular rubber block 15 itself, it is deformed and bent when passed by the wire. After the wire passes through, the triangular rubber block 15 rebounds and recovers, which can block the wire and the upper end of the contact 12, not only blocking the entry of rainwater, but also wrapping the connection between the wire and the contact 12 in the support block 13, preventing the staff from accidentally touching and causing electric shock. Moreover, this kind of insulation protection structure does not require the staff to perform high-altitude operations, and only needs to install the support block 13 and the connecting plate 14 on the unpowered circuit breaker on the ground;

[0023] In this embodiment, please refer to Figure 1-Figure 2 , a fixing bolt 3 is provided on the fixing plate 2, the fixing bolt 3 passes through the fixing plate 2 and is threadedly connected to the fixing plate 2, a limiting tube 4 is provided on both ends of the connecting base 1, the limiting tube 4 is welded and connected to the connecting base 1, a handle 5 is provided in the limiting tube 4, and the handle 5 is movably limitedly connected to the limiting tube 4;

[0024] Working principle: A support block 13 is provided at the upper end of the second insulator 11, and a connecting plate 14 is provided on the outer surface of the support block 13. A triangular rubber block 15 is provided on the outer surface of the connecting plate 14, and the support block 13 is in a circular ring shape. A contact 12 is provided at the center of the support block 13 of the second insulator 11. When the staff connects the wire and the contact 12 to each other, the wire passes through the gap between the triangular rubber blocks 15 provided on the connecting plate 14 and is connected to the contact 12. At this time, due to the elasticity of the triangular rubber block 15 itself, it is deformed and bent when passed by the wire. After the wire passes through, the triangular rubber block 15 rebounds and recovers, which can block the wire and the upper end of the contact 12, not only blocking the entry of rainwater but also wrapping the connection between the wire and the contact 12 in the support block 13, preventing the staff from accidentally touching and causing electric shock. Moreover, this kind of insulating protection structure does not require the staff to perform high-altitude operations, and only needs to install the support block 13 and the connecting plate 14 on the ground on the circuit breaker that is not powered on.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An insulated primary-secondary fusion column-mounted circuit breaker, comprising a fixed block (6), a first insulator (7) being arranged on the fixed block (6), and a connecting column (8) being arranged on an end of the first insulator (7) away from the fixed block (6); Features: The invention also comprises a wire access tube (9), wherein the wire access tube (9) is arranged on the connecting column (8), and a wire insertion port (10) is provided on the end of the wire access tube (9) away from the connecting column (8); a second insulator (11) is provided on the end of the connecting column (8) away from the first insulator (7); a contact (12) is provided on the upper end of the second insulator (11); a support block (13) is provided around the contact (12); a connecting plate (14) is provided on the outer surface of the support block (13); a triangular rubber block (15) is provided on the outer surface of the connecting plate (14); a connecting base (1) is provided at the lower end of the fixing block (6); and a mounting block (16) is provided at the rear end of the connecting base (1).

2. The insulated primary and secondary fusion column mounted circuit breaker according to claim 1, characterized in that: An opening and closing switch (17) is arranged on the mounting block (16), and the opening and closing switch (17) is bolted to the mounting block (16).

3. The insulated primary and secondary fusion column mounted circuit breaker according to claim 1, characterized in that: A fixing plate (2) is provided at the lower end of the connecting base (1), and the fixing plate (2) is connected to the connecting base (1) by welding.

4. The insulated primary and secondary fusion column mounted circuit breaker according to claim 3, characterized in that: The fixing plate (2) is provided with a fixing bolt (3), and the fixing bolt (3) passes through the fixing plate (2) and is threadedly connected to the fixing plate (2).

5. The insulated primary and secondary fusion column mounted circuit breaker according to claim 1, characterized in that: Limiting tubes (4) are provided on both ends of the connection base (1), and the limiting tubes (4) are connected to the connection base (1) by welding.

6. The insulated primary and secondary fusion column mounted circuit breaker according to claim 5, characterized in that: A handle (5) is provided inside the position limiting tube (4), and the handle (5) is movably connected to the position limiting tube (4) in a position limiting manner.

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