Built-in disconnecting switch deep fusion pole-mounted circuit breaker

Abstract

The utility model relates to the technical field of pole-mounted circuit breakers, and discloses a built-in disconnecting switch deep fusion pole-mounted circuit breaker, which comprises a mechanism box shell, a first control mechanism, a second control mechanism and an interlocking piece, the second control mechanism comprises a disconnecting switch operating shaft and an interlocking plate, and the interlocking piece comprises an interlocking limiting block and an interlocking pin. The mechanism box shell is provided with an inner cavity, the first control mechanism, the second control mechanism and the interlocking piece are all arranged in the inner cavity of the mechanism box shell, the disconnecting switch operation shaft is rotationally connected with the inner cavity of the mechanism box shell, the interlocking plate is arranged on the disconnecting switch operation shaft in a sleeving mode, and the interlocking limiting block is arranged in the inner cavity of the mechanism box shell. The interlocking pin is used for preventing the interlocking plate from rotating, one end of the interlocking pin is connected with the first control mechanism, and the other end of the interlocking pin is connected into the interlocking limiting block in a sliding mode. According to the utility model, the first control mechanism is connected with the second control mechanism through the interlocking member, thereby preventing misoperation of the live-line disconnecting switch.

Description

Technical Field

[0001] This utility model relates to the field of pole-mounted circuit breaker technology, specifically a pole-mounted circuit breaker with a built-in disconnecting switch. Background Technology

[0002] The 10kV integrated primary and secondary pole-mounted circuit breaker is an outdoor power distribution device with a rated voltage of 12kV and a three-phase AC frequency of 50Hz. It is mainly used for breaking and closing load current, overload current, and short-circuit current in electronic systems. It is suitable for protection and control in substations and industrial and mining enterprise power distribution systems, as well as in rural power grids where frequent operations are required. It can also be used as a sectionalizing switch in the power grid. With the addition of a controller, it can achieve distribution network automation, and has the functions of calculating active power, reactive power, power factor, frequency, and electrical energy. It has adaptive integrated local feeder automation functions. Typically, the circuit breaker is combined with a disconnecting switch to form a combined electrical appliance, and the equipment and line wiring in the power grid are relatively complex.

[0003] Currently, most disconnecting switches used in 10kV pole-mounted circuit breakers in power distribution networks are direct-acting or stand-alone. During operation, opening and closing these switches is cumbersome for staff, requiring independent operation. Furthermore, the interlocking mechanisms in existing technologies are prone to accidental activation during operation.

[0004] To address the aforementioned issues, we propose a deeply integrated pole-mounted circuit breaker with a built-in disconnector. Summary of the Invention

[0005] The purpose of this invention is to provide a pole-mounted circuit breaker with a built-in disconnector switch that is deeply integrated to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pole-mounted circuit breaker with built-in disconnector, comprising a mechanism housing, a first control mechanism, a second control mechanism, and interlocking components;

[0007] The second control mechanism includes the disconnector switch operating shaft and the interlocking plate; the interlocking components include the interlocking limit block and the interlocking pin.

[0008] The mechanism housing has an inner cavity; the first control mechanism, the second control mechanism, and the interlocking components are all disposed in the inner cavity of the mechanism housing; the disconnecting switch operating shaft is rotatably connected to the inner cavity of the mechanism housing; the interlocking plate is sleeved on the disconnecting switch operating shaft;

[0009] The interlocking limit block is disposed in the inner cavity of the mechanism housing; one end of the interlocking pin is connected to the first control mechanism; the other end of the interlocking pin is slidably connected to the interlocking limit block; when the interlocking plate and the interlocking limit block are inserted and assembled, the interlocking pin abuts against the side wall of the interlocking plate.

[0010] Preferably, the first control mechanism includes a spring operating mechanism, a circuit breaker drive rod, a tripping spring pull rod, and a tripping spring;

[0011] The spring operating mechanism is disposed in the inner cavity of the mechanism housing; the driving end of the spring operating mechanism is connected to the circuit breaker driving rod; one end of the opening spring is connected to the side wall of the inner cavity of the mechanism housing; the other end of the opening spring is connected to the circumferential side of the opening spring pull rod; the opening spring pull rod passes through and connects to the circuit breaker driving rod; the end of the opening spring pull rod near the operating shaft of the disconnecting switch is connected to one end of the interlocking pin.

[0012] Preferably, the top of the mechanism housing is provided with a solid-sealing pole; the solid-sealing pole is provided with an isolating knife insulating rod and a circuit breaker insulating rod; the second control mechanism also includes a drive crank arm;

[0013] The circuit breaker drive rod is rotatably connected to the circuit breaker insulating pull rod; the drive crank arm is sleeved on the disconnector operating shaft; the outer edge of the drive crank arm is rotatably connected to the disconnector insulating pull rod.

[0014] Preferably, the outer edge of the drive crank arm is rotatably connected to the isolating knife insulating rod via a first pin; the circuit breaker drive rod is connected to the circuit breaker insulating rod via a rotating connector; the rotating connector includes two second pins and two connecting rods; one second pin radially penetrates the circuit breaker drive rod; the other second pin is rotatably connected to the bottom end of the circuit breaker insulating rod; the two connecting rods are respectively engaged with the two ends of the two second pins.

[0015] Preferably, the top of the solidified pole is provided with a terminal block for connecting external wires.

[0016] Preferably, the front side wall of the mechanism housing is provided with an aviation socket, an energy storage operation handle, an energy storage pointer, and a switch opening / closing operation handle; the spring operating mechanism is provided with an energy storage shaft, an energy storage indicator shaft, and a manual operation shaft;

[0017] The aviation socket is electrically connected to the spring operating mechanism; one end of the energy storage operating handle passes through the mechanism housing and is connected to the energy storage shaft of the spring operating mechanism; one end of the energy storage pointer is connected to the energy storage indicator shaft of the spring operating mechanism; one end of the opening and closing operating handle passes through the front side wall of the mechanism housing and is connected to the manual operating shaft of the spring operating mechanism.

[0018] Preferably, an auxiliary switch is provided in the inner cavity of the mechanism housing, and a stop is provided on the side wall of the circuit breaker drive rod; the auxiliary switch is connected to the stop of the circuit breaker drive rod; the auxiliary switch is electrically connected to the aviation socket.

[0019] Preferably, the front side wall of the mechanism housing is provided with a circuit breaker pointer; one end of the circuit breaker pointer passes through the front side wall of the mechanism housing and is rotatably connected to the side wall of the circuit breaker drive rod.

[0020] Preferably, the second control mechanism is connected to a disconnect switch operating handle; one end of the disconnect switch operating shaft passes through the left side wall of the mechanism housing and is connected to the disconnect switch operating handle.

[0021] Preferably, an arc-shaped limiting plate is provided on the right side wall of the mechanism housing; a limit switch is provided on the arc-shaped limiting plate; a travel crank arm is connected to the end of the disconnect switch operating shaft away from the disconnect switch operating handle; the travel crank arm is slidably connected in the arc-shaped limiting plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are: This integrated pole-mounted circuit breaker with a built-in disconnecting switch has its sealed poles cast from epoxy resin, possessing excellent heat resistance, mechanical strength, resistance to high and low temperature impacts, crack resistance, and electrical insulation properties. The first control mechanism is connected to the second control mechanism via an interlocking component to prevent erroneous operation of the disconnecting switch while it is energized. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0024] Figure 2 This is a bottom view of the structure of this utility model;

[0025] Figure 3 This is a front view schematic diagram of the structure of this utility model;

[0026] Figure 4 for Figure 3 A schematic diagram of the cross-section at point A in the middle, omitting the energy storage operation handle;

[0027] Figure 5 for Figure 3 Schematic diagram of the cross-section at point B in the middle;

[0028] Figure 6 This is a left-side view of the structure of this utility model;

[0029] Figure 7 for Figure 6 A schematic diagram of the cross-section at point C, omitting the operating handle of the isolating switch;

[0030] Figure 8 for Figure 3 Schematic diagram of the cross section at point D;

[0031] Figure 9 for Figure 4 Enlarged view of point E in the middle;

[0032] Figure 10 This is a front view diagram of a chain store.

[0033] Figure 11 An exploded isometric view of the interlocking mechanism;

[0034] Figure 12 An isometric side view for interlocking circuit breakers.

[0035] In the diagram: 1-Solid-sealed pole, 101-Isolating knife insulating rod, 102-Circuit breaker insulating rod, 2-Aviation socket, 3-Mechanism housing, 4-Opening / closing pointer, 5-Energy storage operating handle, 6-Energy storage pointer, 7-Opening / closing operating handle, 8-Isolating switch operating handle, 9-Spring operating mechanism, 901-Closing pressure plate, 902-Opening pressure plate, 10-Circuit breaker drive rod, 11-Auxiliary switch, 12-Opening spring rod, 13-Opening spring, 14-Isolating switch operating shaft, 15-Drive crank arm, 16- Interlocking mechanism, 1601-bracket plate, 1602-movable bracket, 1603-roller, 1604-positioning shaft, 1605-reset spring, 1606-support rod, 1607-second connecting rod, 1608-fourth pin, 1609-locking block, 17-interlocking plate, 18-spring shaft, 19-limit switch, 20-arc-shaped limit plate, 21-travel crank arm, 22-first pin, 23-terminal, 24-second pin, 25-first connecting rod, 26-spring, 27-spring sleeve, 28-third pin. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 This utility model provides a technical solution: a pole-mounted circuit breaker with built-in disconnect switch, including a mechanism housing 3, a first control mechanism, a second control mechanism, and interlocking components.

[0038] The second control mechanism includes a disconnector switch operating shaft 14 and an interlock plate 17, and the interlocking components include an interlocking mechanism 16 and an interlocking pin 18.

[0039] The mechanism housing 3 has an inner cavity, and the first control mechanism, the second control mechanism, and the interlocking components are all disposed in the inner cavity of the mechanism housing 3. The disconnecting switch operating shaft 14 is rotatably connected to the inner cavity of the mechanism housing 3, and the interlocking plate 17 is sleeved on the disconnecting switch operating shaft 14.

[0040] The interlocking mechanism 16 is disposed in the inner cavity of the mechanism housing 3. One end of the interlocking pin 18 is connected to the first control mechanism, and the other end of the interlocking pin 18 is slidably connected to the interlocking mechanism 16. When the interlocking plate 17 is inserted and assembled with the interlocking mechanism 16, the interlocking pin 18 abuts against the side wall of the interlocking plate 17.

[0041] Furthermore, the first control mechanism includes a spring operating mechanism 9, a circuit breaker drive rod 10, a tripping spring pull rod 12, and a tripping spring 13.

[0042] The spring operating mechanism 9 is disposed in the inner cavity of the mechanism housing 3. The driving end of the spring operating mechanism 9 is connected to the circuit breaker driving rod 10. One end of the opening spring 13 is connected to the side wall of the inner cavity of the mechanism housing 3, and the other end of the opening spring 13 is connected to the circumferential side of the opening spring pull rod 12. The opening spring pull rod 12 passes through and connects to the circuit breaker driving rod 10. The end of the opening spring pull rod 12 near the disconnecting switch operating shaft 14 is connected to one end of the interlocking pin 18.

[0043] In this utility model, the spring operating mechanism 9 is an existing structure, preferably a clamp-type structure for the CT17-35 mechanism. The energy storage motor and drive unit, closing cam and input shaft, output shaft, etc., are arranged between the left and right side plates, ensuring reasonable force distribution and good stability. The closing spring and limit switch are arranged on the outside of the side plates for easy maintenance and replacement. The closing and opening electromagnets are easy to disassemble. The energy storage indicator, closing and opening indicator, and counter are arranged on the front of the mechanism for easy observation. The main shaft has rolling bearings at both ends, allowing for flexible rotation and high transmission efficiency. The mechanism is mounted on the base frame of the handcart or fixed cabinet and its circuit breaker using M12 screws through mounting holes on two angle steels fixed between the left and right side plates. The output shaft of the mechanism is at the rear of the mechanism and can be installed upright, inverted, or in any direction, making it simple to operate, novel in structure, reliable in action, and small in size. This structure is an existing structure and will not be described in detail in this article; this model is preferred and is used as an example here.

[0044] Furthermore, the top of the housing 3 of the mechanism box is provided with a solid-sealing pole 1, and the solid-sealing pole 1 is provided with an isolation knife insulating pull rod 101 and a circuit breaker insulating pull rod 102. The second control mechanism also includes a drive crank arm 15.

[0045] The solid-sealed pole 1 is made of epoxy resin and has excellent heat resistance, mechanical strength, high and low temperature impact resistance, crack resistance and electrical insulation properties. The solid-sealed pole 1 is provided with a vacuum interrupter, and the vacuum interrupter is wrapped with silicone and cast into the solid-sealed pole body. The circuit breaker insulating pull rod 102 is located at the lower part of the moving end of the vacuum interrupter.

[0046] Vacuum interrupters, also known as vacuum switch tubes, are core components of medium- and high-voltage power switches. Their main function is to rapidly extinguish the arc and suppress current after the power supply to the medium- and high-voltage circuit is cut off, utilizing the excellent insulation of the vacuum inside the tube to prevent accidents and incidents. They are primarily used in power transmission and distribution control systems. They feature energy saving, material saving, fire resistance, explosion protection, small size, long service life, low maintenance costs, reliable operation, and no pollution. Vacuum interrupters are further divided into circuit breaker interrupters and load switch interrupters. Circuit breaker interrupters are mainly used in substations and power grid facilities in the power sector, while load switch interrupters are mainly used by end users of the power grid.

[0047] The circuit breaker drive rod 10 is rotatably connected to the circuit breaker insulating pull rod 102, the drive crank arm 15 is sleeved on the disconnector operating shaft 14, and the outer edge of the drive crank arm 15 is rotatably connected to the disconnector insulating pull rod 101.

[0048] Furthermore, the outer edge of the drive crank arm 15 is rotatably connected to the isolating knife insulating pull rod 101 via a first pin 22, and the circuit breaker drive rod 10 is connected to the circuit breaker insulating pull rod 102 via a rotating connector. The rotating connector includes two second pins 24 and two first connecting rods 25. One second pin 24 radially penetrates the circuit breaker drive rod 10, and the other second pin 24 is rotatably connected to the bottom end of the circuit breaker insulating pull rod 102. The two first connecting rods 25 are respectively fastened to the two ends of the two second pins 24.

[0049] Furthermore, the top of the solidified pole 1 is provided with a terminal block 23 for connecting external wires. The terminal block 23 is connected to an external control device via an external wire.

[0050] In this utility model, the three-phase solid-sealed poles 1 are installed side by side on the mechanism housing 3. The terminal block 23 is fixed on the top of the solid-sealed pole 1. The overhead conductor is electrically connected to the circuit breaker through the terminal block 23. The spring operating mechanism 9 is placed inside the mechanism housing 3. The spring operating mechanism 9 is connected to the circuit breaker drive rod 10 through the second pin 24. The circuit breaker drive rod 10 is connected to the circuit breaker insulating pull rod 102 through the second pin 24 and the first connecting rod 25. When the circuit breaker closes, the spring operating mechanism 9 drives the circuit breaker drive rod 10, which in turn drives the circuit breaker insulating pull rod 102 via the first connecting rod 25. The insulating pull rod 102 then drives the vacuum interrupter to complete the closing operation. One end of the opening spring 13 is fixed to the inner wall of the mechanism housing 3, and the other end is connected to the circuit breaker drive rod 10 via the opening spring pull rod 12. The opening spring 13 stores energy while the circuit breaker closes. When the circuit breaker opens, the opening spring 13 drives the circuit breaker drive rod 10 via the opening spring pull rod 12, which in turn drives the circuit breaker insulating pull rod 102 via the first connecting rod 25. The insulating pull rod 102 then drives the vacuum interrupter to complete the opening operation.

[0051] Furthermore, the front side wall of the mechanism housing 3 is provided with an aviation socket 2, an energy storage operation handle 5, an energy storage pointer 6, and a switch opening / closing operation handle 7. The spring operating mechanism 9 is provided with an energy storage shaft, an energy storage indicator shaft, and a manual operation shaft.

[0052] The aviation socket 2 is electrically connected to the spring operating mechanism 9. One end of the energy storage operating handle 5 passes through the mechanism housing 3 and is connected to the energy storage shaft of the spring operating mechanism 9. One end of the energy storage pointer 6 is connected to the energy storage indicator shaft of the spring operating mechanism 9. One end of the opening and closing operating handle 7 passes through the front side wall of the mechanism housing 3 and is connected to the manual operating shaft of the spring operating mechanism 9.

[0053] The aviation socket 2 is installed on the outer side of the housing 3 of the mechanism box. The spring operating mechanism 9 is equipped with a circuit breaker coil and a limit switch. The circuit breaker coil and the limit switch in the spring operating mechanism 9 are connected to the aviation socket 2 through wires. The external control power and control signals are transmitted to the spring operating mechanism 9 through the aviation socket 2. At the same time, the position and energy storage signals of the spring operating mechanism 9 are transmitted to the external control equipment through the aviation socket 2.

[0054] Furthermore, an auxiliary switch 11 is provided in the inner cavity of the mechanism housing 3, and a stop is provided on the side wall of the circuit breaker drive rod 10; the auxiliary switch 11 is connected to the stop of the circuit breaker drive rod 10; the auxiliary switch 11 is electrically connected to the aviation socket 2.

[0055] Furthermore, the front side wall of the mechanism housing 3 is provided with a circuit breaker pointer 4, one end of which passes through the front side wall of the mechanism housing 3 and is rotatably connected to the side wall of the circuit breaker drive rod 10.

[0056] The opening and closing operation handle 7 passes through the mechanism housing 3 and is connected to the manual operation shaft of the spring operating mechanism 9. The circuit breaker is manually operated by opening and closing the circuit breaker via the opening and closing operation handle 7. The opening and closing pointer 4 passes through the mechanism housing 3 and is connected to the circuit breaker drive rod 10. When the circuit breaker drive rod 10 is in the opening or closing position, it drives the opening and closing pointer 4 to rotate, indicating the opening and closing position of the circuit breaker. The energy storage operation handle 5 passes through the mechanism housing 3 and is connected to the energy storage shaft of the spring operating mechanism 9. The operation of the energy storage operation handle... 5. The spring operating mechanism 9 stores energy. The energy storage pointer 6 is connected to the energy storage indicator shaft of the spring operating mechanism 9. When the energy storage is completed, the energy storage pointer 6 indicates the energy storage position. The mechanism housing 3 is equipped with the auxiliary switch 11. The stop block on the circuit breaker drive rod 10 is connected to the auxiliary switch 11. When the circuit breaker is opened or closed, the circuit breaker drive rod 10 drives the auxiliary switch 11 to change its open or closed position. The auxiliary switch 11 is connected to the aviation socket 2 through a wire. The electrical signal of the circuit breaker's open or closed position is transmitted to the relevant control equipment through the aviation socket 2.

[0057] Furthermore, the second control mechanism is connected to a disconnect switch operating handle 8, and one end of the disconnect switch operating shaft 14 passes through the left side wall of the mechanism housing 3 and is connected to the disconnect switch operating handle 8.

[0058] Furthermore, an arc-shaped limiting plate 20 is provided on the right side wall of the mechanism housing 3, and a limit switch 19 is provided on the arc-shaped limiting plate 20. The end of the disconnect switch operating shaft 14 away from the disconnect switch operating handle 8 is connected to a travel crank arm 21, and the travel crank arm 21 is slidably connected in the arc-shaped limiting plate 20.

[0059] The disconnector switch operating shaft 14 is mounted on the mechanism housing 3. The three-phase drive crank arm 15 of the disconnector switch is sleeved on the disconnector switch operating shaft 14. The drive crank arm 15 is connected to the isolating knife insulating pull rod 101 through the pin 22. The disconnector switch operating handle 8 is mounted on one side of the disconnector switch operating shaft 14. By operating the disconnector switch operating handle 8, the disconnector switch operating shaft 14 is driven, so that the drive crank arm 15 carries the isolating knife insulating pull rod 101 to drive the isolating knife to complete the opening and closing operation.

[0060] The limit switch 19 is fixed on the arc-shaped limiting plate 20, which is mounted on the housing 3 of the mechanism box. The travel crank arm 21 is sleeved on the disconnector switch operating shaft 14. When the disconnector switch is operated, the travel crank arm 21, limited by the arc-shaped limiting plate 20, ensures that the rotation angle of the disconnector switch operating shaft 14 is within the required range, thereby ensuring the accuracy of the disconnector switch's opening and closing position. When the travel crank arm 21 rotates with the disconnector switch operating shaft 14, it touches the limit switch 19, causing the limit switch 19 to close at the open and open at the closed. The limit switch 19 is connected to the aviation socket 2 via a wire, and the electrical signal of the disconnector switch's opening and closing position is transmitted to the relevant control equipment through the aviation socket 2.

[0061] The interlocking mechanism 16 is mounted on the housing 3 of the mechanism box, the interlocking pin 18 is mounted on the trip spring rod 12, and the interlocking plate 17 is mounted on the disconnecting switch operating shaft 14. When the circuit breaker is in the closed position, the interlocking pin 18 is inserted into the interlocking mechanism 16 under the drive of the trip spring rod 12. The interlocking plate 17 is blocked by the interlocking pin 18, so that the disconnecting switch operating shaft 14 cannot rotate. Thus, the circuit breaker cannot operate the disconnecting switch when it is in the closed position, so that there is a reliable mechanical interlock between the circuit breaker and the disconnecting switch.

[0062] Furthermore, the interlocking mechanism 16 includes a support plate 1601, a movable support 1602, a roller 1603, a positioning shaft 1604, a return spring 1605, a support rod 1606, a second connecting rod 1607, a fourth pin 1608, and a locking block 1609. The spring operating mechanism 9 includes a closing pressure plate 901 and a opening pressure plate 902.

[0063] The support plate 1601 is bolted to the spring operating mechanism 9. The outer side of the movable bracket 1602 is connected to the inner side of the support plate 1601 via the support rod 1606. The return spring 1605 is sleeved on the support rod 1606. One end of the return spring 1605 abuts against the movable bracket 1602, and the other end of the return spring 1605 abuts against the inner side of the support plate 1601. A roller opening is provided on one side of the support plate 1601. The side wall of the movable bracket 1602 is provided with a roller 1603 for abutting against the interlocking plate 17. The roller 1603 passes through the roller opening of the support plate 1601. One end of the movable bracket 1602 is provided with two positioning shafts 1604 for blocking the closing pressure plate 901 and the opening pressure plate 902.

[0064] The top surface of the bracket plate 1601 is connected to the locking block 1609 via the fourth pin 1608. The end of the locking block 1609 is rotatably connected to one end of the second connecting rod 1607, and the other end of the second connecting rod 1607 is connected to the opening spring pull rod 12.

[0065] Working principle:

[0066] The terminal block 23 is connected to an external control device via an external wire.

[0067] When the circuit breaker is closed, the spring operating mechanism 9 drives the circuit breaker drive rod 10 to swing. The circuit breaker drive rod 10 drives the circuit breaker insulating pull rod 102 through the first connecting rod 25. The circuit breaker insulating pull rod 102 drives the vacuum interrupter chamber in the solid-sealed pole 1 to complete the closing operation.

[0068] At the same time, the interlocking pin 18 is inserted into the interlocking mechanism 16 under the drive of the opening spring pull rod 12. The interlocking plate 17 is blocked by the interlocking pin 18, so that the disconnecting switch operating shaft 14 cannot rotate. Thus, the circuit breaker cannot operate the disconnecting switch when it is in the closed position, so that there is a reliable mechanical interlock between the circuit breaker and the disconnecting switch.

[0069] When the circuit breaker is tripped, the tripping spring 13 drives the circuit breaker drive rod 10 through the tripping spring pull rod 12. The circuit breaker drive rod 10 drives the circuit breaker insulating pull rod 102 through the first connecting rod 25. The circuit breaker insulating pull rod 102 drives the vacuum interrupter chamber in the solid-sealed pole 1 to complete the tripping operation.

[0070] The external control power supply and control signals are transmitted to the spring operating mechanism 9 through the aviation socket 2, and the position and energy storage signals of the spring operating mechanism 9 are transmitted to the external control device through the aviation socket 2.

[0071] The circuit breaker opening and closing operation handle 7 passes through the mechanism housing 3 and is connected to the manual operation shaft of the spring operating mechanism 9. The circuit breaker is manually operated by opening and closing the circuit breaker through the circuit breaker opening and closing operation handle 7. When the circuit breaker drive rod 10 is in the opening and closing position, it drives the circuit breaker opening and closing pointer 4 to rotate. The circuit breaker opening and closing pointer 4 indicates the opening and closing position of the circuit breaker. The energy storage operation handle 5 is operated to store energy in the spring operating mechanism 9. The energy storage pointer 6 is connected to the energy storage indicator shaft of the spring operating mechanism 9. When the energy storage is completed, the energy storage pointer 6 indicates the energy storage position. When the circuit breaker is operated, the circuit breaker drive rod 10 drives the auxiliary switch 11 to change its opening and closing position. The auxiliary switch 11 is connected to the aviation socket 2 through a wire. The electrical signal of the circuit breaker opening and closing position is transmitted to the relevant control equipment through the aviation socket 2.

[0072] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deep integration of an embedded disconnector with a pole-mounted circuit breaker, characterized in that, The mechanism box shell (3), the first control mechanism, the second control mechanism and the interlocking mechanism (16) are included. The second control mechanism includes a disconnecting switch operating shaft (14) and an interlocking plate (17). The mechanism box shell (3) is provided with an inner cavity; the first control mechanism, the second control mechanism and the interlocking piece are arranged in the inner cavity of the mechanism box shell (3); the disconnecting switch operating shaft (14) is rotatably connected to the inner cavity of the mechanism box shell (3); and the interlocking plate (17) is sleeved on the disconnecting switch operating shaft (14). The interlocking mechanism (16) is arranged in the inner cavity of the mechanism box shell (3); one end of a locking pin (18) is connected to the first control mechanism; the other end of the locking pin (18) is slidably connected to the interlocking mechanism (16); and when the interlocking plate (17) is inserted and assembled with the interlocking mechanism (16), the locking pin (18) abuts against the side wall of the interlocking plate (17).

2. A deep integration of an isolator in a pole-mounted circuit breaker according to claim 1, characterized in that, The first control mechanism includes a spring operating mechanism (9), a circuit breaker driving rod (10), a spring opening rod (12) and a spring (13). The spring operating mechanism (9) is arranged in the inner cavity of the mechanism box shell (3); the driving end of the spring operating mechanism (9) is connected to the circuit breaker driving rod (10); one end of the spring (13) is connected to the side wall of the inner cavity of the mechanism box shell (3); the other end of the spring (13) is connected to the circumferential side of the spring opening rod (12); the spring opening rod (12) penetrates the circuit breaker driving rod (10); and one end of the spring opening rod (12) close to the disconnecting switch operating shaft (14) is connected to one end of the locking pin (18).

3. A deep draw integrated disconnector circuit breaker according to claim 2, wherein, The mechanism box shell (3) is provided with a sealed pole (1) at the top; the sealed pole (1) is provided with an isolating knife insulation pull rod (101) and a circuit breaker insulation pull rod (102) therein; and the second control mechanism further includes a driving crank arm (15). The circuit breaker driving rod (10) is rotatably connected to the circuit breaker insulation pull rod (102); the driving crank arm (15) is sleeved on the disconnecting switch operating shaft (14); the outer edge of the driving crank arm (15) is rotatably connected to the isolating knife insulation pull rod (101); and the sealed pole (1) is provided with a terminal (23) for external wires at the top.

4. A deep draw integrated disconnector circuit breaker according to claim 3, wherein, The outer edge of the driving crank arm (15) is rotatably connected to the isolating knife insulation pull rod (101) through a first pin shaft (22); the circuit breaker driving rod (10) is connected to the circuit breaker insulation pull rod (102) through a rotating connecting piece; the rotating connecting piece includes two second pin shafts (24) and two first connecting rods (25); one of the second pin shafts (24) penetrates the circuit breaker driving rod (10) radially; the other of the second pin shafts (24) is rotatably connected to the bottom end of the circuit breaker insulation pull rod (102); and the two first connecting rods (25) are respectively buckled on the two ends of the two second pin shafts (24).

5. An internally isolated deep fusion pole-mounted circuit breaker according to claim 3, wherein, The front side wall of the mechanism box shell (3) is provided with an aviation socket (2), an energy storage operating handle (5), an energy storage pointer (6), and an opening and closing operating handle (7); the spring operating mechanism (9) is provided with an energy storage shaft, an energy storage indicating shaft, and a manual operating shaft; The aviation socket (2) is electrically connected with the spring operating mechanism (9); one end of the energy storage operating handle (5) penetrates through the mechanism box shell (3) and is connected with the energy storage shaft of the spring operating mechanism (9); one end of the energy storage pointer (6) is connected with the energy storage indicating shaft of the spring operating mechanism (9); one end of the opening and closing operating handle (7) penetrates through the front side wall of the mechanism box shell (3) and is connected with the manual operating shaft of the spring operating mechanism (9).

6. A deep draw integrated disconnector circuit breaker according to claim 5, wherein, An auxiliary switch (11) is arranged in the inner cavity of the mechanism box shell (3), and a stop block is arranged on the side wall of the circuit breaker driving rod (10); the auxiliary switch (11) is connected with the stop block of the circuit breaker driving rod (10); the auxiliary switch (11) is electrically connected with the aviation socket (2).

7. An internally isolated deep fusion pole-mounted circuit breaker according to claim 3, wherein, The front side wall of the mechanism box shell (3) is provided with an opening and closing pointer (4); one end of the opening and closing pointer (4) penetrates through the front side wall of the mechanism box shell (3) and is rotatably connected with the side wall of the circuit breaker driving rod (10).

8. An integrated isolator deep-drawn pole-mounted circuit breaker according to claim 1, characterized in that, The second control mechanism is connected with an isolating switch operating handle (8); one end of the isolating switch operating shaft (14) penetrates through the left side wall of the mechanism box shell (3) and is connected with the isolating switch operating handle (8).

9. A deep-drawn pole-mounted circuit breaker with a built-in disconnector according to claim 8, characterized in that An arc-shaped limiting plate (20) is arranged on the right side wall of the mechanism box shell (3); a travel switch (19) is arranged on the arc-shaped limiting plate (20); one end of the isolating switch operating shaft (14) away from the isolating switch operating handle (8) is connected with a travel crank arm (21); the travel crank arm (21) is slidably connected in the arc-shaped limiting plate (20).

10. A deep draw fused position disconnect switch circuit breaker according to claim 2, wherein, The interlocking mechanism (16) comprises a support plate (1601), a movable support (1602), a roller shaft (1603), a positioning shaft (1604), a reset spring (1605), a support rod (1606), a second connecting rod (1607), a fourth pin shaft (1608), and a lock block (1609); the spring operating mechanism (9) comprises a closing pressure plate (901) and an opening pressure plate (902). The support plate (1601) is connected with the spring operating mechanism (9) through a bolt; the outer side of the movable support (1602) is connected with the inner side of the support plate (1601) through the support rod (1606); the support rod (1606) is sleeved with the reset spring (1605); one end of the reset spring (1605) is abutted against the movable support (1602); the other end of the reset spring (1605) is abutted against the inner side of the support plate (1601); one side of the support plate (1601) is provided with a roller opening; the side wall of the movable support (1602) is provided with the roller (1603) for abutting against the interlocking plate (17); the roller (1603) penetrates through the roller opening of the support plate (1601); one end of the movable support (1602) is provided with two positioning shafts (1604) for blocking the closing pressure plate (901) and the opening pressure plate (902); The top surface of the support plate (1601) is connected with the lock block (1609) through the fourth pin shaft (1608); the end of the lock block (1609) is rotationally connected with one end of the second connecting rod (1607); the other end of the second connecting rod (1607) is connected with the opening spring pull rod (12).

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