Primary and secondary fusion complete column-mounted circuit breaker

Abstract

The invention relates to a primary and secondary fusion complete column-mounted circuit breaker, which comprises a circuit breaker body, a column mounting frame, a voltage transformer, an electronic sensor, a drop-out fuse and a controller, and is characterized in that the circuit breaker body is provided with an operation base and a plurality of solid-sealed polar poles arranged on the operation base; a vacuum arc-extinguishing chamber is arranged in the upper end of a vertical section of the solid-sealed polar pole, a connecting wire extending horizontally is arranged in a transverse section of the solid-sealed polar pole, opening and closing of the vacuum arc-extinguishing chamber are driven by an operation base, and the solid-sealed polar pole further comprises a limiting assembly arranged in the solid-sealed polar pole and a conductive linkage assembly arranged in the limiting assembly. The conductive wire connecting assembly is arranged in the limiting assembly, and the accelerating assembly is arranged in the limiting assembly and located below the mounting sleeve, so that the opening speed is accelerated. The beneficial effects of the invention lie in that the linkage assembly connected with the movable conducting rod and the driving rod realizes switching-on power-on and switching-off power-off, and can also cooperate with the acceleration assembly so as to accelerate the switching-off speed.

Description

Technical Field

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

[0002] The primary and secondary integrated pole-mounted circuit breaker is a pole-mounted circuit breaker device that deeply integrates the primary high-voltage part and the secondary low-voltage control, measurement, protection and other parts.

[0003] Publication (Announcement) No.: CN118173416B discloses a primary and secondary fusion column mounted circuit breaker, comprising:

[0004] An operating base, wherein an operating mechanism is provided on the operating base;

[0005] A sealed pole, which is provided on an operating base and has a cavity therein. A lower outlet wire is provided horizontally on one side of the sealed pole, and one end of the lower outlet wire extends into the cavity.

[0006] A vacuum switch tube, which is fixed in a solid-sealed pole and is provided with a moving contact and a static contact. The moving contact moves up and down to open and close with the static contact. The lower end of the moving contact extends into the cavity, and the upper end of the static contact extends out of the solid-sealed pole.

[0007] The opening and closing mechanism includes a conductive part for driving the moving contact to move and connected to the lower outgoing line opening and closing switch, a transmission rod for driving the conductive part to move, and a guide mechanism for limiting the moving path of the conductive part. The transmission rod is connected to the operating mechanism, and the opening and closing mechanism is installed in the cavity.

[0008] The opening process of this type of primary and secondary fusion column-mounted circuit breaker mainly relies on the spring energy storage mechanism to provide power. To a certain extent, it can ensure that the circuit breaker has a certain opening speed to meet basic circuit protection requirements, but its inherent mechanical structure characteristics determine the relative fixedness of the opening speed. Summary of the Invention

[0009] The present invention aims to solve the above-mentioned shortcomings of the prior art and provides a primary and secondary integrated pole-mounted circuit breaker to solve the above-mentioned problems.

[0010] The present invention solves the technical problem by adopting a technical solution: This integrated primary and secondary pole-mounted circuit breaker includes a circuit breaker body, a pole mounting frame, a voltage transformer, an electronic sensor, a drop-out fuse, and a controller. The circuit breaker body has an operating base and a plurality of sealed poles arranged on the operating base. The upper end of the vertical section of the sealed pole is provided with a vacuum interrupter, and the horizontal section is provided with a horizontally extending connecting wire. The opening and closing of the vacuum interrupter is driven by the operating base.

[0011] A limiting component is provided in the sealed pole, which is used to limit the vacuum interrupter to the upper end of the vertical section of the sealed pole and can be connected to other components as a connecting component;

[0012] A conductive linkage assembly disposed within the confining assembly, one end of the linkage assembly being connected to the moving conductive rod of the vacuum interrupter and the other end being connected to the driving rod of the operating base, so that when opening and closing the circuit breaker, the driving rod of the operating base is driven to change the preset configuration of the linkage assembly and drive the moving conductive rod of the vacuum interrupter and its static conductive rod to open and close; and

[0013] A conductive wire connection assembly disposed within the confining assembly, one end of the wire connection assembly being connected to the connecting wire and the other end being in abutment with the conductive end of the linkage assembly, so that electrical conduction is achieved through abutment when the switch is closed, and the conductive end is released from abutment with the wire connection assembly after the linkage assembly is driven in the opening direction by the operating base when the switch is opened; and

[0014] An acceleration component is arranged in the limiting component and located below the mounting sleeve. The lower end of the acceleration component is also connected to the linkage component, and the upper end is located below the conductive end of the linkage component. When the gate is opened, the linkage component undergoes a preset shape change as driven by the operating base and abuts against the lower end of the linkage component. After abutment, a downward force is generated by pressing down the acceleration component to be transmitted to the linkage component to accelerate the gate opening speed.

[0015] Further improvement is made, the limiting component includes a sleeve, and a plurality of locking rods arranged on the inner circumference of the inner cavity of the sleeve and distributed in a circular array. The sleeve enters the sealed pole through the guide path provided by the inner cavity of the sealed pole, and abuts against the vacuum arc chamber after entering. A locking socket is formed on the inner circumference of the inner cavity of the sealed pole. The locking rod extends to the outside of the sleeve and is plugged into the locking socket to keep the sleeve in the sealed pole through plug-in cooperation. The inner cavity of the sleeve has a reinforcing rib structure, and the linkage component, the wire connection component, and the acceleration component are connected through the reinforcing rib structure.

[0016] For further improvement, a first spring is provided on the portion of the locking rod located in the inner cavity of the sleeve, one end of the first spring is welded to the cap portion of the locking rod, and the other end is welded to the inner circumference of the inner cavity of the sleeve.

[0017] Further improvement, the linkage assembly includes an upper connector, a lower connector, a swing arm, two upper connecting arms, and two lower connecting arms. The upper connector is connected to the dynamic conductive rod of the vacuum arc chamber, and the lower connector is hinged to the drive rod of the operating base. The swing arm has one axial connection and two hinged positions, and is respectively axially connected to the reinforcing rib structure arranged in the inner cavity of the sleeve, hinged to the lower connecting arm, and hinged to the upper connecting arm, and allows the linkage assembly to swing to one side through the axial connection to quickly release the contact with the wire connection assembly when driven by the operating base. The end of the upper connecting arm that is not hinged to the swing arm is hinged to the upper connector, and the end of the lower connecting arm that is not hinged to the swing arm is hinged to the lower connector.

[0018] For further improvement, a conductive block is provided at the right-angle end of the swing arm, and the conductive block abuts against the wire connection assembly when the switch is closed.

[0019] To be further improved, the wire connection assembly includes a mounting seat, a conductive sheet, and a wiring tube. The mounting seat is connected to the reinforcing rib structure of the inner cavity of the sleeve. The conductive sheet is set in the mounting seat by bolts and abuts against the conductive block when the switch is closed. The wiring tube is fixed in the mounting seat, and one end thereof abuts against the conductive sheet, and the other end is used to connect the connecting wire.

[0020] Further improvement, the acceleration component includes a rod sleeve and a moving rod. The rod sleeve is connected to the reinforcing rib structure set in the inner cavity of the sleeve. The moving rod moves in the rod sleeve, and its upper end is located below the conductive block and the lower end is connected to the lower connector.

[0021] For further improvement, a connecting ear is provided on the side of the lower connecting head close to the acceleration component, and a connecting ring which is also connected to the moving rod is provided on the connecting ear. The lower end of the moving rod is provided with an abutment cap which can adjust the telescopic length by rotation, and the abutment cap abuts against the outer peripheral surface of the connecting ear.

[0022] For further improvement, the column mounting frame includes a support rod and an oblique rod hinged to the support rod, and a clamp is provided at one end of the support rod and the oblique rod, and an axle seat for setting a connecting shaft is provided on the sealing part of the clamp, and an assembly channel extending along its width direction is provided on the axle seat, and the connecting shaft is provided in the assembly channel, and after being placed in the assembly channel, the connecting shaft is located below the screw portion of the surrounding portion of the clamp, and the outer peripheral surfaces of both ends of the connecting shaft are provided with anti-rotation surfaces that abut against the screw portion of the surrounding portion of the clamp.

[0023] Further improvement, the assembly channel includes a first introduction section, a second introduction section, and an end section formed on the shaft seat, and the first introduction section and the second introduction section are used to guide the connecting shaft to reach the end section.

[0024] The beneficial effects of the present invention are:

[0025] 1. The present invention provides a linkage assembly between the movable conductive rod of the vacuum interrupter and the drive rod of the operating base. The linkage assembly not only serves as a connection, but also serves as a conductive component for use with the wire connection assembly. That is, when closing the circuit breaker, the linkage assembly and the wire connection assembly abut against each other to achieve power on. When opening the circuit breaker, the two release the abutment to achieve power off. In addition, the conductive block also serves as a matching component for use with the acceleration assembly. That is, after the acceleration assembly is connected to the lower connector, the downward pressure exerted on the acceleration assembly is synchronously transmitted to the drive rod of the operating base, thereby accelerating the opening speed.

[0026] 2. The linkage assembly, wire connection assembly, and acceleration assembly of the present invention are all arranged on the limiting assembly, which makes these components compact. The limiting assembly can also limit the vacuum interrupter, that is, stably maintain it at the upper end of the inner cavity of the vertical section of the sealed pole. At the same time, the limiting assembly also increases the structural strength of the sealed pole.

[0027] 3. The pole mounting bracket of the present invention is set on the electric pole through a clamp. The clamp is provided with a connecting shaft that is axially connected to the support rod or the inclined rod to adjust the use position. However, in order to ensure that the connecting shaft itself does not rotate during adjustment, anti-rotation surfaces are provided at both ends of the connecting shaft, and the anti-rotation surfaces abut against the screw of the surrounding part of the clamp to achieve the purpose of anti-rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the present invention being used on a power pole;

[0029] Figure 2 It is a structural schematic diagram of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the entire assembly consisting of the limiting assembly, linkage assembly, wire connection assembly, and acceleration assembly of the present invention;

[0031] Figure 4 This is a partial cross-sectional structural diagram of the present invention wherein the limiting assembly, linkage assembly, wire connection assembly, and acceleration assembly are integrally formed and disposed within the sealed pole, illustrating the state in which the locking hole and the locking rod are combined;

[0032] Figure 5 This is a schematic diagram of the overall cross-section structure of the limiting component, linkage component, wire connection component and acceleration component of the present invention;

[0033] Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of part A;

[0034] Figure 7 For the present invention Figure 5 A partial enlarged schematic diagram of part B;

[0035] Figure 8 A schematic diagram of a partial usage state of the connection between the pole mounting bracket of the present invention and the electric pole;

[0036] Figure 9 This is a partial schematic diagram of the use state of the side surface of the connection between the pole mounting bracket of the present invention and the power pole, used to show the assembly channel. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings:

[0038] Referring to the accompanying drawings: This primary and secondary integrated pole-mounted circuit breaker includes a circuit breaker body 1, a pole mounting frame 2, a voltage transformer 3, an electronic sensor 4, a drop-out fuse 5, and a controller 6. The circuit breaker body 1 has an operating base 11 and a plurality of sealed poles 12 arranged on the operating base 11. The upper end of the vertical section of the sealed pole 12 is internally provided with a vacuum interrupter 7, and the interior of the horizontal section is provided with a horizontally extending connecting wire 8. The opening and closing of the vacuum interrupter 7 is driven by the operating base 11. The circuit breaker body 1, the pole mounting frame 2, the voltage transformer 3, the electronic sensor 4, the drop-out fuse 5, and the controller 6 are a one-two assembly. The main components of the integrated pole-mounted circuit breaker are as follows: the circuit breaker body 1 is the core actuator, which is used to close and disconnect the load current, overload current, and short-circuit current in the power system. Its operating base 11 is provided with a spring operating structure, and a driving rod of the spring operating structure extends into the sealed pole 12. A vacuum interrupter 7 is provided in the sealed pole 12. That is, when the circuit breaker is opened, the driving rod moves downward and the moving conductive rod also moves downward synchronously, so that the static contact and the moving contact in the vacuum interrupter 7 are disconnected. Closing occurs after the circuit breaker is opened, that is, the driving rod moves upward and the moving conductive rod also moves upward synchronously, so that the static contact and the moving contact in the vacuum interrupter 7 are closed.

[0039] A limiting component 9 is provided in the sealed pole 12. The limiting component 9 is used to limit the vacuum interrupter 7 to the upper end position of the vertical section of the sealed pole 12 and can be used as a connecting component to connect with other components. On the one hand, the limiting component 9 is used as a connecting component, that is, it uses itself to increase the wall thickness of the sealed pole 12, which can appropriately increase the structural strength of the sealed pole 12. In addition, it can be connected with other components. The main connected components are the linkage component 10, the wire connection component 20, and the acceleration component 30. In this way, these components can be assembled first and then placed in the sealed pole 12, avoiding assembly in the sealed pole 12, thereby improving the convenience of assembly; on the other hand, the limiting component 9 is used as a limiting component, that is, it itself is set to produce a retaining structure between the sealed pole 12 to prevent it from losing its position. The vacuum interrupter 7 does not need to be provided with a retaining structure, and the problem of sealing hazards in the vacuum interrupter 7 caused by the provision of a retaining structure can also be avoided, thereby achieving the goal of limiting the vacuum interrupter 7 to the upper end position of the vertical section of the sealed pole 12.

[0040] A conductive linkage component 10 is arranged in the limiting component 9, and one end of the linkage component 10 is connected to the moving conductive rod of the vacuum interrupter 7, and the other end is connected to the driving rod of the operating base 11, so that when opening and closing, the driving rod of the operating base 11 drives the preset shape of the linkage component 10 to change and drives the moving conductive rod of the vacuum interrupter 7 and its static conductive rod to open and close. The linkage component 10 is used to connect with the moving conductive rod of the vacuum interrupter 7 and the driving rod entering the sealed pole 12 in the spring operating structure, that is, to use its own length to make up for the size difference between the two connected. The preset shape of the configuration of the linkage component 10 will change according to the position change of the moving conductive rod of the vacuum interrupter 7 and the driving rod of the operating base 11. The change is to enable the conductive end of the linkage component 10 to be quickly disconnected from the wire connection component 20 when opening.

[0041] A conductive wire connecting component 20 is arranged in the limiting component 9, and one end of the wire connecting component 20 is connected to the connecting wire 8, and the other end is abutted with the conductive end of the linkage component 10, so as to realize electrical conduction through abutment when closing the circuit breaker, and when opening the circuit breaker, the linkage component 10 is driven in the opening direction by the operating base 11 to release the conductive end from abutting with the wire connecting component 20. The wire connecting component 20 is used to connect the connecting wire 8, and the connecting wire 8 is used to introduce current, and then the current is conducted into the vacuum interrupter 7 when the conductive end of the linkage component 10 abuts against it, and the abutment between the two is released when opening the circuit breaker to realize power outage.

[0042] The acceleration component 30 is arranged in the limiting component 9, and the lower end of the acceleration component 30 is also connected to the linkage component 10, and the upper end is located below the conductive end of the linkage component 10, so that when the gate is opened, the linkage component 10 changes into a preset shape as the operating base 11 is driven to abut against the lower end of the linkage component 10, and allows a downward force to be generated by pressing the acceleration component 30 after abutment to be transmitted to the linkage component 10 to speed up the gate opening speed. The acceleration component 30 is set to increase the gate opening speed (i.e., the power-off speed). Rapid power off can reduce the impact of current on the system and prevent the system from being damaged due to overload or short circuit, thereby protecting equipment and lines, ensuring It not only ensures the stable operation of the system, but also improves safety, reduces the risk of fire and explosion caused by electric arc, and can also achieve energy-saving effects, especially in the case of frequent operation and rapid disconnection, which can significantly reduce energy waste. The power of the acceleration component 30 comes from the linkage component 10, that is, the conductive end of the linkage component 10 abuts against the acceleration component 30 when it moves in the direction of releasing the abutment with the wire connection component 20. After the abutment, the conductive end also continues to exert downward pressure on the acceleration component 30 as the linkage component 10 continues to move. The acceleration component 30 will also move accordingly after being pressurized and assist the linkage component 10 in moving, thereby accelerating the opening speed.

[0043] The limiting component 9 includes a sleeve 91 and a plurality of locking rods 92 arranged on the inner circumference of the inner cavity of the sleeve 91 and distributed in a circular array. The sleeve 91 enters the sealed pole 12 through the guide path provided by the inner cavity of the sealed pole 12, and abuts against the vacuum interrupter 7 after entering. A locking socket 121 is formed on the inner circumference of the inner cavity of the sealed pole 12. The locking rod 92 extends to the outside of the sleeve 91 and is plugged into the locking socket 121 to keep the sleeve 91 in the sealed pole 12 through plug-in cooperation. The inner cavity of the sleeve 91 has a reinforcing rib structure, and the linkage component 10, the wire connection component 20, and the acceleration component 30 are connected through the reinforcing rib structure. The configuration of the sleeve 91 can meet the inner cavity configuration of the sealed pole 12, and the resulting wall thickness can also enable part of the sleeve 91 to be clamped on the outer circumference of the guide sleeve of the vacuum interrupter 7 and the inner circumference of the sealed pole 12. The gap formed between them (the sleeve 91 has an extension section, and the extension section has no reinforcing rib structure), so that the upper end face of the sleeve 91 can fully fit with the lower end face of the outer shell of the vacuum arc chamber 7, so that the limiting effect provided to the vacuum arc chamber 7 is good, and the sleeve 91 itself is fixed on the sealed pole 12 by a locking rod 92, and the sealed pole 12 is provided with a locking hole 121 obtained synchronously during injection molding. When the sleeve 91 reaches the installation position, the locking rod 92 enters the corresponding locking hole 121 to achieve locking combination, so that the sleeve 91 and the sealed pole 12 are assembled, and there are four locking positions, so as to increase the assembly stability. At the same time, the inner cavity of the sleeve 91 increases its own structural strength by setting a reinforcing rib structure, and the reinforcing rib structure is also used to connect the linkage component 10, the wire connection component 20, and the acceleration component 30, so that these components are compactly matched.

[0044] The locking rod 92 is provided with a first spring 93 on the portion of the inner cavity of the sleeve 91. One end of the first spring 93 is welded to the cap of the locking rod 92, and the other end is welded to the inner circumference of the inner cavity of the sleeve 91. The first spring 93 makes the normal state of the locking rod 92 always exposed to the outside of the sleeve 91. In this way, the locking rod 92 can always remain in the locking hole 121 after entering the locking hole 121, thereby ensuring the assembly stability of the sleeve 91 and the sealed pole 12. Moreover, under the action of the first spring 93, the locking rod After the sleeve 91 enters the sealed pole 12, the locking rod 92 will retract into the sleeve 91 due to the inner cavity size of the sealed pole 12. At this time, the first spring 93 also undergoes adaptive tensile deformation, that is, it also generates elastic force. In this way, after the sleeve 91 reaches the assembly position, the use position of the locking rod 92 is adjusted by rotation. When it is adjusted to the locking hole 121, the locking rod 92 extends out of the sleeve 91 and enters the locking hole 121 under the action of the first spring 93 (the first spring 93 resets). There is no need for manual alignment and locking, which is convenient and quick.

[0045] The linkage assembly 10 includes an upper connector 101, a lower connector 102, a swing arm 103, two upper connecting arms 104, and two lower connecting arms 105. The upper connector 101 is connected to the dynamic conductive rod of the vacuum interrupter 7, and the lower connector 102 is hinged to the driving rod of the operating base 11. The swing arm 103 has one axial connection position and two hinge positions, and is respectively axially connected to the reinforcing rib structure arranged in the inner cavity of the sleeve 91, hinged to the lower connecting arm 105, and hinged to the upper connecting arm 104, and allows the linkage assembly 9 to swing to one side through the axial connection to quickly release the contact with the wire connection assembly 20 when driven by the operating base 11. The end of the upper connecting arm 104 that is not hinged to the swing arm 103 is hinged to the upper connector 101, and the end of the lower connecting arm 105 that is not hinged to the swing arm 103 is hinged to the lower connector 101. The arrangement enables the linkage assembly 10 to be connected to the moving conductive rod of the vacuum arc chamber 7 and the driving rod of the operating base 11 at the same time, and the upper connector 101 and the lower connector 102 are connected by a swing arm 103 and two upper connecting arms 104 and two lower connecting arms 105, so that the position of the swing arm 103 can be maintained at the same horizontal height as the wire connection assembly 20, and the position of the conductive end is adapted to the position of the wire connection assembly 20, and the connection between each component adopts a hinge or shaft method, so that the linkage assembly 10 is flexible as a whole, and its configuration preset form can change according to the position change of the moving conductive rod of the vacuum arc chamber 7 and the driving rod of the operating base 11, and after the change, the conductive end set on the swing arm 103 is quickly cut off from the wire connection assembly 20, and the conductive end on the swing arm 103 is coordinated with the acceleration assembly 30.In this embodiment, the upper connector 101 is composed of a screw 1011, a connecting block 1012, and a first connecting tongue 1013. The screw 1011 and the first connecting tongue 1013 are respectively arranged on the two end surfaces of the connecting block 1012. The screw 1011 is threadedly connected to the dynamic conductive rod of the vacuum interrupter 7, and the first connecting tongue 1013 is hinged to the connecting arm 104; the lower connector 102 is composed of a second connecting tongue 1022 and a U-shaped block 1023. The second connecting tongue 1022 is hinged to the lower connecting arm 105, and the U-shaped block 1023 is hinged to the driving rod of the operating base 11; the swing arm 103 is L-shaped, and the end of its horizontal section is provided with an axial connection position, and the end of the vertical section and the intersection of the horizontal section and the vertical section are provided with a hinge position. In this way, when the linkage assembly 10 is pulled, the swing arm 103 uses the axial connection position to swing circumferentially, so that the conductive end can be connected to the wire connection group in the first time after the swing. The upper connecting arm 104 is used to solve the problem that the swing arm 103 and the upper connector 101 cannot be directly connected. The lower connecting arm 105 is used to consider that the driving rod of the operating base 11 is in a straight line when opening or closing the switch. Therefore, a lower connecting arm 105 is provided so that the lower connecting arm 105 can swing to adapt when the swing arm 103 swings circumferentially, and does not affect the straight line of the driving rod of the operating base 11. The upper connecting arm 104 and the lower connecting arm 105 have the same configuration, that is, there is a protrusion in the middle area (the protrusion is used to make the two connecting arms have an overall convex shape), and the protrusion is in contact with the inner surface of the reinforcing rib structure provided in the inner cavity of the sleeve 91, thereby forming a side support for the connecting arm, that is, making the linkage assembly 10 more stable when it is in action and avoiding shaking.

[0046] A conductive block 1031 is provided at the right-angle end of the swing arm 103. The conductive block 1031 abuts against the wire connection assembly 20 when the switch is closed. The right-angle end is adjacent to the wire connection assembly 20. The purpose of providing the conductive block 1031 is, on the one hand, to abut against the wire connection assembly 20, and on the other hand, to cooperate with the acceleration assembly 30.

[0047] The wire connection assembly 20 includes a mounting base 201, a conductive sheet 202, and a wiring tube 203. The mounting base 201 is connected to the reinforcing rib structure of the inner cavity of the sleeve 91. The conductive sheet 202 is set in the mounting base 201 by bolts and abuts against the conductive block 202 when the switch is closed. The wiring tube 203 is fixedly set in the mounting base 201, and one end of it abuts against the conductive sheet 202, and the other end is used to connect the connecting wire 8. The mounting base 201 is used to simultaneously connect the conductive sheet 202 and the wiring tube 203. It has an opening at one end where the conductive sheet 202 is set, and the opening allows the conductive block 1031 to enter and abut against the conductive sheet 202. The wiring tube 203 is set at the other end of the mounting base 201 and abuts against the conductive sheet 202. The sheets 202 are arranged relative to each other, and the wiring tube 203 has a conductive segment 2031 and a wiring segment 2032. The conductive segment 2031 is in contact with the conductive sheet 202. The wiring segment 2032 has an inner cavity. One end face of the conductive segment 2031 is exposed in the inner cavity and a socket 20311 is provided on the exposed end face. The insulating outer covering of the connecting wire 8 that enters the wiring segment 2032 is stripped off, so that the conductive part is exposed in the inner cavity, and then one end enters the socket 20311. Fastening bolts are provided at the socket 20311 of the conductive segment 2031 and on the wiring segment 2032. The fastening bolts keep the conductive part in the socket 20311 and the inner cavity, thereby ensuring stable conduction.

[0048] The acceleration assembly 30 includes a rod sleeve 301 and a moving rod 302. The rod sleeve 301 is connected to the reinforcing rib structure set in the inner cavity of the sleeve 91. The moving rod 302 moves in the rod sleeve 301, and its upper end is located below the conductive block 202, and the lower end is connected to the lower connector 102. The rod sleeve 301 provides movement for the moving rod 302. The movement of the moving rod 302 in the rod sleeve 301 occurs when the swing arm 103 swings, that is, the movement is used to generate downward pressure on the lower connector 102. Since the lower connector 102 is connected to the driving rod of the operating base 11, the downward pressure is also transmitted to the driving rod, which can accelerate the downward movement speed of the driving rod, that is, the opening speed of the switch is also increased. In this embodiment, the inner cavity of the rod sleeve 301 has a stepped configuration, and the outer diameter of the moving rod 302 is consistent with the inner diameter of the small diameter section of the inner cavity, and the large diameter section of the inner cavity is used to set the second spring 304. The second spring is first placed in the rod sleeve 301, and then the moving rod 302 is inserted into the rod sleeve 301, and the outer circumferential surface of the moving rod 302 is provided with abutment ears 3022 symmetrically distributed on both sides and abutting against the upper end of the spring, so that when the moving rod 302 moves downward, the abutment ears 3022 can be used to squeeze the spring, and when the switch is closed, the elasticity generated by the compression deformation of the spring can also be used to reset the moving rod 302. The rod sleeve 301 is provided with a rod cap 3011 at its upper end, and the rod cap 3011 is used to confine the moving rod 302 in the rod sleeve 301, that is, the cooperation between the abutment ears 3022 and the rod cap 3011 is also used to prevent it from falling out. In this embodiment, a connecting block is fixed on the inner side surface of the reinforcing rib structure of the inner cavity of the sleeve 91, and a threaded hole is provided on the connecting block. The threaded hole is used to be threadedly connected to the rod sleeve 301, thereby fixing the rod sleeve 301 on the sleeve 91 in a convenient manner.

[0049] The lower connector 102 is provided with a connecting ear 1021 on the side close to the acceleration component 30, and the connecting ear 1021 is provided with a connecting ring 10211 which is connected to the moving rod 302 at the same time. The lower end of the moving rod 302 is provided with an abutment cap 3021 which can be adjusted to a telescopic length by rotation. The abutment cap 3021 abuts against the outer peripheral surface of the connecting ear 1021, and the connecting ear 1021 and the connecting ring 10211 are used to connect the moving rod 302 and the lower connector 102. This method is used to make up for the distance between the lower connector 2 and the moving rod 302. When opening or closing the switch, the moving rod 302 can move with the movement of the lower connector 102. Considering the connecting ear 10 21 and the connecting ring 10211 are connected in a sleeve type manner, so by setting an abutment cap 3021 at the lower end of the moving rod 302, the abutment cap 3021 and the moving rod 302 are threadedly connected, and the use position of the abutment cap 3021 can be adjusted by rotation. After the abutment cap 3021 abuts against the connecting ear 1021, the distance between the moving rod 302 and the connecting ear 1021 is compensated, thereby increasing the force effect. The downward pressure generated by the downward movement of the moving rod 302 will be immediately transmitted to the lower connecting head 2, which also means that it is transmitted to the driving rod of the operating base 11, and the rod sleeve 301 is set in the sleeve 91 by a threaded connection, so the moving rod 302 and the connecting ear 1021 will not rotate.

[0050] The column mounting frame 2 includes a support rod 21 and an oblique rod 22 hinged on the support rod 21. One end of the support rod 21 and the oblique rod 22 are both provided with a clamp 23. The sealing portion of the clamp 23 is provided with a shaft seat 231 for arranging the connecting shaft 24. The shaft seat 231 is provided with an assembly channel 40 extending along its width direction. The connecting shaft 24 is arranged in the assembly channel 40, and after being placed in the assembly channel 40, the connecting shaft 24 is located below the screw portion of the surrounding portion of the clamp 23. The outer circumferential surfaces of both ends of the connecting shaft 24 are provided with anti-rotation surfaces 241 that abut against the screw portion of the surrounding portion of the clamp 23. The support rod 21 is used to install the circuit breaker body 1, and the support rod 21 itself is also supported by the clamp. 23 is set on the electric pole, but considering that the circuit breaker body 1 is heavy, it is difficult to support it by relying solely on the clamp 23 at one end as a fixing point. Therefore, an inclined rod 22 is hingedly set at the other end of the support rod 21, and the other end of the inclined rod 22 is also provided with a clamp 23 connected to the electric pole, that is, a triangular configuration is formed to increase the structural stability of the pole installation 2, and an axial connection is adopted between the inclined rod 22 and the clamp 23. The axial connection occurs before the required installation position is adjusted (that is, the axial connection rotation needs to be limited after it is determined). The clamp 23 consists of two parts, namely a sealing part and a surrounding part. The surrounding part is inserted into the electric pole, and the sealing part is connected to the surrounding part so that when the clamp 23 is fixed on the electric pole, it can generate a fastening force to prevent it from falling off. The connection method of the two is that the screw part of the surrounding part passes through the sealing part and then the nut is screwed on. At the same time, the screw part can also be used as a limiting component to limit the rotation of the connecting shaft 24. That is, the connecting shaft 24 is placed in the assembly channel 40 provided on the shaft seat 231. The assembly channel 40 provides it with a final assembly position, and then the anti-rotation surfaces 241 at both ends of the connecting shaft 24 are abutted against the screw part to achieve anti-rotation. In this way, the connecting shaft 24 can be prevented from rotating accordingly when the inclined rod 22 or the support rod 21 rotates, and will not interfere with the use position adjustment of the inclined rod 22 or the support rod 21. The way of installing the channel 40 allows the diagonal rod 22 or the support rod 21 to be pre-set on the connecting shaft 24, and when it is installed on the electric pole, the connecting shaft 24 does not need to be installed on the sealing part first, which can reduce the difficulty of carrying. That is, after the sealing part and the surrounding part are pre-installed, the screw part has passed through the sealing part but has not reached the range of the assembly channel 40, and then the connecting shaft 24 with the installed diagonal rod 22 or the support rod 21 is passed through the assembly channel 40 to the final assembly position, and finally the final assembly of the clamp 23 is completed. After the use position adjustment of the diagonal rod 22 or the support rod 21 is completed, the rotation of the diagonal rod 22 or the support rod 21 is limited by the nut (there is a threaded part on the connecting shaft 24).

[0051] The assembly channel 40 includes a first introduction section 401, a second introduction section 402, and an end section 403 formed on the shaft seat 231. The first introduction section 401 and the second introduction section 402 are used to guide the connecting shaft 24 to the end section 403. Such a setting enables the connecting shaft 24 to quickly reach the final assembly position. The first introduction section 401 has an opening on the shaft seat 231, and the opening allows the connecting shaft 24 to enter the first introduction section 401. When reaching its end point, since the first introduction section 401, the second introduction section 402, and the end section 403 are all interconnected, the end point of the first introduction section 401 is also the starting point of the second introduction section 402, then it also instantly enters the second introduction section 402, and then enters the end section 403 through the second introduction section 402. The end section 403 is an arc-shaped hole that can adapt to the configuration of the connecting shaft 24. This method is convenient and fast, and can meet the requirements of first assembling the clamp 23 and then assembling the connecting shaft 24 with the inclined rod 22 or the support rod 21.

[0052] While the invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body (1), a pole mounting frame (2), a voltage transformer (3), an electronic sensor (4), a drop-out fuse (5), and a controller (6); the circuit breaker body (1) having an operating base (11) and a plurality of sealed poles (12) arranged on the operating base (11); a vacuum interrupter (7) is arranged inside the upper end of the vertical section of the sealed pole (12); and a horizontally extending connecting wire (8) is arranged inside the horizontal section; the opening and closing of the vacuum interrupter (7) is driven by the operating base (11); and the invention is characterized in that: Also includes a limiting component (9) disposed in the sealed pole (12), the limiting component (9) being used to limit the vacuum interrupter (7) to the upper end position of the vertical section of the sealed pole (12), and being connectable to other components as a connecting component; A conductive linkage assembly (10) is arranged in the limiting assembly (9), one end of the linkage assembly (10) is connected to the moving conductive rod of the vacuum interrupter (7), and the other end is connected to the driving rod of the operating base (11), so that when opening and closing the circuit breaker, the driving rod of the operating base (11) drives the linkage assembly (10) to change the preset form and drive the moving conductive rod of the vacuum interrupter (7) and its static conductive rod to open and close the circuit breaker; as well as A conductive wire connecting assembly (20) is provided in the limiting assembly (9), one end of the wire connecting assembly (20) is connected to the connecting wire (8), and the other end abuts against the conductive end of the linkage assembly (10), so that electrical conduction is achieved through abutment when the switch is closed, and when the switch is opened, the linkage assembly (10) is driven in the opening direction by the operating base (11) so that the conductive end is released from abutment with the wire connecting assembly (20); and An acceleration component (30) is arranged in the limiting component (9), the lower end of the acceleration component (30) is also connected to the linkage component (10), and the upper end is located below the conductive end of the linkage component (10), so that when the gate is opened, the linkage component (10) undergoes a preset shape change with the driving of the operating base (11) and abuts against the lower end of the linkage component (10), and allows the acceleration component (30) to be pressed down after the abutment to generate a downward force that is transmitted to the linkage component (10) to accelerate the gate opening speed.

2. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The limiting component (9) includes a sleeve (91) and a plurality of locking rods (92) arranged on the inner circumference of the inner cavity of the sleeve (91) and distributed in a ring array. The sleeve (91) enters the sealed pole (12) through a guide path provided by the inner cavity of the sealed pole (12) and abuts against the vacuum interrupter (7) after entering. A locking socket (121) is formed on the inner circumference of the inner cavity of the sealed pole (12). The locking rod (92) extends to the outside of the sleeve (91) and is plugged into the locking socket (121) to keep the sleeve (91) in the sealed pole (12) through plugging. The inner cavity of the sleeve (91) has a reinforcing rib structure, and the linkage component (10), the wire connection component (20), and the acceleration component (30) are connected through the reinforcing rib structure.

3. The primary and secondary integrated pole mounted circuit breaker according to claim 2, characterized in that: A first spring (93) is provided on the portion of the locking rod (92) located in the inner cavity of the sleeve (91), one end of the first spring (93) is welded to the cap portion of the locking rod (92), and the other end is welded to the inner circumference of the inner cavity of the sleeve (91).

4. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The linkage assembly (10) comprises an upper connector (101), a lower connector (102), a swing arm (103), two upper connecting arms (104), and two lower connecting arms (105), wherein the upper connector (101) is connected to the dynamic conductive rod of the vacuum interrupter (7), the lower connector (102) is hinged to the driving rod of the operating base (11), and the swing arm (103) has one axial connection position and two hinge positions, and is respectively axially connected to the reinforcing rib structure provided in the inner cavity of the sleeve (91) and to the lower connector (105). The connecting arm (105) is hinged and hinged to the upper connecting arm (104), and allows the linkage assembly (9) to swing the conductive end provided on the swing arm 103 to one side to quickly release the contact with the wire connection assembly (20) when driven by the operating base (11) through an axial connection. The end of the upper connecting arm (104) not hinged to the swing arm (103) is hinged to the upper connector (101), and the end of the lower connecting arm (105) not hinged to the swing arm (103) is hinged to the lower connector (101).

5. The primary and secondary integrated pole mounted circuit breaker according to claim 4, characterized in that: A conductive block (1031) is provided at the right-angle end of the swing arm (103), and the conductive block (1031) abuts against the wire connection assembly (20) when the switch is closed.

6. The primary and secondary integrated pole mounted circuit breaker according to claim 5, characterized in that: The wire connection assembly (20) comprises a mounting seat (201), a conductive sheet (202), and a wiring tube (203); the mounting seat (201) is connected to the reinforcing rib structure of the inner cavity of the sleeve (91); the conductive sheet (202) is arranged in the mounting seat (201) by bolts and abuts against the conductive block (202) when the switch is closed; the wiring tube (203) is fixedly arranged in the mounting seat (201), and one end of the wiring tube abuts against the conductive sheet (202), and the other end is used to connect the connecting wire (8).

7. The primary and secondary integrated pole mounted circuit breaker according to claim 5, characterized in that: The acceleration assembly (30) includes a rod sleeve (301) and a moving rod (302), wherein the rod sleeve (301) is connected to a reinforcing rib structure arranged in the inner cavity of the sleeve (91), and the moving rod (302) moves in the rod sleeve (301), and its upper end is located below the conductive block (202), and its lower end is connected to the lower connector (102).

8. The primary and secondary integrated pole mounted circuit breaker according to claim 8, characterized in that: A connecting ear (1021) is provided on the side of the lower connecting head (102) close to the accelerating assembly (30), and a connecting ring (10211) is mounted on the connecting ear (1021) and is connected to the moving rod (302). The lower end of the moving rod (302) is provided with an abutment cap (3021) whose telescopic length can be adjusted by rotation, and the abutment cap (3021) abuts against the outer peripheral surface of the connecting ear (1021).

9. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The column mounting frame (2) comprises a support rod (21) and an inclined rod (22) hinged to the support rod (21); one end of each of the support rod (21) and the inclined rod (22) is provided with a clamp (23); a shaft seat (231) for arranging a connecting shaft (24) is provided on the sealing portion of the clamp (23); an assembly channel (40) extending along its width direction is provided on the shaft seat (231); the connecting shaft (24) is arranged in the assembly channel (40), and after being placed in the assembly channel (40), the connecting shaft (24) is located below the screw portion of the surrounding portion of the clamp (23); and a rotation-stopping surface (241) abutting against the screw portion of the surrounding portion of the clamp (23) is provided on the outer peripheral surface of both ends of the connecting shaft (24).

10. The primary and secondary integrated pole mounted circuit breaker according to claim 9, characterized in that: The assembly channel (40) includes a first introduction section (401), a second introduction section (402), and an end section (403) formed on the shaft seat (231), wherein the first introduction section (401) and the second introduction section (402) are used to guide the connecting shaft (24) to reach the end section (403).

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