Combined switch

Abstract

The utility model discloses a combined switch. The combined switch comprises a fixing frame, a circuit breaker, an isolating switch, an outgoing line bar, a grounding switch and a linkage assembly, the circuit breaker comprises a solid-sealed polar pole, the solid-sealed polar pole penetrates through the fixing frame, and one end of the isolating switch is connected with the first end of the solid-sealed polar pole; the outgoing line bar is connected to the second end of the solid-sealed polar pole; the grounding switch is arranged on the fixing frame; one end of the linkage assembly is connected with the isolation switch, and the other end is connected with the grounding switch. When the isolating switch is operated to be switched on, the linkage assembly drives the grounding switch to be disconnected from the outgoing line bar. When the disconnecting switch is operated to be switched off, the linkage assembly drives the grounding switch to be connected with the outgoing line bar. According to the technical scheme, the separation operation process of the isolation switch and the grounding switch can be effectively reduced, and the operation process is simplified.

Description

Technical Field

[0001] This application belongs to the technical field of switches, and particularly relates to a combined switch. Background Art

[0002] In a box-type substation cabinet, it is usually necessary to assemble a circuit breaker, a disconnecting switch, a grounding switch, etc. The disconnecting switch and the grounding switch are separately arranged and perform on-off operations independently. In this way, during maintenance, the disconnecting switch and the grounding switch need to be operated separately, and the entire on-off operation process is cumbersome. Summary of the Utility Model

[0003] The purpose of this application is to provide a combined switch, which can effectively reduce the process of operating the disconnecting switch and the grounding switch separately and simplify the operation process.

[0004] Other features and advantages of this application will become apparent through the following detailed description, or will be learned in part through the practice of this application.

[0005] According to one aspect of the embodiments of this application, this application provides a combined switch, and the combined switch includes:

[0006] A fixing frame;

[0007] A circuit breaker, the circuit breaker is arranged on the fixing frame, and the circuit breaker includes a solid-sealed pole column, and the solid-sealed pole column penetrates through the fixing frame;

[0008] A disconnecting switch, one end of the disconnecting switch is connected to the first end of the solid-sealed pole column;

[0009] An outgoing line row, the outgoing line row is connected to the second end of the solid-sealed pole column;

[0010] A grounding switch, the grounding switch is arranged on the fixing frame;

[0011] A linkage assembly, one end of the linkage assembly is connected to the disconnecting switch, and the other end is connected to the grounding switch;

[0012] When the disconnecting switch is operated to close, the linkage assembly drives the grounding switch to disconnect from the outgoing line row;

[0013] When the disconnecting switch is operated to open, the linkage assembly drives the grounding switch to connect to the outgoing line row.

[0014] In one aspect, the linkage assembly includes:

[0015] A first driving shaft, the first driving shaft is arranged on the fixing frame, and one end of the grounding switch is connected to the first driving shaft;

[0016] A crank arm assembly, one end of which is connected to the first drive shaft, and the other end of which is connected to the isolating switch, and the crank arm assembly is used to connect and drive the isolating switch and the first drive shaft in linkage.

[0017] In one aspect, the crank arm assembly comprises:

[0018] a first crank arm, wherein a first end of the first crank arm is connected to the first driving shaft;

[0019] A connecting rod, a first end of which is connected to the second end of the first crank arm;

[0020] An operating shaft, the operating shaft being arranged on the fixing frame;

[0021] A second crank arm, wherein a first end of the second crank arm is connected to the operating shaft, and a second end of the second crank arm is connected to the second end of the connecting rod;

[0022] A third crank arm, wherein a first end of the third crank arm is connected to the operating shaft, the third crank arm and the second crank arm are arranged at an angle, and the third crank arm and the second crank arm rotate synchronously with the operating shaft;

[0023] An insulating rod, wherein a first end of the insulating rod is connected to the isolating switch, and a second end of the insulating rod is connected to the second end of the third arm.

[0024] In one aspect, the combination switch further comprises:

[0025] a first supporting insulator, which is arranged on the fixing frame and on the same side as the isolating switch;

[0026] An incoming line row is arranged at one end of the first supporting insulator away from the fixing frame, one end of the isolating switch is rotatably connected to the sealed pole, and the other end of the isolating switch is connected to the incoming line row.

[0027] In one aspect, the combined switch further comprises a support plate, wherein two support plates are provided, and the two support plates are provided on one side of the fixing frame;

[0028] The combined switch also includes:

[0029] A second drive shaft is provided through the two support plates, one end of the circuit breaker is connected to the second drive shaft, and the second drive shaft rotates to drive the circuit breaker to switch between the on position and the off position.

[0030] In one aspect, the combination switch further comprises:

[0031] A trip release, the trip release is arranged on the support plate, the trip release drives the second drive shaft to rotate, there are two trip releases, and the two trip releases are arranged in parallel.

[0032] In one aspect, the combined switch further includes:

[0033] A trip half shaft, the trip half shaft is associated with the trip release, and the trip release drives the trip half shaft to rotate;

[0034] A trip release plate, one end of the trip release plate abuts against the trip half shaft;

[0035] A rotating plate, the rotating plate is connected to the second drive shaft, one end of the rotating plate is provided with a roller, and the roller abuts against the end of the trip release plate far from the trip half shaft.

[0036] In one aspect, the circuit breaker further includes an insulating pull rod and a transmission assembly, one end of the insulating pull rod is connected to the second drive shaft, one end of the transmission assembly is connected to the insulating pull rod, and the other end of the transmission assembly is connected to the second end of the solid-sealed pole column;

[0037] There are multiple circuit breakers, disconnecting switches and earthing switches, and the circuit breakers, disconnecting switches and earthing switches are arranged in one-to-one correspondence;

[0038] The multiple disconnecting switches are interlocked, and the multiple earthing switches are interlocked.

[0039] In one aspect, the combined switch further includes:

[0040] A second support insulator, the second support insulator is arranged on the fixed frame and on the same side as the circuit breaker, the circuit breaker and the disconnecting switch are respectively arranged on both sides of the fixed frame, the outgoing line row is arranged on the side of the second support insulator away from the fixed frame, and the outgoing line row is connected to the circuit breaker.

[0041] In one aspect, the combined switch further includes:

[0042] A rotating shaft, the rotating shaft is arranged at the first end of the solid-sealed pole column and passes through the disconnecting switch, and convex portions are formed on both sides of the rotating shaft with respect to the disconnecting switch;

[0043] A grading ring, the grading ring covers the convex portions of the rotating shaft.

[0044] In this application, during maintenance, the circuit breaker and the disconnector should be disconnected, while the earthing switch should be connected to the outgoing busbar, that is, the earthing switch is grounded. When the disconnector is switched to the open state, the linkage component drives the earthing switch to connect to the outgoing busbar, realizing the grounding of the earthing switch. When the disconnector is switched to the closed state, the linkage component drives the earthing switch to disconnect from the outgoing busbar. It can be seen that through the linkage component, the interlocking of the disconnector and the earthing switch can be realized, and the state switching of the disconnector and the earthing switch can be completed simultaneously with one operation, thereby reducing the process of separate operation of the disconnector and the earthing switch and simplifying the operation process.

[0045] It should be understood in this application that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Obviously, the drawings in the following description are only some embodiments of this application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0047] Figure 1 Schematically shows a front structural view of the disconnector in the closed state in the combined switch of this application.

[0048] Figure 2 Schematically shows a side structural view of the disconnector in the closed state in the combined switch of this application.

[0049] Figure 3 Schematically shows a front structural view of the disconnector in the open state in the combined switch of this application.

[0050] Figure 4 Schematically shows a side structural view of the disconnector in the open state in the combined switch of this application.

[0051] Figure 5 Schematically shows a position structural view of the opening release in the combined switch of this application.

[0052] Figure 6 Schematically shows a position structural view of the opening half shaft, the release plate and the rotating plate when the circuit breaker is in the closed position in the combined switch of this application.

[0053] Figure 7 Schematically shows this application Figure 6 of the side structural view.

[0054] Figure 8Schematically shows the positional structure diagram of the opening half shaft, the release plate and the rotating plate when the circuit breaker in the combined switch of the present application is in the opening process.

[0055] Figure 9 Schematically shows the present application Figure 8 of the side structure diagram.

[0056] Figure 10 Schematically shows the positional structure diagram of the opening half shaft, the release plate and the rotating plate when the circuit breaker in the combined switch of the present application is in the open position.

[0057] Figure 11 Schematically shows the partial structure diagram of the disconnecting switch in the combined switch of the present application.

[0058] The description of the reference numerals is as follows:

[0059] 110, fixed frame; 111, support plate; 120, solid-sealed pole column; 121, insulating pull rod; 122, transmission assembly; 130, disconnecting switch; 140, circuit breaker; 150, outgoing busbar; 160, earthing switch; 170, linkage assembly; 180, first support insulator; 190, incoming busbar; 210, second driving shaft; 220, opening release; 230, opening half shaft; 240, release plate; 250, rotating plate; 260, roller; 270, second support insulator; 280, rotating shaft; 290, grading ring;

[0060] 171, first driving shaft; 172, first crank arm; 173, connecting rod; 174, operating shaft; 175, second crank arm; 176, third crank arm; 177, insulating rod. Detailed implementation manners

[0061] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0062] Referring to Figures 1 to 4 as shown, the present application provides a combined switch, which includes: a fixed frame 110, a disconnecting switch 130, a circuit breaker 140, an outgoing busbar 150, an earthing switch 160 and a linkage assembly 170. The fixed frame 110 is used to provide a supporting force. The disconnecting switch 130, the circuit breaker 140, the outgoing busbar 150, the earthing switch 160 and the linkage assembly 170 are all arranged on the fixed frame 110.

[0063] The circuit breaker 140 is arranged on the fixing frame 110, and the circuit breaker 140 includes a solid-sealed pole column 120. The solid-sealed pole column 120 passes through the fixing frame 110; both ends of the solid-sealed pole column 120 pass through the fixing frame 110 respectively. Define one end of the solid-sealed pole column 120 located on one end of the fixing frame 110 as the first end, and the other end located on the other end of the fixing frame 110 as the second end. The solid-sealed pole column 120 refers to an independent component formed by encapsulating a vacuum interrupter or a vacuum interrupter, a conductive connection and a terminal with a solid insulating material.

[0064] One end of the disconnecting switch 130 is connected to the first end of the solid-sealed pole column 120; the disconnecting switch 130 has two states, a closing state and a tripping state. When the disconnecting switch 130 is in the closing state, the disconnecting switch 130 is conducting and the electrical signal can pass through. When the disconnecting switch 130 is in the tripping state, the disconnecting switch 130 is disconnected and the electrical signal cannot pass through. Generally, when the circuit breaker 140 is disconnected, the disconnecting switch 130 also needs to be disconnected. When the circuit breaker 140 is connected, the disconnecting switch 130 also needs to be connected.

[0065] The outgoing line row 150 is arranged on the fixing frame 110, and the outgoing line row 150 is used for grounding; the outgoing line row 150 is usually an outgoing copper row, and copper has excellent electrical conductivity and can ground well.

[0066] The earthing switch 160 is arranged on the fixing frame 110 and is close to the outgoing line row 150; the earthing switch 160 also has two states, that is, a contact state where the earthing switch 160 contacts the outgoing line row 150, and a disconnecting state where the earthing switch 160 is away from the outgoing line row 150.

[0067] One end of the linkage component 170 is connected to the disconnecting switch 130, and the other end is connected to the earthing switch 160; through the linkage component 170, the disconnecting switch 130 and the earthing switch 160 can be linked together. When one of them performs a switching action, the other will also perform a corresponding switching action.

[0068] When the disconnecting switch 130 is operated to close, the linkage component 170 drives the earthing switch 160 to disconnect from the outgoing line row 150; when the disconnecting switch 130 is operated to trip, the linkage component 170 drives the earthing switch 160 to connect to the outgoing line row 150.

[0069] In this embodiment, during maintenance, the circuit breaker 140 and the disconnecting switch 130 need to be disconnected, while the earthing switch 160 needs to be connected to the outgoing line busbar 150, that is, the earthing switch 160 is grounded. When the disconnecting switch 130 is switched to the open state, the linkage assembly 170 drives the earthing switch 160 to connect with the outgoing line busbar 150, realizing the grounding of the earthing switch 160. When the disconnecting switch 130 is switched to the closed state, the linkage assembly 170 drives the earthing switch 160 to disconnect from the outgoing line busbar 150. It can be seen that through the linkage assembly 170, the interlock between the disconnecting switch 130 and the earthing switch 160 can be realized, and the state switching of the disconnecting switch 130 and the earthing switch 160 can be completed simultaneously with one operation, thereby reducing the process of separate operation of the disconnecting switch 130 and the earthing switch 160 and simplifying the operation process.

[0070] In this application, the circuit breaker 140, the disconnecting switch 130, and the earthing switch 160 are combined into an integrated product. During power transmission and power outage maintenance operations, the operation process between the circuit breaker 140, the disconnecting switch 130, and the earthing switch 160 can be effectively simplified. At the same time, since the three switches are combined on the same product and are miniaturized, the volume of the box-type substation cabinet is greatly reduced, the floor area of the cabinet is decreased, and the cost is lowered.

[0071] In an embodiment of this application, the linkage assembly 170 includes: a first drive shaft 171 and a crank arm assembly.

[0072] The first drive shaft 171 is arranged on the fixed frame 110. One end of the earthing switch 160 is connected to the first drive shaft 171. When the first drive shaft 171 rotates, it drives the earthing switch 160 to abut against or move away from the outgoing line busbar 150; when the first drive shaft 171 rotates counterclockwise or clockwise, the earthing switch 160 will rotate along with the first drive shaft 171, causing the end of the earthing switch 160 away from the first drive shaft 171 to swing to different positions, thereby realizing abutting against or moving away from the outgoing line busbar 150.

[0073] One end of the crank arm assembly is connected to the first drive shaft 171, and the other end of the crank arm assembly is connected to the disconnecting switch 130. The crank arm assembly is used to connect and drive the disconnecting switch 130 and the first drive shaft 171 to interlock, thereby realizing the synchronous rotation of the disconnecting switch 130 and the earthing switch 160.

[0074] Further, in an embodiment of this application, the crank arm assembly includes: a first crank arm 172, a connecting rod 173, an operating shaft 174, a second crank arm 175, a third crank arm 176, and an insulating rod 177.

[0075] The first end of the first crank arm 172 is connected to the first drive shaft 171, and the second end of the first crank arm 172 extends towards the disconnecting switch 130. The first crank arm 172 will rotate along with the first drive shaft 171.

[0076] The first end of the connecting rod 173 is connected to the second end of the first toggle arm 172; that is to say, the first end of the connecting rod 173 is connected to the end of the first toggle arm 172 away from the first drive shaft 171. The operating shaft 174 is arranged on the fixed frame 110.

[0077] The first end of the second toggle arm 175 is connected to the operating shaft 174, and the second end of the second toggle arm 175 is connected to the second end of the connecting rod 173; the first toggle arm 172 and the second toggle arm 175 are connected together by the connecting rod 173, and the power between the first toggle arm 172 and the second toggle arm 175 can be transmitted to each other.

[0078] The first end of the third toggle arm 176 is connected to the operating shaft 174, the third toggle arm 176 and the second toggle arm 175 are arranged at an angle, and the third toggle arm 176 and the second toggle arm 175 rotate synchronously with the operating shaft 174; the angle between the third toggle arm 176 and the second toggle arm 175 is fixed. Specifically, both the third toggle arm 176 and the second toggle arm 175 are arranged on the same operating shaft 174, the driving force of the connecting rod 173 acts on the second toggle arm 175, the second toggle arm 175 drives the drive shaft to rotate, and the third toggle arm 176 rotates synchronously therewith.

[0079] The first end of the insulating rod 177 is connected to the disconnecting switch 130, and the second end of the insulating rod 177 is connected to the second end of the third toggle arm 176. The disconnecting switch 130 has a certain length, and the insulating rod 177 can be connected to the middle position of the disconnecting switch 130. By the rotation of the third toggle arm 176 with the operating shaft 174, the insulating rod 177 can be pushed or pulled, and the disconnecting switch 130 will be driven to close or open during the pushing or pulling process of the insulating rod 177. Moreover, the space can be fully utilized by arranging the third toggle arm 176 and the second toggle arm 175 at an angle.

[0080] Combining the above embodiments, the present application combines Figure 1 and Figure 3 As shown, the linkage process of the linkage assembly 170 for the disconnecting switch 130 and the earthing switch 160 is further described. When the disconnecting switch 130 is in the closed state, the earthing switch 160 is disconnected from the outgoing line busbar 150.

[0081] When performing the opening operation, rotate the operating shaft 174 counterclockwise. The second toggle arm 175 and the third toggle arm 176 rotate counterclockwise. The third toggle arm 176 drives the insulating rod 177 to move and applies a thrust force to the insulating rod 177. The thrust force is transmitted through the insulating rod 177 to the disconnecting switch 130. Under the action of the thrust force, the disconnecting switch 130 realizes the opening operation. At the same time, the second toggle arm 175 pushes the connecting rod 173. The connecting rod 173 drives the first toggle arm 172 to rotate counterclockwise. The first driving shaft 171 rotates counterclockwise along with the first toggle arm 172. Driven by the first driving shaft 171, the earthing switch 160 also rotates counterclockwise, thus coming into contact with the outgoing line busbar 150 to realize earthing.

[0082] When performing the closing operation, rotate the operating shaft 174 clockwise. The second toggle arm 175 and the third toggle arm 176 rotate clockwise. The third toggle arm 176 drives the insulating rod 177 to move and applies a pulling force to the insulating rod 177. The pulling force is transmitted through the insulating rod 177 to the disconnecting switch 130. Under the action of the pulling force, the disconnecting switch 130 realizes the closing operation. At the same time, the second toggle arm 175 pulls the connecting rod 173. The connecting rod 173 drives the first toggle arm 172 to rotate clockwise. The first driving shaft 171 rotates clockwise along with the first toggle arm 172. Driven by the first driving shaft 171, the earthing switch 160 also rotates clockwise, thus disconnecting the contact with the outgoing line busbar 150.

[0083] The above embodiments are realized by rotating the operating shaft 174, and can also be realized by other structures on the toggle arm assembly, for example, by rotating the first driving shaft 171.

[0084] The specific process can be as follows: When performing the opening operation, the first driving shaft 171 rotates counterclockwise. The earthing switch 160 rotates counterclockwise along with the first driving shaft 171. The earthing switch 160 comes into contact with the outgoing line busbar 150, and the earthing switch 160 is earthed. The first toggle arm 172 also rotates counterclockwise along with the first driving shaft 171. The first toggle arm 172 swings downward and pulls the connecting rod 173 to move downward as well. Through the downward movement of the connecting rod 173, it drives the second toggle arm 175 to rotate counterclockwise with the operating shaft 174 as the center. The acting force of the connecting rod 173 is transmitted to the operating shaft 174 through the second toggle arm 175. The operating shaft 174 also rotates counterclockwise accordingly, and the third toggle arm 176 rotates counterclockwise accordingly. The second end of the third toggle arm 176 will push the insulating rod 177, and through the insulating rod 177, it pushes the disconnecting switch 130, so that the disconnecting switch 130 switches from the closed state to the open state.

[0085] When performing the closing operation, the first drive shaft 171 rotates clockwise, and the earthing switch 160 also rotates clockwise, disconnecting the earthing switch 160 from the outgoing line row 150. The first toggle arm 172 rotates clockwise with the first drive shaft 171, and the connecting rod 173 moves upward. By the upward movement of the connecting rod 173, the second toggle arm 175 rotates clockwise. The operating shaft 174 and the third toggle arm 176 both rotate clockwise accordingly, and the second end of the third toggle arm 176 pulls the insulating rod 177, driving the disconnecting switch 130 to close through the insulating rod 177.

[0086] In an embodiment of the present application, the combined switch further includes: a first support insulator 180 and an incoming line row 190. The incoming line row 190 can be an incoming copper row. The first support insulator 180 is disposed on the fixed frame 110 and is arranged on the same side as the disconnecting switch 130; the first support insulator 180 can be fixed on the fixed frame 110, and the distal end of the first support insulator 180 is flush with the first end of the solid-sealed pole column 120. In this way, the disconnecting switch 130 can be set more flatly, avoiding the situation where one end of the outgoing line is too high and the other end is too low. That is to say, the surface of the disconnecting switch 130 relative to the fixed frame 110 can be more flat.

[0087] The incoming line row 190 is disposed at one end of the first support insulator 180 away from the fixed frame 110. One end of the disconnecting switch 130 is rotatably connected to the solid-sealed pole column 120, and the other end of the disconnecting switch 130 is connected to the incoming line row 190. When the disconnecting switch 130 is in the closed state, the incoming line row 190 is connected to the first end of the solid-sealed pole column 120. When the disconnecting switch 130 is in the open state, the incoming line row 190 is disconnected from the first end of the solid-sealed pole column 120.

[0088] In an embodiment of the present application, the combined switch further includes two support plates 111, which are disposed on one side of the fixed frame 110; there is a certain distance between the two support plates 111.

[0089] The combined switch further includes: a second drive shaft 210, which passes through the two support plates 111, and the second drive shaft 210 can rotate on the support plates 111. One end of the circuit breaker 140 is connected to the second drive shaft 210, and the rotation of the second drive shaft 210 drives the circuit breaker 140 to switch between the closed position and the open position. By the rotation of the second drive shaft 210, the circuit breaker 140 can be driven to reciprocate between the closed position and the open position. The second drive shaft 210 is parallel to the extension direction of the first drive shaft 171.

[0090] In an embodiment of the present application, the circuit breaker 140 further includes an insulating pull rod 121 and a transmission assembly 122. One end of the insulating pull rod 121 is connected to the second drive shaft 210. One end of the transmission assembly 122 is connected to the insulating pull rod 121, and the other end of the transmission assembly 122 is connected to the second end of the solid-sealed pole column 120. When the second drive shaft 210 rotates, it drives the insulating pull rod 121 to move. For example, when the second drive shaft 210 rotates counterclockwise, a pulling force is provided to the insulating pull rod 121. When the second drive shaft 210 rotates clockwise, a pushing force is provided to the insulating pull rod 121. Under the action of the pushing force or pulling force, the insulating pull rod 121 synchronously drives the transmission assembly 122 to move, realizing the reciprocating movement of the circuit breaker 140 between the closed position and the open position.

[0091] A plurality of circuit breakers 140, disconnecting switches 130, and earthing switches 160 are provided. The circuit breakers 140, disconnecting switches 130, and earthing switches 160 are arranged in one-to-one correspondence. The plurality of disconnecting switches 130 are interlocked, and the plurality of earthing switches 160 are interlocked, so that the operations of the plurality of disconnecting switches 130 and the plurality of earthing switches 160 are synchronized.

[0092] Refer to Figure 5 As shown, in an embodiment of the present application, the combined switch further includes: a trip release 220. The trip release 220 is arranged on the support plate 111. The trip release 220 drives the second drive shaft 210 to rotate. Two trip releases 220 are provided and arranged in parallel. The trip release 220 can directly or indirectly push the second drive shaft 210 to rotate through electromagnetic action. With two trip releases 220, when one of them fails, the other can play a role, reducing the occurrence of the failure of the circuit breaker 140.

[0093] Refer to Figures 6 to 10 As shown, in an embodiment of the present application, the circuit breaker 140 further includes: a trip half shaft 230, a release plate 240, and a rotating plate 250.

[0094] The opening half shaft 230 is connected to the opening release 220 in an associated manner, and the opening release 220 drives the opening half shaft 230 to rotate; one end of the release plate 240 abuts against the opening half shaft 230; the rotating plate 250 is connected to the second drive shaft 210, and a roller 260 is provided at one end of the rotating plate 250, and the roller 260 abuts against the end of the release plate 240 away from the opening half shaft 230. The release plate 240 has an arc-shaped edge, and the arc-shaped edge of the release plate 240 faces the rotating plate 250. After the opening release 220 drives the opening half shaft 230 to rotate, the opening half shaft 230 loses the abutting effect on the release plate 240, and one end of the release plate 240 will cut into the groove of the opening half shaft 230. At this time, the roller 260 of the rotating plate 250 also disengages from the abutment with the release plate 240 and rolls along the arc-shaped edge of the release plate 240, that is, the rotating plate 250 also realizes rotation. Through the rotation of the rotating plate 250, the second drive shaft 210 is driven to rotate, and then the position switching of the circuit breaker 140 is driven. The associated connection between the opening half shaft 230 and the opening release 220 means that the rotational force of the opening half shaft 230 can be transmitted to the opening release 220.

[0095] Wherein, when the release plate 240 rotates, the lower part of the arc-shaped edge of the release plate 240 can abut against the roller 260, and the roller 260 moves downward along the arc-shaped edge and limits the release plate 240. The release plate 240 resets outside the opening half shaft 230, and at this time, the disconnection of the circuit breaker 140 is completed.

[0096] In an embodiment of the present application, the combined switch further includes: a second support insulator 270, the second support insulator 270 is disposed on the fixed frame 110 and is disposed on the same side as the circuit breaker 140. The circuit breaker 140 and the disconnecting switch 130 are respectively disposed on opposite sides of the fixed frame 110. The outgoing line row 150 is disposed on the side of the second support insulator 270 away from the fixed frame 110, and the outgoing line row 150 is connected to the circuit breaker 140. The signal passing through the circuit breaker 140 can also directly flow to the ground. For example, the closed position of the circuit breaker 140 is close to the fixed frame 110, and the open position is far from the fixed frame 110. The circuit breaker 140 can be switched between a position close to the fixed frame 110 and a position far from the fixed frame 110. When switched to the open position, the circuit breaker 140 can be directly connected to the outgoing line row, thereby grounding.

[0097] Refer to Figure 11As shown, in an embodiment of the present application, the combined switch further includes: a rotating shaft 280 and a voltage equalizing cover 290. The rotating shaft 280 is disposed at the first end of the solid-sealed pole column 120 and penetrates through the disconnecting switch 130. The rotating shaft 280 forms protruding portions on both sides of the disconnecting switch 130; the voltage equalizing cover 290 covers the protruding portions of the rotating shaft 280. In this embodiment, by arranging the voltage equalizing cover 290 at both axial ends of the rotating shaft 280, the protruding portions of the rotating shaft 280 are covered, thereby reducing the situation where the tip of the disconnecting switch 130 is exposed to the external environment. Thus, the external tip of the disconnecting switch 130 is reduced, and then the tip discharge of the disconnecting switch 130 is reduced.

[0098] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include the well-known common knowledge or conventional technical means in the technical field not disclosed in the present application.

[0099] It should be understood that the present application is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A combined switch, characterized in that, The combined switch comprises: Fixed frame; A circuit breaker, the circuit breaker is arranged on the fixing frame, the circuit breaker comprises a sealed pole, and the sealed pole is passed through the fixing frame; An isolating switch, one end of which is connected to the first end of the sealed pole; An outgoing line row connected to the second end of the sealed pole; A grounding switch, wherein the grounding switch is arranged on the fixing frame; A linkage component, one end of which is connected to the isolating switch, and the other end of which is connected to the grounding switch; When the isolating switch is closed, the linkage assembly drives the grounding switch to be disconnected from the outgoing line bar; When the isolating switch is operated to open, the linkage assembly drives the grounding switch to connect with the outgoing line bar.

2. The combined switch according to claim 1, wherein The linkage components include: a first driving shaft, the first driving shaft being disposed on the fixing frame, and one end of the grounding switch being connected to the first driving shaft; A crank arm assembly, one end of which is connected to the first drive shaft, and the other end of which is connected to the isolating switch, and the crank arm assembly is used to connect and drive the isolating switch and the first drive shaft in linkage.

3. The combined switch according to claim 2, wherein, The crank arm assembly comprises: a first crank arm, wherein a first end of the first crank arm is connected to the first driving shaft; A connecting rod, a first end of which is connected to the second end of the first crank arm; An operating shaft, the operating shaft being arranged on the fixing frame; A second crank arm, wherein a first end of the second crank arm is connected to the operating shaft, and a second end of the second crank arm is connected to the second end of the connecting rod; A third crank arm, wherein a first end of the third crank arm is connected to the operating shaft, the third crank arm and the second crank arm are arranged at an angle, and the third crank arm and the second crank arm rotate synchronously with the operating shaft; An insulating rod, wherein a first end of the insulating rod is connected to the isolating switch, and a second end of the insulating rod is connected to the second end of the third arm.

4. The combined switch according to claim 1, characterized in that, The combined switch also includes: a first supporting insulator, which is arranged on the fixing frame and on the same side as the isolating switch; An incoming line row is arranged at one end of the first supporting insulator away from the fixing frame, one end of the isolating switch is rotatably connected to the sealed pole, and the other end of the isolating switch is connected to the incoming line row.

5. The combined switch according to claim 1, characterized in that The combined switch further comprises a support plate, wherein two support plates are provided, and the two support plates are arranged on one side of the fixing frame; The combined switch also includes: A second drive shaft is provided through the two support plates, one end of the circuit breaker is connected to the second drive shaft, and the second drive shaft rotates to drive the circuit breaker to switch between the on position and the off position.

6. The combined switch according to claim 5, characterized in that, The combined switch also includes: The opening release is arranged on the support plate, the opening release drives the second driving shaft to rotate, two opening releases are arranged, and the two opening releases are arranged in parallel.

7. The combined switch according to claim 6, wherein, The combined switch also includes: A switch-off half-shaft, the switch-off half-shaft is associated with the switch-off release, and the switch-off release drives the switch-off half-shaft to rotate; A trip plate, one end of which abuts against the opening half shaft; Rotating plate, the rotating plate is connected to the second drive shaft, one end of the rotating plate is provided with a roller, and the roller abuts against one end of the release plate away from the opening half shaft.

8. The combined switch according to claim 5, wherein The circuit breaker further includes an insulating pull rod and a transmission assembly. One end of the insulating pull rod is connected to the second drive shaft. One end of the transmission assembly is connected to the insulating pull rod, and the other end of the transmission assembly is connected to the second end of the solid-sealed pole column. A plurality of the circuit breakers, the disconnect switches and the earthing switches are provided, and the circuit breakers, the disconnect switches and the earthing switches are arranged in one-to-one correspondence. The plurality of disconnect switches are linked, and the plurality of earthing switches are linked.

9. The combined switch according to claim 1, characterized in that, The combined switch further includes: Second support insulator, the second support insulator is arranged on the fixed frame and on the same side as the circuit breaker. The circuit breaker and the disconnect switch are respectively arranged on both sides of the fixed frame. The outgoing line row is arranged on the side of the second support insulator away from the fixed frame, and the outgoing line row is connected to the circuit breaker.

10. The combined switch according to claim 1, characterized in that, The combined switch further includes: Rotating shaft, the rotating shaft is arranged at the first end of the solid-sealed pole column and passes through the disconnect switch. The rotating shaft forms convex portions on both sides of the disconnect switch. Voltage equalizing cover, the voltage equalizing cover covers the convex portions of the rotating shaft.

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