Power supply switching device based on high-voltage isolation switch

Abstract

The utility model provides a power supply switching device based on a high-voltage isolation switch. The power supply switching device based on the high-voltage isolation switch comprises a mounting rack, a first isolation switch, a second isolation switch, a connecting shaft and a driving assembly. The first isolating switch is provided with a first transmission mechanism for controlling the on-off of the switch, the second isolating switch is provided with a second transmission mechanism for controlling the on-off of the switch, and the first transmission mechanism and the second transmission mechanism are coaxial and are connected with the connecting shaft. According to the power supply switching device based on the high-voltage isolation switch, the first isolation switch and the second isolation switch are arranged side by side, so that the first transmission mechanism and the second transmission mechanism are coaxial, and the first transmission mechanism and the second transmission mechanism can be driven to move at the same time only through one connecting shaft. The linkage mechanism controls on and off of the first isolation switch and the second isolation switch to complete switching of the first power supply side and the second power supply side, the linkage mechanism is only a connecting shaft, the structure is simpler, and the reliability is relatively high.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, specifically relating to a power switching device based on a high-voltage disconnect switch. Background Technology

[0002] Important sectors such as railways and subways typically require at least one primary power source and one backup power source to ensure power supply, and to switch to the other power source when one power source is under maintenance.

[0003] A current type of changeover switch mainly consists of a conductive base, two transmission mechanisms, two stationary contacts, two conductive arms, a linkage mechanism, and an operating mechanism. The conductive base is located in the middle. One end of each of the two conductive arms is rotatably connected to the conductive base, and the other end is a moving contact. The conductive base is electrically connected to the cable on the receiving side. The two stationary contacts are electrically connected to the cables of two power sources and are respectively located on both sides of the conductive base. The two transmission mechanisms are respectively located between the conductive base and the two stationary contacts. One end of each transmission mechanism is a power input end and is adapted to rotate around an axis. The other end is connected to the conductive arm to receive the torque from the operating mechanism and transmit the motion to the conductive arm to complete the opening and closing action. The linkage mechanism is usually a crank-rocker mechanism, connected to the two transmission mechanisms, to make the two transmission mechanisms move synchronously. When one conductive arm contacts the corresponding stationary contact, the other conductive arm separates from the corresponding stationary contact, completing the power switching. Therefore, the above changeover switch is equivalent to two disconnecting switches sharing a single conductive base, with the two transmission mechanisms located on opposite sides of the conductive base.

[0004] However, the aforementioned switch has the following drawbacks: the two transmission mechanisms are located on opposite sides of the conductive base, thus requiring a crank-rocker linkage mechanism to ensure synchronous movement of the two transmission mechanisms. This results in a relatively complex structure and reduced reliability. If the crank-rocker linkage mechanism fails, both conductive arms may simultaneously contact or separate from the two stationary contacts, leading to a dangerous situation where both power supplies are connected simultaneously or disconnected simultaneously. Utility Model Content

[0005] This invention provides a power switching device based on a high-voltage disconnect switch, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a power switching device based on a high-voltage disconnect switch, comprising:

[0007] Mounting rack;

[0008] The first disconnecting switch is connected to the mounting bracket, and its two ends are respectively connected to the first power supply side cable and the power receiving side cable; the first disconnecting switch is provided with a first transmission mechanism, which is adapted to rotate around the power input end to control the opening and closing of the switch;

[0009] A second disconnecting switch is arranged on one side of the first disconnecting switch and connected with the mounting frame, and two ends thereof are connected with a second power supply side cable and a power receiving side cable respectively, the second disconnecting switch is provided with a second transmission mechanism, the second transmission mechanism is adapted to rotate around a power input end to control opening and closing of the switch, and the power input end of the second transmission mechanism is coaxially arranged with the power input end of the first transmission mechanism;

[0010] A connecting shaft is connected with the power input end of the first transmission mechanism and the power input end of the second transmission mechanism; and

[0011] A driving assembly is connected with the mounting frame, a power output end of the driving assembly is connected with the connecting shaft, and the driving assembly is used to drive the connecting shaft to rotate;

[0012] In the process of controlling the first disconnecting switch to close by driving the first transmission mechanism by the connecting shaft, the connecting shaft synchronously drives the second transmission mechanism to control the second disconnecting switch to open, and in the process of controlling the first disconnecting switch to open by driving the first transmission mechanism by the connecting shaft, the connecting shaft synchronously drives the second transmission mechanism to control the second disconnecting switch to close.

[0013] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, the first disconnecting switch comprises:

[0014] A first high-voltage isolation frame is connected with the mounting frame;

[0015] A first conductive seat is connected with the first high-voltage isolation frame and connected with a first power supply side cable;

[0016] A first static contact is arranged in space with the first conductive seat and connected with the first high-voltage isolation frame, and the first static contact is connected with a power receiving side cable;

[0017] A first conductive arm is rotatably connected with the first conductive seat at one end and provided with a first movable contact at the other end, and the first movable contact is adapted to contact and conduct electricity with the first static contact; and

[0018] The first transmission mechanism is arranged between the first conductive seat and the first static contact, and the first transmission mechanism comprises a first rocker and a first pull rod insulator, one end of the first rocker is rotatably connected with the first high-voltage isolation frame, the other end of the first rocker is rotatably connected with one end of the first pull rod insulator, and the other end of the first pull rod insulator is rotatably connected with a middle part of the first conductive arm.

[0019] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, the first high-voltage isolation frame comprises:

[0020] a first base connected with the mounting frame; and

[0021] two first insulators, arranged at two ends of the first base and connected with the first base; the first conducting seat and the first static contact are connected with the two first insulators respectively.

[0022] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, the second disconnecting switch comprises:

[0023] a second high-voltage isolation frame connected with the mounting frame;

[0024] a second conducting seat connected with the second high-voltage isolation frame and connected with the power receiving side cable;

[0025] a second static contact arranged at intervals with the second conducting seat and connected with the second high-voltage isolation frame, and the second static contact is connected with the second power supply side cable;

[0026] a second conducting arm, one end of which is rotatably connected with the second conducting seat, and the other end of which is a second moving contact, and the second moving contact is adapted to contact and conduct electricity with the second static contact; and

[0027] the second transmission mechanism is arranged between the second conducting seat and the second static contact, and the second transmission mechanism comprises a second rocker and a second pull rod insulator, one end of the second rocker is rotatably connected with the second high-voltage isolation frame, and the other end of the second rocker is rotatably connected with one end of the second pull rod insulator, and the other end of the second pull rod insulator is rotatably connected with the middle part of the second conducting arm.

[0028] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, the second high-voltage isolation frame comprises:

[0029] a second base connected with the mounting frame; and

[0030] two second insulators, arranged at two ends of the second base and connected with the second base; the second conducting seat and the second static contact are connected with the two second insulators respectively.

[0031] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, the first high-voltage isolation frame and the second high-voltage isolation frame are both arranged horizontally, the first conducting seat is arranged at the top of the first high-voltage isolation frame, and the first static contact is arranged at the bottom of the first high-voltage isolation frame; the second conducting seat is arranged at the bottom of the second high-voltage isolation frame, and the second static contact is arranged at the top of the second high-voltage isolation frame.

[0032] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, a conductive plate is further included, the conductive plate is connected with the first fixed contact and the second conductive seat, and is connected with a power-receiving side cable.

[0033] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, the power switching device further includes:

[0034] A first power supply terminal is connected with the mounting frame, one end of the first power supply terminal is electrically connected with the first conductive seat, and the other end of the first power supply terminal is adapted to be connected with a first power supply side cable.

[0035] A second power supply terminal is connected with the mounting frame, one end of the second power supply terminal is electrically connected with the second fixed contact, and the other end of the second power supply terminal is adapted to be connected with a second power supply side cable.

[0036] A power-receiving terminal is connected with the mounting frame, one end of the power-receiving terminal is connected with the conductive plate, and the other end of the power-receiving terminal is adapted to be connected with a power-receiving side cable.

[0037] In a possible implementation manner of the power switching device based on the high-voltage disconnecting switch, a compartment is further included, the compartment is fixedly arranged, and the mounting frame is arranged in the compartment and connected with the compartment.

[0038] The power switching device based on the high-voltage disconnecting switch has the following beneficial effects: compared with the prior art, the power switching device based on the high-voltage disconnecting switch is provided, the first disconnecting switch and the second disconnecting switch are arranged side by side, the first transmission mechanism and the second transmission mechanism are coaxial, and then only one connecting shaft can drive the first transmission mechanism and the second transmission mechanism to move simultaneously, the opening and closing of the first disconnecting switch and the second disconnecting switch are controlled, the switching between the first power supply side and the second power supply side is completed, and through the coaxial design, the structure of the linkage mechanism is simpler, and the reliability is relatively higher. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 A three-dimensional structure schematic view of the power switching device based on the high-voltage disconnecting switch is provided for the embodiment of the utility model;

[0040] Figure 2 A three-dimensional structure schematic view of the power switching device based on the high-voltage disconnecting switch after removing the compartment is provided for the embodiment of the utility model;

[0041] EXPLANATION OF REFERENCE NUMERALS:

[0042] 11, mounting frame; 12, compartment; 21, first base; 22, first insulator;

[0043] 23, first conductive seat; 24, first static contact; 25, first conductive arm; 26, first rocker;

[0044] 27, first pull rod insulator; 31, second base; 32, second insulator; 33, second conductive seat;

[0045] 34, second static contact; 35, second conductive arm; 36, second rocker; 37, second pull rod insulator;

[0046] 40, connecting shaft; 50, driving assembly; 60, conductive plate; 71, first power supply terminal;

[0047] 72, second power supply terminal; 73, power receiving terminal. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0049] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, and is by no means any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative efforts fall within the scope of protection of the present application.

[0050] It should be noted that the terms used herein are only used to describe the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that there is a feature, step, operation, device, component and / or combination thereof.

[0051] The foregoing description, for purposes of clarity, describes the present application in terms of its components, processes and operations. Such an expressly detailed description is not intended to limit the scope of the present application. Further, it is to be understood that the drawings and detailed description provided herein are not intended to limit the present application to the precise form disclosed. Various modifications and equivalents can be suggested in light of the above teaching, and it is thus understood that the scope of the present application is to be limited only by the claims that follow. The present application is not to be limited in scope by the specific embodiments described herein. Express language, such as "containing," "including," "including," "having," "including," "suspended," "or the like, indicates that the item listed is among the items or materials to be combined to form various embodiments of the application. Similar terms include "comprising," "including," "containing," "having," "including," "carrying," "suspending," or the like, and are inclusive or open-ended and do not exclude additional, unrecited elements or method steps. Unless otherwise specifically explained, the relative arrangements, numerical expressions, and values expressed in these embodiments do not limit the scope of the present application. At the same time, it should be understood that the size of each part shown in the drawings is not drawn in proportion. The technology, methods and equipment known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the specification under appropriate circumstances. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not required in subsequent drawings.

[0052] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; The orientation words "inner, outer" refer to the inner and outer of the contour of each part itself.

[0053] For the convenience of description, spatial relative terms such as "above", "above", "on the surface of", "upper" and the like can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the figure. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the drawing is inverted, the device described as "above" or "above" the other device or structure will be positioned "below" or "below" the other device or structure. Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways, and the spatial relative description used here is interpreted accordingly.

[0054] In addition, it should be noted that the use of the words "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore it cannot be understood as a limitation on the scope of protection of the present application.

[0055] Please see Figures 1 to 2The power switching device based on the high-voltage disconnecting switch is described as follows: the power switching device based on the high-voltage disconnecting switch comprises a mounting frame 11, a first disconnecting switch, a second disconnecting switch, a connecting shaft 40 and a driving assembly 50; the first disconnecting switch is connected with the mounting frame 11 and connected with a first power supply side cable and a power receiving side cable at two ends respectively; the first disconnecting switch is provided with a first transmission mechanism, the first transmission mechanism is adapted to rotate around a power input end and control opening and closing of the switch; the second disconnecting switch is arranged at one side of the first disconnecting switch and connected with the mounting frame 11, connected with a second power supply side cable and a power receiving side cable at two ends respectively, and provided with a second transmission mechanism, the second transmission mechanism is adapted to rotate around a power input end and control opening and closing of the switch; the power input end of the second transmission mechanism is coaxially arranged with the power input end of the first transmission mechanism; the connecting shaft 40 is connected with the power input end of the first transmission mechanism and the power input end of the second transmission mechanism; the driving assembly 50 is connected with the mounting frame 11 and connected with the connecting shaft 40 at a power output end and used for driving the connecting shaft 40 to rotate.

[0056] In the process of driving the first transmission mechanism by the connecting shaft 40 and controlling the first disconnecting switch to close, the connecting shaft 40 synchronously drives the second transmission mechanism and controls the second disconnecting switch to open; in the process of driving the first transmission mechanism by the connecting shaft 40 and controlling the first disconnecting switch to open, the connecting shaft 40 synchronously drives the second transmission mechanism and controls the second disconnecting switch to close.

[0057] Specifically, the driving assembly 50 is a driving device of an existing high-voltage disconnecting switch.

[0058] The power switching device based on the high-voltage disconnecting switch has the following beneficial effects: compared with the prior art, the power switching device based on the high-voltage disconnecting switch is provided, the first disconnecting switch and the second disconnecting switch are arranged side by side, the first transmission mechanism and the second transmission mechanism are coaxial, and then only one connecting shaft 40 can drive the first transmission mechanism and the second transmission mechanism to move simultaneously, control opening and closing of the first disconnecting switch and the second disconnecting switch, complete switching of the first power supply side and the second power supply side, and through the coaxial design, the structure of the linkage mechanism is simpler and the reliability is relatively higher.

[0059] In addition, power appliances in important fields such as railways and subways require that the devices used have been used in other fields for a period of time to prove safety and reliability. The first disconnecting switch, the second disconnecting switch, the transmission mechanism and the driving assembly 50 in the power switching device provided by the embodiment can be directly used in the existing, and therefore, can be directly used in important fields such as railways and subways.

[0060] For example, Figure 1 and Figure 2As shown in the specific embodiment of the power switching device based on the high-voltage isolating switch provided in the embodiment of the utility model, the first isolating switch comprises a first high-voltage isolating frame, a first conductive seat 23, a first static contact 24, a first conductive arm 25 and a first transmission mechanism, the first high-voltage isolating frame is connected with the mounting frame 11; the first conductive seat 23 is connected with the first high-voltage isolating frame and is connected with the first power supply side cable; the first static contact 24 is arranged at intervals with the first conductive seat 23 and is connected with the first high-voltage isolating frame, the first static contact 24 is connected with the power receiving side cable; one end of the first conductive arm 25 is rotatably connected with the first conductive seat 23, and the other end is a first moving contact, the first moving contact is adapted to contact and conductively cooperate with the first static contact 24; the first transmission mechanism is arranged between the first conductive seat 23 and the first static contact 24, the first transmission mechanism comprises a first rocker 26 and a first pull rod insulator 27, one end of the first rocker 26 is rotatably matched with the first high-voltage isolating frame, the other end is rotatably connected with one end of the first pull rod insulator 27, and the other end of the first pull rod insulator 27 is rotatably connected with the middle part of the first conductive arm 25.

[0061] Specifically, as shown in the specific embodiment of the power switching device based on the high-voltage isolating switch provided in the embodiment of the utility model, Figure 1 and Figure 2 As shown in the specific embodiment of the power switching device based on the high-voltage isolating switch provided in the embodiment of the utility model, the first high-voltage isolating frame comprises a first base 21 and two first insulators 22, the first base 21 is connected with the mounting frame 11; the two first insulators 22 are separately arranged at two ends of the first base 21 and are connected with the first base 21; the first conductive seat 23 and the first static contact 24 are respectively connected with the two first insulators 22.

[0062] As shown in the specific embodiment of the power switching device based on the high-voltage isolating switch provided in the embodiment of the utility model, Figure 1 and Figure 2 As shown in the specific embodiment of the power switching device based on the high-voltage isolating switch provided in the embodiment of the utility model, the second isolating switch comprises a second high-voltage isolating frame, a second conductive seat 33, a second static contact 34, a second conductive arm 35 and a second transmission mechanism, the second high-voltage isolating frame is connected with the mounting frame 11; the second conductive seat 33 is connected with the second high-voltage isolating frame and is connected with the power receiving side cable; the second static contact 34 is arranged at intervals with the second conductive seat 33 and is connected with the second high-voltage isolating frame, the second static contact 34 is connected with the second power supply side cable; one end of the second conductive arm 35 is rotatably connected with the second conductive seat 33, and the other end is a second moving contact, the second moving contact is adapted to contact and conductively cooperate with the second static contact 34; the second transmission mechanism is arranged between the second conductive seat 33 and the second static contact 34, the second transmission mechanism comprises a second rocker 36 and a second pull rod insulator 37, one end of the second rocker 36 is rotatably matched with the second high-voltage isolating frame, the other end is rotatably connected with one end of the second pull rod insulator 37, and the other end of the second pull rod insulator 37 is rotatably connected with the middle part of the second conductive arm 35.

[0063] Specifically, as shown in Figure 1 and Figure 2 in a specific embodiment of the power switching device based on the high-voltage disconnecting switch provided in the embodiment of the utility model, the second high-voltage isolation frame includes a second base 31 and two second insulators 32, the second base 31 is connected with the mounting frame 11, and the two second insulators 32 are separately arranged at the two ends of the second base 31 and are connected with the second base 31; a second conducting seat 33 and a second static contact 34 are respectively connected with the two second insulators 32.

[0064] As shown in Figure 1 and Figure 2 in a specific embodiment of the power switching device based on the high-voltage disconnecting switch provided in the embodiment of the utility model, the first high-voltage isolation frame and the second high-voltage isolation frame are both horizontally arranged, the first conducting seat 23 is arranged at the top of the first high-voltage isolation frame, and the first static contact 24 is arranged at the bottom of the first high-voltage isolation frame; the second conducting seat 33 is arranged at the bottom of the second high-voltage isolation frame, and the second static contact 34 is arranged at the top of the second high-voltage isolation frame. That is, the first disconnecting switch is reversely arranged relative to the second disconnecting switch, and the first transmission mechanism and the second transmission mechanism are simultaneously rotated by the driving of the connecting shaft 40, so that the state of the first disconnecting switch is opposite to the state of the second disconnecting switch, and the switching of the power supply is completed through the rotation of the connecting shaft 40.

[0065] As shown in Figure 1 and Figure 2 in a specific embodiment of the power switching device based on the high-voltage disconnecting switch provided in the embodiment of the utility model, a conducting plate 60 is further included, the conducting plate 60 is connected with the first static contact 24 and the second conducting seat 33 and is connected with the power-receiving side cable. Specifically, the conducting plate 60 is a copper plate.

[0066] As shown in Figure 1 and Figure 2 in a specific embodiment of the power switching device based on the high-voltage disconnecting switch provided in the embodiment of the utility model, a first power supply terminal 71, a second power supply terminal 72 and a power-receiving terminal 73 are further included, the first power supply terminal 71 is connected with the mounting frame 11, one end thereof is electrically connected with the first conducting seat 23, and the other end thereof is adapted to be connected with the first power supply side cable; the second power supply terminal 72 is connected with the mounting frame 11, one end thereof is electrically connected with the second static contact 34, and the other end thereof is adapted to be connected with the second power supply side cable; the power-receiving terminal 73 is connected with the mounting frame 11, one end thereof is connected with the conducting plate 60, and the other end thereof is adapted to be connected with the power-receiving side cable.

[0067] Specifically, the first power supply terminal 71 is connected with the first conducting seat 23 through a copper wire row, and the second power supply terminal 72 is connected with the second static contact 34 through a copper wire row.

[0068] As shown in Figure 1 andFigure 2 As shown in a specific embodiment of the power switching device based on the high-voltage isolating switch provided by the embodiment of the utility model, a compartment 12 is further included, which is fixedly arranged, and the mounting rack 11 is arranged in the compartment 12 and connected with the compartment 12.

[0069] Specifically, the compartment 12 is used for providing protection, and a door body is arranged on the side of the compartment 12, so that a person can pass through and enter the inside of the compartment 12.

[0070] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A power switching device based on a high-voltage disconnector, characterized in that The utility model relates to a kind of high-voltage switchgear, including: mounting frame; First disconnecting switch, connected with the mounting frame, two ends are connected with first power supply side cable and power receiving side cable respectively;The first disconnecting switch is equipped with first transmission mechanism, the first transmission mechanism is suitable for rotating around power input end, controls the opening and closing of switch; Second disconnecting switch, equipped in the side of the first disconnecting switch, connected with the mounting frame, two ends are connected with second power supply side cable and power receiving side cable respectively, the second disconnecting switch is equipped with second transmission mechanism, the second transmission mechanism is suitable for rotating around power input end, controls the opening and closing of switch;The power input end of the second transmission mechanism is coaxially arranged with the power input end of the first transmission mechanism; Connecting shaft, connected with the power input end of the first transmission mechanism and the power input end of the second transmission mechanism;And Drive assembly, connected with the mounting frame, power output end is connected with the connecting shaft, for driving the connecting shaft rotation; Wherein, the connecting shaft drives the first transmission mechanism, controls the process that first disconnecting switch is closed, the connecting shaft synchronously drives the second transmission mechanism, controls the second disconnecting switch is disconnected;The connecting shaft drives the first transmission mechanism, controls the process that first disconnecting switch is disconnected, the connecting shaft synchronously drives the second transmission mechanism, controls the second disconnecting switch is closed.

2. The high-voltage disconnector based power switching device according to claim 1, characterized in that The first disconnecting switch includes: First high-voltage isolation frame, connected with the mounting frame; First conducting seat, connected with the first high-voltage isolation frame, and connected with first power supply side cable; First static contact, is arranged with the first conducting seat interval, and is connected with the first high-voltage isolation frame, the first static contact is connected with power receiving side cable; First conducting arm, one end is rotatably connected with the first conducting seat, and the other end is first moving contact, the first moving contact is suitable for contact and electrically conductive cooperation with the first static contact;And The first transmission mechanism is arranged between the first conducting seat and the first static contact, the first transmission mechanism includes first rocker and first pull rod insulator, one end of the first rocker is rotatably connected with the first high-voltage isolation frame, the other end is rotatably connected with one end of the first pull rod insulator, the other end of the first pull rod insulator is rotatably connected with the middle part of the first conducting arm.

3. The high-voltage disconnector based power switching device according to claim 2, characterized in that The first high-voltage isolation frame includes: First base, connected with the mounting frame;And Two first insulators, are separately arranged in the two ends of the first base, and are connected with the first base;The first conducting seat and the first static contact are connected with two first insulators respectively.

4. The high-voltage disconnector based power switching device according to claim 2, characterized in that, The second disconnecting switch includes: Second high-voltage isolation frame, connected with the mounting frame; Second conducting seat, connected with the second high-voltage isolation frame, and connected with power receiving side cable; Second static contact, is arranged with the second conducting seat interval, and is connected with the second high-voltage isolation frame, the second static contact is connected with second power supply side cable; Second conducting arm, one end is rotatably connected with the second conducting seat, and the other end is second moving contact, the second moving contact is suitable for contact and electrically conductive cooperation with the second static contact;And The second transmission mechanism is arranged between the second conductive seat and the second static contact, and comprises a second rocker and a second pull rod insulator. One end of the second rocker is rotationally connected with the second high-voltage isolation frame, and the other end is rotationally connected with one end of the second pull rod insulator. The other end of the second pull rod insulator is rotationally connected with the middle part of the second conductive arm.

5. The high-voltage disconnector based power switching device according to claim 4, characterized in that, The second high-voltage isolation frame comprises: a second base connected with the mounting frame; and two second insulators arranged at two ends of the second base and connected with the second base; and the second conductive seat and the second static contact are respectively connected with the two second insulators.

6. The high-voltage disconnector based power switching device according to claim 4, characterized in that, The first high-voltage isolation frame and the second high-voltage isolation frame are arranged transversely. The first conductive seat is arranged at the top of the first high-voltage isolation frame, and the first static contact is arranged at the bottom of the first high-voltage isolation frame. The second conductive seat is arranged at the bottom of the second high-voltage isolation frame, and the second static contact is arranged at the top of the second high-voltage isolation frame.

7. The high-voltage disconnector based power switching device according to claim 6, characterized in that The conductive plate is connected with the first static contact and the second conductive seat, and is connected with the power receiving side cable.

8. The high-voltage disconnector based power switching device according to claim 7, characterized in that, Further comprising: a first power supply terminal connected with the mounting frame, one end of which is electrically connected with the first conductive seat, and the other end of which is adapted to be connected with the first power supply side cable; a second power supply terminal connected with the mounting frame, one end of which is electrically connected with the second static contact, and the other end of which is adapted to be connected with the second power supply side cable; and a power receiving terminal connected with the mounting frame, one end of which is connected with the conductive plate, and the other end of which is adapted to be connected with the power receiving side cable. Further comprising a compartment, wherein the mounting frame is arranged in the compartment and connected with the compartment.

9. A high-voltage disconnector based power switching device according to any of the claims 1-8, characterized in that, Further comprising a compartment, wherein the mounting frame is arranged in the compartment and connected with the compartment.

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