High-safety power grid knife switch device

Abstract

The invention belongs to the technical field of power grid knife switch equipment, and discloses a high-safety power grid knife switch device, which comprises a base, a first driving assembly and a second driving assembly, and is characterized in that the base is provided with a mounting plate, and the mounting plate is provided with a mounting hole; in actual operation, fasteners such as bolts can penetrate through the mounting holes to mount the base on equipment such as external transformation equipment, and mounting is simple and convenient. Two groups of knife switch assemblies are movably arranged on the base, each knife switch assembly comprises a connecting component and a rotating component, the connecting component is connected with a wire, the rotating components are rotationally arranged on the base, and the first driving assembly drives the two groups of rotating components to rotate; the second driving assembly drives the two groups of knife switch assemblies to move close to or away from each other. The high-safety power grid knife switch device can effectively avoid power on caused by wrong combination of the knife switch device due to misoperation of a starting switch of the knife switch, so that the operation safety of operators in a circuit maintenance process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of power grid knife switch equipment, and in particular to a high-safety power grid knife switch device. Background Art

[0002] Switch knife is a kind of power equipment automation switch commonly used in power grids, also known as switch knife, which is generally used for high voltage and low voltage switches. However, the existing power grid switch knife has the following problems: when the power grid switch knife is separated, due to the lack of effective safety separation structure, when the power grid switch knife is in the separated state, if the start switch is directly opened, it will cause the switch knife to be in the closed state again. During the circuit maintenance process, if the switch knife is mistakenly combined to cause power on, it will cause harm to the surrounding operators and cause safety accidents. Summary of the invention

[0003] The object of the present invention is to provide a high-safety power grid knife device, which can effectively avoid the misoperation of the knife starting switch causing the knife device to be incorrectly combined and cause power to be turned on, thereby ensuring the operating safety of operators during circuit maintenance.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] Provided is a high-safety power grid switch device, comprising a base, a first drive assembly and a second drive assembly, wherein two groups of switch assemblies are movably arranged on the base, wherein the switch assemblies comprise a connecting member and a rotating member, wherein the connecting member is connected to a wire, and the rotating member is rotatably arranged on the base, and when the two groups of rotating members are respectively rotated to a first position, the two groups of connecting members abut against each other;

[0006] The first driving assembly is disposed on the base, and the first driving assembly is respectively connected to the rotating components of the two groups of the knife assemblies in a transmission manner to drive the two groups of the rotating components to rotate;

[0007] The second driving assembly is arranged on the base, and the second driving assembly is respectively connected to the two groups of the knife assemblies in a transmission manner to drive the two groups of the knife assemblies to move closer to or away from each other.

[0008] In one embodiment, the first driving assembly includes a driving motor, a driving gear and a driven gear. The driving motor is drivingly connected to the driving gear. Two driven gears are provided. The two driven gears are respectively meshed with the driving gear, and the two groups of the knife assemblies are respectively fixed on the two driven gears.

[0009] In one embodiment, the rotating member includes an insulating rod, a plug-in block is provided at the bottom of the insulating rod, and a plug-in hole for plugging and matching with the plug-in block is provided on the driven gear;

[0010] The connecting member comprises a metal connecting plate, which is arranged on the insulating rod and connected to the conducting wire.

[0011] In one embodiment, a conductive cavity is provided in the insulating rod, and two conductive holes communicating with the conductive cavity are provided on the outer side wall of the insulating rod;

[0012] The connecting component also includes a metal sheet and an elastic metal ring. The metal sheet is arranged in the conductive cavity. The metal connecting plate passes through the outer wall of the insulating rod and is connected to the metal sheet. The elastic metal ring is respectively engaged with the two conductive holes and connected to the metal sheet. The elastic metal ring is connected to the wire.

[0013] In one of the embodiments, a hook is provided at one end of the metal connecting plate away from the insulating rod.

[0014] In one of the embodiments, a pressure sensor is provided on the hook.

[0015] In one embodiment, two supporting frames are slidably arranged on the base, and two groups of the knife assemblies are respectively arranged on the two supporting frames. Two second driving assemblies are provided, and the second driving assemblies include a first servo push rod. Two of the first servo push rods are fixed on both sides of the base, and the output shafts of the two first servo push rods are respectively connected to the two supporting frames to drive the two supporting frames to move relatively closer or farther.

[0016] In one embodiment, the high-safety power grid knife device also includes a lifting assembly arranged on the supporting frame, the lifting assembly includes a lifting slide rail, a sliding frame slidably connected to the lifting slide rail, and a second servo push rod, the second servo push rod is arranged on the lifting slide rail, the output shaft of the second servo push rod is connected to the sliding frame to drive the sliding frame to slide on the slide rail, the knife assembly is connected to the sliding frame, and when the knife assembly slides and rises to the second position along the lifting slide rail with the sliding frame, the knife assembly releases the transmission connection with the first driving assembly.

[0017] In one of the embodiments, distance sensors for detecting the position of the carrier are provided on both sides of the base, and the distance sensors are respectively connected to the first servo push rod and the second servo push rod signals.

[0018] In one of the embodiments, the high-security power grid knife switch device also includes a baffle, a slider is provided at the bottom of the baffle, a slide groove is provided on the base for the slider to slide, and an avoidance groove is provided corresponding to the position of the baffle corresponding to the knife switch assembly.

[0019] Beneficial effects of the present invention:

[0020] A high-safety electric grid switch device of the present invention is provided with two sets of switch blade assemblies movably arranged on a base. The movement of the two sets of switch blade assemblies causes the connecting members of the two sets of switch blade assemblies to abut against or separate from each other, so as to realize the operation of powering on or off. Specifically, when performing the power-on operation, the first drive assembly drives the two sets of rotating members to rotate, so that the two sets of switch blade assemblies rotate to the first position. At this time, the connecting members of the two sets of switch blade assemblies abut against each other and are connected to the wires connected to the two sets of connecting members, respectively, to complete the power-on operation. When performing the power-off operation, the first drive assembly drives the two sets of rotating members to rotate, so that the two sets of switch blade assemblies rotate away from the first position. At this time, the connecting members of the two sets of switch blade assemblies separate from each other, and the wires connected to the two sets of connecting members cannot be connected, respectively, to complete the power-off operation.

[0021] Furthermore, by setting a second drive assembly to drive the two sets of knife switch assemblies to move relatively close or away from each other, in the power-on operation, the second drive assembly drives the two sets of knife switch assemblies to move relatively close to each other so that the rotation trajectories of the two sets of connecting components intersect, so that the two sets of connecting components can abut against each other during the rotation process of the rotating components. In the power-off operation, the second drive assembly drives the two sets of knife switch assemblies to move relatively away from each other so that the rotation trajectories of the two sets of connecting components do not intersect, so that even if the first drive assembly is mistakenly turned on to drive the two sets of knife switch assemblies to rotate, the two sets of connecting components cannot abut against each other, thereby effectively avoiding the situation where the knife switch device is powered on due to the accidental touch of the switch, which is conducive to ensuring the safety of the operator during the circuit maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a high-security power grid switch device in one embodiment;

[0023] Figure 2 is a partially disassembled structural diagram of a high-security power grid switch device in one embodiment;

[0024] Figure 3 is a schematic diagram of a top view of a high-security power grid switch device in one embodiment;

[0025] Figure 4 is a schematic diagram of the side view of the high-security power grid switch device in one embodiment;

[0026] Figure 5is a bottom perspective structural diagram of a high-security power grid switch device in one embodiment;

[0027] Figure 6 is a schematic diagram of the connection structure between the knife assembly and the carrier frame in one embodiment;

[0028] Figure 7 is a partial structural cross-sectional view of a knife blade assembly in one embodiment;

[0029] Figure 8 is a schematic diagram of the structure of a hook and a pressure sensor in one embodiment;

[0030] Fig. 9 is a schematic diagram of the structure of a base from a bottom perspective in one embodiment;

[0031] Fig.10 Schematic diagram of the structure of a baffle in one of the embodiments.

[0032] In the figure:

[0033] 100, base; 110, mounting plate; 111, mounting hole; 120, carrier; 121, guide block; 130, guide groove; 140, slide groove; 141, bayonet; 150, cover plate; 200, knife assembly; 210, connecting member; 211, metal connecting plate; 212, metal sheet; 213, elastic metal ring; 214, hook; 215, pressure sensor; 220, rotating member; 221, insulating rod; 222, plug-in block ; 223, conductive cavity; 224, conductive hole; 300, wire; 400, first drive assembly; 410, drive motor; 420, drive gear; 430, driven gear; 510, first servo push rod; 600, lifting assembly; 610, lifting slide rail; 620, sliding frame; 630, second servo push rod; 640, ring; 700, distance sensor; 800, baffle; 810, slider; 811, cam; 820, avoidance groove. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] like Figures 1 to 10As shown, a high-safety power grid switch device of this embodiment includes a base 100, a first drive component 400 and a second drive component. A mounting plate 110 is provided on the base 100, and a mounting hole 111 is provided on the mounting plate 110. In actual operation, the base 100 can be installed on an external transformer device or other equipment by passing fasteners such as bolts through the mounting hole 111, and the installation is simple and convenient. Two groups of knife blade assemblies 200 are movably arranged on the base 100, and the knife blade assemblies 200 include a connecting member 210 and a rotating member 220. The connecting member 210 is connected to the wire 300, and the rotating member 220 is rotatably arranged on the base 100. When the two groups of rotating members 220 are respectively rotated to the first position, the two groups of connecting members 210 abut against each other; the first driving assembly 400 is arranged on the base 100, and the first driving assembly 400 is respectively connected to the rotating members 220 of the two groups of knife blade assemblies 200 for driving the two groups of rotating members 220 to rotate; the second driving assembly is arranged on the base 100, and the second driving assembly is respectively connected to the two groups of knife blade assemblies 200 for driving the two groups of knife blade assemblies 200 to move relatively close to or away from each other.

[0039] In this embodiment, two groups of knife assemblies 200 are movably arranged on the base 100, and the connection members 210 of the two groups of knife assemblies 200 are mutually abutted or separated by the movement of the two groups of knife assemblies 200, so as to realize the operation of power on or power off. Specifically, when performing the power on operation, the first drive assembly 400 drives the two groups of rotating members 220 to rotate, so that the two groups of knife assemblies 200 rotate to the first position. At this time, the connection members 210 of the two groups of knife assemblies 200 abut against each other and are respectively connected to the wires 300 connected to the two groups of connecting members 210, and the power on operation is completed. When performing the power off operation, the first drive assembly 400 drives the two groups of rotating members 220 to rotate, so that the two groups of knife assemblies 200 rotate away from the first position. At this time, the connection members 210 of the two groups of knife assemblies 200 are separated from each other, and the wires 300 respectively connected to the two groups of connecting members 210 cannot be connected, and the power off operation is completed.

[0040] Furthermore, by arranging a second drive assembly to drive the two groups of knife assemblies 200 to move relatively close to or away from each other, in the power-on operation, the second drive assembly drives the two groups of knife assemblies 200 to move relatively close to each other so that the rotation trajectories of the two groups of connecting members 210 intersect, so that the two groups of connecting members can abut against each other during the rotation process with the rotating member 220. In the power-off operation, the second drive assembly drives the two groups of knife assemblies 200 to move relatively away from each other so that the rotation trajectories of the two groups of connecting members 210 do not intersect, so that even if the first drive assembly 400 is mistakenly turned on to drive the two groups of knife assemblies 200 to rotate, the two groups of connecting members 210 will never abut against each other, thereby effectively avoiding the situation where the knife device is powered on due to the accidental touch of the switch, which is conducive to ensuring the safety of the operator during the circuit maintenance process.

[0041] In one embodiment, the first driving assembly 400 includes a driving motor 410, a driving gear 420 and a driven gear 430. The driving motor 410 is in transmission connection with the driving gear 420. Two driven gears 430 are provided. The two driven gears 430 are respectively meshed with the driving gear 420, and the two groups of knife assemblies 200 are respectively fixed on the two driven gears 430. Specifically, the base 100 is also provided with a cover plate 150 for mounting the driving motor 410. The driving motor 410 is mounted on the cover plate 150. The output shaft of the driving motor 410 is in transmission connection with the driving gear 420. The two driven gears 430 are driven to rotate synchronously through the driving gear 420, so as to realize the rotation movement of the two groups of knife assemblies 200 driven by one driving motor 410, so as to control the operation of the two groups of knife assemblies 200 to abut and power on or separate and power off.

[0042] In one embodiment, the rotating member 220 includes an insulating rod 221, a plug-in block 222 is provided at the bottom of the insulating rod 221, and a plug-in hole (not shown) plugged with the plug-in block 222 is provided on the driven gear 430. The insulating rod 221 is fixed to the driven gear 430 by plugging, and rotates with the rotation of the driven gear 430. The connecting member 210 includes a metal connecting plate 211, which is arranged on the insulating rod 221 and connected to the wire 300. When the two sets of knife switch assemblies 200 are driven by the first driving assembly 400 to rotate to the first position, the metal connecting plates 211 of the two sets of knife switch assemblies 200 abut against each other, so that the wires 300 respectively connected to the two metal connecting plates 211 are connected, and the power is turned on.

[0043] In one embodiment, if Figure 7As shown, a conductive cavity 223 is provided in the insulating rod 221, and two conductive holes 224 communicating with the conductive cavity 223 are provided on the outer wall of the insulating rod 221. The connecting member 210 also includes a metal sheet 212 and an elastic metal ring 213. The metal sheet 212 is provided in the conductive cavity 223. The metal connecting plate 211 penetrates the outer wall of the insulating rod 221 and is connected to the metal sheet 212. The elastic metal ring 213 is respectively engaged with the two conductive holes 224 and connected to the metal sheet 212. The elastic metal ring 213 is connected to the wire 300. The elastic metal ring 213 with an elastic structure can be easily disassembled and assembled with the conductive holes 224. By providing the conductive cavity 223 in the insulating rod 221, the exposed area of ​​the connecting member 210 is reduced, which is conducive to improving the safety of the overall device.

[0044] In one embodiment, a hook 214 is provided at one end of the metal connecting plate 211 away from the insulating rod 221. During the power-on operation, the two hooks 214 are mutually fastened and limited to ensure the stability of the connection between the two metal connecting plates 211, and avoid the situation where the two metal connecting plates 211 are separated due to poor contact or erroneous operation of the two metal connecting plates 211, resulting in power failure. Specifically, during the power-on operation, the first drive component 400 drives the two sets of knife assemblies 200 to rotate until the two metal connecting plates 211 abut against each other, and then the second drive component drives the two knife assemblies 200 to move away from each other, so that the two hooks 214 are mutually fastened and limited. At this time, the two sets of knife assemblies 200 are relatively fixedly connected, and the two metal connecting plates 211 always keep abutting against each other, thereby ensuring that the circuit is always in a power-on state and ensuring the normal power-on operation of the circuit.

[0045] In one embodiment, if Figure 8 As shown, a pressure sensor 215 is provided on the hook 214. When the two metal connecting plates 211 are abutted, the two hooks 214 are respectively abutted against the metal connecting plates 211. The pressure sensor 215 is set on one end where the hook 214 abuts against the metal connecting plate 211. The pressure sensor 215 detects whether the hook 214 has completed the abutment with the metal connecting plate 211, so as to perform the subsequent tightening operation of the hook 214, and further ensure that the two metal connecting plates 211 are always in abutment, thereby ensuring that the circuit is always in a power-on state and ensuring the normal power-on operation of the circuit.

[0046] In one embodiment, two carriers 120 are slidably arranged on the base 100, the carriers 120 are provided with guide blocks 121, the base 100 is provided with guide grooves 130, and the guide blocks 121 are slidably arranged in the guide grooves 130 to realize the sliding of the carriers 120 on the base 100. Two groups of knife assemblies 200 are respectively arranged on the two carriers 120, and two second drive assemblies are provided, and the second drive assembly includes a first servo push rod 510, and the two first servo push rods 510 are fixed on both sides of the base 100, and the output shafts of the two first servo push rods 510 are respectively connected to the two carriers 120 to drive the two carriers 120 to move relatively close to or away from each other.

[0047] Specifically, the two driven gears 430 are respectively arranged on the two carriers 120. When the power is cut off, the two metal connecting plates 211 are first driven to separate by the driving motor 410, and then the two carriers 120 are pushed to move relatively away by the first servo push rod 510. At this time, the driven gears 430 respectively arranged on the two carriers 120 are also relatively away and disengaged from the meshing cooperation with the driving gear 420, that is, the knife switch assembly 200 is in contact with the transmission connection with the first driving assembly 400, which can effectively avoid the erroneous operation of the switch of the first driving assembly 400, resulting in the erroneous merging of the two sets of knife switch assemblies 200 and causing power on, thereby ensuring the safety of the operator during the circuit maintenance process.

[0048] In one embodiment, the high-safety power grid knife device also includes a lifting assembly 600 arranged on the carrier frame 120, the lifting assembly 600 includes a lifting rail 610, a sliding frame 620 slidably connected to the lifting rail 610, and a second servo push rod 630, the second servo push rod 630 is arranged on the lifting rail 610, the output shaft of the second servo push rod 630 is connected to the sliding frame 620 to drive the sliding frame 620 to slide on the slide rail, the knife assembly 200 is connected to the sliding frame 620, and when the knife assembly 200 slides and rises to the second position along the lifting rail 610 with the sliding frame 620, the knife assembly 200 and the first drive assembly 400 are released from the transmission connection.

[0049] Specifically, the sliding frame 620 is connected to the insulating rod 221, and a ring 640 is provided on the sliding frame 620 for rotating the insulating rod 221. In the power-off operation, the two connecting members 210 are first driven to separate by the first drive assembly 400, and then the two groups of knife switch assemblies 200 are driven to move relatively away from each other to a position where the two connecting members 210 cannot abut against each other by the first servo push rod 510, and then the sliding frame 620 is pushed up by the second servo push rod 630, and the insulating rod 221 rises with the sliding frame 620, and the plug-in block 222 at the bottom of the insulating rod 221 is separated from the plug-in hole, and the insulating rod 221 is disconnected from the driven gear 430, that is, the knife switch assembly 200 and the first drive assembly 400 are released from the transmission connection, thereby further ensuring that the two groups of knife switch assemblies 200 are not mistakenly merged and powered on due to misoperation of the switch of the first drive assembly 400, thereby ensuring the operating safety of operators during circuit maintenance.

[0050] In one embodiment, distance sensors 700 for detecting the position of the carrier 120 are provided on both sides of the base 100, and the distance sensors 700 are respectively connected to the first servo push rod 510 and the second servo push rod 630 by signals. Specifically, in the process of the first servo push rod 510 driving the carrier 120 to move relatively close or away, the position of the carrier 120 is detected by the distance sensor 700, and the position information of the carrier 120 is fed back to the control module (not shown), and the control module sends a signal according to the position information of the carrier 120 to control the start and stop of the first servo push rod 510 and the second servo push rod 630. In this way, the first servo push rod 510 and the second servo push rod 630 are automatically operated, and the connection and separation of the knife assembly 200 and the first driving assembly 400 are automatically completed.

[0051] In actual operation, the position of the carrier 120 can be preset with a power-on position and a power-off position. When the power-on operation is performed, the distance sensor 700 detects the position of the carrier 120. If the position of the carrier 120 is not in the power-on position, the first servo push rod 510 starts and drives the carrier 120 to move to the power-on position. At this time, the driven gear 430 on the carrier 120 can be engaged with the driving gear 420, and when the driven gear 430 drives the knife assembly 200 to rotate to the first position, the connecting component 210 of the two sets of knife assemblies 200 can complete the abutment and power on. When the power-off operation is performed, the distance sensor 700 detects the position of the carrier frame 120. If the position of the carrier frame 120 is not in the power-off position, the first servo push rod 510 starts and drives the carrier frame 120 to move to the power-off position. At this time, the driven gear 430 on the carrier frame 120 is separated from the driving gear 420, and the second servo push rod 630 is started again to drive the gate knife assembly 200 to separate from the driven gear 430, completing the complete separation of the gate knife assembly 200 and the first drive assembly 400, avoiding the wrong start of the first drive assembly 400 causing power to be on, and improving operation safety.

[0052] In one embodiment, the high-security power grid switch device further includes a baffle 800, which is disposed above the base 100. The base 100 and the baffle 800 provide a certain degree of closed working environment for the first drive assembly 400 and the second drive assembly, which is conducive to reducing the interference of external factors on the first drive assembly 400 and the second drive assembly, and ensuring the normal operation of the first drive assembly 400 and the second drive assembly. Specifically, a slider 810 is provided at the bottom of the baffle 800, and a slide groove 140 for the slider 810 to slide is provided on the base 100. The first drive assembly 400 and the second drive assembly are exposed by sliding the baffle 800, so as to perform disassembly, assembly or maintenance operations on the first drive assembly 400 and the second drive assembly. Furthermore, a latching protrusion 811 is provided on both sides of the slider 810, and a latching slot 141 is provided at a position corresponding to the latching protrusion 811 in the slide groove 140 to limit the movement of the slider 810 and the slide groove 140 in other directions from their sliding direction, so that the slider 810 can only slide along the length direction of the slide groove 140, thereby ensuring the stability of the connection between the slider 810 and the slide groove 140.

[0053] Furthermore, an avoidance groove 820 is provided at the position of the baffle 800 corresponding to the gate knife assembly 200 to prevent the baffle 800 from interfering with and colliding with the gate knife assembly 200 during the sliding process on the base 100, thereby ensuring that the baffle 800 slides smoothly on the base 100.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A high-security power grid switch device, characterized in that: include: A base (100), wherein two groups of knife blade assemblies (200) are movably arranged on the base (100), wherein the knife blade assemblies (200) comprise a connecting member (210) and a rotating member (220), wherein the connecting member (210) is connected to a wire (300), and the rotating member (220) is rotatably arranged on the base (100), and when the two groups of rotating members (220) are respectively rotated to a first position, the two groups of connecting members (210) abut against each other; A first driving assembly (400), the first driving assembly (400) being arranged on the base (100), the first driving assembly (400) being respectively connected in transmission with the rotating components (220) of the two groups of the knife assemblies (200) to drive the two groups of the rotating components (220) to rotate; A second driving assembly, wherein the second driving assembly is arranged on the base (100), and the second driving assembly is respectively connected in driving connection with the two groups of the knife assemblies (200) to drive the two groups of the knife assemblies (200) to move relatively closer or farther.

2. The high-security power grid switch device according to claim 1, characterized in that: The first driving assembly (400) comprises a driving motor (410), a driving gear (420) and a driven gear (430); the driving motor (410) is drivingly connected to the driving gear (420); two driven gears (430) are provided; the two driven gears (430) are respectively meshed with the driving gear (420); and the two groups of the knife assemblies (200) are respectively fixed on the two driven gears (430).

3. The high-security power grid switch device according to claim 2, characterized in that: The rotating member (220) comprises an insulating rod (221), a plug-in block (222) is provided at the bottom of the insulating rod (221), and a plug-in hole for plugging and matching with the plug-in block (222) is provided on the driven gear (430); The connecting member (210) comprises a metal connecting plate (211), wherein the metal connecting plate (211) is disposed on the insulating rod (221), and the metal connecting plate (211) is connected to the conducting wire (300).

4. The high-security power grid switch device according to claim 3 is characterized in that: A conductive cavity (223) is provided in the insulating rod (221), and two conductive holes (224) communicating with the conductive cavity (223) are provided on the outer side wall of the insulating rod (221); The connecting component (210) further comprises a metal sheet (212) and an elastic metal ring (213); the metal sheet (212) is arranged in the conductive cavity (223); the metal connecting plate (211) penetrates the outer wall of the insulating rod (221) and is connected to the metal sheet (212); the elastic metal ring (213) is respectively engaged with the two conductive holes (224) and connected to the metal sheet (212); and the elastic metal ring (213) is connected to the conductive wire (300).

5. The high-security power grid switch device according to claim 3 or 4, characterized in that: A hook (214) is provided at one end of the metal connecting plate (211) away from the insulating rod (221).

6. The high-security power grid switch device according to claim 5, characterized in that: The hook (214) is provided with a pressure sensor (215).

7. The high-security power grid switch device according to any one of claims 1 to 4, characterized in that: Two supporting frames (120) are slidably arranged on the base (100), and the two groups of the knife assemblies (200) are respectively arranged on the two supporting frames (120). Two second driving assemblies are arranged, and the second driving assemblies include first servo push rods (510). The two first servo push rods (510) are fixed on both sides of the base (100), and the output shafts of the two first servo push rods (510) are respectively connected to the two supporting frames (120) in a transmission manner to drive the two supporting frames (120) to move relatively close to or away from each other.

8. The high-security power grid switch device according to claim 7, characterized in that: It also includes a lifting assembly (600) arranged on the carrier frame (120), the lifting assembly (600) includes a lifting rail (610), a sliding frame (620) slidably connected to the lifting rail (610), and a second servo push rod (630), the second servo push rod (630) is arranged on the lifting rail (610), the output shaft of the second servo push rod (630) is connected to the sliding frame (620) to drive the sliding frame (620) to slide on the sliding rail, the gate knife assembly (200) is connected to the sliding frame (620), and when the gate knife assembly (200) slides and rises to the second position along the lifting rail (610) with the sliding frame (620), the gate knife assembly (200) and the first driving assembly (400) are released from the transmission connection.

9. The high-security power grid switch device according to claim 8, characterized in that: Distance sensors (700) for detecting the position of the carrier (120) are provided on both sides of the base (100), and the distance sensors (700) are respectively connected to the first servo push rod (510) and the second servo push rod (630) by signals.

10. The high-security power grid switch device according to any one of claims 1 to 4, characterized in that: It also includes a baffle (800), a slider (810) is provided at the bottom of the baffle (800), a slide groove (140) for the slider (810) to slide is provided on the base (100), and an avoidance groove (820) is provided at a position of the baffle (800) corresponding to the gate blade assembly (200).

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