Bidirectional energy storage arc extinction switch suitable for vertically-arranged overhead cable

Abstract

The utility model relates to the technical field of power switches, in particular to a bidirectional energy storage arc extinction switch suitable for vertically arranged overhead cables, which comprises a switch main body and an arc extinction assembly, the switch main body is provided with an energy storage handle, the energy storage handle is provided with an energy storage cavity, the energy storage handle is provided with a hollow joint at the end part of the energy storage cavity, one end of the joint is communicated with the energy storage cavity, and the other end of the joint is communicated with the arc extinction assembly. The other end of the joint is provided with a conductive wire hanging hook piece; the energy storage handle is sleeved with the insulating wire hanging hook piece; the extension direction of the conductive wire hanging hook piece is the same as the extension direction of the insulating wire hanging hook piece, and is perpendicular to the central axis of the energy storage handle; the arc extinguishing assembly is arranged in the energy storage cavity so as to change the air pressure in the energy storage cavity. The arc extinguishing switch is hung in the overhead conductor through the conductive wire hanging hook piece and the insulating wire hanging hook piece, so that the arc extinguishing switch can be in a parallel state with the overhead conductor after being hung, the safety distance between the overhead conductors is prevented from being influenced, and the arc extinguishing switch is suitable for a scene in which a vertically arranged overhead cable arrangement mode is adopted in the south.

Description

Technical Field

[0001] The utility model relates to the technical field of power switches, in particular to a bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables. Background Art

[0002] Live working is an important means to ensure the safe operation of the power grid. Live working on distribution networks involves removing and assembling the tension lead wires or branch line joints of unloaded overhead lines, so that some lines or equipment can be taken out of operation for maintenance. The proportion of disconnection and connection of unloaded overhead lines accounts for more than 80% of the total number of live working projects on the entire distribution network. However, the current bypass operation requires carrying a large number of heavy equipment to the site, and the operation cycle is long and the efficiency is low.

[0003] During the live disconnection of 10kV unloaded cable leads and cable terminals, closing and disconnecting unloaded cable lines are equivalent to the opening and closing operations of capacitor banks, which may generate opening and closing overvoltages and overcurrents. As the cable length and cross-sectional area increase, the oscillation period of overvoltage and overcurrent becomes longer, the energy flowing through the switching switch becomes higher, and the larger capacitive current is prone to cause reignition between the switch contacts. When the capacitive current increases to a certain extent as the cable length increases, an arc extinguishing device can be used to disconnect the unloaded cable line. Therefore, during the operation, arc extinguishing methods and arc extinguishing technologies are very important technical links in cable non-stop operation.

[0004] With the large-scale expansion of cities and the widespread use of power cables, there are more and more overhead lines, and the requirements for arc extinguishing methods and arc extinguishing equipment for live distribution network operations are also higher. The existing arc extinguishing devices are generally suitable for the "triangular" and "parallel" arrangement of the State Grid's overhead cables. If they are used in areas where there are many "one-column" arrangements of overhead cables in the Southern Power Grid, the safe distance between the line phases will be reduced, and major safety problems such as double-phase contact are very likely to occur. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to propose a bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables.

[0006] To achieve this purpose, the utility model adopts the following technical solution: a bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables, comprising:

[0007] A switch body, wherein the switch body is provided with an energy storage handle, the energy storage handle is provided with an energy storage cavity, the energy storage handle is provided with a hollow joint at the end of the energy storage cavity, one end of the joint is connected to the energy storage cavity, and the other end of the joint is provided with a conductive wire hook; the energy storage handle is sleeved with an insulating wire hook; the extension direction of the conductive wire hook is the same as the extension direction of the insulating wire hook, and is perpendicular to the central axis of the energy storage handle;

[0008] An arc extinguishing component is arranged in the energy storage cavity to change the air pressure in the energy storage cavity.

[0009] Furthermore, the connector includes a hollow first connecting part and a second connecting part, the first connecting part and the second connecting part are connected in an L-shape, one end of the first connecting part is sleeved on the end of the energy storage handle, the other end of the first connecting part is connected to one end of the second connecting part, and the other end of the second connecting part is connected to the conductive hanging wire hook.

[0010] Furthermore, a clamping sleeve is disposed on the outer sleeve of the second connecting portion, and the clamping sleeve is threadably matched with an outer wall of the second connecting portion.

[0011] Furthermore, the arc extinguishing assembly includes a closing force storage spring, an opening force storage spring, a closing push rod and an opening push rod;

[0012] The end of the opening push rod is provided with an abutment push plate, and the middle of the opening push rod is provided with an abutment boss;

[0013] The end of the closing push rod is provided with a compression end head, and the compression end head is relatively slidably sleeved on the opening push rod;

[0014] The closing force storage spring is sleeved on the opening push rod, one end of the closing force storage spring abuts against the compression end, and the other end of the closing force storage spring abuts against the abutting boss;

[0015] One end of the opening brake force storage spring abuts against the end wall of the energy storage cavity, and the other end of the opening brake force storage spring abuts against the abutting push plate.

[0016] Furthermore, the switch body further comprises a shell, which is arranged at an end of the energy storage handle away from the joint, and an end of the closing push rod away from the opening spring and an end of the opening push rod away from the opening spring respectively pass through the shell;

[0017] The closing push rod is provided with a closing slot, and the opening push rod is provided with an opening slot;

[0018] A closing electric push rod and an opening electric push rod are arranged in the shell, the telescopic end of the closing electric push rod is connected with a closing fixing pin matched with the closing slot, and the telescopic end of the opening electric push rod is connected with an opening fixing pin matched with the opening slot.

[0019] Furthermore, the telescopic end of the closing electric push rod is fixedly sleeved with a closing collar, the closing collar is connected to a closing connection platform through a support, and the closing fixing pin is arranged on a side wall of the closing connection platform;

[0020] The telescopic end of the opening brake electric push rod is fixedly sleeved with an opening brake collar, the opening brake collar is connected to an opening brake connecting platform through a support, and the opening brake fixing pin is arranged on the side wall of the opening brake connecting platform.

[0021] Furthermore, it also includes a closing emergency pull rope and an opening emergency pull rope;

[0022] The closing connection platform is connected to one end of the closing emergency pull rope, and the other end of the closing emergency pull rope is connected to the closing pull ring after passing through the housing;

[0023] The switch-off connection platform is connected to one end of a switch-off emergency pull rope, and the other end of the switch-off emergency pull rope is connected to a switch-off pull ring after passing through the housing.

[0024] Furthermore, it also includes a flexible hanging overhead wire, one end of which is provided with a quick-connect plug, and the other end of which is provided with a drainage clamp;

[0025] A quick-connect socket electrically connected to the quick-connect plug is provided at the bottom of the housing.

[0026] The technical solution provided by the utility model may have the following beneficial effects:

[0027] The utility model provides a bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables. The switch is hung in the overhead wire by means of a conductive hanging hook and an insulating hanging hook, so that the arc extinguishing switch can be in parallel with the overhead wire after being hung, thereby avoiding affecting the safety distance between the overhead wires. The utility model is suitable for scenarios in the south where vertical overhead cable arrangements are adopted.

[0028] In addition, the bidirectional energy storage arc extinguishing switch provided by the utility model uses two force storage springs as the action energy storage mechanism for the switch opening and closing, that is, bidirectional energy storage. Before hanging, only one manual energy storage is required on the ground, and the arc extinguishing switch can be remotely controlled to open and close, and the product has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the cross-section structure of an embodiment of the utility model;

[0031] Figure 3 It is a structural schematic diagram of an arc extinguishing assembly of an embodiment of the utility model;

[0032] Figure 4 It is a schematic structural diagram of an opening electric push rod and a closing electric push rod according to an embodiment of the utility model;

[0033] Among them: 100-switch body, 110-energy storage handle, 111-energy storage chamber, 112-air hole, 120-connector, 121-first connecting part, 122-second connecting part, 130-conductive hanging hook, 140-insulating hanging hook, 150-clamping sleeve, 160-housing, 170-closing electric push rod, 171-closing fixing pin, 172-closing sleeve, 173-closing connection platform, 180-opening electric push rod, 181-opening fixing pin, 182-opening sleeve, 18 3-disconnection connection platform, 200-arc extinguishing assembly, 210-closing storage spring, 220-disconnection storage spring, 230-closing push rod, 231-compression terminal, 232-closing slot, 240-disconnection push rod, 241-abutment push plate, 242-abutment boss, 243-disconnection slot, 250-closing emergency pull rope, 251-closing pull ring, 260-disconnection emergency pull rope, 261-disconnection pull ring, 300-flexible hanging overhead wire, 310-quick-connect plug, 320-drainage wire clamp. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Combine the following Figure 1 to Figure 2 , describing a bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to an embodiment of the utility model, comprising

[0038] A switch body 100, wherein the switch body 100 is provided with an energy storage handle 110, wherein the energy storage handle 110 is provided with an energy storage cavity 111, wherein the energy storage handle 110 is provided with a hollow joint 120 at the end of the energy storage cavity 111, wherein one end of the joint 120 is connected to the energy storage cavity 111, and the other end of the joint 120 is provided with a conductive wire hook 130; the energy storage handle 110 is sleeved with an insulating wire hook 140; the extension direction of the conductive wire hook 130 is the same as the extension direction of the insulating wire hook 140, and is perpendicular to the central axis of the energy storage handle 110;

[0039] The arc extinguishing component 200 is disposed in the energy storage chamber 111 to change the air pressure in the energy storage chamber 111 .

[0040] Specifically, the conductive wire hook 130 is made of a conductive material, and the insulating wire hook 140 is made of an insulating material. When the switch body 100 is hung in the overhead wire through the conductive wire hook 130 and the insulating wire hook 140, the arc is introduced from the conductive wire hook 130 into the inner cavity of the joint 120, and then the arc extinguishing assembly 200 changes the air pressure of the energy storage cavity 111, thereby generating airflow to extinguish the arc.

[0041] More specifically, if Figure 2 As shown, an air hole 112 is provided on one side end wall of the energy storage handle 110 where the connector 120 is arranged, so that the energy storage cavity 111 can be connected with the inner cavity of the connector 120, so that when the arc extinguishing assembly 200 changes the air pressure of the energy storage cavity 111, air flow can be generated to flow into the connector 120 to eliminate the arc.

[0042] The utility model provides a bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables. The switch is hung in the overhead wire through a conductive wire hook 130 and an insulating wire hook 140, so that the arc extinguishing switch can be in parallel with the overhead wire after being hung, thereby avoiding affecting the safety distance between the overhead wires. The utility model is suitable for scenarios in the south where vertical overhead cables are arranged.

[0043] Furthermore, the connector 120 includes a hollow first connecting part 121 and a second connecting part 122, the first connecting part 121 and the second connecting part 122 are connected in an L-shape, one end of the first connecting part 121 is sleeved on the end of the energy storage handle 110, the other end of the first connecting part 121 is connected to one end of the second connecting part 122, and the other end of the second connecting part 122 is connected to the conductive hanging wire hook 130.

[0044] In this way, the conductive wire hook 130 is connected through the L-shaped joint 120, so that the conductive wire hook 130 is vertically arranged on the energy storage handle 110. More specifically, as Figure 1 As shown, the insulating wire hook 140 includes a hook portion (not marked in the figure) and a support seat (not marked in the figure), the support seat is sleeved on the energy storage handle 110, and the hook portion is connected to the top of the support seat.

[0045] Preferably, the second connection part 122 is provided with a clamping sleeve 150, and the clamping sleeve 150 is threadedly matched with the outer wall of the second connection part 122. In this embodiment, after the conductive wire hook 130 is hooked on the overhead wire, the clamping sleeve 150 is rotated so that the clamping sleeve 150 rises along the outer wall thread, so that the top of the clamping sleeve 150 will abut against the overhead wire upward to clamp the overhead wire. The clamping sleeve 150 is rotated so that the clamping sleeve 150 descends along the outer wall thread, so that the top of the clamping sleeve 150 will leave the overhead wire downward to loosen the overhead wire. The clamping sleeve 150 can be rotated to clamp and loosen the overhead wire, so that the switch body 100 can be stably hung on the overhead wire.

[0046] As an optional embodiment, Figure 2 As shown, the arc extinguishing assembly 200 includes a closing force storage spring 210, an opening force storage spring 220, a closing push rod 230 and an opening push rod 240; the end of the opening push rod 240 is provided with an abutting push plate 241, and the middle of the opening push rod 240 is provided with an abutting boss 242; the end of the closing push rod 230 is provided with a compression end head 231, and the compression end head 231 is relatively slidably sleeved on the opening push rod 240; the closing force storage spring 210 is sleeved on the opening push rod 240, one end of the closing force storage spring 210 abuts against the compression end head 231, and the other end of the closing force storage spring 210 abuts against the abutting boss 242; one end of the opening force storage spring 220 abuts against the end wall of the energy storage cavity 111, and the other end of the opening force storage spring 220 abuts against the abutting push plate 241.

[0047] Specifically, before use, the opening push rod 240 is pushed toward the direction close to the joint 120, so that the opening force storage spring 220 is compressed and stored, and then the opening push rod 240 is locked. Then the closing push rod 230 is pulled out in the direction away from the joint 120, so that the compression end 231 approaches the abutment boss 242, thereby compressing the closing force storage spring 210, and then the opening push rod 240 is locked, and the arc extinguishing switch is in the disconnected state. In this way, the closing force storage spring 210 and the opening force storage spring 220 are both in a compressed state, realizing bidirectional energy storage. When the closing push rod 230 is unlocked, the elastic force of the closing force storage spring 210 is released, so that the compression end 231 moves toward the direction close to the joint 120, changes the air pressure in the energy storage chamber 111, generates airflow to the inner cavity of the joint 120, and extinguishes the arc in the joint 120. When the opening push rod 240 is unlocked, the elastic force of the opening force storage spring 220 is released, causing the abutting push plate 241 to move away from the connector 120, changing the air pressure in the energy storage chamber 111, generating airflow in the inner cavity of the connector 120 and eliminating the arc in the connector 120.

[0048] The bidirectional energy storage arc extinguishing switch provided by the utility model uses two force storage springs as the action energy storage mechanism for the switch opening and closing, that is, bidirectional energy storage. Before hanging, it only needs to complete manual energy storage once on the ground, and then the arc extinguishing switch can be remotely controlled to perform opening and closing actions, and the product has high applicability.

[0049] Furthermore, the switch body 100 also includes a shell 160, which is arranged at the end of the energy storage handle 110 away from the joint 120, and the end of the closing push rod 230 away from the opening spring and the end of the opening push rod 240 away from the opening spring respectively pass through the shell 160; the closing push rod 230 is provided with a closing slot 232, and the opening push rod 240 is provided with an opening slot 243; a closing electric push rod 170 and an opening electric push rod 180 are provided in the shell 160, and the telescopic end of the closing electric push rod 170 is connected to a closing fixing pin 171 that cooperates with the closing slot 232, and the telescopic end of the opening electric push rod 180 is connected to an opening fixing pin 181 that cooperates with the opening slot 243.

[0050] Specifically, when the opening push rod 240 is pushed forward for a certain distance, the opening slot 243 on the opening push rod 240 corresponds to the opening fixing pin 181. At this time, the opening electric push rod 180 drives its telescopic end to move, so that the opening fixing pin 181 is inserted into the opening slot 243, thereby locking the opening push rod 240. When the opening electric push rod 180 drives its telescopic end to move, so that the opening fixing pin 181 exits the opening slot 243, the opening force storage spring 220 releases the elastic force, so that the opening push rod 240 retreats. When the closing push rod 230 is pulled out for a certain distance, the closing slot 232 on the closing push rod 230 corresponds to the closing fixing pin 171. At this time, the closing electric push rod 170 drives its telescopic end to move, so that the closing fixing pin 171 is inserted into the closing slot 232, thereby locking the closing push rod 230. When the closing electric push rod 170 drives its telescopic end to move, so that the closing fixing pin 171 exits the closing slot 232 , the closing force storage spring 210 releases its elastic force, so that the closing push rod 230 is pushed toward the connector 120 .

[0051] Optionally, the telescopic end of the closing electric push rod 170 is fixedly sleeved with a closing ring 172, the closing ring 172 is connected to a closing connection platform 173 through a support, and the closing fixing pin 171 is arranged on the side wall of the closing connection platform 173; the telescopic end of the opening electric push rod 180 is fixedly sleeved with an opening ring 182, the opening ring 182 is connected to an opening connection platform 183 through a support, and the opening fixing pin 181 is arranged on the side wall of the opening connection platform 183. Figure 4 As shown, when the telescopic end of the closing electric push rod 170 extends, the closing collar 172 is driven to move, so that the closing connecting platform 173 moves synchronously. In this way, the closing fixing pin 171 withdraws from the closing card slot 232 of the closing push rod 230, thereby unlocking the closing push rod 230. When the telescopic end of the closing electric push rod 170 retracts, the closing collar 172 is driven to move, so that the closing connecting platform 173 moves synchronously. In this way, the closing fixing pin 171 is inserted into the closing card slot 232 of the closing push rod 230, thereby locking the closing push rod 230. Similarly, when the telescopic end of the opening electric push rod 180 extends, the opening collar 182 is driven to move, so that the opening connecting platform 183 moves synchronously. In this way, the opening fixing pin 181 withdraws from the opening card slot 243 of the opening push rod 240, thereby unlocking the opening push rod 240. When the telescopic end of the opening electric push rod 180 is retracted, the opening ring 182 is driven to move, so that the opening connecting platform 183 moves synchronously. In this way, the opening fixing pin 181 is inserted into the opening slot 243 of the opening push rod 240 to lock the opening push rod 240.

[0052] Furthermore, it also includes a closing emergency pull rope 250 and an opening emergency pull rope 260; the closing connection platform 173 is connected to one end of the closing emergency pull rope 250, and the other end of the closing emergency pull rope 250 is connected to a closing pull ring 251 after passing through the outer shell 160; the opening connection platform 183 is connected to one end of the opening emergency pull rope 260, and the other end of the opening emergency pull rope 260 is connected to an opening pull ring 261 after passing through the outer shell 160.

[0053] In this way, when the system controlling the closing electric push rod 170 and the opening electric push rod 180 fails, the corresponding closing connecting platform 173 or the opening connecting platform 183 can be shifted by pulling the closing pull ring 251 or the opening pull ring 261, thereby causing the corresponding closing fixing pin 171 or the opening fixing pin 181 to exit the slot, thereby achieving a quick release of the closing force storage spring 210 or the opening force storage spring 220.

[0054] Furthermore, it also includes a flexible hanging overhead wire 300, one end of which is provided with a quick-connect plug 310, and the other end of which is provided with a drainage wire clamp 320; the bottom of the housing 160 is provided with a quick-connect socket electrically connected to the quick-connect plug 310. After the switch body 100 is hung on the overhead wire, the flexible hanging overhead wire 300 is inserted into the quick-connect socket through the quick-connect plug 310, so as to facilitate the connection between the flexible hanging overhead wire 300 and the switch body 100.

[0055] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. Bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables, characterized by: include A switch body, wherein the switch body is provided with an energy storage handle, the energy storage handle is provided with an energy storage cavity, the energy storage handle is provided with a hollow joint at the end of the energy storage cavity, one end of the joint is connected to the energy storage cavity, and the other end of the joint is provided with a conductive wire hook; the energy storage handle is sleeved with an insulating wire hook; the extension direction of the conductive wire hook is the same as the extension direction of the insulating wire hook, and is perpendicular to the central axis of the energy storage handle; An arc extinguishing component is arranged in the energy storage cavity to change the air pressure in the energy storage cavity.

2. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 1, characterized in that: The connector includes a hollow first connection part and a second connection part, the first connection part and the second connection part are connected in an L shape, one end of the first connection part is sleeved on the end of the energy storage handle, the other end of the first connection part is connected to one end of the second connection part, and the other end of the second connection part is connected to the conductive hanging wire hook.

3. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 2, characterized in that: The outer sleeve of the second connecting part is provided with a clamping sleeve, and the clamping sleeve is threadedly matched with the outer wall of the second connecting part.

4. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 1, characterized in that: The arc extinguishing assembly comprises a closing force storage spring, an opening force storage spring, a closing push rod and an opening push rod; The end of the opening push rod is provided with an abutment push plate, and the middle of the opening push rod is provided with an abutment boss; The end of the closing push rod is provided with a compression end head, and the compression end head is relatively slidably sleeved on the opening push rod; The closing force storage spring is sleeved on the opening push rod, one end of the closing force storage spring abuts against the compression end, and the other end of the closing force storage spring abuts against the abutting boss; One end of the opening brake force storage spring abuts against the end wall of the energy storage cavity, and the other end of the opening brake force storage spring abuts against the abutting push plate.

5. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 4, characterized in that: The switch body further comprises a housing, which is arranged at one end of the energy storage handle away from the joint, and one end of the closing push rod away from the opening spring and one end of the opening push rod away from the opening spring respectively pass through the housing; The closing push rod is provided with a closing slot, and the opening push rod is provided with an opening slot; A closing electric push rod and an opening electric push rod are arranged in the shell, the telescopic end of the closing electric push rod is connected with a closing fixing pin matched with the closing slot, and the telescopic end of the opening electric push rod is connected with an opening fixing pin matched with the opening slot.

6. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 5, characterized in that: The telescopic end of the closing electric push rod is fixedly sleeved with a closing collar, the closing collar is connected to a closing connection platform through a support, and the closing fixing pin is arranged on a side wall of the closing connection platform; The telescopic end of the opening brake electric push rod is fixedly sleeved with an opening brake collar, the opening brake collar is connected to an opening brake connecting platform through a support, and the opening brake fixing pin is arranged on the side wall of the opening brake connecting platform.

7. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 6, characterized in that: It also includes the emergency pull rope for closing and the emergency pull rope for opening; The closing connection platform is connected to one end of the closing emergency pull rope, and the other end of the closing emergency pull rope is connected to the closing pull ring after passing through the housing; The switch-off connection platform is connected to one end of a switch-off emergency pull rope, and the other end of the switch-off emergency pull rope is connected to a switch-off pull ring after passing through the housing.

8. The bidirectional energy storage arc extinguishing switch suitable for vertically arranged overhead cables according to claim 5, characterized in that: It also includes a flexible hanging overhead wire, one end of which is provided with a quick-connect plug, and the other end of which is provided with a drainage wire clamp; the bottom of the shell is provided with a quick-connect socket electrically connected to the quick-connect plug.

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