Insulating operating lever and method of operating a disconnector

Abstract

The application provides an insulating operating rod and an operating method of an isolating switch. The insulating operating rod comprises: an operating head having a containing cavity, one end of the operating head having an opening; a telescopic assembly comprising a driving mechanism and a moving piece, the moving piece having a storage state and an extension state, the driving mechanism being in driving connection with a first end of the moving piece; a current detection piece being arranged on the moving piece; and a controller being arranged on the operating head and being in signal connection with the current detection piece and the driving mechanism. When the current detection piece detects that the knife switch has current, the controller controls the driving mechanism according to the detection signal of the current detection piece, so that the driving mechanism drives the moving piece to remain in the storage state. Through the technical scheme provided in the application, the risk that the knife switch of the isolating switch in the related art may have load can be solved, the current of the knife switch is not detected, and thus the problem that the knife switch is turned on or turned off when the knife switch is electrified, arc is generated, equipment is damaged, and even personal safety is threatened can be solved.

Description

Technical Field

[0001] This invention relates to the field of operating lever technology, and more specifically, to an insulated operating lever and an operating method for a disconnecting switch. Background Technology

[0002] An insulated operating rod is a versatile product used in the production, operation, and maintenance of power systems. It is primarily used as an insulating tool for short-term operation of live equipment, such as connecting or disconnecting high-voltage disconnect switches and drop-out fuses. It ensures the safety of operators when working with high-voltage electrical equipment, preventing electric shock.

[0003] In related technologies, the disconnect switch, as a device for cutting off the circuit in the power outage and restoration of 10kV distribution network, is an important tool to strictly ensure the power outage and construction function of the line. In order to avoid the risk of electric shock caused by live work, the disconnect switch is directly controlled by the insulated operating rod to perform power-off or power-on operations.

[0004] However, when operators use insulated operating rods to operate the disconnect switches, there is a risk of the disconnector being under load. The current of the disconnector is not detected, which may lead to the disconnector being energized and then being connected or disconnected, resulting in electric arcs that could damage equipment or even threaten personal safety. Summary of the Invention

[0005] This invention provides an insulated operating rod and an operating method for a disconnecting switch to solve the problem that disconnecting switches in related technologies may have the risk of being under load, and the current of the disconnecting switch is not detected. As a result, when the disconnecting switch is energized, connecting or disconnecting the power can generate an electric arc, causing damage to equipment or even threatening personal safety.

[0006] According to one aspect of the present invention, an insulating operating rod is provided, comprising: an operating head having a receiving cavity, one end of the operating head having an opening communicating with the receiving cavity; a telescopic assembly including a drive mechanism and a moving member, both the drive mechanism and the moving member being disposed within the receiving cavity, the moving member having a retracted state retracted within the receiving cavity and an extended state with a second end of the moving member extending outside the opening, the drive mechanism being drivenly connected to a first end of the moving member to switch the moving member between the retracted state and the extended state; a current detection element disposed on the moving member; a controller disposed on the operating head and signal-connected to both the current detection element and the drive mechanism, wherein when the current detection element detects current in the switch, the controller controls the drive mechanism according to the detection signal of the current detection element to drive the moving member to remain in the retracted state; and a handle, one end of the handle being detachably connected to the operating head.

[0007] Furthermore, the driving mechanism includes a push driving mechanism and an elastic element. The push driving mechanism drives the moving part to switch from a retracted state to an extended state. The elastic element is sleeved on the moving part. The first end of the elastic element abuts against the operating head, and the second end of the elastic element abuts against the moving part. When the moving part is in the extended state, the elastic element is in the compressed state. The elastic element can drive the moving part to switch from the extended state to the retracted state.

[0008] Furthermore, the drive mechanism also includes a position relay, which is mounted on the operating head. The position relay has a drive unit and a locking block. The drive unit is mounted on the operating head, and the locking block is movably mounted on the operating head. The drive unit is drivenly connected to the locking block. When the moving part is in the extended state, the locking block extends into the receiving cavity and locks with the moving part to keep the moving part in the extended state. When the moving part is in the extended state and the current detection element detects that the switch has current, the controller controls the locking block to unlock the moving part according to the detection signal of the current detection element, so that the elastic element drives the moving part to switch from the extended state to the retracted state.

[0009] Furthermore, the current sensing element is a Hall element; and / or, there are multiple current sensing elements, which are spaced apart along the length direction of the moving element.

[0010] Furthermore, the movable component includes a movable rod, on which a first fixing block is fixedly disposed, and a second fixing block is fixedly disposed near the opening of the receiving cavity. The second end of the movable rod passes through the second fixing block, and an elastic element is sleeved on the movable rod. The first end of the elastic element is connected to the first fixing block, and the second end of the elastic element abuts against the second fixing block. When the movable component is in the extended state, the locking block abuts against the first fixing block.

[0011] Furthermore, the telescopic assembly also includes a transmission component, which includes a rotating cam and a connecting rod. The rotating cam is rotatably disposed within the receiving cavity, and the first end of the connecting rod is hinged to the rotating cam, while the second end of the connecting rod is hinged to the first end of the moving component.

[0012] Furthermore, the driving mechanism includes a drive motor and a drive gear. The drive motor and the drive gear are connected in a driving connection. The rotating cam is equipped with a transmission gear and a rotating column. The rotating column passes through the transmission gear and the rotating cam in sequence. The drive gear meshes with the transmission gear to drive the rotating cam to rotate.

[0013] Furthermore, the insulating operating rod also includes a first limit switch and a second limit switch. Both the first and second limit switches are disposed within the receiving cavity and are spaced apart. The first limit switch is located between the opening and the second limit switch. When the moving part is in the extended state, the rotating cam abuts against the first limit switch. Both the first limit switch and the position relay are connected to the controller signal to allow the locking block to extend into the receiving cavity and abut against the moving part. When the moving part is in the retracted state, the rotating cam abuts against the second limit switch. The second limit switch is connected to the drive mechanism signal to control the drive mechanism to stop running.

[0014] Furthermore, the handle includes a connecting rod and a gripping part, the connecting rod is connected to the gripping part, the operating head is provided with an external thread, one end of the connecting rod is provided with an internal thread, and the external thread is connected to the internal thread.

[0015] According to another aspect of the present invention, an operating method for a disconnecting switch is provided. The operating method of the disconnecting switch is implemented by the aforementioned insulating operating rod. The operating method of the disconnecting switch includes: bringing the insulating operating rod close to the pull ring of the disconnecting switch's knife switch; obtaining a first current value on the pull ring through a current detection element of the insulating operating rod; comparing the first current value detected by the current detection element with a preset current value; if the first current value is greater than the preset current value, placing the moving part in a retracted state; if the first current value is less than the preset current value, extending the moving part of the insulating operating rod to pull open the pull ring; during the step of extending the moving part of the insulating operating rod, detecting a second current value on the pull ring through the current detection element; if the second current value is greater than the preset current value, switching the moving part from the extended state to the retracted state; if the second current value is less than the preset current value, keeping the moving part in the extended state.

[0016] According to the technical solution of this invention, the insulating operating rod includes an operating head, a telescopic component, a current detection element, a controller, and a handle. The operating head has a receiving cavity, and an opening is provided at one end of the operating head, which communicates with the receiving cavity. The driving mechanism and the moving part of the telescopic component are both disposed in the receiving cavity. The moving part has a retracted state and an extended state. The driving mechanism is drivenly connected to the first end of the moving part, so that the moving part can switch between the retracted state and the extended state under the action of the driving mechanism. The current detection element is disposed on the moving part, and the controller is disposed in the receiving cavity. The controller can be signal connected to the current detection element and the driving mechanism respectively. Specifically, the operator moves the operating head to the pull ring of the disconnect switch using the handle. The current detection device detects the current in the disconnect switch. When the current detection device detects current in the disconnect switch, the controller controls the drive mechanism to keep the moving part in the retracted state based on the detection signal from the current detection device. If the current detection device detects no current in the disconnect switch, the drive mechanism drives the moving part to switch from the retracted state to the extended state, allowing the moving part to pass through the opening on the operating head into the receiving cavity. The extended moving part then drives the disconnect switch to disconnect. This avoids operator intervention when the disconnect switch is energized. When the disconnect switch is energized, the moving part remains in the retracted state, housed within the receiving cavity. When the disconnect switch is de-energized, the moving part switches from the retracted state to the extended state under the action of the drive mechanism. This facilitates operation of the disconnect switch using the moving part, preventing arcing of the disconnect switch, avoiding safety accidents, and improving the practicality and structural reliability of the insulated operating rod. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram is shown of the movable part of the insulating operating rod provided according to an embodiment of the present invention in a retracted state;

[0019] Figure 2 A schematic diagram showing the extension of the movable part of the insulating operating rod according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram is shown of the movable part of the insulating operating rod provided according to an embodiment of the present invention in the extended state;

[0021] Figure 4 This is a schematic diagram showing another perspective of the movable part of the insulating operating rod provided according to an embodiment of the present invention in the extended state;

[0022] Figure 5A cross-sectional view of the push drive mechanism of the insulating operating rod provided according to an embodiment of the present invention is shown;

[0023] Figure 6 A cross-sectional view of the first limit switch of the insulating operating rod provided according to an embodiment of the present invention is shown;

[0024] Figure 7 A cross-sectional view of the position relay of the insulating operating rod provided according to an embodiment of the present invention is shown;

[0025] Figure 8 A schematic diagram of the handle of an insulated operating rod provided according to an embodiment of the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 10. Operating head; 11. Receiving cavity; 12. Opening; 13. Second fixing block;

[0028] 20. Telescopic assembly; 21. Drive mechanism; 211. Push drive mechanism; 2111. Drive motor; 2112. Drive gear; 212. Elastic element; 213. Position relay; 2131. Locking block; 22. Moving part; 221. Moving rod; 222. First fixed block; 23. Transmission part; 231. Rotating cam; 232. Connecting rod; 233. Transmission gear; 234. Rotating column;

[0029] 30. Current detection device;

[0030] 40. Controller;

[0031] 50. Handle; 52. Grip part;

[0032] 61. First limit switch; 62. Second limit switch. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 8As shown, this embodiment of the invention provides an insulated operating rod, which includes an operating head 10, a telescopic assembly 20, a current detection element 30, a controller 40, and a handle 50. The operating head 10 has a receiving cavity 11, and one end of the operating head 10 has an opening 12 communicating with the receiving cavity 11. The telescopic assembly 20 includes a driving mechanism 21 and a moving member 22, both of which are disposed within the receiving cavity 11. The moving member 22 has a retracted state within the receiving cavity 11 and an extended state where its second end extends out of the opening 12. In the operation head 10, the drive mechanism 21 is driven to the first end of the moving part 22 so that the moving part 22 switches between the retracted state and the extended state. The current detection element 30 is set on the moving part 22. The controller 40 is set on the operation head 10 and is signal-connected to both the current detection element 30 and the drive mechanism 21. When the current detection element 30 detects that the switch has current, the controller 40 controls the drive mechanism 21 according to the detection signal of the current detection element 30 so that the drive mechanism 21 drives the moving part 22 to remain in the retracted state. One end of the handle 50 is detachably connected to the operation head 10.

[0035] The insulating operating rod provided in this embodiment includes an operating head 10, a telescopic component 20, a current detection element 30, a controller 40, and a handle 50. The operating head 10 has a receiving cavity 11, and an opening 12 is provided at one end of the operating head 10, which is connected to the receiving cavity 11. The driving mechanism 21 and the moving part 22 of the telescopic component 20 are both disposed in the receiving cavity 11. The moving part 22 has a retracted state and an extended state. The driving mechanism 21 is drivenly connected to the first end of the moving part 22, so that the moving part 22 can switch between the retracted state and the extended state under the action of the driving mechanism 21. The current detection element 30 is disposed on the moving part 22, and the controller 40 is disposed in the receiving cavity 11. The controller 40 can be signal connected to the current detection element 30 and the driving mechanism 21 respectively. Specifically, the operator operates the handle 50 to move the operating head 10 into the pull ring of the disconnect switch. The current detection element 30 can detect the current of the disconnect switch. When the current detection element 30 detects current on the disconnect switch, the controller 40 controls the drive mechanism 21 to drive the moving part 22 to remain in the retracted state based on the detection signal of the current detection element 30. If the current detection element 30 detects no current on the disconnect switch, the drive mechanism 21 drives the moving part 22 to switch from the retracted state to the extended state, thereby allowing the moving part 22 to pass through the opening 12 on the operating head 10 and out of the receiving cavity 11. The movable part 22 extends to drive the disconnect switch for disconnection, thus avoiding operator intervention when the disconnect switch is energized. When the disconnect switch is energized, the movable part 22 remains in a retracted state within the receiving cavity 11. When the disconnect switch is de-energized, the movable part 22 switches from the retracted state to the extended state under the action of the drive mechanism 21. This facilitates operation of the disconnect switch by using the movable part 22, preventing arcing of the disconnect switch, avoiding safety accidents, and improving the practicality and structural reliability of the insulating operating rod.

[0036] It should be noted that when the movable part 22 is in the retracted state, it will not extend and will remain in the retracted state. When the movable part 22 is in the extended state, if the switch is powered on, it will retract to the retracted state.

[0037] like Figures 1 to 4As shown, the drive mechanism 21 includes a push drive mechanism 211 and an elastic member 212. The push drive mechanism 211 drives the moving member 22 to switch from a retracted state to an extended state. The elastic member 212 is sleeved on the moving member 22. The first end of the elastic member 212 abuts against the operating head 10, and the second end of the elastic member 212 abuts against the moving member 22. When the moving member 22 is in the extended state, the elastic member 212 is in the compressed state. The elastic member 212 can drive the moving member 22 to switch from the extended state to the retracted state. With the above structure, the push drive mechanism 211 can drive the movable part 22 to switch from the retracted state to the extended state. The movable part 22 is fitted with an elastic element 212. Since the first end of the elastic element 212 abuts against the operating head 10 and the second end of the elastic element 212 abuts against the movable part 22, when the movable part 22 passes through the opening 12 and switches from the retracted state to the extended state, the elastic element 212 is compressed and in a compressed state. This ensures that when the switch is suddenly de-energized, the push drive mechanism 211 will not drive the movable part 22 to extend. Relying on the compression force of the elastic element 212, the movable part 22 can be reset from the extended state to the retracted state. This makes it easy to use the current detection element 30 to detect whether there is current on the switch and makes it easy for the operator to identify.

[0038] like Figures 1 to 4 as well as Figure 7 As shown, the drive mechanism 21 also includes a position relay 213, which is disposed on the operating head 10. The position relay 213 has a drive part and a locking block 2131. The drive part is disposed on the operating head 10, and the locking block 2131 is movably disposed on the operating head 10. The drive part is drivenly connected to the locking block 2131. When the moving part 22 is in the extended state, the locking block 2131 extends into the receiving cavity 11 and locks with the moving part 22 to keep the moving part 22 in the extended state. When the moving part 22 is in the extended state and the current detection element 30 detects that the switch has current, the controller 40 controls the locking block 2131 to unlock the moving part 22 according to the detection signal of the current detection element 30, so that the elastic element 212 drives the moving part 22 to switch from the extended state to the retracted state. With the above structure, a position relay 213 is provided on the operating head 10. The driving part of the position relay 213 can drive the locking block 2131 to pass through the operating head 10, so that when the moving part 22 is in the extended state, the driving part drives the locking block 2131 to extend into the receiving cavity 11 and lock with the moving part 22, so that the locking block 2131 can play a locking role and prevent it from being reset by the elastic member 212. If the moving part 22 is in the extended state and the current detection element 30 detects that there is current in the knife switch, the controller 40 controls the locking block 2131 to unlock the moving part 22 according to the detection signal of the current detection element 30, so that the moving part 22 can be reset under the action of the elastic member 212, and the moving part 22 switches from the extended state to the retracted state.

[0039] In this embodiment, the current detection element 30 is a Hall element. Using the above structure, the Hall element facilitates the detection of current on the disconnect switch.

[0040] In this embodiment, there are multiple current detection elements 30, which are spaced apart along the length of the movable element 22. By using this structure, and by spaced multiple current detection elements 30 along the length of the movable element 22, it is convenient for the operator to insert the movable element 22 into the pull ring on the switch when it is in the extended state. This allows for current detection using multiple current detection elements 30, improving the practicality and structural reliability of the insulating operating rod.

[0041] like Figures 1 to 4 As shown, the movable member 22 includes a movable rod 221, on which a first fixing block 222 is fixedly disposed. A second fixing block 13 is fixedly disposed near the opening 12 of the receiving cavity 11. The second end of the movable rod 221 passes through the second fixing block 13. An elastic member 212 is sleeved on the movable rod 221. The first end of the elastic member 212 is connected to the first fixing block 222, and the second end of the elastic member 212 abuts against the second fixing block 13. When the movable member 22 is in the extended state, the locking block 2131 abuts against the first fixing block 222. With the above structure, a first fixing block 222 is fixedly installed on the moving rod 221, and a second fixing block 13 is fixedly installed near the opening 12 of the receiving cavity 11. The first end of the elastic member 212 is connected to the first fixing block 222, and the second end of the elastic member 212 abuts against the second fixing block 13. This makes it easy to reset the moving rod 221 using the elastic member 212. When the moving member 22 is in the extended state, the locking block 2131 abuts against the first fixing block 222, which makes it easy to ensure that the moving member 22 is in the extended state.

[0042] As shown in this embodiment, the telescopic assembly 20 further includes a transmission member 23, which includes a rotating cam 231 and a connecting rod 232. The rotating cam 231 is rotatably disposed within the receiving cavity 11. The first end of the connecting rod 232 is hinged to the rotating cam 231, and the second end of the connecting rod 232 is hinged to the first end of the moving member 22. With the transmission member 23 having the above structure, the rotating cam 231 can rotate within the receiving cavity 11. The first end of the connecting rod 232 is hinged to the rotating cam 231, and the second end of the connecting rod 232 is hinged to the first end of the moving member 22. Therefore, when the rotating cam 231 rotates, the moving member 22 can be controlled to switch between an extended state and a retracted state under the action of the connecting rod 232.

[0043] like Figure 4 and Figure 5As shown, the drive mechanism 211 includes a drive motor 2111 and a drive gear 2112. The drive motor 2111 and the drive gear 2112 are connected in a drive connection. A transmission gear 233 and a rotating column 234 are provided on the rotating cam 231. The rotating column 234 passes through the transmission gear 233 and the rotating cam 231 in sequence. The drive gear 2112 meshes with the transmission gear 233 to drive the rotating cam 231 to rotate. The drive motor 2111 can control the rotation of the drive gear 2112. When the drive gear 2112 drives the transmission gear 233 to mesh, the rotation of the transmission gear 233 drives the rotation of the rotating column 234, which in turn drives the rotating cam 231 to rotate. This facilitates the rotation of the rotating cam 231, allowing the moving part 22 to switch between an extended state and a retracted state.

[0044] like Figures 1 to 4 As shown, the insulating operating rod also includes a first limit switch 61 and a second limit switch 62. Both the first limit switch 61 and the second limit switch 62 are disposed in the receiving cavity 11, and are spaced apart. The first limit switch 61 is located between the opening 12 and the second limit switch 62. When the moving part 22 is in the extended state, the rotating cam 231 abuts against the first limit switch 61. The first limit switch 61 and the position relay 213 are both signal-connected to the controller 40, so that the locking block 2131 extends into the receiving cavity 11 and abuts against the moving part 22. When the moving part 22 is in the retracted state, the rotating cam 231 abuts against the second limit switch 62. The second limit switch 62 is signal-connected to the drive mechanism 21, so as to control the drive mechanism 21 to stop running. With the above structure, the first limit switch 61 and the second limit switch 62 are spaced apart, with the first limit switch 61 located between the opening 12 and the second limit switch 62. When the moving part 22 is in the extended state, the rotating cam 231 abuts against the first limit switch 61, causing the first limit switch 61 to transmit a signal to the controller 40. The controller then controls the drive motor 2111 to stop running. At this time, the locking block 2131 of the position relay 213 extends into the receiving cavity 11 and abuts against the first fixing block 222, thereby preventing the moving part from... 22 is reset under the action of elastic element 212. When current detection element 30 detects current, current detection element 30 transmits signal to controller 40. Controller 40 controls the drive unit of position relay 213 to drive the card block 2131 to retract and move out of receiving cavity 11. Moving element 22 is reset through elastic element 212. At this time, moving element 22 drives rotating cam 231 to abut against second limit switch 62 through connecting rod 232. This can control drive mechanism 21 to stop running, so that moving element 22 can be kept in the storage state.

[0045] like Figure 8As shown, the handle 50 includes a connecting rod and a gripping part 52. The connecting rod is connected to the gripping part 52. The operating head 10 is provided with an external thread, and one end of the connecting rod is provided with an internal thread. The external thread and the internal thread are connected. With the above-described structure, the operating head 10 is provided with an external thread, and one end of the connecting rod is provided with an internal thread. The connection between the external thread and the internal thread facilitates the threaded connection between the connecting rod and the operating head 10, enabling a detachable connection between the operating head 10 and the handle 50, thus making disassembly convenient.

[0046] It should be noted that the gripping part 52 is equipped with a reset switch and a display screen. The display screen can display the current level in real time. When it is necessary to operate using the moving part 22, the reset switch can perform a reset operation, so that the moving part 22 switches to the storage state.

[0047] Another embodiment of the present invention provides a method for operating a disconnecting switch. The method for operating the disconnecting switch is implemented using the insulating operating rod provided above. The method for operating the disconnecting switch includes:

[0048] Bring the insulating operating rod close to the pull ring of the disconnector switch, and obtain the first current value on the pull ring through the current detection element 30 of the insulating operating rod;

[0049] The first current value detected by the current detection element 30 is compared with the preset current value. If the first current value is greater than the preset current value, the moving part 22 is put into a retracted state. If the first current value is less than the preset current value, the moving part 22 of the insulating operating rod is extended to pull open the pull ring through the moving part 22.

[0050] During the extension of the movable part 22 of the insulating operating rod, the second current value on the pull ring is detected by the current detection part 30;

[0051] If the second current value is greater than the preset current value, the movable member 22 switches from the extended state to the retracted state; if the second current value is less than the preset current value, the movable member 22 remains in the extended state.

[0052] Using the above steps, the insulating operating rod approaches the pull ring of the disconnector switch. The current detection element 30 obtains the first current value on the pull ring and compares it with a preset current value. If the first current value is greater than the preset current value, the moving part 22 is retracted, allowing the operator to easily observe whether the pull ring is energized. If the first current value is less than the preset current value, the moving part 22 of the insulating operating rod extends to pull the pull ring. When the moving part 22 extends, if the pull ring is energized, and the current detection element 30 on the moving part 22 detects a second current value in real time, if the second current value is greater than the preset current value, the moving part 22 switches from the extended state to the retracted state. This prevents a sudden surge of power when the moving part 22 gradually extends, which could cause the disconnector to operate under load and lead to a dangerous accident. If the second current value is less than the preset current value, the moving part 22 remains extended, and the disconnector switch can be pulled using the insulating operating rod.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0055] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0056] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An insulated operating rod, characterized in that, The insulating operating rod includes: The operating head (10) has a receiving cavity (11), and one end of the operating head (10) has an opening (12) communicating with the receiving cavity (11). The telescopic assembly (20) includes a drive mechanism (21) and a moving part (22). Both the drive mechanism (21) and the moving part (22) are disposed in the receiving cavity (11). The moving part (22) has a retracted state that is housed in the receiving cavity (11) and an extended state in which the second end of the moving part (22) extends out of the opening (12). The drive mechanism (21) is driven to the first end of the moving part (22) so that the moving part (22) switches between the retracted state and the extended state. A current detection element (30) is disposed on the moving element (22); The controller (40) is mounted on the operating head (10) and is signal connected to both the current detection element (30) and the drive mechanism (21). When the current detection element (30) detects that the switch has current, the controller (40) controls the drive mechanism (21) according to the detection signal of the current detection element (30) so that the drive mechanism (21) drives the moving part (22) to remain in the storage state. A handle (50), one end of which is detachably connected to the operating head (10); The drive mechanism (21) includes a push drive mechanism (211) and an elastic element (212). The push drive mechanism (211) drives the moving part (22) to switch from the retracted state to the extended state, and the elastic element (212) can drive the moving part (22) to switch from the extended state to the retracted state. The drive mechanism (21) also includes a position relay (213), which is disposed on the operating head (10). The position relay (213) has a drive part and a locking block (2131). When the moving part (22) is in the extended state and the current detection element (30) detects that the switch has current, the controller (40) controls the locking block (2131) to unlock the moving part (22) according to the detection signal of the current detection element (30), so that the elastic element (212) drives the moving part (22) to switch from the extended state to the retracted state. There are multiple current detection elements (30), and the multiple current detection elements (30) are spaced apart along the length direction of the moving element (22).

2. The insulating operating rod according to claim 1, characterized in that, The elastic element (212) is sleeved on the movable element (22). The first end of the elastic element (212) abuts against the operating head (10), and the second end of the elastic element (212) abuts against the movable element (22). When the movable element (22) is in the extended state, the elastic element (212) is in the compressed state.

3. The insulating operating rod according to claim 2, characterized in that, The drive unit is disposed on the operating head (10), and the locking block (2131) is movably disposed on the operating head (10). The drive unit is drivenly connected to the locking block (2131). When the moving member (22) is in the extended state, the locking block (2131) extends into the receiving cavity (11) and locks with the moving member (22) so that the moving member (22) is kept in the extended state.

4. The insulating operating rod according to claim 2, characterized in that, The current sensing element (30) is a Hall element.

5. The insulating operating rod according to claim 3, characterized in that, The movable component (22) includes a movable rod (221), on which a first fixing block (222) is fixedly disposed. A second fixing block (13) is fixedly disposed near the opening (12) of the receiving cavity (11). The second end of the movable rod (221) passes through the second fixing block (13). The elastic element (212) is sleeved on the movable rod (221). The first end of the elastic element (212) is connected to the first fixing block (222), and the second end of the elastic element (212) abuts against the second fixing block (13). When the movable component (22) is in the extended state, the locking block (2131) abuts against the first fixing block (222).

6. The insulating operating rod according to claim 3, characterized in that, The telescopic assembly (20) also includes a transmission component (23), which includes a rotating cam (231) and a connecting rod (232). The rotating cam (231) is rotatably disposed in the receiving cavity (11). The first end of the connecting rod (232) is hinged to the rotating cam (231), and the second end of the connecting rod (232) is hinged to the first end of the moving component (22).

7. The insulating operating rod according to claim 6, characterized in that, The drive mechanism (211) includes a drive motor (2111) and a drive gear (2112). The drive motor (2111) is connected to the drive gear (2112). The rotating cam (231) is provided with a transmission gear (233) and a rotating column (234). The rotating column (234) passes through the transmission gear (233) and the rotating cam (231) in sequence. The drive gear (2112) meshes with the transmission gear (233) to drive the rotating cam (231) to rotate.

8. The insulating operating rod according to claim 7, characterized in that, The insulating operating rod also includes a first limit switch (61) and a second limit switch (62). Both the first limit switch (61) and the second limit switch (62) are disposed within the receiving cavity (11), and are spaced apart. The first limit switch (61) is located between the opening (12) and the second limit switch (62). When the moving member (22) is in the extended state, the rotating cam (231) interacts with the first limit switch. When the first limit switch (61) and the position relay (213) are both connected to the controller (40), the card block (2131) extends into the receiving cavity (11) and abuts against the moving part (22). When the moving part (22) is in the retracted state, the rotating cam (231) abuts against the second limit switch (62). The second limit switch (62) is connected to the drive mechanism (21) to control the drive mechanism (21) to stop running.

9. The insulating operating rod according to claim 1, characterized in that, The handle (50) includes a connecting rod and a gripping part (52). The connecting rod is connected to the gripping part (52). The operating head (10) is provided with an external thread, and one end of the connecting rod is provided with an internal thread. The external thread is connected to the internal thread.

10. A method for operating a disconnecting switch, characterized in that, The operation method of the disconnecting switch is implemented by the insulating operating rod according to any one of claims 1 to 9, and the operation method of the disconnecting switch includes: Bring the insulating operating rod close to the pull ring of the disconnect switch, and obtain the first current value on the pull ring through the current detection element (30) of the insulating operating rod; The first current value detected by the current detection element (30) is compared with the preset current value. If the first current value is greater than the preset current value, the moving part (22) is put into a retracted state. If the first current value is less than the preset current value, the moving part (22) of the insulating operating rod is extended to pull open the pull ring through the moving part (22). During the step of extending the movable part (22) of the insulating operating rod, a second current value on the pull ring is detected by the current detection element (30); If the second current value is greater than the preset current value, the movable part (22) switches from the extended state to the retracted state; if the second current value is less than the preset current value, the movable part (22) remains in the extended state.

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