Overhead line route measuring device

Abstract

The application provides an overhead line diameter measuring device, which comprises a mounting seat, a fixed contact rod arranged on the mounting seat, a movable contact rod arranged on the mounting seat opposite to the fixed contact rod, the movable contact rod being movably arranged relative to the mounting seat, one side of the movable contact rod facing the fixed contact rod being provided with a wire passing protrusion, the movable contact rod and the fixed contact rod having an entering wire interval and an exiting wire interval, the entering wire interval being located on the side of the wire passing protrusion away from the mounting seat, and the exiting wire interval being located on the side of the wire passing protrusion facing the mounting seat, a stroke measuring piece arranged between the mounting seat and the movable contact rod to detect the movement stroke of the movable contact rod, and a communication piece in signal connection with the stroke measuring piece to output the measurement peak value of the stroke measuring piece. Through the technical scheme provided in the application, the problem that the line diameter of the line detected by the worker in the tower operation in the related art is high in danger coefficient, and the difficulty is higher if the work is live work can be solved.

Description

Technical Field

[0001] This invention relates to the field of power line technology, and more specifically, to an overhead line diameter measuring device. Background Technology

[0002] In power lines, due to differences in the years of construction and changes in ownership, some lines have missing wire diameter records. Therefore, during operation and maintenance, it is necessary to measure the lines with missing wire diameter records.

[0003] In related technologies, measuring the wire diameter of a line requires workers to climb the poles to make the measurements.

[0004] However, the process of workers climbing towers to inspect the wire diameter in related technologies carries a high risk factor, and it is even more difficult if the work is done while the line is energized. Summary of the Invention

[0005] This invention provides an overhead power line diameter measuring device to solve the problem in related technologies where workers climbing towers to inspect the wire diameter of power lines face high risks, and the difficulty is even greater if the work is done while the line is energized.

[0006] This invention provides an overhead power line diameter measuring device, comprising: a mounting base; a fixed contact rod disposed on the mounting base; a movable contact rod disposed on the mounting base opposite to the fixed contact rod, the movable contact rod being movably disposed relative to the mounting base, a wire-passing protrusion being provided on the side of the movable contact rod facing the fixed contact rod, an inlet wire gap and an outlet wire gap being provided between the movable contact rod and the fixed contact rod, the inlet wire gap being located on the side of the wire-passing protrusion facing the mounting base, and the outlet wire gap being located on the side of the wire-passing protrusion facing the mounting base; a stroke measuring element disposed between the mounting base and the movable contact rod to detect the movement stroke of the movable contact rod; and a communication element connected to the stroke measuring element to output the measured peak value of the stroke measuring element.

[0007] Furthermore, the movable contact rod includes: a movable rod, movably mounted on the mounting base; and a guide rod, disposed at the end of the movable rod opposite to the mounting base, the guide rod being set at an angle to the movable rod, the middle portion of the guide rod protruding towards the fixed contact rod to form a line-passing protrusion.

[0008] Furthermore, the guide rod includes a first inclined rod and a second inclined rod connected at an angle. The first inclined rod is located on the side of the second inclined rod away from the mounting base. The connection between the first inclined rod and the second inclined rod forms a wire-passing protrusion. The wire-in interval is set between the first inclined rod and the fixed contact rod, and the wire-out interval is set between the second inclined rod and the fixed contact rod.

[0009] Furthermore, the movable rod is oscillatingly mounted on the mounting base, and the oscillation axis of the movable rod is perpendicular to the fixed contact rod.

[0010] Furthermore, when the travel of the movable contact rod is zero, the movable rod is set at an angle relative to the fixed contact rod, and the movable rod gradually moves away from the fixed contact rod in the direction away from the mounting base.

[0011] Furthermore, the stroke measuring element includes: a fixed element, disposed on a mounting base; a movable element, movably disposed on the fixed element, with one end of the movable element facing away from the fixed element abutting against a movable contact rod; a detection element, disposed between the fixed element and the movable element, for detecting the stroke of the movable element; a communication element, signal-connected to the detection element, for outputting the measured peak value of the detection element; and a reset element, disposed between the fixed element and the movable element, for applying a reset force to the movable element to move it closer to the fixed contact rod.

[0012] Furthermore, a contact recess is provided on the side of the movable contact rod that is away from the fixed contact rod. The contact recess is provided in correspondence with the line-passing protrusion, and the end of the movable member that is away from the fixed member abuts against the contact recess.

[0013] Furthermore, the overhead line diameter measuring device also includes a display screen mounted on the mounting base, the display screen being signal-connected to the stroke measuring element to display the detection result of the stroke measuring element; and / or, the overhead line diameter measuring device also includes an insulating rod, with the mounting base disposed on the upper part of the insulating rod.

[0014] Furthermore, the mounting base includes a detachably connected front protective cover and a rear protective cover, which together form a protective cavity, where the travel measuring device and the communication device are both housed.

[0015] Furthermore, the travel measuring component and the communication component are both mounted on the rear protective cover, and the front protective cover is provided with a clearance opening into which the communication component extends; and / or, the mounting base also includes a first clamping plate, a second clamping plate, and fasteners. The first clamping plate and the second clamping plate are respectively located on both sides of the fixed contact rod. The first clamping plate is connected to the front protective cover, and the second clamping plate is connected to the rear protective cover. Fasteners pass through the first clamping plate, the second clamping plate, and the fixed contact rod, and the fasteners are respectively connected to the first clamping plate, the second clamping plate, and the fixed contact rod.

[0016] The overhead line diameter measuring device of this invention includes a mounting base, a fixed contact rod, a stroke measuring component, and a communication component. When the line under test moves towards the mounting base within the inlet interval, the line under test drives the movable contact rod away from the fixed contact rod. Then, the line under test passes through the through-line protrusion. When the line under test moves away from the mounting base within the outlet interval, the line under test drives the movable contact rod away from the fixed contact rod. During this process, the stroke measuring component is positioned between the mounting base and the movable contact rod to detect the movement stroke of the movable contact rod. The communication component is signal-connected to the stroke measuring component to output the measurement peak value of the stroke measuring component, which is the line diameter detection result of the line under test. This eliminates the need for manual tower climbing for reading, reducing operational difficulty and risk. 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 of the overhead line diameter measuring device provided according to an embodiment of the present invention is shown;

[0019] Figure 2 An exploded view of an overhead line diameter measuring device provided according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of the overhead line diameter measuring device provided according to an embodiment of the present invention is shown.

[0021] The above figures include the following reference numerals:

[0022] 1. Insulating rod;

[0023] 2. Mounting base; 201. Fixed contact rod; 202. Movable contact rod; 2021. Line guide protrusion; 2022. Guide rod; 2023. Abutment recess; 203. Stroke measuring element; 2031. Detection element; 2032. Display screen; 2033. Fixing element; 2034. Movable element; 204. Communication element; 205. Front protective cover; 2051. First clamping plate; 2055. Clearance opening; 206. Rear protective cover; 2061. Second clamping plate. Detailed Implementation

[0024] 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.

[0025] In related technologies, wire diameter measurement products are designed with reference to vernier calipers and require manual reading and recording, which is prone to reading and recording deviations. It requires manual climbing to the middle of the tower and operating at a position of about 2 meters away from the line. Mechanical vernier calipers have fine markings, making it difficult to read them in high-altitude environments.

[0026] like Figures 1 to 3As shown, this embodiment of the invention provides an overhead power line diameter measuring device. The overhead power line diameter measuring device includes a mounting base 2, a fixed contact rod 201, a stroke measuring element 203, and a communication element 204. The fixed contact rod 201 is disposed on the mounting base 2, and a movable contact rod 202 is disposed on the mounting base 2 opposite to the fixed contact rod 201. The movable contact rod 202 is movably disposed relative to the mounting base 2. A wire-passing protrusion 2021 is provided on the side of the movable contact rod 202 facing the fixed contact rod 201. There is an inlet wire gap and an outlet wire gap between the movable contact rod 202 and the fixed contact rod 201. The inlet wire gap is located on the side of the wire-passing protrusion 2021 away from the mounting base 2, and the outlet wire gap is located on the side of the wire-passing protrusion 2021 facing the mounting base 2. The stroke measuring element 203 is disposed between the mounting base 2 and the movable contact rod 202 to detect the movement stroke of the movable contact rod 202. The communication element 204 is signal-connected to the stroke measuring element 203 to output the measured peak value of the stroke measuring element 203.

[0027] The overhead line diameter measuring device provided in this embodiment includes a mounting base 2, a fixed contact rod 201, a stroke measuring element 203, and a communication element 204. When the line under test moves towards the mounting base 2 within the inlet interval, the line under test drives the movable contact rod 202 away from the fixed contact rod 201. Then, the line under test passes through the line-passing protrusion 2021. When the line under test moves away from the mounting base 2 within the outlet interval, the line under test drives the movable contact rod 202 away from the fixed contact rod 201. During this process, the stroke measuring element 203 is positioned between the mounting base 2 and the movable contact rod 202 to detect the movement stroke of the movable contact rod 202. The communication element 204 is signal-connected to the stroke measuring element 203 to output the measurement peak value of the stroke measuring element 203, which is the line diameter detection result of the line under test. There is no need for manual tower climbing to read the data, reducing the difficulty and risk factor of operation.

[0028] like Figure 1 and Figure 3 As shown, the movable contact rod 202 includes a movable rod and a guide rod 2022. The movable rod is movably mounted on the mounting base 2. The guide rod 2022 is located at the end of the movable rod away from the mounting base 2, forming an angle with the movable rod. The middle part of the guide rod 2022 protrudes towards the fixed contact rod 201 to form a wire-passing protrusion 2021. When the wire to be tested moves towards the mounting base 2 within the wire-in interval, the wire to be tested slides with the guide rod 2022 to drive the movable contact rod 202 away from the fixed contact rod 201. Then, the wire to be tested passes through the wire-passing protrusion 2021. When the wire to be tested moves away from the mounting base 2 within the wire-out interval, the wire to be tested slides with the guide rod 2022, driving the movable contact rod 202 away from the fixed contact rod 201.

[0029] like Figure 2 and Figure 3As shown, the guide rod 2022 includes a first inclined rod and a second inclined rod connected at an angle. The first inclined rod is located on the side of the second inclined rod away from the mounting base 2. The connection between the first and second inclined rods forms a wire-passing protrusion 2021. The wire-entry interval is set between the first inclined rod and the fixed contact rod 201, and the wire-exit interval is set between the second inclined rod and the fixed contact rod 201. When the wire to be tested moves towards the mounting base 2 within the wire-entry interval, the wire to be tested slides with the first inclined rod to drive the movable contact rod 202 away from the fixed contact rod 201. Then, the wire to be tested passes through the wire-passing protrusion 2021. When the wire to be tested moves away from the mounting base 2 within the wire-exit interval, the wire to be tested slides with the second inclined rod, and the wire to be tested drives the movable contact rod 202 away from the fixed contact rod 201.

[0030] like Figure 3 As shown, the movable rod is swayably mounted on the mounting base 2, and the swing axis of the movable rod is perpendicular to the fixed contact rod 201. When the test wire moves towards the mounting base 2 within the inlet wire interval, the test wire slides against the guide rod 2022 to drive the movable rod to swing, causing the movable contact rod 202 to move away from the fixed contact rod 201. Then, the test wire passes through the wire-passing protrusion 2021. When the test wire moves away from the mounting base 2 within the outlet wire interval, the test wire slides against the guide rod 2022, and the test wire drives the movable rod to swing, causing the movable contact rod 202 to move away from the fixed contact rod 201.

[0031] In this embodiment, when the travel distance of the movable contact rod 202 is zero, the movable rod is set at an angle relative to the fixed contact rod 201, and the movable rod gradually moves away from the fixed contact rod 201 in the direction away from the mounting base 2. With this structure, when the test wire moves towards the mounting base 2 within the inlet wire interval, and when the test wire moves away from the mounting base 2 within the outlet wire interval, the power required for the movable rod to swing is reduced, thus reducing the detection resistance.

[0032] like Figure 3 As shown, the stroke measuring component 203 includes a fixed component 2033, a movable component 2034, a detection element 2031, and a reset component. The fixed component 2033 is disposed on the mounting base 2, and the movable component 2034 is movably disposed on the fixed component 2033. One end of the movable component 2034 facing away from the fixed component 2033 abuts against the movable contact rod 202. The detection element 2031 is disposed between the fixed component 2033 and the movable component 2034 to detect the stroke of the movable component 2034. The communication component 204 is signal-connected to the detection element 2031 to output the measured peak value of the detection element 2031. The reset component is disposed between the fixed component 2033 and the movable component 2034 to apply a reset force to the movable component 2034 to move it closer to the fixed contact rod 201.

[0033] like Figure 3As shown, a recessed abutment 2023 is provided on the side of the movable contact rod 202 facing away from the fixed contact rod 201. The recessed abutment 2023 corresponds to the protruding part 2021. One end of the movable member 2034 facing away from the fixed member 2033 abuts against the recessed abutment 2023. By abutting one end of the movable member 2034 facing away from the fixed member 2033 against the recessed abutment 2023, separation of the movable member 2034 from the movable contact rod 202 can be prevented during the movement of the movable contact rod 202, thus preventing changes in the contact position between the movable member 2034 and the movable contact rod 202.

[0034] like Figure 3 As shown, the overhead line diameter measuring device also includes a display screen 2032 mounted on the mounting base 2. The display screen 2032 is signal-connected to the stroke measuring element 203 to display the detection results of the stroke measuring element 203.

[0035] like Figure 1 and Figure 2 As shown, the overhead line diameter measuring device also includes an insulating rod 1, and a mounting base 2 is disposed on the upper part of the insulating rod 1.

[0036] like Figure 3 As shown, the mounting base 2 includes a detachably connected front protective cover 205 and a rear protective cover 206. The front protective cover 205 and the rear protective cover 206 form a protective cavity. The stroke measuring component 203 and the communication component 204 are both located inside the protective cavity, which facilitates the assembly and maintenance of the stroke measuring component 203 and the communication component 204 inside the protective cavity.

[0037] like Figure 3 As shown, the travel measuring component 203 and the communication component 204 are both mounted on the rear protective cover 206, and the front protective cover 205 is provided with a clearance opening 2055, into which the communication component 204 extends.

[0038] like Figure 3 As shown, the mounting base 2 also includes a first clamping plate 2051, a second clamping plate 2061, and fasteners. The first clamping plate 2051 and the second clamping plate 2061 are respectively disposed on both sides of the fixed contact rod 201. The first clamping plate 2051 is connected to the front protective cover 205, and the second clamping plate 2061 is connected to the rear protective cover 206. Fasteners are inserted through the first clamping plate 2051, the second clamping plate 2061, and the fixed contact rod 201. The fasteners are connected to the first clamping plate 2051, the second clamping plate 2061, and the fixed contact rod 201 respectively, so as to facilitate quick and reliable installation of the mounting base 2.

[0039] Specifically, in use, hold the insulating rod 1, lift the mounting base 2 fixed on the insulating rod 1, place the fixed contact rod 201 on the overhead transmission line, and slowly push the insulating rod 1 upwards, so that the overhead transmission line slides down along the fixed contact rod 201 into the line entry interval and touches the guide rod 2022 of the movable contact rod 202. As the insulating rod 1 continues to be pushed upwards, the movable contact rod 202 is pushed open by the overhead transmission line, causing the movable contact rod 202 to rotate around the axis 2024. The line-passing protrusion 2021 leaves the fixed contact rod 201 and abuts against the concave part 2023, pushing the movable part 2034 of the stroke measuring element 203 backwards. The detection element 2031 begins to measure. When the overhead line reaches the highest point of the line-passing protrusion 2021, the detection element 2031 measures the peak value, which is the diameter of the overhead transmission line. The peak value can be read directly from the display screen 2032 on the stroke measuring component 203, or the data can be transmitted to the operator's mobile phone via Bluetooth connection through the communication component 204.

[0040] When measuring the diameter of overhead power distribution lines, this tool avoids the need for climbing and allows for live-line work. It is also designed with wireless data transmission capabilities, enabling real-time transmission of measurement data to a connected mobile phone or computer. This allows for quick and accurate recording, avoiding errors that may occur with manual data entry. This is a wire diameter measuring tool that allows for live-line work without the need for climbing.

[0041] Insulating rod 1 can be a standard insulating rod, and the length can be determined according to actual needs, generally 3-10 meters.

[0042] The overhead line diameter measuring device provided in this embodiment has the following beneficial effects:

[0043] (1) The conductor diameter measuring mechanism is made of insulating material. The measured value is displayed through a digital instrument, which is intuitive and accurate and can be used for live work.

[0044] (2) The measuring mechanism weighs less than one kilogram and can measure wire diameter by operating an insulated rod, enabling work without climbing, which is safe and efficient.

[0045] (3) All measurement data (including retest data) can be synchronized to mobile phones or computers, avoiding errors caused by verbal or written mistakes when manually entering data.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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. A device for measuring the diameter of an overhead power line, characterized in that, The overhead line diameter measuring device includes: Mounting base (2); A fixed contact rod (201) is mounted on the mounting base (2); A movable contact rod (202) is disposed on the mounting base (2) opposite to the fixed contact rod (201). The movable contact rod (202) is movably disposed relative to the mounting base (2). A wire-passing protrusion (2021) is provided on the side of the movable contact rod (202) facing the fixed contact rod (201). There is an inlet wire gap and an outlet wire gap between the movable contact rod (202) and the fixed contact rod (201). The inlet wire gap is located on the side of the wire-passing protrusion (2021) away from the mounting base (2), and the outlet wire gap is located on the side of the wire-passing protrusion (2021) facing the mounting base (2). A stroke measuring element (203) is disposed between the mounting base (2) and the movable contact rod (202) to detect the movement stroke of the movable contact rod (202); A communication device (204) is signal-connected to the travel measuring device (203) to output the measured peak value of the travel measuring device (203); The movable contact rod (202) includes a movable rod and a guide rod (2022). The movable rod is movably disposed on the mounting base (2). The guide rod (2022) is disposed at the end of the movable rod away from the mounting base (2). The guide rod (2022) is disposed at an angle to the movable rod. The middle part of the guide rod (2022) protrudes toward the fixed contact rod (201) to form the wire-passing protrusion (2021). The guide rod (2022) includes a first inclined rod and a second inclined rod connected at an angle. The first inclined rod is located on the side of the second inclined rod away from the mounting base (2). The connection between the first inclined rod and the second inclined rod forms the wire-passing protrusion (2021). The wire-entry interval is provided between the first inclined rod and the fixed contact rod (201). The wire-exit interval is provided between the second inclined rod and the fixed contact rod (201).

2. The overhead line diameter measuring device according to claim 1, characterized in that, The movable rod is swayably mounted on the mounting base (2), and the swing axis of the movable rod is perpendicular to the fixed contact rod (201).

3. The overhead line diameter measuring device according to claim 2, characterized in that, When the travel of the movable contact rod (202) is zero, the movable rod is set at an angle relative to the fixed contact rod (201), and the movable rod gradually moves away from the fixed contact rod (201) in a direction away from the mounting base (2).

4. The overhead line diameter measuring device according to claim 1, characterized in that, The stroke measuring element (203) includes: A fastener (2033) is provided on the mounting base (2); The movable part (2034) is movably disposed on the fixed part (2033), and the end of the movable part (2034) facing away from the fixed part (2033) abuts against the movable contact rod (202); A detection element (2031) is disposed between the fixed member (2033) and the movable member (2034) to detect the movement stroke of the movable member (2034). The communication element (204) is signal-connected to the detection element (2031) to output the measured peak value of the detection element (2031). A reset member is disposed between the fixed member (2033) and the movable member (2034) to apply a reset force to the movable member (2034) to move toward the fixed contact rod (201).

5. The overhead line diameter measuring device according to claim 4, characterized in that, The movable contact rod (202) has an abutting recess (2023) on the side opposite to the fixed contact rod (201). The abutting recess (2023) is provided in correspondence with the wire-passing protrusion (2021). The end of the movable member (2034) opposite to the fixed member (2033) abuts against the abutting recess (2023).

6. The overhead line diameter measuring device according to claim 1, characterized in that, The overhead line diameter measuring device also includes a display screen (2032) mounted on the mounting base (2), the display screen (2032) being signal-connected to the stroke measuring element (203) to display the detection result of the stroke measuring element (203); and / or, The overhead line diameter measuring device also includes an insulating rod (1), and the mounting base (2) is disposed on the upper part of the insulating rod (1).

7. The overhead line diameter measuring device according to claim 1, characterized in that, The mounting base (2) includes a detachably connected front protective cover (205) and a rear protective cover (206), which together form a protective cavity. The travel measuring element (203) and the communication element (204) are both located within the protective cavity.

8. The overhead line diameter measuring device according to claim 7, characterized in that, The travel measuring element (203) and the communication element (204) are both mounted on the rear protective cover (206), and the front protective cover (205) is provided with a clearance opening (2055), into which the communication element (204) extends; and / or, The mounting base (2) further includes a first clamping plate (2051), a second clamping plate (2061), and fasteners. The first clamping plate (2051) and the second clamping plate (2061) are respectively disposed on both sides of the fixed contact rod (201). The first clamping plate (2051) is connected to the front protective cover (205), and the second clamping plate (2061) is connected to the rear protective cover (206). The fasteners pass through the first clamping plate (2051), the second clamping plate (2061), and the fixed contact rod (201), and the fasteners are respectively connected to the first clamping plate (2051), the second clamping plate (2061), and the fixed contact rod (201).

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